2 * QEMU Cirrus CLGD 54xx VGA Emulator.
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
34 * - add support for WRITEMASK (GR2F)
35 * - optimize linear mappings
36 * - optimize bitblt functions
39 //#define DEBUG_CIRRUS
40 //#define DEBUG_BITBLT
42 /***************************************
46 ***************************************/
48 #define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
51 #define CIRRUS_ID_CLGD5422 (0x23<<2)
52 #define CIRRUS_ID_CLGD5426 (0x24<<2)
53 #define CIRRUS_ID_CLGD5424 (0x25<<2)
54 #define CIRRUS_ID_CLGD5428 (0x26<<2)
55 #define CIRRUS_ID_CLGD5430 (0x28<<2)
56 #define CIRRUS_ID_CLGD5434 (0x2A<<2)
57 #define CIRRUS_ID_CLGD5436 (0x2B<<2)
58 #define CIRRUS_ID_CLGD5446 (0x2E<<2)
61 #define CIRRUS_SR7_BPP_VGA 0x00
62 #define CIRRUS_SR7_BPP_SVGA 0x01
63 #define CIRRUS_SR7_BPP_MASK 0x0e
64 #define CIRRUS_SR7_BPP_8 0x00
65 #define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
66 #define CIRRUS_SR7_BPP_24 0x04
67 #define CIRRUS_SR7_BPP_16 0x06
68 #define CIRRUS_SR7_BPP_32 0x08
69 #define CIRRUS_SR7_ISAADDR_MASK 0xe0
72 #define CIRRUS_MEMSIZE_512k 0x08
73 #define CIRRUS_MEMSIZE_1M 0x10
74 #define CIRRUS_MEMSIZE_2M 0x18
75 #define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
78 #define CIRRUS_CURSOR_SHOW 0x01
79 #define CIRRUS_CURSOR_HIDDENPEL 0x02
80 #define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
83 #define CIRRUS_BUSTYPE_VLBFAST 0x10
84 #define CIRRUS_BUSTYPE_PCI 0x20
85 #define CIRRUS_BUSTYPE_VLBSLOW 0x30
86 #define CIRRUS_BUSTYPE_ISA 0x38
87 #define CIRRUS_MMIO_ENABLE 0x04
88 #define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
89 #define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
92 #define CIRRUS_BANKING_DUAL 0x01
93 #define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
96 #define CIRRUS_BLTMODE_BACKWARDS 0x01
97 #define CIRRUS_BLTMODE_MEMSYSDEST 0x02
98 #define CIRRUS_BLTMODE_MEMSYSSRC 0x04
99 #define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
100 #define CIRRUS_BLTMODE_PATTERNCOPY 0x40
101 #define CIRRUS_BLTMODE_COLOREXPAND 0x80
102 #define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
103 #define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
104 #define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
105 #define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
106 #define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
109 #define CIRRUS_BLT_BUSY 0x01
110 #define CIRRUS_BLT_START 0x02
111 #define CIRRUS_BLT_RESET 0x04
112 #define CIRRUS_BLT_FIFOUSED 0x10
113 #define CIRRUS_BLT_AUTOSTART 0x80
116 #define CIRRUS_ROP_0 0x00
117 #define CIRRUS_ROP_SRC_AND_DST 0x05
118 #define CIRRUS_ROP_NOP 0x06
119 #define CIRRUS_ROP_SRC_AND_NOTDST 0x09
120 #define CIRRUS_ROP_NOTDST 0x0b
121 #define CIRRUS_ROP_SRC 0x0d
122 #define CIRRUS_ROP_1 0x0e
123 #define CIRRUS_ROP_NOTSRC_AND_DST 0x50
124 #define CIRRUS_ROP_SRC_XOR_DST 0x59
125 #define CIRRUS_ROP_SRC_OR_DST 0x6d
126 #define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
127 #define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
128 #define CIRRUS_ROP_SRC_OR_NOTDST 0xad
129 #define CIRRUS_ROP_NOTSRC 0xd0
130 #define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
131 #define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
133 #define CIRRUS_ROP_NOP_INDEX 2
134 #define CIRRUS_ROP_SRC_INDEX 5
137 #define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
138 #define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
139 #define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
142 #define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
143 #define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
144 #define CIRRUS_MMIO_BLTWIDTH 0x08 // word
145 #define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
146 #define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
147 #define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
148 #define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
149 #define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
150 #define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
151 #define CIRRUS_MMIO_BLTMODE 0x18 // byte
152 #define CIRRUS_MMIO_BLTROP 0x1a // byte
153 #define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
154 #define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
155 #define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
156 #define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
157 #define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
158 #define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
159 #define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
160 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
161 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
162 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
163 #define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
164 #define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
165 #define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
166 #define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
167 #define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
168 #define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
169 #define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
170 #define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
172 // PCI 0x00: vendor, 0x02: device
173 #define PCI_VENDOR_CIRRUS 0x1013
174 #define PCI_DEVICE_CLGD5462 0x00d0
175 #define PCI_DEVICE_CLGD5465 0x00d6
177 // PCI 0x04: command(word), 0x06(word): status
178 #define PCI_COMMAND_IOACCESS 0x0001
179 #define PCI_COMMAND_MEMACCESS 0x0002
180 #define PCI_COMMAND_BUSMASTER 0x0004
181 #define PCI_COMMAND_SPECIALCYCLE 0x0008
182 #define PCI_COMMAND_MEMWRITEINVALID 0x0010
183 #define PCI_COMMAND_PALETTESNOOPING 0x0020
184 #define PCI_COMMAND_PARITYDETECTION 0x0040
185 #define PCI_COMMAND_ADDRESSDATASTEPPING 0x0080
186 #define PCI_COMMAND_SERR 0x0100
187 #define PCI_COMMAND_BACKTOBACKTRANS 0x0200
188 // PCI 0x08, 0xff000000 (0x09-0x0b:class,0x08:rev)
189 #define PCI_CLASS_BASE_DISPLAY 0x03
190 // PCI 0x08, 0x00ff0000
191 #define PCI_CLASS_SUB_VGA 0x00
192 // PCI 0x0c, 0x00ff0000 (0x0c:cacheline,0x0d:latency,0x0e:headertype,0x0f:Built-in self test)
193 #define PCI_CLASS_HEADERTYPE_00h 0x00
194 // 0x10-0x3f (headertype 00h)
195 // PCI 0x10,0x14,0x18,0x1c,0x20,0x24: base address mapping registers
196 // 0x10: MEMBASE, 0x14: IOBASE(hard-coded in XFree86 3.x)
197 #define PCI_MAP_MEM 0x0
198 #define PCI_MAP_IO 0x1
199 #define PCI_MAP_MEM_ADDR_MASK (~0xf)
200 #define PCI_MAP_IO_ADDR_MASK (~0x3)
201 #define PCI_MAP_MEMFLAGS_32BIT 0x0
202 #define PCI_MAP_MEMFLAGS_32BIT_1M 0x1
203 #define PCI_MAP_MEMFLAGS_64BIT 0x4
204 #define PCI_MAP_MEMFLAGS_CACHEABLE 0x8
205 // PCI 0x28: cardbus CIS pointer
206 // PCI 0x2c: subsystem vendor id, 0x2e: subsystem id
207 // PCI 0x30: expansion ROM base address
208 #define PCI_ROMBIOS_ENABLED 0x1
209 // PCI 0x34: 0xffffff00=reserved, 0x000000ff=capabilities pointer
210 // PCI 0x38: reserved
211 // PCI 0x3c: 0x3c=int-line, 0x3d=int-pin, 0x3e=min-gnt, 0x3f=maax-lat
213 #define CIRRUS_PNPMMIO_SIZE 0x1000
216 /* I/O and memory hook */
217 #define CIRRUS_HOOK_NOT_HANDLED 0
218 #define CIRRUS_HOOK_HANDLED 1
220 struct CirrusVGAState
;
221 typedef void (*cirrus_bitblt_rop_t
) (struct CirrusVGAState
*s
,
222 uint8_t * dst
, const uint8_t * src
,
223 int dstpitch
, int srcpitch
,
224 int bltwidth
, int bltheight
);
225 typedef void (*cirrus_fill_t
)(struct CirrusVGAState
*s
,
226 uint8_t *dst
, int dst_pitch
, int width
, int height
);
228 typedef struct CirrusVGAState
{
231 int cirrus_linear_io_addr
;
232 int cirrus_linear_bitblt_io_addr
;
233 int cirrus_mmio_io_addr
;
234 uint32_t cirrus_addr_mask
;
235 uint32_t linear_mmio_mask
;
236 uint8_t cirrus_shadow_gr0
;
237 uint8_t cirrus_shadow_gr1
;
238 uint8_t cirrus_hidden_dac_lockindex
;
239 uint8_t cirrus_hidden_dac_data
;
240 uint32_t cirrus_bank_base
[2];
241 uint32_t cirrus_bank_limit
[2];
242 uint8_t cirrus_hidden_palette
[48];
243 uint32_t hw_cursor_x
;
244 uint32_t hw_cursor_y
;
245 int cirrus_blt_pixelwidth
;
246 int cirrus_blt_width
;
247 int cirrus_blt_height
;
248 int cirrus_blt_dstpitch
;
249 int cirrus_blt_srcpitch
;
250 uint32_t cirrus_blt_fgcol
;
251 uint32_t cirrus_blt_bgcol
;
252 uint32_t cirrus_blt_dstaddr
;
253 uint32_t cirrus_blt_srcaddr
;
254 uint8_t cirrus_blt_mode
;
255 uint8_t cirrus_blt_modeext
;
256 cirrus_bitblt_rop_t cirrus_rop
;
257 #define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
258 uint8_t cirrus_bltbuf
[CIRRUS_BLTBUFSIZE
];
259 uint8_t *cirrus_srcptr
;
260 uint8_t *cirrus_srcptr_end
;
261 uint32_t cirrus_srccounter
;
262 uint8_t *cirrus_dstptr
;
263 uint8_t *cirrus_dstptr_end
;
264 uint32_t cirrus_dstcounter
;
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 */
274 typedef struct PCICirrusVGAState
{
276 CirrusVGAState cirrus_vga
;
279 static uint8_t rop_to_index
[256];
281 /***************************************
285 ***************************************/
288 static void cirrus_bitblt_reset(CirrusVGAState
* s
);
290 /***************************************
294 ***************************************/
296 static void cirrus_bitblt_rop_nop(CirrusVGAState
*s
,
297 uint8_t *dst
,const uint8_t *src
,
298 int dstpitch
,int srcpitch
,
299 int bltwidth
,int bltheight
)
303 static void cirrus_bitblt_fill_nop(CirrusVGAState
*s
,
305 int dstpitch
, int bltwidth
,int bltheight
)
310 #define ROP_OP(d, s) d = 0
311 #include "cirrus_vga_rop.h"
313 #define ROP_NAME src_and_dst
314 #define ROP_OP(d, s) d = (s) & (d)
315 #include "cirrus_vga_rop.h"
317 #define ROP_NAME src_and_notdst
318 #define ROP_OP(d, s) d = (s) & (~(d))
319 #include "cirrus_vga_rop.h"
321 #define ROP_NAME notdst
322 #define ROP_OP(d, s) d = ~(d)
323 #include "cirrus_vga_rop.h"
326 #define ROP_OP(d, s) d = s
327 #include "cirrus_vga_rop.h"
330 #define ROP_OP(d, s) d = ~0
331 #include "cirrus_vga_rop.h"
333 #define ROP_NAME notsrc_and_dst
334 #define ROP_OP(d, s) d = (~(s)) & (d)
335 #include "cirrus_vga_rop.h"
337 #define ROP_NAME src_xor_dst
338 #define ROP_OP(d, s) d = (s) ^ (d)
339 #include "cirrus_vga_rop.h"
341 #define ROP_NAME src_or_dst
342 #define ROP_OP(d, s) d = (s) | (d)
343 #include "cirrus_vga_rop.h"
345 #define ROP_NAME notsrc_or_notdst
346 #define ROP_OP(d, s) d = (~(s)) | (~(d))
347 #include "cirrus_vga_rop.h"
349 #define ROP_NAME src_notxor_dst
350 #define ROP_OP(d, s) d = ~((s) ^ (d))
351 #include "cirrus_vga_rop.h"
353 #define ROP_NAME src_or_notdst
354 #define ROP_OP(d, s) d = (s) | (~(d))
355 #include "cirrus_vga_rop.h"
357 #define ROP_NAME notsrc
358 #define ROP_OP(d, s) d = (~(s))
359 #include "cirrus_vga_rop.h"
361 #define ROP_NAME notsrc_or_dst
362 #define ROP_OP(d, s) d = (~(s)) | (d)
363 #include "cirrus_vga_rop.h"
365 #define ROP_NAME notsrc_and_notdst
366 #define ROP_OP(d, s) d = (~(s)) & (~(d))
367 #include "cirrus_vga_rop.h"
369 static const cirrus_bitblt_rop_t cirrus_fwd_rop
[16] = {
370 cirrus_bitblt_rop_fwd_0
,
371 cirrus_bitblt_rop_fwd_src_and_dst
,
372 cirrus_bitblt_rop_nop
,
373 cirrus_bitblt_rop_fwd_src_and_notdst
,
374 cirrus_bitblt_rop_fwd_notdst
,
375 cirrus_bitblt_rop_fwd_src
,
376 cirrus_bitblt_rop_fwd_1
,
377 cirrus_bitblt_rop_fwd_notsrc_and_dst
,
378 cirrus_bitblt_rop_fwd_src_xor_dst
,
379 cirrus_bitblt_rop_fwd_src_or_dst
,
380 cirrus_bitblt_rop_fwd_notsrc_or_notdst
,
381 cirrus_bitblt_rop_fwd_src_notxor_dst
,
382 cirrus_bitblt_rop_fwd_src_or_notdst
,
383 cirrus_bitblt_rop_fwd_notsrc
,
384 cirrus_bitblt_rop_fwd_notsrc_or_dst
,
385 cirrus_bitblt_rop_fwd_notsrc_and_notdst
,
388 static const cirrus_bitblt_rop_t cirrus_bkwd_rop
[16] = {
389 cirrus_bitblt_rop_bkwd_0
,
390 cirrus_bitblt_rop_bkwd_src_and_dst
,
391 cirrus_bitblt_rop_nop
,
392 cirrus_bitblt_rop_bkwd_src_and_notdst
,
393 cirrus_bitblt_rop_bkwd_notdst
,
394 cirrus_bitblt_rop_bkwd_src
,
395 cirrus_bitblt_rop_bkwd_1
,
396 cirrus_bitblt_rop_bkwd_notsrc_and_dst
,
397 cirrus_bitblt_rop_bkwd_src_xor_dst
,
398 cirrus_bitblt_rop_bkwd_src_or_dst
,
399 cirrus_bitblt_rop_bkwd_notsrc_or_notdst
,
400 cirrus_bitblt_rop_bkwd_src_notxor_dst
,
401 cirrus_bitblt_rop_bkwd_src_or_notdst
,
402 cirrus_bitblt_rop_bkwd_notsrc
,
403 cirrus_bitblt_rop_bkwd_notsrc_or_dst
,
404 cirrus_bitblt_rop_bkwd_notsrc_and_notdst
,
407 #define ROP2(name) {\
414 #define ROP_NOP2(func) {\
421 static const cirrus_bitblt_rop_t cirrus_patternfill
[16][4] = {
422 ROP2(cirrus_patternfill_0
),
423 ROP2(cirrus_patternfill_src_and_dst
),
424 ROP_NOP2(cirrus_bitblt_rop_nop
),
425 ROP2(cirrus_patternfill_src_and_notdst
),
426 ROP2(cirrus_patternfill_notdst
),
427 ROP2(cirrus_patternfill_src
),
428 ROP2(cirrus_patternfill_1
),
429 ROP2(cirrus_patternfill_notsrc_and_dst
),
430 ROP2(cirrus_patternfill_src_xor_dst
),
431 ROP2(cirrus_patternfill_src_or_dst
),
432 ROP2(cirrus_patternfill_notsrc_or_notdst
),
433 ROP2(cirrus_patternfill_src_notxor_dst
),
434 ROP2(cirrus_patternfill_src_or_notdst
),
435 ROP2(cirrus_patternfill_notsrc
),
436 ROP2(cirrus_patternfill_notsrc_or_dst
),
437 ROP2(cirrus_patternfill_notsrc_and_notdst
),
440 static const cirrus_bitblt_rop_t cirrus_colorexpand_transp
[16][4] = {
441 ROP2(cirrus_colorexpand_transp_0
),
442 ROP2(cirrus_colorexpand_transp_src_and_dst
),
443 ROP_NOP2(cirrus_bitblt_rop_nop
),
444 ROP2(cirrus_colorexpand_transp_src_and_notdst
),
445 ROP2(cirrus_colorexpand_transp_notdst
),
446 ROP2(cirrus_colorexpand_transp_src
),
447 ROP2(cirrus_colorexpand_transp_1
),
448 ROP2(cirrus_colorexpand_transp_notsrc_and_dst
),
449 ROP2(cirrus_colorexpand_transp_src_xor_dst
),
450 ROP2(cirrus_colorexpand_transp_src_or_dst
),
451 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst
),
452 ROP2(cirrus_colorexpand_transp_src_notxor_dst
),
453 ROP2(cirrus_colorexpand_transp_src_or_notdst
),
454 ROP2(cirrus_colorexpand_transp_notsrc
),
455 ROP2(cirrus_colorexpand_transp_notsrc_or_dst
),
456 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst
),
459 static const cirrus_bitblt_rop_t cirrus_colorexpand
[16][4] = {
460 ROP2(cirrus_colorexpand_0
),
461 ROP2(cirrus_colorexpand_src_and_dst
),
462 ROP_NOP2(cirrus_bitblt_rop_nop
),
463 ROP2(cirrus_colorexpand_src_and_notdst
),
464 ROP2(cirrus_colorexpand_notdst
),
465 ROP2(cirrus_colorexpand_src
),
466 ROP2(cirrus_colorexpand_1
),
467 ROP2(cirrus_colorexpand_notsrc_and_dst
),
468 ROP2(cirrus_colorexpand_src_xor_dst
),
469 ROP2(cirrus_colorexpand_src_or_dst
),
470 ROP2(cirrus_colorexpand_notsrc_or_notdst
),
471 ROP2(cirrus_colorexpand_src_notxor_dst
),
472 ROP2(cirrus_colorexpand_src_or_notdst
),
473 ROP2(cirrus_colorexpand_notsrc
),
474 ROP2(cirrus_colorexpand_notsrc_or_dst
),
475 ROP2(cirrus_colorexpand_notsrc_and_notdst
),
478 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp
[16][4] = {
479 ROP2(cirrus_colorexpand_pattern_transp_0
),
480 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst
),
481 ROP_NOP2(cirrus_bitblt_rop_nop
),
482 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst
),
483 ROP2(cirrus_colorexpand_pattern_transp_notdst
),
484 ROP2(cirrus_colorexpand_pattern_transp_src
),
485 ROP2(cirrus_colorexpand_pattern_transp_1
),
486 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst
),
487 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst
),
488 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst
),
489 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst
),
490 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst
),
491 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst
),
492 ROP2(cirrus_colorexpand_pattern_transp_notsrc
),
493 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst
),
494 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst
),
497 static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern
[16][4] = {
498 ROP2(cirrus_colorexpand_pattern_0
),
499 ROP2(cirrus_colorexpand_pattern_src_and_dst
),
500 ROP_NOP2(cirrus_bitblt_rop_nop
),
501 ROP2(cirrus_colorexpand_pattern_src_and_notdst
),
502 ROP2(cirrus_colorexpand_pattern_notdst
),
503 ROP2(cirrus_colorexpand_pattern_src
),
504 ROP2(cirrus_colorexpand_pattern_1
),
505 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst
),
506 ROP2(cirrus_colorexpand_pattern_src_xor_dst
),
507 ROP2(cirrus_colorexpand_pattern_src_or_dst
),
508 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst
),
509 ROP2(cirrus_colorexpand_pattern_src_notxor_dst
),
510 ROP2(cirrus_colorexpand_pattern_src_or_notdst
),
511 ROP2(cirrus_colorexpand_pattern_notsrc
),
512 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst
),
513 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst
),
516 static const cirrus_fill_t cirrus_fill
[16][4] = {
518 ROP2(cirrus_fill_src_and_dst
),
519 ROP_NOP2(cirrus_bitblt_fill_nop
),
520 ROP2(cirrus_fill_src_and_notdst
),
521 ROP2(cirrus_fill_notdst
),
522 ROP2(cirrus_fill_src
),
524 ROP2(cirrus_fill_notsrc_and_dst
),
525 ROP2(cirrus_fill_src_xor_dst
),
526 ROP2(cirrus_fill_src_or_dst
),
527 ROP2(cirrus_fill_notsrc_or_notdst
),
528 ROP2(cirrus_fill_src_notxor_dst
),
529 ROP2(cirrus_fill_src_or_notdst
),
530 ROP2(cirrus_fill_notsrc
),
531 ROP2(cirrus_fill_notsrc_or_dst
),
532 ROP2(cirrus_fill_notsrc_and_notdst
),
535 static inline void cirrus_bitblt_fgcol(CirrusVGAState
*s
)
538 switch (s
->cirrus_blt_pixelwidth
) {
540 s
->cirrus_blt_fgcol
= s
->cirrus_shadow_gr1
;
543 color
= s
->cirrus_shadow_gr1
| (s
->gr
[0x11] << 8);
544 s
->cirrus_blt_fgcol
= le16_to_cpu(color
);
547 s
->cirrus_blt_fgcol
= s
->cirrus_shadow_gr1
|
548 (s
->gr
[0x11] << 8) | (s
->gr
[0x13] << 16);
552 color
= s
->cirrus_shadow_gr1
| (s
->gr
[0x11] << 8) |
553 (s
->gr
[0x13] << 16) | (s
->gr
[0x15] << 24);
554 s
->cirrus_blt_fgcol
= le32_to_cpu(color
);
559 static inline void cirrus_bitblt_bgcol(CirrusVGAState
*s
)
562 switch (s
->cirrus_blt_pixelwidth
) {
564 s
->cirrus_blt_bgcol
= s
->cirrus_shadow_gr0
;
567 color
= s
->cirrus_shadow_gr0
| (s
->gr
[0x10] << 8);
568 s
->cirrus_blt_bgcol
= le16_to_cpu(color
);
571 s
->cirrus_blt_bgcol
= s
->cirrus_shadow_gr0
|
572 (s
->gr
[0x10] << 8) | (s
->gr
[0x12] << 16);
576 color
= s
->cirrus_shadow_gr0
| (s
->gr
[0x10] << 8) |
577 (s
->gr
[0x12] << 16) | (s
->gr
[0x14] << 24);
578 s
->cirrus_blt_bgcol
= le32_to_cpu(color
);
583 static void cirrus_invalidate_region(CirrusVGAState
* s
, int off_begin
,
584 int off_pitch
, int bytesperline
,
591 for (y
= 0; y
< lines
; y
++) {
593 off_cur_end
= off_cur
+ bytesperline
;
594 off_cur
&= TARGET_PAGE_MASK
;
595 while (off_cur
< off_cur_end
) {
596 cpu_physical_memory_set_dirty(s
->vram_offset
+ off_cur
);
597 off_cur
+= TARGET_PAGE_SIZE
;
599 off_begin
+= off_pitch
;
603 static int cirrus_bitblt_common_patterncopy(CirrusVGAState
* s
,
608 dst
= s
->vram_ptr
+ s
->cirrus_blt_dstaddr
;
609 (*s
->cirrus_rop
) (s
, dst
, src
,
610 s
->cirrus_blt_dstpitch
, 0,
611 s
->cirrus_blt_width
, s
->cirrus_blt_height
);
612 cirrus_invalidate_region(s
, s
->cirrus_blt_dstaddr
,
613 s
->cirrus_blt_dstpitch
, s
->cirrus_blt_width
,
614 s
->cirrus_blt_height
);
620 static int cirrus_bitblt_solidfill(CirrusVGAState
*s
, int blt_rop
)
622 cirrus_fill_t rop_func
;
624 rop_func
= cirrus_fill
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
625 rop_func(s
, s
->vram_ptr
+ s
->cirrus_blt_dstaddr
,
626 s
->cirrus_blt_dstpitch
,
627 s
->cirrus_blt_width
, s
->cirrus_blt_height
);
628 cirrus_invalidate_region(s
, s
->cirrus_blt_dstaddr
,
629 s
->cirrus_blt_dstpitch
, s
->cirrus_blt_width
,
630 s
->cirrus_blt_height
);
631 cirrus_bitblt_reset(s
);
635 /***************************************
637 * bitblt (video-to-video)
639 ***************************************/
641 static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState
* s
)
643 return cirrus_bitblt_common_patterncopy(s
,
645 (s
->cirrus_blt_srcaddr
& ~7));
648 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState
* s
)
650 (*s
->cirrus_rop
) (s
, s
->vram_ptr
+ s
->cirrus_blt_dstaddr
,
651 s
->vram_ptr
+ s
->cirrus_blt_srcaddr
,
652 s
->cirrus_blt_dstpitch
, s
->cirrus_blt_srcpitch
,
653 s
->cirrus_blt_width
, s
->cirrus_blt_height
);
654 cirrus_invalidate_region(s
, s
->cirrus_blt_dstaddr
,
655 s
->cirrus_blt_dstpitch
, s
->cirrus_blt_width
,
656 s
->cirrus_blt_height
);
660 /***************************************
662 * bitblt (cpu-to-video)
664 ***************************************/
666 static void cirrus_bitblt_cputovideo_next(CirrusVGAState
* s
)
671 if (s
->cirrus_srccounter
> 0) {
672 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_PATTERNCOPY
) {
673 cirrus_bitblt_common_patterncopy(s
, s
->cirrus_bltbuf
);
675 s
->cirrus_srccounter
= 0;
676 cirrus_bitblt_reset(s
);
678 /* at least one scan line */
680 (*s
->cirrus_rop
)(s
, s
->vram_ptr
+ s
->cirrus_blt_dstaddr
,
681 s
->cirrus_bltbuf
, 0, 0, s
->cirrus_blt_width
, 1);
682 cirrus_invalidate_region(s
, s
->cirrus_blt_dstaddr
, 0,
683 s
->cirrus_blt_width
, 1);
684 s
->cirrus_blt_dstaddr
+= s
->cirrus_blt_dstpitch
;
685 s
->cirrus_srccounter
-= s
->cirrus_blt_srcpitch
;
686 if (s
->cirrus_srccounter
<= 0)
688 /* more bytes than needed can be transfered because of
689 word alignment, so we keep them for the next line */
690 /* XXX: keep alignment to speed up transfer */
691 end_ptr
= s
->cirrus_bltbuf
+ s
->cirrus_blt_srcpitch
;
692 copy_count
= s
->cirrus_srcptr_end
- end_ptr
;
693 memmove(s
->cirrus_bltbuf
, end_ptr
, copy_count
);
694 s
->cirrus_srcptr
= s
->cirrus_bltbuf
+ copy_count
;
695 s
->cirrus_srcptr_end
= s
->cirrus_bltbuf
+ s
->cirrus_blt_srcpitch
;
696 } while (s
->cirrus_srcptr
>= s
->cirrus_srcptr_end
);
701 /***************************************
705 ***************************************/
707 static void cirrus_bitblt_reset(CirrusVGAState
* s
)
710 ~(CIRRUS_BLT_START
| CIRRUS_BLT_BUSY
| CIRRUS_BLT_FIFOUSED
);
711 s
->cirrus_srcptr
= &s
->cirrus_bltbuf
[0];
712 s
->cirrus_srcptr_end
= &s
->cirrus_bltbuf
[0];
713 s
->cirrus_srccounter
= 0;
714 s
->cirrus_dstptr
= &s
->cirrus_bltbuf
[0];
715 s
->cirrus_dstptr_end
= &s
->cirrus_bltbuf
[0];
716 s
->cirrus_dstcounter
= 0;
719 static int cirrus_bitblt_cputovideo(CirrusVGAState
* s
)
723 s
->cirrus_blt_mode
&= ~CIRRUS_BLTMODE_MEMSYSSRC
;
724 s
->cirrus_srcptr
= &s
->cirrus_bltbuf
[0];
725 s
->cirrus_srcptr_end
= &s
->cirrus_bltbuf
[0];
727 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_PATTERNCOPY
) {
728 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_COLOREXPAND
) {
729 s
->cirrus_blt_srcpitch
= 8;
731 /* XXX: check for 24 bpp */
732 s
->cirrus_blt_srcpitch
= 8 * 8 * s
->cirrus_blt_pixelwidth
;
734 s
->cirrus_srccounter
= s
->cirrus_blt_srcpitch
;
736 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_COLOREXPAND
) {
737 w
= s
->cirrus_blt_width
/ s
->cirrus_blt_pixelwidth
;
738 if (s
->cirrus_blt_modeext
& CIRRUS_BLTMODEEXT_DWORDGRANULARITY
)
739 s
->cirrus_blt_srcpitch
= ((w
+ 31) >> 5);
741 s
->cirrus_blt_srcpitch
= ((w
+ 7) >> 3);
743 s
->cirrus_blt_srcpitch
= s
->cirrus_blt_width
;
745 s
->cirrus_srccounter
= s
->cirrus_blt_srcpitch
* s
->cirrus_blt_height
;
747 s
->cirrus_srcptr
= s
->cirrus_bltbuf
;
748 s
->cirrus_srcptr_end
= s
->cirrus_bltbuf
+ s
->cirrus_blt_srcpitch
;
752 static int cirrus_bitblt_videotocpu(CirrusVGAState
* s
)
756 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
761 static int cirrus_bitblt_videotovideo(CirrusVGAState
* s
)
765 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_PATTERNCOPY
) {
766 ret
= cirrus_bitblt_videotovideo_patterncopy(s
);
768 ret
= cirrus_bitblt_videotovideo_copy(s
);
771 cirrus_bitblt_reset(s
);
775 static void cirrus_bitblt_start(CirrusVGAState
* s
)
779 s
->gr
[0x31] |= CIRRUS_BLT_BUSY
;
781 s
->cirrus_blt_width
= (s
->gr
[0x20] | (s
->gr
[0x21] << 8)) + 1;
782 s
->cirrus_blt_height
= (s
->gr
[0x22] | (s
->gr
[0x23] << 8)) + 1;
783 s
->cirrus_blt_dstpitch
= (s
->gr
[0x24] | (s
->gr
[0x25] << 8));
784 s
->cirrus_blt_srcpitch
= (s
->gr
[0x26] | (s
->gr
[0x27] << 8));
785 s
->cirrus_blt_dstaddr
=
786 (s
->gr
[0x28] | (s
->gr
[0x29] << 8) | (s
->gr
[0x2a] << 16));
787 s
->cirrus_blt_srcaddr
=
788 (s
->gr
[0x2c] | (s
->gr
[0x2d] << 8) | (s
->gr
[0x2e] << 16));
789 s
->cirrus_blt_mode
= s
->gr
[0x30];
790 s
->cirrus_blt_modeext
= s
->gr
[0x33];
791 blt_rop
= s
->gr
[0x32];
794 printf("rop=0x%02x mode=0x%02x modeext=0x%02x w=%d h=%d dpitch=%d spicth=%d daddr=0x%08x saddr=0x%08x writemask=0x%02x\n",
797 s
->cirrus_blt_modeext
,
799 s
->cirrus_blt_height
,
800 s
->cirrus_blt_dstpitch
,
801 s
->cirrus_blt_srcpitch
,
802 s
->cirrus_blt_dstaddr
,
803 s
->cirrus_blt_srcaddr
,
807 switch (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_PIXELWIDTHMASK
) {
808 case CIRRUS_BLTMODE_PIXELWIDTH8
:
809 s
->cirrus_blt_pixelwidth
= 1;
811 case CIRRUS_BLTMODE_PIXELWIDTH16
:
812 s
->cirrus_blt_pixelwidth
= 2;
814 case CIRRUS_BLTMODE_PIXELWIDTH24
:
815 s
->cirrus_blt_pixelwidth
= 3;
817 case CIRRUS_BLTMODE_PIXELWIDTH32
:
818 s
->cirrus_blt_pixelwidth
= 4;
822 printf("cirrus: bitblt - pixel width is unknown\n");
826 s
->cirrus_blt_mode
&= ~CIRRUS_BLTMODE_PIXELWIDTHMASK
;
829 cirrus_blt_mode
& (CIRRUS_BLTMODE_MEMSYSSRC
|
830 CIRRUS_BLTMODE_MEMSYSDEST
))
831 == (CIRRUS_BLTMODE_MEMSYSSRC
| CIRRUS_BLTMODE_MEMSYSDEST
)) {
833 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
838 if ((s
->cirrus_blt_modeext
& CIRRUS_BLTMODEEXT_SOLIDFILL
) &&
839 (s
->cirrus_blt_mode
& (CIRRUS_BLTMODE_MEMSYSDEST
|
840 CIRRUS_BLTMODE_TRANSPARENTCOMP
|
841 CIRRUS_BLTMODE_PATTERNCOPY
|
842 CIRRUS_BLTMODE_COLOREXPAND
)) ==
843 (CIRRUS_BLTMODE_PATTERNCOPY
| CIRRUS_BLTMODE_COLOREXPAND
)) {
844 cirrus_bitblt_fgcol(s
);
845 cirrus_bitblt_solidfill(s
, blt_rop
);
847 if ((s
->cirrus_blt_mode
& (CIRRUS_BLTMODE_COLOREXPAND
|
848 CIRRUS_BLTMODE_PATTERNCOPY
)) ==
849 CIRRUS_BLTMODE_COLOREXPAND
) {
851 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_TRANSPARENTCOMP
) {
852 if (s
->cirrus_blt_modeext
& CIRRUS_BLTMODEEXT_COLOREXPINV
)
853 cirrus_bitblt_bgcol(s
);
855 cirrus_bitblt_fgcol(s
);
856 s
->cirrus_rop
= cirrus_colorexpand_transp
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
858 cirrus_bitblt_fgcol(s
);
859 cirrus_bitblt_bgcol(s
);
860 s
->cirrus_rop
= cirrus_colorexpand
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
862 } else if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_PATTERNCOPY
) {
863 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_COLOREXPAND
) {
864 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_TRANSPARENTCOMP
) {
865 if (s
->cirrus_blt_modeext
& CIRRUS_BLTMODEEXT_COLOREXPINV
)
866 cirrus_bitblt_bgcol(s
);
868 cirrus_bitblt_fgcol(s
);
869 s
->cirrus_rop
= cirrus_colorexpand_pattern_transp
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
871 cirrus_bitblt_fgcol(s
);
872 cirrus_bitblt_bgcol(s
);
873 s
->cirrus_rop
= cirrus_colorexpand_pattern
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
876 s
->cirrus_rop
= cirrus_patternfill
[rop_to_index
[blt_rop
]][s
->cirrus_blt_pixelwidth
- 1];
879 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_BACKWARDS
) {
880 s
->cirrus_blt_dstpitch
= -s
->cirrus_blt_dstpitch
;
881 s
->cirrus_blt_srcpitch
= -s
->cirrus_blt_srcpitch
;
882 s
->cirrus_rop
= cirrus_bkwd_rop
[rop_to_index
[blt_rop
]];
884 s
->cirrus_rop
= cirrus_fwd_rop
[rop_to_index
[blt_rop
]];
888 // setup bitblt engine.
889 if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_MEMSYSSRC
) {
890 if (!cirrus_bitblt_cputovideo(s
))
892 } else if (s
->cirrus_blt_mode
& CIRRUS_BLTMODE_MEMSYSDEST
) {
893 if (!cirrus_bitblt_videotocpu(s
))
896 if (!cirrus_bitblt_videotovideo(s
))
902 cirrus_bitblt_reset(s
);
905 static void cirrus_write_bitblt(CirrusVGAState
* s
, unsigned reg_value
)
909 old_value
= s
->gr
[0x31];
910 s
->gr
[0x31] = reg_value
;
912 if (((old_value
& CIRRUS_BLT_RESET
) != 0) &&
913 ((reg_value
& CIRRUS_BLT_RESET
) == 0)) {
914 cirrus_bitblt_reset(s
);
915 } else if (((old_value
& CIRRUS_BLT_START
) == 0) &&
916 ((reg_value
& CIRRUS_BLT_START
) != 0)) {
917 cirrus_bitblt_start(s
);
922 /***************************************
926 ***************************************/
928 static void cirrus_get_offsets(VGAState
*s1
,
929 uint32_t *pline_offset
,
930 uint32_t *pstart_addr
)
932 CirrusVGAState
* s
= (CirrusVGAState
*)s1
;
934 uint32_t line_offset
;
936 line_offset
= s
->cr
[0x13]
937 | ((s
->cr
[0x1b] & 0x10) << 4);
939 *pline_offset
= line_offset
;
941 start_addr
= (s
->cr
[0x0c] << 8)
943 | ((s
->cr
[0x1b] & 0x01) << 16)
944 | ((s
->cr
[0x1b] & 0x0c) << 15)
945 | ((s
->cr
[0x1d] & 0x80) << 12);
946 *pstart_addr
= start_addr
;
949 static uint32_t cirrus_get_bpp16_depth(CirrusVGAState
* s
)
953 switch (s
->cirrus_hidden_dac_data
& 0xf) {
956 break; /* Sierra HiColor */
959 break; /* XGA HiColor */
962 printf("cirrus: invalid DAC value %x in 16bpp\n",
963 (s
->cirrus_hidden_dac_data
& 0xf));
971 static int cirrus_get_bpp(VGAState
*s1
)
973 CirrusVGAState
* s
= (CirrusVGAState
*)s1
;
976 if ((s
->sr
[0x07] & 0x01) != 0) {
978 switch (s
->sr
[0x07] & CIRRUS_SR7_BPP_MASK
) {
979 case CIRRUS_SR7_BPP_8
:
982 case CIRRUS_SR7_BPP_16_DOUBLEVCLK
:
983 ret
= cirrus_get_bpp16_depth(s
);
985 case CIRRUS_SR7_BPP_24
:
988 case CIRRUS_SR7_BPP_16
:
989 ret
= cirrus_get_bpp16_depth(s
);
991 case CIRRUS_SR7_BPP_32
:
996 printf("cirrus: unknown bpp - sr7=%x\n", s
->sr
[0x7]);
1009 static void cirrus_get_resolution(VGAState
*s
, int *pwidth
, int *pheight
)
1013 width
= (s
->cr
[0x01] + 1) * 8;
1014 height
= s
->cr
[0x12] |
1015 ((s
->cr
[0x07] & 0x02) << 7) |
1016 ((s
->cr
[0x07] & 0x40) << 3);
1017 height
= (height
+ 1);
1018 /* interlace support */
1019 if (s
->cr
[0x1a] & 0x01)
1020 height
= height
* 2;
1025 /***************************************
1029 ***************************************/
1031 static void cirrus_update_bank_ptr(CirrusVGAState
* s
, unsigned bank_index
)
1036 if ((s
->gr
[0x0b] & 0x01) != 0) /* dual bank */
1037 offset
= s
->gr
[0x09 + bank_index
];
1038 else /* single bank */
1039 offset
= s
->gr
[0x09];
1041 if ((s
->gr
[0x0b] & 0x20) != 0)
1046 if (s
->vram_size
<= offset
)
1049 limit
= s
->vram_size
- offset
;
1051 if (((s
->gr
[0x0b] & 0x01) == 0) && (bank_index
!= 0)) {
1052 if (limit
> 0x8000) {
1061 s
->cirrus_bank_base
[bank_index
] = offset
;
1062 s
->cirrus_bank_limit
[bank_index
] = limit
;
1064 s
->cirrus_bank_base
[bank_index
] = 0;
1065 s
->cirrus_bank_limit
[bank_index
] = 0;
1069 /***************************************
1071 * I/O access between 0x3c4-0x3c5
1073 ***************************************/
1076 cirrus_hook_read_sr(CirrusVGAState
* s
, unsigned reg_index
, int *reg_value
)
1078 switch (reg_index
) {
1079 case 0x00: // Standard VGA
1080 case 0x01: // Standard VGA
1081 case 0x02: // Standard VGA
1082 case 0x03: // Standard VGA
1083 case 0x04: // Standard VGA
1084 return CIRRUS_HOOK_NOT_HANDLED
;
1085 case 0x06: // Unlock Cirrus extensions
1086 *reg_value
= s
->sr
[reg_index
];
1091 case 0x70: // Graphics Cursor X
1095 case 0xf0: // Graphics Cursor X
1096 *reg_value
= s
->sr
[0x10];
1101 case 0x71: // Graphics Cursor Y
1105 case 0xf1: // Graphics Cursor Y
1106 *reg_value
= s
->sr
[0x11];
1109 case 0x07: // Extended Sequencer Mode
1110 case 0x08: // EEPROM Control
1111 case 0x09: // Scratch Register 0
1112 case 0x0a: // Scratch Register 1
1113 case 0x0b: // VCLK 0
1114 case 0x0c: // VCLK 1
1115 case 0x0d: // VCLK 2
1116 case 0x0e: // VCLK 3
1117 case 0x0f: // DRAM Control
1118 case 0x12: // Graphics Cursor Attribute
1119 case 0x13: // Graphics Cursor Pattern Address
1120 case 0x14: // Scratch Register 2
1121 case 0x15: // Scratch Register 3
1122 case 0x16: // Performance Tuning Register
1123 case 0x17: // Configuration Readback and Extended Control
1124 case 0x18: // Signature Generator Control
1125 case 0x19: // Signal Generator Result
1126 case 0x1a: // Signal Generator Result
1127 case 0x1b: // VCLK 0 Denominator & Post
1128 case 0x1c: // VCLK 1 Denominator & Post
1129 case 0x1d: // VCLK 2 Denominator & Post
1130 case 0x1e: // VCLK 3 Denominator & Post
1131 case 0x1f: // BIOS Write Enable and MCLK select
1133 printf("cirrus: handled inport sr_index %02x\n", reg_index
);
1135 *reg_value
= s
->sr
[reg_index
];
1139 printf("cirrus: inport sr_index %02x\n", reg_index
);
1145 return CIRRUS_HOOK_HANDLED
;
1149 cirrus_hook_write_sr(CirrusVGAState
* s
, unsigned reg_index
, int reg_value
)
1151 switch (reg_index
) {
1152 case 0x00: // Standard VGA
1153 case 0x01: // Standard VGA
1154 case 0x02: // Standard VGA
1155 case 0x03: // Standard VGA
1156 case 0x04: // Standard VGA
1157 return CIRRUS_HOOK_NOT_HANDLED
;
1158 case 0x06: // Unlock Cirrus extensions
1160 if (reg_value
== 0x12) {
1161 s
->sr
[reg_index
] = 0x12;
1163 s
->sr
[reg_index
] = 0x0f;
1169 case 0x70: // Graphics Cursor X
1173 case 0xf0: // Graphics Cursor X
1174 s
->sr
[0x10] = reg_value
;
1175 s
->hw_cursor_x
= (reg_value
<< 3) | (reg_index
>> 5);
1180 case 0x71: // Graphics Cursor Y
1184 case 0xf1: // Graphics Cursor Y
1185 s
->sr
[0x11] = reg_value
;
1186 s
->hw_cursor_y
= (reg_value
<< 3) | (reg_index
>> 5);
1188 case 0x07: // Extended Sequencer Mode
1189 case 0x08: // EEPROM Control
1190 case 0x09: // Scratch Register 0
1191 case 0x0a: // Scratch Register 1
1192 case 0x0b: // VCLK 0
1193 case 0x0c: // VCLK 1
1194 case 0x0d: // VCLK 2
1195 case 0x0e: // VCLK 3
1196 case 0x0f: // DRAM Control
1197 case 0x12: // Graphics Cursor Attribute
1198 case 0x13: // Graphics Cursor Pattern Address
1199 case 0x14: // Scratch Register 2
1200 case 0x15: // Scratch Register 3
1201 case 0x16: // Performance Tuning Register
1202 case 0x17: // Configuration Readback and Extended Control
1203 case 0x18: // Signature Generator Control
1204 case 0x19: // Signature Generator Result
1205 case 0x1a: // Signature Generator Result
1206 case 0x1b: // VCLK 0 Denominator & Post
1207 case 0x1c: // VCLK 1 Denominator & Post
1208 case 0x1d: // VCLK 2 Denominator & Post
1209 case 0x1e: // VCLK 3 Denominator & Post
1210 case 0x1f: // BIOS Write Enable and MCLK select
1211 s
->sr
[reg_index
] = reg_value
;
1213 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1214 reg_index
, reg_value
);
1219 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index
,
1225 return CIRRUS_HOOK_HANDLED
;
1228 /***************************************
1230 * I/O access at 0x3c6
1232 ***************************************/
1234 static void cirrus_read_hidden_dac(CirrusVGAState
* s
, int *reg_value
)
1237 if (++s
->cirrus_hidden_dac_lockindex
== 5) {
1238 *reg_value
= s
->cirrus_hidden_dac_data
;
1239 s
->cirrus_hidden_dac_lockindex
= 0;
1243 static void cirrus_write_hidden_dac(CirrusVGAState
* s
, int reg_value
)
1245 if (s
->cirrus_hidden_dac_lockindex
== 4) {
1246 s
->cirrus_hidden_dac_data
= reg_value
;
1247 #if defined(DEBUG_CIRRUS)
1248 printf("cirrus: outport hidden DAC, value %02x\n", reg_value
);
1251 s
->cirrus_hidden_dac_lockindex
= 0;
1254 /***************************************
1256 * I/O access at 0x3c9
1258 ***************************************/
1260 static int cirrus_hook_read_palette(CirrusVGAState
* s
, int *reg_value
)
1262 if (!(s
->sr
[0x12] & CIRRUS_CURSOR_HIDDENPEL
))
1263 return CIRRUS_HOOK_NOT_HANDLED
;
1265 s
->cirrus_hidden_palette
[(s
->dac_read_index
& 0x0f) * 3 +
1267 if (++s
->dac_sub_index
== 3) {
1268 s
->dac_sub_index
= 0;
1269 s
->dac_read_index
++;
1271 return CIRRUS_HOOK_HANDLED
;
1274 static int cirrus_hook_write_palette(CirrusVGAState
* s
, int reg_value
)
1276 if (!(s
->sr
[0x12] & CIRRUS_CURSOR_HIDDENPEL
))
1277 return CIRRUS_HOOK_NOT_HANDLED
;
1278 s
->dac_cache
[s
->dac_sub_index
] = reg_value
;
1279 if (++s
->dac_sub_index
== 3) {
1280 memcpy(&s
->cirrus_hidden_palette
[(s
->dac_write_index
& 0x0f) * 3],
1282 /* XXX update cursor */
1283 s
->dac_sub_index
= 0;
1284 s
->dac_write_index
++;
1286 return CIRRUS_HOOK_HANDLED
;
1289 /***************************************
1291 * I/O access between 0x3ce-0x3cf
1293 ***************************************/
1296 cirrus_hook_read_gr(CirrusVGAState
* s
, unsigned reg_index
, int *reg_value
)
1298 switch (reg_index
) {
1299 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1300 *reg_value
= s
->cirrus_shadow_gr0
;
1301 return CIRRUS_HOOK_HANDLED
;
1302 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1303 *reg_value
= s
->cirrus_shadow_gr1
;
1304 return CIRRUS_HOOK_HANDLED
;
1305 case 0x02: // Standard VGA
1306 case 0x03: // Standard VGA
1307 case 0x04: // Standard VGA
1308 case 0x06: // Standard VGA
1309 case 0x07: // Standard VGA
1310 case 0x08: // Standard VGA
1311 return CIRRUS_HOOK_NOT_HANDLED
;
1312 case 0x05: // Standard VGA, Cirrus extended mode
1317 if (reg_index
< 0x3a) {
1318 *reg_value
= s
->gr
[reg_index
];
1321 printf("cirrus: inport gr_index %02x\n", reg_index
);
1326 return CIRRUS_HOOK_HANDLED
;
1330 cirrus_hook_write_gr(CirrusVGAState
* s
, unsigned reg_index
, int reg_value
)
1332 #if defined(DEBUG_BITBLT) && 0
1333 printf("gr%02x: %02x\n", reg_index
, reg_value
);
1335 switch (reg_index
) {
1336 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1337 s
->cirrus_shadow_gr0
= reg_value
;
1338 return CIRRUS_HOOK_NOT_HANDLED
;
1339 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1340 s
->cirrus_shadow_gr1
= reg_value
;
1341 return CIRRUS_HOOK_NOT_HANDLED
;
1342 case 0x02: // Standard VGA
1343 case 0x03: // Standard VGA
1344 case 0x04: // Standard VGA
1345 case 0x06: // Standard VGA
1346 case 0x07: // Standard VGA
1347 case 0x08: // Standard VGA
1348 return CIRRUS_HOOK_NOT_HANDLED
;
1349 case 0x05: // Standard VGA, Cirrus extended mode
1350 s
->gr
[reg_index
] = reg_value
& 0x7f;
1352 case 0x09: // bank offset #0
1353 case 0x0A: // bank offset #1
1355 s
->gr
[reg_index
] = reg_value
;
1356 cirrus_update_bank_ptr(s
, 0);
1357 cirrus_update_bank_ptr(s
, 1);
1359 case 0x10: // BGCOLOR 0x0000ff00
1360 case 0x11: // FGCOLOR 0x0000ff00
1361 case 0x12: // BGCOLOR 0x00ff0000
1362 case 0x13: // FGCOLOR 0x00ff0000
1363 case 0x14: // BGCOLOR 0xff000000
1364 case 0x15: // FGCOLOR 0xff000000
1365 case 0x20: // BLT WIDTH 0x0000ff
1366 case 0x22: // BLT HEIGHT 0x0000ff
1367 case 0x24: // BLT DEST PITCH 0x0000ff
1368 case 0x26: // BLT SRC PITCH 0x0000ff
1369 case 0x28: // BLT DEST ADDR 0x0000ff
1370 case 0x29: // BLT DEST ADDR 0x00ff00
1371 case 0x2c: // BLT SRC ADDR 0x0000ff
1372 case 0x2d: // BLT SRC ADDR 0x00ff00
1373 case 0x2f: // BLT WRITEMASK
1374 case 0x30: // BLT MODE
1375 case 0x32: // RASTER OP
1376 case 0x33: // BLT MODEEXT
1377 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1378 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1379 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1380 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1381 s
->gr
[reg_index
] = reg_value
;
1383 case 0x21: // BLT WIDTH 0x001f00
1384 case 0x23: // BLT HEIGHT 0x001f00
1385 case 0x25: // BLT DEST PITCH 0x001f00
1386 case 0x27: // BLT SRC PITCH 0x001f00
1387 s
->gr
[reg_index
] = reg_value
& 0x1f;
1389 case 0x2a: // BLT DEST ADDR 0x3f0000
1390 s
->gr
[reg_index
] = reg_value
& 0x3f;
1391 /* if auto start mode, starts bit blt now */
1392 if (s
->gr
[0x31] & CIRRUS_BLT_AUTOSTART
) {
1393 cirrus_bitblt_start(s
);
1396 case 0x2e: // BLT SRC ADDR 0x3f0000
1397 s
->gr
[reg_index
] = reg_value
& 0x3f;
1399 case 0x31: // BLT STATUS/START
1400 cirrus_write_bitblt(s
, reg_value
);
1404 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index
,
1410 return CIRRUS_HOOK_HANDLED
;
1413 /***************************************
1415 * I/O access between 0x3d4-0x3d5
1417 ***************************************/
1420 cirrus_hook_read_cr(CirrusVGAState
* s
, unsigned reg_index
, int *reg_value
)
1422 switch (reg_index
) {
1423 case 0x00: // Standard VGA
1424 case 0x01: // Standard VGA
1425 case 0x02: // Standard VGA
1426 case 0x03: // Standard VGA
1427 case 0x04: // Standard VGA
1428 case 0x05: // Standard VGA
1429 case 0x06: // Standard VGA
1430 case 0x07: // Standard VGA
1431 case 0x08: // Standard VGA
1432 case 0x09: // Standard VGA
1433 case 0x0a: // Standard VGA
1434 case 0x0b: // Standard VGA
1435 case 0x0c: // Standard VGA
1436 case 0x0d: // Standard VGA
1437 case 0x0e: // Standard VGA
1438 case 0x0f: // Standard VGA
1439 case 0x10: // Standard VGA
1440 case 0x11: // Standard VGA
1441 case 0x12: // Standard VGA
1442 case 0x13: // Standard VGA
1443 case 0x14: // Standard VGA
1444 case 0x15: // Standard VGA
1445 case 0x16: // Standard VGA
1446 case 0x17: // Standard VGA
1447 case 0x18: // Standard VGA
1448 return CIRRUS_HOOK_NOT_HANDLED
;
1449 case 0x19: // Interlace End
1450 case 0x1a: // Miscellaneous Control
1451 case 0x1b: // Extended Display Control
1452 case 0x1c: // Sync Adjust and Genlock
1453 case 0x1d: // Overlay Extended Control
1454 case 0x22: // Graphics Data Latches Readback (R)
1455 case 0x24: // Attribute Controller Toggle Readback (R)
1456 case 0x25: // Part Status
1457 case 0x27: // Part ID (R)
1458 *reg_value
= s
->cr
[reg_index
];
1460 case 0x26: // Attribute Controller Index Readback (R)
1461 *reg_value
= s
->ar_index
& 0x3f;
1465 printf("cirrus: inport cr_index %02x\n", reg_index
);
1471 return CIRRUS_HOOK_HANDLED
;
1475 cirrus_hook_write_cr(CirrusVGAState
* s
, unsigned reg_index
, int reg_value
)
1477 switch (reg_index
) {
1478 case 0x00: // Standard VGA
1479 case 0x01: // Standard VGA
1480 case 0x02: // Standard VGA
1481 case 0x03: // Standard VGA
1482 case 0x04: // Standard VGA
1483 case 0x05: // Standard VGA
1484 case 0x06: // Standard VGA
1485 case 0x07: // Standard VGA
1486 case 0x08: // Standard VGA
1487 case 0x09: // Standard VGA
1488 case 0x0a: // Standard VGA
1489 case 0x0b: // Standard VGA
1490 case 0x0c: // Standard VGA
1491 case 0x0d: // Standard VGA
1492 case 0x0e: // Standard VGA
1493 case 0x0f: // Standard VGA
1494 case 0x10: // Standard VGA
1495 case 0x11: // Standard VGA
1496 case 0x12: // Standard VGA
1497 case 0x13: // Standard VGA
1498 case 0x14: // Standard VGA
1499 case 0x15: // Standard VGA
1500 case 0x16: // Standard VGA
1501 case 0x17: // Standard VGA
1502 case 0x18: // Standard VGA
1503 return CIRRUS_HOOK_NOT_HANDLED
;
1504 case 0x19: // Interlace End
1505 case 0x1a: // Miscellaneous Control
1506 case 0x1b: // Extended Display Control
1507 case 0x1c: // Sync Adjust and Genlock
1508 case 0x1d: // Overlay Extended Control
1509 s
->cr
[reg_index
] = reg_value
;
1511 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1512 reg_index
, reg_value
);
1515 case 0x22: // Graphics Data Latches Readback (R)
1516 case 0x24: // Attribute Controller Toggle Readback (R)
1517 case 0x26: // Attribute Controller Index Readback (R)
1518 case 0x27: // Part ID (R)
1520 case 0x25: // Part Status
1523 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index
,
1529 return CIRRUS_HOOK_HANDLED
;
1532 /***************************************
1534 * memory-mapped I/O (bitblt)
1536 ***************************************/
1538 static uint8_t cirrus_mmio_blt_read(CirrusVGAState
* s
, unsigned address
)
1543 case (CIRRUS_MMIO_BLTBGCOLOR
+ 0):
1544 cirrus_hook_read_gr(s
, 0x00, &value
);
1546 case (CIRRUS_MMIO_BLTBGCOLOR
+ 1):
1547 cirrus_hook_read_gr(s
, 0x10, &value
);
1549 case (CIRRUS_MMIO_BLTBGCOLOR
+ 2):
1550 cirrus_hook_read_gr(s
, 0x12, &value
);
1552 case (CIRRUS_MMIO_BLTBGCOLOR
+ 3):
1553 cirrus_hook_read_gr(s
, 0x14, &value
);
1555 case (CIRRUS_MMIO_BLTFGCOLOR
+ 0):
1556 cirrus_hook_read_gr(s
, 0x01, &value
);
1558 case (CIRRUS_MMIO_BLTFGCOLOR
+ 1):
1559 cirrus_hook_read_gr(s
, 0x11, &value
);
1561 case (CIRRUS_MMIO_BLTFGCOLOR
+ 2):
1562 cirrus_hook_read_gr(s
, 0x13, &value
);
1564 case (CIRRUS_MMIO_BLTFGCOLOR
+ 3):
1565 cirrus_hook_read_gr(s
, 0x15, &value
);
1567 case (CIRRUS_MMIO_BLTWIDTH
+ 0):
1568 cirrus_hook_read_gr(s
, 0x20, &value
);
1570 case (CIRRUS_MMIO_BLTWIDTH
+ 1):
1571 cirrus_hook_read_gr(s
, 0x21, &value
);
1573 case (CIRRUS_MMIO_BLTHEIGHT
+ 0):
1574 cirrus_hook_read_gr(s
, 0x22, &value
);
1576 case (CIRRUS_MMIO_BLTHEIGHT
+ 1):
1577 cirrus_hook_read_gr(s
, 0x23, &value
);
1579 case (CIRRUS_MMIO_BLTDESTPITCH
+ 0):
1580 cirrus_hook_read_gr(s
, 0x24, &value
);
1582 case (CIRRUS_MMIO_BLTDESTPITCH
+ 1):
1583 cirrus_hook_read_gr(s
, 0x25, &value
);
1585 case (CIRRUS_MMIO_BLTSRCPITCH
+ 0):
1586 cirrus_hook_read_gr(s
, 0x26, &value
);
1588 case (CIRRUS_MMIO_BLTSRCPITCH
+ 1):
1589 cirrus_hook_read_gr(s
, 0x27, &value
);
1591 case (CIRRUS_MMIO_BLTDESTADDR
+ 0):
1592 cirrus_hook_read_gr(s
, 0x28, &value
);
1594 case (CIRRUS_MMIO_BLTDESTADDR
+ 1):
1595 cirrus_hook_read_gr(s
, 0x29, &value
);
1597 case (CIRRUS_MMIO_BLTDESTADDR
+ 2):
1598 cirrus_hook_read_gr(s
, 0x2a, &value
);
1600 case (CIRRUS_MMIO_BLTSRCADDR
+ 0):
1601 cirrus_hook_read_gr(s
, 0x2c, &value
);
1603 case (CIRRUS_MMIO_BLTSRCADDR
+ 1):
1604 cirrus_hook_read_gr(s
, 0x2d, &value
);
1606 case (CIRRUS_MMIO_BLTSRCADDR
+ 2):
1607 cirrus_hook_read_gr(s
, 0x2e, &value
);
1609 case CIRRUS_MMIO_BLTWRITEMASK
:
1610 cirrus_hook_read_gr(s
, 0x2f, &value
);
1612 case CIRRUS_MMIO_BLTMODE
:
1613 cirrus_hook_read_gr(s
, 0x30, &value
);
1615 case CIRRUS_MMIO_BLTROP
:
1616 cirrus_hook_read_gr(s
, 0x32, &value
);
1618 case CIRRUS_MMIO_BLTMODEEXT
:
1619 cirrus_hook_read_gr(s
, 0x33, &value
);
1621 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR
+ 0):
1622 cirrus_hook_read_gr(s
, 0x34, &value
);
1624 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR
+ 1):
1625 cirrus_hook_read_gr(s
, 0x35, &value
);
1627 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK
+ 0):
1628 cirrus_hook_read_gr(s
, 0x38, &value
);
1630 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK
+ 1):
1631 cirrus_hook_read_gr(s
, 0x39, &value
);
1633 case CIRRUS_MMIO_BLTSTATUS
:
1634 cirrus_hook_read_gr(s
, 0x31, &value
);
1638 printf("cirrus: mmio read - address 0x%04x\n", address
);
1643 return (uint8_t) value
;
1646 static void cirrus_mmio_blt_write(CirrusVGAState
* s
, unsigned address
,
1650 case (CIRRUS_MMIO_BLTBGCOLOR
+ 0):
1651 cirrus_hook_write_gr(s
, 0x00, value
);
1653 case (CIRRUS_MMIO_BLTBGCOLOR
+ 1):
1654 cirrus_hook_write_gr(s
, 0x10, value
);
1656 case (CIRRUS_MMIO_BLTBGCOLOR
+ 2):
1657 cirrus_hook_write_gr(s
, 0x12, value
);
1659 case (CIRRUS_MMIO_BLTBGCOLOR
+ 3):
1660 cirrus_hook_write_gr(s
, 0x14, value
);
1662 case (CIRRUS_MMIO_BLTFGCOLOR
+ 0):
1663 cirrus_hook_write_gr(s
, 0x01, value
);
1665 case (CIRRUS_MMIO_BLTFGCOLOR
+ 1):
1666 cirrus_hook_write_gr(s
, 0x11, value
);
1668 case (CIRRUS_MMIO_BLTFGCOLOR
+ 2):
1669 cirrus_hook_write_gr(s
, 0x13, value
);
1671 case (CIRRUS_MMIO_BLTFGCOLOR
+ 3):
1672 cirrus_hook_write_gr(s
, 0x15, value
);
1674 case (CIRRUS_MMIO_BLTWIDTH
+ 0):
1675 cirrus_hook_write_gr(s
, 0x20, value
);
1677 case (CIRRUS_MMIO_BLTWIDTH
+ 1):
1678 cirrus_hook_write_gr(s
, 0x21, value
);
1680 case (CIRRUS_MMIO_BLTHEIGHT
+ 0):
1681 cirrus_hook_write_gr(s
, 0x22, value
);
1683 case (CIRRUS_MMIO_BLTHEIGHT
+ 1):
1684 cirrus_hook_write_gr(s
, 0x23, value
);
1686 case (CIRRUS_MMIO_BLTDESTPITCH
+ 0):
1687 cirrus_hook_write_gr(s
, 0x24, value
);
1689 case (CIRRUS_MMIO_BLTDESTPITCH
+ 1):
1690 cirrus_hook_write_gr(s
, 0x25, value
);
1692 case (CIRRUS_MMIO_BLTSRCPITCH
+ 0):
1693 cirrus_hook_write_gr(s
, 0x26, value
);
1695 case (CIRRUS_MMIO_BLTSRCPITCH
+ 1):
1696 cirrus_hook_write_gr(s
, 0x27, value
);
1698 case (CIRRUS_MMIO_BLTDESTADDR
+ 0):
1699 cirrus_hook_write_gr(s
, 0x28, value
);
1701 case (CIRRUS_MMIO_BLTDESTADDR
+ 1):
1702 cirrus_hook_write_gr(s
, 0x29, value
);
1704 case (CIRRUS_MMIO_BLTDESTADDR
+ 2):
1705 cirrus_hook_write_gr(s
, 0x2a, value
);
1707 case (CIRRUS_MMIO_BLTDESTADDR
+ 3):
1710 case (CIRRUS_MMIO_BLTSRCADDR
+ 0):
1711 cirrus_hook_write_gr(s
, 0x2c, value
);
1713 case (CIRRUS_MMIO_BLTSRCADDR
+ 1):
1714 cirrus_hook_write_gr(s
, 0x2d, value
);
1716 case (CIRRUS_MMIO_BLTSRCADDR
+ 2):
1717 cirrus_hook_write_gr(s
, 0x2e, value
);
1719 case CIRRUS_MMIO_BLTWRITEMASK
:
1720 cirrus_hook_write_gr(s
, 0x2f, value
);
1722 case CIRRUS_MMIO_BLTMODE
:
1723 cirrus_hook_write_gr(s
, 0x30, value
);
1725 case CIRRUS_MMIO_BLTROP
:
1726 cirrus_hook_write_gr(s
, 0x32, value
);
1728 case CIRRUS_MMIO_BLTMODEEXT
:
1729 cirrus_hook_write_gr(s
, 0x33, value
);
1731 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR
+ 0):
1732 cirrus_hook_write_gr(s
, 0x34, value
);
1734 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR
+ 1):
1735 cirrus_hook_write_gr(s
, 0x35, value
);
1737 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK
+ 0):
1738 cirrus_hook_write_gr(s
, 0x38, value
);
1740 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK
+ 1):
1741 cirrus_hook_write_gr(s
, 0x39, value
);
1743 case CIRRUS_MMIO_BLTSTATUS
:
1744 cirrus_hook_write_gr(s
, 0x31, value
);
1748 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1755 /***************************************
1759 * assume TARGET_PAGE_SIZE >= 16
1761 ***************************************/
1763 static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState
* s
,
1769 unsigned val
= mem_value
;
1772 dst
= s
->vram_ptr
+ offset
;
1773 for (x
= 0; x
< 8; x
++) {
1775 *dst
++ = s
->cirrus_shadow_gr1
;
1776 } else if (mode
== 5) {
1777 *dst
++ = s
->cirrus_shadow_gr0
;
1781 cpu_physical_memory_set_dirty(s
->vram_offset
+ offset
);
1782 cpu_physical_memory_set_dirty(s
->vram_offset
+ offset
+ 7);
1785 static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState
* s
,
1791 unsigned val
= mem_value
;
1794 dst
= s
->vram_ptr
+ offset
;
1795 for (x
= 0; x
< 8; x
++) {
1797 *dst
++ = s
->cirrus_shadow_gr1
;
1798 *dst
++ = s
->gr
[0x11];
1799 } else if (mode
== 5) {
1800 *dst
++ = s
->cirrus_shadow_gr0
;
1801 *dst
++ = s
->gr
[0x10];
1805 cpu_physical_memory_set_dirty(s
->vram_offset
+ offset
);
1806 cpu_physical_memory_set_dirty(s
->vram_offset
+ offset
+ 15);
1809 /***************************************
1811 * memory access between 0xa0000-0xbffff
1813 ***************************************/
1815 static uint32_t cirrus_vga_mem_readb(void *opaque
, target_phys_addr_t addr
)
1817 CirrusVGAState
*s
= opaque
;
1818 unsigned bank_index
;
1819 unsigned bank_offset
;
1822 if ((s
->sr
[0x07] & 0x01) == 0) {
1823 return vga_mem_readb(s
, addr
);
1828 if (addr
< 0x10000) {
1829 /* XXX handle bitblt */
1831 bank_index
= addr
>> 15;
1832 bank_offset
= addr
& 0x7fff;
1833 if (bank_offset
< s
->cirrus_bank_limit
[bank_index
]) {
1834 bank_offset
+= s
->cirrus_bank_base
[bank_index
];
1835 if ((s
->gr
[0x0B] & 0x14) == 0x14) {
1837 } else if (s
->gr
[0x0B] & 0x02) {
1840 bank_offset
&= s
->cirrus_addr_mask
;
1841 val
= *(s
->vram_ptr
+ bank_offset
);
1844 } else if (addr
>= 0x18000 && addr
< 0x18100) {
1845 /* memory-mapped I/O */
1847 if ((s
->sr
[0x17] & 0x44) == 0x04) {
1848 val
= cirrus_mmio_blt_read(s
, addr
& 0xff);
1853 printf("cirrus: mem_readb %06x\n", addr
);
1859 static uint32_t cirrus_vga_mem_readw(void *opaque
, target_phys_addr_t addr
)
1862 #ifdef TARGET_WORDS_BIGENDIAN
1863 v
= cirrus_vga_mem_readb(opaque
, addr
) << 8;
1864 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 1);
1866 v
= cirrus_vga_mem_readb(opaque
, addr
);
1867 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 1) << 8;
1872 static uint32_t cirrus_vga_mem_readl(void *opaque
, target_phys_addr_t addr
)
1875 #ifdef TARGET_WORDS_BIGENDIAN
1876 v
= cirrus_vga_mem_readb(opaque
, addr
) << 24;
1877 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 1) << 16;
1878 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 2) << 8;
1879 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 3);
1881 v
= cirrus_vga_mem_readb(opaque
, addr
);
1882 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 1) << 8;
1883 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 2) << 16;
1884 v
|= cirrus_vga_mem_readb(opaque
, addr
+ 3) << 24;
1889 static void cirrus_vga_mem_writeb(void *opaque
, target_phys_addr_t addr
,
1892 CirrusVGAState
*s
= opaque
;
1893 unsigned bank_index
;
1894 unsigned bank_offset
;
1897 if ((s
->sr
[0x07] & 0x01) == 0) {
1898 vga_mem_writeb(s
, addr
, mem_value
);
1904 if (addr
< 0x10000) {
1905 if (s
->cirrus_srcptr
!= s
->cirrus_srcptr_end
) {
1907 *s
->cirrus_srcptr
++ = (uint8_t) mem_value
;
1908 if (s
->cirrus_srcptr
>= s
->cirrus_srcptr_end
) {
1909 cirrus_bitblt_cputovideo_next(s
);
1913 bank_index
= addr
>> 15;
1914 bank_offset
= addr
& 0x7fff;
1915 if (bank_offset
< s
->cirrus_bank_limit
[bank_index
]) {
1916 bank_offset
+= s
->cirrus_bank_base
[bank_index
];
1917 if ((s
->gr
[0x0B] & 0x14) == 0x14) {
1919 } else if (s
->gr
[0x0B] & 0x02) {
1922 bank_offset
&= s
->cirrus_addr_mask
;
1923 mode
= s
->gr
[0x05] & 0x7;
1924 if (mode
< 4 || mode
> 5 || ((s
->gr
[0x0B] & 0x4) == 0)) {
1925 *(s
->vram_ptr
+ bank_offset
) = mem_value
;
1926 cpu_physical_memory_set_dirty(s
->vram_offset
+
1929 if ((s
->gr
[0x0B] & 0x14) != 0x14) {
1930 cirrus_mem_writeb_mode4and5_8bpp(s
, mode
,
1934 cirrus_mem_writeb_mode4and5_16bpp(s
, mode
,
1941 } else if (addr
>= 0x18000 && addr
< 0x18100) {
1942 /* memory-mapped I/O */
1943 if ((s
->sr
[0x17] & 0x44) == 0x04) {
1944 cirrus_mmio_blt_write(s
, addr
& 0xff, mem_value
);
1948 printf("cirrus: mem_writeb %06x value %02x\n", addr
, mem_value
);
1953 static void cirrus_vga_mem_writew(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
1955 #ifdef TARGET_WORDS_BIGENDIAN
1956 cirrus_vga_mem_writeb(opaque
, addr
, (val
>> 8) & 0xff);
1957 cirrus_vga_mem_writeb(opaque
, addr
+ 1, val
& 0xff);
1959 cirrus_vga_mem_writeb(opaque
, addr
, val
& 0xff);
1960 cirrus_vga_mem_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
1964 static void cirrus_vga_mem_writel(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
1966 #ifdef TARGET_WORDS_BIGENDIAN
1967 cirrus_vga_mem_writeb(opaque
, addr
, (val
>> 24) & 0xff);
1968 cirrus_vga_mem_writeb(opaque
, addr
+ 1, (val
>> 16) & 0xff);
1969 cirrus_vga_mem_writeb(opaque
, addr
+ 2, (val
>> 8) & 0xff);
1970 cirrus_vga_mem_writeb(opaque
, addr
+ 3, val
& 0xff);
1972 cirrus_vga_mem_writeb(opaque
, addr
, val
& 0xff);
1973 cirrus_vga_mem_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
1974 cirrus_vga_mem_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
1975 cirrus_vga_mem_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
1979 static CPUReadMemoryFunc
*cirrus_vga_mem_read
[3] = {
1980 cirrus_vga_mem_readb
,
1981 cirrus_vga_mem_readw
,
1982 cirrus_vga_mem_readl
,
1985 static CPUWriteMemoryFunc
*cirrus_vga_mem_write
[3] = {
1986 cirrus_vga_mem_writeb
,
1987 cirrus_vga_mem_writew
,
1988 cirrus_vga_mem_writel
,
1991 /***************************************
1995 ***************************************/
1997 static inline void invalidate_cursor1(CirrusVGAState
*s
)
1999 if (s
->last_hw_cursor_size
) {
2000 vga_invalidate_scanlines((VGAState
*)s
,
2001 s
->last_hw_cursor_y
+ s
->last_hw_cursor_y_start
,
2002 s
->last_hw_cursor_y
+ s
->last_hw_cursor_y_end
);
2006 static inline void cirrus_cursor_compute_yrange(CirrusVGAState
*s
)
2010 int y
, y_min
, y_max
;
2012 src
= s
->vram_ptr
+ s
->real_vram_size
- 16 * 1024;
2013 if (s
->sr
[0x12] & CIRRUS_CURSOR_LARGE
) {
2014 src
+= (s
->sr
[0x13] & 0x3c) * 256;
2017 for(y
= 0; y
< 64; y
++) {
2018 content
= ((uint32_t *)src
)[0] |
2019 ((uint32_t *)src
)[1] |
2020 ((uint32_t *)src
)[2] |
2021 ((uint32_t *)src
)[3];
2031 src
+= (s
->sr
[0x13] & 0x3f) * 256;
2034 for(y
= 0; y
< 32; y
++) {
2035 content
= ((uint32_t *)src
)[0] |
2036 ((uint32_t *)(src
+ 128))[0];
2046 if (y_min
> y_max
) {
2047 s
->last_hw_cursor_y_start
= 0;
2048 s
->last_hw_cursor_y_end
= 0;
2050 s
->last_hw_cursor_y_start
= y_min
;
2051 s
->last_hw_cursor_y_end
= y_max
+ 1;
2055 /* NOTE: we do not currently handle the cursor bitmap change, so we
2056 update the cursor only if it moves. */
2057 static void cirrus_cursor_invalidate(VGAState
*s1
)
2059 CirrusVGAState
*s
= (CirrusVGAState
*)s1
;
2062 if (!s
->sr
[0x12] & CIRRUS_CURSOR_SHOW
) {
2065 if (s
->sr
[0x12] & CIRRUS_CURSOR_LARGE
)
2070 /* invalidate last cursor and new cursor if any change */
2071 if (s
->last_hw_cursor_size
!= size
||
2072 s
->last_hw_cursor_x
!= s
->hw_cursor_x
||
2073 s
->last_hw_cursor_y
!= s
->hw_cursor_y
) {
2075 invalidate_cursor1(s
);
2077 s
->last_hw_cursor_size
= size
;
2078 s
->last_hw_cursor_x
= s
->hw_cursor_x
;
2079 s
->last_hw_cursor_y
= s
->hw_cursor_y
;
2080 /* compute the real cursor min and max y */
2081 cirrus_cursor_compute_yrange(s
);
2082 invalidate_cursor1(s
);
2086 static void cirrus_cursor_draw_line(VGAState
*s1
, uint8_t *d1
, int scr_y
)
2088 CirrusVGAState
*s
= (CirrusVGAState
*)s1
;
2089 int w
, h
, bpp
, x1
, x2
, poffset
;
2090 unsigned int color0
, color1
;
2091 const uint8_t *palette
, *src
;
2094 if (!(s
->sr
[0x12] & CIRRUS_CURSOR_SHOW
))
2096 /* fast test to see if the cursor intersects with the scan line */
2097 if (s
->sr
[0x12] & CIRRUS_CURSOR_LARGE
) {
2102 if (scr_y
< s
->hw_cursor_y
||
2103 scr_y
>= (s
->hw_cursor_y
+ h
))
2106 src
= s
->vram_ptr
+ s
->real_vram_size
- 16 * 1024;
2107 if (s
->sr
[0x12] & CIRRUS_CURSOR_LARGE
) {
2108 src
+= (s
->sr
[0x13] & 0x3c) * 256;
2109 src
+= (scr_y
- s
->hw_cursor_y
) * 16;
2111 content
= ((uint32_t *)src
)[0] |
2112 ((uint32_t *)src
)[1] |
2113 ((uint32_t *)src
)[2] |
2114 ((uint32_t *)src
)[3];
2116 src
+= (s
->sr
[0x13] & 0x3f) * 256;
2117 src
+= (scr_y
- s
->hw_cursor_y
) * 4;
2119 content
= ((uint32_t *)src
)[0] |
2120 ((uint32_t *)(src
+ 128))[0];
2122 /* if nothing to draw, no need to continue */
2127 x1
= s
->hw_cursor_x
;
2128 if (x1
>= s
->last_scr_width
)
2130 x2
= s
->hw_cursor_x
+ w
;
2131 if (x2
> s
->last_scr_width
)
2132 x2
= s
->last_scr_width
;
2134 palette
= s
->cirrus_hidden_palette
;
2135 color0
= s
->rgb_to_pixel(c6_to_8(palette
[0x0 * 3]),
2136 c6_to_8(palette
[0x0 * 3 + 1]),
2137 c6_to_8(palette
[0x0 * 3 + 2]));
2138 color1
= s
->rgb_to_pixel(c6_to_8(palette
[0xf * 3]),
2139 c6_to_8(palette
[0xf * 3 + 1]),
2140 c6_to_8(palette
[0xf * 3 + 2]));
2141 bpp
= ((s
->ds
->depth
+ 7) >> 3);
2143 switch(s
->ds
->depth
) {
2147 vga_draw_cursor_line_8(d1
, src
, poffset
, w
, color0
, color1
, 0xff);
2150 vga_draw_cursor_line_16(d1
, src
, poffset
, w
, color0
, color1
, 0x7fff);
2153 vga_draw_cursor_line_16(d1
, src
, poffset
, w
, color0
, color1
, 0xffff);
2156 vga_draw_cursor_line_32(d1
, src
, poffset
, w
, color0
, color1
, 0xffffff);
2161 /***************************************
2165 ***************************************/
2167 static uint32_t cirrus_linear_readb(void *opaque
, target_phys_addr_t addr
)
2169 CirrusVGAState
*s
= (CirrusVGAState
*) opaque
;
2172 addr
&= s
->cirrus_addr_mask
;
2174 if (((s
->sr
[0x17] & 0x44) == 0x44) &&
2175 ((addr
& s
->linear_mmio_mask
) == s
->linear_mmio_mask
)) {
2176 /* memory-mapped I/O */
2177 ret
= cirrus_mmio_blt_read(s
, addr
& 0xff);
2179 /* XXX handle bitblt */
2183 if ((s
->gr
[0x0B] & 0x14) == 0x14) {
2185 } else if (s
->gr
[0x0B] & 0x02) {
2188 addr
&= s
->cirrus_addr_mask
;
2189 ret
= *(s
->vram_ptr
+ addr
);
2195 static uint32_t cirrus_linear_readw(void *opaque
, target_phys_addr_t addr
)
2198 #ifdef TARGET_WORDS_BIGENDIAN
2199 v
= cirrus_linear_readb(opaque
, addr
) << 8;
2200 v
|= cirrus_linear_readb(opaque
, addr
+ 1);
2202 v
= cirrus_linear_readb(opaque
, addr
);
2203 v
|= cirrus_linear_readb(opaque
, addr
+ 1) << 8;
2208 static uint32_t cirrus_linear_readl(void *opaque
, target_phys_addr_t addr
)
2211 #ifdef TARGET_WORDS_BIGENDIAN
2212 v
= cirrus_linear_readb(opaque
, addr
) << 24;
2213 v
|= cirrus_linear_readb(opaque
, addr
+ 1) << 16;
2214 v
|= cirrus_linear_readb(opaque
, addr
+ 2) << 8;
2215 v
|= cirrus_linear_readb(opaque
, addr
+ 3);
2217 v
= cirrus_linear_readb(opaque
, addr
);
2218 v
|= cirrus_linear_readb(opaque
, addr
+ 1) << 8;
2219 v
|= cirrus_linear_readb(opaque
, addr
+ 2) << 16;
2220 v
|= cirrus_linear_readb(opaque
, addr
+ 3) << 24;
2225 static void cirrus_linear_writeb(void *opaque
, target_phys_addr_t addr
,
2228 CirrusVGAState
*s
= (CirrusVGAState
*) opaque
;
2231 addr
&= s
->cirrus_addr_mask
;
2233 if (((s
->sr
[0x17] & 0x44) == 0x44) &&
2234 ((addr
& s
->linear_mmio_mask
) == s
->linear_mmio_mask
)) {
2235 /* memory-mapped I/O */
2236 cirrus_mmio_blt_write(s
, addr
& 0xff, val
);
2237 } else if (s
->cirrus_srcptr
!= s
->cirrus_srcptr_end
) {
2239 *s
->cirrus_srcptr
++ = (uint8_t) val
;
2240 if (s
->cirrus_srcptr
>= s
->cirrus_srcptr_end
) {
2241 cirrus_bitblt_cputovideo_next(s
);
2245 if ((s
->gr
[0x0B] & 0x14) == 0x14) {
2247 } else if (s
->gr
[0x0B] & 0x02) {
2250 addr
&= s
->cirrus_addr_mask
;
2252 mode
= s
->gr
[0x05] & 0x7;
2253 if (mode
< 4 || mode
> 5 || ((s
->gr
[0x0B] & 0x4) == 0)) {
2254 *(s
->vram_ptr
+ addr
) = (uint8_t) val
;
2255 cpu_physical_memory_set_dirty(s
->vram_offset
+ addr
);
2257 if ((s
->gr
[0x0B] & 0x14) != 0x14) {
2258 cirrus_mem_writeb_mode4and5_8bpp(s
, mode
, addr
, val
);
2260 cirrus_mem_writeb_mode4and5_16bpp(s
, mode
, addr
, val
);
2266 static void cirrus_linear_writew(void *opaque
, target_phys_addr_t addr
,
2269 #ifdef TARGET_WORDS_BIGENDIAN
2270 cirrus_linear_writeb(opaque
, addr
, (val
>> 8) & 0xff);
2271 cirrus_linear_writeb(opaque
, addr
+ 1, val
& 0xff);
2273 cirrus_linear_writeb(opaque
, addr
, val
& 0xff);
2274 cirrus_linear_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2278 static void cirrus_linear_writel(void *opaque
, target_phys_addr_t addr
,
2281 #ifdef TARGET_WORDS_BIGENDIAN
2282 cirrus_linear_writeb(opaque
, addr
, (val
>> 24) & 0xff);
2283 cirrus_linear_writeb(opaque
, addr
+ 1, (val
>> 16) & 0xff);
2284 cirrus_linear_writeb(opaque
, addr
+ 2, (val
>> 8) & 0xff);
2285 cirrus_linear_writeb(opaque
, addr
+ 3, val
& 0xff);
2287 cirrus_linear_writeb(opaque
, addr
, val
& 0xff);
2288 cirrus_linear_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2289 cirrus_linear_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
2290 cirrus_linear_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
2295 static CPUReadMemoryFunc
*cirrus_linear_read
[3] = {
2296 cirrus_linear_readb
,
2297 cirrus_linear_readw
,
2298 cirrus_linear_readl
,
2301 static CPUWriteMemoryFunc
*cirrus_linear_write
[3] = {
2302 cirrus_linear_writeb
,
2303 cirrus_linear_writew
,
2304 cirrus_linear_writel
,
2307 /***************************************
2309 * system to screen memory access
2311 ***************************************/
2314 static uint32_t cirrus_linear_bitblt_readb(void *opaque
, target_phys_addr_t addr
)
2318 /* XXX handle bitblt */
2323 static uint32_t cirrus_linear_bitblt_readw(void *opaque
, target_phys_addr_t addr
)
2326 #ifdef TARGET_WORDS_BIGENDIAN
2327 v
= cirrus_linear_bitblt_readb(opaque
, addr
) << 8;
2328 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 1);
2330 v
= cirrus_linear_bitblt_readb(opaque
, addr
);
2331 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 1) << 8;
2336 static uint32_t cirrus_linear_bitblt_readl(void *opaque
, target_phys_addr_t addr
)
2339 #ifdef TARGET_WORDS_BIGENDIAN
2340 v
= cirrus_linear_bitblt_readb(opaque
, addr
) << 24;
2341 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 1) << 16;
2342 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 2) << 8;
2343 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 3);
2345 v
= cirrus_linear_bitblt_readb(opaque
, addr
);
2346 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 1) << 8;
2347 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 2) << 16;
2348 v
|= cirrus_linear_bitblt_readb(opaque
, addr
+ 3) << 24;
2353 static void cirrus_linear_bitblt_writeb(void *opaque
, target_phys_addr_t addr
,
2356 CirrusVGAState
*s
= (CirrusVGAState
*) opaque
;
2358 if (s
->cirrus_srcptr
!= s
->cirrus_srcptr_end
) {
2360 *s
->cirrus_srcptr
++ = (uint8_t) val
;
2361 if (s
->cirrus_srcptr
>= s
->cirrus_srcptr_end
) {
2362 cirrus_bitblt_cputovideo_next(s
);
2367 static void cirrus_linear_bitblt_writew(void *opaque
, target_phys_addr_t addr
,
2370 #ifdef TARGET_WORDS_BIGENDIAN
2371 cirrus_linear_bitblt_writeb(opaque
, addr
, (val
>> 8) & 0xff);
2372 cirrus_linear_bitblt_writeb(opaque
, addr
+ 1, val
& 0xff);
2374 cirrus_linear_bitblt_writeb(opaque
, addr
, val
& 0xff);
2375 cirrus_linear_bitblt_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2379 static void cirrus_linear_bitblt_writel(void *opaque
, target_phys_addr_t addr
,
2382 #ifdef TARGET_WORDS_BIGENDIAN
2383 cirrus_linear_bitblt_writeb(opaque
, addr
, (val
>> 24) & 0xff);
2384 cirrus_linear_bitblt_writeb(opaque
, addr
+ 1, (val
>> 16) & 0xff);
2385 cirrus_linear_bitblt_writeb(opaque
, addr
+ 2, (val
>> 8) & 0xff);
2386 cirrus_linear_bitblt_writeb(opaque
, addr
+ 3, val
& 0xff);
2388 cirrus_linear_bitblt_writeb(opaque
, addr
, val
& 0xff);
2389 cirrus_linear_bitblt_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2390 cirrus_linear_bitblt_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
2391 cirrus_linear_bitblt_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
2396 static CPUReadMemoryFunc
*cirrus_linear_bitblt_read
[3] = {
2397 cirrus_linear_bitblt_readb
,
2398 cirrus_linear_bitblt_readw
,
2399 cirrus_linear_bitblt_readl
,
2402 static CPUWriteMemoryFunc
*cirrus_linear_bitblt_write
[3] = {
2403 cirrus_linear_bitblt_writeb
,
2404 cirrus_linear_bitblt_writew
,
2405 cirrus_linear_bitblt_writel
,
2410 static uint32_t vga_ioport_read(void *opaque
, uint32_t addr
)
2412 CirrusVGAState
*s
= opaque
;
2415 /* check port range access depending on color/monochrome mode */
2416 if ((addr
>= 0x3b0 && addr
<= 0x3bf && (s
->msr
& MSR_COLOR_EMULATION
))
2417 || (addr
>= 0x3d0 && addr
<= 0x3df
2418 && !(s
->msr
& MSR_COLOR_EMULATION
))) {
2423 if (s
->ar_flip_flop
== 0) {
2430 index
= s
->ar_index
& 0x1f;
2443 if (cirrus_hook_read_sr(s
, s
->sr_index
, &val
))
2445 val
= s
->sr
[s
->sr_index
];
2446 #ifdef DEBUG_VGA_REG
2447 printf("vga: read SR%x = 0x%02x\n", s
->sr_index
, val
);
2451 cirrus_read_hidden_dac(s
, &val
);
2457 val
= s
->dac_write_index
;
2458 s
->cirrus_hidden_dac_lockindex
= 0;
2461 if (cirrus_hook_read_palette(s
, &val
))
2463 val
= s
->palette
[s
->dac_read_index
* 3 + s
->dac_sub_index
];
2464 if (++s
->dac_sub_index
== 3) {
2465 s
->dac_sub_index
= 0;
2466 s
->dac_read_index
++;
2479 if (cirrus_hook_read_gr(s
, s
->gr_index
, &val
))
2481 val
= s
->gr
[s
->gr_index
];
2482 #ifdef DEBUG_VGA_REG
2483 printf("vga: read GR%x = 0x%02x\n", s
->gr_index
, val
);
2492 if (cirrus_hook_read_cr(s
, s
->cr_index
, &val
))
2494 val
= s
->cr
[s
->cr_index
];
2495 #ifdef DEBUG_VGA_REG
2496 printf("vga: read CR%x = 0x%02x\n", s
->cr_index
, val
);
2501 /* just toggle to fool polling */
2502 s
->st01
^= ST01_V_RETRACE
| ST01_DISP_ENABLE
;
2504 s
->ar_flip_flop
= 0;
2511 #if defined(DEBUG_VGA)
2512 printf("VGA: read addr=0x%04x data=0x%02x\n", addr
, val
);
2517 static void vga_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
)
2519 CirrusVGAState
*s
= opaque
;
2522 /* check port range access depending on color/monochrome mode */
2523 if ((addr
>= 0x3b0 && addr
<= 0x3bf && (s
->msr
& MSR_COLOR_EMULATION
))
2524 || (addr
>= 0x3d0 && addr
<= 0x3df
2525 && !(s
->msr
& MSR_COLOR_EMULATION
)))
2529 printf("VGA: write addr=0x%04x data=0x%02x\n", addr
, val
);
2534 if (s
->ar_flip_flop
== 0) {
2538 index
= s
->ar_index
& 0x1f;
2541 s
->ar
[index
] = val
& 0x3f;
2544 s
->ar
[index
] = val
& ~0x10;
2550 s
->ar
[index
] = val
& ~0xc0;
2553 s
->ar
[index
] = val
& ~0xf0;
2556 s
->ar
[index
] = val
& ~0xf0;
2562 s
->ar_flip_flop
^= 1;
2565 s
->msr
= val
& ~0x10;
2571 if (cirrus_hook_write_sr(s
, s
->sr_index
, val
))
2573 #ifdef DEBUG_VGA_REG
2574 printf("vga: write SR%x = 0x%02x\n", s
->sr_index
, val
);
2576 s
->sr
[s
->sr_index
] = val
& sr_mask
[s
->sr_index
];
2579 cirrus_write_hidden_dac(s
, val
);
2582 s
->dac_read_index
= val
;
2583 s
->dac_sub_index
= 0;
2587 s
->dac_write_index
= val
;
2588 s
->dac_sub_index
= 0;
2592 if (cirrus_hook_write_palette(s
, val
))
2594 s
->dac_cache
[s
->dac_sub_index
] = val
;
2595 if (++s
->dac_sub_index
== 3) {
2596 memcpy(&s
->palette
[s
->dac_write_index
* 3], s
->dac_cache
, 3);
2597 s
->dac_sub_index
= 0;
2598 s
->dac_write_index
++;
2605 if (cirrus_hook_write_gr(s
, s
->gr_index
, val
))
2607 #ifdef DEBUG_VGA_REG
2608 printf("vga: write GR%x = 0x%02x\n", s
->gr_index
, val
);
2610 s
->gr
[s
->gr_index
] = val
& gr_mask
[s
->gr_index
];
2618 if (cirrus_hook_write_cr(s
, s
->cr_index
, val
))
2620 #ifdef DEBUG_VGA_REG
2621 printf("vga: write CR%x = 0x%02x\n", s
->cr_index
, val
);
2623 /* handle CR0-7 protection */
2624 if ((s
->cr
[11] & 0x80) && s
->cr_index
<= 7) {
2625 /* can always write bit 4 of CR7 */
2626 if (s
->cr_index
== 7)
2627 s
->cr
[7] = (s
->cr
[7] & ~0x10) | (val
& 0x10);
2630 switch (s
->cr_index
) {
2631 case 0x01: /* horizontal display end */
2636 case 0x12: /* veritcal display end */
2637 s
->cr
[s
->cr_index
] = val
;
2641 s
->cr
[s
->cr_index
] = val
;
2647 s
->fcr
= val
& 0x10;
2652 /***************************************
2654 * memory-mapped I/O access
2656 ***************************************/
2658 static uint32_t cirrus_mmio_readb(void *opaque
, target_phys_addr_t addr
)
2660 CirrusVGAState
*s
= (CirrusVGAState
*) opaque
;
2662 addr
&= CIRRUS_PNPMMIO_SIZE
- 1;
2664 if (addr
>= 0x100) {
2665 return cirrus_mmio_blt_read(s
, addr
- 0x100);
2667 return vga_ioport_read(s
, addr
+ 0x3c0);
2671 static uint32_t cirrus_mmio_readw(void *opaque
, target_phys_addr_t addr
)
2674 #ifdef TARGET_WORDS_BIGENDIAN
2675 v
= cirrus_mmio_readb(opaque
, addr
) << 8;
2676 v
|= cirrus_mmio_readb(opaque
, addr
+ 1);
2678 v
= cirrus_mmio_readb(opaque
, addr
);
2679 v
|= cirrus_mmio_readb(opaque
, addr
+ 1) << 8;
2684 static uint32_t cirrus_mmio_readl(void *opaque
, target_phys_addr_t addr
)
2687 #ifdef TARGET_WORDS_BIGENDIAN
2688 v
= cirrus_mmio_readb(opaque
, addr
) << 24;
2689 v
|= cirrus_mmio_readb(opaque
, addr
+ 1) << 16;
2690 v
|= cirrus_mmio_readb(opaque
, addr
+ 2) << 8;
2691 v
|= cirrus_mmio_readb(opaque
, addr
+ 3);
2693 v
= cirrus_mmio_readb(opaque
, addr
);
2694 v
|= cirrus_mmio_readb(opaque
, addr
+ 1) << 8;
2695 v
|= cirrus_mmio_readb(opaque
, addr
+ 2) << 16;
2696 v
|= cirrus_mmio_readb(opaque
, addr
+ 3) << 24;
2701 static void cirrus_mmio_writeb(void *opaque
, target_phys_addr_t addr
,
2704 CirrusVGAState
*s
= (CirrusVGAState
*) opaque
;
2706 addr
&= CIRRUS_PNPMMIO_SIZE
- 1;
2708 if (addr
>= 0x100) {
2709 cirrus_mmio_blt_write(s
, addr
- 0x100, val
);
2711 vga_ioport_write(s
, addr
+ 0x3c0, val
);
2715 static void cirrus_mmio_writew(void *opaque
, target_phys_addr_t addr
,
2718 #ifdef TARGET_WORDS_BIGENDIAN
2719 cirrus_mmio_writeb(opaque
, addr
, (val
>> 8) & 0xff);
2720 cirrus_mmio_writeb(opaque
, addr
+ 1, val
& 0xff);
2722 cirrus_mmio_writeb(opaque
, addr
, val
& 0xff);
2723 cirrus_mmio_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2727 static void cirrus_mmio_writel(void *opaque
, target_phys_addr_t addr
,
2730 #ifdef TARGET_WORDS_BIGENDIAN
2731 cirrus_mmio_writeb(opaque
, addr
, (val
>> 24) & 0xff);
2732 cirrus_mmio_writeb(opaque
, addr
+ 1, (val
>> 16) & 0xff);
2733 cirrus_mmio_writeb(opaque
, addr
+ 2, (val
>> 8) & 0xff);
2734 cirrus_mmio_writeb(opaque
, addr
+ 3, val
& 0xff);
2736 cirrus_mmio_writeb(opaque
, addr
, val
& 0xff);
2737 cirrus_mmio_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2738 cirrus_mmio_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
2739 cirrus_mmio_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
2744 static CPUReadMemoryFunc
*cirrus_mmio_read
[3] = {
2750 static CPUWriteMemoryFunc
*cirrus_mmio_write
[3] = {
2756 /***************************************
2760 ***************************************/
2762 static void cirrus_init_common(CirrusVGAState
* s
, int device_id
, int is_pci
)
2764 int vga_io_memory
, i
;
2769 for(i
= 0;i
< 256; i
++)
2770 rop_to_index
[i
] = CIRRUS_ROP_NOP_INDEX
; /* nop rop */
2771 rop_to_index
[CIRRUS_ROP_0
] = 0;
2772 rop_to_index
[CIRRUS_ROP_SRC_AND_DST
] = 1;
2773 rop_to_index
[CIRRUS_ROP_NOP
] = 2;
2774 rop_to_index
[CIRRUS_ROP_SRC_AND_NOTDST
] = 3;
2775 rop_to_index
[CIRRUS_ROP_NOTDST
] = 4;
2776 rop_to_index
[CIRRUS_ROP_SRC
] = 5;
2777 rop_to_index
[CIRRUS_ROP_1
] = 6;
2778 rop_to_index
[CIRRUS_ROP_NOTSRC_AND_DST
] = 7;
2779 rop_to_index
[CIRRUS_ROP_SRC_XOR_DST
] = 8;
2780 rop_to_index
[CIRRUS_ROP_SRC_OR_DST
] = 9;
2781 rop_to_index
[CIRRUS_ROP_NOTSRC_OR_NOTDST
] = 10;
2782 rop_to_index
[CIRRUS_ROP_SRC_NOTXOR_DST
] = 11;
2783 rop_to_index
[CIRRUS_ROP_SRC_OR_NOTDST
] = 12;
2784 rop_to_index
[CIRRUS_ROP_NOTSRC
] = 13;
2785 rop_to_index
[CIRRUS_ROP_NOTSRC_OR_DST
] = 14;
2786 rop_to_index
[CIRRUS_ROP_NOTSRC_AND_NOTDST
] = 15;
2789 register_ioport_write(0x3c0, 16, 1, vga_ioport_write
, s
);
2791 register_ioport_write(0x3b4, 2, 1, vga_ioport_write
, s
);
2792 register_ioport_write(0x3d4, 2, 1, vga_ioport_write
, s
);
2793 register_ioport_write(0x3ba, 1, 1, vga_ioport_write
, s
);
2794 register_ioport_write(0x3da, 1, 1, vga_ioport_write
, s
);
2796 register_ioport_read(0x3c0, 16, 1, vga_ioport_read
, s
);
2798 register_ioport_read(0x3b4, 2, 1, vga_ioport_read
, s
);
2799 register_ioport_read(0x3d4, 2, 1, vga_ioport_read
, s
);
2800 register_ioport_read(0x3ba, 1, 1, vga_ioport_read
, s
);
2801 register_ioport_read(0x3da, 1, 1, vga_ioport_read
, s
);
2803 vga_io_memory
= cpu_register_io_memory(0, cirrus_vga_mem_read
,
2804 cirrus_vga_mem_write
, s
);
2805 cpu_register_physical_memory(isa_mem_base
+ 0x000a0000, 0x20000,
2809 if (device_id
== CIRRUS_ID_CLGD5446
) {
2810 /* 4MB 64 bit memory config, always PCI */
2811 s
->sr
[0x1F] = 0x2d; // MemClock
2812 s
->gr
[0x18] = 0x0f; // fastest memory configuration
2816 s
->sr
[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2817 s
->real_vram_size
= 4096 * 1024;
2821 s
->sr
[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2822 s
->real_vram_size
= 2048 * 1024;
2825 s
->sr
[0x1F] = 0x22; // MemClock
2826 s
->sr
[0x0F] = CIRRUS_MEMSIZE_2M
;
2828 s
->sr
[0x17] = CIRRUS_BUSTYPE_PCI
;
2830 s
->sr
[0x17] = CIRRUS_BUSTYPE_ISA
;
2831 s
->real_vram_size
= 2048 * 1024;
2832 s
->sr
[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2834 s
->cr
[0x27] = device_id
;
2836 /* Win2K seems to assume that the pattern buffer is at 0xff
2838 memset(s
->vram_ptr
, 0xff, s
->real_vram_size
);
2840 s
->cirrus_hidden_dac_lockindex
= 5;
2841 s
->cirrus_hidden_dac_data
= 0;
2843 /* I/O handler for LFB */
2844 s
->cirrus_linear_io_addr
=
2845 cpu_register_io_memory(0, cirrus_linear_read
, cirrus_linear_write
,
2847 /* I/O handler for LFB */
2848 s
->cirrus_linear_bitblt_io_addr
=
2849 cpu_register_io_memory(0, cirrus_linear_bitblt_read
, cirrus_linear_bitblt_write
,
2852 /* I/O handler for memory-mapped I/O */
2853 s
->cirrus_mmio_io_addr
=
2854 cpu_register_io_memory(0, cirrus_mmio_read
, cirrus_mmio_write
, s
);
2856 /* XXX: s->vram_size must be a power of two */
2857 s
->cirrus_addr_mask
= s
->real_vram_size
- 1;
2858 s
->linear_mmio_mask
= s
->real_vram_size
- 256;
2860 s
->get_bpp
= cirrus_get_bpp
;
2861 s
->get_offsets
= cirrus_get_offsets
;
2862 s
->get_resolution
= cirrus_get_resolution
;
2863 s
->cursor_invalidate
= cirrus_cursor_invalidate
;
2864 s
->cursor_draw_line
= cirrus_cursor_draw_line
;
2867 /***************************************
2871 ***************************************/
2873 void isa_cirrus_vga_init(DisplayState
*ds
, uint8_t *vga_ram_base
,
2874 unsigned long vga_ram_offset
, int vga_ram_size
)
2878 s
= qemu_mallocz(sizeof(CirrusVGAState
));
2880 vga_common_init((VGAState
*)s
,
2881 ds
, vga_ram_base
, vga_ram_offset
, vga_ram_size
);
2882 cirrus_init_common(s
, CIRRUS_ID_CLGD5430
, 0);
2883 /* XXX ISA-LFB support */
2886 /***************************************
2890 ***************************************/
2892 static void cirrus_pci_lfb_map(PCIDevice
*d
, int region_num
,
2893 uint32_t addr
, uint32_t size
, int type
)
2895 CirrusVGAState
*s
= &((PCICirrusVGAState
*)d
)->cirrus_vga
;
2897 /* XXX: add byte swapping apertures */
2898 cpu_register_physical_memory(addr
, s
->vram_size
,
2899 s
->cirrus_linear_io_addr
);
2900 cpu_register_physical_memory(addr
+ 0x1000000, 0x400000,
2901 s
->cirrus_linear_bitblt_io_addr
);
2904 static void cirrus_pci_mmio_map(PCIDevice
*d
, int region_num
,
2905 uint32_t addr
, uint32_t size
, int type
)
2907 CirrusVGAState
*s
= &((PCICirrusVGAState
*)d
)->cirrus_vga
;
2909 cpu_register_physical_memory(addr
, CIRRUS_PNPMMIO_SIZE
,
2910 s
->cirrus_mmio_io_addr
);
2913 void pci_cirrus_vga_init(PCIBus
*bus
, DisplayState
*ds
, uint8_t *vga_ram_base
,
2914 unsigned long vga_ram_offset
, int vga_ram_size
)
2916 PCICirrusVGAState
*d
;
2921 device_id
= CIRRUS_ID_CLGD5446
;
2923 /* setup PCI configuration registers */
2924 d
= (PCICirrusVGAState
*)pci_register_device(bus
, "Cirrus VGA",
2925 sizeof(PCICirrusVGAState
),
2927 pci_conf
= d
->dev
.config
;
2928 pci_conf
[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS
& 0xff);
2929 pci_conf
[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS
>> 8);
2930 pci_conf
[0x02] = (uint8_t) (device_id
& 0xff);
2931 pci_conf
[0x03] = (uint8_t) (device_id
>> 8);
2932 pci_conf
[0x04] = PCI_COMMAND_IOACCESS
| PCI_COMMAND_MEMACCESS
;
2933 pci_conf
[0x0a] = PCI_CLASS_SUB_VGA
;
2934 pci_conf
[0x0b] = PCI_CLASS_BASE_DISPLAY
;
2935 pci_conf
[0x0e] = PCI_CLASS_HEADERTYPE_00h
;
2939 vga_common_init((VGAState
*)s
,
2940 ds
, vga_ram_base
, vga_ram_offset
, vga_ram_size
);
2941 cirrus_init_common(s
, device_id
, 1);
2943 /* setup memory space */
2945 /* memory #1 memory-mapped I/O */
2946 /* XXX: s->vram_size must be a power of two */
2947 pci_register_io_region((PCIDevice
*)d
, 0, 0x2000000,
2948 PCI_ADDRESS_SPACE_MEM_PREFETCH
, cirrus_pci_lfb_map
);
2949 if (device_id
== CIRRUS_ID_CLGD5446
) {
2950 pci_register_io_region((PCIDevice
*)d
, 1, CIRRUS_PNPMMIO_SIZE
,
2951 PCI_ADDRESS_SPACE_MEM
, cirrus_pci_mmio_map
);