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1/*
2 * QEMU Cirrus CLGD 54xx VGA Emulator.
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 * Copyright (c) 2004 Makoto Suzuki (suzu)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25/*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
29#include "hw.h"
30#include "pc.h"
31#include "pci.h"
32#include "console.h"
33#include "vga_int.h"
34#include "loader.h"
35
36/*
37 * TODO:
38 * - destination write mask support not complete (bits 5..7)
39 * - optimize linear mappings
40 * - optimize bitblt functions
41 */
42
43//#define DEBUG_CIRRUS
44//#define DEBUG_BITBLT
45
46/***************************************
47 *
48 * definitions
49 *
50 ***************************************/
51
52// ID
53#define CIRRUS_ID_CLGD5422 (0x23<<2)
54#define CIRRUS_ID_CLGD5426 (0x24<<2)
55#define CIRRUS_ID_CLGD5424 (0x25<<2)
56#define CIRRUS_ID_CLGD5428 (0x26<<2)
57#define CIRRUS_ID_CLGD5430 (0x28<<2)
58#define CIRRUS_ID_CLGD5434 (0x2A<<2)
59#define CIRRUS_ID_CLGD5436 (0x2B<<2)
60#define CIRRUS_ID_CLGD5446 (0x2E<<2)
61
62// sequencer 0x07
63#define CIRRUS_SR7_BPP_VGA 0x00
64#define CIRRUS_SR7_BPP_SVGA 0x01
65#define CIRRUS_SR7_BPP_MASK 0x0e
66#define CIRRUS_SR7_BPP_8 0x00
67#define CIRRUS_SR7_BPP_16_DOUBLEVCLK 0x02
68#define CIRRUS_SR7_BPP_24 0x04
69#define CIRRUS_SR7_BPP_16 0x06
70#define CIRRUS_SR7_BPP_32 0x08
71#define CIRRUS_SR7_ISAADDR_MASK 0xe0
72
73// sequencer 0x0f
74#define CIRRUS_MEMSIZE_512k 0x08
75#define CIRRUS_MEMSIZE_1M 0x10
76#define CIRRUS_MEMSIZE_2M 0x18
77#define CIRRUS_MEMFLAGS_BANKSWITCH 0x80 // bank switching is enabled.
78
79// sequencer 0x12
80#define CIRRUS_CURSOR_SHOW 0x01
81#define CIRRUS_CURSOR_HIDDENPEL 0x02
82#define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
83
84// sequencer 0x17
85#define CIRRUS_BUSTYPE_VLBFAST 0x10
86#define CIRRUS_BUSTYPE_PCI 0x20
87#define CIRRUS_BUSTYPE_VLBSLOW 0x30
88#define CIRRUS_BUSTYPE_ISA 0x38
89#define CIRRUS_MMIO_ENABLE 0x04
90#define CIRRUS_MMIO_USE_PCIADDR 0x40 // 0xb8000 if cleared.
91#define CIRRUS_MEMSIZEEXT_DOUBLE 0x80
92
93// control 0x0b
94#define CIRRUS_BANKING_DUAL 0x01
95#define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
96
97// control 0x30
98#define CIRRUS_BLTMODE_BACKWARDS 0x01
99#define CIRRUS_BLTMODE_MEMSYSDEST 0x02
100#define CIRRUS_BLTMODE_MEMSYSSRC 0x04
101#define CIRRUS_BLTMODE_TRANSPARENTCOMP 0x08
102#define CIRRUS_BLTMODE_PATTERNCOPY 0x40
103#define CIRRUS_BLTMODE_COLOREXPAND 0x80
104#define CIRRUS_BLTMODE_PIXELWIDTHMASK 0x30
105#define CIRRUS_BLTMODE_PIXELWIDTH8 0x00
106#define CIRRUS_BLTMODE_PIXELWIDTH16 0x10
107#define CIRRUS_BLTMODE_PIXELWIDTH24 0x20
108#define CIRRUS_BLTMODE_PIXELWIDTH32 0x30
109
110// control 0x31
111#define CIRRUS_BLT_BUSY 0x01
112#define CIRRUS_BLT_START 0x02
113#define CIRRUS_BLT_RESET 0x04
114#define CIRRUS_BLT_FIFOUSED 0x10
115#define CIRRUS_BLT_AUTOSTART 0x80
116
117// control 0x32
118#define CIRRUS_ROP_0 0x00
119#define CIRRUS_ROP_SRC_AND_DST 0x05
120#define CIRRUS_ROP_NOP 0x06
121#define CIRRUS_ROP_SRC_AND_NOTDST 0x09
122#define CIRRUS_ROP_NOTDST 0x0b
123#define CIRRUS_ROP_SRC 0x0d
124#define CIRRUS_ROP_1 0x0e
125#define CIRRUS_ROP_NOTSRC_AND_DST 0x50
126#define CIRRUS_ROP_SRC_XOR_DST 0x59
127#define CIRRUS_ROP_SRC_OR_DST 0x6d
128#define CIRRUS_ROP_NOTSRC_OR_NOTDST 0x90
129#define CIRRUS_ROP_SRC_NOTXOR_DST 0x95
130#define CIRRUS_ROP_SRC_OR_NOTDST 0xad
131#define CIRRUS_ROP_NOTSRC 0xd0
132#define CIRRUS_ROP_NOTSRC_OR_DST 0xd6
133#define CIRRUS_ROP_NOTSRC_AND_NOTDST 0xda
134
135#define CIRRUS_ROP_NOP_INDEX 2
136#define CIRRUS_ROP_SRC_INDEX 5
137
138// control 0x33
139#define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
140#define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
141#define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
142
143// memory-mapped IO
144#define CIRRUS_MMIO_BLTBGCOLOR 0x00 // dword
145#define CIRRUS_MMIO_BLTFGCOLOR 0x04 // dword
146#define CIRRUS_MMIO_BLTWIDTH 0x08 // word
147#define CIRRUS_MMIO_BLTHEIGHT 0x0a // word
148#define CIRRUS_MMIO_BLTDESTPITCH 0x0c // word
149#define CIRRUS_MMIO_BLTSRCPITCH 0x0e // word
150#define CIRRUS_MMIO_BLTDESTADDR 0x10 // dword
151#define CIRRUS_MMIO_BLTSRCADDR 0x14 // dword
152#define CIRRUS_MMIO_BLTWRITEMASK 0x17 // byte
153#define CIRRUS_MMIO_BLTMODE 0x18 // byte
154#define CIRRUS_MMIO_BLTROP 0x1a // byte
155#define CIRRUS_MMIO_BLTMODEEXT 0x1b // byte
156#define CIRRUS_MMIO_BLTTRANSPARENTCOLOR 0x1c // word?
157#define CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK 0x20 // word?
158#define CIRRUS_MMIO_LINEARDRAW_START_X 0x24 // word
159#define CIRRUS_MMIO_LINEARDRAW_START_Y 0x26 // word
160#define CIRRUS_MMIO_LINEARDRAW_END_X 0x28 // word
161#define CIRRUS_MMIO_LINEARDRAW_END_Y 0x2a // word
162#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_INC 0x2c // byte
163#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ROLLOVER 0x2d // byte
164#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_MASK 0x2e // byte
165#define CIRRUS_MMIO_LINEARDRAW_LINESTYLE_ACCUM 0x2f // byte
166#define CIRRUS_MMIO_BRESENHAM_K1 0x30 // word
167#define CIRRUS_MMIO_BRESENHAM_K3 0x32 // word
168#define CIRRUS_MMIO_BRESENHAM_ERROR 0x34 // word
169#define CIRRUS_MMIO_BRESENHAM_DELTA_MAJOR 0x36 // word
170#define CIRRUS_MMIO_BRESENHAM_DIRECTION 0x38 // byte
171#define CIRRUS_MMIO_LINEDRAW_MODE 0x39 // byte
172#define CIRRUS_MMIO_BLTSTATUS 0x40 // byte
173
174#define CIRRUS_PNPMMIO_SIZE 0x1000
175
176#define BLTUNSAFE(s) \
177 ( \
178 ( /* check dst is within bounds */ \
179 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
180 + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
181 (s)->vga.vram_size \
182 ) || \
183 ( /* check src is within bounds */ \
184 (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
185 + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
186 (s)->vga.vram_size \
187 ) \
188 )
189
190struct CirrusVGAState;
191typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
192 uint8_t * dst, const uint8_t * src,
193 int dstpitch, int srcpitch,
194 int bltwidth, int bltheight);
195typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
196 uint8_t *dst, int dst_pitch, int width, int height);
197
198typedef struct CirrusVGAState {
199 VGACommonState vga;
200
201 MemoryRegion cirrus_linear_io;
202 MemoryRegion cirrus_linear_bitblt_io;
203 MemoryRegion cirrus_mmio_io;
204 MemoryRegion pci_bar;
205 bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
206 MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
207 MemoryRegion low_mem; /* always mapped, overridden by: */
208 MemoryRegion *cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
209 uint32_t cirrus_addr_mask;
210 uint32_t linear_mmio_mask;
211 uint8_t cirrus_shadow_gr0;
212 uint8_t cirrus_shadow_gr1;
213 uint8_t cirrus_hidden_dac_lockindex;
214 uint8_t cirrus_hidden_dac_data;
215 uint32_t cirrus_bank_base[2];
216 uint32_t cirrus_bank_limit[2];
217 uint8_t cirrus_hidden_palette[48];
218 uint32_t hw_cursor_x;
219 uint32_t hw_cursor_y;
220 int cirrus_blt_pixelwidth;
221 int cirrus_blt_width;
222 int cirrus_blt_height;
223 int cirrus_blt_dstpitch;
224 int cirrus_blt_srcpitch;
225 uint32_t cirrus_blt_fgcol;
226 uint32_t cirrus_blt_bgcol;
227 uint32_t cirrus_blt_dstaddr;
228 uint32_t cirrus_blt_srcaddr;
229 uint8_t cirrus_blt_mode;
230 uint8_t cirrus_blt_modeext;
231 cirrus_bitblt_rop_t cirrus_rop;
232#define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
233 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
234 uint8_t *cirrus_srcptr;
235 uint8_t *cirrus_srcptr_end;
236 uint32_t cirrus_srccounter;
237 /* hwcursor display state */
238 int last_hw_cursor_size;
239 int last_hw_cursor_x;
240 int last_hw_cursor_y;
241 int last_hw_cursor_y_start;
242 int last_hw_cursor_y_end;
243 int real_vram_size; /* XXX: suppress that */
244 int device_id;
245 int bustype;
246} CirrusVGAState;
247
248typedef struct PCICirrusVGAState {
249 PCIDevice dev;
250 CirrusVGAState cirrus_vga;
251} PCICirrusVGAState;
252
253static uint8_t rop_to_index[256];
254
255/***************************************
256 *
257 * prototypes.
258 *
259 ***************************************/
260
261
262static void cirrus_bitblt_reset(CirrusVGAState *s);
263static void cirrus_update_memory_access(CirrusVGAState *s);
264
265/***************************************
266 *
267 * raster operations
268 *
269 ***************************************/
270
271static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
272 uint8_t *dst,const uint8_t *src,
273 int dstpitch,int srcpitch,
274 int bltwidth,int bltheight)
275{
276}
277
278static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
279 uint8_t *dst,
280 int dstpitch, int bltwidth,int bltheight)
281{
282}
283
284#define ROP_NAME 0
285#define ROP_FN(d, s) 0
286#include "cirrus_vga_rop.h"
287
288#define ROP_NAME src_and_dst
289#define ROP_FN(d, s) (s) & (d)
290#include "cirrus_vga_rop.h"
291
292#define ROP_NAME src_and_notdst
293#define ROP_FN(d, s) (s) & (~(d))
294#include "cirrus_vga_rop.h"
295
296#define ROP_NAME notdst
297#define ROP_FN(d, s) ~(d)
298#include "cirrus_vga_rop.h"
299
300#define ROP_NAME src
301#define ROP_FN(d, s) s
302#include "cirrus_vga_rop.h"
303
304#define ROP_NAME 1
305#define ROP_FN(d, s) ~0
306#include "cirrus_vga_rop.h"
307
308#define ROP_NAME notsrc_and_dst
309#define ROP_FN(d, s) (~(s)) & (d)
310#include "cirrus_vga_rop.h"
311
312#define ROP_NAME src_xor_dst
313#define ROP_FN(d, s) (s) ^ (d)
314#include "cirrus_vga_rop.h"
315
316#define ROP_NAME src_or_dst
317#define ROP_FN(d, s) (s) | (d)
318#include "cirrus_vga_rop.h"
319
320#define ROP_NAME notsrc_or_notdst
321#define ROP_FN(d, s) (~(s)) | (~(d))
322#include "cirrus_vga_rop.h"
323
324#define ROP_NAME src_notxor_dst
325#define ROP_FN(d, s) ~((s) ^ (d))
326#include "cirrus_vga_rop.h"
327
328#define ROP_NAME src_or_notdst
329#define ROP_FN(d, s) (s) | (~(d))
330#include "cirrus_vga_rop.h"
331
332#define ROP_NAME notsrc
333#define ROP_FN(d, s) (~(s))
334#include "cirrus_vga_rop.h"
335
336#define ROP_NAME notsrc_or_dst
337#define ROP_FN(d, s) (~(s)) | (d)
338#include "cirrus_vga_rop.h"
339
340#define ROP_NAME notsrc_and_notdst
341#define ROP_FN(d, s) (~(s)) & (~(d))
342#include "cirrus_vga_rop.h"
343
344static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
345 cirrus_bitblt_rop_fwd_0,
346 cirrus_bitblt_rop_fwd_src_and_dst,
347 cirrus_bitblt_rop_nop,
348 cirrus_bitblt_rop_fwd_src_and_notdst,
349 cirrus_bitblt_rop_fwd_notdst,
350 cirrus_bitblt_rop_fwd_src,
351 cirrus_bitblt_rop_fwd_1,
352 cirrus_bitblt_rop_fwd_notsrc_and_dst,
353 cirrus_bitblt_rop_fwd_src_xor_dst,
354 cirrus_bitblt_rop_fwd_src_or_dst,
355 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
356 cirrus_bitblt_rop_fwd_src_notxor_dst,
357 cirrus_bitblt_rop_fwd_src_or_notdst,
358 cirrus_bitblt_rop_fwd_notsrc,
359 cirrus_bitblt_rop_fwd_notsrc_or_dst,
360 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
361};
362
363static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
364 cirrus_bitblt_rop_bkwd_0,
365 cirrus_bitblt_rop_bkwd_src_and_dst,
366 cirrus_bitblt_rop_nop,
367 cirrus_bitblt_rop_bkwd_src_and_notdst,
368 cirrus_bitblt_rop_bkwd_notdst,
369 cirrus_bitblt_rop_bkwd_src,
370 cirrus_bitblt_rop_bkwd_1,
371 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
372 cirrus_bitblt_rop_bkwd_src_xor_dst,
373 cirrus_bitblt_rop_bkwd_src_or_dst,
374 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
375 cirrus_bitblt_rop_bkwd_src_notxor_dst,
376 cirrus_bitblt_rop_bkwd_src_or_notdst,
377 cirrus_bitblt_rop_bkwd_notsrc,
378 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
379 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
380};
381
382#define TRANSP_ROP(name) {\
383 name ## _8,\
384 name ## _16,\
385 }
386#define TRANSP_NOP(func) {\
387 func,\
388 func,\
389 }
390
391static const cirrus_bitblt_rop_t cirrus_fwd_transp_rop[16][2] = {
392 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_0),
393 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_dst),
394 TRANSP_NOP(cirrus_bitblt_rop_nop),
395 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_and_notdst),
396 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notdst),
397 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src),
398 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_1),
399 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_dst),
400 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_xor_dst),
401 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_dst),
402 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_notdst),
403 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_notxor_dst),
404 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_src_or_notdst),
405 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc),
406 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_or_dst),
407 TRANSP_ROP(cirrus_bitblt_rop_fwd_transp_notsrc_and_notdst),
408};
409
410static const cirrus_bitblt_rop_t cirrus_bkwd_transp_rop[16][2] = {
411 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_0),
412 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_dst),
413 TRANSP_NOP(cirrus_bitblt_rop_nop),
414 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_and_notdst),
415 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notdst),
416 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src),
417 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_1),
418 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_dst),
419 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_xor_dst),
420 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_dst),
421 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_notdst),
422 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_notxor_dst),
423 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_src_or_notdst),
424 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc),
425 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_or_dst),
426 TRANSP_ROP(cirrus_bitblt_rop_bkwd_transp_notsrc_and_notdst),
427};
428
429#define ROP2(name) {\
430 name ## _8,\
431 name ## _16,\
432 name ## _24,\
433 name ## _32,\
434 }
435
436#define ROP_NOP2(func) {\
437 func,\
438 func,\
439 func,\
440 func,\
441 }
442
443static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
444 ROP2(cirrus_patternfill_0),
445 ROP2(cirrus_patternfill_src_and_dst),
446 ROP_NOP2(cirrus_bitblt_rop_nop),
447 ROP2(cirrus_patternfill_src_and_notdst),
448 ROP2(cirrus_patternfill_notdst),
449 ROP2(cirrus_patternfill_src),
450 ROP2(cirrus_patternfill_1),
451 ROP2(cirrus_patternfill_notsrc_and_dst),
452 ROP2(cirrus_patternfill_src_xor_dst),
453 ROP2(cirrus_patternfill_src_or_dst),
454 ROP2(cirrus_patternfill_notsrc_or_notdst),
455 ROP2(cirrus_patternfill_src_notxor_dst),
456 ROP2(cirrus_patternfill_src_or_notdst),
457 ROP2(cirrus_patternfill_notsrc),
458 ROP2(cirrus_patternfill_notsrc_or_dst),
459 ROP2(cirrus_patternfill_notsrc_and_notdst),
460};
461
462static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
463 ROP2(cirrus_colorexpand_transp_0),
464 ROP2(cirrus_colorexpand_transp_src_and_dst),
465 ROP_NOP2(cirrus_bitblt_rop_nop),
466 ROP2(cirrus_colorexpand_transp_src_and_notdst),
467 ROP2(cirrus_colorexpand_transp_notdst),
468 ROP2(cirrus_colorexpand_transp_src),
469 ROP2(cirrus_colorexpand_transp_1),
470 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
471 ROP2(cirrus_colorexpand_transp_src_xor_dst),
472 ROP2(cirrus_colorexpand_transp_src_or_dst),
473 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
474 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
475 ROP2(cirrus_colorexpand_transp_src_or_notdst),
476 ROP2(cirrus_colorexpand_transp_notsrc),
477 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
478 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
479};
480
481static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
482 ROP2(cirrus_colorexpand_0),
483 ROP2(cirrus_colorexpand_src_and_dst),
484 ROP_NOP2(cirrus_bitblt_rop_nop),
485 ROP2(cirrus_colorexpand_src_and_notdst),
486 ROP2(cirrus_colorexpand_notdst),
487 ROP2(cirrus_colorexpand_src),
488 ROP2(cirrus_colorexpand_1),
489 ROP2(cirrus_colorexpand_notsrc_and_dst),
490 ROP2(cirrus_colorexpand_src_xor_dst),
491 ROP2(cirrus_colorexpand_src_or_dst),
492 ROP2(cirrus_colorexpand_notsrc_or_notdst),
493 ROP2(cirrus_colorexpand_src_notxor_dst),
494 ROP2(cirrus_colorexpand_src_or_notdst),
495 ROP2(cirrus_colorexpand_notsrc),
496 ROP2(cirrus_colorexpand_notsrc_or_dst),
497 ROP2(cirrus_colorexpand_notsrc_and_notdst),
498};
499
500static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
501 ROP2(cirrus_colorexpand_pattern_transp_0),
502 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
503 ROP_NOP2(cirrus_bitblt_rop_nop),
504 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
505 ROP2(cirrus_colorexpand_pattern_transp_notdst),
506 ROP2(cirrus_colorexpand_pattern_transp_src),
507 ROP2(cirrus_colorexpand_pattern_transp_1),
508 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
509 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
510 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
511 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
512 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
513 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
514 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
515 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
516 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
517};
518
519static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
520 ROP2(cirrus_colorexpand_pattern_0),
521 ROP2(cirrus_colorexpand_pattern_src_and_dst),
522 ROP_NOP2(cirrus_bitblt_rop_nop),
523 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
524 ROP2(cirrus_colorexpand_pattern_notdst),
525 ROP2(cirrus_colorexpand_pattern_src),
526 ROP2(cirrus_colorexpand_pattern_1),
527 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
528 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
529 ROP2(cirrus_colorexpand_pattern_src_or_dst),
530 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
531 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
532 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
533 ROP2(cirrus_colorexpand_pattern_notsrc),
534 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
535 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
536};
537
538static const cirrus_fill_t cirrus_fill[16][4] = {
539 ROP2(cirrus_fill_0),
540 ROP2(cirrus_fill_src_and_dst),
541 ROP_NOP2(cirrus_bitblt_fill_nop),
542 ROP2(cirrus_fill_src_and_notdst),
543 ROP2(cirrus_fill_notdst),
544 ROP2(cirrus_fill_src),
545 ROP2(cirrus_fill_1),
546 ROP2(cirrus_fill_notsrc_and_dst),
547 ROP2(cirrus_fill_src_xor_dst),
548 ROP2(cirrus_fill_src_or_dst),
549 ROP2(cirrus_fill_notsrc_or_notdst),
550 ROP2(cirrus_fill_src_notxor_dst),
551 ROP2(cirrus_fill_src_or_notdst),
552 ROP2(cirrus_fill_notsrc),
553 ROP2(cirrus_fill_notsrc_or_dst),
554 ROP2(cirrus_fill_notsrc_and_notdst),
555};
556
557static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
558{
559 unsigned int color;
560 switch (s->cirrus_blt_pixelwidth) {
561 case 1:
562 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
563 break;
564 case 2:
565 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8);
566 s->cirrus_blt_fgcol = le16_to_cpu(color);
567 break;
568 case 3:
569 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
570 (s->vga.gr[0x11] << 8) | (s->vga.gr[0x13] << 16);
571 break;
572 default:
573 case 4:
574 color = s->cirrus_shadow_gr1 | (s->vga.gr[0x11] << 8) |
575 (s->vga.gr[0x13] << 16) | (s->vga.gr[0x15] << 24);
576 s->cirrus_blt_fgcol = le32_to_cpu(color);
577 break;
578 }
579}
580
581static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
582{
583 unsigned int color;
584 switch (s->cirrus_blt_pixelwidth) {
585 case 1:
586 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
587 break;
588 case 2:
589 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8);
590 s->cirrus_blt_bgcol = le16_to_cpu(color);
591 break;
592 case 3:
593 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
594 (s->vga.gr[0x10] << 8) | (s->vga.gr[0x12] << 16);
595 break;
596 default:
597 case 4:
598 color = s->cirrus_shadow_gr0 | (s->vga.gr[0x10] << 8) |
599 (s->vga.gr[0x12] << 16) | (s->vga.gr[0x14] << 24);
600 s->cirrus_blt_bgcol = le32_to_cpu(color);
601 break;
602 }
603}
604
605static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
606 int off_pitch, int bytesperline,
607 int lines)
608{
609 int y;
610 int off_cur;
611 int off_cur_end;
612
613 for (y = 0; y < lines; y++) {
614 off_cur = off_begin;
615 off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
616 off_cur &= TARGET_PAGE_MASK;
617 while (off_cur < off_cur_end) {
618 memory_region_set_dirty(&s->vga.vram, off_cur);
619 off_cur += TARGET_PAGE_SIZE;
620 }
621 off_begin += off_pitch;
622 }
623}
624
625static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
626 const uint8_t * src)
627{
628 uint8_t *dst;
629
630 dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
631
632 if (BLTUNSAFE(s))
633 return 0;
634
635 (*s->cirrus_rop) (s, dst, src,
636 s->cirrus_blt_dstpitch, 0,
637 s->cirrus_blt_width, s->cirrus_blt_height);
638 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
639 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
640 s->cirrus_blt_height);
641 return 1;
642}
643
644/* fill */
645
646static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
647{
648 cirrus_fill_t rop_func;
649
650 if (BLTUNSAFE(s))
651 return 0;
652 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
653 rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
654 s->cirrus_blt_dstpitch,
655 s->cirrus_blt_width, s->cirrus_blt_height);
656 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
657 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
658 s->cirrus_blt_height);
659 cirrus_bitblt_reset(s);
660 return 1;
661}
662
663/***************************************
664 *
665 * bitblt (video-to-video)
666 *
667 ***************************************/
668
669static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
670{
671 return cirrus_bitblt_common_patterncopy(s,
672 s->vga.vram_ptr + ((s->cirrus_blt_srcaddr & ~7) &
673 s->cirrus_addr_mask));
674}
675
676static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
677{
678 int sx = 0, sy = 0;
679 int dx = 0, dy = 0;
680 int depth = 0;
681 int notify = 0;
682
683 /* make sure to only copy if it's a plain copy ROP */
684 if (*s->cirrus_rop == cirrus_bitblt_rop_fwd_src ||
685 *s->cirrus_rop == cirrus_bitblt_rop_bkwd_src) {
686
687 int width, height;
688
689 depth = s->vga.get_bpp(&s->vga) / 8;
690 s->vga.get_resolution(&s->vga, &width, &height);
691
692 /* extra x, y */
693 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
694 sy = (src / ABS(s->cirrus_blt_srcpitch));
695 dx = (dst % ABS(s->cirrus_blt_dstpitch)) / depth;
696 dy = (dst / ABS(s->cirrus_blt_dstpitch));
697
698 /* normalize width */
699 w /= depth;
700
701 /* if we're doing a backward copy, we have to adjust
702 our x/y to be the upper left corner (instead of the lower
703 right corner) */
704 if (s->cirrus_blt_dstpitch < 0) {
705 sx -= (s->cirrus_blt_width / depth) - 1;
706 dx -= (s->cirrus_blt_width / depth) - 1;
707 sy -= s->cirrus_blt_height - 1;
708 dy -= s->cirrus_blt_height - 1;
709 }
710
711 /* are we in the visible portion of memory? */
712 if (sx >= 0 && sy >= 0 && dx >= 0 && dy >= 0 &&
713 (sx + w) <= width && (sy + h) <= height &&
714 (dx + w) <= width && (dy + h) <= height) {
715 notify = 1;
716 }
717 }
718
719 /* we have to flush all pending changes so that the copy
720 is generated at the appropriate moment in time */
721 if (notify)
722 vga_hw_update();
723
724 (*s->cirrus_rop) (s, s->vga.vram_ptr +
725 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
726 s->vga.vram_ptr +
727 (s->cirrus_blt_srcaddr & s->cirrus_addr_mask),
728 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
729 s->cirrus_blt_width, s->cirrus_blt_height);
730
731 if (notify)
732 qemu_console_copy(s->vga.ds,
733 sx, sy, dx, dy,
734 s->cirrus_blt_width / depth,
735 s->cirrus_blt_height);
736
737 /* we don't have to notify the display that this portion has
738 changed since qemu_console_copy implies this */
739
740 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
741 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
742 s->cirrus_blt_height);
743}
744
745static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
746{
747 if (BLTUNSAFE(s))
748 return 0;
749
750 cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,
751 s->cirrus_blt_srcaddr - s->vga.start_addr,
752 s->cirrus_blt_width, s->cirrus_blt_height);
753
754 return 1;
755}
756
757/***************************************
758 *
759 * bitblt (cpu-to-video)
760 *
761 ***************************************/
762
763static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
764{
765 int copy_count;
766 uint8_t *end_ptr;
767
768 if (s->cirrus_srccounter > 0) {
769 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
770 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
771 the_end:
772 s->cirrus_srccounter = 0;
773 cirrus_bitblt_reset(s);
774 } else {
775 /* at least one scan line */
776 do {
777 (*s->cirrus_rop)(s, s->vga.vram_ptr +
778 (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
779 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
780 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
781 s->cirrus_blt_width, 1);
782 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
783 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
784 if (s->cirrus_srccounter <= 0)
785 goto the_end;
786 /* more bytes than needed can be transfered because of
787 word alignment, so we keep them for the next line */
788 /* XXX: keep alignment to speed up transfer */
789 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
790 copy_count = s->cirrus_srcptr_end - end_ptr;
791 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
792 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
793 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
794 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
795 }
796 }
797}
798
799/***************************************
800 *
801 * bitblt wrapper
802 *
803 ***************************************/
804
805static void cirrus_bitblt_reset(CirrusVGAState * s)
806{
807 int need_update;
808
809 s->vga.gr[0x31] &=
810 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
811 need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0]
812 || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0];
813 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
814 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
815 s->cirrus_srccounter = 0;
816 if (!need_update)
817 return;
818 cirrus_update_memory_access(s);
819}
820
821static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
822{
823 int w;
824
825 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
826 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
827 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
828
829 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
830 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
831 s->cirrus_blt_srcpitch = 8;
832 } else {
833 /* XXX: check for 24 bpp */
834 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
835 }
836 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
837 } else {
838 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
839 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
840 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
841 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
842 else
843 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
844 } else {
845 /* always align input size to 32 bits */
846 s->cirrus_blt_srcpitch = (s->cirrus_blt_width + 3) & ~3;
847 }
848 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
849 }
850 s->cirrus_srcptr = s->cirrus_bltbuf;
851 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
852 cirrus_update_memory_access(s);
853 return 1;
854}
855
856static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
857{
858 /* XXX */
859#ifdef DEBUG_BITBLT
860 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
861#endif
862 return 0;
863}
864
865static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
866{
867 int ret;
868
869 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
870 ret = cirrus_bitblt_videotovideo_patterncopy(s);
871 } else {
872 ret = cirrus_bitblt_videotovideo_copy(s);
873 }
874 if (ret)
875 cirrus_bitblt_reset(s);
876 return ret;
877}
878
879static void cirrus_bitblt_start(CirrusVGAState * s)
880{
881 uint8_t blt_rop;
882
883 s->vga.gr[0x31] |= CIRRUS_BLT_BUSY;
884
885 s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1;
886 s->cirrus_blt_height = (s->vga.gr[0x22] | (s->vga.gr[0x23] << 8)) + 1;
887 s->cirrus_blt_dstpitch = (s->vga.gr[0x24] | (s->vga.gr[0x25] << 8));
888 s->cirrus_blt_srcpitch = (s->vga.gr[0x26] | (s->vga.gr[0x27] << 8));
889 s->cirrus_blt_dstaddr =
890 (s->vga.gr[0x28] | (s->vga.gr[0x29] << 8) | (s->vga.gr[0x2a] << 16));
891 s->cirrus_blt_srcaddr =
892 (s->vga.gr[0x2c] | (s->vga.gr[0x2d] << 8) | (s->vga.gr[0x2e] << 16));
893 s->cirrus_blt_mode = s->vga.gr[0x30];
894 s->cirrus_blt_modeext = s->vga.gr[0x33];
895 blt_rop = s->vga.gr[0x32];
896
897#ifdef DEBUG_BITBLT
898 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",
899 blt_rop,
900 s->cirrus_blt_mode,
901 s->cirrus_blt_modeext,
902 s->cirrus_blt_width,
903 s->cirrus_blt_height,
904 s->cirrus_blt_dstpitch,
905 s->cirrus_blt_srcpitch,
906 s->cirrus_blt_dstaddr,
907 s->cirrus_blt_srcaddr,
908 s->vga.gr[0x2f]);
909#endif
910
911 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
912 case CIRRUS_BLTMODE_PIXELWIDTH8:
913 s->cirrus_blt_pixelwidth = 1;
914 break;
915 case CIRRUS_BLTMODE_PIXELWIDTH16:
916 s->cirrus_blt_pixelwidth = 2;
917 break;
918 case CIRRUS_BLTMODE_PIXELWIDTH24:
919 s->cirrus_blt_pixelwidth = 3;
920 break;
921 case CIRRUS_BLTMODE_PIXELWIDTH32:
922 s->cirrus_blt_pixelwidth = 4;
923 break;
924 default:
925#ifdef DEBUG_BITBLT
926 printf("cirrus: bitblt - pixel width is unknown\n");
927#endif
928 goto bitblt_ignore;
929 }
930 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
931
932 if ((s->
933 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
934 CIRRUS_BLTMODE_MEMSYSDEST))
935 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
936#ifdef DEBUG_BITBLT
937 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
938#endif
939 goto bitblt_ignore;
940 }
941
942 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
943 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
944 CIRRUS_BLTMODE_TRANSPARENTCOMP |
945 CIRRUS_BLTMODE_PATTERNCOPY |
946 CIRRUS_BLTMODE_COLOREXPAND)) ==
947 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
948 cirrus_bitblt_fgcol(s);
949 cirrus_bitblt_solidfill(s, blt_rop);
950 } else {
951 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
952 CIRRUS_BLTMODE_PATTERNCOPY)) ==
953 CIRRUS_BLTMODE_COLOREXPAND) {
954
955 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
956 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
957 cirrus_bitblt_bgcol(s);
958 else
959 cirrus_bitblt_fgcol(s);
960 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
961 } else {
962 cirrus_bitblt_fgcol(s);
963 cirrus_bitblt_bgcol(s);
964 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
965 }
966 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
967 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
968 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
969 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
970 cirrus_bitblt_bgcol(s);
971 else
972 cirrus_bitblt_fgcol(s);
973 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
974 } else {
975 cirrus_bitblt_fgcol(s);
976 cirrus_bitblt_bgcol(s);
977 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
978 }
979 } else {
980 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
981 }
982 } else {
983 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
984 if (s->cirrus_blt_pixelwidth > 2) {
985 printf("src transparent without colorexpand must be 8bpp or 16bpp\n");
986 goto bitblt_ignore;
987 }
988 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
989 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
990 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
991 s->cirrus_rop = cirrus_bkwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
992 } else {
993 s->cirrus_rop = cirrus_fwd_transp_rop[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
994 }
995 } else {
996 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
997 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
998 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
999 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
1000 } else {
1001 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
1002 }
1003 }
1004 }
1005 // setup bitblt engine.
1006 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
1007 if (!cirrus_bitblt_cputovideo(s))
1008 goto bitblt_ignore;
1009 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
1010 if (!cirrus_bitblt_videotocpu(s))
1011 goto bitblt_ignore;
1012 } else {
1013 if (!cirrus_bitblt_videotovideo(s))
1014 goto bitblt_ignore;
1015 }
1016 }
1017 return;
1018 bitblt_ignore:;
1019 cirrus_bitblt_reset(s);
1020}
1021
1022static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
1023{
1024 unsigned old_value;
1025
1026 old_value = s->vga.gr[0x31];
1027 s->vga.gr[0x31] = reg_value;
1028
1029 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
1030 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
1031 cirrus_bitblt_reset(s);
1032 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
1033 ((reg_value & CIRRUS_BLT_START) != 0)) {
1034 cirrus_bitblt_start(s);
1035 }
1036}
1037
1038
1039/***************************************
1040 *
1041 * basic parameters
1042 *
1043 ***************************************/
1044
1045static void cirrus_get_offsets(VGACommonState *s1,
1046 uint32_t *pline_offset,
1047 uint32_t *pstart_addr,
1048 uint32_t *pline_compare)
1049{
1050 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1051 uint32_t start_addr, line_offset, line_compare;
1052
1053 line_offset = s->vga.cr[0x13]
1054 | ((s->vga.cr[0x1b] & 0x10) << 4);
1055 line_offset <<= 3;
1056 *pline_offset = line_offset;
1057
1058 start_addr = (s->vga.cr[0x0c] << 8)
1059 | s->vga.cr[0x0d]
1060 | ((s->vga.cr[0x1b] & 0x01) << 16)
1061 | ((s->vga.cr[0x1b] & 0x0c) << 15)
1062 | ((s->vga.cr[0x1d] & 0x80) << 12);
1063 *pstart_addr = start_addr;
1064
1065 line_compare = s->vga.cr[0x18] |
1066 ((s->vga.cr[0x07] & 0x10) << 4) |
1067 ((s->vga.cr[0x09] & 0x40) << 3);
1068 *pline_compare = line_compare;
1069}
1070
1071static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
1072{
1073 uint32_t ret = 16;
1074
1075 switch (s->cirrus_hidden_dac_data & 0xf) {
1076 case 0:
1077 ret = 15;
1078 break; /* Sierra HiColor */
1079 case 1:
1080 ret = 16;
1081 break; /* XGA HiColor */
1082 default:
1083#ifdef DEBUG_CIRRUS
1084 printf("cirrus: invalid DAC value %x in 16bpp\n",
1085 (s->cirrus_hidden_dac_data & 0xf));
1086#endif
1087 ret = 15; /* XXX */
1088 break;
1089 }
1090 return ret;
1091}
1092
1093static int cirrus_get_bpp(VGACommonState *s1)
1094{
1095 CirrusVGAState * s = container_of(s1, CirrusVGAState, vga);
1096 uint32_t ret = 8;
1097
1098 if ((s->vga.sr[0x07] & 0x01) != 0) {
1099 /* Cirrus SVGA */
1100 switch (s->vga.sr[0x07] & CIRRUS_SR7_BPP_MASK) {
1101 case CIRRUS_SR7_BPP_8:
1102 ret = 8;
1103 break;
1104 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
1105 ret = cirrus_get_bpp16_depth(s);
1106 break;
1107 case CIRRUS_SR7_BPP_24:
1108 ret = 24;
1109 break;
1110 case CIRRUS_SR7_BPP_16:
1111 ret = cirrus_get_bpp16_depth(s);
1112 break;
1113 case CIRRUS_SR7_BPP_32:
1114 ret = 32;
1115 break;
1116 default:
1117#ifdef DEBUG_CIRRUS
1118 printf("cirrus: unknown bpp - sr7=%x\n", s->vga.sr[0x7]);
1119#endif
1120 ret = 8;
1121 break;
1122 }
1123 } else {
1124 /* VGA */
1125 ret = 0;
1126 }
1127
1128 return ret;
1129}
1130
1131static void cirrus_get_resolution(VGACommonState *s, int *pwidth, int *pheight)
1132{
1133 int width, height;
1134
1135 width = (s->cr[0x01] + 1) * 8;
1136 height = s->cr[0x12] |
1137 ((s->cr[0x07] & 0x02) << 7) |
1138 ((s->cr[0x07] & 0x40) << 3);
1139 height = (height + 1);
1140 /* interlace support */
1141 if (s->cr[0x1a] & 0x01)
1142 height = height * 2;
1143 *pwidth = width;
1144 *pheight = height;
1145}
1146
1147/***************************************
1148 *
1149 * bank memory
1150 *
1151 ***************************************/
1152
1153static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1154{
1155 unsigned offset;
1156 unsigned limit;
1157
1158 if ((s->vga.gr[0x0b] & 0x01) != 0) /* dual bank */
1159 offset = s->vga.gr[0x09 + bank_index];
1160 else /* single bank */
1161 offset = s->vga.gr[0x09];
1162
1163 if ((s->vga.gr[0x0b] & 0x20) != 0)
1164 offset <<= 14;
1165 else
1166 offset <<= 12;
1167
1168 if (s->real_vram_size <= offset)
1169 limit = 0;
1170 else
1171 limit = s->real_vram_size - offset;
1172
1173 if (((s->vga.gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1174 if (limit > 0x8000) {
1175 offset += 0x8000;
1176 limit -= 0x8000;
1177 } else {
1178 limit = 0;
1179 }
1180 }
1181
1182 if (limit > 0) {
1183 s->cirrus_bank_base[bank_index] = offset;
1184 s->cirrus_bank_limit[bank_index] = limit;
1185 } else {
1186 s->cirrus_bank_base[bank_index] = 0;
1187 s->cirrus_bank_limit[bank_index] = 0;
1188 }
1189}
1190
1191/***************************************
1192 *
1193 * I/O access between 0x3c4-0x3c5
1194 *
1195 ***************************************/
1196
1197static int cirrus_vga_read_sr(CirrusVGAState * s)
1198{
1199 switch (s->vga.sr_index) {
1200 case 0x00: // Standard VGA
1201 case 0x01: // Standard VGA
1202 case 0x02: // Standard VGA
1203 case 0x03: // Standard VGA
1204 case 0x04: // Standard VGA
1205 return s->vga.sr[s->vga.sr_index];
1206 case 0x06: // Unlock Cirrus extensions
1207 return s->vga.sr[s->vga.sr_index];
1208 case 0x10:
1209 case 0x30:
1210 case 0x50:
1211 case 0x70: // Graphics Cursor X
1212 case 0x90:
1213 case 0xb0:
1214 case 0xd0:
1215 case 0xf0: // Graphics Cursor X
1216 return s->vga.sr[0x10];
1217 case 0x11:
1218 case 0x31:
1219 case 0x51:
1220 case 0x71: // Graphics Cursor Y
1221 case 0x91:
1222 case 0xb1:
1223 case 0xd1:
1224 case 0xf1: // Graphics Cursor Y
1225 return s->vga.sr[0x11];
1226 case 0x05: // ???
1227 case 0x07: // Extended Sequencer Mode
1228 case 0x08: // EEPROM Control
1229 case 0x09: // Scratch Register 0
1230 case 0x0a: // Scratch Register 1
1231 case 0x0b: // VCLK 0
1232 case 0x0c: // VCLK 1
1233 case 0x0d: // VCLK 2
1234 case 0x0e: // VCLK 3
1235 case 0x0f: // DRAM Control
1236 case 0x12: // Graphics Cursor Attribute
1237 case 0x13: // Graphics Cursor Pattern Address
1238 case 0x14: // Scratch Register 2
1239 case 0x15: // Scratch Register 3
1240 case 0x16: // Performance Tuning Register
1241 case 0x17: // Configuration Readback and Extended Control
1242 case 0x18: // Signature Generator Control
1243 case 0x19: // Signal Generator Result
1244 case 0x1a: // Signal Generator Result
1245 case 0x1b: // VCLK 0 Denominator & Post
1246 case 0x1c: // VCLK 1 Denominator & Post
1247 case 0x1d: // VCLK 2 Denominator & Post
1248 case 0x1e: // VCLK 3 Denominator & Post
1249 case 0x1f: // BIOS Write Enable and MCLK select
1250#ifdef DEBUG_CIRRUS
1251 printf("cirrus: handled inport sr_index %02x\n", s->vga.sr_index);
1252#endif
1253 return s->vga.sr[s->vga.sr_index];
1254 default:
1255#ifdef DEBUG_CIRRUS
1256 printf("cirrus: inport sr_index %02x\n", s->vga.sr_index);
1257#endif
1258 return 0xff;
1259 break;
1260 }
1261}
1262
1263static void cirrus_vga_write_sr(CirrusVGAState * s, uint32_t val)
1264{
1265 switch (s->vga.sr_index) {
1266 case 0x00: // Standard VGA
1267 case 0x01: // Standard VGA
1268 case 0x02: // Standard VGA
1269 case 0x03: // Standard VGA
1270 case 0x04: // Standard VGA
1271 s->vga.sr[s->vga.sr_index] = val & sr_mask[s->vga.sr_index];
1272 if (s->vga.sr_index == 1)
1273 s->vga.update_retrace_info(&s->vga);
1274 break;
1275 case 0x06: // Unlock Cirrus extensions
1276 val &= 0x17;
1277 if (val == 0x12) {
1278 s->vga.sr[s->vga.sr_index] = 0x12;
1279 } else {
1280 s->vga.sr[s->vga.sr_index] = 0x0f;
1281 }
1282 break;
1283 case 0x10:
1284 case 0x30:
1285 case 0x50:
1286 case 0x70: // Graphics Cursor X
1287 case 0x90:
1288 case 0xb0:
1289 case 0xd0:
1290 case 0xf0: // Graphics Cursor X
1291 s->vga.sr[0x10] = val;
1292 s->hw_cursor_x = (val << 3) | (s->vga.sr_index >> 5);
1293 break;
1294 case 0x11:
1295 case 0x31:
1296 case 0x51:
1297 case 0x71: // Graphics Cursor Y
1298 case 0x91:
1299 case 0xb1:
1300 case 0xd1:
1301 case 0xf1: // Graphics Cursor Y
1302 s->vga.sr[0x11] = val;
1303 s->hw_cursor_y = (val << 3) | (s->vga.sr_index >> 5);
1304 break;
1305 case 0x07: // Extended Sequencer Mode
1306 cirrus_update_memory_access(s);
1307 case 0x08: // EEPROM Control
1308 case 0x09: // Scratch Register 0
1309 case 0x0a: // Scratch Register 1
1310 case 0x0b: // VCLK 0
1311 case 0x0c: // VCLK 1
1312 case 0x0d: // VCLK 2
1313 case 0x0e: // VCLK 3
1314 case 0x0f: // DRAM Control
1315 case 0x12: // Graphics Cursor Attribute
1316 case 0x13: // Graphics Cursor Pattern Address
1317 case 0x14: // Scratch Register 2
1318 case 0x15: // Scratch Register 3
1319 case 0x16: // Performance Tuning Register
1320 case 0x18: // Signature Generator Control
1321 case 0x19: // Signature Generator Result
1322 case 0x1a: // Signature Generator Result
1323 case 0x1b: // VCLK 0 Denominator & Post
1324 case 0x1c: // VCLK 1 Denominator & Post
1325 case 0x1d: // VCLK 2 Denominator & Post
1326 case 0x1e: // VCLK 3 Denominator & Post
1327 case 0x1f: // BIOS Write Enable and MCLK select
1328 s->vga.sr[s->vga.sr_index] = val;
1329#ifdef DEBUG_CIRRUS
1330 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1331 s->vga.sr_index, val);
1332#endif
1333 break;
1334 case 0x17: // Configuration Readback and Extended Control
1335 s->vga.sr[s->vga.sr_index] = (s->vga.sr[s->vga.sr_index] & 0x38)
1336 | (val & 0xc7);
1337 cirrus_update_memory_access(s);
1338 break;
1339 default:
1340#ifdef DEBUG_CIRRUS
1341 printf("cirrus: outport sr_index %02x, sr_value %02x\n",
1342 s->vga.sr_index, val);
1343#endif
1344 break;
1345 }
1346}
1347
1348/***************************************
1349 *
1350 * I/O access at 0x3c6
1351 *
1352 ***************************************/
1353
1354static int cirrus_read_hidden_dac(CirrusVGAState * s)
1355{
1356 if (++s->cirrus_hidden_dac_lockindex == 5) {
1357 s->cirrus_hidden_dac_lockindex = 0;
1358 return s->cirrus_hidden_dac_data;
1359 }
1360 return 0xff;
1361}
1362
1363static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1364{
1365 if (s->cirrus_hidden_dac_lockindex == 4) {
1366 s->cirrus_hidden_dac_data = reg_value;
1367#if defined(DEBUG_CIRRUS)
1368 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1369#endif
1370 }
1371 s->cirrus_hidden_dac_lockindex = 0;
1372}
1373
1374/***************************************
1375 *
1376 * I/O access at 0x3c9
1377 *
1378 ***************************************/
1379
1380static int cirrus_vga_read_palette(CirrusVGAState * s)
1381{
1382 int val;
1383
1384 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1385 val = s->cirrus_hidden_palette[(s->vga.dac_read_index & 0x0f) * 3 +
1386 s->vga.dac_sub_index];
1387 } else {
1388 val = s->vga.palette[s->vga.dac_read_index * 3 + s->vga.dac_sub_index];
1389 }
1390 if (++s->vga.dac_sub_index == 3) {
1391 s->vga.dac_sub_index = 0;
1392 s->vga.dac_read_index++;
1393 }
1394 return val;
1395}
1396
1397static void cirrus_vga_write_palette(CirrusVGAState * s, int reg_value)
1398{
1399 s->vga.dac_cache[s->vga.dac_sub_index] = reg_value;
1400 if (++s->vga.dac_sub_index == 3) {
1401 if ((s->vga.sr[0x12] & CIRRUS_CURSOR_HIDDENPEL)) {
1402 memcpy(&s->cirrus_hidden_palette[(s->vga.dac_write_index & 0x0f) * 3],
1403 s->vga.dac_cache, 3);
1404 } else {
1405 memcpy(&s->vga.palette[s->vga.dac_write_index * 3], s->vga.dac_cache, 3);
1406 }
1407 /* XXX update cursor */
1408 s->vga.dac_sub_index = 0;
1409 s->vga.dac_write_index++;
1410 }
1411}
1412
1413/***************************************
1414 *
1415 * I/O access between 0x3ce-0x3cf
1416 *
1417 ***************************************/
1418
1419static int cirrus_vga_read_gr(CirrusVGAState * s, unsigned reg_index)
1420{
1421 switch (reg_index) {
1422 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1423 return s->cirrus_shadow_gr0;
1424 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1425 return s->cirrus_shadow_gr1;
1426 case 0x02: // Standard VGA
1427 case 0x03: // Standard VGA
1428 case 0x04: // Standard VGA
1429 case 0x06: // Standard VGA
1430 case 0x07: // Standard VGA
1431 case 0x08: // Standard VGA
1432 return s->vga.gr[s->vga.gr_index];
1433 case 0x05: // Standard VGA, Cirrus extended mode
1434 default:
1435 break;
1436 }
1437
1438 if (reg_index < 0x3a) {
1439 return s->vga.gr[reg_index];
1440 } else {
1441#ifdef DEBUG_CIRRUS
1442 printf("cirrus: inport gr_index %02x\n", reg_index);
1443#endif
1444 return 0xff;
1445 }
1446}
1447
1448static void
1449cirrus_vga_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1450{
1451#if defined(DEBUG_BITBLT) && 0
1452 printf("gr%02x: %02x\n", reg_index, reg_value);
1453#endif
1454 switch (reg_index) {
1455 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1456 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1457 s->cirrus_shadow_gr0 = reg_value;
1458 break;
1459 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1460 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1461 s->cirrus_shadow_gr1 = reg_value;
1462 break;
1463 case 0x02: // Standard VGA
1464 case 0x03: // Standard VGA
1465 case 0x04: // Standard VGA
1466 case 0x06: // Standard VGA
1467 case 0x07: // Standard VGA
1468 case 0x08: // Standard VGA
1469 s->vga.gr[reg_index] = reg_value & gr_mask[reg_index];
1470 break;
1471 case 0x05: // Standard VGA, Cirrus extended mode
1472 s->vga.gr[reg_index] = reg_value & 0x7f;
1473 cirrus_update_memory_access(s);
1474 break;
1475 case 0x09: // bank offset #0
1476 case 0x0A: // bank offset #1
1477 s->vga.gr[reg_index] = reg_value;
1478 cirrus_update_bank_ptr(s, 0);
1479 cirrus_update_bank_ptr(s, 1);
1480 cirrus_update_memory_access(s);
1481 break;
1482 case 0x0B:
1483 s->vga.gr[reg_index] = reg_value;
1484 cirrus_update_bank_ptr(s, 0);
1485 cirrus_update_bank_ptr(s, 1);
1486 cirrus_update_memory_access(s);
1487 break;
1488 case 0x10: // BGCOLOR 0x0000ff00
1489 case 0x11: // FGCOLOR 0x0000ff00
1490 case 0x12: // BGCOLOR 0x00ff0000
1491 case 0x13: // FGCOLOR 0x00ff0000
1492 case 0x14: // BGCOLOR 0xff000000
1493 case 0x15: // FGCOLOR 0xff000000
1494 case 0x20: // BLT WIDTH 0x0000ff
1495 case 0x22: // BLT HEIGHT 0x0000ff
1496 case 0x24: // BLT DEST PITCH 0x0000ff
1497 case 0x26: // BLT SRC PITCH 0x0000ff
1498 case 0x28: // BLT DEST ADDR 0x0000ff
1499 case 0x29: // BLT DEST ADDR 0x00ff00
1500 case 0x2c: // BLT SRC ADDR 0x0000ff
1501 case 0x2d: // BLT SRC ADDR 0x00ff00
1502 case 0x2f: // BLT WRITEMASK
1503 case 0x30: // BLT MODE
1504 case 0x32: // RASTER OP
1505 case 0x33: // BLT MODEEXT
1506 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1507 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1508 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1509 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1510 s->vga.gr[reg_index] = reg_value;
1511 break;
1512 case 0x21: // BLT WIDTH 0x001f00
1513 case 0x23: // BLT HEIGHT 0x001f00
1514 case 0x25: // BLT DEST PITCH 0x001f00
1515 case 0x27: // BLT SRC PITCH 0x001f00
1516 s->vga.gr[reg_index] = reg_value & 0x1f;
1517 break;
1518 case 0x2a: // BLT DEST ADDR 0x3f0000
1519 s->vga.gr[reg_index] = reg_value & 0x3f;
1520 /* if auto start mode, starts bit blt now */
1521 if (s->vga.gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1522 cirrus_bitblt_start(s);
1523 }
1524 break;
1525 case 0x2e: // BLT SRC ADDR 0x3f0000
1526 s->vga.gr[reg_index] = reg_value & 0x3f;
1527 break;
1528 case 0x31: // BLT STATUS/START
1529 cirrus_write_bitblt(s, reg_value);
1530 break;
1531 default:
1532#ifdef DEBUG_CIRRUS
1533 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1534 reg_value);
1535#endif
1536 break;
1537 }
1538}
1539
1540/***************************************
1541 *
1542 * I/O access between 0x3d4-0x3d5
1543 *
1544 ***************************************/
1545
1546static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
1547{
1548 switch (reg_index) {
1549 case 0x00: // Standard VGA
1550 case 0x01: // Standard VGA
1551 case 0x02: // Standard VGA
1552 case 0x03: // Standard VGA
1553 case 0x04: // Standard VGA
1554 case 0x05: // Standard VGA
1555 case 0x06: // Standard VGA
1556 case 0x07: // Standard VGA
1557 case 0x08: // Standard VGA
1558 case 0x09: // Standard VGA
1559 case 0x0a: // Standard VGA
1560 case 0x0b: // Standard VGA
1561 case 0x0c: // Standard VGA
1562 case 0x0d: // Standard VGA
1563 case 0x0e: // Standard VGA
1564 case 0x0f: // Standard VGA
1565 case 0x10: // Standard VGA
1566 case 0x11: // Standard VGA
1567 case 0x12: // Standard VGA
1568 case 0x13: // Standard VGA
1569 case 0x14: // Standard VGA
1570 case 0x15: // Standard VGA
1571 case 0x16: // Standard VGA
1572 case 0x17: // Standard VGA
1573 case 0x18: // Standard VGA
1574 return s->vga.cr[s->vga.cr_index];
1575 case 0x24: // Attribute Controller Toggle Readback (R)
1576 return (s->vga.ar_flip_flop << 7);
1577 case 0x19: // Interlace End
1578 case 0x1a: // Miscellaneous Control
1579 case 0x1b: // Extended Display Control
1580 case 0x1c: // Sync Adjust and Genlock
1581 case 0x1d: // Overlay Extended Control
1582 case 0x22: // Graphics Data Latches Readback (R)
1583 case 0x25: // Part Status
1584 case 0x27: // Part ID (R)
1585 return s->vga.cr[s->vga.cr_index];
1586 case 0x26: // Attribute Controller Index Readback (R)
1587 return s->vga.ar_index & 0x3f;
1588 break;
1589 default:
1590#ifdef DEBUG_CIRRUS
1591 printf("cirrus: inport cr_index %02x\n", reg_index);
1592#endif
1593 return 0xff;
1594 }
1595}
1596
1597static void cirrus_vga_write_cr(CirrusVGAState * s, int reg_value)
1598{
1599 switch (s->vga.cr_index) {
1600 case 0x00: // Standard VGA
1601 case 0x01: // Standard VGA
1602 case 0x02: // Standard VGA
1603 case 0x03: // Standard VGA
1604 case 0x04: // Standard VGA
1605 case 0x05: // Standard VGA
1606 case 0x06: // Standard VGA
1607 case 0x07: // Standard VGA
1608 case 0x08: // Standard VGA
1609 case 0x09: // Standard VGA
1610 case 0x0a: // Standard VGA
1611 case 0x0b: // Standard VGA
1612 case 0x0c: // Standard VGA
1613 case 0x0d: // Standard VGA
1614 case 0x0e: // Standard VGA
1615 case 0x0f: // Standard VGA
1616 case 0x10: // Standard VGA
1617 case 0x11: // Standard VGA
1618 case 0x12: // Standard VGA
1619 case 0x13: // Standard VGA
1620 case 0x14: // Standard VGA
1621 case 0x15: // Standard VGA
1622 case 0x16: // Standard VGA
1623 case 0x17: // Standard VGA
1624 case 0x18: // Standard VGA
1625 /* handle CR0-7 protection */
1626 if ((s->vga.cr[0x11] & 0x80) && s->vga.cr_index <= 7) {
1627 /* can always write bit 4 of CR7 */
1628 if (s->vga.cr_index == 7)
1629 s->vga.cr[7] = (s->vga.cr[7] & ~0x10) | (reg_value & 0x10);
1630 return;
1631 }
1632 s->vga.cr[s->vga.cr_index] = reg_value;
1633 switch(s->vga.cr_index) {
1634 case 0x00:
1635 case 0x04:
1636 case 0x05:
1637 case 0x06:
1638 case 0x07:
1639 case 0x11:
1640 case 0x17:
1641 s->vga.update_retrace_info(&s->vga);
1642 break;
1643 }
1644 break;
1645 case 0x19: // Interlace End
1646 case 0x1a: // Miscellaneous Control
1647 case 0x1b: // Extended Display Control
1648 case 0x1c: // Sync Adjust and Genlock
1649 case 0x1d: // Overlay Extended Control
1650 s->vga.cr[s->vga.cr_index] = reg_value;
1651#ifdef DEBUG_CIRRUS
1652 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1653 s->vga.cr_index, reg_value);
1654#endif
1655 break;
1656 case 0x22: // Graphics Data Latches Readback (R)
1657 case 0x24: // Attribute Controller Toggle Readback (R)
1658 case 0x26: // Attribute Controller Index Readback (R)
1659 case 0x27: // Part ID (R)
1660 break;
1661 case 0x25: // Part Status
1662 default:
1663#ifdef DEBUG_CIRRUS
1664 printf("cirrus: outport cr_index %02x, cr_value %02x\n",
1665 s->vga.cr_index, reg_value);
1666#endif
1667 break;
1668 }
1669}
1670
1671/***************************************
1672 *
1673 * memory-mapped I/O (bitblt)
1674 *
1675 ***************************************/
1676
1677static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1678{
1679 int value = 0xff;
1680
1681 switch (address) {
1682 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1683 value = cirrus_vga_read_gr(s, 0x00);
1684 break;
1685 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1686 value = cirrus_vga_read_gr(s, 0x10);
1687 break;
1688 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1689 value = cirrus_vga_read_gr(s, 0x12);
1690 break;
1691 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1692 value = cirrus_vga_read_gr(s, 0x14);
1693 break;
1694 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1695 value = cirrus_vga_read_gr(s, 0x01);
1696 break;
1697 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1698 value = cirrus_vga_read_gr(s, 0x11);
1699 break;
1700 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1701 value = cirrus_vga_read_gr(s, 0x13);
1702 break;
1703 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1704 value = cirrus_vga_read_gr(s, 0x15);
1705 break;
1706 case (CIRRUS_MMIO_BLTWIDTH + 0):
1707 value = cirrus_vga_read_gr(s, 0x20);
1708 break;
1709 case (CIRRUS_MMIO_BLTWIDTH + 1):
1710 value = cirrus_vga_read_gr(s, 0x21);
1711 break;
1712 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1713 value = cirrus_vga_read_gr(s, 0x22);
1714 break;
1715 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1716 value = cirrus_vga_read_gr(s, 0x23);
1717 break;
1718 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1719 value = cirrus_vga_read_gr(s, 0x24);
1720 break;
1721 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1722 value = cirrus_vga_read_gr(s, 0x25);
1723 break;
1724 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1725 value = cirrus_vga_read_gr(s, 0x26);
1726 break;
1727 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1728 value = cirrus_vga_read_gr(s, 0x27);
1729 break;
1730 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1731 value = cirrus_vga_read_gr(s, 0x28);
1732 break;
1733 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1734 value = cirrus_vga_read_gr(s, 0x29);
1735 break;
1736 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1737 value = cirrus_vga_read_gr(s, 0x2a);
1738 break;
1739 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1740 value = cirrus_vga_read_gr(s, 0x2c);
1741 break;
1742 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1743 value = cirrus_vga_read_gr(s, 0x2d);
1744 break;
1745 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1746 value = cirrus_vga_read_gr(s, 0x2e);
1747 break;
1748 case CIRRUS_MMIO_BLTWRITEMASK:
1749 value = cirrus_vga_read_gr(s, 0x2f);
1750 break;
1751 case CIRRUS_MMIO_BLTMODE:
1752 value = cirrus_vga_read_gr(s, 0x30);
1753 break;
1754 case CIRRUS_MMIO_BLTROP:
1755 value = cirrus_vga_read_gr(s, 0x32);
1756 break;
1757 case CIRRUS_MMIO_BLTMODEEXT:
1758 value = cirrus_vga_read_gr(s, 0x33);
1759 break;
1760 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1761 value = cirrus_vga_read_gr(s, 0x34);
1762 break;
1763 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1764 value = cirrus_vga_read_gr(s, 0x35);
1765 break;
1766 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1767 value = cirrus_vga_read_gr(s, 0x38);
1768 break;
1769 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1770 value = cirrus_vga_read_gr(s, 0x39);
1771 break;
1772 case CIRRUS_MMIO_BLTSTATUS:
1773 value = cirrus_vga_read_gr(s, 0x31);
1774 break;
1775 default:
1776#ifdef DEBUG_CIRRUS
1777 printf("cirrus: mmio read - address 0x%04x\n", address);
1778#endif
1779 break;
1780 }
1781
1782 return (uint8_t) value;
1783}
1784
1785static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1786 uint8_t value)
1787{
1788 switch (address) {
1789 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1790 cirrus_vga_write_gr(s, 0x00, value);
1791 break;
1792 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1793 cirrus_vga_write_gr(s, 0x10, value);
1794 break;
1795 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1796 cirrus_vga_write_gr(s, 0x12, value);
1797 break;
1798 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1799 cirrus_vga_write_gr(s, 0x14, value);
1800 break;
1801 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1802 cirrus_vga_write_gr(s, 0x01, value);
1803 break;
1804 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1805 cirrus_vga_write_gr(s, 0x11, value);
1806 break;
1807 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1808 cirrus_vga_write_gr(s, 0x13, value);
1809 break;
1810 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1811 cirrus_vga_write_gr(s, 0x15, value);
1812 break;
1813 case (CIRRUS_MMIO_BLTWIDTH + 0):
1814 cirrus_vga_write_gr(s, 0x20, value);
1815 break;
1816 case (CIRRUS_MMIO_BLTWIDTH + 1):
1817 cirrus_vga_write_gr(s, 0x21, value);
1818 break;
1819 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1820 cirrus_vga_write_gr(s, 0x22, value);
1821 break;
1822 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1823 cirrus_vga_write_gr(s, 0x23, value);
1824 break;
1825 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1826 cirrus_vga_write_gr(s, 0x24, value);
1827 break;
1828 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1829 cirrus_vga_write_gr(s, 0x25, value);
1830 break;
1831 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1832 cirrus_vga_write_gr(s, 0x26, value);
1833 break;
1834 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1835 cirrus_vga_write_gr(s, 0x27, value);
1836 break;
1837 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1838 cirrus_vga_write_gr(s, 0x28, value);
1839 break;
1840 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1841 cirrus_vga_write_gr(s, 0x29, value);
1842 break;
1843 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1844 cirrus_vga_write_gr(s, 0x2a, value);
1845 break;
1846 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1847 /* ignored */
1848 break;
1849 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1850 cirrus_vga_write_gr(s, 0x2c, value);
1851 break;
1852 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1853 cirrus_vga_write_gr(s, 0x2d, value);
1854 break;
1855 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1856 cirrus_vga_write_gr(s, 0x2e, value);
1857 break;
1858 case CIRRUS_MMIO_BLTWRITEMASK:
1859 cirrus_vga_write_gr(s, 0x2f, value);
1860 break;
1861 case CIRRUS_MMIO_BLTMODE:
1862 cirrus_vga_write_gr(s, 0x30, value);
1863 break;
1864 case CIRRUS_MMIO_BLTROP:
1865 cirrus_vga_write_gr(s, 0x32, value);
1866 break;
1867 case CIRRUS_MMIO_BLTMODEEXT:
1868 cirrus_vga_write_gr(s, 0x33, value);
1869 break;
1870 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1871 cirrus_vga_write_gr(s, 0x34, value);
1872 break;
1873 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1874 cirrus_vga_write_gr(s, 0x35, value);
1875 break;
1876 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1877 cirrus_vga_write_gr(s, 0x38, value);
1878 break;
1879 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1880 cirrus_vga_write_gr(s, 0x39, value);
1881 break;
1882 case CIRRUS_MMIO_BLTSTATUS:
1883 cirrus_vga_write_gr(s, 0x31, value);
1884 break;
1885 default:
1886#ifdef DEBUG_CIRRUS
1887 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1888 address, value);
1889#endif
1890 break;
1891 }
1892}
1893
1894/***************************************
1895 *
1896 * write mode 4/5
1897 *
1898 * assume TARGET_PAGE_SIZE >= 16
1899 *
1900 ***************************************/
1901
1902static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1903 unsigned mode,
1904 unsigned offset,
1905 uint32_t mem_value)
1906{
1907 int x;
1908 unsigned val = mem_value;
1909 uint8_t *dst;
1910
1911 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1912 for (x = 0; x < 8; x++) {
1913 if (val & 0x80) {
1914 *dst = s->cirrus_shadow_gr1;
1915 } else if (mode == 5) {
1916 *dst = s->cirrus_shadow_gr0;
1917 }
1918 val <<= 1;
1919 dst++;
1920 }
1921 memory_region_set_dirty(&s->vga.vram, offset);
1922 memory_region_set_dirty(&s->vga.vram, offset + 7);
1923}
1924
1925static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1926 unsigned mode,
1927 unsigned offset,
1928 uint32_t mem_value)
1929{
1930 int x;
1931 unsigned val = mem_value;
1932 uint8_t *dst;
1933
1934 dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask);
1935 for (x = 0; x < 8; x++) {
1936 if (val & 0x80) {
1937 *dst = s->cirrus_shadow_gr1;
1938 *(dst + 1) = s->vga.gr[0x11];
1939 } else if (mode == 5) {
1940 *dst = s->cirrus_shadow_gr0;
1941 *(dst + 1) = s->vga.gr[0x10];
1942 }
1943 val <<= 1;
1944 dst += 2;
1945 }
1946 memory_region_set_dirty(&s->vga.vram, offset);
1947 memory_region_set_dirty(&s->vga.vram, offset + 15);
1948}
1949
1950/***************************************
1951 *
1952 * memory access between 0xa0000-0xbffff
1953 *
1954 ***************************************/
1955
1956static uint64_t cirrus_vga_mem_read(void *opaque,
1957 target_phys_addr_t addr,
1958 uint32_t size)
1959{
1960 CirrusVGAState *s = opaque;
1961 unsigned bank_index;
1962 unsigned bank_offset;
1963 uint32_t val;
1964
1965 if ((s->vga.sr[0x07] & 0x01) == 0) {
1966 return vga_mem_readb(&s->vga, addr);
1967 }
1968
1969 if (addr < 0x10000) {
1970 /* XXX handle bitblt */
1971 /* video memory */
1972 bank_index = addr >> 15;
1973 bank_offset = addr & 0x7fff;
1974 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1975 bank_offset += s->cirrus_bank_base[bank_index];
1976 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
1977 bank_offset <<= 4;
1978 } else if (s->vga.gr[0x0B] & 0x02) {
1979 bank_offset <<= 3;
1980 }
1981 bank_offset &= s->cirrus_addr_mask;
1982 val = *(s->vga.vram_ptr + bank_offset);
1983 } else
1984 val = 0xff;
1985 } else if (addr >= 0x18000 && addr < 0x18100) {
1986 /* memory-mapped I/O */
1987 val = 0xff;
1988 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
1989 val = cirrus_mmio_blt_read(s, addr & 0xff);
1990 }
1991 } else {
1992 val = 0xff;
1993#ifdef DEBUG_CIRRUS
1994 printf("cirrus: mem_readb " TARGET_FMT_plx "\n", addr);
1995#endif
1996 }
1997 return val;
1998}
1999
2000static void cirrus_vga_mem_write(void *opaque,
2001 target_phys_addr_t addr,
2002 uint64_t mem_value,
2003 uint32_t size)
2004{
2005 CirrusVGAState *s = opaque;
2006 unsigned bank_index;
2007 unsigned bank_offset;
2008 unsigned mode;
2009
2010 if ((s->vga.sr[0x07] & 0x01) == 0) {
2011 vga_mem_writeb(&s->vga, addr, mem_value);
2012 return;
2013 }
2014
2015 if (addr < 0x10000) {
2016 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2017 /* bitblt */
2018 *s->cirrus_srcptr++ = (uint8_t) mem_value;
2019 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2020 cirrus_bitblt_cputovideo_next(s);
2021 }
2022 } else {
2023 /* video memory */
2024 bank_index = addr >> 15;
2025 bank_offset = addr & 0x7fff;
2026 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
2027 bank_offset += s->cirrus_bank_base[bank_index];
2028 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2029 bank_offset <<= 4;
2030 } else if (s->vga.gr[0x0B] & 0x02) {
2031 bank_offset <<= 3;
2032 }
2033 bank_offset &= s->cirrus_addr_mask;
2034 mode = s->vga.gr[0x05] & 0x7;
2035 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2036 *(s->vga.vram_ptr + bank_offset) = mem_value;
2037 memory_region_set_dirty(&s->vga.vram, bank_offset);
2038 } else {
2039 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2040 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
2041 bank_offset,
2042 mem_value);
2043 } else {
2044 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
2045 bank_offset,
2046 mem_value);
2047 }
2048 }
2049 }
2050 }
2051 } else if (addr >= 0x18000 && addr < 0x18100) {
2052 /* memory-mapped I/O */
2053 if ((s->vga.sr[0x17] & 0x44) == 0x04) {
2054 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
2055 }
2056 } else {
2057#ifdef DEBUG_CIRRUS
2058 printf("cirrus: mem_writeb " TARGET_FMT_plx " value %02x\n", addr,
2059 mem_value);
2060#endif
2061 }
2062}
2063
2064static const MemoryRegionOps cirrus_vga_mem_ops = {
2065 .read = cirrus_vga_mem_read,
2066 .write = cirrus_vga_mem_write,
2067 .endianness = DEVICE_LITTLE_ENDIAN,
2068 .impl = {
2069 .min_access_size = 1,
2070 .max_access_size = 1,
2071 },
2072};
2073
2074/***************************************
2075 *
2076 * hardware cursor
2077 *
2078 ***************************************/
2079
2080static inline void invalidate_cursor1(CirrusVGAState *s)
2081{
2082 if (s->last_hw_cursor_size) {
2083 vga_invalidate_scanlines(&s->vga,
2084 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2085 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2086 }
2087}
2088
2089static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2090{
2091 const uint8_t *src;
2092 uint32_t content;
2093 int y, y_min, y_max;
2094
2095 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2096 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2097 src += (s->vga.sr[0x13] & 0x3c) * 256;
2098 y_min = 64;
2099 y_max = -1;
2100 for(y = 0; y < 64; y++) {
2101 content = ((uint32_t *)src)[0] |
2102 ((uint32_t *)src)[1] |
2103 ((uint32_t *)src)[2] |
2104 ((uint32_t *)src)[3];
2105 if (content) {
2106 if (y < y_min)
2107 y_min = y;
2108 if (y > y_max)
2109 y_max = y;
2110 }
2111 src += 16;
2112 }
2113 } else {
2114 src += (s->vga.sr[0x13] & 0x3f) * 256;
2115 y_min = 32;
2116 y_max = -1;
2117 for(y = 0; y < 32; y++) {
2118 content = ((uint32_t *)src)[0] |
2119 ((uint32_t *)(src + 128))[0];
2120 if (content) {
2121 if (y < y_min)
2122 y_min = y;
2123 if (y > y_max)
2124 y_max = y;
2125 }
2126 src += 4;
2127 }
2128 }
2129 if (y_min > y_max) {
2130 s->last_hw_cursor_y_start = 0;
2131 s->last_hw_cursor_y_end = 0;
2132 } else {
2133 s->last_hw_cursor_y_start = y_min;
2134 s->last_hw_cursor_y_end = y_max + 1;
2135 }
2136}
2137
2138/* NOTE: we do not currently handle the cursor bitmap change, so we
2139 update the cursor only if it moves. */
2140static void cirrus_cursor_invalidate(VGACommonState *s1)
2141{
2142 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2143 int size;
2144
2145 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW)) {
2146 size = 0;
2147 } else {
2148 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE)
2149 size = 64;
2150 else
2151 size = 32;
2152 }
2153 /* invalidate last cursor and new cursor if any change */
2154 if (s->last_hw_cursor_size != size ||
2155 s->last_hw_cursor_x != s->hw_cursor_x ||
2156 s->last_hw_cursor_y != s->hw_cursor_y) {
2157
2158 invalidate_cursor1(s);
2159
2160 s->last_hw_cursor_size = size;
2161 s->last_hw_cursor_x = s->hw_cursor_x;
2162 s->last_hw_cursor_y = s->hw_cursor_y;
2163 /* compute the real cursor min and max y */
2164 cirrus_cursor_compute_yrange(s);
2165 invalidate_cursor1(s);
2166 }
2167}
2168
2169static void cirrus_cursor_draw_line(VGACommonState *s1, uint8_t *d1, int scr_y)
2170{
2171 CirrusVGAState *s = container_of(s1, CirrusVGAState, vga);
2172 int w, h, bpp, x1, x2, poffset;
2173 unsigned int color0, color1;
2174 const uint8_t *palette, *src;
2175 uint32_t content;
2176
2177 if (!(s->vga.sr[0x12] & CIRRUS_CURSOR_SHOW))
2178 return;
2179 /* fast test to see if the cursor intersects with the scan line */
2180 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2181 h = 64;
2182 } else {
2183 h = 32;
2184 }
2185 if (scr_y < s->hw_cursor_y ||
2186 scr_y >= (s->hw_cursor_y + h))
2187 return;
2188
2189 src = s->vga.vram_ptr + s->real_vram_size - 16 * 1024;
2190 if (s->vga.sr[0x12] & CIRRUS_CURSOR_LARGE) {
2191 src += (s->vga.sr[0x13] & 0x3c) * 256;
2192 src += (scr_y - s->hw_cursor_y) * 16;
2193 poffset = 8;
2194 content = ((uint32_t *)src)[0] |
2195 ((uint32_t *)src)[1] |
2196 ((uint32_t *)src)[2] |
2197 ((uint32_t *)src)[3];
2198 } else {
2199 src += (s->vga.sr[0x13] & 0x3f) * 256;
2200 src += (scr_y - s->hw_cursor_y) * 4;
2201 poffset = 128;
2202 content = ((uint32_t *)src)[0] |
2203 ((uint32_t *)(src + 128))[0];
2204 }
2205 /* if nothing to draw, no need to continue */
2206 if (!content)
2207 return;
2208 w = h;
2209
2210 x1 = s->hw_cursor_x;
2211 if (x1 >= s->vga.last_scr_width)
2212 return;
2213 x2 = s->hw_cursor_x + w;
2214 if (x2 > s->vga.last_scr_width)
2215 x2 = s->vga.last_scr_width;
2216 w = x2 - x1;
2217 palette = s->cirrus_hidden_palette;
2218 color0 = s->vga.rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2219 c6_to_8(palette[0x0 * 3 + 1]),
2220 c6_to_8(palette[0x0 * 3 + 2]));
2221 color1 = s->vga.rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2222 c6_to_8(palette[0xf * 3 + 1]),
2223 c6_to_8(palette[0xf * 3 + 2]));
2224 bpp = ((ds_get_bits_per_pixel(s->vga.ds) + 7) >> 3);
2225 d1 += x1 * bpp;
2226 switch(ds_get_bits_per_pixel(s->vga.ds)) {
2227 default:
2228 break;
2229 case 8:
2230 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2231 break;
2232 case 15:
2233 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2234 break;
2235 case 16:
2236 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2237 break;
2238 case 32:
2239 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2240 break;
2241 }
2242}
2243
2244/***************************************
2245 *
2246 * LFB memory access
2247 *
2248 ***************************************/
2249
2250static uint64_t cirrus_linear_read(void *opaque, target_phys_addr_t addr,
2251 unsigned size)
2252{
2253 CirrusVGAState *s = opaque;
2254 uint32_t ret;
2255
2256 addr &= s->cirrus_addr_mask;
2257
2258 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2259 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2260 /* memory-mapped I/O */
2261 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2262 } else if (0) {
2263 /* XXX handle bitblt */
2264 ret = 0xff;
2265 } else {
2266 /* video memory */
2267 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2268 addr <<= 4;
2269 } else if (s->vga.gr[0x0B] & 0x02) {
2270 addr <<= 3;
2271 }
2272 addr &= s->cirrus_addr_mask;
2273 ret = *(s->vga.vram_ptr + addr);
2274 }
2275
2276 return ret;
2277}
2278
2279static void cirrus_linear_write(void *opaque, target_phys_addr_t addr,
2280 uint64_t val, unsigned size)
2281{
2282 CirrusVGAState *s = opaque;
2283 unsigned mode;
2284
2285 addr &= s->cirrus_addr_mask;
2286
2287 if (((s->vga.sr[0x17] & 0x44) == 0x44) &&
2288 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
2289 /* memory-mapped I/O */
2290 cirrus_mmio_blt_write(s, addr & 0xff, val);
2291 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2292 /* bitblt */
2293 *s->cirrus_srcptr++ = (uint8_t) val;
2294 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2295 cirrus_bitblt_cputovideo_next(s);
2296 }
2297 } else {
2298 /* video memory */
2299 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2300 addr <<= 4;
2301 } else if (s->vga.gr[0x0B] & 0x02) {
2302 addr <<= 3;
2303 }
2304 addr &= s->cirrus_addr_mask;
2305
2306 mode = s->vga.gr[0x05] & 0x7;
2307 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2308 *(s->vga.vram_ptr + addr) = (uint8_t) val;
2309 memory_region_set_dirty(&s->vga.vram, addr);
2310 } else {
2311 if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
2312 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2313 } else {
2314 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2315 }
2316 }
2317 }
2318}
2319
2320/***************************************
2321 *
2322 * system to screen memory access
2323 *
2324 ***************************************/
2325
2326
2327static uint64_t cirrus_linear_bitblt_read(void *opaque,
2328 target_phys_addr_t addr,
2329 unsigned size)
2330{
2331 CirrusVGAState *s = opaque;
2332 uint32_t ret;
2333
2334 /* XXX handle bitblt */
2335 (void)s;
2336 ret = 0xff;
2337 return ret;
2338}
2339
2340static void cirrus_linear_bitblt_write(void *opaque,
2341 target_phys_addr_t addr,
2342 uint64_t val,
2343 unsigned size)
2344{
2345 CirrusVGAState *s = opaque;
2346
2347 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2348 /* bitblt */
2349 *s->cirrus_srcptr++ = (uint8_t) val;
2350 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2351 cirrus_bitblt_cputovideo_next(s);
2352 }
2353 }
2354}
2355
2356static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
2357 .read = cirrus_linear_bitblt_read,
2358 .write = cirrus_linear_bitblt_write,
2359 .endianness = DEVICE_LITTLE_ENDIAN,
2360 .impl = {
2361 .min_access_size = 1,
2362 .max_access_size = 1,
2363 },
2364};
2365
2366static void unmap_bank(CirrusVGAState *s, unsigned bank)
2367{
2368 if (s->cirrus_bank[bank]) {
2369 memory_region_del_subregion(&s->low_mem_container,
2370 s->cirrus_bank[bank]);
2371 memory_region_destroy(s->cirrus_bank[bank]);
2372 g_free(s->cirrus_bank[bank]);
2373 s->cirrus_bank[bank] = NULL;
2374 }
2375}
2376
2377static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
2378{
2379 MemoryRegion *mr;
2380 static const char *names[] = { "vga.bank0", "vga.bank1" };
2381
2382 if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
2383 && !((s->vga.sr[0x07] & 0x01) == 0)
2384 && !((s->vga.gr[0x0B] & 0x14) == 0x14)
2385 && !(s->vga.gr[0x0B] & 0x02)) {
2386
2387 mr = g_malloc(sizeof(*mr));
2388 memory_region_init_alias(mr, names[bank], &s->vga.vram,
2389 s->cirrus_bank_base[bank], 0x8000);
2390 memory_region_add_subregion_overlap(
2391 &s->low_mem_container,
2392 0x8000 * bank,
2393 mr,
2394 1);
2395 unmap_bank(s, bank);
2396 s->cirrus_bank[bank] = mr;
2397 } else {
2398 unmap_bank(s, bank);
2399 }
2400}
2401
2402static void map_linear_vram(CirrusVGAState *s)
2403{
2404 if (s->bustype == CIRRUS_BUSTYPE_PCI && !s->linear_vram) {
2405 s->linear_vram = true;
2406 memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
2407 }
2408 map_linear_vram_bank(s, 0);
2409 map_linear_vram_bank(s, 1);
2410}
2411
2412static void unmap_linear_vram(CirrusVGAState *s)
2413{
2414 if (s->bustype == CIRRUS_BUSTYPE_PCI && s->linear_vram) {
2415 s->linear_vram = false;
2416 memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
2417 }
2418 unmap_bank(s, 0);
2419 unmap_bank(s, 1);
2420}
2421
2422/* Compute the memory access functions */
2423static void cirrus_update_memory_access(CirrusVGAState *s)
2424{
2425 unsigned mode;
2426
2427 memory_region_transaction_begin();
2428 if ((s->vga.sr[0x17] & 0x44) == 0x44) {
2429 goto generic_io;
2430 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2431 goto generic_io;
2432 } else {
2433 if ((s->vga.gr[0x0B] & 0x14) == 0x14) {
2434 goto generic_io;
2435 } else if (s->vga.gr[0x0B] & 0x02) {
2436 goto generic_io;
2437 }
2438
2439 mode = s->vga.gr[0x05] & 0x7;
2440 if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
2441 map_linear_vram(s);
2442 } else {
2443 generic_io:
2444 unmap_linear_vram(s);
2445 }
2446 }
2447 memory_region_transaction_commit();
2448}
2449
2450
2451/* I/O ports */
2452
2453static uint32_t cirrus_vga_ioport_read(void *opaque, uint32_t addr)
2454{
2455 CirrusVGAState *c = opaque;
2456 VGACommonState *s = &c->vga;
2457 int val, index;
2458
2459 if (vga_ioport_invalid(s, addr)) {
2460 val = 0xff;
2461 } else {
2462 switch (addr) {
2463 case 0x3c0:
2464 if (s->ar_flip_flop == 0) {
2465 val = s->ar_index;
2466 } else {
2467 val = 0;
2468 }
2469 break;
2470 case 0x3c1:
2471 index = s->ar_index & 0x1f;
2472 if (index < 21)
2473 val = s->ar[index];
2474 else
2475 val = 0;
2476 break;
2477 case 0x3c2:
2478 val = s->st00;
2479 break;
2480 case 0x3c4:
2481 val = s->sr_index;
2482 break;
2483 case 0x3c5:
2484 val = cirrus_vga_read_sr(c);
2485 break;
2486#ifdef DEBUG_VGA_REG
2487 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2488#endif
2489 break;
2490 case 0x3c6:
2491 val = cirrus_read_hidden_dac(c);
2492 break;
2493 case 0x3c7:
2494 val = s->dac_state;
2495 break;
2496 case 0x3c8:
2497 val = s->dac_write_index;
2498 c->cirrus_hidden_dac_lockindex = 0;
2499 break;
2500 case 0x3c9:
2501 val = cirrus_vga_read_palette(c);
2502 break;
2503 case 0x3ca:
2504 val = s->fcr;
2505 break;
2506 case 0x3cc:
2507 val = s->msr;
2508 break;
2509 case 0x3ce:
2510 val = s->gr_index;
2511 break;
2512 case 0x3cf:
2513 val = cirrus_vga_read_gr(c, s->gr_index);
2514#ifdef DEBUG_VGA_REG
2515 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2516#endif
2517 break;
2518 case 0x3b4:
2519 case 0x3d4:
2520 val = s->cr_index;
2521 break;
2522 case 0x3b5:
2523 case 0x3d5:
2524 val = cirrus_vga_read_cr(c, s->cr_index);
2525#ifdef DEBUG_VGA_REG
2526 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
2527#endif
2528 break;
2529 case 0x3ba:
2530 case 0x3da:
2531 /* just toggle to fool polling */
2532 val = s->st01 = s->retrace(s);
2533 s->ar_flip_flop = 0;
2534 break;
2535 default:
2536 val = 0x00;
2537 break;
2538 }
2539 }
2540#if defined(DEBUG_VGA)
2541 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2542#endif
2543 return val;
2544}
2545
2546static void cirrus_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2547{
2548 CirrusVGAState *c = opaque;
2549 VGACommonState *s = &c->vga;
2550 int index;
2551
2552 /* check port range access depending on color/monochrome mode */
2553 if (vga_ioport_invalid(s, addr)) {
2554 return;
2555 }
2556#ifdef DEBUG_VGA
2557 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2558#endif
2559
2560 switch (addr) {
2561 case 0x3c0:
2562 if (s->ar_flip_flop == 0) {
2563 val &= 0x3f;
2564 s->ar_index = val;
2565 } else {
2566 index = s->ar_index & 0x1f;
2567 switch (index) {
2568 case 0x00 ... 0x0f:
2569 s->ar[index] = val & 0x3f;
2570 break;
2571 case 0x10:
2572 s->ar[index] = val & ~0x10;
2573 break;
2574 case 0x11:
2575 s->ar[index] = val;
2576 break;
2577 case 0x12:
2578 s->ar[index] = val & ~0xc0;
2579 break;
2580 case 0x13:
2581 s->ar[index] = val & ~0xf0;
2582 break;
2583 case 0x14:
2584 s->ar[index] = val & ~0xf0;
2585 break;
2586 default:
2587 break;
2588 }
2589 }
2590 s->ar_flip_flop ^= 1;
2591 break;
2592 case 0x3c2:
2593 s->msr = val & ~0x10;
2594 s->update_retrace_info(s);
2595 break;
2596 case 0x3c4:
2597 s->sr_index = val;
2598 break;
2599 case 0x3c5:
2600#ifdef DEBUG_VGA_REG
2601 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2602#endif
2603 cirrus_vga_write_sr(c, val);
2604 break;
2605 break;
2606 case 0x3c6:
2607 cirrus_write_hidden_dac(c, val);
2608 break;
2609 case 0x3c7:
2610 s->dac_read_index = val;
2611 s->dac_sub_index = 0;
2612 s->dac_state = 3;
2613 break;
2614 case 0x3c8:
2615 s->dac_write_index = val;
2616 s->dac_sub_index = 0;
2617 s->dac_state = 0;
2618 break;
2619 case 0x3c9:
2620 cirrus_vga_write_palette(c, val);
2621 break;
2622 case 0x3ce:
2623 s->gr_index = val;
2624 break;
2625 case 0x3cf:
2626#ifdef DEBUG_VGA_REG
2627 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2628#endif
2629 cirrus_vga_write_gr(c, s->gr_index, val);
2630 break;
2631 case 0x3b4:
2632 case 0x3d4:
2633 s->cr_index = val;
2634 break;
2635 case 0x3b5:
2636 case 0x3d5:
2637#ifdef DEBUG_VGA_REG
2638 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2639#endif
2640 cirrus_vga_write_cr(c, val);
2641 break;
2642 case 0x3ba:
2643 case 0x3da:
2644 s->fcr = val & 0x10;
2645 break;
2646 }
2647}
2648
2649/***************************************
2650 *
2651 * memory-mapped I/O access
2652 *
2653 ***************************************/
2654
2655static uint64_t cirrus_mmio_read(void *opaque, target_phys_addr_t addr,
2656 unsigned size)
2657{
2658 CirrusVGAState *s = opaque;
2659
2660 if (addr >= 0x100) {
2661 return cirrus_mmio_blt_read(s, addr - 0x100);
2662 } else {
2663 return cirrus_vga_ioport_read(s, addr + 0x3c0);
2664 }
2665}
2666
2667static void cirrus_mmio_write(void *opaque, target_phys_addr_t addr,
2668 uint64_t val, unsigned size)
2669{
2670 CirrusVGAState *s = opaque;
2671
2672 if (addr >= 0x100) {
2673 cirrus_mmio_blt_write(s, addr - 0x100, val);
2674 } else {
2675 cirrus_vga_ioport_write(s, addr + 0x3c0, val);
2676 }
2677}
2678
2679static const MemoryRegionOps cirrus_mmio_io_ops = {
2680 .read = cirrus_mmio_read,
2681 .write = cirrus_mmio_write,
2682 .endianness = DEVICE_LITTLE_ENDIAN,
2683 .impl = {
2684 .min_access_size = 1,
2685 .max_access_size = 1,
2686 },
2687};
2688
2689/* load/save state */
2690
2691static int cirrus_post_load(void *opaque, int version_id)
2692{
2693 CirrusVGAState *s = opaque;
2694
2695 s->vga.gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2696 s->vga.gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2697
2698 cirrus_update_memory_access(s);
2699 /* force refresh */
2700 s->vga.graphic_mode = -1;
2701 cirrus_update_bank_ptr(s, 0);
2702 cirrus_update_bank_ptr(s, 1);
2703 return 0;
2704}
2705
2706static const VMStateDescription vmstate_cirrus_vga = {
2707 .name = "cirrus_vga",
2708 .version_id = 2,
2709 .minimum_version_id = 1,
2710 .minimum_version_id_old = 1,
2711 .post_load = cirrus_post_load,
2712 .fields = (VMStateField []) {
2713 VMSTATE_UINT32(vga.latch, CirrusVGAState),
2714 VMSTATE_UINT8(vga.sr_index, CirrusVGAState),
2715 VMSTATE_BUFFER(vga.sr, CirrusVGAState),
2716 VMSTATE_UINT8(vga.gr_index, CirrusVGAState),
2717 VMSTATE_UINT8(cirrus_shadow_gr0, CirrusVGAState),
2718 VMSTATE_UINT8(cirrus_shadow_gr1, CirrusVGAState),
2719 VMSTATE_BUFFER_START_MIDDLE(vga.gr, CirrusVGAState, 2),
2720 VMSTATE_UINT8(vga.ar_index, CirrusVGAState),
2721 VMSTATE_BUFFER(vga.ar, CirrusVGAState),
2722 VMSTATE_INT32(vga.ar_flip_flop, CirrusVGAState),
2723 VMSTATE_UINT8(vga.cr_index, CirrusVGAState),
2724 VMSTATE_BUFFER(vga.cr, CirrusVGAState),
2725 VMSTATE_UINT8(vga.msr, CirrusVGAState),
2726 VMSTATE_UINT8(vga.fcr, CirrusVGAState),
2727 VMSTATE_UINT8(vga.st00, CirrusVGAState),
2728 VMSTATE_UINT8(vga.st01, CirrusVGAState),
2729 VMSTATE_UINT8(vga.dac_state, CirrusVGAState),
2730 VMSTATE_UINT8(vga.dac_sub_index, CirrusVGAState),
2731 VMSTATE_UINT8(vga.dac_read_index, CirrusVGAState),
2732 VMSTATE_UINT8(vga.dac_write_index, CirrusVGAState),
2733 VMSTATE_BUFFER(vga.dac_cache, CirrusVGAState),
2734 VMSTATE_BUFFER(vga.palette, CirrusVGAState),
2735 VMSTATE_INT32(vga.bank_offset, CirrusVGAState),
2736 VMSTATE_UINT8(cirrus_hidden_dac_lockindex, CirrusVGAState),
2737 VMSTATE_UINT8(cirrus_hidden_dac_data, CirrusVGAState),
2738 VMSTATE_UINT32(hw_cursor_x, CirrusVGAState),
2739 VMSTATE_UINT32(hw_cursor_y, CirrusVGAState),
2740 /* XXX: we do not save the bitblt state - we assume we do not save
2741 the state when the blitter is active */
2742 VMSTATE_END_OF_LIST()
2743 }
2744};
2745
2746static const VMStateDescription vmstate_pci_cirrus_vga = {
2747 .name = "cirrus_vga",
2748 .version_id = 2,
2749 .minimum_version_id = 2,
2750 .minimum_version_id_old = 2,
2751 .fields = (VMStateField []) {
2752 VMSTATE_PCI_DEVICE(dev, PCICirrusVGAState),
2753 VMSTATE_STRUCT(cirrus_vga, PCICirrusVGAState, 0,
2754 vmstate_cirrus_vga, CirrusVGAState),
2755 VMSTATE_END_OF_LIST()
2756 }
2757};
2758
2759/***************************************
2760 *
2761 * initialize
2762 *
2763 ***************************************/
2764
2765static void cirrus_reset(void *opaque)
2766{
2767 CirrusVGAState *s = opaque;
2768
2769 vga_common_reset(&s->vga);
2770 unmap_linear_vram(s);
2771 s->vga.sr[0x06] = 0x0f;
2772 if (s->device_id == CIRRUS_ID_CLGD5446) {
2773 /* 4MB 64 bit memory config, always PCI */
2774 s->vga.sr[0x1F] = 0x2d; // MemClock
2775 s->vga.gr[0x18] = 0x0f; // fastest memory configuration
2776 s->vga.sr[0x0f] = 0x98;
2777 s->vga.sr[0x17] = 0x20;
2778 s->vga.sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2779 } else {
2780 s->vga.sr[0x1F] = 0x22; // MemClock
2781 s->vga.sr[0x0F] = CIRRUS_MEMSIZE_2M;
2782 s->vga.sr[0x17] = s->bustype;
2783 s->vga.sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2784 }
2785 s->vga.cr[0x27] = s->device_id;
2786
2787 /* Win2K seems to assume that the pattern buffer is at 0xff
2788 initially ! */
2789 memset(s->vga.vram_ptr, 0xff, s->real_vram_size);
2790
2791 s->cirrus_hidden_dac_lockindex = 5;
2792 s->cirrus_hidden_dac_data = 0;
2793}
2794
2795static const MemoryRegionOps cirrus_linear_io_ops = {
2796 .read = cirrus_linear_read,
2797 .write = cirrus_linear_write,
2798 .endianness = DEVICE_LITTLE_ENDIAN,
2799 .impl = {
2800 .min_access_size = 1,
2801 .max_access_size = 1,
2802 },
2803};
2804
2805static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci,
2806 MemoryRegion *system_memory)
2807{
2808 int i;
2809 static int inited;
2810
2811 if (!inited) {
2812 inited = 1;
2813 for(i = 0;i < 256; i++)
2814 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2815 rop_to_index[CIRRUS_ROP_0] = 0;
2816 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2817 rop_to_index[CIRRUS_ROP_NOP] = 2;
2818 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2819 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2820 rop_to_index[CIRRUS_ROP_SRC] = 5;
2821 rop_to_index[CIRRUS_ROP_1] = 6;
2822 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2823 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2824 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2825 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2826 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2827 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2828 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2829 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2830 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2831 s->device_id = device_id;
2832 if (is_pci)
2833 s->bustype = CIRRUS_BUSTYPE_PCI;
2834 else
2835 s->bustype = CIRRUS_BUSTYPE_ISA;
2836 }
2837
2838 register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
2839
2840 register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
2841 register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
2842 register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
2843 register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
2844
2845 register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
2846
2847 register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
2848 register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
2849 register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
2850 register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
2851
2852 memory_region_init(&s->low_mem_container,
2853 "cirrus-lowmem-container",
2854 0x20000);
2855
2856 memory_region_init_io(&s->low_mem, &cirrus_vga_mem_ops, s,
2857 "cirrus-low-memory", 0x20000);
2858 memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
2859 memory_region_add_subregion_overlap(system_memory,
2860 isa_mem_base + 0x000a0000,
2861 &s->low_mem_container,
2862 1);
2863 memory_region_set_coalescing(&s->low_mem);
2864
2865 /* I/O handler for LFB */
2866 memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
2867 "cirrus-linear-io", VGA_RAM_SIZE);
2868
2869 /* I/O handler for LFB */
2870 memory_region_init_io(&s->cirrus_linear_bitblt_io,
2871 &cirrus_linear_bitblt_io_ops,
2872 s,
2873 "cirrus-bitblt-mmio",
2874 0x400000);
2875
2876 /* I/O handler for memory-mapped I/O */
2877 memory_region_init_io(&s->cirrus_mmio_io, &cirrus_mmio_io_ops, s,
2878 "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
2879
2880 s->real_vram_size =
2881 (s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
2882
2883 /* XXX: s->vga.vram_size must be a power of two */
2884 s->cirrus_addr_mask = s->real_vram_size - 1;
2885 s->linear_mmio_mask = s->real_vram_size - 256;
2886
2887 s->vga.get_bpp = cirrus_get_bpp;
2888 s->vga.get_offsets = cirrus_get_offsets;
2889 s->vga.get_resolution = cirrus_get_resolution;
2890 s->vga.cursor_invalidate = cirrus_cursor_invalidate;
2891 s->vga.cursor_draw_line = cirrus_cursor_draw_line;
2892
2893 qemu_register_reset(cirrus_reset, s);
2894}
2895
2896/***************************************
2897 *
2898 * ISA bus support
2899 *
2900 ***************************************/
2901
2902void isa_cirrus_vga_init(MemoryRegion *system_memory)
2903{
2904 CirrusVGAState *s;
2905
2906 s = g_malloc0(sizeof(CirrusVGAState));
2907
2908 vga_common_init(&s->vga, VGA_RAM_SIZE);
2909 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0, system_memory);
2910 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
2911 s->vga.screen_dump, s->vga.text_update,
2912 &s->vga);
2913 vmstate_register(NULL, 0, &vmstate_cirrus_vga, s);
2914 rom_add_vga(VGABIOS_CIRRUS_FILENAME);
2915 /* XXX ISA-LFB support */
2916}
2917
2918/***************************************
2919 *
2920 * PCI bus support
2921 *
2922 ***************************************/
2923
2924static int pci_cirrus_vga_initfn(PCIDevice *dev)
2925{
2926 PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
2927 CirrusVGAState *s = &d->cirrus_vga;
2928 PCIDeviceInfo *info = DO_UPCAST(PCIDeviceInfo, qdev, dev->qdev.info);
2929 int16_t device_id = info->device_id;
2930
2931 /* setup VGA */
2932 vga_common_init(&s->vga, VGA_RAM_SIZE);
2933 cirrus_init_common(s, device_id, 1, pci_address_space(dev));
2934 s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
2935 s->vga.screen_dump, s->vga.text_update,
2936 &s->vga);
2937
2938 /* setup PCI */
2939
2940 memory_region_init(&s->pci_bar, "cirrus-pci-bar0", 0x2000000);
2941
2942 /* XXX: add byte swapping apertures */
2943 memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
2944 memory_region_add_subregion(&s->pci_bar, 0x1000000,
2945 &s->cirrus_linear_bitblt_io);
2946
2947 /* setup memory space */
2948 /* memory #0 LFB */
2949 /* memory #1 memory-mapped I/O */
2950 /* XXX: s->vga.vram_size must be a power of two */
2951 pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->pci_bar);
2952 if (device_id == CIRRUS_ID_CLGD5446) {
2953 pci_register_bar(&d->dev, 1, 0, &s->cirrus_mmio_io);
2954 }
2955 return 0;
2956}
2957
2958void pci_cirrus_vga_init(PCIBus *bus)
2959{
2960 pci_create_simple(bus, -1, "cirrus-vga");
2961}
2962
2963static PCIDeviceInfo cirrus_vga_info = {
2964 .qdev.name = "cirrus-vga",
2965 .qdev.desc = "Cirrus CLGD 54xx VGA",
2966 .qdev.size = sizeof(PCICirrusVGAState),
2967 .qdev.vmsd = &vmstate_pci_cirrus_vga,
2968 .no_hotplug = 1,
2969 .init = pci_cirrus_vga_initfn,
2970 .romfile = VGABIOS_CIRRUS_FILENAME,
2971 .vendor_id = PCI_VENDOR_ID_CIRRUS,
2972 .device_id = CIRRUS_ID_CLGD5446,
2973 .class_id = PCI_CLASS_DISPLAY_VGA,
2974};
2975
2976static void cirrus_vga_register(void)
2977{
2978 pci_qdev_register(&cirrus_vga_info);
2979}
2980device_init(cirrus_vga_register);
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