Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006-2009 Red Hat Inc. |
| 3 | * Copyright (c) 2006-2008 Intel Corporation |
| 4 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| 5 | * |
| 6 | * DRM framebuffer helper functions |
| 7 | * |
| 8 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 9 | * documentation for any purpose is hereby granted without fee, provided that |
| 10 | * the above copyright notice appear in all copies and that both that copyright |
| 11 | * notice and this permission notice appear in supporting documentation, and |
| 12 | * that the name of the copyright holders not be used in advertising or |
| 13 | * publicity pertaining to distribution of the software without specific, |
| 14 | * written prior permission. The copyright holders make no representations |
| 15 | * about the suitability of this software for any purpose. It is provided "as |
| 16 | * is" without express or implied warranty. |
| 17 | * |
| 18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 24 | * OF THIS SOFTWARE. |
| 25 | * |
| 26 | * Authors: |
| 27 | * Dave Airlie <airlied@linux.ie> |
| 28 | * Jesse Barnes <jesse.barnes@intel.com> |
| 29 | */ |
| 30 | #ifndef DRM_FB_HELPER_H |
| 31 | #define DRM_FB_HELPER_H |
| 32 | |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 33 | struct drm_fb_helper; |
| 34 | |
Jesse Barnes | 1a7aba7 | 2010-08-05 09:22:31 -0500 | [diff] [blame] | 35 | #include <linux/kgdb.h> |
| 36 | |
Dave Airlie | b0ee9e7 | 2014-10-20 16:31:53 +1000 | [diff] [blame] | 37 | struct drm_fb_offset { |
| 38 | int x, y; |
| 39 | }; |
| 40 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 41 | struct drm_fb_helper_crtc { |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 42 | struct drm_mode_set mode_set; |
Dave Airlie | 8be48d9 | 2010-03-30 05:34:14 +0000 | [diff] [blame] | 43 | struct drm_display_mode *desired_mode; |
Dave Airlie | b0ee9e7 | 2014-10-20 16:31:53 +1000 | [diff] [blame] | 44 | int x, y; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 45 | }; |
| 46 | |
Dave Airlie | 3865167 | 2010-03-30 05:34:13 +0000 | [diff] [blame] | 47 | struct drm_fb_helper_surface_size { |
| 48 | u32 fb_width; |
| 49 | u32 fb_height; |
| 50 | u32 surface_width; |
| 51 | u32 surface_height; |
| 52 | u32 surface_bpp; |
| 53 | u32 surface_depth; |
| 54 | }; |
| 55 | |
Daniel Vetter | 207fd32 | 2013-01-20 22:13:14 +0100 | [diff] [blame] | 56 | /** |
| 57 | * struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library |
Ville Syrjälä | 7b97936 | 2013-05-08 16:38:34 +0300 | [diff] [blame] | 58 | * @gamma_set: Set the given gamma lut register on the given crtc. |
| 59 | * @gamma_get: Read the given gamma lut register on the given crtc, used to |
| 60 | * save the current lut when force-restoring the fbdev for e.g. |
| 61 | * kdbg. |
| 62 | * @fb_probe: Driver callback to allocate and initialize the fbdev info |
Masanari Iida | e227867 | 2014-02-18 22:54:36 +0900 | [diff] [blame] | 63 | * structure. Furthermore it also needs to allocate the drm |
Ville Syrjälä | 7b97936 | 2013-05-08 16:38:34 +0300 | [diff] [blame] | 64 | * framebuffer used to back the fbdev. |
| 65 | * @initial_config: Setup an initial fbdev display configuration |
Daniel Vetter | 207fd32 | 2013-01-20 22:13:14 +0100 | [diff] [blame] | 66 | * |
| 67 | * Driver callbacks used by the fbdev emulation helper library. |
| 68 | */ |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 69 | struct drm_fb_helper_funcs { |
| 70 | void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, |
| 71 | u16 blue, int regno); |
| 72 | void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green, |
| 73 | u16 *blue, int regno); |
| 74 | |
| 75 | int (*fb_probe)(struct drm_fb_helper *helper, |
| 76 | struct drm_fb_helper_surface_size *sizes); |
Jesse Barnes | 11e17a0 | 2013-02-19 13:31:39 -0800 | [diff] [blame] | 77 | bool (*initial_config)(struct drm_fb_helper *fb_helper, |
| 78 | struct drm_fb_helper_crtc **crtcs, |
| 79 | struct drm_display_mode **modes, |
Dave Airlie | b0ee9e7 | 2014-10-20 16:31:53 +1000 | [diff] [blame] | 80 | struct drm_fb_offset *offsets, |
Jesse Barnes | 11e17a0 | 2013-02-19 13:31:39 -0800 | [diff] [blame] | 81 | bool *enabled, int width, int height); |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 82 | }; |
| 83 | |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 84 | struct drm_fb_helper_connector { |
Dave Airlie | 0b4c0f3 | 2010-03-30 05:34:15 +0000 | [diff] [blame] | 85 | struct drm_connector *connector; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 86 | }; |
| 87 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 88 | struct drm_fb_helper { |
| 89 | struct drm_framebuffer *fb; |
| 90 | struct drm_device *dev; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 91 | int crtc_count; |
| 92 | struct drm_fb_helper_crtc *crtc_info; |
Dave Airlie | 0b4c0f3 | 2010-03-30 05:34:15 +0000 | [diff] [blame] | 93 | int connector_count; |
Dave Airlie | 65c2a89 | 2014-06-05 14:01:30 +1000 | [diff] [blame] | 94 | int connector_info_alloc_count; |
Dave Airlie | 0b4c0f3 | 2010-03-30 05:34:15 +0000 | [diff] [blame] | 95 | struct drm_fb_helper_connector **connector_info; |
Thierry Reding | 3a49387 | 2014-06-27 17:19:23 +0200 | [diff] [blame] | 96 | const struct drm_fb_helper_funcs *funcs; |
Dave Airlie | 3865167 | 2010-03-30 05:34:13 +0000 | [diff] [blame] | 97 | struct fb_info *fbdev; |
| 98 | u32 pseudo_palette[17]; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 99 | struct list_head kernel_fb_list; |
Dave Airlie | 8be48d9 | 2010-03-30 05:34:14 +0000 | [diff] [blame] | 100 | |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 101 | /* we got a hotplug but fbdev wasn't running the console |
| 102 | delay until next set_par */ |
| 103 | bool delayed_hotplug; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 104 | }; |
| 105 | |
Thierry Reding | 10a2310 | 2014-06-27 17:19:24 +0200 | [diff] [blame] | 106 | void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, |
| 107 | const struct drm_fb_helper_funcs *funcs); |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 108 | int drm_fb_helper_init(struct drm_device *dev, |
| 109 | struct drm_fb_helper *helper, int crtc_count, |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 110 | int max_conn); |
Dave Airlie | 4abe352 | 2010-03-30 05:34:18 +0000 | [diff] [blame] | 111 | void drm_fb_helper_fini(struct drm_fb_helper *helper); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 112 | int drm_fb_helper_blank(int blank, struct fb_info *info); |
| 113 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
| 114 | struct fb_info *info); |
| 115 | int drm_fb_helper_set_par(struct fb_info *info); |
| 116 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
| 117 | struct fb_info *info); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 118 | |
Rob Clark | 5ea1f75 | 2014-05-30 12:29:48 -0400 | [diff] [blame] | 119 | bool drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper); |
Dave Airlie | 3865167 | 2010-03-30 05:34:13 +0000 | [diff] [blame] | 120 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 121 | uint32_t fb_width, uint32_t fb_height); |
Dave Airlie | 3632ef8 | 2011-01-15 09:27:00 +1000 | [diff] [blame] | 122 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
| 123 | uint32_t depth); |
| 124 | |
Dave Airlie | 068143d | 2009-10-05 09:58:02 +1000 | [diff] [blame] | 125 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 126 | |
Chris Wilson | 7394371 | 2011-04-22 11:03:57 +0100 | [diff] [blame] | 127 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); |
Thierry Reding | 01934c2 | 2014-12-19 11:21:32 +0100 | [diff] [blame] | 128 | int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); |
Dave Airlie | 0b4c0f3 | 2010-03-30 05:34:15 +0000 | [diff] [blame] | 129 | int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); |
Jesse Barnes | 1a7aba7 | 2010-08-05 09:22:31 -0500 | [diff] [blame] | 130 | int drm_fb_helper_debug_enter(struct fb_info *info); |
| 131 | int drm_fb_helper_debug_leave(struct fb_info *info); |
Jesse Barnes | 2f1046f | 2014-02-12 12:26:24 -0800 | [diff] [blame] | 132 | struct drm_display_mode * |
| 133 | drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, |
| 134 | int width, int height); |
| 135 | struct drm_display_mode * |
| 136 | drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, |
| 137 | int width, int height); |
Dave Airlie | 8be48d9 | 2010-03-30 05:34:14 +0000 | [diff] [blame] | 138 | |
Dave Airlie | 65c2a89 | 2014-06-05 14:01:30 +1000 | [diff] [blame] | 139 | int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector); |
| 140 | int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, |
| 141 | struct drm_connector *connector); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 142 | #endif |