Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006-2008 Intel Corporation |
| 3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| 4 | * |
| 5 | * DRM core CRTC related functions |
| 6 | * |
| 7 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 8 | * documentation for any purpose is hereby granted without fee, provided that |
| 9 | * the above copyright notice appear in all copies and that both that copyright |
| 10 | * notice and this permission notice appear in supporting documentation, and |
| 11 | * that the name of the copyright holders not be used in advertising or |
| 12 | * publicity pertaining to distribution of the software without specific, |
| 13 | * written prior permission. The copyright holders make no representations |
| 14 | * about the suitability of this software for any purpose. It is provided "as |
| 15 | * is" without express or implied warranty. |
| 16 | * |
| 17 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 18 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 19 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 20 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 21 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 22 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 23 | * OF THIS SOFTWARE. |
| 24 | * |
| 25 | * Authors: |
| 26 | * Keith Packard |
| 27 | * Eric Anholt <eric@anholt.net> |
| 28 | * Dave Airlie <airlied@linux.ie> |
| 29 | * Jesse Barnes <jesse.barnes@intel.com> |
| 30 | */ |
| 31 | |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 32 | #include <linux/export.h> |
Paul Gortmaker | 0603ba1 | 2011-08-31 11:29:09 -0400 | [diff] [blame] | 33 | #include <linux/moduleparam.h> |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 34 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 35 | #include <drm/drmP.h> |
| 36 | #include <drm/drm_crtc.h> |
| 37 | #include <drm/drm_fourcc.h> |
| 38 | #include <drm/drm_crtc_helper.h> |
| 39 | #include <drm/drm_fb_helper.h> |
| 40 | #include <drm/drm_edid.h> |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 41 | |
Daniel Vetter | 92b6f89 | 2013-10-08 17:44:47 +0200 | [diff] [blame] | 42 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
| 43 | MODULE_DESCRIPTION("DRM KMS helper"); |
| 44 | MODULE_LICENSE("GPL and additional rights"); |
| 45 | |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 46 | /** |
| 47 | * drm_helper_move_panel_connectors_to_head() - move panels to the front in the |
| 48 | * connector list |
| 49 | * @dev: drm device to operate on |
| 50 | * |
| 51 | * Some userspace presumes that the first connected connector is the main |
| 52 | * display, where it's supposed to display e.g. the login screen. For |
| 53 | * laptops, this should be the main panel. Use this function to sort all |
| 54 | * (eDP/LVDS) panels to the front of the connector list, instead of |
| 55 | * painstakingly trying to initialize them in the right order. |
| 56 | */ |
Daniel Vetter | cfc1a06 | 2012-10-27 15:52:04 +0200 | [diff] [blame] | 57 | void drm_helper_move_panel_connectors_to_head(struct drm_device *dev) |
| 58 | { |
| 59 | struct drm_connector *connector, *tmp; |
| 60 | struct list_head panel_list; |
| 61 | |
| 62 | INIT_LIST_HEAD(&panel_list); |
| 63 | |
| 64 | list_for_each_entry_safe(connector, tmp, |
| 65 | &dev->mode_config.connector_list, head) { |
| 66 | if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS || |
| 67 | connector->connector_type == DRM_MODE_CONNECTOR_eDP) |
| 68 | list_move_tail(&connector->head, &panel_list); |
| 69 | } |
| 70 | |
| 71 | list_splice(&panel_list, &dev->mode_config.connector_list); |
| 72 | } |
| 73 | EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head); |
| 74 | |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 75 | static bool drm_kms_helper_poll = true; |
| 76 | module_param_named(poll, drm_kms_helper_poll, bool, 0600); |
| 77 | |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 78 | static void drm_mode_validate_flag(struct drm_connector *connector, |
| 79 | int flags) |
| 80 | { |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 81 | struct drm_display_mode *mode; |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 82 | |
Damien Lespiau | 560a067 | 2013-09-25 16:45:29 +0100 | [diff] [blame] | 83 | if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE | |
| 84 | DRM_MODE_FLAG_3D_MASK)) |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 85 | return; |
| 86 | |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 87 | list_for_each_entry(mode, &connector->modes, head) { |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 88 | if ((mode->flags & DRM_MODE_FLAG_INTERLACE) && |
| 89 | !(flags & DRM_MODE_FLAG_INTERLACE)) |
| 90 | mode->status = MODE_NO_INTERLACE; |
| 91 | if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) && |
| 92 | !(flags & DRM_MODE_FLAG_DBLSCAN)) |
| 93 | mode->status = MODE_NO_DBLESCAN; |
Damien Lespiau | 560a067 | 2013-09-25 16:45:29 +0100 | [diff] [blame] | 94 | if ((mode->flags & DRM_MODE_FLAG_3D_MASK) && |
| 95 | !(flags & DRM_MODE_FLAG_3D_MASK)) |
| 96 | mode->status = MODE_NO_STEREO; |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | return; |
| 100 | } |
| 101 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 102 | /** |
Dave Airlie | 3865167 | 2010-03-30 05:34:13 +0000 | [diff] [blame] | 103 | * drm_helper_probe_single_connector_modes - get complete set of display modes |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 104 | * @connector: connector to probe |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 105 | * @maxX: max width for modes |
| 106 | * @maxY: max height for modes |
| 107 | * |
| 108 | * LOCKING: |
| 109 | * Caller must hold mode config lock. |
| 110 | * |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 111 | * Based on the helper callbacks implemented by @connector try to detect all |
| 112 | * valid modes. Modes will first be added to the connector's probed_modes list, |
| 113 | * then culled (based on validity and the @maxX, @maxY parameters) and put into |
| 114 | * the normal modes list. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 115 | * |
Lespiau, Damien | 1eee814 | 2013-09-23 14:48:09 +0100 | [diff] [blame] | 116 | * Intended to be use as a generic implementation of the ->fill_modes() |
| 117 | * @connector vfunc for drivers that use the crtc helpers for output mode |
| 118 | * filtering and detection. |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 119 | * |
| 120 | * RETURNS: |
| 121 | * Number of modes found on @connector. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 122 | */ |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 123 | int drm_helper_probe_single_connector_modes(struct drm_connector *connector, |
| 124 | uint32_t maxX, uint32_t maxY) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 125 | { |
| 126 | struct drm_device *dev = connector->dev; |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 127 | struct drm_display_mode *mode; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 128 | struct drm_connector_helper_funcs *connector_funcs = |
| 129 | connector->helper_private; |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 130 | int count = 0; |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 131 | int mode_flags = 0; |
Damien Lespiau | ebbd97a | 2013-05-08 17:03:32 +0100 | [diff] [blame] | 132 | bool verbose_prune = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 133 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 134 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, |
| 135 | drm_get_connector_name(connector)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 136 | /* set all modes to the unverified state */ |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 137 | list_for_each_entry(mode, &connector->modes, head) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 138 | mode->status = MODE_UNVERIFIED; |
| 139 | |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 140 | if (connector->force) { |
| 141 | if (connector->force == DRM_FORCE_ON) |
| 142 | connector->status = connector_status_connected; |
| 143 | else |
| 144 | connector->status = connector_status_disconnected; |
| 145 | if (connector->funcs->force) |
| 146 | connector->funcs->force(connector); |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 147 | } else { |
Chris Wilson | 930a9e2 | 2010-09-14 11:07:23 +0100 | [diff] [blame] | 148 | connector->status = connector->funcs->detect(connector, true); |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 149 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 150 | |
Daniel Vetter | 905bc9f | 2012-10-23 18:23:36 +0000 | [diff] [blame] | 151 | /* Re-enable polling in case the global poll config changed. */ |
| 152 | if (drm_kms_helper_poll != dev->mode_config.poll_running) |
| 153 | drm_kms_helper_poll_enable(dev); |
| 154 | |
| 155 | dev->mode_config.poll_running = drm_kms_helper_poll; |
| 156 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 157 | if (connector->status == connector_status_disconnected) { |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 158 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n", |
| 159 | connector->base.id, drm_get_connector_name(connector)); |
Zhao Yakui | 7253983 | 2010-03-04 08:25:55 +0000 | [diff] [blame] | 160 | drm_mode_connector_update_edid_property(connector, NULL); |
Damien Lespiau | ebbd97a | 2013-05-08 17:03:32 +0100 | [diff] [blame] | 161 | verbose_prune = false; |
Adam Jackson | 620f378 | 2009-09-08 11:51:46 +1000 | [diff] [blame] | 162 | goto prune; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 163 | } |
| 164 | |
Carsten Emde | da0df92 | 2012-03-18 22:37:33 +0100 | [diff] [blame] | 165 | #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE |
| 166 | count = drm_load_edid_firmware(connector); |
| 167 | if (count == 0) |
| 168 | #endif |
| 169 | count = (*connector_funcs->get_modes)(connector); |
| 170 | |
Chris Wilson | c7ef35a | 2010-09-05 16:55:25 +0100 | [diff] [blame] | 171 | if (count == 0 && connector->status == connector_status_connected) |
Adam Jackson | 9632b41 | 2009-11-23 14:23:07 -0500 | [diff] [blame] | 172 | count = drm_add_modes_noedid(connector, 1024, 768); |
Chris Wilson | c7ef35a | 2010-09-05 16:55:25 +0100 | [diff] [blame] | 173 | if (count == 0) |
| 174 | goto prune; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 175 | |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 176 | drm_mode_connector_list_update(connector); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 177 | |
| 178 | if (maxX && maxY) |
Daniel Vetter | 3e70292 | 2014-01-23 16:39:31 +0100 | [diff] [blame] | 179 | drm_mode_validate_size(dev, &connector->modes, maxX, maxY); |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 180 | |
| 181 | if (connector->interlace_allowed) |
| 182 | mode_flags |= DRM_MODE_FLAG_INTERLACE; |
| 183 | if (connector->doublescan_allowed) |
| 184 | mode_flags |= DRM_MODE_FLAG_DBLSCAN; |
Damien Lespiau | 560a067 | 2013-09-25 16:45:29 +0100 | [diff] [blame] | 185 | if (connector->stereo_allowed) |
| 186 | mode_flags |= DRM_MODE_FLAG_3D_MASK; |
yakui_zhao | 6714977 | 2009-04-02 11:52:12 +0800 | [diff] [blame] | 187 | drm_mode_validate_flag(connector, mode_flags); |
| 188 | |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 189 | list_for_each_entry(mode, &connector->modes, head) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 190 | if (mode->status == MODE_OK) |
| 191 | mode->status = connector_funcs->mode_valid(connector, |
| 192 | mode); |
| 193 | } |
| 194 | |
Adam Jackson | 620f378 | 2009-09-08 11:51:46 +1000 | [diff] [blame] | 195 | prune: |
Damien Lespiau | ebbd97a | 2013-05-08 17:03:32 +0100 | [diff] [blame] | 196 | drm_mode_prune_invalid(dev, &connector->modes, verbose_prune); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 197 | |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 198 | if (list_empty(&connector->modes)) |
| 199 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 200 | |
Ville Syrjälä | 9bc3cd5 | 2013-05-31 12:17:08 +0000 | [diff] [blame] | 201 | list_for_each_entry(mode, &connector->modes, head) |
| 202 | mode->vrefresh = drm_mode_vrefresh(mode); |
| 203 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 204 | drm_mode_sort(&connector->modes); |
| 205 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 206 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id, |
| 207 | drm_get_connector_name(connector)); |
Sascha Hauer | a1178ca | 2012-02-01 11:38:30 +0100 | [diff] [blame] | 208 | list_for_each_entry(mode, &connector->modes, head) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 209 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
| 210 | drm_mode_debug_printmodeline(mode); |
| 211 | } |
Jesse Barnes | 40a518d | 2009-01-12 12:05:32 -0800 | [diff] [blame] | 212 | |
| 213 | return count; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 214 | } |
| 215 | EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); |
| 216 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 217 | /** |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 218 | * drm_helper_encoder_in_use - check if a given encoder is in use |
| 219 | * @encoder: encoder to check |
| 220 | * |
| 221 | * LOCKING: |
| 222 | * Caller must hold mode config lock. |
| 223 | * |
| 224 | * Walk @encoders's DRM device's mode_config and see if it's in use. |
| 225 | * |
| 226 | * RETURNS: |
| 227 | * True if @encoder is part of the mode_config, false otherwise. |
| 228 | */ |
| 229 | bool drm_helper_encoder_in_use(struct drm_encoder *encoder) |
| 230 | { |
| 231 | struct drm_connector *connector; |
| 232 | struct drm_device *dev = encoder->dev; |
| 233 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
| 234 | if (connector->encoder == encoder) |
| 235 | return true; |
| 236 | return false; |
| 237 | } |
| 238 | EXPORT_SYMBOL(drm_helper_encoder_in_use); |
| 239 | |
| 240 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 241 | * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config |
| 242 | * @crtc: CRTC to check |
| 243 | * |
| 244 | * LOCKING: |
| 245 | * Caller must hold mode config lock. |
| 246 | * |
| 247 | * Walk @crtc's DRM device's mode_config and see if it's in use. |
| 248 | * |
| 249 | * RETURNS: |
| 250 | * True if @crtc is part of the mode_config, false otherwise. |
| 251 | */ |
| 252 | bool drm_helper_crtc_in_use(struct drm_crtc *crtc) |
| 253 | { |
| 254 | struct drm_encoder *encoder; |
| 255 | struct drm_device *dev = crtc->dev; |
| 256 | /* FIXME: Locking around list access? */ |
| 257 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 258 | if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 259 | return true; |
| 260 | return false; |
| 261 | } |
| 262 | EXPORT_SYMBOL(drm_helper_crtc_in_use); |
| 263 | |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 264 | static void |
| 265 | drm_encoder_disable(struct drm_encoder *encoder) |
| 266 | { |
| 267 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; |
| 268 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 269 | if (encoder->bridge) |
| 270 | encoder->bridge->funcs->disable(encoder->bridge); |
| 271 | |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 272 | if (encoder_funcs->disable) |
| 273 | (*encoder_funcs->disable)(encoder); |
| 274 | else |
| 275 | (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 276 | |
| 277 | if (encoder->bridge) |
| 278 | encoder->bridge->funcs->post_disable(encoder->bridge); |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 279 | } |
| 280 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 281 | /** |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 282 | * drm_helper_disable_unused_functions - disable unused objects |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 283 | * @dev: DRM device |
| 284 | * |
| 285 | * LOCKING: |
| 286 | * Caller must hold mode config lock. |
| 287 | * |
| 288 | * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled |
| 289 | * by calling its dpms function, which should power it off. |
| 290 | */ |
| 291 | void drm_helper_disable_unused_functions(struct drm_device *dev) |
| 292 | { |
| 293 | struct drm_encoder *encoder; |
Dave Airlie | a3a0544 | 2009-08-31 15:16:30 +1000 | [diff] [blame] | 294 | struct drm_connector *connector; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 295 | struct drm_crtc *crtc; |
| 296 | |
Dave Airlie | a3a0544 | 2009-08-31 15:16:30 +1000 | [diff] [blame] | 297 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 298 | if (!connector->encoder) |
| 299 | continue; |
| 300 | if (connector->status == connector_status_disconnected) |
| 301 | connector->encoder = NULL; |
| 302 | } |
| 303 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 304 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
Dave Airlie | 92971021 | 2010-12-21 12:47:56 +1000 | [diff] [blame] | 305 | if (!drm_helper_encoder_in_use(encoder)) { |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 306 | drm_encoder_disable(encoder); |
Dave Airlie | 9c552dd | 2009-09-02 14:00:11 +1000 | [diff] [blame] | 307 | /* disconnector encoder from any connector */ |
| 308 | encoder->crtc = NULL; |
Dave Airlie | a3a0544 | 2009-08-31 15:16:30 +1000 | [diff] [blame] | 309 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 313 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 314 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
| 315 | if (!crtc->enabled) { |
Alex Deucher | 5c8d717 | 2010-06-11 17:04:35 -0400 | [diff] [blame] | 316 | if (crtc_funcs->disable) |
| 317 | (*crtc_funcs->disable)(crtc); |
| 318 | else |
| 319 | (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 320 | crtc->fb = NULL; |
| 321 | } |
| 322 | } |
| 323 | } |
| 324 | EXPORT_SYMBOL(drm_helper_disable_unused_functions); |
| 325 | |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 326 | /* |
| 327 | * Check the CRTC we're going to map each output to vs. its current |
| 328 | * CRTC. If they don't match, we have to disable the output and the CRTC |
| 329 | * since the driver will have to re-route things. |
| 330 | */ |
| 331 | static void |
| 332 | drm_crtc_prepare_encoders(struct drm_device *dev) |
| 333 | { |
| 334 | struct drm_encoder_helper_funcs *encoder_funcs; |
| 335 | struct drm_encoder *encoder; |
| 336 | |
| 337 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 338 | encoder_funcs = encoder->helper_private; |
| 339 | /* Disable unused encoders */ |
| 340 | if (encoder->crtc == NULL) |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 341 | drm_encoder_disable(encoder); |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 342 | /* Disable encoders whose CRTC is about to change */ |
| 343 | if (encoder_funcs->get_crtc && |
| 344 | encoder->crtc != (*encoder_funcs->get_crtc)(encoder)) |
Ben Skeggs | 86a1b9d | 2010-07-01 16:49:57 +1000 | [diff] [blame] | 345 | drm_encoder_disable(encoder); |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 346 | } |
| 347 | } |
| 348 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 349 | /** |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 350 | * drm_crtc_helper_set_mode - internal helper to set a mode |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 351 | * @crtc: CRTC to program |
| 352 | * @mode: mode to use |
Alex Deucher | 4c9287c | 2012-11-09 17:26:32 +0000 | [diff] [blame] | 353 | * @x: horizontal offset into the surface |
| 354 | * @y: vertical offset into the surface |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 355 | * @old_fb: old framebuffer, for cleanup |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 356 | * |
| 357 | * LOCKING: |
| 358 | * Caller must hold mode config lock. |
| 359 | * |
| 360 | * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 361 | * to fixup or reject the mode prior to trying to set it. This is an internal |
| 362 | * helper that drivers could e.g. use to update properties that require the |
| 363 | * entire output pipe to be disabled and re-enabled in a new configuration. For |
| 364 | * example for changing whether audio is enabled on a hdmi link or for changing |
| 365 | * panel fitter or dither attributes. It is also called by the |
| 366 | * drm_crtc_helper_set_config() helper function to drive the mode setting |
| 367 | * sequence. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 368 | * |
| 369 | * RETURNS: |
| 370 | * True if the mode was set successfully, or false otherwise. |
| 371 | */ |
| 372 | bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, |
| 373 | struct drm_display_mode *mode, |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 374 | int x, int y, |
| 375 | struct drm_framebuffer *old_fb) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 376 | { |
| 377 | struct drm_device *dev = crtc->dev; |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 378 | struct drm_display_mode *adjusted_mode, saved_mode; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 379 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 380 | struct drm_encoder_helper_funcs *encoder_funcs; |
| 381 | int saved_x, saved_y; |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 382 | bool saved_enabled; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 383 | struct drm_encoder *encoder; |
| 384 | bool ret = true; |
| 385 | |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 386 | saved_enabled = crtc->enabled; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 387 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 388 | if (!crtc->enabled) |
| 389 | return true; |
| 390 | |
Chris Wilson | 021a845 | 2011-01-28 11:31:56 +0000 | [diff] [blame] | 391 | adjusted_mode = drm_mode_duplicate(dev, mode); |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 392 | if (!adjusted_mode) { |
| 393 | crtc->enabled = saved_enabled; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 394 | return false; |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 395 | } |
Chris Wilson | 021a845 | 2011-01-28 11:31:56 +0000 | [diff] [blame] | 396 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 397 | saved_mode = crtc->mode; |
| 398 | saved_x = crtc->x; |
| 399 | saved_y = crtc->y; |
| 400 | |
| 401 | /* Update crtc values up front so the driver can rely on them for mode |
| 402 | * setting. |
| 403 | */ |
| 404 | crtc->mode = *mode; |
| 405 | crtc->x = x; |
| 406 | crtc->y = y; |
| 407 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 408 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
| 409 | * adjust it according to limitations or connector properties, and also |
| 410 | * a chance to reject the mode entirely. |
| 411 | */ |
| 412 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 413 | |
| 414 | if (encoder->crtc != crtc) |
| 415 | continue; |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 416 | |
| 417 | if (encoder->bridge && encoder->bridge->funcs->mode_fixup) { |
| 418 | ret = encoder->bridge->funcs->mode_fixup( |
| 419 | encoder->bridge, mode, adjusted_mode); |
| 420 | if (!ret) { |
| 421 | DRM_DEBUG_KMS("Bridge fixup failed\n"); |
| 422 | goto done; |
| 423 | } |
| 424 | } |
| 425 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 426 | encoder_funcs = encoder->helper_private; |
| 427 | if (!(ret = encoder_funcs->mode_fixup(encoder, mode, |
| 428 | adjusted_mode))) { |
Adam Jackson | 836e53d | 2011-10-10 16:21:27 -0400 | [diff] [blame] | 429 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 430 | goto done; |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) { |
Adam Jackson | 836e53d | 2011-10-10 16:21:27 -0400 | [diff] [blame] | 435 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 436 | goto done; |
| 437 | } |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 438 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 439 | |
| 440 | /* Prepare the encoders and CRTCs before setting the mode. */ |
| 441 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 442 | |
| 443 | if (encoder->crtc != crtc) |
| 444 | continue; |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 445 | |
| 446 | if (encoder->bridge) |
| 447 | encoder->bridge->funcs->disable(encoder->bridge); |
| 448 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 449 | encoder_funcs = encoder->helper_private; |
| 450 | /* Disable the encoders as the first thing we do. */ |
| 451 | encoder_funcs->prepare(encoder); |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 452 | |
| 453 | if (encoder->bridge) |
| 454 | encoder->bridge->funcs->post_disable(encoder->bridge); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 455 | } |
| 456 | |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 457 | drm_crtc_prepare_encoders(dev); |
| 458 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 459 | crtc_funcs->prepare(crtc); |
| 460 | |
| 461 | /* Set up the DPLL and any encoders state that needs to adjust or depend |
| 462 | * on the DPLL. |
| 463 | */ |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 464 | ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb); |
| 465 | if (!ret) |
| 466 | goto done; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 467 | |
| 468 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 469 | |
| 470 | if (encoder->crtc != crtc) |
| 471 | continue; |
| 472 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 473 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
| 474 | encoder->base.id, drm_get_encoder_name(encoder), |
| 475 | mode->base.id, mode->name); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 476 | encoder_funcs = encoder->helper_private; |
| 477 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 478 | |
| 479 | if (encoder->bridge && encoder->bridge->funcs->mode_set) |
| 480 | encoder->bridge->funcs->mode_set(encoder->bridge, mode, |
| 481 | adjusted_mode); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 482 | } |
| 483 | |
| 484 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ |
| 485 | crtc_funcs->commit(crtc); |
| 486 | |
| 487 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 488 | |
| 489 | if (encoder->crtc != crtc) |
| 490 | continue; |
| 491 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 492 | if (encoder->bridge) |
| 493 | encoder->bridge->funcs->pre_enable(encoder->bridge); |
| 494 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 495 | encoder_funcs = encoder->helper_private; |
| 496 | encoder_funcs->commit(encoder); |
| 497 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 498 | if (encoder->bridge) |
| 499 | encoder->bridge->funcs->enable(encoder->bridge); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 500 | } |
| 501 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 502 | /* Store real post-adjustment hardware mode. */ |
| 503 | crtc->hwmode = *adjusted_mode; |
| 504 | |
| 505 | /* Calculate and store various constants which |
| 506 | * are later needed by vblank and swap-completion |
| 507 | * timestamping. They are derived from true hwmode. |
| 508 | */ |
Ville Syrjälä | 545cdd5 | 2013-10-26 17:16:30 +0300 | [diff] [blame] | 509 | drm_calc_timestamping_constants(crtc, &crtc->hwmode); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 510 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 511 | /* FIXME: add subpixel order */ |
| 512 | done: |
Chris Wilson | 021a845 | 2011-01-28 11:31:56 +0000 | [diff] [blame] | 513 | drm_mode_destroy(dev, adjusted_mode); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 514 | if (!ret) { |
Ilija Hadzic | 7e99acd | 2013-10-29 11:09:44 -0400 | [diff] [blame] | 515 | crtc->enabled = saved_enabled; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 516 | crtc->mode = saved_mode; |
| 517 | crtc->x = saved_x; |
| 518 | crtc->y = saved_y; |
| 519 | } |
| 520 | |
| 521 | return ret; |
| 522 | } |
| 523 | EXPORT_SYMBOL(drm_crtc_helper_set_mode); |
| 524 | |
| 525 | |
Chris Wilson | 6eebd6b | 2011-11-28 21:10:05 +0000 | [diff] [blame] | 526 | static int |
| 527 | drm_crtc_helper_disable(struct drm_crtc *crtc) |
| 528 | { |
| 529 | struct drm_device *dev = crtc->dev; |
| 530 | struct drm_connector *connector; |
| 531 | struct drm_encoder *encoder; |
| 532 | |
| 533 | /* Decouple all encoders and their attached connectors from this crtc */ |
| 534 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 535 | if (encoder->crtc != crtc) |
| 536 | continue; |
| 537 | |
| 538 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 539 | if (connector->encoder != encoder) |
| 540 | continue; |
| 541 | |
| 542 | connector->encoder = NULL; |
Thierry Reding | a6ad623 | 2013-10-02 15:50:06 +0200 | [diff] [blame] | 543 | |
| 544 | /* |
| 545 | * drm_helper_disable_unused_functions() ought to be |
| 546 | * doing this, but since we've decoupled the encoder |
| 547 | * from the connector above, the required connection |
| 548 | * between them is henceforth no longer available. |
| 549 | */ |
| 550 | connector->dpms = DRM_MODE_DPMS_OFF; |
Chris Wilson | 6eebd6b | 2011-11-28 21:10:05 +0000 | [diff] [blame] | 551 | } |
| 552 | } |
| 553 | |
| 554 | drm_helper_disable_unused_functions(dev); |
| 555 | return 0; |
| 556 | } |
| 557 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 558 | /** |
| 559 | * drm_crtc_helper_set_config - set a new config from userspace |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 560 | * @set: mode set configuration |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 561 | * |
| 562 | * LOCKING: |
| 563 | * Caller must hold mode config lock. |
| 564 | * |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 565 | * Setup a new configuration, provided by the upper layers (either an ioctl call |
| 566 | * from userspace or internally e.g. from the fbdev suppport code) in @set, and |
| 567 | * enable it. This is the main helper functions for drivers that implement |
| 568 | * kernel mode setting with the crtc helper functions and the assorted |
| 569 | * ->prepare(), ->modeset() and ->commit() helper callbacks. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 570 | * |
| 571 | * RETURNS: |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 572 | * Returns 0 on success, -ERRNO on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 573 | */ |
| 574 | int drm_crtc_helper_set_config(struct drm_mode_set *set) |
| 575 | { |
| 576 | struct drm_device *dev; |
Ilija Hadzic | 02ee4e9 | 2013-10-29 11:09:46 -0400 | [diff] [blame] | 577 | struct drm_crtc *new_crtc; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 578 | struct drm_encoder *save_encoders, *new_encoder, *encoder; |
Jakob Bornecrantz | 4cb72b1 | 2009-08-03 13:43:59 +0100 | [diff] [blame] | 579 | bool mode_changed = false; /* if true do a full mode set */ |
| 580 | bool fb_changed = false; /* if true and !mode_changed just do a flip */ |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 581 | struct drm_connector *save_connectors, *connector; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 582 | int count = 0, ro, fail = 0; |
| 583 | struct drm_crtc_helper_funcs *crtc_funcs; |
Jesse Barnes | c5006cfe | 2011-11-07 10:39:57 -0800 | [diff] [blame] | 584 | struct drm_mode_set save_set; |
Laurent Pinchart | 4a1b071 | 2012-05-17 13:27:21 +0200 | [diff] [blame] | 585 | int ret; |
Keith Packard | bf9dc10 | 2010-11-26 10:45:58 -0800 | [diff] [blame] | 586 | int i; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 587 | |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 588 | DRM_DEBUG_KMS("\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 589 | |
Daniel Vetter | e58de88 | 2013-06-15 00:13:11 +0200 | [diff] [blame] | 590 | BUG_ON(!set); |
| 591 | BUG_ON(!set->crtc); |
| 592 | BUG_ON(!set->crtc->helper_private); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 593 | |
Daniel Vetter | e58de88 | 2013-06-15 00:13:11 +0200 | [diff] [blame] | 594 | /* Enforce sane interface api - has been abused by the fb helper. */ |
| 595 | BUG_ON(!set->mode && set->fb); |
| 596 | BUG_ON(set->fb && set->num_connectors == 0); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 597 | |
| 598 | crtc_funcs = set->crtc->helper_private; |
| 599 | |
Chris Wilson | ede3ff5 | 2011-01-31 11:16:33 +0000 | [diff] [blame] | 600 | if (!set->mode) |
| 601 | set->fb = NULL; |
| 602 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 603 | if (set->fb) { |
| 604 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", |
| 605 | set->crtc->base.id, set->fb->base.id, |
| 606 | (int)set->num_connectors, set->x, set->y); |
| 607 | } else { |
Chris Wilson | ede3ff5 | 2011-01-31 11:16:33 +0000 | [diff] [blame] | 608 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); |
Chris Wilson | 6eebd6b | 2011-11-28 21:10:05 +0000 | [diff] [blame] | 609 | return drm_crtc_helper_disable(set->crtc); |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 610 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 611 | |
| 612 | dev = set->crtc->dev; |
| 613 | |
Ilija Hadzic | 02ee4e9 | 2013-10-29 11:09:46 -0400 | [diff] [blame] | 614 | /* |
| 615 | * Allocate space for the backup of all (non-pointer) encoder and |
| 616 | * connector data. |
| 617 | */ |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 618 | save_encoders = kzalloc(dev->mode_config.num_encoder * |
| 619 | sizeof(struct drm_encoder), GFP_KERNEL); |
Ilija Hadzic | 02ee4e9 | 2013-10-29 11:09:46 -0400 | [diff] [blame] | 620 | if (!save_encoders) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 621 | return -ENOMEM; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 622 | |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 623 | save_connectors = kzalloc(dev->mode_config.num_connector * |
| 624 | sizeof(struct drm_connector), GFP_KERNEL); |
| 625 | if (!save_connectors) { |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 626 | kfree(save_encoders); |
| 627 | return -ENOMEM; |
| 628 | } |
| 629 | |
Ilija Hadzic | 02ee4e9 | 2013-10-29 11:09:46 -0400 | [diff] [blame] | 630 | /* |
| 631 | * Copy data. Note that driver private data is not affected. |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 632 | * Should anything bad happen only the expected state is |
| 633 | * restored, not the drivers personal bookkeeping. |
| 634 | */ |
| 635 | count = 0; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 636 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 637 | save_encoders[count++] = *encoder; |
| 638 | } |
| 639 | |
| 640 | count = 0; |
| 641 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 642 | save_connectors[count++] = *connector; |
| 643 | } |
| 644 | |
Jesse Barnes | c5006cfe | 2011-11-07 10:39:57 -0800 | [diff] [blame] | 645 | save_set.crtc = set->crtc; |
| 646 | save_set.mode = &set->crtc->mode; |
| 647 | save_set.x = set->crtc->x; |
| 648 | save_set.y = set->crtc->y; |
| 649 | save_set.fb = set->crtc->fb; |
| 650 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 651 | /* We should be able to check here if the fb has the same properties |
| 652 | * and then just flip_or_move it */ |
| 653 | if (set->crtc->fb != set->fb) { |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 654 | /* If we have no fb then treat it as a full mode set */ |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 655 | if (set->crtc->fb == NULL) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 656 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 657 | mode_changed = true; |
Jakob Bornecrantz | 4cb72b1 | 2009-08-03 13:43:59 +0100 | [diff] [blame] | 658 | } else if (set->fb == NULL) { |
| 659 | mode_changed = true; |
Laurent Pinchart | ce83adf | 2013-04-22 01:38:47 +0200 | [diff] [blame] | 660 | } else if (set->fb->pixel_format != |
| 661 | set->crtc->fb->pixel_format) { |
| 662 | mode_changed = true; |
Dave Airlie | 8dff474 | 2010-02-11 14:28:58 +1000 | [diff] [blame] | 663 | } else |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 664 | fb_changed = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | if (set->x != set->crtc->x || set->y != set->crtc->y) |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 668 | fb_changed = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 669 | |
| 670 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 671 | DRM_DEBUG_KMS("modes are different, full mode set\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 672 | drm_mode_debug_printmodeline(&set->crtc->mode); |
| 673 | drm_mode_debug_printmodeline(set->mode); |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 674 | mode_changed = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 675 | } |
| 676 | |
| 677 | /* a) traverse passed in connector list and get encoders for them */ |
| 678 | count = 0; |
| 679 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 680 | struct drm_connector_helper_funcs *connector_funcs = |
| 681 | connector->helper_private; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 682 | new_encoder = connector->encoder; |
| 683 | for (ro = 0; ro < set->num_connectors; ro++) { |
| 684 | if (set->connectors[ro] == connector) { |
| 685 | new_encoder = connector_funcs->best_encoder(connector); |
| 686 | /* if we can't get an encoder for a connector |
| 687 | we are setting now - then fail */ |
| 688 | if (new_encoder == NULL) |
| 689 | /* don't break so fail path works correct */ |
| 690 | fail = 1; |
| 691 | break; |
Daniel Vetter | 25f397a | 2013-07-19 18:57:11 +0200 | [diff] [blame] | 692 | |
| 693 | if (connector->dpms != DRM_MODE_DPMS_ON) { |
| 694 | DRM_DEBUG_KMS("connector dpms not on, full mode switch\n"); |
| 695 | mode_changed = true; |
| 696 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 697 | } |
| 698 | } |
| 699 | |
| 700 | if (new_encoder != connector->encoder) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 701 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 702 | mode_changed = true; |
Maarten Maathuis | ff846ab | 2009-08-19 00:56:45 +0200 | [diff] [blame] | 703 | /* If the encoder is reused for another connector, then |
| 704 | * the appropriate crtc will be set later. |
| 705 | */ |
Maarten Maathuis | ff6fdbe | 2009-09-01 03:39:04 +0200 | [diff] [blame] | 706 | if (connector->encoder) |
| 707 | connector->encoder->crtc = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 708 | connector->encoder = new_encoder; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | if (fail) { |
| 713 | ret = -EINVAL; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 714 | goto fail; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | count = 0; |
| 718 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 719 | if (!connector->encoder) |
| 720 | continue; |
| 721 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 722 | if (connector->encoder->crtc == set->crtc) |
| 723 | new_crtc = NULL; |
| 724 | else |
| 725 | new_crtc = connector->encoder->crtc; |
| 726 | |
| 727 | for (ro = 0; ro < set->num_connectors; ro++) { |
| 728 | if (set->connectors[ro] == connector) |
| 729 | new_crtc = set->crtc; |
| 730 | } |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 731 | |
| 732 | /* Make sure the new CRTC will work with the encoder */ |
| 733 | if (new_crtc && |
| 734 | !drm_encoder_crtc_ok(connector->encoder, new_crtc)) { |
| 735 | ret = -EINVAL; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 736 | goto fail; |
Jesse Barnes | 7bec756 | 2009-02-23 16:09:34 -0800 | [diff] [blame] | 737 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 738 | if (new_crtc != connector->encoder->crtc) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 739 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 740 | mode_changed = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 741 | connector->encoder->crtc = new_crtc; |
| 742 | } |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 743 | if (new_crtc) { |
| 744 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", |
| 745 | connector->base.id, drm_get_connector_name(connector), |
| 746 | new_crtc->base.id); |
| 747 | } else { |
| 748 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", |
| 749 | connector->base.id, drm_get_connector_name(connector)); |
| 750 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | /* mode_set_base is not a required function */ |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 754 | if (fb_changed && !crtc_funcs->mode_set_base) |
| 755 | mode_changed = true; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 756 | |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 757 | if (mode_changed) { |
Ilija Hadzic | 48b1f5d | 2013-10-29 11:09:45 -0400 | [diff] [blame] | 758 | if (drm_helper_crtc_in_use(set->crtc)) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 759 | DRM_DEBUG_KMS("attempting to set mode from" |
| 760 | " userspace\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 761 | drm_mode_debug_printmodeline(set->mode); |
Chris Wilson | 356ad3c | 2010-09-09 09:41:32 +0100 | [diff] [blame] | 762 | set->crtc->fb = set->fb; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 763 | if (!drm_crtc_helper_set_mode(set->crtc, set->mode, |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 764 | set->x, set->y, |
Ilija Hadzic | bec2eac | 2013-10-29 11:09:42 -0400 | [diff] [blame] | 765 | save_set.fb)) { |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 766 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", |
| 767 | set->crtc->base.id); |
Ilija Hadzic | bec2eac | 2013-10-29 11:09:42 -0400 | [diff] [blame] | 768 | set->crtc->fb = save_set.fb; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 769 | ret = -EINVAL; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 770 | goto fail; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 771 | } |
Daniel Vetter | 25f397a | 2013-07-19 18:57:11 +0200 | [diff] [blame] | 772 | DRM_DEBUG_KMS("Setting connector DPMS state to on\n"); |
| 773 | for (i = 0; i < set->num_connectors; i++) { |
| 774 | DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, |
| 775 | drm_get_connector_name(set->connectors[i])); |
| 776 | set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON); |
| 777 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 778 | } |
| 779 | drm_helper_disable_unused_functions(dev); |
Jesse Barnes | 712531b | 2009-01-09 13:56:14 -0800 | [diff] [blame] | 780 | } else if (fb_changed) { |
Ben Skeggs | 9b1596a | 2009-09-18 10:43:52 +1000 | [diff] [blame] | 781 | set->crtc->x = set->x; |
| 782 | set->crtc->y = set->y; |
Ilija Hadzic | fc50a89 | 2013-10-29 11:09:41 -0400 | [diff] [blame] | 783 | set->crtc->fb = set->fb; |
Chris Wilson | 5c3b82e | 2009-02-11 13:25:09 +0000 | [diff] [blame] | 784 | ret = crtc_funcs->mode_set_base(set->crtc, |
Ilija Hadzic | bec2eac | 2013-10-29 11:09:42 -0400 | [diff] [blame] | 785 | set->x, set->y, save_set.fb); |
Chris Wilson | 0ba41e4 | 2011-01-08 15:10:41 +0000 | [diff] [blame] | 786 | if (ret != 0) { |
Ilija Hadzic | fbce406 | 2013-10-29 11:09:43 -0400 | [diff] [blame] | 787 | set->crtc->x = save_set.x; |
| 788 | set->crtc->y = save_set.y; |
Ilija Hadzic | bec2eac | 2013-10-29 11:09:42 -0400 | [diff] [blame] | 789 | set->crtc->fb = save_set.fb; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 790 | goto fail; |
Chris Wilson | 0ba41e4 | 2011-01-08 15:10:41 +0000 | [diff] [blame] | 791 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 792 | } |
| 793 | |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 794 | kfree(save_connectors); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 795 | kfree(save_encoders); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 796 | return 0; |
| 797 | |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 798 | fail: |
| 799 | /* Restore all previous data. */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 800 | count = 0; |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 801 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 802 | *encoder = save_encoders[count++]; |
Chris Wilson | e62fb64 | 2009-02-11 16:39:21 +0000 | [diff] [blame] | 803 | } |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 804 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 805 | count = 0; |
| 806 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 807 | *connector = save_connectors[count++]; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 808 | } |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 809 | |
Jesse Barnes | c5006cfe | 2011-11-07 10:39:57 -0800 | [diff] [blame] | 810 | /* Try to restore the config */ |
| 811 | if (mode_changed && |
| 812 | !drm_crtc_helper_set_mode(save_set.crtc, save_set.mode, save_set.x, |
| 813 | save_set.y, save_set.fb)) |
| 814 | DRM_ERROR("failed to restore config after modeset failure\n"); |
| 815 | |
Maarten Maathuis | e67aae7 | 2009-08-27 10:18:29 +0200 | [diff] [blame] | 816 | kfree(save_connectors); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 817 | kfree(save_encoders); |
| 818 | return ret; |
| 819 | } |
| 820 | EXPORT_SYMBOL(drm_crtc_helper_set_config); |
| 821 | |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 822 | static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder) |
| 823 | { |
| 824 | int dpms = DRM_MODE_DPMS_OFF; |
| 825 | struct drm_connector *connector; |
| 826 | struct drm_device *dev = encoder->dev; |
| 827 | |
| 828 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
| 829 | if (connector->encoder == encoder) |
| 830 | if (connector->dpms < dpms) |
| 831 | dpms = connector->dpms; |
| 832 | return dpms; |
| 833 | } |
| 834 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 835 | /* Helper which handles bridge ordering around encoder dpms */ |
| 836 | static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode) |
| 837 | { |
| 838 | struct drm_bridge *bridge = encoder->bridge; |
| 839 | struct drm_encoder_helper_funcs *encoder_funcs; |
| 840 | |
| 841 | if (bridge) { |
| 842 | if (mode == DRM_MODE_DPMS_ON) |
| 843 | bridge->funcs->pre_enable(bridge); |
| 844 | else |
| 845 | bridge->funcs->disable(bridge); |
| 846 | } |
| 847 | |
| 848 | encoder_funcs = encoder->helper_private; |
| 849 | if (encoder_funcs->dpms) |
| 850 | encoder_funcs->dpms(encoder, mode); |
| 851 | |
| 852 | if (bridge) { |
| 853 | if (mode == DRM_MODE_DPMS_ON) |
| 854 | bridge->funcs->enable(bridge); |
| 855 | else |
| 856 | bridge->funcs->post_disable(bridge); |
| 857 | } |
| 858 | } |
| 859 | |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 860 | static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) |
| 861 | { |
| 862 | int dpms = DRM_MODE_DPMS_OFF; |
| 863 | struct drm_connector *connector; |
| 864 | struct drm_device *dev = crtc->dev; |
| 865 | |
| 866 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
| 867 | if (connector->encoder && connector->encoder->crtc == crtc) |
| 868 | if (connector->dpms < dpms) |
| 869 | dpms = connector->dpms; |
| 870 | return dpms; |
| 871 | } |
| 872 | |
| 873 | /** |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 874 | * drm_helper_connector_dpms() - connector dpms helper implementation |
| 875 | * @connector: affected connector |
| 876 | * @mode: DPMS mode |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 877 | * |
Daniel Vetter | 0d4ed4c | 2012-11-01 14:45:16 +0100 | [diff] [blame] | 878 | * This is the main helper function provided by the crtc helper framework for |
| 879 | * implementing the DPMS connector attribute. It computes the new desired DPMS |
| 880 | * state for all encoders and crtcs in the output mesh and calls the ->dpms() |
| 881 | * callback provided by the driver appropriately. |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 882 | */ |
| 883 | void drm_helper_connector_dpms(struct drm_connector *connector, int mode) |
| 884 | { |
| 885 | struct drm_encoder *encoder = connector->encoder; |
| 886 | struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 887 | int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF; |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 888 | |
| 889 | if (mode == connector->dpms) |
| 890 | return; |
| 891 | |
| 892 | old_dpms = connector->dpms; |
| 893 | connector->dpms = mode; |
| 894 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 895 | if (encoder) |
| 896 | encoder_dpms = drm_helper_choose_encoder_dpms(encoder); |
| 897 | |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 898 | /* from off to on, do crtc then encoder */ |
| 899 | if (mode < old_dpms) { |
| 900 | if (crtc) { |
| 901 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 902 | if (crtc_funcs->dpms) |
| 903 | (*crtc_funcs->dpms) (crtc, |
| 904 | drm_helper_choose_crtc_dpms(crtc)); |
| 905 | } |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 906 | if (encoder) |
| 907 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | /* from on to off, do encoder then crtc */ |
| 911 | if (mode > old_dpms) { |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 912 | if (encoder) |
| 913 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
Keith Packard | c9fb15f | 2009-05-30 20:42:28 -0700 | [diff] [blame] | 914 | if (crtc) { |
| 915 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 916 | if (crtc_funcs->dpms) |
| 917 | (*crtc_funcs->dpms) (crtc, |
| 918 | drm_helper_choose_crtc_dpms(crtc)); |
| 919 | } |
| 920 | } |
| 921 | |
| 922 | return; |
| 923 | } |
| 924 | EXPORT_SYMBOL(drm_helper_connector_dpms); |
| 925 | |
Daniel Vetter | 9fd9378 | 2014-01-23 22:16:24 +0100 | [diff] [blame^] | 926 | void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, |
| 927 | struct drm_mode_fb_cmd2 *mode_cmd) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 928 | { |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 929 | int i; |
| 930 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 931 | fb->width = mode_cmd->width; |
| 932 | fb->height = mode_cmd->height; |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 933 | for (i = 0; i < 4; i++) { |
| 934 | fb->pitches[i] = mode_cmd->pitches[i]; |
| 935 | fb->offsets[i] = mode_cmd->offsets[i]; |
| 936 | } |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 937 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth, |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 938 | &fb->bits_per_pixel); |
| 939 | fb->pixel_format = mode_cmd->pixel_format; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 940 | } |
| 941 | EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct); |
| 942 | |
Daniel Vetter | aa4cd91 | 2014-01-22 16:42:02 +0100 | [diff] [blame] | 943 | /** |
| 944 | * drm_helper_resume_force_mode - force-restore mode setting configuration |
| 945 | * @dev: drm_device which should be restored |
| 946 | * |
| 947 | * Drivers which use the mode setting helpers can use this function to |
| 948 | * force-restore the mode setting configuration e.g. on resume or when something |
| 949 | * else might have trampled over the hw state (like some overzealous old BIOSen |
| 950 | * tended to do). |
| 951 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 952 | int drm_helper_resume_force_mode(struct drm_device *dev) |
| 953 | { |
| 954 | struct drm_crtc *crtc; |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 955 | struct drm_encoder *encoder; |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 956 | struct drm_crtc_helper_funcs *crtc_funcs; |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 957 | int ret, encoder_dpms; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 958 | |
| 959 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 960 | |
| 961 | if (!crtc->enabled) |
| 962 | continue; |
| 963 | |
Kristian Høgsberg | 3c4fdcf | 2008-12-17 22:14:46 -0500 | [diff] [blame] | 964 | ret = drm_crtc_helper_set_mode(crtc, &crtc->mode, |
| 965 | crtc->x, crtc->y, crtc->fb); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 966 | |
| 967 | if (ret == false) |
| 968 | DRM_ERROR("failed to set mode on crtc %p\n", crtc); |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 969 | |
| 970 | /* Turn off outputs that were already powered off */ |
| 971 | if (drm_helper_choose_crtc_dpms(crtc)) { |
| 972 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 973 | |
| 974 | if(encoder->crtc != crtc) |
| 975 | continue; |
| 976 | |
Sean Paul | 3b336ec | 2013-08-14 16:47:37 -0400 | [diff] [blame] | 977 | encoder_dpms = drm_helper_choose_encoder_dpms( |
| 978 | encoder); |
| 979 | |
| 980 | drm_helper_encoder_dpms(encoder, encoder_dpms); |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 981 | } |
Chris Wilson | 817e631 | 2010-08-06 15:03:31 +0100 | [diff] [blame] | 982 | |
| 983 | crtc_funcs = crtc->helper_private; |
| 984 | if (crtc_funcs->dpms) |
| 985 | (*crtc_funcs->dpms) (crtc, |
| 986 | drm_helper_choose_crtc_dpms(crtc)); |
David John | 89347bb | 2009-12-31 12:00:46 +0530 | [diff] [blame] | 987 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 988 | } |
Zhao Yakui | af4fcb5 | 2009-07-08 14:13:13 +0800 | [diff] [blame] | 989 | /* disable the unused connectors while restoring the modesetting */ |
| 990 | drm_helper_disable_unused_functions(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 991 | return 0; |
| 992 | } |
| 993 | EXPORT_SYMBOL(drm_helper_resume_force_mode); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 994 | |
Daniel Vetter | 3d3683f | 2012-10-23 18:23:32 +0000 | [diff] [blame] | 995 | void drm_kms_helper_hotplug_event(struct drm_device *dev) |
| 996 | { |
| 997 | /* send a uevent + call fbdev */ |
| 998 | drm_sysfs_hotplug_event(dev); |
| 999 | if (dev->mode_config.funcs->output_poll_changed) |
| 1000 | dev->mode_config.funcs->output_poll_changed(dev); |
| 1001 | } |
| 1002 | EXPORT_SYMBOL(drm_kms_helper_hotplug_event); |
| 1003 | |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1004 | #define DRM_OUTPUT_POLL_PERIOD (10*HZ) |
Tejun Heo | 991ea75 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1005 | static void output_poll_execute(struct work_struct *work) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1006 | { |
Tejun Heo | 991ea75 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1007 | struct delayed_work *delayed_work = to_delayed_work(work); |
| 1008 | struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1009 | struct drm_connector *connector; |
Keith Packard | c5027de | 2010-11-26 10:45:59 -0800 | [diff] [blame] | 1010 | enum drm_connector_status old_status; |
Dave Airlie | d482e5f | 2013-06-28 20:31:34 +1000 | [diff] [blame] | 1011 | bool repoll = false, changed = false; |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1012 | |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 1013 | if (!drm_kms_helper_poll) |
| 1014 | return; |
| 1015 | |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1016 | mutex_lock(&dev->mode_config.mutex); |
| 1017 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 1018 | |
Daniel Vetter | 11e6868 | 2012-10-23 18:23:38 +0000 | [diff] [blame] | 1019 | /* Ignore forced connectors. */ |
| 1020 | if (connector->force) |
| 1021 | continue; |
| 1022 | |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1023 | /* Ignore HPD capable connectors and connectors where we don't |
| 1024 | * want any hotplug detection at all for polling. */ |
| 1025 | if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1026 | continue; |
| 1027 | |
Daniel Vetter | a4f968d | 2012-10-24 13:35:50 +0000 | [diff] [blame] | 1028 | repoll = true; |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1029 | |
| 1030 | old_status = connector->status; |
| 1031 | /* if we are connected and don't want to poll for disconnect |
| 1032 | skip it */ |
| 1033 | if (old_status == connector_status_connected && |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1034 | !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT)) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1035 | continue; |
| 1036 | |
Keith Packard | c5027de | 2010-11-26 10:45:59 -0800 | [diff] [blame] | 1037 | connector->status = connector->funcs->detect(connector, false); |
Lespiau, Damien | b2dfcae | 2013-05-10 12:36:44 +0000 | [diff] [blame] | 1038 | if (old_status != connector->status) { |
| 1039 | const char *old, *new; |
| 1040 | |
| 1041 | old = drm_get_connector_status_name(old_status); |
| 1042 | new = drm_get_connector_status_name(connector->status); |
| 1043 | |
| 1044 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] " |
| 1045 | "status updated from %s to %s\n", |
| 1046 | connector->base.id, |
| 1047 | drm_get_connector_name(connector), |
| 1048 | old, new); |
| 1049 | |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1050 | changed = true; |
Lespiau, Damien | b2dfcae | 2013-05-10 12:36:44 +0000 | [diff] [blame] | 1051 | } |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1052 | } |
| 1053 | |
| 1054 | mutex_unlock(&dev->mode_config.mutex); |
| 1055 | |
Daniel Vetter | 3d3683f | 2012-10-23 18:23:32 +0000 | [diff] [blame] | 1056 | if (changed) |
| 1057 | drm_kms_helper_hotplug_event(dev); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1058 | |
Tejun Heo | 9a919c4 | 2010-08-09 12:01:27 +0200 | [diff] [blame] | 1059 | if (repoll) |
Tejun Heo | 3b07e9c | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 1060 | schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1061 | } |
| 1062 | |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1063 | void drm_kms_helper_poll_disable(struct drm_device *dev) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1064 | { |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1065 | if (!dev->mode_config.poll_enabled) |
| 1066 | return; |
Tejun Heo | 991ea75 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1067 | cancel_delayed_work_sync(&dev->mode_config.output_poll_work); |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1068 | } |
| 1069 | EXPORT_SYMBOL(drm_kms_helper_poll_disable); |
| 1070 | |
| 1071 | void drm_kms_helper_poll_enable(struct drm_device *dev) |
| 1072 | { |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1073 | bool poll = false; |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1074 | struct drm_connector *connector; |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1075 | |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 1076 | if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll) |
| 1077 | return; |
| 1078 | |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1079 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
Daniel Vetter | a4f968d | 2012-10-24 13:35:50 +0000 | [diff] [blame] | 1080 | if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | |
| 1081 | DRM_CONNECTOR_POLL_DISCONNECT)) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1082 | poll = true; |
| 1083 | } |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1084 | |
Tejun Heo | 9a919c4 | 2010-08-09 12:01:27 +0200 | [diff] [blame] | 1085 | if (poll) |
Tejun Heo | 3b07e9c | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 1086 | schedule_delayed_work(&dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1087 | } |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1088 | EXPORT_SYMBOL(drm_kms_helper_poll_enable); |
| 1089 | |
| 1090 | void drm_kms_helper_poll_init(struct drm_device *dev) |
| 1091 | { |
Tejun Heo | 991ea75 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1092 | INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute); |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1093 | dev->mode_config.poll_enabled = true; |
| 1094 | |
| 1095 | drm_kms_helper_poll_enable(dev); |
| 1096 | } |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1097 | EXPORT_SYMBOL(drm_kms_helper_poll_init); |
| 1098 | |
| 1099 | void drm_kms_helper_poll_fini(struct drm_device *dev) |
| 1100 | { |
Dave Airlie | fbf8176 | 2010-06-01 09:09:06 +1000 | [diff] [blame] | 1101 | drm_kms_helper_poll_disable(dev); |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1102 | } |
| 1103 | EXPORT_SYMBOL(drm_kms_helper_poll_fini); |
| 1104 | |
Marc-André Lureau | b8206d3 | 2013-10-18 16:11:28 +0200 | [diff] [blame] | 1105 | bool drm_helper_hpd_irq_event(struct drm_device *dev) |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1106 | { |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1107 | struct drm_connector *connector; |
| 1108 | enum drm_connector_status old_status; |
| 1109 | bool changed = false; |
| 1110 | |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1111 | if (!dev->mode_config.poll_enabled) |
Marc-André Lureau | b8206d3 | 2013-10-18 16:11:28 +0200 | [diff] [blame] | 1112 | return false; |
Chris Wilson | e58f637 | 2010-08-20 09:13:36 +0100 | [diff] [blame] | 1113 | |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1114 | mutex_lock(&dev->mode_config.mutex); |
| 1115 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 1116 | |
| 1117 | /* Only handle HPD capable connectors. */ |
| 1118 | if (!(connector->polled & DRM_CONNECTOR_POLL_HPD)) |
| 1119 | continue; |
| 1120 | |
| 1121 | old_status = connector->status; |
| 1122 | |
| 1123 | connector->status = connector->funcs->detect(connector, false); |
Lespiau, Damien | ed7951d | 2013-05-10 12:36:42 +0000 | [diff] [blame] | 1124 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n", |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1125 | connector->base.id, |
| 1126 | drm_get_connector_name(connector), |
Lespiau, Damien | ed7951d | 2013-05-10 12:36:42 +0000 | [diff] [blame] | 1127 | drm_get_connector_status_name(old_status), |
| 1128 | drm_get_connector_status_name(connector->status)); |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1129 | if (old_status != connector->status) |
| 1130 | changed = true; |
| 1131 | } |
| 1132 | |
| 1133 | mutex_unlock(&dev->mode_config.mutex); |
| 1134 | |
| 1135 | if (changed) |
| 1136 | drm_kms_helper_hotplug_event(dev); |
Marc-André Lureau | b8206d3 | 2013-10-18 16:11:28 +0200 | [diff] [blame] | 1137 | |
| 1138 | return changed; |
Daniel Vetter | 816da85 | 2012-10-23 18:23:33 +0000 | [diff] [blame] | 1139 | } |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 1140 | EXPORT_SYMBOL(drm_helper_hpd_irq_event); |