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提交 b6343073 编写于 作者: J Juan Quintela 提交者： Anthony Liguori
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cirrus_vga: Add a VGACommonState local var to cirrus_vga_ioport_{read, write} 

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
上级 25a18cbd
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Showing with 82 addition and 80 deletion
hw/cirrus_vga.c
浏览文件 @ b6343073
......@@ -2658,95 +2658,96 @@ static void cirrus_update_memory_access(CirrusVGAState *s)
static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
{
CirrusVGAState *s = opaque;
CirrusVGAState *c = opaque;
VGACommonState *s = &c->vga;
int val, index;
if (vga_ioport_invalid(&s->vga, addr)) {
if (vga_ioport_invalid(s, addr)) {
val = 0xff;
} else {
switch (addr) {
case 0x3c0:
if (s->vga.ar_flip_flop == 0) {
val = s->vga.ar_index;
if (s->ar_flip_flop == 0) {
val = s->ar_index;
} else {
val = 0;
}
break;
case 0x3c1:
index = s->vga.ar_index & 0x1f;
index = s->ar_index & 0x1f;
if (index < 21)
val = s->vga.ar[index];
val = s->ar[index];
else
val = 0;
break;
case 0x3c2:
val = s->vga.st00;
val = s->st00;
break;
case 0x3c4:
val = s->vga.sr_index;
val = s->sr_index;
break;
case 0x3c5:
if (cirrus_hook_read_sr(s, s->vga.sr_index, &val))
if (cirrus_hook_read_sr(c, s->sr_index, &val))
break;
val = s->vga.sr[s->vga.sr_index];
val = s->sr[s->sr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read SR%x = 0x%02x\n", s->vga.sr_index, val);
printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
#endif
break;
case 0x3c6:
cirrus_read_hidden_dac(s, &val);
cirrus_read_hidden_dac(c, &val);
break;
case 0x3c7:
val = s->vga.dac_state;
val = s->dac_state;
break;
case 0x3c8:
val = s->vga.dac_write_index;
s->cirrus_hidden_dac_lockindex = 0;
val = s->dac_write_index;
c->cirrus_hidden_dac_lockindex = 0;
break;
case 0x3c9:
if (cirrus_hook_read_palette(s, &val))
if (cirrus_hook_read_palette(c, &val))
break;
val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
if (++s->vga.dac_sub_index == 3) {
s->vga.dac_sub_index = 0;
s->vga.dac_read_index++;
val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
if (++s->dac_sub_index == 3) {
s->dac_sub_index = 0;
s->dac_read_index++;
}
break;
case 0x3ca:
val = s->vga.fcr;
val = s->fcr;
break;
case 0x3cc:
val = s->vga.msr;
val = s->msr;
break;
case 0x3ce:
val = s->vga.gr_index;
val = s->gr_index;
break;
case 0x3cf:
if (cirrus_hook_read_gr(s, s->vga.gr_index, &val))
if (cirrus_hook_read_gr(c, s->gr_index, &val))
break;
val = s->vga.gr[s->vga.gr_index];
val = s->gr[s->gr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read GR%x = 0x%02x\n", s->vga.gr_index, val);
printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
#endif
break;
case 0x3b4:
case 0x3d4:
val = s->vga.cr_index;
val = s->cr_index;
break;
case 0x3b5:
case 0x3d5:
if (cirrus_hook_read_cr(s, s->vga.cr_index, &val))
if (cirrus_hook_read_cr(c, s->cr_index, &val))
break;
val = s->vga.cr[s->vga.cr_index];
val = s->cr[s->cr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read CR%x = 0x%02x\n", s->vga.cr_index, val);
printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
#endif
break;
case 0x3ba:
case 0x3da:
/* just toggle to fool polling */
val = s->vga.st01 = s->vga.retrace(&s->vga);
s->vga.ar_flip_flop = 0;
val = s->st01 = s->retrace(s);
s->ar_flip_flop = 0;
break;
default:
val = 0x00;
......@@ -2761,11 +2762,12 @@ static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
CirrusVGAState *s = opaque;
CirrusVGAState *c = opaque;
VGACommonState *s = &c->vga;
int index;
/* check port range access depending on color/monochrome mode */
if (vga_ioport_invalid(&s->vga, addr)) {
if (vga_ioport_invalid(s, addr)) {
return;
}
#ifdef DEBUG_VGA
......@@ -2774,120 +2776,120 @@ static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
switch (addr) {
case 0x3c0:
if (s->vga.ar_flip_flop == 0) {
if (s->ar_flip_flop == 0) {
val &= 0x3f;
s->vga.ar_index = val;
s->ar_index = val;
} else {
index = s->vga.ar_index & 0x1f;
index = s->ar_index & 0x1f;
switch (index) {
case 0x00 ... 0x0f:
s->vga.ar[index] = val & 0x3f;
s->ar[index] = val & 0x3f;
break;
case 0x10:
s->vga.ar[index] = val & ~0x10;
s->ar[index] = val & ~0x10;
break;
case 0x11:
s->vga.ar[index] = val;
s->ar[index] = val;
break;
case 0x12:
s->vga.ar[index] = val & ~0xc0;
s->ar[index] = val & ~0xc0;
break;
case 0x13:
s->vga.ar[index] = val & ~0xf0;
s->ar[index] = val & ~0xf0;
break;
case 0x14:
s->vga.ar[index] = val & ~0xf0;
s->ar[index] = val & ~0xf0;
break;
default:
break;
}
}
s->vga.ar_flip_flop ^= 1;
s->ar_flip_flop ^= 1;
break;
case 0x3c2:
s->vga.msr = val & ~0x10;
s->vga.update_retrace_info(&s->vga);
s->msr = val & ~0x10;
s->update_retrace_info(s);
break;
case 0x3c4:
s->vga.sr_index = val;
s->sr_index = val;
break;
case 0x3c5:
if (cirrus_hook_write_sr(s, s->vga.sr_index, val))
if (cirrus_hook_write_sr(c, s->sr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write SR%x = 0x%02x\n", s->vga.sr_index, val);
printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
#endif
s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
if (s->vga.sr_index == 1) s->vga.update_retrace_info(&s->vga);
s->sr[s->sr_index] = val & sr_mask[s->sr_index];
if (s->sr_index == 1) s->update_retrace_info(s);
break;
case 0x3c6:
cirrus_write_hidden_dac(s, val);
cirrus_write_hidden_dac(c, val);
break;
case 0x3c7:
s->vga.dac_read_index = val;
s->vga.dac_sub_index = 0;
s->vga.dac_state = 3;
s->dac_read_index = val;
s->dac_sub_index = 0;
s->dac_state = 3;
break;
case 0x3c8:
s->vga.dac_write_index = val;
s->vga.dac_sub_index = 0;
s->vga.dac_state = 0;
s->dac_write_index = val;
s->dac_sub_index = 0;
s->dac_state = 0;
break;
case 0x3c9:
if (cirrus_hook_write_palette(s, val))
if (cirrus_hook_write_palette(c, val))
break;
s->vga.dac_cache[s->vga.dac_sub_index] = val;
if (++s->vga.dac_sub_index == 3) {
memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
s->vga.dac_sub_index = 0;
s->vga.dac_write_index++;
s->dac_cache[s->dac_sub_index] = val;
if (++s->dac_sub_index == 3) {
memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
s->dac_sub_index = 0;
s->dac_write_index++;
}
break;
case 0x3ce:
s->vga.gr_index = val;
s->gr_index = val;
break;
case 0x3cf:
if (cirrus_hook_write_gr(s, s->vga.gr_index, val))
if (cirrus_hook_write_gr(c, s->gr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write GR%x = 0x%02x\n", s->vga.gr_index, val);
printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
#endif
s->vga.gr[s->vga.gr_index] = val & gr_mask[s->vga.gr_index];
s->gr[s->gr_index] = val & gr_mask[s->gr_index];
break;
case 0x3b4:
case 0x3d4:
s->vga.cr_index = val;
s->cr_index = val;
break;
case 0x3b5:
case 0x3d5:
if (cirrus_hook_write_cr(s, s->vga.cr_index, val))
if (cirrus_hook_write_cr(c, s->cr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write CR%x = 0x%02x\n", s->vga.cr_index, val);
printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
#endif
/* handle CR0-7 protection */
if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) {
/* can always write bit 4 of CR7 */
if (s->vga.cr_index == 7)
s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (val & 0x10);
if (s->cr_index == 7)
s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
return;
}
switch (s->vga.cr_index) {
switch (s->cr_index) {
case 0x01: /* horizontal display end */
case 0x07:
case 0x09:
case 0x0c:
case 0x0d:
case 0x12: /* vertical display end */
s->vga.cr[s->vga.cr_index] = val;
s->cr[s->cr_index] = val;
break;
default:
s->vga.cr[s->vga.cr_index] = val;
s->cr[s->cr_index] = val;
break;
}
switch(s->vga.cr_index) {
switch(s->cr_index) {
case 0x00:
case 0x04:
case 0x05:
......@@ -2895,13 +2897,13 @@ static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
case 0x07:
case 0x11:
case 0x17:
s->vga.update_retrace_info(&s->vga);
s->update_retrace_info(s);
break;
}
break;
case 0x3ba:
case 0x3da:
s->vga.fcr = val & 0x10;
s->fcr = val & 0x10;
break;
}
}
......
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