Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2006 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | * SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Eric Anholt <eric@anholt.net> |
| 25 | * |
| 26 | */ |
| 27 | #include "drmP.h" |
| 28 | #include "drm.h" |
| 29 | #include "i915_drm.h" |
| 30 | #include "i915_drv.h" |
| 31 | #include "intel_bios.h" |
| 32 | |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 33 | #define SLAVE_ADDR1 0x70 |
| 34 | #define SLAVE_ADDR2 0x72 |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 35 | |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 36 | static int panel_type; |
| 37 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 38 | static void * |
| 39 | find_section(struct bdb_header *bdb, int section_id) |
| 40 | { |
| 41 | u8 *base = (u8 *)bdb; |
| 42 | int index = 0; |
| 43 | u16 total, current_size; |
| 44 | u8 current_id; |
| 45 | |
| 46 | /* skip to first section */ |
| 47 | index += bdb->header_size; |
| 48 | total = bdb->bdb_size; |
| 49 | |
| 50 | /* walk the sections looking for section_id */ |
| 51 | while (index < total) { |
| 52 | current_id = *(base + index); |
| 53 | index++; |
| 54 | current_size = *((u16 *)(base + index)); |
| 55 | index += 2; |
| 56 | if (current_id == section_id) |
| 57 | return base + index; |
| 58 | index += current_size; |
| 59 | } |
| 60 | |
| 61 | return NULL; |
| 62 | } |
| 63 | |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 64 | static u16 |
| 65 | get_blocksize(void *p) |
| 66 | { |
| 67 | u16 *block_ptr, block_size; |
| 68 | |
| 69 | block_ptr = (u16 *)((char *)p - 2); |
| 70 | block_size = *block_ptr; |
| 71 | return block_size; |
| 72 | } |
| 73 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 74 | static void |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 75 | fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, |
| 76 | struct lvds_dvo_timing *dvo_timing) |
| 77 | { |
| 78 | panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) | |
| 79 | dvo_timing->hactive_lo; |
| 80 | panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay + |
| 81 | ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo); |
| 82 | panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start + |
| 83 | dvo_timing->hsync_pulse_width; |
| 84 | panel_fixed_mode->htotal = panel_fixed_mode->hdisplay + |
| 85 | ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo); |
| 86 | |
| 87 | panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) | |
| 88 | dvo_timing->vactive_lo; |
| 89 | panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay + |
| 90 | dvo_timing->vsync_off; |
| 91 | panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start + |
| 92 | dvo_timing->vsync_pulse_width; |
| 93 | panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay + |
| 94 | ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo); |
| 95 | panel_fixed_mode->clock = dvo_timing->clock * 10; |
| 96 | panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; |
| 97 | |
Adam Jackson | 9bc3549 | 2010-05-28 17:17:37 -0400 | [diff] [blame] | 98 | if (dvo_timing->hsync_positive) |
| 99 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PHSYNC; |
| 100 | else |
| 101 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NHSYNC; |
| 102 | |
| 103 | if (dvo_timing->vsync_positive) |
| 104 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PVSYNC; |
| 105 | else |
| 106 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; |
| 107 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 108 | /* Some VBTs have bogus h/vtotal values */ |
| 109 | if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) |
| 110 | panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; |
| 111 | if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal) |
| 112 | panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1; |
| 113 | |
| 114 | drm_mode_set_name(panel_fixed_mode); |
| 115 | } |
| 116 | |
| 117 | /* Try to find integrated panel data */ |
| 118 | static void |
| 119 | parse_lfp_panel_data(struct drm_i915_private *dev_priv, |
| 120 | struct bdb_header *bdb) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 121 | { |
| 122 | struct bdb_lvds_options *lvds_options; |
| 123 | struct bdb_lvds_lfp_data *lvds_lfp_data; |
Jesse Barnes | 1b16de0 | 2009-06-22 11:30:30 -0700 | [diff] [blame] | 124 | struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 125 | struct bdb_lvds_lfp_data_entry *entry; |
| 126 | struct lvds_dvo_timing *dvo_timing; |
| 127 | struct drm_display_mode *panel_fixed_mode; |
Zhao Yakui | cdaa052 | 2009-07-28 10:54:13 +0800 | [diff] [blame] | 128 | int lfp_data_size, dvo_timing_offset; |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 129 | int i, temp_downclock; |
| 130 | struct drm_display_mode *temp_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 131 | |
| 132 | /* Defaults if we can't find VBT info */ |
| 133 | dev_priv->lvds_dither = 0; |
| 134 | dev_priv->lvds_vbt = 0; |
| 135 | |
| 136 | lvds_options = find_section(bdb, BDB_LVDS_OPTIONS); |
| 137 | if (!lvds_options) |
| 138 | return; |
| 139 | |
| 140 | dev_priv->lvds_dither = lvds_options->pixel_dither; |
| 141 | if (lvds_options->panel_type == 0xff) |
| 142 | return; |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 143 | panel_type = lvds_options->panel_type; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 144 | |
| 145 | lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA); |
| 146 | if (!lvds_lfp_data) |
| 147 | return; |
| 148 | |
Jesse Barnes | 1b16de0 | 2009-06-22 11:30:30 -0700 | [diff] [blame] | 149 | lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS); |
| 150 | if (!lvds_lfp_data_ptrs) |
| 151 | return; |
| 152 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 153 | dev_priv->lvds_vbt = 1; |
| 154 | |
Jesse Barnes | 1b16de0 | 2009-06-22 11:30:30 -0700 | [diff] [blame] | 155 | lfp_data_size = lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset - |
| 156 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset; |
| 157 | entry = (struct bdb_lvds_lfp_data_entry *) |
| 158 | ((uint8_t *)lvds_lfp_data->data + (lfp_data_size * |
| 159 | lvds_options->panel_type)); |
Zhao Yakui | cdaa052 | 2009-07-28 10:54:13 +0800 | [diff] [blame] | 160 | dvo_timing_offset = lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset - |
| 161 | lvds_lfp_data_ptrs->ptr[0].fp_timing_offset; |
Zhenyu Wang | 5019914 | 2009-07-10 14:39:59 +0800 | [diff] [blame] | 162 | |
Zhao Yakui | cdaa052 | 2009-07-28 10:54:13 +0800 | [diff] [blame] | 163 | /* |
| 164 | * the size of fp_timing varies on the different platform. |
| 165 | * So calculate the DVO timing relative offset in LVDS data |
| 166 | * entry to get the DVO timing entry |
| 167 | */ |
| 168 | dvo_timing = (struct lvds_dvo_timing *) |
| 169 | ((unsigned char *)entry + dvo_timing_offset); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 170 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 171 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
Chris Wilson | 6edc324 | 2010-09-12 17:16:17 +0100 | [diff] [blame] | 172 | if (!panel_fixed_mode) |
| 173 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 174 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 175 | fill_detail_timing_data(panel_fixed_mode, dvo_timing); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 176 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 177 | dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 178 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 179 | DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 180 | drm_mode_debug_printmodeline(panel_fixed_mode); |
| 181 | |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 182 | temp_mode = kzalloc(sizeof(*temp_mode), GFP_KERNEL); |
| 183 | temp_downclock = panel_fixed_mode->clock; |
| 184 | /* |
| 185 | * enumerate the LVDS panel timing info entry in VBT to check whether |
| 186 | * the LVDS downclock is found. |
| 187 | */ |
| 188 | for (i = 0; i < 16; i++) { |
| 189 | entry = (struct bdb_lvds_lfp_data_entry *) |
| 190 | ((uint8_t *)lvds_lfp_data->data + (lfp_data_size * i)); |
| 191 | dvo_timing = (struct lvds_dvo_timing *) |
| 192 | ((unsigned char *)entry + dvo_timing_offset); |
| 193 | |
| 194 | fill_detail_timing_data(temp_mode, dvo_timing); |
| 195 | |
| 196 | if (temp_mode->hdisplay == panel_fixed_mode->hdisplay && |
| 197 | temp_mode->hsync_start == panel_fixed_mode->hsync_start && |
| 198 | temp_mode->hsync_end == panel_fixed_mode->hsync_end && |
| 199 | temp_mode->htotal == panel_fixed_mode->htotal && |
| 200 | temp_mode->vdisplay == panel_fixed_mode->vdisplay && |
| 201 | temp_mode->vsync_start == panel_fixed_mode->vsync_start && |
| 202 | temp_mode->vsync_end == panel_fixed_mode->vsync_end && |
| 203 | temp_mode->vtotal == panel_fixed_mode->vtotal && |
| 204 | temp_mode->clock < temp_downclock) { |
| 205 | /* |
| 206 | * downclock is already found. But we expect |
| 207 | * to find the lower downclock. |
| 208 | */ |
| 209 | temp_downclock = temp_mode->clock; |
| 210 | } |
| 211 | /* clear it to zero */ |
| 212 | memset(temp_mode, 0, sizeof(*temp_mode)); |
| 213 | } |
| 214 | kfree(temp_mode); |
Jesse Barnes | 3381434 | 2010-01-14 20:48:02 +0000 | [diff] [blame] | 215 | if (temp_downclock < panel_fixed_mode->clock && |
| 216 | i915_lvds_downclock) { |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 217 | dev_priv->lvds_downclock_avail = 1; |
| 218 | dev_priv->lvds_downclock = temp_downclock; |
| 219 | DRM_DEBUG_KMS("LVDS downclock is found in VBT. ", |
| 220 | "Normal Clock %dKHz, downclock %dKHz\n", |
| 221 | temp_downclock, panel_fixed_mode->clock); |
| 222 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 223 | return; |
| 224 | } |
| 225 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 226 | /* Try to find sdvo panel data */ |
| 227 | static void |
| 228 | parse_sdvo_panel_data(struct drm_i915_private *dev_priv, |
| 229 | struct bdb_header *bdb) |
| 230 | { |
| 231 | struct bdb_sdvo_lvds_options *sdvo_lvds_options; |
| 232 | struct lvds_dvo_timing *dvo_timing; |
| 233 | struct drm_display_mode *panel_fixed_mode; |
| 234 | |
| 235 | dev_priv->sdvo_lvds_vbt_mode = NULL; |
| 236 | |
| 237 | sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS); |
| 238 | if (!sdvo_lvds_options) |
| 239 | return; |
| 240 | |
| 241 | dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS); |
| 242 | if (!dvo_timing) |
| 243 | return; |
| 244 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 245 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 246 | |
| 247 | if (!panel_fixed_mode) |
| 248 | return; |
| 249 | |
| 250 | fill_detail_timing_data(panel_fixed_mode, |
| 251 | dvo_timing + sdvo_lvds_options->panel_type); |
| 252 | |
| 253 | dev_priv->sdvo_lvds_vbt_mode = panel_fixed_mode; |
| 254 | |
| 255 | return; |
| 256 | } |
| 257 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 258 | static void |
| 259 | parse_general_features(struct drm_i915_private *dev_priv, |
| 260 | struct bdb_header *bdb) |
| 261 | { |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 262 | struct drm_device *dev = dev_priv->dev; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 263 | struct bdb_general_features *general; |
| 264 | |
| 265 | /* Set sensible defaults in case we can't find the general block */ |
| 266 | dev_priv->int_tv_support = 1; |
| 267 | dev_priv->int_crt_support = 1; |
| 268 | |
| 269 | general = find_section(bdb, BDB_GENERAL_FEATURES); |
| 270 | if (general) { |
| 271 | dev_priv->int_tv_support = general->int_tv_support; |
| 272 | dev_priv->int_crt_support = general->int_crt_support; |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 273 | dev_priv->lvds_use_ssc = general->enable_ssc; |
| 274 | |
| 275 | if (dev_priv->lvds_use_ssc) { |
ling.ma@intel.com | 6ff4fd0 | 2009-06-25 10:59:22 +0800 | [diff] [blame] | 276 | if (IS_I85X(dev_priv->dev)) |
| 277 | dev_priv->lvds_ssc_freq = |
| 278 | general->ssc_freq ? 66 : 48; |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 279 | else if (IS_IRONLAKE(dev_priv->dev) || IS_GEN6(dev)) |
Zhenyu Wang | 339e5a4 | 2009-09-19 14:54:07 +0800 | [diff] [blame] | 280 | dev_priv->lvds_ssc_freq = |
| 281 | general->ssc_freq ? 100 : 120; |
ling.ma@intel.com | 6ff4fd0 | 2009-06-25 10:59:22 +0800 | [diff] [blame] | 282 | else |
| 283 | dev_priv->lvds_ssc_freq = |
| 284 | general->ssc_freq ? 100 : 96; |
Kristian Høgsberg | 43565a0 | 2009-02-13 20:56:52 -0500 | [diff] [blame] | 285 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 286 | } |
| 287 | } |
| 288 | |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 289 | static void |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 290 | parse_general_definitions(struct drm_i915_private *dev_priv, |
| 291 | struct bdb_header *bdb) |
| 292 | { |
| 293 | struct bdb_general_definitions *general; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 294 | |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 295 | general = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 296 | if (general) { |
| 297 | u16 block_size = get_blocksize(general); |
| 298 | if (block_size >= sizeof(*general)) { |
| 299 | int bus_pin = general->crt_ddc_gmbus_pin; |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 300 | DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin); |
Chris Wilson | f899fc6 | 2010-07-20 15:44:45 -0700 | [diff] [blame] | 301 | if (bus_pin >= 1 && bus_pin <= 6) |
Chris Wilson | 2896b53 | 2010-09-22 10:54:48 +0100 | [diff] [blame^] | 302 | dev_priv->crt_ddc_pin = bus_pin; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 303 | } else { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 304 | DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n", |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 305 | block_size); |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | static void |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 311 | parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 312 | struct bdb_header *bdb) |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 313 | { |
| 314 | struct sdvo_device_mapping *p_mapping; |
| 315 | struct bdb_general_definitions *p_defs; |
| 316 | struct child_device_config *p_child; |
| 317 | int i, child_device_num, count; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 318 | u16 block_size; |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 319 | |
| 320 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 321 | if (!p_defs) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 322 | DRM_DEBUG_KMS("No general definition block is found, unable to construct sdvo mapping.\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 323 | return; |
| 324 | } |
| 325 | /* judge whether the size of child device meets the requirements. |
| 326 | * If the child device size obtained from general definition block |
| 327 | * is different with sizeof(struct child_device_config), skip the |
| 328 | * parsing of sdvo device info |
| 329 | */ |
| 330 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
| 331 | /* different child dev size . Ignore it */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 332 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 333 | return; |
| 334 | } |
| 335 | /* get the block size of general definitions */ |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 336 | block_size = get_blocksize(p_defs); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 337 | /* get the number of child device */ |
| 338 | child_device_num = (block_size - sizeof(*p_defs)) / |
| 339 | sizeof(*p_child); |
| 340 | count = 0; |
| 341 | for (i = 0; i < child_device_num; i++) { |
| 342 | p_child = &(p_defs->devices[i]); |
| 343 | if (!p_child->device_type) { |
| 344 | /* skip the device block if device type is invalid */ |
| 345 | continue; |
| 346 | } |
| 347 | if (p_child->slave_addr != SLAVE_ADDR1 && |
| 348 | p_child->slave_addr != SLAVE_ADDR2) { |
| 349 | /* |
| 350 | * If the slave address is neither 0x70 nor 0x72, |
| 351 | * it is not a SDVO device. Skip it. |
| 352 | */ |
| 353 | continue; |
| 354 | } |
| 355 | if (p_child->dvo_port != DEVICE_PORT_DVOB && |
| 356 | p_child->dvo_port != DEVICE_PORT_DVOC) { |
| 357 | /* skip the incorrect SDVO port */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 358 | DRM_DEBUG_KMS("Incorrect SDVO port. Skip it \n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 359 | continue; |
| 360 | } |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 361 | DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on" |
| 362 | " %s port\n", |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 363 | p_child->slave_addr, |
| 364 | (p_child->dvo_port == DEVICE_PORT_DVOB) ? |
| 365 | "SDVOB" : "SDVOC"); |
| 366 | p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]); |
| 367 | if (!p_mapping->initialized) { |
| 368 | p_mapping->dvo_port = p_child->dvo_port; |
| 369 | p_mapping->slave_addr = p_child->slave_addr; |
| 370 | p_mapping->dvo_wiring = p_child->dvo_wiring; |
Adam Jackson | b108333 | 2010-04-23 16:07:40 -0400 | [diff] [blame] | 371 | p_mapping->ddc_pin = p_child->ddc_pin; |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 372 | p_mapping->initialized = 1; |
| 373 | } else { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 374 | DRM_DEBUG_KMS("Maybe one SDVO port is shared by " |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 375 | "two SDVO device.\n"); |
| 376 | } |
| 377 | if (p_child->slave2_addr) { |
| 378 | /* Maybe this is a SDVO device with multiple inputs */ |
| 379 | /* And the mapping info is not added */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 380 | DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this" |
| 381 | " is a SDVO device with multiple inputs.\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 382 | } |
| 383 | count++; |
| 384 | } |
| 385 | |
| 386 | if (!count) { |
| 387 | /* No SDVO device info is found */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 388 | DRM_DEBUG_KMS("No SDVO device info is found in VBT\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 389 | } |
| 390 | return; |
| 391 | } |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 392 | |
| 393 | static void |
| 394 | parse_driver_features(struct drm_i915_private *dev_priv, |
| 395 | struct bdb_header *bdb) |
| 396 | { |
| 397 | struct drm_device *dev = dev_priv->dev; |
| 398 | struct bdb_driver_features *driver; |
| 399 | |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 400 | driver = find_section(bdb, BDB_DRIVER_FEATURES); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 401 | if (!driver) |
| 402 | return; |
| 403 | |
Andy Lutomirski | 181a533 | 2009-10-13 10:40:52 -0700 | [diff] [blame] | 404 | if (driver && SUPPORTS_EDP(dev) && |
| 405 | driver->lvds_config == BDB_DRIVER_FEATURE_EDP) { |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 406 | dev_priv->edp_support = 1; |
Andy Lutomirski | 181a533 | 2009-10-13 10:40:52 -0700 | [diff] [blame] | 407 | } else { |
| 408 | dev_priv->edp_support = 0; |
| 409 | } |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 410 | |
Andy Lutomirski | 181a533 | 2009-10-13 10:40:52 -0700 | [diff] [blame] | 411 | if (driver && driver->dual_frequency) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 412 | dev_priv->render_reclock_avail = true; |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 413 | } |
| 414 | |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 415 | static void |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 416 | parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
| 417 | { |
| 418 | struct bdb_edp *edp; |
| 419 | |
| 420 | edp = find_section(bdb, BDB_EDP); |
| 421 | if (!edp) { |
| 422 | if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp_support) { |
Joe Perches | 76e47c3 | 2010-03-11 14:01:38 -0800 | [diff] [blame] | 423 | DRM_DEBUG_KMS("No eDP BDB found but eDP panel " |
| 424 | "supported, assume 18bpp panel color " |
| 425 | "depth.\n"); |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 426 | dev_priv->edp_bpp = 18; |
| 427 | } |
| 428 | return; |
| 429 | } |
| 430 | |
| 431 | switch ((edp->color_depth >> (panel_type * 2)) & 3) { |
| 432 | case EDP_18BPP: |
| 433 | dev_priv->edp_bpp = 18; |
| 434 | break; |
| 435 | case EDP_24BPP: |
| 436 | dev_priv->edp_bpp = 24; |
| 437 | break; |
| 438 | case EDP_30BPP: |
| 439 | dev_priv->edp_bpp = 30; |
| 440 | break; |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | static void |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 445 | parse_device_mapping(struct drm_i915_private *dev_priv, |
| 446 | struct bdb_header *bdb) |
| 447 | { |
| 448 | struct bdb_general_definitions *p_defs; |
| 449 | struct child_device_config *p_child, *child_dev_ptr; |
| 450 | int i, child_device_num, count; |
| 451 | u16 block_size; |
| 452 | |
| 453 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 454 | if (!p_defs) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 455 | DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n"); |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 456 | return; |
| 457 | } |
| 458 | /* judge whether the size of child device meets the requirements. |
| 459 | * If the child device size obtained from general definition block |
| 460 | * is different with sizeof(struct child_device_config), skip the |
| 461 | * parsing of sdvo device info |
| 462 | */ |
| 463 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
| 464 | /* different child dev size . Ignore it */ |
| 465 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
| 466 | return; |
| 467 | } |
| 468 | /* get the block size of general definitions */ |
| 469 | block_size = get_blocksize(p_defs); |
| 470 | /* get the number of child device */ |
| 471 | child_device_num = (block_size - sizeof(*p_defs)) / |
| 472 | sizeof(*p_child); |
| 473 | count = 0; |
| 474 | /* get the number of child device that is present */ |
| 475 | for (i = 0; i < child_device_num; i++) { |
| 476 | p_child = &(p_defs->devices[i]); |
| 477 | if (!p_child->device_type) { |
| 478 | /* skip the device block if device type is invalid */ |
| 479 | continue; |
| 480 | } |
| 481 | count++; |
| 482 | } |
| 483 | if (!count) { |
| 484 | DRM_DEBUG_KMS("no child dev is parsed from VBT \n"); |
| 485 | return; |
| 486 | } |
| 487 | dev_priv->child_dev = kzalloc(sizeof(*p_child) * count, GFP_KERNEL); |
| 488 | if (!dev_priv->child_dev) { |
| 489 | DRM_DEBUG_KMS("No memory space for child device\n"); |
| 490 | return; |
| 491 | } |
| 492 | |
| 493 | dev_priv->child_dev_num = count; |
| 494 | count = 0; |
| 495 | for (i = 0; i < child_device_num; i++) { |
| 496 | p_child = &(p_defs->devices[i]); |
| 497 | if (!p_child->device_type) { |
| 498 | /* skip the device block if device type is invalid */ |
| 499 | continue; |
| 500 | } |
| 501 | child_dev_ptr = dev_priv->child_dev + count; |
| 502 | count++; |
| 503 | memcpy((void *)child_dev_ptr, (void *)p_child, |
| 504 | sizeof(*p_child)); |
| 505 | } |
| 506 | return; |
| 507 | } |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 508 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 509 | /** |
| 510 | * intel_init_bios - initialize VBIOS settings & find VBT |
| 511 | * @dev: DRM device |
| 512 | * |
| 513 | * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers |
| 514 | * to appropriate values. |
| 515 | * |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 516 | * Returns 0 on success, nonzero on failure. |
| 517 | */ |
| 518 | bool |
| 519 | intel_init_bios(struct drm_device *dev) |
| 520 | { |
| 521 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 522 | struct pci_dev *pdev = dev->pdev; |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 523 | struct bdb_header *bdb = NULL; |
| 524 | u8 __iomem *bios = NULL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 525 | |
Chris Wilson | f899fc6 | 2010-07-20 15:44:45 -0700 | [diff] [blame] | 526 | dev_priv->crt_ddc_pin = GMBUS_PORT_VGADDC; |
| 527 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 528 | /* XXX Should this validation be moved to intel_opregion.c? */ |
| 529 | if (dev_priv->opregion.vbt) { |
| 530 | struct vbt_header *vbt = dev_priv->opregion.vbt; |
| 531 | if (memcmp(vbt->signature, "$VBT", 4) == 0) { |
| 532 | DRM_DEBUG_DRIVER("Using VBT from OpRegion: %20s\n", |
| 533 | vbt->signature); |
| 534 | bdb = (struct bdb_header *)((char *)vbt + vbt->bdb_offset); |
| 535 | } else |
| 536 | dev_priv->opregion.vbt = NULL; |
| 537 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 538 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 539 | if (bdb == NULL) { |
| 540 | struct vbt_header *vbt = NULL; |
| 541 | size_t size; |
| 542 | int i; |
| 543 | |
| 544 | bios = pci_map_rom(pdev, &size); |
| 545 | if (!bios) |
| 546 | return -1; |
| 547 | |
| 548 | /* Scour memory looking for the VBT signature */ |
| 549 | for (i = 0; i + 4 < size; i++) { |
| 550 | if (!memcmp(bios + i, "$VBT", 4)) { |
| 551 | vbt = (struct vbt_header *)(bios + i); |
| 552 | break; |
| 553 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 554 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 555 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 556 | if (!vbt) { |
| 557 | DRM_ERROR("VBT signature missing\n"); |
| 558 | pci_unmap_rom(pdev, bios); |
| 559 | return -1; |
| 560 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 561 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 562 | bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset); |
| 563 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 564 | |
| 565 | /* Grab useful general definitions */ |
| 566 | parse_general_features(dev_priv, bdb); |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 567 | parse_general_definitions(dev_priv, bdb); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 568 | parse_lfp_panel_data(dev_priv, bdb); |
| 569 | parse_sdvo_panel_data(dev_priv, bdb); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 570 | parse_sdvo_device_mapping(dev_priv, bdb); |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 571 | parse_device_mapping(dev_priv, bdb); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 572 | parse_driver_features(dev_priv, bdb); |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 573 | parse_edp(dev_priv, bdb); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 574 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 575 | if (bios) |
| 576 | pci_unmap_rom(pdev, bios); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 577 | |
| 578 | return 0; |
| 579 | } |