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Code Issues Releases Wiki Activity

Pull bios_reader program from Xorg driver

Browse Source 
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Zhenyu Wang 2010-01-12 14:04:43 +08:00
parent 087d74b335
commit 97ffee66ae
4 changed files with 1351 additions and 1 deletions
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1
.gitignore vendored
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@ -56,3 +56,4 @@ tools/intel_reg_write
tools/intel_stepping tools/intel_stepping
tools/intel_audio_dump tools/intel_audio_dump
tools/intel_reg_read tools/intel_reg_read
tools/intel_bios_reader

7
tools/Makefile.am
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@ -7,7 +7,8 @@ bin_PROGRAMS = \
intel_stepping \ intel_stepping \
intel_reg_dumper \ intel_reg_dumper \
intel_reg_write \ intel_reg_write \
intel_reg_read intel_reg_read \
intel_bios_reader
intel_gpu_dump_SOURCES = \ intel_gpu_dump_SOURCES = \
intel_gpu_dump.c \ intel_gpu_dump.c \
@ -19,6 +20,10 @@ intel_decode_SOURCES = \
intel_decode.c \ intel_decode.c \
intel_decode.h intel_decode.h
intel_bios_reader_SOURCES = \
intel_bios_reader.c \
intel_bios.h
LDADD = ../lib/libintel_tools.la $(DRM_LIBS) $(PCIACCESS_LIBS) LDADD = ../lib/libintel_tools.la $(DRM_LIBS) $(PCIACCESS_LIBS)
AM_CFLAGS = $(DRM_CFLAGS) $(PCIACCESS_CFLAGS) $(WARN_CFLAGS) \ AM_CFLAGS = $(DRM_CFLAGS) $(PCIACCESS_CFLAGS) $(WARN_CFLAGS) \

664
tools/intel_bios.h Normal file
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@ -0,0 +1,664 @@
/*
* 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 _INTEL_BIOS_H_
#define _INTEL_BIOS_H_
#include <stdint.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_EDP 27
#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));
#define GPIO_PIN_NONE 0x00 /* "N/A" */
#define GPIO_PIN_I2C 0x01 /* "I2C GPIO pins" */
#define GPIO_PIN_CRT_DDC 0x02 /* "Analog CRT DDC GPIO pins" */
/* 915+ */
#define GPIO_PIN_LVDS 0x03 /* "Integrated LVDS DDC GPIO pins" */
#define GPIO_PIN_SDVO_I2C 0x05 /* "sDVO I2C GPIO pins" */
#define GPIO_PIN_SDVO_DDC1 0x1D /* "SDVO DDC1 GPIO pins" */
#define GPIO_PIN_SDVO_DDC2 0x2D /* "SDVO DDC2 GPIO pins" */
/* pre-915 */
#define GPIO_PIN_DVI_LVDS 0x03 /* "DVI/LVDS DDC GPIO pins" */
#define GPIO_PIN_ADD_I2C 0x05 /* "ADDCARD I2C GPIO pins" */
#define GPIO_PIN_ADD_DDC 0x04 /* "ADDCARD DDC GPIO pins" */
#define GPIO_PIN_ADD_DDC_I2C 0x06 /* "ADDCARD DDC/I2C GPIO pins" */
/* Pre 915 */
#define DEVICE_TYPE_NONE 0x00
#define DEVICE_TYPE_CRT 0x01
#define DEVICE_TYPE_TV 0x09
#define DEVICE_TYPE_EFP 0x12
#define DEVICE_TYPE_LFP 0x22
/* On 915+ */
#define DEVICE_TYPE_CRT_DPMS 0x6001
#define DEVICE_TYPE_CRT_DPMS_HOTPLUG 0x4001
#define DEVICE_TYPE_TV_COMPOSITE 0x0209
#define DEVICE_TYPE_TV_MACROVISION 0x0289
#define DEVICE_TYPE_TV_RF_COMPOSITE 0x020c
#define DEVICE_TYPE_TV_SVIDEO_COMPOSITE 0x0609
#define DEVICE_TYPE_TV_SCART 0x0209
#define DEVICE_TYPE_TV_CODEC_HOTPLUG_PWR 0x6009
#define DEVICE_TYPE_EFP_HOTPLUG_PWR 0x6012
#define DEVICE_TYPE_EFP_DVI_HOTPLUG_PWR 0x6052
#define DEVICE_TYPE_EFP_DVI_I 0x6053
#define DEVICE_TYPE_EFP_DVI_D_DUAL 0x6152
#define DEVICE_TYPE_EFP_DVI_D_HDCP 0x60d2
#define DEVICE_TYPE_OPENLDI_HOTPLUG_PWR 0x6062
#define DEVICE_TYPE_OPENLDI_DUALPIX 0x6162
#define DEVICE_TYPE_LFP_PANELLINK 0x5012
#define DEVICE_TYPE_LFP_CMOS_PWR 0x5042
#define DEVICE_TYPE_LFP_LVDS_PWR 0x5062
#define DEVICE_TYPE_LFP_LVDS_DUAL 0x5162
#define DEVICE_TYPE_LFP_LVDS_DUAL_HDCP 0x51e2
#define DEVICE_CFG_NONE 0x00
#define DEVICE_CFG_12BIT_DVOB 0x01
#define DEVICE_CFG_12BIT_DVOC 0x02
#define DEVICE_CFG_24BIT_DVOBC 0x09
#define DEVICE_CFG_24BIT_DVOCB 0x0a
#define DEVICE_CFG_DUAL_DVOB 0x11
#define DEVICE_CFG_DUAL_DVOC 0x12
#define DEVICE_CFG_DUAL_DVOBC 0x13
#define DEVICE_CFG_DUAL_LINK_DVOBC 0x19
#define DEVICE_CFG_DUAL_LINK_DVOCB 0x1a
#define DEVICE_WIRE_NONE 0x00
#define DEVICE_WIRE_DVOB 0x01
#define DEVICE_WIRE_DVOC 0x02
#define DEVICE_WIRE_DVOBC 0x03
#define DEVICE_WIRE_DVOBB 0x05
#define DEVICE_WIRE_DVOCC 0x06
#define DEVICE_WIRE_DVOB_MASTER 0x0d
#define DEVICE_WIRE_DVOC_MASTER 0x0e
#define DEVICE_PORT_DVOA 0x00 /* none on 845+ */
#define DEVICE_PORT_DVOB 0x01
#define DEVICE_PORT_DVOC 0x02
struct child_device_config {
uint16_t handle;
uint16_t device_type; /* See DEVICE_TYPE_* above */
uint8_t device_id[10];
uint16_t addin_offset;
uint8_t dvo_port; /* See DEVICE_PORT_* above */
uint8_t i2c_pin;
uint8_t slave_addr;
uint8_t ddc_pin;
uint16_t edid_ptr;
uint8_t dvo_cfg; /* See DEVICE_CFG_* above */
uint8_t dvo2_port;
uint8_t i2c2_pin;
uint8_t slave2_addr;
uint8_t ddc2_pin;
uint8_t capabilities;
uint8_t dvo_wiring; /* See DEVICE_WIRE_* above */
uint8_t dvo2_wiring;
uint16_t extended_type;
uint8_t dvo_function;
} __attribute__ ((packed));
struct bdb_general_definitions {
unsigned char crt_ddc_gmbus_pin; /* see GPIO_PIN_* above */
/* 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:
* If TV is present, it'll be at devices[0]
* LVDS will be next, either devices[0] or [1], if present
* Max total will be 6, but could be as few as 4 if both
* TV and LVDS are missing, so be careful when interpreting
* [4] and [5].
*/
struct child_device_config devices[0];
/* may be another device block here on some platforms */
} __attribute__ ((packed));
#define DEVICE_CHILD_SIZE 7
struct bdb_child_devices {
uint8_t child_structure_size;
struct child_device_config children[DEVICE_CHILD_SIZE];
} __attribute__ ((packed));
struct bdb_lvds_options {
uint8_t panel_type;
uint8_t rsvd1;
/* LVDS capabilities, stored in a dword */
uint8_t pfit_mode:2;
uint8_t pfit_text_mode_enhanced:1;
uint8_t pfit_gfx_mode_enhanced:1;
uint8_t pfit_ratio_auto:1;
uint8_t pixel_dither:1;
uint8_t lvds_edid:1;
uint8_t rsvd2:1;
uint8_t rsvd4;
} __attribute__ ((packed));
/* 915+ only */
struct bdb_tv_features {
/* need to verify bit ordering */
uint16_t under_over_scan_via_yprpb:2;
uint16_t rsvd1:10;
uint16_t under_over_scan_via_dvi:2;
uint16_t add_overscan_mode:1;
uint16_t rsvd2:1;
} __attribute__ ((packed));
struct lvds_fp_timing {
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_dvo_timing {
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;
} __attribute__ ((packed));
struct lvds_pnp_id {
uint16_t mfg_name;
uint16_t product_code;
uint32_t serial;
uint8_t mfg_week;
uint8_t mfg_year;
} __attribute__ ((packed));;
/* LFP pointer table contains entries to the struct below */
struct bdb_lvds_lfp_data_ptr {
uint16_t fp_timing_offset; /* offsets are from start of bdb */
uint8_t fp_table_size;
uint16_t dvo_timing_offset;
uint8_t dvo_table_size;
uint16_t panel_pnp_id_offset;
uint8_t pnp_table_size;
} __attribute__ ((packed));
struct bdb_lvds_lfp_data_ptrs {
uint8_t lvds_entries;
struct bdb_lvds_lfp_data_ptr ptr[16];
} __attribute__ ((packed));
struct bdb_lvds_lfp_data_entry {
struct lvds_fp_timing fp_timing;
struct lvds_dvo_timing dvo_timing;
struct lvds_pnp_id pnp_id;
} __attribute__ ((packed));
struct bdb_lvds_lfp_data {
struct bdb_lvds_lfp_data_entry data[16];
} __attribute__ ((packed));
#define BACKLIGHT_TYPE_NONE 0
#define BACKLIGHT_TYPE_I2C 1
#define BACKLIGHT_TYPE_PWM 2
#define BACKLIGHT_GMBUS_100KHZ 0
#define BACKLIGHT_GMBUS_50KHZ 1
#define BACKLIGHT_GMBUS_400KHZ 2
#define BACKLIGHT_GMBUS_1MHZ 3
struct backlight_info {
uint8_t inverter_type:2; /* see BACKLIGHT_TYPE_* above */
uint8_t inverter_polarity:1; /* 1 means 0 is max, 255 is min */
uint8_t gpio_pins:3; /* see GPIO_PIN_* above */
uint8_t gmbus_speed:2;
uint16_t pwm_frequency; /* in Hz */
uint8_t min_brightness;
/* Next two are only for 915+ systems */
uint8_t i2c_addr;
uint8_t i2c_cmd;
} __attribute((packed));
struct bdb_backlight_control {
uint8_t row_size;
struct backlight_info lfps[16];
} __attribute__ ((packed));
struct bdb_bia {
uint8_t bia_enable:1;
uint8_t bia_level:3;
uint8_t rsvd1:3;
uint8_t als_enable:1;
uint8_t als_response_data[20];
} __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));
#define BLC_INVERTER_TYPE_NONE 0
#define BLC_INVERTER_TYPE_I2C 1
#define BLC_INVERTER_TYPE_PWM 2
#define BLC_GPIO_NONE 0
#define BLC_GPIO_I2C 1
#define BLC_GPIO_CRT_DDC 2
#define BLC_GPIO_DVI_DDC 3
#define BLC_GPIO_SDVO_I2C 5
struct blc_struct {
uint8_t inverter_type:2;
uint8_t inverter_polarity:1; /* 1 means inverted (0 = max brightness) */
uint8_t gpio_pins:3;
uint8_t gmbus_speed:2;
uint16_t pwm_freq; /* in Hz */
uint8_t min_brightness; /* (0-255) */
uint8_t i2c_slave_addr;
uint8_t i2c_cmd;
} __attribute__ ((packed));
struct bdb_lvds_backlight {
uint8_t blcstruct_size;
struct blc_struct panels[16];
} __attribute__ ((packed));
struct bdb_lvds_power {
uint8_t dpst_enabled:1;
uint8_t pwr_prefs:3;
uint8_t rsvd1:3;
uint8_t als_enabled:1;
uint16_t als_backlight1;
uint16_t als_backlight2;
uint16_t als_backlight3;
uint16_t als_backlight4;
uint16_t als_backlight5;
} __attribute__ ((packed));
#define BDB_DRIVER_NO_LVDS 0
#define BDB_DRIVER_INT_LVDS 1
#define BDB_DRIVER_SDVO_LVDS 2
#define BDB_DRIVER_EDP 3
struct bdb_driver_feature {
uint8_t boot_dev_algorithm:1;
uint8_t block_display_switch:1;
uint8_t allow_display_switch:1;
uint8_t hotplug_dvo:1;
uint8_t dual_view_zoom:1;
uint8_t int15h_hook:1;
uint8_t sprite_in_clone:1;
uint8_t primary_lfp_id:1;
uint16_t boot_mode_x;
uint16_t boot_mode_y;
uint8_t boot_mode_bpp;
uint8_t boot_mode_refresh;
uint16_t enable_lfp_primary:1;
uint16_t selective_mode_pruning:1;
uint16_t dual_frequency:1;
uint16_t render_clock_freq:1; /* 0: high freq; 1: low freq */
uint16_t nt_clone_support:1;
uint16_t power_scheme_ui:1; /* 0: CUI; 1: 3rd party */
uint16_t sprite_display_assign:1; /* 0: secondary; 1: primary */
uint16_t cui_aspect_scaling:1;
uint16_t preserve_aspect_ratio:1;
uint16_t sdvo_device_power_down:1;
uint16_t crt_hotplug:1;
uint16_t lvds_config:2;
uint16_t reserved:3;
uint8_t static_display:1;
uint8_t reserved2:7;
uint16_t legacy_crt_max_x;
uint16_t legacy_crt_max_y;
uint8_t legacy_crt_max_refresh;
} __attribute__ ((packed));
struct bdb_sdvo_lvds_options {
uint8_t panel_backlight;
uint8_t h40_set_panel_type;
uint8_t panel_type;
uint8_t ssc_clk_freq;
uint16_t als_low_trip;
uint16_t als_high_trip;
uint8_t sclalarcoeff_tab_row_num;
uint8_t sclalarcoeff_tab_row_size;
uint8_t coefficient[8];
uint8_t panel_misc_bits_1;
uint8_t panel_misc_bits_2;
uint8_t panel_misc_bits_3;
uint8_t panel_misc_bits_4;
} __attribute__ ((packed));
#define EDP_18BPP 0
#define EDP_24BPP 1
#define EDP_30BPP 2
#define EDP_RATE_1_62 0
#define EDP_RATE_2_7 1
#define EDP_LANE_1 0
#define EDP_LANE_2 1
#define EDP_LANE_4 3
#define EDP_PREEMPHASIS_NONE 0
#define EDP_PREEMPHASIS_3_5dB 1
#define EDP_PREEMPHASIS_6dB 2
#define EDP_PREEMPHASIS_9_5dB 3
#define EDP_VSWING_0_4V 0
#define EDP_VSWING_0_6V 1
#define EDP_VSWING_0_8V 2
#define EDP_VSWING_1_2V 3
struct edp_power_seq {
uint16_t t3;
uint16_t t7;
uint16_t t9;
uint16_t t10;
uint16_t t12;
} __attribute__ ((packed));
struct edp_link_params {
uint8_t rate:4;
uint8_t lanes:4;
uint8_t preemphasis:4;
uint8_t vswing:4;
} __attribute__ ((packed));
struct bdb_edp {
struct edp_power_seq power_seqs[16];
uint32_t color_depth;
uint32_t sdrrs_msa_timing_delay;
struct edp_link_params link_params[16];
} __attribute__ ((packed));
/*
* Driver<->VBIOS interaction occurs through scratch bits in
* GR18 & SWF*.
*
* The VBIOS/firmware will signal to the gfx driver through the ASLE interrupt
* (visible in the interupt regs at bit 0) when it wants something done.
*
* Pre-965:
* The gfx driver can make calls to the VBIOS/firmware through an SMI request,
* generated by writing to offset 0xe0 of the device's config space (see the
* publically available 915 PRM for details).
*
* 965 and above:
* IGD OpRegion requests to the VBIOS/firmware are made using SWSCI, which can
* be triggered by writing to offset 0xe4 (see the publically available
* 965 graphics PRM for details).
*/
/* GR18 bits are set on display switch and hotkey events */
#define GR18_DRIVER_SWITCH_EN (1<<7) /* 0: VBIOS control, 1: driver control */
#define GR18_HOTKEY_MASK 0x78 /* See also SWF4 15:0 */
#define GR18_HK_NONE (0x0<<3)
#define GR18_HK_LFP_STRETCH (0x1<<3)
#define GR18_HK_TOGGLE_DISP (0x2<<3)
#define GR18_HK_DISP_SWITCH (0x4<<3) /* see SWF14 15:0 for what to enable */
#define GR18_HK_POPUP_DISABLED (0x6<<3)
#define GR18_HK_POPUP_ENABLED (0x7<<3)
#define GR18_HK_PFIT (0x8<<3)
#define GR18_HK_APM_CHANGE (0xa<<3)
#define GR18_HK_MULTIPLE (0xc<<3)
#define GR18_USER_INT_EN (1<<2)
#define GR18_A0000_FLUSH_EN (1<<1)
#define GR18_SMM_EN (1<<0)
/* Set by driver, cleared by VBIOS */
#define SWF00_YRES_SHIFT 16
#define SWF00_XRES_SHIFT 0
#define SWF00_RES_MASK 0xffff
/* Set by VBIOS at boot time and driver at runtime */
#define SWF01_TV2_FORMAT_SHIFT 8
#define SWF01_TV1_FORMAT_SHIFT 0
#define SWF01_TV_FORMAT_MASK 0xffff
#define SWF10_VBIOS_BLC_I2C_EN (1<<29)
#define SWF10_GTT_OVERRIDE_EN (1<<28)
#define SWF10_LFP_DPMS_OVR (1<<27) /* override DPMS on display switch */
#define SWF10_ACTIVE_TOGGLE_LIST_MASK (7<<24)
#define SWF10_OLD_TOGGLE 0x0
#define SWF10_TOGGLE_LIST_1 0x1
#define SWF10_TOGGLE_LIST_2 0x2
#define SWF10_TOGGLE_LIST_3 0x3
#define SWF10_TOGGLE_LIST_4 0x4
#define SWF10_PANNING_EN (1<<23)
#define SWF10_DRIVER_LOADED (1<<22)
#define SWF10_EXTENDED_DESKTOP (1<<21)
#define SWF10_EXCLUSIVE_MODE (1<<20)
#define SWF10_OVERLAY_EN (1<<19)
#define SWF10_PLANEB_HOLDOFF (1<<18)
#define SWF10_PLANEA_HOLDOFF (1<<17)
#define SWF10_VGA_HOLDOFF (1<<16)
#define SWF10_ACTIVE_DISP_MASK 0xffff
#define SWF10_PIPEB_LFP2 (1<<15)
#define SWF10_PIPEB_EFP2 (1<<14)
#define SWF10_PIPEB_TV2 (1<<13)
#define SWF10_PIPEB_CRT2 (1<<12)
#define SWF10_PIPEB_LFP (1<<11)
#define SWF10_PIPEB_EFP (1<<10)
#define SWF10_PIPEB_TV (1<<9)
#define SWF10_PIPEB_CRT (1<<8)
#define SWF10_PIPEA_LFP2 (1<<7)
#define SWF10_PIPEA_EFP2 (1<<6)
#define SWF10_PIPEA_TV2 (1<<5)
#define SWF10_PIPEA_CRT2 (1<<4)
#define SWF10_PIPEA_LFP (1<<3)
#define SWF10_PIPEA_EFP (1<<2)
#define SWF10_PIPEA_TV (1<<1)
#define SWF10_PIPEA_CRT (1<<0)
#define SWF11_MEMORY_SIZE_SHIFT 16
#define SWF11_SV_TEST_EN (1<<15)
#define SWF11_IS_AGP (1<<14)
#define SWF11_DISPLAY_HOLDOFF (1<<13)
#define SWF11_DPMS_REDUCED (1<<12)
#define SWF11_IS_VBE_MODE (1<<11)
#define SWF11_PIPEB_ACCESS (1<<10) /* 0 here means pipe a */
#define SWF11_DPMS_MASK 0x07
#define SWF11_DPMS_OFF (1<<2)
#define SWF11_DPMS_SUSPEND (1<<1)
#define SWF11_DPMS_STANDBY (1<<0)
#define SWF11_DPMS_ON 0
#define SWF14_GFX_PFIT_EN (1<<31)
#define SWF14_TEXT_PFIT_EN (1<<30)
#define SWF14_LID_SWITCH_EN (1<<29)
#define SWF14_POPUP_EN (1<<28)
#define SWF14_DISPLAY_HOLDOFF (1<<27)
#define SWF14_DISP_DETECT_EN (1<<26)
#define SWF14_DOCKING_STATUS_DOCKED (1<<25) /* 0 here means undocked */
#define SWF14_DRIVER_STATUS (1<<24)
#define SWF14_OS_TYPE_WIN9X (1<<23)
#define SWF14_OS_TYPE_WINNT (1<<22)
/* 21:19 rsvd */
#define SWF14_PM_TYPE_MASK 0x00070000
#define SWF14_PM_ACPI_VIDEO (0x4 << 16)
#define SWF14_PM_ACPI (0x3 << 16)
#define SWF14_PM_APM_12 (0x2 << 16)
#define SWF14_PM_APM_11 (0x1 << 16)
#define SWF14_HK_REQUEST_MASK 0x0000ffff /* see GR18 6:3 for event type */
/* if GR18 indicates a display switch */
#define SWF14_DS_PIPEB_LFP2_EN (1<<15)
#define SWF14_DS_PIPEB_EFP2_EN (1<<14)
#define SWF14_DS_PIPEB_TV2_EN (1<<13)
#define SWF14_DS_PIPEB_CRT2_EN (1<<12)
#define SWF14_DS_PIPEB_LFP_EN (1<<11)
#define SWF14_DS_PIPEB_EFP_EN (1<<10)
#define SWF14_DS_PIPEB_TV_EN (1<<9)
#define SWF14_DS_PIPEB_CRT_EN (1<<8)
#define SWF14_DS_PIPEA_LFP2_EN (1<<7)
#define SWF14_DS_PIPEA_EFP2_EN (1<<6)
#define SWF14_DS_PIPEA_TV2_EN (1<<5)
#define SWF14_DS_PIPEA_CRT2_EN (1<<4)
#define SWF14_DS_PIPEA_LFP_EN (1<<3)
#define SWF14_DS_PIPEA_EFP_EN (1<<2)
#define SWF14_DS_PIPEA_TV_EN (1<<1)
#define SWF14_DS_PIPEA_CRT_EN (1<<0)
/* if GR18 indicates a panel fitting request */
#define SWF14_PFIT_EN (1<<0) /* 0 means disable */
/* if GR18 indicates an APM change request */
#define SWF14_APM_HIBERNATE 0x4
#define SWF14_APM_SUSPEND 0x3
#define SWF14_APM_STANDBY 0x1
#define SWF14_APM_RESTORE 0x0
#endif /* _INTEL_BIOS_H_ */

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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>
*
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "intel_bios.h"
/* no bother to include "edid.h" */
#define _H_ACTIVE(x) (x[2] + ((x[4] & 0xF0) << 4))
#define _H_SYNC_OFF(x) (x[8] + ((x[11] & 0xC0) << 2))
#define _H_SYNC_WIDTH(x) (x[9] + ((x[11] & 0x30) << 4))
#define _H_BLANK(x) (x[3] + ((x[4] & 0x0F) << 8))
#define _V_ACTIVE(x) (x[5] + ((x[7] & 0xF0) << 4))
#define _V_SYNC_OFF(x) ((x[10] >> 4) + ((x[11] & 0x0C) << 2))
#define _V_SYNC_WIDTH(x) ((x[10] & 0x0F) + ((x[11] & 0x03) << 4))
#define _V_BLANK(x) (x[6] + ((x[7] & 0x0F) << 8))
#define _PIXEL_CLOCK(x) (x[0] + (x[1] << 8)) * 10000
/* Make a fake pI830 so we can easily pull i830_bios.c code in here. */
struct _fake_i830 {
uint8_t *VBIOS;
};
struct _fake_i830 I830;
struct _fake_i830 *pI830 = &I830;
#define INTEL_BIOS_8(_addr) (pI830->VBIOS[_addr])
#define INTEL_BIOS_16(_addr) (pI830->VBIOS[_addr] | \
(pI830->VBIOS[_addr + 1] << 8))
#define INTEL_BIOS_32(_addr) (pI830->VBIOS[_addr] | \
(pI830->VBIOS[_addr + 1] << 8) | \
(pI830->VBIOS[_addr + 2] << 16) | \
(pI830->VBIOS[_addr + 3] << 24))
#define YESNO(val) ((val) ? "yes" : "no")
struct bdb_block {
uint8_t id;
uint16_t size;
void *data;
};
struct bdb_header *bdb;
static int tv_present;
static int lvds_present;
static int panel_type;
static struct bdb_block *find_section(int section_id)
{
struct bdb_block *block;
unsigned char *base = (unsigned char *)bdb;
int index = 0;
uint16_t total, current_size;
unsigned char current_id;
/* skip to first section */
index += bdb->header_size;
total = bdb->bdb_size;
block = malloc(sizeof(*block));
if (!block) {
fprintf(stderr, "out of memory\n");
exit(-1);
}
/* walk the sections looking for section_id */
while (index < total) {
current_id = *(base + index);
index++;
current_size = *((uint16_t *) (base + index));
index += 2;
if (current_id == section_id) {
block->id = current_id;
block->size = current_size;
block->data = base + index;
return block;
}
index += current_size;
}
free(block);
return NULL;
}
static void dump_general_features(void)
{
struct bdb_general_features *features;
struct bdb_block *block;
block = find_section(BDB_GENERAL_FEATURES);
if (!block)
return;
features = block->data;
printf("General features block:\n");
printf("\tPanel fitting: ");
switch (features->panel_fitting) {
case 0:
printf("disabled\n");
break;
case 1:
printf("text only\n");
break;
case 2:
printf("graphics only\n");
break;
case 3:
printf("text & graphics\n");
break;
}
printf("\tFlexaim: %s\n", YESNO(features->flexaim));
printf("\tMessage: %s\n", YESNO(features->msg_enable));
printf("\tClear screen: %d\n", features->clear_screen);
printf("\tDVO color flip required: %s\n", YESNO(features->color_flip));
printf("\tExternal VBT: %s\n", YESNO(features->download_ext_vbt));
printf("\tEnable SSC: %s\n", YESNO(features->enable_ssc));
if (features->enable_ssc)
printf("\tSSC frequency: %s\n", features->ssc_freq ?
"100 MHz (66 MHz on 855)" : "96 MHz (48 MHz on 855)");
printf("\tLFP on override: %s\n",
YESNO(features->enable_lfp_on_override));
printf("\tDisable SSC on clone: %s\n",
YESNO(features->disable_ssc_ddt));
printf("\tDisable smooth vision: %s\n",
YESNO(features->disable_smooth_vision));
printf("\tSingle DVI for CRT/DVI: %s\n", YESNO(features->single_dvi));
printf("\tLegacy monitor detect: %s\n",
YESNO(features->legacy_monitor_detect));
printf("\tIntegrated CRT: %s\n", YESNO(features->int_crt_support));
printf("\tIntegrated TV: %s\n", YESNO(features->int_tv_support));
tv_present = 1; /* should be based on whether TV DAC exists */
lvds_present = 1; /* should be based on IS_MOBILE() */
free(block);
}
static void dump_backlight_info(void)
{
struct bdb_block *block;
struct bdb_lvds_backlight *backlight;
struct blc_struct *blc;
block = find_section(BDB_LVDS_BACKLIGHT);
if (!block)
return;
backlight = block->data;
printf("Backlight info block (len %d):\n", block->size);
if (sizeof(struct blc_struct) != backlight->blcstruct_size) {
printf("\tBacklight struct sizes don't match (expected %u, got %u), skipping\n",
sizeof(struct blc_struct), backlight->blcstruct_size);
return;
}
blc = &backlight->panels[panel_type];
printf("\tInverter type: %d\n", blc->inverter_type);
printf("\t polarity: %d\n", blc->inverter_polarity);
printf("\t GPIO pins: %d\n", blc->gpio_pins);
printf("\t GMBUS speed: %d\n", blc->gmbus_speed);
printf("\t PWM freq: %d\n", blc->pwm_freq);
printf("\tMinimum brightness: %d\n", blc->min_brightness);
printf("\tI2C slave addr: 0x%02x\n", blc->i2c_slave_addr);
printf("\tI2C command: 0x%02x\n", blc->i2c_cmd);
}
static void dump_general_definitions(void)
{
struct bdb_block *block;
struct bdb_general_definitions *defs;
struct child_device_config *child;
int i;
char child_id[11];
int child_device_num;
block = find_section(BDB_GENERAL_DEFINITIONS);
if (!block)
return;
defs = block->data;
printf("General definitions block:\n");
printf("\tCRT DDC GMBUS addr: 0x%02x\n", defs->crt_ddc_gmbus_pin);
printf("\tUse ACPI DPMS CRT power states: %s\n",
YESNO(defs->dpms_acpi));
printf("\tSkip CRT detect at boot: %s\n",
YESNO(defs->skip_boot_crt_detect));
printf("\tUse DPMS on AIM devices: %s\n", YESNO(defs->dpms_aim));
printf("\tBoot display type: 0x%02x%02x\n", defs->boot_display[1],
defs->boot_display[0]);
printf("\tTV data block present: %s\n", YESNO(tv_present));
child_device_num = (block->size - sizeof(*defs)) / sizeof(*child);
for (i = 0; i < child_device_num; i++) {
child = &defs->devices[i];
if (!child->device_type) {
printf("\tChild device %d not present\n", i);
continue;
}
strncpy(child_id, (char *)child->device_id, 10);
child_id[10] = 0;
printf("\tChild %d device info:\n", i);
printf("\t\tSignature: %s\n", child_id);
printf("\t\tAIM offset: %d\n", child->addin_offset);
printf("\t\tDVO port: 0x%02x\n", child->dvo_port);
}
free(block);
}
#if 0
static void dump_child_devices(void)
{
struct bdb_block *block;
struct bdb_child_devices *child_devs;
struct child_device_config *child;
int i;
block = find_section(BDB_CHILD_DEVICE_TABLE);
if (!block) {
printf("No child device table found\n");
return;
}
child_devs = block->data;
printf("Child devices block:\n");
for (i = 0; i < DEVICE_CHILD_SIZE; i++) {
child = &child_devs->children[i];
/* Skip nonexistent children */
if (!child->device_type)
continue;
printf("\tChild device %d\n", i);
printf("\t\tType: 0x%04x\n", child->device_type);
printf("\t\tDVO port: 0x%02x\n", child->dvo_port);
printf("\t\tI2C pin: 0x%02x\n", child->i2c_pin);
printf("\t\tSlave addr: 0x%02x\n", child->slave_addr);
printf("\t\tDDC pin: 0x%02x\n", child->ddc_pin);
printf("\t\tDVO config: 0x%02x\n", child->dvo_cfg);
printf("\t\tDVO wiring: 0x%02x\n", child->dvo_wiring);
}
free(block);
}
#endif
static void dump_lvds_options(void)
{
struct bdb_block *block;
struct bdb_lvds_options *options;
block = find_section(BDB_LVDS_OPTIONS);
if (!block) {
printf("No LVDS options block\n");
return;
}
options = block->data;
printf("LVDS options block:\n");
panel_type = options->panel_type;
printf("\tPanel type: %d\n", panel_type);
printf("\tLVDS EDID available: %s\n", YESNO(options->lvds_edid));
printf("\tPixel dither: %s\n", YESNO(options->pixel_dither));
printf("\tPFIT auto ratio: %s\n", YESNO(options->pfit_ratio_auto));
printf("\tPFIT enhanced graphics mode: %s\n",
YESNO(options->pfit_gfx_mode_enhanced));
printf("\tPFIT enhanced text mode: %s\n",
YESNO(options->pfit_text_mode_enhanced));
printf("\tPFIT mode: %d\n", options->pfit_mode);
free(block);
}
static void dump_lvds_ptr_data(void)
{
struct bdb_block *block;
struct bdb_lvds_lfp_data *lvds_data;
struct bdb_lvds_lfp_data_ptrs *ptrs;
struct lvds_fp_timing *fp_timing;
struct bdb_lvds_lfp_data_entry *entry;
int lfp_data_size;
block = find_section(BDB_LVDS_LFP_DATA_PTRS);
if (!block) {
printf("No LFP data pointers block\n");
return;
}
ptrs = block->data;
block = find_section(BDB_LVDS_LFP_DATA);
if (!block) {
printf("No LVDS data block\n");
return;
}
lvds_data = block->data;
lfp_data_size =
ptrs->ptr[1].fp_timing_offset - ptrs->ptr[0].fp_timing_offset;
entry =
(struct bdb_lvds_lfp_data_entry *)((uint8_t *) lvds_data->data +
(lfp_data_size * panel_type));
fp_timing = &entry->fp_timing;
printf("LVDS timing pointer data:\n");
printf(" Number of entries: %d\n", ptrs->lvds_entries);
printf("\tpanel type %02i: %dx%d\n", panel_type, fp_timing->x_res,
fp_timing->y_res);
free(block);
}
static void dump_lvds_data(void)
{
struct bdb_block *block;
struct bdb_lvds_lfp_data *lvds_data;
struct bdb_lvds_lfp_data_ptrs *ptrs;
int num_entries;
int i;
int hdisplay, hsyncstart, hsyncend, htotal;
int vdisplay, vsyncstart, vsyncend, vtotal;
float clock;
int lfp_data_size, dvo_offset;
block = find_section(BDB_LVDS_LFP_DATA_PTRS);
if (!block) {
printf("No LVDS ptr block\n");
return;
}
ptrs = block->data;
lfp_data_size =
ptrs->ptr[1].fp_timing_offset - ptrs->ptr[0].fp_timing_offset;
dvo_offset =
ptrs->ptr[0].dvo_timing_offset - ptrs->ptr[0].fp_timing_offset;
free(block);
block = find_section(BDB_LVDS_LFP_DATA);
if (!block) {
printf("No LVDS data block\n");
return;
}
lvds_data = block->data;
num_entries = block->size / lfp_data_size;
printf("LVDS panel data block (preferred block marked with '*'):\n");
printf(" Number of entries: %d\n", num_entries);
for (i = 0; i < num_entries; i++) {
uint8_t *lfp_data_ptr =
(uint8_t *) lvds_data->data + lfp_data_size * i;
uint8_t *timing_data = lfp_data_ptr + dvo_offset;
struct bdb_lvds_lfp_data_entry *lfp_data =
(struct bdb_lvds_lfp_data_entry *)lfp_data_ptr;
char marker;
if (i == panel_type)
marker = '*';
else
marker = ' ';
hdisplay = _H_ACTIVE(timing_data);
hsyncstart = hdisplay + _H_SYNC_OFF(timing_data);
hsyncend = hsyncstart + _H_SYNC_WIDTH(timing_data);
htotal = hdisplay + _H_BLANK(timing_data);
vdisplay = _V_ACTIVE(timing_data);
vsyncstart = vdisplay + _V_SYNC_OFF(timing_data);
vsyncend = vsyncstart + _V_SYNC_WIDTH(timing_data);
vtotal = vdisplay + _V_BLANK(timing_data);
clock = _PIXEL_CLOCK(timing_data) / 1000;
printf("%c\tpanel type %02i: %dx%d clock %d\n", marker,
i, lfp_data->fp_timing.x_res, lfp_data->fp_timing.y_res,
_PIXEL_CLOCK(timing_data));
printf("\t\tinfo:\n");
printf("\t\t LVDS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.lvds_reg_val);
printf("\t\t PP_ON_DELAYS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_on_reg_val);
printf("\t\t PP_OFF_DELAYS: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_off_reg_val);
printf("\t\t PP_DIVISOR: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pp_cycle_reg_val);
printf("\t\t PFIT: 0x%08lx\n",
(unsigned long)lfp_data->fp_timing.pfit_reg_val);
printf("\t\ttimings: %d %d %d %d %d %d %d %d %.2f (%s)\n",
hdisplay, hsyncstart, hsyncend, htotal,
vdisplay, vsyncstart, vsyncend, vtotal, clock,
(hsyncend > htotal || vsyncend > vtotal) ?
"BAD!" : "good");
}
free(block);
}
static void dump_driver_feature(void)
{
struct bdb_block *block;
struct bdb_driver_feature *feature;
block = find_section(BDB_DRIVER_FEATURES);
if (!block) {
printf("No Driver feature data block\n");
return;
}
feature = block->data;
printf("Driver feature Data Block:\n");
printf("\tBoot Device Algorithm: %s\n", feature->boot_dev_algorithm ?
"driver default" : "os default");
printf("\tBlock display switching when DVD active: %s\n",
YESNO(feature->block_display_switch));
printf("\tAllow display switching when in Full Screen DOS: %s\n",
YESNO(feature->allow_display_switch));
printf("\tHot Plug DVO: %s\n", YESNO(feature->hotplug_dvo));
printf("\tDual View Zoom: %s\n", YESNO(feature->dual_view_zoom));
printf("\tDriver INT 15h hook: %s\n", YESNO(feature->int15h_hook));
printf("\tEnable Sprite in Clone Mode: %s\n",
YESNO(feature->sprite_in_clone));
printf("\tUse 00000110h ID for Primary LFP: %s\n",
YESNO(feature->primary_lfp_id));
printf("\tBoot Mode X: %u\n", feature->boot_mode_x);
printf("\tBoot Mode Y: %u\n", feature->boot_mode_y);
printf("\tBoot Mode Bpp: %u\n", feature->boot_mode_bpp);
printf("\tBoot Mode Refresh: %u\n", feature->boot_mode_refresh);
printf("\tEnable LFP as primary: %s\n",
YESNO(feature->enable_lfp_primary));
printf("\tSelective Mode Pruning: %s\n",
YESNO(feature->selective_mode_pruning));
printf("\tDual-Frequency Graphics Technology: %s\n",
YESNO(feature->dual_frequency));
printf("\tDefault Render Clock Frequency: %s\n",
feature->render_clock_freq ? "low" : "high");
printf("\tNT 4.0 Dual Display Clone Support: %s\n",
YESNO(feature->nt_clone_support));
printf("\tDefault Power Scheme user interface: %s\n",
feature->power_scheme_ui ? "3rd party" : "CUI");
printf
("\tSprite Display Assignment when Overlay is Active in Clone Mode: %s\n",
feature->sprite_display_assign ? "primary" : "secondary");
printf("\tDisplay Maintain Aspect Scaling via CUI: %s\n",
YESNO(feature->cui_aspect_scaling));
printf("\tPreserve Aspect Ratio: %s\n",
YESNO(feature->preserve_aspect_ratio));
printf("\tEnable SDVO device power down: %s\n",
YESNO(feature->sdvo_device_power_down));
printf("\tCRT hotplug: %s\n", YESNO(feature->crt_hotplug));
printf("\tLVDS config: ");
switch (feature->lvds_config) {
case BDB_DRIVER_NO_LVDS:
printf("No LVDS\n");
break;
case BDB_DRIVER_INT_LVDS:
printf("Integrated LVDS\n");
break;
case BDB_DRIVER_SDVO_LVDS:
printf("SDVO LVDS\n");
break;
case BDB_DRIVER_EDP:
printf("Embedded DisplayPort\n");
break;
}
printf("\tDefine Display statically: %s\n",
YESNO(feature->static_display));
printf("\tLegacy CRT max X: %d\n", feature->legacy_crt_max_x);
printf("\tLegacy CRT max Y: %d\n", feature->legacy_crt_max_y);
printf("\tLegacy CRT max refresh: %d\n",
feature->legacy_crt_max_refresh);
free(block);
}
static void dump_edp(void)
{
struct bdb_block *block;
struct bdb_edp *edp;
int bpp;
block = find_section(BDB_EDP);
if (!block) {
printf("No EDP data block\n");
return;
}
edp = block->data;
printf("eDP block: type %d\n", panel_type);
printf("\tPower Sequence: T3 %d T7 %d T9 %d T10 %d T12 %d\n",
edp->power_seqs[panel_type].t3,
edp->power_seqs[panel_type].t7,
edp->power_seqs[panel_type].t9,
edp->power_seqs[panel_type].t10,
edp->power_seqs[panel_type].t12);
bpp = (edp->color_depth >> (panel_type * 2)) & 3;
printf("\tPanel color depth: ");
switch (bpp) {
case EDP_18BPP:
printf("18bpp\n");
break;
case EDP_24BPP:
printf("24bpp\n");
break;
case EDP_30BPP:
printf("30bpp\n");
break;
}
printf("\teDP sDRRs MSA timing delay: %d\n", edp->sdrrs_msa_timing_delay);
printf("\tLink params:\n");
printf("\t\trate: ");
if (edp->link_params[panel_type].rate == EDP_RATE_1_62)
printf("1.62G\n");
else if (edp->link_params[panel_type].rate == EDP_RATE_2_7)
printf("2.7G\n");
printf("\t\tlanes: ");
switch (edp->link_params[panel_type].lanes) {
case EDP_LANE_1:
printf("x1 mode\n");
break;
case EDP_LANE_2:
printf("x2 mode\n");
break;
case EDP_LANE_4:
printf("x4 mode\n");
break;
}
printf("\t\tpre-emphasis: ");
switch (edp->link_params[panel_type].preemphasis) {
case EDP_PREEMPHASIS_NONE:
printf("none\n");
break;
case EDP_PREEMPHASIS_3_5dB:
printf("3.5dB\n");
break;
case EDP_PREEMPHASIS_6dB:
printf("6dB\n");
break;
case EDP_PREEMPHASIS_9_5dB:
printf("9.5dB\n");
break;
}
printf("\t\tvswing: ");
switch (edp->link_params[panel_type].vswing) {
case EDP_VSWING_0_4V:
printf("0.4V\n");
break;
case EDP_VSWING_0_6V:
printf("0.6V\n");
break;
case EDP_VSWING_0_8V:
printf("0.8V\n");
break;
case EDP_VSWING_1_2V:
printf("1.2V\n");
break;
}
free(block);
}
int main(int argc, char **argv)
{
int fd;
struct vbt_header *vbt = NULL;
int vbt_off, bdb_off, i;
char *filename = "bios";
struct stat finfo;
struct bdb_block *block;
char signature[17];
if (argc != 2) {
printf("usage: %s <rom file>\n", argv[0]);
return 1;
}
filename = argv[1];
fd = open(filename, O_RDONLY);
if (fd == -1) {
printf("Couldn't open \"%s\": %s\n", filename, strerror(errno));
return 1;
}
if (stat(filename, &finfo)) {
printf("failed to stat \"%s\": %s\n", filename,
strerror(errno));
return 1;
}
pI830->VBIOS = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (pI830->VBIOS == MAP_FAILED) {
printf("failed to map \"%s\": %s\n", filename, strerror(errno));
return 1;
}
/* Scour memory looking for the VBT signature */
for (i = 0; i + 4 < finfo.st_size; i++) {
if (!memcmp(pI830->VBIOS + i, "$VBT", 4)) {
vbt_off = i;
vbt = (struct vbt_header *)(pI830->VBIOS + i);
break;
}
}
if (!vbt) {
printf("VBT signature missing\n");
return 1;
}
printf("VBT vers: %d.%d\n", vbt->version / 100, vbt->version % 100);
bdb_off = vbt_off + vbt->bdb_offset;
bdb = (struct bdb_header *)(pI830->VBIOS + bdb_off);
strncpy(signature, (char *)bdb->signature, 16);
signature[16] = 0;
printf("BDB sig: %s\n", signature);
printf("BDB vers: %d.%d\n", bdb->version / 100, bdb->version % 100);
printf("Available sections: ");
for (i = 0; i < 256; i++) {
block = find_section(i);
if (!block)
continue;
printf("%d ", i);
free(block);
}
printf("\n");
dump_general_features();
dump_general_definitions();
// dump_child_devices();
dump_lvds_options();
dump_lvds_data();
dump_lvds_ptr_data();
dump_backlight_info();
dump_driver_feature();
dump_edp();
return 0;
}