OpenCores
URL https://opencores.org/ocsvn/test_project/test_project/trunk

Subversion Repositories test_project

[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [media/] [video/] [zoran_device.c] - Blame information for rev 62

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 62 marcus.erl
/*
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/byteorder/generic.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/videodev.h>
41
#include <linux/spinlock.h>
42
#include <linux/sem.h>
43
 
44
#include <linux/pci.h>
45
#include <linux/video_decoder.h>
46
#include <linux/video_encoder.h>
47
#include <linux/delay.h>
48
#include <linux/wait.h>
49
 
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
extern const struct zoran_format zoran_formats[];
62
 
63
static int lml33dpath = 0;       /* 1 will use digital path in capture
64
                                 * mode instead of analog. It can be
65
                                 * used for picture adjustments using
66
                                 * tool like xawtv while watching image
67
                                 * on TV monitor connected to the output.
68
                                 * However, due to absence of 75 Ohm
69
                                 * load on Bt819 input, there will be
70
                                 * some image imperfections */
71
 
72
module_param(lml33dpath, bool, 0644);
73
MODULE_PARM_DESC(lml33dpath,
74
                 "Use digital path capture mode (on LML33 cards)");
75
 
76
static void
77
zr36057_init_vfe (struct zoran *zr);
78
 
79
/*
80
 * General Purpose I/O and Guest bus access
81
 */
82
 
83
/*
84
 * This is a bit tricky. When a board lacks a GPIO function, the corresponding
85
 * GPIO bit number in the card_info structure is set to 0.
86
 */
87
 
88
void
89
GPIO (struct zoran *zr,
90
      int           bit,
91
      unsigned int  value)
92
{
93
        u32 reg;
94
        u32 mask;
95
 
96
        /* Make sure the bit number is legal
97
         * A bit number of -1 (lacking) gives a mask of 0,
98
         * making it harmless */
99
        mask = (1 << (24 + bit)) & 0xff000000;
100
        reg = btread(ZR36057_GPPGCR1) & ~mask;
101
        if (value) {
102
                reg |= mask;
103
        }
104
        btwrite(reg, ZR36057_GPPGCR1);
105
        udelay(1);
106
}
107
 
108
/*
109
 * Wait til post office is no longer busy
110
 */
111
 
112
int
113
post_office_wait (struct zoran *zr)
114
{
115
        u32 por;
116
 
117
//      while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) {
118
        while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) {
119
                /* wait for something to happen */
120
        }
121
        if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) {
122
                /* In LML33/BUZ \GWS line is not connected, so it has always timeout set */
123
                dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr),
124
                        por);
125
                return -1;
126
        }
127
 
128
        return 0;
129
}
130
 
131
int
132
post_office_write (struct zoran *zr,
133
                   unsigned int  guest,
134
                   unsigned int  reg,
135
                   unsigned int  value)
136
{
137
        u32 por;
138
 
139
        por =
140
            ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) |
141
            ((reg & 7) << 16) | (value & 0xFF);
142
        btwrite(por, ZR36057_POR);
143
 
144
        return post_office_wait(zr);
145
}
146
 
147
int
148
post_office_read (struct zoran *zr,
149
                  unsigned int  guest,
150
                  unsigned int  reg)
151
{
152
        u32 por;
153
 
154
        por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16);
155
        btwrite(por, ZR36057_POR);
156
        if (post_office_wait(zr) < 0) {
157
                return -1;
158
        }
159
 
160
        return btread(ZR36057_POR) & 0xFF;
161
}
162
 
163
/*
164
 * detect guests
165
 */
166
 
167
static void
168
dump_guests (struct zoran *zr)
169
{
170
        if (zr36067_debug > 2) {
171
                int i, guest[8];
172
 
173
                for (i = 1; i < 8; i++) {       // Don't read jpeg codec here
174
                        guest[i] = post_office_read(zr, i, 0);
175
                }
176
 
177
                printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
178
 
179
                for (i = 1; i < 8; i++) {
180
                        printk(" 0x%02x", guest[i]);
181
                }
182
                printk("\n");
183
        }
184
}
185
 
186
static inline unsigned long
187
get_time (void)
188
{
189
        struct timeval tv;
190
 
191
        do_gettimeofday(&tv);
192
        return (1000000 * tv.tv_sec + tv.tv_usec);
193
}
194
 
195
void
196
detect_guest_activity (struct zoran *zr)
197
{
198
        int timeout, i, j, res, guest[8], guest0[8], change[8][3];
199
        unsigned long t0, t1;
200
 
201
        dump_guests(zr);
202
        printk(KERN_INFO "%s: Detecting guests activity, please wait...\n",
203
               ZR_DEVNAME(zr));
204
        for (i = 1; i < 8; i++) {       // Don't read jpeg codec here
205
                guest0[i] = guest[i] = post_office_read(zr, i, 0);
206
        }
207
 
208
        timeout = 0;
209
        j = 0;
210
        t0 = get_time();
211
        while (timeout < 10000) {
212
                udelay(10);
213
                timeout++;
214
                for (i = 1; (i < 8) && (j < 8); i++) {
215
                        res = post_office_read(zr, i, 0);
216
                        if (res != guest[i]) {
217
                                t1 = get_time();
218
                                change[j][0] = (t1 - t0);
219
                                t0 = t1;
220
                                change[j][1] = i;
221
                                change[j][2] = res;
222
                                j++;
223
                                guest[i] = res;
224
                        }
225
                }
226
                if (j >= 8)
227
                        break;
228
        }
229
        printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
230
 
231
        for (i = 1; i < 8; i++) {
232
                printk(" 0x%02x", guest0[i]);
233
        }
234
        printk("\n");
235
        if (j == 0) {
236
                printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr));
237
                return;
238
        }
239
        for (i = 0; i < j; i++) {
240
                printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr),
241
                       change[i][0], change[i][1], change[i][2]);
242
        }
243
}
244
 
245
/*
246
 * JPEG Codec access
247
 */
248
 
249
void
250
jpeg_codec_sleep (struct zoran *zr,
251
                  int           sleep)
252
{
253
        GPIO(zr, zr->card.gpio[GPIO_JPEG_SLEEP], !sleep);
254
        if (!sleep) {
255
                dprintk(3,
256
                        KERN_DEBUG
257
                        "%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n",
258
                        ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
259
                udelay(500);
260
        } else {
261
                dprintk(3,
262
                        KERN_DEBUG
263
                        "%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n",
264
                        ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
265
                udelay(2);
266
        }
267
}
268
 
269
int
270
jpeg_codec_reset (struct zoran *zr)
271
{
272
        /* Take the codec out of sleep */
273
        jpeg_codec_sleep(zr, 0);
274
 
275
        if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) {
276
                post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0,
277
                                  0);
278
                udelay(2);
279
        } else {
280
                GPIO(zr, zr->card.gpio[GPIO_JPEG_RESET], 0);
281
                udelay(2);
282
                GPIO(zr, zr->card.gpio[GPIO_JPEG_RESET], 1);
283
                udelay(2);
284
        }
285
 
286
        return 0;
287
}
288
 
289
/*
290
 *   Set the registers for the size we have specified. Don't bother
291
 *   trying to understand this without the ZR36057 manual in front of
292
 *   you [AC].
293
 *
294
 *   PS: The manual is free for download in .pdf format from
295
 *   www.zoran.com - nicely done those folks.
296
 */
297
 
298
static void
299
zr36057_adjust_vfe (struct zoran          *zr,
300
                    enum zoran_codec_mode  mode)
301
{
302
        u32 reg;
303
 
304
        switch (mode) {
305
        case BUZ_MODE_MOTION_DECOMPRESS:
306
                btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
307
                reg = btread(ZR36057_VFEHCR);
308
                if ((reg & (1 << 10)) && zr->card.type != LML33R10) {
309
                        reg += ((1 << 10) | 1);
310
                }
311
                btwrite(reg, ZR36057_VFEHCR);
312
                break;
313
        case BUZ_MODE_MOTION_COMPRESS:
314
        case BUZ_MODE_IDLE:
315
        default:
316
                if (zr->norm == VIDEO_MODE_NTSC ||
317
                    (zr->card.type == LML33R10 &&
318
                     zr->norm == VIDEO_MODE_PAL))
319
                        btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
320
                else
321
                        btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
322
                reg = btread(ZR36057_VFEHCR);
323
                if (!(reg & (1 << 10)) && zr->card.type != LML33R10) {
324
                        reg -= ((1 << 10) | 1);
325
                }
326
                btwrite(reg, ZR36057_VFEHCR);
327
                break;
328
        }
329
}
330
 
331
/*
332
 * set geometry
333
 */
334
 
335
static void
336
zr36057_set_vfe (struct zoran              *zr,
337
                 int                        video_width,
338
                 int                        video_height,
339
                 const struct zoran_format *format)
340
{
341
        struct tvnorm *tvn;
342
        unsigned HStart, HEnd, VStart, VEnd;
343
        unsigned DispMode;
344
        unsigned VidWinWid, VidWinHt;
345
        unsigned hcrop1, hcrop2, vcrop1, vcrop2;
346
        unsigned Wa, We, Ha, He;
347
        unsigned X, Y, HorDcm, VerDcm;
348
        u32 reg;
349
        unsigned mask_line_size;
350
 
351
        tvn = zr->timing;
352
 
353
        Wa = tvn->Wa;
354
        Ha = tvn->Ha;
355
 
356
        dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n",
357
                ZR_DEVNAME(zr), video_width, video_height);
358
 
359
        if (zr->norm != VIDEO_MODE_PAL &&
360
            zr->norm != VIDEO_MODE_NTSC &&
361
            zr->norm != VIDEO_MODE_SECAM) {
362
                dprintk(1,
363
                        KERN_ERR "%s: set_vfe() - norm = %d not valid\n",
364
                        ZR_DEVNAME(zr), zr->norm);
365
                return;
366
        }
367
        if (video_width < BUZ_MIN_WIDTH ||
368
            video_height < BUZ_MIN_HEIGHT ||
369
            video_width > Wa || video_height > Ha) {
370
                dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n",
371
                        ZR_DEVNAME(zr), video_width, video_height);
372
                return;
373
        }
374
 
375
        /**** zr36057 ****/
376
 
377
        /* horizontal */
378
        VidWinWid = video_width;
379
        X = (VidWinWid * 64 + tvn->Wa - 1) / tvn->Wa;
380
        We = (VidWinWid * 64) / X;
381
        HorDcm = 64 - X;
382
        hcrop1 = 2 * ((tvn->Wa - We) / 4);
383
        hcrop2 = tvn->Wa - We - hcrop1;
384
        HStart = tvn->HStart ? tvn->HStart : 1;
385
        /* (Ronald) Original comment:
386
         * "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+"
387
         * this is false. It inverses chroma values on the LML33R10 (so Cr
388
         * suddenly is shown as Cb and reverse, really cool effect if you
389
         * want to see blue faces, not useful otherwise). So don't use |1.
390
         * However, the DC10 has '0' as HStart, but does need |1, so we
391
         * use a dirty check...
392
         */
393
        HEnd = HStart + tvn->Wa - 1;
394
        HStart += hcrop1;
395
        HEnd -= hcrop2;
396
        reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
397
            | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
398
        if (zr->card.vfe_pol.hsync_pol)
399
                reg |= ZR36057_VFEHCR_HSPol;
400
        btwrite(reg, ZR36057_VFEHCR);
401
 
402
        /* Vertical */
403
        DispMode = !(video_height > BUZ_MAX_HEIGHT / 2);
404
        VidWinHt = DispMode ? video_height : video_height / 2;
405
        Y = (VidWinHt * 64 * 2 + tvn->Ha - 1) / tvn->Ha;
406
        He = (VidWinHt * 64) / Y;
407
        VerDcm = 64 - Y;
408
        vcrop1 = (tvn->Ha / 2 - He) / 2;
409
        vcrop2 = tvn->Ha / 2 - He - vcrop1;
410
        VStart = tvn->VStart;
411
        VEnd = VStart + tvn->Ha / 2;    // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP
412
        VStart += vcrop1;
413
        VEnd -= vcrop2;
414
        reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
415
            | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
416
        if (zr->card.vfe_pol.vsync_pol)
417
                reg |= ZR36057_VFEVCR_VSPol;
418
        btwrite(reg, ZR36057_VFEVCR);
419
 
420
        /* scaler and pixel format */
421
        reg = 0;
422
        reg |= (HorDcm << ZR36057_VFESPFR_HorDcm);
423
        reg |= (VerDcm << ZR36057_VFESPFR_VerDcm);
424
        reg |= (DispMode << ZR36057_VFESPFR_DispMode);
425
        /* RJ: I don't know, why the following has to be the opposite
426
         * of the corresponding ZR36060 setting, but only this way
427
         * we get the correct colors when uncompressing to the screen  */
428
        //reg |= ZR36057_VFESPFR_VCLKPol; /**/
429
        /* RJ: Don't know if that is needed for NTSC also */
430
        if (zr->norm != VIDEO_MODE_NTSC)
431
                reg |= ZR36057_VFESPFR_ExtFl;   // NEEDED!!!!!!! Wolfgang
432
        reg |= ZR36057_VFESPFR_TopField;
433
        if (HorDcm >= 48) {
434
                reg |= 3 << ZR36057_VFESPFR_HFilter;    /* 5 tap filter */
435
        } else if (HorDcm >= 32) {
436
                reg |= 2 << ZR36057_VFESPFR_HFilter;    /* 4 tap filter */
437
        } else if (HorDcm >= 16) {
438
                reg |= 1 << ZR36057_VFESPFR_HFilter;    /* 3 tap filter */
439
        }
440
        reg |= format->vfespfr;
441
        btwrite(reg, ZR36057_VFESPFR);
442
 
443
        /* display configuration */
444
        reg = (16 << ZR36057_VDCR_MinPix)
445
            | (VidWinHt << ZR36057_VDCR_VidWinHt)
446
            | (VidWinWid << ZR36057_VDCR_VidWinWid);
447
        if (pci_pci_problems & PCIPCI_TRITON)
448
                // || zr->revision < 1) // Revision 1 has also Triton support
449
                reg &= ~ZR36057_VDCR_Triton;
450
        else
451
                reg |= ZR36057_VDCR_Triton;
452
        btwrite(reg, ZR36057_VDCR);
453
 
454
        /* (Ronald) don't write this if overlay_mask = NULL */
455
        if (zr->overlay_mask) {
456
                /* Write overlay clipping mask data, but don't enable overlay clipping */
457
                /* RJ: since this makes only sense on the screen, we use
458
                 * zr->overlay_settings.width instead of video_width */
459
 
460
                mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
461
                reg = virt_to_bus(zr->overlay_mask);
462
                btwrite(reg, ZR36057_MMTR);
463
                reg = virt_to_bus(zr->overlay_mask + mask_line_size);
464
                btwrite(reg, ZR36057_MMBR);
465
                reg =
466
                    mask_line_size - (zr->overlay_settings.width +
467
                                      31) / 32;
468
                if (DispMode == 0)
469
                        reg += mask_line_size;
470
                reg <<= ZR36057_OCR_MaskStride;
471
                btwrite(reg, ZR36057_OCR);
472
        }
473
 
474
        zr36057_adjust_vfe(zr, zr->codec_mode);
475
}
476
 
477
/*
478
 * Switch overlay on or off
479
 */
480
 
481
void
482
zr36057_overlay (struct zoran *zr,
483
                 int           on)
484
{
485
        u32 reg;
486
 
487
        if (on) {
488
                /* do the necessary settings ... */
489
                btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);       /* switch it off first */
490
 
491
                zr36057_set_vfe(zr,
492
                                zr->overlay_settings.width,
493
                                zr->overlay_settings.height,
494
                                zr->overlay_settings.format);
495
 
496
                /* Start and length of each line MUST be 4-byte aligned.
497
                 * This should be allready checked before the call to this routine.
498
                 * All error messages are internal driver checking only! */
499
 
500
                /* video display top and bottom registers */
501
                reg = (long) zr->buffer.base +
502
                    zr->overlay_settings.x *
503
                    ((zr->overlay_settings.format->depth + 7) / 8) +
504
                    zr->overlay_settings.y *
505
                    zr->buffer.bytesperline;
506
                btwrite(reg, ZR36057_VDTR);
507
                if (reg & 3)
508
                        dprintk(1,
509
                                KERN_ERR
510
                                "%s: zr36057_overlay() - video_address not aligned\n",
511
                                ZR_DEVNAME(zr));
512
                if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
513
                        reg += zr->buffer.bytesperline;
514
                btwrite(reg, ZR36057_VDBR);
515
 
516
                /* video stride, status, and frame grab register */
517
                reg = zr->buffer.bytesperline -
518
                    zr->overlay_settings.width *
519
                    ((zr->overlay_settings.format->depth + 7) / 8);
520
                if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
521
                        reg += zr->buffer.bytesperline;
522
                if (reg & 3)
523
                        dprintk(1,
524
                                KERN_ERR
525
                                "%s: zr36057_overlay() - video_stride not aligned\n",
526
                                ZR_DEVNAME(zr));
527
                reg = (reg << ZR36057_VSSFGR_DispStride);
528
                reg |= ZR36057_VSSFGR_VidOvf;   /* clear overflow status */
529
                btwrite(reg, ZR36057_VSSFGR);
530
 
531
                /* Set overlay clipping */
532
                if (zr->overlay_settings.clipcount > 0)
533
                        btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
534
 
535
                /* ... and switch it on */
536
                btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
537
        } else {
538
                /* Switch it off */
539
                btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
540
        }
541
}
542
 
543
/*
544
 * The overlay mask has one bit for each pixel on a scan line,
545
 *  and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
546
 */
547
 
548
void
549
write_overlay_mask (struct file       *file,
550
                    struct video_clip *vp,
551
                    int                count)
552
{
553
        struct zoran_fh *fh = file->private_data;
554
        struct zoran *zr = fh->zr;
555
        unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
556
        u32 *mask;
557
        int x, y, width, height;
558
        unsigned i, j, k;
559
        u32 reg;
560
 
561
        /* fill mask with one bits */
562
        memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
563
        reg = 0;
564
 
565
        for (i = 0; i < count; ++i) {
566
                /* pick up local copy of clip */
567
                x = vp[i].x;
568
                y = vp[i].y;
569
                width = vp[i].width;
570
                height = vp[i].height;
571
 
572
                /* trim clips that extend beyond the window */
573
                if (x < 0) {
574
                        width += x;
575
                        x = 0;
576
                }
577
                if (y < 0) {
578
                        height += y;
579
                        y = 0;
580
                }
581
                if (x + width > fh->overlay_settings.width) {
582
                        width = fh->overlay_settings.width - x;
583
                }
584
                if (y + height > fh->overlay_settings.height) {
585
                        height = fh->overlay_settings.height - y;
586
                }
587
 
588
                /* ignore degenerate clips */
589
                if (height <= 0) {
590
                        continue;
591
                }
592
                if (width <= 0) {
593
                        continue;
594
                }
595
 
596
                /* apply clip for each scan line */
597
                for (j = 0; j < height; ++j) {
598
                        /* reset bit for each pixel */
599
                        /* this can be optimized later if need be */
600
                        mask = fh->overlay_mask + (y + j) * mask_line_size;
601
                        for (k = 0; k < width; ++k) {
602
                                mask[(x + k) / 32] &=
603
                                    ~((u32) 1 << (x + k) % 32);
604
                        }
605
                }
606
        }
607
}
608
 
609
/* Enable/Disable uncompressed memory grabbing of the 36057 */
610
 
611
void
612
zr36057_set_memgrab (struct zoran *zr,
613
                     int           mode)
614
{
615
        if (mode) {
616
                /* We only check SnapShot and not FrameGrab here.  SnapShot==1
617
                 * means a capture is already in progress, but FrameGrab==1
618
                 * doesn't necessary mean that.  It's more correct to say a 1
619
                 * to 0 transition indicates a capture completed.  If a
620
                 * capture is pending when capturing is tuned off, FrameGrab
621
                 * will be stuck at 1 until capturing is turned back on.
622
                 */
623
                if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot)
624
                        dprintk(1,
625
                                KERN_WARNING
626
                                "%s: zr36057_set_memgrab(1) with SnapShot on!?\n",
627
                                ZR_DEVNAME(zr));
628
 
629
                /* switch on VSync interrupts */
630
                btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
631
                btor(zr->card.vsync_int, ZR36057_ICR);  // SW
632
 
633
                /* enable SnapShot */
634
                btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
635
 
636
                /* Set zr36057 video front end  and enable video */
637
                zr36057_set_vfe(zr, zr->v4l_settings.width,
638
                                zr->v4l_settings.height,
639
                                zr->v4l_settings.format);
640
 
641
                zr->v4l_memgrab_active = 1;
642
        } else {
643
                /* switch off VSync interrupts */
644
                btand(~zr->card.vsync_int, ZR36057_ICR);        // SW
645
 
646
                zr->v4l_memgrab_active = 0;
647
                zr->v4l_grab_frame = NO_GRAB_ACTIVE;
648
 
649
                /* reenable grabbing to screen if it was running */
650
                if (zr->v4l_overlay_active) {
651
                        zr36057_overlay(zr, 1);
652
                } else {
653
                        btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
654
                        btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
655
                }
656
        }
657
}
658
 
659
int
660
wait_grab_pending (struct zoran *zr)
661
{
662
        unsigned long flags;
663
 
664
        /* wait until all pending grabs are finished */
665
 
666
        if (!zr->v4l_memgrab_active)
667
                return 0;
668
 
669
        wait_event_interruptible(zr->v4l_capq,
670
                        (zr->v4l_pend_tail == zr->v4l_pend_head));
671
        if (signal_pending(current))
672
                return -ERESTARTSYS;
673
 
674
        spin_lock_irqsave(&zr->spinlock, flags);
675
        zr36057_set_memgrab(zr, 0);
676
        spin_unlock_irqrestore(&zr->spinlock, flags);
677
 
678
        return 0;
679
}
680
 
681
/*****************************************************************************
682
 *                                                                           *
683
 *  Set up the Buz-specific MJPEG part                                       *
684
 *                                                                           *
685
 *****************************************************************************/
686
 
687
static inline void
688
set_frame (struct zoran *zr,
689
           int           val)
690
{
691
        GPIO(zr, zr->card.gpio[GPIO_JPEG_FRAME], val);
692
}
693
 
694
static void
695
set_videobus_dir (struct zoran *zr,
696
                  int           val)
697
{
698
        switch (zr->card.type) {
699
        case LML33:
700
        case LML33R10:
701
                if (lml33dpath == 0)
702
                        GPIO(zr, 5, val);
703
                else
704
                        GPIO(zr, 5, 1);
705
                break;
706
        default:
707
                GPIO(zr, zr->card.gpio[GPIO_VID_DIR],
708
                     zr->card.gpio_pol[GPIO_VID_DIR] ? !val : val);
709
                break;
710
        }
711
}
712
 
713
static void
714
init_jpeg_queue (struct zoran *zr)
715
{
716
        int i;
717
 
718
        /* re-initialize DMA ring stuff */
719
        zr->jpg_que_head = 0;
720
        zr->jpg_dma_head = 0;
721
        zr->jpg_dma_tail = 0;
722
        zr->jpg_que_tail = 0;
723
        zr->jpg_seq_num = 0;
724
        zr->JPEG_error = 0;
725
        zr->num_errors = 0;
726
        zr->jpg_err_seq = 0;
727
        zr->jpg_err_shift = 0;
728
        zr->jpg_queued_num = 0;
729
        for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
730
                zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
731
        }
732
        for (i = 0; i < BUZ_NUM_STAT_COM; i++) {
733
                zr->stat_com[i] = cpu_to_le32(1);       /* mark as unavailable to zr36057 */
734
        }
735
}
736
 
737
static void
738
zr36057_set_jpg (struct zoran          *zr,
739
                 enum zoran_codec_mode  mode)
740
{
741
        struct tvnorm *tvn;
742
        u32 reg;
743
 
744
        tvn = zr->timing;
745
 
746
        /* assert P_Reset, disable code transfer, deassert Active */
747
        btwrite(0, ZR36057_JPC);
748
 
749
        /* MJPEG compression mode */
750
        switch (mode) {
751
 
752
        case BUZ_MODE_MOTION_COMPRESS:
753
        default:
754
                reg = ZR36057_JMC_MJPGCmpMode;
755
                break;
756
 
757
        case BUZ_MODE_MOTION_DECOMPRESS:
758
                reg = ZR36057_JMC_MJPGExpMode;
759
                reg |= ZR36057_JMC_SyncMstr;
760
                /* RJ: The following is experimental - improves the output to screen */
761
                //if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM
762
                break;
763
 
764
        case BUZ_MODE_STILL_COMPRESS:
765
                reg = ZR36057_JMC_JPGCmpMode;
766
                break;
767
 
768
        case BUZ_MODE_STILL_DECOMPRESS:
769
                reg = ZR36057_JMC_JPGExpMode;
770
                break;
771
 
772
        }
773
        reg |= ZR36057_JMC_JPG;
774
        if (zr->jpg_settings.field_per_buff == 1)
775
                reg |= ZR36057_JMC_Fld_per_buff;
776
        btwrite(reg, ZR36057_JMC);
777
 
778
        /* vertical */
779
        btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR);
780
        reg = (6 << ZR36057_VSP_VsyncSize) |
781
              (tvn->Ht << ZR36057_VSP_FrmTot);
782
        btwrite(reg, ZR36057_VSP);
783
        reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) |
784
              (zr->jpg_settings.img_height << ZR36057_FVAP_PAY);
785
        btwrite(reg, ZR36057_FVAP);
786
 
787
        /* horizontal */
788
        if (zr->card.vfe_pol.hsync_pol)
789
                btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
790
        else
791
                btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
792
        reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) |
793
              (tvn->Wt << ZR36057_HSP_LineTot);
794
        btwrite(reg, ZR36057_HSP);
795
        reg = ((zr->jpg_settings.img_x +
796
                tvn->HStart + 4) << ZR36057_FHAP_NAX) |
797
              (zr->jpg_settings.img_width << ZR36057_FHAP_PAX);
798
        btwrite(reg, ZR36057_FHAP);
799
 
800
        /* field process parameters */
801
        if (zr->jpg_settings.odd_even)
802
                reg = ZR36057_FPP_Odd_Even;
803
        else
804
                reg = 0;
805
 
806
        btwrite(reg, ZR36057_FPP);
807
 
808
        /* Set proper VCLK Polarity, else colors will be wrong during playback */
809
        //btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR);
810
 
811
        /* code base address */
812
        reg = virt_to_bus(zr->stat_com);
813
        btwrite(reg, ZR36057_JCBA);
814
 
815
        /* FIFO threshold (FIFO is 160. double words) */
816
        /* NOTE: decimal values here */
817
        switch (mode) {
818
 
819
        case BUZ_MODE_STILL_COMPRESS:
820
        case BUZ_MODE_MOTION_COMPRESS:
821
                if (zr->card.type != BUZ)
822
                        reg = 140;
823
                else
824
                        reg = 60;
825
                break;
826
 
827
        case BUZ_MODE_STILL_DECOMPRESS:
828
        case BUZ_MODE_MOTION_DECOMPRESS:
829
                reg = 20;
830
                break;
831
 
832
        default:
833
                reg = 80;
834
                break;
835
 
836
        }
837
        btwrite(reg, ZR36057_JCFT);
838
        zr36057_adjust_vfe(zr, mode);
839
 
840
}
841
 
842
void
843
print_interrupts (struct zoran *zr)
844
{
845
        int res, noerr = 0;
846
 
847
        printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr));
848
        if ((res = zr->field_counter) < -1 || res > 1) {
849
                printk(" FD:%d", res);
850
        }
851
        if ((res = zr->intr_counter_GIRQ1) != 0) {
852
                printk(" GIRQ1:%d", res);
853
                noerr++;
854
        }
855
        if ((res = zr->intr_counter_GIRQ0) != 0) {
856
                printk(" GIRQ0:%d", res);
857
                noerr++;
858
        }
859
        if ((res = zr->intr_counter_CodRepIRQ) != 0) {
860
                printk(" CodRepIRQ:%d", res);
861
                noerr++;
862
        }
863
        if ((res = zr->intr_counter_JPEGRepIRQ) != 0) {
864
                printk(" JPEGRepIRQ:%d", res);
865
                noerr++;
866
        }
867
        if (zr->JPEG_max_missed) {
868
                printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed,
869
                       zr->JPEG_min_missed);
870
        }
871
        if (zr->END_event_missed) {
872
                printk(" ENDs missed: %d", zr->END_event_missed);
873
        }
874
        //if (zr->jpg_queued_num) {
875
        printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail,
876
               zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head);
877
        //}
878
        if (!noerr) {
879
                printk(": no interrupts detected.");
880
        }
881
        printk("\n");
882
}
883
 
884
void
885
clear_interrupt_counters (struct zoran *zr)
886
{
887
        zr->intr_counter_GIRQ1 = 0;
888
        zr->intr_counter_GIRQ0 = 0;
889
        zr->intr_counter_CodRepIRQ = 0;
890
        zr->intr_counter_JPEGRepIRQ = 0;
891
        zr->field_counter = 0;
892
        zr->IRQ1_in = 0;
893
        zr->IRQ1_out = 0;
894
        zr->JPEG_in = 0;
895
        zr->JPEG_out = 0;
896
        zr->JPEG_0 = 0;
897
        zr->JPEG_1 = 0;
898
        zr->END_event_missed = 0;
899
        zr->JPEG_missed = 0;
900
        zr->JPEG_max_missed = 0;
901
        zr->JPEG_min_missed = 0x7fffffff;
902
}
903
 
904
static u32
905
count_reset_interrupt (struct zoran *zr)
906
{
907
        u32 isr;
908
 
909
        if ((isr = btread(ZR36057_ISR) & 0x78000000)) {
910
                if (isr & ZR36057_ISR_GIRQ1) {
911
                        btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR);
912
                        zr->intr_counter_GIRQ1++;
913
                }
914
                if (isr & ZR36057_ISR_GIRQ0) {
915
                        btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR);
916
                        zr->intr_counter_GIRQ0++;
917
                }
918
                if (isr & ZR36057_ISR_CodRepIRQ) {
919
                        btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR);
920
                        zr->intr_counter_CodRepIRQ++;
921
                }
922
                if (isr & ZR36057_ISR_JPEGRepIRQ) {
923
                        btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR);
924
                        zr->intr_counter_JPEGRepIRQ++;
925
                }
926
        }
927
        return isr;
928
}
929
 
930
/* hack */
931
extern void zr36016_write (struct videocodec *codec,
932
                           u16                reg,
933
                           u32                val);
934
 
935
void
936
jpeg_start (struct zoran *zr)
937
{
938
        int reg;
939
 
940
        zr->frame_num = 0;
941
 
942
        /* deassert P_reset, disable code transfer, deassert Active */
943
        btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
944
        /* stop flushing the internal code buffer */
945
        btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
946
        /* enable code transfer */
947
        btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC);
948
 
949
        /* clear IRQs */
950
        btwrite(IRQ_MASK, ZR36057_ISR);
951
        /* enable the JPEG IRQs */
952
        btwrite(zr->card.jpeg_int |
953
                        ZR36057_ICR_JPEGRepIRQ |
954
                        ZR36057_ICR_IntPinEn,
955
                ZR36057_ICR);
956
 
957
        set_frame(zr, 0);        // \FRAME
958
 
959
        /* set the JPEG codec guest ID */
960
        reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) |
961
               (0 << ZR36057_JCGI_JPEGuestReg);
962
        btwrite(reg, ZR36057_JCGI);
963
 
964
        if (zr->card.video_vfe == CODEC_TYPE_ZR36016 &&
965
            zr->card.video_codec == CODEC_TYPE_ZR36050) {
966
                /* Enable processing on the ZR36016 */
967
                if (zr->vfe)
968
                        zr36016_write(zr->vfe, 0, 1);
969
 
970
                /* load the address of the GO register in the ZR36050 latch */
971
                post_office_write(zr, 0, 0, 0);
972
        }
973
 
974
        /* assert Active */
975
        btor(ZR36057_JPC_Active, ZR36057_JPC);
976
 
977
        /* enable the Go generation */
978
        btor(ZR36057_JMC_Go_en, ZR36057_JMC);
979
        udelay(30);
980
 
981
        set_frame(zr, 1);       // /FRAME
982
 
983
        dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr));
984
}
985
 
986
void
987
zr36057_enable_jpg (struct zoran          *zr,
988
                    enum zoran_codec_mode  mode)
989
{
990
        static int zero = 0;
991
        static int one = 1;
992
        struct vfe_settings cap;
993
        int field_size =
994
            zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff;
995
 
996
        zr->codec_mode = mode;
997
 
998
        cap.x = zr->jpg_settings.img_x;
999
        cap.y = zr->jpg_settings.img_y;
1000
        cap.width = zr->jpg_settings.img_width;
1001
        cap.height = zr->jpg_settings.img_height;
1002
        cap.decimation =
1003
            zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8);
1004
        cap.quality = zr->jpg_settings.jpg_comp.quality;
1005
 
1006
        switch (mode) {
1007
 
1008
        case BUZ_MODE_MOTION_COMPRESS: {
1009
                struct jpeg_app_marker app;
1010
                struct jpeg_com_marker com;
1011
 
1012
                /* In motion compress mode, the decoder output must be enabled, and
1013
                 * the video bus direction set to input.
1014
                 */
1015
                set_videobus_dir(zr, 0);
1016
                decoder_command(zr, DECODER_ENABLE_OUTPUT, &one);
1017
                encoder_command(zr, ENCODER_SET_INPUT, &zero);
1018
 
1019
                /* Take the JPEG codec and the VFE out of sleep */
1020
                jpeg_codec_sleep(zr, 0);
1021
 
1022
                /* set JPEG app/com marker */
1023
                app.appn = zr->jpg_settings.jpg_comp.APPn;
1024
                app.len = zr->jpg_settings.jpg_comp.APP_len;
1025
                memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60);
1026
                zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA,
1027
                                   sizeof(struct jpeg_app_marker), &app);
1028
 
1029
                com.len = zr->jpg_settings.jpg_comp.COM_len;
1030
                memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60);
1031
                zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA,
1032
                                   sizeof(struct jpeg_com_marker), &com);
1033
 
1034
                /* Setup the JPEG codec */
1035
                zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE,
1036
                                   sizeof(int), &field_size);
1037
                zr->codec->set_video(zr->codec, zr->timing, &cap,
1038
                                     &zr->card.vfe_pol);
1039
                zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION);
1040
 
1041
                /* Setup the VFE */
1042
                if (zr->vfe) {
1043
                        zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE,
1044
                                         sizeof(int), &field_size);
1045
                        zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1046
                                           &zr->card.vfe_pol);
1047
                        zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION);
1048
                }
1049
 
1050
                init_jpeg_queue(zr);
1051
                zr36057_set_jpg(zr, mode);      // \P_Reset, ... Video param, FIFO
1052
 
1053
                clear_interrupt_counters(zr);
1054
                dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n",
1055
                        ZR_DEVNAME(zr));
1056
                break;
1057
        }
1058
 
1059
        case BUZ_MODE_MOTION_DECOMPRESS:
1060
                /* In motion decompression mode, the decoder output must be disabled, and
1061
                 * the video bus direction set to output.
1062
                 */
1063
                decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1064
                set_videobus_dir(zr, 1);
1065
                encoder_command(zr, ENCODER_SET_INPUT, &one);
1066
 
1067
                /* Take the JPEG codec and the VFE out of sleep */
1068
                jpeg_codec_sleep(zr, 0);
1069
                /* Setup the VFE */
1070
                if (zr->vfe) {
1071
                        zr->vfe->set_video(zr->vfe, zr->timing, &cap,
1072
                                           &zr->card.vfe_pol);
1073
                        zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION);
1074
                }
1075
                /* Setup the JPEG codec */
1076
                zr->codec->set_video(zr->codec, zr->timing, &cap,
1077
                                     &zr->card.vfe_pol);
1078
                zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION);
1079
 
1080
                init_jpeg_queue(zr);
1081
                zr36057_set_jpg(zr, mode);      // \P_Reset, ... Video param, FIFO
1082
 
1083
                clear_interrupt_counters(zr);
1084
                dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n",
1085
                        ZR_DEVNAME(zr));
1086
                break;
1087
 
1088
        case BUZ_MODE_IDLE:
1089
        default:
1090
                /* shut down processing */
1091
                btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ),
1092
                      ZR36057_ICR);
1093
                btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ,
1094
                        ZR36057_ISR);
1095
                btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en
1096
 
1097
                msleep(50);
1098
 
1099
                set_videobus_dir(zr, 0);
1100
                set_frame(zr, 1);       // /FRAME
1101
                btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);      // /CFlush
1102
                btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active
1103
                btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
1104
                btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
1105
                jpeg_codec_reset(zr);
1106
                jpeg_codec_sleep(zr, 1);
1107
                zr36057_adjust_vfe(zr, mode);
1108
 
1109
                decoder_command(zr, DECODER_ENABLE_OUTPUT, &one);
1110
                encoder_command(zr, ENCODER_SET_INPUT, &zero);
1111
 
1112
                dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
1113
                break;
1114
 
1115
        }
1116
}
1117
 
1118
/* when this is called the spinlock must be held */
1119
void
1120
zoran_feed_stat_com (struct zoran *zr)
1121
{
1122
        /* move frames from pending queue to DMA */
1123
 
1124
        int frame, i, max_stat_com;
1125
 
1126
        max_stat_com =
1127
            (zr->jpg_settings.TmpDcm ==
1128
             1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1);
1129
 
1130
        while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com &&
1131
               zr->jpg_dma_head < zr->jpg_que_head) {
1132
 
1133
                frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME];
1134
                if (zr->jpg_settings.TmpDcm == 1) {
1135
                        /* fill 1 stat_com entry */
1136
                        i = (zr->jpg_dma_head -
1137
                             zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1138
                        if (!(zr->stat_com[i] & cpu_to_le32(1)))
1139
                                break;
1140
                        zr->stat_com[i] =
1141
                            cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
1142
                } else {
1143
                        /* fill 2 stat_com entries */
1144
                        i = ((zr->jpg_dma_head -
1145
                              zr->jpg_err_shift) & 1) * 2;
1146
                        if (!(zr->stat_com[i] & cpu_to_le32(1)))
1147
                                break;
1148
                        zr->stat_com[i] =
1149
                            cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
1150
                        zr->stat_com[i + 1] =
1151
                            cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
1152
                }
1153
                zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA;
1154
                zr->jpg_dma_head++;
1155
 
1156
        }
1157
        if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS)
1158
                zr->jpg_queued_num++;
1159
}
1160
 
1161
/* when this is called the spinlock must be held */
1162
static void
1163
zoran_reap_stat_com (struct zoran *zr)
1164
{
1165
        /* move frames from DMA queue to done queue */
1166
 
1167
        int i;
1168
        u32 stat_com;
1169
        unsigned int seq;
1170
        unsigned int dif;
1171
        struct zoran_jpg_buffer *buffer;
1172
        int frame;
1173
 
1174
        /* In motion decompress we don't have a hardware frame counter,
1175
         * we just count the interrupts here */
1176
 
1177
        if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1178
                zr->jpg_seq_num++;
1179
        }
1180
        while (zr->jpg_dma_tail < zr->jpg_dma_head) {
1181
                if (zr->jpg_settings.TmpDcm == 1)
1182
                        i = (zr->jpg_dma_tail -
1183
                             zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1184
                else
1185
                        i = ((zr->jpg_dma_tail -
1186
                              zr->jpg_err_shift) & 1) * 2 + 1;
1187
 
1188
                stat_com = le32_to_cpu(zr->stat_com[i]);
1189
 
1190
                if ((stat_com & 1) == 0) {
1191
                        return;
1192
                }
1193
                frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1194
                buffer = &zr->jpg_buffers.buffer[frame];
1195
                do_gettimeofday(&buffer->bs.timestamp);
1196
 
1197
                if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1198
                        buffer->bs.length = (stat_com & 0x7fffff) >> 1;
1199
 
1200
                        /* update sequence number with the help of the counter in stat_com */
1201
 
1202
                        seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff;
1203
                        dif = (seq - zr->jpg_seq_num) & 0xff;
1204
                        zr->jpg_seq_num += dif;
1205
                } else {
1206
                        buffer->bs.length = 0;
1207
                }
1208
                buffer->bs.seq =
1209
                    zr->jpg_settings.TmpDcm ==
1210
                    2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
1211
                buffer->state = BUZ_STATE_DONE;
1212
 
1213
                zr->jpg_dma_tail++;
1214
        }
1215
}
1216
 
1217
static void
1218
error_handler (struct zoran *zr,
1219
               u32           astat,
1220
               u32           stat)
1221
{
1222
        /* This is JPEG error handling part */
1223
        if ((zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) &&
1224
            (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS)) {
1225
                //dprintk(1, KERN_ERR "%s: Internal error: error handling request in mode %d\n", ZR_DEVNAME(zr), zr->codec_mode);
1226
                return;
1227
        }
1228
 
1229
        if ((stat & 1) == 0 &&
1230
            zr->codec_mode == BUZ_MODE_MOTION_COMPRESS &&
1231
            zr->jpg_dma_tail - zr->jpg_que_tail >=
1232
             zr->jpg_buffers.num_buffers) {
1233
                /* No free buffers... */
1234
                zoran_reap_stat_com(zr);
1235
                zoran_feed_stat_com(zr);
1236
                wake_up_interruptible(&zr->jpg_capq);
1237
                zr->JPEG_missed = 0;
1238
                return;
1239
        }
1240
 
1241
        if (zr->JPEG_error != 1) {
1242
                /*
1243
                 * First entry: error just happened during normal operation
1244
                 *
1245
                 * In BUZ_MODE_MOTION_COMPRESS:
1246
                 *
1247
                 * Possible glitch in TV signal. In this case we should
1248
                 * stop the codec and wait for good quality signal before
1249
                 * restarting it to avoid further problems
1250
                 *
1251
                 * In BUZ_MODE_MOTION_DECOMPRESS:
1252
                 *
1253
                 * Bad JPEG frame: we have to mark it as processed (codec crashed
1254
                 * and was not able to do it itself), and to remove it from queue.
1255
                 */
1256
                btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1257
                udelay(1);
1258
                stat = stat | (post_office_read(zr, 7, 0) & 3) << 8;
1259
                btwrite(0, ZR36057_JPC);
1260
                btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
1261
                jpeg_codec_reset(zr);
1262
                jpeg_codec_sleep(zr, 1);
1263
                zr->JPEG_error = 1;
1264
                zr->num_errors++;
1265
 
1266
                /* Report error */
1267
                if (zr36067_debug > 1 && zr->num_errors <= 8) {
1268
                        long frame;
1269
                        frame =
1270
                            zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
1271
                        printk(KERN_ERR
1272
                               "%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ",
1273
                               ZR_DEVNAME(zr), stat, zr->last_isr,
1274
                               zr->jpg_que_tail, zr->jpg_dma_tail,
1275
                               zr->jpg_dma_head, zr->jpg_que_head,
1276
                               zr->jpg_seq_num, frame);
1277
                        printk("stat_com frames:");
1278
                        {
1279
                                int i, j;
1280
                                for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1281
                                        for (i = 0;
1282
                                             i < zr->jpg_buffers.num_buffers;
1283
                                             i++) {
1284
                                                if (le32_to_cpu(zr->stat_com[j]) ==
1285
                                                    zr->jpg_buffers.
1286
                                                    buffer[i].
1287
                                                    frag_tab_bus) {
1288
                                                        printk("% d->%d",
1289
                                                               j, i);
1290
                                                }
1291
                                        }
1292
                                }
1293
                                printk("\n");
1294
                        }
1295
                }
1296
                /* Find an entry in stat_com and rotate contents */
1297
                {
1298
                        int i;
1299
 
1300
                        if (zr->jpg_settings.TmpDcm == 1)
1301
                                i = (zr->jpg_dma_tail -
1302
                                     zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
1303
                        else
1304
                                i = ((zr->jpg_dma_tail -
1305
                                      zr->jpg_err_shift) & 1) * 2;
1306
                        if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
1307
                                /* Mimic zr36067 operation */
1308
                                zr->stat_com[i] |= cpu_to_le32(1);
1309
                                if (zr->jpg_settings.TmpDcm != 1)
1310
                                        zr->stat_com[i + 1] |= cpu_to_le32(1);
1311
                                /* Refill */
1312
                                zoran_reap_stat_com(zr);
1313
                                zoran_feed_stat_com(zr);
1314
                                wake_up_interruptible(&zr->jpg_capq);
1315
                                /* Find an entry in stat_com again after refill */
1316
                                if (zr->jpg_settings.TmpDcm == 1)
1317
                                        i = (zr->jpg_dma_tail -
1318
                                             zr->jpg_err_shift) &
1319
                                            BUZ_MASK_STAT_COM;
1320
                                else
1321
                                        i = ((zr->jpg_dma_tail -
1322
                                              zr->jpg_err_shift) & 1) * 2;
1323
                        }
1324
                        if (i) {
1325
                                /* Rotate stat_comm entries to make current entry first */
1326
                                int j;
1327
                                u32 bus_addr[BUZ_NUM_STAT_COM];
1328
 
1329
                                /* Here we are copying the stat_com array, which
1330
                                 * is already in little endian format, so
1331
                                 * no endian conversions here
1332
                                 */
1333
                                memcpy(bus_addr, zr->stat_com,
1334
                                       sizeof(bus_addr));
1335
                                for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1336
                                        zr->stat_com[j] =
1337
                                            bus_addr[(i + j) &
1338
                                                     BUZ_MASK_STAT_COM];
1339
 
1340
                                }
1341
                                zr->jpg_err_shift += i;
1342
                                zr->jpg_err_shift &= BUZ_MASK_STAT_COM;
1343
                        }
1344
                        if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)
1345
                                zr->jpg_err_seq = zr->jpg_seq_num;      /* + 1; */
1346
                }
1347
        }
1348
 
1349
        /* Now the stat_comm buffer is ready for restart */
1350
        do {
1351
                int status, mode;
1352
 
1353
                if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1354
                        decoder_command(zr, DECODER_GET_STATUS, &status);
1355
                        mode = CODEC_DO_COMPRESSION;
1356
                } else {
1357
                        status = 0;
1358
                        mode = CODEC_DO_EXPANSION;
1359
                }
1360
                if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1361
                    (status & DECODER_STATUS_GOOD)) {
1362
                        /********** RESTART code *************/
1363
                        jpeg_codec_reset(zr);
1364
                        zr->codec->set_mode(zr->codec, mode);
1365
                        zr36057_set_jpg(zr, zr->codec_mode);
1366
                        jpeg_start(zr);
1367
 
1368
                        if (zr->num_errors <= 8)
1369
                                dprintk(2, KERN_INFO "%s: Restart\n",
1370
                                        ZR_DEVNAME(zr));
1371
 
1372
                        zr->JPEG_missed = 0;
1373
                        zr->JPEG_error = 2;
1374
                        /********** End RESTART code ***********/
1375
                }
1376
        } while (0);
1377
}
1378
 
1379
irqreturn_t
1380
zoran_irq (int             irq,
1381
           void           *dev_id)
1382
{
1383
        u32 stat, astat;
1384
        int count;
1385
        struct zoran *zr;
1386
        unsigned long flags;
1387
 
1388
        zr = dev_id;
1389
        count = 0;
1390
 
1391
        if (zr->testing) {
1392
                /* Testing interrupts */
1393
                spin_lock_irqsave(&zr->spinlock, flags);
1394
                while ((stat = count_reset_interrupt(zr))) {
1395
                        if (count++ > 100) {
1396
                                btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1397
                                dprintk(1,
1398
                                        KERN_ERR
1399
                                        "%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n",
1400
                                        ZR_DEVNAME(zr), stat);
1401
                                wake_up_interruptible(&zr->test_q);
1402
                        }
1403
                }
1404
                zr->last_isr = stat;
1405
                spin_unlock_irqrestore(&zr->spinlock, flags);
1406
                return IRQ_HANDLED;
1407
        }
1408
 
1409
        spin_lock_irqsave(&zr->spinlock, flags);
1410
        while (1) {
1411
                /* get/clear interrupt status bits */
1412
                stat = count_reset_interrupt(zr);
1413
                astat = stat & IRQ_MASK;
1414
                if (!astat) {
1415
                        break;
1416
                }
1417
                dprintk(4,
1418
                        KERN_DEBUG
1419
                        "zoran_irq: astat: 0x%08x, mask: 0x%08x\n",
1420
                        astat, btread(ZR36057_ICR));
1421
                if (astat & zr->card.vsync_int) {       // SW
1422
 
1423
                        if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1424
                            zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1425
                                /* count missed interrupts */
1426
                                zr->JPEG_missed++;
1427
                        }
1428
                        //post_office_read(zr,1,0);
1429
                        /* Interrupts may still happen when
1430
                         * zr->v4l_memgrab_active is switched off.
1431
                         * We simply ignore them */
1432
 
1433
                        if (zr->v4l_memgrab_active) {
1434
 
1435
                                /* A lot more checks should be here ... */
1436
                                if ((btread(ZR36057_VSSFGR) &
1437
                                     ZR36057_VSSFGR_SnapShot) == 0)
1438
                                        dprintk(1,
1439
                                                KERN_WARNING
1440
                                                "%s: BuzIRQ with SnapShot off ???\n",
1441
                                                ZR_DEVNAME(zr));
1442
 
1443
                                if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) {
1444
                                        /* There is a grab on a frame going on, check if it has finished */
1445
 
1446
                                        if ((btread(ZR36057_VSSFGR) &
1447
                                             ZR36057_VSSFGR_FrameGrab) ==
1448
                                            0) {
1449
                                                /* it is finished, notify the user */
1450
 
1451
                                                zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
1452
                                                zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
1453
                                                do_gettimeofday(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
1454
                                                zr->v4l_grab_frame = NO_GRAB_ACTIVE;
1455
                                                zr->v4l_pend_tail++;
1456
                                        }
1457
                                }
1458
 
1459
                                if (zr->v4l_grab_frame == NO_GRAB_ACTIVE)
1460
                                        wake_up_interruptible(&zr->v4l_capq);
1461
 
1462
                                /* Check if there is another grab queued */
1463
 
1464
                                if (zr->v4l_grab_frame == NO_GRAB_ACTIVE &&
1465
                                    zr->v4l_pend_tail != zr->v4l_pend_head) {
1466
 
1467
                                        int frame = zr->v4l_pend[zr->v4l_pend_tail &
1468
                                                         V4L_MASK_FRAME];
1469
                                        u32 reg;
1470
 
1471
                                        zr->v4l_grab_frame = frame;
1472
 
1473
                                        /* Set zr36057 video front end and enable video */
1474
 
1475
                                        /* Buffer address */
1476
 
1477
                                        reg =
1478
                                            zr->v4l_buffers.buffer[frame].
1479
                                            fbuffer_bus;
1480
                                        btwrite(reg, ZR36057_VDTR);
1481
                                        if (zr->v4l_settings.height >
1482
                                            BUZ_MAX_HEIGHT / 2)
1483
                                                reg +=
1484
                                                    zr->v4l_settings.
1485
                                                    bytesperline;
1486
                                        btwrite(reg, ZR36057_VDBR);
1487
 
1488
                                        /* video stride, status, and frame grab register */
1489
                                        reg = 0;
1490
                                        if (zr->v4l_settings.height >
1491
                                            BUZ_MAX_HEIGHT / 2)
1492
                                                reg +=
1493
                                                    zr->v4l_settings.
1494
                                                    bytesperline;
1495
                                        reg =
1496
                                            (reg <<
1497
                                             ZR36057_VSSFGR_DispStride);
1498
                                        reg |= ZR36057_VSSFGR_VidOvf;
1499
                                        reg |= ZR36057_VSSFGR_SnapShot;
1500
                                        reg |= ZR36057_VSSFGR_FrameGrab;
1501
                                        btwrite(reg, ZR36057_VSSFGR);
1502
 
1503
                                        btor(ZR36057_VDCR_VidEn,
1504
                                             ZR36057_VDCR);
1505
                                }
1506
                        }
1507
 
1508
                        /* even if we don't grab, we do want to increment
1509
                         * the sequence counter to see lost frames */
1510
                        zr->v4l_grab_seq++;
1511
                }
1512
#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
1513
                if (astat & ZR36057_ISR_CodRepIRQ) {
1514
                        zr->intr_counter_CodRepIRQ++;
1515
                        IDEBUG(printk
1516
                               (KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n",
1517
                                ZR_DEVNAME(zr)));
1518
                        btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR);
1519
                }
1520
#endif                          /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */
1521
 
1522
#if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ)
1523
                if (astat & ZR36057_ISR_JPEGRepIRQ) {
1524
 
1525
                        if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
1526
                            zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
1527
                                if (zr36067_debug > 1 &&
1528
                                    (!zr->frame_num || zr->JPEG_error)) {
1529
                                        printk(KERN_INFO
1530
                                               "%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
1531
                                               ZR_DEVNAME(zr), stat,
1532
                                               zr->jpg_settings.odd_even,
1533
                                               zr->jpg_settings.
1534
                                               field_per_buff,
1535
                                               zr->JPEG_missed);
1536
                                        {
1537
                                                char sc[] = "0000";
1538
                                                char sv[5];
1539
                                                int i;
1540
                                                strcpy(sv, sc);
1541
                                                for (i = 0; i < 4; i++) {
1542
                                                        if (le32_to_cpu(zr->stat_com[i]) & 1)
1543
                                                                sv[i] = '1';
1544
                                                }
1545
                                                sv[4] = 0;
1546
                                                printk(KERN_INFO
1547
                                                       "%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n",
1548
                                                       ZR_DEVNAME(zr), sv,
1549
                                                       zr->jpg_que_tail,
1550
                                                       zr->jpg_dma_tail,
1551
                                                       zr->jpg_dma_head,
1552
                                                       zr->jpg_que_head);
1553
                                        }
1554
                                } else {
1555
                                        if (zr->JPEG_missed > zr->JPEG_max_missed)      // Get statistics
1556
                                                zr->JPEG_max_missed =
1557
                                                    zr->JPEG_missed;
1558
                                        if (zr->JPEG_missed <
1559
                                            zr->JPEG_min_missed)
1560
                                                zr->JPEG_min_missed =
1561
                                                    zr->JPEG_missed;
1562
                                }
1563
 
1564
                                if (zr36067_debug > 2 && zr->frame_num < 6) {
1565
                                        int i;
1566
                                        printk("%s: seq=%ld stat_com:",
1567
                                               ZR_DEVNAME(zr), zr->jpg_seq_num);
1568
                                        for (i = 0; i < 4; i++) {
1569
                                                printk(" %08x",
1570
                                                       le32_to_cpu(zr->stat_com[i]));
1571
                                        }
1572
                                        printk("\n");
1573
                                }
1574
                                zr->frame_num++;
1575
                                zr->JPEG_missed = 0;
1576
                                zr->JPEG_error = 0;
1577
                                zoran_reap_stat_com(zr);
1578
                                zoran_feed_stat_com(zr);
1579
                                wake_up_interruptible(&zr->jpg_capq);
1580
                        } /*else {
1581
                              dprintk(1,
1582
                                        KERN_ERR
1583
                                        "%s: JPEG interrupt while not in motion (de)compress mode!\n",
1584
                                        ZR_DEVNAME(zr));
1585
                        }*/
1586
                }
1587
#endif                          /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
1588
 
1589
                /* DATERR, too many fields missed, error processing */
1590
                if ((astat & zr->card.jpeg_int) ||
1591
                    zr->JPEG_missed > 25 ||
1592
                    zr->JPEG_error == 1 ||
1593
                    ((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) &&
1594
                     (zr->frame_num & (zr->JPEG_missed >
1595
                                       zr->jpg_settings.field_per_buff)))) {
1596
                        error_handler(zr, astat, stat);
1597
                }
1598
 
1599
                count++;
1600
                if (count > 10) {
1601
                        dprintk(2, KERN_WARNING "%s: irq loop %d\n",
1602
                                ZR_DEVNAME(zr), count);
1603
                        if (count > 20) {
1604
                                btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1605
                                dprintk(2,
1606
                                        KERN_ERR
1607
                                        "%s: IRQ lockup, cleared int mask\n",
1608
                                        ZR_DEVNAME(zr));
1609
                                break;
1610
                        }
1611
                }
1612
                zr->last_isr = stat;
1613
        }
1614
        spin_unlock_irqrestore(&zr->spinlock, flags);
1615
 
1616
        return IRQ_HANDLED;
1617
}
1618
 
1619
void
1620
zoran_set_pci_master (struct zoran *zr,
1621
                      int           set_master)
1622
{
1623
        if (set_master) {
1624
                pci_set_master(zr->pci_dev);
1625
        } else {
1626
                u16 command;
1627
 
1628
                pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command);
1629
                command &= ~PCI_COMMAND_MASTER;
1630
                pci_write_config_word(zr->pci_dev, PCI_COMMAND, command);
1631
        }
1632
}
1633
 
1634
void
1635
zoran_init_hardware (struct zoran *zr)
1636
{
1637
        int j, zero = 0;
1638
 
1639
        /* Enable bus-mastering */
1640
        zoran_set_pci_master(zr, 1);
1641
 
1642
        /* Initialize the board */
1643
        if (zr->card.init) {
1644
                zr->card.init(zr);
1645
        }
1646
 
1647
        j = zr->card.input[zr->input].muxsel;
1648
 
1649
        decoder_command(zr, 0, NULL);
1650
        decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1651
        decoder_command(zr, DECODER_SET_INPUT, &j);
1652
 
1653
        encoder_command(zr, 0, NULL);
1654
        encoder_command(zr, ENCODER_SET_NORM, &zr->norm);
1655
        encoder_command(zr, ENCODER_SET_INPUT, &zero);
1656
 
1657
        /* toggle JPEG codec sleep to sync PLL */
1658
        jpeg_codec_sleep(zr, 1);
1659
        jpeg_codec_sleep(zr, 0);
1660
 
1661
        /* set individual interrupt enables (without GIRQ1)
1662
         * but don't global enable until zoran_open() */
1663
 
1664
        //btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR);  // SW
1665
        // It looks like using only JPEGRepIRQEn is not always reliable,
1666
        // may be when JPEG codec crashes it won't generate IRQ? So,
1667
         /*CP*/                 //        btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM    WHY ? LP
1668
            zr36057_init_vfe(zr);
1669
 
1670
        zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1671
 
1672
        btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
1673
}
1674
 
1675
void
1676
zr36057_restart (struct zoran *zr)
1677
{
1678
        btwrite(0, ZR36057_SPGPPCR);
1679
        mdelay(1);
1680
        btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
1681
        mdelay(1);
1682
 
1683
        /* assert P_Reset */
1684
        btwrite(0, ZR36057_JPC);
1685
        /* set up GPIO direction - all output */
1686
        btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
1687
 
1688
        /* set up GPIO pins and guest bus timing */
1689
        btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1);
1690
}
1691
 
1692
/*
1693
 * initialize video front end
1694
 */
1695
 
1696
static void
1697
zr36057_init_vfe (struct zoran *zr)
1698
{
1699
        u32 reg;
1700
 
1701
        reg = btread(ZR36057_VFESPFR);
1702
        reg |= ZR36057_VFESPFR_LittleEndian;
1703
        reg &= ~ZR36057_VFESPFR_VCLKPol;
1704
        reg |= ZR36057_VFESPFR_ExtFl;
1705
        reg |= ZR36057_VFESPFR_TopField;
1706
        btwrite(reg, ZR36057_VFESPFR);
1707
        reg = btread(ZR36057_VDCR);
1708
        if (pci_pci_problems & PCIPCI_TRITON)
1709
                // || zr->revision < 1) // Revision 1 has also Triton support
1710
                reg &= ~ZR36057_VDCR_Triton;
1711
        else
1712
                reg |= ZR36057_VDCR_Triton;
1713
        btwrite(reg, ZR36057_VDCR);
1714
}
1715
 
1716
/*
1717
 * Interface to decoder and encoder chips using i2c bus
1718
 */
1719
 
1720
int
1721
decoder_command (struct zoran *zr,
1722
                 int           cmd,
1723
                 void         *data)
1724
{
1725
        if (zr->decoder == NULL)
1726
                return -EIO;
1727
 
1728
        if (zr->card.type == LML33 &&
1729
            (cmd == DECODER_SET_NORM || DECODER_SET_INPUT)) {
1730
                int res;
1731
 
1732
                // Bt819 needs to reset its FIFO buffer using #FRST pin and
1733
                // LML33 card uses GPIO(7) for that.
1734
                GPIO(zr, 7, 0);
1735
                res = zr->decoder->driver->command(zr->decoder, cmd, data);
1736
                // Pull #FRST high.
1737
                GPIO(zr, 7, 1);
1738
                return res;
1739
        } else
1740
                return zr->decoder->driver->command(zr->decoder, cmd,
1741
                                                    data);
1742
}
1743
 
1744
int
1745
encoder_command (struct zoran *zr,
1746
                 int           cmd,
1747
                 void         *data)
1748
{
1749
        if (zr->encoder == NULL)
1750
                return -1;
1751
 
1752
        return zr->encoder->driver->command(zr->encoder, cmd, data);
1753
}

powered by: WebSVN 2.1.0

© copyright 1999-2025 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.