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sh_eth: R8A7740 supports packet shecksumming
[linux/fpc-iii.git] / drivers / media / pci / zoran / zoran_device.c
blob35b552c178dae86f3623024a36f81030c940781a
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: %*ph\n",
177 ZR_DEVNAME(zr), 8, guest);
178 }
179 }
180
181 void
182 detect_guest_activity (struct zoran *zr)
183 {
184 int timeout, i, j, res, guest[8], guest0[8], change[8][3];
185 ktime_t t0, t1;
186
187 dump_guests(zr);
188 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n",
189 ZR_DEVNAME(zr));
190 for (i = 1; i < 8; i++) { // Don't read jpeg codec here
191 guest0[i] = guest[i] = post_office_read(zr, i, 0);
192 }
193
194 timeout = 0;
195 j = 0;
196 t0 = ktime_get();
197 while (timeout < 10000) {
198 udelay(10);
199 timeout++;
200 for (i = 1; (i < 8) && (j < 8); i++) {
201 res = post_office_read(zr, i, 0);
202 if (res != guest[i]) {
203 t1 = ktime_get();
204 change[j][0] = ktime_to_us(ktime_sub(t1, t0));
205 t0 = t1;
206 change[j][1] = i;
207 change[j][2] = res;
208 j++;
209 guest[i] = res;
210 }
211 }
212 if (j >= 8)
213 break;
214 }
215
216 printk(KERN_INFO "%s: Guests: %*ph\n", ZR_DEVNAME(zr), 8, guest0);
217
218 if (j == 0) {
219 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr));
220 return;
221 }
222 for (i = 0; i < j; i++) {
223 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr),
224 change[i][0], change[i][1], change[i][2]);
225 }
226 }
227
228 /*
229 * JPEG Codec access
230 */
231
232 void
233 jpeg_codec_sleep (struct zoran *zr,
234 int sleep)
235 {
236 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep);
237 if (!sleep) {
238 dprintk(3,
239 KERN_DEBUG
240 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n",
241 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
242 udelay(500);
243 } else {
244 dprintk(3,
245 KERN_DEBUG
246 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n",
247 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
248 udelay(2);
249 }
250 }
251
252 int
253 jpeg_codec_reset (struct zoran *zr)
254 {
255 /* Take the codec out of sleep */
256 jpeg_codec_sleep(zr, 0);
257
258 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) {
259 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0,
260 0);
261 udelay(2);
262 } else {
263 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0);
264 udelay(2);
265 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1);
266 udelay(2);
267 }
268
269 return 0;
270 }
271
272 /*
273 * Set the registers for the size we have specified. Don't bother
274 * trying to understand this without the ZR36057 manual in front of
275 * you [AC].
276 *
277 * PS: The manual is free for download in .pdf format from
278 * www.zoran.com - nicely done those folks.
279 */
280
281 static void
282 zr36057_adjust_vfe (struct zoran *zr,
283 enum zoran_codec_mode mode)
284 {
285 u32 reg;
286
287 switch (mode) {
288 case BUZ_MODE_MOTION_DECOMPRESS:
289 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
290 reg = btread(ZR36057_VFEHCR);
291 if ((reg & (1 << 10)) && zr->card.type != LML33R10) {
292 reg += ((1 << 10) | 1);
293 }
294 btwrite(reg, ZR36057_VFEHCR);
295 break;
296 case BUZ_MODE_MOTION_COMPRESS:
297 case BUZ_MODE_IDLE:
298 default:
299 if ((zr->norm & V4L2_STD_NTSC) ||
300 (zr->card.type == LML33R10 &&
301 (zr->norm & V4L2_STD_PAL)))
302 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
303 else
304 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
305 reg = btread(ZR36057_VFEHCR);
306 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) {
307 reg -= ((1 << 10) | 1);
308 }
309 btwrite(reg, ZR36057_VFEHCR);
310 break;
311 }
312 }
313
314 /*
315 * set geometry
316 */
317
318 static void
319 zr36057_set_vfe (struct zoran *zr,
320 int video_width,
321 int video_height,
322 const struct zoran_format *format)
323 {
324 struct tvnorm *tvn;
325 unsigned HStart, HEnd, VStart, VEnd;
326 unsigned DispMode;
327 unsigned VidWinWid, VidWinHt;
328 unsigned hcrop1, hcrop2, vcrop1, vcrop2;
329 unsigned Wa, We, Ha, He;
330 unsigned X, Y, HorDcm, VerDcm;
331 u32 reg;
332 unsigned mask_line_size;
333
334 tvn = zr->timing;
335
336 Wa = tvn->Wa;
337 Ha = tvn->Ha;
338
339 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n",
340 ZR_DEVNAME(zr), video_width, video_height);
341
342 if (video_width < BUZ_MIN_WIDTH ||
343 video_height < BUZ_MIN_HEIGHT ||
344 video_width > Wa || video_height > Ha) {
345 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n",
346 ZR_DEVNAME(zr), video_width, video_height);
347 return;
348 }
349
350 /**** zr36057 ****/
351
352 /* horizontal */
353 VidWinWid = video_width;
354 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa);
355 We = (VidWinWid * 64) / X;
356 HorDcm = 64 - X;
357 hcrop1 = 2 * ((tvn->Wa - We) / 4);
358 hcrop2 = tvn->Wa - We - hcrop1;
359 HStart = tvn->HStart ? tvn->HStart : 1;
360 /* (Ronald) Original comment:
361 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+"
362 * this is false. It inverses chroma values on the LML33R10 (so Cr
363 * suddenly is shown as Cb and reverse, really cool effect if you
364 * want to see blue faces, not useful otherwise). So don't use |1.
365 * However, the DC10 has '0' as HStart, but does need |1, so we
366 * use a dirty check...
367 */
368 HEnd = HStart + tvn->Wa - 1;
369 HStart += hcrop1;
370 HEnd -= hcrop2;
371 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
372 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
373 if (zr->card.vfe_pol.hsync_pol)
374 reg |= ZR36057_VFEHCR_HSPol;
375 btwrite(reg, ZR36057_VFEHCR);
376
377 /* Vertical */
378 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2);
379 VidWinHt = DispMode ? video_height : video_height / 2;
380 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha);
381 He = (VidWinHt * 64) / Y;
382 VerDcm = 64 - Y;
383 vcrop1 = (tvn->Ha / 2 - He) / 2;
384 vcrop2 = tvn->Ha / 2 - He - vcrop1;
385 VStart = tvn->VStart;
386 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP
387 VStart += vcrop1;
388 VEnd -= vcrop2;
389 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
390 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
391 if (zr->card.vfe_pol.vsync_pol)
392 reg |= ZR36057_VFEVCR_VSPol;
393 btwrite(reg, ZR36057_VFEVCR);
394
395 /* scaler and pixel format */
396 reg = 0;
397 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm);
398 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm);
399 reg |= (DispMode << ZR36057_VFESPFR_DispMode);
400 /* RJ: I don't know, why the following has to be the opposite
401 * of the corresponding ZR36060 setting, but only this way
402 * we get the correct colors when uncompressing to the screen */
403 //reg |= ZR36057_VFESPFR_VCLKPol; /**/
404 /* RJ: Don't know if that is needed for NTSC also */
405 if (!(zr->norm & V4L2_STD_NTSC))
406 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang
407 reg |= ZR36057_VFESPFR_TopField;
408 if (HorDcm >= 48) {
409 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */
410 } else if (HorDcm >= 32) {
411 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */
412 } else if (HorDcm >= 16) {
413 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */
414 }
415 reg |= format->vfespfr;
416 btwrite(reg, ZR36057_VFESPFR);
417
418 /* display configuration */
419 reg = (16 << ZR36057_VDCR_MinPix)
420 | (VidWinHt << ZR36057_VDCR_VidWinHt)
421 | (VidWinWid << ZR36057_VDCR_VidWinWid);
422 if (pci_pci_problems & PCIPCI_TRITON)
423 // || zr->revision < 1) // Revision 1 has also Triton support
424 reg &= ~ZR36057_VDCR_Triton;
425 else
426 reg |= ZR36057_VDCR_Triton;
427 btwrite(reg, ZR36057_VDCR);
428
429 /* (Ronald) don't write this if overlay_mask = NULL */
430 if (zr->overlay_mask) {
431 /* Write overlay clipping mask data, but don't enable overlay clipping */
432 /* RJ: since this makes only sense on the screen, we use
433 * zr->overlay_settings.width instead of video_width */
434
435 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
436 reg = virt_to_bus(zr->overlay_mask);
437 btwrite(reg, ZR36057_MMTR);
438 reg = virt_to_bus(zr->overlay_mask + mask_line_size);
439 btwrite(reg, ZR36057_MMBR);
440 reg =
441 mask_line_size - (zr->overlay_settings.width +
442 31) / 32;
443 if (DispMode == 0)
444 reg += mask_line_size;
445 reg <<= ZR36057_OCR_MaskStride;
446 btwrite(reg, ZR36057_OCR);
447 }
448
449 zr36057_adjust_vfe(zr, zr->codec_mode);
450 }
451
452 /*
453 * Switch overlay on or off
454 */
455
456 void
457 zr36057_overlay (struct zoran *zr,
458 int on)
459 {
460 u32 reg;
461
462 if (on) {
463 /* do the necessary settings ... */
464 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
465
466 zr36057_set_vfe(zr,
467 zr->overlay_settings.width,
468 zr->overlay_settings.height,
469 zr->overlay_settings.format);
470
471 /* Start and length of each line MUST be 4-byte aligned.
472 * This should be already checked before the call to this routine.
473 * All error messages are internal driver checking only! */
474
475 /* video display top and bottom registers */
476 reg = (long) zr->vbuf_base +
477 zr->overlay_settings.x *
478 ((zr->overlay_settings.format->depth + 7) / 8) +
479 zr->overlay_settings.y *
480 zr->vbuf_bytesperline;
481 btwrite(reg, ZR36057_VDTR);
482 if (reg & 3)
483 dprintk(1,
484 KERN_ERR
485 "%s: zr36057_overlay() - video_address not aligned\n",
486 ZR_DEVNAME(zr));
487 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
488 reg += zr->vbuf_bytesperline;
489 btwrite(reg, ZR36057_VDBR);
490
491 /* video stride, status, and frame grab register */
492 reg = zr->vbuf_bytesperline -
493 zr->overlay_settings.width *
494 ((zr->overlay_settings.format->depth + 7) / 8);
495 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
496 reg += zr->vbuf_bytesperline;
497 if (reg & 3)
498 dprintk(1,
499 KERN_ERR
500 "%s: zr36057_overlay() - video_stride not aligned\n",
501 ZR_DEVNAME(zr));
502 reg = (reg << ZR36057_VSSFGR_DispStride);
503 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
504 btwrite(reg, ZR36057_VSSFGR);
505
506 /* Set overlay clipping */
507 if (zr->overlay_settings.clipcount > 0)
508 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
509
510 /* ... and switch it on */
511 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
512 } else {
513 /* Switch it off */
514 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
515 }
516 }
517
518 /*
519 * The overlay mask has one bit for each pixel on a scan line,
520 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
521 */
522
523 void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count)
524 {
525 struct zoran *zr = fh->zr;
526 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
527 u32 *mask;
528 int x, y, width, height;
529 unsigned i, j, k;
530
531 /* fill mask with one bits */
532 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
533
534 for (i = 0; i < count; ++i) {
535 /* pick up local copy of clip */
536 x = vp[i].c.left;
537 y = vp[i].c.top;
538 width = vp[i].c.width;
539 height = vp[i].c.height;
540
541 /* trim clips that extend beyond the window */
542 if (x < 0) {
543 width += x;
544 x = 0;
545 }
546 if (y < 0) {
547 height += y;
548 y = 0;
549 }
550 if (x + width > fh->overlay_settings.width) {
551 width = fh->overlay_settings.width - x;
552 }
553 if (y + height > fh->overlay_settings.height) {
554 height = fh->overlay_settings.height - y;
555 }
556
557 /* ignore degenerate clips */
558 if (height <= 0) {
559 continue;
560 }
561 if (width <= 0) {
562 continue;
563 }
564
565 /* apply clip for each scan line */
566 for (j = 0; j < height; ++j) {
567 /* reset bit for each pixel */
568 /* this can be optimized later if need be */
569 mask = fh->overlay_mask + (y + j) * mask_line_size;
570 for (k = 0; k < width; ++k) {
571 mask[(x + k) / 32] &=
572 ~((u32) 1 << (x + k) % 32);
573 }
574 }
575 }
576 }
577
578 /* Enable/Disable uncompressed memory grabbing of the 36057 */
579
580 void
581 zr36057_set_memgrab (struct zoran *zr,
582 int mode)
583 {
584 if (mode) {
585 /* We only check SnapShot and not FrameGrab here. SnapShot==1
586 * means a capture is already in progress, but FrameGrab==1
587 * doesn't necessary mean that. It's more correct to say a 1
588 * to 0 transition indicates a capture completed. If a
589 * capture is pending when capturing is tuned off, FrameGrab
590 * will be stuck at 1 until capturing is turned back on.
591 */
592 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot)
593 dprintk(1,
594 KERN_WARNING
595 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n",
596 ZR_DEVNAME(zr));
597
598 /* switch on VSync interrupts */
599 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
600 btor(zr->card.vsync_int, ZR36057_ICR); // SW
601
602 /* enable SnapShot */
603 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
604
605 /* Set zr36057 video front end and enable video */
606 zr36057_set_vfe(zr, zr->v4l_settings.width,
607 zr->v4l_settings.height,
608 zr->v4l_settings.format);
609
610 zr->v4l_memgrab_active = 1;
611 } else {
612 /* switch off VSync interrupts */
613 btand(~zr->card.vsync_int, ZR36057_ICR); // SW
614
615 zr->v4l_memgrab_active = 0;
616 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
617
618 /* reenable grabbing to screen if it was running */
619 if (zr->v4l_overlay_active) {
620 zr36057_overlay(zr, 1);
621 } else {
622 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
623 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
624 }
625 }
626 }
627
628 int
629 wait_grab_pending (struct zoran *zr)
630 {
631 unsigned long flags;
632
633 /* wait until all pending grabs are finished */
634
635 if (!zr->v4l_memgrab_active)
636 return 0;
637
638 wait_event_interruptible(zr->v4l_capq,
639 (zr->v4l_pend_tail == zr->v4l_pend_head));
640 if (signal_pending(current))
641 return -ERESTARTSYS;
642
643 spin_lock_irqsave(&zr->spinlock, flags);
644 zr36057_set_memgrab(zr, 0);
645 spin_unlock_irqrestore(&zr->spinlock, flags);
646
647 return 0;
648 }
649
650 /*****************************************************************************
651 * *
652 * Set up the Buz-specific MJPEG part *
653 * *
654 *****************************************************************************/
655
656 static inline void
657 set_frame (struct zoran *zr,
658 int val)
659 {
660 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val);
661 }
662
663 static void
664 set_videobus_dir (struct zoran *zr,
665 int val)
666 {
667 switch (zr->card.type) {
668 case LML33:
669 case LML33R10:
670 if (!lml33dpath)
671 GPIO(zr, 5, val);
672 else
673 GPIO(zr, 5, 1);
674 break;
675 default:
676 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR],
677 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val);
678 break;
679 }
680 }
681
682 static void
683 init_jpeg_queue (struct zoran *zr)
684 {
685 int i;
686
687 /* re-initialize DMA ring stuff */
688 zr->jpg_que_head = 0;
689 zr->jpg_dma_head = 0;
690 zr->jpg_dma_tail = 0;
691 zr->jpg_que_tail = 0;
692 zr->jpg_seq_num = 0;
693 zr->JPEG_error = 0;
694 zr->num_errors = 0;
695 zr->jpg_err_seq = 0;
696 zr->jpg_err_shift = 0;
697 zr->jpg_queued_num = 0;
698 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
699 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
700 }
701 for (i = 0; i < BUZ_NUM_STAT_COM; i++) {
702 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
703 }
704 }
705
706 static void
707 zr36057_set_jpg (struct zoran *zr,
708 enum zoran_codec_mode mode)
709 {
710 struct tvnorm *tvn;
711 u32 reg;
712
713 tvn = zr->timing;
714
715 /* assert P_Reset, disable code transfer, deassert Active */
716 btwrite(0, ZR36057_JPC);
717
718 /* MJPEG compression mode */
719 switch (mode) {
720
721 case BUZ_MODE_MOTION_COMPRESS:
722 default:
723 reg = ZR36057_JMC_MJPGCmpMode;
724 break;
725
726 case BUZ_MODE_MOTION_DECOMPRESS:
727 reg = ZR36057_JMC_MJPGExpMode;
728 reg |= ZR36057_JMC_SyncMstr;
729 /* RJ: The following is experimental - improves the output to screen */
730 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM
731 break;
732
733 case BUZ_MODE_STILL_COMPRESS:
734 reg = ZR36057_JMC_JPGCmpMode;
735 break;
736
737 case BUZ_MODE_STILL_DECOMPRESS:
738 reg = ZR36057_JMC_JPGExpMode;
739 break;
740
741 }
742 reg |= ZR36057_JMC_JPG;
743 if (zr->jpg_settings.field_per_buff == 1)
744 reg |= ZR36057_JMC_Fld_per_buff;
745 btwrite(reg, ZR36057_JMC);
746
747 /* vertical */
748 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR);
749 reg = (6 << ZR36057_VSP_VsyncSize) |
750 (tvn->Ht << ZR36057_VSP_FrmTot);
751 btwrite(reg, ZR36057_VSP);
752 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) |
753 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY);
754 btwrite(reg, ZR36057_FVAP);
755
756 /* horizontal */
757 if (zr->card.vfe_pol.hsync_pol)
758 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
759 else
760 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
761 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) |
762 (tvn->Wt << ZR36057_HSP_LineTot);
763 btwrite(reg, ZR36057_HSP);
764 reg = ((zr->jpg_settings.img_x +
765 tvn->HStart + 4) << ZR36057_FHAP_NAX) |
766 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX);
767 btwrite(reg, ZR36057_FHAP);
768
769 /* field process parameters */
770 if (zr->jpg_settings.odd_even)
771 reg = ZR36057_FPP_Odd_Even;
772 else
773 reg = 0;
774
775 btwrite(reg, ZR36057_FPP);
776
777 /* Set proper VCLK Polarity, else colors will be wrong during playback */
778 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR);
779
780 /* code base address */
781 reg = virt_to_bus(zr->stat_com);
782 btwrite(reg, ZR36057_JCBA);
783
784 /* FIFO threshold (FIFO is 160. double words) */
785 /* NOTE: decimal values here */
786 switch (mode) {
787
788 case BUZ_MODE_STILL_COMPRESS:
789 case BUZ_MODE_MOTION_COMPRESS:
790 if (zr->card.type != BUZ)
791 reg = 140;
792 else
793 reg = 60;
794 break;
795
796 case BUZ_MODE_STILL_DECOMPRESS:
797 case BUZ_MODE_MOTION_DECOMPRESS:
798 reg = 20;
799 break;
800
801 default:
802 reg = 80;
803 break;
804
805 }
806 btwrite(reg, ZR36057_JCFT);
807 zr36057_adjust_vfe(zr, mode);
808
809 }
810
811 void
812 print_interrupts (struct zoran *zr)
813 {
814 int res, noerr = 0;
815
816 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr));
817 if ((res = zr->field_counter) < -1 || res > 1) {
818 printk(KERN_CONT " FD:%d", res);
819 }
820 if ((res = zr->intr_counter_GIRQ1) != 0) {
821 printk(KERN_CONT " GIRQ1:%d", res);
822 noerr++;
823 }
824 if ((res = zr->intr_counter_GIRQ0) != 0) {
825 printk(KERN_CONT " GIRQ0:%d", res);
826 noerr++;
827 }
828 if ((res = zr->intr_counter_CodRepIRQ) != 0) {
829 printk(KERN_CONT " CodRepIRQ:%d", res);
830 noerr++;
831 }
832 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) {
833 printk(KERN_CONT " JPEGRepIRQ:%d", res);
834 noerr++;
835 }
836 if (zr->JPEG_max_missed) {
837 printk(KERN_CONT " JPEG delays: max=%d min=%d", zr->JPEG_max_missed,
838 zr->JPEG_min_missed);
839 }
840 if (zr->END_event_missed) {
841 printk(KERN_CONT " ENDs missed: %d", zr->END_event_missed);
842 }
843 //if (zr->jpg_queued_num) {
844 printk(KERN_CONT " queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail,
845 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head);
846 //}
847 if (!noerr) {
848 printk(KERN_CONT ": no interrupts detected.");
849 }
850 printk(KERN_CONT "\n");
851 }
852
853 void
854 clear_interrupt_counters (struct zoran *zr)
855 {
856 zr->intr_counter_GIRQ1 = 0;
857 zr->intr_counter_GIRQ0 = 0;
858 zr->intr_counter_CodRepIRQ = 0;
859 zr->intr_counter_JPEGRepIRQ = 0;
860 zr->field_counter = 0;
861 zr->IRQ1_in = 0;
862 zr->IRQ1_out = 0;
863 zr->JPEG_in = 0;
864 zr->JPEG_out = 0;
865 zr->JPEG_0 = 0;
866 zr->JPEG_1 = 0;
867 zr->END_event_missed = 0;
868 zr->JPEG_missed = 0;
869 zr->JPEG_max_missed = 0;
870 zr->JPEG_min_missed = 0x7fffffff;
871 }
872
873 static u32
874 count_reset_interrupt (struct zoran *zr)
875 {
876 u32 isr;
877
878 if ((isr = btread(ZR36057_ISR) & 0x78000000)) {
879 if (isr & ZR36057_ISR_GIRQ1) {
880 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR);
881 zr->intr_counter_GIRQ1++;
882 }
883 if (isr & ZR36057_ISR_GIRQ0) {
884 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR);
885 zr->intr_counter_GIRQ0++;
886 }
887 if (isr & ZR36057_ISR_CodRepIRQ) {
888 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR);
889 zr->intr_counter_CodRepIRQ++;
890 }
891 if (isr & ZR36057_ISR_JPEGRepIRQ) {
892 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR);
893 zr->intr_counter_JPEGRepIRQ++;
894 }
895 }
896 return isr;
897 }
898
899 void
900 jpeg_start (struct zoran *zr)
901 {
902 int reg;
903
904 zr->frame_num = 0;
905
906 /* deassert P_reset, disable code transfer, deassert Active */
907 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
908 /* stop flushing the internal code buffer */
909 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
910 /* enable code transfer */
911 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC);
912
913 /* clear IRQs */
914 btwrite(IRQ_MASK, ZR36057_ISR);
915 /* enable the JPEG IRQs */
916 btwrite(zr->card.jpeg_int |
917 ZR36057_ICR_JPEGRepIRQ |
918 ZR36057_ICR_IntPinEn,
919 ZR36057_ICR);
920
921 set_frame(zr, 0); // \FRAME
922
923 /* set the JPEG codec guest ID */
924 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) |
925 (0 << ZR36057_JCGI_JPEGuestReg);
926 btwrite(reg, ZR36057_JCGI);
927
928 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 &&
929 zr->card.video_codec == CODEC_TYPE_ZR36050) {
930 /* Enable processing on the ZR36016 */
931 if (zr->vfe)
932 zr36016_write(zr->vfe, 0, 1);
933
934 /* load the address of the GO register in the ZR36050 latch */
935 post_office_write(zr, 0, 0, 0);
936 }
937
938 /* assert Active */
939 btor(ZR36057_JPC_Active, ZR36057_JPC);
940
941 /* enable the Go generation */
942 btor(ZR36057_JMC_Go_en, ZR36057_JMC);
943 udelay(30);
944
945 set_frame(zr, 1); // /FRAME
946
947 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr));
948 }
949
950 void
951 zr36057_enable_jpg (struct zoran *zr,
952 enum zoran_codec_mode mode)
953 {
954 struct vfe_settings cap;
955 int field_size =
956 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff;
957
958 zr->codec_mode = mode;
959
960 cap.x = zr->jpg_settings.img_x;
961 cap.y = zr->jpg_settings.img_y;
962 cap.width = zr->jpg_settings.img_width;
963 cap.height = zr->jpg_settings.img_height;
964 cap.decimation =
965 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8);
966 cap.quality = zr->jpg_settings.jpg_comp.quality;
967
968 switch (mode) {
969
970 case BUZ_MODE_MOTION_COMPRESS: {
971 struct jpeg_app_marker app;
972 struct jpeg_com_marker com;
973
974 /* In motion compress mode, the decoder output must be enabled, and
975 * the video bus direction set to input.
976 */
977 set_videobus_dir(zr, 0);
978 decoder_call(zr, video, s_stream, 1);
979 encoder_call(zr, video, s_routing, 0, 0, 0);
980
981 /* Take the JPEG codec and the VFE out of sleep */
982 jpeg_codec_sleep(zr, 0);
983
984 /* set JPEG app/com marker */
985 app.appn = zr->jpg_settings.jpg_comp.APPn;
986 app.len = zr->jpg_settings.jpg_comp.APP_len;
987 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60);
988 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA,
989 sizeof(struct jpeg_app_marker), &app);
990
991 com.len = zr->jpg_settings.jpg_comp.COM_len;
992 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60);
993 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA,
994 sizeof(struct jpeg_com_marker), &com);
995
996 /* Setup the JPEG codec */
997 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE,
998 sizeof(int), &field_size);
999 zr->codec->set_video(zr->codec, zr->timing, &cap,
1000 &zr->card.vfe_pol);
1001 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION);
1002
1003 /* Setup the VFE */
1004 if (zr->vfe) {
1005 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE,
1006 sizeof(int), &field_size);
1007 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1008 &zr->card.vfe_pol);
1009 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION);
1010 }
1011
1012 init_jpeg_queue(zr);
1013 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1014
1015 clear_interrupt_counters(zr);
1016 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n",
1017 ZR_DEVNAME(zr));
1018 break;
1019 }
1020
1021 case BUZ_MODE_MOTION_DECOMPRESS:
1022 /* In motion decompression mode, the decoder output must be disabled, and
1023 * the video bus direction set to output.
1024 */
1025 decoder_call(zr, video, s_stream, 0);
1026 set_videobus_dir(zr, 1);
1027 encoder_call(zr, video, s_routing, 1, 0, 0);
1028
1029 /* Take the JPEG codec and the VFE out of sleep */
1030 jpeg_codec_sleep(zr, 0);
1031 /* Setup the VFE */
1032 if (zr->vfe) {
1033 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1034 &zr->card.vfe_pol);
1035 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION);
1036 }
1037 /* Setup the JPEG codec */
1038 zr->codec->set_video(zr->codec, zr->timing, &cap,
1039 &zr->card.vfe_pol);
1040 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION);
1041
1042 init_jpeg_queue(zr);
1043 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1044
1045 clear_interrupt_counters(zr);
1046 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n",
1047 ZR_DEVNAME(zr));
1048 break;
1049
1050 case BUZ_MODE_IDLE:
1051 default:
1052 /* shut down processing */
1053 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ),
1054 ZR36057_ICR);
1055 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ,
1056 ZR36057_ISR);
1057 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en
1058
1059 msleep(50);
1060
1061 set_videobus_dir(zr, 0);
1062 set_frame(zr, 1); // /FRAME
1063 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush
1064 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active
1065 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
1066 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
1067 jpeg_codec_reset(zr);
1068 jpeg_codec_sleep(zr, 1);
1069 zr36057_adjust_vfe(zr, mode);
1070
1071 decoder_call(zr, video, s_stream, 1);
1072 encoder_call(zr, video, s_routing, 0, 0, 0);
1073
1074 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
1075 break;
1076
1077 }
1078 }
1079
1080 /* when this is called the spinlock must be held */
1081 void
1082 zoran_feed_stat_com (struct zoran *zr)
1083 {
1084 /* move frames from pending queue to DMA */
1085
1086 int frame, i, max_stat_com;
1087
1088 max_stat_com =
1089 (zr->jpg_settings.TmpDcm ==
1090 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1);
1091
1092 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com &&
1093 zr->jpg_dma_head < zr->jpg_que_head) {
1094
1095 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME];
1096 if (zr->jpg_settings.TmpDcm == 1) {
1097 /* fill 1 stat_com entry */
1098 i = (zr->jpg_dma_head -
1099 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1100 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1101 break;
1102 zr->stat_com[i] =
1103 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1104 } else {
1105 /* fill 2 stat_com entries */
1106 i = ((zr->jpg_dma_head -
1107 zr->jpg_err_shift) & 1) * 2;
1108 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1109 break;
1110 zr->stat_com[i] =
1111 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1112 zr->stat_com[i + 1] =
1113 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1114 }
1115 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA;
1116 zr->jpg_dma_head++;
1117
1118 }
1119 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS)
1120 zr->jpg_queued_num++;
1121 }
1122
1123 /* when this is called the spinlock must be held */
1124 static void
1125 zoran_reap_stat_com (struct zoran *zr)
1126 {
1127 /* move frames from DMA queue to done queue */
1128
1129 int i;
1130 u32 stat_com;
1131 unsigned int seq;
1132 unsigned int dif;
1133 struct zoran_buffer *buffer;
1134 int frame;
1135
1136 /* In motion decompress we don't have a hardware frame counter,
1137 * we just count the interrupts here */
1138
1139 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1140 zr->jpg_seq_num++;
1141 }
1142 while (zr->jpg_dma_tail < zr->jpg_dma_head) {
1143 if (zr->jpg_settings.TmpDcm == 1)
1144 i = (zr->jpg_dma_tail -
1145 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1146 else
1147 i = ((zr->jpg_dma_tail -
1148 zr->jpg_err_shift) & 1) * 2 + 1;
1149
1150 stat_com = le32_to_cpu(zr->stat_com[i]);
1151
1152 if ((stat_com & 1) == 0) {
1153 return;
1154 }
1155 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1156 buffer = &zr->jpg_buffers.buffer[frame];
1157 v4l2_get_timestamp(&buffer->bs.timestamp);
1158
1159 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1160 buffer->bs.length = (stat_com & 0x7fffff) >> 1;
1161
1162 /* update sequence number with the help of the counter in stat_com */
1163
1164 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff;
1165 dif = (seq - zr->jpg_seq_num) & 0xff;
1166 zr->jpg_seq_num += dif;
1167 } else {
1168 buffer->bs.length = 0;
1169 }
1170 buffer->bs.seq =
1171 zr->jpg_settings.TmpDcm ==
1172 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
1173 buffer->state = BUZ_STATE_DONE;
1174
1175 zr->jpg_dma_tail++;
1176 }
1177 }
1178
1179 static void zoran_restart(struct zoran *zr)
1180 {
1181 /* Now the stat_comm buffer is ready for restart */
1182 unsigned int status = 0;
1183 int mode;
1184
1185 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1186 decoder_call(zr, video, g_input_status, &status);
1187 mode = CODEC_DO_COMPRESSION;
1188 } else {
1189 status = V4L2_IN_ST_NO_SIGNAL;
1190 mode = CODEC_DO_EXPANSION;
1191 }
1192 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1193 !(status & V4L2_IN_ST_NO_SIGNAL)) {
1194 /********** RESTART code *************/
1195 jpeg_codec_reset(zr);
1196 zr->codec->set_mode(zr->codec, mode);
1197 zr36057_set_jpg(zr, zr->codec_mode);
1198 jpeg_start(zr);
1199
1200 if (zr->num_errors <= 8)
1201 dprintk(2, KERN_INFO "%s: Restart\n",
1202 ZR_DEVNAME(zr));
1203
1204 zr->JPEG_missed = 0;
1205 zr->JPEG_error = 2;
1206 /********** End RESTART code ***********/
1207 }
1208 }
1209
1210 static void
1211 error_handler (struct zoran *zr,
1212 u32 astat,
1213 u32 stat)
1214 {
1215 int i;
1216
1217 /* This is JPEG error handling part */
1218 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS &&
1219 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) {
1220 return;
1221 }
1222
1223 if ((stat & 1) == 0 &&
1224 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS &&
1225 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) {
1226 /* No free buffers... */
1227 zoran_reap_stat_com(zr);
1228 zoran_feed_stat_com(zr);
1229 wake_up_interruptible(&zr->jpg_capq);
1230 zr->JPEG_missed = 0;
1231 return;
1232 }
1233
1234 if (zr->JPEG_error == 1) {
1235 zoran_restart(zr);
1236 return;
1237 }
1238
1239 /*
1240 * First entry: error just happened during normal operation
1241 *
1242 * In BUZ_MODE_MOTION_COMPRESS:
1243 *
1244 * Possible glitch in TV signal. In this case we should
1245 * stop the codec and wait for good quality signal before
1246 * restarting it to avoid further problems
1247 *
1248 * In BUZ_MODE_MOTION_DECOMPRESS:
1249 *
1250 * Bad JPEG frame: we have to mark it as processed (codec crashed
1251 * and was not able to do it itself), and to remove it from queue.
1252 */
1253 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1254 udelay(1);
1255 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8;
1256 btwrite(0, ZR36057_JPC);
1257 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
1258 jpeg_codec_reset(zr);
1259 jpeg_codec_sleep(zr, 1);
1260 zr->JPEG_error = 1;
1261 zr->num_errors++;
1262
1263 /* Report error */
1264 if (zr36067_debug > 1 && zr->num_errors <= 8) {
1265 long frame;
1266 int j;
1267
1268 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1269 printk(KERN_ERR
1270 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ",
1271 ZR_DEVNAME(zr), stat, zr->last_isr,
1272 zr->jpg_que_tail, zr->jpg_dma_tail,
1273 zr->jpg_dma_head, zr->jpg_que_head,
1274 zr->jpg_seq_num, frame);
1275 printk(KERN_INFO "stat_com frames:");
1276 for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1277 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
1278 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus)
1279 printk(KERN_CONT "% d->%d", j, i);
1280 }
1281 }
1282 printk(KERN_CONT "\n");
1283 }
1284 /* Find an entry in stat_com and rotate contents */
1285 if (zr->jpg_settings.TmpDcm == 1)
1286 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1287 else
1288 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1289 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1290 /* Mimic zr36067 operation */
1291 zr->stat_com[i] |= cpu_to_le32(1);
1292 if (zr->jpg_settings.TmpDcm != 1)
1293 zr->stat_com[i + 1] |= cpu_to_le32(1);
1294 /* Refill */
1295 zoran_reap_stat_com(zr);
1296 zoran_feed_stat_com(zr);
1297 wake_up_interruptible(&zr->jpg_capq);
1298 /* Find an entry in stat_com again after refill */
1299 if (zr->jpg_settings.TmpDcm == 1)
1300 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1301 else
1302 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1303 }
1304 if (i) {
1305 /* Rotate stat_comm entries to make current entry first */
1306 int j;
1307 __le32 bus_addr[BUZ_NUM_STAT_COM];
1308
1309 /* Here we are copying the stat_com array, which
1310 * is already in little endian format, so
1311 * no endian conversions here
1312 */
1313 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr));
1314
1315 for (j = 0; j < BUZ_NUM_STAT_COM; j++)
1316 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM];
1317
1318 zr->jpg_err_shift += i;
1319 zr->jpg_err_shift &= BUZ_MASK_STAT_COM;
1320 }
1321 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)
1322 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */
1323 zoran_restart(zr);
1324 }
1325
1326 irqreturn_t
1327 zoran_irq (int irq,
1328 void *dev_id)
1329 {
1330 u32 stat, astat;
1331 int count;
1332 struct zoran *zr;
1333 unsigned long flags;
1334
1335 zr = dev_id;
1336 count = 0;
1337
1338 if (zr->testing) {
1339 /* Testing interrupts */
1340 spin_lock_irqsave(&zr->spinlock, flags);
1341 while ((stat = count_reset_interrupt(zr))) {
1342 if (count++ > 100) {
1343 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1344 dprintk(1,
1345 KERN_ERR
1346 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n",
1347 ZR_DEVNAME(zr), stat);
1348 wake_up_interruptible(&zr->test_q);
1349 }
1350 }
1351 zr->last_isr = stat;
1352 spin_unlock_irqrestore(&zr->spinlock, flags);
1353 return IRQ_HANDLED;
1354 }
1355
1356 spin_lock_irqsave(&zr->spinlock, flags);
1357 while (1) {
1358 /* get/clear interrupt status bits */
1359 stat = count_reset_interrupt(zr);
1360 astat = stat & IRQ_MASK;
1361 if (!astat) {
1362 break;
1363 }
1364 dprintk(4,
1365 KERN_DEBUG
1366 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n",
1367 astat, btread(ZR36057_ICR));
1368 if (astat & zr->card.vsync_int) { // SW
1369
1370 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1371 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1372 /* count missed interrupts */
1373 zr->JPEG_missed++;
1374 }
1375 //post_office_read(zr,1,0);
1376 /* Interrupts may still happen when
1377 * zr->v4l_memgrab_active is switched off.
1378 * We simply ignore them */
1379
1380 if (zr->v4l_memgrab_active) {
1381 /* A lot more checks should be here ... */
1382 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0)
1383 dprintk(1,
1384 KERN_WARNING
1385 "%s: BuzIRQ with SnapShot off ???\n",
1386 ZR_DEVNAME(zr));
1387
1388 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) {
1389 /* There is a grab on a frame going on, check if it has finished */
1390 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) {
1391 /* it is finished, notify the user */
1392
1393 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
1394 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
1395 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
1396 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
1397 zr->v4l_pend_tail++;
1398 }
1399 }
1400
1401 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE)
1402 wake_up_interruptible(&zr->v4l_capq);
1403
1404 /* Check if there is another grab queued */
1405
1406 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE &&
1407 zr->v4l_pend_tail != zr->v4l_pend_head) {
1408 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
1409 u32 reg;
1410
1411 zr->v4l_grab_frame = frame;
1412
1413 /* Set zr36057 video front end and enable video */
1414
1415 /* Buffer address */
1416
1417 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus;
1418 btwrite(reg, ZR36057_VDTR);
1419 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1420 reg += zr->v4l_settings.bytesperline;
1421 btwrite(reg, ZR36057_VDBR);
1422
1423 /* video stride, status, and frame grab register */
1424 reg = 0;
1425 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1426 reg += zr->v4l_settings.bytesperline;
1427 reg = (reg << ZR36057_VSSFGR_DispStride);
1428 reg |= ZR36057_VSSFGR_VidOvf;
1429 reg |= ZR36057_VSSFGR_SnapShot;
1430 reg |= ZR36057_VSSFGR_FrameGrab;
1431 btwrite(reg, ZR36057_VSSFGR);
1432
1433 btor(ZR36057_VDCR_VidEn,
1434 ZR36057_VDCR);
1435 }
1436 }
1437
1438 /* even if we don't grab, we do want to increment
1439 * the sequence counter to see lost frames */
1440 zr->v4l_grab_seq++;
1441 }
1442 #if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
1443 if (astat & ZR36057_ISR_CodRepIRQ) {
1444 zr->intr_counter_CodRepIRQ++;
1445 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n",
1446 ZR_DEVNAME(zr)));
1447 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR);
1448 }
1449 #endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */
1450
1451 #if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ)
1452 if ((astat & ZR36057_ISR_JPEGRepIRQ) &&
1453 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1454 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) {
1455 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) {
1456 char sv[BUZ_NUM_STAT_COM + 1];
1457 int i;
1458
1459 printk(KERN_INFO
1460 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
1461 ZR_DEVNAME(zr), stat,
1462 zr->jpg_settings.odd_even,
1463 zr->jpg_settings.field_per_buff,
1464 zr->JPEG_missed);
1465
1466 for (i = 0; i < BUZ_NUM_STAT_COM; i++)
1467 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0';
1468 sv[BUZ_NUM_STAT_COM] = 0;
1469 printk(KERN_INFO
1470 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n",
1471 ZR_DEVNAME(zr), sv,
1472 zr->jpg_que_tail,
1473 zr->jpg_dma_tail,
1474 zr->jpg_dma_head,
1475 zr->jpg_que_head);
1476 } else {
1477 /* Get statistics */
1478 if (zr->JPEG_missed > zr->JPEG_max_missed)
1479 zr->JPEG_max_missed = zr->JPEG_missed;
1480 if (zr->JPEG_missed < zr->JPEG_min_missed)
1481 zr->JPEG_min_missed = zr->JPEG_missed;
1482 }
1483
1484 if (zr36067_debug > 2 && zr->frame_num < 6) {
1485 int i;
1486
1487 printk(KERN_INFO "%s: seq=%ld stat_com:",
1488 ZR_DEVNAME(zr), zr->jpg_seq_num);
1489 for (i = 0; i < 4; i++) {
1490 printk(KERN_CONT " %08x",
1491 le32_to_cpu(zr->stat_com[i]));
1492 }
1493 printk(KERN_CONT "\n");
1494 }
1495 zr->frame_num++;
1496 zr->JPEG_missed = 0;
1497 zr->JPEG_error = 0;
1498 zoran_reap_stat_com(zr);
1499 zoran_feed_stat_com(zr);
1500 wake_up_interruptible(&zr->jpg_capq);
1501 }
1502 #endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
1503
1504 /* DATERR, too many fields missed, error processing */
1505 if ((astat & zr->card.jpeg_int) ||
1506 zr->JPEG_missed > 25 ||
1507 zr->JPEG_error == 1 ||
1508 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) &&
1509 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) {
1510 error_handler(zr, astat, stat);
1511 }
1512
1513 count++;
1514 if (count > 10) {
1515 dprintk(2, KERN_WARNING "%s: irq loop %d\n",
1516 ZR_DEVNAME(zr), count);
1517 if (count > 20) {
1518 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1519 dprintk(2,
1520 KERN_ERR
1521 "%s: IRQ lockup, cleared int mask\n",
1522 ZR_DEVNAME(zr));
1523 break;
1524 }
1525 }
1526 zr->last_isr = stat;
1527 }
1528 spin_unlock_irqrestore(&zr->spinlock, flags);
1529
1530 return IRQ_HANDLED;
1531 }
1532
1533 void
1534 zoran_set_pci_master (struct zoran *zr,
1535 int set_master)
1536 {
1537 if (set_master) {
1538 pci_set_master(zr->pci_dev);
1539 } else {
1540 u16 command;
1541
1542 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command);
1543 command &= ~PCI_COMMAND_MASTER;
1544 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command);
1545 }
1546 }
1547
1548 void
1549 zoran_init_hardware (struct zoran *zr)
1550 {
1551 /* Enable bus-mastering */
1552 zoran_set_pci_master(zr, 1);
1553
1554 /* Initialize the board */
1555 if (zr->card.init) {
1556 zr->card.init(zr);
1557 }
1558
1559 decoder_call(zr, core, init, 0);
1560 decoder_call(zr, video, s_std, zr->norm);
1561 decoder_call(zr, video, s_routing,
1562 zr->card.input[zr->input].muxsel, 0, 0);
1563
1564 encoder_call(zr, core, init, 0);
1565 encoder_call(zr, video, s_std_output, zr->norm);
1566 encoder_call(zr, video, s_routing, 0, 0, 0);
1567
1568 /* toggle JPEG codec sleep to sync PLL */
1569 jpeg_codec_sleep(zr, 1);
1570 jpeg_codec_sleep(zr, 0);
1571
1572 /*
1573 * set individual interrupt enables (without GIRQ1)
1574 * but don't global enable until zoran_open()
1575 */
1576 zr36057_init_vfe(zr);
1577
1578 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1579
1580 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
1581 }
1582
1583 void
1584 zr36057_restart (struct zoran *zr)
1585 {
1586 btwrite(0, ZR36057_SPGPPCR);
1587 mdelay(1);
1588 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
1589 mdelay(1);
1590
1591 /* assert P_Reset */
1592 btwrite(0, ZR36057_JPC);
1593 /* set up GPIO direction - all output */
1594 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
1595
1596 /* set up GPIO pins and guest bus timing */
1597 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1);
1598 }
1599
1600 /*
1601 * initialize video front end
1602 */
1603
1604 static void
1605 zr36057_init_vfe (struct zoran *zr)
1606 {
1607 u32 reg;
1608
1609 reg = btread(ZR36057_VFESPFR);
1610 reg |= ZR36057_VFESPFR_LittleEndian;
1611 reg &= ~ZR36057_VFESPFR_VCLKPol;
1612 reg |= ZR36057_VFESPFR_ExtFl;
1613 reg |= ZR36057_VFESPFR_TopField;
1614 btwrite(reg, ZR36057_VFESPFR);
1615 reg = btread(ZR36057_VDCR);
1616 if (pci_pci_problems & PCIPCI_TRITON)
1617 // || zr->revision < 1) // Revision 1 has also Triton support
1618 reg &= ~ZR36057_VDCR_Triton;
1619 else
1620 reg |= ZR36057_VDCR_Triton;
1621 btwrite(reg, ZR36057_VDCR);
1622 }
Linux with added FPC-III support