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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / drivers / media / pci / zoran / zoran_device.c
blob4d47ddac97dcadabde62d20781e6b7b8e79c664f
1 /*
2 * Zoran zr36057/zr36067 PCI controller driver, for the
3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
4 * Media Labs LML33/LML33R10.
5 *
6 * This part handles device access (PCI/I2C/codec/...)
7 *
8 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
9 *
10 * Currently maintained by:
11 * Ronald Bultje <rbultje@ronald.bitfreak.net>
12 * Laurent Pinchart <laurent.pinchart@skynet.be>
13 * Mailinglist <mjpeg-users@lists.sf.net>
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
29
30 #include <linux/types.h>
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/vmalloc.h>
34 #include <linux/ktime.h>
35
36 #include <linux/interrupt.h>
37 #include <linux/proc_fs.h>
38 #include <linux/i2c.h>
39 #include <linux/i2c-algo-bit.h>
40 #include <linux/videodev2.h>
41 #include <media/v4l2-common.h>
42 #include <linux/spinlock.h>
43 #include <linux/sem.h>
44
45 #include <linux/pci.h>
46 #include <linux/delay.h>
47 #include <linux/wait.h>
48
49 #include <asm/byteorder.h>
50 #include <asm/io.h>
51
52 #include "videocodec.h"
53 #include "zoran.h"
54 #include "zoran_device.h"
55 #include "zoran_card.h"
56
57 #define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \
58 ZR36057_ISR_GIRQ1 | \
59 ZR36057_ISR_JPEGRepIRQ )
60
61 static bool lml33dpath; /* default = 0
62 * 1 will use digital path in capture
63 * mode instead of analog. It can be
64 * used for picture adjustments using
65 * tool like xawtv while watching image
66 * on TV monitor connected to the output.
67 * However, due to absence of 75 Ohm
68 * load on Bt819 input, there will be
69 * some image imperfections */
70
71 module_param(lml33dpath, bool, 0644);
72 MODULE_PARM_DESC(lml33dpath,
73 "Use digital path capture mode (on LML33 cards)");
74
75 static void
76 zr36057_init_vfe (struct zoran *zr);
77
78 /*
79 * General Purpose I/O and Guest bus access
80 */
81
82 /*
83 * This is a bit tricky. When a board lacks a GPIO function, the corresponding
84 * GPIO bit number in the card_info structure is set to 0.
85 */
86
87 void
88 GPIO (struct zoran *zr,
89 int bit,
90 unsigned int value)
91 {
92 u32 reg;
93 u32 mask;
94
95 /* Make sure the bit number is legal
96 * A bit number of -1 (lacking) gives a mask of 0,
97 * making it harmless */
98 mask = (1 << (24 + bit)) & 0xff000000;
99 reg = btread(ZR36057_GPPGCR1) & ~mask;
100 if (value) {
101 reg |= mask;
102 }
103 btwrite(reg, ZR36057_GPPGCR1);
104 udelay(1);
105 }
106
107 /*
108 * Wait til post office is no longer busy
109 */
110
111 int
112 post_office_wait (struct zoran *zr)
113 {
114 u32 por;
115
116 // while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) {
117 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) {
118 /* wait for something to happen */
119 }
120 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) {
121 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */
122 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr),
123 por);
124 return -1;
125 }
126
127 return 0;
128 }
129
130 int
131 post_office_write (struct zoran *zr,
132 unsigned int guest,
133 unsigned int reg,
134 unsigned int value)
135 {
136 u32 por;
137
138 por =
139 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) |
140 ((reg & 7) << 16) | (value & 0xFF);
141 btwrite(por, ZR36057_POR);
142
143 return post_office_wait(zr);
144 }
145
146 int
147 post_office_read (struct zoran *zr,
148 unsigned int guest,
149 unsigned int reg)
150 {
151 u32 por;
152
153 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16);
154 btwrite(por, ZR36057_POR);
155 if (post_office_wait(zr) < 0) {
156 return -1;
157 }
158
159 return btread(ZR36057_POR) & 0xFF;
160 }
161
162 /*
163 * detect guests
164 */
165
166 static void
167 dump_guests (struct zoran *zr)
168 {
169 if (zr36067_debug > 2) {
170 int i, guest[8];
171
172 for (i = 1; i < 8; i++) { // Don't read jpeg codec here
173 guest[i] = post_office_read(zr, i, 0);
174 }
175
176 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
177
178 for (i = 1; i < 8; i++) {
179 printk(" 0x%02x", guest[i]);
180 }
181 printk("\n");
182 }
183 }
184
185 void
186 detect_guest_activity (struct zoran *zr)
187 {
188 int timeout, i, j, res, guest[8], guest0[8], change[8][3];
189 ktime_t t0, t1;
190
191 dump_guests(zr);
192 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n",
193 ZR_DEVNAME(zr));
194 for (i = 1; i < 8; i++) { // Don't read jpeg codec here
195 guest0[i] = guest[i] = post_office_read(zr, i, 0);
196 }
197
198 timeout = 0;
199 j = 0;
200 t0 = ktime_get();
201 while (timeout < 10000) {
202 udelay(10);
203 timeout++;
204 for (i = 1; (i < 8) && (j < 8); i++) {
205 res = post_office_read(zr, i, 0);
206 if (res != guest[i]) {
207 t1 = ktime_get();
208 change[j][0] = ktime_to_us(ktime_sub(t1, t0));
209 t0 = t1;
210 change[j][1] = i;
211 change[j][2] = res;
212 j++;
213 guest[i] = res;
214 }
215 }
216 if (j >= 8)
217 break;
218 }
219 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
220
221 for (i = 1; i < 8; i++) {
222 printk(" 0x%02x", guest0[i]);
223 }
224 printk("\n");
225 if (j == 0) {
226 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr));
227 return;
228 }
229 for (i = 0; i < j; i++) {
230 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr),
231 change[i][0], change[i][1], change[i][2]);
232 }
233 }
234
235 /*
236 * JPEG Codec access
237 */
238
239 void
240 jpeg_codec_sleep (struct zoran *zr,
241 int sleep)
242 {
243 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep);
244 if (!sleep) {
245 dprintk(3,
246 KERN_DEBUG
247 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n",
248 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
249 udelay(500);
250 } else {
251 dprintk(3,
252 KERN_DEBUG
253 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n",
254 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
255 udelay(2);
256 }
257 }
258
259 int
260 jpeg_codec_reset (struct zoran *zr)
261 {
262 /* Take the codec out of sleep */
263 jpeg_codec_sleep(zr, 0);
264
265 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) {
266 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0,
267 0);
268 udelay(2);
269 } else {
270 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0);
271 udelay(2);
272 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1);
273 udelay(2);
274 }
275
276 return 0;
277 }
278
279 /*
280 * Set the registers for the size we have specified. Don't bother
281 * trying to understand this without the ZR36057 manual in front of
282 * you [AC].
283 *
284 * PS: The manual is free for download in .pdf format from
285 * www.zoran.com - nicely done those folks.
286 */
287
288 static void
289 zr36057_adjust_vfe (struct zoran *zr,
290 enum zoran_codec_mode mode)
291 {
292 u32 reg;
293
294 switch (mode) {
295 case BUZ_MODE_MOTION_DECOMPRESS:
296 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
297 reg = btread(ZR36057_VFEHCR);
298 if ((reg & (1 << 10)) && zr->card.type != LML33R10) {
299 reg += ((1 << 10) | 1);
300 }
301 btwrite(reg, ZR36057_VFEHCR);
302 break;
303 case BUZ_MODE_MOTION_COMPRESS:
304 case BUZ_MODE_IDLE:
305 default:
306 if ((zr->norm & V4L2_STD_NTSC) ||
307 (zr->card.type == LML33R10 &&
308 (zr->norm & V4L2_STD_PAL)))
309 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
310 else
311 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
312 reg = btread(ZR36057_VFEHCR);
313 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) {
314 reg -= ((1 << 10) | 1);
315 }
316 btwrite(reg, ZR36057_VFEHCR);
317 break;
318 }
319 }
320
321 /*
322 * set geometry
323 */
324
325 static void
326 zr36057_set_vfe (struct zoran *zr,
327 int video_width,
328 int video_height,
329 const struct zoran_format *format)
330 {
331 struct tvnorm *tvn;
332 unsigned HStart, HEnd, VStart, VEnd;
333 unsigned DispMode;
334 unsigned VidWinWid, VidWinHt;
335 unsigned hcrop1, hcrop2, vcrop1, vcrop2;
336 unsigned Wa, We, Ha, He;
337 unsigned X, Y, HorDcm, VerDcm;
338 u32 reg;
339 unsigned mask_line_size;
340
341 tvn = zr->timing;
342
343 Wa = tvn->Wa;
344 Ha = tvn->Ha;
345
346 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n",
347 ZR_DEVNAME(zr), video_width, video_height);
348
349 if (video_width < BUZ_MIN_WIDTH ||
350 video_height < BUZ_MIN_HEIGHT ||
351 video_width > Wa || video_height > Ha) {
352 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n",
353 ZR_DEVNAME(zr), video_width, video_height);
354 return;
355 }
356
357 /**** zr36057 ****/
358
359 /* horizontal */
360 VidWinWid = video_width;
361 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa);
362 We = (VidWinWid * 64) / X;
363 HorDcm = 64 - X;
364 hcrop1 = 2 * ((tvn->Wa - We) / 4);
365 hcrop2 = tvn->Wa - We - hcrop1;
366 HStart = tvn->HStart ? tvn->HStart : 1;
367 /* (Ronald) Original comment:
368 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+"
369 * this is false. It inverses chroma values on the LML33R10 (so Cr
370 * suddenly is shown as Cb and reverse, really cool effect if you
371 * want to see blue faces, not useful otherwise). So don't use |1.
372 * However, the DC10 has '0' as HStart, but does need |1, so we
373 * use a dirty check...
374 */
375 HEnd = HStart + tvn->Wa - 1;
376 HStart += hcrop1;
377 HEnd -= hcrop2;
378 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
379 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
380 if (zr->card.vfe_pol.hsync_pol)
381 reg |= ZR36057_VFEHCR_HSPol;
382 btwrite(reg, ZR36057_VFEHCR);
383
384 /* Vertical */
385 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2);
386 VidWinHt = DispMode ? video_height : video_height / 2;
387 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha);
388 He = (VidWinHt * 64) / Y;
389 VerDcm = 64 - Y;
390 vcrop1 = (tvn->Ha / 2 - He) / 2;
391 vcrop2 = tvn->Ha / 2 - He - vcrop1;
392 VStart = tvn->VStart;
393 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP
394 VStart += vcrop1;
395 VEnd -= vcrop2;
396 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
397 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
398 if (zr->card.vfe_pol.vsync_pol)
399 reg |= ZR36057_VFEVCR_VSPol;
400 btwrite(reg, ZR36057_VFEVCR);
401
402 /* scaler and pixel format */
403 reg = 0;
404 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm);
405 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm);
406 reg |= (DispMode << ZR36057_VFESPFR_DispMode);
407 /* RJ: I don't know, why the following has to be the opposite
408 * of the corresponding ZR36060 setting, but only this way
409 * we get the correct colors when uncompressing to the screen */
410 //reg |= ZR36057_VFESPFR_VCLKPol; /**/
411 /* RJ: Don't know if that is needed for NTSC also */
412 if (!(zr->norm & V4L2_STD_NTSC))
413 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang
414 reg |= ZR36057_VFESPFR_TopField;
415 if (HorDcm >= 48) {
416 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */
417 } else if (HorDcm >= 32) {
418 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */
419 } else if (HorDcm >= 16) {
420 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */
421 }
422 reg |= format->vfespfr;
423 btwrite(reg, ZR36057_VFESPFR);
424
425 /* display configuration */
426 reg = (16 << ZR36057_VDCR_MinPix)
427 | (VidWinHt << ZR36057_VDCR_VidWinHt)
428 | (VidWinWid << ZR36057_VDCR_VidWinWid);
429 if (pci_pci_problems & PCIPCI_TRITON)
430 // || zr->revision < 1) // Revision 1 has also Triton support
431 reg &= ~ZR36057_VDCR_Triton;
432 else
433 reg |= ZR36057_VDCR_Triton;
434 btwrite(reg, ZR36057_VDCR);
435
436 /* (Ronald) don't write this if overlay_mask = NULL */
437 if (zr->overlay_mask) {
438 /* Write overlay clipping mask data, but don't enable overlay clipping */
439 /* RJ: since this makes only sense on the screen, we use
440 * zr->overlay_settings.width instead of video_width */
441
442 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
443 reg = virt_to_bus(zr->overlay_mask);
444 btwrite(reg, ZR36057_MMTR);
445 reg = virt_to_bus(zr->overlay_mask + mask_line_size);
446 btwrite(reg, ZR36057_MMBR);
447 reg =
448 mask_line_size - (zr->overlay_settings.width +
449 31) / 32;
450 if (DispMode == 0)
451 reg += mask_line_size;
452 reg <<= ZR36057_OCR_MaskStride;
453 btwrite(reg, ZR36057_OCR);
454 }
455
456 zr36057_adjust_vfe(zr, zr->codec_mode);
457 }
458
459 /*
460 * Switch overlay on or off
461 */
462
463 void
464 zr36057_overlay (struct zoran *zr,
465 int on)
466 {
467 u32 reg;
468
469 if (on) {
470 /* do the necessary settings ... */
471 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
472
473 zr36057_set_vfe(zr,
474 zr->overlay_settings.width,
475 zr->overlay_settings.height,
476 zr->overlay_settings.format);
477
478 /* Start and length of each line MUST be 4-byte aligned.
479 * This should be already checked before the call to this routine.
480 * All error messages are internal driver checking only! */
481
482 /* video display top and bottom registers */
483 reg = (long) zr->vbuf_base +
484 zr->overlay_settings.x *
485 ((zr->overlay_settings.format->depth + 7) / 8) +
486 zr->overlay_settings.y *
487 zr->vbuf_bytesperline;
488 btwrite(reg, ZR36057_VDTR);
489 if (reg & 3)
490 dprintk(1,
491 KERN_ERR
492 "%s: zr36057_overlay() - video_address not aligned\n",
493 ZR_DEVNAME(zr));
494 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
495 reg += zr->vbuf_bytesperline;
496 btwrite(reg, ZR36057_VDBR);
497
498 /* video stride, status, and frame grab register */
499 reg = zr->vbuf_bytesperline -
500 zr->overlay_settings.width *
501 ((zr->overlay_settings.format->depth + 7) / 8);
502 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
503 reg += zr->vbuf_bytesperline;
504 if (reg & 3)
505 dprintk(1,
506 KERN_ERR
507 "%s: zr36057_overlay() - video_stride not aligned\n",
508 ZR_DEVNAME(zr));
509 reg = (reg << ZR36057_VSSFGR_DispStride);
510 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
511 btwrite(reg, ZR36057_VSSFGR);
512
513 /* Set overlay clipping */
514 if (zr->overlay_settings.clipcount > 0)
515 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
516
517 /* ... and switch it on */
518 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
519 } else {
520 /* Switch it off */
521 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
522 }
523 }
524
525 /*
526 * The overlay mask has one bit for each pixel on a scan line,
527 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
528 */
529
530 void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count)
531 {
532 struct zoran *zr = fh->zr;
533 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
534 u32 *mask;
535 int x, y, width, height;
536 unsigned i, j, k;
537
538 /* fill mask with one bits */
539 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
540
541 for (i = 0; i < count; ++i) {
542 /* pick up local copy of clip */
543 x = vp[i].c.left;
544 y = vp[i].c.top;
545 width = vp[i].c.width;
546 height = vp[i].c.height;
547
548 /* trim clips that extend beyond the window */
549 if (x < 0) {
550 width += x;
551 x = 0;
552 }
553 if (y < 0) {
554 height += y;
555 y = 0;
556 }
557 if (x + width > fh->overlay_settings.width) {
558 width = fh->overlay_settings.width - x;
559 }
560 if (y + height > fh->overlay_settings.height) {
561 height = fh->overlay_settings.height - y;
562 }
563
564 /* ignore degenerate clips */
565 if (height <= 0) {
566 continue;
567 }
568 if (width <= 0) {
569 continue;
570 }
571
572 /* apply clip for each scan line */
573 for (j = 0; j < height; ++j) {
574 /* reset bit for each pixel */
575 /* this can be optimized later if need be */
576 mask = fh->overlay_mask + (y + j) * mask_line_size;
577 for (k = 0; k < width; ++k) {
578 mask[(x + k) / 32] &=
579 ~((u32) 1 << (x + k) % 32);
580 }
581 }
582 }
583 }
584
585 /* Enable/Disable uncompressed memory grabbing of the 36057 */
586
587 void
588 zr36057_set_memgrab (struct zoran *zr,
589 int mode)
590 {
591 if (mode) {
592 /* We only check SnapShot and not FrameGrab here. SnapShot==1
593 * means a capture is already in progress, but FrameGrab==1
594 * doesn't necessary mean that. It's more correct to say a 1
595 * to 0 transition indicates a capture completed. If a
596 * capture is pending when capturing is tuned off, FrameGrab
597 * will be stuck at 1 until capturing is turned back on.
598 */
599 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot)
600 dprintk(1,
601 KERN_WARNING
602 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n",
603 ZR_DEVNAME(zr));
604
605 /* switch on VSync interrupts */
606 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
607 btor(zr->card.vsync_int, ZR36057_ICR); // SW
608
609 /* enable SnapShot */
610 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
611
612 /* Set zr36057 video front end and enable video */
613 zr36057_set_vfe(zr, zr->v4l_settings.width,
614 zr->v4l_settings.height,
615 zr->v4l_settings.format);
616
617 zr->v4l_memgrab_active = 1;
618 } else {
619 /* switch off VSync interrupts */
620 btand(~zr->card.vsync_int, ZR36057_ICR); // SW
621
622 zr->v4l_memgrab_active = 0;
623 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
624
625 /* reenable grabbing to screen if it was running */
626 if (zr->v4l_overlay_active) {
627 zr36057_overlay(zr, 1);
628 } else {
629 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
630 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
631 }
632 }
633 }
634
635 int
636 wait_grab_pending (struct zoran *zr)
637 {
638 unsigned long flags;
639
640 /* wait until all pending grabs are finished */
641
642 if (!zr->v4l_memgrab_active)
643 return 0;
644
645 wait_event_interruptible(zr->v4l_capq,
646 (zr->v4l_pend_tail == zr->v4l_pend_head));
647 if (signal_pending(current))
648 return -ERESTARTSYS;
649
650 spin_lock_irqsave(&zr->spinlock, flags);
651 zr36057_set_memgrab(zr, 0);
652 spin_unlock_irqrestore(&zr->spinlock, flags);
653
654 return 0;
655 }
656
657 /*****************************************************************************
658 * *
659 * Set up the Buz-specific MJPEG part *
660 * *
661 *****************************************************************************/
662
663 static inline void
664 set_frame (struct zoran *zr,
665 int val)
666 {
667 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val);
668 }
669
670 static void
671 set_videobus_dir (struct zoran *zr,
672 int val)
673 {
674 switch (zr->card.type) {
675 case LML33:
676 case LML33R10:
677 if (!lml33dpath)
678 GPIO(zr, 5, val);
679 else
680 GPIO(zr, 5, 1);
681 break;
682 default:
683 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR],
684 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val);
685 break;
686 }
687 }
688
689 static void
690 init_jpeg_queue (struct zoran *zr)
691 {
692 int i;
693
694 /* re-initialize DMA ring stuff */
695 zr->jpg_que_head = 0;
696 zr->jpg_dma_head = 0;
697 zr->jpg_dma_tail = 0;
698 zr->jpg_que_tail = 0;
699 zr->jpg_seq_num = 0;
700 zr->JPEG_error = 0;
701 zr->num_errors = 0;
702 zr->jpg_err_seq = 0;
703 zr->jpg_err_shift = 0;
704 zr->jpg_queued_num = 0;
705 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
706 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
707 }
708 for (i = 0; i < BUZ_NUM_STAT_COM; i++) {
709 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
710 }
711 }
712
713 static void
714 zr36057_set_jpg (struct zoran *zr,
715 enum zoran_codec_mode mode)
716 {
717 struct tvnorm *tvn;
718 u32 reg;
719
720 tvn = zr->timing;
721
722 /* assert P_Reset, disable code transfer, deassert Active */
723 btwrite(0, ZR36057_JPC);
724
725 /* MJPEG compression mode */
726 switch (mode) {
727
728 case BUZ_MODE_MOTION_COMPRESS:
729 default:
730 reg = ZR36057_JMC_MJPGCmpMode;
731 break;
732
733 case BUZ_MODE_MOTION_DECOMPRESS:
734 reg = ZR36057_JMC_MJPGExpMode;
735 reg |= ZR36057_JMC_SyncMstr;
736 /* RJ: The following is experimental - improves the output to screen */
737 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM
738 break;
739
740 case BUZ_MODE_STILL_COMPRESS:
741 reg = ZR36057_JMC_JPGCmpMode;
742 break;
743
744 case BUZ_MODE_STILL_DECOMPRESS:
745 reg = ZR36057_JMC_JPGExpMode;
746 break;
747
748 }
749 reg |= ZR36057_JMC_JPG;
750 if (zr->jpg_settings.field_per_buff == 1)
751 reg |= ZR36057_JMC_Fld_per_buff;
752 btwrite(reg, ZR36057_JMC);
753
754 /* vertical */
755 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR);
756 reg = (6 << ZR36057_VSP_VsyncSize) |
757 (tvn->Ht << ZR36057_VSP_FrmTot);
758 btwrite(reg, ZR36057_VSP);
759 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) |
760 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY);
761 btwrite(reg, ZR36057_FVAP);
762
763 /* horizontal */
764 if (zr->card.vfe_pol.hsync_pol)
765 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
766 else
767 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
768 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) |
769 (tvn->Wt << ZR36057_HSP_LineTot);
770 btwrite(reg, ZR36057_HSP);
771 reg = ((zr->jpg_settings.img_x +
772 tvn->HStart + 4) << ZR36057_FHAP_NAX) |
773 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX);
774 btwrite(reg, ZR36057_FHAP);
775
776 /* field process parameters */
777 if (zr->jpg_settings.odd_even)
778 reg = ZR36057_FPP_Odd_Even;
779 else
780 reg = 0;
781
782 btwrite(reg, ZR36057_FPP);
783
784 /* Set proper VCLK Polarity, else colors will be wrong during playback */
785 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR);
786
787 /* code base address */
788 reg = virt_to_bus(zr->stat_com);
789 btwrite(reg, ZR36057_JCBA);
790
791 /* FIFO threshold (FIFO is 160. double words) */
792 /* NOTE: decimal values here */
793 switch (mode) {
794
795 case BUZ_MODE_STILL_COMPRESS:
796 case BUZ_MODE_MOTION_COMPRESS:
797 if (zr->card.type != BUZ)
798 reg = 140;
799 else
800 reg = 60;
801 break;
802
803 case BUZ_MODE_STILL_DECOMPRESS:
804 case BUZ_MODE_MOTION_DECOMPRESS:
805 reg = 20;
806 break;
807
808 default:
809 reg = 80;
810 break;
811
812 }
813 btwrite(reg, ZR36057_JCFT);
814 zr36057_adjust_vfe(zr, mode);
815
816 }
817
818 void
819 print_interrupts (struct zoran *zr)
820 {
821 int res, noerr = 0;
822
823 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr));
824 if ((res = zr->field_counter) < -1 || res > 1) {
825 printk(" FD:%d", res);
826 }
827 if ((res = zr->intr_counter_GIRQ1) != 0) {
828 printk(" GIRQ1:%d", res);
829 noerr++;
830 }
831 if ((res = zr->intr_counter_GIRQ0) != 0) {
832 printk(" GIRQ0:%d", res);
833 noerr++;
834 }
835 if ((res = zr->intr_counter_CodRepIRQ) != 0) {
836 printk(" CodRepIRQ:%d", res);
837 noerr++;
838 }
839 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) {
840 printk(" JPEGRepIRQ:%d", res);
841 noerr++;
842 }
843 if (zr->JPEG_max_missed) {
844 printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed,
845 zr->JPEG_min_missed);
846 }
847 if (zr->END_event_missed) {
848 printk(" ENDs missed: %d", zr->END_event_missed);
849 }
850 //if (zr->jpg_queued_num) {
851 printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail,
852 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head);
853 //}
854 if (!noerr) {
855 printk(": no interrupts detected.");
856 }
857 printk("\n");
858 }
859
860 void
861 clear_interrupt_counters (struct zoran *zr)
862 {
863 zr->intr_counter_GIRQ1 = 0;
864 zr->intr_counter_GIRQ0 = 0;
865 zr->intr_counter_CodRepIRQ = 0;
866 zr->intr_counter_JPEGRepIRQ = 0;
867 zr->field_counter = 0;
868 zr->IRQ1_in = 0;
869 zr->IRQ1_out = 0;
870 zr->JPEG_in = 0;
871 zr->JPEG_out = 0;
872 zr->JPEG_0 = 0;
873 zr->JPEG_1 = 0;
874 zr->END_event_missed = 0;
875 zr->JPEG_missed = 0;
876 zr->JPEG_max_missed = 0;
877 zr->JPEG_min_missed = 0x7fffffff;
878 }
879
880 static u32
881 count_reset_interrupt (struct zoran *zr)
882 {
883 u32 isr;
884
885 if ((isr = btread(ZR36057_ISR) & 0x78000000)) {
886 if (isr & ZR36057_ISR_GIRQ1) {
887 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR);
888 zr->intr_counter_GIRQ1++;
889 }
890 if (isr & ZR36057_ISR_GIRQ0) {
891 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR);
892 zr->intr_counter_GIRQ0++;
893 }
894 if (isr & ZR36057_ISR_CodRepIRQ) {
895 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR);
896 zr->intr_counter_CodRepIRQ++;
897 }
898 if (isr & ZR36057_ISR_JPEGRepIRQ) {
899 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR);
900 zr->intr_counter_JPEGRepIRQ++;
901 }
902 }
903 return isr;
904 }
905
906 void
907 jpeg_start (struct zoran *zr)
908 {
909 int reg;
910
911 zr->frame_num = 0;
912
913 /* deassert P_reset, disable code transfer, deassert Active */
914 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
915 /* stop flushing the internal code buffer */
916 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
917 /* enable code transfer */
918 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC);
919
920 /* clear IRQs */
921 btwrite(IRQ_MASK, ZR36057_ISR);
922 /* enable the JPEG IRQs */
923 btwrite(zr->card.jpeg_int |
924 ZR36057_ICR_JPEGRepIRQ |
925 ZR36057_ICR_IntPinEn,
926 ZR36057_ICR);
927
928 set_frame(zr, 0); // \FRAME
929
930 /* set the JPEG codec guest ID */
931 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) |
932 (0 << ZR36057_JCGI_JPEGuestReg);
933 btwrite(reg, ZR36057_JCGI);
934
935 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 &&
936 zr->card.video_codec == CODEC_TYPE_ZR36050) {
937 /* Enable processing on the ZR36016 */
938 if (zr->vfe)
939 zr36016_write(zr->vfe, 0, 1);
940
941 /* load the address of the GO register in the ZR36050 latch */
942 post_office_write(zr, 0, 0, 0);
943 }
944
945 /* assert Active */
946 btor(ZR36057_JPC_Active, ZR36057_JPC);
947
948 /* enable the Go generation */
949 btor(ZR36057_JMC_Go_en, ZR36057_JMC);
950 udelay(30);
951
952 set_frame(zr, 1); // /FRAME
953
954 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr));
955 }
956
957 void
958 zr36057_enable_jpg (struct zoran *zr,
959 enum zoran_codec_mode mode)
960 {
961 struct vfe_settings cap;
962 int field_size =
963 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff;
964
965 zr->codec_mode = mode;
966
967 cap.x = zr->jpg_settings.img_x;
968 cap.y = zr->jpg_settings.img_y;
969 cap.width = zr->jpg_settings.img_width;
970 cap.height = zr->jpg_settings.img_height;
971 cap.decimation =
972 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8);
973 cap.quality = zr->jpg_settings.jpg_comp.quality;
974
975 switch (mode) {
976
977 case BUZ_MODE_MOTION_COMPRESS: {
978 struct jpeg_app_marker app;
979 struct jpeg_com_marker com;
980
981 /* In motion compress mode, the decoder output must be enabled, and
982 * the video bus direction set to input.
983 */
984 set_videobus_dir(zr, 0);
985 decoder_call(zr, video, s_stream, 1);
986 encoder_call(zr, video, s_routing, 0, 0, 0);
987
988 /* Take the JPEG codec and the VFE out of sleep */
989 jpeg_codec_sleep(zr, 0);
990
991 /* set JPEG app/com marker */
992 app.appn = zr->jpg_settings.jpg_comp.APPn;
993 app.len = zr->jpg_settings.jpg_comp.APP_len;
994 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60);
995 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA,
996 sizeof(struct jpeg_app_marker), &app);
997
998 com.len = zr->jpg_settings.jpg_comp.COM_len;
999 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60);
1000 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA,
1001 sizeof(struct jpeg_com_marker), &com);
1002
1003 /* Setup the JPEG codec */
1004 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE,
1005 sizeof(int), &field_size);
1006 zr->codec->set_video(zr->codec, zr->timing, &cap,
1007 &zr->card.vfe_pol);
1008 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION);
1009
1010 /* Setup the VFE */
1011 if (zr->vfe) {
1012 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE,
1013 sizeof(int), &field_size);
1014 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1015 &zr->card.vfe_pol);
1016 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION);
1017 }
1018
1019 init_jpeg_queue(zr);
1020 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1021
1022 clear_interrupt_counters(zr);
1023 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n",
1024 ZR_DEVNAME(zr));
1025 break;
1026 }
1027
1028 case BUZ_MODE_MOTION_DECOMPRESS:
1029 /* In motion decompression mode, the decoder output must be disabled, and
1030 * the video bus direction set to output.
1031 */
1032 decoder_call(zr, video, s_stream, 0);
1033 set_videobus_dir(zr, 1);
1034 encoder_call(zr, video, s_routing, 1, 0, 0);
1035
1036 /* Take the JPEG codec and the VFE out of sleep */
1037 jpeg_codec_sleep(zr, 0);
1038 /* Setup the VFE */
1039 if (zr->vfe) {
1040 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1041 &zr->card.vfe_pol);
1042 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION);
1043 }
1044 /* Setup the JPEG codec */
1045 zr->codec->set_video(zr->codec, zr->timing, &cap,
1046 &zr->card.vfe_pol);
1047 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION);
1048
1049 init_jpeg_queue(zr);
1050 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1051
1052 clear_interrupt_counters(zr);
1053 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n",
1054 ZR_DEVNAME(zr));
1055 break;
1056
1057 case BUZ_MODE_IDLE:
1058 default:
1059 /* shut down processing */
1060 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ),
1061 ZR36057_ICR);
1062 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ,
1063 ZR36057_ISR);
1064 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en
1065
1066 msleep(50);
1067
1068 set_videobus_dir(zr, 0);
1069 set_frame(zr, 1); // /FRAME
1070 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush
1071 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active
1072 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
1073 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
1074 jpeg_codec_reset(zr);
1075 jpeg_codec_sleep(zr, 1);
1076 zr36057_adjust_vfe(zr, mode);
1077
1078 decoder_call(zr, video, s_stream, 1);
1079 encoder_call(zr, video, s_routing, 0, 0, 0);
1080
1081 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
1082 break;
1083
1084 }
1085 }
1086
1087 /* when this is called the spinlock must be held */
1088 void
1089 zoran_feed_stat_com (struct zoran *zr)
1090 {
1091 /* move frames from pending queue to DMA */
1092
1093 int frame, i, max_stat_com;
1094
1095 max_stat_com =
1096 (zr->jpg_settings.TmpDcm ==
1097 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1);
1098
1099 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com &&
1100 zr->jpg_dma_head < zr->jpg_que_head) {
1101
1102 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME];
1103 if (zr->jpg_settings.TmpDcm == 1) {
1104 /* fill 1 stat_com entry */
1105 i = (zr->jpg_dma_head -
1106 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1107 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1108 break;
1109 zr->stat_com[i] =
1110 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1111 } else {
1112 /* fill 2 stat_com entries */
1113 i = ((zr->jpg_dma_head -
1114 zr->jpg_err_shift) & 1) * 2;
1115 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1116 break;
1117 zr->stat_com[i] =
1118 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1119 zr->stat_com[i + 1] =
1120 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1121 }
1122 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA;
1123 zr->jpg_dma_head++;
1124
1125 }
1126 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS)
1127 zr->jpg_queued_num++;
1128 }
1129
1130 /* when this is called the spinlock must be held */
1131 static void
1132 zoran_reap_stat_com (struct zoran *zr)
1133 {
1134 /* move frames from DMA queue to done queue */
1135
1136 int i;
1137 u32 stat_com;
1138 unsigned int seq;
1139 unsigned int dif;
1140 struct zoran_buffer *buffer;
1141 int frame;
1142
1143 /* In motion decompress we don't have a hardware frame counter,
1144 * we just count the interrupts here */
1145
1146 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1147 zr->jpg_seq_num++;
1148 }
1149 while (zr->jpg_dma_tail < zr->jpg_dma_head) {
1150 if (zr->jpg_settings.TmpDcm == 1)
1151 i = (zr->jpg_dma_tail -
1152 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1153 else
1154 i = ((zr->jpg_dma_tail -
1155 zr->jpg_err_shift) & 1) * 2 + 1;
1156
1157 stat_com = le32_to_cpu(zr->stat_com[i]);
1158
1159 if ((stat_com & 1) == 0) {
1160 return;
1161 }
1162 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1163 buffer = &zr->jpg_buffers.buffer[frame];
1164 v4l2_get_timestamp(&buffer->bs.timestamp);
1165
1166 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1167 buffer->bs.length = (stat_com & 0x7fffff) >> 1;
1168
1169 /* update sequence number with the help of the counter in stat_com */
1170
1171 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff;
1172 dif = (seq - zr->jpg_seq_num) & 0xff;
1173 zr->jpg_seq_num += dif;
1174 } else {
1175 buffer->bs.length = 0;
1176 }
1177 buffer->bs.seq =
1178 zr->jpg_settings.TmpDcm ==
1179 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
1180 buffer->state = BUZ_STATE_DONE;
1181
1182 zr->jpg_dma_tail++;
1183 }
1184 }
1185
1186 static void zoran_restart(struct zoran *zr)
1187 {
1188 /* Now the stat_comm buffer is ready for restart */
1189 unsigned int status = 0;
1190 int mode;
1191
1192 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1193 decoder_call(zr, video, g_input_status, &status);
1194 mode = CODEC_DO_COMPRESSION;
1195 } else {
1196 status = V4L2_IN_ST_NO_SIGNAL;
1197 mode = CODEC_DO_EXPANSION;
1198 }
1199 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1200 !(status & V4L2_IN_ST_NO_SIGNAL)) {
1201 /********** RESTART code *************/
1202 jpeg_codec_reset(zr);
1203 zr->codec->set_mode(zr->codec, mode);
1204 zr36057_set_jpg(zr, zr->codec_mode);
1205 jpeg_start(zr);
1206
1207 if (zr->num_errors <= 8)
1208 dprintk(2, KERN_INFO "%s: Restart\n",
1209 ZR_DEVNAME(zr));
1210
1211 zr->JPEG_missed = 0;
1212 zr->JPEG_error = 2;
1213 /********** End RESTART code ***********/
1214 }
1215 }
1216
1217 static void
1218 error_handler (struct zoran *zr,
1219 u32 astat,
1220 u32 stat)
1221 {
1222 int i;
1223
1224 /* This is JPEG error handling part */
1225 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS &&
1226 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) {
1227 return;
1228 }
1229
1230 if ((stat & 1) == 0 &&
1231 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS &&
1232 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) {
1233 /* No free buffers... */
1234 zoran_reap_stat_com(zr);
1235 zoran_feed_stat_com(zr);
1236 wake_up_interruptible(&zr->jpg_capq);
1237 zr->JPEG_missed = 0;
1238 return;
1239 }
1240
1241 if (zr->JPEG_error == 1) {
1242 zoran_restart(zr);
1243 return;
1244 }
1245
1246 /*
1247 * First entry: error just happened during normal operation
1248 *
1249 * In BUZ_MODE_MOTION_COMPRESS:
1250 *
1251 * Possible glitch in TV signal. In this case we should
1252 * stop the codec and wait for good quality signal before
1253 * restarting it to avoid further problems
1254 *
1255 * In BUZ_MODE_MOTION_DECOMPRESS:
1256 *
1257 * Bad JPEG frame: we have to mark it as processed (codec crashed
1258 * and was not able to do it itself), and to remove it from queue.
1259 */
1260 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1261 udelay(1);
1262 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8;
1263 btwrite(0, ZR36057_JPC);
1264 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
1265 jpeg_codec_reset(zr);
1266 jpeg_codec_sleep(zr, 1);
1267 zr->JPEG_error = 1;
1268 zr->num_errors++;
1269
1270 /* Report error */
1271 if (zr36067_debug > 1 && zr->num_errors <= 8) {
1272 long frame;
1273 int j;
1274
1275 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1276 printk(KERN_ERR
1277 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ",
1278 ZR_DEVNAME(zr), stat, zr->last_isr,
1279 zr->jpg_que_tail, zr->jpg_dma_tail,
1280 zr->jpg_dma_head, zr->jpg_que_head,
1281 zr->jpg_seq_num, frame);
1282 printk(KERN_INFO "stat_com frames:");
1283 for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1284 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
1285 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus)
1286 printk(KERN_CONT "% d->%d", j, i);
1287 }
1288 }
1289 printk(KERN_CONT "\n");
1290 }
1291 /* Find an entry in stat_com and rotate contents */
1292 if (zr->jpg_settings.TmpDcm == 1)
1293 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1294 else
1295 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1296 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1297 /* Mimic zr36067 operation */
1298 zr->stat_com[i] |= cpu_to_le32(1);
1299 if (zr->jpg_settings.TmpDcm != 1)
1300 zr->stat_com[i + 1] |= cpu_to_le32(1);
1301 /* Refill */
1302 zoran_reap_stat_com(zr);
1303 zoran_feed_stat_com(zr);
1304 wake_up_interruptible(&zr->jpg_capq);
1305 /* Find an entry in stat_com again after refill */
1306 if (zr->jpg_settings.TmpDcm == 1)
1307 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1308 else
1309 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1310 }
1311 if (i) {
1312 /* Rotate stat_comm entries to make current entry first */
1313 int j;
1314 __le32 bus_addr[BUZ_NUM_STAT_COM];
1315
1316 /* Here we are copying the stat_com array, which
1317 * is already in little endian format, so
1318 * no endian conversions here
1319 */
1320 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr));
1321
1322 for (j = 0; j < BUZ_NUM_STAT_COM; j++)
1323 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM];
1324
1325 zr->jpg_err_shift += i;
1326 zr->jpg_err_shift &= BUZ_MASK_STAT_COM;
1327 }
1328 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)
1329 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */
1330 zoran_restart(zr);
1331 }
1332
1333 irqreturn_t
1334 zoran_irq (int irq,
1335 void *dev_id)
1336 {
1337 u32 stat, astat;
1338 int count;
1339 struct zoran *zr;
1340 unsigned long flags;
1341
1342 zr = dev_id;
1343 count = 0;
1344
1345 if (zr->testing) {
1346 /* Testing interrupts */
1347 spin_lock_irqsave(&zr->spinlock, flags);
1348 while ((stat = count_reset_interrupt(zr))) {
1349 if (count++ > 100) {
1350 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1351 dprintk(1,
1352 KERN_ERR
1353 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n",
1354 ZR_DEVNAME(zr), stat);
1355 wake_up_interruptible(&zr->test_q);
1356 }
1357 }
1358 zr->last_isr = stat;
1359 spin_unlock_irqrestore(&zr->spinlock, flags);
1360 return IRQ_HANDLED;
1361 }
1362
1363 spin_lock_irqsave(&zr->spinlock, flags);
1364 while (1) {
1365 /* get/clear interrupt status bits */
1366 stat = count_reset_interrupt(zr);
1367 astat = stat & IRQ_MASK;
1368 if (!astat) {
1369 break;
1370 }
1371 dprintk(4,
1372 KERN_DEBUG
1373 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n",
1374 astat, btread(ZR36057_ICR));
1375 if (astat & zr->card.vsync_int) { // SW
1376
1377 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1378 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1379 /* count missed interrupts */
1380 zr->JPEG_missed++;
1381 }
1382 //post_office_read(zr,1,0);
1383 /* Interrupts may still happen when
1384 * zr->v4l_memgrab_active is switched off.
1385 * We simply ignore them */
1386
1387 if (zr->v4l_memgrab_active) {
1388 /* A lot more checks should be here ... */
1389 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0)
1390 dprintk(1,
1391 KERN_WARNING
1392 "%s: BuzIRQ with SnapShot off ???\n",
1393 ZR_DEVNAME(zr));
1394
1395 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) {
1396 /* There is a grab on a frame going on, check if it has finished */
1397 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) {
1398 /* it is finished, notify the user */
1399
1400 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
1401 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
1402 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
1403 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
1404 zr->v4l_pend_tail++;
1405 }
1406 }
1407
1408 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE)
1409 wake_up_interruptible(&zr->v4l_capq);
1410
1411 /* Check if there is another grab queued */
1412
1413 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE &&
1414 zr->v4l_pend_tail != zr->v4l_pend_head) {
1415 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
1416 u32 reg;
1417
1418 zr->v4l_grab_frame = frame;
1419
1420 /* Set zr36057 video front end and enable video */
1421
1422 /* Buffer address */
1423
1424 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus;
1425 btwrite(reg, ZR36057_VDTR);
1426 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1427 reg += zr->v4l_settings.bytesperline;
1428 btwrite(reg, ZR36057_VDBR);
1429
1430 /* video stride, status, and frame grab register */
1431 reg = 0;
1432 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1433 reg += zr->v4l_settings.bytesperline;
1434 reg = (reg << ZR36057_VSSFGR_DispStride);
1435 reg |= ZR36057_VSSFGR_VidOvf;
1436 reg |= ZR36057_VSSFGR_SnapShot;
1437 reg |= ZR36057_VSSFGR_FrameGrab;
1438 btwrite(reg, ZR36057_VSSFGR);
1439
1440 btor(ZR36057_VDCR_VidEn,
1441 ZR36057_VDCR);
1442 }
1443 }
1444
1445 /* even if we don't grab, we do want to increment
1446 * the sequence counter to see lost frames */
1447 zr->v4l_grab_seq++;
1448 }
1449 #if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
1450 if (astat & ZR36057_ISR_CodRepIRQ) {
1451 zr->intr_counter_CodRepIRQ++;
1452 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n",
1453 ZR_DEVNAME(zr)));
1454 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR);
1455 }
1456 #endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */
1457
1458 #if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ)
1459 if ((astat & ZR36057_ISR_JPEGRepIRQ) &&
1460 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1461 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) {
1462 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) {
1463 char sv[BUZ_NUM_STAT_COM + 1];
1464 int i;
1465
1466 printk(KERN_INFO
1467 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
1468 ZR_DEVNAME(zr), stat,
1469 zr->jpg_settings.odd_even,
1470 zr->jpg_settings.field_per_buff,
1471 zr->JPEG_missed);
1472
1473 for (i = 0; i < BUZ_NUM_STAT_COM; i++)
1474 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0';
1475 sv[BUZ_NUM_STAT_COM] = 0;
1476 printk(KERN_INFO
1477 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n",
1478 ZR_DEVNAME(zr), sv,
1479 zr->jpg_que_tail,
1480 zr->jpg_dma_tail,
1481 zr->jpg_dma_head,
1482 zr->jpg_que_head);
1483 } else {
1484 /* Get statistics */
1485 if (zr->JPEG_missed > zr->JPEG_max_missed)
1486 zr->JPEG_max_missed = zr->JPEG_missed;
1487 if (zr->JPEG_missed < zr->JPEG_min_missed)
1488 zr->JPEG_min_missed = zr->JPEG_missed;
1489 }
1490
1491 if (zr36067_debug > 2 && zr->frame_num < 6) {
1492 int i;
1493
1494 printk(KERN_INFO "%s: seq=%ld stat_com:",
1495 ZR_DEVNAME(zr), zr->jpg_seq_num);
1496 for (i = 0; i < 4; i++) {
1497 printk(KERN_CONT " %08x",
1498 le32_to_cpu(zr->stat_com[i]));
1499 }
1500 printk(KERN_CONT "\n");
1501 }
1502 zr->frame_num++;
1503 zr->JPEG_missed = 0;
1504 zr->JPEG_error = 0;
1505 zoran_reap_stat_com(zr);
1506 zoran_feed_stat_com(zr);
1507 wake_up_interruptible(&zr->jpg_capq);
1508 }
1509 #endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
1510
1511 /* DATERR, too many fields missed, error processing */
1512 if ((astat & zr->card.jpeg_int) ||
1513 zr->JPEG_missed > 25 ||
1514 zr->JPEG_error == 1 ||
1515 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) &&
1516 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) {
1517 error_handler(zr, astat, stat);
1518 }
1519
1520 count++;
1521 if (count > 10) {
1522 dprintk(2, KERN_WARNING "%s: irq loop %d\n",
1523 ZR_DEVNAME(zr), count);
1524 if (count > 20) {
1525 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1526 dprintk(2,
1527 KERN_ERR
1528 "%s: IRQ lockup, cleared int mask\n",
1529 ZR_DEVNAME(zr));
1530 break;
1531 }
1532 }
1533 zr->last_isr = stat;
1534 }
1535 spin_unlock_irqrestore(&zr->spinlock, flags);
1536
1537 return IRQ_HANDLED;
1538 }
1539
1540 void
1541 zoran_set_pci_master (struct zoran *zr,
1542 int set_master)
1543 {
1544 if (set_master) {
1545 pci_set_master(zr->pci_dev);
1546 } else {
1547 u16 command;
1548
1549 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command);
1550 command &= ~PCI_COMMAND_MASTER;
1551 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command);
1552 }
1553 }
1554
1555 void
1556 zoran_init_hardware (struct zoran *zr)
1557 {
1558 /* Enable bus-mastering */
1559 zoran_set_pci_master(zr, 1);
1560
1561 /* Initialize the board */
1562 if (zr->card.init) {
1563 zr->card.init(zr);
1564 }
1565
1566 decoder_call(zr, core, init, 0);
1567 decoder_call(zr, video, s_std, zr->norm);
1568 decoder_call(zr, video, s_routing,
1569 zr->card.input[zr->input].muxsel, 0, 0);
1570
1571 encoder_call(zr, core, init, 0);
1572 encoder_call(zr, video, s_std_output, zr->norm);
1573 encoder_call(zr, video, s_routing, 0, 0, 0);
1574
1575 /* toggle JPEG codec sleep to sync PLL */
1576 jpeg_codec_sleep(zr, 1);
1577 jpeg_codec_sleep(zr, 0);
1578
1579 /*
1580 * set individual interrupt enables (without GIRQ1)
1581 * but don't global enable until zoran_open()
1582 */
1583 zr36057_init_vfe(zr);
1584
1585 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1586
1587 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
1588 }
1589
1590 void
1591 zr36057_restart (struct zoran *zr)
1592 {
1593 btwrite(0, ZR36057_SPGPPCR);
1594 mdelay(1);
1595 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
1596 mdelay(1);
1597
1598 /* assert P_Reset */
1599 btwrite(0, ZR36057_JPC);
1600 /* set up GPIO direction - all output */
1601 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
1602
1603 /* set up GPIO pins and guest bus timing */
1604 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1);
1605 }
1606
1607 /*
1608 * initialize video front end
1609 */
1610
1611 static void
1612 zr36057_init_vfe (struct zoran *zr)
1613 {
1614 u32 reg;
1615
1616 reg = btread(ZR36057_VFESPFR);
1617 reg |= ZR36057_VFESPFR_LittleEndian;
1618 reg &= ~ZR36057_VFESPFR_VCLKPol;
1619 reg |= ZR36057_VFESPFR_ExtFl;
1620 reg |= ZR36057_VFESPFR_TopField;
1621 btwrite(reg, ZR36057_VFESPFR);
1622 reg = btread(ZR36057_VDCR);
1623 if (pci_pci_problems & PCIPCI_TRITON)
1624 // || zr->revision < 1) // Revision 1 has also Triton support
1625 reg &= ~ZR36057_VDCR_Triton;
1626 else
1627 reg |= ZR36057_VDCR_Triton;
1628 btwrite(reg, ZR36057_VDCR);
1629 }
Linux with added FPC-III support