Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 1 | /* |
Keith Packard | 3950725 | 2011-09-22 12:30:16 -0700 | [diff] [blame] | 2 | * Copyright © 2006 Intel Corporation |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 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 | */ |
Daniel Vetter | 25e341c | 2012-03-24 23:51:30 +0100 | [diff] [blame] | 27 | #include <linux/dmi.h> |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 28 | #include <drm/drm_dp_helper.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 29 | #include <drm/drmP.h> |
| 30 | #include <drm/i915_drm.h> |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 31 | #include "i915_drv.h" |
| 32 | #include "intel_bios.h" |
| 33 | |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 34 | #define SLAVE_ADDR1 0x70 |
| 35 | #define SLAVE_ADDR2 0x72 |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 36 | |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 37 | static int panel_type; |
| 38 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 39 | static void * |
| 40 | find_section(struct bdb_header *bdb, int section_id) |
| 41 | { |
| 42 | u8 *base = (u8 *)bdb; |
| 43 | int index = 0; |
| 44 | u16 total, current_size; |
| 45 | u8 current_id; |
| 46 | |
| 47 | /* skip to first section */ |
| 48 | index += bdb->header_size; |
| 49 | total = bdb->bdb_size; |
| 50 | |
| 51 | /* walk the sections looking for section_id */ |
| 52 | while (index < total) { |
| 53 | current_id = *(base + index); |
| 54 | index++; |
| 55 | current_size = *((u16 *)(base + index)); |
| 56 | index += 2; |
| 57 | if (current_id == section_id) |
| 58 | return base + index; |
| 59 | index += current_size; |
| 60 | } |
| 61 | |
| 62 | return NULL; |
| 63 | } |
| 64 | |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 65 | static u16 |
| 66 | get_blocksize(void *p) |
| 67 | { |
| 68 | u16 *block_ptr, block_size; |
| 69 | |
| 70 | block_ptr = (u16 *)((char *)p - 2); |
| 71 | block_size = *block_ptr; |
| 72 | return block_size; |
| 73 | } |
| 74 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 75 | static void |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 76 | fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 77 | const struct lvds_dvo_timing *dvo_timing) |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 78 | { |
| 79 | panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) | |
| 80 | dvo_timing->hactive_lo; |
| 81 | panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay + |
| 82 | ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo); |
| 83 | panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start + |
| 84 | dvo_timing->hsync_pulse_width; |
| 85 | panel_fixed_mode->htotal = panel_fixed_mode->hdisplay + |
| 86 | ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo); |
| 87 | |
| 88 | panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) | |
| 89 | dvo_timing->vactive_lo; |
| 90 | panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay + |
| 91 | dvo_timing->vsync_off; |
| 92 | panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start + |
| 93 | dvo_timing->vsync_pulse_width; |
| 94 | panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay + |
| 95 | ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo); |
| 96 | panel_fixed_mode->clock = dvo_timing->clock * 10; |
| 97 | panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; |
| 98 | |
Adam Jackson | 9bc3549 | 2010-05-28 17:17:37 -0400 | [diff] [blame] | 99 | if (dvo_timing->hsync_positive) |
| 100 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PHSYNC; |
| 101 | else |
| 102 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NHSYNC; |
| 103 | |
| 104 | if (dvo_timing->vsync_positive) |
| 105 | panel_fixed_mode->flags |= DRM_MODE_FLAG_PVSYNC; |
| 106 | else |
| 107 | panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; |
| 108 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 109 | /* Some VBTs have bogus h/vtotal values */ |
| 110 | if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) |
| 111 | panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; |
| 112 | if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal) |
| 113 | panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1; |
| 114 | |
| 115 | drm_mode_set_name(panel_fixed_mode); |
| 116 | } |
| 117 | |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 118 | static bool |
| 119 | lvds_dvo_timing_equal_size(const struct lvds_dvo_timing *a, |
| 120 | const struct lvds_dvo_timing *b) |
| 121 | { |
| 122 | if (a->hactive_hi != b->hactive_hi || |
| 123 | a->hactive_lo != b->hactive_lo) |
| 124 | return false; |
| 125 | |
| 126 | if (a->hsync_off_hi != b->hsync_off_hi || |
| 127 | a->hsync_off_lo != b->hsync_off_lo) |
| 128 | return false; |
| 129 | |
| 130 | if (a->hsync_pulse_width != b->hsync_pulse_width) |
| 131 | return false; |
| 132 | |
| 133 | if (a->hblank_hi != b->hblank_hi || |
| 134 | a->hblank_lo != b->hblank_lo) |
| 135 | return false; |
| 136 | |
| 137 | if (a->vactive_hi != b->vactive_hi || |
| 138 | a->vactive_lo != b->vactive_lo) |
| 139 | return false; |
| 140 | |
| 141 | if (a->vsync_off != b->vsync_off) |
| 142 | return false; |
| 143 | |
| 144 | if (a->vsync_pulse_width != b->vsync_pulse_width) |
| 145 | return false; |
| 146 | |
| 147 | if (a->vblank_hi != b->vblank_hi || |
| 148 | a->vblank_lo != b->vblank_lo) |
| 149 | return false; |
| 150 | |
| 151 | return true; |
| 152 | } |
| 153 | |
| 154 | static const struct lvds_dvo_timing * |
| 155 | get_lvds_dvo_timing(const struct bdb_lvds_lfp_data *lvds_lfp_data, |
| 156 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs, |
| 157 | int index) |
| 158 | { |
| 159 | /* |
| 160 | * the size of fp_timing varies on the different platform. |
| 161 | * So calculate the DVO timing relative offset in LVDS data |
| 162 | * entry to get the DVO timing entry |
| 163 | */ |
| 164 | |
| 165 | int lfp_data_size = |
| 166 | lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset - |
| 167 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset; |
| 168 | int dvo_timing_offset = |
| 169 | lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset - |
| 170 | lvds_lfp_data_ptrs->ptr[0].fp_timing_offset; |
| 171 | char *entry = (char *)lvds_lfp_data->data + lfp_data_size * index; |
| 172 | |
| 173 | return (struct lvds_dvo_timing *)(entry + dvo_timing_offset); |
| 174 | } |
| 175 | |
Takashi Iwai | b035438 | 2012-03-20 13:07:05 +0100 | [diff] [blame] | 176 | /* get lvds_fp_timing entry |
| 177 | * this function may return NULL if the corresponding entry is invalid |
| 178 | */ |
| 179 | static const struct lvds_fp_timing * |
| 180 | get_lvds_fp_timing(const struct bdb_header *bdb, |
| 181 | const struct bdb_lvds_lfp_data *data, |
| 182 | const struct bdb_lvds_lfp_data_ptrs *ptrs, |
| 183 | int index) |
| 184 | { |
| 185 | size_t data_ofs = (const u8 *)data - (const u8 *)bdb; |
| 186 | u16 data_size = ((const u16 *)data)[-1]; /* stored in header */ |
| 187 | size_t ofs; |
| 188 | |
| 189 | if (index >= ARRAY_SIZE(ptrs->ptr)) |
| 190 | return NULL; |
| 191 | ofs = ptrs->ptr[index].fp_timing_offset; |
| 192 | if (ofs < data_ofs || |
| 193 | ofs + sizeof(struct lvds_fp_timing) > data_ofs + data_size) |
| 194 | return NULL; |
| 195 | return (const struct lvds_fp_timing *)((const u8 *)bdb + ofs); |
| 196 | } |
| 197 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 198 | /* Try to find integrated panel data */ |
| 199 | static void |
| 200 | parse_lfp_panel_data(struct drm_i915_private *dev_priv, |
| 201 | struct bdb_header *bdb) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 202 | { |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 203 | const struct bdb_lvds_options *lvds_options; |
| 204 | const struct bdb_lvds_lfp_data *lvds_lfp_data; |
| 205 | const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; |
| 206 | const struct lvds_dvo_timing *panel_dvo_timing; |
Takashi Iwai | b035438 | 2012-03-20 13:07:05 +0100 | [diff] [blame] | 207 | const struct lvds_fp_timing *fp_timing; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 208 | struct drm_display_mode *panel_fixed_mode; |
Pradeep Bhat | 83a7280 | 2014-03-28 10:14:57 +0530 | [diff] [blame] | 209 | int i, downclock, drrs_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 210 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 211 | lvds_options = find_section(bdb, BDB_LVDS_OPTIONS); |
| 212 | if (!lvds_options) |
| 213 | return; |
| 214 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 215 | dev_priv->vbt.lvds_dither = lvds_options->pixel_dither; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 216 | if (lvds_options->panel_type == 0xff) |
| 217 | return; |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 218 | |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 219 | panel_type = lvds_options->panel_type; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 220 | |
Pradeep Bhat | 83a7280 | 2014-03-28 10:14:57 +0530 | [diff] [blame] | 221 | drrs_mode = (lvds_options->dps_panel_type_bits |
| 222 | >> (panel_type * 2)) & MODE_MASK; |
| 223 | /* |
| 224 | * VBT has static DRRS = 0 and seamless DRRS = 2. |
| 225 | * The below piece of code is required to adjust vbt.drrs_type |
| 226 | * to match the enum drrs_support_type. |
| 227 | */ |
| 228 | switch (drrs_mode) { |
| 229 | case 0: |
| 230 | dev_priv->vbt.drrs_type = STATIC_DRRS_SUPPORT; |
| 231 | DRM_DEBUG_KMS("DRRS supported mode is static\n"); |
| 232 | break; |
| 233 | case 2: |
| 234 | dev_priv->vbt.drrs_type = SEAMLESS_DRRS_SUPPORT; |
| 235 | DRM_DEBUG_KMS("DRRS supported mode is seamless\n"); |
| 236 | break; |
| 237 | default: |
| 238 | dev_priv->vbt.drrs_type = DRRS_NOT_SUPPORTED; |
| 239 | DRM_DEBUG_KMS("DRRS not supported (VBT input)\n"); |
| 240 | break; |
| 241 | } |
| 242 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 243 | lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA); |
| 244 | if (!lvds_lfp_data) |
| 245 | return; |
| 246 | |
Jesse Barnes | 1b16de0 | 2009-06-22 11:30:30 -0700 | [diff] [blame] | 247 | lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS); |
| 248 | if (!lvds_lfp_data_ptrs) |
| 249 | return; |
| 250 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 251 | dev_priv->vbt.lvds_vbt = 1; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 252 | |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 253 | panel_dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
| 254 | lvds_lfp_data_ptrs, |
| 255 | lvds_options->panel_type); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 256 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 257 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
Chris Wilson | 6edc324 | 2010-09-12 17:16:17 +0100 | [diff] [blame] | 258 | if (!panel_fixed_mode) |
| 259 | return; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 260 | |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 261 | fill_detail_timing_data(panel_fixed_mode, panel_dvo_timing); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 262 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 263 | dev_priv->vbt.lfp_lvds_vbt_mode = panel_fixed_mode; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 264 | |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 265 | DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n"); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 266 | drm_mode_debug_printmodeline(panel_fixed_mode); |
| 267 | |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 268 | /* |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 269 | * Iterate over the LVDS panel timing info to find the lowest clock |
| 270 | * for the native resolution. |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 271 | */ |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 272 | downclock = panel_dvo_timing->clock; |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 273 | for (i = 0; i < 16; i++) { |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 274 | const struct lvds_dvo_timing *dvo_timing; |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 275 | |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 276 | dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, |
| 277 | lvds_lfp_data_ptrs, |
| 278 | i); |
| 279 | if (lvds_dvo_timing_equal_size(dvo_timing, panel_dvo_timing) && |
| 280 | dvo_timing->clock < downclock) |
| 281 | downclock = dvo_timing->clock; |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 282 | } |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 283 | |
Jani Nikula | d330a95 | 2014-01-21 11:24:25 +0200 | [diff] [blame] | 284 | if (downclock < panel_dvo_timing->clock && i915.lvds_downclock) { |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 285 | dev_priv->lvds_downclock_avail = 1; |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 286 | dev_priv->lvds_downclock = downclock * 10; |
Joe Perches | bbb0aef | 2011-04-17 20:35:52 -0700 | [diff] [blame] | 287 | DRM_DEBUG_KMS("LVDS downclock is found in VBT. " |
| 288 | "Normal Clock %dKHz, downclock %dKHz\n", |
Chris Wilson | 99834ea | 2011-07-13 21:01:46 +0100 | [diff] [blame] | 289 | panel_fixed_mode->clock, 10*downclock); |
Zhao Yakui | d1fcea6a | 2009-11-20 11:24:17 +0800 | [diff] [blame] | 290 | } |
Takashi Iwai | b035438 | 2012-03-20 13:07:05 +0100 | [diff] [blame] | 291 | |
| 292 | fp_timing = get_lvds_fp_timing(bdb, lvds_lfp_data, |
| 293 | lvds_lfp_data_ptrs, |
| 294 | lvds_options->panel_type); |
| 295 | if (fp_timing) { |
| 296 | /* check the resolution, just to be sure */ |
| 297 | if (fp_timing->x_res == panel_fixed_mode->hdisplay && |
| 298 | fp_timing->y_res == panel_fixed_mode->vdisplay) { |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 299 | dev_priv->vbt.bios_lvds_val = fp_timing->lvds_reg_val; |
Takashi Iwai | b035438 | 2012-03-20 13:07:05 +0100 | [diff] [blame] | 300 | DRM_DEBUG_KMS("VBT initial LVDS value %x\n", |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 301 | dev_priv->vbt.bios_lvds_val); |
Takashi Iwai | b035438 | 2012-03-20 13:07:05 +0100 | [diff] [blame] | 302 | } |
| 303 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 304 | } |
| 305 | |
Jani Nikula | f00076d | 2013-12-14 20:38:29 -0200 | [diff] [blame] | 306 | static void |
| 307 | parse_lfp_backlight(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
| 308 | { |
| 309 | const struct bdb_lfp_backlight_data *backlight_data; |
| 310 | const struct bdb_lfp_backlight_data_entry *entry; |
| 311 | |
| 312 | backlight_data = find_section(bdb, BDB_LVDS_BACKLIGHT); |
| 313 | if (!backlight_data) |
| 314 | return; |
| 315 | |
| 316 | if (backlight_data->entry_size != sizeof(backlight_data->data[0])) { |
| 317 | DRM_DEBUG_KMS("Unsupported backlight data entry size %u\n", |
| 318 | backlight_data->entry_size); |
| 319 | return; |
| 320 | } |
| 321 | |
| 322 | entry = &backlight_data->data[panel_type]; |
| 323 | |
| 324 | dev_priv->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz; |
| 325 | dev_priv->vbt.backlight.active_low_pwm = entry->active_low_pwm; |
| 326 | DRM_DEBUG_KMS("VBT backlight PWM modulation frequency %u Hz, " |
| 327 | "active %s, min brightness %u, level %u\n", |
| 328 | dev_priv->vbt.backlight.pwm_freq_hz, |
| 329 | dev_priv->vbt.backlight.active_low_pwm ? "low" : "high", |
| 330 | entry->min_brightness, |
| 331 | backlight_data->level[panel_type]); |
| 332 | } |
| 333 | |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 334 | /* Try to find sdvo panel data */ |
| 335 | static void |
| 336 | parse_sdvo_panel_data(struct drm_i915_private *dev_priv, |
| 337 | struct bdb_header *bdb) |
| 338 | { |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 339 | struct lvds_dvo_timing *dvo_timing; |
| 340 | struct drm_display_mode *panel_fixed_mode; |
Chris Wilson | 5a1e5b6 | 2011-01-29 16:50:25 +0000 | [diff] [blame] | 341 | int index; |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 342 | |
Jani Nikula | d330a95 | 2014-01-21 11:24:25 +0200 | [diff] [blame] | 343 | index = i915.vbt_sdvo_panel_type; |
Mathias Fröhlich | c10e408 | 2012-03-01 06:44:35 +0100 | [diff] [blame] | 344 | if (index == -2) { |
| 345 | DRM_DEBUG_KMS("Ignore SDVO panel mode from BIOS VBT tables.\n"); |
| 346 | return; |
| 347 | } |
| 348 | |
Chris Wilson | 5a1e5b6 | 2011-01-29 16:50:25 +0000 | [diff] [blame] | 349 | if (index == -1) { |
| 350 | struct bdb_sdvo_lvds_options *sdvo_lvds_options; |
| 351 | |
| 352 | sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS); |
| 353 | if (!sdvo_lvds_options) |
| 354 | return; |
| 355 | |
| 356 | index = sdvo_lvds_options->panel_type; |
| 357 | } |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 358 | |
| 359 | dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS); |
| 360 | if (!dvo_timing) |
| 361 | return; |
| 362 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 363 | panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 364 | if (!panel_fixed_mode) |
| 365 | return; |
| 366 | |
Chris Wilson | 5a1e5b6 | 2011-01-29 16:50:25 +0000 | [diff] [blame] | 367 | fill_detail_timing_data(panel_fixed_mode, dvo_timing + index); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 368 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 369 | dev_priv->vbt.sdvo_lvds_vbt_mode = panel_fixed_mode; |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 370 | |
Chris Wilson | 5a1e5b6 | 2011-01-29 16:50:25 +0000 | [diff] [blame] | 371 | DRM_DEBUG_KMS("Found SDVO panel mode in BIOS VBT tables:\n"); |
| 372 | drm_mode_debug_printmodeline(panel_fixed_mode); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 373 | } |
| 374 | |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 375 | static int intel_bios_ssc_frequency(struct drm_device *dev, |
| 376 | bool alternate) |
| 377 | { |
| 378 | switch (INTEL_INFO(dev)->gen) { |
| 379 | case 2: |
Ville Syrjälä | e91e941 | 2013-12-09 18:54:16 +0200 | [diff] [blame] | 380 | return alternate ? 66667 : 48000; |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 381 | case 3: |
| 382 | case 4: |
Ville Syrjälä | e91e941 | 2013-12-09 18:54:16 +0200 | [diff] [blame] | 383 | return alternate ? 100000 : 96000; |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 384 | default: |
Ville Syrjälä | e91e941 | 2013-12-09 18:54:16 +0200 | [diff] [blame] | 385 | return alternate ? 100000 : 120000; |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 386 | } |
| 387 | } |
| 388 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 389 | static void |
| 390 | parse_general_features(struct drm_i915_private *dev_priv, |
| 391 | struct bdb_header *bdb) |
| 392 | { |
Eric Anholt | bad720f | 2009-10-22 16:11:14 -0700 | [diff] [blame] | 393 | struct drm_device *dev = dev_priv->dev; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 394 | struct bdb_general_features *general; |
| 395 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 396 | general = find_section(bdb, BDB_GENERAL_FEATURES); |
| 397 | if (general) { |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 398 | dev_priv->vbt.int_tv_support = general->int_tv_support; |
| 399 | dev_priv->vbt.int_crt_support = general->int_crt_support; |
| 400 | dev_priv->vbt.lvds_use_ssc = general->enable_ssc; |
| 401 | dev_priv->vbt.lvds_ssc_freq = |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 402 | intel_bios_ssc_frequency(dev, general->ssc_freq); |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 403 | dev_priv->vbt.display_clock_mode = general->display_clock_mode; |
| 404 | dev_priv->vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted; |
Paulo Zanoni | 3f704fa | 2013-04-08 15:48:07 -0300 | [diff] [blame] | 405 | DRM_DEBUG_KMS("BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d fdi_rx_polarity_inverted %d\n", |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 406 | dev_priv->vbt.int_tv_support, |
| 407 | dev_priv->vbt.int_crt_support, |
| 408 | dev_priv->vbt.lvds_use_ssc, |
| 409 | dev_priv->vbt.lvds_ssc_freq, |
| 410 | dev_priv->vbt.display_clock_mode, |
| 411 | dev_priv->vbt.fdi_rx_polarity_inverted); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 412 | } |
| 413 | } |
| 414 | |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 415 | static void |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 416 | parse_general_definitions(struct drm_i915_private *dev_priv, |
| 417 | struct bdb_header *bdb) |
| 418 | { |
| 419 | struct bdb_general_definitions *general; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 420 | |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 421 | general = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 422 | if (general) { |
| 423 | u16 block_size = get_blocksize(general); |
| 424 | if (block_size >= sizeof(*general)) { |
| 425 | int bus_pin = general->crt_ddc_gmbus_pin; |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 426 | DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin); |
Daniel Kurtz | 3bd7d90 | 2012-03-28 02:36:14 +0800 | [diff] [blame] | 427 | if (intel_gmbus_is_port_valid(bus_pin)) |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 428 | dev_priv->vbt.crt_ddc_pin = bus_pin; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 429 | } else { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 430 | DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n", |
Daniel Kurtz | 3bd7d90 | 2012-03-28 02:36:14 +0800 | [diff] [blame] | 431 | block_size); |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 432 | } |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | static void |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 437 | parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 438 | struct bdb_header *bdb) |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 439 | { |
| 440 | struct sdvo_device_mapping *p_mapping; |
| 441 | struct bdb_general_definitions *p_defs; |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 442 | union child_device_config *p_child; |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 443 | int i, child_device_num, count; |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 444 | u16 block_size; |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 445 | |
| 446 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 447 | if (!p_defs) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 448 | 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] | 449 | return; |
| 450 | } |
| 451 | /* judge whether the size of child device meets the requirements. |
| 452 | * If the child device size obtained from general definition block |
| 453 | * is different with sizeof(struct child_device_config), skip the |
| 454 | * parsing of sdvo device info |
| 455 | */ |
| 456 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
| 457 | /* different child dev size . Ignore it */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 458 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 459 | return; |
| 460 | } |
| 461 | /* get the block size of general definitions */ |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 462 | block_size = get_blocksize(p_defs); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 463 | /* get the number of child device */ |
| 464 | child_device_num = (block_size - sizeof(*p_defs)) / |
| 465 | sizeof(*p_child); |
| 466 | count = 0; |
| 467 | for (i = 0; i < child_device_num; i++) { |
| 468 | p_child = &(p_defs->devices[i]); |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 469 | if (!p_child->old.device_type) { |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 470 | /* skip the device block if device type is invalid */ |
| 471 | continue; |
| 472 | } |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 473 | if (p_child->old.slave_addr != SLAVE_ADDR1 && |
| 474 | p_child->old.slave_addr != SLAVE_ADDR2) { |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 475 | /* |
| 476 | * If the slave address is neither 0x70 nor 0x72, |
| 477 | * it is not a SDVO device. Skip it. |
| 478 | */ |
| 479 | continue; |
| 480 | } |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 481 | if (p_child->old.dvo_port != DEVICE_PORT_DVOB && |
| 482 | p_child->old.dvo_port != DEVICE_PORT_DVOC) { |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 483 | /* skip the incorrect SDVO port */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 484 | DRM_DEBUG_KMS("Incorrect SDVO port. Skip it\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 485 | continue; |
| 486 | } |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 487 | DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on" |
| 488 | " %s port\n", |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 489 | p_child->old.slave_addr, |
| 490 | (p_child->old.dvo_port == DEVICE_PORT_DVOB) ? |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 491 | "SDVOB" : "SDVOC"); |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 492 | p_mapping = &(dev_priv->sdvo_mappings[p_child->old.dvo_port - 1]); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 493 | if (!p_mapping->initialized) { |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 494 | p_mapping->dvo_port = p_child->old.dvo_port; |
| 495 | p_mapping->slave_addr = p_child->old.slave_addr; |
| 496 | p_mapping->dvo_wiring = p_child->old.dvo_wiring; |
| 497 | p_mapping->ddc_pin = p_child->old.ddc_pin; |
| 498 | p_mapping->i2c_pin = p_child->old.i2c_pin; |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 499 | p_mapping->initialized = 1; |
Adam Jackson | 46eb303 | 2011-06-16 16:36:23 -0400 | [diff] [blame] | 500 | DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n", |
Chris Wilson | e957d77 | 2010-09-24 12:52:03 +0100 | [diff] [blame] | 501 | p_mapping->dvo_port, |
| 502 | p_mapping->slave_addr, |
| 503 | p_mapping->dvo_wiring, |
| 504 | p_mapping->ddc_pin, |
Adam Jackson | 46eb303 | 2011-06-16 16:36:23 -0400 | [diff] [blame] | 505 | p_mapping->i2c_pin); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 506 | } else { |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 507 | DRM_DEBUG_KMS("Maybe one SDVO port is shared by " |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 508 | "two SDVO device.\n"); |
| 509 | } |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 510 | if (p_child->old.slave2_addr) { |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 511 | /* Maybe this is a SDVO device with multiple inputs */ |
| 512 | /* And the mapping info is not added */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 513 | DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this" |
| 514 | " is a SDVO device with multiple inputs.\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 515 | } |
| 516 | count++; |
| 517 | } |
| 518 | |
| 519 | if (!count) { |
| 520 | /* No SDVO device info is found */ |
Zhao Yakui | 28c9773 | 2009-10-09 11:39:41 +0800 | [diff] [blame] | 521 | DRM_DEBUG_KMS("No SDVO device info is found in VBT\n"); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 522 | } |
| 523 | return; |
| 524 | } |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 525 | |
| 526 | static void |
| 527 | parse_driver_features(struct drm_i915_private *dev_priv, |
| 528 | struct bdb_header *bdb) |
| 529 | { |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 530 | struct bdb_driver_features *driver; |
| 531 | |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 532 | driver = find_section(bdb, BDB_DRIVER_FEATURES); |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 533 | if (!driver) |
| 534 | return; |
| 535 | |
Daniel Vetter | 6fca55b | 2013-09-21 00:48:39 +0200 | [diff] [blame] | 536 | if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP) |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 537 | dev_priv->vbt.edp_support = 1; |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 538 | |
Chris Wilson | 5ceb0f9 | 2010-09-24 10:24:28 +0100 | [diff] [blame] | 539 | if (driver->dual_frequency) |
Jesse Barnes | 652c393 | 2009-08-17 13:31:43 -0700 | [diff] [blame] | 540 | dev_priv->render_reclock_avail = true; |
Pradeep Bhat | 83a7280 | 2014-03-28 10:14:57 +0530 | [diff] [blame] | 541 | |
| 542 | DRM_DEBUG_KMS("DRRS State Enabled:%d\n", driver->drrs_enabled); |
| 543 | /* |
| 544 | * If DRRS is not supported, drrs_type has to be set to 0. |
| 545 | * This is because, VBT is configured in such a way that |
| 546 | * static DRRS is 0 and DRRS not supported is represented by |
| 547 | * driver->drrs_enabled=false |
| 548 | */ |
| 549 | if (!driver->drrs_enabled) |
| 550 | dev_priv->vbt.drrs_type = DRRS_NOT_SUPPORTED; |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 551 | } |
| 552 | |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 553 | static void |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 554 | parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
| 555 | { |
| 556 | struct bdb_edp *edp; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 557 | struct edp_power_seq *edp_pps; |
| 558 | struct edp_link_params *edp_link_params; |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 559 | |
| 560 | edp = find_section(bdb, BDB_EDP); |
| 561 | if (!edp) { |
Daniel Vetter | 6fca55b | 2013-09-21 00:48:39 +0200 | [diff] [blame] | 562 | if (dev_priv->vbt.edp_support) |
Jani Nikula | 9a30a61 | 2012-11-12 14:33:45 +0200 | [diff] [blame] | 563 | DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported.\n"); |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 564 | return; |
| 565 | } |
| 566 | |
| 567 | switch ((edp->color_depth >> (panel_type * 2)) & 3) { |
| 568 | case EDP_18BPP: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 569 | dev_priv->vbt.edp_bpp = 18; |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 570 | break; |
| 571 | case EDP_24BPP: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 572 | dev_priv->vbt.edp_bpp = 24; |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 573 | break; |
| 574 | case EDP_30BPP: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 575 | dev_priv->vbt.edp_bpp = 30; |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 576 | break; |
| 577 | } |
Chris Wilson | 5ceb0f9 | 2010-09-24 10:24:28 +0100 | [diff] [blame] | 578 | |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 579 | /* Get the eDP sequencing and link info */ |
| 580 | edp_pps = &edp->power_seqs[panel_type]; |
| 581 | edp_link_params = &edp->link_params[panel_type]; |
Chris Wilson | 5ceb0f9 | 2010-09-24 10:24:28 +0100 | [diff] [blame] | 582 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 583 | dev_priv->vbt.edp_pps = *edp_pps; |
Chris Wilson | 5ceb0f9 | 2010-09-24 10:24:28 +0100 | [diff] [blame] | 584 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 585 | dev_priv->vbt.edp_rate = edp_link_params->rate ? DP_LINK_BW_2_7 : |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 586 | DP_LINK_BW_1_62; |
| 587 | switch (edp_link_params->lanes) { |
| 588 | case 0: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 589 | dev_priv->vbt.edp_lanes = 1; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 590 | break; |
| 591 | case 1: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 592 | dev_priv->vbt.edp_lanes = 2; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 593 | break; |
| 594 | case 3: |
| 595 | default: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 596 | dev_priv->vbt.edp_lanes = 4; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 597 | break; |
| 598 | } |
| 599 | switch (edp_link_params->preemphasis) { |
| 600 | case 0: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 601 | dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_0; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 602 | break; |
| 603 | case 1: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 604 | dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 605 | break; |
| 606 | case 2: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 607 | dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_6; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 608 | break; |
| 609 | case 3: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 610 | dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 611 | break; |
| 612 | } |
| 613 | switch (edp_link_params->vswing) { |
| 614 | case 0: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 615 | dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_400; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 616 | break; |
| 617 | case 1: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 618 | dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_600; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 619 | break; |
| 620 | case 2: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 621 | dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_800; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 622 | break; |
| 623 | case 3: |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 624 | dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_1200; |
Jesse Barnes | 9f0e7ff | 2010-10-07 16:01:14 -0700 | [diff] [blame] | 625 | break; |
| 626 | } |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 627 | } |
| 628 | |
| 629 | static void |
Shobhit Kumar | d17c544 | 2013-08-27 15:12:25 +0300 | [diff] [blame] | 630 | parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb) |
| 631 | { |
| 632 | struct bdb_mipi *mipi; |
| 633 | |
Shobhit Kumar | ea9a6ba | 2014-02-28 11:18:46 +0530 | [diff] [blame] | 634 | mipi = find_section(bdb, BDB_MIPI_CONFIG); |
Shobhit Kumar | d17c544 | 2013-08-27 15:12:25 +0300 | [diff] [blame] | 635 | if (!mipi) { |
| 636 | DRM_DEBUG_KMS("No MIPI BDB found"); |
| 637 | return; |
| 638 | } |
| 639 | |
| 640 | /* XXX: add more info */ |
Shobhit Kumar | ea9a6ba | 2014-02-28 11:18:46 +0530 | [diff] [blame] | 641 | dev_priv->vbt.dsi.panel_id = MIPI_DSI_GENERIC_PANEL_ID; |
Shobhit Kumar | d17c544 | 2013-08-27 15:12:25 +0300 | [diff] [blame] | 642 | } |
| 643 | |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 644 | static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, |
| 645 | struct bdb_header *bdb) |
| 646 | { |
| 647 | union child_device_config *it, *child = NULL; |
| 648 | struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port]; |
| 649 | uint8_t hdmi_level_shift; |
| 650 | int i, j; |
Paulo Zanoni | 554d6af | 2013-09-12 17:10:11 -0300 | [diff] [blame] | 651 | bool is_dvi, is_hdmi, is_dp, is_edp, is_crt; |
Paulo Zanoni | 6bf19e7 | 2013-09-12 17:07:55 -0300 | [diff] [blame] | 652 | uint8_t aux_channel; |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 653 | /* Each DDI port can have more than one value on the "DVO Port" field, |
| 654 | * so look for all the possible values for each port and abort if more |
| 655 | * than one is found. */ |
| 656 | int dvo_ports[][2] = { |
| 657 | {DVO_PORT_HDMIA, DVO_PORT_DPA}, |
| 658 | {DVO_PORT_HDMIB, DVO_PORT_DPB}, |
| 659 | {DVO_PORT_HDMIC, DVO_PORT_DPC}, |
| 660 | {DVO_PORT_HDMID, DVO_PORT_DPD}, |
| 661 | {DVO_PORT_CRT, -1 /* Port E can only be DVO_PORT_CRT */ }, |
| 662 | }; |
| 663 | |
| 664 | /* Find the child device to use, abort if more than one found. */ |
| 665 | for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { |
| 666 | it = dev_priv->vbt.child_dev + i; |
| 667 | |
| 668 | for (j = 0; j < 2; j++) { |
| 669 | if (dvo_ports[port][j] == -1) |
| 670 | break; |
| 671 | |
| 672 | if (it->common.dvo_port == dvo_ports[port][j]) { |
| 673 | if (child) { |
| 674 | DRM_DEBUG_KMS("More than one child device for port %c in VBT.\n", |
| 675 | port_name(port)); |
| 676 | return; |
| 677 | } |
| 678 | child = it; |
| 679 | } |
| 680 | } |
| 681 | } |
| 682 | if (!child) |
| 683 | return; |
| 684 | |
Paulo Zanoni | 6bf19e7 | 2013-09-12 17:07:55 -0300 | [diff] [blame] | 685 | aux_channel = child->raw[25]; |
| 686 | |
Ville Syrjälä | 78eb06c | 2013-11-01 20:32:07 +0200 | [diff] [blame] | 687 | is_dvi = child->common.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING; |
| 688 | is_dp = child->common.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT; |
| 689 | is_crt = child->common.device_type & DEVICE_TYPE_ANALOG_OUTPUT; |
| 690 | is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0; |
| 691 | is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR); |
Paulo Zanoni | 554d6af | 2013-09-12 17:10:11 -0300 | [diff] [blame] | 692 | |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 693 | info->supports_dvi = is_dvi; |
| 694 | info->supports_hdmi = is_hdmi; |
| 695 | info->supports_dp = is_dp; |
| 696 | |
Paulo Zanoni | 554d6af | 2013-09-12 17:10:11 -0300 | [diff] [blame] | 697 | DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d\n", |
| 698 | port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt); |
| 699 | |
| 700 | if (is_edp && is_dvi) |
| 701 | DRM_DEBUG_KMS("Internal DP port %c is TMDS compatible\n", |
| 702 | port_name(port)); |
| 703 | if (is_crt && port != PORT_E) |
| 704 | DRM_DEBUG_KMS("Port %c is analog\n", port_name(port)); |
| 705 | if (is_crt && (is_dvi || is_dp)) |
| 706 | DRM_DEBUG_KMS("Analog port %c is also DP or TMDS compatible\n", |
| 707 | port_name(port)); |
| 708 | if (is_dvi && (port == PORT_A || port == PORT_E)) |
| 709 | DRM_DEBUG_KMS("Port %c is TMDS compabile\n", port_name(port)); |
| 710 | if (!is_dvi && !is_dp && !is_crt) |
| 711 | DRM_DEBUG_KMS("Port %c is not DP/TMDS/CRT compatible\n", |
| 712 | port_name(port)); |
| 713 | if (is_edp && (port == PORT_B || port == PORT_C || port == PORT_E)) |
| 714 | DRM_DEBUG_KMS("Port %c is internal DP\n", port_name(port)); |
Paulo Zanoni | 6bf19e7 | 2013-09-12 17:07:55 -0300 | [diff] [blame] | 715 | |
| 716 | if (is_dvi) { |
| 717 | if (child->common.ddc_pin == 0x05 && port != PORT_B) |
| 718 | DRM_DEBUG_KMS("Unexpected DDC pin for port B\n"); |
| 719 | if (child->common.ddc_pin == 0x04 && port != PORT_C) |
| 720 | DRM_DEBUG_KMS("Unexpected DDC pin for port C\n"); |
| 721 | if (child->common.ddc_pin == 0x06 && port != PORT_D) |
| 722 | DRM_DEBUG_KMS("Unexpected DDC pin for port D\n"); |
| 723 | } |
| 724 | |
| 725 | if (is_dp) { |
| 726 | if (aux_channel == 0x40 && port != PORT_A) |
| 727 | DRM_DEBUG_KMS("Unexpected AUX channel for port A\n"); |
| 728 | if (aux_channel == 0x10 && port != PORT_B) |
| 729 | DRM_DEBUG_KMS("Unexpected AUX channel for port B\n"); |
| 730 | if (aux_channel == 0x20 && port != PORT_C) |
| 731 | DRM_DEBUG_KMS("Unexpected AUX channel for port C\n"); |
| 732 | if (aux_channel == 0x30 && port != PORT_D) |
| 733 | DRM_DEBUG_KMS("Unexpected AUX channel for port D\n"); |
| 734 | } |
| 735 | |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 736 | if (bdb->version >= 158) { |
| 737 | /* The VBT HDMI level shift values match the table we have. */ |
| 738 | hdmi_level_shift = child->raw[7] & 0xF; |
| 739 | if (hdmi_level_shift < 0xC) { |
| 740 | DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n", |
| 741 | port_name(port), |
| 742 | hdmi_level_shift); |
| 743 | info->hdmi_level_shift = hdmi_level_shift; |
| 744 | } |
| 745 | } |
| 746 | } |
| 747 | |
| 748 | static void parse_ddi_ports(struct drm_i915_private *dev_priv, |
| 749 | struct bdb_header *bdb) |
| 750 | { |
| 751 | struct drm_device *dev = dev_priv->dev; |
| 752 | enum port port; |
| 753 | |
| 754 | if (!HAS_DDI(dev)) |
| 755 | return; |
| 756 | |
| 757 | if (!dev_priv->vbt.child_dev_num) |
| 758 | return; |
| 759 | |
| 760 | if (bdb->version < 155) |
| 761 | return; |
| 762 | |
| 763 | for (port = PORT_A; port < I915_MAX_PORTS; port++) |
| 764 | parse_ddi_port(dev_priv, port, bdb); |
| 765 | } |
| 766 | |
Shobhit Kumar | d17c544 | 2013-08-27 15:12:25 +0300 | [diff] [blame] | 767 | static void |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 768 | parse_device_mapping(struct drm_i915_private *dev_priv, |
| 769 | struct bdb_header *bdb) |
| 770 | { |
| 771 | struct bdb_general_definitions *p_defs; |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 772 | union child_device_config *p_child, *child_dev_ptr; |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 773 | int i, child_device_num, count; |
| 774 | u16 block_size; |
| 775 | |
| 776 | p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS); |
| 777 | if (!p_defs) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 778 | 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] | 779 | return; |
| 780 | } |
| 781 | /* judge whether the size of child device meets the requirements. |
| 782 | * If the child device size obtained from general definition block |
| 783 | * is different with sizeof(struct child_device_config), skip the |
| 784 | * parsing of sdvo device info |
| 785 | */ |
| 786 | if (p_defs->child_dev_size != sizeof(*p_child)) { |
| 787 | /* different child dev size . Ignore it */ |
| 788 | DRM_DEBUG_KMS("different child size is found. Invalid.\n"); |
| 789 | return; |
| 790 | } |
| 791 | /* get the block size of general definitions */ |
| 792 | block_size = get_blocksize(p_defs); |
| 793 | /* get the number of child device */ |
| 794 | child_device_num = (block_size - sizeof(*p_defs)) / |
| 795 | sizeof(*p_child); |
| 796 | count = 0; |
| 797 | /* get the number of child device that is present */ |
| 798 | for (i = 0; i < child_device_num; i++) { |
| 799 | p_child = &(p_defs->devices[i]); |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 800 | if (!p_child->common.device_type) { |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 801 | /* skip the device block if device type is invalid */ |
| 802 | continue; |
| 803 | } |
| 804 | count++; |
| 805 | } |
| 806 | if (!count) { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 807 | DRM_DEBUG_KMS("no child dev is parsed from VBT\n"); |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 808 | return; |
| 809 | } |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 810 | dev_priv->vbt.child_dev = kcalloc(count, sizeof(*p_child), GFP_KERNEL); |
| 811 | if (!dev_priv->vbt.child_dev) { |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 812 | DRM_DEBUG_KMS("No memory space for child device\n"); |
| 813 | return; |
| 814 | } |
| 815 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 816 | dev_priv->vbt.child_dev_num = count; |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 817 | count = 0; |
| 818 | for (i = 0; i < child_device_num; i++) { |
| 819 | p_child = &(p_defs->devices[i]); |
Paulo Zanoni | 768f69c | 2013-09-11 18:02:47 -0300 | [diff] [blame] | 820 | if (!p_child->common.device_type) { |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 821 | /* skip the device block if device type is invalid */ |
| 822 | continue; |
| 823 | } |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 824 | child_dev_ptr = dev_priv->vbt.child_dev + count; |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 825 | count++; |
| 826 | memcpy((void *)child_dev_ptr, (void *)p_child, |
| 827 | sizeof(*p_child)); |
| 828 | } |
| 829 | return; |
| 830 | } |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 831 | |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 832 | static void |
| 833 | init_vbt_defaults(struct drm_i915_private *dev_priv) |
| 834 | { |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 835 | struct drm_device *dev = dev_priv->dev; |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 836 | enum port port; |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 837 | |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 838 | dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC; |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 839 | |
| 840 | /* LFP panel data */ |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 841 | dev_priv->vbt.lvds_dither = 1; |
| 842 | dev_priv->vbt.lvds_vbt = 0; |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 843 | |
| 844 | /* SDVO panel data */ |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 845 | dev_priv->vbt.sdvo_lvds_vbt_mode = NULL; |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 846 | |
| 847 | /* general features */ |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 848 | dev_priv->vbt.int_tv_support = 1; |
| 849 | dev_priv->vbt.int_crt_support = 1; |
Bryan Freed | 9a4114f | 2011-01-12 13:38:39 -0800 | [diff] [blame] | 850 | |
| 851 | /* Default to using SSC */ |
Rodrigo Vivi | 41aa344 | 2013-05-09 20:03:18 -0300 | [diff] [blame] | 852 | dev_priv->vbt.lvds_use_ssc = 1; |
Duncan Laurie | f69e515 | 2013-11-13 17:59:43 -0800 | [diff] [blame] | 853 | /* |
| 854 | * Core/SandyBridge/IvyBridge use alternative (120MHz) reference |
| 855 | * clock for LVDS. |
| 856 | */ |
| 857 | dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, |
| 858 | !HAS_PCH_SPLIT(dev)); |
Ville Syrjälä | e91e941 | 2013-12-09 18:54:16 +0200 | [diff] [blame] | 859 | DRM_DEBUG_KMS("Set default to SSC at %d kHz\n", dev_priv->vbt.lvds_ssc_freq); |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 860 | |
| 861 | for (port = PORT_A; port < I915_MAX_PORTS; port++) { |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 862 | struct ddi_vbt_port_info *info = |
| 863 | &dev_priv->vbt.ddi_port_info[port]; |
| 864 | |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 865 | /* Recommended BSpec default: 800mV 0dB. */ |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 866 | info->hdmi_level_shift = 6; |
| 867 | |
| 868 | info->supports_dvi = (port != PORT_A && port != PORT_E); |
| 869 | info->supports_hdmi = info->supports_dvi; |
| 870 | info->supports_dp = (port != PORT_E); |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 871 | } |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 872 | } |
| 873 | |
Daniel Vetter | 25e341c | 2012-03-24 23:51:30 +0100 | [diff] [blame] | 874 | static int __init intel_no_opregion_vbt_callback(const struct dmi_system_id *id) |
| 875 | { |
| 876 | DRM_DEBUG_KMS("Falling back to manually reading VBT from " |
| 877 | "VBIOS ROM for %s\n", |
| 878 | id->ident); |
| 879 | return 1; |
| 880 | } |
| 881 | |
| 882 | static const struct dmi_system_id intel_no_opregion_vbt[] = { |
| 883 | { |
| 884 | .callback = intel_no_opregion_vbt_callback, |
| 885 | .ident = "ThinkCentre A57", |
| 886 | .matches = { |
| 887 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 888 | DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), |
| 889 | }, |
| 890 | }, |
| 891 | { } |
| 892 | }; |
| 893 | |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 894 | /** |
Bryan Freed | 6d139a8 | 2010-10-14 09:14:51 +0100 | [diff] [blame] | 895 | * intel_parse_bios - find VBT and initialize settings from the BIOS |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 896 | * @dev: DRM device |
| 897 | * |
| 898 | * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers |
| 899 | * to appropriate values. |
| 900 | * |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 901 | * Returns 0 on success, nonzero on failure. |
| 902 | */ |
Dan Carpenter | 0317c6c | 2012-06-27 12:10:30 +0300 | [diff] [blame] | 903 | int |
Bryan Freed | 6d139a8 | 2010-10-14 09:14:51 +0100 | [diff] [blame] | 904 | intel_parse_bios(struct drm_device *dev) |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 905 | { |
| 906 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 907 | struct pci_dev *pdev = dev->pdev; |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 908 | struct bdb_header *bdb = NULL; |
| 909 | u8 __iomem *bios = NULL; |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 910 | |
Ben Widawsky | ab5c608 | 2013-04-05 13:12:41 -0700 | [diff] [blame] | 911 | if (HAS_PCH_NOP(dev)) |
| 912 | return -ENODEV; |
| 913 | |
Simon Que | 6a04002 | 2010-09-30 09:36:39 +0100 | [diff] [blame] | 914 | init_vbt_defaults(dev_priv); |
Chris Wilson | f899fc6 | 2010-07-20 15:44:45 -0700 | [diff] [blame] | 915 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 916 | /* XXX Should this validation be moved to intel_opregion.c? */ |
Daniel Vetter | 25e341c | 2012-03-24 23:51:30 +0100 | [diff] [blame] | 917 | if (!dmi_check_system(intel_no_opregion_vbt) && dev_priv->opregion.vbt) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 918 | struct vbt_header *vbt = dev_priv->opregion.vbt; |
| 919 | if (memcmp(vbt->signature, "$VBT", 4) == 0) { |
Keith Packard | 562396b | 2011-09-22 12:32:35 -0700 | [diff] [blame] | 920 | DRM_DEBUG_KMS("Using VBT from OpRegion: %20s\n", |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 921 | vbt->signature); |
| 922 | bdb = (struct bdb_header *)((char *)vbt + vbt->bdb_offset); |
| 923 | } else |
| 924 | dev_priv->opregion.vbt = NULL; |
| 925 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 926 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 927 | if (bdb == NULL) { |
| 928 | struct vbt_header *vbt = NULL; |
| 929 | size_t size; |
| 930 | int i; |
| 931 | |
| 932 | bios = pci_map_rom(pdev, &size); |
| 933 | if (!bios) |
| 934 | return -1; |
| 935 | |
| 936 | /* Scour memory looking for the VBT signature */ |
| 937 | for (i = 0; i + 4 < size; i++) { |
| 938 | if (!memcmp(bios + i, "$VBT", 4)) { |
| 939 | vbt = (struct vbt_header *)(bios + i); |
| 940 | break; |
| 941 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 942 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 943 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 944 | if (!vbt) { |
Chris Wilson | bd45545 | 2012-02-24 16:53:28 +0000 | [diff] [blame] | 945 | DRM_DEBUG_DRIVER("VBT signature missing\n"); |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 946 | pci_unmap_rom(pdev, bios); |
| 947 | return -1; |
| 948 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 949 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 950 | bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset); |
| 951 | } |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 952 | |
| 953 | /* Grab useful general definitions */ |
| 954 | parse_general_features(dev_priv, bdb); |
David Müller (ELSOFT AG) | db54501 | 2009-08-29 08:54:45 +0200 | [diff] [blame] | 955 | parse_general_definitions(dev_priv, bdb); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 956 | parse_lfp_panel_data(dev_priv, bdb); |
Jani Nikula | f00076d | 2013-12-14 20:38:29 -0200 | [diff] [blame] | 957 | parse_lfp_backlight(dev_priv, bdb); |
Ma Ling | 8863170 | 2009-05-13 11:19:55 +0800 | [diff] [blame] | 958 | parse_sdvo_panel_data(dev_priv, bdb); |
yakui_zhao | 9b9d172 | 2009-05-31 17:17:17 +0800 | [diff] [blame] | 959 | parse_sdvo_device_mapping(dev_priv, bdb); |
Zhao Yakui | 6363ee6 | 2009-11-24 09:48:44 +0800 | [diff] [blame] | 960 | parse_device_mapping(dev_priv, bdb); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 961 | parse_driver_features(dev_priv, bdb); |
Zhenyu Wang | 500a8cc | 2010-01-13 11:19:52 +0800 | [diff] [blame] | 962 | parse_edp(dev_priv, bdb); |
Shobhit Kumar | d17c544 | 2013-08-27 15:12:25 +0300 | [diff] [blame] | 963 | parse_mipi(dev_priv, bdb); |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 964 | parse_ddi_ports(dev_priv, bdb); |
Zhenyu Wang | 32f9d65 | 2009-07-24 01:00:32 +0800 | [diff] [blame] | 965 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 966 | if (bios) |
| 967 | pci_unmap_rom(pdev, bios); |
Jesse Barnes | 79e5394 | 2008-11-07 14:24:08 -0800 | [diff] [blame] | 968 | |
| 969 | return 0; |
| 970 | } |
Bryan Freed | 6d139a8 | 2010-10-14 09:14:51 +0100 | [diff] [blame] | 971 | |
| 972 | /* Ensure that vital registers have been initialised, even if the BIOS |
| 973 | * is absent or just failing to do its job. |
| 974 | */ |
| 975 | void intel_setup_bios(struct drm_device *dev) |
| 976 | { |
| 977 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 978 | |
| 979 | /* Set the Panel Power On/Off timings if uninitialized. */ |
Damien Lespiau | 42d42e7 | 2012-10-31 19:23:16 +0000 | [diff] [blame] | 980 | if (!HAS_PCH_SPLIT(dev) && |
| 981 | I915_READ(PP_ON_DELAYS) == 0 && I915_READ(PP_OFF_DELAYS) == 0) { |
Bryan Freed | 6d139a8 | 2010-10-14 09:14:51 +0100 | [diff] [blame] | 982 | /* Set T2 to 40ms and T5 to 200ms */ |
| 983 | I915_WRITE(PP_ON_DELAYS, 0x019007d0); |
| 984 | |
| 985 | /* Set T3 to 35ms and Tx to 200ms */ |
| 986 | I915_WRITE(PP_OFF_DELAYS, 0x015e07d0); |
| 987 | } |
| 988 | } |