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/*
* Copyright © 2006 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#ifndef _I830_BIOS_H_
#define _I830_BIOS_H_
#include <stdint.h>
#include <xf86str.h>
struct vbt_header {
char signature[20]; /**< Always starts with 'VBT$' */
uint16_t version; /**< decimal */
uint16_t header_size; /**< in bytes */
uint16_t vbt_size; /**< in bytes */
uint8_t vbt_checksum;
uint8_t reserved0;
uint32_t bdb_offset; /**< from beginning of VBT */
uint32_t aim_offset[4]; /**< from beginning of VBT */
} __attribute__((packed));
struct bdb_header {
char signature[16]; /**< Always 'BIOS_DATA_BLOCK' */
uint16_t version; /**< decimal */
uint16_t header_size; /**< in bytes */
uint16_t bdb_size; /**< in bytes */
} __attribute__((packed));
/*
* There are several types of BIOS data blocks (BDBs), each block has
* an ID and size in the first 3 bytes (ID in first, size in next 2).
* Known types are listed below.
*/
#define BDB_GENERAL_FEATURES 1
#define BDB_GENERAL_DEFINITIONS 2
#define BDB_OLD_TOGGLE_LIST 3
#define BDB_MODE_SUPPORT_LIST 4
#define BDB_GENERIC_MODE_TABLE 5
#define BDB_EXT_MMIO_REGS 6
#define BDB_SWF_IO 7
#define BDB_SWF_MMIO 8
#define BDB_DOT_CLOCK_TABLE 9
#define BDB_MODE_REMOVAL_TABLE 10
#define BDB_CHILD_DEVICE_TABLE 11
#define BDB_DRIVER_FEATURES 12
#define BDB_DRIVER_PERSISTENCE 13
#define BDB_EXT_TABLE_PTRS 14
#define BDB_DOT_CLOCK_OVERRIDE 15
#define BDB_DISPLAY_SELECT 16
/* 17 rsvd */
#define BDB_DRIVER_ROTATION 18
#define BDB_DISPLAY_REMOVE 19
#define BDB_OEM_CUSTOM 20
#define BDB_EFP_LIST 21 /* workarounds for VGA hsync/vsync */
#define BDB_SDVO_LVDS_OPTIONS 22
#define BDB_SDVO_PANEL_DTDS 23
#define BDB_SDVO_LVDS_PNP_IDS 24
#define BDB_SDVO_LVDS_POWER_SEQ 25
#define BDB_TV_OPTIONS 26
#define BDB_LVDS_OPTIONS 40
#define BDB_LVDS_LFP_DATA_PTRS 41
#define BDB_LVDS_LFP_DATA 42
#define BDB_LVDS_BACKLIGHT 43
#define BDB_LVDS_POWER 44
#define BDB_SKIP 254 /* VBIOS private block, ignore */
struct bdb_general_features {
/* bits 1 */
unsigned char panel_fitting:2;
unsigned char flexaim:1;
unsigned char msg_enable:1;
unsigned char clear_screen:3;
unsigned char color_flip:1;
/* bits 2 */
unsigned char download_ext_vbt:1;
unsigned char enable_ssc:1;
unsigned char ssc_freq:1;
unsigned char enable_lfp_on_override:1;
unsigned char disable_ssc_ddt:1;
unsigned char rsvd8:3; /* finish byte */
/* bits 3 */
unsigned char disable_smooth_vision:1;
unsigned char single_dvi:1;
unsigned char rsvd9:6; /* finish byte */
/* bits 4 */
unsigned char legacy_monitor_detect;
/* bits 5 */
unsigned char int_crt_support:1;
unsigned char int_tv_support:1;
unsigned char rsvd11:6; /* finish byte */
} __attribute__((packed));
struct bdb_general_definitions {
/* DDC GPIO */
unsigned char crt_ddc_gmbus_pin;
/* DPMS bits */
unsigned char dpms_acpi:1;
unsigned char skip_boot_crt_detect:1;
unsigned char dpms_aim:1;
unsigned char rsvd1:5; /* finish byte */
/* boot device bits */
unsigned char boot_display[2];
unsigned char child_dev_size;
/* device info */
unsigned char tv_or_lvds_info[33];
unsigned char dev1[33];
unsigned char dev2[33];
unsigned char dev3[33];
unsigned char dev4[33];
/* may be another device block here on some platforms */
};
#define LVDS_CAP_EDID (1 << 6)
#define LVDS_CAP_DITHER (1 << 5)
#define LVDS_CAP_PFIT_AUTO_RATIO (1 << 4)
#define LVDS_CAP_PFIT_GRAPHICS_MODE (1 << 3)
#define LVDS_CAP_PFIT_TEXT_MODE (1 << 2)
#define LVDS_CAP_PFIT_GRAPHICS (1 << 1)
#define LVDS_CAP_PFIT_TEXT (1 << 0)
struct lvds_bdb_1 {
uint8_t id; /**< 40 */
uint16_t size;
uint8_t panel_type;
uint8_t reserved0;
uint16_t caps;
} __attribute__((packed));
struct lvds_bdb_2_fp_params {
uint16_t x_res;
uint16_t y_res;
uint32_t lvds_reg;
uint32_t lvds_reg_val;
uint32_t pp_on_reg;
uint32_t pp_on_reg_val;
uint32_t pp_off_reg;
uint32_t pp_off_reg_val;
uint32_t pp_cycle_reg;
uint32_t pp_cycle_reg_val;
uint32_t pfit_reg;
uint32_t pfit_reg_val;
uint16_t terminator;
} __attribute__((packed));
struct lvds_bdb_2_fp_edid_dtd {
uint16_t dclk; /**< In 10khz */
uint8_t hactive;
uint8_t hblank;
uint8_t high_h; /**< 7:4 = hactive 11:8, 3:0 = hblank 11:8 */
uint8_t vactive;
uint8_t vblank;
uint8_t high_v; /**< 7:4 = vactive 11:8, 3:0 = vblank 11:8 */
uint8_t hsync_off;
uint8_t hsync_pulse_width;
uint8_t vsync_off;
uint8_t high_hsync_off; /**< 7:6 = hsync off 9:8 */
uint8_t h_image;
uint8_t v_image;
uint8_t max_hv;
uint8_t h_border;
uint8_t v_border;
uint8_t flags;
#define FP_EDID_FLAG_VSYNC_POSITIVE (1 << 2)
#define FP_EDID_FLAG_HSYNC_POSITIVE (1 << 1)
} __attribute__((packed));
struct lvds_bdb_2_entry {
uint16_t fp_params_offset; /**< From beginning of BDB */
uint8_t fp_params_size;
uint16_t fp_edid_dtd_offset;
uint8_t fp_edid_dtd_size;
uint16_t fp_edid_pid_offset;
uint8_t fp_edid_pid_size;
} __attribute__((packed));
struct lvds_bdb_2 {
uint8_t id; /**< 41 */
uint16_t size;
uint8_t table_size; /* not sure on this one */
struct lvds_bdb_2_entry panels[16];
} __attribute__((packed));
struct aimdb_header {
char signature[16];
char oem_device[20];
uint16_t aimdb_version;
uint16_t aimdb_header_size;
uint16_t aimdb_size;
} __attribute__((packed));
struct aimdb_block {
uint8_t aimdb_id;
uint16_t aimdb_size;
} __attribute__((packed));
struct vch_panel_data {
uint16_t fp_timing_offset;
uint8_t fp_timing_size;
uint16_t dvo_timing_offset;
uint8_t dvo_timing_size;
uint16_t text_fitting_offset;
uint8_t text_fitting_size;
uint16_t graphics_fitting_offset;
uint8_t graphics_fitting_size;
} __attribute__((packed));
struct vch_bdb_22 {
struct aimdb_block aimdb_block;
struct vch_panel_data panels[16];
} __attribute__((packed));
unsigned char *
i830_bios_get (ScrnInfoPtr pScrn);
void i830_bios_get_ssc(ScrnInfoPtr pScrn);
void i830_bios_get_tv(ScrnInfoPtr pScrn);
DisplayModePtr i830_bios_get_panel_mode(ScrnInfoPtr pScrn, Bool *wants_dither);
unsigned char *
i830_bios_get_aim_data_block (ScrnInfoPtr pScrn, int aim, int data_block);
#endif /* _I830_BIOS_H_ */
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