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1123 | serge | 1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation |
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3 | * Copyright (c) 2007 Dave Airlie |
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4 | * Copyright (c) 2008 Red Hat Inc. |
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5 | * |
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6 | * DRM core CRTC related functions |
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7 | * |
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8 | * Permission to use, copy, modify, distribute, and sell this software and its |
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9 | * documentation for any purpose is hereby granted without fee, provided that |
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10 | * the above copyright notice appear in all copies and that both that copyright |
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11 | * notice and this permission notice appear in supporting documentation, and |
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12 | * that the name of the copyright holders not be used in advertising or |
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13 | * publicity pertaining to distribution of the software without specific, |
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14 | * written prior permission. The copyright holders make no representations |
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15 | * about the suitability of this software for any purpose. It is provided "as |
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16 | * is" without express or implied warranty. |
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17 | * |
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18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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24 | * OF THIS SOFTWARE. |
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25 | * |
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26 | * Authors: |
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27 | * Keith Packard |
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28 | * Eric Anholt |
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29 | * Dave Airlie |
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30 | * Jesse Barnes |
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31 | */ |
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4075 | Serge | 32 | #include |
1179 | serge | 33 | #include |
1963 | serge | 34 | #include |
3031 | serge | 35 | #include |
36 | #include |
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37 | #include |
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38 | #include |
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39 | #include |
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5060 | serge | 40 | #include |
6084 | serge | 41 | #include |
1123 | serge | 42 | |
5060 | serge | 43 | #include "drm_crtc_internal.h" |
5271 | serge | 44 | #include "drm_internal.h" |
5060 | serge | 45 | |
6084 | serge | 46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, |
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6937 | serge | 48 | const struct drm_mode_fb_cmd2 *r, |
6084 | serge | 49 | struct drm_file *file_priv); |
5060 | serge | 50 | |
1123 | serge | 51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ |
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4075 | Serge | 53 | const char *fnname(int val) \ |
1123 | serge | 54 | { \ |
55 | int i; \ |
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56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
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57 | if (list[i].type == val) \ |
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58 | return list[i].name; \ |
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59 | } \ |
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60 | return "(unknown)"; \ |
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61 | } |
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62 | |||
63 | /* |
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64 | * Global properties |
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65 | */ |
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6084 | serge | 66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, |
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1123 | serge | 68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
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70 | { DRM_MODE_DPMS_OFF, "Off" } |
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71 | }; |
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72 | |||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
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74 | |||
6084 | serge | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
5060 | serge | 76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, |
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78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, |
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79 | }; |
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80 | |||
1123 | serge | 81 | /* |
82 | * Optional properties |
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83 | */ |
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6084 | serge | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
1179 | serge | 85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, |
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87 | { DRM_MODE_SCALE_CENTER, "Center" }, |
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88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, |
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1123 | serge | 89 | }; |
90 | |||
5060 | serge | 91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, |
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93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, |
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94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, |
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95 | }; |
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96 | |||
1123 | serge | 97 | /* |
98 | * Non-global properties, but "required" for certain connectors. |
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99 | */ |
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6084 | serge | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
1123 | serge | 101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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104 | }; |
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105 | |||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
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107 | |||
6084 | serge | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
1123 | serge | 109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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112 | }; |
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113 | |||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
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115 | drm_dvi_i_subconnector_enum_list) |
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116 | |||
6084 | serge | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
1123 | serge | 118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 123 | }; |
124 | |||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
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126 | |||
6084 | serge | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
1123 | serge | 128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 133 | }; |
134 | |||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
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136 | drm_tv_subconnector_enum_list) |
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137 | |||
4075 | Serge | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
1321 | serge | 139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, |
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141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, |
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142 | }; |
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143 | |||
1123 | serge | 144 | struct drm_conn_prop_enum_list { |
145 | int type; |
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4075 | Serge | 146 | const char *name; |
4104 | Serge | 147 | struct ida ida; |
1123 | serge | 148 | }; |
149 | |||
150 | /* |
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151 | * Connector and encoder types. |
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152 | */ |
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6084 | serge | 153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
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4104 | Serge | 155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, |
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157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, |
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158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, |
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159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, |
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160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, |
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161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, |
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162 | { DRM_MODE_CONNECTOR_Component, "Component" }, |
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163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, |
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164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, |
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165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, |
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166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, |
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167 | { DRM_MODE_CONNECTOR_TV, "TV" }, |
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168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, |
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169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, |
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4560 | Serge | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
1123 | serge | 171 | }; |
172 | |||
6084 | serge | 173 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
174 | { DRM_MODE_ENCODER_NONE, "None" }, |
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1123 | serge | 175 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
176 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, |
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177 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, |
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178 | { DRM_MODE_ENCODER_TVDAC, "TV" }, |
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3031 | serge | 179 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
4560 | Serge | 180 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
5060 | serge | 181 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
1123 | serge | 182 | }; |
183 | |||
6084 | serge | 184 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
5060 | serge | 185 | { SubPixelUnknown, "Unknown" }, |
186 | { SubPixelHorizontalRGB, "Horizontal RGB" }, |
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187 | { SubPixelHorizontalBGR, "Horizontal BGR" }, |
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188 | { SubPixelVerticalRGB, "Vertical RGB" }, |
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189 | { SubPixelVerticalBGR, "Vertical BGR" }, |
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190 | { SubPixelNone, "None" }, |
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191 | }; |
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192 | |||
4104 | Serge | 193 | void drm_connector_ida_init(void) |
194 | { |
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195 | int i; |
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196 | |||
197 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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198 | ida_init(&drm_connector_enum_list[i].ida); |
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199 | } |
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200 | |||
201 | void drm_connector_ida_destroy(void) |
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202 | { |
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203 | int i; |
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204 | |||
205 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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206 | ida_destroy(&drm_connector_enum_list[i].ida); |
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207 | } |
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208 | |||
5060 | serge | 209 | /** |
210 | * drm_get_connector_status_name - return a string for connector status |
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211 | * @status: connector status to compute name of |
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212 | * |
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213 | * In contrast to the other drm_get_*_name functions this one here returns a |
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214 | * const pointer and hence is threadsafe. |
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215 | */ |
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4075 | Serge | 216 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
1123 | serge | 217 | { |
218 | if (status == connector_status_connected) |
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219 | return "connected"; |
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220 | else if (status == connector_status_disconnected) |
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221 | return "disconnected"; |
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222 | else |
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223 | return "unknown"; |
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224 | } |
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3764 | Serge | 225 | EXPORT_SYMBOL(drm_get_connector_status_name); |
1123 | serge | 226 | |
5060 | serge | 227 | /** |
228 | * drm_get_subpixel_order_name - return a string for a given subpixel enum |
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229 | * @order: enum of subpixel_order |
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230 | * |
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231 | * Note you could abuse this and return something out of bounds, but that |
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232 | * would be a caller error. No unscrubbed user data should make it here. |
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233 | */ |
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234 | const char *drm_get_subpixel_order_name(enum subpixel_order order) |
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235 | { |
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236 | return drm_subpixel_enum_list[order].name; |
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237 | } |
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238 | EXPORT_SYMBOL(drm_get_subpixel_order_name); |
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239 | |||
4075 | Serge | 240 | static char printable_char(int c) |
241 | { |
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242 | return isascii(c) && isprint(c) ? c : '?'; |
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243 | } |
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244 | |||
5060 | serge | 245 | /** |
246 | * drm_get_format_name - return a string for drm fourcc format |
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247 | * @format: format to compute name of |
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248 | * |
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249 | * Note that the buffer used by this function is globally shared and owned by |
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250 | * the function itself. |
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251 | * |
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252 | * FIXME: This isn't really multithreading safe. |
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253 | */ |
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4075 | Serge | 254 | const char *drm_get_format_name(uint32_t format) |
255 | { |
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256 | static char buf[32]; |
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257 | |||
258 | snprintf(buf, sizeof(buf), |
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259 | "%c%c%c%c %s-endian (0x%08x)", |
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260 | printable_char(format & 0xff), |
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261 | printable_char((format >> 8) & 0xff), |
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262 | printable_char((format >> 16) & 0xff), |
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263 | printable_char((format >> 24) & 0x7f), |
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264 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", |
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265 | format); |
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266 | |||
267 | return buf; |
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268 | } |
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269 | EXPORT_SYMBOL(drm_get_format_name); |
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270 | |||
5060 | serge | 271 | /* |
272 | * Internal function to assign a slot in the object idr and optionally |
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273 | * register the object into the idr. |
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1123 | serge | 274 | */ |
5060 | serge | 275 | static int drm_mode_object_get_reg(struct drm_device *dev, |
276 | struct drm_mode_object *obj, |
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277 | uint32_t obj_type, |
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278 | bool register_obj) |
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1123 | serge | 279 | { |
280 | int ret; |
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281 | |||
3480 | Serge | 282 | mutex_lock(&dev->mode_config.idr_mutex); |
5060 | serge | 283 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); |
3480 | Serge | 284 | if (ret >= 0) { |
285 | /* |
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286 | * Set up the object linking under the protection of the idr |
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287 | * lock so that other users can't see inconsistent state. |
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288 | */ |
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289 | obj->id = ret; |
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290 | obj->type = obj_type; |
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1123 | serge | 291 | } |
1179 | serge | 292 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 293 | |
3480 | Serge | 294 | return ret < 0 ? ret : 0; |
1123 | serge | 295 | } |
296 | |||
297 | /** |
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5060 | serge | 298 | * drm_mode_object_get - allocate a new modeset identifier |
299 | * @dev: DRM device |
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300 | * @obj: object pointer, used to generate unique ID |
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301 | * @obj_type: object type |
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302 | * |
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303 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
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304 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
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305 | * modeset identifiers are _not_ reference counted. Hence don't use this for |
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306 | * reference counted modeset objects like framebuffers. |
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307 | * |
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308 | * Returns: |
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6084 | serge | 309 | * Zero on success, error code on failure. |
5060 | serge | 310 | */ |
311 | int drm_mode_object_get(struct drm_device *dev, |
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6084 | serge | 312 | struct drm_mode_object *obj, uint32_t obj_type) |
5060 | serge | 313 | { |
314 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
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315 | } |
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316 | |||
317 | static void drm_mode_object_register(struct drm_device *dev, |
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318 | struct drm_mode_object *obj) |
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319 | { |
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320 | mutex_lock(&dev->mode_config.idr_mutex); |
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321 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
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322 | mutex_unlock(&dev->mode_config.idr_mutex); |
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323 | } |
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324 | |||
325 | /** |
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3480 | Serge | 326 | * drm_mode_object_put - free a modeset identifer |
1123 | serge | 327 | * @dev: DRM device |
3480 | Serge | 328 | * @object: object to free |
1123 | serge | 329 | * |
5060 | serge | 330 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
331 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this |
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332 | * for reference counted modeset objects like framebuffers. |
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1123 | serge | 333 | */ |
5060 | serge | 334 | void drm_mode_object_put(struct drm_device *dev, |
6084 | serge | 335 | struct drm_mode_object *object) |
1123 | serge | 336 | { |
1179 | serge | 337 | mutex_lock(&dev->mode_config.idr_mutex); |
1123 | serge | 338 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
1179 | serge | 339 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 340 | } |
341 | |||
5060 | serge | 342 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
343 | uint32_t id, uint32_t type) |
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344 | { |
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345 | struct drm_mode_object *obj = NULL; |
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346 | |||
347 | mutex_lock(&dev->mode_config.idr_mutex); |
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348 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
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349 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
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350 | obj = NULL; |
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351 | if (obj && obj->id != id) |
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352 | obj = NULL; |
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353 | /* don't leak out unref'd fb's */ |
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6084 | serge | 354 | if (obj && |
355 | (obj->type == DRM_MODE_OBJECT_FB || |
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356 | obj->type == DRM_MODE_OBJECT_BLOB)) |
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5060 | serge | 357 | obj = NULL; |
358 | mutex_unlock(&dev->mode_config.idr_mutex); |
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359 | |||
360 | return obj; |
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361 | } |
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362 | |||
3480 | Serge | 363 | /** |
364 | * drm_mode_object_find - look up a drm object with static lifetime |
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365 | * @dev: drm device |
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366 | * @id: id of the mode object |
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367 | * @type: type of the mode object |
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368 | * |
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369 | * Note that framebuffers cannot be looked up with this functions - since those |
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5060 | serge | 370 | * are reference counted, they need special treatment. Even with |
371 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL |
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372 | * rather than WARN_ON()). |
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3480 | Serge | 373 | */ |
1321 | serge | 374 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
375 | uint32_t id, uint32_t type) |
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1123 | serge | 376 | { |
377 | struct drm_mode_object *obj = NULL; |
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378 | |||
3480 | Serge | 379 | /* Framebuffers are reference counted and need their own lookup |
380 | * function.*/ |
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6084 | serge | 381 | WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); |
5060 | serge | 382 | obj = _object_find(dev, id, type); |
1123 | serge | 383 | return obj; |
384 | } |
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385 | EXPORT_SYMBOL(drm_mode_object_find); |
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386 | |||
387 | /** |
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388 | * drm_framebuffer_init - initialize a framebuffer |
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389 | * @dev: DRM device |
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3480 | Serge | 390 | * @fb: framebuffer to be initialized |
391 | * @funcs: ... with these functions |
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1123 | serge | 392 | * |
393 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
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394 | * functions & device file and adds it to the master fd list. |
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395 | * |
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3480 | Serge | 396 | * IMPORTANT: |
397 | * This functions publishes the fb and makes it available for concurrent access |
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398 | * by other users. Which means by this point the fb _must_ be fully set up - |
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399 | * since all the fb attributes are invariant over its lifetime, no further |
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400 | * locking but only correct reference counting is required. |
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401 | * |
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5060 | serge | 402 | * Returns: |
1321 | serge | 403 | * Zero on success, error code on failure. |
1123 | serge | 404 | */ |
405 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
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406 | const struct drm_framebuffer_funcs *funcs) |
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407 | { |
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408 | int ret; |
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1963 | serge | 409 | |
3480 | Serge | 410 | mutex_lock(&dev->mode_config.fb_lock); |
411 | kref_init(&fb->refcount); |
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412 | INIT_LIST_HEAD(&fb->filp_head); |
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413 | fb->dev = dev; |
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414 | fb->funcs = funcs; |
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415 | |||
1123 | serge | 416 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
3031 | serge | 417 | if (ret) |
3480 | Serge | 418 | goto out; |
1123 | serge | 419 | |
420 | dev->mode_config.num_fb++; |
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421 | list_add(&fb->head, &dev->mode_config.fb_list); |
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3480 | Serge | 422 | out: |
423 | mutex_unlock(&dev->mode_config.fb_lock); |
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1123 | serge | 424 | |
6084 | serge | 425 | return ret; |
1123 | serge | 426 | } |
427 | EXPORT_SYMBOL(drm_framebuffer_init); |
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428 | |||
5271 | serge | 429 | /* dev->mode_config.fb_lock must be held! */ |
430 | static void __drm_framebuffer_unregister(struct drm_device *dev, |
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431 | struct drm_framebuffer *fb) |
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432 | { |
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7144 | serge | 433 | drm_mode_object_put(dev, &fb->base); |
5271 | serge | 434 | |
435 | fb->base.id = 0; |
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436 | } |
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437 | |||
3480 | Serge | 438 | static void drm_framebuffer_free(struct kref *kref) |
439 | { |
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440 | struct drm_framebuffer *fb = |
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441 | container_of(kref, struct drm_framebuffer, refcount); |
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5271 | serge | 442 | struct drm_device *dev = fb->dev; |
443 | |||
444 | /* |
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445 | * The lookup idr holds a weak reference, which has not necessarily been |
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446 | * removed at this point. Check for that. |
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447 | */ |
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448 | mutex_lock(&dev->mode_config.fb_lock); |
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449 | if (fb->base.id) { |
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450 | /* Mark fb as reaped and drop idr ref. */ |
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451 | __drm_framebuffer_unregister(dev, fb); |
||
452 | } |
||
453 | mutex_unlock(&dev->mode_config.fb_lock); |
||
454 | |||
3480 | Serge | 455 | fb->funcs->destroy(fb); |
456 | } |
||
457 | |||
458 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
||
459 | uint32_t id) |
||
460 | { |
||
461 | struct drm_mode_object *obj = NULL; |
||
462 | struct drm_framebuffer *fb; |
||
463 | |||
464 | mutex_lock(&dev->mode_config.idr_mutex); |
||
465 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
||
466 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) |
||
467 | fb = NULL; |
||
468 | else |
||
469 | fb = obj_to_fb(obj); |
||
470 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
471 | |||
472 | return fb; |
||
473 | } |
||
474 | |||
1123 | serge | 475 | /** |
3480 | Serge | 476 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference |
477 | * @dev: drm device |
||
478 | * @id: id of the fb object |
||
479 | * |
||
480 | * If successful, this grabs an additional reference to the framebuffer - |
||
481 | * callers need to make sure to eventually unreference the returned framebuffer |
||
5060 | serge | 482 | * again, using @drm_framebuffer_unreference. |
3480 | Serge | 483 | */ |
484 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, |
||
485 | uint32_t id) |
||
486 | { |
||
487 | struct drm_framebuffer *fb; |
||
488 | |||
489 | mutex_lock(&dev->mode_config.fb_lock); |
||
490 | fb = __drm_framebuffer_lookup(dev, id); |
||
6084 | serge | 491 | if (fb) { |
492 | if (!kref_get_unless_zero(&fb->refcount)) |
||
493 | fb = NULL; |
||
494 | } |
||
3480 | Serge | 495 | mutex_unlock(&dev->mode_config.fb_lock); |
496 | |||
497 | return fb; |
||
498 | } |
||
499 | EXPORT_SYMBOL(drm_framebuffer_lookup); |
||
500 | |||
501 | /** |
||
502 | * drm_framebuffer_unreference - unref a framebuffer |
||
503 | * @fb: framebuffer to unref |
||
504 | * |
||
505 | * This functions decrements the fb's refcount and frees it if it drops to zero. |
||
506 | */ |
||
507 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) |
||
508 | { |
||
5060 | serge | 509 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 510 | kref_put(&fb->refcount, drm_framebuffer_free); |
511 | } |
||
512 | EXPORT_SYMBOL(drm_framebuffer_unreference); |
||
513 | |||
514 | /** |
||
515 | * drm_framebuffer_reference - incr the fb refcnt |
||
516 | * @fb: framebuffer |
||
5060 | serge | 517 | * |
518 | * This functions increments the fb's refcount. |
||
3480 | Serge | 519 | */ |
520 | void drm_framebuffer_reference(struct drm_framebuffer *fb) |
||
521 | { |
||
5060 | serge | 522 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 523 | kref_get(&fb->refcount); |
524 | } |
||
525 | EXPORT_SYMBOL(drm_framebuffer_reference); |
||
526 | |||
527 | /** |
||
528 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr |
||
529 | * @fb: fb to unregister |
||
530 | * |
||
531 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. |
||
532 | * those used for fbdev. Note that the caller must hold a reference of it's own, |
||
533 | * i.e. the object may not be destroyed through this call (since it'll lead to a |
||
534 | * locking inversion). |
||
535 | */ |
||
536 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) |
||
537 | { |
||
6084 | serge | 538 | struct drm_device *dev; |
3480 | Serge | 539 | |
6084 | serge | 540 | if (!fb) |
541 | return; |
||
542 | |||
543 | dev = fb->dev; |
||
544 | |||
3480 | Serge | 545 | mutex_lock(&dev->mode_config.fb_lock); |
546 | /* Mark fb as reaped and drop idr ref. */ |
||
547 | __drm_framebuffer_unregister(dev, fb); |
||
548 | mutex_unlock(&dev->mode_config.fb_lock); |
||
549 | } |
||
550 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); |
||
551 | |||
552 | /** |
||
1123 | serge | 553 | * drm_framebuffer_cleanup - remove a framebuffer object |
554 | * @fb: framebuffer to remove |
||
555 | * |
||
5060 | serge | 556 | * Cleanup framebuffer. This function is intended to be used from the drivers |
557 | * ->destroy callback. It can also be used to clean up driver private |
||
558 | * framebuffers embedded into a larger structure. |
||
1123 | serge | 559 | * |
3480 | Serge | 560 | * Note that this function does not remove the fb from active usuage - if it is |
561 | * still used anywhere, hilarity can ensue since userspace could call getfb on |
||
562 | * the id and get back -EINVAL. Obviously no concern at driver unload time. |
||
563 | * |
||
564 | * Also, the framebuffer will not be removed from the lookup idr - for |
||
565 | * user-created framebuffers this will happen in in the rmfb ioctl. For |
||
566 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call |
||
567 | * drm_framebuffer_unregister_private. |
||
1123 | serge | 568 | */ |
569 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
||
570 | { |
||
571 | struct drm_device *dev = fb->dev; |
||
3480 | Serge | 572 | |
573 | mutex_lock(&dev->mode_config.fb_lock); |
||
1123 | serge | 574 | list_del(&fb->head); |
575 | dev->mode_config.num_fb--; |
||
3480 | Serge | 576 | mutex_unlock(&dev->mode_config.fb_lock); |
1123 | serge | 577 | } |
578 | EXPORT_SYMBOL(drm_framebuffer_cleanup); |
||
579 | |||
3480 | Serge | 580 | /** |
581 | * drm_framebuffer_remove - remove and unreference a framebuffer object |
||
582 | * @fb: framebuffer to remove |
||
583 | * |
||
584 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
||
585 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
||
586 | * passed-in framebuffer. Might take the modeset locks. |
||
587 | * |
||
588 | * Note that this function optimizes the cleanup away if the caller holds the |
||
589 | * last reference to the framebuffer. It is also guaranteed to not take the |
||
590 | * modeset locks in this case. |
||
591 | */ |
||
592 | void drm_framebuffer_remove(struct drm_framebuffer *fb) |
||
593 | { |
||
6084 | serge | 594 | struct drm_device *dev; |
3480 | Serge | 595 | struct drm_crtc *crtc; |
596 | struct drm_plane *plane; |
||
597 | struct drm_mode_set set; |
||
598 | int ret; |
||
3031 | serge | 599 | |
6084 | serge | 600 | if (!fb) |
601 | return; |
||
602 | |||
603 | dev = fb->dev; |
||
604 | |||
3480 | Serge | 605 | WARN_ON(!list_empty(&fb->filp_head)); |
3031 | serge | 606 | |
3480 | Serge | 607 | /* |
608 | * drm ABI mandates that we remove any deleted framebuffers from active |
||
609 | * useage. But since most sane clients only remove framebuffers they no |
||
610 | * longer need, try to optimize this away. |
||
611 | * |
||
612 | * Since we're holding a reference ourselves, observing a refcount of 1 |
||
613 | * means that we're the last holder and can skip it. Also, the refcount |
||
614 | * can never increase from 1 again, so we don't need any barriers or |
||
615 | * locks. |
||
616 | * |
||
617 | * Note that userspace could try to race with use and instate a new |
||
618 | * usage _after_ we've cleared all current ones. End result will be an |
||
619 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot |
||
620 | * in this manner. |
||
621 | */ |
||
622 | if (atomic_read(&fb->refcount.refcount) > 1) { |
||
623 | drm_modeset_lock_all(dev); |
||
624 | /* remove from any CRTC */ |
||
6084 | serge | 625 | drm_for_each_crtc(crtc, dev) { |
5060 | serge | 626 | if (crtc->primary->fb == fb) { |
3480 | Serge | 627 | /* should turn off the crtc */ |
628 | memset(&set, 0, sizeof(struct drm_mode_set)); |
||
629 | set.crtc = crtc; |
||
630 | set.fb = NULL; |
||
631 | ret = drm_mode_set_config_internal(&set); |
||
632 | if (ret) |
||
633 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); |
||
634 | } |
||
635 | } |
||
3031 | serge | 636 | |
6084 | serge | 637 | drm_for_each_plane(plane, dev) { |
4075 | Serge | 638 | if (plane->fb == fb) |
639 | drm_plane_force_disable(plane); |
||
3480 | Serge | 640 | } |
641 | drm_modeset_unlock_all(dev); |
||
642 | } |
||
3031 | serge | 643 | |
3480 | Serge | 644 | drm_framebuffer_unreference(fb); |
645 | } |
||
646 | EXPORT_SYMBOL(drm_framebuffer_remove); |
||
647 | |||
5060 | serge | 648 | DEFINE_WW_CLASS(crtc_ww_class); |
649 | |||
6937 | serge | 650 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
651 | { |
||
652 | unsigned int num = 0; |
||
653 | struct drm_crtc *tmp; |
||
654 | |||
655 | drm_for_each_crtc(tmp, dev) { |
||
656 | num++; |
||
657 | } |
||
658 | |||
659 | return num; |
||
660 | } |
||
661 | |||
1123 | serge | 662 | /** |
5060 | serge | 663 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
664 | * specified primary and cursor planes. |
||
1123 | serge | 665 | * @dev: DRM device |
666 | * @crtc: CRTC object to init |
||
5060 | serge | 667 | * @primary: Primary plane for CRTC |
668 | * @cursor: Cursor plane for CRTC |
||
1123 | serge | 669 | * @funcs: callbacks for the new CRTC |
6937 | serge | 670 | * @name: printf style format string for the CRTC name, or NULL for default name |
1123 | serge | 671 | * |
4075 | Serge | 672 | * Inits a new object created as base part of a driver crtc object. |
3031 | serge | 673 | * |
5060 | serge | 674 | * Returns: |
3031 | serge | 675 | * Zero on success, error code on failure. |
1123 | serge | 676 | */ |
5060 | serge | 677 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
678 | struct drm_plane *primary, |
||
679 | struct drm_plane *cursor, |
||
6937 | serge | 680 | const struct drm_crtc_funcs *funcs, |
681 | const char *name, ...) |
||
1123 | serge | 682 | { |
5060 | serge | 683 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 684 | int ret; |
685 | |||
6084 | serge | 686 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
687 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); |
||
688 | |||
1123 | serge | 689 | crtc->dev = dev; |
690 | crtc->funcs = funcs; |
||
691 | |||
5060 | serge | 692 | drm_modeset_lock_init(&crtc->mutex); |
3031 | serge | 693 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
694 | if (ret) |
||
5271 | serge | 695 | return ret; |
3031 | serge | 696 | |
6937 | serge | 697 | if (name) { |
698 | va_list ap; |
||
699 | |||
700 | va_start(ap, name); |
||
701 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); |
||
702 | va_end(ap); |
||
703 | } else { |
||
704 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", |
||
705 | drm_num_crtcs(dev)); |
||
706 | } |
||
707 | if (!crtc->name) { |
||
708 | drm_mode_object_put(dev, &crtc->base); |
||
709 | return -ENOMEM; |
||
710 | } |
||
711 | |||
3031 | serge | 712 | crtc->base.properties = &crtc->properties; |
713 | |||
5060 | serge | 714 | list_add_tail(&crtc->head, &config->crtc_list); |
715 | config->num_crtc++; |
||
3031 | serge | 716 | |
5060 | serge | 717 | crtc->primary = primary; |
718 | crtc->cursor = cursor; |
||
719 | if (primary) |
||
720 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
721 | if (cursor) |
||
722 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
723 | |||
6084 | serge | 724 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
725 | drm_object_attach_property(&crtc->base, config->prop_active, 0); |
||
726 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
||
727 | } |
||
728 | |||
5271 | serge | 729 | return 0; |
1123 | serge | 730 | } |
5060 | serge | 731 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
1123 | serge | 732 | |
733 | /** |
||
4075 | Serge | 734 | * drm_crtc_cleanup - Clean up the core crtc usage |
1123 | serge | 735 | * @crtc: CRTC to cleanup |
736 | * |
||
4075 | Serge | 737 | * This function cleans up @crtc and removes it from the DRM mode setting |
738 | * core. Note that the function does *not* free the crtc structure itself, |
||
739 | * this is the responsibility of the caller. |
||
1123 | serge | 740 | */ |
741 | void drm_crtc_cleanup(struct drm_crtc *crtc) |
||
742 | { |
||
743 | struct drm_device *dev = crtc->dev; |
||
744 | |||
6084 | serge | 745 | kfree(crtc->gamma_store); |
746 | crtc->gamma_store = NULL; |
||
1123 | serge | 747 | |
5060 | serge | 748 | drm_modeset_lock_fini(&crtc->mutex); |
749 | |||
1123 | serge | 750 | drm_mode_object_put(dev, &crtc->base); |
751 | list_del(&crtc->head); |
||
752 | dev->mode_config.num_crtc--; |
||
5271 | serge | 753 | |
754 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); |
||
755 | if (crtc->state && crtc->funcs->atomic_destroy_state) |
||
756 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); |
||
757 | |||
6937 | serge | 758 | kfree(crtc->name); |
759 | |||
5271 | serge | 760 | memset(crtc, 0, sizeof(*crtc)); |
1123 | serge | 761 | } |
762 | EXPORT_SYMBOL(drm_crtc_cleanup); |
||
763 | |||
764 | /** |
||
4560 | Serge | 765 | * drm_crtc_index - find the index of a registered CRTC |
766 | * @crtc: CRTC to find index for |
||
767 | * |
||
768 | * Given a registered CRTC, return the index of that CRTC within a DRM |
||
769 | * device's list of CRTCs. |
||
770 | */ |
||
771 | unsigned int drm_crtc_index(struct drm_crtc *crtc) |
||
772 | { |
||
773 | unsigned int index = 0; |
||
774 | struct drm_crtc *tmp; |
||
775 | |||
6084 | serge | 776 | drm_for_each_crtc(tmp, crtc->dev) { |
4560 | Serge | 777 | if (tmp == crtc) |
778 | return index; |
||
779 | |||
780 | index++; |
||
781 | } |
||
782 | |||
783 | BUG(); |
||
784 | } |
||
785 | EXPORT_SYMBOL(drm_crtc_index); |
||
786 | |||
4104 | Serge | 787 | /* |
1123 | serge | 788 | * drm_mode_remove - remove and free a mode |
789 | * @connector: connector list to modify |
||
790 | * @mode: mode to remove |
||
791 | * |
||
792 | * Remove @mode from @connector's mode list, then free it. |
||
793 | */ |
||
4104 | Serge | 794 | static void drm_mode_remove(struct drm_connector *connector, |
6084 | serge | 795 | struct drm_display_mode *mode) |
1123 | serge | 796 | { |
797 | list_del(&mode->head); |
||
3031 | serge | 798 | drm_mode_destroy(connector->dev, mode); |
1123 | serge | 799 | } |
800 | |||
801 | /** |
||
6084 | serge | 802 | * drm_display_info_set_bus_formats - set the supported bus formats |
803 | * @info: display info to store bus formats in |
||
804 | * @formats: array containing the supported bus formats |
||
805 | * @num_formats: the number of entries in the fmts array |
||
806 | * |
||
807 | * Store the supported bus formats in display info structure. |
||
808 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for |
||
809 | * a full list of available formats. |
||
810 | */ |
||
811 | int drm_display_info_set_bus_formats(struct drm_display_info *info, |
||
812 | const u32 *formats, |
||
813 | unsigned int num_formats) |
||
814 | { |
||
815 | u32 *fmts = NULL; |
||
816 | |||
817 | if (!formats && num_formats) |
||
818 | return -EINVAL; |
||
819 | |||
820 | if (formats && num_formats) { |
||
821 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, |
||
822 | GFP_KERNEL); |
||
823 | if (!fmts) |
||
824 | return -ENOMEM; |
||
825 | } |
||
826 | |||
827 | kfree(info->bus_formats); |
||
828 | info->bus_formats = fmts; |
||
829 | info->num_bus_formats = num_formats; |
||
830 | |||
831 | return 0; |
||
832 | } |
||
833 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); |
||
834 | |||
835 | /** |
||
836 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode |
||
837 | * @connector: connector to quwery |
||
838 | * |
||
839 | * The kernel supports per-connector configration of its consoles through |
||
840 | * use of the video= parameter. This function parses that option and |
||
841 | * extracts the user's specified mode (or enable/disable status) for a |
||
842 | * particular connector. This is typically only used during the early fbdev |
||
843 | * setup. |
||
844 | */ |
||
845 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) |
||
846 | { |
||
847 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; |
||
848 | char *option = NULL; |
||
849 | |||
850 | if (fb_get_options(connector->name, &option)) |
||
851 | return; |
||
852 | |||
853 | if (!drm_mode_parse_command_line_for_connector(option, |
||
854 | connector, |
||
855 | mode)) |
||
856 | return; |
||
857 | |||
858 | if (mode->force) { |
||
859 | const char *s; |
||
860 | |||
861 | switch (mode->force) { |
||
862 | case DRM_FORCE_OFF: |
||
863 | s = "OFF"; |
||
864 | break; |
||
865 | case DRM_FORCE_ON_DIGITAL: |
||
866 | s = "ON - dig"; |
||
867 | break; |
||
868 | default: |
||
869 | case DRM_FORCE_ON: |
||
870 | s = "ON"; |
||
871 | break; |
||
872 | } |
||
873 | |||
874 | DRM_INFO("forcing %s connector %s\n", connector->name, s); |
||
875 | connector->force = mode->force; |
||
876 | } |
||
877 | |||
878 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", |
||
879 | connector->name, |
||
880 | mode->xres, mode->yres, |
||
881 | mode->refresh_specified ? mode->refresh : 60, |
||
882 | mode->rb ? " reduced blanking" : "", |
||
883 | mode->margins ? " with margins" : "", |
||
884 | mode->interlace ? " interlaced" : ""); |
||
885 | } |
||
886 | |||
887 | /** |
||
1123 | serge | 888 | * drm_connector_init - Init a preallocated connector |
889 | * @dev: DRM device |
||
890 | * @connector: the connector to init |
||
891 | * @funcs: callbacks for this connector |
||
3480 | Serge | 892 | * @connector_type: user visible type of the connector |
1123 | serge | 893 | * |
894 | * Initialises a preallocated connector. Connectors should be |
||
895 | * subclassed as part of driver connector objects. |
||
3031 | serge | 896 | * |
5060 | serge | 897 | * Returns: |
3031 | serge | 898 | * Zero on success, error code on failure. |
1123 | serge | 899 | */ |
3031 | serge | 900 | int drm_connector_init(struct drm_device *dev, |
6084 | serge | 901 | struct drm_connector *connector, |
902 | const struct drm_connector_funcs *funcs, |
||
903 | int connector_type) |
||
1123 | serge | 904 | { |
6084 | serge | 905 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 906 | int ret; |
4104 | Serge | 907 | struct ida *connector_ida = |
908 | &drm_connector_enum_list[connector_type].ida; |
||
3031 | serge | 909 | |
3480 | Serge | 910 | drm_modeset_lock_all(dev); |
1123 | serge | 911 | |
5060 | serge | 912 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
3031 | serge | 913 | if (ret) |
5060 | serge | 914 | goto out_unlock; |
3031 | serge | 915 | |
916 | connector->base.properties = &connector->properties; |
||
1123 | serge | 917 | connector->dev = dev; |
918 | connector->funcs = funcs; |
||
6937 | serge | 919 | |
920 | connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); |
||
921 | if (connector->connector_id < 0) { |
||
922 | ret = connector->connector_id; |
||
923 | goto out_put; |
||
924 | } |
||
925 | |||
1123 | serge | 926 | connector->connector_type = connector_type; |
927 | connector->connector_type_id = |
||
4104 | Serge | 928 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
929 | if (connector->connector_type_id < 0) { |
||
930 | ret = connector->connector_type_id; |
||
6937 | serge | 931 | goto out_put_id; |
4104 | Serge | 932 | } |
5060 | serge | 933 | connector->name = |
934 | kasprintf(GFP_KERNEL, "%s-%d", |
||
935 | drm_connector_enum_list[connector_type].name, |
||
936 | connector->connector_type_id); |
||
937 | if (!connector->name) { |
||
938 | ret = -ENOMEM; |
||
6937 | serge | 939 | goto out_put_type_id; |
5060 | serge | 940 | } |
941 | |||
1123 | serge | 942 | INIT_LIST_HEAD(&connector->probed_modes); |
943 | INIT_LIST_HEAD(&connector->modes); |
||
944 | connector->edid_blob_ptr = NULL; |
||
3192 | Serge | 945 | connector->status = connector_status_unknown; |
1123 | serge | 946 | |
6084 | serge | 947 | drm_connector_get_cmdline_mode(connector); |
1123 | serge | 948 | |
6084 | serge | 949 | /* We should add connectors at the end to avoid upsetting the connector |
950 | * index too much. */ |
||
951 | list_add_tail(&connector->head, &config->connector_list); |
||
952 | config->num_connector++; |
||
953 | |||
3031 | serge | 954 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
3192 | Serge | 955 | drm_object_attach_property(&connector->base, |
6084 | serge | 956 | config->edid_property, |
3031 | serge | 957 | 0); |
1123 | serge | 958 | |
3192 | Serge | 959 | drm_object_attach_property(&connector->base, |
6084 | serge | 960 | config->dpms_property, 0); |
1123 | serge | 961 | |
6084 | serge | 962 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
963 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); |
||
964 | } |
||
965 | |||
5060 | serge | 966 | connector->debugfs_entry = NULL; |
6937 | serge | 967 | out_put_type_id: |
968 | if (ret) |
||
969 | ida_remove(connector_ida, connector->connector_type_id); |
||
970 | out_put_id: |
||
971 | if (ret) |
||
972 | ida_remove(&config->connector_ida, connector->connector_id); |
||
5060 | serge | 973 | out_put: |
974 | if (ret) |
||
975 | drm_mode_object_put(dev, &connector->base); |
||
976 | |||
977 | out_unlock: |
||
3480 | Serge | 978 | drm_modeset_unlock_all(dev); |
3031 | serge | 979 | |
980 | return ret; |
||
1123 | serge | 981 | } |
982 | EXPORT_SYMBOL(drm_connector_init); |
||
983 | |||
984 | /** |
||
985 | * drm_connector_cleanup - cleans up an initialised connector |
||
986 | * @connector: connector to cleanup |
||
987 | * |
||
988 | * Cleans up the connector but doesn't free the object. |
||
989 | */ |
||
990 | void drm_connector_cleanup(struct drm_connector *connector) |
||
991 | { |
||
992 | struct drm_device *dev = connector->dev; |
||
993 | struct drm_display_mode *mode, *t; |
||
994 | |||
6084 | serge | 995 | if (connector->tile_group) { |
996 | drm_mode_put_tile_group(dev, connector->tile_group); |
||
997 | connector->tile_group = NULL; |
||
998 | } |
||
999 | |||
1123 | serge | 1000 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
1001 | drm_mode_remove(connector, mode); |
||
1002 | |||
1003 | list_for_each_entry_safe(mode, t, &connector->modes, head) |
||
1004 | drm_mode_remove(connector, mode); |
||
1005 | |||
4104 | Serge | 1006 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
1007 | connector->connector_type_id); |
||
1008 | |||
6937 | serge | 1009 | ida_remove(&dev->mode_config.connector_ida, |
1010 | connector->connector_id); |
||
1011 | |||
6084 | serge | 1012 | kfree(connector->display_info.bus_formats); |
1123 | serge | 1013 | drm_mode_object_put(dev, &connector->base); |
5060 | serge | 1014 | kfree(connector->name); |
1015 | connector->name = NULL; |
||
1123 | serge | 1016 | list_del(&connector->head); |
2160 | serge | 1017 | dev->mode_config.num_connector--; |
5271 | serge | 1018 | |
1019 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); |
||
1020 | if (connector->state && connector->funcs->atomic_destroy_state) |
||
1021 | connector->funcs->atomic_destroy_state(connector, |
||
1022 | connector->state); |
||
1023 | |||
1024 | memset(connector, 0, sizeof(*connector)); |
||
1123 | serge | 1025 | } |
1026 | EXPORT_SYMBOL(drm_connector_cleanup); |
||
1027 | |||
5060 | serge | 1028 | /** |
1029 | * drm_connector_register - register a connector |
||
1030 | * @connector: the connector to register |
||
1031 | * |
||
1032 | * Register userspace interfaces for a connector |
||
1033 | * |
||
1034 | * Returns: |
||
1035 | * Zero on success, error code on failure. |
||
1036 | */ |
||
1037 | int drm_connector_register(struct drm_connector *connector) |
||
1038 | { |
||
1039 | int ret; |
||
1040 | |||
1041 | drm_mode_object_register(connector->dev, &connector->base); |
||
1042 | |||
6084 | serge | 1043 | ret = drm_sysfs_connector_add(connector); |
1044 | if (ret) |
||
1045 | return ret; |
||
6296 | serge | 1046 | |
1047 | ret = drm_debugfs_connector_add(connector); |
||
1048 | if (ret) { |
||
1049 | drm_sysfs_connector_remove(connector); |
||
1050 | return ret; |
||
1051 | } |
||
1052 | |||
5060 | serge | 1053 | return 0; |
1054 | } |
||
1055 | EXPORT_SYMBOL(drm_connector_register); |
||
1056 | |||
1057 | /** |
||
1058 | * drm_connector_unregister - unregister a connector |
||
1059 | * @connector: the connector to unregister |
||
1060 | * |
||
1061 | * Unregister userspace interfaces for a connector |
||
1062 | */ |
||
1063 | void drm_connector_unregister(struct drm_connector *connector) |
||
1064 | { |
||
6084 | serge | 1065 | drm_sysfs_connector_remove(connector); |
6296 | serge | 1066 | drm_debugfs_connector_remove(connector); |
5060 | serge | 1067 | } |
1068 | EXPORT_SYMBOL(drm_connector_unregister); |
||
1069 | |||
1070 | |||
1071 | /** |
||
1072 | * drm_connector_unplug_all - unregister connector userspace interfaces |
||
1073 | * @dev: drm device |
||
1074 | * |
||
1075 | * This function unregisters all connector userspace interfaces in sysfs. Should |
||
1076 | * be call when the device is disconnected, e.g. from an usb driver's |
||
1077 | * ->disconnect callback. |
||
1078 | */ |
||
3031 | serge | 1079 | void drm_connector_unplug_all(struct drm_device *dev) |
1080 | { |
||
1081 | struct drm_connector *connector; |
||
1082 | |||
6084 | serge | 1083 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
5060 | serge | 1084 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
1085 | drm_connector_unregister(connector); |
||
3031 | serge | 1086 | |
1087 | } |
||
1088 | EXPORT_SYMBOL(drm_connector_unplug_all); |
||
1089 | |||
5060 | serge | 1090 | /** |
1091 | * drm_encoder_init - Init a preallocated encoder |
||
1092 | * @dev: drm device |
||
1093 | * @encoder: the encoder to init |
||
1094 | * @funcs: callbacks for this encoder |
||
1095 | * @encoder_type: user visible type of the encoder |
||
6937 | serge | 1096 | * @name: printf style format string for the encoder name, or NULL for default name |
5060 | serge | 1097 | * |
1098 | * Initialises a preallocated encoder. Encoder should be |
||
1099 | * subclassed as part of driver encoder objects. |
||
1100 | * |
||
1101 | * Returns: |
||
1102 | * Zero on success, error code on failure. |
||
1103 | */ |
||
3031 | serge | 1104 | int drm_encoder_init(struct drm_device *dev, |
1123 | serge | 1105 | struct drm_encoder *encoder, |
1106 | const struct drm_encoder_funcs *funcs, |
||
6937 | serge | 1107 | int encoder_type, const char *name, ...) |
1123 | serge | 1108 | { |
3031 | serge | 1109 | int ret; |
1110 | |||
3480 | Serge | 1111 | drm_modeset_lock_all(dev); |
1123 | serge | 1112 | |
3031 | serge | 1113 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1114 | if (ret) |
||
5060 | serge | 1115 | goto out_unlock; |
3031 | serge | 1116 | |
1123 | serge | 1117 | encoder->dev = dev; |
1118 | encoder->encoder_type = encoder_type; |
||
1119 | encoder->funcs = funcs; |
||
6937 | serge | 1120 | if (name) { |
1121 | va_list ap; |
||
1122 | |||
1123 | va_start(ap, name); |
||
1124 | encoder->name = kvasprintf(GFP_KERNEL, name, ap); |
||
1125 | va_end(ap); |
||
1126 | } else { |
||
7144 | serge | 1127 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1128 | drm_encoder_enum_list[encoder_type].name, |
||
1129 | encoder->base.id); |
||
6937 | serge | 1130 | } |
5060 | serge | 1131 | if (!encoder->name) { |
1132 | ret = -ENOMEM; |
||
1133 | goto out_put; |
||
1134 | } |
||
1123 | serge | 1135 | |
1136 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
||
1137 | dev->mode_config.num_encoder++; |
||
1138 | |||
5060 | serge | 1139 | out_put: |
1140 | if (ret) |
||
1141 | drm_mode_object_put(dev, &encoder->base); |
||
1142 | |||
1143 | out_unlock: |
||
3480 | Serge | 1144 | drm_modeset_unlock_all(dev); |
3031 | serge | 1145 | |
1146 | return ret; |
||
1123 | serge | 1147 | } |
1148 | EXPORT_SYMBOL(drm_encoder_init); |
||
1149 | |||
5060 | serge | 1150 | /** |
7144 | serge | 1151 | * drm_encoder_index - find the index of a registered encoder |
1152 | * @encoder: encoder to find index for |
||
1153 | * |
||
1154 | * Given a registered encoder, return the index of that encoder within a DRM |
||
1155 | * device's list of encoders. |
||
1156 | */ |
||
1157 | unsigned int drm_encoder_index(struct drm_encoder *encoder) |
||
1158 | { |
||
1159 | unsigned int index = 0; |
||
1160 | struct drm_encoder *tmp; |
||
1161 | |||
1162 | drm_for_each_encoder(tmp, encoder->dev) { |
||
1163 | if (tmp == encoder) |
||
1164 | return index; |
||
1165 | |||
1166 | index++; |
||
1167 | } |
||
1168 | |||
1169 | BUG(); |
||
1170 | } |
||
1171 | EXPORT_SYMBOL(drm_encoder_index); |
||
1172 | |||
1173 | /** |
||
5060 | serge | 1174 | * drm_encoder_cleanup - cleans up an initialised encoder |
1175 | * @encoder: encoder to cleanup |
||
1176 | * |
||
1177 | * Cleans up the encoder but doesn't free the object. |
||
1178 | */ |
||
1123 | serge | 1179 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1180 | { |
||
1181 | struct drm_device *dev = encoder->dev; |
||
6084 | serge | 1182 | |
3480 | Serge | 1183 | drm_modeset_lock_all(dev); |
1123 | serge | 1184 | drm_mode_object_put(dev, &encoder->base); |
5060 | serge | 1185 | kfree(encoder->name); |
1123 | serge | 1186 | list_del(&encoder->head); |
2160 | serge | 1187 | dev->mode_config.num_encoder--; |
3480 | Serge | 1188 | drm_modeset_unlock_all(dev); |
5271 | serge | 1189 | |
1190 | memset(encoder, 0, sizeof(*encoder)); |
||
1123 | serge | 1191 | } |
1192 | EXPORT_SYMBOL(drm_encoder_cleanup); |
||
1193 | |||
6937 | serge | 1194 | static unsigned int drm_num_planes(struct drm_device *dev) |
1195 | { |
||
1196 | unsigned int num = 0; |
||
1197 | struct drm_plane *tmp; |
||
1198 | |||
1199 | drm_for_each_plane(tmp, dev) { |
||
1200 | num++; |
||
1201 | } |
||
1202 | |||
1203 | return num; |
||
1204 | } |
||
1205 | |||
4075 | Serge | 1206 | /** |
5060 | serge | 1207 | * drm_universal_plane_init - Initialize a new universal plane object |
4075 | Serge | 1208 | * @dev: DRM device |
1209 | * @plane: plane object to init |
||
1210 | * @possible_crtcs: bitmask of possible CRTCs |
||
1211 | * @funcs: callbacks for the new plane |
||
1212 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1213 | * @format_count: number of elements in @formats |
||
5060 | serge | 1214 | * @type: type of plane (overlay, primary, cursor) |
6937 | serge | 1215 | * @name: printf style format string for the plane name, or NULL for default name |
4075 | Serge | 1216 | * |
5060 | serge | 1217 | * Initializes a plane object of type @type. |
4075 | Serge | 1218 | * |
5060 | serge | 1219 | * Returns: |
4075 | Serge | 1220 | * Zero on success, error code on failure. |
1221 | */ |
||
5060 | serge | 1222 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
6084 | serge | 1223 | unsigned long possible_crtcs, |
1224 | const struct drm_plane_funcs *funcs, |
||
1225 | const uint32_t *formats, unsigned int format_count, |
||
6937 | serge | 1226 | enum drm_plane_type type, |
1227 | const char *name, ...) |
||
3031 | serge | 1228 | { |
6084 | serge | 1229 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 1230 | int ret; |
1231 | |||
1232 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
||
1233 | if (ret) |
||
5271 | serge | 1234 | return ret; |
3031 | serge | 1235 | |
5271 | serge | 1236 | drm_modeset_lock_init(&plane->mutex); |
1237 | |||
3031 | serge | 1238 | plane->base.properties = &plane->properties; |
1239 | plane->dev = dev; |
||
1240 | plane->funcs = funcs; |
||
6084 | serge | 1241 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1242 | GFP_KERNEL); |
||
3031 | serge | 1243 | if (!plane->format_types) { |
1244 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); |
||
1245 | drm_mode_object_put(dev, &plane->base); |
||
5271 | serge | 1246 | return -ENOMEM; |
3031 | serge | 1247 | } |
1248 | |||
6937 | serge | 1249 | if (name) { |
1250 | va_list ap; |
||
1251 | |||
1252 | va_start(ap, name); |
||
1253 | plane->name = kvasprintf(GFP_KERNEL, name, ap); |
||
1254 | va_end(ap); |
||
1255 | } else { |
||
1256 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", |
||
1257 | drm_num_planes(dev)); |
||
1258 | } |
||
1259 | if (!plane->name) { |
||
1260 | kfree(plane->format_types); |
||
1261 | drm_mode_object_put(dev, &plane->base); |
||
1262 | return -ENOMEM; |
||
1263 | } |
||
1264 | |||
3031 | serge | 1265 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
1266 | plane->format_count = format_count; |
||
1267 | plane->possible_crtcs = possible_crtcs; |
||
5060 | serge | 1268 | plane->type = type; |
3031 | serge | 1269 | |
6084 | serge | 1270 | list_add_tail(&plane->head, &config->plane_list); |
1271 | config->num_total_plane++; |
||
5060 | serge | 1272 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6084 | serge | 1273 | config->num_overlay_plane++; |
3031 | serge | 1274 | |
5060 | serge | 1275 | drm_object_attach_property(&plane->base, |
6084 | serge | 1276 | config->plane_type_property, |
5060 | serge | 1277 | plane->type); |
1278 | |||
6084 | serge | 1279 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1280 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); |
||
1281 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); |
||
1282 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); |
||
1283 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); |
||
1284 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); |
||
1285 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); |
||
1286 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); |
||
1287 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); |
||
1288 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); |
||
1289 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); |
||
1290 | } |
||
1291 | |||
5271 | serge | 1292 | return 0; |
3031 | serge | 1293 | } |
5060 | serge | 1294 | EXPORT_SYMBOL(drm_universal_plane_init); |
1295 | |||
1296 | /** |
||
1297 | * drm_plane_init - Initialize a legacy plane |
||
1298 | * @dev: DRM device |
||
1299 | * @plane: plane object to init |
||
1300 | * @possible_crtcs: bitmask of possible CRTCs |
||
1301 | * @funcs: callbacks for the new plane |
||
1302 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1303 | * @format_count: number of elements in @formats |
||
1304 | * @is_primary: plane type (primary vs overlay) |
||
1305 | * |
||
1306 | * Legacy API to initialize a DRM plane. |
||
1307 | * |
||
1308 | * New drivers should call drm_universal_plane_init() instead. |
||
1309 | * |
||
1310 | * Returns: |
||
1311 | * Zero on success, error code on failure. |
||
1312 | */ |
||
1313 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
||
1314 | unsigned long possible_crtcs, |
||
1315 | const struct drm_plane_funcs *funcs, |
||
6084 | serge | 1316 | const uint32_t *formats, unsigned int format_count, |
5060 | serge | 1317 | bool is_primary) |
1318 | { |
||
1319 | enum drm_plane_type type; |
||
1320 | |||
1321 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; |
||
1322 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, |
||
6937 | serge | 1323 | formats, format_count, type, NULL); |
5060 | serge | 1324 | } |
3031 | serge | 1325 | EXPORT_SYMBOL(drm_plane_init); |
1326 | |||
4075 | Serge | 1327 | /** |
1328 | * drm_plane_cleanup - Clean up the core plane usage |
||
1329 | * @plane: plane to cleanup |
||
1330 | * |
||
1331 | * This function cleans up @plane and removes it from the DRM mode setting |
||
1332 | * core. Note that the function does *not* free the plane structure itself, |
||
1333 | * this is the responsibility of the caller. |
||
1334 | */ |
||
3031 | serge | 1335 | void drm_plane_cleanup(struct drm_plane *plane) |
1336 | { |
||
1337 | struct drm_device *dev = plane->dev; |
||
1338 | |||
3480 | Serge | 1339 | drm_modeset_lock_all(dev); |
3031 | serge | 1340 | kfree(plane->format_types); |
1341 | drm_mode_object_put(dev, &plane->base); |
||
5060 | serge | 1342 | |
1343 | BUG_ON(list_empty(&plane->head)); |
||
1344 | |||
6084 | serge | 1345 | list_del(&plane->head); |
5060 | serge | 1346 | dev->mode_config.num_total_plane--; |
1347 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
||
1348 | dev->mode_config.num_overlay_plane--; |
||
3480 | Serge | 1349 | drm_modeset_unlock_all(dev); |
5271 | serge | 1350 | |
1351 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); |
||
1352 | if (plane->state && plane->funcs->atomic_destroy_state) |
||
1353 | plane->funcs->atomic_destroy_state(plane, plane->state); |
||
1354 | |||
6937 | serge | 1355 | kfree(plane->name); |
1356 | |||
5271 | serge | 1357 | memset(plane, 0, sizeof(*plane)); |
3031 | serge | 1358 | } |
1359 | EXPORT_SYMBOL(drm_plane_cleanup); |
||
1360 | |||
1123 | serge | 1361 | /** |
5271 | serge | 1362 | * drm_plane_index - find the index of a registered plane |
1363 | * @plane: plane to find index for |
||
1364 | * |
||
1365 | * Given a registered plane, return the index of that CRTC within a DRM |
||
1366 | * device's list of planes. |
||
1367 | */ |
||
1368 | unsigned int drm_plane_index(struct drm_plane *plane) |
||
1369 | { |
||
1370 | unsigned int index = 0; |
||
1371 | struct drm_plane *tmp; |
||
1372 | |||
6084 | serge | 1373 | drm_for_each_plane(tmp, plane->dev) { |
5271 | serge | 1374 | if (tmp == plane) |
1375 | return index; |
||
1376 | |||
1377 | index++; |
||
1378 | } |
||
1379 | |||
1380 | BUG(); |
||
1381 | } |
||
1382 | EXPORT_SYMBOL(drm_plane_index); |
||
1383 | |||
1384 | /** |
||
6084 | serge | 1385 | * drm_plane_from_index - find the registered plane at an index |
1386 | * @dev: DRM device |
||
1387 | * @idx: index of registered plane to find for |
||
1388 | * |
||
1389 | * Given a plane index, return the registered plane from DRM device's |
||
1390 | * list of planes with matching index. |
||
1391 | */ |
||
1392 | struct drm_plane * |
||
1393 | drm_plane_from_index(struct drm_device *dev, int idx) |
||
1394 | { |
||
1395 | struct drm_plane *plane; |
||
1396 | unsigned int i = 0; |
||
1397 | |||
1398 | drm_for_each_plane(plane, dev) { |
||
1399 | if (i == idx) |
||
1400 | return plane; |
||
1401 | i++; |
||
1402 | } |
||
1403 | return NULL; |
||
1404 | } |
||
1405 | EXPORT_SYMBOL(drm_plane_from_index); |
||
1406 | |||
1407 | /** |
||
4075 | Serge | 1408 | * drm_plane_force_disable - Forcibly disable a plane |
1409 | * @plane: plane to disable |
||
1410 | * |
||
1411 | * Forces the plane to be disabled. |
||
1412 | * |
||
1413 | * Used when the plane's current framebuffer is destroyed, |
||
1414 | * and when restoring fbdev mode. |
||
1415 | */ |
||
1416 | void drm_plane_force_disable(struct drm_plane *plane) |
||
1417 | { |
||
1418 | int ret; |
||
1419 | |||
5271 | serge | 1420 | if (!plane->fb) |
4075 | Serge | 1421 | return; |
1422 | |||
5271 | serge | 1423 | plane->old_fb = plane->fb; |
4075 | Serge | 1424 | ret = plane->funcs->disable_plane(plane); |
5060 | serge | 1425 | if (ret) { |
4075 | Serge | 1426 | DRM_ERROR("failed to disable plane with busy fb\n"); |
5271 | serge | 1427 | plane->old_fb = NULL; |
5060 | serge | 1428 | return; |
1429 | } |
||
4075 | Serge | 1430 | /* disconnect the plane from the fb and crtc: */ |
6084 | serge | 1431 | drm_framebuffer_unreference(plane->old_fb); |
5271 | serge | 1432 | plane->old_fb = NULL; |
4075 | Serge | 1433 | plane->fb = NULL; |
1434 | plane->crtc = NULL; |
||
1435 | } |
||
1436 | EXPORT_SYMBOL(drm_plane_force_disable); |
||
1437 | |||
6084 | serge | 1438 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
1123 | serge | 1439 | { |
6084 | serge | 1440 | struct drm_property *prop; |
1123 | serge | 1441 | |
1442 | /* |
||
1443 | * Standard properties (apply to all connectors) |
||
1444 | */ |
||
6084 | serge | 1445 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
1123 | serge | 1446 | DRM_MODE_PROP_IMMUTABLE, |
1447 | "EDID", 0); |
||
6084 | serge | 1448 | if (!prop) |
1449 | return -ENOMEM; |
||
1450 | dev->mode_config.edid_property = prop; |
||
1123 | serge | 1451 | |
6084 | serge | 1452 | prop = drm_property_create_enum(dev, 0, |
3031 | serge | 1453 | "DPMS", drm_dpms_enum_list, |
1454 | ARRAY_SIZE(drm_dpms_enum_list)); |
||
6084 | serge | 1455 | if (!prop) |
1456 | return -ENOMEM; |
||
1457 | dev->mode_config.dpms_property = prop; |
||
1123 | serge | 1458 | |
6084 | serge | 1459 | prop = drm_property_create(dev, |
1460 | DRM_MODE_PROP_BLOB | |
||
1461 | DRM_MODE_PROP_IMMUTABLE, |
||
1462 | "PATH", 0); |
||
1463 | if (!prop) |
||
1464 | return -ENOMEM; |
||
1465 | dev->mode_config.path_property = prop; |
||
5060 | serge | 1466 | |
6084 | serge | 1467 | prop = drm_property_create(dev, |
1468 | DRM_MODE_PROP_BLOB | |
||
1469 | DRM_MODE_PROP_IMMUTABLE, |
||
1470 | "TILE", 0); |
||
1471 | if (!prop) |
||
1472 | return -ENOMEM; |
||
1473 | dev->mode_config.tile_property = prop; |
||
5271 | serge | 1474 | |
6084 | serge | 1475 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
5060 | serge | 1476 | "type", drm_plane_type_enum_list, |
1477 | ARRAY_SIZE(drm_plane_type_enum_list)); |
||
6084 | serge | 1478 | if (!prop) |
1479 | return -ENOMEM; |
||
1480 | dev->mode_config.plane_type_property = prop; |
||
5060 | serge | 1481 | |
6084 | serge | 1482 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
1483 | "SRC_X", 0, UINT_MAX); |
||
1484 | if (!prop) |
||
1485 | return -ENOMEM; |
||
1486 | dev->mode_config.prop_src_x = prop; |
||
1487 | |||
1488 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1489 | "SRC_Y", 0, UINT_MAX); |
||
1490 | if (!prop) |
||
1491 | return -ENOMEM; |
||
1492 | dev->mode_config.prop_src_y = prop; |
||
1493 | |||
1494 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1495 | "SRC_W", 0, UINT_MAX); |
||
1496 | if (!prop) |
||
1497 | return -ENOMEM; |
||
1498 | dev->mode_config.prop_src_w = prop; |
||
1499 | |||
1500 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1501 | "SRC_H", 0, UINT_MAX); |
||
1502 | if (!prop) |
||
1503 | return -ENOMEM; |
||
1504 | dev->mode_config.prop_src_h = prop; |
||
1505 | |||
1506 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1507 | "CRTC_X", INT_MIN, INT_MAX); |
||
1508 | if (!prop) |
||
1509 | return -ENOMEM; |
||
1510 | dev->mode_config.prop_crtc_x = prop; |
||
1511 | |||
1512 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1513 | "CRTC_Y", INT_MIN, INT_MAX); |
||
1514 | if (!prop) |
||
1515 | return -ENOMEM; |
||
1516 | dev->mode_config.prop_crtc_y = prop; |
||
1517 | |||
1518 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1519 | "CRTC_W", 0, INT_MAX); |
||
1520 | if (!prop) |
||
1521 | return -ENOMEM; |
||
1522 | dev->mode_config.prop_crtc_w = prop; |
||
1523 | |||
1524 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1525 | "CRTC_H", 0, INT_MAX); |
||
1526 | if (!prop) |
||
1527 | return -ENOMEM; |
||
1528 | dev->mode_config.prop_crtc_h = prop; |
||
1529 | |||
1530 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
||
1531 | "FB_ID", DRM_MODE_OBJECT_FB); |
||
1532 | if (!prop) |
||
1533 | return -ENOMEM; |
||
1534 | dev->mode_config.prop_fb_id = prop; |
||
1535 | |||
1536 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
||
1537 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); |
||
1538 | if (!prop) |
||
1539 | return -ENOMEM; |
||
1540 | dev->mode_config.prop_crtc_id = prop; |
||
1541 | |||
1542 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
||
1543 | "ACTIVE"); |
||
1544 | if (!prop) |
||
1545 | return -ENOMEM; |
||
1546 | dev->mode_config.prop_active = prop; |
||
1547 | |||
1548 | prop = drm_property_create(dev, |
||
1549 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, |
||
1550 | "MODE_ID", 0); |
||
1551 | if (!prop) |
||
1552 | return -ENOMEM; |
||
1553 | dev->mode_config.prop_mode_id = prop; |
||
1554 | |||
7144 | serge | 1555 | prop = drm_property_create(dev, |
1556 | DRM_MODE_PROP_BLOB, |
||
1557 | "DEGAMMA_LUT", 0); |
||
1558 | if (!prop) |
||
1559 | return -ENOMEM; |
||
1560 | dev->mode_config.degamma_lut_property = prop; |
||
1561 | |||
1562 | prop = drm_property_create_range(dev, |
||
1563 | DRM_MODE_PROP_IMMUTABLE, |
||
1564 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); |
||
1565 | if (!prop) |
||
1566 | return -ENOMEM; |
||
1567 | dev->mode_config.degamma_lut_size_property = prop; |
||
1568 | |||
1569 | prop = drm_property_create(dev, |
||
1570 | DRM_MODE_PROP_BLOB, |
||
1571 | "CTM", 0); |
||
1572 | if (!prop) |
||
1573 | return -ENOMEM; |
||
1574 | dev->mode_config.ctm_property = prop; |
||
1575 | |||
1576 | prop = drm_property_create(dev, |
||
1577 | DRM_MODE_PROP_BLOB, |
||
1578 | "GAMMA_LUT", 0); |
||
1579 | if (!prop) |
||
1580 | return -ENOMEM; |
||
1581 | dev->mode_config.gamma_lut_property = prop; |
||
1582 | |||
1583 | prop = drm_property_create_range(dev, |
||
1584 | DRM_MODE_PROP_IMMUTABLE, |
||
1585 | "GAMMA_LUT_SIZE", 0, UINT_MAX); |
||
1586 | if (!prop) |
||
1587 | return -ENOMEM; |
||
1588 | dev->mode_config.gamma_lut_size_property = prop; |
||
1589 | |||
5060 | serge | 1590 | return 0; |
1591 | } |
||
1592 | |||
1123 | serge | 1593 | /** |
1594 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
||
1595 | * @dev: DRM device |
||
1596 | * |
||
1597 | * Called by a driver the first time a DVI-I connector is made. |
||
1598 | */ |
||
1599 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
||
1600 | { |
||
1601 | struct drm_property *dvi_i_selector; |
||
1602 | struct drm_property *dvi_i_subconnector; |
||
1603 | |||
1604 | if (dev->mode_config.dvi_i_select_subconnector_property) |
||
1605 | return 0; |
||
1606 | |||
1607 | dvi_i_selector = |
||
3031 | serge | 1608 | drm_property_create_enum(dev, 0, |
1123 | serge | 1609 | "select subconnector", |
3031 | serge | 1610 | drm_dvi_i_select_enum_list, |
1123 | serge | 1611 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
1612 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
||
1613 | |||
3031 | serge | 1614 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1123 | serge | 1615 | "subconnector", |
3031 | serge | 1616 | drm_dvi_i_subconnector_enum_list, |
1123 | serge | 1617 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
1618 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
||
1619 | |||
1620 | return 0; |
||
1621 | } |
||
1622 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
||
1623 | |||
1624 | /** |
||
1625 | * drm_create_tv_properties - create TV specific connector properties |
||
1626 | * @dev: DRM device |
||
1627 | * @num_modes: number of different TV formats (modes) supported |
||
1628 | * @modes: array of pointers to strings containing name of each format |
||
1629 | * |
||
1630 | * Called by a driver's TV initialization routine, this function creates |
||
1631 | * the TV specific connector properties for a given device. Caller is |
||
1632 | * responsible for allocating a list of format names and passing them to |
||
1633 | * this routine. |
||
1634 | */ |
||
5271 | serge | 1635 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1636 | unsigned int num_modes, |
||
6084 | serge | 1637 | const char * const modes[]) |
1123 | serge | 1638 | { |
1639 | struct drm_property *tv_selector; |
||
1640 | struct drm_property *tv_subconnector; |
||
5271 | serge | 1641 | unsigned int i; |
1123 | serge | 1642 | |
1643 | if (dev->mode_config.tv_select_subconnector_property) |
||
1644 | return 0; |
||
1645 | |||
1646 | /* |
||
1647 | * Basic connector properties |
||
1648 | */ |
||
3031 | serge | 1649 | tv_selector = drm_property_create_enum(dev, 0, |
1123 | serge | 1650 | "select subconnector", |
3031 | serge | 1651 | drm_tv_select_enum_list, |
1123 | serge | 1652 | ARRAY_SIZE(drm_tv_select_enum_list)); |
6084 | serge | 1653 | if (!tv_selector) |
1654 | goto nomem; |
||
1655 | |||
1123 | serge | 1656 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1657 | |||
1658 | tv_subconnector = |
||
3031 | serge | 1659 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1660 | "subconnector", |
||
1661 | drm_tv_subconnector_enum_list, |
||
1123 | serge | 1662 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
6084 | serge | 1663 | if (!tv_subconnector) |
1664 | goto nomem; |
||
1123 | serge | 1665 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1666 | |||
1667 | /* |
||
1668 | * Other, TV specific properties: margins & TV modes. |
||
1669 | */ |
||
1670 | dev->mode_config.tv_left_margin_property = |
||
3031 | serge | 1671 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
6084 | serge | 1672 | if (!dev->mode_config.tv_left_margin_property) |
1673 | goto nomem; |
||
1123 | serge | 1674 | |
1675 | dev->mode_config.tv_right_margin_property = |
||
3031 | serge | 1676 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
6084 | serge | 1677 | if (!dev->mode_config.tv_right_margin_property) |
1678 | goto nomem; |
||
1123 | serge | 1679 | |
1680 | dev->mode_config.tv_top_margin_property = |
||
3031 | serge | 1681 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
6084 | serge | 1682 | if (!dev->mode_config.tv_top_margin_property) |
1683 | goto nomem; |
||
1123 | serge | 1684 | |
1685 | dev->mode_config.tv_bottom_margin_property = |
||
3031 | serge | 1686 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
6084 | serge | 1687 | if (!dev->mode_config.tv_bottom_margin_property) |
1688 | goto nomem; |
||
1123 | serge | 1689 | |
1690 | dev->mode_config.tv_mode_property = |
||
1691 | drm_property_create(dev, DRM_MODE_PROP_ENUM, |
||
1692 | "mode", num_modes); |
||
6084 | serge | 1693 | if (!dev->mode_config.tv_mode_property) |
1694 | goto nomem; |
||
1695 | |||
1123 | serge | 1696 | for (i = 0; i < num_modes; i++) |
1697 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
||
1698 | i, modes[i]); |
||
1699 | |||
1179 | serge | 1700 | dev->mode_config.tv_brightness_property = |
3031 | serge | 1701 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
6084 | serge | 1702 | if (!dev->mode_config.tv_brightness_property) |
1703 | goto nomem; |
||
1179 | serge | 1704 | |
1705 | dev->mode_config.tv_contrast_property = |
||
3031 | serge | 1706 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
6084 | serge | 1707 | if (!dev->mode_config.tv_contrast_property) |
1708 | goto nomem; |
||
1179 | serge | 1709 | |
1710 | dev->mode_config.tv_flicker_reduction_property = |
||
3031 | serge | 1711 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
6084 | serge | 1712 | if (!dev->mode_config.tv_flicker_reduction_property) |
1713 | goto nomem; |
||
1179 | serge | 1714 | |
1715 | dev->mode_config.tv_overscan_property = |
||
3031 | serge | 1716 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
6084 | serge | 1717 | if (!dev->mode_config.tv_overscan_property) |
1718 | goto nomem; |
||
1179 | serge | 1719 | |
1720 | dev->mode_config.tv_saturation_property = |
||
3031 | serge | 1721 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
6084 | serge | 1722 | if (!dev->mode_config.tv_saturation_property) |
1723 | goto nomem; |
||
1179 | serge | 1724 | |
1725 | dev->mode_config.tv_hue_property = |
||
3031 | serge | 1726 | drm_property_create_range(dev, 0, "hue", 0, 100); |
6084 | serge | 1727 | if (!dev->mode_config.tv_hue_property) |
1728 | goto nomem; |
||
1179 | serge | 1729 | |
1123 | serge | 1730 | return 0; |
6084 | serge | 1731 | nomem: |
1732 | return -ENOMEM; |
||
1123 | serge | 1733 | } |
1734 | EXPORT_SYMBOL(drm_mode_create_tv_properties); |
||
1735 | |||
1736 | /** |
||
1737 | * drm_mode_create_scaling_mode_property - create scaling mode property |
||
1738 | * @dev: DRM device |
||
1739 | * |
||
1740 | * Called by a driver the first time it's needed, must be attached to desired |
||
1741 | * connectors. |
||
1742 | */ |
||
1743 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
||
1744 | { |
||
1745 | struct drm_property *scaling_mode; |
||
1746 | |||
1747 | if (dev->mode_config.scaling_mode_property) |
||
1748 | return 0; |
||
1749 | |||
1750 | scaling_mode = |
||
3031 | serge | 1751 | drm_property_create_enum(dev, 0, "scaling mode", |
1752 | drm_scaling_mode_enum_list, |
||
1123 | serge | 1753 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
1754 | |||
1755 | dev->mode_config.scaling_mode_property = scaling_mode; |
||
1756 | |||
1757 | return 0; |
||
1758 | } |
||
1759 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
||
1760 | |||
1761 | /** |
||
5060 | serge | 1762 | * drm_mode_create_aspect_ratio_property - create aspect ratio property |
1763 | * @dev: DRM device |
||
1764 | * |
||
1765 | * Called by a driver the first time it's needed, must be attached to desired |
||
1766 | * connectors. |
||
1767 | * |
||
1768 | * Returns: |
||
5271 | serge | 1769 | * Zero on success, negative errno on failure. |
5060 | serge | 1770 | */ |
1771 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) |
||
1772 | { |
||
1773 | if (dev->mode_config.aspect_ratio_property) |
||
1774 | return 0; |
||
1775 | |||
1776 | dev->mode_config.aspect_ratio_property = |
||
1777 | drm_property_create_enum(dev, 0, "aspect ratio", |
||
1778 | drm_aspect_ratio_enum_list, |
||
1779 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); |
||
1780 | |||
1781 | if (dev->mode_config.aspect_ratio_property == NULL) |
||
1782 | return -ENOMEM; |
||
1783 | |||
1784 | return 0; |
||
1785 | } |
||
1786 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); |
||
1787 | |||
1788 | /** |
||
1321 | serge | 1789 | * drm_mode_create_dirty_property - create dirty property |
1790 | * @dev: DRM device |
||
1791 | * |
||
1792 | * Called by a driver the first time it's needed, must be attached to desired |
||
1793 | * connectors. |
||
1794 | */ |
||
1795 | int drm_mode_create_dirty_info_property(struct drm_device *dev) |
||
1796 | { |
||
1797 | struct drm_property *dirty_info; |
||
1798 | |||
1799 | if (dev->mode_config.dirty_info_property) |
||
1800 | return 0; |
||
1801 | |||
1802 | dirty_info = |
||
3031 | serge | 1803 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1321 | serge | 1804 | "dirty", |
3031 | serge | 1805 | drm_dirty_info_enum_list, |
1321 | serge | 1806 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
1807 | dev->mode_config.dirty_info_property = dirty_info; |
||
1808 | |||
1809 | return 0; |
||
1810 | } |
||
1811 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); |
||
1812 | |||
5271 | serge | 1813 | /** |
1814 | * drm_mode_create_suggested_offset_properties - create suggests offset properties |
||
1815 | * @dev: DRM device |
||
1816 | * |
||
1817 | * Create the the suggested x/y offset property for connectors. |
||
1818 | */ |
||
1819 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) |
||
1820 | { |
||
1821 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) |
||
1822 | return 0; |
||
1823 | |||
1824 | dev->mode_config.suggested_x_property = |
||
1825 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); |
||
1826 | |||
1827 | dev->mode_config.suggested_y_property = |
||
1828 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); |
||
1829 | |||
1830 | if (dev->mode_config.suggested_x_property == NULL || |
||
1831 | dev->mode_config.suggested_y_property == NULL) |
||
1832 | return -ENOMEM; |
||
1833 | return 0; |
||
1834 | } |
||
1835 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); |
||
1836 | |||
1123 | serge | 1837 | #if 0 |
1838 | /** |
||
1839 | * drm_mode_getresources - get graphics configuration |
||
3480 | Serge | 1840 | * @dev: drm device for the ioctl |
1841 | * @data: data pointer for the ioctl |
||
1842 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1843 | * |
1844 | * Construct a set of configuration description structures and return |
||
1845 | * them to the user, including CRTC, connector and framebuffer configuration. |
||
1846 | * |
||
1847 | * Called by the user via ioctl. |
||
1848 | * |
||
5060 | serge | 1849 | * Returns: |
5271 | serge | 1850 | * Zero on success, negative errno on failure. |
1123 | serge | 1851 | */ |
1852 | int drm_mode_getresources(struct drm_device *dev, void *data, |
||
1853 | struct drm_file *file_priv) |
||
1854 | { |
||
1855 | struct drm_mode_card_res *card_res = data; |
||
1856 | struct list_head *lh; |
||
1857 | struct drm_framebuffer *fb; |
||
1858 | struct drm_connector *connector; |
||
1859 | struct drm_crtc *crtc; |
||
1860 | struct drm_encoder *encoder; |
||
1861 | int ret = 0; |
||
1862 | int connector_count = 0; |
||
1863 | int crtc_count = 0; |
||
1864 | int fb_count = 0; |
||
1865 | int encoder_count = 0; |
||
6084 | serge | 1866 | int copied = 0; |
1123 | serge | 1867 | uint32_t __user *fb_id; |
1868 | uint32_t __user *crtc_id; |
||
1869 | uint32_t __user *connector_id; |
||
1870 | uint32_t __user *encoder_id; |
||
1871 | |||
1963 | serge | 1872 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1873 | return -EINVAL; |
||
1874 | |||
1123 | serge | 1875 | |
3480 | Serge | 1876 | mutex_lock(&file_priv->fbs_lock); |
1123 | serge | 1877 | /* |
1878 | * For the non-control nodes we need to limit the list of resources |
||
1879 | * by IDs in the group list for this node |
||
1880 | */ |
||
1881 | list_for_each(lh, &file_priv->fbs) |
||
1882 | fb_count++; |
||
1883 | |||
3480 | Serge | 1884 | /* handle this in 4 parts */ |
1885 | /* FBs */ |
||
1886 | if (card_res->count_fbs >= fb_count) { |
||
1887 | copied = 0; |
||
1888 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
||
1889 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { |
||
1890 | if (put_user(fb->base.id, fb_id + copied)) { |
||
1891 | mutex_unlock(&file_priv->fbs_lock); |
||
1892 | return -EFAULT; |
||
1893 | } |
||
1894 | copied++; |
||
1895 | } |
||
1896 | } |
||
1897 | card_res->count_fbs = fb_count; |
||
1898 | mutex_unlock(&file_priv->fbs_lock); |
||
1899 | |||
5271 | serge | 1900 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1901 | * connector hot-adding. CRTC/Plane lists are invariant. */ |
||
1902 | mutex_lock(&dev->mode_config.mutex); |
||
6084 | serge | 1903 | drm_for_each_crtc(crtc, dev) |
1904 | crtc_count++; |
||
1123 | serge | 1905 | |
6084 | serge | 1906 | drm_for_each_connector(connector, dev) |
1907 | connector_count++; |
||
1123 | serge | 1908 | |
6084 | serge | 1909 | drm_for_each_encoder(encoder, dev) |
1910 | encoder_count++; |
||
1123 | serge | 1911 | |
1912 | card_res->max_height = dev->mode_config.max_height; |
||
1913 | card_res->min_height = dev->mode_config.min_height; |
||
1914 | card_res->max_width = dev->mode_config.max_width; |
||
1915 | card_res->min_width = dev->mode_config.min_width; |
||
1916 | |||
1917 | /* CRTCs */ |
||
1918 | if (card_res->count_crtcs >= crtc_count) { |
||
1919 | copied = 0; |
||
1920 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
||
6084 | serge | 1921 | drm_for_each_crtc(crtc, dev) { |
6937 | serge | 1922 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", |
1923 | crtc->base.id, crtc->name); |
||
6084 | serge | 1924 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1925 | ret = -EFAULT; |
||
1926 | goto out; |
||
1123 | serge | 1927 | } |
6084 | serge | 1928 | copied++; |
1123 | serge | 1929 | } |
1930 | } |
||
1931 | card_res->count_crtcs = crtc_count; |
||
1932 | |||
1933 | /* Encoders */ |
||
1934 | if (card_res->count_encoders >= encoder_count) { |
||
1935 | copied = 0; |
||
1936 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
||
6084 | serge | 1937 | drm_for_each_encoder(encoder, dev) { |
1938 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
||
1939 | encoder->name); |
||
1940 | if (put_user(encoder->base.id, encoder_id + |
||
1941 | copied)) { |
||
1942 | ret = -EFAULT; |
||
1943 | goto out; |
||
1123 | serge | 1944 | } |
6084 | serge | 1945 | copied++; |
1123 | serge | 1946 | } |
1947 | } |
||
1948 | card_res->count_encoders = encoder_count; |
||
1949 | |||
1950 | /* Connectors */ |
||
1951 | if (card_res->count_connectors >= connector_count) { |
||
1952 | copied = 0; |
||
1953 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
||
6084 | serge | 1954 | drm_for_each_connector(connector, dev) { |
1955 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
||
1956 | connector->base.id, |
||
1957 | connector->name); |
||
1958 | if (put_user(connector->base.id, |
||
1959 | connector_id + copied)) { |
||
1960 | ret = -EFAULT; |
||
1961 | goto out; |
||
1123 | serge | 1962 | } |
6084 | serge | 1963 | copied++; |
1123 | serge | 1964 | } |
1965 | } |
||
1966 | card_res->count_connectors = connector_count; |
||
1967 | |||
1963 | serge | 1968 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
1123 | serge | 1969 | card_res->count_connectors, card_res->count_encoders); |
1970 | |||
1971 | out: |
||
5271 | serge | 1972 | mutex_unlock(&dev->mode_config.mutex); |
1123 | serge | 1973 | return ret; |
1974 | } |
||
1975 | |||
1976 | /** |
||
1977 | * drm_mode_getcrtc - get CRTC configuration |
||
3480 | Serge | 1978 | * @dev: drm device for the ioctl |
1979 | * @data: data pointer for the ioctl |
||
1980 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1981 | * |
1982 | * Construct a CRTC configuration structure to return to the user. |
||
1983 | * |
||
1984 | * Called by the user via ioctl. |
||
1985 | * |
||
5060 | serge | 1986 | * Returns: |
5271 | serge | 1987 | * Zero on success, negative errno on failure. |
1123 | serge | 1988 | */ |
1989 | int drm_mode_getcrtc(struct drm_device *dev, |
||
1990 | void *data, struct drm_file *file_priv) |
||
1991 | { |
||
1992 | struct drm_mode_crtc *crtc_resp = data; |
||
1993 | struct drm_crtc *crtc; |
||
1994 | |||
1963 | serge | 1995 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1996 | return -EINVAL; |
||
1997 | |||
5060 | serge | 1998 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
5271 | serge | 1999 | if (!crtc) |
2000 | return -ENOENT; |
||
1123 | serge | 2001 | |
5271 | serge | 2002 | drm_modeset_lock_crtc(crtc, crtc->primary); |
1123 | serge | 2003 | crtc_resp->gamma_size = crtc->gamma_size; |
5060 | serge | 2004 | if (crtc->primary->fb) |
2005 | crtc_resp->fb_id = crtc->primary->fb->base.id; |
||
1123 | serge | 2006 | else |
2007 | crtc_resp->fb_id = 0; |
||
2008 | |||
6084 | serge | 2009 | if (crtc->state) { |
2010 | crtc_resp->x = crtc->primary->state->src_x >> 16; |
||
2011 | crtc_resp->y = crtc->primary->state->src_y >> 16; |
||
2012 | if (crtc->state->enable) { |
||
2013 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
||
2014 | crtc_resp->mode_valid = 1; |
||
1123 | serge | 2015 | |
6084 | serge | 2016 | } else { |
2017 | crtc_resp->mode_valid = 0; |
||
2018 | } |
||
2019 | } else { |
||
2020 | crtc_resp->x = crtc->x; |
||
2021 | crtc_resp->y = crtc->y; |
||
2022 | if (crtc->enabled) { |
||
2023 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
||
2024 | crtc_resp->mode_valid = 1; |
||
1123 | serge | 2025 | |
6084 | serge | 2026 | } else { |
2027 | crtc_resp->mode_valid = 0; |
||
2028 | } |
||
1123 | serge | 2029 | } |
5271 | serge | 2030 | drm_modeset_unlock_crtc(crtc); |
1123 | serge | 2031 | |
5271 | serge | 2032 | return 0; |
1123 | serge | 2033 | } |
2034 | |||
4560 | Serge | 2035 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2036 | const struct drm_file *file_priv) |
||
2037 | { |
||
2038 | /* |
||
2039 | * If user-space hasn't configured the driver to expose the stereo 3D |
||
2040 | * modes, don't expose them. |
||
2041 | */ |
||
2042 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) |
||
2043 | return false; |
||
2044 | |||
2045 | return true; |
||
2046 | } |
||
2047 | |||
5271 | serge | 2048 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2049 | { |
||
2050 | /* For atomic drivers only state objects are synchronously updated and |
||
2051 | * protected by modeset locks, so check those first. */ |
||
2052 | if (connector->state) |
||
2053 | return connector->state->best_encoder; |
||
2054 | return connector->encoder; |
||
2055 | } |
||
2056 | |||
6084 | serge | 2057 | /* helper for getconnector and getproperties ioctls */ |
2058 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
||
2059 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
||
2060 | uint32_t *arg_count_props) |
||
2061 | { |
||
2062 | int props_count; |
||
2063 | int i, ret, copied; |
||
2064 | |||
2065 | props_count = obj->properties->count; |
||
2066 | if (!atomic) |
||
2067 | props_count -= obj->properties->atomic_count; |
||
2068 | |||
2069 | if ((*arg_count_props >= props_count) && props_count) { |
||
2070 | for (i = 0, copied = 0; copied < props_count; i++) { |
||
2071 | struct drm_property *prop = obj->properties->properties[i]; |
||
2072 | uint64_t val; |
||
2073 | |||
2074 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
||
2075 | continue; |
||
2076 | |||
2077 | ret = drm_object_property_get_value(obj, prop, &val); |
||
2078 | if (ret) |
||
2079 | return ret; |
||
2080 | |||
2081 | if (put_user(prop->base.id, prop_ptr + copied)) |
||
2082 | return -EFAULT; |
||
2083 | |||
2084 | if (put_user(val, prop_values + copied)) |
||
2085 | return -EFAULT; |
||
2086 | |||
2087 | copied++; |
||
2088 | } |
||
2089 | } |
||
2090 | *arg_count_props = props_count; |
||
2091 | |||
2092 | return 0; |
||
2093 | } |
||
2094 | |||
1123 | serge | 2095 | /** |
2096 | * drm_mode_getconnector - get connector configuration |
||
3480 | Serge | 2097 | * @dev: drm device for the ioctl |
2098 | * @data: data pointer for the ioctl |
||
2099 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2100 | * |
2101 | * Construct a connector configuration structure to return to the user. |
||
2102 | * |
||
2103 | * Called by the user via ioctl. |
||
2104 | * |
||
5060 | serge | 2105 | * Returns: |
5271 | serge | 2106 | * Zero on success, negative errno on failure. |
1123 | serge | 2107 | */ |
2108 | int drm_mode_getconnector(struct drm_device *dev, void *data, |
||
2109 | struct drm_file *file_priv) |
||
2110 | { |
||
2111 | struct drm_mode_get_connector *out_resp = data; |
||
2112 | struct drm_connector *connector; |
||
5271 | serge | 2113 | struct drm_encoder *encoder; |
1123 | serge | 2114 | struct drm_display_mode *mode; |
2115 | int mode_count = 0; |
||
2116 | int encoders_count = 0; |
||
2117 | int ret = 0; |
||
2118 | int copied = 0; |
||
2119 | int i; |
||
2120 | struct drm_mode_modeinfo u_mode; |
||
2121 | struct drm_mode_modeinfo __user *mode_ptr; |
||
2122 | uint32_t __user *encoder_ptr; |
||
2123 | |||
1963 | serge | 2124 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2125 | return -EINVAL; |
||
2126 | |||
1123 | serge | 2127 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2128 | |||
1963 | serge | 2129 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
1123 | serge | 2130 | |
2131 | mutex_lock(&dev->mode_config.mutex); |
||
2132 | |||
5060 | serge | 2133 | connector = drm_connector_find(dev, out_resp->connector_id); |
2134 | if (!connector) { |
||
4560 | Serge | 2135 | ret = -ENOENT; |
6084 | serge | 2136 | goto out_unlock; |
1123 | serge | 2137 | } |
2138 | |||
6084 | serge | 2139 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2140 | if (connector->encoder_ids[i] != 0) |
||
1123 | serge | 2141 | encoders_count++; |
2142 | |||
2143 | if (out_resp->count_modes == 0) { |
||
2144 | connector->funcs->fill_modes(connector, |
||
2145 | dev->mode_config.max_width, |
||
2146 | dev->mode_config.max_height); |
||
2147 | } |
||
2148 | |||
2149 | /* delayed so we get modes regardless of pre-fill_modes state */ |
||
2150 | list_for_each_entry(mode, &connector->modes, head) |
||
4560 | Serge | 2151 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
6084 | serge | 2152 | mode_count++; |
1123 | serge | 2153 | |
2154 | out_resp->connector_id = connector->base.id; |
||
2155 | out_resp->connector_type = connector->connector_type; |
||
2156 | out_resp->connector_type_id = connector->connector_type_id; |
||
2157 | out_resp->mm_width = connector->display_info.width_mm; |
||
2158 | out_resp->mm_height = connector->display_info.height_mm; |
||
2159 | out_resp->subpixel = connector->display_info.subpixel_order; |
||
2160 | out_resp->connection = connector->status; |
||
6084 | serge | 2161 | |
5060 | serge | 2162 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
5271 | serge | 2163 | encoder = drm_connector_get_encoder(connector); |
2164 | if (encoder) |
||
2165 | out_resp->encoder_id = encoder->base.id; |
||
1123 | serge | 2166 | else |
2167 | out_resp->encoder_id = 0; |
||
2168 | |||
2169 | /* |
||
2170 | * This ioctl is called twice, once to determine how much space is |
||
2171 | * needed, and the 2nd time to fill it. |
||
2172 | */ |
||
2173 | if ((out_resp->count_modes >= mode_count) && mode_count) { |
||
2174 | copied = 0; |
||
3031 | serge | 2175 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
1123 | serge | 2176 | list_for_each_entry(mode, &connector->modes, head) { |
4560 | Serge | 2177 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2178 | continue; |
||
2179 | |||
6084 | serge | 2180 | drm_mode_convert_to_umode(&u_mode, mode); |
1123 | serge | 2181 | if (copy_to_user(mode_ptr + copied, |
2182 | &u_mode, sizeof(u_mode))) { |
||
2183 | ret = -EFAULT; |
||
2184 | goto out; |
||
2185 | } |
||
2186 | copied++; |
||
2187 | } |
||
2188 | } |
||
2189 | out_resp->count_modes = mode_count; |
||
2190 | |||
6084 | serge | 2191 | ret = get_properties(&connector->base, file_priv->atomic, |
2192 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
||
2193 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), |
||
2194 | &out_resp->count_props); |
||
2195 | if (ret) |
||
2196 | goto out; |
||
1123 | serge | 2197 | |
2198 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
||
2199 | copied = 0; |
||
3031 | serge | 2200 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
1123 | serge | 2201 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2202 | if (connector->encoder_ids[i] != 0) { |
||
2203 | if (put_user(connector->encoder_ids[i], |
||
2204 | encoder_ptr + copied)) { |
||
2205 | ret = -EFAULT; |
||
2206 | goto out; |
||
2207 | } |
||
2208 | copied++; |
||
2209 | } |
||
2210 | } |
||
2211 | } |
||
2212 | out_resp->count_encoders = encoders_count; |
||
2213 | |||
2214 | out: |
||
6084 | serge | 2215 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2216 | |||
2217 | out_unlock: |
||
1123 | serge | 2218 | mutex_unlock(&dev->mode_config.mutex); |
3480 | Serge | 2219 | |
1123 | serge | 2220 | return ret; |
2221 | } |
||
2222 | |||
5271 | serge | 2223 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2224 | { |
||
2225 | struct drm_connector *connector; |
||
2226 | struct drm_device *dev = encoder->dev; |
||
2227 | bool uses_atomic = false; |
||
2228 | |||
2229 | /* For atomic drivers only state objects are synchronously updated and |
||
2230 | * protected by modeset locks, so check those first. */ |
||
6084 | serge | 2231 | drm_for_each_connector(connector, dev) { |
5271 | serge | 2232 | if (!connector->state) |
2233 | continue; |
||
2234 | |||
2235 | uses_atomic = true; |
||
2236 | |||
2237 | if (connector->state->best_encoder != encoder) |
||
2238 | continue; |
||
2239 | |||
2240 | return connector->state->crtc; |
||
2241 | } |
||
2242 | |||
2243 | /* Don't return stale data (e.g. pending async disable). */ |
||
2244 | if (uses_atomic) |
||
2245 | return NULL; |
||
2246 | |||
2247 | return encoder->crtc; |
||
2248 | } |
||
2249 | |||
5060 | serge | 2250 | /** |
2251 | * drm_mode_getencoder - get encoder configuration |
||
2252 | * @dev: drm device for the ioctl |
||
2253 | * @data: data pointer for the ioctl |
||
2254 | * @file_priv: drm file for the ioctl call |
||
2255 | * |
||
2256 | * Construct a encoder configuration structure to return to the user. |
||
2257 | * |
||
2258 | * Called by the user via ioctl. |
||
2259 | * |
||
2260 | * Returns: |
||
5271 | serge | 2261 | * Zero on success, negative errno on failure. |
5060 | serge | 2262 | */ |
1123 | serge | 2263 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2264 | struct drm_file *file_priv) |
||
2265 | { |
||
2266 | struct drm_mode_get_encoder *enc_resp = data; |
||
2267 | struct drm_encoder *encoder; |
||
5271 | serge | 2268 | struct drm_crtc *crtc; |
1123 | serge | 2269 | |
1963 | serge | 2270 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2271 | return -EINVAL; |
||
2272 | |||
5060 | serge | 2273 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
5271 | serge | 2274 | if (!encoder) |
2275 | return -ENOENT; |
||
1123 | serge | 2276 | |
5271 | serge | 2277 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
2278 | crtc = drm_encoder_get_crtc(encoder); |
||
2279 | if (crtc) |
||
2280 | enc_resp->crtc_id = crtc->base.id; |
||
1123 | serge | 2281 | else |
2282 | enc_resp->crtc_id = 0; |
||
5271 | serge | 2283 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2284 | |||
1123 | serge | 2285 | enc_resp->encoder_type = encoder->encoder_type; |
2286 | enc_resp->encoder_id = encoder->base.id; |
||
2287 | enc_resp->possible_crtcs = encoder->possible_crtcs; |
||
2288 | enc_resp->possible_clones = encoder->possible_clones; |
||
2289 | |||
5271 | serge | 2290 | return 0; |
1123 | serge | 2291 | } |
2292 | |||
2293 | /** |
||
5060 | serge | 2294 | * drm_mode_getplane_res - enumerate all plane resources |
3031 | serge | 2295 | * @dev: DRM device |
2296 | * @data: ioctl data |
||
2297 | * @file_priv: DRM file info |
||
2298 | * |
||
5060 | serge | 2299 | * Construct a list of plane ids to return to the user. |
2300 | * |
||
2301 | * Called by the user via ioctl. |
||
2302 | * |
||
2303 | * Returns: |
||
5271 | serge | 2304 | * Zero on success, negative errno on failure. |
3031 | serge | 2305 | */ |
2306 | int drm_mode_getplane_res(struct drm_device *dev, void *data, |
||
6084 | serge | 2307 | struct drm_file *file_priv) |
3031 | serge | 2308 | { |
2309 | struct drm_mode_get_plane_res *plane_resp = data; |
||
2310 | struct drm_mode_config *config; |
||
2311 | struct drm_plane *plane; |
||
2312 | uint32_t __user *plane_ptr; |
||
5271 | serge | 2313 | int copied = 0; |
5060 | serge | 2314 | unsigned num_planes; |
3031 | serge | 2315 | |
2316 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2317 | return -EINVAL; |
||
2318 | |||
2319 | config = &dev->mode_config; |
||
2320 | |||
5060 | serge | 2321 | if (file_priv->universal_planes) |
2322 | num_planes = config->num_total_plane; |
||
2323 | else |
||
2324 | num_planes = config->num_overlay_plane; |
||
2325 | |||
3031 | serge | 2326 | /* |
2327 | * This ioctl is called twice, once to determine how much space is |
||
2328 | * needed, and the 2nd time to fill it. |
||
2329 | */ |
||
5060 | serge | 2330 | if (num_planes && |
2331 | (plane_resp->count_planes >= num_planes)) { |
||
3031 | serge | 2332 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
2333 | |||
5271 | serge | 2334 | /* Plane lists are invariant, no locking needed. */ |
6084 | serge | 2335 | drm_for_each_plane(plane, dev) { |
5060 | serge | 2336 | /* |
2337 | * Unless userspace set the 'universal planes' |
||
2338 | * capability bit, only advertise overlays. |
||
2339 | */ |
||
2340 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && |
||
2341 | !file_priv->universal_planes) |
||
2342 | continue; |
||
2343 | |||
5271 | serge | 2344 | if (put_user(plane->base.id, plane_ptr + copied)) |
2345 | return -EFAULT; |
||
3031 | serge | 2346 | copied++; |
2347 | } |
||
2348 | } |
||
5060 | serge | 2349 | plane_resp->count_planes = num_planes; |
3031 | serge | 2350 | |
5271 | serge | 2351 | return 0; |
3031 | serge | 2352 | } |
2353 | |||
2354 | /** |
||
5060 | serge | 2355 | * drm_mode_getplane - get plane configuration |
3031 | serge | 2356 | * @dev: DRM device |
2357 | * @data: ioctl data |
||
2358 | * @file_priv: DRM file info |
||
2359 | * |
||
5060 | serge | 2360 | * Construct a plane configuration structure to return to the user. |
2361 | * |
||
2362 | * Called by the user via ioctl. |
||
2363 | * |
||
2364 | * Returns: |
||
5271 | serge | 2365 | * Zero on success, negative errno on failure. |
3031 | serge | 2366 | */ |
2367 | int drm_mode_getplane(struct drm_device *dev, void *data, |
||
6084 | serge | 2368 | struct drm_file *file_priv) |
3031 | serge | 2369 | { |
2370 | struct drm_mode_get_plane *plane_resp = data; |
||
2371 | struct drm_plane *plane; |
||
2372 | uint32_t __user *format_ptr; |
||
2373 | |||
2374 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2375 | return -EINVAL; |
||
2376 | |||
5060 | serge | 2377 | plane = drm_plane_find(dev, plane_resp->plane_id); |
5271 | serge | 2378 | if (!plane) |
2379 | return -ENOENT; |
||
3031 | serge | 2380 | |
5271 | serge | 2381 | drm_modeset_lock(&plane->mutex, NULL); |
3031 | serge | 2382 | if (plane->crtc) |
2383 | plane_resp->crtc_id = plane->crtc->base.id; |
||
2384 | else |
||
2385 | plane_resp->crtc_id = 0; |
||
2386 | |||
2387 | if (plane->fb) |
||
2388 | plane_resp->fb_id = plane->fb->base.id; |
||
2389 | else |
||
2390 | plane_resp->fb_id = 0; |
||
5271 | serge | 2391 | drm_modeset_unlock(&plane->mutex); |
3031 | serge | 2392 | |
2393 | plane_resp->plane_id = plane->base.id; |
||
2394 | plane_resp->possible_crtcs = plane->possible_crtcs; |
||
4075 | Serge | 2395 | plane_resp->gamma_size = 0; |
3031 | serge | 2396 | |
2397 | /* |
||
2398 | * This ioctl is called twice, once to determine how much space is |
||
2399 | * needed, and the 2nd time to fill it. |
||
2400 | */ |
||
2401 | if (plane->format_count && |
||
2402 | (plane_resp->count_format_types >= plane->format_count)) { |
||
2403 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
||
2404 | if (copy_to_user(format_ptr, |
||
2405 | plane->format_types, |
||
2406 | sizeof(uint32_t) * plane->format_count)) { |
||
5271 | serge | 2407 | return -EFAULT; |
3031 | serge | 2408 | } |
2409 | } |
||
2410 | plane_resp->count_format_types = plane->format_count; |
||
2411 | |||
5271 | serge | 2412 | return 0; |
3031 | serge | 2413 | } |
6084 | serge | 2414 | #endif |
3031 | serge | 2415 | |
6084 | serge | 2416 | /** |
2417 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format |
||
2418 | * @plane: plane to check for format support |
||
2419 | * @format: the pixel format |
||
2420 | * |
||
2421 | * Returns: |
||
2422 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL |
||
2423 | * otherwise. |
||
2424 | */ |
||
2425 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) |
||
2426 | { |
||
2427 | unsigned int i; |
||
2428 | |||
2429 | for (i = 0; i < plane->format_count; i++) { |
||
2430 | if (format == plane->format_types[i]) |
||
2431 | return 0; |
||
2432 | } |
||
2433 | |||
2434 | return -EINVAL; |
||
2435 | } |
||
2436 | |||
2437 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
||
2438 | uint32_t src_w, uint32_t src_h, |
||
2439 | const struct drm_framebuffer *fb) |
||
2440 | { |
||
2441 | unsigned int fb_width, fb_height; |
||
2442 | |||
2443 | fb_width = fb->width << 16; |
||
2444 | fb_height = fb->height << 16; |
||
2445 | |||
2446 | /* Make sure source coordinates are inside the fb. */ |
||
2447 | if (src_w > fb_width || |
||
2448 | src_x > fb_width - src_w || |
||
2449 | src_h > fb_height || |
||
2450 | src_y > fb_height - src_h) { |
||
2451 | DRM_DEBUG_KMS("Invalid source coordinates " |
||
2452 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
||
2453 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
||
2454 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, |
||
2455 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, |
||
2456 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); |
||
2457 | return -ENOSPC; |
||
2458 | } |
||
2459 | |||
2460 | return 0; |
||
2461 | } |
||
2462 | |||
5060 | serge | 2463 | /* |
2464 | * setplane_internal - setplane handler for internal callers |
||
3031 | serge | 2465 | * |
5060 | serge | 2466 | * Note that we assume an extra reference has already been taken on fb. If the |
2467 | * update fails, this reference will be dropped before return; if it succeeds, |
||
2468 | * the previous framebuffer (if any) will be unreferenced instead. |
||
2469 | * |
||
2470 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
||
3031 | serge | 2471 | */ |
5271 | serge | 2472 | static int __setplane_internal(struct drm_plane *plane, |
6084 | serge | 2473 | struct drm_crtc *crtc, |
2474 | struct drm_framebuffer *fb, |
||
2475 | int32_t crtc_x, int32_t crtc_y, |
||
2476 | uint32_t crtc_w, uint32_t crtc_h, |
||
2477 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2478 | uint32_t src_x, uint32_t src_y, |
||
2479 | uint32_t src_w, uint32_t src_h) |
||
3031 | serge | 2480 | { |
2481 | int ret = 0; |
||
2482 | |||
2483 | /* No fb means shut it down */ |
||
5060 | serge | 2484 | if (!fb) { |
5271 | serge | 2485 | plane->old_fb = plane->fb; |
5060 | serge | 2486 | ret = plane->funcs->disable_plane(plane); |
2487 | if (!ret) { |
||
6084 | serge | 2488 | plane->crtc = NULL; |
2489 | plane->fb = NULL; |
||
5060 | serge | 2490 | } else { |
5271 | serge | 2491 | plane->old_fb = NULL; |
5060 | serge | 2492 | } |
3031 | serge | 2493 | goto out; |
2494 | } |
||
2495 | |||
5060 | serge | 2496 | /* Check whether this plane is usable on this CRTC */ |
2497 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { |
||
2498 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); |
||
2499 | ret = -EINVAL; |
||
3031 | serge | 2500 | goto out; |
2501 | } |
||
2502 | |||
2503 | /* Check whether this plane supports the fb pixel format. */ |
||
6084 | serge | 2504 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2505 | if (ret) { |
||
4075 | Serge | 2506 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2507 | drm_get_format_name(fb->pixel_format)); |
||
3031 | serge | 2508 | goto out; |
2509 | } |
||
2510 | |||
6084 | serge | 2511 | /* Give drivers some help against integer overflows */ |
2512 | if (crtc_w > INT_MAX || |
||
2513 | crtc_x > INT_MAX - (int32_t) crtc_w || |
||
2514 | crtc_h > INT_MAX || |
||
2515 | crtc_y > INT_MAX - (int32_t) crtc_h) { |
||
2516 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", |
||
2517 | crtc_w, crtc_h, crtc_x, crtc_y); |
||
2518 | ret = -ERANGE; |
||
3031 | serge | 2519 | goto out; |
2520 | } |
||
2521 | |||
6084 | serge | 2522 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
2523 | if (ret) |
||
2524 | goto out; |
||
2525 | |||
5271 | serge | 2526 | plane->old_fb = plane->fb; |
3031 | serge | 2527 | ret = plane->funcs->update_plane(plane, crtc, fb, |
5060 | serge | 2528 | crtc_x, crtc_y, crtc_w, crtc_h, |
2529 | src_x, src_y, src_w, src_h); |
||
3031 | serge | 2530 | if (!ret) { |
2531 | plane->crtc = crtc; |
||
2532 | plane->fb = fb; |
||
3480 | Serge | 2533 | fb = NULL; |
5060 | serge | 2534 | } else { |
5271 | serge | 2535 | plane->old_fb = NULL; |
3031 | serge | 2536 | } |
2537 | |||
2538 | out: |
||
3480 | Serge | 2539 | if (fb) |
2540 | drm_framebuffer_unreference(fb); |
||
5271 | serge | 2541 | if (plane->old_fb) |
2542 | drm_framebuffer_unreference(plane->old_fb); |
||
2543 | plane->old_fb = NULL; |
||
3031 | serge | 2544 | |
2545 | return ret; |
||
5271 | serge | 2546 | } |
5060 | serge | 2547 | |
5271 | serge | 2548 | static int setplane_internal(struct drm_plane *plane, |
2549 | struct drm_crtc *crtc, |
||
2550 | struct drm_framebuffer *fb, |
||
2551 | int32_t crtc_x, int32_t crtc_y, |
||
2552 | uint32_t crtc_w, uint32_t crtc_h, |
||
2553 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2554 | uint32_t src_x, uint32_t src_y, |
||
2555 | uint32_t src_w, uint32_t src_h) |
||
2556 | { |
||
2557 | int ret; |
||
2558 | |||
2559 | drm_modeset_lock_all(plane->dev); |
||
2560 | ret = __setplane_internal(plane, crtc, fb, |
||
2561 | crtc_x, crtc_y, crtc_w, crtc_h, |
||
2562 | src_x, src_y, src_w, src_h); |
||
2563 | drm_modeset_unlock_all(plane->dev); |
||
2564 | |||
2565 | return ret; |
||
3031 | serge | 2566 | } |
5060 | serge | 2567 | |
2568 | /** |
||
2569 | * drm_mode_setplane - configure a plane's configuration |
||
2570 | * @dev: DRM device |
||
2571 | * @data: ioctl data* |
||
2572 | * @file_priv: DRM file info |
||
2573 | * |
||
2574 | * Set plane configuration, including placement, fb, scaling, and other factors. |
||
2575 | * Or pass a NULL fb to disable (planes may be disabled without providing a |
||
2576 | * valid crtc). |
||
2577 | * |
||
2578 | * Returns: |
||
5271 | serge | 2579 | * Zero on success, negative errno on failure. |
5060 | serge | 2580 | */ |
2581 | int drm_mode_setplane(struct drm_device *dev, void *data, |
||
2582 | struct drm_file *file_priv) |
||
2583 | { |
||
2584 | struct drm_mode_set_plane *plane_req = data; |
||
2585 | struct drm_plane *plane; |
||
2586 | struct drm_crtc *crtc = NULL; |
||
2587 | struct drm_framebuffer *fb = NULL; |
||
2588 | |||
2589 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2590 | return -EINVAL; |
||
2591 | |||
2592 | /* |
||
2593 | * First, find the plane, crtc, and fb objects. If not available, |
||
2594 | * we don't bother to call the driver. |
||
2595 | */ |
||
5271 | serge | 2596 | plane = drm_plane_find(dev, plane_req->plane_id); |
2597 | if (!plane) { |
||
5060 | serge | 2598 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2599 | plane_req->plane_id); |
||
2600 | return -ENOENT; |
||
2601 | } |
||
2602 | |||
2603 | if (plane_req->fb_id) { |
||
2604 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
||
2605 | if (!fb) { |
||
2606 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
||
2607 | plane_req->fb_id); |
||
2608 | return -ENOENT; |
||
2609 | } |
||
2610 | |||
5271 | serge | 2611 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2612 | if (!crtc) { |
||
5060 | serge | 2613 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2614 | plane_req->crtc_id); |
||
2615 | return -ENOENT; |
||
2616 | } |
||
2617 | } |
||
2618 | |||
2619 | /* |
||
2620 | * setplane_internal will take care of deref'ing either the old or new |
||
2621 | * framebuffer depending on success. |
||
2622 | */ |
||
2623 | return setplane_internal(plane, crtc, fb, |
||
2624 | plane_req->crtc_x, plane_req->crtc_y, |
||
2625 | plane_req->crtc_w, plane_req->crtc_h, |
||
2626 | plane_req->src_x, plane_req->src_y, |
||
2627 | plane_req->src_w, plane_req->src_h); |
||
2628 | } |
||
3031 | serge | 2629 | |
2630 | /** |
||
3480 | Serge | 2631 | * drm_mode_set_config_internal - helper to call ->set_config |
2632 | * @set: modeset config to set |
||
2633 | * |
||
2634 | * This is a little helper to wrap internal calls to the ->set_config driver |
||
2635 | * interface. The only thing it adds is correct refcounting dance. |
||
5060 | serge | 2636 | * |
2637 | * Returns: |
||
5271 | serge | 2638 | * Zero on success, negative errno on failure. |
3480 | Serge | 2639 | */ |
2640 | int drm_mode_set_config_internal(struct drm_mode_set *set) |
||
2641 | { |
||
2642 | struct drm_crtc *crtc = set->crtc; |
||
4075 | Serge | 2643 | struct drm_framebuffer *fb; |
2644 | struct drm_crtc *tmp; |
||
3480 | Serge | 2645 | int ret; |
2646 | |||
4075 | Serge | 2647 | /* |
2648 | * NOTE: ->set_config can also disable other crtcs (if we steal all |
||
2649 | * connectors from it), hence we need to refcount the fbs across all |
||
2650 | * crtcs. Atomic modeset will have saner semantics ... |
||
2651 | */ |
||
6084 | serge | 2652 | drm_for_each_crtc(tmp, crtc->dev) |
5271 | serge | 2653 | tmp->primary->old_fb = tmp->primary->fb; |
4075 | Serge | 2654 | |
3480 | Serge | 2655 | fb = set->fb; |
2656 | |||
2657 | ret = crtc->funcs->set_config(set); |
||
2658 | if (ret == 0) { |
||
5060 | serge | 2659 | crtc->primary->crtc = crtc; |
2660 | crtc->primary->fb = fb; |
||
3480 | Serge | 2661 | } |
2662 | |||
6084 | serge | 2663 | drm_for_each_crtc(tmp, crtc->dev) { |
5060 | serge | 2664 | if (tmp->primary->fb) |
2665 | drm_framebuffer_reference(tmp->primary->fb); |
||
6283 | serge | 2666 | if (tmp->primary->old_fb) |
2667 | drm_framebuffer_unreference(tmp->primary->old_fb); |
||
2668 | tmp->primary->old_fb = NULL; |
||
4075 | Serge | 2669 | } |
2670 | |||
3480 | Serge | 2671 | return ret; |
2672 | } |
||
2673 | EXPORT_SYMBOL(drm_mode_set_config_internal); |
||
2674 | |||
5060 | serge | 2675 | /** |
6084 | serge | 2676 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode |
2677 | * @mode: mode to query |
||
2678 | * @hdisplay: hdisplay value to fill in |
||
2679 | * @vdisplay: vdisplay value to fill in |
||
2680 | * |
||
2681 | * The vdisplay value will be doubled if the specified mode is a stereo mode of |
||
2682 | * the appropriate layout. |
||
2683 | */ |
||
2684 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, |
||
2685 | int *hdisplay, int *vdisplay) |
||
2686 | { |
||
2687 | struct drm_display_mode adjusted; |
||
2688 | |||
2689 | drm_mode_copy(&adjusted, mode); |
||
2690 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); |
||
2691 | *hdisplay = adjusted.crtc_hdisplay; |
||
2692 | *vdisplay = adjusted.crtc_vdisplay; |
||
2693 | } |
||
2694 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); |
||
2695 | |||
2696 | /** |
||
5060 | serge | 2697 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the |
2698 | * CRTC viewport |
||
2699 | * @crtc: CRTC that framebuffer will be displayed on |
||
2700 | * @x: x panning |
||
2701 | * @y: y panning |
||
2702 | * @mode: mode that framebuffer will be displayed under |
||
2703 | * @fb: framebuffer to check size of |
||
4560 | Serge | 2704 | */ |
5060 | serge | 2705 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
6084 | serge | 2706 | int x, int y, |
2707 | const struct drm_display_mode *mode, |
||
2708 | const struct drm_framebuffer *fb) |
||
4560 | Serge | 2709 | |
2710 | { |
||
2711 | int hdisplay, vdisplay; |
||
2712 | |||
6084 | serge | 2713 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
4560 | Serge | 2714 | |
6084 | serge | 2715 | if (crtc->state && |
2716 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | |
||
2717 | BIT(DRM_ROTATE_270))) |
||
4560 | Serge | 2718 | swap(hdisplay, vdisplay); |
2719 | |||
6084 | serge | 2720 | return check_src_coords(x << 16, y << 16, |
2721 | hdisplay << 16, vdisplay << 16, fb); |
||
4560 | Serge | 2722 | } |
5060 | serge | 2723 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
4560 | Serge | 2724 | |
6084 | serge | 2725 | #if 0 |
3480 | Serge | 2726 | /** |
1123 | serge | 2727 | * drm_mode_setcrtc - set CRTC configuration |
3480 | Serge | 2728 | * @dev: drm device for the ioctl |
2729 | * @data: data pointer for the ioctl |
||
2730 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2731 | * |
2732 | * Build a new CRTC configuration based on user request. |
||
2733 | * |
||
2734 | * Called by the user via ioctl. |
||
2735 | * |
||
5060 | serge | 2736 | * Returns: |
5271 | serge | 2737 | * Zero on success, negative errno on failure. |
1123 | serge | 2738 | */ |
2739 | int drm_mode_setcrtc(struct drm_device *dev, void *data, |
||
2740 | struct drm_file *file_priv) |
||
2741 | { |
||
2742 | struct drm_mode_config *config = &dev->mode_config; |
||
2743 | struct drm_mode_crtc *crtc_req = data; |
||
3031 | serge | 2744 | struct drm_crtc *crtc; |
1123 | serge | 2745 | struct drm_connector **connector_set = NULL, *connector; |
2746 | struct drm_framebuffer *fb = NULL; |
||
2747 | struct drm_display_mode *mode = NULL; |
||
2748 | struct drm_mode_set set; |
||
2749 | uint32_t __user *set_connectors_ptr; |
||
3031 | serge | 2750 | int ret; |
1123 | serge | 2751 | int i; |
2752 | |||
1963 | serge | 2753 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2754 | return -EINVAL; |
||
2755 | |||
6084 | serge | 2756 | /* |
2757 | * Universal plane src offsets are only 16.16, prevent havoc for |
||
2758 | * drivers using universal plane code internally. |
||
2759 | */ |
||
2760 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) |
||
3031 | serge | 2761 | return -ERANGE; |
2762 | |||
3480 | Serge | 2763 | drm_modeset_lock_all(dev); |
5060 | serge | 2764 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2765 | if (!crtc) { |
||
1179 | serge | 2766 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
4560 | Serge | 2767 | ret = -ENOENT; |
1123 | serge | 2768 | goto out; |
2769 | } |
||
6937 | serge | 2770 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
1123 | serge | 2771 | |
2772 | if (crtc_req->mode_valid) { |
||
2773 | /* If we have a mode we need a framebuffer. */ |
||
2774 | /* If we pass -1, set the mode with the currently bound fb */ |
||
2775 | if (crtc_req->fb_id == -1) { |
||
5060 | serge | 2776 | if (!crtc->primary->fb) { |
3031 | serge | 2777 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2778 | ret = -EINVAL; |
||
2779 | goto out; |
||
2780 | } |
||
5060 | serge | 2781 | fb = crtc->primary->fb; |
3480 | Serge | 2782 | /* Make refcounting symmetric with the lookup path. */ |
2783 | drm_framebuffer_reference(fb); |
||
1123 | serge | 2784 | } else { |
3480 | Serge | 2785 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2786 | if (!fb) { |
||
1179 | serge | 2787 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2788 | crtc_req->fb_id); |
||
4560 | Serge | 2789 | ret = -ENOENT; |
1123 | serge | 2790 | goto out; |
2791 | } |
||
2792 | } |
||
2793 | |||
2794 | mode = drm_mode_create(dev); |
||
3031 | serge | 2795 | if (!mode) { |
2796 | ret = -ENOMEM; |
||
2797 | goto out; |
||
2798 | } |
||
2799 | |||
6084 | serge | 2800 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
3031 | serge | 2801 | if (ret) { |
2802 | DRM_DEBUG_KMS("Invalid mode\n"); |
||
2803 | goto out; |
||
2804 | } |
||
2805 | |||
6084 | serge | 2806 | /* |
2807 | * Check whether the primary plane supports the fb pixel format. |
||
2808 | * Drivers not implementing the universal planes API use a |
||
2809 | * default formats list provided by the DRM core which doesn't |
||
2810 | * match real hardware capabilities. Skip the check in that |
||
2811 | * case. |
||
2812 | */ |
||
2813 | if (!crtc->primary->format_default) { |
||
2814 | ret = drm_plane_check_pixel_format(crtc->primary, |
||
2815 | fb->pixel_format); |
||
2816 | if (ret) { |
||
2817 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
||
2818 | drm_get_format_name(fb->pixel_format)); |
||
2819 | goto out; |
||
2820 | } |
||
2821 | } |
||
2822 | |||
4560 | Serge | 2823 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2824 | mode, fb); |
||
2825 | if (ret) |
||
2826 | goto out; |
||
3031 | serge | 2827 | |
1123 | serge | 2828 | } |
2829 | |||
2830 | if (crtc_req->count_connectors == 0 && mode) { |
||
1179 | serge | 2831 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
1123 | serge | 2832 | ret = -EINVAL; |
2833 | goto out; |
||
2834 | } |
||
2835 | |||
1179 | serge | 2836 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
2837 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
||
1123 | serge | 2838 | crtc_req->count_connectors); |
2839 | ret = -EINVAL; |
||
2840 | goto out; |
||
2841 | } |
||
2842 | |||
2843 | if (crtc_req->count_connectors > 0) { |
||
2844 | u32 out_id; |
||
2845 | |||
2846 | /* Avoid unbounded kernel memory allocation */ |
||
2847 | if (crtc_req->count_connectors > config->num_connector) { |
||
2848 | ret = -EINVAL; |
||
2849 | goto out; |
||
2850 | } |
||
2851 | |||
6084 | serge | 2852 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2853 | sizeof(struct drm_connector *), |
||
2854 | GFP_KERNEL); |
||
1123 | serge | 2855 | if (!connector_set) { |
2856 | ret = -ENOMEM; |
||
2857 | goto out; |
||
2858 | } |
||
2859 | |||
2860 | for (i = 0; i < crtc_req->count_connectors; i++) { |
||
3031 | serge | 2861 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
6660 | serge | 2862 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2863 | ret = -EFAULT; |
||
2864 | goto out; |
||
2865 | } |
||
1123 | serge | 2866 | |
5060 | serge | 2867 | connector = drm_connector_find(dev, out_id); |
2868 | if (!connector) { |
||
1179 | serge | 2869 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2870 | out_id); |
||
4560 | Serge | 2871 | ret = -ENOENT; |
1123 | serge | 2872 | goto out; |
2873 | } |
||
1963 | serge | 2874 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2875 | connector->base.id, |
||
5060 | serge | 2876 | connector->name); |
1123 | serge | 2877 | |
2878 | connector_set[i] = connector; |
||
2879 | } |
||
2880 | } |
||
2881 | |||
2882 | set.crtc = crtc; |
||
2883 | set.x = crtc_req->x; |
||
2884 | set.y = crtc_req->y; |
||
2885 | set.mode = mode; |
||
2886 | set.connectors = connector_set; |
||
2887 | set.num_connectors = crtc_req->count_connectors; |
||
1179 | serge | 2888 | set.fb = fb; |
3480 | Serge | 2889 | ret = drm_mode_set_config_internal(&set); |
1123 | serge | 2890 | |
2891 | out: |
||
3480 | Serge | 2892 | if (fb) |
2893 | drm_framebuffer_unreference(fb); |
||
2894 | |||
1123 | serge | 2895 | kfree(connector_set); |
3031 | serge | 2896 | drm_mode_destroy(dev, mode); |
3480 | Serge | 2897 | drm_modeset_unlock_all(dev); |
1123 | serge | 2898 | return ret; |
2899 | } |
||
2900 | |||
4075 | Serge | 2901 | static int drm_mode_cursor_common(struct drm_device *dev, |
2902 | struct drm_mode_cursor2 *req, |
||
2903 | struct drm_file *file_priv) |
||
1123 | serge | 2904 | { |
2905 | struct drm_crtc *crtc; |
||
2906 | int ret = 0; |
||
2907 | |||
1963 | serge | 2908 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2909 | return -EINVAL; |
||
2910 | |||
3031 | serge | 2911 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
1123 | serge | 2912 | return -EINVAL; |
2913 | |||
5060 | serge | 2914 | crtc = drm_crtc_find(dev, req->crtc_id); |
2915 | if (!crtc) { |
||
1179 | serge | 2916 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
4560 | Serge | 2917 | return -ENOENT; |
1123 | serge | 2918 | } |
2919 | |||
5060 | serge | 2920 | /* |
2921 | * If this crtc has a universal cursor plane, call that plane's update |
||
2922 | * handler rather than using legacy cursor handlers. |
||
2923 | */ |
||
5271 | serge | 2924 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
2925 | if (crtc->cursor) { |
||
2926 | ret = drm_mode_cursor_universal(crtc, req, file_priv); |
||
2927 | goto out; |
||
2928 | } |
||
5060 | serge | 2929 | |
1123 | serge | 2930 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4075 | Serge | 2931 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
1123 | serge | 2932 | ret = -ENXIO; |
2933 | goto out; |
||
2934 | } |
||
2935 | /* Turns off the cursor if handle is 0 */ |
||
4075 | Serge | 2936 | if (crtc->funcs->cursor_set2) |
2937 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, |
||
2938 | req->width, req->height, req->hot_x, req->hot_y); |
||
2939 | else |
||
6084 | serge | 2940 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
2941 | req->width, req->height); |
||
1123 | serge | 2942 | } |
2943 | |||
2944 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
||
2945 | if (crtc->funcs->cursor_move) { |
||
2946 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
||
2947 | } else { |
||
2948 | ret = -EFAULT; |
||
2949 | goto out; |
||
2950 | } |
||
2951 | } |
||
2952 | out: |
||
5271 | serge | 2953 | drm_modeset_unlock_crtc(crtc); |
3480 | Serge | 2954 | |
1123 | serge | 2955 | return ret; |
4075 | Serge | 2956 | |
1123 | serge | 2957 | } |
5060 | serge | 2958 | |
2959 | |||
2960 | /** |
||
2961 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration |
||
2962 | * @dev: drm device for the ioctl |
||
2963 | * @data: data pointer for the ioctl |
||
2964 | * @file_priv: drm file for the ioctl call |
||
2965 | * |
||
2966 | * Set the cursor configuration based on user request. |
||
2967 | * |
||
2968 | * Called by the user via ioctl. |
||
2969 | * |
||
2970 | * Returns: |
||
5271 | serge | 2971 | * Zero on success, negative errno on failure. |
5060 | serge | 2972 | */ |
4075 | Serge | 2973 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
6084 | serge | 2974 | void *data, struct drm_file *file_priv) |
4075 | Serge | 2975 | { |
2976 | struct drm_mode_cursor *req = data; |
||
2977 | struct drm_mode_cursor2 new_req; |
||
2978 | |||
2979 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); |
||
2980 | new_req.hot_x = new_req.hot_y = 0; |
||
2981 | |||
2982 | return drm_mode_cursor_common(dev, &new_req, file_priv); |
||
2983 | } |
||
2984 | |||
5060 | serge | 2985 | /** |
2986 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration |
||
2987 | * @dev: drm device for the ioctl |
||
2988 | * @data: data pointer for the ioctl |
||
2989 | * @file_priv: drm file for the ioctl call |
||
2990 | * |
||
2991 | * Set the cursor configuration based on user request. This implements the 2nd |
||
2992 | * version of the cursor ioctl, which allows userspace to additionally specify |
||
2993 | * the hotspot of the pointer. |
||
2994 | * |
||
2995 | * Called by the user via ioctl. |
||
2996 | * |
||
2997 | * Returns: |
||
5271 | serge | 2998 | * Zero on success, negative errno on failure. |
5060 | serge | 2999 | */ |
4075 | Serge | 3000 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3001 | void *data, struct drm_file *file_priv) |
||
3002 | { |
||
3003 | struct drm_mode_cursor2 *req = data; |
||
6084 | serge | 3004 | |
4075 | Serge | 3005 | return drm_mode_cursor_common(dev, req, file_priv); |
3006 | } |
||
3031 | serge | 3007 | #endif |
4560 | Serge | 3008 | |
5060 | serge | 3009 | /** |
3010 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description |
||
3011 | * @bpp: bits per pixels |
||
3012 | * @depth: bit depth per pixel |
||
3013 | * |
||
3014 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. |
||
3015 | * Useful in fbdev emulation code, since that deals in those values. |
||
3016 | */ |
||
3031 | serge | 3017 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3018 | { |
||
3019 | uint32_t fmt; |
||
1123 | serge | 3020 | |
3031 | serge | 3021 | switch (bpp) { |
3022 | case 8: |
||
3480 | Serge | 3023 | fmt = DRM_FORMAT_C8; |
3031 | serge | 3024 | break; |
3025 | case 16: |
||
3026 | if (depth == 15) |
||
3027 | fmt = DRM_FORMAT_XRGB1555; |
||
3028 | else |
||
3029 | fmt = DRM_FORMAT_RGB565; |
||
3030 | break; |
||
3031 | case 24: |
||
3032 | fmt = DRM_FORMAT_RGB888; |
||
3033 | break; |
||
3034 | case 32: |
||
3035 | if (depth == 24) |
||
3036 | fmt = DRM_FORMAT_XRGB8888; |
||
3037 | else if (depth == 30) |
||
3038 | fmt = DRM_FORMAT_XRGB2101010; |
||
3039 | else |
||
3040 | fmt = DRM_FORMAT_ARGB8888; |
||
3041 | break; |
||
3042 | default: |
||
3043 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
||
3044 | fmt = DRM_FORMAT_XRGB8888; |
||
3045 | break; |
||
3046 | } |
||
3047 | |||
3048 | return fmt; |
||
3049 | } |
||
3050 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); |
||
3051 | #if 0 |
||
1123 | serge | 3052 | /** |
3053 | * drm_mode_addfb - add an FB to the graphics configuration |
||
3480 | Serge | 3054 | * @dev: drm device for the ioctl |
3055 | * @data: data pointer for the ioctl |
||
3056 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3057 | * |
5060 | serge | 3058 | * Add a new FB to the specified CRTC, given a user request. This is the |
5271 | serge | 3059 | * original addfb ioctl which only supported RGB formats. |
1123 | serge | 3060 | * |
3061 | * Called by the user via ioctl. |
||
3062 | * |
||
5060 | serge | 3063 | * Returns: |
5271 | serge | 3064 | * Zero on success, negative errno on failure. |
1123 | serge | 3065 | */ |
3066 | int drm_mode_addfb(struct drm_device *dev, |
||
3067 | void *data, struct drm_file *file_priv) |
||
3068 | { |
||
3031 | serge | 3069 | struct drm_mode_fb_cmd *or = data; |
3070 | struct drm_mode_fb_cmd2 r = {}; |
||
5271 | serge | 3071 | int ret; |
1123 | serge | 3072 | |
5271 | serge | 3073 | /* convert to new format and call new ioctl */ |
3031 | serge | 3074 | r.fb_id = or->fb_id; |
3075 | r.width = or->width; |
||
3076 | r.height = or->height; |
||
3077 | r.pitches[0] = or->pitch; |
||
3078 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); |
||
3079 | r.handles[0] = or->handle; |
||
3080 | |||
5271 | serge | 3081 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3082 | if (ret) |
||
3083 | return ret; |
||
1963 | serge | 3084 | |
5271 | serge | 3085 | or->fb_id = r.fb_id; |
3031 | serge | 3086 | |
5271 | serge | 3087 | return 0; |
3031 | serge | 3088 | } |
3089 | |||
3090 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
||
3091 | { |
||
3092 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; |
||
3093 | |||
3094 | switch (format) { |
||
3095 | case DRM_FORMAT_C8: |
||
3096 | case DRM_FORMAT_RGB332: |
||
3097 | case DRM_FORMAT_BGR233: |
||
3098 | case DRM_FORMAT_XRGB4444: |
||
3099 | case DRM_FORMAT_XBGR4444: |
||
3100 | case DRM_FORMAT_RGBX4444: |
||
3101 | case DRM_FORMAT_BGRX4444: |
||
3102 | case DRM_FORMAT_ARGB4444: |
||
3103 | case DRM_FORMAT_ABGR4444: |
||
3104 | case DRM_FORMAT_RGBA4444: |
||
3105 | case DRM_FORMAT_BGRA4444: |
||
3106 | case DRM_FORMAT_XRGB1555: |
||
3107 | case DRM_FORMAT_XBGR1555: |
||
3108 | case DRM_FORMAT_RGBX5551: |
||
3109 | case DRM_FORMAT_BGRX5551: |
||
3110 | case DRM_FORMAT_ARGB1555: |
||
3111 | case DRM_FORMAT_ABGR1555: |
||
3112 | case DRM_FORMAT_RGBA5551: |
||
3113 | case DRM_FORMAT_BGRA5551: |
||
3114 | case DRM_FORMAT_RGB565: |
||
3115 | case DRM_FORMAT_BGR565: |
||
3116 | case DRM_FORMAT_RGB888: |
||
3117 | case DRM_FORMAT_BGR888: |
||
3118 | case DRM_FORMAT_XRGB8888: |
||
3119 | case DRM_FORMAT_XBGR8888: |
||
3120 | case DRM_FORMAT_RGBX8888: |
||
3121 | case DRM_FORMAT_BGRX8888: |
||
3122 | case DRM_FORMAT_ARGB8888: |
||
3123 | case DRM_FORMAT_ABGR8888: |
||
3124 | case DRM_FORMAT_RGBA8888: |
||
3125 | case DRM_FORMAT_BGRA8888: |
||
3126 | case DRM_FORMAT_XRGB2101010: |
||
3127 | case DRM_FORMAT_XBGR2101010: |
||
3128 | case DRM_FORMAT_RGBX1010102: |
||
3129 | case DRM_FORMAT_BGRX1010102: |
||
3130 | case DRM_FORMAT_ARGB2101010: |
||
3131 | case DRM_FORMAT_ABGR2101010: |
||
3132 | case DRM_FORMAT_RGBA1010102: |
||
3133 | case DRM_FORMAT_BGRA1010102: |
||
3134 | case DRM_FORMAT_YUYV: |
||
3135 | case DRM_FORMAT_YVYU: |
||
3136 | case DRM_FORMAT_UYVY: |
||
3137 | case DRM_FORMAT_VYUY: |
||
3138 | case DRM_FORMAT_AYUV: |
||
3139 | case DRM_FORMAT_NV12: |
||
3140 | case DRM_FORMAT_NV21: |
||
3141 | case DRM_FORMAT_NV16: |
||
3142 | case DRM_FORMAT_NV61: |
||
3143 | case DRM_FORMAT_NV24: |
||
3144 | case DRM_FORMAT_NV42: |
||
3145 | case DRM_FORMAT_YUV410: |
||
3146 | case DRM_FORMAT_YVU410: |
||
3147 | case DRM_FORMAT_YUV411: |
||
3148 | case DRM_FORMAT_YVU411: |
||
3149 | case DRM_FORMAT_YUV420: |
||
3150 | case DRM_FORMAT_YVU420: |
||
3151 | case DRM_FORMAT_YUV422: |
||
3152 | case DRM_FORMAT_YVU422: |
||
3153 | case DRM_FORMAT_YUV444: |
||
3154 | case DRM_FORMAT_YVU444: |
||
3155 | return 0; |
||
3156 | default: |
||
4560 | Serge | 3157 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3158 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 3159 | return -EINVAL; |
3160 | } |
||
3161 | } |
||
3162 | |||
3163 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
||
3164 | { |
||
3165 | int ret, hsub, vsub, num_planes, i; |
||
3166 | |||
3167 | ret = format_check(r); |
||
3168 | if (ret) { |
||
4075 | Serge | 3169 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3170 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 3171 | return ret; |
3172 | } |
||
3173 | |||
3174 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); |
||
3175 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); |
||
3176 | num_planes = drm_format_num_planes(r->pixel_format); |
||
3177 | |||
3178 | if (r->width == 0 || r->width % hsub) { |
||
5271 | serge | 3179 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
3031 | serge | 3180 | return -EINVAL; |
3181 | } |
||
3182 | |||
3183 | if (r->height == 0 || r->height % vsub) { |
||
3184 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
||
3185 | return -EINVAL; |
||
3186 | } |
||
3187 | |||
3188 | for (i = 0; i < num_planes; i++) { |
||
3189 | unsigned int width = r->width / (i != 0 ? hsub : 1); |
||
3192 | Serge | 3190 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3191 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); |
||
3031 | serge | 3192 | |
3193 | if (!r->handles[i]) { |
||
3194 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
||
3195 | return -EINVAL; |
||
3196 | } |
||
3197 | |||
3192 | Serge | 3198 | if ((uint64_t) width * cpp > UINT_MAX) |
3199 | return -ERANGE; |
||
3200 | |||
3201 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) |
||
3202 | return -ERANGE; |
||
3203 | |||
3204 | if (r->pitches[i] < width * cpp) { |
||
3031 | serge | 3205 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
3206 | return -EINVAL; |
||
3207 | } |
||
6084 | serge | 3208 | |
3209 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { |
||
3210 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", |
||
3211 | r->modifier[i], i); |
||
3212 | return -EINVAL; |
||
3213 | } |
||
3214 | |||
3215 | /* modifier specific checks: */ |
||
3216 | switch (r->modifier[i]) { |
||
3217 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: |
||
3218 | /* NOTE: the pitch restriction may be lifted later if it turns |
||
3219 | * out that no hw has this restriction: |
||
3220 | */ |
||
3221 | if (r->pixel_format != DRM_FORMAT_NV12 || |
||
3222 | width % 128 || height % 32 || |
||
3223 | r->pitches[i] % 128) { |
||
3224 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); |
||
3225 | return -EINVAL; |
||
3226 | } |
||
3227 | break; |
||
3228 | |||
3229 | default: |
||
3230 | break; |
||
3231 | } |
||
3031 | serge | 3232 | } |
3233 | |||
6084 | serge | 3234 | for (i = num_planes; i < 4; i++) { |
3235 | if (r->modifier[i]) { |
||
3236 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); |
||
3237 | return -EINVAL; |
||
3238 | } |
||
3239 | |||
3240 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ |
||
3241 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) |
||
3242 | continue; |
||
3243 | |||
3244 | if (r->handles[i]) { |
||
3245 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); |
||
3246 | return -EINVAL; |
||
3247 | } |
||
3248 | |||
3249 | if (r->pitches[i]) { |
||
3250 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); |
||
3251 | return -EINVAL; |
||
3252 | } |
||
3253 | |||
3254 | if (r->offsets[i]) { |
||
3255 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); |
||
3256 | return -EINVAL; |
||
3257 | } |
||
3258 | } |
||
3259 | |||
3031 | serge | 3260 | return 0; |
3261 | } |
||
3262 | |||
6084 | serge | 3263 | static struct drm_framebuffer * |
3264 | internal_framebuffer_create(struct drm_device *dev, |
||
6937 | serge | 3265 | const struct drm_mode_fb_cmd2 *r, |
6084 | serge | 3266 | struct drm_file *file_priv) |
3031 | serge | 3267 | { |
3268 | struct drm_mode_config *config = &dev->mode_config; |
||
3269 | struct drm_framebuffer *fb; |
||
3270 | int ret; |
||
3271 | |||
6084 | serge | 3272 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
3192 | Serge | 3273 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
5060 | serge | 3274 | return ERR_PTR(-EINVAL); |
3192 | Serge | 3275 | } |
3276 | |||
1123 | serge | 3277 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
3031 | serge | 3278 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
3279 | r->width, config->min_width, config->max_width); |
||
5060 | serge | 3280 | return ERR_PTR(-EINVAL); |
1123 | serge | 3281 | } |
3282 | if ((config->min_height > r->height) || (r->height > config->max_height)) { |
||
3031 | serge | 3283 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
3284 | r->height, config->min_height, config->max_height); |
||
5060 | serge | 3285 | return ERR_PTR(-EINVAL); |
1123 | serge | 3286 | } |
3287 | |||
6084 | serge | 3288 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3289 | !dev->mode_config.allow_fb_modifiers) { |
||
3290 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); |
||
3291 | return ERR_PTR(-EINVAL); |
||
3292 | } |
||
3293 | |||
3031 | serge | 3294 | ret = framebuffer_check(r); |
3295 | if (ret) |
||
5060 | serge | 3296 | return ERR_PTR(ret); |
3031 | serge | 3297 | |
1123 | serge | 3298 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
1963 | serge | 3299 | if (IS_ERR(fb)) { |
3031 | serge | 3300 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
5060 | serge | 3301 | return fb; |
1123 | serge | 3302 | } |
3303 | |||
5060 | serge | 3304 | return fb; |
3305 | } |
||
3480 | Serge | 3306 | |
5060 | serge | 3307 | /** |
3308 | * drm_mode_addfb2 - add an FB to the graphics configuration |
||
3309 | * @dev: drm device for the ioctl |
||
3310 | * @data: data pointer for the ioctl |
||
3311 | * @file_priv: drm file for the ioctl call |
||
3312 | * |
||
3313 | * Add a new FB to the specified CRTC, given a user request with format. This is |
||
3314 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers |
||
3315 | * and uses fourcc codes as pixel format specifiers. |
||
3316 | * |
||
3317 | * Called by the user via ioctl. |
||
3318 | * |
||
3319 | * Returns: |
||
5271 | serge | 3320 | * Zero on success, negative errno on failure. |
5060 | serge | 3321 | */ |
3322 | int drm_mode_addfb2(struct drm_device *dev, |
||
3323 | void *data, struct drm_file *file_priv) |
||
3324 | { |
||
6084 | serge | 3325 | struct drm_mode_fb_cmd2 *r = data; |
5060 | serge | 3326 | struct drm_framebuffer *fb; |
3327 | |||
3328 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
3329 | return -EINVAL; |
||
3330 | |||
6084 | serge | 3331 | fb = internal_framebuffer_create(dev, r, file_priv); |
5060 | serge | 3332 | if (IS_ERR(fb)) |
3333 | return PTR_ERR(fb); |
||
3334 | |||
6084 | serge | 3335 | /* Transfer ownership to the filp for reaping on close */ |
3336 | |||
3337 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
||
3338 | mutex_lock(&file_priv->fbs_lock); |
||
3339 | r->fb_id = fb->base.id; |
||
3340 | list_add(&fb->filp_head, &file_priv->fbs); |
||
3341 | mutex_unlock(&file_priv->fbs_lock); |
||
3342 | |||
5060 | serge | 3343 | return 0; |
1123 | serge | 3344 | } |
3345 | |||
7144 | serge | 3346 | struct drm_mode_rmfb_work { |
3347 | struct work_struct work; |
||
3348 | struct list_head fbs; |
||
3349 | }; |
||
3350 | |||
3351 | static void drm_mode_rmfb_work_fn(struct work_struct *w) |
||
3352 | { |
||
3353 | struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work); |
||
3354 | |||
3355 | while (!list_empty(&arg->fbs)) { |
||
3356 | struct drm_framebuffer *fb = |
||
3357 | list_first_entry(&arg->fbs, typeof(*fb), filp_head); |
||
3358 | |||
3359 | list_del_init(&fb->filp_head); |
||
3360 | drm_framebuffer_remove(fb); |
||
3361 | } |
||
3362 | } |
||
3363 | |||
1123 | serge | 3364 | /** |
3365 | * drm_mode_rmfb - remove an FB from the configuration |
||
3480 | Serge | 3366 | * @dev: drm device for the ioctl |
3367 | * @data: data pointer for the ioctl |
||
3368 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3369 | * |
3370 | * Remove the FB specified by the user. |
||
3371 | * |
||
3372 | * Called by the user via ioctl. |
||
3373 | * |
||
5060 | serge | 3374 | * Returns: |
5271 | serge | 3375 | * Zero on success, negative errno on failure. |
1123 | serge | 3376 | */ |
3377 | int drm_mode_rmfb(struct drm_device *dev, |
||
3378 | void *data, struct drm_file *file_priv) |
||
3379 | { |
||
3380 | struct drm_framebuffer *fb = NULL; |
||
3381 | struct drm_framebuffer *fbl = NULL; |
||
3382 | uint32_t *id = data; |
||
3383 | int found = 0; |
||
3384 | |||
1963 | serge | 3385 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3386 | return -EINVAL; |
||
3387 | |||
3480 | Serge | 3388 | mutex_lock(&file_priv->fbs_lock); |
3389 | mutex_lock(&dev->mode_config.fb_lock); |
||
3390 | fb = __drm_framebuffer_lookup(dev, *id); |
||
3391 | if (!fb) |
||
3392 | goto fail_lookup; |
||
1123 | serge | 3393 | |
3394 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
||
3395 | if (fb == fbl) |
||
3396 | found = 1; |
||
3480 | Serge | 3397 | if (!found) |
3398 | goto fail_lookup; |
||
1123 | serge | 3399 | |
3480 | Serge | 3400 | list_del_init(&fb->filp_head); |
3401 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3402 | mutex_unlock(&file_priv->fbs_lock); |
||
3403 | |||
6084 | serge | 3404 | drm_framebuffer_unreference(fb); |
1123 | serge | 3405 | |
3480 | Serge | 3406 | return 0; |
3407 | |||
3408 | fail_lookup: |
||
3409 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3410 | mutex_unlock(&file_priv->fbs_lock); |
||
3411 | |||
4560 | Serge | 3412 | return -ENOENT; |
1123 | serge | 3413 | } |
3414 | |||
3415 | /** |
||
3416 | * drm_mode_getfb - get FB info |
||
3480 | Serge | 3417 | * @dev: drm device for the ioctl |
3418 | * @data: data pointer for the ioctl |
||
3419 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3420 | * |
3421 | * Lookup the FB given its ID and return info about it. |
||
3422 | * |
||
3423 | * Called by the user via ioctl. |
||
3424 | * |
||
5060 | serge | 3425 | * Returns: |
5271 | serge | 3426 | * Zero on success, negative errno on failure. |
1123 | serge | 3427 | */ |
3428 | int drm_mode_getfb(struct drm_device *dev, |
||
3429 | void *data, struct drm_file *file_priv) |
||
3430 | { |
||
3431 | struct drm_mode_fb_cmd *r = data; |
||
3432 | struct drm_framebuffer *fb; |
||
3480 | Serge | 3433 | int ret; |
1123 | serge | 3434 | |
1963 | serge | 3435 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3436 | return -EINVAL; |
||
3437 | |||
3480 | Serge | 3438 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3439 | if (!fb) |
||
4560 | Serge | 3440 | return -ENOENT; |
1123 | serge | 3441 | |
3442 | r->height = fb->height; |
||
3443 | r->width = fb->width; |
||
3444 | r->depth = fb->depth; |
||
3445 | r->bpp = fb->bits_per_pixel; |
||
3031 | serge | 3446 | r->pitch = fb->pitches[0]; |
4104 | Serge | 3447 | if (fb->funcs->create_handle) { |
5271 | serge | 3448 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
3449 | drm_is_control_client(file_priv)) { |
||
4104 | Serge | 3450 | ret = fb->funcs->create_handle(fb, file_priv, |
3451 | &r->handle); |
||
3452 | } else { |
||
3453 | /* GET_FB() is an unprivileged ioctl so we must not |
||
3454 | * return a buffer-handle to non-master processes! For |
||
3455 | * backwards-compatibility reasons, we cannot make |
||
3456 | * GET_FB() privileged, so just return an invalid handle |
||
3457 | * for non-masters. */ |
||
3458 | r->handle = 0; |
||
3459 | ret = 0; |
||
3460 | } |
||
3461 | } else { |
||
3480 | Serge | 3462 | ret = -ENODEV; |
4104 | Serge | 3463 | } |
1123 | serge | 3464 | |
3480 | Serge | 3465 | drm_framebuffer_unreference(fb); |
3466 | |||
1123 | serge | 3467 | return ret; |
3468 | } |
||
3469 | |||
5060 | serge | 3470 | /** |
3471 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB |
||
3472 | * @dev: drm device for the ioctl |
||
3473 | * @data: data pointer for the ioctl |
||
3474 | * @file_priv: drm file for the ioctl call |
||
3475 | * |
||
3476 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip |
||
3477 | * rectangle list. Generic userspace which does frontbuffer rendering must call |
||
3478 | * this ioctl to flush out the changes on manual-update display outputs, e.g. |
||
3479 | * usb display-link, mipi manual update panels or edp panel self refresh modes. |
||
3480 | * |
||
3481 | * Modesetting drivers which always update the frontbuffer do not need to |
||
3482 | * implement the corresponding ->dirty framebuffer callback. |
||
3483 | * |
||
3484 | * Called by the user via ioctl. |
||
3485 | * |
||
3486 | * Returns: |
||
5271 | serge | 3487 | * Zero on success, negative errno on failure. |
5060 | serge | 3488 | */ |
1412 | serge | 3489 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3490 | void *data, struct drm_file *file_priv) |
||
3491 | { |
||
3492 | struct drm_clip_rect __user *clips_ptr; |
||
3493 | struct drm_clip_rect *clips = NULL; |
||
3494 | struct drm_mode_fb_dirty_cmd *r = data; |
||
3495 | struct drm_framebuffer *fb; |
||
3496 | unsigned flags; |
||
3497 | int num_clips; |
||
3031 | serge | 3498 | int ret; |
1412 | serge | 3499 | |
1963 | serge | 3500 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3501 | return -EINVAL; |
||
3502 | |||
3480 | Serge | 3503 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3504 | if (!fb) |
||
4560 | Serge | 3505 | return -ENOENT; |
1412 | serge | 3506 | |
3507 | num_clips = r->num_clips; |
||
3031 | serge | 3508 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
1412 | serge | 3509 | |
3510 | if (!num_clips != !clips_ptr) { |
||
3511 | ret = -EINVAL; |
||
3512 | goto out_err1; |
||
3513 | } |
||
3514 | |||
3515 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; |
||
3516 | |||
3517 | /* If userspace annotates copy, clips must come in pairs */ |
||
3518 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { |
||
3519 | ret = -EINVAL; |
||
3520 | goto out_err1; |
||
3521 | } |
||
3522 | |||
3523 | if (num_clips && clips_ptr) { |
||
3031 | serge | 3524 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3525 | ret = -EINVAL; |
||
3526 | goto out_err1; |
||
3527 | } |
||
6084 | serge | 3528 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
1412 | serge | 3529 | if (!clips) { |
3530 | ret = -ENOMEM; |
||
3531 | goto out_err1; |
||
3532 | } |
||
3533 | |||
3534 | ret = copy_from_user(clips, clips_ptr, |
||
3535 | num_clips * sizeof(*clips)); |
||
1963 | serge | 3536 | if (ret) { |
3537 | ret = -EFAULT; |
||
1412 | serge | 3538 | goto out_err2; |
6084 | serge | 3539 | } |
1412 | serge | 3540 | } |
3541 | |||
3542 | if (fb->funcs->dirty) { |
||
1963 | serge | 3543 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3544 | clips, num_clips); |
||
1412 | serge | 3545 | } else { |
3546 | ret = -ENOSYS; |
||
3547 | } |
||
3548 | |||
3549 | out_err2: |
||
3550 | kfree(clips); |
||
3551 | out_err1: |
||
3480 | Serge | 3552 | drm_framebuffer_unreference(fb); |
3553 | |||
1412 | serge | 3554 | return ret; |
3555 | } |
||
3556 | |||
1123 | serge | 3557 | /** |
3558 | * drm_fb_release - remove and free the FBs on this file |
||
3480 | Serge | 3559 | * @priv: drm file for the ioctl |
1123 | serge | 3560 | * |
3561 | * Destroy all the FBs associated with @filp. |
||
3562 | * |
||
3563 | * Called by the user via ioctl. |
||
3564 | * |
||
5060 | serge | 3565 | * Returns: |
5271 | serge | 3566 | * Zero on success, negative errno on failure. |
1123 | serge | 3567 | */ |
3568 | void drm_fb_release(struct drm_file *priv) |
||
3569 | { |
||
3570 | struct drm_framebuffer *fb, *tfb; |
||
3571 | |||
5271 | serge | 3572 | /* |
3573 | * When the file gets released that means no one else can access the fb |
||
3574 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
||
3575 | * avoid upsetting lockdep since the universal cursor code adds a |
||
3576 | * framebuffer while holding mutex locks. |
||
3577 | * |
||
3578 | * Note that a real deadlock between fpriv->fbs_lock and the modeset |
||
3579 | * locks is impossible here since no one else but this function can get |
||
3580 | * at it any more. |
||
3581 | */ |
||
1123 | serge | 3582 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
3480 | Serge | 3583 | list_del_init(&fb->filp_head); |
3584 | |||
6084 | serge | 3585 | /* This drops the fpriv->fbs reference. */ |
3586 | drm_framebuffer_unreference(fb); |
||
1123 | serge | 3587 | } |
3588 | } |
||
3589 | #endif |
||
3590 | |||
3591 | |||
5060 | serge | 3592 | /** |
3593 | * drm_property_create - create a new property type |
||
3594 | * @dev: drm device |
||
3595 | * @flags: flags specifying the property type |
||
3596 | * @name: name of the property |
||
3597 | * @num_values: number of pre-defined values |
||
3598 | * |
||
3599 | * This creates a new generic drm property which can then be attached to a drm |
||
3600 | * object with drm_object_attach_property. The returned property object must be |
||
3601 | * freed with drm_property_destroy. |
||
3602 | * |
||
5271 | serge | 3603 | * Note that the DRM core keeps a per-device list of properties and that, if |
3604 | * drm_mode_config_cleanup() is called, it will destroy all properties created |
||
3605 | * by the driver. |
||
3606 | * |
||
5060 | serge | 3607 | * Returns: |
3608 | * A pointer to the newly created property on success, NULL on failure. |
||
3609 | */ |
||
1123 | serge | 3610 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3611 | const char *name, int num_values) |
||
3612 | { |
||
3613 | struct drm_property *property = NULL; |
||
3031 | serge | 3614 | int ret; |
1123 | serge | 3615 | |
3616 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
||
3617 | if (!property) |
||
3618 | return NULL; |
||
3619 | |||
5060 | serge | 3620 | property->dev = dev; |
3621 | |||
1123 | serge | 3622 | if (num_values) { |
6084 | serge | 3623 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3624 | GFP_KERNEL); |
||
1123 | serge | 3625 | if (!property->values) |
3626 | goto fail; |
||
3627 | } |
||
3628 | |||
3031 | serge | 3629 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3630 | if (ret) |
||
3631 | goto fail; |
||
3632 | |||
1123 | serge | 3633 | property->flags = flags; |
3634 | property->num_values = num_values; |
||
5271 | serge | 3635 | INIT_LIST_HEAD(&property->enum_list); |
1123 | serge | 3636 | |
3031 | serge | 3637 | if (name) { |
1123 | serge | 3638 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
3031 | serge | 3639 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3640 | } |
||
1123 | serge | 3641 | |
3642 | list_add_tail(&property->head, &dev->mode_config.property_list); |
||
5060 | serge | 3643 | |
3644 | WARN_ON(!drm_property_type_valid(property)); |
||
3645 | |||
1123 | serge | 3646 | return property; |
3647 | fail: |
||
3031 | serge | 3648 | kfree(property->values); |
1123 | serge | 3649 | kfree(property); |
3650 | return NULL; |
||
3651 | } |
||
3652 | EXPORT_SYMBOL(drm_property_create); |
||
3653 | |||
5060 | serge | 3654 | /** |
3655 | * drm_property_create_enum - create a new enumeration property type |
||
3656 | * @dev: drm device |
||
3657 | * @flags: flags specifying the property type |
||
3658 | * @name: name of the property |
||
3659 | * @props: enumeration lists with property values |
||
3660 | * @num_values: number of pre-defined values |
||
3661 | * |
||
3662 | * This creates a new generic drm property which can then be attached to a drm |
||
3663 | * object with drm_object_attach_property. The returned property object must be |
||
3664 | * freed with drm_property_destroy. |
||
3665 | * |
||
3666 | * Userspace is only allowed to set one of the predefined values for enumeration |
||
3667 | * properties. |
||
3668 | * |
||
3669 | * Returns: |
||
3670 | * A pointer to the newly created property on success, NULL on failure. |
||
3671 | */ |
||
3031 | serge | 3672 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3673 | const char *name, |
||
3674 | const struct drm_prop_enum_list *props, |
||
3675 | int num_values) |
||
3676 | { |
||
3677 | struct drm_property *property; |
||
3678 | int i, ret; |
||
3679 | |||
3680 | flags |= DRM_MODE_PROP_ENUM; |
||
3681 | |||
3682 | property = drm_property_create(dev, flags, name, num_values); |
||
3683 | if (!property) |
||
3684 | return NULL; |
||
3685 | |||
3686 | for (i = 0; i < num_values; i++) { |
||
3687 | ret = drm_property_add_enum(property, i, |
||
3688 | props[i].type, |
||
3689 | props[i].name); |
||
3690 | if (ret) { |
||
3691 | drm_property_destroy(dev, property); |
||
3692 | return NULL; |
||
3693 | } |
||
3694 | } |
||
3695 | |||
3696 | return property; |
||
3697 | } |
||
3698 | EXPORT_SYMBOL(drm_property_create_enum); |
||
3699 | |||
5060 | serge | 3700 | /** |
3701 | * drm_property_create_bitmask - create a new bitmask property type |
||
3702 | * @dev: drm device |
||
3703 | * @flags: flags specifying the property type |
||
3704 | * @name: name of the property |
||
3705 | * @props: enumeration lists with property bitflags |
||
5271 | serge | 3706 | * @num_props: size of the @props array |
3707 | * @supported_bits: bitmask of all supported enumeration values |
||
5060 | serge | 3708 | * |
5271 | serge | 3709 | * This creates a new bitmask drm property which can then be attached to a drm |
5060 | serge | 3710 | * object with drm_object_attach_property. The returned property object must be |
3711 | * freed with drm_property_destroy. |
||
3712 | * |
||
3713 | * Compared to plain enumeration properties userspace is allowed to set any |
||
3714 | * or'ed together combination of the predefined property bitflag values |
||
3715 | * |
||
3716 | * Returns: |
||
3717 | * A pointer to the newly created property on success, NULL on failure. |
||
3718 | */ |
||
3031 | serge | 3719 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3720 | int flags, const char *name, |
||
3721 | const struct drm_prop_enum_list *props, |
||
5060 | serge | 3722 | int num_props, |
3723 | uint64_t supported_bits) |
||
3031 | serge | 3724 | { |
3725 | struct drm_property *property; |
||
5060 | serge | 3726 | int i, ret, index = 0; |
3727 | int num_values = hweight64(supported_bits); |
||
3031 | serge | 3728 | |
3729 | flags |= DRM_MODE_PROP_BITMASK; |
||
3730 | |||
3731 | property = drm_property_create(dev, flags, name, num_values); |
||
3732 | if (!property) |
||
3733 | return NULL; |
||
5060 | serge | 3734 | for (i = 0; i < num_props; i++) { |
3735 | if (!(supported_bits & (1ULL << props[i].type))) |
||
3736 | continue; |
||
3031 | serge | 3737 | |
5060 | serge | 3738 | if (WARN_ON(index >= num_values)) { |
3739 | drm_property_destroy(dev, property); |
||
3740 | return NULL; |
||
3741 | } |
||
3742 | |||
3743 | ret = drm_property_add_enum(property, index++, |
||
3031 | serge | 3744 | props[i].type, |
3745 | props[i].name); |
||
3746 | if (ret) { |
||
3747 | drm_property_destroy(dev, property); |
||
3748 | return NULL; |
||
3749 | } |
||
3750 | } |
||
3751 | |||
3752 | return property; |
||
3753 | } |
||
3754 | EXPORT_SYMBOL(drm_property_create_bitmask); |
||
3755 | |||
5060 | serge | 3756 | static struct drm_property *property_create_range(struct drm_device *dev, |
3757 | int flags, const char *name, |
||
3031 | serge | 3758 | uint64_t min, uint64_t max) |
3759 | { |
||
3760 | struct drm_property *property; |
||
3761 | |||
3762 | property = drm_property_create(dev, flags, name, 2); |
||
3763 | if (!property) |
||
3764 | return NULL; |
||
3765 | |||
3766 | property->values[0] = min; |
||
3767 | property->values[1] = max; |
||
3768 | |||
3769 | return property; |
||
3770 | } |
||
5060 | serge | 3771 | |
3772 | /** |
||
6084 | serge | 3773 | * drm_property_create_range - create a new unsigned ranged property type |
5060 | serge | 3774 | * @dev: drm device |
3775 | * @flags: flags specifying the property type |
||
3776 | * @name: name of the property |
||
3777 | * @min: minimum value of the property |
||
3778 | * @max: maximum value of the property |
||
3779 | * |
||
3780 | * This creates a new generic drm property which can then be attached to a drm |
||
3781 | * object with drm_object_attach_property. The returned property object must be |
||
3782 | * freed with drm_property_destroy. |
||
3783 | * |
||
6084 | serge | 3784 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3785 | * range inclusive. |
||
5060 | serge | 3786 | * |
3787 | * Returns: |
||
3788 | * A pointer to the newly created property on success, NULL on failure. |
||
3789 | */ |
||
3790 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
||
3791 | const char *name, |
||
3792 | uint64_t min, uint64_t max) |
||
3793 | { |
||
3794 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
||
3795 | name, min, max); |
||
3796 | } |
||
3031 | serge | 3797 | EXPORT_SYMBOL(drm_property_create_range); |
3798 | |||
6084 | serge | 3799 | /** |
3800 | * drm_property_create_signed_range - create a new signed ranged property type |
||
3801 | * @dev: drm device |
||
3802 | * @flags: flags specifying the property type |
||
3803 | * @name: name of the property |
||
3804 | * @min: minimum value of the property |
||
3805 | * @max: maximum value of the property |
||
3806 | * |
||
3807 | * This creates a new generic drm property which can then be attached to a drm |
||
3808 | * object with drm_object_attach_property. The returned property object must be |
||
3809 | * freed with drm_property_destroy. |
||
3810 | * |
||
3811 | * Userspace is allowed to set any signed integer value in the (min, max) |
||
3812 | * range inclusive. |
||
3813 | * |
||
3814 | * Returns: |
||
3815 | * A pointer to the newly created property on success, NULL on failure. |
||
3816 | */ |
||
5060 | serge | 3817 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3818 | int flags, const char *name, |
||
3819 | int64_t min, int64_t max) |
||
3820 | { |
||
3821 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, |
||
3822 | name, I642U64(min), I642U64(max)); |
||
3823 | } |
||
3824 | EXPORT_SYMBOL(drm_property_create_signed_range); |
||
3825 | |||
6084 | serge | 3826 | /** |
3827 | * drm_property_create_object - create a new object property type |
||
3828 | * @dev: drm device |
||
3829 | * @flags: flags specifying the property type |
||
3830 | * @name: name of the property |
||
3831 | * @type: object type from DRM_MODE_OBJECT_* defines |
||
3832 | * |
||
3833 | * This creates a new generic drm property which can then be attached to a drm |
||
3834 | * object with drm_object_attach_property. The returned property object must be |
||
3835 | * freed with drm_property_destroy. |
||
3836 | * |
||
3837 | * Userspace is only allowed to set this to any property value of the given |
||
3838 | * @type. Only useful for atomic properties, which is enforced. |
||
3839 | * |
||
3840 | * Returns: |
||
3841 | * A pointer to the newly created property on success, NULL on failure. |
||
3842 | */ |
||
5060 | serge | 3843 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3844 | int flags, const char *name, uint32_t type) |
||
3845 | { |
||
3846 | struct drm_property *property; |
||
3847 | |||
3848 | flags |= DRM_MODE_PROP_OBJECT; |
||
3849 | |||
6084 | serge | 3850 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3851 | return NULL; |
||
3852 | |||
5060 | serge | 3853 | property = drm_property_create(dev, flags, name, 1); |
3854 | if (!property) |
||
3855 | return NULL; |
||
3856 | |||
3857 | property->values[0] = type; |
||
3858 | |||
3859 | return property; |
||
3860 | } |
||
3861 | EXPORT_SYMBOL(drm_property_create_object); |
||
3862 | |||
3863 | /** |
||
6084 | serge | 3864 | * drm_property_create_bool - create a new boolean property type |
3865 | * @dev: drm device |
||
3866 | * @flags: flags specifying the property type |
||
3867 | * @name: name of the property |
||
3868 | * |
||
3869 | * This creates a new generic drm property which can then be attached to a drm |
||
3870 | * object with drm_object_attach_property. The returned property object must be |
||
3871 | * freed with drm_property_destroy. |
||
3872 | * |
||
3873 | * This is implemented as a ranged property with only {0, 1} as valid values. |
||
3874 | * |
||
3875 | * Returns: |
||
3876 | * A pointer to the newly created property on success, NULL on failure. |
||
3877 | */ |
||
3878 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, |
||
3879 | const char *name) |
||
3880 | { |
||
3881 | return drm_property_create_range(dev, flags, name, 0, 1); |
||
3882 | } |
||
3883 | EXPORT_SYMBOL(drm_property_create_bool); |
||
3884 | |||
3885 | /** |
||
5060 | serge | 3886 | * drm_property_add_enum - add a possible value to an enumeration property |
3887 | * @property: enumeration property to change |
||
3888 | * @index: index of the new enumeration |
||
3889 | * @value: value of the new enumeration |
||
3890 | * @name: symbolic name of the new enumeration |
||
3891 | * |
||
3892 | * This functions adds enumerations to a property. |
||
3893 | * |
||
3894 | * It's use is deprecated, drivers should use one of the more specific helpers |
||
3895 | * to directly create the property with all enumerations already attached. |
||
3896 | * |
||
3897 | * Returns: |
||
3898 | * Zero on success, error code on failure. |
||
3899 | */ |
||
1123 | serge | 3900 | int drm_property_add_enum(struct drm_property *property, int index, |
3901 | uint64_t value, const char *name) |
||
3902 | { |
||
3903 | struct drm_property_enum *prop_enum; |
||
3904 | |||
5060 | serge | 3905 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3906 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) |
||
1123 | serge | 3907 | return -EINVAL; |
3908 | |||
3031 | serge | 3909 | /* |
3910 | * Bitmask enum properties have the additional constraint of values |
||
3911 | * from 0 to 63 |
||
3912 | */ |
||
5060 | serge | 3913 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3914 | (value > 63)) |
||
3031 | serge | 3915 | return -EINVAL; |
3916 | |||
5271 | serge | 3917 | if (!list_empty(&property->enum_list)) { |
3918 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
||
1123 | serge | 3919 | if (prop_enum->value == value) { |
3920 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3921 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3922 | return 0; |
||
3923 | } |
||
3924 | } |
||
3925 | } |
||
3926 | |||
3927 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
||
3928 | if (!prop_enum) |
||
3929 | return -ENOMEM; |
||
3930 | |||
3931 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3932 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3933 | prop_enum->value = value; |
||
3934 | |||
3935 | property->values[index] = value; |
||
5271 | serge | 3936 | list_add_tail(&prop_enum->head, &property->enum_list); |
1123 | serge | 3937 | return 0; |
3938 | } |
||
3939 | EXPORT_SYMBOL(drm_property_add_enum); |
||
3940 | |||
5060 | serge | 3941 | /** |
3942 | * drm_property_destroy - destroy a drm property |
||
3943 | * @dev: drm device |
||
3944 | * @property: property to destry |
||
3945 | * |
||
3946 | * This function frees a property including any attached resources like |
||
3947 | * enumeration values. |
||
3948 | */ |
||
1123 | serge | 3949 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3950 | { |
||
3951 | struct drm_property_enum *prop_enum, *pt; |
||
3952 | |||
5271 | serge | 3953 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
1123 | serge | 3954 | list_del(&prop_enum->head); |
3955 | kfree(prop_enum); |
||
3956 | } |
||
3957 | |||
3958 | if (property->num_values) |
||
3959 | kfree(property->values); |
||
3960 | drm_mode_object_put(dev, &property->base); |
||
3961 | list_del(&property->head); |
||
3962 | kfree(property); |
||
3963 | } |
||
3964 | EXPORT_SYMBOL(drm_property_destroy); |
||
3965 | |||
5060 | serge | 3966 | /** |
3967 | * drm_object_attach_property - attach a property to a modeset object |
||
3968 | * @obj: drm modeset object |
||
3969 | * @property: property to attach |
||
3970 | * @init_val: initial value of the property |
||
3971 | * |
||
3972 | * This attaches the given property to the modeset object with the given initial |
||
3973 | * value. Currently this function cannot fail since the properties are stored in |
||
3974 | * a statically sized array. |
||
3975 | */ |
||
3031 | serge | 3976 | void drm_object_attach_property(struct drm_mode_object *obj, |
3977 | struct drm_property *property, |
||
3978 | uint64_t init_val) |
||
3979 | { |
||
3980 | int count = obj->properties->count; |
||
3981 | |||
3982 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
||
3983 | WARN(1, "Failed to attach object property (type: 0x%x). Please " |
||
3984 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " |
||
3985 | "you see this message on the same object type.\n", |
||
3986 | obj->type); |
||
3987 | return; |
||
3988 | } |
||
3989 | |||
6084 | serge | 3990 | obj->properties->properties[count] = property; |
3031 | serge | 3991 | obj->properties->values[count] = init_val; |
3992 | obj->properties->count++; |
||
6084 | serge | 3993 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
3994 | obj->properties->atomic_count++; |
||
3031 | serge | 3995 | } |
3996 | EXPORT_SYMBOL(drm_object_attach_property); |
||
3997 | |||
5060 | serge | 3998 | /** |
3999 | * drm_object_property_set_value - set the value of a property |
||
4000 | * @obj: drm mode object to set property value for |
||
4001 | * @property: property to set |
||
4002 | * @val: value the property should be set to |
||
4003 | * |
||
4004 | * This functions sets a given property on a given object. This function only |
||
4005 | * changes the software state of the property, it does not call into the |
||
4006 | * driver's ->set_property callback. |
||
4007 | * |
||
4008 | * Returns: |
||
4009 | * Zero on success, error code on failure. |
||
4010 | */ |
||
3031 | serge | 4011 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4012 | struct drm_property *property, uint64_t val) |
||
4013 | { |
||
1123 | serge | 4014 | int i; |
4015 | |||
3031 | serge | 4016 | for (i = 0; i < obj->properties->count; i++) { |
6084 | serge | 4017 | if (obj->properties->properties[i] == property) { |
3031 | serge | 4018 | obj->properties->values[i] = val; |
4019 | return 0; |
||
1123 | serge | 4020 | } |
4021 | } |
||
4022 | |||
6084 | serge | 4023 | return -EINVAL; |
1123 | serge | 4024 | } |
3031 | serge | 4025 | EXPORT_SYMBOL(drm_object_property_set_value); |
1123 | serge | 4026 | |
5060 | serge | 4027 | /** |
4028 | * drm_object_property_get_value - retrieve the value of a property |
||
4029 | * @obj: drm mode object to get property value from |
||
4030 | * @property: property to retrieve |
||
4031 | * @val: storage for the property value |
||
4032 | * |
||
4033 | * This function retrieves the softare state of the given property for the given |
||
4034 | * property. Since there is no driver callback to retrieve the current property |
||
4035 | * value this might be out of sync with the hardware, depending upon the driver |
||
4036 | * and property. |
||
4037 | * |
||
4038 | * Returns: |
||
4039 | * Zero on success, error code on failure. |
||
4040 | */ |
||
3031 | serge | 4041 | int drm_object_property_get_value(struct drm_mode_object *obj, |
1123 | serge | 4042 | struct drm_property *property, uint64_t *val) |
4043 | { |
||
4044 | int i; |
||
4045 | |||
6084 | serge | 4046 | /* read-only properties bypass atomic mechanism and still store |
4047 | * their value in obj->properties->values[].. mostly to avoid |
||
4048 | * having to deal w/ EDID and similar props in atomic paths: |
||
4049 | */ |
||
4050 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && |
||
4051 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) |
||
4052 | return drm_atomic_get_property(obj, property, val); |
||
4053 | |||
3031 | serge | 4054 | for (i = 0; i < obj->properties->count; i++) { |
6084 | serge | 4055 | if (obj->properties->properties[i] == property) { |
3031 | serge | 4056 | *val = obj->properties->values[i]; |
4057 | return 0; |
||
1123 | serge | 4058 | } |
4059 | } |
||
4060 | |||
6084 | serge | 4061 | return -EINVAL; |
1123 | serge | 4062 | } |
3031 | serge | 4063 | EXPORT_SYMBOL(drm_object_property_get_value); |
1123 | serge | 4064 | |
4065 | #if 0 |
||
5060 | serge | 4066 | /** |
5271 | serge | 4067 | * drm_mode_getproperty_ioctl - get the property metadata |
5060 | serge | 4068 | * @dev: DRM device |
4069 | * @data: ioctl data |
||
4070 | * @file_priv: DRM file info |
||
4071 | * |
||
5271 | serge | 4072 | * This function retrieves the metadata for a given property, like the different |
4073 | * possible values for an enum property or the limits for a range property. |
||
5060 | serge | 4074 | * |
5271 | serge | 4075 | * Blob properties are special |
4076 | * |
||
5060 | serge | 4077 | * Called by the user via ioctl. |
4078 | * |
||
4079 | * Returns: |
||
5271 | serge | 4080 | * Zero on success, negative errno on failure. |
5060 | serge | 4081 | */ |
1123 | serge | 4082 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4083 | void *data, struct drm_file *file_priv) |
||
4084 | { |
||
4085 | struct drm_mode_get_property *out_resp = data; |
||
4086 | struct drm_property *property; |
||
4087 | int enum_count = 0; |
||
4088 | int value_count = 0; |
||
4089 | int ret = 0, i; |
||
4090 | int copied; |
||
4091 | struct drm_property_enum *prop_enum; |
||
4092 | struct drm_mode_property_enum __user *enum_ptr; |
||
4093 | uint64_t __user *values_ptr; |
||
4094 | |||
1963 | serge | 4095 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4096 | return -EINVAL; |
||
4097 | |||
3480 | Serge | 4098 | drm_modeset_lock_all(dev); |
5060 | serge | 4099 | property = drm_property_find(dev, out_resp->prop_id); |
4100 | if (!property) { |
||
4560 | Serge | 4101 | ret = -ENOENT; |
1123 | serge | 4102 | goto done; |
4103 | } |
||
4104 | |||
5060 | serge | 4105 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4106 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
5271 | serge | 4107 | list_for_each_entry(prop_enum, &property->enum_list, head) |
1123 | serge | 4108 | enum_count++; |
4109 | } |
||
4110 | |||
4111 | value_count = property->num_values; |
||
4112 | |||
4113 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
||
4114 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
||
4115 | out_resp->flags = property->flags; |
||
4116 | |||
4117 | if ((out_resp->count_values >= value_count) && value_count) { |
||
3031 | serge | 4118 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
1123 | serge | 4119 | for (i = 0; i < value_count; i++) { |
4120 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
||
4121 | ret = -EFAULT; |
||
4122 | goto done; |
||
4123 | } |
||
4124 | } |
||
4125 | } |
||
4126 | out_resp->count_values = value_count; |
||
4127 | |||
5060 | serge | 4128 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4129 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
1123 | serge | 4130 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4131 | copied = 0; |
||
3031 | serge | 4132 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
5271 | serge | 4133 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
1123 | serge | 4134 | |
4135 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
||
4136 | ret = -EFAULT; |
||
4137 | goto done; |
||
4138 | } |
||
4139 | |||
4140 | if (copy_to_user(&enum_ptr[copied].name, |
||
4141 | &prop_enum->name, DRM_PROP_NAME_LEN)) { |
||
4142 | ret = -EFAULT; |
||
4143 | goto done; |
||
4144 | } |
||
4145 | copied++; |
||
4146 | } |
||
4147 | } |
||
4148 | out_resp->count_enum_blobs = enum_count; |
||
4149 | } |
||
4150 | |||
5271 | serge | 4151 | /* |
4152 | * NOTE: The idea seems to have been to use this to read all the blob |
||
4153 | * property values. But nothing ever added them to the corresponding |
||
4154 | * list, userspace always used the special-purpose get_blob ioctl to |
||
4155 | * read the value for a blob property. It also doesn't make a lot of |
||
4156 | * sense to return values here when everything else is just metadata for |
||
4157 | * the property itself. |
||
4158 | */ |
||
4159 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
||
4160 | out_resp->count_enum_blobs = 0; |
||
1123 | serge | 4161 | done: |
3480 | Serge | 4162 | drm_modeset_unlock_all(dev); |
1123 | serge | 4163 | return ret; |
4164 | } |
||
4165 | #endif |
||
4166 | |||
6084 | serge | 4167 | /** |
4168 | * drm_property_create_blob - Create new blob property |
||
4169 | * |
||
4170 | * Creates a new blob property for a specified DRM device, optionally |
||
4171 | * copying data. |
||
4172 | * |
||
4173 | * @dev: DRM device to create property for |
||
4174 | * @length: Length to allocate for blob data |
||
4175 | * @data: If specified, copies data into blob |
||
4176 | * |
||
4177 | * Returns: |
||
4178 | * New blob property with a single reference on success, or an ERR_PTR |
||
4179 | * value on failure. |
||
4180 | */ |
||
4181 | struct drm_property_blob * |
||
5271 | serge | 4182 | drm_property_create_blob(struct drm_device *dev, size_t length, |
4183 | const void *data) |
||
1123 | serge | 4184 | { |
4185 | struct drm_property_blob *blob; |
||
3031 | serge | 4186 | int ret; |
1123 | serge | 4187 | |
6084 | serge | 4188 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
4189 | return ERR_PTR(-EINVAL); |
||
1123 | serge | 4190 | |
4191 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
||
4192 | if (!blob) |
||
6084 | serge | 4193 | return ERR_PTR(-ENOMEM); |
1123 | serge | 4194 | |
6084 | serge | 4195 | /* This must be explicitly initialised, so we can safely call list_del |
4196 | * on it in the removal handler, even if it isn't in a file list. */ |
||
4197 | INIT_LIST_HEAD(&blob->head_file); |
||
4198 | blob->length = length; |
||
4199 | blob->dev = dev; |
||
4200 | |||
4201 | if (data) |
||
4202 | memcpy(blob->data, data, length); |
||
4203 | |||
4204 | mutex_lock(&dev->mode_config.blob_lock); |
||
4205 | |||
3031 | serge | 4206 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4207 | if (ret) { |
||
4208 | kfree(blob); |
||
6084 | serge | 4209 | mutex_unlock(&dev->mode_config.blob_lock); |
4210 | return ERR_PTR(-EINVAL); |
||
3031 | serge | 4211 | } |
4212 | |||
6084 | serge | 4213 | kref_init(&blob->refcount); |
1123 | serge | 4214 | |
6084 | serge | 4215 | list_add_tail(&blob->head_global, |
4216 | &dev->mode_config.property_blob_list); |
||
1123 | serge | 4217 | |
6084 | serge | 4218 | mutex_unlock(&dev->mode_config.blob_lock); |
4219 | |||
1123 | serge | 4220 | return blob; |
4221 | } |
||
6084 | serge | 4222 | EXPORT_SYMBOL(drm_property_create_blob); |
1123 | serge | 4223 | |
6084 | serge | 4224 | /** |
4225 | * drm_property_free_blob - Blob property destructor |
||
4226 | * |
||
4227 | * Internal free function for blob properties; must not be used directly. |
||
4228 | * |
||
4229 | * @kref: Reference |
||
4230 | */ |
||
4231 | static void drm_property_free_blob(struct kref *kref) |
||
1123 | serge | 4232 | { |
6084 | serge | 4233 | struct drm_property_blob *blob = |
4234 | container_of(kref, struct drm_property_blob, refcount); |
||
4235 | |||
4236 | WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); |
||
4237 | |||
4238 | list_del(&blob->head_global); |
||
4239 | list_del(&blob->head_file); |
||
4240 | drm_mode_object_put(blob->dev, &blob->base); |
||
4241 | |||
1123 | serge | 4242 | kfree(blob); |
4243 | } |
||
4244 | |||
6084 | serge | 4245 | /** |
4246 | * drm_property_unreference_blob - Unreference a blob property |
||
4247 | * |
||
4248 | * Drop a reference on a blob property. May free the object. |
||
4249 | * |
||
4250 | * @blob: Pointer to blob property |
||
4251 | */ |
||
4252 | void drm_property_unreference_blob(struct drm_property_blob *blob) |
||
4253 | { |
||
4254 | struct drm_device *dev; |
||
4255 | |||
4256 | if (!blob) |
||
4257 | return; |
||
4258 | |||
4259 | dev = blob->dev; |
||
4260 | |||
4261 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4262 | |||
4263 | if (kref_put_mutex(&blob->refcount, drm_property_free_blob, |
||
4264 | &dev->mode_config.blob_lock)) |
||
4265 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4266 | else |
||
4267 | might_lock(&dev->mode_config.blob_lock); |
||
4268 | } |
||
4269 | EXPORT_SYMBOL(drm_property_unreference_blob); |
||
4270 | |||
4271 | /** |
||
4272 | * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held |
||
4273 | * |
||
4274 | * Drop a reference on a blob property. May free the object. This must be |
||
4275 | * called with blob_lock held. |
||
4276 | * |
||
4277 | * @blob: Pointer to blob property |
||
4278 | */ |
||
4279 | static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) |
||
4280 | { |
||
4281 | if (!blob) |
||
4282 | return; |
||
4283 | |||
4284 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4285 | |||
4286 | kref_put(&blob->refcount, drm_property_free_blob); |
||
4287 | } |
||
4288 | |||
4289 | /** |
||
4290 | * drm_property_destroy_user_blobs - destroy all blobs created by this client |
||
4291 | * @dev: DRM device |
||
4292 | * @file_priv: destroy all blobs owned by this file handle |
||
4293 | */ |
||
4294 | void drm_property_destroy_user_blobs(struct drm_device *dev, |
||
4295 | struct drm_file *file_priv) |
||
4296 | { |
||
4297 | struct drm_property_blob *blob, *bt; |
||
4298 | |||
4299 | mutex_lock(&dev->mode_config.blob_lock); |
||
4300 | |||
4301 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
||
4302 | list_del_init(&blob->head_file); |
||
4303 | drm_property_unreference_blob_locked(blob); |
||
4304 | } |
||
4305 | |||
4306 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4307 | } |
||
4308 | |||
4309 | /** |
||
4310 | * drm_property_reference_blob - Take a reference on an existing property |
||
4311 | * |
||
4312 | * Take a new reference on an existing blob property. |
||
4313 | * |
||
4314 | * @blob: Pointer to blob property |
||
4315 | */ |
||
4316 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) |
||
4317 | { |
||
4318 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4319 | kref_get(&blob->refcount); |
||
4320 | return blob; |
||
4321 | } |
||
4322 | EXPORT_SYMBOL(drm_property_reference_blob); |
||
4323 | |||
4324 | /* |
||
4325 | * Like drm_property_lookup_blob, but does not return an additional reference. |
||
4326 | * Must be called with blob_lock held. |
||
4327 | */ |
||
4328 | static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, |
||
4329 | uint32_t id) |
||
4330 | { |
||
4331 | struct drm_mode_object *obj = NULL; |
||
4332 | struct drm_property_blob *blob; |
||
4333 | |||
4334 | WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); |
||
4335 | |||
4336 | mutex_lock(&dev->mode_config.idr_mutex); |
||
4337 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
||
4338 | if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) |
||
4339 | blob = NULL; |
||
4340 | else |
||
4341 | blob = obj_to_blob(obj); |
||
4342 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4343 | |||
4344 | return blob; |
||
4345 | } |
||
4346 | |||
4347 | /** |
||
4348 | * drm_property_lookup_blob - look up a blob property and take a reference |
||
4349 | * @dev: drm device |
||
4350 | * @id: id of the blob property |
||
4351 | * |
||
4352 | * If successful, this takes an additional reference to the blob property. |
||
4353 | * callers need to make sure to eventually unreference the returned property |
||
4354 | * again, using @drm_property_unreference_blob. |
||
4355 | */ |
||
4356 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, |
||
4357 | uint32_t id) |
||
4358 | { |
||
4359 | struct drm_property_blob *blob; |
||
4360 | |||
4361 | mutex_lock(&dev->mode_config.blob_lock); |
||
4362 | blob = __drm_property_lookup_blob(dev, id); |
||
4363 | if (blob) { |
||
4364 | if (!kref_get_unless_zero(&blob->refcount)) |
||
4365 | blob = NULL; |
||
4366 | } |
||
4367 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4368 | |||
4369 | return blob; |
||
4370 | } |
||
4371 | EXPORT_SYMBOL(drm_property_lookup_blob); |
||
4372 | |||
4373 | /** |
||
4374 | * drm_property_replace_global_blob - atomically replace existing blob property |
||
4375 | * @dev: drm device |
||
4376 | * @replace: location of blob property pointer to be replaced |
||
4377 | * @length: length of data for new blob, or 0 for no data |
||
4378 | * @data: content for new blob, or NULL for no data |
||
4379 | * @obj_holds_id: optional object for property holding blob ID |
||
4380 | * @prop_holds_id: optional property holding blob ID |
||
4381 | * @return 0 on success or error on failure |
||
4382 | * |
||
4383 | * This function will atomically replace a global property in the blob list, |
||
4384 | * optionally updating a property which holds the ID of that property. It is |
||
4385 | * guaranteed to be atomic: no caller will be allowed to see intermediate |
||
4386 | * results, and either the entire operation will succeed and clean up the |
||
4387 | * previous property, or it will fail and the state will be unchanged. |
||
4388 | * |
||
4389 | * If length is 0 or data is NULL, no new blob will be created, and the holding |
||
4390 | * property, if specified, will be set to 0. |
||
4391 | * |
||
4392 | * Access to the replace pointer is assumed to be protected by the caller, e.g. |
||
4393 | * by holding the relevant modesetting object lock for its parent. |
||
4394 | * |
||
4395 | * For example, a drm_connector has a 'PATH' property, which contains the ID |
||
4396 | * of a blob property with the value of the MST path information. Calling this |
||
4397 | * function with replace pointing to the connector's path_blob_ptr, length and |
||
4398 | * data set for the new path information, obj_holds_id set to the connector's |
||
4399 | * base object, and prop_holds_id set to the path property name, will perform |
||
4400 | * a completely atomic update. The access to path_blob_ptr is protected by the |
||
4401 | * caller holding a lock on the connector. |
||
4402 | */ |
||
4403 | static int drm_property_replace_global_blob(struct drm_device *dev, |
||
4404 | struct drm_property_blob **replace, |
||
4405 | size_t length, |
||
4406 | const void *data, |
||
4407 | struct drm_mode_object *obj_holds_id, |
||
4408 | struct drm_property *prop_holds_id) |
||
4409 | { |
||
4410 | struct drm_property_blob *new_blob = NULL; |
||
4411 | struct drm_property_blob *old_blob = NULL; |
||
4412 | int ret; |
||
4413 | |||
4414 | WARN_ON(replace == NULL); |
||
4415 | |||
4416 | old_blob = *replace; |
||
4417 | |||
4418 | if (length && data) { |
||
4419 | new_blob = drm_property_create_blob(dev, length, data); |
||
4420 | if (IS_ERR(new_blob)) |
||
4421 | return PTR_ERR(new_blob); |
||
4422 | } |
||
4423 | |||
4424 | /* This does not need to be synchronised with blob_lock, as the |
||
4425 | * get_properties ioctl locks all modesetting objects, and |
||
4426 | * obj_holds_id must be locked before calling here, so we cannot |
||
4427 | * have its value out of sync with the list membership modified |
||
4428 | * below under blob_lock. */ |
||
4429 | if (obj_holds_id) { |
||
4430 | ret = drm_object_property_set_value(obj_holds_id, |
||
4431 | prop_holds_id, |
||
4432 | new_blob ? |
||
4433 | new_blob->base.id : 0); |
||
4434 | if (ret != 0) |
||
4435 | goto err_created; |
||
4436 | } |
||
4437 | |||
4438 | drm_property_unreference_blob(old_blob); |
||
4439 | *replace = new_blob; |
||
4440 | |||
4441 | return 0; |
||
4442 | |||
4443 | err_created: |
||
4444 | drm_property_unreference_blob(new_blob); |
||
4445 | return ret; |
||
4446 | } |
||
4447 | |||
4448 | |||
1123 | serge | 4449 | #if 0 |
5060 | serge | 4450 | /** |
4451 | * drm_mode_getblob_ioctl - get the contents of a blob property value |
||
4452 | * @dev: DRM device |
||
4453 | * @data: ioctl data |
||
4454 | * @file_priv: DRM file info |
||
4455 | * |
||
4456 | * This function retrieves the contents of a blob property. The value stored in |
||
4457 | * an object's blob property is just a normal modeset object id. |
||
4458 | * |
||
4459 | * Called by the user via ioctl. |
||
4460 | * |
||
4461 | * Returns: |
||
5271 | serge | 4462 | * Zero on success, negative errno on failure. |
5060 | serge | 4463 | */ |
1123 | serge | 4464 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4465 | void *data, struct drm_file *file_priv) |
||
4466 | { |
||
4467 | struct drm_mode_get_blob *out_resp = data; |
||
4468 | struct drm_property_blob *blob; |
||
4469 | int ret = 0; |
||
3031 | serge | 4470 | void __user *blob_ptr; |
1123 | serge | 4471 | |
1963 | serge | 4472 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4473 | return -EINVAL; |
||
4474 | |||
3480 | Serge | 4475 | drm_modeset_lock_all(dev); |
6084 | serge | 4476 | mutex_lock(&dev->mode_config.blob_lock); |
4477 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); |
||
5060 | serge | 4478 | if (!blob) { |
4560 | Serge | 4479 | ret = -ENOENT; |
1123 | serge | 4480 | goto done; |
4481 | } |
||
4482 | |||
4483 | if (out_resp->length == blob->length) { |
||
3031 | serge | 4484 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
6084 | serge | 4485 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
1123 | serge | 4486 | ret = -EFAULT; |
4487 | goto done; |
||
4488 | } |
||
4489 | } |
||
4490 | out_resp->length = blob->length; |
||
4491 | |||
4492 | done: |
||
6084 | serge | 4493 | mutex_unlock(&dev->mode_config.blob_lock); |
3480 | Serge | 4494 | drm_modeset_unlock_all(dev); |
1123 | serge | 4495 | return ret; |
4496 | } |
||
4497 | #endif |
||
4498 | |||
5271 | serge | 4499 | /** |
4500 | * drm_mode_connector_set_path_property - set tile property on connector |
||
4501 | * @connector: connector to set property on. |
||
6084 | serge | 4502 | * @path: path to use for property; must not be NULL. |
5271 | serge | 4503 | * |
4504 | * This creates a property to expose to userspace to specify a |
||
4505 | * connector path. This is mainly used for DisplayPort MST where |
||
4506 | * connectors have a topology and we want to allow userspace to give |
||
4507 | * them more meaningful names. |
||
4508 | * |
||
4509 | * Returns: |
||
4510 | * Zero on success, negative errno on failure. |
||
4511 | */ |
||
5060 | serge | 4512 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
5271 | serge | 4513 | const char *path) |
5060 | serge | 4514 | { |
4515 | struct drm_device *dev = connector->dev; |
||
5271 | serge | 4516 | int ret; |
5060 | serge | 4517 | |
6084 | serge | 4518 | ret = drm_property_replace_global_blob(dev, |
4519 | &connector->path_blob_ptr, |
||
4520 | strlen(path) + 1, |
||
4521 | path, |
||
4522 | &connector->base, |
||
4523 | dev->mode_config.path_property); |
||
5060 | serge | 4524 | return ret; |
4525 | } |
||
4526 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); |
||
4527 | |||
4528 | /** |
||
5271 | serge | 4529 | * drm_mode_connector_set_tile_property - set tile property on connector |
4530 | * @connector: connector to set property on. |
||
4531 | * |
||
4532 | * This looks up the tile information for a connector, and creates a |
||
4533 | * property for userspace to parse if it exists. The property is of |
||
4534 | * the form of 8 integers using ':' as a separator. |
||
4535 | * |
||
4536 | * Returns: |
||
4537 | * Zero on success, errno on failure. |
||
4538 | */ |
||
4539 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) |
||
4540 | { |
||
4541 | struct drm_device *dev = connector->dev; |
||
4542 | char tile[256]; |
||
6084 | serge | 4543 | int ret; |
5271 | serge | 4544 | |
4545 | if (!connector->has_tile) { |
||
6084 | serge | 4546 | ret = drm_property_replace_global_blob(dev, |
4547 | &connector->tile_blob_ptr, |
||
4548 | 0, |
||
4549 | NULL, |
||
4550 | &connector->base, |
||
4551 | dev->mode_config.tile_property); |
||
5271 | serge | 4552 | return ret; |
4553 | } |
||
4554 | |||
4555 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", |
||
4556 | connector->tile_group->id, connector->tile_is_single_monitor, |
||
4557 | connector->num_h_tile, connector->num_v_tile, |
||
4558 | connector->tile_h_loc, connector->tile_v_loc, |
||
4559 | connector->tile_h_size, connector->tile_v_size); |
||
4560 | |||
6084 | serge | 4561 | ret = drm_property_replace_global_blob(dev, |
4562 | &connector->tile_blob_ptr, |
||
4563 | strlen(tile) + 1, |
||
4564 | tile, |
||
4565 | &connector->base, |
||
4566 | dev->mode_config.tile_property); |
||
5271 | serge | 4567 | return ret; |
4568 | } |
||
4569 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); |
||
4570 | |||
4571 | /** |
||
5060 | serge | 4572 | * drm_mode_connector_update_edid_property - update the edid property of a connector |
4573 | * @connector: drm connector |
||
4574 | * @edid: new value of the edid property |
||
4575 | * |
||
4576 | * This function creates a new blob modeset object and assigns its id to the |
||
4577 | * connector's edid property. |
||
4578 | * |
||
4579 | * Returns: |
||
5367 | serge | 4580 | * Zero on success, negative errno on failure. |
5060 | serge | 4581 | */ |
1123 | serge | 4582 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
5271 | serge | 4583 | const struct edid *edid) |
1123 | serge | 4584 | { |
4585 | struct drm_device *dev = connector->dev; |
||
6084 | serge | 4586 | size_t size = 0; |
5271 | serge | 4587 | int ret; |
1123 | serge | 4588 | |
5060 | serge | 4589 | /* ignore requests to set edid when overridden */ |
4590 | if (connector->override_edid) |
||
4591 | return 0; |
||
4592 | |||
6084 | serge | 4593 | if (edid) |
4594 | size = EDID_LENGTH * (1 + edid->extensions); |
||
1123 | serge | 4595 | |
6084 | serge | 4596 | ret = drm_property_replace_global_blob(dev, |
4597 | &connector->edid_blob_ptr, |
||
4598 | size, |
||
4599 | edid, |
||
4600 | &connector->base, |
||
4601 | dev->mode_config.edid_property); |
||
4602 | return ret; |
||
4603 | } |
||
4604 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
||
4605 | |||
4606 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
||
4607 | * need special locking to handle lifetime issues (ie. to ensure the prop |
||
4608 | * value doesn't become invalid part way through the property update due to |
||
4609 | * race). The value returned by reference via 'obj' should be passed back |
||
4610 | * to drm_property_change_valid_put() after the property is set (and the |
||
4611 | * object to which the property is attached has a chance to take it's own |
||
4612 | * reference). |
||
4613 | */ |
||
4614 | bool drm_property_change_valid_get(struct drm_property *property, |
||
4615 | uint64_t value, struct drm_mode_object **ref) |
||
4616 | { |
||
4617 | int i; |
||
4618 | |||
4619 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
||
4620 | return false; |
||
4621 | |||
4622 | *ref = NULL; |
||
4623 | |||
4624 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
||
4625 | if (value < property->values[0] || value > property->values[1]) |
||
4626 | return false; |
||
4627 | return true; |
||
4628 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
||
4629 | int64_t svalue = U642I64(value); |
||
4630 | |||
4631 | if (svalue < U642I64(property->values[0]) || |
||
4632 | svalue > U642I64(property->values[1])) |
||
4633 | return false; |
||
4634 | return true; |
||
4635 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
4636 | uint64_t valid_mask = 0; |
||
4637 | |||
4638 | for (i = 0; i < property->num_values; i++) |
||
4639 | valid_mask |= (1ULL << property->values[i]); |
||
4640 | return !(value & ~valid_mask); |
||
4641 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
||
4642 | struct drm_property_blob *blob; |
||
4643 | |||
4644 | if (value == 0) |
||
4645 | return true; |
||
4646 | |||
4647 | blob = drm_property_lookup_blob(property->dev, value); |
||
4648 | if (blob) { |
||
4649 | *ref = &blob->base; |
||
4650 | return true; |
||
4651 | } else { |
||
4652 | return false; |
||
4653 | } |
||
4654 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
||
4655 | /* a zero value for an object property translates to null: */ |
||
4656 | if (value == 0) |
||
4657 | return true; |
||
4658 | |||
4659 | /* handle refcnt'd objects specially: */ |
||
4660 | if (property->values[0] == DRM_MODE_OBJECT_FB) { |
||
4661 | struct drm_framebuffer *fb; |
||
4662 | fb = drm_framebuffer_lookup(property->dev, value); |
||
4663 | if (fb) { |
||
4664 | *ref = &fb->base; |
||
4665 | return true; |
||
4666 | } else { |
||
4667 | return false; |
||
4668 | } |
||
4669 | } else { |
||
4670 | return _object_find(property->dev, value, property->values[0]) != NULL; |
||
4671 | } |
||
1123 | serge | 4672 | } |
4673 | |||
6084 | serge | 4674 | for (i = 0; i < property->num_values; i++) |
4675 | if (property->values[i] == value) |
||
4676 | return true; |
||
4677 | return false; |
||
4678 | } |
||
1123 | serge | 4679 | |
6084 | serge | 4680 | void drm_property_change_valid_put(struct drm_property *property, |
4681 | struct drm_mode_object *ref) |
||
4682 | { |
||
4683 | if (!ref) |
||
4684 | return; |
||
1123 | serge | 4685 | |
6084 | serge | 4686 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
4687 | if (property->values[0] == DRM_MODE_OBJECT_FB) |
||
4688 | drm_framebuffer_unreference(obj_to_fb(ref)); |
||
4689 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
||
4690 | drm_property_unreference_blob(obj_to_blob(ref)); |
||
1123 | serge | 4691 | } |
4692 | |||
3031 | serge | 4693 | |
5271 | serge | 4694 | |
3031 | serge | 4695 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4696 | struct drm_property *property, |
||
4697 | uint64_t value) |
||
1123 | serge | 4698 | { |
3031 | serge | 4699 | int ret = -EINVAL; |
4700 | struct drm_connector *connector = obj_to_connector(obj); |
||
4701 | |||
4702 | /* Do DPMS ourselves */ |
||
4703 | if (property == connector->dev->mode_config.dpms_property) { |
||
7144 | serge | 4704 | ret = (*connector->funcs->dpms)(connector, (int)value); |
3031 | serge | 4705 | } else if (connector->funcs->set_property) |
4706 | ret = connector->funcs->set_property(connector, property, value); |
||
4707 | |||
4708 | /* store the property value if successful */ |
||
4709 | if (!ret) |
||
3192 | Serge | 4710 | drm_object_property_set_value(&connector->base, property, value); |
3031 | serge | 4711 | return ret; |
4712 | } |
||
4713 | |||
4714 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
||
4715 | struct drm_property *property, |
||
4716 | uint64_t value) |
||
4717 | { |
||
4718 | int ret = -EINVAL; |
||
4719 | struct drm_crtc *crtc = obj_to_crtc(obj); |
||
4720 | |||
4721 | if (crtc->funcs->set_property) |
||
4722 | ret = crtc->funcs->set_property(crtc, property, value); |
||
4723 | if (!ret) |
||
4724 | drm_object_property_set_value(obj, property, value); |
||
4725 | |||
4726 | return ret; |
||
4727 | } |
||
4728 | |||
5271 | serge | 4729 | /** |
4730 | * drm_mode_plane_set_obj_prop - set the value of a property |
||
4731 | * @plane: drm plane object to set property value for |
||
4732 | * @property: property to set |
||
4733 | * @value: value the property should be set to |
||
4734 | * |
||
4735 | * This functions sets a given property on a given plane object. This function |
||
4736 | * calls the driver's ->set_property callback and changes the software state of |
||
4737 | * the property if the callback succeeds. |
||
4738 | * |
||
4739 | * Returns: |
||
4740 | * Zero on success, error code on failure. |
||
4741 | */ |
||
4742 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, |
||
6084 | serge | 4743 | struct drm_property *property, |
4744 | uint64_t value) |
||
3031 | serge | 4745 | { |
4746 | int ret = -EINVAL; |
||
5271 | serge | 4747 | struct drm_mode_object *obj = &plane->base; |
3031 | serge | 4748 | |
4749 | if (plane->funcs->set_property) |
||
4750 | ret = plane->funcs->set_property(plane, property, value); |
||
4751 | if (!ret) |
||
4752 | drm_object_property_set_value(obj, property, value); |
||
4753 | |||
4754 | return ret; |
||
4755 | } |
||
5271 | serge | 4756 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
3031 | serge | 4757 | |
5271 | serge | 4758 | #if 0 |
5060 | serge | 4759 | /** |
5271 | serge | 4760 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
5060 | serge | 4761 | * @dev: DRM device |
4762 | * @data: ioctl data |
||
4763 | * @file_priv: DRM file info |
||
4764 | * |
||
4765 | * This function retrieves the current value for an object's property. Compared |
||
4766 | * to the connector specific ioctl this one is extended to also work on crtc and |
||
4767 | * plane objects. |
||
4768 | * |
||
4769 | * Called by the user via ioctl. |
||
4770 | * |
||
4771 | * Returns: |
||
5271 | serge | 4772 | * Zero on success, negative errno on failure. |
5060 | serge | 4773 | */ |
3031 | serge | 4774 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4775 | struct drm_file *file_priv) |
||
4776 | { |
||
4777 | struct drm_mode_obj_get_properties *arg = data; |
||
1123 | serge | 4778 | struct drm_mode_object *obj; |
3031 | serge | 4779 | int ret = 0; |
1123 | serge | 4780 | |
1963 | serge | 4781 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4782 | return -EINVAL; |
||
4783 | |||
3480 | Serge | 4784 | drm_modeset_lock_all(dev); |
1123 | serge | 4785 | |
3031 | serge | 4786 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
1123 | serge | 4787 | if (!obj) { |
4560 | Serge | 4788 | ret = -ENOENT; |
1123 | serge | 4789 | goto out; |
4790 | } |
||
3031 | serge | 4791 | if (!obj->properties) { |
4792 | ret = -EINVAL; |
||
4793 | goto out; |
||
4794 | } |
||
1123 | serge | 4795 | |
6084 | serge | 4796 | ret = get_properties(obj, file_priv->atomic, |
4797 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
||
4798 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), |
||
4799 | &arg->count_props); |
||
3031 | serge | 4800 | |
4801 | out: |
||
3480 | Serge | 4802 | drm_modeset_unlock_all(dev); |
3031 | serge | 4803 | return ret; |
4804 | } |
||
1123 | serge | 4805 | |
5060 | serge | 4806 | /** |
4807 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property |
||
4808 | * @dev: DRM device |
||
4809 | * @data: ioctl data |
||
4810 | * @file_priv: DRM file info |
||
4811 | * |
||
4812 | * This function sets the current value for an object's property. It also calls |
||
4813 | * into a driver's ->set_property callback to update the hardware state. |
||
4814 | * Compared to the connector specific ioctl this one is extended to also work on |
||
4815 | * crtc and plane objects. |
||
4816 | * |
||
4817 | * Called by the user via ioctl. |
||
4818 | * |
||
4819 | * Returns: |
||
5271 | serge | 4820 | * Zero on success, negative errno on failure. |
5060 | serge | 4821 | */ |
3031 | serge | 4822 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4823 | struct drm_file *file_priv) |
||
4824 | { |
||
4825 | struct drm_mode_obj_set_property *arg = data; |
||
4826 | struct drm_mode_object *arg_obj; |
||
4827 | struct drm_mode_object *prop_obj; |
||
4828 | struct drm_property *property; |
||
6084 | serge | 4829 | int i, ret = -EINVAL; |
4830 | struct drm_mode_object *ref; |
||
3031 | serge | 4831 | |
4832 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
4833 | return -EINVAL; |
||
4834 | |||
3480 | Serge | 4835 | drm_modeset_lock_all(dev); |
3031 | serge | 4836 | |
4837 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
||
4560 | Serge | 4838 | if (!arg_obj) { |
4839 | ret = -ENOENT; |
||
1123 | serge | 4840 | goto out; |
4560 | Serge | 4841 | } |
3031 | serge | 4842 | if (!arg_obj->properties) |
4843 | goto out; |
||
1123 | serge | 4844 | |
3031 | serge | 4845 | for (i = 0; i < arg_obj->properties->count; i++) |
6084 | serge | 4846 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
3031 | serge | 4847 | break; |
4848 | |||
4849 | if (i == arg_obj->properties->count) |
||
1123 | serge | 4850 | goto out; |
4851 | |||
3031 | serge | 4852 | prop_obj = drm_mode_object_find(dev, arg->prop_id, |
4853 | DRM_MODE_OBJECT_PROPERTY); |
||
4560 | Serge | 4854 | if (!prop_obj) { |
4855 | ret = -ENOENT; |
||
6084 | serge | 4856 | goto out; |
4560 | Serge | 4857 | } |
3031 | serge | 4858 | property = obj_to_property(prop_obj); |
1123 | serge | 4859 | |
6084 | serge | 4860 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
4861 | goto out; |
||
3031 | serge | 4862 | |
4863 | switch (arg_obj->type) { |
||
4864 | case DRM_MODE_OBJECT_CONNECTOR: |
||
4865 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, |
||
4866 | arg->value); |
||
4867 | break; |
||
4868 | case DRM_MODE_OBJECT_CRTC: |
||
4869 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); |
||
4870 | break; |
||
4871 | case DRM_MODE_OBJECT_PLANE: |
||
5271 | serge | 4872 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4873 | property, arg->value); |
||
6084 | serge | 4874 | break; |
4875 | } |
||
1123 | serge | 4876 | |
6084 | serge | 4877 | drm_property_change_valid_put(property, ref); |
4878 | |||
1123 | serge | 4879 | out: |
3480 | Serge | 4880 | drm_modeset_unlock_all(dev); |
1123 | serge | 4881 | return ret; |
4882 | } |
||
4883 | #endif |
||
4884 | |||
5060 | serge | 4885 | /** |
4886 | * drm_mode_connector_attach_encoder - attach a connector to an encoder |
||
4887 | * @connector: connector to attach |
||
4888 | * @encoder: encoder to attach @connector to |
||
4889 | * |
||
4890 | * This function links up a connector to an encoder. Note that the routing |
||
4891 | * restrictions between encoders and crtcs are exposed to userspace through the |
||
4892 | * possible_clones and possible_crtcs bitmasks. |
||
4893 | * |
||
4894 | * Returns: |
||
5271 | serge | 4895 | * Zero on success, negative errno on failure. |
5060 | serge | 4896 | */ |
1123 | serge | 4897 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4898 | struct drm_encoder *encoder) |
||
4899 | { |
||
4900 | int i; |
||
4901 | |||
6937 | serge | 4902 | /* |
4903 | * In the past, drivers have attempted to model the static association |
||
4904 | * of connector to encoder in simple connector/encoder devices using a |
||
4905 | * direct assignment of connector->encoder = encoder. This connection |
||
4906 | * is a logical one and the responsibility of the core, so drivers are |
||
4907 | * expected not to mess with this. |
||
4908 | * |
||
4909 | * Note that the error return should've been enough here, but a large |
||
4910 | * majority of drivers ignores the return value, so add in a big WARN |
||
4911 | * to get people's attention. |
||
4912 | */ |
||
4913 | if (WARN_ON(connector->encoder)) |
||
4914 | return -EINVAL; |
||
4915 | |||
1123 | serge | 4916 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
4917 | if (connector->encoder_ids[i] == 0) { |
||
4918 | connector->encoder_ids[i] = encoder->base.id; |
||
4919 | return 0; |
||
4920 | } |
||
4921 | } |
||
4922 | return -ENOMEM; |
||
4923 | } |
||
4924 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
||
4925 | |||
5060 | serge | 4926 | /** |
4927 | * drm_mode_crtc_set_gamma_size - set the gamma table size |
||
4928 | * @crtc: CRTC to set the gamma table size for |
||
4929 | * @gamma_size: size of the gamma table |
||
4930 | * |
||
4931 | * Drivers which support gamma tables should set this to the supported gamma |
||
4932 | * table size when initializing the CRTC. Currently the drm core only supports a |
||
4933 | * fixed gamma table size. |
||
4934 | * |
||
4935 | * Returns: |
||
5271 | serge | 4936 | * Zero on success, negative errno on failure. |
5060 | serge | 4937 | */ |
3031 | serge | 4938 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
6084 | serge | 4939 | int gamma_size) |
1123 | serge | 4940 | { |
4941 | crtc->gamma_size = gamma_size; |
||
4942 | |||
6084 | serge | 4943 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4944 | GFP_KERNEL); |
||
1123 | serge | 4945 | if (!crtc->gamma_store) { |
4946 | crtc->gamma_size = 0; |
||
3031 | serge | 4947 | return -ENOMEM; |
1123 | serge | 4948 | } |
4949 | |||
3031 | serge | 4950 | return 0; |
1123 | serge | 4951 | } |
4952 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
||
4953 | |||
4954 | #if 0 |
||
5060 | serge | 4955 | /** |
4956 | * drm_mode_gamma_set_ioctl - set the gamma table |
||
4957 | * @dev: DRM device |
||
4958 | * @data: ioctl data |
||
4959 | * @file_priv: DRM file info |
||
4960 | * |
||
4961 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can |
||
4962 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. |
||
4963 | * |
||
4964 | * Called by the user via ioctl. |
||
4965 | * |
||
4966 | * Returns: |
||
5271 | serge | 4967 | * Zero on success, negative errno on failure. |
5060 | serge | 4968 | */ |
1123 | serge | 4969 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4970 | void *data, struct drm_file *file_priv) |
||
4971 | { |
||
4972 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
4973 | struct drm_crtc *crtc; |
||
4974 | void *r_base, *g_base, *b_base; |
||
4975 | int size; |
||
4976 | int ret = 0; |
||
4977 | |||
1963 | serge | 4978 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4979 | return -EINVAL; |
||
4980 | |||
3480 | Serge | 4981 | drm_modeset_lock_all(dev); |
5060 | serge | 4982 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4983 | if (!crtc) { |
||
4560 | Serge | 4984 | ret = -ENOENT; |
1123 | serge | 4985 | goto out; |
4986 | } |
||
4987 | |||
3031 | serge | 4988 | if (crtc->funcs->gamma_set == NULL) { |
4989 | ret = -ENOSYS; |
||
4990 | goto out; |
||
4991 | } |
||
4992 | |||
1123 | serge | 4993 | /* memcpy into gamma store */ |
4994 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
4995 | ret = -EINVAL; |
||
4996 | goto out; |
||
4997 | } |
||
4998 | |||
4999 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
5000 | r_base = crtc->gamma_store; |
||
5001 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
||
5002 | ret = -EFAULT; |
||
5003 | goto out; |
||
5004 | } |
||
5005 | |||
5006 | g_base = r_base + size; |
||
5007 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
||
5008 | ret = -EFAULT; |
||
5009 | goto out; |
||
5010 | } |
||
5011 | |||
5012 | b_base = g_base + size; |
||
5013 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
||
5014 | ret = -EFAULT; |
||
5015 | goto out; |
||
5016 | } |
||
5017 | |||
1963 | serge | 5018 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
1123 | serge | 5019 | |
5020 | out: |
||
3480 | Serge | 5021 | drm_modeset_unlock_all(dev); |
1123 | serge | 5022 | return ret; |
5023 | |||
5024 | } |
||
5025 | |||
5060 | serge | 5026 | /** |
5027 | * drm_mode_gamma_get_ioctl - get the gamma table |
||
5028 | * @dev: DRM device |
||
5029 | * @data: ioctl data |
||
5030 | * @file_priv: DRM file info |
||
5031 | * |
||
5032 | * Copy the current gamma table into the storage provided. This also provides |
||
5033 | * the gamma table size the driver expects, which can be used to size the |
||
5034 | * allocated storage. |
||
5035 | * |
||
5036 | * Called by the user via ioctl. |
||
5037 | * |
||
5038 | * Returns: |
||
5271 | serge | 5039 | * Zero on success, negative errno on failure. |
5060 | serge | 5040 | */ |
1123 | serge | 5041 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
5042 | void *data, struct drm_file *file_priv) |
||
5043 | { |
||
5044 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
5045 | struct drm_crtc *crtc; |
||
5046 | void *r_base, *g_base, *b_base; |
||
5047 | int size; |
||
5048 | int ret = 0; |
||
5049 | |||
1963 | serge | 5050 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5051 | return -EINVAL; |
||
5052 | |||
3480 | Serge | 5053 | drm_modeset_lock_all(dev); |
5060 | serge | 5054 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5055 | if (!crtc) { |
||
4560 | Serge | 5056 | ret = -ENOENT; |
1123 | serge | 5057 | goto out; |
5058 | } |
||
5059 | |||
5060 | /* memcpy into gamma store */ |
||
5061 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
5062 | ret = -EINVAL; |
||
5063 | goto out; |
||
5064 | } |
||
5065 | |||
5066 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
5067 | r_base = crtc->gamma_store; |
||
5068 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
||
5069 | ret = -EFAULT; |
||
5070 | goto out; |
||
5071 | } |
||
5072 | |||
5073 | g_base = r_base + size; |
||
5074 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
||
5075 | ret = -EFAULT; |
||
5076 | goto out; |
||
5077 | } |
||
5078 | |||
5079 | b_base = g_base + size; |
||
5080 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
||
5081 | ret = -EFAULT; |
||
5082 | goto out; |
||
5083 | } |
||
5084 | out: |
||
3480 | Serge | 5085 | drm_modeset_unlock_all(dev); |
1123 | serge | 5086 | return ret; |
5087 | } |
||
5088 | |||
5089 | #endif |
||
1179 | serge | 5090 | |
5091 | |||
5060 | serge | 5092 | /** |
5093 | * drm_mode_config_reset - call ->reset callbacks |
||
5094 | * @dev: drm device |
||
5095 | * |
||
5096 | * This functions calls all the crtc's, encoder's and connector's ->reset |
||
5097 | * callback. Drivers can use this in e.g. their driver load or resume code to |
||
5098 | * reset hardware and software state. |
||
5099 | */ |
||
1963 | serge | 5100 | void drm_mode_config_reset(struct drm_device *dev) |
5101 | { |
||
5102 | struct drm_crtc *crtc; |
||
5271 | serge | 5103 | struct drm_plane *plane; |
1963 | serge | 5104 | struct drm_encoder *encoder; |
5105 | struct drm_connector *connector; |
||
5106 | |||
6084 | serge | 5107 | drm_for_each_plane(plane, dev) |
5271 | serge | 5108 | if (plane->funcs->reset) |
5109 | plane->funcs->reset(plane); |
||
5110 | |||
6084 | serge | 5111 | drm_for_each_crtc(crtc, dev) |
1963 | serge | 5112 | if (crtc->funcs->reset) |
5113 | crtc->funcs->reset(crtc); |
||
5114 | |||
6084 | serge | 5115 | drm_for_each_encoder(encoder, dev) |
1963 | serge | 5116 | if (encoder->funcs->reset) |
5117 | encoder->funcs->reset(encoder); |
||
5118 | |||
6084 | serge | 5119 | mutex_lock(&dev->mode_config.mutex); |
5120 | drm_for_each_connector(connector, dev) |
||
1963 | serge | 5121 | if (connector->funcs->reset) |
5122 | connector->funcs->reset(connector); |
||
6084 | serge | 5123 | mutex_unlock(&dev->mode_config.mutex); |
1963 | serge | 5124 | } |
5125 | EXPORT_SYMBOL(drm_mode_config_reset); |
||
3031 | serge | 5126 | /* |
5127 | * Just need to support RGB formats here for compat with code that doesn't |
||
5128 | * use pixel formats directly yet. |
||
5129 | */ |
||
5130 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, |
||
5131 | int *bpp) |
||
5132 | { |
||
5133 | switch (format) { |
||
3480 | Serge | 5134 | case DRM_FORMAT_C8: |
3031 | serge | 5135 | case DRM_FORMAT_RGB332: |
5136 | case DRM_FORMAT_BGR233: |
||
5137 | *depth = 8; |
||
5138 | *bpp = 8; |
||
5139 | break; |
||
5140 | case DRM_FORMAT_XRGB1555: |
||
5141 | case DRM_FORMAT_XBGR1555: |
||
5142 | case DRM_FORMAT_RGBX5551: |
||
5143 | case DRM_FORMAT_BGRX5551: |
||
5144 | case DRM_FORMAT_ARGB1555: |
||
5145 | case DRM_FORMAT_ABGR1555: |
||
5146 | case DRM_FORMAT_RGBA5551: |
||
5147 | case DRM_FORMAT_BGRA5551: |
||
5148 | *depth = 15; |
||
5149 | *bpp = 16; |
||
5150 | break; |
||
5151 | case DRM_FORMAT_RGB565: |
||
5152 | case DRM_FORMAT_BGR565: |
||
5153 | *depth = 16; |
||
5154 | *bpp = 16; |
||
5155 | break; |
||
5156 | case DRM_FORMAT_RGB888: |
||
5157 | case DRM_FORMAT_BGR888: |
||
5158 | *depth = 24; |
||
5159 | *bpp = 24; |
||
5160 | break; |
||
5161 | case DRM_FORMAT_XRGB8888: |
||
5162 | case DRM_FORMAT_XBGR8888: |
||
5163 | case DRM_FORMAT_RGBX8888: |
||
5164 | case DRM_FORMAT_BGRX8888: |
||
5165 | *depth = 24; |
||
5166 | *bpp = 32; |
||
5167 | break; |
||
5168 | case DRM_FORMAT_XRGB2101010: |
||
5169 | case DRM_FORMAT_XBGR2101010: |
||
5170 | case DRM_FORMAT_RGBX1010102: |
||
5171 | case DRM_FORMAT_BGRX1010102: |
||
5172 | case DRM_FORMAT_ARGB2101010: |
||
5173 | case DRM_FORMAT_ABGR2101010: |
||
5174 | case DRM_FORMAT_RGBA1010102: |
||
5175 | case DRM_FORMAT_BGRA1010102: |
||
5176 | *depth = 30; |
||
5177 | *bpp = 32; |
||
5178 | break; |
||
5179 | case DRM_FORMAT_ARGB8888: |
||
5180 | case DRM_FORMAT_ABGR8888: |
||
5181 | case DRM_FORMAT_RGBA8888: |
||
5182 | case DRM_FORMAT_BGRA8888: |
||
5183 | *depth = 32; |
||
5184 | *bpp = 32; |
||
5185 | break; |
||
5186 | default: |
||
4560 | Serge | 5187 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5188 | drm_get_format_name(format)); |
||
3031 | serge | 5189 | *depth = 0; |
5190 | *bpp = 0; |
||
5191 | break; |
||
5192 | } |
||
5193 | } |
||
5194 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); |
||
5195 | |||
5196 | /** |
||
5197 | * drm_format_num_planes - get the number of planes for format |
||
5198 | * @format: pixel format (DRM_FORMAT_*) |
||
5199 | * |
||
5060 | serge | 5200 | * Returns: |
3031 | serge | 5201 | * The number of planes used by the specified pixel format. |
5202 | */ |
||
5203 | int drm_format_num_planes(uint32_t format) |
||
5204 | { |
||
5205 | switch (format) { |
||
5206 | case DRM_FORMAT_YUV410: |
||
5207 | case DRM_FORMAT_YVU410: |
||
5208 | case DRM_FORMAT_YUV411: |
||
5209 | case DRM_FORMAT_YVU411: |
||
5210 | case DRM_FORMAT_YUV420: |
||
5211 | case DRM_FORMAT_YVU420: |
||
5212 | case DRM_FORMAT_YUV422: |
||
5213 | case DRM_FORMAT_YVU422: |
||
5214 | case DRM_FORMAT_YUV444: |
||
5215 | case DRM_FORMAT_YVU444: |
||
5216 | return 3; |
||
5217 | case DRM_FORMAT_NV12: |
||
5218 | case DRM_FORMAT_NV21: |
||
5219 | case DRM_FORMAT_NV16: |
||
5220 | case DRM_FORMAT_NV61: |
||
5221 | case DRM_FORMAT_NV24: |
||
5222 | case DRM_FORMAT_NV42: |
||
5223 | return 2; |
||
5224 | default: |
||
5225 | return 1; |
||
5226 | } |
||
5227 | } |
||
5228 | EXPORT_SYMBOL(drm_format_num_planes); |
||
5229 | |||
5230 | /** |
||
5231 | * drm_format_plane_cpp - determine the bytes per pixel value |
||
5232 | * @format: pixel format (DRM_FORMAT_*) |
||
5233 | * @plane: plane index |
||
5234 | * |
||
5060 | serge | 5235 | * Returns: |
3031 | serge | 5236 | * The bytes per pixel value for the specified plane. |
5237 | */ |
||
5238 | int drm_format_plane_cpp(uint32_t format, int plane) |
||
5239 | { |
||
5240 | unsigned int depth; |
||
5241 | int bpp; |
||
5242 | |||
5243 | if (plane >= drm_format_num_planes(format)) |
||
5244 | return 0; |
||
5245 | |||
5246 | switch (format) { |
||
5247 | case DRM_FORMAT_YUYV: |
||
5248 | case DRM_FORMAT_YVYU: |
||
5249 | case DRM_FORMAT_UYVY: |
||
5250 | case DRM_FORMAT_VYUY: |
||
5251 | return 2; |
||
5252 | case DRM_FORMAT_NV12: |
||
5253 | case DRM_FORMAT_NV21: |
||
5254 | case DRM_FORMAT_NV16: |
||
5255 | case DRM_FORMAT_NV61: |
||
5256 | case DRM_FORMAT_NV24: |
||
5257 | case DRM_FORMAT_NV42: |
||
5258 | return plane ? 2 : 1; |
||
5259 | case DRM_FORMAT_YUV410: |
||
5260 | case DRM_FORMAT_YVU410: |
||
5261 | case DRM_FORMAT_YUV411: |
||
5262 | case DRM_FORMAT_YVU411: |
||
5263 | case DRM_FORMAT_YUV420: |
||
5264 | case DRM_FORMAT_YVU420: |
||
5265 | case DRM_FORMAT_YUV422: |
||
5266 | case DRM_FORMAT_YVU422: |
||
5267 | case DRM_FORMAT_YUV444: |
||
5268 | case DRM_FORMAT_YVU444: |
||
5269 | return 1; |
||
5270 | default: |
||
5271 | drm_fb_get_bpp_depth(format, &depth, &bpp); |
||
5272 | return bpp >> 3; |
||
5273 | } |
||
5274 | } |
||
5275 | EXPORT_SYMBOL(drm_format_plane_cpp); |
||
5276 | |||
5277 | /** |
||
5278 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor |
||
5279 | * @format: pixel format (DRM_FORMAT_*) |
||
5280 | * |
||
5060 | serge | 5281 | * Returns: |
3031 | serge | 5282 | * The horizontal chroma subsampling factor for the |
5283 | * specified pixel format. |
||
5284 | */ |
||
5285 | int drm_format_horz_chroma_subsampling(uint32_t format) |
||
5286 | { |
||
5287 | switch (format) { |
||
5288 | case DRM_FORMAT_YUV411: |
||
5289 | case DRM_FORMAT_YVU411: |
||
5290 | case DRM_FORMAT_YUV410: |
||
5291 | case DRM_FORMAT_YVU410: |
||
5292 | return 4; |
||
5293 | case DRM_FORMAT_YUYV: |
||
5294 | case DRM_FORMAT_YVYU: |
||
5295 | case DRM_FORMAT_UYVY: |
||
5296 | case DRM_FORMAT_VYUY: |
||
5297 | case DRM_FORMAT_NV12: |
||
5298 | case DRM_FORMAT_NV21: |
||
5299 | case DRM_FORMAT_NV16: |
||
5300 | case DRM_FORMAT_NV61: |
||
5301 | case DRM_FORMAT_YUV422: |
||
5302 | case DRM_FORMAT_YVU422: |
||
5303 | case DRM_FORMAT_YUV420: |
||
5304 | case DRM_FORMAT_YVU420: |
||
5305 | return 2; |
||
5306 | default: |
||
5307 | return 1; |
||
5308 | } |
||
5309 | } |
||
5310 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); |
||
5311 | |||
5312 | /** |
||
5313 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor |
||
5314 | * @format: pixel format (DRM_FORMAT_*) |
||
5315 | * |
||
5060 | serge | 5316 | * Returns: |
3031 | serge | 5317 | * The vertical chroma subsampling factor for the |
5318 | * specified pixel format. |
||
5319 | */ |
||
5320 | int drm_format_vert_chroma_subsampling(uint32_t format) |
||
5321 | { |
||
5322 | switch (format) { |
||
5323 | case DRM_FORMAT_YUV410: |
||
5324 | case DRM_FORMAT_YVU410: |
||
5325 | return 4; |
||
5326 | case DRM_FORMAT_YUV420: |
||
5327 | case DRM_FORMAT_YVU420: |
||
5328 | case DRM_FORMAT_NV12: |
||
5329 | case DRM_FORMAT_NV21: |
||
5330 | return 2; |
||
5331 | default: |
||
5332 | return 1; |
||
5333 | } |
||
5334 | } |
||
5335 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |
||
3746 | Serge | 5336 | |
5337 | /** |
||
5271 | serge | 5338 | * drm_rotation_simplify() - Try to simplify the rotation |
5339 | * @rotation: Rotation to be simplified |
||
5340 | * @supported_rotations: Supported rotations |
||
5341 | * |
||
5342 | * Attempt to simplify the rotation to a form that is supported. |
||
5343 | * Eg. if the hardware supports everything except DRM_REFLECT_X |
||
5344 | * one could call this function like this: |
||
5345 | * |
||
5346 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | |
||
5347 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | |
||
5348 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); |
||
5349 | * |
||
5350 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of |
||
5351 | * transforms the hardware supports, this function may not |
||
5352 | * be able to produce a supported transform, so the caller should |
||
5353 | * check the result afterwards. |
||
5354 | */ |
||
5355 | unsigned int drm_rotation_simplify(unsigned int rotation, |
||
5356 | unsigned int supported_rotations) |
||
5357 | { |
||
5358 | if (rotation & ~supported_rotations) { |
||
5359 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); |
||
6084 | serge | 5360 | rotation = (rotation & DRM_REFLECT_MASK) | |
5361 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); |
||
5271 | serge | 5362 | } |
5363 | |||
5364 | return rotation; |
||
5365 | } |
||
5366 | EXPORT_SYMBOL(drm_rotation_simplify); |
||
5367 | |||
5368 | /** |
||
3746 | Serge | 5369 | * drm_mode_config_init - initialize DRM mode_configuration structure |
5370 | * @dev: DRM device |
||
5371 | * |
||
5372 | * Initialize @dev's mode_config structure, used for tracking the graphics |
||
5373 | * configuration of @dev. |
||
5374 | * |
||
5375 | * Since this initializes the modeset locks, no locking is possible. Which is no |
||
5376 | * problem, since this should happen single threaded at init time. It is the |
||
5377 | * driver's problem to ensure this guarantee. |
||
5378 | * |
||
5379 | */ |
||
5380 | void drm_mode_config_init(struct drm_device *dev) |
||
5381 | { |
||
5382 | mutex_init(&dev->mode_config.mutex); |
||
5060 | serge | 5383 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
3746 | Serge | 5384 | mutex_init(&dev->mode_config.idr_mutex); |
5385 | mutex_init(&dev->mode_config.fb_lock); |
||
6084 | serge | 5386 | mutex_init(&dev->mode_config.blob_lock); |
3746 | Serge | 5387 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5388 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
||
5389 | INIT_LIST_HEAD(&dev->mode_config.connector_list); |
||
5390 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
||
5391 | INIT_LIST_HEAD(&dev->mode_config.property_list); |
||
5392 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
||
5393 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
||
5394 | idr_init(&dev->mode_config.crtc_idr); |
||
5271 | serge | 5395 | idr_init(&dev->mode_config.tile_idr); |
6937 | serge | 5396 | ida_init(&dev->mode_config.connector_ida); |
3746 | Serge | 5397 | |
5398 | drm_modeset_lock_all(dev); |
||
6084 | serge | 5399 | drm_mode_create_standard_properties(dev); |
3746 | Serge | 5400 | drm_modeset_unlock_all(dev); |
5401 | |||
5402 | /* Just to be sure */ |
||
5403 | dev->mode_config.num_fb = 0; |
||
5404 | dev->mode_config.num_connector = 0; |
||
5405 | dev->mode_config.num_crtc = 0; |
||
5406 | dev->mode_config.num_encoder = 0; |
||
5060 | serge | 5407 | dev->mode_config.num_overlay_plane = 0; |
5408 | dev->mode_config.num_total_plane = 0; |
||
3746 | Serge | 5409 | } |
5410 | EXPORT_SYMBOL(drm_mode_config_init); |
||
5411 | |||
5060 | serge | 5412 | /** |
5413 | * drm_mode_config_cleanup - free up DRM mode_config info |
||
5414 | * @dev: DRM device |
||
5415 | * |
||
5416 | * Free up all the connectors and CRTCs associated with this DRM device, then |
||
5417 | * free up the framebuffers and associated buffer objects. |
||
5418 | * |
||
5419 | * Note that since this /should/ happen single-threaded at driver/device |
||
5420 | * teardown time, no locking is required. It's the driver's job to ensure that |
||
5421 | * this guarantee actually holds true. |
||
5422 | * |
||
5423 | * FIXME: cleanup any dangling user buffer objects too |
||
5424 | */ |
||
5271 | serge | 5425 | void drm_mode_config_cleanup(struct drm_device *dev) |
5426 | { |
||
5427 | struct drm_connector *connector, *ot; |
||
5428 | struct drm_crtc *crtc, *ct; |
||
5429 | struct drm_encoder *encoder, *enct; |
||
5430 | struct drm_framebuffer *fb, *fbt; |
||
5431 | struct drm_property *property, *pt; |
||
5432 | struct drm_property_blob *blob, *bt; |
||
5433 | struct drm_plane *plane, *plt; |
||
5434 | |||
5435 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
||
5436 | head) { |
||
5437 | encoder->funcs->destroy(encoder); |
||
5438 | } |
||
5439 | |||
5440 | list_for_each_entry_safe(connector, ot, |
||
5441 | &dev->mode_config.connector_list, head) { |
||
5442 | connector->funcs->destroy(connector); |
||
5443 | } |
||
5444 | |||
5445 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
||
5446 | head) { |
||
5447 | drm_property_destroy(dev, property); |
||
5448 | } |
||
5449 | |||
5450 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
||
6084 | serge | 5451 | head_global) { |
5452 | drm_property_unreference_blob(blob); |
||
5271 | serge | 5453 | } |
5454 | |||
5455 | /* |
||
5456 | * Single-threaded teardown context, so it's not required to grab the |
||
5457 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
||
5458 | * would actually deadlock with the drm_framebuffer_cleanup function. |
||
5459 | * |
||
5460 | * Also, if there are any framebuffers left, that's a driver leak now, |
||
5461 | * so politely WARN about this. |
||
5462 | */ |
||
5463 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); |
||
5464 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
||
6084 | serge | 5465 | drm_framebuffer_free(&fb->refcount); |
5271 | serge | 5466 | } |
5467 | |||
5468 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
||
5469 | head) { |
||
5470 | plane->funcs->destroy(plane); |
||
5471 | } |
||
5472 | |||
5473 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
||
5474 | crtc->funcs->destroy(crtc); |
||
5475 | } |
||
5476 | |||
6937 | serge | 5477 | ida_destroy(&dev->mode_config.connector_ida); |
5271 | serge | 5478 | idr_destroy(&dev->mode_config.tile_idr); |
5479 | idr_destroy(&dev->mode_config.crtc_idr); |
||
5480 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
||
5481 | } |
||
5482 | EXPORT_SYMBOL(drm_mode_config_cleanup); |
||
5483 | |||
5484 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, |
||
5485 | unsigned int supported_rotations) |
||
5486 | { |
||
5487 | static const struct drm_prop_enum_list props[] = { |
||
5488 | { DRM_ROTATE_0, "rotate-0" }, |
||
5489 | { DRM_ROTATE_90, "rotate-90" }, |
||
5490 | { DRM_ROTATE_180, "rotate-180" }, |
||
5491 | { DRM_ROTATE_270, "rotate-270" }, |
||
5492 | { DRM_REFLECT_X, "reflect-x" }, |
||
5493 | { DRM_REFLECT_Y, "reflect-y" }, |
||
5494 | }; |
||
5495 | |||
5496 | return drm_property_create_bitmask(dev, 0, "rotation", |
||
5497 | props, ARRAY_SIZE(props), |
||
5498 | supported_rotations); |
||
5499 | } |
||
5500 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |
||
5501 | |||
5502 | /** |
||
5503 | * DOC: Tile group |
||
5504 | * |
||
5505 | * Tile groups are used to represent tiled monitors with a unique |
||
5506 | * integer identifier. Tiled monitors using DisplayID v1.3 have |
||
5507 | * a unique 8-byte handle, we store this in a tile group, so we |
||
5508 | * have a common identifier for all tiles in a monitor group. |
||
5509 | */ |
||
5510 | static void drm_tile_group_free(struct kref *kref) |
||
5511 | { |
||
5512 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); |
||
5513 | struct drm_device *dev = tg->dev; |
||
5514 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5515 | idr_remove(&dev->mode_config.tile_idr, tg->id); |
||
5516 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5517 | kfree(tg); |
||
5518 | } |
||
5519 | |||
5520 | /** |
||
5521 | * drm_mode_put_tile_group - drop a reference to a tile group. |
||
5522 | * @dev: DRM device |
||
5523 | * @tg: tile group to drop reference to. |
||
5524 | * |
||
5525 | * drop reference to tile group and free if 0. |
||
5526 | */ |
||
5527 | void drm_mode_put_tile_group(struct drm_device *dev, |
||
5528 | struct drm_tile_group *tg) |
||
5529 | { |
||
5530 | kref_put(&tg->refcount, drm_tile_group_free); |
||
5531 | } |
||
5532 | |||
5533 | /** |
||
5534 | * drm_mode_get_tile_group - get a reference to an existing tile group |
||
5535 | * @dev: DRM device |
||
5536 | * @topology: 8-bytes unique per monitor. |
||
5537 | * |
||
5538 | * Use the unique bytes to get a reference to an existing tile group. |
||
5539 | * |
||
5540 | * RETURNS: |
||
5541 | * tile group or NULL if not found. |
||
5542 | */ |
||
5543 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, |
||
5544 | char topology[8]) |
||
5545 | { |
||
5546 | struct drm_tile_group *tg; |
||
5547 | int id; |
||
5548 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5549 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { |
||
5550 | if (!memcmp(tg->group_data, topology, 8)) { |
||
6084 | serge | 5551 | if (!kref_get_unless_zero(&tg->refcount)) |
5552 | tg = NULL; |
||
5271 | serge | 5553 | mutex_unlock(&dev->mode_config.idr_mutex); |
5554 | return tg; |
||
5555 | } |
||
5556 | } |
||
5557 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5558 | return NULL; |
||
5559 | } |
||
6084 | serge | 5560 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
5271 | serge | 5561 | |
5562 | /** |
||
5563 | * drm_mode_create_tile_group - create a tile group from a displayid description |
||
5564 | * @dev: DRM device |
||
5565 | * @topology: 8-bytes unique per monitor. |
||
5566 | * |
||
5567 | * Create a tile group for the unique monitor, and get a unique |
||
5568 | * identifier for the tile group. |
||
5569 | * |
||
5570 | * RETURNS: |
||
5571 | * new tile group or error. |
||
5572 | */ |
||
5573 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, |
||
5574 | char topology[8]) |
||
5575 | { |
||
5576 | struct drm_tile_group *tg; |
||
5577 | int ret; |
||
5578 | |||
5579 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); |
||
5580 | if (!tg) |
||
5581 | return ERR_PTR(-ENOMEM); |
||
5582 | |||
5583 | kref_init(&tg->refcount); |
||
5584 | memcpy(tg->group_data, topology, 8); |
||
5585 | tg->dev = dev; |
||
5586 | |||
5587 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5588 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); |
||
5589 | if (ret >= 0) { |
||
5590 | tg->id = ret; |
||
5591 | } else { |
||
5592 | kfree(tg); |
||
5593 | tg = ERR_PTR(ret); |
||
5594 | } |
||
5595 | |||
5596 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5597 | return tg; |
||
5598 | } |
||
6084 | serge | 5599 | EXPORT_SYMBOL(drm_mode_create_tile_group);>>>><>>>>>>>><>>>>=>=>>>>>><>><>><>><>><>><>>>>>>>>><>><>>>>> |