2 * Copyright © 2006 Intel Corporation
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:
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
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
24 * Eric Anholt <eric@anholt.net>
34 u8 signature[20]; /**< Always starts with 'VBT$' */
35 u16 version; /**< decimal */
36 u16 header_size; /**< in bytes */
37 u16 vbt_size; /**< in bytes */
40 u32 bdb_offset; /**< from beginning of VBT */
41 u32 aim_offset[4]; /**< from beginning of VBT */
42 } __attribute__((packed));
45 u8 signature[16]; /**< Always 'BIOS_DATA_BLOCK' */
46 u16 version; /**< decimal */
47 u16 header_size; /**< in bytes */
48 u16 bdb_size; /**< in bytes */
51 /* strictly speaking, this is a "skip" block, but it has interesting info */
53 u8 type; /* 0 == desktop, 1 == mobile */
58 u8 rsvd2:6; /* finish byte */
65 u8 rsvd4; /* popup memory size */
67 u8 rsvd5; /* is crt already on ddc2 */
68 } __attribute__((packed));
71 * There are several types of BIOS data blocks (BDBs), each block has
72 * an ID and size in the first 3 bytes (ID in first, size in next 2).
73 * Known types are listed below.
75 #define BDB_GENERAL_FEATURES 1
76 #define BDB_GENERAL_DEFINITIONS 2
77 #define BDB_OLD_TOGGLE_LIST 3
78 #define BDB_MODE_SUPPORT_LIST 4
79 #define BDB_GENERIC_MODE_TABLE 5
80 #define BDB_EXT_MMIO_REGS 6
82 #define BDB_SWF_MMIO 8
83 #define BDB_DOT_CLOCK_TABLE 9
84 #define BDB_MODE_REMOVAL_TABLE 10
85 #define BDB_CHILD_DEVICE_TABLE 11
86 #define BDB_DRIVER_FEATURES 12
87 #define BDB_DRIVER_PERSISTENCE 13
88 #define BDB_EXT_TABLE_PTRS 14
89 #define BDB_DOT_CLOCK_OVERRIDE 15
90 #define BDB_DISPLAY_SELECT 16
92 #define BDB_DRIVER_ROTATION 18
93 #define BDB_DISPLAY_REMOVE 19
94 #define BDB_OEM_CUSTOM 20
95 #define BDB_EFP_LIST 21 /* workarounds for VGA hsync/vsync */
96 #define BDB_SDVO_LVDS_OPTIONS 22
97 #define BDB_SDVO_PANEL_DTDS 23
98 #define BDB_SDVO_LVDS_PNP_IDS 24
99 #define BDB_SDVO_LVDS_POWER_SEQ 25
100 #define BDB_TV_OPTIONS 26
101 #define BDB_LVDS_OPTIONS 40
102 #define BDB_LVDS_LFP_DATA_PTRS 41
103 #define BDB_LVDS_LFP_DATA 42
104 #define BDB_LVDS_BACKLIGHT 43
105 #define BDB_LVDS_POWER 44
106 #define BDB_SKIP 254 /* VBIOS private block, ignore */
108 struct bdb_general_features {
117 u8 download_ext_vbt:1;
120 u8 enable_lfp_on_override:1;
121 u8 disable_ssc_ddt:1;
122 u8 rsvd8:3; /* finish byte */
125 u8 disable_smooth_vision:1;
127 u8 rsvd9:6; /* finish byte */
130 u8 legacy_monitor_detect;
133 u8 int_crt_support:1;
135 u8 rsvd11:6; /* finish byte */
136 } __attribute__((packed));
138 struct bdb_general_definitions {
140 u8 crt_ddc_gmbus_pin;
144 u8 skip_boot_crt_detect:1;
146 u8 rsvd1:5; /* finish byte */
148 /* boot device bits */
153 u8 tv_or_lvds_info[33];
158 /* may be another device block here on some platforms */
161 struct bdb_lvds_options {
164 /* LVDS capabilities, stored in a dword */
166 u8 pfit_text_mode_enhanced:1;
167 u8 pfit_gfx_mode_enhanced:1;
168 u8 pfit_ratio_auto:1;
173 } __attribute__((packed));
175 /* LFP pointer table contains entries to the struct below */
176 struct bdb_lvds_lfp_data_ptr {
177 u16 fp_timing_offset; /* offsets are from start of bdb */
179 u16 dvo_timing_offset;
181 u16 panel_pnp_id_offset;
183 } __attribute__((packed));
185 struct bdb_lvds_lfp_data_ptrs {
186 u8 lvds_entries; /* followed by one or more lvds_data_ptr structs */
187 struct bdb_lvds_lfp_data_ptr ptr[16];
188 } __attribute__((packed));
190 /* LFP data has 3 blocks per entry */
191 struct lvds_fp_timing {
201 u32 pp_cycle_reg_val;
205 } __attribute__((packed));
207 struct lvds_dvo_timing {
208 u16 clock; /**< In 10khz */
218 u8 hsync_pulse_width;
219 u8 vsync_pulse_width:4;
233 } __attribute__((packed));
241 } __attribute__((packed));
243 struct bdb_lvds_lfp_data_entry {
244 struct lvds_fp_timing fp_timing;
245 struct lvds_dvo_timing dvo_timing;
246 struct lvds_pnp_id pnp_id;
247 } __attribute__((packed));
249 struct bdb_lvds_lfp_data {
250 struct bdb_lvds_lfp_data_entry data[16];
251 } __attribute__((packed));
253 struct aimdb_header {
257 u16 aimdb_header_size;
259 } __attribute__((packed));
264 } __attribute__((packed));
266 struct vch_panel_data {
267 u16 fp_timing_offset;
269 u16 dvo_timing_offset;
271 u16 text_fitting_offset;
272 u8 text_fitting_size;
273 u16 graphics_fitting_offset;
274 u8 graphics_fitting_size;
275 } __attribute__((packed));
278 struct aimdb_block aimdb_block;
279 struct vch_panel_data panels[16];
280 } __attribute__((packed));
282 struct bdb_sdvo_lvds_options {
284 u8 h40_set_panel_type;
289 u8 sclalarcoeff_tab_row_num;
290 u8 sclalarcoeff_tab_row_size;
292 u8 panel_misc_bits_1;
293 u8 panel_misc_bits_2;
294 u8 panel_misc_bits_3;
295 u8 panel_misc_bits_4;
296 } __attribute__((packed));
299 bool intel_init_bios(struct drm_device *dev);
302 * Driver<->VBIOS interaction occurs through scratch bits in
306 /* GR18 bits are set on display switch and hotkey events */
307 #define GR18_DRIVER_SWITCH_EN (1<<7) /* 0: VBIOS control, 1: driver control */
308 #define GR18_HOTKEY_MASK 0x78 /* See also SWF4 15:0 */
309 #define GR18_HK_NONE (0x0<<3)
310 #define GR18_HK_LFP_STRETCH (0x1<<3)
311 #define GR18_HK_TOGGLE_DISP (0x2<<3)
312 #define GR18_HK_DISP_SWITCH (0x4<<3) /* see SWF14 15:0 for what to enable */
313 #define GR18_HK_POPUP_DISABLED (0x6<<3)
314 #define GR18_HK_POPUP_ENABLED (0x7<<3)
315 #define GR18_HK_PFIT (0x8<<3)
316 #define GR18_HK_APM_CHANGE (0xa<<3)
317 #define GR18_HK_MULTIPLE (0xc<<3)
318 #define GR18_USER_INT_EN (1<<2)
319 #define GR18_A0000_FLUSH_EN (1<<1)
320 #define GR18_SMM_EN (1<<0)
322 /* Set by driver, cleared by VBIOS */
323 #define SWF00_YRES_SHIFT 16
324 #define SWF00_XRES_SHIFT 0
325 #define SWF00_RES_MASK 0xffff
327 /* Set by VBIOS at boot time and driver at runtime */
328 #define SWF01_TV2_FORMAT_SHIFT 8
329 #define SWF01_TV1_FORMAT_SHIFT 0
330 #define SWF01_TV_FORMAT_MASK 0xffff
332 #define SWF10_VBIOS_BLC_I2C_EN (1<<29)
333 #define SWF10_GTT_OVERRIDE_EN (1<<28)
334 #define SWF10_LFP_DPMS_OVR (1<<27) /* override DPMS on display switch */
335 #define SWF10_ACTIVE_TOGGLE_LIST_MASK (7<<24)
336 #define SWF10_OLD_TOGGLE 0x0
337 #define SWF10_TOGGLE_LIST_1 0x1
338 #define SWF10_TOGGLE_LIST_2 0x2
339 #define SWF10_TOGGLE_LIST_3 0x3
340 #define SWF10_TOGGLE_LIST_4 0x4
341 #define SWF10_PANNING_EN (1<<23)
342 #define SWF10_DRIVER_LOADED (1<<22)
343 #define SWF10_EXTENDED_DESKTOP (1<<21)
344 #define SWF10_EXCLUSIVE_MODE (1<<20)
345 #define SWF10_OVERLAY_EN (1<<19)
346 #define SWF10_PLANEB_HOLDOFF (1<<18)
347 #define SWF10_PLANEA_HOLDOFF (1<<17)
348 #define SWF10_VGA_HOLDOFF (1<<16)
349 #define SWF10_ACTIVE_DISP_MASK 0xffff
350 #define SWF10_PIPEB_LFP2 (1<<15)
351 #define SWF10_PIPEB_EFP2 (1<<14)
352 #define SWF10_PIPEB_TV2 (1<<13)
353 #define SWF10_PIPEB_CRT2 (1<<12)
354 #define SWF10_PIPEB_LFP (1<<11)
355 #define SWF10_PIPEB_EFP (1<<10)
356 #define SWF10_PIPEB_TV (1<<9)
357 #define SWF10_PIPEB_CRT (1<<8)
358 #define SWF10_PIPEA_LFP2 (1<<7)
359 #define SWF10_PIPEA_EFP2 (1<<6)
360 #define SWF10_PIPEA_TV2 (1<<5)
361 #define SWF10_PIPEA_CRT2 (1<<4)
362 #define SWF10_PIPEA_LFP (1<<3)
363 #define SWF10_PIPEA_EFP (1<<2)
364 #define SWF10_PIPEA_TV (1<<1)
365 #define SWF10_PIPEA_CRT (1<<0)
367 #define SWF11_MEMORY_SIZE_SHIFT 16
368 #define SWF11_SV_TEST_EN (1<<15)
369 #define SWF11_IS_AGP (1<<14)
370 #define SWF11_DISPLAY_HOLDOFF (1<<13)
371 #define SWF11_DPMS_REDUCED (1<<12)
372 #define SWF11_IS_VBE_MODE (1<<11)
373 #define SWF11_PIPEB_ACCESS (1<<10) /* 0 here means pipe a */
374 #define SWF11_DPMS_MASK 0x07
375 #define SWF11_DPMS_OFF (1<<2)
376 #define SWF11_DPMS_SUSPEND (1<<1)
377 #define SWF11_DPMS_STANDBY (1<<0)
378 #define SWF11_DPMS_ON 0
380 #define SWF14_GFX_PFIT_EN (1<<31)
381 #define SWF14_TEXT_PFIT_EN (1<<30)
382 #define SWF14_LID_STATUS_CLOSED (1<<29) /* 0 here means open */
383 #define SWF14_POPUP_EN (1<<28)
384 #define SWF14_DISPLAY_HOLDOFF (1<<27)
385 #define SWF14_DISP_DETECT_EN (1<<26)
386 #define SWF14_DOCKING_STATUS_DOCKED (1<<25) /* 0 here means undocked */
387 #define SWF14_DRIVER_STATUS (1<<24)
388 #define SWF14_OS_TYPE_WIN9X (1<<23)
389 #define SWF14_OS_TYPE_WINNT (1<<22)
391 #define SWF14_PM_TYPE_MASK 0x00070000
392 #define SWF14_PM_ACPI_VIDEO (0x4 << 16)
393 #define SWF14_PM_ACPI (0x3 << 16)
394 #define SWF14_PM_APM_12 (0x2 << 16)
395 #define SWF14_PM_APM_11 (0x1 << 16)
396 #define SWF14_HK_REQUEST_MASK 0x0000ffff /* see GR18 6:3 for event type */
397 /* if GR18 indicates a display switch */
398 #define SWF14_DS_PIPEB_LFP2_EN (1<<15)
399 #define SWF14_DS_PIPEB_EFP2_EN (1<<14)
400 #define SWF14_DS_PIPEB_TV2_EN (1<<13)
401 #define SWF14_DS_PIPEB_CRT2_EN (1<<12)
402 #define SWF14_DS_PIPEB_LFP_EN (1<<11)
403 #define SWF14_DS_PIPEB_EFP_EN (1<<10)
404 #define SWF14_DS_PIPEB_TV_EN (1<<9)
405 #define SWF14_DS_PIPEB_CRT_EN (1<<8)
406 #define SWF14_DS_PIPEA_LFP2_EN (1<<7)
407 #define SWF14_DS_PIPEA_EFP2_EN (1<<6)
408 #define SWF14_DS_PIPEA_TV2_EN (1<<5)
409 #define SWF14_DS_PIPEA_CRT2_EN (1<<4)
410 #define SWF14_DS_PIPEA_LFP_EN (1<<3)
411 #define SWF14_DS_PIPEA_EFP_EN (1<<2)
412 #define SWF14_DS_PIPEA_TV_EN (1<<1)
413 #define SWF14_DS_PIPEA_CRT_EN (1<<0)
414 /* if GR18 indicates a panel fitting request */
415 #define SWF14_PFIT_EN (1<<0) /* 0 means disable */
416 /* if GR18 indicates an APM change request */
417 #define SWF14_APM_HIBERNATE 0x4
418 #define SWF14_APM_SUSPEND 0x3
419 #define SWF14_APM_STANDBY 0x1
420 #define SWF14_APM_RESTORE 0x0
422 #endif /* _I830_BIOS_H_ */