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