/* * 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: * * http://web.archive.org/web/20021019054927/http://home.worldonline.dk/finth/ * * VGADOC4b.ZIP content available at: * * https://pdos.csail.mit.edu/6.828/2005/readings/hardware/vgadoc */ #include "qemu/osdep.h" #include "qemu/module.h" #include "qemu/units.h" #include "qapi/error.h" #include "trace.h" #include "hw/hw.h" #include "hw/pci/pci.h" #include "ui/pixel_ops.h" #include "cirrus_vga_internal.h" /* * TODO: * - destination write mask support not complete (bits 5..7) * - optimize linear mappings * - optimize bitblt functions */ //#define DEBUG_CIRRUS //#define DEBUG_BITBLT /*************************************** * * definitions * ***************************************/ // 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 #define CIRRUS_BLT_AUTOSTART 0x80 // 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 #define CIRRUS_ROP_NOP_INDEX 2 #define CIRRUS_ROP_SRC_INDEX 5 // control 0x33 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01 // 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 #define CIRRUS_PNPMMIO_SIZE 0x1000 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s, uint32_t dstaddr, int dst_pitch, int width, int height); typedef struct PCICirrusVGAState { PCIDevice dev; CirrusVGAState cirrus_vga; } PCICirrusVGAState; #define TYPE_PCI_CIRRUS_VGA "cirrus-vga" #define PCI_CIRRUS_VGA(obj) \ OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA) static uint8_t rop_to_index[256]; /*************************************** * * prototypes. * ***************************************/ static void cirrus_bitblt_reset(CirrusVGAState *s); static void cirrus_update_memory_access(CirrusVGAState *s); /*************************************** * * raster operations * ***************************************/ static bool blit_region_is_unsafe(struct CirrusVGAState *s, int32_t pitch, int32_t addr) { if (!pitch) { return true; } if (pitch < 0) { int64_t min = addr + ((int64_t)s->cirrus_blt_height - 1) * pitch - s->cirrus_blt_width; if (min < -1 || addr >= s->vga.vram_size) { return true; } } else { int64_t max = addr + ((int64_t)s->cirrus_blt_height-1) * pitch + s->cirrus_blt_width; if (max > s->vga.vram_size) { return true; } } return false; } static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only) { /* should be the case, see cirrus_bitblt_start */ assert(s->cirrus_blt_width > 0); assert(s->cirrus_blt_height > 0); if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) { return true; } if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch, s->cirrus_blt_dstaddr)) { return true; } if (dst_only) { return false; } if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch, s->cirrus_blt_srcaddr)) { return true; } return false; } static void cirrus_bitblt_rop_nop(CirrusVGAState *s, uint32_t dstaddr, uint32_t srcaddr, int dstpitch,int srcpitch, int bltwidth,int bltheight) { } static void cirrus_bitblt_fill_nop(CirrusVGAState *s, uint32_t dstaddr, int dstpitch, int bltwidth,int bltheight) { } static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr) { if (s->cirrus_srccounter) { /* cputovideo */ return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)]; } else { /* videotovideo */ return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask]; } } static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr) { uint16_t *src; if (s->cirrus_srccounter) { /* cputovideo */ src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1]; } else { /* videotovideo */ src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1]; } return *src; } static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr) { uint32_t *src; if (s->cirrus_srccounter) { /* cputovideo */ src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3]; } else { /* videotovideo */ src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3]; } return *src; } #define ROP_NAME 0 #define ROP_FN(d, s) 0 #include "cirrus_vga_rop.h" #define ROP_NAME src_and_dst #define ROP_FN(d, s) (s) & (d) #include "cirrus_vga_rop.h" #define ROP_NAME src_and_notdst #define ROP_FN(d, s) (s) & (~(d)) #include "cirrus_vga_rop.h" #define ROP_NAME notdst #define ROP_FN(d, s) ~(d) #include "cirrus_vga_rop.h" #define ROP_NAME src #define ROP_FN(d, s) s #include "cirrus_vga_rop.h" #define ROP_NAME 1 #define ROP_FN(d, s) ~0 #include "cirrus_vga_rop.h" #define ROP_NAME notsrc_and_dst #define ROP_FN(d, s) (~(s)) & (d) #include "cirrus_vga_rop.h" #define ROP_NAME src_xor_dst #define ROP_FN(d, s) (s) ^ (d) #include "cirrus_vga_rop.h" #define ROP_NAME src_or_dst #define ROP_FN(d, s) (s) | (d) #include "cirrus_vga_rop.h" #define ROP_NAME notsrc_or_notdst #define ROP_FN(d, s) (~(s)) | (~(d)) #include "cirrus_vga_rop.h" #define ROP_NAME src_notxor_dst #define ROP_FN(d, s) ~((s) ^ (d)) #include "cirrus_vga_rop.h" #define ROP_NAME src_or_notdst #define ROP_FN(d, s) (s) | (~(d)) #include "cirrus_vga_rop.h" #define ROP_NAME notsrc #define ROP_FN(d, s) (~(s)) #include "cirrus_vga_rop.h" #define ROP_NAME notsrc_or_dst #define ROP_FN(d, s) (~(s)) | (d) #include "cirrus_vga_rop.h" #define ROP_NAME notsrc_and_notdst #define ROP_FN(d, s) (~(s)) & (~(d)) #include "cirrus_vga_rop.h" static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = { cirrus_bitblt_rop_fwd_0, cirrus_bitblt_rop_fwd_src_and_dst, cirrus_bitblt_rop_nop, cirrus_bitblt_rop_fwd_src_and_notdst, cirrus_bitblt_rop_fwd_notdst, cirrus_bitblt_rop_fwd_src, cirrus_bitblt_rop_fwd_1, cirrus_bitblt_rop_fwd_notsrc_and_dst, cirrus_bitblt_rop_fwd_src_xor_dst, cirrus_bitblt_rop_fwd_src_or_dst, cirrus_bitblt_rop_fwd_notsrc_or_notdst, cirrus_bitblt_rop_fwd_src_notxor_dst, cirrus_bitblt_rop_fwd_src_or_notdst, cirrus_bitblt_rop_fwd_notsrc, cirrus_bitblt_rop_fwd_notsrc_or_dst, cirrus_bitblt_rop_fwd_notsrc_and_notdst, }; static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = { cirrus_bitblt_rop_bkwd_0, cirrus_bitblt_rop_bkwd_src_and_dst, cirrus_bitblt_rop_nop, cirrus_bitblt_rop_bkwd_src_and_notdst, cirrus_bitblt_rop_bkwd_notdst, cirrus_bitblt_rop_bkwd_src, cirrus_bitblt_rop_bkwd_1, cirrus_bitblt_rop_bkwd_notsrc_and_dst, cirrus_bitblt_rop_bkwd_src_xor_dst, cirrus_bitblt_rop_bkwd_src_or_dst, cirrus_bitblt_rop_bkwd_notsrc_or_notdst, cirrus_bitblt_rop_bkwd_src_notxor_dst, cirrus_bitblt_rop_bkwd_src_or_notdst, cirrus_bitblt_rop_bkwd_notsrc, cirrus_bitblt_rop_bkwd_notsrc_or_dst, cirrus_bitblt_rop_bkwd_notsrc_and_notdst, }; #define TRANSP_ROP(name) {\ name ## _8,\ name ## _16,\ } #define TRANSP_NOP(func) {\ func,\ func,\ } static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = { TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst), TRANSP_NOP(cirrus_bitblt_rop_nop), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst), TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst), }; static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = { TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst), TRANSP_NOP(cirrus_bitblt_rop_nop), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst), TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst), }; #define ROP2(name) {\ name ## _8,\ name ## _16,\ name ## _24,\ name ## _32,\ } #define ROP_NOP2(func) {\ func,\ func,\ func,\ func,\ } static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = { ROP2(cirrus_patternfill_0), ROP2(cirrus_patternfill_src_and_dst), ROP_NOP2(cirrus_bitblt_rop_nop), ROP2(cirrus_patternfill_src_and_notdst), ROP2(cirrus_patternfill_notdst), ROP2(cirrus_patternfill_src), ROP2(cirrus_patternfill_1), ROP2(cirrus_patternfill_notsrc_and_dst), ROP2(cirrus_patternfill_src_xor_dst), ROP2(cirrus_patternfill_src_or_dst), ROP2(cirrus_patternfill_notsrc_or_notdst), ROP2(cirrus_patternfill_src_notxor_dst), ROP2(cirrus_patternfill_src_or_notdst), ROP2(cirrus_patternfill_notsrc), ROP2(cirrus_patternfill_notsrc_or_dst), ROP2(cirrus_patternfill_notsrc_and_notdst), }; static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = { ROP2(cirrus_colorexpand_transp_0), ROP2(cirrus_colorexpand_transp_src_and_dst), ROP_NOP2(cirrus_bitblt_rop_nop), ROP2(cirrus_colorexpand_transp_src_and_notdst), ROP2(cirrus_colorexpand_transp_notdst), ROP2(cirrus_colorexpand_transp_src), ROP2(cirrus_colorexpand_transp_1), ROP2(cirrus_colorexpand_transp_notsrc_and_dst), ROP2(cirrus_colorexpand_transp_src_xor_dst), ROP2(cirrus_colorexpand_transp_src_or_dst), ROP2(cirrus_colorexpand_transp_notsrc_or_notdst), ROP2(cirrus_colorexpand_transp_src_notxor_dst), ROP2(cirrus_colorexpand_transp_src_or_notdst), ROP2(cirrus_colorexpand_transp_notsrc), ROP2(cirrus_colorexpand_transp_notsrc_or_dst), ROP2(cirrus_colorexpand_transp_notsrc_and_notdst), }; static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = { ROP2(cirrus_colorexpand_0), ROP2(cirrus_colorexpand_src_and_dst), ROP_NOP2(cirrus_bitblt_rop_nop), ROP2(cirrus_colorexpand_src_and_notdst), ROP2(cirrus_colorexpand_notdst), ROP2(cirrus_colorexpand_src), ROP2(cirrus_colorexpand_1), ROP2(cirrus_colorexpand_notsrc_and_dst), ROP2(cirrus_colorexpand_src_xor_dst), ROP2(cirrus_colorexpand_src_or_dst), ROP2(cirrus_colorexpand_notsrc_or_notdst), ROP2(cirrus_colorexpand_src_notxor_dst), ROP2(cirrus_colorexpand_src_or_notdst), ROP2(cirrus_colorexpand_notsrc), ROP2(cirrus_colorexpand_notsrc_or_dst), ROP2(cirrus_colorexpand_notsrc_and_notdst), }; static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = { ROP2(cirrus_colorexpand_pattern_transp_0), ROP2(cirrus_colorexpand_pattern_transp_src_and_dst), ROP_NOP2(cirrus_bitblt_rop_nop), ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst), ROP2(cirrus_colorexpand_pattern_transp_notdst), ROP2(cirrus_colorexpand_pattern_transp_src), ROP2(cirrus_colorexpand_pattern_transp_1), ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst), ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst), ROP2(cirrus_colorexpand_pattern_transp_src_or_dst), ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst), ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst), ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst), ROP2(cirrus_colorexpand_pattern_transp_notsrc), ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst), ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst), }; static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = { ROP2(cirrus_colorexpand_pattern_0), ROP2(cirrus_colorexpand_pattern_src_and_dst), ROP_NOP2(cirrus_bitblt_rop_nop), ROP2(cirrus_colorexpand_pattern_src_and_notdst), ROP2(cirrus_colorexpand_pattern_notdst), ROP2(cirrus_colorexpand_pattern_src), ROP2(cirrus_colorexpand_pattern_1), ROP2(cirrus_colorexpand_pattern_notsrc_and_dst), ROP2(cirrus_colorexpand_pattern_src_xor_dst), ROP2(cirrus_colorexpand_pattern_src_or_dst), ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst), ROP2(cirrus_colorexpand_pattern_src_notxor_dst), ROP2(cirrus_colorexpand_pattern_src_or_notdst), ROP2(cirrus_colorexpand_pattern_notsrc), ROP2(cirrus_colorexpand_pattern_notsrc_or_dst), ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst), }; static const cirrus_fill_t cirrus_fill[16][4] = { ROP2(cirrus_fill_0), ROP2(cirrus_fill_src_and_dst), ROP_NOP2(cirrus_bitblt_fill_nop), ROP2(cirrus_fill_src_and_notdst), ROP2(cirrus_fill_notdst), ROP2(cirrus_fill_src), ROP2(cirrus_fill_1), ROP2(cirrus_fill_notsrc_and_dst), ROP2(cirrus_fill_src_xor_dst), ROP2(cirrus_fill_src_or_dst), ROP2(cirrus_fill_notsrc_or_notdst), ROP2(cirrus_fill_src_notxor_dst), ROP2(cirrus_fill_src_or_notdst), ROP2(cirrus_fill_notsrc), ROP2(cirrus_fill_notsrc_or_dst), ROP2(cirrus_fill_notsrc_and_notdst), }; static inline void cirrus_bitblt_fgcol(CirrusVGAState *s) { unsigned int color; switch (s->cirrus_blt_pixelwidth) { case 1: s->cirrus_blt_fgcol = s->cirrus_shadow_gr1; break; case 2: color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8); s->cirrus_blt_fgcol = le16_to_cpu(color); break; case 3: s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16); break; default: case 4: color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24); s->cirrus_blt_fgcol = le32_to_cpu(color); break; } } static inline void cirrus_bitblt_bgcol(CirrusVGAState *s) { unsigned int color; switch (s->cirrus_blt_pixelwidth) { case 1: s->cirrus_blt_bgcol = s->cirrus_shadow_gr0; break; case 2: color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8); s->cirrus_blt_bgcol = le16_to_cpu(color); break; case 3: s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16); break; default: case 4: color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24); s->cirrus_blt_bgcol = le32_to_cpu(color); 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; if (off_pitch < 0) { off_begin -= bytesperline - 1; } for (y = 0; y < lines; y++) { off_cur = off_begin; off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1; assert(off_cur_end >= off_cur); memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur); off_begin += off_pitch; } } static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s) { uint32_t patternsize; bool videosrc = !s->cirrus_srccounter; if (videosrc) { switch (s->vga.get_bpp(&s->vga)) { case 8: patternsize = 64; break; case 15: case 16: patternsize = 128; break; case 24: case 32: default: patternsize = 256; break; } s->cirrus_blt_srcaddr &= ~(patternsize - 1); if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) { return 0; } } if (blit_is_unsafe(s, true)) { return 0; } (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr, videosrc ? s->cirrus_blt_srcaddr : 0, s->cirrus_blt_dstpitch, 0, 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; } /* fill */ static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop) { cirrus_fill_t rop_func; if (blit_is_unsafe(s, true)) { return 0; } rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; rop_func(s, s->cirrus_blt_dstaddr, s->cirrus_blt_dstpitch, 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); cirrus_bitblt_reset(s); return 1; } /*************************************** * * bitblt (video-to-video) * ***************************************/ static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s) { return cirrus_bitblt_common_patterncopy(s); } static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h) { int sx = 0, sy = 0; int dx = 0, dy = 0; int depth = 0; int notify = 0; /* make sure to only copy if it's a plain copy ROP */ if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src || *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) { int width, height; depth = s->vga.get_bpp(&s->vga) / 8; if (!depth) { return 0; } s->vga.get_resolution(&s->vga, &width, &height); /* extra x, y */ sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth; sy = (src / ABS(s->cirrus_blt_srcpitch)); dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth; dy = (dst / ABS(s->cirrus_blt_dstpitch)); /* normalize width */ w /= depth; /* if we're doing a backward copy, we have to adjust our x/y to be the upper left corner (instead of the lower right corner) */ if (s->cirrus_blt_dstpitch < 0) { sx -= (s->cirrus_blt_width / depth) - 1; dx -= (s->cirrus_blt_width / depth) - 1; sy -= s->cirrus_blt_height - 1; dy -= s->cirrus_blt_height - 1; } /* are we in the visible portion of memory? */ if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 && (sx + w) <= width && (sy + h) <= height && (dx + w) <= width && (dy + h) <= height) { notify = 1; } } (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr, s->cirrus_blt_srcaddr, s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch, s->cirrus_blt_width, s->cirrus_blt_height); if (notify) { dpy_gfx_update(s->vga.con, dx, dy, s->cirrus_blt_width / depth, s->cirrus_blt_height); } /* we don't have to notify the display that this portion has changed since qemu_console_copy implies this */ cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, s->cirrus_blt_dstpitch, s->cirrus_blt_width, s->cirrus_blt_height); return 1; } static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s) { if (blit_is_unsafe(s, false)) return 0; return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr, s->cirrus_blt_srcaddr - s->vga.start_addr, s->cirrus_blt_width, s->cirrus_blt_height); } /*************************************** * * bitblt (cpu-to-video) * ***************************************/ static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s) { int copy_count; uint8_t *end_ptr; if (s->cirrus_srccounter > 0) { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { cirrus_bitblt_common_patterncopy(s); the_end: s->cirrus_srccounter = 0; cirrus_bitblt_reset(s); } else { /* at least one scan line */ do { (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr, 0, 0, 0, s->cirrus_blt_width, 1); cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0, s->cirrus_blt_width, 1); s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch; s->cirrus_srccounter -= s->cirrus_blt_srcpitch; if (s->cirrus_srccounter <= 0) goto the_end; /* more bytes than needed can be transferred because of word alignment, so we keep them for the next line */ /* XXX: keep alignment to speed up transfer */ end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; copy_count = s->cirrus_srcptr_end - end_ptr; memmove(s->cirrus_bltbuf, end_ptr, copy_count); s->cirrus_srcptr = s->cirrus_bltbuf + copy_count; s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; } while (s->cirrus_srcptr >= s->cirrus_srcptr_end); } } } /*************************************** * * bitblt wrapper * ***************************************/ static void cirrus_bitblt_reset(CirrusVGAState * s) { int need_update; s->vga.gr[0x31] &= ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED); need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0] || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0]; s->cirrus_srcptr = &s->cirrus_bltbuf[0]; s->cirrus_srcptr_end = &s->cirrus_bltbuf[0]; s->cirrus_srccounter = 0; if (!need_update) return; cirrus_update_memory_access(s); } static int cirrus_bitblt_cputovideo(CirrusVGAState * s) { int w; if (blit_is_unsafe(s, true)) { return 0; } 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_blt_srcpitch = 8; } else { /* XXX: check for 24 bpp */ s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth; } s->cirrus_srccounter = s->cirrus_blt_srcpitch; } else { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) { w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth; if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY) s->cirrus_blt_srcpitch = ((w + 31) >> 5); else s->cirrus_blt_srcpitch = ((w + 7) >> 3); } else { /* always align input size to 32 bits */ s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3; } s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height; } /* the blit_is_unsafe call above should catch this */ assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE); s->cirrus_srcptr = s->cirrus_bltbuf; s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch; cirrus_update_memory_access(s); return 1; } static int cirrus_bitblt_videotocpu(CirrusVGAState * s) { /* XXX */ #ifdef DEBUG_BITBLT 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; if (!s->enable_blitter) { goto bitblt_ignore; } s->vga.gr[0x31] |= CIRRUS_BLT_BUSY; s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1; s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1; s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8)); s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8)); s->cirrus_blt_dstaddr = (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16)); s->cirrus_blt_srcaddr = (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16)); s->cirrus_blt_mode = s->vga.gr[0x30]; s->cirrus_blt_modeext = s->vga.gr[0x33]; blt_rop = s->vga.gr[0x32]; s->cirrus_blt_dstaddr &= s->cirrus_addr_mask; s->cirrus_blt_srcaddr &= s->cirrus_addr_mask; #ifdef DEBUG_BITBLT printf("rop=0x%02x mode=0x%02x modeext=0x%02x w=%d h=%d dpitch=%d spitch=%d daddr=0x%08x saddr=0x%08x writemask=0x%02x\n", blt_rop, s->cirrus_blt_mode, s->cirrus_blt_modeext, s->cirrus_blt_width, s->cirrus_blt_height, s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch, s->cirrus_blt_dstaddr, s->cirrus_blt_srcaddr, s->vga.gr[0x2f]); #endif 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_BITBLT 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_BITBLT printf("cirrus: bitblt - memory-to-memory copy is requested\n"); #endif goto bitblt_ignore; } if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) && (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST | CIRRUS_BLTMODE_TRANSPARENTCOMP | CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) == (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) { cirrus_bitblt_fgcol(s); cirrus_bitblt_solidfill(s, blt_rop); } else { if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND | CIRRUS_BLTMODE_PATTERNCOPY)) == CIRRUS_BLTMODE_COLOREXPAND) { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) cirrus_bitblt_bgcol(s); else cirrus_bitblt_fgcol(s); s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } else { cirrus_bitblt_fgcol(s); cirrus_bitblt_bgcol(s); s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) cirrus_bitblt_bgcol(s); else cirrus_bitblt_fgcol(s); s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } else { cirrus_bitblt_fgcol(s); cirrus_bitblt_bgcol(s); s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } } else { s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } } else { if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) { if (s->cirrus_blt_pixelwidth > 2) { printf("src transparent without colorexpand must be 8bpp or 16bpp\n"); 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_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } else { s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1]; } } else { 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_bkwd_rop[rop_to_index[blt_rop]]; } else { s->cirrus_rop = cirrus_fwd_rop[rop_to_index[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->vga.gr[0x31]; s->vga.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)) { cirrus_bitblt_start(s); } } /*************************************** * * basic parameters * ***************************************/ static void cirrus_get_offsets(VGACommonState *s1, uint32_t *pline_offset, uint32_t *pstart_addr, uint32_t *pline_compare) { CirrusVGAState * s = container_of(s1, CirrusVGAState, vga); uint32_t start_addr, line_offset, line_compare; line_offset = s->vga.cr[0x13] | ((s->vga.cr[0x1b] & 0x10) << 4); line_offset <<= 3; *pline_offset = line_offset; start_addr = (s->vga.cr[0x0c] << 8) | s->vga.cr[0x0d] | ((s->vga.cr[0x1b] & 0x01) << 16) | ((s->vga.cr[0x1b] & 0x0c) << 15) | ((s->vga.cr[0x1d] & 0x80) << 12); *pstart_addr = start_addr; line_compare = s->vga.cr[0x18] | ((s->vga.cr[0x07] & 0x10) << 4) | ((s->vga.cr[0x09] & 0x40) << 3); *pline_compare = line_compare; } 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(VGACommonState *s1) { CirrusVGAState * s = container_of(s1, CirrusVGAState, vga); uint32_t ret = 8; if ((s->vga.sr[0x07] & 0x01) != 0) { /* Cirrus SVGA */ switch (s->vga.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->vga.sr[0x7]); #endif ret = 8; break; } } else { /* VGA */ ret = 0; } return ret; } static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight) { int width, height; width = (s->cr[0x01] + 1) * 8; height = s->cr[0x12] | ((s->cr[0x07] & 0x02) << 7) | ((s->cr[0x07] & 0x40) << 3); height = (height + 1); /* interlace support */ if (s->cr[0x1a] & 0x01) height = height * 2; *pwidth = width; *pheight = height; } /*************************************** * * bank memory * ***************************************/ static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index) { unsigned offset; unsigned limit; if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */ offset = s->vga.gr[0x09 + bank_index]; else /* single bank */ offset = s->vga.gr[0x09]; if ((s->vga.gr[0x0b] & 0x20) != 0) offset <<= 14; else offset <<= 12; if (s->real_vram_size <= offset) limit = 0; else limit = s->real_vram_size - offset; if (((s->vga.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_vga_read_sr(CirrusVGAState * s) { switch (s->vga.sr_index) { case 0x00: // Standard VGA case 0x01: // Standard VGA case 0x02: // Standard VGA case 0x03: // Standard VGA case 0x04: // Standard VGA return s->vga.sr[s->vga.sr_index]; case 0x06: // Unlock Cirrus extensions return s->vga.sr[s->vga.sr_index]; case 0x10: case 0x30: case 0x50: case 0x70: // Graphics Cursor X case 0x90: case 0xb0: case 0xd0: case 0xf0: // Graphics Cursor X return s->vga.sr[0x10]; case 0x11: case 0x31: case 0x51: case 0x71: // Graphics Cursor Y case 0x91: case 0xb1: case 0xd1: case 0xf1: // Graphics Cursor Y return s->vga.sr[0x11]; 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 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", s->vga.sr_index); #endif return s->vga.sr[s->vga.sr_index]; default: #ifdef DEBUG_CIRRUS printf("cirrus: inport sr_index %02x\n", s->vga.sr_index); #endif return 0xff; break; } } static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val) { switch (s->vga.sr_index) { case 0x00: // Standard VGA case 0x01: // Standard VGA case 0x02: // Standard VGA case 0x03: // Standard VGA case 0x04: // Standard VGA s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index]; if (s->vga.sr_index == 1) s->vga.update_retrace_info(&s->vga); break; case 0x06: // Unlock Cirrus extensions val &= 0x17; if (val == 0x12) { s->vga.sr[s->vga.sr_index] = 0x12; } else { s->vga.sr[s->vga.sr_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->vga.sr[0x10] = val; s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5); break; case 0x11: case 0x31: case 0x51: case 0x71: // Graphics Cursor Y case 0x91: case 0xb1: case 0xd1: case 0xf1: // Graphics Cursor Y s->vga.sr[0x11] = val; s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5); break; case 0x07: // Extended Sequencer Mode cirrus_update_memory_access(s); /* fall through */ 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 0x13: // Graphics Cursor Pattern Address case 0x14: // Scratch Register 2 case 0x15: // Scratch Register 3 case 0x16: // Performance Tuning Register 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->vga.sr[s->vga.sr_index] = val; #ifdef DEBUG_CIRRUS printf("cirrus: handled outport sr_index %02x, sr_value %02x\n", s->vga.sr_index, val); #endif break; case 0x12: // Graphics Cursor Attribute s->vga.sr[0x12] = val; s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW); #ifdef DEBUG_CIRRUS printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n", val, s->vga.force_shadow); #endif break; case 0x17: // Configuration Readback and Extended Control s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38) | (val & 0xc7); cirrus_update_memory_access(s); break; default: #ifdef DEBUG_CIRRUS printf("cirrus: outport sr_index %02x, sr_value %02x\n", s->vga.sr_index, val); #endif break; } } /*************************************** * * I/O access at 0x3c6 * ***************************************/ static int cirrus_read_hidden_dac(CirrusVGAState * s) { if (++s->cirrus_hidden_dac_lockindex == 5) { s->cirrus_hidden_dac_lockindex = 0; return s->cirrus_hidden_dac_data; } return 0xff; } 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; #if defined(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_vga_read_palette(CirrusVGAState * s) { int val; if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) { val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 + s->vga.dac_sub_index]; } else { val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index]; } if (++s->vga.dac_sub_index == 3) { s->vga.dac_sub_index = 0; s->vga.dac_read_index++; } return val; } static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value) { s->vga.dac_cache[s->vga.dac_sub_index] = reg_value; if (++s->vga.dac_sub_index == 3) { if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) { memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3], s->vga.dac_cache, 3); } else { memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3); } /* XXX update cursor */ s->vga.dac_sub_index = 0; s->vga.dac_write_index++; } } /*************************************** * * I/O access between 0x3ce-0x3cf * ***************************************/ static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index) { switch (reg_index) { case 0x00: // Standard VGA, BGCOLOR 0x000000ff return s->cirrus_shadow_gr0; case 0x01: // Standard VGA, FGCOLOR 0x000000ff return s->cirrus_shadow_gr1; 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 s->vga.gr[s->vga.gr_index]; case 0x05: // Standard VGA, Cirrus extended mode default: break; } if (reg_index < 0x3a) { return s->vga.gr[reg_index]; } else { #ifdef DEBUG_CIRRUS printf("cirrus: inport gr_index %02x\n", reg_index); #endif return 0xff; } } static void cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value) { #if defined(DEBUG_BITBLT) && 0 printf("gr%02x: %02x\n", reg_index, reg_value); #endif switch (reg_index) { case 0x00: // Standard VGA, BGCOLOR 0x000000ff s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; s->cirrus_shadow_gr0 = reg_value; break; case 0x01: // Standard VGA, FGCOLOR 0x000000ff s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; s->cirrus_shadow_gr1 = reg_value; break; case 0x02: // Standard VGA case 0x03: // Standard VGA case 0x04: // Standard VGA case 0x06: // Standard VGA case 0x07: // Standard VGA case 0x08: // Standard VGA s->vga.gr[reg_index] = reg_value & gr_mask[reg_index]; break; case 0x05: // Standard VGA, Cirrus extended mode s->vga.gr[reg_index] = reg_value & 0x7f; cirrus_update_memory_access(s); break; case 0x09: // bank offset #0 case 0x0A: // bank offset #1 s->vga.gr[reg_index] = reg_value; cirrus_update_bank_ptr(s, 0); cirrus_update_bank_ptr(s, 1); cirrus_update_memory_access(s); break; case 0x0B: s->vga.gr[reg_index] = reg_value; cirrus_update_bank_ptr(s, 0); cirrus_update_bank_ptr(s, 1); cirrus_update_memory_access(s); 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 0x2f: // BLT WRITEMASK case 0x30: // BLT MODE case 0x32: // RASTER OP case 0x33: // BLT MODEEXT 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->vga.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->vga.gr[reg_index] = reg_value & 0x1f; break; case 0x2a: // BLT DEST ADDR 0x3f0000 s->vga.gr[reg_index] = reg_value & 0x3f; /* if auto start mode, starts bit blt now */ if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) { cirrus_bitblt_start(s); } break; case 0x2e: // BLT SRC ADDR 0x3f0000 s->vga.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; } } /*************************************** * * I/O access between 0x3d4-0x3d5 * ***************************************/ static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index) { 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 s->vga.cr[s->vga.cr_index]; case 0x24: // Attribute Controller Toggle Readback (R) return (s->vga.ar_flip_flop << 7); 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 0x25: // Part Status case 0x27: // Part ID (R) return s->vga.cr[s->vga.cr_index]; case 0x26: // Attribute Controller Index Readback (R) return s->vga.ar_index & 0x3f; break; default: #ifdef DEBUG_CIRRUS printf("cirrus: inport cr_index %02x\n", reg_index); #endif return 0xff; } } static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value) { switch (s->vga.cr_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 /* handle CR0-7 protection */ if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) { /* can always write bit 4 of CR7 */ if (s->vga.cr_index == 7) s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10); return; } s->vga.cr[s->vga.cr_index] = reg_value; switch(s->vga.cr_index) { case 0x00: case 0x04: case 0x05: case 0x06: case 0x07: case 0x11: case 0x17: s->vga.update_retrace_info(&s->vga); break; } break; case 0x19: // Interlace End case 0x1a: // Miscellaneous Control case 0x1b: // Extended Display Control case 0x1c: // Sync Adjust and Genlock case 0x1d: // Overlay Extended Control s->vga.cr[s->vga.cr_index] = reg_value; #ifdef DEBUG_CIRRUS printf("cirrus: handled outport cr_index %02x, cr_value %02x\n", s->vga.cr_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 0x25: // Part Status default: #ifdef DEBUG_CIRRUS printf("cirrus: outport cr_index %02x, cr_value %02x\n", s->vga.cr_index, reg_value); #endif break; } } /*************************************** * * 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): value = cirrus_vga_read_gr(s, 0x00); break; case (CIRRUS_MMIO_BLTBGCOLOR + 1): value = cirrus_vga_read_gr(s, 0x10); break; case (CIRRUS_MMIO_BLTBGCOLOR + 2): value = cirrus_vga_read_gr(s, 0x12); break; case (CIRRUS_MMIO_BLTBGCOLOR + 3): value = cirrus_vga_read_gr(s, 0x14); break; case (CIRRUS_MMIO_BLTFGCOLOR + 0): value = cirrus_vga_read_gr(s, 0x01); break; case (CIRRUS_MMIO_BLTFGCOLOR + 1): value = cirrus_vga_read_gr(s, 0x11); break; case (CIRRUS_MMIO_BLTFGCOLOR + 2): value = cirrus_vga_read_gr(s, 0x13); break; case (CIRRUS_MMIO_BLTFGCOLOR + 3): value = cirrus_vga_read_gr(s, 0x15); break; case (CIRRUS_MMIO_BLTWIDTH + 0): value = cirrus_vga_read_gr(s, 0x20); break; case (CIRRUS_MMIO_BLTWIDTH + 1): value = cirrus_vga_read_gr(s, 0x21); break; case (CIRRUS_MMIO_BLTHEIGHT + 0): value = cirrus_vga_read_gr(s, 0x22); break; case (CIRRUS_MMIO_BLTHEIGHT + 1): value = cirrus_vga_read_gr(s, 0x23); break; case (CIRRUS_MMIO_BLTDESTPITCH + 0): value = cirrus_vga_read_gr(s, 0x24); break; case (CIRRUS_MMIO_BLTDESTPITCH + 1): value = cirrus_vga_read_gr(s, 0x25); break; case (CIRRUS_MMIO_BLTSRCPITCH + 0): value = cirrus_vga_read_gr(s, 0x26); break; case (CIRRUS_MMIO_BLTSRCPITCH + 1): value = cirrus_vga_read_gr(s, 0x27); break; case (CIRRUS_MMIO_BLTDESTADDR + 0): value = cirrus_vga_read_gr(s, 0x28); break; case (CIRRUS_MMIO_BLTDESTADDR + 1): value = cirrus_vga_read_gr(s, 0x29); break; case (CIRRUS_MMIO_BLTDESTADDR + 2): value = cirrus_vga_read_gr(s, 0x2a); break; case (CIRRUS_MMIO_BLTSRCADDR + 0): value = cirrus_vga_read_gr(s, 0x2c); break; case (CIRRUS_MMIO_BLTSRCADDR + 1): value = cirrus_vga_read_gr(s, 0x2d); break; case (CIRRUS_MMIO_BLTSRCADDR + 2): value = cirrus_vga_read_gr(s, 0x2e); break; case CIRRUS_MMIO_BLTWRITEMASK: value = cirrus_vga_read_gr(s, 0x2f); break; case CIRRUS_MMIO_BLTMODE: value = cirrus_vga_read_gr(s, 0x30); break; case CIRRUS_MMIO_BLTROP: value = cirrus_vga_read_gr(s, 0x32); break; case CIRRUS_MMIO_BLTMODEEXT: value = cirrus_vga_read_gr(s, 0x33); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0): value = cirrus_vga_read_gr(s, 0x34); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1): value = cirrus_vga_read_gr(s, 0x35); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0): value = cirrus_vga_read_gr(s, 0x38); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1): value = cirrus_vga_read_gr(s, 0x39); break; case CIRRUS_MMIO_BLTSTATUS: value = cirrus_vga_read_gr(s, 0x31); break; default: #ifdef DEBUG_CIRRUS printf("cirrus: mmio read - address 0x%04x\n", address); #endif break; } trace_vga_cirrus_write_blt(address, value); return (uint8_t) value; } static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address, uint8_t value) { trace_vga_cirrus_write_blt(address, value); switch (address) { case (CIRRUS_MMIO_BLTBGCOLOR + 0): cirrus_vga_write_gr(s, 0x00, value); break; case (CIRRUS_MMIO_BLTBGCOLOR + 1): cirrus_vga_write_gr(s, 0x10, value); break; case (CIRRUS_MMIO_BLTBGCOLOR + 2): cirrus_vga_write_gr(s, 0x12, value); break; case (CIRRUS_MMIO_BLTBGCOLOR + 3): cirrus_vga_write_gr(s, 0x14, value); break; case (CIRRUS_MMIO_BLTFGCOLOR + 0): cirrus_vga_write_gr(s, 0x01, value); break; case (CIRRUS_MMIO_BLTFGCOLOR + 1): cirrus_vga_write_gr(s, 0x11, value); break; case (CIRRUS_MMIO_BLTFGCOLOR + 2): cirrus_vga_write_gr(s, 0x13, value); break; case (CIRRUS_MMIO_BLTFGCOLOR + 3): cirrus_vga_write_gr(s, 0x15, value); break; case (CIRRUS_MMIO_BLTWIDTH + 0): cirrus_vga_write_gr(s, 0x20, value); break; case (CIRRUS_MMIO_BLTWIDTH + 1): cirrus_vga_write_gr(s, 0x21, value); break; case (CIRRUS_MMIO_BLTHEIGHT + 0): cirrus_vga_write_gr(s, 0x22, value); break; case (CIRRUS_MMIO_BLTHEIGHT + 1): cirrus_vga_write_gr(s, 0x23, value); break; case (CIRRUS_MMIO_BLTDESTPITCH + 0): cirrus_vga_write_gr(s, 0x24, value); break; case (CIRRUS_MMIO_BLTDESTPITCH + 1): cirrus_vga_write_gr(s, 0x25, value); break; case (CIRRUS_MMIO_BLTSRCPITCH + 0): cirrus_vga_write_gr(s, 0x26, value); break; case (CIRRUS_MMIO_BLTSRCPITCH + 1): cirrus_vga_write_gr(s, 0x27, value); break; case (CIRRUS_MMIO_BLTDESTADDR + 0): cirrus_vga_write_gr(s, 0x28, value); break; case (CIRRUS_MMIO_BLTDESTADDR + 1): cirrus_vga_write_gr(s, 0x29, value); break; case (CIRRUS_MMIO_BLTDESTADDR + 2): cirrus_vga_write_gr(s, 0x2a, value); break; case (CIRRUS_MMIO_BLTDESTADDR + 3): /* ignored */ break; case (CIRRUS_MMIO_BLTSRCADDR + 0): cirrus_vga_write_gr(s, 0x2c, value); break; case (CIRRUS_MMIO_BLTSRCADDR + 1): cirrus_vga_write_gr(s, 0x2d, value); break; case (CIRRUS_MMIO_BLTSRCADDR + 2): cirrus_vga_write_gr(s, 0x2e, value); break; case CIRRUS_MMIO_BLTWRITEMASK: cirrus_vga_write_gr(s, 0x2f, value); break; case CIRRUS_MMIO_BLTMODE: cirrus_vga_write_gr(s, 0x30, value); break; case CIRRUS_MMIO_BLTROP: cirrus_vga_write_gr(s, 0x32, value); break; case CIRRUS_MMIO_BLTMODEEXT: cirrus_vga_write_gr(s, 0x33, value); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0): cirrus_vga_write_gr(s, 0x34, value); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1): cirrus_vga_write_gr(s, 0x35, value); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0): cirrus_vga_write_gr(s, 0x38, value); break; case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1): cirrus_vga_write_gr(s, 0x39, value); break; case CIRRUS_MMIO_BLTSTATUS: cirrus_vga_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 * ***************************************/ 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; for (x = 0; x < 8; x++) { dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask); if (val & 0x80) { *dst = s->cirrus_shadow_gr1; } else if (mode == 5) { *dst = s->cirrus_shadow_gr0; } val <<= 1; } memory_region_set_dirty(&s->vga.vram, offset, 8); } 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; for (x = 0; x < 8; x++) { dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1); if (val & 0x80) { *dst = s->cirrus_shadow_gr1; *(dst + 1) = s->vga.gr[0x11]; } else if (mode == 5) { *dst = s->cirrus_shadow_gr0; *(dst + 1) = s->vga.gr[0x10]; } val <<= 1; } memory_region_set_dirty(&s->vga.vram, offset, 16); } /*************************************** * * memory access between 0xa0000-0xbffff * ***************************************/ static uint64_t cirrus_vga_mem_read(void *opaque, hwaddr addr, uint32_t size) { CirrusVGAState *s = opaque; unsigned bank_index; unsigned bank_offset; uint32_t val; if ((s->vga.sr[0x07] & 0x01) == 0) { return vga_mem_readb(&s->vga, 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->vga.gr[0x0B] & 0x14) == 0x14) { bank_offset <<= 4; } else if (s->vga.gr[0x0B] & 0x02) { bank_offset <<= 3; } bank_offset &= s->cirrus_addr_mask; val = *(s->vga.vram_ptr + bank_offset); } else val = 0xff; } else if (addr >= 0x18000 && addr < 0x18100) { /* memory-mapped I/O */ val = 0xff; if ((s->vga.sr[0x17] & 0x44) == 0x04) { val = cirrus_mmio_blt_read(s, addr & 0xff); } } else { val = 0xff; #ifdef DEBUG_CIRRUS printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr); #endif } return val; } static void cirrus_vga_mem_write(void *opaque, hwaddr addr, uint64_t mem_value, uint32_t size) { CirrusVGAState *s = opaque; unsigned bank_index; unsigned bank_offset; unsigned mode; if ((s->vga.sr[0x07] & 0x01) == 0) { vga_mem_writeb(&s->vga, 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->vga.gr[0x0B] & 0x14) == 0x14) { bank_offset <<= 4; } else if (s->vga.gr[0x0B] & 0x02) { bank_offset <<= 3; } bank_offset &= s->cirrus_addr_mask; mode = s->vga.gr[0x05] & 0x7; if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { *(s->vga.vram_ptr + bank_offset) = mem_value; memory_region_set_dirty(&s->vga.vram, bank_offset, sizeof(mem_value)); } else { if ((s->vga.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->vga.sr[0x17] & 0x44) == 0x04) { cirrus_mmio_blt_write(s, addr & 0xff, mem_value); } } else { #ifdef DEBUG_CIRRUS printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr, mem_value); #endif } } static const MemoryRegionOps cirrus_vga_mem_ops = { .read = cirrus_vga_mem_read, .write = cirrus_vga_mem_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 1, .max_access_size = 1, }, }; /*************************************** * * hardware cursor * ***************************************/ static inline void invalidate_cursor1(CirrusVGAState *s) { if (s->last_hw_cursor_size) { vga_invalidate_scanlines(&s->vga, s->last_hw_cursor_y + s->last_hw_cursor_y_start, s->last_hw_cursor_y + s->last_hw_cursor_y_end); } } static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s) { const uint8_t *src; uint32_t content; int y, y_min, y_max; src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB; if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { src += (s->vga.sr[0x13] & 0x3c) * 256; y_min = 64; y_max = -1; for(y = 0; y < 64; y++) { content = ((uint32_t *)src)[0] | ((uint32_t *)src)[1] | ((uint32_t *)src)[2] | ((uint32_t *)src)[3]; if (content) { if (y < y_min) y_min = y; if (y > y_max) y_max = y; } src += 16; } } else { src += (s->vga.sr[0x13] & 0x3f) * 256; y_min = 32; y_max = -1; for(y = 0; y < 32; y++) { content = ((uint32_t *)src)[0] | ((uint32_t *)(src + 128))[0]; if (content) { if (y < y_min) y_min = y; if (y > y_max) y_max = y; } src += 4; } } if (y_min > y_max) { s->last_hw_cursor_y_start = 0; s->last_hw_cursor_y_end = 0; } else { s->last_hw_cursor_y_start = y_min; s->last_hw_cursor_y_end = y_max + 1; } } /* NOTE: we do not currently handle the cursor bitmap change, so we update the cursor only if it moves. */ static void cirrus_cursor_invalidate(VGACommonState *s1) { CirrusVGAState *s = container_of(s1, CirrusVGAState, vga); int size; if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) { size = 0; } else { if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) size = 64; else size = 32; } /* invalidate last cursor and new cursor if any change */ if (s->last_hw_cursor_size != size || s->last_hw_cursor_x != s->vga.hw_cursor_x || s->last_hw_cursor_y != s->vga.hw_cursor_y) { invalidate_cursor1(s); s->last_hw_cursor_size = size; s->last_hw_cursor_x = s->vga.hw_cursor_x; s->last_hw_cursor_y = s->vga.hw_cursor_y; /* compute the real cursor min and max y */ cirrus_cursor_compute_yrange(s); invalidate_cursor1(s); } } static void vga_draw_cursor_line(uint8_t *d1, const uint8_t *src1, int poffset, int w, unsigned int color0, unsigned int color1, unsigned int color_xor) { const uint8_t *plane0, *plane1; int x, b0, b1; uint8_t *d; d = d1; plane0 = src1; plane1 = src1 + poffset; for (x = 0; x < w; x++) { b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1; b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1; switch (b0 | (b1 << 1)) { case 0: break; case 1: ((uint32_t *)d)[0] ^= color_xor; break; case 2: ((uint32_t *)d)[0] = color0; break; case 3: ((uint32_t *)d)[0] = color1; break; } d += 4; } } static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y) { CirrusVGAState *s = container_of(s1, CirrusVGAState, vga); int w, h, x1, x2, poffset; unsigned int color0, color1; const uint8_t *palette, *src; uint32_t content; if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) return; /* fast test to see if the cursor intersects with the scan line */ if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { h = 64; } else { h = 32; } if (scr_y < s->vga.hw_cursor_y || scr_y >= (s->vga.hw_cursor_y + h)) { return; } src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB; if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) { src += (s->vga.sr[0x13] & 0x3c) * 256; src += (scr_y - s->vga.hw_cursor_y) * 16; poffset = 8; content = ((uint32_t *)src)[0] | ((uint32_t *)src)[1] | ((uint32_t *)src)[2] | ((uint32_t *)src)[3]; } else { src += (s->vga.sr[0x13] & 0x3f) * 256; src += (scr_y - s->vga.hw_cursor_y) * 4; poffset = 128; content = ((uint32_t *)src)[0] | ((uint32_t *)(src + 128))[0]; } /* if nothing to draw, no need to continue */ if (!content) return; w = h; x1 = s->vga.hw_cursor_x; if (x1 >= s->vga.last_scr_width) return; x2 = s->vga.hw_cursor_x + w; if (x2 > s->vga.last_scr_width) x2 = s->vga.last_scr_width; w = x2 - x1; palette = s->cirrus_hidden_palette; color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]), c6_to_8(palette[0x0 * 3 + 1]), c6_to_8(palette[0x0 * 3 + 2])); color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]), c6_to_8(palette[0xf * 3 + 1]), c6_to_8(palette[0xf * 3 + 2])); d1 += x1 * 4; vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff); } /*************************************** * * LFB memory access * ***************************************/ static uint64_t cirrus_linear_read(void *opaque, hwaddr addr, unsigned size) { CirrusVGAState *s = opaque; uint32_t ret; addr &= s->cirrus_addr_mask; if (((s->vga.sr[0x17] & 0x44) == 0x44) && ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) { /* 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->vga.gr[0x0B] & 0x14) == 0x14) { addr <<= 4; } else if (s->vga.gr[0x0B] & 0x02) { addr <<= 3; } addr &= s->cirrus_addr_mask; ret = *(s->vga.vram_ptr + addr); } return ret; } static void cirrus_linear_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { CirrusVGAState *s = opaque; unsigned mode; addr &= s->cirrus_addr_mask; if (((s->vga.sr[0x17] & 0x44) == 0x44) && ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) { /* 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->vga.gr[0x0B] & 0x14) == 0x14) { addr <<= 4; } else if (s->vga.gr[0x0B] & 0x02) { addr <<= 3; } addr &= s->cirrus_addr_mask; mode = s->vga.gr[0x05] & 0x7; if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { *(s->vga.vram_ptr + addr) = (uint8_t) val; memory_region_set_dirty(&s->vga.vram, addr, 1); } else { if ((s->vga.gr[0x0B] & 0x14) != 0x14) { cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val); } else { cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val); } } } } /*************************************** * * system to screen memory access * ***************************************/ static uint64_t cirrus_linear_bitblt_read(void *opaque, hwaddr addr, unsigned size) { CirrusVGAState *s = opaque; uint32_t ret; /* XXX handle bitblt */ (void)s; ret = 0xff; return ret; } static void cirrus_linear_bitblt_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { CirrusVGAState *s = opaque; 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); } } } static const MemoryRegionOps cirrus_linear_bitblt_io_ops = { .read = cirrus_linear_bitblt_read, .write = cirrus_linear_bitblt_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 1, .max_access_size = 1, }, }; static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank) { MemoryRegion *mr = &s->cirrus_bank[bank]; bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end) && !((s->vga.sr[0x07] & 0x01) == 0) && !((s->vga.gr[0x0B] & 0x14) == 0x14) && !(s->vga.gr[0x0B] & 0x02); memory_region_set_enabled(mr, enabled); memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]); } static void map_linear_vram(CirrusVGAState *s) { if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) { s->linear_vram = true; memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1); } map_linear_vram_bank(s, 0); map_linear_vram_bank(s, 1); } static void unmap_linear_vram(CirrusVGAState *s) { if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) { s->linear_vram = false; memory_region_del_subregion(&s->pci_bar, &s->vga.vram); } memory_region_set_enabled(&s->cirrus_bank[0], false); memory_region_set_enabled(&s->cirrus_bank[1], false); } /* Compute the memory access functions */ static void cirrus_update_memory_access(CirrusVGAState *s) { unsigned mode; memory_region_transaction_begin(); if ((s->vga.sr[0x17] & 0x44) == 0x44) { goto generic_io; } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) { goto generic_io; } else { if ((s->vga.gr[0x0B] & 0x14) == 0x14) { goto generic_io; } else if (s->vga.gr[0x0B] & 0x02) { goto generic_io; } mode = s->vga.gr[0x05] & 0x7; if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) { map_linear_vram(s); } else { generic_io: unmap_linear_vram(s); } } memory_region_transaction_commit(); } /* I/O ports */ static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr, unsigned size) { CirrusVGAState *c = opaque; VGACommonState *s = &c->vga; int val, index; addr += 0x3b0; if (vga_ioport_invalid(s, addr)) { 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: val = cirrus_vga_read_sr(c); break; #ifdef DEBUG_VGA_REG printf("vga: read SR%x = 0x%02x\n", s->sr_index, val); #endif break; case 0x3c6: val = cirrus_read_hidden_dac(c); break; case 0x3c7: val = s->dac_state; break; case 0x3c8: val = s->dac_write_index; c->cirrus_hidden_dac_lockindex = 0; break; case 0x3c9: val = cirrus_vga_read_palette(c); break; case 0x3ca: val = s->fcr; break; case 0x3cc: val = s->msr; break; case 0x3ce: val = s->gr_index; break; case 0x3cf: val = cirrus_vga_read_gr(c, 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: val = cirrus_vga_read_cr(c, 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 */ val = s->st01 = s->retrace(s); s->ar_flip_flop = 0; break; default: val = 0x00; break; } } trace_vga_cirrus_read_io(addr, val); return val; } static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { CirrusVGAState *c = opaque; VGACommonState *s = &c->vga; int index; addr += 0x3b0; /* check port range access depending on color/monochrome mode */ if (vga_ioport_invalid(s, addr)) { return; } trace_vga_cirrus_write_io(addr, val); 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; s->update_retrace_info(s); break; case 0x3c4: s->sr_index = val; break; case 0x3c5: #ifdef DEBUG_VGA_REG printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val); #endif cirrus_vga_write_sr(c, val); break; case 0x3c6: cirrus_write_hidden_dac(c, 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: cirrus_vga_write_palette(c, val); break; case 0x3ce: s->gr_index = val; break; case 0x3cf: #ifdef DEBUG_VGA_REG printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val); #endif cirrus_vga_write_gr(c, s->gr_index, val); break; case 0x3b4: case 0x3d4: s->cr_index = val; break; case 0x3b5: case 0x3d5: #ifdef DEBUG_VGA_REG printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val); #endif cirrus_vga_write_cr(c, val); break; case 0x3ba: case 0x3da: s->fcr = val & 0x10; break; } } /*************************************** * * memory-mapped I/O access * ***************************************/ static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr, unsigned size) { CirrusVGAState *s = opaque; if (addr >= 0x100) { return cirrus_mmio_blt_read(s, addr - 0x100); } else { return cirrus_vga_ioport_read(s, addr + 0x10, size); } } static void cirrus_mmio_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { CirrusVGAState *s = opaque; if (addr >= 0x100) { cirrus_mmio_blt_write(s, addr - 0x100, val); } else { cirrus_vga_ioport_write(s, addr + 0x10, val, size); } } static const MemoryRegionOps cirrus_mmio_io_ops = { .read = cirrus_mmio_read, .write = cirrus_mmio_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 1, .max_access_size = 1, }, }; /* load/save state */ static int cirrus_post_load(void *opaque, int version_id) { CirrusVGAState *s = opaque; s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f; s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f; cirrus_update_bank_ptr(s, 0); cirrus_update_bank_ptr(s, 1); cirrus_update_memory_access(s); /* force refresh */ s->vga.graphic_mode = -1; return 0; } const VMStateDescription vmstate_cirrus_vga = { .name = "cirrus_vga", .version_id = 2, .minimum_version_id = 1, .post_load = cirrus_post_load, .fields = (VMStateField[]) { VMSTATE_UINT32(vga.latch, CirrusVGAState), VMSTATE_UINT8(vga.sr_index, CirrusVGAState), VMSTATE_BUFFER(vga.sr, CirrusVGAState), VMSTATE_UINT8(vga.gr_index, CirrusVGAState), VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState), VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState), VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2), VMSTATE_UINT8(vga.ar_index, CirrusVGAState), VMSTATE_BUFFER(vga.ar, CirrusVGAState), VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState), VMSTATE_UINT8(vga.cr_index, CirrusVGAState), VMSTATE_BUFFER(vga.cr, CirrusVGAState), VMSTATE_UINT8(vga.msr, CirrusVGAState), VMSTATE_UINT8(vga.fcr, CirrusVGAState), VMSTATE_UINT8(vga.st00, CirrusVGAState), VMSTATE_UINT8(vga.st01, CirrusVGAState), VMSTATE_UINT8(vga.dac_state, CirrusVGAState), VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState), VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState), VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState), VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState), VMSTATE_BUFFER(vga.palette, CirrusVGAState), VMSTATE_INT32(vga.bank_offset, CirrusVGAState), VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState), VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState), VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState), VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState), /* XXX: we do not save the bitblt state - we assume we do not save the state when the blitter is active */ VMSTATE_END_OF_LIST() } }; static const VMStateDescription vmstate_pci_cirrus_vga = { .name = "cirrus_vga", .version_id = 2, .minimum_version_id = 2, .fields = (VMStateField[]) { VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState), VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0, vmstate_cirrus_vga, CirrusVGAState), VMSTATE_END_OF_LIST() } }; /*************************************** * * initialize * ***************************************/ static void cirrus_reset(void *opaque) { CirrusVGAState *s = opaque; vga_common_reset(&s->vga); unmap_linear_vram(s); s->vga.sr[0x06] = 0x0f; if (s->device_id == CIRRUS_ID_CLGD5446) { /* 4MB 64 bit memory config, always PCI */ s->vga.sr[0x1F] = 0x2d; // MemClock s->vga.gr[0x18] = 0x0f; // fastest memory configuration s->vga.sr[0x0f] = 0x98; s->vga.sr[0x17] = 0x20; s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */ } else { s->vga.sr[0x1F] = 0x22; // MemClock s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M; s->vga.sr[0x17] = s->bustype; s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */ } s->vga.cr[0x27] = s->device_id; s->cirrus_hidden_dac_lockindex = 5; s->cirrus_hidden_dac_data = 0; } static const MemoryRegionOps cirrus_linear_io_ops = { .read = cirrus_linear_read, .write = cirrus_linear_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 1, .max_access_size = 1, }, }; static const MemoryRegionOps cirrus_vga_io_ops = { .read = cirrus_vga_ioport_read, .write = cirrus_vga_ioport_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 1, .max_access_size = 1, }, }; void cirrus_init_common(CirrusVGAState *s, Object *owner, int device_id, int is_pci, MemoryRegion *system_memory, MemoryRegion *system_io) { int i; static int inited; if (!inited) { inited = 1; for(i = 0;i < 256; i++) rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */ rop_to_index[CIRRUS_ROP_0] = 0; rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1; rop_to_index[CIRRUS_ROP_NOP] = 2; rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3; rop_to_index[CIRRUS_ROP_NOTDST] = 4; rop_to_index[CIRRUS_ROP_SRC] = 5; rop_to_index[CIRRUS_ROP_1] = 6; rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7; rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8; rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9; rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10; rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11; rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12; rop_to_index[CIRRUS_ROP_NOTSRC] = 13; rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14; rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15; s->device_id = device_id; if (is_pci) s->bustype = CIRRUS_BUSTYPE_PCI; else s->bustype = CIRRUS_BUSTYPE_ISA; } /* Register ioport 0x3b0 - 0x3df */ memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s, "cirrus-io", 0x30); memory_region_set_flush_coalesced(&s->cirrus_vga_io); memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io); memory_region_init(&s->low_mem_container, owner, "cirrus-lowmem-container", 0x20000); memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s, "cirrus-low-memory", 0x20000); memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem); for (i = 0; i < 2; ++i) { static const char *names[] = { "vga.bank0", "vga.bank1" }; MemoryRegion *bank = &s->cirrus_bank[i]; memory_region_init_alias(bank, owner, names[i], &s->vga.vram, 0, 0x8000); memory_region_set_enabled(bank, false); memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000, bank, 1); } memory_region_add_subregion_overlap(system_memory, 0x000a0000, &s->low_mem_container, 1); memory_region_set_coalescing(&s->low_mem); /* I/O handler for LFB */ memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s, "cirrus-linear-io", s->vga.vram_size_mb * MiB); memory_region_set_flush_coalesced(&s->cirrus_linear_io); /* I/O handler for LFB */ memory_region_init_io(&s->cirrus_linear_bitblt_io, owner, &cirrus_linear_bitblt_io_ops, s, "cirrus-bitblt-mmio", 0x400000); memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io); /* I/O handler for memory-mapped I/O */ memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s, "cirrus-mmio", CIRRUS_PNPMMIO_SIZE); memory_region_set_flush_coalesced(&s->cirrus_mmio_io); s->real_vram_size = (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB; /* XXX: s->vga.vram_size must be a power of two */ s->cirrus_addr_mask = s->real_vram_size - 1; s->linear_mmio_mask = s->real_vram_size - 256; s->vga.get_bpp = cirrus_get_bpp; s->vga.get_offsets = cirrus_get_offsets; s->vga.get_resolution = cirrus_get_resolution; s->vga.cursor_invalidate = cirrus_cursor_invalidate; s->vga.cursor_draw_line = cirrus_cursor_draw_line; qemu_register_reset(cirrus_reset, s); } /*************************************** * * PCI bus support * ***************************************/ static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp) { PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev); CirrusVGAState *s = &d->cirrus_vga; PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); int16_t device_id = pc->device_id; /* follow real hardware, cirrus card emulated has 4 MB video memory. Also accept 8 MB/16 MB for backward compatibility. */ if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 && s->vga.vram_size_mb != 16) { error_setg(errp, "Invalid cirrus_vga ram size '%u'", s->vga.vram_size_mb); return; } /* setup VGA */ vga_common_init(&s->vga, OBJECT(dev)); cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev), pci_address_space_io(dev)); s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga); /* setup PCI */ memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000); /* XXX: add byte swapping apertures */ memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io); memory_region_add_subregion(&s->pci_bar, 0x1000000, &s->cirrus_linear_bitblt_io); /* setup memory space */ /* memory #0 LFB */ /* memory #1 memory-mapped I/O */ /* XXX: s->vga.vram_size must be a power of two */ pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar); if (device_id == CIRRUS_ID_CLGD5446) { pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io); } } static Property pci_vga_cirrus_properties[] = { DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState, cirrus_vga.vga.vram_size_mb, 4), DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState, cirrus_vga.enable_blitter, true), DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState, cirrus_vga.vga.global_vmstate, false), DEFINE_PROP_END_OF_LIST(), }; static void cirrus_vga_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); k->realize = pci_cirrus_vga_realize; k->romfile = VGABIOS_CIRRUS_FILENAME; k->vendor_id = PCI_VENDOR_ID_CIRRUS; k->device_id = CIRRUS_ID_CLGD5446; k->class_id = PCI_CLASS_DISPLAY_VGA; set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); dc->desc = "Cirrus CLGD 54xx VGA"; dc->vmsd = &vmstate_pci_cirrus_vga; dc->props = pci_vga_cirrus_properties; dc->hotpluggable = false; } static const TypeInfo cirrus_vga_info = { .name = TYPE_PCI_CIRRUS_VGA, .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(PCICirrusVGAState), .class_init = cirrus_vga_class_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, }; static void cirrus_vga_register_types(void) { type_register_static(&cirrus_vga_info); } type_init(cirrus_vga_register_types)