?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
target-ppc: Model e500v{1,2} CPUs more accurately
[qemu/mini2440/sniper_sniper_test.git] / hw / cirrus_vga.c
blobd261e40eba1e2be177b903c513c163c06ad1f33a
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 0x02: device
177 #define PCI_DEVICE_CLGD5462 0x00d0
178 #define PCI_DEVICE_CLGD5465 0x00d6
179
180 // PCI 0x04: command(word), 0x06(word): status
181 #define PCI_COMMAND_IOACCESS 0x0001
182 #define PCI_COMMAND_MEMACCESS 0x0002
183 #define PCI_COMMAND_BUSMASTER 0x0004
184 #define PCI_COMMAND_SPECIALCYCLE 0x0008
185 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
186 #define PCI_COMMAND_PALETTESNOOPING 0x0020
187 #define PCI_COMMAND_PARITYDETECTION 0x0040
188 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
189 #define PCI_COMMAND_SERR 0x0100
190 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
191 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
192 #define PCI_CLASS_BASE_DISPLAY 0x03
193 // PCI 0x08, 0x00ff0000
194 #define PCI_CLASS_SUB_VGA 0x00
195 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
196 #define PCI_CLASS_HEADERTYPE_00h 0x00
197 // 0x10-0x3f (headertype 00h)
198 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
199 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
200 #define PCI_MAP_MEM 0x0
201 #define PCI_MAP_IO 0x1
202 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
203 #define PCI_MAP_IO_ADDR_MASK (~0x3)
204 #define PCI_MAP_MEMFLAGS_32BIT 0x0
205 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
206 #define PCI_MAP_MEMFLAGS_64BIT 0x4
207 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
208 // PCI 0x28: cardbus CIS pointer
209 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
210 // PCI 0x30: expansion ROM base address
211 #define PCI_ROMBIOS_ENABLED 0x1
212 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
213 // PCI 0x38: reserved
214 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
215
216 #define CIRRUS_PNPMMIO_SIZE 0x1000
217
218
219 /* I/O and memory hook */
220 #define CIRRUS_HOOK_NOT_HANDLED 0
221 #define CIRRUS_HOOK_HANDLED 1
222
223 #define ABS(a) ((signed)(a) > 0 ? a : -a)
224
225 #define BLTUNSAFE(s) \
226 ( \
227 ( /* check dst is within bounds */ \
228 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
229 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
230 (s)->vram_size \
231 ) || \
232 ( /* check src is within bounds */ \
233 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
234 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
235 (s)->vram_size \
236 ) \
237 )
238
239 struct CirrusVGAState;
240 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
241 uint8_t * dst, const uint8_t * src,
242 int dstpitch, int srcpitch,
243 int bltwidth, int bltheight);
244 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
245 uint8_t *dst, int dst_pitch, int width, int height);
246
247 typedef struct CirrusVGAState {
248 VGA_STATE_COMMON
249
250 int cirrus_linear_io_addr;
251 int cirrus_linear_bitblt_io_addr;
252 int cirrus_mmio_io_addr;
253 uint32_t cirrus_addr_mask;
254 uint32_t linear_mmio_mask;
255 uint8_t cirrus_shadow_gr0;
256 uint8_t cirrus_shadow_gr1;
257 uint8_t cirrus_hidden_dac_lockindex;
258 uint8_t cirrus_hidden_dac_data;
259 uint32_t cirrus_bank_base[2];
260 uint32_t cirrus_bank_limit[2];
261 uint8_t cirrus_hidden_palette[48];
262 uint32_t hw_cursor_x;
263 uint32_t hw_cursor_y;
264 int cirrus_blt_pixelwidth;
265 int cirrus_blt_width;
266 int cirrus_blt_height;
267 int cirrus_blt_dstpitch;
268 int cirrus_blt_srcpitch;
269 uint32_t cirrus_blt_fgcol;
270 uint32_t cirrus_blt_bgcol;
271 uint32_t cirrus_blt_dstaddr;
272 uint32_t cirrus_blt_srcaddr;
273 uint8_t cirrus_blt_mode;
274 uint8_t cirrus_blt_modeext;
275 cirrus_bitblt_rop_t cirrus_rop;
276 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
277 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
278 uint8_t *cirrus_srcptr;
279 uint8_t *cirrus_srcptr_end;
280 uint32_t cirrus_srccounter;
281 /* hwcursor display state */
282 int last_hw_cursor_size;
283 int last_hw_cursor_x;
284 int last_hw_cursor_y;
285 int last_hw_cursor_y_start;
286 int last_hw_cursor_y_end;
287 int real_vram_size; /* XXX: suppress that */
288 CPUWriteMemoryFunc **cirrus_linear_write;
289 int device_id;
290 int bustype;
291 } CirrusVGAState;
292
293 typedef struct PCICirrusVGAState {
294 PCIDevice dev;
295 CirrusVGAState cirrus_vga;
296 } PCICirrusVGAState;
297
298 static uint8_t rop_to_index[256];
299
300 /***************************************
301 *
302 * prototypes.
303 *
304 ***************************************/
305
306
307 static void cirrus_bitblt_reset(CirrusVGAState *s);
308 static void cirrus_update_memory_access(CirrusVGAState *s);
309
310 /***************************************
311 *
312 * raster operations
313 *
314 ***************************************/
315
316 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
317 uint8_t *dst,const uint8_t *src,
318 int dstpitch,int srcpitch,
319 int bltwidth,int bltheight)
320 {
321 }
322
323 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
324 uint8_t *dst,
325 int dstpitch, int bltwidth,int bltheight)
326 {
327 }
328
329 #define ROP_NAME 0
330 #define ROP_OP(d, s) d = 0
331 #include "cirrus_vga_rop.h"
332
333 #define ROP_NAME src_and_dst
334 #define ROP_OP(d, s) d = (s) & (d)
335 #include "cirrus_vga_rop.h"
336
337 #define ROP_NAME src_and_notdst
338 #define ROP_OP(d, s) d = (s) & (~(d))
339 #include "cirrus_vga_rop.h"
340
341 #define ROP_NAME notdst
342 #define ROP_OP(d, s) d = ~(d)
343 #include "cirrus_vga_rop.h"
344
345 #define ROP_NAME src
346 #define ROP_OP(d, s) d = s
347 #include "cirrus_vga_rop.h"
348
349 #define ROP_NAME 1
350 #define ROP_OP(d, s) d = ~0
351 #include "cirrus_vga_rop.h"
352
353 #define ROP_NAME notsrc_and_dst
354 #define ROP_OP(d, s) d = (~(s)) & (d)
355 #include "cirrus_vga_rop.h"
356
357 #define ROP_NAME src_xor_dst
358 #define ROP_OP(d, s) d = (s) ^ (d)
359 #include "cirrus_vga_rop.h"
360
361 #define ROP_NAME src_or_dst
362 #define ROP_OP(d, s) d = (s) | (d)
363 #include "cirrus_vga_rop.h"
364
365 #define ROP_NAME notsrc_or_notdst
366 #define ROP_OP(d, s) d = (~(s)) | (~(d))
367 #include "cirrus_vga_rop.h"
368
369 #define ROP_NAME src_notxor_dst
370 #define ROP_OP(d, s) d = ~((s) ^ (d))
371 #include "cirrus_vga_rop.h"
372
373 #define ROP_NAME src_or_notdst
374 #define ROP_OP(d, s) d = (s) | (~(d))
375 #include "cirrus_vga_rop.h"
376
377 #define ROP_NAME notsrc
378 #define ROP_OP(d, s) d = (~(s))
379 #include "cirrus_vga_rop.h"
380
381 #define ROP_NAME notsrc_or_dst
382 #define ROP_OP(d, s) d = (~(s)) | (d)
383 #include "cirrus_vga_rop.h"
384
385 #define ROP_NAME notsrc_and_notdst
386 #define ROP_OP(d, s) d = (~(s)) & (~(d))
387 #include "cirrus_vga_rop.h"
388
389 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
390 cirrus_bitblt_rop_fwd_0,
391 cirrus_bitblt_rop_fwd_src_and_dst,
392 cirrus_bitblt_rop_nop,
393 cirrus_bitblt_rop_fwd_src_and_notdst,
394 cirrus_bitblt_rop_fwd_notdst,
395 cirrus_bitblt_rop_fwd_src,
396 cirrus_bitblt_rop_fwd_1,
397 cirrus_bitblt_rop_fwd_notsrc_and_dst,
398 cirrus_bitblt_rop_fwd_src_xor_dst,
399 cirrus_bitblt_rop_fwd_src_or_dst,
400 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
401 cirrus_bitblt_rop_fwd_src_notxor_dst,
402 cirrus_bitblt_rop_fwd_src_or_notdst,
403 cirrus_bitblt_rop_fwd_notsrc,
404 cirrus_bitblt_rop_fwd_notsrc_or_dst,
405 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
406 };
407
408 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
409 cirrus_bitblt_rop_bkwd_0,
410 cirrus_bitblt_rop_bkwd_src_and_dst,
411 cirrus_bitblt_rop_nop,
412 cirrus_bitblt_rop_bkwd_src_and_notdst,
413 cirrus_bitblt_rop_bkwd_notdst,
414 cirrus_bitblt_rop_bkwd_src,
415 cirrus_bitblt_rop_bkwd_1,
416 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
417 cirrus_bitblt_rop_bkwd_src_xor_dst,
418 cirrus_bitblt_rop_bkwd_src_or_dst,
419 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
420 cirrus_bitblt_rop_bkwd_src_notxor_dst,
421 cirrus_bitblt_rop_bkwd_src_or_notdst,
422 cirrus_bitblt_rop_bkwd_notsrc,
423 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
424 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
425 };
426
427 #define TRANSP_ROP(name) {\
428 name ## _8,\
429 name ## _16,\
430 }
431 #define TRANSP_NOP(func) {\
432 func,\
433 func,\
434 }
435
436 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
437 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
439 TRANSP_NOP(cirrus_bitblt_rop_nop),
440 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
447 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
448 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
449 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
450 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
451 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
452 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
453 };
454
455 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
456 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
458 TRANSP_NOP(cirrus_bitblt_rop_nop),
459 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
465 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
466 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
467 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
468 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
469 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
470 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
471 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
472 };
473
474 #define ROP2(name) {\
475 name ## _8,\
476 name ## _16,\
477 name ## _24,\
478 name ## _32,\
479 }
480
481 #define ROP_NOP2(func) {\
482 func,\
483 func,\
484 func,\
485 func,\
486 }
487
488 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
489 ROP2(cirrus_patternfill_0),
490 ROP2(cirrus_patternfill_src_and_dst),
491 ROP_NOP2(cirrus_bitblt_rop_nop),
492 ROP2(cirrus_patternfill_src_and_notdst),
493 ROP2(cirrus_patternfill_notdst),
494 ROP2(cirrus_patternfill_src),
495 ROP2(cirrus_patternfill_1),
496 ROP2(cirrus_patternfill_notsrc_and_dst),
497 ROP2(cirrus_patternfill_src_xor_dst),
498 ROP2(cirrus_patternfill_src_or_dst),
499 ROP2(cirrus_patternfill_notsrc_or_notdst),
500 ROP2(cirrus_patternfill_src_notxor_dst),
501 ROP2(cirrus_patternfill_src_or_notdst),
502 ROP2(cirrus_patternfill_notsrc),
503 ROP2(cirrus_patternfill_notsrc_or_dst),
504 ROP2(cirrus_patternfill_notsrc_and_notdst),
505 };
506
507 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
508 ROP2(cirrus_colorexpand_transp_0),
509 ROP2(cirrus_colorexpand_transp_src_and_dst),
510 ROP_NOP2(cirrus_bitblt_rop_nop),
511 ROP2(cirrus_colorexpand_transp_src_and_notdst),
512 ROP2(cirrus_colorexpand_transp_notdst),
513 ROP2(cirrus_colorexpand_transp_src),
514 ROP2(cirrus_colorexpand_transp_1),
515 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
516 ROP2(cirrus_colorexpand_transp_src_xor_dst),
517 ROP2(cirrus_colorexpand_transp_src_or_dst),
518 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
519 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
520 ROP2(cirrus_colorexpand_transp_src_or_notdst),
521 ROP2(cirrus_colorexpand_transp_notsrc),
522 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
523 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
524 };
525
526 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
527 ROP2(cirrus_colorexpand_0),
528 ROP2(cirrus_colorexpand_src_and_dst),
529 ROP_NOP2(cirrus_bitblt_rop_nop),
530 ROP2(cirrus_colorexpand_src_and_notdst),
531 ROP2(cirrus_colorexpand_notdst),
532 ROP2(cirrus_colorexpand_src),
533 ROP2(cirrus_colorexpand_1),
534 ROP2(cirrus_colorexpand_notsrc_and_dst),
535 ROP2(cirrus_colorexpand_src_xor_dst),
536 ROP2(cirrus_colorexpand_src_or_dst),
537 ROP2(cirrus_colorexpand_notsrc_or_notdst),
538 ROP2(cirrus_colorexpand_src_notxor_dst),
539 ROP2(cirrus_colorexpand_src_or_notdst),
540 ROP2(cirrus_colorexpand_notsrc),
541 ROP2(cirrus_colorexpand_notsrc_or_dst),
542 ROP2(cirrus_colorexpand_notsrc_and_notdst),
543 };
544
545 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
546 ROP2(cirrus_colorexpand_pattern_transp_0),
547 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
548 ROP_NOP2(cirrus_bitblt_rop_nop),
549 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
550 ROP2(cirrus_colorexpand_pattern_transp_notdst),
551 ROP2(cirrus_colorexpand_pattern_transp_src),
552 ROP2(cirrus_colorexpand_pattern_transp_1),
553 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
554 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
555 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
556 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
557 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
558 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
559 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
560 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
561 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
562 };
563
564 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
565 ROP2(cirrus_colorexpand_pattern_0),
566 ROP2(cirrus_colorexpand_pattern_src_and_dst),
567 ROP_NOP2(cirrus_bitblt_rop_nop),
568 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
569 ROP2(cirrus_colorexpand_pattern_notdst),
570 ROP2(cirrus_colorexpand_pattern_src),
571 ROP2(cirrus_colorexpand_pattern_1),
572 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
573 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
574 ROP2(cirrus_colorexpand_pattern_src_or_dst),
575 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
576 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
577 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
578 ROP2(cirrus_colorexpand_pattern_notsrc),
579 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
580 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
581 };
582
583 static const cirrus_fill_t cirrus_fill[16][4] = {
584 ROP2(cirrus_fill_0),
585 ROP2(cirrus_fill_src_and_dst),
586 ROP_NOP2(cirrus_bitblt_fill_nop),
587 ROP2(cirrus_fill_src_and_notdst),
588 ROP2(cirrus_fill_notdst),
589 ROP2(cirrus_fill_src),
590 ROP2(cirrus_fill_1),
591 ROP2(cirrus_fill_notsrc_and_dst),
592 ROP2(cirrus_fill_src_xor_dst),
593 ROP2(cirrus_fill_src_or_dst),
594 ROP2(cirrus_fill_notsrc_or_notdst),
595 ROP2(cirrus_fill_src_notxor_dst),
596 ROP2(cirrus_fill_src_or_notdst),
597 ROP2(cirrus_fill_notsrc),
598 ROP2(cirrus_fill_notsrc_or_dst),
599 ROP2(cirrus_fill_notsrc_and_notdst),
600 };
601
602 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
603 {
604 unsigned int color;
605 switch (s->cirrus_blt_pixelwidth) {
606 case 1:
607 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
608 break;
609 case 2:
610 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8);
611 s->cirrus_blt_fgcol = le16_to_cpu(color);
612 break;
613 case 3:
614 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
615 (s->gr[0x11] << 8) | (s->gr[0x13] << 16);
616 break;
617 default:
618 case 4:
619 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8) |
620 (s->gr[0x13] << 16) | (s->gr[0x15] << 24);
621 s->cirrus_blt_fgcol = le32_to_cpu(color);
622 break;
623 }
624 }
625
626 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
627 {
628 unsigned int color;
629 switch (s->cirrus_blt_pixelwidth) {
630 case 1:
631 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
632 break;
633 case 2:
634 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8);
635 s->cirrus_blt_bgcol = le16_to_cpu(color);
636 break;
637 case 3:
638 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
639 (s->gr[0x10] << 8) | (s->gr[0x12] << 16);
640 break;
641 default:
642 case 4:
643 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8) |
644 (s->gr[0x12] << 16) | (s->gr[0x14] << 24);
645 s->cirrus_blt_bgcol = le32_to_cpu(color);
646 break;
647 }
648 }
649
650 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
651 int off_pitch, int bytesperline,
652 int lines)
653 {
654 int y;
655 int off_cur;
656 int off_cur_end;
657
658 for (y = 0; y < lines; y++) {
659 off_cur = off_begin;
660 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
661 off_cur &= TARGET_PAGE_MASK;
662 while (off_cur < off_cur_end) {
663 cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
664 off_cur += TARGET_PAGE_SIZE;
665 }
666 off_begin += off_pitch;
667 }
668 }
669
670 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
671 const uint8_t * src)
672 {
673 uint8_t *dst;
674
675 dst = s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
676
677 if (BLTUNSAFE(s))
678 return 0;
679
680 (*s->cirrus_rop) (s, dst, src,
681 s->cirrus_blt_dstpitch, 0,
682 s->cirrus_blt_width, s->cirrus_blt_height);
683 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
684 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
685 s->cirrus_blt_height);
686 return 1;
687 }
688
689 /* fill */
690
691 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
692 {
693 cirrus_fill_t rop_func;
694
695 if (BLTUNSAFE(s))
696 return 0;
697 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
698 rop_func(s, s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
699 s->cirrus_blt_dstpitch,
700 s->cirrus_blt_width, s->cirrus_blt_height);
701 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
702 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
703 s->cirrus_blt_height);
704 cirrus_bitblt_reset(s);
705 return 1;
706 }
707
708 /***************************************
709 *
710 * bitblt (video-to-video)
711 *
712 ***************************************/
713
714 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
715 {
716 return cirrus_bitblt_common_patterncopy(s,
717 s->vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
718 s->cirrus_addr_mask));
719 }
720
721 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
722 {
723 int sx, sy;
724 int dx, dy;
725 int width, height;
726 int depth;
727 int notify = 0;
728
729 depth = s->get_bpp((VGAState *)s) / 8;
730 s->get_resolution((VGAState *)s, &width, &height);
731
732 /* extra x, y */
733 sx = (src % (width * depth)) / depth;
734 sy = (src / (width * depth));
735 dx = (dst % (width *depth)) / depth;
736 dy = (dst / (width * depth));
737
738 /* normalize width */
739 w /= depth;
740
741 /* if we're doing a backward copy, we have to adjust
742 our x/y to be the upper left corner (instead of the lower
743 right corner) */
744 if (s->cirrus_blt_dstpitch < 0) {
745 sx -= (s->cirrus_blt_width / depth) - 1;
746 dx -= (s->cirrus_blt_width / depth) - 1;
747 sy -= s->cirrus_blt_height - 1;
748 dy -= s->cirrus_blt_height - 1;
749 }
750
751 /* are we in the visible portion of memory? */
752 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
753 (sx + w) <= width && (sy + h) <= height &&
754 (dx + w) <= width && (dy + h) <= height) {
755 notify = 1;
756 }
757
758 /* make to sure only copy if it's a plain copy ROP */
759 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
760 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
761 notify = 0;
762
763 /* we have to flush all pending changes so that the copy
764 is generated at the appropriate moment in time */
765 if (notify)
766 vga_hw_update();
767
768 (*s->cirrus_rop) (s, s->vram_ptr +
769 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
770 s->vram_ptr +
771 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
772 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
773 s->cirrus_blt_width, s->cirrus_blt_height);
774
775 if (notify)
776 qemu_console_copy(s->ds,
777 sx, sy, dx, dy,
778 s->cirrus_blt_width / depth,
779 s->cirrus_blt_height);
780
781 /* we don't have to notify the display that this portion has
782 changed since qemu_console_copy implies this */
783
784 if (!notify)
785 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
786 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
787 s->cirrus_blt_height);
788 }
789
790 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
791 {
792 if (BLTUNSAFE(s))
793 return 0;
794
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
799 return 1;
800 }
801
802 /***************************************
803 *
804 * bitblt (cpu-to-video)
805 *
806 ***************************************/
807
808 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
809 {
810 int copy_count;
811 uint8_t *end_ptr;
812
813 if (s->cirrus_srccounter > 0) {
814 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
815 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
816 the_end:
817 s->cirrus_srccounter = 0;
818 cirrus_bitblt_reset(s);
819 } else {
820 /* at least one scan line */
821 do {
822 (*s->cirrus_rop)(s, s->vram_ptr +
823 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
824 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
825 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
826 s->cirrus_blt_width, 1);
827 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
828 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
829 if (s->cirrus_srccounter <= 0)
830 goto the_end;
831 /* more bytes than needed can be transfered because of
832 word alignment, so we keep them for the next line */
833 /* XXX: keep alignment to speed up transfer */
834 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
835 copy_count = s->cirrus_srcptr_end - end_ptr;
836 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
837 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
838 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
839 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
840 }
841 }
842 }
843
844 /***************************************
845 *
846 * bitblt wrapper
847 *
848 ***************************************/
849
850 static void cirrus_bitblt_reset(CirrusVGAState * s)
851 {
852 int need_update;
853
854 s->gr[0x31] &=
855 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
856 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
857 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
858 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
859 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
860 s->cirrus_srccounter = 0;
861 if (!need_update)
862 return;
863 cirrus_update_memory_access(s);
864 }
865
866 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
867 {
868 int w;
869
870 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
871 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
872 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
873
874 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
875 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
876 s->cirrus_blt_srcpitch = 8;
877 } else {
878 /* XXX: check for 24 bpp */
879 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
880 }
881 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
882 } else {
883 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
884 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
885 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
886 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
887 else
888 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
889 } else {
890 /* always align input size to 32 bits */
891 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
892 }
893 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
894 }
895 s->cirrus_srcptr = s->cirrus_bltbuf;
896 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
897 cirrus_update_memory_access(s);
898 return 1;
899 }
900
901 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
902 {
903 /* XXX */
904 #ifdef DEBUG_BITBLT
905 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
906 #endif
907 return 0;
908 }
909
910 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
911 {
912 int ret;
913
914 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
915 ret = cirrus_bitblt_videotovideo_patterncopy(s);
916 } else {
917 ret = cirrus_bitblt_videotovideo_copy(s);
918 }
919 if (ret)
920 cirrus_bitblt_reset(s);
921 return ret;
922 }
923
924 static void cirrus_bitblt_start(CirrusVGAState * s)
925 {
926 uint8_t blt_rop;
927
928 s->gr[0x31] |= CIRRUS_BLT_BUSY;
929
930 s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
931 s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
932 s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
933 s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
934 s->cirrus_blt_dstaddr =
935 (s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
936 s->cirrus_blt_srcaddr =
937 (s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
938 s->cirrus_blt_mode = s->gr[0x30];
939 s->cirrus_blt_modeext = s->gr[0x33];
940 blt_rop = s->gr[0x32];
941
942 #ifdef DEBUG_BITBLT
943 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",
944 blt_rop,
945 s->cirrus_blt_mode,
946 s->cirrus_blt_modeext,
947 s->cirrus_blt_width,
948 s->cirrus_blt_height,
949 s->cirrus_blt_dstpitch,
950 s->cirrus_blt_srcpitch,
951 s->cirrus_blt_dstaddr,
952 s->cirrus_blt_srcaddr,
953 s->gr[0x2f]);
954 #endif
955
956 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
957 case CIRRUS_BLTMODE_PIXELWIDTH8:
958 s->cirrus_blt_pixelwidth = 1;
959 break;
960 case CIRRUS_BLTMODE_PIXELWIDTH16:
961 s->cirrus_blt_pixelwidth = 2;
962 break;
963 case CIRRUS_BLTMODE_PIXELWIDTH24:
964 s->cirrus_blt_pixelwidth = 3;
965 break;
966 case CIRRUS_BLTMODE_PIXELWIDTH32:
967 s->cirrus_blt_pixelwidth = 4;
968 break;
969 default:
970 #ifdef DEBUG_BITBLT
971 printf("cirrus: bitblt - pixel width is unknown\n");
972 #endif
973 goto bitblt_ignore;
974 }
975 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
976
977 if ((s->
978 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
979 CIRRUS_BLTMODE_MEMSYSDEST))
980 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
981 #ifdef DEBUG_BITBLT
982 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
983 #endif
984 goto bitblt_ignore;
985 }
986
987 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
988 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
989 CIRRUS_BLTMODE_TRANSPARENTCOMP |
990 CIRRUS_BLTMODE_PATTERNCOPY |
991 CIRRUS_BLTMODE_COLOREXPAND)) ==
992 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
993 cirrus_bitblt_fgcol(s);
994 cirrus_bitblt_solidfill(s, blt_rop);
995 } else {
996 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
997 CIRRUS_BLTMODE_PATTERNCOPY)) ==
998 CIRRUS_BLTMODE_COLOREXPAND) {
999
1000 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1001 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1002 cirrus_bitblt_bgcol(s);
1003 else
1004 cirrus_bitblt_fgcol(s);
1005 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1006 } else {
1007 cirrus_bitblt_fgcol(s);
1008 cirrus_bitblt_bgcol(s);
1009 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1010 }
1011 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1012 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1013 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1014 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1015 cirrus_bitblt_bgcol(s);
1016 else
1017 cirrus_bitblt_fgcol(s);
1018 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1019 } else {
1020 cirrus_bitblt_fgcol(s);
1021 cirrus_bitblt_bgcol(s);
1022 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1023 }
1024 } else {
1025 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1026 }
1027 } else {
1028 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1029 if (s->cirrus_blt_pixelwidth > 2) {
1030 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1031 goto bitblt_ignore;
1032 }
1033 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1034 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1035 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1036 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1037 } else {
1038 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1039 }
1040 } else {
1041 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1042 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1043 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1044 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1045 } else {
1046 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1047 }
1048 }
1049 }
1050 // setup bitblt engine.
1051 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1052 if (!cirrus_bitblt_cputovideo(s))
1053 goto bitblt_ignore;
1054 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1055 if (!cirrus_bitblt_videotocpu(s))
1056 goto bitblt_ignore;
1057 } else {
1058 if (!cirrus_bitblt_videotovideo(s))
1059 goto bitblt_ignore;
1060 }
1061 }
1062 return;
1063 bitblt_ignore:;
1064 cirrus_bitblt_reset(s);
1065 }
1066
1067 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1068 {
1069 unsigned old_value;
1070
1071 old_value = s->gr[0x31];
1072 s->gr[0x31] = reg_value;
1073
1074 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1075 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1076 cirrus_bitblt_reset(s);
1077 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1078 ((reg_value & CIRRUS_BLT_START) != 0)) {
1079 cirrus_bitblt_start(s);
1080 }
1081 }
1082
1083
1084 /***************************************
1085 *
1086 * basic parameters
1087 *
1088 ***************************************/
1089
1090 static void cirrus_get_offsets(VGAState *s1,
1091 uint32_t *pline_offset,
1092 uint32_t *pstart_addr,
1093 uint32_t *pline_compare)
1094 {
1095 CirrusVGAState * s = (CirrusVGAState *)s1;
1096 uint32_t start_addr, line_offset, line_compare;
1097
1098 line_offset = s->cr[0x13]
1099 | ((s->cr[0x1b] & 0x10) << 4);
1100 line_offset <<= 3;
1101 *pline_offset = line_offset;
1102
1103 start_addr = (s->cr[0x0c] << 8)
1104 | s->cr[0x0d]
1105 | ((s->cr[0x1b] & 0x01) << 16)
1106 | ((s->cr[0x1b] & 0x0c) << 15)
1107 | ((s->cr[0x1d] & 0x80) << 12);
1108 *pstart_addr = start_addr;
1109
1110 line_compare = s->cr[0x18] |
1111 ((s->cr[0x07] & 0x10) << 4) |
1112 ((s->cr[0x09] & 0x40) << 3);
1113 *pline_compare = line_compare;
1114 }
1115
1116 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1117 {
1118 uint32_t ret = 16;
1119
1120 switch (s->cirrus_hidden_dac_data & 0xf) {
1121 case 0:
1122 ret = 15;
1123 break; /* Sierra HiColor */
1124 case 1:
1125 ret = 16;
1126 break; /* XGA HiColor */
1127 default:
1128 #ifdef DEBUG_CIRRUS
1129 printf("cirrus: invalid DAC value %x in 16bpp\n",
1130 (s->cirrus_hidden_dac_data & 0xf));
1131 #endif
1132 ret = 15; /* XXX */
1133 break;
1134 }
1135 return ret;
1136 }
1137
1138 static int cirrus_get_bpp(VGAState *s1)
1139 {
1140 CirrusVGAState * s = (CirrusVGAState *)s1;
1141 uint32_t ret = 8;
1142
1143 if ((s->sr[0x07] & 0x01) != 0) {
1144 /* Cirrus SVGA */
1145 switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1146 case CIRRUS_SR7_BPP_8:
1147 ret = 8;
1148 break;
1149 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1150 ret = cirrus_get_bpp16_depth(s);
1151 break;
1152 case CIRRUS_SR7_BPP_24:
1153 ret = 24;
1154 break;
1155 case CIRRUS_SR7_BPP_16:
1156 ret = cirrus_get_bpp16_depth(s);
1157 break;
1158 case CIRRUS_SR7_BPP_32:
1159 ret = 32;
1160 break;
1161 default:
1162 #ifdef DEBUG_CIRRUS
1163 printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
1164 #endif
1165 ret = 8;
1166 break;
1167 }
1168 } else {
1169 /* VGA */
1170 ret = 0;
1171 }
1172
1173 return ret;
1174 }
1175
1176 static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1177 {
1178 int width, height;
1179
1180 width = (s->cr[0x01] + 1) * 8;
1181 height = s->cr[0x12] |
1182 ((s->cr[0x07] & 0x02) << 7) |
1183 ((s->cr[0x07] & 0x40) << 3);
1184 height = (height + 1);
1185 /* interlace support */
1186 if (s->cr[0x1a] & 0x01)
1187 height = height * 2;
1188 *pwidth = width;
1189 *pheight = height;
1190 }
1191
1192 /***************************************
1193 *
1194 * bank memory
1195 *
1196 ***************************************/
1197
1198 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1199 {
1200 unsigned offset;
1201 unsigned limit;
1202
1203 if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
1204 offset = s->gr[0x09 + bank_index];
1205 else /* single bank */
1206 offset = s->gr[0x09];
1207
1208 if ((s->gr[0x0b] & 0x20) != 0)
1209 offset <<= 14;
1210 else
1211 offset <<= 12;
1212
1213 if (s->real_vram_size <= offset)
1214 limit = 0;
1215 else
1216 limit = s->real_vram_size - offset;
1217
1218 if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1219 if (limit > 0x8000) {
1220 offset += 0x8000;
1221 limit -= 0x8000;
1222 } else {
1223 limit = 0;
1224 }
1225 }
1226
1227 if (limit > 0) {
1228 /* Thinking about changing bank base? First, drop the dirty bitmap information
1229 * on the current location, otherwise we lose this pointer forever */
1230 if (s->lfb_vram_mapped) {
1231 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1232 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1233 }
1234 s->cirrus_bank_base[bank_index] = offset;
1235 s->cirrus_bank_limit[bank_index] = limit;
1236 } else {
1237 s->cirrus_bank_base[bank_index] = 0;
1238 s->cirrus_bank_limit[bank_index] = 0;
1239 }
1240 }
1241
1242 /***************************************
1243 *
1244 * I/O access between 0x3c4-0x3c5
1245 *
1246 ***************************************/
1247
1248 static int
1249 cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1250 {
1251 switch (reg_index) {
1252 case 0x00: // Standard VGA
1253 case 0x01: // Standard VGA
1254 case 0x02: // Standard VGA
1255 case 0x03: // Standard VGA
1256 case 0x04: // Standard VGA
1257 return CIRRUS_HOOK_NOT_HANDLED;
1258 case 0x06: // Unlock Cirrus extensions
1259 *reg_value = s->sr[reg_index];
1260 break;
1261 case 0x10:
1262 case 0x30:
1263 case 0x50:
1264 case 0x70: // Graphics Cursor X
1265 case 0x90:
1266 case 0xb0:
1267 case 0xd0:
1268 case 0xf0: // Graphics Cursor X
1269 *reg_value = s->sr[0x10];
1270 break;
1271 case 0x11:
1272 case 0x31:
1273 case 0x51:
1274 case 0x71: // Graphics Cursor Y
1275 case 0x91:
1276 case 0xb1:
1277 case 0xd1:
1278 case 0xf1: // Graphics Cursor Y
1279 *reg_value = s->sr[0x11];
1280 break;
1281 case 0x05: // ???
1282 case 0x07: // Extended Sequencer Mode
1283 case 0x08: // EEPROM Control
1284 case 0x09: // Scratch Register 0
1285 case 0x0a: // Scratch Register 1
1286 case 0x0b: // VCLK 0
1287 case 0x0c: // VCLK 1
1288 case 0x0d: // VCLK 2
1289 case 0x0e: // VCLK 3
1290 case 0x0f: // DRAM Control
1291 case 0x12: // Graphics Cursor Attribute
1292 case 0x13: // Graphics Cursor Pattern Address
1293 case 0x14: // Scratch Register 2
1294 case 0x15: // Scratch Register 3
1295 case 0x16: // Performance Tuning Register
1296 case 0x17: // Configuration Readback and Extended Control
1297 case 0x18: // Signature Generator Control
1298 case 0x19: // Signal Generator Result
1299 case 0x1a: // Signal Generator Result
1300 case 0x1b: // VCLK 0 Denominator & Post
1301 case 0x1c: // VCLK 1 Denominator & Post
1302 case 0x1d: // VCLK 2 Denominator & Post
1303 case 0x1e: // VCLK 3 Denominator & Post
1304 case 0x1f: // BIOS Write Enable and MCLK select
1305 #ifdef DEBUG_CIRRUS
1306 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1307 #endif
1308 *reg_value = s->sr[reg_index];
1309 break;
1310 default:
1311 #ifdef DEBUG_CIRRUS
1312 printf("cirrus: inport sr_index %02x\n", reg_index);
1313 #endif
1314 *reg_value = 0xff;
1315 break;
1316 }
1317
1318 return CIRRUS_HOOK_HANDLED;
1319 }
1320
1321 static int
1322 cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1323 {
1324 switch (reg_index) {
1325 case 0x00: // Standard VGA
1326 case 0x01: // Standard VGA
1327 case 0x02: // Standard VGA
1328 case 0x03: // Standard VGA
1329 case 0x04: // Standard VGA
1330 return CIRRUS_HOOK_NOT_HANDLED;
1331 case 0x06: // Unlock Cirrus extensions
1332 reg_value &= 0x17;
1333 if (reg_value == 0x12) {
1334 s->sr[reg_index] = 0x12;
1335 } else {
1336 s->sr[reg_index] = 0x0f;
1337 }
1338 break;
1339 case 0x10:
1340 case 0x30:
1341 case 0x50:
1342 case 0x70: // Graphics Cursor X
1343 case 0x90:
1344 case 0xb0:
1345 case 0xd0:
1346 case 0xf0: // Graphics Cursor X
1347 s->sr[0x10] = reg_value;
1348 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
1349 break;
1350 case 0x11:
1351 case 0x31:
1352 case 0x51:
1353 case 0x71: // Graphics Cursor Y
1354 case 0x91:
1355 case 0xb1:
1356 case 0xd1:
1357 case 0xf1: // Graphics Cursor Y
1358 s->sr[0x11] = reg_value;
1359 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
1360 break;
1361 case 0x07: // Extended Sequencer Mode
1362 cirrus_update_memory_access(s);
1363 case 0x08: // EEPROM Control
1364 case 0x09: // Scratch Register 0
1365 case 0x0a: // Scratch Register 1
1366 case 0x0b: // VCLK 0
1367 case 0x0c: // VCLK 1
1368 case 0x0d: // VCLK 2
1369 case 0x0e: // VCLK 3
1370 case 0x0f: // DRAM Control
1371 case 0x12: // Graphics Cursor Attribute
1372 case 0x13: // Graphics Cursor Pattern Address
1373 case 0x14: // Scratch Register 2
1374 case 0x15: // Scratch Register 3
1375 case 0x16: // Performance Tuning Register
1376 case 0x18: // Signature Generator Control
1377 case 0x19: // Signature Generator Result
1378 case 0x1a: // Signature Generator Result
1379 case 0x1b: // VCLK 0 Denominator & Post
1380 case 0x1c: // VCLK 1 Denominator & Post
1381 case 0x1d: // VCLK 2 Denominator & Post
1382 case 0x1e: // VCLK 3 Denominator & Post
1383 case 0x1f: // BIOS Write Enable and MCLK select
1384 s->sr[reg_index] = reg_value;
1385 #ifdef DEBUG_CIRRUS
1386 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1387 reg_index, reg_value);
1388 #endif
1389 break;
1390 case 0x17: // Configuration Readback and Extended Control
1391 s->sr[reg_index] = (s->sr[reg_index] & 0x38) | (reg_value & 0xc7);
1392 cirrus_update_memory_access(s);
1393 break;
1394 default:
1395 #ifdef DEBUG_CIRRUS
1396 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1397 reg_value);
1398 #endif
1399 break;
1400 }
1401
1402 return CIRRUS_HOOK_HANDLED;
1403 }
1404
1405 /***************************************
1406 *
1407 * I/O access at 0x3c6
1408 *
1409 ***************************************/
1410
1411 static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1412 {
1413 *reg_value = 0xff;
1414 if (++s->cirrus_hidden_dac_lockindex == 5) {
1415 *reg_value = s->cirrus_hidden_dac_data;
1416 s->cirrus_hidden_dac_lockindex = 0;
1417 }
1418 }
1419
1420 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1421 {
1422 if (s->cirrus_hidden_dac_lockindex == 4) {
1423 s->cirrus_hidden_dac_data = reg_value;
1424 #if defined(DEBUG_CIRRUS)
1425 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1426 #endif
1427 }
1428 s->cirrus_hidden_dac_lockindex = 0;
1429 }
1430
1431 /***************************************
1432 *
1433 * I/O access at 0x3c9
1434 *
1435 ***************************************/
1436
1437 static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1438 {
1439 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1440 return CIRRUS_HOOK_NOT_HANDLED;
1441 *reg_value =
1442 s->cirrus_hidden_palette[(s->dac_read_index & 0x0f) * 3 +
1443 s->dac_sub_index];
1444 if (++s->dac_sub_index == 3) {
1445 s->dac_sub_index = 0;
1446 s->dac_read_index++;
1447 }
1448 return CIRRUS_HOOK_HANDLED;
1449 }
1450
1451 static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1452 {
1453 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1454 return CIRRUS_HOOK_NOT_HANDLED;
1455 s->dac_cache[s->dac_sub_index] = reg_value;
1456 if (++s->dac_sub_index == 3) {
1457 memcpy(&s->cirrus_hidden_palette[(s->dac_write_index & 0x0f) * 3],
1458 s->dac_cache, 3);
1459 /* XXX update cursor */
1460 s->dac_sub_index = 0;
1461 s->dac_write_index++;
1462 }
1463 return CIRRUS_HOOK_HANDLED;
1464 }
1465
1466 /***************************************
1467 *
1468 * I/O access between 0x3ce-0x3cf
1469 *
1470 ***************************************/
1471
1472 static int
1473 cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1474 {
1475 switch (reg_index) {
1476 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1477 *reg_value = s->cirrus_shadow_gr0;
1478 return CIRRUS_HOOK_HANDLED;
1479 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1480 *reg_value = s->cirrus_shadow_gr1;
1481 return CIRRUS_HOOK_HANDLED;
1482 case 0x02: // Standard VGA
1483 case 0x03: // Standard VGA
1484 case 0x04: // Standard VGA
1485 case 0x06: // Standard VGA
1486 case 0x07: // Standard VGA
1487 case 0x08: // Standard VGA
1488 return CIRRUS_HOOK_NOT_HANDLED;
1489 case 0x05: // Standard VGA, Cirrus extended mode
1490 default:
1491 break;
1492 }
1493
1494 if (reg_index < 0x3a) {
1495 *reg_value = s->gr[reg_index];
1496 } else {
1497 #ifdef DEBUG_CIRRUS
1498 printf("cirrus: inport gr_index %02x\n", reg_index);
1499 #endif
1500 *reg_value = 0xff;
1501 }
1502
1503 return CIRRUS_HOOK_HANDLED;
1504 }
1505
1506 static int
1507 cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1508 {
1509 #if defined(DEBUG_BITBLT) && 0
1510 printf("gr%02x: %02x\n", reg_index, reg_value);
1511 #endif
1512 switch (reg_index) {
1513 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1514 s->cirrus_shadow_gr0 = reg_value;
1515 return CIRRUS_HOOK_NOT_HANDLED;
1516 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1517 s->cirrus_shadow_gr1 = reg_value;
1518 return CIRRUS_HOOK_NOT_HANDLED;
1519 case 0x02: // Standard VGA
1520 case 0x03: // Standard VGA
1521 case 0x04: // Standard VGA
1522 case 0x06: // Standard VGA
1523 case 0x07: // Standard VGA
1524 case 0x08: // Standard VGA
1525 return CIRRUS_HOOK_NOT_HANDLED;
1526 case 0x05: // Standard VGA, Cirrus extended mode
1527 s->gr[reg_index] = reg_value & 0x7f;
1528 cirrus_update_memory_access(s);
1529 break;
1530 case 0x09: // bank offset #0
1531 case 0x0A: // bank offset #1
1532 s->gr[reg_index] = reg_value;
1533 cirrus_update_bank_ptr(s, 0);
1534 cirrus_update_bank_ptr(s, 1);
1535 cirrus_update_memory_access(s);
1536 break;
1537 case 0x0B:
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 0x10: // BGCOLOR 0x0000ff00
1544 case 0x11: // FGCOLOR 0x0000ff00
1545 case 0x12: // BGCOLOR 0x00ff0000
1546 case 0x13: // FGCOLOR 0x00ff0000
1547 case 0x14: // BGCOLOR 0xff000000
1548 case 0x15: // FGCOLOR 0xff000000
1549 case 0x20: // BLT WIDTH 0x0000ff
1550 case 0x22: // BLT HEIGHT 0x0000ff
1551 case 0x24: // BLT DEST PITCH 0x0000ff
1552 case 0x26: // BLT SRC PITCH 0x0000ff
1553 case 0x28: // BLT DEST ADDR 0x0000ff
1554 case 0x29: // BLT DEST ADDR 0x00ff00
1555 case 0x2c: // BLT SRC ADDR 0x0000ff
1556 case 0x2d: // BLT SRC ADDR 0x00ff00
1557 case 0x2f: // BLT WRITEMASK
1558 case 0x30: // BLT MODE
1559 case 0x32: // RASTER OP
1560 case 0x33: // BLT MODEEXT
1561 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1562 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1563 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1564 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1565 s->gr[reg_index] = reg_value;
1566 break;
1567 case 0x21: // BLT WIDTH 0x001f00
1568 case 0x23: // BLT HEIGHT 0x001f00
1569 case 0x25: // BLT DEST PITCH 0x001f00
1570 case 0x27: // BLT SRC PITCH 0x001f00
1571 s->gr[reg_index] = reg_value & 0x1f;
1572 break;
1573 case 0x2a: // BLT DEST ADDR 0x3f0000
1574 s->gr[reg_index] = reg_value & 0x3f;
1575 /* if auto start mode, starts bit blt now */
1576 if (s->gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1577 cirrus_bitblt_start(s);
1578 }
1579 break;
1580 case 0x2e: // BLT SRC ADDR 0x3f0000
1581 s->gr[reg_index] = reg_value & 0x3f;
1582 break;
1583 case 0x31: // BLT STATUS/START
1584 cirrus_write_bitblt(s, reg_value);
1585 break;
1586 default:
1587 #ifdef DEBUG_CIRRUS
1588 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1589 reg_value);
1590 #endif
1591 break;
1592 }
1593
1594 return CIRRUS_HOOK_HANDLED;
1595 }
1596
1597 /***************************************
1598 *
1599 * I/O access between 0x3d4-0x3d5
1600 *
1601 ***************************************/
1602
1603 static int
1604 cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1605 {
1606 switch (reg_index) {
1607 case 0x00: // Standard VGA
1608 case 0x01: // Standard VGA
1609 case 0x02: // Standard VGA
1610 case 0x03: // Standard VGA
1611 case 0x04: // Standard VGA
1612 case 0x05: // Standard VGA
1613 case 0x06: // Standard VGA
1614 case 0x07: // Standard VGA
1615 case 0x08: // Standard VGA
1616 case 0x09: // Standard VGA
1617 case 0x0a: // Standard VGA
1618 case 0x0b: // Standard VGA
1619 case 0x0c: // Standard VGA
1620 case 0x0d: // Standard VGA
1621 case 0x0e: // Standard VGA
1622 case 0x0f: // Standard VGA
1623 case 0x10: // Standard VGA
1624 case 0x11: // Standard VGA
1625 case 0x12: // Standard VGA
1626 case 0x13: // Standard VGA
1627 case 0x14: // Standard VGA
1628 case 0x15: // Standard VGA
1629 case 0x16: // Standard VGA
1630 case 0x17: // Standard VGA
1631 case 0x18: // Standard VGA
1632 return CIRRUS_HOOK_NOT_HANDLED;
1633 case 0x24: // Attribute Controller Toggle Readback (R)
1634 *reg_value = (s->ar_flip_flop << 7);
1635 break;
1636 case 0x19: // Interlace End
1637 case 0x1a: // Miscellaneous Control
1638 case 0x1b: // Extended Display Control
1639 case 0x1c: // Sync Adjust and Genlock
1640 case 0x1d: // Overlay Extended Control
1641 case 0x22: // Graphics Data Latches Readback (R)
1642 case 0x25: // Part Status
1643 case 0x27: // Part ID (R)
1644 *reg_value = s->cr[reg_index];
1645 break;
1646 case 0x26: // Attribute Controller Index Readback (R)
1647 *reg_value = s->ar_index & 0x3f;
1648 break;
1649 default:
1650 #ifdef DEBUG_CIRRUS
1651 printf("cirrus: inport cr_index %02x\n", reg_index);
1652 *reg_value = 0xff;
1653 #endif
1654 break;
1655 }
1656
1657 return CIRRUS_HOOK_HANDLED;
1658 }
1659
1660 static int
1661 cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1662 {
1663 switch (reg_index) {
1664 case 0x00: // Standard VGA
1665 case 0x01: // Standard VGA
1666 case 0x02: // Standard VGA
1667 case 0x03: // Standard VGA
1668 case 0x04: // Standard VGA
1669 case 0x05: // Standard VGA
1670 case 0x06: // Standard VGA
1671 case 0x07: // Standard VGA
1672 case 0x08: // Standard VGA
1673 case 0x09: // Standard VGA
1674 case 0x0a: // Standard VGA
1675 case 0x0b: // Standard VGA
1676 case 0x0c: // Standard VGA
1677 case 0x0d: // Standard VGA
1678 case 0x0e: // Standard VGA
1679 case 0x0f: // Standard VGA
1680 case 0x10: // Standard VGA
1681 case 0x11: // Standard VGA
1682 case 0x12: // Standard VGA
1683 case 0x13: // Standard VGA
1684 case 0x14: // Standard VGA
1685 case 0x15: // Standard VGA
1686 case 0x16: // Standard VGA
1687 case 0x17: // Standard VGA
1688 case 0x18: // Standard VGA
1689 return CIRRUS_HOOK_NOT_HANDLED;
1690 case 0x19: // Interlace End
1691 case 0x1a: // Miscellaneous Control
1692 case 0x1b: // Extended Display Control
1693 case 0x1c: // Sync Adjust and Genlock
1694 case 0x1d: // Overlay Extended Control
1695 s->cr[reg_index] = reg_value;
1696 #ifdef DEBUG_CIRRUS
1697 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1698 reg_index, reg_value);
1699 #endif
1700 break;
1701 case 0x22: // Graphics Data Latches Readback (R)
1702 case 0x24: // Attribute Controller Toggle Readback (R)
1703 case 0x26: // Attribute Controller Index Readback (R)
1704 case 0x27: // Part ID (R)
1705 break;
1706 case 0x25: // Part Status
1707 default:
1708 #ifdef DEBUG_CIRRUS
1709 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1710 reg_value);
1711 #endif
1712 break;
1713 }
1714
1715 return CIRRUS_HOOK_HANDLED;
1716 }
1717
1718 /***************************************
1719 *
1720 * memory-mapped I/O (bitblt)
1721 *
1722 ***************************************/
1723
1724 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1725 {
1726 int value = 0xff;
1727
1728 switch (address) {
1729 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1730 cirrus_hook_read_gr(s, 0x00, &value);
1731 break;
1732 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1733 cirrus_hook_read_gr(s, 0x10, &value);
1734 break;
1735 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1736 cirrus_hook_read_gr(s, 0x12, &value);
1737 break;
1738 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1739 cirrus_hook_read_gr(s, 0x14, &value);
1740 break;
1741 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1742 cirrus_hook_read_gr(s, 0x01, &value);
1743 break;
1744 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1745 cirrus_hook_read_gr(s, 0x11, &value);
1746 break;
1747 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1748 cirrus_hook_read_gr(s, 0x13, &value);
1749 break;
1750 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1751 cirrus_hook_read_gr(s, 0x15, &value);
1752 break;
1753 case (CIRRUS_MMIO_BLTWIDTH + 0):
1754 cirrus_hook_read_gr(s, 0x20, &value);
1755 break;
1756 case (CIRRUS_MMIO_BLTWIDTH + 1):
1757 cirrus_hook_read_gr(s, 0x21, &value);
1758 break;
1759 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1760 cirrus_hook_read_gr(s, 0x22, &value);
1761 break;
1762 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1763 cirrus_hook_read_gr(s, 0x23, &value);
1764 break;
1765 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1766 cirrus_hook_read_gr(s, 0x24, &value);
1767 break;
1768 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1769 cirrus_hook_read_gr(s, 0x25, &value);
1770 break;
1771 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1772 cirrus_hook_read_gr(s, 0x26, &value);
1773 break;
1774 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1775 cirrus_hook_read_gr(s, 0x27, &value);
1776 break;
1777 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1778 cirrus_hook_read_gr(s, 0x28, &value);
1779 break;
1780 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1781 cirrus_hook_read_gr(s, 0x29, &value);
1782 break;
1783 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1784 cirrus_hook_read_gr(s, 0x2a, &value);
1785 break;
1786 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1787 cirrus_hook_read_gr(s, 0x2c, &value);
1788 break;
1789 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1790 cirrus_hook_read_gr(s, 0x2d, &value);
1791 break;
1792 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1793 cirrus_hook_read_gr(s, 0x2e, &value);
1794 break;
1795 case CIRRUS_MMIO_BLTWRITEMASK:
1796 cirrus_hook_read_gr(s, 0x2f, &value);
1797 break;
1798 case CIRRUS_MMIO_BLTMODE:
1799 cirrus_hook_read_gr(s, 0x30, &value);
1800 break;
1801 case CIRRUS_MMIO_BLTROP:
1802 cirrus_hook_read_gr(s, 0x32, &value);
1803 break;
1804 case CIRRUS_MMIO_BLTMODEEXT:
1805 cirrus_hook_read_gr(s, 0x33, &value);
1806 break;
1807 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1808 cirrus_hook_read_gr(s, 0x34, &value);
1809 break;
1810 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1811 cirrus_hook_read_gr(s, 0x35, &value);
1812 break;
1813 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1814 cirrus_hook_read_gr(s, 0x38, &value);
1815 break;
1816 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1817 cirrus_hook_read_gr(s, 0x39, &value);
1818 break;
1819 case CIRRUS_MMIO_BLTSTATUS:
1820 cirrus_hook_read_gr(s, 0x31, &value);
1821 break;
1822 default:
1823 #ifdef DEBUG_CIRRUS
1824 printf("cirrus: mmio read - address 0x%04x\n", address);
1825 #endif
1826 break;
1827 }
1828
1829 return (uint8_t) value;
1830 }
1831
1832 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1833 uint8_t value)
1834 {
1835 switch (address) {
1836 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1837 cirrus_hook_write_gr(s, 0x00, value);
1838 break;
1839 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1840 cirrus_hook_write_gr(s, 0x10, value);
1841 break;
1842 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1843 cirrus_hook_write_gr(s, 0x12, value);
1844 break;
1845 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1846 cirrus_hook_write_gr(s, 0x14, value);
1847 break;
1848 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1849 cirrus_hook_write_gr(s, 0x01, value);
1850 break;
1851 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1852 cirrus_hook_write_gr(s, 0x11, value);
1853 break;
1854 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1855 cirrus_hook_write_gr(s, 0x13, value);
1856 break;
1857 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1858 cirrus_hook_write_gr(s, 0x15, value);
1859 break;
1860 case (CIRRUS_MMIO_BLTWIDTH + 0):
1861 cirrus_hook_write_gr(s, 0x20, value);
1862 break;
1863 case (CIRRUS_MMIO_BLTWIDTH + 1):
1864 cirrus_hook_write_gr(s, 0x21, value);
1865 break;
1866 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1867 cirrus_hook_write_gr(s, 0x22, value);
1868 break;
1869 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1870 cirrus_hook_write_gr(s, 0x23, value);
1871 break;
1872 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1873 cirrus_hook_write_gr(s, 0x24, value);
1874 break;
1875 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1876 cirrus_hook_write_gr(s, 0x25, value);
1877 break;
1878 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1879 cirrus_hook_write_gr(s, 0x26, value);
1880 break;
1881 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1882 cirrus_hook_write_gr(s, 0x27, value);
1883 break;
1884 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1885 cirrus_hook_write_gr(s, 0x28, value);
1886 break;
1887 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1888 cirrus_hook_write_gr(s, 0x29, value);
1889 break;
1890 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1891 cirrus_hook_write_gr(s, 0x2a, value);
1892 break;
1893 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1894 /* ignored */
1895 break;
1896 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1897 cirrus_hook_write_gr(s, 0x2c, value);
1898 break;
1899 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1900 cirrus_hook_write_gr(s, 0x2d, value);
1901 break;
1902 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1903 cirrus_hook_write_gr(s, 0x2e, value);
1904 break;
1905 case CIRRUS_MMIO_BLTWRITEMASK:
1906 cirrus_hook_write_gr(s, 0x2f, value);
1907 break;
1908 case CIRRUS_MMIO_BLTMODE:
1909 cirrus_hook_write_gr(s, 0x30, value);
1910 break;
1911 case CIRRUS_MMIO_BLTROP:
1912 cirrus_hook_write_gr(s, 0x32, value);
1913 break;
1914 case CIRRUS_MMIO_BLTMODEEXT:
1915 cirrus_hook_write_gr(s, 0x33, value);
1916 break;
1917 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1918 cirrus_hook_write_gr(s, 0x34, value);
1919 break;
1920 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1921 cirrus_hook_write_gr(s, 0x35, value);
1922 break;
1923 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1924 cirrus_hook_write_gr(s, 0x38, value);
1925 break;
1926 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1927 cirrus_hook_write_gr(s, 0x39, value);
1928 break;
1929 case CIRRUS_MMIO_BLTSTATUS:
1930 cirrus_hook_write_gr(s, 0x31, value);
1931 break;
1932 default:
1933 #ifdef DEBUG_CIRRUS
1934 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1935 address, value);
1936 #endif
1937 break;
1938 }
1939 }
1940
1941 /***************************************
1942 *
1943 * write mode 4/5
1944 *
1945 * assume TARGET_PAGE_SIZE >= 16
1946 *
1947 ***************************************/
1948
1949 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1950 unsigned mode,
1951 unsigned offset,
1952 uint32_t mem_value)
1953 {
1954 int x;
1955 unsigned val = mem_value;
1956 uint8_t *dst;
1957
1958 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1959 for (x = 0; x < 8; x++) {
1960 if (val & 0x80) {
1961 *dst = s->cirrus_shadow_gr1;
1962 } else if (mode == 5) {
1963 *dst = s->cirrus_shadow_gr0;
1964 }
1965 val <<= 1;
1966 dst++;
1967 }
1968 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1969 cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
1970 }
1971
1972 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1973 unsigned mode,
1974 unsigned offset,
1975 uint32_t mem_value)
1976 {
1977 int x;
1978 unsigned val = mem_value;
1979 uint8_t *dst;
1980
1981 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1982 for (x = 0; x < 8; x++) {
1983 if (val & 0x80) {
1984 *dst = s->cirrus_shadow_gr1;
1985 *(dst + 1) = s->gr[0x11];
1986 } else if (mode == 5) {
1987 *dst = s->cirrus_shadow_gr0;
1988 *(dst + 1) = s->gr[0x10];
1989 }
1990 val <<= 1;
1991 dst += 2;
1992 }
1993 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1994 cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
1995 }
1996
1997 /***************************************
1998 *
1999 * memory access between 0xa0000-0xbffff
2000 *
2001 ***************************************/
2002
2003 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
2004 {
2005 CirrusVGAState *s = opaque;
2006 unsigned bank_index;
2007 unsigned bank_offset;
2008 uint32_t val;
2009
2010 if ((s->sr[0x07] & 0x01) == 0) {
2011 return vga_mem_readb(s, addr);
2012 }
2013
2014 addr &= 0x1ffff;
2015
2016 if (addr < 0x10000) {
2017 /* XXX handle bitblt */
2018 /* video memory */
2019 bank_index = addr >> 15;
2020 bank_offset = addr & 0x7fff;
2021 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2022 bank_offset += s->cirrus_bank_base[bank_index];
2023 if ((s->gr[0x0B] & 0x14) == 0x14) {
2024 bank_offset <<= 4;
2025 } else if (s->gr[0x0B] & 0x02) {
2026 bank_offset <<= 3;
2027 }
2028 bank_offset &= s->cirrus_addr_mask;
2029 val = *(s->vram_ptr + bank_offset);
2030 } else
2031 val = 0xff;
2032 } else if (addr >= 0x18000 && addr < 0x18100) {
2033 /* memory-mapped I/O */
2034 val = 0xff;
2035 if ((s->sr[0x17] & 0x44) == 0x04) {
2036 val = cirrus_mmio_blt_read(s, addr & 0xff);
2037 }
2038 } else {
2039 val = 0xff;
2040 #ifdef DEBUG_CIRRUS
2041 printf("cirrus: mem_readb %06x\n", addr);
2042 #endif
2043 }
2044 return val;
2045 }
2046
2047 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2048 {
2049 uint32_t v;
2050 #ifdef TARGET_WORDS_BIGENDIAN
2051 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2052 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2053 #else
2054 v = cirrus_vga_mem_readb(opaque, addr);
2055 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2056 #endif
2057 return v;
2058 }
2059
2060 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2061 {
2062 uint32_t v;
2063 #ifdef TARGET_WORDS_BIGENDIAN
2064 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2065 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2066 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2067 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2068 #else
2069 v = cirrus_vga_mem_readb(opaque, addr);
2070 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2071 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2072 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2073 #endif
2074 return v;
2075 }
2076
2077 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2078 uint32_t mem_value)
2079 {
2080 CirrusVGAState *s = opaque;
2081 unsigned bank_index;
2082 unsigned bank_offset;
2083 unsigned mode;
2084
2085 if ((s->sr[0x07] & 0x01) == 0) {
2086 vga_mem_writeb(s, addr, mem_value);
2087 return;
2088 }
2089
2090 addr &= 0x1ffff;
2091
2092 if (addr < 0x10000) {
2093 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2094 /* bitblt */
2095 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2096 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2097 cirrus_bitblt_cputovideo_next(s);
2098 }
2099 } else {
2100 /* video memory */
2101 bank_index = addr >> 15;
2102 bank_offset = addr & 0x7fff;
2103 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2104 bank_offset += s->cirrus_bank_base[bank_index];
2105 if ((s->gr[0x0B] & 0x14) == 0x14) {
2106 bank_offset <<= 4;
2107 } else if (s->gr[0x0B] & 0x02) {
2108 bank_offset <<= 3;
2109 }
2110 bank_offset &= s->cirrus_addr_mask;
2111 mode = s->gr[0x05] & 0x7;
2112 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2113 *(s->vram_ptr + bank_offset) = mem_value;
2114 cpu_physical_memory_set_dirty(s->vram_offset +
2115 bank_offset);
2116 } else {
2117 if ((s->gr[0x0B] & 0x14) != 0x14) {
2118 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2119 bank_offset,
2120 mem_value);
2121 } else {
2122 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2123 bank_offset,
2124 mem_value);
2125 }
2126 }
2127 }
2128 }
2129 } else if (addr >= 0x18000 && addr < 0x18100) {
2130 /* memory-mapped I/O */
2131 if ((s->sr[0x17] & 0x44) == 0x04) {
2132 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2133 }
2134 } else {
2135 #ifdef DEBUG_CIRRUS
2136 printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
2137 #endif
2138 }
2139 }
2140
2141 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2142 {
2143 #ifdef TARGET_WORDS_BIGENDIAN
2144 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2145 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2146 #else
2147 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2148 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2149 #endif
2150 }
2151
2152 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2153 {
2154 #ifdef TARGET_WORDS_BIGENDIAN
2155 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2156 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2157 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2158 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2159 #else
2160 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2161 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2162 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2163 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2164 #endif
2165 }
2166
2167 static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
2168 cirrus_vga_mem_readb,
2169 cirrus_vga_mem_readw,
2170 cirrus_vga_mem_readl,
2171 };
2172
2173 static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
2174 cirrus_vga_mem_writeb,
2175 cirrus_vga_mem_writew,
2176 cirrus_vga_mem_writel,
2177 };
2178
2179 /***************************************
2180 *
2181 * hardware cursor
2182 *
2183 ***************************************/
2184
2185 static inline void invalidate_cursor1(CirrusVGAState *s)
2186 {
2187 if (s->last_hw_cursor_size) {
2188 vga_invalidate_scanlines((VGAState *)s,
2189 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2190 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2191 }
2192 }
2193
2194 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2195 {
2196 const uint8_t *src;
2197 uint32_t content;
2198 int y, y_min, y_max;
2199
2200 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2201 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2202 src += (s->sr[0x13] & 0x3c) * 256;
2203 y_min = 64;
2204 y_max = -1;
2205 for(y = 0; y < 64; y++) {
2206 content = ((uint32_t *)src)[0] |
2207 ((uint32_t *)src)[1] |
2208 ((uint32_t *)src)[2] |
2209 ((uint32_t *)src)[3];
2210 if (content) {
2211 if (y < y_min)
2212 y_min = y;
2213 if (y > y_max)
2214 y_max = y;
2215 }
2216 src += 16;
2217 }
2218 } else {
2219 src += (s->sr[0x13] & 0x3f) * 256;
2220 y_min = 32;
2221 y_max = -1;
2222 for(y = 0; y < 32; y++) {
2223 content = ((uint32_t *)src)[0] |
2224 ((uint32_t *)(src + 128))[0];
2225 if (content) {
2226 if (y < y_min)
2227 y_min = y;
2228 if (y > y_max)
2229 y_max = y;
2230 }
2231 src += 4;
2232 }
2233 }
2234 if (y_min > y_max) {
2235 s->last_hw_cursor_y_start = 0;
2236 s->last_hw_cursor_y_end = 0;
2237 } else {
2238 s->last_hw_cursor_y_start = y_min;
2239 s->last_hw_cursor_y_end = y_max + 1;
2240 }
2241 }
2242
2243 /* NOTE: we do not currently handle the cursor bitmap change, so we
2244 update the cursor only if it moves. */
2245 static void cirrus_cursor_invalidate(VGAState *s1)
2246 {
2247 CirrusVGAState *s = (CirrusVGAState *)s1;
2248 int size;
2249
2250 if (!s->sr[0x12] & CIRRUS_CURSOR_SHOW) {
2251 size = 0;
2252 } else {
2253 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE)
2254 size = 64;
2255 else
2256 size = 32;
2257 }
2258 /* invalidate last cursor and new cursor if any change */
2259 if (s->last_hw_cursor_size != size ||
2260 s->last_hw_cursor_x != s->hw_cursor_x ||
2261 s->last_hw_cursor_y != s->hw_cursor_y) {
2262
2263 invalidate_cursor1(s);
2264
2265 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 /* compute the real cursor min and max y */
2269 cirrus_cursor_compute_yrange(s);
2270 invalidate_cursor1(s);
2271 }
2272 }
2273
2274 static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2275 {
2276 CirrusVGAState *s = (CirrusVGAState *)s1;
2277 int w, h, bpp, x1, x2, poffset;
2278 unsigned int color0, color1;
2279 const uint8_t *palette, *src;
2280 uint32_t content;
2281
2282 if (!(s->sr[0x12] & CIRRUS_CURSOR_SHOW))
2283 return;
2284 /* fast test to see if the cursor intersects with the scan line */
2285 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2286 h = 64;
2287 } else {
2288 h = 32;
2289 }
2290 if (scr_y < s->hw_cursor_y ||
2291 scr_y >= (s->hw_cursor_y + h))
2292 return;
2293
2294 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2295 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2296 src += (s->sr[0x13] & 0x3c) * 256;
2297 src += (scr_y - s->hw_cursor_y) * 16;
2298 poffset = 8;
2299 content = ((uint32_t *)src)[0] |
2300 ((uint32_t *)src)[1] |
2301 ((uint32_t *)src)[2] |
2302 ((uint32_t *)src)[3];
2303 } else {
2304 src += (s->sr[0x13] & 0x3f) * 256;
2305 src += (scr_y - s->hw_cursor_y) * 4;
2306 poffset = 128;
2307 content = ((uint32_t *)src)[0] |
2308 ((uint32_t *)(src + 128))[0];
2309 }
2310 /* if nothing to draw, no need to continue */
2311 if (!content)
2312 return;
2313 w = h;
2314
2315 x1 = s->hw_cursor_x;
2316 if (x1 >= s->last_scr_width)
2317 return;
2318 x2 = s->hw_cursor_x + w;
2319 if (x2 > s->last_scr_width)
2320 x2 = s->last_scr_width;
2321 w = x2 - x1;
2322 palette = s->cirrus_hidden_palette;
2323 color0 = s->rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2324 c6_to_8(palette[0x0 * 3 + 1]),
2325 c6_to_8(palette[0x0 * 3 + 2]));
2326 color1 = s->rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2327 c6_to_8(palette[0xf * 3 + 1]),
2328 c6_to_8(palette[0xf * 3 + 2]));
2329 bpp = ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);
2330 d1 += x1 * bpp;
2331 switch(ds_get_bits_per_pixel(s->ds)) {
2332 default:
2333 break;
2334 case 8:
2335 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2336 break;
2337 case 15:
2338 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2339 break;
2340 case 16:
2341 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2342 break;
2343 case 32:
2344 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2345 break;
2346 }
2347 }
2348
2349 /***************************************
2350 *
2351 * LFB memory access
2352 *
2353 ***************************************/
2354
2355 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2356 {
2357 CirrusVGAState *s = (CirrusVGAState *) opaque;
2358 uint32_t ret;
2359
2360 addr &= s->cirrus_addr_mask;
2361
2362 if (((s->sr[0x17] & 0x44) == 0x44) &&
2363 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2364 /* memory-mapped I/O */
2365 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2366 } else if (0) {
2367 /* XXX handle bitblt */
2368 ret = 0xff;
2369 } else {
2370 /* video memory */
2371 if ((s->gr[0x0B] & 0x14) == 0x14) {
2372 addr <<= 4;
2373 } else if (s->gr[0x0B] & 0x02) {
2374 addr <<= 3;
2375 }
2376 addr &= s->cirrus_addr_mask;
2377 ret = *(s->vram_ptr + addr);
2378 }
2379
2380 return ret;
2381 }
2382
2383 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2384 {
2385 uint32_t v;
2386 #ifdef TARGET_WORDS_BIGENDIAN
2387 v = cirrus_linear_readb(opaque, addr) << 8;
2388 v |= cirrus_linear_readb(opaque, addr + 1);
2389 #else
2390 v = cirrus_linear_readb(opaque, addr);
2391 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2392 #endif
2393 return v;
2394 }
2395
2396 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2397 {
2398 uint32_t v;
2399 #ifdef TARGET_WORDS_BIGENDIAN
2400 v = cirrus_linear_readb(opaque, addr) << 24;
2401 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2402 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2403 v |= cirrus_linear_readb(opaque, addr + 3);
2404 #else
2405 v = cirrus_linear_readb(opaque, addr);
2406 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2407 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2408 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2409 #endif
2410 return v;
2411 }
2412
2413 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2414 uint32_t val)
2415 {
2416 CirrusVGAState *s = (CirrusVGAState *) opaque;
2417 unsigned mode;
2418
2419 addr &= s->cirrus_addr_mask;
2420
2421 if (((s->sr[0x17] & 0x44) == 0x44) &&
2422 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2423 /* memory-mapped I/O */
2424 cirrus_mmio_blt_write(s, addr & 0xff, val);
2425 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2426 /* bitblt */
2427 *s->cirrus_srcptr++ = (uint8_t) val;
2428 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2429 cirrus_bitblt_cputovideo_next(s);
2430 }
2431 } else {
2432 /* video memory */
2433 if ((s->gr[0x0B] & 0x14) == 0x14) {
2434 addr <<= 4;
2435 } else if (s->gr[0x0B] & 0x02) {
2436 addr <<= 3;
2437 }
2438 addr &= s->cirrus_addr_mask;
2439
2440 mode = s->gr[0x05] & 0x7;
2441 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2442 *(s->vram_ptr + addr) = (uint8_t) val;
2443 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2444 } else {
2445 if ((s->gr[0x0B] & 0x14) != 0x14) {
2446 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2447 } else {
2448 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2449 }
2450 }
2451 }
2452 }
2453
2454 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2455 uint32_t val)
2456 {
2457 #ifdef TARGET_WORDS_BIGENDIAN
2458 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2459 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2460 #else
2461 cirrus_linear_writeb(opaque, addr, val & 0xff);
2462 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2463 #endif
2464 }
2465
2466 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2467 uint32_t val)
2468 {
2469 #ifdef TARGET_WORDS_BIGENDIAN
2470 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2471 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2472 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2473 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2474 #else
2475 cirrus_linear_writeb(opaque, addr, val & 0xff);
2476 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2477 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2478 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2479 #endif
2480 }
2481
2482
2483 static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2484 cirrus_linear_readb,
2485 cirrus_linear_readw,
2486 cirrus_linear_readl,
2487 };
2488
2489 static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2490 cirrus_linear_writeb,
2491 cirrus_linear_writew,
2492 cirrus_linear_writel,
2493 };
2494
2495 static void cirrus_linear_mem_writeb(void *opaque, target_phys_addr_t addr,
2496 uint32_t val)
2497 {
2498 CirrusVGAState *s = (CirrusVGAState *) opaque;
2499
2500 addr &= s->cirrus_addr_mask;
2501 *(s->vram_ptr + addr) = val;
2502 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2503 }
2504
2505 static void cirrus_linear_mem_writew(void *opaque, target_phys_addr_t addr,
2506 uint32_t val)
2507 {
2508 CirrusVGAState *s = (CirrusVGAState *) opaque;
2509
2510 addr &= s->cirrus_addr_mask;
2511 cpu_to_le16w((uint16_t *)(s->vram_ptr + addr), val);
2512 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2513 }
2514
2515 static void cirrus_linear_mem_writel(void *opaque, target_phys_addr_t addr,
2516 uint32_t val)
2517 {
2518 CirrusVGAState *s = (CirrusVGAState *) opaque;
2519
2520 addr &= s->cirrus_addr_mask;
2521 cpu_to_le32w((uint32_t *)(s->vram_ptr + addr), val);
2522 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2523 }
2524
2525 /***************************************
2526 *
2527 * system to screen memory access
2528 *
2529 ***************************************/
2530
2531
2532 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2533 {
2534 uint32_t ret;
2535
2536 /* XXX handle bitblt */
2537 ret = 0xff;
2538 return ret;
2539 }
2540
2541 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2542 {
2543 uint32_t v;
2544 #ifdef TARGET_WORDS_BIGENDIAN
2545 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2546 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2547 #else
2548 v = cirrus_linear_bitblt_readb(opaque, addr);
2549 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2550 #endif
2551 return v;
2552 }
2553
2554 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2555 {
2556 uint32_t v;
2557 #ifdef TARGET_WORDS_BIGENDIAN
2558 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2559 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2560 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2561 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2562 #else
2563 v = cirrus_linear_bitblt_readb(opaque, addr);
2564 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2565 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2566 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2567 #endif
2568 return v;
2569 }
2570
2571 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2572 uint32_t val)
2573 {
2574 CirrusVGAState *s = (CirrusVGAState *) opaque;
2575
2576 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2577 /* bitblt */
2578 *s->cirrus_srcptr++ = (uint8_t) val;
2579 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2580 cirrus_bitblt_cputovideo_next(s);
2581 }
2582 }
2583 }
2584
2585 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2586 uint32_t val)
2587 {
2588 #ifdef TARGET_WORDS_BIGENDIAN
2589 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2590 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2591 #else
2592 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2593 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2594 #endif
2595 }
2596
2597 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2598 uint32_t val)
2599 {
2600 #ifdef TARGET_WORDS_BIGENDIAN
2601 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2602 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2603 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2604 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2605 #else
2606 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2607 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2608 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2609 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2610 #endif
2611 }
2612
2613
2614 static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2615 cirrus_linear_bitblt_readb,
2616 cirrus_linear_bitblt_readw,
2617 cirrus_linear_bitblt_readl,
2618 };
2619
2620 static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2621 cirrus_linear_bitblt_writeb,
2622 cirrus_linear_bitblt_writew,
2623 cirrus_linear_bitblt_writel,
2624 };
2625
2626 static void map_linear_vram(CirrusVGAState *s)
2627 {
2628 vga_dirty_log_stop((VGAState *)s);
2629
2630 if (!s->map_addr && s->lfb_addr && s->lfb_end) {
2631 s->map_addr = s->lfb_addr;
2632 s->map_end = s->lfb_end;
2633 cpu_register_physical_memory(s->map_addr, s->map_end - s->map_addr, s->vram_offset);
2634 }
2635
2636 if (!s->map_addr)
2637 return;
2638
2639 s->lfb_vram_mapped = 0;
2640
2641 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2642 && !((s->sr[0x07] & 0x01) == 0)
2643 && !((s->gr[0x0B] & 0x14) == 0x14)
2644 && !(s->gr[0x0B] & 0x02)) {
2645
2646 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2647 (s->vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2648 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2649 (s->vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2650
2651 s->lfb_vram_mapped = 1;
2652 }
2653 else {
2654 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2655 s->vga_io_memory);
2656 }
2657
2658 vga_dirty_log_start((VGAState *)s);
2659 }
2660
2661 static void unmap_linear_vram(CirrusVGAState *s)
2662 {
2663 vga_dirty_log_stop((VGAState *)s);
2664
2665 if (s->map_addr && s->lfb_addr && s->lfb_end)
2666 s->map_addr = s->map_end = 0;
2667
2668 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2669 s->vga_io_memory);
2670
2671 vga_dirty_log_start((VGAState *)s);
2672 }
2673
2674 /* Compute the memory access functions */
2675 static void cirrus_update_memory_access(CirrusVGAState *s)
2676 {
2677 unsigned mode;
2678
2679 if ((s->sr[0x17] & 0x44) == 0x44) {
2680 goto generic_io;
2681 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2682 goto generic_io;
2683 } else {
2684 if ((s->gr[0x0B] & 0x14) == 0x14) {
2685 goto generic_io;
2686 } else if (s->gr[0x0B] & 0x02) {
2687 goto generic_io;
2688 }
2689
2690 mode = s->gr[0x05] & 0x7;
2691 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2692 map_linear_vram(s);
2693 s->cirrus_linear_write[0] = cirrus_linear_mem_writeb;
2694 s->cirrus_linear_write[1] = cirrus_linear_mem_writew;
2695 s->cirrus_linear_write[2] = cirrus_linear_mem_writel;
2696 } else {
2697 generic_io:
2698 unmap_linear_vram(s);
2699 s->cirrus_linear_write[0] = cirrus_linear_writeb;
2700 s->cirrus_linear_write[1] = cirrus_linear_writew;
2701 s->cirrus_linear_write[2] = cirrus_linear_writel;
2702 }
2703 }
2704 }
2705
2706
2707 /* I/O ports */
2708
2709 static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2710 {
2711 CirrusVGAState *s = opaque;
2712 int val, index;
2713
2714 /* check port range access depending on color/monochrome mode */
2715 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2716 || (addr >= 0x3d0 && addr <= 0x3df
2717 && !(s->msr & MSR_COLOR_EMULATION))) {
2718 val = 0xff;
2719 } else {
2720 switch (addr) {
2721 case 0x3c0:
2722 if (s->ar_flip_flop == 0) {
2723 val = s->ar_index;
2724 } else {
2725 val = 0;
2726 }
2727 break;
2728 case 0x3c1:
2729 index = s->ar_index & 0x1f;
2730 if (index < 21)
2731 val = s->ar[index];
2732 else
2733 val = 0;
2734 break;
2735 case 0x3c2:
2736 val = s->st00;
2737 break;
2738 case 0x3c4:
2739 val = s->sr_index;
2740 break;
2741 case 0x3c5:
2742 if (cirrus_hook_read_sr(s, s->sr_index, &val))
2743 break;
2744 val = s->sr[s->sr_index];
2745 #ifdef DEBUG_VGA_REG
2746 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2747 #endif
2748 break;
2749 case 0x3c6:
2750 cirrus_read_hidden_dac(s, &val);
2751 break;
2752 case 0x3c7:
2753 val = s->dac_state;
2754 break;
2755 case 0x3c8:
2756 val = s->dac_write_index;
2757 s->cirrus_hidden_dac_lockindex = 0;
2758 break;
2759 case 0x3c9:
2760 if (cirrus_hook_read_palette(s, &val))
2761 break;
2762 val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
2763 if (++s->dac_sub_index == 3) {
2764 s->dac_sub_index = 0;
2765 s->dac_read_index++;
2766 }
2767 break;
2768 case 0x3ca:
2769 val = s->fcr;
2770 break;
2771 case 0x3cc:
2772 val = s->msr;
2773 break;
2774 case 0x3ce:
2775 val = s->gr_index;
2776 break;
2777 case 0x3cf:
2778 if (cirrus_hook_read_gr(s, s->gr_index, &val))
2779 break;
2780 val = s->gr[s->gr_index];
2781 #ifdef DEBUG_VGA_REG
2782 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2783 #endif
2784 break;
2785 case 0x3b4:
2786 case 0x3d4:
2787 val = s->cr_index;
2788 break;
2789 case 0x3b5:
2790 case 0x3d5:
2791 if (cirrus_hook_read_cr(s, s->cr_index, &val))
2792 break;
2793 val = s->cr[s->cr_index];
2794 #ifdef DEBUG_VGA_REG
2795 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2796 #endif
2797 break;
2798 case 0x3ba:
2799 case 0x3da:
2800 /* just toggle to fool polling */
2801 val = s->st01 = s->retrace((VGAState *) s);
2802 s->ar_flip_flop = 0;
2803 break;
2804 default:
2805 val = 0x00;
2806 break;
2807 }
2808 }
2809 #if defined(DEBUG_VGA)
2810 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2811 #endif
2812 return val;
2813 }
2814
2815 static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2816 {
2817 CirrusVGAState *s = opaque;
2818 int index;
2819
2820 /* check port range access depending on color/monochrome mode */
2821 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2822 || (addr >= 0x3d0 && addr <= 0x3df
2823 && !(s->msr & MSR_COLOR_EMULATION)))
2824 return;
2825
2826 #ifdef DEBUG_VGA
2827 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2828 #endif
2829
2830 switch (addr) {
2831 case 0x3c0:
2832 if (s->ar_flip_flop == 0) {
2833 val &= 0x3f;
2834 s->ar_index = val;
2835 } else {
2836 index = s->ar_index & 0x1f;
2837 switch (index) {
2838 case 0x00 ... 0x0f:
2839 s->ar[index] = val & 0x3f;
2840 break;
2841 case 0x10:
2842 s->ar[index] = val & ~0x10;
2843 break;
2844 case 0x11:
2845 s->ar[index] = val;
2846 break;
2847 case 0x12:
2848 s->ar[index] = val & ~0xc0;
2849 break;
2850 case 0x13:
2851 s->ar[index] = val & ~0xf0;
2852 break;
2853 case 0x14:
2854 s->ar[index] = val & ~0xf0;
2855 break;
2856 default:
2857 break;
2858 }
2859 }
2860 s->ar_flip_flop ^= 1;
2861 break;
2862 case 0x3c2:
2863 s->msr = val & ~0x10;
2864 s->update_retrace_info((VGAState *) s);
2865 break;
2866 case 0x3c4:
2867 s->sr_index = val;
2868 break;
2869 case 0x3c5:
2870 if (cirrus_hook_write_sr(s, s->sr_index, val))
2871 break;
2872 #ifdef DEBUG_VGA_REG
2873 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2874 #endif
2875 s->sr[s->sr_index] = val & sr_mask[s->sr_index];
2876 if (s->sr_index == 1) s->update_retrace_info((VGAState *) s);
2877 break;
2878 case 0x3c6:
2879 cirrus_write_hidden_dac(s, val);
2880 break;
2881 case 0x3c7:
2882 s->dac_read_index = val;
2883 s->dac_sub_index = 0;
2884 s->dac_state = 3;
2885 break;
2886 case 0x3c8:
2887 s->dac_write_index = val;
2888 s->dac_sub_index = 0;
2889 s->dac_state = 0;
2890 break;
2891 case 0x3c9:
2892 if (cirrus_hook_write_palette(s, val))
2893 break;
2894 s->dac_cache[s->dac_sub_index] = val;
2895 if (++s->dac_sub_index == 3) {
2896 memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
2897 s->dac_sub_index = 0;
2898 s->dac_write_index++;
2899 }
2900 break;
2901 case 0x3ce:
2902 s->gr_index = val;
2903 break;
2904 case 0x3cf:
2905 if (cirrus_hook_write_gr(s, s->gr_index, val))
2906 break;
2907 #ifdef DEBUG_VGA_REG
2908 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2909 #endif
2910 s->gr[s->gr_index] = val & gr_mask[s->gr_index];
2911 break;
2912 case 0x3b4:
2913 case 0x3d4:
2914 s->cr_index = val;
2915 break;
2916 case 0x3b5:
2917 case 0x3d5:
2918 if (cirrus_hook_write_cr(s, s->cr_index, val))
2919 break;
2920 #ifdef DEBUG_VGA_REG
2921 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2922 #endif
2923 /* handle CR0-7 protection */
2924 if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) {
2925 /* can always write bit 4 of CR7 */
2926 if (s->cr_index == 7)
2927 s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
2928 return;
2929 }
2930 switch (s->cr_index) {
2931 case 0x01: /* horizontal display end */
2932 case 0x07:
2933 case 0x09:
2934 case 0x0c:
2935 case 0x0d:
2936 case 0x12: /* vertical display end */
2937 s->cr[s->cr_index] = val;
2938 break;
2939
2940 default:
2941 s->cr[s->cr_index] = val;
2942 break;
2943 }
2944
2945 switch(s->cr_index) {
2946 case 0x00:
2947 case 0x04:
2948 case 0x05:
2949 case 0x06:
2950 case 0x07:
2951 case 0x11:
2952 case 0x17:
2953 s->update_retrace_info((VGAState *) s);
2954 break;
2955 }
2956 break;
2957 case 0x3ba:
2958 case 0x3da:
2959 s->fcr = val & 0x10;
2960 break;
2961 }
2962 }
2963
2964 /***************************************
2965 *
2966 * memory-mapped I/O access
2967 *
2968 ***************************************/
2969
2970 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2971 {
2972 CirrusVGAState *s = (CirrusVGAState *) opaque;
2973
2974 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2975
2976 if (addr >= 0x100) {
2977 return cirrus_mmio_blt_read(s, addr - 0x100);
2978 } else {
2979 return vga_ioport_read(s, addr + 0x3c0);
2980 }
2981 }
2982
2983 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2984 {
2985 uint32_t v;
2986 #ifdef TARGET_WORDS_BIGENDIAN
2987 v = cirrus_mmio_readb(opaque, addr) << 8;
2988 v |= cirrus_mmio_readb(opaque, addr + 1);
2989 #else
2990 v = cirrus_mmio_readb(opaque, addr);
2991 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2992 #endif
2993 return v;
2994 }
2995
2996 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2997 {
2998 uint32_t v;
2999 #ifdef TARGET_WORDS_BIGENDIAN
3000 v = cirrus_mmio_readb(opaque, addr) << 24;
3001 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
3002 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
3003 v |= cirrus_mmio_readb(opaque, addr + 3);
3004 #else
3005 v = cirrus_mmio_readb(opaque, addr);
3006 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
3007 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
3008 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
3009 #endif
3010 return v;
3011 }
3012
3013 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
3014 uint32_t val)
3015 {
3016 CirrusVGAState *s = (CirrusVGAState *) opaque;
3017
3018 addr &= CIRRUS_PNPMMIO_SIZE - 1;
3019
3020 if (addr >= 0x100) {
3021 cirrus_mmio_blt_write(s, addr - 0x100, val);
3022 } else {
3023 vga_ioport_write(s, addr + 0x3c0, val);
3024 }
3025 }
3026
3027 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
3028 uint32_t val)
3029 {
3030 #ifdef TARGET_WORDS_BIGENDIAN
3031 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
3032 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
3033 #else
3034 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3035 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3036 #endif
3037 }
3038
3039 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
3040 uint32_t val)
3041 {
3042 #ifdef TARGET_WORDS_BIGENDIAN
3043 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
3044 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
3045 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
3046 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
3047 #else
3048 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3049 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3050 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
3051 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
3052 #endif
3053 }
3054
3055
3056 static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
3057 cirrus_mmio_readb,
3058 cirrus_mmio_readw,
3059 cirrus_mmio_readl,
3060 };
3061
3062 static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
3063 cirrus_mmio_writeb,
3064 cirrus_mmio_writew,
3065 cirrus_mmio_writel,
3066 };
3067
3068 /* load/save state */
3069
3070 static void cirrus_vga_save(QEMUFile *f, void *opaque)
3071 {
3072 CirrusVGAState *s = opaque;
3073
3074 if (s->pci_dev)
3075 pci_device_save(s->pci_dev, f);
3076
3077 qemu_put_be32s(f, &s->latch);
3078 qemu_put_8s(f, &s->sr_index);
3079 qemu_put_buffer(f, s->sr, 256);
3080 qemu_put_8s(f, &s->gr_index);
3081 qemu_put_8s(f, &s->cirrus_shadow_gr0);
3082 qemu_put_8s(f, &s->cirrus_shadow_gr1);
3083 qemu_put_buffer(f, s->gr + 2, 254);
3084 qemu_put_8s(f, &s->ar_index);
3085 qemu_put_buffer(f, s->ar, 21);
3086 qemu_put_be32(f, s->ar_flip_flop);
3087 qemu_put_8s(f, &s->cr_index);
3088 qemu_put_buffer(f, s->cr, 256);
3089 qemu_put_8s(f, &s->msr);
3090 qemu_put_8s(f, &s->fcr);
3091 qemu_put_8s(f, &s->st00);
3092 qemu_put_8s(f, &s->st01);
3093
3094 qemu_put_8s(f, &s->dac_state);
3095 qemu_put_8s(f, &s->dac_sub_index);
3096 qemu_put_8s(f, &s->dac_read_index);
3097 qemu_put_8s(f, &s->dac_write_index);
3098 qemu_put_buffer(f, s->dac_cache, 3);
3099 qemu_put_buffer(f, s->palette, 768);
3100
3101 qemu_put_be32(f, s->bank_offset);
3102
3103 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
3104 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
3105
3106 qemu_put_be32s(f, &s->hw_cursor_x);
3107 qemu_put_be32s(f, &s->hw_cursor_y);
3108 /* XXX: we do not save the bitblt state - we assume we do not save
3109 the state when the blitter is active */
3110 }
3111
3112 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3113 {
3114 CirrusVGAState *s = opaque;
3115 int ret;
3116
3117 if (version_id > 2)
3118 return -EINVAL;
3119
3120 if (s->pci_dev && version_id >= 2) {
3121 ret = pci_device_load(s->pci_dev, f);
3122 if (ret < 0)
3123 return ret;
3124 }
3125
3126 qemu_get_be32s(f, &s->latch);
3127 qemu_get_8s(f, &s->sr_index);
3128 qemu_get_buffer(f, s->sr, 256);
3129 qemu_get_8s(f, &s->gr_index);
3130 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3131 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3132 s->gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3133 s->gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3134 qemu_get_buffer(f, s->gr + 2, 254);
3135 qemu_get_8s(f, &s->ar_index);
3136 qemu_get_buffer(f, s->ar, 21);
3137 s->ar_flip_flop=qemu_get_be32(f);
3138 qemu_get_8s(f, &s->cr_index);
3139 qemu_get_buffer(f, s->cr, 256);
3140 qemu_get_8s(f, &s->msr);
3141 qemu_get_8s(f, &s->fcr);
3142 qemu_get_8s(f, &s->st00);
3143 qemu_get_8s(f, &s->st01);
3144
3145 qemu_get_8s(f, &s->dac_state);
3146 qemu_get_8s(f, &s->dac_sub_index);
3147 qemu_get_8s(f, &s->dac_read_index);
3148 qemu_get_8s(f, &s->dac_write_index);
3149 qemu_get_buffer(f, s->dac_cache, 3);
3150 qemu_get_buffer(f, s->palette, 768);
3151
3152 s->bank_offset=qemu_get_be32(f);
3153
3154 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3155 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3156
3157 qemu_get_be32s(f, &s->hw_cursor_x);
3158 qemu_get_be32s(f, &s->hw_cursor_y);
3159
3160 cirrus_update_memory_access(s);
3161 /* force refresh */
3162 s->graphic_mode = -1;
3163 cirrus_update_bank_ptr(s, 0);
3164 cirrus_update_bank_ptr(s, 1);
3165 return 0;
3166 }
3167
3168 /***************************************
3169 *
3170 * initialize
3171 *
3172 ***************************************/
3173
3174 static void cirrus_reset(void *opaque)
3175 {
3176 CirrusVGAState *s = opaque;
3177
3178 vga_reset(s);
3179 unmap_linear_vram(s);
3180 s->sr[0x06] = 0x0f;
3181 if (s->device_id == CIRRUS_ID_CLGD5446) {
3182 /* 4MB 64 bit memory config, always PCI */
3183 s->sr[0x1F] = 0x2d; // MemClock
3184 s->gr[0x18] = 0x0f; // fastest memory configuration
3185 s->sr[0x0f] = 0x98;
3186 s->sr[0x17] = 0x20;
3187 s->sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3188 } else {
3189 s->sr[0x1F] = 0x22; // MemClock
3190 s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
3191 s->sr[0x17] = s->bustype;
3192 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3193 }
3194 s->cr[0x27] = s->device_id;
3195
3196 /* Win2K seems to assume that the pattern buffer is at 0xff
3197 initially ! */
3198 memset(s->vram_ptr, 0xff, s->real_vram_size);
3199
3200 s->cirrus_hidden_dac_lockindex = 5;
3201 s->cirrus_hidden_dac_data = 0;
3202 }
3203
3204 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3205 {
3206 int i;
3207 static int inited;
3208
3209 if (!inited) {
3210 inited = 1;
3211 for(i = 0;i < 256; i++)
3212 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3213 rop_to_index[CIRRUS_ROP_0] = 0;
3214 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3215 rop_to_index[CIRRUS_ROP_NOP] = 2;
3216 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3217 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3218 rop_to_index[CIRRUS_ROP_SRC] = 5;
3219 rop_to_index[CIRRUS_ROP_1] = 6;
3220 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3221 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3222 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3223 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3224 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3225 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3226 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3227 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3228 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3229 s->device_id = device_id;
3230 if (is_pci)
3231 s->bustype = CIRRUS_BUSTYPE_PCI;
3232 else
3233 s->bustype = CIRRUS_BUSTYPE_ISA;
3234 }
3235
3236 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
3237
3238 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
3239 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
3240 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
3241 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
3242
3243 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
3244
3245 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
3246 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
3247 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
3248 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
3249
3250 s->vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
3251 cirrus_vga_mem_write, s);
3252 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3253 s->vga_io_memory);
3254 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3255
3256 /* I/O handler for LFB */
3257 s->cirrus_linear_io_addr =
3258 cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write, s);
3259 s->cirrus_linear_write = cpu_get_io_memory_write(s->cirrus_linear_io_addr);
3260
3261 /* I/O handler for LFB */
3262 s->cirrus_linear_bitblt_io_addr =
3263 cpu_register_io_memory(0, cirrus_linear_bitblt_read,
3264 cirrus_linear_bitblt_write, s);
3265
3266 /* I/O handler for memory-mapped I/O */
3267 s->cirrus_mmio_io_addr =
3268 cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
3269
3270 s->real_vram_size =
3271 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
3272
3273 /* XXX: s->vram_size must be a power of two */
3274 s->cirrus_addr_mask = s->real_vram_size - 1;
3275 s->linear_mmio_mask = s->real_vram_size - 256;
3276
3277 s->get_bpp = cirrus_get_bpp;
3278 s->get_offsets = cirrus_get_offsets;
3279 s->get_resolution = cirrus_get_resolution;
3280 s->cursor_invalidate = cirrus_cursor_invalidate;
3281 s->cursor_draw_line = cirrus_cursor_draw_line;
3282
3283 qemu_register_reset(cirrus_reset, s);
3284 cirrus_reset(s);
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(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 vga_ram_base, vga_ram_offset, vga_ram_size);
3303 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3304 s->ds = graphic_console_init(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 vga_dirty_log_stop((VGAState *)s);
3321
3322 /* XXX: add byte swapping apertures */
3323 cpu_register_physical_memory(addr, s->vram_size,
3324 s->cirrus_linear_io_addr);
3325 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3326 s->cirrus_linear_bitblt_io_addr);
3327
3328 s->map_addr = s->map_end = 0;
3329 s->lfb_addr = addr & TARGET_PAGE_MASK;
3330 s->lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3331 /* account for overflow */
3332 if (s->lfb_end < addr + VGA_RAM_SIZE)
3333 s->lfb_end = addr + VGA_RAM_SIZE;
3334
3335 vga_dirty_log_start((VGAState *)s);
3336 }
3337
3338 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3339 uint32_t addr, uint32_t size, int type)
3340 {
3341 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3342
3343 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3344 s->cirrus_mmio_io_addr);
3345 }
3346
3347 static void pci_cirrus_write_config(PCIDevice *d,
3348 uint32_t address, uint32_t val, int len)
3349 {
3350 PCICirrusVGAState *pvs = container_of(d, PCICirrusVGAState, dev);
3351 CirrusVGAState *s = &pvs->cirrus_vga;
3352
3353 vga_dirty_log_stop((VGAState *)s);
3354
3355 pci_default_write_config(d, address, val, len);
3356 if (s->map_addr && pvs->dev.io_regions[0].addr == -1)
3357 s->map_addr = 0;
3358 cirrus_update_memory_access(s);
3359
3360 vga_dirty_log_start((VGAState *)s);
3361 }
3362
3363 void pci_cirrus_vga_init(PCIBus *bus, uint8_t *vga_ram_base,
3364 ram_addr_t vga_ram_offset, int vga_ram_size)
3365 {
3366 PCICirrusVGAState *d;
3367 uint8_t *pci_conf;
3368 CirrusVGAState *s;
3369 int device_id;
3370
3371 device_id = CIRRUS_ID_CLGD5446;
3372
3373 /* setup PCI configuration registers */
3374 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
3375 sizeof(PCICirrusVGAState),
3376 -1, NULL, pci_cirrus_write_config);
3377 pci_conf = d->dev.config;
3378 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CIRRUS);
3379 pci_config_set_device_id(pci_conf, device_id);
3380 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3381 pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA);
3382 pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
3383
3384 /* setup VGA */
3385 s = &d->cirrus_vga;
3386 vga_common_init((VGAState *)s,
3387 vga_ram_base, vga_ram_offset, vga_ram_size);
3388 cirrus_init_common(s, device_id, 1);
3389
3390 s->ds = graphic_console_init(s->update, s->invalidate,
3391 s->screen_dump, s->text_update, s);
3392
3393 s->pci_dev = (PCIDevice *)d;
3394
3395 /* setup memory space */
3396 /* memory #0 LFB */
3397 /* memory #1 memory-mapped I/O */
3398 /* XXX: s->vram_size must be a power of two */
3399 pci_register_io_region((PCIDevice *)d, 0, 0x2000000,
3400 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3401 if (device_id == CIRRUS_ID_CLGD5446) {
3402 pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3403 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3404 }
3405 /* XXX: ROM BIOS */
3406 }