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