/* vga.c -- Definition of types and structures for VGA/LCD
|
/* vga.c -- Definition of types and structures for VGA/LCD
|
Copyright (C) 2001 Marko Mlinar, markom@opencores.org
|
Copyright (C) 2001 Marko Mlinar, markom@opencores.org
|
|
|
This file is part of OpenRISC 1000 Architectural Simulator.
|
This file is part of OpenRISC 1000 Architectural Simulator.
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 2 of the License, or
|
the Free Software Foundation; either version 2 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <string.h>
|
#include <string.h>
|
|
|
#include "config.h"
|
#include "config.h"
|
|
|
#ifdef HAVE_INTTYPES_H
|
#ifdef HAVE_INTTYPES_H
|
#include <inttypes.h>
|
#include <inttypes.h>
|
#endif
|
#endif
|
|
|
#include "port.h"
|
#include "port.h"
|
#include "arch.h"
|
#include "arch.h"
|
#include "sim-config.h"
|
#include "sim-config.h"
|
#include "vga.h"
|
#include "vga.h"
|
#include "abstract.h"
|
#include "abstract.h"
|
#include "sched.h"
|
#include "sched.h"
|
|
|
/* When this counter reaches config.vgas[].refresh_rate, a screenshot is taken and outputted */
|
/* When this counter reaches config.vgas[].refresh_rate, a screenshot is taken and outputted */
|
struct vga_state {
|
struct vga_state {
|
int enabled;
|
int enabled;
|
int pics;
|
int pics;
|
unsigned long ctrl, stat, htim, vtim;
|
unsigned long ctrl, stat, htim, vtim;
|
int vbindex;
|
int vbindex;
|
unsigned long vbar[2];
|
unsigned long vbar[2];
|
unsigned hlen, vlen;
|
unsigned hlen, vlen;
|
int pindex;
|
int pindex;
|
unsigned long palette[2][256];
|
unsigned long palette[2][256];
|
oraddr_t baseaddr;
|
oraddr_t baseaddr;
|
int refresh_rate;
|
int refresh_rate;
|
int irq;
|
int irq;
|
char *filename;
|
char *filename;
|
};
|
};
|
|
|
|
|
/* Write a register */
|
/* Write a register */
|
void vga_write32(oraddr_t addr, uint32_t value, void *dat)
|
void vga_write32(oraddr_t addr, uint32_t value, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
|
|
addr -= vga->baseaddr;
|
addr -= vga->baseaddr;
|
|
|
switch (addr) {
|
switch (addr) {
|
case VGA_CTRL: vga->ctrl = value; break;
|
case VGA_CTRL: vga->ctrl = value; break;
|
case VGA_STAT: vga->stat = value; break;
|
case VGA_STAT: vga->stat = value; break;
|
case VGA_HTIM: vga->htim = value; break;
|
case VGA_HTIM: vga->htim = value; break;
|
case VGA_VTIM: vga->vtim = value; break;
|
case VGA_VTIM: vga->vtim = value; break;
|
case VGA_HVLEN: vga->hlen = (value >> 16) + 2; vga->hlen = (value & 0xffff) + 2; break;
|
case VGA_HVLEN: vga->hlen = (value >> 16) + 2; vga->hlen = (value & 0xffff) + 2; break;
|
case VGA_VBARA: vga->vbar[0] = value; break;
|
case VGA_VBARA: vga->vbar[0] = value; break;
|
case VGA_VBARB: vga->vbar[1] = value; break;
|
case VGA_VBARB: vga->vbar[1] = value; break;
|
default:
|
default:
|
if (addr >= VGA_CLUTA && addr < VGA_CLUTB) {
|
if (addr >= VGA_CLUTA && addr < VGA_CLUTB) {
|
vga->palette[0][addr - VGA_CLUTA] = value & 0x00ffffff;
|
vga->palette[0][addr - VGA_CLUTA] = value & 0x00ffffff;
|
} else if (addr >= VGA_CLUTB) {
|
} else if (addr >= VGA_CLUTB) {
|
vga->palette[1][addr - VGA_CLUTB] = value & 0x00ffffff;
|
vga->palette[1][addr - VGA_CLUTB] = value & 0x00ffffff;
|
} else {
|
} else {
|
fprintf( stderr, "vga_write32( 0x%"PRIxADDR", 0x%08"PRIx32" ): Out of range\n", addr + vga->baseaddr, value);
|
fprintf( stderr, "vga_write32( 0x%"PRIxADDR", 0x%08"PRIx32" ): Out of range\n", addr + vga->baseaddr, value);
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Read a register */
|
/* Read a register */
|
uint32_t vga_read32(oraddr_t addr, void *dat)
|
uint32_t vga_read32(oraddr_t addr, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
|
|
addr -= vga->baseaddr;
|
addr -= vga->baseaddr;
|
|
|
switch (addr) {
|
switch (addr) {
|
case VGA_CTRL: return vga->ctrl;
|
case VGA_CTRL: return vga->ctrl;
|
case VGA_STAT: return vga->stat;
|
case VGA_STAT: return vga->stat;
|
case VGA_HTIM: return vga->htim;
|
case VGA_HTIM: return vga->htim;
|
case VGA_VTIM: return vga->vtim;
|
case VGA_VTIM: return vga->vtim;
|
case VGA_HVLEN: return ((vga->hlen - 2) << 16) | (vga->vlen - 2);
|
case VGA_HVLEN: return ((vga->hlen - 2) << 16) | (vga->vlen - 2);
|
case VGA_VBARA: return vga->vbar[0];
|
case VGA_VBARA: return vga->vbar[0];
|
case VGA_VBARB: return vga->vbar[1];
|
case VGA_VBARB: return vga->vbar[1];
|
default:
|
default:
|
if (addr >= VGA_CLUTA && addr < VGA_CLUTB) {
|
if (addr >= VGA_CLUTA && addr < VGA_CLUTB) {
|
return vga->palette[0][addr - VGA_CLUTA];
|
return vga->palette[0][addr - VGA_CLUTA];
|
} else if (addr >= VGA_CLUTB) {
|
} else if (addr >= VGA_CLUTB) {
|
return vga->palette[1][addr - VGA_CLUTB];
|
return vga->palette[1][addr - VGA_CLUTB];
|
} else {
|
} else {
|
fprintf( stderr, "vga_read32( 0x%"PRIxADDR" ): Out of range\n", addr);
|
fprintf( stderr, "vga_read32( 0x%"PRIxADDR" ): Out of range\n", addr);
|
return 0;
|
return 0;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* This code will only work on little endian machines */
|
/* This code will only work on little endian machines */
|
#ifdef __BIG_ENDIAN__
|
#ifdef __BIG_ENDIAN__
|
#warning Image dump not supported on big endian machines
|
#warning Image dump not supported on big endian machines
|
|
|
static int vga_dump_image (char *filename, struct vga_start *vga)
|
static int vga_dump_image (char *filename, struct vga_start *vga)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
|
|
#else
|
#else
|
|
|
typedef struct {
|
typedef struct {
|
unsigned short int type; /* Magic identifier */
|
unsigned short int type; /* Magic identifier */
|
unsigned int size; /* File size in bytes */
|
unsigned int size; /* File size in bytes */
|
unsigned short int reserved1, reserved2;
|
unsigned short int reserved1, reserved2;
|
unsigned int offset; /* Offset to image data, bytes */
|
unsigned int offset; /* Offset to image data, bytes */
|
} BMP_HEADER;
|
} BMP_HEADER;
|
|
|
typedef struct {
|
typedef struct {
|
unsigned int size; /* Header size in bytes */
|
unsigned int size; /* Header size in bytes */
|
int width,height; /* Width and height of image */
|
int width,height; /* Width and height of image */
|
unsigned short int planes; /* Number of colour planes */
|
unsigned short int planes; /* Number of colour planes */
|
unsigned short int bits; /* Bits per pixel */
|
unsigned short int bits; /* Bits per pixel */
|
unsigned int compression; /* Compression type */
|
unsigned int compression; /* Compression type */
|
unsigned int imagesize; /* Image size in bytes */
|
unsigned int imagesize; /* Image size in bytes */
|
int xresolution,yresolution; /* Pixels per meter */
|
int xresolution,yresolution; /* Pixels per meter */
|
unsigned int ncolours; /* Number of colours */
|
unsigned int ncolours; /* Number of colours */
|
unsigned int importantcolours; /* Important colours */
|
unsigned int importantcolours; /* Important colours */
|
} INFOHEADER;
|
} INFOHEADER;
|
|
|
|
|
/* Dumps a bmp file, based on current image */
|
/* Dumps a bmp file, based on current image */
|
static int vga_dump_image (char *filename, struct vga_state *vga)
|
static int vga_dump_image (char *filename, struct vga_state *vga)
|
{
|
{
|
int sx = vga->hlen;
|
int sx = vga->hlen;
|
int sy = vga->vlen;
|
int sy = vga->vlen;
|
int i, x, y;
|
int i, x, y;
|
int pc = vga->ctrl & VGA_CTRL_PC;
|
int pc = vga->ctrl & VGA_CTRL_PC;
|
int rbpp = vga->ctrl & VGA_CTRL_CD;
|
int rbpp = vga->ctrl & VGA_CTRL_CD;
|
int bpp = rbpp >> 8;
|
int bpp = rbpp >> 8;
|
|
|
BMP_HEADER bh;
|
BMP_HEADER bh;
|
INFOHEADER ih;
|
INFOHEADER ih;
|
FILE *fo;
|
FILE *fo;
|
|
|
if (!sx || !sy) return 1;
|
if (!sx || !sy) return 1;
|
|
|
/* 16bpp and 32 bpp will be converted to 24bpp */
|
/* 16bpp and 32 bpp will be converted to 24bpp */
|
if (bpp == 1 || bpp == 3) bpp = 2;
|
if (bpp == 1 || bpp == 3) bpp = 2;
|
|
|
bh.type = 19778; /* BM */
|
bh.type = 19778; /* BM */
|
bh.size = sizeof (BMP_HEADER) + sizeof (INFOHEADER) + sx * sy * (bpp * 4 + 4) + (pc ? 1024 : 0);
|
bh.size = sizeof (BMP_HEADER) + sizeof (INFOHEADER) + sx * sy * (bpp * 4 + 4) + (pc ? 1024 : 0);
|
bh.reserved1 = bh.reserved2 = 0;
|
bh.reserved1 = bh.reserved2 = 0;
|
bh.offset = sizeof (BMP_HEADER) + sizeof (INFOHEADER) + (pc ? 1024 : 0);
|
bh.offset = sizeof (BMP_HEADER) + sizeof (INFOHEADER) + (pc ? 1024 : 0);
|
|
|
ih.size = sizeof (INFOHEADER);
|
ih.size = sizeof (INFOHEADER);
|
ih.width = sx; ih.height = sy;
|
ih.width = sx; ih.height = sy;
|
ih.planes = 1; ih.bits = bpp * 4 + 4;
|
ih.planes = 1; ih.bits = bpp * 4 + 4;
|
ih.compression = 0; ih.imagesize = x * y * (bpp * 4 + 4);
|
ih.compression = 0; ih.imagesize = x * y * (bpp * 4 + 4);
|
ih.xresolution = ih.yresolution = 0;
|
ih.xresolution = ih.yresolution = 0;
|
ih.ncolours = 0; /* should be generated */
|
ih.ncolours = 0; /* should be generated */
|
ih.importantcolours = 0; /* all are important */
|
ih.importantcolours = 0; /* all are important */
|
|
|
fo = fopen (filename, "wb+");
|
fo = fopen (filename, "wb+");
|
if (!fwrite (&bh, sizeof (BMP_HEADER), 1, fo)) return 1;
|
if (!fwrite (&bh, sizeof (BMP_HEADER), 1, fo)) return 1;
|
if (!fwrite (&ih, sizeof (INFOHEADER), 1, fo)) return 1;
|
if (!fwrite (&ih, sizeof (INFOHEADER), 1, fo)) return 1;
|
|
|
if (pc) { /* Write palette? */
|
if (pc) { /* Write palette? */
|
for (i = 0; i < 256; i++) {
|
for (i = 0; i < 256; i++) {
|
unsigned long val, d;
|
unsigned long val, d;
|
d = vga->palette[vga->pindex][i];
|
d = vga->palette[vga->pindex][i];
|
val = (d >> 0) & 0xff; /* Blue */
|
val = (d >> 0) & 0xff; /* Blue */
|
val |= (d >> 8) & 0xff; /* Green */
|
val |= (d >> 8) & 0xff; /* Green */
|
val |= (d >> 16) & 0xff; /* Red */
|
val |= (d >> 16) & 0xff; /* Red */
|
if (!fwrite (&val, sizeof (val), 1, fo)) return 1;
|
if (!fwrite (&val, sizeof (val), 1, fo)) return 1;
|
}
|
}
|
}
|
}
|
|
|
/* Data is stored upside down */
|
/* Data is stored upside down */
|
for (y = sy - 1; y >= 0; y--) {
|
for (y = sy - 1; y >= 0; y--) {
|
int align = 4 - ((bpp + 1) * sx) % 4;
|
int align = 4 - ((bpp + 1) * sx) % 4;
|
int zero = 0;
|
int zero = 0;
|
for (x = 0; x < sx; x++) {
|
for (x = 0; x < sx; x++) {
|
unsigned long pixel = evalsim_mem32 (vga->vbar[vga->vbindex] + (y * sx + x) * (bpp + 1));
|
int breakpoint;
|
|
unsigned long pixel = eval_direct32 (vga->vbar[vga->vbindex] + (y * sx + x) * (bpp + 1), &breakpoint, 0, 0);
|
if (!fwrite (&pixel, sizeof (pixel), 1, fo)) return 1;
|
if (!fwrite (&pixel, sizeof (pixel), 1, fo)) return 1;
|
}
|
}
|
if (!fwrite (&zero, align, 1, fo)) return 1;
|
if (!fwrite (&zero, align, 1, fo)) return 1;
|
}
|
}
|
|
|
fclose (fo);
|
fclose (fo);
|
return 0;
|
return 0;
|
}
|
}
|
#endif /* !__BIG_ENDIAN__ */
|
#endif /* !__BIG_ENDIAN__ */
|
|
|
void vga_job (void *dat)
|
void vga_job (void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
/* dump the image? */
|
/* dump the image? */
|
char temp[STR_SIZE];
|
char temp[STR_SIZE];
|
sprintf (temp, "%s%04i.bmp", vga->filename, vga->pics++);
|
sprintf (temp, "%s%04i.bmp", vga->filename, vga->pics++);
|
vga_dump_image (temp, vga);
|
vga_dump_image (temp, vga);
|
|
|
SCHED_ADD(vga_job, dat, vga->refresh_rate);
|
SCHED_ADD(vga_job, dat, vga->refresh_rate);
|
}
|
}
|
|
|
/* Reset all VGAs */
|
/* Reset all VGAs */
|
void vga_reset (void *dat)
|
void vga_reset (void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
|
|
int i;
|
int i;
|
|
|
/* Init palette */
|
/* Init palette */
|
for (i = 0; i < 256; i++)
|
for (i = 0; i < 256; i++)
|
vga->palette[0][i] = vga->palette[1][i] = 0;
|
vga->palette[0][i] = vga->palette[1][i] = 0;
|
|
|
vga->ctrl = vga->stat = vga->htim = vga->vtim = 0;
|
vga->ctrl = vga->stat = vga->htim = vga->vtim = 0;
|
vga->hlen = vga->vlen = 0;
|
vga->hlen = vga->vlen = 0;
|
vga->vbar[0] = vga->vbar[1] = 0;
|
vga->vbar[0] = vga->vbar[1] = 0;
|
|
|
/* Init screen dumping machine */
|
/* Init screen dumping machine */
|
vga->pics = 0;
|
vga->pics = 0;
|
|
|
vga->pindex = 0;
|
vga->pindex = 0;
|
vga->vbindex = 0;
|
vga->vbindex = 0;
|
|
|
SCHED_ADD(vga_job, dat, vga->refresh_rate);
|
SCHED_ADD(vga_job, dat, vga->refresh_rate);
|
}
|
}
|
|
|
/*----------------------------------------------------[ VGA Configuration ]---*/
|
/*----------------------------------------------------[ VGA Configuration ]---*/
|
void vga_baseaddr(union param_val val, void *dat)
|
void vga_baseaddr(union param_val val, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
vga->baseaddr = val.addr_val;
|
vga->baseaddr = val.addr_val;
|
}
|
}
|
|
|
void vga_irq(union param_val val, void *dat)
|
void vga_irq(union param_val val, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
vga->irq = val.int_val;
|
vga->irq = val.int_val;
|
}
|
}
|
|
|
void vga_refresh_rate(union param_val val, void *dat)
|
void vga_refresh_rate(union param_val val, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
vga->refresh_rate = val.int_val;
|
vga->refresh_rate = val.int_val;
|
}
|
}
|
|
|
void vga_filename(union param_val val, void *dat)
|
void vga_filename(union param_val val, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
if(!(vga->filename = strdup (val.str_val)));
|
if(!(vga->filename = strdup (val.str_val)));
|
}
|
}
|
|
|
void vga_enabled(union param_val val, void *dat)
|
void vga_enabled(union param_val val, void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
vga->enabled = val.int_val;
|
vga->enabled = val.int_val;
|
}
|
}
|
|
|
void *vga_sec_start(void)
|
void *vga_sec_start(void)
|
{
|
{
|
struct vga_state *new = malloc(sizeof(struct vga_state));
|
struct vga_state *new = malloc(sizeof(struct vga_state));
|
|
|
if(!new) {
|
if(!new) {
|
fprintf(stderr, "Peripheral VGA: Run out of memory\n");
|
fprintf(stderr, "Peripheral VGA: Run out of memory\n");
|
exit(-1);
|
exit(-1);
|
}
|
}
|
|
|
new->baseaddr = 0;
|
new->baseaddr = 0;
|
new->enabled = 1;
|
new->enabled = 1;
|
|
|
return new;
|
return new;
|
}
|
}
|
|
|
void vga_sec_end(void *dat)
|
void vga_sec_end(void *dat)
|
{
|
{
|
struct vga_state *vga = dat;
|
struct vga_state *vga = dat;
|
|
|
if(!vga->enabled) {
|
if(!vga->enabled) {
|
free(dat);
|
free(dat);
|
return;
|
return;
|
}
|
}
|
|
|
if (vga->baseaddr)
|
if (vga->baseaddr)
|
register_memoryarea(vga->baseaddr, VGA_ADDR_SPACE, 4, 0, vga_read32, vga_write32, dat);
|
register_memoryarea(vga->baseaddr, VGA_ADDR_SPACE, 4, 0, vga_read32, vga_write32, dat);
|
|
|
reg_sim_reset(vga_reset, dat);
|
reg_sim_reset(vga_reset, dat);
|
}
|
}
|
|
|
void reg_vga_sec(void)
|
void reg_vga_sec(void)
|
{
|
{
|
struct config_section *sec = reg_config_sec("vga", vga_sec_start, vga_sec_end);
|
struct config_section *sec = reg_config_sec("vga", vga_sec_start, vga_sec_end);
|
|
|
reg_config_param(sec, "baseaddr", paramt_addr, vga_baseaddr);
|
reg_config_param(sec, "baseaddr", paramt_addr, vga_baseaddr);
|
reg_config_param(sec, "enabled", paramt_int, vga_enabled);
|
reg_config_param(sec, "enabled", paramt_int, vga_enabled);
|
reg_config_param(sec, "irq", paramt_int, vga_irq);
|
reg_config_param(sec, "irq", paramt_int, vga_irq);
|
reg_config_param(sec, "refresh_rate", paramt_int, vga_refresh_rate);
|
reg_config_param(sec, "refresh_rate", paramt_int, vga_refresh_rate);
|
reg_config_param(sec, "filename", paramt_str, vga_filename);
|
reg_config_param(sec, "filename", paramt_str, vga_filename);
|
}
|
}
|
|
|
