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Rev | Author | Line No. | Line |
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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 |
1123 | serge | 41 | |
5060 | serge | 42 | #include "drm_crtc_internal.h" |
5271 | serge | 43 | #include "drm_internal.h" |
5060 | serge | 44 | |
45 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
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46 | struct drm_mode_fb_cmd2 *r, |
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47 | struct drm_file *file_priv); |
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48 | |||
1123 | serge | 49 | /* Avoid boilerplate. I'm tired of typing. */ |
50 | #define DRM_ENUM_NAME_FN(fnname, list) \ |
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4075 | Serge | 51 | const char *fnname(int val) \ |
1123 | serge | 52 | { \ |
53 | int i; \ |
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54 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
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55 | if (list[i].type == val) \ |
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56 | return list[i].name; \ |
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57 | } \ |
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58 | return "(unknown)"; \ |
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59 | } |
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60 | |||
61 | /* |
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62 | * Global properties |
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63 | */ |
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4075 | Serge | 64 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
1123 | serge | 65 | { { DRM_MODE_DPMS_ON, "On" }, |
66 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
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67 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
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68 | { DRM_MODE_DPMS_OFF, "Off" } |
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69 | }; |
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70 | |||
71 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
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72 | |||
5060 | serge | 73 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
74 | { |
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75 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
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76 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, |
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77 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, |
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78 | }; |
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79 | |||
1123 | serge | 80 | /* |
81 | * Optional properties |
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82 | */ |
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4075 | Serge | 83 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
1123 | serge | 84 | { |
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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4075 | Serge | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
1123 | serge | 101 | { |
102 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
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103 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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104 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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105 | }; |
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106 | |||
107 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
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108 | |||
4075 | Serge | 109 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
1123 | serge | 110 | { |
111 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
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112 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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113 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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114 | }; |
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115 | |||
116 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
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117 | drm_dvi_i_subconnector_enum_list) |
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118 | |||
4075 | Serge | 119 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
1123 | serge | 120 | { |
121 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
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122 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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123 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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124 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 125 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 126 | }; |
127 | |||
128 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
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129 | |||
4075 | Serge | 130 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
1123 | serge | 131 | { |
132 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
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133 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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134 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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135 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 136 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 137 | }; |
138 | |||
139 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
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140 | drm_tv_subconnector_enum_list) |
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141 | |||
4075 | Serge | 142 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
1321 | serge | 143 | { DRM_MODE_DIRTY_OFF, "Off" }, |
144 | { DRM_MODE_DIRTY_ON, "On" }, |
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145 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, |
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146 | }; |
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147 | |||
1123 | serge | 148 | struct drm_conn_prop_enum_list { |
149 | int type; |
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4075 | Serge | 150 | const char *name; |
4104 | Serge | 151 | struct ida ida; |
1123 | serge | 152 | }; |
153 | |||
154 | /* |
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155 | * Connector and encoder types. |
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156 | */ |
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157 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = |
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4104 | Serge | 158 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
159 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
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160 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, |
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161 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, |
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162 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, |
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163 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, |
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164 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, |
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165 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, |
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166 | { DRM_MODE_CONNECTOR_Component, "Component" }, |
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167 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, |
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168 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, |
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169 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, |
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170 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, |
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171 | { DRM_MODE_CONNECTOR_TV, "TV" }, |
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172 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, |
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173 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, |
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4560 | Serge | 174 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
1123 | serge | 175 | }; |
176 | |||
4075 | Serge | 177 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
1123 | serge | 178 | { { DRM_MODE_ENCODER_NONE, "None" }, |
179 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
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180 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, |
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181 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, |
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182 | { DRM_MODE_ENCODER_TVDAC, "TV" }, |
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3031 | serge | 183 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
4560 | Serge | 184 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
5060 | serge | 185 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
1123 | serge | 186 | }; |
187 | |||
5060 | serge | 188 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
189 | { |
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190 | { SubPixelUnknown, "Unknown" }, |
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191 | { SubPixelHorizontalRGB, "Horizontal RGB" }, |
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192 | { SubPixelHorizontalBGR, "Horizontal BGR" }, |
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193 | { SubPixelVerticalRGB, "Vertical RGB" }, |
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194 | { SubPixelVerticalBGR, "Vertical BGR" }, |
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195 | { SubPixelNone, "None" }, |
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196 | }; |
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197 | |||
4104 | Serge | 198 | void drm_connector_ida_init(void) |
199 | { |
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200 | int i; |
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201 | |||
202 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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203 | ida_init(&drm_connector_enum_list[i].ida); |
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204 | } |
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205 | |||
206 | void drm_connector_ida_destroy(void) |
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207 | { |
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208 | int i; |
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209 | |||
210 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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211 | ida_destroy(&drm_connector_enum_list[i].ida); |
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212 | } |
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213 | |||
5060 | serge | 214 | /** |
215 | * drm_get_connector_status_name - return a string for connector status |
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216 | * @status: connector status to compute name of |
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217 | * |
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218 | * In contrast to the other drm_get_*_name functions this one here returns a |
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219 | * const pointer and hence is threadsafe. |
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220 | */ |
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4075 | Serge | 221 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
1123 | serge | 222 | { |
223 | if (status == connector_status_connected) |
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224 | return "connected"; |
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225 | else if (status == connector_status_disconnected) |
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226 | return "disconnected"; |
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227 | else |
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228 | return "unknown"; |
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229 | } |
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3764 | Serge | 230 | EXPORT_SYMBOL(drm_get_connector_status_name); |
1123 | serge | 231 | |
5060 | serge | 232 | /** |
233 | * drm_get_subpixel_order_name - return a string for a given subpixel enum |
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234 | * @order: enum of subpixel_order |
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235 | * |
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236 | * Note you could abuse this and return something out of bounds, but that |
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237 | * would be a caller error. No unscrubbed user data should make it here. |
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238 | */ |
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239 | const char *drm_get_subpixel_order_name(enum subpixel_order order) |
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240 | { |
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241 | return drm_subpixel_enum_list[order].name; |
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242 | } |
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243 | EXPORT_SYMBOL(drm_get_subpixel_order_name); |
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244 | |||
4075 | Serge | 245 | static char printable_char(int c) |
246 | { |
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247 | return isascii(c) && isprint(c) ? c : '?'; |
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248 | } |
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249 | |||
5060 | serge | 250 | /** |
251 | * drm_get_format_name - return a string for drm fourcc format |
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252 | * @format: format to compute name of |
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253 | * |
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254 | * Note that the buffer used by this function is globally shared and owned by |
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255 | * the function itself. |
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256 | * |
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257 | * FIXME: This isn't really multithreading safe. |
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258 | */ |
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4075 | Serge | 259 | const char *drm_get_format_name(uint32_t format) |
260 | { |
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261 | static char buf[32]; |
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262 | |||
263 | snprintf(buf, sizeof(buf), |
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264 | "%c%c%c%c %s-endian (0x%08x)", |
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265 | printable_char(format & 0xff), |
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266 | printable_char((format >> 8) & 0xff), |
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267 | printable_char((format >> 16) & 0xff), |
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268 | printable_char((format >> 24) & 0x7f), |
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269 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", |
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270 | format); |
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271 | |||
272 | return buf; |
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273 | } |
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274 | EXPORT_SYMBOL(drm_get_format_name); |
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275 | |||
5060 | serge | 276 | /* |
277 | * Internal function to assign a slot in the object idr and optionally |
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278 | * register the object into the idr. |
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1123 | serge | 279 | */ |
5060 | serge | 280 | static int drm_mode_object_get_reg(struct drm_device *dev, |
281 | struct drm_mode_object *obj, |
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282 | uint32_t obj_type, |
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283 | bool register_obj) |
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1123 | serge | 284 | { |
285 | int ret; |
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286 | |||
3480 | Serge | 287 | mutex_lock(&dev->mode_config.idr_mutex); |
5060 | serge | 288 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); |
3480 | Serge | 289 | if (ret >= 0) { |
290 | /* |
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291 | * Set up the object linking under the protection of the idr |
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292 | * lock so that other users can't see inconsistent state. |
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293 | */ |
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294 | obj->id = ret; |
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295 | obj->type = obj_type; |
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1123 | serge | 296 | } |
1179 | serge | 297 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 298 | |
3480 | Serge | 299 | return ret < 0 ? ret : 0; |
1123 | serge | 300 | } |
301 | |||
302 | /** |
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5060 | serge | 303 | * drm_mode_object_get - allocate a new modeset identifier |
304 | * @dev: DRM device |
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305 | * @obj: object pointer, used to generate unique ID |
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306 | * @obj_type: object type |
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307 | * |
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308 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
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309 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
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310 | * modeset identifiers are _not_ reference counted. Hence don't use this for |
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311 | * reference counted modeset objects like framebuffers. |
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312 | * |
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313 | * Returns: |
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314 | * New unique (relative to other objects in @dev) integer identifier for the |
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315 | * object. |
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316 | */ |
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317 | int drm_mode_object_get(struct drm_device *dev, |
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318 | struct drm_mode_object *obj, uint32_t obj_type) |
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319 | { |
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320 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
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321 | } |
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322 | |||
323 | static void drm_mode_object_register(struct drm_device *dev, |
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324 | struct drm_mode_object *obj) |
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325 | { |
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326 | mutex_lock(&dev->mode_config.idr_mutex); |
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327 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
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328 | mutex_unlock(&dev->mode_config.idr_mutex); |
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329 | } |
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330 | |||
331 | /** |
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3480 | Serge | 332 | * drm_mode_object_put - free a modeset identifer |
1123 | serge | 333 | * @dev: DRM device |
3480 | Serge | 334 | * @object: object to free |
1123 | serge | 335 | * |
5060 | serge | 336 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
337 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this |
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338 | * for reference counted modeset objects like framebuffers. |
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1123 | serge | 339 | */ |
5060 | serge | 340 | void drm_mode_object_put(struct drm_device *dev, |
1123 | serge | 341 | struct drm_mode_object *object) |
342 | { |
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1179 | serge | 343 | mutex_lock(&dev->mode_config.idr_mutex); |
1123 | serge | 344 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
1179 | serge | 345 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 346 | } |
347 | |||
5060 | serge | 348 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
349 | uint32_t id, uint32_t type) |
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350 | { |
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351 | struct drm_mode_object *obj = NULL; |
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352 | |||
353 | mutex_lock(&dev->mode_config.idr_mutex); |
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354 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
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355 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
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356 | obj = NULL; |
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357 | if (obj && obj->id != id) |
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358 | obj = NULL; |
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359 | /* don't leak out unref'd fb's */ |
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360 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) |
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361 | obj = NULL; |
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362 | mutex_unlock(&dev->mode_config.idr_mutex); |
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363 | |||
364 | return obj; |
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365 | } |
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366 | |||
3480 | Serge | 367 | /** |
368 | * drm_mode_object_find - look up a drm object with static lifetime |
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369 | * @dev: drm device |
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370 | * @id: id of the mode object |
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371 | * @type: type of the mode object |
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372 | * |
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373 | * Note that framebuffers cannot be looked up with this functions - since those |
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5060 | serge | 374 | * are reference counted, they need special treatment. Even with |
375 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL |
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376 | * rather than WARN_ON()). |
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3480 | Serge | 377 | */ |
1321 | serge | 378 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
379 | uint32_t id, uint32_t type) |
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1123 | serge | 380 | { |
381 | struct drm_mode_object *obj = NULL; |
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382 | |||
3480 | Serge | 383 | /* Framebuffers are reference counted and need their own lookup |
384 | * function.*/ |
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385 | WARN_ON(type == DRM_MODE_OBJECT_FB); |
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5060 | serge | 386 | obj = _object_find(dev, id, type); |
1123 | serge | 387 | return obj; |
388 | } |
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389 | EXPORT_SYMBOL(drm_mode_object_find); |
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390 | |||
391 | /** |
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392 | * drm_framebuffer_init - initialize a framebuffer |
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393 | * @dev: DRM device |
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3480 | Serge | 394 | * @fb: framebuffer to be initialized |
395 | * @funcs: ... with these functions |
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1123 | serge | 396 | * |
397 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
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398 | * functions & device file and adds it to the master fd list. |
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399 | * |
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3480 | Serge | 400 | * IMPORTANT: |
401 | * This functions publishes the fb and makes it available for concurrent access |
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402 | * by other users. Which means by this point the fb _must_ be fully set up - |
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403 | * since all the fb attributes are invariant over its lifetime, no further |
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404 | * locking but only correct reference counting is required. |
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405 | * |
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5060 | serge | 406 | * Returns: |
1321 | serge | 407 | * Zero on success, error code on failure. |
1123 | serge | 408 | */ |
409 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
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410 | const struct drm_framebuffer_funcs *funcs) |
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411 | { |
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412 | int ret; |
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1963 | serge | 413 | |
3480 | Serge | 414 | mutex_lock(&dev->mode_config.fb_lock); |
415 | kref_init(&fb->refcount); |
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416 | INIT_LIST_HEAD(&fb->filp_head); |
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417 | fb->dev = dev; |
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418 | fb->funcs = funcs; |
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419 | |||
1123 | serge | 420 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
3031 | serge | 421 | if (ret) |
3480 | Serge | 422 | goto out; |
1123 | serge | 423 | |
424 | dev->mode_config.num_fb++; |
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425 | list_add(&fb->head, &dev->mode_config.fb_list); |
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3480 | Serge | 426 | out: |
427 | mutex_unlock(&dev->mode_config.fb_lock); |
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1123 | serge | 428 | |
429 | return 0; |
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430 | } |
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431 | EXPORT_SYMBOL(drm_framebuffer_init); |
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432 | |||
5271 | serge | 433 | /* dev->mode_config.fb_lock must be held! */ |
434 | static void __drm_framebuffer_unregister(struct drm_device *dev, |
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435 | struct drm_framebuffer *fb) |
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436 | { |
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437 | mutex_lock(&dev->mode_config.idr_mutex); |
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438 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); |
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439 | mutex_unlock(&dev->mode_config.idr_mutex); |
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440 | |||
441 | fb->base.id = 0; |
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442 | } |
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443 | |||
3480 | Serge | 444 | static void drm_framebuffer_free(struct kref *kref) |
445 | { |
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446 | struct drm_framebuffer *fb = |
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447 | container_of(kref, struct drm_framebuffer, refcount); |
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5271 | serge | 448 | struct drm_device *dev = fb->dev; |
449 | |||
450 | /* |
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451 | * The lookup idr holds a weak reference, which has not necessarily been |
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452 | * removed at this point. Check for that. |
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453 | */ |
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454 | mutex_lock(&dev->mode_config.fb_lock); |
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455 | if (fb->base.id) { |
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456 | /* Mark fb as reaped and drop idr ref. */ |
||
457 | __drm_framebuffer_unregister(dev, fb); |
||
458 | } |
||
459 | mutex_unlock(&dev->mode_config.fb_lock); |
||
460 | |||
3480 | Serge | 461 | fb->funcs->destroy(fb); |
462 | } |
||
463 | |||
464 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
||
465 | uint32_t id) |
||
466 | { |
||
467 | struct drm_mode_object *obj = NULL; |
||
468 | struct drm_framebuffer *fb; |
||
469 | |||
470 | mutex_lock(&dev->mode_config.idr_mutex); |
||
471 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
||
472 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) |
||
473 | fb = NULL; |
||
474 | else |
||
475 | fb = obj_to_fb(obj); |
||
476 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
477 | |||
478 | return fb; |
||
479 | } |
||
480 | |||
1123 | serge | 481 | /** |
3480 | Serge | 482 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference |
483 | * @dev: drm device |
||
484 | * @id: id of the fb object |
||
485 | * |
||
486 | * If successful, this grabs an additional reference to the framebuffer - |
||
487 | * callers need to make sure to eventually unreference the returned framebuffer |
||
5060 | serge | 488 | * again, using @drm_framebuffer_unreference. |
3480 | Serge | 489 | */ |
490 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, |
||
491 | uint32_t id) |
||
492 | { |
||
493 | struct drm_framebuffer *fb; |
||
494 | |||
495 | mutex_lock(&dev->mode_config.fb_lock); |
||
496 | fb = __drm_framebuffer_lookup(dev, id); |
||
497 | if (fb) |
||
4075 | Serge | 498 | drm_framebuffer_reference(fb); |
3480 | Serge | 499 | mutex_unlock(&dev->mode_config.fb_lock); |
500 | |||
501 | return fb; |
||
502 | } |
||
503 | EXPORT_SYMBOL(drm_framebuffer_lookup); |
||
504 | |||
505 | /** |
||
506 | * drm_framebuffer_unreference - unref a framebuffer |
||
507 | * @fb: framebuffer to unref |
||
508 | * |
||
509 | * This functions decrements the fb's refcount and frees it if it drops to zero. |
||
510 | */ |
||
511 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) |
||
512 | { |
||
5060 | serge | 513 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 514 | kref_put(&fb->refcount, drm_framebuffer_free); |
515 | } |
||
516 | EXPORT_SYMBOL(drm_framebuffer_unreference); |
||
517 | |||
518 | /** |
||
519 | * drm_framebuffer_reference - incr the fb refcnt |
||
520 | * @fb: framebuffer |
||
5060 | serge | 521 | * |
522 | * This functions increments the fb's refcount. |
||
3480 | Serge | 523 | */ |
524 | void drm_framebuffer_reference(struct drm_framebuffer *fb) |
||
525 | { |
||
5060 | serge | 526 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 527 | kref_get(&fb->refcount); |
528 | } |
||
529 | EXPORT_SYMBOL(drm_framebuffer_reference); |
||
530 | |||
531 | static void drm_framebuffer_free_bug(struct kref *kref) |
||
532 | { |
||
533 | BUG(); |
||
534 | } |
||
535 | |||
536 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
||
537 | { |
||
5060 | serge | 538 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 539 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
540 | } |
||
541 | |||
542 | /** |
||
543 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr |
||
544 | * @fb: fb to unregister |
||
545 | * |
||
546 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. |
||
547 | * those used for fbdev. Note that the caller must hold a reference of it's own, |
||
548 | * i.e. the object may not be destroyed through this call (since it'll lead to a |
||
549 | * locking inversion). |
||
550 | */ |
||
551 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) |
||
552 | { |
||
553 | struct drm_device *dev = fb->dev; |
||
554 | |||
555 | mutex_lock(&dev->mode_config.fb_lock); |
||
556 | /* Mark fb as reaped and drop idr ref. */ |
||
557 | __drm_framebuffer_unregister(dev, fb); |
||
558 | mutex_unlock(&dev->mode_config.fb_lock); |
||
559 | } |
||
560 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); |
||
561 | |||
562 | /** |
||
1123 | serge | 563 | * drm_framebuffer_cleanup - remove a framebuffer object |
564 | * @fb: framebuffer to remove |
||
565 | * |
||
5060 | serge | 566 | * Cleanup framebuffer. This function is intended to be used from the drivers |
567 | * ->destroy callback. It can also be used to clean up driver private |
||
568 | * framebuffers embedded into a larger structure. |
||
1123 | serge | 569 | * |
3480 | Serge | 570 | * Note that this function does not remove the fb from active usuage - if it is |
571 | * still used anywhere, hilarity can ensue since userspace could call getfb on |
||
572 | * the id and get back -EINVAL. Obviously no concern at driver unload time. |
||
573 | * |
||
574 | * Also, the framebuffer will not be removed from the lookup idr - for |
||
575 | * user-created framebuffers this will happen in in the rmfb ioctl. For |
||
576 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call |
||
577 | * drm_framebuffer_unregister_private. |
||
1123 | serge | 578 | */ |
579 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
||
580 | { |
||
581 | struct drm_device *dev = fb->dev; |
||
3480 | Serge | 582 | |
583 | mutex_lock(&dev->mode_config.fb_lock); |
||
1123 | serge | 584 | list_del(&fb->head); |
585 | dev->mode_config.num_fb--; |
||
3480 | Serge | 586 | mutex_unlock(&dev->mode_config.fb_lock); |
1123 | serge | 587 | } |
588 | EXPORT_SYMBOL(drm_framebuffer_cleanup); |
||
589 | |||
3480 | Serge | 590 | /** |
591 | * drm_framebuffer_remove - remove and unreference a framebuffer object |
||
592 | * @fb: framebuffer to remove |
||
593 | * |
||
594 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
||
595 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
||
596 | * passed-in framebuffer. Might take the modeset locks. |
||
597 | * |
||
598 | * Note that this function optimizes the cleanup away if the caller holds the |
||
599 | * last reference to the framebuffer. It is also guaranteed to not take the |
||
600 | * modeset locks in this case. |
||
601 | */ |
||
602 | void drm_framebuffer_remove(struct drm_framebuffer *fb) |
||
603 | { |
||
604 | struct drm_device *dev = fb->dev; |
||
605 | struct drm_crtc *crtc; |
||
606 | struct drm_plane *plane; |
||
607 | struct drm_mode_set set; |
||
608 | int ret; |
||
3031 | serge | 609 | |
3480 | Serge | 610 | WARN_ON(!list_empty(&fb->filp_head)); |
3031 | serge | 611 | |
3480 | Serge | 612 | /* |
613 | * drm ABI mandates that we remove any deleted framebuffers from active |
||
614 | * useage. But since most sane clients only remove framebuffers they no |
||
615 | * longer need, try to optimize this away. |
||
616 | * |
||
617 | * Since we're holding a reference ourselves, observing a refcount of 1 |
||
618 | * means that we're the last holder and can skip it. Also, the refcount |
||
619 | * can never increase from 1 again, so we don't need any barriers or |
||
620 | * locks. |
||
621 | * |
||
622 | * Note that userspace could try to race with use and instate a new |
||
623 | * usage _after_ we've cleared all current ones. End result will be an |
||
624 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot |
||
625 | * in this manner. |
||
626 | */ |
||
627 | if (atomic_read(&fb->refcount.refcount) > 1) { |
||
628 | drm_modeset_lock_all(dev); |
||
629 | /* remove from any CRTC */ |
||
630 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
||
5060 | serge | 631 | if (crtc->primary->fb == fb) { |
3480 | Serge | 632 | /* should turn off the crtc */ |
633 | memset(&set, 0, sizeof(struct drm_mode_set)); |
||
634 | set.crtc = crtc; |
||
635 | set.fb = NULL; |
||
636 | ret = drm_mode_set_config_internal(&set); |
||
637 | if (ret) |
||
638 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); |
||
639 | } |
||
640 | } |
||
3031 | serge | 641 | |
3480 | Serge | 642 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
4075 | Serge | 643 | if (plane->fb == fb) |
644 | drm_plane_force_disable(plane); |
||
3480 | Serge | 645 | } |
646 | drm_modeset_unlock_all(dev); |
||
647 | } |
||
3031 | serge | 648 | |
3480 | Serge | 649 | drm_framebuffer_unreference(fb); |
650 | } |
||
651 | EXPORT_SYMBOL(drm_framebuffer_remove); |
||
652 | |||
5060 | serge | 653 | DEFINE_WW_CLASS(crtc_ww_class); |
654 | |||
1123 | serge | 655 | /** |
5060 | serge | 656 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
657 | * specified primary and cursor planes. |
||
1123 | serge | 658 | * @dev: DRM device |
659 | * @crtc: CRTC object to init |
||
5060 | serge | 660 | * @primary: Primary plane for CRTC |
661 | * @cursor: Cursor plane for CRTC |
||
1123 | serge | 662 | * @funcs: callbacks for the new CRTC |
663 | * |
||
4075 | Serge | 664 | * Inits a new object created as base part of a driver crtc object. |
3031 | serge | 665 | * |
5060 | serge | 666 | * Returns: |
3031 | serge | 667 | * Zero on success, error code on failure. |
1123 | serge | 668 | */ |
5060 | serge | 669 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
670 | struct drm_plane *primary, |
||
671 | struct drm_plane *cursor, |
||
1123 | serge | 672 | const struct drm_crtc_funcs *funcs) |
673 | { |
||
5060 | serge | 674 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 675 | int ret; |
676 | |||
1123 | serge | 677 | crtc->dev = dev; |
678 | crtc->funcs = funcs; |
||
3031 | serge | 679 | crtc->invert_dimensions = false; |
1123 | serge | 680 | |
5060 | serge | 681 | drm_modeset_lock_init(&crtc->mutex); |
3031 | serge | 682 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
683 | if (ret) |
||
5271 | serge | 684 | return ret; |
3031 | serge | 685 | |
686 | crtc->base.properties = &crtc->properties; |
||
687 | |||
5060 | serge | 688 | list_add_tail(&crtc->head, &config->crtc_list); |
689 | config->num_crtc++; |
||
3031 | serge | 690 | |
5060 | serge | 691 | crtc->primary = primary; |
692 | crtc->cursor = cursor; |
||
693 | if (primary) |
||
694 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
695 | if (cursor) |
||
696 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
697 | |||
5271 | serge | 698 | return 0; |
1123 | serge | 699 | } |
5060 | serge | 700 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
1123 | serge | 701 | |
702 | /** |
||
4075 | Serge | 703 | * drm_crtc_cleanup - Clean up the core crtc usage |
1123 | serge | 704 | * @crtc: CRTC to cleanup |
705 | * |
||
4075 | Serge | 706 | * This function cleans up @crtc and removes it from the DRM mode setting |
707 | * core. Note that the function does *not* free the crtc structure itself, |
||
708 | * this is the responsibility of the caller. |
||
1123 | serge | 709 | */ |
710 | void drm_crtc_cleanup(struct drm_crtc *crtc) |
||
711 | { |
||
712 | struct drm_device *dev = crtc->dev; |
||
713 | |||
714 | kfree(crtc->gamma_store); |
||
715 | crtc->gamma_store = NULL; |
||
716 | |||
5060 | serge | 717 | drm_modeset_lock_fini(&crtc->mutex); |
718 | |||
1123 | serge | 719 | drm_mode_object_put(dev, &crtc->base); |
720 | list_del(&crtc->head); |
||
721 | dev->mode_config.num_crtc--; |
||
5271 | serge | 722 | |
723 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); |
||
724 | if (crtc->state && crtc->funcs->atomic_destroy_state) |
||
725 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); |
||
726 | |||
727 | memset(crtc, 0, sizeof(*crtc)); |
||
1123 | serge | 728 | } |
729 | EXPORT_SYMBOL(drm_crtc_cleanup); |
||
730 | |||
731 | /** |
||
4560 | Serge | 732 | * drm_crtc_index - find the index of a registered CRTC |
733 | * @crtc: CRTC to find index for |
||
734 | * |
||
735 | * Given a registered CRTC, return the index of that CRTC within a DRM |
||
736 | * device's list of CRTCs. |
||
737 | */ |
||
738 | unsigned int drm_crtc_index(struct drm_crtc *crtc) |
||
739 | { |
||
740 | unsigned int index = 0; |
||
741 | struct drm_crtc *tmp; |
||
742 | |||
743 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
||
744 | if (tmp == crtc) |
||
745 | return index; |
||
746 | |||
747 | index++; |
||
748 | } |
||
749 | |||
750 | BUG(); |
||
751 | } |
||
752 | EXPORT_SYMBOL(drm_crtc_index); |
||
753 | |||
4104 | Serge | 754 | /* |
1123 | serge | 755 | * drm_mode_remove - remove and free a mode |
756 | * @connector: connector list to modify |
||
757 | * @mode: mode to remove |
||
758 | * |
||
759 | * Remove @mode from @connector's mode list, then free it. |
||
760 | */ |
||
4104 | Serge | 761 | static void drm_mode_remove(struct drm_connector *connector, |
1123 | serge | 762 | struct drm_display_mode *mode) |
763 | { |
||
764 | list_del(&mode->head); |
||
3031 | serge | 765 | drm_mode_destroy(connector->dev, mode); |
1123 | serge | 766 | } |
767 | |||
768 | /** |
||
769 | * drm_connector_init - Init a preallocated connector |
||
770 | * @dev: DRM device |
||
771 | * @connector: the connector to init |
||
772 | * @funcs: callbacks for this connector |
||
3480 | Serge | 773 | * @connector_type: user visible type of the connector |
1123 | serge | 774 | * |
775 | * Initialises a preallocated connector. Connectors should be |
||
776 | * subclassed as part of driver connector objects. |
||
3031 | serge | 777 | * |
5060 | serge | 778 | * Returns: |
3031 | serge | 779 | * Zero on success, error code on failure. |
1123 | serge | 780 | */ |
3031 | serge | 781 | int drm_connector_init(struct drm_device *dev, |
1123 | serge | 782 | struct drm_connector *connector, |
783 | const struct drm_connector_funcs *funcs, |
||
784 | int connector_type) |
||
785 | { |
||
3031 | serge | 786 | int ret; |
4104 | Serge | 787 | struct ida *connector_ida = |
788 | &drm_connector_enum_list[connector_type].ida; |
||
3031 | serge | 789 | |
3480 | Serge | 790 | drm_modeset_lock_all(dev); |
1123 | serge | 791 | |
5060 | serge | 792 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
3031 | serge | 793 | if (ret) |
5060 | serge | 794 | goto out_unlock; |
3031 | serge | 795 | |
796 | connector->base.properties = &connector->properties; |
||
1123 | serge | 797 | connector->dev = dev; |
798 | connector->funcs = funcs; |
||
799 | connector->connector_type = connector_type; |
||
800 | connector->connector_type_id = |
||
4104 | Serge | 801 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
802 | if (connector->connector_type_id < 0) { |
||
803 | ret = connector->connector_type_id; |
||
5060 | serge | 804 | goto out_put; |
4104 | Serge | 805 | } |
5060 | serge | 806 | connector->name = |
807 | kasprintf(GFP_KERNEL, "%s-%d", |
||
808 | drm_connector_enum_list[connector_type].name, |
||
809 | connector->connector_type_id); |
||
810 | if (!connector->name) { |
||
811 | ret = -ENOMEM; |
||
812 | goto out_put; |
||
813 | } |
||
814 | |||
1123 | serge | 815 | INIT_LIST_HEAD(&connector->probed_modes); |
816 | INIT_LIST_HEAD(&connector->modes); |
||
817 | connector->edid_blob_ptr = NULL; |
||
3192 | Serge | 818 | connector->status = connector_status_unknown; |
1123 | serge | 819 | |
820 | list_add_tail(&connector->head, &dev->mode_config.connector_list); |
||
821 | dev->mode_config.num_connector++; |
||
822 | |||
3031 | serge | 823 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
3192 | Serge | 824 | drm_object_attach_property(&connector->base, |
3031 | serge | 825 | dev->mode_config.edid_property, |
826 | 0); |
||
1123 | serge | 827 | |
3192 | Serge | 828 | drm_object_attach_property(&connector->base, |
1123 | serge | 829 | dev->mode_config.dpms_property, 0); |
830 | |||
5060 | serge | 831 | connector->debugfs_entry = NULL; |
832 | |||
833 | out_put: |
||
834 | if (ret) |
||
835 | drm_mode_object_put(dev, &connector->base); |
||
836 | |||
837 | out_unlock: |
||
3480 | Serge | 838 | drm_modeset_unlock_all(dev); |
3031 | serge | 839 | |
840 | return ret; |
||
1123 | serge | 841 | } |
842 | EXPORT_SYMBOL(drm_connector_init); |
||
843 | |||
844 | /** |
||
845 | * drm_connector_cleanup - cleans up an initialised connector |
||
846 | * @connector: connector to cleanup |
||
847 | * |
||
848 | * Cleans up the connector but doesn't free the object. |
||
849 | */ |
||
850 | void drm_connector_cleanup(struct drm_connector *connector) |
||
851 | { |
||
852 | struct drm_device *dev = connector->dev; |
||
853 | struct drm_display_mode *mode, *t; |
||
854 | |||
855 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
||
856 | drm_mode_remove(connector, mode); |
||
857 | |||
858 | list_for_each_entry_safe(mode, t, &connector->modes, head) |
||
859 | drm_mode_remove(connector, mode); |
||
860 | |||
4104 | Serge | 861 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
862 | connector->connector_type_id); |
||
863 | |||
1123 | serge | 864 | drm_mode_object_put(dev, &connector->base); |
5060 | serge | 865 | kfree(connector->name); |
866 | connector->name = NULL; |
||
1123 | serge | 867 | list_del(&connector->head); |
2160 | serge | 868 | dev->mode_config.num_connector--; |
5271 | serge | 869 | |
870 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); |
||
871 | if (connector->state && connector->funcs->atomic_destroy_state) |
||
872 | connector->funcs->atomic_destroy_state(connector, |
||
873 | connector->state); |
||
874 | |||
875 | memset(connector, 0, sizeof(*connector)); |
||
1123 | serge | 876 | } |
877 | EXPORT_SYMBOL(drm_connector_cleanup); |
||
878 | |||
5060 | serge | 879 | /** |
5271 | serge | 880 | * drm_connector_index - find the index of a registered connector |
881 | * @connector: connector to find index for |
||
882 | * |
||
883 | * Given a registered connector, return the index of that connector within a DRM |
||
884 | * device's list of connectors. |
||
885 | */ |
||
886 | unsigned int drm_connector_index(struct drm_connector *connector) |
||
887 | { |
||
888 | unsigned int index = 0; |
||
889 | struct drm_connector *tmp; |
||
890 | struct drm_mode_config *config = &connector->dev->mode_config; |
||
891 | |||
892 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
||
893 | |||
894 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { |
||
895 | if (tmp == connector) |
||
896 | return index; |
||
897 | |||
898 | index++; |
||
899 | } |
||
900 | |||
901 | BUG(); |
||
902 | } |
||
903 | EXPORT_SYMBOL(drm_connector_index); |
||
904 | |||
905 | /** |
||
5060 | serge | 906 | * drm_connector_register - register a connector |
907 | * @connector: the connector to register |
||
908 | * |
||
909 | * Register userspace interfaces for a connector |
||
910 | * |
||
911 | * Returns: |
||
912 | * Zero on success, error code on failure. |
||
913 | */ |
||
914 | int drm_connector_register(struct drm_connector *connector) |
||
915 | { |
||
916 | int ret; |
||
917 | |||
918 | drm_mode_object_register(connector->dev, &connector->base); |
||
919 | |||
920 | return 0; |
||
921 | } |
||
922 | EXPORT_SYMBOL(drm_connector_register); |
||
923 | |||
924 | /** |
||
925 | * drm_connector_unregister - unregister a connector |
||
926 | * @connector: the connector to unregister |
||
927 | * |
||
928 | * Unregister userspace interfaces for a connector |
||
929 | */ |
||
930 | void drm_connector_unregister(struct drm_connector *connector) |
||
931 | { |
||
932 | } |
||
933 | EXPORT_SYMBOL(drm_connector_unregister); |
||
934 | |||
935 | |||
936 | /** |
||
937 | * drm_connector_unplug_all - unregister connector userspace interfaces |
||
938 | * @dev: drm device |
||
939 | * |
||
940 | * This function unregisters all connector userspace interfaces in sysfs. Should |
||
941 | * be call when the device is disconnected, e.g. from an usb driver's |
||
942 | * ->disconnect callback. |
||
943 | */ |
||
3031 | serge | 944 | void drm_connector_unplug_all(struct drm_device *dev) |
945 | { |
||
946 | struct drm_connector *connector; |
||
947 | |||
948 | /* taking the mode config mutex ends up in a clash with sysfs */ |
||
5060 | serge | 949 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
950 | drm_connector_unregister(connector); |
||
3031 | serge | 951 | |
952 | } |
||
953 | EXPORT_SYMBOL(drm_connector_unplug_all); |
||
954 | |||
5060 | serge | 955 | /** |
956 | * drm_bridge_init - initialize a drm transcoder/bridge |
||
957 | * @dev: drm device |
||
958 | * @bridge: transcoder/bridge to set up |
||
959 | * @funcs: bridge function table |
||
960 | * |
||
961 | * Initialises a preallocated bridge. Bridges should be |
||
962 | * subclassed as part of driver connector objects. |
||
963 | * |
||
964 | * Returns: |
||
965 | * Zero on success, error code on failure. |
||
966 | */ |
||
4104 | Serge | 967 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
968 | const struct drm_bridge_funcs *funcs) |
||
969 | { |
||
970 | int ret; |
||
971 | |||
972 | drm_modeset_lock_all(dev); |
||
973 | |||
974 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); |
||
975 | if (ret) |
||
976 | goto out; |
||
977 | |||
978 | bridge->dev = dev; |
||
979 | bridge->funcs = funcs; |
||
980 | |||
981 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); |
||
982 | dev->mode_config.num_bridge++; |
||
983 | |||
984 | out: |
||
985 | drm_modeset_unlock_all(dev); |
||
986 | return ret; |
||
987 | } |
||
988 | EXPORT_SYMBOL(drm_bridge_init); |
||
989 | |||
5060 | serge | 990 | /** |
991 | * drm_bridge_cleanup - cleans up an initialised bridge |
||
992 | * @bridge: bridge to cleanup |
||
993 | * |
||
994 | * Cleans up the bridge but doesn't free the object. |
||
995 | */ |
||
4104 | Serge | 996 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
997 | { |
||
998 | struct drm_device *dev = bridge->dev; |
||
999 | |||
1000 | drm_modeset_lock_all(dev); |
||
1001 | drm_mode_object_put(dev, &bridge->base); |
||
1002 | list_del(&bridge->head); |
||
1003 | dev->mode_config.num_bridge--; |
||
1004 | drm_modeset_unlock_all(dev); |
||
5271 | serge | 1005 | |
1006 | memset(bridge, 0, sizeof(*bridge)); |
||
4104 | Serge | 1007 | } |
1008 | EXPORT_SYMBOL(drm_bridge_cleanup); |
||
1009 | |||
5060 | serge | 1010 | /** |
1011 | * drm_encoder_init - Init a preallocated encoder |
||
1012 | * @dev: drm device |
||
1013 | * @encoder: the encoder to init |
||
1014 | * @funcs: callbacks for this encoder |
||
1015 | * @encoder_type: user visible type of the encoder |
||
1016 | * |
||
1017 | * Initialises a preallocated encoder. Encoder should be |
||
1018 | * subclassed as part of driver encoder objects. |
||
1019 | * |
||
1020 | * Returns: |
||
1021 | * Zero on success, error code on failure. |
||
1022 | */ |
||
3031 | serge | 1023 | int drm_encoder_init(struct drm_device *dev, |
1123 | serge | 1024 | struct drm_encoder *encoder, |
1025 | const struct drm_encoder_funcs *funcs, |
||
1026 | int encoder_type) |
||
1027 | { |
||
3031 | serge | 1028 | int ret; |
1029 | |||
3480 | Serge | 1030 | drm_modeset_lock_all(dev); |
1123 | serge | 1031 | |
3031 | serge | 1032 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1033 | if (ret) |
||
5060 | serge | 1034 | goto out_unlock; |
3031 | serge | 1035 | |
1123 | serge | 1036 | encoder->dev = dev; |
1037 | encoder->encoder_type = encoder_type; |
||
1038 | encoder->funcs = funcs; |
||
5060 | serge | 1039 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1040 | drm_encoder_enum_list[encoder_type].name, |
||
1041 | encoder->base.id); |
||
1042 | if (!encoder->name) { |
||
1043 | ret = -ENOMEM; |
||
1044 | goto out_put; |
||
1045 | } |
||
1123 | serge | 1046 | |
1047 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
||
1048 | dev->mode_config.num_encoder++; |
||
1049 | |||
5060 | serge | 1050 | out_put: |
1051 | if (ret) |
||
1052 | drm_mode_object_put(dev, &encoder->base); |
||
1053 | |||
1054 | out_unlock: |
||
3480 | Serge | 1055 | drm_modeset_unlock_all(dev); |
3031 | serge | 1056 | |
1057 | return ret; |
||
1123 | serge | 1058 | } |
1059 | EXPORT_SYMBOL(drm_encoder_init); |
||
1060 | |||
5060 | serge | 1061 | /** |
1062 | * drm_encoder_cleanup - cleans up an initialised encoder |
||
1063 | * @encoder: encoder to cleanup |
||
1064 | * |
||
1065 | * Cleans up the encoder but doesn't free the object. |
||
1066 | */ |
||
1123 | serge | 1067 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1068 | { |
||
1069 | struct drm_device *dev = encoder->dev; |
||
3480 | Serge | 1070 | drm_modeset_lock_all(dev); |
1123 | serge | 1071 | drm_mode_object_put(dev, &encoder->base); |
5060 | serge | 1072 | kfree(encoder->name); |
1123 | serge | 1073 | list_del(&encoder->head); |
2160 | serge | 1074 | dev->mode_config.num_encoder--; |
3480 | Serge | 1075 | drm_modeset_unlock_all(dev); |
5271 | serge | 1076 | |
1077 | memset(encoder, 0, sizeof(*encoder)); |
||
1123 | serge | 1078 | } |
1079 | EXPORT_SYMBOL(drm_encoder_cleanup); |
||
1080 | |||
4075 | Serge | 1081 | /** |
5060 | serge | 1082 | * drm_universal_plane_init - Initialize a new universal plane object |
4075 | Serge | 1083 | * @dev: DRM device |
1084 | * @plane: plane object to init |
||
1085 | * @possible_crtcs: bitmask of possible CRTCs |
||
1086 | * @funcs: callbacks for the new plane |
||
1087 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1088 | * @format_count: number of elements in @formats |
||
5060 | serge | 1089 | * @type: type of plane (overlay, primary, cursor) |
4075 | Serge | 1090 | * |
5060 | serge | 1091 | * Initializes a plane object of type @type. |
4075 | Serge | 1092 | * |
5060 | serge | 1093 | * Returns: |
4075 | Serge | 1094 | * Zero on success, error code on failure. |
1095 | */ |
||
5060 | serge | 1096 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
3031 | serge | 1097 | unsigned long possible_crtcs, |
1098 | const struct drm_plane_funcs *funcs, |
||
1099 | const uint32_t *formats, uint32_t format_count, |
||
5060 | serge | 1100 | enum drm_plane_type type) |
3031 | serge | 1101 | { |
1102 | int ret; |
||
1103 | |||
1104 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
||
1105 | if (ret) |
||
5271 | serge | 1106 | return ret; |
3031 | serge | 1107 | |
5271 | serge | 1108 | drm_modeset_lock_init(&plane->mutex); |
1109 | |||
3031 | serge | 1110 | plane->base.properties = &plane->properties; |
1111 | plane->dev = dev; |
||
1112 | plane->funcs = funcs; |
||
1113 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, |
||
1114 | GFP_KERNEL); |
||
1115 | if (!plane->format_types) { |
||
1116 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); |
||
1117 | drm_mode_object_put(dev, &plane->base); |
||
5271 | serge | 1118 | return -ENOMEM; |
3031 | serge | 1119 | } |
1120 | |||
1121 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
||
1122 | plane->format_count = format_count; |
||
1123 | plane->possible_crtcs = possible_crtcs; |
||
5060 | serge | 1124 | plane->type = type; |
3031 | serge | 1125 | |
1126 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
||
5060 | serge | 1127 | dev->mode_config.num_total_plane++; |
1128 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
||
1129 | dev->mode_config.num_overlay_plane++; |
||
3031 | serge | 1130 | |
5060 | serge | 1131 | drm_object_attach_property(&plane->base, |
1132 | dev->mode_config.plane_type_property, |
||
1133 | plane->type); |
||
1134 | |||
5271 | serge | 1135 | return 0; |
3031 | serge | 1136 | } |
5060 | serge | 1137 | EXPORT_SYMBOL(drm_universal_plane_init); |
1138 | |||
1139 | /** |
||
1140 | * drm_plane_init - Initialize a legacy plane |
||
1141 | * @dev: DRM device |
||
1142 | * @plane: plane object to init |
||
1143 | * @possible_crtcs: bitmask of possible CRTCs |
||
1144 | * @funcs: callbacks for the new plane |
||
1145 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1146 | * @format_count: number of elements in @formats |
||
1147 | * @is_primary: plane type (primary vs overlay) |
||
1148 | * |
||
1149 | * Legacy API to initialize a DRM plane. |
||
1150 | * |
||
1151 | * New drivers should call drm_universal_plane_init() instead. |
||
1152 | * |
||
1153 | * Returns: |
||
1154 | * Zero on success, error code on failure. |
||
1155 | */ |
||
1156 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
||
1157 | unsigned long possible_crtcs, |
||
1158 | const struct drm_plane_funcs *funcs, |
||
1159 | const uint32_t *formats, uint32_t format_count, |
||
1160 | bool is_primary) |
||
1161 | { |
||
1162 | enum drm_plane_type type; |
||
1163 | |||
1164 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; |
||
1165 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, |
||
1166 | formats, format_count, type); |
||
1167 | } |
||
3031 | serge | 1168 | EXPORT_SYMBOL(drm_plane_init); |
1169 | |||
4075 | Serge | 1170 | /** |
1171 | * drm_plane_cleanup - Clean up the core plane usage |
||
1172 | * @plane: plane to cleanup |
||
1173 | * |
||
1174 | * This function cleans up @plane and removes it from the DRM mode setting |
||
1175 | * core. Note that the function does *not* free the plane structure itself, |
||
1176 | * this is the responsibility of the caller. |
||
1177 | */ |
||
3031 | serge | 1178 | void drm_plane_cleanup(struct drm_plane *plane) |
1179 | { |
||
1180 | struct drm_device *dev = plane->dev; |
||
1181 | |||
3480 | Serge | 1182 | drm_modeset_lock_all(dev); |
3031 | serge | 1183 | kfree(plane->format_types); |
1184 | drm_mode_object_put(dev, &plane->base); |
||
5060 | serge | 1185 | |
1186 | BUG_ON(list_empty(&plane->head)); |
||
1187 | |||
3031 | serge | 1188 | list_del(&plane->head); |
5060 | serge | 1189 | dev->mode_config.num_total_plane--; |
1190 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
||
1191 | dev->mode_config.num_overlay_plane--; |
||
3480 | Serge | 1192 | drm_modeset_unlock_all(dev); |
5271 | serge | 1193 | |
1194 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); |
||
1195 | if (plane->state && plane->funcs->atomic_destroy_state) |
||
1196 | plane->funcs->atomic_destroy_state(plane, plane->state); |
||
1197 | |||
1198 | memset(plane, 0, sizeof(*plane)); |
||
3031 | serge | 1199 | } |
1200 | EXPORT_SYMBOL(drm_plane_cleanup); |
||
1201 | |||
1123 | serge | 1202 | /** |
5271 | serge | 1203 | * drm_plane_index - find the index of a registered plane |
1204 | * @plane: plane to find index for |
||
1205 | * |
||
1206 | * Given a registered plane, return the index of that CRTC within a DRM |
||
1207 | * device's list of planes. |
||
1208 | */ |
||
1209 | unsigned int drm_plane_index(struct drm_plane *plane) |
||
1210 | { |
||
1211 | unsigned int index = 0; |
||
1212 | struct drm_plane *tmp; |
||
1213 | |||
1214 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { |
||
1215 | if (tmp == plane) |
||
1216 | return index; |
||
1217 | |||
1218 | index++; |
||
1219 | } |
||
1220 | |||
1221 | BUG(); |
||
1222 | } |
||
1223 | EXPORT_SYMBOL(drm_plane_index); |
||
1224 | |||
1225 | /** |
||
4075 | Serge | 1226 | * drm_plane_force_disable - Forcibly disable a plane |
1227 | * @plane: plane to disable |
||
1228 | * |
||
1229 | * Forces the plane to be disabled. |
||
1230 | * |
||
1231 | * Used when the plane's current framebuffer is destroyed, |
||
1232 | * and when restoring fbdev mode. |
||
1233 | */ |
||
1234 | void drm_plane_force_disable(struct drm_plane *plane) |
||
1235 | { |
||
1236 | int ret; |
||
1237 | |||
5271 | serge | 1238 | if (!plane->fb) |
4075 | Serge | 1239 | return; |
1240 | |||
5271 | serge | 1241 | plane->old_fb = plane->fb; |
4075 | Serge | 1242 | ret = plane->funcs->disable_plane(plane); |
5060 | serge | 1243 | if (ret) { |
4075 | Serge | 1244 | DRM_ERROR("failed to disable plane with busy fb\n"); |
5271 | serge | 1245 | plane->old_fb = NULL; |
5060 | serge | 1246 | return; |
1247 | } |
||
4075 | Serge | 1248 | /* disconnect the plane from the fb and crtc: */ |
5271 | serge | 1249 | __drm_framebuffer_unreference(plane->old_fb); |
1250 | plane->old_fb = NULL; |
||
4075 | Serge | 1251 | plane->fb = NULL; |
1252 | plane->crtc = NULL; |
||
1253 | } |
||
1254 | EXPORT_SYMBOL(drm_plane_force_disable); |
||
1255 | |||
1123 | serge | 1256 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1257 | { |
||
1258 | struct drm_property *edid; |
||
1259 | struct drm_property *dpms; |
||
5060 | serge | 1260 | struct drm_property *dev_path; |
1123 | serge | 1261 | |
1262 | /* |
||
1263 | * Standard properties (apply to all connectors) |
||
1264 | */ |
||
1265 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
||
1266 | DRM_MODE_PROP_IMMUTABLE, |
||
1267 | "EDID", 0); |
||
1268 | dev->mode_config.edid_property = edid; |
||
1269 | |||
3031 | serge | 1270 | dpms = drm_property_create_enum(dev, 0, |
1271 | "DPMS", drm_dpms_enum_list, |
||
1272 | ARRAY_SIZE(drm_dpms_enum_list)); |
||
1123 | serge | 1273 | dev->mode_config.dpms_property = dpms; |
1274 | |||
5060 | serge | 1275 | dev_path = drm_property_create(dev, |
1276 | DRM_MODE_PROP_BLOB | |
||
1277 | DRM_MODE_PROP_IMMUTABLE, |
||
1278 | "PATH", 0); |
||
1279 | dev->mode_config.path_property = dev_path; |
||
1280 | |||
5271 | serge | 1281 | dev->mode_config.tile_property = drm_property_create(dev, |
1282 | DRM_MODE_PROP_BLOB | |
||
1283 | DRM_MODE_PROP_IMMUTABLE, |
||
1284 | "TILE", 0); |
||
1285 | |||
1123 | serge | 1286 | return 0; |
1287 | } |
||
1288 | |||
5060 | serge | 1289 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1290 | { |
||
1291 | struct drm_property *type; |
||
1292 | |||
1293 | /* |
||
1294 | * Standard properties (apply to all planes) |
||
1295 | */ |
||
1296 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
||
1297 | "type", drm_plane_type_enum_list, |
||
1298 | ARRAY_SIZE(drm_plane_type_enum_list)); |
||
1299 | dev->mode_config.plane_type_property = type; |
||
1300 | |||
1301 | return 0; |
||
1302 | } |
||
1303 | |||
1123 | serge | 1304 | /** |
1305 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
||
1306 | * @dev: DRM device |
||
1307 | * |
||
1308 | * Called by a driver the first time a DVI-I connector is made. |
||
1309 | */ |
||
1310 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
||
1311 | { |
||
1312 | struct drm_property *dvi_i_selector; |
||
1313 | struct drm_property *dvi_i_subconnector; |
||
1314 | |||
1315 | if (dev->mode_config.dvi_i_select_subconnector_property) |
||
1316 | return 0; |
||
1317 | |||
1318 | dvi_i_selector = |
||
3031 | serge | 1319 | drm_property_create_enum(dev, 0, |
1123 | serge | 1320 | "select subconnector", |
3031 | serge | 1321 | drm_dvi_i_select_enum_list, |
1123 | serge | 1322 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
1323 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
||
1324 | |||
3031 | serge | 1325 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1123 | serge | 1326 | "subconnector", |
3031 | serge | 1327 | drm_dvi_i_subconnector_enum_list, |
1123 | serge | 1328 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
1329 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
||
1330 | |||
1331 | return 0; |
||
1332 | } |
||
1333 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
||
1334 | |||
1335 | /** |
||
1336 | * drm_create_tv_properties - create TV specific connector properties |
||
1337 | * @dev: DRM device |
||
1338 | * @num_modes: number of different TV formats (modes) supported |
||
1339 | * @modes: array of pointers to strings containing name of each format |
||
1340 | * |
||
1341 | * Called by a driver's TV initialization routine, this function creates |
||
1342 | * the TV specific connector properties for a given device. Caller is |
||
1343 | * responsible for allocating a list of format names and passing them to |
||
1344 | * this routine. |
||
1345 | */ |
||
5271 | serge | 1346 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1347 | unsigned int num_modes, |
||
1123 | serge | 1348 | char *modes[]) |
1349 | { |
||
1350 | struct drm_property *tv_selector; |
||
1351 | struct drm_property *tv_subconnector; |
||
5271 | serge | 1352 | unsigned int i; |
1123 | serge | 1353 | |
1354 | if (dev->mode_config.tv_select_subconnector_property) |
||
1355 | return 0; |
||
1356 | |||
1357 | /* |
||
1358 | * Basic connector properties |
||
1359 | */ |
||
3031 | serge | 1360 | tv_selector = drm_property_create_enum(dev, 0, |
1123 | serge | 1361 | "select subconnector", |
3031 | serge | 1362 | drm_tv_select_enum_list, |
1123 | serge | 1363 | ARRAY_SIZE(drm_tv_select_enum_list)); |
1364 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
||
1365 | |||
1366 | tv_subconnector = |
||
3031 | serge | 1367 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1368 | "subconnector", |
||
1369 | drm_tv_subconnector_enum_list, |
||
1123 | serge | 1370 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
1371 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
||
1372 | |||
1373 | /* |
||
1374 | * Other, TV specific properties: margins & TV modes. |
||
1375 | */ |
||
1376 | dev->mode_config.tv_left_margin_property = |
||
3031 | serge | 1377 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
1123 | serge | 1378 | |
1379 | dev->mode_config.tv_right_margin_property = |
||
3031 | serge | 1380 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
1123 | serge | 1381 | |
1382 | dev->mode_config.tv_top_margin_property = |
||
3031 | serge | 1383 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
1123 | serge | 1384 | |
1385 | dev->mode_config.tv_bottom_margin_property = |
||
3031 | serge | 1386 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
1123 | serge | 1387 | |
1388 | dev->mode_config.tv_mode_property = |
||
1389 | drm_property_create(dev, DRM_MODE_PROP_ENUM, |
||
1390 | "mode", num_modes); |
||
1391 | for (i = 0; i < num_modes; i++) |
||
1392 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
||
1393 | i, modes[i]); |
||
1394 | |||
1179 | serge | 1395 | dev->mode_config.tv_brightness_property = |
3031 | serge | 1396 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
1179 | serge | 1397 | |
1398 | dev->mode_config.tv_contrast_property = |
||
3031 | serge | 1399 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
1179 | serge | 1400 | |
1401 | dev->mode_config.tv_flicker_reduction_property = |
||
3031 | serge | 1402 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
1179 | serge | 1403 | |
1404 | dev->mode_config.tv_overscan_property = |
||
3031 | serge | 1405 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
1179 | serge | 1406 | |
1407 | dev->mode_config.tv_saturation_property = |
||
3031 | serge | 1408 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
1179 | serge | 1409 | |
1410 | dev->mode_config.tv_hue_property = |
||
3031 | serge | 1411 | drm_property_create_range(dev, 0, "hue", 0, 100); |
1179 | serge | 1412 | |
1123 | serge | 1413 | return 0; |
1414 | } |
||
1415 | EXPORT_SYMBOL(drm_mode_create_tv_properties); |
||
1416 | |||
1417 | /** |
||
1418 | * drm_mode_create_scaling_mode_property - create scaling mode property |
||
1419 | * @dev: DRM device |
||
1420 | * |
||
1421 | * Called by a driver the first time it's needed, must be attached to desired |
||
1422 | * connectors. |
||
1423 | */ |
||
1424 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
||
1425 | { |
||
1426 | struct drm_property *scaling_mode; |
||
1427 | |||
1428 | if (dev->mode_config.scaling_mode_property) |
||
1429 | return 0; |
||
1430 | |||
1431 | scaling_mode = |
||
3031 | serge | 1432 | drm_property_create_enum(dev, 0, "scaling mode", |
1433 | drm_scaling_mode_enum_list, |
||
1123 | serge | 1434 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
1435 | |||
1436 | dev->mode_config.scaling_mode_property = scaling_mode; |
||
1437 | |||
1438 | return 0; |
||
1439 | } |
||
1440 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
||
1441 | |||
1442 | /** |
||
5060 | serge | 1443 | * drm_mode_create_aspect_ratio_property - create aspect ratio property |
1444 | * @dev: DRM device |
||
1445 | * |
||
1446 | * Called by a driver the first time it's needed, must be attached to desired |
||
1447 | * connectors. |
||
1448 | * |
||
1449 | * Returns: |
||
5271 | serge | 1450 | * Zero on success, negative errno on failure. |
5060 | serge | 1451 | */ |
1452 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) |
||
1453 | { |
||
1454 | if (dev->mode_config.aspect_ratio_property) |
||
1455 | return 0; |
||
1456 | |||
1457 | dev->mode_config.aspect_ratio_property = |
||
1458 | drm_property_create_enum(dev, 0, "aspect ratio", |
||
1459 | drm_aspect_ratio_enum_list, |
||
1460 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); |
||
1461 | |||
1462 | if (dev->mode_config.aspect_ratio_property == NULL) |
||
1463 | return -ENOMEM; |
||
1464 | |||
1465 | return 0; |
||
1466 | } |
||
1467 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); |
||
1468 | |||
1469 | /** |
||
1321 | serge | 1470 | * drm_mode_create_dirty_property - create dirty property |
1471 | * @dev: DRM device |
||
1472 | * |
||
1473 | * Called by a driver the first time it's needed, must be attached to desired |
||
1474 | * connectors. |
||
1475 | */ |
||
1476 | int drm_mode_create_dirty_info_property(struct drm_device *dev) |
||
1477 | { |
||
1478 | struct drm_property *dirty_info; |
||
1479 | |||
1480 | if (dev->mode_config.dirty_info_property) |
||
1481 | return 0; |
||
1482 | |||
1483 | dirty_info = |
||
3031 | serge | 1484 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1321 | serge | 1485 | "dirty", |
3031 | serge | 1486 | drm_dirty_info_enum_list, |
1321 | serge | 1487 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
1488 | dev->mode_config.dirty_info_property = dirty_info; |
||
1489 | |||
1490 | return 0; |
||
1491 | } |
||
1492 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); |
||
1493 | |||
5271 | serge | 1494 | /** |
1495 | * drm_mode_create_suggested_offset_properties - create suggests offset properties |
||
1496 | * @dev: DRM device |
||
1497 | * |
||
1498 | * Create the the suggested x/y offset property for connectors. |
||
1499 | */ |
||
1500 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) |
||
1501 | { |
||
1502 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) |
||
1503 | return 0; |
||
1504 | |||
1505 | dev->mode_config.suggested_x_property = |
||
1506 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); |
||
1507 | |||
1508 | dev->mode_config.suggested_y_property = |
||
1509 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); |
||
1510 | |||
1511 | if (dev->mode_config.suggested_x_property == NULL || |
||
1512 | dev->mode_config.suggested_y_property == NULL) |
||
1513 | return -ENOMEM; |
||
1514 | return 0; |
||
1515 | } |
||
1516 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); |
||
1517 | |||
3746 | Serge | 1518 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
1123 | serge | 1519 | { |
1520 | uint32_t total_objects = 0; |
||
1521 | |||
1522 | total_objects += dev->mode_config.num_crtc; |
||
1523 | total_objects += dev->mode_config.num_connector; |
||
1524 | total_objects += dev->mode_config.num_encoder; |
||
4104 | Serge | 1525 | total_objects += dev->mode_config.num_bridge; |
1123 | serge | 1526 | |
1527 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
||
1528 | if (!group->id_list) |
||
1529 | return -ENOMEM; |
||
1530 | |||
1531 | group->num_crtcs = 0; |
||
1532 | group->num_connectors = 0; |
||
1533 | group->num_encoders = 0; |
||
4104 | Serge | 1534 | group->num_bridges = 0; |
1123 | serge | 1535 | return 0; |
1536 | } |
||
1537 | |||
5060 | serge | 1538 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1539 | { |
||
1540 | kfree(group->id_list); |
||
1541 | group->id_list = NULL; |
||
1542 | } |
||
1543 | |||
1544 | /* |
||
1545 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is |
||
1546 | * the drm core's responsibility to set up mode control groups. |
||
1547 | */ |
||
1123 | serge | 1548 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1549 | struct drm_mode_group *group) |
||
1550 | { |
||
1551 | struct drm_crtc *crtc; |
||
1552 | struct drm_encoder *encoder; |
||
1553 | struct drm_connector *connector; |
||
4104 | Serge | 1554 | struct drm_bridge *bridge; |
1123 | serge | 1555 | int ret; |
1556 | |||
1557 | if ((ret = drm_mode_group_init(dev, group))) |
||
1558 | return ret; |
||
1559 | |||
1560 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
||
1561 | group->id_list[group->num_crtcs++] = crtc->base.id; |
||
1562 | |||
1563 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
||
1564 | group->id_list[group->num_crtcs + group->num_encoders++] = |
||
1565 | encoder->base.id; |
||
1566 | |||
1567 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
||
1568 | group->id_list[group->num_crtcs + group->num_encoders + |
||
1569 | group->num_connectors++] = connector->base.id; |
||
1570 | |||
4104 | Serge | 1571 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1572 | group->id_list[group->num_crtcs + group->num_encoders + |
||
1573 | group->num_connectors + group->num_bridges++] = |
||
1574 | bridge->base.id; |
||
1575 | |||
1123 | serge | 1576 | return 0; |
1577 | } |
||
3031 | serge | 1578 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
1123 | serge | 1579 | |
5060 | serge | 1580 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1581 | { |
||
1582 | drm_modeset_lock_all(dev); |
||
1583 | drm_mode_group_destroy(&dev->primary->mode_group); |
||
1584 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); |
||
1585 | drm_modeset_unlock_all(dev); |
||
1586 | } |
||
1587 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); |
||
1588 | |||
1123 | serge | 1589 | /** |
1590 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo |
||
1591 | * @out: drm_mode_modeinfo struct to return to the user |
||
1592 | * @in: drm_display_mode to use |
||
1593 | * |
||
1594 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
||
1595 | * the user. |
||
1596 | */ |
||
3031 | serge | 1597 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1598 | const struct drm_display_mode *in) |
||
1123 | serge | 1599 | { |
3031 | serge | 1600 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1601 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || |
||
1602 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || |
||
1603 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || |
||
1604 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, |
||
1605 | "timing values too large for mode info\n"); |
||
1606 | |||
1123 | serge | 1607 | out->clock = in->clock; |
1608 | out->hdisplay = in->hdisplay; |
||
1609 | out->hsync_start = in->hsync_start; |
||
1610 | out->hsync_end = in->hsync_end; |
||
1611 | out->htotal = in->htotal; |
||
1612 | out->hskew = in->hskew; |
||
1613 | out->vdisplay = in->vdisplay; |
||
1614 | out->vsync_start = in->vsync_start; |
||
1615 | out->vsync_end = in->vsync_end; |
||
1616 | out->vtotal = in->vtotal; |
||
1617 | out->vscan = in->vscan; |
||
1618 | out->vrefresh = in->vrefresh; |
||
1619 | out->flags = in->flags; |
||
1620 | out->type = in->type; |
||
1621 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
||
1622 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
||
1623 | } |
||
1624 | |||
1625 | /** |
||
4560 | Serge | 1626 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
1123 | serge | 1627 | * @out: drm_display_mode to return to the user |
1628 | * @in: drm_mode_modeinfo to use |
||
1629 | * |
||
1630 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
||
1631 | * the caller. |
||
3031 | serge | 1632 | * |
5060 | serge | 1633 | * Returns: |
5271 | serge | 1634 | * Zero on success, negative errno on failure. |
1123 | serge | 1635 | */ |
3031 | serge | 1636 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1637 | const struct drm_mode_modeinfo *in) |
||
1123 | serge | 1638 | { |
3031 | serge | 1639 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1640 | return -ERANGE; |
||
1641 | |||
4560 | Serge | 1642 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1643 | return -EINVAL; |
||
1644 | |||
1123 | serge | 1645 | out->clock = in->clock; |
1646 | out->hdisplay = in->hdisplay; |
||
1647 | out->hsync_start = in->hsync_start; |
||
1648 | out->hsync_end = in->hsync_end; |
||
1649 | out->htotal = in->htotal; |
||
1650 | out->hskew = in->hskew; |
||
1651 | out->vdisplay = in->vdisplay; |
||
1652 | out->vsync_start = in->vsync_start; |
||
1653 | out->vsync_end = in->vsync_end; |
||
1654 | out->vtotal = in->vtotal; |
||
1655 | out->vscan = in->vscan; |
||
1656 | out->vrefresh = in->vrefresh; |
||
1657 | out->flags = in->flags; |
||
1658 | out->type = in->type; |
||
1659 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
||
1660 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
||
3031 | serge | 1661 | |
1662 | return 0; |
||
1123 | serge | 1663 | } |
1664 | |||
1665 | |||
1666 | #if 0 |
||
1667 | /** |
||
1668 | * drm_mode_getresources - get graphics configuration |
||
3480 | Serge | 1669 | * @dev: drm device for the ioctl |
1670 | * @data: data pointer for the ioctl |
||
1671 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1672 | * |
1673 | * Construct a set of configuration description structures and return |
||
1674 | * them to the user, including CRTC, connector and framebuffer configuration. |
||
1675 | * |
||
1676 | * Called by the user via ioctl. |
||
1677 | * |
||
5060 | serge | 1678 | * Returns: |
5271 | serge | 1679 | * Zero on success, negative errno on failure. |
1123 | serge | 1680 | */ |
1681 | int drm_mode_getresources(struct drm_device *dev, void *data, |
||
1682 | struct drm_file *file_priv) |
||
1683 | { |
||
1684 | struct drm_mode_card_res *card_res = data; |
||
1685 | struct list_head *lh; |
||
1686 | struct drm_framebuffer *fb; |
||
1687 | struct drm_connector *connector; |
||
1688 | struct drm_crtc *crtc; |
||
1689 | struct drm_encoder *encoder; |
||
1690 | int ret = 0; |
||
1691 | int connector_count = 0; |
||
1692 | int crtc_count = 0; |
||
1693 | int fb_count = 0; |
||
1694 | int encoder_count = 0; |
||
1695 | int copied = 0, i; |
||
1696 | uint32_t __user *fb_id; |
||
1697 | uint32_t __user *crtc_id; |
||
1698 | uint32_t __user *connector_id; |
||
1699 | uint32_t __user *encoder_id; |
||
1700 | struct drm_mode_group *mode_group; |
||
1701 | |||
1963 | serge | 1702 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1703 | return -EINVAL; |
||
1704 | |||
1123 | serge | 1705 | |
3480 | Serge | 1706 | mutex_lock(&file_priv->fbs_lock); |
1123 | serge | 1707 | /* |
1708 | * For the non-control nodes we need to limit the list of resources |
||
1709 | * by IDs in the group list for this node |
||
1710 | */ |
||
1711 | list_for_each(lh, &file_priv->fbs) |
||
1712 | fb_count++; |
||
1713 | |||
3480 | Serge | 1714 | /* handle this in 4 parts */ |
1715 | /* FBs */ |
||
1716 | if (card_res->count_fbs >= fb_count) { |
||
1717 | copied = 0; |
||
1718 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
||
1719 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { |
||
1720 | if (put_user(fb->base.id, fb_id + copied)) { |
||
1721 | mutex_unlock(&file_priv->fbs_lock); |
||
1722 | return -EFAULT; |
||
1723 | } |
||
1724 | copied++; |
||
1725 | } |
||
1726 | } |
||
1727 | card_res->count_fbs = fb_count; |
||
1728 | mutex_unlock(&file_priv->fbs_lock); |
||
1729 | |||
5271 | serge | 1730 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1731 | * connector hot-adding. CRTC/Plane lists are invariant. */ |
||
1732 | mutex_lock(&dev->mode_config.mutex); |
||
5060 | serge | 1733 | if (!drm_is_primary_client(file_priv)) { |
1123 | serge | 1734 | |
5060 | serge | 1735 | mode_group = NULL; |
1123 | serge | 1736 | list_for_each(lh, &dev->mode_config.crtc_list) |
1737 | crtc_count++; |
||
1738 | |||
1739 | list_for_each(lh, &dev->mode_config.connector_list) |
||
1740 | connector_count++; |
||
1741 | |||
1742 | list_for_each(lh, &dev->mode_config.encoder_list) |
||
1743 | encoder_count++; |
||
1744 | } else { |
||
1745 | |||
5060 | serge | 1746 | mode_group = &file_priv->master->minor->mode_group; |
1123 | serge | 1747 | crtc_count = mode_group->num_crtcs; |
1748 | connector_count = mode_group->num_connectors; |
||
1749 | encoder_count = mode_group->num_encoders; |
||
1750 | } |
||
1751 | |||
1752 | card_res->max_height = dev->mode_config.max_height; |
||
1753 | card_res->min_height = dev->mode_config.min_height; |
||
1754 | card_res->max_width = dev->mode_config.max_width; |
||
1755 | card_res->min_width = dev->mode_config.min_width; |
||
1756 | |||
1757 | /* CRTCs */ |
||
1758 | if (card_res->count_crtcs >= crtc_count) { |
||
1759 | copied = 0; |
||
1760 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
||
5060 | serge | 1761 | if (!mode_group) { |
1123 | serge | 1762 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1763 | head) { |
||
1963 | serge | 1764 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
1123 | serge | 1765 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1766 | ret = -EFAULT; |
||
1767 | goto out; |
||
1768 | } |
||
1769 | copied++; |
||
1770 | } |
||
1771 | } else { |
||
1772 | for (i = 0; i < mode_group->num_crtcs; i++) { |
||
1773 | if (put_user(mode_group->id_list[i], |
||
1774 | crtc_id + copied)) { |
||
1775 | ret = -EFAULT; |
||
1776 | goto out; |
||
1777 | } |
||
1778 | copied++; |
||
1779 | } |
||
1780 | } |
||
1781 | } |
||
1782 | card_res->count_crtcs = crtc_count; |
||
1783 | |||
1784 | /* Encoders */ |
||
1785 | if (card_res->count_encoders >= encoder_count) { |
||
1786 | copied = 0; |
||
1787 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
||
5060 | serge | 1788 | if (!mode_group) { |
1123 | serge | 1789 | list_for_each_entry(encoder, |
1790 | &dev->mode_config.encoder_list, |
||
1791 | head) { |
||
1963 | serge | 1792 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
5060 | serge | 1793 | encoder->name); |
1123 | serge | 1794 | if (put_user(encoder->base.id, encoder_id + |
1795 | copied)) { |
||
1796 | ret = -EFAULT; |
||
1797 | goto out; |
||
1798 | } |
||
1799 | copied++; |
||
1800 | } |
||
1801 | } else { |
||
1802 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { |
||
1803 | if (put_user(mode_group->id_list[i], |
||
1804 | encoder_id + copied)) { |
||
1805 | ret = -EFAULT; |
||
1806 | goto out; |
||
1807 | } |
||
1808 | copied++; |
||
1809 | } |
||
1810 | |||
1811 | } |
||
1812 | } |
||
1813 | card_res->count_encoders = encoder_count; |
||
1814 | |||
1815 | /* Connectors */ |
||
1816 | if (card_res->count_connectors >= connector_count) { |
||
1817 | copied = 0; |
||
1818 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
||
5060 | serge | 1819 | if (!mode_group) { |
1123 | serge | 1820 | list_for_each_entry(connector, |
1821 | &dev->mode_config.connector_list, |
||
1822 | head) { |
||
1963 | serge | 1823 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1824 | connector->base.id, |
||
5060 | serge | 1825 | connector->name); |
1123 | serge | 1826 | if (put_user(connector->base.id, |
1827 | connector_id + copied)) { |
||
1828 | ret = -EFAULT; |
||
1829 | goto out; |
||
1830 | } |
||
1831 | copied++; |
||
1832 | } |
||
1833 | } else { |
||
1834 | int start = mode_group->num_crtcs + |
||
1835 | mode_group->num_encoders; |
||
1836 | for (i = start; i < start + mode_group->num_connectors; i++) { |
||
1837 | if (put_user(mode_group->id_list[i], |
||
1838 | connector_id + copied)) { |
||
1839 | ret = -EFAULT; |
||
1840 | goto out; |
||
1841 | } |
||
1842 | copied++; |
||
1843 | } |
||
1844 | } |
||
1845 | } |
||
1846 | card_res->count_connectors = connector_count; |
||
1847 | |||
1963 | serge | 1848 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
1123 | serge | 1849 | card_res->count_connectors, card_res->count_encoders); |
1850 | |||
1851 | out: |
||
5271 | serge | 1852 | mutex_unlock(&dev->mode_config.mutex); |
1123 | serge | 1853 | return ret; |
1854 | } |
||
1855 | |||
1856 | /** |
||
1857 | * drm_mode_getcrtc - get CRTC configuration |
||
3480 | Serge | 1858 | * @dev: drm device for the ioctl |
1859 | * @data: data pointer for the ioctl |
||
1860 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1861 | * |
1862 | * Construct a CRTC configuration structure to return to the user. |
||
1863 | * |
||
1864 | * Called by the user via ioctl. |
||
1865 | * |
||
5060 | serge | 1866 | * Returns: |
5271 | serge | 1867 | * Zero on success, negative errno on failure. |
1123 | serge | 1868 | */ |
1869 | int drm_mode_getcrtc(struct drm_device *dev, |
||
1870 | void *data, struct drm_file *file_priv) |
||
1871 | { |
||
1872 | struct drm_mode_crtc *crtc_resp = data; |
||
1873 | struct drm_crtc *crtc; |
||
1874 | |||
1963 | serge | 1875 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1876 | return -EINVAL; |
||
1877 | |||
5060 | serge | 1878 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
5271 | serge | 1879 | if (!crtc) |
1880 | return -ENOENT; |
||
1123 | serge | 1881 | |
5271 | serge | 1882 | drm_modeset_lock_crtc(crtc, crtc->primary); |
1123 | serge | 1883 | crtc_resp->x = crtc->x; |
1884 | crtc_resp->y = crtc->y; |
||
1885 | crtc_resp->gamma_size = crtc->gamma_size; |
||
5060 | serge | 1886 | if (crtc->primary->fb) |
1887 | crtc_resp->fb_id = crtc->primary->fb->base.id; |
||
1123 | serge | 1888 | else |
1889 | crtc_resp->fb_id = 0; |
||
1890 | |||
1891 | if (crtc->enabled) { |
||
1892 | |||
1893 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
||
1894 | crtc_resp->mode_valid = 1; |
||
1895 | |||
1896 | } else { |
||
1897 | crtc_resp->mode_valid = 0; |
||
1898 | } |
||
5271 | serge | 1899 | drm_modeset_unlock_crtc(crtc); |
1123 | serge | 1900 | |
5271 | serge | 1901 | return 0; |
1123 | serge | 1902 | } |
1903 | |||
4560 | Serge | 1904 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1905 | const struct drm_file *file_priv) |
||
1906 | { |
||
1907 | /* |
||
1908 | * If user-space hasn't configured the driver to expose the stereo 3D |
||
1909 | * modes, don't expose them. |
||
1910 | */ |
||
1911 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) |
||
1912 | return false; |
||
1913 | |||
1914 | return true; |
||
1915 | } |
||
1916 | |||
5271 | serge | 1917 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
1918 | { |
||
1919 | /* For atomic drivers only state objects are synchronously updated and |
||
1920 | * protected by modeset locks, so check those first. */ |
||
1921 | if (connector->state) |
||
1922 | return connector->state->best_encoder; |
||
1923 | return connector->encoder; |
||
1924 | } |
||
1925 | |||
1123 | serge | 1926 | /** |
1927 | * drm_mode_getconnector - get connector configuration |
||
3480 | Serge | 1928 | * @dev: drm device for the ioctl |
1929 | * @data: data pointer for the ioctl |
||
1930 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1931 | * |
1932 | * Construct a connector configuration structure to return to the user. |
||
1933 | * |
||
1934 | * Called by the user via ioctl. |
||
1935 | * |
||
5060 | serge | 1936 | * Returns: |
5271 | serge | 1937 | * Zero on success, negative errno on failure. |
1123 | serge | 1938 | */ |
1939 | int drm_mode_getconnector(struct drm_device *dev, void *data, |
||
1940 | struct drm_file *file_priv) |
||
1941 | { |
||
1942 | struct drm_mode_get_connector *out_resp = data; |
||
1943 | struct drm_connector *connector; |
||
5271 | serge | 1944 | struct drm_encoder *encoder; |
1123 | serge | 1945 | struct drm_display_mode *mode; |
1946 | int mode_count = 0; |
||
1947 | int props_count = 0; |
||
1948 | int encoders_count = 0; |
||
1949 | int ret = 0; |
||
1950 | int copied = 0; |
||
1951 | int i; |
||
1952 | struct drm_mode_modeinfo u_mode; |
||
1953 | struct drm_mode_modeinfo __user *mode_ptr; |
||
1954 | uint32_t __user *prop_ptr; |
||
1955 | uint64_t __user *prop_values; |
||
1956 | uint32_t __user *encoder_ptr; |
||
1957 | |||
1963 | serge | 1958 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1959 | return -EINVAL; |
||
1960 | |||
1123 | serge | 1961 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1962 | |||
1963 | serge | 1963 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
1123 | serge | 1964 | |
1965 | mutex_lock(&dev->mode_config.mutex); |
||
1966 | |||
5060 | serge | 1967 | connector = drm_connector_find(dev, out_resp->connector_id); |
1968 | if (!connector) { |
||
4560 | Serge | 1969 | ret = -ENOENT; |
1123 | serge | 1970 | goto out; |
1971 | } |
||
1972 | |||
3031 | serge | 1973 | props_count = connector->properties.count; |
1123 | serge | 1974 | |
1975 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
||
1976 | if (connector->encoder_ids[i] != 0) { |
||
1977 | encoders_count++; |
||
1978 | } |
||
1979 | } |
||
1980 | |||
1981 | if (out_resp->count_modes == 0) { |
||
1982 | connector->funcs->fill_modes(connector, |
||
1983 | dev->mode_config.max_width, |
||
1984 | dev->mode_config.max_height); |
||
1985 | } |
||
1986 | |||
1987 | /* delayed so we get modes regardless of pre-fill_modes state */ |
||
1988 | list_for_each_entry(mode, &connector->modes, head) |
||
4560 | Serge | 1989 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1123 | serge | 1990 | mode_count++; |
1991 | |||
1992 | out_resp->connector_id = connector->base.id; |
||
1993 | out_resp->connector_type = connector->connector_type; |
||
1994 | out_resp->connector_type_id = connector->connector_type_id; |
||
1995 | out_resp->mm_width = connector->display_info.width_mm; |
||
1996 | out_resp->mm_height = connector->display_info.height_mm; |
||
1997 | out_resp->subpixel = connector->display_info.subpixel_order; |
||
1998 | out_resp->connection = connector->status; |
||
5060 | serge | 1999 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
5271 | serge | 2000 | |
2001 | encoder = drm_connector_get_encoder(connector); |
||
2002 | if (encoder) |
||
2003 | out_resp->encoder_id = encoder->base.id; |
||
1123 | serge | 2004 | else |
2005 | out_resp->encoder_id = 0; |
||
5060 | serge | 2006 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
1123 | serge | 2007 | |
2008 | /* |
||
2009 | * This ioctl is called twice, once to determine how much space is |
||
2010 | * needed, and the 2nd time to fill it. |
||
2011 | */ |
||
2012 | if ((out_resp->count_modes >= mode_count) && mode_count) { |
||
2013 | copied = 0; |
||
3031 | serge | 2014 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
1123 | serge | 2015 | list_for_each_entry(mode, &connector->modes, head) { |
4560 | Serge | 2016 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2017 | continue; |
||
2018 | |||
1123 | serge | 2019 | drm_crtc_convert_to_umode(&u_mode, mode); |
2020 | if (copy_to_user(mode_ptr + copied, |
||
2021 | &u_mode, sizeof(u_mode))) { |
||
2022 | ret = -EFAULT; |
||
2023 | goto out; |
||
2024 | } |
||
2025 | copied++; |
||
2026 | } |
||
2027 | } |
||
2028 | out_resp->count_modes = mode_count; |
||
2029 | |||
2030 | if ((out_resp->count_props >= props_count) && props_count) { |
||
2031 | copied = 0; |
||
3031 | serge | 2032 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
2033 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); |
||
2034 | for (i = 0; i < connector->properties.count; i++) { |
||
2035 | if (put_user(connector->properties.ids[i], |
||
1123 | serge | 2036 | prop_ptr + copied)) { |
2037 | ret = -EFAULT; |
||
2038 | goto out; |
||
2039 | } |
||
2040 | |||
3031 | serge | 2041 | if (put_user(connector->properties.values[i], |
1123 | serge | 2042 | prop_values + copied)) { |
2043 | ret = -EFAULT; |
||
2044 | goto out; |
||
2045 | } |
||
2046 | copied++; |
||
2047 | } |
||
2048 | } |
||
2049 | out_resp->count_props = props_count; |
||
2050 | |||
2051 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
||
2052 | copied = 0; |
||
3031 | serge | 2053 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
1123 | serge | 2054 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2055 | if (connector->encoder_ids[i] != 0) { |
||
2056 | if (put_user(connector->encoder_ids[i], |
||
2057 | encoder_ptr + copied)) { |
||
2058 | ret = -EFAULT; |
||
2059 | goto out; |
||
2060 | } |
||
2061 | copied++; |
||
2062 | } |
||
2063 | } |
||
2064 | } |
||
2065 | out_resp->count_encoders = encoders_count; |
||
2066 | |||
2067 | out: |
||
2068 | mutex_unlock(&dev->mode_config.mutex); |
||
3480 | Serge | 2069 | |
1123 | serge | 2070 | return ret; |
2071 | } |
||
2072 | |||
5271 | serge | 2073 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2074 | { |
||
2075 | struct drm_connector *connector; |
||
2076 | struct drm_device *dev = encoder->dev; |
||
2077 | bool uses_atomic = false; |
||
2078 | |||
2079 | /* For atomic drivers only state objects are synchronously updated and |
||
2080 | * protected by modeset locks, so check those first. */ |
||
2081 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
2082 | if (!connector->state) |
||
2083 | continue; |
||
2084 | |||
2085 | uses_atomic = true; |
||
2086 | |||
2087 | if (connector->state->best_encoder != encoder) |
||
2088 | continue; |
||
2089 | |||
2090 | return connector->state->crtc; |
||
2091 | } |
||
2092 | |||
2093 | /* Don't return stale data (e.g. pending async disable). */ |
||
2094 | if (uses_atomic) |
||
2095 | return NULL; |
||
2096 | |||
2097 | return encoder->crtc; |
||
2098 | } |
||
2099 | |||
5060 | serge | 2100 | /** |
2101 | * drm_mode_getencoder - get encoder configuration |
||
2102 | * @dev: drm device for the ioctl |
||
2103 | * @data: data pointer for the ioctl |
||
2104 | * @file_priv: drm file for the ioctl call |
||
2105 | * |
||
2106 | * Construct a encoder configuration structure to return to the user. |
||
2107 | * |
||
2108 | * Called by the user via ioctl. |
||
2109 | * |
||
2110 | * Returns: |
||
5271 | serge | 2111 | * Zero on success, negative errno on failure. |
5060 | serge | 2112 | */ |
1123 | serge | 2113 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2114 | struct drm_file *file_priv) |
||
2115 | { |
||
2116 | struct drm_mode_get_encoder *enc_resp = data; |
||
2117 | struct drm_encoder *encoder; |
||
5271 | serge | 2118 | struct drm_crtc *crtc; |
1123 | serge | 2119 | |
1963 | serge | 2120 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2121 | return -EINVAL; |
||
2122 | |||
5060 | serge | 2123 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
5271 | serge | 2124 | if (!encoder) |
2125 | return -ENOENT; |
||
1123 | serge | 2126 | |
5271 | serge | 2127 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
2128 | crtc = drm_encoder_get_crtc(encoder); |
||
2129 | if (crtc) |
||
2130 | enc_resp->crtc_id = crtc->base.id; |
||
2131 | else if (encoder->crtc) |
||
1123 | serge | 2132 | enc_resp->crtc_id = encoder->crtc->base.id; |
2133 | else |
||
2134 | enc_resp->crtc_id = 0; |
||
5271 | serge | 2135 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2136 | |||
1123 | serge | 2137 | enc_resp->encoder_type = encoder->encoder_type; |
2138 | enc_resp->encoder_id = encoder->base.id; |
||
2139 | enc_resp->possible_crtcs = encoder->possible_crtcs; |
||
2140 | enc_resp->possible_clones = encoder->possible_clones; |
||
2141 | |||
5271 | serge | 2142 | return 0; |
1123 | serge | 2143 | } |
2144 | |||
2145 | /** |
||
5060 | serge | 2146 | * drm_mode_getplane_res - enumerate all plane resources |
3031 | serge | 2147 | * @dev: DRM device |
2148 | * @data: ioctl data |
||
2149 | * @file_priv: DRM file info |
||
2150 | * |
||
5060 | serge | 2151 | * Construct a list of plane ids to return to the user. |
2152 | * |
||
2153 | * Called by the user via ioctl. |
||
2154 | * |
||
2155 | * Returns: |
||
5271 | serge | 2156 | * Zero on success, negative errno on failure. |
3031 | serge | 2157 | */ |
2158 | int drm_mode_getplane_res(struct drm_device *dev, void *data, |
||
2159 | struct drm_file *file_priv) |
||
2160 | { |
||
2161 | struct drm_mode_get_plane_res *plane_resp = data; |
||
2162 | struct drm_mode_config *config; |
||
2163 | struct drm_plane *plane; |
||
2164 | uint32_t __user *plane_ptr; |
||
5271 | serge | 2165 | int copied = 0; |
5060 | serge | 2166 | unsigned num_planes; |
3031 | serge | 2167 | |
2168 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2169 | return -EINVAL; |
||
2170 | |||
2171 | config = &dev->mode_config; |
||
2172 | |||
5060 | serge | 2173 | if (file_priv->universal_planes) |
2174 | num_planes = config->num_total_plane; |
||
2175 | else |
||
2176 | num_planes = config->num_overlay_plane; |
||
2177 | |||
3031 | serge | 2178 | /* |
2179 | * This ioctl is called twice, once to determine how much space is |
||
2180 | * needed, and the 2nd time to fill it. |
||
2181 | */ |
||
5060 | serge | 2182 | if (num_planes && |
2183 | (plane_resp->count_planes >= num_planes)) { |
||
3031 | serge | 2184 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
2185 | |||
5271 | serge | 2186 | /* Plane lists are invariant, no locking needed. */ |
3031 | serge | 2187 | list_for_each_entry(plane, &config->plane_list, head) { |
5060 | serge | 2188 | /* |
2189 | * Unless userspace set the 'universal planes' |
||
2190 | * capability bit, only advertise overlays. |
||
2191 | */ |
||
2192 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && |
||
2193 | !file_priv->universal_planes) |
||
2194 | continue; |
||
2195 | |||
5271 | serge | 2196 | if (put_user(plane->base.id, plane_ptr + copied)) |
2197 | return -EFAULT; |
||
3031 | serge | 2198 | copied++; |
2199 | } |
||
2200 | } |
||
5060 | serge | 2201 | plane_resp->count_planes = num_planes; |
3031 | serge | 2202 | |
5271 | serge | 2203 | return 0; |
3031 | serge | 2204 | } |
2205 | |||
2206 | /** |
||
5060 | serge | 2207 | * drm_mode_getplane - get plane configuration |
3031 | serge | 2208 | * @dev: DRM device |
2209 | * @data: ioctl data |
||
2210 | * @file_priv: DRM file info |
||
2211 | * |
||
5060 | serge | 2212 | * Construct a plane configuration structure to return to the user. |
2213 | * |
||
2214 | * Called by the user via ioctl. |
||
2215 | * |
||
2216 | * Returns: |
||
5271 | serge | 2217 | * Zero on success, negative errno on failure. |
3031 | serge | 2218 | */ |
2219 | int drm_mode_getplane(struct drm_device *dev, void *data, |
||
2220 | struct drm_file *file_priv) |
||
2221 | { |
||
2222 | struct drm_mode_get_plane *plane_resp = data; |
||
2223 | struct drm_plane *plane; |
||
2224 | uint32_t __user *format_ptr; |
||
2225 | |||
2226 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2227 | return -EINVAL; |
||
2228 | |||
5060 | serge | 2229 | plane = drm_plane_find(dev, plane_resp->plane_id); |
5271 | serge | 2230 | if (!plane) |
2231 | return -ENOENT; |
||
3031 | serge | 2232 | |
5271 | serge | 2233 | drm_modeset_lock(&plane->mutex, NULL); |
3031 | serge | 2234 | if (plane->crtc) |
2235 | plane_resp->crtc_id = plane->crtc->base.id; |
||
2236 | else |
||
2237 | plane_resp->crtc_id = 0; |
||
2238 | |||
2239 | if (plane->fb) |
||
2240 | plane_resp->fb_id = plane->fb->base.id; |
||
2241 | else |
||
2242 | plane_resp->fb_id = 0; |
||
5271 | serge | 2243 | drm_modeset_unlock(&plane->mutex); |
3031 | serge | 2244 | |
2245 | plane_resp->plane_id = plane->base.id; |
||
2246 | plane_resp->possible_crtcs = plane->possible_crtcs; |
||
4075 | Serge | 2247 | plane_resp->gamma_size = 0; |
3031 | serge | 2248 | |
2249 | /* |
||
2250 | * This ioctl is called twice, once to determine how much space is |
||
2251 | * needed, and the 2nd time to fill it. |
||
2252 | */ |
||
2253 | if (plane->format_count && |
||
2254 | (plane_resp->count_format_types >= plane->format_count)) { |
||
2255 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
||
2256 | if (copy_to_user(format_ptr, |
||
2257 | plane->format_types, |
||
2258 | sizeof(uint32_t) * plane->format_count)) { |
||
5271 | serge | 2259 | return -EFAULT; |
3031 | serge | 2260 | } |
2261 | } |
||
2262 | plane_resp->count_format_types = plane->format_count; |
||
2263 | |||
5271 | serge | 2264 | return 0; |
3031 | serge | 2265 | } |
2266 | |||
5060 | serge | 2267 | /* |
2268 | * setplane_internal - setplane handler for internal callers |
||
3031 | serge | 2269 | * |
5060 | serge | 2270 | * Note that we assume an extra reference has already been taken on fb. If the |
2271 | * update fails, this reference will be dropped before return; if it succeeds, |
||
2272 | * the previous framebuffer (if any) will be unreferenced instead. |
||
2273 | * |
||
2274 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
||
3031 | serge | 2275 | */ |
5271 | serge | 2276 | static int __setplane_internal(struct drm_plane *plane, |
5060 | serge | 2277 | struct drm_crtc *crtc, |
2278 | struct drm_framebuffer *fb, |
||
2279 | int32_t crtc_x, int32_t crtc_y, |
||
2280 | uint32_t crtc_w, uint32_t crtc_h, |
||
2281 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2282 | uint32_t src_x, uint32_t src_y, |
||
2283 | uint32_t src_w, uint32_t src_h) |
||
3031 | serge | 2284 | { |
2285 | int ret = 0; |
||
2286 | unsigned int fb_width, fb_height; |
||
5271 | serge | 2287 | unsigned int i; |
3031 | serge | 2288 | |
2289 | /* No fb means shut it down */ |
||
5060 | serge | 2290 | if (!fb) { |
5271 | serge | 2291 | plane->old_fb = plane->fb; |
5060 | serge | 2292 | ret = plane->funcs->disable_plane(plane); |
2293 | if (!ret) { |
||
3031 | serge | 2294 | plane->crtc = NULL; |
2295 | plane->fb = NULL; |
||
5060 | serge | 2296 | } else { |
5271 | serge | 2297 | plane->old_fb = NULL; |
5060 | serge | 2298 | } |
3031 | serge | 2299 | goto out; |
2300 | } |
||
2301 | |||
5060 | serge | 2302 | /* Check whether this plane is usable on this CRTC */ |
2303 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { |
||
2304 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); |
||
2305 | ret = -EINVAL; |
||
3031 | serge | 2306 | goto out; |
2307 | } |
||
2308 | |||
2309 | /* Check whether this plane supports the fb pixel format. */ |
||
2310 | for (i = 0; i < plane->format_count; i++) |
||
2311 | if (fb->pixel_format == plane->format_types[i]) |
||
2312 | break; |
||
2313 | if (i == plane->format_count) { |
||
4075 | Serge | 2314 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2315 | drm_get_format_name(fb->pixel_format)); |
||
3031 | serge | 2316 | ret = -EINVAL; |
2317 | goto out; |
||
2318 | } |
||
2319 | |||
2320 | fb_width = fb->width << 16; |
||
2321 | fb_height = fb->height << 16; |
||
2322 | |||
2323 | /* Make sure source coordinates are inside the fb. */ |
||
5060 | serge | 2324 | if (src_w > fb_width || |
2325 | src_x > fb_width - src_w || |
||
2326 | src_h > fb_height || |
||
2327 | src_y > fb_height - src_h) { |
||
3031 | serge | 2328 | DRM_DEBUG_KMS("Invalid source coordinates " |
2329 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
||
5060 | serge | 2330 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2331 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, |
||
2332 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, |
||
2333 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); |
||
3031 | serge | 2334 | ret = -ENOSPC; |
2335 | goto out; |
||
2336 | } |
||
2337 | |||
5271 | serge | 2338 | plane->old_fb = plane->fb; |
3031 | serge | 2339 | ret = plane->funcs->update_plane(plane, crtc, fb, |
5060 | serge | 2340 | crtc_x, crtc_y, crtc_w, crtc_h, |
2341 | src_x, src_y, src_w, src_h); |
||
3031 | serge | 2342 | if (!ret) { |
2343 | plane->crtc = crtc; |
||
2344 | plane->fb = fb; |
||
3480 | Serge | 2345 | fb = NULL; |
5060 | serge | 2346 | } else { |
5271 | serge | 2347 | plane->old_fb = NULL; |
3031 | serge | 2348 | } |
2349 | |||
2350 | out: |
||
3480 | Serge | 2351 | if (fb) |
2352 | drm_framebuffer_unreference(fb); |
||
5271 | serge | 2353 | if (plane->old_fb) |
2354 | drm_framebuffer_unreference(plane->old_fb); |
||
2355 | plane->old_fb = NULL; |
||
3031 | serge | 2356 | |
2357 | return ret; |
||
5271 | serge | 2358 | } |
5060 | serge | 2359 | |
5271 | serge | 2360 | static int setplane_internal(struct drm_plane *plane, |
2361 | struct drm_crtc *crtc, |
||
2362 | struct drm_framebuffer *fb, |
||
2363 | int32_t crtc_x, int32_t crtc_y, |
||
2364 | uint32_t crtc_w, uint32_t crtc_h, |
||
2365 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2366 | uint32_t src_x, uint32_t src_y, |
||
2367 | uint32_t src_w, uint32_t src_h) |
||
2368 | { |
||
2369 | int ret; |
||
2370 | |||
2371 | drm_modeset_lock_all(plane->dev); |
||
2372 | ret = __setplane_internal(plane, crtc, fb, |
||
2373 | crtc_x, crtc_y, crtc_w, crtc_h, |
||
2374 | src_x, src_y, src_w, src_h); |
||
2375 | drm_modeset_unlock_all(plane->dev); |
||
2376 | |||
2377 | return ret; |
||
3031 | serge | 2378 | } |
5060 | serge | 2379 | |
2380 | /** |
||
2381 | * drm_mode_setplane - configure a plane's configuration |
||
2382 | * @dev: DRM device |
||
2383 | * @data: ioctl data* |
||
2384 | * @file_priv: DRM file info |
||
2385 | * |
||
2386 | * Set plane configuration, including placement, fb, scaling, and other factors. |
||
2387 | * Or pass a NULL fb to disable (planes may be disabled without providing a |
||
2388 | * valid crtc). |
||
2389 | * |
||
2390 | * Returns: |
||
5271 | serge | 2391 | * Zero on success, negative errno on failure. |
5060 | serge | 2392 | */ |
2393 | int drm_mode_setplane(struct drm_device *dev, void *data, |
||
2394 | struct drm_file *file_priv) |
||
2395 | { |
||
2396 | struct drm_mode_set_plane *plane_req = data; |
||
2397 | struct drm_plane *plane; |
||
2398 | struct drm_crtc *crtc = NULL; |
||
2399 | struct drm_framebuffer *fb = NULL; |
||
2400 | |||
2401 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2402 | return -EINVAL; |
||
2403 | |||
2404 | /* Give drivers some help against integer overflows */ |
||
2405 | if (plane_req->crtc_w > INT_MAX || |
||
2406 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || |
||
2407 | plane_req->crtc_h > INT_MAX || |
||
2408 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { |
||
2409 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", |
||
2410 | plane_req->crtc_w, plane_req->crtc_h, |
||
2411 | plane_req->crtc_x, plane_req->crtc_y); |
||
2412 | return -ERANGE; |
||
2413 | } |
||
2414 | |||
2415 | /* |
||
2416 | * First, find the plane, crtc, and fb objects. If not available, |
||
2417 | * we don't bother to call the driver. |
||
2418 | */ |
||
5271 | serge | 2419 | plane = drm_plane_find(dev, plane_req->plane_id); |
2420 | if (!plane) { |
||
5060 | serge | 2421 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2422 | plane_req->plane_id); |
||
2423 | return -ENOENT; |
||
2424 | } |
||
2425 | |||
2426 | if (plane_req->fb_id) { |
||
2427 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
||
2428 | if (!fb) { |
||
2429 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
||
2430 | plane_req->fb_id); |
||
2431 | return -ENOENT; |
||
2432 | } |
||
2433 | |||
5271 | serge | 2434 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2435 | if (!crtc) { |
||
5060 | serge | 2436 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2437 | plane_req->crtc_id); |
||
2438 | return -ENOENT; |
||
2439 | } |
||
2440 | } |
||
2441 | |||
2442 | /* |
||
2443 | * setplane_internal will take care of deref'ing either the old or new |
||
2444 | * framebuffer depending on success. |
||
2445 | */ |
||
2446 | return setplane_internal(plane, crtc, fb, |
||
2447 | plane_req->crtc_x, plane_req->crtc_y, |
||
2448 | plane_req->crtc_w, plane_req->crtc_h, |
||
2449 | plane_req->src_x, plane_req->src_y, |
||
2450 | plane_req->src_w, plane_req->src_h); |
||
2451 | } |
||
3480 | Serge | 2452 | #endif |
3031 | serge | 2453 | |
2454 | /** |
||
3480 | Serge | 2455 | * drm_mode_set_config_internal - helper to call ->set_config |
2456 | * @set: modeset config to set |
||
2457 | * |
||
2458 | * This is a little helper to wrap internal calls to the ->set_config driver |
||
2459 | * interface. The only thing it adds is correct refcounting dance. |
||
5060 | serge | 2460 | * |
2461 | * Returns: |
||
5271 | serge | 2462 | * Zero on success, negative errno on failure. |
3480 | Serge | 2463 | */ |
2464 | int drm_mode_set_config_internal(struct drm_mode_set *set) |
||
2465 | { |
||
2466 | struct drm_crtc *crtc = set->crtc; |
||
4075 | Serge | 2467 | struct drm_framebuffer *fb; |
2468 | struct drm_crtc *tmp; |
||
3480 | Serge | 2469 | int ret; |
2470 | |||
4075 | Serge | 2471 | /* |
2472 | * NOTE: ->set_config can also disable other crtcs (if we steal all |
||
2473 | * connectors from it), hence we need to refcount the fbs across all |
||
2474 | * crtcs. Atomic modeset will have saner semantics ... |
||
2475 | */ |
||
2476 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) |
||
5271 | serge | 2477 | tmp->primary->old_fb = tmp->primary->fb; |
4075 | Serge | 2478 | |
3480 | Serge | 2479 | fb = set->fb; |
2480 | |||
2481 | ret = crtc->funcs->set_config(set); |
||
2482 | if (ret == 0) { |
||
5060 | serge | 2483 | crtc->primary->crtc = crtc; |
2484 | crtc->primary->fb = fb; |
||
3480 | Serge | 2485 | } |
2486 | |||
4075 | Serge | 2487 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
5060 | serge | 2488 | if (tmp->primary->fb) |
2489 | drm_framebuffer_reference(tmp->primary->fb); |
||
4075 | Serge | 2490 | // if (tmp->old_fb) |
2491 | // drm_framebuffer_unreference(tmp->old_fb); |
||
2492 | } |
||
2493 | |||
3480 | Serge | 2494 | return ret; |
2495 | } |
||
2496 | EXPORT_SYMBOL(drm_mode_set_config_internal); |
||
2497 | |||
2498 | #if 0 |
||
5060 | serge | 2499 | /** |
2500 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the |
||
2501 | * CRTC viewport |
||
2502 | * @crtc: CRTC that framebuffer will be displayed on |
||
2503 | * @x: x panning |
||
2504 | * @y: y panning |
||
2505 | * @mode: mode that framebuffer will be displayed under |
||
2506 | * @fb: framebuffer to check size of |
||
4560 | Serge | 2507 | */ |
5060 | serge | 2508 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
4560 | Serge | 2509 | int x, int y, |
2510 | const struct drm_display_mode *mode, |
||
2511 | const struct drm_framebuffer *fb) |
||
2512 | |||
2513 | { |
||
2514 | int hdisplay, vdisplay; |
||
2515 | |||
2516 | hdisplay = mode->hdisplay; |
||
2517 | vdisplay = mode->vdisplay; |
||
2518 | |||
2519 | if (drm_mode_is_stereo(mode)) { |
||
2520 | struct drm_display_mode adjusted = *mode; |
||
2521 | |||
2522 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); |
||
2523 | hdisplay = adjusted.crtc_hdisplay; |
||
2524 | vdisplay = adjusted.crtc_vdisplay; |
||
2525 | } |
||
2526 | |||
2527 | if (crtc->invert_dimensions) |
||
2528 | swap(hdisplay, vdisplay); |
||
2529 | |||
2530 | if (hdisplay > fb->width || |
||
2531 | vdisplay > fb->height || |
||
2532 | x > fb->width - hdisplay || |
||
2533 | y > fb->height - vdisplay) { |
||
2534 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", |
||
2535 | fb->width, fb->height, hdisplay, vdisplay, x, y, |
||
2536 | crtc->invert_dimensions ? " (inverted)" : ""); |
||
2537 | return -ENOSPC; |
||
2538 | } |
||
2539 | |||
2540 | return 0; |
||
2541 | } |
||
5060 | serge | 2542 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
4560 | Serge | 2543 | |
3480 | Serge | 2544 | /** |
1123 | serge | 2545 | * drm_mode_setcrtc - set CRTC configuration |
3480 | Serge | 2546 | * @dev: drm device for the ioctl |
2547 | * @data: data pointer for the ioctl |
||
2548 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2549 | * |
2550 | * Build a new CRTC configuration based on user request. |
||
2551 | * |
||
2552 | * Called by the user via ioctl. |
||
2553 | * |
||
5060 | serge | 2554 | * Returns: |
5271 | serge | 2555 | * Zero on success, negative errno on failure. |
1123 | serge | 2556 | */ |
2557 | int drm_mode_setcrtc(struct drm_device *dev, void *data, |
||
2558 | struct drm_file *file_priv) |
||
2559 | { |
||
2560 | struct drm_mode_config *config = &dev->mode_config; |
||
2561 | struct drm_mode_crtc *crtc_req = data; |
||
3031 | serge | 2562 | struct drm_crtc *crtc; |
1123 | serge | 2563 | struct drm_connector **connector_set = NULL, *connector; |
2564 | struct drm_framebuffer *fb = NULL; |
||
2565 | struct drm_display_mode *mode = NULL; |
||
2566 | struct drm_mode_set set; |
||
2567 | uint32_t __user *set_connectors_ptr; |
||
3031 | serge | 2568 | int ret; |
1123 | serge | 2569 | int i; |
2570 | |||
1963 | serge | 2571 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2572 | return -EINVAL; |
||
2573 | |||
3031 | serge | 2574 | /* For some reason crtc x/y offsets are signed internally. */ |
2575 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) |
||
2576 | return -ERANGE; |
||
2577 | |||
3480 | Serge | 2578 | drm_modeset_lock_all(dev); |
5060 | serge | 2579 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2580 | if (!crtc) { |
||
1179 | serge | 2581 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
4560 | Serge | 2582 | ret = -ENOENT; |
1123 | serge | 2583 | goto out; |
2584 | } |
||
1963 | serge | 2585 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
1123 | serge | 2586 | |
2587 | if (crtc_req->mode_valid) { |
||
2588 | /* If we have a mode we need a framebuffer. */ |
||
2589 | /* If we pass -1, set the mode with the currently bound fb */ |
||
2590 | if (crtc_req->fb_id == -1) { |
||
5060 | serge | 2591 | if (!crtc->primary->fb) { |
3031 | serge | 2592 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2593 | ret = -EINVAL; |
||
2594 | goto out; |
||
2595 | } |
||
5060 | serge | 2596 | fb = crtc->primary->fb; |
3480 | Serge | 2597 | /* Make refcounting symmetric with the lookup path. */ |
2598 | drm_framebuffer_reference(fb); |
||
1123 | serge | 2599 | } else { |
3480 | Serge | 2600 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2601 | if (!fb) { |
||
1179 | serge | 2602 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2603 | crtc_req->fb_id); |
||
4560 | Serge | 2604 | ret = -ENOENT; |
1123 | serge | 2605 | goto out; |
2606 | } |
||
2607 | } |
||
2608 | |||
2609 | mode = drm_mode_create(dev); |
||
3031 | serge | 2610 | if (!mode) { |
2611 | ret = -ENOMEM; |
||
2612 | goto out; |
||
2613 | } |
||
2614 | |||
2615 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
||
2616 | if (ret) { |
||
2617 | DRM_DEBUG_KMS("Invalid mode\n"); |
||
2618 | goto out; |
||
2619 | } |
||
2620 | |||
1123 | serge | 2621 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
3031 | serge | 2622 | |
4560 | Serge | 2623 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2624 | mode, fb); |
||
2625 | if (ret) |
||
2626 | goto out; |
||
3031 | serge | 2627 | |
1123 | serge | 2628 | } |
2629 | |||
2630 | if (crtc_req->count_connectors == 0 && mode) { |
||
1179 | serge | 2631 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
1123 | serge | 2632 | ret = -EINVAL; |
2633 | goto out; |
||
2634 | } |
||
2635 | |||
1179 | serge | 2636 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
2637 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
||
1123 | serge | 2638 | crtc_req->count_connectors); |
2639 | ret = -EINVAL; |
||
2640 | goto out; |
||
2641 | } |
||
2642 | |||
2643 | if (crtc_req->count_connectors > 0) { |
||
2644 | u32 out_id; |
||
2645 | |||
2646 | /* Avoid unbounded kernel memory allocation */ |
||
2647 | if (crtc_req->count_connectors > config->num_connector) { |
||
2648 | ret = -EINVAL; |
||
2649 | goto out; |
||
2650 | } |
||
2651 | |||
2652 | connector_set = kmalloc(crtc_req->count_connectors * |
||
2653 | sizeof(struct drm_connector *), |
||
2654 | GFP_KERNEL); |
||
2655 | if (!connector_set) { |
||
2656 | ret = -ENOMEM; |
||
2657 | goto out; |
||
2658 | } |
||
2659 | |||
2660 | for (i = 0; i < crtc_req->count_connectors; i++) { |
||
3031 | serge | 2661 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
1123 | serge | 2662 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2663 | ret = -EFAULT; |
||
2664 | goto out; |
||
2665 | } |
||
2666 | |||
5060 | serge | 2667 | connector = drm_connector_find(dev, out_id); |
2668 | if (!connector) { |
||
1179 | serge | 2669 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2670 | out_id); |
||
4560 | Serge | 2671 | ret = -ENOENT; |
1123 | serge | 2672 | goto out; |
2673 | } |
||
1963 | serge | 2674 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2675 | connector->base.id, |
||
5060 | serge | 2676 | connector->name); |
1123 | serge | 2677 | |
2678 | connector_set[i] = connector; |
||
2679 | } |
||
2680 | } |
||
2681 | |||
2682 | set.crtc = crtc; |
||
2683 | set.x = crtc_req->x; |
||
2684 | set.y = crtc_req->y; |
||
2685 | set.mode = mode; |
||
2686 | set.connectors = connector_set; |
||
2687 | set.num_connectors = crtc_req->count_connectors; |
||
1179 | serge | 2688 | set.fb = fb; |
3480 | Serge | 2689 | ret = drm_mode_set_config_internal(&set); |
1123 | serge | 2690 | |
2691 | out: |
||
3480 | Serge | 2692 | if (fb) |
2693 | drm_framebuffer_unreference(fb); |
||
2694 | |||
1123 | serge | 2695 | kfree(connector_set); |
3031 | serge | 2696 | drm_mode_destroy(dev, mode); |
3480 | Serge | 2697 | drm_modeset_unlock_all(dev); |
1123 | serge | 2698 | return ret; |
2699 | } |
||
2700 | |||
4075 | Serge | 2701 | static int drm_mode_cursor_common(struct drm_device *dev, |
2702 | struct drm_mode_cursor2 *req, |
||
2703 | struct drm_file *file_priv) |
||
1123 | serge | 2704 | { |
2705 | struct drm_crtc *crtc; |
||
2706 | int ret = 0; |
||
2707 | |||
1963 | serge | 2708 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2709 | return -EINVAL; |
||
2710 | |||
3031 | serge | 2711 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
1123 | serge | 2712 | return -EINVAL; |
2713 | |||
5060 | serge | 2714 | crtc = drm_crtc_find(dev, req->crtc_id); |
2715 | if (!crtc) { |
||
1179 | serge | 2716 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
4560 | Serge | 2717 | return -ENOENT; |
1123 | serge | 2718 | } |
2719 | |||
5060 | serge | 2720 | /* |
2721 | * If this crtc has a universal cursor plane, call that plane's update |
||
2722 | * handler rather than using legacy cursor handlers. |
||
2723 | */ |
||
5271 | serge | 2724 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
2725 | if (crtc->cursor) { |
||
2726 | ret = drm_mode_cursor_universal(crtc, req, file_priv); |
||
2727 | goto out; |
||
2728 | } |
||
5060 | serge | 2729 | |
1123 | serge | 2730 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4075 | Serge | 2731 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
1123 | serge | 2732 | ret = -ENXIO; |
2733 | goto out; |
||
2734 | } |
||
2735 | /* Turns off the cursor if handle is 0 */ |
||
4075 | Serge | 2736 | if (crtc->funcs->cursor_set2) |
2737 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, |
||
2738 | req->width, req->height, req->hot_x, req->hot_y); |
||
2739 | else |
||
1123 | serge | 2740 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
2741 | req->width, req->height); |
||
2742 | } |
||
2743 | |||
2744 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
||
2745 | if (crtc->funcs->cursor_move) { |
||
2746 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
||
2747 | } else { |
||
2748 | ret = -EFAULT; |
||
2749 | goto out; |
||
2750 | } |
||
2751 | } |
||
2752 | out: |
||
5271 | serge | 2753 | drm_modeset_unlock_crtc(crtc); |
3480 | Serge | 2754 | |
1123 | serge | 2755 | return ret; |
4075 | Serge | 2756 | |
1123 | serge | 2757 | } |
5060 | serge | 2758 | |
2759 | |||
2760 | /** |
||
2761 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration |
||
2762 | * @dev: drm device for the ioctl |
||
2763 | * @data: data pointer for the ioctl |
||
2764 | * @file_priv: drm file for the ioctl call |
||
2765 | * |
||
2766 | * Set the cursor configuration based on user request. |
||
2767 | * |
||
2768 | * Called by the user via ioctl. |
||
2769 | * |
||
2770 | * Returns: |
||
5271 | serge | 2771 | * Zero on success, negative errno on failure. |
5060 | serge | 2772 | */ |
4075 | Serge | 2773 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
2774 | void *data, struct drm_file *file_priv) |
||
2775 | { |
||
2776 | struct drm_mode_cursor *req = data; |
||
2777 | struct drm_mode_cursor2 new_req; |
||
2778 | |||
2779 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); |
||
2780 | new_req.hot_x = new_req.hot_y = 0; |
||
2781 | |||
2782 | return drm_mode_cursor_common(dev, &new_req, file_priv); |
||
2783 | } |
||
2784 | |||
5060 | serge | 2785 | /** |
2786 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration |
||
2787 | * @dev: drm device for the ioctl |
||
2788 | * @data: data pointer for the ioctl |
||
2789 | * @file_priv: drm file for the ioctl call |
||
2790 | * |
||
2791 | * Set the cursor configuration based on user request. This implements the 2nd |
||
2792 | * version of the cursor ioctl, which allows userspace to additionally specify |
||
2793 | * the hotspot of the pointer. |
||
2794 | * |
||
2795 | * Called by the user via ioctl. |
||
2796 | * |
||
2797 | * Returns: |
||
5271 | serge | 2798 | * Zero on success, negative errno on failure. |
5060 | serge | 2799 | */ |
4075 | Serge | 2800 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2801 | void *data, struct drm_file *file_priv) |
||
2802 | { |
||
2803 | struct drm_mode_cursor2 *req = data; |
||
2804 | return drm_mode_cursor_common(dev, req, file_priv); |
||
2805 | } |
||
3031 | serge | 2806 | #endif |
4560 | Serge | 2807 | |
5060 | serge | 2808 | /** |
2809 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description |
||
2810 | * @bpp: bits per pixels |
||
2811 | * @depth: bit depth per pixel |
||
2812 | * |
||
2813 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. |
||
2814 | * Useful in fbdev emulation code, since that deals in those values. |
||
2815 | */ |
||
3031 | serge | 2816 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2817 | { |
||
2818 | uint32_t fmt; |
||
1123 | serge | 2819 | |
3031 | serge | 2820 | switch (bpp) { |
2821 | case 8: |
||
3480 | Serge | 2822 | fmt = DRM_FORMAT_C8; |
3031 | serge | 2823 | break; |
2824 | case 16: |
||
2825 | if (depth == 15) |
||
2826 | fmt = DRM_FORMAT_XRGB1555; |
||
2827 | else |
||
2828 | fmt = DRM_FORMAT_RGB565; |
||
2829 | break; |
||
2830 | case 24: |
||
2831 | fmt = DRM_FORMAT_RGB888; |
||
2832 | break; |
||
2833 | case 32: |
||
2834 | if (depth == 24) |
||
2835 | fmt = DRM_FORMAT_XRGB8888; |
||
2836 | else if (depth == 30) |
||
2837 | fmt = DRM_FORMAT_XRGB2101010; |
||
2838 | else |
||
2839 | fmt = DRM_FORMAT_ARGB8888; |
||
2840 | break; |
||
2841 | default: |
||
2842 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
||
2843 | fmt = DRM_FORMAT_XRGB8888; |
||
2844 | break; |
||
2845 | } |
||
2846 | |||
2847 | return fmt; |
||
2848 | } |
||
2849 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); |
||
2850 | #if 0 |
||
1123 | serge | 2851 | /** |
2852 | * drm_mode_addfb - add an FB to the graphics configuration |
||
3480 | Serge | 2853 | * @dev: drm device for the ioctl |
2854 | * @data: data pointer for the ioctl |
||
2855 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2856 | * |
5060 | serge | 2857 | * Add a new FB to the specified CRTC, given a user request. This is the |
5271 | serge | 2858 | * original addfb ioctl which only supported RGB formats. |
1123 | serge | 2859 | * |
2860 | * Called by the user via ioctl. |
||
2861 | * |
||
5060 | serge | 2862 | * Returns: |
5271 | serge | 2863 | * Zero on success, negative errno on failure. |
1123 | serge | 2864 | */ |
2865 | int drm_mode_addfb(struct drm_device *dev, |
||
2866 | void *data, struct drm_file *file_priv) |
||
2867 | { |
||
3031 | serge | 2868 | struct drm_mode_fb_cmd *or = data; |
2869 | struct drm_mode_fb_cmd2 r = {}; |
||
5271 | serge | 2870 | int ret; |
1123 | serge | 2871 | |
5271 | serge | 2872 | /* convert to new format and call new ioctl */ |
3031 | serge | 2873 | r.fb_id = or->fb_id; |
2874 | r.width = or->width; |
||
2875 | r.height = or->height; |
||
2876 | r.pitches[0] = or->pitch; |
||
2877 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); |
||
2878 | r.handles[0] = or->handle; |
||
2879 | |||
5271 | serge | 2880 | ret = drm_mode_addfb2(dev, &r, file_priv); |
2881 | if (ret) |
||
2882 | return ret; |
||
1963 | serge | 2883 | |
5271 | serge | 2884 | or->fb_id = r.fb_id; |
3031 | serge | 2885 | |
5271 | serge | 2886 | return 0; |
3031 | serge | 2887 | } |
2888 | |||
2889 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
||
2890 | { |
||
2891 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; |
||
2892 | |||
2893 | switch (format) { |
||
2894 | case DRM_FORMAT_C8: |
||
2895 | case DRM_FORMAT_RGB332: |
||
2896 | case DRM_FORMAT_BGR233: |
||
2897 | case DRM_FORMAT_XRGB4444: |
||
2898 | case DRM_FORMAT_XBGR4444: |
||
2899 | case DRM_FORMAT_RGBX4444: |
||
2900 | case DRM_FORMAT_BGRX4444: |
||
2901 | case DRM_FORMAT_ARGB4444: |
||
2902 | case DRM_FORMAT_ABGR4444: |
||
2903 | case DRM_FORMAT_RGBA4444: |
||
2904 | case DRM_FORMAT_BGRA4444: |
||
2905 | case DRM_FORMAT_XRGB1555: |
||
2906 | case DRM_FORMAT_XBGR1555: |
||
2907 | case DRM_FORMAT_RGBX5551: |
||
2908 | case DRM_FORMAT_BGRX5551: |
||
2909 | case DRM_FORMAT_ARGB1555: |
||
2910 | case DRM_FORMAT_ABGR1555: |
||
2911 | case DRM_FORMAT_RGBA5551: |
||
2912 | case DRM_FORMAT_BGRA5551: |
||
2913 | case DRM_FORMAT_RGB565: |
||
2914 | case DRM_FORMAT_BGR565: |
||
2915 | case DRM_FORMAT_RGB888: |
||
2916 | case DRM_FORMAT_BGR888: |
||
2917 | case DRM_FORMAT_XRGB8888: |
||
2918 | case DRM_FORMAT_XBGR8888: |
||
2919 | case DRM_FORMAT_RGBX8888: |
||
2920 | case DRM_FORMAT_BGRX8888: |
||
2921 | case DRM_FORMAT_ARGB8888: |
||
2922 | case DRM_FORMAT_ABGR8888: |
||
2923 | case DRM_FORMAT_RGBA8888: |
||
2924 | case DRM_FORMAT_BGRA8888: |
||
2925 | case DRM_FORMAT_XRGB2101010: |
||
2926 | case DRM_FORMAT_XBGR2101010: |
||
2927 | case DRM_FORMAT_RGBX1010102: |
||
2928 | case DRM_FORMAT_BGRX1010102: |
||
2929 | case DRM_FORMAT_ARGB2101010: |
||
2930 | case DRM_FORMAT_ABGR2101010: |
||
2931 | case DRM_FORMAT_RGBA1010102: |
||
2932 | case DRM_FORMAT_BGRA1010102: |
||
2933 | case DRM_FORMAT_YUYV: |
||
2934 | case DRM_FORMAT_YVYU: |
||
2935 | case DRM_FORMAT_UYVY: |
||
2936 | case DRM_FORMAT_VYUY: |
||
2937 | case DRM_FORMAT_AYUV: |
||
2938 | case DRM_FORMAT_NV12: |
||
2939 | case DRM_FORMAT_NV21: |
||
2940 | case DRM_FORMAT_NV16: |
||
2941 | case DRM_FORMAT_NV61: |
||
2942 | case DRM_FORMAT_NV24: |
||
2943 | case DRM_FORMAT_NV42: |
||
2944 | case DRM_FORMAT_YUV410: |
||
2945 | case DRM_FORMAT_YVU410: |
||
2946 | case DRM_FORMAT_YUV411: |
||
2947 | case DRM_FORMAT_YVU411: |
||
2948 | case DRM_FORMAT_YUV420: |
||
2949 | case DRM_FORMAT_YVU420: |
||
2950 | case DRM_FORMAT_YUV422: |
||
2951 | case DRM_FORMAT_YVU422: |
||
2952 | case DRM_FORMAT_YUV444: |
||
2953 | case DRM_FORMAT_YVU444: |
||
2954 | return 0; |
||
2955 | default: |
||
4560 | Serge | 2956 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2957 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 2958 | return -EINVAL; |
2959 | } |
||
2960 | } |
||
2961 | |||
2962 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
||
2963 | { |
||
2964 | int ret, hsub, vsub, num_planes, i; |
||
2965 | |||
2966 | ret = format_check(r); |
||
2967 | if (ret) { |
||
4075 | Serge | 2968 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2969 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 2970 | return ret; |
2971 | } |
||
2972 | |||
2973 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); |
||
2974 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); |
||
2975 | num_planes = drm_format_num_planes(r->pixel_format); |
||
2976 | |||
2977 | if (r->width == 0 || r->width % hsub) { |
||
5271 | serge | 2978 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
3031 | serge | 2979 | return -EINVAL; |
2980 | } |
||
2981 | |||
2982 | if (r->height == 0 || r->height % vsub) { |
||
2983 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
||
2984 | return -EINVAL; |
||
2985 | } |
||
2986 | |||
2987 | for (i = 0; i < num_planes; i++) { |
||
2988 | unsigned int width = r->width / (i != 0 ? hsub : 1); |
||
3192 | Serge | 2989 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2990 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); |
||
3031 | serge | 2991 | |
2992 | if (!r->handles[i]) { |
||
2993 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
||
2994 | return -EINVAL; |
||
2995 | } |
||
2996 | |||
3192 | Serge | 2997 | if ((uint64_t) width * cpp > UINT_MAX) |
2998 | return -ERANGE; |
||
2999 | |||
3000 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) |
||
3001 | return -ERANGE; |
||
3002 | |||
3003 | if (r->pitches[i] < width * cpp) { |
||
3031 | serge | 3004 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
3005 | return -EINVAL; |
||
3006 | } |
||
3007 | } |
||
3008 | |||
3009 | return 0; |
||
3010 | } |
||
3011 | |||
5060 | serge | 3012 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
3013 | struct drm_mode_fb_cmd2 *r, |
||
3014 | struct drm_file *file_priv) |
||
3031 | serge | 3015 | { |
3016 | struct drm_mode_config *config = &dev->mode_config; |
||
3017 | struct drm_framebuffer *fb; |
||
3018 | int ret; |
||
3019 | |||
3192 | Serge | 3020 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
3021 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
||
5060 | serge | 3022 | return ERR_PTR(-EINVAL); |
3192 | Serge | 3023 | } |
3024 | |||
1123 | serge | 3025 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
3031 | serge | 3026 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
3027 | r->width, config->min_width, config->max_width); |
||
5060 | serge | 3028 | return ERR_PTR(-EINVAL); |
1123 | serge | 3029 | } |
3030 | if ((config->min_height > r->height) || (r->height > config->max_height)) { |
||
3031 | serge | 3031 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
3032 | r->height, config->min_height, config->max_height); |
||
5060 | serge | 3033 | return ERR_PTR(-EINVAL); |
1123 | serge | 3034 | } |
3035 | |||
3031 | serge | 3036 | ret = framebuffer_check(r); |
3037 | if (ret) |
||
5060 | serge | 3038 | return ERR_PTR(ret); |
3031 | serge | 3039 | |
1123 | serge | 3040 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
1963 | serge | 3041 | if (IS_ERR(fb)) { |
3031 | serge | 3042 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
5060 | serge | 3043 | return fb; |
1123 | serge | 3044 | } |
3045 | |||
3480 | Serge | 3046 | mutex_lock(&file_priv->fbs_lock); |
1123 | serge | 3047 | r->fb_id = fb->base.id; |
3048 | list_add(&fb->filp_head, &file_priv->fbs); |
||
1963 | serge | 3049 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
3480 | Serge | 3050 | mutex_unlock(&file_priv->fbs_lock); |
1123 | serge | 3051 | |
5060 | serge | 3052 | return fb; |
3053 | } |
||
3480 | Serge | 3054 | |
5060 | serge | 3055 | /** |
3056 | * drm_mode_addfb2 - add an FB to the graphics configuration |
||
3057 | * @dev: drm device for the ioctl |
||
3058 | * @data: data pointer for the ioctl |
||
3059 | * @file_priv: drm file for the ioctl call |
||
3060 | * |
||
3061 | * Add a new FB to the specified CRTC, given a user request with format. This is |
||
3062 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers |
||
3063 | * and uses fourcc codes as pixel format specifiers. |
||
3064 | * |
||
3065 | * Called by the user via ioctl. |
||
3066 | * |
||
3067 | * Returns: |
||
5271 | serge | 3068 | * Zero on success, negative errno on failure. |
5060 | serge | 3069 | */ |
3070 | int drm_mode_addfb2(struct drm_device *dev, |
||
3071 | void *data, struct drm_file *file_priv) |
||
3072 | { |
||
3073 | struct drm_framebuffer *fb; |
||
3074 | |||
3075 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
3076 | return -EINVAL; |
||
3077 | |||
3078 | fb = add_framebuffer_internal(dev, data, file_priv); |
||
3079 | if (IS_ERR(fb)) |
||
3080 | return PTR_ERR(fb); |
||
3081 | |||
3082 | return 0; |
||
1123 | serge | 3083 | } |
3084 | |||
3085 | /** |
||
3086 | * drm_mode_rmfb - remove an FB from the configuration |
||
3480 | Serge | 3087 | * @dev: drm device for the ioctl |
3088 | * @data: data pointer for the ioctl |
||
3089 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3090 | * |
3091 | * Remove the FB specified by the user. |
||
3092 | * |
||
3093 | * Called by the user via ioctl. |
||
3094 | * |
||
5060 | serge | 3095 | * Returns: |
5271 | serge | 3096 | * Zero on success, negative errno on failure. |
1123 | serge | 3097 | */ |
3098 | int drm_mode_rmfb(struct drm_device *dev, |
||
3099 | void *data, struct drm_file *file_priv) |
||
3100 | { |
||
3101 | struct drm_framebuffer *fb = NULL; |
||
3102 | struct drm_framebuffer *fbl = NULL; |
||
3103 | uint32_t *id = data; |
||
3104 | int found = 0; |
||
3105 | |||
1963 | serge | 3106 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3107 | return -EINVAL; |
||
3108 | |||
3480 | Serge | 3109 | mutex_lock(&file_priv->fbs_lock); |
3110 | mutex_lock(&dev->mode_config.fb_lock); |
||
3111 | fb = __drm_framebuffer_lookup(dev, *id); |
||
3112 | if (!fb) |
||
3113 | goto fail_lookup; |
||
1123 | serge | 3114 | |
3115 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
||
3116 | if (fb == fbl) |
||
3117 | found = 1; |
||
3480 | Serge | 3118 | if (!found) |
3119 | goto fail_lookup; |
||
1123 | serge | 3120 | |
3480 | Serge | 3121 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ |
3122 | __drm_framebuffer_unregister(dev, fb); |
||
1123 | serge | 3123 | |
3480 | Serge | 3124 | list_del_init(&fb->filp_head); |
3125 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3126 | mutex_unlock(&file_priv->fbs_lock); |
||
3127 | |||
3031 | serge | 3128 | drm_framebuffer_remove(fb); |
1123 | serge | 3129 | |
3480 | Serge | 3130 | return 0; |
3131 | |||
3132 | fail_lookup: |
||
3133 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3134 | mutex_unlock(&file_priv->fbs_lock); |
||
3135 | |||
4560 | Serge | 3136 | return -ENOENT; |
1123 | serge | 3137 | } |
3138 | |||
3139 | /** |
||
3140 | * drm_mode_getfb - get FB info |
||
3480 | Serge | 3141 | * @dev: drm device for the ioctl |
3142 | * @data: data pointer for the ioctl |
||
3143 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3144 | * |
3145 | * Lookup the FB given its ID and return info about it. |
||
3146 | * |
||
3147 | * Called by the user via ioctl. |
||
3148 | * |
||
5060 | serge | 3149 | * Returns: |
5271 | serge | 3150 | * Zero on success, negative errno on failure. |
1123 | serge | 3151 | */ |
3152 | int drm_mode_getfb(struct drm_device *dev, |
||
3153 | void *data, struct drm_file *file_priv) |
||
3154 | { |
||
3155 | struct drm_mode_fb_cmd *r = data; |
||
3156 | struct drm_framebuffer *fb; |
||
3480 | Serge | 3157 | int ret; |
1123 | serge | 3158 | |
1963 | serge | 3159 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3160 | return -EINVAL; |
||
3161 | |||
3480 | Serge | 3162 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3163 | if (!fb) |
||
4560 | Serge | 3164 | return -ENOENT; |
1123 | serge | 3165 | |
3166 | r->height = fb->height; |
||
3167 | r->width = fb->width; |
||
3168 | r->depth = fb->depth; |
||
3169 | r->bpp = fb->bits_per_pixel; |
||
3031 | serge | 3170 | r->pitch = fb->pitches[0]; |
4104 | Serge | 3171 | if (fb->funcs->create_handle) { |
5271 | serge | 3172 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
3173 | drm_is_control_client(file_priv)) { |
||
4104 | Serge | 3174 | ret = fb->funcs->create_handle(fb, file_priv, |
3175 | &r->handle); |
||
3176 | } else { |
||
3177 | /* GET_FB() is an unprivileged ioctl so we must not |
||
3178 | * return a buffer-handle to non-master processes! For |
||
3179 | * backwards-compatibility reasons, we cannot make |
||
3180 | * GET_FB() privileged, so just return an invalid handle |
||
3181 | * for non-masters. */ |
||
3182 | r->handle = 0; |
||
3183 | ret = 0; |
||
3184 | } |
||
3185 | } else { |
||
3480 | Serge | 3186 | ret = -ENODEV; |
4104 | Serge | 3187 | } |
1123 | serge | 3188 | |
3480 | Serge | 3189 | drm_framebuffer_unreference(fb); |
3190 | |||
1123 | serge | 3191 | return ret; |
3192 | } |
||
3193 | |||
5060 | serge | 3194 | /** |
3195 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB |
||
3196 | * @dev: drm device for the ioctl |
||
3197 | * @data: data pointer for the ioctl |
||
3198 | * @file_priv: drm file for the ioctl call |
||
3199 | * |
||
3200 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip |
||
3201 | * rectangle list. Generic userspace which does frontbuffer rendering must call |
||
3202 | * this ioctl to flush out the changes on manual-update display outputs, e.g. |
||
3203 | * usb display-link, mipi manual update panels or edp panel self refresh modes. |
||
3204 | * |
||
3205 | * Modesetting drivers which always update the frontbuffer do not need to |
||
3206 | * implement the corresponding ->dirty framebuffer callback. |
||
3207 | * |
||
3208 | * Called by the user via ioctl. |
||
3209 | * |
||
3210 | * Returns: |
||
5271 | serge | 3211 | * Zero on success, negative errno on failure. |
5060 | serge | 3212 | */ |
1412 | serge | 3213 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3214 | void *data, struct drm_file *file_priv) |
||
3215 | { |
||
3216 | struct drm_clip_rect __user *clips_ptr; |
||
3217 | struct drm_clip_rect *clips = NULL; |
||
3218 | struct drm_mode_fb_dirty_cmd *r = data; |
||
3219 | struct drm_framebuffer *fb; |
||
3220 | unsigned flags; |
||
3221 | int num_clips; |
||
3031 | serge | 3222 | int ret; |
1412 | serge | 3223 | |
1963 | serge | 3224 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3225 | return -EINVAL; |
||
3226 | |||
3480 | Serge | 3227 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3228 | if (!fb) |
||
4560 | Serge | 3229 | return -ENOENT; |
1412 | serge | 3230 | |
3231 | num_clips = r->num_clips; |
||
3031 | serge | 3232 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
1412 | serge | 3233 | |
3234 | if (!num_clips != !clips_ptr) { |
||
3235 | ret = -EINVAL; |
||
3236 | goto out_err1; |
||
3237 | } |
||
3238 | |||
3239 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; |
||
3240 | |||
3241 | /* If userspace annotates copy, clips must come in pairs */ |
||
3242 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { |
||
3243 | ret = -EINVAL; |
||
3244 | goto out_err1; |
||
3245 | } |
||
3246 | |||
3247 | if (num_clips && clips_ptr) { |
||
3031 | serge | 3248 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3249 | ret = -EINVAL; |
||
3250 | goto out_err1; |
||
3251 | } |
||
1412 | serge | 3252 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3253 | if (!clips) { |
||
3254 | ret = -ENOMEM; |
||
3255 | goto out_err1; |
||
3256 | } |
||
3257 | |||
3258 | ret = copy_from_user(clips, clips_ptr, |
||
3259 | num_clips * sizeof(*clips)); |
||
1963 | serge | 3260 | if (ret) { |
3261 | ret = -EFAULT; |
||
1412 | serge | 3262 | goto out_err2; |
3263 | } |
||
1963 | serge | 3264 | } |
1412 | serge | 3265 | |
3266 | if (fb->funcs->dirty) { |
||
1963 | serge | 3267 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3268 | clips, num_clips); |
||
1412 | serge | 3269 | } else { |
3270 | ret = -ENOSYS; |
||
3271 | } |
||
3272 | |||
3273 | out_err2: |
||
3274 | kfree(clips); |
||
3275 | out_err1: |
||
3480 | Serge | 3276 | drm_framebuffer_unreference(fb); |
3277 | |||
1412 | serge | 3278 | return ret; |
3279 | } |
||
3280 | |||
3281 | |||
1123 | serge | 3282 | /** |
3283 | * drm_fb_release - remove and free the FBs on this file |
||
3480 | Serge | 3284 | * @priv: drm file for the ioctl |
1123 | serge | 3285 | * |
3286 | * Destroy all the FBs associated with @filp. |
||
3287 | * |
||
3288 | * Called by the user via ioctl. |
||
3289 | * |
||
5060 | serge | 3290 | * Returns: |
5271 | serge | 3291 | * Zero on success, negative errno on failure. |
1123 | serge | 3292 | */ |
3293 | void drm_fb_release(struct drm_file *priv) |
||
3294 | { |
||
3295 | struct drm_device *dev = priv->minor->dev; |
||
3296 | struct drm_framebuffer *fb, *tfb; |
||
3297 | |||
5271 | serge | 3298 | /* |
3299 | * When the file gets released that means no one else can access the fb |
||
3300 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
||
3301 | * avoid upsetting lockdep since the universal cursor code adds a |
||
3302 | * framebuffer while holding mutex locks. |
||
3303 | * |
||
3304 | * Note that a real deadlock between fpriv->fbs_lock and the modeset |
||
3305 | * locks is impossible here since no one else but this function can get |
||
3306 | * at it any more. |
||
3307 | */ |
||
1123 | serge | 3308 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
3480 | Serge | 3309 | |
3310 | mutex_lock(&dev->mode_config.fb_lock); |
||
3311 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ |
||
3312 | __drm_framebuffer_unregister(dev, fb); |
||
3313 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3314 | |||
3315 | list_del_init(&fb->filp_head); |
||
3316 | |||
3317 | /* This will also drop the fpriv->fbs reference. */ |
||
3031 | serge | 3318 | drm_framebuffer_remove(fb); |
1123 | serge | 3319 | } |
3320 | } |
||
3321 | #endif |
||
3322 | |||
3323 | |||
5060 | serge | 3324 | /** |
3325 | * drm_property_create - create a new property type |
||
3326 | * @dev: drm device |
||
3327 | * @flags: flags specifying the property type |
||
3328 | * @name: name of the property |
||
3329 | * @num_values: number of pre-defined values |
||
3330 | * |
||
3331 | * This creates a new generic drm property which can then be attached to a drm |
||
3332 | * object with drm_object_attach_property. The returned property object must be |
||
3333 | * freed with drm_property_destroy. |
||
3334 | * |
||
5271 | serge | 3335 | * Note that the DRM core keeps a per-device list of properties and that, if |
3336 | * drm_mode_config_cleanup() is called, it will destroy all properties created |
||
3337 | * by the driver. |
||
3338 | * |
||
5060 | serge | 3339 | * Returns: |
3340 | * A pointer to the newly created property on success, NULL on failure. |
||
3341 | */ |
||
1123 | serge | 3342 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3343 | const char *name, int num_values) |
||
3344 | { |
||
3345 | struct drm_property *property = NULL; |
||
3031 | serge | 3346 | int ret; |
1123 | serge | 3347 | |
3348 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
||
3349 | if (!property) |
||
3350 | return NULL; |
||
3351 | |||
5060 | serge | 3352 | property->dev = dev; |
3353 | |||
1123 | serge | 3354 | if (num_values) { |
3355 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); |
||
3356 | if (!property->values) |
||
3357 | goto fail; |
||
3358 | } |
||
3359 | |||
3031 | serge | 3360 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3361 | if (ret) |
||
3362 | goto fail; |
||
3363 | |||
1123 | serge | 3364 | property->flags = flags; |
3365 | property->num_values = num_values; |
||
5271 | serge | 3366 | INIT_LIST_HEAD(&property->enum_list); |
1123 | serge | 3367 | |
3031 | serge | 3368 | if (name) { |
1123 | serge | 3369 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
3031 | serge | 3370 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3371 | } |
||
1123 | serge | 3372 | |
3373 | list_add_tail(&property->head, &dev->mode_config.property_list); |
||
5060 | serge | 3374 | |
3375 | WARN_ON(!drm_property_type_valid(property)); |
||
3376 | |||
1123 | serge | 3377 | return property; |
3378 | fail: |
||
3031 | serge | 3379 | kfree(property->values); |
1123 | serge | 3380 | kfree(property); |
3381 | return NULL; |
||
3382 | } |
||
3383 | EXPORT_SYMBOL(drm_property_create); |
||
3384 | |||
5060 | serge | 3385 | /** |
3386 | * drm_property_create_enum - create a new enumeration property type |
||
3387 | * @dev: drm device |
||
3388 | * @flags: flags specifying the property type |
||
3389 | * @name: name of the property |
||
3390 | * @props: enumeration lists with property values |
||
3391 | * @num_values: number of pre-defined values |
||
3392 | * |
||
3393 | * This creates a new generic drm property which can then be attached to a drm |
||
3394 | * object with drm_object_attach_property. The returned property object must be |
||
3395 | * freed with drm_property_destroy. |
||
3396 | * |
||
3397 | * Userspace is only allowed to set one of the predefined values for enumeration |
||
3398 | * properties. |
||
3399 | * |
||
3400 | * Returns: |
||
3401 | * A pointer to the newly created property on success, NULL on failure. |
||
3402 | */ |
||
3031 | serge | 3403 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3404 | const char *name, |
||
3405 | const struct drm_prop_enum_list *props, |
||
3406 | int num_values) |
||
3407 | { |
||
3408 | struct drm_property *property; |
||
3409 | int i, ret; |
||
3410 | |||
3411 | flags |= DRM_MODE_PROP_ENUM; |
||
3412 | |||
3413 | property = drm_property_create(dev, flags, name, num_values); |
||
3414 | if (!property) |
||
3415 | return NULL; |
||
3416 | |||
3417 | for (i = 0; i < num_values; i++) { |
||
3418 | ret = drm_property_add_enum(property, i, |
||
3419 | props[i].type, |
||
3420 | props[i].name); |
||
3421 | if (ret) { |
||
3422 | drm_property_destroy(dev, property); |
||
3423 | return NULL; |
||
3424 | } |
||
3425 | } |
||
3426 | |||
3427 | return property; |
||
3428 | } |
||
3429 | EXPORT_SYMBOL(drm_property_create_enum); |
||
3430 | |||
5060 | serge | 3431 | /** |
3432 | * drm_property_create_bitmask - create a new bitmask property type |
||
3433 | * @dev: drm device |
||
3434 | * @flags: flags specifying the property type |
||
3435 | * @name: name of the property |
||
3436 | * @props: enumeration lists with property bitflags |
||
5271 | serge | 3437 | * @num_props: size of the @props array |
3438 | * @supported_bits: bitmask of all supported enumeration values |
||
5060 | serge | 3439 | * |
5271 | serge | 3440 | * This creates a new bitmask drm property which can then be attached to a drm |
5060 | serge | 3441 | * object with drm_object_attach_property. The returned property object must be |
3442 | * freed with drm_property_destroy. |
||
3443 | * |
||
3444 | * Compared to plain enumeration properties userspace is allowed to set any |
||
3445 | * or'ed together combination of the predefined property bitflag values |
||
3446 | * |
||
3447 | * Returns: |
||
3448 | * A pointer to the newly created property on success, NULL on failure. |
||
3449 | */ |
||
3031 | serge | 3450 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3451 | int flags, const char *name, |
||
3452 | const struct drm_prop_enum_list *props, |
||
5060 | serge | 3453 | int num_props, |
3454 | uint64_t supported_bits) |
||
3031 | serge | 3455 | { |
3456 | struct drm_property *property; |
||
5060 | serge | 3457 | int i, ret, index = 0; |
3458 | int num_values = hweight64(supported_bits); |
||
3031 | serge | 3459 | |
3460 | flags |= DRM_MODE_PROP_BITMASK; |
||
3461 | |||
3462 | property = drm_property_create(dev, flags, name, num_values); |
||
3463 | if (!property) |
||
3464 | return NULL; |
||
5060 | serge | 3465 | for (i = 0; i < num_props; i++) { |
3466 | if (!(supported_bits & (1ULL << props[i].type))) |
||
3467 | continue; |
||
3031 | serge | 3468 | |
5060 | serge | 3469 | if (WARN_ON(index >= num_values)) { |
3470 | drm_property_destroy(dev, property); |
||
3471 | return NULL; |
||
3472 | } |
||
3473 | |||
3474 | ret = drm_property_add_enum(property, index++, |
||
3031 | serge | 3475 | props[i].type, |
3476 | props[i].name); |
||
3477 | if (ret) { |
||
3478 | drm_property_destroy(dev, property); |
||
3479 | return NULL; |
||
3480 | } |
||
3481 | } |
||
3482 | |||
3483 | return property; |
||
3484 | } |
||
3485 | EXPORT_SYMBOL(drm_property_create_bitmask); |
||
3486 | |||
5060 | serge | 3487 | static struct drm_property *property_create_range(struct drm_device *dev, |
3488 | int flags, const char *name, |
||
3031 | serge | 3489 | uint64_t min, uint64_t max) |
3490 | { |
||
3491 | struct drm_property *property; |
||
3492 | |||
3493 | property = drm_property_create(dev, flags, name, 2); |
||
3494 | if (!property) |
||
3495 | return NULL; |
||
3496 | |||
3497 | property->values[0] = min; |
||
3498 | property->values[1] = max; |
||
3499 | |||
3500 | return property; |
||
3501 | } |
||
5060 | serge | 3502 | |
3503 | /** |
||
3504 | * drm_property_create_range - create a new ranged property type |
||
3505 | * @dev: drm device |
||
3506 | * @flags: flags specifying the property type |
||
3507 | * @name: name of the property |
||
3508 | * @min: minimum value of the property |
||
3509 | * @max: maximum value of the property |
||
3510 | * |
||
3511 | * This creates a new generic drm property which can then be attached to a drm |
||
3512 | * object with drm_object_attach_property. The returned property object must be |
||
3513 | * freed with drm_property_destroy. |
||
3514 | * |
||
5271 | serge | 3515 | * Userspace is allowed to set any integer value in the (min, max) range |
5060 | serge | 3516 | * inclusive. |
3517 | * |
||
3518 | * Returns: |
||
3519 | * A pointer to the newly created property on success, NULL on failure. |
||
3520 | */ |
||
3521 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
||
3522 | const char *name, |
||
3523 | uint64_t min, uint64_t max) |
||
3524 | { |
||
3525 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
||
3526 | name, min, max); |
||
3527 | } |
||
3031 | serge | 3528 | EXPORT_SYMBOL(drm_property_create_range); |
3529 | |||
5060 | serge | 3530 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3531 | int flags, const char *name, |
||
3532 | int64_t min, int64_t max) |
||
3533 | { |
||
3534 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, |
||
3535 | name, I642U64(min), I642U64(max)); |
||
3536 | } |
||
3537 | EXPORT_SYMBOL(drm_property_create_signed_range); |
||
3538 | |||
3539 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
||
3540 | int flags, const char *name, uint32_t type) |
||
3541 | { |
||
3542 | struct drm_property *property; |
||
3543 | |||
3544 | flags |= DRM_MODE_PROP_OBJECT; |
||
3545 | |||
3546 | property = drm_property_create(dev, flags, name, 1); |
||
3547 | if (!property) |
||
3548 | return NULL; |
||
3549 | |||
3550 | property->values[0] = type; |
||
3551 | |||
3552 | return property; |
||
3553 | } |
||
3554 | EXPORT_SYMBOL(drm_property_create_object); |
||
3555 | |||
3556 | /** |
||
3557 | * drm_property_add_enum - add a possible value to an enumeration property |
||
3558 | * @property: enumeration property to change |
||
3559 | * @index: index of the new enumeration |
||
3560 | * @value: value of the new enumeration |
||
3561 | * @name: symbolic name of the new enumeration |
||
3562 | * |
||
3563 | * This functions adds enumerations to a property. |
||
3564 | * |
||
3565 | * It's use is deprecated, drivers should use one of the more specific helpers |
||
3566 | * to directly create the property with all enumerations already attached. |
||
3567 | * |
||
3568 | * Returns: |
||
3569 | * Zero on success, error code on failure. |
||
3570 | */ |
||
1123 | serge | 3571 | int drm_property_add_enum(struct drm_property *property, int index, |
3572 | uint64_t value, const char *name) |
||
3573 | { |
||
3574 | struct drm_property_enum *prop_enum; |
||
3575 | |||
5060 | serge | 3576 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3577 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) |
||
1123 | serge | 3578 | return -EINVAL; |
3579 | |||
3031 | serge | 3580 | /* |
3581 | * Bitmask enum properties have the additional constraint of values |
||
3582 | * from 0 to 63 |
||
3583 | */ |
||
5060 | serge | 3584 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3585 | (value > 63)) |
||
3031 | serge | 3586 | return -EINVAL; |
3587 | |||
5271 | serge | 3588 | if (!list_empty(&property->enum_list)) { |
3589 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
||
1123 | serge | 3590 | if (prop_enum->value == value) { |
3591 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3592 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3593 | return 0; |
||
3594 | } |
||
3595 | } |
||
3596 | } |
||
3597 | |||
3598 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
||
3599 | if (!prop_enum) |
||
3600 | return -ENOMEM; |
||
3601 | |||
3602 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3603 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3604 | prop_enum->value = value; |
||
3605 | |||
3606 | property->values[index] = value; |
||
5271 | serge | 3607 | list_add_tail(&prop_enum->head, &property->enum_list); |
1123 | serge | 3608 | return 0; |
3609 | } |
||
3610 | EXPORT_SYMBOL(drm_property_add_enum); |
||
3611 | |||
5060 | serge | 3612 | /** |
3613 | * drm_property_destroy - destroy a drm property |
||
3614 | * @dev: drm device |
||
3615 | * @property: property to destry |
||
3616 | * |
||
3617 | * This function frees a property including any attached resources like |
||
3618 | * enumeration values. |
||
3619 | */ |
||
1123 | serge | 3620 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3621 | { |
||
3622 | struct drm_property_enum *prop_enum, *pt; |
||
3623 | |||
5271 | serge | 3624 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
1123 | serge | 3625 | list_del(&prop_enum->head); |
3626 | kfree(prop_enum); |
||
3627 | } |
||
3628 | |||
3629 | if (property->num_values) |
||
3630 | kfree(property->values); |
||
3631 | drm_mode_object_put(dev, &property->base); |
||
3632 | list_del(&property->head); |
||
3633 | kfree(property); |
||
3634 | } |
||
3635 | EXPORT_SYMBOL(drm_property_destroy); |
||
3636 | |||
5060 | serge | 3637 | /** |
3638 | * drm_object_attach_property - attach a property to a modeset object |
||
3639 | * @obj: drm modeset object |
||
3640 | * @property: property to attach |
||
3641 | * @init_val: initial value of the property |
||
3642 | * |
||
3643 | * This attaches the given property to the modeset object with the given initial |
||
3644 | * value. Currently this function cannot fail since the properties are stored in |
||
3645 | * a statically sized array. |
||
3646 | */ |
||
3031 | serge | 3647 | void drm_object_attach_property(struct drm_mode_object *obj, |
3648 | struct drm_property *property, |
||
3649 | uint64_t init_val) |
||
3650 | { |
||
3651 | int count = obj->properties->count; |
||
3652 | |||
3653 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
||
3654 | WARN(1, "Failed to attach object property (type: 0x%x). Please " |
||
3655 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " |
||
3656 | "you see this message on the same object type.\n", |
||
3657 | obj->type); |
||
3658 | return; |
||
3659 | } |
||
3660 | |||
3661 | obj->properties->ids[count] = property->base.id; |
||
3662 | obj->properties->values[count] = init_val; |
||
3663 | obj->properties->count++; |
||
3664 | } |
||
3665 | EXPORT_SYMBOL(drm_object_attach_property); |
||
3666 | |||
5060 | serge | 3667 | /** |
3668 | * drm_object_property_set_value - set the value of a property |
||
3669 | * @obj: drm mode object to set property value for |
||
3670 | * @property: property to set |
||
3671 | * @val: value the property should be set to |
||
3672 | * |
||
3673 | * This functions sets a given property on a given object. This function only |
||
3674 | * changes the software state of the property, it does not call into the |
||
3675 | * driver's ->set_property callback. |
||
3676 | * |
||
3677 | * Returns: |
||
3678 | * Zero on success, error code on failure. |
||
3679 | */ |
||
3031 | serge | 3680 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3681 | struct drm_property *property, uint64_t val) |
||
3682 | { |
||
1123 | serge | 3683 | int i; |
3684 | |||
3031 | serge | 3685 | for (i = 0; i < obj->properties->count; i++) { |
3686 | if (obj->properties->ids[i] == property->base.id) { |
||
3687 | obj->properties->values[i] = val; |
||
3688 | return 0; |
||
1123 | serge | 3689 | } |
3690 | } |
||
3691 | |||
3692 | return -EINVAL; |
||
3693 | } |
||
3031 | serge | 3694 | EXPORT_SYMBOL(drm_object_property_set_value); |
1123 | serge | 3695 | |
5060 | serge | 3696 | /** |
3697 | * drm_object_property_get_value - retrieve the value of a property |
||
3698 | * @obj: drm mode object to get property value from |
||
3699 | * @property: property to retrieve |
||
3700 | * @val: storage for the property value |
||
3701 | * |
||
3702 | * This function retrieves the softare state of the given property for the given |
||
3703 | * property. Since there is no driver callback to retrieve the current property |
||
3704 | * value this might be out of sync with the hardware, depending upon the driver |
||
3705 | * and property. |
||
3706 | * |
||
3707 | * Returns: |
||
3708 | * Zero on success, error code on failure. |
||
3709 | */ |
||
3031 | serge | 3710 | int drm_object_property_get_value(struct drm_mode_object *obj, |
1123 | serge | 3711 | struct drm_property *property, uint64_t *val) |
3712 | { |
||
3713 | int i; |
||
3714 | |||
3031 | serge | 3715 | for (i = 0; i < obj->properties->count; i++) { |
3716 | if (obj->properties->ids[i] == property->base.id) { |
||
3717 | *val = obj->properties->values[i]; |
||
3718 | return 0; |
||
1123 | serge | 3719 | } |
3720 | } |
||
3721 | |||
3722 | return -EINVAL; |
||
3723 | } |
||
3031 | serge | 3724 | EXPORT_SYMBOL(drm_object_property_get_value); |
1123 | serge | 3725 | |
3726 | #if 0 |
||
5060 | serge | 3727 | /** |
5271 | serge | 3728 | * drm_mode_getproperty_ioctl - get the property metadata |
5060 | serge | 3729 | * @dev: DRM device |
3730 | * @data: ioctl data |
||
3731 | * @file_priv: DRM file info |
||
3732 | * |
||
5271 | serge | 3733 | * This function retrieves the metadata for a given property, like the different |
3734 | * possible values for an enum property or the limits for a range property. |
||
5060 | serge | 3735 | * |
5271 | serge | 3736 | * Blob properties are special |
3737 | * |
||
5060 | serge | 3738 | * Called by the user via ioctl. |
3739 | * |
||
3740 | * Returns: |
||
5271 | serge | 3741 | * Zero on success, negative errno on failure. |
5060 | serge | 3742 | */ |
1123 | serge | 3743 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3744 | void *data, struct drm_file *file_priv) |
||
3745 | { |
||
3746 | struct drm_mode_get_property *out_resp = data; |
||
3747 | struct drm_property *property; |
||
3748 | int enum_count = 0; |
||
3749 | int value_count = 0; |
||
3750 | int ret = 0, i; |
||
3751 | int copied; |
||
3752 | struct drm_property_enum *prop_enum; |
||
3753 | struct drm_mode_property_enum __user *enum_ptr; |
||
3754 | uint64_t __user *values_ptr; |
||
3755 | |||
1963 | serge | 3756 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3757 | return -EINVAL; |
||
3758 | |||
3480 | Serge | 3759 | drm_modeset_lock_all(dev); |
5060 | serge | 3760 | property = drm_property_find(dev, out_resp->prop_id); |
3761 | if (!property) { |
||
4560 | Serge | 3762 | ret = -ENOENT; |
1123 | serge | 3763 | goto done; |
3764 | } |
||
3765 | |||
5060 | serge | 3766 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3767 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
5271 | serge | 3768 | list_for_each_entry(prop_enum, &property->enum_list, head) |
1123 | serge | 3769 | enum_count++; |
3770 | } |
||
3771 | |||
3772 | value_count = property->num_values; |
||
3773 | |||
3774 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
||
3775 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
||
3776 | out_resp->flags = property->flags; |
||
3777 | |||
3778 | if ((out_resp->count_values >= value_count) && value_count) { |
||
3031 | serge | 3779 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
1123 | serge | 3780 | for (i = 0; i < value_count; i++) { |
3781 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
||
3782 | ret = -EFAULT; |
||
3783 | goto done; |
||
3784 | } |
||
3785 | } |
||
3786 | } |
||
3787 | out_resp->count_values = value_count; |
||
3788 | |||
5060 | serge | 3789 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3790 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
1123 | serge | 3791 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3792 | copied = 0; |
||
3031 | serge | 3793 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
5271 | serge | 3794 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
1123 | serge | 3795 | |
3796 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
||
3797 | ret = -EFAULT; |
||
3798 | goto done; |
||
3799 | } |
||
3800 | |||
3801 | if (copy_to_user(&enum_ptr[copied].name, |
||
3802 | &prop_enum->name, DRM_PROP_NAME_LEN)) { |
||
3803 | ret = -EFAULT; |
||
3804 | goto done; |
||
3805 | } |
||
3806 | copied++; |
||
3807 | } |
||
3808 | } |
||
3809 | out_resp->count_enum_blobs = enum_count; |
||
3810 | } |
||
3811 | |||
5271 | serge | 3812 | /* |
3813 | * NOTE: The idea seems to have been to use this to read all the blob |
||
3814 | * property values. But nothing ever added them to the corresponding |
||
3815 | * list, userspace always used the special-purpose get_blob ioctl to |
||
3816 | * read the value for a blob property. It also doesn't make a lot of |
||
3817 | * sense to return values here when everything else is just metadata for |
||
3818 | * the property itself. |
||
3819 | */ |
||
3820 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
||
3821 | out_resp->count_enum_blobs = 0; |
||
1123 | serge | 3822 | done: |
3480 | Serge | 3823 | drm_modeset_unlock_all(dev); |
1123 | serge | 3824 | return ret; |
3825 | } |
||
3826 | #endif |
||
3827 | |||
5271 | serge | 3828 | static struct drm_property_blob * |
3829 | drm_property_create_blob(struct drm_device *dev, size_t length, |
||
3830 | const void *data) |
||
1123 | serge | 3831 | { |
3832 | struct drm_property_blob *blob; |
||
3031 | serge | 3833 | int ret; |
1123 | serge | 3834 | |
3835 | if (!length || !data) |
||
3836 | return NULL; |
||
3837 | |||
3838 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
||
3839 | if (!blob) |
||
3840 | return NULL; |
||
3841 | |||
3031 | serge | 3842 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3843 | if (ret) { |
||
3844 | kfree(blob); |
||
3845 | return NULL; |
||
3846 | } |
||
3847 | |||
1123 | serge | 3848 | blob->length = length; |
3849 | |||
3850 | memcpy(blob->data, data, length); |
||
3851 | |||
3852 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
||
3853 | return blob; |
||
3854 | } |
||
3855 | |||
3856 | static void drm_property_destroy_blob(struct drm_device *dev, |
||
3857 | struct drm_property_blob *blob) |
||
3858 | { |
||
3859 | drm_mode_object_put(dev, &blob->base); |
||
3860 | list_del(&blob->head); |
||
3861 | kfree(blob); |
||
3862 | } |
||
3863 | |||
3864 | #if 0 |
||
5060 | serge | 3865 | /** |
3866 | * drm_mode_getblob_ioctl - get the contents of a blob property value |
||
3867 | * @dev: DRM device |
||
3868 | * @data: ioctl data |
||
3869 | * @file_priv: DRM file info |
||
3870 | * |
||
3871 | * This function retrieves the contents of a blob property. The value stored in |
||
3872 | * an object's blob property is just a normal modeset object id. |
||
3873 | * |
||
3874 | * Called by the user via ioctl. |
||
3875 | * |
||
3876 | * Returns: |
||
5271 | serge | 3877 | * Zero on success, negative errno on failure. |
5060 | serge | 3878 | */ |
1123 | serge | 3879 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3880 | void *data, struct drm_file *file_priv) |
||
3881 | { |
||
3882 | struct drm_mode_get_blob *out_resp = data; |
||
3883 | struct drm_property_blob *blob; |
||
3884 | int ret = 0; |
||
3031 | serge | 3885 | void __user *blob_ptr; |
1123 | serge | 3886 | |
1963 | serge | 3887 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3888 | return -EINVAL; |
||
3889 | |||
3480 | Serge | 3890 | drm_modeset_lock_all(dev); |
5060 | serge | 3891 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
3892 | if (!blob) { |
||
4560 | Serge | 3893 | ret = -ENOENT; |
1123 | serge | 3894 | goto done; |
3895 | } |
||
3896 | |||
3897 | if (out_resp->length == blob->length) { |
||
3031 | serge | 3898 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
1123 | serge | 3899 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3900 | ret = -EFAULT; |
||
3901 | goto done; |
||
3902 | } |
||
3903 | } |
||
3904 | out_resp->length = blob->length; |
||
3905 | |||
3906 | done: |
||
3480 | Serge | 3907 | drm_modeset_unlock_all(dev); |
1123 | serge | 3908 | return ret; |
3909 | } |
||
3910 | #endif |
||
3911 | |||
5271 | serge | 3912 | /** |
3913 | * drm_mode_connector_set_path_property - set tile property on connector |
||
3914 | * @connector: connector to set property on. |
||
3915 | * @path: path to use for property. |
||
3916 | * |
||
3917 | * This creates a property to expose to userspace to specify a |
||
3918 | * connector path. This is mainly used for DisplayPort MST where |
||
3919 | * connectors have a topology and we want to allow userspace to give |
||
3920 | * them more meaningful names. |
||
3921 | * |
||
3922 | * Returns: |
||
3923 | * Zero on success, negative errno on failure. |
||
3924 | */ |
||
5060 | serge | 3925 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
5271 | serge | 3926 | const char *path) |
5060 | serge | 3927 | { |
3928 | struct drm_device *dev = connector->dev; |
||
5271 | serge | 3929 | size_t size = strlen(path) + 1; |
3930 | int ret; |
||
5060 | serge | 3931 | |
3932 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, |
||
3933 | size, path); |
||
3934 | if (!connector->path_blob_ptr) |
||
3935 | return -EINVAL; |
||
3936 | |||
3937 | ret = drm_object_property_set_value(&connector->base, |
||
3938 | dev->mode_config.path_property, |
||
3939 | connector->path_blob_ptr->base.id); |
||
3940 | return ret; |
||
3941 | } |
||
3942 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); |
||
3943 | |||
3944 | /** |
||
5271 | serge | 3945 | * drm_mode_connector_set_tile_property - set tile property on connector |
3946 | * @connector: connector to set property on. |
||
3947 | * |
||
3948 | * This looks up the tile information for a connector, and creates a |
||
3949 | * property for userspace to parse if it exists. The property is of |
||
3950 | * the form of 8 integers using ':' as a separator. |
||
3951 | * |
||
3952 | * Returns: |
||
3953 | * Zero on success, errno on failure. |
||
3954 | */ |
||
3955 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) |
||
3956 | { |
||
3957 | struct drm_device *dev = connector->dev; |
||
3958 | int ret, size; |
||
3959 | char tile[256]; |
||
3960 | |||
3961 | if (connector->tile_blob_ptr) |
||
3962 | drm_property_destroy_blob(dev, connector->tile_blob_ptr); |
||
3963 | |||
3964 | if (!connector->has_tile) { |
||
3965 | connector->tile_blob_ptr = NULL; |
||
3966 | ret = drm_object_property_set_value(&connector->base, |
||
3967 | dev->mode_config.tile_property, 0); |
||
3968 | return ret; |
||
3969 | } |
||
3970 | |||
3971 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", |
||
3972 | connector->tile_group->id, connector->tile_is_single_monitor, |
||
3973 | connector->num_h_tile, connector->num_v_tile, |
||
3974 | connector->tile_h_loc, connector->tile_v_loc, |
||
3975 | connector->tile_h_size, connector->tile_v_size); |
||
3976 | size = strlen(tile) + 1; |
||
3977 | |||
3978 | connector->tile_blob_ptr = drm_property_create_blob(connector->dev, |
||
3979 | size, tile); |
||
3980 | if (!connector->tile_blob_ptr) |
||
3981 | return -EINVAL; |
||
3982 | |||
3983 | ret = drm_object_property_set_value(&connector->base, |
||
3984 | dev->mode_config.tile_property, |
||
3985 | connector->tile_blob_ptr->base.id); |
||
3986 | return ret; |
||
3987 | } |
||
3988 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); |
||
3989 | |||
3990 | /** |
||
5060 | serge | 3991 | * drm_mode_connector_update_edid_property - update the edid property of a connector |
3992 | * @connector: drm connector |
||
3993 | * @edid: new value of the edid property |
||
3994 | * |
||
3995 | * This function creates a new blob modeset object and assigns its id to the |
||
3996 | * connector's edid property. |
||
3997 | * |
||
3998 | * Returns: |
||
5367 | serge | 3999 | * Zero on success, negative errno on failure. |
5060 | serge | 4000 | */ |
1123 | serge | 4001 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
5271 | serge | 4002 | const struct edid *edid) |
1123 | serge | 4003 | { |
4004 | struct drm_device *dev = connector->dev; |
||
5271 | serge | 4005 | size_t size; |
4006 | int ret; |
||
1123 | serge | 4007 | |
5060 | serge | 4008 | /* ignore requests to set edid when overridden */ |
4009 | if (connector->override_edid) |
||
4010 | return 0; |
||
4011 | |||
1123 | serge | 4012 | if (connector->edid_blob_ptr) |
4013 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); |
||
4014 | |||
4015 | /* Delete edid, when there is none. */ |
||
4016 | if (!edid) { |
||
4017 | connector->edid_blob_ptr = NULL; |
||
3192 | Serge | 4018 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
1123 | serge | 4019 | return ret; |
4020 | } |
||
4021 | |||
1963 | serge | 4022 | size = EDID_LENGTH * (1 + edid->extensions); |
4023 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, |
||
4024 | size, edid); |
||
3192 | Serge | 4025 | if (!connector->edid_blob_ptr) |
4026 | return -EINVAL; |
||
1123 | serge | 4027 | |
3192 | Serge | 4028 | ret = drm_object_property_set_value(&connector->base, |
1123 | serge | 4029 | dev->mode_config.edid_property, |
4030 | connector->edid_blob_ptr->base.id); |
||
4031 | |||
4032 | return ret; |
||
4033 | } |
||
4034 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
||
4035 | |||
3031 | serge | 4036 | |
5271 | serge | 4037 | |
3031 | serge | 4038 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4039 | struct drm_property *property, |
||
4040 | uint64_t value) |
||
1123 | serge | 4041 | { |
3031 | serge | 4042 | int ret = -EINVAL; |
4043 | struct drm_connector *connector = obj_to_connector(obj); |
||
4044 | |||
4045 | /* Do DPMS ourselves */ |
||
4046 | if (property == connector->dev->mode_config.dpms_property) { |
||
4047 | if (connector->funcs->dpms) |
||
4048 | (*connector->funcs->dpms)(connector, (int)value); |
||
4049 | ret = 0; |
||
4050 | } else if (connector->funcs->set_property) |
||
4051 | ret = connector->funcs->set_property(connector, property, value); |
||
4052 | |||
4053 | /* store the property value if successful */ |
||
4054 | if (!ret) |
||
3192 | Serge | 4055 | drm_object_property_set_value(&connector->base, property, value); |
3031 | serge | 4056 | return ret; |
4057 | } |
||
4058 | |||
4059 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
||
4060 | struct drm_property *property, |
||
4061 | uint64_t value) |
||
4062 | { |
||
4063 | int ret = -EINVAL; |
||
4064 | struct drm_crtc *crtc = obj_to_crtc(obj); |
||
4065 | |||
4066 | if (crtc->funcs->set_property) |
||
4067 | ret = crtc->funcs->set_property(crtc, property, value); |
||
4068 | if (!ret) |
||
4069 | drm_object_property_set_value(obj, property, value); |
||
4070 | |||
4071 | return ret; |
||
4072 | } |
||
4073 | |||
5271 | serge | 4074 | /** |
4075 | * drm_mode_plane_set_obj_prop - set the value of a property |
||
4076 | * @plane: drm plane object to set property value for |
||
4077 | * @property: property to set |
||
4078 | * @value: value the property should be set to |
||
4079 | * |
||
4080 | * This functions sets a given property on a given plane object. This function |
||
4081 | * calls the driver's ->set_property callback and changes the software state of |
||
4082 | * the property if the callback succeeds. |
||
4083 | * |
||
4084 | * Returns: |
||
4085 | * Zero on success, error code on failure. |
||
4086 | */ |
||
4087 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, |
||
3031 | serge | 4088 | struct drm_property *property, |
4089 | uint64_t value) |
||
4090 | { |
||
4091 | int ret = -EINVAL; |
||
5271 | serge | 4092 | struct drm_mode_object *obj = &plane->base; |
3031 | serge | 4093 | |
4094 | if (plane->funcs->set_property) |
||
4095 | ret = plane->funcs->set_property(plane, property, value); |
||
4096 | if (!ret) |
||
4097 | drm_object_property_set_value(obj, property, value); |
||
4098 | |||
4099 | return ret; |
||
4100 | } |
||
5271 | serge | 4101 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
3031 | serge | 4102 | |
5271 | serge | 4103 | #if 0 |
5060 | serge | 4104 | /** |
5271 | serge | 4105 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
5060 | serge | 4106 | * @dev: DRM device |
4107 | * @data: ioctl data |
||
4108 | * @file_priv: DRM file info |
||
4109 | * |
||
4110 | * This function retrieves the current value for an object's property. Compared |
||
4111 | * to the connector specific ioctl this one is extended to also work on crtc and |
||
4112 | * plane objects. |
||
4113 | * |
||
4114 | * Called by the user via ioctl. |
||
4115 | * |
||
4116 | * Returns: |
||
5271 | serge | 4117 | * Zero on success, negative errno on failure. |
5060 | serge | 4118 | */ |
3031 | serge | 4119 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4120 | struct drm_file *file_priv) |
||
4121 | { |
||
4122 | struct drm_mode_obj_get_properties *arg = data; |
||
1123 | serge | 4123 | struct drm_mode_object *obj; |
3031 | serge | 4124 | int ret = 0; |
1123 | serge | 4125 | int i; |
3031 | serge | 4126 | int copied = 0; |
4127 | int props_count = 0; |
||
4128 | uint32_t __user *props_ptr; |
||
4129 | uint64_t __user *prop_values_ptr; |
||
1123 | serge | 4130 | |
1963 | serge | 4131 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4132 | return -EINVAL; |
||
4133 | |||
3480 | Serge | 4134 | drm_modeset_lock_all(dev); |
1123 | serge | 4135 | |
3031 | serge | 4136 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
1123 | serge | 4137 | if (!obj) { |
4560 | Serge | 4138 | ret = -ENOENT; |
1123 | serge | 4139 | goto out; |
4140 | } |
||
3031 | serge | 4141 | if (!obj->properties) { |
4142 | ret = -EINVAL; |
||
4143 | goto out; |
||
4144 | } |
||
1123 | serge | 4145 | |
3031 | serge | 4146 | props_count = obj->properties->count; |
4147 | |||
4148 | /* This ioctl is called twice, once to determine how much space is |
||
4149 | * needed, and the 2nd time to fill it. */ |
||
4150 | if ((arg->count_props >= props_count) && props_count) { |
||
4151 | copied = 0; |
||
4152 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); |
||
4153 | prop_values_ptr = (uint64_t __user *)(unsigned long) |
||
4154 | (arg->prop_values_ptr); |
||
4155 | for (i = 0; i < props_count; i++) { |
||
4156 | if (put_user(obj->properties->ids[i], |
||
4157 | props_ptr + copied)) { |
||
4158 | ret = -EFAULT; |
||
4159 | goto out; |
||
1123 | serge | 4160 | } |
3031 | serge | 4161 | if (put_user(obj->properties->values[i], |
4162 | prop_values_ptr + copied)) { |
||
4163 | ret = -EFAULT; |
||
1123 | serge | 4164 | goto out; |
4165 | } |
||
3031 | serge | 4166 | copied++; |
4167 | } |
||
4168 | } |
||
4169 | arg->count_props = props_count; |
||
4170 | out: |
||
3480 | Serge | 4171 | drm_modeset_unlock_all(dev); |
3031 | serge | 4172 | return ret; |
4173 | } |
||
1123 | serge | 4174 | |
5060 | serge | 4175 | /** |
4176 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property |
||
4177 | * @dev: DRM device |
||
4178 | * @data: ioctl data |
||
4179 | * @file_priv: DRM file info |
||
4180 | * |
||
4181 | * This function sets the current value for an object's property. It also calls |
||
4182 | * into a driver's ->set_property callback to update the hardware state. |
||
4183 | * Compared to the connector specific ioctl this one is extended to also work on |
||
4184 | * crtc and plane objects. |
||
4185 | * |
||
4186 | * Called by the user via ioctl. |
||
4187 | * |
||
4188 | * Returns: |
||
5271 | serge | 4189 | * Zero on success, negative errno on failure. |
5060 | serge | 4190 | */ |
3031 | serge | 4191 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4192 | struct drm_file *file_priv) |
||
4193 | { |
||
4194 | struct drm_mode_obj_set_property *arg = data; |
||
4195 | struct drm_mode_object *arg_obj; |
||
4196 | struct drm_mode_object *prop_obj; |
||
4197 | struct drm_property *property; |
||
4198 | int ret = -EINVAL; |
||
4199 | int i; |
||
4200 | |||
4201 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
4202 | return -EINVAL; |
||
4203 | |||
3480 | Serge | 4204 | drm_modeset_lock_all(dev); |
3031 | serge | 4205 | |
4206 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
||
4560 | Serge | 4207 | if (!arg_obj) { |
4208 | ret = -ENOENT; |
||
1123 | serge | 4209 | goto out; |
4560 | Serge | 4210 | } |
3031 | serge | 4211 | if (!arg_obj->properties) |
4212 | goto out; |
||
1123 | serge | 4213 | |
3031 | serge | 4214 | for (i = 0; i < arg_obj->properties->count; i++) |
4215 | if (arg_obj->properties->ids[i] == arg->prop_id) |
||
4216 | break; |
||
4217 | |||
4218 | if (i == arg_obj->properties->count) |
||
1123 | serge | 4219 | goto out; |
4220 | |||
3031 | serge | 4221 | prop_obj = drm_mode_object_find(dev, arg->prop_id, |
4222 | DRM_MODE_OBJECT_PROPERTY); |
||
4560 | Serge | 4223 | if (!prop_obj) { |
4224 | ret = -ENOENT; |
||
1123 | serge | 4225 | goto out; |
4560 | Serge | 4226 | } |
3031 | serge | 4227 | property = obj_to_property(prop_obj); |
1123 | serge | 4228 | |
3031 | serge | 4229 | if (!drm_property_change_is_valid(property, arg->value)) |
1123 | serge | 4230 | goto out; |
3031 | serge | 4231 | |
4232 | switch (arg_obj->type) { |
||
4233 | case DRM_MODE_OBJECT_CONNECTOR: |
||
4234 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, |
||
4235 | arg->value); |
||
4236 | break; |
||
4237 | case DRM_MODE_OBJECT_CRTC: |
||
4238 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); |
||
4239 | break; |
||
4240 | case DRM_MODE_OBJECT_PLANE: |
||
5271 | serge | 4241 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4242 | property, arg->value); |
||
1123 | serge | 4243 | break; |
4244 | } |
||
4245 | |||
4246 | out: |
||
3480 | Serge | 4247 | drm_modeset_unlock_all(dev); |
1123 | serge | 4248 | return ret; |
4249 | } |
||
4250 | #endif |
||
4251 | |||
5060 | serge | 4252 | /** |
4253 | * drm_mode_connector_attach_encoder - attach a connector to an encoder |
||
4254 | * @connector: connector to attach |
||
4255 | * @encoder: encoder to attach @connector to |
||
4256 | * |
||
4257 | * This function links up a connector to an encoder. Note that the routing |
||
4258 | * restrictions between encoders and crtcs are exposed to userspace through the |
||
4259 | * possible_clones and possible_crtcs bitmasks. |
||
4260 | * |
||
4261 | * Returns: |
||
5271 | serge | 4262 | * Zero on success, negative errno on failure. |
5060 | serge | 4263 | */ |
1123 | serge | 4264 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4265 | struct drm_encoder *encoder) |
||
4266 | { |
||
4267 | int i; |
||
4268 | |||
4269 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
||
4270 | if (connector->encoder_ids[i] == 0) { |
||
4271 | connector->encoder_ids[i] = encoder->base.id; |
||
4272 | return 0; |
||
4273 | } |
||
4274 | } |
||
4275 | return -ENOMEM; |
||
4276 | } |
||
4277 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
||
4278 | |||
5060 | serge | 4279 | /** |
4280 | * drm_mode_crtc_set_gamma_size - set the gamma table size |
||
4281 | * @crtc: CRTC to set the gamma table size for |
||
4282 | * @gamma_size: size of the gamma table |
||
4283 | * |
||
4284 | * Drivers which support gamma tables should set this to the supported gamma |
||
4285 | * table size when initializing the CRTC. Currently the drm core only supports a |
||
4286 | * fixed gamma table size. |
||
4287 | * |
||
4288 | * Returns: |
||
5271 | serge | 4289 | * Zero on success, negative errno on failure. |
5060 | serge | 4290 | */ |
3031 | serge | 4291 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
1123 | serge | 4292 | int gamma_size) |
4293 | { |
||
4294 | crtc->gamma_size = gamma_size; |
||
4295 | |||
4296 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); |
||
4297 | if (!crtc->gamma_store) { |
||
4298 | crtc->gamma_size = 0; |
||
3031 | serge | 4299 | return -ENOMEM; |
1123 | serge | 4300 | } |
4301 | |||
3031 | serge | 4302 | return 0; |
1123 | serge | 4303 | } |
4304 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
||
4305 | |||
4306 | #if 0 |
||
5060 | serge | 4307 | /** |
4308 | * drm_mode_gamma_set_ioctl - set the gamma table |
||
4309 | * @dev: DRM device |
||
4310 | * @data: ioctl data |
||
4311 | * @file_priv: DRM file info |
||
4312 | * |
||
4313 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can |
||
4314 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. |
||
4315 | * |
||
4316 | * Called by the user via ioctl. |
||
4317 | * |
||
4318 | * Returns: |
||
5271 | serge | 4319 | * Zero on success, negative errno on failure. |
5060 | serge | 4320 | */ |
1123 | serge | 4321 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4322 | void *data, struct drm_file *file_priv) |
||
4323 | { |
||
4324 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
4325 | struct drm_crtc *crtc; |
||
4326 | void *r_base, *g_base, *b_base; |
||
4327 | int size; |
||
4328 | int ret = 0; |
||
4329 | |||
1963 | serge | 4330 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4331 | return -EINVAL; |
||
4332 | |||
3480 | Serge | 4333 | drm_modeset_lock_all(dev); |
5060 | serge | 4334 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4335 | if (!crtc) { |
||
4560 | Serge | 4336 | ret = -ENOENT; |
1123 | serge | 4337 | goto out; |
4338 | } |
||
4339 | |||
3031 | serge | 4340 | if (crtc->funcs->gamma_set == NULL) { |
4341 | ret = -ENOSYS; |
||
4342 | goto out; |
||
4343 | } |
||
4344 | |||
1123 | serge | 4345 | /* memcpy into gamma store */ |
4346 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
4347 | ret = -EINVAL; |
||
4348 | goto out; |
||
4349 | } |
||
4350 | |||
4351 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
4352 | r_base = crtc->gamma_store; |
||
4353 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
||
4354 | ret = -EFAULT; |
||
4355 | goto out; |
||
4356 | } |
||
4357 | |||
4358 | g_base = r_base + size; |
||
4359 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
||
4360 | ret = -EFAULT; |
||
4361 | goto out; |
||
4362 | } |
||
4363 | |||
4364 | b_base = g_base + size; |
||
4365 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
||
4366 | ret = -EFAULT; |
||
4367 | goto out; |
||
4368 | } |
||
4369 | |||
1963 | serge | 4370 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
1123 | serge | 4371 | |
4372 | out: |
||
3480 | Serge | 4373 | drm_modeset_unlock_all(dev); |
1123 | serge | 4374 | return ret; |
4375 | |||
4376 | } |
||
4377 | |||
5060 | serge | 4378 | /** |
4379 | * drm_mode_gamma_get_ioctl - get the gamma table |
||
4380 | * @dev: DRM device |
||
4381 | * @data: ioctl data |
||
4382 | * @file_priv: DRM file info |
||
4383 | * |
||
4384 | * Copy the current gamma table into the storage provided. This also provides |
||
4385 | * the gamma table size the driver expects, which can be used to size the |
||
4386 | * allocated storage. |
||
4387 | * |
||
4388 | * Called by the user via ioctl. |
||
4389 | * |
||
4390 | * Returns: |
||
5271 | serge | 4391 | * Zero on success, negative errno on failure. |
5060 | serge | 4392 | */ |
1123 | serge | 4393 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4394 | void *data, struct drm_file *file_priv) |
||
4395 | { |
||
4396 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
4397 | struct drm_crtc *crtc; |
||
4398 | void *r_base, *g_base, *b_base; |
||
4399 | int size; |
||
4400 | int ret = 0; |
||
4401 | |||
1963 | serge | 4402 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4403 | return -EINVAL; |
||
4404 | |||
3480 | Serge | 4405 | drm_modeset_lock_all(dev); |
5060 | serge | 4406 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4407 | if (!crtc) { |
||
4560 | Serge | 4408 | ret = -ENOENT; |
1123 | serge | 4409 | goto out; |
4410 | } |
||
4411 | |||
4412 | /* memcpy into gamma store */ |
||
4413 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
4414 | ret = -EINVAL; |
||
4415 | goto out; |
||
4416 | } |
||
4417 | |||
4418 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
4419 | r_base = crtc->gamma_store; |
||
4420 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
||
4421 | ret = -EFAULT; |
||
4422 | goto out; |
||
4423 | } |
||
4424 | |||
4425 | g_base = r_base + size; |
||
4426 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
||
4427 | ret = -EFAULT; |
||
4428 | goto out; |
||
4429 | } |
||
4430 | |||
4431 | b_base = g_base + size; |
||
4432 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
||
4433 | ret = -EFAULT; |
||
4434 | goto out; |
||
4435 | } |
||
4436 | out: |
||
3480 | Serge | 4437 | drm_modeset_unlock_all(dev); |
1123 | serge | 4438 | return ret; |
4439 | } |
||
4440 | |||
4441 | #endif |
||
1179 | serge | 4442 | |
4443 | |||
5060 | serge | 4444 | /** |
4445 | * drm_mode_config_reset - call ->reset callbacks |
||
4446 | * @dev: drm device |
||
4447 | * |
||
4448 | * This functions calls all the crtc's, encoder's and connector's ->reset |
||
4449 | * callback. Drivers can use this in e.g. their driver load or resume code to |
||
4450 | * reset hardware and software state. |
||
4451 | */ |
||
1963 | serge | 4452 | void drm_mode_config_reset(struct drm_device *dev) |
4453 | { |
||
4454 | struct drm_crtc *crtc; |
||
5271 | serge | 4455 | struct drm_plane *plane; |
1963 | serge | 4456 | struct drm_encoder *encoder; |
4457 | struct drm_connector *connector; |
||
4458 | |||
5271 | serge | 4459 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
4460 | if (plane->funcs->reset) |
||
4461 | plane->funcs->reset(plane); |
||
4462 | |||
1963 | serge | 4463 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
4464 | if (crtc->funcs->reset) |
||
4465 | crtc->funcs->reset(crtc); |
||
4466 | |||
4467 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
||
4468 | if (encoder->funcs->reset) |
||
4469 | encoder->funcs->reset(encoder); |
||
4470 | |||
3192 | Serge | 4471 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4472 | connector->status = connector_status_unknown; |
||
4473 | |||
1963 | serge | 4474 | if (connector->funcs->reset) |
4475 | connector->funcs->reset(connector); |
||
3192 | Serge | 4476 | } |
1963 | serge | 4477 | } |
4478 | EXPORT_SYMBOL(drm_mode_config_reset); |
||
3031 | serge | 4479 | /* |
4480 | * Just need to support RGB formats here for compat with code that doesn't |
||
4481 | * use pixel formats directly yet. |
||
4482 | */ |
||
4483 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, |
||
4484 | int *bpp) |
||
4485 | { |
||
4486 | switch (format) { |
||
3480 | Serge | 4487 | case DRM_FORMAT_C8: |
3031 | serge | 4488 | case DRM_FORMAT_RGB332: |
4489 | case DRM_FORMAT_BGR233: |
||
4490 | *depth = 8; |
||
4491 | *bpp = 8; |
||
4492 | break; |
||
4493 | case DRM_FORMAT_XRGB1555: |
||
4494 | case DRM_FORMAT_XBGR1555: |
||
4495 | case DRM_FORMAT_RGBX5551: |
||
4496 | case DRM_FORMAT_BGRX5551: |
||
4497 | case DRM_FORMAT_ARGB1555: |
||
4498 | case DRM_FORMAT_ABGR1555: |
||
4499 | case DRM_FORMAT_RGBA5551: |
||
4500 | case DRM_FORMAT_BGRA5551: |
||
4501 | *depth = 15; |
||
4502 | *bpp = 16; |
||
4503 | break; |
||
4504 | case DRM_FORMAT_RGB565: |
||
4505 | case DRM_FORMAT_BGR565: |
||
4506 | *depth = 16; |
||
4507 | *bpp = 16; |
||
4508 | break; |
||
4509 | case DRM_FORMAT_RGB888: |
||
4510 | case DRM_FORMAT_BGR888: |
||
4511 | *depth = 24; |
||
4512 | *bpp = 24; |
||
4513 | break; |
||
4514 | case DRM_FORMAT_XRGB8888: |
||
4515 | case DRM_FORMAT_XBGR8888: |
||
4516 | case DRM_FORMAT_RGBX8888: |
||
4517 | case DRM_FORMAT_BGRX8888: |
||
4518 | *depth = 24; |
||
4519 | *bpp = 32; |
||
4520 | break; |
||
4521 | case DRM_FORMAT_XRGB2101010: |
||
4522 | case DRM_FORMAT_XBGR2101010: |
||
4523 | case DRM_FORMAT_RGBX1010102: |
||
4524 | case DRM_FORMAT_BGRX1010102: |
||
4525 | case DRM_FORMAT_ARGB2101010: |
||
4526 | case DRM_FORMAT_ABGR2101010: |
||
4527 | case DRM_FORMAT_RGBA1010102: |
||
4528 | case DRM_FORMAT_BGRA1010102: |
||
4529 | *depth = 30; |
||
4530 | *bpp = 32; |
||
4531 | break; |
||
4532 | case DRM_FORMAT_ARGB8888: |
||
4533 | case DRM_FORMAT_ABGR8888: |
||
4534 | case DRM_FORMAT_RGBA8888: |
||
4535 | case DRM_FORMAT_BGRA8888: |
||
4536 | *depth = 32; |
||
4537 | *bpp = 32; |
||
4538 | break; |
||
4539 | default: |
||
4560 | Serge | 4540 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4541 | drm_get_format_name(format)); |
||
3031 | serge | 4542 | *depth = 0; |
4543 | *bpp = 0; |
||
4544 | break; |
||
4545 | } |
||
4546 | } |
||
4547 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); |
||
4548 | |||
4549 | /** |
||
4550 | * drm_format_num_planes - get the number of planes for format |
||
4551 | * @format: pixel format (DRM_FORMAT_*) |
||
4552 | * |
||
5060 | serge | 4553 | * Returns: |
3031 | serge | 4554 | * The number of planes used by the specified pixel format. |
4555 | */ |
||
4556 | int drm_format_num_planes(uint32_t format) |
||
4557 | { |
||
4558 | switch (format) { |
||
4559 | case DRM_FORMAT_YUV410: |
||
4560 | case DRM_FORMAT_YVU410: |
||
4561 | case DRM_FORMAT_YUV411: |
||
4562 | case DRM_FORMAT_YVU411: |
||
4563 | case DRM_FORMAT_YUV420: |
||
4564 | case DRM_FORMAT_YVU420: |
||
4565 | case DRM_FORMAT_YUV422: |
||
4566 | case DRM_FORMAT_YVU422: |
||
4567 | case DRM_FORMAT_YUV444: |
||
4568 | case DRM_FORMAT_YVU444: |
||
4569 | return 3; |
||
4570 | case DRM_FORMAT_NV12: |
||
4571 | case DRM_FORMAT_NV21: |
||
4572 | case DRM_FORMAT_NV16: |
||
4573 | case DRM_FORMAT_NV61: |
||
4574 | case DRM_FORMAT_NV24: |
||
4575 | case DRM_FORMAT_NV42: |
||
4576 | return 2; |
||
4577 | default: |
||
4578 | return 1; |
||
4579 | } |
||
4580 | } |
||
4581 | EXPORT_SYMBOL(drm_format_num_planes); |
||
4582 | |||
4583 | /** |
||
4584 | * drm_format_plane_cpp - determine the bytes per pixel value |
||
4585 | * @format: pixel format (DRM_FORMAT_*) |
||
4586 | * @plane: plane index |
||
4587 | * |
||
5060 | serge | 4588 | * Returns: |
3031 | serge | 4589 | * The bytes per pixel value for the specified plane. |
4590 | */ |
||
4591 | int drm_format_plane_cpp(uint32_t format, int plane) |
||
4592 | { |
||
4593 | unsigned int depth; |
||
4594 | int bpp; |
||
4595 | |||
4596 | if (plane >= drm_format_num_planes(format)) |
||
4597 | return 0; |
||
4598 | |||
4599 | switch (format) { |
||
4600 | case DRM_FORMAT_YUYV: |
||
4601 | case DRM_FORMAT_YVYU: |
||
4602 | case DRM_FORMAT_UYVY: |
||
4603 | case DRM_FORMAT_VYUY: |
||
4604 | return 2; |
||
4605 | case DRM_FORMAT_NV12: |
||
4606 | case DRM_FORMAT_NV21: |
||
4607 | case DRM_FORMAT_NV16: |
||
4608 | case DRM_FORMAT_NV61: |
||
4609 | case DRM_FORMAT_NV24: |
||
4610 | case DRM_FORMAT_NV42: |
||
4611 | return plane ? 2 : 1; |
||
4612 | case DRM_FORMAT_YUV410: |
||
4613 | case DRM_FORMAT_YVU410: |
||
4614 | case DRM_FORMAT_YUV411: |
||
4615 | case DRM_FORMAT_YVU411: |
||
4616 | case DRM_FORMAT_YUV420: |
||
4617 | case DRM_FORMAT_YVU420: |
||
4618 | case DRM_FORMAT_YUV422: |
||
4619 | case DRM_FORMAT_YVU422: |
||
4620 | case DRM_FORMAT_YUV444: |
||
4621 | case DRM_FORMAT_YVU444: |
||
4622 | return 1; |
||
4623 | default: |
||
4624 | drm_fb_get_bpp_depth(format, &depth, &bpp); |
||
4625 | return bpp >> 3; |
||
4626 | } |
||
4627 | } |
||
4628 | EXPORT_SYMBOL(drm_format_plane_cpp); |
||
4629 | |||
4630 | /** |
||
4631 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor |
||
4632 | * @format: pixel format (DRM_FORMAT_*) |
||
4633 | * |
||
5060 | serge | 4634 | * Returns: |
3031 | serge | 4635 | * The horizontal chroma subsampling factor for the |
4636 | * specified pixel format. |
||
4637 | */ |
||
4638 | int drm_format_horz_chroma_subsampling(uint32_t format) |
||
4639 | { |
||
4640 | switch (format) { |
||
4641 | case DRM_FORMAT_YUV411: |
||
4642 | case DRM_FORMAT_YVU411: |
||
4643 | case DRM_FORMAT_YUV410: |
||
4644 | case DRM_FORMAT_YVU410: |
||
4645 | return 4; |
||
4646 | case DRM_FORMAT_YUYV: |
||
4647 | case DRM_FORMAT_YVYU: |
||
4648 | case DRM_FORMAT_UYVY: |
||
4649 | case DRM_FORMAT_VYUY: |
||
4650 | case DRM_FORMAT_NV12: |
||
4651 | case DRM_FORMAT_NV21: |
||
4652 | case DRM_FORMAT_NV16: |
||
4653 | case DRM_FORMAT_NV61: |
||
4654 | case DRM_FORMAT_YUV422: |
||
4655 | case DRM_FORMAT_YVU422: |
||
4656 | case DRM_FORMAT_YUV420: |
||
4657 | case DRM_FORMAT_YVU420: |
||
4658 | return 2; |
||
4659 | default: |
||
4660 | return 1; |
||
4661 | } |
||
4662 | } |
||
4663 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); |
||
4664 | |||
4665 | /** |
||
4666 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor |
||
4667 | * @format: pixel format (DRM_FORMAT_*) |
||
4668 | * |
||
5060 | serge | 4669 | * Returns: |
3031 | serge | 4670 | * The vertical chroma subsampling factor for the |
4671 | * specified pixel format. |
||
4672 | */ |
||
4673 | int drm_format_vert_chroma_subsampling(uint32_t format) |
||
4674 | { |
||
4675 | switch (format) { |
||
4676 | case DRM_FORMAT_YUV410: |
||
4677 | case DRM_FORMAT_YVU410: |
||
4678 | return 4; |
||
4679 | case DRM_FORMAT_YUV420: |
||
4680 | case DRM_FORMAT_YVU420: |
||
4681 | case DRM_FORMAT_NV12: |
||
4682 | case DRM_FORMAT_NV21: |
||
4683 | return 2; |
||
4684 | default: |
||
4685 | return 1; |
||
4686 | } |
||
4687 | } |
||
4688 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |
||
3746 | Serge | 4689 | |
4690 | /** |
||
5271 | serge | 4691 | * drm_rotation_simplify() - Try to simplify the rotation |
4692 | * @rotation: Rotation to be simplified |
||
4693 | * @supported_rotations: Supported rotations |
||
4694 | * |
||
4695 | * Attempt to simplify the rotation to a form that is supported. |
||
4696 | * Eg. if the hardware supports everything except DRM_REFLECT_X |
||
4697 | * one could call this function like this: |
||
4698 | * |
||
4699 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | |
||
4700 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | |
||
4701 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); |
||
4702 | * |
||
4703 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of |
||
4704 | * transforms the hardware supports, this function may not |
||
4705 | * be able to produce a supported transform, so the caller should |
||
4706 | * check the result afterwards. |
||
4707 | */ |
||
4708 | unsigned int drm_rotation_simplify(unsigned int rotation, |
||
4709 | unsigned int supported_rotations) |
||
4710 | { |
||
4711 | if (rotation & ~supported_rotations) { |
||
4712 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); |
||
4713 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); |
||
4714 | } |
||
4715 | |||
4716 | return rotation; |
||
4717 | } |
||
4718 | EXPORT_SYMBOL(drm_rotation_simplify); |
||
4719 | |||
4720 | /** |
||
3746 | Serge | 4721 | * drm_mode_config_init - initialize DRM mode_configuration structure |
4722 | * @dev: DRM device |
||
4723 | * |
||
4724 | * Initialize @dev's mode_config structure, used for tracking the graphics |
||
4725 | * configuration of @dev. |
||
4726 | * |
||
4727 | * Since this initializes the modeset locks, no locking is possible. Which is no |
||
4728 | * problem, since this should happen single threaded at init time. It is the |
||
4729 | * driver's problem to ensure this guarantee. |
||
4730 | * |
||
4731 | */ |
||
4732 | void drm_mode_config_init(struct drm_device *dev) |
||
4733 | { |
||
4734 | mutex_init(&dev->mode_config.mutex); |
||
5060 | serge | 4735 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
3746 | Serge | 4736 | mutex_init(&dev->mode_config.idr_mutex); |
4737 | mutex_init(&dev->mode_config.fb_lock); |
||
4738 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
||
4739 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
||
4740 | INIT_LIST_HEAD(&dev->mode_config.connector_list); |
||
4104 | Serge | 4741 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
3746 | Serge | 4742 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4743 | INIT_LIST_HEAD(&dev->mode_config.property_list); |
||
4744 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
||
4745 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
||
4746 | idr_init(&dev->mode_config.crtc_idr); |
||
5271 | serge | 4747 | idr_init(&dev->mode_config.tile_idr); |
3746 | Serge | 4748 | |
4749 | drm_modeset_lock_all(dev); |
||
4750 | drm_mode_create_standard_connector_properties(dev); |
||
5060 | serge | 4751 | drm_mode_create_standard_plane_properties(dev); |
3746 | Serge | 4752 | drm_modeset_unlock_all(dev); |
4753 | |||
4754 | /* Just to be sure */ |
||
4755 | dev->mode_config.num_fb = 0; |
||
4756 | dev->mode_config.num_connector = 0; |
||
4757 | dev->mode_config.num_crtc = 0; |
||
4758 | dev->mode_config.num_encoder = 0; |
||
5060 | serge | 4759 | dev->mode_config.num_overlay_plane = 0; |
4760 | dev->mode_config.num_total_plane = 0; |
||
3746 | Serge | 4761 | } |
4762 | EXPORT_SYMBOL(drm_mode_config_init); |
||
4763 | |||
5060 | serge | 4764 | /** |
4765 | * drm_mode_config_cleanup - free up DRM mode_config info |
||
4766 | * @dev: DRM device |
||
4767 | * |
||
4768 | * Free up all the connectors and CRTCs associated with this DRM device, then |
||
4769 | * free up the framebuffers and associated buffer objects. |
||
4770 | * |
||
4771 | * Note that since this /should/ happen single-threaded at driver/device |
||
4772 | * teardown time, no locking is required. It's the driver's job to ensure that |
||
4773 | * this guarantee actually holds true. |
||
4774 | * |
||
4775 | * FIXME: cleanup any dangling user buffer objects too |
||
4776 | */ |
||
5271 | serge | 4777 | void drm_mode_config_cleanup(struct drm_device *dev) |
4778 | { |
||
4779 | struct drm_connector *connector, *ot; |
||
4780 | struct drm_crtc *crtc, *ct; |
||
4781 | struct drm_encoder *encoder, *enct; |
||
4782 | struct drm_bridge *bridge, *brt; |
||
4783 | struct drm_framebuffer *fb, *fbt; |
||
4784 | struct drm_property *property, *pt; |
||
4785 | struct drm_property_blob *blob, *bt; |
||
4786 | struct drm_plane *plane, *plt; |
||
4787 | |||
4788 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
||
4789 | head) { |
||
4790 | encoder->funcs->destroy(encoder); |
||
4791 | } |
||
4792 | |||
4793 | list_for_each_entry_safe(bridge, brt, |
||
4794 | &dev->mode_config.bridge_list, head) { |
||
4795 | bridge->funcs->destroy(bridge); |
||
4796 | } |
||
4797 | |||
4798 | list_for_each_entry_safe(connector, ot, |
||
4799 | &dev->mode_config.connector_list, head) { |
||
4800 | connector->funcs->destroy(connector); |
||
4801 | } |
||
4802 | |||
4803 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
||
4804 | head) { |
||
4805 | drm_property_destroy(dev, property); |
||
4806 | } |
||
4807 | |||
4808 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
||
4809 | head) { |
||
4810 | drm_property_destroy_blob(dev, blob); |
||
4811 | } |
||
4812 | |||
4813 | /* |
||
4814 | * Single-threaded teardown context, so it's not required to grab the |
||
4815 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
||
4816 | * would actually deadlock with the drm_framebuffer_cleanup function. |
||
4817 | * |
||
4818 | * Also, if there are any framebuffers left, that's a driver leak now, |
||
4819 | * so politely WARN about this. |
||
4820 | */ |
||
4821 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); |
||
4822 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
||
4823 | drm_framebuffer_remove(fb); |
||
4824 | } |
||
4825 | |||
4826 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
||
4827 | head) { |
||
4828 | plane->funcs->destroy(plane); |
||
4829 | } |
||
4830 | |||
4831 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
||
4832 | crtc->funcs->destroy(crtc); |
||
4833 | } |
||
4834 | |||
4835 | idr_destroy(&dev->mode_config.tile_idr); |
||
4836 | idr_destroy(&dev->mode_config.crtc_idr); |
||
4837 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
||
4838 | } |
||
4839 | EXPORT_SYMBOL(drm_mode_config_cleanup); |
||
4840 | |||
4841 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, |
||
4842 | unsigned int supported_rotations) |
||
4843 | { |
||
4844 | static const struct drm_prop_enum_list props[] = { |
||
4845 | { DRM_ROTATE_0, "rotate-0" }, |
||
4846 | { DRM_ROTATE_90, "rotate-90" }, |
||
4847 | { DRM_ROTATE_180, "rotate-180" }, |
||
4848 | { DRM_ROTATE_270, "rotate-270" }, |
||
4849 | { DRM_REFLECT_X, "reflect-x" }, |
||
4850 | { DRM_REFLECT_Y, "reflect-y" }, |
||
4851 | }; |
||
4852 | |||
4853 | return drm_property_create_bitmask(dev, 0, "rotation", |
||
4854 | props, ARRAY_SIZE(props), |
||
4855 | supported_rotations); |
||
4856 | } |
||
4857 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |
||
4858 | |||
4859 | /** |
||
4860 | * DOC: Tile group |
||
4861 | * |
||
4862 | * Tile groups are used to represent tiled monitors with a unique |
||
4863 | * integer identifier. Tiled monitors using DisplayID v1.3 have |
||
4864 | * a unique 8-byte handle, we store this in a tile group, so we |
||
4865 | * have a common identifier for all tiles in a monitor group. |
||
4866 | */ |
||
4867 | static void drm_tile_group_free(struct kref *kref) |
||
4868 | { |
||
4869 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); |
||
4870 | struct drm_device *dev = tg->dev; |
||
4871 | mutex_lock(&dev->mode_config.idr_mutex); |
||
4872 | idr_remove(&dev->mode_config.tile_idr, tg->id); |
||
4873 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4874 | kfree(tg); |
||
4875 | } |
||
4876 | |||
4877 | /** |
||
4878 | * drm_mode_put_tile_group - drop a reference to a tile group. |
||
4879 | * @dev: DRM device |
||
4880 | * @tg: tile group to drop reference to. |
||
4881 | * |
||
4882 | * drop reference to tile group and free if 0. |
||
4883 | */ |
||
4884 | void drm_mode_put_tile_group(struct drm_device *dev, |
||
4885 | struct drm_tile_group *tg) |
||
4886 | { |
||
4887 | kref_put(&tg->refcount, drm_tile_group_free); |
||
4888 | } |
||
4889 | |||
4890 | /** |
||
4891 | * drm_mode_get_tile_group - get a reference to an existing tile group |
||
4892 | * @dev: DRM device |
||
4893 | * @topology: 8-bytes unique per monitor. |
||
4894 | * |
||
4895 | * Use the unique bytes to get a reference to an existing tile group. |
||
4896 | * |
||
4897 | * RETURNS: |
||
4898 | * tile group or NULL if not found. |
||
4899 | */ |
||
4900 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, |
||
4901 | char topology[8]) |
||
4902 | { |
||
4903 | struct drm_tile_group *tg; |
||
4904 | int id; |
||
4905 | mutex_lock(&dev->mode_config.idr_mutex); |
||
4906 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { |
||
4907 | if (!memcmp(tg->group_data, topology, 8)) { |
||
4908 | // if (!kref_get_unless_zero(&tg->refcount)) |
||
4909 | // tg = NULL; |
||
4910 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4911 | return tg; |
||
4912 | } |
||
4913 | } |
||
4914 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4915 | return NULL; |
||
4916 | } |
||
4917 | |||
4918 | /** |
||
4919 | * drm_mode_create_tile_group - create a tile group from a displayid description |
||
4920 | * @dev: DRM device |
||
4921 | * @topology: 8-bytes unique per monitor. |
||
4922 | * |
||
4923 | * Create a tile group for the unique monitor, and get a unique |
||
4924 | * identifier for the tile group. |
||
4925 | * |
||
4926 | * RETURNS: |
||
4927 | * new tile group or error. |
||
4928 | */ |
||
4929 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, |
||
4930 | char topology[8]) |
||
4931 | { |
||
4932 | struct drm_tile_group *tg; |
||
4933 | int ret; |
||
4934 | |||
4935 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); |
||
4936 | if (!tg) |
||
4937 | return ERR_PTR(-ENOMEM); |
||
4938 | |||
4939 | kref_init(&tg->refcount); |
||
4940 | memcpy(tg->group_data, topology, 8); |
||
4941 | tg->dev = dev; |
||
4942 | |||
4943 | mutex_lock(&dev->mode_config.idr_mutex); |
||
4944 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); |
||
4945 | if (ret >= 0) { |
||
4946 | tg->id = ret; |
||
4947 | } else { |
||
4948 | kfree(tg); |
||
4949 | tg = ERR_PTR(ret); |
||
4950 | } |
||
4951 | |||
4952 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4953 | return tg; |
||
4954 | }>>>>>>><>>>>=>=>>>>><>><>>>>>>>>>>><>><>>>>> |