/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2006 Intel Corporation
 *
 * Authors:
 *    Eric Anholt <eric@anholt.net>
 */

#ifndef _INTEL_BIOS_H_
#define _INTEL_BIOS_H_

struct drm_device;

struct vbt_header {
        u8 signature[20];               /**< Always starts with 'VBT$' */
        u16 version;                    /**< decimal */
        u16 header_size;                /**< in bytes */
        u16 vbt_size;                   /**< in bytes */
        u8 vbt_checksum;
        u8 reserved0;
        u32 bdb_offset;                 /**< from beginning of VBT */
        u32 aim_offset[4];              /**< from beginning of VBT */
} __packed;


struct bdb_header {
        u8 signature[16];               /**< Always 'BIOS_DATA_BLOCK' */
        u16 version;                    /**< decimal */
        u16 header_size;                /**< in bytes */
        u16 bdb_size;                   /**< in bytes */
};

/* strictly speaking, this is a "skip" block, but it has interesting info */
struct vbios_data {
        u8 type; /* 0 == desktop, 1 == mobile */
        u8 relstage;
        u8 chipset;
        u8 lvds_present:1;
        u8 tv_present:1;
        u8 rsvd2:6; /* finish byte */
        u8 rsvd3[4];
        u8 signon[155];
        u8 copyright[61];
        u16 code_segment;
        u8 dos_boot_mode;
        u8 bandwidth_percent;
        u8 rsvd4; /* popup memory size */
        u8 resize_pci_bios;
        u8 rsvd5; /* is crt already on ddc2 */
} __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 */
        u8 panel_fitting:2;
        u8 flexaim:1;
        u8 msg_enable:1;
        u8 clear_screen:3;
        u8 color_flip:1;

        /* bits 2 */
        u8 download_ext_vbt:1;
        u8 enable_ssc:1;
        u8 ssc_freq:1;
        u8 enable_lfp_on_override:1;
        u8 disable_ssc_ddt:1;
        u8 rsvd8:3; /* finish byte */

        /* bits 3 */
        u8 disable_smooth_vision:1;
        u8 single_dvi:1;
        u8 rsvd9:6; /* finish byte */

        /* bits 4 */
        u8 legacy_monitor_detect;

        /* bits 5 */
        u8 int_crt_support:1;
        u8 int_tv_support:1;
        u8 int_efp_support:1;
        u8 dp_ssc_enb:1;        /* PCH attached eDP supports SSC */
        u8 dp_ssc_freq:1;       /* SSC freq for PCH attached eDP */
        u8 rsvd11:3; /* finish byte */
} __packed;

/* 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 {
        u16 handle;
        u16 device_type;
        u8  device_id[10]; /* ascii string */
        u16 addin_offset;
        u8  dvo_port; /* See Device_PORT_* above */
        u8  i2c_pin;
        u8  target_addr;
        u8  ddc_pin;
        u16 edid_ptr;
        u8  dvo_cfg; /* See DEVICE_CFG_* above */
        u8  dvo2_port;
        u8  i2c2_pin;
        u8  target2_addr;
        u8  ddc2_pin;
        u8  capabilities;
        u8  dvo_wiring;/* See DEVICE_WIRE_* above */
        u8  dvo2_wiring;
        u16 extended_type;
        u8  dvo_function;
} __packed;


struct bdb_general_definitions {
        /* DDC GPIO */
        u8 crt_ddc_gmbus_pin;

        /* DPMS bits */
        u8 dpms_acpi:1;
        u8 skip_boot_crt_detect:1;
        u8 dpms_aim:1;
        u8 rsvd1:5; /* finish byte */

        /* boot device bits */
        u8 boot_display[2];
        u8 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.
         * On some platforms the number of device is 6. But could be as few as
         * 4 if both TV and LVDS are missing.
         * And the device num is related with the size of general definition
         * block. It is obtained by using the following formula:
         * number = (block_size - sizeof(bdb_general_definitions))/
         *           sizeof(child_device_config);
         */
        struct child_device_config devices[];
};

struct bdb_lvds_options {
        u8 panel_type;
        u8 rsvd1;
        /* LVDS capabilities, stored in a dword */
        u8 pfit_mode:2;
        u8 pfit_text_mode_enhanced:1;
        u8 pfit_gfx_mode_enhanced:1;
        u8 pfit_ratio_auto:1;
        u8 pixel_dither:1;
        u8 lvds_edid:1;
        u8 rsvd2:1;
        u8 rsvd4;
} __packed;

struct bdb_lvds_backlight {
        u8 type:2;
        u8 pol:1;
        u8 gpio:3;
        u8 gmbus:2;
        u16 freq;
        u8 minbrightness;
        u8 i2caddr;
        u8 brightnesscmd;
        /*FIXME: more...*/
} __packed;

/* LFP pointer table contains entries to the struct below */
struct bdb_lvds_lfp_data_ptr {
        u16 fp_timing_offset; /* offsets are from start of bdb */
        u8 fp_table_size;
        u16 dvo_timing_offset;
        u8 dvo_table_size;
        u16 panel_pnp_id_offset;
        u8 pnp_table_size;
} __packed;

struct bdb_lvds_lfp_data_ptrs {
        u8 lvds_entries; /* followed by one or more lvds_data_ptr structs */
        struct bdb_lvds_lfp_data_ptr ptr[16];
} __packed;

/* LFP data has 3 blocks per entry */
struct lvds_fp_timing {
        u16 x_res;
        u16 y_res;
        u32 lvds_reg;
        u32 lvds_reg_val;
        u32 pp_on_reg;
        u32 pp_on_reg_val;
        u32 pp_off_reg;
        u32 pp_off_reg_val;
        u32 pp_cycle_reg;
        u32 pp_cycle_reg_val;
        u32 pfit_reg;
        u32 pfit_reg_val;
        u16 terminator;
} __packed;

struct lvds_dvo_timing {
        u16 clock;              /**< In 10khz */
        u8 hactive_lo;
        u8 hblank_lo;
        u8 hblank_hi:4;
        u8 hactive_hi:4;
        u8 vactive_lo;
        u8 vblank_lo;
        u8 vblank_hi:4;
        u8 vactive_hi:4;
        u8 hsync_off_lo;
        u8 hsync_pulse_width;
        u8 vsync_pulse_width:4;
        u8 vsync_off:4;
        u8 rsvd0:6;
        u8 hsync_off_hi:2;
        u8 h_image;
        u8 v_image;
        u8 max_hv;
        u8 h_border;
        u8 v_border;
        u8 rsvd1:3;
        u8 digital:2;
        u8 vsync_positive:1;
        u8 hsync_positive:1;
        u8 rsvd2:1;
} __packed;

struct lvds_pnp_id {
        u16 mfg_name;
        u16 product_code;
        u32 serial;
        u8 mfg_week;
        u8 mfg_year;
} __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;
} __packed;

struct bdb_lvds_lfp_data {
        struct bdb_lvds_lfp_data_entry data[16];
} __packed;

struct aimdb_header {
        char signature[16];
        char oem_device[20];
        u16 aimdb_version;
        u16 aimdb_header_size;
        u16 aimdb_size;
} __packed;

struct aimdb_block {
        u8 aimdb_id;
        u16 aimdb_size;
} __packed;

struct vch_panel_data {
        u16 fp_timing_offset;
        u8 fp_timing_size;
        u16 dvo_timing_offset;
        u8 dvo_timing_size;
        u16 text_fitting_offset;
        u8 text_fitting_size;
        u16 graphics_fitting_offset;
        u8 graphics_fitting_size;
} __packed;

struct vch_bdb_22 {
        struct aimdb_block aimdb_block;
        struct vch_panel_data panels[16];
} __packed;

struct bdb_sdvo_lvds_options {
        u8 panel_backlight;
        u8 h40_set_panel_type;
        u8 panel_type;
        u8 ssc_clk_freq;
        u16 als_low_trip;
        u16 als_high_trip;
        u8 sclalarcoeff_tab_row_num;
        u8 sclalarcoeff_tab_row_size;
        u8 coefficient[8];
        u8 panel_misc_bits_1;
        u8 panel_misc_bits_2;
        u8 panel_misc_bits_3;
        u8 panel_misc_bits_4;
} __packed;

#define BDB_DRIVER_FEATURE_NO_LVDS              0
#define BDB_DRIVER_FEATURE_INT_LVDS             1
#define BDB_DRIVER_FEATURE_SDVO_LVDS            2
#define BDB_DRIVER_FEATURE_EDP                  3

struct bdb_driver_features {
        u8 boot_dev_algorithm:1;
        u8 block_display_switch:1;
        u8 allow_display_switch:1;
        u8 hotplug_dvo:1;
        u8 dual_view_zoom:1;
        u8 int15h_hook:1;
        u8 sprite_in_clone:1;
        u8 primary_lfp_id:1;

        u16 boot_mode_x;
        u16 boot_mode_y;
        u8 boot_mode_bpp;
        u8 boot_mode_refresh;

        u16 enable_lfp_primary:1;
        u16 selective_mode_pruning:1;
        u16 dual_frequency:1;
        u16 render_clock_freq:1; /* 0: high freq; 1: low freq */
        u16 nt_clone_support:1;
        u16 power_scheme_ui:1; /* 0: CUI; 1: 3rd party */
        u16 sprite_display_assign:1; /* 0: secondary; 1: primary */
        u16 cui_aspect_scaling:1;
        u16 preserve_aspect_ratio:1;
        u16 sdvo_device_power_down:1;
        u16 crt_hotplug:1;
        u16 lvds_config:2;
        u16 tv_hotplug:1;
        u16 hdmi_config:2;

        u8 static_display:1;
        u8 reserved2:7;
        u16 legacy_crt_max_x;
        u16 legacy_crt_max_y;
        u8 legacy_crt_max_refresh;

        u8 hdmi_termination;
        u8 custom_vbt_version;
} __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 {
        u16 t1_t3;
        u16 t8;
        u16 t9;
        u16 t10;
        u16 t11_t12;
} __attribute__ ((packed));

struct edp_link_params {
        u8 rate:4;
        u8 lanes:4;
        u8 preemphasis:4;
        u8 vswing:4;
} __attribute__ ((packed));

struct bdb_edp {
        struct edp_power_seq power_seqs[16];
        u32 color_depth;
        u32 sdrrs_msa_timing_delay;
        struct edp_link_params link_params[16];
} __attribute__ ((packed));

extern int psb_intel_init_bios(struct drm_device *dev);
extern void psb_intel_destroy_bios(struct drm_device *dev);

/*
 * Driver<->VBIOS interaction occurs through scratch bits in
 * GR18 & SWF*.
 */

/* 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_STATUS_CLOSED (1<<29) /* 0 here means open */
#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

/* Add the device class for LFP, TV, HDMI */
#define  DEVICE_TYPE_INT_LFP    0x1022
#define  DEVICE_TYPE_INT_TV     0x1009
#define  DEVICE_TYPE_HDMI       0x60D2
#define  DEVICE_TYPE_DP         0x68C6
#define  DEVICE_TYPE_eDP        0x78C6

/* define the DVO port for HDMI output type */
#define         DVO_B           1
#define         DVO_C           2
#define         DVO_D           3

/* define the PORT for DP output type */
#define         PORT_IDPB       7
#define         PORT_IDPC       8
#define         PORT_IDPD       9

#endif /* _INTEL_BIOS_H_ */