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vga roms: move loading from pc.c to vga drivers.
[qemu/mdroth.git] / hw / cirrus_vga.c
blobf4c9cdf8a639b5dc9e9c1c38f1379903eb1bf649
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 /*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "hw.h"
30 #include "pc.h"
31 #include "pci.h"
32 #include "console.h"
33 #include "vga_int.h"
34 #include "kvm.h"
35 #include "loader.h"
36
37 /*
38 * TODO:
39 * - destination write mask support not complete (bits 5..7)
40 * - optimize linear mappings
41 * - optimize bitblt functions
42 */
43
44 //#define DEBUG_CIRRUS
45 //#define DEBUG_BITBLT
46
47 /***************************************
48 *
49 * definitions
50 *
51 ***************************************/
52
53 // ID
54 #define CIRRUS_ID_CLGD5422 (0x23<<2)
55 #define CIRRUS_ID_CLGD5426 (0x24<<2)
56 #define CIRRUS_ID_CLGD5424 (0x25<<2)
57 #define CIRRUS_ID_CLGD5428 (0x26<<2)
58 #define CIRRUS_ID_CLGD5430 (0x28<<2)
59 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
60 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
61 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
62
63 // sequencer 0x07
64 #define CIRRUS_SR7_BPP_VGA 0x00
65 #define CIRRUS_SR7_BPP_SVGA 0x01
66 #define CIRRUS_SR7_BPP_MASK 0x0e
67 #define CIRRUS_SR7_BPP_8 0x00
68 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
69 #define CIRRUS_SR7_BPP_24 0x04
70 #define CIRRUS_SR7_BPP_16 0x06
71 #define CIRRUS_SR7_BPP_32 0x08
72 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
73
74 // sequencer 0x0f
75 #define CIRRUS_MEMSIZE_512k 0x08
76 #define CIRRUS_MEMSIZE_1M 0x10
77 #define CIRRUS_MEMSIZE_2M 0x18
78 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
79
80 // sequencer 0x12
81 #define CIRRUS_CURSOR_SHOW 0x01
82 #define CIRRUS_CURSOR_HIDDENPEL 0x02
83 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
84
85 // sequencer 0x17
86 #define CIRRUS_BUSTYPE_VLBFAST 0x10
87 #define CIRRUS_BUSTYPE_PCI 0x20
88 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
89 #define CIRRUS_BUSTYPE_ISA 0x38
90 #define CIRRUS_MMIO_ENABLE 0x04
91 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
92 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
93
94 // control 0x0b
95 #define CIRRUS_BANKING_DUAL 0x01
96 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
97
98 // control 0x30
99 #define CIRRUS_BLTMODE_BACKWARDS 0x01
100 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
101 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
102 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
103 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
104 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
105 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
106 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
107 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
108 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
109 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
110
111 // control 0x31
112 #define CIRRUS_BLT_BUSY 0x01
113 #define CIRRUS_BLT_START 0x02
114 #define CIRRUS_BLT_RESET 0x04
115 #define CIRRUS_BLT_FIFOUSED 0x10
116 #define CIRRUS_BLT_AUTOSTART 0x80
117
118 // control 0x32
119 #define CIRRUS_ROP_0 0x00
120 #define CIRRUS_ROP_SRC_AND_DST 0x05
121 #define CIRRUS_ROP_NOP 0x06
122 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
123 #define CIRRUS_ROP_NOTDST 0x0b
124 #define CIRRUS_ROP_SRC 0x0d
125 #define CIRRUS_ROP_1 0x0e
126 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
127 #define CIRRUS_ROP_SRC_XOR_DST 0x59
128 #define CIRRUS_ROP_SRC_OR_DST 0x6d
129 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
130 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
131 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
132 #define CIRRUS_ROP_NOTSRC 0xd0
133 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
134 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
135
136 #define CIRRUS_ROP_NOP_INDEX 2
137 #define CIRRUS_ROP_SRC_INDEX 5
138
139 // control 0x33
140 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
141 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
142 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
143
144 // memory-mapped IO
145 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
146 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
147 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
148 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
149 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
150 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
151 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
152 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
153 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
154 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
155 #define CIRRUS_MMIO_BLTROP 0x1a // byte
156 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
157 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
159 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
160 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
161 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
167 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
168 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
169 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
170 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
171 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
172 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
173 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
174
175 // PCI 0x04: command(word), 0x06(word): status
176 #define PCI_COMMAND_IOACCESS 0x0001
177 #define PCI_COMMAND_MEMACCESS 0x0002
178 #define PCI_COMMAND_BUSMASTER 0x0004
179 #define PCI_COMMAND_SPECIALCYCLE 0x0008
180 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
181 #define PCI_COMMAND_PALETTESNOOPING 0x0020
182 #define PCI_COMMAND_PARITYDETECTION 0x0040
183 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
184 #define PCI_COMMAND_SERR 0x0100
185 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
186 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
187 #define PCI_CLASS_BASE_DISPLAY 0x03
188 // PCI 0x08, 0x00ff0000
189 #define PCI_CLASS_SUB_VGA 0x00
190 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
191 // 0x10-0x3f (headertype 00h)
192 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
193 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
194 #define PCI_MAP_MEM 0x0
195 #define PCI_MAP_IO 0x1
196 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
197 #define PCI_MAP_IO_ADDR_MASK (~0x3)
198 #define PCI_MAP_MEMFLAGS_32BIT 0x0
199 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
200 #define PCI_MAP_MEMFLAGS_64BIT 0x4
201 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
202 // PCI 0x28: cardbus CIS pointer
203 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
204 // PCI 0x30: expansion ROM base address
205 #define PCI_ROMBIOS_ENABLED 0x1
206 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
207 // PCI 0x38: reserved
208 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
209
210 #define CIRRUS_PNPMMIO_SIZE 0x1000
211
212 #define ABS(a) ((signed)(a) > 0 ? a : -a)
213
214 #define BLTUNSAFE(s) \
215 ( \
216 ( /* check dst is within bounds */ \
217 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
218 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
219 (s)->vga.vram_size \
220 ) || \
221 ( /* check src is within bounds */ \
222 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
223 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
224 (s)->vga.vram_size \
225 ) \
226 )
227
228 struct CirrusVGAState;
229 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
230 uint8_t * dst, const uint8_t * src,
231 int dstpitch, int srcpitch,
232 int bltwidth, int bltheight);
233 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
234 uint8_t *dst, int dst_pitch, int width, int height);
235
236 typedef struct CirrusVGAState {
237 VGACommonState vga;
238
239 int cirrus_linear_io_addr;
240 int cirrus_linear_bitblt_io_addr;
241 int cirrus_mmio_io_addr;
242 uint32_t cirrus_addr_mask;
243 uint32_t linear_mmio_mask;
244 uint8_t cirrus_shadow_gr0;
245 uint8_t cirrus_shadow_gr1;
246 uint8_t cirrus_hidden_dac_lockindex;
247 uint8_t cirrus_hidden_dac_data;
248 uint32_t cirrus_bank_base[2];
249 uint32_t cirrus_bank_limit[2];
250 uint8_t cirrus_hidden_palette[48];
251 uint32_t hw_cursor_x;
252 uint32_t hw_cursor_y;
253 int cirrus_blt_pixelwidth;
254 int cirrus_blt_width;
255 int cirrus_blt_height;
256 int cirrus_blt_dstpitch;
257 int cirrus_blt_srcpitch;
258 uint32_t cirrus_blt_fgcol;
259 uint32_t cirrus_blt_bgcol;
260 uint32_t cirrus_blt_dstaddr;
261 uint32_t cirrus_blt_srcaddr;
262 uint8_t cirrus_blt_mode;
263 uint8_t cirrus_blt_modeext;
264 cirrus_bitblt_rop_t cirrus_rop;
265 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
266 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
267 uint8_t *cirrus_srcptr;
268 uint8_t *cirrus_srcptr_end;
269 uint32_t cirrus_srccounter;
270 /* hwcursor display state */
271 int last_hw_cursor_size;
272 int last_hw_cursor_x;
273 int last_hw_cursor_y;
274 int last_hw_cursor_y_start;
275 int last_hw_cursor_y_end;
276 int real_vram_size; /* XXX: suppress that */
277 int device_id;
278 int bustype;
279 } CirrusVGAState;
280
281 typedef struct PCICirrusVGAState {
282 PCIDevice dev;
283 CirrusVGAState cirrus_vga;
284 } PCICirrusVGAState;
285
286 static uint8_t rop_to_index[256];
287
288 /***************************************
289 *
290 * prototypes.
291 *
292 ***************************************/
293
294
295 static void cirrus_bitblt_reset(CirrusVGAState *s);
296 static void cirrus_update_memory_access(CirrusVGAState *s);
297
298 /***************************************
299 *
300 * raster operations
301 *
302 ***************************************/
303
304 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
305 uint8_t *dst,const uint8_t *src,
306 int dstpitch,int srcpitch,
307 int bltwidth,int bltheight)
308 {
309 }
310
311 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
312 uint8_t *dst,
313 int dstpitch, int bltwidth,int bltheight)
314 {
315 }
316
317 #define ROP_NAME 0
318 #define ROP_OP(d, s) d = 0
319 #include "cirrus_vga_rop.h"
320
321 #define ROP_NAME src_and_dst
322 #define ROP_OP(d, s) d = (s) & (d)
323 #include "cirrus_vga_rop.h"
324
325 #define ROP_NAME src_and_notdst
326 #define ROP_OP(d, s) d = (s) & (~(d))
327 #include "cirrus_vga_rop.h"
328
329 #define ROP_NAME notdst
330 #define ROP_OP(d, s) d = ~(d)
331 #include "cirrus_vga_rop.h"
332
333 #define ROP_NAME src
334 #define ROP_OP(d, s) d = s
335 #include "cirrus_vga_rop.h"
336
337 #define ROP_NAME 1
338 #define ROP_OP(d, s) d = ~0
339 #include "cirrus_vga_rop.h"
340
341 #define ROP_NAME notsrc_and_dst
342 #define ROP_OP(d, s) d = (~(s)) & (d)
343 #include "cirrus_vga_rop.h"
344
345 #define ROP_NAME src_xor_dst
346 #define ROP_OP(d, s) d = (s) ^ (d)
347 #include "cirrus_vga_rop.h"
348
349 #define ROP_NAME src_or_dst
350 #define ROP_OP(d, s) d = (s) | (d)
351 #include "cirrus_vga_rop.h"
352
353 #define ROP_NAME notsrc_or_notdst
354 #define ROP_OP(d, s) d = (~(s)) | (~(d))
355 #include "cirrus_vga_rop.h"
356
357 #define ROP_NAME src_notxor_dst
358 #define ROP_OP(d, s) d = ~((s) ^ (d))
359 #include "cirrus_vga_rop.h"
360
361 #define ROP_NAME src_or_notdst
362 #define ROP_OP(d, s) d = (s) | (~(d))
363 #include "cirrus_vga_rop.h"
364
365 #define ROP_NAME notsrc
366 #define ROP_OP(d, s) d = (~(s))
367 #include "cirrus_vga_rop.h"
368
369 #define ROP_NAME notsrc_or_dst
370 #define ROP_OP(d, s) d = (~(s)) | (d)
371 #include "cirrus_vga_rop.h"
372
373 #define ROP_NAME notsrc_and_notdst
374 #define ROP_OP(d, s) d = (~(s)) & (~(d))
375 #include "cirrus_vga_rop.h"
376
377 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
378 cirrus_bitblt_rop_fwd_0,
379 cirrus_bitblt_rop_fwd_src_and_dst,
380 cirrus_bitblt_rop_nop,
381 cirrus_bitblt_rop_fwd_src_and_notdst,
382 cirrus_bitblt_rop_fwd_notdst,
383 cirrus_bitblt_rop_fwd_src,
384 cirrus_bitblt_rop_fwd_1,
385 cirrus_bitblt_rop_fwd_notsrc_and_dst,
386 cirrus_bitblt_rop_fwd_src_xor_dst,
387 cirrus_bitblt_rop_fwd_src_or_dst,
388 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
389 cirrus_bitblt_rop_fwd_src_notxor_dst,
390 cirrus_bitblt_rop_fwd_src_or_notdst,
391 cirrus_bitblt_rop_fwd_notsrc,
392 cirrus_bitblt_rop_fwd_notsrc_or_dst,
393 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
394 };
395
396 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
397 cirrus_bitblt_rop_bkwd_0,
398 cirrus_bitblt_rop_bkwd_src_and_dst,
399 cirrus_bitblt_rop_nop,
400 cirrus_bitblt_rop_bkwd_src_and_notdst,
401 cirrus_bitblt_rop_bkwd_notdst,
402 cirrus_bitblt_rop_bkwd_src,
403 cirrus_bitblt_rop_bkwd_1,
404 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
405 cirrus_bitblt_rop_bkwd_src_xor_dst,
406 cirrus_bitblt_rop_bkwd_src_or_dst,
407 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
408 cirrus_bitblt_rop_bkwd_src_notxor_dst,
409 cirrus_bitblt_rop_bkwd_src_or_notdst,
410 cirrus_bitblt_rop_bkwd_notsrc,
411 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
412 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
413 };
414
415 #define TRANSP_ROP(name) {\
416 name ## _8,\
417 name ## _16,\
418 }
419 #define TRANSP_NOP(func) {\
420 func,\
421 func,\
422 }
423
424 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
426 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
427 TRANSP_NOP(cirrus_bitblt_rop_nop),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
432 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
433 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
434 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
435 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
436 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
441 };
442
443 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
445 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
446 TRANSP_NOP(cirrus_bitblt_rop_nop),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
451 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
452 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
453 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
454 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
455 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
460 };
461
462 #define ROP2(name) {\
463 name ## _8,\
464 name ## _16,\
465 name ## _24,\
466 name ## _32,\
467 }
468
469 #define ROP_NOP2(func) {\
470 func,\
471 func,\
472 func,\
473 func,\
474 }
475
476 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
477 ROP2(cirrus_patternfill_0),
478 ROP2(cirrus_patternfill_src_and_dst),
479 ROP_NOP2(cirrus_bitblt_rop_nop),
480 ROP2(cirrus_patternfill_src_and_notdst),
481 ROP2(cirrus_patternfill_notdst),
482 ROP2(cirrus_patternfill_src),
483 ROP2(cirrus_patternfill_1),
484 ROP2(cirrus_patternfill_notsrc_and_dst),
485 ROP2(cirrus_patternfill_src_xor_dst),
486 ROP2(cirrus_patternfill_src_or_dst),
487 ROP2(cirrus_patternfill_notsrc_or_notdst),
488 ROP2(cirrus_patternfill_src_notxor_dst),
489 ROP2(cirrus_patternfill_src_or_notdst),
490 ROP2(cirrus_patternfill_notsrc),
491 ROP2(cirrus_patternfill_notsrc_or_dst),
492 ROP2(cirrus_patternfill_notsrc_and_notdst),
493 };
494
495 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
496 ROP2(cirrus_colorexpand_transp_0),
497 ROP2(cirrus_colorexpand_transp_src_and_dst),
498 ROP_NOP2(cirrus_bitblt_rop_nop),
499 ROP2(cirrus_colorexpand_transp_src_and_notdst),
500 ROP2(cirrus_colorexpand_transp_notdst),
501 ROP2(cirrus_colorexpand_transp_src),
502 ROP2(cirrus_colorexpand_transp_1),
503 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
504 ROP2(cirrus_colorexpand_transp_src_xor_dst),
505 ROP2(cirrus_colorexpand_transp_src_or_dst),
506 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
507 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
508 ROP2(cirrus_colorexpand_transp_src_or_notdst),
509 ROP2(cirrus_colorexpand_transp_notsrc),
510 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
511 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
512 };
513
514 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
515 ROP2(cirrus_colorexpand_0),
516 ROP2(cirrus_colorexpand_src_and_dst),
517 ROP_NOP2(cirrus_bitblt_rop_nop),
518 ROP2(cirrus_colorexpand_src_and_notdst),
519 ROP2(cirrus_colorexpand_notdst),
520 ROP2(cirrus_colorexpand_src),
521 ROP2(cirrus_colorexpand_1),
522 ROP2(cirrus_colorexpand_notsrc_and_dst),
523 ROP2(cirrus_colorexpand_src_xor_dst),
524 ROP2(cirrus_colorexpand_src_or_dst),
525 ROP2(cirrus_colorexpand_notsrc_or_notdst),
526 ROP2(cirrus_colorexpand_src_notxor_dst),
527 ROP2(cirrus_colorexpand_src_or_notdst),
528 ROP2(cirrus_colorexpand_notsrc),
529 ROP2(cirrus_colorexpand_notsrc_or_dst),
530 ROP2(cirrus_colorexpand_notsrc_and_notdst),
531 };
532
533 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
534 ROP2(cirrus_colorexpand_pattern_transp_0),
535 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
536 ROP_NOP2(cirrus_bitblt_rop_nop),
537 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
538 ROP2(cirrus_colorexpand_pattern_transp_notdst),
539 ROP2(cirrus_colorexpand_pattern_transp_src),
540 ROP2(cirrus_colorexpand_pattern_transp_1),
541 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
542 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
543 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
544 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
545 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
546 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
547 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
548 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
549 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
550 };
551
552 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
553 ROP2(cirrus_colorexpand_pattern_0),
554 ROP2(cirrus_colorexpand_pattern_src_and_dst),
555 ROP_NOP2(cirrus_bitblt_rop_nop),
556 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
557 ROP2(cirrus_colorexpand_pattern_notdst),
558 ROP2(cirrus_colorexpand_pattern_src),
559 ROP2(cirrus_colorexpand_pattern_1),
560 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
561 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
562 ROP2(cirrus_colorexpand_pattern_src_or_dst),
563 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
564 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
565 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
566 ROP2(cirrus_colorexpand_pattern_notsrc),
567 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
568 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
569 };
570
571 static const cirrus_fill_t cirrus_fill[16][4] = {
572 ROP2(cirrus_fill_0),
573 ROP2(cirrus_fill_src_and_dst),
574 ROP_NOP2(cirrus_bitblt_fill_nop),
575 ROP2(cirrus_fill_src_and_notdst),
576 ROP2(cirrus_fill_notdst),
577 ROP2(cirrus_fill_src),
578 ROP2(cirrus_fill_1),
579 ROP2(cirrus_fill_notsrc_and_dst),
580 ROP2(cirrus_fill_src_xor_dst),
581 ROP2(cirrus_fill_src_or_dst),
582 ROP2(cirrus_fill_notsrc_or_notdst),
583 ROP2(cirrus_fill_src_notxor_dst),
584 ROP2(cirrus_fill_src_or_notdst),
585 ROP2(cirrus_fill_notsrc),
586 ROP2(cirrus_fill_notsrc_or_dst),
587 ROP2(cirrus_fill_notsrc_and_notdst),
588 };
589
590 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
591 {
592 unsigned int color;
593 switch (s->cirrus_blt_pixelwidth) {
594 case 1:
595 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
596 break;
597 case 2:
598 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
599 s->cirrus_blt_fgcol = le16_to_cpu(color);
600 break;
601 case 3:
602 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
603 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
604 break;
605 default:
606 case 4:
607 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
608 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
609 s->cirrus_blt_fgcol = le32_to_cpu(color);
610 break;
611 }
612 }
613
614 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
615 {
616 unsigned int color;
617 switch (s->cirrus_blt_pixelwidth) {
618 case 1:
619 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
620 break;
621 case 2:
622 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
623 s->cirrus_blt_bgcol = le16_to_cpu(color);
624 break;
625 case 3:
626 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
627 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
628 break;
629 default:
630 case 4:
631 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
632 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
633 s->cirrus_blt_bgcol = le32_to_cpu(color);
634 break;
635 }
636 }
637
638 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
639 int off_pitch, int bytesperline,
640 int lines)
641 {
642 int y;
643 int off_cur;
644 int off_cur_end;
645
646 for (y = 0; y < lines; y++) {
647 off_cur = off_begin;
648 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
649 off_cur &= TARGET_PAGE_MASK;
650 while (off_cur < off_cur_end) {
651 cpu_physical_memory_set_dirty(s->vga.vram_offset + off_cur);
652 off_cur += TARGET_PAGE_SIZE;
653 }
654 off_begin += off_pitch;
655 }
656 }
657
658 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
659 const uint8_t * src)
660 {
661 uint8_t *dst;
662
663 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
664
665 if (BLTUNSAFE(s))
666 return 0;
667
668 (*s->cirrus_rop) (s, dst, src,
669 s->cirrus_blt_dstpitch, 0,
670 s->cirrus_blt_width, s->cirrus_blt_height);
671 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
672 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
673 s->cirrus_blt_height);
674 return 1;
675 }
676
677 /* fill */
678
679 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
680 {
681 cirrus_fill_t rop_func;
682
683 if (BLTUNSAFE(s))
684 return 0;
685 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
686 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
687 s->cirrus_blt_dstpitch,
688 s->cirrus_blt_width, s->cirrus_blt_height);
689 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
690 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
691 s->cirrus_blt_height);
692 cirrus_bitblt_reset(s);
693 return 1;
694 }
695
696 /***************************************
697 *
698 * bitblt (video-to-video)
699 *
700 ***************************************/
701
702 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
703 {
704 return cirrus_bitblt_common_patterncopy(s,
705 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
706 s->cirrus_addr_mask));
707 }
708
709 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
710 {
711 int sx, sy;
712 int dx, dy;
713 int width, height;
714 int depth;
715 int notify = 0;
716
717 depth = s->vga.get_bpp(&s->vga) / 8;
718 s->vga.get_resolution(&s->vga, &width, &height);
719
720 /* extra x, y */
721 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
722 sy = (src / ABS(s->cirrus_blt_srcpitch));
723 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
724 dy = (dst / ABS(s->cirrus_blt_dstpitch));
725
726 /* normalize width */
727 w /= depth;
728
729 /* if we're doing a backward copy, we have to adjust
730 our x/y to be the upper left corner (instead of the lower
731 right corner) */
732 if (s->cirrus_blt_dstpitch < 0) {
733 sx -= (s->cirrus_blt_width / depth) - 1;
734 dx -= (s->cirrus_blt_width / depth) - 1;
735 sy -= s->cirrus_blt_height - 1;
736 dy -= s->cirrus_blt_height - 1;
737 }
738
739 /* are we in the visible portion of memory? */
740 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
741 (sx + w) <= width && (sy + h) <= height &&
742 (dx + w) <= width && (dy + h) <= height) {
743 notify = 1;
744 }
745
746 /* make to sure only copy if it's a plain copy ROP */
747 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
748 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
749 notify = 0;
750
751 /* we have to flush all pending changes so that the copy
752 is generated at the appropriate moment in time */
753 if (notify)
754 vga_hw_update();
755
756 (*s->cirrus_rop) (s, s->vga.vram_ptr +
757 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
758 s->vga.vram_ptr +
759 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
760 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
761 s->cirrus_blt_width, s->cirrus_blt_height);
762
763 if (notify)
764 qemu_console_copy(s->vga.ds,
765 sx, sy, dx, dy,
766 s->cirrus_blt_width / depth,
767 s->cirrus_blt_height);
768
769 /* we don't have to notify the display that this portion has
770 changed since qemu_console_copy implies this */
771
772 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
773 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
774 s->cirrus_blt_height);
775 }
776
777 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
778 {
779 if (BLTUNSAFE(s))
780 return 0;
781
782 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
783 s->cirrus_blt_srcaddr - s->vga.start_addr,
784 s->cirrus_blt_width, s->cirrus_blt_height);
785
786 return 1;
787 }
788
789 /***************************************
790 *
791 * bitblt (cpu-to-video)
792 *
793 ***************************************/
794
795 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
796 {
797 int copy_count;
798 uint8_t *end_ptr;
799
800 if (s->cirrus_srccounter > 0) {
801 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
802 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
803 the_end:
804 s->cirrus_srccounter = 0;
805 cirrus_bitblt_reset(s);
806 } else {
807 /* at least one scan line */
808 do {
809 (*s->cirrus_rop)(s, s->vga.vram_ptr +
810 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
811 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
812 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
813 s->cirrus_blt_width, 1);
814 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
815 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
816 if (s->cirrus_srccounter <= 0)
817 goto the_end;
818 /* more bytes than needed can be transfered because of
819 word alignment, so we keep them for the next line */
820 /* XXX: keep alignment to speed up transfer */
821 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
822 copy_count = s->cirrus_srcptr_end - end_ptr;
823 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
824 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
825 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
826 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
827 }
828 }
829 }
830
831 /***************************************
832 *
833 * bitblt wrapper
834 *
835 ***************************************/
836
837 static void cirrus_bitblt_reset(CirrusVGAState * s)
838 {
839 int need_update;
840
841 s->vga.gr[0x31] &=
842 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
843 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
844 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
845 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
846 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
847 s->cirrus_srccounter = 0;
848 if (!need_update)
849 return;
850 cirrus_update_memory_access(s);
851 }
852
853 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
854 {
855 int w;
856
857 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
858 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
859 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
860
861 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
862 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
863 s->cirrus_blt_srcpitch = 8;
864 } else {
865 /* XXX: check for 24 bpp */
866 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
867 }
868 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
869 } else {
870 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
871 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
872 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
873 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
874 else
875 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
876 } else {
877 /* always align input size to 32 bits */
878 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
879 }
880 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
881 }
882 s->cirrus_srcptr = s->cirrus_bltbuf;
883 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
884 cirrus_update_memory_access(s);
885 return 1;
886 }
887
888 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
889 {
890 /* XXX */
891 #ifdef DEBUG_BITBLT
892 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
893 #endif
894 return 0;
895 }
896
897 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
898 {
899 int ret;
900
901 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
902 ret = cirrus_bitblt_videotovideo_patterncopy(s);
903 } else {
904 ret = cirrus_bitblt_videotovideo_copy(s);
905 }
906 if (ret)
907 cirrus_bitblt_reset(s);
908 return ret;
909 }
910
911 static void cirrus_bitblt_start(CirrusVGAState * s)
912 {
913 uint8_t blt_rop;
914
915 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
916
917 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
918 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
919 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
920 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
921 s->cirrus_blt_dstaddr =
922 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
923 s->cirrus_blt_srcaddr =
924 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
925 s->cirrus_blt_mode = s->vga.gr[0x30];
926 s->cirrus_blt_modeext = s->vga.gr[0x33];
927 blt_rop = s->vga.gr[0x32];
928
929 #ifdef DEBUG_BITBLT
930 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",
931 blt_rop,
932 s->cirrus_blt_mode,
933 s->cirrus_blt_modeext,
934 s->cirrus_blt_width,
935 s->cirrus_blt_height,
936 s->cirrus_blt_dstpitch,
937 s->cirrus_blt_srcpitch,
938 s->cirrus_blt_dstaddr,
939 s->cirrus_blt_srcaddr,
940 s->vga.gr[0x2f]);
941 #endif
942
943 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
944 case CIRRUS_BLTMODE_PIXELWIDTH8:
945 s->cirrus_blt_pixelwidth = 1;
946 break;
947 case CIRRUS_BLTMODE_PIXELWIDTH16:
948 s->cirrus_blt_pixelwidth = 2;
949 break;
950 case CIRRUS_BLTMODE_PIXELWIDTH24:
951 s->cirrus_blt_pixelwidth = 3;
952 break;
953 case CIRRUS_BLTMODE_PIXELWIDTH32:
954 s->cirrus_blt_pixelwidth = 4;
955 break;
956 default:
957 #ifdef DEBUG_BITBLT
958 printf("cirrus: bitblt - pixel width is unknown\n");
959 #endif
960 goto bitblt_ignore;
961 }
962 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
963
964 if ((s->
965 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
966 CIRRUS_BLTMODE_MEMSYSDEST))
967 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
968 #ifdef DEBUG_BITBLT
969 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
970 #endif
971 goto bitblt_ignore;
972 }
973
974 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
975 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
976 CIRRUS_BLTMODE_TRANSPARENTCOMP |
977 CIRRUS_BLTMODE_PATTERNCOPY |
978 CIRRUS_BLTMODE_COLOREXPAND)) ==
979 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
980 cirrus_bitblt_fgcol(s);
981 cirrus_bitblt_solidfill(s, blt_rop);
982 } else {
983 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
984 CIRRUS_BLTMODE_PATTERNCOPY)) ==
985 CIRRUS_BLTMODE_COLOREXPAND) {
986
987 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
988 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
989 cirrus_bitblt_bgcol(s);
990 else
991 cirrus_bitblt_fgcol(s);
992 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
993 } else {
994 cirrus_bitblt_fgcol(s);
995 cirrus_bitblt_bgcol(s);
996 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
997 }
998 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
999 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1000 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1001 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1002 cirrus_bitblt_bgcol(s);
1003 else
1004 cirrus_bitblt_fgcol(s);
1005 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1006 } else {
1007 cirrus_bitblt_fgcol(s);
1008 cirrus_bitblt_bgcol(s);
1009 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1010 }
1011 } else {
1012 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1013 }
1014 } else {
1015 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1016 if (s->cirrus_blt_pixelwidth > 2) {
1017 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1018 goto bitblt_ignore;
1019 }
1020 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1021 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1022 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1023 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1024 } else {
1025 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1026 }
1027 } else {
1028 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1029 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1030 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1031 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1032 } else {
1033 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1034 }
1035 }
1036 }
1037 // setup bitblt engine.
1038 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1039 if (!cirrus_bitblt_cputovideo(s))
1040 goto bitblt_ignore;
1041 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1042 if (!cirrus_bitblt_videotocpu(s))
1043 goto bitblt_ignore;
1044 } else {
1045 if (!cirrus_bitblt_videotovideo(s))
1046 goto bitblt_ignore;
1047 }
1048 }
1049 return;
1050 bitblt_ignore:;
1051 cirrus_bitblt_reset(s);
1052 }
1053
1054 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1055 {
1056 unsigned old_value;
1057
1058 old_value = s->vga.gr[0x31];
1059 s->vga.gr[0x31] = reg_value;
1060
1061 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1062 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1063 cirrus_bitblt_reset(s);
1064 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1065 ((reg_value & CIRRUS_BLT_START) != 0)) {
1066 cirrus_bitblt_start(s);
1067 }
1068 }
1069
1070
1071 /***************************************
1072 *
1073 * basic parameters
1074 *
1075 ***************************************/
1076
1077 static void cirrus_get_offsets(VGACommonState *s1,
1078 uint32_t *pline_offset,
1079 uint32_t *pstart_addr,
1080 uint32_t *pline_compare)
1081 {
1082 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1083 uint32_t start_addr, line_offset, line_compare;
1084
1085 line_offset = s->vga.cr[0x13]
1086 | ((s->vga.cr[0x1b] & 0x10) << 4);
1087 line_offset <<= 3;
1088 *pline_offset = line_offset;
1089
1090 start_addr = (s->vga.cr[0x0c] << 8)
1091 | s->vga.cr[0x0d]
1092 | ((s->vga.cr[0x1b] & 0x01) << 16)
1093 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1094 | ((s->vga.cr[0x1d] & 0x80) << 12);
1095 *pstart_addr = start_addr;
1096
1097 line_compare = s->vga.cr[0x18] |
1098 ((s->vga.cr[0x07] & 0x10) << 4) |
1099 ((s->vga.cr[0x09] & 0x40) << 3);
1100 *pline_compare = line_compare;
1101 }
1102
1103 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1104 {
1105 uint32_t ret = 16;
1106
1107 switch (s->cirrus_hidden_dac_data & 0xf) {
1108 case 0:
1109 ret = 15;
1110 break; /* Sierra HiColor */
1111 case 1:
1112 ret = 16;
1113 break; /* XGA HiColor */
1114 default:
1115 #ifdef DEBUG_CIRRUS
1116 printf("cirrus: invalid DAC value %x in 16bpp\n",
1117 (s->cirrus_hidden_dac_data & 0xf));
1118 #endif
1119 ret = 15; /* XXX */
1120 break;
1121 }
1122 return ret;
1123 }
1124
1125 static int cirrus_get_bpp(VGACommonState *s1)
1126 {
1127 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1128 uint32_t ret = 8;
1129
1130 if ((s->vga.sr[0x07] & 0x01) != 0) {
1131 /* Cirrus SVGA */
1132 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1133 case CIRRUS_SR7_BPP_8:
1134 ret = 8;
1135 break;
1136 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1137 ret = cirrus_get_bpp16_depth(s);
1138 break;
1139 case CIRRUS_SR7_BPP_24:
1140 ret = 24;
1141 break;
1142 case CIRRUS_SR7_BPP_16:
1143 ret = cirrus_get_bpp16_depth(s);
1144 break;
1145 case CIRRUS_SR7_BPP_32:
1146 ret = 32;
1147 break;
1148 default:
1149 #ifdef DEBUG_CIRRUS
1150 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1151 #endif
1152 ret = 8;
1153 break;
1154 }
1155 } else {
1156 /* VGA */
1157 ret = 0;
1158 }
1159
1160 return ret;
1161 }
1162
1163 static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1164 {
1165 int width, height;
1166
1167 width = (s->cr[0x01] + 1) * 8;
1168 height = s->cr[0x12] |
1169 ((s->cr[0x07] & 0x02) << 7) |
1170 ((s->cr[0x07] & 0x40) << 3);
1171 height = (height + 1);
1172 /* interlace support */
1173 if (s->cr[0x1a] & 0x01)
1174 height = height * 2;
1175 *pwidth = width;
1176 *pheight = height;
1177 }
1178
1179 /***************************************
1180 *
1181 * bank memory
1182 *
1183 ***************************************/
1184
1185 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1186 {
1187 unsigned offset;
1188 unsigned limit;
1189
1190 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1191 offset = s->vga.gr[0x09 + bank_index];
1192 else /* single bank */
1193 offset = s->vga.gr[0x09];
1194
1195 if ((s->vga.gr[0x0b] & 0x20) != 0)
1196 offset <<= 14;
1197 else
1198 offset <<= 12;
1199
1200 if (s->real_vram_size <= offset)
1201 limit = 0;
1202 else
1203 limit = s->real_vram_size - offset;
1204
1205 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1206 if (limit > 0x8000) {
1207 offset += 0x8000;
1208 limit -= 0x8000;
1209 } else {
1210 limit = 0;
1211 }
1212 }
1213
1214 if (limit > 0) {
1215 /* Thinking about changing bank base? First, drop the dirty bitmap information
1216 * on the current location, otherwise we lose this pointer forever */
1217 if (s->vga.lfb_vram_mapped) {
1218 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1219 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1220 }
1221 s->cirrus_bank_base[bank_index] = offset;
1222 s->cirrus_bank_limit[bank_index] = limit;
1223 } else {
1224 s->cirrus_bank_base[bank_index] = 0;
1225 s->cirrus_bank_limit[bank_index] = 0;
1226 }
1227 }
1228
1229 /***************************************
1230 *
1231 * I/O access between 0x3c4-0x3c5
1232 *
1233 ***************************************/
1234
1235 static int cirrus_vga_read_sr(CirrusVGAState * s)
1236 {
1237 switch (s->vga.sr_index) {
1238 case 0x00: // Standard VGA
1239 case 0x01: // Standard VGA
1240 case 0x02: // Standard VGA
1241 case 0x03: // Standard VGA
1242 case 0x04: // Standard VGA
1243 return s->vga.sr[s->vga.sr_index];
1244 case 0x06: // Unlock Cirrus extensions
1245 return s->vga.sr[s->vga.sr_index];
1246 case 0x10:
1247 case 0x30:
1248 case 0x50:
1249 case 0x70: // Graphics Cursor X
1250 case 0x90:
1251 case 0xb0:
1252 case 0xd0:
1253 case 0xf0: // Graphics Cursor X
1254 return s->vga.sr[0x10];
1255 case 0x11:
1256 case 0x31:
1257 case 0x51:
1258 case 0x71: // Graphics Cursor Y
1259 case 0x91:
1260 case 0xb1:
1261 case 0xd1:
1262 case 0xf1: // Graphics Cursor Y
1263 return s->vga.sr[0x11];
1264 case 0x05: // ???
1265 case 0x07: // Extended Sequencer Mode
1266 case 0x08: // EEPROM Control
1267 case 0x09: // Scratch Register 0
1268 case 0x0a: // Scratch Register 1
1269 case 0x0b: // VCLK 0
1270 case 0x0c: // VCLK 1
1271 case 0x0d: // VCLK 2
1272 case 0x0e: // VCLK 3
1273 case 0x0f: // DRAM Control
1274 case 0x12: // Graphics Cursor Attribute
1275 case 0x13: // Graphics Cursor Pattern Address
1276 case 0x14: // Scratch Register 2
1277 case 0x15: // Scratch Register 3
1278 case 0x16: // Performance Tuning Register
1279 case 0x17: // Configuration Readback and Extended Control
1280 case 0x18: // Signature Generator Control
1281 case 0x19: // Signal Generator Result
1282 case 0x1a: // Signal Generator Result
1283 case 0x1b: // VCLK 0 Denominator & Post
1284 case 0x1c: // VCLK 1 Denominator & Post
1285 case 0x1d: // VCLK 2 Denominator & Post
1286 case 0x1e: // VCLK 3 Denominator & Post
1287 case 0x1f: // BIOS Write Enable and MCLK select
1288 #ifdef DEBUG_CIRRUS
1289 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1290 #endif
1291 return s->vga.sr[s->vga.sr_index];
1292 default:
1293 #ifdef DEBUG_CIRRUS
1294 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1295 #endif
1296 return 0xff;
1297 break;
1298 }
1299 }
1300
1301 static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1302 {
1303 switch (s->vga.sr_index) {
1304 case 0x00: // Standard VGA
1305 case 0x01: // Standard VGA
1306 case 0x02: // Standard VGA
1307 case 0x03: // Standard VGA
1308 case 0x04: // Standard VGA
1309 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1310 if (s->vga.sr_index == 1)
1311 s->vga.update_retrace_info(&s->vga);
1312 break;
1313 case 0x06: // Unlock Cirrus extensions
1314 val &= 0x17;
1315 if (val == 0x12) {
1316 s->vga.sr[s->vga.sr_index] = 0x12;
1317 } else {
1318 s->vga.sr[s->vga.sr_index] = 0x0f;
1319 }
1320 break;
1321 case 0x10:
1322 case 0x30:
1323 case 0x50:
1324 case 0x70: // Graphics Cursor X
1325 case 0x90:
1326 case 0xb0:
1327 case 0xd0:
1328 case 0xf0: // Graphics Cursor X
1329 s->vga.sr[0x10] = val;
1330 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1331 break;
1332 case 0x11:
1333 case 0x31:
1334 case 0x51:
1335 case 0x71: // Graphics Cursor Y
1336 case 0x91:
1337 case 0xb1:
1338 case 0xd1:
1339 case 0xf1: // Graphics Cursor Y
1340 s->vga.sr[0x11] = val;
1341 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1342 break;
1343 case 0x07: // Extended Sequencer Mode
1344 cirrus_update_memory_access(s);
1345 case 0x08: // EEPROM Control
1346 case 0x09: // Scratch Register 0
1347 case 0x0a: // Scratch Register 1
1348 case 0x0b: // VCLK 0
1349 case 0x0c: // VCLK 1
1350 case 0x0d: // VCLK 2
1351 case 0x0e: // VCLK 3
1352 case 0x0f: // DRAM Control
1353 case 0x12: // Graphics Cursor Attribute
1354 case 0x13: // Graphics Cursor Pattern Address
1355 case 0x14: // Scratch Register 2
1356 case 0x15: // Scratch Register 3
1357 case 0x16: // Performance Tuning Register
1358 case 0x18: // Signature Generator Control
1359 case 0x19: // Signature Generator Result
1360 case 0x1a: // Signature Generator Result
1361 case 0x1b: // VCLK 0 Denominator & Post
1362 case 0x1c: // VCLK 1 Denominator & Post
1363 case 0x1d: // VCLK 2 Denominator & Post
1364 case 0x1e: // VCLK 3 Denominator & Post
1365 case 0x1f: // BIOS Write Enable and MCLK select
1366 s->vga.sr[s->vga.sr_index] = val;
1367 #ifdef DEBUG_CIRRUS
1368 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1369 s->vga.sr_index, val);
1370 #endif
1371 break;
1372 case 0x17: // Configuration Readback and Extended Control
1373 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1374 | (val & 0xc7);
1375 cirrus_update_memory_access(s);
1376 break;
1377 default:
1378 #ifdef DEBUG_CIRRUS
1379 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1380 s->vga.sr_index, val);
1381 #endif
1382 break;
1383 }
1384 }
1385
1386 /***************************************
1387 *
1388 * I/O access at 0x3c6
1389 *
1390 ***************************************/
1391
1392 static int cirrus_read_hidden_dac(CirrusVGAState * s)
1393 {
1394 if (++s->cirrus_hidden_dac_lockindex == 5) {
1395 s->cirrus_hidden_dac_lockindex = 0;
1396 return s->cirrus_hidden_dac_data;
1397 }
1398 return 0xff;
1399 }
1400
1401 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1402 {
1403 if (s->cirrus_hidden_dac_lockindex == 4) {
1404 s->cirrus_hidden_dac_data = reg_value;
1405 #if defined(DEBUG_CIRRUS)
1406 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1407 #endif
1408 }
1409 s->cirrus_hidden_dac_lockindex = 0;
1410 }
1411
1412 /***************************************
1413 *
1414 * I/O access at 0x3c9
1415 *
1416 ***************************************/
1417
1418 static int cirrus_vga_read_palette(CirrusVGAState * s)
1419 {
1420 int val;
1421
1422 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1423 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1424 s->vga.dac_sub_index];
1425 } else {
1426 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1427 }
1428 if (++s->vga.dac_sub_index == 3) {
1429 s->vga.dac_sub_index = 0;
1430 s->vga.dac_read_index++;
1431 }
1432 return val;
1433 }
1434
1435 static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1436 {
1437 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1438 if (++s->vga.dac_sub_index == 3) {
1439 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1440 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1441 s->vga.dac_cache, 3);
1442 } else {
1443 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1444 }
1445 /* XXX update cursor */
1446 s->vga.dac_sub_index = 0;
1447 s->vga.dac_write_index++;
1448 }
1449 }
1450
1451 /***************************************
1452 *
1453 * I/O access between 0x3ce-0x3cf
1454 *
1455 ***************************************/
1456
1457 static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1458 {
1459 switch (reg_index) {
1460 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1461 return s->cirrus_shadow_gr0;
1462 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1463 return s->cirrus_shadow_gr1;
1464 case 0x02: // Standard VGA
1465 case 0x03: // Standard VGA
1466 case 0x04: // Standard VGA
1467 case 0x06: // Standard VGA
1468 case 0x07: // Standard VGA
1469 case 0x08: // Standard VGA
1470 return s->vga.gr[s->vga.gr_index];
1471 case 0x05: // Standard VGA, Cirrus extended mode
1472 default:
1473 break;
1474 }
1475
1476 if (reg_index < 0x3a) {
1477 return s->vga.gr[reg_index];
1478 } else {
1479 #ifdef DEBUG_CIRRUS
1480 printf("cirrus: inport gr_index %02x\n", reg_index);
1481 #endif
1482 return 0xff;
1483 }
1484 }
1485
1486 static void
1487 cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1488 {
1489 #if defined(DEBUG_BITBLT) && 0
1490 printf("gr%02x: %02x\n", reg_index, reg_value);
1491 #endif
1492 switch (reg_index) {
1493 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1494 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1495 s->cirrus_shadow_gr0 = reg_value;
1496 break;
1497 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1498 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1499 s->cirrus_shadow_gr1 = reg_value;
1500 break;
1501 case 0x02: // Standard VGA
1502 case 0x03: // Standard VGA
1503 case 0x04: // Standard VGA
1504 case 0x06: // Standard VGA
1505 case 0x07: // Standard VGA
1506 case 0x08: // Standard VGA
1507 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1508 break;
1509 case 0x05: // Standard VGA, Cirrus extended mode
1510 s->vga.gr[reg_index] = reg_value & 0x7f;
1511 cirrus_update_memory_access(s);
1512 break;
1513 case 0x09: // bank offset #0
1514 case 0x0A: // bank offset #1
1515 s->vga.gr[reg_index] = reg_value;
1516 cirrus_update_bank_ptr(s, 0);
1517 cirrus_update_bank_ptr(s, 1);
1518 cirrus_update_memory_access(s);
1519 break;
1520 case 0x0B:
1521 s->vga.gr[reg_index] = reg_value;
1522 cirrus_update_bank_ptr(s, 0);
1523 cirrus_update_bank_ptr(s, 1);
1524 cirrus_update_memory_access(s);
1525 break;
1526 case 0x10: // BGCOLOR 0x0000ff00
1527 case 0x11: // FGCOLOR 0x0000ff00
1528 case 0x12: // BGCOLOR 0x00ff0000
1529 case 0x13: // FGCOLOR 0x00ff0000
1530 case 0x14: // BGCOLOR 0xff000000
1531 case 0x15: // FGCOLOR 0xff000000
1532 case 0x20: // BLT WIDTH 0x0000ff
1533 case 0x22: // BLT HEIGHT 0x0000ff
1534 case 0x24: // BLT DEST PITCH 0x0000ff
1535 case 0x26: // BLT SRC PITCH 0x0000ff
1536 case 0x28: // BLT DEST ADDR 0x0000ff
1537 case 0x29: // BLT DEST ADDR 0x00ff00
1538 case 0x2c: // BLT SRC ADDR 0x0000ff
1539 case 0x2d: // BLT SRC ADDR 0x00ff00
1540 case 0x2f: // BLT WRITEMASK
1541 case 0x30: // BLT MODE
1542 case 0x32: // RASTER OP
1543 case 0x33: // BLT MODEEXT
1544 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1545 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1546 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1547 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1548 s->vga.gr[reg_index] = reg_value;
1549 break;
1550 case 0x21: // BLT WIDTH 0x001f00
1551 case 0x23: // BLT HEIGHT 0x001f00
1552 case 0x25: // BLT DEST PITCH 0x001f00
1553 case 0x27: // BLT SRC PITCH 0x001f00
1554 s->vga.gr[reg_index] = reg_value & 0x1f;
1555 break;
1556 case 0x2a: // BLT DEST ADDR 0x3f0000
1557 s->vga.gr[reg_index] = reg_value & 0x3f;
1558 /* if auto start mode, starts bit blt now */
1559 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1560 cirrus_bitblt_start(s);
1561 }
1562 break;
1563 case 0x2e: // BLT SRC ADDR 0x3f0000
1564 s->vga.gr[reg_index] = reg_value & 0x3f;
1565 break;
1566 case 0x31: // BLT STATUS/START
1567 cirrus_write_bitblt(s, reg_value);
1568 break;
1569 default:
1570 #ifdef DEBUG_CIRRUS
1571 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1572 reg_value);
1573 #endif
1574 break;
1575 }
1576 }
1577
1578 /***************************************
1579 *
1580 * I/O access between 0x3d4-0x3d5
1581 *
1582 ***************************************/
1583
1584 static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1585 {
1586 switch (reg_index) {
1587 case 0x00: // Standard VGA
1588 case 0x01: // Standard VGA
1589 case 0x02: // Standard VGA
1590 case 0x03: // Standard VGA
1591 case 0x04: // Standard VGA
1592 case 0x05: // Standard VGA
1593 case 0x06: // Standard VGA
1594 case 0x07: // Standard VGA
1595 case 0x08: // Standard VGA
1596 case 0x09: // Standard VGA
1597 case 0x0a: // Standard VGA
1598 case 0x0b: // Standard VGA
1599 case 0x0c: // Standard VGA
1600 case 0x0d: // Standard VGA
1601 case 0x0e: // Standard VGA
1602 case 0x0f: // Standard VGA
1603 case 0x10: // Standard VGA
1604 case 0x11: // Standard VGA
1605 case 0x12: // Standard VGA
1606 case 0x13: // Standard VGA
1607 case 0x14: // Standard VGA
1608 case 0x15: // Standard VGA
1609 case 0x16: // Standard VGA
1610 case 0x17: // Standard VGA
1611 case 0x18: // Standard VGA
1612 return s->vga.cr[s->vga.cr_index];
1613 case 0x24: // Attribute Controller Toggle Readback (R)
1614 return (s->vga.ar_flip_flop << 7);
1615 case 0x19: // Interlace End
1616 case 0x1a: // Miscellaneous Control
1617 case 0x1b: // Extended Display Control
1618 case 0x1c: // Sync Adjust and Genlock
1619 case 0x1d: // Overlay Extended Control
1620 case 0x22: // Graphics Data Latches Readback (R)
1621 case 0x25: // Part Status
1622 case 0x27: // Part ID (R)
1623 return s->vga.cr[s->vga.cr_index];
1624 case 0x26: // Attribute Controller Index Readback (R)
1625 return s->vga.ar_index & 0x3f;
1626 break;
1627 default:
1628 #ifdef DEBUG_CIRRUS
1629 printf("cirrus: inport cr_index %02x\n", reg_index);
1630 #endif
1631 return 0xff;
1632 }
1633 }
1634
1635 static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1636 {
1637 switch (s->vga.cr_index) {
1638 case 0x00: // Standard VGA
1639 case 0x01: // Standard VGA
1640 case 0x02: // Standard VGA
1641 case 0x03: // Standard VGA
1642 case 0x04: // Standard VGA
1643 case 0x05: // Standard VGA
1644 case 0x06: // Standard VGA
1645 case 0x07: // Standard VGA
1646 case 0x08: // Standard VGA
1647 case 0x09: // Standard VGA
1648 case 0x0a: // Standard VGA
1649 case 0x0b: // Standard VGA
1650 case 0x0c: // Standard VGA
1651 case 0x0d: // Standard VGA
1652 case 0x0e: // Standard VGA
1653 case 0x0f: // Standard VGA
1654 case 0x10: // Standard VGA
1655 case 0x11: // Standard VGA
1656 case 0x12: // Standard VGA
1657 case 0x13: // Standard VGA
1658 case 0x14: // Standard VGA
1659 case 0x15: // Standard VGA
1660 case 0x16: // Standard VGA
1661 case 0x17: // Standard VGA
1662 case 0x18: // Standard VGA
1663 /* handle CR0-7 protection */
1664 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1665 /* can always write bit 4 of CR7 */
1666 if (s->vga.cr_index == 7)
1667 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1668 return;
1669 }
1670 s->vga.cr[s->vga.cr_index] = reg_value;
1671 switch(s->vga.cr_index) {
1672 case 0x00:
1673 case 0x04:
1674 case 0x05:
1675 case 0x06:
1676 case 0x07:
1677 case 0x11:
1678 case 0x17:
1679 s->vga.update_retrace_info(&s->vga);
1680 break;
1681 }
1682 break;
1683 case 0x19: // Interlace End
1684 case 0x1a: // Miscellaneous Control
1685 case 0x1b: // Extended Display Control
1686 case 0x1c: // Sync Adjust and Genlock
1687 case 0x1d: // Overlay Extended Control
1688 s->vga.cr[s->vga.cr_index] = reg_value;
1689 #ifdef DEBUG_CIRRUS
1690 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1691 s->vga.cr_index, reg_value);
1692 #endif
1693 break;
1694 case 0x22: // Graphics Data Latches Readback (R)
1695 case 0x24: // Attribute Controller Toggle Readback (R)
1696 case 0x26: // Attribute Controller Index Readback (R)
1697 case 0x27: // Part ID (R)
1698 break;
1699 case 0x25: // Part Status
1700 default:
1701 #ifdef DEBUG_CIRRUS
1702 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1703 s->vga.cr_index, reg_value);
1704 #endif
1705 break;
1706 }
1707 }
1708
1709 /***************************************
1710 *
1711 * memory-mapped I/O (bitblt)
1712 *
1713 ***************************************/
1714
1715 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1716 {
1717 int value = 0xff;
1718
1719 switch (address) {
1720 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1721 value = cirrus_vga_read_gr(s, 0x00);
1722 break;
1723 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1724 value = cirrus_vga_read_gr(s, 0x10);
1725 break;
1726 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1727 value = cirrus_vga_read_gr(s, 0x12);
1728 break;
1729 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1730 value = cirrus_vga_read_gr(s, 0x14);
1731 break;
1732 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1733 value = cirrus_vga_read_gr(s, 0x01);
1734 break;
1735 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1736 value = cirrus_vga_read_gr(s, 0x11);
1737 break;
1738 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1739 value = cirrus_vga_read_gr(s, 0x13);
1740 break;
1741 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1742 value = cirrus_vga_read_gr(s, 0x15);
1743 break;
1744 case (CIRRUS_MMIO_BLTWIDTH + 0):
1745 value = cirrus_vga_read_gr(s, 0x20);
1746 break;
1747 case (CIRRUS_MMIO_BLTWIDTH + 1):
1748 value = cirrus_vga_read_gr(s, 0x21);
1749 break;
1750 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1751 value = cirrus_vga_read_gr(s, 0x22);
1752 break;
1753 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1754 value = cirrus_vga_read_gr(s, 0x23);
1755 break;
1756 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1757 value = cirrus_vga_read_gr(s, 0x24);
1758 break;
1759 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1760 value = cirrus_vga_read_gr(s, 0x25);
1761 break;
1762 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1763 value = cirrus_vga_read_gr(s, 0x26);
1764 break;
1765 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1766 value = cirrus_vga_read_gr(s, 0x27);
1767 break;
1768 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1769 value = cirrus_vga_read_gr(s, 0x28);
1770 break;
1771 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1772 value = cirrus_vga_read_gr(s, 0x29);
1773 break;
1774 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1775 value = cirrus_vga_read_gr(s, 0x2a);
1776 break;
1777 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1778 value = cirrus_vga_read_gr(s, 0x2c);
1779 break;
1780 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1781 value = cirrus_vga_read_gr(s, 0x2d);
1782 break;
1783 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1784 value = cirrus_vga_read_gr(s, 0x2e);
1785 break;
1786 case CIRRUS_MMIO_BLTWRITEMASK:
1787 value = cirrus_vga_read_gr(s, 0x2f);
1788 break;
1789 case CIRRUS_MMIO_BLTMODE:
1790 value = cirrus_vga_read_gr(s, 0x30);
1791 break;
1792 case CIRRUS_MMIO_BLTROP:
1793 value = cirrus_vga_read_gr(s, 0x32);
1794 break;
1795 case CIRRUS_MMIO_BLTMODEEXT:
1796 value = cirrus_vga_read_gr(s, 0x33);
1797 break;
1798 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1799 value = cirrus_vga_read_gr(s, 0x34);
1800 break;
1801 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1802 value = cirrus_vga_read_gr(s, 0x35);
1803 break;
1804 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1805 value = cirrus_vga_read_gr(s, 0x38);
1806 break;
1807 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1808 value = cirrus_vga_read_gr(s, 0x39);
1809 break;
1810 case CIRRUS_MMIO_BLTSTATUS:
1811 value = cirrus_vga_read_gr(s, 0x31);
1812 break;
1813 default:
1814 #ifdef DEBUG_CIRRUS
1815 printf("cirrus: mmio read - address 0x%04x\n", address);
1816 #endif
1817 break;
1818 }
1819
1820 return (uint8_t) value;
1821 }
1822
1823 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1824 uint8_t value)
1825 {
1826 switch (address) {
1827 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1828 cirrus_vga_write_gr(s, 0x00, value);
1829 break;
1830 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1831 cirrus_vga_write_gr(s, 0x10, value);
1832 break;
1833 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1834 cirrus_vga_write_gr(s, 0x12, value);
1835 break;
1836 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1837 cirrus_vga_write_gr(s, 0x14, value);
1838 break;
1839 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1840 cirrus_vga_write_gr(s, 0x01, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1843 cirrus_vga_write_gr(s, 0x11, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1846 cirrus_vga_write_gr(s, 0x13, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1849 cirrus_vga_write_gr(s, 0x15, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTWIDTH + 0):
1852 cirrus_vga_write_gr(s, 0x20, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTWIDTH + 1):
1855 cirrus_vga_write_gr(s, 0x21, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1858 cirrus_vga_write_gr(s, 0x22, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1861 cirrus_vga_write_gr(s, 0x23, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1864 cirrus_vga_write_gr(s, 0x24, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1867 cirrus_vga_write_gr(s, 0x25, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1870 cirrus_vga_write_gr(s, 0x26, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1873 cirrus_vga_write_gr(s, 0x27, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1876 cirrus_vga_write_gr(s, 0x28, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1879 cirrus_vga_write_gr(s, 0x29, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1882 cirrus_vga_write_gr(s, 0x2a, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1885 /* ignored */
1886 break;
1887 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1888 cirrus_vga_write_gr(s, 0x2c, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1891 cirrus_vga_write_gr(s, 0x2d, value);
1892 break;
1893 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1894 cirrus_vga_write_gr(s, 0x2e, value);
1895 break;
1896 case CIRRUS_MMIO_BLTWRITEMASK:
1897 cirrus_vga_write_gr(s, 0x2f, value);
1898 break;
1899 case CIRRUS_MMIO_BLTMODE:
1900 cirrus_vga_write_gr(s, 0x30, value);
1901 break;
1902 case CIRRUS_MMIO_BLTROP:
1903 cirrus_vga_write_gr(s, 0x32, value);
1904 break;
1905 case CIRRUS_MMIO_BLTMODEEXT:
1906 cirrus_vga_write_gr(s, 0x33, value);
1907 break;
1908 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1909 cirrus_vga_write_gr(s, 0x34, value);
1910 break;
1911 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1912 cirrus_vga_write_gr(s, 0x35, value);
1913 break;
1914 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1915 cirrus_vga_write_gr(s, 0x38, value);
1916 break;
1917 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1918 cirrus_vga_write_gr(s, 0x39, value);
1919 break;
1920 case CIRRUS_MMIO_BLTSTATUS:
1921 cirrus_vga_write_gr(s, 0x31, value);
1922 break;
1923 default:
1924 #ifdef DEBUG_CIRRUS
1925 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1926 address, value);
1927 #endif
1928 break;
1929 }
1930 }
1931
1932 /***************************************
1933 *
1934 * write mode 4/5
1935 *
1936 * assume TARGET_PAGE_SIZE >= 16
1937 *
1938 ***************************************/
1939
1940 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1941 unsigned mode,
1942 unsigned offset,
1943 uint32_t mem_value)
1944 {
1945 int x;
1946 unsigned val = mem_value;
1947 uint8_t *dst;
1948
1949 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1950 for (x = 0; x < 8; x++) {
1951 if (val & 0x80) {
1952 *dst = s->cirrus_shadow_gr1;
1953 } else if (mode == 5) {
1954 *dst = s->cirrus_shadow_gr0;
1955 }
1956 val <<= 1;
1957 dst++;
1958 }
1959 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1960 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 7);
1961 }
1962
1963 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1964 unsigned mode,
1965 unsigned offset,
1966 uint32_t mem_value)
1967 {
1968 int x;
1969 unsigned val = mem_value;
1970 uint8_t *dst;
1971
1972 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1973 for (x = 0; x < 8; x++) {
1974 if (val & 0x80) {
1975 *dst = s->cirrus_shadow_gr1;
1976 *(dst + 1) = s->vga.gr[0x11];
1977 } else if (mode == 5) {
1978 *dst = s->cirrus_shadow_gr0;
1979 *(dst + 1) = s->vga.gr[0x10];
1980 }
1981 val <<= 1;
1982 dst += 2;
1983 }
1984 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1985 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 15);
1986 }
1987
1988 /***************************************
1989 *
1990 * memory access between 0xa0000-0xbffff
1991 *
1992 ***************************************/
1993
1994 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1995 {
1996 CirrusVGAState *s = opaque;
1997 unsigned bank_index;
1998 unsigned bank_offset;
1999 uint32_t val;
2000
2001 if ((s->vga.sr[0x07] & 0x01) == 0) {
2002 return vga_mem_readb(s, addr);
2003 }
2004
2005 addr &= 0x1ffff;
2006
2007 if (addr < 0x10000) {
2008 /* XXX handle bitblt */
2009 /* video memory */
2010 bank_index = addr >> 15;
2011 bank_offset = addr & 0x7fff;
2012 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2013 bank_offset += s->cirrus_bank_base[bank_index];
2014 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2015 bank_offset <<= 4;
2016 } else if (s->vga.gr[0x0B] & 0x02) {
2017 bank_offset <<= 3;
2018 }
2019 bank_offset &= s->cirrus_addr_mask;
2020 val = *(s->vga.vram_ptr + bank_offset);
2021 } else
2022 val = 0xff;
2023 } else if (addr >= 0x18000 && addr < 0x18100) {
2024 /* memory-mapped I/O */
2025 val = 0xff;
2026 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2027 val = cirrus_mmio_blt_read(s, addr & 0xff);
2028 }
2029 } else {
2030 val = 0xff;
2031 #ifdef DEBUG_CIRRUS
2032 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2033 #endif
2034 }
2035 return val;
2036 }
2037
2038 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2039 {
2040 uint32_t v;
2041 #ifdef TARGET_WORDS_BIGENDIAN
2042 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2043 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2044 #else
2045 v = cirrus_vga_mem_readb(opaque, addr);
2046 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2047 #endif
2048 return v;
2049 }
2050
2051 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2052 {
2053 uint32_t v;
2054 #ifdef TARGET_WORDS_BIGENDIAN
2055 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2056 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2057 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2058 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2059 #else
2060 v = cirrus_vga_mem_readb(opaque, addr);
2061 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2062 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2063 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2064 #endif
2065 return v;
2066 }
2067
2068 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2069 uint32_t mem_value)
2070 {
2071 CirrusVGAState *s = opaque;
2072 unsigned bank_index;
2073 unsigned bank_offset;
2074 unsigned mode;
2075
2076 if ((s->vga.sr[0x07] & 0x01) == 0) {
2077 vga_mem_writeb(s, addr, mem_value);
2078 return;
2079 }
2080
2081 addr &= 0x1ffff;
2082
2083 if (addr < 0x10000) {
2084 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2085 /* bitblt */
2086 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2087 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2088 cirrus_bitblt_cputovideo_next(s);
2089 }
2090 } else {
2091 /* video memory */
2092 bank_index = addr >> 15;
2093 bank_offset = addr & 0x7fff;
2094 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2095 bank_offset += s->cirrus_bank_base[bank_index];
2096 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2097 bank_offset <<= 4;
2098 } else if (s->vga.gr[0x0B] & 0x02) {
2099 bank_offset <<= 3;
2100 }
2101 bank_offset &= s->cirrus_addr_mask;
2102 mode = s->vga.gr[0x05] & 0x7;
2103 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2104 *(s->vga.vram_ptr + bank_offset) = mem_value;
2105 cpu_physical_memory_set_dirty(s->vga.vram_offset +
2106 bank_offset);
2107 } else {
2108 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2109 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2110 bank_offset,
2111 mem_value);
2112 } else {
2113 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2114 bank_offset,
2115 mem_value);
2116 }
2117 }
2118 }
2119 }
2120 } else if (addr >= 0x18000 && addr < 0x18100) {
2121 /* memory-mapped I/O */
2122 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2123 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2124 }
2125 } else {
2126 #ifdef DEBUG_CIRRUS
2127 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2128 mem_value);
2129 #endif
2130 }
2131 }
2132
2133 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2134 {
2135 #ifdef TARGET_WORDS_BIGENDIAN
2136 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2137 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2138 #else
2139 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2140 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2141 #endif
2142 }
2143
2144 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2145 {
2146 #ifdef TARGET_WORDS_BIGENDIAN
2147 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2148 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2149 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2150 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2151 #else
2152 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2153 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2154 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2155 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2156 #endif
2157 }
2158
2159 static CPUReadMemoryFunc * const cirrus_vga_mem_read[3] = {
2160 cirrus_vga_mem_readb,
2161 cirrus_vga_mem_readw,
2162 cirrus_vga_mem_readl,
2163 };
2164
2165 static CPUWriteMemoryFunc * const cirrus_vga_mem_write[3] = {
2166 cirrus_vga_mem_writeb,
2167 cirrus_vga_mem_writew,
2168 cirrus_vga_mem_writel,
2169 };
2170
2171 /***************************************
2172 *
2173 * hardware cursor
2174 *
2175 ***************************************/
2176
2177 static inline void invalidate_cursor1(CirrusVGAState *s)
2178 {
2179 if (s->last_hw_cursor_size) {
2180 vga_invalidate_scanlines(&s->vga,
2181 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2182 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2183 }
2184 }
2185
2186 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2187 {
2188 const uint8_t *src;
2189 uint32_t content;
2190 int y, y_min, y_max;
2191
2192 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2193 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2194 src += (s->vga.sr[0x13] & 0x3c) * 256;
2195 y_min = 64;
2196 y_max = -1;
2197 for(y = 0; y < 64; y++) {
2198 content = ((uint32_t *)src)[0] |
2199 ((uint32_t *)src)[1] |
2200 ((uint32_t *)src)[2] |
2201 ((uint32_t *)src)[3];
2202 if (content) {
2203 if (y < y_min)
2204 y_min = y;
2205 if (y > y_max)
2206 y_max = y;
2207 }
2208 src += 16;
2209 }
2210 } else {
2211 src += (s->vga.sr[0x13] & 0x3f) * 256;
2212 y_min = 32;
2213 y_max = -1;
2214 for(y = 0; y < 32; y++) {
2215 content = ((uint32_t *)src)[0] |
2216 ((uint32_t *)(src + 128))[0];
2217 if (content) {
2218 if (y < y_min)
2219 y_min = y;
2220 if (y > y_max)
2221 y_max = y;
2222 }
2223 src += 4;
2224 }
2225 }
2226 if (y_min > y_max) {
2227 s->last_hw_cursor_y_start = 0;
2228 s->last_hw_cursor_y_end = 0;
2229 } else {
2230 s->last_hw_cursor_y_start = y_min;
2231 s->last_hw_cursor_y_end = y_max + 1;
2232 }
2233 }
2234
2235 /* NOTE: we do not currently handle the cursor bitmap change, so we
2236 update the cursor only if it moves. */
2237 static void cirrus_cursor_invalidate(VGACommonState *s1)
2238 {
2239 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2240 int size;
2241
2242 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2243 size = 0;
2244 } else {
2245 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2246 size = 64;
2247 else
2248 size = 32;
2249 }
2250 /* invalidate last cursor and new cursor if any change */
2251 if (s->last_hw_cursor_size != size ||
2252 s->last_hw_cursor_x != s->hw_cursor_x ||
2253 s->last_hw_cursor_y != s->hw_cursor_y) {
2254
2255 invalidate_cursor1(s);
2256
2257 s->last_hw_cursor_size = size;
2258 s->last_hw_cursor_x = s->hw_cursor_x;
2259 s->last_hw_cursor_y = s->hw_cursor_y;
2260 /* compute the real cursor min and max y */
2261 cirrus_cursor_compute_yrange(s);
2262 invalidate_cursor1(s);
2263 }
2264 }
2265
2266 static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2267 {
2268 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2269 int w, h, bpp, x1, x2, poffset;
2270 unsigned int color0, color1;
2271 const uint8_t *palette, *src;
2272 uint32_t content;
2273
2274 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2275 return;
2276 /* fast test to see if the cursor intersects with the scan line */
2277 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2278 h = 64;
2279 } else {
2280 h = 32;
2281 }
2282 if (scr_y < s->hw_cursor_y ||
2283 scr_y >= (s->hw_cursor_y + h))
2284 return;
2285
2286 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2287 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2288 src += (s->vga.sr[0x13] & 0x3c) * 256;
2289 src += (scr_y - s->hw_cursor_y) * 16;
2290 poffset = 8;
2291 content = ((uint32_t *)src)[0] |
2292 ((uint32_t *)src)[1] |
2293 ((uint32_t *)src)[2] |
2294 ((uint32_t *)src)[3];
2295 } else {
2296 src += (s->vga.sr[0x13] & 0x3f) * 256;
2297 src += (scr_y - s->hw_cursor_y) * 4;
2298 poffset = 128;
2299 content = ((uint32_t *)src)[0] |
2300 ((uint32_t *)(src + 128))[0];
2301 }
2302 /* if nothing to draw, no need to continue */
2303 if (!content)
2304 return;
2305 w = h;
2306
2307 x1 = s->hw_cursor_x;
2308 if (x1 >= s->vga.last_scr_width)
2309 return;
2310 x2 = s->hw_cursor_x + w;
2311 if (x2 > s->vga.last_scr_width)
2312 x2 = s->vga.last_scr_width;
2313 w = x2 - x1;
2314 palette = s->cirrus_hidden_palette;
2315 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2316 c6_to_8(palette[0x0 * 3 + 1]),
2317 c6_to_8(palette[0x0 * 3 + 2]));
2318 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2319 c6_to_8(palette[0xf * 3 + 1]),
2320 c6_to_8(palette[0xf * 3 + 2]));
2321 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2322 d1 += x1 * bpp;
2323 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2324 default:
2325 break;
2326 case 8:
2327 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2328 break;
2329 case 15:
2330 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2331 break;
2332 case 16:
2333 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2334 break;
2335 case 32:
2336 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2337 break;
2338 }
2339 }
2340
2341 /***************************************
2342 *
2343 * LFB memory access
2344 *
2345 ***************************************/
2346
2347 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2348 {
2349 CirrusVGAState *s = opaque;
2350 uint32_t ret;
2351
2352 addr &= s->cirrus_addr_mask;
2353
2354 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2355 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2356 /* memory-mapped I/O */
2357 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2358 } else if (0) {
2359 /* XXX handle bitblt */
2360 ret = 0xff;
2361 } else {
2362 /* video memory */
2363 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2364 addr <<= 4;
2365 } else if (s->vga.gr[0x0B] & 0x02) {
2366 addr <<= 3;
2367 }
2368 addr &= s->cirrus_addr_mask;
2369 ret = *(s->vga.vram_ptr + addr);
2370 }
2371
2372 return ret;
2373 }
2374
2375 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2376 {
2377 uint32_t v;
2378 #ifdef TARGET_WORDS_BIGENDIAN
2379 v = cirrus_linear_readb(opaque, addr) << 8;
2380 v |= cirrus_linear_readb(opaque, addr + 1);
2381 #else
2382 v = cirrus_linear_readb(opaque, addr);
2383 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2384 #endif
2385 return v;
2386 }
2387
2388 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2389 {
2390 uint32_t v;
2391 #ifdef TARGET_WORDS_BIGENDIAN
2392 v = cirrus_linear_readb(opaque, addr) << 24;
2393 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2394 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2395 v |= cirrus_linear_readb(opaque, addr + 3);
2396 #else
2397 v = cirrus_linear_readb(opaque, addr);
2398 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2399 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2400 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2401 #endif
2402 return v;
2403 }
2404
2405 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2406 uint32_t val)
2407 {
2408 CirrusVGAState *s = opaque;
2409 unsigned mode;
2410
2411 addr &= s->cirrus_addr_mask;
2412
2413 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2414 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2415 /* memory-mapped I/O */
2416 cirrus_mmio_blt_write(s, addr & 0xff, val);
2417 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2418 /* bitblt */
2419 *s->cirrus_srcptr++ = (uint8_t) val;
2420 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2421 cirrus_bitblt_cputovideo_next(s);
2422 }
2423 } else {
2424 /* video memory */
2425 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2426 addr <<= 4;
2427 } else if (s->vga.gr[0x0B] & 0x02) {
2428 addr <<= 3;
2429 }
2430 addr &= s->cirrus_addr_mask;
2431
2432 mode = s->vga.gr[0x05] & 0x7;
2433 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2434 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2435 cpu_physical_memory_set_dirty(s->vga.vram_offset + addr);
2436 } else {
2437 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2438 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2439 } else {
2440 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2441 }
2442 }
2443 }
2444 }
2445
2446 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2447 uint32_t val)
2448 {
2449 #ifdef TARGET_WORDS_BIGENDIAN
2450 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2451 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2452 #else
2453 cirrus_linear_writeb(opaque, addr, val & 0xff);
2454 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2455 #endif
2456 }
2457
2458 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2459 uint32_t val)
2460 {
2461 #ifdef TARGET_WORDS_BIGENDIAN
2462 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2463 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2464 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2465 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2466 #else
2467 cirrus_linear_writeb(opaque, addr, val & 0xff);
2468 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2469 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2470 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2471 #endif
2472 }
2473
2474
2475 static CPUReadMemoryFunc * const cirrus_linear_read[3] = {
2476 cirrus_linear_readb,
2477 cirrus_linear_readw,
2478 cirrus_linear_readl,
2479 };
2480
2481 static CPUWriteMemoryFunc * const cirrus_linear_write[3] = {
2482 cirrus_linear_writeb,
2483 cirrus_linear_writew,
2484 cirrus_linear_writel,
2485 };
2486
2487 /***************************************
2488 *
2489 * system to screen memory access
2490 *
2491 ***************************************/
2492
2493
2494 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2495 {
2496 uint32_t ret;
2497
2498 /* XXX handle bitblt */
2499 ret = 0xff;
2500 return ret;
2501 }
2502
2503 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2504 {
2505 uint32_t v;
2506 #ifdef TARGET_WORDS_BIGENDIAN
2507 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2508 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2509 #else
2510 v = cirrus_linear_bitblt_readb(opaque, addr);
2511 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2512 #endif
2513 return v;
2514 }
2515
2516 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2517 {
2518 uint32_t v;
2519 #ifdef TARGET_WORDS_BIGENDIAN
2520 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2521 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2522 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2523 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2524 #else
2525 v = cirrus_linear_bitblt_readb(opaque, addr);
2526 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2527 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2528 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2529 #endif
2530 return v;
2531 }
2532
2533 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2534 uint32_t val)
2535 {
2536 CirrusVGAState *s = opaque;
2537
2538 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2539 /* bitblt */
2540 *s->cirrus_srcptr++ = (uint8_t) val;
2541 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2542 cirrus_bitblt_cputovideo_next(s);
2543 }
2544 }
2545 }
2546
2547 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2548 uint32_t val)
2549 {
2550 #ifdef TARGET_WORDS_BIGENDIAN
2551 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2552 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2553 #else
2554 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2555 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2556 #endif
2557 }
2558
2559 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2560 uint32_t val)
2561 {
2562 #ifdef TARGET_WORDS_BIGENDIAN
2563 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2564 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2565 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2566 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2567 #else
2568 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2569 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2570 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2571 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2572 #endif
2573 }
2574
2575
2576 static CPUReadMemoryFunc * const cirrus_linear_bitblt_read[3] = {
2577 cirrus_linear_bitblt_readb,
2578 cirrus_linear_bitblt_readw,
2579 cirrus_linear_bitblt_readl,
2580 };
2581
2582 static CPUWriteMemoryFunc * const cirrus_linear_bitblt_write[3] = {
2583 cirrus_linear_bitblt_writeb,
2584 cirrus_linear_bitblt_writew,
2585 cirrus_linear_bitblt_writel,
2586 };
2587
2588 static void map_linear_vram(CirrusVGAState *s)
2589 {
2590 if (!s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
2591 s->vga.map_addr = s->vga.lfb_addr;
2592 s->vga.map_end = s->vga.lfb_end;
2593 cpu_register_physical_memory(s->vga.map_addr, s->vga.map_end - s->vga.map_addr, s->vga.vram_offset);
2594 }
2595
2596 if (!s->vga.map_addr)
2597 return;
2598
2599 s->vga.lfb_vram_mapped = 0;
2600
2601 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2602 && !((s->vga.sr[0x07] & 0x01) == 0)
2603 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2604 && !(s->vga.gr[0x0B] & 0x02)) {
2605
2606 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2607 (s->vga.vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2608 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2609 (s->vga.vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2610
2611 s->vga.lfb_vram_mapped = 1;
2612 }
2613 else {
2614 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2615 s->vga.vga_io_memory);
2616 }
2617
2618 vga_dirty_log_start(&s->vga);
2619 }
2620
2621 static void unmap_linear_vram(CirrusVGAState *s)
2622 {
2623 if (s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end)
2624 s->vga.map_addr = s->vga.map_end = 0;
2625
2626 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2627 s->vga.vga_io_memory);
2628 }
2629
2630 /* Compute the memory access functions */
2631 static void cirrus_update_memory_access(CirrusVGAState *s)
2632 {
2633 unsigned mode;
2634
2635 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2636 goto generic_io;
2637 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2638 goto generic_io;
2639 } else {
2640 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2641 goto generic_io;
2642 } else if (s->vga.gr[0x0B] & 0x02) {
2643 goto generic_io;
2644 }
2645
2646 mode = s->vga.gr[0x05] & 0x7;
2647 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2648 map_linear_vram(s);
2649 } else {
2650 generic_io:
2651 unmap_linear_vram(s);
2652 }
2653 }
2654 }
2655
2656
2657 /* I/O ports */
2658
2659 static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
2660 {
2661 CirrusVGAState *c = opaque;
2662 VGACommonState *s = &c->vga;
2663 int val, index;
2664
2665 if (vga_ioport_invalid(s, addr)) {
2666 val = 0xff;
2667 } else {
2668 switch (addr) {
2669 case 0x3c0:
2670 if (s->ar_flip_flop == 0) {
2671 val = s->ar_index;
2672 } else {
2673 val = 0;
2674 }
2675 break;
2676 case 0x3c1:
2677 index = s->ar_index & 0x1f;
2678 if (index < 21)
2679 val = s->ar[index];
2680 else
2681 val = 0;
2682 break;
2683 case 0x3c2:
2684 val = s->st00;
2685 break;
2686 case 0x3c4:
2687 val = s->sr_index;
2688 break;
2689 case 0x3c5:
2690 val = cirrus_vga_read_sr(c);
2691 break;
2692 #ifdef DEBUG_VGA_REG
2693 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2694 #endif
2695 break;
2696 case 0x3c6:
2697 val = cirrus_read_hidden_dac(c);
2698 break;
2699 case 0x3c7:
2700 val = s->dac_state;
2701 break;
2702 case 0x3c8:
2703 val = s->dac_write_index;
2704 c->cirrus_hidden_dac_lockindex = 0;
2705 break;
2706 case 0x3c9:
2707 val = cirrus_vga_read_palette(c);
2708 break;
2709 case 0x3ca:
2710 val = s->fcr;
2711 break;
2712 case 0x3cc:
2713 val = s->msr;
2714 break;
2715 case 0x3ce:
2716 val = s->gr_index;
2717 break;
2718 case 0x3cf:
2719 val = cirrus_vga_read_gr(c, s->gr_index);
2720 #ifdef DEBUG_VGA_REG
2721 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2722 #endif
2723 break;
2724 case 0x3b4:
2725 case 0x3d4:
2726 val = s->cr_index;
2727 break;
2728 case 0x3b5:
2729 case 0x3d5:
2730 val = cirrus_vga_read_cr(c, s->cr_index);
2731 #ifdef DEBUG_VGA_REG
2732 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2733 #endif
2734 break;
2735 case 0x3ba:
2736 case 0x3da:
2737 /* just toggle to fool polling */
2738 val = s->st01 = s->retrace(s);
2739 s->ar_flip_flop = 0;
2740 break;
2741 default:
2742 val = 0x00;
2743 break;
2744 }
2745 }
2746 #if defined(DEBUG_VGA)
2747 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2748 #endif
2749 return val;
2750 }
2751
2752 static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2753 {
2754 CirrusVGAState *c = opaque;
2755 VGACommonState *s = &c->vga;
2756 int index;
2757
2758 /* check port range access depending on color/monochrome mode */
2759 if (vga_ioport_invalid(s, addr)) {
2760 return;
2761 }
2762 #ifdef DEBUG_VGA
2763 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2764 #endif
2765
2766 switch (addr) {
2767 case 0x3c0:
2768 if (s->ar_flip_flop == 0) {
2769 val &= 0x3f;
2770 s->ar_index = val;
2771 } else {
2772 index = s->ar_index & 0x1f;
2773 switch (index) {
2774 case 0x00 ... 0x0f:
2775 s->ar[index] = val & 0x3f;
2776 break;
2777 case 0x10:
2778 s->ar[index] = val & ~0x10;
2779 break;
2780 case 0x11:
2781 s->ar[index] = val;
2782 break;
2783 case 0x12:
2784 s->ar[index] = val & ~0xc0;
2785 break;
2786 case 0x13:
2787 s->ar[index] = val & ~0xf0;
2788 break;
2789 case 0x14:
2790 s->ar[index] = val & ~0xf0;
2791 break;
2792 default:
2793 break;
2794 }
2795 }
2796 s->ar_flip_flop ^= 1;
2797 break;
2798 case 0x3c2:
2799 s->msr = val & ~0x10;
2800 s->update_retrace_info(s);
2801 break;
2802 case 0x3c4:
2803 s->sr_index = val;
2804 break;
2805 case 0x3c5:
2806 #ifdef DEBUG_VGA_REG
2807 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2808 #endif
2809 cirrus_vga_write_sr(c, val);
2810 break;
2811 break;
2812 case 0x3c6:
2813 cirrus_write_hidden_dac(c, val);
2814 break;
2815 case 0x3c7:
2816 s->dac_read_index = val;
2817 s->dac_sub_index = 0;
2818 s->dac_state = 3;
2819 break;
2820 case 0x3c8:
2821 s->dac_write_index = val;
2822 s->dac_sub_index = 0;
2823 s->dac_state = 0;
2824 break;
2825 case 0x3c9:
2826 cirrus_vga_write_palette(c, val);
2827 break;
2828 case 0x3ce:
2829 s->gr_index = val;
2830 break;
2831 case 0x3cf:
2832 #ifdef DEBUG_VGA_REG
2833 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2834 #endif
2835 cirrus_vga_write_gr(c, s->gr_index, val);
2836 break;
2837 case 0x3b4:
2838 case 0x3d4:
2839 s->cr_index = val;
2840 break;
2841 case 0x3b5:
2842 case 0x3d5:
2843 #ifdef DEBUG_VGA_REG
2844 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2845 #endif
2846 cirrus_vga_write_cr(c, val);
2847 break;
2848 case 0x3ba:
2849 case 0x3da:
2850 s->fcr = val & 0x10;
2851 break;
2852 }
2853 }
2854
2855 /***************************************
2856 *
2857 * memory-mapped I/O access
2858 *
2859 ***************************************/
2860
2861 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2862 {
2863 CirrusVGAState *s = opaque;
2864
2865 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2866
2867 if (addr >= 0x100) {
2868 return cirrus_mmio_blt_read(s, addr - 0x100);
2869 } else {
2870 return cirrus_vga_ioport_read(s, addr + 0x3c0);
2871 }
2872 }
2873
2874 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2875 {
2876 uint32_t v;
2877 #ifdef TARGET_WORDS_BIGENDIAN
2878 v = cirrus_mmio_readb(opaque, addr) << 8;
2879 v |= cirrus_mmio_readb(opaque, addr + 1);
2880 #else
2881 v = cirrus_mmio_readb(opaque, addr);
2882 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2883 #endif
2884 return v;
2885 }
2886
2887 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2888 {
2889 uint32_t v;
2890 #ifdef TARGET_WORDS_BIGENDIAN
2891 v = cirrus_mmio_readb(opaque, addr) << 24;
2892 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2893 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2894 v |= cirrus_mmio_readb(opaque, addr + 3);
2895 #else
2896 v = cirrus_mmio_readb(opaque, addr);
2897 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2898 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2899 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2900 #endif
2901 return v;
2902 }
2903
2904 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2905 uint32_t val)
2906 {
2907 CirrusVGAState *s = opaque;
2908
2909 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2910
2911 if (addr >= 0x100) {
2912 cirrus_mmio_blt_write(s, addr - 0x100, val);
2913 } else {
2914 cirrus_vga_ioport_write(s, addr + 0x3c0, val);
2915 }
2916 }
2917
2918 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2919 uint32_t val)
2920 {
2921 #ifdef TARGET_WORDS_BIGENDIAN
2922 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2923 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2924 #else
2925 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2926 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2927 #endif
2928 }
2929
2930 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
2931 uint32_t val)
2932 {
2933 #ifdef TARGET_WORDS_BIGENDIAN
2934 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
2935 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2936 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2937 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
2938 #else
2939 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2940 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2941 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2942 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2943 #endif
2944 }
2945
2946
2947 static CPUReadMemoryFunc * const cirrus_mmio_read[3] = {
2948 cirrus_mmio_readb,
2949 cirrus_mmio_readw,
2950 cirrus_mmio_readl,
2951 };
2952
2953 static CPUWriteMemoryFunc * const cirrus_mmio_write[3] = {
2954 cirrus_mmio_writeb,
2955 cirrus_mmio_writew,
2956 cirrus_mmio_writel,
2957 };
2958
2959 /* load/save state */
2960
2961 static int cirrus_post_load(void *opaque, int version_id)
2962 {
2963 CirrusVGAState *s = opaque;
2964
2965 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2966 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2967
2968 cirrus_update_memory_access(s);
2969 /* force refresh */
2970 s->vga.graphic_mode = -1;
2971 cirrus_update_bank_ptr(s, 0);
2972 cirrus_update_bank_ptr(s, 1);
2973 return 0;
2974 }
2975
2976 static const VMStateDescription vmstate_cirrus_vga = {
2977 .name = "cirrus_vga",
2978 .version_id = 2,
2979 .minimum_version_id = 1,
2980 .minimum_version_id_old = 1,
2981 .post_load = cirrus_post_load,
2982 .fields = (VMStateField []) {
2983 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2984 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2985 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2986 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2987 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2988 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2989 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2990 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2991 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2992 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2993 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2994 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2995 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2996 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2997 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2998 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2999 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
3000 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
3001 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
3002 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
3003 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
3004 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
3005 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
3006 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
3007 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
3008 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
3009 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
3010 /* XXX: we do not save the bitblt state - we assume we do not save
3011 the state when the blitter is active */
3012 VMSTATE_END_OF_LIST()
3013 }
3014 };
3015
3016 static const VMStateDescription vmstate_pci_cirrus_vga = {
3017 .name = "cirrus_vga",
3018 .version_id = 2,
3019 .minimum_version_id = 2,
3020 .minimum_version_id_old = 2,
3021 .post_load = cirrus_post_load,
3022 .fields = (VMStateField []) {
3023 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
3024 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
3025 vmstate_cirrus_vga, CirrusVGAState),
3026 VMSTATE_END_OF_LIST()
3027 }
3028 };
3029
3030 /***************************************
3031 *
3032 * initialize
3033 *
3034 ***************************************/
3035
3036 static void cirrus_reset(void *opaque)
3037 {
3038 CirrusVGAState *s = opaque;
3039
3040 vga_common_reset(&s->vga);
3041 unmap_linear_vram(s);
3042 s->vga.sr[0x06] = 0x0f;
3043 if (s->device_id == CIRRUS_ID_CLGD5446) {
3044 /* 4MB 64 bit memory config, always PCI */
3045 s->vga.sr[0x1F] = 0x2d; // MemClock
3046 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
3047 s->vga.sr[0x0f] = 0x98;
3048 s->vga.sr[0x17] = 0x20;
3049 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3050 } else {
3051 s->vga.sr[0x1F] = 0x22; // MemClock
3052 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
3053 s->vga.sr[0x17] = s->bustype;
3054 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3055 }
3056 s->vga.cr[0x27] = s->device_id;
3057
3058 /* Win2K seems to assume that the pattern buffer is at 0xff
3059 initially ! */
3060 memset(s->vga.vram_ptr, 0xff, s->real_vram_size);
3061
3062 s->cirrus_hidden_dac_lockindex = 5;
3063 s->cirrus_hidden_dac_data = 0;
3064 }
3065
3066 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3067 {
3068 int i;
3069 static int inited;
3070
3071 if (!inited) {
3072 inited = 1;
3073 for(i = 0;i < 256; i++)
3074 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3075 rop_to_index[CIRRUS_ROP_0] = 0;
3076 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3077 rop_to_index[CIRRUS_ROP_NOP] = 2;
3078 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3079 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3080 rop_to_index[CIRRUS_ROP_SRC] = 5;
3081 rop_to_index[CIRRUS_ROP_1] = 6;
3082 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3083 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3084 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3085 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3086 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3087 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3088 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3089 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3090 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3091 s->device_id = device_id;
3092 if (is_pci)
3093 s->bustype = CIRRUS_BUSTYPE_PCI;
3094 else
3095 s->bustype = CIRRUS_BUSTYPE_ISA;
3096 }
3097
3098 register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
3099
3100 register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
3101 register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
3102 register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
3103 register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
3104
3105 register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
3106
3107 register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
3108 register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
3109 register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
3110 register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
3111
3112 s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
3113 cirrus_vga_mem_write, s);
3114 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3115 s->vga.vga_io_memory);
3116 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3117
3118 /* I/O handler for LFB */
3119 s->cirrus_linear_io_addr =
3120 cpu_register_io_memory(cirrus_linear_read, cirrus_linear_write, s);
3121
3122 /* I/O handler for LFB */
3123 s->cirrus_linear_bitblt_io_addr =
3124 cpu_register_io_memory(cirrus_linear_bitblt_read,
3125 cirrus_linear_bitblt_write, s);
3126
3127 /* I/O handler for memory-mapped I/O */
3128 s->cirrus_mmio_io_addr =
3129 cpu_register_io_memory(cirrus_mmio_read, cirrus_mmio_write, s);
3130
3131 s->real_vram_size =
3132 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
3133
3134 /* XXX: s->vga.vram_size must be a power of two */
3135 s->cirrus_addr_mask = s->real_vram_size - 1;
3136 s->linear_mmio_mask = s->real_vram_size - 256;
3137
3138 s->vga.get_bpp = cirrus_get_bpp;
3139 s->vga.get_offsets = cirrus_get_offsets;
3140 s->vga.get_resolution = cirrus_get_resolution;
3141 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
3142 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
3143
3144 qemu_register_reset(cirrus_reset, s);
3145 cirrus_reset(s);
3146 }
3147
3148 /***************************************
3149 *
3150 * ISA bus support
3151 *
3152 ***************************************/
3153
3154 void isa_cirrus_vga_init(void)
3155 {
3156 CirrusVGAState *s;
3157
3158 s = qemu_mallocz(sizeof(CirrusVGAState));
3159
3160 vga_common_init(&s->vga, VGA_RAM_SIZE);
3161 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3162 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3163 s->vga.screen_dump, s->vga.text_update,
3164 &s->vga);
3165 vmstate_register(0, &vmstate_cirrus_vga, s);
3166 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
3167 /* XXX ISA-LFB support */
3168 }
3169
3170 /***************************************
3171 *
3172 * PCI bus support
3173 *
3174 ***************************************/
3175
3176 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3177 uint32_t addr, uint32_t size, int type)
3178 {
3179 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3180
3181 /* XXX: add byte swapping apertures */
3182 cpu_register_physical_memory(addr, s->vga.vram_size,
3183 s->cirrus_linear_io_addr);
3184 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3185 s->cirrus_linear_bitblt_io_addr);
3186
3187 s->vga.map_addr = s->vga.map_end = 0;
3188 s->vga.lfb_addr = addr & TARGET_PAGE_MASK;
3189 s->vga.lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3190 /* account for overflow */
3191 if (s->vga.lfb_end < addr + VGA_RAM_SIZE)
3192 s->vga.lfb_end = addr + VGA_RAM_SIZE;
3193
3194 vga_dirty_log_start(&s->vga);
3195 }
3196
3197 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3198 uint32_t addr, uint32_t size, int type)
3199 {
3200 CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
3201
3202 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3203 s->cirrus_mmio_io_addr);
3204 }
3205
3206 static void pci_cirrus_write_config(PCIDevice *d,
3207 uint32_t address, uint32_t val, int len)
3208 {
3209 PCICirrusVGAState *pvs = DO_UPCAST(PCICirrusVGAState, dev, d);
3210 CirrusVGAState *s = &pvs->cirrus_vga;
3211
3212 pci_default_write_config(d, address, val, len);
3213 if (s->vga.map_addr && d->io_regions[0].addr == -1)
3214 s->vga.map_addr = 0;
3215 cirrus_update_memory_access(s);
3216 }
3217
3218 static int pci_cirrus_vga_initfn(PCIDevice *dev)
3219 {
3220 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
3221 CirrusVGAState *s = &d->cirrus_vga;
3222 uint8_t *pci_conf = d->dev.config;
3223 int device_id = CIRRUS_ID_CLGD5446;
3224
3225 /* setup VGA */
3226 vga_common_init(&s->vga, VGA_RAM_SIZE);
3227 cirrus_init_common(s, device_id, 1);
3228 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3229 s->vga.screen_dump, s->vga.text_update,
3230 &s->vga);
3231
3232 /* setup PCI */
3233 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CIRRUS);
3234 pci_config_set_device_id(pci_conf, device_id);
3235 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3236 pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
3237 pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
3238
3239 /* setup memory space */
3240 /* memory #0 LFB */
3241 /* memory #1 memory-mapped I/O */
3242 /* XXX: s->vga.vram_size must be a power of two */
3243 pci_register_bar((PCIDevice *)d, 0, 0x2000000,
3244 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3245 if (device_id == CIRRUS_ID_CLGD5446) {
3246 pci_register_bar((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3247 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3248 }
3249 vmstate_register(0, &vmstate_pci_cirrus_vga, d);
3250
3251 /* ROM BIOS */
3252 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
3253 return 0;
3254 }
3255
3256 void pci_cirrus_vga_init(PCIBus *bus)
3257 {
3258 pci_create_simple(bus, -1, "Cirrus VGA");
3259 }
3260
3261 static PCIDeviceInfo cirrus_vga_info = {
3262 .qdev.name = "Cirrus VGA",
3263 .qdev.size = sizeof(PCICirrusVGAState),
3264 .init = pci_cirrus_vga_initfn,
3265 .config_write = pci_cirrus_write_config,
3266 };
3267
3268 static void cirrus_vga_register(void)
3269 {
3270 pci_qdev_register(&cirrus_vga_info);
3271 }
3272 device_init(cirrus_vga_register);
various patches