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qapi: qapi-visit.py, fix list handling for union types
[qemu/ar7.git] / hw / display / cirrus_vga.c
blob64bfe2be4a2344ab29ae551a51ca9b3b96ff62b6
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 "hw/hw.h"
30 #include "hw/pci/pci.h"
31 #include "ui/console.h"
32 #include "vga_int.h"
33 #include "hw/loader.h"
34
35 /*
36 * TODO:
37 * - destination write mask support not complete (bits 5..7)
38 * - optimize linear mappings
39 * - optimize bitblt functions
40 */
41
42 //#define DEBUG_CIRRUS
43 //#define DEBUG_BITBLT
44
45 /***************************************
46 *
47 * definitions
48 *
49 ***************************************/
50
51 // ID
52 #define CIRRUS_ID_CLGD5422 (0x23<<2)
53 #define CIRRUS_ID_CLGD5426 (0x24<<2)
54 #define CIRRUS_ID_CLGD5424 (0x25<<2)
55 #define CIRRUS_ID_CLGD5428 (0x26<<2)
56 #define CIRRUS_ID_CLGD5430 (0x28<<2)
57 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
58 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
59 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
60
61 // sequencer 0x07
62 #define CIRRUS_SR7_BPP_VGA 0x00
63 #define CIRRUS_SR7_BPP_SVGA 0x01
64 #define CIRRUS_SR7_BPP_MASK 0x0e
65 #define CIRRUS_SR7_BPP_8 0x00
66 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
67 #define CIRRUS_SR7_BPP_24 0x04
68 #define CIRRUS_SR7_BPP_16 0x06
69 #define CIRRUS_SR7_BPP_32 0x08
70 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
71
72 // sequencer 0x0f
73 #define CIRRUS_MEMSIZE_512k 0x08
74 #define CIRRUS_MEMSIZE_1M 0x10
75 #define CIRRUS_MEMSIZE_2M 0x18
76 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
77
78 // sequencer 0x12
79 #define CIRRUS_CURSOR_SHOW 0x01
80 #define CIRRUS_CURSOR_HIDDENPEL 0x02
81 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
82
83 // sequencer 0x17
84 #define CIRRUS_BUSTYPE_VLBFAST 0x10
85 #define CIRRUS_BUSTYPE_PCI 0x20
86 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
87 #define CIRRUS_BUSTYPE_ISA 0x38
88 #define CIRRUS_MMIO_ENABLE 0x04
89 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
90 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
91
92 // control 0x0b
93 #define CIRRUS_BANKING_DUAL 0x01
94 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
95
96 // control 0x30
97 #define CIRRUS_BLTMODE_BACKWARDS 0x01
98 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
99 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
100 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
101 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
102 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
103 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
104 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
105 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
106 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
107 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
108
109 // control 0x31
110 #define CIRRUS_BLT_BUSY 0x01
111 #define CIRRUS_BLT_START 0x02
112 #define CIRRUS_BLT_RESET 0x04
113 #define CIRRUS_BLT_FIFOUSED 0x10
114 #define CIRRUS_BLT_AUTOSTART 0x80
115
116 // control 0x32
117 #define CIRRUS_ROP_0 0x00
118 #define CIRRUS_ROP_SRC_AND_DST 0x05
119 #define CIRRUS_ROP_NOP 0x06
120 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
121 #define CIRRUS_ROP_NOTDST 0x0b
122 #define CIRRUS_ROP_SRC 0x0d
123 #define CIRRUS_ROP_1 0x0e
124 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
125 #define CIRRUS_ROP_SRC_XOR_DST 0x59
126 #define CIRRUS_ROP_SRC_OR_DST 0x6d
127 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
128 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
129 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
130 #define CIRRUS_ROP_NOTSRC 0xd0
131 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
132 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
133
134 #define CIRRUS_ROP_NOP_INDEX 2
135 #define CIRRUS_ROP_SRC_INDEX 5
136
137 // control 0x33
138 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
139 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
140 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
141
142 // memory-mapped IO
143 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
144 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
145 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
146 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
147 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
148 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
149 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
150 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
151 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
152 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
153 #define CIRRUS_MMIO_BLTROP 0x1a // byte
154 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
155 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
156 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
157 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
158 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
159 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
160 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
161 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
162 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
165 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
166 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
167 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
168 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
169 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
170 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
171 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
172
173 #define CIRRUS_PNPMMIO_SIZE 0x1000
174
175 #define BLTUNSAFE(s) \
176 ( \
177 ( /* check dst is within bounds */ \
178 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
179 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
180 (s)->vga.vram_size \
181 ) || \
182 ( /* check src is within bounds */ \
183 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
184 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
185 (s)->vga.vram_size \
186 ) \
187 )
188
189 struct CirrusVGAState;
190 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
191 uint8_t * dst, const uint8_t * src,
192 int dstpitch, int srcpitch,
193 int bltwidth, int bltheight);
194 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
195 uint8_t *dst, int dst_pitch, int width, int height);
196
197 typedef struct CirrusVGAState {
198 VGACommonState vga;
199
200 MemoryRegion cirrus_vga_io;
201 MemoryRegion cirrus_linear_io;
202 MemoryRegion cirrus_linear_bitblt_io;
203 MemoryRegion cirrus_mmio_io;
204 MemoryRegion pci_bar;
205 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
206 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
207 MemoryRegion low_mem; /* always mapped, overridden by: */
208 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
209 uint32_t cirrus_addr_mask;
210 uint32_t linear_mmio_mask;
211 uint8_t cirrus_shadow_gr0;
212 uint8_t cirrus_shadow_gr1;
213 uint8_t cirrus_hidden_dac_lockindex;
214 uint8_t cirrus_hidden_dac_data;
215 uint32_t cirrus_bank_base[2];
216 uint32_t cirrus_bank_limit[2];
217 uint8_t cirrus_hidden_palette[48];
218 uint32_t hw_cursor_x;
219 uint32_t hw_cursor_y;
220 int cirrus_blt_pixelwidth;
221 int cirrus_blt_width;
222 int cirrus_blt_height;
223 int cirrus_blt_dstpitch;
224 int cirrus_blt_srcpitch;
225 uint32_t cirrus_blt_fgcol;
226 uint32_t cirrus_blt_bgcol;
227 uint32_t cirrus_blt_dstaddr;
228 uint32_t cirrus_blt_srcaddr;
229 uint8_t cirrus_blt_mode;
230 uint8_t cirrus_blt_modeext;
231 cirrus_bitblt_rop_t cirrus_rop;
232 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
233 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
234 uint8_t *cirrus_srcptr;
235 uint8_t *cirrus_srcptr_end;
236 uint32_t cirrus_srccounter;
237 /* hwcursor display state */
238 int last_hw_cursor_size;
239 int last_hw_cursor_x;
240 int last_hw_cursor_y;
241 int last_hw_cursor_y_start;
242 int last_hw_cursor_y_end;
243 int real_vram_size; /* XXX: suppress that */
244 int device_id;
245 int bustype;
246 } CirrusVGAState;
247
248 typedef struct PCICirrusVGAState {
249 PCIDevice dev;
250 CirrusVGAState cirrus_vga;
251 } PCICirrusVGAState;
252
253 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
254 #define ISA_CIRRUS_VGA(obj) \
255 OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
256
257 typedef struct ISACirrusVGAState {
258 ISADevice parent_obj;
259
260 CirrusVGAState cirrus_vga;
261 } ISACirrusVGAState;
262
263 static uint8_t rop_to_index[256];
264
265 /***************************************
266 *
267 * prototypes.
268 *
269 ***************************************/
270
271
272 static void cirrus_bitblt_reset(CirrusVGAState *s);
273 static void cirrus_update_memory_access(CirrusVGAState *s);
274
275 /***************************************
276 *
277 * raster operations
278 *
279 ***************************************/
280
281 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
282 uint8_t *dst,const uint8_t *src,
283 int dstpitch,int srcpitch,
284 int bltwidth,int bltheight)
285 {
286 }
287
288 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
289 uint8_t *dst,
290 int dstpitch, int bltwidth,int bltheight)
291 {
292 }
293
294 #define ROP_NAME 0
295 #define ROP_FN(d, s) 0
296 #include "cirrus_vga_rop.h"
297
298 #define ROP_NAME src_and_dst
299 #define ROP_FN(d, s) (s) & (d)
300 #include "cirrus_vga_rop.h"
301
302 #define ROP_NAME src_and_notdst
303 #define ROP_FN(d, s) (s) & (~(d))
304 #include "cirrus_vga_rop.h"
305
306 #define ROP_NAME notdst
307 #define ROP_FN(d, s) ~(d)
308 #include "cirrus_vga_rop.h"
309
310 #define ROP_NAME src
311 #define ROP_FN(d, s) s
312 #include "cirrus_vga_rop.h"
313
314 #define ROP_NAME 1
315 #define ROP_FN(d, s) ~0
316 #include "cirrus_vga_rop.h"
317
318 #define ROP_NAME notsrc_and_dst
319 #define ROP_FN(d, s) (~(s)) & (d)
320 #include "cirrus_vga_rop.h"
321
322 #define ROP_NAME src_xor_dst
323 #define ROP_FN(d, s) (s) ^ (d)
324 #include "cirrus_vga_rop.h"
325
326 #define ROP_NAME src_or_dst
327 #define ROP_FN(d, s) (s) | (d)
328 #include "cirrus_vga_rop.h"
329
330 #define ROP_NAME notsrc_or_notdst
331 #define ROP_FN(d, s) (~(s)) | (~(d))
332 #include "cirrus_vga_rop.h"
333
334 #define ROP_NAME src_notxor_dst
335 #define ROP_FN(d, s) ~((s) ^ (d))
336 #include "cirrus_vga_rop.h"
337
338 #define ROP_NAME src_or_notdst
339 #define ROP_FN(d, s) (s) | (~(d))
340 #include "cirrus_vga_rop.h"
341
342 #define ROP_NAME notsrc
343 #define ROP_FN(d, s) (~(s))
344 #include "cirrus_vga_rop.h"
345
346 #define ROP_NAME notsrc_or_dst
347 #define ROP_FN(d, s) (~(s)) | (d)
348 #include "cirrus_vga_rop.h"
349
350 #define ROP_NAME notsrc_and_notdst
351 #define ROP_FN(d, s) (~(s)) & (~(d))
352 #include "cirrus_vga_rop.h"
353
354 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
355 cirrus_bitblt_rop_fwd_0,
356 cirrus_bitblt_rop_fwd_src_and_dst,
357 cirrus_bitblt_rop_nop,
358 cirrus_bitblt_rop_fwd_src_and_notdst,
359 cirrus_bitblt_rop_fwd_notdst,
360 cirrus_bitblt_rop_fwd_src,
361 cirrus_bitblt_rop_fwd_1,
362 cirrus_bitblt_rop_fwd_notsrc_and_dst,
363 cirrus_bitblt_rop_fwd_src_xor_dst,
364 cirrus_bitblt_rop_fwd_src_or_dst,
365 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
366 cirrus_bitblt_rop_fwd_src_notxor_dst,
367 cirrus_bitblt_rop_fwd_src_or_notdst,
368 cirrus_bitblt_rop_fwd_notsrc,
369 cirrus_bitblt_rop_fwd_notsrc_or_dst,
370 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
371 };
372
373 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
374 cirrus_bitblt_rop_bkwd_0,
375 cirrus_bitblt_rop_bkwd_src_and_dst,
376 cirrus_bitblt_rop_nop,
377 cirrus_bitblt_rop_bkwd_src_and_notdst,
378 cirrus_bitblt_rop_bkwd_notdst,
379 cirrus_bitblt_rop_bkwd_src,
380 cirrus_bitblt_rop_bkwd_1,
381 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
382 cirrus_bitblt_rop_bkwd_src_xor_dst,
383 cirrus_bitblt_rop_bkwd_src_or_dst,
384 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
385 cirrus_bitblt_rop_bkwd_src_notxor_dst,
386 cirrus_bitblt_rop_bkwd_src_or_notdst,
387 cirrus_bitblt_rop_bkwd_notsrc,
388 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
389 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
390 };
391
392 #define TRANSP_ROP(name) {\
393 name ## _8,\
394 name ## _16,\
395 }
396 #define TRANSP_NOP(func) {\
397 func,\
398 func,\
399 }
400
401 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
402 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
403 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
404 TRANSP_NOP(cirrus_bitblt_rop_nop),
405 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
406 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
407 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
408 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
409 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
410 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
411 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
412 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
413 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
414 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
415 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
416 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
417 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
418 };
419
420 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
421 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
422 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
423 TRANSP_NOP(cirrus_bitblt_rop_nop),
424 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
425 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
426 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
427 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
428 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
429 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
430 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
431 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
432 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
433 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
434 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
435 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
436 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
437 };
438
439 #define ROP2(name) {\
440 name ## _8,\
441 name ## _16,\
442 name ## _24,\
443 name ## _32,\
444 }
445
446 #define ROP_NOP2(func) {\
447 func,\
448 func,\
449 func,\
450 func,\
451 }
452
453 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
454 ROP2(cirrus_patternfill_0),
455 ROP2(cirrus_patternfill_src_and_dst),
456 ROP_NOP2(cirrus_bitblt_rop_nop),
457 ROP2(cirrus_patternfill_src_and_notdst),
458 ROP2(cirrus_patternfill_notdst),
459 ROP2(cirrus_patternfill_src),
460 ROP2(cirrus_patternfill_1),
461 ROP2(cirrus_patternfill_notsrc_and_dst),
462 ROP2(cirrus_patternfill_src_xor_dst),
463 ROP2(cirrus_patternfill_src_or_dst),
464 ROP2(cirrus_patternfill_notsrc_or_notdst),
465 ROP2(cirrus_patternfill_src_notxor_dst),
466 ROP2(cirrus_patternfill_src_or_notdst),
467 ROP2(cirrus_patternfill_notsrc),
468 ROP2(cirrus_patternfill_notsrc_or_dst),
469 ROP2(cirrus_patternfill_notsrc_and_notdst),
470 };
471
472 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
473 ROP2(cirrus_colorexpand_transp_0),
474 ROP2(cirrus_colorexpand_transp_src_and_dst),
475 ROP_NOP2(cirrus_bitblt_rop_nop),
476 ROP2(cirrus_colorexpand_transp_src_and_notdst),
477 ROP2(cirrus_colorexpand_transp_notdst),
478 ROP2(cirrus_colorexpand_transp_src),
479 ROP2(cirrus_colorexpand_transp_1),
480 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
481 ROP2(cirrus_colorexpand_transp_src_xor_dst),
482 ROP2(cirrus_colorexpand_transp_src_or_dst),
483 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
484 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
485 ROP2(cirrus_colorexpand_transp_src_or_notdst),
486 ROP2(cirrus_colorexpand_transp_notsrc),
487 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
488 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
489 };
490
491 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
492 ROP2(cirrus_colorexpand_0),
493 ROP2(cirrus_colorexpand_src_and_dst),
494 ROP_NOP2(cirrus_bitblt_rop_nop),
495 ROP2(cirrus_colorexpand_src_and_notdst),
496 ROP2(cirrus_colorexpand_notdst),
497 ROP2(cirrus_colorexpand_src),
498 ROP2(cirrus_colorexpand_1),
499 ROP2(cirrus_colorexpand_notsrc_and_dst),
500 ROP2(cirrus_colorexpand_src_xor_dst),
501 ROP2(cirrus_colorexpand_src_or_dst),
502 ROP2(cirrus_colorexpand_notsrc_or_notdst),
503 ROP2(cirrus_colorexpand_src_notxor_dst),
504 ROP2(cirrus_colorexpand_src_or_notdst),
505 ROP2(cirrus_colorexpand_notsrc),
506 ROP2(cirrus_colorexpand_notsrc_or_dst),
507 ROP2(cirrus_colorexpand_notsrc_and_notdst),
508 };
509
510 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
511 ROP2(cirrus_colorexpand_pattern_transp_0),
512 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
513 ROP_NOP2(cirrus_bitblt_rop_nop),
514 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
515 ROP2(cirrus_colorexpand_pattern_transp_notdst),
516 ROP2(cirrus_colorexpand_pattern_transp_src),
517 ROP2(cirrus_colorexpand_pattern_transp_1),
518 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
519 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
520 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
521 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
522 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
523 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
524 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
525 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
526 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
527 };
528
529 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
530 ROP2(cirrus_colorexpand_pattern_0),
531 ROP2(cirrus_colorexpand_pattern_src_and_dst),
532 ROP_NOP2(cirrus_bitblt_rop_nop),
533 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
534 ROP2(cirrus_colorexpand_pattern_notdst),
535 ROP2(cirrus_colorexpand_pattern_src),
536 ROP2(cirrus_colorexpand_pattern_1),
537 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
538 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
539 ROP2(cirrus_colorexpand_pattern_src_or_dst),
540 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
541 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
542 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
543 ROP2(cirrus_colorexpand_pattern_notsrc),
544 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
545 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
546 };
547
548 static const cirrus_fill_t cirrus_fill[16][4] = {
549 ROP2(cirrus_fill_0),
550 ROP2(cirrus_fill_src_and_dst),
551 ROP_NOP2(cirrus_bitblt_fill_nop),
552 ROP2(cirrus_fill_src_and_notdst),
553 ROP2(cirrus_fill_notdst),
554 ROP2(cirrus_fill_src),
555 ROP2(cirrus_fill_1),
556 ROP2(cirrus_fill_notsrc_and_dst),
557 ROP2(cirrus_fill_src_xor_dst),
558 ROP2(cirrus_fill_src_or_dst),
559 ROP2(cirrus_fill_notsrc_or_notdst),
560 ROP2(cirrus_fill_src_notxor_dst),
561 ROP2(cirrus_fill_src_or_notdst),
562 ROP2(cirrus_fill_notsrc),
563 ROP2(cirrus_fill_notsrc_or_dst),
564 ROP2(cirrus_fill_notsrc_and_notdst),
565 };
566
567 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
568 {
569 unsigned int color;
570 switch (s->cirrus_blt_pixelwidth) {
571 case 1:
572 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
573 break;
574 case 2:
575 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
576 s->cirrus_blt_fgcol = le16_to_cpu(color);
577 break;
578 case 3:
579 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
580 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
581 break;
582 default:
583 case 4:
584 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
585 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
586 s->cirrus_blt_fgcol = le32_to_cpu(color);
587 break;
588 }
589 }
590
591 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
592 {
593 unsigned int color;
594 switch (s->cirrus_blt_pixelwidth) {
595 case 1:
596 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
597 break;
598 case 2:
599 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
600 s->cirrus_blt_bgcol = le16_to_cpu(color);
601 break;
602 case 3:
603 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
604 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
605 break;
606 default:
607 case 4:
608 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
609 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
610 s->cirrus_blt_bgcol = le32_to_cpu(color);
611 break;
612 }
613 }
614
615 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
616 int off_pitch, int bytesperline,
617 int lines)
618 {
619 int y;
620 int off_cur;
621 int off_cur_end;
622
623 for (y = 0; y < lines; y++) {
624 off_cur = off_begin;
625 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
626 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
627 off_begin += off_pitch;
628 }
629 }
630
631 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
632 const uint8_t * src)
633 {
634 uint8_t *dst;
635
636 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
637
638 if (BLTUNSAFE(s))
639 return 0;
640
641 (*s->cirrus_rop) (s, dst, src,
642 s->cirrus_blt_dstpitch, 0,
643 s->cirrus_blt_width, s->cirrus_blt_height);
644 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
645 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
646 s->cirrus_blt_height);
647 return 1;
648 }
649
650 /* fill */
651
652 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
653 {
654 cirrus_fill_t rop_func;
655
656 if (BLTUNSAFE(s))
657 return 0;
658 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
659 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
660 s->cirrus_blt_dstpitch,
661 s->cirrus_blt_width, s->cirrus_blt_height);
662 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
663 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
664 s->cirrus_blt_height);
665 cirrus_bitblt_reset(s);
666 return 1;
667 }
668
669 /***************************************
670 *
671 * bitblt (video-to-video)
672 *
673 ***************************************/
674
675 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
676 {
677 return cirrus_bitblt_common_patterncopy(s,
678 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
679 s->cirrus_addr_mask));
680 }
681
682 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
683 {
684 int sx = 0, sy = 0;
685 int dx = 0, dy = 0;
686 int depth = 0;
687 int notify = 0;
688
689 /* make sure to only copy if it's a plain copy ROP */
690 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
691 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
692
693 int width, height;
694
695 depth = s->vga.get_bpp(&s->vga) / 8;
696 s->vga.get_resolution(&s->vga, &width, &height);
697
698 /* extra x, y */
699 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
700 sy = (src / ABS(s->cirrus_blt_srcpitch));
701 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
702 dy = (dst / ABS(s->cirrus_blt_dstpitch));
703
704 /* normalize width */
705 w /= depth;
706
707 /* if we're doing a backward copy, we have to adjust
708 our x/y to be the upper left corner (instead of the lower
709 right corner) */
710 if (s->cirrus_blt_dstpitch < 0) {
711 sx -= (s->cirrus_blt_width / depth) - 1;
712 dx -= (s->cirrus_blt_width / depth) - 1;
713 sy -= s->cirrus_blt_height - 1;
714 dy -= s->cirrus_blt_height - 1;
715 }
716
717 /* are we in the visible portion of memory? */
718 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
719 (sx + w) <= width && (sy + h) <= height &&
720 (dx + w) <= width && (dy + h) <= height) {
721 notify = 1;
722 }
723 }
724
725 /* we have to flush all pending changes so that the copy
726 is generated at the appropriate moment in time */
727 if (notify)
728 graphic_hw_update(s->vga.con);
729
730 (*s->cirrus_rop) (s, s->vga.vram_ptr +
731 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
732 s->vga.vram_ptr +
733 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
734 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
735 s->cirrus_blt_width, s->cirrus_blt_height);
736
737 if (notify) {
738 qemu_console_copy(s->vga.con,
739 sx, sy, dx, dy,
740 s->cirrus_blt_width / depth,
741 s->cirrus_blt_height);
742 }
743
744 /* we don't have to notify the display that this portion has
745 changed since qemu_console_copy implies this */
746
747 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
748 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
749 s->cirrus_blt_height);
750 }
751
752 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
753 {
754 if (BLTUNSAFE(s))
755 return 0;
756
757 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
758 s->cirrus_blt_srcaddr - s->vga.start_addr,
759 s->cirrus_blt_width, s->cirrus_blt_height);
760
761 return 1;
762 }
763
764 /***************************************
765 *
766 * bitblt (cpu-to-video)
767 *
768 ***************************************/
769
770 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
771 {
772 int copy_count;
773 uint8_t *end_ptr;
774
775 if (s->cirrus_srccounter > 0) {
776 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
777 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
778 the_end:
779 s->cirrus_srccounter = 0;
780 cirrus_bitblt_reset(s);
781 } else {
782 /* at least one scan line */
783 do {
784 (*s->cirrus_rop)(s, s->vga.vram_ptr +
785 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
786 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
787 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
788 s->cirrus_blt_width, 1);
789 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
790 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
791 if (s->cirrus_srccounter <= 0)
792 goto the_end;
793 /* more bytes than needed can be transferred because of
794 word alignment, so we keep them for the next line */
795 /* XXX: keep alignment to speed up transfer */
796 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
797 copy_count = s->cirrus_srcptr_end - end_ptr;
798 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
799 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
800 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
801 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
802 }
803 }
804 }
805
806 /***************************************
807 *
808 * bitblt wrapper
809 *
810 ***************************************/
811
812 static void cirrus_bitblt_reset(CirrusVGAState * s)
813 {
814 int need_update;
815
816 s->vga.gr[0x31] &=
817 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
818 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
819 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
820 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
821 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
822 s->cirrus_srccounter = 0;
823 if (!need_update)
824 return;
825 cirrus_update_memory_access(s);
826 }
827
828 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
829 {
830 int w;
831
832 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
833 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
834 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
835
836 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
837 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
838 s->cirrus_blt_srcpitch = 8;
839 } else {
840 /* XXX: check for 24 bpp */
841 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
842 }
843 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
844 } else {
845 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
846 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
847 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
848 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
849 else
850 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
851 } else {
852 /* always align input size to 32 bits */
853 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
854 }
855 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
856 }
857 s->cirrus_srcptr = s->cirrus_bltbuf;
858 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
859 cirrus_update_memory_access(s);
860 return 1;
861 }
862
863 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
864 {
865 /* XXX */
866 #ifdef DEBUG_BITBLT
867 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
868 #endif
869 return 0;
870 }
871
872 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
873 {
874 int ret;
875
876 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
877 ret = cirrus_bitblt_videotovideo_patterncopy(s);
878 } else {
879 ret = cirrus_bitblt_videotovideo_copy(s);
880 }
881 if (ret)
882 cirrus_bitblt_reset(s);
883 return ret;
884 }
885
886 static void cirrus_bitblt_start(CirrusVGAState * s)
887 {
888 uint8_t blt_rop;
889
890 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
891
892 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
893 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
894 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
895 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
896 s->cirrus_blt_dstaddr =
897 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
898 s->cirrus_blt_srcaddr =
899 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
900 s->cirrus_blt_mode = s->vga.gr[0x30];
901 s->cirrus_blt_modeext = s->vga.gr[0x33];
902 blt_rop = s->vga.gr[0x32];
903
904 #ifdef DEBUG_BITBLT
905 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",
906 blt_rop,
907 s->cirrus_blt_mode,
908 s->cirrus_blt_modeext,
909 s->cirrus_blt_width,
910 s->cirrus_blt_height,
911 s->cirrus_blt_dstpitch,
912 s->cirrus_blt_srcpitch,
913 s->cirrus_blt_dstaddr,
914 s->cirrus_blt_srcaddr,
915 s->vga.gr[0x2f]);
916 #endif
917
918 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
919 case CIRRUS_BLTMODE_PIXELWIDTH8:
920 s->cirrus_blt_pixelwidth = 1;
921 break;
922 case CIRRUS_BLTMODE_PIXELWIDTH16:
923 s->cirrus_blt_pixelwidth = 2;
924 break;
925 case CIRRUS_BLTMODE_PIXELWIDTH24:
926 s->cirrus_blt_pixelwidth = 3;
927 break;
928 case CIRRUS_BLTMODE_PIXELWIDTH32:
929 s->cirrus_blt_pixelwidth = 4;
930 break;
931 default:
932 #ifdef DEBUG_BITBLT
933 printf("cirrus: bitblt - pixel width is unknown\n");
934 #endif
935 goto bitblt_ignore;
936 }
937 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
938
939 if ((s->
940 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
941 CIRRUS_BLTMODE_MEMSYSDEST))
942 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
943 #ifdef DEBUG_BITBLT
944 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
945 #endif
946 goto bitblt_ignore;
947 }
948
949 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
950 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
951 CIRRUS_BLTMODE_TRANSPARENTCOMP |
952 CIRRUS_BLTMODE_PATTERNCOPY |
953 CIRRUS_BLTMODE_COLOREXPAND)) ==
954 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
955 cirrus_bitblt_fgcol(s);
956 cirrus_bitblt_solidfill(s, blt_rop);
957 } else {
958 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
959 CIRRUS_BLTMODE_PATTERNCOPY)) ==
960 CIRRUS_BLTMODE_COLOREXPAND) {
961
962 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
963 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
964 cirrus_bitblt_bgcol(s);
965 else
966 cirrus_bitblt_fgcol(s);
967 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
968 } else {
969 cirrus_bitblt_fgcol(s);
970 cirrus_bitblt_bgcol(s);
971 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
972 }
973 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
974 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
975 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
976 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
977 cirrus_bitblt_bgcol(s);
978 else
979 cirrus_bitblt_fgcol(s);
980 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
981 } else {
982 cirrus_bitblt_fgcol(s);
983 cirrus_bitblt_bgcol(s);
984 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
985 }
986 } else {
987 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
988 }
989 } else {
990 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
991 if (s->cirrus_blt_pixelwidth > 2) {
992 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
993 goto bitblt_ignore;
994 }
995 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
996 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
997 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
998 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
999 } else {
1000 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1001 }
1002 } else {
1003 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1004 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1005 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1006 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1007 } else {
1008 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1009 }
1010 }
1011 }
1012 // setup bitblt engine.
1013 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1014 if (!cirrus_bitblt_cputovideo(s))
1015 goto bitblt_ignore;
1016 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1017 if (!cirrus_bitblt_videotocpu(s))
1018 goto bitblt_ignore;
1019 } else {
1020 if (!cirrus_bitblt_videotovideo(s))
1021 goto bitblt_ignore;
1022 }
1023 }
1024 return;
1025 bitblt_ignore:;
1026 cirrus_bitblt_reset(s);
1027 }
1028
1029 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1030 {
1031 unsigned old_value;
1032
1033 old_value = s->vga.gr[0x31];
1034 s->vga.gr[0x31] = reg_value;
1035
1036 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1037 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1038 cirrus_bitblt_reset(s);
1039 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1040 ((reg_value & CIRRUS_BLT_START) != 0)) {
1041 cirrus_bitblt_start(s);
1042 }
1043 }
1044
1045
1046 /***************************************
1047 *
1048 * basic parameters
1049 *
1050 ***************************************/
1051
1052 static void cirrus_get_offsets(VGACommonState *s1,
1053 uint32_t *pline_offset,
1054 uint32_t *pstart_addr,
1055 uint32_t *pline_compare)
1056 {
1057 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1058 uint32_t start_addr, line_offset, line_compare;
1059
1060 line_offset = s->vga.cr[0x13]
1061 | ((s->vga.cr[0x1b] & 0x10) << 4);
1062 line_offset <<= 3;
1063 *pline_offset = line_offset;
1064
1065 start_addr = (s->vga.cr[0x0c] << 8)
1066 | s->vga.cr[0x0d]
1067 | ((s->vga.cr[0x1b] & 0x01) << 16)
1068 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1069 | ((s->vga.cr[0x1d] & 0x80) << 12);
1070 *pstart_addr = start_addr;
1071
1072 line_compare = s->vga.cr[0x18] |
1073 ((s->vga.cr[0x07] & 0x10) << 4) |
1074 ((s->vga.cr[0x09] & 0x40) << 3);
1075 *pline_compare = line_compare;
1076 }
1077
1078 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1079 {
1080 uint32_t ret = 16;
1081
1082 switch (s->cirrus_hidden_dac_data & 0xf) {
1083 case 0:
1084 ret = 15;
1085 break; /* Sierra HiColor */
1086 case 1:
1087 ret = 16;
1088 break; /* XGA HiColor */
1089 default:
1090 #ifdef DEBUG_CIRRUS
1091 printf("cirrus: invalid DAC value %x in 16bpp\n",
1092 (s->cirrus_hidden_dac_data & 0xf));
1093 #endif
1094 ret = 15; /* XXX */
1095 break;
1096 }
1097 return ret;
1098 }
1099
1100 static int cirrus_get_bpp(VGACommonState *s1)
1101 {
1102 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1103 uint32_t ret = 8;
1104
1105 if ((s->vga.sr[0x07] & 0x01) != 0) {
1106 /* Cirrus SVGA */
1107 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1108 case CIRRUS_SR7_BPP_8:
1109 ret = 8;
1110 break;
1111 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1112 ret = cirrus_get_bpp16_depth(s);
1113 break;
1114 case CIRRUS_SR7_BPP_24:
1115 ret = 24;
1116 break;
1117 case CIRRUS_SR7_BPP_16:
1118 ret = cirrus_get_bpp16_depth(s);
1119 break;
1120 case CIRRUS_SR7_BPP_32:
1121 ret = 32;
1122 break;
1123 default:
1124 #ifdef DEBUG_CIRRUS
1125 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1126 #endif
1127 ret = 8;
1128 break;
1129 }
1130 } else {
1131 /* VGA */
1132 ret = 0;
1133 }
1134
1135 return ret;
1136 }
1137
1138 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1139 {
1140 int width, height;
1141
1142 width = (s->cr[0x01] + 1) * 8;
1143 height = s->cr[0x12] |
1144 ((s->cr[0x07] & 0x02) << 7) |
1145 ((s->cr[0x07] & 0x40) << 3);
1146 height = (height + 1);
1147 /* interlace support */
1148 if (s->cr[0x1a] & 0x01)
1149 height = height * 2;
1150 *pwidth = width;
1151 *pheight = height;
1152 }
1153
1154 /***************************************
1155 *
1156 * bank memory
1157 *
1158 ***************************************/
1159
1160 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1161 {
1162 unsigned offset;
1163 unsigned limit;
1164
1165 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1166 offset = s->vga.gr[0x09 + bank_index];
1167 else /* single bank */
1168 offset = s->vga.gr[0x09];
1169
1170 if ((s->vga.gr[0x0b] & 0x20) != 0)
1171 offset <<= 14;
1172 else
1173 offset <<= 12;
1174
1175 if (s->real_vram_size <= offset)
1176 limit = 0;
1177 else
1178 limit = s->real_vram_size - offset;
1179
1180 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1181 if (limit > 0x8000) {
1182 offset += 0x8000;
1183 limit -= 0x8000;
1184 } else {
1185 limit = 0;
1186 }
1187 }
1188
1189 if (limit > 0) {
1190 s->cirrus_bank_base[bank_index] = offset;
1191 s->cirrus_bank_limit[bank_index] = limit;
1192 } else {
1193 s->cirrus_bank_base[bank_index] = 0;
1194 s->cirrus_bank_limit[bank_index] = 0;
1195 }
1196 }
1197
1198 /***************************************
1199 *
1200 * I/O access between 0x3c4-0x3c5
1201 *
1202 ***************************************/
1203
1204 static int cirrus_vga_read_sr(CirrusVGAState * s)
1205 {
1206 switch (s->vga.sr_index) {
1207 case 0x00: // Standard VGA
1208 case 0x01: // Standard VGA
1209 case 0x02: // Standard VGA
1210 case 0x03: // Standard VGA
1211 case 0x04: // Standard VGA
1212 return s->vga.sr[s->vga.sr_index];
1213 case 0x06: // Unlock Cirrus extensions
1214 return s->vga.sr[s->vga.sr_index];
1215 case 0x10:
1216 case 0x30:
1217 case 0x50:
1218 case 0x70: // Graphics Cursor X
1219 case 0x90:
1220 case 0xb0:
1221 case 0xd0:
1222 case 0xf0: // Graphics Cursor X
1223 return s->vga.sr[0x10];
1224 case 0x11:
1225 case 0x31:
1226 case 0x51:
1227 case 0x71: // Graphics Cursor Y
1228 case 0x91:
1229 case 0xb1:
1230 case 0xd1:
1231 case 0xf1: // Graphics Cursor Y
1232 return s->vga.sr[0x11];
1233 case 0x05: // ???
1234 case 0x07: // Extended Sequencer Mode
1235 case 0x08: // EEPROM Control
1236 case 0x09: // Scratch Register 0
1237 case 0x0a: // Scratch Register 1
1238 case 0x0b: // VCLK 0
1239 case 0x0c: // VCLK 1
1240 case 0x0d: // VCLK 2
1241 case 0x0e: // VCLK 3
1242 case 0x0f: // DRAM Control
1243 case 0x12: // Graphics Cursor Attribute
1244 case 0x13: // Graphics Cursor Pattern Address
1245 case 0x14: // Scratch Register 2
1246 case 0x15: // Scratch Register 3
1247 case 0x16: // Performance Tuning Register
1248 case 0x17: // Configuration Readback and Extended Control
1249 case 0x18: // Signature Generator Control
1250 case 0x19: // Signal Generator Result
1251 case 0x1a: // Signal Generator Result
1252 case 0x1b: // VCLK 0 Denominator & Post
1253 case 0x1c: // VCLK 1 Denominator & Post
1254 case 0x1d: // VCLK 2 Denominator & Post
1255 case 0x1e: // VCLK 3 Denominator & Post
1256 case 0x1f: // BIOS Write Enable and MCLK select
1257 #ifdef DEBUG_CIRRUS
1258 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1259 #endif
1260 return s->vga.sr[s->vga.sr_index];
1261 default:
1262 #ifdef DEBUG_CIRRUS
1263 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1264 #endif
1265 return 0xff;
1266 break;
1267 }
1268 }
1269
1270 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1271 {
1272 switch (s->vga.sr_index) {
1273 case 0x00: // Standard VGA
1274 case 0x01: // Standard VGA
1275 case 0x02: // Standard VGA
1276 case 0x03: // Standard VGA
1277 case 0x04: // Standard VGA
1278 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1279 if (s->vga.sr_index == 1)
1280 s->vga.update_retrace_info(&s->vga);
1281 break;
1282 case 0x06: // Unlock Cirrus extensions
1283 val &= 0x17;
1284 if (val == 0x12) {
1285 s->vga.sr[s->vga.sr_index] = 0x12;
1286 } else {
1287 s->vga.sr[s->vga.sr_index] = 0x0f;
1288 }
1289 break;
1290 case 0x10:
1291 case 0x30:
1292 case 0x50:
1293 case 0x70: // Graphics Cursor X
1294 case 0x90:
1295 case 0xb0:
1296 case 0xd0:
1297 case 0xf0: // Graphics Cursor X
1298 s->vga.sr[0x10] = val;
1299 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1300 break;
1301 case 0x11:
1302 case 0x31:
1303 case 0x51:
1304 case 0x71: // Graphics Cursor Y
1305 case 0x91:
1306 case 0xb1:
1307 case 0xd1:
1308 case 0xf1: // Graphics Cursor Y
1309 s->vga.sr[0x11] = val;
1310 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1311 break;
1312 case 0x07: // Extended Sequencer Mode
1313 cirrus_update_memory_access(s);
1314 case 0x08: // EEPROM Control
1315 case 0x09: // Scratch Register 0
1316 case 0x0a: // Scratch Register 1
1317 case 0x0b: // VCLK 0
1318 case 0x0c: // VCLK 1
1319 case 0x0d: // VCLK 2
1320 case 0x0e: // VCLK 3
1321 case 0x0f: // DRAM Control
1322 case 0x12: // Graphics Cursor Attribute
1323 case 0x13: // Graphics Cursor Pattern Address
1324 case 0x14: // Scratch Register 2
1325 case 0x15: // Scratch Register 3
1326 case 0x16: // Performance Tuning Register
1327 case 0x18: // Signature Generator Control
1328 case 0x19: // Signature Generator Result
1329 case 0x1a: // Signature Generator Result
1330 case 0x1b: // VCLK 0 Denominator & Post
1331 case 0x1c: // VCLK 1 Denominator & Post
1332 case 0x1d: // VCLK 2 Denominator & Post
1333 case 0x1e: // VCLK 3 Denominator & Post
1334 case 0x1f: // BIOS Write Enable and MCLK select
1335 s->vga.sr[s->vga.sr_index] = val;
1336 #ifdef DEBUG_CIRRUS
1337 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1338 s->vga.sr_index, val);
1339 #endif
1340 break;
1341 case 0x17: // Configuration Readback and Extended Control
1342 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1343 | (val & 0xc7);
1344 cirrus_update_memory_access(s);
1345 break;
1346 default:
1347 #ifdef DEBUG_CIRRUS
1348 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1349 s->vga.sr_index, val);
1350 #endif
1351 break;
1352 }
1353 }
1354
1355 /***************************************
1356 *
1357 * I/O access at 0x3c6
1358 *
1359 ***************************************/
1360
1361 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1362 {
1363 if (++s->cirrus_hidden_dac_lockindex == 5) {
1364 s->cirrus_hidden_dac_lockindex = 0;
1365 return s->cirrus_hidden_dac_data;
1366 }
1367 return 0xff;
1368 }
1369
1370 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1371 {
1372 if (s->cirrus_hidden_dac_lockindex == 4) {
1373 s->cirrus_hidden_dac_data = reg_value;
1374 #if defined(DEBUG_CIRRUS)
1375 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1376 #endif
1377 }
1378 s->cirrus_hidden_dac_lockindex = 0;
1379 }
1380
1381 /***************************************
1382 *
1383 * I/O access at 0x3c9
1384 *
1385 ***************************************/
1386
1387 static int cirrus_vga_read_palette(CirrusVGAState * s)
1388 {
1389 int val;
1390
1391 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1392 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1393 s->vga.dac_sub_index];
1394 } else {
1395 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1396 }
1397 if (++s->vga.dac_sub_index == 3) {
1398 s->vga.dac_sub_index = 0;
1399 s->vga.dac_read_index++;
1400 }
1401 return val;
1402 }
1403
1404 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1405 {
1406 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1407 if (++s->vga.dac_sub_index == 3) {
1408 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1409 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1410 s->vga.dac_cache, 3);
1411 } else {
1412 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1413 }
1414 /* XXX update cursor */
1415 s->vga.dac_sub_index = 0;
1416 s->vga.dac_write_index++;
1417 }
1418 }
1419
1420 /***************************************
1421 *
1422 * I/O access between 0x3ce-0x3cf
1423 *
1424 ***************************************/
1425
1426 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1427 {
1428 switch (reg_index) {
1429 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1430 return s->cirrus_shadow_gr0;
1431 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1432 return s->cirrus_shadow_gr1;
1433 case 0x02: // Standard VGA
1434 case 0x03: // Standard VGA
1435 case 0x04: // Standard VGA
1436 case 0x06: // Standard VGA
1437 case 0x07: // Standard VGA
1438 case 0x08: // Standard VGA
1439 return s->vga.gr[s->vga.gr_index];
1440 case 0x05: // Standard VGA, Cirrus extended mode
1441 default:
1442 break;
1443 }
1444
1445 if (reg_index < 0x3a) {
1446 return s->vga.gr[reg_index];
1447 } else {
1448 #ifdef DEBUG_CIRRUS
1449 printf("cirrus: inport gr_index %02x\n", reg_index);
1450 #endif
1451 return 0xff;
1452 }
1453 }
1454
1455 static void
1456 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1457 {
1458 #if defined(DEBUG_BITBLT) && 0
1459 printf("gr%02x: %02x\n", reg_index, reg_value);
1460 #endif
1461 switch (reg_index) {
1462 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1463 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1464 s->cirrus_shadow_gr0 = reg_value;
1465 break;
1466 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1467 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1468 s->cirrus_shadow_gr1 = reg_value;
1469 break;
1470 case 0x02: // Standard VGA
1471 case 0x03: // Standard VGA
1472 case 0x04: // Standard VGA
1473 case 0x06: // Standard VGA
1474 case 0x07: // Standard VGA
1475 case 0x08: // Standard VGA
1476 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1477 break;
1478 case 0x05: // Standard VGA, Cirrus extended mode
1479 s->vga.gr[reg_index] = reg_value & 0x7f;
1480 cirrus_update_memory_access(s);
1481 break;
1482 case 0x09: // bank offset #0
1483 case 0x0A: // bank offset #1
1484 s->vga.gr[reg_index] = reg_value;
1485 cirrus_update_bank_ptr(s, 0);
1486 cirrus_update_bank_ptr(s, 1);
1487 cirrus_update_memory_access(s);
1488 break;
1489 case 0x0B:
1490 s->vga.gr[reg_index] = reg_value;
1491 cirrus_update_bank_ptr(s, 0);
1492 cirrus_update_bank_ptr(s, 1);
1493 cirrus_update_memory_access(s);
1494 break;
1495 case 0x10: // BGCOLOR 0x0000ff00
1496 case 0x11: // FGCOLOR 0x0000ff00
1497 case 0x12: // BGCOLOR 0x00ff0000
1498 case 0x13: // FGCOLOR 0x00ff0000
1499 case 0x14: // BGCOLOR 0xff000000
1500 case 0x15: // FGCOLOR 0xff000000
1501 case 0x20: // BLT WIDTH 0x0000ff
1502 case 0x22: // BLT HEIGHT 0x0000ff
1503 case 0x24: // BLT DEST PITCH 0x0000ff
1504 case 0x26: // BLT SRC PITCH 0x0000ff
1505 case 0x28: // BLT DEST ADDR 0x0000ff
1506 case 0x29: // BLT DEST ADDR 0x00ff00
1507 case 0x2c: // BLT SRC ADDR 0x0000ff
1508 case 0x2d: // BLT SRC ADDR 0x00ff00
1509 case 0x2f: // BLT WRITEMASK
1510 case 0x30: // BLT MODE
1511 case 0x32: // RASTER OP
1512 case 0x33: // BLT MODEEXT
1513 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1514 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1515 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1516 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1517 s->vga.gr[reg_index] = reg_value;
1518 break;
1519 case 0x21: // BLT WIDTH 0x001f00
1520 case 0x23: // BLT HEIGHT 0x001f00
1521 case 0x25: // BLT DEST PITCH 0x001f00
1522 case 0x27: // BLT SRC PITCH 0x001f00
1523 s->vga.gr[reg_index] = reg_value & 0x1f;
1524 break;
1525 case 0x2a: // BLT DEST ADDR 0x3f0000
1526 s->vga.gr[reg_index] = reg_value & 0x3f;
1527 /* if auto start mode, starts bit blt now */
1528 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1529 cirrus_bitblt_start(s);
1530 }
1531 break;
1532 case 0x2e: // BLT SRC ADDR 0x3f0000
1533 s->vga.gr[reg_index] = reg_value & 0x3f;
1534 break;
1535 case 0x31: // BLT STATUS/START
1536 cirrus_write_bitblt(s, reg_value);
1537 break;
1538 default:
1539 #ifdef DEBUG_CIRRUS
1540 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1541 reg_value);
1542 #endif
1543 break;
1544 }
1545 }
1546
1547 /***************************************
1548 *
1549 * I/O access between 0x3d4-0x3d5
1550 *
1551 ***************************************/
1552
1553 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1554 {
1555 switch (reg_index) {
1556 case 0x00: // Standard VGA
1557 case 0x01: // Standard VGA
1558 case 0x02: // Standard VGA
1559 case 0x03: // Standard VGA
1560 case 0x04: // Standard VGA
1561 case 0x05: // Standard VGA
1562 case 0x06: // Standard VGA
1563 case 0x07: // Standard VGA
1564 case 0x08: // Standard VGA
1565 case 0x09: // Standard VGA
1566 case 0x0a: // Standard VGA
1567 case 0x0b: // Standard VGA
1568 case 0x0c: // Standard VGA
1569 case 0x0d: // Standard VGA
1570 case 0x0e: // Standard VGA
1571 case 0x0f: // Standard VGA
1572 case 0x10: // Standard VGA
1573 case 0x11: // Standard VGA
1574 case 0x12: // Standard VGA
1575 case 0x13: // Standard VGA
1576 case 0x14: // Standard VGA
1577 case 0x15: // Standard VGA
1578 case 0x16: // Standard VGA
1579 case 0x17: // Standard VGA
1580 case 0x18: // Standard VGA
1581 return s->vga.cr[s->vga.cr_index];
1582 case 0x24: // Attribute Controller Toggle Readback (R)
1583 return (s->vga.ar_flip_flop << 7);
1584 case 0x19: // Interlace End
1585 case 0x1a: // Miscellaneous Control
1586 case 0x1b: // Extended Display Control
1587 case 0x1c: // Sync Adjust and Genlock
1588 case 0x1d: // Overlay Extended Control
1589 case 0x22: // Graphics Data Latches Readback (R)
1590 case 0x25: // Part Status
1591 case 0x27: // Part ID (R)
1592 return s->vga.cr[s->vga.cr_index];
1593 case 0x26: // Attribute Controller Index Readback (R)
1594 return s->vga.ar_index & 0x3f;
1595 break;
1596 default:
1597 #ifdef DEBUG_CIRRUS
1598 printf("cirrus: inport cr_index %02x\n", reg_index);
1599 #endif
1600 return 0xff;
1601 }
1602 }
1603
1604 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1605 {
1606 switch (s->vga.cr_index) {
1607 case 0x00: // Standard VGA
1608 case 0x01: // Standard VGA
1609 case 0x02: // Standard VGA
1610 case 0x03: // Standard VGA
1611 case 0x04: // Standard VGA
1612 case 0x05: // Standard VGA
1613 case 0x06: // Standard VGA
1614 case 0x07: // Standard VGA
1615 case 0x08: // Standard VGA
1616 case 0x09: // Standard VGA
1617 case 0x0a: // Standard VGA
1618 case 0x0b: // Standard VGA
1619 case 0x0c: // Standard VGA
1620 case 0x0d: // Standard VGA
1621 case 0x0e: // Standard VGA
1622 case 0x0f: // Standard VGA
1623 case 0x10: // Standard VGA
1624 case 0x11: // Standard VGA
1625 case 0x12: // Standard VGA
1626 case 0x13: // Standard VGA
1627 case 0x14: // Standard VGA
1628 case 0x15: // Standard VGA
1629 case 0x16: // Standard VGA
1630 case 0x17: // Standard VGA
1631 case 0x18: // Standard VGA
1632 /* handle CR0-7 protection */
1633 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1634 /* can always write bit 4 of CR7 */
1635 if (s->vga.cr_index == 7)
1636 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1637 return;
1638 }
1639 s->vga.cr[s->vga.cr_index] = reg_value;
1640 switch(s->vga.cr_index) {
1641 case 0x00:
1642 case 0x04:
1643 case 0x05:
1644 case 0x06:
1645 case 0x07:
1646 case 0x11:
1647 case 0x17:
1648 s->vga.update_retrace_info(&s->vga);
1649 break;
1650 }
1651 break;
1652 case 0x19: // Interlace End
1653 case 0x1a: // Miscellaneous Control
1654 case 0x1b: // Extended Display Control
1655 case 0x1c: // Sync Adjust and Genlock
1656 case 0x1d: // Overlay Extended Control
1657 s->vga.cr[s->vga.cr_index] = reg_value;
1658 #ifdef DEBUG_CIRRUS
1659 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1660 s->vga.cr_index, reg_value);
1661 #endif
1662 break;
1663 case 0x22: // Graphics Data Latches Readback (R)
1664 case 0x24: // Attribute Controller Toggle Readback (R)
1665 case 0x26: // Attribute Controller Index Readback (R)
1666 case 0x27: // Part ID (R)
1667 break;
1668 case 0x25: // Part Status
1669 default:
1670 #ifdef DEBUG_CIRRUS
1671 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1672 s->vga.cr_index, reg_value);
1673 #endif
1674 break;
1675 }
1676 }
1677
1678 /***************************************
1679 *
1680 * memory-mapped I/O (bitblt)
1681 *
1682 ***************************************/
1683
1684 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1685 {
1686 int value = 0xff;
1687
1688 switch (address) {
1689 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1690 value = cirrus_vga_read_gr(s, 0x00);
1691 break;
1692 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1693 value = cirrus_vga_read_gr(s, 0x10);
1694 break;
1695 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1696 value = cirrus_vga_read_gr(s, 0x12);
1697 break;
1698 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1699 value = cirrus_vga_read_gr(s, 0x14);
1700 break;
1701 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1702 value = cirrus_vga_read_gr(s, 0x01);
1703 break;
1704 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1705 value = cirrus_vga_read_gr(s, 0x11);
1706 break;
1707 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1708 value = cirrus_vga_read_gr(s, 0x13);
1709 break;
1710 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1711 value = cirrus_vga_read_gr(s, 0x15);
1712 break;
1713 case (CIRRUS_MMIO_BLTWIDTH + 0):
1714 value = cirrus_vga_read_gr(s, 0x20);
1715 break;
1716 case (CIRRUS_MMIO_BLTWIDTH + 1):
1717 value = cirrus_vga_read_gr(s, 0x21);
1718 break;
1719 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1720 value = cirrus_vga_read_gr(s, 0x22);
1721 break;
1722 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1723 value = cirrus_vga_read_gr(s, 0x23);
1724 break;
1725 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1726 value = cirrus_vga_read_gr(s, 0x24);
1727 break;
1728 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1729 value = cirrus_vga_read_gr(s, 0x25);
1730 break;
1731 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1732 value = cirrus_vga_read_gr(s, 0x26);
1733 break;
1734 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1735 value = cirrus_vga_read_gr(s, 0x27);
1736 break;
1737 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1738 value = cirrus_vga_read_gr(s, 0x28);
1739 break;
1740 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1741 value = cirrus_vga_read_gr(s, 0x29);
1742 break;
1743 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1744 value = cirrus_vga_read_gr(s, 0x2a);
1745 break;
1746 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1747 value = cirrus_vga_read_gr(s, 0x2c);
1748 break;
1749 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1750 value = cirrus_vga_read_gr(s, 0x2d);
1751 break;
1752 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1753 value = cirrus_vga_read_gr(s, 0x2e);
1754 break;
1755 case CIRRUS_MMIO_BLTWRITEMASK:
1756 value = cirrus_vga_read_gr(s, 0x2f);
1757 break;
1758 case CIRRUS_MMIO_BLTMODE:
1759 value = cirrus_vga_read_gr(s, 0x30);
1760 break;
1761 case CIRRUS_MMIO_BLTROP:
1762 value = cirrus_vga_read_gr(s, 0x32);
1763 break;
1764 case CIRRUS_MMIO_BLTMODEEXT:
1765 value = cirrus_vga_read_gr(s, 0x33);
1766 break;
1767 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1768 value = cirrus_vga_read_gr(s, 0x34);
1769 break;
1770 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1771 value = cirrus_vga_read_gr(s, 0x35);
1772 break;
1773 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1774 value = cirrus_vga_read_gr(s, 0x38);
1775 break;
1776 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1777 value = cirrus_vga_read_gr(s, 0x39);
1778 break;
1779 case CIRRUS_MMIO_BLTSTATUS:
1780 value = cirrus_vga_read_gr(s, 0x31);
1781 break;
1782 default:
1783 #ifdef DEBUG_CIRRUS
1784 printf("cirrus: mmio read - address 0x%04x\n", address);
1785 #endif
1786 break;
1787 }
1788
1789 return (uint8_t) value;
1790 }
1791
1792 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1793 uint8_t value)
1794 {
1795 switch (address) {
1796 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1797 cirrus_vga_write_gr(s, 0x00, value);
1798 break;
1799 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1800 cirrus_vga_write_gr(s, 0x10, value);
1801 break;
1802 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1803 cirrus_vga_write_gr(s, 0x12, value);
1804 break;
1805 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1806 cirrus_vga_write_gr(s, 0x14, value);
1807 break;
1808 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1809 cirrus_vga_write_gr(s, 0x01, value);
1810 break;
1811 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1812 cirrus_vga_write_gr(s, 0x11, value);
1813 break;
1814 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1815 cirrus_vga_write_gr(s, 0x13, value);
1816 break;
1817 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1818 cirrus_vga_write_gr(s, 0x15, value);
1819 break;
1820 case (CIRRUS_MMIO_BLTWIDTH + 0):
1821 cirrus_vga_write_gr(s, 0x20, value);
1822 break;
1823 case (CIRRUS_MMIO_BLTWIDTH + 1):
1824 cirrus_vga_write_gr(s, 0x21, value);
1825 break;
1826 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1827 cirrus_vga_write_gr(s, 0x22, value);
1828 break;
1829 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1830 cirrus_vga_write_gr(s, 0x23, value);
1831 break;
1832 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1833 cirrus_vga_write_gr(s, 0x24, value);
1834 break;
1835 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1836 cirrus_vga_write_gr(s, 0x25, value);
1837 break;
1838 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1839 cirrus_vga_write_gr(s, 0x26, value);
1840 break;
1841 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1842 cirrus_vga_write_gr(s, 0x27, value);
1843 break;
1844 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1845 cirrus_vga_write_gr(s, 0x28, value);
1846 break;
1847 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1848 cirrus_vga_write_gr(s, 0x29, value);
1849 break;
1850 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1851 cirrus_vga_write_gr(s, 0x2a, value);
1852 break;
1853 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1854 /* ignored */
1855 break;
1856 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1857 cirrus_vga_write_gr(s, 0x2c, value);
1858 break;
1859 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1860 cirrus_vga_write_gr(s, 0x2d, value);
1861 break;
1862 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1863 cirrus_vga_write_gr(s, 0x2e, value);
1864 break;
1865 case CIRRUS_MMIO_BLTWRITEMASK:
1866 cirrus_vga_write_gr(s, 0x2f, value);
1867 break;
1868 case CIRRUS_MMIO_BLTMODE:
1869 cirrus_vga_write_gr(s, 0x30, value);
1870 break;
1871 case CIRRUS_MMIO_BLTROP:
1872 cirrus_vga_write_gr(s, 0x32, value);
1873 break;
1874 case CIRRUS_MMIO_BLTMODEEXT:
1875 cirrus_vga_write_gr(s, 0x33, value);
1876 break;
1877 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1878 cirrus_vga_write_gr(s, 0x34, value);
1879 break;
1880 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1881 cirrus_vga_write_gr(s, 0x35, value);
1882 break;
1883 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1884 cirrus_vga_write_gr(s, 0x38, value);
1885 break;
1886 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1887 cirrus_vga_write_gr(s, 0x39, value);
1888 break;
1889 case CIRRUS_MMIO_BLTSTATUS:
1890 cirrus_vga_write_gr(s, 0x31, value);
1891 break;
1892 default:
1893 #ifdef DEBUG_CIRRUS
1894 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1895 address, value);
1896 #endif
1897 break;
1898 }
1899 }
1900
1901 /***************************************
1902 *
1903 * write mode 4/5
1904 *
1905 ***************************************/
1906
1907 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1908 unsigned mode,
1909 unsigned offset,
1910 uint32_t mem_value)
1911 {
1912 int x;
1913 unsigned val = mem_value;
1914 uint8_t *dst;
1915
1916 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1917 for (x = 0; x < 8; x++) {
1918 if (val & 0x80) {
1919 *dst = s->cirrus_shadow_gr1;
1920 } else if (mode == 5) {
1921 *dst = s->cirrus_shadow_gr0;
1922 }
1923 val <<= 1;
1924 dst++;
1925 }
1926 memory_region_set_dirty(&s->vga.vram, offset, 8);
1927 }
1928
1929 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1930 unsigned mode,
1931 unsigned offset,
1932 uint32_t mem_value)
1933 {
1934 int x;
1935 unsigned val = mem_value;
1936 uint8_t *dst;
1937
1938 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1939 for (x = 0; x < 8; x++) {
1940 if (val & 0x80) {
1941 *dst = s->cirrus_shadow_gr1;
1942 *(dst + 1) = s->vga.gr[0x11];
1943 } else if (mode == 5) {
1944 *dst = s->cirrus_shadow_gr0;
1945 *(dst + 1) = s->vga.gr[0x10];
1946 }
1947 val <<= 1;
1948 dst += 2;
1949 }
1950 memory_region_set_dirty(&s->vga.vram, offset, 16);
1951 }
1952
1953 /***************************************
1954 *
1955 * memory access between 0xa0000-0xbffff
1956 *
1957 ***************************************/
1958
1959 static uint64_t cirrus_vga_mem_read(void *opaque,
1960 hwaddr addr,
1961 uint32_t size)
1962 {
1963 CirrusVGAState *s = opaque;
1964 unsigned bank_index;
1965 unsigned bank_offset;
1966 uint32_t val;
1967
1968 if ((s->vga.sr[0x07] & 0x01) == 0) {
1969 return vga_mem_readb(&s->vga, addr);
1970 }
1971
1972 if (addr < 0x10000) {
1973 /* XXX handle bitblt */
1974 /* video memory */
1975 bank_index = addr >> 15;
1976 bank_offset = addr & 0x7fff;
1977 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1978 bank_offset += s->cirrus_bank_base[bank_index];
1979 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
1980 bank_offset <<= 4;
1981 } else if (s->vga.gr[0x0B] & 0x02) {
1982 bank_offset <<= 3;
1983 }
1984 bank_offset &= s->cirrus_addr_mask;
1985 val = *(s->vga.vram_ptr + bank_offset);
1986 } else
1987 val = 0xff;
1988 } else if (addr >= 0x18000 && addr < 0x18100) {
1989 /* memory-mapped I/O */
1990 val = 0xff;
1991 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
1992 val = cirrus_mmio_blt_read(s, addr & 0xff);
1993 }
1994 } else {
1995 val = 0xff;
1996 #ifdef DEBUG_CIRRUS
1997 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
1998 #endif
1999 }
2000 return val;
2001 }
2002
2003 static void cirrus_vga_mem_write(void *opaque,
2004 hwaddr addr,
2005 uint64_t mem_value,
2006 uint32_t size)
2007 {
2008 CirrusVGAState *s = opaque;
2009 unsigned bank_index;
2010 unsigned bank_offset;
2011 unsigned mode;
2012
2013 if ((s->vga.sr[0x07] & 0x01) == 0) {
2014 vga_mem_writeb(&s->vga, addr, mem_value);
2015 return;
2016 }
2017
2018 if (addr < 0x10000) {
2019 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2020 /* bitblt */
2021 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2022 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2023 cirrus_bitblt_cputovideo_next(s);
2024 }
2025 } else {
2026 /* video memory */
2027 bank_index = addr >> 15;
2028 bank_offset = addr & 0x7fff;
2029 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2030 bank_offset += s->cirrus_bank_base[bank_index];
2031 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2032 bank_offset <<= 4;
2033 } else if (s->vga.gr[0x0B] & 0x02) {
2034 bank_offset <<= 3;
2035 }
2036 bank_offset &= s->cirrus_addr_mask;
2037 mode = s->vga.gr[0x05] & 0x7;
2038 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2039 *(s->vga.vram_ptr + bank_offset) = mem_value;
2040 memory_region_set_dirty(&s->vga.vram, bank_offset,
2041 sizeof(mem_value));
2042 } else {
2043 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2044 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2045 bank_offset,
2046 mem_value);
2047 } else {
2048 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2049 bank_offset,
2050 mem_value);
2051 }
2052 }
2053 }
2054 }
2055 } else if (addr >= 0x18000 && addr < 0x18100) {
2056 /* memory-mapped I/O */
2057 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2058 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2059 }
2060 } else {
2061 #ifdef DEBUG_CIRRUS
2062 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2063 mem_value);
2064 #endif
2065 }
2066 }
2067
2068 static const MemoryRegionOps cirrus_vga_mem_ops = {
2069 .read = cirrus_vga_mem_read,
2070 .write = cirrus_vga_mem_write,
2071 .endianness = DEVICE_LITTLE_ENDIAN,
2072 .impl = {
2073 .min_access_size = 1,
2074 .max_access_size = 1,
2075 },
2076 };
2077
2078 /***************************************
2079 *
2080 * hardware cursor
2081 *
2082 ***************************************/
2083
2084 static inline void invalidate_cursor1(CirrusVGAState *s)
2085 {
2086 if (s->last_hw_cursor_size) {
2087 vga_invalidate_scanlines(&s->vga,
2088 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2089 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2090 }
2091 }
2092
2093 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2094 {
2095 const uint8_t *src;
2096 uint32_t content;
2097 int y, y_min, y_max;
2098
2099 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2100 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2101 src += (s->vga.sr[0x13] & 0x3c) * 256;
2102 y_min = 64;
2103 y_max = -1;
2104 for(y = 0; y < 64; y++) {
2105 content = ((uint32_t *)src)[0] |
2106 ((uint32_t *)src)[1] |
2107 ((uint32_t *)src)[2] |
2108 ((uint32_t *)src)[3];
2109 if (content) {
2110 if (y < y_min)
2111 y_min = y;
2112 if (y > y_max)
2113 y_max = y;
2114 }
2115 src += 16;
2116 }
2117 } else {
2118 src += (s->vga.sr[0x13] & 0x3f) * 256;
2119 y_min = 32;
2120 y_max = -1;
2121 for(y = 0; y < 32; y++) {
2122 content = ((uint32_t *)src)[0] |
2123 ((uint32_t *)(src + 128))[0];
2124 if (content) {
2125 if (y < y_min)
2126 y_min = y;
2127 if (y > y_max)
2128 y_max = y;
2129 }
2130 src += 4;
2131 }
2132 }
2133 if (y_min > y_max) {
2134 s->last_hw_cursor_y_start = 0;
2135 s->last_hw_cursor_y_end = 0;
2136 } else {
2137 s->last_hw_cursor_y_start = y_min;
2138 s->last_hw_cursor_y_end = y_max + 1;
2139 }
2140 }
2141
2142 /* NOTE: we do not currently handle the cursor bitmap change, so we
2143 update the cursor only if it moves. */
2144 static void cirrus_cursor_invalidate(VGACommonState *s1)
2145 {
2146 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2147 int size;
2148
2149 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2150 size = 0;
2151 } else {
2152 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2153 size = 64;
2154 else
2155 size = 32;
2156 }
2157 /* invalidate last cursor and new cursor if any change */
2158 if (s->last_hw_cursor_size != size ||
2159 s->last_hw_cursor_x != s->hw_cursor_x ||
2160 s->last_hw_cursor_y != s->hw_cursor_y) {
2161
2162 invalidate_cursor1(s);
2163
2164 s->last_hw_cursor_size = size;
2165 s->last_hw_cursor_x = s->hw_cursor_x;
2166 s->last_hw_cursor_y = s->hw_cursor_y;
2167 /* compute the real cursor min and max y */
2168 cirrus_cursor_compute_yrange(s);
2169 invalidate_cursor1(s);
2170 }
2171 }
2172
2173 #define DEPTH 8
2174 #include "cirrus_vga_template.h"
2175
2176 #define DEPTH 16
2177 #include "cirrus_vga_template.h"
2178
2179 #define DEPTH 32
2180 #include "cirrus_vga_template.h"
2181
2182 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2183 {
2184 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2185 DisplaySurface *surface = qemu_console_surface(s->vga.con);
2186 int w, h, bpp, x1, x2, poffset;
2187 unsigned int color0, color1;
2188 const uint8_t *palette, *src;
2189 uint32_t content;
2190
2191 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2192 return;
2193 /* fast test to see if the cursor intersects with the scan line */
2194 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2195 h = 64;
2196 } else {
2197 h = 32;
2198 }
2199 if (scr_y < s->hw_cursor_y ||
2200 scr_y >= (s->hw_cursor_y + h))
2201 return;
2202
2203 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2204 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2205 src += (s->vga.sr[0x13] & 0x3c) * 256;
2206 src += (scr_y - s->hw_cursor_y) * 16;
2207 poffset = 8;
2208 content = ((uint32_t *)src)[0] |
2209 ((uint32_t *)src)[1] |
2210 ((uint32_t *)src)[2] |
2211 ((uint32_t *)src)[3];
2212 } else {
2213 src += (s->vga.sr[0x13] & 0x3f) * 256;
2214 src += (scr_y - s->hw_cursor_y) * 4;
2215 poffset = 128;
2216 content = ((uint32_t *)src)[0] |
2217 ((uint32_t *)(src + 128))[0];
2218 }
2219 /* if nothing to draw, no need to continue */
2220 if (!content)
2221 return;
2222 w = h;
2223
2224 x1 = s->hw_cursor_x;
2225 if (x1 >= s->vga.last_scr_width)
2226 return;
2227 x2 = s->hw_cursor_x + w;
2228 if (x2 > s->vga.last_scr_width)
2229 x2 = s->vga.last_scr_width;
2230 w = x2 - x1;
2231 palette = s->cirrus_hidden_palette;
2232 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2233 c6_to_8(palette[0x0 * 3 + 1]),
2234 c6_to_8(palette[0x0 * 3 + 2]));
2235 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2236 c6_to_8(palette[0xf * 3 + 1]),
2237 c6_to_8(palette[0xf * 3 + 2]));
2238 bpp = surface_bytes_per_pixel(surface);
2239 d1 += x1 * bpp;
2240 switch (surface_bits_per_pixel(surface)) {
2241 default:
2242 break;
2243 case 8:
2244 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2245 break;
2246 case 15:
2247 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2248 break;
2249 case 16:
2250 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2251 break;
2252 case 32:
2253 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2254 break;
2255 }
2256 }
2257
2258 /***************************************
2259 *
2260 * LFB memory access
2261 *
2262 ***************************************/
2263
2264 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2265 unsigned size)
2266 {
2267 CirrusVGAState *s = opaque;
2268 uint32_t ret;
2269
2270 addr &= s->cirrus_addr_mask;
2271
2272 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2273 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2274 /* memory-mapped I/O */
2275 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2276 } else if (0) {
2277 /* XXX handle bitblt */
2278 ret = 0xff;
2279 } else {
2280 /* video memory */
2281 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2282 addr <<= 4;
2283 } else if (s->vga.gr[0x0B] & 0x02) {
2284 addr <<= 3;
2285 }
2286 addr &= s->cirrus_addr_mask;
2287 ret = *(s->vga.vram_ptr + addr);
2288 }
2289
2290 return ret;
2291 }
2292
2293 static void cirrus_linear_write(void *opaque, hwaddr addr,
2294 uint64_t val, unsigned size)
2295 {
2296 CirrusVGAState *s = opaque;
2297 unsigned mode;
2298
2299 addr &= s->cirrus_addr_mask;
2300
2301 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2302 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2303 /* memory-mapped I/O */
2304 cirrus_mmio_blt_write(s, addr & 0xff, val);
2305 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2306 /* bitblt */
2307 *s->cirrus_srcptr++ = (uint8_t) val;
2308 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2309 cirrus_bitblt_cputovideo_next(s);
2310 }
2311 } else {
2312 /* video memory */
2313 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2314 addr <<= 4;
2315 } else if (s->vga.gr[0x0B] & 0x02) {
2316 addr <<= 3;
2317 }
2318 addr &= s->cirrus_addr_mask;
2319
2320 mode = s->vga.gr[0x05] & 0x7;
2321 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2322 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2323 memory_region_set_dirty(&s->vga.vram, addr, 1);
2324 } else {
2325 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2326 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2327 } else {
2328 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2329 }
2330 }
2331 }
2332 }
2333
2334 /***************************************
2335 *
2336 * system to screen memory access
2337 *
2338 ***************************************/
2339
2340
2341 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2342 hwaddr addr,
2343 unsigned size)
2344 {
2345 CirrusVGAState *s = opaque;
2346 uint32_t ret;
2347
2348 /* XXX handle bitblt */
2349 (void)s;
2350 ret = 0xff;
2351 return ret;
2352 }
2353
2354 static void cirrus_linear_bitblt_write(void *opaque,
2355 hwaddr addr,
2356 uint64_t val,
2357 unsigned size)
2358 {
2359 CirrusVGAState *s = opaque;
2360
2361 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2362 /* bitblt */
2363 *s->cirrus_srcptr++ = (uint8_t) val;
2364 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2365 cirrus_bitblt_cputovideo_next(s);
2366 }
2367 }
2368 }
2369
2370 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2371 .read = cirrus_linear_bitblt_read,
2372 .write = cirrus_linear_bitblt_write,
2373 .endianness = DEVICE_LITTLE_ENDIAN,
2374 .impl = {
2375 .min_access_size = 1,
2376 .max_access_size = 1,
2377 },
2378 };
2379
2380 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2381 {
2382 MemoryRegion *mr = &s->cirrus_bank[bank];
2383 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2384 && !((s->vga.sr[0x07] & 0x01) == 0)
2385 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2386 && !(s->vga.gr[0x0B] & 0x02);
2387
2388 memory_region_set_enabled(mr, enabled);
2389 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2390 }
2391
2392 static void map_linear_vram(CirrusVGAState *s)
2393 {
2394 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2395 s->linear_vram = true;
2396 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2397 }
2398 map_linear_vram_bank(s, 0);
2399 map_linear_vram_bank(s, 1);
2400 }
2401
2402 static void unmap_linear_vram(CirrusVGAState *s)
2403 {
2404 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2405 s->linear_vram = false;
2406 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2407 }
2408 memory_region_set_enabled(&s->cirrus_bank[0], false);
2409 memory_region_set_enabled(&s->cirrus_bank[1], false);
2410 }
2411
2412 /* Compute the memory access functions */
2413 static void cirrus_update_memory_access(CirrusVGAState *s)
2414 {
2415 unsigned mode;
2416
2417 memory_region_transaction_begin();
2418 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2419 goto generic_io;
2420 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2421 goto generic_io;
2422 } else {
2423 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2424 goto generic_io;
2425 } else if (s->vga.gr[0x0B] & 0x02) {
2426 goto generic_io;
2427 }
2428
2429 mode = s->vga.gr[0x05] & 0x7;
2430 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2431 map_linear_vram(s);
2432 } else {
2433 generic_io:
2434 unmap_linear_vram(s);
2435 }
2436 }
2437 memory_region_transaction_commit();
2438 }
2439
2440
2441 /* I/O ports */
2442
2443 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2444 unsigned size)
2445 {
2446 CirrusVGAState *c = opaque;
2447 VGACommonState *s = &c->vga;
2448 int val, index;
2449
2450 qemu_flush_coalesced_mmio_buffer();
2451 addr += 0x3b0;
2452
2453 if (vga_ioport_invalid(s, addr)) {
2454 val = 0xff;
2455 } else {
2456 switch (addr) {
2457 case 0x3c0:
2458 if (s->ar_flip_flop == 0) {
2459 val = s->ar_index;
2460 } else {
2461 val = 0;
2462 }
2463 break;
2464 case 0x3c1:
2465 index = s->ar_index & 0x1f;
2466 if (index < 21)
2467 val = s->ar[index];
2468 else
2469 val = 0;
2470 break;
2471 case 0x3c2:
2472 val = s->st00;
2473 break;
2474 case 0x3c4:
2475 val = s->sr_index;
2476 break;
2477 case 0x3c5:
2478 val = cirrus_vga_read_sr(c);
2479 break;
2480 #ifdef DEBUG_VGA_REG
2481 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2482 #endif
2483 break;
2484 case 0x3c6:
2485 val = cirrus_read_hidden_dac(c);
2486 break;
2487 case 0x3c7:
2488 val = s->dac_state;
2489 break;
2490 case 0x3c8:
2491 val = s->dac_write_index;
2492 c->cirrus_hidden_dac_lockindex = 0;
2493 break;
2494 case 0x3c9:
2495 val = cirrus_vga_read_palette(c);
2496 break;
2497 case 0x3ca:
2498 val = s->fcr;
2499 break;
2500 case 0x3cc:
2501 val = s->msr;
2502 break;
2503 case 0x3ce:
2504 val = s->gr_index;
2505 break;
2506 case 0x3cf:
2507 val = cirrus_vga_read_gr(c, s->gr_index);
2508 #ifdef DEBUG_VGA_REG
2509 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2510 #endif
2511 break;
2512 case 0x3b4:
2513 case 0x3d4:
2514 val = s->cr_index;
2515 break;
2516 case 0x3b5:
2517 case 0x3d5:
2518 val = cirrus_vga_read_cr(c, s->cr_index);
2519 #ifdef DEBUG_VGA_REG
2520 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2521 #endif
2522 break;
2523 case 0x3ba:
2524 case 0x3da:
2525 /* just toggle to fool polling */
2526 val = s->st01 = s->retrace(s);
2527 s->ar_flip_flop = 0;
2528 break;
2529 default:
2530 val = 0x00;
2531 break;
2532 }
2533 }
2534 #if defined(DEBUG_VGA)
2535 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2536 #endif
2537 return val;
2538 }
2539
2540 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2541 unsigned size)
2542 {
2543 CirrusVGAState *c = opaque;
2544 VGACommonState *s = &c->vga;
2545 int index;
2546
2547 qemu_flush_coalesced_mmio_buffer();
2548 addr += 0x3b0;
2549
2550 /* check port range access depending on color/monochrome mode */
2551 if (vga_ioport_invalid(s, addr)) {
2552 return;
2553 }
2554 #ifdef DEBUG_VGA
2555 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2556 #endif
2557
2558 switch (addr) {
2559 case 0x3c0:
2560 if (s->ar_flip_flop == 0) {
2561 val &= 0x3f;
2562 s->ar_index = val;
2563 } else {
2564 index = s->ar_index & 0x1f;
2565 switch (index) {
2566 case 0x00 ... 0x0f:
2567 s->ar[index] = val & 0x3f;
2568 break;
2569 case 0x10:
2570 s->ar[index] = val & ~0x10;
2571 break;
2572 case 0x11:
2573 s->ar[index] = val;
2574 break;
2575 case 0x12:
2576 s->ar[index] = val & ~0xc0;
2577 break;
2578 case 0x13:
2579 s->ar[index] = val & ~0xf0;
2580 break;
2581 case 0x14:
2582 s->ar[index] = val & ~0xf0;
2583 break;
2584 default:
2585 break;
2586 }
2587 }
2588 s->ar_flip_flop ^= 1;
2589 break;
2590 case 0x3c2:
2591 s->msr = val & ~0x10;
2592 s->update_retrace_info(s);
2593 break;
2594 case 0x3c4:
2595 s->sr_index = val;
2596 break;
2597 case 0x3c5:
2598 #ifdef DEBUG_VGA_REG
2599 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2600 #endif
2601 cirrus_vga_write_sr(c, val);
2602 break;
2603 break;
2604 case 0x3c6:
2605 cirrus_write_hidden_dac(c, val);
2606 break;
2607 case 0x3c7:
2608 s->dac_read_index = val;
2609 s->dac_sub_index = 0;
2610 s->dac_state = 3;
2611 break;
2612 case 0x3c8:
2613 s->dac_write_index = val;
2614 s->dac_sub_index = 0;
2615 s->dac_state = 0;
2616 break;
2617 case 0x3c9:
2618 cirrus_vga_write_palette(c, val);
2619 break;
2620 case 0x3ce:
2621 s->gr_index = val;
2622 break;
2623 case 0x3cf:
2624 #ifdef DEBUG_VGA_REG
2625 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2626 #endif
2627 cirrus_vga_write_gr(c, s->gr_index, val);
2628 break;
2629 case 0x3b4:
2630 case 0x3d4:
2631 s->cr_index = val;
2632 break;
2633 case 0x3b5:
2634 case 0x3d5:
2635 #ifdef DEBUG_VGA_REG
2636 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2637 #endif
2638 cirrus_vga_write_cr(c, val);
2639 break;
2640 case 0x3ba:
2641 case 0x3da:
2642 s->fcr = val & 0x10;
2643 break;
2644 }
2645 }
2646
2647 /***************************************
2648 *
2649 * memory-mapped I/O access
2650 *
2651 ***************************************/
2652
2653 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2654 unsigned size)
2655 {
2656 CirrusVGAState *s = opaque;
2657
2658 if (addr >= 0x100) {
2659 return cirrus_mmio_blt_read(s, addr - 0x100);
2660 } else {
2661 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2662 }
2663 }
2664
2665 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2666 uint64_t val, unsigned size)
2667 {
2668 CirrusVGAState *s = opaque;
2669
2670 if (addr >= 0x100) {
2671 cirrus_mmio_blt_write(s, addr - 0x100, val);
2672 } else {
2673 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2674 }
2675 }
2676
2677 static const MemoryRegionOps cirrus_mmio_io_ops = {
2678 .read = cirrus_mmio_read,
2679 .write = cirrus_mmio_write,
2680 .endianness = DEVICE_LITTLE_ENDIAN,
2681 .impl = {
2682 .min_access_size = 1,
2683 .max_access_size = 1,
2684 },
2685 };
2686
2687 /* load/save state */
2688
2689 static int cirrus_post_load(void *opaque, int version_id)
2690 {
2691 CirrusVGAState *s = opaque;
2692
2693 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2694 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2695
2696 cirrus_update_memory_access(s);
2697 /* force refresh */
2698 s->vga.graphic_mode = -1;
2699 cirrus_update_bank_ptr(s, 0);
2700 cirrus_update_bank_ptr(s, 1);
2701 return 0;
2702 }
2703
2704 static const VMStateDescription vmstate_cirrus_vga = {
2705 .name = "cirrus_vga",
2706 .version_id = 2,
2707 .minimum_version_id = 1,
2708 .minimum_version_id_old = 1,
2709 .post_load = cirrus_post_load,
2710 .fields = (VMStateField []) {
2711 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2712 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2713 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2714 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2715 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2716 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2717 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2718 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2719 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2720 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2721 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2722 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2723 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2724 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2725 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2726 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2727 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2728 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2729 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2730 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2731 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2732 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2733 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2734 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2735 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2736 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
2737 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
2738 /* XXX: we do not save the bitblt state - we assume we do not save
2739 the state when the blitter is active */
2740 VMSTATE_END_OF_LIST()
2741 }
2742 };
2743
2744 static const VMStateDescription vmstate_pci_cirrus_vga = {
2745 .name = "cirrus_vga",
2746 .version_id = 2,
2747 .minimum_version_id = 2,
2748 .minimum_version_id_old = 2,
2749 .fields = (VMStateField []) {
2750 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2751 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2752 vmstate_cirrus_vga, CirrusVGAState),
2753 VMSTATE_END_OF_LIST()
2754 }
2755 };
2756
2757 /***************************************
2758 *
2759 * initialize
2760 *
2761 ***************************************/
2762
2763 static void cirrus_reset(void *opaque)
2764 {
2765 CirrusVGAState *s = opaque;
2766
2767 vga_common_reset(&s->vga);
2768 unmap_linear_vram(s);
2769 s->vga.sr[0x06] = 0x0f;
2770 if (s->device_id == CIRRUS_ID_CLGD5446) {
2771 /* 4MB 64 bit memory config, always PCI */
2772 s->vga.sr[0x1F] = 0x2d; // MemClock
2773 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2774 s->vga.sr[0x0f] = 0x98;
2775 s->vga.sr[0x17] = 0x20;
2776 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2777 } else {
2778 s->vga.sr[0x1F] = 0x22; // MemClock
2779 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2780 s->vga.sr[0x17] = s->bustype;
2781 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2782 }
2783 s->vga.cr[0x27] = s->device_id;
2784
2785 s->cirrus_hidden_dac_lockindex = 5;
2786 s->cirrus_hidden_dac_data = 0;
2787 }
2788
2789 static const MemoryRegionOps cirrus_linear_io_ops = {
2790 .read = cirrus_linear_read,
2791 .write = cirrus_linear_write,
2792 .endianness = DEVICE_LITTLE_ENDIAN,
2793 .impl = {
2794 .min_access_size = 1,
2795 .max_access_size = 1,
2796 },
2797 };
2798
2799 static const MemoryRegionOps cirrus_vga_io_ops = {
2800 .read = cirrus_vga_ioport_read,
2801 .write = cirrus_vga_ioport_write,
2802 .endianness = DEVICE_LITTLE_ENDIAN,
2803 .impl = {
2804 .min_access_size = 1,
2805 .max_access_size = 1,
2806 },
2807 };
2808
2809 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci,
2810 MemoryRegion *system_memory,
2811 MemoryRegion *system_io)
2812 {
2813 int i;
2814 static int inited;
2815
2816 if (!inited) {
2817 inited = 1;
2818 for(i = 0;i < 256; i++)
2819 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2820 rop_to_index[CIRRUS_ROP_0] = 0;
2821 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2822 rop_to_index[CIRRUS_ROP_NOP] = 2;
2823 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2824 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2825 rop_to_index[CIRRUS_ROP_SRC] = 5;
2826 rop_to_index[CIRRUS_ROP_1] = 6;
2827 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2828 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2829 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2830 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2831 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2832 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2833 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2834 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2835 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2836 s->device_id = device_id;
2837 if (is_pci)
2838 s->bustype = CIRRUS_BUSTYPE_PCI;
2839 else
2840 s->bustype = CIRRUS_BUSTYPE_ISA;
2841 }
2842
2843 /* Register ioport 0x3b0 - 0x3df */
2844 memory_region_init_io(&s->cirrus_vga_io, &cirrus_vga_io_ops, s,
2845 "cirrus-io", 0x30);
2846 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2847
2848 memory_region_init(&s->low_mem_container,
2849 "cirrus-lowmem-container",
2850 0x20000);
2851
2852 memory_region_init_io(&s->low_mem, &cirrus_vga_mem_ops, s,
2853 "cirrus-low-memory", 0x20000);
2854 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2855 for (i = 0; i < 2; ++i) {
2856 static const char *names[] = { "vga.bank0", "vga.bank1" };
2857 MemoryRegion *bank = &s->cirrus_bank[i];
2858 memory_region_init_alias(bank, names[i], &s->vga.vram, 0, 0x8000);
2859 memory_region_set_enabled(bank, false);
2860 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2861 bank, 1);
2862 }
2863 memory_region_add_subregion_overlap(system_memory,
2864 isa_mem_base + 0x000a0000,
2865 &s->low_mem_container,
2866 1);
2867 memory_region_set_coalescing(&s->low_mem);
2868
2869 /* I/O handler for LFB */
2870 memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
2871 "cirrus-linear-io", s->vga.vram_size_mb
2872 * 1024 * 1024);
2873 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2874
2875 /* I/O handler for LFB */
2876 memory_region_init_io(&s->cirrus_linear_bitblt_io,
2877 &cirrus_linear_bitblt_io_ops,
2878 s,
2879 "cirrus-bitblt-mmio",
2880 0x400000);
2881 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2882
2883 /* I/O handler for memory-mapped I/O */
2884 memory_region_init_io(&s->cirrus_mmio_io, &cirrus_mmio_io_ops, s,
2885 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2886 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2887
2888 s->real_vram_size =
2889 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2890
2891 /* XXX: s->vga.vram_size must be a power of two */
2892 s->cirrus_addr_mask = s->real_vram_size - 1;
2893 s->linear_mmio_mask = s->real_vram_size - 256;
2894
2895 s->vga.get_bpp = cirrus_get_bpp;
2896 s->vga.get_offsets = cirrus_get_offsets;
2897 s->vga.get_resolution = cirrus_get_resolution;
2898 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2899 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2900
2901 qemu_register_reset(cirrus_reset, s);
2902 }
2903
2904 /***************************************
2905 *
2906 * ISA bus support
2907 *
2908 ***************************************/
2909
2910 static int vga_initfn(ISADevice *dev)
2911 {
2912 ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
2913 VGACommonState *s = &d->cirrus_vga.vga;
2914
2915 vga_common_init(s);
2916 cirrus_init_common(&d->cirrus_vga, CIRRUS_ID_CLGD5430, 0,
2917 isa_address_space(dev), isa_address_space_io(dev));
2918 s->con = graphic_console_init(DEVICE(dev), s->hw_ops, s);
2919 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2920 /* XXX ISA-LFB support */
2921 /* FIXME not qdev yet */
2922 return 0;
2923 }
2924
2925 static Property isa_cirrus_vga_properties[] = {
2926 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
2927 cirrus_vga.vga.vram_size_mb, 8),
2928 DEFINE_PROP_END_OF_LIST(),
2929 };
2930
2931 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
2932 {
2933 ISADeviceClass *k = ISA_DEVICE_CLASS(klass);
2934 DeviceClass *dc = DEVICE_CLASS(klass);
2935
2936 dc->vmsd = &vmstate_cirrus_vga;
2937 k->init = vga_initfn;
2938 dc->props = isa_cirrus_vga_properties;
2939 }
2940
2941 static const TypeInfo isa_cirrus_vga_info = {
2942 .name = TYPE_ISA_CIRRUS_VGA,
2943 .parent = TYPE_ISA_DEVICE,
2944 .instance_size = sizeof(ISACirrusVGAState),
2945 .class_init = isa_cirrus_vga_class_init,
2946 };
2947
2948 /***************************************
2949 *
2950 * PCI bus support
2951 *
2952 ***************************************/
2953
2954 static int pci_cirrus_vga_initfn(PCIDevice *dev)
2955 {
2956 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
2957 CirrusVGAState *s = &d->cirrus_vga;
2958 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2959 int16_t device_id = pc->device_id;
2960
2961 /* setup VGA */
2962 vga_common_init(&s->vga);
2963 cirrus_init_common(s, device_id, 1, pci_address_space(dev),
2964 pci_address_space_io(dev));
2965 s->vga.con = graphic_console_init(DEVICE(dev), s->vga.hw_ops, &s->vga);
2966
2967 /* setup PCI */
2968
2969 memory_region_init(&s->pci_bar, "cirrus-pci-bar0", 0x2000000);
2970
2971 /* XXX: add byte swapping apertures */
2972 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2973 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2974 &s->cirrus_linear_bitblt_io);
2975
2976 /* setup memory space */
2977 /* memory #0 LFB */
2978 /* memory #1 memory-mapped I/O */
2979 /* XXX: s->vga.vram_size must be a power of two */
2980 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
2981 if (device_id == CIRRUS_ID_CLGD5446) {
2982 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
2983 }
2984 return 0;
2985 }
2986
2987 static Property pci_vga_cirrus_properties[] = {
2988 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
2989 cirrus_vga.vga.vram_size_mb, 8),
2990 DEFINE_PROP_END_OF_LIST(),
2991 };
2992
2993 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
2994 {
2995 DeviceClass *dc = DEVICE_CLASS(klass);
2996 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2997
2998 k->no_hotplug = 1;
2999 k->init = pci_cirrus_vga_initfn;
3000 k->romfile = VGABIOS_CIRRUS_FILENAME;
3001 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3002 k->device_id = CIRRUS_ID_CLGD5446;
3003 k->class_id = PCI_CLASS_DISPLAY_VGA;
3004 dc->desc = "Cirrus CLGD 54xx VGA";
3005 dc->vmsd = &vmstate_pci_cirrus_vga;
3006 dc->props = pci_vga_cirrus_properties;
3007 }
3008
3009 static const TypeInfo cirrus_vga_info = {
3010 .name = "cirrus-vga",
3011 .parent = TYPE_PCI_DEVICE,
3012 .instance_size = sizeof(PCICirrusVGAState),
3013 .class_init = cirrus_vga_class_init,
3014 };
3015
3016 static void cirrus_vga_register_types(void)
3017 {
3018 type_register_static(&isa_cirrus_vga_info);
3019 type_register_static(&cirrus_vga_info);
3020 }
3021
3022 type_init(cirrus_vga_register_types)
AR7 emulation for QEMU