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Fix 32-bit overflow in parallels image support
[qemu-kvm/fedora.git] / hw / cirrus_vga.c
blob9e775a99230748aca45d256e4da6cc54207bd6ff
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 "qemu-kvm.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
213 /* I/O and memory hook */
214 #define CIRRUS_HOOK_NOT_HANDLED 0
215 #define CIRRUS_HOOK_HANDLED 1
216
217 #define ABS(a) ((signed)(a) > 0 ? a : -a)
218
219 #define BLTUNSAFE(s) \
220 ( \
221 ( /* check dst is within bounds */ \
222 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
223 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
224 (s)->vga.vram_size \
225 ) || \
226 ( /* check src is within bounds */ \
227 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
228 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
229 (s)->vga.vram_size \
230 ) \
231 )
232
233 struct CirrusVGAState;
234 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
235 uint8_t * dst, const uint8_t * src,
236 int dstpitch, int srcpitch,
237 int bltwidth, int bltheight);
238 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
239 uint8_t *dst, int dst_pitch, int width, int height);
240
241 typedef struct CirrusVGAState {
242 VGACommonState vga;
243
244 int cirrus_linear_io_addr;
245 int cirrus_linear_bitblt_io_addr;
246 int cirrus_mmio_io_addr;
247 uint32_t cirrus_addr_mask;
248 uint32_t linear_mmio_mask;
249 uint8_t cirrus_shadow_gr0;
250 uint8_t cirrus_shadow_gr1;
251 uint8_t cirrus_hidden_dac_lockindex;
252 uint8_t cirrus_hidden_dac_data;
253 uint32_t cirrus_bank_base[2];
254 uint32_t cirrus_bank_limit[2];
255 uint8_t cirrus_hidden_palette[48];
256 uint32_t hw_cursor_x;
257 uint32_t hw_cursor_y;
258 int cirrus_blt_pixelwidth;
259 int cirrus_blt_width;
260 int cirrus_blt_height;
261 int cirrus_blt_dstpitch;
262 int cirrus_blt_srcpitch;
263 uint32_t cirrus_blt_fgcol;
264 uint32_t cirrus_blt_bgcol;
265 uint32_t cirrus_blt_dstaddr;
266 uint32_t cirrus_blt_srcaddr;
267 uint8_t cirrus_blt_mode;
268 uint8_t cirrus_blt_modeext;
269 cirrus_bitblt_rop_t cirrus_rop;
270 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
271 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
272 uint8_t *cirrus_srcptr;
273 uint8_t *cirrus_srcptr_end;
274 uint32_t cirrus_srccounter;
275 /* hwcursor display state */
276 int last_hw_cursor_size;
277 int last_hw_cursor_x;
278 int last_hw_cursor_y;
279 int last_hw_cursor_y_start;
280 int last_hw_cursor_y_end;
281 int real_vram_size; /* XXX: suppress that */
282 int device_id;
283 int bustype;
284 } CirrusVGAState;
285
286 typedef struct PCICirrusVGAState {
287 PCIDevice dev;
288 CirrusVGAState cirrus_vga;
289 } PCICirrusVGAState;
290
291 static uint8_t rop_to_index[256];
292
293 /***************************************
294 *
295 * prototypes.
296 *
297 ***************************************/
298
299
300 static void cirrus_bitblt_reset(CirrusVGAState *s);
301 static void cirrus_update_memory_access(CirrusVGAState *s);
302
303 /***************************************
304 *
305 * raster operations
306 *
307 ***************************************/
308
309 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
310 uint8_t *dst,const uint8_t *src,
311 int dstpitch,int srcpitch,
312 int bltwidth,int bltheight)
313 {
314 }
315
316 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
317 uint8_t *dst,
318 int dstpitch, int bltwidth,int bltheight)
319 {
320 }
321
322 #define ROP_NAME 0
323 #define ROP_OP(d, s) d = 0
324 #include "cirrus_vga_rop.h"
325
326 #define ROP_NAME src_and_dst
327 #define ROP_OP(d, s) d = (s) & (d)
328 #include "cirrus_vga_rop.h"
329
330 #define ROP_NAME src_and_notdst
331 #define ROP_OP(d, s) d = (s) & (~(d))
332 #include "cirrus_vga_rop.h"
333
334 #define ROP_NAME notdst
335 #define ROP_OP(d, s) d = ~(d)
336 #include "cirrus_vga_rop.h"
337
338 #define ROP_NAME src
339 #define ROP_OP(d, s) d = s
340 #include "cirrus_vga_rop.h"
341
342 #define ROP_NAME 1
343 #define ROP_OP(d, s) d = ~0
344 #include "cirrus_vga_rop.h"
345
346 #define ROP_NAME notsrc_and_dst
347 #define ROP_OP(d, s) d = (~(s)) & (d)
348 #include "cirrus_vga_rop.h"
349
350 #define ROP_NAME src_xor_dst
351 #define ROP_OP(d, s) d = (s) ^ (d)
352 #include "cirrus_vga_rop.h"
353
354 #define ROP_NAME src_or_dst
355 #define ROP_OP(d, s) d = (s) | (d)
356 #include "cirrus_vga_rop.h"
357
358 #define ROP_NAME notsrc_or_notdst
359 #define ROP_OP(d, s) d = (~(s)) | (~(d))
360 #include "cirrus_vga_rop.h"
361
362 #define ROP_NAME src_notxor_dst
363 #define ROP_OP(d, s) d = ~((s) ^ (d))
364 #include "cirrus_vga_rop.h"
365
366 #define ROP_NAME src_or_notdst
367 #define ROP_OP(d, s) d = (s) | (~(d))
368 #include "cirrus_vga_rop.h"
369
370 #define ROP_NAME notsrc
371 #define ROP_OP(d, s) d = (~(s))
372 #include "cirrus_vga_rop.h"
373
374 #define ROP_NAME notsrc_or_dst
375 #define ROP_OP(d, s) d = (~(s)) | (d)
376 #include "cirrus_vga_rop.h"
377
378 #define ROP_NAME notsrc_and_notdst
379 #define ROP_OP(d, s) d = (~(s)) & (~(d))
380 #include "cirrus_vga_rop.h"
381
382 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
383 cirrus_bitblt_rop_fwd_0,
384 cirrus_bitblt_rop_fwd_src_and_dst,
385 cirrus_bitblt_rop_nop,
386 cirrus_bitblt_rop_fwd_src_and_notdst,
387 cirrus_bitblt_rop_fwd_notdst,
388 cirrus_bitblt_rop_fwd_src,
389 cirrus_bitblt_rop_fwd_1,
390 cirrus_bitblt_rop_fwd_notsrc_and_dst,
391 cirrus_bitblt_rop_fwd_src_xor_dst,
392 cirrus_bitblt_rop_fwd_src_or_dst,
393 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
394 cirrus_bitblt_rop_fwd_src_notxor_dst,
395 cirrus_bitblt_rop_fwd_src_or_notdst,
396 cirrus_bitblt_rop_fwd_notsrc,
397 cirrus_bitblt_rop_fwd_notsrc_or_dst,
398 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
399 };
400
401 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
402 cirrus_bitblt_rop_bkwd_0,
403 cirrus_bitblt_rop_bkwd_src_and_dst,
404 cirrus_bitblt_rop_nop,
405 cirrus_bitblt_rop_bkwd_src_and_notdst,
406 cirrus_bitblt_rop_bkwd_notdst,
407 cirrus_bitblt_rop_bkwd_src,
408 cirrus_bitblt_rop_bkwd_1,
409 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
410 cirrus_bitblt_rop_bkwd_src_xor_dst,
411 cirrus_bitblt_rop_bkwd_src_or_dst,
412 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
413 cirrus_bitblt_rop_bkwd_src_notxor_dst,
414 cirrus_bitblt_rop_bkwd_src_or_notdst,
415 cirrus_bitblt_rop_bkwd_notsrc,
416 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
417 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
418 };
419
420 #define TRANSP_ROP(name) {\
421 name ## _8,\
422 name ## _16,\
423 }
424 #define TRANSP_NOP(func) {\
425 func,\
426 func,\
427 }
428
429 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
432 TRANSP_NOP(cirrus_bitblt_rop_nop),
433 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
434 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
435 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
436 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
446 };
447
448 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
451 TRANSP_NOP(cirrus_bitblt_rop_nop),
452 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
453 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
454 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
455 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
465 };
466
467 #define ROP2(name) {\
468 name ## _8,\
469 name ## _16,\
470 name ## _24,\
471 name ## _32,\
472 }
473
474 #define ROP_NOP2(func) {\
475 func,\
476 func,\
477 func,\
478 func,\
479 }
480
481 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
482 ROP2(cirrus_patternfill_0),
483 ROP2(cirrus_patternfill_src_and_dst),
484 ROP_NOP2(cirrus_bitblt_rop_nop),
485 ROP2(cirrus_patternfill_src_and_notdst),
486 ROP2(cirrus_patternfill_notdst),
487 ROP2(cirrus_patternfill_src),
488 ROP2(cirrus_patternfill_1),
489 ROP2(cirrus_patternfill_notsrc_and_dst),
490 ROP2(cirrus_patternfill_src_xor_dst),
491 ROP2(cirrus_patternfill_src_or_dst),
492 ROP2(cirrus_patternfill_notsrc_or_notdst),
493 ROP2(cirrus_patternfill_src_notxor_dst),
494 ROP2(cirrus_patternfill_src_or_notdst),
495 ROP2(cirrus_patternfill_notsrc),
496 ROP2(cirrus_patternfill_notsrc_or_dst),
497 ROP2(cirrus_patternfill_notsrc_and_notdst),
498 };
499
500 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
501 ROP2(cirrus_colorexpand_transp_0),
502 ROP2(cirrus_colorexpand_transp_src_and_dst),
503 ROP_NOP2(cirrus_bitblt_rop_nop),
504 ROP2(cirrus_colorexpand_transp_src_and_notdst),
505 ROP2(cirrus_colorexpand_transp_notdst),
506 ROP2(cirrus_colorexpand_transp_src),
507 ROP2(cirrus_colorexpand_transp_1),
508 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
509 ROP2(cirrus_colorexpand_transp_src_xor_dst),
510 ROP2(cirrus_colorexpand_transp_src_or_dst),
511 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
512 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
513 ROP2(cirrus_colorexpand_transp_src_or_notdst),
514 ROP2(cirrus_colorexpand_transp_notsrc),
515 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
516 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
517 };
518
519 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
520 ROP2(cirrus_colorexpand_0),
521 ROP2(cirrus_colorexpand_src_and_dst),
522 ROP_NOP2(cirrus_bitblt_rop_nop),
523 ROP2(cirrus_colorexpand_src_and_notdst),
524 ROP2(cirrus_colorexpand_notdst),
525 ROP2(cirrus_colorexpand_src),
526 ROP2(cirrus_colorexpand_1),
527 ROP2(cirrus_colorexpand_notsrc_and_dst),
528 ROP2(cirrus_colorexpand_src_xor_dst),
529 ROP2(cirrus_colorexpand_src_or_dst),
530 ROP2(cirrus_colorexpand_notsrc_or_notdst),
531 ROP2(cirrus_colorexpand_src_notxor_dst),
532 ROP2(cirrus_colorexpand_src_or_notdst),
533 ROP2(cirrus_colorexpand_notsrc),
534 ROP2(cirrus_colorexpand_notsrc_or_dst),
535 ROP2(cirrus_colorexpand_notsrc_and_notdst),
536 };
537
538 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
539 ROP2(cirrus_colorexpand_pattern_transp_0),
540 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
541 ROP_NOP2(cirrus_bitblt_rop_nop),
542 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
543 ROP2(cirrus_colorexpand_pattern_transp_notdst),
544 ROP2(cirrus_colorexpand_pattern_transp_src),
545 ROP2(cirrus_colorexpand_pattern_transp_1),
546 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
547 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
548 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
549 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
550 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
551 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
552 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
553 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
554 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
555 };
556
557 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
558 ROP2(cirrus_colorexpand_pattern_0),
559 ROP2(cirrus_colorexpand_pattern_src_and_dst),
560 ROP_NOP2(cirrus_bitblt_rop_nop),
561 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
562 ROP2(cirrus_colorexpand_pattern_notdst),
563 ROP2(cirrus_colorexpand_pattern_src),
564 ROP2(cirrus_colorexpand_pattern_1),
565 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
566 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
567 ROP2(cirrus_colorexpand_pattern_src_or_dst),
568 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
569 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
570 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
571 ROP2(cirrus_colorexpand_pattern_notsrc),
572 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
573 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
574 };
575
576 static const cirrus_fill_t cirrus_fill[16][4] = {
577 ROP2(cirrus_fill_0),
578 ROP2(cirrus_fill_src_and_dst),
579 ROP_NOP2(cirrus_bitblt_fill_nop),
580 ROP2(cirrus_fill_src_and_notdst),
581 ROP2(cirrus_fill_notdst),
582 ROP2(cirrus_fill_src),
583 ROP2(cirrus_fill_1),
584 ROP2(cirrus_fill_notsrc_and_dst),
585 ROP2(cirrus_fill_src_xor_dst),
586 ROP2(cirrus_fill_src_or_dst),
587 ROP2(cirrus_fill_notsrc_or_notdst),
588 ROP2(cirrus_fill_src_notxor_dst),
589 ROP2(cirrus_fill_src_or_notdst),
590 ROP2(cirrus_fill_notsrc),
591 ROP2(cirrus_fill_notsrc_or_dst),
592 ROP2(cirrus_fill_notsrc_and_notdst),
593 };
594
595 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
596 {
597 unsigned int color;
598 switch (s->cirrus_blt_pixelwidth) {
599 case 1:
600 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
601 break;
602 case 2:
603 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
604 s->cirrus_blt_fgcol = le16_to_cpu(color);
605 break;
606 case 3:
607 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
608 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
609 break;
610 default:
611 case 4:
612 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
613 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
614 s->cirrus_blt_fgcol = le32_to_cpu(color);
615 break;
616 }
617 }
618
619 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
620 {
621 unsigned int color;
622 switch (s->cirrus_blt_pixelwidth) {
623 case 1:
624 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
625 break;
626 case 2:
627 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
628 s->cirrus_blt_bgcol = le16_to_cpu(color);
629 break;
630 case 3:
631 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
632 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
633 break;
634 default:
635 case 4:
636 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
637 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
638 s->cirrus_blt_bgcol = le32_to_cpu(color);
639 break;
640 }
641 }
642
643 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
644 int off_pitch, int bytesperline,
645 int lines)
646 {
647 int y;
648 int off_cur;
649 int off_cur_end;
650
651 for (y = 0; y < lines; y++) {
652 off_cur = off_begin;
653 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
654 off_cur &= TARGET_PAGE_MASK;
655 while (off_cur < off_cur_end) {
656 cpu_physical_memory_set_dirty(s->vga.vram_offset + off_cur);
657 off_cur += TARGET_PAGE_SIZE;
658 }
659 off_begin += off_pitch;
660 }
661 }
662
663 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
664 const uint8_t * src)
665 {
666 uint8_t *dst;
667
668 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
669
670 if (BLTUNSAFE(s))
671 return 0;
672
673 (*s->cirrus_rop) (s, dst, src,
674 s->cirrus_blt_dstpitch, 0,
675 s->cirrus_blt_width, s->cirrus_blt_height);
676 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
677 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
678 s->cirrus_blt_height);
679 return 1;
680 }
681
682 /* fill */
683
684 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
685 {
686 cirrus_fill_t rop_func;
687
688 if (BLTUNSAFE(s))
689 return 0;
690 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
691 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
692 s->cirrus_blt_dstpitch,
693 s->cirrus_blt_width, s->cirrus_blt_height);
694 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
695 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
696 s->cirrus_blt_height);
697 cirrus_bitblt_reset(s);
698 return 1;
699 }
700
701 /***************************************
702 *
703 * bitblt (video-to-video)
704 *
705 ***************************************/
706
707 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
708 {
709 return cirrus_bitblt_common_patterncopy(s,
710 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
711 s->cirrus_addr_mask));
712 }
713
714 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
715 {
716 int sx, sy;
717 int dx, dy;
718 int width, height;
719 int depth;
720 int notify = 0;
721
722 depth = s->vga.get_bpp(&s->vga) / 8;
723 s->vga.get_resolution(&s->vga, &width, &height);
724
725 /* extra x, y */
726 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
727 sy = (src / ABS(s->cirrus_blt_srcpitch));
728 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
729 dy = (dst / ABS(s->cirrus_blt_dstpitch));
730
731 /* normalize width */
732 w /= depth;
733
734 /* if we're doing a backward copy, we have to adjust
735 our x/y to be the upper left corner (instead of the lower
736 right corner) */
737 if (s->cirrus_blt_dstpitch < 0) {
738 sx -= (s->cirrus_blt_width / depth) - 1;
739 dx -= (s->cirrus_blt_width / depth) - 1;
740 sy -= s->cirrus_blt_height - 1;
741 dy -= s->cirrus_blt_height - 1;
742 }
743
744 /* are we in the visible portion of memory? */
745 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
746 (sx + w) <= width && (sy + h) <= height &&
747 (dx + w) <= width && (dy + h) <= height) {
748 notify = 1;
749 }
750
751 /* make to sure only copy if it's a plain copy ROP */
752 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
753 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
754 notify = 0;
755
756 /* we have to flush all pending changes so that the copy
757 is generated at the appropriate moment in time */
758 if (notify)
759 vga_hw_update();
760
761 (*s->cirrus_rop) (s, s->vga.vram_ptr +
762 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
763 s->vga.vram_ptr +
764 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
765 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
766 s->cirrus_blt_width, s->cirrus_blt_height);
767
768 if (notify)
769 qemu_console_copy(s->vga.ds,
770 sx, sy, dx, dy,
771 s->cirrus_blt_width / depth,
772 s->cirrus_blt_height);
773
774 /* we don't have to notify the display that this portion has
775 changed since qemu_console_copy implies this */
776
777 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
778 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
779 s->cirrus_blt_height);
780 }
781
782 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
783 {
784 if (BLTUNSAFE(s))
785 return 0;
786
787 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
788 s->cirrus_blt_srcaddr - s->vga.start_addr,
789 s->cirrus_blt_width, s->cirrus_blt_height);
790
791 return 1;
792 }
793
794 /***************************************
795 *
796 * bitblt (cpu-to-video)
797 *
798 ***************************************/
799
800 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
801 {
802 int copy_count;
803 uint8_t *end_ptr;
804
805 if (s->cirrus_srccounter > 0) {
806 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
807 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
808 the_end:
809 s->cirrus_srccounter = 0;
810 cirrus_bitblt_reset(s);
811 } else {
812 /* at least one scan line */
813 do {
814 (*s->cirrus_rop)(s, s->vga.vram_ptr +
815 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
816 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
817 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
818 s->cirrus_blt_width, 1);
819 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
820 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
821 if (s->cirrus_srccounter <= 0)
822 goto the_end;
823 /* more bytes than needed can be transfered because of
824 word alignment, so we keep them for the next line */
825 /* XXX: keep alignment to speed up transfer */
826 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
827 copy_count = s->cirrus_srcptr_end - end_ptr;
828 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
829 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
830 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
831 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
832 }
833 }
834 }
835
836 /***************************************
837 *
838 * bitblt wrapper
839 *
840 ***************************************/
841
842 static void cirrus_bitblt_reset(CirrusVGAState * s)
843 {
844 int need_update;
845
846 s->vga.gr[0x31] &=
847 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
848 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
849 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
850 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
851 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
852 s->cirrus_srccounter = 0;
853 if (!need_update)
854 return;
855 cirrus_update_memory_access(s);
856 }
857
858 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
859 {
860 int w;
861
862 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
863 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
864 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
865
866 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
867 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
868 s->cirrus_blt_srcpitch = 8;
869 } else {
870 /* XXX: check for 24 bpp */
871 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
872 }
873 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
874 } else {
875 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
876 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
877 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
878 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
879 else
880 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
881 } else {
882 /* always align input size to 32 bits */
883 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
884 }
885 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
886 }
887 s->cirrus_srcptr = s->cirrus_bltbuf;
888 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
889 cirrus_update_memory_access(s);
890 return 1;
891 }
892
893 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
894 {
895 /* XXX */
896 #ifdef DEBUG_BITBLT
897 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
898 #endif
899 return 0;
900 }
901
902 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
903 {
904 int ret;
905
906 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
907 ret = cirrus_bitblt_videotovideo_patterncopy(s);
908 } else {
909 ret = cirrus_bitblt_videotovideo_copy(s);
910 }
911 if (ret)
912 cirrus_bitblt_reset(s);
913 return ret;
914 }
915
916 static void cirrus_bitblt_start(CirrusVGAState * s)
917 {
918 uint8_t blt_rop;
919
920 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
921
922 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
923 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
924 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
925 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
926 s->cirrus_blt_dstaddr =
927 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
928 s->cirrus_blt_srcaddr =
929 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
930 s->cirrus_blt_mode = s->vga.gr[0x30];
931 s->cirrus_blt_modeext = s->vga.gr[0x33];
932 blt_rop = s->vga.gr[0x32];
933
934 #ifdef DEBUG_BITBLT
935 printf("rop=0x%02x mode=0x%02x modeext=0x%02x w=%d h=%d dpitch=%d spitch=%d daddr=0x%08x saddr=0x%08x writemask=0x%02x\n",
936 blt_rop,
937 s->cirrus_blt_mode,
938 s->cirrus_blt_modeext,
939 s->cirrus_blt_width,
940 s->cirrus_blt_height,
941 s->cirrus_blt_dstpitch,
942 s->cirrus_blt_srcpitch,
943 s->cirrus_blt_dstaddr,
944 s->cirrus_blt_srcaddr,
945 s->vga.gr[0x2f]);
946 #endif
947
948 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
949 case CIRRUS_BLTMODE_PIXELWIDTH8:
950 s->cirrus_blt_pixelwidth = 1;
951 break;
952 case CIRRUS_BLTMODE_PIXELWIDTH16:
953 s->cirrus_blt_pixelwidth = 2;
954 break;
955 case CIRRUS_BLTMODE_PIXELWIDTH24:
956 s->cirrus_blt_pixelwidth = 3;
957 break;
958 case CIRRUS_BLTMODE_PIXELWIDTH32:
959 s->cirrus_blt_pixelwidth = 4;
960 break;
961 default:
962 #ifdef DEBUG_BITBLT
963 printf("cirrus: bitblt - pixel width is unknown\n");
964 #endif
965 goto bitblt_ignore;
966 }
967 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
968
969 if ((s->
970 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
971 CIRRUS_BLTMODE_MEMSYSDEST))
972 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
973 #ifdef DEBUG_BITBLT
974 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
975 #endif
976 goto bitblt_ignore;
977 }
978
979 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
980 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
981 CIRRUS_BLTMODE_TRANSPARENTCOMP |
982 CIRRUS_BLTMODE_PATTERNCOPY |
983 CIRRUS_BLTMODE_COLOREXPAND)) ==
984 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
985 cirrus_bitblt_fgcol(s);
986 cirrus_bitblt_solidfill(s, blt_rop);
987 } else {
988 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
989 CIRRUS_BLTMODE_PATTERNCOPY)) ==
990 CIRRUS_BLTMODE_COLOREXPAND) {
991
992 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
993 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
994 cirrus_bitblt_bgcol(s);
995 else
996 cirrus_bitblt_fgcol(s);
997 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
998 } else {
999 cirrus_bitblt_fgcol(s);
1000 cirrus_bitblt_bgcol(s);
1001 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1002 }
1003 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1004 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1005 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1006 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1007 cirrus_bitblt_bgcol(s);
1008 else
1009 cirrus_bitblt_fgcol(s);
1010 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1011 } else {
1012 cirrus_bitblt_fgcol(s);
1013 cirrus_bitblt_bgcol(s);
1014 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1015 }
1016 } else {
1017 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1018 }
1019 } else {
1020 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1021 if (s->cirrus_blt_pixelwidth > 2) {
1022 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1023 goto bitblt_ignore;
1024 }
1025 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1026 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1027 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1028 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1029 } else {
1030 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1031 }
1032 } else {
1033 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1034 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1035 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1036 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1037 } else {
1038 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1039 }
1040 }
1041 }
1042 // setup bitblt engine.
1043 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1044 if (!cirrus_bitblt_cputovideo(s))
1045 goto bitblt_ignore;
1046 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1047 if (!cirrus_bitblt_videotocpu(s))
1048 goto bitblt_ignore;
1049 } else {
1050 if (!cirrus_bitblt_videotovideo(s))
1051 goto bitblt_ignore;
1052 }
1053 }
1054 return;
1055 bitblt_ignore:;
1056 cirrus_bitblt_reset(s);
1057 }
1058
1059 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1060 {
1061 unsigned old_value;
1062
1063 old_value = s->vga.gr[0x31];
1064 s->vga.gr[0x31] = reg_value;
1065
1066 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1067 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1068 cirrus_bitblt_reset(s);
1069 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1070 ((reg_value & CIRRUS_BLT_START) != 0)) {
1071 cirrus_bitblt_start(s);
1072 }
1073 }
1074
1075
1076 /***************************************
1077 *
1078 * basic parameters
1079 *
1080 ***************************************/
1081
1082 static void cirrus_get_offsets(VGAState *s1,
1083 uint32_t *pline_offset,
1084 uint32_t *pstart_addr,
1085 uint32_t *pline_compare)
1086 {
1087 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1088 uint32_t start_addr, line_offset, line_compare;
1089
1090 line_offset = s->vga.cr[0x13]
1091 | ((s->vga.cr[0x1b] & 0x10) << 4);
1092 line_offset <<= 3;
1093 *pline_offset = line_offset;
1094
1095 start_addr = (s->vga.cr[0x0c] << 8)
1096 | s->vga.cr[0x0d]
1097 | ((s->vga.cr[0x1b] & 0x01) << 16)
1098 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1099 | ((s->vga.cr[0x1d] & 0x80) << 12);
1100 *pstart_addr = start_addr;
1101
1102 line_compare = s->vga.cr[0x18] |
1103 ((s->vga.cr[0x07] & 0x10) << 4) |
1104 ((s->vga.cr[0x09] & 0x40) << 3);
1105 *pline_compare = line_compare;
1106 }
1107
1108 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1109 {
1110 uint32_t ret = 16;
1111
1112 switch (s->cirrus_hidden_dac_data & 0xf) {
1113 case 0:
1114 ret = 15;
1115 break; /* Sierra HiColor */
1116 case 1:
1117 ret = 16;
1118 break; /* XGA HiColor */
1119 default:
1120 #ifdef DEBUG_CIRRUS
1121 printf("cirrus: invalid DAC value %x in 16bpp\n",
1122 (s->cirrus_hidden_dac_data & 0xf));
1123 #endif
1124 ret = 15; /* XXX */
1125 break;
1126 }
1127 return ret;
1128 }
1129
1130 static int cirrus_get_bpp(VGAState *s1)
1131 {
1132 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1133 uint32_t ret = 8;
1134
1135 if ((s->vga.sr[0x07] & 0x01) != 0) {
1136 /* Cirrus SVGA */
1137 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1138 case CIRRUS_SR7_BPP_8:
1139 ret = 8;
1140 break;
1141 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1142 ret = cirrus_get_bpp16_depth(s);
1143 break;
1144 case CIRRUS_SR7_BPP_24:
1145 ret = 24;
1146 break;
1147 case CIRRUS_SR7_BPP_16:
1148 ret = cirrus_get_bpp16_depth(s);
1149 break;
1150 case CIRRUS_SR7_BPP_32:
1151 ret = 32;
1152 break;
1153 default:
1154 #ifdef DEBUG_CIRRUS
1155 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1156 #endif
1157 ret = 8;
1158 break;
1159 }
1160 } else {
1161 /* VGA */
1162 ret = 0;
1163 }
1164
1165 return ret;
1166 }
1167
1168 static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1169 {
1170 int width, height;
1171
1172 width = (s->cr[0x01] + 1) * 8;
1173 height = s->cr[0x12] |
1174 ((s->cr[0x07] & 0x02) << 7) |
1175 ((s->cr[0x07] & 0x40) << 3);
1176 height = (height + 1);
1177 /* interlace support */
1178 if (s->cr[0x1a] & 0x01)
1179 height = height * 2;
1180 *pwidth = width;
1181 *pheight = height;
1182 }
1183
1184 /***************************************
1185 *
1186 * bank memory
1187 *
1188 ***************************************/
1189
1190 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1191 {
1192 unsigned offset;
1193 unsigned limit;
1194
1195 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1196 offset = s->vga.gr[0x09 + bank_index];
1197 else /* single bank */
1198 offset = s->vga.gr[0x09];
1199
1200 if ((s->vga.gr[0x0b] & 0x20) != 0)
1201 offset <<= 14;
1202 else
1203 offset <<= 12;
1204
1205 if (s->real_vram_size <= offset)
1206 limit = 0;
1207 else
1208 limit = s->real_vram_size - offset;
1209
1210 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1211 if (limit > 0x8000) {
1212 offset += 0x8000;
1213 limit -= 0x8000;
1214 } else {
1215 limit = 0;
1216 }
1217 }
1218
1219 if (limit > 0) {
1220 /* Thinking about changing bank base? First, drop the dirty bitmap information
1221 * on the current location, otherwise we lose this pointer forever */
1222 if (s->vga.lfb_vram_mapped) {
1223 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1224 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1225 }
1226 s->cirrus_bank_base[bank_index] = offset;
1227 s->cirrus_bank_limit[bank_index] = limit;
1228 } else {
1229 s->cirrus_bank_base[bank_index] = 0;
1230 s->cirrus_bank_limit[bank_index] = 0;
1231 }
1232 }
1233
1234 /***************************************
1235 *
1236 * I/O access between 0x3c4-0x3c5
1237 *
1238 ***************************************/
1239
1240 static int
1241 cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1242 {
1243 switch (reg_index) {
1244 case 0x00: // Standard VGA
1245 case 0x01: // Standard VGA
1246 case 0x02: // Standard VGA
1247 case 0x03: // Standard VGA
1248 case 0x04: // Standard VGA
1249 return CIRRUS_HOOK_NOT_HANDLED;
1250 case 0x06: // Unlock Cirrus extensions
1251 *reg_value = s->vga.sr[reg_index];
1252 break;
1253 case 0x10:
1254 case 0x30:
1255 case 0x50:
1256 case 0x70: // Graphics Cursor X
1257 case 0x90:
1258 case 0xb0:
1259 case 0xd0:
1260 case 0xf0: // Graphics Cursor X
1261 *reg_value = s->vga.sr[0x10];
1262 break;
1263 case 0x11:
1264 case 0x31:
1265 case 0x51:
1266 case 0x71: // Graphics Cursor Y
1267 case 0x91:
1268 case 0xb1:
1269 case 0xd1:
1270 case 0xf1: // Graphics Cursor Y
1271 *reg_value = s->vga.sr[0x11];
1272 break;
1273 case 0x05: // ???
1274 case 0x07: // Extended Sequencer Mode
1275 case 0x08: // EEPROM Control
1276 case 0x09: // Scratch Register 0
1277 case 0x0a: // Scratch Register 1
1278 case 0x0b: // VCLK 0
1279 case 0x0c: // VCLK 1
1280 case 0x0d: // VCLK 2
1281 case 0x0e: // VCLK 3
1282 case 0x0f: // DRAM Control
1283 case 0x12: // Graphics Cursor Attribute
1284 case 0x13: // Graphics Cursor Pattern Address
1285 case 0x14: // Scratch Register 2
1286 case 0x15: // Scratch Register 3
1287 case 0x16: // Performance Tuning Register
1288 case 0x17: // Configuration Readback and Extended Control
1289 case 0x18: // Signature Generator Control
1290 case 0x19: // Signal Generator Result
1291 case 0x1a: // Signal Generator Result
1292 case 0x1b: // VCLK 0 Denominator & Post
1293 case 0x1c: // VCLK 1 Denominator & Post
1294 case 0x1d: // VCLK 2 Denominator & Post
1295 case 0x1e: // VCLK 3 Denominator & Post
1296 case 0x1f: // BIOS Write Enable and MCLK select
1297 #ifdef DEBUG_CIRRUS
1298 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1299 #endif
1300 *reg_value = s->vga.sr[reg_index];
1301 break;
1302 default:
1303 #ifdef DEBUG_CIRRUS
1304 printf("cirrus: inport sr_index %02x\n", reg_index);
1305 #endif
1306 *reg_value = 0xff;
1307 break;
1308 }
1309
1310 return CIRRUS_HOOK_HANDLED;
1311 }
1312
1313 static int
1314 cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1315 {
1316 switch (reg_index) {
1317 case 0x00: // Standard VGA
1318 case 0x01: // Standard VGA
1319 case 0x02: // Standard VGA
1320 case 0x03: // Standard VGA
1321 case 0x04: // Standard VGA
1322 return CIRRUS_HOOK_NOT_HANDLED;
1323 case 0x06: // Unlock Cirrus extensions
1324 reg_value &= 0x17;
1325 if (reg_value == 0x12) {
1326 s->vga.sr[reg_index] = 0x12;
1327 } else {
1328 s->vga.sr[reg_index] = 0x0f;
1329 }
1330 break;
1331 case 0x10:
1332 case 0x30:
1333 case 0x50:
1334 case 0x70: // Graphics Cursor X
1335 case 0x90:
1336 case 0xb0:
1337 case 0xd0:
1338 case 0xf0: // Graphics Cursor X
1339 s->vga.sr[0x10] = reg_value;
1340 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
1341 break;
1342 case 0x11:
1343 case 0x31:
1344 case 0x51:
1345 case 0x71: // Graphics Cursor Y
1346 case 0x91:
1347 case 0xb1:
1348 case 0xd1:
1349 case 0xf1: // Graphics Cursor Y
1350 s->vga.sr[0x11] = reg_value;
1351 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
1352 break;
1353 case 0x07: // Extended Sequencer Mode
1354 cirrus_update_memory_access(s);
1355 case 0x08: // EEPROM Control
1356 case 0x09: // Scratch Register 0
1357 case 0x0a: // Scratch Register 1
1358 case 0x0b: // VCLK 0
1359 case 0x0c: // VCLK 1
1360 case 0x0d: // VCLK 2
1361 case 0x0e: // VCLK 3
1362 case 0x0f: // DRAM Control
1363 case 0x12: // Graphics Cursor Attribute
1364 case 0x13: // Graphics Cursor Pattern Address
1365 case 0x14: // Scratch Register 2
1366 case 0x15: // Scratch Register 3
1367 case 0x16: // Performance Tuning Register
1368 case 0x18: // Signature Generator Control
1369 case 0x19: // Signature Generator Result
1370 case 0x1a: // Signature Generator Result
1371 case 0x1b: // VCLK 0 Denominator & Post
1372 case 0x1c: // VCLK 1 Denominator & Post
1373 case 0x1d: // VCLK 2 Denominator & Post
1374 case 0x1e: // VCLK 3 Denominator & Post
1375 case 0x1f: // BIOS Write Enable and MCLK select
1376 s->vga.sr[reg_index] = reg_value;
1377 #ifdef DEBUG_CIRRUS
1378 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1379 reg_index, reg_value);
1380 #endif
1381 break;
1382 case 0x17: // Configuration Readback and Extended Control
1383 s->vga.sr[reg_index] = (s->vga.sr[reg_index] & 0x38) | (reg_value & 0xc7);
1384 cirrus_update_memory_access(s);
1385 break;
1386 default:
1387 #ifdef DEBUG_CIRRUS
1388 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1389 reg_value);
1390 #endif
1391 break;
1392 }
1393
1394 return CIRRUS_HOOK_HANDLED;
1395 }
1396
1397 /***************************************
1398 *
1399 * I/O access at 0x3c6
1400 *
1401 ***************************************/
1402
1403 static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1404 {
1405 *reg_value = 0xff;
1406 if (++s->cirrus_hidden_dac_lockindex == 5) {
1407 *reg_value = s->cirrus_hidden_dac_data;
1408 s->cirrus_hidden_dac_lockindex = 0;
1409 }
1410 }
1411
1412 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1413 {
1414 if (s->cirrus_hidden_dac_lockindex == 4) {
1415 s->cirrus_hidden_dac_data = reg_value;
1416 #if defined(DEBUG_CIRRUS)
1417 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1418 #endif
1419 }
1420 s->cirrus_hidden_dac_lockindex = 0;
1421 }
1422
1423 /***************************************
1424 *
1425 * I/O access at 0x3c9
1426 *
1427 ***************************************/
1428
1429 static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1430 {
1431 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1432 return CIRRUS_HOOK_NOT_HANDLED;
1433 *reg_value =
1434 s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1435 s->vga.dac_sub_index];
1436 if (++s->vga.dac_sub_index == 3) {
1437 s->vga.dac_sub_index = 0;
1438 s->vga.dac_read_index++;
1439 }
1440 return CIRRUS_HOOK_HANDLED;
1441 }
1442
1443 static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1444 {
1445 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1446 return CIRRUS_HOOK_NOT_HANDLED;
1447 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1448 if (++s->vga.dac_sub_index == 3) {
1449 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1450 s->vga.dac_cache, 3);
1451 /* XXX update cursor */
1452 s->vga.dac_sub_index = 0;
1453 s->vga.dac_write_index++;
1454 }
1455 return CIRRUS_HOOK_HANDLED;
1456 }
1457
1458 /***************************************
1459 *
1460 * I/O access between 0x3ce-0x3cf
1461 *
1462 ***************************************/
1463
1464 static int
1465 cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1466 {
1467 switch (reg_index) {
1468 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1469 *reg_value = s->cirrus_shadow_gr0;
1470 return CIRRUS_HOOK_HANDLED;
1471 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1472 *reg_value = s->cirrus_shadow_gr1;
1473 return CIRRUS_HOOK_HANDLED;
1474 case 0x02: // Standard VGA
1475 case 0x03: // Standard VGA
1476 case 0x04: // Standard VGA
1477 case 0x06: // Standard VGA
1478 case 0x07: // Standard VGA
1479 case 0x08: // Standard VGA
1480 return CIRRUS_HOOK_NOT_HANDLED;
1481 case 0x05: // Standard VGA, Cirrus extended mode
1482 default:
1483 break;
1484 }
1485
1486 if (reg_index < 0x3a) {
1487 *reg_value = s->vga.gr[reg_index];
1488 } else {
1489 #ifdef DEBUG_CIRRUS
1490 printf("cirrus: inport gr_index %02x\n", reg_index);
1491 #endif
1492 *reg_value = 0xff;
1493 }
1494
1495 return CIRRUS_HOOK_HANDLED;
1496 }
1497
1498 static int
1499 cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1500 {
1501 #if defined(DEBUG_BITBLT) && 0
1502 printf("gr%02x: %02x\n", reg_index, reg_value);
1503 #endif
1504 switch (reg_index) {
1505 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1506 s->cirrus_shadow_gr0 = reg_value;
1507 return CIRRUS_HOOK_NOT_HANDLED;
1508 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1509 s->cirrus_shadow_gr1 = reg_value;
1510 return CIRRUS_HOOK_NOT_HANDLED;
1511 case 0x02: // Standard VGA
1512 case 0x03: // Standard VGA
1513 case 0x04: // Standard VGA
1514 case 0x06: // Standard VGA
1515 case 0x07: // Standard VGA
1516 case 0x08: // Standard VGA
1517 return CIRRUS_HOOK_NOT_HANDLED;
1518 case 0x05: // Standard VGA, Cirrus extended mode
1519 s->vga.gr[reg_index] = reg_value & 0x7f;
1520 cirrus_update_memory_access(s);
1521 break;
1522 case 0x09: // bank offset #0
1523 case 0x0A: // bank offset #1
1524 s->vga.gr[reg_index] = reg_value;
1525 cirrus_update_bank_ptr(s, 0);
1526 cirrus_update_bank_ptr(s, 1);
1527 cirrus_update_memory_access(s);
1528 break;
1529 case 0x0B:
1530 s->vga.gr[reg_index] = reg_value;
1531 cirrus_update_bank_ptr(s, 0);
1532 cirrus_update_bank_ptr(s, 1);
1533 cirrus_update_memory_access(s);
1534 break;
1535 case 0x10: // BGCOLOR 0x0000ff00
1536 case 0x11: // FGCOLOR 0x0000ff00
1537 case 0x12: // BGCOLOR 0x00ff0000
1538 case 0x13: // FGCOLOR 0x00ff0000
1539 case 0x14: // BGCOLOR 0xff000000
1540 case 0x15: // FGCOLOR 0xff000000
1541 case 0x20: // BLT WIDTH 0x0000ff
1542 case 0x22: // BLT HEIGHT 0x0000ff
1543 case 0x24: // BLT DEST PITCH 0x0000ff
1544 case 0x26: // BLT SRC PITCH 0x0000ff
1545 case 0x28: // BLT DEST ADDR 0x0000ff
1546 case 0x29: // BLT DEST ADDR 0x00ff00
1547 case 0x2c: // BLT SRC ADDR 0x0000ff
1548 case 0x2d: // BLT SRC ADDR 0x00ff00
1549 case 0x2f: // BLT WRITEMASK
1550 case 0x30: // BLT MODE
1551 case 0x32: // RASTER OP
1552 case 0x33: // BLT MODEEXT
1553 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1554 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1555 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1556 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1557 s->vga.gr[reg_index] = reg_value;
1558 break;
1559 case 0x21: // BLT WIDTH 0x001f00
1560 case 0x23: // BLT HEIGHT 0x001f00
1561 case 0x25: // BLT DEST PITCH 0x001f00
1562 case 0x27: // BLT SRC PITCH 0x001f00
1563 s->vga.gr[reg_index] = reg_value & 0x1f;
1564 break;
1565 case 0x2a: // BLT DEST ADDR 0x3f0000
1566 s->vga.gr[reg_index] = reg_value & 0x3f;
1567 /* if auto start mode, starts bit blt now */
1568 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1569 cirrus_bitblt_start(s);
1570 }
1571 break;
1572 case 0x2e: // BLT SRC ADDR 0x3f0000
1573 s->vga.gr[reg_index] = reg_value & 0x3f;
1574 break;
1575 case 0x31: // BLT STATUS/START
1576 cirrus_write_bitblt(s, reg_value);
1577 break;
1578 default:
1579 #ifdef DEBUG_CIRRUS
1580 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1581 reg_value);
1582 #endif
1583 break;
1584 }
1585
1586 return CIRRUS_HOOK_HANDLED;
1587 }
1588
1589 /***************************************
1590 *
1591 * I/O access between 0x3d4-0x3d5
1592 *
1593 ***************************************/
1594
1595 static int
1596 cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1597 {
1598 switch (reg_index) {
1599 case 0x00: // Standard VGA
1600 case 0x01: // Standard VGA
1601 case 0x02: // Standard VGA
1602 case 0x03: // Standard VGA
1603 case 0x04: // Standard VGA
1604 case 0x05: // Standard VGA
1605 case 0x06: // Standard VGA
1606 case 0x07: // Standard VGA
1607 case 0x08: // Standard VGA
1608 case 0x09: // Standard VGA
1609 case 0x0a: // Standard VGA
1610 case 0x0b: // Standard VGA
1611 case 0x0c: // Standard VGA
1612 case 0x0d: // Standard VGA
1613 case 0x0e: // Standard VGA
1614 case 0x0f: // Standard VGA
1615 case 0x10: // Standard VGA
1616 case 0x11: // Standard VGA
1617 case 0x12: // Standard VGA
1618 case 0x13: // Standard VGA
1619 case 0x14: // Standard VGA
1620 case 0x15: // Standard VGA
1621 case 0x16: // Standard VGA
1622 case 0x17: // Standard VGA
1623 case 0x18: // Standard VGA
1624 return CIRRUS_HOOK_NOT_HANDLED;
1625 case 0x24: // Attribute Controller Toggle Readback (R)
1626 *reg_value = (s->vga.ar_flip_flop << 7);
1627 break;
1628 case 0x19: // Interlace End
1629 case 0x1a: // Miscellaneous Control
1630 case 0x1b: // Extended Display Control
1631 case 0x1c: // Sync Adjust and Genlock
1632 case 0x1d: // Overlay Extended Control
1633 case 0x22: // Graphics Data Latches Readback (R)
1634 case 0x25: // Part Status
1635 case 0x27: // Part ID (R)
1636 *reg_value = s->vga.cr[reg_index];
1637 break;
1638 case 0x26: // Attribute Controller Index Readback (R)
1639 *reg_value = s->vga.ar_index & 0x3f;
1640 break;
1641 default:
1642 #ifdef DEBUG_CIRRUS
1643 printf("cirrus: inport cr_index %02x\n", reg_index);
1644 *reg_value = 0xff;
1645 #endif
1646 break;
1647 }
1648
1649 return CIRRUS_HOOK_HANDLED;
1650 }
1651
1652 static int
1653 cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1654 {
1655 switch (reg_index) {
1656 case 0x00: // Standard VGA
1657 case 0x01: // Standard VGA
1658 case 0x02: // Standard VGA
1659 case 0x03: // Standard VGA
1660 case 0x04: // Standard VGA
1661 case 0x05: // Standard VGA
1662 case 0x06: // Standard VGA
1663 case 0x07: // Standard VGA
1664 case 0x08: // Standard VGA
1665 case 0x09: // Standard VGA
1666 case 0x0a: // Standard VGA
1667 case 0x0b: // Standard VGA
1668 case 0x0c: // Standard VGA
1669 case 0x0d: // Standard VGA
1670 case 0x0e: // Standard VGA
1671 case 0x0f: // Standard VGA
1672 case 0x10: // Standard VGA
1673 case 0x11: // Standard VGA
1674 case 0x12: // Standard VGA
1675 case 0x13: // Standard VGA
1676 case 0x14: // Standard VGA
1677 case 0x15: // Standard VGA
1678 case 0x16: // Standard VGA
1679 case 0x17: // Standard VGA
1680 case 0x18: // Standard VGA
1681 return CIRRUS_HOOK_NOT_HANDLED;
1682 case 0x19: // Interlace End
1683 case 0x1a: // Miscellaneous Control
1684 case 0x1b: // Extended Display Control
1685 case 0x1c: // Sync Adjust and Genlock
1686 case 0x1d: // Overlay Extended Control
1687 s->vga.cr[reg_index] = reg_value;
1688 #ifdef DEBUG_CIRRUS
1689 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1690 reg_index, reg_value);
1691 #endif
1692 break;
1693 case 0x22: // Graphics Data Latches Readback (R)
1694 case 0x24: // Attribute Controller Toggle Readback (R)
1695 case 0x26: // Attribute Controller Index Readback (R)
1696 case 0x27: // Part ID (R)
1697 break;
1698 case 0x25: // Part Status
1699 default:
1700 #ifdef DEBUG_CIRRUS
1701 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1702 reg_value);
1703 #endif
1704 break;
1705 }
1706
1707 return CIRRUS_HOOK_HANDLED;
1708 }
1709
1710 /***************************************
1711 *
1712 * memory-mapped I/O (bitblt)
1713 *
1714 ***************************************/
1715
1716 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1717 {
1718 int value = 0xff;
1719
1720 switch (address) {
1721 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1722 cirrus_hook_read_gr(s, 0x00, &value);
1723 break;
1724 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1725 cirrus_hook_read_gr(s, 0x10, &value);
1726 break;
1727 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1728 cirrus_hook_read_gr(s, 0x12, &value);
1729 break;
1730 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1731 cirrus_hook_read_gr(s, 0x14, &value);
1732 break;
1733 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1734 cirrus_hook_read_gr(s, 0x01, &value);
1735 break;
1736 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1737 cirrus_hook_read_gr(s, 0x11, &value);
1738 break;
1739 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1740 cirrus_hook_read_gr(s, 0x13, &value);
1741 break;
1742 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1743 cirrus_hook_read_gr(s, 0x15, &value);
1744 break;
1745 case (CIRRUS_MMIO_BLTWIDTH + 0):
1746 cirrus_hook_read_gr(s, 0x20, &value);
1747 break;
1748 case (CIRRUS_MMIO_BLTWIDTH + 1):
1749 cirrus_hook_read_gr(s, 0x21, &value);
1750 break;
1751 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1752 cirrus_hook_read_gr(s, 0x22, &value);
1753 break;
1754 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1755 cirrus_hook_read_gr(s, 0x23, &value);
1756 break;
1757 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1758 cirrus_hook_read_gr(s, 0x24, &value);
1759 break;
1760 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1761 cirrus_hook_read_gr(s, 0x25, &value);
1762 break;
1763 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1764 cirrus_hook_read_gr(s, 0x26, &value);
1765 break;
1766 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1767 cirrus_hook_read_gr(s, 0x27, &value);
1768 break;
1769 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1770 cirrus_hook_read_gr(s, 0x28, &value);
1771 break;
1772 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1773 cirrus_hook_read_gr(s, 0x29, &value);
1774 break;
1775 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1776 cirrus_hook_read_gr(s, 0x2a, &value);
1777 break;
1778 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1779 cirrus_hook_read_gr(s, 0x2c, &value);
1780 break;
1781 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1782 cirrus_hook_read_gr(s, 0x2d, &value);
1783 break;
1784 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1785 cirrus_hook_read_gr(s, 0x2e, &value);
1786 break;
1787 case CIRRUS_MMIO_BLTWRITEMASK:
1788 cirrus_hook_read_gr(s, 0x2f, &value);
1789 break;
1790 case CIRRUS_MMIO_BLTMODE:
1791 cirrus_hook_read_gr(s, 0x30, &value);
1792 break;
1793 case CIRRUS_MMIO_BLTROP:
1794 cirrus_hook_read_gr(s, 0x32, &value);
1795 break;
1796 case CIRRUS_MMIO_BLTMODEEXT:
1797 cirrus_hook_read_gr(s, 0x33, &value);
1798 break;
1799 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1800 cirrus_hook_read_gr(s, 0x34, &value);
1801 break;
1802 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1803 cirrus_hook_read_gr(s, 0x35, &value);
1804 break;
1805 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1806 cirrus_hook_read_gr(s, 0x38, &value);
1807 break;
1808 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1809 cirrus_hook_read_gr(s, 0x39, &value);
1810 break;
1811 case CIRRUS_MMIO_BLTSTATUS:
1812 cirrus_hook_read_gr(s, 0x31, &value);
1813 break;
1814 default:
1815 #ifdef DEBUG_CIRRUS
1816 printf("cirrus: mmio read - address 0x%04x\n", address);
1817 #endif
1818 break;
1819 }
1820
1821 return (uint8_t) value;
1822 }
1823
1824 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1825 uint8_t value)
1826 {
1827 switch (address) {
1828 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1829 cirrus_hook_write_gr(s, 0x00, value);
1830 break;
1831 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1832 cirrus_hook_write_gr(s, 0x10, value);
1833 break;
1834 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1835 cirrus_hook_write_gr(s, 0x12, value);
1836 break;
1837 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1838 cirrus_hook_write_gr(s, 0x14, value);
1839 break;
1840 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1841 cirrus_hook_write_gr(s, 0x01, value);
1842 break;
1843 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1844 cirrus_hook_write_gr(s, 0x11, value);
1845 break;
1846 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1847 cirrus_hook_write_gr(s, 0x13, value);
1848 break;
1849 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1850 cirrus_hook_write_gr(s, 0x15, value);
1851 break;
1852 case (CIRRUS_MMIO_BLTWIDTH + 0):
1853 cirrus_hook_write_gr(s, 0x20, value);
1854 break;
1855 case (CIRRUS_MMIO_BLTWIDTH + 1):
1856 cirrus_hook_write_gr(s, 0x21, value);
1857 break;
1858 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1859 cirrus_hook_write_gr(s, 0x22, value);
1860 break;
1861 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1862 cirrus_hook_write_gr(s, 0x23, value);
1863 break;
1864 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1865 cirrus_hook_write_gr(s, 0x24, value);
1866 break;
1867 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1868 cirrus_hook_write_gr(s, 0x25, value);
1869 break;
1870 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1871 cirrus_hook_write_gr(s, 0x26, value);
1872 break;
1873 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1874 cirrus_hook_write_gr(s, 0x27, value);
1875 break;
1876 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1877 cirrus_hook_write_gr(s, 0x28, value);
1878 break;
1879 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1880 cirrus_hook_write_gr(s, 0x29, value);
1881 break;
1882 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1883 cirrus_hook_write_gr(s, 0x2a, value);
1884 break;
1885 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1886 /* ignored */
1887 break;
1888 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1889 cirrus_hook_write_gr(s, 0x2c, value);
1890 break;
1891 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1892 cirrus_hook_write_gr(s, 0x2d, value);
1893 break;
1894 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1895 cirrus_hook_write_gr(s, 0x2e, value);
1896 break;
1897 case CIRRUS_MMIO_BLTWRITEMASK:
1898 cirrus_hook_write_gr(s, 0x2f, value);
1899 break;
1900 case CIRRUS_MMIO_BLTMODE:
1901 cirrus_hook_write_gr(s, 0x30, value);
1902 break;
1903 case CIRRUS_MMIO_BLTROP:
1904 cirrus_hook_write_gr(s, 0x32, value);
1905 break;
1906 case CIRRUS_MMIO_BLTMODEEXT:
1907 cirrus_hook_write_gr(s, 0x33, value);
1908 break;
1909 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1910 cirrus_hook_write_gr(s, 0x34, value);
1911 break;
1912 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1913 cirrus_hook_write_gr(s, 0x35, value);
1914 break;
1915 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1916 cirrus_hook_write_gr(s, 0x38, value);
1917 break;
1918 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1919 cirrus_hook_write_gr(s, 0x39, value);
1920 break;
1921 case CIRRUS_MMIO_BLTSTATUS:
1922 cirrus_hook_write_gr(s, 0x31, value);
1923 break;
1924 default:
1925 #ifdef DEBUG_CIRRUS
1926 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1927 address, value);
1928 #endif
1929 break;
1930 }
1931 }
1932
1933 /***************************************
1934 *
1935 * write mode 4/5
1936 *
1937 * assume TARGET_PAGE_SIZE >= 16
1938 *
1939 ***************************************/
1940
1941 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1942 unsigned mode,
1943 unsigned offset,
1944 uint32_t mem_value)
1945 {
1946 int x;
1947 unsigned val = mem_value;
1948 uint8_t *dst;
1949
1950 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1951 for (x = 0; x < 8; x++) {
1952 if (val & 0x80) {
1953 *dst = s->cirrus_shadow_gr1;
1954 } else if (mode == 5) {
1955 *dst = s->cirrus_shadow_gr0;
1956 }
1957 val <<= 1;
1958 dst++;
1959 }
1960 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1961 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 7);
1962 }
1963
1964 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1965 unsigned mode,
1966 unsigned offset,
1967 uint32_t mem_value)
1968 {
1969 int x;
1970 unsigned val = mem_value;
1971 uint8_t *dst;
1972
1973 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1974 for (x = 0; x < 8; x++) {
1975 if (val & 0x80) {
1976 *dst = s->cirrus_shadow_gr1;
1977 *(dst + 1) = s->vga.gr[0x11];
1978 } else if (mode == 5) {
1979 *dst = s->cirrus_shadow_gr0;
1980 *(dst + 1) = s->vga.gr[0x10];
1981 }
1982 val <<= 1;
1983 dst += 2;
1984 }
1985 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
1986 cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 15);
1987 }
1988
1989 /***************************************
1990 *
1991 * memory access between 0xa0000-0xbffff
1992 *
1993 ***************************************/
1994
1995 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1996 {
1997 CirrusVGAState *s = opaque;
1998 unsigned bank_index;
1999 unsigned bank_offset;
2000 uint32_t val;
2001
2002 if ((s->vga.sr[0x07] & 0x01) == 0) {
2003 return vga_mem_readb(s, addr);
2004 }
2005
2006 addr &= 0x1ffff;
2007
2008 if (addr < 0x10000) {
2009 /* XXX handle bitblt */
2010 /* video memory */
2011 bank_index = addr >> 15;
2012 bank_offset = addr & 0x7fff;
2013 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2014 bank_offset += s->cirrus_bank_base[bank_index];
2015 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2016 bank_offset <<= 4;
2017 } else if (s->vga.gr[0x0B] & 0x02) {
2018 bank_offset <<= 3;
2019 }
2020 bank_offset &= s->cirrus_addr_mask;
2021 val = *(s->vga.vram_ptr + bank_offset);
2022 } else
2023 val = 0xff;
2024 } else if (addr >= 0x18000 && addr < 0x18100) {
2025 /* memory-mapped I/O */
2026 val = 0xff;
2027 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2028 val = cirrus_mmio_blt_read(s, addr & 0xff);
2029 }
2030 } else {
2031 val = 0xff;
2032 #ifdef DEBUG_CIRRUS
2033 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
2034 #endif
2035 }
2036 return val;
2037 }
2038
2039 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2040 {
2041 uint32_t v;
2042 #ifdef TARGET_WORDS_BIGENDIAN
2043 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2044 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2045 #else
2046 v = cirrus_vga_mem_readb(opaque, addr);
2047 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2048 #endif
2049 return v;
2050 }
2051
2052 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2053 {
2054 uint32_t v;
2055 #ifdef TARGET_WORDS_BIGENDIAN
2056 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2057 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2058 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2059 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2060 #else
2061 v = cirrus_vga_mem_readb(opaque, addr);
2062 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2063 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2064 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2065 #endif
2066 return v;
2067 }
2068
2069 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2070 uint32_t mem_value)
2071 {
2072 CirrusVGAState *s = opaque;
2073 unsigned bank_index;
2074 unsigned bank_offset;
2075 unsigned mode;
2076
2077 if ((s->vga.sr[0x07] & 0x01) == 0) {
2078 vga_mem_writeb(s, addr, mem_value);
2079 return;
2080 }
2081
2082 addr &= 0x1ffff;
2083
2084 if (addr < 0x10000) {
2085 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2086 /* bitblt */
2087 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2088 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2089 cirrus_bitblt_cputovideo_next(s);
2090 }
2091 } else {
2092 /* video memory */
2093 bank_index = addr >> 15;
2094 bank_offset = addr & 0x7fff;
2095 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2096 bank_offset += s->cirrus_bank_base[bank_index];
2097 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2098 bank_offset <<= 4;
2099 } else if (s->vga.gr[0x0B] & 0x02) {
2100 bank_offset <<= 3;
2101 }
2102 bank_offset &= s->cirrus_addr_mask;
2103 mode = s->vga.gr[0x05] & 0x7;
2104 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2105 *(s->vga.vram_ptr + bank_offset) = mem_value;
2106 cpu_physical_memory_set_dirty(s->vga.vram_offset +
2107 bank_offset);
2108 } else {
2109 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2110 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2111 bank_offset,
2112 mem_value);
2113 } else {
2114 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2115 bank_offset,
2116 mem_value);
2117 }
2118 }
2119 }
2120 }
2121 } else if (addr >= 0x18000 && addr < 0x18100) {
2122 /* memory-mapped I/O */
2123 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2124 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2125 }
2126 } else {
2127 #ifdef DEBUG_CIRRUS
2128 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2129 mem_value);
2130 #endif
2131 }
2132 }
2133
2134 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2135 {
2136 #ifdef TARGET_WORDS_BIGENDIAN
2137 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2138 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2139 #else
2140 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2141 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2142 #endif
2143 }
2144
2145 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2146 {
2147 #ifdef TARGET_WORDS_BIGENDIAN
2148 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2149 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2150 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2151 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2152 #else
2153 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2154 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2155 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2156 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2157 #endif
2158 }
2159
2160 static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
2161 cirrus_vga_mem_readb,
2162 cirrus_vga_mem_readw,
2163 cirrus_vga_mem_readl,
2164 };
2165
2166 static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
2167 cirrus_vga_mem_writeb,
2168 cirrus_vga_mem_writew,
2169 cirrus_vga_mem_writel,
2170 };
2171
2172 /***************************************
2173 *
2174 * hardware cursor
2175 *
2176 ***************************************/
2177
2178 static inline void invalidate_cursor1(CirrusVGAState *s)
2179 {
2180 if (s->last_hw_cursor_size) {
2181 vga_invalidate_scanlines(&s->vga,
2182 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2183 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2184 }
2185 }
2186
2187 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2188 {
2189 const uint8_t *src;
2190 uint32_t content;
2191 int y, y_min, y_max;
2192
2193 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2194 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2195 src += (s->vga.sr[0x13] & 0x3c) * 256;
2196 y_min = 64;
2197 y_max = -1;
2198 for(y = 0; y < 64; y++) {
2199 content = ((uint32_t *)src)[0] |
2200 ((uint32_t *)src)[1] |
2201 ((uint32_t *)src)[2] |
2202 ((uint32_t *)src)[3];
2203 if (content) {
2204 if (y < y_min)
2205 y_min = y;
2206 if (y > y_max)
2207 y_max = y;
2208 }
2209 src += 16;
2210 }
2211 } else {
2212 src += (s->vga.sr[0x13] & 0x3f) * 256;
2213 y_min = 32;
2214 y_max = -1;
2215 for(y = 0; y < 32; y++) {
2216 content = ((uint32_t *)src)[0] |
2217 ((uint32_t *)(src + 128))[0];
2218 if (content) {
2219 if (y < y_min)
2220 y_min = y;
2221 if (y > y_max)
2222 y_max = y;
2223 }
2224 src += 4;
2225 }
2226 }
2227 if (y_min > y_max) {
2228 s->last_hw_cursor_y_start = 0;
2229 s->last_hw_cursor_y_end = 0;
2230 } else {
2231 s->last_hw_cursor_y_start = y_min;
2232 s->last_hw_cursor_y_end = y_max + 1;
2233 }
2234 }
2235
2236 /* NOTE: we do not currently handle the cursor bitmap change, so we
2237 update the cursor only if it moves. */
2238 static void cirrus_cursor_invalidate(VGAState *s1)
2239 {
2240 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2241 int size;
2242
2243 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2244 size = 0;
2245 } else {
2246 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2247 size = 64;
2248 else
2249 size = 32;
2250 }
2251 /* invalidate last cursor and new cursor if any change */
2252 if (s->last_hw_cursor_size != size ||
2253 s->last_hw_cursor_x != s->hw_cursor_x ||
2254 s->last_hw_cursor_y != s->hw_cursor_y) {
2255
2256 invalidate_cursor1(s);
2257
2258 s->last_hw_cursor_size = size;
2259 s->last_hw_cursor_x = s->hw_cursor_x;
2260 s->last_hw_cursor_y = s->hw_cursor_y;
2261 /* compute the real cursor min and max y */
2262 cirrus_cursor_compute_yrange(s);
2263 invalidate_cursor1(s);
2264 }
2265 }
2266
2267 static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2268 {
2269 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2270 int w, h, bpp, x1, x2, poffset;
2271 unsigned int color0, color1;
2272 const uint8_t *palette, *src;
2273 uint32_t content;
2274
2275 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2276 return;
2277 /* fast test to see if the cursor intersects with the scan line */
2278 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2279 h = 64;
2280 } else {
2281 h = 32;
2282 }
2283 if (scr_y < s->hw_cursor_y ||
2284 scr_y >= (s->hw_cursor_y + h))
2285 return;
2286
2287 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2288 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2289 src += (s->vga.sr[0x13] & 0x3c) * 256;
2290 src += (scr_y - s->hw_cursor_y) * 16;
2291 poffset = 8;
2292 content = ((uint32_t *)src)[0] |
2293 ((uint32_t *)src)[1] |
2294 ((uint32_t *)src)[2] |
2295 ((uint32_t *)src)[3];
2296 } else {
2297 src += (s->vga.sr[0x13] & 0x3f) * 256;
2298 src += (scr_y - s->hw_cursor_y) * 4;
2299 poffset = 128;
2300 content = ((uint32_t *)src)[0] |
2301 ((uint32_t *)(src + 128))[0];
2302 }
2303 /* if nothing to draw, no need to continue */
2304 if (!content)
2305 return;
2306 w = h;
2307
2308 x1 = s->hw_cursor_x;
2309 if (x1 >= s->vga.last_scr_width)
2310 return;
2311 x2 = s->hw_cursor_x + w;
2312 if (x2 > s->vga.last_scr_width)
2313 x2 = s->vga.last_scr_width;
2314 w = x2 - x1;
2315 palette = s->cirrus_hidden_palette;
2316 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2317 c6_to_8(palette[0x0 * 3 + 1]),
2318 c6_to_8(palette[0x0 * 3 + 2]));
2319 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2320 c6_to_8(palette[0xf * 3 + 1]),
2321 c6_to_8(palette[0xf * 3 + 2]));
2322 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2323 d1 += x1 * bpp;
2324 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2325 default:
2326 break;
2327 case 8:
2328 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2329 break;
2330 case 15:
2331 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2332 break;
2333 case 16:
2334 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2335 break;
2336 case 32:
2337 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2338 break;
2339 }
2340 }
2341
2342 /***************************************
2343 *
2344 * LFB memory access
2345 *
2346 ***************************************/
2347
2348 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2349 {
2350 CirrusVGAState *s = (CirrusVGAState *) opaque;
2351 uint32_t ret;
2352
2353 addr &= s->cirrus_addr_mask;
2354
2355 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2356 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2357 /* memory-mapped I/O */
2358 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2359 } else if (0) {
2360 /* XXX handle bitblt */
2361 ret = 0xff;
2362 } else {
2363 /* video memory */
2364 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2365 addr <<= 4;
2366 } else if (s->vga.gr[0x0B] & 0x02) {
2367 addr <<= 3;
2368 }
2369 addr &= s->cirrus_addr_mask;
2370 ret = *(s->vga.vram_ptr + addr);
2371 }
2372
2373 return ret;
2374 }
2375
2376 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2377 {
2378 uint32_t v;
2379 #ifdef TARGET_WORDS_BIGENDIAN
2380 v = cirrus_linear_readb(opaque, addr) << 8;
2381 v |= cirrus_linear_readb(opaque, addr + 1);
2382 #else
2383 v = cirrus_linear_readb(opaque, addr);
2384 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2385 #endif
2386 return v;
2387 }
2388
2389 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2390 {
2391 uint32_t v;
2392 #ifdef TARGET_WORDS_BIGENDIAN
2393 v = cirrus_linear_readb(opaque, addr) << 24;
2394 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2395 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2396 v |= cirrus_linear_readb(opaque, addr + 3);
2397 #else
2398 v = cirrus_linear_readb(opaque, addr);
2399 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2400 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2401 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2402 #endif
2403 return v;
2404 }
2405
2406 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2407 uint32_t val)
2408 {
2409 CirrusVGAState *s = (CirrusVGAState *) opaque;
2410 unsigned mode;
2411
2412 addr &= s->cirrus_addr_mask;
2413
2414 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2415 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2416 /* memory-mapped I/O */
2417 cirrus_mmio_blt_write(s, addr & 0xff, val);
2418 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2419 /* bitblt */
2420 *s->cirrus_srcptr++ = (uint8_t) val;
2421 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2422 cirrus_bitblt_cputovideo_next(s);
2423 }
2424 } else {
2425 /* video memory */
2426 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2427 addr <<= 4;
2428 } else if (s->vga.gr[0x0B] & 0x02) {
2429 addr <<= 3;
2430 }
2431 addr &= s->cirrus_addr_mask;
2432
2433 mode = s->vga.gr[0x05] & 0x7;
2434 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2435 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2436 cpu_physical_memory_set_dirty(s->vga.vram_offset + addr);
2437 } else {
2438 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2439 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2440 } else {
2441 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2442 }
2443 }
2444 }
2445 }
2446
2447 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2448 uint32_t val)
2449 {
2450 #ifdef TARGET_WORDS_BIGENDIAN
2451 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2452 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2453 #else
2454 cirrus_linear_writeb(opaque, addr, val & 0xff);
2455 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2456 #endif
2457 }
2458
2459 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2460 uint32_t val)
2461 {
2462 #ifdef TARGET_WORDS_BIGENDIAN
2463 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2464 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2465 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2466 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2467 #else
2468 cirrus_linear_writeb(opaque, addr, val & 0xff);
2469 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2470 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2471 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2472 #endif
2473 }
2474
2475
2476 static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2477 cirrus_linear_readb,
2478 cirrus_linear_readw,
2479 cirrus_linear_readl,
2480 };
2481
2482 static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2483 cirrus_linear_writeb,
2484 cirrus_linear_writew,
2485 cirrus_linear_writel,
2486 };
2487
2488 /***************************************
2489 *
2490 * system to screen memory access
2491 *
2492 ***************************************/
2493
2494
2495 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2496 {
2497 uint32_t ret;
2498
2499 /* XXX handle bitblt */
2500 ret = 0xff;
2501 return ret;
2502 }
2503
2504 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2505 {
2506 uint32_t v;
2507 #ifdef TARGET_WORDS_BIGENDIAN
2508 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2509 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2510 #else
2511 v = cirrus_linear_bitblt_readb(opaque, addr);
2512 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2513 #endif
2514 return v;
2515 }
2516
2517 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2518 {
2519 uint32_t v;
2520 #ifdef TARGET_WORDS_BIGENDIAN
2521 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2522 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2523 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2524 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2525 #else
2526 v = cirrus_linear_bitblt_readb(opaque, addr);
2527 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2528 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2529 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2530 #endif
2531 return v;
2532 }
2533
2534 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2535 uint32_t val)
2536 {
2537 CirrusVGAState *s = (CirrusVGAState *) opaque;
2538
2539 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2540 /* bitblt */
2541 *s->cirrus_srcptr++ = (uint8_t) val;
2542 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2543 cirrus_bitblt_cputovideo_next(s);
2544 }
2545 }
2546 }
2547
2548 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2549 uint32_t val)
2550 {
2551 #ifdef TARGET_WORDS_BIGENDIAN
2552 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2553 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2554 #else
2555 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2556 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2557 #endif
2558 }
2559
2560 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2561 uint32_t val)
2562 {
2563 #ifdef TARGET_WORDS_BIGENDIAN
2564 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2565 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2566 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2567 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2568 #else
2569 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2570 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2571 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2572 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2573 #endif
2574 }
2575
2576
2577 static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2578 cirrus_linear_bitblt_readb,
2579 cirrus_linear_bitblt_readw,
2580 cirrus_linear_bitblt_readl,
2581 };
2582
2583 static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2584 cirrus_linear_bitblt_writeb,
2585 cirrus_linear_bitblt_writew,
2586 cirrus_linear_bitblt_writel,
2587 };
2588
2589 static void map_linear_vram(CirrusVGAState *s)
2590 {
2591 vga_dirty_log_stop(&s->vga);
2592 if (!s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
2593 s->vga.map_addr = s->vga.lfb_addr;
2594 s->vga.map_end = s->vga.lfb_end;
2595 cpu_register_physical_memory(s->vga.map_addr, s->vga.map_end - s->vga.map_addr, s->vga.vram_offset);
2596 }
2597
2598 if (!s->vga.map_addr)
2599 return;
2600
2601 #ifndef TARGET_IA64
2602 s->vga.lfb_vram_mapped = 0;
2603
2604 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2605 (s->vga.vram_offset + s->cirrus_bank_base[0]) | IO_MEM_UNASSIGNED);
2606 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2607 (s->vga.vram_offset + s->cirrus_bank_base[1]) | IO_MEM_UNASSIGNED);
2608 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2609 && !((s->vga.sr[0x07] & 0x01) == 0)
2610 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2611 && !(s->vga.gr[0x0B] & 0x02)) {
2612
2613 vga_dirty_log_stop((VGAState *)s);
2614 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2615 (s->vga.vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2616 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2617 (s->vga.vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2618
2619 s->vga.lfb_vram_mapped = 1;
2620 }
2621 else {
2622 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2623 s->vga.vga_io_memory);
2624 }
2625 #endif
2626
2627 vga_dirty_log_start(&s->vga);
2628 }
2629
2630 static void unmap_linear_vram(CirrusVGAState *s)
2631 {
2632 vga_dirty_log_stop(&s->vga);
2633 if (s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end)
2634 s->vga.map_addr = s->vga.map_end = 0;
2635
2636 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2637 s->vga.vga_io_memory);
2638
2639 vga_dirty_log_start(&s->vga);
2640 }
2641
2642 /* Compute the memory access functions */
2643 static void cirrus_update_memory_access(CirrusVGAState *s)
2644 {
2645 unsigned mode;
2646
2647 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2648 goto generic_io;
2649 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2650 goto generic_io;
2651 } else {
2652 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2653 goto generic_io;
2654 } else if (s->vga.gr[0x0B] & 0x02) {
2655 goto generic_io;
2656 }
2657
2658 mode = s->vga.gr[0x05] & 0x7;
2659 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2660 map_linear_vram(s);
2661 } else {
2662 generic_io:
2663 unmap_linear_vram(s);
2664 }
2665 }
2666 }
2667
2668
2669 /* I/O ports */
2670
2671 static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2672 {
2673 CirrusVGAState *s = opaque;
2674 int val, index;
2675
2676 /* check port range access depending on color/monochrome mode */
2677 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->vga.msr & MSR_COLOR_EMULATION))
2678 || (addr >= 0x3d0 && addr <= 0x3df
2679 && !(s->vga.msr & MSR_COLOR_EMULATION))) {
2680 val = 0xff;
2681 } else {
2682 switch (addr) {
2683 case 0x3c0:
2684 if (s->vga.ar_flip_flop == 0) {
2685 val = s->vga.ar_index;
2686 } else {
2687 val = 0;
2688 }
2689 break;
2690 case 0x3c1:
2691 index = s->vga.ar_index & 0x1f;
2692 if (index < 21)
2693 val = s->vga.ar[index];
2694 else
2695 val = 0;
2696 break;
2697 case 0x3c2:
2698 val = s->vga.st00;
2699 break;
2700 case 0x3c4:
2701 val = s->vga.sr_index;
2702 break;
2703 case 0x3c5:
2704 if (cirrus_hook_read_sr(s, s->vga.sr_index, &val))
2705 break;
2706 val = s->vga.sr[s->vga.sr_index];
2707 #ifdef DEBUG_VGA_REG
2708 printf("vga: read SR%x = 0x%02x\n", s->vga.sr_index, val);
2709 #endif
2710 break;
2711 case 0x3c6:
2712 cirrus_read_hidden_dac(s, &val);
2713 break;
2714 case 0x3c7:
2715 val = s->vga.dac_state;
2716 break;
2717 case 0x3c8:
2718 val = s->vga.dac_write_index;
2719 s->cirrus_hidden_dac_lockindex = 0;
2720 break;
2721 case 0x3c9:
2722 if (cirrus_hook_read_palette(s, &val))
2723 break;
2724 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
2725 if (++s->vga.dac_sub_index == 3) {
2726 s->vga.dac_sub_index = 0;
2727 s->vga.dac_read_index++;
2728 }
2729 break;
2730 case 0x3ca:
2731 val = s->vga.fcr;
2732 break;
2733 case 0x3cc:
2734 val = s->vga.msr;
2735 break;
2736 case 0x3ce:
2737 val = s->vga.gr_index;
2738 break;
2739 case 0x3cf:
2740 if (cirrus_hook_read_gr(s, s->vga.gr_index, &val))
2741 break;
2742 val = s->vga.gr[s->vga.gr_index];
2743 #ifdef DEBUG_VGA_REG
2744 printf("vga: read GR%x = 0x%02x\n", s->vga.gr_index, val);
2745 #endif
2746 break;
2747 case 0x3b4:
2748 case 0x3d4:
2749 val = s->vga.cr_index;
2750 break;
2751 case 0x3b5:
2752 case 0x3d5:
2753 if (cirrus_hook_read_cr(s, s->vga.cr_index, &val))
2754 break;
2755 val = s->vga.cr[s->vga.cr_index];
2756 #ifdef DEBUG_VGA_REG
2757 printf("vga: read CR%x = 0x%02x\n", s->vga.cr_index, val);
2758 #endif
2759 break;
2760 case 0x3ba:
2761 case 0x3da:
2762 /* just toggle to fool polling */
2763 val = s->vga.st01 = s->vga.retrace(&s->vga);
2764 s->vga.ar_flip_flop = 0;
2765 break;
2766 default:
2767 val = 0x00;
2768 break;
2769 }
2770 }
2771 #if defined(DEBUG_VGA)
2772 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2773 #endif
2774 return val;
2775 }
2776
2777 static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2778 {
2779 CirrusVGAState *s = opaque;
2780 int index;
2781
2782 /* check port range access depending on color/monochrome mode */
2783 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->vga.msr & MSR_COLOR_EMULATION))
2784 || (addr >= 0x3d0 && addr <= 0x3df
2785 && !(s->vga.msr & MSR_COLOR_EMULATION)))
2786 return;
2787
2788 #ifdef DEBUG_VGA
2789 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2790 #endif
2791
2792 switch (addr) {
2793 case 0x3c0:
2794 if (s->vga.ar_flip_flop == 0) {
2795 val &= 0x3f;
2796 s->vga.ar_index = val;
2797 } else {
2798 index = s->vga.ar_index & 0x1f;
2799 switch (index) {
2800 case 0x00 ... 0x0f:
2801 s->vga.ar[index] = val & 0x3f;
2802 break;
2803 case 0x10:
2804 s->vga.ar[index] = val & ~0x10;
2805 break;
2806 case 0x11:
2807 s->vga.ar[index] = val;
2808 break;
2809 case 0x12:
2810 s->vga.ar[index] = val & ~0xc0;
2811 break;
2812 case 0x13:
2813 s->vga.ar[index] = val & ~0xf0;
2814 break;
2815 case 0x14:
2816 s->vga.ar[index] = val & ~0xf0;
2817 break;
2818 default:
2819 break;
2820 }
2821 }
2822 s->vga.ar_flip_flop ^= 1;
2823 break;
2824 case 0x3c2:
2825 s->vga.msr = val & ~0x10;
2826 s->vga.update_retrace_info(&s->vga);
2827 break;
2828 case 0x3c4:
2829 s->vga.sr_index = val;
2830 break;
2831 case 0x3c5:
2832 if (cirrus_hook_write_sr(s, s->vga.sr_index, val))
2833 break;
2834 #ifdef DEBUG_VGA_REG
2835 printf("vga: write SR%x = 0x%02x\n", s->vga.sr_index, val);
2836 #endif
2837 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
2838 if (s->vga.sr_index == 1) s->vga.update_retrace_info(&s->vga);
2839 break;
2840 case 0x3c6:
2841 cirrus_write_hidden_dac(s, val);
2842 break;
2843 case 0x3c7:
2844 s->vga.dac_read_index = val;
2845 s->vga.dac_sub_index = 0;
2846 s->vga.dac_state = 3;
2847 break;
2848 case 0x3c8:
2849 s->vga.dac_write_index = val;
2850 s->vga.dac_sub_index = 0;
2851 s->vga.dac_state = 0;
2852 break;
2853 case 0x3c9:
2854 if (cirrus_hook_write_palette(s, val))
2855 break;
2856 s->vga.dac_cache[s->vga.dac_sub_index] = val;
2857 if (++s->vga.dac_sub_index == 3) {
2858 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
2859 s->vga.dac_sub_index = 0;
2860 s->vga.dac_write_index++;
2861 }
2862 break;
2863 case 0x3ce:
2864 s->vga.gr_index = val;
2865 break;
2866 case 0x3cf:
2867 if (cirrus_hook_write_gr(s, s->vga.gr_index, val))
2868 break;
2869 #ifdef DEBUG_VGA_REG
2870 printf("vga: write GR%x = 0x%02x\n", s->vga.gr_index, val);
2871 #endif
2872 s->vga.gr[s->vga.gr_index] = val & gr_mask[s->vga.gr_index];
2873 break;
2874 case 0x3b4:
2875 case 0x3d4:
2876 s->vga.cr_index = val;
2877 break;
2878 case 0x3b5:
2879 case 0x3d5:
2880 if (cirrus_hook_write_cr(s, s->vga.cr_index, val))
2881 break;
2882 #ifdef DEBUG_VGA_REG
2883 printf("vga: write CR%x = 0x%02x\n", s->vga.cr_index, val);
2884 #endif
2885 /* handle CR0-7 protection */
2886 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
2887 /* can always write bit 4 of CR7 */
2888 if (s->vga.cr_index == 7)
2889 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (val & 0x10);
2890 return;
2891 }
2892 switch (s->vga.cr_index) {
2893 case 0x01: /* horizontal display end */
2894 case 0x07:
2895 case 0x09:
2896 case 0x0c:
2897 case 0x0d:
2898 case 0x12: /* vertical display end */
2899 s->vga.cr[s->vga.cr_index] = val;
2900 break;
2901
2902 default:
2903 s->vga.cr[s->vga.cr_index] = val;
2904 break;
2905 }
2906
2907 switch(s->vga.cr_index) {
2908 case 0x00:
2909 case 0x04:
2910 case 0x05:
2911 case 0x06:
2912 case 0x07:
2913 case 0x11:
2914 case 0x17:
2915 s->vga.update_retrace_info(&s->vga);
2916 break;
2917 }
2918 break;
2919 case 0x3ba:
2920 case 0x3da:
2921 s->vga.fcr = val & 0x10;
2922 break;
2923 }
2924 }
2925
2926 /***************************************
2927 *
2928 * memory-mapped I/O access
2929 *
2930 ***************************************/
2931
2932 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2933 {
2934 CirrusVGAState *s = (CirrusVGAState *) opaque;
2935
2936 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2937
2938 if (addr >= 0x100) {
2939 return cirrus_mmio_blt_read(s, addr - 0x100);
2940 } else {
2941 return vga_ioport_read(s, addr + 0x3c0);
2942 }
2943 }
2944
2945 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2946 {
2947 uint32_t v;
2948 #ifdef TARGET_WORDS_BIGENDIAN
2949 v = cirrus_mmio_readb(opaque, addr) << 8;
2950 v |= cirrus_mmio_readb(opaque, addr + 1);
2951 #else
2952 v = cirrus_mmio_readb(opaque, addr);
2953 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2954 #endif
2955 return v;
2956 }
2957
2958 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2959 {
2960 uint32_t v;
2961 #ifdef TARGET_WORDS_BIGENDIAN
2962 v = cirrus_mmio_readb(opaque, addr) << 24;
2963 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2964 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2965 v |= cirrus_mmio_readb(opaque, addr + 3);
2966 #else
2967 v = cirrus_mmio_readb(opaque, addr);
2968 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2969 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2970 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2971 #endif
2972 return v;
2973 }
2974
2975 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2976 uint32_t val)
2977 {
2978 CirrusVGAState *s = (CirrusVGAState *) opaque;
2979
2980 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2981
2982 if (addr >= 0x100) {
2983 cirrus_mmio_blt_write(s, addr - 0x100, val);
2984 } else {
2985 vga_ioport_write(s, addr + 0x3c0, val);
2986 }
2987 }
2988
2989 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2990 uint32_t val)
2991 {
2992 #ifdef TARGET_WORDS_BIGENDIAN
2993 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2994 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2995 #else
2996 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2997 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2998 #endif
2999 }
3000
3001 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
3002 uint32_t val)
3003 {
3004 #ifdef TARGET_WORDS_BIGENDIAN
3005 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
3006 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
3007 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
3008 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
3009 #else
3010 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3011 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3012 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
3013 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
3014 #endif
3015 }
3016
3017
3018 static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
3019 cirrus_mmio_readb,
3020 cirrus_mmio_readw,
3021 cirrus_mmio_readl,
3022 };
3023
3024 static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
3025 cirrus_mmio_writeb,
3026 cirrus_mmio_writew,
3027 cirrus_mmio_writel,
3028 };
3029
3030 /* load/save state */
3031
3032 static void cirrus_vga_save(QEMUFile *f, void *opaque)
3033 {
3034 CirrusVGAState *s = opaque;
3035
3036 if (s->vga.pci_dev)
3037 pci_device_save(s->vga.pci_dev, f);
3038
3039 qemu_put_be32s(f, &s->vga.latch);
3040 qemu_put_8s(f, &s->vga.sr_index);
3041 qemu_put_buffer(f, s->vga.sr, 256);
3042 qemu_put_8s(f, &s->vga.gr_index);
3043 qemu_put_8s(f, &s->cirrus_shadow_gr0);
3044 qemu_put_8s(f, &s->cirrus_shadow_gr1);
3045 qemu_put_buffer(f, s->vga.gr + 2, 254);
3046 qemu_put_8s(f, &s->vga.ar_index);
3047 qemu_put_buffer(f, s->vga.ar, 21);
3048 qemu_put_be32(f, s->vga.ar_flip_flop);
3049 qemu_put_8s(f, &s->vga.cr_index);
3050 qemu_put_buffer(f, s->vga.cr, 256);
3051 qemu_put_8s(f, &s->vga.msr);
3052 qemu_put_8s(f, &s->vga.fcr);
3053 qemu_put_8s(f, &s->vga.st00);
3054 qemu_put_8s(f, &s->vga.st01);
3055
3056 qemu_put_8s(f, &s->vga.dac_state);
3057 qemu_put_8s(f, &s->vga.dac_sub_index);
3058 qemu_put_8s(f, &s->vga.dac_read_index);
3059 qemu_put_8s(f, &s->vga.dac_write_index);
3060 qemu_put_buffer(f, s->vga.dac_cache, 3);
3061 qemu_put_buffer(f, s->vga.palette, 768);
3062
3063 qemu_put_be32(f, s->vga.bank_offset);
3064
3065 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
3066 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
3067
3068 qemu_put_be32s(f, &s->hw_cursor_x);
3069 qemu_put_be32s(f, &s->hw_cursor_y);
3070 /* XXX: we do not save the bitblt state - we assume we do not save
3071 the state when the blitter is active */
3072 }
3073
3074 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3075 {
3076 CirrusVGAState *s = opaque;
3077 int ret;
3078
3079 if (version_id > 2)
3080 return -EINVAL;
3081
3082 if (s->vga.pci_dev && version_id >= 2) {
3083 ret = pci_device_load(s->vga.pci_dev, f);
3084 if (ret < 0)
3085 return ret;
3086 }
3087
3088 qemu_get_be32s(f, &s->vga.latch);
3089 qemu_get_8s(f, &s->vga.sr_index);
3090 qemu_get_buffer(f, s->vga.sr, 256);
3091 qemu_get_8s(f, &s->vga.gr_index);
3092 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3093 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3094 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3095 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3096 qemu_get_buffer(f, s->vga.gr + 2, 254);
3097 qemu_get_8s(f, &s->vga.ar_index);
3098 qemu_get_buffer(f, s->vga.ar, 21);
3099 s->vga.ar_flip_flop=qemu_get_be32(f);
3100 qemu_get_8s(f, &s->vga.cr_index);
3101 qemu_get_buffer(f, s->vga.cr, 256);
3102 qemu_get_8s(f, &s->vga.msr);
3103 qemu_get_8s(f, &s->vga.fcr);
3104 qemu_get_8s(f, &s->vga.st00);
3105 qemu_get_8s(f, &s->vga.st01);
3106
3107 qemu_get_8s(f, &s->vga.dac_state);
3108 qemu_get_8s(f, &s->vga.dac_sub_index);
3109 qemu_get_8s(f, &s->vga.dac_read_index);
3110 qemu_get_8s(f, &s->vga.dac_write_index);
3111 qemu_get_buffer(f, s->vga.dac_cache, 3);
3112 qemu_get_buffer(f, s->vga.palette, 768);
3113
3114 s->vga.bank_offset = qemu_get_be32(f);
3115
3116 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3117 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3118
3119 qemu_get_be32s(f, &s->hw_cursor_x);
3120 qemu_get_be32s(f, &s->hw_cursor_y);
3121
3122 cirrus_update_memory_access(s);
3123 /* force refresh */
3124 s->vga.graphic_mode = -1;
3125 cirrus_update_bank_ptr(s, 0);
3126 cirrus_update_bank_ptr(s, 1);
3127 return 0;
3128 }
3129
3130 /***************************************
3131 *
3132 * initialize
3133 *
3134 ***************************************/
3135
3136 static void cirrus_reset(void *opaque)
3137 {
3138 CirrusVGAState *s = opaque;
3139
3140 vga_reset(s);
3141 unmap_linear_vram(s);
3142 s->vga.sr[0x06] = 0x0f;
3143 if (s->device_id == CIRRUS_ID_CLGD5446) {
3144 /* 4MB 64 bit memory config, always PCI */
3145 s->vga.sr[0x1F] = 0x2d; // MemClock
3146 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
3147 s->vga.sr[0x0f] = 0x98;
3148 s->vga.sr[0x17] = 0x20;
3149 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3150 } else {
3151 s->vga.sr[0x1F] = 0x22; // MemClock
3152 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
3153 s->vga.sr[0x17] = s->bustype;
3154 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3155 }
3156 s->vga.cr[0x27] = s->device_id;
3157
3158 /* Win2K seems to assume that the pattern buffer is at 0xff
3159 initially ! */
3160 memset(s->vga.vram_ptr, 0xff, s->real_vram_size);
3161
3162 s->cirrus_hidden_dac_lockindex = 5;
3163 s->cirrus_hidden_dac_data = 0;
3164 }
3165
3166 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3167 {
3168 int i;
3169 static int inited;
3170
3171 if (!inited) {
3172 inited = 1;
3173 for(i = 0;i < 256; i++)
3174 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3175 rop_to_index[CIRRUS_ROP_0] = 0;
3176 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3177 rop_to_index[CIRRUS_ROP_NOP] = 2;
3178 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3179 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3180 rop_to_index[CIRRUS_ROP_SRC] = 5;
3181 rop_to_index[CIRRUS_ROP_1] = 6;
3182 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3183 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3184 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3185 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3186 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3187 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3188 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3189 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3190 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3191 s->device_id = device_id;
3192 if (is_pci)
3193 s->bustype = CIRRUS_BUSTYPE_PCI;
3194 else
3195 s->bustype = CIRRUS_BUSTYPE_ISA;
3196 }
3197
3198 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
3199
3200 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
3201 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
3202 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
3203 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
3204
3205 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
3206
3207 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
3208 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
3209 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
3210 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
3211
3212 s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
3213 cirrus_vga_mem_write, s);
3214 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3215 s->vga.vga_io_memory);
3216 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3217
3218 /* I/O handler for LFB */
3219 s->cirrus_linear_io_addr =
3220 cpu_register_io_memory(cirrus_linear_read, cirrus_linear_write, s);
3221
3222 /* I/O handler for LFB */
3223 s->cirrus_linear_bitblt_io_addr =
3224 cpu_register_io_memory(cirrus_linear_bitblt_read,
3225 cirrus_linear_bitblt_write, s);
3226
3227 /* I/O handler for memory-mapped I/O */
3228 s->cirrus_mmio_io_addr =
3229 cpu_register_io_memory(cirrus_mmio_read, cirrus_mmio_write, s);
3230
3231 s->real_vram_size =
3232 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
3233
3234 /* XXX: s->vga.vram_size must be a power of two */
3235 s->cirrus_addr_mask = s->real_vram_size - 1;
3236 s->linear_mmio_mask = s->real_vram_size - 256;
3237
3238 s->vga.get_bpp = cirrus_get_bpp;
3239 s->vga.get_offsets = cirrus_get_offsets;
3240 s->vga.get_resolution = cirrus_get_resolution;
3241 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
3242 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
3243
3244 qemu_register_reset(cirrus_reset, s);
3245 cirrus_reset(s);
3246 register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
3247 }
3248
3249 /***************************************
3250 *
3251 * ISA bus support
3252 *
3253 ***************************************/
3254
3255 void isa_cirrus_vga_init(void)
3256 {
3257 CirrusVGAState *s;
3258
3259 s = qemu_mallocz(sizeof(CirrusVGAState));
3260
3261 vga_common_init(&s->vga, VGA_RAM_SIZE);
3262 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3263 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3264 s->vga.screen_dump, s->vga.text_update,
3265 &s->vga);
3266 /* XXX ISA-LFB support */
3267 }
3268
3269 /***************************************
3270 *
3271 * PCI bus support
3272 *
3273 ***************************************/
3274
3275 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3276 uint32_t addr, uint32_t size, int type)
3277 {
3278 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3279
3280 vga_dirty_log_stop((VGAState *)s);
3281
3282 /* XXX: add byte swapping apertures */
3283 cpu_register_physical_memory(addr, s->vga.vram_size,
3284 s->cirrus_linear_io_addr);
3285 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3286 s->cirrus_linear_bitblt_io_addr);
3287
3288 s->vga.map_addr = s->vga.map_end = 0;
3289 s->vga.lfb_addr = addr & TARGET_PAGE_MASK;
3290 s->vga.lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3291 /* account for overflow */
3292 if (s->vga.lfb_end < addr + VGA_RAM_SIZE)
3293 s->vga.lfb_end = addr + VGA_RAM_SIZE;
3294
3295 vga_dirty_log_start(&s->vga);
3296 }
3297
3298 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3299 uint32_t addr, uint32_t size, int type)
3300 {
3301 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3302
3303 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3304 s->cirrus_mmio_io_addr);
3305 }
3306
3307 static void pci_cirrus_write_config(PCIDevice *d,
3308 uint32_t address, uint32_t val, int len)
3309 {
3310 PCICirrusVGAState *pvs = container_of(d, PCICirrusVGAState, dev);
3311 CirrusVGAState *s = &pvs->cirrus_vga;
3312
3313 vga_dirty_log_stop((VGAState *)s);
3314
3315 pci_default_write_config(d, address, val, len);
3316 if (s->vga.map_addr && pvs->dev.io_regions[0].addr == -1)
3317 s->vga.map_addr = 0;
3318 cirrus_update_memory_access(s);
3319
3320 vga_dirty_log_start((VGAState *)s);
3321 }
3322
3323 void pci_cirrus_vga_init(PCIBus *bus)
3324 {
3325 PCICirrusVGAState *d;
3326 uint8_t *pci_conf;
3327 CirrusVGAState *s;
3328 int device_id;
3329
3330 device_id = CIRRUS_ID_CLGD5446;
3331
3332 /* setup PCI configuration registers */
3333 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
3334 sizeof(PCICirrusVGAState),
3335 -1, NULL, pci_cirrus_write_config);
3336 pci_conf = d->dev.config;
3337 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CIRRUS);
3338 pci_config_set_device_id(pci_conf, device_id);
3339 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3340 pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
3341 pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
3342
3343 /* setup VGA */
3344 s = &d->cirrus_vga;
3345 vga_common_init(&s->vga, VGA_RAM_SIZE);
3346 cirrus_init_common(s, device_id, 1);
3347
3348 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
3349 s->vga.screen_dump, s->vga.text_update,
3350 &s->vga);
3351
3352 s->vga.pci_dev = (PCIDevice *)d;
3353
3354 /* setup memory space */
3355 /* memory #0 LFB */
3356 /* memory #1 memory-mapped I/O */
3357 /* XXX: s->vga.vram_size must be a power of two */
3358 pci_register_bar((PCIDevice *)d, 0, 0x2000000,
3359 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3360 if (device_id == CIRRUS_ID_CLGD5446) {
3361 pci_register_bar((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3362 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3363 }
3364 /* XXX: ROM BIOS */
3365 }
Patches shipped by Fedora