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move hw cursor pos from cirrus to vga
[qemu.git] / hw / display / cirrus_vga.c
blob3a53f2039241ad459d7db8d6787dfd271a8f361b
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 /*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "hw/hw.h"
30 #include "hw/pci/pci.h"
31 #include "ui/console.h"
32 #include "ui/pixel_ops.h"
33 #include "vga_int.h"
34 #include "hw/loader.h"
35
36 /*
37 * TODO:
38 * - destination write mask support not complete (bits 5..7)
39 * - optimize linear mappings
40 * - optimize bitblt functions
41 */
42
43 //#define DEBUG_CIRRUS
44 //#define DEBUG_BITBLT
45
46 /***************************************
47 *
48 * definitions
49 *
50 ***************************************/
51
52 // ID
53 #define CIRRUS_ID_CLGD5422 (0x23<<2)
54 #define CIRRUS_ID_CLGD5426 (0x24<<2)
55 #define CIRRUS_ID_CLGD5424 (0x25<<2)
56 #define CIRRUS_ID_CLGD5428 (0x26<<2)
57 #define CIRRUS_ID_CLGD5430 (0x28<<2)
58 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
59 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
60 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
61
62 // sequencer 0x07
63 #define CIRRUS_SR7_BPP_VGA 0x00
64 #define CIRRUS_SR7_BPP_SVGA 0x01
65 #define CIRRUS_SR7_BPP_MASK 0x0e
66 #define CIRRUS_SR7_BPP_8 0x00
67 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
68 #define CIRRUS_SR7_BPP_24 0x04
69 #define CIRRUS_SR7_BPP_16 0x06
70 #define CIRRUS_SR7_BPP_32 0x08
71 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
72
73 // sequencer 0x0f
74 #define CIRRUS_MEMSIZE_512k 0x08
75 #define CIRRUS_MEMSIZE_1M 0x10
76 #define CIRRUS_MEMSIZE_2M 0x18
77 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
78
79 // sequencer 0x12
80 #define CIRRUS_CURSOR_SHOW 0x01
81 #define CIRRUS_CURSOR_HIDDENPEL 0x02
82 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
83
84 // sequencer 0x17
85 #define CIRRUS_BUSTYPE_VLBFAST 0x10
86 #define CIRRUS_BUSTYPE_PCI 0x20
87 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
88 #define CIRRUS_BUSTYPE_ISA 0x38
89 #define CIRRUS_MMIO_ENABLE 0x04
90 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
91 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
92
93 // control 0x0b
94 #define CIRRUS_BANKING_DUAL 0x01
95 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
96
97 // control 0x30
98 #define CIRRUS_BLTMODE_BACKWARDS 0x01
99 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
100 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
101 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
102 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
103 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
104 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
105 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
106 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
107 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
108 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
109
110 // control 0x31
111 #define CIRRUS_BLT_BUSY 0x01
112 #define CIRRUS_BLT_START 0x02
113 #define CIRRUS_BLT_RESET 0x04
114 #define CIRRUS_BLT_FIFOUSED 0x10
115 #define CIRRUS_BLT_AUTOSTART 0x80
116
117 // control 0x32
118 #define CIRRUS_ROP_0 0x00
119 #define CIRRUS_ROP_SRC_AND_DST 0x05
120 #define CIRRUS_ROP_NOP 0x06
121 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
122 #define CIRRUS_ROP_NOTDST 0x0b
123 #define CIRRUS_ROP_SRC 0x0d
124 #define CIRRUS_ROP_1 0x0e
125 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
126 #define CIRRUS_ROP_SRC_XOR_DST 0x59
127 #define CIRRUS_ROP_SRC_OR_DST 0x6d
128 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
129 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
130 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
131 #define CIRRUS_ROP_NOTSRC 0xd0
132 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
133 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
134
135 #define CIRRUS_ROP_NOP_INDEX 2
136 #define CIRRUS_ROP_SRC_INDEX 5
137
138 // control 0x33
139 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
140 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
141 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
142
143 // memory-mapped IO
144 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
145 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
146 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
147 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
148 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
149 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
150 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
151 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
152 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
153 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
154 #define CIRRUS_MMIO_BLTROP 0x1a // byte
155 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
156 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
157 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
158 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
159 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
160 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
161 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
162 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
166 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
167 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
168 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
169 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
170 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
171 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
172 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
173
174 #define CIRRUS_PNPMMIO_SIZE 0x1000
175
176 struct CirrusVGAState;
177 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
178 uint8_t * dst, const uint8_t * src,
179 int dstpitch, int srcpitch,
180 int bltwidth, int bltheight);
181 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
182 uint8_t *dst, int dst_pitch, int width, int height);
183
184 typedef struct CirrusVGAState {
185 VGACommonState vga;
186
187 MemoryRegion cirrus_vga_io;
188 MemoryRegion cirrus_linear_io;
189 MemoryRegion cirrus_linear_bitblt_io;
190 MemoryRegion cirrus_mmio_io;
191 MemoryRegion pci_bar;
192 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
193 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
194 MemoryRegion low_mem; /* always mapped, overridden by: */
195 MemoryRegion cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
196 uint32_t cirrus_addr_mask;
197 uint32_t linear_mmio_mask;
198 uint8_t cirrus_shadow_gr0;
199 uint8_t cirrus_shadow_gr1;
200 uint8_t cirrus_hidden_dac_lockindex;
201 uint8_t cirrus_hidden_dac_data;
202 uint32_t cirrus_bank_base[2];
203 uint32_t cirrus_bank_limit[2];
204 uint8_t cirrus_hidden_palette[48];
205 int cirrus_blt_pixelwidth;
206 int cirrus_blt_width;
207 int cirrus_blt_height;
208 int cirrus_blt_dstpitch;
209 int cirrus_blt_srcpitch;
210 uint32_t cirrus_blt_fgcol;
211 uint32_t cirrus_blt_bgcol;
212 uint32_t cirrus_blt_dstaddr;
213 uint32_t cirrus_blt_srcaddr;
214 uint8_t cirrus_blt_mode;
215 uint8_t cirrus_blt_modeext;
216 cirrus_bitblt_rop_t cirrus_rop;
217 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
218 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
219 uint8_t *cirrus_srcptr;
220 uint8_t *cirrus_srcptr_end;
221 uint32_t cirrus_srccounter;
222 /* hwcursor display state */
223 int last_hw_cursor_size;
224 int last_hw_cursor_x;
225 int last_hw_cursor_y;
226 int last_hw_cursor_y_start;
227 int last_hw_cursor_y_end;
228 int real_vram_size; /* XXX: suppress that */
229 int device_id;
230 int bustype;
231 } CirrusVGAState;
232
233 typedef struct PCICirrusVGAState {
234 PCIDevice dev;
235 CirrusVGAState cirrus_vga;
236 } PCICirrusVGAState;
237
238 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
239 #define ISA_CIRRUS_VGA(obj) \
240 OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
241
242 typedef struct ISACirrusVGAState {
243 ISADevice parent_obj;
244
245 CirrusVGAState cirrus_vga;
246 } ISACirrusVGAState;
247
248 static uint8_t rop_to_index[256];
249
250 /***************************************
251 *
252 * prototypes.
253 *
254 ***************************************/
255
256
257 static void cirrus_bitblt_reset(CirrusVGAState *s);
258 static void cirrus_update_memory_access(CirrusVGAState *s);
259
260 /***************************************
261 *
262 * raster operations
263 *
264 ***************************************/
265
266 static bool blit_region_is_unsafe(struct CirrusVGAState *s,
267 int32_t pitch, int32_t addr)
268 {
269 if (pitch < 0) {
270 int64_t min = addr
271 + ((int64_t)s->cirrus_blt_height-1) * pitch;
272 int32_t max = addr
273 + s->cirrus_blt_width;
274 if (min < 0 || max >= s->vga.vram_size) {
275 return true;
276 }
277 } else {
278 int64_t max = addr
279 + ((int64_t)s->cirrus_blt_height-1) * pitch
280 + s->cirrus_blt_width;
281 if (max >= s->vga.vram_size) {
282 return true;
283 }
284 }
285 return false;
286 }
287
288 static bool blit_is_unsafe(struct CirrusVGAState *s)
289 {
290 /* should be the case, see cirrus_bitblt_start */
291 assert(s->cirrus_blt_width > 0);
292 assert(s->cirrus_blt_height > 0);
293
294 if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
295 return true;
296 }
297
298 if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
299 s->cirrus_blt_dstaddr & s->cirrus_addr_mask)) {
300 return true;
301 }
302 if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
303 s->cirrus_blt_srcaddr & s->cirrus_addr_mask)) {
304 return true;
305 }
306
307 return false;
308 }
309
310 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
311 uint8_t *dst,const uint8_t *src,
312 int dstpitch,int srcpitch,
313 int bltwidth,int bltheight)
314 {
315 }
316
317 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
318 uint8_t *dst,
319 int dstpitch, int bltwidth,int bltheight)
320 {
321 }
322
323 #define ROP_NAME 0
324 #define ROP_FN(d, s) 0
325 #include "cirrus_vga_rop.h"
326
327 #define ROP_NAME src_and_dst
328 #define ROP_FN(d, s) (s) & (d)
329 #include "cirrus_vga_rop.h"
330
331 #define ROP_NAME src_and_notdst
332 #define ROP_FN(d, s) (s) & (~(d))
333 #include "cirrus_vga_rop.h"
334
335 #define ROP_NAME notdst
336 #define ROP_FN(d, s) ~(d)
337 #include "cirrus_vga_rop.h"
338
339 #define ROP_NAME src
340 #define ROP_FN(d, s) s
341 #include "cirrus_vga_rop.h"
342
343 #define ROP_NAME 1
344 #define ROP_FN(d, s) ~0
345 #include "cirrus_vga_rop.h"
346
347 #define ROP_NAME notsrc_and_dst
348 #define ROP_FN(d, s) (~(s)) & (d)
349 #include "cirrus_vga_rop.h"
350
351 #define ROP_NAME src_xor_dst
352 #define ROP_FN(d, s) (s) ^ (d)
353 #include "cirrus_vga_rop.h"
354
355 #define ROP_NAME src_or_dst
356 #define ROP_FN(d, s) (s) | (d)
357 #include "cirrus_vga_rop.h"
358
359 #define ROP_NAME notsrc_or_notdst
360 #define ROP_FN(d, s) (~(s)) | (~(d))
361 #include "cirrus_vga_rop.h"
362
363 #define ROP_NAME src_notxor_dst
364 #define ROP_FN(d, s) ~((s) ^ (d))
365 #include "cirrus_vga_rop.h"
366
367 #define ROP_NAME src_or_notdst
368 #define ROP_FN(d, s) (s) | (~(d))
369 #include "cirrus_vga_rop.h"
370
371 #define ROP_NAME notsrc
372 #define ROP_FN(d, s) (~(s))
373 #include "cirrus_vga_rop.h"
374
375 #define ROP_NAME notsrc_or_dst
376 #define ROP_FN(d, s) (~(s)) | (d)
377 #include "cirrus_vga_rop.h"
378
379 #define ROP_NAME notsrc_and_notdst
380 #define ROP_FN(d, s) (~(s)) & (~(d))
381 #include "cirrus_vga_rop.h"
382
383 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
384 cirrus_bitblt_rop_fwd_0,
385 cirrus_bitblt_rop_fwd_src_and_dst,
386 cirrus_bitblt_rop_nop,
387 cirrus_bitblt_rop_fwd_src_and_notdst,
388 cirrus_bitblt_rop_fwd_notdst,
389 cirrus_bitblt_rop_fwd_src,
390 cirrus_bitblt_rop_fwd_1,
391 cirrus_bitblt_rop_fwd_notsrc_and_dst,
392 cirrus_bitblt_rop_fwd_src_xor_dst,
393 cirrus_bitblt_rop_fwd_src_or_dst,
394 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
395 cirrus_bitblt_rop_fwd_src_notxor_dst,
396 cirrus_bitblt_rop_fwd_src_or_notdst,
397 cirrus_bitblt_rop_fwd_notsrc,
398 cirrus_bitblt_rop_fwd_notsrc_or_dst,
399 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
400 };
401
402 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
403 cirrus_bitblt_rop_bkwd_0,
404 cirrus_bitblt_rop_bkwd_src_and_dst,
405 cirrus_bitblt_rop_nop,
406 cirrus_bitblt_rop_bkwd_src_and_notdst,
407 cirrus_bitblt_rop_bkwd_notdst,
408 cirrus_bitblt_rop_bkwd_src,
409 cirrus_bitblt_rop_bkwd_1,
410 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
411 cirrus_bitblt_rop_bkwd_src_xor_dst,
412 cirrus_bitblt_rop_bkwd_src_or_dst,
413 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
414 cirrus_bitblt_rop_bkwd_src_notxor_dst,
415 cirrus_bitblt_rop_bkwd_src_or_notdst,
416 cirrus_bitblt_rop_bkwd_notsrc,
417 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
418 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
419 };
420
421 #define TRANSP_ROP(name) {\
422 name ## _8,\
423 name ## _16,\
424 }
425 #define TRANSP_NOP(func) {\
426 func,\
427 func,\
428 }
429
430 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
432 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
433 TRANSP_NOP(cirrus_bitblt_rop_nop),
434 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
435 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
436 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
447 };
448
449 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
451 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
452 TRANSP_NOP(cirrus_bitblt_rop_nop),
453 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
454 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
455 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
465 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
466 };
467
468 #define ROP2(name) {\
469 name ## _8,\
470 name ## _16,\
471 name ## _24,\
472 name ## _32,\
473 }
474
475 #define ROP_NOP2(func) {\
476 func,\
477 func,\
478 func,\
479 func,\
480 }
481
482 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
483 ROP2(cirrus_patternfill_0),
484 ROP2(cirrus_patternfill_src_and_dst),
485 ROP_NOP2(cirrus_bitblt_rop_nop),
486 ROP2(cirrus_patternfill_src_and_notdst),
487 ROP2(cirrus_patternfill_notdst),
488 ROP2(cirrus_patternfill_src),
489 ROP2(cirrus_patternfill_1),
490 ROP2(cirrus_patternfill_notsrc_and_dst),
491 ROP2(cirrus_patternfill_src_xor_dst),
492 ROP2(cirrus_patternfill_src_or_dst),
493 ROP2(cirrus_patternfill_notsrc_or_notdst),
494 ROP2(cirrus_patternfill_src_notxor_dst),
495 ROP2(cirrus_patternfill_src_or_notdst),
496 ROP2(cirrus_patternfill_notsrc),
497 ROP2(cirrus_patternfill_notsrc_or_dst),
498 ROP2(cirrus_patternfill_notsrc_and_notdst),
499 };
500
501 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
502 ROP2(cirrus_colorexpand_transp_0),
503 ROP2(cirrus_colorexpand_transp_src_and_dst),
504 ROP_NOP2(cirrus_bitblt_rop_nop),
505 ROP2(cirrus_colorexpand_transp_src_and_notdst),
506 ROP2(cirrus_colorexpand_transp_notdst),
507 ROP2(cirrus_colorexpand_transp_src),
508 ROP2(cirrus_colorexpand_transp_1),
509 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
510 ROP2(cirrus_colorexpand_transp_src_xor_dst),
511 ROP2(cirrus_colorexpand_transp_src_or_dst),
512 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
513 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
514 ROP2(cirrus_colorexpand_transp_src_or_notdst),
515 ROP2(cirrus_colorexpand_transp_notsrc),
516 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
517 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
518 };
519
520 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
521 ROP2(cirrus_colorexpand_0),
522 ROP2(cirrus_colorexpand_src_and_dst),
523 ROP_NOP2(cirrus_bitblt_rop_nop),
524 ROP2(cirrus_colorexpand_src_and_notdst),
525 ROP2(cirrus_colorexpand_notdst),
526 ROP2(cirrus_colorexpand_src),
527 ROP2(cirrus_colorexpand_1),
528 ROP2(cirrus_colorexpand_notsrc_and_dst),
529 ROP2(cirrus_colorexpand_src_xor_dst),
530 ROP2(cirrus_colorexpand_src_or_dst),
531 ROP2(cirrus_colorexpand_notsrc_or_notdst),
532 ROP2(cirrus_colorexpand_src_notxor_dst),
533 ROP2(cirrus_colorexpand_src_or_notdst),
534 ROP2(cirrus_colorexpand_notsrc),
535 ROP2(cirrus_colorexpand_notsrc_or_dst),
536 ROP2(cirrus_colorexpand_notsrc_and_notdst),
537 };
538
539 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
540 ROP2(cirrus_colorexpand_pattern_transp_0),
541 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
542 ROP_NOP2(cirrus_bitblt_rop_nop),
543 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
544 ROP2(cirrus_colorexpand_pattern_transp_notdst),
545 ROP2(cirrus_colorexpand_pattern_transp_src),
546 ROP2(cirrus_colorexpand_pattern_transp_1),
547 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
548 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
549 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
550 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
551 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
552 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
553 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
554 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
555 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
556 };
557
558 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
559 ROP2(cirrus_colorexpand_pattern_0),
560 ROP2(cirrus_colorexpand_pattern_src_and_dst),
561 ROP_NOP2(cirrus_bitblt_rop_nop),
562 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
563 ROP2(cirrus_colorexpand_pattern_notdst),
564 ROP2(cirrus_colorexpand_pattern_src),
565 ROP2(cirrus_colorexpand_pattern_1),
566 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
567 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
568 ROP2(cirrus_colorexpand_pattern_src_or_dst),
569 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
570 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
571 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
572 ROP2(cirrus_colorexpand_pattern_notsrc),
573 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
574 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
575 };
576
577 static const cirrus_fill_t cirrus_fill[16][4] = {
578 ROP2(cirrus_fill_0),
579 ROP2(cirrus_fill_src_and_dst),
580 ROP_NOP2(cirrus_bitblt_fill_nop),
581 ROP2(cirrus_fill_src_and_notdst),
582 ROP2(cirrus_fill_notdst),
583 ROP2(cirrus_fill_src),
584 ROP2(cirrus_fill_1),
585 ROP2(cirrus_fill_notsrc_and_dst),
586 ROP2(cirrus_fill_src_xor_dst),
587 ROP2(cirrus_fill_src_or_dst),
588 ROP2(cirrus_fill_notsrc_or_notdst),
589 ROP2(cirrus_fill_src_notxor_dst),
590 ROP2(cirrus_fill_src_or_notdst),
591 ROP2(cirrus_fill_notsrc),
592 ROP2(cirrus_fill_notsrc_or_dst),
593 ROP2(cirrus_fill_notsrc_and_notdst),
594 };
595
596 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
597 {
598 unsigned int color;
599 switch (s->cirrus_blt_pixelwidth) {
600 case 1:
601 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
602 break;
603 case 2:
604 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
605 s->cirrus_blt_fgcol = le16_to_cpu(color);
606 break;
607 case 3:
608 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
609 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
610 break;
611 default:
612 case 4:
613 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
614 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
615 s->cirrus_blt_fgcol = le32_to_cpu(color);
616 break;
617 }
618 }
619
620 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
621 {
622 unsigned int color;
623 switch (s->cirrus_blt_pixelwidth) {
624 case 1:
625 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
626 break;
627 case 2:
628 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
629 s->cirrus_blt_bgcol = le16_to_cpu(color);
630 break;
631 case 3:
632 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
633 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
634 break;
635 default:
636 case 4:
637 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
638 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
639 s->cirrus_blt_bgcol = le32_to_cpu(color);
640 break;
641 }
642 }
643
644 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
645 int off_pitch, int bytesperline,
646 int lines)
647 {
648 int y;
649 int off_cur;
650 int off_cur_end;
651
652 for (y = 0; y < lines; y++) {
653 off_cur = off_begin;
654 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
655 memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur);
656 off_begin += off_pitch;
657 }
658 }
659
660 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
661 const uint8_t * src)
662 {
663 uint8_t *dst;
664
665 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
666
667 if (blit_is_unsafe(s))
668 return 0;
669
670 (*s->cirrus_rop) (s, dst, src,
671 s->cirrus_blt_dstpitch, 0,
672 s->cirrus_blt_width, s->cirrus_blt_height);
673 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
674 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
675 s->cirrus_blt_height);
676 return 1;
677 }
678
679 /* fill */
680
681 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
682 {
683 cirrus_fill_t rop_func;
684
685 if (blit_is_unsafe(s)) {
686 return 0;
687 }
688 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
689 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
690 s->cirrus_blt_dstpitch,
691 s->cirrus_blt_width, s->cirrus_blt_height);
692 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
693 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
694 s->cirrus_blt_height);
695 cirrus_bitblt_reset(s);
696 return 1;
697 }
698
699 /***************************************
700 *
701 * bitblt (video-to-video)
702 *
703 ***************************************/
704
705 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
706 {
707 return cirrus_bitblt_common_patterncopy(s,
708 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
709 s->cirrus_addr_mask));
710 }
711
712 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
713 {
714 int sx = 0, sy = 0;
715 int dx = 0, dy = 0;
716 int depth = 0;
717 int notify = 0;
718
719 /* make sure to only copy if it's a plain copy ROP */
720 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
721 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
722
723 int width, height;
724
725 depth = s->vga.get_bpp(&s->vga) / 8;
726 s->vga.get_resolution(&s->vga, &width, &height);
727
728 /* extra x, y */
729 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
730 sy = (src / ABS(s->cirrus_blt_srcpitch));
731 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
732 dy = (dst / ABS(s->cirrus_blt_dstpitch));
733
734 /* normalize width */
735 w /= depth;
736
737 /* if we're doing a backward copy, we have to adjust
738 our x/y to be the upper left corner (instead of the lower
739 right corner) */
740 if (s->cirrus_blt_dstpitch < 0) {
741 sx -= (s->cirrus_blt_width / depth) - 1;
742 dx -= (s->cirrus_blt_width / depth) - 1;
743 sy -= s->cirrus_blt_height - 1;
744 dy -= s->cirrus_blt_height - 1;
745 }
746
747 /* are we in the visible portion of memory? */
748 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
749 (sx + w) <= width && (sy + h) <= height &&
750 (dx + w) <= width && (dy + h) <= height) {
751 notify = 1;
752 }
753 }
754
755 /* we have to flush all pending changes so that the copy
756 is generated at the appropriate moment in time */
757 if (notify)
758 graphic_hw_update(s->vga.con);
759
760 (*s->cirrus_rop) (s, s->vga.vram_ptr +
761 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
762 s->vga.vram_ptr +
763 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
764 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
765 s->cirrus_blt_width, s->cirrus_blt_height);
766
767 if (notify) {
768 qemu_console_copy(s->vga.con,
769 sx, sy, dx, dy,
770 s->cirrus_blt_width / depth,
771 s->cirrus_blt_height);
772 }
773
774 /* we don't have to notify the display that this portion has
775 changed since qemu_console_copy implies this */
776
777 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
778 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
779 s->cirrus_blt_height);
780 }
781
782 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
783 {
784 if (blit_is_unsafe(s))
785 return 0;
786
787 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
788 s->cirrus_blt_srcaddr - s->vga.start_addr,
789 s->cirrus_blt_width, s->cirrus_blt_height);
790
791 return 1;
792 }
793
794 /***************************************
795 *
796 * bitblt (cpu-to-video)
797 *
798 ***************************************/
799
800 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
801 {
802 int copy_count;
803 uint8_t *end_ptr;
804
805 if (s->cirrus_srccounter > 0) {
806 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
807 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
808 the_end:
809 s->cirrus_srccounter = 0;
810 cirrus_bitblt_reset(s);
811 } else {
812 /* at least one scan line */
813 do {
814 (*s->cirrus_rop)(s, s->vga.vram_ptr +
815 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
816 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
817 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
818 s->cirrus_blt_width, 1);
819 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
820 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
821 if (s->cirrus_srccounter <= 0)
822 goto the_end;
823 /* more bytes than needed can be transferred because of
824 word alignment, so we keep them for the next line */
825 /* XXX: keep alignment to speed up transfer */
826 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
827 copy_count = s->cirrus_srcptr_end - end_ptr;
828 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
829 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
830 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
831 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
832 }
833 }
834 }
835
836 /***************************************
837 *
838 * bitblt wrapper
839 *
840 ***************************************/
841
842 static void cirrus_bitblt_reset(CirrusVGAState * s)
843 {
844 int need_update;
845
846 s->vga.gr[0x31] &=
847 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
848 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
849 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
850 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
851 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
852 s->cirrus_srccounter = 0;
853 if (!need_update)
854 return;
855 cirrus_update_memory_access(s);
856 }
857
858 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
859 {
860 int w;
861
862 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
863 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
864 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
865
866 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
867 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
868 s->cirrus_blt_srcpitch = 8;
869 } else {
870 /* XXX: check for 24 bpp */
871 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
872 }
873 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
874 } else {
875 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
876 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
877 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
878 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
879 else
880 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
881 } else {
882 /* always align input size to 32 bits */
883 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
884 }
885 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
886 }
887 s->cirrus_srcptr = s->cirrus_bltbuf;
888 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
889 cirrus_update_memory_access(s);
890 return 1;
891 }
892
893 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
894 {
895 /* XXX */
896 #ifdef DEBUG_BITBLT
897 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
898 #endif
899 return 0;
900 }
901
902 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
903 {
904 int ret;
905
906 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
907 ret = cirrus_bitblt_videotovideo_patterncopy(s);
908 } else {
909 ret = cirrus_bitblt_videotovideo_copy(s);
910 }
911 if (ret)
912 cirrus_bitblt_reset(s);
913 return ret;
914 }
915
916 static void cirrus_bitblt_start(CirrusVGAState * s)
917 {
918 uint8_t blt_rop;
919
920 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
921
922 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
923 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
924 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
925 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
926 s->cirrus_blt_dstaddr =
927 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
928 s->cirrus_blt_srcaddr =
929 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
930 s->cirrus_blt_mode = s->vga.gr[0x30];
931 s->cirrus_blt_modeext = s->vga.gr[0x33];
932 blt_rop = s->vga.gr[0x32];
933
934 #ifdef DEBUG_BITBLT
935 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",
936 blt_rop,
937 s->cirrus_blt_mode,
938 s->cirrus_blt_modeext,
939 s->cirrus_blt_width,
940 s->cirrus_blt_height,
941 s->cirrus_blt_dstpitch,
942 s->cirrus_blt_srcpitch,
943 s->cirrus_blt_dstaddr,
944 s->cirrus_blt_srcaddr,
945 s->vga.gr[0x2f]);
946 #endif
947
948 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
949 case CIRRUS_BLTMODE_PIXELWIDTH8:
950 s->cirrus_blt_pixelwidth = 1;
951 break;
952 case CIRRUS_BLTMODE_PIXELWIDTH16:
953 s->cirrus_blt_pixelwidth = 2;
954 break;
955 case CIRRUS_BLTMODE_PIXELWIDTH24:
956 s->cirrus_blt_pixelwidth = 3;
957 break;
958 case CIRRUS_BLTMODE_PIXELWIDTH32:
959 s->cirrus_blt_pixelwidth = 4;
960 break;
961 default:
962 #ifdef DEBUG_BITBLT
963 printf("cirrus: bitblt - pixel width is unknown\n");
964 #endif
965 goto bitblt_ignore;
966 }
967 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
968
969 if ((s->
970 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
971 CIRRUS_BLTMODE_MEMSYSDEST))
972 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
973 #ifdef DEBUG_BITBLT
974 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
975 #endif
976 goto bitblt_ignore;
977 }
978
979 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
980 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
981 CIRRUS_BLTMODE_TRANSPARENTCOMP |
982 CIRRUS_BLTMODE_PATTERNCOPY |
983 CIRRUS_BLTMODE_COLOREXPAND)) ==
984 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
985 cirrus_bitblt_fgcol(s);
986 cirrus_bitblt_solidfill(s, blt_rop);
987 } else {
988 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
989 CIRRUS_BLTMODE_PATTERNCOPY)) ==
990 CIRRUS_BLTMODE_COLOREXPAND) {
991
992 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
993 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
994 cirrus_bitblt_bgcol(s);
995 else
996 cirrus_bitblt_fgcol(s);
997 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
998 } else {
999 cirrus_bitblt_fgcol(s);
1000 cirrus_bitblt_bgcol(s);
1001 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1002 }
1003 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1004 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1005 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1006 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1007 cirrus_bitblt_bgcol(s);
1008 else
1009 cirrus_bitblt_fgcol(s);
1010 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1011 } else {
1012 cirrus_bitblt_fgcol(s);
1013 cirrus_bitblt_bgcol(s);
1014 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1015 }
1016 } else {
1017 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1018 }
1019 } else {
1020 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1021 if (s->cirrus_blt_pixelwidth > 2) {
1022 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1023 goto bitblt_ignore;
1024 }
1025 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1026 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1027 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1028 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1029 } else {
1030 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1031 }
1032 } else {
1033 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1034 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1035 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1036 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1037 } else {
1038 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1039 }
1040 }
1041 }
1042 // setup bitblt engine.
1043 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1044 if (!cirrus_bitblt_cputovideo(s))
1045 goto bitblt_ignore;
1046 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1047 if (!cirrus_bitblt_videotocpu(s))
1048 goto bitblt_ignore;
1049 } else {
1050 if (!cirrus_bitblt_videotovideo(s))
1051 goto bitblt_ignore;
1052 }
1053 }
1054 return;
1055 bitblt_ignore:;
1056 cirrus_bitblt_reset(s);
1057 }
1058
1059 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1060 {
1061 unsigned old_value;
1062
1063 old_value = s->vga.gr[0x31];
1064 s->vga.gr[0x31] = reg_value;
1065
1066 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1067 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1068 cirrus_bitblt_reset(s);
1069 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1070 ((reg_value & CIRRUS_BLT_START) != 0)) {
1071 cirrus_bitblt_start(s);
1072 }
1073 }
1074
1075
1076 /***************************************
1077 *
1078 * basic parameters
1079 *
1080 ***************************************/
1081
1082 static void cirrus_get_offsets(VGACommonState *s1,
1083 uint32_t *pline_offset,
1084 uint32_t *pstart_addr,
1085 uint32_t *pline_compare)
1086 {
1087 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1088 uint32_t start_addr, line_offset, line_compare;
1089
1090 line_offset = s->vga.cr[0x13]
1091 | ((s->vga.cr[0x1b] & 0x10) << 4);
1092 line_offset <<= 3;
1093 *pline_offset = line_offset;
1094
1095 start_addr = (s->vga.cr[0x0c] << 8)
1096 | s->vga.cr[0x0d]
1097 | ((s->vga.cr[0x1b] & 0x01) << 16)
1098 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1099 | ((s->vga.cr[0x1d] & 0x80) << 12);
1100 *pstart_addr = start_addr;
1101
1102 line_compare = s->vga.cr[0x18] |
1103 ((s->vga.cr[0x07] & 0x10) << 4) |
1104 ((s->vga.cr[0x09] & 0x40) << 3);
1105 *pline_compare = line_compare;
1106 }
1107
1108 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1109 {
1110 uint32_t ret = 16;
1111
1112 switch (s->cirrus_hidden_dac_data & 0xf) {
1113 case 0:
1114 ret = 15;
1115 break; /* Sierra HiColor */
1116 case 1:
1117 ret = 16;
1118 break; /* XGA HiColor */
1119 default:
1120 #ifdef DEBUG_CIRRUS
1121 printf("cirrus: invalid DAC value %x in 16bpp\n",
1122 (s->cirrus_hidden_dac_data & 0xf));
1123 #endif
1124 ret = 15; /* XXX */
1125 break;
1126 }
1127 return ret;
1128 }
1129
1130 static int cirrus_get_bpp(VGACommonState *s1)
1131 {
1132 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1133 uint32_t ret = 8;
1134
1135 if ((s->vga.sr[0x07] & 0x01) != 0) {
1136 /* Cirrus SVGA */
1137 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1138 case CIRRUS_SR7_BPP_8:
1139 ret = 8;
1140 break;
1141 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1142 ret = cirrus_get_bpp16_depth(s);
1143 break;
1144 case CIRRUS_SR7_BPP_24:
1145 ret = 24;
1146 break;
1147 case CIRRUS_SR7_BPP_16:
1148 ret = cirrus_get_bpp16_depth(s);
1149 break;
1150 case CIRRUS_SR7_BPP_32:
1151 ret = 32;
1152 break;
1153 default:
1154 #ifdef DEBUG_CIRRUS
1155 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1156 #endif
1157 ret = 8;
1158 break;
1159 }
1160 } else {
1161 /* VGA */
1162 ret = 0;
1163 }
1164
1165 return ret;
1166 }
1167
1168 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1169 {
1170 int width, height;
1171
1172 width = (s->cr[0x01] + 1) * 8;
1173 height = s->cr[0x12] |
1174 ((s->cr[0x07] & 0x02) << 7) |
1175 ((s->cr[0x07] & 0x40) << 3);
1176 height = (height + 1);
1177 /* interlace support */
1178 if (s->cr[0x1a] & 0x01)
1179 height = height * 2;
1180 *pwidth = width;
1181 *pheight = height;
1182 }
1183
1184 /***************************************
1185 *
1186 * bank memory
1187 *
1188 ***************************************/
1189
1190 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1191 {
1192 unsigned offset;
1193 unsigned limit;
1194
1195 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1196 offset = s->vga.gr[0x09 + bank_index];
1197 else /* single bank */
1198 offset = s->vga.gr[0x09];
1199
1200 if ((s->vga.gr[0x0b] & 0x20) != 0)
1201 offset <<= 14;
1202 else
1203 offset <<= 12;
1204
1205 if (s->real_vram_size <= offset)
1206 limit = 0;
1207 else
1208 limit = s->real_vram_size - offset;
1209
1210 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1211 if (limit > 0x8000) {
1212 offset += 0x8000;
1213 limit -= 0x8000;
1214 } else {
1215 limit = 0;
1216 }
1217 }
1218
1219 if (limit > 0) {
1220 s->cirrus_bank_base[bank_index] = offset;
1221 s->cirrus_bank_limit[bank_index] = limit;
1222 } else {
1223 s->cirrus_bank_base[bank_index] = 0;
1224 s->cirrus_bank_limit[bank_index] = 0;
1225 }
1226 }
1227
1228 /***************************************
1229 *
1230 * I/O access between 0x3c4-0x3c5
1231 *
1232 ***************************************/
1233
1234 static int cirrus_vga_read_sr(CirrusVGAState * s)
1235 {
1236 switch (s->vga.sr_index) {
1237 case 0x00: // Standard VGA
1238 case 0x01: // Standard VGA
1239 case 0x02: // Standard VGA
1240 case 0x03: // Standard VGA
1241 case 0x04: // Standard VGA
1242 return s->vga.sr[s->vga.sr_index];
1243 case 0x06: // Unlock Cirrus extensions
1244 return s->vga.sr[s->vga.sr_index];
1245 case 0x10:
1246 case 0x30:
1247 case 0x50:
1248 case 0x70: // Graphics Cursor X
1249 case 0x90:
1250 case 0xb0:
1251 case 0xd0:
1252 case 0xf0: // Graphics Cursor X
1253 return s->vga.sr[0x10];
1254 case 0x11:
1255 case 0x31:
1256 case 0x51:
1257 case 0x71: // Graphics Cursor Y
1258 case 0x91:
1259 case 0xb1:
1260 case 0xd1:
1261 case 0xf1: // Graphics Cursor Y
1262 return s->vga.sr[0x11];
1263 case 0x05: // ???
1264 case 0x07: // Extended Sequencer Mode
1265 case 0x08: // EEPROM Control
1266 case 0x09: // Scratch Register 0
1267 case 0x0a: // Scratch Register 1
1268 case 0x0b: // VCLK 0
1269 case 0x0c: // VCLK 1
1270 case 0x0d: // VCLK 2
1271 case 0x0e: // VCLK 3
1272 case 0x0f: // DRAM Control
1273 case 0x12: // Graphics Cursor Attribute
1274 case 0x13: // Graphics Cursor Pattern Address
1275 case 0x14: // Scratch Register 2
1276 case 0x15: // Scratch Register 3
1277 case 0x16: // Performance Tuning Register
1278 case 0x17: // Configuration Readback and Extended Control
1279 case 0x18: // Signature Generator Control
1280 case 0x19: // Signal Generator Result
1281 case 0x1a: // Signal Generator Result
1282 case 0x1b: // VCLK 0 Denominator & Post
1283 case 0x1c: // VCLK 1 Denominator & Post
1284 case 0x1d: // VCLK 2 Denominator & Post
1285 case 0x1e: // VCLK 3 Denominator & Post
1286 case 0x1f: // BIOS Write Enable and MCLK select
1287 #ifdef DEBUG_CIRRUS
1288 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1289 #endif
1290 return s->vga.sr[s->vga.sr_index];
1291 default:
1292 #ifdef DEBUG_CIRRUS
1293 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1294 #endif
1295 return 0xff;
1296 break;
1297 }
1298 }
1299
1300 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1301 {
1302 switch (s->vga.sr_index) {
1303 case 0x00: // Standard VGA
1304 case 0x01: // Standard VGA
1305 case 0x02: // Standard VGA
1306 case 0x03: // Standard VGA
1307 case 0x04: // Standard VGA
1308 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1309 if (s->vga.sr_index == 1)
1310 s->vga.update_retrace_info(&s->vga);
1311 break;
1312 case 0x06: // Unlock Cirrus extensions
1313 val &= 0x17;
1314 if (val == 0x12) {
1315 s->vga.sr[s->vga.sr_index] = 0x12;
1316 } else {
1317 s->vga.sr[s->vga.sr_index] = 0x0f;
1318 }
1319 break;
1320 case 0x10:
1321 case 0x30:
1322 case 0x50:
1323 case 0x70: // Graphics Cursor X
1324 case 0x90:
1325 case 0xb0:
1326 case 0xd0:
1327 case 0xf0: // Graphics Cursor X
1328 s->vga.sr[0x10] = val;
1329 s->vga.hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1330 break;
1331 case 0x11:
1332 case 0x31:
1333 case 0x51:
1334 case 0x71: // Graphics Cursor Y
1335 case 0x91:
1336 case 0xb1:
1337 case 0xd1:
1338 case 0xf1: // Graphics Cursor Y
1339 s->vga.sr[0x11] = val;
1340 s->vga.hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1341 break;
1342 case 0x07: // Extended Sequencer Mode
1343 cirrus_update_memory_access(s);
1344 case 0x08: // EEPROM Control
1345 case 0x09: // Scratch Register 0
1346 case 0x0a: // Scratch Register 1
1347 case 0x0b: // VCLK 0
1348 case 0x0c: // VCLK 1
1349 case 0x0d: // VCLK 2
1350 case 0x0e: // VCLK 3
1351 case 0x0f: // DRAM Control
1352 case 0x13: // Graphics Cursor Pattern Address
1353 case 0x14: // Scratch Register 2
1354 case 0x15: // Scratch Register 3
1355 case 0x16: // Performance Tuning Register
1356 case 0x18: // Signature Generator Control
1357 case 0x19: // Signature Generator Result
1358 case 0x1a: // Signature Generator Result
1359 case 0x1b: // VCLK 0 Denominator & Post
1360 case 0x1c: // VCLK 1 Denominator & Post
1361 case 0x1d: // VCLK 2 Denominator & Post
1362 case 0x1e: // VCLK 3 Denominator & Post
1363 case 0x1f: // BIOS Write Enable and MCLK select
1364 s->vga.sr[s->vga.sr_index] = val;
1365 #ifdef DEBUG_CIRRUS
1366 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1367 s->vga.sr_index, val);
1368 #endif
1369 break;
1370 case 0x12: // Graphics Cursor Attribute
1371 s->vga.sr[0x12] = val;
1372 s->vga.force_shadow = !!(val & CIRRUS_CURSOR_SHOW);
1373 #ifdef DEBUG_CIRRUS
1374 printf("cirrus: cursor ctl SR12=%02x (force shadow: %d)\n",
1375 val, s->vga.force_shadow);
1376 #endif
1377 break;
1378 case 0x17: // Configuration Readback and Extended Control
1379 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1380 | (val & 0xc7);
1381 cirrus_update_memory_access(s);
1382 break;
1383 default:
1384 #ifdef DEBUG_CIRRUS
1385 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1386 s->vga.sr_index, val);
1387 #endif
1388 break;
1389 }
1390 }
1391
1392 /***************************************
1393 *
1394 * I/O access at 0x3c6
1395 *
1396 ***************************************/
1397
1398 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1399 {
1400 if (++s->cirrus_hidden_dac_lockindex == 5) {
1401 s->cirrus_hidden_dac_lockindex = 0;
1402 return s->cirrus_hidden_dac_data;
1403 }
1404 return 0xff;
1405 }
1406
1407 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1408 {
1409 if (s->cirrus_hidden_dac_lockindex == 4) {
1410 s->cirrus_hidden_dac_data = reg_value;
1411 #if defined(DEBUG_CIRRUS)
1412 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1413 #endif
1414 }
1415 s->cirrus_hidden_dac_lockindex = 0;
1416 }
1417
1418 /***************************************
1419 *
1420 * I/O access at 0x3c9
1421 *
1422 ***************************************/
1423
1424 static int cirrus_vga_read_palette(CirrusVGAState * s)
1425 {
1426 int val;
1427
1428 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1429 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1430 s->vga.dac_sub_index];
1431 } else {
1432 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1433 }
1434 if (++s->vga.dac_sub_index == 3) {
1435 s->vga.dac_sub_index = 0;
1436 s->vga.dac_read_index++;
1437 }
1438 return val;
1439 }
1440
1441 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1442 {
1443 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1444 if (++s->vga.dac_sub_index == 3) {
1445 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1446 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1447 s->vga.dac_cache, 3);
1448 } else {
1449 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1450 }
1451 /* XXX update cursor */
1452 s->vga.dac_sub_index = 0;
1453 s->vga.dac_write_index++;
1454 }
1455 }
1456
1457 /***************************************
1458 *
1459 * I/O access between 0x3ce-0x3cf
1460 *
1461 ***************************************/
1462
1463 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1464 {
1465 switch (reg_index) {
1466 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1467 return s->cirrus_shadow_gr0;
1468 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1469 return s->cirrus_shadow_gr1;
1470 case 0x02: // Standard VGA
1471 case 0x03: // Standard VGA
1472 case 0x04: // Standard VGA
1473 case 0x06: // Standard VGA
1474 case 0x07: // Standard VGA
1475 case 0x08: // Standard VGA
1476 return s->vga.gr[s->vga.gr_index];
1477 case 0x05: // Standard VGA, Cirrus extended mode
1478 default:
1479 break;
1480 }
1481
1482 if (reg_index < 0x3a) {
1483 return s->vga.gr[reg_index];
1484 } else {
1485 #ifdef DEBUG_CIRRUS
1486 printf("cirrus: inport gr_index %02x\n", reg_index);
1487 #endif
1488 return 0xff;
1489 }
1490 }
1491
1492 static void
1493 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1494 {
1495 #if defined(DEBUG_BITBLT) && 0
1496 printf("gr%02x: %02x\n", reg_index, reg_value);
1497 #endif
1498 switch (reg_index) {
1499 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1500 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1501 s->cirrus_shadow_gr0 = reg_value;
1502 break;
1503 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1504 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1505 s->cirrus_shadow_gr1 = reg_value;
1506 break;
1507 case 0x02: // Standard VGA
1508 case 0x03: // Standard VGA
1509 case 0x04: // Standard VGA
1510 case 0x06: // Standard VGA
1511 case 0x07: // Standard VGA
1512 case 0x08: // Standard VGA
1513 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1514 break;
1515 case 0x05: // Standard VGA, Cirrus extended mode
1516 s->vga.gr[reg_index] = reg_value & 0x7f;
1517 cirrus_update_memory_access(s);
1518 break;
1519 case 0x09: // bank offset #0
1520 case 0x0A: // bank offset #1
1521 s->vga.gr[reg_index] = reg_value;
1522 cirrus_update_bank_ptr(s, 0);
1523 cirrus_update_bank_ptr(s, 1);
1524 cirrus_update_memory_access(s);
1525 break;
1526 case 0x0B:
1527 s->vga.gr[reg_index] = reg_value;
1528 cirrus_update_bank_ptr(s, 0);
1529 cirrus_update_bank_ptr(s, 1);
1530 cirrus_update_memory_access(s);
1531 break;
1532 case 0x10: // BGCOLOR 0x0000ff00
1533 case 0x11: // FGCOLOR 0x0000ff00
1534 case 0x12: // BGCOLOR 0x00ff0000
1535 case 0x13: // FGCOLOR 0x00ff0000
1536 case 0x14: // BGCOLOR 0xff000000
1537 case 0x15: // FGCOLOR 0xff000000
1538 case 0x20: // BLT WIDTH 0x0000ff
1539 case 0x22: // BLT HEIGHT 0x0000ff
1540 case 0x24: // BLT DEST PITCH 0x0000ff
1541 case 0x26: // BLT SRC PITCH 0x0000ff
1542 case 0x28: // BLT DEST ADDR 0x0000ff
1543 case 0x29: // BLT DEST ADDR 0x00ff00
1544 case 0x2c: // BLT SRC ADDR 0x0000ff
1545 case 0x2d: // BLT SRC ADDR 0x00ff00
1546 case 0x2f: // BLT WRITEMASK
1547 case 0x30: // BLT MODE
1548 case 0x32: // RASTER OP
1549 case 0x33: // BLT MODEEXT
1550 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1551 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1552 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1553 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1554 s->vga.gr[reg_index] = reg_value;
1555 break;
1556 case 0x21: // BLT WIDTH 0x001f00
1557 case 0x23: // BLT HEIGHT 0x001f00
1558 case 0x25: // BLT DEST PITCH 0x001f00
1559 case 0x27: // BLT SRC PITCH 0x001f00
1560 s->vga.gr[reg_index] = reg_value & 0x1f;
1561 break;
1562 case 0x2a: // BLT DEST ADDR 0x3f0000
1563 s->vga.gr[reg_index] = reg_value & 0x3f;
1564 /* if auto start mode, starts bit blt now */
1565 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1566 cirrus_bitblt_start(s);
1567 }
1568 break;
1569 case 0x2e: // BLT SRC ADDR 0x3f0000
1570 s->vga.gr[reg_index] = reg_value & 0x3f;
1571 break;
1572 case 0x31: // BLT STATUS/START
1573 cirrus_write_bitblt(s, reg_value);
1574 break;
1575 default:
1576 #ifdef DEBUG_CIRRUS
1577 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1578 reg_value);
1579 #endif
1580 break;
1581 }
1582 }
1583
1584 /***************************************
1585 *
1586 * I/O access between 0x3d4-0x3d5
1587 *
1588 ***************************************/
1589
1590 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1591 {
1592 switch (reg_index) {
1593 case 0x00: // Standard VGA
1594 case 0x01: // Standard VGA
1595 case 0x02: // Standard VGA
1596 case 0x03: // Standard VGA
1597 case 0x04: // Standard VGA
1598 case 0x05: // Standard VGA
1599 case 0x06: // Standard VGA
1600 case 0x07: // Standard VGA
1601 case 0x08: // Standard VGA
1602 case 0x09: // Standard VGA
1603 case 0x0a: // Standard VGA
1604 case 0x0b: // Standard VGA
1605 case 0x0c: // Standard VGA
1606 case 0x0d: // Standard VGA
1607 case 0x0e: // Standard VGA
1608 case 0x0f: // Standard VGA
1609 case 0x10: // Standard VGA
1610 case 0x11: // Standard VGA
1611 case 0x12: // Standard VGA
1612 case 0x13: // Standard VGA
1613 case 0x14: // Standard VGA
1614 case 0x15: // Standard VGA
1615 case 0x16: // Standard VGA
1616 case 0x17: // Standard VGA
1617 case 0x18: // Standard VGA
1618 return s->vga.cr[s->vga.cr_index];
1619 case 0x24: // Attribute Controller Toggle Readback (R)
1620 return (s->vga.ar_flip_flop << 7);
1621 case 0x19: // Interlace End
1622 case 0x1a: // Miscellaneous Control
1623 case 0x1b: // Extended Display Control
1624 case 0x1c: // Sync Adjust and Genlock
1625 case 0x1d: // Overlay Extended Control
1626 case 0x22: // Graphics Data Latches Readback (R)
1627 case 0x25: // Part Status
1628 case 0x27: // Part ID (R)
1629 return s->vga.cr[s->vga.cr_index];
1630 case 0x26: // Attribute Controller Index Readback (R)
1631 return s->vga.ar_index & 0x3f;
1632 break;
1633 default:
1634 #ifdef DEBUG_CIRRUS
1635 printf("cirrus: inport cr_index %02x\n", reg_index);
1636 #endif
1637 return 0xff;
1638 }
1639 }
1640
1641 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1642 {
1643 switch (s->vga.cr_index) {
1644 case 0x00: // Standard VGA
1645 case 0x01: // Standard VGA
1646 case 0x02: // Standard VGA
1647 case 0x03: // Standard VGA
1648 case 0x04: // Standard VGA
1649 case 0x05: // Standard VGA
1650 case 0x06: // Standard VGA
1651 case 0x07: // Standard VGA
1652 case 0x08: // Standard VGA
1653 case 0x09: // Standard VGA
1654 case 0x0a: // Standard VGA
1655 case 0x0b: // Standard VGA
1656 case 0x0c: // Standard VGA
1657 case 0x0d: // Standard VGA
1658 case 0x0e: // Standard VGA
1659 case 0x0f: // Standard VGA
1660 case 0x10: // Standard VGA
1661 case 0x11: // Standard VGA
1662 case 0x12: // Standard VGA
1663 case 0x13: // Standard VGA
1664 case 0x14: // Standard VGA
1665 case 0x15: // Standard VGA
1666 case 0x16: // Standard VGA
1667 case 0x17: // Standard VGA
1668 case 0x18: // Standard VGA
1669 /* handle CR0-7 protection */
1670 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1671 /* can always write bit 4 of CR7 */
1672 if (s->vga.cr_index == 7)
1673 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1674 return;
1675 }
1676 s->vga.cr[s->vga.cr_index] = reg_value;
1677 switch(s->vga.cr_index) {
1678 case 0x00:
1679 case 0x04:
1680 case 0x05:
1681 case 0x06:
1682 case 0x07:
1683 case 0x11:
1684 case 0x17:
1685 s->vga.update_retrace_info(&s->vga);
1686 break;
1687 }
1688 break;
1689 case 0x19: // Interlace End
1690 case 0x1a: // Miscellaneous Control
1691 case 0x1b: // Extended Display Control
1692 case 0x1c: // Sync Adjust and Genlock
1693 case 0x1d: // Overlay Extended Control
1694 s->vga.cr[s->vga.cr_index] = reg_value;
1695 #ifdef DEBUG_CIRRUS
1696 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1697 s->vga.cr_index, reg_value);
1698 #endif
1699 break;
1700 case 0x22: // Graphics Data Latches Readback (R)
1701 case 0x24: // Attribute Controller Toggle Readback (R)
1702 case 0x26: // Attribute Controller Index Readback (R)
1703 case 0x27: // Part ID (R)
1704 break;
1705 case 0x25: // Part Status
1706 default:
1707 #ifdef DEBUG_CIRRUS
1708 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1709 s->vga.cr_index, reg_value);
1710 #endif
1711 break;
1712 }
1713 }
1714
1715 /***************************************
1716 *
1717 * memory-mapped I/O (bitblt)
1718 *
1719 ***************************************/
1720
1721 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1722 {
1723 int value = 0xff;
1724
1725 switch (address) {
1726 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1727 value = cirrus_vga_read_gr(s, 0x00);
1728 break;
1729 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1730 value = cirrus_vga_read_gr(s, 0x10);
1731 break;
1732 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1733 value = cirrus_vga_read_gr(s, 0x12);
1734 break;
1735 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1736 value = cirrus_vga_read_gr(s, 0x14);
1737 break;
1738 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1739 value = cirrus_vga_read_gr(s, 0x01);
1740 break;
1741 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1742 value = cirrus_vga_read_gr(s, 0x11);
1743 break;
1744 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1745 value = cirrus_vga_read_gr(s, 0x13);
1746 break;
1747 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1748 value = cirrus_vga_read_gr(s, 0x15);
1749 break;
1750 case (CIRRUS_MMIO_BLTWIDTH + 0):
1751 value = cirrus_vga_read_gr(s, 0x20);
1752 break;
1753 case (CIRRUS_MMIO_BLTWIDTH + 1):
1754 value = cirrus_vga_read_gr(s, 0x21);
1755 break;
1756 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1757 value = cirrus_vga_read_gr(s, 0x22);
1758 break;
1759 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1760 value = cirrus_vga_read_gr(s, 0x23);
1761 break;
1762 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1763 value = cirrus_vga_read_gr(s, 0x24);
1764 break;
1765 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1766 value = cirrus_vga_read_gr(s, 0x25);
1767 break;
1768 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1769 value = cirrus_vga_read_gr(s, 0x26);
1770 break;
1771 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1772 value = cirrus_vga_read_gr(s, 0x27);
1773 break;
1774 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1775 value = cirrus_vga_read_gr(s, 0x28);
1776 break;
1777 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1778 value = cirrus_vga_read_gr(s, 0x29);
1779 break;
1780 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1781 value = cirrus_vga_read_gr(s, 0x2a);
1782 break;
1783 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1784 value = cirrus_vga_read_gr(s, 0x2c);
1785 break;
1786 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1787 value = cirrus_vga_read_gr(s, 0x2d);
1788 break;
1789 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1790 value = cirrus_vga_read_gr(s, 0x2e);
1791 break;
1792 case CIRRUS_MMIO_BLTWRITEMASK:
1793 value = cirrus_vga_read_gr(s, 0x2f);
1794 break;
1795 case CIRRUS_MMIO_BLTMODE:
1796 value = cirrus_vga_read_gr(s, 0x30);
1797 break;
1798 case CIRRUS_MMIO_BLTROP:
1799 value = cirrus_vga_read_gr(s, 0x32);
1800 break;
1801 case CIRRUS_MMIO_BLTMODEEXT:
1802 value = cirrus_vga_read_gr(s, 0x33);
1803 break;
1804 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1805 value = cirrus_vga_read_gr(s, 0x34);
1806 break;
1807 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1808 value = cirrus_vga_read_gr(s, 0x35);
1809 break;
1810 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1811 value = cirrus_vga_read_gr(s, 0x38);
1812 break;
1813 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1814 value = cirrus_vga_read_gr(s, 0x39);
1815 break;
1816 case CIRRUS_MMIO_BLTSTATUS:
1817 value = cirrus_vga_read_gr(s, 0x31);
1818 break;
1819 default:
1820 #ifdef DEBUG_CIRRUS
1821 printf("cirrus: mmio read - address 0x%04x\n", address);
1822 #endif
1823 break;
1824 }
1825
1826 return (uint8_t) value;
1827 }
1828
1829 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1830 uint8_t value)
1831 {
1832 switch (address) {
1833 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1834 cirrus_vga_write_gr(s, 0x00, value);
1835 break;
1836 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1837 cirrus_vga_write_gr(s, 0x10, value);
1838 break;
1839 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1840 cirrus_vga_write_gr(s, 0x12, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1843 cirrus_vga_write_gr(s, 0x14, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1846 cirrus_vga_write_gr(s, 0x01, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1849 cirrus_vga_write_gr(s, 0x11, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1852 cirrus_vga_write_gr(s, 0x13, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1855 cirrus_vga_write_gr(s, 0x15, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTWIDTH + 0):
1858 cirrus_vga_write_gr(s, 0x20, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTWIDTH + 1):
1861 cirrus_vga_write_gr(s, 0x21, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1864 cirrus_vga_write_gr(s, 0x22, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1867 cirrus_vga_write_gr(s, 0x23, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1870 cirrus_vga_write_gr(s, 0x24, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1873 cirrus_vga_write_gr(s, 0x25, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1876 cirrus_vga_write_gr(s, 0x26, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1879 cirrus_vga_write_gr(s, 0x27, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1882 cirrus_vga_write_gr(s, 0x28, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1885 cirrus_vga_write_gr(s, 0x29, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1888 cirrus_vga_write_gr(s, 0x2a, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1891 /* ignored */
1892 break;
1893 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1894 cirrus_vga_write_gr(s, 0x2c, value);
1895 break;
1896 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1897 cirrus_vga_write_gr(s, 0x2d, value);
1898 break;
1899 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1900 cirrus_vga_write_gr(s, 0x2e, value);
1901 break;
1902 case CIRRUS_MMIO_BLTWRITEMASK:
1903 cirrus_vga_write_gr(s, 0x2f, value);
1904 break;
1905 case CIRRUS_MMIO_BLTMODE:
1906 cirrus_vga_write_gr(s, 0x30, value);
1907 break;
1908 case CIRRUS_MMIO_BLTROP:
1909 cirrus_vga_write_gr(s, 0x32, value);
1910 break;
1911 case CIRRUS_MMIO_BLTMODEEXT:
1912 cirrus_vga_write_gr(s, 0x33, value);
1913 break;
1914 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1915 cirrus_vga_write_gr(s, 0x34, value);
1916 break;
1917 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1918 cirrus_vga_write_gr(s, 0x35, value);
1919 break;
1920 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1921 cirrus_vga_write_gr(s, 0x38, value);
1922 break;
1923 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1924 cirrus_vga_write_gr(s, 0x39, value);
1925 break;
1926 case CIRRUS_MMIO_BLTSTATUS:
1927 cirrus_vga_write_gr(s, 0x31, value);
1928 break;
1929 default:
1930 #ifdef DEBUG_CIRRUS
1931 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1932 address, value);
1933 #endif
1934 break;
1935 }
1936 }
1937
1938 /***************************************
1939 *
1940 * write mode 4/5
1941 *
1942 ***************************************/
1943
1944 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1945 unsigned mode,
1946 unsigned offset,
1947 uint32_t mem_value)
1948 {
1949 int x;
1950 unsigned val = mem_value;
1951 uint8_t *dst;
1952
1953 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1954 for (x = 0; x < 8; x++) {
1955 if (val & 0x80) {
1956 *dst = s->cirrus_shadow_gr1;
1957 } else if (mode == 5) {
1958 *dst = s->cirrus_shadow_gr0;
1959 }
1960 val <<= 1;
1961 dst++;
1962 }
1963 memory_region_set_dirty(&s->vga.vram, offset, 8);
1964 }
1965
1966 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1967 unsigned mode,
1968 unsigned offset,
1969 uint32_t mem_value)
1970 {
1971 int x;
1972 unsigned val = mem_value;
1973 uint8_t *dst;
1974
1975 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1976 for (x = 0; x < 8; x++) {
1977 if (val & 0x80) {
1978 *dst = s->cirrus_shadow_gr1;
1979 *(dst + 1) = s->vga.gr[0x11];
1980 } else if (mode == 5) {
1981 *dst = s->cirrus_shadow_gr0;
1982 *(dst + 1) = s->vga.gr[0x10];
1983 }
1984 val <<= 1;
1985 dst += 2;
1986 }
1987 memory_region_set_dirty(&s->vga.vram, offset, 16);
1988 }
1989
1990 /***************************************
1991 *
1992 * memory access between 0xa0000-0xbffff
1993 *
1994 ***************************************/
1995
1996 static uint64_t cirrus_vga_mem_read(void *opaque,
1997 hwaddr addr,
1998 uint32_t size)
1999 {
2000 CirrusVGAState *s = opaque;
2001 unsigned bank_index;
2002 unsigned bank_offset;
2003 uint32_t val;
2004
2005 if ((s->vga.sr[0x07] & 0x01) == 0) {
2006 return vga_mem_readb(&s->vga, addr);
2007 }
2008
2009 if (addr < 0x10000) {
2010 /* XXX handle bitblt */
2011 /* video memory */
2012 bank_index = addr >> 15;
2013 bank_offset = addr & 0x7fff;
2014 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2015 bank_offset += s->cirrus_bank_base[bank_index];
2016 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2017 bank_offset <<= 4;
2018 } else if (s->vga.gr[0x0B] & 0x02) {
2019 bank_offset <<= 3;
2020 }
2021 bank_offset &= s->cirrus_addr_mask;
2022 val = *(s->vga.vram_ptr + bank_offset);
2023 } else
2024 val = 0xff;
2025 } else if (addr >= 0x18000 && addr < 0x18100) {
2026 /* memory-mapped I/O */
2027 val = 0xff;
2028 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2029 val = cirrus_mmio_blt_read(s, addr & 0xff);
2030 }
2031 } else {
2032 val = 0xff;
2033 #ifdef DEBUG_CIRRUS
2034 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2035 #endif
2036 }
2037 return val;
2038 }
2039
2040 static void cirrus_vga_mem_write(void *opaque,
2041 hwaddr addr,
2042 uint64_t mem_value,
2043 uint32_t size)
2044 {
2045 CirrusVGAState *s = opaque;
2046 unsigned bank_index;
2047 unsigned bank_offset;
2048 unsigned mode;
2049
2050 if ((s->vga.sr[0x07] & 0x01) == 0) {
2051 vga_mem_writeb(&s->vga, addr, mem_value);
2052 return;
2053 }
2054
2055 if (addr < 0x10000) {
2056 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2057 /* bitblt */
2058 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2059 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2060 cirrus_bitblt_cputovideo_next(s);
2061 }
2062 } else {
2063 /* video memory */
2064 bank_index = addr >> 15;
2065 bank_offset = addr & 0x7fff;
2066 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2067 bank_offset += s->cirrus_bank_base[bank_index];
2068 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2069 bank_offset <<= 4;
2070 } else if (s->vga.gr[0x0B] & 0x02) {
2071 bank_offset <<= 3;
2072 }
2073 bank_offset &= s->cirrus_addr_mask;
2074 mode = s->vga.gr[0x05] & 0x7;
2075 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2076 *(s->vga.vram_ptr + bank_offset) = mem_value;
2077 memory_region_set_dirty(&s->vga.vram, bank_offset,
2078 sizeof(mem_value));
2079 } else {
2080 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2081 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2082 bank_offset,
2083 mem_value);
2084 } else {
2085 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2086 bank_offset,
2087 mem_value);
2088 }
2089 }
2090 }
2091 }
2092 } else if (addr >= 0x18000 && addr < 0x18100) {
2093 /* memory-mapped I/O */
2094 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2095 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2096 }
2097 } else {
2098 #ifdef DEBUG_CIRRUS
2099 printf("cirrus: mem_writeb " TARGET_FMT_plx " value 0x%02" PRIu64 "\n", addr,
2100 mem_value);
2101 #endif
2102 }
2103 }
2104
2105 static const MemoryRegionOps cirrus_vga_mem_ops = {
2106 .read = cirrus_vga_mem_read,
2107 .write = cirrus_vga_mem_write,
2108 .endianness = DEVICE_LITTLE_ENDIAN,
2109 .impl = {
2110 .min_access_size = 1,
2111 .max_access_size = 1,
2112 },
2113 };
2114
2115 /***************************************
2116 *
2117 * hardware cursor
2118 *
2119 ***************************************/
2120
2121 static inline void invalidate_cursor1(CirrusVGAState *s)
2122 {
2123 if (s->last_hw_cursor_size) {
2124 vga_invalidate_scanlines(&s->vga,
2125 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2126 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2127 }
2128 }
2129
2130 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2131 {
2132 const uint8_t *src;
2133 uint32_t content;
2134 int y, y_min, y_max;
2135
2136 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2137 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2138 src += (s->vga.sr[0x13] & 0x3c) * 256;
2139 y_min = 64;
2140 y_max = -1;
2141 for(y = 0; y < 64; y++) {
2142 content = ((uint32_t *)src)[0] |
2143 ((uint32_t *)src)[1] |
2144 ((uint32_t *)src)[2] |
2145 ((uint32_t *)src)[3];
2146 if (content) {
2147 if (y < y_min)
2148 y_min = y;
2149 if (y > y_max)
2150 y_max = y;
2151 }
2152 src += 16;
2153 }
2154 } else {
2155 src += (s->vga.sr[0x13] & 0x3f) * 256;
2156 y_min = 32;
2157 y_max = -1;
2158 for(y = 0; y < 32; y++) {
2159 content = ((uint32_t *)src)[0] |
2160 ((uint32_t *)(src + 128))[0];
2161 if (content) {
2162 if (y < y_min)
2163 y_min = y;
2164 if (y > y_max)
2165 y_max = y;
2166 }
2167 src += 4;
2168 }
2169 }
2170 if (y_min > y_max) {
2171 s->last_hw_cursor_y_start = 0;
2172 s->last_hw_cursor_y_end = 0;
2173 } else {
2174 s->last_hw_cursor_y_start = y_min;
2175 s->last_hw_cursor_y_end = y_max + 1;
2176 }
2177 }
2178
2179 /* NOTE: we do not currently handle the cursor bitmap change, so we
2180 update the cursor only if it moves. */
2181 static void cirrus_cursor_invalidate(VGACommonState *s1)
2182 {
2183 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2184 int size;
2185
2186 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2187 size = 0;
2188 } else {
2189 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2190 size = 64;
2191 else
2192 size = 32;
2193 }
2194 /* invalidate last cursor and new cursor if any change */
2195 if (s->last_hw_cursor_size != size ||
2196 s->last_hw_cursor_x != s->vga.hw_cursor_x ||
2197 s->last_hw_cursor_y != s->vga.hw_cursor_y) {
2198
2199 invalidate_cursor1(s);
2200
2201 s->last_hw_cursor_size = size;
2202 s->last_hw_cursor_x = s->vga.hw_cursor_x;
2203 s->last_hw_cursor_y = s->vga.hw_cursor_y;
2204 /* compute the real cursor min and max y */
2205 cirrus_cursor_compute_yrange(s);
2206 invalidate_cursor1(s);
2207 }
2208 }
2209
2210 static void vga_draw_cursor_line(uint8_t *d1,
2211 const uint8_t *src1,
2212 int poffset, int w,
2213 unsigned int color0,
2214 unsigned int color1,
2215 unsigned int color_xor)
2216 {
2217 const uint8_t *plane0, *plane1;
2218 int x, b0, b1;
2219 uint8_t *d;
2220
2221 d = d1;
2222 plane0 = src1;
2223 plane1 = src1 + poffset;
2224 for (x = 0; x < w; x++) {
2225 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
2226 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
2227 switch (b0 | (b1 << 1)) {
2228 case 0:
2229 break;
2230 case 1:
2231 ((uint32_t *)d)[0] ^= color_xor;
2232 break;
2233 case 2:
2234 ((uint32_t *)d)[0] = color0;
2235 break;
2236 case 3:
2237 ((uint32_t *)d)[0] = color1;
2238 break;
2239 }
2240 d += 4;
2241 }
2242 }
2243
2244 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2245 {
2246 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2247 int w, h, x1, x2, poffset;
2248 unsigned int color0, color1;
2249 const uint8_t *palette, *src;
2250 uint32_t content;
2251
2252 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2253 return;
2254 /* fast test to see if the cursor intersects with the scan line */
2255 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2256 h = 64;
2257 } else {
2258 h = 32;
2259 }
2260 if (scr_y < s->vga.hw_cursor_y ||
2261 scr_y >= (s->vga.hw_cursor_y + h)) {
2262 return;
2263 }
2264
2265 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2266 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2267 src += (s->vga.sr[0x13] & 0x3c) * 256;
2268 src += (scr_y - s->vga.hw_cursor_y) * 16;
2269 poffset = 8;
2270 content = ((uint32_t *)src)[0] |
2271 ((uint32_t *)src)[1] |
2272 ((uint32_t *)src)[2] |
2273 ((uint32_t *)src)[3];
2274 } else {
2275 src += (s->vga.sr[0x13] & 0x3f) * 256;
2276 src += (scr_y - s->vga.hw_cursor_y) * 4;
2277
2278
2279 poffset = 128;
2280 content = ((uint32_t *)src)[0] |
2281 ((uint32_t *)(src + 128))[0];
2282 }
2283 /* if nothing to draw, no need to continue */
2284 if (!content)
2285 return;
2286 w = h;
2287
2288 x1 = s->vga.hw_cursor_x;
2289 if (x1 >= s->vga.last_scr_width)
2290 return;
2291 x2 = s->vga.hw_cursor_x + w;
2292 if (x2 > s->vga.last_scr_width)
2293 x2 = s->vga.last_scr_width;
2294 w = x2 - x1;
2295 palette = s->cirrus_hidden_palette;
2296 color0 = rgb_to_pixel32(c6_to_8(palette[0x0 * 3]),
2297 c6_to_8(palette[0x0 * 3 + 1]),
2298 c6_to_8(palette[0x0 * 3 + 2]));
2299 color1 = rgb_to_pixel32(c6_to_8(palette[0xf * 3]),
2300 c6_to_8(palette[0xf * 3 + 1]),
2301 c6_to_8(palette[0xf * 3 + 2]));
2302 d1 += x1 * 4;
2303 vga_draw_cursor_line(d1, src, poffset, w, color0, color1, 0xffffff);
2304 }
2305
2306 /***************************************
2307 *
2308 * LFB memory access
2309 *
2310 ***************************************/
2311
2312 static uint64_t cirrus_linear_read(void *opaque, hwaddr addr,
2313 unsigned size)
2314 {
2315 CirrusVGAState *s = opaque;
2316 uint32_t ret;
2317
2318 addr &= s->cirrus_addr_mask;
2319
2320 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2321 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2322 /* memory-mapped I/O */
2323 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2324 } else if (0) {
2325 /* XXX handle bitblt */
2326 ret = 0xff;
2327 } else {
2328 /* video memory */
2329 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2330 addr <<= 4;
2331 } else if (s->vga.gr[0x0B] & 0x02) {
2332 addr <<= 3;
2333 }
2334 addr &= s->cirrus_addr_mask;
2335 ret = *(s->vga.vram_ptr + addr);
2336 }
2337
2338 return ret;
2339 }
2340
2341 static void cirrus_linear_write(void *opaque, hwaddr addr,
2342 uint64_t val, unsigned size)
2343 {
2344 CirrusVGAState *s = opaque;
2345 unsigned mode;
2346
2347 addr &= s->cirrus_addr_mask;
2348
2349 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2350 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2351 /* memory-mapped I/O */
2352 cirrus_mmio_blt_write(s, addr & 0xff, val);
2353 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2354 /* bitblt */
2355 *s->cirrus_srcptr++ = (uint8_t) val;
2356 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2357 cirrus_bitblt_cputovideo_next(s);
2358 }
2359 } else {
2360 /* video memory */
2361 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2362 addr <<= 4;
2363 } else if (s->vga.gr[0x0B] & 0x02) {
2364 addr <<= 3;
2365 }
2366 addr &= s->cirrus_addr_mask;
2367
2368 mode = s->vga.gr[0x05] & 0x7;
2369 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2370 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2371 memory_region_set_dirty(&s->vga.vram, addr, 1);
2372 } else {
2373 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2374 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2375 } else {
2376 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2377 }
2378 }
2379 }
2380 }
2381
2382 /***************************************
2383 *
2384 * system to screen memory access
2385 *
2386 ***************************************/
2387
2388
2389 static uint64_t cirrus_linear_bitblt_read(void *opaque,
2390 hwaddr addr,
2391 unsigned size)
2392 {
2393 CirrusVGAState *s = opaque;
2394 uint32_t ret;
2395
2396 /* XXX handle bitblt */
2397 (void)s;
2398 ret = 0xff;
2399 return ret;
2400 }
2401
2402 static void cirrus_linear_bitblt_write(void *opaque,
2403 hwaddr addr,
2404 uint64_t val,
2405 unsigned size)
2406 {
2407 CirrusVGAState *s = opaque;
2408
2409 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2410 /* bitblt */
2411 *s->cirrus_srcptr++ = (uint8_t) val;
2412 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2413 cirrus_bitblt_cputovideo_next(s);
2414 }
2415 }
2416 }
2417
2418 static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2419 .read = cirrus_linear_bitblt_read,
2420 .write = cirrus_linear_bitblt_write,
2421 .endianness = DEVICE_LITTLE_ENDIAN,
2422 .impl = {
2423 .min_access_size = 1,
2424 .max_access_size = 1,
2425 },
2426 };
2427
2428 static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2429 {
2430 MemoryRegion *mr = &s->cirrus_bank[bank];
2431 bool enabled = !(s->cirrus_srcptr != s->cirrus_srcptr_end)
2432 && !((s->vga.sr[0x07] & 0x01) == 0)
2433 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2434 && !(s->vga.gr[0x0B] & 0x02);
2435
2436 memory_region_set_enabled(mr, enabled);
2437 memory_region_set_alias_offset(mr, s->cirrus_bank_base[bank]);
2438 }
2439
2440 static void map_linear_vram(CirrusVGAState *s)
2441 {
2442 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2443 s->linear_vram = true;
2444 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2445 }
2446 map_linear_vram_bank(s, 0);
2447 map_linear_vram_bank(s, 1);
2448 }
2449
2450 static void unmap_linear_vram(CirrusVGAState *s)
2451 {
2452 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2453 s->linear_vram = false;
2454 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2455 }
2456 memory_region_set_enabled(&s->cirrus_bank[0], false);
2457 memory_region_set_enabled(&s->cirrus_bank[1], false);
2458 }
2459
2460 /* Compute the memory access functions */
2461 static void cirrus_update_memory_access(CirrusVGAState *s)
2462 {
2463 unsigned mode;
2464
2465 memory_region_transaction_begin();
2466 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2467 goto generic_io;
2468 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2469 goto generic_io;
2470 } else {
2471 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2472 goto generic_io;
2473 } else if (s->vga.gr[0x0B] & 0x02) {
2474 goto generic_io;
2475 }
2476
2477 mode = s->vga.gr[0x05] & 0x7;
2478 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2479 map_linear_vram(s);
2480 } else {
2481 generic_io:
2482 unmap_linear_vram(s);
2483 }
2484 }
2485 memory_region_transaction_commit();
2486 }
2487
2488
2489 /* I/O ports */
2490
2491 static uint64_t cirrus_vga_ioport_read(void *opaque, hwaddr addr,
2492 unsigned size)
2493 {
2494 CirrusVGAState *c = opaque;
2495 VGACommonState *s = &c->vga;
2496 int val, index;
2497
2498 addr += 0x3b0;
2499
2500 if (vga_ioport_invalid(s, addr)) {
2501 val = 0xff;
2502 } else {
2503 switch (addr) {
2504 case 0x3c0:
2505 if (s->ar_flip_flop == 0) {
2506 val = s->ar_index;
2507 } else {
2508 val = 0;
2509 }
2510 break;
2511 case 0x3c1:
2512 index = s->ar_index & 0x1f;
2513 if (index < 21)
2514 val = s->ar[index];
2515 else
2516 val = 0;
2517 break;
2518 case 0x3c2:
2519 val = s->st00;
2520 break;
2521 case 0x3c4:
2522 val = s->sr_index;
2523 break;
2524 case 0x3c5:
2525 val = cirrus_vga_read_sr(c);
2526 break;
2527 #ifdef DEBUG_VGA_REG
2528 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2529 #endif
2530 break;
2531 case 0x3c6:
2532 val = cirrus_read_hidden_dac(c);
2533 break;
2534 case 0x3c7:
2535 val = s->dac_state;
2536 break;
2537 case 0x3c8:
2538 val = s->dac_write_index;
2539 c->cirrus_hidden_dac_lockindex = 0;
2540 break;
2541 case 0x3c9:
2542 val = cirrus_vga_read_palette(c);
2543 break;
2544 case 0x3ca:
2545 val = s->fcr;
2546 break;
2547 case 0x3cc:
2548 val = s->msr;
2549 break;
2550 case 0x3ce:
2551 val = s->gr_index;
2552 break;
2553 case 0x3cf:
2554 val = cirrus_vga_read_gr(c, s->gr_index);
2555 #ifdef DEBUG_VGA_REG
2556 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2557 #endif
2558 break;
2559 case 0x3b4:
2560 case 0x3d4:
2561 val = s->cr_index;
2562 break;
2563 case 0x3b5:
2564 case 0x3d5:
2565 val = cirrus_vga_read_cr(c, s->cr_index);
2566 #ifdef DEBUG_VGA_REG
2567 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2568 #endif
2569 break;
2570 case 0x3ba:
2571 case 0x3da:
2572 /* just toggle to fool polling */
2573 val = s->st01 = s->retrace(s);
2574 s->ar_flip_flop = 0;
2575 break;
2576 default:
2577 val = 0x00;
2578 break;
2579 }
2580 }
2581 #if defined(DEBUG_VGA)
2582 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2583 #endif
2584 return val;
2585 }
2586
2587 static void cirrus_vga_ioport_write(void *opaque, hwaddr addr, uint64_t val,
2588 unsigned size)
2589 {
2590 CirrusVGAState *c = opaque;
2591 VGACommonState *s = &c->vga;
2592 int index;
2593
2594 addr += 0x3b0;
2595
2596 /* check port range access depending on color/monochrome mode */
2597 if (vga_ioport_invalid(s, addr)) {
2598 return;
2599 }
2600 #ifdef DEBUG_VGA
2601 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2602 #endif
2603
2604 switch (addr) {
2605 case 0x3c0:
2606 if (s->ar_flip_flop == 0) {
2607 val &= 0x3f;
2608 s->ar_index = val;
2609 } else {
2610 index = s->ar_index & 0x1f;
2611 switch (index) {
2612 case 0x00 ... 0x0f:
2613 s->ar[index] = val & 0x3f;
2614 break;
2615 case 0x10:
2616 s->ar[index] = val & ~0x10;
2617 break;
2618 case 0x11:
2619 s->ar[index] = val;
2620 break;
2621 case 0x12:
2622 s->ar[index] = val & ~0xc0;
2623 break;
2624 case 0x13:
2625 s->ar[index] = val & ~0xf0;
2626 break;
2627 case 0x14:
2628 s->ar[index] = val & ~0xf0;
2629 break;
2630 default:
2631 break;
2632 }
2633 }
2634 s->ar_flip_flop ^= 1;
2635 break;
2636 case 0x3c2:
2637 s->msr = val & ~0x10;
2638 s->update_retrace_info(s);
2639 break;
2640 case 0x3c4:
2641 s->sr_index = val;
2642 break;
2643 case 0x3c5:
2644 #ifdef DEBUG_VGA_REG
2645 printf("vga: write SR%x = 0x%02" PRIu64 "\n", s->sr_index, val);
2646 #endif
2647 cirrus_vga_write_sr(c, val);
2648 break;
2649 case 0x3c6:
2650 cirrus_write_hidden_dac(c, val);
2651 break;
2652 case 0x3c7:
2653 s->dac_read_index = val;
2654 s->dac_sub_index = 0;
2655 s->dac_state = 3;
2656 break;
2657 case 0x3c8:
2658 s->dac_write_index = val;
2659 s->dac_sub_index = 0;
2660 s->dac_state = 0;
2661 break;
2662 case 0x3c9:
2663 cirrus_vga_write_palette(c, val);
2664 break;
2665 case 0x3ce:
2666 s->gr_index = val;
2667 break;
2668 case 0x3cf:
2669 #ifdef DEBUG_VGA_REG
2670 printf("vga: write GR%x = 0x%02" PRIu64 "\n", s->gr_index, val);
2671 #endif
2672 cirrus_vga_write_gr(c, s->gr_index, val);
2673 break;
2674 case 0x3b4:
2675 case 0x3d4:
2676 s->cr_index = val;
2677 break;
2678 case 0x3b5:
2679 case 0x3d5:
2680 #ifdef DEBUG_VGA_REG
2681 printf("vga: write CR%x = 0x%02"PRIu64"\n", s->cr_index, val);
2682 #endif
2683 cirrus_vga_write_cr(c, val);
2684 break;
2685 case 0x3ba:
2686 case 0x3da:
2687 s->fcr = val & 0x10;
2688 break;
2689 }
2690 }
2691
2692 /***************************************
2693 *
2694 * memory-mapped I/O access
2695 *
2696 ***************************************/
2697
2698 static uint64_t cirrus_mmio_read(void *opaque, hwaddr addr,
2699 unsigned size)
2700 {
2701 CirrusVGAState *s = opaque;
2702
2703 if (addr >= 0x100) {
2704 return cirrus_mmio_blt_read(s, addr - 0x100);
2705 } else {
2706 return cirrus_vga_ioport_read(s, addr + 0x10, size);
2707 }
2708 }
2709
2710 static void cirrus_mmio_write(void *opaque, hwaddr addr,
2711 uint64_t val, unsigned size)
2712 {
2713 CirrusVGAState *s = opaque;
2714
2715 if (addr >= 0x100) {
2716 cirrus_mmio_blt_write(s, addr - 0x100, val);
2717 } else {
2718 cirrus_vga_ioport_write(s, addr + 0x10, val, size);
2719 }
2720 }
2721
2722 static const MemoryRegionOps cirrus_mmio_io_ops = {
2723 .read = cirrus_mmio_read,
2724 .write = cirrus_mmio_write,
2725 .endianness = DEVICE_LITTLE_ENDIAN,
2726 .impl = {
2727 .min_access_size = 1,
2728 .max_access_size = 1,
2729 },
2730 };
2731
2732 /* load/save state */
2733
2734 static int cirrus_post_load(void *opaque, int version_id)
2735 {
2736 CirrusVGAState *s = opaque;
2737
2738 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2739 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2740
2741 cirrus_update_memory_access(s);
2742 /* force refresh */
2743 s->vga.graphic_mode = -1;
2744 cirrus_update_bank_ptr(s, 0);
2745 cirrus_update_bank_ptr(s, 1);
2746 return 0;
2747 }
2748
2749 static const VMStateDescription vmstate_cirrus_vga = {
2750 .name = "cirrus_vga",
2751 .version_id = 2,
2752 .minimum_version_id = 1,
2753 .post_load = cirrus_post_load,
2754 .fields = (VMStateField[]) {
2755 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2756 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2757 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2758 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2759 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2760 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2761 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2762 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2763 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2764 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2765 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2766 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2767 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2768 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2769 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2770 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2771 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2772 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2773 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2774 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2775 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2776 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2777 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2778 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2779 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2780 VMSTATE_UINT32(vga.hw_cursor_x, CirrusVGAState),
2781 VMSTATE_UINT32(vga.hw_cursor_y, CirrusVGAState),
2782 /* XXX: we do not save the bitblt state - we assume we do not save
2783 the state when the blitter is active */
2784 VMSTATE_END_OF_LIST()
2785 }
2786 };
2787
2788 static const VMStateDescription vmstate_pci_cirrus_vga = {
2789 .name = "cirrus_vga",
2790 .version_id = 2,
2791 .minimum_version_id = 2,
2792 .fields = (VMStateField[]) {
2793 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2794 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2795 vmstate_cirrus_vga, CirrusVGAState),
2796 VMSTATE_END_OF_LIST()
2797 }
2798 };
2799
2800 /***************************************
2801 *
2802 * initialize
2803 *
2804 ***************************************/
2805
2806 static void cirrus_reset(void *opaque)
2807 {
2808 CirrusVGAState *s = opaque;
2809
2810 vga_common_reset(&s->vga);
2811 unmap_linear_vram(s);
2812 s->vga.sr[0x06] = 0x0f;
2813 if (s->device_id == CIRRUS_ID_CLGD5446) {
2814 /* 4MB 64 bit memory config, always PCI */
2815 s->vga.sr[0x1F] = 0x2d; // MemClock
2816 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2817 s->vga.sr[0x0f] = 0x98;
2818 s->vga.sr[0x17] = 0x20;
2819 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2820 } else {
2821 s->vga.sr[0x1F] = 0x22; // MemClock
2822 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2823 s->vga.sr[0x17] = s->bustype;
2824 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2825 }
2826 s->vga.cr[0x27] = s->device_id;
2827
2828 s->cirrus_hidden_dac_lockindex = 5;
2829 s->cirrus_hidden_dac_data = 0;
2830 }
2831
2832 static const MemoryRegionOps cirrus_linear_io_ops = {
2833 .read = cirrus_linear_read,
2834 .write = cirrus_linear_write,
2835 .endianness = DEVICE_LITTLE_ENDIAN,
2836 .impl = {
2837 .min_access_size = 1,
2838 .max_access_size = 1,
2839 },
2840 };
2841
2842 static const MemoryRegionOps cirrus_vga_io_ops = {
2843 .read = cirrus_vga_ioport_read,
2844 .write = cirrus_vga_ioport_write,
2845 .endianness = DEVICE_LITTLE_ENDIAN,
2846 .impl = {
2847 .min_access_size = 1,
2848 .max_access_size = 1,
2849 },
2850 };
2851
2852 static void cirrus_init_common(CirrusVGAState *s, Object *owner,
2853 int device_id, int is_pci,
2854 MemoryRegion *system_memory,
2855 MemoryRegion *system_io)
2856 {
2857 int i;
2858 static int inited;
2859
2860 if (!inited) {
2861 inited = 1;
2862 for(i = 0;i < 256; i++)
2863 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2864 rop_to_index[CIRRUS_ROP_0] = 0;
2865 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2866 rop_to_index[CIRRUS_ROP_NOP] = 2;
2867 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2868 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2869 rop_to_index[CIRRUS_ROP_SRC] = 5;
2870 rop_to_index[CIRRUS_ROP_1] = 6;
2871 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2872 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2873 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2874 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2875 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2876 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2877 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2878 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2879 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2880 s->device_id = device_id;
2881 if (is_pci)
2882 s->bustype = CIRRUS_BUSTYPE_PCI;
2883 else
2884 s->bustype = CIRRUS_BUSTYPE_ISA;
2885 }
2886
2887 /* Register ioport 0x3b0 - 0x3df */
2888 memory_region_init_io(&s->cirrus_vga_io, owner, &cirrus_vga_io_ops, s,
2889 "cirrus-io", 0x30);
2890 memory_region_set_flush_coalesced(&s->cirrus_vga_io);
2891 memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);
2892
2893 memory_region_init(&s->low_mem_container, owner,
2894 "cirrus-lowmem-container",
2895 0x20000);
2896
2897 memory_region_init_io(&s->low_mem, owner, &cirrus_vga_mem_ops, s,
2898 "cirrus-low-memory", 0x20000);
2899 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2900 for (i = 0; i < 2; ++i) {
2901 static const char *names[] = { "vga.bank0", "vga.bank1" };
2902 MemoryRegion *bank = &s->cirrus_bank[i];
2903 memory_region_init_alias(bank, owner, names[i], &s->vga.vram,
2904 0, 0x8000);
2905 memory_region_set_enabled(bank, false);
2906 memory_region_add_subregion_overlap(&s->low_mem_container, i * 0x8000,
2907 bank, 1);
2908 }
2909 memory_region_add_subregion_overlap(system_memory,
2910 isa_mem_base + 0x000a0000,
2911 &s->low_mem_container,
2912 1);
2913 memory_region_set_coalescing(&s->low_mem);
2914
2915 /* I/O handler for LFB */
2916 memory_region_init_io(&s->cirrus_linear_io, owner, &cirrus_linear_io_ops, s,
2917 "cirrus-linear-io", s->vga.vram_size_mb
2918 * 1024 * 1024);
2919 memory_region_set_flush_coalesced(&s->cirrus_linear_io);
2920
2921 /* I/O handler for LFB */
2922 memory_region_init_io(&s->cirrus_linear_bitblt_io, owner,
2923 &cirrus_linear_bitblt_io_ops,
2924 s,
2925 "cirrus-bitblt-mmio",
2926 0x400000);
2927 memory_region_set_flush_coalesced(&s->cirrus_linear_bitblt_io);
2928
2929 /* I/O handler for memory-mapped I/O */
2930 memory_region_init_io(&s->cirrus_mmio_io, owner, &cirrus_mmio_io_ops, s,
2931 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2932 memory_region_set_flush_coalesced(&s->cirrus_mmio_io);
2933
2934 s->real_vram_size =
2935 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2936
2937 /* XXX: s->vga.vram_size must be a power of two */
2938 s->cirrus_addr_mask = s->real_vram_size - 1;
2939 s->linear_mmio_mask = s->real_vram_size - 256;
2940
2941 s->vga.get_bpp = cirrus_get_bpp;
2942 s->vga.get_offsets = cirrus_get_offsets;
2943 s->vga.get_resolution = cirrus_get_resolution;
2944 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2945 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2946
2947 qemu_register_reset(cirrus_reset, s);
2948 }
2949
2950 /***************************************
2951 *
2952 * ISA bus support
2953 *
2954 ***************************************/
2955
2956 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
2957 {
2958 ISADevice *isadev = ISA_DEVICE(dev);
2959 ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
2960 VGACommonState *s = &d->cirrus_vga.vga;
2961
2962 /* follow real hardware, cirrus card emulated has 4 MB video memory.
2963 Also accept 8 MB/16 MB for backward compatibility. */
2964 if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
2965 s->vram_size_mb != 16) {
2966 error_setg(errp, "Invalid cirrus_vga ram size '%u'",
2967 s->vram_size_mb);
2968 return;
2969 }
2970 vga_common_init(s, OBJECT(dev), true);
2971 cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
2972 isa_address_space(isadev),
2973 isa_address_space_io(isadev));
2974 s->con = graphic_console_init(dev, 0, s->hw_ops, s);
2975 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2976 /* XXX ISA-LFB support */
2977 /* FIXME not qdev yet */
2978 }
2979
2980 static Property isa_cirrus_vga_properties[] = {
2981 DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
2982 cirrus_vga.vga.vram_size_mb, 8),
2983 DEFINE_PROP_END_OF_LIST(),
2984 };
2985
2986 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
2987 {
2988 DeviceClass *dc = DEVICE_CLASS(klass);
2989
2990 dc->vmsd = &vmstate_cirrus_vga;
2991 dc->realize = isa_cirrus_vga_realizefn;
2992 dc->props = isa_cirrus_vga_properties;
2993 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
2994 }
2995
2996 static const TypeInfo isa_cirrus_vga_info = {
2997 .name = TYPE_ISA_CIRRUS_VGA,
2998 .parent = TYPE_ISA_DEVICE,
2999 .instance_size = sizeof(ISACirrusVGAState),
3000 .class_init = isa_cirrus_vga_class_init,
3001 };
3002
3003 /***************************************
3004 *
3005 * PCI bus support
3006 *
3007 ***************************************/
3008
3009 static int pci_cirrus_vga_initfn(PCIDevice *dev)
3010 {
3011 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
3012 CirrusVGAState *s = &d->cirrus_vga;
3013 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
3014 int16_t device_id = pc->device_id;
3015
3016 /* follow real hardware, cirrus card emulated has 4 MB video memory.
3017 Also accept 8 MB/16 MB for backward compatibility. */
3018 if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
3019 s->vga.vram_size_mb != 16) {
3020 error_report("Invalid cirrus_vga ram size '%u'",
3021 s->vga.vram_size_mb);
3022 return -1;
3023 }
3024 /* setup VGA */
3025 vga_common_init(&s->vga, OBJECT(dev), true);
3026 cirrus_init_common(s, OBJECT(dev), device_id, 1, pci_address_space(dev),
3027 pci_address_space_io(dev));
3028 s->vga.con = graphic_console_init(DEVICE(dev), 0, s->vga.hw_ops, &s->vga);
3029
3030 /* setup PCI */
3031
3032 memory_region_init(&s->pci_bar, OBJECT(dev), "cirrus-pci-bar0", 0x2000000);
3033
3034 /* XXX: add byte swapping apertures */
3035 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
3036 memory_region_add_subregion(&s->pci_bar, 0x1000000,
3037 &s->cirrus_linear_bitblt_io);
3038
3039 /* setup memory space */
3040 /* memory #0 LFB */
3041 /* memory #1 memory-mapped I/O */
3042 /* XXX: s->vga.vram_size must be a power of two */
3043 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
3044 if (device_id == CIRRUS_ID_CLGD5446) {
3045 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
3046 }
3047 return 0;
3048 }
3049
3050 static Property pci_vga_cirrus_properties[] = {
3051 DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
3052 cirrus_vga.vga.vram_size_mb, 8),
3053 DEFINE_PROP_END_OF_LIST(),
3054 };
3055
3056 static void cirrus_vga_class_init(ObjectClass *klass, void *data)
3057 {
3058 DeviceClass *dc = DEVICE_CLASS(klass);
3059 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
3060
3061 k->init = pci_cirrus_vga_initfn;
3062 k->romfile = VGABIOS_CIRRUS_FILENAME;
3063 k->vendor_id = PCI_VENDOR_ID_CIRRUS;
3064 k->device_id = CIRRUS_ID_CLGD5446;
3065 k->class_id = PCI_CLASS_DISPLAY_VGA;
3066 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
3067 dc->desc = "Cirrus CLGD 54xx VGA";
3068 dc->vmsd = &vmstate_pci_cirrus_vga;
3069 dc->props = pci_vga_cirrus_properties;
3070 dc->hotpluggable = false;
3071 }
3072
3073 static const TypeInfo cirrus_vga_info = {
3074 .name = "cirrus-vga",
3075 .parent = TYPE_PCI_DEVICE,
3076 .instance_size = sizeof(PCICirrusVGAState),
3077 .class_init = cirrus_vga_class_init,
3078 };
3079
3080 static void cirrus_vga_register_types(void)
3081 {
3082 type_register_static(&isa_cirrus_vga_info);
3083 type_register_static(&cirrus_vga_info);
3084 }
3085
3086 type_init(cirrus_vga_register_types)
QEmu