329 lines
9.7 KiB
C
329 lines
9.7 KiB
C
/*
|
|
* QEMU JAZZ LED emulator.
|
|
*
|
|
* Copyright (c) 2007 Hervé Poussineau
|
|
*
|
|
* 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 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.
|
|
*/
|
|
|
|
#include "hw.h"
|
|
#include "mips.h"
|
|
#include "console.h"
|
|
#include "pixel_ops.h"
|
|
|
|
//#define DEBUG_LED
|
|
|
|
#ifdef DEBUG_LED
|
|
#define DPRINTF(fmt, ...) \
|
|
do { printf("jazz led: " fmt , ## __VA_ARGS__); } while (0)
|
|
#else
|
|
#define DPRINTF(fmt, ...) do {} while (0)
|
|
#endif
|
|
#define BADF(fmt, ...) \
|
|
do { fprintf(stderr, "jazz led ERROR: " fmt , ## __VA_ARGS__);} while (0)
|
|
|
|
typedef enum {
|
|
REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
|
|
} screen_state_t;
|
|
|
|
typedef struct LedState {
|
|
uint8_t segments;
|
|
DisplayState *ds;
|
|
screen_state_t state;
|
|
} LedState;
|
|
|
|
static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
LedState *s = opaque;
|
|
uint32_t val;
|
|
|
|
switch (addr) {
|
|
case 0:
|
|
val = s->segments;
|
|
break;
|
|
default:
|
|
BADF("invalid read at [" TARGET_FMT_plx "]\n", addr);
|
|
val = 0;
|
|
}
|
|
|
|
DPRINTF("read addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
|
|
|
|
return val;
|
|
}
|
|
|
|
static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
uint32_t v;
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
v = led_readb(opaque, addr) << 8;
|
|
v |= led_readb(opaque, addr + 1);
|
|
#else
|
|
v = led_readb(opaque, addr);
|
|
v |= led_readb(opaque, addr + 1) << 8;
|
|
#endif
|
|
return v;
|
|
}
|
|
|
|
static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
|
|
{
|
|
uint32_t v;
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
v = led_readb(opaque, addr) << 24;
|
|
v |= led_readb(opaque, addr + 1) << 16;
|
|
v |= led_readb(opaque, addr + 2) << 8;
|
|
v |= led_readb(opaque, addr + 3);
|
|
#else
|
|
v = led_readb(opaque, addr);
|
|
v |= led_readb(opaque, addr + 1) << 8;
|
|
v |= led_readb(opaque, addr + 2) << 16;
|
|
v |= led_readb(opaque, addr + 3) << 24;
|
|
#endif
|
|
return v;
|
|
}
|
|
|
|
static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
LedState *s = opaque;
|
|
|
|
DPRINTF("write addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
|
|
|
|
switch (addr) {
|
|
case 0:
|
|
s->segments = val;
|
|
s->state |= REDRAW_SEGMENTS;
|
|
break;
|
|
default:
|
|
BADF("invalid write of 0x%08x at [" TARGET_FMT_plx "]\n", val, addr);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
led_writeb(opaque, addr, (val >> 8) & 0xff);
|
|
led_writeb(opaque, addr + 1, val & 0xff);
|
|
#else
|
|
led_writeb(opaque, addr, val & 0xff);
|
|
led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
|
|
#endif
|
|
}
|
|
|
|
static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
|
|
{
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
led_writeb(opaque, addr, (val >> 24) & 0xff);
|
|
led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
|
|
led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
|
|
led_writeb(opaque, addr + 3, val & 0xff);
|
|
#else
|
|
led_writeb(opaque, addr, val & 0xff);
|
|
led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
|
|
led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
|
|
led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
|
|
#endif
|
|
}
|
|
|
|
static CPUReadMemoryFunc * const led_read[3] = {
|
|
led_readb,
|
|
led_readw,
|
|
led_readl,
|
|
};
|
|
|
|
static CPUWriteMemoryFunc * const led_write[3] = {
|
|
led_writeb,
|
|
led_writew,
|
|
led_writel,
|
|
};
|
|
|
|
/***********************************************************/
|
|
/* jazz_led display */
|
|
|
|
static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
|
|
{
|
|
uint8_t *d;
|
|
int x, bpp;
|
|
|
|
bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
|
|
d = ds_get_data(ds) + ds_get_linesize(ds) * posy + bpp * posx1;
|
|
switch(bpp) {
|
|
case 1:
|
|
for (x = posx1; x <= posx2; x++) {
|
|
*((uint8_t *)d) = color;
|
|
d++;
|
|
}
|
|
break;
|
|
case 2:
|
|
for (x = posx1; x <= posx2; x++) {
|
|
*((uint16_t *)d) = color;
|
|
d += 2;
|
|
}
|
|
break;
|
|
case 4:
|
|
for (x = posx1; x <= posx2; x++) {
|
|
*((uint32_t *)d) = color;
|
|
d += 4;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
|
|
{
|
|
uint8_t *d;
|
|
int y, bpp;
|
|
|
|
bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
|
|
d = ds_get_data(ds) + ds_get_linesize(ds) * posy1 + bpp * posx;
|
|
switch(bpp) {
|
|
case 1:
|
|
for (y = posy1; y <= posy2; y++) {
|
|
*((uint8_t *)d) = color;
|
|
d += ds_get_linesize(ds);
|
|
}
|
|
break;
|
|
case 2:
|
|
for (y = posy1; y <= posy2; y++) {
|
|
*((uint16_t *)d) = color;
|
|
d += ds_get_linesize(ds);
|
|
}
|
|
break;
|
|
case 4:
|
|
for (y = posy1; y <= posy2; y++) {
|
|
*((uint32_t *)d) = color;
|
|
d += ds_get_linesize(ds);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void jazz_led_update_display(void *opaque)
|
|
{
|
|
LedState *s = opaque;
|
|
DisplayState *ds = s->ds;
|
|
uint8_t *d1;
|
|
uint32_t color_segment, color_led;
|
|
int y, bpp;
|
|
|
|
if (s->state & REDRAW_BACKGROUND) {
|
|
/* clear screen */
|
|
bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
|
|
d1 = ds_get_data(ds);
|
|
for (y = 0; y < ds_get_height(ds); y++) {
|
|
memset(d1, 0x00, ds_get_width(ds) * bpp);
|
|
d1 += ds_get_linesize(ds);
|
|
}
|
|
}
|
|
|
|
if (s->state & REDRAW_SEGMENTS) {
|
|
/* set colors according to bpp */
|
|
switch (ds_get_bits_per_pixel(ds)) {
|
|
case 8:
|
|
color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
|
|
color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
|
|
break;
|
|
case 15:
|
|
color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
|
|
color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
|
|
break;
|
|
case 16:
|
|
color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
|
|
color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
|
|
case 24:
|
|
color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
|
|
color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
|
|
break;
|
|
case 32:
|
|
color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
|
|
color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
/* display segments */
|
|
draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
|
|
draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
|
|
draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
|
|
draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
|
|
draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
|
|
draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
|
|
draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
|
|
|
|
/* display led */
|
|
if (!(s->segments & 0x01))
|
|
color_led = 0; /* black */
|
|
draw_horizontal_line(ds, 68, 50, 50, color_led);
|
|
draw_horizontal_line(ds, 69, 49, 51, color_led);
|
|
draw_horizontal_line(ds, 70, 48, 52, color_led);
|
|
draw_horizontal_line(ds, 71, 49, 51, color_led);
|
|
draw_horizontal_line(ds, 72, 50, 50, color_led);
|
|
}
|
|
|
|
s->state = REDRAW_NONE;
|
|
dpy_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
|
|
}
|
|
|
|
static void jazz_led_invalidate_display(void *opaque)
|
|
{
|
|
LedState *s = opaque;
|
|
s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
|
|
}
|
|
|
|
static void jazz_led_screen_dump(void *opaque, const char *filename)
|
|
{
|
|
printf("jazz_led_screen_dump() not implemented\n");
|
|
}
|
|
|
|
static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
|
|
{
|
|
LedState *s = opaque;
|
|
char buf[2];
|
|
|
|
dpy_cursor(s->ds, -1, -1);
|
|
qemu_console_resize(s->ds, 2, 1);
|
|
|
|
/* TODO: draw the segments */
|
|
snprintf(buf, 2, "%02hhx\n", s->segments);
|
|
console_write_ch(chardata++, 0x00200100 | buf[0]);
|
|
console_write_ch(chardata++, 0x00200100 | buf[1]);
|
|
|
|
dpy_update(s->ds, 0, 0, 2, 1);
|
|
}
|
|
|
|
void jazz_led_init(target_phys_addr_t base)
|
|
{
|
|
LedState *s;
|
|
int io;
|
|
|
|
s = qemu_mallocz(sizeof(LedState));
|
|
|
|
s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
|
|
|
|
io = cpu_register_io_memory(led_read, led_write, s,
|
|
DEVICE_NATIVE_ENDIAN);
|
|
cpu_register_physical_memory(base, 1, io);
|
|
|
|
s->ds = graphic_console_init(jazz_led_update_display,
|
|
jazz_led_invalidate_display,
|
|
jazz_led_screen_dump,
|
|
jazz_led_text_update, s);
|
|
qemu_console_resize(s->ds, 60, 80);
|
|
}
|