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give some useful error messages when tap open
[qemu.git] / hw / cirrus_vga.c
blobba4828996ab4344f07c06da7979d2d5ecb29ee45
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 "pc.h"
31 #include "pci.h"
32 #include "console.h"
33 #include "vga_int.h"
34 #include "kvm.h"
35 #include "loader.h"
36
37 /*
38 * TODO:
39 * - destination write mask support not complete (bits 5..7)
40 * - optimize linear mappings
41 * - optimize bitblt functions
42 */
43
44 //#define DEBUG_CIRRUS
45 //#define DEBUG_BITBLT
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 ABS(a) ((signed)(a) > 0 ? a : -a)
178
179 #define BLTUNSAFE(s) \
180 ( \
181 ( /* check dst is within bounds */ \
182 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
183 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
184 (s)->vga.vram_size \
185 ) || \
186 ( /* check src is within bounds */ \
187 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
188 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
189 (s)->vga.vram_size \
190 ) \
191 )
192
193 struct CirrusVGAState;
194 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
195 uint8_t * dst, const uint8_t * src,
196 int dstpitch, int srcpitch,
197 int bltwidth, int bltheight);
198 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
199 uint8_t *dst, int dst_pitch, int width, int height);
200
201 typedef struct CirrusVGAState {
202 VGACommonState vga;
203
204 int cirrus_linear_io_addr;
205 int cirrus_linear_bitblt_io_addr;
206 int cirrus_mmio_io_addr;
207 uint32_t cirrus_addr_mask;
208 uint32_t linear_mmio_mask;
209 uint8_t cirrus_shadow_gr0;
210 uint8_t cirrus_shadow_gr1;
211 uint8_t cirrus_hidden_dac_lockindex;
212 uint8_t cirrus_hidden_dac_data;
213 uint32_t cirrus_bank_base[2];
214 uint32_t cirrus_bank_limit[2];
215 uint8_t cirrus_hidden_palette[48];
216 uint32_t hw_cursor_x;
217 uint32_t hw_cursor_y;
218 int cirrus_blt_pixelwidth;
219 int cirrus_blt_width;
220 int cirrus_blt_height;
221 int cirrus_blt_dstpitch;
222 int cirrus_blt_srcpitch;
223 uint32_t cirrus_blt_fgcol;
224 uint32_t cirrus_blt_bgcol;
225 uint32_t cirrus_blt_dstaddr;
226 uint32_t cirrus_blt_srcaddr;
227 uint8_t cirrus_blt_mode;
228 uint8_t cirrus_blt_modeext;
229 cirrus_bitblt_rop_t cirrus_rop;
230 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
231 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
232 uint8_t *cirrus_srcptr;
233 uint8_t *cirrus_srcptr_end;
234 uint32_t cirrus_srccounter;
235 /* hwcursor display state */
236 int last_hw_cursor_size;
237 int last_hw_cursor_x;
238 int last_hw_cursor_y;
239 int last_hw_cursor_y_start;
240 int last_hw_cursor_y_end;
241 int real_vram_size; /* XXX: suppress that */
242 int device_id;
243 int bustype;
244 } CirrusVGAState;
245
246 typedef struct PCICirrusVGAState {
247 PCIDevice dev;
248 CirrusVGAState cirrus_vga;
249 } PCICirrusVGAState;
250
251 static uint8_t rop_to_index[256];
252
253 /***************************************
254 *
255 * prototypes.
256 *
257 ***************************************/
258
259
260 static void cirrus_bitblt_reset(CirrusVGAState *s);
261 static void cirrus_update_memory_access(CirrusVGAState *s);
262
263 /***************************************
264 *
265 * raster operations
266 *
267 ***************************************/
268
269 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
270 uint8_t *dst,const uint8_t *src,
271 int dstpitch,int srcpitch,
272 int bltwidth,int bltheight)
273 {
274 }
275
276 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
277 uint8_t *dst,
278 int dstpitch, int bltwidth,int bltheight)
279 {
280 }
281
282 #define ROP_NAME 0
283 #define ROP_OP(d, s) d = 0
284 #include "cirrus_vga_rop.h"
285
286 #define ROP_NAME src_and_dst
287 #define ROP_OP(d, s) d = (s) & (d)
288 #include "cirrus_vga_rop.h"
289
290 #define ROP_NAME src_and_notdst
291 #define ROP_OP(d, s) d = (s) & (~(d))
292 #include "cirrus_vga_rop.h"
293
294 #define ROP_NAME notdst
295 #define ROP_OP(d, s) d = ~(d)
296 #include "cirrus_vga_rop.h"
297
298 #define ROP_NAME src
299 #define ROP_OP(d, s) d = s
300 #include "cirrus_vga_rop.h"
301
302 #define ROP_NAME 1
303 #define ROP_OP(d, s) d = ~0
304 #include "cirrus_vga_rop.h"
305
306 #define ROP_NAME notsrc_and_dst
307 #define ROP_OP(d, s) d = (~(s)) & (d)
308 #include "cirrus_vga_rop.h"
309
310 #define ROP_NAME src_xor_dst
311 #define ROP_OP(d, s) d = (s) ^ (d)
312 #include "cirrus_vga_rop.h"
313
314 #define ROP_NAME src_or_dst
315 #define ROP_OP(d, s) d = (s) | (d)
316 #include "cirrus_vga_rop.h"
317
318 #define ROP_NAME notsrc_or_notdst
319 #define ROP_OP(d, s) d = (~(s)) | (~(d))
320 #include "cirrus_vga_rop.h"
321
322 #define ROP_NAME src_notxor_dst
323 #define ROP_OP(d, s) d = ~((s) ^ (d))
324 #include "cirrus_vga_rop.h"
325
326 #define ROP_NAME src_or_notdst
327 #define ROP_OP(d, s) d = (s) | (~(d))
328 #include "cirrus_vga_rop.h"
329
330 #define ROP_NAME notsrc
331 #define ROP_OP(d, s) d = (~(s))
332 #include "cirrus_vga_rop.h"
333
334 #define ROP_NAME notsrc_or_dst
335 #define ROP_OP(d, s) d = (~(s)) | (d)
336 #include "cirrus_vga_rop.h"
337
338 #define ROP_NAME notsrc_and_notdst
339 #define ROP_OP(d, s) d = (~(s)) & (~(d))
340 #include "cirrus_vga_rop.h"
341
342 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
343 cirrus_bitblt_rop_fwd_0,
344 cirrus_bitblt_rop_fwd_src_and_dst,
345 cirrus_bitblt_rop_nop,
346 cirrus_bitblt_rop_fwd_src_and_notdst,
347 cirrus_bitblt_rop_fwd_notdst,
348 cirrus_bitblt_rop_fwd_src,
349 cirrus_bitblt_rop_fwd_1,
350 cirrus_bitblt_rop_fwd_notsrc_and_dst,
351 cirrus_bitblt_rop_fwd_src_xor_dst,
352 cirrus_bitblt_rop_fwd_src_or_dst,
353 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
354 cirrus_bitblt_rop_fwd_src_notxor_dst,
355 cirrus_bitblt_rop_fwd_src_or_notdst,
356 cirrus_bitblt_rop_fwd_notsrc,
357 cirrus_bitblt_rop_fwd_notsrc_or_dst,
358 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
359 };
360
361 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
362 cirrus_bitblt_rop_bkwd_0,
363 cirrus_bitblt_rop_bkwd_src_and_dst,
364 cirrus_bitblt_rop_nop,
365 cirrus_bitblt_rop_bkwd_src_and_notdst,
366 cirrus_bitblt_rop_bkwd_notdst,
367 cirrus_bitblt_rop_bkwd_src,
368 cirrus_bitblt_rop_bkwd_1,
369 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
370 cirrus_bitblt_rop_bkwd_src_xor_dst,
371 cirrus_bitblt_rop_bkwd_src_or_dst,
372 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
373 cirrus_bitblt_rop_bkwd_src_notxor_dst,
374 cirrus_bitblt_rop_bkwd_src_or_notdst,
375 cirrus_bitblt_rop_bkwd_notsrc,
376 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
377 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
378 };
379
380 #define TRANSP_ROP(name) {\
381 name ## _8,\
382 name ## _16,\
383 }
384 #define TRANSP_NOP(func) {\
385 func,\
386 func,\
387 }
388
389 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
390 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
391 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
392 TRANSP_NOP(cirrus_bitblt_rop_nop),
393 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
394 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
395 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
396 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
397 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
398 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
399 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
400 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
401 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
402 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
403 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
404 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
405 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
406 };
407
408 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
409 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
410 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
411 TRANSP_NOP(cirrus_bitblt_rop_nop),
412 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
413 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
414 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
415 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
416 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
417 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
418 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
419 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
420 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
421 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
422 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
423 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
424 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
425 };
426
427 #define ROP2(name) {\
428 name ## _8,\
429 name ## _16,\
430 name ## _24,\
431 name ## _32,\
432 }
433
434 #define ROP_NOP2(func) {\
435 func,\
436 func,\
437 func,\
438 func,\
439 }
440
441 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
442 ROP2(cirrus_patternfill_0),
443 ROP2(cirrus_patternfill_src_and_dst),
444 ROP_NOP2(cirrus_bitblt_rop_nop),
445 ROP2(cirrus_patternfill_src_and_notdst),
446 ROP2(cirrus_patternfill_notdst),
447 ROP2(cirrus_patternfill_src),
448 ROP2(cirrus_patternfill_1),
449 ROP2(cirrus_patternfill_notsrc_and_dst),
450 ROP2(cirrus_patternfill_src_xor_dst),
451 ROP2(cirrus_patternfill_src_or_dst),
452 ROP2(cirrus_patternfill_notsrc_or_notdst),
453 ROP2(cirrus_patternfill_src_notxor_dst),
454 ROP2(cirrus_patternfill_src_or_notdst),
455 ROP2(cirrus_patternfill_notsrc),
456 ROP2(cirrus_patternfill_notsrc_or_dst),
457 ROP2(cirrus_patternfill_notsrc_and_notdst),
458 };
459
460 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
461 ROP2(cirrus_colorexpand_transp_0),
462 ROP2(cirrus_colorexpand_transp_src_and_dst),
463 ROP_NOP2(cirrus_bitblt_rop_nop),
464 ROP2(cirrus_colorexpand_transp_src_and_notdst),
465 ROP2(cirrus_colorexpand_transp_notdst),
466 ROP2(cirrus_colorexpand_transp_src),
467 ROP2(cirrus_colorexpand_transp_1),
468 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
469 ROP2(cirrus_colorexpand_transp_src_xor_dst),
470 ROP2(cirrus_colorexpand_transp_src_or_dst),
471 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
472 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
473 ROP2(cirrus_colorexpand_transp_src_or_notdst),
474 ROP2(cirrus_colorexpand_transp_notsrc),
475 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
476 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
477 };
478
479 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
480 ROP2(cirrus_colorexpand_0),
481 ROP2(cirrus_colorexpand_src_and_dst),
482 ROP_NOP2(cirrus_bitblt_rop_nop),
483 ROP2(cirrus_colorexpand_src_and_notdst),
484 ROP2(cirrus_colorexpand_notdst),
485 ROP2(cirrus_colorexpand_src),
486 ROP2(cirrus_colorexpand_1),
487 ROP2(cirrus_colorexpand_notsrc_and_dst),
488 ROP2(cirrus_colorexpand_src_xor_dst),
489 ROP2(cirrus_colorexpand_src_or_dst),
490 ROP2(cirrus_colorexpand_notsrc_or_notdst),
491 ROP2(cirrus_colorexpand_src_notxor_dst),
492 ROP2(cirrus_colorexpand_src_or_notdst),
493 ROP2(cirrus_colorexpand_notsrc),
494 ROP2(cirrus_colorexpand_notsrc_or_dst),
495 ROP2(cirrus_colorexpand_notsrc_and_notdst),
496 };
497
498 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
499 ROP2(cirrus_colorexpand_pattern_transp_0),
500 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
501 ROP_NOP2(cirrus_bitblt_rop_nop),
502 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
503 ROP2(cirrus_colorexpand_pattern_transp_notdst),
504 ROP2(cirrus_colorexpand_pattern_transp_src),
505 ROP2(cirrus_colorexpand_pattern_transp_1),
506 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
507 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
508 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
509 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
510 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
511 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
512 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
513 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
514 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
515 };
516
517 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
518 ROP2(cirrus_colorexpand_pattern_0),
519 ROP2(cirrus_colorexpand_pattern_src_and_dst),
520 ROP_NOP2(cirrus_bitblt_rop_nop),
521 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
522 ROP2(cirrus_colorexpand_pattern_notdst),
523 ROP2(cirrus_colorexpand_pattern_src),
524 ROP2(cirrus_colorexpand_pattern_1),
525 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
526 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
527 ROP2(cirrus_colorexpand_pattern_src_or_dst),
528 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
529 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
530 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
531 ROP2(cirrus_colorexpand_pattern_notsrc),
532 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
533 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
534 };
535
536 static const cirrus_fill_t cirrus_fill[16][4] = {
537 ROP2(cirrus_fill_0),
538 ROP2(cirrus_fill_src_and_dst),
539 ROP_NOP2(cirrus_bitblt_fill_nop),
540 ROP2(cirrus_fill_src_and_notdst),
541 ROP2(cirrus_fill_notdst),
542 ROP2(cirrus_fill_src),
543 ROP2(cirrus_fill_1),
544 ROP2(cirrus_fill_notsrc_and_dst),
545 ROP2(cirrus_fill_src_xor_dst),
546 ROP2(cirrus_fill_src_or_dst),
547 ROP2(cirrus_fill_notsrc_or_notdst),
548 ROP2(cirrus_fill_src_notxor_dst),
549 ROP2(cirrus_fill_src_or_notdst),
550 ROP2(cirrus_fill_notsrc),
551 ROP2(cirrus_fill_notsrc_or_dst),
552 ROP2(cirrus_fill_notsrc_and_notdst),
553 };
554
555 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
556 {
557 unsigned int color;
558 switch (s->cirrus_blt_pixelwidth) {
559 case 1:
560 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
561 break;
562 case 2:
563 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
564 s->cirrus_blt_fgcol = le16_to_cpu(color);
565 break;
566 case 3:
567 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
568 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
569 break;
570 default:
571 case 4:
572 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
573 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
574 s->cirrus_blt_fgcol = le32_to_cpu(color);
575 break;
576 }
577 }
578
579 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
580 {
581 unsigned int color;
582 switch (s->cirrus_blt_pixelwidth) {
583 case 1:
584 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
585 break;
586 case 2:
587 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
588 s->cirrus_blt_bgcol = le16_to_cpu(color);
589 break;
590 case 3:
591 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
592 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
593 break;
594 default:
595 case 4:
596 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
597 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
598 s->cirrus_blt_bgcol = le32_to_cpu(color);
599 break;
600 }
601 }
602
603 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
604 int off_pitch, int bytesperline,
605 int lines)
606 {
607 int y;
608 int off_cur;
609 int off_cur_end;
610
611 for (y = 0; y < lines; y++) {
612 off_cur = off_begin;
613 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
614 off_cur &= TARGET_PAGE_MASK;
615 while (off_cur < off_cur_end) {
616 cpu_physical_memory_set_dirty(s->vga.vram_offset + off_cur);
617 off_cur += TARGET_PAGE_SIZE;
618 }
619 off_begin += off_pitch;
620 }
621 }
622
623 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
624 const uint8_t * src)
625 {
626 uint8_t *dst;
627
628 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
629
630 if (BLTUNSAFE(s))
631 return 0;
632
633 (*s->cirrus_rop) (s, dst, src,
634 s->cirrus_blt_dstpitch, 0,
635 s->cirrus_blt_width, s->cirrus_blt_height);
636 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
637 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
638 s->cirrus_blt_height);
639 return 1;
640 }
641
642 /* fill */
643
644 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
645 {
646 cirrus_fill_t rop_func;
647
648 if (BLTUNSAFE(s))
649 return 0;
650 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
651 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
652 s->cirrus_blt_dstpitch,
653 s->cirrus_blt_width, s->cirrus_blt_height);
654 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
655 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
656 s->cirrus_blt_height);
657 cirrus_bitblt_reset(s);
658 return 1;
659 }
660
661 /***************************************
662 *
663 * bitblt (video-to-video)
664 *
665 ***************************************/
666
667 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
668 {
669 return cirrus_bitblt_common_patterncopy(s,
670 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
671 s->cirrus_addr_mask));
672 }
673
674 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
675 {
676 int sx, sy;
677 int dx, dy;
678 int width, height;
679 int depth;
680 int notify = 0;
681
682 depth = s->vga.get_bpp(&s->vga) / 8;
683 s->vga.get_resolution(&s->vga, &width, &height);
684
685 /* extra x, y */
686 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
687 sy = (src / ABS(s->cirrus_blt_srcpitch));
688 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
689 dy = (dst / ABS(s->cirrus_blt_dstpitch));
690
691 /* normalize width */
692 w /= depth;
693
694 /* if we're doing a backward copy, we have to adjust
695 our x/y to be the upper left corner (instead of the lower
696 right corner) */
697 if (s->cirrus_blt_dstpitch < 0) {
698 sx -= (s->cirrus_blt_width / depth) - 1;
699 dx -= (s->cirrus_blt_width / depth) - 1;
700 sy -= s->cirrus_blt_height - 1;
701 dy -= s->cirrus_blt_height - 1;
702 }
703
704 /* are we in the visible portion of memory? */
705 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
706 (sx + w) <= width && (sy + h) <= height &&
707 (dx + w) <= width && (dy + h) <= height) {
708 notify = 1;
709 }
710
711 /* make to sure only copy if it's a plain copy ROP */
712 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
713 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
714 notify = 0;
715
716 /* we have to flush all pending changes so that the copy
717 is generated at the appropriate moment in time */
718 if (notify)
719 vga_hw_update();
720
721 (*s->cirrus_rop) (s, s->vga.vram_ptr +
722 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
723 s->vga.vram_ptr +
724 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
725 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
726 s->cirrus_blt_width, s->cirrus_blt_height);
727
728 if (notify)
729 qemu_console_copy(s->vga.ds,
730 sx, sy, dx, dy,
731 s->cirrus_blt_width / depth,
732 s->cirrus_blt_height);
733
734 /* we don't have to notify the display that this portion has
735 changed since qemu_console_copy implies this */
736
737 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
738 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
739 s->cirrus_blt_height);
740 }
741
742 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
743 {
744 if (BLTUNSAFE(s))
745 return 0;
746
747 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
748 s->cirrus_blt_srcaddr - s->vga.start_addr,
749 s->cirrus_blt_width, s->cirrus_blt_height);
750
751 return 1;
752 }
753
754 /***************************************
755 *
756 * bitblt (cpu-to-video)
757 *
758 ***************************************/
759
760 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
761 {
762 int copy_count;
763 uint8_t *end_ptr;
764
765 if (s->cirrus_srccounter > 0) {
766 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
767 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
768 the_end:
769 s->cirrus_srccounter = 0;
770 cirrus_bitblt_reset(s);
771 } else {
772 /* at least one scan line */
773 do {
774 (*s->cirrus_rop)(s, s->vga.vram_ptr +
775 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
776 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
777 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
778 s->cirrus_blt_width, 1);
779 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
780 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
781 if (s->cirrus_srccounter <= 0)
782 goto the_end;
783 /* more bytes than needed can be transfered because of
784 word alignment, so we keep them for the next line */
785 /* XXX: keep alignment to speed up transfer */
786 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
787 copy_count = s->cirrus_srcptr_end - end_ptr;
788 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
789 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
790 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
791 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
792 }
793 }
794 }
795
796 /***************************************
797 *
798 * bitblt wrapper
799 *
800 ***************************************/
801
802 static void cirrus_bitblt_reset(CirrusVGAState * s)
803 {
804 int need_update;
805
806 s->vga.gr[0x31] &=
807 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
808 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
809 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
810 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
811 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
812 s->cirrus_srccounter = 0;
813 if (!need_update)
814 return;
815 cirrus_update_memory_access(s);
816 }
817
818 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
819 {
820 int w;
821
822 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
823 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
824 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
825
826 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
827 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
828 s->cirrus_blt_srcpitch = 8;
829 } else {
830 /* XXX: check for 24 bpp */
831 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
832 }
833 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
834 } else {
835 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
836 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
837 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
838 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
839 else
840 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
841 } else {
842 /* always align input size to 32 bits */
843 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
844 }
845 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
846 }
847 s->cirrus_srcptr = s->cirrus_bltbuf;
848 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
849 cirrus_update_memory_access(s);
850 return 1;
851 }
852
853 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
854 {
855 /* XXX */
856 #ifdef DEBUG_BITBLT
857 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
858 #endif
859 return 0;
860 }
861
862 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
863 {
864 int ret;
865
866 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
867 ret = cirrus_bitblt_videotovideo_patterncopy(s);
868 } else {
869 ret = cirrus_bitblt_videotovideo_copy(s);
870 }
871 if (ret)
872 cirrus_bitblt_reset(s);
873 return ret;
874 }
875
876 static void cirrus_bitblt_start(CirrusVGAState * s)
877 {
878 uint8_t blt_rop;
879
880 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
881
882 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
883 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
884 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
885 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
886 s->cirrus_blt_dstaddr =
887 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
888 s->cirrus_blt_srcaddr =
889 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
890 s->cirrus_blt_mode = s->vga.gr[0x30];
891 s->cirrus_blt_modeext = s->vga.gr[0x33];
892 blt_rop = s->vga.gr[0x32];
893
894 #ifdef DEBUG_BITBLT
895 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",
896 blt_rop,
897 s->cirrus_blt_mode,
898 s->cirrus_blt_modeext,
899 s->cirrus_blt_width,
900 s->cirrus_blt_height,
901 s->cirrus_blt_dstpitch,
902 s->cirrus_blt_srcpitch,
903 s->cirrus_blt_dstaddr,
904 s->cirrus_blt_srcaddr,
905 s->vga.gr[0x2f]);
906 #endif
907
908 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
909 case CIRRUS_BLTMODE_PIXELWIDTH8:
910 s->cirrus_blt_pixelwidth = 1;
911 break;
912 case CIRRUS_BLTMODE_PIXELWIDTH16:
913 s->cirrus_blt_pixelwidth = 2;
914 break;
915 case CIRRUS_BLTMODE_PIXELWIDTH24:
916 s->cirrus_blt_pixelwidth = 3;
917 break;
918 case CIRRUS_BLTMODE_PIXELWIDTH32:
919 s->cirrus_blt_pixelwidth = 4;
920 break;
921 default:
922 #ifdef DEBUG_BITBLT
923 printf("cirrus: bitblt - pixel width is unknown\n");
924 #endif
925 goto bitblt_ignore;
926 }
927 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
928
929 if ((s->
930 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
931 CIRRUS_BLTMODE_MEMSYSDEST))
932 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
933 #ifdef DEBUG_BITBLT
934 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
935 #endif
936 goto bitblt_ignore;
937 }
938
939 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
940 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
941 CIRRUS_BLTMODE_TRANSPARENTCOMP |
942 CIRRUS_BLTMODE_PATTERNCOPY |
943 CIRRUS_BLTMODE_COLOREXPAND)) ==
944 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
945 cirrus_bitblt_fgcol(s);
946 cirrus_bitblt_solidfill(s, blt_rop);
947 } else {
948 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
949 CIRRUS_BLTMODE_PATTERNCOPY)) ==
950 CIRRUS_BLTMODE_COLOREXPAND) {
951
952 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
953 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
954 cirrus_bitblt_bgcol(s);
955 else
956 cirrus_bitblt_fgcol(s);
957 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
958 } else {
959 cirrus_bitblt_fgcol(s);
960 cirrus_bitblt_bgcol(s);
961 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
962 }
963 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
964 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
965 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
966 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
967 cirrus_bitblt_bgcol(s);
968 else
969 cirrus_bitblt_fgcol(s);
970 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
971 } else {
972 cirrus_bitblt_fgcol(s);
973 cirrus_bitblt_bgcol(s);
974 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
975 }
976 } else {
977 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
978 }
979 } else {
980 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
981 if (s->cirrus_blt_pixelwidth > 2) {
982 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
983 goto bitblt_ignore;
984 }
985 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
986 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
987 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
988 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
989 } else {
990 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
991 }
992 } else {
993 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
994 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
995 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
996 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
997 } else {
998 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
999 }
1000 }
1001 }
1002 // setup bitblt engine.
1003 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1004 if (!cirrus_bitblt_cputovideo(s))
1005 goto bitblt_ignore;
1006 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1007 if (!cirrus_bitblt_videotocpu(s))
1008 goto bitblt_ignore;
1009 } else {
1010 if (!cirrus_bitblt_videotovideo(s))
1011 goto bitblt_ignore;
1012 }
1013 }
1014 return;
1015 bitblt_ignore:;
1016 cirrus_bitblt_reset(s);
1017 }
1018
1019 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1020 {
1021 unsigned old_value;
1022
1023 old_value = s->vga.gr[0x31];
1024 s->vga.gr[0x31] = reg_value;
1025
1026 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1027 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1028 cirrus_bitblt_reset(s);
1029 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1030 ((reg_value & CIRRUS_BLT_START) != 0)) {
1031 cirrus_bitblt_start(s);
1032 }
1033 }
1034
1035
1036 /***************************************
1037 *
1038 * basic parameters
1039 *
1040 ***************************************/
1041
1042 static void cirrus_get_offsets(VGACommonState *s1,
1043 uint32_t *pline_offset,
1044 uint32_t *pstart_addr,
1045 uint32_t *pline_compare)
1046 {
1047 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1048 uint32_t start_addr, line_offset, line_compare;
1049
1050 line_offset = s->vga.cr[0x13]
1051 | ((s->vga.cr[0x1b] & 0x10) << 4);
1052 line_offset <<= 3;
1053 *pline_offset = line_offset;
1054
1055 start_addr = (s->vga.cr[0x0c] << 8)
1056 | s->vga.cr[0x0d]
1057 | ((s->vga.cr[0x1b] & 0x01) << 16)
1058 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1059 | ((s->vga.cr[0x1d] & 0x80) << 12);
1060 *pstart_addr = start_addr;
1061
1062 line_compare = s->vga.cr[0x18] |
1063 ((s->vga.cr[0x07] & 0x10) << 4) |
1064 ((s->vga.cr[0x09] & 0x40) << 3);
1065 *pline_compare = line_compare;
1066 }
1067
1068 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1069 {
1070 uint32_t ret = 16;
1071
1072 switch (s->cirrus_hidden_dac_data & 0xf) {
1073 case 0:
1074 ret = 15;
1075 break; /* Sierra HiColor */
1076 case 1:
1077 ret = 16;
1078 break; /* XGA HiColor */
1079 default:
1080 #ifdef DEBUG_CIRRUS
1081 printf("cirrus: invalid DAC value %x in 16bpp\n",
1082 (s->cirrus_hidden_dac_data & 0xf));
1083 #endif
1084 ret = 15; /* XXX */
1085 break;
1086 }
1087 return ret;
1088 }
1089
1090 static int cirrus_get_bpp(VGACommonState *s1)
1091 {
1092 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1093 uint32_t ret = 8;
1094
1095 if ((s->vga.sr[0x07] & 0x01) != 0) {
1096 /* Cirrus SVGA */
1097 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1098 case CIRRUS_SR7_BPP_8:
1099 ret = 8;
1100 break;
1101 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1102 ret = cirrus_get_bpp16_depth(s);
1103 break;
1104 case CIRRUS_SR7_BPP_24:
1105 ret = 24;
1106 break;
1107 case CIRRUS_SR7_BPP_16:
1108 ret = cirrus_get_bpp16_depth(s);
1109 break;
1110 case CIRRUS_SR7_BPP_32:
1111 ret = 32;
1112 break;
1113 default:
1114 #ifdef DEBUG_CIRRUS
1115 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1116 #endif
1117 ret = 8;
1118 break;
1119 }
1120 } else {
1121 /* VGA */
1122 ret = 0;
1123 }
1124
1125 return ret;
1126 }
1127
1128 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1129 {
1130 int width, height;
1131
1132 width = (s->cr[0x01] + 1) * 8;
1133 height = s->cr[0x12] |
1134 ((s->cr[0x07] & 0x02) << 7) |
1135 ((s->cr[0x07] & 0x40) << 3);
1136 height = (height + 1);
1137 /* interlace support */
1138 if (s->cr[0x1a] & 0x01)
1139 height = height * 2;
1140 *pwidth = width;
1141 *pheight = height;
1142 }
1143
1144 /***************************************
1145 *
1146 * bank memory
1147 *
1148 ***************************************/
1149
1150 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1151 {
1152 unsigned offset;
1153 unsigned limit;
1154
1155 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1156 offset = s->vga.gr[0x09 + bank_index];
1157 else /* single bank */
1158 offset = s->vga.gr[0x09];
1159
1160 if ((s->vga.gr[0x0b] & 0x20) != 0)
1161 offset <<= 14;
1162 else
1163 offset <<= 12;
1164
1165 if (s->real_vram_size <= offset)
1166 limit = 0;
1167 else
1168 limit = s->real_vram_size - offset;
1169
1170 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1171 if (limit > 0x8000) {
1172 offset += 0x8000;
1173 limit -= 0x8000;
1174 } else {
1175 limit = 0;
1176 }
1177 }
1178
1179 if (limit > 0) {
1180 /* Thinking about changing bank base? First, drop the dirty bitmap information
1181 * on the current location, otherwise we lose this pointer forever */
1182 if (s->vga.lfb_vram_mapped) {
1183 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1184 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1185 }
1186 s->cirrus_bank_base[bank_index] = offset;
1187 s->cirrus_bank_limit[bank_index] = limit;
1188 } else {
1189 s->cirrus_bank_base[bank_index] = 0;
1190 s->cirrus_bank_limit[bank_index] = 0;
1191 }
1192 }
1193
1194 /***************************************
1195 *
1196 * I/O access between 0x3c4-0x3c5
1197 *
1198 ***************************************/
1199
1200 static int cirrus_vga_read_sr(CirrusVGAState * s)
1201 {
1202 switch (s->vga.sr_index) {
1203 case 0x00: // Standard VGA
1204 case 0x01: // Standard VGA
1205 case 0x02: // Standard VGA
1206 case 0x03: // Standard VGA
1207 case 0x04: // Standard VGA
1208 return s->vga.sr[s->vga.sr_index];
1209 case 0x06: // Unlock Cirrus extensions
1210 return s->vga.sr[s->vga.sr_index];
1211 case 0x10:
1212 case 0x30:
1213 case 0x50:
1214 case 0x70: // Graphics Cursor X
1215 case 0x90:
1216 case 0xb0:
1217 case 0xd0:
1218 case 0xf0: // Graphics Cursor X
1219 return s->vga.sr[0x10];
1220 case 0x11:
1221 case 0x31:
1222 case 0x51:
1223 case 0x71: // Graphics Cursor Y
1224 case 0x91:
1225 case 0xb1:
1226 case 0xd1:
1227 case 0xf1: // Graphics Cursor Y
1228 return s->vga.sr[0x11];
1229 case 0x05: // ???
1230 case 0x07: // Extended Sequencer Mode
1231 case 0x08: // EEPROM Control
1232 case 0x09: // Scratch Register 0
1233 case 0x0a: // Scratch Register 1
1234 case 0x0b: // VCLK 0
1235 case 0x0c: // VCLK 1
1236 case 0x0d: // VCLK 2
1237 case 0x0e: // VCLK 3
1238 case 0x0f: // DRAM Control
1239 case 0x12: // Graphics Cursor Attribute
1240 case 0x13: // Graphics Cursor Pattern Address
1241 case 0x14: // Scratch Register 2
1242 case 0x15: // Scratch Register 3
1243 case 0x16: // Performance Tuning Register
1244 case 0x17: // Configuration Readback and Extended Control
1245 case 0x18: // Signature Generator Control
1246 case 0x19: // Signal Generator Result
1247 case 0x1a: // Signal Generator Result
1248 case 0x1b: // VCLK 0 Denominator & Post
1249 case 0x1c: // VCLK 1 Denominator & Post
1250 case 0x1d: // VCLK 2 Denominator & Post
1251 case 0x1e: // VCLK 3 Denominator & Post
1252 case 0x1f: // BIOS Write Enable and MCLK select
1253 #ifdef DEBUG_CIRRUS
1254 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1255 #endif
1256 return s->vga.sr[s->vga.sr_index];
1257 default:
1258 #ifdef DEBUG_CIRRUS
1259 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1260 #endif
1261 return 0xff;
1262 break;
1263 }
1264 }
1265
1266 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1267 {
1268 switch (s->vga.sr_index) {
1269 case 0x00: // Standard VGA
1270 case 0x01: // Standard VGA
1271 case 0x02: // Standard VGA
1272 case 0x03: // Standard VGA
1273 case 0x04: // Standard VGA
1274 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1275 if (s->vga.sr_index == 1)
1276 s->vga.update_retrace_info(&s->vga);
1277 break;
1278 case 0x06: // Unlock Cirrus extensions
1279 val &= 0x17;
1280 if (val == 0x12) {
1281 s->vga.sr[s->vga.sr_index] = 0x12;
1282 } else {
1283 s->vga.sr[s->vga.sr_index] = 0x0f;
1284 }
1285 break;
1286 case 0x10:
1287 case 0x30:
1288 case 0x50:
1289 case 0x70: // Graphics Cursor X
1290 case 0x90:
1291 case 0xb0:
1292 case 0xd0:
1293 case 0xf0: // Graphics Cursor X
1294 s->vga.sr[0x10] = val;
1295 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1296 break;
1297 case 0x11:
1298 case 0x31:
1299 case 0x51:
1300 case 0x71: // Graphics Cursor Y
1301 case 0x91:
1302 case 0xb1:
1303 case 0xd1:
1304 case 0xf1: // Graphics Cursor Y
1305 s->vga.sr[0x11] = val;
1306 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1307 break;
1308 case 0x07: // Extended Sequencer Mode
1309 cirrus_update_memory_access(s);
1310 case 0x08: // EEPROM Control
1311 case 0x09: // Scratch Register 0
1312 case 0x0a: // Scratch Register 1
1313 case 0x0b: // VCLK 0
1314 case 0x0c: // VCLK 1
1315 case 0x0d: // VCLK 2
1316 case 0x0e: // VCLK 3
1317 case 0x0f: // DRAM Control
1318 case 0x12: // Graphics Cursor Attribute
1319 case 0x13: // Graphics Cursor Pattern Address
1320 case 0x14: // Scratch Register 2
1321 case 0x15: // Scratch Register 3
1322 case 0x16: // Performance Tuning Register
1323 case 0x18: // Signature Generator Control
1324 case 0x19: // Signature Generator Result
1325 case 0x1a: // Signature Generator Result
1326 case 0x1b: // VCLK 0 Denominator & Post
1327 case 0x1c: // VCLK 1 Denominator & Post
1328 case 0x1d: // VCLK 2 Denominator & Post
1329 case 0x1e: // VCLK 3 Denominator & Post
1330 case 0x1f: // BIOS Write Enable and MCLK select
1331 s->vga.sr[s->vga.sr_index] = val;
1332 #ifdef DEBUG_CIRRUS
1333 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1334 s->vga.sr_index, val);
1335 #endif
1336 break;
1337 case 0x17: // Configuration Readback and Extended Control
1338 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1339 | (val & 0xc7);
1340 cirrus_update_memory_access(s);
1341 break;
1342 default:
1343 #ifdef DEBUG_CIRRUS
1344 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1345 s->vga.sr_index, val);
1346 #endif
1347 break;
1348 }
1349 }
1350
1351 /***************************************
1352 *
1353 * I/O access at 0x3c6
1354 *
1355 ***************************************/
1356
1357 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1358 {
1359 if (++s->cirrus_hidden_dac_lockindex == 5) {
1360 s->cirrus_hidden_dac_lockindex = 0;
1361 return s->cirrus_hidden_dac_data;
1362 }
1363 return 0xff;
1364 }
1365
1366 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1367 {
1368 if (s->cirrus_hidden_dac_lockindex == 4) {
1369 s->cirrus_hidden_dac_data = reg_value;
1370 #if defined(DEBUG_CIRRUS)
1371 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1372 #endif
1373 }
1374 s->cirrus_hidden_dac_lockindex = 0;
1375 }
1376
1377 /***************************************
1378 *
1379 * I/O access at 0x3c9
1380 *
1381 ***************************************/
1382
1383 static int cirrus_vga_read_palette(CirrusVGAState * s)
1384 {
1385 int val;
1386
1387 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1388 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1389 s->vga.dac_sub_index];
1390 } else {
1391 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1392 }
1393 if (++s->vga.dac_sub_index == 3) {
1394 s->vga.dac_sub_index = 0;
1395 s->vga.dac_read_index++;
1396 }
1397 return val;
1398 }
1399
1400 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1401 {
1402 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1403 if (++s->vga.dac_sub_index == 3) {
1404 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1405 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1406 s->vga.dac_cache, 3);
1407 } else {
1408 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1409 }
1410 /* XXX update cursor */
1411 s->vga.dac_sub_index = 0;
1412 s->vga.dac_write_index++;
1413 }
1414 }
1415
1416 /***************************************
1417 *
1418 * I/O access between 0x3ce-0x3cf
1419 *
1420 ***************************************/
1421
1422 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1423 {
1424 switch (reg_index) {
1425 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1426 return s->cirrus_shadow_gr0;
1427 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1428 return s->cirrus_shadow_gr1;
1429 case 0x02: // Standard VGA
1430 case 0x03: // Standard VGA
1431 case 0x04: // Standard VGA
1432 case 0x06: // Standard VGA
1433 case 0x07: // Standard VGA
1434 case 0x08: // Standard VGA
1435 return s->vga.gr[s->vga.gr_index];
1436 case 0x05: // Standard VGA, Cirrus extended mode
1437 default:
1438 break;
1439 }
1440
1441 if (reg_index < 0x3a) {
1442 return s->vga.gr[reg_index];
1443 } else {
1444 #ifdef DEBUG_CIRRUS
1445 printf("cirrus: inport gr_index %02x\n", reg_index);
1446 #endif
1447 return 0xff;
1448 }
1449 }
1450
1451 static void
1452 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1453 {
1454 #if defined(DEBUG_BITBLT) && 0
1455 printf("gr%02x: %02x\n", reg_index, reg_value);
1456 #endif
1457 switch (reg_index) {
1458 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1459 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1460 s->cirrus_shadow_gr0 = reg_value;
1461 break;
1462 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1463 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1464 s->cirrus_shadow_gr1 = reg_value;
1465 break;
1466 case 0x02: // Standard VGA
1467 case 0x03: // Standard VGA
1468 case 0x04: // Standard VGA
1469 case 0x06: // Standard VGA
1470 case 0x07: // Standard VGA
1471 case 0x08: // Standard VGA
1472 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1473 break;
1474 case 0x05: // Standard VGA, Cirrus extended mode
1475 s->vga.gr[reg_index] = reg_value & 0x7f;
1476 cirrus_update_memory_access(s);
1477 break;
1478 case 0x09: // bank offset #0
1479 case 0x0A: // bank offset #1
1480 s->vga.gr[reg_index] = reg_value;
1481 cirrus_update_bank_ptr(s, 0);
1482 cirrus_update_bank_ptr(s, 1);
1483 cirrus_update_memory_access(s);
1484 break;
1485 case 0x0B:
1486 s->vga.gr[reg_index] = reg_value;
1487 cirrus_update_bank_ptr(s, 0);
1488 cirrus_update_bank_ptr(s, 1);
1489 cirrus_update_memory_access(s);
1490 break;
1491 case 0x10: // BGCOLOR 0x0000ff00
1492 case 0x11: // FGCOLOR 0x0000ff00
1493 case 0x12: // BGCOLOR 0x00ff0000
1494 case 0x13: // FGCOLOR 0x00ff0000
1495 case 0x14: // BGCOLOR 0xff000000
1496 case 0x15: // FGCOLOR 0xff000000
1497 case 0x20: // BLT WIDTH 0x0000ff
1498 case 0x22: // BLT HEIGHT 0x0000ff
1499 case 0x24: // BLT DEST PITCH 0x0000ff
1500 case 0x26: // BLT SRC PITCH 0x0000ff
1501 case 0x28: // BLT DEST ADDR 0x0000ff
1502 case 0x29: // BLT DEST ADDR 0x00ff00
1503 case 0x2c: // BLT SRC ADDR 0x0000ff
1504 case 0x2d: // BLT SRC ADDR 0x00ff00
1505 case 0x2f: // BLT WRITEMASK
1506 case 0x30: // BLT MODE
1507 case 0x32: // RASTER OP
1508 case 0x33: // BLT MODEEXT
1509 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1510 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1511 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1512 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1513 s->vga.gr[reg_index] = reg_value;
1514 break;
1515 case 0x21: // BLT WIDTH 0x001f00
1516 case 0x23: // BLT HEIGHT 0x001f00
1517 case 0x25: // BLT DEST PITCH 0x001f00
1518 case 0x27: // BLT SRC PITCH 0x001f00
1519 s->vga.gr[reg_index] = reg_value & 0x1f;
1520 break;
1521 case 0x2a: // BLT DEST ADDR 0x3f0000
1522 s->vga.gr[reg_index] = reg_value & 0x3f;
1523 /* if auto start mode, starts bit blt now */
1524 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1525 cirrus_bitblt_start(s);
1526 }
1527 break;
1528 case 0x2e: // BLT SRC ADDR 0x3f0000
1529 s->vga.gr[reg_index] = reg_value & 0x3f;
1530 break;
1531 case 0x31: // BLT STATUS/START
1532 cirrus_write_bitblt(s, reg_value);
1533 break;
1534 default:
1535 #ifdef DEBUG_CIRRUS
1536 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1537 reg_value);
1538 #endif
1539 break;
1540 }
1541 }
1542
1543 /***************************************
1544 *
1545 * I/O access between 0x3d4-0x3d5
1546 *
1547 ***************************************/
1548
1549 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1550 {
1551 switch (reg_index) {
1552 case 0x00: // Standard VGA
1553 case 0x01: // Standard VGA
1554 case 0x02: // Standard VGA
1555 case 0x03: // Standard VGA
1556 case 0x04: // Standard VGA
1557 case 0x05: // Standard VGA
1558 case 0x06: // Standard VGA
1559 case 0x07: // Standard VGA
1560 case 0x08: // Standard VGA
1561 case 0x09: // Standard VGA
1562 case 0x0a: // Standard VGA
1563 case 0x0b: // Standard VGA
1564 case 0x0c: // Standard VGA
1565 case 0x0d: // Standard VGA
1566 case 0x0e: // Standard VGA
1567 case 0x0f: // Standard VGA
1568 case 0x10: // Standard VGA
1569 case 0x11: // Standard VGA
1570 case 0x12: // Standard VGA
1571 case 0x13: // Standard VGA
1572 case 0x14: // Standard VGA
1573 case 0x15: // Standard VGA
1574 case 0x16: // Standard VGA
1575 case 0x17: // Standard VGA
1576 case 0x18: // Standard VGA
1577 return s->vga.cr[s->vga.cr_index];
1578 case 0x24: // Attribute Controller Toggle Readback (R)
1579 return (s->vga.ar_flip_flop << 7);
1580 case 0x19: // Interlace End
1581 case 0x1a: // Miscellaneous Control
1582 case 0x1b: // Extended Display Control
1583 case 0x1c: // Sync Adjust and Genlock
1584 case 0x1d: // Overlay Extended Control
1585 case 0x22: // Graphics Data Latches Readback (R)
1586 case 0x25: // Part Status
1587 case 0x27: // Part ID (R)
1588 return s->vga.cr[s->vga.cr_index];
1589 case 0x26: // Attribute Controller Index Readback (R)
1590 return s->vga.ar_index & 0x3f;
1591 break;
1592 default:
1593 #ifdef DEBUG_CIRRUS
1594 printf("cirrus: inport cr_index %02x\n", reg_index);
1595 #endif
1596 return 0xff;
1597 }
1598 }
1599
1600 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1601 {
1602 switch (s->vga.cr_index) {
1603 case 0x00: // Standard VGA
1604 case 0x01: // Standard VGA
1605 case 0x02: // Standard VGA
1606 case 0x03: // Standard VGA
1607 case 0x04: // Standard VGA
1608 case 0x05: // Standard VGA
1609 case 0x06: // Standard VGA
1610 case 0x07: // Standard VGA
1611 case 0x08: // Standard VGA
1612 case 0x09: // Standard VGA
1613 case 0x0a: // Standard VGA
1614 case 0x0b: // Standard VGA
1615 case 0x0c: // Standard VGA
1616 case 0x0d: // Standard VGA
1617 case 0x0e: // Standard VGA
1618 case 0x0f: // Standard VGA
1619 case 0x10: // Standard VGA
1620 case 0x11: // Standard VGA
1621 case 0x12: // Standard VGA
1622 case 0x13: // Standard VGA
1623 case 0x14: // Standard VGA
1624 case 0x15: // Standard VGA
1625 case 0x16: // Standard VGA
1626 case 0x17: // Standard VGA
1627 case 0x18: // Standard VGA
1628 /* handle CR0-7 protection */
1629 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1630 /* can always write bit 4 of CR7 */
1631 if (s->vga.cr_index == 7)
1632 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1633 return;
1634 }
1635 s->vga.cr[s->vga.cr_index] = reg_value;
1636 switch(s->vga.cr_index) {
1637 case 0x00:
1638 case 0x04:
1639 case 0x05:
1640 case 0x06:
1641 case 0x07:
1642 case 0x11:
1643 case 0x17:
1644 s->vga.update_retrace_info(&s->vga);
1645 break;
1646 }
1647 break;
1648 case 0x19: // Interlace End
1649 case 0x1a: // Miscellaneous Control
1650 case 0x1b: // Extended Display Control
1651 case 0x1c: // Sync Adjust and Genlock
1652 case 0x1d: // Overlay Extended Control
1653 s->vga.cr[s->vga.cr_index] = reg_value;
1654 #ifdef DEBUG_CIRRUS
1655 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1656 s->vga.cr_index, reg_value);
1657 #endif
1658 break;
1659 case 0x22: // Graphics Data Latches Readback (R)
1660 case 0x24: // Attribute Controller Toggle Readback (R)
1661 case 0x26: // Attribute Controller Index Readback (R)
1662 case 0x27: // Part ID (R)
1663 break;
1664 case 0x25: // Part Status
1665 default:
1666 #ifdef DEBUG_CIRRUS
1667 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1668 s->vga.cr_index, reg_value);
1669 #endif
1670 break;
1671 }
1672 }
1673
1674 /***************************************
1675 *
1676 * memory-mapped I/O (bitblt)
1677 *
1678 ***************************************/
1679
1680 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1681 {
1682 int value = 0xff;
1683
1684 switch (address) {
1685 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1686 value = cirrus_vga_read_gr(s, 0x00);
1687 break;
1688 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1689 value = cirrus_vga_read_gr(s, 0x10);
1690 break;
1691 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1692 value = cirrus_vga_read_gr(s, 0x12);
1693 break;
1694 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1695 value = cirrus_vga_read_gr(s, 0x14);
1696 break;
1697 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1698 value = cirrus_vga_read_gr(s, 0x01);
1699 break;
1700 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1701 value = cirrus_vga_read_gr(s, 0x11);
1702 break;
1703 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1704 value = cirrus_vga_read_gr(s, 0x13);
1705 break;
1706 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1707 value = cirrus_vga_read_gr(s, 0x15);
1708 break;
1709 case (CIRRUS_MMIO_BLTWIDTH + 0):
1710 value = cirrus_vga_read_gr(s, 0x20);
1711 break;
1712 case (CIRRUS_MMIO_BLTWIDTH + 1):
1713 value = cirrus_vga_read_gr(s, 0x21);
1714 break;
1715 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1716 value = cirrus_vga_read_gr(s, 0x22);
1717 break;
1718 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1719 value = cirrus_vga_read_gr(s, 0x23);
1720 break;
1721 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1722 value = cirrus_vga_read_gr(s, 0x24);
1723 break;
1724 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1725 value = cirrus_vga_read_gr(s, 0x25);
1726 break;
1727 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1728 value = cirrus_vga_read_gr(s, 0x26);
1729 break;
1730 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1731 value = cirrus_vga_read_gr(s, 0x27);
1732 break;
1733 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1734 value = cirrus_vga_read_gr(s, 0x28);
1735 break;
1736 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1737 value = cirrus_vga_read_gr(s, 0x29);
1738 break;
1739 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1740 value = cirrus_vga_read_gr(s, 0x2a);
1741 break;
1742 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1743 value = cirrus_vga_read_gr(s, 0x2c);
1744 break;
1745 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1746 value = cirrus_vga_read_gr(s, 0x2d);
1747 break;
1748 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1749 value = cirrus_vga_read_gr(s, 0x2e);
1750 break;
1751 case CIRRUS_MMIO_BLTWRITEMASK:
1752 value = cirrus_vga_read_gr(s, 0x2f);
1753 break;
1754 case CIRRUS_MMIO_BLTMODE:
1755 value = cirrus_vga_read_gr(s, 0x30);
1756 break;
1757 case CIRRUS_MMIO_BLTROP:
1758 value = cirrus_vga_read_gr(s, 0x32);
1759 break;
1760 case CIRRUS_MMIO_BLTMODEEXT:
1761 value = cirrus_vga_read_gr(s, 0x33);
1762 break;
1763 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1764 value = cirrus_vga_read_gr(s, 0x34);
1765 break;
1766 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1767 value = cirrus_vga_read_gr(s, 0x35);
1768 break;
1769 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1770 value = cirrus_vga_read_gr(s, 0x38);
1771 break;
1772 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1773 value = cirrus_vga_read_gr(s, 0x39);
1774 break;
1775 case CIRRUS_MMIO_BLTSTATUS:
1776 value = cirrus_vga_read_gr(s, 0x31);
1777 break;
1778 default:
1779 #ifdef DEBUG_CIRRUS
1780 printf("cirrus: mmio read - address 0x%04x\n", address);
1781 #endif
1782 break;
1783 }
1784
1785 return (uint8_t) value;
1786 }
1787
1788 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1789 uint8_t value)
1790 {
1791 switch (address) {
1792 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1793 cirrus_vga_write_gr(s, 0x00, value);
1794 break;
1795 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1796 cirrus_vga_write_gr(s, 0x10, value);
1797 break;
1798 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1799 cirrus_vga_write_gr(s, 0x12, value);
1800 break;
1801 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1802 cirrus_vga_write_gr(s, 0x14, value);
1803 break;
1804 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1805 cirrus_vga_write_gr(s, 0x01, value);
1806 break;
1807 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1808 cirrus_vga_write_gr(s, 0x11, value);
1809 break;
1810 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1811 cirrus_vga_write_gr(s, 0x13, value);
1812 break;
1813 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1814 cirrus_vga_write_gr(s, 0x15, value);
1815 break;
1816 case (CIRRUS_MMIO_BLTWIDTH + 0):
1817 cirrus_vga_write_gr(s, 0x20, value);
1818 break;
1819 case (CIRRUS_MMIO_BLTWIDTH + 1):
1820 cirrus_vga_write_gr(s, 0x21, value);
1821 break;
1822 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1823 cirrus_vga_write_gr(s, 0x22, value);
1824 break;
1825 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1826 cirrus_vga_write_gr(s, 0x23, value);
1827 break;
1828 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1829 cirrus_vga_write_gr(s, 0x24, value);
1830 break;
1831 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1832 cirrus_vga_write_gr(s, 0x25, value);
1833 break;
1834 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1835 cirrus_vga_write_gr(s, 0x26, value);
1836 break;
1837 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1838 cirrus_vga_write_gr(s, 0x27, value);
1839 break;
1840 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1841 cirrus_vga_write_gr(s, 0x28, value);
1842 break;
1843 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1844 cirrus_vga_write_gr(s, 0x29, value);
1845 break;
1846 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1847 cirrus_vga_write_gr(s, 0x2a, value);
1848 break;
1849 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1850 /* ignored */
1851 break;
1852 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1853 cirrus_vga_write_gr(s, 0x2c, value);
1854 break;
1855 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1856 cirrus_vga_write_gr(s, 0x2d, value);
1857 break;
1858 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1859 cirrus_vga_write_gr(s, 0x2e, value);
1860 break;
1861 case CIRRUS_MMIO_BLTWRITEMASK:
1862 cirrus_vga_write_gr(s, 0x2f, value);
1863 break;
1864 case CIRRUS_MMIO_BLTMODE:
1865 cirrus_vga_write_gr(s, 0x30, value);
1866 break;
1867 case CIRRUS_MMIO_BLTROP:
1868 cirrus_vga_write_gr(s, 0x32, value);
1869 break;
1870 case CIRRUS_MMIO_BLTMODEEXT:
1871 cirrus_vga_write_gr(s, 0x33, value);
1872 break;
1873 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1874 cirrus_vga_write_gr(s, 0x34, value);
1875 break;
1876 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1877 cirrus_vga_write_gr(s, 0x35, value);
1878 break;
1879 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1880 cirrus_vga_write_gr(s, 0x38, value);
1881 break;
1882 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1883 cirrus_vga_write_gr(s, 0x39, value);
1884 break;
1885 case CIRRUS_MMIO_BLTSTATUS:
1886 cirrus_vga_write_gr(s, 0x31, value);
1887 break;
1888 default:
1889 #ifdef DEBUG_CIRRUS
1890 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1891 address, value);
1892 #endif
1893 break;
1894 }
1895 }
1896
1897 /***************************************
1898 *
1899 * write mode 4/5
1900 *
1901 * assume TARGET_PAGE_SIZE >= 16
1902 *
1903 ***************************************/
1904
1905 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1906 unsigned mode,
1907 unsigned offset,
1908 uint32_t mem_value)
1909 {
1910 int x;
1911 unsigned val = mem_value;
1912 uint8_t *dst;
1913
1914 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1915 for (x = 0; x < 8; x++) {
1916 if (val & 0x80) {
1917 *dst = s->cirrus_shadow_gr1;
1918 } else if (mode == 5) {
1919 *dst = s->cirrus_shadow_gr0;
1920 }
1921 val <<= 1;
1922 dst++;
1923 }
1924 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1925 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 7);
1926 }
1927
1928 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1929 unsigned mode,
1930 unsigned offset,
1931 uint32_t mem_value)
1932 {
1933 int x;
1934 unsigned val = mem_value;
1935 uint8_t *dst;
1936
1937 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1938 for (x = 0; x < 8; x++) {
1939 if (val & 0x80) {
1940 *dst = s->cirrus_shadow_gr1;
1941 *(dst + 1) = s->vga.gr[0x11];
1942 } else if (mode == 5) {
1943 *dst = s->cirrus_shadow_gr0;
1944 *(dst + 1) = s->vga.gr[0x10];
1945 }
1946 val <<= 1;
1947 dst += 2;
1948 }
1949 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1950 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 15);
1951 }
1952
1953 /***************************************
1954 *
1955 * memory access between 0xa0000-0xbffff
1956 *
1957 ***************************************/
1958
1959 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1960 {
1961 CirrusVGAState *s = opaque;
1962 unsigned bank_index;
1963 unsigned bank_offset;
1964 uint32_t val;
1965
1966 if ((s->vga.sr[0x07] & 0x01) == 0) {
1967 return vga_mem_readb(s, addr);
1968 }
1969
1970 addr &= 0x1ffff;
1971
1972 if (addr < 0x10000) {
1973 /* XXX handle bitblt */
1974 /* video memory */
1975 bank_index = addr >> 15;
1976 bank_offset = addr & 0x7fff;
1977 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1978 bank_offset += s->cirrus_bank_base[bank_index];
1979 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
1980 bank_offset <<= 4;
1981 } else if (s->vga.gr[0x0B] & 0x02) {
1982 bank_offset <<= 3;
1983 }
1984 bank_offset &= s->cirrus_addr_mask;
1985 val = *(s->vga.vram_ptr + bank_offset);
1986 } else
1987 val = 0xff;
1988 } else if (addr >= 0x18000 && addr < 0x18100) {
1989 /* memory-mapped I/O */
1990 val = 0xff;
1991 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
1992 val = cirrus_mmio_blt_read(s, addr & 0xff);
1993 }
1994 } else {
1995 val = 0xff;
1996 #ifdef DEBUG_CIRRUS
1997 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
1998 #endif
1999 }
2000 return val;
2001 }
2002
2003 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2004 {
2005 uint32_t v;
2006 #ifdef TARGET_WORDS_BIGENDIAN
2007 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2008 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2009 #else
2010 v = cirrus_vga_mem_readb(opaque, addr);
2011 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2012 #endif
2013 return v;
2014 }
2015
2016 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2017 {
2018 uint32_t v;
2019 #ifdef TARGET_WORDS_BIGENDIAN
2020 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2021 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2022 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2023 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2024 #else
2025 v = cirrus_vga_mem_readb(opaque, addr);
2026 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2027 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2028 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2029 #endif
2030 return v;
2031 }
2032
2033 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2034 uint32_t mem_value)
2035 {
2036 CirrusVGAState *s = opaque;
2037 unsigned bank_index;
2038 unsigned bank_offset;
2039 unsigned mode;
2040
2041 if ((s->vga.sr[0x07] & 0x01) == 0) {
2042 vga_mem_writeb(s, addr, mem_value);
2043 return;
2044 }
2045
2046 addr &= 0x1ffff;
2047
2048 if (addr < 0x10000) {
2049 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2050 /* bitblt */
2051 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2052 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2053 cirrus_bitblt_cputovideo_next(s);
2054 }
2055 } else {
2056 /* video memory */
2057 bank_index = addr >> 15;
2058 bank_offset = addr & 0x7fff;
2059 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2060 bank_offset += s->cirrus_bank_base[bank_index];
2061 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2062 bank_offset <<= 4;
2063 } else if (s->vga.gr[0x0B] & 0x02) {
2064 bank_offset <<= 3;
2065 }
2066 bank_offset &= s->cirrus_addr_mask;
2067 mode = s->vga.gr[0x05] & 0x7;
2068 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2069 *(s->vga.vram_ptr + bank_offset) = mem_value;
2070 cpu_physical_memory_set_dirty(s->vga.vram_offset +
2071 bank_offset);
2072 } else {
2073 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2074 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2075 bank_offset,
2076 mem_value);
2077 } else {
2078 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2079 bank_offset,
2080 mem_value);
2081 }
2082 }
2083 }
2084 }
2085 } else if (addr >= 0x18000 && addr < 0x18100) {
2086 /* memory-mapped I/O */
2087 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2088 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2089 }
2090 } else {
2091 #ifdef DEBUG_CIRRUS
2092 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2093 mem_value);
2094 #endif
2095 }
2096 }
2097
2098 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2099 {
2100 #ifdef TARGET_WORDS_BIGENDIAN
2101 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2102 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2103 #else
2104 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2105 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2106 #endif
2107 }
2108
2109 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2110 {
2111 #ifdef TARGET_WORDS_BIGENDIAN
2112 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2113 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2114 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2115 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2116 #else
2117 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2118 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2119 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2120 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2121 #endif
2122 }
2123
2124 static CPUReadMemoryFunc * const cirrus_vga_mem_read[3] = {
2125 cirrus_vga_mem_readb,
2126 cirrus_vga_mem_readw,
2127 cirrus_vga_mem_readl,
2128 };
2129
2130 static CPUWriteMemoryFunc * const cirrus_vga_mem_write[3] = {
2131 cirrus_vga_mem_writeb,
2132 cirrus_vga_mem_writew,
2133 cirrus_vga_mem_writel,
2134 };
2135
2136 /***************************************
2137 *
2138 * hardware cursor
2139 *
2140 ***************************************/
2141
2142 static inline void invalidate_cursor1(CirrusVGAState *s)
2143 {
2144 if (s->last_hw_cursor_size) {
2145 vga_invalidate_scanlines(&s->vga,
2146 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2147 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2148 }
2149 }
2150
2151 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2152 {
2153 const uint8_t *src;
2154 uint32_t content;
2155 int y, y_min, y_max;
2156
2157 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2158 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2159 src += (s->vga.sr[0x13] & 0x3c) * 256;
2160 y_min = 64;
2161 y_max = -1;
2162 for(y = 0; y < 64; y++) {
2163 content = ((uint32_t *)src)[0] |
2164 ((uint32_t *)src)[1] |
2165 ((uint32_t *)src)[2] |
2166 ((uint32_t *)src)[3];
2167 if (content) {
2168 if (y < y_min)
2169 y_min = y;
2170 if (y > y_max)
2171 y_max = y;
2172 }
2173 src += 16;
2174 }
2175 } else {
2176 src += (s->vga.sr[0x13] & 0x3f) * 256;
2177 y_min = 32;
2178 y_max = -1;
2179 for(y = 0; y < 32; y++) {
2180 content = ((uint32_t *)src)[0] |
2181 ((uint32_t *)(src + 128))[0];
2182 if (content) {
2183 if (y < y_min)
2184 y_min = y;
2185 if (y > y_max)
2186 y_max = y;
2187 }
2188 src += 4;
2189 }
2190 }
2191 if (y_min > y_max) {
2192 s->last_hw_cursor_y_start = 0;
2193 s->last_hw_cursor_y_end = 0;
2194 } else {
2195 s->last_hw_cursor_y_start = y_min;
2196 s->last_hw_cursor_y_end = y_max + 1;
2197 }
2198 }
2199
2200 /* NOTE: we do not currently handle the cursor bitmap change, so we
2201 update the cursor only if it moves. */
2202 static void cirrus_cursor_invalidate(VGACommonState *s1)
2203 {
2204 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2205 int size;
2206
2207 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2208 size = 0;
2209 } else {
2210 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2211 size = 64;
2212 else
2213 size = 32;
2214 }
2215 /* invalidate last cursor and new cursor if any change */
2216 if (s->last_hw_cursor_size != size ||
2217 s->last_hw_cursor_x != s->hw_cursor_x ||
2218 s->last_hw_cursor_y != s->hw_cursor_y) {
2219
2220 invalidate_cursor1(s);
2221
2222 s->last_hw_cursor_size = size;
2223 s->last_hw_cursor_x = s->hw_cursor_x;
2224 s->last_hw_cursor_y = s->hw_cursor_y;
2225 /* compute the real cursor min and max y */
2226 cirrus_cursor_compute_yrange(s);
2227 invalidate_cursor1(s);
2228 }
2229 }
2230
2231 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2232 {
2233 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2234 int w, h, bpp, x1, x2, poffset;
2235 unsigned int color0, color1;
2236 const uint8_t *palette, *src;
2237 uint32_t content;
2238
2239 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2240 return;
2241 /* fast test to see if the cursor intersects with the scan line */
2242 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2243 h = 64;
2244 } else {
2245 h = 32;
2246 }
2247 if (scr_y < s->hw_cursor_y ||
2248 scr_y >= (s->hw_cursor_y + h))
2249 return;
2250
2251 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2252 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2253 src += (s->vga.sr[0x13] & 0x3c) * 256;
2254 src += (scr_y - s->hw_cursor_y) * 16;
2255 poffset = 8;
2256 content = ((uint32_t *)src)[0] |
2257 ((uint32_t *)src)[1] |
2258 ((uint32_t *)src)[2] |
2259 ((uint32_t *)src)[3];
2260 } else {
2261 src += (s->vga.sr[0x13] & 0x3f) * 256;
2262 src += (scr_y - s->hw_cursor_y) * 4;
2263 poffset = 128;
2264 content = ((uint32_t *)src)[0] |
2265 ((uint32_t *)(src + 128))[0];
2266 }
2267 /* if nothing to draw, no need to continue */
2268 if (!content)
2269 return;
2270 w = h;
2271
2272 x1 = s->hw_cursor_x;
2273 if (x1 >= s->vga.last_scr_width)
2274 return;
2275 x2 = s->hw_cursor_x + w;
2276 if (x2 > s->vga.last_scr_width)
2277 x2 = s->vga.last_scr_width;
2278 w = x2 - x1;
2279 palette = s->cirrus_hidden_palette;
2280 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2281 c6_to_8(palette[0x0 * 3 + 1]),
2282 c6_to_8(palette[0x0 * 3 + 2]));
2283 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2284 c6_to_8(palette[0xf * 3 + 1]),
2285 c6_to_8(palette[0xf * 3 + 2]));
2286 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2287 d1 += x1 * bpp;
2288 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2289 default:
2290 break;
2291 case 8:
2292 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2293 break;
2294 case 15:
2295 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2296 break;
2297 case 16:
2298 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2299 break;
2300 case 32:
2301 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2302 break;
2303 }
2304 }
2305
2306 /***************************************
2307 *
2308 * LFB memory access
2309 *
2310 ***************************************/
2311
2312 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2313 {
2314 CirrusVGAState *s = opaque;
2315 uint32_t ret;
2316
2317 addr &= s->cirrus_addr_mask;
2318
2319 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2320 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2321 /* memory-mapped I/O */
2322 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2323 } else if (0) {
2324 /* XXX handle bitblt */
2325 ret = 0xff;
2326 } else {
2327 /* video memory */
2328 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2329 addr <<= 4;
2330 } else if (s->vga.gr[0x0B] & 0x02) {
2331 addr <<= 3;
2332 }
2333 addr &= s->cirrus_addr_mask;
2334 ret = *(s->vga.vram_ptr + addr);
2335 }
2336
2337 return ret;
2338 }
2339
2340 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2341 {
2342 uint32_t v;
2343 #ifdef TARGET_WORDS_BIGENDIAN
2344 v = cirrus_linear_readb(opaque, addr) << 8;
2345 v |= cirrus_linear_readb(opaque, addr + 1);
2346 #else
2347 v = cirrus_linear_readb(opaque, addr);
2348 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2349 #endif
2350 return v;
2351 }
2352
2353 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2354 {
2355 uint32_t v;
2356 #ifdef TARGET_WORDS_BIGENDIAN
2357 v = cirrus_linear_readb(opaque, addr) << 24;
2358 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2359 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2360 v |= cirrus_linear_readb(opaque, addr + 3);
2361 #else
2362 v = cirrus_linear_readb(opaque, addr);
2363 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2364 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2365 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2366 #endif
2367 return v;
2368 }
2369
2370 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2371 uint32_t val)
2372 {
2373 CirrusVGAState *s = opaque;
2374 unsigned mode;
2375
2376 addr &= s->cirrus_addr_mask;
2377
2378 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2379 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2380 /* memory-mapped I/O */
2381 cirrus_mmio_blt_write(s, addr & 0xff, val);
2382 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2383 /* bitblt */
2384 *s->cirrus_srcptr++ = (uint8_t) val;
2385 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2386 cirrus_bitblt_cputovideo_next(s);
2387 }
2388 } else {
2389 /* video memory */
2390 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2391 addr <<= 4;
2392 } else if (s->vga.gr[0x0B] & 0x02) {
2393 addr <<= 3;
2394 }
2395 addr &= s->cirrus_addr_mask;
2396
2397 mode = s->vga.gr[0x05] & 0x7;
2398 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2399 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2400 cpu_physical_memory_set_dirty(s->vga.vram_offset + addr);
2401 } else {
2402 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2403 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2404 } else {
2405 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2406 }
2407 }
2408 }
2409 }
2410
2411 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2412 uint32_t val)
2413 {
2414 #ifdef TARGET_WORDS_BIGENDIAN
2415 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2416 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2417 #else
2418 cirrus_linear_writeb(opaque, addr, val & 0xff);
2419 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2420 #endif
2421 }
2422
2423 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2424 uint32_t val)
2425 {
2426 #ifdef TARGET_WORDS_BIGENDIAN
2427 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2428 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2429 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2430 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2431 #else
2432 cirrus_linear_writeb(opaque, addr, val & 0xff);
2433 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2434 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2435 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2436 #endif
2437 }
2438
2439
2440 static CPUReadMemoryFunc * const cirrus_linear_read[3] = {
2441 cirrus_linear_readb,
2442 cirrus_linear_readw,
2443 cirrus_linear_readl,
2444 };
2445
2446 static CPUWriteMemoryFunc * const cirrus_linear_write[3] = {
2447 cirrus_linear_writeb,
2448 cirrus_linear_writew,
2449 cirrus_linear_writel,
2450 };
2451
2452 /***************************************
2453 *
2454 * system to screen memory access
2455 *
2456 ***************************************/
2457
2458
2459 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2460 {
2461 uint32_t ret;
2462
2463 /* XXX handle bitblt */
2464 ret = 0xff;
2465 return ret;
2466 }
2467
2468 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2469 {
2470 uint32_t v;
2471 #ifdef TARGET_WORDS_BIGENDIAN
2472 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2473 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2474 #else
2475 v = cirrus_linear_bitblt_readb(opaque, addr);
2476 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2477 #endif
2478 return v;
2479 }
2480
2481 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2482 {
2483 uint32_t v;
2484 #ifdef TARGET_WORDS_BIGENDIAN
2485 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2486 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2487 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2488 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2489 #else
2490 v = cirrus_linear_bitblt_readb(opaque, addr);
2491 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2492 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2493 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2494 #endif
2495 return v;
2496 }
2497
2498 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2499 uint32_t val)
2500 {
2501 CirrusVGAState *s = opaque;
2502
2503 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2504 /* bitblt */
2505 *s->cirrus_srcptr++ = (uint8_t) val;
2506 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2507 cirrus_bitblt_cputovideo_next(s);
2508 }
2509 }
2510 }
2511
2512 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2513 uint32_t val)
2514 {
2515 #ifdef TARGET_WORDS_BIGENDIAN
2516 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2517 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2518 #else
2519 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2520 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2521 #endif
2522 }
2523
2524 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2525 uint32_t val)
2526 {
2527 #ifdef TARGET_WORDS_BIGENDIAN
2528 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2529 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2530 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2531 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2532 #else
2533 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2534 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2535 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2536 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2537 #endif
2538 }
2539
2540
2541 static CPUReadMemoryFunc * const cirrus_linear_bitblt_read[3] = {
2542 cirrus_linear_bitblt_readb,
2543 cirrus_linear_bitblt_readw,
2544 cirrus_linear_bitblt_readl,
2545 };
2546
2547 static CPUWriteMemoryFunc * const cirrus_linear_bitblt_write[3] = {
2548 cirrus_linear_bitblt_writeb,
2549 cirrus_linear_bitblt_writew,
2550 cirrus_linear_bitblt_writel,
2551 };
2552
2553 static void map_linear_vram(CirrusVGAState *s)
2554 {
2555 if (!s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
2556 s->vga.map_addr = s->vga.lfb_addr;
2557 s->vga.map_end = s->vga.lfb_end;
2558 cpu_register_physical_memory(s->vga.map_addr, s->vga.map_end - s->vga.map_addr, s->vga.vram_offset);
2559 }
2560
2561 if (!s->vga.map_addr)
2562 return;
2563
2564 s->vga.lfb_vram_mapped = 0;
2565
2566 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2567 && !((s->vga.sr[0x07] & 0x01) == 0)
2568 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2569 && !(s->vga.gr[0x0B] & 0x02)) {
2570
2571 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2572 (s->vga.vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2573 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2574 (s->vga.vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2575
2576 s->vga.lfb_vram_mapped = 1;
2577 }
2578 else {
2579 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2580 s->vga.vga_io_memory);
2581 }
2582
2583 vga_dirty_log_start(&s->vga);
2584 }
2585
2586 static void unmap_linear_vram(CirrusVGAState *s)
2587 {
2588 if (s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
2589 s->vga.map_addr = s->vga.map_end = 0;
2590 cpu_register_physical_memory(s->vga.lfb_addr, s->vga.vram_size,
2591 s->cirrus_linear_io_addr);
2592 }
2593 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2594 s->vga.vga_io_memory);
2595 }
2596
2597 /* Compute the memory access functions */
2598 static void cirrus_update_memory_access(CirrusVGAState *s)
2599 {
2600 unsigned mode;
2601
2602 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2603 goto generic_io;
2604 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2605 goto generic_io;
2606 } else {
2607 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2608 goto generic_io;
2609 } else if (s->vga.gr[0x0B] & 0x02) {
2610 goto generic_io;
2611 }
2612
2613 mode = s->vga.gr[0x05] & 0x7;
2614 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2615 map_linear_vram(s);
2616 } else {
2617 generic_io:
2618 unmap_linear_vram(s);
2619 }
2620 }
2621 }
2622
2623
2624 /* I/O ports */
2625
2626 static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
2627 {
2628 CirrusVGAState *c = opaque;
2629 VGACommonState *s = &c->vga;
2630 int val, index;
2631
2632 if (vga_ioport_invalid(s, addr)) {
2633 val = 0xff;
2634 } else {
2635 switch (addr) {
2636 case 0x3c0:
2637 if (s->ar_flip_flop == 0) {
2638 val = s->ar_index;
2639 } else {
2640 val = 0;
2641 }
2642 break;
2643 case 0x3c1:
2644 index = s->ar_index & 0x1f;
2645 if (index < 21)
2646 val = s->ar[index];
2647 else
2648 val = 0;
2649 break;
2650 case 0x3c2:
2651 val = s->st00;
2652 break;
2653 case 0x3c4:
2654 val = s->sr_index;
2655 break;
2656 case 0x3c5:
2657 val = cirrus_vga_read_sr(c);
2658 break;
2659 #ifdef DEBUG_VGA_REG
2660 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2661 #endif
2662 break;
2663 case 0x3c6:
2664 val = cirrus_read_hidden_dac(c);
2665 break;
2666 case 0x3c7:
2667 val = s->dac_state;
2668 break;
2669 case 0x3c8:
2670 val = s->dac_write_index;
2671 c->cirrus_hidden_dac_lockindex = 0;
2672 break;
2673 case 0x3c9:
2674 val = cirrus_vga_read_palette(c);
2675 break;
2676 case 0x3ca:
2677 val = s->fcr;
2678 break;
2679 case 0x3cc:
2680 val = s->msr;
2681 break;
2682 case 0x3ce:
2683 val = s->gr_index;
2684 break;
2685 case 0x3cf:
2686 val = cirrus_vga_read_gr(c, s->gr_index);
2687 #ifdef DEBUG_VGA_REG
2688 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2689 #endif
2690 break;
2691 case 0x3b4:
2692 case 0x3d4:
2693 val = s->cr_index;
2694 break;
2695 case 0x3b5:
2696 case 0x3d5:
2697 val = cirrus_vga_read_cr(c, s->cr_index);
2698 #ifdef DEBUG_VGA_REG
2699 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2700 #endif
2701 break;
2702 case 0x3ba:
2703 case 0x3da:
2704 /* just toggle to fool polling */
2705 val = s->st01 = s->retrace(s);
2706 s->ar_flip_flop = 0;
2707 break;
2708 default:
2709 val = 0x00;
2710 break;
2711 }
2712 }
2713 #if defined(DEBUG_VGA)
2714 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2715 #endif
2716 return val;
2717 }
2718
2719 static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2720 {
2721 CirrusVGAState *c = opaque;
2722 VGACommonState *s = &c->vga;
2723 int index;
2724
2725 /* check port range access depending on color/monochrome mode */
2726 if (vga_ioport_invalid(s, addr)) {
2727 return;
2728 }
2729 #ifdef DEBUG_VGA
2730 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2731 #endif
2732
2733 switch (addr) {
2734 case 0x3c0:
2735 if (s->ar_flip_flop == 0) {
2736 val &= 0x3f;
2737 s->ar_index = val;
2738 } else {
2739 index = s->ar_index & 0x1f;
2740 switch (index) {
2741 case 0x00 ... 0x0f:
2742 s->ar[index] = val & 0x3f;
2743 break;
2744 case 0x10:
2745 s->ar[index] = val & ~0x10;
2746 break;
2747 case 0x11:
2748 s->ar[index] = val;
2749 break;
2750 case 0x12:
2751 s->ar[index] = val & ~0xc0;
2752 break;
2753 case 0x13:
2754 s->ar[index] = val & ~0xf0;
2755 break;
2756 case 0x14:
2757 s->ar[index] = val & ~0xf0;
2758 break;
2759 default:
2760 break;
2761 }
2762 }
2763 s->ar_flip_flop ^= 1;
2764 break;
2765 case 0x3c2:
2766 s->msr = val & ~0x10;
2767 s->update_retrace_info(s);
2768 break;
2769 case 0x3c4:
2770 s->sr_index = val;
2771 break;
2772 case 0x3c5:
2773 #ifdef DEBUG_VGA_REG
2774 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2775 #endif
2776 cirrus_vga_write_sr(c, val);
2777 break;
2778 break;
2779 case 0x3c6:
2780 cirrus_write_hidden_dac(c, val);
2781 break;
2782 case 0x3c7:
2783 s->dac_read_index = val;
2784 s->dac_sub_index = 0;
2785 s->dac_state = 3;
2786 break;
2787 case 0x3c8:
2788 s->dac_write_index = val;
2789 s->dac_sub_index = 0;
2790 s->dac_state = 0;
2791 break;
2792 case 0x3c9:
2793 cirrus_vga_write_palette(c, val);
2794 break;
2795 case 0x3ce:
2796 s->gr_index = val;
2797 break;
2798 case 0x3cf:
2799 #ifdef DEBUG_VGA_REG
2800 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2801 #endif
2802 cirrus_vga_write_gr(c, s->gr_index, val);
2803 break;
2804 case 0x3b4:
2805 case 0x3d4:
2806 s->cr_index = val;
2807 break;
2808 case 0x3b5:
2809 case 0x3d5:
2810 #ifdef DEBUG_VGA_REG
2811 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2812 #endif
2813 cirrus_vga_write_cr(c, val);
2814 break;
2815 case 0x3ba:
2816 case 0x3da:
2817 s->fcr = val & 0x10;
2818 break;
2819 }
2820 }
2821
2822 /***************************************
2823 *
2824 * memory-mapped I/O access
2825 *
2826 ***************************************/
2827
2828 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2829 {
2830 CirrusVGAState *s = opaque;
2831
2832 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2833
2834 if (addr >= 0x100) {
2835 return cirrus_mmio_blt_read(s, addr - 0x100);
2836 } else {
2837 return cirrus_vga_ioport_read(s, addr + 0x3c0);
2838 }
2839 }
2840
2841 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2842 {
2843 uint32_t v;
2844 #ifdef TARGET_WORDS_BIGENDIAN
2845 v = cirrus_mmio_readb(opaque, addr) << 8;
2846 v |= cirrus_mmio_readb(opaque, addr + 1);
2847 #else
2848 v = cirrus_mmio_readb(opaque, addr);
2849 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2850 #endif
2851 return v;
2852 }
2853
2854 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2855 {
2856 uint32_t v;
2857 #ifdef TARGET_WORDS_BIGENDIAN
2858 v = cirrus_mmio_readb(opaque, addr) << 24;
2859 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2860 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2861 v |= cirrus_mmio_readb(opaque, addr + 3);
2862 #else
2863 v = cirrus_mmio_readb(opaque, addr);
2864 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2865 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2866 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2867 #endif
2868 return v;
2869 }
2870
2871 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2872 uint32_t val)
2873 {
2874 CirrusVGAState *s = opaque;
2875
2876 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2877
2878 if (addr >= 0x100) {
2879 cirrus_mmio_blt_write(s, addr - 0x100, val);
2880 } else {
2881 cirrus_vga_ioport_write(s, addr + 0x3c0, val);
2882 }
2883 }
2884
2885 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2886 uint32_t val)
2887 {
2888 #ifdef TARGET_WORDS_BIGENDIAN
2889 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2890 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2891 #else
2892 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2893 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2894 #endif
2895 }
2896
2897 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
2898 uint32_t val)
2899 {
2900 #ifdef TARGET_WORDS_BIGENDIAN
2901 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
2902 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2903 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2904 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
2905 #else
2906 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2907 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2908 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2909 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2910 #endif
2911 }
2912
2913
2914 static CPUReadMemoryFunc * const cirrus_mmio_read[3] = {
2915 cirrus_mmio_readb,
2916 cirrus_mmio_readw,
2917 cirrus_mmio_readl,
2918 };
2919
2920 static CPUWriteMemoryFunc * const cirrus_mmio_write[3] = {
2921 cirrus_mmio_writeb,
2922 cirrus_mmio_writew,
2923 cirrus_mmio_writel,
2924 };
2925
2926 /* load/save state */
2927
2928 static int cirrus_post_load(void *opaque, int version_id)
2929 {
2930 CirrusVGAState *s = opaque;
2931
2932 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2933 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2934
2935 cirrus_update_memory_access(s);
2936 /* force refresh */
2937 s->vga.graphic_mode = -1;
2938 cirrus_update_bank_ptr(s, 0);
2939 cirrus_update_bank_ptr(s, 1);
2940 return 0;
2941 }
2942
2943 static const VMStateDescription vmstate_cirrus_vga = {
2944 .name = "cirrus_vga",
2945 .version_id = 2,
2946 .minimum_version_id = 1,
2947 .minimum_version_id_old = 1,
2948 .post_load = cirrus_post_load,
2949 .fields = (VMStateField []) {
2950 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2951 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2952 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2953 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2954 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2955 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2956 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2957 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2958 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2959 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2960 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2961 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2962 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2963 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2964 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2965 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2966 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2967 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2968 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2969 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2970 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2971 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2972 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2973 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2974 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2975 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
2976 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
2977 /* XXX: we do not save the bitblt state - we assume we do not save
2978 the state when the blitter is active */
2979 VMSTATE_END_OF_LIST()
2980 }
2981 };
2982
2983 static const VMStateDescription vmstate_pci_cirrus_vga = {
2984 .name = "cirrus_vga",
2985 .version_id = 2,
2986 .minimum_version_id = 2,
2987 .minimum_version_id_old = 2,
2988 .fields = (VMStateField []) {
2989 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2990 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2991 vmstate_cirrus_vga, CirrusVGAState),
2992 VMSTATE_END_OF_LIST()
2993 }
2994 };
2995
2996 /***************************************
2997 *
2998 * initialize
2999 *
3000 ***************************************/
3001
3002 static void cirrus_reset(void *opaque)
3003 {
3004 CirrusVGAState *s = opaque;
3005
3006 vga_common_reset(&s->vga);
3007 unmap_linear_vram(s);
3008 s->vga.sr[0x06] = 0x0f;
3009 if (s->device_id == CIRRUS_ID_CLGD5446) {
3010 /* 4MB 64 bit memory config, always PCI */
3011 s->vga.sr[0x1F] = 0x2d; // MemClock
3012 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
3013 s->vga.sr[0x0f] = 0x98;
3014 s->vga.sr[0x17] = 0x20;
3015 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3016 } else {
3017 s->vga.sr[0x1F] = 0x22; // MemClock
3018 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
3019 s->vga.sr[0x17] = s->bustype;
3020 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3021 }
3022 s->vga.cr[0x27] = s->device_id;
3023
3024 /* Win2K seems to assume that the pattern buffer is at 0xff
3025 initially ! */
3026 memset(s->vga.vram_ptr, 0xff, s->real_vram_size);
3027
3028 s->cirrus_hidden_dac_lockindex = 5;
3029 s->cirrus_hidden_dac_data = 0;
3030 }
3031
3032 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3033 {
3034 int i;
3035 static int inited;
3036
3037 if (!inited) {
3038 inited = 1;
3039 for(i = 0;i < 256; i++)
3040 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3041 rop_to_index[CIRRUS_ROP_0] = 0;
3042 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3043 rop_to_index[CIRRUS_ROP_NOP] = 2;
3044 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3045 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3046 rop_to_index[CIRRUS_ROP_SRC] = 5;
3047 rop_to_index[CIRRUS_ROP_1] = 6;
3048 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3049 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3050 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3051 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3052 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3053 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3054 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3055 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3056 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3057 s->device_id = device_id;
3058 if (is_pci)
3059 s->bustype = CIRRUS_BUSTYPE_PCI;
3060 else
3061 s->bustype = CIRRUS_BUSTYPE_ISA;
3062 }
3063
3064 register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
3065
3066 register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
3067 register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
3068 register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
3069 register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
3070
3071 register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
3072
3073 register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
3074 register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
3075 register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
3076 register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
3077
3078 s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
3079 cirrus_vga_mem_write, s);
3080 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3081 s->vga.vga_io_memory);
3082 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3083
3084 /* I/O handler for LFB */
3085 s->cirrus_linear_io_addr =
3086 cpu_register_io_memory(cirrus_linear_read, cirrus_linear_write, s);
3087
3088 /* I/O handler for LFB */
3089 s->cirrus_linear_bitblt_io_addr =
3090 cpu_register_io_memory(cirrus_linear_bitblt_read,
3091 cirrus_linear_bitblt_write, s);
3092
3093 /* I/O handler for memory-mapped I/O */
3094 s->cirrus_mmio_io_addr =
3095 cpu_register_io_memory(cirrus_mmio_read, cirrus_mmio_write, s);
3096
3097 s->real_vram_size =
3098 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
3099
3100 /* XXX: s->vga.vram_size must be a power of two */
3101 s->cirrus_addr_mask = s->real_vram_size - 1;
3102 s->linear_mmio_mask = s->real_vram_size - 256;
3103
3104 s->vga.get_bpp = cirrus_get_bpp;
3105 s->vga.get_offsets = cirrus_get_offsets;
3106 s->vga.get_resolution = cirrus_get_resolution;
3107 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
3108 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
3109
3110 qemu_register_reset(cirrus_reset, s);
3111 cirrus_reset(s);
3112 }
3113
3114 /***************************************
3115 *
3116 * ISA bus support
3117 *
3118 ***************************************/
3119
3120 void isa_cirrus_vga_init(void)
3121 {
3122 CirrusVGAState *s;
3123
3124 s = qemu_mallocz(sizeof(CirrusVGAState));
3125
3126 vga_common_init(&s->vga, VGA_RAM_SIZE);
3127 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3128 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3129 s->vga.screen_dump, s->vga.text_update,
3130 &s->vga);
3131 vmstate_register(0, &vmstate_cirrus_vga, s);
3132 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
3133 /* XXX ISA-LFB support */
3134 }
3135
3136 /***************************************
3137 *
3138 * PCI bus support
3139 *
3140 ***************************************/
3141
3142 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3143 pcibus_t addr, pcibus_t size, int type)
3144 {
3145 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3146
3147 /* XXX: add byte swapping apertures */
3148 cpu_register_physical_memory(addr, s->vga.vram_size,
3149 s->cirrus_linear_io_addr);
3150 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3151 s->cirrus_linear_bitblt_io_addr);
3152
3153 s->vga.map_addr = s->vga.map_end = 0;
3154 s->vga.lfb_addr = addr & TARGET_PAGE_MASK;
3155 s->vga.lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3156 /* account for overflow */
3157 if (s->vga.lfb_end < addr + VGA_RAM_SIZE)
3158 s->vga.lfb_end = addr + VGA_RAM_SIZE;
3159
3160 vga_dirty_log_start(&s->vga);
3161 }
3162
3163 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3164 pcibus_t addr, pcibus_t size, int type)
3165 {
3166 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3167
3168 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3169 s->cirrus_mmio_io_addr);
3170 }
3171
3172 static void pci_cirrus_write_config(PCIDevice *d,
3173 uint32_t address, uint32_t val, int len)
3174 {
3175 PCICirrusVGAState *pvs = DO_UPCAST(PCICirrusVGAState, dev, d);
3176 CirrusVGAState *s = &pvs->cirrus_vga;
3177
3178 pci_default_write_config(d, address, val, len);
3179 if (s->vga.map_addr && d->io_regions[0].addr == PCI_BAR_UNMAPPED)
3180 s->vga.map_addr = 0;
3181 cirrus_update_memory_access(s);
3182 }
3183
3184 static int pci_cirrus_vga_initfn(PCIDevice *dev)
3185 {
3186 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
3187 CirrusVGAState *s = &d->cirrus_vga;
3188 uint8_t *pci_conf = d->dev.config;
3189 int device_id = CIRRUS_ID_CLGD5446;
3190
3191 /* setup VGA */
3192 vga_common_init(&s->vga, VGA_RAM_SIZE);
3193 cirrus_init_common(s, device_id, 1);
3194 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3195 s->vga.screen_dump, s->vga.text_update,
3196 &s->vga);
3197
3198 /* setup PCI */
3199 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CIRRUS);
3200 pci_config_set_device_id(pci_conf, device_id);
3201 pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
3202
3203 /* setup memory space */
3204 /* memory #0 LFB */
3205 /* memory #1 memory-mapped I/O */
3206 /* XXX: s->vga.vram_size must be a power of two */
3207 pci_register_bar((PCIDevice *)d, 0, 0x2000000,
3208 PCI_BASE_ADDRESS_MEM_PREFETCH, cirrus_pci_lfb_map);
3209 if (device_id == CIRRUS_ID_CLGD5446) {
3210 pci_register_bar((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3211 PCI_BASE_ADDRESS_SPACE_MEMORY, cirrus_pci_mmio_map);
3212 }
3213 return 0;
3214 }
3215
3216 void pci_cirrus_vga_init(PCIBus *bus)
3217 {
3218 pci_create_simple(bus, -1, "cirrus-vga");
3219 }
3220
3221 static PCIDeviceInfo cirrus_vga_info = {
3222 .qdev.name = "cirrus-vga",
3223 .qdev.desc = "Cirrus CLGD 54xx VGA",
3224 .qdev.size = sizeof(PCICirrusVGAState),
3225 .qdev.vmsd = &vmstate_pci_cirrus_vga,
3226 .init = pci_cirrus_vga_initfn,
3227 .romfile = VGABIOS_CIRRUS_FILENAME,
3228 .config_write = pci_cirrus_write_config,
3229 };
3230
3231 static void cirrus_vga_register(void)
3232 {
3233 pci_qdev_register(&cirrus_vga_info);
3234 }
3235 device_init(cirrus_vga_register);
QEmu