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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20181001-pull-request' into...
[mirror_qemu.git] / hw / display / cirrus_vga.c
CommitLineData
e6e5ad80 1/*
aeb3c85f 2 * QEMU Cirrus CLGD 54xx VGA Emulator.
5fafdf24 3 *
e6e5ad80 4 * Copyright (c) 2004 Fabrice Bellard
aeb3c85f 5 * Copyright (c) 2004 Makoto Suzuki (suzu)
5fafdf24 6 *
e6e5ad80
FB		 7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
aeb3c85f
FB		 25/*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
47df5154 29#include "qemu/osdep.h"
f0353b0d 30#include "qemu/units.h"
da34e65c 31#include "qapi/error.h"
ec87f206 32#include "trace.h"
83c9f4ca
PB		 33#include "hw/hw.h"
34#include "hw/pci/pci.h"
d3c2343a 35#include "ui/pixel_ops.h"
47b43a1f 36#include "vga_int.h"
83c9f4ca 37#include "hw/loader.h"
e6e5ad80 38
a5082316
FB		 39/*
40 * TODO:
ad81218e 41 * - destination write mask support not complete (bits 5..7)
a5082316
FB		 42 * - optimize linear mappings
43 * - optimize bitblt functions
44 */
45
e36f36e1 46//#define DEBUG_CIRRUS
a21ae81d 47//#define DEBUG_BITBLT
e36f36e1 48
e6e5ad80
FB		 49/***************************************
50 *
51 * definitions
52 *
53 ***************************************/
54
e6e5ad80
FB		 55// ID
56#define CIRRUS_ID_CLGD5422 (0x23<<2)
57#define CIRRUS_ID_CLGD5426 (0x24<<2)
58#define CIRRUS_ID_CLGD5424 (0x25<<2)
59#define CIRRUS_ID_CLGD5428 (0x26<<2)
60#define CIRRUS_ID_CLGD5430 (0x28<<2)
61#define CIRRUS_ID_CLGD5434 (0x2A<<2)
a21ae81d 62#define CIRRUS_ID_CLGD5436 (0x2B<<2)
e6e5ad80
FB		 63#define CIRRUS_ID_CLGD5446 (0x2E<<2)
64
65// sequencer 0x07
66#define CIRRUS_SR7_BPP_VGA 0x00
67#define CIRRUS_SR7_BPP_SVGA 0x01
68#define CIRRUS_SR7_BPP_MASK 0x0e
69#define CIRRUS_SR7_BPP_8 0x00
70#define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
71#define CIRRUS_SR7_BPP_24 0x04
72#define CIRRUS_SR7_BPP_16 0x06
73#define CIRRUS_SR7_BPP_32 0x08
74#define CIRRUS_SR7_ISAADDR_MASK 0xe0
75
76// sequencer 0x0f
77#define CIRRUS_MEMSIZE_512k 0x08
78#define CIRRUS_MEMSIZE_1M 0x10
79#define CIRRUS_MEMSIZE_2M 0x18
80#define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
81
82// sequencer 0x12
83#define CIRRUS_CURSOR_SHOW 0x01
84#define CIRRUS_CURSOR_HIDDENPEL 0x02
85#define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
86
87// sequencer 0x17
88#define CIRRUS_BUSTYPE_VLBFAST 0x10
89#define CIRRUS_BUSTYPE_PCI 0x20
90#define CIRRUS_BUSTYPE_VLBSLOW 0x30
91#define CIRRUS_BUSTYPE_ISA 0x38
92#define CIRRUS_MMIO_ENABLE 0x04
93#define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
94#define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
95
96// control 0x0b
97#define CIRRUS_BANKING_DUAL 0x01
98#define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
99
100// control 0x30
101#define CIRRUS_BLTMODE_BACKWARDS 0x01
102#define CIRRUS_BLTMODE_MEMSYSDEST 0x02
103#define CIRRUS_BLTMODE_MEMSYSSRC 0x04
104#define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
105#define CIRRUS_BLTMODE_PATTERNCOPY 0x40
106#define CIRRUS_BLTMODE_COLOREXPAND 0x80
107#define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
108#define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
109#define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
110#define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
111#define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
112
113// control 0x31
114#define CIRRUS_BLT_BUSY 0x01
115#define CIRRUS_BLT_START 0x02
116#define CIRRUS_BLT_RESET 0x04
117#define CIRRUS_BLT_FIFOUSED 0x10
a5082316 118#define CIRRUS_BLT_AUTOSTART 0x80
e6e5ad80
FB		 119
120// control 0x32
121#define CIRRUS_ROP_0 0x00
122#define CIRRUS_ROP_SRC_AND_DST 0x05
123#define CIRRUS_ROP_NOP 0x06
124#define CIRRUS_ROP_SRC_AND_NOTDST 0x09
125#define CIRRUS_ROP_NOTDST 0x0b
126#define CIRRUS_ROP_SRC 0x0d
127#define CIRRUS_ROP_1 0x0e
128#define CIRRUS_ROP_NOTSRC_AND_DST 0x50
129#define CIRRUS_ROP_SRC_XOR_DST 0x59
130#define CIRRUS_ROP_SRC_OR_DST 0x6d
131#define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
132#define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
133#define CIRRUS_ROP_SRC_OR_NOTDST 0xad
134#define CIRRUS_ROP_NOTSRC 0xd0
135#define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
136#define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
137
a5082316
FB		 138#define CIRRUS_ROP_NOP_INDEX 2
139#define CIRRUS_ROP_SRC_INDEX 5
140
a21ae81d 141// control 0x33
a5082316 142#define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
4c8732d7 143#define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
a5082316 144#define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
a21ae81d 145
e6e5ad80
FB		 146// memory-mapped IO
147#define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
148#define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
149#define CIRRUS_MMIO_BLTWIDTH 0x08 // word
150#define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
151#define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
152#define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
153#define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
154#define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
155#define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
156#define CIRRUS_MMIO_BLTMODE 0x18 // byte
157#define CIRRUS_MMIO_BLTROP 0x1a // byte
158#define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
159#define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
160#define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
161#define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
162#define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
163#define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
164#define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
165#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
166#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
167#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
168#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
169#define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
170#define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
171#define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
172#define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
173#define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
174#define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
175#define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
176
a21ae81d 177#define CIRRUS_PNPMMIO_SIZE 0x1000
e6e5ad80 178
a5082316
FB		 179struct CirrusVGAState;
180typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
ffaf8577 181 uint32_t dstaddr, uint32_t srcaddr,
e6e5ad80
FB		 182 int dstpitch, int srcpitch,
183 int bltwidth, int bltheight);
a5082316 184typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
026aeffc
GH		 185 uint32_t dstaddr, int dst_pitch,
186 int width, int height);
e6e5ad80
FB		 187
188typedef struct CirrusVGAState {
4e12cd94 189 VGACommonState vga;
e6e5ad80 190
c75e6d8e 191 MemoryRegion cirrus_vga_io;
b1950430
AK		 192 MemoryRegion cirrus_linear_io;
193 MemoryRegion cirrus_linear_bitblt_io;
194 MemoryRegion cirrus_mmio_io;
195 MemoryRegion pci_bar;
196 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
197 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
198 MemoryRegion low_mem; /* always mapped, overridden by: */
7969d9ed 199 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
e6e5ad80 200 uint32_t cirrus_addr_mask;
78e127ef 201 uint32_t linear_mmio_mask;
e6e5ad80
FB		 202 uint8_t cirrus_shadow_gr0;
203 uint8_t cirrus_shadow_gr1;
204 uint8_t cirrus_hidden_dac_lockindex;
205 uint8_t cirrus_hidden_dac_data;
206 uint32_t cirrus_bank_base[2];
207 uint32_t cirrus_bank_limit[2];
208 uint8_t cirrus_hidden_palette[48];
827bd517 209 bool enable_blitter;
e6e5ad80
FB		 210 int cirrus_blt_pixelwidth;
211 int cirrus_blt_width;
212 int cirrus_blt_height;
213 int cirrus_blt_dstpitch;
214 int cirrus_blt_srcpitch;
a5082316
FB		 215 uint32_t cirrus_blt_fgcol;
216 uint32_t cirrus_blt_bgcol;
e6e5ad80
FB		 217 uint32_t cirrus_blt_dstaddr;
218 uint32_t cirrus_blt_srcaddr;
219 uint8_t cirrus_blt_mode;
a5082316 220 uint8_t cirrus_blt_modeext;
e6e5ad80 221 cirrus_bitblt_rop_t cirrus_rop;
a5082316 222#define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
e6e5ad80
FB		 223 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
224 uint8_t *cirrus_srcptr;
225 uint8_t *cirrus_srcptr_end;
226 uint32_t cirrus_srccounter;
a5082316
FB		 227 /* hwcursor display state */
228 int last_hw_cursor_size;
229 int last_hw_cursor_x;
230 int last_hw_cursor_y;
231 int last_hw_cursor_y_start;
232 int last_hw_cursor_y_end;
78e127ef 233 int real_vram_size; /* XXX: suppress that */
4abc796d
BS		 234 int device_id;
235 int bustype;
e6e5ad80
FB		 236} CirrusVGAState;
237
238typedef struct PCICirrusVGAState {
239 PCIDevice dev;
240 CirrusVGAState cirrus_vga;
241} PCICirrusVGAState;
242
d338bae3
GA		 243#define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
244#define PCI_CIRRUS_VGA(obj) \
245 OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA)
246
6d4c2f17
AF		 247#define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
248#define ISA_CIRRUS_VGA(obj) \
249 OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
250
3d402831 251typedef struct ISACirrusVGAState {
6d4c2f17
AF		 252 ISADevice parent_obj;
253
3d402831
BS		 254 CirrusVGAState cirrus_vga;
255} ISACirrusVGAState;
256
a5082316 257static uint8_t rop_to_index[256];
3b46e624 258
e6e5ad80
FB		 259/***************************************
260 *
261 * prototypes.
262 *
263 ***************************************/
264
265
8926b517
FB		 266static void cirrus_bitblt_reset(CirrusVGAState *s);
267static void cirrus_update_memory_access(CirrusVGAState *s);
e6e5ad80
FB		 268
269/***************************************
270 *
271 * raster operations
272 *
273 ***************************************/
274
d3532a0d
GH		 275static bool blit_region_is_unsafe(struct CirrusVGAState *s,
276 int32_t pitch, int32_t addr)
277{
12e97ec3
GH		 278 if (!pitch) {
279 return true;
280 }
d3532a0d
GH		 281 if (pitch < 0) {
282 int64_t min = addr
62d4c6bd
LQ		 283 + ((int64_t)s->cirrus_blt_height - 1) * pitch
284 - s->cirrus_blt_width;
285 if (min < -1 || addr >= s->vga.vram_size) {
d3532a0d
GH		 286 return true;
287 }
288 } else {
289 int64_t max = addr
290 + ((int64_t)s->cirrus_blt_height-1) * pitch
291 + s->cirrus_blt_width;
d2ba7ecb 292 if (max > s->vga.vram_size) {
d3532a0d
GH		 293 return true;
294 }
295 }
296 return false;
297}
298
12e97ec3 299static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only)
d3532a0d
GH		 300{
301 /* should be the case, see cirrus_bitblt_start */
302 assert(s->cirrus_blt_width > 0);
303 assert(s->cirrus_blt_height > 0);
304
bf259833
GH		 305 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
306 return true;
307 }
308
d3532a0d 309 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
60cd23e8 310 s->cirrus_blt_dstaddr)) {
d3532a0d
GH		 311 return true;
312 }
913a8788
BR		 313 if (dst_only) {
314 return false;
315 }
12e97ec3 316 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
60cd23e8 317 s->cirrus_blt_srcaddr)) {
d3532a0d
GH		 318 return true;
319 }
320
321 return false;
322}
323
a5082316 324static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
ffaf8577 325 uint32_t dstaddr, uint32_t srcaddr,
a5082316
FB		 326 int dstpitch,int srcpitch,
327 int bltwidth,int bltheight)
328{
e6e5ad80
FB		 329}
330
a5082316 331static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
026aeffc 332 uint32_t dstaddr,
a5082316 333 int dstpitch, int bltwidth,int bltheight)
e6e5ad80 334{
a5082316 335}
e6e5ad80 336
ffaf8577
GH		 337static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr)
338{
339 if (s->cirrus_srccounter) {
340 /* cputovideo */
341 return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)];
342 } else {
343 /* videotovideo */
344 return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask];
345 }
346}
347
348static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr)
349{
350 uint16_t *src;
351
352 if (s->cirrus_srccounter) {
353 /* cputovideo */
354 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1];
355 } else {
356 /* videotovideo */
357 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1];
358 }
359 return *src;
360}
361
362static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr)
363{
364 uint32_t *src;
365
366 if (s->cirrus_srccounter) {
367 /* cputovideo */
368 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3];
369 } else {
370 /* videotovideo */
371 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3];
372 }
373 return *src;
374}
375
a5082316 376#define ROP_NAME 0
8c78881f 377#define ROP_FN(d, s) 0
47b43a1f 378#include "cirrus_vga_rop.h"
e6e5ad80 379
a5082316 380#define ROP_NAME src_and_dst
8c78881f 381#define ROP_FN(d, s) (s) & (d)
47b43a1f 382#include "cirrus_vga_rop.h"
e6e5ad80 383
a5082316 384#define ROP_NAME src_and_notdst
8c78881f 385#define ROP_FN(d, s) (s) & (~(d))
47b43a1f 386#include "cirrus_vga_rop.h"
e6e5ad80 387
a5082316 388#define ROP_NAME notdst
8c78881f 389#define ROP_FN(d, s) ~(d)
47b43a1f 390#include "cirrus_vga_rop.h"
e6e5ad80 391
a5082316 392#define ROP_NAME src
8c78881f 393#define ROP_FN(d, s) s
47b43a1f 394#include "cirrus_vga_rop.h"
e6e5ad80 395
a5082316 396#define ROP_NAME 1
8c78881f 397#define ROP_FN(d, s) ~0
47b43a1f 398#include "cirrus_vga_rop.h"
a5082316
FB		 399
400#define ROP_NAME notsrc_and_dst
8c78881f 401#define ROP_FN(d, s) (~(s)) & (d)
47b43a1f 402#include "cirrus_vga_rop.h"
a5082316
FB		 403
404#define ROP_NAME src_xor_dst
8c78881f 405#define ROP_FN(d, s) (s) ^ (d)
47b43a1f 406#include "cirrus_vga_rop.h"
a5082316
FB		 407
408#define ROP_NAME src_or_dst
8c78881f 409#define ROP_FN(d, s) (s) | (d)
47b43a1f 410#include "cirrus_vga_rop.h"
a5082316
FB		 411
412#define ROP_NAME notsrc_or_notdst
8c78881f 413#define ROP_FN(d, s) (~(s)) | (~(d))
47b43a1f 414#include "cirrus_vga_rop.h"
a5082316
FB		 415
416#define ROP_NAME src_notxor_dst
8c78881f 417#define ROP_FN(d, s) ~((s) ^ (d))
47b43a1f 418#include "cirrus_vga_rop.h"
e6e5ad80 419
a5082316 420#define ROP_NAME src_or_notdst
8c78881f 421#define ROP_FN(d, s) (s) | (~(d))
47b43a1f 422#include "cirrus_vga_rop.h"
a5082316
FB		 423
424#define ROP_NAME notsrc
8c78881f 425#define ROP_FN(d, s) (~(s))
47b43a1f 426#include "cirrus_vga_rop.h"
a5082316
FB		 427
428#define ROP_NAME notsrc_or_dst
8c78881f 429#define ROP_FN(d, s) (~(s)) | (d)
47b43a1f 430#include "cirrus_vga_rop.h"
a5082316
FB		 431
432#define ROP_NAME notsrc_and_notdst
8c78881f 433#define ROP_FN(d, s) (~(s)) & (~(d))
47b43a1f 434#include "cirrus_vga_rop.h"
a5082316
FB		 435
436static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
437 cirrus_bitblt_rop_fwd_0,
438 cirrus_bitblt_rop_fwd_src_and_dst,
439 cirrus_bitblt_rop_nop,
440 cirrus_bitblt_rop_fwd_src_and_notdst,
441 cirrus_bitblt_rop_fwd_notdst,
442 cirrus_bitblt_rop_fwd_src,
443 cirrus_bitblt_rop_fwd_1,
444 cirrus_bitblt_rop_fwd_notsrc_and_dst,
445 cirrus_bitblt_rop_fwd_src_xor_dst,
446 cirrus_bitblt_rop_fwd_src_or_dst,
447 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
448 cirrus_bitblt_rop_fwd_src_notxor_dst,
449 cirrus_bitblt_rop_fwd_src_or_notdst,
450 cirrus_bitblt_rop_fwd_notsrc,
451 cirrus_bitblt_rop_fwd_notsrc_or_dst,
452 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
453};
454
455static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
456 cirrus_bitblt_rop_bkwd_0,
457 cirrus_bitblt_rop_bkwd_src_and_dst,
458 cirrus_bitblt_rop_nop,
459 cirrus_bitblt_rop_bkwd_src_and_notdst,
460 cirrus_bitblt_rop_bkwd_notdst,
461 cirrus_bitblt_rop_bkwd_src,
462 cirrus_bitblt_rop_bkwd_1,
463 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
464 cirrus_bitblt_rop_bkwd_src_xor_dst,
465 cirrus_bitblt_rop_bkwd_src_or_dst,
466 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
467 cirrus_bitblt_rop_bkwd_src_notxor_dst,
468 cirrus_bitblt_rop_bkwd_src_or_notdst,
469 cirrus_bitblt_rop_bkwd_notsrc,
470 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
471 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
472};
96cf2df8
TS		 473
474#define TRANSP_ROP(name) {\
475 name ## _8,\
476 name ## _16,\
477 }
478#define TRANSP_NOP(func) {\
479 func,\
480 func,\
481 }
482
483static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
484 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
485 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
486 TRANSP_NOP(cirrus_bitblt_rop_nop),
487 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
488 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
489 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
490 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
491 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
492 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
493 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
494 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
495 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
496 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
497 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
498 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
499 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
500};
501
502static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
503 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
504 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
505 TRANSP_NOP(cirrus_bitblt_rop_nop),
506 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
507 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
508 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
509 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
510 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
511 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
512 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
513 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
514 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
515 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
516 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
517 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
518 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
519};
520
a5082316
FB		 521#define ROP2(name) {\
522 name ## _8,\
523 name ## _16,\
524 name ## _24,\
525 name ## _32,\
526 }
527
528#define ROP_NOP2(func) {\
529 func,\
530 func,\
531 func,\
532 func,\
533 }
534
e69390ce
FB		 535static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
536 ROP2(cirrus_patternfill_0),
537 ROP2(cirrus_patternfill_src_and_dst),
538 ROP_NOP2(cirrus_bitblt_rop_nop),
539 ROP2(cirrus_patternfill_src_and_notdst),
540 ROP2(cirrus_patternfill_notdst),
541 ROP2(cirrus_patternfill_src),
542 ROP2(cirrus_patternfill_1),
543 ROP2(cirrus_patternfill_notsrc_and_dst),
544 ROP2(cirrus_patternfill_src_xor_dst),
545 ROP2(cirrus_patternfill_src_or_dst),
546 ROP2(cirrus_patternfill_notsrc_or_notdst),
547 ROP2(cirrus_patternfill_src_notxor_dst),
548 ROP2(cirrus_patternfill_src_or_notdst),
549 ROP2(cirrus_patternfill_notsrc),
550 ROP2(cirrus_patternfill_notsrc_or_dst),
551 ROP2(cirrus_patternfill_notsrc_and_notdst),
552};
553
a5082316
FB		 554static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
555 ROP2(cirrus_colorexpand_transp_0),
556 ROP2(cirrus_colorexpand_transp_src_and_dst),
557 ROP_NOP2(cirrus_bitblt_rop_nop),
558 ROP2(cirrus_colorexpand_transp_src_and_notdst),
559 ROP2(cirrus_colorexpand_transp_notdst),
560 ROP2(cirrus_colorexpand_transp_src),
561 ROP2(cirrus_colorexpand_transp_1),
562 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
563 ROP2(cirrus_colorexpand_transp_src_xor_dst),
564 ROP2(cirrus_colorexpand_transp_src_or_dst),
565 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
566 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
567 ROP2(cirrus_colorexpand_transp_src_or_notdst),
568 ROP2(cirrus_colorexpand_transp_notsrc),
569 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
570 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
571};
572
573static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
574 ROP2(cirrus_colorexpand_0),
575 ROP2(cirrus_colorexpand_src_and_dst),
576 ROP_NOP2(cirrus_bitblt_rop_nop),
577 ROP2(cirrus_colorexpand_src_and_notdst),
578 ROP2(cirrus_colorexpand_notdst),
579 ROP2(cirrus_colorexpand_src),
580 ROP2(cirrus_colorexpand_1),
581 ROP2(cirrus_colorexpand_notsrc_and_dst),
582 ROP2(cirrus_colorexpand_src_xor_dst),
583 ROP2(cirrus_colorexpand_src_or_dst),
584 ROP2(cirrus_colorexpand_notsrc_or_notdst),
585 ROP2(cirrus_colorexpand_src_notxor_dst),
586 ROP2(cirrus_colorexpand_src_or_notdst),
587 ROP2(cirrus_colorexpand_notsrc),
588 ROP2(cirrus_colorexpand_notsrc_or_dst),
589 ROP2(cirrus_colorexpand_notsrc_and_notdst),
590};
591
b30d4608
FB		 592static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
593 ROP2(cirrus_colorexpand_pattern_transp_0),
594 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
595 ROP_NOP2(cirrus_bitblt_rop_nop),
596 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
597 ROP2(cirrus_colorexpand_pattern_transp_notdst),
598 ROP2(cirrus_colorexpand_pattern_transp_src),
599 ROP2(cirrus_colorexpand_pattern_transp_1),
600 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
601 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
602 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
603 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
604 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
605 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
606 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
607 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
608 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
609};
610
611static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
612 ROP2(cirrus_colorexpand_pattern_0),
613 ROP2(cirrus_colorexpand_pattern_src_and_dst),
614 ROP_NOP2(cirrus_bitblt_rop_nop),
615 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
616 ROP2(cirrus_colorexpand_pattern_notdst),
617 ROP2(cirrus_colorexpand_pattern_src),
618 ROP2(cirrus_colorexpand_pattern_1),
619 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
620 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
621 ROP2(cirrus_colorexpand_pattern_src_or_dst),
622 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
623 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
624 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
625 ROP2(cirrus_colorexpand_pattern_notsrc),
626 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
627 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
628};
629
a5082316
FB		 630static const cirrus_fill_t cirrus_fill[16][4] = {
631 ROP2(cirrus_fill_0),
632 ROP2(cirrus_fill_src_and_dst),
633 ROP_NOP2(cirrus_bitblt_fill_nop),
634 ROP2(cirrus_fill_src_and_notdst),
635 ROP2(cirrus_fill_notdst),
636 ROP2(cirrus_fill_src),
637 ROP2(cirrus_fill_1),
638 ROP2(cirrus_fill_notsrc_and_dst),
639 ROP2(cirrus_fill_src_xor_dst),
640 ROP2(cirrus_fill_src_or_dst),
641 ROP2(cirrus_fill_notsrc_or_notdst),
642 ROP2(cirrus_fill_src_notxor_dst),
643 ROP2(cirrus_fill_src_or_notdst),
644 ROP2(cirrus_fill_notsrc),
645 ROP2(cirrus_fill_notsrc_or_dst),
646 ROP2(cirrus_fill_notsrc_and_notdst),
647};
648
649static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
e6e5ad80 650{
a5082316
FB		 651 unsigned int color;
652 switch (s->cirrus_blt_pixelwidth) {
653 case 1:
654 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
655 break;
656 case 2:
4e12cd94 657 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
a5082316
FB		 658 s->cirrus_blt_fgcol = le16_to_cpu(color);
659 break;
660 case 3:
5fafdf24 661 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
4e12cd94 662 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
a5082316
FB		 663 break;
664 default:
665 case 4:
4e12cd94
AK		 666 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
667 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
a5082316
FB		 668 s->cirrus_blt_fgcol = le32_to_cpu(color);
669 break;
e6e5ad80
FB		 670 }
671}
672
a5082316 673static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
e6e5ad80 674{
a5082316 675 unsigned int color;
e6e5ad80
FB		 676 switch (s->cirrus_blt_pixelwidth) {
677 case 1:
a5082316
FB		 678 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
679 break;
e6e5ad80 680 case 2:
4e12cd94 681 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
a5082316
FB		 682 s->cirrus_blt_bgcol = le16_to_cpu(color);
683 break;
e6e5ad80 684 case 3:
5fafdf24 685 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
4e12cd94 686 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
a5082316 687 break;
e6e5ad80 688 default:
a5082316 689 case 4:
4e12cd94
AK		 690 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
691 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
a5082316
FB		 692 s->cirrus_blt_bgcol = le32_to_cpu(color);
693 break;
e6e5ad80
FB		 694 }
695}
696
697static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
698 int off_pitch, int bytesperline,
699 int lines)
700{
701 int y;
702 int off_cur;
703 int off_cur_end;
704
f153b563
WB		 705 if (off_pitch < 0) {
706 off_begin -= bytesperline - 1;
707 }
708
e6e5ad80 709 for (y = 0; y < lines; y++) {
e048dac6
GH		 710 off_cur = off_begin;
711 off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1;
f153b563 712 assert(off_cur_end >= off_cur);
fd4aa979 713 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
e048dac6 714 off_begin += off_pitch;
e6e5ad80
FB		 715 }
716}
717
ffaf8577 718static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s)
e6e5ad80 719{
95280c31 720 uint32_t patternsize;
ffaf8577 721 bool videosrc = !s->cirrus_srccounter;
e6e5ad80 722
95280c31
GH		 723 if (videosrc) {
724 switch (s->vga.get_bpp(&s->vga)) {
725 case 8:
726 patternsize = 64;
727 break;
728 case 15:
729 case 16:
730 patternsize = 128;
731 break;
732 case 24:
733 case 32:
734 default:
735 patternsize = 256;
736 break;
737 }
738 s->cirrus_blt_srcaddr &= ~(patternsize - 1);
739 if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) {
740 return 0;
741 }
95280c31
GH		 742 }
743
12e97ec3 744 if (blit_is_unsafe(s, true)) {
b2eb849d 745 return 0;
5858dd18 746 }
b2eb849d 747
ffaf8577
GH		 748 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
749 videosrc ? s->cirrus_blt_srcaddr : 0,
5fafdf24 750 s->cirrus_blt_dstpitch, 0,
e69390ce 751 s->cirrus_blt_width, s->cirrus_blt_height);
e6e5ad80 752 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
e69390ce
FB		 753 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
754 s->cirrus_blt_height);
e6e5ad80
FB		 755 return 1;
756}
757
a21ae81d
FB		 758/* fill */
759
a5082316 760static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
a21ae81d 761{
a5082316 762 cirrus_fill_t rop_func;
a21ae81d 763
12e97ec3 764 if (blit_is_unsafe(s, true)) {
b2eb849d 765 return 0;
d3532a0d 766 }
a5082316 767 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
026aeffc 768 rop_func(s, s->cirrus_blt_dstaddr,
a5082316
FB		 769 s->cirrus_blt_dstpitch,
770 s->cirrus_blt_width, s->cirrus_blt_height);
a21ae81d
FB		 771 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
772 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
773 s->cirrus_blt_height);
774 cirrus_bitblt_reset(s);
775 return 1;
776}
777
e6e5ad80
FB		 778/***************************************
779 *
780 * bitblt (video-to-video)
781 *
782 ***************************************/
783
784static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
785{
ffaf8577 786 return cirrus_bitblt_common_patterncopy(s);
e6e5ad80
FB		 787}
788
4299b90e 789static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
e6e5ad80 790{
78935c4a
AJ		 791 int sx = 0, sy = 0;
792 int dx = 0, dy = 0;
793 int depth = 0;
24236869
FB		 794 int notify = 0;
795
92d675d1
AJ		 796 /* make sure to only copy if it's a plain copy ROP */
797 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
798 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
24236869 799
92d675d1
AJ		 800 int width, height;
801
802 depth = s->vga.get_bpp(&s->vga) / 8;
4299b90e
PP		 803 if (!depth) {
804 return 0;
805 }
92d675d1
AJ		 806 s->vga.get_resolution(&s->vga, &width, &height);
807
808 /* extra x, y */
809 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
810 sy = (src / ABS(s->cirrus_blt_srcpitch));
811 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
812 dy = (dst / ABS(s->cirrus_blt_dstpitch));
24236869 813
92d675d1
AJ		 814 /* normalize width */
815 w /= depth;
24236869 816
92d675d1
AJ		 817 /* if we're doing a backward copy, we have to adjust
818 our x/y to be the upper left corner (instead of the lower
819 right corner) */
820 if (s->cirrus_blt_dstpitch < 0) {
821 sx -= (s->cirrus_blt_width / depth) - 1;
822 dx -= (s->cirrus_blt_width / depth) - 1;
823 sy -= s->cirrus_blt_height - 1;
824 dy -= s->cirrus_blt_height - 1;
825 }
826
827 /* are we in the visible portion of memory? */
828 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
829 (sx + w) <= width && (sy + h) <= height &&
830 (dx + w) <= width && (dy + h) <= height) {
831 notify = 1;
832 }
833 }
24236869 834
026aeffc 835 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
ffaf8577 836 s->cirrus_blt_srcaddr,
e6e5ad80
FB		 837 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
838 s->cirrus_blt_width, s->cirrus_blt_height);
24236869 839
c78f7137 840 if (notify) {
50628d34
GH		 841 dpy_gfx_update(s->vga.con, dx, dy,
842 s->cirrus_blt_width / depth,
843 s->cirrus_blt_height);
c78f7137 844 }
24236869
FB		 845
846 /* we don't have to notify the display that this portion has
38334f76 847 changed since qemu_console_copy implies this */
24236869 848
31c05501
AL		 849 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
850 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
851 s->cirrus_blt_height);
4299b90e
PP		 852
853 return 1;
24236869
FB		 854}
855
856static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
857{
12e97ec3 858 if (blit_is_unsafe(s, false))
65d35a09
AJ		 859 return 0;
860
4299b90e 861 return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
4e12cd94 862 s->cirrus_blt_srcaddr - s->vga.start_addr,
7d957bd8 863 s->cirrus_blt_width, s->cirrus_blt_height);
e6e5ad80
FB		 864}
865
866/***************************************
867 *
868 * bitblt (cpu-to-video)
869 *
870 ***************************************/
871
e6e5ad80
FB		 872static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
873{
874 int copy_count;
a5082316 875 uint8_t *end_ptr;
3b46e624 876
e6e5ad80 877 if (s->cirrus_srccounter > 0) {
a5082316 878 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
ffaf8577 879 cirrus_bitblt_common_patterncopy(s);
a5082316
FB		 880 the_end:
881 s->cirrus_srccounter = 0;
882 cirrus_bitblt_reset(s);
883 } else {
884 /* at least one scan line */
885 do {
026aeffc 886 (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr,
ffaf8577 887 0, 0, 0, s->cirrus_blt_width, 1);
a5082316
FB		 888 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
889 s->cirrus_blt_width, 1);
890 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
891 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
892 if (s->cirrus_srccounter <= 0)
893 goto the_end;
66a0a2cb 894 /* more bytes than needed can be transferred because of
a5082316
FB		 895 word alignment, so we keep them for the next line */
896 /* XXX: keep alignment to speed up transfer */
897 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
898 copy_count = s->cirrus_srcptr_end - end_ptr;
899 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
900 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
901 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
902 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
903 }
e6e5ad80
FB		 904 }
905}
906
907/***************************************
908 *
909 * bitblt wrapper
910 *
911 ***************************************/
912
913static void cirrus_bitblt_reset(CirrusVGAState * s)
914{
f8b237af
AL		 915 int need_update;
916
4e12cd94 917 s->vga.gr[0x31] &=
e6e5ad80 918 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
f8b237af
AL		 919 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
920 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
e6e5ad80
FB		 921 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
922 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
923 s->cirrus_srccounter = 0;
f8b237af
AL		 924 if (!need_update)
925 return;
8926b517 926 cirrus_update_memory_access(s);
e6e5ad80
FB		 927}
928
929static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
930{
a5082316
FB		 931 int w;
932
92f2b88c
GH		 933 if (blit_is_unsafe(s, true)) {
934 return 0;
935 }
936
e6e5ad80
FB		 937 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
938 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
939 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
940
941 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
942 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316 943 s->cirrus_blt_srcpitch = 8;
e6e5ad80 944 } else {
b30d4608 945 /* XXX: check for 24 bpp */
a5082316 946 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
e6e5ad80 947 }
a5082316 948 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
e6e5ad80
FB		 949 } else {
950 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316 951 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
5fafdf24 952 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
a5082316
FB		 953 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
954 else
955 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
e6e5ad80 956 } else {
c9c0eae8
FB		 957 /* always align input size to 32 bits */
958 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
e6e5ad80 959 }
a5082316 960 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
e6e5ad80 961 }
92f2b88c
GH		 962
963 /* the blit_is_unsafe call above should catch this */
964 assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE);
965
a5082316
FB		 966 s->cirrus_srcptr = s->cirrus_bltbuf;
967 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
8926b517 968 cirrus_update_memory_access(s);
e6e5ad80
FB		 969 return 1;
970}
971
972static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
973{
974 /* XXX */
a5082316 975#ifdef DEBUG_BITBLT
e6e5ad80
FB		 976 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
977#endif
978 return 0;
979}
980
981static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
982{
983 int ret;
984
985 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
986 ret = cirrus_bitblt_videotovideo_patterncopy(s);
987 } else {
988 ret = cirrus_bitblt_videotovideo_copy(s);
989 }
e6e5ad80
FB		 990 if (ret)
991 cirrus_bitblt_reset(s);
992 return ret;
993}
994
995static void cirrus_bitblt_start(CirrusVGAState * s)
996{
997 uint8_t blt_rop;
998
827bd517
GH		 999 if (!s->enable_blitter) {
1000 goto bitblt_ignore;
1001 }
1002
4e12cd94 1003 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
a5082316 1004
4e12cd94
AK		 1005 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
1006 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
1007 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
1008 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
e6e5ad80 1009 s->cirrus_blt_dstaddr =
4e12cd94 1010 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
e6e5ad80 1011 s->cirrus_blt_srcaddr =
4e12cd94
AK		 1012 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
1013 s->cirrus_blt_mode = s->vga.gr[0x30];
1014 s->cirrus_blt_modeext = s->vga.gr[0x33];
1015 blt_rop = s->vga.gr[0x32];
e6e5ad80 1016
60cd23e8
GH		 1017 s->cirrus_blt_dstaddr &= s->cirrus_addr_mask;
1018 s->cirrus_blt_srcaddr &= s->cirrus_addr_mask;
1019
a21ae81d 1020#ifdef DEBUG_BITBLT
0b74ed78 1021 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",
5fafdf24 1022 blt_rop,
a21ae81d 1023 s->cirrus_blt_mode,
a5082316 1024 s->cirrus_blt_modeext,
a21ae81d
FB		 1025 s->cirrus_blt_width,
1026 s->cirrus_blt_height,
1027 s->cirrus_blt_dstpitch,
1028 s->cirrus_blt_srcpitch,
1029 s->cirrus_blt_dstaddr,
a5082316 1030 s->cirrus_blt_srcaddr,
4e12cd94 1031 s->vga.gr[0x2f]);
a21ae81d
FB		 1032#endif
1033
e6e5ad80
FB		 1034 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
1035 case CIRRUS_BLTMODE_PIXELWIDTH8:
1036 s->cirrus_blt_pixelwidth = 1;
1037 break;
1038 case CIRRUS_BLTMODE_PIXELWIDTH16:
1039 s->cirrus_blt_pixelwidth = 2;
1040 break;
1041 case CIRRUS_BLTMODE_PIXELWIDTH24:
1042 s->cirrus_blt_pixelwidth = 3;
1043 break;
1044 case CIRRUS_BLTMODE_PIXELWIDTH32:
1045 s->cirrus_blt_pixelwidth = 4;
1046 break;
1047 default:
a5082316 1048#ifdef DEBUG_BITBLT
e6e5ad80
FB		 1049 printf("cirrus: bitblt - pixel width is unknown\n");
1050#endif
1051 goto bitblt_ignore;
1052 }
1053 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
1054
1055 if ((s->
1056 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
1057 CIRRUS_BLTMODE_MEMSYSDEST))
1058 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
a5082316 1059#ifdef DEBUG_BITBLT
e6e5ad80
FB		 1060 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
1061#endif
1062 goto bitblt_ignore;
1063 }
1064
a5082316 1065 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
5fafdf24 1066 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
a21ae81d 1067 CIRRUS_BLTMODE_TRANSPARENTCOMP |
5fafdf24
TS		 1068 CIRRUS_BLTMODE_PATTERNCOPY |
1069 CIRRUS_BLTMODE_COLOREXPAND)) ==
a21ae81d 1070 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
a5082316
FB		 1071 cirrus_bitblt_fgcol(s);
1072 cirrus_bitblt_solidfill(s, blt_rop);
e6e5ad80 1073 } else {
5fafdf24
TS		 1074 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
1075 CIRRUS_BLTMODE_PATTERNCOPY)) ==
a5082316
FB		 1076 CIRRUS_BLTMODE_COLOREXPAND) {
1077
1078 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
b30d4608 1079 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
4c8732d7 1080 cirrus_bitblt_bgcol(s);
b30d4608 1081 else
4c8732d7 1082 cirrus_bitblt_fgcol(s);
b30d4608 1083 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
a5082316
FB		 1084 } else {
1085 cirrus_bitblt_fgcol(s);
1086 cirrus_bitblt_bgcol(s);
1087 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1088 }
e69390ce 1089 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
b30d4608
FB		 1090 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1091 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1092 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1093 cirrus_bitblt_bgcol(s);
1094 else
1095 cirrus_bitblt_fgcol(s);
1096 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1097 } else {
1098 cirrus_bitblt_fgcol(s);
1099 cirrus_bitblt_bgcol(s);
1100 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1101 }
1102 } else {
1103 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1104 }
a21ae81d 1105 } else {
96cf2df8
TS		 1106 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1107 if (s->cirrus_blt_pixelwidth > 2) {
1108 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1109 goto bitblt_ignore;
1110 }
1111 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1112 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1113 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1114 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1115 } else {
1116 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1117 }
1118 } else {
1119 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1120 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1121 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1122 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1123 } else {
1124 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1125 }
1126 }
1127 }
a21ae81d
FB		 1128 // setup bitblt engine.
1129 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1130 if (!cirrus_bitblt_cputovideo(s))
1131 goto bitblt_ignore;
1132 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1133 if (!cirrus_bitblt_videotocpu(s))
1134 goto bitblt_ignore;
1135 } else {
1136 if (!cirrus_bitblt_videotovideo(s))
1137 goto bitblt_ignore;
1138 }
e6e5ad80 1139 }
e6e5ad80
FB		 1140 return;
1141 bitblt_ignore:;
1142 cirrus_bitblt_reset(s);
1143}
1144
1145static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1146{
1147 unsigned old_value;
1148
4e12cd94
AK		 1149 old_value = s->vga.gr[0x31];
1150 s->vga.gr[0x31] = reg_value;
e6e5ad80
FB		 1151
1152 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1153 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1154 cirrus_bitblt_reset(s);
1155 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1156 ((reg_value & CIRRUS_BLT_START) != 0)) {
e6e5ad80
FB		 1157 cirrus_bitblt_start(s);
1158 }
1159}
1160
1161
1162/***************************************
1163 *
1164 * basic parameters
1165 *
1166 ***************************************/
1167
a4a2f59c 1168static void cirrus_get_offsets(VGACommonState *s1,
83acc96b
FB		 1169 uint32_t *pline_offset,
1170 uint32_t *pstart_addr,
1171 uint32_t *pline_compare)
e6e5ad80 1172{
4e12cd94 1173 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
83acc96b 1174 uint32_t start_addr, line_offset, line_compare;
e6e5ad80 1175
4e12cd94
AK		 1176 line_offset = s->vga.cr[0x13]
1177 | ((s->vga.cr[0x1b] & 0x10) << 4);
e6e5ad80
FB		 1178 line_offset <<= 3;
1179 *pline_offset = line_offset;
1180
4e12cd94
AK		 1181 start_addr = (s->vga.cr[0x0c] << 8)
1182 | s->vga.cr[0x0d]
1183 | ((s->vga.cr[0x1b] & 0x01) << 16)
1184 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1185 | ((s->vga.cr[0x1d] & 0x80) << 12);
e6e5ad80 1186 *pstart_addr = start_addr;
83acc96b 1187
4e12cd94
AK		 1188 line_compare = s->vga.cr[0x18] |
1189 ((s->vga.cr[0x07] & 0x10) << 4) |
1190 ((s->vga.cr[0x09] & 0x40) << 3);
83acc96b 1191 *pline_compare = line_compare;
e6e5ad80
FB		 1192}
1193
1194static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1195{
1196 uint32_t ret = 16;
1197
1198 switch (s->cirrus_hidden_dac_data & 0xf) {
1199 case 0:
1200 ret = 15;
1201 break; /* Sierra HiColor */
1202 case 1:
1203 ret = 16;
1204 break; /* XGA HiColor */
1205 default:
1206#ifdef DEBUG_CIRRUS
1207 printf("cirrus: invalid DAC value %x in 16bpp\n",
1208 (s->cirrus_hidden_dac_data & 0xf));
1209#endif
1210 ret = 15; /* XXX */
1211 break;
1212 }
1213 return ret;
1214}
1215
a4a2f59c 1216static int cirrus_get_bpp(VGACommonState *s1)
e6e5ad80 1217{
4e12cd94 1218 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
e6e5ad80
FB		 1219 uint32_t ret = 8;
1220
4e12cd94 1221 if ((s->vga.sr[0x07] & 0x01) != 0) {
e6e5ad80 1222 /* Cirrus SVGA */
4e12cd94 1223 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
e6e5ad80
FB		 1224 case CIRRUS_SR7_BPP_8:
1225 ret = 8;
1226 break;
1227 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1228 ret = cirrus_get_bpp16_depth(s);
1229 break;
1230 case CIRRUS_SR7_BPP_24:
1231 ret = 24;
1232 break;
1233 case CIRRUS_SR7_BPP_16:
1234 ret = cirrus_get_bpp16_depth(s);
1235 break;
1236 case CIRRUS_SR7_BPP_32:
1237 ret = 32;
1238 break;
1239 default:
1240#ifdef DEBUG_CIRRUS
4e12cd94 1241 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
e6e5ad80
FB		 1242#endif
1243 ret = 8;
1244 break;
1245 }
1246 } else {
1247 /* VGA */
aeb3c85f 1248 ret = 0;
e6e5ad80
FB		 1249 }
1250
1251 return ret;
1252}
1253
a4a2f59c 1254static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
78e127ef
FB		 1255{
1256 int width, height;
3b46e624 1257
78e127ef 1258 width = (s->cr[0x01] + 1) * 8;
5fafdf24
TS		 1259 height = s->cr[0x12] |
1260 ((s->cr[0x07] & 0x02) << 7) |
78e127ef
FB		 1261 ((s->cr[0x07] & 0x40) << 3);
1262 height = (height + 1);
1263 /* interlace support */
1264 if (s->cr[0x1a] & 0x01)
1265 height = height * 2;
1266 *pwidth = width;
1267 *pheight = height;
1268}
1269
e6e5ad80
FB		 1270/***************************************
1271 *
1272 * bank memory
1273 *
1274 ***************************************/
1275
1276static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1277{
1278 unsigned offset;
1279 unsigned limit;
1280
4e12cd94
AK		 1281 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1282 offset = s->vga.gr[0x09 + bank_index];
e6e5ad80 1283 else /* single bank */
4e12cd94 1284 offset = s->vga.gr[0x09];
e6e5ad80 1285
4e12cd94 1286 if ((s->vga.gr[0x0b] & 0x20) != 0)
e6e5ad80
FB		 1287 offset <<= 14;
1288 else
1289 offset <<= 12;
1290
e3a4e4b6 1291 if (s->real_vram_size <= offset)
e6e5ad80
FB		 1292 limit = 0;
1293 else
e3a4e4b6 1294 limit = s->real_vram_size - offset;
e6e5ad80 1295
4e12cd94 1296 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
e6e5ad80
FB		 1297 if (limit > 0x8000) {
1298 offset += 0x8000;
1299 limit -= 0x8000;
1300 } else {
1301 limit = 0;
1302 }
1303 }
1304
1305 if (limit > 0) {
1306 s->cirrus_bank_base[bank_index] = offset;
1307 s->cirrus_bank_limit[bank_index] = limit;
1308 } else {
1309 s->cirrus_bank_base[bank_index] = 0;
1310 s->cirrus_bank_limit[bank_index] = 0;
1311 }
1312}
1313
1314/***************************************
1315 *
1316 * I/O access between 0x3c4-0x3c5
1317 *
1318 ***************************************/
1319
8a82c322 1320static int cirrus_vga_read_sr(CirrusVGAState * s)
e6e5ad80 1321{
8a82c322 1322 switch (s->vga.sr_index) {
e6e5ad80
FB		 1323 case 0x00: // Standard VGA
1324 case 0x01: // Standard VGA
1325 case 0x02: // Standard VGA
1326 case 0x03: // Standard VGA
1327 case 0x04: // Standard VGA
8a82c322 1328 return s->vga.sr[s->vga.sr_index];
e6e5ad80 1329 case 0x06: // Unlock Cirrus extensions
8a82c322 1330 return s->vga.sr[s->vga.sr_index];
e6e5ad80
FB		 1331 case 0x10:
1332 case 0x30:
1333 case 0x50:
1334 case 0x70: // Graphics Cursor X
1335 case 0x90:
1336 case 0xb0:
1337 case 0xd0:
1338 case 0xf0: // Graphics Cursor X
8a82c322 1339 return s->vga.sr[0x10];
e6e5ad80
FB		 1340 case 0x11:
1341 case 0x31:
1342 case 0x51:
1343 case 0x71: // Graphics Cursor Y
1344 case 0x91:
1345 case 0xb1:
1346 case 0xd1:
a5082316 1347 case 0xf1: // Graphics Cursor Y
8a82c322 1348 return s->vga.sr[0x11];
aeb3c85f
FB		 1349 case 0x05: // ???
1350 case 0x07: // Extended Sequencer Mode
1351 case 0x08: // EEPROM Control
1352 case 0x09: // Scratch Register 0
1353 case 0x0a: // Scratch Register 1
1354 case 0x0b: // VCLK 0
1355 case 0x0c: // VCLK 1
1356 case 0x0d: // VCLK 2
1357 case 0x0e: // VCLK 3
1358 case 0x0f: // DRAM Control
e6e5ad80
FB		 1359 case 0x12: // Graphics Cursor Attribute
1360 case 0x13: // Graphics Cursor Pattern Address
1361 case 0x14: // Scratch Register 2
1362 case 0x15: // Scratch Register 3
1363 case 0x16: // Performance Tuning Register
1364 case 0x17: // Configuration Readback and Extended Control
1365 case 0x18: // Signature Generator Control
1366 case 0x19: // Signal Generator Result
1367 case 0x1a: // Signal Generator Result
1368 case 0x1b: // VCLK 0 Denominator & Post
1369 case 0x1c: // VCLK 1 Denominator & Post
1370 case 0x1d: // VCLK 2 Denominator & Post
1371 case 0x1e: // VCLK 3 Denominator & Post
1372 case 0x1f: // BIOS Write Enable and MCLK select
1373#ifdef DEBUG_CIRRUS
8a82c322 1374 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
e6e5ad80 1375#endif
8a82c322 1376 return s->vga.sr[s->vga.sr_index];
e6e5ad80
FB		 1377 default:
1378#ifdef DEBUG_CIRRUS
8a82c322 1379 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
e6e5ad80 1380#endif
8a82c322 1381 return 0xff;
e6e5ad80
FB		 1382 break;
1383 }
e6e5ad80
FB		 1384}
1385
31c63201 1386static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
e6e5ad80 1387{
31c63201 1388 switch (s->vga.sr_index) {
e6e5ad80
FB		 1389 case 0x00: // Standard VGA
1390 case 0x01: // Standard VGA
1391 case 0x02: // Standard VGA
1392 case 0x03: // Standard VGA
1393 case 0x04: // Standard VGA
31c63201
JQ		 1394 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1395 if (s->vga.sr_index == 1)
1396 s->vga.update_retrace_info(&s->vga);
1397 break;
e6e5ad80 1398 case 0x06: // Unlock Cirrus extensions
31c63201
JQ		 1399 val &= 0x17;
1400 if (val == 0x12) {
1401 s->vga.sr[s->vga.sr_index] = 0x12;
e6e5ad80 1402 } else {
31c63201 1403 s->vga.sr[s->vga.sr_index] = 0x0f;
e6e5ad80
FB		 1404 }
1405 break;
1406 case 0x10:
1407 case 0x30:
1408 case 0x50:
1409 case 0x70: // Graphics Cursor X
1410 case 0x90:
1411 case 0xb0:
1412 case 0xd0:
1413 case 0xf0: // Graphics Cursor X
31c63201 1414 s->vga.sr[0x10] = val;
22382bb9 1415 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
e6e5ad80
FB		 1416 break;
1417 case 0x11:
1418 case 0x31:
1419 case 0x51:
1420 case 0x71: // Graphics Cursor Y
1421 case 0x91:
1422 case 0xb1:
1423 case 0xd1:
1424 case 0xf1: // Graphics Cursor Y
31c63201 1425 s->vga.sr[0x11] = val;
22382bb9 1426 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
e6e5ad80
FB		 1427 break;
1428 case 0x07: // Extended Sequencer Mode
edd7541b
PB		 1429 cirrus_update_memory_access(s);
1430 /* fall through */
e6e5ad80
FB		 1431 case 0x08: // EEPROM Control
1432 case 0x09: // Scratch Register 0
1433 case 0x0a: // Scratch Register 1
1434 case 0x0b: // VCLK 0
1435 case 0x0c: // VCLK 1
1436 case 0x0d: // VCLK 2
1437 case 0x0e: // VCLK 3
1438 case 0x0f: // DRAM Control
e6e5ad80
FB		 1439 case 0x13: // Graphics Cursor Pattern Address
1440 case 0x14: // Scratch Register 2
1441 case 0x15: // Scratch Register 3
1442 case 0x16: // Performance Tuning Register
e6e5ad80
FB		 1443 case 0x18: // Signature Generator Control
1444 case 0x19: // Signature Generator Result
1445 case 0x1a: // Signature Generator Result
1446 case 0x1b: // VCLK 0 Denominator & Post
1447 case 0x1c: // VCLK 1 Denominator & Post
1448 case 0x1d: // VCLK 2 Denominator & Post
1449 case 0x1e: // VCLK 3 Denominator & Post
1450 case 0x1f: // BIOS Write Enable and MCLK select
31c63201 1451 s->vga.sr[s->vga.sr_index] = val;
e6e5ad80
FB		 1452#ifdef DEBUG_CIRRUS
1453 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
31c63201 1454 s->vga.sr_index, val);
e6e5ad80
FB		 1455#endif
1456 break;
b9fd11b8
BH		 1457 case 0x12: // Graphics Cursor Attribute
1458 s->vga.sr[0x12] = val;
1459 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
1460#ifdef DEBUG_CIRRUS
1461 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
1462 val, s->vga.force_shadow);
1463#endif
1464 break;
8926b517 1465 case 0x17: // Configuration Readback and Extended Control
31c63201
JQ		 1466 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1467 | (val & 0xc7);
8926b517
FB		 1468 cirrus_update_memory_access(s);
1469 break;
e6e5ad80
FB		 1470 default:
1471#ifdef DEBUG_CIRRUS
31c63201
JQ		 1472 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1473 s->vga.sr_index, val);
e6e5ad80
FB		 1474#endif
1475 break;
1476 }
e6e5ad80
FB		 1477}
1478
1479/***************************************
1480 *
1481 * I/O access at 0x3c6
1482 *
1483 ***************************************/
1484
957c9db5 1485static int cirrus_read_hidden_dac(CirrusVGAState * s)
e6e5ad80 1486{
a21ae81d 1487 if (++s->cirrus_hidden_dac_lockindex == 5) {
957c9db5
JQ		 1488 s->cirrus_hidden_dac_lockindex = 0;
1489 return s->cirrus_hidden_dac_data;
e6e5ad80 1490 }
957c9db5 1491 return 0xff;
e6e5ad80
FB		 1492}
1493
1494static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1495{
1496 if (s->cirrus_hidden_dac_lockindex == 4) {
1497 s->cirrus_hidden_dac_data = reg_value;
a21ae81d 1498#if defined(DEBUG_CIRRUS)
e6e5ad80
FB		 1499 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1500#endif
1501 }
1502 s->cirrus_hidden_dac_lockindex = 0;
1503}
1504
1505/***************************************
1506 *
1507 * I/O access at 0x3c9
1508 *
1509 ***************************************/
1510
5deaeee3 1511static int cirrus_vga_read_palette(CirrusVGAState * s)
e6e5ad80 1512{
5deaeee3
JQ		 1513 int val;
1514
1515 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1516 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1517 s->vga.dac_sub_index];
1518 } else {
1519 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1520 }
4e12cd94
AK		 1521 if (++s->vga.dac_sub_index == 3) {
1522 s->vga.dac_sub_index = 0;
1523 s->vga.dac_read_index++;
e6e5ad80 1524 }
5deaeee3 1525 return val;
e6e5ad80
FB		 1526}
1527
86948bb1 1528static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
e6e5ad80 1529{
4e12cd94
AK		 1530 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1531 if (++s->vga.dac_sub_index == 3) {
86948bb1
JQ		 1532 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1533 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1534 s->vga.dac_cache, 3);
1535 } else {
1536 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1537 }
a5082316 1538 /* XXX update cursor */
4e12cd94
AK		 1539 s->vga.dac_sub_index = 0;
1540 s->vga.dac_write_index++;
e6e5ad80 1541 }
e6e5ad80
FB		 1542}
1543
1544/***************************************
1545 *
1546 * I/O access between 0x3ce-0x3cf
1547 *
1548 ***************************************/
1549
f705db9d 1550static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
e6e5ad80
FB		 1551{
1552 switch (reg_index) {
aeb3c85f 1553 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
f705db9d 1554 return s->cirrus_shadow_gr0;
aeb3c85f 1555 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
f705db9d 1556 return s->cirrus_shadow_gr1;
e6e5ad80
FB		 1557 case 0x02: // Standard VGA
1558 case 0x03: // Standard VGA
1559 case 0x04: // Standard VGA
1560 case 0x06: // Standard VGA
1561 case 0x07: // Standard VGA
1562 case 0x08: // Standard VGA
f705db9d 1563 return s->vga.gr[s->vga.gr_index];
e6e5ad80
FB		 1564 case 0x05: // Standard VGA, Cirrus extended mode
1565 default:
1566 break;
1567 }
1568
1569 if (reg_index < 0x3a) {
f705db9d 1570 return s->vga.gr[reg_index];
e6e5ad80
FB		 1571 } else {
1572#ifdef DEBUG_CIRRUS
1573 printf("cirrus: inport gr_index %02x\n", reg_index);
1574#endif
f705db9d 1575 return 0xff;
e6e5ad80 1576 }
e6e5ad80
FB		 1577}
1578
22286bc6
JQ		 1579static void
1580cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
e6e5ad80 1581{
a5082316
FB		 1582#if defined(DEBUG_BITBLT) && 0
1583 printf("gr%02x: %02x\n", reg_index, reg_value);
1584#endif
e6e5ad80
FB		 1585 switch (reg_index) {
1586 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
f22f5b07 1587 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
aeb3c85f 1588 s->cirrus_shadow_gr0 = reg_value;
22286bc6 1589 break;
e6e5ad80 1590 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
f22f5b07 1591 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
aeb3c85f 1592 s->cirrus_shadow_gr1 = reg_value;
22286bc6 1593 break;
e6e5ad80
FB		 1594 case 0x02: // Standard VGA
1595 case 0x03: // Standard VGA
1596 case 0x04: // Standard VGA
1597 case 0x06: // Standard VGA
1598 case 0x07: // Standard VGA
1599 case 0x08: // Standard VGA
22286bc6
JQ		 1600 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1601 break;
e6e5ad80 1602 case 0x05: // Standard VGA, Cirrus extended mode
4e12cd94 1603 s->vga.gr[reg_index] = reg_value & 0x7f;
8926b517 1604 cirrus_update_memory_access(s);
e6e5ad80
FB		 1605 break;
1606 case 0x09: // bank offset #0
1607 case 0x0A: // bank offset #1
4e12cd94 1608 s->vga.gr[reg_index] = reg_value;
8926b517
FB		 1609 cirrus_update_bank_ptr(s, 0);
1610 cirrus_update_bank_ptr(s, 1);
2bec46dc 1611 cirrus_update_memory_access(s);
8926b517 1612 break;
e6e5ad80 1613 case 0x0B:
4e12cd94 1614 s->vga.gr[reg_index] = reg_value;
e6e5ad80
FB		 1615 cirrus_update_bank_ptr(s, 0);
1616 cirrus_update_bank_ptr(s, 1);
8926b517 1617 cirrus_update_memory_access(s);
e6e5ad80
FB		 1618 break;
1619 case 0x10: // BGCOLOR 0x0000ff00
1620 case 0x11: // FGCOLOR 0x0000ff00
1621 case 0x12: // BGCOLOR 0x00ff0000
1622 case 0x13: // FGCOLOR 0x00ff0000
1623 case 0x14: // BGCOLOR 0xff000000
1624 case 0x15: // FGCOLOR 0xff000000
1625 case 0x20: // BLT WIDTH 0x0000ff
1626 case 0x22: // BLT HEIGHT 0x0000ff
1627 case 0x24: // BLT DEST PITCH 0x0000ff
1628 case 0x26: // BLT SRC PITCH 0x0000ff
1629 case 0x28: // BLT DEST ADDR 0x0000ff
1630 case 0x29: // BLT DEST ADDR 0x00ff00
1631 case 0x2c: // BLT SRC ADDR 0x0000ff
1632 case 0x2d: // BLT SRC ADDR 0x00ff00
a5082316 1633 case 0x2f: // BLT WRITEMASK
e6e5ad80
FB		 1634 case 0x30: // BLT MODE
1635 case 0x32: // RASTER OP
a21ae81d 1636 case 0x33: // BLT MODEEXT
e6e5ad80
FB		 1637 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1638 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1639 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1640 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
4e12cd94 1641 s->vga.gr[reg_index] = reg_value;
e6e5ad80
FB		 1642 break;
1643 case 0x21: // BLT WIDTH 0x001f00
1644 case 0x23: // BLT HEIGHT 0x001f00
1645 case 0x25: // BLT DEST PITCH 0x001f00
1646 case 0x27: // BLT SRC PITCH 0x001f00
4e12cd94 1647 s->vga.gr[reg_index] = reg_value & 0x1f;
e6e5ad80
FB		 1648 break;
1649 case 0x2a: // BLT DEST ADDR 0x3f0000
4e12cd94 1650 s->vga.gr[reg_index] = reg_value & 0x3f;
a5082316 1651 /* if auto start mode, starts bit blt now */
4e12cd94 1652 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
a5082316
FB		 1653 cirrus_bitblt_start(s);
1654 }
1655 break;
e6e5ad80 1656 case 0x2e: // BLT SRC ADDR 0x3f0000
4e12cd94 1657 s->vga.gr[reg_index] = reg_value & 0x3f;
e6e5ad80
FB		 1658 break;
1659 case 0x31: // BLT STATUS/START
1660 cirrus_write_bitblt(s, reg_value);
1661 break;
1662 default:
1663#ifdef DEBUG_CIRRUS
1664 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1665 reg_value);
1666#endif
1667 break;
1668 }
e6e5ad80
FB		 1669}
1670
1671/***************************************
1672 *
1673 * I/O access between 0x3d4-0x3d5
1674 *
1675 ***************************************/
1676
b863d514 1677static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
e6e5ad80
FB		 1678{
1679 switch (reg_index) {
1680 case 0x00: // Standard VGA
1681 case 0x01: // Standard VGA
1682 case 0x02: // Standard VGA
1683 case 0x03: // Standard VGA
1684 case 0x04: // Standard VGA
1685 case 0x05: // Standard VGA
1686 case 0x06: // Standard VGA
1687 case 0x07: // Standard VGA
1688 case 0x08: // Standard VGA
1689 case 0x09: // Standard VGA
1690 case 0x0a: // Standard VGA
1691 case 0x0b: // Standard VGA
1692 case 0x0c: // Standard VGA
1693 case 0x0d: // Standard VGA
1694 case 0x0e: // Standard VGA
1695 case 0x0f: // Standard VGA
1696 case 0x10: // Standard VGA
1697 case 0x11: // Standard VGA
1698 case 0x12: // Standard VGA
1699 case 0x13: // Standard VGA
1700 case 0x14: // Standard VGA
1701 case 0x15: // Standard VGA
1702 case 0x16: // Standard VGA
1703 case 0x17: // Standard VGA
1704 case 0x18: // Standard VGA
b863d514 1705 return s->vga.cr[s->vga.cr_index];
ca896ef3 1706 case 0x24: // Attribute Controller Toggle Readback (R)
b863d514 1707 return (s->vga.ar_flip_flop << 7);
e6e5ad80
FB		 1708 case 0x19: // Interlace End
1709 case 0x1a: // Miscellaneous Control
1710 case 0x1b: // Extended Display Control
1711 case 0x1c: // Sync Adjust and Genlock
1712 case 0x1d: // Overlay Extended Control
1713 case 0x22: // Graphics Data Latches Readback (R)
e6e5ad80
FB		 1714 case 0x25: // Part Status
1715 case 0x27: // Part ID (R)
b863d514 1716 return s->vga.cr[s->vga.cr_index];
e6e5ad80 1717 case 0x26: // Attribute Controller Index Readback (R)
b863d514 1718 return s->vga.ar_index & 0x3f;
e6e5ad80
FB		 1719 break;
1720 default:
1721#ifdef DEBUG_CIRRUS
1722 printf("cirrus: inport cr_index %02x\n", reg_index);
e6e5ad80 1723#endif
b863d514 1724 return 0xff;
e6e5ad80 1725 }
e6e5ad80
FB		 1726}
1727
4ec1ce04 1728static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
e6e5ad80 1729{
4ec1ce04 1730 switch (s->vga.cr_index) {
e6e5ad80
FB		 1731 case 0x00: // Standard VGA
1732 case 0x01: // Standard VGA
1733 case 0x02: // Standard VGA
1734 case 0x03: // Standard VGA
1735 case 0x04: // Standard VGA
1736 case 0x05: // Standard VGA
1737 case 0x06: // Standard VGA
1738 case 0x07: // Standard VGA
1739 case 0x08: // Standard VGA
1740 case 0x09: // Standard VGA
1741 case 0x0a: // Standard VGA
1742 case 0x0b: // Standard VGA
1743 case 0x0c: // Standard VGA
1744 case 0x0d: // Standard VGA
1745 case 0x0e: // Standard VGA
1746 case 0x0f: // Standard VGA
1747 case 0x10: // Standard VGA
1748 case 0x11: // Standard VGA
1749 case 0x12: // Standard VGA
1750 case 0x13: // Standard VGA
1751 case 0x14: // Standard VGA
1752 case 0x15: // Standard VGA
1753 case 0x16: // Standard VGA
1754 case 0x17: // Standard VGA
1755 case 0x18: // Standard VGA
4ec1ce04
JQ		 1756 /* handle CR0-7 protection */
1757 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1758 /* can always write bit 4 of CR7 */
1759 if (s->vga.cr_index == 7)
1760 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1761 return;
1762 }
1763 s->vga.cr[s->vga.cr_index] = reg_value;
1764 switch(s->vga.cr_index) {
1765 case 0x00:
1766 case 0x04:
1767 case 0x05:
1768 case 0x06:
1769 case 0x07:
1770 case 0x11:
1771 case 0x17:
1772 s->vga.update_retrace_info(&s->vga);
1773 break;
1774 }
1775 break;
e6e5ad80
FB		 1776 case 0x19: // Interlace End
1777 case 0x1a: // Miscellaneous Control
1778 case 0x1b: // Extended Display Control
1779 case 0x1c: // Sync Adjust and Genlock
ae184e4a 1780 case 0x1d: // Overlay Extended Control
4ec1ce04 1781 s->vga.cr[s->vga.cr_index] = reg_value;
e6e5ad80
FB		 1782#ifdef DEBUG_CIRRUS
1783 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
4ec1ce04 1784 s->vga.cr_index, reg_value);
e6e5ad80
FB		 1785#endif
1786 break;
1787 case 0x22: // Graphics Data Latches Readback (R)
1788 case 0x24: // Attribute Controller Toggle Readback (R)
1789 case 0x26: // Attribute Controller Index Readback (R)
1790 case 0x27: // Part ID (R)
1791 break;
e6e5ad80
FB		 1792 case 0x25: // Part Status
1793 default:
1794#ifdef DEBUG_CIRRUS
4ec1ce04
JQ		 1795 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1796 s->vga.cr_index, reg_value);
e6e5ad80
FB		 1797#endif
1798 break;
1799 }
e6e5ad80
FB		 1800}
1801
1802/***************************************
1803 *
1804 * memory-mapped I/O (bitblt)
1805 *
1806 ***************************************/
1807
1808static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1809{
1810 int value = 0xff;
1811
1812 switch (address) {
1813 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
f705db9d 1814 value = cirrus_vga_read_gr(s, 0x00);
e6e5ad80
FB		 1815 break;
1816 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
f705db9d 1817 value = cirrus_vga_read_gr(s, 0x10);
e6e5ad80
FB		 1818 break;
1819 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
f705db9d 1820 value = cirrus_vga_read_gr(s, 0x12);
e6e5ad80
FB		 1821 break;
1822 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
f705db9d 1823 value = cirrus_vga_read_gr(s, 0x14);
e6e5ad80
FB		 1824 break;
1825 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
f705db9d 1826 value = cirrus_vga_read_gr(s, 0x01);
e6e5ad80
FB		 1827 break;
1828 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
f705db9d 1829 value = cirrus_vga_read_gr(s, 0x11);
e6e5ad80
FB		 1830 break;
1831 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
f705db9d 1832 value = cirrus_vga_read_gr(s, 0x13);
e6e5ad80
FB		 1833 break;
1834 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
f705db9d 1835 value = cirrus_vga_read_gr(s, 0x15);
e6e5ad80
FB		 1836 break;
1837 case (CIRRUS_MMIO_BLTWIDTH + 0):
f705db9d 1838 value = cirrus_vga_read_gr(s, 0x20);
e6e5ad80
FB		 1839 break;
1840 case (CIRRUS_MMIO_BLTWIDTH + 1):
f705db9d 1841 value = cirrus_vga_read_gr(s, 0x21);
e6e5ad80
FB		 1842 break;
1843 case (CIRRUS_MMIO_BLTHEIGHT + 0):
f705db9d 1844 value = cirrus_vga_read_gr(s, 0x22);
e6e5ad80
FB		 1845 break;
1846 case (CIRRUS_MMIO_BLTHEIGHT + 1):
f705db9d 1847 value = cirrus_vga_read_gr(s, 0x23);
e6e5ad80
FB		 1848 break;
1849 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
f705db9d 1850 value = cirrus_vga_read_gr(s, 0x24);
e6e5ad80
FB		 1851 break;
1852 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
f705db9d 1853 value = cirrus_vga_read_gr(s, 0x25);
e6e5ad80
FB		 1854 break;
1855 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
f705db9d 1856 value = cirrus_vga_read_gr(s, 0x26);
e6e5ad80
FB		 1857 break;
1858 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
f705db9d 1859 value = cirrus_vga_read_gr(s, 0x27);
e6e5ad80
FB		 1860 break;
1861 case (CIRRUS_MMIO_BLTDESTADDR + 0):
f705db9d 1862 value = cirrus_vga_read_gr(s, 0x28);
e6e5ad80
FB		 1863 break;
1864 case (CIRRUS_MMIO_BLTDESTADDR + 1):
f705db9d 1865 value = cirrus_vga_read_gr(s, 0x29);
e6e5ad80
FB		 1866 break;
1867 case (CIRRUS_MMIO_BLTDESTADDR + 2):
f705db9d 1868 value = cirrus_vga_read_gr(s, 0x2a);
e6e5ad80
FB		 1869 break;
1870 case (CIRRUS_MMIO_BLTSRCADDR + 0):
f705db9d 1871 value = cirrus_vga_read_gr(s, 0x2c);
e6e5ad80
FB		 1872 break;
1873 case (CIRRUS_MMIO_BLTSRCADDR + 1):
f705db9d 1874 value = cirrus_vga_read_gr(s, 0x2d);
e6e5ad80
FB		 1875 break;
1876 case (CIRRUS_MMIO_BLTSRCADDR + 2):
f705db9d 1877 value = cirrus_vga_read_gr(s, 0x2e);
e6e5ad80
FB		 1878 break;
1879 case CIRRUS_MMIO_BLTWRITEMASK:
f705db9d 1880 value = cirrus_vga_read_gr(s, 0x2f);
e6e5ad80
FB		 1881 break;
1882 case CIRRUS_MMIO_BLTMODE:
f705db9d 1883 value = cirrus_vga_read_gr(s, 0x30);
e6e5ad80
FB		 1884 break;
1885 case CIRRUS_MMIO_BLTROP:
f705db9d 1886 value = cirrus_vga_read_gr(s, 0x32);
e6e5ad80 1887 break;
a21ae81d 1888 case CIRRUS_MMIO_BLTMODEEXT:
f705db9d 1889 value = cirrus_vga_read_gr(s, 0x33);
a21ae81d 1890 break;
e6e5ad80 1891 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
f705db9d 1892 value = cirrus_vga_read_gr(s, 0x34);
e6e5ad80
FB		 1893 break;
1894 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
f705db9d 1895 value = cirrus_vga_read_gr(s, 0x35);
e6e5ad80
FB		 1896 break;
1897 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
f705db9d 1898 value = cirrus_vga_read_gr(s, 0x38);
e6e5ad80
FB		 1899 break;
1900 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
f705db9d 1901 value = cirrus_vga_read_gr(s, 0x39);
e6e5ad80
FB		 1902 break;
1903 case CIRRUS_MMIO_BLTSTATUS:
f705db9d 1904 value = cirrus_vga_read_gr(s, 0x31);
e6e5ad80
FB		 1905 break;
1906 default:
1907#ifdef DEBUG_CIRRUS
1908 printf("cirrus: mmio read - address 0x%04x\n", address);
1909#endif
1910 break;
1911 }
1912
ec87f206 1913 trace_vga_cirrus_write_blt(address, value);
e6e5ad80
FB		 1914 return (uint8_t) value;
1915}
1916
1917static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1918 uint8_t value)
1919{
ec87f206 1920 trace_vga_cirrus_write_blt(address, value);
e6e5ad80
FB		 1921 switch (address) {
1922 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
22286bc6 1923 cirrus_vga_write_gr(s, 0x00, value);
e6e5ad80
FB		 1924 break;
1925 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
22286bc6 1926 cirrus_vga_write_gr(s, 0x10, value);
e6e5ad80
FB		 1927 break;
1928 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
22286bc6 1929 cirrus_vga_write_gr(s, 0x12, value);
e6e5ad80
FB		 1930 break;
1931 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
22286bc6 1932 cirrus_vga_write_gr(s, 0x14, value);
e6e5ad80
FB		 1933 break;
1934 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
22286bc6 1935 cirrus_vga_write_gr(s, 0x01, value);
e6e5ad80
FB		 1936 break;
1937 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
22286bc6 1938 cirrus_vga_write_gr(s, 0x11, value);
e6e5ad80
FB		 1939 break;
1940 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
22286bc6 1941 cirrus_vga_write_gr(s, 0x13, value);
e6e5ad80
FB		 1942 break;
1943 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
22286bc6 1944 cirrus_vga_write_gr(s, 0x15, value);
e6e5ad80
FB		 1945 break;
1946 case (CIRRUS_MMIO_BLTWIDTH + 0):
22286bc6 1947 cirrus_vga_write_gr(s, 0x20, value);
e6e5ad80
FB		 1948 break;
1949 case (CIRRUS_MMIO_BLTWIDTH + 1):
22286bc6 1950 cirrus_vga_write_gr(s, 0x21, value);
e6e5ad80
FB		 1951 break;
1952 case (CIRRUS_MMIO_BLTHEIGHT + 0):
22286bc6 1953 cirrus_vga_write_gr(s, 0x22, value);
e6e5ad80
FB		 1954 break;
1955 case (CIRRUS_MMIO_BLTHEIGHT + 1):
22286bc6 1956 cirrus_vga_write_gr(s, 0x23, value);
e6e5ad80
FB		 1957 break;
1958 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
22286bc6 1959 cirrus_vga_write_gr(s, 0x24, value);
e6e5ad80
FB		 1960 break;
1961 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
22286bc6 1962 cirrus_vga_write_gr(s, 0x25, value);
e6e5ad80
FB		 1963 break;
1964 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
22286bc6 1965 cirrus_vga_write_gr(s, 0x26, value);
e6e5ad80
FB		 1966 break;
1967 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
22286bc6 1968 cirrus_vga_write_gr(s, 0x27, value);
e6e5ad80
FB		 1969 break;
1970 case (CIRRUS_MMIO_BLTDESTADDR + 0):
22286bc6 1971 cirrus_vga_write_gr(s, 0x28, value);
e6e5ad80
FB		 1972 break;
1973 case (CIRRUS_MMIO_BLTDESTADDR + 1):
22286bc6 1974 cirrus_vga_write_gr(s, 0x29, value);
e6e5ad80
FB		 1975 break;
1976 case (CIRRUS_MMIO_BLTDESTADDR + 2):
22286bc6 1977 cirrus_vga_write_gr(s, 0x2a, value);
e6e5ad80
FB		 1978 break;
1979 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1980 /* ignored */
1981 break;
1982 case (CIRRUS_MMIO_BLTSRCADDR + 0):
22286bc6 1983 cirrus_vga_write_gr(s, 0x2c, value);
e6e5ad80
FB		 1984 break;
1985 case (CIRRUS_MMIO_BLTSRCADDR + 1):
22286bc6 1986 cirrus_vga_write_gr(s, 0x2d, value);
e6e5ad80
FB		 1987 break;
1988 case (CIRRUS_MMIO_BLTSRCADDR + 2):
22286bc6 1989 cirrus_vga_write_gr(s, 0x2e, value);
e6e5ad80
FB		 1990 break;
1991 case CIRRUS_MMIO_BLTWRITEMASK:
22286bc6 1992 cirrus_vga_write_gr(s, 0x2f, value);
e6e5ad80
FB		 1993 break;
1994 case CIRRUS_MMIO_BLTMODE:
22286bc6 1995 cirrus_vga_write_gr(s, 0x30, value);
e6e5ad80
FB		 1996 break;
1997 case CIRRUS_MMIO_BLTROP:
22286bc6 1998 cirrus_vga_write_gr(s, 0x32, value);
e6e5ad80 1999 break;
a21ae81d 2000 case CIRRUS_MMIO_BLTMODEEXT:
22286bc6 2001 cirrus_vga_write_gr(s, 0x33, value);
a21ae81d 2002 break;
e6e5ad80 2003 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
22286bc6 2004 cirrus_vga_write_gr(s, 0x34, value);
e6e5ad80
FB		 2005 break;
2006 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
22286bc6 2007 cirrus_vga_write_gr(s, 0x35, value);
e6e5ad80
FB		 2008 break;
2009 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
22286bc6 2010 cirrus_vga_write_gr(s, 0x38, value);
e6e5ad80
FB		 2011 break;
2012 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
22286bc6 2013 cirrus_vga_write_gr(s, 0x39, value);
e6e5ad80
FB		 2014 break;
2015 case CIRRUS_MMIO_BLTSTATUS:
22286bc6 2016 cirrus_vga_write_gr(s, 0x31, value);
e6e5ad80
FB		 2017 break;
2018 default:
2019#ifdef DEBUG_CIRRUS
2020 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
2021 address, value);
2022#endif
2023 break;
2024 }
2025}
2026
e6e5ad80
FB		 2027/***************************************
2028 *
2029 * write mode 4/5
2030 *
e6e5ad80
FB		 2031 ***************************************/
2032
2033static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
2034 unsigned mode,
2035 unsigned offset,
2036 uint32_t mem_value)
2037{
2038 int x;
2039 unsigned val = mem_value;
2040 uint8_t *dst;
2041
e6e5ad80 2042 for (x = 0; x < 8; x++) {
eb38e1bc 2043 dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask);
e6e5ad80 2044 if (val & 0x80) {
0b74ed78 2045 *dst = s->cirrus_shadow_gr1;
e6e5ad80 2046 } else if (mode == 5) {
0b74ed78 2047 *dst = s->cirrus_shadow_gr0;
e6e5ad80
FB		 2048 }
2049 val <<= 1;
2050 }
fd4aa979 2051 memory_region_set_dirty(&s->vga.vram, offset, 8);
e6e5ad80
FB		 2052}
2053
2054static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
2055 unsigned mode,
2056 unsigned offset,
2057 uint32_t mem_value)
2058{
2059 int x;
2060 unsigned val = mem_value;
2061 uint8_t *dst;
2062
e6e5ad80 2063 for (x = 0; x < 8; x++) {
eb38e1bc 2064 dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1);
e6e5ad80 2065 if (val & 0x80) {
0b74ed78 2066 *dst = s->cirrus_shadow_gr1;
4e12cd94 2067 *(dst + 1) = s->vga.gr[0x11];
e6e5ad80 2068 } else if (mode == 5) {
0b74ed78 2069 *dst = s->cirrus_shadow_gr0;
4e12cd94 2070 *(dst + 1) = s->vga.gr[0x10];
e6e5ad80
FB		 2071 }
2072 val <<= 1;
2073 }
fd4aa979 2074 memory_region_set_dirty(&s->vga.vram, offset, 16);
e6e5ad80
FB		 2075}
2076
2077/***************************************
2078 *
2079 * memory access between 0xa0000-0xbffff
2080 *
2081 ***************************************/
2082
a815b166 2083static uint64_t cirrus_vga_mem_read(void *opaque,
a8170e5e 2084 hwaddr addr,
a815b166 2085 uint32_t size)
e6e5ad80
FB		 2086{
2087 CirrusVGAState *s = opaque;
2088 unsigned bank_index;
2089 unsigned bank_offset;
2090 uint32_t val;
2091
4e12cd94 2092 if ((s->vga.sr[0x07] & 0x01) == 0) {
b2a5e761 2093 return vga_mem_readb(&s->vga, addr);
e6e5ad80
FB		 2094 }
2095
2096 if (addr < 0x10000) {
2097 /* XXX handle bitblt */
2098 /* video memory */
2099 bank_index = addr >> 15;
2100 bank_offset = addr & 0x7fff;
2101 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2102 bank_offset += s->cirrus_bank_base[bank_index];
4e12cd94 2103 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2104 bank_offset <<= 4;
4e12cd94 2105 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2106 bank_offset <<= 3;
2107 }
2108 bank_offset &= s->cirrus_addr_mask;
4e12cd94 2109 val = *(s->vga.vram_ptr + bank_offset);
e6e5ad80
FB		 2110 } else
2111 val = 0xff;
2112 } else if (addr >= 0x18000 && addr < 0x18100) {
2113 /* memory-mapped I/O */
2114 val = 0xff;
4e12cd94 2115 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
e6e5ad80
FB		 2116 val = cirrus_mmio_blt_read(s, addr & 0xff);
2117 }
2118 } else {
2119 val = 0xff;
2120#ifdef DEBUG_CIRRUS
0bf9e31a 2121 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
e6e5ad80
FB		 2122#endif
2123 }
2124 return val;
2125}
2126
a815b166 2127static void cirrus_vga_mem_write(void *opaque,
a8170e5e 2128 hwaddr addr,
a815b166
AK		 2129 uint64_t mem_value,
2130 uint32_t size)
e6e5ad80
FB		 2131{
2132 CirrusVGAState *s = opaque;
2133 unsigned bank_index;
2134 unsigned bank_offset;
2135 unsigned mode;
2136
4e12cd94 2137 if ((s->vga.sr[0x07] & 0x01) == 0) {
b2a5e761 2138 vga_mem_writeb(&s->vga, addr, mem_value);
e6e5ad80
FB		 2139 return;
2140 }
2141
2142 if (addr < 0x10000) {
2143 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2144 /* bitblt */
2145 *s->cirrus_srcptr++ = (uint8_t) mem_value;
a5082316 2146 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 2147 cirrus_bitblt_cputovideo_next(s);
2148 }
2149 } else {
2150 /* video memory */
2151 bank_index = addr >> 15;
2152 bank_offset = addr & 0x7fff;
2153 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2154 bank_offset += s->cirrus_bank_base[bank_index];
4e12cd94 2155 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2156 bank_offset <<= 4;
4e12cd94 2157 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2158 bank_offset <<= 3;
2159 }
2160 bank_offset &= s->cirrus_addr_mask;
4e12cd94
AK		 2161 mode = s->vga.gr[0x05] & 0x7;
2162 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2163 *(s->vga.vram_ptr + bank_offset) = mem_value;
fd4aa979
BS		 2164 memory_region_set_dirty(&s->vga.vram, bank_offset,
2165 sizeof(mem_value));
e6e5ad80 2166 } else {
4e12cd94 2167 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
e6e5ad80
FB		 2168 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2169 bank_offset,
2170 mem_value);
2171 } else {
2172 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2173 bank_offset,
2174 mem_value);
2175 }
2176 }
2177 }
2178 }
2179 } else if (addr >= 0x18000 && addr < 0x18100) {
2180 /* memory-mapped I/O */
4e12cd94 2181 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
e6e5ad80
FB		 2182 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2183 }
2184 } else {
2185#ifdef DEBUG_CIRRUS
e8ee4b68 2186 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr,
08406b03 2187 mem_value);
e6e5ad80
FB		 2188#endif
2189 }
2190}
2191
b1950430
AK		 2192static const MemoryRegionOps cirrus_vga_mem_ops = {
2193 .read = cirrus_vga_mem_read,
2194 .write = cirrus_vga_mem_write,
2195 .endianness = DEVICE_LITTLE_ENDIAN,
a815b166
AK		 2196 .impl = {
2197 .min_access_size = 1,
2198 .max_access_size = 1,
2199 },
e6e5ad80
FB		 2200};
2201
a5082316
FB		 2202/***************************************
2203 *
2204 * hardware cursor
2205 *
2206 ***************************************/
2207
2208static inline void invalidate_cursor1(CirrusVGAState *s)
2209{
2210 if (s->last_hw_cursor_size) {
4e12cd94 2211 vga_invalidate_scanlines(&s->vga,
a5082316
FB		 2212 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2213 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2214 }
2215}
2216
2217static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2218{
2219 const uint8_t *src;
2220 uint32_t content;
2221 int y, y_min, y_max;
2222
f0353b0d 2223 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
4e12cd94
AK		 2224 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2225 src += (s->vga.sr[0x13] & 0x3c) * 256;
a5082316
FB		 2226 y_min = 64;
2227 y_max = -1;
2228 for(y = 0; y < 64; y++) {
2229 content = ((uint32_t *)src)[0] |
2230 ((uint32_t *)src)[1] |
2231 ((uint32_t *)src)[2] |
2232 ((uint32_t *)src)[3];
2233 if (content) {
2234 if (y < y_min)
2235 y_min = y;
2236 if (y > y_max)
2237 y_max = y;
2238 }
2239 src += 16;
2240 }
2241 } else {
4e12cd94 2242 src += (s->vga.sr[0x13] & 0x3f) * 256;
a5082316
FB		 2243 y_min = 32;
2244 y_max = -1;
2245 for(y = 0; y < 32; y++) {
2246 content = ((uint32_t *)src)[0] |
2247 ((uint32_t *)(src + 128))[0];
2248 if (content) {
2249 if (y < y_min)
2250 y_min = y;
2251 if (y > y_max)
2252 y_max = y;
2253 }
2254 src += 4;
2255 }
2256 }
2257 if (y_min > y_max) {
2258 s->last_hw_cursor_y_start = 0;
2259 s->last_hw_cursor_y_end = 0;
2260 } else {
2261 s->last_hw_cursor_y_start = y_min;
2262 s->last_hw_cursor_y_end = y_max + 1;
2263 }
2264}
2265
2266/* NOTE: we do not currently handle the cursor bitmap change, so we
2267 update the cursor only if it moves. */
a4a2f59c 2268static void cirrus_cursor_invalidate(VGACommonState *s1)
a5082316 2269{
4e12cd94 2270 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
a5082316
FB		 2271 int size;
2272
4e12cd94 2273 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
a5082316
FB		 2274 size = 0;
2275 } else {
4e12cd94 2276 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
a5082316
FB		 2277 size = 64;
2278 else
2279 size = 32;
2280 }
2281 /* invalidate last cursor and new cursor if any change */
2282 if (s->last_hw_cursor_size != size ||
22382bb9
GH		 2283 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2284 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
a5082316
FB		 2285
2286 invalidate_cursor1(s);
3b46e624 2287
a5082316 2288 s->last_hw_cursor_size = size;
22382bb9
GH		 2289 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2290 s->last_hw_cursor_y = s->vga.hw_cursor_y;
a5082316
FB		 2291 /* compute the real cursor min and max y */
2292 cirrus_cursor_compute_yrange(s);
2293 invalidate_cursor1(s);
2294 }
2295}
2296
70a041fe
BH		 2297static void vga_draw_cursor_line(uint8_t *d1,
2298 const uint8_t *src1,
2299 int poffset, int w,
2300 unsigned int color0,
2301 unsigned int color1,
2302 unsigned int color_xor)
2303{
2304 const uint8_t *plane0, *plane1;
2305 int x, b0, b1;
2306 uint8_t *d;
2307
2308 d = d1;
2309 plane0 = src1;
2310 plane1 = src1 + poffset;
2311 for (x = 0; x < w; x++) {
2312 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2313 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2314 switch (b0 | (b1 << 1)) {
2315 case 0:
2316 break;
2317 case 1:
2318 ((uint32_t *)d)[0] ^= color_xor;
2319 break;
2320 case 2:
2321 ((uint32_t *)d)[0] = color0;
2322 break;
2323 case 3:
2324 ((uint32_t *)d)[0] = color1;
2325 break;
2326 }
2327 d += 4;
2328 }
2329}
94d7b483 2330
a4a2f59c 2331static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
a5082316 2332{
4e12cd94 2333 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
70a041fe 2334 int w, h, x1, x2, poffset;
a5082316
FB		 2335 unsigned int color0, color1;
2336 const uint8_t *palette, *src;
2337 uint32_t content;
3b46e624 2338
4e12cd94 2339 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
a5082316
FB		 2340 return;
2341 /* fast test to see if the cursor intersects with the scan line */
4e12cd94 2342 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
a5082316
FB		 2343 h = 64;
2344 } else {
2345 h = 32;
2346 }
22382bb9
GH		 2347 if (scr_y < s->vga.hw_cursor_y ||
2348 scr_y >= (s->vga.hw_cursor_y + h)) {
a5082316 2349 return;
22382bb9 2350 }
3b46e624 2351
f0353b0d 2352 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
4e12cd94
AK		 2353 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2354 src += (s->vga.sr[0x13] & 0x3c) * 256;
22382bb9 2355 src += (scr_y - s->vga.hw_cursor_y) * 16;
a5082316
FB		 2356 poffset = 8;
2357 content = ((uint32_t *)src)[0] |
2358 ((uint32_t *)src)[1] |
2359 ((uint32_t *)src)[2] |
2360 ((uint32_t *)src)[3];
2361 } else {
4e12cd94 2362 src += (s->vga.sr[0x13] & 0x3f) * 256;
22382bb9 2363 src += (scr_y - s->vga.hw_cursor_y) * 4;
d3c2343a
BH		 2364
2365
a5082316
FB		 2366 poffset = 128;
2367 content = ((uint32_t *)src)[0] |
2368 ((uint32_t *)(src + 128))[0];
2369 }
2370 /* if nothing to draw, no need to continue */
2371 if (!content)
2372 return;
2373 w = h;
2374
22382bb9 2375 x1 = s->vga.hw_cursor_x;
4e12cd94 2376 if (x1 >= s->vga.last_scr_width)
a5082316 2377 return;
22382bb9 2378 x2 = s->vga.hw_cursor_x + w;
4e12cd94
AK		 2379 if (x2 > s->vga.last_scr_width)
2380 x2 = s->vga.last_scr_width;
a5082316
FB		 2381 w = x2 - x1;
2382 palette = s->cirrus_hidden_palette;
d3c2343a
BH		 2383 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2384 c6_to_8(palette[0x0 * 3 + 1]),
2385 c6_to_8(palette[0x0 * 3 + 2]));
2386 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2387 c6_to_8(palette[0xf * 3 + 1]),
2388 c6_to_8(palette[0xf * 3 + 2]));
70a041fe
BH		 2389 d1 += x1 * 4;
2390 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
a5082316
FB		 2391}
2392
e6e5ad80
FB		 2393/***************************************
2394 *
2395 * LFB memory access
2396 *
2397 ***************************************/
2398
a8170e5e 2399static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
899adf81 2400 unsigned size)
e6e5ad80 2401{
e05587e8 2402 CirrusVGAState *s = opaque;
e6e5ad80
FB		 2403 uint32_t ret;
2404
e6e5ad80
FB		 2405 addr &= s->cirrus_addr_mask;
2406
4e12cd94 2407 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
78e127ef 2408 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2409 /* memory-mapped I/O */
2410 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2411 } else if (0) {
2412 /* XXX handle bitblt */
2413 ret = 0xff;
2414 } else {
2415 /* video memory */
4e12cd94 2416 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2417 addr <<= 4;
4e12cd94 2418 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2419 addr <<= 3;
2420 }
2421 addr &= s->cirrus_addr_mask;
4e12cd94 2422 ret = *(s->vga.vram_ptr + addr);
e6e5ad80
FB		 2423 }
2424
2425 return ret;
2426}
2427
a8170e5e 2428static void cirrus_linear_write(void *opaque, hwaddr addr,
899adf81 2429 uint64_t val, unsigned size)
e6e5ad80 2430{
e05587e8 2431 CirrusVGAState *s = opaque;
e6e5ad80
FB		 2432 unsigned mode;
2433
2434 addr &= s->cirrus_addr_mask;
3b46e624 2435
4e12cd94 2436 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
78e127ef 2437 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2438 /* memory-mapped I/O */
2439 cirrus_mmio_blt_write(s, addr & 0xff, val);
2440 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2441 /* bitblt */
2442 *s->cirrus_srcptr++ = (uint8_t) val;
a5082316 2443 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 2444 cirrus_bitblt_cputovideo_next(s);
2445 }
2446 } else {
2447 /* video memory */
4e12cd94 2448 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2449 addr <<= 4;
4e12cd94 2450 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2451 addr <<= 3;
2452 }
2453 addr &= s->cirrus_addr_mask;
2454
4e12cd94
AK		 2455 mode = s->vga.gr[0x05] & 0x7;
2456 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2457 *(s->vga.vram_ptr + addr) = (uint8_t) val;
fd4aa979 2458 memory_region_set_dirty(&s->vga.vram, addr, 1);
e6e5ad80 2459 } else {
4e12cd94 2460 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
e6e5ad80
FB		 2461 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2462 } else {
2463 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2464 }
2465 }
2466 }
2467}
2468
a5082316
FB		 2469/***************************************
2470 *
2471 * system to screen memory access
2472 *
2473 ***************************************/
2474
2475
4e56f089 2476static uint64_t cirrus_linear_bitblt_read(void *opaque,
a8170e5e 2477 hwaddr addr,
4e56f089 2478 unsigned size)
a5082316 2479{
4e56f089 2480 CirrusVGAState *s = opaque;
a5082316
FB		 2481 uint32_t ret;
2482
2483 /* XXX handle bitblt */
4e56f089 2484 (void)s;
a5082316
FB		 2485 ret = 0xff;
2486 return ret;
2487}
2488
4e56f089 2489static void cirrus_linear_bitblt_write(void *opaque,
a8170e5e 2490 hwaddr addr,
4e56f089
AK		 2491 uint64_t val,
2492 unsigned size)
a5082316 2493{
e05587e8 2494 CirrusVGAState *s = opaque;
a5082316
FB		 2495
2496 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2497 /* bitblt */
2498 *s->cirrus_srcptr++ = (uint8_t) val;
2499 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2500 cirrus_bitblt_cputovideo_next(s);
2501 }
2502 }
2503}
2504
b1950430
AK		 2505static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2506 .read = cirrus_linear_bitblt_read,
2507 .write = cirrus_linear_bitblt_write,
2508 .endianness = DEVICE_LITTLE_ENDIAN,
4e56f089
AK		 2509 .impl = {
2510 .min_access_size = 1,
2511 .max_access_size = 1,
2512 },
a5082316
FB		 2513};
2514
b1950430
AK		 2515static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2516{
7969d9ed
AK		 2517 MemoryRegion *mr = &s->cirrus_bank[bank];
2518 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
4e12cd94
AK		 2519 && !((s->vga.sr[0x07] & 0x01) == 0)
2520 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
7969d9ed
AK		 2521 && !(s->vga.gr[0x0B] & 0x02);
2522
2523 memory_region_set_enabled(mr, enabled);
2524 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
b1950430 2525}
2bec46dc 2526
b1950430
AK		 2527static void map_linear_vram(CirrusVGAState *s)
2528{
4c08fd1e 2529 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
b1950430
AK		 2530 s->linear_vram = true;
2531 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2532 }
2533 map_linear_vram_bank(s, 0);
2534 map_linear_vram_bank(s, 1);
2bec46dc
AL		 2535}
2536
2537static void unmap_linear_vram(CirrusVGAState *s)
2538{
4c08fd1e 2539 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
b1950430
AK		 2540 s->linear_vram = false;
2541 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
4516e45f 2542 }
7969d9ed
AK		 2543 memory_region_set_enabled(&s->cirrus_bank[0], false);
2544 memory_region_set_enabled(&s->cirrus_bank[1], false);
2bec46dc
AL		 2545}
2546
8926b517
FB		 2547/* Compute the memory access functions */
2548static void cirrus_update_memory_access(CirrusVGAState *s)
2549{
2550 unsigned mode;
2551
64c048f4 2552 memory_region_transaction_begin();
4e12cd94 2553 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
8926b517
FB		 2554 goto generic_io;
2555 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2556 goto generic_io;
2557 } else {
4e12cd94 2558 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
8926b517 2559 goto generic_io;
4e12cd94 2560 } else if (s->vga.gr[0x0B] & 0x02) {
8926b517
FB		 2561 goto generic_io;
2562 }
3b46e624 2563
4e12cd94
AK		 2564 mode = s->vga.gr[0x05] & 0x7;
2565 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2bec46dc 2566 map_linear_vram(s);
8926b517
FB		 2567 } else {
2568 generic_io:
2bec46dc 2569 unmap_linear_vram(s);
8926b517
FB		 2570 }
2571 }
64c048f4 2572 memory_region_transaction_commit();
8926b517
FB		 2573}
2574
2575
e6e5ad80
FB		 2576/* I/O ports */
2577
c75e6d8e
JG		 2578static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2579 unsigned size)
e6e5ad80 2580{
b6343073
JQ		 2581 CirrusVGAState *c = opaque;
2582 VGACommonState *s = &c->vga;
e6e5ad80
FB		 2583 int val, index;
2584
c75e6d8e 2585 addr += 0x3b0;
bd8f2f5d 2586
b6343073 2587 if (vga_ioport_invalid(s, addr)) {
e6e5ad80
FB		 2588 val = 0xff;
2589 } else {
2590 switch (addr) {
2591 case 0x3c0:
b6343073
JQ		 2592 if (s->ar_flip_flop == 0) {
2593 val = s->ar_index;
e6e5ad80
FB		 2594 } else {
2595 val = 0;
2596 }
2597 break;
2598 case 0x3c1:
b6343073 2599 index = s->ar_index & 0x1f;
e6e5ad80 2600 if (index < 21)
b6343073 2601 val = s->ar[index];
e6e5ad80
FB		 2602 else
2603 val = 0;
2604 break;
2605 case 0x3c2:
b6343073 2606 val = s->st00;
e6e5ad80
FB		 2607 break;
2608 case 0x3c4:
b6343073 2609 val = s->sr_index;
e6e5ad80
FB		 2610 break;
2611 case 0x3c5:
8a82c322
JQ		 2612 val = cirrus_vga_read_sr(c);
2613 break;
e6e5ad80 2614#ifdef DEBUG_VGA_REG
b6343073 2615 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
e6e5ad80
FB		 2616#endif
2617 break;
2618 case 0x3c6:
957c9db5 2619 val = cirrus_read_hidden_dac(c);
e6e5ad80
FB		 2620 break;
2621 case 0x3c7:
b6343073 2622 val = s->dac_state;
e6e5ad80 2623 break;
ae184e4a 2624 case 0x3c8:
b6343073
JQ		 2625 val = s->dac_write_index;
2626 c->cirrus_hidden_dac_lockindex = 0;
ae184e4a
FB		 2627 break;
2628 case 0x3c9:
5deaeee3
JQ		 2629 val = cirrus_vga_read_palette(c);
2630 break;
e6e5ad80 2631 case 0x3ca:
b6343073 2632 val = s->fcr;
e6e5ad80
FB		 2633 break;
2634 case 0x3cc:
b6343073 2635 val = s->msr;
e6e5ad80
FB		 2636 break;
2637 case 0x3ce:
b6343073 2638 val = s->gr_index;
e6e5ad80
FB		 2639 break;
2640 case 0x3cf:
f705db9d 2641 val = cirrus_vga_read_gr(c, s->gr_index);
e6e5ad80 2642#ifdef DEBUG_VGA_REG
b6343073 2643 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
e6e5ad80
FB		 2644#endif
2645 break;
2646 case 0x3b4:
2647 case 0x3d4:
b6343073 2648 val = s->cr_index;
e6e5ad80
FB		 2649 break;
2650 case 0x3b5:
2651 case 0x3d5:
b863d514 2652 val = cirrus_vga_read_cr(c, s->cr_index);
e6e5ad80 2653#ifdef DEBUG_VGA_REG
b6343073 2654 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
e6e5ad80
FB		 2655#endif
2656 break;
2657 case 0x3ba:
2658 case 0x3da:
2659 /* just toggle to fool polling */
b6343073
JQ		 2660 val = s->st01 = s->retrace(s);
2661 s->ar_flip_flop = 0;
e6e5ad80
FB		 2662 break;
2663 default:
2664 val = 0x00;
2665 break;
2666 }
2667 }
ec87f206 2668 trace_vga_cirrus_read_io(addr, val);
e6e5ad80
FB		 2669 return val;
2670}
2671
c75e6d8e
JG		 2672static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2673 unsigned size)
e6e5ad80 2674{
b6343073
JQ		 2675 CirrusVGAState *c = opaque;
2676 VGACommonState *s = &c->vga;
e6e5ad80
FB		 2677 int index;
2678
c75e6d8e 2679 addr += 0x3b0;
bd8f2f5d 2680
e6e5ad80 2681 /* check port range access depending on color/monochrome mode */
b6343073 2682 if (vga_ioport_invalid(s, addr)) {
e6e5ad80 2683 return;
25a18cbd 2684 }
ec87f206 2685 trace_vga_cirrus_write_io(addr, val);
e6e5ad80
FB		 2686
2687 switch (addr) {
2688 case 0x3c0:
b6343073 2689 if (s->ar_flip_flop == 0) {
e6e5ad80 2690 val &= 0x3f;
b6343073 2691 s->ar_index = val;
e6e5ad80 2692 } else {
b6343073 2693 index = s->ar_index & 0x1f;
e6e5ad80
FB		 2694 switch (index) {
2695 case 0x00 ... 0x0f:
b6343073 2696 s->ar[index] = val & 0x3f;
e6e5ad80
FB		 2697 break;
2698 case 0x10:
b6343073 2699 s->ar[index] = val & ~0x10;
e6e5ad80
FB		 2700 break;
2701 case 0x11:
b6343073 2702 s->ar[index] = val;
e6e5ad80
FB		 2703 break;
2704 case 0x12:
b6343073 2705 s->ar[index] = val & ~0xc0;
e6e5ad80
FB		 2706 break;
2707 case 0x13:
b6343073 2708 s->ar[index] = val & ~0xf0;
e6e5ad80
FB		 2709 break;
2710 case 0x14:
b6343073 2711 s->ar[index] = val & ~0xf0;
e6e5ad80
FB		 2712 break;
2713 default:
2714 break;
2715 }
2716 }
b6343073 2717 s->ar_flip_flop ^= 1;
e6e5ad80
FB		 2718 break;
2719 case 0x3c2:
b6343073
JQ		 2720 s->msr = val & ~0x10;
2721 s->update_retrace_info(s);
e6e5ad80
FB		 2722 break;
2723 case 0x3c4:
b6343073 2724 s->sr_index = val;
e6e5ad80
FB		 2725 break;
2726 case 0x3c5:
e6e5ad80 2727#ifdef DEBUG_VGA_REG
e8ee4b68 2728 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val);
e6e5ad80 2729#endif
31c63201
JQ		 2730 cirrus_vga_write_sr(c, val);
2731 break;
e6e5ad80 2732 case 0x3c6:
b6343073 2733 cirrus_write_hidden_dac(c, val);
e6e5ad80
FB		 2734 break;
2735 case 0x3c7:
b6343073
JQ		 2736 s->dac_read_index = val;
2737 s->dac_sub_index = 0;
2738 s->dac_state = 3;
e6e5ad80
FB		 2739 break;
2740 case 0x3c8:
b6343073
JQ		 2741 s->dac_write_index = val;
2742 s->dac_sub_index = 0;
2743 s->dac_state = 0;
e6e5ad80
FB		 2744 break;
2745 case 0x3c9:
86948bb1
JQ		 2746 cirrus_vga_write_palette(c, val);
2747 break;
e6e5ad80 2748 case 0x3ce:
b6343073 2749 s->gr_index = val;
e6e5ad80
FB		 2750 break;
2751 case 0x3cf:
e6e5ad80 2752#ifdef DEBUG_VGA_REG
e8ee4b68 2753 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val);
e6e5ad80 2754#endif
22286bc6 2755 cirrus_vga_write_gr(c, s->gr_index, val);
e6e5ad80
FB		 2756 break;
2757 case 0x3b4:
2758 case 0x3d4:
b6343073 2759 s->cr_index = val;
e6e5ad80
FB		 2760 break;
2761 case 0x3b5:
2762 case 0x3d5:
e6e5ad80 2763#ifdef DEBUG_VGA_REG
e8ee4b68 2764 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val);
e6e5ad80 2765#endif
4ec1ce04 2766 cirrus_vga_write_cr(c, val);
e6e5ad80
FB		 2767 break;
2768 case 0x3ba:
2769 case 0x3da:
b6343073 2770 s->fcr = val & 0x10;
e6e5ad80
FB		 2771 break;
2772 }
2773}
2774
e36f36e1
FB		 2775/***************************************
2776 *
2777 * memory-mapped I/O access
2778 *
2779 ***************************************/
2780
a8170e5e 2781static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
1e04d4d6 2782 unsigned size)
e36f36e1 2783{
e05587e8 2784 CirrusVGAState *s = opaque;
e36f36e1 2785
e36f36e1
FB		 2786 if (addr >= 0x100) {
2787 return cirrus_mmio_blt_read(s, addr - 0x100);
2788 } else {
c75e6d8e 2789 return cirrus_vga_ioport_read(s, addr + 0x10, size);
e36f36e1
FB		 2790 }
2791}
2792
a8170e5e 2793static void cirrus_mmio_write(void *opaque, hwaddr addr,
1e04d4d6 2794 uint64_t val, unsigned size)
e36f36e1 2795{
e05587e8 2796 CirrusVGAState *s = opaque;
e36f36e1 2797
e36f36e1
FB		 2798 if (addr >= 0x100) {
2799 cirrus_mmio_blt_write(s, addr - 0x100, val);
2800 } else {
c75e6d8e 2801 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
e36f36e1
FB		 2802 }
2803}
2804
b1950430
AK		 2805static const MemoryRegionOps cirrus_mmio_io_ops = {
2806 .read = cirrus_mmio_read,
2807 .write = cirrus_mmio_write,
2808 .endianness = DEVICE_LITTLE_ENDIAN,
1e04d4d6
AK		 2809 .impl = {
2810 .min_access_size = 1,
2811 .max_access_size = 1,
2812 },
e36f36e1
FB		 2813};
2814
2c6ab832
FB		 2815/* load/save state */
2816
e59fb374 2817static int cirrus_post_load(void *opaque, int version_id)
2c6ab832
FB		 2818{
2819 CirrusVGAState *s = opaque;
2820
4e12cd94
AK		 2821 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2822 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2c6ab832 2823
2bec46dc 2824 cirrus_update_memory_access(s);
2c6ab832 2825 /* force refresh */
4e12cd94 2826 s->vga.graphic_mode = -1;
2c6ab832
FB		 2827 cirrus_update_bank_ptr(s, 0);
2828 cirrus_update_bank_ptr(s, 1);
2829 return 0;
2830}
2831
7e72abc3
JQ		 2832static const VMStateDescription vmstate_cirrus_vga = {
2833 .name = "cirrus_vga",
2834 .version_id = 2,
2835 .minimum_version_id = 1,
7e72abc3 2836 .post_load = cirrus_post_load,
d49805ae 2837 .fields = (VMStateField[]) {
7e72abc3
JQ		 2838 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2839 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2840 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2841 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2842 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2843 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2844 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2845 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2846 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2847 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2848 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2849 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2850 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2851 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2852 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2853 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2854 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2855 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2856 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2857 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2858 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2859 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2860 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2861 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2862 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
22382bb9
GH		 2863 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2864 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
7e72abc3
JQ		 2865 /* XXX: we do not save the bitblt state - we assume we do not save
2866 the state when the blitter is active */
2867 VMSTATE_END_OF_LIST()
4f335feb 2868 }
7e72abc3 2869};
4f335feb 2870
7e72abc3
JQ		 2871static const VMStateDescription vmstate_pci_cirrus_vga = {
2872 .name = "cirrus_vga",
2873 .version_id = 2,
2874 .minimum_version_id = 2,
d49805ae 2875 .fields = (VMStateField[]) {
7e72abc3
JQ		 2876 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2877 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2878 vmstate_cirrus_vga, CirrusVGAState),
2879 VMSTATE_END_OF_LIST()
2880 }
2881};
4f335feb 2882
e6e5ad80
FB		 2883/***************************************
2884 *
2885 * initialize
2886 *
2887 ***************************************/
2888
4abc796d 2889static void cirrus_reset(void *opaque)
e6e5ad80 2890{
4abc796d 2891 CirrusVGAState *s = opaque;
e6e5ad80 2892
03a3e7ba 2893 vga_common_reset(&s->vga);
ee50c6bc 2894 unmap_linear_vram(s);
4e12cd94 2895 s->vga.sr[0x06] = 0x0f;
4abc796d 2896 if (s->device_id == CIRRUS_ID_CLGD5446) {
78e127ef 2897 /* 4MB 64 bit memory config, always PCI */
4e12cd94
AK		 2898 s->vga.sr[0x1F] = 0x2d; // MemClock
2899 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2900 s->vga.sr[0x0f] = 0x98;
2901 s->vga.sr[0x17] = 0x20;
2902 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
78e127ef 2903 } else {
4e12cd94
AK		 2904 s->vga.sr[0x1F] = 0x22; // MemClock
2905 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2906 s->vga.sr[0x17] = s->bustype;
2907 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
78e127ef 2908 }
4e12cd94 2909 s->vga.cr[0x27] = s->device_id;
e6e5ad80
FB		 2910
2911 s->cirrus_hidden_dac_lockindex = 5;
2912 s->cirrus_hidden_dac_data = 0;
4abc796d
BS		 2913}
2914
b1950430
AK		 2915static const MemoryRegionOps cirrus_linear_io_ops = {
2916 .read = cirrus_linear_read,
2917 .write = cirrus_linear_write,
2918 .endianness = DEVICE_LITTLE_ENDIAN,
899adf81
AK		 2919 .impl = {
2920 .min_access_size = 1,
2921 .max_access_size = 1,
2922 },
b1950430
AK		 2923};
2924
c75e6d8e
JG		 2925static const MemoryRegionOps cirrus_vga_io_ops = {
2926 .read = cirrus_vga_ioport_read,
2927 .write = cirrus_vga_ioport_write,
2928 .endianness = DEVICE_LITTLE_ENDIAN,
2929 .impl = {
2930 .min_access_size = 1,
2931 .max_access_size = 1,
2932 },
2933};
2934
9eb58a47
PB		 2935static void cirrus_init_common(CirrusVGAState *s, Object *owner,
2936 int device_id, int is_pci,
c75e6d8e
JG		 2937 MemoryRegion *system_memory,
2938 MemoryRegion *system_io)
4abc796d
BS		 2939{
2940 int i;
2941 static int inited;
2942
2943 if (!inited) {
2944 inited = 1;
2945 for(i = 0;i < 256; i++)
2946 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2947 rop_to_index[CIRRUS_ROP_0] = 0;
2948 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2949 rop_to_index[CIRRUS_ROP_NOP] = 2;
2950 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2951 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2952 rop_to_index[CIRRUS_ROP_SRC] = 5;
2953 rop_to_index[CIRRUS_ROP_1] = 6;
2954 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2955 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2956 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2957 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2958 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2959 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2960 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2961 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2962 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2963 s->device_id = device_id;
2964 if (is_pci)
2965 s->bustype = CIRRUS_BUSTYPE_PCI;
2966 else
2967 s->bustype = CIRRUS_BUSTYPE_ISA;
2968 }
2969
c75e6d8e 2970 /* Register ioport 0x3b0 - 0x3df */
9eb58a47 2971 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
c75e6d8e 2972 "cirrus-io", 0x30);
eb25a1d9 2973 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
c75e6d8e 2974 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
4abc796d 2975
9eb58a47 2976 memory_region_init(&s->low_mem_container, owner,
b1950430
AK		 2977 "cirrus-lowmem-container",
2978 0x20000);
2979
9eb58a47 2980 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
b1950430
AK		 2981 "cirrus-low-memory", 0x20000);
2982 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
7969d9ed
AK		 2983 for (i = 0; i < 2; ++i) {
2984 static const char *names[] = { "vga.bank0", "vga.bank1" };
2985 MemoryRegion *bank = &s->cirrus_bank[i];
9eb58a47
PB		 2986 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2987 0, 0x8000);
7969d9ed
AK		 2988 memory_region_set_enabled(bank, false);
2989 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2990 bank, 1);
2991 }
be20f9e9 2992 memory_region_add_subregion_overlap(system_memory,
b19c1c08 2993 0x000a0000,
b1950430
AK		 2994 &s->low_mem_container,
2995 1);
2996 memory_region_set_coalescing(&s->low_mem);
2c6ab832 2997
fefe54e3 2998 /* I/O handler for LFB */
9eb58a47 2999 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
f0353b0d 3000 "cirrus-linear-io", s->vga.vram_size_mb * MiB);
bd8f2f5d 3001 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
fefe54e3
AL		 3002
3003 /* I/O handler for LFB */
9eb58a47 3004 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
b1950430
AK		 3005 &cirrus_linear_bitblt_io_ops,
3006 s,
3007 "cirrus-bitblt-mmio",
3008 0x400000);
bd8f2f5d 3009 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
fefe54e3
AL		 3010
3011 /* I/O handler for memory-mapped I/O */
9eb58a47 3012 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
b1950430 3013 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
bd8f2f5d 3014 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
fefe54e3
AL		 3015
3016 s->real_vram_size =
f0353b0d 3017 (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB;
fefe54e3 3018
4e12cd94 3019 /* XXX: s->vga.vram_size must be a power of two */
fefe54e3
AL		 3020 s->cirrus_addr_mask = s->real_vram_size - 1;
3021 s->linear_mmio_mask = s->real_vram_size - 256;
3022
4e12cd94
AK		 3023 s->vga.get_bpp = cirrus_get_bpp;
3024 s->vga.get_offsets = cirrus_get_offsets;
3025 s->vga.get_resolution = cirrus_get_resolution;
3026 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
3027 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
fefe54e3 3028
a08d4367 3029 qemu_register_reset(cirrus_reset, s);
e6e5ad80
FB		 3030}
3031
3032/***************************************
3033 *
3034 * ISA bus support
3035 *
3036 ***************************************/
3037
db895a1e 3038static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
e6e5ad80 3039{
db895a1e 3040 ISADevice *isadev = ISA_DEVICE(dev);
6d4c2f17 3041 ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
3d402831
BS		 3042 VGACommonState *s = &d->cirrus_vga.vga;
3043
f61d82c2
GA		 3044 /* follow real hardware, cirrus card emulated has 4 MB video memory.
3045 Also accept 8 MB/16 MB for backward compatibility. */
3046 if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
3047 s->vram_size_mb != 16) {
3048 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
3049 s->vram_size_mb);
3050 return;
3051 }
1fcfdc43
GH		 3052 s->global_vmstate = true;
3053 vga_common_init(s, OBJECT(dev));
9eb58a47 3054 cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
db895a1e
AF		 3055 isa_address_space(isadev),
3056 isa_address_space_io(isadev));
5643706a 3057 s->con = graphic_console_init(dev, 0, s->hw_ops, s);
5245d57a 3058 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
e6e5ad80 3059 /* XXX ISA-LFB support */
ad6d45fa 3060 /* FIXME not qdev yet */
3d402831
BS		 3061}
3062
6d4c2f17 3063static Property isa_cirrus_vga_properties[] = {
19403a68 3064 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
73c14813 3065 cirrus_vga.vga.vram_size_mb, 4),
827bd517 3066 DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState,
1fcfdc43 3067 cirrus_vga.enable_blitter, true),
19403a68
MT		 3068 DEFINE_PROP_END_OF_LIST(),
3069};
3070
8f04ee08
AL		 3071static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
3072{
39bffca2 3073 DeviceClass *dc = DEVICE_CLASS(klass);
8f04ee08 3074
39bffca2 3075 dc->vmsd = &vmstate_cirrus_vga;
db895a1e 3076 dc->realize = isa_cirrus_vga_realizefn;
6d4c2f17 3077 dc->props = isa_cirrus_vga_properties;
125ee0ed 3078 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
8f04ee08
AL		 3079}
3080
8c43a6f0 3081static const TypeInfo isa_cirrus_vga_info = {
6d4c2f17 3082 .name = TYPE_ISA_CIRRUS_VGA,
39bffca2
AL		 3083 .parent = TYPE_ISA_DEVICE,
3084 .instance_size = sizeof(ISACirrusVGAState),
8f04ee08 3085 .class_init = isa_cirrus_vga_class_init,
3d402831
BS		 3086};
3087
e6e5ad80
FB		 3088/***************************************
3089 *
3090 * PCI bus support
3091 *
3092 ***************************************/
3093
f409edf7 3094static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
a414c306 3095{
d338bae3 3096 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev);
a414c306 3097 CirrusVGAState *s = &d->cirrus_vga;
40021f08
AL		 3098 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
3099 int16_t device_id = pc->device_id;
a414c306 3100
f61d82c2
GA		 3101 /* follow real hardware, cirrus card emulated has 4 MB video memory.
3102 Also accept 8 MB/16 MB for backward compatibility. */
3103 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
3104 s->vga.vram_size_mb != 16) {
f409edf7
MA		 3105 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
3106 s->vga.vram_size_mb);
3107 return;
f61d82c2 3108 }
a414c306 3109 /* setup VGA */
1fcfdc43 3110 vga_common_init(&s->vga, OBJECT(dev));
9eb58a47 3111 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
c75e6d8e 3112 pci_address_space_io(dev));
5643706a 3113 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
a414c306
GH		 3114
3115 /* setup PCI */
a414c306 3116
3eadad55 3117 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
b1950430
AK		 3118
3119 /* XXX: add byte swapping apertures */
3120 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
3121 memory_region_add_subregion(&s->pci_bar, 0x1000000,
3122 &s->cirrus_linear_bitblt_io);
3123
a414c306
GH		 3124 /* setup memory space */
3125 /* memory #0 LFB */
3126 /* memory #1 memory-mapped I/O */
3127 /* XXX: s->vga.vram_size must be a power of two */
e824b2cc 3128 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
a414c306 3129 if (device_id == CIRRUS_ID_CLGD5446) {
e824b2cc 3130 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
a414c306 3131 }
a414c306
GH		 3132}
3133
19403a68
MT		 3134static Property pci_vga_cirrus_properties[] = {
3135 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
73c14813 3136 cirrus_vga.vga.vram_size_mb, 4),
827bd517
GH		 3137 DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState,
3138 cirrus_vga.enable_blitter, true),
1fcfdc43
GH		 3139 DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState,
3140 cirrus_vga.vga.global_vmstate, false),
19403a68
MT		 3141 DEFINE_PROP_END_OF_LIST(),
3142};
3143
40021f08
AL		 3144static void cirrus_vga_class_init(ObjectClass *klass, void *data)
3145{
39bffca2 3146 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08
AL		 3147 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
3148
f409edf7 3149 k->realize = pci_cirrus_vga_realize;
40021f08
AL		 3150 k->romfile = VGABIOS_CIRRUS_FILENAME;
3151 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3152 k->device_id = CIRRUS_ID_CLGD5446;
3153 k->class_id = PCI_CLASS_DISPLAY_VGA;
125ee0ed 3154 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
39bffca2
AL		 3155 dc->desc = "Cirrus CLGD 54xx VGA";
3156 dc->vmsd = &vmstate_pci_cirrus_vga;
19403a68 3157 dc->props = pci_vga_cirrus_properties;
2897ae02 3158 dc->hotpluggable = false;
40021f08
AL		 3159}
3160
8c43a6f0 3161static const TypeInfo cirrus_vga_info = {
d338bae3 3162 .name = TYPE_PCI_CIRRUS_VGA,
39bffca2
AL		 3163 .parent = TYPE_PCI_DEVICE,
3164 .instance_size = sizeof(PCICirrusVGAState),
3165 .class_init = cirrus_vga_class_init,
fd3b02c8
EH		 3166 .interfaces = (InterfaceInfo[]) {
3167 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
3168 { },
3169 },
a414c306 3170};
e6e5ad80 3171
83f7d43a 3172static void cirrus_vga_register_types(void)
a414c306 3173{
83f7d43a 3174 type_register_static(&isa_cirrus_vga_info);
39bffca2 3175 type_register_static(&cirrus_vga_info);
e6e5ad80 3176}
83f7d43a
AF		 3177
3178type_init(cirrus_vga_register_types)
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