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Partial SD card SPI mode support.
[qemu/mini2440.git] / hw / cirrus_vga.c
blobc35edf2607e915333a3e958901f00ce9516b8c30
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
35 /*
36 * TODO:
37 * - destination write mask support not complete (bits 5..7)
38 * - optimize linear mappings
39 * - optimize bitblt functions
40 */
41
42 //#define DEBUG_CIRRUS
43 //#define DEBUG_BITBLT
44
45 /***************************************
46 *
47 * definitions
48 *
49 ***************************************/
50
51 #define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
52
53 // ID
54 #define CIRRUS_ID_CLGD5422 (0x23<<2)
55 #define CIRRUS_ID_CLGD5426 (0x24<<2)
56 #define CIRRUS_ID_CLGD5424 (0x25<<2)
57 #define CIRRUS_ID_CLGD5428 (0x26<<2)
58 #define CIRRUS_ID_CLGD5430 (0x28<<2)
59 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
60 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
61 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
62
63 // sequencer 0x07
64 #define CIRRUS_SR7_BPP_VGA 0x00
65 #define CIRRUS_SR7_BPP_SVGA 0x01
66 #define CIRRUS_SR7_BPP_MASK 0x0e
67 #define CIRRUS_SR7_BPP_8 0x00
68 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
69 #define CIRRUS_SR7_BPP_24 0x04
70 #define CIRRUS_SR7_BPP_16 0x06
71 #define CIRRUS_SR7_BPP_32 0x08
72 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
73
74 // sequencer 0x0f
75 #define CIRRUS_MEMSIZE_512k 0x08
76 #define CIRRUS_MEMSIZE_1M 0x10
77 #define CIRRUS_MEMSIZE_2M 0x18
78 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
79
80 // sequencer 0x12
81 #define CIRRUS_CURSOR_SHOW 0x01
82 #define CIRRUS_CURSOR_HIDDENPEL 0x02
83 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
84
85 // sequencer 0x17
86 #define CIRRUS_BUSTYPE_VLBFAST 0x10
87 #define CIRRUS_BUSTYPE_PCI 0x20
88 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
89 #define CIRRUS_BUSTYPE_ISA 0x38
90 #define CIRRUS_MMIO_ENABLE 0x04
91 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
92 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
93
94 // control 0x0b
95 #define CIRRUS_BANKING_DUAL 0x01
96 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
97
98 // control 0x30
99 #define CIRRUS_BLTMODE_BACKWARDS 0x01
100 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
101 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
102 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
103 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
104 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
105 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
106 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
107 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
108 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
109 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
110
111 // control 0x31
112 #define CIRRUS_BLT_BUSY 0x01
113 #define CIRRUS_BLT_START 0x02
114 #define CIRRUS_BLT_RESET 0x04
115 #define CIRRUS_BLT_FIFOUSED 0x10
116 #define CIRRUS_BLT_AUTOSTART 0x80
117
118 // control 0x32
119 #define CIRRUS_ROP_0 0x00
120 #define CIRRUS_ROP_SRC_AND_DST 0x05
121 #define CIRRUS_ROP_NOP 0x06
122 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
123 #define CIRRUS_ROP_NOTDST 0x0b
124 #define CIRRUS_ROP_SRC 0x0d
125 #define CIRRUS_ROP_1 0x0e
126 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
127 #define CIRRUS_ROP_SRC_XOR_DST 0x59
128 #define CIRRUS_ROP_SRC_OR_DST 0x6d
129 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
130 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
131 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
132 #define CIRRUS_ROP_NOTSRC 0xd0
133 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
134 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
135
136 #define CIRRUS_ROP_NOP_INDEX 2
137 #define CIRRUS_ROP_SRC_INDEX 5
138
139 // control 0x33
140 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
141 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
142 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
143
144 // memory-mapped IO
145 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
146 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
147 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
148 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
149 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
150 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
151 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
152 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
153 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
154 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
155 #define CIRRUS_MMIO_BLTROP 0x1a // byte
156 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
157 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
158 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
159 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
160 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
161 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
162 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
164 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
165 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
166 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
167 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
168 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
169 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
170 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
171 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
172 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
173 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
174
175 // PCI 0x00: vendor, 0x02: device
176 #define PCI_VENDOR_CIRRUS 0x1013
177 #define PCI_DEVICE_CLGD5462 0x00d0
178 #define PCI_DEVICE_CLGD5465 0x00d6
179
180 // PCI 0x04: command(word), 0x06(word): status
181 #define PCI_COMMAND_IOACCESS 0x0001
182 #define PCI_COMMAND_MEMACCESS 0x0002
183 #define PCI_COMMAND_BUSMASTER 0x0004
184 #define PCI_COMMAND_SPECIALCYCLE 0x0008
185 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
186 #define PCI_COMMAND_PALETTESNOOPING 0x0020
187 #define PCI_COMMAND_PARITYDETECTION 0x0040
188 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
189 #define PCI_COMMAND_SERR 0x0100
190 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
191 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
192 #define PCI_CLASS_BASE_DISPLAY 0x03
193 // PCI 0x08, 0x00ff0000
194 #define PCI_CLASS_SUB_VGA 0x00
195 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
196 #define PCI_CLASS_HEADERTYPE_00h 0x00
197 // 0x10-0x3f (headertype 00h)
198 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
199 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
200 #define PCI_MAP_MEM 0x0
201 #define PCI_MAP_IO 0x1
202 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
203 #define PCI_MAP_IO_ADDR_MASK (~0x3)
204 #define PCI_MAP_MEMFLAGS_32BIT 0x0
205 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
206 #define PCI_MAP_MEMFLAGS_64BIT 0x4
207 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
208 // PCI 0x28: cardbus CIS pointer
209 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
210 // PCI 0x30: expansion ROM base address
211 #define PCI_ROMBIOS_ENABLED 0x1
212 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
213 // PCI 0x38: reserved
214 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
215
216 #define CIRRUS_PNPMMIO_SIZE 0x1000
217
218
219 /* I/O and memory hook */
220 #define CIRRUS_HOOK_NOT_HANDLED 0
221 #define CIRRUS_HOOK_HANDLED 1
222
223 struct CirrusVGAState;
224 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
225 uint8_t * dst, const uint8_t * src,
226 int dstpitch, int srcpitch,
227 int bltwidth, int bltheight);
228 typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
229 uint8_t *dst, int dst_pitch, int width, int height);
230
231 typedef struct CirrusVGAState {
232 VGA_STATE_COMMON
233
234 int cirrus_linear_io_addr;
235 int cirrus_linear_bitblt_io_addr;
236 int cirrus_mmio_io_addr;
237 uint32_t cirrus_addr_mask;
238 uint32_t linear_mmio_mask;
239 uint8_t cirrus_shadow_gr0;
240 uint8_t cirrus_shadow_gr1;
241 uint8_t cirrus_hidden_dac_lockindex;
242 uint8_t cirrus_hidden_dac_data;
243 uint32_t cirrus_bank_base[2];
244 uint32_t cirrus_bank_limit[2];
245 uint8_t cirrus_hidden_palette[48];
246 uint32_t hw_cursor_x;
247 uint32_t hw_cursor_y;
248 int cirrus_blt_pixelwidth;
249 int cirrus_blt_width;
250 int cirrus_blt_height;
251 int cirrus_blt_dstpitch;
252 int cirrus_blt_srcpitch;
253 uint32_t cirrus_blt_fgcol;
254 uint32_t cirrus_blt_bgcol;
255 uint32_t cirrus_blt_dstaddr;
256 uint32_t cirrus_blt_srcaddr;
257 uint8_t cirrus_blt_mode;
258 uint8_t cirrus_blt_modeext;
259 cirrus_bitblt_rop_t cirrus_rop;
260 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
261 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
262 uint8_t *cirrus_srcptr;
263 uint8_t *cirrus_srcptr_end;
264 uint32_t cirrus_srccounter;
265 /* hwcursor display state */
266 int last_hw_cursor_size;
267 int last_hw_cursor_x;
268 int last_hw_cursor_y;
269 int last_hw_cursor_y_start;
270 int last_hw_cursor_y_end;
271 int real_vram_size; /* XXX: suppress that */
272 CPUWriteMemoryFunc **cirrus_linear_write;
273 } CirrusVGAState;
274
275 typedef struct PCICirrusVGAState {
276 PCIDevice dev;
277 CirrusVGAState cirrus_vga;
278 } PCICirrusVGAState;
279
280 static uint8_t rop_to_index[256];
281
282 /***************************************
283 *
284 * prototypes.
285 *
286 ***************************************/
287
288
289 static void cirrus_bitblt_reset(CirrusVGAState *s);
290 static void cirrus_update_memory_access(CirrusVGAState *s);
291
292 /***************************************
293 *
294 * raster operations
295 *
296 ***************************************/
297
298 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
299 uint8_t *dst,const uint8_t *src,
300 int dstpitch,int srcpitch,
301 int bltwidth,int bltheight)
302 {
303 }
304
305 static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
306 uint8_t *dst,
307 int dstpitch, int bltwidth,int bltheight)
308 {
309 }
310
311 #define ROP_NAME 0
312 #define ROP_OP(d, s) d = 0
313 #include "cirrus_vga_rop.h"
314
315 #define ROP_NAME src_and_dst
316 #define ROP_OP(d, s) d = (s) & (d)
317 #include "cirrus_vga_rop.h"
318
319 #define ROP_NAME src_and_notdst
320 #define ROP_OP(d, s) d = (s) & (~(d))
321 #include "cirrus_vga_rop.h"
322
323 #define ROP_NAME notdst
324 #define ROP_OP(d, s) d = ~(d)
325 #include "cirrus_vga_rop.h"
326
327 #define ROP_NAME src
328 #define ROP_OP(d, s) d = s
329 #include "cirrus_vga_rop.h"
330
331 #define ROP_NAME 1
332 #define ROP_OP(d, s) d = ~0
333 #include "cirrus_vga_rop.h"
334
335 #define ROP_NAME notsrc_and_dst
336 #define ROP_OP(d, s) d = (~(s)) & (d)
337 #include "cirrus_vga_rop.h"
338
339 #define ROP_NAME src_xor_dst
340 #define ROP_OP(d, s) d = (s) ^ (d)
341 #include "cirrus_vga_rop.h"
342
343 #define ROP_NAME src_or_dst
344 #define ROP_OP(d, s) d = (s) | (d)
345 #include "cirrus_vga_rop.h"
346
347 #define ROP_NAME notsrc_or_notdst
348 #define ROP_OP(d, s) d = (~(s)) | (~(d))
349 #include "cirrus_vga_rop.h"
350
351 #define ROP_NAME src_notxor_dst
352 #define ROP_OP(d, s) d = ~((s) ^ (d))
353 #include "cirrus_vga_rop.h"
354
355 #define ROP_NAME src_or_notdst
356 #define ROP_OP(d, s) d = (s) | (~(d))
357 #include "cirrus_vga_rop.h"
358
359 #define ROP_NAME notsrc
360 #define ROP_OP(d, s) d = (~(s))
361 #include "cirrus_vga_rop.h"
362
363 #define ROP_NAME notsrc_or_dst
364 #define ROP_OP(d, s) d = (~(s)) | (d)
365 #include "cirrus_vga_rop.h"
366
367 #define ROP_NAME notsrc_and_notdst
368 #define ROP_OP(d, s) d = (~(s)) & (~(d))
369 #include "cirrus_vga_rop.h"
370
371 static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
372 cirrus_bitblt_rop_fwd_0,
373 cirrus_bitblt_rop_fwd_src_and_dst,
374 cirrus_bitblt_rop_nop,
375 cirrus_bitblt_rop_fwd_src_and_notdst,
376 cirrus_bitblt_rop_fwd_notdst,
377 cirrus_bitblt_rop_fwd_src,
378 cirrus_bitblt_rop_fwd_1,
379 cirrus_bitblt_rop_fwd_notsrc_and_dst,
380 cirrus_bitblt_rop_fwd_src_xor_dst,
381 cirrus_bitblt_rop_fwd_src_or_dst,
382 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
383 cirrus_bitblt_rop_fwd_src_notxor_dst,
384 cirrus_bitblt_rop_fwd_src_or_notdst,
385 cirrus_bitblt_rop_fwd_notsrc,
386 cirrus_bitblt_rop_fwd_notsrc_or_dst,
387 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
388 };
389
390 static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
391 cirrus_bitblt_rop_bkwd_0,
392 cirrus_bitblt_rop_bkwd_src_and_dst,
393 cirrus_bitblt_rop_nop,
394 cirrus_bitblt_rop_bkwd_src_and_notdst,
395 cirrus_bitblt_rop_bkwd_notdst,
396 cirrus_bitblt_rop_bkwd_src,
397 cirrus_bitblt_rop_bkwd_1,
398 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
399 cirrus_bitblt_rop_bkwd_src_xor_dst,
400 cirrus_bitblt_rop_bkwd_src_or_dst,
401 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
402 cirrus_bitblt_rop_bkwd_src_notxor_dst,
403 cirrus_bitblt_rop_bkwd_src_or_notdst,
404 cirrus_bitblt_rop_bkwd_notsrc,
405 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
406 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
407 };
408
409 #define TRANSP_ROP(name) {\
410 name ## _8,\
411 name ## _16,\
412 }
413 #define TRANSP_NOP(func) {\
414 func,\
415 func,\
416 }
417
418 static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
419 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
420 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
421 TRANSP_NOP(cirrus_bitblt_rop_nop),
422 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
423 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
424 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
425 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
426 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
427 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
428 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
429 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
430 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
431 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
432 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
433 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
434 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
435 };
436
437 static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
438 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
439 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
440 TRANSP_NOP(cirrus_bitblt_rop_nop),
441 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
442 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
443 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
444 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
445 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
446 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
447 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
448 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
449 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
450 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
451 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
452 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
453 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
454 };
455
456 #define ROP2(name) {\
457 name ## _8,\
458 name ## _16,\
459 name ## _24,\
460 name ## _32,\
461 }
462
463 #define ROP_NOP2(func) {\
464 func,\
465 func,\
466 func,\
467 func,\
468 }
469
470 static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
471 ROP2(cirrus_patternfill_0),
472 ROP2(cirrus_patternfill_src_and_dst),
473 ROP_NOP2(cirrus_bitblt_rop_nop),
474 ROP2(cirrus_patternfill_src_and_notdst),
475 ROP2(cirrus_patternfill_notdst),
476 ROP2(cirrus_patternfill_src),
477 ROP2(cirrus_patternfill_1),
478 ROP2(cirrus_patternfill_notsrc_and_dst),
479 ROP2(cirrus_patternfill_src_xor_dst),
480 ROP2(cirrus_patternfill_src_or_dst),
481 ROP2(cirrus_patternfill_notsrc_or_notdst),
482 ROP2(cirrus_patternfill_src_notxor_dst),
483 ROP2(cirrus_patternfill_src_or_notdst),
484 ROP2(cirrus_patternfill_notsrc),
485 ROP2(cirrus_patternfill_notsrc_or_dst),
486 ROP2(cirrus_patternfill_notsrc_and_notdst),
487 };
488
489 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
490 ROP2(cirrus_colorexpand_transp_0),
491 ROP2(cirrus_colorexpand_transp_src_and_dst),
492 ROP_NOP2(cirrus_bitblt_rop_nop),
493 ROP2(cirrus_colorexpand_transp_src_and_notdst),
494 ROP2(cirrus_colorexpand_transp_notdst),
495 ROP2(cirrus_colorexpand_transp_src),
496 ROP2(cirrus_colorexpand_transp_1),
497 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
498 ROP2(cirrus_colorexpand_transp_src_xor_dst),
499 ROP2(cirrus_colorexpand_transp_src_or_dst),
500 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
501 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
502 ROP2(cirrus_colorexpand_transp_src_or_notdst),
503 ROP2(cirrus_colorexpand_transp_notsrc),
504 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
505 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
506 };
507
508 static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
509 ROP2(cirrus_colorexpand_0),
510 ROP2(cirrus_colorexpand_src_and_dst),
511 ROP_NOP2(cirrus_bitblt_rop_nop),
512 ROP2(cirrus_colorexpand_src_and_notdst),
513 ROP2(cirrus_colorexpand_notdst),
514 ROP2(cirrus_colorexpand_src),
515 ROP2(cirrus_colorexpand_1),
516 ROP2(cirrus_colorexpand_notsrc_and_dst),
517 ROP2(cirrus_colorexpand_src_xor_dst),
518 ROP2(cirrus_colorexpand_src_or_dst),
519 ROP2(cirrus_colorexpand_notsrc_or_notdst),
520 ROP2(cirrus_colorexpand_src_notxor_dst),
521 ROP2(cirrus_colorexpand_src_or_notdst),
522 ROP2(cirrus_colorexpand_notsrc),
523 ROP2(cirrus_colorexpand_notsrc_or_dst),
524 ROP2(cirrus_colorexpand_notsrc_and_notdst),
525 };
526
527 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
528 ROP2(cirrus_colorexpand_pattern_transp_0),
529 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
530 ROP_NOP2(cirrus_bitblt_rop_nop),
531 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
532 ROP2(cirrus_colorexpand_pattern_transp_notdst),
533 ROP2(cirrus_colorexpand_pattern_transp_src),
534 ROP2(cirrus_colorexpand_pattern_transp_1),
535 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
536 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
537 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
538 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
539 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
540 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
541 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
542 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
543 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
544 };
545
546 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
547 ROP2(cirrus_colorexpand_pattern_0),
548 ROP2(cirrus_colorexpand_pattern_src_and_dst),
549 ROP_NOP2(cirrus_bitblt_rop_nop),
550 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
551 ROP2(cirrus_colorexpand_pattern_notdst),
552 ROP2(cirrus_colorexpand_pattern_src),
553 ROP2(cirrus_colorexpand_pattern_1),
554 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
555 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
556 ROP2(cirrus_colorexpand_pattern_src_or_dst),
557 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
558 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
559 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
560 ROP2(cirrus_colorexpand_pattern_notsrc),
561 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
562 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
563 };
564
565 static const cirrus_fill_t cirrus_fill[16][4] = {
566 ROP2(cirrus_fill_0),
567 ROP2(cirrus_fill_src_and_dst),
568 ROP_NOP2(cirrus_bitblt_fill_nop),
569 ROP2(cirrus_fill_src_and_notdst),
570 ROP2(cirrus_fill_notdst),
571 ROP2(cirrus_fill_src),
572 ROP2(cirrus_fill_1),
573 ROP2(cirrus_fill_notsrc_and_dst),
574 ROP2(cirrus_fill_src_xor_dst),
575 ROP2(cirrus_fill_src_or_dst),
576 ROP2(cirrus_fill_notsrc_or_notdst),
577 ROP2(cirrus_fill_src_notxor_dst),
578 ROP2(cirrus_fill_src_or_notdst),
579 ROP2(cirrus_fill_notsrc),
580 ROP2(cirrus_fill_notsrc_or_dst),
581 ROP2(cirrus_fill_notsrc_and_notdst),
582 };
583
584 static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
585 {
586 unsigned int color;
587 switch (s->cirrus_blt_pixelwidth) {
588 case 1:
589 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
590 break;
591 case 2:
592 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8);
593 s->cirrus_blt_fgcol = le16_to_cpu(color);
594 break;
595 case 3:
596 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
597 (s->gr[0x11] << 8) | (s->gr[0x13] << 16);
598 break;
599 default:
600 case 4:
601 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8) |
602 (s->gr[0x13] << 16) | (s->gr[0x15] << 24);
603 s->cirrus_blt_fgcol = le32_to_cpu(color);
604 break;
605 }
606 }
607
608 static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
609 {
610 unsigned int color;
611 switch (s->cirrus_blt_pixelwidth) {
612 case 1:
613 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
614 break;
615 case 2:
616 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8);
617 s->cirrus_blt_bgcol = le16_to_cpu(color);
618 break;
619 case 3:
620 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
621 (s->gr[0x10] << 8) | (s->gr[0x12] << 16);
622 break;
623 default:
624 case 4:
625 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8) |
626 (s->gr[0x12] << 16) | (s->gr[0x14] << 24);
627 s->cirrus_blt_bgcol = le32_to_cpu(color);
628 break;
629 }
630 }
631
632 static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
633 int off_pitch, int bytesperline,
634 int lines)
635 {
636 int y;
637 int off_cur;
638 int off_cur_end;
639
640 for (y = 0; y < lines; y++) {
641 off_cur = off_begin;
642 off_cur_end = off_cur + bytesperline;
643 off_cur &= TARGET_PAGE_MASK;
644 while (off_cur < off_cur_end) {
645 cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
646 off_cur += TARGET_PAGE_SIZE;
647 }
648 off_begin += off_pitch;
649 }
650 }
651
652 static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
653 const uint8_t * src)
654 {
655 uint8_t *dst;
656
657 dst = s->vram_ptr + s->cirrus_blt_dstaddr;
658 (*s->cirrus_rop) (s, dst, src,
659 s->cirrus_blt_dstpitch, 0,
660 s->cirrus_blt_width, s->cirrus_blt_height);
661 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
662 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
663 s->cirrus_blt_height);
664 return 1;
665 }
666
667 /* fill */
668
669 static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
670 {
671 cirrus_fill_t rop_func;
672
673 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
674 rop_func(s, s->vram_ptr + s->cirrus_blt_dstaddr,
675 s->cirrus_blt_dstpitch,
676 s->cirrus_blt_width, s->cirrus_blt_height);
677 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
678 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
679 s->cirrus_blt_height);
680 cirrus_bitblt_reset(s);
681 return 1;
682 }
683
684 /***************************************
685 *
686 * bitblt (video-to-video)
687 *
688 ***************************************/
689
690 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
691 {
692 return cirrus_bitblt_common_patterncopy(s,
693 s->vram_ptr +
694 (s->cirrus_blt_srcaddr & ~7));
695 }
696
697 static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
698 {
699 int sx, sy;
700 int dx, dy;
701 int width, height;
702 int depth;
703 int notify = 0;
704
705 depth = s->get_bpp((VGAState *)s) / 8;
706 s->get_resolution((VGAState *)s, &width, &height);
707
708 /* extra x, y */
709 sx = (src % (width * depth)) / depth;
710 sy = (src / (width * depth));
711 dx = (dst % (width *depth)) / depth;
712 dy = (dst / (width * depth));
713
714 /* normalize width */
715 w /= depth;
716
717 /* if we're doing a backward copy, we have to adjust
718 our x/y to be the upper left corner (instead of the lower
719 right corner) */
720 if (s->cirrus_blt_dstpitch < 0) {
721 sx -= (s->cirrus_blt_width / depth) - 1;
722 dx -= (s->cirrus_blt_width / depth) - 1;
723 sy -= s->cirrus_blt_height - 1;
724 dy -= s->cirrus_blt_height - 1;
725 }
726
727 /* are we in the visible portion of memory? */
728 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
729 (sx + w) <= width && (sy + h) <= height &&
730 (dx + w) <= width && (dy + h) <= height) {
731 notify = 1;
732 }
733
734 /* make to sure only copy if it's a plain copy ROP */
735 if (*s->cirrus_rop != cirrus_bitblt_rop_fwd_src &&
736 *s->cirrus_rop != cirrus_bitblt_rop_bkwd_src)
737 notify = 0;
738
739 /* we have to flush all pending changes so that the copy
740 is generated at the appropriate moment in time */
741 if (notify)
742 vga_hw_update();
743
744 (*s->cirrus_rop) (s, s->vram_ptr + s->cirrus_blt_dstaddr,
745 s->vram_ptr + s->cirrus_blt_srcaddr,
746 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
747 s->cirrus_blt_width, s->cirrus_blt_height);
748
749 if (notify)
750 s->ds->dpy_copy(s->ds,
751 sx, sy, dx, dy,
752 s->cirrus_blt_width / depth,
753 s->cirrus_blt_height);
754
755 /* we don't have to notify the display that this portion has
756 changed since dpy_copy implies this */
757
758 if (!notify)
759 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
760 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
761 s->cirrus_blt_height);
762 }
763
764 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
765 {
766 if (s->ds->dpy_copy) {
767 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->start_addr,
768 s->cirrus_blt_srcaddr - s->start_addr,
769 s->cirrus_blt_width, s->cirrus_blt_height);
770 } else {
771 (*s->cirrus_rop) (s, s->vram_ptr + s->cirrus_blt_dstaddr,
772 s->vram_ptr + s->cirrus_blt_srcaddr,
773 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
774 s->cirrus_blt_width, s->cirrus_blt_height);
775
776 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
777 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
778 s->cirrus_blt_height);
779 }
780
781 return 1;
782 }
783
784 /***************************************
785 *
786 * bitblt (cpu-to-video)
787 *
788 ***************************************/
789
790 static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
791 {
792 int copy_count;
793 uint8_t *end_ptr;
794
795 if (s->cirrus_srccounter > 0) {
796 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
797 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
798 the_end:
799 s->cirrus_srccounter = 0;
800 cirrus_bitblt_reset(s);
801 } else {
802 /* at least one scan line */
803 do {
804 (*s->cirrus_rop)(s, s->vram_ptr + s->cirrus_blt_dstaddr,
805 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
806 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
807 s->cirrus_blt_width, 1);
808 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
809 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
810 if (s->cirrus_srccounter <= 0)
811 goto the_end;
812 /* more bytes than needed can be transfered because of
813 word alignment, so we keep them for the next line */
814 /* XXX: keep alignment to speed up transfer */
815 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
816 copy_count = s->cirrus_srcptr_end - end_ptr;
817 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
818 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
819 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
820 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
821 }
822 }
823 }
824
825 /***************************************
826 *
827 * bitblt wrapper
828 *
829 ***************************************/
830
831 static void cirrus_bitblt_reset(CirrusVGAState * s)
832 {
833 s->gr[0x31] &=
834 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
835 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
836 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
837 s->cirrus_srccounter = 0;
838 cirrus_update_memory_access(s);
839 }
840
841 static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
842 {
843 int w;
844
845 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
846 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
847 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
848
849 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
850 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
851 s->cirrus_blt_srcpitch = 8;
852 } else {
853 /* XXX: check for 24 bpp */
854 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
855 }
856 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
857 } else {
858 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
859 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
860 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
861 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
862 else
863 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
864 } else {
865 /* always align input size to 32 bits */
866 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
867 }
868 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
869 }
870 s->cirrus_srcptr = s->cirrus_bltbuf;
871 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
872 cirrus_update_memory_access(s);
873 return 1;
874 }
875
876 static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
877 {
878 /* XXX */
879 #ifdef DEBUG_BITBLT
880 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
881 #endif
882 return 0;
883 }
884
885 static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
886 {
887 int ret;
888
889 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
890 ret = cirrus_bitblt_videotovideo_patterncopy(s);
891 } else {
892 ret = cirrus_bitblt_videotovideo_copy(s);
893 }
894 if (ret)
895 cirrus_bitblt_reset(s);
896 return ret;
897 }
898
899 static void cirrus_bitblt_start(CirrusVGAState * s)
900 {
901 uint8_t blt_rop;
902
903 s->gr[0x31] |= CIRRUS_BLT_BUSY;
904
905 s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
906 s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
907 s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
908 s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
909 s->cirrus_blt_dstaddr =
910 (s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
911 s->cirrus_blt_srcaddr =
912 (s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
913 s->cirrus_blt_mode = s->gr[0x30];
914 s->cirrus_blt_modeext = s->gr[0x33];
915 blt_rop = s->gr[0x32];
916
917 #ifdef DEBUG_BITBLT
918 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",
919 blt_rop,
920 s->cirrus_blt_mode,
921 s->cirrus_blt_modeext,
922 s->cirrus_blt_width,
923 s->cirrus_blt_height,
924 s->cirrus_blt_dstpitch,
925 s->cirrus_blt_srcpitch,
926 s->cirrus_blt_dstaddr,
927 s->cirrus_blt_srcaddr,
928 s->gr[0x2f]);
929 #endif
930
931 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
932 case CIRRUS_BLTMODE_PIXELWIDTH8:
933 s->cirrus_blt_pixelwidth = 1;
934 break;
935 case CIRRUS_BLTMODE_PIXELWIDTH16:
936 s->cirrus_blt_pixelwidth = 2;
937 break;
938 case CIRRUS_BLTMODE_PIXELWIDTH24:
939 s->cirrus_blt_pixelwidth = 3;
940 break;
941 case CIRRUS_BLTMODE_PIXELWIDTH32:
942 s->cirrus_blt_pixelwidth = 4;
943 break;
944 default:
945 #ifdef DEBUG_BITBLT
946 printf("cirrus: bitblt - pixel width is unknown\n");
947 #endif
948 goto bitblt_ignore;
949 }
950 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
951
952 if ((s->
953 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
954 CIRRUS_BLTMODE_MEMSYSDEST))
955 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
956 #ifdef DEBUG_BITBLT
957 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
958 #endif
959 goto bitblt_ignore;
960 }
961
962 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
963 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
964 CIRRUS_BLTMODE_TRANSPARENTCOMP |
965 CIRRUS_BLTMODE_PATTERNCOPY |
966 CIRRUS_BLTMODE_COLOREXPAND)) ==
967 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
968 cirrus_bitblt_fgcol(s);
969 cirrus_bitblt_solidfill(s, blt_rop);
970 } else {
971 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
972 CIRRUS_BLTMODE_PATTERNCOPY)) ==
973 CIRRUS_BLTMODE_COLOREXPAND) {
974
975 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
976 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
977 cirrus_bitblt_bgcol(s);
978 else
979 cirrus_bitblt_fgcol(s);
980 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
981 } else {
982 cirrus_bitblt_fgcol(s);
983 cirrus_bitblt_bgcol(s);
984 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
985 }
986 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
987 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
988 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
989 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
990 cirrus_bitblt_bgcol(s);
991 else
992 cirrus_bitblt_fgcol(s);
993 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
994 } else {
995 cirrus_bitblt_fgcol(s);
996 cirrus_bitblt_bgcol(s);
997 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
998 }
999 } else {
1000 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1001 }
1002 } else {
1003 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
1004 if (s->cirrus_blt_pixelwidth > 2) {
1005 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
1006 goto bitblt_ignore;
1007 }
1008 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1009 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1010 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1011 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1012 } else {
1013 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
1014 }
1015 } else {
1016 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
1017 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
1018 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
1019 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1020 } else {
1021 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1022 }
1023 }
1024 }
1025 // setup bitblt engine.
1026 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1027 if (!cirrus_bitblt_cputovideo(s))
1028 goto bitblt_ignore;
1029 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1030 if (!cirrus_bitblt_videotocpu(s))
1031 goto bitblt_ignore;
1032 } else {
1033 if (!cirrus_bitblt_videotovideo(s))
1034 goto bitblt_ignore;
1035 }
1036 }
1037 return;
1038 bitblt_ignore:;
1039 cirrus_bitblt_reset(s);
1040 }
1041
1042 static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1043 {
1044 unsigned old_value;
1045
1046 old_value = s->gr[0x31];
1047 s->gr[0x31] = reg_value;
1048
1049 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1050 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1051 cirrus_bitblt_reset(s);
1052 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1053 ((reg_value & CIRRUS_BLT_START) != 0)) {
1054 cirrus_bitblt_start(s);
1055 }
1056 }
1057
1058
1059 /***************************************
1060 *
1061 * basic parameters
1062 *
1063 ***************************************/
1064
1065 static void cirrus_get_offsets(VGAState *s1,
1066 uint32_t *pline_offset,
1067 uint32_t *pstart_addr,
1068 uint32_t *pline_compare)
1069 {
1070 CirrusVGAState * s = (CirrusVGAState *)s1;
1071 uint32_t start_addr, line_offset, line_compare;
1072
1073 line_offset = s->cr[0x13]
1074 | ((s->cr[0x1b] & 0x10) << 4);
1075 line_offset <<= 3;
1076 *pline_offset = line_offset;
1077
1078 start_addr = (s->cr[0x0c] << 8)
1079 | s->cr[0x0d]
1080 | ((s->cr[0x1b] & 0x01) << 16)
1081 | ((s->cr[0x1b] & 0x0c) << 15)
1082 | ((s->cr[0x1d] & 0x80) << 12);
1083 *pstart_addr = start_addr;
1084
1085 line_compare = s->cr[0x18] |
1086 ((s->cr[0x07] & 0x10) << 4) |
1087 ((s->cr[0x09] & 0x40) << 3);
1088 *pline_compare = line_compare;
1089 }
1090
1091 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1092 {
1093 uint32_t ret = 16;
1094
1095 switch (s->cirrus_hidden_dac_data & 0xf) {
1096 case 0:
1097 ret = 15;
1098 break; /* Sierra HiColor */
1099 case 1:
1100 ret = 16;
1101 break; /* XGA HiColor */
1102 default:
1103 #ifdef DEBUG_CIRRUS
1104 printf("cirrus: invalid DAC value %x in 16bpp\n",
1105 (s->cirrus_hidden_dac_data & 0xf));
1106 #endif
1107 ret = 15; /* XXX */
1108 break;
1109 }
1110 return ret;
1111 }
1112
1113 static int cirrus_get_bpp(VGAState *s1)
1114 {
1115 CirrusVGAState * s = (CirrusVGAState *)s1;
1116 uint32_t ret = 8;
1117
1118 if ((s->sr[0x07] & 0x01) != 0) {
1119 /* Cirrus SVGA */
1120 switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1121 case CIRRUS_SR7_BPP_8:
1122 ret = 8;
1123 break;
1124 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1125 ret = cirrus_get_bpp16_depth(s);
1126 break;
1127 case CIRRUS_SR7_BPP_24:
1128 ret = 24;
1129 break;
1130 case CIRRUS_SR7_BPP_16:
1131 ret = cirrus_get_bpp16_depth(s);
1132 break;
1133 case CIRRUS_SR7_BPP_32:
1134 ret = 32;
1135 break;
1136 default:
1137 #ifdef DEBUG_CIRRUS
1138 printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
1139 #endif
1140 ret = 8;
1141 break;
1142 }
1143 } else {
1144 /* VGA */
1145 ret = 0;
1146 }
1147
1148 return ret;
1149 }
1150
1151 static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1152 {
1153 int width, height;
1154
1155 width = (s->cr[0x01] + 1) * 8;
1156 height = s->cr[0x12] |
1157 ((s->cr[0x07] & 0x02) << 7) |
1158 ((s->cr[0x07] & 0x40) << 3);
1159 height = (height + 1);
1160 /* interlace support */
1161 if (s->cr[0x1a] & 0x01)
1162 height = height * 2;
1163 *pwidth = width;
1164 *pheight = height;
1165 }
1166
1167 /***************************************
1168 *
1169 * bank memory
1170 *
1171 ***************************************/
1172
1173 static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1174 {
1175 unsigned offset;
1176 unsigned limit;
1177
1178 if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
1179 offset = s->gr[0x09 + bank_index];
1180 else /* single bank */
1181 offset = s->gr[0x09];
1182
1183 if ((s->gr[0x0b] & 0x20) != 0)
1184 offset <<= 14;
1185 else
1186 offset <<= 12;
1187
1188 if (s->real_vram_size <= offset)
1189 limit = 0;
1190 else
1191 limit = s->real_vram_size - offset;
1192
1193 if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1194 if (limit > 0x8000) {
1195 offset += 0x8000;
1196 limit -= 0x8000;
1197 } else {
1198 limit = 0;
1199 }
1200 }
1201
1202 if (limit > 0) {
1203 s->cirrus_bank_base[bank_index] = offset;
1204 s->cirrus_bank_limit[bank_index] = limit;
1205 } else {
1206 s->cirrus_bank_base[bank_index] = 0;
1207 s->cirrus_bank_limit[bank_index] = 0;
1208 }
1209 }
1210
1211 /***************************************
1212 *
1213 * I/O access between 0x3c4-0x3c5
1214 *
1215 ***************************************/
1216
1217 static int
1218 cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1219 {
1220 switch (reg_index) {
1221 case 0x00: // Standard VGA
1222 case 0x01: // Standard VGA
1223 case 0x02: // Standard VGA
1224 case 0x03: // Standard VGA
1225 case 0x04: // Standard VGA
1226 return CIRRUS_HOOK_NOT_HANDLED;
1227 case 0x06: // Unlock Cirrus extensions
1228 *reg_value = s->sr[reg_index];
1229 break;
1230 case 0x10:
1231 case 0x30:
1232 case 0x50:
1233 case 0x70: // Graphics Cursor X
1234 case 0x90:
1235 case 0xb0:
1236 case 0xd0:
1237 case 0xf0: // Graphics Cursor X
1238 *reg_value = s->sr[0x10];
1239 break;
1240 case 0x11:
1241 case 0x31:
1242 case 0x51:
1243 case 0x71: // Graphics Cursor Y
1244 case 0x91:
1245 case 0xb1:
1246 case 0xd1:
1247 case 0xf1: // Graphics Cursor Y
1248 *reg_value = s->sr[0x11];
1249 break;
1250 case 0x05: // ???
1251 case 0x07: // Extended Sequencer Mode
1252 case 0x08: // EEPROM Control
1253 case 0x09: // Scratch Register 0
1254 case 0x0a: // Scratch Register 1
1255 case 0x0b: // VCLK 0
1256 case 0x0c: // VCLK 1
1257 case 0x0d: // VCLK 2
1258 case 0x0e: // VCLK 3
1259 case 0x0f: // DRAM Control
1260 case 0x12: // Graphics Cursor Attribute
1261 case 0x13: // Graphics Cursor Pattern Address
1262 case 0x14: // Scratch Register 2
1263 case 0x15: // Scratch Register 3
1264 case 0x16: // Performance Tuning Register
1265 case 0x17: // Configuration Readback and Extended Control
1266 case 0x18: // Signature Generator Control
1267 case 0x19: // Signal Generator Result
1268 case 0x1a: // Signal Generator Result
1269 case 0x1b: // VCLK 0 Denominator & Post
1270 case 0x1c: // VCLK 1 Denominator & Post
1271 case 0x1d: // VCLK 2 Denominator & Post
1272 case 0x1e: // VCLK 3 Denominator & Post
1273 case 0x1f: // BIOS Write Enable and MCLK select
1274 #ifdef DEBUG_CIRRUS
1275 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1276 #endif
1277 *reg_value = s->sr[reg_index];
1278 break;
1279 default:
1280 #ifdef DEBUG_CIRRUS
1281 printf("cirrus: inport sr_index %02x\n", reg_index);
1282 #endif
1283 *reg_value = 0xff;
1284 break;
1285 }
1286
1287 return CIRRUS_HOOK_HANDLED;
1288 }
1289
1290 static int
1291 cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1292 {
1293 switch (reg_index) {
1294 case 0x00: // Standard VGA
1295 case 0x01: // Standard VGA
1296 case 0x02: // Standard VGA
1297 case 0x03: // Standard VGA
1298 case 0x04: // Standard VGA
1299 return CIRRUS_HOOK_NOT_HANDLED;
1300 case 0x06: // Unlock Cirrus extensions
1301 reg_value &= 0x17;
1302 if (reg_value == 0x12) {
1303 s->sr[reg_index] = 0x12;
1304 } else {
1305 s->sr[reg_index] = 0x0f;
1306 }
1307 break;
1308 case 0x10:
1309 case 0x30:
1310 case 0x50:
1311 case 0x70: // Graphics Cursor X
1312 case 0x90:
1313 case 0xb0:
1314 case 0xd0:
1315 case 0xf0: // Graphics Cursor X
1316 s->sr[0x10] = reg_value;
1317 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
1318 break;
1319 case 0x11:
1320 case 0x31:
1321 case 0x51:
1322 case 0x71: // Graphics Cursor Y
1323 case 0x91:
1324 case 0xb1:
1325 case 0xd1:
1326 case 0xf1: // Graphics Cursor Y
1327 s->sr[0x11] = reg_value;
1328 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
1329 break;
1330 case 0x07: // Extended Sequencer Mode
1331 case 0x08: // EEPROM Control
1332 case 0x09: // Scratch Register 0
1333 case 0x0a: // Scratch Register 1
1334 case 0x0b: // VCLK 0
1335 case 0x0c: // VCLK 1
1336 case 0x0d: // VCLK 2
1337 case 0x0e: // VCLK 3
1338 case 0x0f: // DRAM Control
1339 case 0x12: // Graphics Cursor Attribute
1340 case 0x13: // Graphics Cursor Pattern Address
1341 case 0x14: // Scratch Register 2
1342 case 0x15: // Scratch Register 3
1343 case 0x16: // Performance Tuning Register
1344 case 0x18: // Signature Generator Control
1345 case 0x19: // Signature Generator Result
1346 case 0x1a: // Signature Generator Result
1347 case 0x1b: // VCLK 0 Denominator & Post
1348 case 0x1c: // VCLK 1 Denominator & Post
1349 case 0x1d: // VCLK 2 Denominator & Post
1350 case 0x1e: // VCLK 3 Denominator & Post
1351 case 0x1f: // BIOS Write Enable and MCLK select
1352 s->sr[reg_index] = reg_value;
1353 #ifdef DEBUG_CIRRUS
1354 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1355 reg_index, reg_value);
1356 #endif
1357 break;
1358 case 0x17: // Configuration Readback and Extended Control
1359 s->sr[reg_index] = (s->sr[reg_index] & 0x38) | (reg_value & 0xc7);
1360 cirrus_update_memory_access(s);
1361 break;
1362 default:
1363 #ifdef DEBUG_CIRRUS
1364 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1365 reg_value);
1366 #endif
1367 break;
1368 }
1369
1370 return CIRRUS_HOOK_HANDLED;
1371 }
1372
1373 /***************************************
1374 *
1375 * I/O access at 0x3c6
1376 *
1377 ***************************************/
1378
1379 static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1380 {
1381 *reg_value = 0xff;
1382 if (++s->cirrus_hidden_dac_lockindex == 5) {
1383 *reg_value = s->cirrus_hidden_dac_data;
1384 s->cirrus_hidden_dac_lockindex = 0;
1385 }
1386 }
1387
1388 static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1389 {
1390 if (s->cirrus_hidden_dac_lockindex == 4) {
1391 s->cirrus_hidden_dac_data = reg_value;
1392 #if defined(DEBUG_CIRRUS)
1393 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1394 #endif
1395 }
1396 s->cirrus_hidden_dac_lockindex = 0;
1397 }
1398
1399 /***************************************
1400 *
1401 * I/O access at 0x3c9
1402 *
1403 ***************************************/
1404
1405 static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1406 {
1407 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1408 return CIRRUS_HOOK_NOT_HANDLED;
1409 *reg_value =
1410 s->cirrus_hidden_palette[(s->dac_read_index & 0x0f) * 3 +
1411 s->dac_sub_index];
1412 if (++s->dac_sub_index == 3) {
1413 s->dac_sub_index = 0;
1414 s->dac_read_index++;
1415 }
1416 return CIRRUS_HOOK_HANDLED;
1417 }
1418
1419 static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1420 {
1421 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1422 return CIRRUS_HOOK_NOT_HANDLED;
1423 s->dac_cache[s->dac_sub_index] = reg_value;
1424 if (++s->dac_sub_index == 3) {
1425 memcpy(&s->cirrus_hidden_palette[(s->dac_write_index & 0x0f) * 3],
1426 s->dac_cache, 3);
1427 /* XXX update cursor */
1428 s->dac_sub_index = 0;
1429 s->dac_write_index++;
1430 }
1431 return CIRRUS_HOOK_HANDLED;
1432 }
1433
1434 /***************************************
1435 *
1436 * I/O access between 0x3ce-0x3cf
1437 *
1438 ***************************************/
1439
1440 static int
1441 cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1442 {
1443 switch (reg_index) {
1444 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1445 *reg_value = s->cirrus_shadow_gr0;
1446 return CIRRUS_HOOK_HANDLED;
1447 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1448 *reg_value = s->cirrus_shadow_gr1;
1449 return CIRRUS_HOOK_HANDLED;
1450 case 0x02: // Standard VGA
1451 case 0x03: // Standard VGA
1452 case 0x04: // Standard VGA
1453 case 0x06: // Standard VGA
1454 case 0x07: // Standard VGA
1455 case 0x08: // Standard VGA
1456 return CIRRUS_HOOK_NOT_HANDLED;
1457 case 0x05: // Standard VGA, Cirrus extended mode
1458 default:
1459 break;
1460 }
1461
1462 if (reg_index < 0x3a) {
1463 *reg_value = s->gr[reg_index];
1464 } else {
1465 #ifdef DEBUG_CIRRUS
1466 printf("cirrus: inport gr_index %02x\n", reg_index);
1467 #endif
1468 *reg_value = 0xff;
1469 }
1470
1471 return CIRRUS_HOOK_HANDLED;
1472 }
1473
1474 static int
1475 cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1476 {
1477 #if defined(DEBUG_BITBLT) && 0
1478 printf("gr%02x: %02x\n", reg_index, reg_value);
1479 #endif
1480 switch (reg_index) {
1481 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1482 s->cirrus_shadow_gr0 = reg_value;
1483 return CIRRUS_HOOK_NOT_HANDLED;
1484 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1485 s->cirrus_shadow_gr1 = reg_value;
1486 return CIRRUS_HOOK_NOT_HANDLED;
1487 case 0x02: // Standard VGA
1488 case 0x03: // Standard VGA
1489 case 0x04: // Standard VGA
1490 case 0x06: // Standard VGA
1491 case 0x07: // Standard VGA
1492 case 0x08: // Standard VGA
1493 return CIRRUS_HOOK_NOT_HANDLED;
1494 case 0x05: // Standard VGA, Cirrus extended mode
1495 s->gr[reg_index] = reg_value & 0x7f;
1496 cirrus_update_memory_access(s);
1497 break;
1498 case 0x09: // bank offset #0
1499 case 0x0A: // bank offset #1
1500 s->gr[reg_index] = reg_value;
1501 cirrus_update_bank_ptr(s, 0);
1502 cirrus_update_bank_ptr(s, 1);
1503 break;
1504 case 0x0B:
1505 s->gr[reg_index] = reg_value;
1506 cirrus_update_bank_ptr(s, 0);
1507 cirrus_update_bank_ptr(s, 1);
1508 cirrus_update_memory_access(s);
1509 break;
1510 case 0x10: // BGCOLOR 0x0000ff00
1511 case 0x11: // FGCOLOR 0x0000ff00
1512 case 0x12: // BGCOLOR 0x00ff0000
1513 case 0x13: // FGCOLOR 0x00ff0000
1514 case 0x14: // BGCOLOR 0xff000000
1515 case 0x15: // FGCOLOR 0xff000000
1516 case 0x20: // BLT WIDTH 0x0000ff
1517 case 0x22: // BLT HEIGHT 0x0000ff
1518 case 0x24: // BLT DEST PITCH 0x0000ff
1519 case 0x26: // BLT SRC PITCH 0x0000ff
1520 case 0x28: // BLT DEST ADDR 0x0000ff
1521 case 0x29: // BLT DEST ADDR 0x00ff00
1522 case 0x2c: // BLT SRC ADDR 0x0000ff
1523 case 0x2d: // BLT SRC ADDR 0x00ff00
1524 case 0x2f: // BLT WRITEMASK
1525 case 0x30: // BLT MODE
1526 case 0x32: // RASTER OP
1527 case 0x33: // BLT MODEEXT
1528 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1529 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1530 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1531 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1532 s->gr[reg_index] = reg_value;
1533 break;
1534 case 0x21: // BLT WIDTH 0x001f00
1535 case 0x23: // BLT HEIGHT 0x001f00
1536 case 0x25: // BLT DEST PITCH 0x001f00
1537 case 0x27: // BLT SRC PITCH 0x001f00
1538 s->gr[reg_index] = reg_value & 0x1f;
1539 break;
1540 case 0x2a: // BLT DEST ADDR 0x3f0000
1541 s->gr[reg_index] = reg_value & 0x3f;
1542 /* if auto start mode, starts bit blt now */
1543 if (s->gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1544 cirrus_bitblt_start(s);
1545 }
1546 break;
1547 case 0x2e: // BLT SRC ADDR 0x3f0000
1548 s->gr[reg_index] = reg_value & 0x3f;
1549 break;
1550 case 0x31: // BLT STATUS/START
1551 cirrus_write_bitblt(s, reg_value);
1552 break;
1553 default:
1554 #ifdef DEBUG_CIRRUS
1555 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1556 reg_value);
1557 #endif
1558 break;
1559 }
1560
1561 return CIRRUS_HOOK_HANDLED;
1562 }
1563
1564 /***************************************
1565 *
1566 * I/O access between 0x3d4-0x3d5
1567 *
1568 ***************************************/
1569
1570 static int
1571 cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1572 {
1573 switch (reg_index) {
1574 case 0x00: // Standard VGA
1575 case 0x01: // Standard VGA
1576 case 0x02: // Standard VGA
1577 case 0x03: // Standard VGA
1578 case 0x04: // Standard VGA
1579 case 0x05: // Standard VGA
1580 case 0x06: // Standard VGA
1581 case 0x07: // Standard VGA
1582 case 0x08: // Standard VGA
1583 case 0x09: // Standard VGA
1584 case 0x0a: // Standard VGA
1585 case 0x0b: // Standard VGA
1586 case 0x0c: // Standard VGA
1587 case 0x0d: // Standard VGA
1588 case 0x0e: // Standard VGA
1589 case 0x0f: // Standard VGA
1590 case 0x10: // Standard VGA
1591 case 0x11: // Standard VGA
1592 case 0x12: // Standard VGA
1593 case 0x13: // Standard VGA
1594 case 0x14: // Standard VGA
1595 case 0x15: // Standard VGA
1596 case 0x16: // Standard VGA
1597 case 0x17: // Standard VGA
1598 case 0x18: // Standard VGA
1599 return CIRRUS_HOOK_NOT_HANDLED;
1600 case 0x19: // Interlace End
1601 case 0x1a: // Miscellaneous Control
1602 case 0x1b: // Extended Display Control
1603 case 0x1c: // Sync Adjust and Genlock
1604 case 0x1d: // Overlay Extended Control
1605 case 0x22: // Graphics Data Latches Readback (R)
1606 case 0x24: // Attribute Controller Toggle Readback (R)
1607 case 0x25: // Part Status
1608 case 0x27: // Part ID (R)
1609 *reg_value = s->cr[reg_index];
1610 break;
1611 case 0x26: // Attribute Controller Index Readback (R)
1612 *reg_value = s->ar_index & 0x3f;
1613 break;
1614 default:
1615 #ifdef DEBUG_CIRRUS
1616 printf("cirrus: inport cr_index %02x\n", reg_index);
1617 *reg_value = 0xff;
1618 #endif
1619 break;
1620 }
1621
1622 return CIRRUS_HOOK_HANDLED;
1623 }
1624
1625 static int
1626 cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1627 {
1628 switch (reg_index) {
1629 case 0x00: // Standard VGA
1630 case 0x01: // Standard VGA
1631 case 0x02: // Standard VGA
1632 case 0x03: // Standard VGA
1633 case 0x04: // Standard VGA
1634 case 0x05: // Standard VGA
1635 case 0x06: // Standard VGA
1636 case 0x07: // Standard VGA
1637 case 0x08: // Standard VGA
1638 case 0x09: // Standard VGA
1639 case 0x0a: // Standard VGA
1640 case 0x0b: // Standard VGA
1641 case 0x0c: // Standard VGA
1642 case 0x0d: // Standard VGA
1643 case 0x0e: // Standard VGA
1644 case 0x0f: // Standard VGA
1645 case 0x10: // Standard VGA
1646 case 0x11: // Standard VGA
1647 case 0x12: // Standard VGA
1648 case 0x13: // Standard VGA
1649 case 0x14: // Standard VGA
1650 case 0x15: // Standard VGA
1651 case 0x16: // Standard VGA
1652 case 0x17: // Standard VGA
1653 case 0x18: // Standard VGA
1654 return CIRRUS_HOOK_NOT_HANDLED;
1655 case 0x19: // Interlace End
1656 case 0x1a: // Miscellaneous Control
1657 case 0x1b: // Extended Display Control
1658 case 0x1c: // Sync Adjust and Genlock
1659 case 0x1d: // Overlay Extended Control
1660 s->cr[reg_index] = reg_value;
1661 #ifdef DEBUG_CIRRUS
1662 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1663 reg_index, reg_value);
1664 #endif
1665 break;
1666 case 0x22: // Graphics Data Latches Readback (R)
1667 case 0x24: // Attribute Controller Toggle Readback (R)
1668 case 0x26: // Attribute Controller Index Readback (R)
1669 case 0x27: // Part ID (R)
1670 break;
1671 case 0x25: // Part Status
1672 default:
1673 #ifdef DEBUG_CIRRUS
1674 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1675 reg_value);
1676 #endif
1677 break;
1678 }
1679
1680 return CIRRUS_HOOK_HANDLED;
1681 }
1682
1683 /***************************************
1684 *
1685 * memory-mapped I/O (bitblt)
1686 *
1687 ***************************************/
1688
1689 static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1690 {
1691 int value = 0xff;
1692
1693 switch (address) {
1694 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1695 cirrus_hook_read_gr(s, 0x00, &value);
1696 break;
1697 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1698 cirrus_hook_read_gr(s, 0x10, &value);
1699 break;
1700 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1701 cirrus_hook_read_gr(s, 0x12, &value);
1702 break;
1703 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1704 cirrus_hook_read_gr(s, 0x14, &value);
1705 break;
1706 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1707 cirrus_hook_read_gr(s, 0x01, &value);
1708 break;
1709 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1710 cirrus_hook_read_gr(s, 0x11, &value);
1711 break;
1712 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1713 cirrus_hook_read_gr(s, 0x13, &value);
1714 break;
1715 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1716 cirrus_hook_read_gr(s, 0x15, &value);
1717 break;
1718 case (CIRRUS_MMIO_BLTWIDTH + 0):
1719 cirrus_hook_read_gr(s, 0x20, &value);
1720 break;
1721 case (CIRRUS_MMIO_BLTWIDTH + 1):
1722 cirrus_hook_read_gr(s, 0x21, &value);
1723 break;
1724 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1725 cirrus_hook_read_gr(s, 0x22, &value);
1726 break;
1727 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1728 cirrus_hook_read_gr(s, 0x23, &value);
1729 break;
1730 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1731 cirrus_hook_read_gr(s, 0x24, &value);
1732 break;
1733 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1734 cirrus_hook_read_gr(s, 0x25, &value);
1735 break;
1736 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1737 cirrus_hook_read_gr(s, 0x26, &value);
1738 break;
1739 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1740 cirrus_hook_read_gr(s, 0x27, &value);
1741 break;
1742 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1743 cirrus_hook_read_gr(s, 0x28, &value);
1744 break;
1745 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1746 cirrus_hook_read_gr(s, 0x29, &value);
1747 break;
1748 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1749 cirrus_hook_read_gr(s, 0x2a, &value);
1750 break;
1751 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1752 cirrus_hook_read_gr(s, 0x2c, &value);
1753 break;
1754 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1755 cirrus_hook_read_gr(s, 0x2d, &value);
1756 break;
1757 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1758 cirrus_hook_read_gr(s, 0x2e, &value);
1759 break;
1760 case CIRRUS_MMIO_BLTWRITEMASK:
1761 cirrus_hook_read_gr(s, 0x2f, &value);
1762 break;
1763 case CIRRUS_MMIO_BLTMODE:
1764 cirrus_hook_read_gr(s, 0x30, &value);
1765 break;
1766 case CIRRUS_MMIO_BLTROP:
1767 cirrus_hook_read_gr(s, 0x32, &value);
1768 break;
1769 case CIRRUS_MMIO_BLTMODEEXT:
1770 cirrus_hook_read_gr(s, 0x33, &value);
1771 break;
1772 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1773 cirrus_hook_read_gr(s, 0x34, &value);
1774 break;
1775 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1776 cirrus_hook_read_gr(s, 0x35, &value);
1777 break;
1778 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1779 cirrus_hook_read_gr(s, 0x38, &value);
1780 break;
1781 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1782 cirrus_hook_read_gr(s, 0x39, &value);
1783 break;
1784 case CIRRUS_MMIO_BLTSTATUS:
1785 cirrus_hook_read_gr(s, 0x31, &value);
1786 break;
1787 default:
1788 #ifdef DEBUG_CIRRUS
1789 printf("cirrus: mmio read - address 0x%04x\n", address);
1790 #endif
1791 break;
1792 }
1793
1794 return (uint8_t) value;
1795 }
1796
1797 static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1798 uint8_t value)
1799 {
1800 switch (address) {
1801 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1802 cirrus_hook_write_gr(s, 0x00, value);
1803 break;
1804 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1805 cirrus_hook_write_gr(s, 0x10, value);
1806 break;
1807 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1808 cirrus_hook_write_gr(s, 0x12, value);
1809 break;
1810 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1811 cirrus_hook_write_gr(s, 0x14, value);
1812 break;
1813 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1814 cirrus_hook_write_gr(s, 0x01, value);
1815 break;
1816 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1817 cirrus_hook_write_gr(s, 0x11, value);
1818 break;
1819 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1820 cirrus_hook_write_gr(s, 0x13, value);
1821 break;
1822 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1823 cirrus_hook_write_gr(s, 0x15, value);
1824 break;
1825 case (CIRRUS_MMIO_BLTWIDTH + 0):
1826 cirrus_hook_write_gr(s, 0x20, value);
1827 break;
1828 case (CIRRUS_MMIO_BLTWIDTH + 1):
1829 cirrus_hook_write_gr(s, 0x21, value);
1830 break;
1831 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1832 cirrus_hook_write_gr(s, 0x22, value);
1833 break;
1834 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1835 cirrus_hook_write_gr(s, 0x23, value);
1836 break;
1837 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1838 cirrus_hook_write_gr(s, 0x24, value);
1839 break;
1840 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1841 cirrus_hook_write_gr(s, 0x25, value);
1842 break;
1843 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1844 cirrus_hook_write_gr(s, 0x26, value);
1845 break;
1846 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1847 cirrus_hook_write_gr(s, 0x27, value);
1848 break;
1849 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1850 cirrus_hook_write_gr(s, 0x28, value);
1851 break;
1852 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1853 cirrus_hook_write_gr(s, 0x29, value);
1854 break;
1855 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1856 cirrus_hook_write_gr(s, 0x2a, value);
1857 break;
1858 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1859 /* ignored */
1860 break;
1861 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1862 cirrus_hook_write_gr(s, 0x2c, value);
1863 break;
1864 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1865 cirrus_hook_write_gr(s, 0x2d, value);
1866 break;
1867 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1868 cirrus_hook_write_gr(s, 0x2e, value);
1869 break;
1870 case CIRRUS_MMIO_BLTWRITEMASK:
1871 cirrus_hook_write_gr(s, 0x2f, value);
1872 break;
1873 case CIRRUS_MMIO_BLTMODE:
1874 cirrus_hook_write_gr(s, 0x30, value);
1875 break;
1876 case CIRRUS_MMIO_BLTROP:
1877 cirrus_hook_write_gr(s, 0x32, value);
1878 break;
1879 case CIRRUS_MMIO_BLTMODEEXT:
1880 cirrus_hook_write_gr(s, 0x33, value);
1881 break;
1882 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1883 cirrus_hook_write_gr(s, 0x34, value);
1884 break;
1885 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1886 cirrus_hook_write_gr(s, 0x35, value);
1887 break;
1888 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1889 cirrus_hook_write_gr(s, 0x38, value);
1890 break;
1891 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1892 cirrus_hook_write_gr(s, 0x39, value);
1893 break;
1894 case CIRRUS_MMIO_BLTSTATUS:
1895 cirrus_hook_write_gr(s, 0x31, value);
1896 break;
1897 default:
1898 #ifdef DEBUG_CIRRUS
1899 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1900 address, value);
1901 #endif
1902 break;
1903 }
1904 }
1905
1906 /***************************************
1907 *
1908 * write mode 4/5
1909 *
1910 * assume TARGET_PAGE_SIZE >= 16
1911 *
1912 ***************************************/
1913
1914 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1915 unsigned mode,
1916 unsigned offset,
1917 uint32_t mem_value)
1918 {
1919 int x;
1920 unsigned val = mem_value;
1921 uint8_t *dst;
1922
1923 dst = s->vram_ptr + offset;
1924 for (x = 0; x < 8; x++) {
1925 if (val & 0x80) {
1926 *dst = s->cirrus_shadow_gr1;
1927 } else if (mode == 5) {
1928 *dst = s->cirrus_shadow_gr0;
1929 }
1930 val <<= 1;
1931 dst++;
1932 }
1933 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1934 cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
1935 }
1936
1937 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1938 unsigned mode,
1939 unsigned offset,
1940 uint32_t mem_value)
1941 {
1942 int x;
1943 unsigned val = mem_value;
1944 uint8_t *dst;
1945
1946 dst = s->vram_ptr + offset;
1947 for (x = 0; x < 8; x++) {
1948 if (val & 0x80) {
1949 *dst = s->cirrus_shadow_gr1;
1950 *(dst + 1) = s->gr[0x11];
1951 } else if (mode == 5) {
1952 *dst = s->cirrus_shadow_gr0;
1953 *(dst + 1) = s->gr[0x10];
1954 }
1955 val <<= 1;
1956 dst += 2;
1957 }
1958 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1959 cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
1960 }
1961
1962 /***************************************
1963 *
1964 * memory access between 0xa0000-0xbffff
1965 *
1966 ***************************************/
1967
1968 static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1969 {
1970 CirrusVGAState *s = opaque;
1971 unsigned bank_index;
1972 unsigned bank_offset;
1973 uint32_t val;
1974
1975 if ((s->sr[0x07] & 0x01) == 0) {
1976 return vga_mem_readb(s, addr);
1977 }
1978
1979 addr &= 0x1ffff;
1980
1981 if (addr < 0x10000) {
1982 /* XXX handle bitblt */
1983 /* video memory */
1984 bank_index = addr >> 15;
1985 bank_offset = addr & 0x7fff;
1986 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1987 bank_offset += s->cirrus_bank_base[bank_index];
1988 if ((s->gr[0x0B] & 0x14) == 0x14) {
1989 bank_offset <<= 4;
1990 } else if (s->gr[0x0B] & 0x02) {
1991 bank_offset <<= 3;
1992 }
1993 bank_offset &= s->cirrus_addr_mask;
1994 val = *(s->vram_ptr + bank_offset);
1995 } else
1996 val = 0xff;
1997 } else if (addr >= 0x18000 && addr < 0x18100) {
1998 /* memory-mapped I/O */
1999 val = 0xff;
2000 if ((s->sr[0x17] & 0x44) == 0x04) {
2001 val = cirrus_mmio_blt_read(s, addr & 0xff);
2002 }
2003 } else {
2004 val = 0xff;
2005 #ifdef DEBUG_CIRRUS
2006 printf("cirrus: mem_readb %06x\n", addr);
2007 #endif
2008 }
2009 return val;
2010 }
2011
2012 static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
2013 {
2014 uint32_t v;
2015 #ifdef TARGET_WORDS_BIGENDIAN
2016 v = cirrus_vga_mem_readb(opaque, addr) << 8;
2017 v |= cirrus_vga_mem_readb(opaque, addr + 1);
2018 #else
2019 v = cirrus_vga_mem_readb(opaque, addr);
2020 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2021 #endif
2022 return v;
2023 }
2024
2025 static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
2026 {
2027 uint32_t v;
2028 #ifdef TARGET_WORDS_BIGENDIAN
2029 v = cirrus_vga_mem_readb(opaque, addr) << 24;
2030 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
2031 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
2032 v |= cirrus_vga_mem_readb(opaque, addr + 3);
2033 #else
2034 v = cirrus_vga_mem_readb(opaque, addr);
2035 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
2036 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
2037 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
2038 #endif
2039 return v;
2040 }
2041
2042 static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
2043 uint32_t mem_value)
2044 {
2045 CirrusVGAState *s = opaque;
2046 unsigned bank_index;
2047 unsigned bank_offset;
2048 unsigned mode;
2049
2050 if ((s->sr[0x07] & 0x01) == 0) {
2051 vga_mem_writeb(s, addr, mem_value);
2052 return;
2053 }
2054
2055 addr &= 0x1ffff;
2056
2057 if (addr < 0x10000) {
2058 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2059 /* bitblt */
2060 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2061 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2062 cirrus_bitblt_cputovideo_next(s);
2063 }
2064 } else {
2065 /* video memory */
2066 bank_index = addr >> 15;
2067 bank_offset = addr & 0x7fff;
2068 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2069 bank_offset += s->cirrus_bank_base[bank_index];
2070 if ((s->gr[0x0B] & 0x14) == 0x14) {
2071 bank_offset <<= 4;
2072 } else if (s->gr[0x0B] & 0x02) {
2073 bank_offset <<= 3;
2074 }
2075 bank_offset &= s->cirrus_addr_mask;
2076 mode = s->gr[0x05] & 0x7;
2077 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2078 *(s->vram_ptr + bank_offset) = mem_value;
2079 cpu_physical_memory_set_dirty(s->vram_offset +
2080 bank_offset);
2081 } else {
2082 if ((s->gr[0x0B] & 0x14) != 0x14) {
2083 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2084 bank_offset,
2085 mem_value);
2086 } else {
2087 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2088 bank_offset,
2089 mem_value);
2090 }
2091 }
2092 }
2093 }
2094 } else if (addr >= 0x18000 && addr < 0x18100) {
2095 /* memory-mapped I/O */
2096 if ((s->sr[0x17] & 0x44) == 0x04) {
2097 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2098 }
2099 } else {
2100 #ifdef DEBUG_CIRRUS
2101 printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
2102 #endif
2103 }
2104 }
2105
2106 static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
2107 {
2108 #ifdef TARGET_WORDS_BIGENDIAN
2109 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
2110 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
2111 #else
2112 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2113 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2114 #endif
2115 }
2116
2117 static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
2118 {
2119 #ifdef TARGET_WORDS_BIGENDIAN
2120 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
2121 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2122 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2123 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
2124 #else
2125 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
2126 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2127 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2128 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2129 #endif
2130 }
2131
2132 static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
2133 cirrus_vga_mem_readb,
2134 cirrus_vga_mem_readw,
2135 cirrus_vga_mem_readl,
2136 };
2137
2138 static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
2139 cirrus_vga_mem_writeb,
2140 cirrus_vga_mem_writew,
2141 cirrus_vga_mem_writel,
2142 };
2143
2144 /***************************************
2145 *
2146 * hardware cursor
2147 *
2148 ***************************************/
2149
2150 static inline void invalidate_cursor1(CirrusVGAState *s)
2151 {
2152 if (s->last_hw_cursor_size) {
2153 vga_invalidate_scanlines((VGAState *)s,
2154 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2155 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2156 }
2157 }
2158
2159 static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2160 {
2161 const uint8_t *src;
2162 uint32_t content;
2163 int y, y_min, y_max;
2164
2165 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2166 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2167 src += (s->sr[0x13] & 0x3c) * 256;
2168 y_min = 64;
2169 y_max = -1;
2170 for(y = 0; y < 64; y++) {
2171 content = ((uint32_t *)src)[0] |
2172 ((uint32_t *)src)[1] |
2173 ((uint32_t *)src)[2] |
2174 ((uint32_t *)src)[3];
2175 if (content) {
2176 if (y < y_min)
2177 y_min = y;
2178 if (y > y_max)
2179 y_max = y;
2180 }
2181 src += 16;
2182 }
2183 } else {
2184 src += (s->sr[0x13] & 0x3f) * 256;
2185 y_min = 32;
2186 y_max = -1;
2187 for(y = 0; y < 32; y++) {
2188 content = ((uint32_t *)src)[0] |
2189 ((uint32_t *)(src + 128))[0];
2190 if (content) {
2191 if (y < y_min)
2192 y_min = y;
2193 if (y > y_max)
2194 y_max = y;
2195 }
2196 src += 4;
2197 }
2198 }
2199 if (y_min > y_max) {
2200 s->last_hw_cursor_y_start = 0;
2201 s->last_hw_cursor_y_end = 0;
2202 } else {
2203 s->last_hw_cursor_y_start = y_min;
2204 s->last_hw_cursor_y_end = y_max + 1;
2205 }
2206 }
2207
2208 /* NOTE: we do not currently handle the cursor bitmap change, so we
2209 update the cursor only if it moves. */
2210 static void cirrus_cursor_invalidate(VGAState *s1)
2211 {
2212 CirrusVGAState *s = (CirrusVGAState *)s1;
2213 int size;
2214
2215 if (!s->sr[0x12] & CIRRUS_CURSOR_SHOW) {
2216 size = 0;
2217 } else {
2218 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE)
2219 size = 64;
2220 else
2221 size = 32;
2222 }
2223 /* invalidate last cursor and new cursor if any change */
2224 if (s->last_hw_cursor_size != size ||
2225 s->last_hw_cursor_x != s->hw_cursor_x ||
2226 s->last_hw_cursor_y != s->hw_cursor_y) {
2227
2228 invalidate_cursor1(s);
2229
2230 s->last_hw_cursor_size = size;
2231 s->last_hw_cursor_x = s->hw_cursor_x;
2232 s->last_hw_cursor_y = s->hw_cursor_y;
2233 /* compute the real cursor min and max y */
2234 cirrus_cursor_compute_yrange(s);
2235 invalidate_cursor1(s);
2236 }
2237 }
2238
2239 static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2240 {
2241 CirrusVGAState *s = (CirrusVGAState *)s1;
2242 int w, h, bpp, x1, x2, poffset;
2243 unsigned int color0, color1;
2244 const uint8_t *palette, *src;
2245 uint32_t content;
2246
2247 if (!(s->sr[0x12] & CIRRUS_CURSOR_SHOW))
2248 return;
2249 /* fast test to see if the cursor intersects with the scan line */
2250 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2251 h = 64;
2252 } else {
2253 h = 32;
2254 }
2255 if (scr_y < s->hw_cursor_y ||
2256 scr_y >= (s->hw_cursor_y + h))
2257 return;
2258
2259 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
2260 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2261 src += (s->sr[0x13] & 0x3c) * 256;
2262 src += (scr_y - s->hw_cursor_y) * 16;
2263 poffset = 8;
2264 content = ((uint32_t *)src)[0] |
2265 ((uint32_t *)src)[1] |
2266 ((uint32_t *)src)[2] |
2267 ((uint32_t *)src)[3];
2268 } else {
2269 src += (s->sr[0x13] & 0x3f) * 256;
2270 src += (scr_y - s->hw_cursor_y) * 4;
2271 poffset = 128;
2272 content = ((uint32_t *)src)[0] |
2273 ((uint32_t *)(src + 128))[0];
2274 }
2275 /* if nothing to draw, no need to continue */
2276 if (!content)
2277 return;
2278 w = h;
2279
2280 x1 = s->hw_cursor_x;
2281 if (x1 >= s->last_scr_width)
2282 return;
2283 x2 = s->hw_cursor_x + w;
2284 if (x2 > s->last_scr_width)
2285 x2 = s->last_scr_width;
2286 w = x2 - x1;
2287 palette = s->cirrus_hidden_palette;
2288 color0 = s->rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2289 c6_to_8(palette[0x0 * 3 + 1]),
2290 c6_to_8(palette[0x0 * 3 + 2]));
2291 color1 = s->rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2292 c6_to_8(palette[0xf * 3 + 1]),
2293 c6_to_8(palette[0xf * 3 + 2]));
2294 bpp = ((s->ds->depth + 7) >> 3);
2295 d1 += x1 * bpp;
2296 switch(s->ds->depth) {
2297 default:
2298 break;
2299 case 8:
2300 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2301 break;
2302 case 15:
2303 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2304 break;
2305 case 16:
2306 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2307 break;
2308 case 32:
2309 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2310 break;
2311 }
2312 }
2313
2314 /***************************************
2315 *
2316 * LFB memory access
2317 *
2318 ***************************************/
2319
2320 static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2321 {
2322 CirrusVGAState *s = (CirrusVGAState *) opaque;
2323 uint32_t ret;
2324
2325 addr &= s->cirrus_addr_mask;
2326
2327 if (((s->sr[0x17] & 0x44) == 0x44) &&
2328 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2329 /* memory-mapped I/O */
2330 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2331 } else if (0) {
2332 /* XXX handle bitblt */
2333 ret = 0xff;
2334 } else {
2335 /* video memory */
2336 if ((s->gr[0x0B] & 0x14) == 0x14) {
2337 addr <<= 4;
2338 } else if (s->gr[0x0B] & 0x02) {
2339 addr <<= 3;
2340 }
2341 addr &= s->cirrus_addr_mask;
2342 ret = *(s->vram_ptr + addr);
2343 }
2344
2345 return ret;
2346 }
2347
2348 static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2349 {
2350 uint32_t v;
2351 #ifdef TARGET_WORDS_BIGENDIAN
2352 v = cirrus_linear_readb(opaque, addr) << 8;
2353 v |= cirrus_linear_readb(opaque, addr + 1);
2354 #else
2355 v = cirrus_linear_readb(opaque, addr);
2356 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2357 #endif
2358 return v;
2359 }
2360
2361 static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2362 {
2363 uint32_t v;
2364 #ifdef TARGET_WORDS_BIGENDIAN
2365 v = cirrus_linear_readb(opaque, addr) << 24;
2366 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2367 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2368 v |= cirrus_linear_readb(opaque, addr + 3);
2369 #else
2370 v = cirrus_linear_readb(opaque, addr);
2371 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2372 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2373 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2374 #endif
2375 return v;
2376 }
2377
2378 static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2379 uint32_t val)
2380 {
2381 CirrusVGAState *s = (CirrusVGAState *) opaque;
2382 unsigned mode;
2383
2384 addr &= s->cirrus_addr_mask;
2385
2386 if (((s->sr[0x17] & 0x44) == 0x44) &&
2387 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2388 /* memory-mapped I/O */
2389 cirrus_mmio_blt_write(s, addr & 0xff, val);
2390 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2391 /* bitblt */
2392 *s->cirrus_srcptr++ = (uint8_t) val;
2393 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2394 cirrus_bitblt_cputovideo_next(s);
2395 }
2396 } else {
2397 /* video memory */
2398 if ((s->gr[0x0B] & 0x14) == 0x14) {
2399 addr <<= 4;
2400 } else if (s->gr[0x0B] & 0x02) {
2401 addr <<= 3;
2402 }
2403 addr &= s->cirrus_addr_mask;
2404
2405 mode = s->gr[0x05] & 0x7;
2406 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2407 *(s->vram_ptr + addr) = (uint8_t) val;
2408 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2409 } else {
2410 if ((s->gr[0x0B] & 0x14) != 0x14) {
2411 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2412 } else {
2413 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2414 }
2415 }
2416 }
2417 }
2418
2419 static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2420 uint32_t val)
2421 {
2422 #ifdef TARGET_WORDS_BIGENDIAN
2423 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2424 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2425 #else
2426 cirrus_linear_writeb(opaque, addr, val & 0xff);
2427 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2428 #endif
2429 }
2430
2431 static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2432 uint32_t val)
2433 {
2434 #ifdef TARGET_WORDS_BIGENDIAN
2435 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2436 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2437 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2438 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2439 #else
2440 cirrus_linear_writeb(opaque, addr, val & 0xff);
2441 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2442 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2443 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2444 #endif
2445 }
2446
2447
2448 static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2449 cirrus_linear_readb,
2450 cirrus_linear_readw,
2451 cirrus_linear_readl,
2452 };
2453
2454 static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2455 cirrus_linear_writeb,
2456 cirrus_linear_writew,
2457 cirrus_linear_writel,
2458 };
2459
2460 static void cirrus_linear_mem_writeb(void *opaque, target_phys_addr_t addr,
2461 uint32_t val)
2462 {
2463 CirrusVGAState *s = (CirrusVGAState *) opaque;
2464
2465 addr &= s->cirrus_addr_mask;
2466 *(s->vram_ptr + addr) = val;
2467 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2468 }
2469
2470 static void cirrus_linear_mem_writew(void *opaque, target_phys_addr_t addr,
2471 uint32_t val)
2472 {
2473 CirrusVGAState *s = (CirrusVGAState *) opaque;
2474
2475 addr &= s->cirrus_addr_mask;
2476 cpu_to_le16w((uint16_t *)(s->vram_ptr + addr), val);
2477 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2478 }
2479
2480 static void cirrus_linear_mem_writel(void *opaque, target_phys_addr_t addr,
2481 uint32_t val)
2482 {
2483 CirrusVGAState *s = (CirrusVGAState *) opaque;
2484
2485 addr &= s->cirrus_addr_mask;
2486 cpu_to_le32w((uint32_t *)(s->vram_ptr + addr), val);
2487 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2488 }
2489
2490 /***************************************
2491 *
2492 * system to screen memory access
2493 *
2494 ***************************************/
2495
2496
2497 static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2498 {
2499 uint32_t ret;
2500
2501 /* XXX handle bitblt */
2502 ret = 0xff;
2503 return ret;
2504 }
2505
2506 static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2507 {
2508 uint32_t v;
2509 #ifdef TARGET_WORDS_BIGENDIAN
2510 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2511 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2512 #else
2513 v = cirrus_linear_bitblt_readb(opaque, addr);
2514 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2515 #endif
2516 return v;
2517 }
2518
2519 static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2520 {
2521 uint32_t v;
2522 #ifdef TARGET_WORDS_BIGENDIAN
2523 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2524 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2525 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2526 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2527 #else
2528 v = cirrus_linear_bitblt_readb(opaque, addr);
2529 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2530 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2531 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2532 #endif
2533 return v;
2534 }
2535
2536 static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2537 uint32_t val)
2538 {
2539 CirrusVGAState *s = (CirrusVGAState *) opaque;
2540
2541 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2542 /* bitblt */
2543 *s->cirrus_srcptr++ = (uint8_t) val;
2544 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2545 cirrus_bitblt_cputovideo_next(s);
2546 }
2547 }
2548 }
2549
2550 static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2551 uint32_t val)
2552 {
2553 #ifdef TARGET_WORDS_BIGENDIAN
2554 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2555 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2556 #else
2557 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2558 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2559 #endif
2560 }
2561
2562 static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2563 uint32_t val)
2564 {
2565 #ifdef TARGET_WORDS_BIGENDIAN
2566 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2567 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2568 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2569 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2570 #else
2571 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2572 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2573 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2574 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2575 #endif
2576 }
2577
2578
2579 static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2580 cirrus_linear_bitblt_readb,
2581 cirrus_linear_bitblt_readw,
2582 cirrus_linear_bitblt_readl,
2583 };
2584
2585 static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2586 cirrus_linear_bitblt_writeb,
2587 cirrus_linear_bitblt_writew,
2588 cirrus_linear_bitblt_writel,
2589 };
2590
2591 /* Compute the memory access functions */
2592 static void cirrus_update_memory_access(CirrusVGAState *s)
2593 {
2594 unsigned mode;
2595
2596 if ((s->sr[0x17] & 0x44) == 0x44) {
2597 goto generic_io;
2598 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2599 goto generic_io;
2600 } else {
2601 if ((s->gr[0x0B] & 0x14) == 0x14) {
2602 goto generic_io;
2603 } else if (s->gr[0x0B] & 0x02) {
2604 goto generic_io;
2605 }
2606
2607 mode = s->gr[0x05] & 0x7;
2608 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2609 s->cirrus_linear_write[0] = cirrus_linear_mem_writeb;
2610 s->cirrus_linear_write[1] = cirrus_linear_mem_writew;
2611 s->cirrus_linear_write[2] = cirrus_linear_mem_writel;
2612 } else {
2613 generic_io:
2614 s->cirrus_linear_write[0] = cirrus_linear_writeb;
2615 s->cirrus_linear_write[1] = cirrus_linear_writew;
2616 s->cirrus_linear_write[2] = cirrus_linear_writel;
2617 }
2618 }
2619 }
2620
2621
2622 /* I/O ports */
2623
2624 static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2625 {
2626 CirrusVGAState *s = opaque;
2627 int val, index;
2628
2629 /* check port range access depending on color/monochrome mode */
2630 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2631 || (addr >= 0x3d0 && addr <= 0x3df
2632 && !(s->msr & MSR_COLOR_EMULATION))) {
2633 val = 0xff;
2634 } else {
2635 switch (addr) {
2636 case 0x3c0:
2637 if (s->ar_flip_flop == 0) {
2638 val = s->ar_index;
2639 } else {
2640 val = 0;
2641 }
2642 break;
2643 case 0x3c1:
2644 index = s->ar_index & 0x1f;
2645 if (index < 21)
2646 val = s->ar[index];
2647 else
2648 val = 0;
2649 break;
2650 case 0x3c2:
2651 val = s->st00;
2652 break;
2653 case 0x3c4:
2654 val = s->sr_index;
2655 break;
2656 case 0x3c5:
2657 if (cirrus_hook_read_sr(s, s->sr_index, &val))
2658 break;
2659 val = s->sr[s->sr_index];
2660 #ifdef DEBUG_VGA_REG
2661 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2662 #endif
2663 break;
2664 case 0x3c6:
2665 cirrus_read_hidden_dac(s, &val);
2666 break;
2667 case 0x3c7:
2668 val = s->dac_state;
2669 break;
2670 case 0x3c8:
2671 val = s->dac_write_index;
2672 s->cirrus_hidden_dac_lockindex = 0;
2673 break;
2674 case 0x3c9:
2675 if (cirrus_hook_read_palette(s, &val))
2676 break;
2677 val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
2678 if (++s->dac_sub_index == 3) {
2679 s->dac_sub_index = 0;
2680 s->dac_read_index++;
2681 }
2682 break;
2683 case 0x3ca:
2684 val = s->fcr;
2685 break;
2686 case 0x3cc:
2687 val = s->msr;
2688 break;
2689 case 0x3ce:
2690 val = s->gr_index;
2691 break;
2692 case 0x3cf:
2693 if (cirrus_hook_read_gr(s, s->gr_index, &val))
2694 break;
2695 val = s->gr[s->gr_index];
2696 #ifdef DEBUG_VGA_REG
2697 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2698 #endif
2699 break;
2700 case 0x3b4:
2701 case 0x3d4:
2702 val = s->cr_index;
2703 break;
2704 case 0x3b5:
2705 case 0x3d5:
2706 if (cirrus_hook_read_cr(s, s->cr_index, &val))
2707 break;
2708 val = s->cr[s->cr_index];
2709 #ifdef DEBUG_VGA_REG
2710 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2711 #endif
2712 break;
2713 case 0x3ba:
2714 case 0x3da:
2715 /* just toggle to fool polling */
2716 s->st01 ^= ST01_V_RETRACE | ST01_DISP_ENABLE;
2717 val = s->st01;
2718 s->ar_flip_flop = 0;
2719 break;
2720 default:
2721 val = 0x00;
2722 break;
2723 }
2724 }
2725 #if defined(DEBUG_VGA)
2726 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2727 #endif
2728 return val;
2729 }
2730
2731 static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2732 {
2733 CirrusVGAState *s = opaque;
2734 int index;
2735
2736 /* check port range access depending on color/monochrome mode */
2737 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2738 || (addr >= 0x3d0 && addr <= 0x3df
2739 && !(s->msr & MSR_COLOR_EMULATION)))
2740 return;
2741
2742 #ifdef DEBUG_VGA
2743 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2744 #endif
2745
2746 switch (addr) {
2747 case 0x3c0:
2748 if (s->ar_flip_flop == 0) {
2749 val &= 0x3f;
2750 s->ar_index = val;
2751 } else {
2752 index = s->ar_index & 0x1f;
2753 switch (index) {
2754 case 0x00 ... 0x0f:
2755 s->ar[index] = val & 0x3f;
2756 break;
2757 case 0x10:
2758 s->ar[index] = val & ~0x10;
2759 break;
2760 case 0x11:
2761 s->ar[index] = val;
2762 break;
2763 case 0x12:
2764 s->ar[index] = val & ~0xc0;
2765 break;
2766 case 0x13:
2767 s->ar[index] = val & ~0xf0;
2768 break;
2769 case 0x14:
2770 s->ar[index] = val & ~0xf0;
2771 break;
2772 default:
2773 break;
2774 }
2775 }
2776 s->ar_flip_flop ^= 1;
2777 break;
2778 case 0x3c2:
2779 s->msr = val & ~0x10;
2780 break;
2781 case 0x3c4:
2782 s->sr_index = val;
2783 break;
2784 case 0x3c5:
2785 if (cirrus_hook_write_sr(s, s->sr_index, val))
2786 break;
2787 #ifdef DEBUG_VGA_REG
2788 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2789 #endif
2790 s->sr[s->sr_index] = val & sr_mask[s->sr_index];
2791 break;
2792 case 0x3c6:
2793 cirrus_write_hidden_dac(s, val);
2794 break;
2795 case 0x3c7:
2796 s->dac_read_index = val;
2797 s->dac_sub_index = 0;
2798 s->dac_state = 3;
2799 break;
2800 case 0x3c8:
2801 s->dac_write_index = val;
2802 s->dac_sub_index = 0;
2803 s->dac_state = 0;
2804 break;
2805 case 0x3c9:
2806 if (cirrus_hook_write_palette(s, val))
2807 break;
2808 s->dac_cache[s->dac_sub_index] = val;
2809 if (++s->dac_sub_index == 3) {
2810 memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
2811 s->dac_sub_index = 0;
2812 s->dac_write_index++;
2813 }
2814 break;
2815 case 0x3ce:
2816 s->gr_index = val;
2817 break;
2818 case 0x3cf:
2819 if (cirrus_hook_write_gr(s, s->gr_index, val))
2820 break;
2821 #ifdef DEBUG_VGA_REG
2822 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2823 #endif
2824 s->gr[s->gr_index] = val & gr_mask[s->gr_index];
2825 break;
2826 case 0x3b4:
2827 case 0x3d4:
2828 s->cr_index = val;
2829 break;
2830 case 0x3b5:
2831 case 0x3d5:
2832 if (cirrus_hook_write_cr(s, s->cr_index, val))
2833 break;
2834 #ifdef DEBUG_VGA_REG
2835 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2836 #endif
2837 /* handle CR0-7 protection */
2838 if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) {
2839 /* can always write bit 4 of CR7 */
2840 if (s->cr_index == 7)
2841 s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
2842 return;
2843 }
2844 switch (s->cr_index) {
2845 case 0x01: /* horizontal display end */
2846 case 0x07:
2847 case 0x09:
2848 case 0x0c:
2849 case 0x0d:
2850 case 0x12: /* vertical display end */
2851 s->cr[s->cr_index] = val;
2852 break;
2853
2854 default:
2855 s->cr[s->cr_index] = val;
2856 break;
2857 }
2858 break;
2859 case 0x3ba:
2860 case 0x3da:
2861 s->fcr = val & 0x10;
2862 break;
2863 }
2864 }
2865
2866 /***************************************
2867 *
2868 * memory-mapped I/O access
2869 *
2870 ***************************************/
2871
2872 static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2873 {
2874 CirrusVGAState *s = (CirrusVGAState *) opaque;
2875
2876 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2877
2878 if (addr >= 0x100) {
2879 return cirrus_mmio_blt_read(s, addr - 0x100);
2880 } else {
2881 return vga_ioport_read(s, addr + 0x3c0);
2882 }
2883 }
2884
2885 static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2886 {
2887 uint32_t v;
2888 #ifdef TARGET_WORDS_BIGENDIAN
2889 v = cirrus_mmio_readb(opaque, addr) << 8;
2890 v |= cirrus_mmio_readb(opaque, addr + 1);
2891 #else
2892 v = cirrus_mmio_readb(opaque, addr);
2893 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2894 #endif
2895 return v;
2896 }
2897
2898 static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2899 {
2900 uint32_t v;
2901 #ifdef TARGET_WORDS_BIGENDIAN
2902 v = cirrus_mmio_readb(opaque, addr) << 24;
2903 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2904 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2905 v |= cirrus_mmio_readb(opaque, addr + 3);
2906 #else
2907 v = cirrus_mmio_readb(opaque, addr);
2908 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2909 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2910 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2911 #endif
2912 return v;
2913 }
2914
2915 static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2916 uint32_t val)
2917 {
2918 CirrusVGAState *s = (CirrusVGAState *) opaque;
2919
2920 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2921
2922 if (addr >= 0x100) {
2923 cirrus_mmio_blt_write(s, addr - 0x100, val);
2924 } else {
2925 vga_ioport_write(s, addr + 0x3c0, val);
2926 }
2927 }
2928
2929 static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2930 uint32_t val)
2931 {
2932 #ifdef TARGET_WORDS_BIGENDIAN
2933 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2934 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2935 #else
2936 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2937 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2938 #endif
2939 }
2940
2941 static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
2942 uint32_t val)
2943 {
2944 #ifdef TARGET_WORDS_BIGENDIAN
2945 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
2946 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2947 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2948 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
2949 #else
2950 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2951 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2952 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2953 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2954 #endif
2955 }
2956
2957
2958 static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
2959 cirrus_mmio_readb,
2960 cirrus_mmio_readw,
2961 cirrus_mmio_readl,
2962 };
2963
2964 static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
2965 cirrus_mmio_writeb,
2966 cirrus_mmio_writew,
2967 cirrus_mmio_writel,
2968 };
2969
2970 /* load/save state */
2971
2972 static void cirrus_vga_save(QEMUFile *f, void *opaque)
2973 {
2974 CirrusVGAState *s = opaque;
2975
2976 if (s->pci_dev)
2977 pci_device_save(s->pci_dev, f);
2978
2979 qemu_put_be32s(f, &s->latch);
2980 qemu_put_8s(f, &s->sr_index);
2981 qemu_put_buffer(f, s->sr, 256);
2982 qemu_put_8s(f, &s->gr_index);
2983 qemu_put_8s(f, &s->cirrus_shadow_gr0);
2984 qemu_put_8s(f, &s->cirrus_shadow_gr1);
2985 qemu_put_buffer(f, s->gr + 2, 254);
2986 qemu_put_8s(f, &s->ar_index);
2987 qemu_put_buffer(f, s->ar, 21);
2988 qemu_put_be32s(f, &s->ar_flip_flop);
2989 qemu_put_8s(f, &s->cr_index);
2990 qemu_put_buffer(f, s->cr, 256);
2991 qemu_put_8s(f, &s->msr);
2992 qemu_put_8s(f, &s->fcr);
2993 qemu_put_8s(f, &s->st00);
2994 qemu_put_8s(f, &s->st01);
2995
2996 qemu_put_8s(f, &s->dac_state);
2997 qemu_put_8s(f, &s->dac_sub_index);
2998 qemu_put_8s(f, &s->dac_read_index);
2999 qemu_put_8s(f, &s->dac_write_index);
3000 qemu_put_buffer(f, s->dac_cache, 3);
3001 qemu_put_buffer(f, s->palette, 768);
3002
3003 qemu_put_be32s(f, &s->bank_offset);
3004
3005 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
3006 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
3007
3008 qemu_put_be32s(f, &s->hw_cursor_x);
3009 qemu_put_be32s(f, &s->hw_cursor_y);
3010 /* XXX: we do not save the bitblt state - we assume we do not save
3011 the state when the blitter is active */
3012 }
3013
3014 static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
3015 {
3016 CirrusVGAState *s = opaque;
3017 int ret;
3018
3019 if (version_id > 2)
3020 return -EINVAL;
3021
3022 if (s->pci_dev && version_id >= 2) {
3023 ret = pci_device_load(s->pci_dev, f);
3024 if (ret < 0)
3025 return ret;
3026 }
3027
3028 qemu_get_be32s(f, &s->latch);
3029 qemu_get_8s(f, &s->sr_index);
3030 qemu_get_buffer(f, s->sr, 256);
3031 qemu_get_8s(f, &s->gr_index);
3032 qemu_get_8s(f, &s->cirrus_shadow_gr0);
3033 qemu_get_8s(f, &s->cirrus_shadow_gr1);
3034 s->gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
3035 s->gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
3036 qemu_get_buffer(f, s->gr + 2, 254);
3037 qemu_get_8s(f, &s->ar_index);
3038 qemu_get_buffer(f, s->ar, 21);
3039 qemu_get_be32s(f, &s->ar_flip_flop);
3040 qemu_get_8s(f, &s->cr_index);
3041 qemu_get_buffer(f, s->cr, 256);
3042 qemu_get_8s(f, &s->msr);
3043 qemu_get_8s(f, &s->fcr);
3044 qemu_get_8s(f, &s->st00);
3045 qemu_get_8s(f, &s->st01);
3046
3047 qemu_get_8s(f, &s->dac_state);
3048 qemu_get_8s(f, &s->dac_sub_index);
3049 qemu_get_8s(f, &s->dac_read_index);
3050 qemu_get_8s(f, &s->dac_write_index);
3051 qemu_get_buffer(f, s->dac_cache, 3);
3052 qemu_get_buffer(f, s->palette, 768);
3053
3054 qemu_get_be32s(f, &s->bank_offset);
3055
3056 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
3057 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
3058
3059 qemu_get_be32s(f, &s->hw_cursor_x);
3060 qemu_get_be32s(f, &s->hw_cursor_y);
3061
3062 /* force refresh */
3063 s->graphic_mode = -1;
3064 cirrus_update_bank_ptr(s, 0);
3065 cirrus_update_bank_ptr(s, 1);
3066 return 0;
3067 }
3068
3069 /***************************************
3070 *
3071 * initialize
3072 *
3073 ***************************************/
3074
3075 static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
3076 {
3077 int vga_io_memory, i;
3078 static int inited;
3079
3080 if (!inited) {
3081 inited = 1;
3082 for(i = 0;i < 256; i++)
3083 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
3084 rop_to_index[CIRRUS_ROP_0] = 0;
3085 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
3086 rop_to_index[CIRRUS_ROP_NOP] = 2;
3087 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
3088 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
3089 rop_to_index[CIRRUS_ROP_SRC] = 5;
3090 rop_to_index[CIRRUS_ROP_1] = 6;
3091 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
3092 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
3093 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
3094 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
3095 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
3096 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
3097 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
3098 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
3099 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
3100 }
3101
3102 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
3103
3104 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
3105 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
3106 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
3107 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
3108
3109 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
3110
3111 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
3112 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
3113 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
3114 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
3115
3116 vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
3117 cirrus_vga_mem_write, s);
3118 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
3119 vga_io_memory);
3120
3121 s->sr[0x06] = 0x0f;
3122 if (device_id == CIRRUS_ID_CLGD5446) {
3123 /* 4MB 64 bit memory config, always PCI */
3124 s->sr[0x1F] = 0x2d; // MemClock
3125 s->gr[0x18] = 0x0f; // fastest memory configuration
3126 #if 1
3127 s->sr[0x0f] = 0x98;
3128 s->sr[0x17] = 0x20;
3129 s->sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
3130 s->real_vram_size = 4096 * 1024;
3131 #else
3132 s->sr[0x0f] = 0x18;
3133 s->sr[0x17] = 0x20;
3134 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3135 s->real_vram_size = 2048 * 1024;
3136 #endif
3137 } else {
3138 s->sr[0x1F] = 0x22; // MemClock
3139 s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
3140 if (is_pci)
3141 s->sr[0x17] = CIRRUS_BUSTYPE_PCI;
3142 else
3143 s->sr[0x17] = CIRRUS_BUSTYPE_ISA;
3144 s->real_vram_size = 2048 * 1024;
3145 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
3146 }
3147 s->cr[0x27] = device_id;
3148
3149 /* Win2K seems to assume that the pattern buffer is at 0xff
3150 initially ! */
3151 memset(s->vram_ptr, 0xff, s->real_vram_size);
3152
3153 s->cirrus_hidden_dac_lockindex = 5;
3154 s->cirrus_hidden_dac_data = 0;
3155
3156 /* I/O handler for LFB */
3157 s->cirrus_linear_io_addr =
3158 cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write,
3159 s);
3160 s->cirrus_linear_write = cpu_get_io_memory_write(s->cirrus_linear_io_addr);
3161
3162 /* I/O handler for LFB */
3163 s->cirrus_linear_bitblt_io_addr =
3164 cpu_register_io_memory(0, cirrus_linear_bitblt_read, cirrus_linear_bitblt_write,
3165 s);
3166
3167 /* I/O handler for memory-mapped I/O */
3168 s->cirrus_mmio_io_addr =
3169 cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
3170
3171 /* XXX: s->vram_size must be a power of two */
3172 s->cirrus_addr_mask = s->real_vram_size - 1;
3173 s->linear_mmio_mask = s->real_vram_size - 256;
3174
3175 s->get_bpp = cirrus_get_bpp;
3176 s->get_offsets = cirrus_get_offsets;
3177 s->get_resolution = cirrus_get_resolution;
3178 s->cursor_invalidate = cirrus_cursor_invalidate;
3179 s->cursor_draw_line = cirrus_cursor_draw_line;
3180
3181 register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
3182 }
3183
3184 /***************************************
3185 *
3186 * ISA bus support
3187 *
3188 ***************************************/
3189
3190 void isa_cirrus_vga_init(DisplayState *ds, uint8_t *vga_ram_base,
3191 unsigned long vga_ram_offset, int vga_ram_size)
3192 {
3193 CirrusVGAState *s;
3194
3195 s = qemu_mallocz(sizeof(CirrusVGAState));
3196
3197 vga_common_init((VGAState *)s,
3198 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
3199 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
3200 /* XXX ISA-LFB support */
3201 }
3202
3203 /***************************************
3204 *
3205 * PCI bus support
3206 *
3207 ***************************************/
3208
3209 static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3210 uint32_t addr, uint32_t size, int type)
3211 {
3212 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3213
3214 /* XXX: add byte swapping apertures */
3215 cpu_register_physical_memory(addr, s->vram_size,
3216 s->cirrus_linear_io_addr);
3217 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3218 s->cirrus_linear_bitblt_io_addr);
3219 }
3220
3221 static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3222 uint32_t addr, uint32_t size, int type)
3223 {
3224 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3225
3226 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3227 s->cirrus_mmio_io_addr);
3228 }
3229
3230 void pci_cirrus_vga_init(PCIBus *bus, DisplayState *ds, uint8_t *vga_ram_base,
3231 unsigned long vga_ram_offset, int vga_ram_size)
3232 {
3233 PCICirrusVGAState *d;
3234 uint8_t *pci_conf;
3235 CirrusVGAState *s;
3236 int device_id;
3237
3238 device_id = CIRRUS_ID_CLGD5446;
3239
3240 /* setup PCI configuration registers */
3241 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
3242 sizeof(PCICirrusVGAState),
3243 -1, NULL, NULL);
3244 pci_conf = d->dev.config;
3245 pci_conf[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS & 0xff);
3246 pci_conf[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS >> 8);
3247 pci_conf[0x02] = (uint8_t) (device_id & 0xff);
3248 pci_conf[0x03] = (uint8_t) (device_id >> 8);
3249 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3250 pci_conf[0x0a] = PCI_CLASS_SUB_VGA;
3251 pci_conf[0x0b] = PCI_CLASS_BASE_DISPLAY;
3252 pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
3253
3254 /* setup VGA */
3255 s = &d->cirrus_vga;
3256 vga_common_init((VGAState *)s,
3257 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
3258 cirrus_init_common(s, device_id, 1);
3259
3260 graphic_console_init(s->ds, s->update, s->invalidate, s->screen_dump, s);
3261
3262 s->pci_dev = (PCIDevice *)d;
3263
3264 /* setup memory space */
3265 /* memory #0 LFB */
3266 /* memory #1 memory-mapped I/O */
3267 /* XXX: s->vram_size must be a power of two */
3268 pci_register_io_region((PCIDevice *)d, 0, 0x2000000,
3269 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
3270 if (device_id == CIRRUS_ID_CLGD5446) {
3271 pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3272 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3273 }
3274 /* XXX: ROM BIOS */
3275 }
Samsung s3c2440 and arm920t support for the mini2440 dev board