1 /*
2 * Matrox MGA G200/G400 YUV Video Interface module Version 0.1.0
3 * BES == Back End Scaler
4 *
5 * Copyright (C) 1999 Aaron Holtzman
6 *
7 * Module skeleton based on gutted agpgart module by
8 * Jeff Hartmann <slicer@ionet.net>
9 * YUY2 support (see config.format) added by A'rpi/ESP-team
10 * double buffering added by A'rpi/ESP-team
11 * brightness/contrast introduced by eyck
12 * multiple card support by Attila Kinali <attila@kinali.ch>
13 *
14 * This file is part of mga_vid.
15 *
16 * mga_vid is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * mga_vid is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with mga_vid; if not, write to the Free Software Foundation, Inc.,
28 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
29 */
30
31 //It's entirely possible this major conflicts with something else
32 //use the 'major' parameter to override the default major number (178)
33 /* mknod /dev/mga_vid c 178 0 */
34
35 //#define CRTC2
36
37 // Set this value, if autodetection fails! (video ram size in megabytes)
38 // #define MGA_MEMORY_SIZE 16
39
40 //#define MGA_ALLOW_IRQ
41
42 #define MGA_VSYNC_POS 2
43
44 #include <linux/config.h>
45 #include <linux/version.h>
46 #include <linux/module.h>
47 #include <linux/types.h>
48 #include <linux/kernel.h>
49 #include <linux/sched.h>
50 #include <linux/mm.h>
51 #include <linux/string.h>
52 #include <linux/errno.h>
53
54 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
55 #include <linux/malloc.h>
56 #else
57 #include <linux/slab.h>
58 #endif
59
60 #include <linux/pci.h>
61 #include <linux/ioport.h>
62 #include <linux/init.h>
63
64 #include "mga_vid.h"
65
66 #ifdef CONFIG_MTRR
67 #include <asm/mtrr.h>
68 #endif
69
70 #ifdef CONFIG_DEVFS_FS
71 #include <linux/devfs_fs_kernel.h>
72 #endif
73
74 #include <asm/uaccess.h>
75 #include <asm/system.h>
76 #include <asm/io.h>
77
78 #define TRUE 1
79 #define FALSE 0
80
81 #define DEFAULT_MGA_VID_MAJOR 178
82
83 #ifndef PCI_DEVICE_ID_MATROX_G200_PCI
84 #define PCI_DEVICE_ID_MATROX_G200_PCI 0x0520
85 #endif
86
87 #ifndef PCI_DEVICE_ID_MATROX_G200_AGP
88 #define PCI_DEVICE_ID_MATROX_G200_AGP 0x0521
89 #endif
90
91 #ifndef PCI_DEVICE_ID_MATROX_G400
92 #define PCI_DEVICE_ID_MATROX_G400 0x0525
93 #endif
94
95 #ifndef PCI_DEVICE_ID_MATROX_G550
96 #define PCI_DEVICE_ID_MATROX_G550 0x2527
97 #endif
98
99 #ifndef PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB
100 #define PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB 0x2159
101 #endif
102
103 #ifndef PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM
104 #define PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM 0x19d8
105 #endif
106
107 #ifndef PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM
108 #define PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM 0x0328
109 #endif
110
111 MODULE_AUTHOR("Aaron Holtzman <aholtzma@engr.uvic.ca>");
112 #ifdef MODULE_LICENSE
113 MODULE_LICENSE("GPL");
114 #endif
115
116 #define PARAM_BRIGHTNESS "brightness="
117 #define PARAM_CONTRAST "contrast="
118 #define PARAM_BLACKIE "blackie="
119
120 // set PARAM_BUFF_SIZE to just below 4k because some kernel versions
121 // store additional information in the memory page which leads to
122 // the allocation of an additional page if exactly 4k is used
123 #define PARAM_BUFF_SIZE 4000
124
125 #ifndef min
126 #define min(x,y) (((x)<(y))?(x):(y))
127 #endif
128
129 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
130 #include <linux/ctype.h>
131
simple_strtoul(const char * cp,char ** endp,unsigned int base)132 static unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
133 {
134 unsigned long result = 0,value;
135
136 if (!base) {
137 base = 10;
138 if (*cp == '0') {
139 base = 8;
140 cp++;
141 if ((*cp == 'x') && isxdigit(cp[1])) {
142 cp++;
143 base = 16;
144 }
145 }
146 }
147 while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
148 ? toupper(*cp) : *cp)-'A'+10) < base) {
149 result = result*base + value;
150 cp++;
151 }
152 if (endp)
153 *endp = (char *)cp;
154 return result;
155 }
156
simple_strtol(const char * cp,char ** endp,unsigned int base)157 static long simple_strtol(const char *cp,char **endp,unsigned int base)
158 {
159 if(*cp=='-')
160 return -simple_strtoul(cp+1,endp,base);
161 return simple_strtoul(cp,endp,base);
162 }
163 #endif
164
165
166 typedef struct bes_registers_s
167 {
168 //BES Control
169 uint32_t besctl;
170 //BES Global control
171 uint32_t besglobctl;
172 //Luma control (brightness and contrast)
173 uint32_t beslumactl;
174 //Line pitch
175 uint32_t bespitch;
176
177 //Buffer A-1 Chroma 3 plane org
178 uint32_t besa1c3org;
179 //Buffer A-1 Chroma org
180 uint32_t besa1corg;
181 //Buffer A-1 Luma org
182 uint32_t besa1org;
183
184 //Buffer A-2 Chroma 3 plane org
185 uint32_t besa2c3org;
186 //Buffer A-2 Chroma org
187 uint32_t besa2corg;
188 //Buffer A-2 Luma org
189 uint32_t besa2org;
190
191 //Buffer B-1 Chroma 3 plane org
192 uint32_t besb1c3org;
193 //Buffer B-1 Chroma org
194 uint32_t besb1corg;
195 //Buffer B-1 Luma org
196 uint32_t besb1org;
197
198 //Buffer B-2 Chroma 3 plane org
199 uint32_t besb2c3org;
200 //Buffer B-2 Chroma org
201 uint32_t besb2corg;
202 //Buffer B-2 Luma org
203 uint32_t besb2org;
204
205 //BES Horizontal coord
206 uint32_t beshcoord;
207 //BES Horizontal inverse scaling [5.14]
208 uint32_t beshiscal;
209 //BES Horizontal source start [10.14] (for scaling)
210 uint32_t beshsrcst;
211 //BES Horizontal source ending [10.14] (for scaling)
212 uint32_t beshsrcend;
213 //BES Horizontal source last
214 uint32_t beshsrclst;
215
216
217 //BES Vertical coord
218 uint32_t besvcoord;
219 //BES Vertical inverse scaling [5.14]
220 uint32_t besviscal;
221 //BES Field 1 vertical source last position
222 uint32_t besv1srclst;
223 //BES Field 1 weight start
224 uint32_t besv1wght;
225 //BES Field 2 vertical source last position
226 uint32_t besv2srclst;
227 //BES Field 2 weight start
228 uint32_t besv2wght;
229
230
231 //configurable stuff
232 int blackie;
233
234 } bes_registers_t;
235
236 #ifdef CRTC2
237 typedef struct crtc2_registers_s
238 {
239 uint32_t c2ctl;
240 uint32_t c2datactl;
241 uint32_t c2misc;
242 uint32_t c2hparam;
243 uint32_t c2hsync;
244 uint32_t c2offset;
245 uint32_t c2pl2startadd0;
246 uint32_t c2pl2startadd1;
247 uint32_t c2pl3startadd0;
248 uint32_t c2pl3startadd1;
249 uint32_t c2preload;
250 uint32_t c2spicstartadd0;
251 uint32_t c2spicstartadd1;
252 uint32_t c2startadd0;
253 uint32_t c2startadd1;
254 uint32_t c2subpiclut;
255 uint32_t c2vcount;
256 uint32_t c2vparam;
257 uint32_t c2vsync;
258 } crtc2_registers_t;
259 #endif
260
261
262
263
264
265 //All register offsets are converted to word aligned offsets (32 bit)
266 //because we want all our register accesses to be 32 bits
267 #define VCOUNT 0x1e20
268
269 #define PALWTADD 0x3c00 // Index register for X_DATAREG port
270 #define X_DATAREG 0x3c0a
271
272 #define XMULCTRL 0x19
273 #define BPP_8 0x00
274 #define BPP_15 0x01
275 #define BPP_16 0x02
276 #define BPP_24 0x03
277 #define BPP_32_DIR 0x04
278 #define BPP_32_PAL 0x07
279
280 #define XCOLMSK 0x40
281 #define X_COLKEY 0x42
282 #define XKEYOPMODE 0x51
283 #define XCOLMSK0RED 0x52
284 #define XCOLMSK0GREEN 0x53
285 #define XCOLMSK0BLUE 0x54
286 #define XCOLKEY0RED 0x55
287 #define XCOLKEY0GREEN 0x56
288 #define XCOLKEY0BLUE 0x57
289
290 #ifdef CRTC2
291
292 /*CRTC2 registers*/
293 #define XMISCCTRL 0x1e
294 #define C2CTL 0x3c10
295 #define C2DATACTL 0x3c4c
296 #define C2MISC 0x3c44
297 #define C2HPARAM 0x3c14
298 #define C2HSYNC 0x3c18
299 #define C2OFFSET 0x3c40
300 #define C2PL2STARTADD0 0x3c30 // like BESA1CORG
301 #define C2PL2STARTADD1 0x3c34 // like BESA2CORG
302 #define C2PL3STARTADD0 0x3c38 // like BESA1C3ORG
303 #define C2PL3STARTADD1 0x3c3c // like BESA2C3ORG
304 #define C2PRELOAD 0x3c24
305 #define C2SPICSTARTADD0 0x3c54
306 #define C2SPICSTARTADD1 0x3c58
307 #define C2STARTADD0 0x3c28 // like BESA1ORG
308 #define C2STARTADD1 0x3c2c // like BESA2ORG
309 #define C2SUBPICLUT 0x3c50
310 #define C2VCOUNT 0x3c48
311 #define C2VPARAM 0x3c1c
312 #define C2VSYNC 0x3c20
313
314 #endif
315
316 // Backend Scaler registers
317 #define BESCTL 0x3d20
318 #define BESGLOBCTL 0x3dc0
319 #define BESLUMACTL 0x3d40
320 #define BESPITCH 0x3d24
321
322 #define BESA1C3ORG 0x3d60
323 #define BESA1CORG 0x3d10
324 #define BESA1ORG 0x3d00
325
326 #define BESA2C3ORG 0x3d64
327 #define BESA2CORG 0x3d14
328 #define BESA2ORG 0x3d04
329
330 #define BESB1C3ORG 0x3d68
331 #define BESB1CORG 0x3d18
332 #define BESB1ORG 0x3d08
333
334 #define BESB2C3ORG 0x3d6C
335 #define BESB2CORG 0x3d1C
336 #define BESB2ORG 0x3d0C
337
338 #define BESHCOORD 0x3d28
339 #define BESHISCAL 0x3d30
340 #define BESHSRCEND 0x3d3C
341 #define BESHSRCLST 0x3d50
342 #define BESHSRCST 0x3d38
343 #define BESV1WGHT 0x3d48
344 #define BESV2WGHT 0x3d4c
345 #define BESV1SRCLST 0x3d54
346 #define BESV2SRCLST 0x3d58
347 #define BESVISCAL 0x3d34
348 #define BESVCOORD 0x3d2c
349 #define BESSTATUS 0x3dc4
350
351 #define CRTCX 0x1fd4
352 #define CRTCD 0x1fd5
353 #define IEN 0x1e1c
354 #define ICLEAR 0x1e18
355 #define STATUS 0x1e14
356
357
358 // global devfs handle for /dev/mga_vid
359 #ifdef CONFIG_DEVFS_FS
360 static devfs_handle_t dev_handle = NULL;
361 #endif
362
363 // card local config
364 typedef struct mga_card_s {
365
366 // local devfs handle for /dev/mga_vidX
367 #ifdef CONFIG_DEVFS_FS
368 devfs_handle_t dev_handle;
369 #endif
370
371 uint8_t *param_buff; // buffer for read()
372 uint32_t param_buff_size;
373 uint32_t param_buff_len;
374 bes_registers_t regs;
375 #ifdef CRTC2
376 crtc2_registers_t cregs;
377 #endif
378 uint32_t vid_in_use;
379 uint32_t is_g400;
380 uint32_t vid_src_ready;
381 uint32_t vid_overlay_on;
382
383 uint8_t *mmio_base;
384 uint32_t mem_base;
385 int src_base; // YUV buffer position in video memory
386 uint32_t ram_size; // how much megabytes videoram we have
387 uint32_t top_reserved; // reserved space for console font (matroxfb + fastfont)
388
389 int brightness; // initial brightness
390 int contrast; // initial contrast
391
392 struct pci_dev *pci_dev;
393
394 mga_vid_config_t config;
395 int configured; // set to 1 when the card is configured over ioctl
396
397 int colkey_saved;
398 int colkey_on;
399 unsigned char colkey_color[4];
400 unsigned char colkey_mask[4];
401
402 int irq; // = -1
403 int next_frame;
404 } mga_card_t;
405
406 #define MGA_MAX_CARDS 16
407 // this is used as init value for the parameter arrays
408 // it should have exactly MGA_MAX_CARDS elements
409 #define MGA_MAX_CARDS_INIT_ARRAY {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
410 static unsigned int mga_cards_num=0;
411 static mga_card_t * mga_cards[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
412
413 // module parameters
414 static int major = DEFAULT_MGA_VID_MAJOR;
415 static int mga_ram_size[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
416 static int mga_brightness[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
417 static int mga_contrast[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
418 static int mga_top_reserved[MGA_MAX_CARDS] = MGA_MAX_CARDS_INIT_ARRAY;
419
420 MODULE_PARM(mga_ram_size, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
421 MODULE_PARM(mga_top_reserved, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
422 MODULE_PARM(mga_brightness, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
423 MODULE_PARM(mga_contrast, "1-" __MODULE_STRING(MGA_MAX_CARDS) "i");
424 MODULE_PARM(major, "i");
425
426 #ifdef CRTC2
crtc2_frame_sel(mga_card_t * card,int frame)427 static void crtc2_frame_sel(mga_card_t * card, int frame)
428 {
429 switch(frame) {
430 case 0:
431 card->cregs.c2pl2startadd0=card->regs.besa1corg;
432 card->cregs.c2pl3startadd0=card->regs.besa1c3org;
433 card->cregs.c2startadd0=card->regs.besa1org;
434 break;
435 case 1:
436 card->cregs.c2pl2startadd0=card->regs.besa2corg;
437 card->cregs.c2pl3startadd0=card->regs.besa2c3org;
438 card->cregs.c2startadd0=card->regs.besa2org;
439 break;
440 case 2:
441 card->cregs.c2pl2startadd0=card->regs.besb1corg;
442 card->cregs.c2pl3startadd0=card->regs.besb1c3org;
443 card->cregs.c2startadd0=card->regs.besb1org;
444 break;
445 case 3:
446 card->cregs.c2pl2startadd0=card->regs.besb2corg;
447 card->cregs.c2pl3startadd0=card->regs.besb2c3org;
448 card->cregs.c2startadd0=card->regs.besb2org;
449 break;
450 }
451 writel(card->cregs.c2startadd0, card->mmio_base + C2STARTADD0);
452 writel(card->cregs.c2pl2startadd0, card->mmio_base + C2PL2STARTADD0);
453 writel(card->cregs.c2pl3startadd0, card->mmio_base + C2PL3STARTADD0);
454 }
455 #endif
456
mga_vid_frame_sel(mga_card_t * card,int frame)457 static void mga_vid_frame_sel(mga_card_t * card, int frame)
458 {
459 if ( card->irq != -1 ) {
460 card->next_frame=frame;
461 } else {
462
463 //we don't need the vcount protection as we're only hitting
464 //one register (and it doesn't seem to be double buffered)
465 card->regs.besctl = (card->regs.besctl & ~0x07000000) + (frame << 25);
466 writel( card->regs.besctl, card->mmio_base + BESCTL );
467
468 // writel( card->regs.besglobctl + ((readl(card->mmio_base + VCOUNT)+2)<<16),
469 writel( card->regs.besglobctl + (MGA_VSYNC_POS<<16),
470 card->mmio_base + BESGLOBCTL);
471 #ifdef CRTC2
472 crtc2_frame_sel(card, frame);
473 #endif
474
475 }
476 }
477
478
mga_vid_write_regs(mga_card_t * card,int restore)479 static void mga_vid_write_regs(mga_card_t * card, int restore)
480 {
481 //Make sure internal registers don't get updated until we're done
482 writel( (readl(card->mmio_base + VCOUNT)-1)<<16,
483 card->mmio_base + BESGLOBCTL);
484
485 // color or coordinate keying
486
487 if(restore && card->colkey_saved){
488 // restore it
489 card->colkey_saved=0;
490
491 #ifdef MP_DEBUG
492 printk("mga_vid: Restoring colorkey (ON: %d %02X:%02X:%02X)\n",
493 card->colkey_on,card->colkey_color[0],card->colkey_color[1],card->colkey_color[2]);
494 #endif
495
496 // Set color key registers:
497 writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
498 writeb( card->colkey_on, card->mmio_base + X_DATAREG);
499
500 writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
501 writeb( card->colkey_color[0], card->mmio_base + X_DATAREG);
502 writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
503 writeb( card->colkey_color[1], card->mmio_base + X_DATAREG);
504 writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
505 writeb( card->colkey_color[2], card->mmio_base + X_DATAREG);
506 writeb( X_COLKEY, card->mmio_base + PALWTADD);
507 writeb( card->colkey_color[3], card->mmio_base + X_DATAREG);
508
509 writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
510 writeb( card->colkey_mask[0], card->mmio_base + X_DATAREG);
511 writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
512 writeb( card->colkey_mask[1], card->mmio_base + X_DATAREG);
513 writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
514 writeb( card->colkey_mask[2], card->mmio_base + X_DATAREG);
515 writeb( XCOLMSK, card->mmio_base + PALWTADD);
516 writeb( card->colkey_mask[3], card->mmio_base + X_DATAREG);
517
518 } else if(!card->colkey_saved){
519 // save it
520 card->colkey_saved=1;
521 // Get color key registers:
522 writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
523 card->colkey_on=(unsigned char)readb(card->mmio_base + X_DATAREG) & 1;
524
525 writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
526 card->colkey_color[0]=(unsigned char)readb(card->mmio_base + X_DATAREG);
527 writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
528 card->colkey_color[1]=(unsigned char)readb(card->mmio_base + X_DATAREG);
529 writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
530 card->colkey_color[2]=(unsigned char)readb(card->mmio_base + X_DATAREG);
531 writeb( X_COLKEY, card->mmio_base + PALWTADD);
532 card->colkey_color[3]=(unsigned char)readb(card->mmio_base + X_DATAREG);
533
534 writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
535 card->colkey_mask[0]=(unsigned char)readb(card->mmio_base + X_DATAREG);
536 writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
537 card->colkey_mask[1]=(unsigned char)readb(card->mmio_base + X_DATAREG);
538 writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
539 card->colkey_mask[2]=(unsigned char)readb(card->mmio_base + X_DATAREG);
540 writeb( XCOLMSK, card->mmio_base + PALWTADD);
541 card->colkey_mask[3]=(unsigned char)readb(card->mmio_base + X_DATAREG);
542
543 #ifdef MP_DEBUG
544 printk("mga_vid: Saved colorkey (ON: %d %02X:%02X:%02X)\n",
545 card->colkey_on, card->colkey_color[0], card->colkey_color[1], card->colkey_color[2]);
546 #endif
547
548 }
549
550 if(!restore){
551 writeb( XKEYOPMODE, card->mmio_base + PALWTADD);
552 writeb( card->config.colkey_on, card->mmio_base + X_DATAREG);
553 if ( card->config.colkey_on )
554 {
555 uint32_t r=0, g=0, b=0;
556
557 writeb( XMULCTRL, card->mmio_base + PALWTADD);
558 switch (readb (card->mmio_base + X_DATAREG))
559 {
560 case BPP_8:
561 /* Need to look up the color index, just using color 0 for now. */
562 break;
563
564 case BPP_15:
565 r = card->config.colkey_red >> 3;
566 g = card->config.colkey_green >> 3;
567 b = card->config.colkey_blue >> 3;
568 break;
569
570 case BPP_16:
571 r = card->config.colkey_red >> 3;
572 g = card->config.colkey_green >> 2;
573 b = card->config.colkey_blue >> 3;
574 break;
575
576 case BPP_24:
577 case BPP_32_DIR:
578 case BPP_32_PAL:
579 r = card->config.colkey_red;
580 g = card->config.colkey_green;
581 b = card->config.colkey_blue;
582 break;
583 }
584
585 // Disable color keying on alpha channel
586 writeb( XCOLMSK, card->mmio_base + PALWTADD);
587 writeb( 0x00, card->mmio_base + X_DATAREG);
588 writeb( X_COLKEY, card->mmio_base + PALWTADD);
589 writeb( 0x00, card->mmio_base + X_DATAREG);
590
591
592 // Set up color key registers
593 writeb( XCOLKEY0RED, card->mmio_base + PALWTADD);
594 writeb( r, card->mmio_base + X_DATAREG);
595 writeb( XCOLKEY0GREEN, card->mmio_base + PALWTADD);
596 writeb( g, card->mmio_base + X_DATAREG);
597 writeb( XCOLKEY0BLUE, card->mmio_base + PALWTADD);
598 writeb( b, card->mmio_base + X_DATAREG);
599
600 // Set up color key mask registers
601 writeb( XCOLMSK0RED, card->mmio_base + PALWTADD);
602 writeb( 0xff, card->mmio_base + X_DATAREG);
603 writeb( XCOLMSK0GREEN, card->mmio_base + PALWTADD);
604 writeb( 0xff, card->mmio_base + X_DATAREG);
605 writeb( XCOLMSK0BLUE, card->mmio_base + PALWTADD);
606 writeb( 0xff, card->mmio_base + X_DATAREG);
607 }
608 }
609
610 // Backend Scaler
611 writel( card->regs.besctl, card->mmio_base + BESCTL);
612 if(card->is_g400)
613 writel( card->regs.beslumactl, card->mmio_base + BESLUMACTL);
614 writel( card->regs.bespitch, card->mmio_base + BESPITCH);
615
616 writel( card->regs.besa1org, card->mmio_base + BESA1ORG);
617 writel( card->regs.besa1corg, card->mmio_base + BESA1CORG);
618 writel( card->regs.besa2org, card->mmio_base + BESA2ORG);
619 writel( card->regs.besa2corg, card->mmio_base + BESA2CORG);
620 writel( card->regs.besb1org, card->mmio_base + BESB1ORG);
621 writel( card->regs.besb1corg, card->mmio_base + BESB1CORG);
622 writel( card->regs.besb2org, card->mmio_base + BESB2ORG);
623 writel( card->regs.besb2corg, card->mmio_base + BESB2CORG);
624 if(card->is_g400)
625 {
626 writel( card->regs.besa1c3org, card->mmio_base + BESA1C3ORG);
627 writel( card->regs.besa2c3org, card->mmio_base + BESA2C3ORG);
628 writel( card->regs.besb1c3org, card->mmio_base + BESB1C3ORG);
629 writel( card->regs.besb2c3org, card->mmio_base + BESB2C3ORG);
630 }
631
632 writel( card->regs.beshcoord, card->mmio_base + BESHCOORD);
633 writel( card->regs.beshiscal, card->mmio_base + BESHISCAL);
634 writel( card->regs.beshsrcst, card->mmio_base + BESHSRCST);
635 writel( card->regs.beshsrcend, card->mmio_base + BESHSRCEND);
636 writel( card->regs.beshsrclst, card->mmio_base + BESHSRCLST);
637
638 writel( card->regs.besvcoord, card->mmio_base + BESVCOORD);
639 writel( card->regs.besviscal, card->mmio_base + BESVISCAL);
640
641 writel( card->regs.besv1srclst, card->mmio_base + BESV1SRCLST);
642 writel( card->regs.besv1wght, card->mmio_base + BESV1WGHT);
643 writel( card->regs.besv2srclst, card->mmio_base + BESV2SRCLST);
644 writel( card->regs.besv2wght, card->mmio_base + BESV2WGHT);
645
646 //update the registers somewhere between 1 and 2 frames from now.
647 writel( card->regs.besglobctl + ((readl(card->mmio_base + VCOUNT)+2)<<16),
648 card->mmio_base + BESGLOBCTL);
649
650 #if 0
651 printk(KERN_DEBUG "mga_vid: wrote BES registers\n");
652 printk(KERN_DEBUG "mga_vid: BESCTL = 0x%08x\n",
653 readl(card->mmio_base + BESCTL));
654 printk(KERN_DEBUG "mga_vid: BESGLOBCTL = 0x%08x\n",
655 readl(card->mmio_base + BESGLOBCTL));
656 printk(KERN_DEBUG "mga_vid: BESSTATUS= 0x%08x\n",
657 readl(card->mmio_base + BESSTATUS));
658 #endif
659 #ifdef CRTC2
660 // printk("c2ctl:0x%08x c2datactl:0x%08x\n", readl(card->mmio_base + C2CTL), readl(card->mmio_base + C2DATACTL));
661 // printk("c2misc:0x%08x\n", readl(card->mmio_base + C2MISC));
662 // printk("c2ctl:0x%08x c2datactl:0x%08x\n", card->cregs.c2ctl, card->cregs.c2datactl);
663
664 // writel(card->cregs.c2ctl, card->mmio_base + C2CTL);
665
666 writel(((readl(card->mmio_base + C2CTL) & ~0x03e00000) + (card->cregs.c2ctl & 0x03e00000)), card->mmio_base + C2CTL);
667 writel(((readl(card->mmio_base + C2DATACTL) & ~0x000000ff) + (card->cregs.c2datactl & 0x000000ff)), card->mmio_base + C2DATACTL);
668 // ctrc2
669 // disable CRTC2 acording to specs
670 // writel(card->cregs.c2ctl & 0xfffffff0, card->mmio_base + C2CTL);
671 // je to treba ???
672 // writeb((readb(card->mmio_base + XMISCCTRL) & 0x19) | 0xa2, card->mmio_base + XMISCCTRL); // MAFC - mfcsel & vdoutsel
673 // writeb((readb(card->mmio_base + XMISCCTRL) & 0x19) | 0x92, card->mmio_base + XMISCCTRL);
674 // writeb((readb(card->mmio_base + XMISCCTRL) & ~0xe9) + 0xa2, card->mmio_base + XMISCCTRL);
675 // writel(card->cregs.c2datactl, card->mmio_base + C2DATACTL);
676 // writel(card->cregs.c2hparam, card->mmio_base + C2HPARAM);
677 // writel(card->cregs.c2hsync, card->mmio_base + C2HSYNC);
678 // writel(card->cregs.c2vparam, card->mmio_base + C2VPARAM);
679 // writel(card->cregs.c2vsync, card->mmio_base + C2VSYNC);
680 writel(card->cregs.c2misc, card->mmio_base + C2MISC);
681
682 #ifdef MP_DEBUG
683 printk("c2offset = %d\n",card->cregs.c2offset);
684 #endif
685
686 writel(card->cregs.c2offset, card->mmio_base + C2OFFSET);
687 writel(card->cregs.c2startadd0, card->mmio_base + C2STARTADD0);
688 // writel(card->cregs.c2startadd1, card->mmio_base + C2STARTADD1);
689 writel(card->cregs.c2pl2startadd0, card->mmio_base + C2PL2STARTADD0);
690 // writel(card->cregs.c2pl2startadd1, card->mmio_base + C2PL2STARTADD1);
691 writel(card->cregs.c2pl3startadd0, card->mmio_base + C2PL3STARTADD0);
692 // writel(card->cregs.c2pl3startadd1, card->mmio_base + C2PL3STARTADD1);
693 writel(card->cregs.c2spicstartadd0, card->mmio_base + C2SPICSTARTADD0);
694 // writel(card->cregs.c2spicstartadd1, card->mmio_base + C2SPICSTARTADD1);
695 // writel(card->cregs.c2subpiclut, card->mmio_base + C2SUBPICLUT);
696 // writel(card->cregs.c2preload, card->mmio_base + C2PRELOAD);
697 // finaly enable everything
698 // writel(card->cregs.c2ctl, card->mmio_base + C2CTL);
699 // printk("c2ctl:0x%08x c2datactl:0x%08x\n",readl(card->mmio_base + C2CTL),readl(card->mmio_base + C2DATACTL));
700 // printk("c2misc:0x%08x\n", readl(card->mmio_base + C2MISC));
701 #endif
702 }
703
mga_vid_set_config(mga_card_t * card)704 static int mga_vid_set_config(mga_card_t * card)
705 {
706 int x, y, sw, sh, dw, dh;
707 int besleft, bestop, ifactor, ofsleft, ofstop, baseadrofs, weight, weights;
708 mga_vid_config_t *config = &card->config;
709 int frame_size = card->config.frame_size;
710
711 #ifdef CRTC2
712 #define right_margin 0
713 #define left_margin 18
714 #define hsync_len 46
715 #define lower_margin 10
716 #define vsync_len 4
717 #define upper_margin 39
718
719 unsigned int hdispend = (config->src_width + 31) & ~31;
720 unsigned int hsyncstart = hdispend + (right_margin & ~7);
721 unsigned int hsyncend = hsyncstart + (hsync_len & ~7);
722 unsigned int htotal = hsyncend + (left_margin & ~7);
723 unsigned int vdispend = config->src_height;
724 unsigned int vsyncstart = vdispend + lower_margin;
725 unsigned int vsyncend = vsyncstart + vsync_len;
726 unsigned int vtotal = vsyncend + upper_margin;
727 #endif
728 x = config->x_org;
729 y = config->y_org;
730 sw = config->src_width;
731 sh = config->src_height;
732 dw = config->dest_width;
733 dh = config->dest_height;
734
735 #ifdef MP_DEBUG
736 printk(KERN_DEBUG "mga_vid: Setting up a %dx%d+%d+%d video window (src %dx%d) format %X\n",
737 dw, dh, x, y, sw, sh, config->format);
738 #endif
739
740 if(sw<4 || sh<4 || dw<4 || dh<4){
741 printk(KERN_ERR "mga_vid: Invalid src/dest dimenstions\n");
742 return -1;
743 }
744
745 //FIXME check that window is valid and inside desktop
746
747 //Setup the BES registers for a three plane 4:2:0 video source
748
749 card->regs.besglobctl = 0;
750
751 switch(config->format){
752 case MGA_VID_FORMAT_YV12:
753 case MGA_VID_FORMAT_I420:
754 case MGA_VID_FORMAT_IYUV:
755 card->regs.besctl = 1 // BES enabled
756 + (0<<6) // even start polarity
757 + (1<<10) // x filtering enabled
758 + (1<<11) // y filtering enabled
759 + (1<<16) // chroma upsampling
760 + (1<<17) // 4:2:0 mode
761 + (1<<18); // dither enabled
762 #if 0
763 if(card->is_g400)
764 {
765 //zoom disabled, zoom filter disabled, 420 3 plane format, proc amp
766 //disabled, rgb mode disabled
767 card->regs.besglobctl = (1<<5);
768 }
769 else
770 {
771 //zoom disabled, zoom filter disabled, Cb samples in 0246, Cr
772 //in 1357, BES register update on besvcnt
773 card->regs.besglobctl = 0;
774 }
775 #endif
776 break;
777
778 case MGA_VID_FORMAT_YUY2:
779 card->regs.besctl = 1 // BES enabled
780 + (0<<6) // even start polarity
781 + (1<<10) // x filtering enabled
782 + (1<<11) // y filtering enabled
783 + (1<<16) // chroma upsampling
784 + (0<<17) // 4:2:2 mode
785 + (1<<18); // dither enabled
786
787 card->regs.besglobctl = 0; // YUY2 format selected
788 break;
789
790 case MGA_VID_FORMAT_UYVY:
791 card->regs.besctl = 1 // BES enabled
792 + (0<<6) // even start polarity
793 + (1<<10) // x filtering enabled
794 + (1<<11) // y filtering enabled
795 + (1<<16) // chroma upsampling
796 + (0<<17) // 4:2:2 mode
797 + (1<<18); // dither enabled
798
799 card->regs.besglobctl = 1<<6; // UYVY format selected
800 break;
801
802 default:
803 printk(KERN_ERR "mga_vid: Unsupported pixel format: 0x%X\n",config->format);
804 return -1;
805 }
806
807 // setting black&white mode
808 card->regs.besctl|=(card->regs.blackie<<20);
809
810 //Enable contrast and brightness control
811 card->regs.besglobctl |= (1<<5) + (1<<7);
812
813 // brightness (-128..127) && contrast (0..255)
814 card->regs.beslumactl = (card->brightness << 16) | ((card->contrast+0x80)&0xFFFF);
815
816 //Setup destination window boundaries
817 besleft = x > 0 ? x : 0;
818 bestop = y > 0 ? y : 0;
819 card->regs.beshcoord = (besleft<<16) + (x + dw-1);
820 card->regs.besvcoord = (bestop<<16) + (y + dh-1);
821
822 //Setup source dimensions
823 card->regs.beshsrclst = (sw - 1) << 16;
824 card->regs.bespitch = (sw + 31) & ~31 ;
825
826 //Setup horizontal scaling
827 ifactor = ((sw-1)<<14)/(dw-1);
828 ofsleft = besleft - x;
829
830 card->regs.beshiscal = ifactor<<2;
831 card->regs.beshsrcst = (ofsleft*ifactor)<<2;
832 card->regs.beshsrcend = card->regs.beshsrcst + (((dw - ofsleft - 1) * ifactor) << 2);
833
834 //Setup vertical scaling
835 ifactor = ((sh-1)<<14)/(dh-1);
836 ofstop = bestop - y;
837
838 card->regs.besviscal = ifactor<<2;
839
840 baseadrofs = ( (ofstop * card->regs.besviscal) >>16) * card->regs.bespitch;
841 //frame_size = ((sw + 31) & ~31) * sh + (((sw + 31) & ~31) * sh) / 2;
842 card->regs.besa1org = (uint32_t) card->src_base + baseadrofs;
843 card->regs.besa2org = (uint32_t) card->src_base + baseadrofs + 1*frame_size;
844 card->regs.besb1org = (uint32_t) card->src_base + baseadrofs + 2*frame_size;
845 card->regs.besb2org = (uint32_t) card->src_base + baseadrofs + 3*frame_size;
846
847 if(config->format==MGA_VID_FORMAT_YV12
848 ||config->format==MGA_VID_FORMAT_IYUV
849 ||config->format==MGA_VID_FORMAT_I420
850 ){
851 // planar YUV frames:
852 if (card->is_g400)
853 baseadrofs = ( ( (ofstop * card->regs.besviscal ) / 4 ) >> 16 ) * card->regs.bespitch;
854 else
855 baseadrofs = ( ( ( ofstop * card->regs.besviscal ) / 2 ) >> 16 ) * card->regs.bespitch;
856
857 if(config->format==MGA_VID_FORMAT_YV12 || !card->is_g400){
858 card->regs.besa1corg = (uint32_t) card->src_base + baseadrofs + card->regs.bespitch * sh ;
859 card->regs.besa2corg = (uint32_t) card->src_base + baseadrofs + 1*frame_size + card->regs.bespitch * sh;
860 card->regs.besb1corg = (uint32_t) card->src_base + baseadrofs + 2*frame_size + card->regs.bespitch * sh;
861 card->regs.besb2corg = (uint32_t) card->src_base + baseadrofs + 3*frame_size + card->regs.bespitch * sh;
862 card->regs.besa1c3org = card->regs.besa1corg + ( (card->regs.bespitch * sh) / 4);
863 card->regs.besa2c3org = card->regs.besa2corg + ( (card->regs.bespitch * sh) / 4);
864 card->regs.besb1c3org = card->regs.besb1corg + ( (card->regs.bespitch * sh) / 4);
865 card->regs.besb2c3org = card->regs.besb2corg + ( (card->regs.bespitch * sh) / 4);
866 } else {
867 card->regs.besa1c3org = (uint32_t) card->src_base + baseadrofs + card->regs.bespitch * sh ;
868 card->regs.besa2c3org = (uint32_t) card->src_base + baseadrofs + 1*frame_size + card->regs.bespitch * sh;
869 card->regs.besb1c3org = (uint32_t) card->src_base + baseadrofs + 2*frame_size + card->regs.bespitch * sh;
870 card->regs.besb2c3org = (uint32_t) card->src_base + baseadrofs + 3*frame_size + card->regs.bespitch * sh;
871 card->regs.besa1corg = card->regs.besa1c3org + ((card->regs.bespitch * sh) / 4);
872 card->regs.besa2corg = card->regs.besa2c3org + ((card->regs.bespitch * sh) / 4);
873 card->regs.besb1corg = card->regs.besb1c3org + ((card->regs.bespitch * sh) / 4);
874 card->regs.besb2corg = card->regs.besb2c3org + ((card->regs.bespitch * sh) / 4);
875 }
876 }
877
878 weight = ofstop * (card->regs.besviscal >> 2);
879 weights = weight < 0 ? 1 : 0;
880 card->regs.besv2wght = card->regs.besv1wght = (weights << 16) + ((weight & 0x3FFF) << 2);
881 card->regs.besv2srclst = card->regs.besv1srclst = sh - 1 - (((ofstop * card->regs.besviscal) >> 16) & 0x03FF);
882
883 #ifdef CRTC2
884 // pridat hlavni registry - tj. casovani ...
885
886
887 switch(config->format){
888 case MGA_VID_FORMAT_YV12:
889 case MGA_VID_FORMAT_I420:
890 case MGA_VID_FORMAT_IYUV:
891 card->cregs.c2ctl = 1 // CRTC2 enabled
892 + (1<<1) // external clock
893 + (0<<2) // external clock
894 + (1<<3) // pixel clock enable - not needed ???
895 + (0<<4) // high prioryty req
896 + (1<<5) // high prioryty req
897 + (0<<6) // high prioryty req
898 + (1<<8) // high prioryty req max
899 + (0<<9) // high prioryty req max
900 + (0<<10) // high prioryty req max
901 + (0<<20) // CRTC1 to DAC
902 + (1<<21) // 420 mode
903 + (1<<22) // 420 mode
904 + (1<<23) // 420 mode
905 + (0<<24) // single chroma line for 420 mode - need to be corrected
906 + (0<<25) /*/ interlace mode - need to be corrected*/
907 + (0<<26) // field legth polariry
908 + (0<<27) // field identification polariry
909 + (1<<28) // VIDRST detection mode
910 + (0<<29) // VIDRST detection mode
911 + (1<<30) // Horizontal counter preload
912 + (1<<31) // Vertical counter preload
913 ;
914 card->cregs.c2datactl = 1 // disable dither - propably not needed, we are already in YUV mode
915 + (1<<1) // Y filter enable
916 + (1<<2) // CbCr filter enable
917 + (0<<3) // subpicture enable (disabled)
918 + (0<<4) // NTSC enable (disabled - PAL)
919 + (0<<5) // C2 static subpicture enable (disabled)
920 + (0<<6) // C2 subpicture offset division (disabled)
921 + (0<<7) // 422 subformat selection !
922 /* + (0<<8) // 15 bpp high alpha
923 + (0<<9) // 15 bpp high alpha
924 + (0<<10) // 15 bpp high alpha
925 + (0<<11) // 15 bpp high alpha
926 + (0<<12) // 15 bpp high alpha
927 + (0<<13) // 15 bpp high alpha
928 + (0<<14) // 15 bpp high alpha
929 + (0<<15) // 15 bpp high alpha
930 + (0<<16) // 15 bpp low alpha
931 + (0<<17) // 15 bpp low alpha
932 + (0<<18) // 15 bpp low alpha
933 + (0<<19) // 15 bpp low alpha
934 + (0<<20) // 15 bpp low alpha
935 + (0<<21) // 15 bpp low alpha
936 + (0<<22) // 15 bpp low alpha
937 + (0<<23) // 15 bpp low alpha
938 + (0<<24) // static subpicture key
939 + (0<<25) // static subpicture key
940 + (0<<26) // static subpicture key
941 + (0<<27) // static subpicture key
942 + (0<<28) // static subpicture key
943 */ ;
944 break;
945
946 case MGA_VID_FORMAT_YUY2:
947 card->cregs.c2ctl = 1 // CRTC2 enabled
948 + (1<<1) // external clock
949 + (0<<2) // external clock
950 + (1<<3) // pixel clock enable - not needed ???
951 + (0<<4) // high prioryty req - acc to spec
952 + (1<<5) // high prioryty req
953 + (0<<6) // high prioryty req
954 // 7 reserved
955 + (1<<8) // high prioryty req max
956 + (0<<9) // high prioryty req max
957 + (0<<10) // high prioryty req max
958 // 11-19 reserved
959 + (0<<20) // CRTC1 to DAC
960 + (1<<21) // 422 mode
961 + (0<<22) // 422 mode
962 + (1<<23) // 422 mode
963 + (0<<24) // single chroma line for 420 mode - need to be corrected
964 + (0<<25) /*/ interlace mode - need to be corrected*/
965 + (0<<26) // field legth polariry
966 + (0<<27) // field identification polariry
967 + (1<<28) // VIDRST detection mode
968 + (0<<29) // VIDRST detection mode
969 + (1<<30) // Horizontal counter preload
970 + (1<<31) // Vertical counter preload
971 ;
972 card->cregs.c2datactl = 1 // disable dither - propably not needed, we are already in YUV mode
973 + (1<<1) // Y filter enable
974 + (1<<2) // CbCr filter enable
975 + (0<<3) // subpicture enable (disabled)
976 + (0<<4) // NTSC enable (disabled - PAL)
977 + (0<<5) // C2 static subpicture enable (disabled)
978 + (0<<6) // C2 subpicture offset division (disabled)
979 + (0<<7) // 422 subformat selection !
980 /* + (0<<8) // 15 bpp high alpha
981 + (0<<9) // 15 bpp high alpha
982 + (0<<10) // 15 bpp high alpha
983 + (0<<11) // 15 bpp high alpha
984 + (0<<12) // 15 bpp high alpha
985 + (0<<13) // 15 bpp high alpha
986 + (0<<14) // 15 bpp high alpha
987 + (0<<15) // 15 bpp high alpha
988 + (0<<16) // 15 bpp low alpha
989 + (0<<17) // 15 bpp low alpha
990 + (0<<18) // 15 bpp low alpha
991 + (0<<19) // 15 bpp low alpha
992 + (0<<20) // 15 bpp low alpha
993 + (0<<21) // 15 bpp low alpha
994 + (0<<22) // 15 bpp low alpha
995 + (0<<23) // 15 bpp low alpha
996 + (0<<24) // static subpicture key
997 + (0<<25) // static subpicture key
998 + (0<<26) // static subpicture key
999 + (0<<27) // static subpicture key
1000 + (0<<28) // static subpicture key
1001 */ ;
1002 break;
1003
1004 case MGA_VID_FORMAT_UYVY:
1005 card->cregs.c2ctl = 1 // CRTC2 enabled
1006 + (1<<1) // external clock
1007 + (0<<2) // external clock
1008 + (1<<3) // pixel clock enable - not needed ???
1009 + (0<<4) // high prioryty req
1010 + (1<<5) // high prioryty req
1011 + (0<<6) // high prioryty req
1012 + (1<<8) // high prioryty req max
1013 + (0<<9) // high prioryty req max
1014 + (0<<10) // high prioryty req max
1015 + (0<<20) // CRTC1 to DAC
1016 + (1<<21) // 422 mode
1017 + (0<<22) // 422 mode
1018 + (1<<23) // 422 mode
1019 + (1<<24) // single chroma line for 420 mode - need to be corrected
1020 + (1<<25) /*/ interlace mode - need to be corrected*/
1021 + (0<<26) // field legth polariry
1022 + (0<<27) // field identification polariry
1023 + (1<<28) // VIDRST detection mode
1024 + (0<<29) // VIDRST detection mode
1025 + (1<<30) // Horizontal counter preload
1026 + (1<<31) // Vertical counter preload
1027 ;
1028 card->cregs.c2datactl = 0 // enable dither - propably not needed, we are already in YUV mode
1029 + (1<<1) // Y filter enable
1030 + (1<<2) // CbCr filter enable
1031 + (0<<3) // subpicture enable (disabled)
1032 + (0<<4) // NTSC enable (disabled - PAL)
1033 + (0<<5) // C2 static subpicture enable (disabled)
1034 + (0<<6) // C2 subpicture offset division (disabled)
1035 + (1<<7) // 422 subformat selection !
1036 /* + (0<<8) // 15 bpp high alpha
1037 + (0<<9) // 15 bpp high alpha
1038 + (0<<10) // 15 bpp high alpha
1039 + (0<<11) // 15 bpp high alpha
1040 + (0<<12) // 15 bpp high alpha
1041 + (0<<13) // 15 bpp high alpha
1042 + (0<<14) // 15 bpp high alpha
1043 + (0<<15) // 15 bpp high alpha
1044 + (0<<16) // 15 bpp low alpha
1045 + (0<<17) // 15 bpp low alpha
1046 + (0<<18) // 15 bpp low alpha
1047 + (0<<19) // 15 bpp low alpha
1048 + (0<<20) // 15 bpp low alpha
1049 + (0<<21) // 15 bpp low alpha
1050 + (0<<22) // 15 bpp low alpha
1051 + (0<<23) // 15 bpp low alpha
1052 + (0<<24) // static subpicture key
1053 + (0<<25) // static subpicture key
1054 + (0<<26) // static subpicture key
1055 + (0<<27) // static subpicture key
1056 + (0<<28) // static subpicture key
1057 */ ;
1058 break;
1059
1060 default:
1061 printk(KERN_ERR "mga_vid: Unsupported pixel format: 0x%X\n",config->format);
1062 return -1;
1063 }
1064
1065 card->cregs.c2hparam = ( (hdispend - 8) << 16) | (htotal - 8);
1066 card->cregs.c2hsync = ( (hsyncend - 8) << 16) | (hsyncstart - 8);
1067
1068 card->cregs.c2misc = 0 // CRTCV2 656 togg f0
1069 + (0<<1) // CRTCV2 656 togg f0
1070 + (0<<2) // CRTCV2 656 togg f0
1071 + (0<<4) // CRTCV2 656 togg f1
1072 + (0<<5) // CRTCV2 656 togg f1
1073 + (0<<6) // CRTCV2 656 togg f1
1074 + (0<<8) // Hsync active high
1075 + (0<<9) // Vsync active high
1076 // 16-27 c2vlinecomp - nevim co tam dat
1077 ;
1078 card->cregs.c2offset=(card->regs.bespitch << 1);
1079
1080 card->cregs.c2pl2startadd0=card->regs.besa1corg;
1081 // card->cregs.c2pl2startadd1=card->regs.besa2corg;
1082 card->cregs.c2pl3startadd0=card->regs.besa1c3org;
1083 // card->cregs.c2pl3startadd1=card->regs.besa2c3org;
1084
1085 card->cregs.c2preload=(vsyncstart << 16) | (hsyncstart); // from
1086
1087 card->cregs.c2spicstartadd0=0; // not used
1088 // card->cregs.c2spicstartadd1=0; // not used
1089
1090 card->cregs.c2startadd0=card->regs.besa1org;
1091 // card->cregs.c2startadd1=card->regs.besa2org;
1092
1093 card->cregs.c2subpiclut=0; //not used
1094
1095 card->cregs.c2vparam = ( (vdispend - 1) << 16) | (vtotal - 1);
1096 card->cregs.c2vsync = ( (vsyncend - 1) << 16) | (vsyncstart - 1);
1097
1098
1099 #endif
1100
1101 mga_vid_write_regs(card, 0);
1102 return 0;
1103 }
1104
1105 #ifdef MGA_ALLOW_IRQ
1106
enable_irq(mga_card_t * card)1107 static void enable_irq(mga_card_t * card){
1108 long int cc;
1109
1110 cc = readl(card->mmio_base + IEN);
1111 // printk(KERN_ALERT "*** !!! IRQREG = %d\n", (int)(cc&0xff));
1112
1113 writeb(0x11, card->mmio_base + CRTCX);
1114
1115 writeb(0x20, card->mmio_base + CRTCD); /* clear 0, enable off */
1116 writeb(0x00, card->mmio_base + CRTCD); /* enable on */
1117 writeb(0x10, card->mmio_base + CRTCD); /* clear = 1 */
1118
1119 writel(card->regs.besglobctl , card->mmio_base + BESGLOBCTL);
1120 }
1121
disable_irq(mga_card_t * card)1122 static void disable_irq(mga_card_t * card){
1123 writeb(0x11, card->mmio_base + CRTCX);
1124 writeb(0x20, card->mmio_base + CRTCD); /* clear 0, enable off */
1125 }
1126
mga_handle_irq(int irq,void * dev_id,struct pt_regs * pregs)1127 static void mga_handle_irq(int irq, void *dev_id, struct pt_regs *pregs) {
1128 // static int frame=0;
1129 // static int counter=0;
1130 long int cc;
1131 mga_card_t * card = dev_id;
1132
1133 // printk(KERN_DEBUG "vcount = %d\n",readl(mga_mmio_base + VCOUNT));
1134
1135 //printk("mga_interrupt #%d\n", irq);
1136
1137 // check whether the interrupt is really for us (irq sharing)
1138 if ( irq != -1 ) {
1139 cc = readl(card->mmio_base + STATUS);
1140 if ( ! (cc & 0x10) ) return; /* vsyncpen */
1141 // debug_irqcnt++;
1142 }
1143
1144 // if ( debug_irqignore ) {
1145 // debug_irqignore = 0;
1146
1147 // frame=(frame+1)&1;
1148 card->regs.besctl = (card->regs.besctl & ~0x07000000) + (card->next_frame << 25);
1149 writel( card->regs.besctl, card->mmio_base + BESCTL );
1150
1151 #ifdef CRTC2
1152 // sem pridat vyber obrazku !!!!
1153 // i han echt kei ahnig was das obe heisse söll
1154 crtc2_frame_sel(card->next_frame);
1155 #endif
1156
1157 #if 0
1158 ++counter;
1159 if(!(counter&63)){
1160 printk("mga irq counter = %d\n",counter);
1161 }
1162 #endif
1163
1164 // } else {
1165 // debug_irqignore = 1;
1166 // }
1167
1168 if ( irq != -1 ) {
1169 writeb( 0x11, card->mmio_base + CRTCX);
1170 writeb( 0, card->mmio_base + CRTCD );
1171 writeb( 0x10, card->mmio_base + CRTCD );
1172 }
1173
1174 // writel( card->regs.besglobctl, card->mmio_base + BESGLOBCTL);
1175
1176 return;
1177 }
1178
1179 #endif
1180
mga_vid_ioctl(struct inode * inode,struct file * file,unsigned int cmd,unsigned long arg)1181 static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1182 {
1183 int frame, result;
1184 uint32_t tmp;
1185 mga_card_t * card = (mga_card_t *) file->private_data;
1186
1187 switch(cmd)
1188 {
1189 case MGA_VID_GET_VERSION:
1190 tmp = MGA_VID_VERSION;
1191 if (copy_to_user((uint32_t *) arg, &tmp, sizeof(uint32_t))) {
1192 printk(KERN_ERR "mga_vid: failed copy %p to userspace %p\n", &tmp, (uint32_t *) arg);
1193 return -EFAULT;
1194 }
1195 break;
1196
1197 case MGA_VID_CONFIG:
1198 //FIXME remove
1199 // printk(KERN_DEBUG "mga_vid: vcount = %d\n",readl(card->mmio_base + VCOUNT));
1200 #ifdef MP_DEBUG
1201 printk(KERN_DEBUG "mga_vid: mmio_base = %p\n",card->mmio_base);
1202 printk(KERN_DEBUG "mga_vid: mem_base = %08x\n",card->mem_base);
1203 //FIXME remove
1204
1205 printk(KERN_DEBUG "mga_vid: Received configuration\n");
1206 #endif
1207
1208 if(copy_from_user(&card->config,(mga_vid_config_t*) arg,sizeof(mga_vid_config_t)))
1209 {
1210 printk(KERN_ERR "mga_vid: failed copy from userspace\n");
1211 return -EFAULT;
1212 }
1213 if(card->config.version != MGA_VID_VERSION){
1214 printk(KERN_ERR "mga_vid: incompatible version! driver: %X requested: %X\n",MGA_VID_VERSION,card->config.version);
1215 return -EFAULT;
1216 }
1217
1218 if(card->config.frame_size==0 || card->config.frame_size>1024*768*2){
1219 printk(KERN_ERR "mga_vid: illegal frame_size: %d\n",card->config.frame_size);
1220 return -EFAULT;
1221 }
1222
1223 if(card->config.num_frames<1 || card->config.num_frames>4){
1224 printk(KERN_ERR "mga_vid: illegal num_frames: %d\n",card->config.num_frames);
1225 return -EFAULT;
1226 }
1227
1228 card->src_base = (card->ram_size * 0x100000 - card->config.num_frames * card->config.frame_size - card->top_reserved);
1229 if(card->src_base<0){
1230 printk(KERN_ERR "mga_vid: not enough memory for frames!\n");
1231 return -EFAULT;
1232 }
1233 card->src_base &= (~0xFFFF); // 64k boundary
1234 #ifdef MP_DEBUG
1235 printk(KERN_DEBUG "mga YUV buffer base: 0x%X\n", card->src_base);
1236 #endif
1237
1238 if (card->is_g400)
1239 card->config.card_type = MGA_G400;
1240 else
1241 card->config.card_type = MGA_G200;
1242
1243 card->config.ram_size = card->ram_size;
1244
1245 if (copy_to_user((mga_vid_config_t *) arg, &card->config, sizeof(mga_vid_config_t)))
1246 {
1247 printk(KERN_ERR "mga_vid: failed copy to userspace\n");
1248 return -EFAULT;
1249 }
1250
1251 result = mga_vid_set_config(card);
1252 if(!result) card->configured=1;
1253 return result;
1254 break;
1255
1256 case MGA_VID_ON:
1257 #ifdef MP_DEBUG
1258 printk(KERN_DEBUG "mga_vid: Video ON\n");
1259 #endif
1260 card->vid_src_ready = 1;
1261 if(card->vid_overlay_on)
1262 {
1263 card->regs.besctl |= 1;
1264 mga_vid_write_regs(card, 0);
1265 }
1266 #ifdef MGA_ALLOW_IRQ
1267 if ( card->irq != -1 ) enable_irq(card);
1268 #endif
1269 card->next_frame=0;
1270 break;
1271
1272 case MGA_VID_OFF:
1273 #ifdef MP_DEBUG
1274 printk(KERN_DEBUG "mga_vid: Video OFF (ioctl)\n");
1275 #endif
1276 card->vid_src_ready = 0;
1277 #ifdef MGA_ALLOW_IRQ
1278 if ( card->irq != -1 ) disable_irq(card);
1279 #endif
1280 card->regs.besctl &= ~1;
1281 card->regs.besglobctl &= ~(1<<6); // UYVY format selected
1282 mga_vid_write_regs(card, 0);
1283 break;
1284
1285 case MGA_VID_FSEL:
1286 if(copy_from_user(&frame,(int *) arg,sizeof(int)))
1287 {
1288 printk(KERN_ERR "mga_vid: FSEL failed copy from userspace\n");
1289 return -EFAULT;
1290 }
1291
1292 mga_vid_frame_sel(card, frame);
1293 break;
1294
1295 case MGA_VID_GET_LUMA:
1296 //tmp = card->regs.beslumactl;
1297 //tmp = (tmp&0xFFFF0000) | (((tmp&0xFFFF) - 0x80)&0xFFFF);
1298 tmp = (card->brightness << 16) | (card->contrast&0xFFFF);
1299
1300 if (copy_to_user((uint32_t *) arg, &tmp, sizeof(uint32_t)))
1301 {
1302 printk(KERN_ERR "mga_vid: failed copy %p to userspace %p\n",
1303 &tmp, (uint32_t *) arg);
1304 return -EFAULT;
1305 }
1306 break;
1307
1308 case MGA_VID_SET_LUMA:
1309 tmp = arg;
1310 card->brightness=tmp>>16; card->contrast=tmp&0xFFFF;
1311 //card->regs.beslumactl = (tmp&0xFFFF0000) | ((tmp + 0x80)&0xFFFF);
1312 card->regs.beslumactl = (card->brightness << 16) | ((card->contrast+0x80)&0xFFFF);
1313 mga_vid_write_regs(card, 0);
1314 break;
1315
1316 default:
1317 printk(KERN_ERR "mga_vid: Invalid ioctl\n");
1318 return -EINVAL;
1319 }
1320
1321 return 0;
1322 }
1323
1324 static void cards_init(mga_card_t * card, struct pci_dev * dev, int card_number, int is_g400);
1325
1326 // returns the number of found cards
mga_vid_find_card(void)1327 static int mga_vid_find_card(void)
1328 {
1329 struct pci_dev *dev = NULL;
1330 char *mga_dev_name;
1331 mga_card_t * card;
1332
1333 while((dev = pci_find_device(PCI_VENDOR_ID_MATROX, PCI_ANY_ID, dev)))
1334 {
1335 mga_dev_name = "";
1336 mga_cards_num++;
1337 if(mga_cards_num == MGA_MAX_CARDS)
1338 {
1339 printk(KERN_WARNING "mga_vid: Trying to initialize more than %d cards\n",MGA_MAX_CARDS);
1340 mga_cards_num--;
1341 break;
1342 }
1343
1344 card = kmalloc(sizeof(mga_card_t), GFP_KERNEL);
1345 if(!card)
1346 {
1347 printk(KERN_ERR "mga_vid: memory allocation failed\n");
1348 mga_cards_num--;
1349 break;
1350 }
1351
1352 mga_cards[mga_cards_num - 1] = card;
1353
1354 switch(dev->device) {
1355 case PCI_DEVICE_ID_MATROX_G550:
1356 mga_dev_name = "MGA G550";
1357 printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
1358 cards_init(card, dev, mga_cards_num - 1, 1);
1359 break;
1360 case PCI_DEVICE_ID_MATROX_G400:
1361 mga_dev_name = "MGA G400/G450";
1362 printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
1363 cards_init(card, dev, mga_cards_num - 1, 1);
1364 break;
1365 case PCI_DEVICE_ID_MATROX_G200_AGP:
1366 mga_dev_name = "MGA G200 AGP";
1367 printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
1368 cards_init(card, dev, mga_cards_num - 1, 0);
1369 break;
1370 case PCI_DEVICE_ID_MATROX_G200_PCI:
1371 mga_dev_name = "MGA G200";
1372 printk(KERN_INFO "mga_vid: Found %s at %s [%s]\n", mga_dev_name, dev->slot_name, dev->name);
1373 cards_init(card, dev, mga_cards_num - 1, 0);
1374 break;
1375 default:
1376 mga_cards_num--;
1377 printk(KERN_INFO "mga_vid: ignoring matrox device (%d) at %s [%s]\n", dev->device, dev->slot_name, dev->name);
1378 break;
1379 }
1380 }
1381
1382 if(!mga_cards_num)
1383 {
1384 printk(KERN_ERR "mga_vid: No supported cards found\n");
1385 } else {
1386 printk(KERN_INFO "mga_vid: %d supported cards found\n", mga_cards_num);
1387 }
1388
1389 return mga_cards_num;
1390 }
1391
mga_param_buff_fill(mga_card_t * card)1392 static void mga_param_buff_fill( mga_card_t * card )
1393 {
1394 unsigned len;
1395 unsigned size = card->param_buff_size;
1396 char * buf = card->param_buff;
1397 len = 0;
1398 len += snprintf(&buf[len],size-len,"Interface version: %04X\n",MGA_VID_VERSION);
1399 len += snprintf(&buf[len],size-len,"Memory: %x:%dM\n",card->mem_base,(unsigned int) card->ram_size);
1400 len += snprintf(&buf[len],size-len,"MMIO: %p\n",card->mmio_base);
1401 len += snprintf(&buf[len],size-len,"Configurable stuff:\n");
1402 len += snprintf(&buf[len],size-len,"~~~~~~~~~~~~~~~~~~~\n");
1403 len += snprintf(&buf[len],size-len,PARAM_BRIGHTNESS"%d\n",card->brightness);
1404 len += snprintf(&buf[len],size-len,PARAM_CONTRAST"%d\n",card->contrast);
1405 len += snprintf(&buf[len],size-len,PARAM_BLACKIE"%s\n",card->regs.blackie?"on":"off");
1406 card->param_buff_len = len;
1407 // check boundaries of mga_param_buff before writing to it!!!
1408 }
1409
1410
mga_vid_read(struct file * file,char * buf,size_t count,loff_t * ppos)1411 static ssize_t mga_vid_read(struct file *file, char *buf, size_t count, loff_t *ppos)
1412 {
1413 uint32_t size;
1414 mga_card_t * card = (mga_card_t *) file->private_data;
1415
1416 if(!card->param_buff) return -ESPIPE;
1417 if(!(*ppos)) mga_param_buff_fill(card);
1418 if(*ppos >= card->param_buff_len) return 0;
1419 size = min(count,card->param_buff_len-(uint32_t)(*ppos));
1420 memcpy(buf,card->param_buff,size);
1421 *ppos += size;
1422 return size;
1423 }
1424
mga_vid_write(struct file * file,const char * buf,size_t count,loff_t * ppos)1425 static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
1426 {
1427 mga_card_t * card = (mga_card_t *) file->private_data;
1428
1429 if(memcmp(buf,PARAM_BRIGHTNESS,min(count,strlen(PARAM_BRIGHTNESS))) == 0)
1430 {
1431 short brightness;
1432 brightness=simple_strtol(&buf[strlen(PARAM_BRIGHTNESS)],NULL,10);
1433 if (brightness>127 || brightness<-128) { brightness=0;}
1434 // printk(KERN_DEBUG "mga_vid: brightness modified ( %d ) \n",brightness);
1435 card->brightness=brightness;
1436 } else
1437 if(memcmp(buf,PARAM_CONTRAST,min(count,strlen(PARAM_CONTRAST))) == 0)
1438 {
1439 short contrast;
1440 contrast=simple_strtol(&buf[strlen(PARAM_CONTRAST)],NULL,10);
1441 if (contrast>127 || contrast<-128) { contrast=0;}
1442 // printk(KERN_DEBUG "mga_vid: contrast modified ( %d ) \n",contrast);
1443 card->contrast=contrast;
1444 } else
1445
1446 if(memcmp(buf,PARAM_BLACKIE,min(count,strlen(PARAM_BLACKIE))) == 0)
1447 {
1448 short blackie;
1449 blackie=simple_strtol(&buf[strlen(PARAM_BLACKIE)],NULL,10);
1450 // printk(KERN_DEBUG "mga_vid: shadow mode: ( %d ) \n",blackie);
1451 card->regs.blackie=(blackie>0)?1:0;
1452 } else count = -EIO;
1453 // TODO: reset settings
1454 return count;
1455 }
1456
mga_vid_mmap(struct file * file,struct vm_area_struct * vma)1457 static int mga_vid_mmap(struct file *file, struct vm_area_struct *vma)
1458 {
1459 mga_card_t * card = (mga_card_t *) file->private_data;
1460
1461 #ifdef MP_DEBUG
1462 printk(KERN_DEBUG "mga_vid: mapping video memory into userspace\n");
1463 #endif
1464
1465 if(!card->configured)
1466 {
1467 printk(KERN_ERR "mga_vid: card is not configured, cannot mmap\n");
1468 return -EAGAIN;
1469 }
1470
1471 if(remap_page_range(vma->vm_start, card->mem_base + card->src_base,
1472 vma->vm_end - vma->vm_start, vma->vm_page_prot))
1473 {
1474 printk(KERN_ERR "mga_vid: error mapping video memory\n");
1475 return -EAGAIN;
1476 }
1477
1478 return 0;
1479 }
1480
mga_vid_release(struct inode * inode,struct file * file)1481 static int mga_vid_release(struct inode *inode, struct file *file)
1482 {
1483 mga_card_t * card;
1484
1485 //Close the window just in case
1486 #ifdef MP_DEBUG
1487 printk(KERN_DEBUG "mga_vid: Video OFF (release)\n");
1488 #endif
1489
1490 card = (mga_card_t *) file->private_data;
1491
1492 card->vid_src_ready = 0;
1493 card->regs.besctl &= ~1;
1494 card->regs.besglobctl &= ~(1<<6); // UYVY format selected
1495 // card->config.colkey_on=0; //!!!
1496 mga_vid_write_regs(card, 1);
1497 card->vid_in_use = 0;
1498
1499 MOD_DEC_USE_COUNT;
1500 return 0;
1501 }
1502
mga_vid_lseek(struct file * file,long long offset,int origin)1503 static long long mga_vid_lseek(struct file *file, long long offset, int origin)
1504 {
1505 return -ESPIPE;
1506 }
1507
mga_vid_open(struct inode * inode,struct file * file)1508 static int mga_vid_open(struct inode *inode, struct file *file)
1509 {
1510 mga_card_t * card;
1511
1512 int minor = MINOR(inode->i_rdev);
1513
1514 if(!file->private_data)
1515 {
1516 // we are not using devfs, use the minor
1517 // number to specify the card we are using
1518
1519 // we don't have that many cards
1520 if(minor >= mga_cards_num)
1521 return -ENXIO;
1522
1523 file->private_data = mga_cards[minor];
1524 #ifdef MP_DEBUG
1525 printk(KERN_DEBUG "mga_vid: Not using devfs\n");
1526 #endif
1527 }
1528 #ifdef MP_DEBUG
1529 else {
1530 printk(KERN_DEBUG "mga_vid: Using devfs\n");
1531 }
1532 #endif
1533
1534 card = (mga_card_t *) file->private_data;
1535
1536 if(card->vid_in_use == 1)
1537 return -EBUSY;
1538
1539 card->vid_in_use = 1;
1540 MOD_INC_USE_COUNT;
1541 return 0;
1542 }
1543
1544 #if LINUX_VERSION_CODE >= 0x020400
1545 static struct file_operations mga_vid_fops =
1546 {
1547 llseek: mga_vid_lseek,
1548 read: mga_vid_read,
1549 write: mga_vid_write,
1550 ioctl: mga_vid_ioctl,
1551 mmap: mga_vid_mmap,
1552 open: mga_vid_open,
1553 release: mga_vid_release
1554 };
1555 #else
1556 static struct file_operations mga_vid_fops =
1557 {
1558 mga_vid_lseek,
1559 mga_vid_read,
1560 mga_vid_write,
1561 NULL,
1562 NULL,
1563 mga_vid_ioctl,
1564 mga_vid_mmap,
1565 mga_vid_open,
1566 NULL,
1567 mga_vid_release
1568 };
1569 #endif
1570
cards_init(mga_card_t * card,struct pci_dev * dev,int card_number,int is_g400)1571 static void cards_init(mga_card_t * card, struct pci_dev * dev, int card_number, int is_g400)
1572 {
1573 unsigned int card_option;
1574 // temp buffer for device filename creation used only by devfs
1575 #ifdef CONFIG_DEVFS_FS
1576 char buffer[16];
1577 #endif
1578
1579 memset(card,0,sizeof(mga_card_t));
1580 card->irq = -1;
1581
1582 card->pci_dev = dev;
1583 card->irq = dev->irq;
1584 card->is_g400 = is_g400;
1585
1586 card->param_buff = kmalloc(PARAM_BUFF_SIZE,GFP_KERNEL);
1587 if(card->param_buff) card->param_buff_size = PARAM_BUFF_SIZE;
1588
1589 card->brightness = mga_brightness[card_number];
1590 card->contrast = mga_contrast[card_number];
1591 card->top_reserved = mga_top_reserved[card_number];
1592
1593 #if LINUX_VERSION_CODE >= 0x020300
1594 card->mmio_base = ioremap_nocache(dev->resource[1].start,0x4000);
1595 card->mem_base = dev->resource[0].start;
1596 #else
1597 card->mmio_base = ioremap_nocache(dev->base_address[1] & PCI_BASE_ADDRESS_MEM_MASK,0x4000);
1598 card->mem_base = dev->base_address[0] & PCI_BASE_ADDRESS_MEM_MASK;
1599 #endif
1600 printk(KERN_INFO "mga_vid: MMIO at 0x%p IRQ: %d framebuffer: 0x%08X\n", card->mmio_base, card->irq, card->mem_base);
1601
1602 pci_read_config_dword(dev, 0x40, &card_option);
1603 printk(KERN_INFO "mga_vid: OPTION word: 0x%08X mem: 0x%02X %s\n", card_option,
1604 (card_option>>10)&0x17, ((card_option>>14)&1)?"SGRAM":"SDRAM");
1605
1606 if (mga_ram_size[card_number]) {
1607 printk(KERN_INFO "mga_vid: RAMSIZE forced to %d MB\n", mga_ram_size[card_number]);
1608 card->ram_size=mga_ram_size[card_number];
1609 } else {
1610
1611 #ifdef MGA_MEMORY_SIZE
1612 card->ram_size = MGA_MEMORY_SIZE;
1613 printk(KERN_INFO "mga_vid: hard-coded RAMSIZE is %d MB\n", (unsigned int) card->ram_size);
1614 #else
1615 if (card->is_g400){
1616 switch((card_option>>10)&0x17){
1617 // SDRAM:
1618 case 0x00:
1619 case 0x04: card->ram_size = 16; break;
1620 case 0x03:
1621 case 0x05: card->ram_size = 32; break;
1622 // SGRAM:
1623 case 0x10:
1624 case 0x14: card->ram_size = 32; break;
1625 case 0x11:
1626 case 0x12: card->ram_size = 16; break;
1627 default:
1628 card->ram_size = 16;
1629 printk(KERN_INFO "mga_vid: Couldn't detect RAMSIZE, assuming 16MB!");
1630 }
1631 /* Check for buggy 16MB cards reporting 32 MB */
1632 if(card->ram_size != 16 &&
1633 (dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SDRAM ||
1634 dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_16MB_SGRAM ||
1635 dev->subsystem_device == PCI_SUBSYSTEM_ID_MATROX_G400_DH_16MB))
1636 {
1637 printk(KERN_INFO "mga_vid: Detected 16MB card reporting %d MB RAMSIZE, overriding\n", card->ram_size);
1638 card->ram_size = 16;
1639 }
1640 }else{
1641 switch((card_option>>10)&0x17){
1642 // case 0x10:
1643 // case 0x13: card->ram_size = 8; break;
1644 default: card->ram_size = 8;
1645 }
1646 }
1647 #if 0
1648 // printk("List resources -----------\n");
1649 for(temp=0;temp<DEVICE_COUNT_RESOURCE;temp++){
1650 struct resource *res=&dev->resource[temp];
1651 if(res->flags){
1652 int size=(1+res->end-res->start)>>20;
1653 printk(KERN_DEBUG "res %d: start: 0x%X end: 0x%X (%d MB) flags=0x%X\n",temp,res->start,res->end,size,res->flags);
1654 if(res->flags&(IORESOURCE_MEM|IORESOURCE_PREFETCH)){
1655 if(size>card->ram_size && size<=64) card->ram_size=size;
1656 }
1657 }
1658 }
1659 #endif
1660 printk(KERN_INFO "mga_vid: detected RAMSIZE is %d MB\n", (unsigned int) card->ram_size);
1661 #endif
1662 }
1663
1664
1665 #ifdef MGA_ALLOW_IRQ
1666 if ( card->irq != -1 ) {
1667 int tmp = request_irq(card->irq, mga_handle_irq, SA_INTERRUPT | SA_SHIRQ, "Syncfb Time Base", card);
1668 if ( tmp ) {
1669 printk(KERN_INFO "syncfb (mga): cannot register irq %d (Err: %d)\n", card->irq, tmp);
1670 card->irq=-1;
1671 } else {
1672 printk(KERN_DEBUG "syncfb (mga): registered irq %d\n", card->irq);
1673 }
1674 } else {
1675 printk(KERN_INFO "syncfb (mga): No valid irq was found\n");
1676 card->irq=-1;
1677 }
1678 #else
1679 printk(KERN_INFO "syncfb (mga): IRQ disabled in mga_vid.c\n");
1680 card->irq=-1;
1681 #endif
1682
1683 // register devfs, let the kernel give us major and minor numbers
1684 #ifdef CONFIG_DEVFS_FS
1685 snprintf(buffer, 16, "mga_vid%d", card_number);
1686 card->dev_handle = devfs_register(NULL, buffer, DEVFS_FL_AUTO_DEVNUM,
1687 0, 0,
1688 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IFCHR,
1689 &mga_vid_fops, card);
1690 #endif
1691 }
1692
1693 /*
1694 * Main Initialization Function
1695 */
1696
mga_vid_initialize(void)1697 static int mga_vid_initialize(void)
1698 {
1699 int i;
1700
1701 // printk(KERN_INFO "Matrox MGA G200/G400 YUV Video interface v0.01 (c) Aaron Holtzman \n");
1702 printk(KERN_INFO "Matrox MGA G200/G400/G450/G550 YUV Video interface v2.01 (c) Aaron Holtzman & A'rpi\n");
1703
1704 for(i = 0; i < MGA_MAX_CARDS; i++)
1705 {
1706 if (mga_ram_size[i]) {
1707 if (mga_ram_size[i]<4 || mga_ram_size[i]>64) {
1708 printk(KERN_ERR "mga_vid: invalid RAMSIZE: %d MB\n", mga_ram_size[i]);
1709 return -EINVAL;
1710 }
1711 }
1712 }
1713
1714 if(register_chrdev(major, "mga_vid", &mga_vid_fops))
1715 {
1716 printk(KERN_ERR "mga_vid: unable to get major: %d\n", major);
1717 return -EIO;
1718 }
1719
1720 if (!mga_vid_find_card())
1721 {
1722 printk(KERN_ERR "mga_vid: no supported devices found\n");
1723 unregister_chrdev(major, "mga_vid");
1724 return -EINVAL;
1725 }
1726 #ifdef CONFIG_DEVFS_FS
1727 else {
1728 // we assume that this always succeedes
1729 dev_handle = devfs_register(NULL, "mga_vid", DEVFS_FL_AUTO_DEVNUM,
1730 0,0,
1731 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IFCHR,
1732 &mga_vid_fops, mga_cards[0]);
1733 }
1734 #endif
1735
1736 return 0;
1737 }
1738
init_module(void)1739 int init_module(void)
1740 {
1741 return mga_vid_initialize();
1742 }
1743
cleanup_module(void)1744 void cleanup_module(void)
1745 {
1746 int i;
1747 mga_card_t * card;
1748
1749 for (i = 0; i < MGA_MAX_CARDS; i++)
1750 {
1751 card = mga_cards[i];
1752 if(card)
1753 {
1754 #ifdef MGA_ALLOW_IRQ
1755 if (card->irq != -1)
1756 free_irq(card->irq, &(card->irq));
1757 #endif
1758
1759 if(card->mmio_base)
1760 iounmap(card->mmio_base);
1761 if(card->param_buff)
1762 kfree(card->param_buff);
1763 #ifdef CONFIG_DEVFS_FS
1764 if(card->dev_handle) devfs_unregister(card->dev_handle);
1765 #endif
1766
1767 kfree(card);
1768 mga_cards[i]=NULL;
1769 }
1770 }
1771
1772 //FIXME turn off BES
1773 printk(KERN_INFO "mga_vid: Cleaning up module\n");
1774 #ifdef CONFIG_DEVFS_FS
1775 if(dev_handle) devfs_unregister(dev_handle);
1776 #endif
1777 unregister_chrdev(major, "mga_vid");
1778 }
1779