4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 #include "pixel_ops.h"
30 #include "qemu-timer.h"
34 //#define DEBUG_VGA_MEM
35 //#define DEBUG_VGA_REG
37 //#define DEBUG_BOCHS_VBE
39 /* force some bits to zero */
40 const uint8_t sr_mask
[8] = {
51 const uint8_t gr_mask
[16] = {
70 #define cbswap_32(__x) \
72 (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
73 (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \
74 (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \
75 (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) ))
77 #ifdef WORDS_BIGENDIAN
78 #define PAT(x) cbswap_32(x)
83 #ifdef WORDS_BIGENDIAN
89 #ifdef WORDS_BIGENDIAN
90 #define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff)
92 #define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff)
95 static const uint32_t mask16
[16] = {
116 #ifdef WORDS_BIGENDIAN
119 #define PAT(x) cbswap_32(x)
122 static const uint32_t dmask16
[16] = {
141 static const uint32_t dmask4
[4] = {
148 static uint32_t expand4
[256];
149 static uint16_t expand2
[256];
150 static uint8_t expand4to8
[16];
152 static void vga_screen_dump(void *opaque
, const char *filename
);
154 static void vga_dumb_update_retrace_info(VGAState
*s
)
159 static void vga_precise_update_retrace_info(VGAState
*s
)
162 int hretr_start_char
;
163 int hretr_skew_chars
;
167 int vretr_start_line
;
170 int div2
, sldiv2
, dots
;
173 const int clk_hz
[] = {25175000, 28322000, 25175000, 25175000};
174 int64_t chars_per_sec
;
175 struct vga_precise_retrace
*r
= &s
->retrace_info
.precise
;
177 htotal_chars
= s
->cr
[0x00] + 5;
178 hretr_start_char
= s
->cr
[0x04];
179 hretr_skew_chars
= (s
->cr
[0x05] >> 5) & 3;
180 hretr_end_char
= s
->cr
[0x05] & 0x1f;
182 vtotal_lines
= (s
->cr
[0x06]
183 | (((s
->cr
[0x07] & 1) | ((s
->cr
[0x07] >> 4) & 2)) << 8)) + 2
185 vretr_start_line
= s
->cr
[0x10]
186 | ((((s
->cr
[0x07] >> 2) & 1) | ((s
->cr
[0x07] >> 6) & 2)) << 8)
188 vretr_end_line
= s
->cr
[0x11] & 0xf;
191 div2
= (s
->cr
[0x17] >> 2) & 1;
192 sldiv2
= (s
->cr
[0x17] >> 3) & 1;
194 clocking_mode
= (s
->sr
[0x01] >> 3) & 1;
195 clock_sel
= (s
->msr
>> 2) & 3;
196 dots
= (s
->msr
& 1) ? 8 : 9;
198 chars_per_sec
= clk_hz
[clock_sel
] / dots
;
200 htotal_chars
<<= clocking_mode
;
202 r
->total_chars
= vtotal_lines
* htotal_chars
;
204 r
->ticks_per_char
= ticks_per_sec
/ (r
->total_chars
* r
->freq
);
206 r
->ticks_per_char
= ticks_per_sec
/ chars_per_sec
;
209 r
->vstart
= vretr_start_line
;
210 r
->vend
= r
->vstart
+ vretr_end_line
+ 1;
212 r
->hstart
= hretr_start_char
+ hretr_skew_chars
;
213 r
->hend
= r
->hstart
+ hretr_end_char
+ 1;
214 r
->htotal
= htotal_chars
;
226 "div2 = %d sldiv2 = %d\n"
227 "clocking_mode = %d\n"
228 "clock_sel = %d %d\n"
230 "ticks/char = %lld\n"
232 (double) ticks_per_sec
/ (r
->ticks_per_char
* r
->total_chars
),
250 static uint8_t vga_precise_retrace(VGAState
*s
)
252 struct vga_precise_retrace
*r
= &s
->retrace_info
.precise
;
253 uint8_t val
= s
->st01
& ~(ST01_V_RETRACE
| ST01_DISP_ENABLE
);
255 if (r
->total_chars
) {
256 int cur_line
, cur_line_char
, cur_char
;
259 cur_tick
= qemu_get_clock(vm_clock
);
261 cur_char
= (cur_tick
/ r
->ticks_per_char
) % r
->total_chars
;
262 cur_line
= cur_char
/ r
->htotal
;
264 if (cur_line
>= r
->vstart
&& cur_line
<= r
->vend
) {
265 val
|= ST01_V_RETRACE
| ST01_DISP_ENABLE
;
267 cur_line_char
= cur_char
% r
->htotal
;
268 if (cur_line_char
>= r
->hstart
&& cur_line_char
<= r
->hend
) {
269 val
|= ST01_DISP_ENABLE
;
275 return s
->st01
^ (ST01_V_RETRACE
| ST01_DISP_ENABLE
);
279 static uint8_t vga_dumb_retrace(VGAState
*s
)
281 return s
->st01
^ (ST01_V_RETRACE
| ST01_DISP_ENABLE
);
284 static uint32_t vga_ioport_read(void *opaque
, uint32_t addr
)
286 VGAState
*s
= opaque
;
289 /* check port range access depending on color/monochrome mode */
290 if ((addr
>= 0x3b0 && addr
<= 0x3bf && (s
->msr
& MSR_COLOR_EMULATION
)) ||
291 (addr
>= 0x3d0 && addr
<= 0x3df && !(s
->msr
& MSR_COLOR_EMULATION
))) {
296 if (s
->ar_flip_flop
== 0) {
303 index
= s
->ar_index
& 0x1f;
316 val
= s
->sr
[s
->sr_index
];
318 printf("vga: read SR%x = 0x%02x\n", s
->sr_index
, val
);
325 val
= s
->dac_write_index
;
328 val
= s
->palette
[s
->dac_read_index
* 3 + s
->dac_sub_index
];
329 if (++s
->dac_sub_index
== 3) {
330 s
->dac_sub_index
= 0;
344 val
= s
->gr
[s
->gr_index
];
346 printf("vga: read GR%x = 0x%02x\n", s
->gr_index
, val
);
355 val
= s
->cr
[s
->cr_index
];
357 printf("vga: read CR%x = 0x%02x\n", s
->cr_index
, val
);
362 /* just toggle to fool polling */
363 val
= s
->st01
= s
->retrace(s
);
371 #if defined(DEBUG_VGA)
372 printf("VGA: read addr=0x%04x data=0x%02x\n", addr
, val
);
377 static void vga_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
)
379 VGAState
*s
= opaque
;
382 /* check port range access depending on color/monochrome mode */
383 if ((addr
>= 0x3b0 && addr
<= 0x3bf && (s
->msr
& MSR_COLOR_EMULATION
)) ||
384 (addr
>= 0x3d0 && addr
<= 0x3df && !(s
->msr
& MSR_COLOR_EMULATION
)))
388 printf("VGA: write addr=0x%04x data=0x%02x\n", addr
, val
);
393 if (s
->ar_flip_flop
== 0) {
397 index
= s
->ar_index
& 0x1f;
400 s
->ar
[index
] = val
& 0x3f;
403 s
->ar
[index
] = val
& ~0x10;
409 s
->ar
[index
] = val
& ~0xc0;
412 s
->ar
[index
] = val
& ~0xf0;
415 s
->ar
[index
] = val
& ~0xf0;
421 s
->ar_flip_flop
^= 1;
424 s
->msr
= val
& ~0x10;
425 s
->update_retrace_info(s
);
428 s
->sr_index
= val
& 7;
432 printf("vga: write SR%x = 0x%02x\n", s
->sr_index
, val
);
434 s
->sr
[s
->sr_index
] = val
& sr_mask
[s
->sr_index
];
435 if (s
->sr_index
== 1) s
->update_retrace_info(s
);
438 s
->dac_read_index
= val
;
439 s
->dac_sub_index
= 0;
443 s
->dac_write_index
= val
;
444 s
->dac_sub_index
= 0;
448 s
->dac_cache
[s
->dac_sub_index
] = val
;
449 if (++s
->dac_sub_index
== 3) {
450 memcpy(&s
->palette
[s
->dac_write_index
* 3], s
->dac_cache
, 3);
451 s
->dac_sub_index
= 0;
452 s
->dac_write_index
++;
456 s
->gr_index
= val
& 0x0f;
460 printf("vga: write GR%x = 0x%02x\n", s
->gr_index
, val
);
462 s
->gr
[s
->gr_index
] = val
& gr_mask
[s
->gr_index
];
471 printf("vga: write CR%x = 0x%02x\n", s
->cr_index
, val
);
473 /* handle CR0-7 protection */
474 if ((s
->cr
[0x11] & 0x80) && s
->cr_index
<= 7) {
475 /* can always write bit 4 of CR7 */
476 if (s
->cr_index
== 7)
477 s
->cr
[7] = (s
->cr
[7] & ~0x10) | (val
& 0x10);
480 switch(s
->cr_index
) {
481 case 0x01: /* horizontal display end */
486 case 0x12: /* vertical display end */
487 s
->cr
[s
->cr_index
] = val
;
490 s
->cr
[s
->cr_index
] = val
;
494 switch(s
->cr_index
) {
502 s
->update_retrace_info(s
);
513 #ifdef CONFIG_BOCHS_VBE
514 static uint32_t vbe_ioport_read_index(void *opaque
, uint32_t addr
)
516 VGAState
*s
= opaque
;
522 static uint32_t vbe_ioport_read_data(void *opaque
, uint32_t addr
)
524 VGAState
*s
= opaque
;
527 if (s
->vbe_index
<= VBE_DISPI_INDEX_NB
) {
528 if (s
->vbe_regs
[VBE_DISPI_INDEX_ENABLE
] & VBE_DISPI_GETCAPS
) {
529 switch(s
->vbe_index
) {
530 /* XXX: do not hardcode ? */
531 case VBE_DISPI_INDEX_XRES
:
532 val
= VBE_DISPI_MAX_XRES
;
534 case VBE_DISPI_INDEX_YRES
:
535 val
= VBE_DISPI_MAX_YRES
;
537 case VBE_DISPI_INDEX_BPP
:
538 val
= VBE_DISPI_MAX_BPP
;
541 val
= s
->vbe_regs
[s
->vbe_index
];
545 val
= s
->vbe_regs
[s
->vbe_index
];
550 #ifdef DEBUG_BOCHS_VBE
551 printf("VBE: read index=0x%x val=0x%x\n", s
->vbe_index
, val
);
556 static void vbe_ioport_write_index(void *opaque
, uint32_t addr
, uint32_t val
)
558 VGAState
*s
= opaque
;
562 static void vbe_ioport_write_data(void *opaque
, uint32_t addr
, uint32_t val
)
564 VGAState
*s
= opaque
;
566 if (s
->vbe_index
<= VBE_DISPI_INDEX_NB
) {
567 #ifdef DEBUG_BOCHS_VBE
568 printf("VBE: write index=0x%x val=0x%x\n", s
->vbe_index
, val
);
570 switch(s
->vbe_index
) {
571 case VBE_DISPI_INDEX_ID
:
572 if (val
== VBE_DISPI_ID0
||
573 val
== VBE_DISPI_ID1
||
574 val
== VBE_DISPI_ID2
||
575 val
== VBE_DISPI_ID3
||
576 val
== VBE_DISPI_ID4
) {
577 s
->vbe_regs
[s
->vbe_index
] = val
;
580 case VBE_DISPI_INDEX_XRES
:
581 if ((val
<= VBE_DISPI_MAX_XRES
) && ((val
& 7) == 0)) {
582 s
->vbe_regs
[s
->vbe_index
] = val
;
585 case VBE_DISPI_INDEX_YRES
:
586 if (val
<= VBE_DISPI_MAX_YRES
) {
587 s
->vbe_regs
[s
->vbe_index
] = val
;
590 case VBE_DISPI_INDEX_BPP
:
593 if (val
== 4 || val
== 8 || val
== 15 ||
594 val
== 16 || val
== 24 || val
== 32) {
595 s
->vbe_regs
[s
->vbe_index
] = val
;
598 case VBE_DISPI_INDEX_BANK
:
599 if (s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] == 4) {
600 val
&= (s
->vbe_bank_mask
>> 2);
602 val
&= s
->vbe_bank_mask
;
604 s
->vbe_regs
[s
->vbe_index
] = val
;
605 s
->bank_offset
= (val
<< 16);
607 case VBE_DISPI_INDEX_ENABLE
:
608 if ((val
& VBE_DISPI_ENABLED
) &&
609 !(s
->vbe_regs
[VBE_DISPI_INDEX_ENABLE
] & VBE_DISPI_ENABLED
)) {
610 int h
, shift_control
;
612 s
->vbe_regs
[VBE_DISPI_INDEX_VIRT_WIDTH
] =
613 s
->vbe_regs
[VBE_DISPI_INDEX_XRES
];
614 s
->vbe_regs
[VBE_DISPI_INDEX_VIRT_HEIGHT
] =
615 s
->vbe_regs
[VBE_DISPI_INDEX_YRES
];
616 s
->vbe_regs
[VBE_DISPI_INDEX_X_OFFSET
] = 0;
617 s
->vbe_regs
[VBE_DISPI_INDEX_Y_OFFSET
] = 0;
619 if (s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] == 4)
620 s
->vbe_line_offset
= s
->vbe_regs
[VBE_DISPI_INDEX_XRES
] >> 1;
622 s
->vbe_line_offset
= s
->vbe_regs
[VBE_DISPI_INDEX_XRES
] *
623 ((s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] + 7) >> 3);
624 s
->vbe_start_addr
= 0;
626 /* clear the screen (should be done in BIOS) */
627 if (!(val
& VBE_DISPI_NOCLEARMEM
)) {
628 memset(s
->vram_ptr
, 0,
629 s
->vbe_regs
[VBE_DISPI_INDEX_YRES
] * s
->vbe_line_offset
);
632 /* we initialize the VGA graphic mode (should be done
634 s
->gr
[0x06] = (s
->gr
[0x06] & ~0x0c) | 0x05; /* graphic mode + memory map 1 */
635 s
->cr
[0x17] |= 3; /* no CGA modes */
636 s
->cr
[0x13] = s
->vbe_line_offset
>> 3;
638 s
->cr
[0x01] = (s
->vbe_regs
[VBE_DISPI_INDEX_XRES
] >> 3) - 1;
639 /* height (only meaningful if < 1024) */
640 h
= s
->vbe_regs
[VBE_DISPI_INDEX_YRES
] - 1;
642 s
->cr
[0x07] = (s
->cr
[0x07] & ~0x42) |
643 ((h
>> 7) & 0x02) | ((h
>> 3) & 0x40);
644 /* line compare to 1023 */
649 if (s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] == 4) {
651 s
->sr
[0x01] &= ~8; /* no double line */
654 s
->sr
[4] |= 0x08; /* set chain 4 mode */
655 s
->sr
[2] |= 0x0f; /* activate all planes */
657 s
->gr
[0x05] = (s
->gr
[0x05] & ~0x60) | (shift_control
<< 5);
658 s
->cr
[0x09] &= ~0x9f; /* no double scan */
660 /* XXX: the bios should do that */
663 s
->dac_8bit
= (val
& VBE_DISPI_8BIT_DAC
) > 0;
664 s
->vbe_regs
[s
->vbe_index
] = val
;
666 case VBE_DISPI_INDEX_VIRT_WIDTH
:
668 int w
, h
, line_offset
;
670 if (val
< s
->vbe_regs
[VBE_DISPI_INDEX_XRES
])
673 if (s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] == 4)
674 line_offset
= w
>> 1;
676 line_offset
= w
* ((s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] + 7) >> 3);
677 h
= s
->vram_size
/ line_offset
;
678 /* XXX: support weird bochs semantics ? */
679 if (h
< s
->vbe_regs
[VBE_DISPI_INDEX_YRES
])
681 s
->vbe_regs
[VBE_DISPI_INDEX_VIRT_WIDTH
] = w
;
682 s
->vbe_regs
[VBE_DISPI_INDEX_VIRT_HEIGHT
] = h
;
683 s
->vbe_line_offset
= line_offset
;
686 case VBE_DISPI_INDEX_X_OFFSET
:
687 case VBE_DISPI_INDEX_Y_OFFSET
:
690 s
->vbe_regs
[s
->vbe_index
] = val
;
691 s
->vbe_start_addr
= s
->vbe_line_offset
* s
->vbe_regs
[VBE_DISPI_INDEX_Y_OFFSET
];
692 x
= s
->vbe_regs
[VBE_DISPI_INDEX_X_OFFSET
];
693 if (s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] == 4)
694 s
->vbe_start_addr
+= x
>> 1;
696 s
->vbe_start_addr
+= x
* ((s
->vbe_regs
[VBE_DISPI_INDEX_BPP
] + 7) >> 3);
697 s
->vbe_start_addr
>>= 2;
707 /* called for accesses between 0xa0000 and 0xc0000 */
708 uint32_t vga_mem_readb(void *opaque
, target_phys_addr_t addr
)
710 VGAState
*s
= opaque
;
711 int memory_map_mode
, plane
;
714 /* convert to VGA memory offset */
715 memory_map_mode
= (s
->gr
[6] >> 2) & 3;
717 switch(memory_map_mode
) {
723 addr
+= s
->bank_offset
;
738 if (s
->sr
[4] & 0x08) {
739 /* chain 4 mode : simplest access */
740 ret
= s
->vram_ptr
[addr
];
741 } else if (s
->gr
[5] & 0x10) {
742 /* odd/even mode (aka text mode mapping) */
743 plane
= (s
->gr
[4] & 2) | (addr
& 1);
744 ret
= s
->vram_ptr
[((addr
& ~1) << 1) | plane
];
746 /* standard VGA latched access */
747 s
->latch
= ((uint32_t *)s
->vram_ptr
)[addr
];
749 if (!(s
->gr
[5] & 0x08)) {
752 ret
= GET_PLANE(s
->latch
, plane
);
755 ret
= (s
->latch
^ mask16
[s
->gr
[2]]) & mask16
[s
->gr
[7]];
764 static uint32_t vga_mem_readw(void *opaque
, target_phys_addr_t addr
)
767 #ifdef TARGET_WORDS_BIGENDIAN
768 v
= vga_mem_readb(opaque
, addr
) << 8;
769 v
|= vga_mem_readb(opaque
, addr
+ 1);
771 v
= vga_mem_readb(opaque
, addr
);
772 v
|= vga_mem_readb(opaque
, addr
+ 1) << 8;
777 static uint32_t vga_mem_readl(void *opaque
, target_phys_addr_t addr
)
780 #ifdef TARGET_WORDS_BIGENDIAN
781 v
= vga_mem_readb(opaque
, addr
) << 24;
782 v
|= vga_mem_readb(opaque
, addr
+ 1) << 16;
783 v
|= vga_mem_readb(opaque
, addr
+ 2) << 8;
784 v
|= vga_mem_readb(opaque
, addr
+ 3);
786 v
= vga_mem_readb(opaque
, addr
);
787 v
|= vga_mem_readb(opaque
, addr
+ 1) << 8;
788 v
|= vga_mem_readb(opaque
, addr
+ 2) << 16;
789 v
|= vga_mem_readb(opaque
, addr
+ 3) << 24;
794 /* called for accesses between 0xa0000 and 0xc0000 */
795 void vga_mem_writeb(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
797 VGAState
*s
= opaque
;
798 int memory_map_mode
, plane
, write_mode
, b
, func_select
, mask
;
799 uint32_t write_mask
, bit_mask
, set_mask
;
802 printf("vga: [0x%x] = 0x%02x\n", addr
, val
);
804 /* convert to VGA memory offset */
805 memory_map_mode
= (s
->gr
[6] >> 2) & 3;
807 switch(memory_map_mode
) {
813 addr
+= s
->bank_offset
;
828 if (s
->sr
[4] & 0x08) {
829 /* chain 4 mode : simplest access */
832 if (s
->sr
[2] & mask
) {
833 s
->vram_ptr
[addr
] = val
;
835 printf("vga: chain4: [0x%x]\n", addr
);
837 s
->plane_updated
|= mask
; /* only used to detect font change */
838 cpu_physical_memory_set_dirty(s
->vram_offset
+ addr
);
840 } else if (s
->gr
[5] & 0x10) {
841 /* odd/even mode (aka text mode mapping) */
842 plane
= (s
->gr
[4] & 2) | (addr
& 1);
844 if (s
->sr
[2] & mask
) {
845 addr
= ((addr
& ~1) << 1) | plane
;
846 s
->vram_ptr
[addr
] = val
;
848 printf("vga: odd/even: [0x%x]\n", addr
);
850 s
->plane_updated
|= mask
; /* only used to detect font change */
851 cpu_physical_memory_set_dirty(s
->vram_offset
+ addr
);
854 /* standard VGA latched access */
855 write_mode
= s
->gr
[5] & 3;
861 val
= ((val
>> b
) | (val
<< (8 - b
))) & 0xff;
865 /* apply set/reset mask */
866 set_mask
= mask16
[s
->gr
[1]];
867 val
= (val
& ~set_mask
) | (mask16
[s
->gr
[0]] & set_mask
);
874 val
= mask16
[val
& 0x0f];
880 val
= (val
>> b
) | (val
<< (8 - b
));
882 bit_mask
= s
->gr
[8] & val
;
883 val
= mask16
[s
->gr
[0]];
887 /* apply logical operation */
888 func_select
= s
->gr
[3] >> 3;
889 switch(func_select
) {
909 bit_mask
|= bit_mask
<< 8;
910 bit_mask
|= bit_mask
<< 16;
911 val
= (val
& bit_mask
) | (s
->latch
& ~bit_mask
);
914 /* mask data according to sr[2] */
916 s
->plane_updated
|= mask
; /* only used to detect font change */
917 write_mask
= mask16
[mask
];
918 ((uint32_t *)s
->vram_ptr
)[addr
] =
919 (((uint32_t *)s
->vram_ptr
)[addr
] & ~write_mask
) |
922 printf("vga: latch: [0x%x] mask=0x%08x val=0x%08x\n",
923 addr
* 4, write_mask
, val
);
925 cpu_physical_memory_set_dirty(s
->vram_offset
+ (addr
<< 2));
929 static void vga_mem_writew(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
931 #ifdef TARGET_WORDS_BIGENDIAN
932 vga_mem_writeb(opaque
, addr
, (val
>> 8) & 0xff);
933 vga_mem_writeb(opaque
, addr
+ 1, val
& 0xff);
935 vga_mem_writeb(opaque
, addr
, val
& 0xff);
936 vga_mem_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
940 static void vga_mem_writel(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
942 #ifdef TARGET_WORDS_BIGENDIAN
943 vga_mem_writeb(opaque
, addr
, (val
>> 24) & 0xff);
944 vga_mem_writeb(opaque
, addr
+ 1, (val
>> 16) & 0xff);
945 vga_mem_writeb(opaque
, addr
+ 2, (val
>> 8) & 0xff);
946 vga_mem_writeb(opaque
, addr
+ 3, val
& 0xff);
948 vga_mem_writeb(opaque
, addr
, val
& 0xff);
949 vga_mem_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
950 vga_mem_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
951 vga_mem_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
955 typedef void vga_draw_glyph8_func(uint8_t *d
, int linesize
,
956 const uint8_t *font_ptr
, int h
,
957 uint32_t fgcol
, uint32_t bgcol
);
958 typedef void vga_draw_glyph9_func(uint8_t *d
, int linesize
,
959 const uint8_t *font_ptr
, int h
,
960 uint32_t fgcol
, uint32_t bgcol
, int dup9
);
961 typedef void vga_draw_line_func(VGAState
*s1
, uint8_t *d
,
962 const uint8_t *s
, int width
);
965 #include "vga_template.h"
968 #include "vga_template.h"
972 #include "vga_template.h"
975 #include "vga_template.h"
979 #include "vga_template.h"
982 #include "vga_template.h"
986 #include "vga_template.h"
988 static unsigned int rgb_to_pixel8_dup(unsigned int r
, unsigned int g
, unsigned b
)
991 col
= rgb_to_pixel8(r
, g
, b
);
997 static unsigned int rgb_to_pixel15_dup(unsigned int r
, unsigned int g
, unsigned b
)
1000 col
= rgb_to_pixel15(r
, g
, b
);
1005 static unsigned int rgb_to_pixel15bgr_dup(unsigned int r
, unsigned int g
,
1009 col
= rgb_to_pixel15bgr(r
, g
, b
);
1014 static unsigned int rgb_to_pixel16_dup(unsigned int r
, unsigned int g
, unsigned b
)
1017 col
= rgb_to_pixel16(r
, g
, b
);
1022 static unsigned int rgb_to_pixel16bgr_dup(unsigned int r
, unsigned int g
,
1026 col
= rgb_to_pixel16bgr(r
, g
, b
);
1031 static unsigned int rgb_to_pixel32_dup(unsigned int r
, unsigned int g
, unsigned b
)
1034 col
= rgb_to_pixel32(r
, g
, b
);
1038 static unsigned int rgb_to_pixel32bgr_dup(unsigned int r
, unsigned int g
, unsigned b
)
1041 col
= rgb_to_pixel32bgr(r
, g
, b
);
1045 /* return true if the palette was modified */
1046 static int update_palette16(VGAState
*s
)
1049 uint32_t v
, col
, *palette
;
1052 palette
= s
->last_palette
;
1053 for(i
= 0; i
< 16; i
++) {
1055 if (s
->ar
[0x10] & 0x80)
1056 v
= ((s
->ar
[0x14] & 0xf) << 4) | (v
& 0xf);
1058 v
= ((s
->ar
[0x14] & 0xc) << 4) | (v
& 0x3f);
1060 col
= s
->rgb_to_pixel(c6_to_8(s
->palette
[v
]),
1061 c6_to_8(s
->palette
[v
+ 1]),
1062 c6_to_8(s
->palette
[v
+ 2]));
1063 if (col
!= palette
[i
]) {
1071 /* return true if the palette was modified */
1072 static int update_palette256(VGAState
*s
)
1075 uint32_t v
, col
, *palette
;
1078 palette
= s
->last_palette
;
1080 for(i
= 0; i
< 256; i
++) {
1082 col
= s
->rgb_to_pixel(s
->palette
[v
],
1086 col
= s
->rgb_to_pixel(c6_to_8(s
->palette
[v
]),
1087 c6_to_8(s
->palette
[v
+ 1]),
1088 c6_to_8(s
->palette
[v
+ 2]));
1090 if (col
!= palette
[i
]) {
1099 static void vga_get_offsets(VGAState
*s
,
1100 uint32_t *pline_offset
,
1101 uint32_t *pstart_addr
,
1102 uint32_t *pline_compare
)
1104 uint32_t start_addr
, line_offset
, line_compare
;
1105 #ifdef CONFIG_BOCHS_VBE
1106 if (s
->vbe_regs
[VBE_DISPI_INDEX_ENABLE
] & VBE_DISPI_ENABLED
) {
1107 line_offset
= s
->vbe_line_offset
;
1108 start_addr
= s
->vbe_start_addr
;
1109 line_compare
= 65535;
1113 /* compute line_offset in bytes */
1114 line_offset
= s
->cr
[0x13];
1117 /* starting address */
1118 start_addr
= s
->cr
[0x0d] | (s
->cr
[0x0c] << 8);
1121 line_compare
= s
->cr
[0x18] |
1122 ((s
->cr
[0x07] & 0x10) << 4) |
1123 ((s
->cr
[0x09] & 0x40) << 3);
1125 *pline_offset
= line_offset
;
1126 *pstart_addr
= start_addr
;
1127 *pline_compare
= line_compare
;
1130 /* update start_addr and line_offset. Return TRUE if modified */
1131 static int update_basic_params(VGAState
*s
)
1134 uint32_t start_addr
, line_offset
, line_compare
;
1138 s
->get_offsets(s
, &line_offset
, &start_addr
, &line_compare
);
1140 if (line_offset
!= s
->line_offset
||
1141 start_addr
!= s
->start_addr
||
1142 line_compare
!= s
->line_compare
) {
1143 s
->line_offset
= line_offset
;
1144 s
->start_addr
= start_addr
;
1145 s
->line_compare
= line_compare
;
1153 static inline int get_depth_index(DisplayState
*s
)
1155 switch(ds_get_bits_per_pixel(s
)) {
1164 if (is_surface_bgr(s
->surface
))
1171 static vga_draw_glyph8_func
*vga_draw_glyph8_table
[NB_DEPTHS
] = {
1181 static vga_draw_glyph8_func
*vga_draw_glyph16_table
[NB_DEPTHS
] = {
1183 vga_draw_glyph16_16
,
1184 vga_draw_glyph16_16
,
1185 vga_draw_glyph16_32
,
1186 vga_draw_glyph16_32
,
1187 vga_draw_glyph16_16
,
1188 vga_draw_glyph16_16
,
1191 static vga_draw_glyph9_func
*vga_draw_glyph9_table
[NB_DEPTHS
] = {
1201 static const uint8_t cursor_glyph
[32 * 4] = {
1202 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1203 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1204 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1205 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1206 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1207 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1208 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1209 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1210 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1211 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1212 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1213 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1214 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1215 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1216 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1217 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1220 static void vga_get_text_resolution(VGAState
*s
, int *pwidth
, int *pheight
,
1221 int *pcwidth
, int *pcheight
)
1223 int width
, cwidth
, height
, cheight
;
1225 /* total width & height */
1226 cheight
= (s
->cr
[9] & 0x1f) + 1;
1228 if (!(s
->sr
[1] & 0x01))
1230 if (s
->sr
[1] & 0x08)
1231 cwidth
= 16; /* NOTE: no 18 pixel wide */
1232 width
= (s
->cr
[0x01] + 1);
1233 if (s
->cr
[0x06] == 100) {
1234 /* ugly hack for CGA 160x100x16 - explain me the logic */
1237 height
= s
->cr
[0x12] |
1238 ((s
->cr
[0x07] & 0x02) << 7) |
1239 ((s
->cr
[0x07] & 0x40) << 3);
1240 height
= (height
+ 1) / cheight
;
1246 *pcheight
= cheight
;
1249 typedef unsigned int rgb_to_pixel_dup_func(unsigned int r
, unsigned int g
, unsigned b
);
1251 static rgb_to_pixel_dup_func
*rgb_to_pixel_dup_table
[NB_DEPTHS
] = {
1256 rgb_to_pixel32bgr_dup
,
1257 rgb_to_pixel15bgr_dup
,
1258 rgb_to_pixel16bgr_dup
,
1269 static void vga_draw_text(VGAState
*s
, int full_update
)
1271 int cx
, cy
, cheight
, cw
, ch
, cattr
, height
, width
, ch_attr
;
1272 int cx_min
, cx_max
, linesize
, x_incr
;
1273 uint32_t offset
, fgcol
, bgcol
, v
, cursor_offset
;
1274 uint8_t *d1
, *d
, *src
, *s1
, *dest
, *cursor_ptr
;
1275 const uint8_t *font_ptr
, *font_base
[2];
1276 int dup9
, line_offset
, depth_index
;
1278 uint32_t *ch_attr_ptr
;
1279 vga_draw_glyph8_func
*vga_draw_glyph8
;
1280 vga_draw_glyph9_func
*vga_draw_glyph9
;
1282 /* compute font data address (in plane 2) */
1284 offset
= (((v
>> 4) & 1) | ((v
<< 1) & 6)) * 8192 * 4 + 2;
1285 if (offset
!= s
->font_offsets
[0]) {
1286 s
->font_offsets
[0] = offset
;
1289 font_base
[0] = s
->vram_ptr
+ offset
;
1291 offset
= (((v
>> 5) & 1) | ((v
>> 1) & 6)) * 8192 * 4 + 2;
1292 font_base
[1] = s
->vram_ptr
+ offset
;
1293 if (offset
!= s
->font_offsets
[1]) {
1294 s
->font_offsets
[1] = offset
;
1297 if (s
->plane_updated
& (1 << 2)) {
1298 /* if the plane 2 was modified since the last display, it
1299 indicates the font may have been modified */
1300 s
->plane_updated
= 0;
1303 full_update
|= update_basic_params(s
);
1305 line_offset
= s
->line_offset
;
1306 s1
= s
->vram_ptr
+ (s
->start_addr
* 4);
1308 vga_get_text_resolution(s
, &width
, &height
, &cw
, &cheight
);
1309 x_incr
= cw
* ((ds_get_bits_per_pixel(s
->ds
) + 7) >> 3);
1310 if ((height
* width
) > CH_ATTR_SIZE
) {
1311 /* better than nothing: exit if transient size is too big */
1315 if (width
!= s
->last_width
|| height
!= s
->last_height
||
1316 cw
!= s
->last_cw
|| cheight
!= s
->last_ch
|| s
->last_depth
) {
1317 s
->last_scr_width
= width
* cw
;
1318 s
->last_scr_height
= height
* cheight
;
1319 qemu_console_resize(s
->ds
, s
->last_scr_width
, s
->last_scr_height
);
1321 s
->last_width
= width
;
1322 s
->last_height
= height
;
1323 s
->last_ch
= cheight
;
1328 rgb_to_pixel_dup_table
[get_depth_index(s
->ds
)];
1329 full_update
|= update_palette16(s
);
1330 palette
= s
->last_palette
;
1331 x_incr
= cw
* ((ds_get_bits_per_pixel(s
->ds
) + 7) >> 3);
1333 cursor_offset
= ((s
->cr
[0x0e] << 8) | s
->cr
[0x0f]) - s
->start_addr
;
1334 if (cursor_offset
!= s
->cursor_offset
||
1335 s
->cr
[0xa] != s
->cursor_start
||
1336 s
->cr
[0xb] != s
->cursor_end
) {
1337 /* if the cursor position changed, we update the old and new
1339 if (s
->cursor_offset
< CH_ATTR_SIZE
)
1340 s
->last_ch_attr
[s
->cursor_offset
] = -1;
1341 if (cursor_offset
< CH_ATTR_SIZE
)
1342 s
->last_ch_attr
[cursor_offset
] = -1;
1343 s
->cursor_offset
= cursor_offset
;
1344 s
->cursor_start
= s
->cr
[0xa];
1345 s
->cursor_end
= s
->cr
[0xb];
1347 cursor_ptr
= s
->vram_ptr
+ (s
->start_addr
+ cursor_offset
) * 4;
1349 depth_index
= get_depth_index(s
->ds
);
1351 vga_draw_glyph8
= vga_draw_glyph16_table
[depth_index
];
1353 vga_draw_glyph8
= vga_draw_glyph8_table
[depth_index
];
1354 vga_draw_glyph9
= vga_draw_glyph9_table
[depth_index
];
1356 dest
= ds_get_data(s
->ds
);
1357 linesize
= ds_get_linesize(s
->ds
);
1358 ch_attr_ptr
= s
->last_ch_attr
;
1359 for(cy
= 0; cy
< height
; cy
++) {
1364 for(cx
= 0; cx
< width
; cx
++) {
1365 ch_attr
= *(uint16_t *)src
;
1366 if (full_update
|| ch_attr
!= *ch_attr_ptr
) {
1371 *ch_attr_ptr
= ch_attr
;
1372 #ifdef WORDS_BIGENDIAN
1374 cattr
= ch_attr
& 0xff;
1376 ch
= ch_attr
& 0xff;
1377 cattr
= ch_attr
>> 8;
1379 font_ptr
= font_base
[(cattr
>> 3) & 1];
1380 font_ptr
+= 32 * 4 * ch
;
1381 bgcol
= palette
[cattr
>> 4];
1382 fgcol
= palette
[cattr
& 0x0f];
1384 vga_draw_glyph8(d1
, linesize
,
1385 font_ptr
, cheight
, fgcol
, bgcol
);
1388 if (ch
>= 0xb0 && ch
<= 0xdf && (s
->ar
[0x10] & 0x04))
1390 vga_draw_glyph9(d1
, linesize
,
1391 font_ptr
, cheight
, fgcol
, bgcol
, dup9
);
1393 if (src
== cursor_ptr
&&
1394 !(s
->cr
[0x0a] & 0x20)) {
1395 int line_start
, line_last
, h
;
1396 /* draw the cursor */
1397 line_start
= s
->cr
[0x0a] & 0x1f;
1398 line_last
= s
->cr
[0x0b] & 0x1f;
1399 /* XXX: check that */
1400 if (line_last
> cheight
- 1)
1401 line_last
= cheight
- 1;
1402 if (line_last
>= line_start
&& line_start
< cheight
) {
1403 h
= line_last
- line_start
+ 1;
1404 d
= d1
+ linesize
* line_start
;
1406 vga_draw_glyph8(d
, linesize
,
1407 cursor_glyph
, h
, fgcol
, bgcol
);
1409 vga_draw_glyph9(d
, linesize
,
1410 cursor_glyph
, h
, fgcol
, bgcol
, 1);
1420 dpy_update(s
->ds
, cx_min
* cw
, cy
* cheight
,
1421 (cx_max
- cx_min
+ 1) * cw
, cheight
);
1423 dest
+= linesize
* cheight
;
1442 static vga_draw_line_func
*vga_draw_line_table
[NB_DEPTHS
* VGA_DRAW_LINE_NB
] = {
1452 vga_draw_line2d2_16
,
1453 vga_draw_line2d2_16
,
1454 vga_draw_line2d2_32
,
1455 vga_draw_line2d2_32
,
1456 vga_draw_line2d2_16
,
1457 vga_draw_line2d2_16
,
1468 vga_draw_line4d2_16
,
1469 vga_draw_line4d2_16
,
1470 vga_draw_line4d2_32
,
1471 vga_draw_line4d2_32
,
1472 vga_draw_line4d2_16
,
1473 vga_draw_line4d2_16
,
1476 vga_draw_line8d2_16
,
1477 vga_draw_line8d2_16
,
1478 vga_draw_line8d2_32
,
1479 vga_draw_line8d2_32
,
1480 vga_draw_line8d2_16
,
1481 vga_draw_line8d2_16
,
1495 vga_draw_line15_32bgr
,
1496 vga_draw_line15_15bgr
,
1497 vga_draw_line15_16bgr
,
1503 vga_draw_line16_32bgr
,
1504 vga_draw_line16_15bgr
,
1505 vga_draw_line16_16bgr
,
1511 vga_draw_line24_32bgr
,
1512 vga_draw_line24_15bgr
,
1513 vga_draw_line24_16bgr
,
1519 vga_draw_line32_32bgr
,
1520 vga_draw_line32_15bgr
,
1521 vga_draw_line32_16bgr
,
1524 static int vga_get_bpp(VGAState
*s
)
1527 #ifdef CONFIG_BOCHS_VBE
1528 if (s
->vbe_regs
[VBE_DISPI_INDEX_ENABLE
] & VBE_DISPI_ENABLED
) {
1529 ret
= s
->vbe_regs
[VBE_DISPI_INDEX_BPP
];
1538 static void vga_get_resolution(VGAState
*s
, int *pwidth
, int *pheight
)
1542 #ifdef CONFIG_BOCHS_VBE
1543 if (s
->vbe_regs
[VBE_DISPI_INDEX_ENABLE
] & VBE_DISPI_ENABLED
) {
1544 width
= s
->vbe_regs
[VBE_DISPI_INDEX_XRES
];
1545 height
= s
->vbe_regs
[VBE_DISPI_INDEX_YRES
];
1549 width
= (s
->cr
[0x01] + 1) * 8;
1550 height
= s
->cr
[0x12] |
1551 ((s
->cr
[0x07] & 0x02) << 7) |
1552 ((s
->cr
[0x07] & 0x40) << 3);
1553 height
= (height
+ 1);
1559 void vga_invalidate_scanlines(VGAState
*s
, int y1
, int y2
)
1562 if (y1
>= VGA_MAX_HEIGHT
)
1564 if (y2
>= VGA_MAX_HEIGHT
)
1565 y2
= VGA_MAX_HEIGHT
;
1566 for(y
= y1
; y
< y2
; y
++) {
1567 s
->invalidated_y_table
[y
>> 5] |= 1 << (y
& 0x1f);
1571 static void vga_sync_dirty_bitmap(VGAState
*s
)
1574 cpu_physical_sync_dirty_bitmap(s
->map_addr
, s
->map_end
);
1576 if (s
->lfb_vram_mapped
) {
1577 cpu_physical_sync_dirty_bitmap(isa_mem_base
+ 0xa0000, 0xa8000);
1578 cpu_physical_sync_dirty_bitmap(isa_mem_base
+ 0xa8000, 0xb0000);
1585 static void vga_draw_graphic(VGAState
*s
, int full_update
)
1587 int y1
, y
, update
, linesize
, y_start
, double_scan
, mask
, depth
;
1588 int width
, height
, shift_control
, line_offset
, bwidth
, bits
;
1589 ram_addr_t page0
, page1
, page_min
, page_max
;
1590 int disp_width
, multi_scan
, multi_run
;
1592 uint32_t v
, addr1
, addr
;
1593 vga_draw_line_func
*vga_draw_line
;
1595 full_update
|= update_basic_params(s
);
1598 vga_sync_dirty_bitmap(s
);
1600 s
->get_resolution(s
, &width
, &height
);
1603 shift_control
= (s
->gr
[0x05] >> 5) & 3;
1604 double_scan
= (s
->cr
[0x09] >> 7);
1605 if (shift_control
!= 1) {
1606 multi_scan
= (((s
->cr
[0x09] & 0x1f) + 1) << double_scan
) - 1;
1608 /* in CGA modes, multi_scan is ignored */
1609 /* XXX: is it correct ? */
1610 multi_scan
= double_scan
;
1612 multi_run
= multi_scan
;
1613 if (shift_control
!= s
->shift_control
||
1614 double_scan
!= s
->double_scan
) {
1616 s
->shift_control
= shift_control
;
1617 s
->double_scan
= double_scan
;
1620 if (shift_control
== 0) {
1621 if (s
->sr
[0x01] & 8) {
1624 } else if (shift_control
== 1) {
1625 if (s
->sr
[0x01] & 8) {
1630 depth
= s
->get_bpp(s
);
1631 if (s
->line_offset
!= s
->last_line_offset
||
1632 disp_width
!= s
->last_width
||
1633 height
!= s
->last_height
||
1634 s
->last_depth
!= depth
) {
1635 #if defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
1636 if (depth
== 16 || depth
== 32) {
1640 qemu_free_displaysurface(s
->ds
);
1641 s
->ds
->surface
= qemu_create_displaysurface_from(disp_width
, height
, depth
,
1643 s
->vram_ptr
+ (s
->start_addr
* 4));
1644 #if defined(WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
1645 s
->ds
->surface
->pf
= qemu_different_endianness_pixelformat(depth
);
1649 qemu_console_resize(s
->ds
, disp_width
, height
);
1651 s
->last_scr_width
= disp_width
;
1652 s
->last_scr_height
= height
;
1653 s
->last_width
= disp_width
;
1654 s
->last_height
= height
;
1655 s
->last_line_offset
= s
->line_offset
;
1656 s
->last_depth
= depth
;
1658 } else if (is_buffer_shared(s
->ds
->surface
) &&
1659 (full_update
|| s
->ds
->surface
->data
!= s
->vram_ptr
+ (s
->start_addr
* 4))) {
1660 s
->ds
->surface
->data
= s
->vram_ptr
+ (s
->start_addr
* 4);
1665 rgb_to_pixel_dup_table
[get_depth_index(s
->ds
)];
1667 if (shift_control
== 0) {
1668 full_update
|= update_palette16(s
);
1669 if (s
->sr
[0x01] & 8) {
1670 v
= VGA_DRAW_LINE4D2
;
1675 } else if (shift_control
== 1) {
1676 full_update
|= update_palette16(s
);
1677 if (s
->sr
[0x01] & 8) {
1678 v
= VGA_DRAW_LINE2D2
;
1684 switch(s
->get_bpp(s
)) {
1687 full_update
|= update_palette256(s
);
1688 v
= VGA_DRAW_LINE8D2
;
1692 full_update
|= update_palette256(s
);
1697 v
= VGA_DRAW_LINE15
;
1701 v
= VGA_DRAW_LINE16
;
1705 v
= VGA_DRAW_LINE24
;
1709 v
= VGA_DRAW_LINE32
;
1714 vga_draw_line
= vga_draw_line_table
[v
* NB_DEPTHS
+ get_depth_index(s
->ds
)];
1716 if (!is_buffer_shared(s
->ds
->surface
) && s
->cursor_invalidate
)
1717 s
->cursor_invalidate(s
);
1719 line_offset
= s
->line_offset
;
1721 printf("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n",
1722 width
, height
, v
, line_offset
, s
->cr
[9], s
->cr
[0x17], s
->line_compare
, s
->sr
[0x01]);
1724 addr1
= (s
->start_addr
* 4);
1725 bwidth
= (width
* bits
+ 7) / 8;
1729 d
= ds_get_data(s
->ds
);
1730 linesize
= ds_get_linesize(s
->ds
);
1732 for(y
= 0; y
< height
; y
++) {
1734 if (!(s
->cr
[0x17] & 1)) {
1736 /* CGA compatibility handling */
1737 shift
= 14 + ((s
->cr
[0x17] >> 6) & 1);
1738 addr
= (addr
& ~(1 << shift
)) | ((y1
& 1) << shift
);
1740 if (!(s
->cr
[0x17] & 2)) {
1741 addr
= (addr
& ~0x8000) | ((y1
& 2) << 14);
1743 page0
= s
->vram_offset
+ (addr
& TARGET_PAGE_MASK
);
1744 page1
= s
->vram_offset
+ ((addr
+ bwidth
- 1) & TARGET_PAGE_MASK
);
1745 update
= full_update
|
1746 cpu_physical_memory_get_dirty(page0
, VGA_DIRTY_FLAG
) |
1747 cpu_physical_memory_get_dirty(page1
, VGA_DIRTY_FLAG
);
1748 if ((page1
- page0
) > TARGET_PAGE_SIZE
) {
1749 /* if wide line, can use another page */
1750 update
|= cpu_physical_memory_get_dirty(page0
+ TARGET_PAGE_SIZE
,
1753 /* explicit invalidation for the hardware cursor */
1754 update
|= (s
->invalidated_y_table
[y
>> 5] >> (y
& 0x1f)) & 1;
1758 if (page0
< page_min
)
1760 if (page1
> page_max
)
1762 if (!(is_buffer_shared(s
->ds
->surface
))) {
1763 vga_draw_line(s
, d
, s
->vram_ptr
+ addr
, width
);
1764 if (s
->cursor_draw_line
)
1765 s
->cursor_draw_line(s
, d
, y
);
1769 /* flush to display */
1770 dpy_update(s
->ds
, 0, y_start
,
1771 disp_width
, y
- y_start
);
1776 mask
= (s
->cr
[0x17] & 3) ^ 3;
1777 if ((y1
& mask
) == mask
)
1778 addr1
+= line_offset
;
1780 multi_run
= multi_scan
;
1784 /* line compare acts on the displayed lines */
1785 if (y
== s
->line_compare
)
1790 /* flush to display */
1791 dpy_update(s
->ds
, 0, y_start
,
1792 disp_width
, y
- y_start
);
1794 /* reset modified pages */
1795 if (page_max
>= page_min
) {
1796 cpu_physical_memory_reset_dirty(page_min
, page_max
+ TARGET_PAGE_SIZE
,
1799 memset(s
->invalidated_y_table
, 0, ((height
+ 31) >> 5) * 4);
1802 static void vga_draw_blank(VGAState
*s
, int full_update
)
1809 if (s
->last_scr_width
<= 0 || s
->last_scr_height
<= 0)
1813 rgb_to_pixel_dup_table
[get_depth_index(s
->ds
)];
1814 if (ds_get_bits_per_pixel(s
->ds
) == 8)
1815 val
= s
->rgb_to_pixel(0, 0, 0);
1818 w
= s
->last_scr_width
* ((ds_get_bits_per_pixel(s
->ds
) + 7) >> 3);
1819 d
= ds_get_data(s
->ds
);
1820 for(i
= 0; i
< s
->last_scr_height
; i
++) {
1822 d
+= ds_get_linesize(s
->ds
);
1824 dpy_update(s
->ds
, 0, 0,
1825 s
->last_scr_width
, s
->last_scr_height
);
1828 #define GMODE_TEXT 0
1829 #define GMODE_GRAPH 1
1830 #define GMODE_BLANK 2
1832 static void vga_update_display(void *opaque
)
1834 VGAState
*s
= (VGAState
*)opaque
;
1835 int full_update
, graphic_mode
;
1837 if (ds_get_bits_per_pixel(s
->ds
) == 0) {
1841 if (!(s
->ar_index
& 0x20)) {
1842 graphic_mode
= GMODE_BLANK
;
1844 graphic_mode
= s
->gr
[6] & 1;
1846 if (graphic_mode
!= s
->graphic_mode
) {
1847 s
->graphic_mode
= graphic_mode
;
1850 switch(graphic_mode
) {
1852 vga_draw_text(s
, full_update
);
1855 vga_draw_graphic(s
, full_update
);
1859 vga_draw_blank(s
, full_update
);
1865 /* force a full display refresh */
1866 static void vga_invalidate_display(void *opaque
)
1868 VGAState
*s
= (VGAState
*)opaque
;
1871 s
->last_height
= -1;
1874 void vga_reset(void *opaque
)
1876 VGAState
*s
= (VGAState
*) opaque
;
1882 s
->lfb_vram_mapped
= 0;
1886 memset(s
->sr
, '\0', sizeof(s
->sr
));
1888 memset(s
->gr
, '\0', sizeof(s
->gr
));
1890 memset(s
->ar
, '\0', sizeof(s
->ar
));
1891 s
->ar_flip_flop
= 0;
1893 memset(s
->cr
, '\0', sizeof(s
->cr
));
1899 s
->dac_sub_index
= 0;
1900 s
->dac_read_index
= 0;
1901 s
->dac_write_index
= 0;
1902 memset(s
->dac_cache
, '\0', sizeof(s
->dac_cache
));
1904 memset(s
->palette
, '\0', sizeof(s
->palette
));
1906 #ifdef CONFIG_BOCHS_VBE
1908 memset(s
->vbe_regs
, '\0', sizeof(s
->vbe_regs
));
1909 s
->vbe_regs
[VBE_DISPI_INDEX_ID
] = VBE_DISPI_ID0
;
1910 s
->vbe_start_addr
= 0;
1911 s
->vbe_line_offset
= 0;
1912 s
->vbe_bank_mask
= (s
->vram_size
>> 16) - 1;
1914 memset(s
->font_offsets
, '\0', sizeof(s
->font_offsets
));
1915 s
->graphic_mode
= -1; /* force full update */
1916 s
->shift_control
= 0;
1919 s
->line_compare
= 0;
1921 s
->plane_updated
= 0;
1926 s
->last_scr_width
= 0;
1927 s
->last_scr_height
= 0;
1928 s
->cursor_start
= 0;
1930 s
->cursor_offset
= 0;
1931 memset(s
->invalidated_y_table
, '\0', sizeof(s
->invalidated_y_table
));
1932 memset(s
->last_palette
, '\0', sizeof(s
->last_palette
));
1933 memset(s
->last_ch_attr
, '\0', sizeof(s
->last_ch_attr
));
1934 switch (vga_retrace_method
) {
1935 case VGA_RETRACE_DUMB
:
1937 case VGA_RETRACE_PRECISE
:
1938 memset(&s
->retrace_info
, 0, sizeof (s
->retrace_info
));
1943 #define TEXTMODE_X(x) ((x) % width)
1944 #define TEXTMODE_Y(x) ((x) / width)
1945 #define VMEM2CHTYPE(v) ((v & 0xff0007ff) | \
1946 ((v & 0x00000800) << 10) | ((v & 0x00007000) >> 1))
1947 /* relay text rendering to the display driver
1948 * instead of doing a full vga_update_display() */
1949 static void vga_update_text(void *opaque
, console_ch_t
*chardata
)
1951 VGAState
*s
= (VGAState
*) opaque
;
1952 int graphic_mode
, i
, cursor_offset
, cursor_visible
;
1953 int cw
, cheight
, width
, height
, size
, c_min
, c_max
;
1955 console_ch_t
*dst
, val
;
1956 char msg_buffer
[80];
1957 int full_update
= 0;
1959 if (!(s
->ar_index
& 0x20)) {
1960 graphic_mode
= GMODE_BLANK
;
1962 graphic_mode
= s
->gr
[6] & 1;
1964 if (graphic_mode
!= s
->graphic_mode
) {
1965 s
->graphic_mode
= graphic_mode
;
1968 if (s
->last_width
== -1) {
1973 switch (graphic_mode
) {
1975 /* TODO: update palette */
1976 full_update
|= update_basic_params(s
);
1978 /* total width & height */
1979 cheight
= (s
->cr
[9] & 0x1f) + 1;
1981 if (!(s
->sr
[1] & 0x01))
1983 if (s
->sr
[1] & 0x08)
1984 cw
= 16; /* NOTE: no 18 pixel wide */
1985 width
= (s
->cr
[0x01] + 1);
1986 if (s
->cr
[0x06] == 100) {
1987 /* ugly hack for CGA 160x100x16 - explain me the logic */
1990 height
= s
->cr
[0x12] |
1991 ((s
->cr
[0x07] & 0x02) << 7) |
1992 ((s
->cr
[0x07] & 0x40) << 3);
1993 height
= (height
+ 1) / cheight
;
1996 size
= (height
* width
);
1997 if (size
> CH_ATTR_SIZE
) {
2001 snprintf(msg_buffer
, sizeof(msg_buffer
), "%i x %i Text mode",
2006 if (width
!= s
->last_width
|| height
!= s
->last_height
||
2007 cw
!= s
->last_cw
|| cheight
!= s
->last_ch
) {
2008 s
->last_scr_width
= width
* cw
;
2009 s
->last_scr_height
= height
* cheight
;
2010 s
->ds
->surface
->width
= width
;
2011 s
->ds
->surface
->height
= height
;
2013 s
->last_width
= width
;
2014 s
->last_height
= height
;
2015 s
->last_ch
= cheight
;
2020 /* Update "hardware" cursor */
2021 cursor_offset
= ((s
->cr
[0x0e] << 8) | s
->cr
[0x0f]) - s
->start_addr
;
2022 if (cursor_offset
!= s
->cursor_offset
||
2023 s
->cr
[0xa] != s
->cursor_start
||
2024 s
->cr
[0xb] != s
->cursor_end
|| full_update
) {
2025 cursor_visible
= !(s
->cr
[0xa] & 0x20);
2026 if (cursor_visible
&& cursor_offset
< size
&& cursor_offset
>= 0)
2028 TEXTMODE_X(cursor_offset
),
2029 TEXTMODE_Y(cursor_offset
));
2031 dpy_cursor(s
->ds
, -1, -1);
2032 s
->cursor_offset
= cursor_offset
;
2033 s
->cursor_start
= s
->cr
[0xa];
2034 s
->cursor_end
= s
->cr
[0xb];
2037 src
= (uint32_t *) s
->vram_ptr
+ s
->start_addr
;
2041 for (i
= 0; i
< size
; src
++, dst
++, i
++)
2042 console_write_ch(dst
, VMEM2CHTYPE(*src
));
2044 dpy_update(s
->ds
, 0, 0, width
, height
);
2048 for (i
= 0; i
< size
; src
++, dst
++, i
++) {
2049 console_write_ch(&val
, VMEM2CHTYPE(*src
));
2057 for (; i
< size
; src
++, dst
++, i
++) {
2058 console_write_ch(&val
, VMEM2CHTYPE(*src
));
2065 if (c_min
<= c_max
) {
2066 i
= TEXTMODE_Y(c_min
);
2067 dpy_update(s
->ds
, 0, i
, width
, TEXTMODE_Y(c_max
) - i
+ 1);
2076 s
->get_resolution(s
, &width
, &height
);
2077 snprintf(msg_buffer
, sizeof(msg_buffer
), "%i x %i Graphic mode",
2085 snprintf(msg_buffer
, sizeof(msg_buffer
), "VGA Blank mode");
2089 /* Display a message */
2091 s
->last_height
= height
= 3;
2092 dpy_cursor(s
->ds
, -1, -1);
2093 s
->ds
->surface
->width
= s
->last_width
;
2094 s
->ds
->surface
->height
= height
;
2097 for (dst
= chardata
, i
= 0; i
< s
->last_width
* height
; i
++)
2098 console_write_ch(dst
++, ' ');
2100 size
= strlen(msg_buffer
);
2101 width
= (s
->last_width
- size
) / 2;
2102 dst
= chardata
+ s
->last_width
+ width
;
2103 for (i
= 0; i
< size
; i
++)
2104 console_write_ch(dst
++, 0x00200100 | msg_buffer
[i
]);
2106 dpy_update(s
->ds
, 0, 0, s
->last_width
, height
);
2109 static CPUReadMemoryFunc
*vga_mem_read
[3] = {
2115 static CPUWriteMemoryFunc
*vga_mem_write
[3] = {
2121 static void vga_save(QEMUFile
*f
, void *opaque
)
2123 VGAState
*s
= opaque
;
2127 pci_device_save(s
->pci_dev
, f
);
2129 qemu_put_be32s(f
, &s
->latch
);
2130 qemu_put_8s(f
, &s
->sr_index
);
2131 qemu_put_buffer(f
, s
->sr
, 8);
2132 qemu_put_8s(f
, &s
->gr_index
);
2133 qemu_put_buffer(f
, s
->gr
, 16);
2134 qemu_put_8s(f
, &s
->ar_index
);
2135 qemu_put_buffer(f
, s
->ar
, 21);
2136 qemu_put_be32(f
, s
->ar_flip_flop
);
2137 qemu_put_8s(f
, &s
->cr_index
);
2138 qemu_put_buffer(f
, s
->cr
, 256);
2139 qemu_put_8s(f
, &s
->msr
);
2140 qemu_put_8s(f
, &s
->fcr
);
2141 qemu_put_byte(f
, s
->st00
);
2142 qemu_put_8s(f
, &s
->st01
);
2144 qemu_put_8s(f
, &s
->dac_state
);
2145 qemu_put_8s(f
, &s
->dac_sub_index
);
2146 qemu_put_8s(f
, &s
->dac_read_index
);
2147 qemu_put_8s(f
, &s
->dac_write_index
);
2148 qemu_put_buffer(f
, s
->dac_cache
, 3);
2149 qemu_put_buffer(f
, s
->palette
, 768);
2151 qemu_put_be32(f
, s
->bank_offset
);
2152 #ifdef CONFIG_BOCHS_VBE
2153 qemu_put_byte(f
, 1);
2154 qemu_put_be16s(f
, &s
->vbe_index
);
2155 for(i
= 0; i
< VBE_DISPI_INDEX_NB
; i
++)
2156 qemu_put_be16s(f
, &s
->vbe_regs
[i
]);
2157 qemu_put_be32s(f
, &s
->vbe_start_addr
);
2158 qemu_put_be32s(f
, &s
->vbe_line_offset
);
2159 qemu_put_be32s(f
, &s
->vbe_bank_mask
);
2161 qemu_put_byte(f
, 0);
2165 static int vga_load(QEMUFile
*f
, void *opaque
, int version_id
)
2167 VGAState
*s
= opaque
;
2173 if (s
->pci_dev
&& version_id
>= 2) {
2174 ret
= pci_device_load(s
->pci_dev
, f
);
2179 qemu_get_be32s(f
, &s
->latch
);
2180 qemu_get_8s(f
, &s
->sr_index
);
2181 qemu_get_buffer(f
, s
->sr
, 8);
2182 qemu_get_8s(f
, &s
->gr_index
);
2183 qemu_get_buffer(f
, s
->gr
, 16);
2184 qemu_get_8s(f
, &s
->ar_index
);
2185 qemu_get_buffer(f
, s
->ar
, 21);
2186 s
->ar_flip_flop
=qemu_get_be32(f
);
2187 qemu_get_8s(f
, &s
->cr_index
);
2188 qemu_get_buffer(f
, s
->cr
, 256);
2189 qemu_get_8s(f
, &s
->msr
);
2190 qemu_get_8s(f
, &s
->fcr
);
2191 qemu_get_8s(f
, &s
->st00
);
2192 qemu_get_8s(f
, &s
->st01
);
2194 qemu_get_8s(f
, &s
->dac_state
);
2195 qemu_get_8s(f
, &s
->dac_sub_index
);
2196 qemu_get_8s(f
, &s
->dac_read_index
);
2197 qemu_get_8s(f
, &s
->dac_write_index
);
2198 qemu_get_buffer(f
, s
->dac_cache
, 3);
2199 qemu_get_buffer(f
, s
->palette
, 768);
2201 s
->bank_offset
=qemu_get_be32(f
);
2202 is_vbe
= qemu_get_byte(f
);
2203 #ifdef CONFIG_BOCHS_VBE
2206 qemu_get_be16s(f
, &s
->vbe_index
);
2207 for(i
= 0; i
< VBE_DISPI_INDEX_NB
; i
++)
2208 qemu_get_be16s(f
, &s
->vbe_regs
[i
]);
2209 qemu_get_be32s(f
, &s
->vbe_start_addr
);
2210 qemu_get_be32s(f
, &s
->vbe_line_offset
);
2211 qemu_get_be32s(f
, &s
->vbe_bank_mask
);
2218 s
->graphic_mode
= -1;
2222 typedef struct PCIVGAState
{
2227 void vga_dirty_log_start(VGAState
*s
)
2229 if (kvm_enabled() && s
->map_addr
)
2230 kvm_log_start(s
->map_addr
, s
->map_end
- s
->map_addr
);
2232 if (kvm_enabled() && s
->lfb_vram_mapped
) {
2233 kvm_log_start(isa_mem_base
+ 0xa0000, 0x8000);
2234 kvm_log_start(isa_mem_base
+ 0xa8000, 0x8000);
2238 static void vga_map(PCIDevice
*pci_dev
, int region_num
,
2239 uint32_t addr
, uint32_t size
, int type
)
2241 PCIVGAState
*d
= (PCIVGAState
*)pci_dev
;
2242 VGAState
*s
= &d
->vga_state
;
2243 if (region_num
== PCI_ROM_SLOT
) {
2244 cpu_register_physical_memory(addr
, s
->bios_size
, s
->bios_offset
);
2246 cpu_register_physical_memory(addr
, s
->vram_size
, s
->vram_offset
);
2248 s
->map_end
= addr
+ s
->vram_size
;
2249 vga_dirty_log_start(s
);
2253 void vga_common_init(VGAState
*s
, int vga_ram_size
)
2257 for(i
= 0;i
< 256; i
++) {
2259 for(j
= 0; j
< 8; j
++) {
2260 v
|= ((i
>> j
) & 1) << (j
* 4);
2265 for(j
= 0; j
< 4; j
++) {
2266 v
|= ((i
>> (2 * j
)) & 3) << (j
* 4);
2270 for(i
= 0; i
< 16; i
++) {
2272 for(j
= 0; j
< 4; j
++) {
2275 v
|= b
<< (2 * j
+ 1);
2280 s
->vram_offset
= qemu_ram_alloc(vga_ram_size
);
2281 s
->vram_ptr
= qemu_get_ram_ptr(s
->vram_offset
);
2282 s
->vram_size
= vga_ram_size
;
2283 s
->get_bpp
= vga_get_bpp
;
2284 s
->get_offsets
= vga_get_offsets
;
2285 s
->get_resolution
= vga_get_resolution
;
2286 s
->update
= vga_update_display
;
2287 s
->invalidate
= vga_invalidate_display
;
2288 s
->screen_dump
= vga_screen_dump
;
2289 s
->text_update
= vga_update_text
;
2290 switch (vga_retrace_method
) {
2291 case VGA_RETRACE_DUMB
:
2292 s
->retrace
= vga_dumb_retrace
;
2293 s
->update_retrace_info
= vga_dumb_update_retrace_info
;
2296 case VGA_RETRACE_PRECISE
:
2297 s
->retrace
= vga_precise_retrace
;
2298 s
->update_retrace_info
= vga_precise_update_retrace_info
;
2304 /* used by both ISA and PCI */
2305 void vga_init(VGAState
*s
)
2309 qemu_register_reset(vga_reset
, 0, s
);
2310 register_savevm("vga", 0, 2, vga_save
, vga_load
, s
);
2312 register_ioport_write(0x3c0, 16, 1, vga_ioport_write
, s
);
2314 register_ioport_write(0x3b4, 2, 1, vga_ioport_write
, s
);
2315 register_ioport_write(0x3d4, 2, 1, vga_ioport_write
, s
);
2316 register_ioport_write(0x3ba, 1, 1, vga_ioport_write
, s
);
2317 register_ioport_write(0x3da, 1, 1, vga_ioport_write
, s
);
2319 register_ioport_read(0x3c0, 16, 1, vga_ioport_read
, s
);
2321 register_ioport_read(0x3b4, 2, 1, vga_ioport_read
, s
);
2322 register_ioport_read(0x3d4, 2, 1, vga_ioport_read
, s
);
2323 register_ioport_read(0x3ba, 1, 1, vga_ioport_read
, s
);
2324 register_ioport_read(0x3da, 1, 1, vga_ioport_read
, s
);
2327 #ifdef CONFIG_BOCHS_VBE
2328 #if defined (TARGET_I386)
2329 register_ioport_read(0x1ce, 1, 2, vbe_ioport_read_index
, s
);
2330 register_ioport_read(0x1cf, 1, 2, vbe_ioport_read_data
, s
);
2332 register_ioport_write(0x1ce, 1, 2, vbe_ioport_write_index
, s
);
2333 register_ioport_write(0x1cf, 1, 2, vbe_ioport_write_data
, s
);
2335 /* old Bochs IO ports */
2336 register_ioport_read(0xff80, 1, 2, vbe_ioport_read_index
, s
);
2337 register_ioport_read(0xff81, 1, 2, vbe_ioport_read_data
, s
);
2339 register_ioport_write(0xff80, 1, 2, vbe_ioport_write_index
, s
);
2340 register_ioport_write(0xff81, 1, 2, vbe_ioport_write_data
, s
);
2342 register_ioport_read(0x1ce, 1, 2, vbe_ioport_read_index
, s
);
2343 register_ioport_read(0x1d0, 1, 2, vbe_ioport_read_data
, s
);
2345 register_ioport_write(0x1ce, 1, 2, vbe_ioport_write_index
, s
);
2346 register_ioport_write(0x1d0, 1, 2, vbe_ioport_write_data
, s
);
2348 #endif /* CONFIG_BOCHS_VBE */
2350 vga_io_memory
= cpu_register_io_memory(vga_mem_read
, vga_mem_write
, s
);
2351 cpu_register_physical_memory(isa_mem_base
+ 0x000a0000, 0x20000,
2353 qemu_register_coalesced_mmio(isa_mem_base
+ 0x000a0000, 0x20000);
2356 /* Memory mapped interface */
2357 static uint32_t vga_mm_readb (void *opaque
, target_phys_addr_t addr
)
2359 VGAState
*s
= opaque
;
2361 return vga_ioport_read(s
, addr
>> s
->it_shift
) & 0xff;
2364 static void vga_mm_writeb (void *opaque
,
2365 target_phys_addr_t addr
, uint32_t value
)
2367 VGAState
*s
= opaque
;
2369 vga_ioport_write(s
, addr
>> s
->it_shift
, value
& 0xff);
2372 static uint32_t vga_mm_readw (void *opaque
, target_phys_addr_t addr
)
2374 VGAState
*s
= opaque
;
2376 return vga_ioport_read(s
, addr
>> s
->it_shift
) & 0xffff;
2379 static void vga_mm_writew (void *opaque
,
2380 target_phys_addr_t addr
, uint32_t value
)
2382 VGAState
*s
= opaque
;
2384 vga_ioport_write(s
, addr
>> s
->it_shift
, value
& 0xffff);
2387 static uint32_t vga_mm_readl (void *opaque
, target_phys_addr_t addr
)
2389 VGAState
*s
= opaque
;
2391 return vga_ioport_read(s
, addr
>> s
->it_shift
);
2394 static void vga_mm_writel (void *opaque
,
2395 target_phys_addr_t addr
, uint32_t value
)
2397 VGAState
*s
= opaque
;
2399 vga_ioport_write(s
, addr
>> s
->it_shift
, value
);
2402 static CPUReadMemoryFunc
*vga_mm_read_ctrl
[] = {
2408 static CPUWriteMemoryFunc
*vga_mm_write_ctrl
[] = {
2414 static void vga_mm_init(VGAState
*s
, target_phys_addr_t vram_base
,
2415 target_phys_addr_t ctrl_base
, int it_shift
)
2417 int s_ioport_ctrl
, vga_io_memory
;
2419 s
->it_shift
= it_shift
;
2420 s_ioport_ctrl
= cpu_register_io_memory(vga_mm_read_ctrl
, vga_mm_write_ctrl
, s
);
2421 vga_io_memory
= cpu_register_io_memory(vga_mem_read
, vga_mem_write
, s
);
2423 register_savevm("vga", 0, 2, vga_save
, vga_load
, s
);
2425 cpu_register_physical_memory(ctrl_base
, 0x100000, s_ioport_ctrl
);
2427 cpu_register_physical_memory(vram_base
+ 0x000a0000, 0x20000, vga_io_memory
);
2428 qemu_register_coalesced_mmio(vram_base
+ 0x000a0000, 0x20000);
2431 int isa_vga_init(void)
2435 s
= qemu_mallocz(sizeof(VGAState
));
2437 vga_common_init(s
, VGA_RAM_SIZE
);
2440 s
->ds
= graphic_console_init(s
->update
, s
->invalidate
,
2441 s
->screen_dump
, s
->text_update
, s
);
2443 #ifdef CONFIG_BOCHS_VBE
2444 /* XXX: use optimized standard vga accesses */
2445 cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS
,
2446 VGA_RAM_SIZE
, s
->vram_offset
);
2451 int isa_vga_mm_init(target_phys_addr_t vram_base
,
2452 target_phys_addr_t ctrl_base
, int it_shift
)
2456 s
= qemu_mallocz(sizeof(VGAState
));
2458 vga_common_init(s
, VGA_RAM_SIZE
);
2459 vga_mm_init(s
, vram_base
, ctrl_base
, it_shift
);
2461 s
->ds
= graphic_console_init(s
->update
, s
->invalidate
,
2462 s
->screen_dump
, s
->text_update
, s
);
2464 #ifdef CONFIG_BOCHS_VBE
2465 /* XXX: use optimized standard vga accesses */
2466 cpu_register_physical_memory(VBE_DISPI_LFB_PHYSICAL_ADDRESS
,
2467 VGA_RAM_SIZE
, s
->vram_offset
);
2472 static void pci_vga_write_config(PCIDevice
*d
,
2473 uint32_t address
, uint32_t val
, int len
)
2475 PCIVGAState
*pvs
= container_of(d
, PCIVGAState
, dev
);
2476 VGAState
*s
= &pvs
->vga_state
;
2478 pci_default_write_config(d
, address
, val
, len
);
2479 if (s
->map_addr
&& pvs
->dev
.io_regions
[0].addr
== -1)
2483 int pci_vga_init(PCIBus
*bus
,
2484 unsigned long vga_bios_offset
, int vga_bios_size
)
2490 d
= (PCIVGAState
*)pci_register_device(bus
, "VGA",
2491 sizeof(PCIVGAState
),
2492 -1, NULL
, pci_vga_write_config
);
2497 vga_common_init(s
, VGA_RAM_SIZE
);
2500 s
->ds
= graphic_console_init(s
->update
, s
->invalidate
,
2501 s
->screen_dump
, s
->text_update
, s
);
2503 s
->pci_dev
= &d
->dev
;
2505 pci_conf
= d
->dev
.config
;
2506 // dummy VGA (same as Bochs ID)
2507 pci_config_set_vendor_id(pci_conf
, PCI_VENDOR_ID_QEMU
);
2508 pci_config_set_device_id(pci_conf
, PCI_DEVICE_ID_QEMU_VGA
);
2509 pci_config_set_class(pci_conf
, PCI_CLASS_DISPLAY_VGA
);
2510 pci_conf
[PCI_HEADER_TYPE
] = PCI_HEADER_TYPE_NORMAL
; // header_type
2512 /* XXX: VGA_RAM_SIZE must be a power of two */
2513 pci_register_bar(&d
->dev
, 0, VGA_RAM_SIZE
,
2514 PCI_ADDRESS_SPACE_MEM_PREFETCH
, vga_map
);
2515 if (vga_bios_size
!= 0) {
2516 unsigned int bios_total_size
;
2517 s
->bios_offset
= vga_bios_offset
;
2518 s
->bios_size
= vga_bios_size
;
2519 /* must be a power of two */
2520 bios_total_size
= 1;
2521 while (bios_total_size
< vga_bios_size
)
2522 bios_total_size
<<= 1;
2523 pci_register_bar(&d
->dev
, PCI_ROM_SLOT
, bios_total_size
,
2524 PCI_ADDRESS_SPACE_MEM_PREFETCH
, vga_map
);
2529 /********************************************************/
2530 /* vga screen dump */
2532 static void vga_save_dpy_update(DisplayState
*s
,
2533 int x
, int y
, int w
, int h
)
2537 static void vga_save_dpy_resize(DisplayState
*s
)
2541 static void vga_save_dpy_refresh(DisplayState
*s
)
2545 int ppm_save(const char *filename
, struct DisplaySurface
*ds
)
2553 f
= fopen(filename
, "wb");
2556 fprintf(f
, "P6\n%d %d\n%d\n",
2557 ds
->width
, ds
->height
, 255);
2559 for(y
= 0; y
< ds
->height
; y
++) {
2561 for(x
= 0; x
< ds
->width
; x
++) {
2562 if (ds
->pf
.bits_per_pixel
== 32)
2565 v
= (uint32_t) (*(uint16_t *)d
);
2566 r
= ((v
>> ds
->pf
.rshift
) & ds
->pf
.rmax
) * 256 /
2568 g
= ((v
>> ds
->pf
.gshift
) & ds
->pf
.gmax
) * 256 /
2570 b
= ((v
>> ds
->pf
.bshift
) & ds
->pf
.bmax
) * 256 /
2575 d
+= ds
->pf
.bytes_per_pixel
;
2583 static void vga_screen_dump_blank(VGAState
*s
, const char *filename
)
2586 unsigned int y
, x
, w
, h
;
2588 w
= s
->last_scr_width
* sizeof(uint32_t);
2589 h
= s
->last_scr_height
;
2591 f
= fopen(filename
, "wb");
2594 fprintf(f
, "P6\n%d %d\n%d\n", w
, h
, 255);
2595 for (y
= 0; y
< h
; y
++) {
2596 for (x
= 0; x
< w
; x
++) {
2603 static void vga_screen_dump_common(VGAState
*s
, const char *filename
,
2606 DisplayState
*saved_ds
, ds1
, *ds
= &ds1
;
2607 DisplayChangeListener dcl
;
2609 /* XXX: this is a little hackish */
2610 vga_invalidate_display(s
);
2613 memset(ds
, 0, sizeof(DisplayState
));
2614 memset(&dcl
, 0, sizeof(DisplayChangeListener
));
2615 dcl
.dpy_update
= vga_save_dpy_update
;
2616 dcl
.dpy_resize
= vga_save_dpy_resize
;
2617 dcl
.dpy_refresh
= vga_save_dpy_refresh
;
2618 register_displaychangelistener(ds
, &dcl
);
2619 ds
->allocator
= &default_allocator
;
2620 ds
->surface
= qemu_create_displaysurface(ds
, w
, h
);
2623 s
->graphic_mode
= -1;
2624 vga_update_display(s
);
2626 ppm_save(filename
, ds
->surface
);
2628 qemu_free_displaysurface(ds
);
2632 static void vga_screen_dump_graphic(VGAState
*s
, const char *filename
)
2636 s
->get_resolution(s
, &w
, &h
);
2637 vga_screen_dump_common(s
, filename
, w
, h
);
2640 static void vga_screen_dump_text(VGAState
*s
, const char *filename
)
2642 int w
, h
, cwidth
, cheight
;
2644 vga_get_text_resolution(s
, &w
, &h
, &cwidth
, &cheight
);
2645 vga_screen_dump_common(s
, filename
, w
* cwidth
, h
* cheight
);
2648 /* save the vga display in a PPM image even if no display is
2650 static void vga_screen_dump(void *opaque
, const char *filename
)
2652 VGAState
*s
= (VGAState
*)opaque
;
2654 if (!(s
->ar_index
& 0x20))
2655 vga_screen_dump_blank(s
, filename
);
2656 else if (s
->gr
[6] & 1)
2657 vga_screen_dump_graphic(s
, filename
);
2659 vga_screen_dump_text(s
, filename
);
2660 vga_invalidate_display(s
);