From 12725a37af691345e74fe22d53300abec2581852 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 9 May 2008 14:19:00 -0700 Subject: i915: add basic VBT support Map the VBIOS (and therefore VBT) at init time for use by various output initialization routines. --- linux-core/intel_bios.h | 187 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 187 insertions(+) create mode 100644 linux-core/intel_bios.h (limited to 'linux-core/intel_bios.h') diff --git a/linux-core/intel_bios.h b/linux-core/intel_bios.h new file mode 100644 index 00000000..b17856de --- /dev/null +++ b/linux-core/intel_bios.h @@ -0,0 +1,187 @@ +/* + * 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 + * + */ + +#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_ */ -- cgit v1.2.3