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Add Bochs VBE VGA support

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git-svn-id: svn://coreboot.org/openbios/openbios-devel@258 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Stefan Reinauer
2008-11-24 12:38:23 +00:00
parent d6cd6543aa
commit 34f110b694
10 changed files with 190 additions and 51 deletions
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26
arch/ppc/qemu/console.c
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@@ -131,24 +131,26 @@ typedef struct osi_fb_info {
} osi_fb_info_t;
#define openbios_GetFBInfo(x) Qemu_GetFBInfo(x)
#include "../../../modules/font_8x16.c"
#include "../../../modules/video.c"
#include "../../../modules/console.c"
static uint32_t vga_phys_mem;
static int vga_width, vga_height, vga_depth;
int Qemu_GetFBInfo( osi_fb_info_t *fb )
{
fb->w=1024;
fb->h=768;
fb->depth=15;
fb->rb=2048;
fb->mphys=0x84000000;
fb->mphys = vga_phys_mem;
fb->w = vga_width;
fb->h = vga_height;
fb->depth = vga_depth;
fb->rb = fb->w * ((fb->depth + 7) / 8);
return 0;
}
#define openbios_GetFBInfo(x) Qemu_GetFBInfo(x)
#include "../../../modules/video.c"
#include "../../../modules/console.c"
/* ******************************************************************
* common functions, implementing simple concurrent console
* ****************************************************************** */

1
arch/ppc/qemu/init.c
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@@ -118,7 +118,6 @@ arch_of_init( void )
#endif
node_methods_init();
init_video();
#if USE_RTAS
if( !(ph=find_dev("/rtas")) )

3
config/examples/cross-ppc_config.xml
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@@ -25,7 +25,7 @@
<option name="CONFIG_DEBUG_INTERPRETER" type="boolean" value="false"/>
<option name="CONFIG_DEBUG_CONSOLE" type="boolean" value="true"/>
<option name="CONFIG_DEBUG_CONSOLE_SERIAL" type="boolean" value="true"/>
<option name="CONFIG_SERIAL_PORT" type="boolean" value="true"/>
<option name="CONFIG_SERIAL_PORT" type="integer" value="1"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="115200"/>
<option name="CONFIG_DEBUG_CONSOLE_VGA" type="boolean" value="true"/>
@@ -67,6 +67,7 @@
<option name="CONFIG_IDE_NUM_CHANNELS" type="integer" value="4"/>
<option name="CONFIG_DEBUG_IDE" type="boolean" value="false"/>
<option name="CONFIG_DRIVER_ADB" type="boolean" value="true"/>
<option name="CONFIG_DRIVER_VGA" type="boolean" value="true"/>
</config>

1
drivers/build.xml
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@@ -14,6 +14,7 @@
<object source="obio.c" condition="DRIVER_OBIO"/>
<object source="vga_load_regs.c" condition="DRIVER_VGA"/>
<object source="vga_set_mode.c" condition="DRIVER_VGA"/>
<object source="vga_vbe.c" condition="DRIVER_VGA"/>
</library>
<dictionary name="openbios" target="forth">

2
drivers/pci.c
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@@ -301,11 +301,9 @@ static pci_dev_t vga_devices[] = {
static int vga_config_cb (pci_config_t *config)
{
#if 0
if (config->regions[0] != 0x00000000)
vga_vbe_init(config->path, config->regions[0], config->sizes[0],
config->regions[1], config->sizes[1]);
#endif
return 0;
}

2
drivers/vga.h
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@@ -90,6 +90,8 @@ void vga_hardware_fixup(void);
#define SEQ_I 0x3C4 /* Sequencer Index */
#define PEL_IW 0x3C8 /* PEL Write Index */
#define PEL_IR 0x3C7 /* PEL Read Index */
#define DAC_REG 0x3C8 /* DAC register */
#define DAC_VAL 0x3C9 /* DAC value */
/* standard VGA indexes max counts */
#define CRTC_C 25 /* 25 CRT Controller Registers sequentially set*/

8
drivers/vga_load_regs.c
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@@ -22,6 +22,8 @@
*
*/
static int depth;
// prototypes
static int vga_decode_var(const struct screeninfo *var, struct vga_par *par);
static int vga_set_regs(const struct vga_par *par);
@@ -124,11 +126,7 @@ static const struct screeninfo vga_settings = {
0, // activate now
-1,-1, // height and width in mm
0, // accel flags
39721, // pixclock: 79442 -> 12.587 Mhz (NOT USED)
// 70616 -> 14.161
// 39721 -> 25.175
// 35308 -> 28.322
39721, // pixclock
48, 16, 39, 8, // margins left,right,upper,lower
96, // hsync length
2, // vsync length

131
drivers/vga_vbe.c Normal file
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@@ -0,0 +1,131 @@
/*
* Copyright (c) 2004-2005 Fabrice Bellard
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License V2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "openbios/config.h"
#include "openbios/kernel.h"
#include "openbios/bindings.h"
#include "openbios/pci.h"
#include "asm/io.h"
/* VGA init. We use the Bochs VESA VBE extensions */
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_NB 0xa
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
static void vbe_outw(int index, int val)
{
outw(index, 0x1ce);
outw(val, 0x1d0);
}
/* for depth = 8 mode, set a hardware palette entry */
void vga_set_color(int i, unsigned int r, unsigned int g, unsigned int b)
{
r &= 0xff;
g &= 0xff;
b &= 0xff;
outb(i, 0x3c8);
outb(r >> 2, 0x3c9);
outb(g >> 2, 0x3c9);
outb(b >> 2, 0x3c9);
}
/* build standard RGB palette */
static void vga_build_rgb_palette(void)
{
static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
int i, r, g, b;
i = 0;
for(r = 0; r < 6; r++) {
for(g = 0; g < 6; g++) {
for(b = 0; b < 6; b++) {
vga_set_color(i, pal_value[r], pal_value[g], pal_value[b]);
i++;
}
}
}
}
/* depth = 8, 15, 16 or 32 */
void vga_vbe_set_mode(int width, int height, int depth)
{
outb(0x00, 0x3c0); /* enable blanking */
vbe_outw(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_DISABLED);
vbe_outw(VBE_DISPI_INDEX_X_OFFSET, 0);
vbe_outw(VBE_DISPI_INDEX_Y_OFFSET, 0);
vbe_outw(VBE_DISPI_INDEX_XRES, width);
vbe_outw(VBE_DISPI_INDEX_YRES, height);
vbe_outw(VBE_DISPI_INDEX_BPP, depth);
vbe_outw(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
outb(0x00, 0x3c0);
outb(0x20, 0x3c0); /* disable blanking */
if (depth == 8)
vga_build_rgb_palette();
}
void vga_vbe_init(char *path, uint32_t fb, uint32_t fb_size,
uint32_t rom, uint32_t rom_size)
{
phandle_t ph, chosen, aliases;
vga_vbe_set_mode(800, 600, 8);
ph = find_dev(path);
set_int_property(ph, "width", 800);
set_int_property(ph, "height", 600);
set_int_property(ph, "depth", 8);
set_int_property(ph, "linebytes", 800);
set_int_property(ph, "address", fb & ~0x0000000F);
chosen = find_dev("/chosen");
set_int_property(chosen, "display", ph);
aliases = find_dev("/aliases");
set_property(aliases, "screen", path, strlen(path) + 1);
if (rom_size >= 8) {
const uint8_t *p;
int size;
p = rom;
if (p[0] == 'N' && p[1] == 'D' && p[2] == 'R' && p[3] == 'V') {
size = *(uint32_t*)(p + 4);
set_property(ph, "driver,AAPL,MacOS,PowerPC",
p + 8, size);
}
}
init_video(fb, 800, 600, 8, 800);
}

15
modules/console.c
View File

@@ -153,21 +153,8 @@ scroll1( void )
osi_fb_info_t fb;
int i, x, offs, size, *dest, *src;
openbios_GetFBInfo( &fb );
video_scroll( FONT_ADJ_HEIGHT );
offs = fb.rb * FONT_ADJ_HEIGHT;
size = (fb.h * fb.rb - offs)/16;
dest = (int*)fb.mphys;
src = (int*)(fb.mphys + offs);
for( i=0; i<size; i++ ) {
dest[0] = src[0];
dest[1] = src[1];
dest[2] = src[2];
dest[3] = src[3];
dest += 4;
src += 4;
}
for( x=0; x<cons.w; x++ )
cons.buf[(cons.h-1)*cons.w + x] = 0;
draw_line(cons.h-1);

52
modules/video.c
View File

@@ -146,7 +146,7 @@ fill_rect( int col_ind, int x, int y, int w, int h )
while( ww-- )
*p++ = col;
} else {
char *p = (char*)pp + x;
char *p = (ushort*)pp + x;
while( ww-- )
*p++ = col;
}
@@ -179,9 +179,32 @@ set_color( int ind, ulong color )
dac[1] = ((color >> 8) & 0xff) << 24; // Green
dac[1] = (color & 0xff) << 24; // Blue
}
#else
vga_set_color(ind, ((color >> 16) & 0xff),
((color >> 8) & 0xff),
(color & 0xff));
#endif
}
void
video_scroll( int height )
{
int i, x, offs, size, *dest, *src;
offs = video.fb.rb * height;
size = (video.fb.h * video.fb.rb - offs)/16;
dest = (int*)video.fb.mphys;
src = (int*)(video.fb.mphys + offs);
for( i=0; i<size; i++ ) {
dest[0] = src[0];
dest[1] = src[1];
dest[2] = src[2];
dest[3] = src[3];
dest += 4;
src += 4;
}
}
/************************************************************************/
/* OF methods */
@@ -257,14 +280,18 @@ video_write(void)
PUSH(len);
}
#if 0
static void
video_open(void)
{
RET(-1);
}
#endif
NODE_METHODS( video ) = {
#if 0
{"open", video_open },
#endif
{"dimensions", video_dimensions },
{"set-colors", video_set_colors },
{"fill-rectangle", video_fill_rect },
@@ -278,22 +305,15 @@ NODE_METHODS( video ) = {
/************************************************************************/
void
init_video( void )
init_video( uint32_t fb, int width, int height, int depth, int rb )
{
int i, s, size;
phandle_t ph=0;
if( openbios_GetFBInfo(&video.fb) ) {
printk("init_video: No video display\n");
return;
}
while( (ph=dt_iterate_type(ph, "display")) ) {
set_property( ph, "width", (char*)&video.fb.w, 4 );
set_property( ph, "height", (char*)&video.fb.h, 4 );
set_property( ph, "depth", (char*)&video.fb.depth, 4 );
set_property( ph, "linebytes", (char*)&video.fb.rb, 4 );
set_property( ph, "address", (char*)&video.fb.mphys, 4 );
}
video.fb.mphys = fb;
video.fb.w = width;
video.fb.h = height;
video.fb.depth = depth;
video.fb.rb = rb;
video.has_video = 1;
video.pal = malloc( 256 * sizeof(int) );
@@ -306,7 +326,7 @@ init_video( void )
ofmem_claim_virt( video.fb.mphys, size, 0 );
ofmem_map( video.fb.mphys, video.fb.mphys, size, -1 );
#endif
for( i=0; i<256; i++ )
set_color( i, i * 0x010101 );