projects / qemu.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210729' into staging
[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 25/*
29585468
PMD		 26 * Reference: Finn Thogersons' VGADOC4b:
27 *
28 * http://web.archive.org/web/20021019054927/http://home.worldonline.dk/finth/
29 *
30 * VGADOC4b.ZIP content available at:
31 *
32 * https://pdos.csail.mit.edu/6.828/2005/readings/hardware/vgadoc
aeb3c85f 33 */
0b8fa32f 34
47df5154 35#include "qemu/osdep.h"
0b8fa32f 36#include "qemu/module.h"
f0353b0d 37#include "qemu/units.h"
bb6e9e94 38#include "qemu/log.h"
71e8a915 39#include "sysemu/reset.h"
da34e65c 40#include "qapi/error.h"
ec87f206 41#include "trace.h"
83c9f4ca 42#include "hw/pci/pci.h"
a27bd6c7 43#include "hw/qdev-properties.h"
d6454270 44#include "migration/vmstate.h"
d3c2343a 45#include "ui/pixel_ops.h"
ce3cf70e 46#include "cirrus_vga_internal.h"
db1015e9 47#include "qom/object.h"
e6e5ad80 48
a5082316
FB		 49/*
50 * TODO:
ad81218e 51 * - destination write mask support not complete (bits 5..7)
a5082316
FB		 52 * - optimize linear mappings
53 * - optimize bitblt functions
54 */
55
e36f36e1
FB		 56//#define DEBUG_CIRRUS
57
e6e5ad80
FB		 58/***************************************
59 *
60 * definitions
61 *
62 ***************************************/
63
e6e5ad80
FB		 64// sequencer 0x07
65#define CIRRUS_SR7_BPP_VGA 0x00
66#define CIRRUS_SR7_BPP_SVGA 0x01
67#define CIRRUS_SR7_BPP_MASK 0x0e
68#define CIRRUS_SR7_BPP_8 0x00
69#define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
70#define CIRRUS_SR7_BPP_24 0x04
71#define CIRRUS_SR7_BPP_16 0x06
72#define CIRRUS_SR7_BPP_32 0x08
73#define CIRRUS_SR7_ISAADDR_MASK 0xe0
74
75// sequencer 0x0f
76#define CIRRUS_MEMSIZE_512k 0x08
77#define CIRRUS_MEMSIZE_1M 0x10
78#define CIRRUS_MEMSIZE_2M 0x18
79#define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
80
81// sequencer 0x12
82#define CIRRUS_CURSOR_SHOW 0x01
83#define CIRRUS_CURSOR_HIDDENPEL 0x02
84#define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
85
86// sequencer 0x17
87#define CIRRUS_BUSTYPE_VLBFAST 0x10
88#define CIRRUS_BUSTYPE_PCI 0x20
89#define CIRRUS_BUSTYPE_VLBSLOW 0x30
90#define CIRRUS_BUSTYPE_ISA 0x38
91#define CIRRUS_MMIO_ENABLE 0x04
92#define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
93#define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
94
95// control 0x0b
96#define CIRRUS_BANKING_DUAL 0x01
97#define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
98
99// control 0x30
100#define CIRRUS_BLTMODE_BACKWARDS 0x01
101#define CIRRUS_BLTMODE_MEMSYSDEST 0x02
102#define CIRRUS_BLTMODE_MEMSYSSRC 0x04
103#define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
104#define CIRRUS_BLTMODE_PATTERNCOPY 0x40
105#define CIRRUS_BLTMODE_COLOREXPAND 0x80
106#define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
107#define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
108#define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
109#define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
110#define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
111
112// control 0x31
113#define CIRRUS_BLT_BUSY 0x01
114#define CIRRUS_BLT_START 0x02
115#define CIRRUS_BLT_RESET 0x04
116#define CIRRUS_BLT_FIFOUSED 0x10
a5082316 117#define CIRRUS_BLT_AUTOSTART 0x80
e6e5ad80
FB		 118
119// control 0x32
120#define CIRRUS_ROP_0 0x00
121#define CIRRUS_ROP_SRC_AND_DST 0x05
122#define CIRRUS_ROP_NOP 0x06
123#define CIRRUS_ROP_SRC_AND_NOTDST 0x09
124#define CIRRUS_ROP_NOTDST 0x0b
125#define CIRRUS_ROP_SRC 0x0d
126#define CIRRUS_ROP_1 0x0e
127#define CIRRUS_ROP_NOTSRC_AND_DST 0x50
128#define CIRRUS_ROP_SRC_XOR_DST 0x59
129#define CIRRUS_ROP_SRC_OR_DST 0x6d
130#define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
131#define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
132#define CIRRUS_ROP_SRC_OR_NOTDST 0xad
133#define CIRRUS_ROP_NOTSRC 0xd0
134#define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
135#define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
136
a5082316
FB		 137#define CIRRUS_ROP_NOP_INDEX 2
138#define CIRRUS_ROP_SRC_INDEX 5
139
a21ae81d 140// control 0x33
a5082316 141#define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
4c8732d7 142#define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
a5082316 143#define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
a21ae81d 144
e6e5ad80
FB		 145// memory-mapped IO
146#define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
147#define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
148#define CIRRUS_MMIO_BLTWIDTH 0x08 // word
149#define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
150#define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
151#define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
152#define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
153#define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
154#define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
155#define CIRRUS_MMIO_BLTMODE 0x18 // byte
156#define CIRRUS_MMIO_BLTROP 0x1a // byte
157#define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
158#define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
159#define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
160#define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
161#define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
162#define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
163#define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
164#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
165#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
166#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
167#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
168#define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
169#define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
170#define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
171#define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
172#define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
173#define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
174#define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
175
a21ae81d 176#define CIRRUS_PNPMMIO_SIZE 0x1000
e6e5ad80 177
a5082316 178typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
026aeffc
GH		 179 uint32_t dstaddr, int dst_pitch,
180 int width, int height);
e6e5ad80 181
db1015e9 182struct PCICirrusVGAState {
e6e5ad80
FB		 183 PCIDevice dev;
184 CirrusVGAState cirrus_vga;
db1015e9 185};
e6e5ad80 186
d338bae3 187#define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
8063396b 188OBJECT_DECLARE_SIMPLE_TYPE(PCICirrusVGAState, PCI_CIRRUS_VGA)
d338bae3 189
a5082316 190static uint8_t rop_to_index[256];
3b46e624 191
e6e5ad80
FB		 192/***************************************
193 *
194 * prototypes.
195 *
196 ***************************************/
197
198
8926b517
FB		 199static void cirrus_bitblt_reset(CirrusVGAState *s);
200static void cirrus_update_memory_access(CirrusVGAState *s);
e6e5ad80
FB		 201
202/***************************************
203 *
204 * raster operations
205 *
206 ***************************************/
207
d3532a0d
GH		 208static bool blit_region_is_unsafe(struct CirrusVGAState *s,
209 int32_t pitch, int32_t addr)
210{
12e97ec3
GH		 211 if (!pitch) {
212 return true;
213 }
d3532a0d
GH		 214 if (pitch < 0) {
215 int64_t min = addr
62d4c6bd
LQ		 216 + ((int64_t)s->cirrus_blt_height - 1) * pitch
217 - s->cirrus_blt_width;
218 if (min < -1 || addr >= s->vga.vram_size) {
d3532a0d
GH		 219 return true;
220 }
221 } else {
222 int64_t max = addr
223 + ((int64_t)s->cirrus_blt_height-1) * pitch
224 + s->cirrus_blt_width;
d2ba7ecb 225 if (max > s->vga.vram_size) {
d3532a0d
GH		 226 return true;
227 }
228 }
229 return false;
230}
231
12e97ec3 232static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only)
d3532a0d
GH		 233{
234 /* should be the case, see cirrus_bitblt_start */
235 assert(s->cirrus_blt_width > 0);
236 assert(s->cirrus_blt_height > 0);
237
bf259833
GH		 238 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
239 return true;
240 }
241
d3532a0d 242 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
60cd23e8 243 s->cirrus_blt_dstaddr)) {
d3532a0d
GH		 244 return true;
245 }
913a8788
BR		 246 if (dst_only) {
247 return false;
248 }
12e97ec3 249 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
60cd23e8 250 s->cirrus_blt_srcaddr)) {
d3532a0d
GH		 251 return true;
252 }
253
254 return false;
255}
256
a5082316 257static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
ffaf8577 258 uint32_t dstaddr, uint32_t srcaddr,
a5082316
FB		 259 int dstpitch,int srcpitch,
260 int bltwidth,int bltheight)
261{
e6e5ad80
FB		 262}
263
a5082316 264static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
026aeffc 265 uint32_t dstaddr,
a5082316 266 int dstpitch, int bltwidth,int bltheight)
e6e5ad80 267{
a5082316 268}
e6e5ad80 269
ffaf8577
GH		 270static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr)
271{
272 if (s->cirrus_srccounter) {
273 /* cputovideo */
274 return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)];
275 } else {
276 /* videotovideo */
277 return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask];
278 }
279}
280
281static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr)
282{
283 uint16_t *src;
284
285 if (s->cirrus_srccounter) {
286 /* cputovideo */
287 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1];
288 } else {
289 /* videotovideo */
290 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1];
291 }
292 return *src;
293}
294
295static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr)
296{
297 uint32_t *src;
298
299 if (s->cirrus_srccounter) {
300 /* cputovideo */
301 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3];
302 } else {
303 /* videotovideo */
304 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3];
305 }
306 return *src;
307}
308
a5082316 309#define ROP_NAME 0
8c78881f 310#define ROP_FN(d, s) 0
47b43a1f 311#include "cirrus_vga_rop.h"
e6e5ad80 312
a5082316 313#define ROP_NAME src_and_dst
8c78881f 314#define ROP_FN(d, s) (s) & (d)
47b43a1f 315#include "cirrus_vga_rop.h"
e6e5ad80 316
a5082316 317#define ROP_NAME src_and_notdst
8c78881f 318#define ROP_FN(d, s) (s) & (~(d))
47b43a1f 319#include "cirrus_vga_rop.h"
e6e5ad80 320
a5082316 321#define ROP_NAME notdst
8c78881f 322#define ROP_FN(d, s) ~(d)
47b43a1f 323#include "cirrus_vga_rop.h"
e6e5ad80 324
a5082316 325#define ROP_NAME src
8c78881f 326#define ROP_FN(d, s) s
47b43a1f 327#include "cirrus_vga_rop.h"
e6e5ad80 328
a5082316 329#define ROP_NAME 1
8c78881f 330#define ROP_FN(d, s) ~0
47b43a1f 331#include "cirrus_vga_rop.h"
a5082316
FB		 332
333#define ROP_NAME notsrc_and_dst
8c78881f 334#define ROP_FN(d, s) (~(s)) & (d)
47b43a1f 335#include "cirrus_vga_rop.h"
a5082316
FB		 336
337#define ROP_NAME src_xor_dst
8c78881f 338#define ROP_FN(d, s) (s) ^ (d)
47b43a1f 339#include "cirrus_vga_rop.h"
a5082316
FB		 340
341#define ROP_NAME src_or_dst
8c78881f 342#define ROP_FN(d, s) (s) | (d)
47b43a1f 343#include "cirrus_vga_rop.h"
a5082316
FB		 344
345#define ROP_NAME notsrc_or_notdst
8c78881f 346#define ROP_FN(d, s) (~(s)) | (~(d))
47b43a1f 347#include "cirrus_vga_rop.h"
a5082316
FB		 348
349#define ROP_NAME src_notxor_dst
8c78881f 350#define ROP_FN(d, s) ~((s) ^ (d))
47b43a1f 351#include "cirrus_vga_rop.h"
e6e5ad80 352
a5082316 353#define ROP_NAME src_or_notdst
8c78881f 354#define ROP_FN(d, s) (s) | (~(d))
47b43a1f 355#include "cirrus_vga_rop.h"
a5082316
FB		 356
357#define ROP_NAME notsrc
8c78881f 358#define ROP_FN(d, s) (~(s))
47b43a1f 359#include "cirrus_vga_rop.h"
a5082316
FB		 360
361#define ROP_NAME notsrc_or_dst
8c78881f 362#define ROP_FN(d, s) (~(s)) | (d)
47b43a1f 363#include "cirrus_vga_rop.h"
a5082316
FB		 364
365#define ROP_NAME notsrc_and_notdst
8c78881f 366#define ROP_FN(d, s) (~(s)) & (~(d))
47b43a1f 367#include "cirrus_vga_rop.h"
a5082316
FB		 368
369static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
370 cirrus_bitblt_rop_fwd_0,
371 cirrus_bitblt_rop_fwd_src_and_dst,
372 cirrus_bitblt_rop_nop,
373 cirrus_bitblt_rop_fwd_src_and_notdst,
374 cirrus_bitblt_rop_fwd_notdst,
375 cirrus_bitblt_rop_fwd_src,
376 cirrus_bitblt_rop_fwd_1,
377 cirrus_bitblt_rop_fwd_notsrc_and_dst,
378 cirrus_bitblt_rop_fwd_src_xor_dst,
379 cirrus_bitblt_rop_fwd_src_or_dst,
380 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
381 cirrus_bitblt_rop_fwd_src_notxor_dst,
382 cirrus_bitblt_rop_fwd_src_or_notdst,
383 cirrus_bitblt_rop_fwd_notsrc,
384 cirrus_bitblt_rop_fwd_notsrc_or_dst,
385 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
386};
387
388static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
389 cirrus_bitblt_rop_bkwd_0,
390 cirrus_bitblt_rop_bkwd_src_and_dst,
391 cirrus_bitblt_rop_nop,
392 cirrus_bitblt_rop_bkwd_src_and_notdst,
393 cirrus_bitblt_rop_bkwd_notdst,
394 cirrus_bitblt_rop_bkwd_src,
395 cirrus_bitblt_rop_bkwd_1,
396 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
397 cirrus_bitblt_rop_bkwd_src_xor_dst,
398 cirrus_bitblt_rop_bkwd_src_or_dst,
399 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
400 cirrus_bitblt_rop_bkwd_src_notxor_dst,
401 cirrus_bitblt_rop_bkwd_src_or_notdst,
402 cirrus_bitblt_rop_bkwd_notsrc,
403 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
404 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
405};
96cf2df8
TS		 406
407#define TRANSP_ROP(name) {\
408 name ## _8,\
409 name ## _16,\
410 }
411#define TRANSP_NOP(func) {\
412 func,\
413 func,\
414 }
415
416static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
417 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
418 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
419 TRANSP_NOP(cirrus_bitblt_rop_nop),
420 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
421 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
422 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
423 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
424 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
426 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
427 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
432 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
433};
434
435static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
436 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
437 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
438 TRANSP_NOP(cirrus_bitblt_rop_nop),
439 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
440 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
441 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
442 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
443 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
451 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
452};
453
a5082316
FB		 454#define ROP2(name) {\
455 name ## _8,\
456 name ## _16,\
457 name ## _24,\
458 name ## _32,\
459 }
460
461#define ROP_NOP2(func) {\
462 func,\
463 func,\
464 func,\
465 func,\
466 }
467
e69390ce
FB		 468static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
469 ROP2(cirrus_patternfill_0),
470 ROP2(cirrus_patternfill_src_and_dst),
471 ROP_NOP2(cirrus_bitblt_rop_nop),
472 ROP2(cirrus_patternfill_src_and_notdst),
473 ROP2(cirrus_patternfill_notdst),
474 ROP2(cirrus_patternfill_src),
475 ROP2(cirrus_patternfill_1),
476 ROP2(cirrus_patternfill_notsrc_and_dst),
477 ROP2(cirrus_patternfill_src_xor_dst),
478 ROP2(cirrus_patternfill_src_or_dst),
479 ROP2(cirrus_patternfill_notsrc_or_notdst),
480 ROP2(cirrus_patternfill_src_notxor_dst),
481 ROP2(cirrus_patternfill_src_or_notdst),
482 ROP2(cirrus_patternfill_notsrc),
483 ROP2(cirrus_patternfill_notsrc_or_dst),
484 ROP2(cirrus_patternfill_notsrc_and_notdst),
485};
486
a5082316
FB		 487static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
488 ROP2(cirrus_colorexpand_transp_0),
489 ROP2(cirrus_colorexpand_transp_src_and_dst),
490 ROP_NOP2(cirrus_bitblt_rop_nop),
491 ROP2(cirrus_colorexpand_transp_src_and_notdst),
492 ROP2(cirrus_colorexpand_transp_notdst),
493 ROP2(cirrus_colorexpand_transp_src),
494 ROP2(cirrus_colorexpand_transp_1),
495 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
496 ROP2(cirrus_colorexpand_transp_src_xor_dst),
497 ROP2(cirrus_colorexpand_transp_src_or_dst),
498 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
499 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
500 ROP2(cirrus_colorexpand_transp_src_or_notdst),
501 ROP2(cirrus_colorexpand_transp_notsrc),
502 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
503 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
504};
505
506static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
507 ROP2(cirrus_colorexpand_0),
508 ROP2(cirrus_colorexpand_src_and_dst),
509 ROP_NOP2(cirrus_bitblt_rop_nop),
510 ROP2(cirrus_colorexpand_src_and_notdst),
511 ROP2(cirrus_colorexpand_notdst),
512 ROP2(cirrus_colorexpand_src),
513 ROP2(cirrus_colorexpand_1),
514 ROP2(cirrus_colorexpand_notsrc_and_dst),
515 ROP2(cirrus_colorexpand_src_xor_dst),
516 ROP2(cirrus_colorexpand_src_or_dst),
517 ROP2(cirrus_colorexpand_notsrc_or_notdst),
518 ROP2(cirrus_colorexpand_src_notxor_dst),
519 ROP2(cirrus_colorexpand_src_or_notdst),
520 ROP2(cirrus_colorexpand_notsrc),
521 ROP2(cirrus_colorexpand_notsrc_or_dst),
522 ROP2(cirrus_colorexpand_notsrc_and_notdst),
523};
524
b30d4608
FB		 525static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
526 ROP2(cirrus_colorexpand_pattern_transp_0),
527 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
528 ROP_NOP2(cirrus_bitblt_rop_nop),
529 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
530 ROP2(cirrus_colorexpand_pattern_transp_notdst),
531 ROP2(cirrus_colorexpand_pattern_transp_src),
532 ROP2(cirrus_colorexpand_pattern_transp_1),
533 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
534 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
535 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
536 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
537 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
538 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
539 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
540 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
541 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
542};
543
544static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
545 ROP2(cirrus_colorexpand_pattern_0),
546 ROP2(cirrus_colorexpand_pattern_src_and_dst),
547 ROP_NOP2(cirrus_bitblt_rop_nop),
548 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
549 ROP2(cirrus_colorexpand_pattern_notdst),
550 ROP2(cirrus_colorexpand_pattern_src),
551 ROP2(cirrus_colorexpand_pattern_1),
552 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
553 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
554 ROP2(cirrus_colorexpand_pattern_src_or_dst),
555 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
556 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
557 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
558 ROP2(cirrus_colorexpand_pattern_notsrc),
559 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
560 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
561};
562
a5082316
FB		 563static const cirrus_fill_t cirrus_fill[16][4] = {
564 ROP2(cirrus_fill_0),
565 ROP2(cirrus_fill_src_and_dst),
566 ROP_NOP2(cirrus_bitblt_fill_nop),
567 ROP2(cirrus_fill_src_and_notdst),
568 ROP2(cirrus_fill_notdst),
569 ROP2(cirrus_fill_src),
570 ROP2(cirrus_fill_1),
571 ROP2(cirrus_fill_notsrc_and_dst),
572 ROP2(cirrus_fill_src_xor_dst),
573 ROP2(cirrus_fill_src_or_dst),
574 ROP2(cirrus_fill_notsrc_or_notdst),
575 ROP2(cirrus_fill_src_notxor_dst),
576 ROP2(cirrus_fill_src_or_notdst),
577 ROP2(cirrus_fill_notsrc),
578 ROP2(cirrus_fill_notsrc_or_dst),
579 ROP2(cirrus_fill_notsrc_and_notdst),
580};
581
582static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
e6e5ad80 583{
a5082316
FB		 584 unsigned int color;
585 switch (s->cirrus_blt_pixelwidth) {
586 case 1:
587 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
588 break;
589 case 2:
4e12cd94 590 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
a5082316
FB		 591 s->cirrus_blt_fgcol = le16_to_cpu(color);
592 break;
593 case 3:
5fafdf24 594 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
4e12cd94 595 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
a5082316
FB		 596 break;
597 default:
598 case 4:
4e12cd94
AK		 599 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
600 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
a5082316
FB		 601 s->cirrus_blt_fgcol = le32_to_cpu(color);
602 break;
e6e5ad80
FB		 603 }
604}
605
a5082316 606static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
e6e5ad80 607{
a5082316 608 unsigned int color;
e6e5ad80
FB		 609 switch (s->cirrus_blt_pixelwidth) {
610 case 1:
a5082316
FB		 611 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
612 break;
e6e5ad80 613 case 2:
4e12cd94 614 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
a5082316
FB		 615 s->cirrus_blt_bgcol = le16_to_cpu(color);
616 break;
e6e5ad80 617 case 3:
5fafdf24 618 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
4e12cd94 619 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
a5082316 620 break;
e6e5ad80 621 default:
a5082316 622 case 4:
4e12cd94
AK		 623 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
624 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
a5082316
FB		 625 s->cirrus_blt_bgcol = le32_to_cpu(color);
626 break;
e6e5ad80
FB		 627 }
628}
629
630static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
631 int off_pitch, int bytesperline,
632 int lines)
633{
634 int y;
635 int off_cur;
636 int off_cur_end;
637
f153b563
WB		 638 if (off_pitch < 0) {
639 off_begin -= bytesperline - 1;
640 }
641
e6e5ad80 642 for (y = 0; y < lines; y++) {
5fcf7875 643 off_cur = off_begin & s->cirrus_addr_mask;
e048dac6 644 off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1;
5fcf7875
GH		 645 if (off_cur_end >= off_cur) {
646 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
647 } else {
648 /* wraparound */
649 memory_region_set_dirty(&s->vga.vram, off_cur,
650 s->cirrus_addr_mask + 1 - off_cur);
651 memory_region_set_dirty(&s->vga.vram, 0, off_cur_end);
652 }
e048dac6 653 off_begin += off_pitch;
e6e5ad80
FB		 654 }
655}
656
ffaf8577 657static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s)
e6e5ad80 658{
95280c31 659 uint32_t patternsize;
ffaf8577 660 bool videosrc = !s->cirrus_srccounter;
e6e5ad80 661
95280c31
GH		 662 if (videosrc) {
663 switch (s->vga.get_bpp(&s->vga)) {
664 case 8:
665 patternsize = 64;
666 break;
667 case 15:
668 case 16:
669 patternsize = 128;
670 break;
671 case 24:
672 case 32:
673 default:
674 patternsize = 256;
675 break;
676 }
677 s->cirrus_blt_srcaddr &= ~(patternsize - 1);
678 if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) {
679 return 0;
680 }
95280c31
GH		 681 }
682
12e97ec3 683 if (blit_is_unsafe(s, true)) {
b2eb849d 684 return 0;
5858dd18 685 }
b2eb849d 686
ffaf8577
GH		 687 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
688 videosrc ? s->cirrus_blt_srcaddr : 0,
5fafdf24 689 s->cirrus_blt_dstpitch, 0,
e69390ce 690 s->cirrus_blt_width, s->cirrus_blt_height);
e6e5ad80 691 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
e69390ce
FB		 692 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
693 s->cirrus_blt_height);
e6e5ad80
FB		 694 return 1;
695}
696
a21ae81d
FB		 697/* fill */
698
a5082316 699static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
a21ae81d 700{
a5082316 701 cirrus_fill_t rop_func;
a21ae81d 702
12e97ec3 703 if (blit_is_unsafe(s, true)) {
b2eb849d 704 return 0;
d3532a0d 705 }
a5082316 706 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
026aeffc 707 rop_func(s, s->cirrus_blt_dstaddr,
a5082316
FB		 708 s->cirrus_blt_dstpitch,
709 s->cirrus_blt_width, s->cirrus_blt_height);
a21ae81d
FB		 710 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
711 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
712 s->cirrus_blt_height);
713 cirrus_bitblt_reset(s);
714 return 1;
715}
716
e6e5ad80
FB		 717/***************************************
718 *
719 * bitblt (video-to-video)
720 *
721 ***************************************/
722
723static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
724{
ffaf8577 725 return cirrus_bitblt_common_patterncopy(s);
e6e5ad80
FB		 726}
727
4299b90e 728static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
e6e5ad80 729{
78935c4a
AJ		 730 int sx = 0, sy = 0;
731 int dx = 0, dy = 0;
732 int depth = 0;
24236869
FB		 733 int notify = 0;
734
92d675d1
AJ		 735 /* make sure to only copy if it's a plain copy ROP */
736 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
737 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
24236869 738
92d675d1
AJ		 739 int width, height;
740
741 depth = s->vga.get_bpp(&s->vga) / 8;
4299b90e
PP		 742 if (!depth) {
743 return 0;
744 }
92d675d1
AJ		 745 s->vga.get_resolution(&s->vga, &width, &height);
746
747 /* extra x, y */
748 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
749 sy = (src / ABS(s->cirrus_blt_srcpitch));
750 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
751 dy = (dst / ABS(s->cirrus_blt_dstpitch));
24236869 752
92d675d1
AJ		 753 /* normalize width */
754 w /= depth;
24236869 755
92d675d1
AJ		 756 /* if we're doing a backward copy, we have to adjust
757 our x/y to be the upper left corner (instead of the lower
758 right corner) */
759 if (s->cirrus_blt_dstpitch < 0) {
760 sx -= (s->cirrus_blt_width / depth) - 1;
761 dx -= (s->cirrus_blt_width / depth) - 1;
762 sy -= s->cirrus_blt_height - 1;
763 dy -= s->cirrus_blt_height - 1;
764 }
765
766 /* are we in the visible portion of memory? */
767 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
768 (sx + w) <= width && (sy + h) <= height &&
769 (dx + w) <= width && (dy + h) <= height) {
770 notify = 1;
771 }
772 }
24236869 773
026aeffc 774 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
ffaf8577 775 s->cirrus_blt_srcaddr,
e6e5ad80
FB		 776 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
777 s->cirrus_blt_width, s->cirrus_blt_height);
24236869 778
c78f7137 779 if (notify) {
50628d34
GH		 780 dpy_gfx_update(s->vga.con, dx, dy,
781 s->cirrus_blt_width / depth,
782 s->cirrus_blt_height);
c78f7137 783 }
24236869
FB		 784
785 /* we don't have to notify the display that this portion has
38334f76 786 changed since qemu_console_copy implies this */
24236869 787
31c05501
AL		 788 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
789 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
790 s->cirrus_blt_height);
4299b90e
PP		 791
792 return 1;
24236869
FB		 793}
794
795static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
796{
12e97ec3 797 if (blit_is_unsafe(s, false))
65d35a09
AJ		 798 return 0;
799
4299b90e 800 return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
4e12cd94 801 s->cirrus_blt_srcaddr - s->vga.start_addr,
7d957bd8 802 s->cirrus_blt_width, s->cirrus_blt_height);
e6e5ad80
FB		 803}
804
805/***************************************
806 *
807 * bitblt (cpu-to-video)
808 *
809 ***************************************/
810
e6e5ad80
FB		 811static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
812{
813 int copy_count;
a5082316 814 uint8_t *end_ptr;
3b46e624 815
e6e5ad80 816 if (s->cirrus_srccounter > 0) {
a5082316 817 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
ffaf8577 818 cirrus_bitblt_common_patterncopy(s);
a5082316
FB		 819 the_end:
820 s->cirrus_srccounter = 0;
821 cirrus_bitblt_reset(s);
822 } else {
823 /* at least one scan line */
824 do {
026aeffc 825 (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr,
ffaf8577 826 0, 0, 0, s->cirrus_blt_width, 1);
a5082316
FB		 827 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
828 s->cirrus_blt_width, 1);
829 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
830 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
831 if (s->cirrus_srccounter <= 0)
832 goto the_end;
66a0a2cb 833 /* more bytes than needed can be transferred because of
a5082316
FB		 834 word alignment, so we keep them for the next line */
835 /* XXX: keep alignment to speed up transfer */
836 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
837 copy_count = s->cirrus_srcptr_end - end_ptr;
838 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
839 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
840 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
841 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
842 }
e6e5ad80
FB		 843 }
844}
845
846/***************************************
847 *
848 * bitblt wrapper
849 *
850 ***************************************/
851
852static void cirrus_bitblt_reset(CirrusVGAState * s)
853{
f8b237af
AL		 854 int need_update;
855
4e12cd94 856 s->vga.gr[0x31] &=
e6e5ad80 857 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
f8b237af
AL		 858 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
859 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
e6e5ad80
FB		 860 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
861 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
862 s->cirrus_srccounter = 0;
f8b237af
AL		 863 if (!need_update)
864 return;
8926b517 865 cirrus_update_memory_access(s);
e6e5ad80
FB		 866}
867
868static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
869{
a5082316
FB		 870 int w;
871
92f2b88c
GH		 872 if (blit_is_unsafe(s, true)) {
873 return 0;
874 }
875
e6e5ad80
FB		 876 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
877 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
878 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
879
880 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
881 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316 882 s->cirrus_blt_srcpitch = 8;
e6e5ad80 883 } else {
b30d4608 884 /* XXX: check for 24 bpp */
a5082316 885 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
e6e5ad80 886 }
a5082316 887 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
e6e5ad80
FB		 888 } else {
889 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316 890 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
5fafdf24 891 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
a5082316
FB		 892 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
893 else
894 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
e6e5ad80 895 } else {
c9c0eae8
FB		 896 /* always align input size to 32 bits */
897 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
e6e5ad80 898 }
a5082316 899 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
e6e5ad80 900 }
92f2b88c
GH		 901
902 /* the blit_is_unsafe call above should catch this */
903 assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE);
904
a5082316
FB		 905 s->cirrus_srcptr = s->cirrus_bltbuf;
906 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
8926b517 907 cirrus_update_memory_access(s);
e6e5ad80
FB		 908 return 1;
909}
910
911static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
912{
913 /* XXX */
bb6e9e94
PMD		 914 qemu_log_mask(LOG_UNIMP,
915 "cirrus: bitblt (video to cpu) is not implemented\n");
e6e5ad80
FB		 916 return 0;
917}
918
919static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
920{
921 int ret;
922
923 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
924 ret = cirrus_bitblt_videotovideo_patterncopy(s);
925 } else {
926 ret = cirrus_bitblt_videotovideo_copy(s);
927 }
e6e5ad80
FB		 928 if (ret)
929 cirrus_bitblt_reset(s);
930 return ret;
931}
932
933static void cirrus_bitblt_start(CirrusVGAState * s)
934{
935 uint8_t blt_rop;
936
827bd517
GH		 937 if (!s->enable_blitter) {
938 goto bitblt_ignore;
939 }
940
4e12cd94 941 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
a5082316 942
4e12cd94
AK		 943 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
944 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
945 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
946 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
e6e5ad80 947 s->cirrus_blt_dstaddr =
4e12cd94 948 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
e6e5ad80 949 s->cirrus_blt_srcaddr =
4e12cd94
AK		 950 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
951 s->cirrus_blt_mode = s->vga.gr[0x30];
952 s->cirrus_blt_modeext = s->vga.gr[0x33];
953 blt_rop = s->vga.gr[0x32];
e6e5ad80 954
60cd23e8
GH		 955 s->cirrus_blt_dstaddr &= s->cirrus_addr_mask;
956 s->cirrus_blt_srcaddr &= s->cirrus_addr_mask;
957
61527721
PMD		 958 trace_vga_cirrus_bitblt_start(blt_rop,
959 s->cirrus_blt_mode,
960 s->cirrus_blt_modeext,
961 s->cirrus_blt_width,
962 s->cirrus_blt_height,
963 s->cirrus_blt_dstpitch,
964 s->cirrus_blt_srcpitch,
965 s->cirrus_blt_dstaddr,
966 s->cirrus_blt_srcaddr,
967 s->vga.gr[0x2f]);
a21ae81d 968
e6e5ad80
FB		 969 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
970 case CIRRUS_BLTMODE_PIXELWIDTH8:
971 s->cirrus_blt_pixelwidth = 1;
972 break;
973 case CIRRUS_BLTMODE_PIXELWIDTH16:
974 s->cirrus_blt_pixelwidth = 2;
975 break;
976 case CIRRUS_BLTMODE_PIXELWIDTH24:
977 s->cirrus_blt_pixelwidth = 3;
978 break;
979 case CIRRUS_BLTMODE_PIXELWIDTH32:
980 s->cirrus_blt_pixelwidth = 4;
981 break;
982 default:
2b55f4d3
PMD		 983 qemu_log_mask(LOG_GUEST_ERROR,
984 "cirrus: bitblt - pixel width is unknown\n");
e6e5ad80
FB		 985 goto bitblt_ignore;
986 }
987 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
988
989 if ((s->
990 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
991 CIRRUS_BLTMODE_MEMSYSDEST))
992 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
bb6e9e94
PMD		 993 qemu_log_mask(LOG_UNIMP,
994 "cirrus: bitblt - memory-to-memory copy requested\n");
e6e5ad80
FB		 995 goto bitblt_ignore;
996 }
997
a5082316 998 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
5fafdf24 999 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
a21ae81d 1000 CIRRUS_BLTMODE_TRANSPARENTCOMP |
5fafdf24
TS		 1001 CIRRUS_BLTMODE_PATTERNCOPY |
1002 CIRRUS_BLTMODE_COLOREXPAND)) ==
a21ae81d 1003 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
a5082316
FB		 1004 cirrus_bitblt_fgcol(s);
1005 cirrus_bitblt_solidfill(s, blt_rop);
e6e5ad80 1006 } else {
5fafdf24
TS		 1007 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
1008 CIRRUS_BLTMODE_PATTERNCOPY)) ==
a5082316
FB		 1009 CIRRUS_BLTMODE_COLOREXPAND) {
1010
1011 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
b30d4608 1012 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
4c8732d7 1013 cirrus_bitblt_bgcol(s);
b30d4608 1014 else
4c8732d7 1015 cirrus_bitblt_fgcol(s);
b30d4608 1016 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
a5082316
FB		 1017 } else {
1018 cirrus_bitblt_fgcol(s);
1019 cirrus_bitblt_bgcol(s);
1020 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1021 }
e69390ce 1022 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
b30d4608
FB		 1023 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1024 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1025 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1026 cirrus_bitblt_bgcol(s);
1027 else
1028 cirrus_bitblt_fgcol(s);
1029 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1030 } else {
1031 cirrus_bitblt_fgcol(s);
1032 cirrus_bitblt_bgcol(s);
1033 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1034 }
1035 } else {
1036 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1037 }
a21ae81d 1038 } else {
96cf2df8
TS		 1039 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1040 if (s->cirrus_blt_pixelwidth > 2) {
ae3887e6
PMD		 1041 qemu_log_mask(LOG_GUEST_ERROR,
1042 "cirrus: src transparent without colorexpand "
1043 "must be 8bpp or 16bpp\n");
96cf2df8
TS		 1044 goto bitblt_ignore;
1045 }
1046 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1047 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1048 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1049 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1050 } else {
1051 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1052 }
1053 } else {
1054 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1055 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1056 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1057 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1058 } else {
1059 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1060 }
1061 }
1062 }
a21ae81d
FB		 1063 // setup bitblt engine.
1064 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1065 if (!cirrus_bitblt_cputovideo(s))
1066 goto bitblt_ignore;
1067 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1068 if (!cirrus_bitblt_videotocpu(s))
1069 goto bitblt_ignore;
1070 } else {
1071 if (!cirrus_bitblt_videotovideo(s))
1072 goto bitblt_ignore;
1073 }
e6e5ad80 1074 }
e6e5ad80
FB		 1075 return;
1076 bitblt_ignore:;
1077 cirrus_bitblt_reset(s);
1078}
1079
1080static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1081{
1082 unsigned old_value;
1083
4e12cd94
AK		 1084 old_value = s->vga.gr[0x31];
1085 s->vga.gr[0x31] = reg_value;
e6e5ad80
FB		 1086
1087 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1088 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1089 cirrus_bitblt_reset(s);
1090 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1091 ((reg_value & CIRRUS_BLT_START) != 0)) {
e6e5ad80
FB		 1092 cirrus_bitblt_start(s);
1093 }
1094}
1095
1096
1097/***************************************
1098 *
1099 * basic parameters
1100 *
1101 ***************************************/
1102
a4a2f59c 1103static void cirrus_get_offsets(VGACommonState *s1,
83acc96b
FB		 1104 uint32_t *pline_offset,
1105 uint32_t *pstart_addr,
1106 uint32_t *pline_compare)
e6e5ad80 1107{
4e12cd94 1108 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
83acc96b 1109 uint32_t start_addr, line_offset, line_compare;
e6e5ad80 1110
4e12cd94
AK		 1111 line_offset = s->vga.cr[0x13]
1112 | ((s->vga.cr[0x1b] & 0x10) << 4);
e6e5ad80
FB		 1113 line_offset <<= 3;
1114 *pline_offset = line_offset;
1115
4e12cd94
AK		 1116 start_addr = (s->vga.cr[0x0c] << 8)
1117 | s->vga.cr[0x0d]
1118 | ((s->vga.cr[0x1b] & 0x01) << 16)
1119 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1120 | ((s->vga.cr[0x1d] & 0x80) << 12);
e6e5ad80 1121 *pstart_addr = start_addr;
83acc96b 1122
4e12cd94
AK		 1123 line_compare = s->vga.cr[0x18] |
1124 ((s->vga.cr[0x07] & 0x10) << 4) |
1125 ((s->vga.cr[0x09] & 0x40) << 3);
83acc96b 1126 *pline_compare = line_compare;
e6e5ad80
FB		 1127}
1128
1129static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1130{
1131 uint32_t ret = 16;
1132
1133 switch (s->cirrus_hidden_dac_data & 0xf) {
1134 case 0:
1135 ret = 15;
1136 break; /* Sierra HiColor */
1137 case 1:
1138 ret = 16;
1139 break; /* XGA HiColor */
1140 default:
2b55f4d3
PMD		 1141 qemu_log_mask(LOG_GUEST_ERROR,
1142 "cirrus: invalid DAC value 0x%x in 16bpp\n",
1143 (s->cirrus_hidden_dac_data & 0xf));
e6e5ad80
FB		 1144 ret = 15; /* XXX */
1145 break;
1146 }
1147 return ret;
1148}
1149
a4a2f59c 1150static int cirrus_get_bpp(VGACommonState *s1)
e6e5ad80 1151{
4e12cd94 1152 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
e6e5ad80
FB		 1153 uint32_t ret = 8;
1154
4e12cd94 1155 if ((s->vga.sr[0x07] & 0x01) != 0) {
e6e5ad80 1156 /* Cirrus SVGA */
4e12cd94 1157 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
e6e5ad80
FB		 1158 case CIRRUS_SR7_BPP_8:
1159 ret = 8;
1160 break;
1161 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1162 ret = cirrus_get_bpp16_depth(s);
1163 break;
1164 case CIRRUS_SR7_BPP_24:
1165 ret = 24;
1166 break;
1167 case CIRRUS_SR7_BPP_16:
1168 ret = cirrus_get_bpp16_depth(s);
1169 break;
1170 case CIRRUS_SR7_BPP_32:
1171 ret = 32;
1172 break;
1173 default:
1174#ifdef DEBUG_CIRRUS
4e12cd94 1175 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
e6e5ad80
FB		 1176#endif
1177 ret = 8;
1178 break;
1179 }
1180 } else {
1181 /* VGA */
aeb3c85f 1182 ret = 0;
e6e5ad80
FB		 1183 }
1184
1185 return ret;
1186}
1187
a4a2f59c 1188static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
78e127ef
FB		 1189{
1190 int width, height;
3b46e624 1191
78e127ef 1192 width = (s->cr[0x01] + 1) * 8;
5fafdf24
TS		 1193 height = s->cr[0x12] |
1194 ((s->cr[0x07] & 0x02) << 7) |
78e127ef
FB		 1195 ((s->cr[0x07] & 0x40) << 3);
1196 height = (height + 1);
1197 /* interlace support */
1198 if (s->cr[0x1a] & 0x01)
1199 height = height * 2;
1200 *pwidth = width;
1201 *pheight = height;
1202}
1203
e6e5ad80
FB		 1204/***************************************
1205 *
1206 * bank memory
1207 *
1208 ***************************************/
1209
1210static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1211{
1212 unsigned offset;
1213 unsigned limit;
1214
4e12cd94
AK		 1215 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1216 offset = s->vga.gr[0x09 + bank_index];
e6e5ad80 1217 else /* single bank */
4e12cd94 1218 offset = s->vga.gr[0x09];
e6e5ad80 1219
4e12cd94 1220 if ((s->vga.gr[0x0b] & 0x20) != 0)
e6e5ad80
FB		 1221 offset <<= 14;
1222 else
1223 offset <<= 12;
1224
e3a4e4b6 1225 if (s->real_vram_size <= offset)
e6e5ad80
FB		 1226 limit = 0;
1227 else
e3a4e4b6 1228 limit = s->real_vram_size - offset;
e6e5ad80 1229
4e12cd94 1230 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
e6e5ad80
FB		 1231 if (limit > 0x8000) {
1232 offset += 0x8000;
1233 limit -= 0x8000;
1234 } else {
1235 limit = 0;
1236 }
1237 }
1238
1239 if (limit > 0) {
1240 s->cirrus_bank_base[bank_index] = offset;
1241 s->cirrus_bank_limit[bank_index] = limit;
1242 } else {
1243 s->cirrus_bank_base[bank_index] = 0;
1244 s->cirrus_bank_limit[bank_index] = 0;
1245 }
1246}
1247
1248/***************************************
1249 *
1250 * I/O access between 0x3c4-0x3c5
1251 *
1252 ***************************************/
1253
8a82c322 1254static int cirrus_vga_read_sr(CirrusVGAState * s)
e6e5ad80 1255{
8a82c322 1256 switch (s->vga.sr_index) {
e6e5ad80
FB		 1257 case 0x00: // Standard VGA
1258 case 0x01: // Standard VGA
1259 case 0x02: // Standard VGA
1260 case 0x03: // Standard VGA
1261 case 0x04: // Standard VGA
8a82c322 1262 return s->vga.sr[s->vga.sr_index];
e6e5ad80 1263 case 0x06: // Unlock Cirrus extensions
8a82c322 1264 return s->vga.sr[s->vga.sr_index];
e6e5ad80
FB		 1265 case 0x10:
1266 case 0x30:
1267 case 0x50:
1268 case 0x70: // Graphics Cursor X
1269 case 0x90:
1270 case 0xb0:
1271 case 0xd0:
1272 case 0xf0: // Graphics Cursor X
8a82c322 1273 return s->vga.sr[0x10];
e6e5ad80
FB		 1274 case 0x11:
1275 case 0x31:
1276 case 0x51:
1277 case 0x71: // Graphics Cursor Y
1278 case 0x91:
1279 case 0xb1:
1280 case 0xd1:
a5082316 1281 case 0xf1: // Graphics Cursor Y
8a82c322 1282 return s->vga.sr[0x11];
aeb3c85f
FB		 1283 case 0x05: // ???
1284 case 0x07: // Extended Sequencer Mode
1285 case 0x08: // EEPROM Control
1286 case 0x09: // Scratch Register 0
1287 case 0x0a: // Scratch Register 1
1288 case 0x0b: // VCLK 0
1289 case 0x0c: // VCLK 1
1290 case 0x0d: // VCLK 2
1291 case 0x0e: // VCLK 3
1292 case 0x0f: // DRAM Control
e6e5ad80
FB		 1293 case 0x12: // Graphics Cursor Attribute
1294 case 0x13: // Graphics Cursor Pattern Address
1295 case 0x14: // Scratch Register 2
1296 case 0x15: // Scratch Register 3
1297 case 0x16: // Performance Tuning Register
1298 case 0x17: // Configuration Readback and Extended Control
1299 case 0x18: // Signature Generator Control
1300 case 0x19: // Signal Generator Result
1301 case 0x1a: // Signal Generator Result
1302 case 0x1b: // VCLK 0 Denominator & Post
1303 case 0x1c: // VCLK 1 Denominator & Post
1304 case 0x1d: // VCLK 2 Denominator & Post
1305 case 0x1e: // VCLK 3 Denominator & Post
1306 case 0x1f: // BIOS Write Enable and MCLK select
1307#ifdef DEBUG_CIRRUS
8a82c322 1308 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
e6e5ad80 1309#endif
8a82c322 1310 return s->vga.sr[s->vga.sr_index];
e6e5ad80 1311 default:
2b55f4d3
PMD		 1312 qemu_log_mask(LOG_GUEST_ERROR,
1313 "cirrus: inport sr_index 0x%02x\n", s->vga.sr_index);
8a82c322 1314 return 0xff;
e6e5ad80 1315 }
e6e5ad80
FB		 1316}
1317
31c63201 1318static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
e6e5ad80 1319{
31c63201 1320 switch (s->vga.sr_index) {
e6e5ad80
FB		 1321 case 0x00: // Standard VGA
1322 case 0x01: // Standard VGA
1323 case 0x02: // Standard VGA
1324 case 0x03: // Standard VGA
1325 case 0x04: // Standard VGA
31c63201
JQ		 1326 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1327 if (s->vga.sr_index == 1)
1328 s->vga.update_retrace_info(&s->vga);
1329 break;
e6e5ad80 1330 case 0x06: // Unlock Cirrus extensions
31c63201
JQ		 1331 val &= 0x17;
1332 if (val == 0x12) {
1333 s->vga.sr[s->vga.sr_index] = 0x12;
e6e5ad80 1334 } else {
31c63201 1335 s->vga.sr[s->vga.sr_index] = 0x0f;
e6e5ad80
FB		 1336 }
1337 break;
1338 case 0x10:
1339 case 0x30:
1340 case 0x50:
1341 case 0x70: // Graphics Cursor X
1342 case 0x90:
1343 case 0xb0:
1344 case 0xd0:
1345 case 0xf0: // Graphics Cursor X
31c63201 1346 s->vga.sr[0x10] = val;
22382bb9 1347 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
e6e5ad80
FB		 1348 break;
1349 case 0x11:
1350 case 0x31:
1351 case 0x51:
1352 case 0x71: // Graphics Cursor Y
1353 case 0x91:
1354 case 0xb1:
1355 case 0xd1:
1356 case 0xf1: // Graphics Cursor Y
31c63201 1357 s->vga.sr[0x11] = val;
22382bb9 1358 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
e6e5ad80
FB		 1359 break;
1360 case 0x07: // Extended Sequencer Mode
edd7541b
PB		 1361 cirrus_update_memory_access(s);
1362 /* fall through */
e6e5ad80
FB		 1363 case 0x08: // EEPROM Control
1364 case 0x09: // Scratch Register 0
1365 case 0x0a: // Scratch Register 1
1366 case 0x0b: // VCLK 0
1367 case 0x0c: // VCLK 1
1368 case 0x0d: // VCLK 2
1369 case 0x0e: // VCLK 3
1370 case 0x0f: // DRAM Control
e6e5ad80
FB		 1371 case 0x13: // Graphics Cursor Pattern Address
1372 case 0x14: // Scratch Register 2
1373 case 0x15: // Scratch Register 3
1374 case 0x16: // Performance Tuning Register
e6e5ad80
FB		 1375 case 0x18: // Signature Generator Control
1376 case 0x19: // Signature Generator Result
1377 case 0x1a: // Signature Generator Result
1378 case 0x1b: // VCLK 0 Denominator & Post
1379 case 0x1c: // VCLK 1 Denominator & Post
1380 case 0x1d: // VCLK 2 Denominator & Post
1381 case 0x1e: // VCLK 3 Denominator & Post
1382 case 0x1f: // BIOS Write Enable and MCLK select
31c63201 1383 s->vga.sr[s->vga.sr_index] = val;
e6e5ad80
FB		 1384#ifdef DEBUG_CIRRUS
1385 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
31c63201 1386 s->vga.sr_index, val);
e6e5ad80
FB		 1387#endif
1388 break;
b9fd11b8
BH		 1389 case 0x12: // Graphics Cursor Attribute
1390 s->vga.sr[0x12] = val;
1391 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
1392#ifdef DEBUG_CIRRUS
1393 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
1394 val, s->vga.force_shadow);
1395#endif
1396 break;
8926b517 1397 case 0x17: // Configuration Readback and Extended Control
31c63201
JQ		 1398 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1399 | (val & 0xc7);
8926b517
FB		 1400 cirrus_update_memory_access(s);
1401 break;
e6e5ad80 1402 default:
2b55f4d3
PMD		 1403 qemu_log_mask(LOG_GUEST_ERROR,
1404 "cirrus: outport sr_index 0x%02x, sr_value 0x%02x\n",
1405 s->vga.sr_index, val);
e6e5ad80
FB		 1406 break;
1407 }
e6e5ad80
FB		 1408}
1409
1410/***************************************
1411 *
1412 * I/O access at 0x3c6
1413 *
1414 ***************************************/
1415
957c9db5 1416static int cirrus_read_hidden_dac(CirrusVGAState * s)
e6e5ad80 1417{
a21ae81d 1418 if (++s->cirrus_hidden_dac_lockindex == 5) {
957c9db5
JQ		 1419 s->cirrus_hidden_dac_lockindex = 0;
1420 return s->cirrus_hidden_dac_data;
e6e5ad80 1421 }
957c9db5 1422 return 0xff;
e6e5ad80
FB		 1423}
1424
1425static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1426{
1427 if (s->cirrus_hidden_dac_lockindex == 4) {
1428 s->cirrus_hidden_dac_data = reg_value;
a21ae81d 1429#if defined(DEBUG_CIRRUS)
e6e5ad80
FB		 1430 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1431#endif
1432 }
1433 s->cirrus_hidden_dac_lockindex = 0;
1434}
1435
1436/***************************************
1437 *
1438 * I/O access at 0x3c9
1439 *
1440 ***************************************/
1441
5deaeee3 1442static int cirrus_vga_read_palette(CirrusVGAState * s)
e6e5ad80 1443{
5deaeee3
JQ		 1444 int val;
1445
1446 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1447 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1448 s->vga.dac_sub_index];
1449 } else {
1450 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1451 }
4e12cd94
AK		 1452 if (++s->vga.dac_sub_index == 3) {
1453 s->vga.dac_sub_index = 0;
1454 s->vga.dac_read_index++;
e6e5ad80 1455 }
5deaeee3 1456 return val;
e6e5ad80
FB		 1457}
1458
86948bb1 1459static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
e6e5ad80 1460{
4e12cd94
AK		 1461 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1462 if (++s->vga.dac_sub_index == 3) {
86948bb1
JQ		 1463 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1464 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1465 s->vga.dac_cache, 3);
1466 } else {
1467 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1468 }
a5082316 1469 /* XXX update cursor */
4e12cd94
AK		 1470 s->vga.dac_sub_index = 0;
1471 s->vga.dac_write_index++;
e6e5ad80 1472 }
e6e5ad80
FB		 1473}
1474
1475/***************************************
1476 *
1477 * I/O access between 0x3ce-0x3cf
1478 *
1479 ***************************************/
1480
f705db9d 1481static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
e6e5ad80
FB		 1482{
1483 switch (reg_index) {
aeb3c85f 1484 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
f705db9d 1485 return s->cirrus_shadow_gr0;
aeb3c85f 1486 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
f705db9d 1487 return s->cirrus_shadow_gr1;
e6e5ad80
FB		 1488 case 0x02: // Standard VGA
1489 case 0x03: // Standard VGA
1490 case 0x04: // Standard VGA
1491 case 0x06: // Standard VGA
1492 case 0x07: // Standard VGA
1493 case 0x08: // Standard VGA
f705db9d 1494 return s->vga.gr[s->vga.gr_index];
e6e5ad80
FB		 1495 case 0x05: // Standard VGA, Cirrus extended mode
1496 default:
1497 break;
1498 }
1499
1500 if (reg_index < 0x3a) {
f705db9d 1501 return s->vga.gr[reg_index];
e6e5ad80 1502 } else {
2b55f4d3
PMD		 1503 qemu_log_mask(LOG_GUEST_ERROR,
1504 "cirrus: inport gr_index 0x%02x\n", reg_index);
f705db9d 1505 return 0xff;
e6e5ad80 1506 }
e6e5ad80
FB		 1507}
1508
22286bc6
JQ		 1509static void
1510cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
e6e5ad80 1511{
bee61ca2 1512 trace_vga_cirrus_write_gr(reg_index, reg_value);
e6e5ad80
FB		 1513 switch (reg_index) {
1514 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
f22f5b07 1515 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
aeb3c85f 1516 s->cirrus_shadow_gr0 = reg_value;
22286bc6 1517 break;
e6e5ad80 1518 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
f22f5b07 1519 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
aeb3c85f 1520 s->cirrus_shadow_gr1 = reg_value;
22286bc6 1521 break;
e6e5ad80
FB		 1522 case 0x02: // Standard VGA
1523 case 0x03: // Standard VGA
1524 case 0x04: // Standard VGA
1525 case 0x06: // Standard VGA
1526 case 0x07: // Standard VGA
1527 case 0x08: // Standard VGA
22286bc6
JQ		 1528 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1529 break;
e6e5ad80 1530 case 0x05: // Standard VGA, Cirrus extended mode
4e12cd94 1531 s->vga.gr[reg_index] = reg_value & 0x7f;
8926b517 1532 cirrus_update_memory_access(s);
e6e5ad80
FB		 1533 break;
1534 case 0x09: // bank offset #0
1535 case 0x0A: // bank offset #1
4e12cd94 1536 s->vga.gr[reg_index] = reg_value;
8926b517
FB		 1537 cirrus_update_bank_ptr(s, 0);
1538 cirrus_update_bank_ptr(s, 1);
2bec46dc 1539 cirrus_update_memory_access(s);
8926b517 1540 break;
e6e5ad80 1541 case 0x0B:
4e12cd94 1542 s->vga.gr[reg_index] = reg_value;
e6e5ad80
FB		 1543 cirrus_update_bank_ptr(s, 0);
1544 cirrus_update_bank_ptr(s, 1);
8926b517 1545 cirrus_update_memory_access(s);
e6e5ad80
FB		 1546 break;
1547 case 0x10: // BGCOLOR 0x0000ff00
1548 case 0x11: // FGCOLOR 0x0000ff00
1549 case 0x12: // BGCOLOR 0x00ff0000
1550 case 0x13: // FGCOLOR 0x00ff0000
1551 case 0x14: // BGCOLOR 0xff000000
1552 case 0x15: // FGCOLOR 0xff000000
1553 case 0x20: // BLT WIDTH 0x0000ff
1554 case 0x22: // BLT HEIGHT 0x0000ff
1555 case 0x24: // BLT DEST PITCH 0x0000ff
1556 case 0x26: // BLT SRC PITCH 0x0000ff
1557 case 0x28: // BLT DEST ADDR 0x0000ff
1558 case 0x29: // BLT DEST ADDR 0x00ff00
1559 case 0x2c: // BLT SRC ADDR 0x0000ff
1560 case 0x2d: // BLT SRC ADDR 0x00ff00
a5082316 1561 case 0x2f: // BLT WRITEMASK
e6e5ad80
FB		 1562 case 0x30: // BLT MODE
1563 case 0x32: // RASTER OP
a21ae81d 1564 case 0x33: // BLT MODEEXT
e6e5ad80
FB		 1565 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1566 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1567 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1568 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
4e12cd94 1569 s->vga.gr[reg_index] = reg_value;
e6e5ad80
FB		 1570 break;
1571 case 0x21: // BLT WIDTH 0x001f00
1572 case 0x23: // BLT HEIGHT 0x001f00
1573 case 0x25: // BLT DEST PITCH 0x001f00
1574 case 0x27: // BLT SRC PITCH 0x001f00
4e12cd94 1575 s->vga.gr[reg_index] = reg_value & 0x1f;
e6e5ad80
FB		 1576 break;
1577 case 0x2a: // BLT DEST ADDR 0x3f0000
4e12cd94 1578 s->vga.gr[reg_index] = reg_value & 0x3f;
a5082316 1579 /* if auto start mode, starts bit blt now */
4e12cd94 1580 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
a5082316
FB		 1581 cirrus_bitblt_start(s);
1582 }
1583 break;
e6e5ad80 1584 case 0x2e: // BLT SRC ADDR 0x3f0000
4e12cd94 1585 s->vga.gr[reg_index] = reg_value & 0x3f;
e6e5ad80
FB		 1586 break;
1587 case 0x31: // BLT STATUS/START
1588 cirrus_write_bitblt(s, reg_value);
1589 break;
1590 default:
2b55f4d3
PMD		 1591 qemu_log_mask(LOG_GUEST_ERROR,
1592 "cirrus: outport gr_index 0x%02x, gr_value 0x%02x\n",
1593 reg_index, reg_value);
e6e5ad80
FB		 1594 break;
1595 }
e6e5ad80
FB		 1596}
1597
1598/***************************************
1599 *
1600 * I/O access between 0x3d4-0x3d5
1601 *
1602 ***************************************/
1603
b863d514 1604static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
e6e5ad80
FB		 1605{
1606 switch (reg_index) {
1607 case 0x00: // Standard VGA
1608 case 0x01: // Standard VGA
1609 case 0x02: // Standard VGA
1610 case 0x03: // Standard VGA
1611 case 0x04: // Standard VGA
1612 case 0x05: // Standard VGA
1613 case 0x06: // Standard VGA
1614 case 0x07: // Standard VGA
1615 case 0x08: // Standard VGA
1616 case 0x09: // Standard VGA
1617 case 0x0a: // Standard VGA
1618 case 0x0b: // Standard VGA
1619 case 0x0c: // Standard VGA
1620 case 0x0d: // Standard VGA
1621 case 0x0e: // Standard VGA
1622 case 0x0f: // Standard VGA
1623 case 0x10: // Standard VGA
1624 case 0x11: // Standard VGA
1625 case 0x12: // Standard VGA
1626 case 0x13: // Standard VGA
1627 case 0x14: // Standard VGA
1628 case 0x15: // Standard VGA
1629 case 0x16: // Standard VGA
1630 case 0x17: // Standard VGA
1631 case 0x18: // Standard VGA
b863d514 1632 return s->vga.cr[s->vga.cr_index];
ca896ef3 1633 case 0x24: // Attribute Controller Toggle Readback (R)
b863d514 1634 return (s->vga.ar_flip_flop << 7);
e6e5ad80
FB		 1635 case 0x19: // Interlace End
1636 case 0x1a: // Miscellaneous Control
1637 case 0x1b: // Extended Display Control
1638 case 0x1c: // Sync Adjust and Genlock
1639 case 0x1d: // Overlay Extended Control
1640 case 0x22: // Graphics Data Latches Readback (R)
e6e5ad80
FB		 1641 case 0x25: // Part Status
1642 case 0x27: // Part ID (R)
b863d514 1643 return s->vga.cr[s->vga.cr_index];
e6e5ad80 1644 case 0x26: // Attribute Controller Index Readback (R)
b863d514 1645 return s->vga.ar_index & 0x3f;
e6e5ad80 1646 default:
2b55f4d3
PMD		 1647 qemu_log_mask(LOG_GUEST_ERROR,
1648 "cirrus: inport cr_index 0x%02x\n", reg_index);
b863d514 1649 return 0xff;
e6e5ad80 1650 }
e6e5ad80
FB		 1651}
1652
4ec1ce04 1653static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
e6e5ad80 1654{
4ec1ce04 1655 switch (s->vga.cr_index) {
e6e5ad80
FB		 1656 case 0x00: // Standard VGA
1657 case 0x01: // Standard VGA
1658 case 0x02: // Standard VGA
1659 case 0x03: // Standard VGA
1660 case 0x04: // Standard VGA
1661 case 0x05: // Standard VGA
1662 case 0x06: // Standard VGA
1663 case 0x07: // Standard VGA
1664 case 0x08: // Standard VGA
1665 case 0x09: // Standard VGA
1666 case 0x0a: // Standard VGA
1667 case 0x0b: // Standard VGA
1668 case 0x0c: // Standard VGA
1669 case 0x0d: // Standard VGA
1670 case 0x0e: // Standard VGA
1671 case 0x0f: // Standard VGA
1672 case 0x10: // Standard VGA
1673 case 0x11: // Standard VGA
1674 case 0x12: // Standard VGA
1675 case 0x13: // Standard VGA
1676 case 0x14: // Standard VGA
1677 case 0x15: // Standard VGA
1678 case 0x16: // Standard VGA
1679 case 0x17: // Standard VGA
1680 case 0x18: // Standard VGA
4ec1ce04
JQ		 1681 /* handle CR0-7 protection */
1682 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1683 /* can always write bit 4 of CR7 */
1684 if (s->vga.cr_index == 7)
1685 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1686 return;
1687 }
1688 s->vga.cr[s->vga.cr_index] = reg_value;
1689 switch(s->vga.cr_index) {
1690 case 0x00:
1691 case 0x04:
1692 case 0x05:
1693 case 0x06:
1694 case 0x07:
1695 case 0x11:
1696 case 0x17:
1697 s->vga.update_retrace_info(&s->vga);
1698 break;
1699 }
1700 break;
e6e5ad80
FB		 1701 case 0x19: // Interlace End
1702 case 0x1a: // Miscellaneous Control
1703 case 0x1b: // Extended Display Control
1704 case 0x1c: // Sync Adjust and Genlock
ae184e4a 1705 case 0x1d: // Overlay Extended Control
4ec1ce04 1706 s->vga.cr[s->vga.cr_index] = reg_value;
e6e5ad80
FB		 1707#ifdef DEBUG_CIRRUS
1708 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
4ec1ce04 1709 s->vga.cr_index, reg_value);
e6e5ad80
FB		 1710#endif
1711 break;
1712 case 0x22: // Graphics Data Latches Readback (R)
1713 case 0x24: // Attribute Controller Toggle Readback (R)
1714 case 0x26: // Attribute Controller Index Readback (R)
1715 case 0x27: // Part ID (R)
1716 break;
e6e5ad80
FB		 1717 case 0x25: // Part Status
1718 default:
2b55f4d3
PMD		 1719 qemu_log_mask(LOG_GUEST_ERROR,
1720 "cirrus: outport cr_index 0x%02x, cr_value 0x%02x\n",
1721 s->vga.cr_index, reg_value);
e6e5ad80
FB		 1722 break;
1723 }
e6e5ad80
FB		 1724}
1725
1726/***************************************
1727 *
1728 * memory-mapped I/O (bitblt)
1729 *
1730 ***************************************/
1731
1732static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1733{
1734 int value = 0xff;
1735
1736 switch (address) {
1737 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
f705db9d 1738 value = cirrus_vga_read_gr(s, 0x00);
e6e5ad80
FB		 1739 break;
1740 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
f705db9d 1741 value = cirrus_vga_read_gr(s, 0x10);
e6e5ad80
FB		 1742 break;
1743 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
f705db9d 1744 value = cirrus_vga_read_gr(s, 0x12);
e6e5ad80
FB		 1745 break;
1746 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
f705db9d 1747 value = cirrus_vga_read_gr(s, 0x14);
e6e5ad80
FB		 1748 break;
1749 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
f705db9d 1750 value = cirrus_vga_read_gr(s, 0x01);
e6e5ad80
FB		 1751 break;
1752 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
f705db9d 1753 value = cirrus_vga_read_gr(s, 0x11);
e6e5ad80
FB		 1754 break;
1755 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
f705db9d 1756 value = cirrus_vga_read_gr(s, 0x13);
e6e5ad80
FB		 1757 break;
1758 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
f705db9d 1759 value = cirrus_vga_read_gr(s, 0x15);
e6e5ad80
FB		 1760 break;
1761 case (CIRRUS_MMIO_BLTWIDTH + 0):
f705db9d 1762 value = cirrus_vga_read_gr(s, 0x20);
e6e5ad80
FB		 1763 break;
1764 case (CIRRUS_MMIO_BLTWIDTH + 1):
f705db9d 1765 value = cirrus_vga_read_gr(s, 0x21);
e6e5ad80
FB		 1766 break;
1767 case (CIRRUS_MMIO_BLTHEIGHT + 0):
f705db9d 1768 value = cirrus_vga_read_gr(s, 0x22);
e6e5ad80
FB		 1769 break;
1770 case (CIRRUS_MMIO_BLTHEIGHT + 1):
f705db9d 1771 value = cirrus_vga_read_gr(s, 0x23);
e6e5ad80
FB		 1772 break;
1773 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
f705db9d 1774 value = cirrus_vga_read_gr(s, 0x24);
e6e5ad80
FB		 1775 break;
1776 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
f705db9d 1777 value = cirrus_vga_read_gr(s, 0x25);
e6e5ad80
FB		 1778 break;
1779 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
f705db9d 1780 value = cirrus_vga_read_gr(s, 0x26);
e6e5ad80
FB		 1781 break;
1782 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
f705db9d 1783 value = cirrus_vga_read_gr(s, 0x27);
e6e5ad80
FB		 1784 break;
1785 case (CIRRUS_MMIO_BLTDESTADDR + 0):
f705db9d 1786 value = cirrus_vga_read_gr(s, 0x28);
e6e5ad80
FB		 1787 break;
1788 case (CIRRUS_MMIO_BLTDESTADDR + 1):
f705db9d 1789 value = cirrus_vga_read_gr(s, 0x29);
e6e5ad80
FB		 1790 break;
1791 case (CIRRUS_MMIO_BLTDESTADDR + 2):
f705db9d 1792 value = cirrus_vga_read_gr(s, 0x2a);
e6e5ad80
FB		 1793 break;
1794 case (CIRRUS_MMIO_BLTSRCADDR + 0):
f705db9d 1795 value = cirrus_vga_read_gr(s, 0x2c);
e6e5ad80
FB		 1796 break;
1797 case (CIRRUS_MMIO_BLTSRCADDR + 1):
f705db9d 1798 value = cirrus_vga_read_gr(s, 0x2d);
e6e5ad80
FB		 1799 break;
1800 case (CIRRUS_MMIO_BLTSRCADDR + 2):
f705db9d 1801 value = cirrus_vga_read_gr(s, 0x2e);
e6e5ad80
FB		 1802 break;
1803 case CIRRUS_MMIO_BLTWRITEMASK:
f705db9d 1804 value = cirrus_vga_read_gr(s, 0x2f);
e6e5ad80
FB		 1805 break;
1806 case CIRRUS_MMIO_BLTMODE:
f705db9d 1807 value = cirrus_vga_read_gr(s, 0x30);
e6e5ad80
FB		 1808 break;
1809 case CIRRUS_MMIO_BLTROP:
f705db9d 1810 value = cirrus_vga_read_gr(s, 0x32);
e6e5ad80 1811 break;
a21ae81d 1812 case CIRRUS_MMIO_BLTMODEEXT:
f705db9d 1813 value = cirrus_vga_read_gr(s, 0x33);
a21ae81d 1814 break;
e6e5ad80 1815 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
f705db9d 1816 value = cirrus_vga_read_gr(s, 0x34);
e6e5ad80
FB		 1817 break;
1818 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
f705db9d 1819 value = cirrus_vga_read_gr(s, 0x35);
e6e5ad80
FB		 1820 break;
1821 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
f705db9d 1822 value = cirrus_vga_read_gr(s, 0x38);
e6e5ad80
FB		 1823 break;
1824 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
f705db9d 1825 value = cirrus_vga_read_gr(s, 0x39);
e6e5ad80
FB		 1826 break;
1827 case CIRRUS_MMIO_BLTSTATUS:
f705db9d 1828 value = cirrus_vga_read_gr(s, 0x31);
e6e5ad80
FB		 1829 break;
1830 default:
2b55f4d3
PMD		 1831 qemu_log_mask(LOG_GUEST_ERROR,
1832 "cirrus: mmio read - address 0x%04x\n", address);
e6e5ad80
FB		 1833 break;
1834 }
1835
ec87f206 1836 trace_vga_cirrus_write_blt(address, value);
e6e5ad80
FB		 1837 return (uint8_t) value;
1838}
1839
1840static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1841 uint8_t value)
1842{
ec87f206 1843 trace_vga_cirrus_write_blt(address, value);
e6e5ad80
FB		 1844 switch (address) {
1845 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
22286bc6 1846 cirrus_vga_write_gr(s, 0x00, value);
e6e5ad80
FB		 1847 break;
1848 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
22286bc6 1849 cirrus_vga_write_gr(s, 0x10, value);
e6e5ad80
FB		 1850 break;
1851 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
22286bc6 1852 cirrus_vga_write_gr(s, 0x12, value);
e6e5ad80
FB		 1853 break;
1854 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
22286bc6 1855 cirrus_vga_write_gr(s, 0x14, value);
e6e5ad80
FB		 1856 break;
1857 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
22286bc6 1858 cirrus_vga_write_gr(s, 0x01, value);
e6e5ad80
FB		 1859 break;
1860 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
22286bc6 1861 cirrus_vga_write_gr(s, 0x11, value);
e6e5ad80
FB		 1862 break;
1863 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
22286bc6 1864 cirrus_vga_write_gr(s, 0x13, value);
e6e5ad80
FB		 1865 break;
1866 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
22286bc6 1867 cirrus_vga_write_gr(s, 0x15, value);
e6e5ad80
FB		 1868 break;
1869 case (CIRRUS_MMIO_BLTWIDTH + 0):
22286bc6 1870 cirrus_vga_write_gr(s, 0x20, value);
e6e5ad80
FB		 1871 break;
1872 case (CIRRUS_MMIO_BLTWIDTH + 1):
22286bc6 1873 cirrus_vga_write_gr(s, 0x21, value);
e6e5ad80
FB		 1874 break;
1875 case (CIRRUS_MMIO_BLTHEIGHT + 0):
22286bc6 1876 cirrus_vga_write_gr(s, 0x22, value);
e6e5ad80
FB		 1877 break;
1878 case (CIRRUS_MMIO_BLTHEIGHT + 1):
22286bc6 1879 cirrus_vga_write_gr(s, 0x23, value);
e6e5ad80
FB		 1880 break;
1881 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
22286bc6 1882 cirrus_vga_write_gr(s, 0x24, value);
e6e5ad80
FB		 1883 break;
1884 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
22286bc6 1885 cirrus_vga_write_gr(s, 0x25, value);
e6e5ad80
FB		 1886 break;
1887 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
22286bc6 1888 cirrus_vga_write_gr(s, 0x26, value);
e6e5ad80
FB		 1889 break;
1890 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
22286bc6 1891 cirrus_vga_write_gr(s, 0x27, value);
e6e5ad80
FB		 1892 break;
1893 case (CIRRUS_MMIO_BLTDESTADDR + 0):
22286bc6 1894 cirrus_vga_write_gr(s, 0x28, value);
e6e5ad80
FB		 1895 break;
1896 case (CIRRUS_MMIO_BLTDESTADDR + 1):
22286bc6 1897 cirrus_vga_write_gr(s, 0x29, value);
e6e5ad80
FB		 1898 break;
1899 case (CIRRUS_MMIO_BLTDESTADDR + 2):
22286bc6 1900 cirrus_vga_write_gr(s, 0x2a, value);
e6e5ad80
FB		 1901 break;
1902 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1903 /* ignored */
1904 break;
1905 case (CIRRUS_MMIO_BLTSRCADDR + 0):
22286bc6 1906 cirrus_vga_write_gr(s, 0x2c, value);
e6e5ad80
FB		 1907 break;
1908 case (CIRRUS_MMIO_BLTSRCADDR + 1):
22286bc6 1909 cirrus_vga_write_gr(s, 0x2d, value);
e6e5ad80
FB		 1910 break;
1911 case (CIRRUS_MMIO_BLTSRCADDR + 2):
22286bc6 1912 cirrus_vga_write_gr(s, 0x2e, value);
e6e5ad80
FB		 1913 break;
1914 case CIRRUS_MMIO_BLTWRITEMASK:
22286bc6 1915 cirrus_vga_write_gr(s, 0x2f, value);
e6e5ad80
FB		 1916 break;
1917 case CIRRUS_MMIO_BLTMODE:
22286bc6 1918 cirrus_vga_write_gr(s, 0x30, value);
e6e5ad80
FB		 1919 break;
1920 case CIRRUS_MMIO_BLTROP:
22286bc6 1921 cirrus_vga_write_gr(s, 0x32, value);
e6e5ad80 1922 break;
a21ae81d 1923 case CIRRUS_MMIO_BLTMODEEXT:
22286bc6 1924 cirrus_vga_write_gr(s, 0x33, value);
a21ae81d 1925 break;
e6e5ad80 1926 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
22286bc6 1927 cirrus_vga_write_gr(s, 0x34, value);
e6e5ad80
FB		 1928 break;
1929 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
22286bc6 1930 cirrus_vga_write_gr(s, 0x35, value);
e6e5ad80
FB		 1931 break;
1932 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
22286bc6 1933 cirrus_vga_write_gr(s, 0x38, value);
e6e5ad80
FB		 1934 break;
1935 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
22286bc6 1936 cirrus_vga_write_gr(s, 0x39, value);
e6e5ad80
FB		 1937 break;
1938 case CIRRUS_MMIO_BLTSTATUS:
22286bc6 1939 cirrus_vga_write_gr(s, 0x31, value);
e6e5ad80
FB		 1940 break;
1941 default:
2b55f4d3
PMD		 1942 qemu_log_mask(LOG_GUEST_ERROR,
1943 "cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1944 address, value);
e6e5ad80
FB		 1945 break;
1946 }
1947}
1948
e6e5ad80
FB		 1949/***************************************
1950 *
1951 * write mode 4/5
1952 *
e6e5ad80
FB		 1953 ***************************************/
1954
1955static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1956 unsigned mode,
1957 unsigned offset,
1958 uint32_t mem_value)
1959{
1960 int x;
1961 unsigned val = mem_value;
1962 uint8_t *dst;
1963
e6e5ad80 1964 for (x = 0; x < 8; x++) {
eb38e1bc 1965 dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask);
e6e5ad80 1966 if (val & 0x80) {
0b74ed78 1967 *dst = s->cirrus_shadow_gr1;
e6e5ad80 1968 } else if (mode == 5) {
0b74ed78 1969 *dst = s->cirrus_shadow_gr0;
e6e5ad80
FB		 1970 }
1971 val <<= 1;
1972 }
fd4aa979 1973 memory_region_set_dirty(&s->vga.vram, offset, 8);
e6e5ad80
FB		 1974}
1975
1976static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1977 unsigned mode,
1978 unsigned offset,
1979 uint32_t mem_value)
1980{
1981 int x;
1982 unsigned val = mem_value;
1983 uint8_t *dst;
1984
e6e5ad80 1985 for (x = 0; x < 8; x++) {
eb38e1bc 1986 dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1);
e6e5ad80 1987 if (val & 0x80) {
0b74ed78 1988 *dst = s->cirrus_shadow_gr1;
4e12cd94 1989 *(dst + 1) = s->vga.gr[0x11];
e6e5ad80 1990 } else if (mode == 5) {
0b74ed78 1991 *dst = s->cirrus_shadow_gr0;
4e12cd94 1992 *(dst + 1) = s->vga.gr[0x10];
e6e5ad80
FB		 1993 }
1994 val <<= 1;
1995 }
fd4aa979 1996 memory_region_set_dirty(&s->vga.vram, offset, 16);
e6e5ad80
FB		 1997}
1998
1999/***************************************
2000 *
2001 * memory access between 0xa0000-0xbffff
2002 *
2003 ***************************************/
2004
a815b166 2005static uint64_t cirrus_vga_mem_read(void *opaque,
a8170e5e 2006 hwaddr addr,
a815b166 2007 uint32_t size)
e6e5ad80
FB		 2008{
2009 CirrusVGAState *s = opaque;
2010 unsigned bank_index;
2011 unsigned bank_offset;
2012 uint32_t val;
2013
4e12cd94 2014 if ((s->vga.sr[0x07] & 0x01) == 0) {
b2a5e761 2015 return vga_mem_readb(&s->vga, addr);
e6e5ad80
FB		 2016 }
2017
2018 if (addr < 0x10000) {
2019 /* XXX handle bitblt */
2020 /* video memory */
2021 bank_index = addr >> 15;
2022 bank_offset = addr & 0x7fff;
2023 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2024 bank_offset += s->cirrus_bank_base[bank_index];
4e12cd94 2025 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2026 bank_offset <<= 4;
4e12cd94 2027 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2028 bank_offset <<= 3;
2029 }
2030 bank_offset &= s->cirrus_addr_mask;
4e12cd94 2031 val = *(s->vga.vram_ptr + bank_offset);
e6e5ad80
FB		 2032 } else
2033 val = 0xff;
2034 } else if (addr >= 0x18000 && addr < 0x18100) {
2035 /* memory-mapped I/O */
2036 val = 0xff;
4e12cd94 2037 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
e6e5ad80
FB		 2038 val = cirrus_mmio_blt_read(s, addr & 0xff);
2039 }
2040 } else {
2041 val = 0xff;
2b55f4d3
PMD		 2042 qemu_log_mask(LOG_GUEST_ERROR,
2043 "cirrus: mem_readb 0x" TARGET_FMT_plx "\n", addr);
e6e5ad80
FB		 2044 }
2045 return val;
2046}
2047
a815b166 2048static void cirrus_vga_mem_write(void *opaque,
a8170e5e 2049 hwaddr addr,
a815b166
AK		 2050 uint64_t mem_value,
2051 uint32_t size)
e6e5ad80
FB		 2052{
2053 CirrusVGAState *s = opaque;
2054 unsigned bank_index;
2055 unsigned bank_offset;
2056 unsigned mode;
2057
4e12cd94 2058 if ((s->vga.sr[0x07] & 0x01) == 0) {
b2a5e761 2059 vga_mem_writeb(&s->vga, addr, mem_value);
e6e5ad80
FB		 2060 return;
2061 }
2062
2063 if (addr < 0x10000) {
2064 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2065 /* bitblt */
2066 *s->cirrus_srcptr++ = (uint8_t) mem_value;
a5082316 2067 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 2068 cirrus_bitblt_cputovideo_next(s);
2069 }
2070 } else {
2071 /* video memory */
2072 bank_index = addr >> 15;
2073 bank_offset = addr & 0x7fff;
2074 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2075 bank_offset += s->cirrus_bank_base[bank_index];
4e12cd94 2076 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2077 bank_offset <<= 4;
4e12cd94 2078 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2079 bank_offset <<= 3;
2080 }
2081 bank_offset &= s->cirrus_addr_mask;
4e12cd94
AK		 2082 mode = s->vga.gr[0x05] & 0x7;
2083 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2084 *(s->vga.vram_ptr + bank_offset) = mem_value;
fd4aa979
BS		 2085 memory_region_set_dirty(&s->vga.vram, bank_offset,
2086 sizeof(mem_value));
e6e5ad80 2087 } else {
4e12cd94 2088 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
e6e5ad80
FB		 2089 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2090 bank_offset,
2091 mem_value);
2092 } else {
2093 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2094 bank_offset,
2095 mem_value);
2096 }
2097 }
2098 }
2099 }
2100 } else if (addr >= 0x18000 && addr < 0x18100) {
2101 /* memory-mapped I/O */
4e12cd94 2102 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
e6e5ad80
FB		 2103 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2104 }
2105 } else {
2b55f4d3
PMD		 2106 qemu_log_mask(LOG_GUEST_ERROR,
2107 "cirrus: mem_writeb 0x" TARGET_FMT_plx " "
e016a844 2108 "value 0x%02" PRIx64 "\n", addr, mem_value);
e6e5ad80
FB		 2109 }
2110}
2111
b1950430
AK		 2112static const MemoryRegionOps cirrus_vga_mem_ops = {
2113 .read = cirrus_vga_mem_read,
2114 .write = cirrus_vga_mem_write,
2115 .endianness = DEVICE_LITTLE_ENDIAN,
a815b166
AK		 2116 .impl = {
2117 .min_access_size = 1,
2118 .max_access_size = 1,
2119 },
e6e5ad80
FB		 2120};
2121
a5082316
FB		 2122/***************************************
2123 *
2124 * hardware cursor
2125 *
2126 ***************************************/
2127
2128static inline void invalidate_cursor1(CirrusVGAState *s)
2129{
2130 if (s->last_hw_cursor_size) {
4e12cd94 2131 vga_invalidate_scanlines(&s->vga,
a5082316
FB		 2132 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2133 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2134 }
2135}
2136
2137static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2138{
2139 const uint8_t *src;
2140 uint32_t content;
2141 int y, y_min, y_max;
2142
f0353b0d 2143 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
4e12cd94
AK		 2144 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2145 src += (s->vga.sr[0x13] & 0x3c) * 256;
a5082316
FB		 2146 y_min = 64;
2147 y_max = -1;
2148 for(y = 0; y < 64; y++) {
2149 content = ((uint32_t *)src)[0] |
2150 ((uint32_t *)src)[1] |
2151 ((uint32_t *)src)[2] |
2152 ((uint32_t *)src)[3];
2153 if (content) {
2154 if (y < y_min)
2155 y_min = y;
2156 if (y > y_max)
2157 y_max = y;
2158 }
2159 src += 16;
2160 }
2161 } else {
4e12cd94 2162 src += (s->vga.sr[0x13] & 0x3f) * 256;
a5082316
FB		 2163 y_min = 32;
2164 y_max = -1;
2165 for(y = 0; y < 32; y++) {
2166 content = ((uint32_t *)src)[0] |
2167 ((uint32_t *)(src + 128))[0];
2168 if (content) {
2169 if (y < y_min)
2170 y_min = y;
2171 if (y > y_max)
2172 y_max = y;
2173 }
2174 src += 4;
2175 }
2176 }
2177 if (y_min > y_max) {
2178 s->last_hw_cursor_y_start = 0;
2179 s->last_hw_cursor_y_end = 0;
2180 } else {
2181 s->last_hw_cursor_y_start = y_min;
2182 s->last_hw_cursor_y_end = y_max + 1;
2183 }
2184}
2185
2186/* NOTE: we do not currently handle the cursor bitmap change, so we
2187 update the cursor only if it moves. */
a4a2f59c 2188static void cirrus_cursor_invalidate(VGACommonState *s1)
a5082316 2189{
4e12cd94 2190 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
a5082316
FB		 2191 int size;
2192
4e12cd94 2193 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
a5082316
FB		 2194 size = 0;
2195 } else {
4e12cd94 2196 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
a5082316
FB		 2197 size = 64;
2198 else
2199 size = 32;
2200 }
2201 /* invalidate last cursor and new cursor if any change */
2202 if (s->last_hw_cursor_size != size ||
22382bb9
GH		 2203 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2204 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
a5082316
FB		 2205
2206 invalidate_cursor1(s);
3b46e624 2207
a5082316 2208 s->last_hw_cursor_size = size;
22382bb9
GH		 2209 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2210 s->last_hw_cursor_y = s->vga.hw_cursor_y;
a5082316
FB		 2211 /* compute the real cursor min and max y */
2212 cirrus_cursor_compute_yrange(s);
2213 invalidate_cursor1(s);
2214 }
2215}
2216
70a041fe
BH		 2217static void vga_draw_cursor_line(uint8_t *d1,
2218 const uint8_t *src1,
2219 int poffset, int w,
2220 unsigned int color0,
2221 unsigned int color1,
2222 unsigned int color_xor)
2223{
2224 const uint8_t *plane0, *plane1;
2225 int x, b0, b1;
2226 uint8_t *d;
2227
2228 d = d1;
2229 plane0 = src1;
2230 plane1 = src1 + poffset;
2231 for (x = 0; x < w; x++) {
2232 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2233 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2234 switch (b0 | (b1 << 1)) {
2235 case 0:
2236 break;
2237 case 1:
2238 ((uint32_t *)d)[0] ^= color_xor;
2239 break;
2240 case 2:
2241 ((uint32_t *)d)[0] = color0;
2242 break;
2243 case 3:
2244 ((uint32_t *)d)[0] = color1;
2245 break;
2246 }
2247 d += 4;
2248 }
2249}
94d7b483 2250
a4a2f59c 2251static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
a5082316 2252{
4e12cd94 2253 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
70a041fe 2254 int w, h, x1, x2, poffset;
a5082316
FB		 2255 unsigned int color0, color1;
2256 const uint8_t *palette, *src;
2257 uint32_t content;
3b46e624 2258
4e12cd94 2259 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
a5082316
FB		 2260 return;
2261 /* fast test to see if the cursor intersects with the scan line */
4e12cd94 2262 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
a5082316
FB		 2263 h = 64;
2264 } else {
2265 h = 32;
2266 }
22382bb9
GH		 2267 if (scr_y < s->vga.hw_cursor_y ||
2268 scr_y >= (s->vga.hw_cursor_y + h)) {
a5082316 2269 return;
22382bb9 2270 }
3b46e624 2271
f0353b0d 2272 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
4e12cd94
AK		 2273 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2274 src += (s->vga.sr[0x13] & 0x3c) * 256;
22382bb9 2275 src += (scr_y - s->vga.hw_cursor_y) * 16;
a5082316
FB		 2276 poffset = 8;
2277 content = ((uint32_t *)src)[0] |
2278 ((uint32_t *)src)[1] |
2279 ((uint32_t *)src)[2] |
2280 ((uint32_t *)src)[3];
2281 } else {
4e12cd94 2282 src += (s->vga.sr[0x13] & 0x3f) * 256;
22382bb9 2283 src += (scr_y - s->vga.hw_cursor_y) * 4;
d3c2343a
BH		 2284
2285
a5082316
FB		 2286 poffset = 128;
2287 content = ((uint32_t *)src)[0] |
2288 ((uint32_t *)(src + 128))[0];
2289 }
2290 /* if nothing to draw, no need to continue */
2291 if (!content)
2292 return;
2293 w = h;
2294
22382bb9 2295 x1 = s->vga.hw_cursor_x;
4e12cd94 2296 if (x1 >= s->vga.last_scr_width)
a5082316 2297 return;
22382bb9 2298 x2 = s->vga.hw_cursor_x + w;
4e12cd94
AK		 2299 if (x2 > s->vga.last_scr_width)
2300 x2 = s->vga.last_scr_width;
a5082316
FB		 2301 w = x2 - x1;
2302 palette = s->cirrus_hidden_palette;
d3c2343a
BH		 2303 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2304 c6_to_8(palette[0x0 * 3 + 1]),
2305 c6_to_8(palette[0x0 * 3 + 2]));
2306 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2307 c6_to_8(palette[0xf * 3 + 1]),
2308 c6_to_8(palette[0xf * 3 + 2]));
70a041fe
BH		 2309 d1 += x1 * 4;
2310 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
a5082316
FB		 2311}
2312
e6e5ad80
FB		 2313/***************************************
2314 *
2315 * LFB memory access
2316 *
2317 ***************************************/
2318
a8170e5e 2319static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
899adf81 2320 unsigned size)
e6e5ad80 2321{
e05587e8 2322 CirrusVGAState *s = opaque;
e6e5ad80
FB		 2323 uint32_t ret;
2324
e6e5ad80
FB		 2325 addr &= s->cirrus_addr_mask;
2326
4e12cd94 2327 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
78e127ef 2328 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2329 /* memory-mapped I/O */
2330 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2331 } else if (0) {
2332 /* XXX handle bitblt */
2333 ret = 0xff;
2334 } else {
2335 /* video memory */
4e12cd94 2336 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2337 addr <<= 4;
4e12cd94 2338 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2339 addr <<= 3;
2340 }
2341 addr &= s->cirrus_addr_mask;
4e12cd94 2342 ret = *(s->vga.vram_ptr + addr);
e6e5ad80
FB		 2343 }
2344
2345 return ret;
2346}
2347
a8170e5e 2348static void cirrus_linear_write(void *opaque, hwaddr addr,
899adf81 2349 uint64_t val, unsigned size)
e6e5ad80 2350{
e05587e8 2351 CirrusVGAState *s = opaque;
e6e5ad80
FB		 2352 unsigned mode;
2353
2354 addr &= s->cirrus_addr_mask;
3b46e624 2355
4e12cd94 2356 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
78e127ef 2357 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2358 /* memory-mapped I/O */
2359 cirrus_mmio_blt_write(s, addr & 0xff, val);
2360 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2361 /* bitblt */
2362 *s->cirrus_srcptr++ = (uint8_t) val;
a5082316 2363 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 2364 cirrus_bitblt_cputovideo_next(s);
2365 }
2366 } else {
2367 /* video memory */
4e12cd94 2368 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
e6e5ad80 2369 addr <<= 4;
4e12cd94 2370 } else if (s->vga.gr[0x0B] & 0x02) {
e6e5ad80
FB		 2371 addr <<= 3;
2372 }
2373 addr &= s->cirrus_addr_mask;
2374
4e12cd94
AK		 2375 mode = s->vga.gr[0x05] & 0x7;
2376 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2377 *(s->vga.vram_ptr + addr) = (uint8_t) val;
fd4aa979 2378 memory_region_set_dirty(&s->vga.vram, addr, 1);
e6e5ad80 2379 } else {
4e12cd94 2380 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
e6e5ad80
FB		 2381 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2382 } else {
2383 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2384 }
2385 }
2386 }
2387}
2388
a5082316
FB		 2389/***************************************
2390 *
2391 * system to screen memory access
2392 *
2393 ***************************************/
2394
2395
4e56f089 2396static uint64_t cirrus_linear_bitblt_read(void *opaque,
a8170e5e 2397 hwaddr addr,
4e56f089 2398 unsigned size)
a5082316 2399{
4e56f089 2400 CirrusVGAState *s = opaque;
a5082316
FB		 2401
2402 /* XXX handle bitblt */
4e56f089 2403 (void)s;
bb6e9e94
PMD		 2404 qemu_log_mask(LOG_UNIMP,
2405 "cirrus: linear bitblt is not implemented\n");
2406
b3ac2b94 2407 return 0xff;
a5082316
FB		 2408}
2409
4e56f089 2410static void cirrus_linear_bitblt_write(void *opaque,
a8170e5e 2411 hwaddr addr,
4e56f089
AK		 2412 uint64_t val,
2413 unsigned size)
a5082316 2414{
e05587e8 2415 CirrusVGAState *s = opaque;
a5082316
FB		 2416
2417 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2418 /* bitblt */
2419 *s->cirrus_srcptr++ = (uint8_t) val;
2420 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2421 cirrus_bitblt_cputovideo_next(s);
2422 }
2423 }
2424}
2425
b1950430
AK		 2426static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2427 .read = cirrus_linear_bitblt_read,
2428 .write = cirrus_linear_bitblt_write,
2429 .endianness = DEVICE_LITTLE_ENDIAN,
4e56f089
AK		 2430 .impl = {
2431 .min_access_size = 1,
2432 .max_access_size = 1,
2433 },
a5082316
FB		 2434};
2435
b1950430
AK		 2436static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2437{
7969d9ed
AK		 2438 MemoryRegion *mr = &s->cirrus_bank[bank];
2439 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
4e12cd94
AK		 2440 && !((s->vga.sr[0x07] & 0x01) == 0)
2441 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
7969d9ed
AK		 2442 && !(s->vga.gr[0x0B] & 0x02);
2443
2444 memory_region_set_enabled(mr, enabled);
2445 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
b1950430 2446}
2bec46dc 2447
b1950430
AK		 2448static void map_linear_vram(CirrusVGAState *s)
2449{
4c08fd1e 2450 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
b1950430
AK		 2451 s->linear_vram = true;
2452 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2453 }
2454 map_linear_vram_bank(s, 0);
2455 map_linear_vram_bank(s, 1);
2bec46dc
AL		 2456}
2457
2458static void unmap_linear_vram(CirrusVGAState *s)
2459{
4c08fd1e 2460 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
b1950430
AK		 2461 s->linear_vram = false;
2462 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
4516e45f 2463 }
7969d9ed
AK		 2464 memory_region_set_enabled(&s->cirrus_bank[0], false);
2465 memory_region_set_enabled(&s->cirrus_bank[1], false);
2bec46dc
AL		 2466}
2467
8926b517
FB		 2468/* Compute the memory access functions */
2469static void cirrus_update_memory_access(CirrusVGAState *s)
2470{
2471 unsigned mode;
2472
64c048f4 2473 memory_region_transaction_begin();
4e12cd94 2474 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
8926b517
FB		 2475 goto generic_io;
2476 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2477 goto generic_io;
2478 } else {
4e12cd94 2479 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
8926b517 2480 goto generic_io;
4e12cd94 2481 } else if (s->vga.gr[0x0B] & 0x02) {
8926b517
FB		 2482 goto generic_io;
2483 }
3b46e624 2484
4e12cd94
AK		 2485 mode = s->vga.gr[0x05] & 0x7;
2486 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2bec46dc 2487 map_linear_vram(s);
8926b517
FB		 2488 } else {
2489 generic_io:
2bec46dc 2490 unmap_linear_vram(s);
8926b517
FB		 2491 }
2492 }
64c048f4 2493 memory_region_transaction_commit();
8926b517
FB		 2494}
2495
2496
e6e5ad80
FB		 2497/* I/O ports */
2498
c75e6d8e
JG		 2499static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2500 unsigned size)
e6e5ad80 2501{
b6343073
JQ		 2502 CirrusVGAState *c = opaque;
2503 VGACommonState *s = &c->vga;
e6e5ad80
FB		 2504 int val, index;
2505
c75e6d8e 2506 addr += 0x3b0;
bd8f2f5d 2507
b6343073 2508 if (vga_ioport_invalid(s, addr)) {
e6e5ad80
FB		 2509 val = 0xff;
2510 } else {
2511 switch (addr) {
2512 case 0x3c0:
b6343073
JQ		 2513 if (s->ar_flip_flop == 0) {
2514 val = s->ar_index;
e6e5ad80
FB		 2515 } else {
2516 val = 0;
2517 }
2518 break;
2519 case 0x3c1:
b6343073 2520 index = s->ar_index & 0x1f;
e6e5ad80 2521 if (index < 21)
b6343073 2522 val = s->ar[index];
e6e5ad80
FB		 2523 else
2524 val = 0;
2525 break;
2526 case 0x3c2:
b6343073 2527 val = s->st00;
e6e5ad80
FB		 2528 break;
2529 case 0x3c4:
b6343073 2530 val = s->sr_index;
e6e5ad80
FB		 2531 break;
2532 case 0x3c5:
8a82c322
JQ		 2533 val = cirrus_vga_read_sr(c);
2534 break;
e6e5ad80
FB		 2535 break;
2536 case 0x3c6:
957c9db5 2537 val = cirrus_read_hidden_dac(c);
e6e5ad80
FB		 2538 break;
2539 case 0x3c7:
b6343073 2540 val = s->dac_state;
e6e5ad80 2541 break;
ae184e4a 2542 case 0x3c8:
b6343073
JQ		 2543 val = s->dac_write_index;
2544 c->cirrus_hidden_dac_lockindex = 0;
ae184e4a
FB		 2545 break;
2546 case 0x3c9:
5deaeee3
JQ		 2547 val = cirrus_vga_read_palette(c);
2548 break;
e6e5ad80 2549 case 0x3ca:
b6343073 2550 val = s->fcr;
e6e5ad80
FB		 2551 break;
2552 case 0x3cc:
b6343073 2553 val = s->msr;
e6e5ad80
FB		 2554 break;
2555 case 0x3ce:
b6343073 2556 val = s->gr_index;
e6e5ad80
FB		 2557 break;
2558 case 0x3cf:
f705db9d 2559 val = cirrus_vga_read_gr(c, s->gr_index);
e6e5ad80
FB		 2560 break;
2561 case 0x3b4:
2562 case 0x3d4:
b6343073 2563 val = s->cr_index;
e6e5ad80
FB		 2564 break;
2565 case 0x3b5:
2566 case 0x3d5:
b863d514 2567 val = cirrus_vga_read_cr(c, s->cr_index);
e6e5ad80
FB		 2568 break;
2569 case 0x3ba:
2570 case 0x3da:
2571 /* just toggle to fool polling */
b6343073
JQ		 2572 val = s->st01 = s->retrace(s);
2573 s->ar_flip_flop = 0;
e6e5ad80
FB		 2574 break;
2575 default:
2576 val = 0x00;
2577 break;
2578 }
2579 }
ec87f206 2580 trace_vga_cirrus_read_io(addr, val);
e6e5ad80
FB		 2581 return val;
2582}
2583
c75e6d8e
JG		 2584static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2585 unsigned size)
e6e5ad80 2586{
b6343073
JQ		 2587 CirrusVGAState *c = opaque;
2588 VGACommonState *s = &c->vga;
e6e5ad80
FB		 2589 int index;
2590
c75e6d8e 2591 addr += 0x3b0;
bd8f2f5d 2592
e6e5ad80 2593 /* check port range access depending on color/monochrome mode */
b6343073 2594 if (vga_ioport_invalid(s, addr)) {
e6e5ad80 2595 return;
25a18cbd 2596 }
ec87f206 2597 trace_vga_cirrus_write_io(addr, val);
e6e5ad80
FB		 2598
2599 switch (addr) {
2600 case 0x3c0:
b6343073 2601 if (s->ar_flip_flop == 0) {
e6e5ad80 2602 val &= 0x3f;
b6343073 2603 s->ar_index = val;
e6e5ad80 2604 } else {
b6343073 2605 index = s->ar_index & 0x1f;
e6e5ad80
FB		 2606 switch (index) {
2607 case 0x00 ... 0x0f:
b6343073 2608 s->ar[index] = val & 0x3f;
e6e5ad80
FB		 2609 break;
2610 case 0x10:
b6343073 2611 s->ar[index] = val & ~0x10;
e6e5ad80
FB		 2612 break;
2613 case 0x11:
b6343073 2614 s->ar[index] = val;
e6e5ad80
FB		 2615 break;
2616 case 0x12:
b6343073 2617 s->ar[index] = val & ~0xc0;
e6e5ad80
FB		 2618 break;
2619 case 0x13:
b6343073 2620 s->ar[index] = val & ~0xf0;
e6e5ad80
FB		 2621 break;
2622 case 0x14:
b6343073 2623 s->ar[index] = val & ~0xf0;
e6e5ad80
FB		 2624 break;
2625 default:
2626 break;
2627 }
2628 }
b6343073 2629 s->ar_flip_flop ^= 1;
e6e5ad80
FB		 2630 break;
2631 case 0x3c2:
b6343073
JQ		 2632 s->msr = val & ~0x10;
2633 s->update_retrace_info(s);
e6e5ad80
FB		 2634 break;
2635 case 0x3c4:
b6343073 2636 s->sr_index = val;
e6e5ad80
FB		 2637 break;
2638 case 0x3c5:
31c63201
JQ		 2639 cirrus_vga_write_sr(c, val);
2640 break;
e6e5ad80 2641 case 0x3c6:
b6343073 2642 cirrus_write_hidden_dac(c, val);
e6e5ad80
FB		 2643 break;
2644 case 0x3c7:
b6343073
JQ		 2645 s->dac_read_index = val;
2646 s->dac_sub_index = 0;
2647 s->dac_state = 3;
e6e5ad80
FB		 2648 break;
2649 case 0x3c8:
b6343073
JQ		 2650 s->dac_write_index = val;
2651 s->dac_sub_index = 0;
2652 s->dac_state = 0;
e6e5ad80
FB		 2653 break;
2654 case 0x3c9:
86948bb1
JQ		 2655 cirrus_vga_write_palette(c, val);
2656 break;
e6e5ad80 2657 case 0x3ce:
b6343073 2658 s->gr_index = val;
e6e5ad80
FB		 2659 break;
2660 case 0x3cf:
22286bc6 2661 cirrus_vga_write_gr(c, s->gr_index, val);
e6e5ad80
FB		 2662 break;
2663 case 0x3b4:
2664 case 0x3d4:
b6343073 2665 s->cr_index = val;
e6e5ad80
FB		 2666 break;
2667 case 0x3b5:
2668 case 0x3d5:
4ec1ce04 2669 cirrus_vga_write_cr(c, val);
e6e5ad80
FB		 2670 break;
2671 case 0x3ba:
2672 case 0x3da:
b6343073 2673 s->fcr = val & 0x10;
e6e5ad80
FB		 2674 break;
2675 }
2676}
2677
e36f36e1
FB		 2678/***************************************
2679 *
2680 * memory-mapped I/O access
2681 *
2682 ***************************************/
2683
a8170e5e 2684static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
1e04d4d6 2685 unsigned size)
e36f36e1 2686{
e05587e8 2687 CirrusVGAState *s = opaque;
e36f36e1 2688
e36f36e1
FB		 2689 if (addr >= 0x100) {
2690 return cirrus_mmio_blt_read(s, addr - 0x100);
2691 } else {
c75e6d8e 2692 return cirrus_vga_ioport_read(s, addr + 0x10, size);
e36f36e1
FB		 2693 }
2694}
2695
a8170e5e 2696static void cirrus_mmio_write(void *opaque, hwaddr addr,
1e04d4d6 2697 uint64_t val, unsigned size)
e36f36e1 2698{
e05587e8 2699 CirrusVGAState *s = opaque;
e36f36e1 2700
e36f36e1
FB		 2701 if (addr >= 0x100) {
2702 cirrus_mmio_blt_write(s, addr - 0x100, val);
2703 } else {
c75e6d8e 2704 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
e36f36e1
FB		 2705 }
2706}
2707
b1950430
AK		 2708static const MemoryRegionOps cirrus_mmio_io_ops = {
2709 .read = cirrus_mmio_read,
2710 .write = cirrus_mmio_write,
2711 .endianness = DEVICE_LITTLE_ENDIAN,
1e04d4d6
AK		 2712 .impl = {
2713 .min_access_size = 1,
2714 .max_access_size = 1,
2715 },
e36f36e1
FB		 2716};
2717
2c6ab832
FB		 2718/* load/save state */
2719
e59fb374 2720static int cirrus_post_load(void *opaque, int version_id)
2c6ab832
FB		 2721{
2722 CirrusVGAState *s = opaque;
2723
4e12cd94
AK		 2724 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2725 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2c6ab832 2726
b7ee9e49
WX		 2727 cirrus_update_bank_ptr(s, 0);
2728 cirrus_update_bank_ptr(s, 1);
2bec46dc 2729 cirrus_update_memory_access(s);
2c6ab832 2730 /* force refresh */
4e12cd94 2731 s->vga.graphic_mode = -1;
b7ee9e49 2732
2c6ab832
FB		 2733 return 0;
2734}
2735
ce3cf70e 2736const VMStateDescription vmstate_cirrus_vga = {
7e72abc3
JQ		 2737 .name = "cirrus_vga",
2738 .version_id = 2,
2739 .minimum_version_id = 1,
7e72abc3 2740 .post_load = cirrus_post_load,
d49805ae 2741 .fields = (VMStateField[]) {
7e72abc3
JQ		 2742 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2743 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2744 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2745 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2746 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2747 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2748 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2749 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2750 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2751 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2752 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2753 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2754 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2755 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2756 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2757 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2758 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2759 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2760 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2761 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2762 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2763 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2764 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2765 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2766 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
22382bb9
GH		 2767 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2768 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
7e72abc3
JQ		 2769 /* XXX: we do not save the bitblt state - we assume we do not save
2770 the state when the blitter is active */
2771 VMSTATE_END_OF_LIST()
4f335feb 2772 }
7e72abc3 2773};
4f335feb 2774
7e72abc3
JQ		 2775static const VMStateDescription vmstate_pci_cirrus_vga = {
2776 .name = "cirrus_vga",
2777 .version_id = 2,
2778 .minimum_version_id = 2,
d49805ae 2779 .fields = (VMStateField[]) {
7e72abc3
JQ		 2780 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2781 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2782 vmstate_cirrus_vga, CirrusVGAState),
2783 VMSTATE_END_OF_LIST()
2784 }
2785};
4f335feb 2786
e6e5ad80
FB		 2787/***************************************
2788 *
2789 * initialize
2790 *
2791 ***************************************/
2792
4abc796d 2793static void cirrus_reset(void *opaque)
e6e5ad80 2794{
4abc796d 2795 CirrusVGAState *s = opaque;
e6e5ad80 2796
03a3e7ba 2797 vga_common_reset(&s->vga);
ee50c6bc 2798 unmap_linear_vram(s);
4e12cd94 2799 s->vga.sr[0x06] = 0x0f;
4abc796d 2800 if (s->device_id == CIRRUS_ID_CLGD5446) {
78e127ef 2801 /* 4MB 64 bit memory config, always PCI */
4e12cd94
AK		 2802 s->vga.sr[0x1F] = 0x2d; // MemClock
2803 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2804 s->vga.sr[0x0f] = 0x98;
2805 s->vga.sr[0x17] = 0x20;
2806 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
78e127ef 2807 } else {
4e12cd94
AK		 2808 s->vga.sr[0x1F] = 0x22; // MemClock
2809 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2810 s->vga.sr[0x17] = s->bustype;
2811 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
78e127ef 2812 }
4e12cd94 2813 s->vga.cr[0x27] = s->device_id;
e6e5ad80
FB		 2814
2815 s->cirrus_hidden_dac_lockindex = 5;
2816 s->cirrus_hidden_dac_data = 0;
4abc796d
BS		 2817}
2818
b1950430
AK		 2819static const MemoryRegionOps cirrus_linear_io_ops = {
2820 .read = cirrus_linear_read,
2821 .write = cirrus_linear_write,
2822 .endianness = DEVICE_LITTLE_ENDIAN,
899adf81
AK		 2823 .impl = {
2824 .min_access_size = 1,
2825 .max_access_size = 1,
2826 },
b1950430
AK		 2827};
2828
c75e6d8e
JG		 2829static const MemoryRegionOps cirrus_vga_io_ops = {
2830 .read = cirrus_vga_ioport_read,
2831 .write = cirrus_vga_ioport_write,
2832 .endianness = DEVICE_LITTLE_ENDIAN,
2833 .impl = {
2834 .min_access_size = 1,
2835 .max_access_size = 1,
2836 },
2837};
2838
ce3cf70e
TH		 2839void cirrus_init_common(CirrusVGAState *s, Object *owner,
2840 int device_id, int is_pci,
2841 MemoryRegion *system_memory, MemoryRegion *system_io)
4abc796d
BS		 2842{
2843 int i;
2844 static int inited;
2845
2846 if (!inited) {
2847 inited = 1;
2848 for(i = 0;i < 256; i++)
2849 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2850 rop_to_index[CIRRUS_ROP_0] = 0;
2851 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2852 rop_to_index[CIRRUS_ROP_NOP] = 2;
2853 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2854 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2855 rop_to_index[CIRRUS_ROP_SRC] = 5;
2856 rop_to_index[CIRRUS_ROP_1] = 6;
2857 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2858 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2859 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2860 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2861 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2862 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2863 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2864 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2865 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2866 s->device_id = device_id;
2867 if (is_pci)
2868 s->bustype = CIRRUS_BUSTYPE_PCI;
2869 else
2870 s->bustype = CIRRUS_BUSTYPE_ISA;
2871 }
2872
c75e6d8e 2873 /* Register ioport 0x3b0 - 0x3df */
9eb58a47 2874 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
c75e6d8e 2875 "cirrus-io", 0x30);
eb25a1d9 2876 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
c75e6d8e 2877 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
4abc796d 2878
9eb58a47 2879 memory_region_init(&s->low_mem_container, owner,
b1950430
AK		 2880 "cirrus-lowmem-container",
2881 0x20000);
2882
9eb58a47 2883 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
b1950430
AK		 2884 "cirrus-low-memory", 0x20000);
2885 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
7969d9ed
AK		 2886 for (i = 0; i < 2; ++i) {
2887 static const char *names[] = { "vga.bank0", "vga.bank1" };
2888 MemoryRegion *bank = &s->cirrus_bank[i];
9eb58a47
PB		 2889 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2890 0, 0x8000);
7969d9ed
AK		 2891 memory_region_set_enabled(bank, false);
2892 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2893 bank, 1);
2894 }
be20f9e9 2895 memory_region_add_subregion_overlap(system_memory,
b19c1c08 2896 0x000a0000,
b1950430
AK		 2897 &s->low_mem_container,
2898 1);
2899 memory_region_set_coalescing(&s->low_mem);
2c6ab832 2900
fefe54e3 2901 /* I/O handler for LFB */
9eb58a47 2902 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
f0353b0d 2903 "cirrus-linear-io", s->vga.vram_size_mb * MiB);
bd8f2f5d 2904 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
fefe54e3
AL		 2905
2906 /* I/O handler for LFB */
9eb58a47 2907 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
b1950430
AK		 2908 &cirrus_linear_bitblt_io_ops,
2909 s,
2910 "cirrus-bitblt-mmio",
2911 0x400000);
bd8f2f5d 2912 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
fefe54e3
AL		 2913
2914 /* I/O handler for memory-mapped I/O */
9eb58a47 2915 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
b1950430 2916 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
bd8f2f5d 2917 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
fefe54e3
AL		 2918
2919 s->real_vram_size =
f0353b0d 2920 (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB;
fefe54e3 2921
4e12cd94 2922 /* XXX: s->vga.vram_size must be a power of two */
fefe54e3
AL		 2923 s->cirrus_addr_mask = s->real_vram_size - 1;
2924 s->linear_mmio_mask = s->real_vram_size - 256;
2925
4e12cd94
AK		 2926 s->vga.get_bpp = cirrus_get_bpp;
2927 s->vga.get_offsets = cirrus_get_offsets;
2928 s->vga.get_resolution = cirrus_get_resolution;
2929 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2930 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
fefe54e3 2931
a08d4367 2932 qemu_register_reset(cirrus_reset, s);
e6e5ad80
FB		 2933}
2934
e6e5ad80
FB		 2935/***************************************
2936 *
2937 * PCI bus support
2938 *
2939 ***************************************/
2940
f409edf7 2941static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
a414c306 2942{
d338bae3 2943 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev);
a414c306 2944 CirrusVGAState *s = &d->cirrus_vga;
40021f08
AL		 2945 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2946 int16_t device_id = pc->device_id;
a414c306 2947
f61d82c2
GA		 2948 /* follow real hardware, cirrus card emulated has 4 MB video memory.
2949 Also accept 8 MB/16 MB for backward compatibility. */
2950 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
2951 s->vga.vram_size_mb != 16) {
f409edf7
MA		 2952 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
2953 s->vga.vram_size_mb);
2954 return;
f61d82c2 2955 }
a414c306 2956 /* setup VGA */
1fcfdc43 2957 vga_common_init(&s->vga, OBJECT(dev));
9eb58a47 2958 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
c75e6d8e 2959 pci_address_space_io(dev));
5643706a 2960 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
a414c306
GH		 2961
2962 /* setup PCI */
a414c306 2963
3eadad55 2964 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
b1950430
AK		 2965
2966 /* XXX: add byte swapping apertures */
2967 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2968 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2969 &s->cirrus_linear_bitblt_io);
2970
a414c306
GH		 2971 /* setup memory space */
2972 /* memory #0 LFB */
2973 /* memory #1 memory-mapped I/O */
2974 /* XXX: s->vga.vram_size must be a power of two */
e824b2cc 2975 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
a414c306 2976 if (device_id == CIRRUS_ID_CLGD5446) {
e824b2cc 2977 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
a414c306 2978 }
a414c306
GH		 2979}
2980
19403a68
MT		 2981static Property pci_vga_cirrus_properties[] = {
2982 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
73c14813 2983 cirrus_vga.vga.vram_size_mb, 4),
827bd517
GH		 2984 DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState,
2985 cirrus_vga.enable_blitter, true),
1fcfdc43
GH		 2986 DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState,
2987 cirrus_vga.vga.global_vmstate, false),
19403a68
MT		 2988 DEFINE_PROP_END_OF_LIST(),
2989};
2990
40021f08
AL		 2991static void cirrus_vga_class_init(ObjectClass *klass, void *data)
2992{
39bffca2 2993 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08
AL		 2994 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2995
f409edf7 2996 k->realize = pci_cirrus_vga_realize;
40021f08
AL		 2997 k->romfile = VGABIOS_CIRRUS_FILENAME;
2998 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
2999 k->device_id = CIRRUS_ID_CLGD5446;
3000 k->class_id = PCI_CLASS_DISPLAY_VGA;
125ee0ed 3001 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
39bffca2
AL		 3002 dc->desc = "Cirrus CLGD 54xx VGA";
3003 dc->vmsd = &vmstate_pci_cirrus_vga;
4f67d30b 3004 device_class_set_props(dc, pci_vga_cirrus_properties);
2897ae02 3005 dc->hotpluggable = false;
40021f08
AL		 3006}
3007
8c43a6f0 3008static const TypeInfo cirrus_vga_info = {
d338bae3 3009 .name = TYPE_PCI_CIRRUS_VGA,
39bffca2
AL		 3010 .parent = TYPE_PCI_DEVICE,
3011 .instance_size = sizeof(PCICirrusVGAState),
3012 .class_init = cirrus_vga_class_init,
fd3b02c8
EH		 3013 .interfaces = (InterfaceInfo[]) {
3014 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
3015 { },
3016 },
a414c306 3017};
e6e5ad80 3018
83f7d43a 3019static void cirrus_vga_register_types(void)
a414c306 3020{
39bffca2 3021 type_register_static(&cirrus_vga_info);
e6e5ad80 3022}
83f7d43a
AF		 3023
3024type_init(cirrus_vga_register_types)
Empty description
This page took 1.662407 seconds and 4 git commands to generate.