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qemu/hw/cirrus_vga.c
bellard e6e5ad80d8 Cirrus VGA emulation (initial patch by Suzu - heavily modified for easier merge) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@891 c046a42c-6fe2-441c-8c8c-71466251a162
2004-06-05 10:31:55 +00:00

2706 lines
74 KiB
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/*
* QEMU Cirrus VGA Emulator.
*
* Copyright (c) 2004 Fabrice Bellard
* Copyright (c) 2004 Suzu
*
* 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 "vl.h"
#include "vga_int.h"
/***************************************
*
* definitions
*
***************************************/
#define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
// ID
#define CIRRUS_ID_CLGD5422 (0x23<<2)
#define CIRRUS_ID_CLGD5426 (0x24<<2)
#define CIRRUS_ID_CLGD5424 (0x25<<2)
#define CIRRUS_ID_CLGD5428 (0x26<<2)
#define CIRRUS_ID_CLGD5430 (0x28<<2)
#define CIRRUS_ID_CLGD5434 (0x2A<<2)
#define CIRRUS_ID_CLGD5446 (0x2E<<2)
// sequencer 0x07
#define CIRRUS_SR7_BPP_VGA 0x00
#define CIRRUS_SR7_BPP_SVGA 0x01
#define CIRRUS_SR7_BPP_MASK 0x0e
#define CIRRUS_SR7_BPP_8 0x00
#define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
#define CIRRUS_SR7_BPP_24 0x04
#define CIRRUS_SR7_BPP_16 0x06
#define CIRRUS_SR7_BPP_32 0x08
#define CIRRUS_SR7_ISAADDR_MASK 0xe0
// sequencer 0x0f
#define CIRRUS_MEMSIZE_512k 0x08
#define CIRRUS_MEMSIZE_1M 0x10
#define CIRRUS_MEMSIZE_2M 0x18
#define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
// sequencer 0x12
#define CIRRUS_CURSOR_SHOW 0x01
#define CIRRUS_CURSOR_HIDDENPEL 0x02
#define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
// sequencer 0x17
#define CIRRUS_BUSTYPE_VLBFAST 0x10
#define CIRRUS_BUSTYPE_PCI 0x20
#define CIRRUS_BUSTYPE_VLBSLOW 0x30
#define CIRRUS_BUSTYPE_ISA 0x38
#define CIRRUS_MMIO_ENABLE 0x04
#define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
#define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
// control 0x0b
#define CIRRUS_BANKING_DUAL 0x01
#define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
// control 0x30
#define CIRRUS_BLTMODE_BACKWARDS 0x01
#define CIRRUS_BLTMODE_MEMSYSDEST 0x02
#define CIRRUS_BLTMODE_MEMSYSSRC 0x04
#define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
#define CIRRUS_BLTMODE_PATTERNCOPY 0x40
#define CIRRUS_BLTMODE_COLOREXPAND 0x80
#define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
#define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
#define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
#define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
#define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
// control 0x31
#define CIRRUS_BLT_BUSY 0x01
#define CIRRUS_BLT_START 0x02
#define CIRRUS_BLT_RESET 0x04
#define CIRRUS_BLT_FIFOUSED 0x10
// control 0x32
#define CIRRUS_ROP_0 0x00
#define CIRRUS_ROP_SRC_AND_DST 0x05
#define CIRRUS_ROP_NOP 0x06
#define CIRRUS_ROP_SRC_AND_NOTDST 0x09
#define CIRRUS_ROP_NOTDST 0x0b
#define CIRRUS_ROP_SRC 0x0d
#define CIRRUS_ROP_1 0x0e
#define CIRRUS_ROP_NOTSRC_AND_DST 0x50
#define CIRRUS_ROP_SRC_XOR_DST 0x59
#define CIRRUS_ROP_SRC_OR_DST 0x6d
#define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
#define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
#define CIRRUS_ROP_SRC_OR_NOTDST 0xad
#define CIRRUS_ROP_NOTSRC 0xd0
#define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
#define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
// memory-mapped IO
#define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
#define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
#define CIRRUS_MMIO_BLTWIDTH 0x08 // word
#define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
#define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
#define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
#define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
#define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
#define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
#define CIRRUS_MMIO_BLTMODE 0x18 // byte
#define CIRRUS_MMIO_BLTROP 0x1a // byte
#define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
#define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
#define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
#define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
#define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
#define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
#define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
#define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
#define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
#define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
#define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
#define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
#define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
#define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
// PCI 0x00: vendor, 0x02: device
#define PCI_VENDOR_CIRRUS 0x1013
#define PCI_DEVICE_CLGD5430 0x00a0 // CLGD5430 or CLGD5440
#define PCI_DEVICE_CLGD5434 0x00a8
#define PCI_DEVICE_CLGD5436 0x00ac
#define PCI_DEVICE_CLGD5446 0x00b8
#define PCI_DEVICE_CLGD5462 0x00d0
#define PCI_DEVICE_CLGD5465 0x00d6
// PCI 0x04: command(word), 0x06(word): status
#define PCI_COMMAND_IOACCESS 0x0001
#define PCI_COMMAND_MEMACCESS 0x0002
#define PCI_COMMAND_BUSMASTER 0x0004
#define PCI_COMMAND_SPECIALCYCLE 0x0008
#define PCI_COMMAND_MEMWRITEINVALID 0x0010
#define PCI_COMMAND_PALETTESNOOPING 0x0020
#define PCI_COMMAND_PARITYDETECTION 0x0040
#define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
#define PCI_COMMAND_SERR 0x0100
#define PCI_COMMAND_BACKTOBACKTRANS 0x0200
// PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
#define PCI_CLASS_BASE_DISPLAY 0x03
// PCI 0x08, 0x00ff0000
#define PCI_CLASS_SUB_VGA 0x00
// PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
#define PCI_CLASS_HEADERTYPE_00h 0x00
// 0x10-0x3f (headertype 00h)
// PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
// 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
#define PCI_MAP_MEM 0x0
#define PCI_MAP_IO 0x1
#define PCI_MAP_MEM_ADDR_MASK (~0xf)
#define PCI_MAP_IO_ADDR_MASK (~0x3)
#define PCI_MAP_MEMFLAGS_32BIT 0x0
#define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
#define PCI_MAP_MEMFLAGS_64BIT 0x4
#define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
// PCI 0x28: cardbus CIS pointer
// PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
// PCI 0x30: expansion ROM base address
#define PCI_ROMBIOS_ENABLED 0x1
// PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
// PCI 0x38: reserved
// PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
#define CIRRUS_PNPMMIO_SIZE 0x800
/* I/O and memory hook */
#define CIRRUS_HOOK_NOT_HANDLED 0
#define CIRRUS_HOOK_HANDLED 1
typedef void (*cirrus_bitblt_rop_t) (uint8_t * dst, const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight);
typedef void (*cirrus_bitblt_handler_t) (void *opaque);
typedef struct CirrusVGAState {
/* XXX: we use the anonymous struct/union gcc 3.x extension */
struct VGAState;
int cirrus_linear_io_addr;
int cirrus_mmio_io_addr;
uint32_t cirrus_addr_mask;
uint8_t cirrus_shadow_gr0;
uint8_t cirrus_shadow_gr1;
uint8_t cirrus_hidden_dac_lockindex;
uint8_t cirrus_hidden_dac_data;
uint32_t cirrus_bank_base[2];
uint32_t cirrus_bank_limit[2];
uint8_t cirrus_hidden_palette[48];
uint32_t cirrus_hw_cursor_x;
uint32_t cirrus_hw_cursor_y;
int cirrus_blt_pixelwidth;
int cirrus_blt_width;
int cirrus_blt_height;
int cirrus_blt_dstpitch;
int cirrus_blt_srcpitch;
uint32_t cirrus_blt_dstaddr;
uint32_t cirrus_blt_srcaddr;
uint8_t cirrus_blt_mode;
cirrus_bitblt_rop_t cirrus_rop;
#define CIRRUS_BLTBUFSIZE 256
uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
uint8_t *cirrus_srcptr;
uint8_t *cirrus_srcptr_end;
uint32_t cirrus_srccounter;
uint8_t *cirrus_dstptr;
uint8_t *cirrus_dstptr_end;
uint32_t cirrus_dstcounter;
cirrus_bitblt_handler_t cirrus_blt_handler;
int cirrus_blt_horz_counter;
} CirrusVGAState;
typedef struct PCICirrusVGAState {
PCIDevice dev;
CirrusVGAState cirrus_vga;
} PCICirrusVGAState;
/***************************************
*
* prototypes.
*
***************************************/
static void cirrus_bitblt_reset(CirrusVGAState * s);
/***************************************
*
* raster operations
*
***************************************/
#define IMPLEMENT_FORWARD_BITBLT(name,opline) \
static void \
cirrus_bitblt_rop_fwd_##name( \
uint8_t *dst,const uint8_t *src, \
int dstpitch,int srcpitch, \
int bltwidth,int bltheight) \
{ \
int x,y; \
dstpitch -= bltwidth; \
srcpitch -= bltwidth; \
for (y = 0; y < bltheight; y++) { \
for (x = 0; x < bltwidth; x++) { \
opline; \
dst++; \
src++; \
} \
dst += dstpitch; \
src += srcpitch; \
} \
}
#define IMPLEMENT_BACKWARD_BITBLT(name,opline) \
static void \
cirrus_bitblt_rop_bkwd_##name( \
uint8_t *dst,const uint8_t *src, \
int dstpitch,int srcpitch, \
int bltwidth,int bltheight) \
{ \
int x,y; \
dstpitch += bltwidth; \
srcpitch += bltwidth; \
for (y = 0; y < bltheight; y++) { \
for (x = 0; x < bltwidth; x++) { \
opline; \
dst--; \
src--; \
} \
dst += dstpitch; \
src += srcpitch; \
} \
}
IMPLEMENT_FORWARD_BITBLT(0, *dst = 0)
IMPLEMENT_FORWARD_BITBLT(src_and_dst, *dst = (*src) & (*dst))
IMPLEMENT_FORWARD_BITBLT(nop, (void) 0)
IMPLEMENT_FORWARD_BITBLT(src_and_notdst, *dst = (*src) & (~(*dst)))
IMPLEMENT_FORWARD_BITBLT(notdst, *dst = ~(*dst))
IMPLEMENT_FORWARD_BITBLT(src, *dst = *src)
IMPLEMENT_FORWARD_BITBLT(1, *dst = 0xff)
IMPLEMENT_FORWARD_BITBLT(notsrc_and_dst, *dst = (~(*src)) & (*dst))
IMPLEMENT_FORWARD_BITBLT(src_xor_dst, *dst = (*src) ^ (*dst))
IMPLEMENT_FORWARD_BITBLT(src_or_dst, *dst = (*src) | (*dst))
IMPLEMENT_FORWARD_BITBLT(notsrc_or_notdst, *dst = (~(*src)) | (~(*dst)))
IMPLEMENT_FORWARD_BITBLT(src_notxor_dst, *dst = ~((*src) ^ (*dst)))
IMPLEMENT_FORWARD_BITBLT(src_or_notdst, *dst = (*src) | (~(*dst)))
IMPLEMENT_FORWARD_BITBLT(notsrc, *dst = (~(*src)))
IMPLEMENT_FORWARD_BITBLT(notsrc_or_dst, *dst = (~(*src)) | (*dst))
IMPLEMENT_FORWARD_BITBLT(notsrc_and_notdst, *dst = (~(*src)) & (~(*dst)))
IMPLEMENT_BACKWARD_BITBLT(0, *dst = 0)
IMPLEMENT_BACKWARD_BITBLT(src_and_dst, *dst = (*src) & (*dst))
IMPLEMENT_BACKWARD_BITBLT(nop, (void) 0)
IMPLEMENT_BACKWARD_BITBLT(src_and_notdst, *dst = (*src) & (~(*dst)))
IMPLEMENT_BACKWARD_BITBLT(notdst, *dst = ~(*dst))
IMPLEMENT_BACKWARD_BITBLT(src, *dst = *src)
IMPLEMENT_BACKWARD_BITBLT(1, *dst = 0xff)
IMPLEMENT_BACKWARD_BITBLT(notsrc_and_dst, *dst = (~(*src)) & (*dst))
IMPLEMENT_BACKWARD_BITBLT(src_xor_dst, *dst = (*src) ^ (*dst))
IMPLEMENT_BACKWARD_BITBLT(src_or_dst, *dst = (*src) | (*dst))
IMPLEMENT_BACKWARD_BITBLT(notsrc_or_notdst, *dst = (~(*src)) | (~(*dst)))
IMPLEMENT_BACKWARD_BITBLT(src_notxor_dst, *dst = ~((*src) ^ (*dst)))
IMPLEMENT_BACKWARD_BITBLT(src_or_notdst, *dst = (*src) | (~(*dst)))
IMPLEMENT_BACKWARD_BITBLT(notsrc, *dst = (~(*src)))
IMPLEMENT_BACKWARD_BITBLT(notsrc_or_dst, *dst = (~(*src)) | (*dst))
IMPLEMENT_BACKWARD_BITBLT(notsrc_and_notdst, *dst = (~(*src)) & (~(*dst)))
static cirrus_bitblt_rop_t cirrus_get_fwd_rop_handler(uint8_t rop)
{
cirrus_bitblt_rop_t rop_handler = cirrus_bitblt_rop_fwd_nop;
switch (rop) {
case CIRRUS_ROP_0:
rop_handler = cirrus_bitblt_rop_fwd_0;
break;
case CIRRUS_ROP_SRC_AND_DST:
rop_handler = cirrus_bitblt_rop_fwd_src_and_dst;
break;
case CIRRUS_ROP_NOP:
rop_handler = cirrus_bitblt_rop_fwd_nop;
break;
case CIRRUS_ROP_SRC_AND_NOTDST:
rop_handler = cirrus_bitblt_rop_fwd_src_and_notdst;
break;
case CIRRUS_ROP_NOTDST:
rop_handler = cirrus_bitblt_rop_fwd_notdst;
break;
case CIRRUS_ROP_SRC:
rop_handler = cirrus_bitblt_rop_fwd_src;
break;
case CIRRUS_ROP_1:
rop_handler = cirrus_bitblt_rop_fwd_1;
break;
case CIRRUS_ROP_NOTSRC_AND_DST:
rop_handler = cirrus_bitblt_rop_fwd_notsrc_and_dst;
break;
case CIRRUS_ROP_SRC_XOR_DST:
rop_handler = cirrus_bitblt_rop_fwd_src_xor_dst;
break;
case CIRRUS_ROP_SRC_OR_DST:
rop_handler = cirrus_bitblt_rop_fwd_src_or_dst;
break;
case CIRRUS_ROP_NOTSRC_OR_NOTDST:
rop_handler = cirrus_bitblt_rop_fwd_notsrc_or_notdst;
break;
case CIRRUS_ROP_SRC_NOTXOR_DST:
rop_handler = cirrus_bitblt_rop_fwd_src_notxor_dst;
break;
case CIRRUS_ROP_SRC_OR_NOTDST:
rop_handler = cirrus_bitblt_rop_fwd_src_or_notdst;
break;
case CIRRUS_ROP_NOTSRC:
rop_handler = cirrus_bitblt_rop_fwd_notsrc;
break;
case CIRRUS_ROP_NOTSRC_OR_DST:
rop_handler = cirrus_bitblt_rop_fwd_notsrc_or_dst;
break;
case CIRRUS_ROP_NOTSRC_AND_NOTDST:
rop_handler = cirrus_bitblt_rop_fwd_notsrc_and_notdst;
break;
default:
#ifdef DEBUG_CIRRUS
printf("unknown ROP %02x\n", rop);
#endif
break;
}
return rop_handler;
}
static cirrus_bitblt_rop_t cirrus_get_bkwd_rop_handler(uint8_t rop)
{
cirrus_bitblt_rop_t rop_handler = cirrus_bitblt_rop_bkwd_nop;
switch (rop) {
case CIRRUS_ROP_0:
rop_handler = cirrus_bitblt_rop_bkwd_0;
break;
case CIRRUS_ROP_SRC_AND_DST:
rop_handler = cirrus_bitblt_rop_bkwd_src_and_dst;
break;
case CIRRUS_ROP_NOP:
rop_handler = cirrus_bitblt_rop_bkwd_nop;
break;
case CIRRUS_ROP_SRC_AND_NOTDST:
rop_handler = cirrus_bitblt_rop_bkwd_src_and_notdst;
break;
case CIRRUS_ROP_NOTDST:
rop_handler = cirrus_bitblt_rop_bkwd_notdst;
break;
case CIRRUS_ROP_SRC:
rop_handler = cirrus_bitblt_rop_bkwd_src;
break;
case CIRRUS_ROP_1:
rop_handler = cirrus_bitblt_rop_bkwd_1;
break;
case CIRRUS_ROP_NOTSRC_AND_DST:
rop_handler = cirrus_bitblt_rop_bkwd_notsrc_and_dst;
break;
case CIRRUS_ROP_SRC_XOR_DST:
rop_handler = cirrus_bitblt_rop_bkwd_src_xor_dst;
break;
case CIRRUS_ROP_SRC_OR_DST:
rop_handler = cirrus_bitblt_rop_bkwd_src_or_dst;
break;
case CIRRUS_ROP_NOTSRC_OR_NOTDST:
rop_handler = cirrus_bitblt_rop_bkwd_notsrc_or_notdst;
break;
case CIRRUS_ROP_SRC_NOTXOR_DST:
rop_handler = cirrus_bitblt_rop_bkwd_src_notxor_dst;
break;
case CIRRUS_ROP_SRC_OR_NOTDST:
rop_handler = cirrus_bitblt_rop_bkwd_src_or_notdst;
break;
case CIRRUS_ROP_NOTSRC:
rop_handler = cirrus_bitblt_rop_bkwd_notsrc;
break;
case CIRRUS_ROP_NOTSRC_OR_DST:
rop_handler = cirrus_bitblt_rop_bkwd_notsrc_or_dst;
break;
case CIRRUS_ROP_NOTSRC_AND_NOTDST:
rop_handler = cirrus_bitblt_rop_bkwd_notsrc_and_notdst;
break;
default:
#ifdef DEBUG_CIRRUS
printf("unknown ROP %02x\n", rop);
#endif
break;
}
return rop_handler;
}
/***************************************
*
* color expansion
*
***************************************/
static void
cirrus_colorexpand_8(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src, int count)
{
int x;
uint8_t colors[2];
unsigned bits;
unsigned bitmask;
int srcskipleft = 0;
colors[0] = s->gr[0x00];
colors[1] = s->gr[0x01];
bitmask = 0x80 >> srcskipleft;
bits = *src++;
for (x = 0; x < count; x++) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++;
}
*dst++ = colors[!!(bits & bitmask)];
bitmask >>= 1;
}
}
static void
cirrus_colorexpand_16(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src, int count)
{
int x;
uint8_t colors[2][2];
unsigned bits;
unsigned bitmask;
unsigned index;
int srcskipleft = 0;
colors[0][0] = s->gr[0x00];
colors[0][1] = s->gr[0x10];
colors[1][0] = s->gr[0x01];
colors[1][1] = s->gr[0x11];
bitmask = 0x80 >> srcskipleft;
bits = *src++;
for (x = 0; x < count; x++) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++;
}
index = !!(bits & bitmask);
*dst++ = colors[index][0];
*dst++ = colors[index][1];
bitmask >>= 1;
}
}
static void
cirrus_colorexpand_24(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src, int count)
{
int x;
uint8_t colors[2][3];
unsigned bits;
unsigned bitmask;
unsigned index;
int srcskipleft = 0;
colors[0][0] = s->gr[0x00];
colors[0][1] = s->gr[0x10];
colors[0][2] = s->gr[0x12];
colors[1][0] = s->gr[0x01];
colors[1][1] = s->gr[0x11];
colors[1][2] = s->gr[0x13];
bitmask = 0x80 << srcskipleft;
bits = *src++;
for (x = 0; x < count; x++) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++;
}
index = !!(bits & bitmask);
*dst++ = colors[index][0];
*dst++ = colors[index][1];
*dst++ = colors[index][2];
bitmask >>= 1;
}
}
static void
cirrus_colorexpand_32(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src, int count)
{
int x;
uint8_t colors[2][4];
unsigned bits;
unsigned bitmask;
unsigned index;
int srcskipleft = 0;
colors[0][0] = s->gr[0x00];
colors[0][1] = s->gr[0x10];
colors[0][2] = s->gr[0x12];
colors[0][3] = s->gr[0x14];
colors[1][0] = s->gr[0x01];
colors[1][1] = s->gr[0x11];
colors[1][2] = s->gr[0x13];
colors[1][3] = s->gr[0x15];
bitmask = 0x80 << srcskipleft;
bits = *src++;
for (x = 0; x < count; x++) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++;
}
index = !!(bits & bitmask);
*dst++ = colors[index][0];
*dst++ = colors[index][1];
*dst++ = colors[index][2];
*dst++ = colors[index][3];
bitmask >>= 1;
}
}
static void
cirrus_colorexpand(CirrusVGAState * s, uint8_t * dst, const uint8_t * src,
int count)
{
switch (s->cirrus_blt_pixelwidth) {
case 1:
cirrus_colorexpand_8(s, dst, src, count);
break;
case 2:
cirrus_colorexpand_16(s, dst, src, count);
break;
case 3:
cirrus_colorexpand_24(s, dst, src, count);
break;
case 4:
cirrus_colorexpand_32(s, dst, src, count);
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: COLOREXPAND pixelwidth %d - unimplemented\n",
s->cirrus_blt_pixelwidth);
#endif
break;
}
}
static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
int off_pitch, int bytesperline,
int lines)
{
int y;
int off_cur;
int off_cur_end;
for (y = 0; y < lines; y++) {
off_cur = off_begin;
off_cur_end = off_cur + bytesperline;
off_cur &= TARGET_PAGE_MASK;
while (off_cur < off_cur_end) {
cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
off_cur += TARGET_PAGE_SIZE;
}
off_begin += off_pitch;
}
}
static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
const uint8_t * src)
{
uint8_t work_colorexp[256];
uint8_t *dst;
uint8_t *dstc;
int x, y;
int tilewidth, tileheight;
int patternbytes = s->cirrus_blt_pixelwidth * 8;
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
cirrus_colorexpand(s, work_colorexp, src, 8 * 8);
src = work_colorexp;
s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_COLOREXPAND;
}
if (s->cirrus_blt_mode & ~CIRRUS_BLTMODE_PATTERNCOPY) {
#ifdef DEBUG_CIRRUS
printf("cirrus: blt mode %02x (pattercopy) - unimplemented\n",
s->cirrus_blt_mode);
#endif
return 0;
}
dst = s->vram_ptr + s->cirrus_blt_dstaddr;
for (y = 0; y < s->cirrus_blt_height; y += 8) {
dstc = dst;
tileheight = qemu_MIN(8, s->cirrus_blt_height - y);
for (x = 0; x < s->cirrus_blt_width; x += patternbytes) {
tilewidth = qemu_MIN(patternbytes, s->cirrus_blt_width - x);
(*s->cirrus_rop) (dstc, src,
s->cirrus_blt_dstpitch, patternbytes,
tilewidth, tileheight);
dstc += patternbytes;
}
dst += s->cirrus_blt_dstpitch * 8;
}
cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
s->cirrus_blt_dstpitch, s->cirrus_blt_width,
s->cirrus_blt_height);
return 1;
}
/***************************************
*
* bitblt (video-to-video)
*
***************************************/
static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
{
return cirrus_bitblt_common_patterncopy(s,
s->vram_ptr +
s->cirrus_blt_srcaddr);
}
static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
{
if ((s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) != 0) {
#ifdef DEBUG_CIRRUS
printf("cirrus: CIRRUS_BLTMODE_COLOREXPAND - unimplemented\n");
#endif
return 0;
}
if ((s->cirrus_blt_mode & (~CIRRUS_BLTMODE_BACKWARDS)) != 0) {
#ifdef DEBUG_CIRRUS
printf("cirrus: blt mode %02x - unimplemented\n",
s->cirrus_blt_mode);
#endif
return 0;
}
(*s->cirrus_rop) (s->vram_ptr + s->cirrus_blt_dstaddr,
s->vram_ptr + s->cirrus_blt_srcaddr,
s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
s->cirrus_blt_width, s->cirrus_blt_height);
cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
s->cirrus_blt_dstpitch, s->cirrus_blt_width,
s->cirrus_blt_height);
return 1;
}
/***************************************
*
* bitblt (cpu-to-video)
*
***************************************/
static void cirrus_bitblt_cputovideo_patterncopy(void *opaque)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
int data_count;
data_count = s->cirrus_srcptr - &s->cirrus_bltbuf[0];
if (data_count > 0) {
if (data_count != s->cirrus_srccounter) {
#ifdef DEBUG_CIRRUS
printf("cirrus: internal error\n");
#endif
} else {
cirrus_bitblt_common_patterncopy(s, &s->cirrus_bltbuf[0]);
}
cirrus_bitblt_reset(s);
}
}
static void cirrus_bitblt_cputovideo_copy(void *opaque)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
int data_count;
int data_avail;
uint8_t work_colorexp[256];
uint8_t *src_ptr = NULL;
int src_avail = 0;
int src_processing;
int src_linepad = 0;
if (s->cirrus_blt_height <= 0) {
s->cirrus_srcptr = s->cirrus_srcptr_end;
return;
}
s->cirrus_srcptr = &s->cirrus_bltbuf[0];
while (1) {
/* get BLT source. */
if (src_avail <= 0) {
data_count = s->cirrus_srcptr_end - s->cirrus_srcptr;
if (data_count <= 0)
break;
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
if (s->cirrus_blt_mode & ~CIRRUS_BLTMODE_COLOREXPAND) {
#ifdef DEBUG_CIRRUS
printf("cirrus: unsupported\n");
#endif
cirrus_bitblt_reset(s);
return;
}
data_avail = qemu_MIN(data_count, 256 / 32);
cirrus_colorexpand(s, work_colorexp, s->cirrus_srcptr,
data_avail * 8);
src_ptr = &work_colorexp[0];
src_avail = data_avail * 8 * s->cirrus_blt_pixelwidth;
s->cirrus_srcptr += data_avail;
src_linepad =
((s->cirrus_blt_width + 7) / 8) * 8 -
s->cirrus_blt_width;
src_linepad *= s->cirrus_blt_pixelwidth;
} else {
if (s->cirrus_blt_mode != 0) {
#ifdef DEBUG_CIRRUS
printf("cirrus: unsupported\n");
#endif
cirrus_bitblt_reset(s);
return;
}
src_ptr = s->cirrus_srcptr;
src_avail =
data_count / s->cirrus_blt_pixelwidth *
s->cirrus_blt_pixelwidth;
s->cirrus_srcptr += src_avail;
}
if (src_avail <= 0)
break;
}
/* 1-line BLT */
src_processing =
s->cirrus_blt_srcpitch - s->cirrus_blt_horz_counter;
src_processing = qemu_MIN(src_avail, src_processing);
(*s->cirrus_rop) (s->vram_ptr + s->cirrus_blt_dstaddr,
src_ptr, 0, 0, src_processing, 1);
cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
src_processing, 1);
s->cirrus_blt_dstaddr += src_processing;
src_ptr += src_processing;
src_avail -= src_processing;
s->cirrus_blt_horz_counter += src_processing;
if (s->cirrus_blt_horz_counter >= s->cirrus_blt_srcpitch) {
src_ptr += src_linepad;
src_avail -= src_linepad;
s->cirrus_blt_dstaddr +=
s->cirrus_blt_dstpitch - s->cirrus_blt_srcpitch;
s->cirrus_blt_horz_counter = 0;
s->cirrus_blt_height--;
if (s->cirrus_blt_height <= 0) {
s->cirrus_srcptr = s->cirrus_srcptr_end;
return;
}
}
}
}
static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
{
int copy_count;
int avail_count;
s->cirrus_blt_handler(s);
if (s->cirrus_srccounter > 0) {
s->cirrus_srccounter -= s->cirrus_srcptr - &s->cirrus_bltbuf[0];
copy_count = s->cirrus_srcptr_end - s->cirrus_srcptr;
memmove(&s->cirrus_bltbuf[0], s->cirrus_srcptr, copy_count);
avail_count = qemu_MIN(CIRRUS_BLTBUFSIZE, s->cirrus_srccounter);
s->cirrus_srcptr = &s->cirrus_bltbuf[0];
s->cirrus_srcptr_end = s->cirrus_srcptr + avail_count;
if (s->cirrus_srccounter <= 0) {
cirrus_bitblt_reset(s);
}
}
}
/***************************************
*
* bitblt wrapper
*
***************************************/
static void cirrus_bitblt_reset(CirrusVGAState * s)
{
s->gr[0x31] &=
~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
s->cirrus_srcptr = &s->cirrus_bltbuf[0];
s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
s->cirrus_srccounter = 0;
s->cirrus_dstptr = &s->cirrus_bltbuf[0];
s->cirrus_dstptr_end = &s->cirrus_bltbuf[0];
s->cirrus_dstcounter = 0;
s->cirrus_blt_handler = NULL;
}
static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
{
s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
s->cirrus_srcptr = &s->cirrus_bltbuf[0];
s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
s->cirrus_srccounter = 8;
} else {
s->cirrus_srccounter = 8 * 8 * s->cirrus_blt_pixelwidth;
}
s->cirrus_blt_srcpitch = 0;
s->cirrus_blt_handler = cirrus_bitblt_cputovideo_patterncopy;
} else {
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
s->cirrus_srccounter =
((s->cirrus_blt_width + 7) / 8) * s->cirrus_blt_height;
s->cirrus_blt_srcpitch =
s->cirrus_blt_width * s->cirrus_blt_pixelwidth;
} else {
s->cirrus_srccounter =
s->cirrus_blt_width * s->cirrus_blt_height;
s->cirrus_blt_srcpitch = s->cirrus_blt_width;
}
/* 4-byte alignment */
s->cirrus_srccounter = (s->cirrus_srccounter + 3) & (~3);
s->cirrus_blt_handler = cirrus_bitblt_cputovideo_copy;
s->cirrus_blt_horz_counter = 0;
}
cirrus_bitblt_cputovideo_next(s);
return 1;
}
static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
{
/* XXX */
#ifdef DEBUG_CIRRUS
printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
#endif
return 0;
}
static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
{
int ret;
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
ret = cirrus_bitblt_videotovideo_patterncopy(s);
} else {
ret = cirrus_bitblt_videotovideo_copy(s);
}
if (ret)
cirrus_bitblt_reset(s);
return ret;
}
static void cirrus_bitblt_start(CirrusVGAState * s)
{
uint8_t blt_rop;
s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
s->cirrus_blt_dstaddr =
(s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
s->cirrus_blt_srcaddr =
(s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
s->cirrus_blt_mode = s->gr[0x30];
blt_rop = s->gr[0x32];
switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
case CIRRUS_BLTMODE_PIXELWIDTH8:
s->cirrus_blt_pixelwidth = 1;
break;
case CIRRUS_BLTMODE_PIXELWIDTH16:
s->cirrus_blt_pixelwidth = 2;
break;
case CIRRUS_BLTMODE_PIXELWIDTH24:
s->cirrus_blt_pixelwidth = 3;
break;
case CIRRUS_BLTMODE_PIXELWIDTH32:
s->cirrus_blt_pixelwidth = 4;
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: bitblt - pixel width is unknown\n");
#endif
goto bitblt_ignore;
}
s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
if ((s->
cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
CIRRUS_BLTMODE_MEMSYSDEST))
== (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
#ifdef DEBUG_CIRRUS
printf("cirrus: bitblt - memory-to-memory copy is requested\n");
#endif
goto bitblt_ignore;
}
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
s->cirrus_rop = cirrus_get_bkwd_rop_handler(blt_rop);
} else {
s->cirrus_rop = cirrus_get_fwd_rop_handler(blt_rop);
}
// setup bitblt engine.
if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
if (!cirrus_bitblt_cputovideo(s))
goto bitblt_ignore;
} else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
if (!cirrus_bitblt_videotocpu(s))
goto bitblt_ignore;
} else {
if (!cirrus_bitblt_videotovideo(s))
goto bitblt_ignore;
}
return;
bitblt_ignore:;
cirrus_bitblt_reset(s);
}
static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
{
unsigned old_value;
old_value = s->gr[0x31];
s->gr[0x31] = reg_value;
if (((old_value & CIRRUS_BLT_RESET) != 0) &&
((reg_value & CIRRUS_BLT_RESET) == 0)) {
cirrus_bitblt_reset(s);
} else if (((old_value & CIRRUS_BLT_START) == 0) &&
((reg_value & CIRRUS_BLT_START) != 0)) {
s->gr[0x31] |= CIRRUS_BLT_BUSY;
cirrus_bitblt_start(s);
}
}
/***************************************
*
* basic parameters
*
***************************************/
static void cirrus_get_offsets(VGAState *s1,
uint32_t *pline_offset,
uint32_t *pstart_addr)
{
CirrusVGAState * s = (CirrusVGAState *)s1;
uint32_t start_addr;
uint32_t line_offset;
line_offset = s->cr[0x13]
| ((s->cr[0x1b] & 0x10) << 8);
line_offset <<= 3;
*pline_offset = line_offset;
start_addr = (s->cr[0x0c] << 8)
| s->cr[0x0d]
| ((s->cr[0x1b] & 0x01) << 16)
| ((s->cr[0x1b] & 0x0c) << 15)
| ((s->cr[0x1d] & 0x80) << 12);
*pstart_addr = start_addr;
}
static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
{
uint32_t ret = 16;
switch (s->cirrus_hidden_dac_data & 0xf) {
case 0:
ret = 15;
break; /* Sierra HiColor */
case 1:
ret = 16;
break; /* XGA HiColor */
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: invalid DAC value %x in 16bpp\n",
(s->cirrus_hidden_dac_data & 0xf));
#endif
ret = 15; /* XXX */
break;
}
return ret;
}
static int cirrus_get_bpp(VGAState *s1)
{
CirrusVGAState * s = (CirrusVGAState *)s1;
uint32_t ret = 8;
if ((s->sr[0x07] & 0x01) != 0) {
/* Cirrus SVGA */
switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
case CIRRUS_SR7_BPP_8:
ret = 8;
break;
case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
ret = cirrus_get_bpp16_depth(s);
break;
case CIRRUS_SR7_BPP_24:
ret = 24;
break;
case CIRRUS_SR7_BPP_16:
ret = cirrus_get_bpp16_depth(s);
break;
case CIRRUS_SR7_BPP_32:
ret = 32;
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
#endif
ret = 8;
break;
}
} else {
/* VGA */
ret = 8;
}
return ret;
}
/***************************************
*
* bank memory
*
***************************************/
static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
{
unsigned offset;
unsigned limit;
if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
offset = s->gr[0x09 + bank_index];
else /* single bank */
offset = s->gr[0x09];
if ((s->gr[0x0b] & 0x20) != 0)
offset <<= 14;
else
offset <<= 12;
if (s->vram_size <= offset)
limit = 0;
else
limit = s->vram_size - offset;
if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
if (limit > 0x8000) {
offset += 0x8000;
limit -= 0x8000;
} else {
limit = 0;
}
}
if (limit > 0) {
s->cirrus_bank_base[bank_index] = offset;
s->cirrus_bank_limit[bank_index] = limit;
} else {
s->cirrus_bank_base[bank_index] = 0;
s->cirrus_bank_limit[bank_index] = 0;
}
}
/***************************************
*
* I/O access between 0x3c4-0x3c5
*
***************************************/
static int
cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
{
switch (reg_index) {
case 0x00: // Standard VGA
case 0x01: // Standard VGA
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x06: // Unlock Cirrus extensions
*reg_value = s->sr[reg_index];
break;
case 0x05: // ???
case 0x07: // Extended Sequencer Mode
case 0x08: // EEPROM Control
case 0x09: // Scratch Register 0
case 0x0a: // Scratch Register 1
case 0x0b: // VCLK 0
case 0x0c: // VCLK 1
case 0x0d: // VCLK 2
case 0x0e: // VCLK 3
case 0x0f: // DRAM Control
case 0x10:
case 0x30:
case 0x50:
case 0x70: // Graphics Cursor X
case 0x90:
case 0xb0:
case 0xd0:
case 0xf0: // Graphics Cursor X
case 0x11:
case 0x31:
case 0x51:
case 0x71: // Graphics Cursor Y
case 0x91:
case 0xb1:
case 0xd1:
case 0xf1: // Graphics Cursor Y
case 0x12: // Graphics Cursor Attribute
case 0x13: // Graphics Cursor Pattern Address
case 0x14: // Scratch Register 2
case 0x15: // Scratch Register 3
case 0x16: // Performance Tuning Register
case 0x17: // Configuration Readback and Extended Control
case 0x18: // Signature Generator Control
case 0x19: // Signal Generator Result
case 0x1a: // Signal Generator Result
case 0x1b: // VCLK 0 Denominator & Post
case 0x1c: // VCLK 1 Denominator & Post
case 0x1d: // VCLK 2 Denominator & Post
case 0x1e: // VCLK 3 Denominator & Post
case 0x1f: // BIOS Write Enable and MCLK select
#ifdef DEBUG_CIRRUS
printf("cirrus: handled inport sr_index %02x\n", reg_index);
#endif
*reg_value = s->sr[reg_index];
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: inport sr_index %02x\n", reg_index);
#endif
*reg_value = 0xff;
break;
}
return CIRRUS_HOOK_HANDLED;
}
static int
cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
{
switch (reg_index) {
case 0x00: // Standard VGA
case 0x01: // Standard VGA
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x06: // Unlock Cirrus extensions
reg_value &= 0x17;
if (reg_value == 0x12) {
s->sr[reg_index] = 0x12;
} else {
s->sr[reg_index] = 0x0f;
}
break;
case 0x10:
case 0x30:
case 0x50:
case 0x70: // Graphics Cursor X
case 0x90:
case 0xb0:
case 0xd0:
case 0xf0: // Graphics Cursor X
s->sr[0x10] = reg_value;
s->cirrus_hw_cursor_x = ((reg_index << 3) & 0x700) | reg_value;
break;
case 0x11:
case 0x31:
case 0x51:
case 0x71: // Graphics Cursor Y
case 0x91:
case 0xb1:
case 0xd1:
case 0xf1: // Graphics Cursor Y
s->sr[0x11] = reg_value;
s->cirrus_hw_cursor_y = ((reg_index << 3) & 0x700) | reg_value;
break;
case 0x07: // Extended Sequencer Mode
case 0x08: // EEPROM Control
case 0x09: // Scratch Register 0
case 0x0a: // Scratch Register 1
case 0x0b: // VCLK 0
case 0x0c: // VCLK 1
case 0x0d: // VCLK 2
case 0x0e: // VCLK 3
case 0x0f: // DRAM Control
case 0x12: // Graphics Cursor Attribute
case 0x13: // Graphics Cursor Pattern Address
case 0x14: // Scratch Register 2
case 0x15: // Scratch Register 3
case 0x16: // Performance Tuning Register
case 0x17: // Configuration Readback and Extended Control
case 0x18: // Signature Generator Control
case 0x19: // Signature Generator Result
case 0x1a: // Signature Generator Result
case 0x1b: // VCLK 0 Denominator & Post
case 0x1c: // VCLK 1 Denominator & Post
case 0x1d: // VCLK 2 Denominator & Post
case 0x1e: // VCLK 3 Denominator & Post
case 0x1f: // BIOS Write Enable and MCLK select
s->sr[reg_index] = reg_value;
#ifdef DEBUG_CIRRUS
printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
reg_index, reg_value);
#endif
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
reg_value);
#endif
break;
}
return CIRRUS_HOOK_HANDLED;
}
/***************************************
*
* I/O access at 0x3c6
*
***************************************/
static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
{
*reg_value = 0xff;
if (s->cirrus_hidden_dac_lockindex < 5) {
if (s->cirrus_hidden_dac_lockindex == 4) {
*reg_value = s->cirrus_hidden_dac_data;
}
s->cirrus_hidden_dac_lockindex++;
}
}
static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
{
if (s->cirrus_hidden_dac_lockindex == 4) {
s->cirrus_hidden_dac_data = reg_value;
#ifdef DEBUG_CIRRUS
printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
#endif
}
s->cirrus_hidden_dac_lockindex = 0;
}
/***************************************
*
* I/O access at 0x3c9
*
***************************************/
static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
{
if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
return CIRRUS_HOOK_NOT_HANDLED;
if (s->dac_read_index < 0x10) {
*reg_value =
s->cirrus_hidden_palette[s->dac_read_index * 3 +
s->dac_sub_index];
} else {
*reg_value = 0xff; /* XXX */
}
if (++s->dac_sub_index == 3) {
s->dac_sub_index = 0;
s->dac_read_index++;
}
return CIRRUS_HOOK_HANDLED;
}
static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
{
if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
return CIRRUS_HOOK_NOT_HANDLED;
s->dac_cache[s->dac_sub_index] = reg_value;
if (++s->dac_sub_index == 3) {
if (s->dac_read_index < 0x10) {
memcpy(&s->cirrus_hidden_palette[s->dac_write_index * 3],
s->dac_cache, 3);
/* XXX update cursor */
}
s->dac_sub_index = 0;
s->dac_write_index++;
}
return CIRRUS_HOOK_HANDLED;
}
/***************************************
*
* I/O access between 0x3ce-0x3cf
*
***************************************/
static int
cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
{
switch (reg_index) {
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
case 0x06: // Standard VGA
case 0x07: // Standard VGA
case 0x08: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x05: // Standard VGA, Cirrus extended mode
default:
break;
}
if (reg_index < 0x3a) {
*reg_value = s->gr[reg_index];
} else {
#ifdef DEBUG_CIRRUS
printf("cirrus: inport gr_index %02x\n", reg_index);
#endif
*reg_value = 0xff;
}
return CIRRUS_HOOK_HANDLED;
}
static int
cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
{
switch (reg_index) {
case 0x00: // Standard VGA, BGCOLOR 0x000000ff
s->gr[0x00] = reg_value;
return CIRRUS_HOOK_NOT_HANDLED;
case 0x01: // Standard VGA, FGCOLOR 0x000000ff
s->gr[0x01] = reg_value;
return CIRRUS_HOOK_NOT_HANDLED;
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
case 0x06: // Standard VGA
case 0x07: // Standard VGA
case 0x08: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x05: // Standard VGA, Cirrus extended mode
s->gr[reg_index] = reg_value & 0x7f;
break;
case 0x09: // bank offset #0
case 0x0A: // bank offset #1
case 0x0B:
s->gr[reg_index] = reg_value;
cirrus_update_bank_ptr(s, 0);
cirrus_update_bank_ptr(s, 1);
break;
case 0x10: // BGCOLOR 0x0000ff00
case 0x11: // FGCOLOR 0x0000ff00
case 0x12: // BGCOLOR 0x00ff0000
case 0x13: // FGCOLOR 0x00ff0000
case 0x14: // BGCOLOR 0xff000000
case 0x15: // FGCOLOR 0xff000000
case 0x20: // BLT WIDTH 0x0000ff
case 0x22: // BLT HEIGHT 0x0000ff
case 0x24: // BLT DEST PITCH 0x0000ff
case 0x26: // BLT SRC PITCH 0x0000ff
case 0x28: // BLT DEST ADDR 0x0000ff
case 0x29: // BLT DEST ADDR 0x00ff00
case 0x2c: // BLT SRC ADDR 0x0000ff
case 0x2d: // BLT SRC ADDR 0x00ff00
case 0x30: // BLT MODE
case 0x32: // RASTER OP
case 0x34: // BLT TRANSPARENT COLOR 0x00ff
case 0x35: // BLT TRANSPARENT COLOR 0xff00
case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
s->gr[reg_index] = reg_value;
break;
case 0x21: // BLT WIDTH 0x001f00
case 0x23: // BLT HEIGHT 0x001f00
case 0x25: // BLT DEST PITCH 0x001f00
case 0x27: // BLT SRC PITCH 0x001f00
s->gr[reg_index] = reg_value & 0x1f;
break;
case 0x2a: // BLT DEST ADDR 0x3f0000
case 0x2e: // BLT SRC ADDR 0x3f0000
s->gr[reg_index] = reg_value & 0x3f;
break;
case 0x31: // BLT STATUS/START
cirrus_write_bitblt(s, reg_value);
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
reg_value);
#endif
break;
}
return CIRRUS_HOOK_HANDLED;
}
/***************************************
*
* I/O access between 0x3d4-0x3d5
*
***************************************/
static int
cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
{
switch (reg_index) {
case 0x00: // Standard VGA
case 0x01: // Standard VGA
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
case 0x05: // Standard VGA
case 0x06: // Standard VGA
case 0x07: // Standard VGA
case 0x08: // Standard VGA
case 0x09: // Standard VGA
case 0x0a: // Standard VGA
case 0x0b: // Standard VGA
case 0x0c: // Standard VGA
case 0x0d: // Standard VGA
case 0x0e: // Standard VGA
case 0x0f: // Standard VGA
case 0x10: // Standard VGA
case 0x11: // Standard VGA
case 0x12: // Standard VGA
case 0x13: // Standard VGA
case 0x14: // Standard VGA
case 0x15: // Standard VGA
case 0x16: // Standard VGA
case 0x17: // Standard VGA
case 0x18: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x19: // Interlace End
case 0x1a: // Miscellaneous Control
case 0x1b: // Extended Display Control
case 0x1c: // Sync Adjust and Genlock
case 0x1d: // Overlay Extended Control
case 0x22: // Graphics Data Latches Readback (R)
case 0x24: // Attribute Controller Toggle Readback (R)
case 0x25: // Part Status
case 0x27: // Part ID (R)
*reg_value = s->cr[reg_index];
break;
case 0x26: // Attribute Controller Index Readback (R)
*reg_value = s->ar_index & 0x3f;
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: inport cr_index %02x\n", reg_index);
*reg_value = 0xff;
#endif
break;
}
return CIRRUS_HOOK_HANDLED;
}
static int
cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
{
switch (reg_index) {
case 0x00: // Standard VGA
case 0x01: // Standard VGA
case 0x02: // Standard VGA
case 0x03: // Standard VGA
case 0x04: // Standard VGA
case 0x05: // Standard VGA
case 0x06: // Standard VGA
case 0x07: // Standard VGA
case 0x08: // Standard VGA
case 0x09: // Standard VGA
case 0x0a: // Standard VGA
case 0x0b: // Standard VGA
case 0x0c: // Standard VGA
case 0x0d: // Standard VGA
case 0x0e: // Standard VGA
case 0x0f: // Standard VGA
case 0x10: // Standard VGA
case 0x11: // Standard VGA
case 0x12: // Standard VGA
case 0x13: // Standard VGA
case 0x14: // Standard VGA
case 0x15: // Standard VGA
case 0x16: // Standard VGA
case 0x17: // Standard VGA
case 0x18: // Standard VGA
return CIRRUS_HOOK_NOT_HANDLED;
case 0x19: // Interlace End
case 0x1a: // Miscellaneous Control
case 0x1b: // Extended Display Control
case 0x1c: // Sync Adjust and Genlock
s->cr[reg_index] = reg_value;
#ifdef DEBUG_CIRRUS
printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
reg_index, reg_value);
#endif
break;
case 0x22: // Graphics Data Latches Readback (R)
case 0x24: // Attribute Controller Toggle Readback (R)
case 0x26: // Attribute Controller Index Readback (R)
case 0x27: // Part ID (R)
break;
case 0x1d: // Overlay Extended Control
case 0x25: // Part Status
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
reg_value);
#endif
break;
}
return CIRRUS_HOOK_HANDLED;
}
/***************************************
*
* memory-mapped I/O (bitblt)
*
***************************************/
static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
{
int value = 0xff;
switch (address) {
case (CIRRUS_MMIO_BLTBGCOLOR + 0):
cirrus_hook_read_gr(s, 0x00, &value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 1):
cirrus_hook_read_gr(s, 0x10, &value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 2):
cirrus_hook_read_gr(s, 0x12, &value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 3):
cirrus_hook_read_gr(s, 0x14, &value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 0):
cirrus_hook_read_gr(s, 0x01, &value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 1):
cirrus_hook_read_gr(s, 0x11, &value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 2):
cirrus_hook_read_gr(s, 0x13, &value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 3):
cirrus_hook_read_gr(s, 0x15, &value);
break;
case (CIRRUS_MMIO_BLTWIDTH + 0):
cirrus_hook_read_gr(s, 0x20, &value);
break;
case (CIRRUS_MMIO_BLTWIDTH + 1):
cirrus_hook_read_gr(s, 0x21, &value);
break;
case (CIRRUS_MMIO_BLTHEIGHT + 0):
cirrus_hook_read_gr(s, 0x22, &value);
break;
case (CIRRUS_MMIO_BLTHEIGHT + 1):
cirrus_hook_read_gr(s, 0x23, &value);
break;
case (CIRRUS_MMIO_BLTDESTPITCH + 0):
cirrus_hook_read_gr(s, 0x24, &value);
break;
case (CIRRUS_MMIO_BLTDESTPITCH + 1):
cirrus_hook_read_gr(s, 0x25, &value);
break;
case (CIRRUS_MMIO_BLTSRCPITCH + 0):
cirrus_hook_read_gr(s, 0x26, &value);
break;
case (CIRRUS_MMIO_BLTSRCPITCH + 1):
cirrus_hook_read_gr(s, 0x27, &value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 0):
cirrus_hook_read_gr(s, 0x28, &value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 1):
cirrus_hook_read_gr(s, 0x29, &value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 2):
cirrus_hook_read_gr(s, 0x2a, &value);
break;
case (CIRRUS_MMIO_BLTSRCADDR + 0):
cirrus_hook_read_gr(s, 0x2c, &value);
break;
case (CIRRUS_MMIO_BLTSRCADDR + 1):
cirrus_hook_read_gr(s, 0x2d, &value);
break;
case (CIRRUS_MMIO_BLTSRCADDR + 2):
cirrus_hook_read_gr(s, 0x2e, &value);
break;
case CIRRUS_MMIO_BLTWRITEMASK:
cirrus_hook_read_gr(s, 0x2f, &value);
break;
case CIRRUS_MMIO_BLTMODE:
cirrus_hook_read_gr(s, 0x30, &value);
break;
case CIRRUS_MMIO_BLTROP:
cirrus_hook_read_gr(s, 0x32, &value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
cirrus_hook_read_gr(s, 0x34, &value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
cirrus_hook_read_gr(s, 0x35, &value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
cirrus_hook_read_gr(s, 0x38, &value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
cirrus_hook_read_gr(s, 0x39, &value);
break;
case CIRRUS_MMIO_BLTSTATUS:
cirrus_hook_read_gr(s, 0x31, &value);
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: mmio read - address 0x%04x\n", address);
#endif
break;
}
return (uint8_t) value;
}
static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
uint8_t value)
{
switch (address) {
case (CIRRUS_MMIO_BLTBGCOLOR + 0):
cirrus_hook_write_gr(s, 0x00, value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 1):
cirrus_hook_write_gr(s, 0x10, value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 2):
cirrus_hook_write_gr(s, 0x12, value);
break;
case (CIRRUS_MMIO_BLTBGCOLOR + 3):
cirrus_hook_write_gr(s, 0x14, value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 0):
cirrus_hook_write_gr(s, 0x01, value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 1):
cirrus_hook_write_gr(s, 0x11, value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 2):
cirrus_hook_write_gr(s, 0x13, value);
break;
case (CIRRUS_MMIO_BLTFGCOLOR + 3):
cirrus_hook_write_gr(s, 0x15, value);
break;
case (CIRRUS_MMIO_BLTWIDTH + 0):
cirrus_hook_write_gr(s, 0x20, value);
break;
case (CIRRUS_MMIO_BLTWIDTH + 1):
cirrus_hook_write_gr(s, 0x21, value);
break;
case (CIRRUS_MMIO_BLTHEIGHT + 0):
cirrus_hook_write_gr(s, 0x22, value);
break;
case (CIRRUS_MMIO_BLTHEIGHT + 1):
cirrus_hook_write_gr(s, 0x23, value);
break;
case (CIRRUS_MMIO_BLTDESTPITCH + 0):
cirrus_hook_write_gr(s, 0x24, value);
break;
case (CIRRUS_MMIO_BLTDESTPITCH + 1):
cirrus_hook_write_gr(s, 0x25, value);
break;
case (CIRRUS_MMIO_BLTSRCPITCH + 0):
cirrus_hook_write_gr(s, 0x26, value);
break;
case (CIRRUS_MMIO_BLTSRCPITCH + 1):
cirrus_hook_write_gr(s, 0x27, value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 0):
cirrus_hook_write_gr(s, 0x28, value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 1):
cirrus_hook_write_gr(s, 0x29, value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 2):
cirrus_hook_write_gr(s, 0x2a, value);
break;
case (CIRRUS_MMIO_BLTDESTADDR + 3):
/* ignored */
break;
case (CIRRUS_MMIO_BLTSRCADDR + 0):
cirrus_hook_write_gr(s, 0x2c, value);
break;
case (CIRRUS_MMIO_BLTSRCADDR + 1):
cirrus_hook_write_gr(s, 0x2d, value);
break;
case (CIRRUS_MMIO_BLTSRCADDR + 2):
cirrus_hook_write_gr(s, 0x2e, value);
break;
case CIRRUS_MMIO_BLTWRITEMASK:
cirrus_hook_write_gr(s, 0x2f, value);
break;
case CIRRUS_MMIO_BLTMODE:
cirrus_hook_write_gr(s, 0x30, value);
break;
case CIRRUS_MMIO_BLTROP:
cirrus_hook_write_gr(s, 0x32, value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
cirrus_hook_write_gr(s, 0x34, value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
cirrus_hook_write_gr(s, 0x35, value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
cirrus_hook_write_gr(s, 0x38, value);
break;
case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
cirrus_hook_write_gr(s, 0x39, value);
break;
case CIRRUS_MMIO_BLTSTATUS:
cirrus_hook_write_gr(s, 0x31, value);
break;
default:
#ifdef DEBUG_CIRRUS
printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
address, value);
#endif
break;
}
}
/***************************************
*
* memory-mapped I/O (vga)
*
***************************************/
static uint8_t cirrus_mmio_vga_read(CirrusVGAState * s, unsigned address)
{
#ifdef DEBUG_CIRRUS
printf("cirrus: mmio vga read (unimplemented) - address 0x%04x\n",
address);
#endif
return 0xff;
}
static void cirrus_mmio_vga_write(CirrusVGAState * s, unsigned address,
uint8_t value)
{
#ifdef DEBUG_CIRRUS
printf
("cirrus: mmio vga write (unimplemented) - address 0x%04x, value 0x%02x\n",
address, value);
#endif
}
/***************************************
*
* write mode 4/5
*
* assume TARGET_PAGE_SIZE >= 16
*
***************************************/
static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
unsigned mode,
unsigned offset,
uint32_t mem_value)
{
int x;
unsigned val = mem_value;
uint8_t *dst;
dst = s->vram_ptr + offset;
for (x = 0; x < 8; x++) {
if (val & 0x80) {
*dst++ = s->gr[0x01];
} else if (mode == 5) {
*dst++ = s->gr[0x00];
}
val <<= 1;
}
cpu_physical_memory_set_dirty(s->vram_offset + offset);
cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
}
static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
unsigned mode,
unsigned offset,
uint32_t mem_value)
{
int x;
unsigned val = mem_value;
uint8_t *dst;
dst = s->vram_ptr + offset;
for (x = 0; x < 8; x++) {
if (val & 0x80) {
*dst++ = s->gr[0x01];
*dst++ = s->gr[0x11];
} else if (mode == 5) {
*dst++ = s->gr[0x00];
*dst++ = s->gr[0x10];
}
val <<= 1;
}
cpu_physical_memory_set_dirty(s->vram_offset + offset);
cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
}
/***************************************
*
* memory access between 0xa0000-0xbffff
*
***************************************/
static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
{
CirrusVGAState *s = opaque;
unsigned bank_index;
unsigned bank_offset;
uint32_t val;
if ((s->sr[0x07] & 0x01) == 0) {
return vga_mem_readb(s, addr);
}
if (addr < 0x10000) {
/* XXX handle bitblt */
/* video memory */
bank_index = addr >> 15;
bank_offset = addr & 0x7fff;
if (bank_offset < s->cirrus_bank_limit[bank_index]) {
bank_offset += s->cirrus_bank_base[bank_index];
if ((s->gr[0x0B] & 0x14) == 0x14) {
bank_offset <<= 4;
} else if (s->gr[0x0B] & 0x02) {
bank_offset <<= 3;
}
bank_offset &= s->cirrus_addr_mask;
val = *(s->vram_ptr + bank_offset);
} else
val = 0xff;
} else if (addr >= 0x18000 && addr < 0x18100) {
/* memory-mapped I/O */
val = 0xff;
if ((s->sr[0x17] & 0x44) == 0x04) {
val = cirrus_mmio_blt_read(s, addr & 0xff);
}
} else {
val = 0xff;
#ifdef DEBUG_CIRRUS
printf("cirrus: mem_readb %06x\n", addr);
#endif
}
return val;
}
static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_vga_mem_readb(opaque, addr) << 8;
v |= cirrus_vga_mem_readb(opaque, addr + 1);
#else
v = cirrus_vga_mem_readb(opaque, addr);
v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
#endif
return v;
}
static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_vga_mem_readb(opaque, addr) << 24;
v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
v |= cirrus_vga_mem_readb(opaque, addr + 3);
#else
v = cirrus_vga_mem_readb(opaque, addr);
v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
#endif
return v;
}
static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
uint32_t mem_value)
{
CirrusVGAState *s = opaque;
unsigned bank_index;
unsigned bank_offset;
unsigned mode;
if ((s->sr[0x07] & 0x01) == 0) {
vga_mem_writeb(s, addr, mem_value);
return;
}
if (addr < 0x10000) {
if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
/* bitblt */
*s->cirrus_srcptr++ = (uint8_t) mem_value;
if (s->cirrus_srcptr == s->cirrus_srcptr_end) {
cirrus_bitblt_cputovideo_next(s);
}
} else {
/* video memory */
bank_index = addr >> 15;
bank_offset = addr & 0x7fff;
if (bank_offset < s->cirrus_bank_limit[bank_index]) {
bank_offset += s->cirrus_bank_base[bank_index];
if ((s->gr[0x0B] & 0x14) == 0x14) {
bank_offset <<= 4;
} else if (s->gr[0x0B] & 0x02) {
bank_offset <<= 3;
}
bank_offset &= s->cirrus_addr_mask;
mode = s->gr[0x05] & 0x7;
if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
*(s->vram_ptr + bank_offset) = mem_value;
cpu_physical_memory_set_dirty(s->vram_offset +
bank_offset);
} else {
if ((s->gr[0x0B] & 0x14) != 0x14) {
cirrus_mem_writeb_mode4and5_8bpp(s, mode,
bank_offset,
mem_value);
} else {
cirrus_mem_writeb_mode4and5_16bpp(s, mode,
bank_offset,
mem_value);
}
}
}
}
} else if (addr >= 0x18000 && addr < 0x18100) {
/* memory-mapped I/O */
if ((s->sr[0x17] & 0x44) == 0x04) {
cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
}
} else {
#ifdef DEBUG_CIRRUS
printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
#endif
}
}
static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
#else
cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
#endif
}
static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
#else
cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
#endif
}
static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
cirrus_vga_mem_readb,
cirrus_vga_mem_readw,
cirrus_vga_mem_readl,
};
static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
cirrus_vga_mem_writeb,
cirrus_vga_mem_writew,
cirrus_vga_mem_writel,
};
/***************************************
*
* LFB memory access
*
***************************************/
static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
uint32_t ret;
/* XXX: s->vram_size must be a power of two */
addr &= s->cirrus_addr_mask;
if (((s->sr[0x17] & 0x44) == 0x44) && ((addr & 0x1fff00) == 0x1fff00)) {
/* memory-mapped I/O */
ret = cirrus_mmio_blt_read(s, addr & 0xff);
} else if (0) {
/* XXX handle bitblt */
ret = 0xff;
} else {
/* video memory */
if ((s->gr[0x0B] & 0x14) == 0x14) {
addr <<= 4;
} else if (s->gr[0x0B] & 0x02) {
addr <<= 3;
}
addr &= s->cirrus_addr_mask;
ret = *(s->vram_ptr + addr);
}
return ret;
}
static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_linear_readb(opaque, addr) << 8;
v |= cirrus_linear_readb(opaque, addr + 1);
#else
v = cirrus_linear_readb(opaque, addr);
v |= cirrus_linear_readb(opaque, addr + 1) << 8;
#endif
return v;
}
static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_linear_readb(opaque, addr) << 24;
v |= cirrus_linear_readb(opaque, addr + 1) << 16;
v |= cirrus_linear_readb(opaque, addr + 2) << 8;
v |= cirrus_linear_readb(opaque, addr + 3);
#else
v = cirrus_linear_readb(opaque, addr);
v |= cirrus_linear_readb(opaque, addr + 1) << 8;
v |= cirrus_linear_readb(opaque, addr + 2) << 16;
v |= cirrus_linear_readb(opaque, addr + 3) << 24;
#endif
return v;
}
static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
unsigned mode;
addr &= s->cirrus_addr_mask;
if (((s->sr[0x17] & 0x44) == 0x44) && ((addr & 0x1fff00) == 0x1fff00)) {
/* memory-mapped I/O */
cirrus_mmio_blt_write(s, addr & 0xff, val);
} else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
/* bitblt */
*s->cirrus_srcptr++ = (uint8_t) val;
if (s->cirrus_srcptr == s->cirrus_srcptr_end) {
cirrus_bitblt_cputovideo_next(s);
}
} else {
/* video memory */
if ((s->gr[0x0B] & 0x14) == 0x14) {
addr <<= 4;
} else if (s->gr[0x0B] & 0x02) {
addr <<= 3;
}
addr &= s->cirrus_addr_mask;
mode = s->gr[0x05] & 0x7;
if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
*(s->vram_ptr + addr) = (uint8_t) val;
cpu_physical_memory_set_dirty(s->vram_offset + addr);
} else {
if ((s->gr[0x0B] & 0x14) != 0x14) {
cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
} else {
cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
}
}
}
}
static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
#else
cirrus_linear_writeb(opaque, addr, val & 0xff);
cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
#endif
}
static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
#else
cirrus_linear_writeb(opaque, addr, val & 0xff);
cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
#endif
}
static CPUReadMemoryFunc *cirrus_linear_read[3] = {
cirrus_linear_readb,
cirrus_linear_readw,
cirrus_linear_readl,
};
static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
cirrus_linear_writeb,
cirrus_linear_writew,
cirrus_linear_writel,
};
/***************************************
*
* memory-mapped I/O access
*
***************************************/
static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
addr &= CIRRUS_PNPMMIO_SIZE - 1;
/* ??? Does CLGD5430 have memory-mapped VGA registers ??? */
return (addr >= 0x100) ?
cirrus_mmio_blt_read(s, addr - 0x100) :
cirrus_mmio_vga_read(s, addr);
}
static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_mmio_readb(opaque, addr) << 8;
v |= cirrus_mmio_readb(opaque, addr + 1);
#else
v = cirrus_mmio_readb(opaque, addr);
v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
#endif
return v;
}
static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
{
uint32_t v;
#ifdef TARGET_WORDS_BIGENDIAN
v = cirrus_mmio_readb(opaque, addr) << 24;
v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
v |= cirrus_mmio_readb(opaque, addr + 3);
#else
v = cirrus_mmio_readb(opaque, addr);
v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
#endif
return v;
}
static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
CirrusVGAState *s = (CirrusVGAState *) opaque;
addr &= CIRRUS_PNPMMIO_SIZE - 1;
/* ??? Does CLGD5430 have memory-mapped VGA registers ??? */
if (addr >= 0x100) {
cirrus_mmio_blt_write(s, addr - 0x100, val);
} else {
cirrus_mmio_vga_write(s, addr, val);
}
}
static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
#else
cirrus_mmio_writeb(opaque, addr, val & 0xff);
cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
#endif
}
static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
#else
cirrus_mmio_writeb(opaque, addr, val & 0xff);
cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
#endif
}
static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
cirrus_mmio_readb,
cirrus_mmio_readw,
cirrus_mmio_readl,
};
static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
cirrus_mmio_writeb,
cirrus_mmio_writew,
cirrus_mmio_writel,
};
/* I/O ports */
static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
{
CirrusVGAState *s = opaque;
int val, index;
/* check port range access depending on color/monochrome mode */
if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
|| (addr >= 0x3d0 && addr <= 0x3df
&& !(s->msr & MSR_COLOR_EMULATION))) {
val = 0xff;
} else {
switch (addr) {
case 0x3c0:
if (s->ar_flip_flop == 0) {
val = s->ar_index;
} else {
val = 0;
}
break;
case 0x3c1:
index = s->ar_index & 0x1f;
if (index < 21)
val = s->ar[index];
else
val = 0;
break;
case 0x3c2:
val = s->st00;
break;
case 0x3c4:
val = s->sr_index;
break;
case 0x3c5:
if (cirrus_hook_read_sr(s, s->sr_index, &val))
break;
val = s->sr[s->sr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
#endif
break;
case 0x3c6:
cirrus_read_hidden_dac(s, &val);
break;
case 0x3c7:
val = s->dac_state;
break;
case 0x3c9:
if (cirrus_hook_read_palette(s, &val))
break;
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->fcr;
break;
case 0x3cc:
val = s->msr;
break;
case 0x3ce:
val = s->gr_index;
break;
case 0x3cf:
if (cirrus_hook_read_gr(s, s->gr_index, &val))
break;
val = s->gr[s->gr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
#endif
break;
case 0x3b4:
case 0x3d4:
val = s->cr_index;
break;
case 0x3b5:
case 0x3d5:
if (cirrus_hook_read_cr(s, s->cr_index, &val))
break;
val = s->cr[s->cr_index];
#ifdef DEBUG_VGA_REG
printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
#endif
#ifdef DEBUG_S3
if (s->cr_index >= 0x20)
printf("S3: CR read index=0x%x val=0x%x\n",
s->cr_index, val);
#endif
break;
case 0x3ba:
case 0x3da:
/* just toggle to fool polling */
s->st01 ^= ST01_V_RETRACE | ST01_DISP_ENABLE;
val = s->st01;
s->ar_flip_flop = 0;
break;
default:
val = 0x00;
break;
}
}
#if defined(DEBUG_VGA)
printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
#endif
return val;
}
static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
CirrusVGAState *s = opaque;
int index;
/* check port range access depending on color/monochrome mode */
if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
|| (addr >= 0x3d0 && addr <= 0x3df
&& !(s->msr & MSR_COLOR_EMULATION)))
return;
#ifdef DEBUG_VGA
printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
#endif
switch (addr) {
case 0x3c0:
if (s->ar_flip_flop == 0) {
val &= 0x3f;
s->ar_index = val;
} else {
index = s->ar_index & 0x1f;
switch (index) {
case 0x00 ... 0x0f:
s->ar[index] = val & 0x3f;
break;
case 0x10:
s->ar[index] = val & ~0x10;
break;
case 0x11:
s->ar[index] = val;
break;
case 0x12:
s->ar[index] = val & ~0xc0;
break;
case 0x13:
s->ar[index] = val & ~0xf0;
break;
case 0x14:
s->ar[index] = val & ~0xf0;
break;
default:
break;
}
}
s->ar_flip_flop ^= 1;
break;
case 0x3c2:
s->msr = val & ~0x10;
break;
case 0x3c4:
s->sr_index = val;
break;
case 0x3c5:
if (cirrus_hook_write_sr(s, s->sr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
#endif
s->sr[s->sr_index] = val & sr_mask[s->sr_index];
break;
case 0x3c6:
cirrus_write_hidden_dac(s, val);
break;
case 0x3c7:
s->dac_read_index = val;
s->dac_sub_index = 0;
s->dac_state = 3;
break;
case 0x3c8:
s->dac_write_index = val;
s->dac_sub_index = 0;
s->dac_state = 0;
break;
case 0x3c9:
if (cirrus_hook_write_palette(s, val))
break;
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->gr_index = val;
break;
case 0x3cf:
if (cirrus_hook_write_gr(s, s->gr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
#endif
s->gr[s->gr_index] = val & gr_mask[s->gr_index];
break;
case 0x3b4:
case 0x3d4:
s->cr_index = val;
break;
case 0x3b5:
case 0x3d5:
if (cirrus_hook_write_cr(s, s->cr_index, val))
break;
#ifdef DEBUG_VGA_REG
printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
#endif
/* handle CR0-7 protection */
if ((s->cr[11] & 0x80) && s->cr_index <= 7) {
/* can always write bit 4 of CR7 */
if (s->cr_index == 7)
s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
return;
}
switch (s->cr_index) {
case 0x01: /* horizontal display end */
case 0x07:
case 0x09:
case 0x0c:
case 0x0d:
case 0x12: /* veritcal display end */
s->cr[s->cr_index] = val;
break;
default:
s->cr[s->cr_index] = val;
break;
}
break;
case 0x3ba:
case 0x3da:
s->fcr = val & 0x10;
break;
}
}
/***************************************
*
* initialize
*
***************************************/
static void cirrus_init_common(CirrusVGAState * s)
{
int vga_io_memory;
register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
cirrus_vga_mem_write, s);
cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
vga_io_memory);
s->sr[0x06] = 0x0f;
s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
s->sr[0x1F] = 0x22; // MemClock
s->cr[0x27] = CIRRUS_ID_CLGD5430;
s->cirrus_hidden_dac_lockindex = 5;
s->cirrus_hidden_dac_data = 0;
/* I/O handler for LFB */
s->cirrus_linear_io_addr =
cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write,
s);
/* I/O handler for memory-mapped I/O */
s->cirrus_mmio_io_addr =
cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
/* XXX: s->vram_size must be a power of two */
s->cirrus_addr_mask = s->vram_size - 1;
s->get_bpp = cirrus_get_bpp;
s->get_offsets = cirrus_get_offsets;
}
/***************************************
*
* ISA bus support
*
***************************************/
void isa_cirrus_vga_init(DisplayState *ds, uint8_t *vga_ram_base,
unsigned long vga_ram_offset, int vga_ram_size)
{
CirrusVGAState *s;
s = qemu_mallocz(sizeof(CirrusVGAState));
vga_common_init((VGAState *)s,
ds, vga_ram_base, vga_ram_offset, vga_ram_size);
cirrus_init_common(s);
s->sr[0x17] = CIRRUS_BUSTYPE_ISA;
/* XXX ISA-LFB support */
}
/***************************************
*
* PCI bus support
*
***************************************/
static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
uint32_t addr, uint32_t size, int type)
{
CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
cpu_register_physical_memory(addr, s->vram_size,
s->cirrus_linear_io_addr);
}
static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
uint32_t addr, uint32_t size, int type)
{
CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
s->cirrus_mmio_io_addr);
}
void pci_cirrus_vga_init(DisplayState *ds, uint8_t *vga_ram_base,
unsigned long vga_ram_offset, int vga_ram_size)
{
PCICirrusVGAState *d;
uint8_t *pci_conf;
CirrusVGAState *s;
/* setup PCI configuration registers */
d = (PCICirrusVGAState *)pci_register_device("Cirrus VGA",
sizeof(PCICirrusVGAState),
0, -1, NULL, NULL);
pci_conf = d->dev.config;
pci_conf[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS & 0xff);
pci_conf[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS >> 8);
pci_conf[0x02] = (uint8_t) (PCI_DEVICE_CLGD5430 & 0xff);
pci_conf[0x03] = (uint8_t) (PCI_DEVICE_CLGD5430 >> 8);
pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
pci_conf[0x0a] = PCI_CLASS_SUB_VGA;
pci_conf[0x0b] = PCI_CLASS_BASE_DISPLAY;
pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
/* setup VGA */
s = &d->cirrus_vga;
vga_common_init((VGAState *)s,
ds, vga_ram_base, vga_ram_offset, vga_ram_size);
cirrus_init_common(s);
s->sr[0x17] = CIRRUS_BUSTYPE_PCI;
/* setup memory space */
/* memory #0 LFB */
/* memory #1 memory-mapped I/O */
/* XXX: s->vram_size must be a power of two */
pci_register_io_region((PCIDevice *)d, 0, s->vram_size,
PCI_ADDRESS_SPACE_MEM, cirrus_pci_lfb_map);
pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
/* XXX: ROM BIOS */
}
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