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aio_ctx_check: follow CODING_STYLE
[qemu/ar7.git] / hw / display / cirrus_vga.c
blob3d712d592fff495e6c37152acbaceccf48841e82
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 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "qemu/osdep.h"
30 #include "qapi/error.h"
31 #include "hw/hw.h"
32 #include "hw/pci/pci.h"
33 #include "ui/console.h"
34 #include "ui/pixel_ops.h"
35 #include "vga_int.h"
36 #include "hw/loader.h"
37
38 /*
39 * TODO:
40 * - destination write mask support not complete (bits 5..7)
41 * - optimize linear mappings
42 * - optimize bitblt functions
43 */
44
45 //#define DEBUG_CIRRUS
46 //#define DEBUG_BITBLT
47
48 /***************************************
49 *
50 * definitions
51 *
52 ***************************************/
53
54 // ID
55 #define CIRRUS_ID_CLGD5422 (0x23<<2)
56 #define CIRRUS_ID_CLGD5426 (0x24<<2)
57 #define CIRRUS_ID_CLGD5424 (0x25<<2)
58 #define CIRRUS_ID_CLGD5428 (0x26<<2)
59 #define CIRRUS_ID_CLGD5430 (0x28<<2)
60 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
61 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
62 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
63
64 // sequencer 0x07
65 #define CIRRUS_SR7_BPP_VGA 0x00
66 #define CIRRUS_SR7_BPP_SVGA 0x01
67 #define CIRRUS_SR7_BPP_MASK 0x0e
68 #define CIRRUS_SR7_BPP_8 0x00
69 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
70 #define CIRRUS_SR7_BPP_24 0x04
71 #define CIRRUS_SR7_BPP_16 0x06
72 #define CIRRUS_SR7_BPP_32 0x08
73 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
74
75 // sequencer 0x0f
76 #define CIRRUS_MEMSIZE_512k 0x08
77 #define CIRRUS_MEMSIZE_1M 0x10
78 #define CIRRUS_MEMSIZE_2M 0x18
79 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
80
81 // sequencer 0x12
82 #define CIRRUS_CURSOR_SHOW 0x01
83 #define CIRRUS_CURSOR_HIDDENPEL 0x02
84 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
85
86 // sequencer 0x17
87 #define CIRRUS_BUSTYPE_VLBFAST 0x10
88 #define CIRRUS_BUSTYPE_PCI 0x20
89 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
90 #define CIRRUS_BUSTYPE_ISA 0x38
91 #define CIRRUS_MMIO_ENABLE 0x04
92 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
93 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
94
95 // control 0x0b
96 #define CIRRUS_BANKING_DUAL 0x01
97 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
98
99 // control 0x30
100 #define CIRRUS_BLTMODE_BACKWARDS 0x01
101 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
102 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
103 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
104 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
105 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
106 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
107 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
108 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
109 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
110 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
111
112 // control 0x31
113 #define CIRRUS_BLT_BUSY 0x01
114 #define CIRRUS_BLT_START 0x02
115 #define CIRRUS_BLT_RESET 0x04
116 #define CIRRUS_BLT_FIFOUSED 0x10
117 #define CIRRUS_BLT_AUTOSTART 0x80
118
119 // control 0x32
120 #define CIRRUS_ROP_0 0x00
121 #define CIRRUS_ROP_SRC_AND_DST 0x05
122 #define CIRRUS_ROP_NOP 0x06
123 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
124 #define CIRRUS_ROP_NOTDST 0x0b
125 #define CIRRUS_ROP_SRC 0x0d
126 #define CIRRUS_ROP_1 0x0e
127 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
128 #define CIRRUS_ROP_SRC_XOR_DST 0x59
129 #define CIRRUS_ROP_SRC_OR_DST 0x6d
130 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
131 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
132 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
133 #define CIRRUS_ROP_NOTSRC 0xd0
134 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
135 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
136
137 #define CIRRUS_ROP_NOP_INDEX 2
138 #define CIRRUS_ROP_SRC_INDEX 5
139
140 // control 0x33
141 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
142 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
143 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
144
145 // memory-mapped IO
146 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
147 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
148 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
149 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
150 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
151 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
152 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
153 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
154 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
155 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
156 #define CIRRUS_MMIO_BLTROP 0x1a // byte
157 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
159 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
160 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
161 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
163 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
167 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
168 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
169 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
170 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
171 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
172 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
173 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
174 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
175
176 #define CIRRUS_PNPMMIO_SIZE 0x1000
177
178 struct CirrusVGAState;
179 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
180 uint8_t * dst, const uint8_t * src,
181 int dstpitch, int srcpitch,
182 int bltwidth, int bltheight);
183 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
184 uint8_t *dst, int dst_pitch, int width, int height);
185
186 typedef struct CirrusVGAState {
187 VGACommonState vga;
188
189 MemoryRegion cirrus_vga_io;
190 MemoryRegion cirrus_linear_io;
191 MemoryRegion cirrus_linear_bitblt_io;
192 MemoryRegion cirrus_mmio_io;
193 MemoryRegion pci_bar;
194 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
195 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
196 MemoryRegion low_mem; /* always mapped, overridden by: */
197 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
198 uint32_t cirrus_addr_mask;
199 uint32_t linear_mmio_mask;
200 uint8_t cirrus_shadow_gr0;
201 uint8_t cirrus_shadow_gr1;
202 uint8_t cirrus_hidden_dac_lockindex;
203 uint8_t cirrus_hidden_dac_data;
204 uint32_t cirrus_bank_base[2];
205 uint32_t cirrus_bank_limit[2];
206 uint8_t cirrus_hidden_palette[48];
207 int cirrus_blt_pixelwidth;
208 int cirrus_blt_width;
209 int cirrus_blt_height;
210 int cirrus_blt_dstpitch;
211 int cirrus_blt_srcpitch;
212 uint32_t cirrus_blt_fgcol;
213 uint32_t cirrus_blt_bgcol;
214 uint32_t cirrus_blt_dstaddr;
215 uint32_t cirrus_blt_srcaddr;
216 uint8_t cirrus_blt_mode;
217 uint8_t cirrus_blt_modeext;
218 cirrus_bitblt_rop_t cirrus_rop;
219 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
220 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
221 uint8_t *cirrus_srcptr;
222 uint8_t *cirrus_srcptr_end;
223 uint32_t cirrus_srccounter;
224 /* hwcursor display state */
225 int last_hw_cursor_size;
226 int last_hw_cursor_x;
227 int last_hw_cursor_y;
228 int last_hw_cursor_y_start;
229 int last_hw_cursor_y_end;
230 int real_vram_size; /* XXX: suppress that */
231 int device_id;
232 int bustype;
233 } CirrusVGAState;
234
235 typedef struct PCICirrusVGAState {
236 PCIDevice dev;
237 CirrusVGAState cirrus_vga;
238 } PCICirrusVGAState;
239
240 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
241 #define PCI_CIRRUS_VGA(obj) \
242 OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA)
243
244 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
245 #define ISA_CIRRUS_VGA(obj) \
246 OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
247
248 typedef struct ISACirrusVGAState {
249 ISADevice parent_obj;
250
251 CirrusVGAState cirrus_vga;
252 } ISACirrusVGAState;
253
254 static uint8_t rop_to_index[256];
255
256 /***************************************
257 *
258 * prototypes.
259 *
260 ***************************************/
261
262
263 static void cirrus_bitblt_reset(CirrusVGAState *s);
264 static void cirrus_update_memory_access(CirrusVGAState *s);
265
266 /***************************************
267 *
268 * raster operations
269 *
270 ***************************************/
271
272 static bool blit_region_is_unsafe(struct CirrusVGAState *s,
273 int32_t pitch, int32_t addr)
274 {
275 if (pitch < 0) {
276 int64_t min = addr
277 + ((int64_t)s->cirrus_blt_height-1) * pitch;
278 int32_t max = addr
279 + s->cirrus_blt_width;
280 if (min < 0 || max > s->vga.vram_size) {
281 return true;
282 }
283 } else {
284 int64_t max = addr
285 + ((int64_t)s->cirrus_blt_height-1) * pitch
286 + s->cirrus_blt_width;
287 if (max > s->vga.vram_size) {
288 return true;
289 }
290 }
291 return false;
292 }
293
294 static bool blit_is_unsafe(struct CirrusVGAState *s)
295 {
296 /* should be the case, see cirrus_bitblt_start */
297 assert(s->cirrus_blt_width > 0);
298 assert(s->cirrus_blt_height > 0);
299
300 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
301 return true;
302 }
303
304 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
305 s->cirrus_blt_dstaddr & s->cirrus_addr_mask)) {
306 return true;
307 }
308 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
309 s->cirrus_blt_srcaddr & s->cirrus_addr_mask)) {
310 return true;
311 }
312
313 return false;
314 }
315
316 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
317 uint8_t *dst,const uint8_t *src,
318 int dstpitch,int srcpitch,
319 int bltwidth,int bltheight)
320 {
321 }
322
323 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
324 uint8_t *dst,
325 int dstpitch, int bltwidth,int bltheight)
326 {
327 }
328
329 #define ROP_NAME 0
330 #define ROP_FN(d, s) 0
331 #include "cirrus_vga_rop.h"
332
333 #define ROP_NAME src_and_dst
334 #define ROP_FN(d, s) (s) & (d)
335 #include "cirrus_vga_rop.h"
336
337 #define ROP_NAME src_and_notdst
338 #define ROP_FN(d, s) (s) & (~(d))
339 #include "cirrus_vga_rop.h"
340
341 #define ROP_NAME notdst
342 #define ROP_FN(d, s) ~(d)
343 #include "cirrus_vga_rop.h"
344
345 #define ROP_NAME src
346 #define ROP_FN(d, s) s
347 #include "cirrus_vga_rop.h"
348
349 #define ROP_NAME 1
350 #define ROP_FN(d, s) ~0
351 #include "cirrus_vga_rop.h"
352
353 #define ROP_NAME notsrc_and_dst
354 #define ROP_FN(d, s) (~(s)) & (d)
355 #include "cirrus_vga_rop.h"
356
357 #define ROP_NAME src_xor_dst
358 #define ROP_FN(d, s) (s) ^ (d)
359 #include "cirrus_vga_rop.h"
360
361 #define ROP_NAME src_or_dst
362 #define ROP_FN(d, s) (s) | (d)
363 #include "cirrus_vga_rop.h"
364
365 #define ROP_NAME notsrc_or_notdst
366 #define ROP_FN(d, s) (~(s)) | (~(d))
367 #include "cirrus_vga_rop.h"
368
369 #define ROP_NAME src_notxor_dst
370 #define ROP_FN(d, s) ~((s) ^ (d))
371 #include "cirrus_vga_rop.h"
372
373 #define ROP_NAME src_or_notdst
374 #define ROP_FN(d, s) (s) | (~(d))
375 #include "cirrus_vga_rop.h"
376
377 #define ROP_NAME notsrc
378 #define ROP_FN(d, s) (~(s))
379 #include "cirrus_vga_rop.h"
380
381 #define ROP_NAME notsrc_or_dst
382 #define ROP_FN(d, s) (~(s)) | (d)
383 #include "cirrus_vga_rop.h"
384
385 #define ROP_NAME notsrc_and_notdst
386 #define ROP_FN(d, s) (~(s)) & (~(d))
387 #include "cirrus_vga_rop.h"
388
389 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
390 cirrus_bitblt_rop_fwd_0,
391 cirrus_bitblt_rop_fwd_src_and_dst,
392 cirrus_bitblt_rop_nop,
393 cirrus_bitblt_rop_fwd_src_and_notdst,
394 cirrus_bitblt_rop_fwd_notdst,
395 cirrus_bitblt_rop_fwd_src,
396 cirrus_bitblt_rop_fwd_1,
397 cirrus_bitblt_rop_fwd_notsrc_and_dst,
398 cirrus_bitblt_rop_fwd_src_xor_dst,
399 cirrus_bitblt_rop_fwd_src_or_dst,
400 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
401 cirrus_bitblt_rop_fwd_src_notxor_dst,
402 cirrus_bitblt_rop_fwd_src_or_notdst,
403 cirrus_bitblt_rop_fwd_notsrc,
404 cirrus_bitblt_rop_fwd_notsrc_or_dst,
405 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
406 };
407
408 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
409 cirrus_bitblt_rop_bkwd_0,
410 cirrus_bitblt_rop_bkwd_src_and_dst,
411 cirrus_bitblt_rop_nop,
412 cirrus_bitblt_rop_bkwd_src_and_notdst,
413 cirrus_bitblt_rop_bkwd_notdst,
414 cirrus_bitblt_rop_bkwd_src,
415 cirrus_bitblt_rop_bkwd_1,
416 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
417 cirrus_bitblt_rop_bkwd_src_xor_dst,
418 cirrus_bitblt_rop_bkwd_src_or_dst,
419 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
420 cirrus_bitblt_rop_bkwd_src_notxor_dst,
421 cirrus_bitblt_rop_bkwd_src_or_notdst,
422 cirrus_bitblt_rop_bkwd_notsrc,
423 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
424 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
425 };
426
427 #define TRANSP_ROP(name) {\
428 name ## _8,\
429 name ## _16,\
430 }
431 #define TRANSP_NOP(func) {\
432 func,\
433 func,\
434 }
435
436 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
439 TRANSP_NOP(cirrus_bitblt_rop_nop),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
447 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
448 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
449 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
450 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
451 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
452 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
453 };
454
455 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
458 TRANSP_NOP(cirrus_bitblt_rop_nop),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
465 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
466 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
467 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
468 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
469 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
470 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
471 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
472 };
473
474 #define ROP2(name) {\
475 name ## _8,\
476 name ## _16,\
477 name ## _24,\
478 name ## _32,\
479 }
480
481 #define ROP_NOP2(func) {\
482 func,\
483 func,\
484 func,\
485 func,\
486 }
487
488 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
489 ROP2(cirrus_patternfill_0),
490 ROP2(cirrus_patternfill_src_and_dst),
491 ROP_NOP2(cirrus_bitblt_rop_nop),
492 ROP2(cirrus_patternfill_src_and_notdst),
493 ROP2(cirrus_patternfill_notdst),
494 ROP2(cirrus_patternfill_src),
495 ROP2(cirrus_patternfill_1),
496 ROP2(cirrus_patternfill_notsrc_and_dst),
497 ROP2(cirrus_patternfill_src_xor_dst),
498 ROP2(cirrus_patternfill_src_or_dst),
499 ROP2(cirrus_patternfill_notsrc_or_notdst),
500 ROP2(cirrus_patternfill_src_notxor_dst),
501 ROP2(cirrus_patternfill_src_or_notdst),
502 ROP2(cirrus_patternfill_notsrc),
503 ROP2(cirrus_patternfill_notsrc_or_dst),
504 ROP2(cirrus_patternfill_notsrc_and_notdst),
505 };
506
507 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
508 ROP2(cirrus_colorexpand_transp_0),
509 ROP2(cirrus_colorexpand_transp_src_and_dst),
510 ROP_NOP2(cirrus_bitblt_rop_nop),
511 ROP2(cirrus_colorexpand_transp_src_and_notdst),
512 ROP2(cirrus_colorexpand_transp_notdst),
513 ROP2(cirrus_colorexpand_transp_src),
514 ROP2(cirrus_colorexpand_transp_1),
515 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
516 ROP2(cirrus_colorexpand_transp_src_xor_dst),
517 ROP2(cirrus_colorexpand_transp_src_or_dst),
518 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
519 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
520 ROP2(cirrus_colorexpand_transp_src_or_notdst),
521 ROP2(cirrus_colorexpand_transp_notsrc),
522 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
523 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
524 };
525
526 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
527 ROP2(cirrus_colorexpand_0),
528 ROP2(cirrus_colorexpand_src_and_dst),
529 ROP_NOP2(cirrus_bitblt_rop_nop),
530 ROP2(cirrus_colorexpand_src_and_notdst),
531 ROP2(cirrus_colorexpand_notdst),
532 ROP2(cirrus_colorexpand_src),
533 ROP2(cirrus_colorexpand_1),
534 ROP2(cirrus_colorexpand_notsrc_and_dst),
535 ROP2(cirrus_colorexpand_src_xor_dst),
536 ROP2(cirrus_colorexpand_src_or_dst),
537 ROP2(cirrus_colorexpand_notsrc_or_notdst),
538 ROP2(cirrus_colorexpand_src_notxor_dst),
539 ROP2(cirrus_colorexpand_src_or_notdst),
540 ROP2(cirrus_colorexpand_notsrc),
541 ROP2(cirrus_colorexpand_notsrc_or_dst),
542 ROP2(cirrus_colorexpand_notsrc_and_notdst),
543 };
544
545 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
546 ROP2(cirrus_colorexpand_pattern_transp_0),
547 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
548 ROP_NOP2(cirrus_bitblt_rop_nop),
549 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
550 ROP2(cirrus_colorexpand_pattern_transp_notdst),
551 ROP2(cirrus_colorexpand_pattern_transp_src),
552 ROP2(cirrus_colorexpand_pattern_transp_1),
553 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
554 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
555 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
556 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
557 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
558 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
559 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
560 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
561 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
562 };
563
564 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
565 ROP2(cirrus_colorexpand_pattern_0),
566 ROP2(cirrus_colorexpand_pattern_src_and_dst),
567 ROP_NOP2(cirrus_bitblt_rop_nop),
568 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
569 ROP2(cirrus_colorexpand_pattern_notdst),
570 ROP2(cirrus_colorexpand_pattern_src),
571 ROP2(cirrus_colorexpand_pattern_1),
572 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
573 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
574 ROP2(cirrus_colorexpand_pattern_src_or_dst),
575 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
576 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
577 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
578 ROP2(cirrus_colorexpand_pattern_notsrc),
579 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
580 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
581 };
582
583 static const cirrus_fill_t cirrus_fill[16][4] = {
584 ROP2(cirrus_fill_0),
585 ROP2(cirrus_fill_src_and_dst),
586 ROP_NOP2(cirrus_bitblt_fill_nop),
587 ROP2(cirrus_fill_src_and_notdst),
588 ROP2(cirrus_fill_notdst),
589 ROP2(cirrus_fill_src),
590 ROP2(cirrus_fill_1),
591 ROP2(cirrus_fill_notsrc_and_dst),
592 ROP2(cirrus_fill_src_xor_dst),
593 ROP2(cirrus_fill_src_or_dst),
594 ROP2(cirrus_fill_notsrc_or_notdst),
595 ROP2(cirrus_fill_src_notxor_dst),
596 ROP2(cirrus_fill_src_or_notdst),
597 ROP2(cirrus_fill_notsrc),
598 ROP2(cirrus_fill_notsrc_or_dst),
599 ROP2(cirrus_fill_notsrc_and_notdst),
600 };
601
602 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
603 {
604 unsigned int color;
605 switch (s->cirrus_blt_pixelwidth) {
606 case 1:
607 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
608 break;
609 case 2:
610 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
611 s->cirrus_blt_fgcol = le16_to_cpu(color);
612 break;
613 case 3:
614 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
615 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
616 break;
617 default:
618 case 4:
619 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
620 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
621 s->cirrus_blt_fgcol = le32_to_cpu(color);
622 break;
623 }
624 }
625
626 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
627 {
628 unsigned int color;
629 switch (s->cirrus_blt_pixelwidth) {
630 case 1:
631 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
632 break;
633 case 2:
634 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
635 s->cirrus_blt_bgcol = le16_to_cpu(color);
636 break;
637 case 3:
638 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
639 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
640 break;
641 default:
642 case 4:
643 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
644 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
645 s->cirrus_blt_bgcol = le32_to_cpu(color);
646 break;
647 }
648 }
649
650 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
651 int off_pitch, int bytesperline,
652 int lines)
653 {
654 int y;
655 int off_cur;
656 int off_cur_end;
657
658 for (y = 0; y < lines; y++) {
659 off_cur = off_begin;
660 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
661 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
662 off_begin += off_pitch;
663 }
664 }
665
666 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
667 const uint8_t * src)
668 {
669 uint8_t *dst;
670
671 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
672
673 if (blit_is_unsafe(s))
674 return 0;
675
676 (*s->cirrus_rop) (s, dst, src,
677 s->cirrus_blt_dstpitch, 0,
678 s->cirrus_blt_width, s->cirrus_blt_height);
679 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
680 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
681 s->cirrus_blt_height);
682 return 1;
683 }
684
685 /* fill */
686
687 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
688 {
689 cirrus_fill_t rop_func;
690
691 if (blit_is_unsafe(s)) {
692 return 0;
693 }
694 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
695 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
696 s->cirrus_blt_dstpitch,
697 s->cirrus_blt_width, s->cirrus_blt_height);
698 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
699 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
700 s->cirrus_blt_height);
701 cirrus_bitblt_reset(s);
702 return 1;
703 }
704
705 /***************************************
706 *
707 * bitblt (video-to-video)
708 *
709 ***************************************/
710
711 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
712 {
713 return cirrus_bitblt_common_patterncopy(s,
714 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
715 s->cirrus_addr_mask));
716 }
717
718 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
719 {
720 int sx = 0, sy = 0;
721 int dx = 0, dy = 0;
722 int depth = 0;
723 int notify = 0;
724
725 /* make sure to only copy if it's a plain copy ROP */
726 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
727 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
728
729 int width, height;
730
731 depth = s->vga.get_bpp(&s->vga) / 8;
732 s->vga.get_resolution(&s->vga, &width, &height);
733
734 /* extra x, y */
735 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
736 sy = (src / ABS(s->cirrus_blt_srcpitch));
737 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
738 dy = (dst / ABS(s->cirrus_blt_dstpitch));
739
740 /* normalize width */
741 w /= depth;
742
743 /* if we're doing a backward copy, we have to adjust
744 our x/y to be the upper left corner (instead of the lower
745 right corner) */
746 if (s->cirrus_blt_dstpitch < 0) {
747 sx -= (s->cirrus_blt_width / depth) - 1;
748 dx -= (s->cirrus_blt_width / depth) - 1;
749 sy -= s->cirrus_blt_height - 1;
750 dy -= s->cirrus_blt_height - 1;
751 }
752
753 /* are we in the visible portion of memory? */
754 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
755 (sx + w) <= width && (sy + h) <= height &&
756 (dx + w) <= width && (dy + h) <= height) {
757 notify = 1;
758 }
759 }
760
761 /* we have to flush all pending changes so that the copy
762 is generated at the appropriate moment in time */
763 if (notify)
764 graphic_hw_update(s->vga.con);
765
766 (*s->cirrus_rop) (s, s->vga.vram_ptr +
767 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
768 s->vga.vram_ptr +
769 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
770 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
771 s->cirrus_blt_width, s->cirrus_blt_height);
772
773 if (notify) {
774 qemu_console_copy(s->vga.con,
775 sx, sy, dx, dy,
776 s->cirrus_blt_width / depth,
777 s->cirrus_blt_height);
778 }
779
780 /* we don't have to notify the display that this portion has
781 changed since qemu_console_copy implies this */
782
783 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
784 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
785 s->cirrus_blt_height);
786 }
787
788 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
789 {
790 if (blit_is_unsafe(s))
791 return 0;
792
793 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 return 1;
798 }
799
800 /***************************************
801 *
802 * bitblt (cpu-to-video)
803 *
804 ***************************************/
805
806 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
807 {
808 int copy_count;
809 uint8_t *end_ptr;
810
811 if (s->cirrus_srccounter > 0) {
812 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
813 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
814 the_end:
815 s->cirrus_srccounter = 0;
816 cirrus_bitblt_reset(s);
817 } else {
818 /* at least one scan line */
819 do {
820 (*s->cirrus_rop)(s, s->vga.vram_ptr +
821 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
822 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
823 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
824 s->cirrus_blt_width, 1);
825 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
826 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
827 if (s->cirrus_srccounter <= 0)
828 goto the_end;
829 /* more bytes than needed can be transferred because of
830 word alignment, so we keep them for the next line */
831 /* XXX: keep alignment to speed up transfer */
832 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
833 copy_count = s->cirrus_srcptr_end - end_ptr;
834 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
835 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
836 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
837 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
838 }
839 }
840 }
841
842 /***************************************
843 *
844 * bitblt wrapper
845 *
846 ***************************************/
847
848 static void cirrus_bitblt_reset(CirrusVGAState * s)
849 {
850 int need_update;
851
852 s->vga.gr[0x31] &=
853 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
854 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
855 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
856 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
857 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
858 s->cirrus_srccounter = 0;
859 if (!need_update)
860 return;
861 cirrus_update_memory_access(s);
862 }
863
864 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
865 {
866 int w;
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 s->cirrus_srcptr = s->cirrus_bltbuf;
894 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
895 cirrus_update_memory_access(s);
896 return 1;
897 }
898
899 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
900 {
901 /* XXX */
902 #ifdef DEBUG_BITBLT
903 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
904 #endif
905 return 0;
906 }
907
908 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
909 {
910 int ret;
911
912 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
913 ret = cirrus_bitblt_videotovideo_patterncopy(s);
914 } else {
915 ret = cirrus_bitblt_videotovideo_copy(s);
916 }
917 if (ret)
918 cirrus_bitblt_reset(s);
919 return ret;
920 }
921
922 static void cirrus_bitblt_start(CirrusVGAState * s)
923 {
924 uint8_t blt_rop;
925
926 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
927
928 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
929 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
930 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
931 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
932 s->cirrus_blt_dstaddr =
933 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
934 s->cirrus_blt_srcaddr =
935 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
936 s->cirrus_blt_mode = s->vga.gr[0x30];
937 s->cirrus_blt_modeext = s->vga.gr[0x33];
938 blt_rop = s->vga.gr[0x32];
939
940 #ifdef DEBUG_BITBLT
941 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",
942 blt_rop,
943 s->cirrus_blt_mode,
944 s->cirrus_blt_modeext,
945 s->cirrus_blt_width,
946 s->cirrus_blt_height,
947 s->cirrus_blt_dstpitch,
948 s->cirrus_blt_srcpitch,
949 s->cirrus_blt_dstaddr,
950 s->cirrus_blt_srcaddr,
951 s->vga.gr[0x2f]);
952 #endif
953
954 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
955 case CIRRUS_BLTMODE_PIXELWIDTH8:
956 s->cirrus_blt_pixelwidth = 1;
957 break;
958 case CIRRUS_BLTMODE_PIXELWIDTH16:
959 s->cirrus_blt_pixelwidth = 2;
960 break;
961 case CIRRUS_BLTMODE_PIXELWIDTH24:
962 s->cirrus_blt_pixelwidth = 3;
963 break;
964 case CIRRUS_BLTMODE_PIXELWIDTH32:
965 s->cirrus_blt_pixelwidth = 4;
966 break;
967 default:
968 #ifdef DEBUG_BITBLT
969 printf("cirrus: bitblt - pixel width is unknown\n");
970 #endif
971 goto bitblt_ignore;
972 }
973 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
974
975 if ((s->
976 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
977 CIRRUS_BLTMODE_MEMSYSDEST))
978 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
979 #ifdef DEBUG_BITBLT
980 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
981 #endif
982 goto bitblt_ignore;
983 }
984
985 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
986 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
987 CIRRUS_BLTMODE_TRANSPARENTCOMP |
988 CIRRUS_BLTMODE_PATTERNCOPY |
989 CIRRUS_BLTMODE_COLOREXPAND)) ==
990 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
991 cirrus_bitblt_fgcol(s);
992 cirrus_bitblt_solidfill(s, blt_rop);
993 } else {
994 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
995 CIRRUS_BLTMODE_PATTERNCOPY)) ==
996 CIRRUS_BLTMODE_COLOREXPAND) {
997
998 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
999 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1000 cirrus_bitblt_bgcol(s);
1001 else
1002 cirrus_bitblt_fgcol(s);
1003 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1004 } else {
1005 cirrus_bitblt_fgcol(s);
1006 cirrus_bitblt_bgcol(s);
1007 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1008 }
1009 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1010 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1011 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1012 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1013 cirrus_bitblt_bgcol(s);
1014 else
1015 cirrus_bitblt_fgcol(s);
1016 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1017 } else {
1018 cirrus_bitblt_fgcol(s);
1019 cirrus_bitblt_bgcol(s);
1020 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1021 }
1022 } else {
1023 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1024 }
1025 } else {
1026 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1027 if (s->cirrus_blt_pixelwidth > 2) {
1028 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1029 goto bitblt_ignore;
1030 }
1031 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1032 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1033 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1034 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1035 } else {
1036 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1037 }
1038 } else {
1039 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1040 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1041 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1042 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1043 } else {
1044 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1045 }
1046 }
1047 }
1048 // setup bitblt engine.
1049 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1050 if (!cirrus_bitblt_cputovideo(s))
1051 goto bitblt_ignore;
1052 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1053 if (!cirrus_bitblt_videotocpu(s))
1054 goto bitblt_ignore;
1055 } else {
1056 if (!cirrus_bitblt_videotovideo(s))
1057 goto bitblt_ignore;
1058 }
1059 }
1060 return;
1061 bitblt_ignore:;
1062 cirrus_bitblt_reset(s);
1063 }
1064
1065 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1066 {
1067 unsigned old_value;
1068
1069 old_value = s->vga.gr[0x31];
1070 s->vga.gr[0x31] = reg_value;
1071
1072 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1073 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1074 cirrus_bitblt_reset(s);
1075 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1076 ((reg_value & CIRRUS_BLT_START) != 0)) {
1077 cirrus_bitblt_start(s);
1078 }
1079 }
1080
1081
1082 /***************************************
1083 *
1084 * basic parameters
1085 *
1086 ***************************************/
1087
1088 static void cirrus_get_offsets(VGACommonState *s1,
1089 uint32_t *pline_offset,
1090 uint32_t *pstart_addr,
1091 uint32_t *pline_compare)
1092 {
1093 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1094 uint32_t start_addr, line_offset, line_compare;
1095
1096 line_offset = s->vga.cr[0x13]
1097 | ((s->vga.cr[0x1b] & 0x10) << 4);
1098 line_offset <<= 3;
1099 *pline_offset = line_offset;
1100
1101 start_addr = (s->vga.cr[0x0c] << 8)
1102 | s->vga.cr[0x0d]
1103 | ((s->vga.cr[0x1b] & 0x01) << 16)
1104 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1105 | ((s->vga.cr[0x1d] & 0x80) << 12);
1106 *pstart_addr = start_addr;
1107
1108 line_compare = s->vga.cr[0x18] |
1109 ((s->vga.cr[0x07] & 0x10) << 4) |
1110 ((s->vga.cr[0x09] & 0x40) << 3);
1111 *pline_compare = line_compare;
1112 }
1113
1114 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1115 {
1116 uint32_t ret = 16;
1117
1118 switch (s->cirrus_hidden_dac_data & 0xf) {
1119 case 0:
1120 ret = 15;
1121 break; /* Sierra HiColor */
1122 case 1:
1123 ret = 16;
1124 break; /* XGA HiColor */
1125 default:
1126 #ifdef DEBUG_CIRRUS
1127 printf("cirrus: invalid DAC value %x in 16bpp\n",
1128 (s->cirrus_hidden_dac_data & 0xf));
1129 #endif
1130 ret = 15; /* XXX */
1131 break;
1132 }
1133 return ret;
1134 }
1135
1136 static int cirrus_get_bpp(VGACommonState *s1)
1137 {
1138 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1139 uint32_t ret = 8;
1140
1141 if ((s->vga.sr[0x07] & 0x01) != 0) {
1142 /* Cirrus SVGA */
1143 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1144 case CIRRUS_SR7_BPP_8:
1145 ret = 8;
1146 break;
1147 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1148 ret = cirrus_get_bpp16_depth(s);
1149 break;
1150 case CIRRUS_SR7_BPP_24:
1151 ret = 24;
1152 break;
1153 case CIRRUS_SR7_BPP_16:
1154 ret = cirrus_get_bpp16_depth(s);
1155 break;
1156 case CIRRUS_SR7_BPP_32:
1157 ret = 32;
1158 break;
1159 default:
1160 #ifdef DEBUG_CIRRUS
1161 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1162 #endif
1163 ret = 8;
1164 break;
1165 }
1166 } else {
1167 /* VGA */
1168 ret = 0;
1169 }
1170
1171 return ret;
1172 }
1173
1174 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1175 {
1176 int width, height;
1177
1178 width = (s->cr[0x01] + 1) * 8;
1179 height = s->cr[0x12] |
1180 ((s->cr[0x07] & 0x02) << 7) |
1181 ((s->cr[0x07] & 0x40) << 3);
1182 height = (height + 1);
1183 /* interlace support */
1184 if (s->cr[0x1a] & 0x01)
1185 height = height * 2;
1186 *pwidth = width;
1187 *pheight = height;
1188 }
1189
1190 /***************************************
1191 *
1192 * bank memory
1193 *
1194 ***************************************/
1195
1196 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1197 {
1198 unsigned offset;
1199 unsigned limit;
1200
1201 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1202 offset = s->vga.gr[0x09 + bank_index];
1203 else /* single bank */
1204 offset = s->vga.gr[0x09];
1205
1206 if ((s->vga.gr[0x0b] & 0x20) != 0)
1207 offset <<= 14;
1208 else
1209 offset <<= 12;
1210
1211 if (s->real_vram_size <= offset)
1212 limit = 0;
1213 else
1214 limit = s->real_vram_size - offset;
1215
1216 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1217 if (limit > 0x8000) {
1218 offset += 0x8000;
1219 limit -= 0x8000;
1220 } else {
1221 limit = 0;
1222 }
1223 }
1224
1225 if (limit > 0) {
1226 s->cirrus_bank_base[bank_index] = offset;
1227 s->cirrus_bank_limit[bank_index] = limit;
1228 } else {
1229 s->cirrus_bank_base[bank_index] = 0;
1230 s->cirrus_bank_limit[bank_index] = 0;
1231 }
1232 }
1233
1234 /***************************************
1235 *
1236 * I/O access between 0x3c4-0x3c5
1237 *
1238 ***************************************/
1239
1240 static int cirrus_vga_read_sr(CirrusVGAState * s)
1241 {
1242 switch (s->vga.sr_index) {
1243 case 0x00: // Standard VGA
1244 case 0x01: // Standard VGA
1245 case 0x02: // Standard VGA
1246 case 0x03: // Standard VGA
1247 case 0x04: // Standard VGA
1248 return s->vga.sr[s->vga.sr_index];
1249 case 0x06: // Unlock Cirrus extensions
1250 return s->vga.sr[s->vga.sr_index];
1251 case 0x10:
1252 case 0x30:
1253 case 0x50:
1254 case 0x70: // Graphics Cursor X
1255 case 0x90:
1256 case 0xb0:
1257 case 0xd0:
1258 case 0xf0: // Graphics Cursor X
1259 return s->vga.sr[0x10];
1260 case 0x11:
1261 case 0x31:
1262 case 0x51:
1263 case 0x71: // Graphics Cursor Y
1264 case 0x91:
1265 case 0xb1:
1266 case 0xd1:
1267 case 0xf1: // Graphics Cursor Y
1268 return s->vga.sr[0x11];
1269 case 0x05: // ???
1270 case 0x07: // Extended Sequencer Mode
1271 case 0x08: // EEPROM Control
1272 case 0x09: // Scratch Register 0
1273 case 0x0a: // Scratch Register 1
1274 case 0x0b: // VCLK 0
1275 case 0x0c: // VCLK 1
1276 case 0x0d: // VCLK 2
1277 case 0x0e: // VCLK 3
1278 case 0x0f: // DRAM Control
1279 case 0x12: // Graphics Cursor Attribute
1280 case 0x13: // Graphics Cursor Pattern Address
1281 case 0x14: // Scratch Register 2
1282 case 0x15: // Scratch Register 3
1283 case 0x16: // Performance Tuning Register
1284 case 0x17: // Configuration Readback and Extended Control
1285 case 0x18: // Signature Generator Control
1286 case 0x19: // Signal Generator Result
1287 case 0x1a: // Signal Generator Result
1288 case 0x1b: // VCLK 0 Denominator & Post
1289 case 0x1c: // VCLK 1 Denominator & Post
1290 case 0x1d: // VCLK 2 Denominator & Post
1291 case 0x1e: // VCLK 3 Denominator & Post
1292 case 0x1f: // BIOS Write Enable and MCLK select
1293 #ifdef DEBUG_CIRRUS
1294 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1295 #endif
1296 return s->vga.sr[s->vga.sr_index];
1297 default:
1298 #ifdef DEBUG_CIRRUS
1299 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1300 #endif
1301 return 0xff;
1302 break;
1303 }
1304 }
1305
1306 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1307 {
1308 switch (s->vga.sr_index) {
1309 case 0x00: // Standard VGA
1310 case 0x01: // Standard VGA
1311 case 0x02: // Standard VGA
1312 case 0x03: // Standard VGA
1313 case 0x04: // Standard VGA
1314 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1315 if (s->vga.sr_index == 1)
1316 s->vga.update_retrace_info(&s->vga);
1317 break;
1318 case 0x06: // Unlock Cirrus extensions
1319 val &= 0x17;
1320 if (val == 0x12) {
1321 s->vga.sr[s->vga.sr_index] = 0x12;
1322 } else {
1323 s->vga.sr[s->vga.sr_index] = 0x0f;
1324 }
1325 break;
1326 case 0x10:
1327 case 0x30:
1328 case 0x50:
1329 case 0x70: // Graphics Cursor X
1330 case 0x90:
1331 case 0xb0:
1332 case 0xd0:
1333 case 0xf0: // Graphics Cursor X
1334 s->vga.sr[0x10] = val;
1335 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1336 break;
1337 case 0x11:
1338 case 0x31:
1339 case 0x51:
1340 case 0x71: // Graphics Cursor Y
1341 case 0x91:
1342 case 0xb1:
1343 case 0xd1:
1344 case 0xf1: // Graphics Cursor Y
1345 s->vga.sr[0x11] = val;
1346 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1347 break;
1348 case 0x07: // Extended Sequencer Mode
1349 cirrus_update_memory_access(s);
1350 case 0x08: // EEPROM Control
1351 case 0x09: // Scratch Register 0
1352 case 0x0a: // Scratch Register 1
1353 case 0x0b: // VCLK 0
1354 case 0x0c: // VCLK 1
1355 case 0x0d: // VCLK 2
1356 case 0x0e: // VCLK 3
1357 case 0x0f: // DRAM Control
1358 case 0x13: // Graphics Cursor Pattern Address
1359 case 0x14: // Scratch Register 2
1360 case 0x15: // Scratch Register 3
1361 case 0x16: // Performance Tuning Register
1362 case 0x18: // Signature Generator Control
1363 case 0x19: // Signature Generator Result
1364 case 0x1a: // Signature Generator Result
1365 case 0x1b: // VCLK 0 Denominator & Post
1366 case 0x1c: // VCLK 1 Denominator & Post
1367 case 0x1d: // VCLK 2 Denominator & Post
1368 case 0x1e: // VCLK 3 Denominator & Post
1369 case 0x1f: // BIOS Write Enable and MCLK select
1370 s->vga.sr[s->vga.sr_index] = val;
1371 #ifdef DEBUG_CIRRUS
1372 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1373 s->vga.sr_index, val);
1374 #endif
1375 break;
1376 case 0x12: // Graphics Cursor Attribute
1377 s->vga.sr[0x12] = val;
1378 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
1379 #ifdef DEBUG_CIRRUS
1380 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
1381 val, s->vga.force_shadow);
1382 #endif
1383 break;
1384 case 0x17: // Configuration Readback and Extended Control
1385 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1386 | (val & 0xc7);
1387 cirrus_update_memory_access(s);
1388 break;
1389 default:
1390 #ifdef DEBUG_CIRRUS
1391 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1392 s->vga.sr_index, val);
1393 #endif
1394 break;
1395 }
1396 }
1397
1398 /***************************************
1399 *
1400 * I/O access at 0x3c6
1401 *
1402 ***************************************/
1403
1404 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1405 {
1406 if (++s->cirrus_hidden_dac_lockindex == 5) {
1407 s->cirrus_hidden_dac_lockindex = 0;
1408 return s->cirrus_hidden_dac_data;
1409 }
1410 return 0xff;
1411 }
1412
1413 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1414 {
1415 if (s->cirrus_hidden_dac_lockindex == 4) {
1416 s->cirrus_hidden_dac_data = reg_value;
1417 #if defined(DEBUG_CIRRUS)
1418 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1419 #endif
1420 }
1421 s->cirrus_hidden_dac_lockindex = 0;
1422 }
1423
1424 /***************************************
1425 *
1426 * I/O access at 0x3c9
1427 *
1428 ***************************************/
1429
1430 static int cirrus_vga_read_palette(CirrusVGAState * s)
1431 {
1432 int val;
1433
1434 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1435 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1436 s->vga.dac_sub_index];
1437 } else {
1438 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1439 }
1440 if (++s->vga.dac_sub_index == 3) {
1441 s->vga.dac_sub_index = 0;
1442 s->vga.dac_read_index++;
1443 }
1444 return val;
1445 }
1446
1447 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1448 {
1449 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1450 if (++s->vga.dac_sub_index == 3) {
1451 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1452 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1453 s->vga.dac_cache, 3);
1454 } else {
1455 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1456 }
1457 /* XXX update cursor */
1458 s->vga.dac_sub_index = 0;
1459 s->vga.dac_write_index++;
1460 }
1461 }
1462
1463 /***************************************
1464 *
1465 * I/O access between 0x3ce-0x3cf
1466 *
1467 ***************************************/
1468
1469 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1470 {
1471 switch (reg_index) {
1472 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1473 return s->cirrus_shadow_gr0;
1474 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1475 return s->cirrus_shadow_gr1;
1476 case 0x02: // Standard VGA
1477 case 0x03: // Standard VGA
1478 case 0x04: // Standard VGA
1479 case 0x06: // Standard VGA
1480 case 0x07: // Standard VGA
1481 case 0x08: // Standard VGA
1482 return s->vga.gr[s->vga.gr_index];
1483 case 0x05: // Standard VGA, Cirrus extended mode
1484 default:
1485 break;
1486 }
1487
1488 if (reg_index < 0x3a) {
1489 return s->vga.gr[reg_index];
1490 } else {
1491 #ifdef DEBUG_CIRRUS
1492 printf("cirrus: inport gr_index %02x\n", reg_index);
1493 #endif
1494 return 0xff;
1495 }
1496 }
1497
1498 static void
1499 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1500 {
1501 #if defined(DEBUG_BITBLT) && 0
1502 printf("gr%02x: %02x\n", reg_index, reg_value);
1503 #endif
1504 switch (reg_index) {
1505 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1506 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1507 s->cirrus_shadow_gr0 = reg_value;
1508 break;
1509 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1510 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1511 s->cirrus_shadow_gr1 = reg_value;
1512 break;
1513 case 0x02: // Standard VGA
1514 case 0x03: // Standard VGA
1515 case 0x04: // Standard VGA
1516 case 0x06: // Standard VGA
1517 case 0x07: // Standard VGA
1518 case 0x08: // Standard VGA
1519 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1520 break;
1521 case 0x05: // Standard VGA, Cirrus extended mode
1522 s->vga.gr[reg_index] = reg_value & 0x7f;
1523 cirrus_update_memory_access(s);
1524 break;
1525 case 0x09: // bank offset #0
1526 case 0x0A: // bank offset #1
1527 s->vga.gr[reg_index] = reg_value;
1528 cirrus_update_bank_ptr(s, 0);
1529 cirrus_update_bank_ptr(s, 1);
1530 cirrus_update_memory_access(s);
1531 break;
1532 case 0x0B:
1533 s->vga.gr[reg_index] = reg_value;
1534 cirrus_update_bank_ptr(s, 0);
1535 cirrus_update_bank_ptr(s, 1);
1536 cirrus_update_memory_access(s);
1537 break;
1538 case 0x10: // BGCOLOR 0x0000ff00
1539 case 0x11: // FGCOLOR 0x0000ff00
1540 case 0x12: // BGCOLOR 0x00ff0000
1541 case 0x13: // FGCOLOR 0x00ff0000
1542 case 0x14: // BGCOLOR 0xff000000
1543 case 0x15: // FGCOLOR 0xff000000
1544 case 0x20: // BLT WIDTH 0x0000ff
1545 case 0x22: // BLT HEIGHT 0x0000ff
1546 case 0x24: // BLT DEST PITCH 0x0000ff
1547 case 0x26: // BLT SRC PITCH 0x0000ff
1548 case 0x28: // BLT DEST ADDR 0x0000ff
1549 case 0x29: // BLT DEST ADDR 0x00ff00
1550 case 0x2c: // BLT SRC ADDR 0x0000ff
1551 case 0x2d: // BLT SRC ADDR 0x00ff00
1552 case 0x2f: // BLT WRITEMASK
1553 case 0x30: // BLT MODE
1554 case 0x32: // RASTER OP
1555 case 0x33: // BLT MODEEXT
1556 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1557 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1558 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1559 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1560 s->vga.gr[reg_index] = reg_value;
1561 break;
1562 case 0x21: // BLT WIDTH 0x001f00
1563 case 0x23: // BLT HEIGHT 0x001f00
1564 case 0x25: // BLT DEST PITCH 0x001f00
1565 case 0x27: // BLT SRC PITCH 0x001f00
1566 s->vga.gr[reg_index] = reg_value & 0x1f;
1567 break;
1568 case 0x2a: // BLT DEST ADDR 0x3f0000
1569 s->vga.gr[reg_index] = reg_value & 0x3f;
1570 /* if auto start mode, starts bit blt now */
1571 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1572 cirrus_bitblt_start(s);
1573 }
1574 break;
1575 case 0x2e: // BLT SRC ADDR 0x3f0000
1576 s->vga.gr[reg_index] = reg_value & 0x3f;
1577 break;
1578 case 0x31: // BLT STATUS/START
1579 cirrus_write_bitblt(s, reg_value);
1580 break;
1581 default:
1582 #ifdef DEBUG_CIRRUS
1583 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1584 reg_value);
1585 #endif
1586 break;
1587 }
1588 }
1589
1590 /***************************************
1591 *
1592 * I/O access between 0x3d4-0x3d5
1593 *
1594 ***************************************/
1595
1596 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1597 {
1598 switch (reg_index) {
1599 case 0x00: // Standard VGA
1600 case 0x01: // Standard VGA
1601 case 0x02: // Standard VGA
1602 case 0x03: // Standard VGA
1603 case 0x04: // Standard VGA
1604 case 0x05: // Standard VGA
1605 case 0x06: // Standard VGA
1606 case 0x07: // Standard VGA
1607 case 0x08: // Standard VGA
1608 case 0x09: // Standard VGA
1609 case 0x0a: // Standard VGA
1610 case 0x0b: // Standard VGA
1611 case 0x0c: // Standard VGA
1612 case 0x0d: // Standard VGA
1613 case 0x0e: // Standard VGA
1614 case 0x0f: // Standard VGA
1615 case 0x10: // Standard VGA
1616 case 0x11: // Standard VGA
1617 case 0x12: // Standard VGA
1618 case 0x13: // Standard VGA
1619 case 0x14: // Standard VGA
1620 case 0x15: // Standard VGA
1621 case 0x16: // Standard VGA
1622 case 0x17: // Standard VGA
1623 case 0x18: // Standard VGA
1624 return s->vga.cr[s->vga.cr_index];
1625 case 0x24: // Attribute Controller Toggle Readback (R)
1626 return (s->vga.ar_flip_flop << 7);
1627 case 0x19: // Interlace End
1628 case 0x1a: // Miscellaneous Control
1629 case 0x1b: // Extended Display Control
1630 case 0x1c: // Sync Adjust and Genlock
1631 case 0x1d: // Overlay Extended Control
1632 case 0x22: // Graphics Data Latches Readback (R)
1633 case 0x25: // Part Status
1634 case 0x27: // Part ID (R)
1635 return s->vga.cr[s->vga.cr_index];
1636 case 0x26: // Attribute Controller Index Readback (R)
1637 return s->vga.ar_index & 0x3f;
1638 break;
1639 default:
1640 #ifdef DEBUG_CIRRUS
1641 printf("cirrus: inport cr_index %02x\n", reg_index);
1642 #endif
1643 return 0xff;
1644 }
1645 }
1646
1647 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1648 {
1649 switch (s->vga.cr_index) {
1650 case 0x00: // Standard VGA
1651 case 0x01: // Standard VGA
1652 case 0x02: // Standard VGA
1653 case 0x03: // Standard VGA
1654 case 0x04: // Standard VGA
1655 case 0x05: // Standard VGA
1656 case 0x06: // Standard VGA
1657 case 0x07: // Standard VGA
1658 case 0x08: // Standard VGA
1659 case 0x09: // Standard VGA
1660 case 0x0a: // Standard VGA
1661 case 0x0b: // Standard VGA
1662 case 0x0c: // Standard VGA
1663 case 0x0d: // Standard VGA
1664 case 0x0e: // Standard VGA
1665 case 0x0f: // Standard VGA
1666 case 0x10: // Standard VGA
1667 case 0x11: // Standard VGA
1668 case 0x12: // Standard VGA
1669 case 0x13: // Standard VGA
1670 case 0x14: // Standard VGA
1671 case 0x15: // Standard VGA
1672 case 0x16: // Standard VGA
1673 case 0x17: // Standard VGA
1674 case 0x18: // Standard VGA
1675 /* handle CR0-7 protection */
1676 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1677 /* can always write bit 4 of CR7 */
1678 if (s->vga.cr_index == 7)
1679 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1680 return;
1681 }
1682 s->vga.cr[s->vga.cr_index] = reg_value;
1683 switch(s->vga.cr_index) {
1684 case 0x00:
1685 case 0x04:
1686 case 0x05:
1687 case 0x06:
1688 case 0x07:
1689 case 0x11:
1690 case 0x17:
1691 s->vga.update_retrace_info(&s->vga);
1692 break;
1693 }
1694 break;
1695 case 0x19: // Interlace End
1696 case 0x1a: // Miscellaneous Control
1697 case 0x1b: // Extended Display Control
1698 case 0x1c: // Sync Adjust and Genlock
1699 case 0x1d: // Overlay Extended Control
1700 s->vga.cr[s->vga.cr_index] = reg_value;
1701 #ifdef DEBUG_CIRRUS
1702 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1703 s->vga.cr_index, reg_value);
1704 #endif
1705 break;
1706 case 0x22: // Graphics Data Latches Readback (R)
1707 case 0x24: // Attribute Controller Toggle Readback (R)
1708 case 0x26: // Attribute Controller Index Readback (R)
1709 case 0x27: // Part ID (R)
1710 break;
1711 case 0x25: // Part Status
1712 default:
1713 #ifdef DEBUG_CIRRUS
1714 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1715 s->vga.cr_index, reg_value);
1716 #endif
1717 break;
1718 }
1719 }
1720
1721 /***************************************
1722 *
1723 * memory-mapped I/O (bitblt)
1724 *
1725 ***************************************/
1726
1727 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1728 {
1729 int value = 0xff;
1730
1731 switch (address) {
1732 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1733 value = cirrus_vga_read_gr(s, 0x00);
1734 break;
1735 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1736 value = cirrus_vga_read_gr(s, 0x10);
1737 break;
1738 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1739 value = cirrus_vga_read_gr(s, 0x12);
1740 break;
1741 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1742 value = cirrus_vga_read_gr(s, 0x14);
1743 break;
1744 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1745 value = cirrus_vga_read_gr(s, 0x01);
1746 break;
1747 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1748 value = cirrus_vga_read_gr(s, 0x11);
1749 break;
1750 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1751 value = cirrus_vga_read_gr(s, 0x13);
1752 break;
1753 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1754 value = cirrus_vga_read_gr(s, 0x15);
1755 break;
1756 case (CIRRUS_MMIO_BLTWIDTH + 0):
1757 value = cirrus_vga_read_gr(s, 0x20);
1758 break;
1759 case (CIRRUS_MMIO_BLTWIDTH + 1):
1760 value = cirrus_vga_read_gr(s, 0x21);
1761 break;
1762 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1763 value = cirrus_vga_read_gr(s, 0x22);
1764 break;
1765 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1766 value = cirrus_vga_read_gr(s, 0x23);
1767 break;
1768 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1769 value = cirrus_vga_read_gr(s, 0x24);
1770 break;
1771 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1772 value = cirrus_vga_read_gr(s, 0x25);
1773 break;
1774 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1775 value = cirrus_vga_read_gr(s, 0x26);
1776 break;
1777 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1778 value = cirrus_vga_read_gr(s, 0x27);
1779 break;
1780 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1781 value = cirrus_vga_read_gr(s, 0x28);
1782 break;
1783 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1784 value = cirrus_vga_read_gr(s, 0x29);
1785 break;
1786 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1787 value = cirrus_vga_read_gr(s, 0x2a);
1788 break;
1789 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1790 value = cirrus_vga_read_gr(s, 0x2c);
1791 break;
1792 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1793 value = cirrus_vga_read_gr(s, 0x2d);
1794 break;
1795 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1796 value = cirrus_vga_read_gr(s, 0x2e);
1797 break;
1798 case CIRRUS_MMIO_BLTWRITEMASK:
1799 value = cirrus_vga_read_gr(s, 0x2f);
1800 break;
1801 case CIRRUS_MMIO_BLTMODE:
1802 value = cirrus_vga_read_gr(s, 0x30);
1803 break;
1804 case CIRRUS_MMIO_BLTROP:
1805 value = cirrus_vga_read_gr(s, 0x32);
1806 break;
1807 case CIRRUS_MMIO_BLTMODEEXT:
1808 value = cirrus_vga_read_gr(s, 0x33);
1809 break;
1810 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1811 value = cirrus_vga_read_gr(s, 0x34);
1812 break;
1813 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1814 value = cirrus_vga_read_gr(s, 0x35);
1815 break;
1816 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1817 value = cirrus_vga_read_gr(s, 0x38);
1818 break;
1819 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1820 value = cirrus_vga_read_gr(s, 0x39);
1821 break;
1822 case CIRRUS_MMIO_BLTSTATUS:
1823 value = cirrus_vga_read_gr(s, 0x31);
1824 break;
1825 default:
1826 #ifdef DEBUG_CIRRUS
1827 printf("cirrus: mmio read - address 0x%04x\n", address);
1828 #endif
1829 break;
1830 }
1831
1832 return (uint8_t) value;
1833 }
1834
1835 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1836 uint8_t value)
1837 {
1838 switch (address) {
1839 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1840 cirrus_vga_write_gr(s, 0x00, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1843 cirrus_vga_write_gr(s, 0x10, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1846 cirrus_vga_write_gr(s, 0x12, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1849 cirrus_vga_write_gr(s, 0x14, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1852 cirrus_vga_write_gr(s, 0x01, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1855 cirrus_vga_write_gr(s, 0x11, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1858 cirrus_vga_write_gr(s, 0x13, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1861 cirrus_vga_write_gr(s, 0x15, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTWIDTH + 0):
1864 cirrus_vga_write_gr(s, 0x20, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTWIDTH + 1):
1867 cirrus_vga_write_gr(s, 0x21, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1870 cirrus_vga_write_gr(s, 0x22, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1873 cirrus_vga_write_gr(s, 0x23, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1876 cirrus_vga_write_gr(s, 0x24, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1879 cirrus_vga_write_gr(s, 0x25, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1882 cirrus_vga_write_gr(s, 0x26, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1885 cirrus_vga_write_gr(s, 0x27, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1888 cirrus_vga_write_gr(s, 0x28, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1891 cirrus_vga_write_gr(s, 0x29, value);
1892 break;
1893 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1894 cirrus_vga_write_gr(s, 0x2a, value);
1895 break;
1896 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1897 /* ignored */
1898 break;
1899 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1900 cirrus_vga_write_gr(s, 0x2c, value);
1901 break;
1902 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1903 cirrus_vga_write_gr(s, 0x2d, value);
1904 break;
1905 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1906 cirrus_vga_write_gr(s, 0x2e, value);
1907 break;
1908 case CIRRUS_MMIO_BLTWRITEMASK:
1909 cirrus_vga_write_gr(s, 0x2f, value);
1910 break;
1911 case CIRRUS_MMIO_BLTMODE:
1912 cirrus_vga_write_gr(s, 0x30, value);
1913 break;
1914 case CIRRUS_MMIO_BLTROP:
1915 cirrus_vga_write_gr(s, 0x32, value);
1916 break;
1917 case CIRRUS_MMIO_BLTMODEEXT:
1918 cirrus_vga_write_gr(s, 0x33, value);
1919 break;
1920 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1921 cirrus_vga_write_gr(s, 0x34, value);
1922 break;
1923 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1924 cirrus_vga_write_gr(s, 0x35, value);
1925 break;
1926 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1927 cirrus_vga_write_gr(s, 0x38, value);
1928 break;
1929 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1930 cirrus_vga_write_gr(s, 0x39, value);
1931 break;
1932 case CIRRUS_MMIO_BLTSTATUS:
1933 cirrus_vga_write_gr(s, 0x31, value);
1934 break;
1935 default:
1936 #ifdef DEBUG_CIRRUS
1937 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1938 address, value);
1939 #endif
1940 break;
1941 }
1942 }
1943
1944 /***************************************
1945 *
1946 * write mode 4/5
1947 *
1948 ***************************************/
1949
1950 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1951 unsigned mode,
1952 unsigned offset,
1953 uint32_t mem_value)
1954 {
1955 int x;
1956 unsigned val = mem_value;
1957 uint8_t *dst;
1958
1959 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1960 for (x = 0; x < 8; x++) {
1961 if (val & 0x80) {
1962 *dst = s->cirrus_shadow_gr1;
1963 } else if (mode == 5) {
1964 *dst = s->cirrus_shadow_gr0;
1965 }
1966 val <<= 1;
1967 dst++;
1968 }
1969 memory_region_set_dirty(&s->vga.vram, offset, 8);
1970 }
1971
1972 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1973 unsigned mode,
1974 unsigned offset,
1975 uint32_t mem_value)
1976 {
1977 int x;
1978 unsigned val = mem_value;
1979 uint8_t *dst;
1980
1981 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1982 for (x = 0; x < 8; x++) {
1983 if (val & 0x80) {
1984 *dst = s->cirrus_shadow_gr1;
1985 *(dst + 1) = s->vga.gr[0x11];
1986 } else if (mode == 5) {
1987 *dst = s->cirrus_shadow_gr0;
1988 *(dst + 1) = s->vga.gr[0x10];
1989 }
1990 val <<= 1;
1991 dst += 2;
1992 }
1993 memory_region_set_dirty(&s->vga.vram, offset, 16);
1994 }
1995
1996 /***************************************
1997 *
1998 * memory access between 0xa0000-0xbffff
1999 *
2000 ***************************************/
2001
2002 static uint64_t cirrus_vga_mem_read(void *opaque,
2003 hwaddr addr,
2004 uint32_t size)
2005 {
2006 CirrusVGAState *s = opaque;
2007 unsigned bank_index;
2008 unsigned bank_offset;
2009 uint32_t val;
2010
2011 if ((s->vga.sr[0x07] & 0x01) == 0) {
2012 return vga_mem_readb(&s->vga, addr);
2013 }
2014
2015 if (addr < 0x10000) {
2016 /* XXX handle bitblt */
2017 /* video memory */
2018 bank_index = addr >> 15;
2019 bank_offset = addr & 0x7fff;
2020 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2021 bank_offset += s->cirrus_bank_base[bank_index];
2022 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2023 bank_offset <<= 4;
2024 } else if (s->vga.gr[0x0B] & 0x02) {
2025 bank_offset <<= 3;
2026 }
2027 bank_offset &= s->cirrus_addr_mask;
2028 val = *(s->vga.vram_ptr + bank_offset);
2029 } else
2030 val = 0xff;
2031 } else if (addr >= 0x18000 && addr < 0x18100) {
2032 /* memory-mapped I/O */
2033 val = 0xff;
2034 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2035 val = cirrus_mmio_blt_read(s, addr & 0xff);
2036 }
2037 } else {
2038 val = 0xff;
2039 #ifdef DEBUG_CIRRUS
2040 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2041 #endif
2042 }
2043 return val;
2044 }
2045
2046 static void cirrus_vga_mem_write(void *opaque,
2047 hwaddr addr,
2048 uint64_t mem_value,
2049 uint32_t size)
2050 {
2051 CirrusVGAState *s = opaque;
2052 unsigned bank_index;
2053 unsigned bank_offset;
2054 unsigned mode;
2055
2056 if ((s->vga.sr[0x07] & 0x01) == 0) {
2057 vga_mem_writeb(&s->vga, addr, mem_value);
2058 return;
2059 }
2060
2061 if (addr < 0x10000) {
2062 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2063 /* bitblt */
2064 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2065 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2066 cirrus_bitblt_cputovideo_next(s);
2067 }
2068 } else {
2069 /* video memory */
2070 bank_index = addr >> 15;
2071 bank_offset = addr & 0x7fff;
2072 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2073 bank_offset += s->cirrus_bank_base[bank_index];
2074 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2075 bank_offset <<= 4;
2076 } else if (s->vga.gr[0x0B] & 0x02) {
2077 bank_offset <<= 3;
2078 }
2079 bank_offset &= s->cirrus_addr_mask;
2080 mode = s->vga.gr[0x05] & 0x7;
2081 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2082 *(s->vga.vram_ptr + bank_offset) = mem_value;
2083 memory_region_set_dirty(&s->vga.vram, bank_offset,
2084 sizeof(mem_value));
2085 } else {
2086 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2087 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2088 bank_offset,
2089 mem_value);
2090 } else {
2091 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2092 bank_offset,
2093 mem_value);
2094 }
2095 }
2096 }
2097 }
2098 } else if (addr >= 0x18000 && addr < 0x18100) {
2099 /* memory-mapped I/O */
2100 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2101 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2102 }
2103 } else {
2104 #ifdef DEBUG_CIRRUS
2105 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr,
2106 mem_value);
2107 #endif
2108 }
2109 }
2110
2111 static const MemoryRegionOps cirrus_vga_mem_ops = {
2112 .read = cirrus_vga_mem_read,
2113 .write = cirrus_vga_mem_write,
2114 .endianness = DEVICE_LITTLE_ENDIAN,
2115 .impl = {
2116 .min_access_size = 1,
2117 .max_access_size = 1,
2118 },
2119 };
2120
2121 /***************************************
2122 *
2123 * hardware cursor
2124 *
2125 ***************************************/
2126
2127 static inline void invalidate_cursor1(CirrusVGAState *s)
2128 {
2129 if (s->last_hw_cursor_size) {
2130 vga_invalidate_scanlines(&s->vga,
2131 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2132 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2133 }
2134 }
2135
2136 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2137 {
2138 const uint8_t *src;
2139 uint32_t content;
2140 int y, y_min, y_max;
2141
2142 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2143 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2144 src += (s->vga.sr[0x13] & 0x3c) * 256;
2145 y_min = 64;
2146 y_max = -1;
2147 for(y = 0; y < 64; y++) {
2148 content = ((uint32_t *)src)[0] |
2149 ((uint32_t *)src)[1] |
2150 ((uint32_t *)src)[2] |
2151 ((uint32_t *)src)[3];
2152 if (content) {
2153 if (y < y_min)
2154 y_min = y;
2155 if (y > y_max)
2156 y_max = y;
2157 }
2158 src += 16;
2159 }
2160 } else {
2161 src += (s->vga.sr[0x13] & 0x3f) * 256;
2162 y_min = 32;
2163 y_max = -1;
2164 for(y = 0; y < 32; y++) {
2165 content = ((uint32_t *)src)[0] |
2166 ((uint32_t *)(src + 128))[0];
2167 if (content) {
2168 if (y < y_min)
2169 y_min = y;
2170 if (y > y_max)
2171 y_max = y;
2172 }
2173 src += 4;
2174 }
2175 }
2176 if (y_min > y_max) {
2177 s->last_hw_cursor_y_start = 0;
2178 s->last_hw_cursor_y_end = 0;
2179 } else {
2180 s->last_hw_cursor_y_start = y_min;
2181 s->last_hw_cursor_y_end = y_max + 1;
2182 }
2183 }
2184
2185 /* NOTE: we do not currently handle the cursor bitmap change, so we
2186 update the cursor only if it moves. */
2187 static void cirrus_cursor_invalidate(VGACommonState *s1)
2188 {
2189 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2190 int size;
2191
2192 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2193 size = 0;
2194 } else {
2195 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2196 size = 64;
2197 else
2198 size = 32;
2199 }
2200 /* invalidate last cursor and new cursor if any change */
2201 if (s->last_hw_cursor_size != size ||
2202 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2203 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
2204
2205 invalidate_cursor1(s);
2206
2207 s->last_hw_cursor_size = size;
2208 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2209 s->last_hw_cursor_y = s->vga.hw_cursor_y;
2210 /* compute the real cursor min and max y */
2211 cirrus_cursor_compute_yrange(s);
2212 invalidate_cursor1(s);
2213 }
2214 }
2215
2216 static void vga_draw_cursor_line(uint8_t *d1,
2217 const uint8_t *src1,
2218 int poffset, int w,
2219 unsigned int color0,
2220 unsigned int color1,
2221 unsigned int color_xor)
2222 {
2223 const uint8_t *plane0, *plane1;
2224 int x, b0, b1;
2225 uint8_t *d;
2226
2227 d = d1;
2228 plane0 = src1;
2229 plane1 = src1 + poffset;
2230 for (x = 0; x < w; x++) {
2231 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2232 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2233 switch (b0 | (b1 << 1)) {
2234 case 0:
2235 break;
2236 case 1:
2237 ((uint32_t *)d)[0] ^= color_xor;
2238 break;
2239 case 2:
2240 ((uint32_t *)d)[0] = color0;
2241 break;
2242 case 3:
2243 ((uint32_t *)d)[0] = color1;
2244 break;
2245 }
2246 d += 4;
2247 }
2248 }
2249
2250 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2251 {
2252 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2253 int w, h, x1, x2, poffset;
2254 unsigned int color0, color1;
2255 const uint8_t *palette, *src;
2256 uint32_t content;
2257
2258 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2259 return;
2260 /* fast test to see if the cursor intersects with the scan line */
2261 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2262 h = 64;
2263 } else {
2264 h = 32;
2265 }
2266 if (scr_y < s->vga.hw_cursor_y ||
2267 scr_y >= (s->vga.hw_cursor_y + h)) {
2268 return;
2269 }
2270
2271 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2272 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2273 src += (s->vga.sr[0x13] & 0x3c) * 256;
2274 src += (scr_y - s->vga.hw_cursor_y) * 16;
2275 poffset = 8;
2276 content = ((uint32_t *)src)[0] |
2277 ((uint32_t *)src)[1] |
2278 ((uint32_t *)src)[2] |
2279 ((uint32_t *)src)[3];
2280 } else {
2281 src += (s->vga.sr[0x13] & 0x3f) * 256;
2282 src += (scr_y - s->vga.hw_cursor_y) * 4;
2283
2284
2285 poffset = 128;
2286 content = ((uint32_t *)src)[0] |
2287 ((uint32_t *)(src + 128))[0];
2288 }
2289 /* if nothing to draw, no need to continue */
2290 if (!content)
2291 return;
2292 w = h;
2293
2294 x1 = s->vga.hw_cursor_x;
2295 if (x1 >= s->vga.last_scr_width)
2296 return;
2297 x2 = s->vga.hw_cursor_x + w;
2298 if (x2 > s->vga.last_scr_width)
2299 x2 = s->vga.last_scr_width;
2300 w = x2 - x1;
2301 palette = s->cirrus_hidden_palette;
2302 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2303 c6_to_8(palette[0x0 * 3 + 1]),
2304 c6_to_8(palette[0x0 * 3 + 2]));
2305 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2306 c6_to_8(palette[0xf * 3 + 1]),
2307 c6_to_8(palette[0xf * 3 + 2]));
2308 d1 += x1 * 4;
2309 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
2310 }
2311
2312 /***************************************
2313 *
2314 * LFB memory access
2315 *
2316 ***************************************/
2317
2318 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2319 unsigned size)
2320 {
2321 CirrusVGAState *s = opaque;
2322 uint32_t ret;
2323
2324 addr &= s->cirrus_addr_mask;
2325
2326 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2327 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2328 /* memory-mapped I/O */
2329 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2330 } else if (0) {
2331 /* XXX handle bitblt */
2332 ret = 0xff;
2333 } else {
2334 /* video memory */
2335 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2336 addr <<= 4;
2337 } else if (s->vga.gr[0x0B] & 0x02) {
2338 addr <<= 3;
2339 }
2340 addr &= s->cirrus_addr_mask;
2341 ret = *(s->vga.vram_ptr + addr);
2342 }
2343
2344 return ret;
2345 }
2346
2347 static void cirrus_linear_write(void *opaque, hwaddr addr,
2348 uint64_t val, unsigned size)
2349 {
2350 CirrusVGAState *s = opaque;
2351 unsigned mode;
2352
2353 addr &= s->cirrus_addr_mask;
2354
2355 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2356 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2357 /* memory-mapped I/O */
2358 cirrus_mmio_blt_write(s, addr & 0xff, val);
2359 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2360 /* bitblt */
2361 *s->cirrus_srcptr++ = (uint8_t) val;
2362 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2363 cirrus_bitblt_cputovideo_next(s);
2364 }
2365 } else {
2366 /* video memory */
2367 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2368 addr <<= 4;
2369 } else if (s->vga.gr[0x0B] & 0x02) {
2370 addr <<= 3;
2371 }
2372 addr &= s->cirrus_addr_mask;
2373
2374 mode = s->vga.gr[0x05] & 0x7;
2375 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2376 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2377 memory_region_set_dirty(&s->vga.vram, addr, 1);
2378 } else {
2379 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2380 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2381 } else {
2382 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2383 }
2384 }
2385 }
2386 }
2387
2388 /***************************************
2389 *
2390 * system to screen memory access
2391 *
2392 ***************************************/
2393
2394
2395 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2396 hwaddr addr,
2397 unsigned size)
2398 {
2399 CirrusVGAState *s = opaque;
2400 uint32_t ret;
2401
2402 /* XXX handle bitblt */
2403 (void)s;
2404 ret = 0xff;
2405 return ret;
2406 }
2407
2408 static void cirrus_linear_bitblt_write(void *opaque,
2409 hwaddr addr,
2410 uint64_t val,
2411 unsigned size)
2412 {
2413 CirrusVGAState *s = opaque;
2414
2415 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2416 /* bitblt */
2417 *s->cirrus_srcptr++ = (uint8_t) val;
2418 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2419 cirrus_bitblt_cputovideo_next(s);
2420 }
2421 }
2422 }
2423
2424 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2425 .read = cirrus_linear_bitblt_read,
2426 .write = cirrus_linear_bitblt_write,
2427 .endianness = DEVICE_LITTLE_ENDIAN,
2428 .impl = {
2429 .min_access_size = 1,
2430 .max_access_size = 1,
2431 },
2432 };
2433
2434 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2435 {
2436 MemoryRegion *mr = &s->cirrus_bank[bank];
2437 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2438 && !((s->vga.sr[0x07] & 0x01) == 0)
2439 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2440 && !(s->vga.gr[0x0B] & 0x02);
2441
2442 memory_region_set_enabled(mr, enabled);
2443 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2444 }
2445
2446 static void map_linear_vram(CirrusVGAState *s)
2447 {
2448 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2449 s->linear_vram = true;
2450 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2451 }
2452 map_linear_vram_bank(s, 0);
2453 map_linear_vram_bank(s, 1);
2454 }
2455
2456 static void unmap_linear_vram(CirrusVGAState *s)
2457 {
2458 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2459 s->linear_vram = false;
2460 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2461 }
2462 memory_region_set_enabled(&s->cirrus_bank[0], false);
2463 memory_region_set_enabled(&s->cirrus_bank[1], false);
2464 }
2465
2466 /* Compute the memory access functions */
2467 static void cirrus_update_memory_access(CirrusVGAState *s)
2468 {
2469 unsigned mode;
2470
2471 memory_region_transaction_begin();
2472 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2473 goto generic_io;
2474 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2475 goto generic_io;
2476 } else {
2477 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2478 goto generic_io;
2479 } else if (s->vga.gr[0x0B] & 0x02) {
2480 goto generic_io;
2481 }
2482
2483 mode = s->vga.gr[0x05] & 0x7;
2484 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2485 map_linear_vram(s);
2486 } else {
2487 generic_io:
2488 unmap_linear_vram(s);
2489 }
2490 }
2491 memory_region_transaction_commit();
2492 }
2493
2494
2495 /* I/O ports */
2496
2497 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2498 unsigned size)
2499 {
2500 CirrusVGAState *c = opaque;
2501 VGACommonState *s = &c->vga;
2502 int val, index;
2503
2504 addr += 0x3b0;
2505
2506 if (vga_ioport_invalid(s, addr)) {
2507 val = 0xff;
2508 } else {
2509 switch (addr) {
2510 case 0x3c0:
2511 if (s->ar_flip_flop == 0) {
2512 val = s->ar_index;
2513 } else {
2514 val = 0;
2515 }
2516 break;
2517 case 0x3c1:
2518 index = s->ar_index & 0x1f;
2519 if (index < 21)
2520 val = s->ar[index];
2521 else
2522 val = 0;
2523 break;
2524 case 0x3c2:
2525 val = s->st00;
2526 break;
2527 case 0x3c4:
2528 val = s->sr_index;
2529 break;
2530 case 0x3c5:
2531 val = cirrus_vga_read_sr(c);
2532 break;
2533 #ifdef DEBUG_VGA_REG
2534 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2535 #endif
2536 break;
2537 case 0x3c6:
2538 val = cirrus_read_hidden_dac(c);
2539 break;
2540 case 0x3c7:
2541 val = s->dac_state;
2542 break;
2543 case 0x3c8:
2544 val = s->dac_write_index;
2545 c->cirrus_hidden_dac_lockindex = 0;
2546 break;
2547 case 0x3c9:
2548 val = cirrus_vga_read_palette(c);
2549 break;
2550 case 0x3ca:
2551 val = s->fcr;
2552 break;
2553 case 0x3cc:
2554 val = s->msr;
2555 break;
2556 case 0x3ce:
2557 val = s->gr_index;
2558 break;
2559 case 0x3cf:
2560 val = cirrus_vga_read_gr(c, s->gr_index);
2561 #ifdef DEBUG_VGA_REG
2562 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2563 #endif
2564 break;
2565 case 0x3b4:
2566 case 0x3d4:
2567 val = s->cr_index;
2568 break;
2569 case 0x3b5:
2570 case 0x3d5:
2571 val = cirrus_vga_read_cr(c, s->cr_index);
2572 #ifdef DEBUG_VGA_REG
2573 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2574 #endif
2575 break;
2576 case 0x3ba:
2577 case 0x3da:
2578 /* just toggle to fool polling */
2579 val = s->st01 = s->retrace(s);
2580 s->ar_flip_flop = 0;
2581 break;
2582 default:
2583 val = 0x00;
2584 break;
2585 }
2586 }
2587 #if defined(DEBUG_VGA)
2588 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2589 #endif
2590 return val;
2591 }
2592
2593 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2594 unsigned size)
2595 {
2596 CirrusVGAState *c = opaque;
2597 VGACommonState *s = &c->vga;
2598 int index;
2599
2600 addr += 0x3b0;
2601
2602 /* check port range access depending on color/monochrome mode */
2603 if (vga_ioport_invalid(s, addr)) {
2604 return;
2605 }
2606 #ifdef DEBUG_VGA
2607 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2608 #endif
2609
2610 switch (addr) {
2611 case 0x3c0:
2612 if (s->ar_flip_flop == 0) {
2613 val &= 0x3f;
2614 s->ar_index = val;
2615 } else {
2616 index = s->ar_index & 0x1f;
2617 switch (index) {
2618 case 0x00 ... 0x0f:
2619 s->ar[index] = val & 0x3f;
2620 break;
2621 case 0x10:
2622 s->ar[index] = val & ~0x10;
2623 break;
2624 case 0x11:
2625 s->ar[index] = val;
2626 break;
2627 case 0x12:
2628 s->ar[index] = val & ~0xc0;
2629 break;
2630 case 0x13:
2631 s->ar[index] = val & ~0xf0;
2632 break;
2633 case 0x14:
2634 s->ar[index] = val & ~0xf0;
2635 break;
2636 default:
2637 break;
2638 }
2639 }
2640 s->ar_flip_flop ^= 1;
2641 break;
2642 case 0x3c2:
2643 s->msr = val & ~0x10;
2644 s->update_retrace_info(s);
2645 break;
2646 case 0x3c4:
2647 s->sr_index = val;
2648 break;
2649 case 0x3c5:
2650 #ifdef DEBUG_VGA_REG
2651 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val);
2652 #endif
2653 cirrus_vga_write_sr(c, val);
2654 break;
2655 case 0x3c6:
2656 cirrus_write_hidden_dac(c, val);
2657 break;
2658 case 0x3c7:
2659 s->dac_read_index = val;
2660 s->dac_sub_index = 0;
2661 s->dac_state = 3;
2662 break;
2663 case 0x3c8:
2664 s->dac_write_index = val;
2665 s->dac_sub_index = 0;
2666 s->dac_state = 0;
2667 break;
2668 case 0x3c9:
2669 cirrus_vga_write_palette(c, val);
2670 break;
2671 case 0x3ce:
2672 s->gr_index = val;
2673 break;
2674 case 0x3cf:
2675 #ifdef DEBUG_VGA_REG
2676 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val);
2677 #endif
2678 cirrus_vga_write_gr(c, s->gr_index, val);
2679 break;
2680 case 0x3b4:
2681 case 0x3d4:
2682 s->cr_index = val;
2683 break;
2684 case 0x3b5:
2685 case 0x3d5:
2686 #ifdef DEBUG_VGA_REG
2687 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val);
2688 #endif
2689 cirrus_vga_write_cr(c, val);
2690 break;
2691 case 0x3ba:
2692 case 0x3da:
2693 s->fcr = val & 0x10;
2694 break;
2695 }
2696 }
2697
2698 /***************************************
2699 *
2700 * memory-mapped I/O access
2701 *
2702 ***************************************/
2703
2704 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2705 unsigned size)
2706 {
2707 CirrusVGAState *s = opaque;
2708
2709 if (addr >= 0x100) {
2710 return cirrus_mmio_blt_read(s, addr - 0x100);
2711 } else {
2712 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2713 }
2714 }
2715
2716 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2717 uint64_t val, unsigned size)
2718 {
2719 CirrusVGAState *s = opaque;
2720
2721 if (addr >= 0x100) {
2722 cirrus_mmio_blt_write(s, addr - 0x100, val);
2723 } else {
2724 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2725 }
2726 }
2727
2728 static const MemoryRegionOps cirrus_mmio_io_ops = {
2729 .read = cirrus_mmio_read,
2730 .write = cirrus_mmio_write,
2731 .endianness = DEVICE_LITTLE_ENDIAN,
2732 .impl = {
2733 .min_access_size = 1,
2734 .max_access_size = 1,
2735 },
2736 };
2737
2738 /* load/save state */
2739
2740 static int cirrus_post_load(void *opaque, int version_id)
2741 {
2742 CirrusVGAState *s = opaque;
2743
2744 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2745 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2746
2747 cirrus_update_memory_access(s);
2748 /* force refresh */
2749 s->vga.graphic_mode = -1;
2750 cirrus_update_bank_ptr(s, 0);
2751 cirrus_update_bank_ptr(s, 1);
2752 return 0;
2753 }
2754
2755 static const VMStateDescription vmstate_cirrus_vga = {
2756 .name = "cirrus_vga",
2757 .version_id = 2,
2758 .minimum_version_id = 1,
2759 .post_load = cirrus_post_load,
2760 .fields = (VMStateField[]) {
2761 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2762 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2763 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2764 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2765 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2766 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2767 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2768 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2769 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2770 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2771 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2772 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2773 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2774 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2775 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2776 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2777 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2778 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2779 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2780 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2781 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2782 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2783 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2784 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2785 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2786 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2787 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
2788 /* XXX: we do not save the bitblt state - we assume we do not save
2789 the state when the blitter is active */
2790 VMSTATE_END_OF_LIST()
2791 }
2792 };
2793
2794 static const VMStateDescription vmstate_pci_cirrus_vga = {
2795 .name = "cirrus_vga",
2796 .version_id = 2,
2797 .minimum_version_id = 2,
2798 .fields = (VMStateField[]) {
2799 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2800 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2801 vmstate_cirrus_vga, CirrusVGAState),
2802 VMSTATE_END_OF_LIST()
2803 }
2804 };
2805
2806 /***************************************
2807 *
2808 * initialize
2809 *
2810 ***************************************/
2811
2812 static void cirrus_reset(void *opaque)
2813 {
2814 CirrusVGAState *s = opaque;
2815
2816 vga_common_reset(&s->vga);
2817 unmap_linear_vram(s);
2818 s->vga.sr[0x06] = 0x0f;
2819 if (s->device_id == CIRRUS_ID_CLGD5446) {
2820 /* 4MB 64 bit memory config, always PCI */
2821 s->vga.sr[0x1F] = 0x2d; // MemClock
2822 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2823 s->vga.sr[0x0f] = 0x98;
2824 s->vga.sr[0x17] = 0x20;
2825 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2826 } else {
2827 s->vga.sr[0x1F] = 0x22; // MemClock
2828 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2829 s->vga.sr[0x17] = s->bustype;
2830 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2831 }
2832 s->vga.cr[0x27] = s->device_id;
2833
2834 s->cirrus_hidden_dac_lockindex = 5;
2835 s->cirrus_hidden_dac_data = 0;
2836 }
2837
2838 static const MemoryRegionOps cirrus_linear_io_ops = {
2839 .read = cirrus_linear_read,
2840 .write = cirrus_linear_write,
2841 .endianness = DEVICE_LITTLE_ENDIAN,
2842 .impl = {
2843 .min_access_size = 1,
2844 .max_access_size = 1,
2845 },
2846 };
2847
2848 static const MemoryRegionOps cirrus_vga_io_ops = {
2849 .read = cirrus_vga_ioport_read,
2850 .write = cirrus_vga_ioport_write,
2851 .endianness = DEVICE_LITTLE_ENDIAN,
2852 .impl = {
2853 .min_access_size = 1,
2854 .max_access_size = 1,
2855 },
2856 };
2857
2858 static void cirrus_init_common(CirrusVGAState *s, Object *owner,
2859 int device_id, int is_pci,
2860 MemoryRegion *system_memory,
2861 MemoryRegion *system_io)
2862 {
2863 int i;
2864 static int inited;
2865
2866 if (!inited) {
2867 inited = 1;
2868 for(i = 0;i < 256; i++)
2869 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2870 rop_to_index[CIRRUS_ROP_0] = 0;
2871 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2872 rop_to_index[CIRRUS_ROP_NOP] = 2;
2873 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2874 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2875 rop_to_index[CIRRUS_ROP_SRC] = 5;
2876 rop_to_index[CIRRUS_ROP_1] = 6;
2877 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2878 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2879 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2880 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2881 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2882 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2883 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2884 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2885 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2886 s->device_id = device_id;
2887 if (is_pci)
2888 s->bustype = CIRRUS_BUSTYPE_PCI;
2889 else
2890 s->bustype = CIRRUS_BUSTYPE_ISA;
2891 }
2892
2893 /* Register ioport 0x3b0 - 0x3df */
2894 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
2895 "cirrus-io", 0x30);
2896 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
2897 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2898
2899 memory_region_init(&s->low_mem_container, owner,
2900 "cirrus-lowmem-container",
2901 0x20000);
2902
2903 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
2904 "cirrus-low-memory", 0x20000);
2905 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2906 for (i = 0; i < 2; ++i) {
2907 static const char *names[] = { "vga.bank0", "vga.bank1" };
2908 MemoryRegion *bank = &s->cirrus_bank[i];
2909 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2910 0, 0x8000);
2911 memory_region_set_enabled(bank, false);
2912 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2913 bank, 1);
2914 }
2915 memory_region_add_subregion_overlap(system_memory,
2916 0x000a0000,
2917 &s->low_mem_container,
2918 1);
2919 memory_region_set_coalescing(&s->low_mem);
2920
2921 /* I/O handler for LFB */
2922 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
2923 "cirrus-linear-io", s->vga.vram_size_mb
2924 * 1024 * 1024);
2925 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2926
2927 /* I/O handler for LFB */
2928 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
2929 &cirrus_linear_bitblt_io_ops,
2930 s,
2931 "cirrus-bitblt-mmio",
2932 0x400000);
2933 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2934
2935 /* I/O handler for memory-mapped I/O */
2936 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
2937 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2938 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2939
2940 s->real_vram_size =
2941 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2942
2943 /* XXX: s->vga.vram_size must be a power of two */
2944 s->cirrus_addr_mask = s->real_vram_size - 1;
2945 s->linear_mmio_mask = s->real_vram_size - 256;
2946
2947 s->vga.get_bpp = cirrus_get_bpp;
2948 s->vga.get_offsets = cirrus_get_offsets;
2949 s->vga.get_resolution = cirrus_get_resolution;
2950 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2951 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2952
2953 qemu_register_reset(cirrus_reset, s);
2954 }
2955
2956 /***************************************
2957 *
2958 * ISA bus support
2959 *
2960 ***************************************/
2961
2962 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
2963 {
2964 ISADevice *isadev = ISA_DEVICE(dev);
2965 ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
2966 VGACommonState *s = &d->cirrus_vga.vga;
2967
2968 /* follow real hardware, cirrus card emulated has 4 MB video memory.
2969 Also accept 8 MB/16 MB for backward compatibility. */
2970 if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
2971 s->vram_size_mb != 16) {
2972 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
2973 s->vram_size_mb);
2974 return;
2975 }
2976 vga_common_init(s, OBJECT(dev), true);
2977 cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
2978 isa_address_space(isadev),
2979 isa_address_space_io(isadev));
2980 s->con = graphic_console_init(dev, 0, s->hw_ops, s);
2981 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2982 /* XXX ISA-LFB support */
2983 /* FIXME not qdev yet */
2984 }
2985
2986 static Property isa_cirrus_vga_properties[] = {
2987 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
2988 cirrus_vga.vga.vram_size_mb, 8),
2989 DEFINE_PROP_END_OF_LIST(),
2990 };
2991
2992 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
2993 {
2994 DeviceClass *dc = DEVICE_CLASS(klass);
2995
2996 dc->vmsd = &vmstate_cirrus_vga;
2997 dc->realize = isa_cirrus_vga_realizefn;
2998 dc->props = isa_cirrus_vga_properties;
2999 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
3000 }
3001
3002 static const TypeInfo isa_cirrus_vga_info = {
3003 .name = TYPE_ISA_CIRRUS_VGA,
3004 .parent = TYPE_ISA_DEVICE,
3005 .instance_size = sizeof(ISACirrusVGAState),
3006 .class_init = isa_cirrus_vga_class_init,
3007 };
3008
3009 /***************************************
3010 *
3011 * PCI bus support
3012 *
3013 ***************************************/
3014
3015 static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
3016 {
3017 PCICirrusVGAState *d = PCI_CIRRUS_VGA(dev);
3018 CirrusVGAState *s = &d->cirrus_vga;
3019 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
3020 int16_t device_id = pc->device_id;
3021
3022 /* follow real hardware, cirrus card emulated has 4 MB video memory.
3023 Also accept 8 MB/16 MB for backward compatibility. */
3024 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
3025 s->vga.vram_size_mb != 16) {
3026 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
3027 s->vga.vram_size_mb);
3028 return;
3029 }
3030 /* setup VGA */
3031 vga_common_init(&s->vga, OBJECT(dev), true);
3032 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
3033 pci_address_space_io(dev));
3034 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
3035
3036 /* setup PCI */
3037
3038 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
3039
3040 /* XXX: add byte swapping apertures */
3041 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
3042 memory_region_add_subregion(&s->pci_bar, 0x1000000,
3043 &s->cirrus_linear_bitblt_io);
3044
3045 /* setup memory space */
3046 /* memory #0 LFB */
3047 /* memory #1 memory-mapped I/O */
3048 /* XXX: s->vga.vram_size must be a power of two */
3049 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
3050 if (device_id == CIRRUS_ID_CLGD5446) {
3051 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
3052 }
3053 }
3054
3055 static Property pci_vga_cirrus_properties[] = {
3056 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
3057 cirrus_vga.vga.vram_size_mb, 8),
3058 DEFINE_PROP_END_OF_LIST(),
3059 };
3060
3061 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
3062 {
3063 DeviceClass *dc = DEVICE_CLASS(klass);
3064 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
3065
3066 k->realize = pci_cirrus_vga_realize;
3067 k->romfile = VGABIOS_CIRRUS_FILENAME;
3068 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3069 k->device_id = CIRRUS_ID_CLGD5446;
3070 k->class_id = PCI_CLASS_DISPLAY_VGA;
3071 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
3072 dc->desc = "Cirrus CLGD 54xx VGA";
3073 dc->vmsd = &vmstate_pci_cirrus_vga;
3074 dc->props = pci_vga_cirrus_properties;
3075 dc->hotpluggable = false;
3076 }
3077
3078 static const TypeInfo cirrus_vga_info = {
3079 .name = TYPE_PCI_CIRRUS_VGA,
3080 .parent = TYPE_PCI_DEVICE,
3081 .instance_size = sizeof(PCICirrusVGAState),
3082 .class_init = cirrus_vga_class_init,
3083 };
3084
3085 static void cirrus_vga_register_types(void)
3086 {
3087 type_register_static(&isa_cirrus_vga_info);
3088 type_register_static(&cirrus_vga_info);
3089 }
3090
3091 type_init(cirrus_vga_register_types)
AR7 emulation for QEMU