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1408 | serge | 1 | /* |
2 | * Copyright © 2006 Keith Packard |
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3 | * Copyright © 2007-2008 Dave Airlie |
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4 | * Copyright © 2007-2008 Intel Corporation |
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5 | * Jesse Barnes |
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6 | * |
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7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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8 | * copy of this software and associated documentation files (the "Software"), |
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9 | * to deal in the Software without restriction, including without limitation |
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10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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11 | * and/or sell copies of the Software, and to permit persons to whom the |
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12 | * Software is furnished to do so, subject to the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice shall be included in |
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15 | * all copies or substantial portions of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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20 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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21 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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22 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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23 | * OTHER DEALINGS IN THE SOFTWARE. |
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24 | */ |
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25 | |||
26 | /* |
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27 | * The DRM mode setting helper functions are common code for drivers to use if |
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28 | * they wish. Drivers are not forced to use this code in their |
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29 | * implementations but it would be useful if they code they do use at least |
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30 | * provides a consistent interface and operation to userspace |
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31 | */ |
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32 | |||
33 | #ifndef __DRM_CRTC_HELPER_H__ |
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34 | #define __DRM_CRTC_HELPER_H__ |
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35 | |||
1630 | serge | 36 | #include |
1408 | serge | 37 | #include |
1428 | serge | 38 | #include |
1408 | serge | 39 | |
40 | #include |
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41 | |||
1964 | serge | 42 | enum mode_set_atomic { |
43 | LEAVE_ATOMIC_MODE_SET, |
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44 | ENTER_ATOMIC_MODE_SET, |
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45 | }; |
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46 | |||
3031 | serge | 47 | /** |
48 | * drm_crtc_helper_funcs - helper operations for CRTCs |
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49 | * @mode_fixup: try to fixup proposed mode for this connector |
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50 | * @mode_set: set this mode |
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51 | * |
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52 | * The helper operations are called by the mid-layer CRTC helper. |
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53 | */ |
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1408 | serge | 54 | struct drm_crtc_helper_funcs { |
55 | /* |
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56 | * Control power levels on the CRTC. If the mode passed in is |
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57 | * unsupported, the provider must use the next lowest power level. |
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58 | */ |
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59 | void (*dpms)(struct drm_crtc *crtc, int mode); |
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60 | void (*prepare)(struct drm_crtc *crtc); |
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61 | void (*commit)(struct drm_crtc *crtc); |
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62 | |||
63 | /* Provider can fixup or change mode timings before modeset occurs */ |
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64 | bool (*mode_fixup)(struct drm_crtc *crtc, |
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3031 | serge | 65 | const struct drm_display_mode *mode, |
1408 | serge | 66 | struct drm_display_mode *adjusted_mode); |
67 | /* Actually set the mode */ |
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68 | int (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode, |
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69 | struct drm_display_mode *adjusted_mode, int x, int y, |
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70 | struct drm_framebuffer *old_fb); |
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71 | |||
72 | /* Move the crtc on the current fb to the given position *optional* */ |
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73 | int (*mode_set_base)(struct drm_crtc *crtc, int x, int y, |
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74 | struct drm_framebuffer *old_fb); |
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1964 | serge | 75 | int (*mode_set_base_atomic)(struct drm_crtc *crtc, |
76 | struct drm_framebuffer *fb, int x, int y, |
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77 | enum mode_set_atomic); |
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1408 | serge | 78 | |
79 | /* reload the current crtc LUT */ |
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80 | void (*load_lut)(struct drm_crtc *crtc); |
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1964 | serge | 81 | |
82 | /* disable crtc when not in use - more explicit than dpms off */ |
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83 | void (*disable)(struct drm_crtc *crtc); |
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1408 | serge | 84 | }; |
85 | |||
3031 | serge | 86 | /** |
87 | * drm_encoder_helper_funcs - helper operations for encoders |
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88 | * @mode_fixup: try to fixup proposed mode for this connector |
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89 | * @mode_set: set this mode |
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90 | * |
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91 | * The helper operations are called by the mid-layer CRTC helper. |
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92 | */ |
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1408 | serge | 93 | struct drm_encoder_helper_funcs { |
94 | void (*dpms)(struct drm_encoder *encoder, int mode); |
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95 | void (*save)(struct drm_encoder *encoder); |
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96 | void (*restore)(struct drm_encoder *encoder); |
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97 | |||
98 | bool (*mode_fixup)(struct drm_encoder *encoder, |
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3031 | serge | 99 | const struct drm_display_mode *mode, |
1408 | serge | 100 | struct drm_display_mode *adjusted_mode); |
101 | void (*prepare)(struct drm_encoder *encoder); |
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102 | void (*commit)(struct drm_encoder *encoder); |
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103 | void (*mode_set)(struct drm_encoder *encoder, |
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104 | struct drm_display_mode *mode, |
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105 | struct drm_display_mode *adjusted_mode); |
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106 | struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder); |
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107 | /* detect for DAC style encoders */ |
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108 | enum drm_connector_status (*detect)(struct drm_encoder *encoder, |
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109 | struct drm_connector *connector); |
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110 | /* disable encoder when not in use - more explicit than dpms off */ |
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111 | void (*disable)(struct drm_encoder *encoder); |
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112 | }; |
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113 | |||
3031 | serge | 114 | /** |
115 | * drm_connector_helper_funcs - helper operations for connectors |
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116 | * @get_modes: get mode list for this connector |
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5056 | serge | 117 | * @mode_valid (optional): is this mode valid on the given connector? |
3031 | serge | 118 | * |
119 | * The helper operations are called by the mid-layer CRTC helper. |
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120 | */ |
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1408 | serge | 121 | struct drm_connector_helper_funcs { |
122 | int (*get_modes)(struct drm_connector *connector); |
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4559 | Serge | 123 | enum drm_mode_status (*mode_valid)(struct drm_connector *connector, |
1408 | serge | 124 | struct drm_display_mode *mode); |
125 | struct drm_encoder *(*best_encoder)(struct drm_connector *connector); |
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126 | }; |
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127 | |||
128 | extern void drm_helper_disable_unused_functions(struct drm_device *dev); |
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129 | extern int drm_crtc_helper_set_config(struct drm_mode_set *set); |
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130 | extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, |
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131 | struct drm_display_mode *mode, |
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132 | int x, int y, |
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133 | struct drm_framebuffer *old_fb); |
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134 | extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc); |
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135 | extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder); |
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136 | |||
137 | extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode); |
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138 | |||
3192 | Serge | 139 | extern void drm_helper_move_panel_connectors_to_head(struct drm_device *); |
140 | |||
5056 | serge | 141 | extern void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, |
2967 | Serge | 142 | struct drm_mode_fb_cmd2 *mode_cmd); |
1408 | serge | 143 | |
144 | static inline void drm_crtc_helper_add(struct drm_crtc *crtc, |
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145 | const struct drm_crtc_helper_funcs *funcs) |
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146 | { |
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147 | crtc->helper_private = (void *)funcs; |
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148 | } |
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149 | |||
150 | static inline void drm_encoder_helper_add(struct drm_encoder *encoder, |
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151 | const struct drm_encoder_helper_funcs *funcs) |
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152 | { |
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153 | encoder->helper_private = (void *)funcs; |
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154 | } |
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155 | |||
1964 | serge | 156 | static inline void drm_connector_helper_add(struct drm_connector *connector, |
1408 | serge | 157 | const struct drm_connector_helper_funcs *funcs) |
158 | { |
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159 | connector->helper_private = (void *)funcs; |
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160 | } |
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161 | |||
5056 | serge | 162 | extern void drm_helper_resume_force_mode(struct drm_device *dev); |
163 | |||
164 | /* drm_probe_helper.c */ |
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165 | extern int drm_helper_probe_single_connector_modes(struct drm_connector |
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166 | *connector, uint32_t maxX, |
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167 | uint32_t maxY); |
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168 | extern int drm_helper_probe_single_connector_modes_nomerge(struct drm_connector |
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169 | *connector, |
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170 | uint32_t maxX, |
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171 | uint32_t maxY); |
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1964 | serge | 172 | extern void drm_kms_helper_poll_init(struct drm_device *dev); |
173 | extern void drm_kms_helper_poll_fini(struct drm_device *dev); |
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4559 | Serge | 174 | extern bool drm_helper_hpd_irq_event(struct drm_device *dev); |
3192 | Serge | 175 | extern void drm_kms_helper_hotplug_event(struct drm_device *dev); |
1964 | serge | 176 | |
177 | extern void drm_kms_helper_poll_disable(struct drm_device *dev); |
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178 | extern void drm_kms_helper_poll_enable(struct drm_device *dev); |
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2967 | Serge | 179 | |
1408 | serge | 180 | #endif |