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Include hw/hw.h exactly where needed
[qemu/ar7.git] / hw / display / cirrus_vga.c
blob0f5465bc147a77d4642bfb17dbcd3b7263722d1f
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
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 */
25 /*
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
33 */
34
35 #include "qemu/osdep.h"
36 #include "qemu/module.h"
37 #include "qemu/units.h"
38 #include "sysemu/reset.h"
39 #include "qapi/error.h"
40 #include "trace.h"
41 #include "hw/pci/pci.h"
42 #include "migration/vmstate.h"
43 #include "ui/pixel_ops.h"
44 #include "cirrus_vga_internal.h"
45
46 /*
47 * TODO:
48 * - destination write mask support not complete (bits 5..7)
49 * - optimize linear mappings
50 * - optimize bitblt functions
51 */
52
53 //#define DEBUG_CIRRUS
54 //#define DEBUG_BITBLT
55
56 /***************************************
57 *
58 * definitions
59 *
60 ***************************************/
61
62 // sequencer 0x07
63 #define CIRRUS_SR7_BPP_VGA 0x00
64 #define CIRRUS_SR7_BPP_SVGA 0x01
65 #define CIRRUS_SR7_BPP_MASK 0x0e
66 #define CIRRUS_SR7_BPP_8 0x00
67 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
68 #define CIRRUS_SR7_BPP_24 0x04
69 #define CIRRUS_SR7_BPP_16 0x06
70 #define CIRRUS_SR7_BPP_32 0x08
71 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
72
73 // sequencer 0x0f
74 #define CIRRUS_MEMSIZE_512k 0x08
75 #define CIRRUS_MEMSIZE_1M 0x10
76 #define CIRRUS_MEMSIZE_2M 0x18
77 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
78
79 // sequencer 0x12
80 #define CIRRUS_CURSOR_SHOW 0x01
81 #define CIRRUS_CURSOR_HIDDENPEL 0x02
82 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
83
84 // sequencer 0x17
85 #define CIRRUS_BUSTYPE_VLBFAST 0x10
86 #define CIRRUS_BUSTYPE_PCI 0x20
87 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
88 #define CIRRUS_BUSTYPE_ISA 0x38
89 #define CIRRUS_MMIO_ENABLE 0x04
90 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
91 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
92
93 // control 0x0b
94 #define CIRRUS_BANKING_DUAL 0x01
95 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
96
97 // control 0x30
98 #define CIRRUS_BLTMODE_BACKWARDS 0x01
99 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
100 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
101 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
102 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
103 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
104 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
105 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
106 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
107 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
108 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
109
110 // control 0x31
111 #define CIRRUS_BLT_BUSY 0x01
112 #define CIRRUS_BLT_START 0x02
113 #define CIRRUS_BLT_RESET 0x04
114 #define CIRRUS_BLT_FIFOUSED 0x10
115 #define CIRRUS_BLT_AUTOSTART 0x80
116
117 // control 0x32
118 #define CIRRUS_ROP_0 0x00
119 #define CIRRUS_ROP_SRC_AND_DST 0x05
120 #define CIRRUS_ROP_NOP 0x06
121 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
122 #define CIRRUS_ROP_NOTDST 0x0b
123 #define CIRRUS_ROP_SRC 0x0d
124 #define CIRRUS_ROP_1 0x0e
125 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
126 #define CIRRUS_ROP_SRC_XOR_DST 0x59
127 #define CIRRUS_ROP_SRC_OR_DST 0x6d
128 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
129 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
130 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
131 #define CIRRUS_ROP_NOTSRC 0xd0
132 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
133 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
134
135 #define CIRRUS_ROP_NOP_INDEX 2
136 #define CIRRUS_ROP_SRC_INDEX 5
137
138 // control 0x33
139 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
140 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
141 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
142
143 // memory-mapped IO
144 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
145 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
146 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
147 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
148 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
149 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
150 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
151 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
152 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
153 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
154 #define CIRRUS_MMIO_BLTROP 0x1a // byte
155 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
156 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
157 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
158 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
159 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
160 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
161 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
162 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
166 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
167 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
168 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
169 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
170 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
171 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
172 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
173
174 #define CIRRUS_PNPMMIO_SIZE 0x1000
175
176 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
177 uint32_t dstaddr, int dst_pitch,
178 int width, int height);
179
180 typedef struct PCICirrusVGAState {
181 PCIDevice dev;
182 CirrusVGAState cirrus_vga;
183 } PCICirrusVGAState;
184
185 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
186 #define PCI_CIRRUS_VGA(obj) \
187 OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA)
188
189 static uint8_t rop_to_index[256];
190
191 /***************************************
192 *
193 * prototypes.
194 *
195 ***************************************/
196
197
198 static void cirrus_bitblt_reset(CirrusVGAState *s);
199 static void cirrus_update_memory_access(CirrusVGAState *s);
200
201 /***************************************
202 *
203 * raster operations
204 *
205 ***************************************/
206
207 static bool blit_region_is_unsafe(struct CirrusVGAState *s,
208 int32_t pitch, int32_t addr)
209 {
210 if (!pitch) {
211 return true;
212 }
213 if (pitch < 0) {
214 int64_t min = addr
215 + ((int64_t)s->cirrus_blt_height - 1) * pitch
216 - s->cirrus_blt_width;
217 if (min < -1 || addr >= s->vga.vram_size) {
218 return true;
219 }
220 } else {
221 int64_t max = addr
222 + ((int64_t)s->cirrus_blt_height-1) * pitch
223 + s->cirrus_blt_width;
224 if (max > s->vga.vram_size) {
225 return true;
226 }
227 }
228 return false;
229 }
230
231 static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only)
232 {
233 /* should be the case, see cirrus_bitblt_start */
234 assert(s->cirrus_blt_width > 0);
235 assert(s->cirrus_blt_height > 0);
236
237 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
238 return true;
239 }
240
241 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
242 s->cirrus_blt_dstaddr)) {
243 return true;
244 }
245 if (dst_only) {
246 return false;
247 }
248 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
249 s->cirrus_blt_srcaddr)) {
250 return true;
251 }
252
253 return false;
254 }
255
256 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
257 uint32_t dstaddr, uint32_t srcaddr,
258 int dstpitch,int srcpitch,
259 int bltwidth,int bltheight)
260 {
261 }
262
263 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
264 uint32_t dstaddr,
265 int dstpitch, int bltwidth,int bltheight)
266 {
267 }
268
269 static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr)
270 {
271 if (s->cirrus_srccounter) {
272 /* cputovideo */
273 return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)];
274 } else {
275 /* videotovideo */
276 return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask];
277 }
278 }
279
280 static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr)
281 {
282 uint16_t *src;
283
284 if (s->cirrus_srccounter) {
285 /* cputovideo */
286 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1];
287 } else {
288 /* videotovideo */
289 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1];
290 }
291 return *src;
292 }
293
294 static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr)
295 {
296 uint32_t *src;
297
298 if (s->cirrus_srccounter) {
299 /* cputovideo */
300 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3];
301 } else {
302 /* videotovideo */
303 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3];
304 }
305 return *src;
306 }
307
308 #define ROP_NAME 0
309 #define ROP_FN(d, s) 0
310 #include "cirrus_vga_rop.h"
311
312 #define ROP_NAME src_and_dst
313 #define ROP_FN(d, s) (s) & (d)
314 #include "cirrus_vga_rop.h"
315
316 #define ROP_NAME src_and_notdst
317 #define ROP_FN(d, s) (s) & (~(d))
318 #include "cirrus_vga_rop.h"
319
320 #define ROP_NAME notdst
321 #define ROP_FN(d, s) ~(d)
322 #include "cirrus_vga_rop.h"
323
324 #define ROP_NAME src
325 #define ROP_FN(d, s) s
326 #include "cirrus_vga_rop.h"
327
328 #define ROP_NAME 1
329 #define ROP_FN(d, s) ~0
330 #include "cirrus_vga_rop.h"
331
332 #define ROP_NAME notsrc_and_dst
333 #define ROP_FN(d, s) (~(s)) & (d)
334 #include "cirrus_vga_rop.h"
335
336 #define ROP_NAME src_xor_dst
337 #define ROP_FN(d, s) (s) ^ (d)
338 #include "cirrus_vga_rop.h"
339
340 #define ROP_NAME src_or_dst
341 #define ROP_FN(d, s) (s) | (d)
342 #include "cirrus_vga_rop.h"
343
344 #define ROP_NAME notsrc_or_notdst
345 #define ROP_FN(d, s) (~(s)) | (~(d))
346 #include "cirrus_vga_rop.h"
347
348 #define ROP_NAME src_notxor_dst
349 #define ROP_FN(d, s) ~((s) ^ (d))
350 #include "cirrus_vga_rop.h"
351
352 #define ROP_NAME src_or_notdst
353 #define ROP_FN(d, s) (s) | (~(d))
354 #include "cirrus_vga_rop.h"
355
356 #define ROP_NAME notsrc
357 #define ROP_FN(d, s) (~(s))
358 #include "cirrus_vga_rop.h"
359
360 #define ROP_NAME notsrc_or_dst
361 #define ROP_FN(d, s) (~(s)) | (d)
362 #include "cirrus_vga_rop.h"
363
364 #define ROP_NAME notsrc_and_notdst
365 #define ROP_FN(d, s) (~(s)) & (~(d))
366 #include "cirrus_vga_rop.h"
367
368 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
369 cirrus_bitblt_rop_fwd_0,
370 cirrus_bitblt_rop_fwd_src_and_dst,
371 cirrus_bitblt_rop_nop,
372 cirrus_bitblt_rop_fwd_src_and_notdst,
373 cirrus_bitblt_rop_fwd_notdst,
374 cirrus_bitblt_rop_fwd_src,
375 cirrus_bitblt_rop_fwd_1,
376 cirrus_bitblt_rop_fwd_notsrc_and_dst,
377 cirrus_bitblt_rop_fwd_src_xor_dst,
378 cirrus_bitblt_rop_fwd_src_or_dst,
379 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
380 cirrus_bitblt_rop_fwd_src_notxor_dst,
381 cirrus_bitblt_rop_fwd_src_or_notdst,
382 cirrus_bitblt_rop_fwd_notsrc,
383 cirrus_bitblt_rop_fwd_notsrc_or_dst,
384 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
385 };
386
387 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
388 cirrus_bitblt_rop_bkwd_0,
389 cirrus_bitblt_rop_bkwd_src_and_dst,
390 cirrus_bitblt_rop_nop,
391 cirrus_bitblt_rop_bkwd_src_and_notdst,
392 cirrus_bitblt_rop_bkwd_notdst,
393 cirrus_bitblt_rop_bkwd_src,
394 cirrus_bitblt_rop_bkwd_1,
395 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
396 cirrus_bitblt_rop_bkwd_src_xor_dst,
397 cirrus_bitblt_rop_bkwd_src_or_dst,
398 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
399 cirrus_bitblt_rop_bkwd_src_notxor_dst,
400 cirrus_bitblt_rop_bkwd_src_or_notdst,
401 cirrus_bitblt_rop_bkwd_notsrc,
402 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
403 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
404 };
405
406 #define TRANSP_ROP(name) {\
407 name ## _8,\
408 name ## _16,\
409 }
410 #define TRANSP_NOP(func) {\
411 func,\
412 func,\
413 }
414
415 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
416 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
417 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
418 TRANSP_NOP(cirrus_bitblt_rop_nop),
419 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
420 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
421 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
422 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
423 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
424 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
426 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
427 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
432 };
433
434 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
435 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
436 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
437 TRANSP_NOP(cirrus_bitblt_rop_nop),
438 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
439 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
440 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
441 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
442 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
443 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
446 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
451 };
452
453 #define ROP2(name) {\
454 name ## _8,\
455 name ## _16,\
456 name ## _24,\
457 name ## _32,\
458 }
459
460 #define ROP_NOP2(func) {\
461 func,\
462 func,\
463 func,\
464 func,\
465 }
466
467 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
468 ROP2(cirrus_patternfill_0),
469 ROP2(cirrus_patternfill_src_and_dst),
470 ROP_NOP2(cirrus_bitblt_rop_nop),
471 ROP2(cirrus_patternfill_src_and_notdst),
472 ROP2(cirrus_patternfill_notdst),
473 ROP2(cirrus_patternfill_src),
474 ROP2(cirrus_patternfill_1),
475 ROP2(cirrus_patternfill_notsrc_and_dst),
476 ROP2(cirrus_patternfill_src_xor_dst),
477 ROP2(cirrus_patternfill_src_or_dst),
478 ROP2(cirrus_patternfill_notsrc_or_notdst),
479 ROP2(cirrus_patternfill_src_notxor_dst),
480 ROP2(cirrus_patternfill_src_or_notdst),
481 ROP2(cirrus_patternfill_notsrc),
482 ROP2(cirrus_patternfill_notsrc_or_dst),
483 ROP2(cirrus_patternfill_notsrc_and_notdst),
484 };
485
486 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
487 ROP2(cirrus_colorexpand_transp_0),
488 ROP2(cirrus_colorexpand_transp_src_and_dst),
489 ROP_NOP2(cirrus_bitblt_rop_nop),
490 ROP2(cirrus_colorexpand_transp_src_and_notdst),
491 ROP2(cirrus_colorexpand_transp_notdst),
492 ROP2(cirrus_colorexpand_transp_src),
493 ROP2(cirrus_colorexpand_transp_1),
494 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
495 ROP2(cirrus_colorexpand_transp_src_xor_dst),
496 ROP2(cirrus_colorexpand_transp_src_or_dst),
497 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
498 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
499 ROP2(cirrus_colorexpand_transp_src_or_notdst),
500 ROP2(cirrus_colorexpand_transp_notsrc),
501 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
502 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
503 };
504
505 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
506 ROP2(cirrus_colorexpand_0),
507 ROP2(cirrus_colorexpand_src_and_dst),
508 ROP_NOP2(cirrus_bitblt_rop_nop),
509 ROP2(cirrus_colorexpand_src_and_notdst),
510 ROP2(cirrus_colorexpand_notdst),
511 ROP2(cirrus_colorexpand_src),
512 ROP2(cirrus_colorexpand_1),
513 ROP2(cirrus_colorexpand_notsrc_and_dst),
514 ROP2(cirrus_colorexpand_src_xor_dst),
515 ROP2(cirrus_colorexpand_src_or_dst),
516 ROP2(cirrus_colorexpand_notsrc_or_notdst),
517 ROP2(cirrus_colorexpand_src_notxor_dst),
518 ROP2(cirrus_colorexpand_src_or_notdst),
519 ROP2(cirrus_colorexpand_notsrc),
520 ROP2(cirrus_colorexpand_notsrc_or_dst),
521 ROP2(cirrus_colorexpand_notsrc_and_notdst),
522 };
523
524 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
525 ROP2(cirrus_colorexpand_pattern_transp_0),
526 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
527 ROP_NOP2(cirrus_bitblt_rop_nop),
528 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
529 ROP2(cirrus_colorexpand_pattern_transp_notdst),
530 ROP2(cirrus_colorexpand_pattern_transp_src),
531 ROP2(cirrus_colorexpand_pattern_transp_1),
532 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
533 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
534 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
535 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
536 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
537 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
538 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
539 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
540 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
541 };
542
543 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
544 ROP2(cirrus_colorexpand_pattern_0),
545 ROP2(cirrus_colorexpand_pattern_src_and_dst),
546 ROP_NOP2(cirrus_bitblt_rop_nop),
547 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
548 ROP2(cirrus_colorexpand_pattern_notdst),
549 ROP2(cirrus_colorexpand_pattern_src),
550 ROP2(cirrus_colorexpand_pattern_1),
551 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
552 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
553 ROP2(cirrus_colorexpand_pattern_src_or_dst),
554 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
555 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
556 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
557 ROP2(cirrus_colorexpand_pattern_notsrc),
558 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
559 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
560 };
561
562 static const cirrus_fill_t cirrus_fill[16][4] = {
563 ROP2(cirrus_fill_0),
564 ROP2(cirrus_fill_src_and_dst),
565 ROP_NOP2(cirrus_bitblt_fill_nop),
566 ROP2(cirrus_fill_src_and_notdst),
567 ROP2(cirrus_fill_notdst),
568 ROP2(cirrus_fill_src),
569 ROP2(cirrus_fill_1),
570 ROP2(cirrus_fill_notsrc_and_dst),
571 ROP2(cirrus_fill_src_xor_dst),
572 ROP2(cirrus_fill_src_or_dst),
573 ROP2(cirrus_fill_notsrc_or_notdst),
574 ROP2(cirrus_fill_src_notxor_dst),
575 ROP2(cirrus_fill_src_or_notdst),
576 ROP2(cirrus_fill_notsrc),
577 ROP2(cirrus_fill_notsrc_or_dst),
578 ROP2(cirrus_fill_notsrc_and_notdst),
579 };
580
581 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
582 {
583 unsigned int color;
584 switch (s->cirrus_blt_pixelwidth) {
585 case 1:
586 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
587 break;
588 case 2:
589 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
590 s->cirrus_blt_fgcol = le16_to_cpu(color);
591 break;
592 case 3:
593 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
594 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
595 break;
596 default:
597 case 4:
598 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
599 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
600 s->cirrus_blt_fgcol = le32_to_cpu(color);
601 break;
602 }
603 }
604
605 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
606 {
607 unsigned int color;
608 switch (s->cirrus_blt_pixelwidth) {
609 case 1:
610 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
611 break;
612 case 2:
613 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
614 s->cirrus_blt_bgcol = le16_to_cpu(color);
615 break;
616 case 3:
617 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
618 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
619 break;
620 default:
621 case 4:
622 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
623 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
624 s->cirrus_blt_bgcol = le32_to_cpu(color);
625 break;
626 }
627 }
628
629 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
630 int off_pitch, int bytesperline,
631 int lines)
632 {
633 int y;
634 int off_cur;
635 int off_cur_end;
636
637 if (off_pitch < 0) {
638 off_begin -= bytesperline - 1;
639 }
640
641 for (y = 0; y < lines; y++) {
642 off_cur = off_begin;
643 off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1;
644 assert(off_cur_end >= off_cur);
645 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
646 off_begin += off_pitch;
647 }
648 }
649
650 static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s)
651 {
652 uint32_t patternsize;
653 bool videosrc = !s->cirrus_srccounter;
654
655 if (videosrc) {
656 switch (s->vga.get_bpp(&s->vga)) {
657 case 8:
658 patternsize = 64;
659 break;
660 case 15:
661 case 16:
662 patternsize = 128;
663 break;
664 case 24:
665 case 32:
666 default:
667 patternsize = 256;
668 break;
669 }
670 s->cirrus_blt_srcaddr &= ~(patternsize - 1);
671 if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) {
672 return 0;
673 }
674 }
675
676 if (blit_is_unsafe(s, true)) {
677 return 0;
678 }
679
680 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
681 videosrc ? s->cirrus_blt_srcaddr : 0,
682 s->cirrus_blt_dstpitch, 0,
683 s->cirrus_blt_width, s->cirrus_blt_height);
684 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
685 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
686 s->cirrus_blt_height);
687 return 1;
688 }
689
690 /* fill */
691
692 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
693 {
694 cirrus_fill_t rop_func;
695
696 if (blit_is_unsafe(s, true)) {
697 return 0;
698 }
699 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
700 rop_func(s, s->cirrus_blt_dstaddr,
701 s->cirrus_blt_dstpitch,
702 s->cirrus_blt_width, s->cirrus_blt_height);
703 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
704 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
705 s->cirrus_blt_height);
706 cirrus_bitblt_reset(s);
707 return 1;
708 }
709
710 /***************************************
711 *
712 * bitblt (video-to-video)
713 *
714 ***************************************/
715
716 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
717 {
718 return cirrus_bitblt_common_patterncopy(s);
719 }
720
721 static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
722 {
723 int sx = 0, sy = 0;
724 int dx = 0, dy = 0;
725 int depth = 0;
726 int notify = 0;
727
728 /* make sure to only copy if it's a plain copy ROP */
729 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
730 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
731
732 int width, height;
733
734 depth = s->vga.get_bpp(&s->vga) / 8;
735 if (!depth) {
736 return 0;
737 }
738 s->vga.get_resolution(&s->vga, &width, &height);
739
740 /* extra x, y */
741 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
742 sy = (src / ABS(s->cirrus_blt_srcpitch));
743 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
744 dy = (dst / ABS(s->cirrus_blt_dstpitch));
745
746 /* normalize width */
747 w /= depth;
748
749 /* if we're doing a backward copy, we have to adjust
750 our x/y to be the upper left corner (instead of the lower
751 right corner) */
752 if (s->cirrus_blt_dstpitch < 0) {
753 sx -= (s->cirrus_blt_width / depth) - 1;
754 dx -= (s->cirrus_blt_width / depth) - 1;
755 sy -= s->cirrus_blt_height - 1;
756 dy -= s->cirrus_blt_height - 1;
757 }
758
759 /* are we in the visible portion of memory? */
760 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
761 (sx + w) <= width && (sy + h) <= height &&
762 (dx + w) <= width && (dy + h) <= height) {
763 notify = 1;
764 }
765 }
766
767 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
768 s->cirrus_blt_srcaddr,
769 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
770 s->cirrus_blt_width, s->cirrus_blt_height);
771
772 if (notify) {
773 dpy_gfx_update(s->vga.con, dx, dy,
774 s->cirrus_blt_width / depth,
775 s->cirrus_blt_height);
776 }
777
778 /* we don't have to notify the display that this portion has
779 changed since qemu_console_copy implies this */
780
781 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
782 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
783 s->cirrus_blt_height);
784
785 return 1;
786 }
787
788 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
789 {
790 if (blit_is_unsafe(s, false))
791 return 0;
792
793 return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
794 s->cirrus_blt_srcaddr - s->vga.start_addr,
795 s->cirrus_blt_width, s->cirrus_blt_height);
796 }
797
798 /***************************************
799 *
800 * bitblt (cpu-to-video)
801 *
802 ***************************************/
803
804 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
805 {
806 int copy_count;
807 uint8_t *end_ptr;
808
809 if (s->cirrus_srccounter > 0) {
810 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
811 cirrus_bitblt_common_patterncopy(s);
812 the_end:
813 s->cirrus_srccounter = 0;
814 cirrus_bitblt_reset(s);
815 } else {
816 /* at least one scan line */
817 do {
818 (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr,
819 0, 0, 0, s->cirrus_blt_width, 1);
820 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
821 s->cirrus_blt_width, 1);
822 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
823 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
824 if (s->cirrus_srccounter <= 0)
825 goto the_end;
826 /* more bytes than needed can be transferred because of
827 word alignment, so we keep them for the next line */
828 /* XXX: keep alignment to speed up transfer */
829 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
830 copy_count = s->cirrus_srcptr_end - end_ptr;
831 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
832 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
833 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
834 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
835 }
836 }
837 }
838
839 /***************************************
840 *
841 * bitblt wrapper
842 *
843 ***************************************/
844
845 static void cirrus_bitblt_reset(CirrusVGAState * s)
846 {
847 int need_update;
848
849 s->vga.gr[0x31] &=
850 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
851 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
852 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
853 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
854 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
855 s->cirrus_srccounter = 0;
856 if (!need_update)
857 return;
858 cirrus_update_memory_access(s);
859 }
860
861 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
862 {
863 int w;
864
865 if (blit_is_unsafe(s, true)) {
866 return 0;
867 }
868
869 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
870 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
871 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
872
873 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
874 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
875 s->cirrus_blt_srcpitch = 8;
876 } else {
877 /* XXX: check for 24 bpp */
878 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
879 }
880 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
881 } else {
882 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
883 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
884 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
885 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
886 else
887 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
888 } else {
889 /* always align input size to 32 bits */
890 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
891 }
892 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
893 }
894
895 /* the blit_is_unsafe call above should catch this */
896 assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE);
897
898 s->cirrus_srcptr = s->cirrus_bltbuf;
899 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
900 cirrus_update_memory_access(s);
901 return 1;
902 }
903
904 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
905 {
906 /* XXX */
907 #ifdef DEBUG_BITBLT
908 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
909 #endif
910 return 0;
911 }
912
913 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
914 {
915 int ret;
916
917 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
918 ret = cirrus_bitblt_videotovideo_patterncopy(s);
919 } else {
920 ret = cirrus_bitblt_videotovideo_copy(s);
921 }
922 if (ret)
923 cirrus_bitblt_reset(s);
924 return ret;
925 }
926
927 static void cirrus_bitblt_start(CirrusVGAState * s)
928 {
929 uint8_t blt_rop;
930
931 if (!s->enable_blitter) {
932 goto bitblt_ignore;
933 }
934
935 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
936
937 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
938 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
939 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
940 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
941 s->cirrus_blt_dstaddr =
942 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
943 s->cirrus_blt_srcaddr =
944 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
945 s->cirrus_blt_mode = s->vga.gr[0x30];
946 s->cirrus_blt_modeext = s->vga.gr[0x33];
947 blt_rop = s->vga.gr[0x32];
948
949 s->cirrus_blt_dstaddr &= s->cirrus_addr_mask;
950 s->cirrus_blt_srcaddr &= s->cirrus_addr_mask;
951
952 #ifdef DEBUG_BITBLT
953 printf("rop=0x%02x mode=0x%02x modeext=0x%02x w=%d h=%d dpitch=%d spitch=%d daddr=0x%08x saddr=0x%08x writemask=0x%02x\n",
954 blt_rop,
955 s->cirrus_blt_mode,
956 s->cirrus_blt_modeext,
957 s->cirrus_blt_width,
958 s->cirrus_blt_height,
959 s->cirrus_blt_dstpitch,
960 s->cirrus_blt_srcpitch,
961 s->cirrus_blt_dstaddr,
962 s->cirrus_blt_srcaddr,
963 s->vga.gr[0x2f]);
964 #endif
965
966 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
967 case CIRRUS_BLTMODE_PIXELWIDTH8:
968 s->cirrus_blt_pixelwidth = 1;
969 break;
970 case CIRRUS_BLTMODE_PIXELWIDTH16:
971 s->cirrus_blt_pixelwidth = 2;
972 break;
973 case CIRRUS_BLTMODE_PIXELWIDTH24:
974 s->cirrus_blt_pixelwidth = 3;
975 break;
976 case CIRRUS_BLTMODE_PIXELWIDTH32:
977 s->cirrus_blt_pixelwidth = 4;
978 break;
979 default:
980 #ifdef DEBUG_BITBLT
981 printf("cirrus: bitblt - pixel width is unknown\n");
982 #endif
983 goto bitblt_ignore;
984 }
985 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
986
987 if ((s->
988 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
989 CIRRUS_BLTMODE_MEMSYSDEST))
990 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
991 #ifdef DEBUG_BITBLT
992 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
993 #endif
994 goto bitblt_ignore;
995 }
996
997 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
998 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
999 CIRRUS_BLTMODE_TRANSPARENTCOMP |
1000 CIRRUS_BLTMODE_PATTERNCOPY |
1001 CIRRUS_BLTMODE_COLOREXPAND)) ==
1002 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
1003 cirrus_bitblt_fgcol(s);
1004 cirrus_bitblt_solidfill(s, blt_rop);
1005 } else {
1006 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
1007 CIRRUS_BLTMODE_PATTERNCOPY)) ==
1008 CIRRUS_BLTMODE_COLOREXPAND) {
1009
1010 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1011 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1012 cirrus_bitblt_bgcol(s);
1013 else
1014 cirrus_bitblt_fgcol(s);
1015 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1016 } else {
1017 cirrus_bitblt_fgcol(s);
1018 cirrus_bitblt_bgcol(s);
1019 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1020 }
1021 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1022 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1023 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1024 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1025 cirrus_bitblt_bgcol(s);
1026 else
1027 cirrus_bitblt_fgcol(s);
1028 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1029 } else {
1030 cirrus_bitblt_fgcol(s);
1031 cirrus_bitblt_bgcol(s);
1032 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1033 }
1034 } else {
1035 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1036 }
1037 } else {
1038 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1039 if (s->cirrus_blt_pixelwidth > 2) {
1040 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1041 goto bitblt_ignore;
1042 }
1043 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1044 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1045 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1046 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1047 } else {
1048 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1049 }
1050 } else {
1051 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1052 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1053 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1054 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1055 } else {
1056 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1057 }
1058 }
1059 }
1060 // setup bitblt engine.
1061 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1062 if (!cirrus_bitblt_cputovideo(s))
1063 goto bitblt_ignore;
1064 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1065 if (!cirrus_bitblt_videotocpu(s))
1066 goto bitblt_ignore;
1067 } else {
1068 if (!cirrus_bitblt_videotovideo(s))
1069 goto bitblt_ignore;
1070 }
1071 }
1072 return;
1073 bitblt_ignore:;
1074 cirrus_bitblt_reset(s);
1075 }
1076
1077 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1078 {
1079 unsigned old_value;
1080
1081 old_value = s->vga.gr[0x31];
1082 s->vga.gr[0x31] = reg_value;
1083
1084 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1085 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1086 cirrus_bitblt_reset(s);
1087 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1088 ((reg_value & CIRRUS_BLT_START) != 0)) {
1089 cirrus_bitblt_start(s);
1090 }
1091 }
1092
1093
1094 /***************************************
1095 *
1096 * basic parameters
1097 *
1098 ***************************************/
1099
1100 static void cirrus_get_offsets(VGACommonState *s1,
1101 uint32_t *pline_offset,
1102 uint32_t *pstart_addr,
1103 uint32_t *pline_compare)
1104 {
1105 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1106 uint32_t start_addr, line_offset, line_compare;
1107
1108 line_offset = s->vga.cr[0x13]
1109 | ((s->vga.cr[0x1b] & 0x10) << 4);
1110 line_offset <<= 3;
1111 *pline_offset = line_offset;
1112
1113 start_addr = (s->vga.cr[0x0c] << 8)
1114 | s->vga.cr[0x0d]
1115 | ((s->vga.cr[0x1b] & 0x01) << 16)
1116 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1117 | ((s->vga.cr[0x1d] & 0x80) << 12);
1118 *pstart_addr = start_addr;
1119
1120 line_compare = s->vga.cr[0x18] |
1121 ((s->vga.cr[0x07] & 0x10) << 4) |
1122 ((s->vga.cr[0x09] & 0x40) << 3);
1123 *pline_compare = line_compare;
1124 }
1125
1126 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1127 {
1128 uint32_t ret = 16;
1129
1130 switch (s->cirrus_hidden_dac_data & 0xf) {
1131 case 0:
1132 ret = 15;
1133 break; /* Sierra HiColor */
1134 case 1:
1135 ret = 16;
1136 break; /* XGA HiColor */
1137 default:
1138 #ifdef DEBUG_CIRRUS
1139 printf("cirrus: invalid DAC value %x in 16bpp\n",
1140 (s->cirrus_hidden_dac_data & 0xf));
1141 #endif
1142 ret = 15; /* XXX */
1143 break;
1144 }
1145 return ret;
1146 }
1147
1148 static int cirrus_get_bpp(VGACommonState *s1)
1149 {
1150 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1151 uint32_t ret = 8;
1152
1153 if ((s->vga.sr[0x07] & 0x01) != 0) {
1154 /* Cirrus SVGA */
1155 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1156 case CIRRUS_SR7_BPP_8:
1157 ret = 8;
1158 break;
1159 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1160 ret = cirrus_get_bpp16_depth(s);
1161 break;
1162 case CIRRUS_SR7_BPP_24:
1163 ret = 24;
1164 break;
1165 case CIRRUS_SR7_BPP_16:
1166 ret = cirrus_get_bpp16_depth(s);
1167 break;
1168 case CIRRUS_SR7_BPP_32:
1169 ret = 32;
1170 break;
1171 default:
1172 #ifdef DEBUG_CIRRUS
1173 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1174 #endif
1175 ret = 8;
1176 break;
1177 }
1178 } else {
1179 /* VGA */
1180 ret = 0;
1181 }
1182
1183 return ret;
1184 }
1185
1186 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1187 {
1188 int width, height;
1189
1190 width = (s->cr[0x01] + 1) * 8;
1191 height = s->cr[0x12] |
1192 ((s->cr[0x07] & 0x02) << 7) |
1193 ((s->cr[0x07] & 0x40) << 3);
1194 height = (height + 1);
1195 /* interlace support */
1196 if (s->cr[0x1a] & 0x01)
1197 height = height * 2;
1198 *pwidth = width;
1199 *pheight = height;
1200 }
1201
1202 /***************************************
1203 *
1204 * bank memory
1205 *
1206 ***************************************/
1207
1208 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1209 {
1210 unsigned offset;
1211 unsigned limit;
1212
1213 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1214 offset = s->vga.gr[0x09 + bank_index];
1215 else /* single bank */
1216 offset = s->vga.gr[0x09];
1217
1218 if ((s->vga.gr[0x0b] & 0x20) != 0)
1219 offset <<= 14;
1220 else
1221 offset <<= 12;
1222
1223 if (s->real_vram_size <= offset)
1224 limit = 0;
1225 else
1226 limit = s->real_vram_size - offset;
1227
1228 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1229 if (limit > 0x8000) {
1230 offset += 0x8000;
1231 limit -= 0x8000;
1232 } else {
1233 limit = 0;
1234 }
1235 }
1236
1237 if (limit > 0) {
1238 s->cirrus_bank_base[bank_index] = offset;
1239 s->cirrus_bank_limit[bank_index] = limit;
1240 } else {
1241 s->cirrus_bank_base[bank_index] = 0;
1242 s->cirrus_bank_limit[bank_index] = 0;
1243 }
1244 }
1245
1246 /***************************************
1247 *
1248 * I/O access between 0x3c4-0x3c5
1249 *
1250 ***************************************/
1251
1252 static int cirrus_vga_read_sr(CirrusVGAState * s)
1253 {
1254 switch (s->vga.sr_index) {
1255 case 0x00: // Standard VGA
1256 case 0x01: // Standard VGA
1257 case 0x02: // Standard VGA
1258 case 0x03: // Standard VGA
1259 case 0x04: // Standard VGA
1260 return s->vga.sr[s->vga.sr_index];
1261 case 0x06: // Unlock Cirrus extensions
1262 return s->vga.sr[s->vga.sr_index];
1263 case 0x10:
1264 case 0x30:
1265 case 0x50:
1266 case 0x70: // Graphics Cursor X
1267 case 0x90:
1268 case 0xb0:
1269 case 0xd0:
1270 case 0xf0: // Graphics Cursor X
1271 return s->vga.sr[0x10];
1272 case 0x11:
1273 case 0x31:
1274 case 0x51:
1275 case 0x71: // Graphics Cursor Y
1276 case 0x91:
1277 case 0xb1:
1278 case 0xd1:
1279 case 0xf1: // Graphics Cursor Y
1280 return s->vga.sr[0x11];
1281 case 0x05: // ???
1282 case 0x07: // Extended Sequencer Mode
1283 case 0x08: // EEPROM Control
1284 case 0x09: // Scratch Register 0
1285 case 0x0a: // Scratch Register 1
1286 case 0x0b: // VCLK 0
1287 case 0x0c: // VCLK 1
1288 case 0x0d: // VCLK 2
1289 case 0x0e: // VCLK 3
1290 case 0x0f: // DRAM Control
1291 case 0x12: // Graphics Cursor Attribute
1292 case 0x13: // Graphics Cursor Pattern Address
1293 case 0x14: // Scratch Register 2
1294 case 0x15: // Scratch Register 3
1295 case 0x16: // Performance Tuning Register
1296 case 0x17: // Configuration Readback and Extended Control
1297 case 0x18: // Signature Generator Control
1298 case 0x19: // Signal Generator Result
1299 case 0x1a: // Signal Generator Result
1300 case 0x1b: // VCLK 0 Denominator & Post
1301 case 0x1c: // VCLK 1 Denominator & Post
1302 case 0x1d: // VCLK 2 Denominator & Post
1303 case 0x1e: // VCLK 3 Denominator & Post
1304 case 0x1f: // BIOS Write Enable and MCLK select
1305 #ifdef DEBUG_CIRRUS
1306 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1307 #endif
1308 return s->vga.sr[s->vga.sr_index];
1309 default:
1310 #ifdef DEBUG_CIRRUS
1311 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1312 #endif
1313 return 0xff;
1314 break;
1315 }
1316 }
1317
1318 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1319 {
1320 switch (s->vga.sr_index) {
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
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;
1330 case 0x06: // Unlock Cirrus extensions
1331 val &= 0x17;
1332 if (val == 0x12) {
1333 s->vga.sr[s->vga.sr_index] = 0x12;
1334 } else {
1335 s->vga.sr[s->vga.sr_index] = 0x0f;
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
1346 s->vga.sr[0x10] = val;
1347 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
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
1357 s->vga.sr[0x11] = val;
1358 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1359 break;
1360 case 0x07: // Extended Sequencer Mode
1361 cirrus_update_memory_access(s);
1362 /* fall through */
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
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
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
1383 s->vga.sr[s->vga.sr_index] = val;
1384 #ifdef DEBUG_CIRRUS
1385 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1386 s->vga.sr_index, val);
1387 #endif
1388 break;
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;
1397 case 0x17: // Configuration Readback and Extended Control
1398 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1399 | (val & 0xc7);
1400 cirrus_update_memory_access(s);
1401 break;
1402 default:
1403 #ifdef DEBUG_CIRRUS
1404 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1405 s->vga.sr_index, val);
1406 #endif
1407 break;
1408 }
1409 }
1410
1411 /***************************************
1412 *
1413 * I/O access at 0x3c6
1414 *
1415 ***************************************/
1416
1417 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1418 {
1419 if (++s->cirrus_hidden_dac_lockindex == 5) {
1420 s->cirrus_hidden_dac_lockindex = 0;
1421 return s->cirrus_hidden_dac_data;
1422 }
1423 return 0xff;
1424 }
1425
1426 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1427 {
1428 if (s->cirrus_hidden_dac_lockindex == 4) {
1429 s->cirrus_hidden_dac_data = reg_value;
1430 #if defined(DEBUG_CIRRUS)
1431 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1432 #endif
1433 }
1434 s->cirrus_hidden_dac_lockindex = 0;
1435 }
1436
1437 /***************************************
1438 *
1439 * I/O access at 0x3c9
1440 *
1441 ***************************************/
1442
1443 static int cirrus_vga_read_palette(CirrusVGAState * s)
1444 {
1445 int val;
1446
1447 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1448 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1449 s->vga.dac_sub_index];
1450 } else {
1451 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1452 }
1453 if (++s->vga.dac_sub_index == 3) {
1454 s->vga.dac_sub_index = 0;
1455 s->vga.dac_read_index++;
1456 }
1457 return val;
1458 }
1459
1460 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1461 {
1462 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1463 if (++s->vga.dac_sub_index == 3) {
1464 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1465 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1466 s->vga.dac_cache, 3);
1467 } else {
1468 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1469 }
1470 /* XXX update cursor */
1471 s->vga.dac_sub_index = 0;
1472 s->vga.dac_write_index++;
1473 }
1474 }
1475
1476 /***************************************
1477 *
1478 * I/O access between 0x3ce-0x3cf
1479 *
1480 ***************************************/
1481
1482 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1483 {
1484 switch (reg_index) {
1485 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1486 return s->cirrus_shadow_gr0;
1487 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1488 return s->cirrus_shadow_gr1;
1489 case 0x02: // Standard VGA
1490 case 0x03: // Standard VGA
1491 case 0x04: // Standard VGA
1492 case 0x06: // Standard VGA
1493 case 0x07: // Standard VGA
1494 case 0x08: // Standard VGA
1495 return s->vga.gr[s->vga.gr_index];
1496 case 0x05: // Standard VGA, Cirrus extended mode
1497 default:
1498 break;
1499 }
1500
1501 if (reg_index < 0x3a) {
1502 return s->vga.gr[reg_index];
1503 } else {
1504 #ifdef DEBUG_CIRRUS
1505 printf("cirrus: inport gr_index %02x\n", reg_index);
1506 #endif
1507 return 0xff;
1508 }
1509 }
1510
1511 static void
1512 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1513 {
1514 #if defined(DEBUG_BITBLT) && 0
1515 printf("gr%02x: %02x\n", reg_index, reg_value);
1516 #endif
1517 switch (reg_index) {
1518 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1519 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1520 s->cirrus_shadow_gr0 = reg_value;
1521 break;
1522 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1523 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1524 s->cirrus_shadow_gr1 = reg_value;
1525 break;
1526 case 0x02: // Standard VGA
1527 case 0x03: // Standard VGA
1528 case 0x04: // Standard VGA
1529 case 0x06: // Standard VGA
1530 case 0x07: // Standard VGA
1531 case 0x08: // Standard VGA
1532 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1533 break;
1534 case 0x05: // Standard VGA, Cirrus extended mode
1535 s->vga.gr[reg_index] = reg_value & 0x7f;
1536 cirrus_update_memory_access(s);
1537 break;
1538 case 0x09: // bank offset #0
1539 case 0x0A: // bank offset #1
1540 s->vga.gr[reg_index] = reg_value;
1541 cirrus_update_bank_ptr(s, 0);
1542 cirrus_update_bank_ptr(s, 1);
1543 cirrus_update_memory_access(s);
1544 break;
1545 case 0x0B:
1546 s->vga.gr[reg_index] = reg_value;
1547 cirrus_update_bank_ptr(s, 0);
1548 cirrus_update_bank_ptr(s, 1);
1549 cirrus_update_memory_access(s);
1550 break;
1551 case 0x10: // BGCOLOR 0x0000ff00
1552 case 0x11: // FGCOLOR 0x0000ff00
1553 case 0x12: // BGCOLOR 0x00ff0000
1554 case 0x13: // FGCOLOR 0x00ff0000
1555 case 0x14: // BGCOLOR 0xff000000
1556 case 0x15: // FGCOLOR 0xff000000
1557 case 0x20: // BLT WIDTH 0x0000ff
1558 case 0x22: // BLT HEIGHT 0x0000ff
1559 case 0x24: // BLT DEST PITCH 0x0000ff
1560 case 0x26: // BLT SRC PITCH 0x0000ff
1561 case 0x28: // BLT DEST ADDR 0x0000ff
1562 case 0x29: // BLT DEST ADDR 0x00ff00
1563 case 0x2c: // BLT SRC ADDR 0x0000ff
1564 case 0x2d: // BLT SRC ADDR 0x00ff00
1565 case 0x2f: // BLT WRITEMASK
1566 case 0x30: // BLT MODE
1567 case 0x32: // RASTER OP
1568 case 0x33: // BLT MODEEXT
1569 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1570 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1571 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1572 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1573 s->vga.gr[reg_index] = reg_value;
1574 break;
1575 case 0x21: // BLT WIDTH 0x001f00
1576 case 0x23: // BLT HEIGHT 0x001f00
1577 case 0x25: // BLT DEST PITCH 0x001f00
1578 case 0x27: // BLT SRC PITCH 0x001f00
1579 s->vga.gr[reg_index] = reg_value & 0x1f;
1580 break;
1581 case 0x2a: // BLT DEST ADDR 0x3f0000
1582 s->vga.gr[reg_index] = reg_value & 0x3f;
1583 /* if auto start mode, starts bit blt now */
1584 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1585 cirrus_bitblt_start(s);
1586 }
1587 break;
1588 case 0x2e: // BLT SRC ADDR 0x3f0000
1589 s->vga.gr[reg_index] = reg_value & 0x3f;
1590 break;
1591 case 0x31: // BLT STATUS/START
1592 cirrus_write_bitblt(s, reg_value);
1593 break;
1594 default:
1595 #ifdef DEBUG_CIRRUS
1596 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1597 reg_value);
1598 #endif
1599 break;
1600 }
1601 }
1602
1603 /***************************************
1604 *
1605 * I/O access between 0x3d4-0x3d5
1606 *
1607 ***************************************/
1608
1609 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1610 {
1611 switch (reg_index) {
1612 case 0x00: // Standard VGA
1613 case 0x01: // Standard VGA
1614 case 0x02: // Standard VGA
1615 case 0x03: // Standard VGA
1616 case 0x04: // Standard VGA
1617 case 0x05: // Standard VGA
1618 case 0x06: // Standard VGA
1619 case 0x07: // Standard VGA
1620 case 0x08: // Standard VGA
1621 case 0x09: // Standard VGA
1622 case 0x0a: // Standard VGA
1623 case 0x0b: // Standard VGA
1624 case 0x0c: // Standard VGA
1625 case 0x0d: // Standard VGA
1626 case 0x0e: // Standard VGA
1627 case 0x0f: // Standard VGA
1628 case 0x10: // Standard VGA
1629 case 0x11: // Standard VGA
1630 case 0x12: // Standard VGA
1631 case 0x13: // Standard VGA
1632 case 0x14: // Standard VGA
1633 case 0x15: // Standard VGA
1634 case 0x16: // Standard VGA
1635 case 0x17: // Standard VGA
1636 case 0x18: // Standard VGA
1637 return s->vga.cr[s->vga.cr_index];
1638 case 0x24: // Attribute Controller Toggle Readback (R)
1639 return (s->vga.ar_flip_flop << 7);
1640 case 0x19: // Interlace End
1641 case 0x1a: // Miscellaneous Control
1642 case 0x1b: // Extended Display Control
1643 case 0x1c: // Sync Adjust and Genlock
1644 case 0x1d: // Overlay Extended Control
1645 case 0x22: // Graphics Data Latches Readback (R)
1646 case 0x25: // Part Status
1647 case 0x27: // Part ID (R)
1648 return s->vga.cr[s->vga.cr_index];
1649 case 0x26: // Attribute Controller Index Readback (R)
1650 return s->vga.ar_index & 0x3f;
1651 break;
1652 default:
1653 #ifdef DEBUG_CIRRUS
1654 printf("cirrus: inport cr_index %02x\n", reg_index);
1655 #endif
1656 return 0xff;
1657 }
1658 }
1659
1660 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1661 {
1662 switch (s->vga.cr_index) {
1663 case 0x00: // Standard VGA
1664 case 0x01: // Standard VGA
1665 case 0x02: // Standard VGA
1666 case 0x03: // Standard VGA
1667 case 0x04: // Standard VGA
1668 case 0x05: // Standard VGA
1669 case 0x06: // Standard VGA
1670 case 0x07: // Standard VGA
1671 case 0x08: // Standard VGA
1672 case 0x09: // Standard VGA
1673 case 0x0a: // Standard VGA
1674 case 0x0b: // Standard VGA
1675 case 0x0c: // Standard VGA
1676 case 0x0d: // Standard VGA
1677 case 0x0e: // Standard VGA
1678 case 0x0f: // Standard VGA
1679 case 0x10: // Standard VGA
1680 case 0x11: // Standard VGA
1681 case 0x12: // Standard VGA
1682 case 0x13: // Standard VGA
1683 case 0x14: // Standard VGA
1684 case 0x15: // Standard VGA
1685 case 0x16: // Standard VGA
1686 case 0x17: // Standard VGA
1687 case 0x18: // Standard VGA
1688 /* handle CR0-7 protection */
1689 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1690 /* can always write bit 4 of CR7 */
1691 if (s->vga.cr_index == 7)
1692 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1693 return;
1694 }
1695 s->vga.cr[s->vga.cr_index] = reg_value;
1696 switch(s->vga.cr_index) {
1697 case 0x00:
1698 case 0x04:
1699 case 0x05:
1700 case 0x06:
1701 case 0x07:
1702 case 0x11:
1703 case 0x17:
1704 s->vga.update_retrace_info(&s->vga);
1705 break;
1706 }
1707 break;
1708 case 0x19: // Interlace End
1709 case 0x1a: // Miscellaneous Control
1710 case 0x1b: // Extended Display Control
1711 case 0x1c: // Sync Adjust and Genlock
1712 case 0x1d: // Overlay Extended Control
1713 s->vga.cr[s->vga.cr_index] = reg_value;
1714 #ifdef DEBUG_CIRRUS
1715 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1716 s->vga.cr_index, reg_value);
1717 #endif
1718 break;
1719 case 0x22: // Graphics Data Latches Readback (R)
1720 case 0x24: // Attribute Controller Toggle Readback (R)
1721 case 0x26: // Attribute Controller Index Readback (R)
1722 case 0x27: // Part ID (R)
1723 break;
1724 case 0x25: // Part Status
1725 default:
1726 #ifdef DEBUG_CIRRUS
1727 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1728 s->vga.cr_index, reg_value);
1729 #endif
1730 break;
1731 }
1732 }
1733
1734 /***************************************
1735 *
1736 * memory-mapped I/O (bitblt)
1737 *
1738 ***************************************/
1739
1740 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1741 {
1742 int value = 0xff;
1743
1744 switch (address) {
1745 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1746 value = cirrus_vga_read_gr(s, 0x00);
1747 break;
1748 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1749 value = cirrus_vga_read_gr(s, 0x10);
1750 break;
1751 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1752 value = cirrus_vga_read_gr(s, 0x12);
1753 break;
1754 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1755 value = cirrus_vga_read_gr(s, 0x14);
1756 break;
1757 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1758 value = cirrus_vga_read_gr(s, 0x01);
1759 break;
1760 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1761 value = cirrus_vga_read_gr(s, 0x11);
1762 break;
1763 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1764 value = cirrus_vga_read_gr(s, 0x13);
1765 break;
1766 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1767 value = cirrus_vga_read_gr(s, 0x15);
1768 break;
1769 case (CIRRUS_MMIO_BLTWIDTH + 0):
1770 value = cirrus_vga_read_gr(s, 0x20);
1771 break;
1772 case (CIRRUS_MMIO_BLTWIDTH + 1):
1773 value = cirrus_vga_read_gr(s, 0x21);
1774 break;
1775 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1776 value = cirrus_vga_read_gr(s, 0x22);
1777 break;
1778 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1779 value = cirrus_vga_read_gr(s, 0x23);
1780 break;
1781 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1782 value = cirrus_vga_read_gr(s, 0x24);
1783 break;
1784 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1785 value = cirrus_vga_read_gr(s, 0x25);
1786 break;
1787 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1788 value = cirrus_vga_read_gr(s, 0x26);
1789 break;
1790 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1791 value = cirrus_vga_read_gr(s, 0x27);
1792 break;
1793 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1794 value = cirrus_vga_read_gr(s, 0x28);
1795 break;
1796 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1797 value = cirrus_vga_read_gr(s, 0x29);
1798 break;
1799 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1800 value = cirrus_vga_read_gr(s, 0x2a);
1801 break;
1802 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1803 value = cirrus_vga_read_gr(s, 0x2c);
1804 break;
1805 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1806 value = cirrus_vga_read_gr(s, 0x2d);
1807 break;
1808 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1809 value = cirrus_vga_read_gr(s, 0x2e);
1810 break;
1811 case CIRRUS_MMIO_BLTWRITEMASK:
1812 value = cirrus_vga_read_gr(s, 0x2f);
1813 break;
1814 case CIRRUS_MMIO_BLTMODE:
1815 value = cirrus_vga_read_gr(s, 0x30);
1816 break;
1817 case CIRRUS_MMIO_BLTROP:
1818 value = cirrus_vga_read_gr(s, 0x32);
1819 break;
1820 case CIRRUS_MMIO_BLTMODEEXT:
1821 value = cirrus_vga_read_gr(s, 0x33);
1822 break;
1823 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1824 value = cirrus_vga_read_gr(s, 0x34);
1825 break;
1826 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1827 value = cirrus_vga_read_gr(s, 0x35);
1828 break;
1829 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1830 value = cirrus_vga_read_gr(s, 0x38);
1831 break;
1832 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1833 value = cirrus_vga_read_gr(s, 0x39);
1834 break;
1835 case CIRRUS_MMIO_BLTSTATUS:
1836 value = cirrus_vga_read_gr(s, 0x31);
1837 break;
1838 default:
1839 #ifdef DEBUG_CIRRUS
1840 printf("cirrus: mmio read - address 0x%04x\n", address);
1841 #endif
1842 break;
1843 }
1844
1845 trace_vga_cirrus_write_blt(address, value);
1846 return (uint8_t) value;
1847 }
1848
1849 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1850 uint8_t value)
1851 {
1852 trace_vga_cirrus_write_blt(address, value);
1853 switch (address) {
1854 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1855 cirrus_vga_write_gr(s, 0x00, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1858 cirrus_vga_write_gr(s, 0x10, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1861 cirrus_vga_write_gr(s, 0x12, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1864 cirrus_vga_write_gr(s, 0x14, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1867 cirrus_vga_write_gr(s, 0x01, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1870 cirrus_vga_write_gr(s, 0x11, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1873 cirrus_vga_write_gr(s, 0x13, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1876 cirrus_vga_write_gr(s, 0x15, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTWIDTH + 0):
1879 cirrus_vga_write_gr(s, 0x20, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTWIDTH + 1):
1882 cirrus_vga_write_gr(s, 0x21, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1885 cirrus_vga_write_gr(s, 0x22, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1888 cirrus_vga_write_gr(s, 0x23, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1891 cirrus_vga_write_gr(s, 0x24, value);
1892 break;
1893 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1894 cirrus_vga_write_gr(s, 0x25, value);
1895 break;
1896 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1897 cirrus_vga_write_gr(s, 0x26, value);
1898 break;
1899 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1900 cirrus_vga_write_gr(s, 0x27, value);
1901 break;
1902 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1903 cirrus_vga_write_gr(s, 0x28, value);
1904 break;
1905 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1906 cirrus_vga_write_gr(s, 0x29, value);
1907 break;
1908 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1909 cirrus_vga_write_gr(s, 0x2a, value);
1910 break;
1911 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1912 /* ignored */
1913 break;
1914 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1915 cirrus_vga_write_gr(s, 0x2c, value);
1916 break;
1917 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1918 cirrus_vga_write_gr(s, 0x2d, value);
1919 break;
1920 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1921 cirrus_vga_write_gr(s, 0x2e, value);
1922 break;
1923 case CIRRUS_MMIO_BLTWRITEMASK:
1924 cirrus_vga_write_gr(s, 0x2f, value);
1925 break;
1926 case CIRRUS_MMIO_BLTMODE:
1927 cirrus_vga_write_gr(s, 0x30, value);
1928 break;
1929 case CIRRUS_MMIO_BLTROP:
1930 cirrus_vga_write_gr(s, 0x32, value);
1931 break;
1932 case CIRRUS_MMIO_BLTMODEEXT:
1933 cirrus_vga_write_gr(s, 0x33, value);
1934 break;
1935 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1936 cirrus_vga_write_gr(s, 0x34, value);
1937 break;
1938 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1939 cirrus_vga_write_gr(s, 0x35, value);
1940 break;
1941 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1942 cirrus_vga_write_gr(s, 0x38, value);
1943 break;
1944 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1945 cirrus_vga_write_gr(s, 0x39, value);
1946 break;
1947 case CIRRUS_MMIO_BLTSTATUS:
1948 cirrus_vga_write_gr(s, 0x31, value);
1949 break;
1950 default:
1951 #ifdef DEBUG_CIRRUS
1952 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1953 address, value);
1954 #endif
1955 break;
1956 }
1957 }
1958
1959 /***************************************
1960 *
1961 * write mode 4/5
1962 *
1963 ***************************************/
1964
1965 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1966 unsigned mode,
1967 unsigned offset,
1968 uint32_t mem_value)
1969 {
1970 int x;
1971 unsigned val = mem_value;
1972 uint8_t *dst;
1973
1974 for (x = 0; x < 8; x++) {
1975 dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask);
1976 if (val & 0x80) {
1977 *dst = s->cirrus_shadow_gr1;
1978 } else if (mode == 5) {
1979 *dst = s->cirrus_shadow_gr0;
1980 }
1981 val <<= 1;
1982 }
1983 memory_region_set_dirty(&s->vga.vram, offset, 8);
1984 }
1985
1986 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1987 unsigned mode,
1988 unsigned offset,
1989 uint32_t mem_value)
1990 {
1991 int x;
1992 unsigned val = mem_value;
1993 uint8_t *dst;
1994
1995 for (x = 0; x < 8; x++) {
1996 dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1);
1997 if (val & 0x80) {
1998 *dst = s->cirrus_shadow_gr1;
1999 *(dst + 1) = s->vga.gr[0x11];
2000 } else if (mode == 5) {
2001 *dst = s->cirrus_shadow_gr0;
2002 *(dst + 1) = s->vga.gr[0x10];
2003 }
2004 val <<= 1;
2005 }
2006 memory_region_set_dirty(&s->vga.vram, offset, 16);
2007 }
2008
2009 /***************************************
2010 *
2011 * memory access between 0xa0000-0xbffff
2012 *
2013 ***************************************/
2014
2015 static uint64_t cirrus_vga_mem_read(void *opaque,
2016 hwaddr addr,
2017 uint32_t size)
2018 {
2019 CirrusVGAState *s = opaque;
2020 unsigned bank_index;
2021 unsigned bank_offset;
2022 uint32_t val;
2023
2024 if ((s->vga.sr[0x07] & 0x01) == 0) {
2025 return vga_mem_readb(&s->vga, addr);
2026 }
2027
2028 if (addr < 0x10000) {
2029 /* XXX handle bitblt */
2030 /* video memory */
2031 bank_index = addr >> 15;
2032 bank_offset = addr & 0x7fff;
2033 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2034 bank_offset += s->cirrus_bank_base[bank_index];
2035 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2036 bank_offset <<= 4;
2037 } else if (s->vga.gr[0x0B] & 0x02) {
2038 bank_offset <<= 3;
2039 }
2040 bank_offset &= s->cirrus_addr_mask;
2041 val = *(s->vga.vram_ptr + bank_offset);
2042 } else
2043 val = 0xff;
2044 } else if (addr >= 0x18000 && addr < 0x18100) {
2045 /* memory-mapped I/O */
2046 val = 0xff;
2047 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2048 val = cirrus_mmio_blt_read(s, addr & 0xff);
2049 }
2050 } else {
2051 val = 0xff;
2052 #ifdef DEBUG_CIRRUS
2053 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2054 #endif
2055 }
2056 return val;
2057 }
2058
2059 static void cirrus_vga_mem_write(void *opaque,
2060 hwaddr addr,
2061 uint64_t mem_value,
2062 uint32_t size)
2063 {
2064 CirrusVGAState *s = opaque;
2065 unsigned bank_index;
2066 unsigned bank_offset;
2067 unsigned mode;
2068
2069 if ((s->vga.sr[0x07] & 0x01) == 0) {
2070 vga_mem_writeb(&s->vga, addr, mem_value);
2071 return;
2072 }
2073
2074 if (addr < 0x10000) {
2075 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2076 /* bitblt */
2077 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2078 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2079 cirrus_bitblt_cputovideo_next(s);
2080 }
2081 } else {
2082 /* video memory */
2083 bank_index = addr >> 15;
2084 bank_offset = addr & 0x7fff;
2085 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2086 bank_offset += s->cirrus_bank_base[bank_index];
2087 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2088 bank_offset <<= 4;
2089 } else if (s->vga.gr[0x0B] & 0x02) {
2090 bank_offset <<= 3;
2091 }
2092 bank_offset &= s->cirrus_addr_mask;
2093 mode = s->vga.gr[0x05] & 0x7;
2094 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2095 *(s->vga.vram_ptr + bank_offset) = mem_value;
2096 memory_region_set_dirty(&s->vga.vram, bank_offset,
2097 sizeof(mem_value));
2098 } else {
2099 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2100 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2101 bank_offset,
2102 mem_value);
2103 } else {
2104 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2105 bank_offset,
2106 mem_value);
2107 }
2108 }
2109 }
2110 }
2111 } else if (addr >= 0x18000 && addr < 0x18100) {
2112 /* memory-mapped I/O */
2113 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2114 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2115 }
2116 } else {
2117 #ifdef DEBUG_CIRRUS
2118 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr,
2119 mem_value);
2120 #endif
2121 }
2122 }
2123
2124 static const MemoryRegionOps cirrus_vga_mem_ops = {
2125 .read = cirrus_vga_mem_read,
2126 .write = cirrus_vga_mem_write,
2127 .endianness = DEVICE_LITTLE_ENDIAN,
2128 .impl = {
2129 .min_access_size = 1,
2130 .max_access_size = 1,
2131 },
2132 };
2133
2134 /***************************************
2135 *
2136 * hardware cursor
2137 *
2138 ***************************************/
2139
2140 static inline void invalidate_cursor1(CirrusVGAState *s)
2141 {
2142 if (s->last_hw_cursor_size) {
2143 vga_invalidate_scanlines(&s->vga,
2144 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2145 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2146 }
2147 }
2148
2149 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2150 {
2151 const uint8_t *src;
2152 uint32_t content;
2153 int y, y_min, y_max;
2154
2155 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
2156 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2157 src += (s->vga.sr[0x13] & 0x3c) * 256;
2158 y_min = 64;
2159 y_max = -1;
2160 for(y = 0; y < 64; y++) {
2161 content = ((uint32_t *)src)[0] |
2162 ((uint32_t *)src)[1] |
2163 ((uint32_t *)src)[2] |
2164 ((uint32_t *)src)[3];
2165 if (content) {
2166 if (y < y_min)
2167 y_min = y;
2168 if (y > y_max)
2169 y_max = y;
2170 }
2171 src += 16;
2172 }
2173 } else {
2174 src += (s->vga.sr[0x13] & 0x3f) * 256;
2175 y_min = 32;
2176 y_max = -1;
2177 for(y = 0; y < 32; y++) {
2178 content = ((uint32_t *)src)[0] |
2179 ((uint32_t *)(src + 128))[0];
2180 if (content) {
2181 if (y < y_min)
2182 y_min = y;
2183 if (y > y_max)
2184 y_max = y;
2185 }
2186 src += 4;
2187 }
2188 }
2189 if (y_min > y_max) {
2190 s->last_hw_cursor_y_start = 0;
2191 s->last_hw_cursor_y_end = 0;
2192 } else {
2193 s->last_hw_cursor_y_start = y_min;
2194 s->last_hw_cursor_y_end = y_max + 1;
2195 }
2196 }
2197
2198 /* NOTE: we do not currently handle the cursor bitmap change, so we
2199 update the cursor only if it moves. */
2200 static void cirrus_cursor_invalidate(VGACommonState *s1)
2201 {
2202 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2203 int size;
2204
2205 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2206 size = 0;
2207 } else {
2208 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2209 size = 64;
2210 else
2211 size = 32;
2212 }
2213 /* invalidate last cursor and new cursor if any change */
2214 if (s->last_hw_cursor_size != size ||
2215 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2216 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
2217
2218 invalidate_cursor1(s);
2219
2220 s->last_hw_cursor_size = size;
2221 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2222 s->last_hw_cursor_y = s->vga.hw_cursor_y;
2223 /* compute the real cursor min and max y */
2224 cirrus_cursor_compute_yrange(s);
2225 invalidate_cursor1(s);
2226 }
2227 }
2228
2229 static void vga_draw_cursor_line(uint8_t *d1,
2230 const uint8_t *src1,
2231 int poffset, int w,
2232 unsigned int color0,
2233 unsigned int color1,
2234 unsigned int color_xor)
2235 {
2236 const uint8_t *plane0, *plane1;
2237 int x, b0, b1;
2238 uint8_t *d;
2239
2240 d = d1;
2241 plane0 = src1;
2242 plane1 = src1 + poffset;
2243 for (x = 0; x < w; x++) {
2244 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2245 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2246 switch (b0 | (b1 << 1)) {
2247 case 0:
2248 break;
2249 case 1:
2250 ((uint32_t *)d)[0] ^= color_xor;
2251 break;
2252 case 2:
2253 ((uint32_t *)d)[0] = color0;
2254 break;
2255 case 3:
2256 ((uint32_t *)d)[0] = color1;
2257 break;
2258 }
2259 d += 4;
2260 }
2261 }
2262
2263 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2264 {
2265 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2266 int w, h, x1, x2, poffset;
2267 unsigned int color0, color1;
2268 const uint8_t *palette, *src;
2269 uint32_t content;
2270
2271 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2272 return;
2273 /* fast test to see if the cursor intersects with the scan line */
2274 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2275 h = 64;
2276 } else {
2277 h = 32;
2278 }
2279 if (scr_y < s->vga.hw_cursor_y ||
2280 scr_y >= (s->vga.hw_cursor_y + h)) {
2281 return;
2282 }
2283
2284 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
2285 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2286 src += (s->vga.sr[0x13] & 0x3c) * 256;
2287 src += (scr_y - s->vga.hw_cursor_y) * 16;
2288 poffset = 8;
2289 content = ((uint32_t *)src)[0] |
2290 ((uint32_t *)src)[1] |
2291 ((uint32_t *)src)[2] |
2292 ((uint32_t *)src)[3];
2293 } else {
2294 src += (s->vga.sr[0x13] & 0x3f) * 256;
2295 src += (scr_y - s->vga.hw_cursor_y) * 4;
2296
2297
2298 poffset = 128;
2299 content = ((uint32_t *)src)[0] |
2300 ((uint32_t *)(src + 128))[0];
2301 }
2302 /* if nothing to draw, no need to continue */
2303 if (!content)
2304 return;
2305 w = h;
2306
2307 x1 = s->vga.hw_cursor_x;
2308 if (x1 >= s->vga.last_scr_width)
2309 return;
2310 x2 = s->vga.hw_cursor_x + w;
2311 if (x2 > s->vga.last_scr_width)
2312 x2 = s->vga.last_scr_width;
2313 w = x2 - x1;
2314 palette = s->cirrus_hidden_palette;
2315 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2316 c6_to_8(palette[0x0 * 3 + 1]),
2317 c6_to_8(palette[0x0 * 3 + 2]));
2318 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2319 c6_to_8(palette[0xf * 3 + 1]),
2320 c6_to_8(palette[0xf * 3 + 2]));
2321 d1 += x1 * 4;
2322 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
2323 }
2324
2325 /***************************************
2326 *
2327 * LFB memory access
2328 *
2329 ***************************************/
2330
2331 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2332 unsigned size)
2333 {
2334 CirrusVGAState *s = opaque;
2335 uint32_t ret;
2336
2337 addr &= s->cirrus_addr_mask;
2338
2339 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2340 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2341 /* memory-mapped I/O */
2342 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2343 } else if (0) {
2344 /* XXX handle bitblt */
2345 ret = 0xff;
2346 } else {
2347 /* video memory */
2348 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2349 addr <<= 4;
2350 } else if (s->vga.gr[0x0B] & 0x02) {
2351 addr <<= 3;
2352 }
2353 addr &= s->cirrus_addr_mask;
2354 ret = *(s->vga.vram_ptr + addr);
2355 }
2356
2357 return ret;
2358 }
2359
2360 static void cirrus_linear_write(void *opaque, hwaddr addr,
2361 uint64_t val, unsigned size)
2362 {
2363 CirrusVGAState *s = opaque;
2364 unsigned mode;
2365
2366 addr &= s->cirrus_addr_mask;
2367
2368 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2369 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2370 /* memory-mapped I/O */
2371 cirrus_mmio_blt_write(s, addr & 0xff, val);
2372 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2373 /* bitblt */
2374 *s->cirrus_srcptr++ = (uint8_t) val;
2375 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2376 cirrus_bitblt_cputovideo_next(s);
2377 }
2378 } else {
2379 /* video memory */
2380 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2381 addr <<= 4;
2382 } else if (s->vga.gr[0x0B] & 0x02) {
2383 addr <<= 3;
2384 }
2385 addr &= s->cirrus_addr_mask;
2386
2387 mode = s->vga.gr[0x05] & 0x7;
2388 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2389 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2390 memory_region_set_dirty(&s->vga.vram, addr, 1);
2391 } else {
2392 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2393 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2394 } else {
2395 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2396 }
2397 }
2398 }
2399 }
2400
2401 /***************************************
2402 *
2403 * system to screen memory access
2404 *
2405 ***************************************/
2406
2407
2408 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2409 hwaddr addr,
2410 unsigned size)
2411 {
2412 CirrusVGAState *s = opaque;
2413 uint32_t ret;
2414
2415 /* XXX handle bitblt */
2416 (void)s;
2417 ret = 0xff;
2418 return ret;
2419 }
2420
2421 static void cirrus_linear_bitblt_write(void *opaque,
2422 hwaddr addr,
2423 uint64_t val,
2424 unsigned size)
2425 {
2426 CirrusVGAState *s = opaque;
2427
2428 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2429 /* bitblt */
2430 *s->cirrus_srcptr++ = (uint8_t) val;
2431 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2432 cirrus_bitblt_cputovideo_next(s);
2433 }
2434 }
2435 }
2436
2437 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2438 .read = cirrus_linear_bitblt_read,
2439 .write = cirrus_linear_bitblt_write,
2440 .endianness = DEVICE_LITTLE_ENDIAN,
2441 .impl = {
2442 .min_access_size = 1,
2443 .max_access_size = 1,
2444 },
2445 };
2446
2447 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2448 {
2449 MemoryRegion *mr = &s->cirrus_bank[bank];
2450 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2451 && !((s->vga.sr[0x07] & 0x01) == 0)
2452 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2453 && !(s->vga.gr[0x0B] & 0x02);
2454
2455 memory_region_set_enabled(mr, enabled);
2456 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2457 }
2458
2459 static void map_linear_vram(CirrusVGAState *s)
2460 {
2461 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2462 s->linear_vram = true;
2463 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2464 }
2465 map_linear_vram_bank(s, 0);
2466 map_linear_vram_bank(s, 1);
2467 }
2468
2469 static void unmap_linear_vram(CirrusVGAState *s)
2470 {
2471 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2472 s->linear_vram = false;
2473 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2474 }
2475 memory_region_set_enabled(&s->cirrus_bank[0], false);
2476 memory_region_set_enabled(&s->cirrus_bank[1], false);
2477 }
2478
2479 /* Compute the memory access functions */
2480 static void cirrus_update_memory_access(CirrusVGAState *s)
2481 {
2482 unsigned mode;
2483
2484 memory_region_transaction_begin();
2485 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2486 goto generic_io;
2487 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2488 goto generic_io;
2489 } else {
2490 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2491 goto generic_io;
2492 } else if (s->vga.gr[0x0B] & 0x02) {
2493 goto generic_io;
2494 }
2495
2496 mode = s->vga.gr[0x05] & 0x7;
2497 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2498 map_linear_vram(s);
2499 } else {
2500 generic_io:
2501 unmap_linear_vram(s);
2502 }
2503 }
2504 memory_region_transaction_commit();
2505 }
2506
2507
2508 /* I/O ports */
2509
2510 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2511 unsigned size)
2512 {
2513 CirrusVGAState *c = opaque;
2514 VGACommonState *s = &c->vga;
2515 int val, index;
2516
2517 addr += 0x3b0;
2518
2519 if (vga_ioport_invalid(s, addr)) {
2520 val = 0xff;
2521 } else {
2522 switch (addr) {
2523 case 0x3c0:
2524 if (s->ar_flip_flop == 0) {
2525 val = s->ar_index;
2526 } else {
2527 val = 0;
2528 }
2529 break;
2530 case 0x3c1:
2531 index = s->ar_index & 0x1f;
2532 if (index < 21)
2533 val = s->ar[index];
2534 else
2535 val = 0;
2536 break;
2537 case 0x3c2:
2538 val = s->st00;
2539 break;
2540 case 0x3c4:
2541 val = s->sr_index;
2542 break;
2543 case 0x3c5:
2544 val = cirrus_vga_read_sr(c);
2545 break;
2546 #ifdef DEBUG_VGA_REG
2547 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2548 #endif
2549 break;
2550 case 0x3c6:
2551 val = cirrus_read_hidden_dac(c);
2552 break;
2553 case 0x3c7:
2554 val = s->dac_state;
2555 break;
2556 case 0x3c8:
2557 val = s->dac_write_index;
2558 c->cirrus_hidden_dac_lockindex = 0;
2559 break;
2560 case 0x3c9:
2561 val = cirrus_vga_read_palette(c);
2562 break;
2563 case 0x3ca:
2564 val = s->fcr;
2565 break;
2566 case 0x3cc:
2567 val = s->msr;
2568 break;
2569 case 0x3ce:
2570 val = s->gr_index;
2571 break;
2572 case 0x3cf:
2573 val = cirrus_vga_read_gr(c, s->gr_index);
2574 #ifdef DEBUG_VGA_REG
2575 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2576 #endif
2577 break;
2578 case 0x3b4:
2579 case 0x3d4:
2580 val = s->cr_index;
2581 break;
2582 case 0x3b5:
2583 case 0x3d5:
2584 val = cirrus_vga_read_cr(c, s->cr_index);
2585 #ifdef DEBUG_VGA_REG
2586 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2587 #endif
2588 break;
2589 case 0x3ba:
2590 case 0x3da:
2591 /* just toggle to fool polling */
2592 val = s->st01 = s->retrace(s);
2593 s->ar_flip_flop = 0;
2594 break;
2595 default:
2596 val = 0x00;
2597 break;
2598 }
2599 }
2600 trace_vga_cirrus_read_io(addr, val);
2601 return val;
2602 }
2603
2604 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2605 unsigned size)
2606 {
2607 CirrusVGAState *c = opaque;
2608 VGACommonState *s = &c->vga;
2609 int index;
2610
2611 addr += 0x3b0;
2612
2613 /* check port range access depending on color/monochrome mode */
2614 if (vga_ioport_invalid(s, addr)) {
2615 return;
2616 }
2617 trace_vga_cirrus_write_io(addr, val);
2618
2619 switch (addr) {
2620 case 0x3c0:
2621 if (s->ar_flip_flop == 0) {
2622 val &= 0x3f;
2623 s->ar_index = val;
2624 } else {
2625 index = s->ar_index & 0x1f;
2626 switch (index) {
2627 case 0x00 ... 0x0f:
2628 s->ar[index] = val & 0x3f;
2629 break;
2630 case 0x10:
2631 s->ar[index] = val & ~0x10;
2632 break;
2633 case 0x11:
2634 s->ar[index] = val;
2635 break;
2636 case 0x12:
2637 s->ar[index] = val & ~0xc0;
2638 break;
2639 case 0x13:
2640 s->ar[index] = val & ~0xf0;
2641 break;
2642 case 0x14:
2643 s->ar[index] = val & ~0xf0;
2644 break;
2645 default:
2646 break;
2647 }
2648 }
2649 s->ar_flip_flop ^= 1;
2650 break;
2651 case 0x3c2:
2652 s->msr = val & ~0x10;
2653 s->update_retrace_info(s);
2654 break;
2655 case 0x3c4:
2656 s->sr_index = val;
2657 break;
2658 case 0x3c5:
2659 #ifdef DEBUG_VGA_REG
2660 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val);
2661 #endif
2662 cirrus_vga_write_sr(c, val);
2663 break;
2664 case 0x3c6:
2665 cirrus_write_hidden_dac(c, val);
2666 break;
2667 case 0x3c7:
2668 s->dac_read_index = val;
2669 s->dac_sub_index = 0;
2670 s->dac_state = 3;
2671 break;
2672 case 0x3c8:
2673 s->dac_write_index = val;
2674 s->dac_sub_index = 0;
2675 s->dac_state = 0;
2676 break;
2677 case 0x3c9:
2678 cirrus_vga_write_palette(c, val);
2679 break;
2680 case 0x3ce:
2681 s->gr_index = val;
2682 break;
2683 case 0x3cf:
2684 #ifdef DEBUG_VGA_REG
2685 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val);
2686 #endif
2687 cirrus_vga_write_gr(c, s->gr_index, val);
2688 break;
2689 case 0x3b4:
2690 case 0x3d4:
2691 s->cr_index = val;
2692 break;
2693 case 0x3b5:
2694 case 0x3d5:
2695 #ifdef DEBUG_VGA_REG
2696 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val);
2697 #endif
2698 cirrus_vga_write_cr(c, val);
2699 break;
2700 case 0x3ba:
2701 case 0x3da:
2702 s->fcr = val & 0x10;
2703 break;
2704 }
2705 }
2706
2707 /***************************************
2708 *
2709 * memory-mapped I/O access
2710 *
2711 ***************************************/
2712
2713 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2714 unsigned size)
2715 {
2716 CirrusVGAState *s = opaque;
2717
2718 if (addr >= 0x100) {
2719 return cirrus_mmio_blt_read(s, addr - 0x100);
2720 } else {
2721 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2722 }
2723 }
2724
2725 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2726 uint64_t val, unsigned size)
2727 {
2728 CirrusVGAState *s = opaque;
2729
2730 if (addr >= 0x100) {
2731 cirrus_mmio_blt_write(s, addr - 0x100, val);
2732 } else {
2733 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2734 }
2735 }
2736
2737 static const MemoryRegionOps cirrus_mmio_io_ops = {
2738 .read = cirrus_mmio_read,
2739 .write = cirrus_mmio_write,
2740 .endianness = DEVICE_LITTLE_ENDIAN,
2741 .impl = {
2742 .min_access_size = 1,
2743 .max_access_size = 1,
2744 },
2745 };
2746
2747 /* load/save state */
2748
2749 static int cirrus_post_load(void *opaque, int version_id)
2750 {
2751 CirrusVGAState *s = opaque;
2752
2753 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2754 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2755
2756 cirrus_update_bank_ptr(s, 0);
2757 cirrus_update_bank_ptr(s, 1);
2758 cirrus_update_memory_access(s);
2759 /* force refresh */
2760 s->vga.graphic_mode = -1;
2761
2762 return 0;
2763 }
2764
2765 const VMStateDescription vmstate_cirrus_vga = {
2766 .name = "cirrus_vga",
2767 .version_id = 2,
2768 .minimum_version_id = 1,
2769 .post_load = cirrus_post_load,
2770 .fields = (VMStateField[]) {
2771 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2772 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2773 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2774 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2775 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2776 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2777 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2778 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2779 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2780 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2781 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2782 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2783 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2784 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2785 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2786 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2787 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2788 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2789 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2790 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2791 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2792 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2793 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2794 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2795 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2796 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2797 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
2798 /* XXX: we do not save the bitblt state - we assume we do not save
2799 the state when the blitter is active */
2800 VMSTATE_END_OF_LIST()
2801 }
2802 };
2803
2804 static const VMStateDescription vmstate_pci_cirrus_vga = {
2805 .name = "cirrus_vga",
2806 .version_id = 2,
2807 .minimum_version_id = 2,
2808 .fields = (VMStateField[]) {
2809 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2810 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2811 vmstate_cirrus_vga, CirrusVGAState),
2812 VMSTATE_END_OF_LIST()
2813 }
2814 };
2815
2816 /***************************************
2817 *
2818 * initialize
2819 *
2820 ***************************************/
2821
2822 static void cirrus_reset(void *opaque)
2823 {
2824 CirrusVGAState *s = opaque;
2825
2826 vga_common_reset(&s->vga);
2827 unmap_linear_vram(s);
2828 s->vga.sr[0x06] = 0x0f;
2829 if (s->device_id == CIRRUS_ID_CLGD5446) {
2830 /* 4MB 64 bit memory config, always PCI */
2831 s->vga.sr[0x1F] = 0x2d; // MemClock
2832 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2833 s->vga.sr[0x0f] = 0x98;
2834 s->vga.sr[0x17] = 0x20;
2835 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2836 } else {
2837 s->vga.sr[0x1F] = 0x22; // MemClock
2838 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2839 s->vga.sr[0x17] = s->bustype;
2840 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2841 }
2842 s->vga.cr[0x27] = s->device_id;
2843
2844 s->cirrus_hidden_dac_lockindex = 5;
2845 s->cirrus_hidden_dac_data = 0;
2846 }
2847
2848 static const MemoryRegionOps cirrus_linear_io_ops = {
2849 .read = cirrus_linear_read,
2850 .write = cirrus_linear_write,
2851 .endianness = DEVICE_LITTLE_ENDIAN,
2852 .impl = {
2853 .min_access_size = 1,
2854 .max_access_size = 1,
2855 },
2856 };
2857
2858 static const MemoryRegionOps cirrus_vga_io_ops = {
2859 .read = cirrus_vga_ioport_read,
2860 .write = cirrus_vga_ioport_write,
2861 .endianness = DEVICE_LITTLE_ENDIAN,
2862 .impl = {
2863 .min_access_size = 1,
2864 .max_access_size = 1,
2865 },
2866 };
2867
2868 void cirrus_init_common(CirrusVGAState *s, Object *owner,
2869 int device_id, int is_pci,
2870 MemoryRegion *system_memory, MemoryRegion *system_io)
2871 {
2872 int i;
2873 static int inited;
2874
2875 if (!inited) {
2876 inited = 1;
2877 for(i = 0;i < 256; i++)
2878 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2879 rop_to_index[CIRRUS_ROP_0] = 0;
2880 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2881 rop_to_index[CIRRUS_ROP_NOP] = 2;
2882 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2883 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2884 rop_to_index[CIRRUS_ROP_SRC] = 5;
2885 rop_to_index[CIRRUS_ROP_1] = 6;
2886 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2887 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2888 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2889 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2890 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2891 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2892 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2893 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2894 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2895 s->device_id = device_id;
2896 if (is_pci)
2897 s->bustype = CIRRUS_BUSTYPE_PCI;
2898 else
2899 s->bustype = CIRRUS_BUSTYPE_ISA;
2900 }
2901
2902 /* Register ioport 0x3b0 - 0x3df */
2903 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
2904 "cirrus-io", 0x30);
2905 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
2906 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2907
2908 memory_region_init(&s->low_mem_container, owner,
2909 "cirrus-lowmem-container",
2910 0x20000);
2911
2912 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
2913 "cirrus-low-memory", 0x20000);
2914 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2915 for (i = 0; i < 2; ++i) {
2916 static const char *names[] = { "vga.bank0", "vga.bank1" };
2917 MemoryRegion *bank = &s->cirrus_bank[i];
2918 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2919 0, 0x8000);
2920 memory_region_set_enabled(bank, false);
2921 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2922 bank, 1);
2923 }
2924 memory_region_add_subregion_overlap(system_memory,
2925 0x000a0000,
2926 &s->low_mem_container,
2927 1);
2928 memory_region_set_coalescing(&s->low_mem);
2929
2930 /* I/O handler for LFB */
2931 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
2932 "cirrus-linear-io", s->vga.vram_size_mb * MiB);
2933 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2934
2935 /* I/O handler for LFB */
2936 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
2937 &cirrus_linear_bitblt_io_ops,
2938 s,
2939 "cirrus-bitblt-mmio",
2940 0x400000);
2941 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2942
2943 /* I/O handler for memory-mapped I/O */
2944 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
2945 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2946 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2947
2948 s->real_vram_size =
2949 (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB;
2950
2951 /* XXX: s->vga.vram_size must be a power of two */
2952 s->cirrus_addr_mask = s->real_vram_size - 1;
2953 s->linear_mmio_mask = s->real_vram_size - 256;
2954
2955 s->vga.get_bpp = cirrus_get_bpp;
2956 s->vga.get_offsets = cirrus_get_offsets;
2957 s->vga.get_resolution = cirrus_get_resolution;
2958 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2959 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2960
2961 qemu_register_reset(cirrus_reset, s);
2962 }
2963
2964 /***************************************
2965 *
2966 * PCI bus support
2967 *
2968 ***************************************/
2969
2970 static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
2971 {
2972 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev);
2973 CirrusVGAState *s = &d->cirrus_vga;
2974 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2975 int16_t device_id = pc->device_id;
2976
2977 /* follow real hardware, cirrus card emulated has 4 MB video memory.
2978 Also accept 8 MB/16 MB for backward compatibility. */
2979 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
2980 s->vga.vram_size_mb != 16) {
2981 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
2982 s->vga.vram_size_mb);
2983 return;
2984 }
2985 /* setup VGA */
2986 vga_common_init(&s->vga, OBJECT(dev));
2987 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
2988 pci_address_space_io(dev));
2989 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
2990
2991 /* setup PCI */
2992
2993 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
2994
2995 /* XXX: add byte swapping apertures */
2996 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2997 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2998 &s->cirrus_linear_bitblt_io);
2999
3000 /* setup memory space */
3001 /* memory #0 LFB */
3002 /* memory #1 memory-mapped I/O */
3003 /* XXX: s->vga.vram_size must be a power of two */
3004 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
3005 if (device_id == CIRRUS_ID_CLGD5446) {
3006 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
3007 }
3008 }
3009
3010 static Property pci_vga_cirrus_properties[] = {
3011 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
3012 cirrus_vga.vga.vram_size_mb, 4),
3013 DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState,
3014 cirrus_vga.enable_blitter, true),
3015 DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState,
3016 cirrus_vga.vga.global_vmstate, false),
3017 DEFINE_PROP_END_OF_LIST(),
3018 };
3019
3020 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
3021 {
3022 DeviceClass *dc = DEVICE_CLASS(klass);
3023 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
3024
3025 k->realize = pci_cirrus_vga_realize;
3026 k->romfile = VGABIOS_CIRRUS_FILENAME;
3027 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3028 k->device_id = CIRRUS_ID_CLGD5446;
3029 k->class_id = PCI_CLASS_DISPLAY_VGA;
3030 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
3031 dc->desc = "Cirrus CLGD 54xx VGA";
3032 dc->vmsd = &vmstate_pci_cirrus_vga;
3033 dc->props = pci_vga_cirrus_properties;
3034 dc->hotpluggable = false;
3035 }
3036
3037 static const TypeInfo cirrus_vga_info = {
3038 .name = TYPE_PCI_CIRRUS_VGA,
3039 .parent = TYPE_PCI_DEVICE,
3040 .instance_size = sizeof(PCICirrusVGAState),
3041 .class_init = cirrus_vga_class_init,
3042 .interfaces = (InterfaceInfo[]) {
3043 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
3044 { },
3045 },
3046 };
3047
3048 static void cirrus_vga_register_types(void)
3049 {
3050 type_register_static(&cirrus_vga_info);
3051 }
3052
3053 type_init(cirrus_vga_register_types)
AR7 emulation for QEMU