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[media] lm3560: simplify boolean tests
[mirror_ubuntu-artful-kernel.git] / drivers / media / pci / zoran / zoran_device.c
CommitLineData
1da177e4
LT		 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/...)
d56410e0 7 *
1da177e4
LT		 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
1da177e4
LT		 30#include <linux/types.h>
31#include <linux/kernel.h>
32#include <linux/module.h>
33#include <linux/vmalloc.h>
1da177e4
LT		 34
35#include <linux/interrupt.h>
36#include <linux/proc_fs.h>
37#include <linux/i2c.h>
38#include <linux/i2c-algo-bit.h>
107063c6
HV		 39#include <linux/videodev2.h>
40#include <media/v4l2-common.h>
1da177e4
LT		 41#include <linux/spinlock.h>
42#include <linux/sem.h>
43
44#include <linux/pci.h>
1da177e4
LT		 45#include <linux/delay.h>
46#include <linux/wait.h>
47
9a6ab769 48#include <asm/byteorder.h>
1da177e4
LT		 49#include <asm/io.h>
50
51#include "videocodec.h"
52#include "zoran.h"
53#include "zoran_device.h"
18b548ca 54#include "zoran_card.h"
1da177e4
LT		 55
56#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \
57 ZR36057_ISR_GIRQ1 | \
58 ZR36057_ISR_JPEGRepIRQ )
59
90ab5ee9 60static bool lml33dpath; /* default = 0
ff699e6b 61 * 1 will use digital path in capture
1da177e4
LT		 62 * mode instead of analog. It can be
63 * used for picture adjustments using
64 * tool like xawtv while watching image
65 * on TV monitor connected to the output.
66 * However, due to absence of 75 Ohm
67 * load on Bt819 input, there will be
68 * some image imperfections */
69
60e3cac4 70module_param(lml33dpath, bool, 0644);
1da177e4
LT		 71MODULE_PARM_DESC(lml33dpath,
72 "Use digital path capture mode (on LML33 cards)");
73
74static void
75zr36057_init_vfe (struct zoran *zr);
76
77/*
78 * General Purpose I/O and Guest bus access
79 */
80
81/*
82 * This is a bit tricky. When a board lacks a GPIO function, the corresponding
83 * GPIO bit number in the card_info structure is set to 0.
84 */
85
86void
87GPIO (struct zoran *zr,
88 int bit,
89 unsigned int value)
90{
91 u32 reg;
92 u32 mask;
93
94 /* Make sure the bit number is legal
95 * A bit number of -1 (lacking) gives a mask of 0,
96 * making it harmless */
97 mask = (1 << (24 + bit)) & 0xff000000;
98 reg = btread(ZR36057_GPPGCR1) & ~mask;
99 if (value) {
100 reg |= mask;
101 }
102 btwrite(reg, ZR36057_GPPGCR1);
103 udelay(1);
104}
105
106/*
107 * Wait til post office is no longer busy
108 */
109
110int
111post_office_wait (struct zoran *zr)
112{
113 u32 por;
114
115// while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) {
116 while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) {
117 /* wait for something to happen */
118 }
119 if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) {
120 /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */
121 dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr),
122 por);
123 return -1;
124 }
125
126 return 0;
127}
128
129int
130post_office_write (struct zoran *zr,
131 unsigned int guest,
132 unsigned int reg,
133 unsigned int value)
134{
135 u32 por;
136
137 por =
138 ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) |
139 ((reg & 7) << 16) | (value & 0xFF);
140 btwrite(por, ZR36057_POR);
141
142 return post_office_wait(zr);
143}
144
145int
146post_office_read (struct zoran *zr,
147 unsigned int guest,
148 unsigned int reg)
149{
150 u32 por;
151
152 por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16);
153 btwrite(por, ZR36057_POR);
154 if (post_office_wait(zr) < 0) {
155 return -1;
156 }
157
158 return btread(ZR36057_POR) & 0xFF;
159}
160
161/*
162 * detect guests
163 */
164
165static void
166dump_guests (struct zoran *zr)
167{
18b548ca 168 if (zr36067_debug > 2) {
1da177e4
LT		 169 int i, guest[8];
170
171 for (i = 1; i < 8; i++) { // Don't read jpeg codec here
172 guest[i] = post_office_read(zr, i, 0);
173 }
174
175 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
176
177 for (i = 1; i < 8; i++) {
178 printk(" 0x%02x", guest[i]);
179 }
180 printk("\n");
181 }
182}
183
184static inline unsigned long
185get_time (void)
186{
187 struct timeval tv;
188
189 do_gettimeofday(&tv);
190 return (1000000 * tv.tv_sec + tv.tv_usec);
191}
192
193void
194detect_guest_activity (struct zoran *zr)
195{
196 int timeout, i, j, res, guest[8], guest0[8], change[8][3];
197 unsigned long t0, t1;
198
199 dump_guests(zr);
200 printk(KERN_INFO "%s: Detecting guests activity, please wait...\n",
201 ZR_DEVNAME(zr));
202 for (i = 1; i < 8; i++) { // Don't read jpeg codec here
203 guest0[i] = guest[i] = post_office_read(zr, i, 0);
204 }
205
206 timeout = 0;
207 j = 0;
208 t0 = get_time();
209 while (timeout < 10000) {
210 udelay(10);
211 timeout++;
212 for (i = 1; (i < 8) && (j < 8); i++) {
213 res = post_office_read(zr, i, 0);
214 if (res != guest[i]) {
215 t1 = get_time();
216 change[j][0] = (t1 - t0);
217 t0 = t1;
218 change[j][1] = i;
219 change[j][2] = res;
220 j++;
221 guest[i] = res;
222 }
223 }
224 if (j >= 8)
225 break;
226 }
227 printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
228
229 for (i = 1; i < 8; i++) {
230 printk(" 0x%02x", guest0[i]);
231 }
232 printk("\n");
233 if (j == 0) {
234 printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr));
235 return;
236 }
237 for (i = 0; i < j; i++) {
238 printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr),
239 change[i][0], change[i][1], change[i][2]);
240 }
241}
242
243/*
244 * JPEG Codec access
245 */
246
247void
248jpeg_codec_sleep (struct zoran *zr,
249 int sleep)
250{
6165894f 251 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep);
1da177e4
LT		 252 if (!sleep) {
253 dprintk(3,
254 KERN_DEBUG
255 "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n",
256 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
257 udelay(500);
258 } else {
259 dprintk(3,
260 KERN_DEBUG
261 "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n",
262 ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
263 udelay(2);
264 }
265}
266
267int
268jpeg_codec_reset (struct zoran *zr)
269{
270 /* Take the codec out of sleep */
271 jpeg_codec_sleep(zr, 0);
272
273 if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) {
274 post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0,
275 0);
276 udelay(2);
277 } else {
6165894f 278 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0);
1da177e4 279 udelay(2);
6165894f 280 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1);
1da177e4
LT		 281 udelay(2);
282 }
283
284 return 0;
285}
286
287/*
288 * Set the registers for the size we have specified. Don't bother
289 * trying to understand this without the ZR36057 manual in front of
290 * you [AC].
291 *
292 * PS: The manual is free for download in .pdf format from
293 * www.zoran.com - nicely done those folks.
294 */
295
296static void
297zr36057_adjust_vfe (struct zoran *zr,
298 enum zoran_codec_mode mode)
299{
300 u32 reg;
301
302 switch (mode) {
303 case BUZ_MODE_MOTION_DECOMPRESS:
304 btand(~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 case BUZ_MODE_MOTION_COMPRESS:
312 case BUZ_MODE_IDLE:
313 default:
107063c6 314 if ((zr->norm & V4L2_STD_NTSC) ||
1da177e4 315 (zr->card.type == LML33R10 &&
107063c6 316 (zr->norm & V4L2_STD_PAL)))
1da177e4
LT		 317 btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
318 else
319 btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
320 reg = btread(ZR36057_VFEHCR);
321 if (!(reg & (1 << 10)) && zr->card.type != LML33R10) {
322 reg -= ((1 << 10) | 1);
323 }
324 btwrite(reg, ZR36057_VFEHCR);
325 break;
326 }
327}
328
329/*
330 * set geometry
331 */
332
333static void
334zr36057_set_vfe (struct zoran *zr,
335 int video_width,
336 int video_height,
337 const struct zoran_format *format)
338{
339 struct tvnorm *tvn;
340 unsigned HStart, HEnd, VStart, VEnd;
341 unsigned DispMode;
342 unsigned VidWinWid, VidWinHt;
343 unsigned hcrop1, hcrop2, vcrop1, vcrop2;
344 unsigned Wa, We, Ha, He;
345 unsigned X, Y, HorDcm, VerDcm;
346 u32 reg;
347 unsigned mask_line_size;
348
349 tvn = zr->timing;
350
351 Wa = tvn->Wa;
352 Ha = tvn->Ha;
353
354 dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n",
355 ZR_DEVNAME(zr), video_width, video_height);
356
1da177e4
LT		 357 if (video_width < BUZ_MIN_WIDTH ||
358 video_height < BUZ_MIN_HEIGHT ||
359 video_width > Wa || video_height > Ha) {
360 dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n",
361 ZR_DEVNAME(zr), video_width, video_height);
362 return;
363 }
364
365 /**** zr36057 ****/
366
367 /* horizontal */
368 VidWinWid = video_width;
e9e24cee 369 X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa);
1da177e4
LT		 370 We = (VidWinWid * 64) / X;
371 HorDcm = 64 - X;
372 hcrop1 = 2 * ((tvn->Wa - We) / 4);
373 hcrop2 = tvn->Wa - We - hcrop1;
374 HStart = tvn->HStart ? tvn->HStart : 1;
375 /* (Ronald) Original comment:
376 * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+"
377 * this is false. It inverses chroma values on the LML33R10 (so Cr
378 * suddenly is shown as Cb and reverse, really cool effect if you
379 * want to see blue faces, not useful otherwise). So don't use |1.
380 * However, the DC10 has '0' as HStart, but does need |1, so we
381 * use a dirty check...
382 */
383 HEnd = HStart + tvn->Wa - 1;
384 HStart += hcrop1;
385 HEnd -= hcrop2;
386 reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
387 | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
388 if (zr->card.vfe_pol.hsync_pol)
389 reg |= ZR36057_VFEHCR_HSPol;
390 btwrite(reg, ZR36057_VFEHCR);
391
392 /* Vertical */
393 DispMode = !(video_height > BUZ_MAX_HEIGHT / 2);
394 VidWinHt = DispMode ? video_height : video_height / 2;
e9e24cee 395 Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha);
1da177e4
LT		 396 He = (VidWinHt * 64) / Y;
397 VerDcm = 64 - Y;
398 vcrop1 = (tvn->Ha / 2 - He) / 2;
399 vcrop2 = tvn->Ha / 2 - He - vcrop1;
400 VStart = tvn->VStart;
401 VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP
402 VStart += vcrop1;
403 VEnd -= vcrop2;
404 reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
405 | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
406 if (zr->card.vfe_pol.vsync_pol)
407 reg |= ZR36057_VFEVCR_VSPol;
408 btwrite(reg, ZR36057_VFEVCR);
409
410 /* scaler and pixel format */
411 reg = 0;
412 reg |= (HorDcm << ZR36057_VFESPFR_HorDcm);
413 reg |= (VerDcm << ZR36057_VFESPFR_VerDcm);
414 reg |= (DispMode << ZR36057_VFESPFR_DispMode);
1da177e4
LT		 415 /* RJ: I don't know, why the following has to be the opposite
416 * of the corresponding ZR36060 setting, but only this way
417 * we get the correct colors when uncompressing to the screen */
418 //reg |= ZR36057_VFESPFR_VCLKPol; /**/
419 /* RJ: Don't know if that is needed for NTSC also */
107063c6 420 if (!(zr->norm & V4L2_STD_NTSC))
1da177e4
LT		 421 reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang
422 reg |= ZR36057_VFESPFR_TopField;
1da177e4
LT		 423 if (HorDcm >= 48) {
424 reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */
425 } else if (HorDcm >= 32) {
426 reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */
427 } else if (HorDcm >= 16) {
428 reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */
429 }
603d6f2c 430 reg |= format->vfespfr;
1da177e4
LT		 431 btwrite(reg, ZR36057_VFESPFR);
432
433 /* display configuration */
434 reg = (16 << ZR36057_VDCR_MinPix)
435 | (VidWinHt << ZR36057_VDCR_VidWinHt)
436 | (VidWinWid << ZR36057_VDCR_VidWinWid);
437 if (pci_pci_problems & PCIPCI_TRITON)
438 // || zr->revision < 1) // Revision 1 has also Triton support
439 reg &= ~ZR36057_VDCR_Triton;
440 else
441 reg |= ZR36057_VDCR_Triton;
442 btwrite(reg, ZR36057_VDCR);
443
444 /* (Ronald) don't write this if overlay_mask = NULL */
445 if (zr->overlay_mask) {
446 /* Write overlay clipping mask data, but don't enable overlay clipping */
d56410e0 447 /* RJ: since this makes only sense on the screen, we use
1da177e4
LT		 448 * zr->overlay_settings.width instead of video_width */
449
450 mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
451 reg = virt_to_bus(zr->overlay_mask);
452 btwrite(reg, ZR36057_MMTR);
453 reg = virt_to_bus(zr->overlay_mask + mask_line_size);
454 btwrite(reg, ZR36057_MMBR);
455 reg =
456 mask_line_size - (zr->overlay_settings.width +
457 31) / 32;
458 if (DispMode == 0)
459 reg += mask_line_size;
460 reg <<= ZR36057_OCR_MaskStride;
461 btwrite(reg, ZR36057_OCR);
462 }
463
464 zr36057_adjust_vfe(zr, zr->codec_mode);
465}
466
467/*
468 * Switch overlay on or off
469 */
470
471void
472zr36057_overlay (struct zoran *zr,
473 int on)
474{
475 u32 reg;
476
477 if (on) {
478 /* do the necessary settings ... */
479 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
480
481 zr36057_set_vfe(zr,
482 zr->overlay_settings.width,
483 zr->overlay_settings.height,
484 zr->overlay_settings.format);
485
486 /* Start and length of each line MUST be 4-byte aligned.
698f9315 487 * This should be already checked before the call to this routine.
1da177e4
LT		 488 * All error messages are internal driver checking only! */
489
490 /* video display top and bottom registers */
7f6adeaf 491 reg = (long) zr->vbuf_base +
1da177e4
LT		 492 zr->overlay_settings.x *
493 ((zr->overlay_settings.format->depth + 7) / 8) +
494 zr->overlay_settings.y *
7f6adeaf 495 zr->vbuf_bytesperline;
1da177e4
LT		 496 btwrite(reg, ZR36057_VDTR);
497 if (reg & 3)
498 dprintk(1,
499 KERN_ERR
500 "%s: zr36057_overlay() - video_address not aligned\n",
501 ZR_DEVNAME(zr));
502 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
7f6adeaf 503 reg += zr->vbuf_bytesperline;
1da177e4
LT		 504 btwrite(reg, ZR36057_VDBR);
505
506 /* video stride, status, and frame grab register */
7f6adeaf 507 reg = zr->vbuf_bytesperline -
1da177e4
LT		 508 zr->overlay_settings.width *
509 ((zr->overlay_settings.format->depth + 7) / 8);
510 if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
7f6adeaf 511 reg += zr->vbuf_bytesperline;
1da177e4
LT		 512 if (reg & 3)
513 dprintk(1,
514 KERN_ERR
515 "%s: zr36057_overlay() - video_stride not aligned\n",
516 ZR_DEVNAME(zr));
517 reg = (reg << ZR36057_VSSFGR_DispStride);
518 reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
519 btwrite(reg, ZR36057_VSSFGR);
520
521 /* Set overlay clipping */
522 if (zr->overlay_settings.clipcount > 0)
523 btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
524
525 /* ... and switch it on */
526 btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
527 } else {
528 /* Switch it off */
529 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
530 }
531}
532
533/*
534 * The overlay mask has one bit for each pixel on a scan line,
535 * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
536 */
537
e5ee3f64 538void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count)
1da177e4 539{
1da177e4
LT		 540 struct zoran *zr = fh->zr;
541 unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
542 u32 *mask;
543 int x, y, width, height;
544 unsigned i, j, k;
1da177e4
LT		 545
546 /* fill mask with one bits */
547 memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
1da177e4
LT		 548
549 for (i = 0; i < count; ++i) {
550 /* pick up local copy of clip */
7f6adeaf
HV		 551 x = vp[i].c.left;
552 y = vp[i].c.top;
553 width = vp[i].c.width;
554 height = vp[i].c.height;
1da177e4
LT		 555
556 /* trim clips that extend beyond the window */
557 if (x < 0) {
558 width += x;
559 x = 0;
560 }
561 if (y < 0) {
562 height += y;
563 y = 0;
564 }
565 if (x + width > fh->overlay_settings.width) {
566 width = fh->overlay_settings.width - x;
567 }
568 if (y + height > fh->overlay_settings.height) {
569 height = fh->overlay_settings.height - y;
570 }
571
572 /* ignore degenerate clips */
573 if (height <= 0) {
574 continue;
575 }
576 if (width <= 0) {
577 continue;
578 }
579
580 /* apply clip for each scan line */
581 for (j = 0; j < height; ++j) {
582 /* reset bit for each pixel */
583 /* this can be optimized later if need be */
584 mask = fh->overlay_mask + (y + j) * mask_line_size;
585 for (k = 0; k < width; ++k) {
586 mask[(x + k) / 32] &=
587 ~((u32) 1 << (x + k) % 32);
588 }
589 }
590 }
591}
592
593/* Enable/Disable uncompressed memory grabbing of the 36057 */
594
595void
596zr36057_set_memgrab (struct zoran *zr,
597 int mode)
598{
599 if (mode) {
9896bbc1
TP		 600 /* We only check SnapShot and not FrameGrab here. SnapShot==1
601 * means a capture is already in progress, but FrameGrab==1
602 * doesn't necessary mean that. It's more correct to say a 1
603 * to 0 transition indicates a capture completed. If a
604 * capture is pending when capturing is tuned off, FrameGrab
605 * will be stuck at 1 until capturing is turned back on.
606 */
607 if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot)
1da177e4
LT		 608 dprintk(1,
609 KERN_WARNING
9896bbc1 610 "%s: zr36057_set_memgrab(1) with SnapShot on!?\n",
1da177e4
LT		 611 ZR_DEVNAME(zr));
612
613 /* switch on VSync interrupts */
614 btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
615 btor(zr->card.vsync_int, ZR36057_ICR); // SW
616
617 /* enable SnapShot */
618 btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
619
620 /* Set zr36057 video front end and enable video */
621 zr36057_set_vfe(zr, zr->v4l_settings.width,
622 zr->v4l_settings.height,
623 zr->v4l_settings.format);
624
625 zr->v4l_memgrab_active = 1;
626 } else {
1da177e4
LT		 627 /* switch off VSync interrupts */
628 btand(~zr->card.vsync_int, ZR36057_ICR); // SW
629
9896bbc1
TP		 630 zr->v4l_memgrab_active = 0;
631 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
632
1da177e4
LT		 633 /* reenable grabbing to screen if it was running */
634 if (zr->v4l_overlay_active) {
635 zr36057_overlay(zr, 1);
636 } else {
637 btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
638 btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
639 }
640 }
641}
642
643int
644wait_grab_pending (struct zoran *zr)
645{
646 unsigned long flags;
647
648 /* wait until all pending grabs are finished */
649
650 if (!zr->v4l_memgrab_active)
651 return 0;
652
653 wait_event_interruptible(zr->v4l_capq,
654 (zr->v4l_pend_tail == zr->v4l_pend_head));
655 if (signal_pending(current))
656 return -ERESTARTSYS;
657
658 spin_lock_irqsave(&zr->spinlock, flags);
659 zr36057_set_memgrab(zr, 0);
660 spin_unlock_irqrestore(&zr->spinlock, flags);
661
662 return 0;
663}
664
665/*****************************************************************************
666 * *
667 * Set up the Buz-specific MJPEG part *
668 * *
669 *****************************************************************************/
670
671static inline void
672set_frame (struct zoran *zr,
673 int val)
674{
6165894f 675 GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val);
1da177e4
LT		 676}
677
678static void
679set_videobus_dir (struct zoran *zr,
680 int val)
681{
682 switch (zr->card.type) {
683 case LML33:
684 case LML33R10:
685 if (lml33dpath == 0)
686 GPIO(zr, 5, val);
687 else
688 GPIO(zr, 5, 1);
689 break;
690 default:
6165894f
MCC		 691 GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR],
692 zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val);
1da177e4
LT		 693 break;
694 }
695}
696
697static void
698init_jpeg_queue (struct zoran *zr)
699{
700 int i;
701
702 /* re-initialize DMA ring stuff */
703 zr->jpg_que_head = 0;
704 zr->jpg_dma_head = 0;
705 zr->jpg_dma_tail = 0;
706 zr->jpg_que_tail = 0;
707 zr->jpg_seq_num = 0;
708 zr->JPEG_error = 0;
709 zr->num_errors = 0;
710 zr->jpg_err_seq = 0;
711 zr->jpg_err_shift = 0;
712 zr->jpg_queued_num = 0;
713 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
714 zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
715 }
716 for (i = 0; i < BUZ_NUM_STAT_COM; i++) {
717 zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
718 }
719}
720
721static void
722zr36057_set_jpg (struct zoran *zr,
723 enum zoran_codec_mode mode)
724{
725 struct tvnorm *tvn;
726 u32 reg;
727
728 tvn = zr->timing;
729
730 /* assert P_Reset, disable code transfer, deassert Active */
731 btwrite(0, ZR36057_JPC);
732
733 /* MJPEG compression mode */
734 switch (mode) {
735
736 case BUZ_MODE_MOTION_COMPRESS:
737 default:
738 reg = ZR36057_JMC_MJPGCmpMode;
739 break;
740
741 case BUZ_MODE_MOTION_DECOMPRESS:
742 reg = ZR36057_JMC_MJPGExpMode;
743 reg |= ZR36057_JMC_SyncMstr;
744 /* RJ: The following is experimental - improves the output to screen */
745 //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM
746 break;
747
748 case BUZ_MODE_STILL_COMPRESS:
749 reg = ZR36057_JMC_JPGCmpMode;
750 break;
751
752 case BUZ_MODE_STILL_DECOMPRESS:
753 reg = ZR36057_JMC_JPGExpMode;
754 break;
755
756 }
757 reg |= ZR36057_JMC_JPG;
758 if (zr->jpg_settings.field_per_buff == 1)
759 reg |= ZR36057_JMC_Fld_per_buff;
760 btwrite(reg, ZR36057_JMC);
761
762 /* vertical */
763 btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR);
764 reg = (6 << ZR36057_VSP_VsyncSize) |
765 (tvn->Ht << ZR36057_VSP_FrmTot);
766 btwrite(reg, ZR36057_VSP);
767 reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) |
768 (zr->jpg_settings.img_height << ZR36057_FVAP_PAY);
769 btwrite(reg, ZR36057_FVAP);
770
771 /* horizontal */
772 if (zr->card.vfe_pol.hsync_pol)
773 btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
774 else
d56410e0 775 btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
1da177e4
LT		 776 reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) |
777 (tvn->Wt << ZR36057_HSP_LineTot);
778 btwrite(reg, ZR36057_HSP);
779 reg = ((zr->jpg_settings.img_x +
d56410e0 780 tvn->HStart + 4) << ZR36057_FHAP_NAX) |
1da177e4
LT		 781 (zr->jpg_settings.img_width << ZR36057_FHAP_PAX);
782 btwrite(reg, ZR36057_FHAP);
783
784 /* field process parameters */
785 if (zr->jpg_settings.odd_even)
786 reg = ZR36057_FPP_Odd_Even;
787 else
788 reg = 0;
789
790 btwrite(reg, ZR36057_FPP);
791
792 /* Set proper VCLK Polarity, else colors will be wrong during playback */
793 //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR);
794
795 /* code base address */
796 reg = virt_to_bus(zr->stat_com);
797 btwrite(reg, ZR36057_JCBA);
798
799 /* FIFO threshold (FIFO is 160. double words) */
800 /* NOTE: decimal values here */
801 switch (mode) {
802
803 case BUZ_MODE_STILL_COMPRESS:
804 case BUZ_MODE_MOTION_COMPRESS:
805 if (zr->card.type != BUZ)
806 reg = 140;
807 else
808 reg = 60;
809 break;
810
811 case BUZ_MODE_STILL_DECOMPRESS:
812 case BUZ_MODE_MOTION_DECOMPRESS:
813 reg = 20;
814 break;
815
816 default:
817 reg = 80;
818 break;
819
820 }
821 btwrite(reg, ZR36057_JCFT);
822 zr36057_adjust_vfe(zr, mode);
823
824}
825
826void
827print_interrupts (struct zoran *zr)
828{
829 int res, noerr = 0;
830
831 printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr));
832 if ((res = zr->field_counter) < -1 || res > 1) {
833 printk(" FD:%d", res);
834 }
835 if ((res = zr->intr_counter_GIRQ1) != 0) {
836 printk(" GIRQ1:%d", res);
837 noerr++;
838 }
839 if ((res = zr->intr_counter_GIRQ0) != 0) {
840 printk(" GIRQ0:%d", res);
841 noerr++;
842 }
843 if ((res = zr->intr_counter_CodRepIRQ) != 0) {
844 printk(" CodRepIRQ:%d", res);
845 noerr++;
846 }
847 if ((res = zr->intr_counter_JPEGRepIRQ) != 0) {
848 printk(" JPEGRepIRQ:%d", res);
849 noerr++;
850 }
851 if (zr->JPEG_max_missed) {
852 printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed,
853 zr->JPEG_min_missed);
854 }
855 if (zr->END_event_missed) {
856 printk(" ENDs missed: %d", zr->END_event_missed);
857 }
858 //if (zr->jpg_queued_num) {
859 printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail,
860 zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head);
861 //}
862 if (!noerr) {
863 printk(": no interrupts detected.");
864 }
865 printk("\n");
866}
867
868void
869clear_interrupt_counters (struct zoran *zr)
870{
871 zr->intr_counter_GIRQ1 = 0;
872 zr->intr_counter_GIRQ0 = 0;
873 zr->intr_counter_CodRepIRQ = 0;
874 zr->intr_counter_JPEGRepIRQ = 0;
875 zr->field_counter = 0;
876 zr->IRQ1_in = 0;
877 zr->IRQ1_out = 0;
878 zr->JPEG_in = 0;
879 zr->JPEG_out = 0;
880 zr->JPEG_0 = 0;
881 zr->JPEG_1 = 0;
882 zr->END_event_missed = 0;
883 zr->JPEG_missed = 0;
884 zr->JPEG_max_missed = 0;
885 zr->JPEG_min_missed = 0x7fffffff;
886}
887
888static u32
889count_reset_interrupt (struct zoran *zr)
890{
891 u32 isr;
892
893 if ((isr = btread(ZR36057_ISR) & 0x78000000)) {
894 if (isr & ZR36057_ISR_GIRQ1) {
895 btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR);
896 zr->intr_counter_GIRQ1++;
897 }
898 if (isr & ZR36057_ISR_GIRQ0) {
899 btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR);
900 zr->intr_counter_GIRQ0++;
901 }
902 if (isr & ZR36057_ISR_CodRepIRQ) {
903 btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR);
904 zr->intr_counter_CodRepIRQ++;
905 }
906 if (isr & ZR36057_ISR_JPEGRepIRQ) {
907 btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR);
908 zr->intr_counter_JPEGRepIRQ++;
909 }
910 }
911 return isr;
912}
913
1da177e4
LT		 914void
915jpeg_start (struct zoran *zr)
916{
917 int reg;
918
919 zr->frame_num = 0;
920
921 /* deassert P_reset, disable code transfer, deassert Active */
922 btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
923 /* stop flushing the internal code buffer */
924 btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
925 /* enable code transfer */
926 btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC);
927
928 /* clear IRQs */
929 btwrite(IRQ_MASK, ZR36057_ISR);
930 /* enable the JPEG IRQs */
931 btwrite(zr->card.jpeg_int |
932 ZR36057_ICR_JPEGRepIRQ |
933 ZR36057_ICR_IntPinEn,
934 ZR36057_ICR);
935
936 set_frame(zr, 0); // \FRAME
937
938 /* set the JPEG codec guest ID */
939 reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) |
940 (0 << ZR36057_JCGI_JPEGuestReg);
941 btwrite(reg, ZR36057_JCGI);
942
943 if (zr->card.video_vfe == CODEC_TYPE_ZR36016 &&
944 zr->card.video_codec == CODEC_TYPE_ZR36050) {
945 /* Enable processing on the ZR36016 */
946 if (zr->vfe)
947 zr36016_write(zr->vfe, 0, 1);
948
949 /* load the address of the GO register in the ZR36050 latch */
950 post_office_write(zr, 0, 0, 0);
951 }
952
953 /* assert Active */
954 btor(ZR36057_JPC_Active, ZR36057_JPC);
955
956 /* enable the Go generation */
957 btor(ZR36057_JMC_Go_en, ZR36057_JMC);
958 udelay(30);
959
960 set_frame(zr, 1); // /FRAME
961
962 dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr));
963}
964
965void
966zr36057_enable_jpg (struct zoran *zr,
967 enum zoran_codec_mode mode)
968{
1da177e4
LT		 969 struct vfe_settings cap;
970 int field_size =
971 zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff;
972
973 zr->codec_mode = mode;
974
975 cap.x = zr->jpg_settings.img_x;
976 cap.y = zr->jpg_settings.img_y;
977 cap.width = zr->jpg_settings.img_width;
978 cap.height = zr->jpg_settings.img_height;
979 cap.decimation =
980 zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8);
981 cap.quality = zr->jpg_settings.jpg_comp.quality;
982
983 switch (mode) {
984
985 case BUZ_MODE_MOTION_COMPRESS: {
986 struct jpeg_app_marker app;
987 struct jpeg_com_marker com;
988
989 /* In motion compress mode, the decoder output must be enabled, and
990 * the video bus direction set to input.
991 */
992 set_videobus_dir(zr, 0);
0ab6e1c3 993 decoder_call(zr, video, s_stream, 1);
5325b427 994 encoder_call(zr, video, s_routing, 0, 0, 0);
1da177e4
LT		 995
996 /* Take the JPEG codec and the VFE out of sleep */
997 jpeg_codec_sleep(zr, 0);
998
999 /* set JPEG app/com marker */
1000 app.appn = zr->jpg_settings.jpg_comp.APPn;
1001 app.len = zr->jpg_settings.jpg_comp.APP_len;
1002 memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60);
1003 zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA,
1004 sizeof(struct jpeg_app_marker), &app);
1005
1006 com.len = zr->jpg_settings.jpg_comp.COM_len;
1007 memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60);
1008 zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA,
1009 sizeof(struct jpeg_com_marker), &com);
1010
1011 /* Setup the JPEG codec */
1012 zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE,
1013 sizeof(int), &field_size);
1014 zr->codec->set_video(zr->codec, zr->timing, &cap,
1015 &zr->card.vfe_pol);
1016 zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION);
1017
1018 /* Setup the VFE */
1019 if (zr->vfe) {
1020 zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE,
1021 sizeof(int), &field_size);
1022 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1023 &zr->card.vfe_pol);
1024 zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION);
1025 }
1026
1027 init_jpeg_queue(zr);
1028 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1029
1030 clear_interrupt_counters(zr);
1031 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n",
1032 ZR_DEVNAME(zr));
1033 break;
1034 }
1035
1036 case BUZ_MODE_MOTION_DECOMPRESS:
1037 /* In motion decompression mode, the decoder output must be disabled, and
1038 * the video bus direction set to output.
1039 */
0ab6e1c3 1040 decoder_call(zr, video, s_stream, 0);
1da177e4 1041 set_videobus_dir(zr, 1);
5325b427 1042 encoder_call(zr, video, s_routing, 1, 0, 0);
1da177e4
LT		 1043
1044 /* Take the JPEG codec and the VFE out of sleep */
1045 jpeg_codec_sleep(zr, 0);
1046 /* Setup the VFE */
1047 if (zr->vfe) {
1048 zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1049 &zr->card.vfe_pol);
1050 zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION);
1051 }
1052 /* Setup the JPEG codec */
1053 zr->codec->set_video(zr->codec, zr->timing, &cap,
1054 &zr->card.vfe_pol);
1055 zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION);
1056
1057 init_jpeg_queue(zr);
1058 zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
1059
1060 clear_interrupt_counters(zr);
1061 dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n",
1062 ZR_DEVNAME(zr));
1063 break;
1064
1065 case BUZ_MODE_IDLE:
1066 default:
1067 /* shut down processing */
1068 btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ),
1069 ZR36057_ICR);
1070 btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ,
1071 ZR36057_ISR);
1072 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en
1073
1074 msleep(50);
1075
1076 set_videobus_dir(zr, 0);
1077 set_frame(zr, 1); // /FRAME
1078 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush
1079 btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active
1080 btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
1081 btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
1082 jpeg_codec_reset(zr);
1083 jpeg_codec_sleep(zr, 1);
1084 zr36057_adjust_vfe(zr, mode);
1085
0ab6e1c3 1086 decoder_call(zr, video, s_stream, 1);
5325b427 1087 encoder_call(zr, video, s_routing, 0, 0, 0);
1da177e4
LT		 1088
1089 dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
1090 break;
1091
1092 }
1093}
1094
1095/* when this is called the spinlock must be held */
1096void
1097zoran_feed_stat_com (struct zoran *zr)
1098{
1099 /* move frames from pending queue to DMA */
1100
1101 int frame, i, max_stat_com;
1102
1103 max_stat_com =
1104 (zr->jpg_settings.TmpDcm ==
1105 1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1);
1106
1107 while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com &&
1108 zr->jpg_dma_head < zr->jpg_que_head) {
1109
1110 frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME];
1111 if (zr->jpg_settings.TmpDcm == 1) {
1112 /* fill 1 stat_com entry */
1113 i = (zr->jpg_dma_head -
1114 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1115 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1116 break;
1117 zr->stat_com[i] =
1159b7f1 1118 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1da177e4
LT		 1119 } else {
1120 /* fill 2 stat_com entries */
1121 i = ((zr->jpg_dma_head -
1122 zr->jpg_err_shift) & 1) * 2;
1123 if (!(zr->stat_com[i] & cpu_to_le32(1)))
1124 break;
1125 zr->stat_com[i] =
1159b7f1 1126 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1da177e4 1127 zr->stat_com[i + 1] =
1159b7f1 1128 cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.frag_tab_bus);
1da177e4
LT		 1129 }
1130 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA;
1131 zr->jpg_dma_head++;
1132
1133 }
1134 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS)
1135 zr->jpg_queued_num++;
1136}
1137
1138/* when this is called the spinlock must be held */
1139static void
1140zoran_reap_stat_com (struct zoran *zr)
1141{
1142 /* move frames from DMA queue to done queue */
1143
1144 int i;
1145 u32 stat_com;
1146 unsigned int seq;
1147 unsigned int dif;
1159b7f1 1148 struct zoran_buffer *buffer;
1da177e4
LT		 1149 int frame;
1150
1151 /* In motion decompress we don't have a hardware frame counter,
1152 * we just count the interrupts here */
1153
1154 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1155 zr->jpg_seq_num++;
1156 }
1157 while (zr->jpg_dma_tail < zr->jpg_dma_head) {
1158 if (zr->jpg_settings.TmpDcm == 1)
1159 i = (zr->jpg_dma_tail -
1160 zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1161 else
1162 i = ((zr->jpg_dma_tail -
1163 zr->jpg_err_shift) & 1) * 2 + 1;
1164
1165 stat_com = le32_to_cpu(zr->stat_com[i]);
1166
1167 if ((stat_com & 1) == 0) {
1168 return;
1169 }
1170 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1171 buffer = &zr->jpg_buffers.buffer[frame];
8e6057b5 1172 v4l2_get_timestamp(&buffer->bs.timestamp);
1da177e4
LT		 1173
1174 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1175 buffer->bs.length = (stat_com & 0x7fffff) >> 1;
1176
1177 /* update sequence number with the help of the counter in stat_com */
1178
1179 seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff;
1180 dif = (seq - zr->jpg_seq_num) & 0xff;
1181 zr->jpg_seq_num += dif;
1182 } else {
1183 buffer->bs.length = 0;
1184 }
1185 buffer->bs.seq =
1186 zr->jpg_settings.TmpDcm ==
1187 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
1188 buffer->state = BUZ_STATE_DONE;
1189
1190 zr->jpg_dma_tail++;
1191 }
1192}
1193
7f37cc9b
HV		 1194static void zoran_restart(struct zoran *zr)
1195{
1196 /* Now the stat_comm buffer is ready for restart */
db1b7265
MN		 1197 unsigned int status = 0;
1198 int mode;
7f37cc9b
HV		 1199
1200 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
0ab6e1c3 1201 decoder_call(zr, video, g_input_status, &status);
7f37cc9b
HV		 1202 mode = CODEC_DO_COMPRESSION;
1203 } else {
107063c6 1204 status = V4L2_IN_ST_NO_SIGNAL;
7f37cc9b
HV		 1205 mode = CODEC_DO_EXPANSION;
1206 }
1207 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
107063c6 1208 !(status & V4L2_IN_ST_NO_SIGNAL)) {
7f37cc9b
HV		 1209 /********** RESTART code *************/
1210 jpeg_codec_reset(zr);
1211 zr->codec->set_mode(zr->codec, mode);
1212 zr36057_set_jpg(zr, zr->codec_mode);
1213 jpeg_start(zr);
1214
1215 if (zr->num_errors <= 8)
1216 dprintk(2, KERN_INFO "%s: Restart\n",
1217 ZR_DEVNAME(zr));
1218
1219 zr->JPEG_missed = 0;
1220 zr->JPEG_error = 2;
1221 /********** End RESTART code ***********/
1222 }
1223}
1224
1da177e4
LT		 1225static void
1226error_handler (struct zoran *zr,
1227 u32 astat,
1228 u32 stat)
1229{
6aba72cf 1230 int i;
7f37cc9b 1231
1da177e4 1232 /* This is JPEG error handling part */
7f37cc9b
HV		 1233 if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS &&
1234 zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) {
1da177e4
LT		 1235 return;
1236 }
1237
1238 if ((stat & 1) == 0 &&
1239 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS &&
7f37cc9b 1240 zr->jpg_dma_tail - zr->jpg_que_tail >= zr->jpg_buffers.num_buffers) {
1da177e4
LT		 1241 /* No free buffers... */
1242 zoran_reap_stat_com(zr);
1243 zoran_feed_stat_com(zr);
1244 wake_up_interruptible(&zr->jpg_capq);
1245 zr->JPEG_missed = 0;
1246 return;
1247 }
1248
7f37cc9b
HV		 1249 if (zr->JPEG_error == 1) {
1250 zoran_restart(zr);
1251 return;
1252 }
1da177e4 1253
7f37cc9b
HV		 1254 /*
1255 * First entry: error just happened during normal operation
1256 *
1257 * In BUZ_MODE_MOTION_COMPRESS:
1258 *
1259 * Possible glitch in TV signal. In this case we should
1260 * stop the codec and wait for good quality signal before
1261 * restarting it to avoid further problems
1262 *
1263 * In BUZ_MODE_MOTION_DECOMPRESS:
1264 *
1265 * Bad JPEG frame: we have to mark it as processed (codec crashed
1266 * and was not able to do it itself), and to remove it from queue.
1267 */
1268 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1269 udelay(1);
1270 stat = stat | (post_office_read(zr, 7, 0) & 3) << 8;
1271 btwrite(0, ZR36057_JPC);
1272 btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
1273 jpeg_codec_reset(zr);
1274 jpeg_codec_sleep(zr, 1);
1275 zr->JPEG_error = 1;
1276 zr->num_errors++;
1277
1278 /* Report error */
1279 if (zr36067_debug > 1 && zr->num_errors <= 8) {
1280 long frame;
6aba72cf 1281 int j;
7f37cc9b
HV		 1282
1283 frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1284 printk(KERN_ERR
1285 "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ",
1286 ZR_DEVNAME(zr), stat, zr->last_isr,
1287 zr->jpg_que_tail, zr->jpg_dma_tail,
1288 zr->jpg_dma_head, zr->jpg_que_head,
1289 zr->jpg_seq_num, frame);
1290 printk(KERN_INFO "stat_com frames:");
1291 for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1292 for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
1159b7f1 1293 if (le32_to_cpu(zr->stat_com[j]) == zr->jpg_buffers.buffer[i].jpg.frag_tab_bus)
7f37cc9b 1294 printk(KERN_CONT "% d->%d", j, i);
1da177e4 1295 }
1da177e4 1296 }
7f37cc9b 1297 printk(KERN_CONT "\n");
1da177e4 1298 }
7f37cc9b
HV		 1299 /* Find an entry in stat_com and rotate contents */
1300 if (zr->jpg_settings.TmpDcm == 1)
1301 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1302 else
1303 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1304 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1305 /* Mimic zr36067 operation */
1306 zr->stat_com[i] |= cpu_to_le32(1);
1307 if (zr->jpg_settings.TmpDcm != 1)
1308 zr->stat_com[i + 1] |= cpu_to_le32(1);
1309 /* Refill */
1310 zoran_reap_stat_com(zr);
1311 zoran_feed_stat_com(zr);
1312 wake_up_interruptible(&zr->jpg_capq);
1313 /* Find an entry in stat_com again after refill */
1314 if (zr->jpg_settings.TmpDcm == 1)
1315 i = (zr->jpg_dma_tail - zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1316 else
1317 i = ((zr->jpg_dma_tail - zr->jpg_err_shift) & 1) * 2;
1318 }
1319 if (i) {
1320 /* Rotate stat_comm entries to make current entry first */
1321 int j;
1322 __le32 bus_addr[BUZ_NUM_STAT_COM];
1323
1324 /* Here we are copying the stat_com array, which
1325 * is already in little endian format, so
1326 * no endian conversions here
1327 */
1328 memcpy(bus_addr, zr->stat_com, sizeof(bus_addr));
1da177e4 1329
7f37cc9b
HV		 1330 for (j = 0; j < BUZ_NUM_STAT_COM; j++)
1331 zr->stat_com[j] = bus_addr[(i + j) & BUZ_MASK_STAT_COM];
1da177e4 1332
7f37cc9b
HV		 1333 zr->jpg_err_shift += i;
1334 zr->jpg_err_shift &= BUZ_MASK_STAT_COM;
1335 }
1336 if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)
1337 zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */
1338 zoran_restart(zr);
1da177e4
LT		 1339}
1340
1341irqreturn_t
1342zoran_irq (int irq,
7d12e780 1343 void *dev_id)
1da177e4
LT		 1344{
1345 u32 stat, astat;
1346 int count;
1347 struct zoran *zr;
1348 unsigned long flags;
1349
c7bec5ab 1350 zr = dev_id;
1da177e4
LT		 1351 count = 0;
1352
1353 if (zr->testing) {
1354 /* Testing interrupts */
1355 spin_lock_irqsave(&zr->spinlock, flags);
1356 while ((stat = count_reset_interrupt(zr))) {
1357 if (count++ > 100) {
1358 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1359 dprintk(1,
1360 KERN_ERR
1361 "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n",
1362 ZR_DEVNAME(zr), stat);
1363 wake_up_interruptible(&zr->test_q);
1364 }
1365 }
1366 zr->last_isr = stat;
1367 spin_unlock_irqrestore(&zr->spinlock, flags);
1368 return IRQ_HANDLED;
1369 }
1370
1371 spin_lock_irqsave(&zr->spinlock, flags);
1372 while (1) {
1373 /* get/clear interrupt status bits */
1374 stat = count_reset_interrupt(zr);
1375 astat = stat & IRQ_MASK;
1376 if (!astat) {
1377 break;
1378 }
1379 dprintk(4,
1380 KERN_DEBUG
1381 "zoran_irq: astat: 0x%08x, mask: 0x%08x\n",
1382 astat, btread(ZR36057_ICR));
1383 if (astat & zr->card.vsync_int) { // SW
1384
1385 if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1386 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1387 /* count missed interrupts */
1388 zr->JPEG_missed++;
1389 }
1390 //post_office_read(zr,1,0);
1391 /* Interrupts may still happen when
1392 * zr->v4l_memgrab_active is switched off.
1393 * We simply ignore them */
1394
1395 if (zr->v4l_memgrab_active) {
1da177e4 1396 /* A lot more checks should be here ... */
7f37cc9b 1397 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot) == 0)
1da177e4
LT		 1398 dprintk(1,
1399 KERN_WARNING
1400 "%s: BuzIRQ with SnapShot off ???\n",
1401 ZR_DEVNAME(zr));
1402
1403 if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) {
1404 /* There is a grab on a frame going on, check if it has finished */
7f37cc9b 1405 if ((btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_FrameGrab) == 0) {
1da177e4
LT		 1406 /* it is finished, notify the user */
1407
1408 zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
1409 zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
8e6057b5 1410 v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
1da177e4
LT		 1411 zr->v4l_grab_frame = NO_GRAB_ACTIVE;
1412 zr->v4l_pend_tail++;
1413 }
1414 }
1415
1416 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE)
1417 wake_up_interruptible(&zr->v4l_capq);
1418
1419 /* Check if there is another grab queued */
1420
1421 if (zr->v4l_grab_frame == NO_GRAB_ACTIVE &&
1422 zr->v4l_pend_tail != zr->v4l_pend_head) {
7f37cc9b 1423 int frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
1da177e4
LT		 1424 u32 reg;
1425
1426 zr->v4l_grab_frame = frame;
1427
1428 /* Set zr36057 video front end and enable video */
1429
1430 /* Buffer address */
1431
1159b7f1 1432 reg = zr->v4l_buffers.buffer[frame].v4l.fbuffer_bus;
1da177e4 1433 btwrite(reg, ZR36057_VDTR);
7f37cc9b
HV		 1434 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1435 reg += zr->v4l_settings.bytesperline;
1da177e4
LT		 1436 btwrite(reg, ZR36057_VDBR);
1437
1438 /* video stride, status, and frame grab register */
1439 reg = 0;
7f37cc9b
HV		 1440 if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
1441 reg += zr->v4l_settings.bytesperline;
1442 reg = (reg << ZR36057_VSSFGR_DispStride);
1da177e4
LT		 1443 reg |= ZR36057_VSSFGR_VidOvf;
1444 reg |= ZR36057_VSSFGR_SnapShot;
1445 reg |= ZR36057_VSSFGR_FrameGrab;
1446 btwrite(reg, ZR36057_VSSFGR);
1447
1448 btor(ZR36057_VDCR_VidEn,
1449 ZR36057_VDCR);
1450 }
1451 }
1452
1453 /* even if we don't grab, we do want to increment
1454 * the sequence counter to see lost frames */
1455 zr->v4l_grab_seq++;
1456 }
1457#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
1458 if (astat & ZR36057_ISR_CodRepIRQ) {
1459 zr->intr_counter_CodRepIRQ++;
7f37cc9b 1460 IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n",
1da177e4
LT		 1461 ZR_DEVNAME(zr)));
1462 btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR);
1463 }
1464#endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */
1465
1466#if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ)
7f37cc9b
HV		 1467 if ((astat & ZR36057_ISR_JPEGRepIRQ) &&
1468 (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1469 zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) {
1470 if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) {
634c6931 1471 char sv[BUZ_NUM_STAT_COM + 1];
7f37cc9b
HV		 1472 int i;
1473
1474 printk(KERN_INFO
1475 "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
1476 ZR_DEVNAME(zr), stat,
1477 zr->jpg_settings.odd_even,
1478 zr->jpg_settings.field_per_buff,
1479 zr->JPEG_missed);
1480
634c6931
JP		 1481 for (i = 0; i < BUZ_NUM_STAT_COM; i++)
1482 sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0';
1483 sv[BUZ_NUM_STAT_COM] = 0;
7f37cc9b
HV		 1484 printk(KERN_INFO
1485 "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n",
1486 ZR_DEVNAME(zr), sv,
1487 zr->jpg_que_tail,
1488 zr->jpg_dma_tail,
1489 zr->jpg_dma_head,
1490 zr->jpg_que_head);
1491 } else {
1492 /* Get statistics */
1493 if (zr->JPEG_missed > zr->JPEG_max_missed)
1494 zr->JPEG_max_missed = zr->JPEG_missed;
1495 if (zr->JPEG_missed < zr->JPEG_min_missed)
1496 zr->JPEG_min_missed = zr->JPEG_missed;
1497 }
1da177e4 1498
7f37cc9b
HV		 1499 if (zr36067_debug > 2 && zr->frame_num < 6) {
1500 int i;
1501
1502 printk(KERN_INFO "%s: seq=%ld stat_com:",
1503 ZR_DEVNAME(zr), zr->jpg_seq_num);
1504 for (i = 0; i < 4; i++) {
1505 printk(KERN_CONT " %08x",
1506 le32_to_cpu(zr->stat_com[i]));
1da177e4 1507 }
7f37cc9b
HV		 1508 printk(KERN_CONT "\n");
1509 }
1510 zr->frame_num++;
1511 zr->JPEG_missed = 0;
1512 zr->JPEG_error = 0;
1513 zoran_reap_stat_com(zr);
1514 zoran_feed_stat_com(zr);
1515 wake_up_interruptible(&zr->jpg_capq);
1da177e4
LT		 1516 }
1517#endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
1518
1519 /* DATERR, too many fields missed, error processing */
1520 if ((astat & zr->card.jpeg_int) ||
1521 zr->JPEG_missed > 25 ||
1522 zr->JPEG_error == 1 ||
1523 ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) &&
2a72b39e 1524 (zr->frame_num && (zr->JPEG_missed > zr->jpg_settings.field_per_buff)))) {
1da177e4
LT		 1525 error_handler(zr, astat, stat);
1526 }
1527
1528 count++;
1529 if (count > 10) {
1530 dprintk(2, KERN_WARNING "%s: irq loop %d\n",
1531 ZR_DEVNAME(zr), count);
1532 if (count > 20) {
1533 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1534 dprintk(2,
1535 KERN_ERR
1536 "%s: IRQ lockup, cleared int mask\n",
1537 ZR_DEVNAME(zr));
1538 break;
1539 }
1540 }
1541 zr->last_isr = stat;
1542 }
1543 spin_unlock_irqrestore(&zr->spinlock, flags);
1544
1545 return IRQ_HANDLED;
1546}
1547
1548void
1549zoran_set_pci_master (struct zoran *zr,
1550 int set_master)
1551{
1552 if (set_master) {
1553 pci_set_master(zr->pci_dev);
1554 } else {
1555 u16 command;
1556
1557 pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command);
1558 command &= ~PCI_COMMAND_MASTER;
1559 pci_write_config_word(zr->pci_dev, PCI_COMMAND, command);
1560 }
1561}
1562
1563void
1564zoran_init_hardware (struct zoran *zr)
1565{
1da177e4
LT		 1566 /* Enable bus-mastering */
1567 zoran_set_pci_master(zr, 1);
1568
1569 /* Initialize the board */
1570 if (zr->card.init) {
1571 zr->card.init(zr);
1572 }
1573
0ab6e1c3 1574 decoder_call(zr, core, init, 0);
8774bed9 1575 decoder_call(zr, video, s_std, zr->norm);
5325b427
HV		 1576 decoder_call(zr, video, s_routing,
1577 zr->card.input[zr->input].muxsel, 0, 0);
1da177e4 1578
0ab6e1c3
HV		 1579 encoder_call(zr, core, init, 0);
1580 encoder_call(zr, video, s_std_output, zr->norm);
5325b427 1581 encoder_call(zr, video, s_routing, 0, 0, 0);
1da177e4
LT		 1582
1583 /* toggle JPEG codec sleep to sync PLL */
1584 jpeg_codec_sleep(zr, 1);
1585 jpeg_codec_sleep(zr, 0);
1586
1587 /* set individual interrupt enables (without GIRQ1)
1588 * but don't global enable until zoran_open() */
1589
1590 //btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR); // SW
1591 // It looks like using only JPEGRepIRQEn is not always reliable,
1592 // may be when JPEG codec crashes it won't generate IRQ? So,
1593 /*CP*/ // btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM WHY ? LP
1594 zr36057_init_vfe(zr);
1595
1596 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1597
1598 btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
1599}
1600
1601void
1602zr36057_restart (struct zoran *zr)
1603{
1604 btwrite(0, ZR36057_SPGPPCR);
1605 mdelay(1);
1606 btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
1607 mdelay(1);
1608
1609 /* assert P_Reset */
1610 btwrite(0, ZR36057_JPC);
1611 /* set up GPIO direction - all output */
1612 btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
1613
1614 /* set up GPIO pins and guest bus timing */
1615 btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1);
1616}
1617
1618/*
1619 * initialize video front end
1620 */
1621
1622static void
1623zr36057_init_vfe (struct zoran *zr)
1624{
1625 u32 reg;
1626
1627 reg = btread(ZR36057_VFESPFR);
1628 reg |= ZR36057_VFESPFR_LittleEndian;
1629 reg &= ~ZR36057_VFESPFR_VCLKPol;
1630 reg |= ZR36057_VFESPFR_ExtFl;
1631 reg |= ZR36057_VFESPFR_TopField;
1632 btwrite(reg, ZR36057_VFESPFR);
1633 reg = btread(ZR36057_VDCR);
1634 if (pci_pci_problems & PCIPCI_TRITON)
1635 // || zr->revision < 1) // Revision 1 has also Triton support
1636 reg &= ~ZR36057_VDCR_Triton;
1637 else
1638 reg |= ZR36057_VDCR_Triton;
1639 btwrite(reg, ZR36057_VDCR);
1640}
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