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allow passing null machine pointer to drive_init().
[qemu.git] / hw / cirrus_vga.c
blob5cdb11f9cbaef5046ed042dc505e11e3aaa5ee18
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 /*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "hw.h"
30 #include "pc.h"
31 #include "pci.h"
32 #include "console.h"
33 #include "vga_int.h"
34 #include "kvm.h"
35
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 // PCI 0x04: command(word), 0x06(word): status
175 #define PCI_COMMAND_IOACCESS 0x0001
176 #define PCI_COMMAND_MEMACCESS 0x0002
177 #define PCI_COMMAND_BUSMASTER 0x0004
178 #define PCI_COMMAND_SPECIALCYCLE 0x0008
179 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
180 #define PCI_COMMAND_PALETTESNOOPING 0x0020
181 #define PCI_COMMAND_PARITYDETECTION 0x0040
182 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
183 #define PCI_COMMAND_SERR 0x0100
184 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
185 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
186 #define PCI_CLASS_BASE_DISPLAY 0x03
187 // PCI 0x08, 0x00ff0000
188 #define PCI_CLASS_SUB_VGA 0x00
189 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
190 // 0x10-0x3f (headertype 00h)
191 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
192 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
193 #define PCI_MAP_MEM 0x0
194 #define PCI_MAP_IO 0x1
195 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
196 #define PCI_MAP_IO_ADDR_MASK (~0x3)
197 #define PCI_MAP_MEMFLAGS_32BIT 0x0
198 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
199 #define PCI_MAP_MEMFLAGS_64BIT 0x4
200 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
201 // PCI 0x28: cardbus CIS pointer
202 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
203 // PCI 0x30: expansion ROM base address
204 #define PCI_ROMBIOS_ENABLED 0x1
205 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
206 // PCI 0x38: reserved
207 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
208
209 #define CIRRUS_PNPMMIO_SIZE 0x1000
210
211 #define ABS(a) ((signed)(a) > 0 ? a : -a)
212
213 #define BLTUNSAFE(s) \
214 ( \
215 ( /* check dst is within bounds */ \
216 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
217 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
218 (s)->vga.vram_size \
219 ) || \
220 ( /* check src is within bounds */ \
221 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
222 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
223 (s)->vga.vram_size \
224 ) \
225 )
226
227 struct CirrusVGAState;
228 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
229 uint8_t * dst, const uint8_t * src,
230 int dstpitch, int srcpitch,
231 int bltwidth, int bltheight);
232 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
233 uint8_t *dst, int dst_pitch, int width, int height);
234
235 typedef struct CirrusVGAState {
236 VGACommonState vga;
237
238 int cirrus_linear_io_addr;
239 int cirrus_linear_bitblt_io_addr;
240 int cirrus_mmio_io_addr;
241 uint32_t cirrus_addr_mask;
242 uint32_t linear_mmio_mask;
243 uint8_t cirrus_shadow_gr0;
244 uint8_t cirrus_shadow_gr1;
245 uint8_t cirrus_hidden_dac_lockindex;
246 uint8_t cirrus_hidden_dac_data;
247 uint32_t cirrus_bank_base[2];
248 uint32_t cirrus_bank_limit[2];
249 uint8_t cirrus_hidden_palette[48];
250 uint32_t hw_cursor_x;
251 uint32_t hw_cursor_y;
252 int cirrus_blt_pixelwidth;
253 int cirrus_blt_width;
254 int cirrus_blt_height;
255 int cirrus_blt_dstpitch;
256 int cirrus_blt_srcpitch;
257 uint32_t cirrus_blt_fgcol;
258 uint32_t cirrus_blt_bgcol;
259 uint32_t cirrus_blt_dstaddr;
260 uint32_t cirrus_blt_srcaddr;
261 uint8_t cirrus_blt_mode;
262 uint8_t cirrus_blt_modeext;
263 cirrus_bitblt_rop_t cirrus_rop;
264 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
265 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
266 uint8_t *cirrus_srcptr;
267 uint8_t *cirrus_srcptr_end;
268 uint32_t cirrus_srccounter;
269 /* hwcursor display state */
270 int last_hw_cursor_size;
271 int last_hw_cursor_x;
272 int last_hw_cursor_y;
273 int last_hw_cursor_y_start;
274 int last_hw_cursor_y_end;
275 int real_vram_size; /* XXX: suppress that */
276 int device_id;
277 int bustype;
278 } CirrusVGAState;
279
280 typedef struct PCICirrusVGAState {
281 PCIDevice dev;
282 CirrusVGAState cirrus_vga;
283 } PCICirrusVGAState;
284
285 static uint8_t rop_to_index[256];
286
287 /***************************************
288 *
289 * prototypes.
290 *
291 ***************************************/
292
293
294 static void cirrus_bitblt_reset(CirrusVGAState *s);
295 static void cirrus_update_memory_access(CirrusVGAState *s);
296
297 /***************************************
298 *
299 * raster operations
300 *
301 ***************************************/
302
303 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
304 uint8_t *dst,const uint8_t *src,
305 int dstpitch,int srcpitch,
306 int bltwidth,int bltheight)
307 {
308 }
309
310 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
311 uint8_t *dst,
312 int dstpitch, int bltwidth,int bltheight)
313 {
314 }
315
316 #define ROP_NAME 0
317 #define ROP_OP(d, s) d = 0
318 #include "cirrus_vga_rop.h"
319
320 #define ROP_NAME src_and_dst
321 #define ROP_OP(d, s) d = (s) & (d)
322 #include "cirrus_vga_rop.h"
323
324 #define ROP_NAME src_and_notdst
325 #define ROP_OP(d, s) d = (s) & (~(d))
326 #include "cirrus_vga_rop.h"
327
328 #define ROP_NAME notdst
329 #define ROP_OP(d, s) d = ~(d)
330 #include "cirrus_vga_rop.h"
331
332 #define ROP_NAME src
333 #define ROP_OP(d, s) d = s
334 #include "cirrus_vga_rop.h"
335
336 #define ROP_NAME 1
337 #define ROP_OP(d, s) d = ~0
338 #include "cirrus_vga_rop.h"
339
340 #define ROP_NAME notsrc_and_dst
341 #define ROP_OP(d, s) d = (~(s)) & (d)
342 #include "cirrus_vga_rop.h"
343
344 #define ROP_NAME src_xor_dst
345 #define ROP_OP(d, s) d = (s) ^ (d)
346 #include "cirrus_vga_rop.h"
347
348 #define ROP_NAME src_or_dst
349 #define ROP_OP(d, s) d = (s) | (d)
350 #include "cirrus_vga_rop.h"
351
352 #define ROP_NAME notsrc_or_notdst
353 #define ROP_OP(d, s) d = (~(s)) | (~(d))
354 #include "cirrus_vga_rop.h"
355
356 #define ROP_NAME src_notxor_dst
357 #define ROP_OP(d, s) d = ~((s) ^ (d))
358 #include "cirrus_vga_rop.h"
359
360 #define ROP_NAME src_or_notdst
361 #define ROP_OP(d, s) d = (s) | (~(d))
362 #include "cirrus_vga_rop.h"
363
364 #define ROP_NAME notsrc
365 #define ROP_OP(d, s) d = (~(s))
366 #include "cirrus_vga_rop.h"
367
368 #define ROP_NAME notsrc_or_dst
369 #define ROP_OP(d, s) d = (~(s)) | (d)
370 #include "cirrus_vga_rop.h"
371
372 #define ROP_NAME notsrc_and_notdst
373 #define ROP_OP(d, s) d = (~(s)) & (~(d))
374 #include "cirrus_vga_rop.h"
375
376 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
377 cirrus_bitblt_rop_fwd_0,
378 cirrus_bitblt_rop_fwd_src_and_dst,
379 cirrus_bitblt_rop_nop,
380 cirrus_bitblt_rop_fwd_src_and_notdst,
381 cirrus_bitblt_rop_fwd_notdst,
382 cirrus_bitblt_rop_fwd_src,
383 cirrus_bitblt_rop_fwd_1,
384 cirrus_bitblt_rop_fwd_notsrc_and_dst,
385 cirrus_bitblt_rop_fwd_src_xor_dst,
386 cirrus_bitblt_rop_fwd_src_or_dst,
387 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
388 cirrus_bitblt_rop_fwd_src_notxor_dst,
389 cirrus_bitblt_rop_fwd_src_or_notdst,
390 cirrus_bitblt_rop_fwd_notsrc,
391 cirrus_bitblt_rop_fwd_notsrc_or_dst,
392 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
393 };
394
395 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
396 cirrus_bitblt_rop_bkwd_0,
397 cirrus_bitblt_rop_bkwd_src_and_dst,
398 cirrus_bitblt_rop_nop,
399 cirrus_bitblt_rop_bkwd_src_and_notdst,
400 cirrus_bitblt_rop_bkwd_notdst,
401 cirrus_bitblt_rop_bkwd_src,
402 cirrus_bitblt_rop_bkwd_1,
403 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
404 cirrus_bitblt_rop_bkwd_src_xor_dst,
405 cirrus_bitblt_rop_bkwd_src_or_dst,
406 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
407 cirrus_bitblt_rop_bkwd_src_notxor_dst,
408 cirrus_bitblt_rop_bkwd_src_or_notdst,
409 cirrus_bitblt_rop_bkwd_notsrc,
410 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
411 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
412 };
413
414 #define TRANSP_ROP(name) {\
415 name ## _8,\
416 name ## _16,\
417 }
418 #define TRANSP_NOP(func) {\
419 func,\
420 func,\
421 }
422
423 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
424 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
426 TRANSP_NOP(cirrus_bitblt_rop_nop),
427 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
432 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
433 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
434 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
435 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
436 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
440 };
441
442 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
443 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
445 TRANSP_NOP(cirrus_bitblt_rop_nop),
446 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
451 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
452 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
453 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
454 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
455 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
459 };
460
461 #define ROP2(name) {\
462 name ## _8,\
463 name ## _16,\
464 name ## _24,\
465 name ## _32,\
466 }
467
468 #define ROP_NOP2(func) {\
469 func,\
470 func,\
471 func,\
472 func,\
473 }
474
475 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
476 ROP2(cirrus_patternfill_0),
477 ROP2(cirrus_patternfill_src_and_dst),
478 ROP_NOP2(cirrus_bitblt_rop_nop),
479 ROP2(cirrus_patternfill_src_and_notdst),
480 ROP2(cirrus_patternfill_notdst),
481 ROP2(cirrus_patternfill_src),
482 ROP2(cirrus_patternfill_1),
483 ROP2(cirrus_patternfill_notsrc_and_dst),
484 ROP2(cirrus_patternfill_src_xor_dst),
485 ROP2(cirrus_patternfill_src_or_dst),
486 ROP2(cirrus_patternfill_notsrc_or_notdst),
487 ROP2(cirrus_patternfill_src_notxor_dst),
488 ROP2(cirrus_patternfill_src_or_notdst),
489 ROP2(cirrus_patternfill_notsrc),
490 ROP2(cirrus_patternfill_notsrc_or_dst),
491 ROP2(cirrus_patternfill_notsrc_and_notdst),
492 };
493
494 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
495 ROP2(cirrus_colorexpand_transp_0),
496 ROP2(cirrus_colorexpand_transp_src_and_dst),
497 ROP_NOP2(cirrus_bitblt_rop_nop),
498 ROP2(cirrus_colorexpand_transp_src_and_notdst),
499 ROP2(cirrus_colorexpand_transp_notdst),
500 ROP2(cirrus_colorexpand_transp_src),
501 ROP2(cirrus_colorexpand_transp_1),
502 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
503 ROP2(cirrus_colorexpand_transp_src_xor_dst),
504 ROP2(cirrus_colorexpand_transp_src_or_dst),
505 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
506 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
507 ROP2(cirrus_colorexpand_transp_src_or_notdst),
508 ROP2(cirrus_colorexpand_transp_notsrc),
509 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
510 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
511 };
512
513 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
514 ROP2(cirrus_colorexpand_0),
515 ROP2(cirrus_colorexpand_src_and_dst),
516 ROP_NOP2(cirrus_bitblt_rop_nop),
517 ROP2(cirrus_colorexpand_src_and_notdst),
518 ROP2(cirrus_colorexpand_notdst),
519 ROP2(cirrus_colorexpand_src),
520 ROP2(cirrus_colorexpand_1),
521 ROP2(cirrus_colorexpand_notsrc_and_dst),
522 ROP2(cirrus_colorexpand_src_xor_dst),
523 ROP2(cirrus_colorexpand_src_or_dst),
524 ROP2(cirrus_colorexpand_notsrc_or_notdst),
525 ROP2(cirrus_colorexpand_src_notxor_dst),
526 ROP2(cirrus_colorexpand_src_or_notdst),
527 ROP2(cirrus_colorexpand_notsrc),
528 ROP2(cirrus_colorexpand_notsrc_or_dst),
529 ROP2(cirrus_colorexpand_notsrc_and_notdst),
530 };
531
532 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
533 ROP2(cirrus_colorexpand_pattern_transp_0),
534 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
535 ROP_NOP2(cirrus_bitblt_rop_nop),
536 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
537 ROP2(cirrus_colorexpand_pattern_transp_notdst),
538 ROP2(cirrus_colorexpand_pattern_transp_src),
539 ROP2(cirrus_colorexpand_pattern_transp_1),
540 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
541 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
542 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
543 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
544 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
545 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
546 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
547 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
548 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
549 };
550
551 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
552 ROP2(cirrus_colorexpand_pattern_0),
553 ROP2(cirrus_colorexpand_pattern_src_and_dst),
554 ROP_NOP2(cirrus_bitblt_rop_nop),
555 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
556 ROP2(cirrus_colorexpand_pattern_notdst),
557 ROP2(cirrus_colorexpand_pattern_src),
558 ROP2(cirrus_colorexpand_pattern_1),
559 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
560 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
561 ROP2(cirrus_colorexpand_pattern_src_or_dst),
562 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
563 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
564 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
565 ROP2(cirrus_colorexpand_pattern_notsrc),
566 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
567 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
568 };
569
570 static const cirrus_fill_t cirrus_fill[16][4] = {
571 ROP2(cirrus_fill_0),
572 ROP2(cirrus_fill_src_and_dst),
573 ROP_NOP2(cirrus_bitblt_fill_nop),
574 ROP2(cirrus_fill_src_and_notdst),
575 ROP2(cirrus_fill_notdst),
576 ROP2(cirrus_fill_src),
577 ROP2(cirrus_fill_1),
578 ROP2(cirrus_fill_notsrc_and_dst),
579 ROP2(cirrus_fill_src_xor_dst),
580 ROP2(cirrus_fill_src_or_dst),
581 ROP2(cirrus_fill_notsrc_or_notdst),
582 ROP2(cirrus_fill_src_notxor_dst),
583 ROP2(cirrus_fill_src_or_notdst),
584 ROP2(cirrus_fill_notsrc),
585 ROP2(cirrus_fill_notsrc_or_dst),
586 ROP2(cirrus_fill_notsrc_and_notdst),
587 };
588
589 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
590 {
591 unsigned int color;
592 switch (s->cirrus_blt_pixelwidth) {
593 case 1:
594 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
595 break;
596 case 2:
597 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
598 s->cirrus_blt_fgcol = le16_to_cpu(color);
599 break;
600 case 3:
601 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
602 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
603 break;
604 default:
605 case 4:
606 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
607 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
608 s->cirrus_blt_fgcol = le32_to_cpu(color);
609 break;
610 }
611 }
612
613 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
614 {
615 unsigned int color;
616 switch (s->cirrus_blt_pixelwidth) {
617 case 1:
618 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
619 break;
620 case 2:
621 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
622 s->cirrus_blt_bgcol = le16_to_cpu(color);
623 break;
624 case 3:
625 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
626 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
627 break;
628 default:
629 case 4:
630 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
631 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
632 s->cirrus_blt_bgcol = le32_to_cpu(color);
633 break;
634 }
635 }
636
637 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
638 int off_pitch, int bytesperline,
639 int lines)
640 {
641 int y;
642 int off_cur;
643 int off_cur_end;
644
645 for (y = 0; y < lines; y++) {
646 off_cur = off_begin;
647 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
648 off_cur &= TARGET_PAGE_MASK;
649 while (off_cur < off_cur_end) {
650 cpu_physical_memory_set_dirty(s->vga.vram_offset + off_cur);
651 off_cur += TARGET_PAGE_SIZE;
652 }
653 off_begin += off_pitch;
654 }
655 }
656
657 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
658 const uint8_t * src)
659 {
660 uint8_t *dst;
661
662 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
663
664 if (BLTUNSAFE(s))
665 return 0;
666
667 (*s->cirrus_rop) (s, dst, src,
668 s->cirrus_blt_dstpitch, 0,
669 s->cirrus_blt_width, s->cirrus_blt_height);
670 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
671 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
672 s->cirrus_blt_height);
673 return 1;
674 }
675
676 /* fill */
677
678 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
679 {
680 cirrus_fill_t rop_func;
681
682 if (BLTUNSAFE(s))
683 return 0;
684 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
685 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
686 s->cirrus_blt_dstpitch,
687 s->cirrus_blt_width, s->cirrus_blt_height);
688 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
689 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
690 s->cirrus_blt_height);
691 cirrus_bitblt_reset(s);
692 return 1;
693 }
694
695 /***************************************
696 *
697 * bitblt (video-to-video)
698 *
699 ***************************************/
700
701 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
702 {
703 return cirrus_bitblt_common_patterncopy(s,
704 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
705 s->cirrus_addr_mask));
706 }
707
708 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
709 {
710 int sx, sy;
711 int dx, dy;
712 int width, height;
713 int depth;
714 int notify = 0;
715
716 depth = s->vga.get_bpp(&s->vga) / 8;
717 s->vga.get_resolution(&s->vga, &width, &height);
718
719 /* extra x, y */
720 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
721 sy = (src / ABS(s->cirrus_blt_srcpitch));
722 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
723 dy = (dst / ABS(s->cirrus_blt_dstpitch));
724
725 /* normalize width */
726 w /= depth;
727
728 /* if we're doing a backward copy, we have to adjust
729 our x/y to be the upper left corner (instead of the lower
730 right corner) */
731 if (s->cirrus_blt_dstpitch < 0) {
732 sx -= (s->cirrus_blt_width / depth) - 1;
733 dx -= (s->cirrus_blt_width / depth) - 1;
734 sy -= s->cirrus_blt_height - 1;
735 dy -= s->cirrus_blt_height - 1;
736 }
737
738 /* are we in the visible portion of memory? */
739 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
740 (sx + w) <= width && (sy + h) <= height &&
741 (dx + w) <= width && (dy + h) <= height) {
742 notify = 1;
743 }
744
745 /* make to sure only copy if it's a plain copy ROP */
746 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
747 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
748 notify = 0;
749
750 /* we have to flush all pending changes so that the copy
751 is generated at the appropriate moment in time */
752 if (notify)
753 vga_hw_update();
754
755 (*s->cirrus_rop) (s, s->vga.vram_ptr +
756 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
757 s->vga.vram_ptr +
758 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
759 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
760 s->cirrus_blt_width, s->cirrus_blt_height);
761
762 if (notify)
763 qemu_console_copy(s->vga.ds,
764 sx, sy, dx, dy,
765 s->cirrus_blt_width / depth,
766 s->cirrus_blt_height);
767
768 /* we don't have to notify the display that this portion has
769 changed since qemu_console_copy implies this */
770
771 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
772 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
773 s->cirrus_blt_height);
774 }
775
776 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
777 {
778 if (BLTUNSAFE(s))
779 return 0;
780
781 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
782 s->cirrus_blt_srcaddr - s->vga.start_addr,
783 s->cirrus_blt_width, s->cirrus_blt_height);
784
785 return 1;
786 }
787
788 /***************************************
789 *
790 * bitblt (cpu-to-video)
791 *
792 ***************************************/
793
794 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
795 {
796 int copy_count;
797 uint8_t *end_ptr;
798
799 if (s->cirrus_srccounter > 0) {
800 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
801 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
802 the_end:
803 s->cirrus_srccounter = 0;
804 cirrus_bitblt_reset(s);
805 } else {
806 /* at least one scan line */
807 do {
808 (*s->cirrus_rop)(s, s->vga.vram_ptr +
809 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
810 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
811 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
812 s->cirrus_blt_width, 1);
813 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
814 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
815 if (s->cirrus_srccounter <= 0)
816 goto the_end;
817 /* more bytes than needed can be transfered because of
818 word alignment, so we keep them for the next line */
819 /* XXX: keep alignment to speed up transfer */
820 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
821 copy_count = s->cirrus_srcptr_end - end_ptr;
822 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
823 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
824 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
825 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
826 }
827 }
828 }
829
830 /***************************************
831 *
832 * bitblt wrapper
833 *
834 ***************************************/
835
836 static void cirrus_bitblt_reset(CirrusVGAState * s)
837 {
838 int need_update;
839
840 s->vga.gr[0x31] &=
841 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
842 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
843 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
844 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
845 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
846 s->cirrus_srccounter = 0;
847 if (!need_update)
848 return;
849 cirrus_update_memory_access(s);
850 }
851
852 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
853 {
854 int w;
855
856 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
857 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
858 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
859
860 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
861 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
862 s->cirrus_blt_srcpitch = 8;
863 } else {
864 /* XXX: check for 24 bpp */
865 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
866 }
867 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
868 } else {
869 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
870 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
871 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
872 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
873 else
874 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
875 } else {
876 /* always align input size to 32 bits */
877 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
878 }
879 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
880 }
881 s->cirrus_srcptr = s->cirrus_bltbuf;
882 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
883 cirrus_update_memory_access(s);
884 return 1;
885 }
886
887 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
888 {
889 /* XXX */
890 #ifdef DEBUG_BITBLT
891 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
892 #endif
893 return 0;
894 }
895
896 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
897 {
898 int ret;
899
900 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
901 ret = cirrus_bitblt_videotovideo_patterncopy(s);
902 } else {
903 ret = cirrus_bitblt_videotovideo_copy(s);
904 }
905 if (ret)
906 cirrus_bitblt_reset(s);
907 return ret;
908 }
909
910 static void cirrus_bitblt_start(CirrusVGAState * s)
911 {
912 uint8_t blt_rop;
913
914 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
915
916 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
917 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
918 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
919 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
920 s->cirrus_blt_dstaddr =
921 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
922 s->cirrus_blt_srcaddr =
923 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
924 s->cirrus_blt_mode = s->vga.gr[0x30];
925 s->cirrus_blt_modeext = s->vga.gr[0x33];
926 blt_rop = s->vga.gr[0x32];
927
928 #ifdef DEBUG_BITBLT
929 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",
930 blt_rop,
931 s->cirrus_blt_mode,
932 s->cirrus_blt_modeext,
933 s->cirrus_blt_width,
934 s->cirrus_blt_height,
935 s->cirrus_blt_dstpitch,
936 s->cirrus_blt_srcpitch,
937 s->cirrus_blt_dstaddr,
938 s->cirrus_blt_srcaddr,
939 s->vga.gr[0x2f]);
940 #endif
941
942 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
943 case CIRRUS_BLTMODE_PIXELWIDTH8:
944 s->cirrus_blt_pixelwidth = 1;
945 break;
946 case CIRRUS_BLTMODE_PIXELWIDTH16:
947 s->cirrus_blt_pixelwidth = 2;
948 break;
949 case CIRRUS_BLTMODE_PIXELWIDTH24:
950 s->cirrus_blt_pixelwidth = 3;
951 break;
952 case CIRRUS_BLTMODE_PIXELWIDTH32:
953 s->cirrus_blt_pixelwidth = 4;
954 break;
955 default:
956 #ifdef DEBUG_BITBLT
957 printf("cirrus: bitblt - pixel width is unknown\n");
958 #endif
959 goto bitblt_ignore;
960 }
961 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
962
963 if ((s->
964 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
965 CIRRUS_BLTMODE_MEMSYSDEST))
966 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
967 #ifdef DEBUG_BITBLT
968 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
969 #endif
970 goto bitblt_ignore;
971 }
972
973 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
974 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
975 CIRRUS_BLTMODE_TRANSPARENTCOMP |
976 CIRRUS_BLTMODE_PATTERNCOPY |
977 CIRRUS_BLTMODE_COLOREXPAND)) ==
978 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
979 cirrus_bitblt_fgcol(s);
980 cirrus_bitblt_solidfill(s, blt_rop);
981 } else {
982 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
983 CIRRUS_BLTMODE_PATTERNCOPY)) ==
984 CIRRUS_BLTMODE_COLOREXPAND) {
985
986 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
987 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
988 cirrus_bitblt_bgcol(s);
989 else
990 cirrus_bitblt_fgcol(s);
991 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
992 } else {
993 cirrus_bitblt_fgcol(s);
994 cirrus_bitblt_bgcol(s);
995 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
996 }
997 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
998 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
999 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1000 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1001 cirrus_bitblt_bgcol(s);
1002 else
1003 cirrus_bitblt_fgcol(s);
1004 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1005 } else {
1006 cirrus_bitblt_fgcol(s);
1007 cirrus_bitblt_bgcol(s);
1008 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1009 }
1010 } else {
1011 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1012 }
1013 } else {
1014 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1015 if (s->cirrus_blt_pixelwidth > 2) {
1016 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1017 goto bitblt_ignore;
1018 }
1019 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1020 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1021 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1022 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1023 } else {
1024 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1025 }
1026 } else {
1027 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1028 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1029 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1030 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1031 } else {
1032 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1033 }
1034 }
1035 }
1036 // setup bitblt engine.
1037 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1038 if (!cirrus_bitblt_cputovideo(s))
1039 goto bitblt_ignore;
1040 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1041 if (!cirrus_bitblt_videotocpu(s))
1042 goto bitblt_ignore;
1043 } else {
1044 if (!cirrus_bitblt_videotovideo(s))
1045 goto bitblt_ignore;
1046 }
1047 }
1048 return;
1049 bitblt_ignore:;
1050 cirrus_bitblt_reset(s);
1051 }
1052
1053 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1054 {
1055 unsigned old_value;
1056
1057 old_value = s->vga.gr[0x31];
1058 s->vga.gr[0x31] = reg_value;
1059
1060 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1061 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1062 cirrus_bitblt_reset(s);
1063 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1064 ((reg_value & CIRRUS_BLT_START) != 0)) {
1065 cirrus_bitblt_start(s);
1066 }
1067 }
1068
1069
1070 /***************************************
1071 *
1072 * basic parameters
1073 *
1074 ***************************************/
1075
1076 static void cirrus_get_offsets(VGACommonState *s1,
1077 uint32_t *pline_offset,
1078 uint32_t *pstart_addr,
1079 uint32_t *pline_compare)
1080 {
1081 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1082 uint32_t start_addr, line_offset, line_compare;
1083
1084 line_offset = s->vga.cr[0x13]
1085 | ((s->vga.cr[0x1b] & 0x10) << 4);
1086 line_offset <<= 3;
1087 *pline_offset = line_offset;
1088
1089 start_addr = (s->vga.cr[0x0c] << 8)
1090 | s->vga.cr[0x0d]
1091 | ((s->vga.cr[0x1b] & 0x01) << 16)
1092 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1093 | ((s->vga.cr[0x1d] & 0x80) << 12);
1094 *pstart_addr = start_addr;
1095
1096 line_compare = s->vga.cr[0x18] |
1097 ((s->vga.cr[0x07] & 0x10) << 4) |
1098 ((s->vga.cr[0x09] & 0x40) << 3);
1099 *pline_compare = line_compare;
1100 }
1101
1102 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1103 {
1104 uint32_t ret = 16;
1105
1106 switch (s->cirrus_hidden_dac_data & 0xf) {
1107 case 0:
1108 ret = 15;
1109 break; /* Sierra HiColor */
1110 case 1:
1111 ret = 16;
1112 break; /* XGA HiColor */
1113 default:
1114 #ifdef DEBUG_CIRRUS
1115 printf("cirrus: invalid DAC value %x in 16bpp\n",
1116 (s->cirrus_hidden_dac_data & 0xf));
1117 #endif
1118 ret = 15; /* XXX */
1119 break;
1120 }
1121 return ret;
1122 }
1123
1124 static int cirrus_get_bpp(VGACommonState *s1)
1125 {
1126 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1127 uint32_t ret = 8;
1128
1129 if ((s->vga.sr[0x07] & 0x01) != 0) {
1130 /* Cirrus SVGA */
1131 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1132 case CIRRUS_SR7_BPP_8:
1133 ret = 8;
1134 break;
1135 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1136 ret = cirrus_get_bpp16_depth(s);
1137 break;
1138 case CIRRUS_SR7_BPP_24:
1139 ret = 24;
1140 break;
1141 case CIRRUS_SR7_BPP_16:
1142 ret = cirrus_get_bpp16_depth(s);
1143 break;
1144 case CIRRUS_SR7_BPP_32:
1145 ret = 32;
1146 break;
1147 default:
1148 #ifdef DEBUG_CIRRUS
1149 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1150 #endif
1151 ret = 8;
1152 break;
1153 }
1154 } else {
1155 /* VGA */
1156 ret = 0;
1157 }
1158
1159 return ret;
1160 }
1161
1162 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1163 {
1164 int width, height;
1165
1166 width = (s->cr[0x01] + 1) * 8;
1167 height = s->cr[0x12] |
1168 ((s->cr[0x07] & 0x02) << 7) |
1169 ((s->cr[0x07] & 0x40) << 3);
1170 height = (height + 1);
1171 /* interlace support */
1172 if (s->cr[0x1a] & 0x01)
1173 height = height * 2;
1174 *pwidth = width;
1175 *pheight = height;
1176 }
1177
1178 /***************************************
1179 *
1180 * bank memory
1181 *
1182 ***************************************/
1183
1184 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1185 {
1186 unsigned offset;
1187 unsigned limit;
1188
1189 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1190 offset = s->vga.gr[0x09 + bank_index];
1191 else /* single bank */
1192 offset = s->vga.gr[0x09];
1193
1194 if ((s->vga.gr[0x0b] & 0x20) != 0)
1195 offset <<= 14;
1196 else
1197 offset <<= 12;
1198
1199 if (s->real_vram_size <= offset)
1200 limit = 0;
1201 else
1202 limit = s->real_vram_size - offset;
1203
1204 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1205 if (limit > 0x8000) {
1206 offset += 0x8000;
1207 limit -= 0x8000;
1208 } else {
1209 limit = 0;
1210 }
1211 }
1212
1213 if (limit > 0) {
1214 /* Thinking about changing bank base? First, drop the dirty bitmap information
1215 * on the current location, otherwise we lose this pointer forever */
1216 if (s->vga.lfb_vram_mapped) {
1217 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1218 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1219 }
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->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->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 0x12: // Graphics Cursor Attribute
1353 case 0x13: // Graphics Cursor Pattern Address
1354 case 0x14: // Scratch Register 2
1355 case 0x15: // Scratch Register 3
1356 case 0x16: // Performance Tuning Register
1357 case 0x18: // Signature Generator Control
1358 case 0x19: // Signature Generator Result
1359 case 0x1a: // Signature Generator Result
1360 case 0x1b: // VCLK 0 Denominator & Post
1361 case 0x1c: // VCLK 1 Denominator & Post
1362 case 0x1d: // VCLK 2 Denominator & Post
1363 case 0x1e: // VCLK 3 Denominator & Post
1364 case 0x1f: // BIOS Write Enable and MCLK select
1365 s->vga.sr[s->vga.sr_index] = val;
1366 #ifdef DEBUG_CIRRUS
1367 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1368 s->vga.sr_index, val);
1369 #endif
1370 break;
1371 case 0x17: // Configuration Readback and Extended Control
1372 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1373 | (val & 0xc7);
1374 cirrus_update_memory_access(s);
1375 break;
1376 default:
1377 #ifdef DEBUG_CIRRUS
1378 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1379 s->vga.sr_index, val);
1380 #endif
1381 break;
1382 }
1383 }
1384
1385 /***************************************
1386 *
1387 * I/O access at 0x3c6
1388 *
1389 ***************************************/
1390
1391 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1392 {
1393 if (++s->cirrus_hidden_dac_lockindex == 5) {
1394 s->cirrus_hidden_dac_lockindex = 0;
1395 return s->cirrus_hidden_dac_data;
1396 }
1397 return 0xff;
1398 }
1399
1400 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1401 {
1402 if (s->cirrus_hidden_dac_lockindex == 4) {
1403 s->cirrus_hidden_dac_data = reg_value;
1404 #if defined(DEBUG_CIRRUS)
1405 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1406 #endif
1407 }
1408 s->cirrus_hidden_dac_lockindex = 0;
1409 }
1410
1411 /***************************************
1412 *
1413 * I/O access at 0x3c9
1414 *
1415 ***************************************/
1416
1417 static int cirrus_vga_read_palette(CirrusVGAState * s)
1418 {
1419 int val;
1420
1421 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1422 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1423 s->vga.dac_sub_index];
1424 } else {
1425 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1426 }
1427 if (++s->vga.dac_sub_index == 3) {
1428 s->vga.dac_sub_index = 0;
1429 s->vga.dac_read_index++;
1430 }
1431 return val;
1432 }
1433
1434 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1435 {
1436 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1437 if (++s->vga.dac_sub_index == 3) {
1438 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1439 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1440 s->vga.dac_cache, 3);
1441 } else {
1442 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1443 }
1444 /* XXX update cursor */
1445 s->vga.dac_sub_index = 0;
1446 s->vga.dac_write_index++;
1447 }
1448 }
1449
1450 /***************************************
1451 *
1452 * I/O access between 0x3ce-0x3cf
1453 *
1454 ***************************************/
1455
1456 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1457 {
1458 switch (reg_index) {
1459 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1460 return s->cirrus_shadow_gr0;
1461 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1462 return s->cirrus_shadow_gr1;
1463 case 0x02: // Standard VGA
1464 case 0x03: // Standard VGA
1465 case 0x04: // Standard VGA
1466 case 0x06: // Standard VGA
1467 case 0x07: // Standard VGA
1468 case 0x08: // Standard VGA
1469 return s->vga.gr[s->vga.gr_index];
1470 case 0x05: // Standard VGA, Cirrus extended mode
1471 default:
1472 break;
1473 }
1474
1475 if (reg_index < 0x3a) {
1476 return s->vga.gr[reg_index];
1477 } else {
1478 #ifdef DEBUG_CIRRUS
1479 printf("cirrus: inport gr_index %02x\n", reg_index);
1480 #endif
1481 return 0xff;
1482 }
1483 }
1484
1485 static void
1486 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1487 {
1488 #if defined(DEBUG_BITBLT) && 0
1489 printf("gr%02x: %02x\n", reg_index, reg_value);
1490 #endif
1491 switch (reg_index) {
1492 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1493 s->cirrus_shadow_gr0 = reg_value;
1494 break;
1495 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1496 s->cirrus_shadow_gr1 = reg_value;
1497 break;
1498 case 0x02: // Standard VGA
1499 case 0x03: // Standard VGA
1500 case 0x04: // Standard VGA
1501 case 0x06: // Standard VGA
1502 case 0x07: // Standard VGA
1503 case 0x08: // Standard VGA
1504 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1505 break;
1506 case 0x05: // Standard VGA, Cirrus extended mode
1507 s->vga.gr[reg_index] = reg_value & 0x7f;
1508 cirrus_update_memory_access(s);
1509 break;
1510 case 0x09: // bank offset #0
1511 case 0x0A: // bank offset #1
1512 s->vga.gr[reg_index] = reg_value;
1513 cirrus_update_bank_ptr(s, 0);
1514 cirrus_update_bank_ptr(s, 1);
1515 cirrus_update_memory_access(s);
1516 break;
1517 case 0x0B:
1518 s->vga.gr[reg_index] = reg_value;
1519 cirrus_update_bank_ptr(s, 0);
1520 cirrus_update_bank_ptr(s, 1);
1521 cirrus_update_memory_access(s);
1522 break;
1523 case 0x10: // BGCOLOR 0x0000ff00
1524 case 0x11: // FGCOLOR 0x0000ff00
1525 case 0x12: // BGCOLOR 0x00ff0000
1526 case 0x13: // FGCOLOR 0x00ff0000
1527 case 0x14: // BGCOLOR 0xff000000
1528 case 0x15: // FGCOLOR 0xff000000
1529 case 0x20: // BLT WIDTH 0x0000ff
1530 case 0x22: // BLT HEIGHT 0x0000ff
1531 case 0x24: // BLT DEST PITCH 0x0000ff
1532 case 0x26: // BLT SRC PITCH 0x0000ff
1533 case 0x28: // BLT DEST ADDR 0x0000ff
1534 case 0x29: // BLT DEST ADDR 0x00ff00
1535 case 0x2c: // BLT SRC ADDR 0x0000ff
1536 case 0x2d: // BLT SRC ADDR 0x00ff00
1537 case 0x2f: // BLT WRITEMASK
1538 case 0x30: // BLT MODE
1539 case 0x32: // RASTER OP
1540 case 0x33: // BLT MODEEXT
1541 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1542 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1543 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1544 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1545 s->vga.gr[reg_index] = reg_value;
1546 break;
1547 case 0x21: // BLT WIDTH 0x001f00
1548 case 0x23: // BLT HEIGHT 0x001f00
1549 case 0x25: // BLT DEST PITCH 0x001f00
1550 case 0x27: // BLT SRC PITCH 0x001f00
1551 s->vga.gr[reg_index] = reg_value & 0x1f;
1552 break;
1553 case 0x2a: // BLT DEST ADDR 0x3f0000
1554 s->vga.gr[reg_index] = reg_value & 0x3f;
1555 /* if auto start mode, starts bit blt now */
1556 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1557 cirrus_bitblt_start(s);
1558 }
1559 break;
1560 case 0x2e: // BLT SRC ADDR 0x3f0000
1561 s->vga.gr[reg_index] = reg_value & 0x3f;
1562 break;
1563 case 0x31: // BLT STATUS/START
1564 cirrus_write_bitblt(s, reg_value);
1565 break;
1566 default:
1567 #ifdef DEBUG_CIRRUS
1568 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1569 reg_value);
1570 #endif
1571 break;
1572 }
1573 }
1574
1575 /***************************************
1576 *
1577 * I/O access between 0x3d4-0x3d5
1578 *
1579 ***************************************/
1580
1581 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1582 {
1583 switch (reg_index) {
1584 case 0x00: // Standard VGA
1585 case 0x01: // Standard VGA
1586 case 0x02: // Standard VGA
1587 case 0x03: // Standard VGA
1588 case 0x04: // Standard VGA
1589 case 0x05: // Standard VGA
1590 case 0x06: // Standard VGA
1591 case 0x07: // Standard VGA
1592 case 0x08: // Standard VGA
1593 case 0x09: // Standard VGA
1594 case 0x0a: // Standard VGA
1595 case 0x0b: // Standard VGA
1596 case 0x0c: // Standard VGA
1597 case 0x0d: // Standard VGA
1598 case 0x0e: // Standard VGA
1599 case 0x0f: // Standard VGA
1600 case 0x10: // Standard VGA
1601 case 0x11: // Standard VGA
1602 case 0x12: // Standard VGA
1603 case 0x13: // Standard VGA
1604 case 0x14: // Standard VGA
1605 case 0x15: // Standard VGA
1606 case 0x16: // Standard VGA
1607 case 0x17: // Standard VGA
1608 case 0x18: // Standard VGA
1609 return s->vga.cr[s->vga.cr_index];
1610 case 0x24: // Attribute Controller Toggle Readback (R)
1611 return (s->vga.ar_flip_flop << 7);
1612 case 0x19: // Interlace End
1613 case 0x1a: // Miscellaneous Control
1614 case 0x1b: // Extended Display Control
1615 case 0x1c: // Sync Adjust and Genlock
1616 case 0x1d: // Overlay Extended Control
1617 case 0x22: // Graphics Data Latches Readback (R)
1618 case 0x25: // Part Status
1619 case 0x27: // Part ID (R)
1620 return s->vga.cr[s->vga.cr_index];
1621 case 0x26: // Attribute Controller Index Readback (R)
1622 return s->vga.ar_index & 0x3f;
1623 break;
1624 default:
1625 #ifdef DEBUG_CIRRUS
1626 printf("cirrus: inport cr_index %02x\n", reg_index);
1627 #endif
1628 return 0xff;
1629 }
1630 }
1631
1632 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1633 {
1634 switch (s->vga.cr_index) {
1635 case 0x00: // Standard VGA
1636 case 0x01: // Standard VGA
1637 case 0x02: // Standard VGA
1638 case 0x03: // Standard VGA
1639 case 0x04: // Standard VGA
1640 case 0x05: // Standard VGA
1641 case 0x06: // Standard VGA
1642 case 0x07: // Standard VGA
1643 case 0x08: // Standard VGA
1644 case 0x09: // Standard VGA
1645 case 0x0a: // Standard VGA
1646 case 0x0b: // Standard VGA
1647 case 0x0c: // Standard VGA
1648 case 0x0d: // Standard VGA
1649 case 0x0e: // Standard VGA
1650 case 0x0f: // Standard VGA
1651 case 0x10: // Standard VGA
1652 case 0x11: // Standard VGA
1653 case 0x12: // Standard VGA
1654 case 0x13: // Standard VGA
1655 case 0x14: // Standard VGA
1656 case 0x15: // Standard VGA
1657 case 0x16: // Standard VGA
1658 case 0x17: // Standard VGA
1659 case 0x18: // Standard VGA
1660 /* handle CR0-7 protection */
1661 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1662 /* can always write bit 4 of CR7 */
1663 if (s->vga.cr_index == 7)
1664 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1665 return;
1666 }
1667 s->vga.cr[s->vga.cr_index] = reg_value;
1668 switch(s->vga.cr_index) {
1669 case 0x00:
1670 case 0x04:
1671 case 0x05:
1672 case 0x06:
1673 case 0x07:
1674 case 0x11:
1675 case 0x17:
1676 s->vga.update_retrace_info(&s->vga);
1677 break;
1678 }
1679 break;
1680 case 0x19: // Interlace End
1681 case 0x1a: // Miscellaneous Control
1682 case 0x1b: // Extended Display Control
1683 case 0x1c: // Sync Adjust and Genlock
1684 case 0x1d: // Overlay Extended Control
1685 s->vga.cr[s->vga.cr_index] = reg_value;
1686 #ifdef DEBUG_CIRRUS
1687 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1688 s->vga.cr_index, reg_value);
1689 #endif
1690 break;
1691 case 0x22: // Graphics Data Latches Readback (R)
1692 case 0x24: // Attribute Controller Toggle Readback (R)
1693 case 0x26: // Attribute Controller Index Readback (R)
1694 case 0x27: // Part ID (R)
1695 break;
1696 case 0x25: // Part Status
1697 default:
1698 #ifdef DEBUG_CIRRUS
1699 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1700 s->vga.cr_index, reg_value);
1701 #endif
1702 break;
1703 }
1704 }
1705
1706 /***************************************
1707 *
1708 * memory-mapped I/O (bitblt)
1709 *
1710 ***************************************/
1711
1712 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1713 {
1714 int value = 0xff;
1715
1716 switch (address) {
1717 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1718 value = cirrus_vga_read_gr(s, 0x00);
1719 break;
1720 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1721 value = cirrus_vga_read_gr(s, 0x10);
1722 break;
1723 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1724 value = cirrus_vga_read_gr(s, 0x12);
1725 break;
1726 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1727 value = cirrus_vga_read_gr(s, 0x14);
1728 break;
1729 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1730 value = cirrus_vga_read_gr(s, 0x01);
1731 break;
1732 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1733 value = cirrus_vga_read_gr(s, 0x11);
1734 break;
1735 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1736 value = cirrus_vga_read_gr(s, 0x13);
1737 break;
1738 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1739 value = cirrus_vga_read_gr(s, 0x15);
1740 break;
1741 case (CIRRUS_MMIO_BLTWIDTH + 0):
1742 value = cirrus_vga_read_gr(s, 0x20);
1743 break;
1744 case (CIRRUS_MMIO_BLTWIDTH + 1):
1745 value = cirrus_vga_read_gr(s, 0x21);
1746 break;
1747 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1748 value = cirrus_vga_read_gr(s, 0x22);
1749 break;
1750 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1751 value = cirrus_vga_read_gr(s, 0x23);
1752 break;
1753 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1754 value = cirrus_vga_read_gr(s, 0x24);
1755 break;
1756 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1757 value = cirrus_vga_read_gr(s, 0x25);
1758 break;
1759 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1760 value = cirrus_vga_read_gr(s, 0x26);
1761 break;
1762 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1763 value = cirrus_vga_read_gr(s, 0x27);
1764 break;
1765 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1766 value = cirrus_vga_read_gr(s, 0x28);
1767 break;
1768 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1769 value = cirrus_vga_read_gr(s, 0x29);
1770 break;
1771 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1772 value = cirrus_vga_read_gr(s, 0x2a);
1773 break;
1774 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1775 value = cirrus_vga_read_gr(s, 0x2c);
1776 break;
1777 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1778 value = cirrus_vga_read_gr(s, 0x2d);
1779 break;
1780 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1781 value = cirrus_vga_read_gr(s, 0x2e);
1782 break;
1783 case CIRRUS_MMIO_BLTWRITEMASK:
1784 value = cirrus_vga_read_gr(s, 0x2f);
1785 break;
1786 case CIRRUS_MMIO_BLTMODE:
1787 value = cirrus_vga_read_gr(s, 0x30);
1788 break;
1789 case CIRRUS_MMIO_BLTROP:
1790 value = cirrus_vga_read_gr(s, 0x32);
1791 break;
1792 case CIRRUS_MMIO_BLTMODEEXT:
1793 value = cirrus_vga_read_gr(s, 0x33);
1794 break;
1795 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1796 value = cirrus_vga_read_gr(s, 0x34);
1797 break;
1798 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1799 value = cirrus_vga_read_gr(s, 0x35);
1800 break;
1801 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1802 value = cirrus_vga_read_gr(s, 0x38);
1803 break;
1804 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1805 value = cirrus_vga_read_gr(s, 0x39);
1806 break;
1807 case CIRRUS_MMIO_BLTSTATUS:
1808 value = cirrus_vga_read_gr(s, 0x31);
1809 break;
1810 default:
1811 #ifdef DEBUG_CIRRUS
1812 printf("cirrus: mmio read - address 0x%04x\n", address);
1813 #endif
1814 break;
1815 }
1816
1817 return (uint8_t) value;
1818 }
1819
1820 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1821 uint8_t value)
1822 {
1823 switch (address) {
1824 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1825 cirrus_vga_write_gr(s, 0x00, value);
1826 break;
1827 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1828 cirrus_vga_write_gr(s, 0x10, value);
1829 break;
1830 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1831 cirrus_vga_write_gr(s, 0x12, value);
1832 break;
1833 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1834 cirrus_vga_write_gr(s, 0x14, value);
1835 break;
1836 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1837 cirrus_vga_write_gr(s, 0x01, value);
1838 break;
1839 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1840 cirrus_vga_write_gr(s, 0x11, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1843 cirrus_vga_write_gr(s, 0x13, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1846 cirrus_vga_write_gr(s, 0x15, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTWIDTH + 0):
1849 cirrus_vga_write_gr(s, 0x20, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTWIDTH + 1):
1852 cirrus_vga_write_gr(s, 0x21, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1855 cirrus_vga_write_gr(s, 0x22, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1858 cirrus_vga_write_gr(s, 0x23, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1861 cirrus_vga_write_gr(s, 0x24, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1864 cirrus_vga_write_gr(s, 0x25, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1867 cirrus_vga_write_gr(s, 0x26, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1870 cirrus_vga_write_gr(s, 0x27, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1873 cirrus_vga_write_gr(s, 0x28, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1876 cirrus_vga_write_gr(s, 0x29, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1879 cirrus_vga_write_gr(s, 0x2a, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1882 /* ignored */
1883 break;
1884 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1885 cirrus_vga_write_gr(s, 0x2c, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1888 cirrus_vga_write_gr(s, 0x2d, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1891 cirrus_vga_write_gr(s, 0x2e, value);
1892 break;
1893 case CIRRUS_MMIO_BLTWRITEMASK:
1894 cirrus_vga_write_gr(s, 0x2f, value);
1895 break;
1896 case CIRRUS_MMIO_BLTMODE:
1897 cirrus_vga_write_gr(s, 0x30, value);
1898 break;
1899 case CIRRUS_MMIO_BLTROP:
1900 cirrus_vga_write_gr(s, 0x32, value);
1901 break;
1902 case CIRRUS_MMIO_BLTMODEEXT:
1903 cirrus_vga_write_gr(s, 0x33, value);
1904 break;
1905 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1906 cirrus_vga_write_gr(s, 0x34, value);
1907 break;
1908 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1909 cirrus_vga_write_gr(s, 0x35, value);
1910 break;
1911 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1912 cirrus_vga_write_gr(s, 0x38, value);
1913 break;
1914 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1915 cirrus_vga_write_gr(s, 0x39, value);
1916 break;
1917 case CIRRUS_MMIO_BLTSTATUS:
1918 cirrus_vga_write_gr(s, 0x31, value);
1919 break;
1920 default:
1921 #ifdef DEBUG_CIRRUS
1922 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1923 address, value);
1924 #endif
1925 break;
1926 }
1927 }
1928
1929 /***************************************
1930 *
1931 * write mode 4/5
1932 *
1933 * assume TARGET_PAGE_SIZE >= 16
1934 *
1935 ***************************************/
1936
1937 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1938 unsigned mode,
1939 unsigned offset,
1940 uint32_t mem_value)
1941 {
1942 int x;
1943 unsigned val = mem_value;
1944 uint8_t *dst;
1945
1946 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1947 for (x = 0; x < 8; x++) {
1948 if (val & 0x80) {
1949 *dst = s->cirrus_shadow_gr1;
1950 } else if (mode == 5) {
1951 *dst = s->cirrus_shadow_gr0;
1952 }
1953 val <<= 1;
1954 dst++;
1955 }
1956 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1957 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 7);
1958 }
1959
1960 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1961 unsigned mode,
1962 unsigned offset,
1963 uint32_t mem_value)
1964 {
1965 int x;
1966 unsigned val = mem_value;
1967 uint8_t *dst;
1968
1969 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1970 for (x = 0; x < 8; x++) {
1971 if (val & 0x80) {
1972 *dst = s->cirrus_shadow_gr1;
1973 *(dst + 1) = s->vga.gr[0x11];
1974 } else if (mode == 5) {
1975 *dst = s->cirrus_shadow_gr0;
1976 *(dst + 1) = s->vga.gr[0x10];
1977 }
1978 val <<= 1;
1979 dst += 2;
1980 }
1981 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1982 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 15);
1983 }
1984
1985 /***************************************
1986 *
1987 * memory access between 0xa0000-0xbffff
1988 *
1989 ***************************************/
1990
1991 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1992 {
1993 CirrusVGAState *s = opaque;
1994 unsigned bank_index;
1995 unsigned bank_offset;
1996 uint32_t val;
1997
1998 if ((s->vga.sr[0x07] & 0x01) == 0) {
1999 return vga_mem_readb(s, addr);
2000 }
2001
2002 addr &= 0x1ffff;
2003
2004 if (addr < 0x10000) {
2005 /* XXX handle bitblt */
2006 /* video memory */
2007 bank_index = addr >> 15;
2008 bank_offset = addr & 0x7fff;
2009 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2010 bank_offset += s->cirrus_bank_base[bank_index];
2011 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2012 bank_offset <<= 4;
2013 } else if (s->vga.gr[0x0B] & 0x02) {
2014 bank_offset <<= 3;
2015 }
2016 bank_offset &= s->cirrus_addr_mask;
2017 val = *(s->vga.vram_ptr + bank_offset);
2018 } else
2019 val = 0xff;
2020 } else if (addr >= 0x18000 && addr < 0x18100) {
2021 /* memory-mapped I/O */
2022 val = 0xff;
2023 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2024 val = cirrus_mmio_blt_read(s, addr & 0xff);
2025 }
2026 } else {
2027 val = 0xff;
2028 #ifdef DEBUG_CIRRUS
2029 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2030 #endif
2031 }
2032 return val;
2033 }
2034
2035 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2036 {
2037 uint32_t v;
2038 #ifdef TARGET_WORDS_BIGENDIAN
2039 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2040 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2041 #else
2042 v = cirrus_vga_mem_readb(opaque, addr);
2043 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2044 #endif
2045 return v;
2046 }
2047
2048 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2049 {
2050 uint32_t v;
2051 #ifdef TARGET_WORDS_BIGENDIAN
2052 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2053 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2054 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2055 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2056 #else
2057 v = cirrus_vga_mem_readb(opaque, addr);
2058 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2059 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2060 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2061 #endif
2062 return v;
2063 }
2064
2065 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2066 uint32_t mem_value)
2067 {
2068 CirrusVGAState *s = opaque;
2069 unsigned bank_index;
2070 unsigned bank_offset;
2071 unsigned mode;
2072
2073 if ((s->vga.sr[0x07] & 0x01) == 0) {
2074 vga_mem_writeb(s, addr, mem_value);
2075 return;
2076 }
2077
2078 addr &= 0x1ffff;
2079
2080 if (addr < 0x10000) {
2081 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2082 /* bitblt */
2083 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2084 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2085 cirrus_bitblt_cputovideo_next(s);
2086 }
2087 } else {
2088 /* video memory */
2089 bank_index = addr >> 15;
2090 bank_offset = addr & 0x7fff;
2091 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2092 bank_offset += s->cirrus_bank_base[bank_index];
2093 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2094 bank_offset <<= 4;
2095 } else if (s->vga.gr[0x0B] & 0x02) {
2096 bank_offset <<= 3;
2097 }
2098 bank_offset &= s->cirrus_addr_mask;
2099 mode = s->vga.gr[0x05] & 0x7;
2100 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2101 *(s->vga.vram_ptr + bank_offset) = mem_value;
2102 cpu_physical_memory_set_dirty(s->vga.vram_offset +
2103 bank_offset);
2104 } else {
2105 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2106 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2107 bank_offset,
2108 mem_value);
2109 } else {
2110 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2111 bank_offset,
2112 mem_value);
2113 }
2114 }
2115 }
2116 }
2117 } else if (addr >= 0x18000 && addr < 0x18100) {
2118 /* memory-mapped I/O */
2119 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2120 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2121 }
2122 } else {
2123 #ifdef DEBUG_CIRRUS
2124 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2125 mem_value);
2126 #endif
2127 }
2128 }
2129
2130 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2131 {
2132 #ifdef TARGET_WORDS_BIGENDIAN
2133 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2134 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2135 #else
2136 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2137 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2138 #endif
2139 }
2140
2141 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2142 {
2143 #ifdef TARGET_WORDS_BIGENDIAN
2144 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2145 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2146 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2147 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2148 #else
2149 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2150 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2151 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2152 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2153 #endif
2154 }
2155
2156 static CPUReadMemoryFunc * const cirrus_vga_mem_read[3] = {
2157 cirrus_vga_mem_readb,
2158 cirrus_vga_mem_readw,
2159 cirrus_vga_mem_readl,
2160 };
2161
2162 static CPUWriteMemoryFunc * const cirrus_vga_mem_write[3] = {
2163 cirrus_vga_mem_writeb,
2164 cirrus_vga_mem_writew,
2165 cirrus_vga_mem_writel,
2166 };
2167
2168 /***************************************
2169 *
2170 * hardware cursor
2171 *
2172 ***************************************/
2173
2174 static inline void invalidate_cursor1(CirrusVGAState *s)
2175 {
2176 if (s->last_hw_cursor_size) {
2177 vga_invalidate_scanlines(&s->vga,
2178 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2179 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2180 }
2181 }
2182
2183 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2184 {
2185 const uint8_t *src;
2186 uint32_t content;
2187 int y, y_min, y_max;
2188
2189 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2190 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2191 src += (s->vga.sr[0x13] & 0x3c) * 256;
2192 y_min = 64;
2193 y_max = -1;
2194 for(y = 0; y < 64; y++) {
2195 content = ((uint32_t *)src)[0] |
2196 ((uint32_t *)src)[1] |
2197 ((uint32_t *)src)[2] |
2198 ((uint32_t *)src)[3];
2199 if (content) {
2200 if (y < y_min)
2201 y_min = y;
2202 if (y > y_max)
2203 y_max = y;
2204 }
2205 src += 16;
2206 }
2207 } else {
2208 src += (s->vga.sr[0x13] & 0x3f) * 256;
2209 y_min = 32;
2210 y_max = -1;
2211 for(y = 0; y < 32; y++) {
2212 content = ((uint32_t *)src)[0] |
2213 ((uint32_t *)(src + 128))[0];
2214 if (content) {
2215 if (y < y_min)
2216 y_min = y;
2217 if (y > y_max)
2218 y_max = y;
2219 }
2220 src += 4;
2221 }
2222 }
2223 if (y_min > y_max) {
2224 s->last_hw_cursor_y_start = 0;
2225 s->last_hw_cursor_y_end = 0;
2226 } else {
2227 s->last_hw_cursor_y_start = y_min;
2228 s->last_hw_cursor_y_end = y_max + 1;
2229 }
2230 }
2231
2232 /* NOTE: we do not currently handle the cursor bitmap change, so we
2233 update the cursor only if it moves. */
2234 static void cirrus_cursor_invalidate(VGACommonState *s1)
2235 {
2236 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2237 int size;
2238
2239 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2240 size = 0;
2241 } else {
2242 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2243 size = 64;
2244 else
2245 size = 32;
2246 }
2247 /* invalidate last cursor and new cursor if any change */
2248 if (s->last_hw_cursor_size != size ||
2249 s->last_hw_cursor_x != s->hw_cursor_x ||
2250 s->last_hw_cursor_y != s->hw_cursor_y) {
2251
2252 invalidate_cursor1(s);
2253
2254 s->last_hw_cursor_size = size;
2255 s->last_hw_cursor_x = s->hw_cursor_x;
2256 s->last_hw_cursor_y = s->hw_cursor_y;
2257 /* compute the real cursor min and max y */
2258 cirrus_cursor_compute_yrange(s);
2259 invalidate_cursor1(s);
2260 }
2261 }
2262
2263 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2264 {
2265 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2266 int w, h, bpp, x1, x2, poffset;
2267 unsigned int color0, color1;
2268 const uint8_t *palette, *src;
2269 uint32_t content;
2270
2271 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2272 return;
2273 /* fast test to see if the cursor intersects with the scan line */
2274 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2275 h = 64;
2276 } else {
2277 h = 32;
2278 }
2279 if (scr_y < s->hw_cursor_y ||
2280 scr_y >= (s->hw_cursor_y + h))
2281 return;
2282
2283 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2284 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2285 src += (s->vga.sr[0x13] & 0x3c) * 256;
2286 src += (scr_y - s->hw_cursor_y) * 16;
2287 poffset = 8;
2288 content = ((uint32_t *)src)[0] |
2289 ((uint32_t *)src)[1] |
2290 ((uint32_t *)src)[2] |
2291 ((uint32_t *)src)[3];
2292 } else {
2293 src += (s->vga.sr[0x13] & 0x3f) * 256;
2294 src += (scr_y - s->hw_cursor_y) * 4;
2295 poffset = 128;
2296 content = ((uint32_t *)src)[0] |
2297 ((uint32_t *)(src + 128))[0];
2298 }
2299 /* if nothing to draw, no need to continue */
2300 if (!content)
2301 return;
2302 w = h;
2303
2304 x1 = s->hw_cursor_x;
2305 if (x1 >= s->vga.last_scr_width)
2306 return;
2307 x2 = s->hw_cursor_x + w;
2308 if (x2 > s->vga.last_scr_width)
2309 x2 = s->vga.last_scr_width;
2310 w = x2 - x1;
2311 palette = s->cirrus_hidden_palette;
2312 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2313 c6_to_8(palette[0x0 * 3 + 1]),
2314 c6_to_8(palette[0x0 * 3 + 2]));
2315 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2316 c6_to_8(palette[0xf * 3 + 1]),
2317 c6_to_8(palette[0xf * 3 + 2]));
2318 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2319 d1 += x1 * bpp;
2320 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2321 default:
2322 break;
2323 case 8:
2324 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2325 break;
2326 case 15:
2327 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2328 break;
2329 case 16:
2330 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2331 break;
2332 case 32:
2333 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2334 break;
2335 }
2336 }
2337
2338 /***************************************
2339 *
2340 * LFB memory access
2341 *
2342 ***************************************/
2343
2344 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2345 {
2346 CirrusVGAState *s = opaque;
2347 uint32_t ret;
2348
2349 addr &= s->cirrus_addr_mask;
2350
2351 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2352 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2353 /* memory-mapped I/O */
2354 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2355 } else if (0) {
2356 /* XXX handle bitblt */
2357 ret = 0xff;
2358 } else {
2359 /* video memory */
2360 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2361 addr <<= 4;
2362 } else if (s->vga.gr[0x0B] & 0x02) {
2363 addr <<= 3;
2364 }
2365 addr &= s->cirrus_addr_mask;
2366 ret = *(s->vga.vram_ptr + addr);
2367 }
2368
2369 return ret;
2370 }
2371
2372 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2373 {
2374 uint32_t v;
2375 #ifdef TARGET_WORDS_BIGENDIAN
2376 v = cirrus_linear_readb(opaque, addr) << 8;
2377 v |= cirrus_linear_readb(opaque, addr + 1);
2378 #else
2379 v = cirrus_linear_readb(opaque, addr);
2380 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2381 #endif
2382 return v;
2383 }
2384
2385 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2386 {
2387 uint32_t v;
2388 #ifdef TARGET_WORDS_BIGENDIAN
2389 v = cirrus_linear_readb(opaque, addr) << 24;
2390 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2391 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2392 v |= cirrus_linear_readb(opaque, addr + 3);
2393 #else
2394 v = cirrus_linear_readb(opaque, addr);
2395 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2396 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2397 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2398 #endif
2399 return v;
2400 }
2401
2402 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2403 uint32_t val)
2404 {
2405 CirrusVGAState *s = opaque;
2406 unsigned mode;
2407
2408 addr &= s->cirrus_addr_mask;
2409
2410 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2411 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2412 /* memory-mapped I/O */
2413 cirrus_mmio_blt_write(s, addr & 0xff, val);
2414 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2415 /* bitblt */
2416 *s->cirrus_srcptr++ = (uint8_t) val;
2417 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2418 cirrus_bitblt_cputovideo_next(s);
2419 }
2420 } else {
2421 /* video memory */
2422 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2423 addr <<= 4;
2424 } else if (s->vga.gr[0x0B] & 0x02) {
2425 addr <<= 3;
2426 }
2427 addr &= s->cirrus_addr_mask;
2428
2429 mode = s->vga.gr[0x05] & 0x7;
2430 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2431 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2432 cpu_physical_memory_set_dirty(s->vga.vram_offset + addr);
2433 } else {
2434 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2435 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2436 } else {
2437 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2438 }
2439 }
2440 }
2441 }
2442
2443 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2444 uint32_t val)
2445 {
2446 #ifdef TARGET_WORDS_BIGENDIAN
2447 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2448 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2449 #else
2450 cirrus_linear_writeb(opaque, addr, val & 0xff);
2451 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2452 #endif
2453 }
2454
2455 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2456 uint32_t val)
2457 {
2458 #ifdef TARGET_WORDS_BIGENDIAN
2459 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2460 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2461 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2462 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2463 #else
2464 cirrus_linear_writeb(opaque, addr, val & 0xff);
2465 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2466 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2467 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2468 #endif
2469 }
2470
2471
2472 static CPUReadMemoryFunc * const cirrus_linear_read[3] = {
2473 cirrus_linear_readb,
2474 cirrus_linear_readw,
2475 cirrus_linear_readl,
2476 };
2477
2478 static CPUWriteMemoryFunc * const cirrus_linear_write[3] = {
2479 cirrus_linear_writeb,
2480 cirrus_linear_writew,
2481 cirrus_linear_writel,
2482 };
2483
2484 /***************************************
2485 *
2486 * system to screen memory access
2487 *
2488 ***************************************/
2489
2490
2491 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2492 {
2493 uint32_t ret;
2494
2495 /* XXX handle bitblt */
2496 ret = 0xff;
2497 return ret;
2498 }
2499
2500 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2501 {
2502 uint32_t v;
2503 #ifdef TARGET_WORDS_BIGENDIAN
2504 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2505 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2506 #else
2507 v = cirrus_linear_bitblt_readb(opaque, addr);
2508 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2509 #endif
2510 return v;
2511 }
2512
2513 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2514 {
2515 uint32_t v;
2516 #ifdef TARGET_WORDS_BIGENDIAN
2517 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2518 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2519 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2520 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2521 #else
2522 v = cirrus_linear_bitblt_readb(opaque, addr);
2523 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2524 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2525 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2526 #endif
2527 return v;
2528 }
2529
2530 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2531 uint32_t val)
2532 {
2533 CirrusVGAState *s = opaque;
2534
2535 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2536 /* bitblt */
2537 *s->cirrus_srcptr++ = (uint8_t) val;
2538 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2539 cirrus_bitblt_cputovideo_next(s);
2540 }
2541 }
2542 }
2543
2544 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2545 uint32_t val)
2546 {
2547 #ifdef TARGET_WORDS_BIGENDIAN
2548 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2549 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2550 #else
2551 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2552 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2553 #endif
2554 }
2555
2556 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2557 uint32_t val)
2558 {
2559 #ifdef TARGET_WORDS_BIGENDIAN
2560 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2561 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2562 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2563 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2564 #else
2565 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2566 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2567 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2568 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2569 #endif
2570 }
2571
2572
2573 static CPUReadMemoryFunc * const cirrus_linear_bitblt_read[3] = {
2574 cirrus_linear_bitblt_readb,
2575 cirrus_linear_bitblt_readw,
2576 cirrus_linear_bitblt_readl,
2577 };
2578
2579 static CPUWriteMemoryFunc * const cirrus_linear_bitblt_write[3] = {
2580 cirrus_linear_bitblt_writeb,
2581 cirrus_linear_bitblt_writew,
2582 cirrus_linear_bitblt_writel,
2583 };
2584
2585 static void map_linear_vram(CirrusVGAState *s)
2586 {
2587 if (!s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
2588 s->vga.map_addr = s->vga.lfb_addr;
2589 s->vga.map_end = s->vga.lfb_end;
2590 cpu_register_physical_memory(s->vga.map_addr, s->vga.map_end - s->vga.map_addr, s->vga.vram_offset);
2591 }
2592
2593 if (!s->vga.map_addr)
2594 return;
2595
2596 s->vga.lfb_vram_mapped = 0;
2597
2598 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2599 && !((s->vga.sr[0x07] & 0x01) == 0)
2600 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2601 && !(s->vga.gr[0x0B] & 0x02)) {
2602
2603 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2604 (s->vga.vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2605 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2606 (s->vga.vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2607
2608 s->vga.lfb_vram_mapped = 1;
2609 }
2610 else {
2611 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2612 s->vga.vga_io_memory);
2613 }
2614
2615 vga_dirty_log_start(&s->vga);
2616 }
2617
2618 static void unmap_linear_vram(CirrusVGAState *s)
2619 {
2620 if (s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end)
2621 s->vga.map_addr = s->vga.map_end = 0;
2622
2623 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2624 s->vga.vga_io_memory);
2625 }
2626
2627 /* Compute the memory access functions */
2628 static void cirrus_update_memory_access(CirrusVGAState *s)
2629 {
2630 unsigned mode;
2631
2632 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2633 goto generic_io;
2634 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2635 goto generic_io;
2636 } else {
2637 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2638 goto generic_io;
2639 } else if (s->vga.gr[0x0B] & 0x02) {
2640 goto generic_io;
2641 }
2642
2643 mode = s->vga.gr[0x05] & 0x7;
2644 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2645 map_linear_vram(s);
2646 } else {
2647 generic_io:
2648 unmap_linear_vram(s);
2649 }
2650 }
2651 }
2652
2653
2654 /* I/O ports */
2655
2656 static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
2657 {
2658 CirrusVGAState *c = opaque;
2659 VGACommonState *s = &c->vga;
2660 int val, index;
2661
2662 if (vga_ioport_invalid(s, addr)) {
2663 val = 0xff;
2664 } else {
2665 switch (addr) {
2666 case 0x3c0:
2667 if (s->ar_flip_flop == 0) {
2668 val = s->ar_index;
2669 } else {
2670 val = 0;
2671 }
2672 break;
2673 case 0x3c1:
2674 index = s->ar_index & 0x1f;
2675 if (index < 21)
2676 val = s->ar[index];
2677 else
2678 val = 0;
2679 break;
2680 case 0x3c2:
2681 val = s->st00;
2682 break;
2683 case 0x3c4:
2684 val = s->sr_index;
2685 break;
2686 case 0x3c5:
2687 val = cirrus_vga_read_sr(c);
2688 break;
2689 #ifdef DEBUG_VGA_REG
2690 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2691 #endif
2692 break;
2693 case 0x3c6:
2694 val = cirrus_read_hidden_dac(c);
2695 break;
2696 case 0x3c7:
2697 val = s->dac_state;
2698 break;
2699 case 0x3c8:
2700 val = s->dac_write_index;
2701 c->cirrus_hidden_dac_lockindex = 0;
2702 break;
2703 case 0x3c9:
2704 val = cirrus_vga_read_palette(c);
2705 break;
2706 case 0x3ca:
2707 val = s->fcr;
2708 break;
2709 case 0x3cc:
2710 val = s->msr;
2711 break;
2712 case 0x3ce:
2713 val = s->gr_index;
2714 break;
2715 case 0x3cf:
2716 val = cirrus_vga_read_gr(c, s->gr_index);
2717 #ifdef DEBUG_VGA_REG
2718 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2719 #endif
2720 break;
2721 case 0x3b4:
2722 case 0x3d4:
2723 val = s->cr_index;
2724 break;
2725 case 0x3b5:
2726 case 0x3d5:
2727 val = cirrus_vga_read_cr(c, s->cr_index);
2728 #ifdef DEBUG_VGA_REG
2729 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2730 #endif
2731 break;
2732 case 0x3ba:
2733 case 0x3da:
2734 /* just toggle to fool polling */
2735 val = s->st01 = s->retrace(s);
2736 s->ar_flip_flop = 0;
2737 break;
2738 default:
2739 val = 0x00;
2740 break;
2741 }
2742 }
2743 #if defined(DEBUG_VGA)
2744 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2745 #endif
2746 return val;
2747 }
2748
2749 static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2750 {
2751 CirrusVGAState *c = opaque;
2752 VGACommonState *s = &c->vga;
2753 int index;
2754
2755 /* check port range access depending on color/monochrome mode */
2756 if (vga_ioport_invalid(s, addr)) {
2757 return;
2758 }
2759 #ifdef DEBUG_VGA
2760 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2761 #endif
2762
2763 switch (addr) {
2764 case 0x3c0:
2765 if (s->ar_flip_flop == 0) {
2766 val &= 0x3f;
2767 s->ar_index = val;
2768 } else {
2769 index = s->ar_index & 0x1f;
2770 switch (index) {
2771 case 0x00 ... 0x0f:
2772 s->ar[index] = val & 0x3f;
2773 break;
2774 case 0x10:
2775 s->ar[index] = val & ~0x10;
2776 break;
2777 case 0x11:
2778 s->ar[index] = val;
2779 break;
2780 case 0x12:
2781 s->ar[index] = val & ~0xc0;
2782 break;
2783 case 0x13:
2784 s->ar[index] = val & ~0xf0;
2785 break;
2786 case 0x14:
2787 s->ar[index] = val & ~0xf0;
2788 break;
2789 default:
2790 break;
2791 }
2792 }
2793 s->ar_flip_flop ^= 1;
2794 break;
2795 case 0x3c2:
2796 s->msr = val & ~0x10;
2797 s->update_retrace_info(s);
2798 break;
2799 case 0x3c4:
2800 s->sr_index = val;
2801 break;
2802 case 0x3c5:
2803 #ifdef DEBUG_VGA_REG
2804 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2805 #endif
2806 cirrus_vga_write_sr(c, val);
2807 break;
2808 break;
2809 case 0x3c6:
2810 cirrus_write_hidden_dac(c, val);
2811 break;
2812 case 0x3c7:
2813 s->dac_read_index = val;
2814 s->dac_sub_index = 0;
2815 s->dac_state = 3;
2816 break;
2817 case 0x3c8:
2818 s->dac_write_index = val;
2819 s->dac_sub_index = 0;
2820 s->dac_state = 0;
2821 break;
2822 case 0x3c9:
2823 cirrus_vga_write_palette(c, val);
2824 break;
2825 case 0x3ce:
2826 s->gr_index = val;
2827 break;
2828 case 0x3cf:
2829 #ifdef DEBUG_VGA_REG
2830 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2831 #endif
2832 cirrus_vga_write_gr(c, s->gr_index, val);
2833 break;
2834 case 0x3b4:
2835 case 0x3d4:
2836 s->cr_index = val;
2837 break;
2838 case 0x3b5:
2839 case 0x3d5:
2840 #ifdef DEBUG_VGA_REG
2841 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2842 #endif
2843 cirrus_vga_write_cr(c, val);
2844 break;
2845 case 0x3ba:
2846 case 0x3da:
2847 s->fcr = val & 0x10;
2848 break;
2849 }
2850 }
2851
2852 /***************************************
2853 *
2854 * memory-mapped I/O access
2855 *
2856 ***************************************/
2857
2858 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2859 {
2860 CirrusVGAState *s = opaque;
2861
2862 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2863
2864 if (addr >= 0x100) {
2865 return cirrus_mmio_blt_read(s, addr - 0x100);
2866 } else {
2867 return cirrus_vga_ioport_read(s, addr + 0x3c0);
2868 }
2869 }
2870
2871 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2872 {
2873 uint32_t v;
2874 #ifdef TARGET_WORDS_BIGENDIAN
2875 v = cirrus_mmio_readb(opaque, addr) << 8;
2876 v |= cirrus_mmio_readb(opaque, addr + 1);
2877 #else
2878 v = cirrus_mmio_readb(opaque, addr);
2879 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2880 #endif
2881 return v;
2882 }
2883
2884 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2885 {
2886 uint32_t v;
2887 #ifdef TARGET_WORDS_BIGENDIAN
2888 v = cirrus_mmio_readb(opaque, addr) << 24;
2889 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2890 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2891 v |= cirrus_mmio_readb(opaque, addr + 3);
2892 #else
2893 v = cirrus_mmio_readb(opaque, addr);
2894 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2895 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2896 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2897 #endif
2898 return v;
2899 }
2900
2901 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2902 uint32_t val)
2903 {
2904 CirrusVGAState *s = opaque;
2905
2906 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2907
2908 if (addr >= 0x100) {
2909 cirrus_mmio_blt_write(s, addr - 0x100, val);
2910 } else {
2911 cirrus_vga_ioport_write(s, addr + 0x3c0, val);
2912 }
2913 }
2914
2915 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2916 uint32_t val)
2917 {
2918 #ifdef TARGET_WORDS_BIGENDIAN
2919 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2920 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2921 #else
2922 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2923 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2924 #endif
2925 }
2926
2927 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
2928 uint32_t val)
2929 {
2930 #ifdef TARGET_WORDS_BIGENDIAN
2931 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
2932 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2933 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2934 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
2935 #else
2936 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2937 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2938 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2939 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2940 #endif
2941 }
2942
2943
2944 static CPUReadMemoryFunc * const cirrus_mmio_read[3] = {
2945 cirrus_mmio_readb,
2946 cirrus_mmio_readw,
2947 cirrus_mmio_readl,
2948 };
2949
2950 static CPUWriteMemoryFunc * const cirrus_mmio_write[3] = {
2951 cirrus_mmio_writeb,
2952 cirrus_mmio_writew,
2953 cirrus_mmio_writel,
2954 };
2955
2956 /* load/save state */
2957
2958 static void cirrus_vga_save(QEMUFile *f, void *opaque)
2959 {
2960 CirrusVGAState *s = opaque;
2961
2962 qemu_put_be32s(f, &s->vga.latch);
2963 qemu_put_8s(f, &s->vga.sr_index);
2964 qemu_put_buffer(f, s->vga.sr, 256);
2965 qemu_put_8s(f, &s->vga.gr_index);
2966 qemu_put_8s(f, &s->cirrus_shadow_gr0);
2967 qemu_put_8s(f, &s->cirrus_shadow_gr1);
2968 qemu_put_buffer(f, s->vga.gr + 2, 254);
2969 qemu_put_8s(f, &s->vga.ar_index);
2970 qemu_put_buffer(f, s->vga.ar, 21);
2971 qemu_put_be32(f, s->vga.ar_flip_flop);
2972 qemu_put_8s(f, &s->vga.cr_index);
2973 qemu_put_buffer(f, s->vga.cr, 256);
2974 qemu_put_8s(f, &s->vga.msr);
2975 qemu_put_8s(f, &s->vga.fcr);
2976 qemu_put_8s(f, &s->vga.st00);
2977 qemu_put_8s(f, &s->vga.st01);
2978
2979 qemu_put_8s(f, &s->vga.dac_state);
2980 qemu_put_8s(f, &s->vga.dac_sub_index);
2981 qemu_put_8s(f, &s->vga.dac_read_index);
2982 qemu_put_8s(f, &s->vga.dac_write_index);
2983 qemu_put_buffer(f, s->vga.dac_cache, 3);
2984 qemu_put_buffer(f, s->vga.palette, 768);
2985
2986 qemu_put_be32(f, s->vga.bank_offset);
2987
2988 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
2989 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
2990
2991 qemu_put_be32s(f, &s->hw_cursor_x);
2992 qemu_put_be32s(f, &s->hw_cursor_y);
2993 /* XXX: we do not save the bitblt state - we assume we do not save
2994 the state when the blitter is active */
2995 }
2996
2997 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
2998 {
2999 CirrusVGAState *s = opaque;
3000
3001 if (version_id > 2)
3002 return -EINVAL;
3003
3004 qemu_get_be32s(f, &s->vga.latch);
3005 qemu_get_8s(f, &s->vga.sr_index);
3006 qemu_get_buffer(f, s->vga.sr, 256);
3007 qemu_get_8s(f, &s->vga.gr_index);
3008 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3009 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3010 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3011 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3012 qemu_get_buffer(f, s->vga.gr + 2, 254);
3013 qemu_get_8s(f, &s->vga.ar_index);
3014 qemu_get_buffer(f, s->vga.ar, 21);
3015 s->vga.ar_flip_flop=qemu_get_be32(f);
3016 qemu_get_8s(f, &s->vga.cr_index);
3017 qemu_get_buffer(f, s->vga.cr, 256);
3018 qemu_get_8s(f, &s->vga.msr);
3019 qemu_get_8s(f, &s->vga.fcr);
3020 qemu_get_8s(f, &s->vga.st00);
3021 qemu_get_8s(f, &s->vga.st01);
3022
3023 qemu_get_8s(f, &s->vga.dac_state);
3024 qemu_get_8s(f, &s->vga.dac_sub_index);
3025 qemu_get_8s(f, &s->vga.dac_read_index);
3026 qemu_get_8s(f, &s->vga.dac_write_index);
3027 qemu_get_buffer(f, s->vga.dac_cache, 3);
3028 qemu_get_buffer(f, s->vga.palette, 768);
3029
3030 s->vga.bank_offset = qemu_get_be32(f);
3031
3032 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3033 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3034
3035 qemu_get_be32s(f, &s->hw_cursor_x);
3036 qemu_get_be32s(f, &s->hw_cursor_y);
3037
3038 cirrus_update_memory_access(s);
3039 /* force refresh */
3040 s->vga.graphic_mode = -1;
3041 cirrus_update_bank_ptr(s, 0);
3042 cirrus_update_bank_ptr(s, 1);
3043 return 0;
3044 }
3045
3046 static void pci_cirrus_vga_save(QEMUFile *f, void *opaque)
3047 {
3048 PCICirrusVGAState *s = opaque;
3049
3050 pci_device_save(&s->dev, f);
3051 cirrus_vga_save(f, &s->cirrus_vga);
3052 }
3053
3054 static int pci_cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3055 {
3056 PCICirrusVGAState *s = opaque;
3057 int ret;
3058
3059 if (version_id > 2)
3060 return -EINVAL;
3061
3062 if (version_id >= 2) {
3063 ret = pci_device_load(&s->dev, f);
3064 if (ret < 0)
3065 return ret;
3066 }
3067
3068 return cirrus_vga_load(f, &s->cirrus_vga, version_id);
3069 }
3070
3071 /***************************************
3072 *
3073 * initialize
3074 *
3075 ***************************************/
3076
3077 static void cirrus_reset(void *opaque)
3078 {
3079 CirrusVGAState *s = opaque;
3080
3081 vga_common_reset(&s->vga);
3082 unmap_linear_vram(s);
3083 s->vga.sr[0x06] = 0x0f;
3084 if (s->device_id == CIRRUS_ID_CLGD5446) {
3085 /* 4MB 64 bit memory config, always PCI */
3086 s->vga.sr[0x1F] = 0x2d; // MemClock
3087 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
3088 s->vga.sr[0x0f] = 0x98;
3089 s->vga.sr[0x17] = 0x20;
3090 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3091 } else {
3092 s->vga.sr[0x1F] = 0x22; // MemClock
3093 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
3094 s->vga.sr[0x17] = s->bustype;
3095 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3096 }
3097 s->vga.cr[0x27] = s->device_id;
3098
3099 /* Win2K seems to assume that the pattern buffer is at 0xff
3100 initially ! */
3101 memset(s->vga.vram_ptr, 0xff, s->real_vram_size);
3102
3103 s->cirrus_hidden_dac_lockindex = 5;
3104 s->cirrus_hidden_dac_data = 0;
3105 }
3106
3107 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3108 {
3109 int i;
3110 static int inited;
3111
3112 if (!inited) {
3113 inited = 1;
3114 for(i = 0;i < 256; i++)
3115 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3116 rop_to_index[CIRRUS_ROP_0] = 0;
3117 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3118 rop_to_index[CIRRUS_ROP_NOP] = 2;
3119 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3120 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3121 rop_to_index[CIRRUS_ROP_SRC] = 5;
3122 rop_to_index[CIRRUS_ROP_1] = 6;
3123 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3124 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3125 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3126 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3127 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3128 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3129 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3130 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3131 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3132 s->device_id = device_id;
3133 if (is_pci)
3134 s->bustype = CIRRUS_BUSTYPE_PCI;
3135 else
3136 s->bustype = CIRRUS_BUSTYPE_ISA;
3137 }
3138
3139 register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
3140
3141 register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
3142 register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
3143 register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
3144 register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
3145
3146 register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
3147
3148 register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
3149 register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
3150 register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
3151 register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
3152
3153 s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
3154 cirrus_vga_mem_write, s);
3155 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3156 s->vga.vga_io_memory);
3157 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3158
3159 /* I/O handler for LFB */
3160 s->cirrus_linear_io_addr =
3161 cpu_register_io_memory(cirrus_linear_read, cirrus_linear_write, s);
3162
3163 /* I/O handler for LFB */
3164 s->cirrus_linear_bitblt_io_addr =
3165 cpu_register_io_memory(cirrus_linear_bitblt_read,
3166 cirrus_linear_bitblt_write, s);
3167
3168 /* I/O handler for memory-mapped I/O */
3169 s->cirrus_mmio_io_addr =
3170 cpu_register_io_memory(cirrus_mmio_read, cirrus_mmio_write, s);
3171
3172 s->real_vram_size =
3173 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
3174
3175 /* XXX: s->vga.vram_size must be a power of two */
3176 s->cirrus_addr_mask = s->real_vram_size - 1;
3177 s->linear_mmio_mask = s->real_vram_size - 256;
3178
3179 s->vga.get_bpp = cirrus_get_bpp;
3180 s->vga.get_offsets = cirrus_get_offsets;
3181 s->vga.get_resolution = cirrus_get_resolution;
3182 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
3183 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
3184
3185 qemu_register_reset(cirrus_reset, s);
3186 cirrus_reset(s);
3187 }
3188
3189 /***************************************
3190 *
3191 * ISA bus support
3192 *
3193 ***************************************/
3194
3195 void isa_cirrus_vga_init(void)
3196 {
3197 CirrusVGAState *s;
3198
3199 s = qemu_mallocz(sizeof(CirrusVGAState));
3200
3201 vga_common_init(&s->vga, VGA_RAM_SIZE);
3202 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3203 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3204 s->vga.screen_dump, s->vga.text_update,
3205 &s->vga);
3206 register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
3207 /* XXX ISA-LFB support */
3208 }
3209
3210 /***************************************
3211 *
3212 * PCI bus support
3213 *
3214 ***************************************/
3215
3216 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3217 uint32_t addr, uint32_t size, int type)
3218 {
3219 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3220
3221 /* XXX: add byte swapping apertures */
3222 cpu_register_physical_memory(addr, s->vga.vram_size,
3223 s->cirrus_linear_io_addr);
3224 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3225 s->cirrus_linear_bitblt_io_addr);
3226
3227 s->vga.map_addr = s->vga.map_end = 0;
3228 s->vga.lfb_addr = addr & TARGET_PAGE_MASK;
3229 s->vga.lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3230 /* account for overflow */
3231 if (s->vga.lfb_end < addr + VGA_RAM_SIZE)
3232 s->vga.lfb_end = addr + VGA_RAM_SIZE;
3233
3234 vga_dirty_log_start(&s->vga);
3235 }
3236
3237 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3238 uint32_t addr, uint32_t size, int type)
3239 {
3240 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3241
3242 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3243 s->cirrus_mmio_io_addr);
3244 }
3245
3246 static void pci_cirrus_write_config(PCIDevice *d,
3247 uint32_t address, uint32_t val, int len)
3248 {
3249 PCICirrusVGAState *pvs = DO_UPCAST(PCICirrusVGAState, dev, d);
3250 CirrusVGAState *s = &pvs->cirrus_vga;
3251
3252 pci_default_write_config(d, address, val, len);
3253 if (s->vga.map_addr && d->io_regions[0].addr == -1)
3254 s->vga.map_addr = 0;
3255 cirrus_update_memory_access(s);
3256 }
3257
3258 static int pci_cirrus_vga_initfn(PCIDevice *dev)
3259 {
3260 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
3261 CirrusVGAState *s = &d->cirrus_vga;
3262 uint8_t *pci_conf = d->dev.config;
3263 int device_id = CIRRUS_ID_CLGD5446;
3264
3265 /* setup VGA */
3266 vga_common_init(&s->vga, VGA_RAM_SIZE);
3267 cirrus_init_common(s, device_id, 1);
3268 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3269 s->vga.screen_dump, s->vga.text_update,
3270 &s->vga);
3271
3272 /* setup PCI */
3273 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CIRRUS);
3274 pci_config_set_device_id(pci_conf, device_id);
3275 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3276 pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
3277 pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
3278
3279 /* setup memory space */
3280 /* memory #0 LFB */
3281 /* memory #1 memory-mapped I/O */
3282 /* XXX: s->vga.vram_size must be a power of two */
3283 pci_register_bar((PCIDevice *)d, 0, 0x2000000,
3284 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3285 if (device_id == CIRRUS_ID_CLGD5446) {
3286 pci_register_bar((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3287 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3288 }
3289 register_savevm("cirrus_vga", 0, 2, pci_cirrus_vga_save, pci_cirrus_vga_load, d);
3290 /* XXX: ROM BIOS */
3291 return 0;
3292 }
3293
3294 void pci_cirrus_vga_init(PCIBus *bus)
3295 {
3296 pci_create_simple(bus, -1, "Cirrus VGA");
3297 }
3298
3299 static PCIDeviceInfo cirrus_vga_info = {
3300 .qdev.name = "Cirrus VGA",
3301 .qdev.size = sizeof(PCICirrusVGAState),
3302 .init = pci_cirrus_vga_initfn,
3303 .config_write = pci_cirrus_write_config,
3304 };
3305
3306 static void cirrus_vga_register(void)
3307 {
3308 pci_qdev_register(&cirrus_vga_info);
3309 }
3310 device_init(cirrus_vga_register);
QEmu