Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| 3 | * Authors: |
| 4 | * Inki Dae <inki.dae@samsung.com> |
| 5 | * Joonyoung Shim <jy0922.shim@samsung.com> |
| 6 | * Seung-Woo Kim <sw0312.kim@samsung.com> |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the "Software"), |
| 10 | * to deal in the Software without restriction, including without limitation |
| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
| 13 | * Software is furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice (including the next |
| 16 | * paragraph) shall be included in all copies or substantial portions of the |
| 17 | * Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 22 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 23 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 24 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 25 | * OTHER DEALINGS IN THE SOFTWARE. |
| 26 | */ |
| 27 | |
| 28 | #include "drmP.h" |
| 29 | #include "drm_crtc_helper.h" |
| 30 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 31 | #include <drm/exynos_drm.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 32 | #include "exynos_drm_drv.h" |
| 33 | #include "exynos_drm_encoder.h" |
| 34 | |
| 35 | #define MAX_EDID 256 |
| 36 | #define to_exynos_connector(x) container_of(x, struct exynos_drm_connector,\ |
| 37 | drm_connector) |
| 38 | |
| 39 | struct exynos_drm_connector { |
| 40 | struct drm_connector drm_connector; |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 41 | uint32_t encoder_id; |
| 42 | struct exynos_drm_manager *manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 43 | }; |
| 44 | |
| 45 | /* convert exynos_video_timings to drm_display_mode */ |
| 46 | static inline void |
| 47 | convert_to_display_mode(struct drm_display_mode *mode, |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 48 | struct exynos_drm_panel_info *panel) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 49 | { |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 50 | struct fb_videomode *timing = &panel->timing; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 51 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 52 | |
| 53 | mode->clock = timing->pixclock / 1000; |
Seung-Woo Kim | 8b58dfe | 2011-10-19 15:11:55 +0900 | [diff] [blame] | 54 | mode->vrefresh = timing->refresh; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 55 | |
| 56 | mode->hdisplay = timing->xres; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 57 | mode->hsync_start = mode->hdisplay + timing->right_margin; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 58 | mode->hsync_end = mode->hsync_start + timing->hsync_len; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 59 | mode->htotal = mode->hsync_end + timing->left_margin; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 60 | |
| 61 | mode->vdisplay = timing->yres; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 62 | mode->vsync_start = mode->vdisplay + timing->lower_margin; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 63 | mode->vsync_end = mode->vsync_start + timing->vsync_len; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 64 | mode->vtotal = mode->vsync_end + timing->upper_margin; |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 65 | mode->width_mm = panel->width_mm; |
| 66 | mode->height_mm = panel->height_mm; |
Seung-Woo Kim | 8b58dfe | 2011-10-19 15:11:55 +0900 | [diff] [blame] | 67 | |
| 68 | if (timing->vmode & FB_VMODE_INTERLACED) |
| 69 | mode->flags |= DRM_MODE_FLAG_INTERLACE; |
| 70 | |
| 71 | if (timing->vmode & FB_VMODE_DOUBLE) |
| 72 | mode->flags |= DRM_MODE_FLAG_DBLSCAN; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | /* convert drm_display_mode to exynos_video_timings */ |
| 76 | static inline void |
| 77 | convert_to_video_timing(struct fb_videomode *timing, |
| 78 | struct drm_display_mode *mode) |
| 79 | { |
| 80 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 81 | |
| 82 | memset(timing, 0, sizeof(*timing)); |
| 83 | |
| 84 | timing->pixclock = mode->clock * 1000; |
Seung-Woo Kim | 8b58dfe | 2011-10-19 15:11:55 +0900 | [diff] [blame] | 85 | timing->refresh = drm_mode_vrefresh(mode); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 86 | |
| 87 | timing->xres = mode->hdisplay; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 88 | timing->right_margin = mode->hsync_start - mode->hdisplay; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 89 | timing->hsync_len = mode->hsync_end - mode->hsync_start; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 90 | timing->left_margin = mode->htotal - mode->hsync_end; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 91 | |
| 92 | timing->yres = mode->vdisplay; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 93 | timing->lower_margin = mode->vsync_start - mode->vdisplay; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 94 | timing->vsync_len = mode->vsync_end - mode->vsync_start; |
Laurent Pinchart | f7d8607 | 2012-03-09 09:45:21 +0900 | [diff] [blame] | 95 | timing->upper_margin = mode->vtotal - mode->vsync_end; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 96 | |
| 97 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) |
| 98 | timing->vmode = FB_VMODE_INTERLACED; |
| 99 | else |
| 100 | timing->vmode = FB_VMODE_NONINTERLACED; |
| 101 | |
| 102 | if (mode->flags & DRM_MODE_FLAG_DBLSCAN) |
| 103 | timing->vmode |= FB_VMODE_DOUBLE; |
| 104 | } |
| 105 | |
| 106 | static int exynos_drm_connector_get_modes(struct drm_connector *connector) |
| 107 | { |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 108 | struct exynos_drm_connector *exynos_connector = |
| 109 | to_exynos_connector(connector); |
| 110 | struct exynos_drm_manager *manager = exynos_connector->manager; |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 111 | struct exynos_drm_display_ops *display_ops = manager->display_ops; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 112 | unsigned int count; |
| 113 | |
| 114 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 115 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 116 | if (!display_ops) { |
| 117 | DRM_DEBUG_KMS("display_ops is null.\n"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 118 | return 0; |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * if get_edid() exists then get_edid() callback of hdmi side |
| 123 | * is called to get edid data through i2c interface else |
| 124 | * get timing from the FIMD driver(display controller). |
| 125 | * |
| 126 | * P.S. in case of lcd panel, count is always 1 if success |
| 127 | * because lcd panel has only one mode. |
| 128 | */ |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 129 | if (display_ops->get_edid) { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 130 | int ret; |
| 131 | void *edid; |
| 132 | |
| 133 | edid = kzalloc(MAX_EDID, GFP_KERNEL); |
| 134 | if (!edid) { |
| 135 | DRM_ERROR("failed to allocate edid\n"); |
| 136 | return 0; |
| 137 | } |
| 138 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 139 | ret = display_ops->get_edid(manager->dev, connector, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 140 | edid, MAX_EDID); |
| 141 | if (ret < 0) { |
| 142 | DRM_ERROR("failed to get edid data.\n"); |
| 143 | kfree(edid); |
| 144 | edid = NULL; |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | drm_mode_connector_update_edid_property(connector, edid); |
| 149 | count = drm_add_edid_modes(connector, edid); |
| 150 | |
| 151 | kfree(connector->display_info.raw_edid); |
| 152 | connector->display_info.raw_edid = edid; |
| 153 | } else { |
| 154 | struct drm_display_mode *mode = drm_mode_create(connector->dev); |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 155 | struct exynos_drm_panel_info *panel; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 156 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 157 | if (display_ops->get_panel) |
| 158 | panel = display_ops->get_panel(manager->dev); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 159 | else { |
| 160 | drm_mode_destroy(connector->dev, mode); |
| 161 | return 0; |
| 162 | } |
| 163 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 164 | convert_to_display_mode(mode, panel); |
| 165 | connector->display_info.width_mm = mode->width_mm; |
| 166 | connector->display_info.height_mm = mode->height_mm; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 167 | |
| 168 | mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; |
| 169 | drm_mode_set_name(mode); |
| 170 | drm_mode_probed_add(connector, mode); |
| 171 | |
| 172 | count = 1; |
| 173 | } |
| 174 | |
| 175 | return count; |
| 176 | } |
| 177 | |
| 178 | static int exynos_drm_connector_mode_valid(struct drm_connector *connector, |
| 179 | struct drm_display_mode *mode) |
| 180 | { |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 181 | struct exynos_drm_connector *exynos_connector = |
| 182 | to_exynos_connector(connector); |
| 183 | struct exynos_drm_manager *manager = exynos_connector->manager; |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 184 | struct exynos_drm_display_ops *display_ops = manager->display_ops; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 185 | struct fb_videomode timing; |
| 186 | int ret = MODE_BAD; |
| 187 | |
| 188 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 189 | |
| 190 | convert_to_video_timing(&timing, mode); |
| 191 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 192 | if (display_ops && display_ops->check_timing) |
| 193 | if (!display_ops->check_timing(manager->dev, (void *)&timing)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 194 | ret = MODE_OK; |
| 195 | |
| 196 | return ret; |
| 197 | } |
| 198 | |
Sachin Kamat | 2fb16de | 2012-06-13 14:17:09 +0530 | [diff] [blame] | 199 | static struct drm_encoder *exynos_drm_best_encoder( |
| 200 | struct drm_connector *connector) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 201 | { |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 202 | struct drm_device *dev = connector->dev; |
| 203 | struct exynos_drm_connector *exynos_connector = |
| 204 | to_exynos_connector(connector); |
| 205 | struct drm_mode_object *obj; |
| 206 | struct drm_encoder *encoder; |
| 207 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 208 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 209 | |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 210 | obj = drm_mode_object_find(dev, exynos_connector->encoder_id, |
| 211 | DRM_MODE_OBJECT_ENCODER); |
| 212 | if (!obj) { |
| 213 | DRM_DEBUG_KMS("Unknown ENCODER ID %d\n", |
| 214 | exynos_connector->encoder_id); |
| 215 | return NULL; |
| 216 | } |
| 217 | |
| 218 | encoder = obj_to_encoder(obj); |
| 219 | |
| 220 | return encoder; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | static struct drm_connector_helper_funcs exynos_connector_helper_funcs = { |
| 224 | .get_modes = exynos_drm_connector_get_modes, |
| 225 | .mode_valid = exynos_drm_connector_mode_valid, |
| 226 | .best_encoder = exynos_drm_best_encoder, |
| 227 | }; |
| 228 | |
Inki Dae | 1de425b | 2012-03-16 18:47:04 +0900 | [diff] [blame] | 229 | static int exynos_drm_connector_fill_modes(struct drm_connector *connector, |
| 230 | unsigned int max_width, unsigned int max_height) |
| 231 | { |
| 232 | struct exynos_drm_connector *exynos_connector = |
| 233 | to_exynos_connector(connector); |
| 234 | struct exynos_drm_manager *manager = exynos_connector->manager; |
| 235 | struct exynos_drm_manager_ops *ops = manager->ops; |
| 236 | unsigned int width, height; |
| 237 | |
| 238 | width = max_width; |
| 239 | height = max_height; |
| 240 | |
| 241 | /* |
| 242 | * if specific driver want to find desired_mode using maxmum |
| 243 | * resolution then get max width and height from that driver. |
| 244 | */ |
| 245 | if (ops && ops->get_max_resol) |
| 246 | ops->get_max_resol(manager->dev, &width, &height); |
| 247 | |
| 248 | return drm_helper_probe_single_connector_modes(connector, width, |
| 249 | height); |
| 250 | } |
| 251 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 252 | /* get detection status of display device. */ |
| 253 | static enum drm_connector_status |
| 254 | exynos_drm_connector_detect(struct drm_connector *connector, bool force) |
| 255 | { |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 256 | struct exynos_drm_connector *exynos_connector = |
| 257 | to_exynos_connector(connector); |
| 258 | struct exynos_drm_manager *manager = exynos_connector->manager; |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 259 | struct exynos_drm_display_ops *display_ops = |
| 260 | manager->display_ops; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 261 | enum drm_connector_status status = connector_status_disconnected; |
| 262 | |
| 263 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 264 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 265 | if (display_ops && display_ops->is_connected) { |
| 266 | if (display_ops->is_connected(manager->dev)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 267 | status = connector_status_connected; |
| 268 | else |
| 269 | status = connector_status_disconnected; |
| 270 | } |
| 271 | |
| 272 | return status; |
| 273 | } |
| 274 | |
| 275 | static void exynos_drm_connector_destroy(struct drm_connector *connector) |
| 276 | { |
| 277 | struct exynos_drm_connector *exynos_connector = |
| 278 | to_exynos_connector(connector); |
| 279 | |
| 280 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 281 | |
| 282 | drm_sysfs_connector_remove(connector); |
| 283 | drm_connector_cleanup(connector); |
| 284 | kfree(exynos_connector); |
| 285 | } |
| 286 | |
| 287 | static struct drm_connector_funcs exynos_connector_funcs = { |
| 288 | .dpms = drm_helper_connector_dpms, |
Inki Dae | 1de425b | 2012-03-16 18:47:04 +0900 | [diff] [blame] | 289 | .fill_modes = exynos_drm_connector_fill_modes, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 290 | .detect = exynos_drm_connector_detect, |
| 291 | .destroy = exynos_drm_connector_destroy, |
| 292 | }; |
| 293 | |
| 294 | struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, |
| 295 | struct drm_encoder *encoder) |
| 296 | { |
| 297 | struct exynos_drm_connector *exynos_connector; |
| 298 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); |
| 299 | struct drm_connector *connector; |
| 300 | int type; |
| 301 | int err; |
| 302 | |
| 303 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 304 | |
| 305 | exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL); |
| 306 | if (!exynos_connector) { |
| 307 | DRM_ERROR("failed to allocate connector\n"); |
| 308 | return NULL; |
| 309 | } |
| 310 | |
| 311 | connector = &exynos_connector->drm_connector; |
| 312 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 313 | switch (manager->display_ops->type) { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 314 | case EXYNOS_DISPLAY_TYPE_HDMI: |
| 315 | type = DRM_MODE_CONNECTOR_HDMIA; |
Seung-Woo Kim | 1b17b20 | 2011-10-19 15:10:10 +0900 | [diff] [blame] | 316 | connector->interlace_allowed = true; |
| 317 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 318 | break; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 319 | case EXYNOS_DISPLAY_TYPE_VIDI: |
| 320 | type = DRM_MODE_CONNECTOR_VIRTUAL; |
| 321 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
| 322 | break; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 323 | default: |
| 324 | type = DRM_MODE_CONNECTOR_Unknown; |
| 325 | break; |
| 326 | } |
| 327 | |
| 328 | drm_connector_init(dev, connector, &exynos_connector_funcs, type); |
| 329 | drm_connector_helper_add(connector, &exynos_connector_helper_funcs); |
| 330 | |
| 331 | err = drm_sysfs_connector_add(connector); |
| 332 | if (err) |
| 333 | goto err_connector; |
| 334 | |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 335 | exynos_connector->encoder_id = encoder->base.id; |
| 336 | exynos_connector->manager = manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 337 | connector->encoder = encoder; |
Inki Dae | adb6b15 | 2011-10-19 17:16:55 +0900 | [diff] [blame] | 338 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 339 | err = drm_mode_connector_attach_encoder(connector, encoder); |
| 340 | if (err) { |
| 341 | DRM_ERROR("failed to attach a connector to a encoder\n"); |
| 342 | goto err_sysfs; |
| 343 | } |
| 344 | |
| 345 | DRM_DEBUG_KMS("connector has been created\n"); |
| 346 | |
| 347 | return connector; |
| 348 | |
| 349 | err_sysfs: |
| 350 | drm_sysfs_connector_remove(connector); |
| 351 | err_connector: |
| 352 | drm_connector_cleanup(connector); |
| 353 | kfree(exynos_connector); |
| 354 | return NULL; |
| 355 | } |