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e6e5ad80 1/*
aeb3c85f 2 * QEMU Cirrus CLGD 54xx VGA Emulator.
e6e5ad80
FB		 3 *
4 * Copyright (c) 2004 Fabrice Bellard
aeb3c85f 5 * Copyright (c) 2004 Makoto Suzuki (suzu)
e6e5ad80
FB		 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 */
aeb3c85f
FB		 25/*
26 * Reference: Finn Thogersons' VGADOC4b
27 * available at http://home.worldonline.dk/~finth/
28 */
e6e5ad80
FB		 29#include "vl.h"
30#include "vga_int.h"
31
a5082316
FB		 32/*
33 * TODO:
34 * - add support for WRITEMASK (GR2F)
a5082316
FB		 35 * - optimize linear mappings
36 * - optimize bitblt functions
37 */
38
e36f36e1 39//#define DEBUG_CIRRUS
a21ae81d 40//#define DEBUG_BITBLT
e36f36e1 41
e6e5ad80
FB		 42/***************************************
43 *
44 * definitions
45 *
46 ***************************************/
47
48#define qemu_MIN(a,b) ((a) < (b) ? (a) : (b))
49
50// ID
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)
a21ae81d 57#define CIRRUS_ID_CLGD5436 (0x2B<<2)
e6e5ad80
FB		 58#define CIRRUS_ID_CLGD5446 (0x2E<<2)
59
60// sequencer 0x07
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
70
71// sequencer 0x0f
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.
76
77// sequencer 0x12
78#define CIRRUS_CURSOR_SHOW 0x01
79#define CIRRUS_CURSOR_HIDDENPEL 0x02
80#define CIRRUS_CURSOR_LARGE 0x04 // 64x64 if set, 32x32 if clear
81
82// sequencer 0x17
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
90
91// control 0x0b
92#define CIRRUS_BANKING_DUAL 0x01
93#define CIRRUS_BANKING_GRANULARITY_16K 0x20 // set:16k, clear:4k
94
95// control 0x30
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
107
108// control 0x31
109#define CIRRUS_BLT_BUSY 0x01
110#define CIRRUS_BLT_START 0x02
111#define CIRRUS_BLT_RESET 0x04
112#define CIRRUS_BLT_FIFOUSED 0x10
a5082316 113#define CIRRUS_BLT_AUTOSTART 0x80
e6e5ad80
FB		 114
115// control 0x32
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
132
a5082316
FB		 133#define CIRRUS_ROP_NOP_INDEX 2
134#define CIRRUS_ROP_SRC_INDEX 5
135
a21ae81d 136// control 0x33
a5082316 137#define CIRRUS_BLTMODEEXT_SOLIDFILL 0x04
4c8732d7 138#define CIRRUS_BLTMODEEXT_COLOREXPINV 0x02
a5082316 139#define CIRRUS_BLTMODEEXT_DWORDGRANULARITY 0x01
a21ae81d 140
e6e5ad80
FB		 141// memory-mapped IO
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
171
172// PCI 0x00: vendor, 0x02: device
173#define PCI_VENDOR_CIRRUS 0x1013
e6e5ad80
FB		 174#define PCI_DEVICE_CLGD5462 0x00d0
175#define PCI_DEVICE_CLGD5465 0x00d6
a21ae81d 176
e6e5ad80
FB		 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
212
a21ae81d 213#define CIRRUS_PNPMMIO_SIZE 0x1000
e6e5ad80
FB		 214
215
216/* I/O and memory hook */
217#define CIRRUS_HOOK_NOT_HANDLED 0
218#define CIRRUS_HOOK_HANDLED 1
219
a5082316
FB		 220struct CirrusVGAState;
221typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
222 uint8_t * dst, const uint8_t * src,
e6e5ad80
FB		 223 int dstpitch, int srcpitch,
224 int bltwidth, int bltheight);
a5082316
FB		 225typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
226 uint8_t *dst, int dst_pitch, int width, int height);
e6e5ad80
FB		 227
228typedef struct CirrusVGAState {
4e3e9d0b 229 VGA_STATE_COMMON
e6e5ad80
FB		 230
231 int cirrus_linear_io_addr;
a5082316 232 int cirrus_linear_bitblt_io_addr;
e6e5ad80
FB		 233 int cirrus_mmio_io_addr;
234 uint32_t cirrus_addr_mask;
78e127ef 235 uint32_t linear_mmio_mask;
e6e5ad80
FB		 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];
a5082316
FB		 243 uint32_t hw_cursor_x;
244 uint32_t hw_cursor_y;
e6e5ad80
FB		 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;
a5082316
FB		 250 uint32_t cirrus_blt_fgcol;
251 uint32_t cirrus_blt_bgcol;
e6e5ad80
FB		 252 uint32_t cirrus_blt_dstaddr;
253 uint32_t cirrus_blt_srcaddr;
254 uint8_t cirrus_blt_mode;
a5082316 255 uint8_t cirrus_blt_modeext;
e6e5ad80 256 cirrus_bitblt_rop_t cirrus_rop;
a5082316 257#define CIRRUS_BLTBUFSIZE (2048 * 4) /* one line width */
e6e5ad80
FB		 258 uint8_t cirrus_bltbuf[CIRRUS_BLTBUFSIZE];
259 uint8_t *cirrus_srcptr;
260 uint8_t *cirrus_srcptr_end;
261 uint32_t cirrus_srccounter;
a5082316
FB		 262 /* hwcursor display state */
263 int last_hw_cursor_size;
264 int last_hw_cursor_x;
265 int last_hw_cursor_y;
266 int last_hw_cursor_y_start;
267 int last_hw_cursor_y_end;
78e127ef 268 int real_vram_size; /* XXX: suppress that */
8926b517 269 CPUWriteMemoryFunc **cirrus_linear_write;
e6e5ad80
FB		 270} CirrusVGAState;
271
272typedef struct PCICirrusVGAState {
273 PCIDevice dev;
274 CirrusVGAState cirrus_vga;
275} PCICirrusVGAState;
276
a5082316
FB		 277static uint8_t rop_to_index[256];
278
e6e5ad80
FB		 279/***************************************
280 *
281 * prototypes.
282 *
283 ***************************************/
284
285
8926b517
FB		 286static void cirrus_bitblt_reset(CirrusVGAState *s);
287static void cirrus_update_memory_access(CirrusVGAState *s);
e6e5ad80
FB		 288
289/***************************************
290 *
291 * raster operations
292 *
293 ***************************************/
294
a5082316
FB		 295static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
296 uint8_t *dst,const uint8_t *src,
297 int dstpitch,int srcpitch,
298 int bltwidth,int bltheight)
299{
e6e5ad80
FB		 300}
301
a5082316
FB		 302static void cirrus_bitblt_fill_nop(CirrusVGAState *s,
303 uint8_t *dst,
304 int dstpitch, int bltwidth,int bltheight)
e6e5ad80 305{
a5082316 306}
e6e5ad80 307
a5082316
FB		 308#define ROP_NAME 0
309#define ROP_OP(d, s) d = 0
310#include "cirrus_vga_rop.h"
e6e5ad80 311
a5082316
FB		 312#define ROP_NAME src_and_dst
313#define ROP_OP(d, s) d = (s) & (d)
314#include "cirrus_vga_rop.h"
e6e5ad80 315
a5082316
FB		 316#define ROP_NAME src_and_notdst
317#define ROP_OP(d, s) d = (s) & (~(d))
318#include "cirrus_vga_rop.h"
e6e5ad80 319
a5082316
FB		 320#define ROP_NAME notdst
321#define ROP_OP(d, s) d = ~(d)
322#include "cirrus_vga_rop.h"
e6e5ad80 323
a5082316
FB		 324#define ROP_NAME src
325#define ROP_OP(d, s) d = s
326#include "cirrus_vga_rop.h"
e6e5ad80 327
a5082316 328#define ROP_NAME 1
4c8732d7 329#define ROP_OP(d, s) d = ~0
a5082316
FB		 330#include "cirrus_vga_rop.h"
331
332#define ROP_NAME notsrc_and_dst
333#define ROP_OP(d, s) d = (~(s)) & (d)
334#include "cirrus_vga_rop.h"
335
336#define ROP_NAME src_xor_dst
337#define ROP_OP(d, s) d = (s) ^ (d)
338#include "cirrus_vga_rop.h"
339
340#define ROP_NAME src_or_dst
341#define ROP_OP(d, s) d = (s) | (d)
342#include "cirrus_vga_rop.h"
343
344#define ROP_NAME notsrc_or_notdst
345#define ROP_OP(d, s) d = (~(s)) | (~(d))
346#include "cirrus_vga_rop.h"
347
348#define ROP_NAME src_notxor_dst
349#define ROP_OP(d, s) d = ~((s) ^ (d))
350#include "cirrus_vga_rop.h"
e6e5ad80 351
a5082316
FB		 352#define ROP_NAME src_or_notdst
353#define ROP_OP(d, s) d = (s) | (~(d))
354#include "cirrus_vga_rop.h"
355
356#define ROP_NAME notsrc
357#define ROP_OP(d, s) d = (~(s))
358#include "cirrus_vga_rop.h"
359
360#define ROP_NAME notsrc_or_dst
361#define ROP_OP(d, s) d = (~(s)) | (d)
362#include "cirrus_vga_rop.h"
363
364#define ROP_NAME notsrc_and_notdst
365#define ROP_OP(d, s) d = (~(s)) & (~(d))
366#include "cirrus_vga_rop.h"
367
368static const cirrus_bitblt_rop_t cirrus_fwd_rop[16] = {
369 cirrus_bitblt_rop_fwd_0,
370 cirrus_bitblt_rop_fwd_src_and_dst,
371 cirrus_bitblt_rop_nop,
372 cirrus_bitblt_rop_fwd_src_and_notdst,
373 cirrus_bitblt_rop_fwd_notdst,
374 cirrus_bitblt_rop_fwd_src,
375 cirrus_bitblt_rop_fwd_1,
376 cirrus_bitblt_rop_fwd_notsrc_and_dst,
377 cirrus_bitblt_rop_fwd_src_xor_dst,
378 cirrus_bitblt_rop_fwd_src_or_dst,
379 cirrus_bitblt_rop_fwd_notsrc_or_notdst,
380 cirrus_bitblt_rop_fwd_src_notxor_dst,
381 cirrus_bitblt_rop_fwd_src_or_notdst,
382 cirrus_bitblt_rop_fwd_notsrc,
383 cirrus_bitblt_rop_fwd_notsrc_or_dst,
384 cirrus_bitblt_rop_fwd_notsrc_and_notdst,
385};
386
387static const cirrus_bitblt_rop_t cirrus_bkwd_rop[16] = {
388 cirrus_bitblt_rop_bkwd_0,
389 cirrus_bitblt_rop_bkwd_src_and_dst,
390 cirrus_bitblt_rop_nop,
391 cirrus_bitblt_rop_bkwd_src_and_notdst,
392 cirrus_bitblt_rop_bkwd_notdst,
393 cirrus_bitblt_rop_bkwd_src,
394 cirrus_bitblt_rop_bkwd_1,
395 cirrus_bitblt_rop_bkwd_notsrc_and_dst,
396 cirrus_bitblt_rop_bkwd_src_xor_dst,
397 cirrus_bitblt_rop_bkwd_src_or_dst,
398 cirrus_bitblt_rop_bkwd_notsrc_or_notdst,
399 cirrus_bitblt_rop_bkwd_src_notxor_dst,
400 cirrus_bitblt_rop_bkwd_src_or_notdst,
401 cirrus_bitblt_rop_bkwd_notsrc,
402 cirrus_bitblt_rop_bkwd_notsrc_or_dst,
403 cirrus_bitblt_rop_bkwd_notsrc_and_notdst,
404};
405
406#define ROP2(name) {\
407 name ## _8,\
408 name ## _16,\
409 name ## _24,\
410 name ## _32,\
411 }
412
413#define ROP_NOP2(func) {\
414 func,\
415 func,\
416 func,\
417 func,\
418 }
419
e69390ce
FB		 420static const cirrus_bitblt_rop_t cirrus_patternfill[16][4] = {
421 ROP2(cirrus_patternfill_0),
422 ROP2(cirrus_patternfill_src_and_dst),
423 ROP_NOP2(cirrus_bitblt_rop_nop),
424 ROP2(cirrus_patternfill_src_and_notdst),
425 ROP2(cirrus_patternfill_notdst),
426 ROP2(cirrus_patternfill_src),
427 ROP2(cirrus_patternfill_1),
428 ROP2(cirrus_patternfill_notsrc_and_dst),
429 ROP2(cirrus_patternfill_src_xor_dst),
430 ROP2(cirrus_patternfill_src_or_dst),
431 ROP2(cirrus_patternfill_notsrc_or_notdst),
432 ROP2(cirrus_patternfill_src_notxor_dst),
433 ROP2(cirrus_patternfill_src_or_notdst),
434 ROP2(cirrus_patternfill_notsrc),
435 ROP2(cirrus_patternfill_notsrc_or_dst),
436 ROP2(cirrus_patternfill_notsrc_and_notdst),
437};
438
a5082316
FB		 439static const cirrus_bitblt_rop_t cirrus_colorexpand_transp[16][4] = {
440 ROP2(cirrus_colorexpand_transp_0),
441 ROP2(cirrus_colorexpand_transp_src_and_dst),
442 ROP_NOP2(cirrus_bitblt_rop_nop),
443 ROP2(cirrus_colorexpand_transp_src_and_notdst),
444 ROP2(cirrus_colorexpand_transp_notdst),
445 ROP2(cirrus_colorexpand_transp_src),
446 ROP2(cirrus_colorexpand_transp_1),
447 ROP2(cirrus_colorexpand_transp_notsrc_and_dst),
448 ROP2(cirrus_colorexpand_transp_src_xor_dst),
449 ROP2(cirrus_colorexpand_transp_src_or_dst),
450 ROP2(cirrus_colorexpand_transp_notsrc_or_notdst),
451 ROP2(cirrus_colorexpand_transp_src_notxor_dst),
452 ROP2(cirrus_colorexpand_transp_src_or_notdst),
453 ROP2(cirrus_colorexpand_transp_notsrc),
454 ROP2(cirrus_colorexpand_transp_notsrc_or_dst),
455 ROP2(cirrus_colorexpand_transp_notsrc_and_notdst),
456};
457
458static const cirrus_bitblt_rop_t cirrus_colorexpand[16][4] = {
459 ROP2(cirrus_colorexpand_0),
460 ROP2(cirrus_colorexpand_src_and_dst),
461 ROP_NOP2(cirrus_bitblt_rop_nop),
462 ROP2(cirrus_colorexpand_src_and_notdst),
463 ROP2(cirrus_colorexpand_notdst),
464 ROP2(cirrus_colorexpand_src),
465 ROP2(cirrus_colorexpand_1),
466 ROP2(cirrus_colorexpand_notsrc_and_dst),
467 ROP2(cirrus_colorexpand_src_xor_dst),
468 ROP2(cirrus_colorexpand_src_or_dst),
469 ROP2(cirrus_colorexpand_notsrc_or_notdst),
470 ROP2(cirrus_colorexpand_src_notxor_dst),
471 ROP2(cirrus_colorexpand_src_or_notdst),
472 ROP2(cirrus_colorexpand_notsrc),
473 ROP2(cirrus_colorexpand_notsrc_or_dst),
474 ROP2(cirrus_colorexpand_notsrc_and_notdst),
475};
476
b30d4608
FB		 477static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern_transp[16][4] = {
478 ROP2(cirrus_colorexpand_pattern_transp_0),
479 ROP2(cirrus_colorexpand_pattern_transp_src_and_dst),
480 ROP_NOP2(cirrus_bitblt_rop_nop),
481 ROP2(cirrus_colorexpand_pattern_transp_src_and_notdst),
482 ROP2(cirrus_colorexpand_pattern_transp_notdst),
483 ROP2(cirrus_colorexpand_pattern_transp_src),
484 ROP2(cirrus_colorexpand_pattern_transp_1),
485 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_dst),
486 ROP2(cirrus_colorexpand_pattern_transp_src_xor_dst),
487 ROP2(cirrus_colorexpand_pattern_transp_src_or_dst),
488 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_notdst),
489 ROP2(cirrus_colorexpand_pattern_transp_src_notxor_dst),
490 ROP2(cirrus_colorexpand_pattern_transp_src_or_notdst),
491 ROP2(cirrus_colorexpand_pattern_transp_notsrc),
492 ROP2(cirrus_colorexpand_pattern_transp_notsrc_or_dst),
493 ROP2(cirrus_colorexpand_pattern_transp_notsrc_and_notdst),
494};
495
496static const cirrus_bitblt_rop_t cirrus_colorexpand_pattern[16][4] = {
497 ROP2(cirrus_colorexpand_pattern_0),
498 ROP2(cirrus_colorexpand_pattern_src_and_dst),
499 ROP_NOP2(cirrus_bitblt_rop_nop),
500 ROP2(cirrus_colorexpand_pattern_src_and_notdst),
501 ROP2(cirrus_colorexpand_pattern_notdst),
502 ROP2(cirrus_colorexpand_pattern_src),
503 ROP2(cirrus_colorexpand_pattern_1),
504 ROP2(cirrus_colorexpand_pattern_notsrc_and_dst),
505 ROP2(cirrus_colorexpand_pattern_src_xor_dst),
506 ROP2(cirrus_colorexpand_pattern_src_or_dst),
507 ROP2(cirrus_colorexpand_pattern_notsrc_or_notdst),
508 ROP2(cirrus_colorexpand_pattern_src_notxor_dst),
509 ROP2(cirrus_colorexpand_pattern_src_or_notdst),
510 ROP2(cirrus_colorexpand_pattern_notsrc),
511 ROP2(cirrus_colorexpand_pattern_notsrc_or_dst),
512 ROP2(cirrus_colorexpand_pattern_notsrc_and_notdst),
513};
514
a5082316
FB		 515static const cirrus_fill_t cirrus_fill[16][4] = {
516 ROP2(cirrus_fill_0),
517 ROP2(cirrus_fill_src_and_dst),
518 ROP_NOP2(cirrus_bitblt_fill_nop),
519 ROP2(cirrus_fill_src_and_notdst),
520 ROP2(cirrus_fill_notdst),
521 ROP2(cirrus_fill_src),
522 ROP2(cirrus_fill_1),
523 ROP2(cirrus_fill_notsrc_and_dst),
524 ROP2(cirrus_fill_src_xor_dst),
525 ROP2(cirrus_fill_src_or_dst),
526 ROP2(cirrus_fill_notsrc_or_notdst),
527 ROP2(cirrus_fill_src_notxor_dst),
528 ROP2(cirrus_fill_src_or_notdst),
529 ROP2(cirrus_fill_notsrc),
530 ROP2(cirrus_fill_notsrc_or_dst),
531 ROP2(cirrus_fill_notsrc_and_notdst),
532};
533
534static inline void cirrus_bitblt_fgcol(CirrusVGAState *s)
e6e5ad80 535{
a5082316
FB		 536 unsigned int color;
537 switch (s->cirrus_blt_pixelwidth) {
538 case 1:
539 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1;
540 break;
541 case 2:
542 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8);
543 s->cirrus_blt_fgcol = le16_to_cpu(color);
544 break;
545 case 3:
546 s->cirrus_blt_fgcol = s->cirrus_shadow_gr1 |
547 (s->gr[0x11] << 8) | (s->gr[0x13] << 16);
548 break;
549 default:
550 case 4:
551 color = s->cirrus_shadow_gr1 | (s->gr[0x11] << 8) |
552 (s->gr[0x13] << 16) | (s->gr[0x15] << 24);
553 s->cirrus_blt_fgcol = le32_to_cpu(color);
554 break;
e6e5ad80
FB		 555 }
556}
557
a5082316 558static inline void cirrus_bitblt_bgcol(CirrusVGAState *s)
e6e5ad80 559{
a5082316 560 unsigned int color;
e6e5ad80
FB		 561 switch (s->cirrus_blt_pixelwidth) {
562 case 1:
a5082316
FB		 563 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0;
564 break;
e6e5ad80 565 case 2:
a5082316
FB		 566 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8);
567 s->cirrus_blt_bgcol = le16_to_cpu(color);
568 break;
e6e5ad80 569 case 3:
a5082316
FB		 570 s->cirrus_blt_bgcol = s->cirrus_shadow_gr0 |
571 (s->gr[0x10] << 8) | (s->gr[0x12] << 16);
572 break;
e6e5ad80 573 default:
a5082316
FB		 574 case 4:
575 color = s->cirrus_shadow_gr0 | (s->gr[0x10] << 8) |
576 (s->gr[0x12] << 16) | (s->gr[0x14] << 24);
577 s->cirrus_blt_bgcol = le32_to_cpu(color);
578 break;
e6e5ad80
FB		 579 }
580}
581
582static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
583 int off_pitch, int bytesperline,
584 int lines)
585{
586 int y;
587 int off_cur;
588 int off_cur_end;
589
590 for (y = 0; y < lines; y++) {
591 off_cur = off_begin;
592 off_cur_end = off_cur + bytesperline;
593 off_cur &= TARGET_PAGE_MASK;
594 while (off_cur < off_cur_end) {
595 cpu_physical_memory_set_dirty(s->vram_offset + off_cur);
596 off_cur += TARGET_PAGE_SIZE;
597 }
598 off_begin += off_pitch;
599 }
600}
601
e6e5ad80
FB		 602static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
603 const uint8_t * src)
604{
e6e5ad80 605 uint8_t *dst;
e6e5ad80 606
e6e5ad80 607 dst = s->vram_ptr + s->cirrus_blt_dstaddr;
e69390ce
FB		 608 (*s->cirrus_rop) (s, dst, src,
609 s->cirrus_blt_dstpitch, 0,
610 s->cirrus_blt_width, s->cirrus_blt_height);
e6e5ad80 611 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
e69390ce
FB		 612 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
613 s->cirrus_blt_height);
e6e5ad80
FB		 614 return 1;
615}
616
a21ae81d
FB		 617/* fill */
618
a5082316 619static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
a21ae81d 620{
a5082316 621 cirrus_fill_t rop_func;
a21ae81d 622
a5082316
FB		 623 rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
624 rop_func(s, s->vram_ptr + s->cirrus_blt_dstaddr,
625 s->cirrus_blt_dstpitch,
626 s->cirrus_blt_width, s->cirrus_blt_height);
a21ae81d
FB		 627 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
628 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
629 s->cirrus_blt_height);
630 cirrus_bitblt_reset(s);
631 return 1;
632}
633
e6e5ad80
FB		 634/***************************************
635 *
636 * bitblt (video-to-video)
637 *
638 ***************************************/
639
640static int cirrus_bitblt_videotovideo_patterncopy(CirrusVGAState * s)
641{
642 return cirrus_bitblt_common_patterncopy(s,
e69390ce
FB		 643 s->vram_ptr +
644 (s->cirrus_blt_srcaddr & ~7));
e6e5ad80
FB		 645}
646
647static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
648{
a5082316 649 (*s->cirrus_rop) (s, s->vram_ptr + s->cirrus_blt_dstaddr,
e6e5ad80
FB		 650 s->vram_ptr + s->cirrus_blt_srcaddr,
651 s->cirrus_blt_dstpitch, s->cirrus_blt_srcpitch,
652 s->cirrus_blt_width, s->cirrus_blt_height);
653 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr,
654 s->cirrus_blt_dstpitch, s->cirrus_blt_width,
655 s->cirrus_blt_height);
656 return 1;
657}
658
659/***************************************
660 *
661 * bitblt (cpu-to-video)
662 *
663 ***************************************/
664
e6e5ad80
FB		 665static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s)
666{
667 int copy_count;
a5082316
FB		 668 uint8_t *end_ptr;
669
e6e5ad80 670 if (s->cirrus_srccounter > 0) {
a5082316
FB		 671 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
672 cirrus_bitblt_common_patterncopy(s, s->cirrus_bltbuf);
673 the_end:
674 s->cirrus_srccounter = 0;
675 cirrus_bitblt_reset(s);
676 } else {
677 /* at least one scan line */
678 do {
679 (*s->cirrus_rop)(s, s->vram_ptr + s->cirrus_blt_dstaddr,
680 s->cirrus_bltbuf, 0, 0, s->cirrus_blt_width, 1);
681 cirrus_invalidate_region(s, s->cirrus_blt_dstaddr, 0,
682 s->cirrus_blt_width, 1);
683 s->cirrus_blt_dstaddr += s->cirrus_blt_dstpitch;
684 s->cirrus_srccounter -= s->cirrus_blt_srcpitch;
685 if (s->cirrus_srccounter <= 0)
686 goto the_end;
687 /* more bytes than needed can be transfered because of
688 word alignment, so we keep them for the next line */
689 /* XXX: keep alignment to speed up transfer */
690 end_ptr = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
691 copy_count = s->cirrus_srcptr_end - end_ptr;
692 memmove(s->cirrus_bltbuf, end_ptr, copy_count);
693 s->cirrus_srcptr = s->cirrus_bltbuf + copy_count;
694 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
695 } while (s->cirrus_srcptr >= s->cirrus_srcptr_end);
696 }
e6e5ad80
FB		 697 }
698}
699
700/***************************************
701 *
702 * bitblt wrapper
703 *
704 ***************************************/
705
706static void cirrus_bitblt_reset(CirrusVGAState * s)
707{
708 s->gr[0x31] &=
709 ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED);
710 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
711 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
712 s->cirrus_srccounter = 0;
8926b517 713 cirrus_update_memory_access(s);
e6e5ad80
FB		 714}
715
716static int cirrus_bitblt_cputovideo(CirrusVGAState * s)
717{
a5082316
FB		 718 int w;
719
e6e5ad80
FB		 720 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_MEMSYSSRC;
721 s->cirrus_srcptr = &s->cirrus_bltbuf[0];
722 s->cirrus_srcptr_end = &s->cirrus_bltbuf[0];
723
724 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
725 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316 726 s->cirrus_blt_srcpitch = 8;
e6e5ad80 727 } else {
b30d4608 728 /* XXX: check for 24 bpp */
a5082316 729 s->cirrus_blt_srcpitch = 8 * 8 * s->cirrus_blt_pixelwidth;
e6e5ad80 730 }
a5082316 731 s->cirrus_srccounter = s->cirrus_blt_srcpitch;
e6e5ad80
FB		 732 } else {
733 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
a5082316
FB		 734 w = s->cirrus_blt_width / s->cirrus_blt_pixelwidth;
735 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_DWORDGRANULARITY)
736 s->cirrus_blt_srcpitch = ((w + 31) >> 5);
737 else
738 s->cirrus_blt_srcpitch = ((w + 7) >> 3);
e6e5ad80 739 } else {
e6e5ad80
FB		 740 s->cirrus_blt_srcpitch = s->cirrus_blt_width;
741 }
a5082316 742 s->cirrus_srccounter = s->cirrus_blt_srcpitch * s->cirrus_blt_height;
e6e5ad80 743 }
a5082316
FB		 744 s->cirrus_srcptr = s->cirrus_bltbuf;
745 s->cirrus_srcptr_end = s->cirrus_bltbuf + s->cirrus_blt_srcpitch;
8926b517 746 cirrus_update_memory_access(s);
e6e5ad80
FB		 747 return 1;
748}
749
750static int cirrus_bitblt_videotocpu(CirrusVGAState * s)
751{
752 /* XXX */
a5082316 753#ifdef DEBUG_BITBLT
e6e5ad80
FB		 754 printf("cirrus: bitblt (video to cpu) is not implemented yet\n");
755#endif
756 return 0;
757}
758
759static int cirrus_bitblt_videotovideo(CirrusVGAState * s)
760{
761 int ret;
762
763 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
764 ret = cirrus_bitblt_videotovideo_patterncopy(s);
765 } else {
766 ret = cirrus_bitblt_videotovideo_copy(s);
767 }
e6e5ad80
FB		 768 if (ret)
769 cirrus_bitblt_reset(s);
770 return ret;
771}
772
773static void cirrus_bitblt_start(CirrusVGAState * s)
774{
775 uint8_t blt_rop;
776
a5082316
FB		 777 s->gr[0x31] |= CIRRUS_BLT_BUSY;
778
e6e5ad80
FB		 779 s->cirrus_blt_width = (s->gr[0x20] | (s->gr[0x21] << 8)) + 1;
780 s->cirrus_blt_height = (s->gr[0x22] | (s->gr[0x23] << 8)) + 1;
781 s->cirrus_blt_dstpitch = (s->gr[0x24] | (s->gr[0x25] << 8));
782 s->cirrus_blt_srcpitch = (s->gr[0x26] | (s->gr[0x27] << 8));
783 s->cirrus_blt_dstaddr =
784 (s->gr[0x28] | (s->gr[0x29] << 8) | (s->gr[0x2a] << 16));
785 s->cirrus_blt_srcaddr =
786 (s->gr[0x2c] | (s->gr[0x2d] << 8) | (s->gr[0x2e] << 16));
787 s->cirrus_blt_mode = s->gr[0x30];
a5082316 788 s->cirrus_blt_modeext = s->gr[0x33];
e6e5ad80
FB		 789 blt_rop = s->gr[0x32];
790
a21ae81d 791#ifdef DEBUG_BITBLT
a5082316 792 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",
a21ae81d
FB		 793 blt_rop,
794 s->cirrus_blt_mode,
a5082316 795 s->cirrus_blt_modeext,
a21ae81d
FB		 796 s->cirrus_blt_width,
797 s->cirrus_blt_height,
798 s->cirrus_blt_dstpitch,
799 s->cirrus_blt_srcpitch,
800 s->cirrus_blt_dstaddr,
a5082316
FB		 801 s->cirrus_blt_srcaddr,
802 s->sr[0x2f]);
a21ae81d
FB		 803#endif
804
e6e5ad80
FB		 805 switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
806 case CIRRUS_BLTMODE_PIXELWIDTH8:
807 s->cirrus_blt_pixelwidth = 1;
808 break;
809 case CIRRUS_BLTMODE_PIXELWIDTH16:
810 s->cirrus_blt_pixelwidth = 2;
811 break;
812 case CIRRUS_BLTMODE_PIXELWIDTH24:
813 s->cirrus_blt_pixelwidth = 3;
814 break;
815 case CIRRUS_BLTMODE_PIXELWIDTH32:
816 s->cirrus_blt_pixelwidth = 4;
817 break;
818 default:
a5082316 819#ifdef DEBUG_BITBLT
e6e5ad80
FB		 820 printf("cirrus: bitblt - pixel width is unknown\n");
821#endif
822 goto bitblt_ignore;
823 }
824 s->cirrus_blt_mode &= ~CIRRUS_BLTMODE_PIXELWIDTHMASK;
825
826 if ((s->
827 cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSSRC |
828 CIRRUS_BLTMODE_MEMSYSDEST))
829 == (CIRRUS_BLTMODE_MEMSYSSRC | CIRRUS_BLTMODE_MEMSYSDEST)) {
a5082316 830#ifdef DEBUG_BITBLT
e6e5ad80
FB		 831 printf("cirrus: bitblt - memory-to-memory copy is requested\n");
832#endif
833 goto bitblt_ignore;
834 }
835
a5082316 836 if ((s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_SOLIDFILL) &&
a21ae81d
FB		 837 (s->cirrus_blt_mode & (CIRRUS_BLTMODE_MEMSYSDEST |
838 CIRRUS_BLTMODE_TRANSPARENTCOMP |
839 CIRRUS_BLTMODE_PATTERNCOPY |
840 CIRRUS_BLTMODE_COLOREXPAND)) ==
841 (CIRRUS_BLTMODE_PATTERNCOPY | CIRRUS_BLTMODE_COLOREXPAND)) {
a5082316
FB		 842 cirrus_bitblt_fgcol(s);
843 cirrus_bitblt_solidfill(s, blt_rop);
e6e5ad80 844 } else {
a5082316
FB		 845 if ((s->cirrus_blt_mode & (CIRRUS_BLTMODE_COLOREXPAND |
846 CIRRUS_BLTMODE_PATTERNCOPY)) ==
847 CIRRUS_BLTMODE_COLOREXPAND) {
848
849 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
b30d4608 850 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
4c8732d7 851 cirrus_bitblt_bgcol(s);
b30d4608 852 else
4c8732d7 853 cirrus_bitblt_fgcol(s);
b30d4608 854 s->cirrus_rop = cirrus_colorexpand_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
a5082316
FB		 855 } else {
856 cirrus_bitblt_fgcol(s);
857 cirrus_bitblt_bgcol(s);
858 s->cirrus_rop = cirrus_colorexpand[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
859 }
e69390ce 860 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_PATTERNCOPY) {
b30d4608
FB		 861 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_COLOREXPAND) {
862 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_TRANSPARENTCOMP) {
863 if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV)
864 cirrus_bitblt_bgcol(s);
865 else
866 cirrus_bitblt_fgcol(s);
867 s->cirrus_rop = cirrus_colorexpand_pattern_transp[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
868 } else {
869 cirrus_bitblt_fgcol(s);
870 cirrus_bitblt_bgcol(s);
871 s->cirrus_rop = cirrus_colorexpand_pattern[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
872 }
873 } else {
874 s->cirrus_rop = cirrus_patternfill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
875 }
a21ae81d 876 } else {
a5082316
FB		 877 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_BACKWARDS) {
878 s->cirrus_blt_dstpitch = -s->cirrus_blt_dstpitch;
879 s->cirrus_blt_srcpitch = -s->cirrus_blt_srcpitch;
880 s->cirrus_rop = cirrus_bkwd_rop[rop_to_index[blt_rop]];
881 } else {
882 s->cirrus_rop = cirrus_fwd_rop[rop_to_index[blt_rop]];
883 }
a21ae81d
FB		 884 }
885
886 // setup bitblt engine.
887 if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSSRC) {
888 if (!cirrus_bitblt_cputovideo(s))
889 goto bitblt_ignore;
890 } else if (s->cirrus_blt_mode & CIRRUS_BLTMODE_MEMSYSDEST) {
891 if (!cirrus_bitblt_videotocpu(s))
892 goto bitblt_ignore;
893 } else {
894 if (!cirrus_bitblt_videotovideo(s))
895 goto bitblt_ignore;
896 }
e6e5ad80 897 }
e6e5ad80
FB		 898 return;
899 bitblt_ignore:;
900 cirrus_bitblt_reset(s);
901}
902
903static void cirrus_write_bitblt(CirrusVGAState * s, unsigned reg_value)
904{
905 unsigned old_value;
906
907 old_value = s->gr[0x31];
908 s->gr[0x31] = reg_value;
909
910 if (((old_value & CIRRUS_BLT_RESET) != 0) &&
911 ((reg_value & CIRRUS_BLT_RESET) == 0)) {
912 cirrus_bitblt_reset(s);
913 } else if (((old_value & CIRRUS_BLT_START) == 0) &&
914 ((reg_value & CIRRUS_BLT_START) != 0)) {
e6e5ad80
FB		 915 cirrus_bitblt_start(s);
916 }
917}
918
919
920/***************************************
921 *
922 * basic parameters
923 *
924 ***************************************/
925
926static void cirrus_get_offsets(VGAState *s1,
927 uint32_t *pline_offset,
928 uint32_t *pstart_addr)
929{
930 CirrusVGAState * s = (CirrusVGAState *)s1;
931 uint32_t start_addr;
932 uint32_t line_offset;
933
934 line_offset = s->cr[0x13]
e36f36e1 935 | ((s->cr[0x1b] & 0x10) << 4);
e6e5ad80
FB		 936 line_offset <<= 3;
937 *pline_offset = line_offset;
938
939 start_addr = (s->cr[0x0c] << 8)
940 | s->cr[0x0d]
941 | ((s->cr[0x1b] & 0x01) << 16)
942 | ((s->cr[0x1b] & 0x0c) << 15)
943 | ((s->cr[0x1d] & 0x80) << 12);
944 *pstart_addr = start_addr;
945}
946
947static uint32_t cirrus_get_bpp16_depth(CirrusVGAState * s)
948{
949 uint32_t ret = 16;
950
951 switch (s->cirrus_hidden_dac_data & 0xf) {
952 case 0:
953 ret = 15;
954 break; /* Sierra HiColor */
955 case 1:
956 ret = 16;
957 break; /* XGA HiColor */
958 default:
959#ifdef DEBUG_CIRRUS
960 printf("cirrus: invalid DAC value %x in 16bpp\n",
961 (s->cirrus_hidden_dac_data & 0xf));
962#endif
963 ret = 15; /* XXX */
964 break;
965 }
966 return ret;
967}
968
969static int cirrus_get_bpp(VGAState *s1)
970{
971 CirrusVGAState * s = (CirrusVGAState *)s1;
972 uint32_t ret = 8;
973
974 if ((s->sr[0x07] & 0x01) != 0) {
975 /* Cirrus SVGA */
976 switch (s->sr[0x07] & CIRRUS_SR7_BPP_MASK) {
977 case CIRRUS_SR7_BPP_8:
978 ret = 8;
979 break;
980 case CIRRUS_SR7_BPP_16_DOUBLEVCLK:
981 ret = cirrus_get_bpp16_depth(s);
982 break;
983 case CIRRUS_SR7_BPP_24:
984 ret = 24;
985 break;
986 case CIRRUS_SR7_BPP_16:
987 ret = cirrus_get_bpp16_depth(s);
988 break;
989 case CIRRUS_SR7_BPP_32:
990 ret = 32;
991 break;
992 default:
993#ifdef DEBUG_CIRRUS
994 printf("cirrus: unknown bpp - sr7=%x\n", s->sr[0x7]);
995#endif
996 ret = 8;
997 break;
998 }
999 } else {
1000 /* VGA */
aeb3c85f 1001 ret = 0;
e6e5ad80
FB		 1002 }
1003
1004 return ret;
1005}
1006
78e127ef
FB		 1007static void cirrus_get_resolution(VGAState *s, int *pwidth, int *pheight)
1008{
1009 int width, height;
1010
1011 width = (s->cr[0x01] + 1) * 8;
1012 height = s->cr[0x12] |
1013 ((s->cr[0x07] & 0x02) << 7) |
1014 ((s->cr[0x07] & 0x40) << 3);
1015 height = (height + 1);
1016 /* interlace support */
1017 if (s->cr[0x1a] & 0x01)
1018 height = height * 2;
1019 *pwidth = width;
1020 *pheight = height;
1021}
1022
e6e5ad80
FB		 1023/***************************************
1024 *
1025 * bank memory
1026 *
1027 ***************************************/
1028
1029static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
1030{
1031 unsigned offset;
1032 unsigned limit;
1033
1034 if ((s->gr[0x0b] & 0x01) != 0) /* dual bank */
1035 offset = s->gr[0x09 + bank_index];
1036 else /* single bank */
1037 offset = s->gr[0x09];
1038
1039 if ((s->gr[0x0b] & 0x20) != 0)
1040 offset <<= 14;
1041 else
1042 offset <<= 12;
1043
1044 if (s->vram_size <= offset)
1045 limit = 0;
1046 else
1047 limit = s->vram_size - offset;
1048
1049 if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
1050 if (limit > 0x8000) {
1051 offset += 0x8000;
1052 limit -= 0x8000;
1053 } else {
1054 limit = 0;
1055 }
1056 }
1057
1058 if (limit > 0) {
1059 s->cirrus_bank_base[bank_index] = offset;
1060 s->cirrus_bank_limit[bank_index] = limit;
1061 } else {
1062 s->cirrus_bank_base[bank_index] = 0;
1063 s->cirrus_bank_limit[bank_index] = 0;
1064 }
1065}
1066
1067/***************************************
1068 *
1069 * I/O access between 0x3c4-0x3c5
1070 *
1071 ***************************************/
1072
1073static int
1074cirrus_hook_read_sr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1075{
1076 switch (reg_index) {
1077 case 0x00: // Standard VGA
1078 case 0x01: // Standard VGA
1079 case 0x02: // Standard VGA
1080 case 0x03: // Standard VGA
1081 case 0x04: // Standard VGA
1082 return CIRRUS_HOOK_NOT_HANDLED;
1083 case 0x06: // Unlock Cirrus extensions
1084 *reg_value = s->sr[reg_index];
1085 break;
e6e5ad80
FB		 1086 case 0x10:
1087 case 0x30:
1088 case 0x50:
1089 case 0x70: // Graphics Cursor X
1090 case 0x90:
1091 case 0xb0:
1092 case 0xd0:
1093 case 0xf0: // Graphics Cursor X
aeb3c85f
FB		 1094 *reg_value = s->sr[0x10];
1095 break;
e6e5ad80
FB		 1096 case 0x11:
1097 case 0x31:
1098 case 0x51:
1099 case 0x71: // Graphics Cursor Y
1100 case 0x91:
1101 case 0xb1:
1102 case 0xd1:
a5082316 1103 case 0xf1: // Graphics Cursor Y
aeb3c85f
FB		 1104 *reg_value = s->sr[0x11];
1105 break;
1106 case 0x05: // ???
1107 case 0x07: // Extended Sequencer Mode
1108 case 0x08: // EEPROM Control
1109 case 0x09: // Scratch Register 0
1110 case 0x0a: // Scratch Register 1
1111 case 0x0b: // VCLK 0
1112 case 0x0c: // VCLK 1
1113 case 0x0d: // VCLK 2
1114 case 0x0e: // VCLK 3
1115 case 0x0f: // DRAM Control
e6e5ad80
FB		 1116 case 0x12: // Graphics Cursor Attribute
1117 case 0x13: // Graphics Cursor Pattern Address
1118 case 0x14: // Scratch Register 2
1119 case 0x15: // Scratch Register 3
1120 case 0x16: // Performance Tuning Register
1121 case 0x17: // Configuration Readback and Extended Control
1122 case 0x18: // Signature Generator Control
1123 case 0x19: // Signal Generator Result
1124 case 0x1a: // Signal Generator Result
1125 case 0x1b: // VCLK 0 Denominator & Post
1126 case 0x1c: // VCLK 1 Denominator & Post
1127 case 0x1d: // VCLK 2 Denominator & Post
1128 case 0x1e: // VCLK 3 Denominator & Post
1129 case 0x1f: // BIOS Write Enable and MCLK select
1130#ifdef DEBUG_CIRRUS
1131 printf("cirrus: handled inport sr_index %02x\n", reg_index);
1132#endif
1133 *reg_value = s->sr[reg_index];
1134 break;
1135 default:
1136#ifdef DEBUG_CIRRUS
1137 printf("cirrus: inport sr_index %02x\n", reg_index);
1138#endif
1139 *reg_value = 0xff;
1140 break;
1141 }
1142
1143 return CIRRUS_HOOK_HANDLED;
1144}
1145
1146static int
1147cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1148{
1149 switch (reg_index) {
1150 case 0x00: // Standard VGA
1151 case 0x01: // Standard VGA
1152 case 0x02: // Standard VGA
1153 case 0x03: // Standard VGA
1154 case 0x04: // Standard VGA
1155 return CIRRUS_HOOK_NOT_HANDLED;
1156 case 0x06: // Unlock Cirrus extensions
1157 reg_value &= 0x17;
1158 if (reg_value == 0x12) {
1159 s->sr[reg_index] = 0x12;
1160 } else {
1161 s->sr[reg_index] = 0x0f;
1162 }
1163 break;
1164 case 0x10:
1165 case 0x30:
1166 case 0x50:
1167 case 0x70: // Graphics Cursor X
1168 case 0x90:
1169 case 0xb0:
1170 case 0xd0:
1171 case 0xf0: // Graphics Cursor X
1172 s->sr[0x10] = reg_value;
a5082316 1173 s->hw_cursor_x = (reg_value << 3) | (reg_index >> 5);
e6e5ad80
FB		 1174 break;
1175 case 0x11:
1176 case 0x31:
1177 case 0x51:
1178 case 0x71: // Graphics Cursor Y
1179 case 0x91:
1180 case 0xb1:
1181 case 0xd1:
1182 case 0xf1: // Graphics Cursor Y
1183 s->sr[0x11] = reg_value;
a5082316 1184 s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5);
e6e5ad80
FB		 1185 break;
1186 case 0x07: // Extended Sequencer Mode
1187 case 0x08: // EEPROM Control
1188 case 0x09: // Scratch Register 0
1189 case 0x0a: // Scratch Register 1
1190 case 0x0b: // VCLK 0
1191 case 0x0c: // VCLK 1
1192 case 0x0d: // VCLK 2
1193 case 0x0e: // VCLK 3
1194 case 0x0f: // DRAM Control
1195 case 0x12: // Graphics Cursor Attribute
1196 case 0x13: // Graphics Cursor Pattern Address
1197 case 0x14: // Scratch Register 2
1198 case 0x15: // Scratch Register 3
1199 case 0x16: // Performance Tuning Register
e6e5ad80
FB		 1200 case 0x18: // Signature Generator Control
1201 case 0x19: // Signature Generator Result
1202 case 0x1a: // Signature Generator Result
1203 case 0x1b: // VCLK 0 Denominator & Post
1204 case 0x1c: // VCLK 1 Denominator & Post
1205 case 0x1d: // VCLK 2 Denominator & Post
1206 case 0x1e: // VCLK 3 Denominator & Post
1207 case 0x1f: // BIOS Write Enable and MCLK select
1208 s->sr[reg_index] = reg_value;
1209#ifdef DEBUG_CIRRUS
1210 printf("cirrus: handled outport sr_index %02x, sr_value %02x\n",
1211 reg_index, reg_value);
1212#endif
1213 break;
8926b517
FB		 1214 case 0x17: // Configuration Readback and Extended Control
1215 s->sr[reg_index] = reg_value;
1216 cirrus_update_memory_access(s);
1217 break;
e6e5ad80
FB		 1218 default:
1219#ifdef DEBUG_CIRRUS
1220 printf("cirrus: outport sr_index %02x, sr_value %02x\n", reg_index,
1221 reg_value);
1222#endif
1223 break;
1224 }
1225
1226 return CIRRUS_HOOK_HANDLED;
1227}
1228
1229/***************************************
1230 *
1231 * I/O access at 0x3c6
1232 *
1233 ***************************************/
1234
1235static void cirrus_read_hidden_dac(CirrusVGAState * s, int *reg_value)
1236{
1237 *reg_value = 0xff;
a21ae81d
FB		 1238 if (++s->cirrus_hidden_dac_lockindex == 5) {
1239 *reg_value = s->cirrus_hidden_dac_data;
1240 s->cirrus_hidden_dac_lockindex = 0;
e6e5ad80
FB		 1241 }
1242}
1243
1244static void cirrus_write_hidden_dac(CirrusVGAState * s, int reg_value)
1245{
1246 if (s->cirrus_hidden_dac_lockindex == 4) {
1247 s->cirrus_hidden_dac_data = reg_value;
a21ae81d 1248#if defined(DEBUG_CIRRUS)
e6e5ad80
FB		 1249 printf("cirrus: outport hidden DAC, value %02x\n", reg_value);
1250#endif
1251 }
1252 s->cirrus_hidden_dac_lockindex = 0;
1253}
1254
1255/***************************************
1256 *
1257 * I/O access at 0x3c9
1258 *
1259 ***************************************/
1260
1261static int cirrus_hook_read_palette(CirrusVGAState * s, int *reg_value)
1262{
1263 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1264 return CIRRUS_HOOK_NOT_HANDLED;
a5082316
FB		 1265 *reg_value =
1266 s->cirrus_hidden_palette[(s->dac_read_index & 0x0f) * 3 +
1267 s->dac_sub_index];
e6e5ad80
FB		 1268 if (++s->dac_sub_index == 3) {
1269 s->dac_sub_index = 0;
1270 s->dac_read_index++;
1271 }
1272 return CIRRUS_HOOK_HANDLED;
1273}
1274
1275static int cirrus_hook_write_palette(CirrusVGAState * s, int reg_value)
1276{
1277 if (!(s->sr[0x12] & CIRRUS_CURSOR_HIDDENPEL))
1278 return CIRRUS_HOOK_NOT_HANDLED;
1279 s->dac_cache[s->dac_sub_index] = reg_value;
1280 if (++s->dac_sub_index == 3) {
a5082316
FB		 1281 memcpy(&s->cirrus_hidden_palette[(s->dac_write_index & 0x0f) * 3],
1282 s->dac_cache, 3);
1283 /* XXX update cursor */
e6e5ad80
FB		 1284 s->dac_sub_index = 0;
1285 s->dac_write_index++;
1286 }
1287 return CIRRUS_HOOK_HANDLED;
1288}
1289
1290/***************************************
1291 *
1292 * I/O access between 0x3ce-0x3cf
1293 *
1294 ***************************************/
1295
1296static int
1297cirrus_hook_read_gr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1298{
1299 switch (reg_index) {
aeb3c85f
FB		 1300 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
1301 *reg_value = s->cirrus_shadow_gr0;
1302 return CIRRUS_HOOK_HANDLED;
1303 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
1304 *reg_value = s->cirrus_shadow_gr1;
1305 return CIRRUS_HOOK_HANDLED;
e6e5ad80
FB		 1306 case 0x02: // Standard VGA
1307 case 0x03: // Standard VGA
1308 case 0x04: // Standard VGA
1309 case 0x06: // Standard VGA
1310 case 0x07: // Standard VGA
1311 case 0x08: // Standard VGA
1312 return CIRRUS_HOOK_NOT_HANDLED;
1313 case 0x05: // Standard VGA, Cirrus extended mode
1314 default:
1315 break;
1316 }
1317
1318 if (reg_index < 0x3a) {
1319 *reg_value = s->gr[reg_index];
1320 } else {
1321#ifdef DEBUG_CIRRUS
1322 printf("cirrus: inport gr_index %02x\n", reg_index);
1323#endif
1324 *reg_value = 0xff;
1325 }
1326
1327 return CIRRUS_HOOK_HANDLED;
1328}
1329
1330static int
1331cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1332{
a5082316
FB		 1333#if defined(DEBUG_BITBLT) && 0
1334 printf("gr%02x: %02x\n", reg_index, reg_value);
1335#endif
e6e5ad80
FB		 1336 switch (reg_index) {
1337 case 0x00: // Standard VGA, BGCOLOR 0x000000ff
aeb3c85f 1338 s->cirrus_shadow_gr0 = reg_value;
e6e5ad80
FB		 1339 return CIRRUS_HOOK_NOT_HANDLED;
1340 case 0x01: // Standard VGA, FGCOLOR 0x000000ff
aeb3c85f 1341 s->cirrus_shadow_gr1 = reg_value;
e6e5ad80
FB		 1342 return CIRRUS_HOOK_NOT_HANDLED;
1343 case 0x02: // Standard VGA
1344 case 0x03: // Standard VGA
1345 case 0x04: // Standard VGA
1346 case 0x06: // Standard VGA
1347 case 0x07: // Standard VGA
1348 case 0x08: // Standard VGA
1349 return CIRRUS_HOOK_NOT_HANDLED;
1350 case 0x05: // Standard VGA, Cirrus extended mode
1351 s->gr[reg_index] = reg_value & 0x7f;
8926b517 1352 cirrus_update_memory_access(s);
e6e5ad80
FB		 1353 break;
1354 case 0x09: // bank offset #0
1355 case 0x0A: // bank offset #1
8926b517
FB		 1356 s->gr[reg_index] = reg_value;
1357 cirrus_update_bank_ptr(s, 0);
1358 cirrus_update_bank_ptr(s, 1);
1359 break;
e6e5ad80
FB		 1360 case 0x0B:
1361 s->gr[reg_index] = reg_value;
1362 cirrus_update_bank_ptr(s, 0);
1363 cirrus_update_bank_ptr(s, 1);
8926b517 1364 cirrus_update_memory_access(s);
e6e5ad80
FB		 1365 break;
1366 case 0x10: // BGCOLOR 0x0000ff00
1367 case 0x11: // FGCOLOR 0x0000ff00
1368 case 0x12: // BGCOLOR 0x00ff0000
1369 case 0x13: // FGCOLOR 0x00ff0000
1370 case 0x14: // BGCOLOR 0xff000000
1371 case 0x15: // FGCOLOR 0xff000000
1372 case 0x20: // BLT WIDTH 0x0000ff
1373 case 0x22: // BLT HEIGHT 0x0000ff
1374 case 0x24: // BLT DEST PITCH 0x0000ff
1375 case 0x26: // BLT SRC PITCH 0x0000ff
1376 case 0x28: // BLT DEST ADDR 0x0000ff
1377 case 0x29: // BLT DEST ADDR 0x00ff00
1378 case 0x2c: // BLT SRC ADDR 0x0000ff
1379 case 0x2d: // BLT SRC ADDR 0x00ff00
a5082316 1380 case 0x2f: // BLT WRITEMASK
e6e5ad80
FB		 1381 case 0x30: // BLT MODE
1382 case 0x32: // RASTER OP
a21ae81d 1383 case 0x33: // BLT MODEEXT
e6e5ad80
FB		 1384 case 0x34: // BLT TRANSPARENT COLOR 0x00ff
1385 case 0x35: // BLT TRANSPARENT COLOR 0xff00
1386 case 0x38: // BLT TRANSPARENT COLOR MASK 0x00ff
1387 case 0x39: // BLT TRANSPARENT COLOR MASK 0xff00
1388 s->gr[reg_index] = reg_value;
1389 break;
1390 case 0x21: // BLT WIDTH 0x001f00
1391 case 0x23: // BLT HEIGHT 0x001f00
1392 case 0x25: // BLT DEST PITCH 0x001f00
1393 case 0x27: // BLT SRC PITCH 0x001f00
1394 s->gr[reg_index] = reg_value & 0x1f;
1395 break;
1396 case 0x2a: // BLT DEST ADDR 0x3f0000
a5082316
FB		 1397 s->gr[reg_index] = reg_value & 0x3f;
1398 /* if auto start mode, starts bit blt now */
1399 if (s->gr[0x31] & CIRRUS_BLT_AUTOSTART) {
1400 cirrus_bitblt_start(s);
1401 }
1402 break;
e6e5ad80
FB		 1403 case 0x2e: // BLT SRC ADDR 0x3f0000
1404 s->gr[reg_index] = reg_value & 0x3f;
1405 break;
1406 case 0x31: // BLT STATUS/START
1407 cirrus_write_bitblt(s, reg_value);
1408 break;
1409 default:
1410#ifdef DEBUG_CIRRUS
1411 printf("cirrus: outport gr_index %02x, gr_value %02x\n", reg_index,
1412 reg_value);
1413#endif
1414 break;
1415 }
1416
1417 return CIRRUS_HOOK_HANDLED;
1418}
1419
1420/***************************************
1421 *
1422 * I/O access between 0x3d4-0x3d5
1423 *
1424 ***************************************/
1425
1426static int
1427cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value)
1428{
1429 switch (reg_index) {
1430 case 0x00: // Standard VGA
1431 case 0x01: // Standard VGA
1432 case 0x02: // Standard VGA
1433 case 0x03: // Standard VGA
1434 case 0x04: // Standard VGA
1435 case 0x05: // Standard VGA
1436 case 0x06: // Standard VGA
1437 case 0x07: // Standard VGA
1438 case 0x08: // Standard VGA
1439 case 0x09: // Standard VGA
1440 case 0x0a: // Standard VGA
1441 case 0x0b: // Standard VGA
1442 case 0x0c: // Standard VGA
1443 case 0x0d: // Standard VGA
1444 case 0x0e: // Standard VGA
1445 case 0x0f: // Standard VGA
1446 case 0x10: // Standard VGA
1447 case 0x11: // Standard VGA
1448 case 0x12: // Standard VGA
1449 case 0x13: // Standard VGA
1450 case 0x14: // Standard VGA
1451 case 0x15: // Standard VGA
1452 case 0x16: // Standard VGA
1453 case 0x17: // Standard VGA
1454 case 0x18: // Standard VGA
1455 return CIRRUS_HOOK_NOT_HANDLED;
1456 case 0x19: // Interlace End
1457 case 0x1a: // Miscellaneous Control
1458 case 0x1b: // Extended Display Control
1459 case 0x1c: // Sync Adjust and Genlock
1460 case 0x1d: // Overlay Extended Control
1461 case 0x22: // Graphics Data Latches Readback (R)
1462 case 0x24: // Attribute Controller Toggle Readback (R)
1463 case 0x25: // Part Status
1464 case 0x27: // Part ID (R)
1465 *reg_value = s->cr[reg_index];
1466 break;
1467 case 0x26: // Attribute Controller Index Readback (R)
1468 *reg_value = s->ar_index & 0x3f;
1469 break;
1470 default:
1471#ifdef DEBUG_CIRRUS
1472 printf("cirrus: inport cr_index %02x\n", reg_index);
1473 *reg_value = 0xff;
1474#endif
1475 break;
1476 }
1477
1478 return CIRRUS_HOOK_HANDLED;
1479}
1480
1481static int
1482cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
1483{
1484 switch (reg_index) {
1485 case 0x00: // Standard VGA
1486 case 0x01: // Standard VGA
1487 case 0x02: // Standard VGA
1488 case 0x03: // Standard VGA
1489 case 0x04: // Standard VGA
1490 case 0x05: // Standard VGA
1491 case 0x06: // Standard VGA
1492 case 0x07: // Standard VGA
1493 case 0x08: // Standard VGA
1494 case 0x09: // Standard VGA
1495 case 0x0a: // Standard VGA
1496 case 0x0b: // Standard VGA
1497 case 0x0c: // Standard VGA
1498 case 0x0d: // Standard VGA
1499 case 0x0e: // Standard VGA
1500 case 0x0f: // Standard VGA
1501 case 0x10: // Standard VGA
1502 case 0x11: // Standard VGA
1503 case 0x12: // Standard VGA
1504 case 0x13: // Standard VGA
1505 case 0x14: // Standard VGA
1506 case 0x15: // Standard VGA
1507 case 0x16: // Standard VGA
1508 case 0x17: // Standard VGA
1509 case 0x18: // Standard VGA
1510 return CIRRUS_HOOK_NOT_HANDLED;
1511 case 0x19: // Interlace End
1512 case 0x1a: // Miscellaneous Control
1513 case 0x1b: // Extended Display Control
1514 case 0x1c: // Sync Adjust and Genlock
ae184e4a 1515 case 0x1d: // Overlay Extended Control
e6e5ad80
FB		 1516 s->cr[reg_index] = reg_value;
1517#ifdef DEBUG_CIRRUS
1518 printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
1519 reg_index, reg_value);
1520#endif
1521 break;
1522 case 0x22: // Graphics Data Latches Readback (R)
1523 case 0x24: // Attribute Controller Toggle Readback (R)
1524 case 0x26: // Attribute Controller Index Readback (R)
1525 case 0x27: // Part ID (R)
1526 break;
e6e5ad80
FB		 1527 case 0x25: // Part Status
1528 default:
1529#ifdef DEBUG_CIRRUS
1530 printf("cirrus: outport cr_index %02x, cr_value %02x\n", reg_index,
1531 reg_value);
1532#endif
1533 break;
1534 }
1535
1536 return CIRRUS_HOOK_HANDLED;
1537}
1538
1539/***************************************
1540 *
1541 * memory-mapped I/O (bitblt)
1542 *
1543 ***************************************/
1544
1545static uint8_t cirrus_mmio_blt_read(CirrusVGAState * s, unsigned address)
1546{
1547 int value = 0xff;
1548
1549 switch (address) {
1550 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1551 cirrus_hook_read_gr(s, 0x00, &value);
1552 break;
1553 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1554 cirrus_hook_read_gr(s, 0x10, &value);
1555 break;
1556 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1557 cirrus_hook_read_gr(s, 0x12, &value);
1558 break;
1559 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1560 cirrus_hook_read_gr(s, 0x14, &value);
1561 break;
1562 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1563 cirrus_hook_read_gr(s, 0x01, &value);
1564 break;
1565 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1566 cirrus_hook_read_gr(s, 0x11, &value);
1567 break;
1568 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1569 cirrus_hook_read_gr(s, 0x13, &value);
1570 break;
1571 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1572 cirrus_hook_read_gr(s, 0x15, &value);
1573 break;
1574 case (CIRRUS_MMIO_BLTWIDTH + 0):
1575 cirrus_hook_read_gr(s, 0x20, &value);
1576 break;
1577 case (CIRRUS_MMIO_BLTWIDTH + 1):
1578 cirrus_hook_read_gr(s, 0x21, &value);
1579 break;
1580 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1581 cirrus_hook_read_gr(s, 0x22, &value);
1582 break;
1583 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1584 cirrus_hook_read_gr(s, 0x23, &value);
1585 break;
1586 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1587 cirrus_hook_read_gr(s, 0x24, &value);
1588 break;
1589 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1590 cirrus_hook_read_gr(s, 0x25, &value);
1591 break;
1592 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1593 cirrus_hook_read_gr(s, 0x26, &value);
1594 break;
1595 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1596 cirrus_hook_read_gr(s, 0x27, &value);
1597 break;
1598 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1599 cirrus_hook_read_gr(s, 0x28, &value);
1600 break;
1601 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1602 cirrus_hook_read_gr(s, 0x29, &value);
1603 break;
1604 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1605 cirrus_hook_read_gr(s, 0x2a, &value);
1606 break;
1607 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1608 cirrus_hook_read_gr(s, 0x2c, &value);
1609 break;
1610 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1611 cirrus_hook_read_gr(s, 0x2d, &value);
1612 break;
1613 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1614 cirrus_hook_read_gr(s, 0x2e, &value);
1615 break;
1616 case CIRRUS_MMIO_BLTWRITEMASK:
1617 cirrus_hook_read_gr(s, 0x2f, &value);
1618 break;
1619 case CIRRUS_MMIO_BLTMODE:
1620 cirrus_hook_read_gr(s, 0x30, &value);
1621 break;
1622 case CIRRUS_MMIO_BLTROP:
1623 cirrus_hook_read_gr(s, 0x32, &value);
1624 break;
a21ae81d
FB		 1625 case CIRRUS_MMIO_BLTMODEEXT:
1626 cirrus_hook_read_gr(s, 0x33, &value);
1627 break;
e6e5ad80
FB		 1628 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1629 cirrus_hook_read_gr(s, 0x34, &value);
1630 break;
1631 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1632 cirrus_hook_read_gr(s, 0x35, &value);
1633 break;
1634 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1635 cirrus_hook_read_gr(s, 0x38, &value);
1636 break;
1637 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1638 cirrus_hook_read_gr(s, 0x39, &value);
1639 break;
1640 case CIRRUS_MMIO_BLTSTATUS:
1641 cirrus_hook_read_gr(s, 0x31, &value);
1642 break;
1643 default:
1644#ifdef DEBUG_CIRRUS
1645 printf("cirrus: mmio read - address 0x%04x\n", address);
1646#endif
1647 break;
1648 }
1649
1650 return (uint8_t) value;
1651}
1652
1653static void cirrus_mmio_blt_write(CirrusVGAState * s, unsigned address,
1654 uint8_t value)
1655{
1656 switch (address) {
1657 case (CIRRUS_MMIO_BLTBGCOLOR + 0):
1658 cirrus_hook_write_gr(s, 0x00, value);
1659 break;
1660 case (CIRRUS_MMIO_BLTBGCOLOR + 1):
1661 cirrus_hook_write_gr(s, 0x10, value);
1662 break;
1663 case (CIRRUS_MMIO_BLTBGCOLOR + 2):
1664 cirrus_hook_write_gr(s, 0x12, value);
1665 break;
1666 case (CIRRUS_MMIO_BLTBGCOLOR + 3):
1667 cirrus_hook_write_gr(s, 0x14, value);
1668 break;
1669 case (CIRRUS_MMIO_BLTFGCOLOR + 0):
1670 cirrus_hook_write_gr(s, 0x01, value);
1671 break;
1672 case (CIRRUS_MMIO_BLTFGCOLOR + 1):
1673 cirrus_hook_write_gr(s, 0x11, value);
1674 break;
1675 case (CIRRUS_MMIO_BLTFGCOLOR + 2):
1676 cirrus_hook_write_gr(s, 0x13, value);
1677 break;
1678 case (CIRRUS_MMIO_BLTFGCOLOR + 3):
1679 cirrus_hook_write_gr(s, 0x15, value);
1680 break;
1681 case (CIRRUS_MMIO_BLTWIDTH + 0):
1682 cirrus_hook_write_gr(s, 0x20, value);
1683 break;
1684 case (CIRRUS_MMIO_BLTWIDTH + 1):
1685 cirrus_hook_write_gr(s, 0x21, value);
1686 break;
1687 case (CIRRUS_MMIO_BLTHEIGHT + 0):
1688 cirrus_hook_write_gr(s, 0x22, value);
1689 break;
1690 case (CIRRUS_MMIO_BLTHEIGHT + 1):
1691 cirrus_hook_write_gr(s, 0x23, value);
1692 break;
1693 case (CIRRUS_MMIO_BLTDESTPITCH + 0):
1694 cirrus_hook_write_gr(s, 0x24, value);
1695 break;
1696 case (CIRRUS_MMIO_BLTDESTPITCH + 1):
1697 cirrus_hook_write_gr(s, 0x25, value);
1698 break;
1699 case (CIRRUS_MMIO_BLTSRCPITCH + 0):
1700 cirrus_hook_write_gr(s, 0x26, value);
1701 break;
1702 case (CIRRUS_MMIO_BLTSRCPITCH + 1):
1703 cirrus_hook_write_gr(s, 0x27, value);
1704 break;
1705 case (CIRRUS_MMIO_BLTDESTADDR + 0):
1706 cirrus_hook_write_gr(s, 0x28, value);
1707 break;
1708 case (CIRRUS_MMIO_BLTDESTADDR + 1):
1709 cirrus_hook_write_gr(s, 0x29, value);
1710 break;
1711 case (CIRRUS_MMIO_BLTDESTADDR + 2):
1712 cirrus_hook_write_gr(s, 0x2a, value);
1713 break;
1714 case (CIRRUS_MMIO_BLTDESTADDR + 3):
1715 /* ignored */
1716 break;
1717 case (CIRRUS_MMIO_BLTSRCADDR + 0):
1718 cirrus_hook_write_gr(s, 0x2c, value);
1719 break;
1720 case (CIRRUS_MMIO_BLTSRCADDR + 1):
1721 cirrus_hook_write_gr(s, 0x2d, value);
1722 break;
1723 case (CIRRUS_MMIO_BLTSRCADDR + 2):
1724 cirrus_hook_write_gr(s, 0x2e, value);
1725 break;
1726 case CIRRUS_MMIO_BLTWRITEMASK:
1727 cirrus_hook_write_gr(s, 0x2f, value);
1728 break;
1729 case CIRRUS_MMIO_BLTMODE:
1730 cirrus_hook_write_gr(s, 0x30, value);
1731 break;
1732 case CIRRUS_MMIO_BLTROP:
1733 cirrus_hook_write_gr(s, 0x32, value);
1734 break;
a21ae81d
FB		 1735 case CIRRUS_MMIO_BLTMODEEXT:
1736 cirrus_hook_write_gr(s, 0x33, value);
1737 break;
e6e5ad80
FB		 1738 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 0):
1739 cirrus_hook_write_gr(s, 0x34, value);
1740 break;
1741 case (CIRRUS_MMIO_BLTTRANSPARENTCOLOR + 1):
1742 cirrus_hook_write_gr(s, 0x35, value);
1743 break;
1744 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 0):
1745 cirrus_hook_write_gr(s, 0x38, value);
1746 break;
1747 case (CIRRUS_MMIO_BLTTRANSPARENTCOLORMASK + 1):
1748 cirrus_hook_write_gr(s, 0x39, value);
1749 break;
1750 case CIRRUS_MMIO_BLTSTATUS:
1751 cirrus_hook_write_gr(s, 0x31, value);
1752 break;
1753 default:
1754#ifdef DEBUG_CIRRUS
1755 printf("cirrus: mmio write - addr 0x%04x val 0x%02x (ignored)\n",
1756 address, value);
1757#endif
1758 break;
1759 }
1760}
1761
e6e5ad80
FB		 1762/***************************************
1763 *
1764 * write mode 4/5
1765 *
1766 * assume TARGET_PAGE_SIZE >= 16
1767 *
1768 ***************************************/
1769
1770static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
1771 unsigned mode,
1772 unsigned offset,
1773 uint32_t mem_value)
1774{
1775 int x;
1776 unsigned val = mem_value;
1777 uint8_t *dst;
1778
1779 dst = s->vram_ptr + offset;
1780 for (x = 0; x < 8; x++) {
1781 if (val & 0x80) {
aeb3c85f 1782 *dst++ = s->cirrus_shadow_gr1;
e6e5ad80 1783 } else if (mode == 5) {
aeb3c85f 1784 *dst++ = s->cirrus_shadow_gr0;
e6e5ad80
FB		 1785 }
1786 val <<= 1;
1787 }
1788 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1789 cpu_physical_memory_set_dirty(s->vram_offset + offset + 7);
1790}
1791
1792static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
1793 unsigned mode,
1794 unsigned offset,
1795 uint32_t mem_value)
1796{
1797 int x;
1798 unsigned val = mem_value;
1799 uint8_t *dst;
1800
1801 dst = s->vram_ptr + offset;
1802 for (x = 0; x < 8; x++) {
1803 if (val & 0x80) {
aeb3c85f 1804 *dst++ = s->cirrus_shadow_gr1;
e6e5ad80
FB		 1805 *dst++ = s->gr[0x11];
1806 } else if (mode == 5) {
aeb3c85f 1807 *dst++ = s->cirrus_shadow_gr0;
e6e5ad80
FB		 1808 *dst++ = s->gr[0x10];
1809 }
1810 val <<= 1;
1811 }
1812 cpu_physical_memory_set_dirty(s->vram_offset + offset);
1813 cpu_physical_memory_set_dirty(s->vram_offset + offset + 15);
1814}
1815
1816/***************************************
1817 *
1818 * memory access between 0xa0000-0xbffff
1819 *
1820 ***************************************/
1821
1822static uint32_t cirrus_vga_mem_readb(void *opaque, target_phys_addr_t addr)
1823{
1824 CirrusVGAState *s = opaque;
1825 unsigned bank_index;
1826 unsigned bank_offset;
1827 uint32_t val;
1828
1829 if ((s->sr[0x07] & 0x01) == 0) {
1830 return vga_mem_readb(s, addr);
1831 }
1832
aeb3c85f
FB		 1833 addr &= 0x1ffff;
1834
e6e5ad80
FB		 1835 if (addr < 0x10000) {
1836 /* XXX handle bitblt */
1837 /* video memory */
1838 bank_index = addr >> 15;
1839 bank_offset = addr & 0x7fff;
1840 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1841 bank_offset += s->cirrus_bank_base[bank_index];
1842 if ((s->gr[0x0B] & 0x14) == 0x14) {
1843 bank_offset <<= 4;
1844 } else if (s->gr[0x0B] & 0x02) {
1845 bank_offset <<= 3;
1846 }
1847 bank_offset &= s->cirrus_addr_mask;
1848 val = *(s->vram_ptr + bank_offset);
1849 } else
1850 val = 0xff;
1851 } else if (addr >= 0x18000 && addr < 0x18100) {
1852 /* memory-mapped I/O */
1853 val = 0xff;
1854 if ((s->sr[0x17] & 0x44) == 0x04) {
1855 val = cirrus_mmio_blt_read(s, addr & 0xff);
1856 }
1857 } else {
1858 val = 0xff;
1859#ifdef DEBUG_CIRRUS
1860 printf("cirrus: mem_readb %06x\n", addr);
1861#endif
1862 }
1863 return val;
1864}
1865
1866static uint32_t cirrus_vga_mem_readw(void *opaque, target_phys_addr_t addr)
1867{
1868 uint32_t v;
1869#ifdef TARGET_WORDS_BIGENDIAN
1870 v = cirrus_vga_mem_readb(opaque, addr) << 8;
1871 v |= cirrus_vga_mem_readb(opaque, addr + 1);
1872#else
1873 v = cirrus_vga_mem_readb(opaque, addr);
1874 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
1875#endif
1876 return v;
1877}
1878
1879static uint32_t cirrus_vga_mem_readl(void *opaque, target_phys_addr_t addr)
1880{
1881 uint32_t v;
1882#ifdef TARGET_WORDS_BIGENDIAN
1883 v = cirrus_vga_mem_readb(opaque, addr) << 24;
1884 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 16;
1885 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 8;
1886 v |= cirrus_vga_mem_readb(opaque, addr + 3);
1887#else
1888 v = cirrus_vga_mem_readb(opaque, addr);
1889 v |= cirrus_vga_mem_readb(opaque, addr + 1) << 8;
1890 v |= cirrus_vga_mem_readb(opaque, addr + 2) << 16;
1891 v |= cirrus_vga_mem_readb(opaque, addr + 3) << 24;
1892#endif
1893 return v;
1894}
1895
1896static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
1897 uint32_t mem_value)
1898{
1899 CirrusVGAState *s = opaque;
1900 unsigned bank_index;
1901 unsigned bank_offset;
1902 unsigned mode;
1903
1904 if ((s->sr[0x07] & 0x01) == 0) {
1905 vga_mem_writeb(s, addr, mem_value);
1906 return;
1907 }
1908
aeb3c85f
FB		 1909 addr &= 0x1ffff;
1910
e6e5ad80
FB		 1911 if (addr < 0x10000) {
1912 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
1913 /* bitblt */
1914 *s->cirrus_srcptr++ = (uint8_t) mem_value;
a5082316 1915 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 1916 cirrus_bitblt_cputovideo_next(s);
1917 }
1918 } else {
1919 /* video memory */
1920 bank_index = addr >> 15;
1921 bank_offset = addr & 0x7fff;
1922 if (bank_offset < s->cirrus_bank_limit[bank_index]) {
1923 bank_offset += s->cirrus_bank_base[bank_index];
1924 if ((s->gr[0x0B] & 0x14) == 0x14) {
1925 bank_offset <<= 4;
1926 } else if (s->gr[0x0B] & 0x02) {
1927 bank_offset <<= 3;
1928 }
1929 bank_offset &= s->cirrus_addr_mask;
1930 mode = s->gr[0x05] & 0x7;
1931 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
1932 *(s->vram_ptr + bank_offset) = mem_value;
1933 cpu_physical_memory_set_dirty(s->vram_offset +
1934 bank_offset);
1935 } else {
1936 if ((s->gr[0x0B] & 0x14) != 0x14) {
1937 cirrus_mem_writeb_mode4and5_8bpp(s, mode,
1938 bank_offset,
1939 mem_value);
1940 } else {
1941 cirrus_mem_writeb_mode4and5_16bpp(s, mode,
1942 bank_offset,
1943 mem_value);
1944 }
1945 }
1946 }
1947 }
1948 } else if (addr >= 0x18000 && addr < 0x18100) {
1949 /* memory-mapped I/O */
1950 if ((s->sr[0x17] & 0x44) == 0x04) {
1951 cirrus_mmio_blt_write(s, addr & 0xff, mem_value);
1952 }
1953 } else {
1954#ifdef DEBUG_CIRRUS
1955 printf("cirrus: mem_writeb %06x value %02x\n", addr, mem_value);
1956#endif
1957 }
1958}
1959
1960static void cirrus_vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
1961{
1962#ifdef TARGET_WORDS_BIGENDIAN
1963 cirrus_vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);
1964 cirrus_vga_mem_writeb(opaque, addr + 1, val & 0xff);
1965#else
1966 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
1967 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
1968#endif
1969}
1970
1971static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
1972{
1973#ifdef TARGET_WORDS_BIGENDIAN
1974 cirrus_vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);
1975 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);
1976 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);
1977 cirrus_vga_mem_writeb(opaque, addr + 3, val & 0xff);
1978#else
1979 cirrus_vga_mem_writeb(opaque, addr, val & 0xff);
1980 cirrus_vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);
1981 cirrus_vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);
1982 cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
1983#endif
1984}
1985
1986static CPUReadMemoryFunc *cirrus_vga_mem_read[3] = {
1987 cirrus_vga_mem_readb,
1988 cirrus_vga_mem_readw,
1989 cirrus_vga_mem_readl,
1990};
1991
1992static CPUWriteMemoryFunc *cirrus_vga_mem_write[3] = {
1993 cirrus_vga_mem_writeb,
1994 cirrus_vga_mem_writew,
1995 cirrus_vga_mem_writel,
1996};
1997
a5082316
FB		 1998/***************************************
1999 *
2000 * hardware cursor
2001 *
2002 ***************************************/
2003
2004static inline void invalidate_cursor1(CirrusVGAState *s)
2005{
2006 if (s->last_hw_cursor_size) {
2007 vga_invalidate_scanlines((VGAState *)s,
2008 s->last_hw_cursor_y + s->last_hw_cursor_y_start,
2009 s->last_hw_cursor_y + s->last_hw_cursor_y_end);
2010 }
2011}
2012
2013static inline void cirrus_cursor_compute_yrange(CirrusVGAState *s)
2014{
2015 const uint8_t *src;
2016 uint32_t content;
2017 int y, y_min, y_max;
2018
78e127ef 2019 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
a5082316
FB		 2020 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2021 src += (s->sr[0x13] & 0x3c) * 256;
2022 y_min = 64;
2023 y_max = -1;
2024 for(y = 0; y < 64; y++) {
2025 content = ((uint32_t *)src)[0] |
2026 ((uint32_t *)src)[1] |
2027 ((uint32_t *)src)[2] |
2028 ((uint32_t *)src)[3];
2029 if (content) {
2030 if (y < y_min)
2031 y_min = y;
2032 if (y > y_max)
2033 y_max = y;
2034 }
2035 src += 16;
2036 }
2037 } else {
2038 src += (s->sr[0x13] & 0x3f) * 256;
2039 y_min = 32;
2040 y_max = -1;
2041 for(y = 0; y < 32; y++) {
2042 content = ((uint32_t *)src)[0] |
2043 ((uint32_t *)(src + 128))[0];
2044 if (content) {
2045 if (y < y_min)
2046 y_min = y;
2047 if (y > y_max)
2048 y_max = y;
2049 }
2050 src += 4;
2051 }
2052 }
2053 if (y_min > y_max) {
2054 s->last_hw_cursor_y_start = 0;
2055 s->last_hw_cursor_y_end = 0;
2056 } else {
2057 s->last_hw_cursor_y_start = y_min;
2058 s->last_hw_cursor_y_end = y_max + 1;
2059 }
2060}
2061
2062/* NOTE: we do not currently handle the cursor bitmap change, so we
2063 update the cursor only if it moves. */
2064static void cirrus_cursor_invalidate(VGAState *s1)
2065{
2066 CirrusVGAState *s = (CirrusVGAState *)s1;
2067 int size;
2068
2069 if (!s->sr[0x12] & CIRRUS_CURSOR_SHOW) {
2070 size = 0;
2071 } else {
2072 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE)
2073 size = 64;
2074 else
2075 size = 32;
2076 }
2077 /* invalidate last cursor and new cursor if any change */
2078 if (s->last_hw_cursor_size != size ||
2079 s->last_hw_cursor_x != s->hw_cursor_x ||
2080 s->last_hw_cursor_y != s->hw_cursor_y) {
2081
2082 invalidate_cursor1(s);
2083
2084 s->last_hw_cursor_size = size;
2085 s->last_hw_cursor_x = s->hw_cursor_x;
2086 s->last_hw_cursor_y = s->hw_cursor_y;
2087 /* compute the real cursor min and max y */
2088 cirrus_cursor_compute_yrange(s);
2089 invalidate_cursor1(s);
2090 }
2091}
2092
2093static void cirrus_cursor_draw_line(VGAState *s1, uint8_t *d1, int scr_y)
2094{
2095 CirrusVGAState *s = (CirrusVGAState *)s1;
2096 int w, h, bpp, x1, x2, poffset;
2097 unsigned int color0, color1;
2098 const uint8_t *palette, *src;
2099 uint32_t content;
2100
2101 if (!(s->sr[0x12] & CIRRUS_CURSOR_SHOW))
2102 return;
2103 /* fast test to see if the cursor intersects with the scan line */
2104 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2105 h = 64;
2106 } else {
2107 h = 32;
2108 }
2109 if (scr_y < s->hw_cursor_y ||
2110 scr_y >= (s->hw_cursor_y + h))
2111 return;
2112
78e127ef 2113 src = s->vram_ptr + s->real_vram_size - 16 * 1024;
a5082316
FB		 2114 if (s->sr[0x12] & CIRRUS_CURSOR_LARGE) {
2115 src += (s->sr[0x13] & 0x3c) * 256;
2116 src += (scr_y - s->hw_cursor_y) * 16;
2117 poffset = 8;
2118 content = ((uint32_t *)src)[0] |
2119 ((uint32_t *)src)[1] |
2120 ((uint32_t *)src)[2] |
2121 ((uint32_t *)src)[3];
2122 } else {
2123 src += (s->sr[0x13] & 0x3f) * 256;
2124 src += (scr_y - s->hw_cursor_y) * 4;
2125 poffset = 128;
2126 content = ((uint32_t *)src)[0] |
2127 ((uint32_t *)(src + 128))[0];
2128 }
2129 /* if nothing to draw, no need to continue */
2130 if (!content)
2131 return;
2132 w = h;
2133
2134 x1 = s->hw_cursor_x;
2135 if (x1 >= s->last_scr_width)
2136 return;
2137 x2 = s->hw_cursor_x + w;
2138 if (x2 > s->last_scr_width)
2139 x2 = s->last_scr_width;
2140 w = x2 - x1;
2141 palette = s->cirrus_hidden_palette;
2142 color0 = s->rgb_to_pixel(c6_to_8(palette[0x0 * 3]),
2143 c6_to_8(palette[0x0 * 3 + 1]),
2144 c6_to_8(palette[0x0 * 3 + 2]));
2145 color1 = s->rgb_to_pixel(c6_to_8(palette[0xf * 3]),
2146 c6_to_8(palette[0xf * 3 + 1]),
2147 c6_to_8(palette[0xf * 3 + 2]));
2148 bpp = ((s->ds->depth + 7) >> 3);
2149 d1 += x1 * bpp;
2150 switch(s->ds->depth) {
2151 default:
2152 break;
2153 case 8:
2154 vga_draw_cursor_line_8(d1, src, poffset, w, color0, color1, 0xff);
2155 break;
2156 case 15:
2157 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0x7fff);
2158 break;
2159 case 16:
2160 vga_draw_cursor_line_16(d1, src, poffset, w, color0, color1, 0xffff);
2161 break;
2162 case 32:
2163 vga_draw_cursor_line_32(d1, src, poffset, w, color0, color1, 0xffffff);
2164 break;
2165 }
2166}
2167
e6e5ad80
FB		 2168/***************************************
2169 *
2170 * LFB memory access
2171 *
2172 ***************************************/
2173
2174static uint32_t cirrus_linear_readb(void *opaque, target_phys_addr_t addr)
2175{
2176 CirrusVGAState *s = (CirrusVGAState *) opaque;
2177 uint32_t ret;
2178
e6e5ad80
FB		 2179 addr &= s->cirrus_addr_mask;
2180
78e127ef
FB		 2181 if (((s->sr[0x17] & 0x44) == 0x44) &&
2182 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2183 /* memory-mapped I/O */
2184 ret = cirrus_mmio_blt_read(s, addr & 0xff);
2185 } else if (0) {
2186 /* XXX handle bitblt */
2187 ret = 0xff;
2188 } else {
2189 /* video memory */
2190 if ((s->gr[0x0B] & 0x14) == 0x14) {
2191 addr <<= 4;
2192 } else if (s->gr[0x0B] & 0x02) {
2193 addr <<= 3;
2194 }
2195 addr &= s->cirrus_addr_mask;
2196 ret = *(s->vram_ptr + addr);
2197 }
2198
2199 return ret;
2200}
2201
2202static uint32_t cirrus_linear_readw(void *opaque, target_phys_addr_t addr)
2203{
2204 uint32_t v;
2205#ifdef TARGET_WORDS_BIGENDIAN
2206 v = cirrus_linear_readb(opaque, addr) << 8;
2207 v |= cirrus_linear_readb(opaque, addr + 1);
2208#else
2209 v = cirrus_linear_readb(opaque, addr);
2210 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2211#endif
2212 return v;
2213}
2214
2215static uint32_t cirrus_linear_readl(void *opaque, target_phys_addr_t addr)
2216{
2217 uint32_t v;
2218#ifdef TARGET_WORDS_BIGENDIAN
2219 v = cirrus_linear_readb(opaque, addr) << 24;
2220 v |= cirrus_linear_readb(opaque, addr + 1) << 16;
2221 v |= cirrus_linear_readb(opaque, addr + 2) << 8;
2222 v |= cirrus_linear_readb(opaque, addr + 3);
2223#else
2224 v = cirrus_linear_readb(opaque, addr);
2225 v |= cirrus_linear_readb(opaque, addr + 1) << 8;
2226 v |= cirrus_linear_readb(opaque, addr + 2) << 16;
2227 v |= cirrus_linear_readb(opaque, addr + 3) << 24;
2228#endif
2229 return v;
2230}
2231
2232static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
2233 uint32_t val)
2234{
2235 CirrusVGAState *s = (CirrusVGAState *) opaque;
2236 unsigned mode;
2237
2238 addr &= s->cirrus_addr_mask;
78e127ef
FB		 2239
2240 if (((s->sr[0x17] & 0x44) == 0x44) &&
2241 ((addr & s->linear_mmio_mask) == s->linear_mmio_mask)) {
e6e5ad80
FB		 2242 /* memory-mapped I/O */
2243 cirrus_mmio_blt_write(s, addr & 0xff, val);
2244 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2245 /* bitblt */
2246 *s->cirrus_srcptr++ = (uint8_t) val;
a5082316 2247 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
e6e5ad80
FB		 2248 cirrus_bitblt_cputovideo_next(s);
2249 }
2250 } else {
2251 /* video memory */
2252 if ((s->gr[0x0B] & 0x14) == 0x14) {
2253 addr <<= 4;
2254 } else if (s->gr[0x0B] & 0x02) {
2255 addr <<= 3;
2256 }
2257 addr &= s->cirrus_addr_mask;
2258
2259 mode = s->gr[0x05] & 0x7;
2260 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2261 *(s->vram_ptr + addr) = (uint8_t) val;
2262 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2263 } else {
2264 if ((s->gr[0x0B] & 0x14) != 0x14) {
2265 cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
2266 } else {
2267 cirrus_mem_writeb_mode4and5_16bpp(s, mode, addr, val);
2268 }
2269 }
2270 }
2271}
2272
2273static void cirrus_linear_writew(void *opaque, target_phys_addr_t addr,
2274 uint32_t val)
2275{
2276#ifdef TARGET_WORDS_BIGENDIAN
2277 cirrus_linear_writeb(opaque, addr, (val >> 8) & 0xff);
2278 cirrus_linear_writeb(opaque, addr + 1, val & 0xff);
2279#else
2280 cirrus_linear_writeb(opaque, addr, val & 0xff);
2281 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2282#endif
2283}
2284
2285static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
2286 uint32_t val)
2287{
2288#ifdef TARGET_WORDS_BIGENDIAN
2289 cirrus_linear_writeb(opaque, addr, (val >> 24) & 0xff);
2290 cirrus_linear_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2291 cirrus_linear_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2292 cirrus_linear_writeb(opaque, addr + 3, val & 0xff);
2293#else
2294 cirrus_linear_writeb(opaque, addr, val & 0xff);
2295 cirrus_linear_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2296 cirrus_linear_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2297 cirrus_linear_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2298#endif
2299}
2300
2301
2302static CPUReadMemoryFunc *cirrus_linear_read[3] = {
2303 cirrus_linear_readb,
2304 cirrus_linear_readw,
2305 cirrus_linear_readl,
2306};
2307
2308static CPUWriteMemoryFunc *cirrus_linear_write[3] = {
2309 cirrus_linear_writeb,
2310 cirrus_linear_writew,
2311 cirrus_linear_writel,
2312};
2313
8926b517
FB		 2314static void cirrus_linear_mem_writeb(void *opaque, target_phys_addr_t addr,
2315 uint32_t val)
2316{
2317 CirrusVGAState *s = (CirrusVGAState *) opaque;
2318
2319 addr &= s->cirrus_addr_mask;
2320 *(s->vram_ptr + addr) = val;
2321 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2322}
2323
2324static void cirrus_linear_mem_writew(void *opaque, target_phys_addr_t addr,
2325 uint32_t val)
2326{
2327 CirrusVGAState *s = (CirrusVGAState *) opaque;
2328
2329 addr &= s->cirrus_addr_mask;
2330 cpu_to_le16w((uint16_t *)(s->vram_ptr + addr), val);
2331 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2332}
2333
2334static void cirrus_linear_mem_writel(void *opaque, target_phys_addr_t addr,
2335 uint32_t val)
2336{
2337 CirrusVGAState *s = (CirrusVGAState *) opaque;
2338
2339 addr &= s->cirrus_addr_mask;
2340 cpu_to_le32w((uint32_t *)(s->vram_ptr + addr), val);
2341 cpu_physical_memory_set_dirty(s->vram_offset + addr);
2342}
2343
a5082316
FB		 2344/***************************************
2345 *
2346 * system to screen memory access
2347 *
2348 ***************************************/
2349
2350
2351static uint32_t cirrus_linear_bitblt_readb(void *opaque, target_phys_addr_t addr)
2352{
2353 uint32_t ret;
2354
2355 /* XXX handle bitblt */
2356 ret = 0xff;
2357 return ret;
2358}
2359
2360static uint32_t cirrus_linear_bitblt_readw(void *opaque, target_phys_addr_t addr)
2361{
2362 uint32_t v;
2363#ifdef TARGET_WORDS_BIGENDIAN
2364 v = cirrus_linear_bitblt_readb(opaque, addr) << 8;
2365 v |= cirrus_linear_bitblt_readb(opaque, addr + 1);
2366#else
2367 v = cirrus_linear_bitblt_readb(opaque, addr);
2368 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2369#endif
2370 return v;
2371}
2372
2373static uint32_t cirrus_linear_bitblt_readl(void *opaque, target_phys_addr_t addr)
2374{
2375 uint32_t v;
2376#ifdef TARGET_WORDS_BIGENDIAN
2377 v = cirrus_linear_bitblt_readb(opaque, addr) << 24;
2378 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 16;
2379 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 8;
2380 v |= cirrus_linear_bitblt_readb(opaque, addr + 3);
2381#else
2382 v = cirrus_linear_bitblt_readb(opaque, addr);
2383 v |= cirrus_linear_bitblt_readb(opaque, addr + 1) << 8;
2384 v |= cirrus_linear_bitblt_readb(opaque, addr + 2) << 16;
2385 v |= cirrus_linear_bitblt_readb(opaque, addr + 3) << 24;
2386#endif
2387 return v;
2388}
2389
2390static void cirrus_linear_bitblt_writeb(void *opaque, target_phys_addr_t addr,
2391 uint32_t val)
2392{
2393 CirrusVGAState *s = (CirrusVGAState *) opaque;
2394
2395 if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2396 /* bitblt */
2397 *s->cirrus_srcptr++ = (uint8_t) val;
2398 if (s->cirrus_srcptr >= s->cirrus_srcptr_end) {
2399 cirrus_bitblt_cputovideo_next(s);
2400 }
2401 }
2402}
2403
2404static void cirrus_linear_bitblt_writew(void *opaque, target_phys_addr_t addr,
2405 uint32_t val)
2406{
2407#ifdef TARGET_WORDS_BIGENDIAN
2408 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 8) & 0xff);
2409 cirrus_linear_bitblt_writeb(opaque, addr + 1, val & 0xff);
2410#else
2411 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2412 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2413#endif
2414}
2415
2416static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
2417 uint32_t val)
2418{
2419#ifdef TARGET_WORDS_BIGENDIAN
2420 cirrus_linear_bitblt_writeb(opaque, addr, (val >> 24) & 0xff);
2421 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2422 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2423 cirrus_linear_bitblt_writeb(opaque, addr + 3, val & 0xff);
2424#else
2425 cirrus_linear_bitblt_writeb(opaque, addr, val & 0xff);
2426 cirrus_linear_bitblt_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2427 cirrus_linear_bitblt_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2428 cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2429#endif
2430}
2431
2432
2433static CPUReadMemoryFunc *cirrus_linear_bitblt_read[3] = {
2434 cirrus_linear_bitblt_readb,
2435 cirrus_linear_bitblt_readw,
2436 cirrus_linear_bitblt_readl,
2437};
2438
2439static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = {
2440 cirrus_linear_bitblt_writeb,
2441 cirrus_linear_bitblt_writew,
2442 cirrus_linear_bitblt_writel,
2443};
2444
8926b517
FB		 2445/* Compute the memory access functions */
2446static void cirrus_update_memory_access(CirrusVGAState *s)
2447{
2448 unsigned mode;
2449
2450 if ((s->sr[0x17] & 0x44) == 0x44) {
2451 goto generic_io;
2452 } else if (s->cirrus_srcptr != s->cirrus_srcptr_end) {
2453 goto generic_io;
2454 } else {
2455 if ((s->gr[0x0B] & 0x14) == 0x14) {
2456 goto generic_io;
2457 } else if (s->gr[0x0B] & 0x02) {
2458 goto generic_io;
2459 }
2460
2461 mode = s->gr[0x05] & 0x7;
2462 if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) {
2463 s->cirrus_linear_write[0] = cirrus_linear_mem_writeb;
2464 s->cirrus_linear_write[1] = cirrus_linear_mem_writew;
2465 s->cirrus_linear_write[2] = cirrus_linear_mem_writel;
2466 } else {
2467 generic_io:
2468 s->cirrus_linear_write[0] = cirrus_linear_writeb;
2469 s->cirrus_linear_write[1] = cirrus_linear_writew;
2470 s->cirrus_linear_write[2] = cirrus_linear_writel;
2471 }
2472 }
2473}
2474
2475
e6e5ad80
FB		 2476/* I/O ports */
2477
2478static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
2479{
2480 CirrusVGAState *s = opaque;
2481 int val, index;
2482
2483 /* check port range access depending on color/monochrome mode */
2484 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2485 || (addr >= 0x3d0 && addr <= 0x3df
2486 && !(s->msr & MSR_COLOR_EMULATION))) {
2487 val = 0xff;
2488 } else {
2489 switch (addr) {
2490 case 0x3c0:
2491 if (s->ar_flip_flop == 0) {
2492 val = s->ar_index;
2493 } else {
2494 val = 0;
2495 }
2496 break;
2497 case 0x3c1:
2498 index = s->ar_index & 0x1f;
2499 if (index < 21)
2500 val = s->ar[index];
2501 else
2502 val = 0;
2503 break;
2504 case 0x3c2:
2505 val = s->st00;
2506 break;
2507 case 0x3c4:
2508 val = s->sr_index;
2509 break;
2510 case 0x3c5:
2511 if (cirrus_hook_read_sr(s, s->sr_index, &val))
2512 break;
2513 val = s->sr[s->sr_index];
2514#ifdef DEBUG_VGA_REG
2515 printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
2516#endif
2517 break;
2518 case 0x3c6:
2519 cirrus_read_hidden_dac(s, &val);
2520 break;
2521 case 0x3c7:
2522 val = s->dac_state;
2523 break;
ae184e4a
FB		 2524 case 0x3c8:
2525 val = s->dac_write_index;
2526 s->cirrus_hidden_dac_lockindex = 0;
2527 break;
2528 case 0x3c9:
e6e5ad80
FB		 2529 if (cirrus_hook_read_palette(s, &val))
2530 break;
2531 val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
2532 if (++s->dac_sub_index == 3) {
2533 s->dac_sub_index = 0;
2534 s->dac_read_index++;
2535 }
2536 break;
2537 case 0x3ca:
2538 val = s->fcr;
2539 break;
2540 case 0x3cc:
2541 val = s->msr;
2542 break;
2543 case 0x3ce:
2544 val = s->gr_index;
2545 break;
2546 case 0x3cf:
2547 if (cirrus_hook_read_gr(s, s->gr_index, &val))
2548 break;
2549 val = s->gr[s->gr_index];
2550#ifdef DEBUG_VGA_REG
2551 printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
2552#endif
2553 break;
2554 case 0x3b4:
2555 case 0x3d4:
2556 val = s->cr_index;
2557 break;
2558 case 0x3b5:
2559 case 0x3d5:
2560 if (cirrus_hook_read_cr(s, s->cr_index, &val))
2561 break;
2562 val = s->cr[s->cr_index];
2563#ifdef DEBUG_VGA_REG
2564 printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
e6e5ad80
FB		 2565#endif
2566 break;
2567 case 0x3ba:
2568 case 0x3da:
2569 /* just toggle to fool polling */
2570 s->st01 ^= ST01_V_RETRACE | ST01_DISP_ENABLE;
2571 val = s->st01;
2572 s->ar_flip_flop = 0;
2573 break;
2574 default:
2575 val = 0x00;
2576 break;
2577 }
2578 }
2579#if defined(DEBUG_VGA)
2580 printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
2581#endif
2582 return val;
2583}
2584
2585static void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
2586{
2587 CirrusVGAState *s = opaque;
2588 int index;
2589
2590 /* check port range access depending on color/monochrome mode */
2591 if ((addr >= 0x3b0 && addr <= 0x3bf && (s->msr & MSR_COLOR_EMULATION))
2592 || (addr >= 0x3d0 && addr <= 0x3df
2593 && !(s->msr & MSR_COLOR_EMULATION)))
2594 return;
2595
2596#ifdef DEBUG_VGA
2597 printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
2598#endif
2599
2600 switch (addr) {
2601 case 0x3c0:
2602 if (s->ar_flip_flop == 0) {
2603 val &= 0x3f;
2604 s->ar_index = val;
2605 } else {
2606 index = s->ar_index & 0x1f;
2607 switch (index) {
2608 case 0x00 ... 0x0f:
2609 s->ar[index] = val & 0x3f;
2610 break;
2611 case 0x10:
2612 s->ar[index] = val & ~0x10;
2613 break;
2614 case 0x11:
2615 s->ar[index] = val;
2616 break;
2617 case 0x12:
2618 s->ar[index] = val & ~0xc0;
2619 break;
2620 case 0x13:
2621 s->ar[index] = val & ~0xf0;
2622 break;
2623 case 0x14:
2624 s->ar[index] = val & ~0xf0;
2625 break;
2626 default:
2627 break;
2628 }
2629 }
2630 s->ar_flip_flop ^= 1;
2631 break;
2632 case 0x3c2:
2633 s->msr = val & ~0x10;
2634 break;
2635 case 0x3c4:
2636 s->sr_index = val;
2637 break;
2638 case 0x3c5:
2639 if (cirrus_hook_write_sr(s, s->sr_index, val))
2640 break;
2641#ifdef DEBUG_VGA_REG
2642 printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
2643#endif
2644 s->sr[s->sr_index] = val & sr_mask[s->sr_index];
2645 break;
2646 case 0x3c6:
2647 cirrus_write_hidden_dac(s, val);
2648 break;
2649 case 0x3c7:
2650 s->dac_read_index = val;
2651 s->dac_sub_index = 0;
2652 s->dac_state = 3;
2653 break;
2654 case 0x3c8:
2655 s->dac_write_index = val;
2656 s->dac_sub_index = 0;
2657 s->dac_state = 0;
2658 break;
2659 case 0x3c9:
2660 if (cirrus_hook_write_palette(s, val))
2661 break;
2662 s->dac_cache[s->dac_sub_index] = val;
2663 if (++s->dac_sub_index == 3) {
2664 memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3);
2665 s->dac_sub_index = 0;
2666 s->dac_write_index++;
2667 }
2668 break;
2669 case 0x3ce:
2670 s->gr_index = val;
2671 break;
2672 case 0x3cf:
2673 if (cirrus_hook_write_gr(s, s->gr_index, val))
2674 break;
2675#ifdef DEBUG_VGA_REG
2676 printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
2677#endif
2678 s->gr[s->gr_index] = val & gr_mask[s->gr_index];
2679 break;
2680 case 0x3b4:
2681 case 0x3d4:
2682 s->cr_index = val;
2683 break;
2684 case 0x3b5:
2685 case 0x3d5:
2686 if (cirrus_hook_write_cr(s, s->cr_index, val))
2687 break;
2688#ifdef DEBUG_VGA_REG
2689 printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
2690#endif
2691 /* handle CR0-7 protection */
2692 if ((s->cr[11] & 0x80) && s->cr_index <= 7) {
2693 /* can always write bit 4 of CR7 */
2694 if (s->cr_index == 7)
2695 s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10);
2696 return;
2697 }
2698 switch (s->cr_index) {
2699 case 0x01: /* horizontal display end */
2700 case 0x07:
2701 case 0x09:
2702 case 0x0c:
2703 case 0x0d:
2704 case 0x12: /* veritcal display end */
2705 s->cr[s->cr_index] = val;
2706 break;
2707
2708 default:
2709 s->cr[s->cr_index] = val;
2710 break;
2711 }
2712 break;
2713 case 0x3ba:
2714 case 0x3da:
2715 s->fcr = val & 0x10;
2716 break;
2717 }
2718}
2719
e36f36e1
FB		 2720/***************************************
2721 *
2722 * memory-mapped I/O access
2723 *
2724 ***************************************/
2725
2726static uint32_t cirrus_mmio_readb(void *opaque, target_phys_addr_t addr)
2727{
2728 CirrusVGAState *s = (CirrusVGAState *) opaque;
2729
2730 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2731
2732 if (addr >= 0x100) {
2733 return cirrus_mmio_blt_read(s, addr - 0x100);
2734 } else {
2735 return vga_ioport_read(s, addr + 0x3c0);
2736 }
2737}
2738
2739static uint32_t cirrus_mmio_readw(void *opaque, target_phys_addr_t addr)
2740{
2741 uint32_t v;
2742#ifdef TARGET_WORDS_BIGENDIAN
2743 v = cirrus_mmio_readb(opaque, addr) << 8;
2744 v |= cirrus_mmio_readb(opaque, addr + 1);
2745#else
2746 v = cirrus_mmio_readb(opaque, addr);
2747 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2748#endif
2749 return v;
2750}
2751
2752static uint32_t cirrus_mmio_readl(void *opaque, target_phys_addr_t addr)
2753{
2754 uint32_t v;
2755#ifdef TARGET_WORDS_BIGENDIAN
2756 v = cirrus_mmio_readb(opaque, addr) << 24;
2757 v |= cirrus_mmio_readb(opaque, addr + 1) << 16;
2758 v |= cirrus_mmio_readb(opaque, addr + 2) << 8;
2759 v |= cirrus_mmio_readb(opaque, addr + 3);
2760#else
2761 v = cirrus_mmio_readb(opaque, addr);
2762 v |= cirrus_mmio_readb(opaque, addr + 1) << 8;
2763 v |= cirrus_mmio_readb(opaque, addr + 2) << 16;
2764 v |= cirrus_mmio_readb(opaque, addr + 3) << 24;
2765#endif
2766 return v;
2767}
2768
2769static void cirrus_mmio_writeb(void *opaque, target_phys_addr_t addr,
2770 uint32_t val)
2771{
2772 CirrusVGAState *s = (CirrusVGAState *) opaque;
2773
2774 addr &= CIRRUS_PNPMMIO_SIZE - 1;
2775
2776 if (addr >= 0x100) {
2777 cirrus_mmio_blt_write(s, addr - 0x100, val);
2778 } else {
2779 vga_ioport_write(s, addr + 0x3c0, val);
2780 }
2781}
2782
2783static void cirrus_mmio_writew(void *opaque, target_phys_addr_t addr,
2784 uint32_t val)
2785{
2786#ifdef TARGET_WORDS_BIGENDIAN
2787 cirrus_mmio_writeb(opaque, addr, (val >> 8) & 0xff);
2788 cirrus_mmio_writeb(opaque, addr + 1, val & 0xff);
2789#else
2790 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2791 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2792#endif
2793}
2794
2795static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
2796 uint32_t val)
2797{
2798#ifdef TARGET_WORDS_BIGENDIAN
2799 cirrus_mmio_writeb(opaque, addr, (val >> 24) & 0xff);
2800 cirrus_mmio_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2801 cirrus_mmio_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2802 cirrus_mmio_writeb(opaque, addr + 3, val & 0xff);
2803#else
2804 cirrus_mmio_writeb(opaque, addr, val & 0xff);
2805 cirrus_mmio_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2806 cirrus_mmio_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2807 cirrus_mmio_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2808#endif
2809}
2810
2811
2812static CPUReadMemoryFunc *cirrus_mmio_read[3] = {
2813 cirrus_mmio_readb,
2814 cirrus_mmio_readw,
2815 cirrus_mmio_readl,
2816};
2817
2818static CPUWriteMemoryFunc *cirrus_mmio_write[3] = {
2819 cirrus_mmio_writeb,
2820 cirrus_mmio_writew,
2821 cirrus_mmio_writel,
2822};
2823
2c6ab832
FB		 2824/* load/save state */
2825
2826static void cirrus_vga_save(QEMUFile *f, void *opaque)
2827{
2828 CirrusVGAState *s = opaque;
2829
2830 qemu_put_be32s(f, &s->latch);
2831 qemu_put_8s(f, &s->sr_index);
2832 qemu_put_buffer(f, s->sr, 256);
2833 qemu_put_8s(f, &s->gr_index);
2834 qemu_put_8s(f, &s->cirrus_shadow_gr0);
2835 qemu_put_8s(f, &s->cirrus_shadow_gr1);
2836 qemu_put_buffer(f, s->gr + 2, 254);
2837 qemu_put_8s(f, &s->ar_index);
2838 qemu_put_buffer(f, s->ar, 21);
2839 qemu_put_be32s(f, &s->ar_flip_flop);
2840 qemu_put_8s(f, &s->cr_index);
2841 qemu_put_buffer(f, s->cr, 256);
2842 qemu_put_8s(f, &s->msr);
2843 qemu_put_8s(f, &s->fcr);
2844 qemu_put_8s(f, &s->st00);
2845 qemu_put_8s(f, &s->st01);
2846
2847 qemu_put_8s(f, &s->dac_state);
2848 qemu_put_8s(f, &s->dac_sub_index);
2849 qemu_put_8s(f, &s->dac_read_index);
2850 qemu_put_8s(f, &s->dac_write_index);
2851 qemu_put_buffer(f, s->dac_cache, 3);
2852 qemu_put_buffer(f, s->palette, 768);
2853
2854 qemu_put_be32s(f, &s->bank_offset);
2855
2856 qemu_put_8s(f, &s->cirrus_hidden_dac_lockindex);
2857 qemu_put_8s(f, &s->cirrus_hidden_dac_data);
2858
2859 qemu_put_be32s(f, &s->hw_cursor_x);
2860 qemu_put_be32s(f, &s->hw_cursor_y);
2861 /* XXX: we do not save the bitblt state - we assume we do not save
2862 the state when the blitter is active */
2863}
2864
2865static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id)
2866{
2867 CirrusVGAState *s = opaque;
2868
2869 if (version_id != 1)
2870 return -EINVAL;
2871
2872 qemu_get_be32s(f, &s->latch);
2873 qemu_get_8s(f, &s->sr_index);
2874 qemu_get_buffer(f, s->sr, 256);
2875 qemu_get_8s(f, &s->gr_index);
2876 qemu_get_8s(f, &s->cirrus_shadow_gr0);
2877 qemu_get_8s(f, &s->cirrus_shadow_gr1);
2878 s->gr[0x00] = s->cirrus_shadow_gr0 & 0x0f;
2879 s->gr[0x01] = s->cirrus_shadow_gr1 & 0x0f;
2880 qemu_get_buffer(f, s->gr + 2, 254);
2881 qemu_get_8s(f, &s->ar_index);
2882 qemu_get_buffer(f, s->ar, 21);
2883 qemu_get_be32s(f, &s->ar_flip_flop);
2884 qemu_get_8s(f, &s->cr_index);
2885 qemu_get_buffer(f, s->cr, 256);
2886 qemu_get_8s(f, &s->msr);
2887 qemu_get_8s(f, &s->fcr);
2888 qemu_get_8s(f, &s->st00);
2889 qemu_get_8s(f, &s->st01);
2890
2891 qemu_get_8s(f, &s->dac_state);
2892 qemu_get_8s(f, &s->dac_sub_index);
2893 qemu_get_8s(f, &s->dac_read_index);
2894 qemu_get_8s(f, &s->dac_write_index);
2895 qemu_get_buffer(f, s->dac_cache, 3);
2896 qemu_get_buffer(f, s->palette, 768);
2897
2898 qemu_get_be32s(f, &s->bank_offset);
2899
2900 qemu_get_8s(f, &s->cirrus_hidden_dac_lockindex);
2901 qemu_get_8s(f, &s->cirrus_hidden_dac_data);
2902
2903 qemu_get_be32s(f, &s->hw_cursor_x);
2904 qemu_get_be32s(f, &s->hw_cursor_y);
2905
2906 /* force refresh */
2907 s->graphic_mode = -1;
2908 cirrus_update_bank_ptr(s, 0);
2909 cirrus_update_bank_ptr(s, 1);
2910 return 0;
2911}
2912
e6e5ad80
FB		 2913/***************************************
2914 *
2915 * initialize
2916 *
2917 ***************************************/
2918
78e127ef 2919static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
e6e5ad80 2920{
a5082316
FB		 2921 int vga_io_memory, i;
2922 static int inited;
2923
2924 if (!inited) {
2925 inited = 1;
2926 for(i = 0;i < 256; i++)
2927 rop_to_index[i] = CIRRUS_ROP_NOP_INDEX; /* nop rop */
2928 rop_to_index[CIRRUS_ROP_0] = 0;
2929 rop_to_index[CIRRUS_ROP_SRC_AND_DST] = 1;
2930 rop_to_index[CIRRUS_ROP_NOP] = 2;
2931 rop_to_index[CIRRUS_ROP_SRC_AND_NOTDST] = 3;
2932 rop_to_index[CIRRUS_ROP_NOTDST] = 4;
2933 rop_to_index[CIRRUS_ROP_SRC] = 5;
2934 rop_to_index[CIRRUS_ROP_1] = 6;
2935 rop_to_index[CIRRUS_ROP_NOTSRC_AND_DST] = 7;
2936 rop_to_index[CIRRUS_ROP_SRC_XOR_DST] = 8;
2937 rop_to_index[CIRRUS_ROP_SRC_OR_DST] = 9;
2938 rop_to_index[CIRRUS_ROP_NOTSRC_OR_NOTDST] = 10;
2939 rop_to_index[CIRRUS_ROP_SRC_NOTXOR_DST] = 11;
2940 rop_to_index[CIRRUS_ROP_SRC_OR_NOTDST] = 12;
2941 rop_to_index[CIRRUS_ROP_NOTSRC] = 13;
2942 rop_to_index[CIRRUS_ROP_NOTSRC_OR_DST] = 14;
2943 rop_to_index[CIRRUS_ROP_NOTSRC_AND_NOTDST] = 15;
2944 }
e6e5ad80
FB		 2945
2946 register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
2947
2948 register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
2949 register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
2950 register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
2951 register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
2952
2953 register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
2954
2955 register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
2956 register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
2957 register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
2958 register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
2959
2960 vga_io_memory = cpu_register_io_memory(0, cirrus_vga_mem_read,
2961 cirrus_vga_mem_write, s);
2962 cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
2963 vga_io_memory);
2964
2965 s->sr[0x06] = 0x0f;
78e127ef
FB		 2966 if (device_id == CIRRUS_ID_CLGD5446) {
2967 /* 4MB 64 bit memory config, always PCI */
b30d4608
FB		 2968 s->sr[0x1F] = 0x2d; // MemClock
2969 s->gr[0x18] = 0x0f; // fastest memory configuration
78e127ef
FB		 2970#if 1
2971 s->sr[0x0f] = 0x98;
2972 s->sr[0x17] = 0x20;
2973 s->sr[0x15] = 0x04; /* memory size, 3=2MB, 4=4MB */
2974 s->real_vram_size = 4096 * 1024;
2975#else
2976 s->sr[0x0f] = 0x18;
2977 s->sr[0x17] = 0x20;
2978 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2979 s->real_vram_size = 2048 * 1024;
2980#endif
2981 } else {
b30d4608 2982 s->sr[0x1F] = 0x22; // MemClock
78e127ef
FB		 2983 s->sr[0x0F] = CIRRUS_MEMSIZE_2M;
2984 if (is_pci)
2985 s->sr[0x17] = CIRRUS_BUSTYPE_PCI;
2986 else
2987 s->sr[0x17] = CIRRUS_BUSTYPE_ISA;
2988 s->real_vram_size = 2048 * 1024;
2989 s->sr[0x15] = 0x03; /* memory size, 3=2MB, 4=4MB */
2990 }
20ba3ae1 2991 s->cr[0x27] = device_id;
e6e5ad80 2992
78e127ef
FB		 2993 /* Win2K seems to assume that the pattern buffer is at 0xff
2994 initially ! */
2995 memset(s->vram_ptr, 0xff, s->real_vram_size);
2996
e6e5ad80
FB		 2997 s->cirrus_hidden_dac_lockindex = 5;
2998 s->cirrus_hidden_dac_data = 0;
2999
3000 /* I/O handler for LFB */
3001 s->cirrus_linear_io_addr =
3002 cpu_register_io_memory(0, cirrus_linear_read, cirrus_linear_write,
3003 s);
8926b517
FB		 3004 s->cirrus_linear_write = cpu_get_io_memory_write(s->cirrus_linear_io_addr);
3005
a5082316
FB		 3006 /* I/O handler for LFB */
3007 s->cirrus_linear_bitblt_io_addr =
3008 cpu_register_io_memory(0, cirrus_linear_bitblt_read, cirrus_linear_bitblt_write,
3009 s);
3010
e6e5ad80
FB		 3011 /* I/O handler for memory-mapped I/O */
3012 s->cirrus_mmio_io_addr =
3013 cpu_register_io_memory(0, cirrus_mmio_read, cirrus_mmio_write, s);
3014
3015 /* XXX: s->vram_size must be a power of two */
78e127ef
FB		 3016 s->cirrus_addr_mask = s->real_vram_size - 1;
3017 s->linear_mmio_mask = s->real_vram_size - 256;
e6e5ad80
FB		 3018
3019 s->get_bpp = cirrus_get_bpp;
3020 s->get_offsets = cirrus_get_offsets;
78e127ef 3021 s->get_resolution = cirrus_get_resolution;
a5082316
FB		 3022 s->cursor_invalidate = cirrus_cursor_invalidate;
3023 s->cursor_draw_line = cirrus_cursor_draw_line;
2c6ab832
FB		 3024
3025 register_savevm("cirrus_vga", 0, 1, cirrus_vga_save, cirrus_vga_load, s);
e6e5ad80
FB		 3026}
3027
3028/***************************************
3029 *
3030 * ISA bus support
3031 *
3032 ***************************************/
3033
3034void isa_cirrus_vga_init(DisplayState *ds, uint8_t *vga_ram_base,
3035 unsigned long vga_ram_offset, int vga_ram_size)
3036{
3037 CirrusVGAState *s;
3038
3039 s = qemu_mallocz(sizeof(CirrusVGAState));
3040
3041 vga_common_init((VGAState *)s,
3042 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
78e127ef 3043 cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
e6e5ad80
FB		 3044 /* XXX ISA-LFB support */
3045}
3046
3047/***************************************
3048 *
3049 * PCI bus support
3050 *
3051 ***************************************/
3052
3053static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
3054 uint32_t addr, uint32_t size, int type)
3055{
3056 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3057
a5082316 3058 /* XXX: add byte swapping apertures */
e6e5ad80
FB		 3059 cpu_register_physical_memory(addr, s->vram_size,
3060 s->cirrus_linear_io_addr);
a5082316
FB		 3061 cpu_register_physical_memory(addr + 0x1000000, 0x400000,
3062 s->cirrus_linear_bitblt_io_addr);
e6e5ad80
FB		 3063}
3064
3065static void cirrus_pci_mmio_map(PCIDevice *d, int region_num,
3066 uint32_t addr, uint32_t size, int type)
3067{
3068 CirrusVGAState *s = &((PCICirrusVGAState *)d)->cirrus_vga;
3069
3070 cpu_register_physical_memory(addr, CIRRUS_PNPMMIO_SIZE,
3071 s->cirrus_mmio_io_addr);
3072}
3073
46e50e9d 3074void pci_cirrus_vga_init(PCIBus *bus, DisplayState *ds, uint8_t *vga_ram_base,
e6e5ad80
FB		 3075 unsigned long vga_ram_offset, int vga_ram_size)
3076{
3077 PCICirrusVGAState *d;
3078 uint8_t *pci_conf;
3079 CirrusVGAState *s;
20ba3ae1
FB		 3080 int device_id;
3081
3082 device_id = CIRRUS_ID_CLGD5446;
e6e5ad80
FB		 3083
3084 /* setup PCI configuration registers */
46e50e9d 3085 d = (PCICirrusVGAState *)pci_register_device(bus, "Cirrus VGA",
e6e5ad80 3086 sizeof(PCICirrusVGAState),
46e50e9d 3087 -1, NULL, NULL);
e6e5ad80
FB		 3088 pci_conf = d->dev.config;
3089 pci_conf[0x00] = (uint8_t) (PCI_VENDOR_CIRRUS & 0xff);
3090 pci_conf[0x01] = (uint8_t) (PCI_VENDOR_CIRRUS >> 8);
20ba3ae1
FB		 3091 pci_conf[0x02] = (uint8_t) (device_id & 0xff);
3092 pci_conf[0x03] = (uint8_t) (device_id >> 8);
e6e5ad80
FB		 3093 pci_conf[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS;
3094 pci_conf[0x0a] = PCI_CLASS_SUB_VGA;
3095 pci_conf[0x0b] = PCI_CLASS_BASE_DISPLAY;
3096 pci_conf[0x0e] = PCI_CLASS_HEADERTYPE_00h;
3097
3098 /* setup VGA */
3099 s = &d->cirrus_vga;
3100 vga_common_init((VGAState *)s,
3101 ds, vga_ram_base, vga_ram_offset, vga_ram_size);
78e127ef 3102 cirrus_init_common(s, device_id, 1);
e6e5ad80
FB		 3103
3104 /* setup memory space */
3105 /* memory #0 LFB */
3106 /* memory #1 memory-mapped I/O */
3107 /* XXX: s->vram_size must be a power of two */
a5082316 3108 pci_register_io_region((PCIDevice *)d, 0, 0x2000000,
a21ae81d 3109 PCI_ADDRESS_SPACE_MEM_PREFETCH, cirrus_pci_lfb_map);
20ba3ae1 3110 if (device_id == CIRRUS_ID_CLGD5446) {
a21ae81d
FB		 3111 pci_register_io_region((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
3112 PCI_ADDRESS_SPACE_MEM, cirrus_pci_mmio_map);
3113 }
e6e5ad80
FB		 3114 /* XXX: ROM BIOS */
3115}
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