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target-ppc: update nip before calling an helper in FP instructions
[qemu/mini2440/sniper_sniper_test.git] / hw / cirrus_vga.c
blob83c5f40d0f25bab980c46697bbacd70995130911
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 /*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "hw.h"
30 #include "pc.h"
31 #include "pci.h"
32 #include "console.h"
33 #include "vga_int.h"
34 #include "kvm.h"
35
36 /*
37 * TODO:
38 * - destination write mask support not complete (bits 5..7)
39 * - optimize linear mappings
40 * - optimize bitblt functions
41 */
42
43 //#define DEBUG_CIRRUS
44 //#define DEBUG_BITBLT
45
46 /***************************************
47 *
48 * definitions
49 *
50 ***************************************/
51
52 #define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
53
54 // ID
55 #define CIRRUS_ID_CLGD5422 (0x23<<2)
56 #define CIRRUS_ID_CLGD5426 (0x24<<2)
57 #define CIRRUS_ID_CLGD5424 (0x25<<2)
58 #define CIRRUS_ID_CLGD5428 (0x26<<2)
59 #define CIRRUS_ID_CLGD5430 (0x28<<2)
60 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
61 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
62 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
63
64 // sequencer 0x07
65 #define CIRRUS_SR7_BPP_VGA 0x00
66 #define CIRRUS_SR7_BPP_SVGA 0x01
67 #define CIRRUS_SR7_BPP_MASK 0x0e
68 #define CIRRUS_SR7_BPP_8 0x00
69 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
70 #define CIRRUS_SR7_BPP_24 0x04
71 #define CIRRUS_SR7_BPP_16 0x06
72 #define CIRRUS_SR7_BPP_32 0x08
73 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
74
75 // sequencer 0x0f
76 #define CIRRUS_MEMSIZE_512k 0x08
77 #define CIRRUS_MEMSIZE_1M 0x10
78 #define CIRRUS_MEMSIZE_2M 0x18
79 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
80
81 // sequencer 0x12
82 #define CIRRUS_CURSOR_SHOW 0x01
83 #define CIRRUS_CURSOR_HIDDENPEL 0x02
84 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
85
86 // sequencer 0x17
87 #define CIRRUS_BUSTYPE_VLBFAST 0x10
88 #define CIRRUS_BUSTYPE_PCI 0x20
89 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
90 #define CIRRUS_BUSTYPE_ISA 0x38
91 #define CIRRUS_MMIO_ENABLE 0x04
92 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
93 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
94
95 // control 0x0b
96 #define CIRRUS_BANKING_DUAL 0x01
97 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
98
99 // control 0x30
100 #define CIRRUS_BLTMODE_BACKWARDS 0x01
101 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
102 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
103 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
104 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
105 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
106 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
107 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
108 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
109 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
110 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
111
112 // control 0x31
113 #define CIRRUS_BLT_BUSY 0x01
114 #define CIRRUS_BLT_START 0x02
115 #define CIRRUS_BLT_RESET 0x04
116 #define CIRRUS_BLT_FIFOUSED 0x10
117 #define CIRRUS_BLT_AUTOSTART 0x80
118
119 // control 0x32
120 #define CIRRUS_ROP_0 0x00
121 #define CIRRUS_ROP_SRC_AND_DST 0x05
122 #define CIRRUS_ROP_NOP 0x06
123 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
124 #define CIRRUS_ROP_NOTDST 0x0b
125 #define CIRRUS_ROP_SRC 0x0d
126 #define CIRRUS_ROP_1 0x0e
127 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
128 #define CIRRUS_ROP_SRC_XOR_DST 0x59
129 #define CIRRUS_ROP_SRC_OR_DST 0x6d
130 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
131 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
132 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
133 #define CIRRUS_ROP_NOTSRC 0xd0
134 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
135 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
136
137 #define CIRRUS_ROP_NOP_INDEX 2
138 #define CIRRUS_ROP_SRC_INDEX 5
139
140 // control 0x33
141 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
142 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
143 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
144
145 // memory-mapped IO
146 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
147 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
148 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
149 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
150 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
151 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
152 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
153 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
154 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
155 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
156 #define CIRRUS_MMIO_BLTROP 0x1a // byte
157 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
159 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
160 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
161 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
163 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
167 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
168 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
169 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
170 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
171 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
172 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
173 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
174 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
175
176 // PCI 0x00: vendor, 0x02: device
177 #define PCI_VENDOR_CIRRUS 0x1013
178 #define PCI_DEVICE_CLGD5462 0x00d0
179 #define PCI_DEVICE_CLGD5465 0x00d6
180
181 // PCI 0x04: command(word), 0x06(word): status
182 #define PCI_COMMAND_IOACCESS 0x0001
183 #define PCI_COMMAND_MEMACCESS 0x0002
184 #define PCI_COMMAND_BUSMASTER 0x0004
185 #define PCI_COMMAND_SPECIALCYCLE 0x0008
186 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
187 #define PCI_COMMAND_PALETTESNOOPING 0x0020
188 #define PCI_COMMAND_PARITYDETECTION 0x0040
189 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
190 #define PCI_COMMAND_SERR 0x0100
191 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
192 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
193 #define PCI_CLASS_BASE_DISPLAY 0x03
194 // PCI 0x08, 0x00ff0000
195 #define PCI_CLASS_SUB_VGA 0x00
196 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
197 #define PCI_CLASS_HEADERTYPE_00h 0x00
198 // 0x10-0x3f (headertype 00h)
199 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
200 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
201 #define PCI_MAP_MEM 0x0
202 #define PCI_MAP_IO 0x1
203 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
204 #define PCI_MAP_IO_ADDR_MASK (~0x3)
205 #define PCI_MAP_MEMFLAGS_32BIT 0x0
206 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
207 #define PCI_MAP_MEMFLAGS_64BIT 0x4
208 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
209 // PCI 0x28: cardbus CIS pointer
210 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
211 // PCI 0x30: expansion ROM base address
212 #define PCI_ROMBIOS_ENABLED 0x1
213 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
214 // PCI 0x38: reserved
215 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
216
217 #define CIRRUS_PNPMMIO_SIZE 0x1000
218
219
220 /* I/O and memory hook */
221 #define CIRRUS_HOOK_NOT_HANDLED 0
222 #define CIRRUS_HOOK_HANDLED 1
223
224 #define ABS(a) ((signed)(a) > 0 ? a : -a)
225
226 #define BLTUNSAFE(s) \
227 ( \
228 ( /* check dst is within bounds */ \
229 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
230 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
231 (s)->vram_size \
232 ) || \
233 ( /* check src is within bounds */ \
234 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
235 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
236 (s)->vram_size \
237 ) \
238 )
239
240 struct CirrusVGAState;
241 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
242 uint8_t * dst, const uint8_t * src,
243 int dstpitch, int srcpitch,
244 int bltwidth, int bltheight);
245 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
246 uint8_t *dst, int dst_pitch, int width, int height);
247
248 typedef struct CirrusVGAState {
249 VGA_STATE_COMMON
250
251 int cirrus_linear_io_addr;
252 int cirrus_linear_bitblt_io_addr;
253 int cirrus_mmio_io_addr;
254 uint32_t cirrus_addr_mask;
255 uint32_t linear_mmio_mask;
256 uint8_t cirrus_shadow_gr0;
257 uint8_t cirrus_shadow_gr1;
258 uint8_t cirrus_hidden_dac_lockindex;
259 uint8_t cirrus_hidden_dac_data;
260 uint32_t cirrus_bank_base[2];
261 uint32_t cirrus_bank_limit[2];
262 uint8_t cirrus_hidden_palette[48];
263 uint32_t hw_cursor_x;
264 uint32_t hw_cursor_y;
265 int cirrus_blt_pixelwidth;
266 int cirrus_blt_width;
267 int cirrus_blt_height;
268 int cirrus_blt_dstpitch;
269 int cirrus_blt_srcpitch;
270 uint32_t cirrus_blt_fgcol;
271 uint32_t cirrus_blt_bgcol;
272 uint32_t cirrus_blt_dstaddr;
273 uint32_t cirrus_blt_srcaddr;
274 uint8_t cirrus_blt_mode;
275 uint8_t cirrus_blt_modeext;
276 cirrus_bitblt_rop_t cirrus_rop;
277 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
278 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
279 uint8_t *cirrus_srcptr;
280 uint8_t *cirrus_srcptr_end;
281 uint32_t cirrus_srccounter;
282 /* hwcursor display state */
283 int last_hw_cursor_size;
284 int last_hw_cursor_x;
285 int last_hw_cursor_y;
286 int last_hw_cursor_y_start;
287 int last_hw_cursor_y_end;
288 int real_vram_size; /* XXX: suppress that */
289 CPUWriteMemoryFunc **cirrus_linear_write;
290 } CirrusVGAState;
291
292 typedef struct PCICirrusVGAState {
293 PCIDevice dev;
294 CirrusVGAState cirrus_vga;
295 } PCICirrusVGAState;
296
297 static uint8_t rop_to_index[256];
298
299 /***************************************
300 *
301 * prototypes.
302 *
303 ***************************************/
304
305
306 static void cirrus_bitblt_reset(CirrusVGAState *s);
307 static void cirrus_update_memory_access(CirrusVGAState *s);
308
309 /***************************************
310 *
311 * raster operations
312 *
313 ***************************************/
314
315 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
316 uint8_t *dst,const uint8_t *src,
317 int dstpitch,int srcpitch,
318 int bltwidth,int bltheight)
319 {
320 }
321
322 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
323 uint8_t *dst,
324 int dstpitch, int bltwidth,int bltheight)
325 {
326 }
327
328 #define ROP_NAME 0
329 #define ROP_OP(d, s) d = 0
330 #include "cirrus_vga_rop.h"
331
332 #define ROP_NAME src_and_dst
333 #define ROP_OP(d, s) d = (s) & (d)
334 #include "cirrus_vga_rop.h"
335
336 #define ROP_NAME src_and_notdst
337 #define ROP_OP(d, s) d = (s) & (~(d))
338 #include "cirrus_vga_rop.h"
339
340 #define ROP_NAME notdst
341 #define ROP_OP(d, s) d = ~(d)
342 #include "cirrus_vga_rop.h"
343
344 #define ROP_NAME src
345 #define ROP_OP(d, s) d = s
346 #include "cirrus_vga_rop.h"
347
348 #define ROP_NAME 1
349 #define ROP_OP(d, s) d = ~0
350 #include "cirrus_vga_rop.h"
351
352 #define ROP_NAME notsrc_and_dst
353 #define ROP_OP(d, s) d = (~(s)) & (d)
354 #include "cirrus_vga_rop.h"
355
356 #define ROP_NAME src_xor_dst
357 #define ROP_OP(d, s) d = (s) ^ (d)
358 #include "cirrus_vga_rop.h"
359
360 #define ROP_NAME src_or_dst
361 #define ROP_OP(d, s) d = (s) | (d)
362 #include "cirrus_vga_rop.h"
363
364 #define ROP_NAME notsrc_or_notdst
365 #define ROP_OP(d, s) d = (~(s)) | (~(d))
366 #include "cirrus_vga_rop.h"
367
368 #define ROP_NAME src_notxor_dst
369 #define ROP_OP(d, s) d = ~((s) ^ (d))
370 #include "cirrus_vga_rop.h"
371
372 #define ROP_NAME src_or_notdst
373 #define ROP_OP(d, s) d = (s) | (~(d))
374 #include "cirrus_vga_rop.h"
375
376 #define ROP_NAME notsrc
377 #define ROP_OP(d, s) d = (~(s))
378 #include "cirrus_vga_rop.h"
379
380 #define ROP_NAME notsrc_or_dst
381 #define ROP_OP(d, s) d = (~(s)) | (d)
382 #include "cirrus_vga_rop.h"
383
384 #define ROP_NAME notsrc_and_notdst
385 #define ROP_OP(d, s) d = (~(s)) & (~(d))
386 #include "cirrus_vga_rop.h"
387
388 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
389 cirrus_bitblt_rop_fwd_0,
390 cirrus_bitblt_rop_fwd_src_and_dst,
391 cirrus_bitblt_rop_nop,
392 cirrus_bitblt_rop_fwd_src_and_notdst,
393 cirrus_bitblt_rop_fwd_notdst,
394 cirrus_bitblt_rop_fwd_src,
395 cirrus_bitblt_rop_fwd_1,
396 cirrus_bitblt_rop_fwd_notsrc_and_dst,
397 cirrus_bitblt_rop_fwd_src_xor_dst,
398 cirrus_bitblt_rop_fwd_src_or_dst,
399 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
400 cirrus_bitblt_rop_fwd_src_notxor_dst,
401 cirrus_bitblt_rop_fwd_src_or_notdst,
402 cirrus_bitblt_rop_fwd_notsrc,
403 cirrus_bitblt_rop_fwd_notsrc_or_dst,
404 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
405 };
406
407 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
408 cirrus_bitblt_rop_bkwd_0,
409 cirrus_bitblt_rop_bkwd_src_and_dst,
410 cirrus_bitblt_rop_nop,
411 cirrus_bitblt_rop_bkwd_src_and_notdst,
412 cirrus_bitblt_rop_bkwd_notdst,
413 cirrus_bitblt_rop_bkwd_src,
414 cirrus_bitblt_rop_bkwd_1,
415 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
416 cirrus_bitblt_rop_bkwd_src_xor_dst,
417 cirrus_bitblt_rop_bkwd_src_or_dst,
418 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
419 cirrus_bitblt_rop_bkwd_src_notxor_dst,
420 cirrus_bitblt_rop_bkwd_src_or_notdst,
421 cirrus_bitblt_rop_bkwd_notsrc,
422 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
423 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
424 };
425
426 #define TRANSP_ROP(name) {\
427 name ## _8,\
428 name ## _16,\
429 }
430 #define TRANSP_NOP(func) {\
431 func,\
432 func,\
433 }
434
435 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
436 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
438 TRANSP_NOP(cirrus_bitblt_rop_nop),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
447 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
448 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
449 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
450 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
451 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
452 };
453
454 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
455 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
457 TRANSP_NOP(cirrus_bitblt_rop_nop),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
465 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
466 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
467 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
468 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
469 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
470 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
471 };
472
473 #define ROP2(name) {\
474 name ## _8,\
475 name ## _16,\
476 name ## _24,\
477 name ## _32,\
478 }
479
480 #define ROP_NOP2(func) {\
481 func,\
482 func,\
483 func,\
484 func,\
485 }
486
487 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
488 ROP2(cirrus_patternfill_0),
489 ROP2(cirrus_patternfill_src_and_dst),
490 ROP_NOP2(cirrus_bitblt_rop_nop),
491 ROP2(cirrus_patternfill_src_and_notdst),
492 ROP2(cirrus_patternfill_notdst),
493 ROP2(cirrus_patternfill_src),
494 ROP2(cirrus_patternfill_1),
495 ROP2(cirrus_patternfill_notsrc_and_dst),
496 ROP2(cirrus_patternfill_src_xor_dst),
497 ROP2(cirrus_patternfill_src_or_dst),
498 ROP2(cirrus_patternfill_notsrc_or_notdst),
499 ROP2(cirrus_patternfill_src_notxor_dst),
500 ROP2(cirrus_patternfill_src_or_notdst),
501 ROP2(cirrus_patternfill_notsrc),
502 ROP2(cirrus_patternfill_notsrc_or_dst),
503 ROP2(cirrus_patternfill_notsrc_and_notdst),
504 };
505
506 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
507 ROP2(cirrus_colorexpand_transp_0),
508 ROP2(cirrus_colorexpand_transp_src_and_dst),
509 ROP_NOP2(cirrus_bitblt_rop_nop),
510 ROP2(cirrus_colorexpand_transp_src_and_notdst),
511 ROP2(cirrus_colorexpand_transp_notdst),
512 ROP2(cirrus_colorexpand_transp_src),
513 ROP2(cirrus_colorexpand_transp_1),
514 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
515 ROP2(cirrus_colorexpand_transp_src_xor_dst),
516 ROP2(cirrus_colorexpand_transp_src_or_dst),
517 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
518 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
519 ROP2(cirrus_colorexpand_transp_src_or_notdst),
520 ROP2(cirrus_colorexpand_transp_notsrc),
521 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
522 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
523 };
524
525 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
526 ROP2(cirrus_colorexpand_0),
527 ROP2(cirrus_colorexpand_src_and_dst),
528 ROP_NOP2(cirrus_bitblt_rop_nop),
529 ROP2(cirrus_colorexpand_src_and_notdst),
530 ROP2(cirrus_colorexpand_notdst),
531 ROP2(cirrus_colorexpand_src),
532 ROP2(cirrus_colorexpand_1),
533 ROP2(cirrus_colorexpand_notsrc_and_dst),
534 ROP2(cirrus_colorexpand_src_xor_dst),
535 ROP2(cirrus_colorexpand_src_or_dst),
536 ROP2(cirrus_colorexpand_notsrc_or_notdst),
537 ROP2(cirrus_colorexpand_src_notxor_dst),
538 ROP2(cirrus_colorexpand_src_or_notdst),
539 ROP2(cirrus_colorexpand_notsrc),
540 ROP2(cirrus_colorexpand_notsrc_or_dst),
541 ROP2(cirrus_colorexpand_notsrc_and_notdst),
542 };
543
544 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
545 ROP2(cirrus_colorexpand_pattern_transp_0),
546 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
547 ROP_NOP2(cirrus_bitblt_rop_nop),
548 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
549 ROP2(cirrus_colorexpand_pattern_transp_notdst),
550 ROP2(cirrus_colorexpand_pattern_transp_src),
551 ROP2(cirrus_colorexpand_pattern_transp_1),
552 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
553 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
554 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
555 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
556 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
557 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
558 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
559 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
560 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
561 };
562
563 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
564 ROP2(cirrus_colorexpand_pattern_0),
565 ROP2(cirrus_colorexpand_pattern_src_and_dst),
566 ROP_NOP2(cirrus_bitblt_rop_nop),
567 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
568 ROP2(cirrus_colorexpand_pattern_notdst),
569 ROP2(cirrus_colorexpand_pattern_src),
570 ROP2(cirrus_colorexpand_pattern_1),
571 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
572 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
573 ROP2(cirrus_colorexpand_pattern_src_or_dst),
574 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
575 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
576 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
577 ROP2(cirrus_colorexpand_pattern_notsrc),
578 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
579 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
580 };
581
582 static const cirrus_fill_t cirrus_fill[16][4] = {
583 ROP2(cirrus_fill_0),
584 ROP2(cirrus_fill_src_and_dst),
585 ROP_NOP2(cirrus_bitblt_fill_nop),
586 ROP2(cirrus_fill_src_and_notdst),
587 ROP2(cirrus_fill_notdst),
588 ROP2(cirrus_fill_src),
589 ROP2(cirrus_fill_1),
590 ROP2(cirrus_fill_notsrc_and_dst),
591 ROP2(cirrus_fill_src_xor_dst),
592 ROP2(cirrus_fill_src_or_dst),
593 ROP2(cirrus_fill_notsrc_or_notdst),
594 ROP2(cirrus_fill_src_notxor_dst),
595 ROP2(cirrus_fill_src_or_notdst),
596 ROP2(cirrus_fill_notsrc),
597 ROP2(cirrus_fill_notsrc_or_dst),
598 ROP2(cirrus_fill_notsrc_and_notdst),
599 };
600
601 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
602 {
603 unsigned int color;
604 switch (s->cirrus_blt_pixelwidth) {
605 case 1:
606 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
607 break;
608 case 2:
609 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8);
610 s->cirrus_blt_fgcol = le16_to_cpu(color);
611 break;
612 case 3:
613 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
614 (s->gr[0x11] << 8) | (s->gr[0x13] << 16);
615 break;
616 default:
617 case 4:
618 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8) |
619 (s->gr[0x13] << 16) | (s->gr[0x15] << 24);
620 s->cirrus_blt_fgcol = le32_to_cpu(color);
621 break;
622 }
623 }
624
625 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
626 {
627 unsigned int color;
628 switch (s->cirrus_blt_pixelwidth) {
629 case 1:
630 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
631 break;
632 case 2:
633 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8);
634 s->cirrus_blt_bgcol = le16_to_cpu(color);
635 break;
636 case 3:
637 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
638 (s->gr[0x10] << 8) | (s->gr[0x12] << 16);
639 break;
640 default:
641 case 4:
642 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8) |
643 (s->gr[0x12] << 16) | (s->gr[0x14] << 24);
644 s->cirrus_blt_bgcol = le32_to_cpu(color);
645 break;
646 }
647 }
648
649 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
650 int off_pitch, int bytesperline,
651 int lines)
652 {
653 int y;
654 int off_cur;
655 int off_cur_end;
656
657 for (y = 0; y < lines; y++) {
658 off_cur = off_begin;
659 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
660 off_cur &= TARGET_PAGE_MASK;
661 while (off_cur < off_cur_end) {
662 cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
663 off_cur += TARGET_PAGE_SIZE;
664 }
665 off_begin += off_pitch;
666 }
667 }
668
669 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
670 const uint8_t * src)
671 {
672 uint8_t *dst;
673
674 dst = s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
675
676 if (BLTUNSAFE(s))
677 return 0;
678
679 (*s->cirrus_rop) (s, dst, src,
680 s->cirrus_blt_dstpitch, 0,
681 s->cirrus_blt_width, s->cirrus_blt_height);
682 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
683 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
684 s->cirrus_blt_height);
685 return 1;
686 }
687
688 /* fill */
689
690 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
691 {
692 cirrus_fill_t rop_func;
693
694 if (BLTUNSAFE(s))
695 return 0;
696 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
697 rop_func(s, s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
698 s->cirrus_blt_dstpitch,
699 s->cirrus_blt_width, s->cirrus_blt_height);
700 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
701 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
702 s->cirrus_blt_height);
703 cirrus_bitblt_reset(s);
704 return 1;
705 }
706
707 /***************************************
708 *
709 * bitblt (video-to-video)
710 *
711 ***************************************/
712
713 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
714 {
715 return cirrus_bitblt_common_patterncopy(s,
716 s->vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
717 s->cirrus_addr_mask));
718 }
719
720 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
721 {
722 int sx, sy;
723 int dx, dy;
724 int width, height;
725 int depth;
726 int notify = 0;
727
728 depth = s->get_bpp((VGAState *)s) / 8;
729 s->get_resolution((VGAState *)s, &width, &height);
730
731 /* extra x, y */
732 sx = (src % (width * depth)) / depth;
733 sy = (src / (width * depth));
734 dx = (dst % (width *depth)) / depth;
735 dy = (dst / (width * depth));
736
737 /* normalize width */
738 w /= depth;
739
740 /* if we're doing a backward copy, we have to adjust
741 our x/y to be the upper left corner (instead of the lower
742 right corner) */
743 if (s->cirrus_blt_dstpitch < 0) {
744 sx -= (s->cirrus_blt_width / depth) - 1;
745 dx -= (s->cirrus_blt_width / depth) - 1;
746 sy -= s->cirrus_blt_height - 1;
747 dy -= s->cirrus_blt_height - 1;
748 }
749
750 /* are we in the visible portion of memory? */
751 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
752 (sx + w) <= width && (sy + h) <= height &&
753 (dx + w) <= width && (dy + h) <= height) {
754 notify = 1;
755 }
756
757 /* make to sure only copy if it's a plain copy ROP */
758 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
759 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
760 notify = 0;
761
762 /* we have to flush all pending changes so that the copy
763 is generated at the appropriate moment in time */
764 if (notify)
765 vga_hw_update();
766
767 (*s->cirrus_rop) (s, s->vram_ptr +
768 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
769 s->vram_ptr +
770 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
771 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
772 s->cirrus_blt_width, s->cirrus_blt_height);
773
774 if (notify)
775 qemu_console_copy(s->console,
776 sx, sy, dx, dy,
777 s->cirrus_blt_width / depth,
778 s->cirrus_blt_height);
779
780 /* we don't have to notify the display that this portion has
781 changed since qemu_console_copy implies this */
782
783 if (!notify)
784 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
785 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
786 s->cirrus_blt_height);
787 }
788
789 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
790 {
791 if (BLTUNSAFE(s))
792 return 0;
793
794 if (s->ds->dpy_copy) {
795 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->start_addr,
796 s->cirrus_blt_srcaddr - s->start_addr,
797 s->cirrus_blt_width, s->cirrus_blt_height);
798 } else {
799 (*s->cirrus_rop) (s, s->vram_ptr +
800 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
801 s->vram_ptr +
802 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
803 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
804 s->cirrus_blt_width, s->cirrus_blt_height);
805
806 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
807 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
808 s->cirrus_blt_height);
809 }
810
811 return 1;
812 }
813
814 /***************************************
815 *
816 * bitblt (cpu-to-video)
817 *
818 ***************************************/
819
820 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
821 {
822 int copy_count;
823 uint8_t *end_ptr;
824
825 if (s->cirrus_srccounter > 0) {
826 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
827 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
828 the_end:
829 s->cirrus_srccounter = 0;
830 cirrus_bitblt_reset(s);
831 } else {
832 /* at least one scan line */
833 do {
834 (*s->cirrus_rop)(s, s->vram_ptr +
835 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
836 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
837 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
838 s->cirrus_blt_width, 1);
839 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
840 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
841 if (s->cirrus_srccounter <= 0)
842 goto the_end;
843 /* more bytes than needed can be transfered because of
844 word alignment, so we keep them for the next line */
845 /* XXX: keep alignment to speed up transfer */
846 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
847 copy_count = s->cirrus_srcptr_end - end_ptr;
848 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
849 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
850 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
851 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
852 }
853 }
854 }
855
856 /***************************************
857 *
858 * bitblt wrapper
859 *
860 ***************************************/
861
862 static void cirrus_bitblt_reset(CirrusVGAState * s)
863 {
864 s->gr[0x31] &=
865 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
866 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
867 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
868 s->cirrus_srccounter = 0;
869 cirrus_update_memory_access(s);
870 }
871
872 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
873 {
874 int w;
875
876 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
877 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
878 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
879
880 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
881 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
882 s->cirrus_blt_srcpitch = 8;
883 } else {
884 /* XXX: check for 24 bpp */
885 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
886 }
887 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
888 } else {
889 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
890 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
891 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
892 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
893 else
894 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
895 } else {
896 /* always align input size to 32 bits */
897 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
898 }
899 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
900 }
901 s->cirrus_srcptr = s->cirrus_bltbuf;
902 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
903 cirrus_update_memory_access(s);
904 return 1;
905 }
906
907 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
908 {
909 /* XXX */
910 #ifdef DEBUG_BITBLT
911 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
912 #endif
913 return 0;
914 }
915
916 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
917 {
918 int ret;
919
920 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
921 ret = cirrus_bitblt_videotovideo_patterncopy(s);
922 } else {
923 ret = cirrus_bitblt_videotovideo_copy(s);
924 }
925 if (ret)
926 cirrus_bitblt_reset(s);
927 return ret;
928 }
929
930 static void cirrus_bitblt_start(CirrusVGAState * s)
931 {
932 uint8_t blt_rop;
933
934 s->gr[0x31] |= CIRRUS_BLT_BUSY;
935
936 s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
937 s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
938 s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
939 s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
940 s->cirrus_blt_dstaddr =
941 (s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
942 s->cirrus_blt_srcaddr =
943 (s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
944 s->cirrus_blt_mode = s->gr[0x30];
945 s->cirrus_blt_modeext = s->gr[0x33];
946 blt_rop = s->gr[0x32];
947
948 #ifdef DEBUG_BITBLT
949 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",
950 blt_rop,
951 s->cirrus_blt_mode,
952 s->cirrus_blt_modeext,
953 s->cirrus_blt_width,
954 s->cirrus_blt_height,
955 s->cirrus_blt_dstpitch,
956 s->cirrus_blt_srcpitch,
957 s->cirrus_blt_dstaddr,
958 s->cirrus_blt_srcaddr,
959 s->gr[0x2f]);
960 #endif
961
962 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
963 case CIRRUS_BLTMODE_PIXELWIDTH8:
964 s->cirrus_blt_pixelwidth = 1;
965 break;
966 case CIRRUS_BLTMODE_PIXELWIDTH16:
967 s->cirrus_blt_pixelwidth = 2;
968 break;
969 case CIRRUS_BLTMODE_PIXELWIDTH24:
970 s->cirrus_blt_pixelwidth = 3;
971 break;
972 case CIRRUS_BLTMODE_PIXELWIDTH32:
973 s->cirrus_blt_pixelwidth = 4;
974 break;
975 default:
976 #ifdef DEBUG_BITBLT
977 printf("cirrus: bitblt - pixel width is unknown\n");
978 #endif
979 goto bitblt_ignore;
980 }
981 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
982
983 if ((s->
984 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
985 CIRRUS_BLTMODE_MEMSYSDEST))
986 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
987 #ifdef DEBUG_BITBLT
988 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
989 #endif
990 goto bitblt_ignore;
991 }
992
993 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
994 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
995 CIRRUS_BLTMODE_TRANSPARENTCOMP |
996 CIRRUS_BLTMODE_PATTERNCOPY |
997 CIRRUS_BLTMODE_COLOREXPAND)) ==
998 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
999 cirrus_bitblt_fgcol(s);
1000 cirrus_bitblt_solidfill(s, blt_rop);
1001 } else {
1002 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
1003 CIRRUS_BLTMODE_PATTERNCOPY)) ==
1004 CIRRUS_BLTMODE_COLOREXPAND) {
1005
1006 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1007 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1008 cirrus_bitblt_bgcol(s);
1009 else
1010 cirrus_bitblt_fgcol(s);
1011 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1012 } else {
1013 cirrus_bitblt_fgcol(s);
1014 cirrus_bitblt_bgcol(s);
1015 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1016 }
1017 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1018 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1019 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1020 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1021 cirrus_bitblt_bgcol(s);
1022 else
1023 cirrus_bitblt_fgcol(s);
1024 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1025 } else {
1026 cirrus_bitblt_fgcol(s);
1027 cirrus_bitblt_bgcol(s);
1028 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1029 }
1030 } else {
1031 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1032 }
1033 } else {
1034 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1035 if (s->cirrus_blt_pixelwidth > 2) {
1036 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1037 goto bitblt_ignore;
1038 }
1039 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1040 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1041 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1042 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1043 } else {
1044 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1045 }
1046 } else {
1047 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1048 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1049 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1050 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1051 } else {
1052 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1053 }
1054 }
1055 }
1056 // setup bitblt engine.
1057 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1058 if (!cirrus_bitblt_cputovideo(s))
1059 goto bitblt_ignore;
1060 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1061 if (!cirrus_bitblt_videotocpu(s))
1062 goto bitblt_ignore;
1063 } else {
1064 if (!cirrus_bitblt_videotovideo(s))
1065 goto bitblt_ignore;
1066 }
1067 }
1068 return;
1069 bitblt_ignore:;
1070 cirrus_bitblt_reset(s);
1071 }
1072
1073 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1074 {
1075 unsigned old_value;
1076
1077 old_value = s->gr[0x31];
1078 s->gr[0x31] = reg_value;
1079
1080 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1081 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1082 cirrus_bitblt_reset(s);
1083 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1084 ((reg_value & CIRRUS_BLT_START) != 0)) {
1085 cirrus_bitblt_start(s);
1086 }
1087 }
1088
1089
1090 /***************************************
1091 *
1092 * basic parameters
1093 *
1094 ***************************************/
1095
1096 static void cirrus_get_offsets(VGAState *s1,
1097 uint32_t *pline_offset,
1098 uint32_t *pstart_addr,
1099 uint32_t *pline_compare)
1100 {
1101 CirrusVGAState * s = (CirrusVGAState *)s1;
1102 uint32_t start_addr, line_offset, line_compare;
1103
1104 line_offset = s->cr[0x13]
1105 | ((s->cr[0x1b] & 0x10) << 4);
1106 line_offset <<= 3;
1107 *pline_offset = line_offset;
1108
1109 start_addr = (s->cr[0x0c] << 8)
1110 | s->cr[0x0d]
1111 | ((s->cr[0x1b] & 0x01) << 16)
1112 | ((s->cr[0x1b] & 0x0c) << 15)
1113 | ((s->cr[0x1d] & 0x80) << 12);
1114 *pstart_addr = start_addr;
1115
1116 line_compare = s->cr[0x18] |
1117 ((s->cr[0x07] & 0x10) << 4) |
1118 ((s->cr[0x09] & 0x40) << 3);
1119 *pline_compare = line_compare;
1120 }
1121
1122 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1123 {
1124 uint32_t ret = 16;
1125
1126 switch (s->cirrus_hidden_dac_data & 0xf) {
1127 case 0:
1128 ret = 15;
1129 break; /* Sierra HiColor */
1130 case 1:
1131 ret = 16;
1132 break; /* XGA HiColor */
1133 default:
1134 #ifdef DEBUG_CIRRUS
1135 printf("cirrus: invalid DAC value %x in 16bpp\n",
1136 (s->cirrus_hidden_dac_data & 0xf));
1137 #endif
1138 ret = 15; /* XXX */
1139 break;
1140 }
1141 return ret;
1142 }
1143
1144 static int cirrus_get_bpp(VGAState *s1)
1145 {
1146 CirrusVGAState * s = (CirrusVGAState *)s1;
1147 uint32_t ret = 8;
1148
1149 if ((s->sr[0x07] & 0x01) != 0) {
1150 /* Cirrus SVGA */
1151 switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1152 case CIRRUS_SR7_BPP_8:
1153 ret = 8;
1154 break;
1155 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1156 ret = cirrus_get_bpp16_depth(s);
1157 break;
1158 case CIRRUS_SR7_BPP_24:
1159 ret = 24;
1160 break;
1161 case CIRRUS_SR7_BPP_16:
1162 ret = cirrus_get_bpp16_depth(s);
1163 break;
1164 case CIRRUS_SR7_BPP_32:
1165 ret = 32;
1166 break;
1167 default:
1168 #ifdef DEBUG_CIRRUS
1169 printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
1170 #endif
1171 ret = 8;
1172 break;
1173 }
1174 } else {
1175 /* VGA */
1176 ret = 0;
1177 }
1178
1179 return ret;
1180 }
1181
1182 static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1183 {
1184 int width, height;
1185
1186 width = (s->cr[0x01] + 1) * 8;
1187 height = s->cr[0x12] |
1188 ((s->cr[0x07] & 0x02) << 7) |
1189 ((s->cr[0x07] & 0x40) << 3);
1190 height = (height + 1);
1191 /* interlace support */
1192 if (s->cr[0x1a] & 0x01)
1193 height = height * 2;
1194 *pwidth = width;
1195 *pheight = height;
1196 }
1197
1198 /***************************************
1199 *
1200 * bank memory
1201 *
1202 ***************************************/
1203
1204 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1205 {
1206 unsigned offset;
1207 unsigned limit;
1208
1209 if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
1210 offset = s->gr[0x09 + bank_index];
1211 else /* single bank */
1212 offset = s->gr[0x09];
1213
1214 if ((s->gr[0x0b] & 0x20) != 0)
1215 offset <<= 14;
1216 else
1217 offset <<= 12;
1218
1219 if (s->real_vram_size <= offset)
1220 limit = 0;
1221 else
1222 limit = s->real_vram_size - offset;
1223
1224 if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1225 if (limit > 0x8000) {
1226 offset += 0x8000;
1227 limit -= 0x8000;
1228 } else {
1229 limit = 0;
1230 }
1231 }
1232
1233 if (limit > 0) {
1234 /* Thinking about changing bank base? First, drop the dirty bitmap information
1235 * on the current location, otherwise we lose this pointer forever */
1236 if (s->lfb_vram_mapped) {
1237 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1238 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1239 }
1240 s->cirrus_bank_base[bank_index] = offset;
1241 s->cirrus_bank_limit[bank_index] = limit;
1242 } else {
1243 s->cirrus_bank_base[bank_index] = 0;
1244 s->cirrus_bank_limit[bank_index] = 0;
1245 }
1246 }
1247
1248 /***************************************
1249 *
1250 * I/O access between 0x3c4-0x3c5
1251 *
1252 ***************************************/
1253
1254 static int
1255 cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1256 {
1257 switch (reg_index) {
1258 case 0x00: // Standard VGA
1259 case 0x01: // Standard VGA
1260 case 0x02: // Standard VGA
1261 case 0x03: // Standard VGA
1262 case 0x04: // Standard VGA
1263 return CIRRUS_HOOK_NOT_HANDLED;
1264 case 0x06: // Unlock Cirrus extensions
1265 *reg_value = s->sr[reg_index];
1266 break;
1267 case 0x10:
1268 case 0x30:
1269 case 0x50:
1270 case 0x70: // Graphics Cursor X
1271 case 0x90:
1272 case 0xb0:
1273 case 0xd0:
1274 case 0xf0: // Graphics Cursor X
1275 *reg_value = s->sr[0x10];
1276 break;
1277 case 0x11:
1278 case 0x31:
1279 case 0x51:
1280 case 0x71: // Graphics Cursor Y
1281 case 0x91:
1282 case 0xb1:
1283 case 0xd1:
1284 case 0xf1: // Graphics Cursor Y
1285 *reg_value = s->sr[0x11];
1286 break;
1287 case 0x05: // ???
1288 case 0x07: // Extended Sequencer Mode
1289 case 0x08: // EEPROM Control
1290 case 0x09: // Scratch Register 0
1291 case 0x0a: // Scratch Register 1
1292 case 0x0b: // VCLK 0
1293 case 0x0c: // VCLK 1
1294 case 0x0d: // VCLK 2
1295 case 0x0e: // VCLK 3
1296 case 0x0f: // DRAM Control
1297 case 0x12: // Graphics Cursor Attribute
1298 case 0x13: // Graphics Cursor Pattern Address
1299 case 0x14: // Scratch Register 2
1300 case 0x15: // Scratch Register 3
1301 case 0x16: // Performance Tuning Register
1302 case 0x17: // Configuration Readback and Extended Control
1303 case 0x18: // Signature Generator Control
1304 case 0x19: // Signal Generator Result
1305 case 0x1a: // Signal Generator Result
1306 case 0x1b: // VCLK 0 Denominator & Post
1307 case 0x1c: // VCLK 1 Denominator & Post
1308 case 0x1d: // VCLK 2 Denominator & Post
1309 case 0x1e: // VCLK 3 Denominator & Post
1310 case 0x1f: // BIOS Write Enable and MCLK select
1311 #ifdef DEBUG_CIRRUS
1312 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1313 #endif
1314 *reg_value = s->sr[reg_index];
1315 break;
1316 default:
1317 #ifdef DEBUG_CIRRUS
1318 printf("cirrus: inport sr_index %02x\n", reg_index);
1319 #endif
1320 *reg_value = 0xff;
1321 break;
1322 }
1323
1324 return CIRRUS_HOOK_HANDLED;
1325 }
1326
1327 static int
1328 cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1329 {
1330 switch (reg_index) {
1331 case 0x00: // Standard VGA
1332 case 0x01: // Standard VGA
1333 case 0x02: // Standard VGA
1334 case 0x03: // Standard VGA
1335 case 0x04: // Standard VGA
1336 return CIRRUS_HOOK_NOT_HANDLED;
1337 case 0x06: // Unlock Cirrus extensions
1338 reg_value &= 0x17;
1339 if (reg_value == 0x12) {
1340 s->sr[reg_index] = 0x12;
1341 } else {
1342 s->sr[reg_index] = 0x0f;
1343 }
1344 break;
1345 case 0x10:
1346 case 0x30:
1347 case 0x50:
1348 case 0x70: // Graphics Cursor X
1349 case 0x90:
1350 case 0xb0:
1351 case 0xd0:
1352 case 0xf0: // Graphics Cursor X
1353 s->sr[0x10] = reg_value;
1354 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
1355 break;
1356 case 0x11:
1357 case 0x31:
1358 case 0x51:
1359 case 0x71: // Graphics Cursor Y
1360 case 0x91:
1361 case 0xb1:
1362 case 0xd1:
1363 case 0xf1: // Graphics Cursor Y
1364 s->sr[0x11] = reg_value;
1365 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
1366 break;
1367 case 0x07: // Extended Sequencer Mode
1368 cirrus_update_memory_access(s);
1369 case 0x08: // EEPROM Control
1370 case 0x09: // Scratch Register 0
1371 case 0x0a: // Scratch Register 1
1372 case 0x0b: // VCLK 0
1373 case 0x0c: // VCLK 1
1374 case 0x0d: // VCLK 2
1375 case 0x0e: // VCLK 3
1376 case 0x0f: // DRAM Control
1377 case 0x12: // Graphics Cursor Attribute
1378 case 0x13: // Graphics Cursor Pattern Address
1379 case 0x14: // Scratch Register 2
1380 case 0x15: // Scratch Register 3
1381 case 0x16: // Performance Tuning Register
1382 case 0x18: // Signature Generator Control
1383 case 0x19: // Signature Generator Result
1384 case 0x1a: // Signature Generator Result
1385 case 0x1b: // VCLK 0 Denominator & Post
1386 case 0x1c: // VCLK 1 Denominator & Post
1387 case 0x1d: // VCLK 2 Denominator & Post
1388 case 0x1e: // VCLK 3 Denominator & Post
1389 case 0x1f: // BIOS Write Enable and MCLK select
1390 s->sr[reg_index] = reg_value;
1391 #ifdef DEBUG_CIRRUS
1392 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1393 reg_index, reg_value);
1394 #endif
1395 break;
1396 case 0x17: // Configuration Readback and Extended Control
1397 s->sr[reg_index] = (s->sr[reg_index] & 0x38) | (reg_value & 0xc7);
1398 cirrus_update_memory_access(s);
1399 break;
1400 default:
1401 #ifdef DEBUG_CIRRUS
1402 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1403 reg_value);
1404 #endif
1405 break;
1406 }
1407
1408 return CIRRUS_HOOK_HANDLED;
1409 }
1410
1411 /***************************************
1412 *
1413 * I/O access at 0x3c6
1414 *
1415 ***************************************/
1416
1417 static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1418 {
1419 *reg_value = 0xff;
1420 if (++s->cirrus_hidden_dac_lockindex == 5) {
1421 *reg_value = s->cirrus_hidden_dac_data;
1422 s->cirrus_hidden_dac_lockindex = 0;
1423 }
1424 }
1425
1426 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1427 {
1428 if (s->cirrus_hidden_dac_lockindex == 4) {
1429 s->cirrus_hidden_dac_data = reg_value;
1430 #if defined(DEBUG_CIRRUS)
1431 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1432 #endif
1433 }
1434 s->cirrus_hidden_dac_lockindex = 0;
1435 }
1436
1437 /***************************************
1438 *
1439 * I/O access at 0x3c9
1440 *
1441 ***************************************/
1442
1443 static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1444 {
1445 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1446 return CIRRUS_HOOK_NOT_HANDLED;
1447 *reg_value =
1448 s->cirrus_hidden_palette[(s->dac_read_index & 0x0f) * 3 +
1449 s->dac_sub_index];
1450 if (++s->dac_sub_index == 3) {
1451 s->dac_sub_index = 0;
1452 s->dac_read_index++;
1453 }
1454 return CIRRUS_HOOK_HANDLED;
1455 }
1456
1457 static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1458 {
1459 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1460 return CIRRUS_HOOK_NOT_HANDLED;
1461 s->dac_cache[s->dac_sub_index] = reg_value;
1462 if (++s->dac_sub_index == 3) {
1463 memcpy(&s->cirrus_hidden_palette[(s->dac_write_index & 0x0f) * 3],
1464 s->dac_cache, 3);
1465 /* XXX update cursor */
1466 s->dac_sub_index = 0;
1467 s->dac_write_index++;
1468 }
1469 return CIRRUS_HOOK_HANDLED;
1470 }
1471
1472 /***************************************
1473 *
1474 * I/O access between 0x3ce-0x3cf
1475 *
1476 ***************************************/
1477
1478 static int
1479 cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1480 {
1481 switch (reg_index) {
1482 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1483 *reg_value = s->cirrus_shadow_gr0;
1484 return CIRRUS_HOOK_HANDLED;
1485 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1486 *reg_value = s->cirrus_shadow_gr1;
1487 return CIRRUS_HOOK_HANDLED;
1488 case 0x02: // Standard VGA
1489 case 0x03: // Standard VGA
1490 case 0x04: // Standard VGA
1491 case 0x06: // Standard VGA
1492 case 0x07: // Standard VGA
1493 case 0x08: // Standard VGA
1494 return CIRRUS_HOOK_NOT_HANDLED;
1495 case 0x05: // Standard VGA, Cirrus extended mode
1496 default:
1497 break;
1498 }
1499
1500 if (reg_index < 0x3a) {
1501 *reg_value = s->gr[reg_index];
1502 } else {
1503 #ifdef DEBUG_CIRRUS
1504 printf("cirrus: inport gr_index %02x\n", reg_index);
1505 #endif
1506 *reg_value = 0xff;
1507 }
1508
1509 return CIRRUS_HOOK_HANDLED;
1510 }
1511
1512 static int
1513 cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1514 {
1515 #if defined(DEBUG_BITBLT) && 0
1516 printf("gr%02x: %02x\n", reg_index, reg_value);
1517 #endif
1518 switch (reg_index) {
1519 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1520 s->cirrus_shadow_gr0 = reg_value;
1521 return CIRRUS_HOOK_NOT_HANDLED;
1522 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1523 s->cirrus_shadow_gr1 = reg_value;
1524 return CIRRUS_HOOK_NOT_HANDLED;
1525 case 0x02: // Standard VGA
1526 case 0x03: // Standard VGA
1527 case 0x04: // Standard VGA
1528 case 0x06: // Standard VGA
1529 case 0x07: // Standard VGA
1530 case 0x08: // Standard VGA
1531 return CIRRUS_HOOK_NOT_HANDLED;
1532 case 0x05: // Standard VGA, Cirrus extended mode
1533 s->gr[reg_index] = reg_value & 0x7f;
1534 cirrus_update_memory_access(s);
1535 break;
1536 case 0x09: // bank offset #0
1537 case 0x0A: // bank offset #1
1538 s->gr[reg_index] = reg_value;
1539 cirrus_update_bank_ptr(s, 0);
1540 cirrus_update_bank_ptr(s, 1);
1541 cirrus_update_memory_access(s);
1542 break;
1543 case 0x0B:
1544 s->gr[reg_index] = reg_value;
1545 cirrus_update_bank_ptr(s, 0);
1546 cirrus_update_bank_ptr(s, 1);
1547 cirrus_update_memory_access(s);
1548 break;
1549 case 0x10: // BGCOLOR 0x0000ff00
1550 case 0x11: // FGCOLOR 0x0000ff00
1551 case 0x12: // BGCOLOR 0x00ff0000
1552 case 0x13: // FGCOLOR 0x00ff0000
1553 case 0x14: // BGCOLOR 0xff000000
1554 case 0x15: // FGCOLOR 0xff000000
1555 case 0x20: // BLT WIDTH 0x0000ff
1556 case 0x22: // BLT HEIGHT 0x0000ff
1557 case 0x24: // BLT DEST PITCH 0x0000ff
1558 case 0x26: // BLT SRC PITCH 0x0000ff
1559 case 0x28: // BLT DEST ADDR 0x0000ff
1560 case 0x29: // BLT DEST ADDR 0x00ff00
1561 case 0x2c: // BLT SRC ADDR 0x0000ff
1562 case 0x2d: // BLT SRC ADDR 0x00ff00
1563 case 0x2f: // BLT WRITEMASK
1564 case 0x30: // BLT MODE
1565 case 0x32: // RASTER OP
1566 case 0x33: // BLT MODEEXT
1567 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1568 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1569 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1570 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1571 s->gr[reg_index] = reg_value;
1572 break;
1573 case 0x21: // BLT WIDTH 0x001f00
1574 case 0x23: // BLT HEIGHT 0x001f00
1575 case 0x25: // BLT DEST PITCH 0x001f00
1576 case 0x27: // BLT SRC PITCH 0x001f00
1577 s->gr[reg_index] = reg_value & 0x1f;
1578 break;
1579 case 0x2a: // BLT DEST ADDR 0x3f0000
1580 s->gr[reg_index] = reg_value & 0x3f;
1581 /* if auto start mode, starts bit blt now */
1582 if (s->gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1583 cirrus_bitblt_start(s);
1584 }
1585 break;
1586 case 0x2e: // BLT SRC ADDR 0x3f0000
1587 s->gr[reg_index] = reg_value & 0x3f;
1588 break;
1589 case 0x31: // BLT STATUS/START
1590 cirrus_write_bitblt(s, reg_value);
1591 break;
1592 default:
1593 #ifdef DEBUG_CIRRUS
1594 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1595 reg_value);
1596 #endif
1597 break;
1598 }
1599
1600 return CIRRUS_HOOK_HANDLED;
1601 }
1602
1603 /***************************************
1604 *
1605 * I/O access between 0x3d4-0x3d5
1606 *
1607 ***************************************/
1608
1609 static int
1610 cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1611 {
1612 switch (reg_index) {
1613 case 0x00: // Standard VGA
1614 case 0x01: // Standard VGA
1615 case 0x02: // Standard VGA
1616 case 0x03: // Standard VGA
1617 case 0x04: // Standard VGA
1618 case 0x05: // Standard VGA
1619 case 0x06: // Standard VGA
1620 case 0x07: // Standard VGA
1621 case 0x08: // Standard VGA
1622 case 0x09: // Standard VGA
1623 case 0x0a: // Standard VGA
1624 case 0x0b: // Standard VGA
1625 case 0x0c: // Standard VGA
1626 case 0x0d: // Standard VGA
1627 case 0x0e: // Standard VGA
1628 case 0x0f: // Standard VGA
1629 case 0x10: // Standard VGA
1630 case 0x11: // Standard VGA
1631 case 0x12: // Standard VGA
1632 case 0x13: // Standard VGA
1633 case 0x14: // Standard VGA
1634 case 0x15: // Standard VGA
1635 case 0x16: // Standard VGA
1636 case 0x17: // Standard VGA
1637 case 0x18: // Standard VGA
1638 return CIRRUS_HOOK_NOT_HANDLED;
1639 case 0x24: // Attribute Controller Toggle Readback (R)
1640 *reg_value = (s->ar_flip_flop << 7);
1641 break;
1642 case 0x19: // Interlace End
1643 case 0x1a: // Miscellaneous Control
1644 case 0x1b: // Extended Display Control
1645 case 0x1c: // Sync Adjust and Genlock
1646 case 0x1d: // Overlay Extended Control
1647 case 0x22: // Graphics Data Latches Readback (R)
1648 case 0x25: // Part Status
1649 case 0x27: // Part ID (R)
1650 *reg_value = s->cr[reg_index];
1651 break;
1652 case 0x26: // Attribute Controller Index Readback (R)
1653 *reg_value = s->ar_index & 0x3f;
1654 break;
1655 default:
1656 #ifdef DEBUG_CIRRUS
1657 printf("cirrus: inport cr_index %02x\n", reg_index);
1658 *reg_value = 0xff;
1659 #endif
1660 break;
1661 }
1662
1663 return CIRRUS_HOOK_HANDLED;
1664 }
1665
1666 static int
1667 cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1668 {
1669 switch (reg_index) {
1670 case 0x00: // Standard VGA
1671 case 0x01: // Standard VGA
1672 case 0x02: // Standard VGA
1673 case 0x03: // Standard VGA
1674 case 0x04: // Standard VGA
1675 case 0x05: // Standard VGA
1676 case 0x06: // Standard VGA
1677 case 0x07: // Standard VGA
1678 case 0x08: // Standard VGA
1679 case 0x09: // Standard VGA
1680 case 0x0a: // Standard VGA
1681 case 0x0b: // Standard VGA
1682 case 0x0c: // Standard VGA
1683 case 0x0d: // Standard VGA
1684 case 0x0e: // Standard VGA
1685 case 0x0f: // Standard VGA
1686 case 0x10: // Standard VGA
1687 case 0x11: // Standard VGA
1688 case 0x12: // Standard VGA
1689 case 0x13: // Standard VGA
1690 case 0x14: // Standard VGA
1691 case 0x15: // Standard VGA
1692 case 0x16: // Standard VGA
1693 case 0x17: // Standard VGA
1694 case 0x18: // Standard VGA
1695 return CIRRUS_HOOK_NOT_HANDLED;
1696 case 0x19: // Interlace End
1697 case 0x1a: // Miscellaneous Control
1698 case 0x1b: // Extended Display Control
1699 case 0x1c: // Sync Adjust and Genlock
1700 case 0x1d: // Overlay Extended Control
1701 s->cr[reg_index] = reg_value;
1702 #ifdef DEBUG_CIRRUS
1703 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1704 reg_index, reg_value);
1705 #endif
1706 break;
1707 case 0x22: // Graphics Data Latches Readback (R)
1708 case 0x24: // Attribute Controller Toggle Readback (R)
1709 case 0x26: // Attribute Controller Index Readback (R)
1710 case 0x27: // Part ID (R)
1711 break;
1712 case 0x25: // Part Status
1713 default:
1714 #ifdef DEBUG_CIRRUS
1715 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1716 reg_value);
1717 #endif
1718 break;
1719 }
1720
1721 return CIRRUS_HOOK_HANDLED;
1722 }
1723
1724 /***************************************
1725 *
1726 * memory-mapped I/O (bitblt)
1727 *
1728 ***************************************/
1729
1730 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1731 {
1732 int value = 0xff;
1733
1734 switch (address) {
1735 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1736 cirrus_hook_read_gr(s, 0x00, &value);
1737 break;
1738 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1739 cirrus_hook_read_gr(s, 0x10, &value);
1740 break;
1741 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1742 cirrus_hook_read_gr(s, 0x12, &value);
1743 break;
1744 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1745 cirrus_hook_read_gr(s, 0x14, &value);
1746 break;
1747 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1748 cirrus_hook_read_gr(s, 0x01, &value);
1749 break;
1750 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1751 cirrus_hook_read_gr(s, 0x11, &value);
1752 break;
1753 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1754 cirrus_hook_read_gr(s, 0x13, &value);
1755 break;
1756 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1757 cirrus_hook_read_gr(s, 0x15, &value);
1758 break;
1759 case (CIRRUS_MMIO_BLTWIDTH + 0):
1760 cirrus_hook_read_gr(s, 0x20, &value);
1761 break;
1762 case (CIRRUS_MMIO_BLTWIDTH + 1):
1763 cirrus_hook_read_gr(s, 0x21, &value);
1764 break;
1765 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1766 cirrus_hook_read_gr(s, 0x22, &value);
1767 break;
1768 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1769 cirrus_hook_read_gr(s, 0x23, &value);
1770 break;
1771 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1772 cirrus_hook_read_gr(s, 0x24, &value);
1773 break;
1774 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1775 cirrus_hook_read_gr(s, 0x25, &value);
1776 break;
1777 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1778 cirrus_hook_read_gr(s, 0x26, &value);
1779 break;
1780 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1781 cirrus_hook_read_gr(s, 0x27, &value);
1782 break;
1783 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1784 cirrus_hook_read_gr(s, 0x28, &value);
1785 break;
1786 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1787 cirrus_hook_read_gr(s, 0x29, &value);
1788 break;
1789 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1790 cirrus_hook_read_gr(s, 0x2a, &value);
1791 break;
1792 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1793 cirrus_hook_read_gr(s, 0x2c, &value);
1794 break;
1795 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1796 cirrus_hook_read_gr(s, 0x2d, &value);
1797 break;
1798 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1799 cirrus_hook_read_gr(s, 0x2e, &value);
1800 break;
1801 case CIRRUS_MMIO_BLTWRITEMASK:
1802 cirrus_hook_read_gr(s, 0x2f, &value);
1803 break;
1804 case CIRRUS_MMIO_BLTMODE:
1805 cirrus_hook_read_gr(s, 0x30, &value);
1806 break;
1807 case CIRRUS_MMIO_BLTROP:
1808 cirrus_hook_read_gr(s, 0x32, &value);
1809 break;
1810 case CIRRUS_MMIO_BLTMODEEXT:
1811 cirrus_hook_read_gr(s, 0x33, &value);
1812 break;
1813 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1814 cirrus_hook_read_gr(s, 0x34, &value);
1815 break;
1816 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1817 cirrus_hook_read_gr(s, 0x35, &value);
1818 break;
1819 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1820 cirrus_hook_read_gr(s, 0x38, &value);
1821 break;
1822 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1823 cirrus_hook_read_gr(s, 0x39, &value);
1824 break;
1825 case CIRRUS_MMIO_BLTSTATUS:
1826 cirrus_hook_read_gr(s, 0x31, &value);
1827 break;
1828 default:
1829 #ifdef DEBUG_CIRRUS
1830 printf("cirrus: mmio read - address 0x%04x\n", address);
1831 #endif
1832 break;
1833 }
1834
1835 return (uint8_t) value;
1836 }
1837
1838 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1839 uint8_t value)
1840 {
1841 switch (address) {
1842 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1843 cirrus_hook_write_gr(s, 0x00, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1846 cirrus_hook_write_gr(s, 0x10, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1849 cirrus_hook_write_gr(s, 0x12, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1852 cirrus_hook_write_gr(s, 0x14, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1855 cirrus_hook_write_gr(s, 0x01, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1858 cirrus_hook_write_gr(s, 0x11, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1861 cirrus_hook_write_gr(s, 0x13, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1864 cirrus_hook_write_gr(s, 0x15, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTWIDTH + 0):
1867 cirrus_hook_write_gr(s, 0x20, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTWIDTH + 1):
1870 cirrus_hook_write_gr(s, 0x21, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1873 cirrus_hook_write_gr(s, 0x22, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1876 cirrus_hook_write_gr(s, 0x23, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1879 cirrus_hook_write_gr(s, 0x24, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1882 cirrus_hook_write_gr(s, 0x25, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1885 cirrus_hook_write_gr(s, 0x26, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1888 cirrus_hook_write_gr(s, 0x27, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1891 cirrus_hook_write_gr(s, 0x28, value);
1892 break;
1893 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1894 cirrus_hook_write_gr(s, 0x29, value);
1895 break;
1896 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1897 cirrus_hook_write_gr(s, 0x2a, value);
1898 break;
1899 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1900 /* ignored */
1901 break;
1902 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1903 cirrus_hook_write_gr(s, 0x2c, value);
1904 break;
1905 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1906 cirrus_hook_write_gr(s, 0x2d, value);
1907 break;
1908 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1909 cirrus_hook_write_gr(s, 0x2e, value);
1910 break;
1911 case CIRRUS_MMIO_BLTWRITEMASK:
1912 cirrus_hook_write_gr(s, 0x2f, value);
1913 break;
1914 case CIRRUS_MMIO_BLTMODE:
1915 cirrus_hook_write_gr(s, 0x30, value);
1916 break;
1917 case CIRRUS_MMIO_BLTROP:
1918 cirrus_hook_write_gr(s, 0x32, value);
1919 break;
1920 case CIRRUS_MMIO_BLTMODEEXT:
1921 cirrus_hook_write_gr(s, 0x33, value);
1922 break;
1923 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1924 cirrus_hook_write_gr(s, 0x34, value);
1925 break;
1926 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1927 cirrus_hook_write_gr(s, 0x35, value);
1928 break;
1929 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1930 cirrus_hook_write_gr(s, 0x38, value);
1931 break;
1932 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1933 cirrus_hook_write_gr(s, 0x39, value);
1934 break;
1935 case CIRRUS_MMIO_BLTSTATUS:
1936 cirrus_hook_write_gr(s, 0x31, value);
1937 break;
1938 default:
1939 #ifdef DEBUG_CIRRUS
1940 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1941 address, value);
1942 #endif
1943 break;
1944 }
1945 }
1946
1947 /***************************************
1948 *
1949 * write mode 4/5
1950 *
1951 * assume TARGET_PAGE_SIZE >= 16
1952 *
1953 ***************************************/
1954
1955 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1956 unsigned mode,
1957 unsigned offset,
1958 uint32_t mem_value)
1959 {
1960 int x;
1961 unsigned val = mem_value;
1962 uint8_t *dst;
1963
1964 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1965 for (x = 0; x < 8; x++) {
1966 if (val & 0x80) {
1967 *dst = s->cirrus_shadow_gr1;
1968 } else if (mode == 5) {
1969 *dst = s->cirrus_shadow_gr0;
1970 }
1971 val <<= 1;
1972 dst++;
1973 }
1974 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1975 cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
1976 }
1977
1978 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1979 unsigned mode,
1980 unsigned offset,
1981 uint32_t mem_value)
1982 {
1983 int x;
1984 unsigned val = mem_value;
1985 uint8_t *dst;
1986
1987 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1988 for (x = 0; x < 8; x++) {
1989 if (val & 0x80) {
1990 *dst = s->cirrus_shadow_gr1;
1991 *(dst + 1) = s->gr[0x11];
1992 } else if (mode == 5) {
1993 *dst = s->cirrus_shadow_gr0;
1994 *(dst + 1) = s->gr[0x10];
1995 }
1996 val <<= 1;
1997 dst += 2;
1998 }
1999 cpu_physical_memory_set_dirty(s->vram_offset + offset);
2000 cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
2001 }
2002
2003 /***************************************
2004 *
2005 * memory access between 0xa0000-0xbffff
2006 *
2007 ***************************************/
2008
2009 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
2010 {
2011 CirrusVGAState *s = opaque;
2012 unsigned bank_index;
2013 unsigned bank_offset;
2014 uint32_t val;
2015
2016 if ((s->sr[0x07] & 0x01) == 0) {
2017 return vga_mem_readb(s, addr);
2018 }
2019
2020 addr &= 0x1ffff;
2021
2022 if (addr < 0x10000) {
2023 /* XXX handle bitblt */
2024 /* video memory */
2025 bank_index = addr >> 15;
2026 bank_offset = addr & 0x7fff;
2027 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2028 bank_offset += s->cirrus_bank_base[bank_index];
2029 if ((s->gr[0x0B] & 0x14) == 0x14) {
2030 bank_offset <<= 4;
2031 } else if (s->gr[0x0B] & 0x02) {
2032 bank_offset <<= 3;
2033 }
2034 bank_offset &= s->cirrus_addr_mask;
2035 val = *(s->vram_ptr + bank_offset);
2036 } else
2037 val = 0xff;
2038 } else if (addr >= 0x18000 && addr < 0x18100) {
2039 /* memory-mapped I/O */
2040 val = 0xff;
2041 if ((s->sr[0x17] & 0x44) == 0x04) {
2042 val = cirrus_mmio_blt_read(s, addr & 0xff);
2043 }
2044 } else {
2045 val = 0xff;
2046 #ifdef DEBUG_CIRRUS
2047 printf("cirrus: mem_readb %06x\n", addr);
2048 #endif
2049 }
2050 return val;
2051 }
2052
2053 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2054 {
2055 uint32_t v;
2056 #ifdef TARGET_WORDS_BIGENDIAN
2057 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2058 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2059 #else
2060 v = cirrus_vga_mem_readb(opaque, addr);
2061 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2062 #endif
2063 return v;
2064 }
2065
2066 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2067 {
2068 uint32_t v;
2069 #ifdef TARGET_WORDS_BIGENDIAN
2070 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2071 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2072 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2073 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2074 #else
2075 v = cirrus_vga_mem_readb(opaque, addr);
2076 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2077 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2078 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2079 #endif
2080 return v;
2081 }
2082
2083 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2084 uint32_t mem_value)
2085 {
2086 CirrusVGAState *s = opaque;
2087 unsigned bank_index;
2088 unsigned bank_offset;
2089 unsigned mode;
2090
2091 if ((s->sr[0x07] & 0x01) == 0) {
2092 vga_mem_writeb(s, addr, mem_value);
2093 return;
2094 }
2095
2096 addr &= 0x1ffff;
2097
2098 if (addr < 0x10000) {
2099 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2100 /* bitblt */
2101 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2102 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2103 cirrus_bitblt_cputovideo_next(s);
2104 }
2105 } else {
2106 /* video memory */
2107 bank_index = addr >> 15;
2108 bank_offset = addr & 0x7fff;
2109 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2110 bank_offset += s->cirrus_bank_base[bank_index];
2111 if ((s->gr[0x0B] & 0x14) == 0x14) {
2112 bank_offset <<= 4;
2113 } else if (s->gr[0x0B] & 0x02) {
2114 bank_offset <<= 3;
2115 }
2116 bank_offset &= s->cirrus_addr_mask;
2117 mode = s->gr[0x05] & 0x7;
2118 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2119 *(s->vram_ptr + bank_offset) = mem_value;
2120 cpu_physical_memory_set_dirty(s->vram_offset +
2121 bank_offset);
2122 } else {
2123 if ((s->gr[0x0B] & 0x14) != 0x14) {
2124 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2125 bank_offset,
2126 mem_value);
2127 } else {
2128 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2129 bank_offset,
2130 mem_value);
2131 }
2132 }
2133 }
2134 }
2135 } else if (addr >= 0x18000 && addr < 0x18100) {
2136 /* memory-mapped I/O */
2137 if ((s->sr[0x17] & 0x44) == 0x04) {
2138 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2139 }
2140 } else {
2141 #ifdef DEBUG_CIRRUS
2142 printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
2143 #endif
2144 }
2145 }
2146
2147 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2148 {
2149 #ifdef TARGET_WORDS_BIGENDIAN
2150 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2151 cirrus_vga_mem_writeb(opaque, addr + 1, 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 #endif
2156 }
2157
2158 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2159 {
2160 #ifdef TARGET_WORDS_BIGENDIAN
2161 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2162 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2163 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2164 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2165 #else
2166 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2167 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2168 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2169 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2170 #endif
2171 }
2172
2173 static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
2174 cirrus_vga_mem_readb,
2175 cirrus_vga_mem_readw,
2176 cirrus_vga_mem_readl,
2177 };
2178
2179 static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
2180 cirrus_vga_mem_writeb,
2181 cirrus_vga_mem_writew,
2182 cirrus_vga_mem_writel,
2183 };
2184
2185 /***************************************
2186 *
2187 * hardware cursor
2188 *
2189 ***************************************/
2190
2191 static inline void invalidate_cursor1(CirrusVGAState *s)
2192 {
2193 if (s->last_hw_cursor_size) {
2194 vga_invalidate_scanlines((VGAState *)s,
2195 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2196 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2197 }
2198 }
2199
2200 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2201 {
2202 const uint8_t *src;
2203 uint32_t content;
2204 int y, y_min, y_max;
2205
2206 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2207 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2208 src += (s->sr[0x13] & 0x3c) * 256;
2209 y_min = 64;
2210 y_max = -1;
2211 for(y = 0; y < 64; y++) {
2212 content = ((uint32_t *)src)[0] |
2213 ((uint32_t *)src)[1] |
2214 ((uint32_t *)src)[2] |
2215 ((uint32_t *)src)[3];
2216 if (content) {
2217 if (y < y_min)
2218 y_min = y;
2219 if (y > y_max)
2220 y_max = y;
2221 }
2222 src += 16;
2223 }
2224 } else {
2225 src += (s->sr[0x13] & 0x3f) * 256;
2226 y_min = 32;
2227 y_max = -1;
2228 for(y = 0; y < 32; y++) {
2229 content = ((uint32_t *)src)[0] |
2230 ((uint32_t *)(src + 128))[0];
2231 if (content) {
2232 if (y < y_min)
2233 y_min = y;
2234 if (y > y_max)
2235 y_max = y;
2236 }
2237 src += 4;
2238 }
2239 }
2240 if (y_min > y_max) {
2241 s->last_hw_cursor_y_start = 0;
2242 s->last_hw_cursor_y_end = 0;
2243 } else {
2244 s->last_hw_cursor_y_start = y_min;
2245 s->last_hw_cursor_y_end = y_max + 1;
2246 }
2247 }
2248
2249 /* NOTE: we do not currently handle the cursor bitmap change, so we
2250 update the cursor only if it moves. */
2251 static void cirrus_cursor_invalidate(VGAState *s1)
2252 {
2253 CirrusVGAState *s = (CirrusVGAState *)s1;
2254 int size;
2255
2256 if (!s->sr[0x12] & CIRRUS_CURSOR_SHOW) {
2257 size = 0;
2258 } else {
2259 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE)
2260 size = 64;
2261 else
2262 size = 32;
2263 }
2264 /* invalidate last cursor and new cursor if any change */
2265 if (s->last_hw_cursor_size != size ||
2266 s->last_hw_cursor_x != s->hw_cursor_x ||
2267 s->last_hw_cursor_y != s->hw_cursor_y) {
2268
2269 invalidate_cursor1(s);
2270
2271 s->last_hw_cursor_size = size;
2272 s->last_hw_cursor_x = s->hw_cursor_x;
2273 s->last_hw_cursor_y = s->hw_cursor_y;
2274 /* compute the real cursor min and max y */
2275 cirrus_cursor_compute_yrange(s);
2276 invalidate_cursor1(s);
2277 }
2278 }
2279
2280 static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2281 {
2282 CirrusVGAState *s = (CirrusVGAState *)s1;
2283 int w, h, bpp, x1, x2, poffset;
2284 unsigned int color0, color1;
2285 const uint8_t *palette, *src;
2286 uint32_t content;
2287
2288 if (!(s->sr[0x12] & CIRRUS_CURSOR_SHOW))
2289 return;
2290 /* fast test to see if the cursor intersects with the scan line */
2291 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2292 h = 64;
2293 } else {
2294 h = 32;
2295 }
2296 if (scr_y < s->hw_cursor_y ||
2297 scr_y >= (s->hw_cursor_y + h))
2298 return;
2299
2300 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2301 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2302 src += (s->sr[0x13] & 0x3c) * 256;
2303 src += (scr_y - s->hw_cursor_y) * 16;
2304 poffset = 8;
2305 content = ((uint32_t *)src)[0] |
2306 ((uint32_t *)src)[1] |
2307 ((uint32_t *)src)[2] |
2308 ((uint32_t *)src)[3];
2309 } else {
2310 src += (s->sr[0x13] & 0x3f) * 256;
2311 src += (scr_y - s->hw_cursor_y) * 4;
2312 poffset = 128;
2313 content = ((uint32_t *)src)[0] |
2314 ((uint32_t *)(src + 128))[0];
2315 }
2316 /* if nothing to draw, no need to continue */
2317 if (!content)
2318 return;
2319 w = h;
2320
2321 x1 = s->hw_cursor_x;
2322 if (x1 >= s->last_scr_width)
2323 return;
2324 x2 = s->hw_cursor_x + w;
2325 if (x2 > s->last_scr_width)
2326 x2 = s->last_scr_width;
2327 w = x2 - x1;
2328 palette = s->cirrus_hidden_palette;
2329 color0 = s->rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2330 c6_to_8(palette[0x0 * 3 + 1]),
2331 c6_to_8(palette[0x0 * 3 + 2]));
2332 color1 = s->rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2333 c6_to_8(palette[0xf * 3 + 1]),
2334 c6_to_8(palette[0xf * 3 + 2]));
2335 bpp = ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);
2336 d1 += x1 * bpp;
2337 switch(ds_get_bits_per_pixel(s->ds)) {
2338 default:
2339 break;
2340 case 8:
2341 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2342 break;
2343 case 15:
2344 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2345 break;
2346 case 16:
2347 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2348 break;
2349 case 32:
2350 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2351 break;
2352 }
2353 }
2354
2355 /***************************************
2356 *
2357 * LFB memory access
2358 *
2359 ***************************************/
2360
2361 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2362 {
2363 CirrusVGAState *s = (CirrusVGAState *) opaque;
2364 uint32_t ret;
2365
2366 addr &= s->cirrus_addr_mask;
2367
2368 if (((s->sr[0x17] & 0x44) == 0x44) &&
2369 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2370 /* memory-mapped I/O */
2371 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2372 } else if (0) {
2373 /* XXX handle bitblt */
2374 ret = 0xff;
2375 } else {
2376 /* video memory */
2377 if ((s->gr[0x0B] & 0x14) == 0x14) {
2378 addr <<= 4;
2379 } else if (s->gr[0x0B] & 0x02) {
2380 addr <<= 3;
2381 }
2382 addr &= s->cirrus_addr_mask;
2383 ret = *(s->vram_ptr + addr);
2384 }
2385
2386 return ret;
2387 }
2388
2389 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2390 {
2391 uint32_t v;
2392 #ifdef TARGET_WORDS_BIGENDIAN
2393 v = cirrus_linear_readb(opaque, addr) << 8;
2394 v |= cirrus_linear_readb(opaque, addr + 1);
2395 #else
2396 v = cirrus_linear_readb(opaque, addr);
2397 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2398 #endif
2399 return v;
2400 }
2401
2402 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2403 {
2404 uint32_t v;
2405 #ifdef TARGET_WORDS_BIGENDIAN
2406 v = cirrus_linear_readb(opaque, addr) << 24;
2407 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2408 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2409 v |= cirrus_linear_readb(opaque, addr + 3);
2410 #else
2411 v = cirrus_linear_readb(opaque, addr);
2412 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2413 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2414 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2415 #endif
2416 return v;
2417 }
2418
2419 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2420 uint32_t val)
2421 {
2422 CirrusVGAState *s = (CirrusVGAState *) opaque;
2423 unsigned mode;
2424
2425 addr &= s->cirrus_addr_mask;
2426
2427 if (((s->sr[0x17] & 0x44) == 0x44) &&
2428 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2429 /* memory-mapped I/O */
2430 cirrus_mmio_blt_write(s, addr & 0xff, val);
2431 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2432 /* bitblt */
2433 *s->cirrus_srcptr++ = (uint8_t) val;
2434 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2435 cirrus_bitblt_cputovideo_next(s);
2436 }
2437 } else {
2438 /* video memory */
2439 if ((s->gr[0x0B] & 0x14) == 0x14) {
2440 addr <<= 4;
2441 } else if (s->gr[0x0B] & 0x02) {
2442 addr <<= 3;
2443 }
2444 addr &= s->cirrus_addr_mask;
2445
2446 mode = s->gr[0x05] & 0x7;
2447 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2448 *(s->vram_ptr + addr) = (uint8_t) val;
2449 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2450 } else {
2451 if ((s->gr[0x0B] & 0x14) != 0x14) {
2452 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2453 } else {
2454 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2455 }
2456 }
2457 }
2458 }
2459
2460 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2461 uint32_t val)
2462 {
2463 #ifdef TARGET_WORDS_BIGENDIAN
2464 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2465 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2466 #else
2467 cirrus_linear_writeb(opaque, addr, val & 0xff);
2468 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2469 #endif
2470 }
2471
2472 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2473 uint32_t val)
2474 {
2475 #ifdef TARGET_WORDS_BIGENDIAN
2476 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2477 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2478 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2479 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2480 #else
2481 cirrus_linear_writeb(opaque, addr, val & 0xff);
2482 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2483 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2484 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2485 #endif
2486 }
2487
2488
2489 static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2490 cirrus_linear_readb,
2491 cirrus_linear_readw,
2492 cirrus_linear_readl,
2493 };
2494
2495 static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2496 cirrus_linear_writeb,
2497 cirrus_linear_writew,
2498 cirrus_linear_writel,
2499 };
2500
2501 static void cirrus_linear_mem_writeb(void *opaque, target_phys_addr_t addr,
2502 uint32_t val)
2503 {
2504 CirrusVGAState *s = (CirrusVGAState *) opaque;
2505
2506 addr &= s->cirrus_addr_mask;
2507 *(s->vram_ptr + addr) = val;
2508 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2509 }
2510
2511 static void cirrus_linear_mem_writew(void *opaque, target_phys_addr_t addr,
2512 uint32_t val)
2513 {
2514 CirrusVGAState *s = (CirrusVGAState *) opaque;
2515
2516 addr &= s->cirrus_addr_mask;
2517 cpu_to_le16w((uint16_t *)(s->vram_ptr + addr), val);
2518 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2519 }
2520
2521 static void cirrus_linear_mem_writel(void *opaque, target_phys_addr_t addr,
2522 uint32_t val)
2523 {
2524 CirrusVGAState *s = (CirrusVGAState *) opaque;
2525
2526 addr &= s->cirrus_addr_mask;
2527 cpu_to_le32w((uint32_t *)(s->vram_ptr + addr), val);
2528 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2529 }
2530
2531 /***************************************
2532 *
2533 * system to screen memory access
2534 *
2535 ***************************************/
2536
2537
2538 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2539 {
2540 uint32_t ret;
2541
2542 /* XXX handle bitblt */
2543 ret = 0xff;
2544 return ret;
2545 }
2546
2547 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2548 {
2549 uint32_t v;
2550 #ifdef TARGET_WORDS_BIGENDIAN
2551 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2552 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2553 #else
2554 v = cirrus_linear_bitblt_readb(opaque, addr);
2555 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2556 #endif
2557 return v;
2558 }
2559
2560 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2561 {
2562 uint32_t v;
2563 #ifdef TARGET_WORDS_BIGENDIAN
2564 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2565 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2566 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2567 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2568 #else
2569 v = cirrus_linear_bitblt_readb(opaque, addr);
2570 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2571 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2572 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2573 #endif
2574 return v;
2575 }
2576
2577 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2578 uint32_t val)
2579 {
2580 CirrusVGAState *s = (CirrusVGAState *) opaque;
2581
2582 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2583 /* bitblt */
2584 *s->cirrus_srcptr++ = (uint8_t) val;
2585 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2586 cirrus_bitblt_cputovideo_next(s);
2587 }
2588 }
2589 }
2590
2591 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2592 uint32_t val)
2593 {
2594 #ifdef TARGET_WORDS_BIGENDIAN
2595 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2596 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2597 #else
2598 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2599 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2600 #endif
2601 }
2602
2603 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2604 uint32_t val)
2605 {
2606 #ifdef TARGET_WORDS_BIGENDIAN
2607 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2608 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2609 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2610 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2611 #else
2612 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2613 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2614 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2615 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2616 #endif
2617 }
2618
2619
2620 static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2621 cirrus_linear_bitblt_readb,
2622 cirrus_linear_bitblt_readw,
2623 cirrus_linear_bitblt_readl,
2624 };
2625
2626 static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2627 cirrus_linear_bitblt_writeb,
2628 cirrus_linear_bitblt_writew,
2629 cirrus_linear_bitblt_writel,
2630 };
2631
2632 static void map_linear_vram(CirrusVGAState *s)
2633 {
2634
2635 if (!s->map_addr && s->lfb_addr && s->lfb_end) {
2636 s->map_addr = s->lfb_addr;
2637 s->map_end = s->lfb_end;
2638 cpu_register_physical_memory(s->map_addr, s->map_end - s->map_addr, s->vram_offset);
2639 vga_dirty_log_start((VGAState *)s);
2640 }
2641
2642 if (!s->map_addr)
2643 return;
2644
2645 s->lfb_vram_mapped = 0;
2646
2647 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2648 && !((s->sr[0x07] & 0x01) == 0)
2649 && !((s->gr[0x0B] & 0x14) == 0x14)
2650 && !(s->gr[0x0B] & 0x02)) {
2651
2652 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2653 (s->vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2654 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2655 (s->vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2656
2657 s->lfb_vram_mapped = 1;
2658 vga_dirty_log_start((VGAState *)s);
2659 }
2660 else {
2661 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000, s->vga_io_memory);
2662 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000, s->vga_io_memory);
2663 }
2664
2665 }
2666
2667 static void unmap_linear_vram(CirrusVGAState *s)
2668 {
2669 if (s->map_addr && s->lfb_addr && s->lfb_end) {
2670 vga_dirty_log_stop((VGAState *)s);
2671 s->map_addr = s->map_end = 0;
2672 }
2673
2674 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2675 s->vga_io_memory);
2676 }
2677
2678 /* Compute the memory access functions */
2679 static void cirrus_update_memory_access(CirrusVGAState *s)
2680 {
2681 unsigned mode;
2682
2683 if ((s->sr[0x17] & 0x44) == 0x44) {
2684 goto generic_io;
2685 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2686 goto generic_io;
2687 } else {
2688 if ((s->gr[0x0B] & 0x14) == 0x14) {
2689 goto generic_io;
2690 } else if (s->gr[0x0B] & 0x02) {
2691 goto generic_io;
2692 }
2693
2694 mode = s->gr[0x05] & 0x7;
2695 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2696 map_linear_vram(s);
2697 s->cirrus_linear_write[0] = cirrus_linear_mem_writeb;
2698 s->cirrus_linear_write[1] = cirrus_linear_mem_writew;
2699 s->cirrus_linear_write[2] = cirrus_linear_mem_writel;
2700 } else {
2701 generic_io:
2702 unmap_linear_vram(s);
2703 s->cirrus_linear_write[0] = cirrus_linear_writeb;
2704 s->cirrus_linear_write[1] = cirrus_linear_writew;
2705 s->cirrus_linear_write[2] = cirrus_linear_writel;
2706 }
2707 }
2708 }
2709
2710
2711 /* I/O ports */
2712
2713 static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2714 {
2715 CirrusVGAState *s = opaque;
2716 int val, index;
2717
2718 /* check port range access depending on color/monochrome mode */
2719 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2720 || (addr >= 0x3d0 && addr <= 0x3df
2721 && !(s->msr & MSR_COLOR_EMULATION))) {
2722 val = 0xff;
2723 } else {
2724 switch (addr) {
2725 case 0x3c0:
2726 if (s->ar_flip_flop == 0) {
2727 val = s->ar_index;
2728 } else {
2729 val = 0;
2730 }
2731 break;
2732 case 0x3c1:
2733 index = s->ar_index & 0x1f;
2734 if (index < 21)
2735 val = s->ar[index];
2736 else
2737 val = 0;
2738 break;
2739 case 0x3c2:
2740 val = s->st00;
2741 break;
2742 case 0x3c4:
2743 val = s->sr_index;
2744 break;
2745 case 0x3c5:
2746 if (cirrus_hook_read_sr(s, s->sr_index, &val))
2747 break;
2748 val = s->sr[s->sr_index];
2749 #ifdef DEBUG_VGA_REG
2750 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2751 #endif
2752 break;
2753 case 0x3c6:
2754 cirrus_read_hidden_dac(s, &val);
2755 break;
2756 case 0x3c7:
2757 val = s->dac_state;
2758 break;
2759 case 0x3c8:
2760 val = s->dac_write_index;
2761 s->cirrus_hidden_dac_lockindex = 0;
2762 break;
2763 case 0x3c9:
2764 if (cirrus_hook_read_palette(s, &val))
2765 break;
2766 val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
2767 if (++s->dac_sub_index == 3) {
2768 s->dac_sub_index = 0;
2769 s->dac_read_index++;
2770 }
2771 break;
2772 case 0x3ca:
2773 val = s->fcr;
2774 break;
2775 case 0x3cc:
2776 val = s->msr;
2777 break;
2778 case 0x3ce:
2779 val = s->gr_index;
2780 break;
2781 case 0x3cf:
2782 if (cirrus_hook_read_gr(s, s->gr_index, &val))
2783 break;
2784 val = s->gr[s->gr_index];
2785 #ifdef DEBUG_VGA_REG
2786 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2787 #endif
2788 break;
2789 case 0x3b4:
2790 case 0x3d4:
2791 val = s->cr_index;
2792 break;
2793 case 0x3b5:
2794 case 0x3d5:
2795 if (cirrus_hook_read_cr(s, s->cr_index, &val))
2796 break;
2797 val = s->cr[s->cr_index];
2798 #ifdef DEBUG_VGA_REG
2799 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2800 #endif
2801 break;
2802 case 0x3ba:
2803 case 0x3da:
2804 /* just toggle to fool polling */
2805 val = s->st01 = s->retrace((VGAState *) s);
2806 s->ar_flip_flop = 0;
2807 break;
2808 default:
2809 val = 0x00;
2810 break;
2811 }
2812 }
2813 #if defined(DEBUG_VGA)
2814 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2815 #endif
2816 return val;
2817 }
2818
2819 static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2820 {
2821 CirrusVGAState *s = opaque;
2822 int index;
2823
2824 /* check port range access depending on color/monochrome mode */
2825 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2826 || (addr >= 0x3d0 && addr <= 0x3df
2827 && !(s->msr & MSR_COLOR_EMULATION)))
2828 return;
2829
2830 #ifdef DEBUG_VGA
2831 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2832 #endif
2833
2834 switch (addr) {
2835 case 0x3c0:
2836 if (s->ar_flip_flop == 0) {
2837 val &= 0x3f;
2838 s->ar_index = val;
2839 } else {
2840 index = s->ar_index & 0x1f;
2841 switch (index) {
2842 case 0x00 ... 0x0f:
2843 s->ar[index] = val & 0x3f;
2844 break;
2845 case 0x10:
2846 s->ar[index] = val & ~0x10;
2847 break;
2848 case 0x11:
2849 s->ar[index] = val;
2850 break;
2851 case 0x12:
2852 s->ar[index] = val & ~0xc0;
2853 break;
2854 case 0x13:
2855 s->ar[index] = val & ~0xf0;
2856 break;
2857 case 0x14:
2858 s->ar[index] = val & ~0xf0;
2859 break;
2860 default:
2861 break;
2862 }
2863 }
2864 s->ar_flip_flop ^= 1;
2865 break;
2866 case 0x3c2:
2867 s->msr = val & ~0x10;
2868 s->update_retrace_info((VGAState *) s);
2869 break;
2870 case 0x3c4:
2871 s->sr_index = val;
2872 break;
2873 case 0x3c5:
2874 if (cirrus_hook_write_sr(s, s->sr_index, val))
2875 break;
2876 #ifdef DEBUG_VGA_REG
2877 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2878 #endif
2879 s->sr[s->sr_index] = val & sr_mask[s->sr_index];
2880 if (s->sr_index == 1) s->update_retrace_info((VGAState *) s);
2881 break;
2882 case 0x3c6:
2883 cirrus_write_hidden_dac(s, val);
2884 break;
2885 case 0x3c7:
2886 s->dac_read_index = val;
2887 s->dac_sub_index = 0;
2888 s->dac_state = 3;
2889 break;
2890 case 0x3c8:
2891 s->dac_write_index = val;
2892 s->dac_sub_index = 0;
2893 s->dac_state = 0;
2894 break;
2895 case 0x3c9:
2896 if (cirrus_hook_write_palette(s, val))
2897 break;
2898 s->dac_cache[s->dac_sub_index] = val;
2899 if (++s->dac_sub_index == 3) {
2900 memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
2901 s->dac_sub_index = 0;
2902 s->dac_write_index++;
2903 }
2904 break;
2905 case 0x3ce:
2906 s->gr_index = val;
2907 break;
2908 case 0x3cf:
2909 if (cirrus_hook_write_gr(s, s->gr_index, val))
2910 break;
2911 #ifdef DEBUG_VGA_REG
2912 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2913 #endif
2914 s->gr[s->gr_index] = val & gr_mask[s->gr_index];
2915 break;
2916 case 0x3b4:
2917 case 0x3d4:
2918 s->cr_index = val;
2919 break;
2920 case 0x3b5:
2921 case 0x3d5:
2922 if (cirrus_hook_write_cr(s, s->cr_index, val))
2923 break;
2924 #ifdef DEBUG_VGA_REG
2925 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2926 #endif
2927 /* handle CR0-7 protection */
2928 if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) {
2929 /* can always write bit 4 of CR7 */
2930 if (s->cr_index == 7)
2931 s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
2932 return;
2933 }
2934 switch (s->cr_index) {
2935 case 0x01: /* horizontal display end */
2936 case 0x07:
2937 case 0x09:
2938 case 0x0c:
2939 case 0x0d:
2940 case 0x12: /* vertical display end */
2941 s->cr[s->cr_index] = val;
2942 break;
2943
2944 default:
2945 s->cr[s->cr_index] = val;
2946 break;
2947 }
2948
2949 switch(s->cr_index) {
2950 case 0x00:
2951 case 0x04:
2952 case 0x05:
2953 case 0x06:
2954 case 0x07:
2955 case 0x11:
2956 case 0x17:
2957 s->update_retrace_info((VGAState *) s);
2958 break;
2959 }
2960 break;
2961 case 0x3ba:
2962 case 0x3da:
2963 s->fcr = val & 0x10;
2964 break;
2965 }
2966 }
2967
2968 /***************************************
2969 *
2970 * memory-mapped I/O access
2971 *
2972 ***************************************/
2973
2974 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2975 {
2976 CirrusVGAState *s = (CirrusVGAState *) opaque;
2977
2978 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2979
2980 if (addr >= 0x100) {
2981 return cirrus_mmio_blt_read(s, addr - 0x100);
2982 } else {
2983 return vga_ioport_read(s, addr + 0x3c0);
2984 }
2985 }
2986
2987 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2988 {
2989 uint32_t v;
2990 #ifdef TARGET_WORDS_BIGENDIAN
2991 v = cirrus_mmio_readb(opaque, addr) << 8;
2992 v |= cirrus_mmio_readb(opaque, addr + 1);
2993 #else
2994 v = cirrus_mmio_readb(opaque, addr);
2995 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2996 #endif
2997 return v;
2998 }
2999
3000 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
3001 {
3002 uint32_t v;
3003 #ifdef TARGET_WORDS_BIGENDIAN
3004 v = cirrus_mmio_readb(opaque, addr) << 24;
3005 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
3006 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
3007 v |= cirrus_mmio_readb(opaque, addr + 3);
3008 #else
3009 v = cirrus_mmio_readb(opaque, addr);
3010 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
3011 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
3012 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
3013 #endif
3014 return v;
3015 }
3016
3017 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
3018 uint32_t val)
3019 {
3020 CirrusVGAState *s = (CirrusVGAState *) opaque;
3021
3022 addr &= CIRRUS_PNPMMIO_SIZE - 1;
3023
3024 if (addr >= 0x100) {
3025 cirrus_mmio_blt_write(s, addr - 0x100, val);
3026 } else {
3027 vga_ioport_write(s, addr + 0x3c0, val);
3028 }
3029 }
3030
3031 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
3032 uint32_t val)
3033 {
3034 #ifdef TARGET_WORDS_BIGENDIAN
3035 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
3036 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
3037 #else
3038 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3039 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3040 #endif
3041 }
3042
3043 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
3044 uint32_t val)
3045 {
3046 #ifdef TARGET_WORDS_BIGENDIAN
3047 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
3048 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
3049 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
3050 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
3051 #else
3052 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3053 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3054 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
3055 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
3056 #endif
3057 }
3058
3059
3060 static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
3061 cirrus_mmio_readb,
3062 cirrus_mmio_readw,
3063 cirrus_mmio_readl,
3064 };
3065
3066 static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
3067 cirrus_mmio_writeb,
3068 cirrus_mmio_writew,
3069 cirrus_mmio_writel,
3070 };
3071
3072 /* load/save state */
3073
3074 static void cirrus_vga_save(QEMUFile *f, void *opaque)
3075 {
3076 CirrusVGAState *s = opaque;
3077
3078 if (s->pci_dev)
3079 pci_device_save(s->pci_dev, f);
3080
3081 qemu_put_be32s(f, &s->latch);
3082 qemu_put_8s(f, &s->sr_index);
3083 qemu_put_buffer(f, s->sr, 256);
3084 qemu_put_8s(f, &s->gr_index);
3085 qemu_put_8s(f, &s->cirrus_shadow_gr0);
3086 qemu_put_8s(f, &s->cirrus_shadow_gr1);
3087 qemu_put_buffer(f, s->gr + 2, 254);
3088 qemu_put_8s(f, &s->ar_index);
3089 qemu_put_buffer(f, s->ar, 21);
3090 qemu_put_be32(f, s->ar_flip_flop);
3091 qemu_put_8s(f, &s->cr_index);
3092 qemu_put_buffer(f, s->cr, 256);
3093 qemu_put_8s(f, &s->msr);
3094 qemu_put_8s(f, &s->fcr);
3095 qemu_put_8s(f, &s->st00);
3096 qemu_put_8s(f, &s->st01);
3097
3098 qemu_put_8s(f, &s->dac_state);
3099 qemu_put_8s(f, &s->dac_sub_index);
3100 qemu_put_8s(f, &s->dac_read_index);
3101 qemu_put_8s(f, &s->dac_write_index);
3102 qemu_put_buffer(f, s->dac_cache, 3);
3103 qemu_put_buffer(f, s->palette, 768);
3104
3105 qemu_put_be32(f, s->bank_offset);
3106
3107 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
3108 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
3109
3110 qemu_put_be32s(f, &s->hw_cursor_x);
3111 qemu_put_be32s(f, &s->hw_cursor_y);
3112 /* XXX: we do not save the bitblt state - we assume we do not save
3113 the state when the blitter is active */
3114 }
3115
3116 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3117 {
3118 CirrusVGAState *s = opaque;
3119 int ret;
3120
3121 if (version_id > 2)
3122 return -EINVAL;
3123
3124 if (s->pci_dev && version_id >= 2) {
3125 ret = pci_device_load(s->pci_dev, f);
3126 if (ret < 0)
3127 return ret;
3128 }
3129
3130 qemu_get_be32s(f, &s->latch);
3131 qemu_get_8s(f, &s->sr_index);
3132 qemu_get_buffer(f, s->sr, 256);
3133 qemu_get_8s(f, &s->gr_index);
3134 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3135 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3136 s->gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3137 s->gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3138 qemu_get_buffer(f, s->gr + 2, 254);
3139 qemu_get_8s(f, &s->ar_index);
3140 qemu_get_buffer(f, s->ar, 21);
3141 s->ar_flip_flop=qemu_get_be32(f);
3142 qemu_get_8s(f, &s->cr_index);
3143 qemu_get_buffer(f, s->cr, 256);
3144 qemu_get_8s(f, &s->msr);
3145 qemu_get_8s(f, &s->fcr);
3146 qemu_get_8s(f, &s->st00);
3147 qemu_get_8s(f, &s->st01);
3148
3149 qemu_get_8s(f, &s->dac_state);
3150 qemu_get_8s(f, &s->dac_sub_index);
3151 qemu_get_8s(f, &s->dac_read_index);
3152 qemu_get_8s(f, &s->dac_write_index);
3153 qemu_get_buffer(f, s->dac_cache, 3);
3154 qemu_get_buffer(f, s->palette, 768);
3155
3156 s->bank_offset=qemu_get_be32(f);
3157
3158 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3159 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3160
3161 qemu_get_be32s(f, &s->hw_cursor_x);
3162 qemu_get_be32s(f, &s->hw_cursor_y);
3163
3164 cirrus_update_memory_access(s);
3165 /* force refresh */
3166 s->graphic_mode = -1;
3167 cirrus_update_bank_ptr(s, 0);
3168 cirrus_update_bank_ptr(s, 1);
3169 return 0;
3170 }
3171
3172 /***************************************
3173 *
3174 * initialize
3175 *
3176 ***************************************/
3177
3178 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3179 {
3180 int i;
3181 static int inited;
3182
3183 if (!inited) {
3184 inited = 1;
3185 for(i = 0;i < 256; i++)
3186 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3187 rop_to_index[CIRRUS_ROP_0] = 0;
3188 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3189 rop_to_index[CIRRUS_ROP_NOP] = 2;
3190 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3191 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3192 rop_to_index[CIRRUS_ROP_SRC] = 5;
3193 rop_to_index[CIRRUS_ROP_1] = 6;
3194 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3195 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3196 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3197 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3198 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3199 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3200 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3201 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3202 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3203 }
3204
3205 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
3206
3207 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
3208 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
3209 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
3210 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
3211
3212 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
3213
3214 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
3215 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
3216 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
3217 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
3218
3219 s->vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
3220 cirrus_vga_mem_write, s);
3221 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3222 s->vga_io_memory);
3223 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3224
3225 s->sr[0x06] = 0x0f;
3226 if (device_id == CIRRUS_ID_CLGD5446) {
3227 /* 4MB 64 bit memory config, always PCI */
3228 s->sr[0x1F] = 0x2d; // MemClock
3229 s->gr[0x18] = 0x0f; // fastest memory configuration
3230 #if 1
3231 s->sr[0x0f] = 0x98;
3232 s->sr[0x17] = 0x20;
3233 s->sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3234 s->real_vram_size = 4096 * 1024;
3235 #else
3236 s->sr[0x0f] = 0x18;
3237 s->sr[0x17] = 0x20;
3238 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3239 s->real_vram_size = 2048 * 1024;
3240 #endif
3241 } else {
3242 s->sr[0x1F] = 0x22; // MemClock
3243 s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
3244 if (is_pci)
3245 s->sr[0x17] = CIRRUS_BUSTYPE_PCI;
3246 else
3247 s->sr[0x17] = CIRRUS_BUSTYPE_ISA;
3248 s->real_vram_size = 2048 * 1024;
3249 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3250 }
3251 s->cr[0x27] = device_id;
3252
3253 /* Win2K seems to assume that the pattern buffer is at 0xff
3254 initially ! */
3255 memset(s->vram_ptr, 0xff, s->real_vram_size);
3256
3257 s->cirrus_hidden_dac_lockindex = 5;
3258 s->cirrus_hidden_dac_data = 0;
3259
3260 /* I/O handler for LFB */
3261 s->cirrus_linear_io_addr =
3262 cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write,
3263 s);
3264 s->cirrus_linear_write = cpu_get_io_memory_write(s->cirrus_linear_io_addr);
3265
3266 /* I/O handler for LFB */
3267 s->cirrus_linear_bitblt_io_addr =
3268 cpu_register_io_memory(0, cirrus_linear_bitblt_read, cirrus_linear_bitblt_write,
3269 s);
3270
3271 /* I/O handler for memory-mapped I/O */
3272 s->cirrus_mmio_io_addr =
3273 cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
3274
3275 /* XXX: s->vram_size must be a power of two */
3276 s->cirrus_addr_mask = s->real_vram_size - 1;
3277 s->linear_mmio_mask = s->real_vram_size - 256;
3278
3279 s->get_bpp = cirrus_get_bpp;
3280 s->get_offsets = cirrus_get_offsets;
3281 s->get_resolution = cirrus_get_resolution;
3282 s->cursor_invalidate = cirrus_cursor_invalidate;
3283 s->cursor_draw_line = cirrus_cursor_draw_line;
3284
3285 register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
3286 }
3287
3288 /***************************************
3289 *
3290 * ISA bus support
3291 *
3292 ***************************************/
3293
3294 void isa_cirrus_vga_init(DisplayState *ds, uint8_t *vga_ram_base,
3295 ram_addr_t vga_ram_offset, int vga_ram_size)
3296 {
3297 CirrusVGAState *s;
3298
3299 s = qemu_mallocz(sizeof(CirrusVGAState));
3300
3301 vga_common_init((VGAState *)s,
3302 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
3303 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3304 s->console = graphic_console_init(s->ds, s->update, s->invalidate,
3305 s->screen_dump, s->text_update, s);
3306 /* XXX ISA-LFB support */
3307 }
3308
3309 /***************************************
3310 *
3311 * PCI bus support
3312 *
3313 ***************************************/
3314
3315 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3316 uint32_t addr, uint32_t size, int type)
3317 {
3318 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3319
3320 /* XXX: add byte swapping apertures */
3321 cpu_register_physical_memory(addr, s->vram_size,
3322 s->cirrus_linear_io_addr);
3323 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3324 s->cirrus_linear_bitblt_io_addr);
3325
3326 s->map_addr = s->map_end = 0;
3327 s->lfb_addr = addr & TARGET_PAGE_MASK;
3328 s->lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3329 /* account for overflow */
3330 if (s->lfb_end < addr + VGA_RAM_SIZE)
3331 s->lfb_end = addr + VGA_RAM_SIZE;
3332 }
3333
3334 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3335 uint32_t addr, uint32_t size, int type)
3336 {
3337 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3338
3339 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3340 s->cirrus_mmio_io_addr);
3341 }
3342
3343 void pci_cirrus_vga_init(PCIBus *bus, DisplayState *ds, uint8_t *vga_ram_base,
3344 ram_addr_t vga_ram_offset, int vga_ram_size)
3345 {
3346 PCICirrusVGAState *d;
3347 uint8_t *pci_conf;
3348 CirrusVGAState *s;
3349 int device_id;
3350
3351 device_id = CIRRUS_ID_CLGD5446;
3352
3353 /* setup PCI configuration registers */
3354 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
3355 sizeof(PCICirrusVGAState),
3356 -1, NULL, NULL);
3357 pci_conf = d->dev.config;
3358 pci_conf[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS & 0xff);
3359 pci_conf[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS >> 8);
3360 pci_conf[0x02] = (uint8_t) (device_id & 0xff);
3361 pci_conf[0x03] = (uint8_t) (device_id >> 8);
3362 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3363 pci_conf[0x0a] = PCI_CLASS_SUB_VGA;
3364 pci_conf[0x0b] = PCI_CLASS_BASE_DISPLAY;
3365 pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
3366
3367 /* setup VGA */
3368 s = &d->cirrus_vga;
3369 vga_common_init((VGAState *)s,
3370 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
3371 cirrus_init_common(s, device_id, 1);
3372
3373 s->console = graphic_console_init(s->ds, s->update, s->invalidate,
3374 s->screen_dump, s->text_update, s);
3375
3376 s->pci_dev = (PCIDevice *)d;
3377
3378 /* setup memory space */
3379 /* memory #0 LFB */
3380 /* memory #1 memory-mapped I/O */
3381 /* XXX: s->vram_size must be a power of two */
3382 pci_register_io_region((PCIDevice *)d, 0, 0x2000000,
3383 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3384 if (device_id == CIRRUS_ID_CLGD5446) {
3385 pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3386 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3387 }
3388 /* XXX: ROM BIOS */
3389 }