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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 "drmP.h"
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 */
} __attribute__((packed));
struct bdb_header {
u8 signature[16]; /**< Always 'BIOS_DATA_BLOCK' */
u16 version; /**< decimal */
u16 header_size; /**< in bytes */
u16 bdb_size; /**< in bytes */
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;
u8 resize_pci_bios;
u8 rsvd5;
u8 rsvd6[3];
u8 panel_fitting:2;
u8 flexaim:1;
u8 msg_enable:1;
u8 clear_screen:1;
u8 color_flip:1;
u8 rsvd7:2; /* finish byte */
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 */
u8 disable_smooth_vision:1;
u8 single_dvi:1;
u8 rsvd9:6; /* finish byte */
u8 legacy_monitor_detect:1;
u8 rsvd10:7; /* finish byte */
u8 int_crt_support:1;
u8 int_tv_support:1;
u8 rsvd11:6; /* finish byte */
} __attribute__((packed));
#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 {
u8 id; /**< 40 */
u16 size;
u8 panel_type;
u8 reserved0;
u16 caps;
} __attribute__((packed));
struct lvds_bdb_2_fp_params {
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;
} __attribute__((packed));
struct lvds_bdb_2_fp_edid_dtd {
u16 dclk; /**< In 10khz */
u8 hactive;
u8 hblank;
u8 high_h; /**< 7:4 = hactive 11:8, 3:0 = hblank 11:8 */
u8 vactive;
u8 vblank;
u8 high_v; /**< 7:4 = vactive 11:8, 3:0 = vblank 11:8 */
u8 hsync_off;
u8 hsync_pulse_width;
u8 vsync_off;
u8 high_hsync_off; /**< 7:6 = hsync off 9:8 */
u8 h_image;
u8 v_image;
u8 max_hv;
u8 h_border;
u8 v_border;
u8 flags;
#define FP_EDID_FLAG_VSYNC_POSITIVE (1 << 2)
#define FP_EDID_FLAG_HSYNC_POSITIVE (1 << 1)
} __attribute__((packed));
struct lvds_bdb_2_entry {
u16 fp_params_offset; /**< From beginning of BDB */
u8 fp_params_size;
u16 fp_edid_dtd_offset;
u8 fp_edid_dtd_size;
u16 fp_edid_pid_offset;
u8 fp_edid_pid_size;
} __attribute__((packed));
struct lvds_bdb_2 {
u8 id; /**< 41 */
u16 size;
u8 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];
u16 aimdb_version;
u16 aimdb_header_size;
u16 aimdb_size;
} __attribute__((packed));
struct aimdb_block {
u8 aimdb_id;
u16 aimdb_size;
} __attribute__((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;
} __attribute__((packed));
struct vch_bdb_22 {
struct aimdb_block aimdb_block;
struct vch_panel_data panels[16];
} __attribute__((packed));
bool intel_find_bios(struct drm_device *dev);
#endif /* _I830_BIOS_H_ */
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