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coreboot-kgpe-d16/util/x86emu/yabel/vbe.c
Stefan Reinauer 800379f7aa This patch implements MBI (modular bios interface) support to the i830 chipset. 
This is needed on the IP1000T to get VGA output. The VGA option rom will ask
through an SMI for hardware specifics (in form of a VBT, video bios table)
which the SMI handler copies into the VGA option rom. 

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5177 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-03-01 08:34:19 +00:00

843 lines
23 KiB
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/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net>
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#include <string.h>
#include <types.h>
#if CONFIG_BOOTSPLASH
#include <boot/coreboot_tables.h>
#endif
#include <arch/byteorder.h>
#define ntohl(x) be32_to_cpu(x)
#include "debug.h"
#include <x86emu/x86emu.h>
#include <x86emu/regs.h>
#include "../x86emu/prim_ops.h"
#include "biosemu.h"
#include "io.h"
#include "mem.h"
#include "interrupt.h"
#include "device.h"
#include <cbfs.h>
#include <delay.h>
#include "../../src/lib/jpeg.h"
// pointer to VBEInfoBuffer, set by vbe_prepare
u8 *vbe_info_buffer = 0;
// virtual BIOS Memory
u8 *biosmem;
u32 biosmem_size;
// these structs are for input from and output to OF
typedef struct {
u8 display_type; // 0=NONE, 1= analog, 2=digital
u16 screen_width;
u16 screen_height;
u16 screen_linebytes; // bytes per line in framebuffer, may be more than screen_width
u8 color_depth; // color depth in bpp
u32 framebuffer_address;
u8 edid_block_zero[128];
} __attribute__ ((__packed__)) screen_info_t;
typedef struct {
u8 signature[4];
u16 size_reserved;
u8 monitor_number;
u16 max_screen_width;
u8 color_depth;
} __attribute__ ((__packed__)) screen_info_input_t;
// these structs only store a subset of the VBE defined fields
// only those needed.
typedef struct {
char signature[4];
u16 version;
u8 *oem_string_ptr;
u32 capabilities;
u16 video_mode_list[256]; // lets hope we never have more than 256 video modes...
u16 total_memory;
} vbe_info_t;
typedef struct {
u16 mode_attributes; // 00
u8 win_a_attributes; // 02
u8 win_b_attributes; // 03
u16 win_granularity; // 04
u16 win_size; // 06
u16 win_a_segment; // 08
u16 win_b_segment; // 0a
u32 win_func_ptr; // 0c
u16 bytes_per_scanline; // 10
u16 x_resolution; // 12
u16 y_resolution; // 14
u8 x_charsize; // 16
u8 y_charsize; // 17
u8 number_of_planes; // 18
u8 bits_per_pixel; // 19
u8 number_of_banks; // 20
u8 memory_model; // 21
u8 bank_size; // 22
u8 number_of_image_pages; // 23
u8 reserved_page;
u8 red_mask_size;
u8 red_mask_pos;
u8 green_mask_size;
u8 green_mask_pos;
u8 blue_mask_size;
u8 blue_mask_pos;
u8 reserved_mask_size;
u8 reserved_mask_pos;
u8 direct_color_mode_info;
u32 phys_base_ptr;
u32 offscreen_mem_offset;
u16 offscreen_mem_size;
u8 reserved[206];
} __attribute__ ((__packed__)) vesa_mode_info_t;
typedef struct {
u16 video_mode;
union {
vesa_mode_info_t vesa;
u8 mode_info_block[256];
};
// our crap
//u16 attributes;
//u16 linebytes;
//u16 x_resolution;
//u16 y_resolution;
//u8 x_charsize;
//u8 y_charsize;
//u8 bits_per_pixel;
//u8 memory_model;
//u32 framebuffer_address;
} vbe_mode_info_t;
typedef struct {
u8 port_number; // i.e. monitor number
u8 edid_transfer_time;
u8 ddc_level;
u8 edid_block_zero[128];
} vbe_ddc_info_t;
static inline u8
vbe_prepare(void)
{
vbe_info_buffer = biosmem + (VBE_SEGMENT << 4); // segment:offset off VBE Data Area
//clear buffer
memset(vbe_info_buffer, 0, 512);
//set VbeSignature to "VBE2" to indicate VBE 2.0+ request
vbe_info_buffer[0] = 'V';
vbe_info_buffer[0] = 'B';
vbe_info_buffer[0] = 'E';
vbe_info_buffer[0] = '2';
// ES:DI store pointer to buffer in virtual mem see vbe_info_buffer above...
M.x86.R_EDI = 0x0;
M.x86.R_ES = VBE_SEGMENT;
return 0; // successfull init
}
// VBE Function 00h
u8
vbe_info(vbe_info_t * info)
{
vbe_prepare();
// call VBE function 00h (Info Function)
M.x86.R_EAX = 0x4f00;
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE("%s: VBE Info Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: VBE Info Function Return Code NOT OK! AH=%x\n",
__func__, M.x86.R_AH);
return M.x86.R_AH;
}
//printf("VBE Info Dump:");
//dump(vbe_info_buffer, 64);
//offset 0: signature
info->signature[0] = vbe_info_buffer[0];
info->signature[1] = vbe_info_buffer[1];
info->signature[2] = vbe_info_buffer[2];
info->signature[3] = vbe_info_buffer[3];
// offset 4: 16bit le containing VbeVersion
info->version = in16le(vbe_info_buffer + 4);
// offset 6: 32bit le containg segment:offset of OEM String in virtual Mem.
info->oem_string_ptr =
biosmem + ((in16le(vbe_info_buffer + 8) << 4) +
in16le(vbe_info_buffer + 6));
// offset 10: 32bit le capabilities
info->capabilities = in32le(vbe_info_buffer + 10);
// offset 14: 32 bit le containing segment:offset of supported video mode table
u16 *video_mode_ptr;
video_mode_ptr =
(u16 *) (biosmem +
((in16le(vbe_info_buffer + 16) << 4) +
in16le(vbe_info_buffer + 14)));
u32 i = 0;
do {
info->video_mode_list[i] = in16le(video_mode_ptr + i);
i++;
}
while ((i <
(sizeof(info->video_mode_list) /
sizeof(info->video_mode_list[0])))
&& (info->video_mode_list[i - 1] != 0xFFFF));
//offset 18: 16bit le total memory in 64KB blocks
info->total_memory = in16le(vbe_info_buffer + 18);
return 0;
}
// VBE Function 01h
u8
vbe_get_mode_info(vbe_mode_info_t * mode_info)
{
vbe_prepare();
// call VBE function 01h (Return VBE Mode Info Function)
M.x86.R_EAX = 0x4f01;
M.x86.R_CX = mode_info->video_mode;
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Return Mode Info Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: VBE Return Mode Info (mode: %04x) Function Return Code NOT OK! AH=%02x\n",
__func__, mode_info->video_mode, M.x86.R_AH);
return M.x86.R_AH;
}
//pointer to mode_info_block is in ES:DI
memcpy(mode_info->mode_info_block,
biosmem + ((M.x86.R_ES << 4) + M.x86.R_DI),
sizeof(mode_info->mode_info_block));
//printf("Mode Info Dump:");
//dump(mode_info_block, 64);
return 0;
}
// VBE Function 02h
u8
vbe_set_mode(vbe_mode_info_t * mode_info)
{
vbe_prepare();
// call VBE function 02h (Set VBE Mode Function)
M.x86.R_EAX = 0x4f02;
M.x86.R_BX = mode_info->video_mode;
M.x86.R_BX |= 0x4000; // set bit 14 to request linear framebuffer mode
M.x86.R_BX &= 0x7FFF; // clear bit 15 to request clearing of framebuffer
DEBUG_PRINTF_VBE("%s: setting mode: 0x%04x\n", __func__,
M.x86.R_BX);
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Set Mode Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: mode: %x VBE Set Mode Function Return Code NOT OK! AH=%x\n",
__func__, mode_info->video_mode, M.x86.R_AH);
return M.x86.R_AH;
}
return 0;
}
//VBE Function 08h
u8
vbe_set_palette_format(u8 format)
{
vbe_prepare();
// call VBE function 09h (Set/Get Palette Data Function)
M.x86.R_EAX = 0x4f08;
M.x86.R_BL = 0x00; // set format
M.x86.R_BH = format;
DEBUG_PRINTF_VBE("%s: setting palette format: %d\n", __func__,
format);
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Format Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Format Function Return Code NOT OK! AH=%x\n",
__func__, M.x86.R_AH);
return M.x86.R_AH;
}
return 0;
}
// VBE Function 09h
u8
vbe_set_color(u16 color_number, u32 color_value)
{
vbe_prepare();
// call VBE function 09h (Set/Get Palette Data Function)
M.x86.R_EAX = 0x4f09;
M.x86.R_BL = 0x00; // set color
M.x86.R_CX = 0x01; // set only one entry
M.x86.R_DX = color_number;
// ES:DI is address where color_value is stored, we store it at 2000:0000
M.x86.R_ES = 0x2000;
M.x86.R_DI = 0x0;
// store color value at ES:DI
out32le(biosmem + (M.x86.R_ES << 4) + M.x86.R_DI, color_value);
DEBUG_PRINTF_VBE("%s: setting color #%x: 0x%04x\n", __func__,
color_number, color_value);
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Function Return Code NOT OK! AH=%x\n",
__func__, M.x86.R_AH);
return M.x86.R_AH;
}
return 0;
}
u8
vbe_get_color(u16 color_number, u32 * color_value)
{
vbe_prepare();
// call VBE function 09h (Set/Get Palette Data Function)
M.x86.R_EAX = 0x4f09;
M.x86.R_BL = 0x00; // get color
M.x86.R_CX = 0x01; // get only one entry
M.x86.R_DX = color_number;
// ES:DI is address where color_value is stored, we store it at 2000:0000
M.x86.R_ES = 0x2000;
M.x86.R_DI = 0x0;
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: VBE Set Palette Function Return Code NOT OK! AH=%x\n",
__func__, M.x86.R_AH);
return M.x86.R_AH;
}
// read color value from ES:DI
*color_value = in32le(biosmem + (M.x86.R_ES << 4) + M.x86.R_DI);
DEBUG_PRINTF_VBE("%s: getting color #%x --> 0x%04x\n", __func__,
color_number, *color_value);
return 0;
}
// VBE Function 15h
u8
vbe_get_ddc_info(vbe_ddc_info_t * ddc_info)
{
vbe_prepare();
// call VBE function 15h (DDC Info Function)
M.x86.R_EAX = 0x4f15;
M.x86.R_BL = 0x00; // get DDC Info
M.x86.R_CX = ddc_info->port_number;
M.x86.R_ES = 0x0;
M.x86.R_DI = 0x0;
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Get DDC Info Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: port: %x VBE Get DDC Info Function Return Code NOT OK! AH=%x\n",
__func__, ddc_info->port_number, M.x86.R_AH);
return M.x86.R_AH;
}
// BH = approx. time in seconds to transfer one EDID block
ddc_info->edid_transfer_time = M.x86.R_BH;
// BL = DDC Level
ddc_info->ddc_level = M.x86.R_BL;
vbe_prepare();
// call VBE function 15h (DDC Info Function)
M.x86.R_EAX = 0x4f15;
M.x86.R_BL = 0x01; // read EDID
M.x86.R_CX = ddc_info->port_number;
M.x86.R_DX = 0x0; // block number
// ES:DI is address where EDID is stored, we store it at 2000:0000
M.x86.R_ES = 0x2000;
M.x86.R_DI = 0x0;
// enable trace
CHECK_DBG(DEBUG_TRACE_X86EMU) {
X86EMU_trace_on();
}
// run VESA Interrupt
runInt10();
if (M.x86.R_AL != 0x4f) {
DEBUG_PRINTF_VBE
("%s: VBE Read EDID Function NOT supported! AL=%x\n",
__func__, M.x86.R_AL);
return -1;
}
if (M.x86.R_AH != 0x0) {
DEBUG_PRINTF_VBE
("%s: port: %x VBE Read EDID Function Return Code NOT OK! AH=%x\n",
__func__, ddc_info->port_number, M.x86.R_AH);
return M.x86.R_AH;
}
memcpy(ddc_info->edid_block_zero,
biosmem + (M.x86.R_ES << 4) + M.x86.R_DI,
sizeof(ddc_info->edid_block_zero));
return 0;
}
u32
vbe_get_info(void)
{
u8 rval;
int i;
// XXX FIXME these need to be filled with sane values
// get a copy of input struct...
screen_info_input_t input;
// output is pointer to the address passed as argv[4]
screen_info_t local_output;
screen_info_t *output = &local_output;
// zero input
memset(&input, 0, sizeof(screen_info_input_t));
// zero output
memset(&output, 0, sizeof(screen_info_t));
vbe_info_t info;
rval = vbe_info(&info);
if (rval != 0)
return rval;
DEBUG_PRINTF_VBE("VbeSignature: %s\n", info.signature);
DEBUG_PRINTF_VBE("VbeVersion: 0x%04x\n", info.version);
DEBUG_PRINTF_VBE("OemString: %s\n", info.oem_string_ptr);
DEBUG_PRINTF_VBE("Capabilities:\n");
DEBUG_PRINTF_VBE("\tDAC: %s\n",
(info.capabilities & 0x1) ==
0 ? "fixed 6bit" : "switchable 6/8bit");
DEBUG_PRINTF_VBE("\tVGA: %s\n",
(info.capabilities & 0x2) ==
0 ? "compatible" : "not compatible");
DEBUG_PRINTF_VBE("\tRAMDAC: %s\n",
(info.capabilities & 0x4) ==
0 ? "normal" : "use blank bit in Function 09h");
// argv[4] may be a pointer with enough space to return screen_info_t
// as input, it must contain a screen_info_input_t with the following content:
// byte[0:3] = "DDC\0" (zero-terminated signature header)
// byte[4:5] = reserved space for the return struct... just in case we ever change
// the struct and dont have reserved enough memory (and let's hope the struct
// never gets larger than 64KB)
// byte[6] = monitor port number for DDC requests ("only" one byte... so lets hope we never have more than 255 monitors...
// byte[7:8] = max. screen width (OF may want to limit this)
// byte[9] = required color depth in bpp
if (strncmp((char *) input.signature, "DDC", 4) != 0) {
printf
("%s: Invalid input signature! expected: %s, is: %s\n",
__func__, "DDC", input.signature);
return -1;
}
if (input.size_reserved != sizeof(screen_info_t)) {
printf
("%s: Size of return struct is wrong, required: %d, available: %d\n",
__func__, (int) sizeof(screen_info_t),
input.size_reserved);
return -1;
}
vbe_ddc_info_t ddc_info;
ddc_info.port_number = input.monitor_number;
vbe_get_ddc_info(&ddc_info);
#if 0
DEBUG_PRINTF_VBE("DDC: edid_tranfer_time: %d\n",
ddc_info.edid_transfer_time);
DEBUG_PRINTF_VBE("DDC: ddc_level: %x\n", ddc_info.ddc_level);
DEBUG_PRINTF_VBE("DDC: EDID: \n");
CHECK_DBG(DEBUG_VBE) {
dump(ddc_info.edid_block_zero,
sizeof(ddc_info.edid_block_zero));
}
#endif
if (*((u64 *) ddc_info.edid_block_zero) !=
(u64) 0x00FFFFFFFFFFFF00) {
// invalid EDID signature... probably no monitor
output->display_type = 0x0;
return 0;
} else if ((ddc_info.edid_block_zero[20] & 0x80) != 0) {
// digital display
output->display_type = 2;
} else {
// analog
output->display_type = 1;
}
DEBUG_PRINTF_VBE("DDC: found display type %d\n", output->display_type);
memcpy(output->edid_block_zero, ddc_info.edid_block_zero,
sizeof(ddc_info.edid_block_zero));
i = 0;
vbe_mode_info_t mode_info;
vbe_mode_info_t best_mode_info;
// initialize best_mode to 0
memset(&best_mode_info, 0, sizeof(best_mode_info));
while ((mode_info.video_mode = info.video_mode_list[i]) != 0xFFFF) {
//DEBUG_PRINTF_VBE("%x: Mode: %04x\n", i, mode_info.video_mode);
vbe_get_mode_info(&mode_info);
// FIXME all these values are little endian!
DEBUG_PRINTF_VBE("Video Mode 0x%04x available, %s\n",
mode_info.video_mode,
(mode_info.attributes & 0x1) ==
0 ? "not supported" : "supported");
DEBUG_PRINTF_VBE("\tTTY: %s\n",
(mode_info.attributes & 0x4) ==
0 ? "no" : "yes");
DEBUG_PRINTF_VBE("\tMode: %s %s\n",
(mode_info.attributes & 0x8) ==
0 ? "monochrome" : "color",
(mode_info.attributes & 0x10) ==
0 ? "text" : "graphics");
DEBUG_PRINTF_VBE("\tVGA: %s\n",
(mode_info.attributes & 0x20) ==
0 ? "compatible" : "not compatible");
DEBUG_PRINTF_VBE("\tWindowed Mode: %s\n",
(mode_info.attributes & 0x40) ==
0 ? "yes" : "no");
DEBUG_PRINTF_VBE("\tFramebuffer: %s\n",
(mode_info.attributes & 0x80) ==
0 ? "no" : "yes");
DEBUG_PRINTF_VBE("\tResolution: %dx%d\n",
mode_info.x_resolution,
mode_info.y_resolution);
DEBUG_PRINTF_VBE("\tChar Size: %dx%d\n",
mode_info.x_charsize, mode_info.y_charsize);
DEBUG_PRINTF_VBE("\tColor Depth: %dbpp\n",
mode_info.bits_per_pixel);
DEBUG_PRINTF_VBE("\tMemory Model: 0x%x\n",
mode_info.memory_model);
DEBUG_PRINTF_VBE("\tFramebuffer Offset: %08x\n",
mode_info.framebuffer_address);
if ((mode_info.vesa.bits_per_pixel == input.color_depth)
&& (le16_to_cpu(mode_info.vesa.x_resolution) <= input.max_screen_width)
&& ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x80) != 0) // framebuffer mode
&& ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x10) != 0) // graphics
&& ((le16_to_cpu(mode_info.vesa.mode_attributes) & 0x8) != 0) // color
&& (le16_to_cpu(mode_info.vesa.x_resolution) > le16_to_cpu(best_mode_info.vesa.x_resolution))) // better than previous best_mode
{
// yiiiihaah... we found a new best mode
memcpy(&best_mode_info, &mode_info, sizeof(mode_info));
}
i++;
}
if (best_mode_info.video_mode != 0) {
DEBUG_PRINTF_VBE
("Best Video Mode found: 0x%x, %dx%d, %dbpp, framebuffer_address: 0x%x\n",
best_mode_info.video_mode,
best_mode_info.x_resolution,
best_mode_info.y_resolution,
best_mode_info.bits_per_pixel,
best_mode_info.framebuffer_address);
//printf("Mode Info Dump:");
//dump(best_mode_info.mode_info_block, 64);
// set the video mode
vbe_set_mode(&best_mode_info);
if ((info.capabilities & 0x1) != 0) {
// switch to 8 bit palette format
vbe_set_palette_format(8);
}
// setup a palette:
// - first 216 colors are mixed colors for each component in 6 steps
// (6*6*6=216)
// - then 10 shades of the three primary colors
// - then 10 shades of grey
// -------
// = 256 colors
//
// - finally black is color 0 and white color FF (because SLOF expects it
// this way...)
// this resembles the palette that the kernel/X Server seems to expect...
u8 mixed_color_values[6] =
{ 0xFF, 0xDA, 0xB3, 0x87, 0x54, 0x00 };
u8 primary_color_values[10] =
{ 0xF3, 0xE7, 0xCD, 0xC0, 0xA5, 0x96, 0x77, 0x66, 0x3F,
0x27
};
u8 mc_size = sizeof(mixed_color_values);
u8 prim_size = sizeof(primary_color_values);
u8 curr_color_index;
u32 curr_color;
u8 r, g, b;
// 216 mixed colors
for (r = 0; r < mc_size; r++) {
for (g = 0; g < mc_size; g++) {
for (b = 0; b < mc_size; b++) {
curr_color_index =
(r * mc_size * mc_size) +
(g * mc_size) + b;
curr_color = 0;
curr_color |= ((u32) mixed_color_values[r]) << 16; //red value
curr_color |= ((u32) mixed_color_values[g]) << 8; //green value
curr_color |= (u32) mixed_color_values[b]; //blue value
vbe_set_color(curr_color_index,
curr_color);
}
}
}
// 10 shades of each primary color
// red
for (r = 0; r < prim_size; r++) {
curr_color_index = mc_size * mc_size * mc_size + r;
curr_color = ((u32) primary_color_values[r]) << 16;
vbe_set_color(curr_color_index, curr_color);
}
//green
for (g = 0; g < prim_size; g++) {
curr_color_index =
mc_size * mc_size * mc_size + prim_size + g;
curr_color = ((u32) primary_color_values[g]) << 8;
vbe_set_color(curr_color_index, curr_color);
}
//blue
for (b = 0; b < prim_size; b++) {
curr_color_index =
mc_size * mc_size * mc_size + prim_size * 2 + b;
curr_color = (u32) primary_color_values[b];
vbe_set_color(curr_color_index, curr_color);
}
// 10 shades of grey
for (i = 0; i < prim_size; i++) {
curr_color_index =
mc_size * mc_size * mc_size + prim_size * 3 + i;
curr_color = 0;
curr_color |= ((u32) primary_color_values[i]) << 16; //red
curr_color |= ((u32) primary_color_values[i]) << 8; //green
curr_color |= ((u32) primary_color_values[i]); //blue
vbe_set_color(curr_color_index, curr_color);
}
// SLOF is using color 0x0 (black) and 0xFF (white) to draw to the screen...
vbe_set_color(0x00, 0x00000000);
vbe_set_color(0xFF, 0x00FFFFFF);
output->screen_width = le16_to_cpu(best_mode_info.vesa.x_resolution);
output->screen_height = le16_to_cpu(best_mode_info.vesa.y_resolution);
output->screen_linebytes = le16_to_cpu(best_mode_info.vesa.bytes_per_scanline);
output->color_depth = best_mode_info.vesa.bits_per_pixel;
output->framebuffer_address =
le32_to_cpu(best_mode_info.vesa.phys_base_ptr);
} else {
printf("%s: No suitable video mode found!\n", __func__);
//unset display_type...
output->display_type = 0;
}
return 0;
}
#if CONFIG_BOOTSPLASH
vbe_mode_info_t mode_info;
void vbe_set_graphics(void)
{
u8 rval;
int i;
vbe_info_t info;
rval = vbe_info(&info);
if (rval != 0)
return;
DEBUG_PRINTF_VBE("VbeSignature: %s\n", info.signature);
DEBUG_PRINTF_VBE("VbeVersion: 0x%04x\n", info.version);
DEBUG_PRINTF_VBE("OemString: %s\n", info.oem_string_ptr);
DEBUG_PRINTF_VBE("Capabilities:\n");
DEBUG_PRINTF_VBE("\tDAC: %s\n",
(info.capabilities & 0x1) ==
0 ? "fixed 6bit" : "switchable 6/8bit");
DEBUG_PRINTF_VBE("\tVGA: %s\n",
(info.capabilities & 0x2) ==
0 ? "compatible" : "not compatible");
DEBUG_PRINTF_VBE("\tRAMDAC: %s\n",
(info.capabilities & 0x4) ==
0 ? "normal" : "use blank bit in Function 09h");
mode_info.video_mode = (1 << 14) | CONFIG_FRAMEBUFFER_VESA_MODE;
vbe_get_mode_info(&mode_info);
unsigned char *framebuffer =
(unsigned char *) le32_to_cpu(mode_info.vesa.phys_base_ptr);
DEBUG_PRINTF_VBE("FRAMEBUFFER: 0x%08x\n", framebuffer);
vbe_set_mode(&mode_info);
struct jpeg_decdata *decdata;
decdata = malloc(sizeof(*decdata));
/* Switching Intel IGD to 1MB video memory will break this. Who
* cares. */
int imagesize = 1024*768*2;
unsigned char *jpeg = cbfs_find_file("bootsplash.jpg", CBFS_TYPE_BOOTSPLASH);
if (!jpeg) {
DEBUG_PRINTF_VBE("Could not find bootsplash.jpg\n");
return;
}
DEBUG_PRINTF_VBE("Splash at %08x ...\n", jpeg);
dump(jpeg, 64);
int ret = 0;
DEBUG_PRINTF_VBE("Decompressing boot splash screen...\n");
ret = jpeg_decode(jpeg, framebuffer, 1024, 768, 16, decdata);
DEBUG_PRINTF_VBE("returns %x\n", ret);
}
void fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
{
framebuffer->physical_address = le32_to_cpu(mode_info.vesa.phys_base_ptr);
framebuffer->x_resolution = le16_to_cpu(mode_info.vesa.x_resolution);
framebuffer->y_resolution = le16_to_cpu(mode_info.vesa.y_resolution);
framebuffer->bytes_per_line = le16_to_cpu(mode_info.vesa.bytes_per_scanline);
framebuffer->bits_per_pixel = mode_info.vesa.bits_per_pixel;
framebuffer->red_mask_pos = mode_info.vesa.red_mask_pos;
framebuffer->red_mask_size = mode_info.vesa.red_mask_size;
framebuffer->green_mask_pos = mode_info.vesa.green_mask_pos;
framebuffer->green_mask_size = mode_info.vesa.green_mask_size;
framebuffer->blue_mask_pos = mode_info.vesa.blue_mask_pos;
framebuffer->blue_mask_size = mode_info.vesa.blue_mask_size;
framebuffer->reserved_mask_pos = mode_info.vesa.reserved_mask_pos;
framebuffer->reserved_mask_size = mode_info.vesa.reserved_mask_size;
}
void vbe_textmode_console(void)
{
/* Wait, just a little bit more, pleeeease ;-) */
delay(2);
M.x86.R_EAX = 0x0003;
runInt10();
}
#endif
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