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hw/pxa2xx_timer: Explicitly mark fallthroughs
[qemu/pbrook.git] / hw / cirrus_vga.c
blob2a2c8dad628cf77f845301b0e43d082b154274e3
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.h"
30 #include "pci/pci.h"
31 #include "ui/console.h"
32 #include "vga_int.h"
33 #include "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 typedef struct ISACirrusVGAState {
254 ISADevice dev;
255 CirrusVGAState cirrus_vga;
256 } ISACirrusVGAState;
257
258 static uint8_t rop_to_index[256];
259
260 /***************************************
261 *
262 * prototypes.
263 *
264 ***************************************/
265
266
267 static void cirrus_bitblt_reset(CirrusVGAState *s);
268 static void cirrus_update_memory_access(CirrusVGAState *s);
269
270 /***************************************
271 *
272 * raster operations
273 *
274 ***************************************/
275
276 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
277 uint8_t *dst,const uint8_t *src,
278 int dstpitch,int srcpitch,
279 int bltwidth,int bltheight)
280 {
281 }
282
283 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
284 uint8_t *dst,
285 int dstpitch, int bltwidth,int bltheight)
286 {
287 }
288
289 #define ROP_NAME 0
290 #define ROP_FN(d, s) 0
291 #include "cirrus_vga_rop.h"
292
293 #define ROP_NAME src_and_dst
294 #define ROP_FN(d, s) (s) & (d)
295 #include "cirrus_vga_rop.h"
296
297 #define ROP_NAME src_and_notdst
298 #define ROP_FN(d, s) (s) & (~(d))
299 #include "cirrus_vga_rop.h"
300
301 #define ROP_NAME notdst
302 #define ROP_FN(d, s) ~(d)
303 #include "cirrus_vga_rop.h"
304
305 #define ROP_NAME src
306 #define ROP_FN(d, s) s
307 #include "cirrus_vga_rop.h"
308
309 #define ROP_NAME 1
310 #define ROP_FN(d, s) ~0
311 #include "cirrus_vga_rop.h"
312
313 #define ROP_NAME notsrc_and_dst
314 #define ROP_FN(d, s) (~(s)) & (d)
315 #include "cirrus_vga_rop.h"
316
317 #define ROP_NAME src_xor_dst
318 #define ROP_FN(d, s) (s) ^ (d)
319 #include "cirrus_vga_rop.h"
320
321 #define ROP_NAME src_or_dst
322 #define ROP_FN(d, s) (s) | (d)
323 #include "cirrus_vga_rop.h"
324
325 #define ROP_NAME notsrc_or_notdst
326 #define ROP_FN(d, s) (~(s)) | (~(d))
327 #include "cirrus_vga_rop.h"
328
329 #define ROP_NAME src_notxor_dst
330 #define ROP_FN(d, s) ~((s) ^ (d))
331 #include "cirrus_vga_rop.h"
332
333 #define ROP_NAME src_or_notdst
334 #define ROP_FN(d, s) (s) | (~(d))
335 #include "cirrus_vga_rop.h"
336
337 #define ROP_NAME notsrc
338 #define ROP_FN(d, s) (~(s))
339 #include "cirrus_vga_rop.h"
340
341 #define ROP_NAME notsrc_or_dst
342 #define ROP_FN(d, s) (~(s)) | (d)
343 #include "cirrus_vga_rop.h"
344
345 #define ROP_NAME notsrc_and_notdst
346 #define ROP_FN(d, s) (~(s)) & (~(d))
347 #include "cirrus_vga_rop.h"
348
349 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
350 cirrus_bitblt_rop_fwd_0,
351 cirrus_bitblt_rop_fwd_src_and_dst,
352 cirrus_bitblt_rop_nop,
353 cirrus_bitblt_rop_fwd_src_and_notdst,
354 cirrus_bitblt_rop_fwd_notdst,
355 cirrus_bitblt_rop_fwd_src,
356 cirrus_bitblt_rop_fwd_1,
357 cirrus_bitblt_rop_fwd_notsrc_and_dst,
358 cirrus_bitblt_rop_fwd_src_xor_dst,
359 cirrus_bitblt_rop_fwd_src_or_dst,
360 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
361 cirrus_bitblt_rop_fwd_src_notxor_dst,
362 cirrus_bitblt_rop_fwd_src_or_notdst,
363 cirrus_bitblt_rop_fwd_notsrc,
364 cirrus_bitblt_rop_fwd_notsrc_or_dst,
365 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
366 };
367
368 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
369 cirrus_bitblt_rop_bkwd_0,
370 cirrus_bitblt_rop_bkwd_src_and_dst,
371 cirrus_bitblt_rop_nop,
372 cirrus_bitblt_rop_bkwd_src_and_notdst,
373 cirrus_bitblt_rop_bkwd_notdst,
374 cirrus_bitblt_rop_bkwd_src,
375 cirrus_bitblt_rop_bkwd_1,
376 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
377 cirrus_bitblt_rop_bkwd_src_xor_dst,
378 cirrus_bitblt_rop_bkwd_src_or_dst,
379 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
380 cirrus_bitblt_rop_bkwd_src_notxor_dst,
381 cirrus_bitblt_rop_bkwd_src_or_notdst,
382 cirrus_bitblt_rop_bkwd_notsrc,
383 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
384 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
385 };
386
387 #define TRANSP_ROP(name) {\
388 name ## _8,\
389 name ## _16,\
390 }
391 #define TRANSP_NOP(func) {\
392 func,\
393 func,\
394 }
395
396 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
397 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
398 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
399 TRANSP_NOP(cirrus_bitblt_rop_nop),
400 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
401 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
402 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
403 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
404 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
405 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
406 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
407 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
408 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
409 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
410 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
411 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
412 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
413 };
414
415 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
416 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
417 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
418 TRANSP_NOP(cirrus_bitblt_rop_nop),
419 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
420 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
421 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
422 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
423 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
424 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
425 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
426 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
427 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
428 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
429 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
430 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
431 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
432 };
433
434 #define ROP2(name) {\
435 name ## _8,\
436 name ## _16,\
437 name ## _24,\
438 name ## _32,\
439 }
440
441 #define ROP_NOP2(func) {\
442 func,\
443 func,\
444 func,\
445 func,\
446 }
447
448 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
449 ROP2(cirrus_patternfill_0),
450 ROP2(cirrus_patternfill_src_and_dst),
451 ROP_NOP2(cirrus_bitblt_rop_nop),
452 ROP2(cirrus_patternfill_src_and_notdst),
453 ROP2(cirrus_patternfill_notdst),
454 ROP2(cirrus_patternfill_src),
455 ROP2(cirrus_patternfill_1),
456 ROP2(cirrus_patternfill_notsrc_and_dst),
457 ROP2(cirrus_patternfill_src_xor_dst),
458 ROP2(cirrus_patternfill_src_or_dst),
459 ROP2(cirrus_patternfill_notsrc_or_notdst),
460 ROP2(cirrus_patternfill_src_notxor_dst),
461 ROP2(cirrus_patternfill_src_or_notdst),
462 ROP2(cirrus_patternfill_notsrc),
463 ROP2(cirrus_patternfill_notsrc_or_dst),
464 ROP2(cirrus_patternfill_notsrc_and_notdst),
465 };
466
467 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
468 ROP2(cirrus_colorexpand_transp_0),
469 ROP2(cirrus_colorexpand_transp_src_and_dst),
470 ROP_NOP2(cirrus_bitblt_rop_nop),
471 ROP2(cirrus_colorexpand_transp_src_and_notdst),
472 ROP2(cirrus_colorexpand_transp_notdst),
473 ROP2(cirrus_colorexpand_transp_src),
474 ROP2(cirrus_colorexpand_transp_1),
475 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
476 ROP2(cirrus_colorexpand_transp_src_xor_dst),
477 ROP2(cirrus_colorexpand_transp_src_or_dst),
478 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
479 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
480 ROP2(cirrus_colorexpand_transp_src_or_notdst),
481 ROP2(cirrus_colorexpand_transp_notsrc),
482 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
483 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
484 };
485
486 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
487 ROP2(cirrus_colorexpand_0),
488 ROP2(cirrus_colorexpand_src_and_dst),
489 ROP_NOP2(cirrus_bitblt_rop_nop),
490 ROP2(cirrus_colorexpand_src_and_notdst),
491 ROP2(cirrus_colorexpand_notdst),
492 ROP2(cirrus_colorexpand_src),
493 ROP2(cirrus_colorexpand_1),
494 ROP2(cirrus_colorexpand_notsrc_and_dst),
495 ROP2(cirrus_colorexpand_src_xor_dst),
496 ROP2(cirrus_colorexpand_src_or_dst),
497 ROP2(cirrus_colorexpand_notsrc_or_notdst),
498 ROP2(cirrus_colorexpand_src_notxor_dst),
499 ROP2(cirrus_colorexpand_src_or_notdst),
500 ROP2(cirrus_colorexpand_notsrc),
501 ROP2(cirrus_colorexpand_notsrc_or_dst),
502 ROP2(cirrus_colorexpand_notsrc_and_notdst),
503 };
504
505 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
506 ROP2(cirrus_colorexpand_pattern_transp_0),
507 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
508 ROP_NOP2(cirrus_bitblt_rop_nop),
509 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
510 ROP2(cirrus_colorexpand_pattern_transp_notdst),
511 ROP2(cirrus_colorexpand_pattern_transp_src),
512 ROP2(cirrus_colorexpand_pattern_transp_1),
513 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
514 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
515 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
516 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
517 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
518 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
519 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
520 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
521 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
522 };
523
524 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
525 ROP2(cirrus_colorexpand_pattern_0),
526 ROP2(cirrus_colorexpand_pattern_src_and_dst),
527 ROP_NOP2(cirrus_bitblt_rop_nop),
528 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
529 ROP2(cirrus_colorexpand_pattern_notdst),
530 ROP2(cirrus_colorexpand_pattern_src),
531 ROP2(cirrus_colorexpand_pattern_1),
532 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
533 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
534 ROP2(cirrus_colorexpand_pattern_src_or_dst),
535 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
536 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
537 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
538 ROP2(cirrus_colorexpand_pattern_notsrc),
539 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
540 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
541 };
542
543 static const cirrus_fill_t cirrus_fill[16][4] = {
544 ROP2(cirrus_fill_0),
545 ROP2(cirrus_fill_src_and_dst),
546 ROP_NOP2(cirrus_bitblt_fill_nop),
547 ROP2(cirrus_fill_src_and_notdst),
548 ROP2(cirrus_fill_notdst),
549 ROP2(cirrus_fill_src),
550 ROP2(cirrus_fill_1),
551 ROP2(cirrus_fill_notsrc_and_dst),
552 ROP2(cirrus_fill_src_xor_dst),
553 ROP2(cirrus_fill_src_or_dst),
554 ROP2(cirrus_fill_notsrc_or_notdst),
555 ROP2(cirrus_fill_src_notxor_dst),
556 ROP2(cirrus_fill_src_or_notdst),
557 ROP2(cirrus_fill_notsrc),
558 ROP2(cirrus_fill_notsrc_or_dst),
559 ROP2(cirrus_fill_notsrc_and_notdst),
560 };
561
562 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
563 {
564 unsigned int color;
565 switch (s->cirrus_blt_pixelwidth) {
566 case 1:
567 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
568 break;
569 case 2:
570 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
571 s->cirrus_blt_fgcol = le16_to_cpu(color);
572 break;
573 case 3:
574 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
575 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
576 break;
577 default:
578 case 4:
579 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
580 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
581 s->cirrus_blt_fgcol = le32_to_cpu(color);
582 break;
583 }
584 }
585
586 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
587 {
588 unsigned int color;
589 switch (s->cirrus_blt_pixelwidth) {
590 case 1:
591 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
592 break;
593 case 2:
594 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
595 s->cirrus_blt_bgcol = le16_to_cpu(color);
596 break;
597 case 3:
598 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
599 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
600 break;
601 default:
602 case 4:
603 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
604 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
605 s->cirrus_blt_bgcol = le32_to_cpu(color);
606 break;
607 }
608 }
609
610 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
611 int off_pitch, int bytesperline,
612 int lines)
613 {
614 int y;
615 int off_cur;
616 int off_cur_end;
617
618 for (y = 0; y < lines; y++) {
619 off_cur = off_begin;
620 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
621 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
622 off_begin += off_pitch;
623 }
624 }
625
626 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
627 const uint8_t * src)
628 {
629 uint8_t *dst;
630
631 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
632
633 if (BLTUNSAFE(s))
634 return 0;
635
636 (*s->cirrus_rop) (s, dst, src,
637 s->cirrus_blt_dstpitch, 0,
638 s->cirrus_blt_width, s->cirrus_blt_height);
639 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
640 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
641 s->cirrus_blt_height);
642 return 1;
643 }
644
645 /* fill */
646
647 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
648 {
649 cirrus_fill_t rop_func;
650
651 if (BLTUNSAFE(s))
652 return 0;
653 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
654 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
655 s->cirrus_blt_dstpitch,
656 s->cirrus_blt_width, s->cirrus_blt_height);
657 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
658 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
659 s->cirrus_blt_height);
660 cirrus_bitblt_reset(s);
661 return 1;
662 }
663
664 /***************************************
665 *
666 * bitblt (video-to-video)
667 *
668 ***************************************/
669
670 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
671 {
672 return cirrus_bitblt_common_patterncopy(s,
673 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
674 s->cirrus_addr_mask));
675 }
676
677 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
678 {
679 int sx = 0, sy = 0;
680 int dx = 0, dy = 0;
681 int depth = 0;
682 int notify = 0;
683
684 /* make sure to only copy if it's a plain copy ROP */
685 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
686 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
687
688 int width, height;
689
690 depth = s->vga.get_bpp(&s->vga) / 8;
691 s->vga.get_resolution(&s->vga, &width, &height);
692
693 /* extra x, y */
694 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
695 sy = (src / ABS(s->cirrus_blt_srcpitch));
696 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
697 dy = (dst / ABS(s->cirrus_blt_dstpitch));
698
699 /* normalize width */
700 w /= depth;
701
702 /* if we're doing a backward copy, we have to adjust
703 our x/y to be the upper left corner (instead of the lower
704 right corner) */
705 if (s->cirrus_blt_dstpitch < 0) {
706 sx -= (s->cirrus_blt_width / depth) - 1;
707 dx -= (s->cirrus_blt_width / depth) - 1;
708 sy -= s->cirrus_blt_height - 1;
709 dy -= s->cirrus_blt_height - 1;
710 }
711
712 /* are we in the visible portion of memory? */
713 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
714 (sx + w) <= width && (sy + h) <= height &&
715 (dx + w) <= width && (dy + h) <= height) {
716 notify = 1;
717 }
718 }
719
720 /* we have to flush all pending changes so that the copy
721 is generated at the appropriate moment in time */
722 if (notify)
723 vga_hw_update();
724
725 (*s->cirrus_rop) (s, s->vga.vram_ptr +
726 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
727 s->vga.vram_ptr +
728 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
729 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
730 s->cirrus_blt_width, s->cirrus_blt_height);
731
732 if (notify)
733 qemu_console_copy(s->vga.ds,
734 sx, sy, dx, dy,
735 s->cirrus_blt_width / depth,
736 s->cirrus_blt_height);
737
738 /* we don't have to notify the display that this portion has
739 changed since qemu_console_copy implies this */
740
741 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
742 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
743 s->cirrus_blt_height);
744 }
745
746 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
747 {
748 if (BLTUNSAFE(s))
749 return 0;
750
751 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
752 s->cirrus_blt_srcaddr - s->vga.start_addr,
753 s->cirrus_blt_width, s->cirrus_blt_height);
754
755 return 1;
756 }
757
758 /***************************************
759 *
760 * bitblt (cpu-to-video)
761 *
762 ***************************************/
763
764 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
765 {
766 int copy_count;
767 uint8_t *end_ptr;
768
769 if (s->cirrus_srccounter > 0) {
770 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
771 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
772 the_end:
773 s->cirrus_srccounter = 0;
774 cirrus_bitblt_reset(s);
775 } else {
776 /* at least one scan line */
777 do {
778 (*s->cirrus_rop)(s, s->vga.vram_ptr +
779 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
780 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
781 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
782 s->cirrus_blt_width, 1);
783 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
784 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
785 if (s->cirrus_srccounter <= 0)
786 goto the_end;
787 /* more bytes than needed can be transferred because of
788 word alignment, so we keep them for the next line */
789 /* XXX: keep alignment to speed up transfer */
790 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
791 copy_count = s->cirrus_srcptr_end - end_ptr;
792 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
793 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
794 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
795 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
796 }
797 }
798 }
799
800 /***************************************
801 *
802 * bitblt wrapper
803 *
804 ***************************************/
805
806 static void cirrus_bitblt_reset(CirrusVGAState * s)
807 {
808 int need_update;
809
810 s->vga.gr[0x31] &=
811 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
812 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
813 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
814 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
815 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
816 s->cirrus_srccounter = 0;
817 if (!need_update)
818 return;
819 cirrus_update_memory_access(s);
820 }
821
822 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
823 {
824 int w;
825
826 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
827 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
828 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
829
830 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
831 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
832 s->cirrus_blt_srcpitch = 8;
833 } else {
834 /* XXX: check for 24 bpp */
835 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
836 }
837 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
838 } else {
839 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
840 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
841 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
842 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
843 else
844 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
845 } else {
846 /* always align input size to 32 bits */
847 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
848 }
849 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
850 }
851 s->cirrus_srcptr = s->cirrus_bltbuf;
852 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
853 cirrus_update_memory_access(s);
854 return 1;
855 }
856
857 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
858 {
859 /* XXX */
860 #ifdef DEBUG_BITBLT
861 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
862 #endif
863 return 0;
864 }
865
866 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
867 {
868 int ret;
869
870 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
871 ret = cirrus_bitblt_videotovideo_patterncopy(s);
872 } else {
873 ret = cirrus_bitblt_videotovideo_copy(s);
874 }
875 if (ret)
876 cirrus_bitblt_reset(s);
877 return ret;
878 }
879
880 static void cirrus_bitblt_start(CirrusVGAState * s)
881 {
882 uint8_t blt_rop;
883
884 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
885
886 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
887 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
888 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
889 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
890 s->cirrus_blt_dstaddr =
891 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
892 s->cirrus_blt_srcaddr =
893 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
894 s->cirrus_blt_mode = s->vga.gr[0x30];
895 s->cirrus_blt_modeext = s->vga.gr[0x33];
896 blt_rop = s->vga.gr[0x32];
897
898 #ifdef DEBUG_BITBLT
899 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",
900 blt_rop,
901 s->cirrus_blt_mode,
902 s->cirrus_blt_modeext,
903 s->cirrus_blt_width,
904 s->cirrus_blt_height,
905 s->cirrus_blt_dstpitch,
906 s->cirrus_blt_srcpitch,
907 s->cirrus_blt_dstaddr,
908 s->cirrus_blt_srcaddr,
909 s->vga.gr[0x2f]);
910 #endif
911
912 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
913 case CIRRUS_BLTMODE_PIXELWIDTH8:
914 s->cirrus_blt_pixelwidth = 1;
915 break;
916 case CIRRUS_BLTMODE_PIXELWIDTH16:
917 s->cirrus_blt_pixelwidth = 2;
918 break;
919 case CIRRUS_BLTMODE_PIXELWIDTH24:
920 s->cirrus_blt_pixelwidth = 3;
921 break;
922 case CIRRUS_BLTMODE_PIXELWIDTH32:
923 s->cirrus_blt_pixelwidth = 4;
924 break;
925 default:
926 #ifdef DEBUG_BITBLT
927 printf("cirrus: bitblt - pixel width is unknown\n");
928 #endif
929 goto bitblt_ignore;
930 }
931 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
932
933 if ((s->
934 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
935 CIRRUS_BLTMODE_MEMSYSDEST))
936 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
937 #ifdef DEBUG_BITBLT
938 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
939 #endif
940 goto bitblt_ignore;
941 }
942
943 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
944 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
945 CIRRUS_BLTMODE_TRANSPARENTCOMP |
946 CIRRUS_BLTMODE_PATTERNCOPY |
947 CIRRUS_BLTMODE_COLOREXPAND)) ==
948 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
949 cirrus_bitblt_fgcol(s);
950 cirrus_bitblt_solidfill(s, blt_rop);
951 } else {
952 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
953 CIRRUS_BLTMODE_PATTERNCOPY)) ==
954 CIRRUS_BLTMODE_COLOREXPAND) {
955
956 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
957 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
958 cirrus_bitblt_bgcol(s);
959 else
960 cirrus_bitblt_fgcol(s);
961 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
962 } else {
963 cirrus_bitblt_fgcol(s);
964 cirrus_bitblt_bgcol(s);
965 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
966 }
967 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
968 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
969 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
970 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
971 cirrus_bitblt_bgcol(s);
972 else
973 cirrus_bitblt_fgcol(s);
974 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
975 } else {
976 cirrus_bitblt_fgcol(s);
977 cirrus_bitblt_bgcol(s);
978 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
979 }
980 } else {
981 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
982 }
983 } else {
984 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
985 if (s->cirrus_blt_pixelwidth > 2) {
986 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
987 goto bitblt_ignore;
988 }
989 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
990 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
991 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
992 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
993 } else {
994 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
995 }
996 } else {
997 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
998 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
999 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1000 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1001 } else {
1002 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1003 }
1004 }
1005 }
1006 // setup bitblt engine.
1007 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1008 if (!cirrus_bitblt_cputovideo(s))
1009 goto bitblt_ignore;
1010 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1011 if (!cirrus_bitblt_videotocpu(s))
1012 goto bitblt_ignore;
1013 } else {
1014 if (!cirrus_bitblt_videotovideo(s))
1015 goto bitblt_ignore;
1016 }
1017 }
1018 return;
1019 bitblt_ignore:;
1020 cirrus_bitblt_reset(s);
1021 }
1022
1023 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1024 {
1025 unsigned old_value;
1026
1027 old_value = s->vga.gr[0x31];
1028 s->vga.gr[0x31] = reg_value;
1029
1030 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1031 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1032 cirrus_bitblt_reset(s);
1033 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1034 ((reg_value & CIRRUS_BLT_START) != 0)) {
1035 cirrus_bitblt_start(s);
1036 }
1037 }
1038
1039
1040 /***************************************
1041 *
1042 * basic parameters
1043 *
1044 ***************************************/
1045
1046 static void cirrus_get_offsets(VGACommonState *s1,
1047 uint32_t *pline_offset,
1048 uint32_t *pstart_addr,
1049 uint32_t *pline_compare)
1050 {
1051 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1052 uint32_t start_addr, line_offset, line_compare;
1053
1054 line_offset = s->vga.cr[0x13]
1055 | ((s->vga.cr[0x1b] & 0x10) << 4);
1056 line_offset <<= 3;
1057 *pline_offset = line_offset;
1058
1059 start_addr = (s->vga.cr[0x0c] << 8)
1060 | s->vga.cr[0x0d]
1061 | ((s->vga.cr[0x1b] & 0x01) << 16)
1062 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1063 | ((s->vga.cr[0x1d] & 0x80) << 12);
1064 *pstart_addr = start_addr;
1065
1066 line_compare = s->vga.cr[0x18] |
1067 ((s->vga.cr[0x07] & 0x10) << 4) |
1068 ((s->vga.cr[0x09] & 0x40) << 3);
1069 *pline_compare = line_compare;
1070 }
1071
1072 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1073 {
1074 uint32_t ret = 16;
1075
1076 switch (s->cirrus_hidden_dac_data & 0xf) {
1077 case 0:
1078 ret = 15;
1079 break; /* Sierra HiColor */
1080 case 1:
1081 ret = 16;
1082 break; /* XGA HiColor */
1083 default:
1084 #ifdef DEBUG_CIRRUS
1085 printf("cirrus: invalid DAC value %x in 16bpp\n",
1086 (s->cirrus_hidden_dac_data & 0xf));
1087 #endif
1088 ret = 15; /* XXX */
1089 break;
1090 }
1091 return ret;
1092 }
1093
1094 static int cirrus_get_bpp(VGACommonState *s1)
1095 {
1096 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1097 uint32_t ret = 8;
1098
1099 if ((s->vga.sr[0x07] & 0x01) != 0) {
1100 /* Cirrus SVGA */
1101 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1102 case CIRRUS_SR7_BPP_8:
1103 ret = 8;
1104 break;
1105 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1106 ret = cirrus_get_bpp16_depth(s);
1107 break;
1108 case CIRRUS_SR7_BPP_24:
1109 ret = 24;
1110 break;
1111 case CIRRUS_SR7_BPP_16:
1112 ret = cirrus_get_bpp16_depth(s);
1113 break;
1114 case CIRRUS_SR7_BPP_32:
1115 ret = 32;
1116 break;
1117 default:
1118 #ifdef DEBUG_CIRRUS
1119 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1120 #endif
1121 ret = 8;
1122 break;
1123 }
1124 } else {
1125 /* VGA */
1126 ret = 0;
1127 }
1128
1129 return ret;
1130 }
1131
1132 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1133 {
1134 int width, height;
1135
1136 width = (s->cr[0x01] + 1) * 8;
1137 height = s->cr[0x12] |
1138 ((s->cr[0x07] & 0x02) << 7) |
1139 ((s->cr[0x07] & 0x40) << 3);
1140 height = (height + 1);
1141 /* interlace support */
1142 if (s->cr[0x1a] & 0x01)
1143 height = height * 2;
1144 *pwidth = width;
1145 *pheight = height;
1146 }
1147
1148 /***************************************
1149 *
1150 * bank memory
1151 *
1152 ***************************************/
1153
1154 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1155 {
1156 unsigned offset;
1157 unsigned limit;
1158
1159 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1160 offset = s->vga.gr[0x09 + bank_index];
1161 else /* single bank */
1162 offset = s->vga.gr[0x09];
1163
1164 if ((s->vga.gr[0x0b] & 0x20) != 0)
1165 offset <<= 14;
1166 else
1167 offset <<= 12;
1168
1169 if (s->real_vram_size <= offset)
1170 limit = 0;
1171 else
1172 limit = s->real_vram_size - offset;
1173
1174 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1175 if (limit > 0x8000) {
1176 offset += 0x8000;
1177 limit -= 0x8000;
1178 } else {
1179 limit = 0;
1180 }
1181 }
1182
1183 if (limit > 0) {
1184 s->cirrus_bank_base[bank_index] = offset;
1185 s->cirrus_bank_limit[bank_index] = limit;
1186 } else {
1187 s->cirrus_bank_base[bank_index] = 0;
1188 s->cirrus_bank_limit[bank_index] = 0;
1189 }
1190 }
1191
1192 /***************************************
1193 *
1194 * I/O access between 0x3c4-0x3c5
1195 *
1196 ***************************************/
1197
1198 static int cirrus_vga_read_sr(CirrusVGAState * s)
1199 {
1200 switch (s->vga.sr_index) {
1201 case 0x00: // Standard VGA
1202 case 0x01: // Standard VGA
1203 case 0x02: // Standard VGA
1204 case 0x03: // Standard VGA
1205 case 0x04: // Standard VGA
1206 return s->vga.sr[s->vga.sr_index];
1207 case 0x06: // Unlock Cirrus extensions
1208 return s->vga.sr[s->vga.sr_index];
1209 case 0x10:
1210 case 0x30:
1211 case 0x50:
1212 case 0x70: // Graphics Cursor X
1213 case 0x90:
1214 case 0xb0:
1215 case 0xd0:
1216 case 0xf0: // Graphics Cursor X
1217 return s->vga.sr[0x10];
1218 case 0x11:
1219 case 0x31:
1220 case 0x51:
1221 case 0x71: // Graphics Cursor Y
1222 case 0x91:
1223 case 0xb1:
1224 case 0xd1:
1225 case 0xf1: // Graphics Cursor Y
1226 return s->vga.sr[0x11];
1227 case 0x05: // ???
1228 case 0x07: // Extended Sequencer Mode
1229 case 0x08: // EEPROM Control
1230 case 0x09: // Scratch Register 0
1231 case 0x0a: // Scratch Register 1
1232 case 0x0b: // VCLK 0
1233 case 0x0c: // VCLK 1
1234 case 0x0d: // VCLK 2
1235 case 0x0e: // VCLK 3
1236 case 0x0f: // DRAM Control
1237 case 0x12: // Graphics Cursor Attribute
1238 case 0x13: // Graphics Cursor Pattern Address
1239 case 0x14: // Scratch Register 2
1240 case 0x15: // Scratch Register 3
1241 case 0x16: // Performance Tuning Register
1242 case 0x17: // Configuration Readback and Extended Control
1243 case 0x18: // Signature Generator Control
1244 case 0x19: // Signal Generator Result
1245 case 0x1a: // Signal Generator Result
1246 case 0x1b: // VCLK 0 Denominator & Post
1247 case 0x1c: // VCLK 1 Denominator & Post
1248 case 0x1d: // VCLK 2 Denominator & Post
1249 case 0x1e: // VCLK 3 Denominator & Post
1250 case 0x1f: // BIOS Write Enable and MCLK select
1251 #ifdef DEBUG_CIRRUS
1252 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1253 #endif
1254 return s->vga.sr[s->vga.sr_index];
1255 default:
1256 #ifdef DEBUG_CIRRUS
1257 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1258 #endif
1259 return 0xff;
1260 break;
1261 }
1262 }
1263
1264 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1265 {
1266 switch (s->vga.sr_index) {
1267 case 0x00: // Standard VGA
1268 case 0x01: // Standard VGA
1269 case 0x02: // Standard VGA
1270 case 0x03: // Standard VGA
1271 case 0x04: // Standard VGA
1272 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1273 if (s->vga.sr_index == 1)
1274 s->vga.update_retrace_info(&s->vga);
1275 break;
1276 case 0x06: // Unlock Cirrus extensions
1277 val &= 0x17;
1278 if (val == 0x12) {
1279 s->vga.sr[s->vga.sr_index] = 0x12;
1280 } else {
1281 s->vga.sr[s->vga.sr_index] = 0x0f;
1282 }
1283 break;
1284 case 0x10:
1285 case 0x30:
1286 case 0x50:
1287 case 0x70: // Graphics Cursor X
1288 case 0x90:
1289 case 0xb0:
1290 case 0xd0:
1291 case 0xf0: // Graphics Cursor X
1292 s->vga.sr[0x10] = val;
1293 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1294 break;
1295 case 0x11:
1296 case 0x31:
1297 case 0x51:
1298 case 0x71: // Graphics Cursor Y
1299 case 0x91:
1300 case 0xb1:
1301 case 0xd1:
1302 case 0xf1: // Graphics Cursor Y
1303 s->vga.sr[0x11] = val;
1304 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1305 break;
1306 case 0x07: // Extended Sequencer Mode
1307 cirrus_update_memory_access(s);
1308 case 0x08: // EEPROM Control
1309 case 0x09: // Scratch Register 0
1310 case 0x0a: // Scratch Register 1
1311 case 0x0b: // VCLK 0
1312 case 0x0c: // VCLK 1
1313 case 0x0d: // VCLK 2
1314 case 0x0e: // VCLK 3
1315 case 0x0f: // DRAM Control
1316 case 0x12: // Graphics Cursor Attribute
1317 case 0x13: // Graphics Cursor Pattern Address
1318 case 0x14: // Scratch Register 2
1319 case 0x15: // Scratch Register 3
1320 case 0x16: // Performance Tuning Register
1321 case 0x18: // Signature Generator Control
1322 case 0x19: // Signature Generator Result
1323 case 0x1a: // Signature Generator Result
1324 case 0x1b: // VCLK 0 Denominator & Post
1325 case 0x1c: // VCLK 1 Denominator & Post
1326 case 0x1d: // VCLK 2 Denominator & Post
1327 case 0x1e: // VCLK 3 Denominator & Post
1328 case 0x1f: // BIOS Write Enable and MCLK select
1329 s->vga.sr[s->vga.sr_index] = val;
1330 #ifdef DEBUG_CIRRUS
1331 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1332 s->vga.sr_index, val);
1333 #endif
1334 break;
1335 case 0x17: // Configuration Readback and Extended Control
1336 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1337 | (val & 0xc7);
1338 cirrus_update_memory_access(s);
1339 break;
1340 default:
1341 #ifdef DEBUG_CIRRUS
1342 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1343 s->vga.sr_index, val);
1344 #endif
1345 break;
1346 }
1347 }
1348
1349 /***************************************
1350 *
1351 * I/O access at 0x3c6
1352 *
1353 ***************************************/
1354
1355 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1356 {
1357 if (++s->cirrus_hidden_dac_lockindex == 5) {
1358 s->cirrus_hidden_dac_lockindex = 0;
1359 return s->cirrus_hidden_dac_data;
1360 }
1361 return 0xff;
1362 }
1363
1364 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1365 {
1366 if (s->cirrus_hidden_dac_lockindex == 4) {
1367 s->cirrus_hidden_dac_data = reg_value;
1368 #if defined(DEBUG_CIRRUS)
1369 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1370 #endif
1371 }
1372 s->cirrus_hidden_dac_lockindex = 0;
1373 }
1374
1375 /***************************************
1376 *
1377 * I/O access at 0x3c9
1378 *
1379 ***************************************/
1380
1381 static int cirrus_vga_read_palette(CirrusVGAState * s)
1382 {
1383 int val;
1384
1385 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1386 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1387 s->vga.dac_sub_index];
1388 } else {
1389 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1390 }
1391 if (++s->vga.dac_sub_index == 3) {
1392 s->vga.dac_sub_index = 0;
1393 s->vga.dac_read_index++;
1394 }
1395 return val;
1396 }
1397
1398 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1399 {
1400 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1401 if (++s->vga.dac_sub_index == 3) {
1402 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1403 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1404 s->vga.dac_cache, 3);
1405 } else {
1406 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1407 }
1408 /* XXX update cursor */
1409 s->vga.dac_sub_index = 0;
1410 s->vga.dac_write_index++;
1411 }
1412 }
1413
1414 /***************************************
1415 *
1416 * I/O access between 0x3ce-0x3cf
1417 *
1418 ***************************************/
1419
1420 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1421 {
1422 switch (reg_index) {
1423 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1424 return s->cirrus_shadow_gr0;
1425 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1426 return s->cirrus_shadow_gr1;
1427 case 0x02: // Standard VGA
1428 case 0x03: // Standard VGA
1429 case 0x04: // Standard VGA
1430 case 0x06: // Standard VGA
1431 case 0x07: // Standard VGA
1432 case 0x08: // Standard VGA
1433 return s->vga.gr[s->vga.gr_index];
1434 case 0x05: // Standard VGA, Cirrus extended mode
1435 default:
1436 break;
1437 }
1438
1439 if (reg_index < 0x3a) {
1440 return s->vga.gr[reg_index];
1441 } else {
1442 #ifdef DEBUG_CIRRUS
1443 printf("cirrus: inport gr_index %02x\n", reg_index);
1444 #endif
1445 return 0xff;
1446 }
1447 }
1448
1449 static void
1450 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1451 {
1452 #if defined(DEBUG_BITBLT) && 0
1453 printf("gr%02x: %02x\n", reg_index, reg_value);
1454 #endif
1455 switch (reg_index) {
1456 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1457 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1458 s->cirrus_shadow_gr0 = reg_value;
1459 break;
1460 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1461 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1462 s->cirrus_shadow_gr1 = reg_value;
1463 break;
1464 case 0x02: // Standard VGA
1465 case 0x03: // Standard VGA
1466 case 0x04: // Standard VGA
1467 case 0x06: // Standard VGA
1468 case 0x07: // Standard VGA
1469 case 0x08: // Standard VGA
1470 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1471 break;
1472 case 0x05: // Standard VGA, Cirrus extended mode
1473 s->vga.gr[reg_index] = reg_value & 0x7f;
1474 cirrus_update_memory_access(s);
1475 break;
1476 case 0x09: // bank offset #0
1477 case 0x0A: // bank offset #1
1478 s->vga.gr[reg_index] = reg_value;
1479 cirrus_update_bank_ptr(s, 0);
1480 cirrus_update_bank_ptr(s, 1);
1481 cirrus_update_memory_access(s);
1482 break;
1483 case 0x0B:
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 0x10: // BGCOLOR 0x0000ff00
1490 case 0x11: // FGCOLOR 0x0000ff00
1491 case 0x12: // BGCOLOR 0x00ff0000
1492 case 0x13: // FGCOLOR 0x00ff0000
1493 case 0x14: // BGCOLOR 0xff000000
1494 case 0x15: // FGCOLOR 0xff000000
1495 case 0x20: // BLT WIDTH 0x0000ff
1496 case 0x22: // BLT HEIGHT 0x0000ff
1497 case 0x24: // BLT DEST PITCH 0x0000ff
1498 case 0x26: // BLT SRC PITCH 0x0000ff
1499 case 0x28: // BLT DEST ADDR 0x0000ff
1500 case 0x29: // BLT DEST ADDR 0x00ff00
1501 case 0x2c: // BLT SRC ADDR 0x0000ff
1502 case 0x2d: // BLT SRC ADDR 0x00ff00
1503 case 0x2f: // BLT WRITEMASK
1504 case 0x30: // BLT MODE
1505 case 0x32: // RASTER OP
1506 case 0x33: // BLT MODEEXT
1507 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1508 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1509 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1510 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1511 s->vga.gr[reg_index] = reg_value;
1512 break;
1513 case 0x21: // BLT WIDTH 0x001f00
1514 case 0x23: // BLT HEIGHT 0x001f00
1515 case 0x25: // BLT DEST PITCH 0x001f00
1516 case 0x27: // BLT SRC PITCH 0x001f00
1517 s->vga.gr[reg_index] = reg_value & 0x1f;
1518 break;
1519 case 0x2a: // BLT DEST ADDR 0x3f0000
1520 s->vga.gr[reg_index] = reg_value & 0x3f;
1521 /* if auto start mode, starts bit blt now */
1522 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1523 cirrus_bitblt_start(s);
1524 }
1525 break;
1526 case 0x2e: // BLT SRC ADDR 0x3f0000
1527 s->vga.gr[reg_index] = reg_value & 0x3f;
1528 break;
1529 case 0x31: // BLT STATUS/START
1530 cirrus_write_bitblt(s, reg_value);
1531 break;
1532 default:
1533 #ifdef DEBUG_CIRRUS
1534 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1535 reg_value);
1536 #endif
1537 break;
1538 }
1539 }
1540
1541 /***************************************
1542 *
1543 * I/O access between 0x3d4-0x3d5
1544 *
1545 ***************************************/
1546
1547 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1548 {
1549 switch (reg_index) {
1550 case 0x00: // Standard VGA
1551 case 0x01: // Standard VGA
1552 case 0x02: // Standard VGA
1553 case 0x03: // Standard VGA
1554 case 0x04: // Standard VGA
1555 case 0x05: // Standard VGA
1556 case 0x06: // Standard VGA
1557 case 0x07: // Standard VGA
1558 case 0x08: // Standard VGA
1559 case 0x09: // Standard VGA
1560 case 0x0a: // Standard VGA
1561 case 0x0b: // Standard VGA
1562 case 0x0c: // Standard VGA
1563 case 0x0d: // Standard VGA
1564 case 0x0e: // Standard VGA
1565 case 0x0f: // Standard VGA
1566 case 0x10: // Standard VGA
1567 case 0x11: // Standard VGA
1568 case 0x12: // Standard VGA
1569 case 0x13: // Standard VGA
1570 case 0x14: // Standard VGA
1571 case 0x15: // Standard VGA
1572 case 0x16: // Standard VGA
1573 case 0x17: // Standard VGA
1574 case 0x18: // Standard VGA
1575 return s->vga.cr[s->vga.cr_index];
1576 case 0x24: // Attribute Controller Toggle Readback (R)
1577 return (s->vga.ar_flip_flop << 7);
1578 case 0x19: // Interlace End
1579 case 0x1a: // Miscellaneous Control
1580 case 0x1b: // Extended Display Control
1581 case 0x1c: // Sync Adjust and Genlock
1582 case 0x1d: // Overlay Extended Control
1583 case 0x22: // Graphics Data Latches Readback (R)
1584 case 0x25: // Part Status
1585 case 0x27: // Part ID (R)
1586 return s->vga.cr[s->vga.cr_index];
1587 case 0x26: // Attribute Controller Index Readback (R)
1588 return s->vga.ar_index & 0x3f;
1589 break;
1590 default:
1591 #ifdef DEBUG_CIRRUS
1592 printf("cirrus: inport cr_index %02x\n", reg_index);
1593 #endif
1594 return 0xff;
1595 }
1596 }
1597
1598 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1599 {
1600 switch (s->vga.cr_index) {
1601 case 0x00: // Standard VGA
1602 case 0x01: // Standard VGA
1603 case 0x02: // Standard VGA
1604 case 0x03: // Standard VGA
1605 case 0x04: // Standard VGA
1606 case 0x05: // Standard VGA
1607 case 0x06: // Standard VGA
1608 case 0x07: // Standard VGA
1609 case 0x08: // Standard VGA
1610 case 0x09: // Standard VGA
1611 case 0x0a: // Standard VGA
1612 case 0x0b: // Standard VGA
1613 case 0x0c: // Standard VGA
1614 case 0x0d: // Standard VGA
1615 case 0x0e: // Standard VGA
1616 case 0x0f: // Standard VGA
1617 case 0x10: // Standard VGA
1618 case 0x11: // Standard VGA
1619 case 0x12: // Standard VGA
1620 case 0x13: // Standard VGA
1621 case 0x14: // Standard VGA
1622 case 0x15: // Standard VGA
1623 case 0x16: // Standard VGA
1624 case 0x17: // Standard VGA
1625 case 0x18: // Standard VGA
1626 /* handle CR0-7 protection */
1627 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1628 /* can always write bit 4 of CR7 */
1629 if (s->vga.cr_index == 7)
1630 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1631 return;
1632 }
1633 s->vga.cr[s->vga.cr_index] = reg_value;
1634 switch(s->vga.cr_index) {
1635 case 0x00:
1636 case 0x04:
1637 case 0x05:
1638 case 0x06:
1639 case 0x07:
1640 case 0x11:
1641 case 0x17:
1642 s->vga.update_retrace_info(&s->vga);
1643 break;
1644 }
1645 break;
1646 case 0x19: // Interlace End
1647 case 0x1a: // Miscellaneous Control
1648 case 0x1b: // Extended Display Control
1649 case 0x1c: // Sync Adjust and Genlock
1650 case 0x1d: // Overlay Extended Control
1651 s->vga.cr[s->vga.cr_index] = reg_value;
1652 #ifdef DEBUG_CIRRUS
1653 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1654 s->vga.cr_index, reg_value);
1655 #endif
1656 break;
1657 case 0x22: // Graphics Data Latches Readback (R)
1658 case 0x24: // Attribute Controller Toggle Readback (R)
1659 case 0x26: // Attribute Controller Index Readback (R)
1660 case 0x27: // Part ID (R)
1661 break;
1662 case 0x25: // Part Status
1663 default:
1664 #ifdef DEBUG_CIRRUS
1665 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1666 s->vga.cr_index, reg_value);
1667 #endif
1668 break;
1669 }
1670 }
1671
1672 /***************************************
1673 *
1674 * memory-mapped I/O (bitblt)
1675 *
1676 ***************************************/
1677
1678 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1679 {
1680 int value = 0xff;
1681
1682 switch (address) {
1683 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1684 value = cirrus_vga_read_gr(s, 0x00);
1685 break;
1686 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1687 value = cirrus_vga_read_gr(s, 0x10);
1688 break;
1689 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1690 value = cirrus_vga_read_gr(s, 0x12);
1691 break;
1692 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1693 value = cirrus_vga_read_gr(s, 0x14);
1694 break;
1695 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1696 value = cirrus_vga_read_gr(s, 0x01);
1697 break;
1698 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1699 value = cirrus_vga_read_gr(s, 0x11);
1700 break;
1701 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1702 value = cirrus_vga_read_gr(s, 0x13);
1703 break;
1704 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1705 value = cirrus_vga_read_gr(s, 0x15);
1706 break;
1707 case (CIRRUS_MMIO_BLTWIDTH + 0):
1708 value = cirrus_vga_read_gr(s, 0x20);
1709 break;
1710 case (CIRRUS_MMIO_BLTWIDTH + 1):
1711 value = cirrus_vga_read_gr(s, 0x21);
1712 break;
1713 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1714 value = cirrus_vga_read_gr(s, 0x22);
1715 break;
1716 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1717 value = cirrus_vga_read_gr(s, 0x23);
1718 break;
1719 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1720 value = cirrus_vga_read_gr(s, 0x24);
1721 break;
1722 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1723 value = cirrus_vga_read_gr(s, 0x25);
1724 break;
1725 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1726 value = cirrus_vga_read_gr(s, 0x26);
1727 break;
1728 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1729 value = cirrus_vga_read_gr(s, 0x27);
1730 break;
1731 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1732 value = cirrus_vga_read_gr(s, 0x28);
1733 break;
1734 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1735 value = cirrus_vga_read_gr(s, 0x29);
1736 break;
1737 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1738 value = cirrus_vga_read_gr(s, 0x2a);
1739 break;
1740 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1741 value = cirrus_vga_read_gr(s, 0x2c);
1742 break;
1743 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1744 value = cirrus_vga_read_gr(s, 0x2d);
1745 break;
1746 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1747 value = cirrus_vga_read_gr(s, 0x2e);
1748 break;
1749 case CIRRUS_MMIO_BLTWRITEMASK:
1750 value = cirrus_vga_read_gr(s, 0x2f);
1751 break;
1752 case CIRRUS_MMIO_BLTMODE:
1753 value = cirrus_vga_read_gr(s, 0x30);
1754 break;
1755 case CIRRUS_MMIO_BLTROP:
1756 value = cirrus_vga_read_gr(s, 0x32);
1757 break;
1758 case CIRRUS_MMIO_BLTMODEEXT:
1759 value = cirrus_vga_read_gr(s, 0x33);
1760 break;
1761 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1762 value = cirrus_vga_read_gr(s, 0x34);
1763 break;
1764 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1765 value = cirrus_vga_read_gr(s, 0x35);
1766 break;
1767 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1768 value = cirrus_vga_read_gr(s, 0x38);
1769 break;
1770 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1771 value = cirrus_vga_read_gr(s, 0x39);
1772 break;
1773 case CIRRUS_MMIO_BLTSTATUS:
1774 value = cirrus_vga_read_gr(s, 0x31);
1775 break;
1776 default:
1777 #ifdef DEBUG_CIRRUS
1778 printf("cirrus: mmio read - address 0x%04x\n", address);
1779 #endif
1780 break;
1781 }
1782
1783 return (uint8_t) value;
1784 }
1785
1786 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1787 uint8_t value)
1788 {
1789 switch (address) {
1790 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1791 cirrus_vga_write_gr(s, 0x00, value);
1792 break;
1793 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1794 cirrus_vga_write_gr(s, 0x10, value);
1795 break;
1796 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1797 cirrus_vga_write_gr(s, 0x12, value);
1798 break;
1799 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1800 cirrus_vga_write_gr(s, 0x14, value);
1801 break;
1802 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1803 cirrus_vga_write_gr(s, 0x01, value);
1804 break;
1805 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1806 cirrus_vga_write_gr(s, 0x11, value);
1807 break;
1808 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1809 cirrus_vga_write_gr(s, 0x13, value);
1810 break;
1811 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1812 cirrus_vga_write_gr(s, 0x15, value);
1813 break;
1814 case (CIRRUS_MMIO_BLTWIDTH + 0):
1815 cirrus_vga_write_gr(s, 0x20, value);
1816 break;
1817 case (CIRRUS_MMIO_BLTWIDTH + 1):
1818 cirrus_vga_write_gr(s, 0x21, value);
1819 break;
1820 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1821 cirrus_vga_write_gr(s, 0x22, value);
1822 break;
1823 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1824 cirrus_vga_write_gr(s, 0x23, value);
1825 break;
1826 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1827 cirrus_vga_write_gr(s, 0x24, value);
1828 break;
1829 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1830 cirrus_vga_write_gr(s, 0x25, value);
1831 break;
1832 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1833 cirrus_vga_write_gr(s, 0x26, value);
1834 break;
1835 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1836 cirrus_vga_write_gr(s, 0x27, value);
1837 break;
1838 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1839 cirrus_vga_write_gr(s, 0x28, value);
1840 break;
1841 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1842 cirrus_vga_write_gr(s, 0x29, value);
1843 break;
1844 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1845 cirrus_vga_write_gr(s, 0x2a, value);
1846 break;
1847 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1848 /* ignored */
1849 break;
1850 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1851 cirrus_vga_write_gr(s, 0x2c, value);
1852 break;
1853 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1854 cirrus_vga_write_gr(s, 0x2d, value);
1855 break;
1856 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1857 cirrus_vga_write_gr(s, 0x2e, value);
1858 break;
1859 case CIRRUS_MMIO_BLTWRITEMASK:
1860 cirrus_vga_write_gr(s, 0x2f, value);
1861 break;
1862 case CIRRUS_MMIO_BLTMODE:
1863 cirrus_vga_write_gr(s, 0x30, value);
1864 break;
1865 case CIRRUS_MMIO_BLTROP:
1866 cirrus_vga_write_gr(s, 0x32, value);
1867 break;
1868 case CIRRUS_MMIO_BLTMODEEXT:
1869 cirrus_vga_write_gr(s, 0x33, value);
1870 break;
1871 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1872 cirrus_vga_write_gr(s, 0x34, value);
1873 break;
1874 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1875 cirrus_vga_write_gr(s, 0x35, value);
1876 break;
1877 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1878 cirrus_vga_write_gr(s, 0x38, value);
1879 break;
1880 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1881 cirrus_vga_write_gr(s, 0x39, value);
1882 break;
1883 case CIRRUS_MMIO_BLTSTATUS:
1884 cirrus_vga_write_gr(s, 0x31, value);
1885 break;
1886 default:
1887 #ifdef DEBUG_CIRRUS
1888 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1889 address, value);
1890 #endif
1891 break;
1892 }
1893 }
1894
1895 /***************************************
1896 *
1897 * write mode 4/5
1898 *
1899 ***************************************/
1900
1901 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1902 unsigned mode,
1903 unsigned offset,
1904 uint32_t mem_value)
1905 {
1906 int x;
1907 unsigned val = mem_value;
1908 uint8_t *dst;
1909
1910 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1911 for (x = 0; x < 8; x++) {
1912 if (val & 0x80) {
1913 *dst = s->cirrus_shadow_gr1;
1914 } else if (mode == 5) {
1915 *dst = s->cirrus_shadow_gr0;
1916 }
1917 val <<= 1;
1918 dst++;
1919 }
1920 memory_region_set_dirty(&s->vga.vram, offset, 8);
1921 }
1922
1923 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1924 unsigned mode,
1925 unsigned offset,
1926 uint32_t mem_value)
1927 {
1928 int x;
1929 unsigned val = mem_value;
1930 uint8_t *dst;
1931
1932 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1933 for (x = 0; x < 8; x++) {
1934 if (val & 0x80) {
1935 *dst = s->cirrus_shadow_gr1;
1936 *(dst + 1) = s->vga.gr[0x11];
1937 } else if (mode == 5) {
1938 *dst = s->cirrus_shadow_gr0;
1939 *(dst + 1) = s->vga.gr[0x10];
1940 }
1941 val <<= 1;
1942 dst += 2;
1943 }
1944 memory_region_set_dirty(&s->vga.vram, offset, 16);
1945 }
1946
1947 /***************************************
1948 *
1949 * memory access between 0xa0000-0xbffff
1950 *
1951 ***************************************/
1952
1953 static uint64_t cirrus_vga_mem_read(void *opaque,
1954 hwaddr addr,
1955 uint32_t size)
1956 {
1957 CirrusVGAState *s = opaque;
1958 unsigned bank_index;
1959 unsigned bank_offset;
1960 uint32_t val;
1961
1962 if ((s->vga.sr[0x07] & 0x01) == 0) {
1963 return vga_mem_readb(&s->vga, addr);
1964 }
1965
1966 if (addr < 0x10000) {
1967 /* XXX handle bitblt */
1968 /* video memory */
1969 bank_index = addr >> 15;
1970 bank_offset = addr & 0x7fff;
1971 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1972 bank_offset += s->cirrus_bank_base[bank_index];
1973 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
1974 bank_offset <<= 4;
1975 } else if (s->vga.gr[0x0B] & 0x02) {
1976 bank_offset <<= 3;
1977 }
1978 bank_offset &= s->cirrus_addr_mask;
1979 val = *(s->vga.vram_ptr + bank_offset);
1980 } else
1981 val = 0xff;
1982 } else if (addr >= 0x18000 && addr < 0x18100) {
1983 /* memory-mapped I/O */
1984 val = 0xff;
1985 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
1986 val = cirrus_mmio_blt_read(s, addr & 0xff);
1987 }
1988 } else {
1989 val = 0xff;
1990 #ifdef DEBUG_CIRRUS
1991 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
1992 #endif
1993 }
1994 return val;
1995 }
1996
1997 static void cirrus_vga_mem_write(void *opaque,
1998 hwaddr addr,
1999 uint64_t mem_value,
2000 uint32_t size)
2001 {
2002 CirrusVGAState *s = opaque;
2003 unsigned bank_index;
2004 unsigned bank_offset;
2005 unsigned mode;
2006
2007 if ((s->vga.sr[0x07] & 0x01) == 0) {
2008 vga_mem_writeb(&s->vga, addr, mem_value);
2009 return;
2010 }
2011
2012 if (addr < 0x10000) {
2013 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2014 /* bitblt */
2015 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2016 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2017 cirrus_bitblt_cputovideo_next(s);
2018 }
2019 } else {
2020 /* video memory */
2021 bank_index = addr >> 15;
2022 bank_offset = addr & 0x7fff;
2023 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2024 bank_offset += s->cirrus_bank_base[bank_index];
2025 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2026 bank_offset <<= 4;
2027 } else if (s->vga.gr[0x0B] & 0x02) {
2028 bank_offset <<= 3;
2029 }
2030 bank_offset &= s->cirrus_addr_mask;
2031 mode = s->vga.gr[0x05] & 0x7;
2032 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2033 *(s->vga.vram_ptr + bank_offset) = mem_value;
2034 memory_region_set_dirty(&s->vga.vram, bank_offset,
2035 sizeof(mem_value));
2036 } else {
2037 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2038 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2039 bank_offset,
2040 mem_value);
2041 } else {
2042 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2043 bank_offset,
2044 mem_value);
2045 }
2046 }
2047 }
2048 }
2049 } else if (addr >= 0x18000 && addr < 0x18100) {
2050 /* memory-mapped I/O */
2051 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2052 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2053 }
2054 } else {
2055 #ifdef DEBUG_CIRRUS
2056 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2057 mem_value);
2058 #endif
2059 }
2060 }
2061
2062 static const MemoryRegionOps cirrus_vga_mem_ops = {
2063 .read = cirrus_vga_mem_read,
2064 .write = cirrus_vga_mem_write,
2065 .endianness = DEVICE_LITTLE_ENDIAN,
2066 .impl = {
2067 .min_access_size = 1,
2068 .max_access_size = 1,
2069 },
2070 };
2071
2072 /***************************************
2073 *
2074 * hardware cursor
2075 *
2076 ***************************************/
2077
2078 static inline void invalidate_cursor1(CirrusVGAState *s)
2079 {
2080 if (s->last_hw_cursor_size) {
2081 vga_invalidate_scanlines(&s->vga,
2082 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2083 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2084 }
2085 }
2086
2087 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2088 {
2089 const uint8_t *src;
2090 uint32_t content;
2091 int y, y_min, y_max;
2092
2093 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2094 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2095 src += (s->vga.sr[0x13] & 0x3c) * 256;
2096 y_min = 64;
2097 y_max = -1;
2098 for(y = 0; y < 64; y++) {
2099 content = ((uint32_t *)src)[0] |
2100 ((uint32_t *)src)[1] |
2101 ((uint32_t *)src)[2] |
2102 ((uint32_t *)src)[3];
2103 if (content) {
2104 if (y < y_min)
2105 y_min = y;
2106 if (y > y_max)
2107 y_max = y;
2108 }
2109 src += 16;
2110 }
2111 } else {
2112 src += (s->vga.sr[0x13] & 0x3f) * 256;
2113 y_min = 32;
2114 y_max = -1;
2115 for(y = 0; y < 32; y++) {
2116 content = ((uint32_t *)src)[0] |
2117 ((uint32_t *)(src + 128))[0];
2118 if (content) {
2119 if (y < y_min)
2120 y_min = y;
2121 if (y > y_max)
2122 y_max = y;
2123 }
2124 src += 4;
2125 }
2126 }
2127 if (y_min > y_max) {
2128 s->last_hw_cursor_y_start = 0;
2129 s->last_hw_cursor_y_end = 0;
2130 } else {
2131 s->last_hw_cursor_y_start = y_min;
2132 s->last_hw_cursor_y_end = y_max + 1;
2133 }
2134 }
2135
2136 /* NOTE: we do not currently handle the cursor bitmap change, so we
2137 update the cursor only if it moves. */
2138 static void cirrus_cursor_invalidate(VGACommonState *s1)
2139 {
2140 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2141 int size;
2142
2143 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2144 size = 0;
2145 } else {
2146 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2147 size = 64;
2148 else
2149 size = 32;
2150 }
2151 /* invalidate last cursor and new cursor if any change */
2152 if (s->last_hw_cursor_size != size ||
2153 s->last_hw_cursor_x != s->hw_cursor_x ||
2154 s->last_hw_cursor_y != s->hw_cursor_y) {
2155
2156 invalidate_cursor1(s);
2157
2158 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 /* compute the real cursor min and max y */
2162 cirrus_cursor_compute_yrange(s);
2163 invalidate_cursor1(s);
2164 }
2165 }
2166
2167 #define DEPTH 8
2168 #include "cirrus_vga_template.h"
2169
2170 #define DEPTH 16
2171 #include "cirrus_vga_template.h"
2172
2173 #define DEPTH 32
2174 #include "cirrus_vga_template.h"
2175
2176 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2177 {
2178 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2179 int w, h, bpp, x1, x2, poffset;
2180 unsigned int color0, color1;
2181 const uint8_t *palette, *src;
2182 uint32_t content;
2183
2184 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2185 return;
2186 /* fast test to see if the cursor intersects with the scan line */
2187 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2188 h = 64;
2189 } else {
2190 h = 32;
2191 }
2192 if (scr_y < s->hw_cursor_y ||
2193 scr_y >= (s->hw_cursor_y + h))
2194 return;
2195
2196 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2197 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2198 src += (s->vga.sr[0x13] & 0x3c) * 256;
2199 src += (scr_y - s->hw_cursor_y) * 16;
2200 poffset = 8;
2201 content = ((uint32_t *)src)[0] |
2202 ((uint32_t *)src)[1] |
2203 ((uint32_t *)src)[2] |
2204 ((uint32_t *)src)[3];
2205 } else {
2206 src += (s->vga.sr[0x13] & 0x3f) * 256;
2207 src += (scr_y - s->hw_cursor_y) * 4;
2208 poffset = 128;
2209 content = ((uint32_t *)src)[0] |
2210 ((uint32_t *)(src + 128))[0];
2211 }
2212 /* if nothing to draw, no need to continue */
2213 if (!content)
2214 return;
2215 w = h;
2216
2217 x1 = s->hw_cursor_x;
2218 if (x1 >= s->vga.last_scr_width)
2219 return;
2220 x2 = s->hw_cursor_x + w;
2221 if (x2 > s->vga.last_scr_width)
2222 x2 = s->vga.last_scr_width;
2223 w = x2 - x1;
2224 palette = s->cirrus_hidden_palette;
2225 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2226 c6_to_8(palette[0x0 * 3 + 1]),
2227 c6_to_8(palette[0x0 * 3 + 2]));
2228 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2229 c6_to_8(palette[0xf * 3 + 1]),
2230 c6_to_8(palette[0xf * 3 + 2]));
2231 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2232 d1 += x1 * bpp;
2233 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2234 default:
2235 break;
2236 case 8:
2237 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2238 break;
2239 case 15:
2240 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2241 break;
2242 case 16:
2243 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2244 break;
2245 case 32:
2246 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2247 break;
2248 }
2249 }
2250
2251 /***************************************
2252 *
2253 * LFB memory access
2254 *
2255 ***************************************/
2256
2257 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2258 unsigned size)
2259 {
2260 CirrusVGAState *s = opaque;
2261 uint32_t ret;
2262
2263 addr &= s->cirrus_addr_mask;
2264
2265 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2266 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2267 /* memory-mapped I/O */
2268 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2269 } else if (0) {
2270 /* XXX handle bitblt */
2271 ret = 0xff;
2272 } else {
2273 /* video memory */
2274 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2275 addr <<= 4;
2276 } else if (s->vga.gr[0x0B] & 0x02) {
2277 addr <<= 3;
2278 }
2279 addr &= s->cirrus_addr_mask;
2280 ret = *(s->vga.vram_ptr + addr);
2281 }
2282
2283 return ret;
2284 }
2285
2286 static void cirrus_linear_write(void *opaque, hwaddr addr,
2287 uint64_t val, unsigned size)
2288 {
2289 CirrusVGAState *s = opaque;
2290 unsigned mode;
2291
2292 addr &= s->cirrus_addr_mask;
2293
2294 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2295 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2296 /* memory-mapped I/O */
2297 cirrus_mmio_blt_write(s, addr & 0xff, val);
2298 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2299 /* bitblt */
2300 *s->cirrus_srcptr++ = (uint8_t) val;
2301 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2302 cirrus_bitblt_cputovideo_next(s);
2303 }
2304 } else {
2305 /* video memory */
2306 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2307 addr <<= 4;
2308 } else if (s->vga.gr[0x0B] & 0x02) {
2309 addr <<= 3;
2310 }
2311 addr &= s->cirrus_addr_mask;
2312
2313 mode = s->vga.gr[0x05] & 0x7;
2314 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2315 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2316 memory_region_set_dirty(&s->vga.vram, addr, 1);
2317 } else {
2318 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2319 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2320 } else {
2321 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2322 }
2323 }
2324 }
2325 }
2326
2327 /***************************************
2328 *
2329 * system to screen memory access
2330 *
2331 ***************************************/
2332
2333
2334 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2335 hwaddr addr,
2336 unsigned size)
2337 {
2338 CirrusVGAState *s = opaque;
2339 uint32_t ret;
2340
2341 /* XXX handle bitblt */
2342 (void)s;
2343 ret = 0xff;
2344 return ret;
2345 }
2346
2347 static void cirrus_linear_bitblt_write(void *opaque,
2348 hwaddr addr,
2349 uint64_t val,
2350 unsigned size)
2351 {
2352 CirrusVGAState *s = opaque;
2353
2354 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2355 /* bitblt */
2356 *s->cirrus_srcptr++ = (uint8_t) val;
2357 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2358 cirrus_bitblt_cputovideo_next(s);
2359 }
2360 }
2361 }
2362
2363 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2364 .read = cirrus_linear_bitblt_read,
2365 .write = cirrus_linear_bitblt_write,
2366 .endianness = DEVICE_LITTLE_ENDIAN,
2367 .impl = {
2368 .min_access_size = 1,
2369 .max_access_size = 1,
2370 },
2371 };
2372
2373 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2374 {
2375 MemoryRegion *mr = &s->cirrus_bank[bank];
2376 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2377 && !((s->vga.sr[0x07] & 0x01) == 0)
2378 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2379 && !(s->vga.gr[0x0B] & 0x02);
2380
2381 memory_region_set_enabled(mr, enabled);
2382 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2383 }
2384
2385 static void map_linear_vram(CirrusVGAState *s)
2386 {
2387 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2388 s->linear_vram = true;
2389 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2390 }
2391 map_linear_vram_bank(s, 0);
2392 map_linear_vram_bank(s, 1);
2393 }
2394
2395 static void unmap_linear_vram(CirrusVGAState *s)
2396 {
2397 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2398 s->linear_vram = false;
2399 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2400 }
2401 memory_region_set_enabled(&s->cirrus_bank[0], false);
2402 memory_region_set_enabled(&s->cirrus_bank[1], false);
2403 }
2404
2405 /* Compute the memory access functions */
2406 static void cirrus_update_memory_access(CirrusVGAState *s)
2407 {
2408 unsigned mode;
2409
2410 memory_region_transaction_begin();
2411 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2412 goto generic_io;
2413 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2414 goto generic_io;
2415 } else {
2416 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2417 goto generic_io;
2418 } else if (s->vga.gr[0x0B] & 0x02) {
2419 goto generic_io;
2420 }
2421
2422 mode = s->vga.gr[0x05] & 0x7;
2423 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2424 map_linear_vram(s);
2425 } else {
2426 generic_io:
2427 unmap_linear_vram(s);
2428 }
2429 }
2430 memory_region_transaction_commit();
2431 }
2432
2433
2434 /* I/O ports */
2435
2436 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2437 unsigned size)
2438 {
2439 CirrusVGAState *c = opaque;
2440 VGACommonState *s = &c->vga;
2441 int val, index;
2442
2443 qemu_flush_coalesced_mmio_buffer();
2444 addr += 0x3b0;
2445
2446 if (vga_ioport_invalid(s, addr)) {
2447 val = 0xff;
2448 } else {
2449 switch (addr) {
2450 case 0x3c0:
2451 if (s->ar_flip_flop == 0) {
2452 val = s->ar_index;
2453 } else {
2454 val = 0;
2455 }
2456 break;
2457 case 0x3c1:
2458 index = s->ar_index & 0x1f;
2459 if (index < 21)
2460 val = s->ar[index];
2461 else
2462 val = 0;
2463 break;
2464 case 0x3c2:
2465 val = s->st00;
2466 break;
2467 case 0x3c4:
2468 val = s->sr_index;
2469 break;
2470 case 0x3c5:
2471 val = cirrus_vga_read_sr(c);
2472 break;
2473 #ifdef DEBUG_VGA_REG
2474 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2475 #endif
2476 break;
2477 case 0x3c6:
2478 val = cirrus_read_hidden_dac(c);
2479 break;
2480 case 0x3c7:
2481 val = s->dac_state;
2482 break;
2483 case 0x3c8:
2484 val = s->dac_write_index;
2485 c->cirrus_hidden_dac_lockindex = 0;
2486 break;
2487 case 0x3c9:
2488 val = cirrus_vga_read_palette(c);
2489 break;
2490 case 0x3ca:
2491 val = s->fcr;
2492 break;
2493 case 0x3cc:
2494 val = s->msr;
2495 break;
2496 case 0x3ce:
2497 val = s->gr_index;
2498 break;
2499 case 0x3cf:
2500 val = cirrus_vga_read_gr(c, s->gr_index);
2501 #ifdef DEBUG_VGA_REG
2502 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2503 #endif
2504 break;
2505 case 0x3b4:
2506 case 0x3d4:
2507 val = s->cr_index;
2508 break;
2509 case 0x3b5:
2510 case 0x3d5:
2511 val = cirrus_vga_read_cr(c, s->cr_index);
2512 #ifdef DEBUG_VGA_REG
2513 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2514 #endif
2515 break;
2516 case 0x3ba:
2517 case 0x3da:
2518 /* just toggle to fool polling */
2519 val = s->st01 = s->retrace(s);
2520 s->ar_flip_flop = 0;
2521 break;
2522 default:
2523 val = 0x00;
2524 break;
2525 }
2526 }
2527 #if defined(DEBUG_VGA)
2528 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2529 #endif
2530 return val;
2531 }
2532
2533 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2534 unsigned size)
2535 {
2536 CirrusVGAState *c = opaque;
2537 VGACommonState *s = &c->vga;
2538 int index;
2539
2540 qemu_flush_coalesced_mmio_buffer();
2541 addr += 0x3b0;
2542
2543 /* check port range access depending on color/monochrome mode */
2544 if (vga_ioport_invalid(s, addr)) {
2545 return;
2546 }
2547 #ifdef DEBUG_VGA
2548 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2549 #endif
2550
2551 switch (addr) {
2552 case 0x3c0:
2553 if (s->ar_flip_flop == 0) {
2554 val &= 0x3f;
2555 s->ar_index = val;
2556 } else {
2557 index = s->ar_index & 0x1f;
2558 switch (index) {
2559 case 0x00 ... 0x0f:
2560 s->ar[index] = val & 0x3f;
2561 break;
2562 case 0x10:
2563 s->ar[index] = val & ~0x10;
2564 break;
2565 case 0x11:
2566 s->ar[index] = val;
2567 break;
2568 case 0x12:
2569 s->ar[index] = val & ~0xc0;
2570 break;
2571 case 0x13:
2572 s->ar[index] = val & ~0xf0;
2573 break;
2574 case 0x14:
2575 s->ar[index] = val & ~0xf0;
2576 break;
2577 default:
2578 break;
2579 }
2580 }
2581 s->ar_flip_flop ^= 1;
2582 break;
2583 case 0x3c2:
2584 s->msr = val & ~0x10;
2585 s->update_retrace_info(s);
2586 break;
2587 case 0x3c4:
2588 s->sr_index = val;
2589 break;
2590 case 0x3c5:
2591 #ifdef DEBUG_VGA_REG
2592 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2593 #endif
2594 cirrus_vga_write_sr(c, val);
2595 break;
2596 break;
2597 case 0x3c6:
2598 cirrus_write_hidden_dac(c, val);
2599 break;
2600 case 0x3c7:
2601 s->dac_read_index = val;
2602 s->dac_sub_index = 0;
2603 s->dac_state = 3;
2604 break;
2605 case 0x3c8:
2606 s->dac_write_index = val;
2607 s->dac_sub_index = 0;
2608 s->dac_state = 0;
2609 break;
2610 case 0x3c9:
2611 cirrus_vga_write_palette(c, val);
2612 break;
2613 case 0x3ce:
2614 s->gr_index = val;
2615 break;
2616 case 0x3cf:
2617 #ifdef DEBUG_VGA_REG
2618 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2619 #endif
2620 cirrus_vga_write_gr(c, s->gr_index, val);
2621 break;
2622 case 0x3b4:
2623 case 0x3d4:
2624 s->cr_index = val;
2625 break;
2626 case 0x3b5:
2627 case 0x3d5:
2628 #ifdef DEBUG_VGA_REG
2629 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2630 #endif
2631 cirrus_vga_write_cr(c, val);
2632 break;
2633 case 0x3ba:
2634 case 0x3da:
2635 s->fcr = val & 0x10;
2636 break;
2637 }
2638 }
2639
2640 /***************************************
2641 *
2642 * memory-mapped I/O access
2643 *
2644 ***************************************/
2645
2646 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2647 unsigned size)
2648 {
2649 CirrusVGAState *s = opaque;
2650
2651 if (addr >= 0x100) {
2652 return cirrus_mmio_blt_read(s, addr - 0x100);
2653 } else {
2654 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2655 }
2656 }
2657
2658 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2659 uint64_t val, unsigned size)
2660 {
2661 CirrusVGAState *s = opaque;
2662
2663 if (addr >= 0x100) {
2664 cirrus_mmio_blt_write(s, addr - 0x100, val);
2665 } else {
2666 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2667 }
2668 }
2669
2670 static const MemoryRegionOps cirrus_mmio_io_ops = {
2671 .read = cirrus_mmio_read,
2672 .write = cirrus_mmio_write,
2673 .endianness = DEVICE_LITTLE_ENDIAN,
2674 .impl = {
2675 .min_access_size = 1,
2676 .max_access_size = 1,
2677 },
2678 };
2679
2680 /* load/save state */
2681
2682 static int cirrus_post_load(void *opaque, int version_id)
2683 {
2684 CirrusVGAState *s = opaque;
2685
2686 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2687 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2688
2689 cirrus_update_memory_access(s);
2690 /* force refresh */
2691 s->vga.graphic_mode = -1;
2692 cirrus_update_bank_ptr(s, 0);
2693 cirrus_update_bank_ptr(s, 1);
2694 return 0;
2695 }
2696
2697 static const VMStateDescription vmstate_cirrus_vga = {
2698 .name = "cirrus_vga",
2699 .version_id = 2,
2700 .minimum_version_id = 1,
2701 .minimum_version_id_old = 1,
2702 .post_load = cirrus_post_load,
2703 .fields = (VMStateField []) {
2704 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2705 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2706 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2707 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2708 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2709 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2710 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2711 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2712 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2713 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2714 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2715 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2716 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2717 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2718 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2719 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2720 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2721 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2722 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2723 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2724 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2725 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2726 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2727 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2728 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2729 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
2730 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
2731 /* XXX: we do not save the bitblt state - we assume we do not save
2732 the state when the blitter is active */
2733 VMSTATE_END_OF_LIST()
2734 }
2735 };
2736
2737 static const VMStateDescription vmstate_pci_cirrus_vga = {
2738 .name = "cirrus_vga",
2739 .version_id = 2,
2740 .minimum_version_id = 2,
2741 .minimum_version_id_old = 2,
2742 .fields = (VMStateField []) {
2743 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2744 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2745 vmstate_cirrus_vga, CirrusVGAState),
2746 VMSTATE_END_OF_LIST()
2747 }
2748 };
2749
2750 /***************************************
2751 *
2752 * initialize
2753 *
2754 ***************************************/
2755
2756 static void cirrus_reset(void *opaque)
2757 {
2758 CirrusVGAState *s = opaque;
2759
2760 vga_common_reset(&s->vga);
2761 unmap_linear_vram(s);
2762 s->vga.sr[0x06] = 0x0f;
2763 if (s->device_id == CIRRUS_ID_CLGD5446) {
2764 /* 4MB 64 bit memory config, always PCI */
2765 s->vga.sr[0x1F] = 0x2d; // MemClock
2766 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2767 s->vga.sr[0x0f] = 0x98;
2768 s->vga.sr[0x17] = 0x20;
2769 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2770 } else {
2771 s->vga.sr[0x1F] = 0x22; // MemClock
2772 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2773 s->vga.sr[0x17] = s->bustype;
2774 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2775 }
2776 s->vga.cr[0x27] = s->device_id;
2777
2778 s->cirrus_hidden_dac_lockindex = 5;
2779 s->cirrus_hidden_dac_data = 0;
2780 }
2781
2782 static const MemoryRegionOps cirrus_linear_io_ops = {
2783 .read = cirrus_linear_read,
2784 .write = cirrus_linear_write,
2785 .endianness = DEVICE_LITTLE_ENDIAN,
2786 .impl = {
2787 .min_access_size = 1,
2788 .max_access_size = 1,
2789 },
2790 };
2791
2792 static const MemoryRegionOps cirrus_vga_io_ops = {
2793 .read = cirrus_vga_ioport_read,
2794 .write = cirrus_vga_ioport_write,
2795 .endianness = DEVICE_LITTLE_ENDIAN,
2796 .impl = {
2797 .min_access_size = 1,
2798 .max_access_size = 1,
2799 },
2800 };
2801
2802 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci,
2803 MemoryRegion *system_memory,
2804 MemoryRegion *system_io)
2805 {
2806 int i;
2807 static int inited;
2808
2809 if (!inited) {
2810 inited = 1;
2811 for(i = 0;i < 256; i++)
2812 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2813 rop_to_index[CIRRUS_ROP_0] = 0;
2814 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2815 rop_to_index[CIRRUS_ROP_NOP] = 2;
2816 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2817 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2818 rop_to_index[CIRRUS_ROP_SRC] = 5;
2819 rop_to_index[CIRRUS_ROP_1] = 6;
2820 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2821 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2822 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2823 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2824 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2825 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2826 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2827 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2828 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2829 s->device_id = device_id;
2830 if (is_pci)
2831 s->bustype = CIRRUS_BUSTYPE_PCI;
2832 else
2833 s->bustype = CIRRUS_BUSTYPE_ISA;
2834 }
2835
2836 /* Register ioport 0x3b0 - 0x3df */
2837 memory_region_init_io(&s->cirrus_vga_io, &cirrus_vga_io_ops, s,
2838 "cirrus-io", 0x30);
2839 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2840
2841 memory_region_init(&s->low_mem_container,
2842 "cirrus-lowmem-container",
2843 0x20000);
2844
2845 memory_region_init_io(&s->low_mem, &cirrus_vga_mem_ops, s,
2846 "cirrus-low-memory", 0x20000);
2847 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2848 for (i = 0; i < 2; ++i) {
2849 static const char *names[] = { "vga.bank0", "vga.bank1" };
2850 MemoryRegion *bank = &s->cirrus_bank[i];
2851 memory_region_init_alias(bank, names[i], &s->vga.vram, 0, 0x8000);
2852 memory_region_set_enabled(bank, false);
2853 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2854 bank, 1);
2855 }
2856 memory_region_add_subregion_overlap(system_memory,
2857 isa_mem_base + 0x000a0000,
2858 &s->low_mem_container,
2859 1);
2860 memory_region_set_coalescing(&s->low_mem);
2861
2862 /* I/O handler for LFB */
2863 memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
2864 "cirrus-linear-io", s->vga.vram_size_mb
2865 * 1024 * 1024);
2866 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2867
2868 /* I/O handler for LFB */
2869 memory_region_init_io(&s->cirrus_linear_bitblt_io,
2870 &cirrus_linear_bitblt_io_ops,
2871 s,
2872 "cirrus-bitblt-mmio",
2873 0x400000);
2874 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2875
2876 /* I/O handler for memory-mapped I/O */
2877 memory_region_init_io(&s->cirrus_mmio_io, &cirrus_mmio_io_ops, s,
2878 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2879 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2880
2881 s->real_vram_size =
2882 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2883
2884 /* XXX: s->vga.vram_size must be a power of two */
2885 s->cirrus_addr_mask = s->real_vram_size - 1;
2886 s->linear_mmio_mask = s->real_vram_size - 256;
2887
2888 s->vga.get_bpp = cirrus_get_bpp;
2889 s->vga.get_offsets = cirrus_get_offsets;
2890 s->vga.get_resolution = cirrus_get_resolution;
2891 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2892 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2893
2894 qemu_register_reset(cirrus_reset, s);
2895 }
2896
2897 /***************************************
2898 *
2899 * ISA bus support
2900 *
2901 ***************************************/
2902
2903 static int vga_initfn(ISADevice *dev)
2904 {
2905 ISACirrusVGAState *d = DO_UPCAST(ISACirrusVGAState, dev, dev);
2906 VGACommonState *s = &d->cirrus_vga.vga;
2907
2908 vga_common_init(s);
2909 cirrus_init_common(&d->cirrus_vga, CIRRUS_ID_CLGD5430, 0,
2910 isa_address_space(dev), isa_address_space_io(dev));
2911 s->ds = graphic_console_init(s->update, s->invalidate,
2912 s->screen_dump, s->text_update,
2913 s);
2914 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2915 /* XXX ISA-LFB support */
2916 /* FIXME not qdev yet */
2917 return 0;
2918 }
2919
2920 static Property isa_vga_cirrus_properties[] = {
2921 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
2922 cirrus_vga.vga.vram_size_mb, 8),
2923 DEFINE_PROP_END_OF_LIST(),
2924 };
2925
2926 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
2927 {
2928 ISADeviceClass *k = ISA_DEVICE_CLASS(klass);
2929 DeviceClass *dc = DEVICE_CLASS(klass);
2930
2931 dc->vmsd = &vmstate_cirrus_vga;
2932 k->init = vga_initfn;
2933 dc->props = isa_vga_cirrus_properties;
2934 }
2935
2936 static const TypeInfo isa_cirrus_vga_info = {
2937 .name = "isa-cirrus-vga",
2938 .parent = TYPE_ISA_DEVICE,
2939 .instance_size = sizeof(ISACirrusVGAState),
2940 .class_init = isa_cirrus_vga_class_init,
2941 };
2942
2943 /***************************************
2944 *
2945 * PCI bus support
2946 *
2947 ***************************************/
2948
2949 static int pci_cirrus_vga_initfn(PCIDevice *dev)
2950 {
2951 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
2952 CirrusVGAState *s = &d->cirrus_vga;
2953 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2954 int16_t device_id = pc->device_id;
2955
2956 /* setup VGA */
2957 vga_common_init(&s->vga);
2958 cirrus_init_common(s, device_id, 1, pci_address_space(dev),
2959 pci_address_space_io(dev));
2960 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
2961 s->vga.screen_dump, s->vga.text_update,
2962 &s->vga);
2963
2964 /* setup PCI */
2965
2966 memory_region_init(&s->pci_bar, "cirrus-pci-bar0", 0x2000000);
2967
2968 /* XXX: add byte swapping apertures */
2969 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2970 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2971 &s->cirrus_linear_bitblt_io);
2972
2973 /* setup memory space */
2974 /* memory #0 LFB */
2975 /* memory #1 memory-mapped I/O */
2976 /* XXX: s->vga.vram_size must be a power of two */
2977 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
2978 if (device_id == CIRRUS_ID_CLGD5446) {
2979 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
2980 }
2981 return 0;
2982 }
2983
2984 static Property pci_vga_cirrus_properties[] = {
2985 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
2986 cirrus_vga.vga.vram_size_mb, 8),
2987 DEFINE_PROP_END_OF_LIST(),
2988 };
2989
2990 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
2991 {
2992 DeviceClass *dc = DEVICE_CLASS(klass);
2993 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2994
2995 k->no_hotplug = 1;
2996 k->init = pci_cirrus_vga_initfn;
2997 k->romfile = VGABIOS_CIRRUS_FILENAME;
2998 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
2999 k->device_id = CIRRUS_ID_CLGD5446;
3000 k->class_id = PCI_CLASS_DISPLAY_VGA;
3001 dc->desc = "Cirrus CLGD 54xx VGA";
3002 dc->vmsd = &vmstate_pci_cirrus_vga;
3003 dc->props = pci_vga_cirrus_properties;
3004 }
3005
3006 static const TypeInfo cirrus_vga_info = {
3007 .name = "cirrus-vga",
3008 .parent = TYPE_PCI_DEVICE,
3009 .instance_size = sizeof(PCICirrusVGAState),
3010 .class_init = cirrus_vga_class_init,
3011 };
3012
3013 static void cirrus_vga_register_types(void)
3014 {
3015 type_register_static(&isa_cirrus_vga_info);
3016 type_register_static(&cirrus_vga_info);
3017 }
3018
3019 type_init(cirrus_vga_register_types)
Various patches