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graphical_console_init change (Stefano Stabellini)
[qemu.git] / hw / cirrus_vga.c
1 /*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 /*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29 #include "hw.h"
30 #include "pc.h"
31 #include "pci.h"
32 #include "console.h"
33 #include "vga_int.h"
34 #include "kvm.h"
35
36 /*
37 * TODO:
38 * - destination write mask support not complete (bits 5..7)
39 * - optimize linear mappings
40 * - optimize bitblt functions
41 */
42
43 //#define DEBUG_CIRRUS
44 //#define DEBUG_BITBLT
45
46 /***************************************
47 *
48 * definitions
49 *
50 ***************************************/
51
52 #define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
53
54 // ID
55 #define CIRRUS_ID_CLGD5422 (0x23<<2)
56 #define CIRRUS_ID_CLGD5426 (0x24<<2)
57 #define CIRRUS_ID_CLGD5424 (0x25<<2)
58 #define CIRRUS_ID_CLGD5428 (0x26<<2)
59 #define CIRRUS_ID_CLGD5430 (0x28<<2)
60 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
61 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
62 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
63
64 // sequencer 0x07
65 #define CIRRUS_SR7_BPP_VGA 0x00
66 #define CIRRUS_SR7_BPP_SVGA 0x01
67 #define CIRRUS_SR7_BPP_MASK 0x0e
68 #define CIRRUS_SR7_BPP_8 0x00
69 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
70 #define CIRRUS_SR7_BPP_24 0x04
71 #define CIRRUS_SR7_BPP_16 0x06
72 #define CIRRUS_SR7_BPP_32 0x08
73 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
74
75 // sequencer 0x0f
76 #define CIRRUS_MEMSIZE_512k 0x08
77 #define CIRRUS_MEMSIZE_1M 0x10
78 #define CIRRUS_MEMSIZE_2M 0x18
79 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
80
81 // sequencer 0x12
82 #define CIRRUS_CURSOR_SHOW 0x01
83 #define CIRRUS_CURSOR_HIDDENPEL 0x02
84 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
85
86 // sequencer 0x17
87 #define CIRRUS_BUSTYPE_VLBFAST 0x10
88 #define CIRRUS_BUSTYPE_PCI 0x20
89 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
90 #define CIRRUS_BUSTYPE_ISA 0x38
91 #define CIRRUS_MMIO_ENABLE 0x04
92 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
93 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
94
95 // control 0x0b
96 #define CIRRUS_BANKING_DUAL 0x01
97 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
98
99 // control 0x30
100 #define CIRRUS_BLTMODE_BACKWARDS 0x01
101 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
102 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
103 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
104 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
105 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
106 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
107 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
108 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
109 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
110 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
111
112 // control 0x31
113 #define CIRRUS_BLT_BUSY 0x01
114 #define CIRRUS_BLT_START 0x02
115 #define CIRRUS_BLT_RESET 0x04
116 #define CIRRUS_BLT_FIFOUSED 0x10
117 #define CIRRUS_BLT_AUTOSTART 0x80
118
119 // control 0x32
120 #define CIRRUS_ROP_0 0x00
121 #define CIRRUS_ROP_SRC_AND_DST 0x05
122 #define CIRRUS_ROP_NOP 0x06
123 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
124 #define CIRRUS_ROP_NOTDST 0x0b
125 #define CIRRUS_ROP_SRC 0x0d
126 #define CIRRUS_ROP_1 0x0e
127 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
128 #define CIRRUS_ROP_SRC_XOR_DST 0x59
129 #define CIRRUS_ROP_SRC_OR_DST 0x6d
130 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
131 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
132 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
133 #define CIRRUS_ROP_NOTSRC 0xd0
134 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
135 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
136
137 #define CIRRUS_ROP_NOP_INDEX 2
138 #define CIRRUS_ROP_SRC_INDEX 5
139
140 // control 0x33
141 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
142 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
143 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
144
145 // memory-mapped IO
146 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
147 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
148 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
149 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
150 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
151 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
152 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
153 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
154 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
155 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
156 #define CIRRUS_MMIO_BLTROP 0x1a // byte
157 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
159 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
160 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
161 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
163 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
167 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
168 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
169 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
170 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
171 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
172 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
173 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
174 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
175
176 // PCI 0x00: vendor, 0x02: device
177 #define PCI_VENDOR_CIRRUS 0x1013
178 #define PCI_DEVICE_CLGD5462 0x00d0
179 #define PCI_DEVICE_CLGD5465 0x00d6
180
181 // PCI 0x04: command(word), 0x06(word): status
182 #define PCI_COMMAND_IOACCESS 0x0001
183 #define PCI_COMMAND_MEMACCESS 0x0002
184 #define PCI_COMMAND_BUSMASTER 0x0004
185 #define PCI_COMMAND_SPECIALCYCLE 0x0008
186 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
187 #define PCI_COMMAND_PALETTESNOOPING 0x0020
188 #define PCI_COMMAND_PARITYDETECTION 0x0040
189 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
190 #define PCI_COMMAND_SERR 0x0100
191 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
192 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
193 #define PCI_CLASS_BASE_DISPLAY 0x03
194 // PCI 0x08, 0x00ff0000
195 #define PCI_CLASS_SUB_VGA 0x00
196 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
197 #define PCI_CLASS_HEADERTYPE_00h 0x00
198 // 0x10-0x3f (headertype 00h)
199 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
200 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
201 #define PCI_MAP_MEM 0x0
202 #define PCI_MAP_IO 0x1
203 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
204 #define PCI_MAP_IO_ADDR_MASK (~0x3)
205 #define PCI_MAP_MEMFLAGS_32BIT 0x0
206 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
207 #define PCI_MAP_MEMFLAGS_64BIT 0x4
208 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
209 // PCI 0x28: cardbus CIS pointer
210 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
211 // PCI 0x30: expansion ROM base address
212 #define PCI_ROMBIOS_ENABLED 0x1
213 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
214 // PCI 0x38: reserved
215 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
216
217 #define CIRRUS_PNPMMIO_SIZE 0x1000
218
219
220 /* I/O and memory hook */
221 #define CIRRUS_HOOK_NOT_HANDLED 0
222 #define CIRRUS_HOOK_HANDLED 1
223
224 #define ABS(a) ((signed)(a) > 0 ? a : -a)
225
226 #define BLTUNSAFE(s) \
227 ( \
228 ( /* check dst is within bounds */ \
229 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
230 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
231 (s)->vram_size \
232 ) || \
233 ( /* check src is within bounds */ \
234 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
235 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
236 (s)->vram_size \
237 ) \
238 )
239
240 struct CirrusVGAState;
241 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
242 uint8_t * dst, const uint8_t * src,
243 int dstpitch, int srcpitch,
244 int bltwidth, int bltheight);
245 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
246 uint8_t *dst, int dst_pitch, int width, int height);
247
248 typedef struct CirrusVGAState {
249 VGA_STATE_COMMON
250
251 int cirrus_linear_io_addr;
252 int cirrus_linear_bitblt_io_addr;
253 int cirrus_mmio_io_addr;
254 uint32_t cirrus_addr_mask;
255 uint32_t linear_mmio_mask;
256 uint8_t cirrus_shadow_gr0;
257 uint8_t cirrus_shadow_gr1;
258 uint8_t cirrus_hidden_dac_lockindex;
259 uint8_t cirrus_hidden_dac_data;
260 uint32_t cirrus_bank_base[2];
261 uint32_t cirrus_bank_limit[2];
262 uint8_t cirrus_hidden_palette[48];
263 uint32_t hw_cursor_x;
264 uint32_t hw_cursor_y;
265 int cirrus_blt_pixelwidth;
266 int cirrus_blt_width;
267 int cirrus_blt_height;
268 int cirrus_blt_dstpitch;
269 int cirrus_blt_srcpitch;
270 uint32_t cirrus_blt_fgcol;
271 uint32_t cirrus_blt_bgcol;
272 uint32_t cirrus_blt_dstaddr;
273 uint32_t cirrus_blt_srcaddr;
274 uint8_t cirrus_blt_mode;
275 uint8_t cirrus_blt_modeext;
276 cirrus_bitblt_rop_t cirrus_rop;
277 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
278 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
279 uint8_t *cirrus_srcptr;
280 uint8_t *cirrus_srcptr_end;
281 uint32_t cirrus_srccounter;
282 /* hwcursor display state */
283 int last_hw_cursor_size;
284 int last_hw_cursor_x;
285 int last_hw_cursor_y;
286 int last_hw_cursor_y_start;
287 int last_hw_cursor_y_end;
288 int real_vram_size; /* XXX: suppress that */
289 CPUWriteMemoryFunc **cirrus_linear_write;
290 int device_id;
291 int bustype;
292 } CirrusVGAState;
293
294 typedef struct PCICirrusVGAState {
295 PCIDevice dev;
296 CirrusVGAState cirrus_vga;
297 } PCICirrusVGAState;
298
299 static uint8_t rop_to_index[256];
300
301 /***************************************
302 *
303 * prototypes.
304 *
305 ***************************************/
306
307
308 static void cirrus_bitblt_reset(CirrusVGAState *s);
309 static void cirrus_update_memory_access(CirrusVGAState *s);
310
311 /***************************************
312 *
313 * raster operations
314 *
315 ***************************************/
316
317 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
318 uint8_t *dst,const uint8_t *src,
319 int dstpitch,int srcpitch,
320 int bltwidth,int bltheight)
321 {
322 }
323
324 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
325 uint8_t *dst,
326 int dstpitch, int bltwidth,int bltheight)
327 {
328 }
329
330 #define ROP_NAME 0
331 #define ROP_OP(d, s) d = 0
332 #include "cirrus_vga_rop.h"
333
334 #define ROP_NAME src_and_dst
335 #define ROP_OP(d, s) d = (s) & (d)
336 #include "cirrus_vga_rop.h"
337
338 #define ROP_NAME src_and_notdst
339 #define ROP_OP(d, s) d = (s) & (~(d))
340 #include "cirrus_vga_rop.h"
341
342 #define ROP_NAME notdst
343 #define ROP_OP(d, s) d = ~(d)
344 #include "cirrus_vga_rop.h"
345
346 #define ROP_NAME src
347 #define ROP_OP(d, s) d = s
348 #include "cirrus_vga_rop.h"
349
350 #define ROP_NAME 1
351 #define ROP_OP(d, s) d = ~0
352 #include "cirrus_vga_rop.h"
353
354 #define ROP_NAME notsrc_and_dst
355 #define ROP_OP(d, s) d = (~(s)) & (d)
356 #include "cirrus_vga_rop.h"
357
358 #define ROP_NAME src_xor_dst
359 #define ROP_OP(d, s) d = (s) ^ (d)
360 #include "cirrus_vga_rop.h"
361
362 #define ROP_NAME src_or_dst
363 #define ROP_OP(d, s) d = (s) | (d)
364 #include "cirrus_vga_rop.h"
365
366 #define ROP_NAME notsrc_or_notdst
367 #define ROP_OP(d, s) d = (~(s)) | (~(d))
368 #include "cirrus_vga_rop.h"
369
370 #define ROP_NAME src_notxor_dst
371 #define ROP_OP(d, s) d = ~((s) ^ (d))
372 #include "cirrus_vga_rop.h"
373
374 #define ROP_NAME src_or_notdst
375 #define ROP_OP(d, s) d = (s) | (~(d))
376 #include "cirrus_vga_rop.h"
377
378 #define ROP_NAME notsrc
379 #define ROP_OP(d, s) d = (~(s))
380 #include "cirrus_vga_rop.h"
381
382 #define ROP_NAME notsrc_or_dst
383 #define ROP_OP(d, s) d = (~(s)) | (d)
384 #include "cirrus_vga_rop.h"
385
386 #define ROP_NAME notsrc_and_notdst
387 #define ROP_OP(d, s) d = (~(s)) & (~(d))
388 #include "cirrus_vga_rop.h"
389
390 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
391 cirrus_bitblt_rop_fwd_0,
392 cirrus_bitblt_rop_fwd_src_and_dst,
393 cirrus_bitblt_rop_nop,
394 cirrus_bitblt_rop_fwd_src_and_notdst,
395 cirrus_bitblt_rop_fwd_notdst,
396 cirrus_bitblt_rop_fwd_src,
397 cirrus_bitblt_rop_fwd_1,
398 cirrus_bitblt_rop_fwd_notsrc_and_dst,
399 cirrus_bitblt_rop_fwd_src_xor_dst,
400 cirrus_bitblt_rop_fwd_src_or_dst,
401 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
402 cirrus_bitblt_rop_fwd_src_notxor_dst,
403 cirrus_bitblt_rop_fwd_src_or_notdst,
404 cirrus_bitblt_rop_fwd_notsrc,
405 cirrus_bitblt_rop_fwd_notsrc_or_dst,
406 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
407 };
408
409 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
410 cirrus_bitblt_rop_bkwd_0,
411 cirrus_bitblt_rop_bkwd_src_and_dst,
412 cirrus_bitblt_rop_nop,
413 cirrus_bitblt_rop_bkwd_src_and_notdst,
414 cirrus_bitblt_rop_bkwd_notdst,
415 cirrus_bitblt_rop_bkwd_src,
416 cirrus_bitblt_rop_bkwd_1,
417 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
418 cirrus_bitblt_rop_bkwd_src_xor_dst,
419 cirrus_bitblt_rop_bkwd_src_or_dst,
420 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
421 cirrus_bitblt_rop_bkwd_src_notxor_dst,
422 cirrus_bitblt_rop_bkwd_src_or_notdst,
423 cirrus_bitblt_rop_bkwd_notsrc,
424 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
425 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
426 };
427
428 #define TRANSP_ROP(name) {\
429 name ## _8,\
430 name ## _16,\
431 }
432 #define TRANSP_NOP(func) {\
433 func,\
434 func,\
435 }
436
437 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
438 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
439 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
440 TRANSP_NOP(cirrus_bitblt_rop_nop),
441 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
442 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
443 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
444 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
445 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
447 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
448 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
449 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
450 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
451 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
452 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
453 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
454 };
455
456 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
457 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
458 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
459 TRANSP_NOP(cirrus_bitblt_rop_nop),
460 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
461 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
462 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
463 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
464 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
465 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
466 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
467 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
468 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
469 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
470 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
471 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
472 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
473 };
474
475 #define ROP2(name) {\
476 name ## _8,\
477 name ## _16,\
478 name ## _24,\
479 name ## _32,\
480 }
481
482 #define ROP_NOP2(func) {\
483 func,\
484 func,\
485 func,\
486 func,\
487 }
488
489 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
490 ROP2(cirrus_patternfill_0),
491 ROP2(cirrus_patternfill_src_and_dst),
492 ROP_NOP2(cirrus_bitblt_rop_nop),
493 ROP2(cirrus_patternfill_src_and_notdst),
494 ROP2(cirrus_patternfill_notdst),
495 ROP2(cirrus_patternfill_src),
496 ROP2(cirrus_patternfill_1),
497 ROP2(cirrus_patternfill_notsrc_and_dst),
498 ROP2(cirrus_patternfill_src_xor_dst),
499 ROP2(cirrus_patternfill_src_or_dst),
500 ROP2(cirrus_patternfill_notsrc_or_notdst),
501 ROP2(cirrus_patternfill_src_notxor_dst),
502 ROP2(cirrus_patternfill_src_or_notdst),
503 ROP2(cirrus_patternfill_notsrc),
504 ROP2(cirrus_patternfill_notsrc_or_dst),
505 ROP2(cirrus_patternfill_notsrc_and_notdst),
506 };
507
508 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
509 ROP2(cirrus_colorexpand_transp_0),
510 ROP2(cirrus_colorexpand_transp_src_and_dst),
511 ROP_NOP2(cirrus_bitblt_rop_nop),
512 ROP2(cirrus_colorexpand_transp_src_and_notdst),
513 ROP2(cirrus_colorexpand_transp_notdst),
514 ROP2(cirrus_colorexpand_transp_src),
515 ROP2(cirrus_colorexpand_transp_1),
516 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
517 ROP2(cirrus_colorexpand_transp_src_xor_dst),
518 ROP2(cirrus_colorexpand_transp_src_or_dst),
519 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
520 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
521 ROP2(cirrus_colorexpand_transp_src_or_notdst),
522 ROP2(cirrus_colorexpand_transp_notsrc),
523 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
524 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
525 };
526
527 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
528 ROP2(cirrus_colorexpand_0),
529 ROP2(cirrus_colorexpand_src_and_dst),
530 ROP_NOP2(cirrus_bitblt_rop_nop),
531 ROP2(cirrus_colorexpand_src_and_notdst),
532 ROP2(cirrus_colorexpand_notdst),
533 ROP2(cirrus_colorexpand_src),
534 ROP2(cirrus_colorexpand_1),
535 ROP2(cirrus_colorexpand_notsrc_and_dst),
536 ROP2(cirrus_colorexpand_src_xor_dst),
537 ROP2(cirrus_colorexpand_src_or_dst),
538 ROP2(cirrus_colorexpand_notsrc_or_notdst),
539 ROP2(cirrus_colorexpand_src_notxor_dst),
540 ROP2(cirrus_colorexpand_src_or_notdst),
541 ROP2(cirrus_colorexpand_notsrc),
542 ROP2(cirrus_colorexpand_notsrc_or_dst),
543 ROP2(cirrus_colorexpand_notsrc_and_notdst),
544 };
545
546 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
547 ROP2(cirrus_colorexpand_pattern_transp_0),
548 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
549 ROP_NOP2(cirrus_bitblt_rop_nop),
550 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
551 ROP2(cirrus_colorexpand_pattern_transp_notdst),
552 ROP2(cirrus_colorexpand_pattern_transp_src),
553 ROP2(cirrus_colorexpand_pattern_transp_1),
554 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
555 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
556 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
557 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
558 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
559 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
560 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
561 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
562 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
563 };
564
565 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
566 ROP2(cirrus_colorexpand_pattern_0),
567 ROP2(cirrus_colorexpand_pattern_src_and_dst),
568 ROP_NOP2(cirrus_bitblt_rop_nop),
569 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
570 ROP2(cirrus_colorexpand_pattern_notdst),
571 ROP2(cirrus_colorexpand_pattern_src),
572 ROP2(cirrus_colorexpand_pattern_1),
573 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
574 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
575 ROP2(cirrus_colorexpand_pattern_src_or_dst),
576 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
577 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
578 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
579 ROP2(cirrus_colorexpand_pattern_notsrc),
580 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
581 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
582 };
583
584 static const cirrus_fill_t cirrus_fill[16][4] = {
585 ROP2(cirrus_fill_0),
586 ROP2(cirrus_fill_src_and_dst),
587 ROP_NOP2(cirrus_bitblt_fill_nop),
588 ROP2(cirrus_fill_src_and_notdst),
589 ROP2(cirrus_fill_notdst),
590 ROP2(cirrus_fill_src),
591 ROP2(cirrus_fill_1),
592 ROP2(cirrus_fill_notsrc_and_dst),
593 ROP2(cirrus_fill_src_xor_dst),
594 ROP2(cirrus_fill_src_or_dst),
595 ROP2(cirrus_fill_notsrc_or_notdst),
596 ROP2(cirrus_fill_src_notxor_dst),
597 ROP2(cirrus_fill_src_or_notdst),
598 ROP2(cirrus_fill_notsrc),
599 ROP2(cirrus_fill_notsrc_or_dst),
600 ROP2(cirrus_fill_notsrc_and_notdst),
601 };
602
603 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
604 {
605 unsigned int color;
606 switch (s->cirrus_blt_pixelwidth) {
607 case 1:
608 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
609 break;
610 case 2:
611 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8);
612 s->cirrus_blt_fgcol = le16_to_cpu(color);
613 break;
614 case 3:
615 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
616 (s->gr[0x11] << 8) | (s->gr[0x13] << 16);
617 break;
618 default:
619 case 4:
620 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8) |
621 (s->gr[0x13] << 16) | (s->gr[0x15] << 24);
622 s->cirrus_blt_fgcol = le32_to_cpu(color);
623 break;
624 }
625 }
626
627 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
628 {
629 unsigned int color;
630 switch (s->cirrus_blt_pixelwidth) {
631 case 1:
632 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
633 break;
634 case 2:
635 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8);
636 s->cirrus_blt_bgcol = le16_to_cpu(color);
637 break;
638 case 3:
639 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
640 (s->gr[0x10] << 8) | (s->gr[0x12] << 16);
641 break;
642 default:
643 case 4:
644 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8) |
645 (s->gr[0x12] << 16) | (s->gr[0x14] << 24);
646 s->cirrus_blt_bgcol = le32_to_cpu(color);
647 break;
648 }
649 }
650
651 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
652 int off_pitch, int bytesperline,
653 int lines)
654 {
655 int y;
656 int off_cur;
657 int off_cur_end;
658
659 for (y = 0; y < lines; y++) {
660 off_cur = off_begin;
661 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
662 off_cur &= TARGET_PAGE_MASK;
663 while (off_cur < off_cur_end) {
664 cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
665 off_cur += TARGET_PAGE_SIZE;
666 }
667 off_begin += off_pitch;
668 }
669 }
670
671 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
672 const uint8_t * src)
673 {
674 uint8_t *dst;
675
676 dst = s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
677
678 if (BLTUNSAFE(s))
679 return 0;
680
681 (*s->cirrus_rop) (s, dst, src,
682 s->cirrus_blt_dstpitch, 0,
683 s->cirrus_blt_width, s->cirrus_blt_height);
684 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
685 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
686 s->cirrus_blt_height);
687 return 1;
688 }
689
690 /* fill */
691
692 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
693 {
694 cirrus_fill_t rop_func;
695
696 if (BLTUNSAFE(s))
697 return 0;
698 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
699 rop_func(s, s->vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
700 s->cirrus_blt_dstpitch,
701 s->cirrus_blt_width, s->cirrus_blt_height);
702 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
703 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
704 s->cirrus_blt_height);
705 cirrus_bitblt_reset(s);
706 return 1;
707 }
708
709 /***************************************
710 *
711 * bitblt (video-to-video)
712 *
713 ***************************************/
714
715 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
716 {
717 return cirrus_bitblt_common_patterncopy(s,
718 s->vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
719 s->cirrus_addr_mask));
720 }
721
722 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
723 {
724 int sx, sy;
725 int dx, dy;
726 int width, height;
727 int depth;
728 int notify = 0;
729
730 depth = s->get_bpp((VGAState *)s) / 8;
731 s->get_resolution((VGAState *)s, &width, &height);
732
733 /* extra x, y */
734 sx = (src % (width * depth)) / depth;
735 sy = (src / (width * depth));
736 dx = (dst % (width *depth)) / depth;
737 dy = (dst / (width * depth));
738
739 /* normalize width */
740 w /= depth;
741
742 /* if we're doing a backward copy, we have to adjust
743 our x/y to be the upper left corner (instead of the lower
744 right corner) */
745 if (s->cirrus_blt_dstpitch < 0) {
746 sx -= (s->cirrus_blt_width / depth) - 1;
747 dx -= (s->cirrus_blt_width / depth) - 1;
748 sy -= s->cirrus_blt_height - 1;
749 dy -= s->cirrus_blt_height - 1;
750 }
751
752 /* are we in the visible portion of memory? */
753 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
754 (sx + w) <= width && (sy + h) <= height &&
755 (dx + w) <= width && (dy + h) <= height) {
756 notify = 1;
757 }
758
759 /* make to sure only copy if it's a plain copy ROP */
760 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
761 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
762 notify = 0;
763
764 /* we have to flush all pending changes so that the copy
765 is generated at the appropriate moment in time */
766 if (notify)
767 vga_hw_update();
768
769 (*s->cirrus_rop) (s, s->vram_ptr +
770 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
771 s->vram_ptr +
772 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
773 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
774 s->cirrus_blt_width, s->cirrus_blt_height);
775
776 if (notify)
777 qemu_console_copy(s->ds,
778 sx, sy, dx, dy,
779 s->cirrus_blt_width / depth,
780 s->cirrus_blt_height);
781
782 /* we don't have to notify the display that this portion has
783 changed since qemu_console_copy implies this */
784
785 if (!notify)
786 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
787 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
788 s->cirrus_blt_height);
789 }
790
791 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
792 {
793 if (BLTUNSAFE(s))
794 return 0;
795
796 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->start_addr,
797 s->cirrus_blt_srcaddr - s->start_addr,
798 s->cirrus_blt_width, s->cirrus_blt_height);
799
800 return 1;
801 }
802
803 /***************************************
804 *
805 * bitblt (cpu-to-video)
806 *
807 ***************************************/
808
809 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
810 {
811 int copy_count;
812 uint8_t *end_ptr;
813
814 if (s->cirrus_srccounter > 0) {
815 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
816 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
817 the_end:
818 s->cirrus_srccounter = 0;
819 cirrus_bitblt_reset(s);
820 } else {
821 /* at least one scan line */
822 do {
823 (*s->cirrus_rop)(s, s->vram_ptr +
824 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
825 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
826 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
827 s->cirrus_blt_width, 1);
828 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
829 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
830 if (s->cirrus_srccounter <= 0)
831 goto the_end;
832 /* more bytes than needed can be transfered because of
833 word alignment, so we keep them for the next line */
834 /* XXX: keep alignment to speed up transfer */
835 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
836 copy_count = s->cirrus_srcptr_end - end_ptr;
837 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
838 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
839 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
840 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
841 }
842 }
843 }
844
845 /***************************************
846 *
847 * bitblt wrapper
848 *
849 ***************************************/
850
851 static void cirrus_bitblt_reset(CirrusVGAState * s)
852 {
853 s->gr[0x31] &=
854 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
855 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
856 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
857 s->cirrus_srccounter = 0;
858 cirrus_update_memory_access(s);
859 }
860
861 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
862 {
863 int w;
864
865 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
866 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
867 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
868
869 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
870 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
871 s->cirrus_blt_srcpitch = 8;
872 } else {
873 /* XXX: check for 24 bpp */
874 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
875 }
876 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
877 } else {
878 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
879 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
880 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
881 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
882 else
883 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
884 } else {
885 /* always align input size to 32 bits */
886 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
887 }
888 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
889 }
890 s->cirrus_srcptr = s->cirrus_bltbuf;
891 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
892 cirrus_update_memory_access(s);
893 return 1;
894 }
895
896 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
897 {
898 /* XXX */
899 #ifdef DEBUG_BITBLT
900 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
901 #endif
902 return 0;
903 }
904
905 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
906 {
907 int ret;
908
909 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
910 ret = cirrus_bitblt_videotovideo_patterncopy(s);
911 } else {
912 ret = cirrus_bitblt_videotovideo_copy(s);
913 }
914 if (ret)
915 cirrus_bitblt_reset(s);
916 return ret;
917 }
918
919 static void cirrus_bitblt_start(CirrusVGAState * s)
920 {
921 uint8_t blt_rop;
922
923 s->gr[0x31] |= CIRRUS_BLT_BUSY;
924
925 s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
926 s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
927 s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
928 s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
929 s->cirrus_blt_dstaddr =
930 (s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
931 s->cirrus_blt_srcaddr =
932 (s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
933 s->cirrus_blt_mode = s->gr[0x30];
934 s->cirrus_blt_modeext = s->gr[0x33];
935 blt_rop = s->gr[0x32];
936
937 #ifdef DEBUG_BITBLT
938 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",
939 blt_rop,
940 s->cirrus_blt_mode,
941 s->cirrus_blt_modeext,
942 s->cirrus_blt_width,
943 s->cirrus_blt_height,
944 s->cirrus_blt_dstpitch,
945 s->cirrus_blt_srcpitch,
946 s->cirrus_blt_dstaddr,
947 s->cirrus_blt_srcaddr,
948 s->gr[0x2f]);
949 #endif
950
951 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
952 case CIRRUS_BLTMODE_PIXELWIDTH8:
953 s->cirrus_blt_pixelwidth = 1;
954 break;
955 case CIRRUS_BLTMODE_PIXELWIDTH16:
956 s->cirrus_blt_pixelwidth = 2;
957 break;
958 case CIRRUS_BLTMODE_PIXELWIDTH24:
959 s->cirrus_blt_pixelwidth = 3;
960 break;
961 case CIRRUS_BLTMODE_PIXELWIDTH32:
962 s->cirrus_blt_pixelwidth = 4;
963 break;
964 default:
965 #ifdef DEBUG_BITBLT
966 printf("cirrus: bitblt - pixel width is unknown\n");
967 #endif
968 goto bitblt_ignore;
969 }
970 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
971
972 if ((s->
973 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
974 CIRRUS_BLTMODE_MEMSYSDEST))
975 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
976 #ifdef DEBUG_BITBLT
977 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
978 #endif
979 goto bitblt_ignore;
980 }
981
982 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
983 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
984 CIRRUS_BLTMODE_TRANSPARENTCOMP |
985 CIRRUS_BLTMODE_PATTERNCOPY |
986 CIRRUS_BLTMODE_COLOREXPAND)) ==
987 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
988 cirrus_bitblt_fgcol(s);
989 cirrus_bitblt_solidfill(s, blt_rop);
990 } else {
991 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
992 CIRRUS_BLTMODE_PATTERNCOPY)) ==
993 CIRRUS_BLTMODE_COLOREXPAND) {
994
995 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
996 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
997 cirrus_bitblt_bgcol(s);
998 else
999 cirrus_bitblt_fgcol(s);
1000 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1001 } else {
1002 cirrus_bitblt_fgcol(s);
1003 cirrus_bitblt_bgcol(s);
1004 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1005 }
1006 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
1007 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
1008 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1009 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
1010 cirrus_bitblt_bgcol(s);
1011 else
1012 cirrus_bitblt_fgcol(s);
1013 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1014 } else {
1015 cirrus_bitblt_fgcol(s);
1016 cirrus_bitblt_bgcol(s);
1017 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1018 }
1019 } else {
1020 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1021 }
1022 } else {
1023 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1024 if (s->cirrus_blt_pixelwidth > 2) {
1025 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1026 goto bitblt_ignore;
1027 }
1028 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1029 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1030 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1031 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1032 } else {
1033 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1034 }
1035 } else {
1036 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1037 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1038 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1039 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1040 } else {
1041 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1042 }
1043 }
1044 }
1045 // setup bitblt engine.
1046 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1047 if (!cirrus_bitblt_cputovideo(s))
1048 goto bitblt_ignore;
1049 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1050 if (!cirrus_bitblt_videotocpu(s))
1051 goto bitblt_ignore;
1052 } else {
1053 if (!cirrus_bitblt_videotovideo(s))
1054 goto bitblt_ignore;
1055 }
1056 }
1057 return;
1058 bitblt_ignore:;
1059 cirrus_bitblt_reset(s);
1060 }
1061
1062 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1063 {
1064 unsigned old_value;
1065
1066 old_value = s->gr[0x31];
1067 s->gr[0x31] = reg_value;
1068
1069 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1070 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1071 cirrus_bitblt_reset(s);
1072 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1073 ((reg_value & CIRRUS_BLT_START) != 0)) {
1074 cirrus_bitblt_start(s);
1075 }
1076 }
1077
1078
1079 /***************************************
1080 *
1081 * basic parameters
1082 *
1083 ***************************************/
1084
1085 static void cirrus_get_offsets(VGAState *s1,
1086 uint32_t *pline_offset,
1087 uint32_t *pstart_addr,
1088 uint32_t *pline_compare)
1089 {
1090 CirrusVGAState * s = (CirrusVGAState *)s1;
1091 uint32_t start_addr, line_offset, line_compare;
1092
1093 line_offset = s->cr[0x13]
1094 | ((s->cr[0x1b] & 0x10) << 4);
1095 line_offset <<= 3;
1096 *pline_offset = line_offset;
1097
1098 start_addr = (s->cr[0x0c] << 8)
1099 | s->cr[0x0d]
1100 | ((s->cr[0x1b] & 0x01) << 16)
1101 | ((s->cr[0x1b] & 0x0c) << 15)
1102 | ((s->cr[0x1d] & 0x80) << 12);
1103 *pstart_addr = start_addr;
1104
1105 line_compare = s->cr[0x18] |
1106 ((s->cr[0x07] & 0x10) << 4) |
1107 ((s->cr[0x09] & 0x40) << 3);
1108 *pline_compare = line_compare;
1109 }
1110
1111 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1112 {
1113 uint32_t ret = 16;
1114
1115 switch (s->cirrus_hidden_dac_data & 0xf) {
1116 case 0:
1117 ret = 15;
1118 break; /* Sierra HiColor */
1119 case 1:
1120 ret = 16;
1121 break; /* XGA HiColor */
1122 default:
1123 #ifdef DEBUG_CIRRUS
1124 printf("cirrus: invalid DAC value %x in 16bpp\n",
1125 (s->cirrus_hidden_dac_data & 0xf));
1126 #endif
1127 ret = 15; /* XXX */
1128 break;
1129 }
1130 return ret;
1131 }
1132
1133 static int cirrus_get_bpp(VGAState *s1)
1134 {
1135 CirrusVGAState * s = (CirrusVGAState *)s1;
1136 uint32_t ret = 8;
1137
1138 if ((s->sr[0x07] & 0x01) != 0) {
1139 /* Cirrus SVGA */
1140 switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1141 case CIRRUS_SR7_BPP_8:
1142 ret = 8;
1143 break;
1144 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1145 ret = cirrus_get_bpp16_depth(s);
1146 break;
1147 case CIRRUS_SR7_BPP_24:
1148 ret = 24;
1149 break;
1150 case CIRRUS_SR7_BPP_16:
1151 ret = cirrus_get_bpp16_depth(s);
1152 break;
1153 case CIRRUS_SR7_BPP_32:
1154 ret = 32;
1155 break;
1156 default:
1157 #ifdef DEBUG_CIRRUS
1158 printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
1159 #endif
1160 ret = 8;
1161 break;
1162 }
1163 } else {
1164 /* VGA */
1165 ret = 0;
1166 }
1167
1168 return ret;
1169 }
1170
1171 static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1172 {
1173 int width, height;
1174
1175 width = (s->cr[0x01] + 1) * 8;
1176 height = s->cr[0x12] |
1177 ((s->cr[0x07] & 0x02) << 7) |
1178 ((s->cr[0x07] & 0x40) << 3);
1179 height = (height + 1);
1180 /* interlace support */
1181 if (s->cr[0x1a] & 0x01)
1182 height = height * 2;
1183 *pwidth = width;
1184 *pheight = height;
1185 }
1186
1187 /***************************************
1188 *
1189 * bank memory
1190 *
1191 ***************************************/
1192
1193 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1194 {
1195 unsigned offset;
1196 unsigned limit;
1197
1198 if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
1199 offset = s->gr[0x09 + bank_index];
1200 else /* single bank */
1201 offset = s->gr[0x09];
1202
1203 if ((s->gr[0x0b] & 0x20) != 0)
1204 offset <<= 14;
1205 else
1206 offset <<= 12;
1207
1208 if (s->real_vram_size <= offset)
1209 limit = 0;
1210 else
1211 limit = s->real_vram_size - offset;
1212
1213 if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1214 if (limit > 0x8000) {
1215 offset += 0x8000;
1216 limit -= 0x8000;
1217 } else {
1218 limit = 0;
1219 }
1220 }
1221
1222 if (limit > 0) {
1223 /* Thinking about changing bank base? First, drop the dirty bitmap information
1224 * on the current location, otherwise we lose this pointer forever */
1225 if (s->lfb_vram_mapped) {
1226 target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000;
1227 cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000);
1228 }
1229 s->cirrus_bank_base[bank_index] = offset;
1230 s->cirrus_bank_limit[bank_index] = limit;
1231 } else {
1232 s->cirrus_bank_base[bank_index] = 0;
1233 s->cirrus_bank_limit[bank_index] = 0;
1234 }
1235 }
1236
1237 /***************************************
1238 *
1239 * I/O access between 0x3c4-0x3c5
1240 *
1241 ***************************************/
1242
1243 static int
1244 cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1245 {
1246 switch (reg_index) {
1247 case 0x00: // Standard VGA
1248 case 0x01: // Standard VGA
1249 case 0x02: // Standard VGA
1250 case 0x03: // Standard VGA
1251 case 0x04: // Standard VGA
1252 return CIRRUS_HOOK_NOT_HANDLED;
1253 case 0x06: // Unlock Cirrus extensions
1254 *reg_value = s->sr[reg_index];
1255 break;
1256 case 0x10:
1257 case 0x30:
1258 case 0x50:
1259 case 0x70: // Graphics Cursor X
1260 case 0x90:
1261 case 0xb0:
1262 case 0xd0:
1263 case 0xf0: // Graphics Cursor X
1264 *reg_value = s->sr[0x10];
1265 break;
1266 case 0x11:
1267 case 0x31:
1268 case 0x51:
1269 case 0x71: // Graphics Cursor Y
1270 case 0x91:
1271 case 0xb1:
1272 case 0xd1:
1273 case 0xf1: // Graphics Cursor Y
1274 *reg_value = s->sr[0x11];
1275 break;
1276 case 0x05: // ???
1277 case 0x07: // Extended Sequencer Mode
1278 case 0x08: // EEPROM Control
1279 case 0x09: // Scratch Register 0
1280 case 0x0a: // Scratch Register 1
1281 case 0x0b: // VCLK 0
1282 case 0x0c: // VCLK 1
1283 case 0x0d: // VCLK 2
1284 case 0x0e: // VCLK 3
1285 case 0x0f: // DRAM Control
1286 case 0x12: // Graphics Cursor Attribute
1287 case 0x13: // Graphics Cursor Pattern Address
1288 case 0x14: // Scratch Register 2
1289 case 0x15: // Scratch Register 3
1290 case 0x16: // Performance Tuning Register
1291 case 0x17: // Configuration Readback and Extended Control
1292 case 0x18: // Signature Generator Control
1293 case 0x19: // Signal Generator Result
1294 case 0x1a: // Signal Generator Result
1295 case 0x1b: // VCLK 0 Denominator & Post
1296 case 0x1c: // VCLK 1 Denominator & Post
1297 case 0x1d: // VCLK 2 Denominator & Post
1298 case 0x1e: // VCLK 3 Denominator & Post
1299 case 0x1f: // BIOS Write Enable and MCLK select
1300 #ifdef DEBUG_CIRRUS
1301 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1302 #endif
1303 *reg_value = s->sr[reg_index];
1304 break;
1305 default:
1306 #ifdef DEBUG_CIRRUS
1307 printf("cirrus: inport sr_index %02x\n", reg_index);
1308 #endif
1309 *reg_value = 0xff;
1310 break;
1311 }
1312
1313 return CIRRUS_HOOK_HANDLED;
1314 }
1315
1316 static int
1317 cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1318 {
1319 switch (reg_index) {
1320 case 0x00: // Standard VGA
1321 case 0x01: // Standard VGA
1322 case 0x02: // Standard VGA
1323 case 0x03: // Standard VGA
1324 case 0x04: // Standard VGA
1325 return CIRRUS_HOOK_NOT_HANDLED;
1326 case 0x06: // Unlock Cirrus extensions
1327 reg_value &= 0x17;
1328 if (reg_value == 0x12) {
1329 s->sr[reg_index] = 0x12;
1330 } else {
1331 s->sr[reg_index] = 0x0f;
1332 }
1333 break;
1334 case 0x10:
1335 case 0x30:
1336 case 0x50:
1337 case 0x70: // Graphics Cursor X
1338 case 0x90:
1339 case 0xb0:
1340 case 0xd0:
1341 case 0xf0: // Graphics Cursor X
1342 s->sr[0x10] = reg_value;
1343 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
1344 break;
1345 case 0x11:
1346 case 0x31:
1347 case 0x51:
1348 case 0x71: // Graphics Cursor Y
1349 case 0x91:
1350 case 0xb1:
1351 case 0xd1:
1352 case 0xf1: // Graphics Cursor Y
1353 s->sr[0x11] = reg_value;
1354 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
1355 break;
1356 case 0x07: // Extended Sequencer Mode
1357 cirrus_update_memory_access(s);
1358 case 0x08: // EEPROM Control
1359 case 0x09: // Scratch Register 0
1360 case 0x0a: // Scratch Register 1
1361 case 0x0b: // VCLK 0
1362 case 0x0c: // VCLK 1
1363 case 0x0d: // VCLK 2
1364 case 0x0e: // VCLK 3
1365 case 0x0f: // DRAM Control
1366 case 0x12: // Graphics Cursor Attribute
1367 case 0x13: // Graphics Cursor Pattern Address
1368 case 0x14: // Scratch Register 2
1369 case 0x15: // Scratch Register 3
1370 case 0x16: // Performance Tuning Register
1371 case 0x18: // Signature Generator Control
1372 case 0x19: // Signature Generator Result
1373 case 0x1a: // Signature Generator Result
1374 case 0x1b: // VCLK 0 Denominator & Post
1375 case 0x1c: // VCLK 1 Denominator & Post
1376 case 0x1d: // VCLK 2 Denominator & Post
1377 case 0x1e: // VCLK 3 Denominator & Post
1378 case 0x1f: // BIOS Write Enable and MCLK select
1379 s->sr[reg_index] = reg_value;
1380 #ifdef DEBUG_CIRRUS
1381 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1382 reg_index, reg_value);
1383 #endif
1384 break;
1385 case 0x17: // Configuration Readback and Extended Control
1386 s->sr[reg_index] = (s->sr[reg_index] & 0x38) | (reg_value & 0xc7);
1387 cirrus_update_memory_access(s);
1388 break;
1389 default:
1390 #ifdef DEBUG_CIRRUS
1391 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1392 reg_value);
1393 #endif
1394 break;
1395 }
1396
1397 return CIRRUS_HOOK_HANDLED;
1398 }
1399
1400 /***************************************
1401 *
1402 * I/O access at 0x3c6
1403 *
1404 ***************************************/
1405
1406 static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1407 {
1408 *reg_value = 0xff;
1409 if (++s->cirrus_hidden_dac_lockindex == 5) {
1410 *reg_value = s->cirrus_hidden_dac_data;
1411 s->cirrus_hidden_dac_lockindex = 0;
1412 }
1413 }
1414
1415 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1416 {
1417 if (s->cirrus_hidden_dac_lockindex == 4) {
1418 s->cirrus_hidden_dac_data = reg_value;
1419 #if defined(DEBUG_CIRRUS)
1420 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1421 #endif
1422 }
1423 s->cirrus_hidden_dac_lockindex = 0;
1424 }
1425
1426 /***************************************
1427 *
1428 * I/O access at 0x3c9
1429 *
1430 ***************************************/
1431
1432 static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1433 {
1434 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1435 return CIRRUS_HOOK_NOT_HANDLED;
1436 *reg_value =
1437 s->cirrus_hidden_palette[(s->dac_read_index & 0x0f) * 3 +
1438 s->dac_sub_index];
1439 if (++s->dac_sub_index == 3) {
1440 s->dac_sub_index = 0;
1441 s->dac_read_index++;
1442 }
1443 return CIRRUS_HOOK_HANDLED;
1444 }
1445
1446 static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1447 {
1448 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1449 return CIRRUS_HOOK_NOT_HANDLED;
1450 s->dac_cache[s->dac_sub_index] = reg_value;
1451 if (++s->dac_sub_index == 3) {
1452 memcpy(&s->cirrus_hidden_palette[(s->dac_write_index & 0x0f) * 3],
1453 s->dac_cache, 3);
1454 /* XXX update cursor */
1455 s->dac_sub_index = 0;
1456 s->dac_write_index++;
1457 }
1458 return CIRRUS_HOOK_HANDLED;
1459 }
1460
1461 /***************************************
1462 *
1463 * I/O access between 0x3ce-0x3cf
1464 *
1465 ***************************************/
1466
1467 static int
1468 cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1469 {
1470 switch (reg_index) {
1471 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1472 *reg_value = s->cirrus_shadow_gr0;
1473 return CIRRUS_HOOK_HANDLED;
1474 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1475 *reg_value = s->cirrus_shadow_gr1;
1476 return CIRRUS_HOOK_HANDLED;
1477 case 0x02: // Standard VGA
1478 case 0x03: // Standard VGA
1479 case 0x04: // Standard VGA
1480 case 0x06: // Standard VGA
1481 case 0x07: // Standard VGA
1482 case 0x08: // Standard VGA
1483 return CIRRUS_HOOK_NOT_HANDLED;
1484 case 0x05: // Standard VGA, Cirrus extended mode
1485 default:
1486 break;
1487 }
1488
1489 if (reg_index < 0x3a) {
1490 *reg_value = s->gr[reg_index];
1491 } else {
1492 #ifdef DEBUG_CIRRUS
1493 printf("cirrus: inport gr_index %02x\n", reg_index);
1494 #endif
1495 *reg_value = 0xff;
1496 }
1497
1498 return CIRRUS_HOOK_HANDLED;
1499 }
1500
1501 static int
1502 cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1503 {
1504 #if defined(DEBUG_BITBLT) && 0
1505 printf("gr%02x: %02x\n", reg_index, reg_value);
1506 #endif
1507 switch (reg_index) {
1508 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1509 s->cirrus_shadow_gr0 = reg_value;
1510 return CIRRUS_HOOK_NOT_HANDLED;
1511 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1512 s->cirrus_shadow_gr1 = reg_value;
1513 return CIRRUS_HOOK_NOT_HANDLED;
1514 case 0x02: // Standard VGA
1515 case 0x03: // Standard VGA
1516 case 0x04: // Standard VGA
1517 case 0x06: // Standard VGA
1518 case 0x07: // Standard VGA
1519 case 0x08: // Standard VGA
1520 return CIRRUS_HOOK_NOT_HANDLED;
1521 case 0x05: // Standard VGA, Cirrus extended mode
1522 s->gr[reg_index] = reg_value & 0x7f;
1523 cirrus_update_memory_access(s);
1524 break;
1525 case 0x09: // bank offset #0
1526 case 0x0A: // bank offset #1
1527 s->gr[reg_index] = reg_value;
1528 cirrus_update_bank_ptr(s, 0);
1529 cirrus_update_bank_ptr(s, 1);
1530 cirrus_update_memory_access(s);
1531 break;
1532 case 0x0B:
1533 s->gr[reg_index] = reg_value;
1534 cirrus_update_bank_ptr(s, 0);
1535 cirrus_update_bank_ptr(s, 1);
1536 cirrus_update_memory_access(s);
1537 break;
1538 case 0x10: // BGCOLOR 0x0000ff00
1539 case 0x11: // FGCOLOR 0x0000ff00
1540 case 0x12: // BGCOLOR 0x00ff0000
1541 case 0x13: // FGCOLOR 0x00ff0000
1542 case 0x14: // BGCOLOR 0xff000000
1543 case 0x15: // FGCOLOR 0xff000000
1544 case 0x20: // BLT WIDTH 0x0000ff
1545 case 0x22: // BLT HEIGHT 0x0000ff
1546 case 0x24: // BLT DEST PITCH 0x0000ff
1547 case 0x26: // BLT SRC PITCH 0x0000ff
1548 case 0x28: // BLT DEST ADDR 0x0000ff
1549 case 0x29: // BLT DEST ADDR 0x00ff00
1550 case 0x2c: // BLT SRC ADDR 0x0000ff
1551 case 0x2d: // BLT SRC ADDR 0x00ff00
1552 case 0x2f: // BLT WRITEMASK
1553 case 0x30: // BLT MODE
1554 case 0x32: // RASTER OP
1555 case 0x33: // BLT MODEEXT
1556 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1557 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1558 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1559 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1560 s->gr[reg_index] = reg_value;
1561 break;
1562 case 0x21: // BLT WIDTH 0x001f00
1563 case 0x23: // BLT HEIGHT 0x001f00
1564 case 0x25: // BLT DEST PITCH 0x001f00
1565 case 0x27: // BLT SRC PITCH 0x001f00
1566 s->gr[reg_index] = reg_value & 0x1f;
1567 break;
1568 case 0x2a: // BLT DEST ADDR 0x3f0000
1569 s->gr[reg_index] = reg_value & 0x3f;
1570 /* if auto start mode, starts bit blt now */
1571 if (s->gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1572 cirrus_bitblt_start(s);
1573 }
1574 break;
1575 case 0x2e: // BLT SRC ADDR 0x3f0000
1576 s->gr[reg_index] = reg_value & 0x3f;
1577 break;
1578 case 0x31: // BLT STATUS/START
1579 cirrus_write_bitblt(s, reg_value);
1580 break;
1581 default:
1582 #ifdef DEBUG_CIRRUS
1583 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1584 reg_value);
1585 #endif
1586 break;
1587 }
1588
1589 return CIRRUS_HOOK_HANDLED;
1590 }
1591
1592 /***************************************
1593 *
1594 * I/O access between 0x3d4-0x3d5
1595 *
1596 ***************************************/
1597
1598 static int
1599 cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1600 {
1601 switch (reg_index) {
1602 case 0x00: // Standard VGA
1603 case 0x01: // Standard VGA
1604 case 0x02: // Standard VGA
1605 case 0x03: // Standard VGA
1606 case 0x04: // Standard VGA
1607 case 0x05: // Standard VGA
1608 case 0x06: // Standard VGA
1609 case 0x07: // Standard VGA
1610 case 0x08: // Standard VGA
1611 case 0x09: // Standard VGA
1612 case 0x0a: // Standard VGA
1613 case 0x0b: // Standard VGA
1614 case 0x0c: // Standard VGA
1615 case 0x0d: // Standard VGA
1616 case 0x0e: // Standard VGA
1617 case 0x0f: // Standard VGA
1618 case 0x10: // Standard VGA
1619 case 0x11: // Standard VGA
1620 case 0x12: // Standard VGA
1621 case 0x13: // Standard VGA
1622 case 0x14: // Standard VGA
1623 case 0x15: // Standard VGA
1624 case 0x16: // Standard VGA
1625 case 0x17: // Standard VGA
1626 case 0x18: // Standard VGA
1627 return CIRRUS_HOOK_NOT_HANDLED;
1628 case 0x24: // Attribute Controller Toggle Readback (R)
1629 *reg_value = (s->ar_flip_flop << 7);
1630 break;
1631 case 0x19: // Interlace End
1632 case 0x1a: // Miscellaneous Control
1633 case 0x1b: // Extended Display Control
1634 case 0x1c: // Sync Adjust and Genlock
1635 case 0x1d: // Overlay Extended Control
1636 case 0x22: // Graphics Data Latches Readback (R)
1637 case 0x25: // Part Status
1638 case 0x27: // Part ID (R)
1639 *reg_value = s->cr[reg_index];
1640 break;
1641 case 0x26: // Attribute Controller Index Readback (R)
1642 *reg_value = s->ar_index & 0x3f;
1643 break;
1644 default:
1645 #ifdef DEBUG_CIRRUS
1646 printf("cirrus: inport cr_index %02x\n", reg_index);
1647 *reg_value = 0xff;
1648 #endif
1649 break;
1650 }
1651
1652 return CIRRUS_HOOK_HANDLED;
1653 }
1654
1655 static int
1656 cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1657 {
1658 switch (reg_index) {
1659 case 0x00: // Standard VGA
1660 case 0x01: // Standard VGA
1661 case 0x02: // Standard VGA
1662 case 0x03: // Standard VGA
1663 case 0x04: // Standard VGA
1664 case 0x05: // Standard VGA
1665 case 0x06: // Standard VGA
1666 case 0x07: // Standard VGA
1667 case 0x08: // Standard VGA
1668 case 0x09: // Standard VGA
1669 case 0x0a: // Standard VGA
1670 case 0x0b: // Standard VGA
1671 case 0x0c: // Standard VGA
1672 case 0x0d: // Standard VGA
1673 case 0x0e: // Standard VGA
1674 case 0x0f: // Standard VGA
1675 case 0x10: // Standard VGA
1676 case 0x11: // Standard VGA
1677 case 0x12: // Standard VGA
1678 case 0x13: // Standard VGA
1679 case 0x14: // Standard VGA
1680 case 0x15: // Standard VGA
1681 case 0x16: // Standard VGA
1682 case 0x17: // Standard VGA
1683 case 0x18: // Standard VGA
1684 return CIRRUS_HOOK_NOT_HANDLED;
1685 case 0x19: // Interlace End
1686 case 0x1a: // Miscellaneous Control
1687 case 0x1b: // Extended Display Control
1688 case 0x1c: // Sync Adjust and Genlock
1689 case 0x1d: // Overlay Extended Control
1690 s->cr[reg_index] = reg_value;
1691 #ifdef DEBUG_CIRRUS
1692 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1693 reg_index, reg_value);
1694 #endif
1695 break;
1696 case 0x22: // Graphics Data Latches Readback (R)
1697 case 0x24: // Attribute Controller Toggle Readback (R)
1698 case 0x26: // Attribute Controller Index Readback (R)
1699 case 0x27: // Part ID (R)
1700 break;
1701 case 0x25: // Part Status
1702 default:
1703 #ifdef DEBUG_CIRRUS
1704 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1705 reg_value);
1706 #endif
1707 break;
1708 }
1709
1710 return CIRRUS_HOOK_HANDLED;
1711 }
1712
1713 /***************************************
1714 *
1715 * memory-mapped I/O (bitblt)
1716 *
1717 ***************************************/
1718
1719 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1720 {
1721 int value = 0xff;
1722
1723 switch (address) {
1724 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1725 cirrus_hook_read_gr(s, 0x00, &value);
1726 break;
1727 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1728 cirrus_hook_read_gr(s, 0x10, &value);
1729 break;
1730 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1731 cirrus_hook_read_gr(s, 0x12, &value);
1732 break;
1733 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1734 cirrus_hook_read_gr(s, 0x14, &value);
1735 break;
1736 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1737 cirrus_hook_read_gr(s, 0x01, &value);
1738 break;
1739 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1740 cirrus_hook_read_gr(s, 0x11, &value);
1741 break;
1742 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1743 cirrus_hook_read_gr(s, 0x13, &value);
1744 break;
1745 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1746 cirrus_hook_read_gr(s, 0x15, &value);
1747 break;
1748 case (CIRRUS_MMIO_BLTWIDTH + 0):
1749 cirrus_hook_read_gr(s, 0x20, &value);
1750 break;
1751 case (CIRRUS_MMIO_BLTWIDTH + 1):
1752 cirrus_hook_read_gr(s, 0x21, &value);
1753 break;
1754 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1755 cirrus_hook_read_gr(s, 0x22, &value);
1756 break;
1757 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1758 cirrus_hook_read_gr(s, 0x23, &value);
1759 break;
1760 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1761 cirrus_hook_read_gr(s, 0x24, &value);
1762 break;
1763 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1764 cirrus_hook_read_gr(s, 0x25, &value);
1765 break;
1766 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1767 cirrus_hook_read_gr(s, 0x26, &value);
1768 break;
1769 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1770 cirrus_hook_read_gr(s, 0x27, &value);
1771 break;
1772 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1773 cirrus_hook_read_gr(s, 0x28, &value);
1774 break;
1775 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1776 cirrus_hook_read_gr(s, 0x29, &value);
1777 break;
1778 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1779 cirrus_hook_read_gr(s, 0x2a, &value);
1780 break;
1781 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1782 cirrus_hook_read_gr(s, 0x2c, &value);
1783 break;
1784 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1785 cirrus_hook_read_gr(s, 0x2d, &value);
1786 break;
1787 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1788 cirrus_hook_read_gr(s, 0x2e, &value);
1789 break;
1790 case CIRRUS_MMIO_BLTWRITEMASK:
1791 cirrus_hook_read_gr(s, 0x2f, &value);
1792 break;
1793 case CIRRUS_MMIO_BLTMODE:
1794 cirrus_hook_read_gr(s, 0x30, &value);
1795 break;
1796 case CIRRUS_MMIO_BLTROP:
1797 cirrus_hook_read_gr(s, 0x32, &value);
1798 break;
1799 case CIRRUS_MMIO_BLTMODEEXT:
1800 cirrus_hook_read_gr(s, 0x33, &value);
1801 break;
1802 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1803 cirrus_hook_read_gr(s, 0x34, &value);
1804 break;
1805 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1806 cirrus_hook_read_gr(s, 0x35, &value);
1807 break;
1808 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1809 cirrus_hook_read_gr(s, 0x38, &value);
1810 break;
1811 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1812 cirrus_hook_read_gr(s, 0x39, &value);
1813 break;
1814 case CIRRUS_MMIO_BLTSTATUS:
1815 cirrus_hook_read_gr(s, 0x31, &value);
1816 break;
1817 default:
1818 #ifdef DEBUG_CIRRUS
1819 printf("cirrus: mmio read - address 0x%04x\n", address);
1820 #endif
1821 break;
1822 }
1823
1824 return (uint8_t) value;
1825 }
1826
1827 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1828 uint8_t value)
1829 {
1830 switch (address) {
1831 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1832 cirrus_hook_write_gr(s, 0x00, value);
1833 break;
1834 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1835 cirrus_hook_write_gr(s, 0x10, value);
1836 break;
1837 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1838 cirrus_hook_write_gr(s, 0x12, value);
1839 break;
1840 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1841 cirrus_hook_write_gr(s, 0x14, value);
1842 break;
1843 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1844 cirrus_hook_write_gr(s, 0x01, value);
1845 break;
1846 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1847 cirrus_hook_write_gr(s, 0x11, value);
1848 break;
1849 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1850 cirrus_hook_write_gr(s, 0x13, value);
1851 break;
1852 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1853 cirrus_hook_write_gr(s, 0x15, value);
1854 break;
1855 case (CIRRUS_MMIO_BLTWIDTH + 0):
1856 cirrus_hook_write_gr(s, 0x20, value);
1857 break;
1858 case (CIRRUS_MMIO_BLTWIDTH + 1):
1859 cirrus_hook_write_gr(s, 0x21, value);
1860 break;
1861 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1862 cirrus_hook_write_gr(s, 0x22, value);
1863 break;
1864 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1865 cirrus_hook_write_gr(s, 0x23, value);
1866 break;
1867 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1868 cirrus_hook_write_gr(s, 0x24, value);
1869 break;
1870 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1871 cirrus_hook_write_gr(s, 0x25, value);
1872 break;
1873 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1874 cirrus_hook_write_gr(s, 0x26, value);
1875 break;
1876 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1877 cirrus_hook_write_gr(s, 0x27, value);
1878 break;
1879 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1880 cirrus_hook_write_gr(s, 0x28, value);
1881 break;
1882 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1883 cirrus_hook_write_gr(s, 0x29, value);
1884 break;
1885 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1886 cirrus_hook_write_gr(s, 0x2a, value);
1887 break;
1888 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1889 /* ignored */
1890 break;
1891 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1892 cirrus_hook_write_gr(s, 0x2c, value);
1893 break;
1894 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1895 cirrus_hook_write_gr(s, 0x2d, value);
1896 break;
1897 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1898 cirrus_hook_write_gr(s, 0x2e, value);
1899 break;
1900 case CIRRUS_MMIO_BLTWRITEMASK:
1901 cirrus_hook_write_gr(s, 0x2f, value);
1902 break;
1903 case CIRRUS_MMIO_BLTMODE:
1904 cirrus_hook_write_gr(s, 0x30, value);
1905 break;
1906 case CIRRUS_MMIO_BLTROP:
1907 cirrus_hook_write_gr(s, 0x32, value);
1908 break;
1909 case CIRRUS_MMIO_BLTMODEEXT:
1910 cirrus_hook_write_gr(s, 0x33, value);
1911 break;
1912 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1913 cirrus_hook_write_gr(s, 0x34, value);
1914 break;
1915 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1916 cirrus_hook_write_gr(s, 0x35, value);
1917 break;
1918 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1919 cirrus_hook_write_gr(s, 0x38, value);
1920 break;
1921 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1922 cirrus_hook_write_gr(s, 0x39, value);
1923 break;
1924 case CIRRUS_MMIO_BLTSTATUS:
1925 cirrus_hook_write_gr(s, 0x31, value);
1926 break;
1927 default:
1928 #ifdef DEBUG_CIRRUS
1929 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1930 address, value);
1931 #endif
1932 break;
1933 }
1934 }
1935
1936 /***************************************
1937 *
1938 * write mode 4/5
1939 *
1940 * assume TARGET_PAGE_SIZE >= 16
1941 *
1942 ***************************************/
1943
1944 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1945 unsigned mode,
1946 unsigned offset,
1947 uint32_t mem_value)
1948 {
1949 int x;
1950 unsigned val = mem_value;
1951 uint8_t *dst;
1952
1953 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1954 for (x = 0; x < 8; x++) {
1955 if (val & 0x80) {
1956 *dst = s->cirrus_shadow_gr1;
1957 } else if (mode == 5) {
1958 *dst = s->cirrus_shadow_gr0;
1959 }
1960 val <<= 1;
1961 dst++;
1962 }
1963 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1964 cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
1965 }
1966
1967 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1968 unsigned mode,
1969 unsigned offset,
1970 uint32_t mem_value)
1971 {
1972 int x;
1973 unsigned val = mem_value;
1974 uint8_t *dst;
1975
1976 dst = s->vram_ptr + (offset &= s->cirrus_addr_mask);
1977 for (x = 0; x < 8; x++) {
1978 if (val & 0x80) {
1979 *dst = s->cirrus_shadow_gr1;
1980 *(dst + 1) = s->gr[0x11];
1981 } else if (mode == 5) {
1982 *dst = s->cirrus_shadow_gr0;
1983 *(dst + 1) = s->gr[0x10];
1984 }
1985 val <<= 1;
1986 dst += 2;
1987 }
1988 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1989 cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
1990 }
1991
1992 /***************************************
1993 *
1994 * memory access between 0xa0000-0xbffff
1995 *
1996 ***************************************/
1997
1998 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1999 {
2000 CirrusVGAState *s = opaque;
2001 unsigned bank_index;
2002 unsigned bank_offset;
2003 uint32_t val;
2004
2005 if ((s->sr[0x07] & 0x01) == 0) {
2006 return vga_mem_readb(s, addr);
2007 }
2008
2009 addr &= 0x1ffff;
2010
2011 if (addr < 0x10000) {
2012 /* XXX handle bitblt */
2013 /* video memory */
2014 bank_index = addr >> 15;
2015 bank_offset = addr & 0x7fff;
2016 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2017 bank_offset += s->cirrus_bank_base[bank_index];
2018 if ((s->gr[0x0B] & 0x14) == 0x14) {
2019 bank_offset <<= 4;
2020 } else if (s->gr[0x0B] & 0x02) {
2021 bank_offset <<= 3;
2022 }
2023 bank_offset &= s->cirrus_addr_mask;
2024 val = *(s->vram_ptr + bank_offset);
2025 } else
2026 val = 0xff;
2027 } else if (addr >= 0x18000 && addr < 0x18100) {
2028 /* memory-mapped I/O */
2029 val = 0xff;
2030 if ((s->sr[0x17] & 0x44) == 0x04) {
2031 val = cirrus_mmio_blt_read(s, addr & 0xff);
2032 }
2033 } else {
2034 val = 0xff;
2035 #ifdef DEBUG_CIRRUS
2036 printf("cirrus: mem_readb %06x\n", addr);
2037 #endif
2038 }
2039 return val;
2040 }
2041
2042 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2043 {
2044 uint32_t v;
2045 #ifdef TARGET_WORDS_BIGENDIAN
2046 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2047 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2048 #else
2049 v = cirrus_vga_mem_readb(opaque, addr);
2050 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2051 #endif
2052 return v;
2053 }
2054
2055 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2056 {
2057 uint32_t v;
2058 #ifdef TARGET_WORDS_BIGENDIAN
2059 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2060 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2061 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2062 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2063 #else
2064 v = cirrus_vga_mem_readb(opaque, addr);
2065 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2066 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2067 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2068 #endif
2069 return v;
2070 }
2071
2072 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2073 uint32_t mem_value)
2074 {
2075 CirrusVGAState *s = opaque;
2076 unsigned bank_index;
2077 unsigned bank_offset;
2078 unsigned mode;
2079
2080 if ((s->sr[0x07] & 0x01) == 0) {
2081 vga_mem_writeb(s, addr, mem_value);
2082 return;
2083 }
2084
2085 addr &= 0x1ffff;
2086
2087 if (addr < 0x10000) {
2088 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2089 /* bitblt */
2090 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2091 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2092 cirrus_bitblt_cputovideo_next(s);
2093 }
2094 } else {
2095 /* video memory */
2096 bank_index = addr >> 15;
2097 bank_offset = addr & 0x7fff;
2098 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2099 bank_offset += s->cirrus_bank_base[bank_index];
2100 if ((s->gr[0x0B] & 0x14) == 0x14) {
2101 bank_offset <<= 4;
2102 } else if (s->gr[0x0B] & 0x02) {
2103 bank_offset <<= 3;
2104 }
2105 bank_offset &= s->cirrus_addr_mask;
2106 mode = s->gr[0x05] & 0x7;
2107 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2108 *(s->vram_ptr + bank_offset) = mem_value;
2109 cpu_physical_memory_set_dirty(s->vram_offset +
2110 bank_offset);
2111 } else {
2112 if ((s->gr[0x0B] & 0x14) != 0x14) {
2113 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2114 bank_offset,
2115 mem_value);
2116 } else {
2117 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2118 bank_offset,
2119 mem_value);
2120 }
2121 }
2122 }
2123 }
2124 } else if (addr >= 0x18000 && addr < 0x18100) {
2125 /* memory-mapped I/O */
2126 if ((s->sr[0x17] & 0x44) == 0x04) {
2127 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2128 }
2129 } else {
2130 #ifdef DEBUG_CIRRUS
2131 printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
2132 #endif
2133 }
2134 }
2135
2136 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2137 {
2138 #ifdef TARGET_WORDS_BIGENDIAN
2139 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2140 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2141 #else
2142 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2143 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2144 #endif
2145 }
2146
2147 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2148 {
2149 #ifdef TARGET_WORDS_BIGENDIAN
2150 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2151 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2152 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2153 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2154 #else
2155 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2156 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2157 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2158 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2159 #endif
2160 }
2161
2162 static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
2163 cirrus_vga_mem_readb,
2164 cirrus_vga_mem_readw,
2165 cirrus_vga_mem_readl,
2166 };
2167
2168 static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
2169 cirrus_vga_mem_writeb,
2170 cirrus_vga_mem_writew,
2171 cirrus_vga_mem_writel,
2172 };
2173
2174 /***************************************
2175 *
2176 * hardware cursor
2177 *
2178 ***************************************/
2179
2180 static inline void invalidate_cursor1(CirrusVGAState *s)
2181 {
2182 if (s->last_hw_cursor_size) {
2183 vga_invalidate_scanlines((VGAState *)s,
2184 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2185 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2186 }
2187 }
2188
2189 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2190 {
2191 const uint8_t *src;
2192 uint32_t content;
2193 int y, y_min, y_max;
2194
2195 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2196 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2197 src += (s->sr[0x13] & 0x3c) * 256;
2198 y_min = 64;
2199 y_max = -1;
2200 for(y = 0; y < 64; y++) {
2201 content = ((uint32_t *)src)[0] |
2202 ((uint32_t *)src)[1] |
2203 ((uint32_t *)src)[2] |
2204 ((uint32_t *)src)[3];
2205 if (content) {
2206 if (y < y_min)
2207 y_min = y;
2208 if (y > y_max)
2209 y_max = y;
2210 }
2211 src += 16;
2212 }
2213 } else {
2214 src += (s->sr[0x13] & 0x3f) * 256;
2215 y_min = 32;
2216 y_max = -1;
2217 for(y = 0; y < 32; y++) {
2218 content = ((uint32_t *)src)[0] |
2219 ((uint32_t *)(src + 128))[0];
2220 if (content) {
2221 if (y < y_min)
2222 y_min = y;
2223 if (y > y_max)
2224 y_max = y;
2225 }
2226 src += 4;
2227 }
2228 }
2229 if (y_min > y_max) {
2230 s->last_hw_cursor_y_start = 0;
2231 s->last_hw_cursor_y_end = 0;
2232 } else {
2233 s->last_hw_cursor_y_start = y_min;
2234 s->last_hw_cursor_y_end = y_max + 1;
2235 }
2236 }
2237
2238 /* NOTE: we do not currently handle the cursor bitmap change, so we
2239 update the cursor only if it moves. */
2240 static void cirrus_cursor_invalidate(VGAState *s1)
2241 {
2242 CirrusVGAState *s = (CirrusVGAState *)s1;
2243 int size;
2244
2245 if (!s->sr[0x12] & CIRRUS_CURSOR_SHOW) {
2246 size = 0;
2247 } else {
2248 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE)
2249 size = 64;
2250 else
2251 size = 32;
2252 }
2253 /* invalidate last cursor and new cursor if any change */
2254 if (s->last_hw_cursor_size != size ||
2255 s->last_hw_cursor_x != s->hw_cursor_x ||
2256 s->last_hw_cursor_y != s->hw_cursor_y) {
2257
2258 invalidate_cursor1(s);
2259
2260 s->last_hw_cursor_size = size;
2261 s->last_hw_cursor_x = s->hw_cursor_x;
2262 s->last_hw_cursor_y = s->hw_cursor_y;
2263 /* compute the real cursor min and max y */
2264 cirrus_cursor_compute_yrange(s);
2265 invalidate_cursor1(s);
2266 }
2267 }
2268
2269 static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2270 {
2271 CirrusVGAState *s = (CirrusVGAState *)s1;
2272 int w, h, bpp, x1, x2, poffset;
2273 unsigned int color0, color1;
2274 const uint8_t *palette, *src;
2275 uint32_t content;
2276
2277 if (!(s->sr[0x12] & CIRRUS_CURSOR_SHOW))
2278 return;
2279 /* fast test to see if the cursor intersects with the scan line */
2280 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2281 h = 64;
2282 } else {
2283 h = 32;
2284 }
2285 if (scr_y < s->hw_cursor_y ||
2286 scr_y >= (s->hw_cursor_y + h))
2287 return;
2288
2289 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2290 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2291 src += (s->sr[0x13] & 0x3c) * 256;
2292 src += (scr_y - s->hw_cursor_y) * 16;
2293 poffset = 8;
2294 content = ((uint32_t *)src)[0] |
2295 ((uint32_t *)src)[1] |
2296 ((uint32_t *)src)[2] |
2297 ((uint32_t *)src)[3];
2298 } else {
2299 src += (s->sr[0x13] & 0x3f) * 256;
2300 src += (scr_y - s->hw_cursor_y) * 4;
2301 poffset = 128;
2302 content = ((uint32_t *)src)[0] |
2303 ((uint32_t *)(src + 128))[0];
2304 }
2305 /* if nothing to draw, no need to continue */
2306 if (!content)
2307 return;
2308 w = h;
2309
2310 x1 = s->hw_cursor_x;
2311 if (x1 >= s->last_scr_width)
2312 return;
2313 x2 = s->hw_cursor_x + w;
2314 if (x2 > s->last_scr_width)
2315 x2 = s->last_scr_width;
2316 w = x2 - x1;
2317 palette = s->cirrus_hidden_palette;
2318 color0 = s->rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2319 c6_to_8(palette[0x0 * 3 + 1]),
2320 c6_to_8(palette[0x0 * 3 + 2]));
2321 color1 = s->rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2322 c6_to_8(palette[0xf * 3 + 1]),
2323 c6_to_8(palette[0xf * 3 + 2]));
2324 bpp = ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);
2325 d1 += x1 * bpp;
2326 switch(ds_get_bits_per_pixel(s->ds)) {
2327 default:
2328 break;
2329 case 8:
2330 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2331 break;
2332 case 15:
2333 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2334 break;
2335 case 16:
2336 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2337 break;
2338 case 32:
2339 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2340 break;
2341 }
2342 }
2343
2344 /***************************************
2345 *
2346 * LFB memory access
2347 *
2348 ***************************************/
2349
2350 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2351 {
2352 CirrusVGAState *s = (CirrusVGAState *) opaque;
2353 uint32_t ret;
2354
2355 addr &= s->cirrus_addr_mask;
2356
2357 if (((s->sr[0x17] & 0x44) == 0x44) &&
2358 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2359 /* memory-mapped I/O */
2360 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2361 } else if (0) {
2362 /* XXX handle bitblt */
2363 ret = 0xff;
2364 } else {
2365 /* video memory */
2366 if ((s->gr[0x0B] & 0x14) == 0x14) {
2367 addr <<= 4;
2368 } else if (s->gr[0x0B] & 0x02) {
2369 addr <<= 3;
2370 }
2371 addr &= s->cirrus_addr_mask;
2372 ret = *(s->vram_ptr + addr);
2373 }
2374
2375 return ret;
2376 }
2377
2378 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2379 {
2380 uint32_t v;
2381 #ifdef TARGET_WORDS_BIGENDIAN
2382 v = cirrus_linear_readb(opaque, addr) << 8;
2383 v |= cirrus_linear_readb(opaque, addr + 1);
2384 #else
2385 v = cirrus_linear_readb(opaque, addr);
2386 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2387 #endif
2388 return v;
2389 }
2390
2391 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2392 {
2393 uint32_t v;
2394 #ifdef TARGET_WORDS_BIGENDIAN
2395 v = cirrus_linear_readb(opaque, addr) << 24;
2396 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2397 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2398 v |= cirrus_linear_readb(opaque, addr + 3);
2399 #else
2400 v = cirrus_linear_readb(opaque, addr);
2401 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2402 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2403 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2404 #endif
2405 return v;
2406 }
2407
2408 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2409 uint32_t val)
2410 {
2411 CirrusVGAState *s = (CirrusVGAState *) opaque;
2412 unsigned mode;
2413
2414 addr &= s->cirrus_addr_mask;
2415
2416 if (((s->sr[0x17] & 0x44) == 0x44) &&
2417 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2418 /* memory-mapped I/O */
2419 cirrus_mmio_blt_write(s, addr & 0xff, val);
2420 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2421 /* bitblt */
2422 *s->cirrus_srcptr++ = (uint8_t) val;
2423 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2424 cirrus_bitblt_cputovideo_next(s);
2425 }
2426 } else {
2427 /* video memory */
2428 if ((s->gr[0x0B] & 0x14) == 0x14) {
2429 addr <<= 4;
2430 } else if (s->gr[0x0B] & 0x02) {
2431 addr <<= 3;
2432 }
2433 addr &= s->cirrus_addr_mask;
2434
2435 mode = s->gr[0x05] & 0x7;
2436 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2437 *(s->vram_ptr + addr) = (uint8_t) val;
2438 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2439 } else {
2440 if ((s->gr[0x0B] & 0x14) != 0x14) {
2441 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2442 } else {
2443 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2444 }
2445 }
2446 }
2447 }
2448
2449 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2450 uint32_t val)
2451 {
2452 #ifdef TARGET_WORDS_BIGENDIAN
2453 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2454 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2455 #else
2456 cirrus_linear_writeb(opaque, addr, val & 0xff);
2457 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2458 #endif
2459 }
2460
2461 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2462 uint32_t val)
2463 {
2464 #ifdef TARGET_WORDS_BIGENDIAN
2465 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2466 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2467 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2468 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2469 #else
2470 cirrus_linear_writeb(opaque, addr, val & 0xff);
2471 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2472 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2473 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2474 #endif
2475 }
2476
2477
2478 static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2479 cirrus_linear_readb,
2480 cirrus_linear_readw,
2481 cirrus_linear_readl,
2482 };
2483
2484 static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2485 cirrus_linear_writeb,
2486 cirrus_linear_writew,
2487 cirrus_linear_writel,
2488 };
2489
2490 static void cirrus_linear_mem_writeb(void *opaque, target_phys_addr_t addr,
2491 uint32_t val)
2492 {
2493 CirrusVGAState *s = (CirrusVGAState *) opaque;
2494
2495 addr &= s->cirrus_addr_mask;
2496 *(s->vram_ptr + addr) = val;
2497 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2498 }
2499
2500 static void cirrus_linear_mem_writew(void *opaque, target_phys_addr_t addr,
2501 uint32_t val)
2502 {
2503 CirrusVGAState *s = (CirrusVGAState *) opaque;
2504
2505 addr &= s->cirrus_addr_mask;
2506 cpu_to_le16w((uint16_t *)(s->vram_ptr + addr), val);
2507 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2508 }
2509
2510 static void cirrus_linear_mem_writel(void *opaque, target_phys_addr_t addr,
2511 uint32_t val)
2512 {
2513 CirrusVGAState *s = (CirrusVGAState *) opaque;
2514
2515 addr &= s->cirrus_addr_mask;
2516 cpu_to_le32w((uint32_t *)(s->vram_ptr + addr), val);
2517 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2518 }
2519
2520 /***************************************
2521 *
2522 * system to screen memory access
2523 *
2524 ***************************************/
2525
2526
2527 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2528 {
2529 uint32_t ret;
2530
2531 /* XXX handle bitblt */
2532 ret = 0xff;
2533 return ret;
2534 }
2535
2536 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2537 {
2538 uint32_t v;
2539 #ifdef TARGET_WORDS_BIGENDIAN
2540 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2541 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2542 #else
2543 v = cirrus_linear_bitblt_readb(opaque, addr);
2544 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2545 #endif
2546 return v;
2547 }
2548
2549 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2550 {
2551 uint32_t v;
2552 #ifdef TARGET_WORDS_BIGENDIAN
2553 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2554 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2555 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2556 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2557 #else
2558 v = cirrus_linear_bitblt_readb(opaque, addr);
2559 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2560 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2561 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2562 #endif
2563 return v;
2564 }
2565
2566 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2567 uint32_t val)
2568 {
2569 CirrusVGAState *s = (CirrusVGAState *) opaque;
2570
2571 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2572 /* bitblt */
2573 *s->cirrus_srcptr++ = (uint8_t) val;
2574 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2575 cirrus_bitblt_cputovideo_next(s);
2576 }
2577 }
2578 }
2579
2580 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2581 uint32_t val)
2582 {
2583 #ifdef TARGET_WORDS_BIGENDIAN
2584 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2585 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2586 #else
2587 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2588 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2589 #endif
2590 }
2591
2592 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2593 uint32_t val)
2594 {
2595 #ifdef TARGET_WORDS_BIGENDIAN
2596 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2597 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2598 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2599 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2600 #else
2601 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2602 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2603 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2604 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2605 #endif
2606 }
2607
2608
2609 static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2610 cirrus_linear_bitblt_readb,
2611 cirrus_linear_bitblt_readw,
2612 cirrus_linear_bitblt_readl,
2613 };
2614
2615 static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2616 cirrus_linear_bitblt_writeb,
2617 cirrus_linear_bitblt_writew,
2618 cirrus_linear_bitblt_writel,
2619 };
2620
2621 static void map_linear_vram(CirrusVGAState *s)
2622 {
2623
2624 if (!s->map_addr && s->lfb_addr && s->lfb_end) {
2625 s->map_addr = s->lfb_addr;
2626 s->map_end = s->lfb_end;
2627 cpu_register_physical_memory(s->map_addr, s->map_end - s->map_addr, s->vram_offset);
2628 vga_dirty_log_start((VGAState *)s);
2629 }
2630
2631 if (!s->map_addr)
2632 return;
2633
2634 s->lfb_vram_mapped = 0;
2635
2636 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2637 && !((s->sr[0x07] & 0x01) == 0)
2638 && !((s->gr[0x0B] & 0x14) == 0x14)
2639 && !(s->gr[0x0B] & 0x02)) {
2640
2641 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000,
2642 (s->vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM);
2643 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000,
2644 (s->vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM);
2645
2646 s->lfb_vram_mapped = 1;
2647 vga_dirty_log_start((VGAState *)s);
2648 }
2649 else {
2650 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000, s->vga_io_memory);
2651 cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000, s->vga_io_memory);
2652 }
2653
2654 }
2655
2656 static void unmap_linear_vram(CirrusVGAState *s)
2657 {
2658 if (s->map_addr && s->lfb_addr && s->lfb_end) {
2659 vga_dirty_log_stop((VGAState *)s);
2660 s->map_addr = s->map_end = 0;
2661 }
2662
2663 cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
2664 s->vga_io_memory);
2665 }
2666
2667 /* Compute the memory access functions */
2668 static void cirrus_update_memory_access(CirrusVGAState *s)
2669 {
2670 unsigned mode;
2671
2672 if ((s->sr[0x17] & 0x44) == 0x44) {
2673 goto generic_io;
2674 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2675 goto generic_io;
2676 } else {
2677 if ((s->gr[0x0B] & 0x14) == 0x14) {
2678 goto generic_io;
2679 } else if (s->gr[0x0B] & 0x02) {
2680 goto generic_io;
2681 }
2682
2683 mode = s->gr[0x05] & 0x7;
2684 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2685 map_linear_vram(s);
2686 s->cirrus_linear_write[0] = cirrus_linear_mem_writeb;
2687 s->cirrus_linear_write[1] = cirrus_linear_mem_writew;
2688 s->cirrus_linear_write[2] = cirrus_linear_mem_writel;
2689 } else {
2690 generic_io:
2691 unmap_linear_vram(s);
2692 s->cirrus_linear_write[0] = cirrus_linear_writeb;
2693 s->cirrus_linear_write[1] = cirrus_linear_writew;
2694 s->cirrus_linear_write[2] = cirrus_linear_writel;
2695 }
2696 }
2697 }
2698
2699
2700 /* I/O ports */
2701
2702 static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2703 {
2704 CirrusVGAState *s = opaque;
2705 int val, index;
2706
2707 /* check port range access depending on color/monochrome mode */
2708 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2709 || (addr >= 0x3d0 && addr <= 0x3df
2710 && !(s->msr & MSR_COLOR_EMULATION))) {
2711 val = 0xff;
2712 } else {
2713 switch (addr) {
2714 case 0x3c0:
2715 if (s->ar_flip_flop == 0) {
2716 val = s->ar_index;
2717 } else {
2718 val = 0;
2719 }
2720 break;
2721 case 0x3c1:
2722 index = s->ar_index & 0x1f;
2723 if (index < 21)
2724 val = s->ar[index];
2725 else
2726 val = 0;
2727 break;
2728 case 0x3c2:
2729 val = s->st00;
2730 break;
2731 case 0x3c4:
2732 val = s->sr_index;
2733 break;
2734 case 0x3c5:
2735 if (cirrus_hook_read_sr(s, s->sr_index, &val))
2736 break;
2737 val = s->sr[s->sr_index];
2738 #ifdef DEBUG_VGA_REG
2739 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2740 #endif
2741 break;
2742 case 0x3c6:
2743 cirrus_read_hidden_dac(s, &val);
2744 break;
2745 case 0x3c7:
2746 val = s->dac_state;
2747 break;
2748 case 0x3c8:
2749 val = s->dac_write_index;
2750 s->cirrus_hidden_dac_lockindex = 0;
2751 break;
2752 case 0x3c9:
2753 if (cirrus_hook_read_palette(s, &val))
2754 break;
2755 val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
2756 if (++s->dac_sub_index == 3) {
2757 s->dac_sub_index = 0;
2758 s->dac_read_index++;
2759 }
2760 break;
2761 case 0x3ca:
2762 val = s->fcr;
2763 break;
2764 case 0x3cc:
2765 val = s->msr;
2766 break;
2767 case 0x3ce:
2768 val = s->gr_index;
2769 break;
2770 case 0x3cf:
2771 if (cirrus_hook_read_gr(s, s->gr_index, &val))
2772 break;
2773 val = s->gr[s->gr_index];
2774 #ifdef DEBUG_VGA_REG
2775 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2776 #endif
2777 break;
2778 case 0x3b4:
2779 case 0x3d4:
2780 val = s->cr_index;
2781 break;
2782 case 0x3b5:
2783 case 0x3d5:
2784 if (cirrus_hook_read_cr(s, s->cr_index, &val))
2785 break;
2786 val = s->cr[s->cr_index];
2787 #ifdef DEBUG_VGA_REG
2788 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2789 #endif
2790 break;
2791 case 0x3ba:
2792 case 0x3da:
2793 /* just toggle to fool polling */
2794 val = s->st01 = s->retrace((VGAState *) s);
2795 s->ar_flip_flop = 0;
2796 break;
2797 default:
2798 val = 0x00;
2799 break;
2800 }
2801 }
2802 #if defined(DEBUG_VGA)
2803 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2804 #endif
2805 return val;
2806 }
2807
2808 static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2809 {
2810 CirrusVGAState *s = opaque;
2811 int index;
2812
2813 /* check port range access depending on color/monochrome mode */
2814 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2815 || (addr >= 0x3d0 && addr <= 0x3df
2816 && !(s->msr & MSR_COLOR_EMULATION)))
2817 return;
2818
2819 #ifdef DEBUG_VGA
2820 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2821 #endif
2822
2823 switch (addr) {
2824 case 0x3c0:
2825 if (s->ar_flip_flop == 0) {
2826 val &= 0x3f;
2827 s->ar_index = val;
2828 } else {
2829 index = s->ar_index & 0x1f;
2830 switch (index) {
2831 case 0x00 ... 0x0f:
2832 s->ar[index] = val & 0x3f;
2833 break;
2834 case 0x10:
2835 s->ar[index] = val & ~0x10;
2836 break;
2837 case 0x11:
2838 s->ar[index] = val;
2839 break;
2840 case 0x12:
2841 s->ar[index] = val & ~0xc0;
2842 break;
2843 case 0x13:
2844 s->ar[index] = val & ~0xf0;
2845 break;
2846 case 0x14:
2847 s->ar[index] = val & ~0xf0;
2848 break;
2849 default:
2850 break;
2851 }
2852 }
2853 s->ar_flip_flop ^= 1;
2854 break;
2855 case 0x3c2:
2856 s->msr = val & ~0x10;
2857 s->update_retrace_info((VGAState *) s);
2858 break;
2859 case 0x3c4:
2860 s->sr_index = val;
2861 break;
2862 case 0x3c5:
2863 if (cirrus_hook_write_sr(s, s->sr_index, val))
2864 break;
2865 #ifdef DEBUG_VGA_REG
2866 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2867 #endif
2868 s->sr[s->sr_index] = val & sr_mask[s->sr_index];
2869 if (s->sr_index == 1) s->update_retrace_info((VGAState *) s);
2870 break;
2871 case 0x3c6:
2872 cirrus_write_hidden_dac(s, val);
2873 break;
2874 case 0x3c7:
2875 s->dac_read_index = val;
2876 s->dac_sub_index = 0;
2877 s->dac_state = 3;
2878 break;
2879 case 0x3c8:
2880 s->dac_write_index = val;
2881 s->dac_sub_index = 0;
2882 s->dac_state = 0;
2883 break;
2884 case 0x3c9:
2885 if (cirrus_hook_write_palette(s, val))
2886 break;
2887 s->dac_cache[s->dac_sub_index] = val;
2888 if (++s->dac_sub_index == 3) {
2889 memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
2890 s->dac_sub_index = 0;
2891 s->dac_write_index++;
2892 }
2893 break;
2894 case 0x3ce:
2895 s->gr_index = val;
2896 break;
2897 case 0x3cf:
2898 if (cirrus_hook_write_gr(s, s->gr_index, val))
2899 break;
2900 #ifdef DEBUG_VGA_REG
2901 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2902 #endif
2903 s->gr[s->gr_index] = val & gr_mask[s->gr_index];
2904 break;
2905 case 0x3b4:
2906 case 0x3d4:
2907 s->cr_index = val;
2908 break;
2909 case 0x3b5:
2910 case 0x3d5:
2911 if (cirrus_hook_write_cr(s, s->cr_index, val))
2912 break;
2913 #ifdef DEBUG_VGA_REG
2914 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2915 #endif
2916 /* handle CR0-7 protection */
2917 if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) {
2918 /* can always write bit 4 of CR7 */
2919 if (s->cr_index == 7)
2920 s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
2921 return;
2922 }
2923 switch (s->cr_index) {
2924 case 0x01: /* horizontal display end */
2925 case 0x07:
2926 case 0x09:
2927 case 0x0c:
2928 case 0x0d:
2929 case 0x12: /* vertical display end */
2930 s->cr[s->cr_index] = val;
2931 break;
2932
2933 default:
2934 s->cr[s->cr_index] = val;
2935 break;
2936 }
2937
2938 switch(s->cr_index) {
2939 case 0x00:
2940 case 0x04:
2941 case 0x05:
2942 case 0x06:
2943 case 0x07:
2944 case 0x11:
2945 case 0x17:
2946 s->update_retrace_info((VGAState *) s);
2947 break;
2948 }
2949 break;
2950 case 0x3ba:
2951 case 0x3da:
2952 s->fcr = val & 0x10;
2953 break;
2954 }
2955 }
2956
2957 /***************************************
2958 *
2959 * memory-mapped I/O access
2960 *
2961 ***************************************/
2962
2963 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2964 {
2965 CirrusVGAState *s = (CirrusVGAState *) opaque;
2966
2967 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2968
2969 if (addr >= 0x100) {
2970 return cirrus_mmio_blt_read(s, addr - 0x100);
2971 } else {
2972 return vga_ioport_read(s, addr + 0x3c0);
2973 }
2974 }
2975
2976 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2977 {
2978 uint32_t v;
2979 #ifdef TARGET_WORDS_BIGENDIAN
2980 v = cirrus_mmio_readb(opaque, addr) << 8;
2981 v |= cirrus_mmio_readb(opaque, addr + 1);
2982 #else
2983 v = cirrus_mmio_readb(opaque, addr);
2984 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2985 #endif
2986 return v;
2987 }
2988
2989 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2990 {
2991 uint32_t v;
2992 #ifdef TARGET_WORDS_BIGENDIAN
2993 v = cirrus_mmio_readb(opaque, addr) << 24;
2994 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2995 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2996 v |= cirrus_mmio_readb(opaque, addr + 3);
2997 #else
2998 v = cirrus_mmio_readb(opaque, addr);
2999 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
3000 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
3001 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
3002 #endif
3003 return v;
3004 }
3005
3006 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
3007 uint32_t val)
3008 {
3009 CirrusVGAState *s = (CirrusVGAState *) opaque;
3010
3011 addr &= CIRRUS_PNPMMIO_SIZE - 1;
3012
3013 if (addr >= 0x100) {
3014 cirrus_mmio_blt_write(s, addr - 0x100, val);
3015 } else {
3016 vga_ioport_write(s, addr + 0x3c0, val);
3017 }
3018 }
3019
3020 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
3021 uint32_t val)
3022 {
3023 #ifdef TARGET_WORDS_BIGENDIAN
3024 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
3025 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
3026 #else
3027 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3028 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3029 #endif
3030 }
3031
3032 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
3033 uint32_t val)
3034 {
3035 #ifdef TARGET_WORDS_BIGENDIAN
3036 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
3037 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
3038 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
3039 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
3040 #else
3041 cirrus_mmio_writeb(opaque, addr, val & 0xff);
3042 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
3043 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
3044 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
3045 #endif
3046 }
3047
3048
3049 static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
3050 cirrus_mmio_readb,
3051 cirrus_mmio_readw,
3052 cirrus_mmio_readl,
3053 };
3054
3055 static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
3056 cirrus_mmio_writeb,
3057 cirrus_mmio_writew,
3058 cirrus_mmio_writel,
3059 };
3060
3061 /* load/save state */
3062
3063 static void cirrus_vga_save(QEMUFile *f, void *opaque)
3064 {
3065 CirrusVGAState *s = opaque;
3066
3067 if (s->pci_dev)
3068 pci_device_save(s->pci_dev, f);
3069
3070 qemu_put_be32s(f, &s->latch);
3071 qemu_put_8s(f, &s->sr_index);
3072 qemu_put_buffer(f, s->sr, 256);
3073 qemu_put_8s(f, &s->gr_index);
3074 qemu_put_8s(f, &s->cirrus_shadow_gr0);
3075 qemu_put_8s(f, &s->cirrus_shadow_gr1);
3076 qemu_put_buffer(f, s->gr + 2, 254);
3077 qemu_put_8s(f, &s->ar_index);
3078 qemu_put_buffer(f, s->ar, 21);
3079 qemu_put_be32(f, s->ar_flip_flop);
3080 qemu_put_8s(f, &s->cr_index);
3081 qemu_put_buffer(f, s->cr, 256);
3082 qemu_put_8s(f, &s->msr);
3083 qemu_put_8s(f, &s->fcr);
3084 qemu_put_8s(f, &s->st00);
3085 qemu_put_8s(f, &s->st01);
3086
3087 qemu_put_8s(f, &s->dac_state);
3088 qemu_put_8s(f, &s->dac_sub_index);
3089 qemu_put_8s(f, &s->dac_read_index);
3090 qemu_put_8s(f, &s->dac_write_index);
3091 qemu_put_buffer(f, s->dac_cache, 3);
3092 qemu_put_buffer(f, s->palette, 768);
3093
3094 qemu_put_be32(f, s->bank_offset);
3095
3096 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
3097 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
3098
3099 qemu_put_be32s(f, &s->hw_cursor_x);
3100 qemu_put_be32s(f, &s->hw_cursor_y);
3101 /* XXX: we do not save the bitblt state - we assume we do not save
3102 the state when the blitter is active */
3103 }
3104
3105 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3106 {
3107 CirrusVGAState *s = opaque;
3108 int ret;
3109
3110 if (version_id > 2)
3111 return -EINVAL;
3112
3113 if (s->pci_dev && version_id >= 2) {
3114 ret = pci_device_load(s->pci_dev, f);
3115 if (ret < 0)
3116 return ret;
3117 }
3118
3119 qemu_get_be32s(f, &s->latch);
3120 qemu_get_8s(f, &s->sr_index);
3121 qemu_get_buffer(f, s->sr, 256);
3122 qemu_get_8s(f, &s->gr_index);
3123 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3124 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3125 s->gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3126 s->gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3127 qemu_get_buffer(f, s->gr + 2, 254);
3128 qemu_get_8s(f, &s->ar_index);
3129 qemu_get_buffer(f, s->ar, 21);
3130 s->ar_flip_flop=qemu_get_be32(f);
3131 qemu_get_8s(f, &s->cr_index);
3132 qemu_get_buffer(f, s->cr, 256);
3133 qemu_get_8s(f, &s->msr);
3134 qemu_get_8s(f, &s->fcr);
3135 qemu_get_8s(f, &s->st00);
3136 qemu_get_8s(f, &s->st01);
3137
3138 qemu_get_8s(f, &s->dac_state);
3139 qemu_get_8s(f, &s->dac_sub_index);
3140 qemu_get_8s(f, &s->dac_read_index);
3141 qemu_get_8s(f, &s->dac_write_index);
3142 qemu_get_buffer(f, s->dac_cache, 3);
3143 qemu_get_buffer(f, s->palette, 768);
3144
3145 s->bank_offset=qemu_get_be32(f);
3146
3147 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3148 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3149
3150 qemu_get_be32s(f, &s->hw_cursor_x);
3151 qemu_get_be32s(f, &s->hw_cursor_y);
3152
3153 cirrus_update_memory_access(s);
3154 /* force refresh */
3155 s->graphic_mode = -1;
3156 cirrus_update_bank_ptr(s, 0);
3157 cirrus_update_bank_ptr(s, 1);
3158 return 0;
3159 }
3160
3161 /***************************************
3162 *
3163 * initialize
3164 *
3165 ***************************************/
3166
3167 static void cirrus_reset(void *opaque)
3168 {
3169 CirrusVGAState *s = opaque;
3170
3171 vga_reset(s);
3172 s->sr[0x06] = 0x0f;
3173 if (s->device_id == CIRRUS_ID_CLGD5446) {
3174 /* 4MB 64 bit memory config, always PCI */
3175 s->sr[0x1F] = 0x2d; // MemClock
3176 s->gr[0x18] = 0x0f; // fastest memory configuration
3177 #if 1
3178 s->sr[0x0f] = 0x98;
3179 s->sr[0x17] = 0x20;
3180 s->sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3181 s->real_vram_size = 4096 * 1024;
3182 #else
3183 s->sr[0x0f] = 0x18;
3184 s->sr[0x17] = 0x20;
3185 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3186 s->real_vram_size = 2048 * 1024;
3187 #endif
3188 } else {
3189 s->sr[0x1F] = 0x22; // MemClock
3190 s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
3191 s->sr[0x17] = s->bustype;
3192 s->real_vram_size = 2048 * 1024;
3193 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3194 }
3195 s->cr[0x27] = s->device_id;
3196
3197 /* Win2K seems to assume that the pattern buffer is at 0xff
3198 initially ! */
3199 memset(s->vram_ptr, 0xff, s->real_vram_size);
3200
3201 s->cirrus_hidden_dac_lockindex = 5;
3202 s->cirrus_hidden_dac_data = 0;
3203
3204 /* I/O handler for LFB */
3205 s->cirrus_linear_io_addr =
3206 cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write,
3207 s);
3208 s->cirrus_linear_write = cpu_get_io_memory_write(s->cirrus_linear_io_addr);
3209
3210 /* I/O handler for LFB */
3211 s->cirrus_linear_bitblt_io_addr =
3212 cpu_register_io_memory(0, cirrus_linear_bitblt_read, cirrus_linear_bitblt_write,
3213 s);
3214
3215 /* I/O handler for memory-mapped I/O */
3216 s->cirrus_mmio_io_addr =
3217 cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
3218
3219 /* XXX: s->vram_size must be a power of two */
3220 s->cirrus_addr_mask = s->real_vram_size - 1;
3221 s->linear_mmio_mask = s->real_vram_size - 256;
3222
3223 s->get_bpp = cirrus_get_bpp;
3224 s->get_offsets = cirrus_get_offsets;
3225 s->get_resolution = cirrus_get_resolution;
3226 s->cursor_invalidate = cirrus_cursor_invalidate;
3227 s->cursor_draw_line = cirrus_cursor_draw_line;
3228 }
3229
3230 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3231 {
3232 int i;
3233 static int inited;
3234
3235 if (!inited) {
3236 inited = 1;
3237 for(i = 0;i < 256; i++)
3238 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3239 rop_to_index[CIRRUS_ROP_0] = 0;
3240 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3241 rop_to_index[CIRRUS_ROP_NOP] = 2;
3242 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3243 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3244 rop_to_index[CIRRUS_ROP_SRC] = 5;
3245 rop_to_index[CIRRUS_ROP_1] = 6;
3246 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3247 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3248 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3249 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3250 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3251 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3252 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3253 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3254 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3255 s->device_id = device_id;
3256 if (is_pci)
3257 s->bustype = CIRRUS_BUSTYPE_PCI;
3258 else
3259 s->bustype = CIRRUS_BUSTYPE_ISA;
3260 }
3261
3262 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
3263
3264 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
3265 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
3266 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
3267 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
3268
3269 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
3270
3271 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
3272 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
3273 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
3274 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
3275
3276 s->vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
3277 cirrus_vga_mem_write, s);
3278 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3279 s->vga_io_memory);
3280 qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
3281
3282 qemu_register_reset(cirrus_reset, s);
3283 cirrus_reset(s);
3284 register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
3285 }
3286
3287 /***************************************
3288 *
3289 * ISA bus support
3290 *
3291 ***************************************/
3292
3293 void isa_cirrus_vga_init(uint8_t *vga_ram_base,
3294 ram_addr_t vga_ram_offset, int vga_ram_size)
3295 {
3296 CirrusVGAState *s;
3297
3298 s = qemu_mallocz(sizeof(CirrusVGAState));
3299
3300 vga_common_init((VGAState *)s,
3301 vga_ram_base, vga_ram_offset, vga_ram_size);
3302 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3303 s->ds = graphic_console_init(s->update, s->invalidate,
3304 s->screen_dump, s->text_update, s);
3305 /* XXX ISA-LFB support */
3306 }
3307
3308 /***************************************
3309 *
3310 * PCI bus support
3311 *
3312 ***************************************/
3313
3314 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3315 uint32_t addr, uint32_t size, int type)
3316 {
3317 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3318
3319 /* XXX: add byte swapping apertures */
3320 cpu_register_physical_memory(addr, s->vram_size,
3321 s->cirrus_linear_io_addr);
3322 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3323 s->cirrus_linear_bitblt_io_addr);
3324
3325 s->map_addr = s->map_end = 0;
3326 s->lfb_addr = addr & TARGET_PAGE_MASK;
3327 s->lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
3328 /* account for overflow */
3329 if (s->lfb_end < addr + VGA_RAM_SIZE)
3330 s->lfb_end = addr + VGA_RAM_SIZE;
3331 }
3332
3333 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3334 uint32_t addr, uint32_t size, int type)
3335 {
3336 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3337
3338 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3339 s->cirrus_mmio_io_addr);
3340 }
3341
3342 void pci_cirrus_vga_init(PCIBus *bus, uint8_t *vga_ram_base,
3343 ram_addr_t vga_ram_offset, int vga_ram_size)
3344 {
3345 PCICirrusVGAState *d;
3346 uint8_t *pci_conf;
3347 CirrusVGAState *s;
3348 int device_id;
3349
3350 device_id = CIRRUS_ID_CLGD5446;
3351
3352 /* setup PCI configuration registers */
3353 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
3354 sizeof(PCICirrusVGAState),
3355 -1, NULL, NULL);
3356 pci_conf = d->dev.config;
3357 pci_conf[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS & 0xff);
3358 pci_conf[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS >> 8);
3359 pci_conf[0x02] = (uint8_t) (device_id & 0xff);
3360 pci_conf[0x03] = (uint8_t) (device_id >> 8);
3361 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3362 pci_conf[0x0a] = PCI_CLASS_SUB_VGA;
3363 pci_conf[0x0b] = PCI_CLASS_BASE_DISPLAY;
3364 pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
3365
3366 /* setup VGA */
3367 s = &d->cirrus_vga;
3368 vga_common_init((VGAState *)s,
3369 vga_ram_base, vga_ram_offset, vga_ram_size);
3370 cirrus_init_common(s, device_id, 1);
3371
3372 s->ds = graphic_console_init(s->update, s->invalidate,
3373 s->screen_dump, s->text_update, s);
3374
3375 s->pci_dev = (PCIDevice *)d;
3376
3377 /* setup memory space */
3378 /* memory #0 LFB */
3379 /* memory #1 memory-mapped I/O */
3380 /* XXX: s->vram_size must be a power of two */
3381 pci_register_io_region((PCIDevice *)d, 0, 0x2000000,
3382 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3383 if (device_id == CIRRUS_ID_CLGD5446) {
3384 pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3385 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3386 }
3387 /* XXX: ROM BIOS */
3388 }
Qemu copy for testing