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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.h"
31 #include "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 #define VGA_RAM_SIZE (8192 * 1024)
46
47 /***************************************
48 *
49 * definitions
50 *
51 ***************************************/
52
53 // ID
54 #define CIRRUS_ID_CLGD5422 (0x23<<2)
55 #define CIRRUS_ID_CLGD5426 (0x24<<2)
56 #define CIRRUS_ID_CLGD5424 (0x25<<2)
57 #define CIRRUS_ID_CLGD5428 (0x26<<2)
58 #define CIRRUS_ID_CLGD5430 (0x28<<2)
59 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
60 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
61 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
62
63 // sequencer 0x07
64 #define CIRRUS_SR7_BPP_VGA 0x00
65 #define CIRRUS_SR7_BPP_SVGA 0x01
66 #define CIRRUS_SR7_BPP_MASK 0x0e
67 #define CIRRUS_SR7_BPP_8 0x00
68 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
69 #define CIRRUS_SR7_BPP_24 0x04
70 #define CIRRUS_SR7_BPP_16 0x06
71 #define CIRRUS_SR7_BPP_32 0x08
72 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
73
74 // sequencer 0x0f
75 #define CIRRUS_MEMSIZE_512k 0x08
76 #define CIRRUS_MEMSIZE_1M 0x10
77 #define CIRRUS_MEMSIZE_2M 0x18
78 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
79
80 // sequencer 0x12
81 #define CIRRUS_CURSOR_SHOW 0x01
82 #define CIRRUS_CURSOR_HIDDENPEL 0x02
83 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
84
85 // sequencer 0x17
86 #define CIRRUS_BUSTYPE_VLBFAST 0x10
87 #define CIRRUS_BUSTYPE_PCI 0x20
88 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
89 #define CIRRUS_BUSTYPE_ISA 0x38
90 #define CIRRUS_MMIO_ENABLE 0x04
91 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
92 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
93
94 // control 0x0b
95 #define CIRRUS_BANKING_DUAL 0x01
96 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
97
98 // control 0x30
99 #define CIRRUS_BLTMODE_BACKWARDS 0x01
100 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
101 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
102 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
103 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
104 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
105 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
106 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
107 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
108 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
109 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
110
111 // control 0x31
112 #define CIRRUS_BLT_BUSY 0x01
113 #define CIRRUS_BLT_START 0x02
114 #define CIRRUS_BLT_RESET 0x04
115 #define CIRRUS_BLT_FIFOUSED 0x10
116 #define CIRRUS_BLT_AUTOSTART 0x80
117
118 // control 0x32
119 #define CIRRUS_ROP_0 0x00
120 #define CIRRUS_ROP_SRC_AND_DST 0x05
121 #define CIRRUS_ROP_NOP 0x06
122 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
123 #define CIRRUS_ROP_NOTDST 0x0b
124 #define CIRRUS_ROP_SRC 0x0d
125 #define CIRRUS_ROP_1 0x0e
126 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
127 #define CIRRUS_ROP_SRC_XOR_DST 0x59
128 #define CIRRUS_ROP_SRC_OR_DST 0x6d
129 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
130 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
131 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
132 #define CIRRUS_ROP_NOTSRC 0xd0
133 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
134 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
135
136 #define CIRRUS_ROP_NOP_INDEX 2
137 #define CIRRUS_ROP_SRC_INDEX 5
138
139 // control 0x33
140 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
141 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
142 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
143
144 // memory-mapped IO
145 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
146 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
147 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
148 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
149 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
150 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
151 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
152 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
153 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
154 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
155 #define CIRRUS_MMIO_BLTROP 0x1a // byte
156 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
157 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
159 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
160 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
161 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
167 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
168 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
169 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
170 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
171 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
172 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
173 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
174
175 #define CIRRUS_PNPMMIO_SIZE 0x1000
176
177 #define BLTUNSAFE(s) \
178 ( \
179 ( /* check dst is within bounds */ \
180 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
181 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
182 (s)->vga.vram_size \
183 ) || \
184 ( /* check src is within bounds */ \
185 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
186 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
187 (s)->vga.vram_size \
188 ) \
189 )
190
191 struct CirrusVGAState;
192 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
193 uint8_t * dst, const uint8_t * src,
194 int dstpitch, int srcpitch,
195 int bltwidth, int bltheight);
196 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
197 uint8_t *dst, int dst_pitch, int width, int height);
198
199 typedef struct CirrusVGAState {
200 VGACommonState vga;
201
202 MemoryRegion cirrus_linear_io;
203 MemoryRegion cirrus_linear_bitblt_io;
204 MemoryRegion cirrus_mmio_io;
205 MemoryRegion pci_bar;
206 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
207 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
208 MemoryRegion low_mem; /* always mapped, overridden by: */
209 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
210 uint32_t cirrus_addr_mask;
211 uint32_t linear_mmio_mask;
212 uint8_t cirrus_shadow_gr0;
213 uint8_t cirrus_shadow_gr1;
214 uint8_t cirrus_hidden_dac_lockindex;
215 uint8_t cirrus_hidden_dac_data;
216 uint32_t cirrus_bank_base[2];
217 uint32_t cirrus_bank_limit[2];
218 uint8_t cirrus_hidden_palette[48];
219 uint32_t hw_cursor_x;
220 uint32_t hw_cursor_y;
221 int cirrus_blt_pixelwidth;
222 int cirrus_blt_width;
223 int cirrus_blt_height;
224 int cirrus_blt_dstpitch;
225 int cirrus_blt_srcpitch;
226 uint32_t cirrus_blt_fgcol;
227 uint32_t cirrus_blt_bgcol;
228 uint32_t cirrus_blt_dstaddr;
229 uint32_t cirrus_blt_srcaddr;
230 uint8_t cirrus_blt_mode;
231 uint8_t cirrus_blt_modeext;
232 cirrus_bitblt_rop_t cirrus_rop;
233 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
234 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
235 uint8_t *cirrus_srcptr;
236 uint8_t *cirrus_srcptr_end;
237 uint32_t cirrus_srccounter;
238 /* hwcursor display state */
239 int last_hw_cursor_size;
240 int last_hw_cursor_x;
241 int last_hw_cursor_y;
242 int last_hw_cursor_y_start;
243 int last_hw_cursor_y_end;
244 int real_vram_size; /* XXX: suppress that */
245 int device_id;
246 int bustype;
247 } CirrusVGAState;
248
249 typedef struct PCICirrusVGAState {
250 PCIDevice dev;
251 CirrusVGAState cirrus_vga;
252 } PCICirrusVGAState;
253
254 typedef struct ISACirrusVGAState {
255 ISADevice dev;
256 CirrusVGAState cirrus_vga;
257 } ISACirrusVGAState;
258
259 static uint8_t rop_to_index[256];
260
261 /***************************************
262 *
263 * prototypes.
264 *
265 ***************************************/
266
267
268 static void cirrus_bitblt_reset(CirrusVGAState *s);
269 static void cirrus_update_memory_access(CirrusVGAState *s);
270
271 /***************************************
272 *
273 * raster operations
274 *
275 ***************************************/
276
277 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
278 uint8_t *dst,const uint8_t *src,
279 int dstpitch,int srcpitch,
280 int bltwidth,int bltheight)
281 {
282 }
283
284 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
285 uint8_t *dst,
286 int dstpitch, int bltwidth,int bltheight)
287 {
288 }
289
290 #define ROP_NAME 0
291 #define ROP_FN(d, s) 0
292 #include "cirrus_vga_rop.h"
293
294 #define ROP_NAME src_and_dst
295 #define ROP_FN(d, s) (s) & (d)
296 #include "cirrus_vga_rop.h"
297
298 #define ROP_NAME src_and_notdst
299 #define ROP_FN(d, s) (s) & (~(d))
300 #include "cirrus_vga_rop.h"
301
302 #define ROP_NAME notdst
303 #define ROP_FN(d, s) ~(d)
304 #include "cirrus_vga_rop.h"
305
306 #define ROP_NAME src
307 #define ROP_FN(d, s) s
308 #include "cirrus_vga_rop.h"
309
310 #define ROP_NAME 1
311 #define ROP_FN(d, s) ~0
312 #include "cirrus_vga_rop.h"
313
314 #define ROP_NAME notsrc_and_dst
315 #define ROP_FN(d, s) (~(s)) & (d)
316 #include "cirrus_vga_rop.h"
317
318 #define ROP_NAME src_xor_dst
319 #define ROP_FN(d, s) (s) ^ (d)
320 #include "cirrus_vga_rop.h"
321
322 #define ROP_NAME src_or_dst
323 #define ROP_FN(d, s) (s) | (d)
324 #include "cirrus_vga_rop.h"
325
326 #define ROP_NAME notsrc_or_notdst
327 #define ROP_FN(d, s) (~(s)) | (~(d))
328 #include "cirrus_vga_rop.h"
329
330 #define ROP_NAME src_notxor_dst
331 #define ROP_FN(d, s) ~((s) ^ (d))
332 #include "cirrus_vga_rop.h"
333
334 #define ROP_NAME src_or_notdst
335 #define ROP_FN(d, s) (s) | (~(d))
336 #include "cirrus_vga_rop.h"
337
338 #define ROP_NAME notsrc
339 #define ROP_FN(d, s) (~(s))
340 #include "cirrus_vga_rop.h"
341
342 #define ROP_NAME notsrc_or_dst
343 #define ROP_FN(d, s) (~(s)) | (d)
344 #include "cirrus_vga_rop.h"
345
346 #define ROP_NAME notsrc_and_notdst
347 #define ROP_FN(d, s) (~(s)) & (~(d))
348 #include "cirrus_vga_rop.h"
349
350 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
351 cirrus_bitblt_rop_fwd_0,
352 cirrus_bitblt_rop_fwd_src_and_dst,
353 cirrus_bitblt_rop_nop,
354 cirrus_bitblt_rop_fwd_src_and_notdst,
355 cirrus_bitblt_rop_fwd_notdst,
356 cirrus_bitblt_rop_fwd_src,
357 cirrus_bitblt_rop_fwd_1,
358 cirrus_bitblt_rop_fwd_notsrc_and_dst,
359 cirrus_bitblt_rop_fwd_src_xor_dst,
360 cirrus_bitblt_rop_fwd_src_or_dst,
361 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
362 cirrus_bitblt_rop_fwd_src_notxor_dst,
363 cirrus_bitblt_rop_fwd_src_or_notdst,
364 cirrus_bitblt_rop_fwd_notsrc,
365 cirrus_bitblt_rop_fwd_notsrc_or_dst,
366 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
367 };
368
369 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
370 cirrus_bitblt_rop_bkwd_0,
371 cirrus_bitblt_rop_bkwd_src_and_dst,
372 cirrus_bitblt_rop_nop,
373 cirrus_bitblt_rop_bkwd_src_and_notdst,
374 cirrus_bitblt_rop_bkwd_notdst,
375 cirrus_bitblt_rop_bkwd_src,
376 cirrus_bitblt_rop_bkwd_1,
377 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
378 cirrus_bitblt_rop_bkwd_src_xor_dst,
379 cirrus_bitblt_rop_bkwd_src_or_dst,
380 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
381 cirrus_bitblt_rop_bkwd_src_notxor_dst,
382 cirrus_bitblt_rop_bkwd_src_or_notdst,
383 cirrus_bitblt_rop_bkwd_notsrc,
384 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
385 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
386 };
387
388 #define TRANSP_ROP(name) {\
389 name ## _8,\
390 name ## _16,\
391 }
392 #define TRANSP_NOP(func) {\
393 func,\
394 func,\
395 }
396
397 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
398 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
399 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
400 TRANSP_NOP(cirrus_bitblt_rop_nop),
401 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
402 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
403 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
404 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
405 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
406 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
407 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
408 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
409 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
410 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
411 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
412 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
413 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
414 };
415
416 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
417 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
418 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
419 TRANSP_NOP(cirrus_bitblt_rop_nop),
420 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
421 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
422 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
423 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
424 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
425 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
426 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
427 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
428 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
429 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
430 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
431 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
432 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
433 };
434
435 #define ROP2(name) {\
436 name ## _8,\
437 name ## _16,\
438 name ## _24,\
439 name ## _32,\
440 }
441
442 #define ROP_NOP2(func) {\
443 func,\
444 func,\
445 func,\
446 func,\
447 }
448
449 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
450 ROP2(cirrus_patternfill_0),
451 ROP2(cirrus_patternfill_src_and_dst),
452 ROP_NOP2(cirrus_bitblt_rop_nop),
453 ROP2(cirrus_patternfill_src_and_notdst),
454 ROP2(cirrus_patternfill_notdst),
455 ROP2(cirrus_patternfill_src),
456 ROP2(cirrus_patternfill_1),
457 ROP2(cirrus_patternfill_notsrc_and_dst),
458 ROP2(cirrus_patternfill_src_xor_dst),
459 ROP2(cirrus_patternfill_src_or_dst),
460 ROP2(cirrus_patternfill_notsrc_or_notdst),
461 ROP2(cirrus_patternfill_src_notxor_dst),
462 ROP2(cirrus_patternfill_src_or_notdst),
463 ROP2(cirrus_patternfill_notsrc),
464 ROP2(cirrus_patternfill_notsrc_or_dst),
465 ROP2(cirrus_patternfill_notsrc_and_notdst),
466 };
467
468 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
469 ROP2(cirrus_colorexpand_transp_0),
470 ROP2(cirrus_colorexpand_transp_src_and_dst),
471 ROP_NOP2(cirrus_bitblt_rop_nop),
472 ROP2(cirrus_colorexpand_transp_src_and_notdst),
473 ROP2(cirrus_colorexpand_transp_notdst),
474 ROP2(cirrus_colorexpand_transp_src),
475 ROP2(cirrus_colorexpand_transp_1),
476 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
477 ROP2(cirrus_colorexpand_transp_src_xor_dst),
478 ROP2(cirrus_colorexpand_transp_src_or_dst),
479 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
480 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
481 ROP2(cirrus_colorexpand_transp_src_or_notdst),
482 ROP2(cirrus_colorexpand_transp_notsrc),
483 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
484 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
485 };
486
487 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
488 ROP2(cirrus_colorexpand_0),
489 ROP2(cirrus_colorexpand_src_and_dst),
490 ROP_NOP2(cirrus_bitblt_rop_nop),
491 ROP2(cirrus_colorexpand_src_and_notdst),
492 ROP2(cirrus_colorexpand_notdst),
493 ROP2(cirrus_colorexpand_src),
494 ROP2(cirrus_colorexpand_1),
495 ROP2(cirrus_colorexpand_notsrc_and_dst),
496 ROP2(cirrus_colorexpand_src_xor_dst),
497 ROP2(cirrus_colorexpand_src_or_dst),
498 ROP2(cirrus_colorexpand_notsrc_or_notdst),
499 ROP2(cirrus_colorexpand_src_notxor_dst),
500 ROP2(cirrus_colorexpand_src_or_notdst),
501 ROP2(cirrus_colorexpand_notsrc),
502 ROP2(cirrus_colorexpand_notsrc_or_dst),
503 ROP2(cirrus_colorexpand_notsrc_and_notdst),
504 };
505
506 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
507 ROP2(cirrus_colorexpand_pattern_transp_0),
508 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
509 ROP_NOP2(cirrus_bitblt_rop_nop),
510 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
511 ROP2(cirrus_colorexpand_pattern_transp_notdst),
512 ROP2(cirrus_colorexpand_pattern_transp_src),
513 ROP2(cirrus_colorexpand_pattern_transp_1),
514 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
515 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
516 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
517 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
518 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
519 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
520 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
521 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
522 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
523 };
524
525 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
526 ROP2(cirrus_colorexpand_pattern_0),
527 ROP2(cirrus_colorexpand_pattern_src_and_dst),
528 ROP_NOP2(cirrus_bitblt_rop_nop),
529 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
530 ROP2(cirrus_colorexpand_pattern_notdst),
531 ROP2(cirrus_colorexpand_pattern_src),
532 ROP2(cirrus_colorexpand_pattern_1),
533 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
534 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
535 ROP2(cirrus_colorexpand_pattern_src_or_dst),
536 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
537 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
538 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
539 ROP2(cirrus_colorexpand_pattern_notsrc),
540 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
541 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
542 };
543
544 static const cirrus_fill_t cirrus_fill[16][4] = {
545 ROP2(cirrus_fill_0),
546 ROP2(cirrus_fill_src_and_dst),
547 ROP_NOP2(cirrus_bitblt_fill_nop),
548 ROP2(cirrus_fill_src_and_notdst),
549 ROP2(cirrus_fill_notdst),
550 ROP2(cirrus_fill_src),
551 ROP2(cirrus_fill_1),
552 ROP2(cirrus_fill_notsrc_and_dst),
553 ROP2(cirrus_fill_src_xor_dst),
554 ROP2(cirrus_fill_src_or_dst),
555 ROP2(cirrus_fill_notsrc_or_notdst),
556 ROP2(cirrus_fill_src_notxor_dst),
557 ROP2(cirrus_fill_src_or_notdst),
558 ROP2(cirrus_fill_notsrc),
559 ROP2(cirrus_fill_notsrc_or_dst),
560 ROP2(cirrus_fill_notsrc_and_notdst),
561 };
562
563 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
564 {
565 unsigned int color;
566 switch (s->cirrus_blt_pixelwidth) {
567 case 1:
568 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
569 break;
570 case 2:
571 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
572 s->cirrus_blt_fgcol = le16_to_cpu(color);
573 break;
574 case 3:
575 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
576 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
577 break;
578 default:
579 case 4:
580 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
581 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
582 s->cirrus_blt_fgcol = le32_to_cpu(color);
583 break;
584 }
585 }
586
587 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
588 {
589 unsigned int color;
590 switch (s->cirrus_blt_pixelwidth) {
591 case 1:
592 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
593 break;
594 case 2:
595 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
596 s->cirrus_blt_bgcol = le16_to_cpu(color);
597 break;
598 case 3:
599 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
600 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
601 break;
602 default:
603 case 4:
604 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
605 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
606 s->cirrus_blt_bgcol = le32_to_cpu(color);
607 break;
608 }
609 }
610
611 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
612 int off_pitch, int bytesperline,
613 int lines)
614 {
615 int y;
616 int off_cur;
617 int off_cur_end;
618
619 for (y = 0; y < lines; y++) {
620 off_cur = off_begin;
621 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
622 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
623 off_begin += off_pitch;
624 }
625 }
626
627 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
628 const uint8_t * src)
629 {
630 uint8_t *dst;
631
632 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
633
634 if (BLTUNSAFE(s))
635 return 0;
636
637 (*s->cirrus_rop) (s, dst, src,
638 s->cirrus_blt_dstpitch, 0,
639 s->cirrus_blt_width, s->cirrus_blt_height);
640 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
641 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
642 s->cirrus_blt_height);
643 return 1;
644 }
645
646 /* fill */
647
648 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
649 {
650 cirrus_fill_t rop_func;
651
652 if (BLTUNSAFE(s))
653 return 0;
654 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
655 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
656 s->cirrus_blt_dstpitch,
657 s->cirrus_blt_width, s->cirrus_blt_height);
658 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
659 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
660 s->cirrus_blt_height);
661 cirrus_bitblt_reset(s);
662 return 1;
663 }
664
665 /***************************************
666 *
667 * bitblt (video-to-video)
668 *
669 ***************************************/
670
671 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
672 {
673 return cirrus_bitblt_common_patterncopy(s,
674 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
675 s->cirrus_addr_mask));
676 }
677
678 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
679 {
680 int sx = 0, sy = 0;
681 int dx = 0, dy = 0;
682 int depth = 0;
683 int notify = 0;
684
685 /* make sure to only copy if it's a plain copy ROP */
686 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
687 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
688
689 int width, height;
690
691 depth = s->vga.get_bpp(&s->vga) / 8;
692 s->vga.get_resolution(&s->vga, &width, &height);
693
694 /* extra x, y */
695 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
696 sy = (src / ABS(s->cirrus_blt_srcpitch));
697 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
698 dy = (dst / ABS(s->cirrus_blt_dstpitch));
699
700 /* normalize width */
701 w /= depth;
702
703 /* if we're doing a backward copy, we have to adjust
704 our x/y to be the upper left corner (instead of the lower
705 right corner) */
706 if (s->cirrus_blt_dstpitch < 0) {
707 sx -= (s->cirrus_blt_width / depth) - 1;
708 dx -= (s->cirrus_blt_width / depth) - 1;
709 sy -= s->cirrus_blt_height - 1;
710 dy -= s->cirrus_blt_height - 1;
711 }
712
713 /* are we in the visible portion of memory? */
714 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
715 (sx + w) <= width && (sy + h) <= height &&
716 (dx + w) <= width && (dy + h) <= height) {
717 notify = 1;
718 }
719 }
720
721 /* we have to flush all pending changes so that the copy
722 is generated at the appropriate moment in time */
723 if (notify)
724 vga_hw_update();
725
726 (*s->cirrus_rop) (s, s->vga.vram_ptr +
727 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
728 s->vga.vram_ptr +
729 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
730 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
731 s->cirrus_blt_width, s->cirrus_blt_height);
732
733 if (notify)
734 qemu_console_copy(s->vga.ds,
735 sx, sy, dx, dy,
736 s->cirrus_blt_width / depth,
737 s->cirrus_blt_height);
738
739 /* we don't have to notify the display that this portion has
740 changed since qemu_console_copy implies this */
741
742 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
743 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
744 s->cirrus_blt_height);
745 }
746
747 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
748 {
749 if (BLTUNSAFE(s))
750 return 0;
751
752 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
753 s->cirrus_blt_srcaddr - s->vga.start_addr,
754 s->cirrus_blt_width, s->cirrus_blt_height);
755
756 return 1;
757 }
758
759 /***************************************
760 *
761 * bitblt (cpu-to-video)
762 *
763 ***************************************/
764
765 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
766 {
767 int copy_count;
768 uint8_t *end_ptr;
769
770 if (s->cirrus_srccounter > 0) {
771 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
772 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
773 the_end:
774 s->cirrus_srccounter = 0;
775 cirrus_bitblt_reset(s);
776 } else {
777 /* at least one scan line */
778 do {
779 (*s->cirrus_rop)(s, s->vga.vram_ptr +
780 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
781 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
782 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
783 s->cirrus_blt_width, 1);
784 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
785 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
786 if (s->cirrus_srccounter <= 0)
787 goto the_end;
788 /* more bytes than needed can be transferred because of
789 word alignment, so we keep them for the next line */
790 /* XXX: keep alignment to speed up transfer */
791 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
792 copy_count = s->cirrus_srcptr_end - end_ptr;
793 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
794 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
795 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
796 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
797 }
798 }
799 }
800
801 /***************************************
802 *
803 * bitblt wrapper
804 *
805 ***************************************/
806
807 static void cirrus_bitblt_reset(CirrusVGAState * s)
808 {
809 int need_update;
810
811 s->vga.gr[0x31] &=
812 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
813 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
814 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
815 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
816 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
817 s->cirrus_srccounter = 0;
818 if (!need_update)
819 return;
820 cirrus_update_memory_access(s);
821 }
822
823 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
824 {
825 int w;
826
827 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
828 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
829 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
830
831 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
832 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
833 s->cirrus_blt_srcpitch = 8;
834 } else {
835 /* XXX: check for 24 bpp */
836 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
837 }
838 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
839 } else {
840 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
841 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
842 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
843 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
844 else
845 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
846 } else {
847 /* always align input size to 32 bits */
848 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
849 }
850 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
851 }
852 s->cirrus_srcptr = s->cirrus_bltbuf;
853 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
854 cirrus_update_memory_access(s);
855 return 1;
856 }
857
858 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
859 {
860 /* XXX */
861 #ifdef DEBUG_BITBLT
862 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
863 #endif
864 return 0;
865 }
866
867 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
868 {
869 int ret;
870
871 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
872 ret = cirrus_bitblt_videotovideo_patterncopy(s);
873 } else {
874 ret = cirrus_bitblt_videotovideo_copy(s);
875 }
876 if (ret)
877 cirrus_bitblt_reset(s);
878 return ret;
879 }
880
881 static void cirrus_bitblt_start(CirrusVGAState * s)
882 {
883 uint8_t blt_rop;
884
885 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
886
887 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
888 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
889 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
890 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
891 s->cirrus_blt_dstaddr =
892 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
893 s->cirrus_blt_srcaddr =
894 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
895 s->cirrus_blt_mode = s->vga.gr[0x30];
896 s->cirrus_blt_modeext = s->vga.gr[0x33];
897 blt_rop = s->vga.gr[0x32];
898
899 #ifdef DEBUG_BITBLT
900 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",
901 blt_rop,
902 s->cirrus_blt_mode,
903 s->cirrus_blt_modeext,
904 s->cirrus_blt_width,
905 s->cirrus_blt_height,
906 s->cirrus_blt_dstpitch,
907 s->cirrus_blt_srcpitch,
908 s->cirrus_blt_dstaddr,
909 s->cirrus_blt_srcaddr,
910 s->vga.gr[0x2f]);
911 #endif
912
913 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
914 case CIRRUS_BLTMODE_PIXELWIDTH8:
915 s->cirrus_blt_pixelwidth = 1;
916 break;
917 case CIRRUS_BLTMODE_PIXELWIDTH16:
918 s->cirrus_blt_pixelwidth = 2;
919 break;
920 case CIRRUS_BLTMODE_PIXELWIDTH24:
921 s->cirrus_blt_pixelwidth = 3;
922 break;
923 case CIRRUS_BLTMODE_PIXELWIDTH32:
924 s->cirrus_blt_pixelwidth = 4;
925 break;
926 default:
927 #ifdef DEBUG_BITBLT
928 printf("cirrus: bitblt - pixel width is unknown\n");
929 #endif
930 goto bitblt_ignore;
931 }
932 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
933
934 if ((s->
935 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
936 CIRRUS_BLTMODE_MEMSYSDEST))
937 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
938 #ifdef DEBUG_BITBLT
939 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
940 #endif
941 goto bitblt_ignore;
942 }
943
944 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
945 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
946 CIRRUS_BLTMODE_TRANSPARENTCOMP |
947 CIRRUS_BLTMODE_PATTERNCOPY |
948 CIRRUS_BLTMODE_COLOREXPAND)) ==
949 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
950 cirrus_bitblt_fgcol(s);
951 cirrus_bitblt_solidfill(s, blt_rop);
952 } else {
953 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
954 CIRRUS_BLTMODE_PATTERNCOPY)) ==
955 CIRRUS_BLTMODE_COLOREXPAND) {
956
957 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
958 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
959 cirrus_bitblt_bgcol(s);
960 else
961 cirrus_bitblt_fgcol(s);
962 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
963 } else {
964 cirrus_bitblt_fgcol(s);
965 cirrus_bitblt_bgcol(s);
966 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
967 }
968 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
969 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
970 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
971 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
972 cirrus_bitblt_bgcol(s);
973 else
974 cirrus_bitblt_fgcol(s);
975 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
976 } else {
977 cirrus_bitblt_fgcol(s);
978 cirrus_bitblt_bgcol(s);
979 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
980 }
981 } else {
982 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
983 }
984 } else {
985 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
986 if (s->cirrus_blt_pixelwidth > 2) {
987 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
988 goto bitblt_ignore;
989 }
990 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
991 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
992 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
993 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
994 } else {
995 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
996 }
997 } else {
998 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
999 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1000 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1001 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1002 } else {
1003 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1004 }
1005 }
1006 }
1007 // setup bitblt engine.
1008 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1009 if (!cirrus_bitblt_cputovideo(s))
1010 goto bitblt_ignore;
1011 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1012 if (!cirrus_bitblt_videotocpu(s))
1013 goto bitblt_ignore;
1014 } else {
1015 if (!cirrus_bitblt_videotovideo(s))
1016 goto bitblt_ignore;
1017 }
1018 }
1019 return;
1020 bitblt_ignore:;
1021 cirrus_bitblt_reset(s);
1022 }
1023
1024 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1025 {
1026 unsigned old_value;
1027
1028 old_value = s->vga.gr[0x31];
1029 s->vga.gr[0x31] = reg_value;
1030
1031 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1032 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1033 cirrus_bitblt_reset(s);
1034 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1035 ((reg_value & CIRRUS_BLT_START) != 0)) {
1036 cirrus_bitblt_start(s);
1037 }
1038 }
1039
1040
1041 /***************************************
1042 *
1043 * basic parameters
1044 *
1045 ***************************************/
1046
1047 static void cirrus_get_offsets(VGACommonState *s1,
1048 uint32_t *pline_offset,
1049 uint32_t *pstart_addr,
1050 uint32_t *pline_compare)
1051 {
1052 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1053 uint32_t start_addr, line_offset, line_compare;
1054
1055 line_offset = s->vga.cr[0x13]
1056 | ((s->vga.cr[0x1b] & 0x10) << 4);
1057 line_offset <<= 3;
1058 *pline_offset = line_offset;
1059
1060 start_addr = (s->vga.cr[0x0c] << 8)
1061 | s->vga.cr[0x0d]
1062 | ((s->vga.cr[0x1b] & 0x01) << 16)
1063 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1064 | ((s->vga.cr[0x1d] & 0x80) << 12);
1065 *pstart_addr = start_addr;
1066
1067 line_compare = s->vga.cr[0x18] |
1068 ((s->vga.cr[0x07] & 0x10) << 4) |
1069 ((s->vga.cr[0x09] & 0x40) << 3);
1070 *pline_compare = line_compare;
1071 }
1072
1073 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1074 {
1075 uint32_t ret = 16;
1076
1077 switch (s->cirrus_hidden_dac_data & 0xf) {
1078 case 0:
1079 ret = 15;
1080 break; /* Sierra HiColor */
1081 case 1:
1082 ret = 16;
1083 break; /* XGA HiColor */
1084 default:
1085 #ifdef DEBUG_CIRRUS
1086 printf("cirrus: invalid DAC value %x in 16bpp\n",
1087 (s->cirrus_hidden_dac_data & 0xf));
1088 #endif
1089 ret = 15; /* XXX */
1090 break;
1091 }
1092 return ret;
1093 }
1094
1095 static int cirrus_get_bpp(VGACommonState *s1)
1096 {
1097 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1098 uint32_t ret = 8;
1099
1100 if ((s->vga.sr[0x07] & 0x01) != 0) {
1101 /* Cirrus SVGA */
1102 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1103 case CIRRUS_SR7_BPP_8:
1104 ret = 8;
1105 break;
1106 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1107 ret = cirrus_get_bpp16_depth(s);
1108 break;
1109 case CIRRUS_SR7_BPP_24:
1110 ret = 24;
1111 break;
1112 case CIRRUS_SR7_BPP_16:
1113 ret = cirrus_get_bpp16_depth(s);
1114 break;
1115 case CIRRUS_SR7_BPP_32:
1116 ret = 32;
1117 break;
1118 default:
1119 #ifdef DEBUG_CIRRUS
1120 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1121 #endif
1122 ret = 8;
1123 break;
1124 }
1125 } else {
1126 /* VGA */
1127 ret = 0;
1128 }
1129
1130 return ret;
1131 }
1132
1133 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1134 {
1135 int width, height;
1136
1137 width = (s->cr[0x01] + 1) * 8;
1138 height = s->cr[0x12] |
1139 ((s->cr[0x07] & 0x02) << 7) |
1140 ((s->cr[0x07] & 0x40) << 3);
1141 height = (height + 1);
1142 /* interlace support */
1143 if (s->cr[0x1a] & 0x01)
1144 height = height * 2;
1145 *pwidth = width;
1146 *pheight = height;
1147 }
1148
1149 /***************************************
1150 *
1151 * bank memory
1152 *
1153 ***************************************/
1154
1155 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1156 {
1157 unsigned offset;
1158 unsigned limit;
1159
1160 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1161 offset = s->vga.gr[0x09 + bank_index];
1162 else /* single bank */
1163 offset = s->vga.gr[0x09];
1164
1165 if ((s->vga.gr[0x0b] & 0x20) != 0)
1166 offset <<= 14;
1167 else
1168 offset <<= 12;
1169
1170 if (s->real_vram_size <= offset)
1171 limit = 0;
1172 else
1173 limit = s->real_vram_size - offset;
1174
1175 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1176 if (limit > 0x8000) {
1177 offset += 0x8000;
1178 limit -= 0x8000;
1179 } else {
1180 limit = 0;
1181 }
1182 }
1183
1184 if (limit > 0) {
1185 s->cirrus_bank_base[bank_index] = offset;
1186 s->cirrus_bank_limit[bank_index] = limit;
1187 } else {
1188 s->cirrus_bank_base[bank_index] = 0;
1189 s->cirrus_bank_limit[bank_index] = 0;
1190 }
1191 }
1192
1193 /***************************************
1194 *
1195 * I/O access between 0x3c4-0x3c5
1196 *
1197 ***************************************/
1198
1199 static int cirrus_vga_read_sr(CirrusVGAState * s)
1200 {
1201 switch (s->vga.sr_index) {
1202 case 0x00: // Standard VGA
1203 case 0x01: // Standard VGA
1204 case 0x02: // Standard VGA
1205 case 0x03: // Standard VGA
1206 case 0x04: // Standard VGA
1207 return s->vga.sr[s->vga.sr_index];
1208 case 0x06: // Unlock Cirrus extensions
1209 return s->vga.sr[s->vga.sr_index];
1210 case 0x10:
1211 case 0x30:
1212 case 0x50:
1213 case 0x70: // Graphics Cursor X
1214 case 0x90:
1215 case 0xb0:
1216 case 0xd0:
1217 case 0xf0: // Graphics Cursor X
1218 return s->vga.sr[0x10];
1219 case 0x11:
1220 case 0x31:
1221 case 0x51:
1222 case 0x71: // Graphics Cursor Y
1223 case 0x91:
1224 case 0xb1:
1225 case 0xd1:
1226 case 0xf1: // Graphics Cursor Y
1227 return s->vga.sr[0x11];
1228 case 0x05: // ???
1229 case 0x07: // Extended Sequencer Mode
1230 case 0x08: // EEPROM Control
1231 case 0x09: // Scratch Register 0
1232 case 0x0a: // Scratch Register 1
1233 case 0x0b: // VCLK 0
1234 case 0x0c: // VCLK 1
1235 case 0x0d: // VCLK 2
1236 case 0x0e: // VCLK 3
1237 case 0x0f: // DRAM Control
1238 case 0x12: // Graphics Cursor Attribute
1239 case 0x13: // Graphics Cursor Pattern Address
1240 case 0x14: // Scratch Register 2
1241 case 0x15: // Scratch Register 3
1242 case 0x16: // Performance Tuning Register
1243 case 0x17: // Configuration Readback and Extended Control
1244 case 0x18: // Signature Generator Control
1245 case 0x19: // Signal Generator Result
1246 case 0x1a: // Signal Generator Result
1247 case 0x1b: // VCLK 0 Denominator & Post
1248 case 0x1c: // VCLK 1 Denominator & Post
1249 case 0x1d: // VCLK 2 Denominator & Post
1250 case 0x1e: // VCLK 3 Denominator & Post
1251 case 0x1f: // BIOS Write Enable and MCLK select
1252 #ifdef DEBUG_CIRRUS
1253 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1254 #endif
1255 return s->vga.sr[s->vga.sr_index];
1256 default:
1257 #ifdef DEBUG_CIRRUS
1258 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1259 #endif
1260 return 0xff;
1261 break;
1262 }
1263 }
1264
1265 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1266 {
1267 switch (s->vga.sr_index) {
1268 case 0x00: // Standard VGA
1269 case 0x01: // Standard VGA
1270 case 0x02: // Standard VGA
1271 case 0x03: // Standard VGA
1272 case 0x04: // Standard VGA
1273 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1274 if (s->vga.sr_index == 1)
1275 s->vga.update_retrace_info(&s->vga);
1276 break;
1277 case 0x06: // Unlock Cirrus extensions
1278 val &= 0x17;
1279 if (val == 0x12) {
1280 s->vga.sr[s->vga.sr_index] = 0x12;
1281 } else {
1282 s->vga.sr[s->vga.sr_index] = 0x0f;
1283 }
1284 break;
1285 case 0x10:
1286 case 0x30:
1287 case 0x50:
1288 case 0x70: // Graphics Cursor X
1289 case 0x90:
1290 case 0xb0:
1291 case 0xd0:
1292 case 0xf0: // Graphics Cursor X
1293 s->vga.sr[0x10] = val;
1294 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1295 break;
1296 case 0x11:
1297 case 0x31:
1298 case 0x51:
1299 case 0x71: // Graphics Cursor Y
1300 case 0x91:
1301 case 0xb1:
1302 case 0xd1:
1303 case 0xf1: // Graphics Cursor Y
1304 s->vga.sr[0x11] = val;
1305 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1306 break;
1307 case 0x07: // Extended Sequencer Mode
1308 cirrus_update_memory_access(s);
1309 case 0x08: // EEPROM Control
1310 case 0x09: // Scratch Register 0
1311 case 0x0a: // Scratch Register 1
1312 case 0x0b: // VCLK 0
1313 case 0x0c: // VCLK 1
1314 case 0x0d: // VCLK 2
1315 case 0x0e: // VCLK 3
1316 case 0x0f: // DRAM Control
1317 case 0x12: // Graphics Cursor Attribute
1318 case 0x13: // Graphics Cursor Pattern Address
1319 case 0x14: // Scratch Register 2
1320 case 0x15: // Scratch Register 3
1321 case 0x16: // Performance Tuning Register
1322 case 0x18: // Signature Generator Control
1323 case 0x19: // Signature Generator Result
1324 case 0x1a: // Signature Generator Result
1325 case 0x1b: // VCLK 0 Denominator & Post
1326 case 0x1c: // VCLK 1 Denominator & Post
1327 case 0x1d: // VCLK 2 Denominator & Post
1328 case 0x1e: // VCLK 3 Denominator & Post
1329 case 0x1f: // BIOS Write Enable and MCLK select
1330 s->vga.sr[s->vga.sr_index] = val;
1331 #ifdef DEBUG_CIRRUS
1332 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1333 s->vga.sr_index, val);
1334 #endif
1335 break;
1336 case 0x17: // Configuration Readback and Extended Control
1337 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1338 | (val & 0xc7);
1339 cirrus_update_memory_access(s);
1340 break;
1341 default:
1342 #ifdef DEBUG_CIRRUS
1343 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1344 s->vga.sr_index, val);
1345 #endif
1346 break;
1347 }
1348 }
1349
1350 /***************************************
1351 *
1352 * I/O access at 0x3c6
1353 *
1354 ***************************************/
1355
1356 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1357 {
1358 if (++s->cirrus_hidden_dac_lockindex == 5) {
1359 s->cirrus_hidden_dac_lockindex = 0;
1360 return s->cirrus_hidden_dac_data;
1361 }
1362 return 0xff;
1363 }
1364
1365 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1366 {
1367 if (s->cirrus_hidden_dac_lockindex == 4) {
1368 s->cirrus_hidden_dac_data = reg_value;
1369 #if defined(DEBUG_CIRRUS)
1370 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1371 #endif
1372 }
1373 s->cirrus_hidden_dac_lockindex = 0;
1374 }
1375
1376 /***************************************
1377 *
1378 * I/O access at 0x3c9
1379 *
1380 ***************************************/
1381
1382 static int cirrus_vga_read_palette(CirrusVGAState * s)
1383 {
1384 int val;
1385
1386 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1387 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1388 s->vga.dac_sub_index];
1389 } else {
1390 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1391 }
1392 if (++s->vga.dac_sub_index == 3) {
1393 s->vga.dac_sub_index = 0;
1394 s->vga.dac_read_index++;
1395 }
1396 return val;
1397 }
1398
1399 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1400 {
1401 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1402 if (++s->vga.dac_sub_index == 3) {
1403 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1404 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1405 s->vga.dac_cache, 3);
1406 } else {
1407 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1408 }
1409 /* XXX update cursor */
1410 s->vga.dac_sub_index = 0;
1411 s->vga.dac_write_index++;
1412 }
1413 }
1414
1415 /***************************************
1416 *
1417 * I/O access between 0x3ce-0x3cf
1418 *
1419 ***************************************/
1420
1421 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1422 {
1423 switch (reg_index) {
1424 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1425 return s->cirrus_shadow_gr0;
1426 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1427 return s->cirrus_shadow_gr1;
1428 case 0x02: // Standard VGA
1429 case 0x03: // Standard VGA
1430 case 0x04: // Standard VGA
1431 case 0x06: // Standard VGA
1432 case 0x07: // Standard VGA
1433 case 0x08: // Standard VGA
1434 return s->vga.gr[s->vga.gr_index];
1435 case 0x05: // Standard VGA, Cirrus extended mode
1436 default:
1437 break;
1438 }
1439
1440 if (reg_index < 0x3a) {
1441 return s->vga.gr[reg_index];
1442 } else {
1443 #ifdef DEBUG_CIRRUS
1444 printf("cirrus: inport gr_index %02x\n", reg_index);
1445 #endif
1446 return 0xff;
1447 }
1448 }
1449
1450 static void
1451 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1452 {
1453 #if defined(DEBUG_BITBLT) && 0
1454 printf("gr%02x: %02x\n", reg_index, reg_value);
1455 #endif
1456 switch (reg_index) {
1457 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1458 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1459 s->cirrus_shadow_gr0 = reg_value;
1460 break;
1461 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1462 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1463 s->cirrus_shadow_gr1 = reg_value;
1464 break;
1465 case 0x02: // Standard VGA
1466 case 0x03: // Standard VGA
1467 case 0x04: // Standard VGA
1468 case 0x06: // Standard VGA
1469 case 0x07: // Standard VGA
1470 case 0x08: // Standard VGA
1471 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1472 break;
1473 case 0x05: // Standard VGA, Cirrus extended mode
1474 s->vga.gr[reg_index] = reg_value & 0x7f;
1475 cirrus_update_memory_access(s);
1476 break;
1477 case 0x09: // bank offset #0
1478 case 0x0A: // bank offset #1
1479 s->vga.gr[reg_index] = reg_value;
1480 cirrus_update_bank_ptr(s, 0);
1481 cirrus_update_bank_ptr(s, 1);
1482 cirrus_update_memory_access(s);
1483 break;
1484 case 0x0B:
1485 s->vga.gr[reg_index] = reg_value;
1486 cirrus_update_bank_ptr(s, 0);
1487 cirrus_update_bank_ptr(s, 1);
1488 cirrus_update_memory_access(s);
1489 break;
1490 case 0x10: // BGCOLOR 0x0000ff00
1491 case 0x11: // FGCOLOR 0x0000ff00
1492 case 0x12: // BGCOLOR 0x00ff0000
1493 case 0x13: // FGCOLOR 0x00ff0000
1494 case 0x14: // BGCOLOR 0xff000000
1495 case 0x15: // FGCOLOR 0xff000000
1496 case 0x20: // BLT WIDTH 0x0000ff
1497 case 0x22: // BLT HEIGHT 0x0000ff
1498 case 0x24: // BLT DEST PITCH 0x0000ff
1499 case 0x26: // BLT SRC PITCH 0x0000ff
1500 case 0x28: // BLT DEST ADDR 0x0000ff
1501 case 0x29: // BLT DEST ADDR 0x00ff00
1502 case 0x2c: // BLT SRC ADDR 0x0000ff
1503 case 0x2d: // BLT SRC ADDR 0x00ff00
1504 case 0x2f: // BLT WRITEMASK
1505 case 0x30: // BLT MODE
1506 case 0x32: // RASTER OP
1507 case 0x33: // BLT MODEEXT
1508 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1509 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1510 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1511 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1512 s->vga.gr[reg_index] = reg_value;
1513 break;
1514 case 0x21: // BLT WIDTH 0x001f00
1515 case 0x23: // BLT HEIGHT 0x001f00
1516 case 0x25: // BLT DEST PITCH 0x001f00
1517 case 0x27: // BLT SRC PITCH 0x001f00
1518 s->vga.gr[reg_index] = reg_value & 0x1f;
1519 break;
1520 case 0x2a: // BLT DEST ADDR 0x3f0000
1521 s->vga.gr[reg_index] = reg_value & 0x3f;
1522 /* if auto start mode, starts bit blt now */
1523 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1524 cirrus_bitblt_start(s);
1525 }
1526 break;
1527 case 0x2e: // BLT SRC ADDR 0x3f0000
1528 s->vga.gr[reg_index] = reg_value & 0x3f;
1529 break;
1530 case 0x31: // BLT STATUS/START
1531 cirrus_write_bitblt(s, reg_value);
1532 break;
1533 default:
1534 #ifdef DEBUG_CIRRUS
1535 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1536 reg_value);
1537 #endif
1538 break;
1539 }
1540 }
1541
1542 /***************************************
1543 *
1544 * I/O access between 0x3d4-0x3d5
1545 *
1546 ***************************************/
1547
1548 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1549 {
1550 switch (reg_index) {
1551 case 0x00: // Standard VGA
1552 case 0x01: // Standard VGA
1553 case 0x02: // Standard VGA
1554 case 0x03: // Standard VGA
1555 case 0x04: // Standard VGA
1556 case 0x05: // Standard VGA
1557 case 0x06: // Standard VGA
1558 case 0x07: // Standard VGA
1559 case 0x08: // Standard VGA
1560 case 0x09: // Standard VGA
1561 case 0x0a: // Standard VGA
1562 case 0x0b: // Standard VGA
1563 case 0x0c: // Standard VGA
1564 case 0x0d: // Standard VGA
1565 case 0x0e: // Standard VGA
1566 case 0x0f: // Standard VGA
1567 case 0x10: // Standard VGA
1568 case 0x11: // Standard VGA
1569 case 0x12: // Standard VGA
1570 case 0x13: // Standard VGA
1571 case 0x14: // Standard VGA
1572 case 0x15: // Standard VGA
1573 case 0x16: // Standard VGA
1574 case 0x17: // Standard VGA
1575 case 0x18: // Standard VGA
1576 return s->vga.cr[s->vga.cr_index];
1577 case 0x24: // Attribute Controller Toggle Readback (R)
1578 return (s->vga.ar_flip_flop << 7);
1579 case 0x19: // Interlace End
1580 case 0x1a: // Miscellaneous Control
1581 case 0x1b: // Extended Display Control
1582 case 0x1c: // Sync Adjust and Genlock
1583 case 0x1d: // Overlay Extended Control
1584 case 0x22: // Graphics Data Latches Readback (R)
1585 case 0x25: // Part Status
1586 case 0x27: // Part ID (R)
1587 return s->vga.cr[s->vga.cr_index];
1588 case 0x26: // Attribute Controller Index Readback (R)
1589 return s->vga.ar_index & 0x3f;
1590 break;
1591 default:
1592 #ifdef DEBUG_CIRRUS
1593 printf("cirrus: inport cr_index %02x\n", reg_index);
1594 #endif
1595 return 0xff;
1596 }
1597 }
1598
1599 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1600 {
1601 switch (s->vga.cr_index) {
1602 case 0x00: // Standard VGA
1603 case 0x01: // Standard VGA
1604 case 0x02: // Standard VGA
1605 case 0x03: // Standard VGA
1606 case 0x04: // Standard VGA
1607 case 0x05: // Standard VGA
1608 case 0x06: // Standard VGA
1609 case 0x07: // Standard VGA
1610 case 0x08: // Standard VGA
1611 case 0x09: // Standard VGA
1612 case 0x0a: // Standard VGA
1613 case 0x0b: // Standard VGA
1614 case 0x0c: // Standard VGA
1615 case 0x0d: // Standard VGA
1616 case 0x0e: // Standard VGA
1617 case 0x0f: // Standard VGA
1618 case 0x10: // Standard VGA
1619 case 0x11: // Standard VGA
1620 case 0x12: // Standard VGA
1621 case 0x13: // Standard VGA
1622 case 0x14: // Standard VGA
1623 case 0x15: // Standard VGA
1624 case 0x16: // Standard VGA
1625 case 0x17: // Standard VGA
1626 case 0x18: // Standard VGA
1627 /* handle CR0-7 protection */
1628 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1629 /* can always write bit 4 of CR7 */
1630 if (s->vga.cr_index == 7)
1631 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1632 return;
1633 }
1634 s->vga.cr[s->vga.cr_index] = reg_value;
1635 switch(s->vga.cr_index) {
1636 case 0x00:
1637 case 0x04:
1638 case 0x05:
1639 case 0x06:
1640 case 0x07:
1641 case 0x11:
1642 case 0x17:
1643 s->vga.update_retrace_info(&s->vga);
1644 break;
1645 }
1646 break;
1647 case 0x19: // Interlace End
1648 case 0x1a: // Miscellaneous Control
1649 case 0x1b: // Extended Display Control
1650 case 0x1c: // Sync Adjust and Genlock
1651 case 0x1d: // Overlay Extended Control
1652 s->vga.cr[s->vga.cr_index] = reg_value;
1653 #ifdef DEBUG_CIRRUS
1654 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1655 s->vga.cr_index, reg_value);
1656 #endif
1657 break;
1658 case 0x22: // Graphics Data Latches Readback (R)
1659 case 0x24: // Attribute Controller Toggle Readback (R)
1660 case 0x26: // Attribute Controller Index Readback (R)
1661 case 0x27: // Part ID (R)
1662 break;
1663 case 0x25: // Part Status
1664 default:
1665 #ifdef DEBUG_CIRRUS
1666 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1667 s->vga.cr_index, reg_value);
1668 #endif
1669 break;
1670 }
1671 }
1672
1673 /***************************************
1674 *
1675 * memory-mapped I/O (bitblt)
1676 *
1677 ***************************************/
1678
1679 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1680 {
1681 int value = 0xff;
1682
1683 switch (address) {
1684 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1685 value = cirrus_vga_read_gr(s, 0x00);
1686 break;
1687 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1688 value = cirrus_vga_read_gr(s, 0x10);
1689 break;
1690 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1691 value = cirrus_vga_read_gr(s, 0x12);
1692 break;
1693 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1694 value = cirrus_vga_read_gr(s, 0x14);
1695 break;
1696 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1697 value = cirrus_vga_read_gr(s, 0x01);
1698 break;
1699 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1700 value = cirrus_vga_read_gr(s, 0x11);
1701 break;
1702 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1703 value = cirrus_vga_read_gr(s, 0x13);
1704 break;
1705 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1706 value = cirrus_vga_read_gr(s, 0x15);
1707 break;
1708 case (CIRRUS_MMIO_BLTWIDTH + 0):
1709 value = cirrus_vga_read_gr(s, 0x20);
1710 break;
1711 case (CIRRUS_MMIO_BLTWIDTH + 1):
1712 value = cirrus_vga_read_gr(s, 0x21);
1713 break;
1714 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1715 value = cirrus_vga_read_gr(s, 0x22);
1716 break;
1717 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1718 value = cirrus_vga_read_gr(s, 0x23);
1719 break;
1720 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1721 value = cirrus_vga_read_gr(s, 0x24);
1722 break;
1723 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1724 value = cirrus_vga_read_gr(s, 0x25);
1725 break;
1726 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1727 value = cirrus_vga_read_gr(s, 0x26);
1728 break;
1729 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1730 value = cirrus_vga_read_gr(s, 0x27);
1731 break;
1732 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1733 value = cirrus_vga_read_gr(s, 0x28);
1734 break;
1735 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1736 value = cirrus_vga_read_gr(s, 0x29);
1737 break;
1738 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1739 value = cirrus_vga_read_gr(s, 0x2a);
1740 break;
1741 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1742 value = cirrus_vga_read_gr(s, 0x2c);
1743 break;
1744 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1745 value = cirrus_vga_read_gr(s, 0x2d);
1746 break;
1747 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1748 value = cirrus_vga_read_gr(s, 0x2e);
1749 break;
1750 case CIRRUS_MMIO_BLTWRITEMASK:
1751 value = cirrus_vga_read_gr(s, 0x2f);
1752 break;
1753 case CIRRUS_MMIO_BLTMODE:
1754 value = cirrus_vga_read_gr(s, 0x30);
1755 break;
1756 case CIRRUS_MMIO_BLTROP:
1757 value = cirrus_vga_read_gr(s, 0x32);
1758 break;
1759 case CIRRUS_MMIO_BLTMODEEXT:
1760 value = cirrus_vga_read_gr(s, 0x33);
1761 break;
1762 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1763 value = cirrus_vga_read_gr(s, 0x34);
1764 break;
1765 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1766 value = cirrus_vga_read_gr(s, 0x35);
1767 break;
1768 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1769 value = cirrus_vga_read_gr(s, 0x38);
1770 break;
1771 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1772 value = cirrus_vga_read_gr(s, 0x39);
1773 break;
1774 case CIRRUS_MMIO_BLTSTATUS:
1775 value = cirrus_vga_read_gr(s, 0x31);
1776 break;
1777 default:
1778 #ifdef DEBUG_CIRRUS
1779 printf("cirrus: mmio read - address 0x%04x\n", address);
1780 #endif
1781 break;
1782 }
1783
1784 return (uint8_t) value;
1785 }
1786
1787 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1788 uint8_t value)
1789 {
1790 switch (address) {
1791 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1792 cirrus_vga_write_gr(s, 0x00, value);
1793 break;
1794 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1795 cirrus_vga_write_gr(s, 0x10, value);
1796 break;
1797 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1798 cirrus_vga_write_gr(s, 0x12, value);
1799 break;
1800 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1801 cirrus_vga_write_gr(s, 0x14, value);
1802 break;
1803 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1804 cirrus_vga_write_gr(s, 0x01, value);
1805 break;
1806 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1807 cirrus_vga_write_gr(s, 0x11, value);
1808 break;
1809 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1810 cirrus_vga_write_gr(s, 0x13, value);
1811 break;
1812 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1813 cirrus_vga_write_gr(s, 0x15, value);
1814 break;
1815 case (CIRRUS_MMIO_BLTWIDTH + 0):
1816 cirrus_vga_write_gr(s, 0x20, value);
1817 break;
1818 case (CIRRUS_MMIO_BLTWIDTH + 1):
1819 cirrus_vga_write_gr(s, 0x21, value);
1820 break;
1821 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1822 cirrus_vga_write_gr(s, 0x22, value);
1823 break;
1824 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1825 cirrus_vga_write_gr(s, 0x23, value);
1826 break;
1827 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1828 cirrus_vga_write_gr(s, 0x24, value);
1829 break;
1830 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1831 cirrus_vga_write_gr(s, 0x25, value);
1832 break;
1833 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1834 cirrus_vga_write_gr(s, 0x26, value);
1835 break;
1836 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1837 cirrus_vga_write_gr(s, 0x27, value);
1838 break;
1839 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1840 cirrus_vga_write_gr(s, 0x28, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1843 cirrus_vga_write_gr(s, 0x29, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1846 cirrus_vga_write_gr(s, 0x2a, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1849 /* ignored */
1850 break;
1851 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1852 cirrus_vga_write_gr(s, 0x2c, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1855 cirrus_vga_write_gr(s, 0x2d, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1858 cirrus_vga_write_gr(s, 0x2e, value);
1859 break;
1860 case CIRRUS_MMIO_BLTWRITEMASK:
1861 cirrus_vga_write_gr(s, 0x2f, value);
1862 break;
1863 case CIRRUS_MMIO_BLTMODE:
1864 cirrus_vga_write_gr(s, 0x30, value);
1865 break;
1866 case CIRRUS_MMIO_BLTROP:
1867 cirrus_vga_write_gr(s, 0x32, value);
1868 break;
1869 case CIRRUS_MMIO_BLTMODEEXT:
1870 cirrus_vga_write_gr(s, 0x33, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1873 cirrus_vga_write_gr(s, 0x34, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1876 cirrus_vga_write_gr(s, 0x35, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1879 cirrus_vga_write_gr(s, 0x38, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1882 cirrus_vga_write_gr(s, 0x39, value);
1883 break;
1884 case CIRRUS_MMIO_BLTSTATUS:
1885 cirrus_vga_write_gr(s, 0x31, value);
1886 break;
1887 default:
1888 #ifdef DEBUG_CIRRUS
1889 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1890 address, value);
1891 #endif
1892 break;
1893 }
1894 }
1895
1896 /***************************************
1897 *
1898 * write mode 4/5
1899 *
1900 ***************************************/
1901
1902 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1903 unsigned mode,
1904 unsigned offset,
1905 uint32_t mem_value)
1906 {
1907 int x;
1908 unsigned val = mem_value;
1909 uint8_t *dst;
1910
1911 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1912 for (x = 0; x < 8; x++) {
1913 if (val & 0x80) {
1914 *dst = s->cirrus_shadow_gr1;
1915 } else if (mode == 5) {
1916 *dst = s->cirrus_shadow_gr0;
1917 }
1918 val <<= 1;
1919 dst++;
1920 }
1921 memory_region_set_dirty(&s->vga.vram, offset, 8);
1922 }
1923
1924 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1925 unsigned mode,
1926 unsigned offset,
1927 uint32_t mem_value)
1928 {
1929 int x;
1930 unsigned val = mem_value;
1931 uint8_t *dst;
1932
1933 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1934 for (x = 0; x < 8; x++) {
1935 if (val & 0x80) {
1936 *dst = s->cirrus_shadow_gr1;
1937 *(dst + 1) = s->vga.gr[0x11];
1938 } else if (mode == 5) {
1939 *dst = s->cirrus_shadow_gr0;
1940 *(dst + 1) = s->vga.gr[0x10];
1941 }
1942 val <<= 1;
1943 dst += 2;
1944 }
1945 memory_region_set_dirty(&s->vga.vram, offset, 16);
1946 }
1947
1948 /***************************************
1949 *
1950 * memory access between 0xa0000-0xbffff
1951 *
1952 ***************************************/
1953
1954 static uint64_t cirrus_vga_mem_read(void *opaque,
1955 target_phys_addr_t addr,
1956 uint32_t size)
1957 {
1958 CirrusVGAState *s = opaque;
1959 unsigned bank_index;
1960 unsigned bank_offset;
1961 uint32_t val;
1962
1963 if ((s->vga.sr[0x07] & 0x01) == 0) {
1964 return vga_mem_readb(&s->vga, addr);
1965 }
1966
1967 if (addr < 0x10000) {
1968 /* XXX handle bitblt */
1969 /* video memory */
1970 bank_index = addr >> 15;
1971 bank_offset = addr & 0x7fff;
1972 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1973 bank_offset += s->cirrus_bank_base[bank_index];
1974 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
1975 bank_offset <<= 4;
1976 } else if (s->vga.gr[0x0B] & 0x02) {
1977 bank_offset <<= 3;
1978 }
1979 bank_offset &= s->cirrus_addr_mask;
1980 val = *(s->vga.vram_ptr + bank_offset);
1981 } else
1982 val = 0xff;
1983 } else if (addr >= 0x18000 && addr < 0x18100) {
1984 /* memory-mapped I/O */
1985 val = 0xff;
1986 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
1987 val = cirrus_mmio_blt_read(s, addr & 0xff);
1988 }
1989 } else {
1990 val = 0xff;
1991 #ifdef DEBUG_CIRRUS
1992 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
1993 #endif
1994 }
1995 return val;
1996 }
1997
1998 static void cirrus_vga_mem_write(void *opaque,
1999 target_phys_addr_t addr,
2000 uint64_t mem_value,
2001 uint32_t size)
2002 {
2003 CirrusVGAState *s = opaque;
2004 unsigned bank_index;
2005 unsigned bank_offset;
2006 unsigned mode;
2007
2008 if ((s->vga.sr[0x07] & 0x01) == 0) {
2009 vga_mem_writeb(&s->vga, addr, mem_value);
2010 return;
2011 }
2012
2013 if (addr < 0x10000) {
2014 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2015 /* bitblt */
2016 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2017 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2018 cirrus_bitblt_cputovideo_next(s);
2019 }
2020 } else {
2021 /* video memory */
2022 bank_index = addr >> 15;
2023 bank_offset = addr & 0x7fff;
2024 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2025 bank_offset += s->cirrus_bank_base[bank_index];
2026 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2027 bank_offset <<= 4;
2028 } else if (s->vga.gr[0x0B] & 0x02) {
2029 bank_offset <<= 3;
2030 }
2031 bank_offset &= s->cirrus_addr_mask;
2032 mode = s->vga.gr[0x05] & 0x7;
2033 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2034 *(s->vga.vram_ptr + bank_offset) = mem_value;
2035 memory_region_set_dirty(&s->vga.vram, bank_offset,
2036 sizeof(mem_value));
2037 } else {
2038 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2039 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2040 bank_offset,
2041 mem_value);
2042 } else {
2043 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2044 bank_offset,
2045 mem_value);
2046 }
2047 }
2048 }
2049 }
2050 } else if (addr >= 0x18000 && addr < 0x18100) {
2051 /* memory-mapped I/O */
2052 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2053 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2054 }
2055 } else {
2056 #ifdef DEBUG_CIRRUS
2057 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2058 mem_value);
2059 #endif
2060 }
2061 }
2062
2063 static const MemoryRegionOps cirrus_vga_mem_ops = {
2064 .read = cirrus_vga_mem_read,
2065 .write = cirrus_vga_mem_write,
2066 .endianness = DEVICE_LITTLE_ENDIAN,
2067 .impl = {
2068 .min_access_size = 1,
2069 .max_access_size = 1,
2070 },
2071 };
2072
2073 /***************************************
2074 *
2075 * hardware cursor
2076 *
2077 ***************************************/
2078
2079 static inline void invalidate_cursor1(CirrusVGAState *s)
2080 {
2081 if (s->last_hw_cursor_size) {
2082 vga_invalidate_scanlines(&s->vga,
2083 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2084 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2085 }
2086 }
2087
2088 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2089 {
2090 const uint8_t *src;
2091 uint32_t content;
2092 int y, y_min, y_max;
2093
2094 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2095 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2096 src += (s->vga.sr[0x13] & 0x3c) * 256;
2097 y_min = 64;
2098 y_max = -1;
2099 for(y = 0; y < 64; y++) {
2100 content = ((uint32_t *)src)[0] |
2101 ((uint32_t *)src)[1] |
2102 ((uint32_t *)src)[2] |
2103 ((uint32_t *)src)[3];
2104 if (content) {
2105 if (y < y_min)
2106 y_min = y;
2107 if (y > y_max)
2108 y_max = y;
2109 }
2110 src += 16;
2111 }
2112 } else {
2113 src += (s->vga.sr[0x13] & 0x3f) * 256;
2114 y_min = 32;
2115 y_max = -1;
2116 for(y = 0; y < 32; y++) {
2117 content = ((uint32_t *)src)[0] |
2118 ((uint32_t *)(src + 128))[0];
2119 if (content) {
2120 if (y < y_min)
2121 y_min = y;
2122 if (y > y_max)
2123 y_max = y;
2124 }
2125 src += 4;
2126 }
2127 }
2128 if (y_min > y_max) {
2129 s->last_hw_cursor_y_start = 0;
2130 s->last_hw_cursor_y_end = 0;
2131 } else {
2132 s->last_hw_cursor_y_start = y_min;
2133 s->last_hw_cursor_y_end = y_max + 1;
2134 }
2135 }
2136
2137 /* NOTE: we do not currently handle the cursor bitmap change, so we
2138 update the cursor only if it moves. */
2139 static void cirrus_cursor_invalidate(VGACommonState *s1)
2140 {
2141 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2142 int size;
2143
2144 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2145 size = 0;
2146 } else {
2147 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2148 size = 64;
2149 else
2150 size = 32;
2151 }
2152 /* invalidate last cursor and new cursor if any change */
2153 if (s->last_hw_cursor_size != size ||
2154 s->last_hw_cursor_x != s->hw_cursor_x ||
2155 s->last_hw_cursor_y != s->hw_cursor_y) {
2156
2157 invalidate_cursor1(s);
2158
2159 s->last_hw_cursor_size = size;
2160 s->last_hw_cursor_x = s->hw_cursor_x;
2161 s->last_hw_cursor_y = s->hw_cursor_y;
2162 /* compute the real cursor min and max y */
2163 cirrus_cursor_compute_yrange(s);
2164 invalidate_cursor1(s);
2165 }
2166 }
2167
2168 #define DEPTH 8
2169 #include "cirrus_vga_template.h"
2170
2171 #define DEPTH 16
2172 #include "cirrus_vga_template.h"
2173
2174 #define DEPTH 32
2175 #include "cirrus_vga_template.h"
2176
2177 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2178 {
2179 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2180 int w, h, bpp, x1, x2, poffset;
2181 unsigned int color0, color1;
2182 const uint8_t *palette, *src;
2183 uint32_t content;
2184
2185 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2186 return;
2187 /* fast test to see if the cursor intersects with the scan line */
2188 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2189 h = 64;
2190 } else {
2191 h = 32;
2192 }
2193 if (scr_y < s->hw_cursor_y ||
2194 scr_y >= (s->hw_cursor_y + h))
2195 return;
2196
2197 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2198 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2199 src += (s->vga.sr[0x13] & 0x3c) * 256;
2200 src += (scr_y - s->hw_cursor_y) * 16;
2201 poffset = 8;
2202 content = ((uint32_t *)src)[0] |
2203 ((uint32_t *)src)[1] |
2204 ((uint32_t *)src)[2] |
2205 ((uint32_t *)src)[3];
2206 } else {
2207 src += (s->vga.sr[0x13] & 0x3f) * 256;
2208 src += (scr_y - s->hw_cursor_y) * 4;
2209 poffset = 128;
2210 content = ((uint32_t *)src)[0] |
2211 ((uint32_t *)(src + 128))[0];
2212 }
2213 /* if nothing to draw, no need to continue */
2214 if (!content)
2215 return;
2216 w = h;
2217
2218 x1 = s->hw_cursor_x;
2219 if (x1 >= s->vga.last_scr_width)
2220 return;
2221 x2 = s->hw_cursor_x + w;
2222 if (x2 > s->vga.last_scr_width)
2223 x2 = s->vga.last_scr_width;
2224 w = x2 - x1;
2225 palette = s->cirrus_hidden_palette;
2226 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2227 c6_to_8(palette[0x0 * 3 + 1]),
2228 c6_to_8(palette[0x0 * 3 + 2]));
2229 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2230 c6_to_8(palette[0xf * 3 + 1]),
2231 c6_to_8(palette[0xf * 3 + 2]));
2232 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2233 d1 += x1 * bpp;
2234 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2235 default:
2236 break;
2237 case 8:
2238 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2239 break;
2240 case 15:
2241 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2242 break;
2243 case 16:
2244 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2245 break;
2246 case 32:
2247 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2248 break;
2249 }
2250 }
2251
2252 /***************************************
2253 *
2254 * LFB memory access
2255 *
2256 ***************************************/
2257
2258 static uint64_t cirrus_linear_read(void *opaque, target_phys_addr_t addr,
2259 unsigned size)
2260 {
2261 CirrusVGAState *s = opaque;
2262 uint32_t ret;
2263
2264 addr &= s->cirrus_addr_mask;
2265
2266 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2267 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2268 /* memory-mapped I/O */
2269 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2270 } else if (0) {
2271 /* XXX handle bitblt */
2272 ret = 0xff;
2273 } else {
2274 /* video memory */
2275 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2276 addr <<= 4;
2277 } else if (s->vga.gr[0x0B] & 0x02) {
2278 addr <<= 3;
2279 }
2280 addr &= s->cirrus_addr_mask;
2281 ret = *(s->vga.vram_ptr + addr);
2282 }
2283
2284 return ret;
2285 }
2286
2287 static void cirrus_linear_write(void *opaque, target_phys_addr_t addr,
2288 uint64_t val, unsigned size)
2289 {
2290 CirrusVGAState *s = opaque;
2291 unsigned mode;
2292
2293 addr &= s->cirrus_addr_mask;
2294
2295 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2296 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2297 /* memory-mapped I/O */
2298 cirrus_mmio_blt_write(s, addr & 0xff, val);
2299 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2300 /* bitblt */
2301 *s->cirrus_srcptr++ = (uint8_t) val;
2302 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2303 cirrus_bitblt_cputovideo_next(s);
2304 }
2305 } else {
2306 /* video memory */
2307 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2308 addr <<= 4;
2309 } else if (s->vga.gr[0x0B] & 0x02) {
2310 addr <<= 3;
2311 }
2312 addr &= s->cirrus_addr_mask;
2313
2314 mode = s->vga.gr[0x05] & 0x7;
2315 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2316 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2317 memory_region_set_dirty(&s->vga.vram, addr, 1);
2318 } else {
2319 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2320 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2321 } else {
2322 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2323 }
2324 }
2325 }
2326 }
2327
2328 /***************************************
2329 *
2330 * system to screen memory access
2331 *
2332 ***************************************/
2333
2334
2335 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2336 target_phys_addr_t addr,
2337 unsigned size)
2338 {
2339 CirrusVGAState *s = opaque;
2340 uint32_t ret;
2341
2342 /* XXX handle bitblt */
2343 (void)s;
2344 ret = 0xff;
2345 return ret;
2346 }
2347
2348 static void cirrus_linear_bitblt_write(void *opaque,
2349 target_phys_addr_t addr,
2350 uint64_t val,
2351 unsigned size)
2352 {
2353 CirrusVGAState *s = opaque;
2354
2355 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2356 /* bitblt */
2357 *s->cirrus_srcptr++ = (uint8_t) val;
2358 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2359 cirrus_bitblt_cputovideo_next(s);
2360 }
2361 }
2362 }
2363
2364 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2365 .read = cirrus_linear_bitblt_read,
2366 .write = cirrus_linear_bitblt_write,
2367 .endianness = DEVICE_LITTLE_ENDIAN,
2368 .impl = {
2369 .min_access_size = 1,
2370 .max_access_size = 1,
2371 },
2372 };
2373
2374 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2375 {
2376 MemoryRegion *mr = &s->cirrus_bank[bank];
2377 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2378 && !((s->vga.sr[0x07] & 0x01) == 0)
2379 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2380 && !(s->vga.gr[0x0B] & 0x02);
2381
2382 memory_region_set_enabled(mr, enabled);
2383 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2384 }
2385
2386 static void map_linear_vram(CirrusVGAState *s)
2387 {
2388 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2389 s->linear_vram = true;
2390 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2391 }
2392 map_linear_vram_bank(s, 0);
2393 map_linear_vram_bank(s, 1);
2394 }
2395
2396 static void unmap_linear_vram(CirrusVGAState *s)
2397 {
2398 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2399 s->linear_vram = false;
2400 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2401 }
2402 memory_region_set_enabled(&s->cirrus_bank[0], false);
2403 memory_region_set_enabled(&s->cirrus_bank[1], false);
2404 }
2405
2406 /* Compute the memory access functions */
2407 static void cirrus_update_memory_access(CirrusVGAState *s)
2408 {
2409 unsigned mode;
2410
2411 memory_region_transaction_begin();
2412 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2413 goto generic_io;
2414 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2415 goto generic_io;
2416 } else {
2417 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2418 goto generic_io;
2419 } else if (s->vga.gr[0x0B] & 0x02) {
2420 goto generic_io;
2421 }
2422
2423 mode = s->vga.gr[0x05] & 0x7;
2424 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2425 map_linear_vram(s);
2426 } else {
2427 generic_io:
2428 unmap_linear_vram(s);
2429 }
2430 }
2431 memory_region_transaction_commit();
2432 }
2433
2434
2435 /* I/O ports */
2436
2437 static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
2438 {
2439 CirrusVGAState *c = opaque;
2440 VGACommonState *s = &c->vga;
2441 int val, index;
2442
2443 qemu_flush_coalesced_mmio_buffer();
2444
2445 if (vga_ioport_invalid(s, addr)) {
2446 val = 0xff;
2447 } else {
2448 switch (addr) {
2449 case 0x3c0:
2450 if (s->ar_flip_flop == 0) {
2451 val = s->ar_index;
2452 } else {
2453 val = 0;
2454 }
2455 break;
2456 case 0x3c1:
2457 index = s->ar_index & 0x1f;
2458 if (index < 21)
2459 val = s->ar[index];
2460 else
2461 val = 0;
2462 break;
2463 case 0x3c2:
2464 val = s->st00;
2465 break;
2466 case 0x3c4:
2467 val = s->sr_index;
2468 break;
2469 case 0x3c5:
2470 val = cirrus_vga_read_sr(c);
2471 break;
2472 #ifdef DEBUG_VGA_REG
2473 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2474 #endif
2475 break;
2476 case 0x3c6:
2477 val = cirrus_read_hidden_dac(c);
2478 break;
2479 case 0x3c7:
2480 val = s->dac_state;
2481 break;
2482 case 0x3c8:
2483 val = s->dac_write_index;
2484 c->cirrus_hidden_dac_lockindex = 0;
2485 break;
2486 case 0x3c9:
2487 val = cirrus_vga_read_palette(c);
2488 break;
2489 case 0x3ca:
2490 val = s->fcr;
2491 break;
2492 case 0x3cc:
2493 val = s->msr;
2494 break;
2495 case 0x3ce:
2496 val = s->gr_index;
2497 break;
2498 case 0x3cf:
2499 val = cirrus_vga_read_gr(c, s->gr_index);
2500 #ifdef DEBUG_VGA_REG
2501 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2502 #endif
2503 break;
2504 case 0x3b4:
2505 case 0x3d4:
2506 val = s->cr_index;
2507 break;
2508 case 0x3b5:
2509 case 0x3d5:
2510 val = cirrus_vga_read_cr(c, s->cr_index);
2511 #ifdef DEBUG_VGA_REG
2512 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2513 #endif
2514 break;
2515 case 0x3ba:
2516 case 0x3da:
2517 /* just toggle to fool polling */
2518 val = s->st01 = s->retrace(s);
2519 s->ar_flip_flop = 0;
2520 break;
2521 default:
2522 val = 0x00;
2523 break;
2524 }
2525 }
2526 #if defined(DEBUG_VGA)
2527 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2528 #endif
2529 return val;
2530 }
2531
2532 static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2533 {
2534 CirrusVGAState *c = opaque;
2535 VGACommonState *s = &c->vga;
2536 int index;
2537
2538 qemu_flush_coalesced_mmio_buffer();
2539
2540 /* check port range access depending on color/monochrome mode */
2541 if (vga_ioport_invalid(s, addr)) {
2542 return;
2543 }
2544 #ifdef DEBUG_VGA
2545 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2546 #endif
2547
2548 switch (addr) {
2549 case 0x3c0:
2550 if (s->ar_flip_flop == 0) {
2551 val &= 0x3f;
2552 s->ar_index = val;
2553 } else {
2554 index = s->ar_index & 0x1f;
2555 switch (index) {
2556 case 0x00 ... 0x0f:
2557 s->ar[index] = val & 0x3f;
2558 break;
2559 case 0x10:
2560 s->ar[index] = val & ~0x10;
2561 break;
2562 case 0x11:
2563 s->ar[index] = val;
2564 break;
2565 case 0x12:
2566 s->ar[index] = val & ~0xc0;
2567 break;
2568 case 0x13:
2569 s->ar[index] = val & ~0xf0;
2570 break;
2571 case 0x14:
2572 s->ar[index] = val & ~0xf0;
2573 break;
2574 default:
2575 break;
2576 }
2577 }
2578 s->ar_flip_flop ^= 1;
2579 break;
2580 case 0x3c2:
2581 s->msr = val & ~0x10;
2582 s->update_retrace_info(s);
2583 break;
2584 case 0x3c4:
2585 s->sr_index = val;
2586 break;
2587 case 0x3c5:
2588 #ifdef DEBUG_VGA_REG
2589 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2590 #endif
2591 cirrus_vga_write_sr(c, val);
2592 break;
2593 break;
2594 case 0x3c6:
2595 cirrus_write_hidden_dac(c, val);
2596 break;
2597 case 0x3c7:
2598 s->dac_read_index = val;
2599 s->dac_sub_index = 0;
2600 s->dac_state = 3;
2601 break;
2602 case 0x3c8:
2603 s->dac_write_index = val;
2604 s->dac_sub_index = 0;
2605 s->dac_state = 0;
2606 break;
2607 case 0x3c9:
2608 cirrus_vga_write_palette(c, val);
2609 break;
2610 case 0x3ce:
2611 s->gr_index = val;
2612 break;
2613 case 0x3cf:
2614 #ifdef DEBUG_VGA_REG
2615 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2616 #endif
2617 cirrus_vga_write_gr(c, s->gr_index, val);
2618 break;
2619 case 0x3b4:
2620 case 0x3d4:
2621 s->cr_index = val;
2622 break;
2623 case 0x3b5:
2624 case 0x3d5:
2625 #ifdef DEBUG_VGA_REG
2626 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2627 #endif
2628 cirrus_vga_write_cr(c, val);
2629 break;
2630 case 0x3ba:
2631 case 0x3da:
2632 s->fcr = val & 0x10;
2633 break;
2634 }
2635 }
2636
2637 /***************************************
2638 *
2639 * memory-mapped I/O access
2640 *
2641 ***************************************/
2642
2643 static uint64_t cirrus_mmio_read(void *opaque, target_phys_addr_t addr,
2644 unsigned size)
2645 {
2646 CirrusVGAState *s = opaque;
2647
2648 if (addr >= 0x100) {
2649 return cirrus_mmio_blt_read(s, addr - 0x100);
2650 } else {
2651 return cirrus_vga_ioport_read(s, addr + 0x3c0);
2652 }
2653 }
2654
2655 static void cirrus_mmio_write(void *opaque, target_phys_addr_t addr,
2656 uint64_t val, unsigned size)
2657 {
2658 CirrusVGAState *s = opaque;
2659
2660 if (addr >= 0x100) {
2661 cirrus_mmio_blt_write(s, addr - 0x100, val);
2662 } else {
2663 cirrus_vga_ioport_write(s, addr + 0x3c0, val);
2664 }
2665 }
2666
2667 static const MemoryRegionOps cirrus_mmio_io_ops = {
2668 .read = cirrus_mmio_read,
2669 .write = cirrus_mmio_write,
2670 .endianness = DEVICE_LITTLE_ENDIAN,
2671 .impl = {
2672 .min_access_size = 1,
2673 .max_access_size = 1,
2674 },
2675 };
2676
2677 /* load/save state */
2678
2679 static int cirrus_post_load(void *opaque, int version_id)
2680 {
2681 CirrusVGAState *s = opaque;
2682
2683 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2684 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2685
2686 cirrus_update_memory_access(s);
2687 /* force refresh */
2688 s->vga.graphic_mode = -1;
2689 cirrus_update_bank_ptr(s, 0);
2690 cirrus_update_bank_ptr(s, 1);
2691 return 0;
2692 }
2693
2694 static const VMStateDescription vmstate_cirrus_vga = {
2695 .name = "cirrus_vga",
2696 .version_id = 2,
2697 .minimum_version_id = 1,
2698 .minimum_version_id_old = 1,
2699 .post_load = cirrus_post_load,
2700 .fields = (VMStateField []) {
2701 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2702 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2703 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2704 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2705 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2706 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2707 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2708 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2709 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2710 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2711 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2712 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2713 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2714 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2715 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2716 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2717 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2718 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2719 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2720 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2721 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2722 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2723 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2724 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2725 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2726 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
2727 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
2728 /* XXX: we do not save the bitblt state - we assume we do not save
2729 the state when the blitter is active */
2730 VMSTATE_END_OF_LIST()
2731 }
2732 };
2733
2734 static const VMStateDescription vmstate_pci_cirrus_vga = {
2735 .name = "cirrus_vga",
2736 .version_id = 2,
2737 .minimum_version_id = 2,
2738 .minimum_version_id_old = 2,
2739 .fields = (VMStateField []) {
2740 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2741 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2742 vmstate_cirrus_vga, CirrusVGAState),
2743 VMSTATE_END_OF_LIST()
2744 }
2745 };
2746
2747 /***************************************
2748 *
2749 * initialize
2750 *
2751 ***************************************/
2752
2753 static void cirrus_reset(void *opaque)
2754 {
2755 CirrusVGAState *s = opaque;
2756
2757 vga_common_reset(&s->vga);
2758 unmap_linear_vram(s);
2759 s->vga.sr[0x06] = 0x0f;
2760 if (s->device_id == CIRRUS_ID_CLGD5446) {
2761 /* 4MB 64 bit memory config, always PCI */
2762 s->vga.sr[0x1F] = 0x2d; // MemClock
2763 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2764 s->vga.sr[0x0f] = 0x98;
2765 s->vga.sr[0x17] = 0x20;
2766 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2767 } else {
2768 s->vga.sr[0x1F] = 0x22; // MemClock
2769 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2770 s->vga.sr[0x17] = s->bustype;
2771 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2772 }
2773 s->vga.cr[0x27] = s->device_id;
2774
2775 s->cirrus_hidden_dac_lockindex = 5;
2776 s->cirrus_hidden_dac_data = 0;
2777 }
2778
2779 static const MemoryRegionOps cirrus_linear_io_ops = {
2780 .read = cirrus_linear_read,
2781 .write = cirrus_linear_write,
2782 .endianness = DEVICE_LITTLE_ENDIAN,
2783 .impl = {
2784 .min_access_size = 1,
2785 .max_access_size = 1,
2786 },
2787 };
2788
2789 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci,
2790 MemoryRegion *system_memory)
2791 {
2792 int i;
2793 static int inited;
2794
2795 if (!inited) {
2796 inited = 1;
2797 for(i = 0;i < 256; i++)
2798 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2799 rop_to_index[CIRRUS_ROP_0] = 0;
2800 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2801 rop_to_index[CIRRUS_ROP_NOP] = 2;
2802 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2803 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2804 rop_to_index[CIRRUS_ROP_SRC] = 5;
2805 rop_to_index[CIRRUS_ROP_1] = 6;
2806 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2807 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2808 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2809 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2810 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2811 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2812 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2813 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2814 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2815 s->device_id = device_id;
2816 if (is_pci)
2817 s->bustype = CIRRUS_BUSTYPE_PCI;
2818 else
2819 s->bustype = CIRRUS_BUSTYPE_ISA;
2820 }
2821
2822 register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
2823
2824 register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
2825 register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
2826 register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
2827 register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
2828
2829 register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
2830
2831 register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
2832 register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
2833 register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
2834 register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
2835
2836 memory_region_init(&s->low_mem_container,
2837 "cirrus-lowmem-container",
2838 0x20000);
2839
2840 memory_region_init_io(&s->low_mem, &cirrus_vga_mem_ops, s,
2841 "cirrus-low-memory", 0x20000);
2842 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2843 for (i = 0; i < 2; ++i) {
2844 static const char *names[] = { "vga.bank0", "vga.bank1" };
2845 MemoryRegion *bank = &s->cirrus_bank[i];
2846 memory_region_init_alias(bank, names[i], &s->vga.vram, 0, 0x8000);
2847 memory_region_set_enabled(bank, false);
2848 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2849 bank, 1);
2850 }
2851 memory_region_add_subregion_overlap(system_memory,
2852 isa_mem_base + 0x000a0000,
2853 &s->low_mem_container,
2854 1);
2855 memory_region_set_coalescing(&s->low_mem);
2856
2857 /* I/O handler for LFB */
2858 memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
2859 "cirrus-linear-io", VGA_RAM_SIZE);
2860 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2861
2862 /* I/O handler for LFB */
2863 memory_region_init_io(&s->cirrus_linear_bitblt_io,
2864 &cirrus_linear_bitblt_io_ops,
2865 s,
2866 "cirrus-bitblt-mmio",
2867 0x400000);
2868 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2869
2870 /* I/O handler for memory-mapped I/O */
2871 memory_region_init_io(&s->cirrus_mmio_io, &cirrus_mmio_io_ops, s,
2872 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2873 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2874
2875 s->real_vram_size =
2876 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2877
2878 /* XXX: s->vga.vram_size must be a power of two */
2879 s->cirrus_addr_mask = s->real_vram_size - 1;
2880 s->linear_mmio_mask = s->real_vram_size - 256;
2881
2882 s->vga.get_bpp = cirrus_get_bpp;
2883 s->vga.get_offsets = cirrus_get_offsets;
2884 s->vga.get_resolution = cirrus_get_resolution;
2885 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2886 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2887
2888 qemu_register_reset(cirrus_reset, s);
2889 }
2890
2891 /***************************************
2892 *
2893 * ISA bus support
2894 *
2895 ***************************************/
2896
2897 static int vga_initfn(ISADevice *dev)
2898 {
2899 ISACirrusVGAState *d = DO_UPCAST(ISACirrusVGAState, dev, dev);
2900 VGACommonState *s = &d->cirrus_vga.vga;
2901
2902 s->vram_size_mb = VGA_RAM_SIZE >> 20;
2903 vga_common_init(s);
2904 cirrus_init_common(&d->cirrus_vga, CIRRUS_ID_CLGD5430, 0,
2905 isa_address_space(dev));
2906 s->ds = graphic_console_init(s->update, s->invalidate,
2907 s->screen_dump, s->text_update,
2908 s);
2909 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2910 /* XXX ISA-LFB support */
2911 /* FIXME not qdev yet */
2912 return 0;
2913 }
2914
2915 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
2916 {
2917 ISADeviceClass *k = ISA_DEVICE_CLASS(klass);
2918 DeviceClass *dc = DEVICE_CLASS(klass);
2919
2920 dc->vmsd = &vmstate_cirrus_vga;
2921 k->init = vga_initfn;
2922 }
2923
2924 static TypeInfo isa_cirrus_vga_info = {
2925 .name = "isa-cirrus-vga",
2926 .parent = TYPE_ISA_DEVICE,
2927 .instance_size = sizeof(ISACirrusVGAState),
2928 .class_init = isa_cirrus_vga_class_init,
2929 };
2930
2931 /***************************************
2932 *
2933 * PCI bus support
2934 *
2935 ***************************************/
2936
2937 static int pci_cirrus_vga_initfn(PCIDevice *dev)
2938 {
2939 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
2940 CirrusVGAState *s = &d->cirrus_vga;
2941 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
2942 int16_t device_id = pc->device_id;
2943
2944 /* setup VGA */
2945 s->vga.vram_size_mb = VGA_RAM_SIZE >> 20;
2946 vga_common_init(&s->vga);
2947 cirrus_init_common(s, device_id, 1, pci_address_space(dev));
2948 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
2949 s->vga.screen_dump, s->vga.text_update,
2950 &s->vga);
2951
2952 /* setup PCI */
2953
2954 memory_region_init(&s->pci_bar, "cirrus-pci-bar0", 0x2000000);
2955
2956 /* XXX: add byte swapping apertures */
2957 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2958 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2959 &s->cirrus_linear_bitblt_io);
2960
2961 /* setup memory space */
2962 /* memory #0 LFB */
2963 /* memory #1 memory-mapped I/O */
2964 /* XXX: s->vga.vram_size must be a power of two */
2965 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
2966 if (device_id == CIRRUS_ID_CLGD5446) {
2967 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
2968 }
2969 return 0;
2970 }
2971
2972 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
2973 {
2974 DeviceClass *dc = DEVICE_CLASS(klass);
2975 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2976
2977 k->no_hotplug = 1;
2978 k->init = pci_cirrus_vga_initfn;
2979 k->romfile = VGABIOS_CIRRUS_FILENAME;
2980 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
2981 k->device_id = CIRRUS_ID_CLGD5446;
2982 k->class_id = PCI_CLASS_DISPLAY_VGA;
2983 dc->desc = "Cirrus CLGD 54xx VGA";
2984 dc->vmsd = &vmstate_pci_cirrus_vga;
2985 }
2986
2987 static TypeInfo cirrus_vga_info = {
2988 .name = "cirrus-vga",
2989 .parent = TYPE_PCI_DEVICE,
2990 .instance_size = sizeof(PCICirrusVGAState),
2991 .class_init = cirrus_vga_class_init,
2992 };
2993
2994 static void cirrus_vga_register_types(void)
2995 {
2996 type_register_static(&isa_cirrus_vga_info);
2997 type_register_static(&cirrus_vga_info);
2998 }
2999
3000 type_init(cirrus_vga_register_types)
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