/* * QEMU Cirrus CLGD 54xx VGA Emulator. * * Copyright (c) 2004 Fabrice Bellard * Copyright (c) 2004 Makoto Suzuki (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. */ /* * Reference: Finn Thogersons' VGADOC4b * available at http://home.worldonline.dk/~finth/ */ #include "vl.h" #include "vga_int.h" //#define DEBUG_CIRRUS /*************************************** * * 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 { VGA_STATE_COMMON 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->cirrus_shadow_gr0; colors[1] = s->cirrus_shadow_gr1; 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->cirrus_shadow_gr0; colors[0][1] = s->gr[0x10]; colors[1][0] = s->cirrus_shadow_gr1; 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->cirrus_shadow_gr0; colors[0][1] = s->gr[0x10]; colors[0][2] = s->gr[0x12]; colors[1][0] = s->cirrus_shadow_gr1; 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->cirrus_shadow_gr0; colors[0][1] = s->gr[0x10]; colors[0][2] = s->gr[0x12]; colors[0][3] = s->gr[0x14]; colors[1][0] = s->cirrus_shadow_gr1; 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) << 4); 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 = 0; } 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 0x10: case 0x30: case 0x50: case 0x70: // Graphics Cursor X case 0x90: case 0xb0: case 0xd0: case 0xf0: // Graphics Cursor X *reg_value = s->sr[0x10]; break; case 0x11: case 0x31: case 0x51: case 0x71: // Graphics Cursor Y case 0x91: case 0xb1: case 0xd1: *reg_value = s->sr[0x11]; 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 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 0x00: // Standard VGA, BGCOLOR 0x000000ff *reg_value = s->cirrus_shadow_gr0; return CIRRUS_HOOK_HANDLED; case 0x01: // Standard VGA, FGCOLOR 0x000000ff *reg_value = s->cirrus_shadow_gr1; return CIRRUS_HOOK_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 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->cirrus_shadow_gr0 = reg_value; return CIRRUS_HOOK_NOT_HANDLED; case 0x01: // Standard VGA, FGCOLOR 0x000000ff s->cirrus_shadow_gr1 = 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; } } /*************************************** * * 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->cirrus_shadow_gr1; } else if (mode == 5) { *dst++ = s->cirrus_shadow_gr0; } 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->cirrus_shadow_gr1; *dst++ = s->gr[0x11]; } else if (mode == 5) { *dst++ = s->cirrus_shadow_gr0; *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); } addr &= 0x1ffff; 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; } addr &= 0x1ffff; 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, }; /* 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 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; } } /*************************************** * * 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; if (addr >= 0x100) { return cirrus_mmio_blt_read(s, addr - 0x100); } else { return vga_ioport_read(s, addr + 0x3c0); } } 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; if (addr >= 0x100) { cirrus_mmio_blt_write(s, addr - 0x100, val); } else { vga_ioport_write(s, addr + 0x3c0, 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, }; /*************************************** * * 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 */ }