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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 | * |
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5 | * DRM core CRTC related functions |
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6 | * |
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7 | * Permission to use, copy, modify, distribute, and sell this software and its |
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8 | * documentation for any purpose is hereby granted without fee, provided that |
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9 | * the above copyright notice appear in all copies and that both that copyright |
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10 | * notice and this permission notice appear in supporting documentation, and |
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11 | * that the name of the copyright holders not be used in advertising or |
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12 | * publicity pertaining to distribution of the software without specific, |
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13 | * written prior permission. The copyright holders make no representations |
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14 | * about the suitability of this software for any purpose. It is provided "as |
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15 | * is" without express or implied warranty. |
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16 | * |
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17 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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18 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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19 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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20 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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21 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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22 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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23 | * OF THIS SOFTWARE. |
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24 | * |
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25 | * Authors: |
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26 | * Keith Packard |
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27 | * Eric Anholt |
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28 | * Dave Airlie |
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29 | * Jesse Barnes |
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30 | */ |
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31 | |||
5060 | serge | 32 | #include |
3031 | serge | 33 | #include |
34 | #include |
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1123 | serge | 35 | |
3031 | serge | 36 | #include |
5271 | serge | 37 | #include |
3031 | serge | 38 | #include |
39 | #include |
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40 | #include |
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41 | #include |
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5271 | serge | 42 | #include |
43 | #include |
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3031 | serge | 44 | #include |
45 | |||
5271 | serge | 46 | /** |
47 | * DOC: overview |
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48 | * |
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49 | * The CRTC modeset helper library provides a default set_config implementation |
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50 | * in drm_crtc_helper_set_config(). Plus a few other convenience functions using |
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51 | * the same callbacks which drivers can use to e.g. restore the modeset |
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52 | * configuration on resume with drm_helper_resume_force_mode(). |
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53 | * |
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54 | * The driver callbacks are mostly compatible with the atomic modeset helpers, |
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55 | * except for the handling of the primary plane: Atomic helpers require that the |
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56 | * primary plane is implemented as a real standalone plane and not directly tied |
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57 | * to the CRTC state. For easier transition this library provides functions to |
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58 | * implement the old semantics required by the CRTC helpers using the new plane |
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59 | * and atomic helper callbacks. |
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60 | * |
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61 | * Drivers are strongly urged to convert to the atomic helpers (by way of first |
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62 | * converting to the plane helpers). New drivers must not use these functions |
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63 | * but need to implement the atomic interface instead, potentially using the |
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64 | * atomic helpers for that. |
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65 | */ |
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4560 | Serge | 66 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
67 | MODULE_DESCRIPTION("DRM KMS helper"); |
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68 | MODULE_LICENSE("GPL and additional rights"); |
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69 | |||
3192 | Serge | 70 | /** |
71 | * drm_helper_move_panel_connectors_to_head() - move panels to the front in the |
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72 | * connector list |
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73 | * @dev: drm device to operate on |
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74 | * |
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75 | * Some userspace presumes that the first connected connector is the main |
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76 | * display, where it's supposed to display e.g. the login screen. For |
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77 | * laptops, this should be the main panel. Use this function to sort all |
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78 | * (eDP/LVDS) panels to the front of the connector list, instead of |
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79 | * painstakingly trying to initialize them in the right order. |
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80 | */ |
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81 | void drm_helper_move_panel_connectors_to_head(struct drm_device *dev) |
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82 | { |
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83 | struct drm_connector *connector, *tmp; |
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84 | struct list_head panel_list; |
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85 | |||
86 | INIT_LIST_HEAD(&panel_list); |
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87 | |||
88 | list_for_each_entry_safe(connector, tmp, |
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89 | &dev->mode_config.connector_list, head) { |
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90 | if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS || |
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91 | connector->connector_type == DRM_MODE_CONNECTOR_eDP) |
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92 | list_move_tail(&connector->head, &panel_list); |
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93 | } |
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94 | |||
95 | list_splice(&panel_list, &dev->mode_config.connector_list); |
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96 | } |
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97 | EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head); |
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98 | |||
1123 | serge | 99 | /** |
100 | * drm_helper_encoder_in_use - check if a given encoder is in use |
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101 | * @encoder: encoder to check |
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102 | * |
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5060 | serge | 103 | * Checks whether @encoder is with the current mode setting output configuration |
104 | * in use by any connector. This doesn't mean that it is actually enabled since |
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105 | * the DPMS state is tracked separately. |
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1123 | serge | 106 | * |
5060 | serge | 107 | * Returns: |
108 | * True if @encoder is used, false otherwise. |
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1123 | serge | 109 | */ |
110 | bool drm_helper_encoder_in_use(struct drm_encoder *encoder) |
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111 | { |
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112 | struct drm_connector *connector; |
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113 | struct drm_device *dev = encoder->dev; |
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114 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
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115 | if (connector->encoder == encoder) |
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116 | return true; |
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117 | return false; |
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118 | } |
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119 | EXPORT_SYMBOL(drm_helper_encoder_in_use); |
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120 | |||
121 | /** |
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122 | * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config |
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123 | * @crtc: CRTC to check |
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124 | * |
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5060 | serge | 125 | * Checks whether @crtc is with the current mode setting output configuration |
126 | * in use by any connector. This doesn't mean that it is actually enabled since |
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127 | * the DPMS state is tracked separately. |
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1123 | serge | 128 | * |
5060 | serge | 129 | * Returns: |
130 | * True if @crtc is used, false otherwise. |
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1123 | serge | 131 | */ |
132 | bool drm_helper_crtc_in_use(struct drm_crtc *crtc) |
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133 | { |
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134 | struct drm_encoder *encoder; |
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135 | struct drm_device *dev = crtc->dev; |
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136 | /* FIXME: Locking around list access? */ |
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137 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
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138 | if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) |
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139 | return true; |
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140 | return false; |
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141 | } |
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142 | EXPORT_SYMBOL(drm_helper_crtc_in_use); |
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143 | |||
1963 | serge | 144 | static void |
145 | drm_encoder_disable(struct drm_encoder *encoder) |
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146 | { |
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147 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
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148 | |||
4104 | Serge | 149 | if (encoder->bridge) |
150 | encoder->bridge->funcs->disable(encoder->bridge); |
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151 | |||
1963 | serge | 152 | if (encoder_funcs->disable) |
153 | (*encoder_funcs->disable)(encoder); |
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154 | else |
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155 | (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); |
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4104 | Serge | 156 | |
157 | if (encoder->bridge) |
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158 | encoder->bridge->funcs->post_disable(encoder->bridge); |
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1963 | serge | 159 | } |
160 | |||
5060 | serge | 161 | static void __drm_helper_disable_unused_functions(struct drm_device *dev) |
1123 | serge | 162 | { |
163 | struct drm_encoder *encoder; |
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164 | struct drm_crtc *crtc; |
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165 | |||
5060 | serge | 166 | drm_warn_on_modeset_not_all_locked(dev); |
1179 | serge | 167 | |
1123 | serge | 168 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
1179 | serge | 169 | if (!drm_helper_encoder_in_use(encoder)) { |
1963 | serge | 170 | drm_encoder_disable(encoder); |
5060 | serge | 171 | /* disconnect encoder from any connector */ |
1179 | serge | 172 | encoder->crtc = NULL; |
173 | } |
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1123 | serge | 174 | } |
175 | |||
176 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
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177 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
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178 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
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179 | if (!crtc->enabled) { |
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1963 | serge | 180 | if (crtc_funcs->disable) |
181 | (*crtc_funcs->disable)(crtc); |
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182 | else |
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183 | (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF); |
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5060 | serge | 184 | crtc->primary->fb = NULL; |
1123 | serge | 185 | } |
186 | } |
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187 | } |
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5060 | serge | 188 | |
189 | /** |
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190 | * drm_helper_disable_unused_functions - disable unused objects |
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191 | * @dev: DRM device |
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192 | * |
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193 | * This function walks through the entire mode setting configuration of @dev. It |
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194 | * will remove any crtc links of unused encoders and encoder links of |
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195 | * disconnected connectors. Then it will disable all unused encoders and crtcs |
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196 | * either by calling their disable callback if available or by calling their |
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197 | * dpms callback with DRM_MODE_DPMS_OFF. |
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198 | */ |
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199 | void drm_helper_disable_unused_functions(struct drm_device *dev) |
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200 | { |
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201 | drm_modeset_lock_all(dev); |
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202 | __drm_helper_disable_unused_functions(dev); |
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203 | drm_modeset_unlock_all(dev); |
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204 | } |
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1123 | serge | 205 | EXPORT_SYMBOL(drm_helper_disable_unused_functions); |
206 | |||
207 | /* |
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208 | * Check the CRTC we're going to map each output to vs. its current |
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209 | * CRTC. If they don't match, we have to disable the output and the CRTC |
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210 | * since the driver will have to re-route things. |
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211 | */ |
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212 | static void |
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213 | drm_crtc_prepare_encoders(struct drm_device *dev) |
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214 | { |
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215 | struct drm_encoder_helper_funcs *encoder_funcs; |
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216 | struct drm_encoder *encoder; |
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217 | |||
218 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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219 | encoder_funcs = encoder->helper_private; |
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220 | /* Disable unused encoders */ |
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221 | if (encoder->crtc == NULL) |
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1963 | serge | 222 | drm_encoder_disable(encoder); |
1123 | serge | 223 | /* Disable encoders whose CRTC is about to change */ |
224 | if (encoder_funcs->get_crtc && |
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225 | encoder->crtc != (*encoder_funcs->get_crtc)(encoder)) |
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1963 | serge | 226 | drm_encoder_disable(encoder); |
1123 | serge | 227 | } |
228 | } |
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229 | |||
230 | /** |
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3192 | Serge | 231 | * drm_crtc_helper_set_mode - internal helper to set a mode |
1123 | serge | 232 | * @crtc: CRTC to program |
233 | * @mode: mode to use |
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3192 | Serge | 234 | * @x: horizontal offset into the surface |
235 | * @y: vertical offset into the surface |
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236 | * @old_fb: old framebuffer, for cleanup |
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1123 | serge | 237 | * |
238 | * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance |
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3192 | Serge | 239 | * to fixup or reject the mode prior to trying to set it. This is an internal |
240 | * helper that drivers could e.g. use to update properties that require the |
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241 | * entire output pipe to be disabled and re-enabled in a new configuration. For |
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242 | * example for changing whether audio is enabled on a hdmi link or for changing |
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243 | * panel fitter or dither attributes. It is also called by the |
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244 | * drm_crtc_helper_set_config() helper function to drive the mode setting |
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245 | * sequence. |
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1123 | serge | 246 | * |
5060 | serge | 247 | * Returns: |
248 | * True if the mode was set successfully, false otherwise. |
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1123 | serge | 249 | */ |
250 | bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, |
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251 | struct drm_display_mode *mode, |
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252 | int x, int y, |
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253 | struct drm_framebuffer *old_fb) |
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254 | { |
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255 | struct drm_device *dev = crtc->dev; |
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4560 | Serge | 256 | struct drm_display_mode *adjusted_mode, saved_mode; |
1123 | serge | 257 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
258 | struct drm_encoder_helper_funcs *encoder_funcs; |
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259 | int saved_x, saved_y; |
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4560 | Serge | 260 | bool saved_enabled; |
1123 | serge | 261 | struct drm_encoder *encoder; |
262 | bool ret = true; |
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263 | |||
5060 | serge | 264 | drm_warn_on_modeset_not_all_locked(dev); |
265 | |||
4560 | Serge | 266 | saved_enabled = crtc->enabled; |
1123 | serge | 267 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
268 | if (!crtc->enabled) |
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269 | return true; |
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270 | |||
1963 | serge | 271 | adjusted_mode = drm_mode_duplicate(dev, mode); |
4560 | Serge | 272 | if (!adjusted_mode) { |
273 | crtc->enabled = saved_enabled; |
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3031 | serge | 274 | return false; |
4560 | Serge | 275 | } |
1963 | serge | 276 | |
1123 | serge | 277 | saved_mode = crtc->mode; |
278 | saved_x = crtc->x; |
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279 | saved_y = crtc->y; |
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280 | |||
281 | /* Update crtc values up front so the driver can rely on them for mode |
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282 | * setting. |
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283 | */ |
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284 | crtc->mode = *mode; |
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285 | crtc->x = x; |
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286 | crtc->y = y; |
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287 | |||
288 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
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289 | * adjust it according to limitations or connector properties, and also |
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290 | * a chance to reject the mode entirely. |
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291 | */ |
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292 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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293 | |||
294 | if (encoder->crtc != crtc) |
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295 | continue; |
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4104 | Serge | 296 | |
297 | if (encoder->bridge && encoder->bridge->funcs->mode_fixup) { |
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298 | ret = encoder->bridge->funcs->mode_fixup( |
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299 | encoder->bridge, mode, adjusted_mode); |
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300 | if (!ret) { |
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301 | DRM_DEBUG_KMS("Bridge fixup failed\n"); |
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302 | goto done; |
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303 | } |
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304 | } |
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305 | |||
1123 | serge | 306 | encoder_funcs = encoder->helper_private; |
307 | if (!(ret = encoder_funcs->mode_fixup(encoder, mode, |
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308 | adjusted_mode))) { |
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3031 | serge | 309 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
1123 | serge | 310 | goto done; |
311 | } |
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312 | } |
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313 | |||
314 | if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) { |
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3031 | serge | 315 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
1123 | serge | 316 | goto done; |
317 | } |
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1963 | serge | 318 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
1123 | serge | 319 | |
320 | /* Prepare the encoders and CRTCs before setting the mode. */ |
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321 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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322 | |||
323 | if (encoder->crtc != crtc) |
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324 | continue; |
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4104 | Serge | 325 | |
326 | if (encoder->bridge) |
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327 | encoder->bridge->funcs->disable(encoder->bridge); |
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328 | |||
1123 | serge | 329 | encoder_funcs = encoder->helper_private; |
330 | /* Disable the encoders as the first thing we do. */ |
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331 | encoder_funcs->prepare(encoder); |
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4104 | Serge | 332 | |
333 | if (encoder->bridge) |
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334 | encoder->bridge->funcs->post_disable(encoder->bridge); |
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1123 | serge | 335 | } |
336 | |||
337 | drm_crtc_prepare_encoders(dev); |
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338 | |||
339 | crtc_funcs->prepare(crtc); |
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340 | |||
341 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
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342 | * on the DPLL. |
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343 | */ |
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344 | ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb); |
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345 | if (!ret) |
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346 | goto done; |
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347 | |||
348 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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349 | |||
350 | if (encoder->crtc != crtc) |
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351 | continue; |
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352 | |||
1963 | serge | 353 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
5060 | serge | 354 | encoder->base.id, encoder->name, |
1963 | serge | 355 | mode->base.id, mode->name); |
1123 | serge | 356 | encoder_funcs = encoder->helper_private; |
357 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); |
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4104 | Serge | 358 | |
359 | if (encoder->bridge && encoder->bridge->funcs->mode_set) |
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360 | encoder->bridge->funcs->mode_set(encoder->bridge, mode, |
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361 | adjusted_mode); |
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1123 | serge | 362 | } |
363 | |||
364 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
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365 | crtc_funcs->commit(crtc); |
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366 | |||
367 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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368 | |||
369 | if (encoder->crtc != crtc) |
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370 | continue; |
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371 | |||
4104 | Serge | 372 | if (encoder->bridge) |
373 | encoder->bridge->funcs->pre_enable(encoder->bridge); |
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374 | |||
1123 | serge | 375 | encoder_funcs = encoder->helper_private; |
376 | encoder_funcs->commit(encoder); |
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377 | |||
4104 | Serge | 378 | if (encoder->bridge) |
379 | encoder->bridge->funcs->enable(encoder->bridge); |
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1123 | serge | 380 | } |
381 | |||
1963 | serge | 382 | /* Store real post-adjustment hardware mode. */ |
383 | crtc->hwmode = *adjusted_mode; |
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384 | |||
385 | /* Calculate and store various constants which |
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386 | * are later needed by vblank and swap-completion |
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387 | * timestamping. They are derived from true hwmode. |
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388 | */ |
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4560 | Serge | 389 | drm_calc_timestamping_constants(crtc, &crtc->hwmode); |
1963 | serge | 390 | |
1123 | serge | 391 | /* FIXME: add subpixel order */ |
392 | done: |
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1963 | serge | 393 | drm_mode_destroy(dev, adjusted_mode); |
1123 | serge | 394 | if (!ret) { |
4560 | Serge | 395 | crtc->enabled = saved_enabled; |
1123 | serge | 396 | crtc->mode = saved_mode; |
397 | crtc->x = saved_x; |
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398 | crtc->y = saved_y; |
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399 | } |
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1179 | serge | 400 | |
1123 | serge | 401 | return ret; |
402 | } |
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403 | EXPORT_SYMBOL(drm_crtc_helper_set_mode); |
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404 | |||
5060 | serge | 405 | static void |
3031 | serge | 406 | drm_crtc_helper_disable(struct drm_crtc *crtc) |
407 | { |
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408 | struct drm_device *dev = crtc->dev; |
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409 | struct drm_connector *connector; |
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410 | struct drm_encoder *encoder; |
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411 | |||
412 | /* Decouple all encoders and their attached connectors from this crtc */ |
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413 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
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414 | if (encoder->crtc != crtc) |
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415 | continue; |
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416 | |||
417 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
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418 | if (connector->encoder != encoder) |
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419 | continue; |
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420 | |||
421 | connector->encoder = NULL; |
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4560 | Serge | 422 | |
423 | /* |
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424 | * drm_helper_disable_unused_functions() ought to be |
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425 | * doing this, but since we've decoupled the encoder |
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426 | * from the connector above, the required connection |
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427 | * between them is henceforth no longer available. |
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428 | */ |
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429 | connector->dpms = DRM_MODE_DPMS_OFF; |
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3031 | serge | 430 | } |
431 | } |
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432 | |||
5060 | serge | 433 | __drm_helper_disable_unused_functions(dev); |
3031 | serge | 434 | } |
435 | |||
1123 | serge | 436 | /** |
437 | * drm_crtc_helper_set_config - set a new config from userspace |
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3192 | Serge | 438 | * @set: mode set configuration |
1123 | serge | 439 | * |
3192 | Serge | 440 | * Setup a new configuration, provided by the upper layers (either an ioctl call |
5060 | serge | 441 | * from userspace or internally e.g. from the fbdev support code) in @set, and |
3192 | Serge | 442 | * enable it. This is the main helper functions for drivers that implement |
443 | * kernel mode setting with the crtc helper functions and the assorted |
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444 | * ->prepare(), ->modeset() and ->commit() helper callbacks. |
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1123 | serge | 445 | * |
5060 | serge | 446 | * Returns: |
447 | * Returns 0 on success, negative errno numbers on failure. |
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1123 | serge | 448 | */ |
449 | int drm_crtc_helper_set_config(struct drm_mode_set *set) |
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450 | { |
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451 | struct drm_device *dev; |
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4560 | Serge | 452 | struct drm_crtc *new_crtc; |
1179 | serge | 453 | struct drm_encoder *save_encoders, *new_encoder, *encoder; |
454 | bool mode_changed = false; /* if true do a full mode set */ |
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455 | bool fb_changed = false; /* if true and !mode_changed just do a flip */ |
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456 | struct drm_connector *save_connectors, *connector; |
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1123 | serge | 457 | int count = 0, ro, fail = 0; |
458 | struct drm_crtc_helper_funcs *crtc_funcs; |
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3031 | serge | 459 | struct drm_mode_set save_set; |
460 | int ret; |
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1963 | serge | 461 | int i; |
1123 | serge | 462 | |
1179 | serge | 463 | DRM_DEBUG_KMS("\n"); |
1123 | serge | 464 | |
4075 | Serge | 465 | BUG_ON(!set); |
466 | BUG_ON(!set->crtc); |
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467 | BUG_ON(!set->crtc->helper_private); |
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1123 | serge | 468 | |
4075 | Serge | 469 | /* Enforce sane interface api - has been abused by the fb helper. */ |
470 | BUG_ON(!set->mode && set->fb); |
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471 | BUG_ON(set->fb && set->num_connectors == 0); |
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1123 | serge | 472 | |
473 | crtc_funcs = set->crtc->helper_private; |
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474 | |||
1963 | serge | 475 | if (!set->mode) |
476 | set->fb = NULL; |
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477 | |||
478 | if (set->fb) { |
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479 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", |
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480 | set->crtc->base.id, set->fb->base.id, |
||
1123 | serge | 481 | (int)set->num_connectors, set->x, set->y); |
1963 | serge | 482 | } else { |
483 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); |
||
5060 | serge | 484 | drm_crtc_helper_disable(set->crtc); |
485 | return 0; |
||
1963 | serge | 486 | } |
1123 | serge | 487 | |
488 | dev = set->crtc->dev; |
||
489 | |||
5060 | serge | 490 | drm_warn_on_modeset_not_all_locked(dev); |
491 | |||
4560 | Serge | 492 | /* |
493 | * Allocate space for the backup of all (non-pointer) encoder and |
||
494 | * connector data. |
||
495 | */ |
||
1179 | serge | 496 | save_encoders = kzalloc(dev->mode_config.num_encoder * |
497 | sizeof(struct drm_encoder), GFP_KERNEL); |
||
4560 | Serge | 498 | if (!save_encoders) |
1123 | serge | 499 | return -ENOMEM; |
500 | |||
1179 | serge | 501 | save_connectors = kzalloc(dev->mode_config.num_connector * |
502 | sizeof(struct drm_connector), GFP_KERNEL); |
||
503 | if (!save_connectors) { |
||
504 | kfree(save_encoders); |
||
505 | return -ENOMEM; |
||
506 | } |
||
507 | |||
4560 | Serge | 508 | /* |
509 | * Copy data. Note that driver private data is not affected. |
||
1179 | serge | 510 | * Should anything bad happen only the expected state is |
511 | * restored, not the drivers personal bookkeeping. |
||
512 | */ |
||
513 | count = 0; |
||
514 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
||
515 | save_encoders[count++] = *encoder; |
||
516 | } |
||
517 | |||
518 | count = 0; |
||
519 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
520 | save_connectors[count++] = *connector; |
||
521 | } |
||
522 | |||
3031 | serge | 523 | save_set.crtc = set->crtc; |
524 | save_set.mode = &set->crtc->mode; |
||
525 | save_set.x = set->crtc->x; |
||
526 | save_set.y = set->crtc->y; |
||
5060 | serge | 527 | save_set.fb = set->crtc->primary->fb; |
3031 | serge | 528 | |
1123 | serge | 529 | /* We should be able to check here if the fb has the same properties |
530 | * and then just flip_or_move it */ |
||
5060 | serge | 531 | if (set->crtc->primary->fb != set->fb) { |
1123 | serge | 532 | /* If we have no fb then treat it as a full mode set */ |
5060 | serge | 533 | if (set->crtc->primary->fb == NULL) { |
1179 | serge | 534 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); |
1123 | serge | 535 | mode_changed = true; |
1179 | serge | 536 | } else if (set->fb == NULL) { |
537 | mode_changed = true; |
||
3746 | Serge | 538 | } else if (set->fb->pixel_format != |
5060 | serge | 539 | set->crtc->primary->fb->pixel_format) { |
3746 | Serge | 540 | mode_changed = true; |
1430 | serge | 541 | } else |
1123 | serge | 542 | fb_changed = true; |
543 | } |
||
544 | |||
545 | if (set->x != set->crtc->x || set->y != set->crtc->y) |
||
546 | fb_changed = true; |
||
547 | |||
548 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { |
||
1179 | serge | 549 | DRM_DEBUG_KMS("modes are different, full mode set\n"); |
1123 | serge | 550 | drm_mode_debug_printmodeline(&set->crtc->mode); |
551 | drm_mode_debug_printmodeline(set->mode); |
||
552 | mode_changed = true; |
||
553 | } |
||
554 | |||
555 | /* a) traverse passed in connector list and get encoders for them */ |
||
556 | count = 0; |
||
557 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
558 | struct drm_connector_helper_funcs *connector_funcs = |
||
559 | connector->helper_private; |
||
560 | new_encoder = connector->encoder; |
||
561 | for (ro = 0; ro < set->num_connectors; ro++) { |
||
562 | if (set->connectors[ro] == connector) { |
||
563 | new_encoder = connector_funcs->best_encoder(connector); |
||
564 | /* if we can't get an encoder for a connector |
||
565 | we are setting now - then fail */ |
||
566 | if (new_encoder == NULL) |
||
567 | /* don't break so fail path works correct */ |
||
568 | fail = 1; |
||
4075 | Serge | 569 | |
570 | if (connector->dpms != DRM_MODE_DPMS_ON) { |
||
571 | DRM_DEBUG_KMS("connector dpms not on, full mode switch\n"); |
||
572 | mode_changed = true; |
||
573 | } |
||
5060 | serge | 574 | |
575 | break; |
||
1123 | serge | 576 | } |
577 | } |
||
578 | |||
579 | if (new_encoder != connector->encoder) { |
||
1179 | serge | 580 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
1123 | serge | 581 | mode_changed = true; |
1179 | serge | 582 | /* If the encoder is reused for another connector, then |
583 | * the appropriate crtc will be set later. |
||
584 | */ |
||
585 | if (connector->encoder) |
||
586 | connector->encoder->crtc = NULL; |
||
1123 | serge | 587 | connector->encoder = new_encoder; |
588 | } |
||
589 | } |
||
590 | |||
591 | if (fail) { |
||
592 | ret = -EINVAL; |
||
1179 | serge | 593 | goto fail; |
1123 | serge | 594 | } |
595 | |||
596 | count = 0; |
||
597 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
598 | if (!connector->encoder) |
||
599 | continue; |
||
600 | |||
601 | if (connector->encoder->crtc == set->crtc) |
||
602 | new_crtc = NULL; |
||
603 | else |
||
604 | new_crtc = connector->encoder->crtc; |
||
605 | |||
606 | for (ro = 0; ro < set->num_connectors; ro++) { |
||
607 | if (set->connectors[ro] == connector) |
||
608 | new_crtc = set->crtc; |
||
609 | } |
||
610 | |||
611 | /* Make sure the new CRTC will work with the encoder */ |
||
612 | if (new_crtc && |
||
613 | !drm_encoder_crtc_ok(connector->encoder, new_crtc)) { |
||
614 | ret = -EINVAL; |
||
1179 | serge | 615 | goto fail; |
1123 | serge | 616 | } |
617 | if (new_crtc != connector->encoder->crtc) { |
||
1179 | serge | 618 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
1123 | serge | 619 | mode_changed = true; |
620 | connector->encoder->crtc = new_crtc; |
||
621 | } |
||
1963 | serge | 622 | if (new_crtc) { |
623 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", |
||
5060 | serge | 624 | connector->base.id, connector->name, |
1963 | serge | 625 | new_crtc->base.id); |
626 | } else { |
||
627 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", |
||
5060 | serge | 628 | connector->base.id, connector->name); |
1963 | serge | 629 | } |
1123 | serge | 630 | } |
631 | |||
632 | /* mode_set_base is not a required function */ |
||
633 | if (fb_changed && !crtc_funcs->mode_set_base) |
||
634 | mode_changed = true; |
||
635 | |||
636 | if (mode_changed) { |
||
4560 | Serge | 637 | if (drm_helper_crtc_in_use(set->crtc)) { |
1179 | serge | 638 | DRM_DEBUG_KMS("attempting to set mode from" |
639 | " userspace\n"); |
||
1123 | serge | 640 | drm_mode_debug_printmodeline(set->mode); |
5060 | serge | 641 | set->crtc->primary->fb = set->fb; |
1123 | serge | 642 | if (!drm_crtc_helper_set_mode(set->crtc, set->mode, |
643 | set->x, set->y, |
||
4560 | Serge | 644 | save_set.fb)) { |
1963 | serge | 645 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", |
646 | set->crtc->base.id); |
||
5060 | serge | 647 | set->crtc->primary->fb = save_set.fb; |
1123 | serge | 648 | ret = -EINVAL; |
1179 | serge | 649 | goto fail; |
1123 | serge | 650 | } |
1963 | serge | 651 | DRM_DEBUG_KMS("Setting connector DPMS state to on\n"); |
652 | for (i = 0; i < set->num_connectors; i++) { |
||
653 | DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, |
||
5060 | serge | 654 | set->connectors[i]->name); |
3031 | serge | 655 | set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON); |
1963 | serge | 656 | } |
1123 | serge | 657 | } |
5060 | serge | 658 | __drm_helper_disable_unused_functions(dev); |
1123 | serge | 659 | } else if (fb_changed) { |
1179 | serge | 660 | set->crtc->x = set->x; |
661 | set->crtc->y = set->y; |
||
5060 | serge | 662 | set->crtc->primary->fb = set->fb; |
1123 | serge | 663 | ret = crtc_funcs->mode_set_base(set->crtc, |
4560 | Serge | 664 | set->x, set->y, save_set.fb); |
1963 | serge | 665 | if (ret != 0) { |
4560 | Serge | 666 | set->crtc->x = save_set.x; |
667 | set->crtc->y = save_set.y; |
||
5060 | serge | 668 | set->crtc->primary->fb = save_set.fb; |
1179 | serge | 669 | goto fail; |
1123 | serge | 670 | } |
1963 | serge | 671 | } |
1123 | serge | 672 | |
1179 | serge | 673 | kfree(save_connectors); |
1123 | serge | 674 | kfree(save_encoders); |
675 | return 0; |
||
676 | |||
1179 | serge | 677 | fail: |
678 | /* Restore all previous data. */ |
||
1123 | serge | 679 | count = 0; |
1179 | serge | 680 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
681 | *encoder = save_encoders[count++]; |
||
1123 | serge | 682 | } |
1179 | serge | 683 | |
1123 | serge | 684 | count = 0; |
685 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
1179 | serge | 686 | *connector = save_connectors[count++]; |
1123 | serge | 687 | } |
1179 | serge | 688 | |
3031 | serge | 689 | /* Try to restore the config */ |
690 | if (mode_changed && |
||
691 | !drm_crtc_helper_set_mode(save_set.crtc, save_set.mode, save_set.x, |
||
692 | save_set.y, save_set.fb)) |
||
693 | DRM_ERROR("failed to restore config after modeset failure\n"); |
||
694 | |||
1179 | serge | 695 | kfree(save_connectors); |
1123 | serge | 696 | kfree(save_encoders); |
697 | return ret; |
||
698 | } |
||
699 | EXPORT_SYMBOL(drm_crtc_helper_set_config); |
||
700 | |||
701 | static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder) |
||
702 | { |
||
703 | int dpms = DRM_MODE_DPMS_OFF; |
||
704 | struct drm_connector *connector; |
||
705 | struct drm_device *dev = encoder->dev; |
||
706 | |||
707 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
||
708 | if (connector->encoder == encoder) |
||
709 | if (connector->dpms < dpms) |
||
710 | dpms = connector->dpms; |
||
711 | return dpms; |
||
712 | } |
||
713 | |||
4104 | Serge | 714 | /* Helper which handles bridge ordering around encoder dpms */ |
715 | static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode) |
||
716 | { |
||
717 | struct drm_bridge *bridge = encoder->bridge; |
||
718 | struct drm_encoder_helper_funcs *encoder_funcs; |
||
719 | |||
720 | if (bridge) { |
||
721 | if (mode == DRM_MODE_DPMS_ON) |
||
722 | bridge->funcs->pre_enable(bridge); |
||
723 | else |
||
724 | bridge->funcs->disable(bridge); |
||
725 | } |
||
726 | |||
727 | encoder_funcs = encoder->helper_private; |
||
728 | if (encoder_funcs->dpms) |
||
729 | encoder_funcs->dpms(encoder, mode); |
||
730 | |||
731 | if (bridge) { |
||
732 | if (mode == DRM_MODE_DPMS_ON) |
||
733 | bridge->funcs->enable(bridge); |
||
734 | else |
||
735 | bridge->funcs->post_disable(bridge); |
||
736 | } |
||
737 | } |
||
738 | |||
1123 | serge | 739 | static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) |
740 | { |
||
741 | int dpms = DRM_MODE_DPMS_OFF; |
||
742 | struct drm_connector *connector; |
||
743 | struct drm_device *dev = crtc->dev; |
||
744 | |||
745 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
||
746 | if (connector->encoder && connector->encoder->crtc == crtc) |
||
747 | if (connector->dpms < dpms) |
||
748 | dpms = connector->dpms; |
||
749 | return dpms; |
||
750 | } |
||
751 | |||
752 | /** |
||
3192 | Serge | 753 | * drm_helper_connector_dpms() - connector dpms helper implementation |
754 | * @connector: affected connector |
||
755 | * @mode: DPMS mode |
||
1123 | serge | 756 | * |
3192 | Serge | 757 | * This is the main helper function provided by the crtc helper framework for |
758 | * implementing the DPMS connector attribute. It computes the new desired DPMS |
||
759 | * state for all encoders and crtcs in the output mesh and calls the ->dpms() |
||
760 | * callback provided by the driver appropriately. |
||
1123 | serge | 761 | */ |
762 | void drm_helper_connector_dpms(struct drm_connector *connector, int mode) |
||
763 | { |
||
764 | struct drm_encoder *encoder = connector->encoder; |
||
765 | struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; |
||
4104 | Serge | 766 | int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF; |
1123 | serge | 767 | |
768 | if (mode == connector->dpms) |
||
769 | return; |
||
770 | |||
771 | old_dpms = connector->dpms; |
||
772 | connector->dpms = mode; |
||
773 | |||
4104 | Serge | 774 | if (encoder) |
775 | encoder_dpms = drm_helper_choose_encoder_dpms(encoder); |
||
776 | |||
1123 | serge | 777 | /* from off to on, do crtc then encoder */ |
778 | if (mode < old_dpms) { |
||
779 | if (crtc) { |
||
780 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
||
781 | if (crtc_funcs->dpms) |
||
782 | (*crtc_funcs->dpms) (crtc, |
||
783 | drm_helper_choose_crtc_dpms(crtc)); |
||
784 | } |
||
4104 | Serge | 785 | if (encoder) |
786 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
||
1123 | serge | 787 | } |
788 | |||
789 | /* from on to off, do encoder then crtc */ |
||
790 | if (mode > old_dpms) { |
||
4104 | Serge | 791 | if (encoder) |
792 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
||
1123 | serge | 793 | if (crtc) { |
794 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
||
795 | if (crtc_funcs->dpms) |
||
796 | (*crtc_funcs->dpms) (crtc, |
||
797 | drm_helper_choose_crtc_dpms(crtc)); |
||
798 | } |
||
799 | } |
||
800 | |||
801 | return; |
||
802 | } |
||
803 | EXPORT_SYMBOL(drm_helper_connector_dpms); |
||
804 | |||
5060 | serge | 805 | /** |
806 | * drm_helper_mode_fill_fb_struct - fill out framebuffer metadata |
||
807 | * @fb: drm_framebuffer object to fill out |
||
808 | * @mode_cmd: metadata from the userspace fb creation request |
||
809 | * |
||
810 | * This helper can be used in a drivers fb_create callback to pre-fill the fb's |
||
811 | * metadata fields. |
||
812 | */ |
||
813 | void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, |
||
3031 | serge | 814 | struct drm_mode_fb_cmd2 *mode_cmd) |
1123 | serge | 815 | { |
3031 | serge | 816 | int i; |
817 | |||
1123 | serge | 818 | fb->width = mode_cmd->width; |
819 | fb->height = mode_cmd->height; |
||
3031 | serge | 820 | for (i = 0; i < 4; i++) { |
821 | fb->pitches[i] = mode_cmd->pitches[i]; |
||
822 | fb->offsets[i] = mode_cmd->offsets[i]; |
||
823 | } |
||
824 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth, |
||
825 | &fb->bits_per_pixel); |
||
826 | fb->pixel_format = mode_cmd->pixel_format; |
||
5060 | serge | 827 | fb->flags = mode_cmd->flags; |
1123 | serge | 828 | } |
829 | EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct); |
||
830 | |||
5060 | serge | 831 | /** |
832 | * drm_helper_resume_force_mode - force-restore mode setting configuration |
||
833 | * @dev: drm_device which should be restored |
||
834 | * |
||
835 | * Drivers which use the mode setting helpers can use this function to |
||
836 | * force-restore the mode setting configuration e.g. on resume or when something |
||
837 | * else might have trampled over the hw state (like some overzealous old BIOSen |
||
838 | * tended to do). |
||
839 | * |
||
840 | * This helper doesn't provide a error return value since restoring the old |
||
841 | * config should never fail due to resource allocation issues since the driver |
||
842 | * has successfully set the restored configuration already. Hence this should |
||
843 | * boil down to the equivalent of a few dpms on calls, which also don't provide |
||
844 | * an error code. |
||
845 | * |
||
846 | * Drivers where simply restoring an old configuration again might fail (e.g. |
||
847 | * due to slight differences in allocating shared resources when the |
||
848 | * configuration is restored in a different order than when userspace set it up) |
||
849 | * need to use their own restore logic. |
||
850 | */ |
||
851 | void drm_helper_resume_force_mode(struct drm_device *dev) |
||
1123 | serge | 852 | { |
853 | struct drm_crtc *crtc; |
||
1404 | serge | 854 | struct drm_encoder *encoder; |
855 | struct drm_crtc_helper_funcs *crtc_funcs; |
||
5060 | serge | 856 | int encoder_dpms; |
857 | bool ret; |
||
1123 | serge | 858 | |
5060 | serge | 859 | drm_modeset_lock_all(dev); |
1123 | serge | 860 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
861 | |||
1179 | serge | 862 | if (!crtc->enabled) |
863 | continue; |
||
1123 | serge | 864 | |
1179 | serge | 865 | ret = drm_crtc_helper_set_mode(crtc, &crtc->mode, |
5060 | serge | 866 | crtc->x, crtc->y, crtc->primary->fb); |
1123 | serge | 867 | |
5060 | serge | 868 | /* Restoring the old config should never fail! */ |
1123 | serge | 869 | if (ret == false) |
870 | DRM_ERROR("failed to set mode on crtc %p\n", crtc); |
||
1404 | serge | 871 | |
872 | /* Turn off outputs that were already powered off */ |
||
873 | if (drm_helper_choose_crtc_dpms(crtc)) { |
||
874 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
||
875 | |||
876 | if(encoder->crtc != crtc) |
||
877 | continue; |
||
878 | |||
4104 | Serge | 879 | encoder_dpms = drm_helper_choose_encoder_dpms( |
880 | encoder); |
||
881 | |||
882 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
||
1963 | serge | 883 | } |
1404 | serge | 884 | |
885 | crtc_funcs = crtc->helper_private; |
||
886 | if (crtc_funcs->dpms) |
||
887 | (*crtc_funcs->dpms) (crtc, |
||
888 | drm_helper_choose_crtc_dpms(crtc)); |
||
889 | } |
||
890 | } |
||
5060 | serge | 891 | |
1179 | serge | 892 | /* disable the unused connectors while restoring the modesetting */ |
5060 | serge | 893 | __drm_helper_disable_unused_functions(dev); |
894 | drm_modeset_unlock_all(dev); |
||
1123 | serge | 895 | } |
896 | EXPORT_SYMBOL(drm_helper_resume_force_mode); |
||
5271 | serge | 897 | |
898 | /** |
||
899 | * drm_helper_crtc_mode_set - mode_set implementation for atomic plane helpers |
||
900 | * @crtc: DRM CRTC |
||
901 | * @mode: DRM display mode which userspace requested |
||
902 | * @adjusted_mode: DRM display mode adjusted by ->mode_fixup callbacks |
||
903 | * @x: x offset of the CRTC scanout area on the underlying framebuffer |
||
904 | * @y: y offset of the CRTC scanout area on the underlying framebuffer |
||
905 | * @old_fb: previous framebuffer |
||
906 | * |
||
907 | * This function implements a callback useable as the ->mode_set callback |
||
908 | * required by the crtc helpers. Besides the atomic plane helper functions for |
||
909 | * the primary plane the driver must also provide the ->mode_set_nofb callback |
||
910 | * to set up the crtc. |
||
911 | * |
||
912 | * This is a transitional helper useful for converting drivers to the atomic |
||
913 | * interfaces. |
||
914 | */ |
||
915 | int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, |
||
916 | struct drm_display_mode *adjusted_mode, int x, int y, |
||
917 | struct drm_framebuffer *old_fb) |
||
918 | { |
||
919 | struct drm_crtc_state *crtc_state; |
||
920 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
||
921 | int ret; |
||
922 | |||
923 | if (crtc->funcs->atomic_duplicate_state) |
||
924 | crtc_state = crtc->funcs->atomic_duplicate_state(crtc); |
||
925 | else if (crtc->state) |
||
926 | crtc_state = kmemdup(crtc->state, sizeof(*crtc_state), |
||
927 | GFP_KERNEL); |
||
928 | else |
||
929 | crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); |
||
930 | if (!crtc_state) |
||
931 | return -ENOMEM; |
||
932 | |||
933 | crtc_state->enable = true; |
||
934 | crtc_state->planes_changed = true; |
||
935 | crtc_state->mode_changed = true; |
||
936 | drm_mode_copy(&crtc_state->mode, mode); |
||
937 | drm_mode_copy(&crtc_state->adjusted_mode, adjusted_mode); |
||
938 | |||
939 | if (crtc_funcs->atomic_check) { |
||
940 | ret = crtc_funcs->atomic_check(crtc, crtc_state); |
||
941 | if (ret) { |
||
942 | kfree(crtc_state); |
||
943 | |||
944 | return ret; |
||
945 | } |
||
946 | } |
||
947 | |||
948 | swap(crtc->state, crtc_state); |
||
949 | |||
950 | crtc_funcs->mode_set_nofb(crtc); |
||
951 | |||
952 | if (crtc_state) { |
||
953 | if (crtc->funcs->atomic_destroy_state) |
||
954 | crtc->funcs->atomic_destroy_state(crtc, crtc_state); |
||
955 | else |
||
956 | kfree(crtc_state); |
||
957 | } |
||
958 | |||
959 | return drm_helper_crtc_mode_set_base(crtc, x, y, old_fb); |
||
960 | } |
||
961 | EXPORT_SYMBOL(drm_helper_crtc_mode_set); |
||
962 | |||
963 | /** |
||
964 | * drm_helper_crtc_mode_set_base - mode_set_base implementation for atomic plane helpers |
||
965 | * @crtc: DRM CRTC |
||
966 | * @x: x offset of the CRTC scanout area on the underlying framebuffer |
||
967 | * @y: y offset of the CRTC scanout area on the underlying framebuffer |
||
968 | * @old_fb: previous framebuffer |
||
969 | * |
||
970 | * This function implements a callback useable as the ->mode_set_base used |
||
971 | * required by the crtc helpers. The driver must provide the atomic plane helper |
||
972 | * functions for the primary plane. |
||
973 | * |
||
974 | * This is a transitional helper useful for converting drivers to the atomic |
||
975 | * interfaces. |
||
976 | */ |
||
977 | int drm_helper_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, |
||
978 | struct drm_framebuffer *old_fb) |
||
979 | { |
||
980 | struct drm_plane_state *plane_state; |
||
981 | struct drm_plane *plane = crtc->primary; |
||
982 | |||
983 | if (plane->funcs->atomic_duplicate_state) |
||
984 | plane_state = plane->funcs->atomic_duplicate_state(plane); |
||
985 | else if (plane->state) |
||
986 | plane_state = drm_atomic_helper_plane_duplicate_state(plane); |
||
987 | else |
||
988 | plane_state = kzalloc(sizeof(*plane_state), GFP_KERNEL); |
||
989 | if (!plane_state) |
||
990 | return -ENOMEM; |
||
991 | |||
992 | plane_state->crtc = crtc; |
||
993 | drm_atomic_set_fb_for_plane(plane_state, crtc->primary->fb); |
||
994 | plane_state->crtc_x = 0; |
||
995 | plane_state->crtc_y = 0; |
||
996 | plane_state->crtc_h = crtc->mode.vdisplay; |
||
997 | plane_state->crtc_w = crtc->mode.hdisplay; |
||
998 | plane_state->src_x = x << 16; |
||
999 | plane_state->src_y = y << 16; |
||
1000 | plane_state->src_h = crtc->mode.vdisplay << 16; |
||
1001 | plane_state->src_w = crtc->mode.hdisplay << 16; |
||
1002 | |||
1003 | return drm_plane_helper_commit(plane, plane_state, old_fb); |
||
1004 | } |
||
1005 | EXPORT_SYMBOL(drm_helper_crtc_mode_set_base);><>><>><>><>>>>>>>> |