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Merge remote-tracking branch 'remotes/armbru/tags/pull-build-2019-07-02-v2' into...
[qemu/ar7.git] / hw / display / cirrus_vga.c
blob2e4911a1e321d7b845cfabc8782e6c84e97238e7
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 "qapi/error.h"
39 #include "trace.h"
40 #include "hw/hw.h"
41 #include "hw/pci/pci.h"
42 #include "ui/pixel_ops.h"
43 #include "cirrus_vga_internal.h"
44
45 /*
46 * TODO:
47 * - destination write mask support not complete (bits 5..7)
48 * - optimize linear mappings
49 * - optimize bitblt functions
50 */
51
52 //#define DEBUG_CIRRUS
53 //#define DEBUG_BITBLT
54
55 /***************************************
56 *
57 * definitions
58 *
59 ***************************************/
60
61 // sequencer 0x07
62 #define CIRRUS_SR7_BPP_VGA 0x00
63 #define CIRRUS_SR7_BPP_SVGA 0x01
64 #define CIRRUS_SR7_BPP_MASK 0x0e
65 #define CIRRUS_SR7_BPP_8 0x00
66 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
67 #define CIRRUS_SR7_BPP_24 0x04
68 #define CIRRUS_SR7_BPP_16 0x06
69 #define CIRRUS_SR7_BPP_32 0x08
70 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
71
72 // sequencer 0x0f
73 #define CIRRUS_MEMSIZE_512k 0x08
74 #define CIRRUS_MEMSIZE_1M 0x10
75 #define CIRRUS_MEMSIZE_2M 0x18
76 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
77
78 // sequencer 0x12
79 #define CIRRUS_CURSOR_SHOW 0x01
80 #define CIRRUS_CURSOR_HIDDENPEL 0x02
81 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
82
83 // sequencer 0x17
84 #define CIRRUS_BUSTYPE_VLBFAST 0x10
85 #define CIRRUS_BUSTYPE_PCI 0x20
86 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
87 #define CIRRUS_BUSTYPE_ISA 0x38
88 #define CIRRUS_MMIO_ENABLE 0x04
89 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
90 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
91
92 // control 0x0b
93 #define CIRRUS_BANKING_DUAL 0x01
94 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
95
96 // control 0x30
97 #define CIRRUS_BLTMODE_BACKWARDS 0x01
98 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
99 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
100 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
101 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
102 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
103 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
104 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
105 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
106 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
107 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
108
109 // control 0x31
110 #define CIRRUS_BLT_BUSY 0x01
111 #define CIRRUS_BLT_START 0x02
112 #define CIRRUS_BLT_RESET 0x04
113 #define CIRRUS_BLT_FIFOUSED 0x10
114 #define CIRRUS_BLT_AUTOSTART 0x80
115
116 // control 0x32
117 #define CIRRUS_ROP_0 0x00
118 #define CIRRUS_ROP_SRC_AND_DST 0x05
119 #define CIRRUS_ROP_NOP 0x06
120 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
121 #define CIRRUS_ROP_NOTDST 0x0b
122 #define CIRRUS_ROP_SRC 0x0d
123 #define CIRRUS_ROP_1 0x0e
124 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
125 #define CIRRUS_ROP_SRC_XOR_DST 0x59
126 #define CIRRUS_ROP_SRC_OR_DST 0x6d
127 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
128 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
129 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
130 #define CIRRUS_ROP_NOTSRC 0xd0
131 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
132 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
133
134 #define CIRRUS_ROP_NOP_INDEX 2
135 #define CIRRUS_ROP_SRC_INDEX 5
136
137 // control 0x33
138 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
139 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
140 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
141
142 // memory-mapped IO
143 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
144 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
145 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
146 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
147 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
148 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
149 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
150 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
151 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
152 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
153 #define CIRRUS_MMIO_BLTROP 0x1a // byte
154 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
155 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
156 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
157 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
158 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
159 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
160 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
161 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
162 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
165 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
166 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
167 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
168 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
169 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
170 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
171 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
172
173 #define CIRRUS_PNPMMIO_SIZE 0x1000
174
175 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
176 uint32_t dstaddr, int dst_pitch,
177 int width, int height);
178
179 typedef struct PCICirrusVGAState {
180 PCIDevice dev;
181 CirrusVGAState cirrus_vga;
182 } PCICirrusVGAState;
183
184 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
185 #define PCI_CIRRUS_VGA(obj) \
186 OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA)
187
188 static uint8_t rop_to_index[256];
189
190 /***************************************
191 *
192 * prototypes.
193 *
194 ***************************************/
195
196
197 static void cirrus_bitblt_reset(CirrusVGAState *s);
198 static void cirrus_update_memory_access(CirrusVGAState *s);
199
200 /***************************************
201 *
202 * raster operations
203 *
204 ***************************************/
205
206 static bool blit_region_is_unsafe(struct CirrusVGAState *s,
207 int32_t pitch, int32_t addr)
208 {
209 if (!pitch) {
210 return true;
211 }
212 if (pitch < 0) {
213 int64_t min = addr
214 + ((int64_t)s->cirrus_blt_height - 1) * pitch
215 - s->cirrus_blt_width;
216 if (min < -1 || addr >= s->vga.vram_size) {
217 return true;
218 }
219 } else {
220 int64_t max = addr
221 + ((int64_t)s->cirrus_blt_height-1) * pitch
222 + s->cirrus_blt_width;
223 if (max > s->vga.vram_size) {
224 return true;
225 }
226 }
227 return false;
228 }
229
230 static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only)
231 {
232 /* should be the case, see cirrus_bitblt_start */
233 assert(s->cirrus_blt_width > 0);
234 assert(s->cirrus_blt_height > 0);
235
236 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
237 return true;
238 }
239
240 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
241 s->cirrus_blt_dstaddr)) {
242 return true;
243 }
244 if (dst_only) {
245 return false;
246 }
247 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
248 s->cirrus_blt_srcaddr)) {
249 return true;
250 }
251
252 return false;
253 }
254
255 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
256 uint32_t dstaddr, uint32_t srcaddr,
257 int dstpitch,int srcpitch,
258 int bltwidth,int bltheight)
259 {
260 }
261
262 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
263 uint32_t dstaddr,
264 int dstpitch, int bltwidth,int bltheight)
265 {
266 }
267
268 static inline uint8_t cirrus_src(CirrusVGAState *s, uint32_t srcaddr)
269 {
270 if (s->cirrus_srccounter) {
271 /* cputovideo */
272 return s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1)];
273 } else {
274 /* videotovideo */
275 return s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask];
276 }
277 }
278
279 static inline uint16_t cirrus_src16(CirrusVGAState *s, uint32_t srcaddr)
280 {
281 uint16_t *src;
282
283 if (s->cirrus_srccounter) {
284 /* cputovideo */
285 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~1];
286 } else {
287 /* videotovideo */
288 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~1];
289 }
290 return *src;
291 }
292
293 static inline uint32_t cirrus_src32(CirrusVGAState *s, uint32_t srcaddr)
294 {
295 uint32_t *src;
296
297 if (s->cirrus_srccounter) {
298 /* cputovideo */
299 src = (void *)&s->cirrus_bltbuf[srcaddr & (CIRRUS_BLTBUFSIZE - 1) & ~3];
300 } else {
301 /* videotovideo */
302 src = (void *)&s->vga.vram_ptr[srcaddr & s->cirrus_addr_mask & ~3];
303 }
304 return *src;
305 }
306
307 #define ROP_NAME 0
308 #define ROP_FN(d, s) 0
309 #include "cirrus_vga_rop.h"
310
311 #define ROP_NAME src_and_dst
312 #define ROP_FN(d, s) (s) & (d)
313 #include "cirrus_vga_rop.h"
314
315 #define ROP_NAME src_and_notdst
316 #define ROP_FN(d, s) (s) & (~(d))
317 #include "cirrus_vga_rop.h"
318
319 #define ROP_NAME notdst
320 #define ROP_FN(d, s) ~(d)
321 #include "cirrus_vga_rop.h"
322
323 #define ROP_NAME src
324 #define ROP_FN(d, s) s
325 #include "cirrus_vga_rop.h"
326
327 #define ROP_NAME 1
328 #define ROP_FN(d, s) ~0
329 #include "cirrus_vga_rop.h"
330
331 #define ROP_NAME notsrc_and_dst
332 #define ROP_FN(d, s) (~(s)) & (d)
333 #include "cirrus_vga_rop.h"
334
335 #define ROP_NAME src_xor_dst
336 #define ROP_FN(d, s) (s) ^ (d)
337 #include "cirrus_vga_rop.h"
338
339 #define ROP_NAME src_or_dst
340 #define ROP_FN(d, s) (s) | (d)
341 #include "cirrus_vga_rop.h"
342
343 #define ROP_NAME notsrc_or_notdst
344 #define ROP_FN(d, s) (~(s)) | (~(d))
345 #include "cirrus_vga_rop.h"
346
347 #define ROP_NAME src_notxor_dst
348 #define ROP_FN(d, s) ~((s) ^ (d))
349 #include "cirrus_vga_rop.h"
350
351 #define ROP_NAME src_or_notdst
352 #define ROP_FN(d, s) (s) | (~(d))
353 #include "cirrus_vga_rop.h"
354
355 #define ROP_NAME notsrc
356 #define ROP_FN(d, s) (~(s))
357 #include "cirrus_vga_rop.h"
358
359 #define ROP_NAME notsrc_or_dst
360 #define ROP_FN(d, s) (~(s)) | (d)
361 #include "cirrus_vga_rop.h"
362
363 #define ROP_NAME notsrc_and_notdst
364 #define ROP_FN(d, s) (~(s)) & (~(d))
365 #include "cirrus_vga_rop.h"
366
367 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
368 cirrus_bitblt_rop_fwd_0,
369 cirrus_bitblt_rop_fwd_src_and_dst,
370 cirrus_bitblt_rop_nop,
371 cirrus_bitblt_rop_fwd_src_and_notdst,
372 cirrus_bitblt_rop_fwd_notdst,
373 cirrus_bitblt_rop_fwd_src,
374 cirrus_bitblt_rop_fwd_1,
375 cirrus_bitblt_rop_fwd_notsrc_and_dst,
376 cirrus_bitblt_rop_fwd_src_xor_dst,
377 cirrus_bitblt_rop_fwd_src_or_dst,
378 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
379 cirrus_bitblt_rop_fwd_src_notxor_dst,
380 cirrus_bitblt_rop_fwd_src_or_notdst,
381 cirrus_bitblt_rop_fwd_notsrc,
382 cirrus_bitblt_rop_fwd_notsrc_or_dst,
383 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
384 };
385
386 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
387 cirrus_bitblt_rop_bkwd_0,
388 cirrus_bitblt_rop_bkwd_src_and_dst,
389 cirrus_bitblt_rop_nop,
390 cirrus_bitblt_rop_bkwd_src_and_notdst,
391 cirrus_bitblt_rop_bkwd_notdst,
392 cirrus_bitblt_rop_bkwd_src,
393 cirrus_bitblt_rop_bkwd_1,
394 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
395 cirrus_bitblt_rop_bkwd_src_xor_dst,
396 cirrus_bitblt_rop_bkwd_src_or_dst,
397 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
398 cirrus_bitblt_rop_bkwd_src_notxor_dst,
399 cirrus_bitblt_rop_bkwd_src_or_notdst,
400 cirrus_bitblt_rop_bkwd_notsrc,
401 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
402 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
403 };
404
405 #define TRANSP_ROP(name) {\
406 name ## _8,\
407 name ## _16,\
408 }
409 #define TRANSP_NOP(func) {\
410 func,\
411 func,\
412 }
413
414 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
415 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
416 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
417 TRANSP_NOP(cirrus_bitblt_rop_nop),
418 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
419 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
420 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
421 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
422 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
423 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
424 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
426 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
427 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
431 };
432
433 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
434 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
435 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
436 TRANSP_NOP(cirrus_bitblt_rop_nop),
437 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
438 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
439 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
440 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
441 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
442 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
443 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
445 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
450 };
451
452 #define ROP2(name) {\
453 name ## _8,\
454 name ## _16,\
455 name ## _24,\
456 name ## _32,\
457 }
458
459 #define ROP_NOP2(func) {\
460 func,\
461 func,\
462 func,\
463 func,\
464 }
465
466 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
467 ROP2(cirrus_patternfill_0),
468 ROP2(cirrus_patternfill_src_and_dst),
469 ROP_NOP2(cirrus_bitblt_rop_nop),
470 ROP2(cirrus_patternfill_src_and_notdst),
471 ROP2(cirrus_patternfill_notdst),
472 ROP2(cirrus_patternfill_src),
473 ROP2(cirrus_patternfill_1),
474 ROP2(cirrus_patternfill_notsrc_and_dst),
475 ROP2(cirrus_patternfill_src_xor_dst),
476 ROP2(cirrus_patternfill_src_or_dst),
477 ROP2(cirrus_patternfill_notsrc_or_notdst),
478 ROP2(cirrus_patternfill_src_notxor_dst),
479 ROP2(cirrus_patternfill_src_or_notdst),
480 ROP2(cirrus_patternfill_notsrc),
481 ROP2(cirrus_patternfill_notsrc_or_dst),
482 ROP2(cirrus_patternfill_notsrc_and_notdst),
483 };
484
485 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
486 ROP2(cirrus_colorexpand_transp_0),
487 ROP2(cirrus_colorexpand_transp_src_and_dst),
488 ROP_NOP2(cirrus_bitblt_rop_nop),
489 ROP2(cirrus_colorexpand_transp_src_and_notdst),
490 ROP2(cirrus_colorexpand_transp_notdst),
491 ROP2(cirrus_colorexpand_transp_src),
492 ROP2(cirrus_colorexpand_transp_1),
493 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
494 ROP2(cirrus_colorexpand_transp_src_xor_dst),
495 ROP2(cirrus_colorexpand_transp_src_or_dst),
496 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
497 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
498 ROP2(cirrus_colorexpand_transp_src_or_notdst),
499 ROP2(cirrus_colorexpand_transp_notsrc),
500 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
501 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
502 };
503
504 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
505 ROP2(cirrus_colorexpand_0),
506 ROP2(cirrus_colorexpand_src_and_dst),
507 ROP_NOP2(cirrus_bitblt_rop_nop),
508 ROP2(cirrus_colorexpand_src_and_notdst),
509 ROP2(cirrus_colorexpand_notdst),
510 ROP2(cirrus_colorexpand_src),
511 ROP2(cirrus_colorexpand_1),
512 ROP2(cirrus_colorexpand_notsrc_and_dst),
513 ROP2(cirrus_colorexpand_src_xor_dst),
514 ROP2(cirrus_colorexpand_src_or_dst),
515 ROP2(cirrus_colorexpand_notsrc_or_notdst),
516 ROP2(cirrus_colorexpand_src_notxor_dst),
517 ROP2(cirrus_colorexpand_src_or_notdst),
518 ROP2(cirrus_colorexpand_notsrc),
519 ROP2(cirrus_colorexpand_notsrc_or_dst),
520 ROP2(cirrus_colorexpand_notsrc_and_notdst),
521 };
522
523 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
524 ROP2(cirrus_colorexpand_pattern_transp_0),
525 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
526 ROP_NOP2(cirrus_bitblt_rop_nop),
527 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
528 ROP2(cirrus_colorexpand_pattern_transp_notdst),
529 ROP2(cirrus_colorexpand_pattern_transp_src),
530 ROP2(cirrus_colorexpand_pattern_transp_1),
531 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
532 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
533 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
534 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
535 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
536 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
537 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
538 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
539 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
540 };
541
542 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
543 ROP2(cirrus_colorexpand_pattern_0),
544 ROP2(cirrus_colorexpand_pattern_src_and_dst),
545 ROP_NOP2(cirrus_bitblt_rop_nop),
546 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
547 ROP2(cirrus_colorexpand_pattern_notdst),
548 ROP2(cirrus_colorexpand_pattern_src),
549 ROP2(cirrus_colorexpand_pattern_1),
550 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
551 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
552 ROP2(cirrus_colorexpand_pattern_src_or_dst),
553 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
554 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
555 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
556 ROP2(cirrus_colorexpand_pattern_notsrc),
557 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
558 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
559 };
560
561 static const cirrus_fill_t cirrus_fill[16][4] = {
562 ROP2(cirrus_fill_0),
563 ROP2(cirrus_fill_src_and_dst),
564 ROP_NOP2(cirrus_bitblt_fill_nop),
565 ROP2(cirrus_fill_src_and_notdst),
566 ROP2(cirrus_fill_notdst),
567 ROP2(cirrus_fill_src),
568 ROP2(cirrus_fill_1),
569 ROP2(cirrus_fill_notsrc_and_dst),
570 ROP2(cirrus_fill_src_xor_dst),
571 ROP2(cirrus_fill_src_or_dst),
572 ROP2(cirrus_fill_notsrc_or_notdst),
573 ROP2(cirrus_fill_src_notxor_dst),
574 ROP2(cirrus_fill_src_or_notdst),
575 ROP2(cirrus_fill_notsrc),
576 ROP2(cirrus_fill_notsrc_or_dst),
577 ROP2(cirrus_fill_notsrc_and_notdst),
578 };
579
580 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
581 {
582 unsigned int color;
583 switch (s->cirrus_blt_pixelwidth) {
584 case 1:
585 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
586 break;
587 case 2:
588 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
589 s->cirrus_blt_fgcol = le16_to_cpu(color);
590 break;
591 case 3:
592 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
593 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
594 break;
595 default:
596 case 4:
597 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
598 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
599 s->cirrus_blt_fgcol = le32_to_cpu(color);
600 break;
601 }
602 }
603
604 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
605 {
606 unsigned int color;
607 switch (s->cirrus_blt_pixelwidth) {
608 case 1:
609 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
610 break;
611 case 2:
612 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
613 s->cirrus_blt_bgcol = le16_to_cpu(color);
614 break;
615 case 3:
616 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
617 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
618 break;
619 default:
620 case 4:
621 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
622 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
623 s->cirrus_blt_bgcol = le32_to_cpu(color);
624 break;
625 }
626 }
627
628 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
629 int off_pitch, int bytesperline,
630 int lines)
631 {
632 int y;
633 int off_cur;
634 int off_cur_end;
635
636 if (off_pitch < 0) {
637 off_begin -= bytesperline - 1;
638 }
639
640 for (y = 0; y < lines; y++) {
641 off_cur = off_begin;
642 off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1;
643 assert(off_cur_end >= off_cur);
644 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
645 off_begin += off_pitch;
646 }
647 }
648
649 static int cirrus_bitblt_common_patterncopy(CirrusVGAState *s)
650 {
651 uint32_t patternsize;
652 bool videosrc = !s->cirrus_srccounter;
653
654 if (videosrc) {
655 switch (s->vga.get_bpp(&s->vga)) {
656 case 8:
657 patternsize = 64;
658 break;
659 case 15:
660 case 16:
661 patternsize = 128;
662 break;
663 case 24:
664 case 32:
665 default:
666 patternsize = 256;
667 break;
668 }
669 s->cirrus_blt_srcaddr &= ~(patternsize - 1);
670 if (s->cirrus_blt_srcaddr + patternsize > s->vga.vram_size) {
671 return 0;
672 }
673 }
674
675 if (blit_is_unsafe(s, true)) {
676 return 0;
677 }
678
679 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
680 videosrc ? s->cirrus_blt_srcaddr : 0,
681 s->cirrus_blt_dstpitch, 0,
682 s->cirrus_blt_width, s->cirrus_blt_height);
683 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
684 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
685 s->cirrus_blt_height);
686 return 1;
687 }
688
689 /* fill */
690
691 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
692 {
693 cirrus_fill_t rop_func;
694
695 if (blit_is_unsafe(s, true)) {
696 return 0;
697 }
698 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
699 rop_func(s, s->cirrus_blt_dstaddr,
700 s->cirrus_blt_dstpitch,
701 s->cirrus_blt_width, s->cirrus_blt_height);
702 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
703 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
704 s->cirrus_blt_height);
705 cirrus_bitblt_reset(s);
706 return 1;
707 }
708
709 /***************************************
710 *
711 * bitblt (video-to-video)
712 *
713 ***************************************/
714
715 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
716 {
717 return cirrus_bitblt_common_patterncopy(s);
718 }
719
720 static int cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
721 {
722 int sx = 0, sy = 0;
723 int dx = 0, dy = 0;
724 int depth = 0;
725 int notify = 0;
726
727 /* make sure to only copy if it's a plain copy ROP */
728 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
729 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
730
731 int width, height;
732
733 depth = s->vga.get_bpp(&s->vga) / 8;
734 if (!depth) {
735 return 0;
736 }
737 s->vga.get_resolution(&s->vga, &width, &height);
738
739 /* extra x, y */
740 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
741 sy = (src / ABS(s->cirrus_blt_srcpitch));
742 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
743 dy = (dst / ABS(s->cirrus_blt_dstpitch));
744
745 /* normalize width */
746 w /= depth;
747
748 /* if we're doing a backward copy, we have to adjust
749 our x/y to be the upper left corner (instead of the lower
750 right corner) */
751 if (s->cirrus_blt_dstpitch < 0) {
752 sx -= (s->cirrus_blt_width / depth) - 1;
753 dx -= (s->cirrus_blt_width / depth) - 1;
754 sy -= s->cirrus_blt_height - 1;
755 dy -= s->cirrus_blt_height - 1;
756 }
757
758 /* are we in the visible portion of memory? */
759 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
760 (sx + w) <= width && (sy + h) <= height &&
761 (dx + w) <= width && (dy + h) <= height) {
762 notify = 1;
763 }
764 }
765
766 (*s->cirrus_rop) (s, s->cirrus_blt_dstaddr,
767 s->cirrus_blt_srcaddr,
768 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
769 s->cirrus_blt_width, s->cirrus_blt_height);
770
771 if (notify) {
772 dpy_gfx_update(s->vga.con, dx, dy,
773 s->cirrus_blt_width / depth,
774 s->cirrus_blt_height);
775 }
776
777 /* we don't have to notify the display that this portion has
778 changed since qemu_console_copy implies this */
779
780 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
781 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
782 s->cirrus_blt_height);
783
784 return 1;
785 }
786
787 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
788 {
789 if (blit_is_unsafe(s, false))
790 return 0;
791
792 return cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
793 s->cirrus_blt_srcaddr - s->vga.start_addr,
794 s->cirrus_blt_width, s->cirrus_blt_height);
795 }
796
797 /***************************************
798 *
799 * bitblt (cpu-to-video)
800 *
801 ***************************************/
802
803 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
804 {
805 int copy_count;
806 uint8_t *end_ptr;
807
808 if (s->cirrus_srccounter > 0) {
809 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
810 cirrus_bitblt_common_patterncopy(s);
811 the_end:
812 s->cirrus_srccounter = 0;
813 cirrus_bitblt_reset(s);
814 } else {
815 /* at least one scan line */
816 do {
817 (*s->cirrus_rop)(s, s->cirrus_blt_dstaddr,
818 0, 0, 0, s->cirrus_blt_width, 1);
819 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
820 s->cirrus_blt_width, 1);
821 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
822 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
823 if (s->cirrus_srccounter <= 0)
824 goto the_end;
825 /* more bytes than needed can be transferred because of
826 word alignment, so we keep them for the next line */
827 /* XXX: keep alignment to speed up transfer */
828 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
829 copy_count = s->cirrus_srcptr_end - end_ptr;
830 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
831 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
832 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
833 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
834 }
835 }
836 }
837
838 /***************************************
839 *
840 * bitblt wrapper
841 *
842 ***************************************/
843
844 static void cirrus_bitblt_reset(CirrusVGAState * s)
845 {
846 int need_update;
847
848 s->vga.gr[0x31] &=
849 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
850 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
851 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
852 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
853 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
854 s->cirrus_srccounter = 0;
855 if (!need_update)
856 return;
857 cirrus_update_memory_access(s);
858 }
859
860 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
861 {
862 int w;
863
864 if (blit_is_unsafe(s, true)) {
865 return 0;
866 }
867
868 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
869 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
870 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
871
872 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
873 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
874 s->cirrus_blt_srcpitch = 8;
875 } else {
876 /* XXX: check for 24 bpp */
877 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
878 }
879 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
880 } else {
881 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
882 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
883 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
884 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
885 else
886 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
887 } else {
888 /* always align input size to 32 bits */
889 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
890 }
891 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
892 }
893
894 /* the blit_is_unsafe call above should catch this */
895 assert(s->cirrus_blt_srcpitch <= CIRRUS_BLTBUFSIZE);
896
897 s->cirrus_srcptr = s->cirrus_bltbuf;
898 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
899 cirrus_update_memory_access(s);
900 return 1;
901 }
902
903 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
904 {
905 /* XXX */
906 #ifdef DEBUG_BITBLT
907 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
908 #endif
909 return 0;
910 }
911
912 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
913 {
914 int ret;
915
916 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
917 ret = cirrus_bitblt_videotovideo_patterncopy(s);
918 } else {
919 ret = cirrus_bitblt_videotovideo_copy(s);
920 }
921 if (ret)
922 cirrus_bitblt_reset(s);
923 return ret;
924 }
925
926 static void cirrus_bitblt_start(CirrusVGAState * s)
927 {
928 uint8_t blt_rop;
929
930 if (!s->enable_blitter) {
931 goto bitblt_ignore;
932 }
933
934 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
935
936 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
937 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
938 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
939 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
940 s->cirrus_blt_dstaddr =
941 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
942 s->cirrus_blt_srcaddr =
943 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
944 s->cirrus_blt_mode = s->vga.gr[0x30];
945 s->cirrus_blt_modeext = s->vga.gr[0x33];
946 blt_rop = s->vga.gr[0x32];
947
948 s->cirrus_blt_dstaddr &= s->cirrus_addr_mask;
949 s->cirrus_blt_srcaddr &= s->cirrus_addr_mask;
950
951 #ifdef DEBUG_BITBLT
952 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",
953 blt_rop,
954 s->cirrus_blt_mode,
955 s->cirrus_blt_modeext,
956 s->cirrus_blt_width,
957 s->cirrus_blt_height,
958 s->cirrus_blt_dstpitch,
959 s->cirrus_blt_srcpitch,
960 s->cirrus_blt_dstaddr,
961 s->cirrus_blt_srcaddr,
962 s->vga.gr[0x2f]);
963 #endif
964
965 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
966 case CIRRUS_BLTMODE_PIXELWIDTH8:
967 s->cirrus_blt_pixelwidth = 1;
968 break;
969 case CIRRUS_BLTMODE_PIXELWIDTH16:
970 s->cirrus_blt_pixelwidth = 2;
971 break;
972 case CIRRUS_BLTMODE_PIXELWIDTH24:
973 s->cirrus_blt_pixelwidth = 3;
974 break;
975 case CIRRUS_BLTMODE_PIXELWIDTH32:
976 s->cirrus_blt_pixelwidth = 4;
977 break;
978 default:
979 #ifdef DEBUG_BITBLT
980 printf("cirrus: bitblt - pixel width is unknown\n");
981 #endif
982 goto bitblt_ignore;
983 }
984 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
985
986 if ((s->
987 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
988 CIRRUS_BLTMODE_MEMSYSDEST))
989 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
990 #ifdef DEBUG_BITBLT
991 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
992 #endif
993 goto bitblt_ignore;
994 }
995
996 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
997 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
998 CIRRUS_BLTMODE_TRANSPARENTCOMP |
999 CIRRUS_BLTMODE_PATTERNCOPY |
1000 CIRRUS_BLTMODE_COLOREXPAND)) ==
1001 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
1002 cirrus_bitblt_fgcol(s);
1003 cirrus_bitblt_solidfill(s, blt_rop);
1004 } else {
1005 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
1006 CIRRUS_BLTMODE_PATTERNCOPY)) ==
1007 CIRRUS_BLTMODE_COLOREXPAND) {
1008
1009 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1010 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1011 cirrus_bitblt_bgcol(s);
1012 else
1013 cirrus_bitblt_fgcol(s);
1014 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1015 } else {
1016 cirrus_bitblt_fgcol(s);
1017 cirrus_bitblt_bgcol(s);
1018 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1019 }
1020 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1021 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1022 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1023 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1024 cirrus_bitblt_bgcol(s);
1025 else
1026 cirrus_bitblt_fgcol(s);
1027 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1028 } else {
1029 cirrus_bitblt_fgcol(s);
1030 cirrus_bitblt_bgcol(s);
1031 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1032 }
1033 } else {
1034 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1035 }
1036 } else {
1037 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1038 if (s->cirrus_blt_pixelwidth > 2) {
1039 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1040 goto bitblt_ignore;
1041 }
1042 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1043 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1044 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1045 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1046 } else {
1047 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1048 }
1049 } else {
1050 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1051 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1052 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1053 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1054 } else {
1055 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1056 }
1057 }
1058 }
1059 // setup bitblt engine.
1060 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1061 if (!cirrus_bitblt_cputovideo(s))
1062 goto bitblt_ignore;
1063 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1064 if (!cirrus_bitblt_videotocpu(s))
1065 goto bitblt_ignore;
1066 } else {
1067 if (!cirrus_bitblt_videotovideo(s))
1068 goto bitblt_ignore;
1069 }
1070 }
1071 return;
1072 bitblt_ignore:;
1073 cirrus_bitblt_reset(s);
1074 }
1075
1076 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1077 {
1078 unsigned old_value;
1079
1080 old_value = s->vga.gr[0x31];
1081 s->vga.gr[0x31] = reg_value;
1082
1083 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1084 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1085 cirrus_bitblt_reset(s);
1086 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1087 ((reg_value & CIRRUS_BLT_START) != 0)) {
1088 cirrus_bitblt_start(s);
1089 }
1090 }
1091
1092
1093 /***************************************
1094 *
1095 * basic parameters
1096 *
1097 ***************************************/
1098
1099 static void cirrus_get_offsets(VGACommonState *s1,
1100 uint32_t *pline_offset,
1101 uint32_t *pstart_addr,
1102 uint32_t *pline_compare)
1103 {
1104 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1105 uint32_t start_addr, line_offset, line_compare;
1106
1107 line_offset = s->vga.cr[0x13]
1108 | ((s->vga.cr[0x1b] & 0x10) << 4);
1109 line_offset <<= 3;
1110 *pline_offset = line_offset;
1111
1112 start_addr = (s->vga.cr[0x0c] << 8)
1113 | s->vga.cr[0x0d]
1114 | ((s->vga.cr[0x1b] & 0x01) << 16)
1115 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1116 | ((s->vga.cr[0x1d] & 0x80) << 12);
1117 *pstart_addr = start_addr;
1118
1119 line_compare = s->vga.cr[0x18] |
1120 ((s->vga.cr[0x07] & 0x10) << 4) |
1121 ((s->vga.cr[0x09] & 0x40) << 3);
1122 *pline_compare = line_compare;
1123 }
1124
1125 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1126 {
1127 uint32_t ret = 16;
1128
1129 switch (s->cirrus_hidden_dac_data & 0xf) {
1130 case 0:
1131 ret = 15;
1132 break; /* Sierra HiColor */
1133 case 1:
1134 ret = 16;
1135 break; /* XGA HiColor */
1136 default:
1137 #ifdef DEBUG_CIRRUS
1138 printf("cirrus: invalid DAC value %x in 16bpp\n",
1139 (s->cirrus_hidden_dac_data & 0xf));
1140 #endif
1141 ret = 15; /* XXX */
1142 break;
1143 }
1144 return ret;
1145 }
1146
1147 static int cirrus_get_bpp(VGACommonState *s1)
1148 {
1149 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1150 uint32_t ret = 8;
1151
1152 if ((s->vga.sr[0x07] & 0x01) != 0) {
1153 /* Cirrus SVGA */
1154 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1155 case CIRRUS_SR7_BPP_8:
1156 ret = 8;
1157 break;
1158 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1159 ret = cirrus_get_bpp16_depth(s);
1160 break;
1161 case CIRRUS_SR7_BPP_24:
1162 ret = 24;
1163 break;
1164 case CIRRUS_SR7_BPP_16:
1165 ret = cirrus_get_bpp16_depth(s);
1166 break;
1167 case CIRRUS_SR7_BPP_32:
1168 ret = 32;
1169 break;
1170 default:
1171 #ifdef DEBUG_CIRRUS
1172 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1173 #endif
1174 ret = 8;
1175 break;
1176 }
1177 } else {
1178 /* VGA */
1179 ret = 0;
1180 }
1181
1182 return ret;
1183 }
1184
1185 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1186 {
1187 int width, height;
1188
1189 width = (s->cr[0x01] + 1) * 8;
1190 height = s->cr[0x12] |
1191 ((s->cr[0x07] & 0x02) << 7) |
1192 ((s->cr[0x07] & 0x40) << 3);
1193 height = (height + 1);
1194 /* interlace support */
1195 if (s->cr[0x1a] & 0x01)
1196 height = height * 2;
1197 *pwidth = width;
1198 *pheight = height;
1199 }
1200
1201 /***************************************
1202 *
1203 * bank memory
1204 *
1205 ***************************************/
1206
1207 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1208 {
1209 unsigned offset;
1210 unsigned limit;
1211
1212 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1213 offset = s->vga.gr[0x09 + bank_index];
1214 else /* single bank */
1215 offset = s->vga.gr[0x09];
1216
1217 if ((s->vga.gr[0x0b] & 0x20) != 0)
1218 offset <<= 14;
1219 else
1220 offset <<= 12;
1221
1222 if (s->real_vram_size <= offset)
1223 limit = 0;
1224 else
1225 limit = s->real_vram_size - offset;
1226
1227 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1228 if (limit > 0x8000) {
1229 offset += 0x8000;
1230 limit -= 0x8000;
1231 } else {
1232 limit = 0;
1233 }
1234 }
1235
1236 if (limit > 0) {
1237 s->cirrus_bank_base[bank_index] = offset;
1238 s->cirrus_bank_limit[bank_index] = limit;
1239 } else {
1240 s->cirrus_bank_base[bank_index] = 0;
1241 s->cirrus_bank_limit[bank_index] = 0;
1242 }
1243 }
1244
1245 /***************************************
1246 *
1247 * I/O access between 0x3c4-0x3c5
1248 *
1249 ***************************************/
1250
1251 static int cirrus_vga_read_sr(CirrusVGAState * s)
1252 {
1253 switch (s->vga.sr_index) {
1254 case 0x00: // Standard VGA
1255 case 0x01: // Standard VGA
1256 case 0x02: // Standard VGA
1257 case 0x03: // Standard VGA
1258 case 0x04: // Standard VGA
1259 return s->vga.sr[s->vga.sr_index];
1260 case 0x06: // Unlock Cirrus extensions
1261 return s->vga.sr[s->vga.sr_index];
1262 case 0x10:
1263 case 0x30:
1264 case 0x50:
1265 case 0x70: // Graphics Cursor X
1266 case 0x90:
1267 case 0xb0:
1268 case 0xd0:
1269 case 0xf0: // Graphics Cursor X
1270 return s->vga.sr[0x10];
1271 case 0x11:
1272 case 0x31:
1273 case 0x51:
1274 case 0x71: // Graphics Cursor Y
1275 case 0x91:
1276 case 0xb1:
1277 case 0xd1:
1278 case 0xf1: // Graphics Cursor Y
1279 return s->vga.sr[0x11];
1280 case 0x05: // ???
1281 case 0x07: // Extended Sequencer Mode
1282 case 0x08: // EEPROM Control
1283 case 0x09: // Scratch Register 0
1284 case 0x0a: // Scratch Register 1
1285 case 0x0b: // VCLK 0
1286 case 0x0c: // VCLK 1
1287 case 0x0d: // VCLK 2
1288 case 0x0e: // VCLK 3
1289 case 0x0f: // DRAM Control
1290 case 0x12: // Graphics Cursor Attribute
1291 case 0x13: // Graphics Cursor Pattern Address
1292 case 0x14: // Scratch Register 2
1293 case 0x15: // Scratch Register 3
1294 case 0x16: // Performance Tuning Register
1295 case 0x17: // Configuration Readback and Extended Control
1296 case 0x18: // Signature Generator Control
1297 case 0x19: // Signal Generator Result
1298 case 0x1a: // Signal Generator Result
1299 case 0x1b: // VCLK 0 Denominator & Post
1300 case 0x1c: // VCLK 1 Denominator & Post
1301 case 0x1d: // VCLK 2 Denominator & Post
1302 case 0x1e: // VCLK 3 Denominator & Post
1303 case 0x1f: // BIOS Write Enable and MCLK select
1304 #ifdef DEBUG_CIRRUS
1305 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1306 #endif
1307 return s->vga.sr[s->vga.sr_index];
1308 default:
1309 #ifdef DEBUG_CIRRUS
1310 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1311 #endif
1312 return 0xff;
1313 break;
1314 }
1315 }
1316
1317 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1318 {
1319 switch (s->vga.sr_index) {
1320 case 0x00: // Standard VGA
1321 case 0x01: // Standard VGA
1322 case 0x02: // Standard VGA
1323 case 0x03: // Standard VGA
1324 case 0x04: // Standard VGA
1325 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1326 if (s->vga.sr_index == 1)
1327 s->vga.update_retrace_info(&s->vga);
1328 break;
1329 case 0x06: // Unlock Cirrus extensions
1330 val &= 0x17;
1331 if (val == 0x12) {
1332 s->vga.sr[s->vga.sr_index] = 0x12;
1333 } else {
1334 s->vga.sr[s->vga.sr_index] = 0x0f;
1335 }
1336 break;
1337 case 0x10:
1338 case 0x30:
1339 case 0x50:
1340 case 0x70: // Graphics Cursor X
1341 case 0x90:
1342 case 0xb0:
1343 case 0xd0:
1344 case 0xf0: // Graphics Cursor X
1345 s->vga.sr[0x10] = val;
1346 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1347 break;
1348 case 0x11:
1349 case 0x31:
1350 case 0x51:
1351 case 0x71: // Graphics Cursor Y
1352 case 0x91:
1353 case 0xb1:
1354 case 0xd1:
1355 case 0xf1: // Graphics Cursor Y
1356 s->vga.sr[0x11] = val;
1357 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1358 break;
1359 case 0x07: // Extended Sequencer Mode
1360 cirrus_update_memory_access(s);
1361 /* fall through */
1362 case 0x08: // EEPROM Control
1363 case 0x09: // Scratch Register 0
1364 case 0x0a: // Scratch Register 1
1365 case 0x0b: // VCLK 0
1366 case 0x0c: // VCLK 1
1367 case 0x0d: // VCLK 2
1368 case 0x0e: // VCLK 3
1369 case 0x0f: // DRAM Control
1370 case 0x13: // Graphics Cursor Pattern Address
1371 case 0x14: // Scratch Register 2
1372 case 0x15: // Scratch Register 3
1373 case 0x16: // Performance Tuning Register
1374 case 0x18: // Signature Generator Control
1375 case 0x19: // Signature Generator Result
1376 case 0x1a: // Signature Generator Result
1377 case 0x1b: // VCLK 0 Denominator & Post
1378 case 0x1c: // VCLK 1 Denominator & Post
1379 case 0x1d: // VCLK 2 Denominator & Post
1380 case 0x1e: // VCLK 3 Denominator & Post
1381 case 0x1f: // BIOS Write Enable and MCLK select
1382 s->vga.sr[s->vga.sr_index] = val;
1383 #ifdef DEBUG_CIRRUS
1384 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1385 s->vga.sr_index, val);
1386 #endif
1387 break;
1388 case 0x12: // Graphics Cursor Attribute
1389 s->vga.sr[0x12] = val;
1390 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
1391 #ifdef DEBUG_CIRRUS
1392 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
1393 val, s->vga.force_shadow);
1394 #endif
1395 break;
1396 case 0x17: // Configuration Readback and Extended Control
1397 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1398 | (val & 0xc7);
1399 cirrus_update_memory_access(s);
1400 break;
1401 default:
1402 #ifdef DEBUG_CIRRUS
1403 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1404 s->vga.sr_index, val);
1405 #endif
1406 break;
1407 }
1408 }
1409
1410 /***************************************
1411 *
1412 * I/O access at 0x3c6
1413 *
1414 ***************************************/
1415
1416 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1417 {
1418 if (++s->cirrus_hidden_dac_lockindex == 5) {
1419 s->cirrus_hidden_dac_lockindex = 0;
1420 return s->cirrus_hidden_dac_data;
1421 }
1422 return 0xff;
1423 }
1424
1425 static 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;
1429 #if defined(DEBUG_CIRRUS)
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
1442 static int cirrus_vga_read_palette(CirrusVGAState * s)
1443 {
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 }
1452 if (++s->vga.dac_sub_index == 3) {
1453 s->vga.dac_sub_index = 0;
1454 s->vga.dac_read_index++;
1455 }
1456 return val;
1457 }
1458
1459 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1460 {
1461 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1462 if (++s->vga.dac_sub_index == 3) {
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 }
1469 /* XXX update cursor */
1470 s->vga.dac_sub_index = 0;
1471 s->vga.dac_write_index++;
1472 }
1473 }
1474
1475 /***************************************
1476 *
1477 * I/O access between 0x3ce-0x3cf
1478 *
1479 ***************************************/
1480
1481 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1482 {
1483 switch (reg_index) {
1484 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1485 return s->cirrus_shadow_gr0;
1486 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1487 return s->cirrus_shadow_gr1;
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
1494 return s->vga.gr[s->vga.gr_index];
1495 case 0x05: // Standard VGA, Cirrus extended mode
1496 default:
1497 break;
1498 }
1499
1500 if (reg_index < 0x3a) {
1501 return s->vga.gr[reg_index];
1502 } else {
1503 #ifdef DEBUG_CIRRUS
1504 printf("cirrus: inport gr_index %02x\n", reg_index);
1505 #endif
1506 return 0xff;
1507 }
1508 }
1509
1510 static void
1511 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1512 {
1513 #if defined(DEBUG_BITBLT) && 0
1514 printf("gr%02x: %02x\n", reg_index, reg_value);
1515 #endif
1516 switch (reg_index) {
1517 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1518 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1519 s->cirrus_shadow_gr0 = reg_value;
1520 break;
1521 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1522 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1523 s->cirrus_shadow_gr1 = reg_value;
1524 break;
1525 case 0x02: // Standard VGA
1526 case 0x03: // Standard VGA
1527 case 0x04: // Standard VGA
1528 case 0x06: // Standard VGA
1529 case 0x07: // Standard VGA
1530 case 0x08: // Standard VGA
1531 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1532 break;
1533 case 0x05: // Standard VGA, Cirrus extended mode
1534 s->vga.gr[reg_index] = reg_value & 0x7f;
1535 cirrus_update_memory_access(s);
1536 break;
1537 case 0x09: // bank offset #0
1538 case 0x0A: // bank offset #1
1539 s->vga.gr[reg_index] = reg_value;
1540 cirrus_update_bank_ptr(s, 0);
1541 cirrus_update_bank_ptr(s, 1);
1542 cirrus_update_memory_access(s);
1543 break;
1544 case 0x0B:
1545 s->vga.gr[reg_index] = reg_value;
1546 cirrus_update_bank_ptr(s, 0);
1547 cirrus_update_bank_ptr(s, 1);
1548 cirrus_update_memory_access(s);
1549 break;
1550 case 0x10: // BGCOLOR 0x0000ff00
1551 case 0x11: // FGCOLOR 0x0000ff00
1552 case 0x12: // BGCOLOR 0x00ff0000
1553 case 0x13: // FGCOLOR 0x00ff0000
1554 case 0x14: // BGCOLOR 0xff000000
1555 case 0x15: // FGCOLOR 0xff000000
1556 case 0x20: // BLT WIDTH 0x0000ff
1557 case 0x22: // BLT HEIGHT 0x0000ff
1558 case 0x24: // BLT DEST PITCH 0x0000ff
1559 case 0x26: // BLT SRC PITCH 0x0000ff
1560 case 0x28: // BLT DEST ADDR 0x0000ff
1561 case 0x29: // BLT DEST ADDR 0x00ff00
1562 case 0x2c: // BLT SRC ADDR 0x0000ff
1563 case 0x2d: // BLT SRC ADDR 0x00ff00
1564 case 0x2f: // BLT WRITEMASK
1565 case 0x30: // BLT MODE
1566 case 0x32: // RASTER OP
1567 case 0x33: // BLT MODEEXT
1568 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1569 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1570 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1571 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1572 s->vga.gr[reg_index] = reg_value;
1573 break;
1574 case 0x21: // BLT WIDTH 0x001f00
1575 case 0x23: // BLT HEIGHT 0x001f00
1576 case 0x25: // BLT DEST PITCH 0x001f00
1577 case 0x27: // BLT SRC PITCH 0x001f00
1578 s->vga.gr[reg_index] = reg_value & 0x1f;
1579 break;
1580 case 0x2a: // BLT DEST ADDR 0x3f0000
1581 s->vga.gr[reg_index] = reg_value & 0x3f;
1582 /* if auto start mode, starts bit blt now */
1583 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1584 cirrus_bitblt_start(s);
1585 }
1586 break;
1587 case 0x2e: // BLT SRC ADDR 0x3f0000
1588 s->vga.gr[reg_index] = reg_value & 0x3f;
1589 break;
1590 case 0x31: // BLT STATUS/START
1591 cirrus_write_bitblt(s, reg_value);
1592 break;
1593 default:
1594 #ifdef DEBUG_CIRRUS
1595 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1596 reg_value);
1597 #endif
1598 break;
1599 }
1600 }
1601
1602 /***************************************
1603 *
1604 * I/O access between 0x3d4-0x3d5
1605 *
1606 ***************************************/
1607
1608 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1609 {
1610 switch (reg_index) {
1611 case 0x00: // Standard VGA
1612 case 0x01: // Standard VGA
1613 case 0x02: // Standard VGA
1614 case 0x03: // Standard VGA
1615 case 0x04: // Standard VGA
1616 case 0x05: // Standard VGA
1617 case 0x06: // Standard VGA
1618 case 0x07: // Standard VGA
1619 case 0x08: // Standard VGA
1620 case 0x09: // Standard VGA
1621 case 0x0a: // Standard VGA
1622 case 0x0b: // Standard VGA
1623 case 0x0c: // Standard VGA
1624 case 0x0d: // Standard VGA
1625 case 0x0e: // Standard VGA
1626 case 0x0f: // Standard VGA
1627 case 0x10: // Standard VGA
1628 case 0x11: // Standard VGA
1629 case 0x12: // Standard VGA
1630 case 0x13: // Standard VGA
1631 case 0x14: // Standard VGA
1632 case 0x15: // Standard VGA
1633 case 0x16: // Standard VGA
1634 case 0x17: // Standard VGA
1635 case 0x18: // Standard VGA
1636 return s->vga.cr[s->vga.cr_index];
1637 case 0x24: // Attribute Controller Toggle Readback (R)
1638 return (s->vga.ar_flip_flop << 7);
1639 case 0x19: // Interlace End
1640 case 0x1a: // Miscellaneous Control
1641 case 0x1b: // Extended Display Control
1642 case 0x1c: // Sync Adjust and Genlock
1643 case 0x1d: // Overlay Extended Control
1644 case 0x22: // Graphics Data Latches Readback (R)
1645 case 0x25: // Part Status
1646 case 0x27: // Part ID (R)
1647 return s->vga.cr[s->vga.cr_index];
1648 case 0x26: // Attribute Controller Index Readback (R)
1649 return s->vga.ar_index & 0x3f;
1650 break;
1651 default:
1652 #ifdef DEBUG_CIRRUS
1653 printf("cirrus: inport cr_index %02x\n", reg_index);
1654 #endif
1655 return 0xff;
1656 }
1657 }
1658
1659 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1660 {
1661 switch (s->vga.cr_index) {
1662 case 0x00: // Standard VGA
1663 case 0x01: // Standard VGA
1664 case 0x02: // Standard VGA
1665 case 0x03: // Standard VGA
1666 case 0x04: // Standard VGA
1667 case 0x05: // Standard VGA
1668 case 0x06: // Standard VGA
1669 case 0x07: // Standard VGA
1670 case 0x08: // Standard VGA
1671 case 0x09: // Standard VGA
1672 case 0x0a: // Standard VGA
1673 case 0x0b: // Standard VGA
1674 case 0x0c: // Standard VGA
1675 case 0x0d: // Standard VGA
1676 case 0x0e: // Standard VGA
1677 case 0x0f: // Standard VGA
1678 case 0x10: // Standard VGA
1679 case 0x11: // Standard VGA
1680 case 0x12: // Standard VGA
1681 case 0x13: // Standard VGA
1682 case 0x14: // Standard VGA
1683 case 0x15: // Standard VGA
1684 case 0x16: // Standard VGA
1685 case 0x17: // Standard VGA
1686 case 0x18: // Standard VGA
1687 /* handle CR0-7 protection */
1688 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1689 /* can always write bit 4 of CR7 */
1690 if (s->vga.cr_index == 7)
1691 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1692 return;
1693 }
1694 s->vga.cr[s->vga.cr_index] = reg_value;
1695 switch(s->vga.cr_index) {
1696 case 0x00:
1697 case 0x04:
1698 case 0x05:
1699 case 0x06:
1700 case 0x07:
1701 case 0x11:
1702 case 0x17:
1703 s->vga.update_retrace_info(&s->vga);
1704 break;
1705 }
1706 break;
1707 case 0x19: // Interlace End
1708 case 0x1a: // Miscellaneous Control
1709 case 0x1b: // Extended Display Control
1710 case 0x1c: // Sync Adjust and Genlock
1711 case 0x1d: // Overlay Extended Control
1712 s->vga.cr[s->vga.cr_index] = reg_value;
1713 #ifdef DEBUG_CIRRUS
1714 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1715 s->vga.cr_index, reg_value);
1716 #endif
1717 break;
1718 case 0x22: // Graphics Data Latches Readback (R)
1719 case 0x24: // Attribute Controller Toggle Readback (R)
1720 case 0x26: // Attribute Controller Index Readback (R)
1721 case 0x27: // Part ID (R)
1722 break;
1723 case 0x25: // Part Status
1724 default:
1725 #ifdef DEBUG_CIRRUS
1726 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1727 s->vga.cr_index, reg_value);
1728 #endif
1729 break;
1730 }
1731 }
1732
1733 /***************************************
1734 *
1735 * memory-mapped I/O (bitblt)
1736 *
1737 ***************************************/
1738
1739 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1740 {
1741 int value = 0xff;
1742
1743 switch (address) {
1744 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1745 value = cirrus_vga_read_gr(s, 0x00);
1746 break;
1747 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1748 value = cirrus_vga_read_gr(s, 0x10);
1749 break;
1750 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1751 value = cirrus_vga_read_gr(s, 0x12);
1752 break;
1753 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1754 value = cirrus_vga_read_gr(s, 0x14);
1755 break;
1756 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1757 value = cirrus_vga_read_gr(s, 0x01);
1758 break;
1759 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1760 value = cirrus_vga_read_gr(s, 0x11);
1761 break;
1762 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1763 value = cirrus_vga_read_gr(s, 0x13);
1764 break;
1765 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1766 value = cirrus_vga_read_gr(s, 0x15);
1767 break;
1768 case (CIRRUS_MMIO_BLTWIDTH + 0):
1769 value = cirrus_vga_read_gr(s, 0x20);
1770 break;
1771 case (CIRRUS_MMIO_BLTWIDTH + 1):
1772 value = cirrus_vga_read_gr(s, 0x21);
1773 break;
1774 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1775 value = cirrus_vga_read_gr(s, 0x22);
1776 break;
1777 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1778 value = cirrus_vga_read_gr(s, 0x23);
1779 break;
1780 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1781 value = cirrus_vga_read_gr(s, 0x24);
1782 break;
1783 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1784 value = cirrus_vga_read_gr(s, 0x25);
1785 break;
1786 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1787 value = cirrus_vga_read_gr(s, 0x26);
1788 break;
1789 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1790 value = cirrus_vga_read_gr(s, 0x27);
1791 break;
1792 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1793 value = cirrus_vga_read_gr(s, 0x28);
1794 break;
1795 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1796 value = cirrus_vga_read_gr(s, 0x29);
1797 break;
1798 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1799 value = cirrus_vga_read_gr(s, 0x2a);
1800 break;
1801 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1802 value = cirrus_vga_read_gr(s, 0x2c);
1803 break;
1804 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1805 value = cirrus_vga_read_gr(s, 0x2d);
1806 break;
1807 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1808 value = cirrus_vga_read_gr(s, 0x2e);
1809 break;
1810 case CIRRUS_MMIO_BLTWRITEMASK:
1811 value = cirrus_vga_read_gr(s, 0x2f);
1812 break;
1813 case CIRRUS_MMIO_BLTMODE:
1814 value = cirrus_vga_read_gr(s, 0x30);
1815 break;
1816 case CIRRUS_MMIO_BLTROP:
1817 value = cirrus_vga_read_gr(s, 0x32);
1818 break;
1819 case CIRRUS_MMIO_BLTMODEEXT:
1820 value = cirrus_vga_read_gr(s, 0x33);
1821 break;
1822 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1823 value = cirrus_vga_read_gr(s, 0x34);
1824 break;
1825 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1826 value = cirrus_vga_read_gr(s, 0x35);
1827 break;
1828 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1829 value = cirrus_vga_read_gr(s, 0x38);
1830 break;
1831 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1832 value = cirrus_vga_read_gr(s, 0x39);
1833 break;
1834 case CIRRUS_MMIO_BLTSTATUS:
1835 value = cirrus_vga_read_gr(s, 0x31);
1836 break;
1837 default:
1838 #ifdef DEBUG_CIRRUS
1839 printf("cirrus: mmio read - address 0x%04x\n", address);
1840 #endif
1841 break;
1842 }
1843
1844 trace_vga_cirrus_write_blt(address, value);
1845 return (uint8_t) value;
1846 }
1847
1848 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1849 uint8_t value)
1850 {
1851 trace_vga_cirrus_write_blt(address, value);
1852 switch (address) {
1853 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1854 cirrus_vga_write_gr(s, 0x00, value);
1855 break;
1856 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1857 cirrus_vga_write_gr(s, 0x10, value);
1858 break;
1859 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1860 cirrus_vga_write_gr(s, 0x12, value);
1861 break;
1862 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1863 cirrus_vga_write_gr(s, 0x14, value);
1864 break;
1865 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1866 cirrus_vga_write_gr(s, 0x01, value);
1867 break;
1868 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1869 cirrus_vga_write_gr(s, 0x11, value);
1870 break;
1871 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1872 cirrus_vga_write_gr(s, 0x13, value);
1873 break;
1874 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1875 cirrus_vga_write_gr(s, 0x15, value);
1876 break;
1877 case (CIRRUS_MMIO_BLTWIDTH + 0):
1878 cirrus_vga_write_gr(s, 0x20, value);
1879 break;
1880 case (CIRRUS_MMIO_BLTWIDTH + 1):
1881 cirrus_vga_write_gr(s, 0x21, value);
1882 break;
1883 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1884 cirrus_vga_write_gr(s, 0x22, value);
1885 break;
1886 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1887 cirrus_vga_write_gr(s, 0x23, value);
1888 break;
1889 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1890 cirrus_vga_write_gr(s, 0x24, value);
1891 break;
1892 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1893 cirrus_vga_write_gr(s, 0x25, value);
1894 break;
1895 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1896 cirrus_vga_write_gr(s, 0x26, value);
1897 break;
1898 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1899 cirrus_vga_write_gr(s, 0x27, value);
1900 break;
1901 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1902 cirrus_vga_write_gr(s, 0x28, value);
1903 break;
1904 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1905 cirrus_vga_write_gr(s, 0x29, value);
1906 break;
1907 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1908 cirrus_vga_write_gr(s, 0x2a, value);
1909 break;
1910 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1911 /* ignored */
1912 break;
1913 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1914 cirrus_vga_write_gr(s, 0x2c, value);
1915 break;
1916 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1917 cirrus_vga_write_gr(s, 0x2d, value);
1918 break;
1919 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1920 cirrus_vga_write_gr(s, 0x2e, value);
1921 break;
1922 case CIRRUS_MMIO_BLTWRITEMASK:
1923 cirrus_vga_write_gr(s, 0x2f, value);
1924 break;
1925 case CIRRUS_MMIO_BLTMODE:
1926 cirrus_vga_write_gr(s, 0x30, value);
1927 break;
1928 case CIRRUS_MMIO_BLTROP:
1929 cirrus_vga_write_gr(s, 0x32, value);
1930 break;
1931 case CIRRUS_MMIO_BLTMODEEXT:
1932 cirrus_vga_write_gr(s, 0x33, value);
1933 break;
1934 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1935 cirrus_vga_write_gr(s, 0x34, value);
1936 break;
1937 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1938 cirrus_vga_write_gr(s, 0x35, value);
1939 break;
1940 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1941 cirrus_vga_write_gr(s, 0x38, value);
1942 break;
1943 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1944 cirrus_vga_write_gr(s, 0x39, value);
1945 break;
1946 case CIRRUS_MMIO_BLTSTATUS:
1947 cirrus_vga_write_gr(s, 0x31, value);
1948 break;
1949 default:
1950 #ifdef DEBUG_CIRRUS
1951 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1952 address, value);
1953 #endif
1954 break;
1955 }
1956 }
1957
1958 /***************************************
1959 *
1960 * write mode 4/5
1961 *
1962 ***************************************/
1963
1964 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1965 unsigned mode,
1966 unsigned offset,
1967 uint32_t mem_value)
1968 {
1969 int x;
1970 unsigned val = mem_value;
1971 uint8_t *dst;
1972
1973 for (x = 0; x < 8; x++) {
1974 dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask);
1975 if (val & 0x80) {
1976 *dst = s->cirrus_shadow_gr1;
1977 } else if (mode == 5) {
1978 *dst = s->cirrus_shadow_gr0;
1979 }
1980 val <<= 1;
1981 }
1982 memory_region_set_dirty(&s->vga.vram, offset, 8);
1983 }
1984
1985 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1986 unsigned mode,
1987 unsigned offset,
1988 uint32_t mem_value)
1989 {
1990 int x;
1991 unsigned val = mem_value;
1992 uint8_t *dst;
1993
1994 for (x = 0; x < 8; x++) {
1995 dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1);
1996 if (val & 0x80) {
1997 *dst = s->cirrus_shadow_gr1;
1998 *(dst + 1) = s->vga.gr[0x11];
1999 } else if (mode == 5) {
2000 *dst = s->cirrus_shadow_gr0;
2001 *(dst + 1) = s->vga.gr[0x10];
2002 }
2003 val <<= 1;
2004 }
2005 memory_region_set_dirty(&s->vga.vram, offset, 16);
2006 }
2007
2008 /***************************************
2009 *
2010 * memory access between 0xa0000-0xbffff
2011 *
2012 ***************************************/
2013
2014 static uint64_t cirrus_vga_mem_read(void *opaque,
2015 hwaddr addr,
2016 uint32_t size)
2017 {
2018 CirrusVGAState *s = opaque;
2019 unsigned bank_index;
2020 unsigned bank_offset;
2021 uint32_t val;
2022
2023 if ((s->vga.sr[0x07] & 0x01) == 0) {
2024 return vga_mem_readb(&s->vga, addr);
2025 }
2026
2027 if (addr < 0x10000) {
2028 /* XXX handle bitblt */
2029 /* video memory */
2030 bank_index = addr >> 15;
2031 bank_offset = addr & 0x7fff;
2032 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2033 bank_offset += s->cirrus_bank_base[bank_index];
2034 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2035 bank_offset <<= 4;
2036 } else if (s->vga.gr[0x0B] & 0x02) {
2037 bank_offset <<= 3;
2038 }
2039 bank_offset &= s->cirrus_addr_mask;
2040 val = *(s->vga.vram_ptr + bank_offset);
2041 } else
2042 val = 0xff;
2043 } else if (addr >= 0x18000 && addr < 0x18100) {
2044 /* memory-mapped I/O */
2045 val = 0xff;
2046 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2047 val = cirrus_mmio_blt_read(s, addr & 0xff);
2048 }
2049 } else {
2050 val = 0xff;
2051 #ifdef DEBUG_CIRRUS
2052 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2053 #endif
2054 }
2055 return val;
2056 }
2057
2058 static void cirrus_vga_mem_write(void *opaque,
2059 hwaddr addr,
2060 uint64_t mem_value,
2061 uint32_t size)
2062 {
2063 CirrusVGAState *s = opaque;
2064 unsigned bank_index;
2065 unsigned bank_offset;
2066 unsigned mode;
2067
2068 if ((s->vga.sr[0x07] & 0x01) == 0) {
2069 vga_mem_writeb(&s->vga, addr, mem_value);
2070 return;
2071 }
2072
2073 if (addr < 0x10000) {
2074 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2075 /* bitblt */
2076 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2077 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2078 cirrus_bitblt_cputovideo_next(s);
2079 }
2080 } else {
2081 /* video memory */
2082 bank_index = addr >> 15;
2083 bank_offset = addr & 0x7fff;
2084 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2085 bank_offset += s->cirrus_bank_base[bank_index];
2086 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2087 bank_offset <<= 4;
2088 } else if (s->vga.gr[0x0B] & 0x02) {
2089 bank_offset <<= 3;
2090 }
2091 bank_offset &= s->cirrus_addr_mask;
2092 mode = s->vga.gr[0x05] & 0x7;
2093 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2094 *(s->vga.vram_ptr + bank_offset) = mem_value;
2095 memory_region_set_dirty(&s->vga.vram, bank_offset,
2096 sizeof(mem_value));
2097 } else {
2098 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2099 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2100 bank_offset,
2101 mem_value);
2102 } else {
2103 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2104 bank_offset,
2105 mem_value);
2106 }
2107 }
2108 }
2109 }
2110 } else if (addr >= 0x18000 && addr < 0x18100) {
2111 /* memory-mapped I/O */
2112 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2113 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2114 }
2115 } else {
2116 #ifdef DEBUG_CIRRUS
2117 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr,
2118 mem_value);
2119 #endif
2120 }
2121 }
2122
2123 static const MemoryRegionOps cirrus_vga_mem_ops = {
2124 .read = cirrus_vga_mem_read,
2125 .write = cirrus_vga_mem_write,
2126 .endianness = DEVICE_LITTLE_ENDIAN,
2127 .impl = {
2128 .min_access_size = 1,
2129 .max_access_size = 1,
2130 },
2131 };
2132
2133 /***************************************
2134 *
2135 * hardware cursor
2136 *
2137 ***************************************/
2138
2139 static inline void invalidate_cursor1(CirrusVGAState *s)
2140 {
2141 if (s->last_hw_cursor_size) {
2142 vga_invalidate_scanlines(&s->vga,
2143 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2144 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2145 }
2146 }
2147
2148 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2149 {
2150 const uint8_t *src;
2151 uint32_t content;
2152 int y, y_min, y_max;
2153
2154 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
2155 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2156 src += (s->vga.sr[0x13] & 0x3c) * 256;
2157 y_min = 64;
2158 y_max = -1;
2159 for(y = 0; y < 64; y++) {
2160 content = ((uint32_t *)src)[0] |
2161 ((uint32_t *)src)[1] |
2162 ((uint32_t *)src)[2] |
2163 ((uint32_t *)src)[3];
2164 if (content) {
2165 if (y < y_min)
2166 y_min = y;
2167 if (y > y_max)
2168 y_max = y;
2169 }
2170 src += 16;
2171 }
2172 } else {
2173 src += (s->vga.sr[0x13] & 0x3f) * 256;
2174 y_min = 32;
2175 y_max = -1;
2176 for(y = 0; y < 32; y++) {
2177 content = ((uint32_t *)src)[0] |
2178 ((uint32_t *)(src + 128))[0];
2179 if (content) {
2180 if (y < y_min)
2181 y_min = y;
2182 if (y > y_max)
2183 y_max = y;
2184 }
2185 src += 4;
2186 }
2187 }
2188 if (y_min > y_max) {
2189 s->last_hw_cursor_y_start = 0;
2190 s->last_hw_cursor_y_end = 0;
2191 } else {
2192 s->last_hw_cursor_y_start = y_min;
2193 s->last_hw_cursor_y_end = y_max + 1;
2194 }
2195 }
2196
2197 /* NOTE: we do not currently handle the cursor bitmap change, so we
2198 update the cursor only if it moves. */
2199 static void cirrus_cursor_invalidate(VGACommonState *s1)
2200 {
2201 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2202 int size;
2203
2204 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2205 size = 0;
2206 } else {
2207 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2208 size = 64;
2209 else
2210 size = 32;
2211 }
2212 /* invalidate last cursor and new cursor if any change */
2213 if (s->last_hw_cursor_size != size ||
2214 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2215 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
2216
2217 invalidate_cursor1(s);
2218
2219 s->last_hw_cursor_size = size;
2220 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2221 s->last_hw_cursor_y = s->vga.hw_cursor_y;
2222 /* compute the real cursor min and max y */
2223 cirrus_cursor_compute_yrange(s);
2224 invalidate_cursor1(s);
2225 }
2226 }
2227
2228 static void vga_draw_cursor_line(uint8_t *d1,
2229 const uint8_t *src1,
2230 int poffset, int w,
2231 unsigned int color0,
2232 unsigned int color1,
2233 unsigned int color_xor)
2234 {
2235 const uint8_t *plane0, *plane1;
2236 int x, b0, b1;
2237 uint8_t *d;
2238
2239 d = d1;
2240 plane0 = src1;
2241 plane1 = src1 + poffset;
2242 for (x = 0; x < w; x++) {
2243 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2244 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2245 switch (b0 | (b1 << 1)) {
2246 case 0:
2247 break;
2248 case 1:
2249 ((uint32_t *)d)[0] ^= color_xor;
2250 break;
2251 case 2:
2252 ((uint32_t *)d)[0] = color0;
2253 break;
2254 case 3:
2255 ((uint32_t *)d)[0] = color1;
2256 break;
2257 }
2258 d += 4;
2259 }
2260 }
2261
2262 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2263 {
2264 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2265 int w, h, x1, x2, poffset;
2266 unsigned int color0, color1;
2267 const uint8_t *palette, *src;
2268 uint32_t content;
2269
2270 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2271 return;
2272 /* fast test to see if the cursor intersects with the scan line */
2273 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2274 h = 64;
2275 } else {
2276 h = 32;
2277 }
2278 if (scr_y < s->vga.hw_cursor_y ||
2279 scr_y >= (s->vga.hw_cursor_y + h)) {
2280 return;
2281 }
2282
2283 src = s->vga.vram_ptr + s->real_vram_size - 16 * KiB;
2284 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2285 src += (s->vga.sr[0x13] & 0x3c) * 256;
2286 src += (scr_y - s->vga.hw_cursor_y) * 16;
2287 poffset = 8;
2288 content = ((uint32_t *)src)[0] |
2289 ((uint32_t *)src)[1] |
2290 ((uint32_t *)src)[2] |
2291 ((uint32_t *)src)[3];
2292 } else {
2293 src += (s->vga.sr[0x13] & 0x3f) * 256;
2294 src += (scr_y - s->vga.hw_cursor_y) * 4;
2295
2296
2297 poffset = 128;
2298 content = ((uint32_t *)src)[0] |
2299 ((uint32_t *)(src + 128))[0];
2300 }
2301 /* if nothing to draw, no need to continue */
2302 if (!content)
2303 return;
2304 w = h;
2305
2306 x1 = s->vga.hw_cursor_x;
2307 if (x1 >= s->vga.last_scr_width)
2308 return;
2309 x2 = s->vga.hw_cursor_x + w;
2310 if (x2 > s->vga.last_scr_width)
2311 x2 = s->vga.last_scr_width;
2312 w = x2 - x1;
2313 palette = s->cirrus_hidden_palette;
2314 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2315 c6_to_8(palette[0x0 * 3 + 1]),
2316 c6_to_8(palette[0x0 * 3 + 2]));
2317 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2318 c6_to_8(palette[0xf * 3 + 1]),
2319 c6_to_8(palette[0xf * 3 + 2]));
2320 d1 += x1 * 4;
2321 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
2322 }
2323
2324 /***************************************
2325 *
2326 * LFB memory access
2327 *
2328 ***************************************/
2329
2330 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2331 unsigned size)
2332 {
2333 CirrusVGAState *s = opaque;
2334 uint32_t ret;
2335
2336 addr &= s->cirrus_addr_mask;
2337
2338 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2339 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2340 /* memory-mapped I/O */
2341 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2342 } else if (0) {
2343 /* XXX handle bitblt */
2344 ret = 0xff;
2345 } else {
2346 /* video memory */
2347 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2348 addr <<= 4;
2349 } else if (s->vga.gr[0x0B] & 0x02) {
2350 addr <<= 3;
2351 }
2352 addr &= s->cirrus_addr_mask;
2353 ret = *(s->vga.vram_ptr + addr);
2354 }
2355
2356 return ret;
2357 }
2358
2359 static void cirrus_linear_write(void *opaque, hwaddr addr,
2360 uint64_t val, unsigned size)
2361 {
2362 CirrusVGAState *s = opaque;
2363 unsigned mode;
2364
2365 addr &= s->cirrus_addr_mask;
2366
2367 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2368 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2369 /* memory-mapped I/O */
2370 cirrus_mmio_blt_write(s, addr & 0xff, val);
2371 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2372 /* bitblt */
2373 *s->cirrus_srcptr++ = (uint8_t) val;
2374 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2375 cirrus_bitblt_cputovideo_next(s);
2376 }
2377 } else {
2378 /* video memory */
2379 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2380 addr <<= 4;
2381 } else if (s->vga.gr[0x0B] & 0x02) {
2382 addr <<= 3;
2383 }
2384 addr &= s->cirrus_addr_mask;
2385
2386 mode = s->vga.gr[0x05] & 0x7;
2387 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2388 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2389 memory_region_set_dirty(&s->vga.vram, addr, 1);
2390 } else {
2391 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2392 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2393 } else {
2394 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2395 }
2396 }
2397 }
2398 }
2399
2400 /***************************************
2401 *
2402 * system to screen memory access
2403 *
2404 ***************************************/
2405
2406
2407 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2408 hwaddr addr,
2409 unsigned size)
2410 {
2411 CirrusVGAState *s = opaque;
2412 uint32_t ret;
2413
2414 /* XXX handle bitblt */
2415 (void)s;
2416 ret = 0xff;
2417 return ret;
2418 }
2419
2420 static void cirrus_linear_bitblt_write(void *opaque,
2421 hwaddr addr,
2422 uint64_t val,
2423 unsigned size)
2424 {
2425 CirrusVGAState *s = opaque;
2426
2427 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2428 /* bitblt */
2429 *s->cirrus_srcptr++ = (uint8_t) val;
2430 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2431 cirrus_bitblt_cputovideo_next(s);
2432 }
2433 }
2434 }
2435
2436 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2437 .read = cirrus_linear_bitblt_read,
2438 .write = cirrus_linear_bitblt_write,
2439 .endianness = DEVICE_LITTLE_ENDIAN,
2440 .impl = {
2441 .min_access_size = 1,
2442 .max_access_size = 1,
2443 },
2444 };
2445
2446 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2447 {
2448 MemoryRegion *mr = &s->cirrus_bank[bank];
2449 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2450 && !((s->vga.sr[0x07] & 0x01) == 0)
2451 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2452 && !(s->vga.gr[0x0B] & 0x02);
2453
2454 memory_region_set_enabled(mr, enabled);
2455 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2456 }
2457
2458 static void map_linear_vram(CirrusVGAState *s)
2459 {
2460 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2461 s->linear_vram = true;
2462 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2463 }
2464 map_linear_vram_bank(s, 0);
2465 map_linear_vram_bank(s, 1);
2466 }
2467
2468 static void unmap_linear_vram(CirrusVGAState *s)
2469 {
2470 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2471 s->linear_vram = false;
2472 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2473 }
2474 memory_region_set_enabled(&s->cirrus_bank[0], false);
2475 memory_region_set_enabled(&s->cirrus_bank[1], false);
2476 }
2477
2478 /* Compute the memory access functions */
2479 static void cirrus_update_memory_access(CirrusVGAState *s)
2480 {
2481 unsigned mode;
2482
2483 memory_region_transaction_begin();
2484 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2485 goto generic_io;
2486 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2487 goto generic_io;
2488 } else {
2489 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2490 goto generic_io;
2491 } else if (s->vga.gr[0x0B] & 0x02) {
2492 goto generic_io;
2493 }
2494
2495 mode = s->vga.gr[0x05] & 0x7;
2496 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2497 map_linear_vram(s);
2498 } else {
2499 generic_io:
2500 unmap_linear_vram(s);
2501 }
2502 }
2503 memory_region_transaction_commit();
2504 }
2505
2506
2507 /* I/O ports */
2508
2509 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2510 unsigned size)
2511 {
2512 CirrusVGAState *c = opaque;
2513 VGACommonState *s = &c->vga;
2514 int val, index;
2515
2516 addr += 0x3b0;
2517
2518 if (vga_ioport_invalid(s, addr)) {
2519 val = 0xff;
2520 } else {
2521 switch (addr) {
2522 case 0x3c0:
2523 if (s->ar_flip_flop == 0) {
2524 val = s->ar_index;
2525 } else {
2526 val = 0;
2527 }
2528 break;
2529 case 0x3c1:
2530 index = s->ar_index & 0x1f;
2531 if (index < 21)
2532 val = s->ar[index];
2533 else
2534 val = 0;
2535 break;
2536 case 0x3c2:
2537 val = s->st00;
2538 break;
2539 case 0x3c4:
2540 val = s->sr_index;
2541 break;
2542 case 0x3c5:
2543 val = cirrus_vga_read_sr(c);
2544 break;
2545 #ifdef DEBUG_VGA_REG
2546 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2547 #endif
2548 break;
2549 case 0x3c6:
2550 val = cirrus_read_hidden_dac(c);
2551 break;
2552 case 0x3c7:
2553 val = s->dac_state;
2554 break;
2555 case 0x3c8:
2556 val = s->dac_write_index;
2557 c->cirrus_hidden_dac_lockindex = 0;
2558 break;
2559 case 0x3c9:
2560 val = cirrus_vga_read_palette(c);
2561 break;
2562 case 0x3ca:
2563 val = s->fcr;
2564 break;
2565 case 0x3cc:
2566 val = s->msr;
2567 break;
2568 case 0x3ce:
2569 val = s->gr_index;
2570 break;
2571 case 0x3cf:
2572 val = cirrus_vga_read_gr(c, s->gr_index);
2573 #ifdef DEBUG_VGA_REG
2574 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2575 #endif
2576 break;
2577 case 0x3b4:
2578 case 0x3d4:
2579 val = s->cr_index;
2580 break;
2581 case 0x3b5:
2582 case 0x3d5:
2583 val = cirrus_vga_read_cr(c, s->cr_index);
2584 #ifdef DEBUG_VGA_REG
2585 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2586 #endif
2587 break;
2588 case 0x3ba:
2589 case 0x3da:
2590 /* just toggle to fool polling */
2591 val = s->st01 = s->retrace(s);
2592 s->ar_flip_flop = 0;
2593 break;
2594 default:
2595 val = 0x00;
2596 break;
2597 }
2598 }
2599 trace_vga_cirrus_read_io(addr, val);
2600 return val;
2601 }
2602
2603 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2604 unsigned size)
2605 {
2606 CirrusVGAState *c = opaque;
2607 VGACommonState *s = &c->vga;
2608 int index;
2609
2610 addr += 0x3b0;
2611
2612 /* check port range access depending on color/monochrome mode */
2613 if (vga_ioport_invalid(s, addr)) {
2614 return;
2615 }
2616 trace_vga_cirrus_write_io(addr, val);
2617
2618 switch (addr) {
2619 case 0x3c0:
2620 if (s->ar_flip_flop == 0) {
2621 val &= 0x3f;
2622 s->ar_index = val;
2623 } else {
2624 index = s->ar_index & 0x1f;
2625 switch (index) {
2626 case 0x00 ... 0x0f:
2627 s->ar[index] = val & 0x3f;
2628 break;
2629 case 0x10:
2630 s->ar[index] = val & ~0x10;
2631 break;
2632 case 0x11:
2633 s->ar[index] = val;
2634 break;
2635 case 0x12:
2636 s->ar[index] = val & ~0xc0;
2637 break;
2638 case 0x13:
2639 s->ar[index] = val & ~0xf0;
2640 break;
2641 case 0x14:
2642 s->ar[index] = val & ~0xf0;
2643 break;
2644 default:
2645 break;
2646 }
2647 }
2648 s->ar_flip_flop ^= 1;
2649 break;
2650 case 0x3c2:
2651 s->msr = val & ~0x10;
2652 s->update_retrace_info(s);
2653 break;
2654 case 0x3c4:
2655 s->sr_index = val;
2656 break;
2657 case 0x3c5:
2658 #ifdef DEBUG_VGA_REG
2659 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val);
2660 #endif
2661 cirrus_vga_write_sr(c, val);
2662 break;
2663 case 0x3c6:
2664 cirrus_write_hidden_dac(c, val);
2665 break;
2666 case 0x3c7:
2667 s->dac_read_index = val;
2668 s->dac_sub_index = 0;
2669 s->dac_state = 3;
2670 break;
2671 case 0x3c8:
2672 s->dac_write_index = val;
2673 s->dac_sub_index = 0;
2674 s->dac_state = 0;
2675 break;
2676 case 0x3c9:
2677 cirrus_vga_write_palette(c, val);
2678 break;
2679 case 0x3ce:
2680 s->gr_index = val;
2681 break;
2682 case 0x3cf:
2683 #ifdef DEBUG_VGA_REG
2684 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val);
2685 #endif
2686 cirrus_vga_write_gr(c, s->gr_index, val);
2687 break;
2688 case 0x3b4:
2689 case 0x3d4:
2690 s->cr_index = val;
2691 break;
2692 case 0x3b5:
2693 case 0x3d5:
2694 #ifdef DEBUG_VGA_REG
2695 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val);
2696 #endif
2697 cirrus_vga_write_cr(c, val);
2698 break;
2699 case 0x3ba:
2700 case 0x3da:
2701 s->fcr = val & 0x10;
2702 break;
2703 }
2704 }
2705
2706 /***************************************
2707 *
2708 * memory-mapped I/O access
2709 *
2710 ***************************************/
2711
2712 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2713 unsigned size)
2714 {
2715 CirrusVGAState *s = opaque;
2716
2717 if (addr >= 0x100) {
2718 return cirrus_mmio_blt_read(s, addr - 0x100);
2719 } else {
2720 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2721 }
2722 }
2723
2724 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2725 uint64_t val, unsigned size)
2726 {
2727 CirrusVGAState *s = opaque;
2728
2729 if (addr >= 0x100) {
2730 cirrus_mmio_blt_write(s, addr - 0x100, val);
2731 } else {
2732 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2733 }
2734 }
2735
2736 static const MemoryRegionOps cirrus_mmio_io_ops = {
2737 .read = cirrus_mmio_read,
2738 .write = cirrus_mmio_write,
2739 .endianness = DEVICE_LITTLE_ENDIAN,
2740 .impl = {
2741 .min_access_size = 1,
2742 .max_access_size = 1,
2743 },
2744 };
2745
2746 /* load/save state */
2747
2748 static int cirrus_post_load(void *opaque, int version_id)
2749 {
2750 CirrusVGAState *s = opaque;
2751
2752 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2753 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2754
2755 cirrus_update_bank_ptr(s, 0);
2756 cirrus_update_bank_ptr(s, 1);
2757 cirrus_update_memory_access(s);
2758 /* force refresh */
2759 s->vga.graphic_mode = -1;
2760
2761 return 0;
2762 }
2763
2764 const VMStateDescription vmstate_cirrus_vga = {
2765 .name = "cirrus_vga",
2766 .version_id = 2,
2767 .minimum_version_id = 1,
2768 .post_load = cirrus_post_load,
2769 .fields = (VMStateField[]) {
2770 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2771 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2772 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2773 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2774 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2775 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2776 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2777 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2778 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2779 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2780 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2781 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2782 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2783 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2784 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2785 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2786 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2787 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2788 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2789 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2790 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2791 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2792 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2793 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2794 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2795 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2796 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
2797 /* XXX: we do not save the bitblt state - we assume we do not save
2798 the state when the blitter is active */
2799 VMSTATE_END_OF_LIST()
2800 }
2801 };
2802
2803 static const VMStateDescription vmstate_pci_cirrus_vga = {
2804 .name = "cirrus_vga",
2805 .version_id = 2,
2806 .minimum_version_id = 2,
2807 .fields = (VMStateField[]) {
2808 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2809 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2810 vmstate_cirrus_vga, CirrusVGAState),
2811 VMSTATE_END_OF_LIST()
2812 }
2813 };
2814
2815 /***************************************
2816 *
2817 * initialize
2818 *
2819 ***************************************/
2820
2821 static void cirrus_reset(void *opaque)
2822 {
2823 CirrusVGAState *s = opaque;
2824
2825 vga_common_reset(&s->vga);
2826 unmap_linear_vram(s);
2827 s->vga.sr[0x06] = 0x0f;
2828 if (s->device_id == CIRRUS_ID_CLGD5446) {
2829 /* 4MB 64 bit memory config, always PCI */
2830 s->vga.sr[0x1F] = 0x2d; // MemClock
2831 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2832 s->vga.sr[0x0f] = 0x98;
2833 s->vga.sr[0x17] = 0x20;
2834 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2835 } else {
2836 s->vga.sr[0x1F] = 0x22; // MemClock
2837 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2838 s->vga.sr[0x17] = s->bustype;
2839 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2840 }
2841 s->vga.cr[0x27] = s->device_id;
2842
2843 s->cirrus_hidden_dac_lockindex = 5;
2844 s->cirrus_hidden_dac_data = 0;
2845 }
2846
2847 static const MemoryRegionOps cirrus_linear_io_ops = {
2848 .read = cirrus_linear_read,
2849 .write = cirrus_linear_write,
2850 .endianness = DEVICE_LITTLE_ENDIAN,
2851 .impl = {
2852 .min_access_size = 1,
2853 .max_access_size = 1,
2854 },
2855 };
2856
2857 static const MemoryRegionOps cirrus_vga_io_ops = {
2858 .read = cirrus_vga_ioport_read,
2859 .write = cirrus_vga_ioport_write,
2860 .endianness = DEVICE_LITTLE_ENDIAN,
2861 .impl = {
2862 .min_access_size = 1,
2863 .max_access_size = 1,
2864 },
2865 };
2866
2867 void cirrus_init_common(CirrusVGAState *s, Object *owner,
2868 int device_id, int is_pci,
2869 MemoryRegion *system_memory, MemoryRegion *system_io)
2870 {
2871 int i;
2872 static int inited;
2873
2874 if (!inited) {
2875 inited = 1;
2876 for(i = 0;i < 256; i++)
2877 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2878 rop_to_index[CIRRUS_ROP_0] = 0;
2879 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2880 rop_to_index[CIRRUS_ROP_NOP] = 2;
2881 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2882 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2883 rop_to_index[CIRRUS_ROP_SRC] = 5;
2884 rop_to_index[CIRRUS_ROP_1] = 6;
2885 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2886 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2887 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2888 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2889 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2890 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2891 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2892 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2893 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2894 s->device_id = device_id;
2895 if (is_pci)
2896 s->bustype = CIRRUS_BUSTYPE_PCI;
2897 else
2898 s->bustype = CIRRUS_BUSTYPE_ISA;
2899 }
2900
2901 /* Register ioport 0x3b0 - 0x3df */
2902 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
2903 "cirrus-io", 0x30);
2904 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
2905 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2906
2907 memory_region_init(&s->low_mem_container, owner,
2908 "cirrus-lowmem-container",
2909 0x20000);
2910
2911 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
2912 "cirrus-low-memory", 0x20000);
2913 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2914 for (i = 0; i < 2; ++i) {
2915 static const char *names[] = { "vga.bank0", "vga.bank1" };
2916 MemoryRegion *bank = &s->cirrus_bank[i];
2917 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2918 0, 0x8000);
2919 memory_region_set_enabled(bank, false);
2920 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2921 bank, 1);
2922 }
2923 memory_region_add_subregion_overlap(system_memory,
2924 0x000a0000,
2925 &s->low_mem_container,
2926 1);
2927 memory_region_set_coalescing(&s->low_mem);
2928
2929 /* I/O handler for LFB */
2930 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
2931 "cirrus-linear-io", s->vga.vram_size_mb * MiB);
2932 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2933
2934 /* I/O handler for LFB */
2935 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
2936 &cirrus_linear_bitblt_io_ops,
2937 s,
2938 "cirrus-bitblt-mmio",
2939 0x400000);
2940 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2941
2942 /* I/O handler for memory-mapped I/O */
2943 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
2944 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2945 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2946
2947 s->real_vram_size =
2948 (s->device_id == CIRRUS_ID_CLGD5446) ? 4 * MiB : 2 * MiB;
2949
2950 /* XXX: s->vga.vram_size must be a power of two */
2951 s->cirrus_addr_mask = s->real_vram_size - 1;
2952 s->linear_mmio_mask = s->real_vram_size - 256;
2953
2954 s->vga.get_bpp = cirrus_get_bpp;
2955 s->vga.get_offsets = cirrus_get_offsets;
2956 s->vga.get_resolution = cirrus_get_resolution;
2957 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2958 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2959
2960 qemu_register_reset(cirrus_reset, s);
2961 }
2962
2963 /***************************************
2964 *
2965 * PCI bus support
2966 *
2967 ***************************************/
2968
2969 static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
2970 {
2971 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev);
2972 CirrusVGAState *s = &d->cirrus_vga;
2973 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2974 int16_t device_id = pc->device_id;
2975
2976 /* follow real hardware, cirrus card emulated has 4 MB video memory.
2977 Also accept 8 MB/16 MB for backward compatibility. */
2978 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
2979 s->vga.vram_size_mb != 16) {
2980 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
2981 s->vga.vram_size_mb);
2982 return;
2983 }
2984 /* setup VGA */
2985 vga_common_init(&s->vga, OBJECT(dev));
2986 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
2987 pci_address_space_io(dev));
2988 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
2989
2990 /* setup PCI */
2991
2992 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
2993
2994 /* XXX: add byte swapping apertures */
2995 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2996 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2997 &s->cirrus_linear_bitblt_io);
2998
2999 /* setup memory space */
3000 /* memory #0 LFB */
3001 /* memory #1 memory-mapped I/O */
3002 /* XXX: s->vga.vram_size must be a power of two */
3003 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
3004 if (device_id == CIRRUS_ID_CLGD5446) {
3005 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
3006 }
3007 }
3008
3009 static Property pci_vga_cirrus_properties[] = {
3010 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
3011 cirrus_vga.vga.vram_size_mb, 4),
3012 DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState,
3013 cirrus_vga.enable_blitter, true),
3014 DEFINE_PROP_BOOL("global-vmstate", struct PCICirrusVGAState,
3015 cirrus_vga.vga.global_vmstate, false),
3016 DEFINE_PROP_END_OF_LIST(),
3017 };
3018
3019 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
3020 {
3021 DeviceClass *dc = DEVICE_CLASS(klass);
3022 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
3023
3024 k->realize = pci_cirrus_vga_realize;
3025 k->romfile = VGABIOS_CIRRUS_FILENAME;
3026 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3027 k->device_id = CIRRUS_ID_CLGD5446;
3028 k->class_id = PCI_CLASS_DISPLAY_VGA;
3029 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
3030 dc->desc = "Cirrus CLGD 54xx VGA";
3031 dc->vmsd = &vmstate_pci_cirrus_vga;
3032 dc->props = pci_vga_cirrus_properties;
3033 dc->hotpluggable = false;
3034 }
3035
3036 static const TypeInfo cirrus_vga_info = {
3037 .name = TYPE_PCI_CIRRUS_VGA,
3038 .parent = TYPE_PCI_DEVICE,
3039 .instance_size = sizeof(PCICirrusVGAState),
3040 .class_init = cirrus_vga_class_init,
3041 .interfaces = (InterfaceInfo[]) {
3042 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
3043 { },
3044 },
3045 };
3046
3047 static void cirrus_vga_register_types(void)
3048 {
3049 type_register_static(&cirrus_vga_info);
3050 }
3051
3052 type_init(cirrus_vga_register_types)
AR7 emulation for QEMU