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| Rev | Author | Line No. | Line |
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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 | |||
| 1408 | serge | 47 | struct drm_crtc_helper_funcs { |
| 48 | /* |
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| 49 | * Control power levels on the CRTC. If the mode passed in is |
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| 50 | * unsupported, the provider must use the next lowest power level. |
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| 51 | */ |
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| 52 | void (*dpms)(struct drm_crtc *crtc, int mode); |
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| 53 | void (*prepare)(struct drm_crtc *crtc); |
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| 54 | void (*commit)(struct drm_crtc *crtc); |
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| 55 | |||
| 56 | /* Provider can fixup or change mode timings before modeset occurs */ |
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| 57 | bool (*mode_fixup)(struct drm_crtc *crtc, |
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| 58 | struct drm_display_mode *mode, |
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| 59 | struct drm_display_mode *adjusted_mode); |
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| 60 | /* Actually set the mode */ |
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| 61 | int (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode, |
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| 62 | struct drm_display_mode *adjusted_mode, int x, int y, |
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| 63 | struct drm_framebuffer *old_fb); |
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| 64 | |||
| 65 | /* Move the crtc on the current fb to the given position *optional* */ |
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| 66 | int (*mode_set_base)(struct drm_crtc *crtc, int x, int y, |
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| 67 | struct drm_framebuffer *old_fb); |
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| 1964 | serge | 68 | int (*mode_set_base_atomic)(struct drm_crtc *crtc, |
| 69 | struct drm_framebuffer *fb, int x, int y, |
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| 70 | enum mode_set_atomic); |
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| 1408 | serge | 71 | |
| 72 | /* reload the current crtc LUT */ |
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| 73 | void (*load_lut)(struct drm_crtc *crtc); |
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| 1964 | serge | 74 | |
| 75 | /* disable crtc when not in use - more explicit than dpms off */ |
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| 76 | void (*disable)(struct drm_crtc *crtc); |
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| 1408 | serge | 77 | }; |
| 78 | |||
| 79 | struct drm_encoder_helper_funcs { |
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| 80 | void (*dpms)(struct drm_encoder *encoder, int mode); |
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| 81 | void (*save)(struct drm_encoder *encoder); |
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| 82 | void (*restore)(struct drm_encoder *encoder); |
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| 83 | |||
| 84 | bool (*mode_fixup)(struct drm_encoder *encoder, |
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| 85 | struct drm_display_mode *mode, |
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| 86 | struct drm_display_mode *adjusted_mode); |
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| 87 | void (*prepare)(struct drm_encoder *encoder); |
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| 88 | void (*commit)(struct drm_encoder *encoder); |
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| 89 | void (*mode_set)(struct drm_encoder *encoder, |
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| 90 | struct drm_display_mode *mode, |
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| 91 | struct drm_display_mode *adjusted_mode); |
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| 92 | struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder); |
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| 93 | /* detect for DAC style encoders */ |
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| 94 | enum drm_connector_status (*detect)(struct drm_encoder *encoder, |
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| 95 | struct drm_connector *connector); |
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| 96 | /* disable encoder when not in use - more explicit than dpms off */ |
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| 97 | void (*disable)(struct drm_encoder *encoder); |
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| 98 | }; |
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| 99 | |||
| 100 | struct drm_connector_helper_funcs { |
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| 101 | int (*get_modes)(struct drm_connector *connector); |
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| 102 | int (*mode_valid)(struct drm_connector *connector, |
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| 103 | struct drm_display_mode *mode); |
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| 104 | struct drm_encoder *(*best_encoder)(struct drm_connector *connector); |
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| 105 | }; |
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| 106 | |||
| 107 | extern int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY); |
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| 108 | extern void drm_helper_disable_unused_functions(struct drm_device *dev); |
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| 109 | extern int drm_crtc_helper_set_config(struct drm_mode_set *set); |
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| 110 | extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, |
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| 111 | struct drm_display_mode *mode, |
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| 112 | int x, int y, |
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| 113 | struct drm_framebuffer *old_fb); |
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| 114 | extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc); |
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| 115 | extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder); |
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| 116 | |||
| 117 | extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode); |
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| 118 | |||
| 119 | extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, |
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| 2967 | Serge | 120 | struct drm_mode_fb_cmd2 *mode_cmd); |
| 1408 | serge | 121 | |
| 122 | static inline void drm_crtc_helper_add(struct drm_crtc *crtc, |
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| 123 | const struct drm_crtc_helper_funcs *funcs) |
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| 124 | { |
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| 125 | crtc->helper_private = (void *)funcs; |
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| 126 | } |
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| 127 | |||
| 128 | static inline void drm_encoder_helper_add(struct drm_encoder *encoder, |
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| 129 | const struct drm_encoder_helper_funcs *funcs) |
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| 130 | { |
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| 131 | encoder->helper_private = (void *)funcs; |
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| 132 | } |
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| 133 | |||
| 1964 | serge | 134 | static inline void drm_connector_helper_add(struct drm_connector *connector, |
| 1408 | serge | 135 | const struct drm_connector_helper_funcs *funcs) |
| 136 | { |
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| 137 | connector->helper_private = (void *)funcs; |
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| 138 | } |
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| 139 | |||
| 140 | extern int drm_helper_resume_force_mode(struct drm_device *dev); |
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| 1964 | serge | 141 | extern void drm_kms_helper_poll_init(struct drm_device *dev); |
| 142 | extern void drm_kms_helper_poll_fini(struct drm_device *dev); |
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| 143 | extern void drm_helper_hpd_irq_event(struct drm_device *dev); |
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| 144 | |||
| 145 | extern void drm_kms_helper_poll_disable(struct drm_device *dev); |
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| 146 | extern void drm_kms_helper_poll_enable(struct drm_device *dev); |
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| 2967 | Serge | 147 | |
| 148 | extern int drm_format_num_planes(uint32_t format); |
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| 149 | |||
| 1408 | serge | 150 | #endif |