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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / zr36120.c
1 /*
2 zr36120.c - Zoran 36120/36125 based framegrabbers
3
4 Copyright (C) 1998-1999 Pauline Middelink <middelin@polyware.nl>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include <linux/module.h>
22 #include <linux/delay.h>
23 #include <linux/init.h>
24 #include <linux/errno.h>
25 #include <linux/fs.h>
26 #include <linux/kernel.h>
27 #include <linux/major.h>
28 #include <linux/slab.h>
29 #include <linux/vmalloc.h>
30 #include <linux/mm.h>
31 #include <linux/pci.h>
32 #include <linux/signal.h>
33 #include <linux/wait.h>
34 #include <asm/io.h>
35 #include <asm/pgtable.h>
36 #include <asm/page.h>
37 #include <linux/sched.h>
38 #include <linux/video_decoder.h>
39
40 #include <asm/uaccess.h>
41
42 #include "tuner.h"
43 #include "zr36120.h"
44 #include "zr36120_mem.h"
45
46 /* mark an required function argument unused - lintism */
47 #define UNUSED(x) (void)(x)
48
49 /* sensible default */
50 #ifndef CARDTYPE
51 #define CARDTYPE 0
52 #endif
53
54 /* Anybody who uses more than four? */
55 #define ZORAN_MAX 4
56
57 static unsigned int triton1=0; /* triton1 chipset? */
58 static unsigned int cardtype[ZORAN_MAX]={ [ 0 ... ZORAN_MAX-1 ] = CARDTYPE };
59 static int video_nr = -1;
60 static int vbi_nr = -1;
61
62 static struct pci_device_id zr36120_pci_tbl[] = {
63 { PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120,
64 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
65 { 0 }
66 };
67 MODULE_DEVICE_TABLE(pci, zr36120_pci_tbl);
68
69 MODULE_AUTHOR("Pauline Middelink <middelin@polyware.nl>");
70 MODULE_DESCRIPTION("Zoran ZR36120 based framegrabber");
71 MODULE_LICENSE("GPL");
72
73 module_param(triton1, uint, 0);
74 module_param_array(cardtype, uint, NULL, 0);
75 module_param(video_nr, int, 0);
76 module_param(vbi_nr, int, 0);
77
78 static int zoran_cards;
79 static struct zoran zorans[ZORAN_MAX];
80
81 /*
82 * the meaning of each element can be found in zr36120.h
83 * Determining the value of gpdir/gpval can be tricky. The
84 * best way is to run the card under the original software
85 * and read the values from the general purpose registers
86 * 0x28 and 0x2C. How you do that is left as an exercise
87 * to the impatient reader :)
88 */
89 #define T 1 /* to separate the bools from the ints */
90 #define F 0
91 static struct tvcard tvcards[] = {
92 /* reported working by <middelin@polyware.nl> */
93 /*0*/ { "Trust Victor II",
94 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
95 /* reported working by <Michael.Paxton@aihw.gov.au> */
96 /*1*/ { "Aitech WaveWatcher TV-PCI",
97 3, 0, T, F, T, T, 0x7F, 0x80, { 1, TUNER(3), SVHS(6) }, { 0 } },
98 /* reported working by ? */
99 /*2*/ { "Genius Video Wonder PCI Video Capture Card",
100 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
101 /* reported working by <Pascal.Gabriel@wanadoo.fr> */
102 /*3*/ { "Guillemot Maxi-TV PCI",
103 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
104 /* reported working by "Craig Whitmore <lennon@igrin.co.nz> */
105 /*4*/ { "Quadrant Buster",
106 3, 3, T, F, T, T, 0x7F, 0x80, { SVHS(1), TUNER(2), 3 }, { 1, 2, 3 } },
107 /* a debug entry which has all inputs mapped */
108 /*5*/ { "ZR36120 based framegrabber (all inputs enabled)",
109 6, 0, T, T, T, T, 0x7F, 0x80, { 1, 2, 3, 4, 5, 6 }, { 0 } }
110 };
111 #undef T
112 #undef F
113 #define NRTVCARDS (sizeof(tvcards)/sizeof(tvcards[0]))
114
115 #ifdef __sparc__
116 #define ENDIANESS 0
117 #else
118 #define ENDIANESS ZORAN_VFEC_LE
119 #endif
120
121 static struct { const char name[8]; uint mode; uint bpp; } palette2fmt[] = {
122 /* n/a */ { "n/a", 0, 0 },
123 /* GREY */ { "GRAY", 0, 0 },
124 /* HI240 */ { "HI240", 0, 0 },
125 /* RGB565 */ { "RGB565", ZORAN_VFEC_RGB_RGB565|ENDIANESS, 2 },
126 /* RGB24 */ { "RGB24", ZORAN_VFEC_RGB_RGB888|ENDIANESS|ZORAN_VFEC_PACK24, 3 },
127 /* RGB32 */ { "RGB32", ZORAN_VFEC_RGB_RGB888|ENDIANESS, 4 },
128 /* RGB555 */ { "RGB555", ZORAN_VFEC_RGB_RGB555|ENDIANESS, 2 },
129 /* YUV422 */ { "YUV422", ZORAN_VFEC_RGB_YUV422|ENDIANESS, 2 },
130 /* YUYV */ { "YUYV", 0, 0 },
131 /* UYVY */ { "UYVY", 0, 0 },
132 /* YUV420 */ { "YUV420", 0, 0 },
133 /* YUV411 */ { "YUV411", 0, 0 },
134 /* RAW */ { "RAW", 0, 0 },
135 /* YUV422P */ { "YUV422P", 0, 0 },
136 /* YUV411P */ { "YUV411P", 0, 0 }};
137 #define NRPALETTES (sizeof(palette2fmt)/sizeof(palette2fmt[0]))
138 #undef ENDIANESS
139
140 /* ----------------------------------------------------------------------- */
141 /* ZORAN chipset detector */
142 /* shamelessly stolen from bttv.c */
143 /* Reason for beeing here: we need to detect if we are running on a */
144 /* Triton based chipset, and if so, enable a certain bit */
145 /* ----------------------------------------------------------------------- */
146 static
147 void __init handle_chipset(void)
148 {
149 /* Just in case some nut set this to something dangerous */
150 if (triton1)
151 triton1 = ZORAN_VDC_TRICOM;
152
153 if (pci_pci_problems & PCIPCI_TRITON) {
154 printk(KERN_INFO "zoran: Host bridge 82437FX Triton PIIX\n");
155 triton1 = ZORAN_VDC_TRICOM;
156 }
157 }
158
159 /* ----------------------------------------------------------------------- */
160 /* ZORAN functions */
161 /* ----------------------------------------------------------------------- */
162
163 static void zoran_set_geo(struct zoran* ztv, struct vidinfo* i);
164
165 #if 0 /* unused */
166 static
167 void zoran_dump(struct zoran *ztv)
168 {
169 char str[256];
170 char *p=str; /* shut up, gcc! */
171 int i;
172
173 for (i=0; i<0x60; i+=4) {
174 if ((i % 16) == 0) {
175 if (i) printk("%s\n",str);
176 p = str;
177 p+= sprintf(str, KERN_DEBUG " %04x: ",i);
178 }
179 p += sprintf(p, "%08x ",zrread(i));
180 }
181 }
182 #endif /* unused */
183
184 static
185 void reap_states(struct zoran* ztv)
186 {
187 /* count frames */
188 ztv->fieldnr++;
189
190 /*
191 * Are we busy at all?
192 * This depends on if there is a workqueue AND the
193 * videotransfer is enabled on the chip...
194 */
195 if (ztv->workqueue && (zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
196 {
197 struct vidinfo* newitem;
198
199 /* did we get a complete frame? */
200 if (zrread(ZORAN_VSTR) & ZORAN_VSTR_GRAB)
201 return;
202
203 DEBUG(printk(CARD_DEBUG "completed %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
204
205 /* we are done with this buffer, tell everyone */
206 ztv->workqueue->status = FBUFFER_DONE;
207 ztv->workqueue->fieldnr = ztv->fieldnr;
208 /* not good, here for BTTV_FIELDNR reasons */
209 ztv->lastfieldnr = ztv->fieldnr;
210
211 switch (ztv->workqueue->kindof) {
212 case FBUFFER_GRAB:
213 wake_up_interruptible(&ztv->grabq);
214 break;
215 case FBUFFER_VBI:
216 wake_up_interruptible(&ztv->vbiq);
217 break;
218 default:
219 printk(CARD_INFO "somebody killed the workqueue (kindof=%d)!\n",CARD,ztv->workqueue->kindof);
220 }
221
222 /* item completed, skip to next item in queue */
223 write_lock(&ztv->lock);
224 newitem = ztv->workqueue->next;
225 ztv->workqueue->next = 0; /* mark completed */
226 ztv->workqueue = newitem;
227 write_unlock(&ztv->lock);
228 }
229
230 /*
231 * ok, so it seems we have nothing in progress right now.
232 * Lets see if we can find some work.
233 */
234 if (ztv->workqueue)
235 {
236 struct vidinfo* newitem;
237 again:
238
239 DEBUG(printk(CARD_DEBUG "starting %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
240
241 /* loadup the frame settings */
242 read_lock(&ztv->lock);
243 zoran_set_geo(ztv,ztv->workqueue);
244 read_unlock(&ztv->lock);
245
246 switch (ztv->workqueue->kindof) {
247 case FBUFFER_GRAB:
248 case FBUFFER_VBI:
249 zrand(~ZORAN_OCR_OVLEN, ZORAN_OCR);
250 zror(ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
251 zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
252
253 /* start single-shot grab */
254 zror(ZORAN_VSTR_GRAB, ZORAN_VSTR);
255 break;
256 default:
257 printk(CARD_INFO "what is this doing on the queue? (kindof=%d)\n",CARD,ztv->workqueue->kindof);
258 write_lock(&ztv->lock);
259 newitem = ztv->workqueue->next;
260 ztv->workqueue->next = 0;
261 ztv->workqueue = newitem;
262 write_unlock(&ztv->lock);
263 if (newitem)
264 goto again; /* yeah, sure.. */
265 }
266 /* bye for now */
267 return;
268 }
269 DEBUG(printk(CARD_DEBUG "nothing in queue\n",CARD));
270
271 /*
272 * What? Even the workqueue is empty? Am i really here
273 * for nothing? Did i come all that way to... do nothing?
274 */
275
276 /* do we need to overlay? */
277 if (test_bit(STATE_OVERLAY, &ztv->state))
278 {
279 /* are we already overlaying? */
280 if (!(zrread(ZORAN_OCR) & ZORAN_OCR_OVLEN) ||
281 !(zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
282 {
283 DEBUG(printk(CARD_DEBUG "starting overlay\n",CARD));
284
285 read_lock(&ztv->lock);
286 zoran_set_geo(ztv,&ztv->overinfo);
287 read_unlock(&ztv->lock);
288
289 zror(ZORAN_OCR_OVLEN, ZORAN_OCR);
290 zrand(~ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
291 zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
292 }
293
294 /*
295 * leave overlaying on, but turn interrupts off.
296 */
297 zrand(~ZORAN_ICR_EN,ZORAN_ICR);
298 return;
299 }
300
301 /* do we have any VBI idle time processing? */
302 if (test_bit(STATE_VBI, &ztv->state))
303 {
304 struct vidinfo* item;
305 struct vidinfo* lastitem;
306
307 /* protect the workqueue */
308 write_lock(&ztv->lock);
309 lastitem = ztv->workqueue;
310 if (lastitem)
311 while (lastitem->next) lastitem = lastitem->next;
312 for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
313 if (item->next == 0 && item->status == FBUFFER_FREE)
314 {
315 DEBUG(printk(CARD_DEBUG "%p added to queue\n",CARD,item));
316 item->status = FBUFFER_BUSY;
317 if (!lastitem)
318 ztv->workqueue = item;
319 else
320 lastitem->next = item;
321 lastitem = item;
322 }
323 write_unlock(&ztv->lock);
324 if (ztv->workqueue)
325 goto again; /* hey, _i_ graduated :) */
326 }
327
328 /*
329 * Then we must be realy IDLE
330 */
331 DEBUG(printk(CARD_DEBUG "turning off\n",CARD));
332 /* nothing further to do, disable DMA and further IRQs */
333 zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
334 zrand(~ZORAN_ICR_EN,ZORAN_ICR);
335 }
336
337 static
338 void zoran_irq(int irq, void *dev_id)
339 {
340 u32 stat,estat;
341 int count = 0;
342 struct zoran *ztv = dev_id;
343
344 UNUSED(irq);
345 for (;;) {
346 /* get/clear interrupt status bits */
347 stat=zrread(ZORAN_ISR);
348 estat=stat & zrread(ZORAN_ICR);
349 if (!estat)
350 return;
351 zrwrite(estat,ZORAN_ISR);
352 IDEBUG(printk(CARD_DEBUG "estat %08x\n",CARD,estat));
353 IDEBUG(printk(CARD_DEBUG " stat %08x\n",CARD,stat));
354
355 if (estat & ZORAN_ISR_CODE)
356 {
357 IDEBUG(printk(CARD_DEBUG "CodReplIRQ\n",CARD));
358 }
359 if (estat & ZORAN_ISR_GIRQ0)
360 {
361 IDEBUG(printk(CARD_DEBUG "GIRQ0\n",CARD));
362 if (!ztv->card->usegirq1)
363 reap_states(ztv);
364 }
365 if (estat & ZORAN_ISR_GIRQ1)
366 {
367 IDEBUG(printk(CARD_DEBUG "GIRQ1\n",CARD));
368 if (ztv->card->usegirq1)
369 reap_states(ztv);
370 }
371
372 count++;
373 if (count > 10)
374 printk(CARD_ERR "irq loop %d (%x)\n",CARD,count,estat);
375 if (count > 20)
376 {
377 zrwrite(0, ZORAN_ICR);
378 printk(CARD_ERR "IRQ lockup, cleared int mask\n",CARD);
379 }
380 }
381 }
382
383 static
384 int zoran_muxsel(struct zoran* ztv, int channel, int norm)
385 {
386 int rv;
387
388 /* set the new video norm */
389 rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &norm);
390 if (rv)
391 return rv;
392 ztv->norm = norm;
393
394 /* map the given channel to the cards decoder's channel */
395 channel = ztv->card->video_mux[channel] & CHANNEL_MASK;
396
397 /* set the new channel */
398 rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &channel);
399 return rv;
400 }
401
402 /* Tell the interrupt handler what to to. */
403 static
404 void zoran_cap(struct zoran* ztv, int on)
405 {
406 DEBUG(printk(CARD_DEBUG "zoran_cap(%d) state=%x\n",CARD,on,ztv->state));
407
408 if (on) {
409 ztv->running = 1;
410
411 /*
412 * turn interrupts (back) on. The DMA will be enabled
413 * inside the irq handler when it detects a restart.
414 */
415 zror(ZORAN_ICR_EN,ZORAN_ICR);
416 }
417 else {
418 /*
419 * turn both interrupts and DMA off
420 */
421 zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
422 zrand(~ZORAN_ICR_EN,ZORAN_ICR);
423
424 ztv->running = 0;
425 }
426 }
427
428 static ulong dmask[] = {
429 0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFF8,
430 0xFFFFFFF0, 0xFFFFFFE0, 0xFFFFFFC0, 0xFFFFFF80,
431 0xFFFFFF00, 0xFFFFFE00, 0xFFFFFC00, 0xFFFFF800,
432 0xFFFFF000, 0xFFFFE000, 0xFFFFC000, 0xFFFF8000,
433 0xFFFF0000, 0xFFFE0000, 0xFFFC0000, 0xFFF80000,
434 0xFFF00000, 0xFFE00000, 0xFFC00000, 0xFF800000,
435 0xFF000000, 0xFE000000, 0xFC000000, 0xF8000000,
436 0xF0000000, 0xE0000000, 0xC0000000, 0x80000000
437 };
438
439 static
440 void zoran_built_overlay(struct zoran* ztv, int count, struct video_clip *vcp)
441 {
442 ulong* mtop;
443 int ystep = (ztv->vidXshift + ztv->vidWidth+31)/32; /* next DWORD */
444 int i;
445
446 DEBUG(printk(KERN_DEBUG " overlay at %p, ystep=%d, clips=%d\n",ztv->overinfo.overlay,ystep,count));
447
448 for (i=0; i<count; i++) {
449 struct video_clip *vp = vcp+i;
450 UNUSED(vp);
451 DEBUG(printk(KERN_DEBUG " %d: clip(%d,%d,%d,%d)\n", i,vp->x,vp->y,vp->width,vp->height));
452 }
453
454 /*
455 * activate the visible portion of the screen
456 * Note we take some shortcuts here, because we
457 * know the width can never be < 32. (I.e. a DWORD)
458 * We also assume the overlay starts somewhere in
459 * the FIRST dword.
460 */
461 {
462 int start = ztv->vidXshift;
463 ulong firstd = dmask[start];
464 ulong lastd = ~dmask[(start + ztv->overinfo.w) & 31];
465 mtop = ztv->overinfo.overlay;
466 for (i=0; i<ztv->overinfo.h; i++) {
467 int w = ztv->vidWidth;
468 ulong* line = mtop;
469 if (start & 31) {
470 *line++ = firstd;
471 w -= 32-(start&31);
472 }
473 memset(line, ~0, w/8);
474 if (w & 31)
475 line[w/32] = lastd;
476 mtop += ystep;
477 }
478 }
479
480 /* process clipping regions */
481 for (i=0; i<count; i++) {
482 int h;
483 if (vcp->x < 0 || (uint)vcp->x > ztv->overinfo.w ||
484 vcp->y < 0 || vcp->y > ztv->overinfo.h ||
485 vcp->width < 0 || (uint)(vcp->x+vcp->width) > ztv->overinfo.w ||
486 vcp->height < 0 || (vcp->y+vcp->height) > ztv->overinfo.h)
487 {
488 DEBUG(printk(CARD_DEBUG "invalid clipzone (%d,%d,%d,%d) not in (0,0,%d,%d), adapting\n",CARD,vcp->x,vcp->y,vcp->width,vcp->height,ztv->overinfo.w,ztv->overinfo.h));
489 if (vcp->x < 0) vcp->x = 0;
490 if ((uint)vcp->x > ztv->overinfo.w) vcp->x = ztv->overinfo.w;
491 if (vcp->y < 0) vcp->y = 0;
492 if (vcp->y > ztv->overinfo.h) vcp->y = ztv->overinfo.h;
493 if (vcp->width < 0) vcp->width = 0;
494 if ((uint)(vcp->x+vcp->width) > ztv->overinfo.w) vcp->width = ztv->overinfo.w - vcp->x;
495 if (vcp->height < 0) vcp->height = 0;
496 if (vcp->y+vcp->height > ztv->overinfo.h) vcp->height = ztv->overinfo.h - vcp->y;
497 // continue;
498 }
499
500 mtop = &ztv->overinfo.overlay[vcp->y*ystep];
501 for (h=0; h<=vcp->height; h++) {
502 int w;
503 int x = ztv->vidXshift + vcp->x;
504 for (w=0; w<=vcp->width; w++) {
505 clear_bit(x&31, &mtop[x/32]);
506 x++;
507 }
508 mtop += ystep;
509 }
510 ++vcp;
511 }
512
513 mtop = ztv->overinfo.overlay;
514 zrwrite(virt_to_bus(mtop), ZORAN_MTOP);
515 zrwrite(virt_to_bus(mtop+ystep), ZORAN_MBOT);
516 zraor((ztv->vidInterlace*ystep)<<0,~ZORAN_OCR_MASKSTRIDE,ZORAN_OCR);
517 }
518
519 struct tvnorm
520 {
521 u16 Wt, Wa, Ht, Ha, HStart, VStart;
522 };
523
524 static struct tvnorm tvnorms[] = {
525 /* PAL-BDGHI */
526 /* { 864, 720, 625, 576, 131, 21 },*/
527 /*00*/ { 864, 768, 625, 576, 81, 17 },
528 /* NTSC */
529 /*01*/ { 858, 720, 525, 480, 121, 10 },
530 /* SECAM */
531 /*02*/ { 864, 720, 625, 576, 131, 21 },
532 /* BW50 */
533 /*03*/ { 864, 720, 625, 576, 131, 21 },
534 /* BW60 */
535 /*04*/ { 858, 720, 525, 480, 121, 10 }
536 };
537 #define TVNORMS (sizeof(tvnorms)/sizeof(tvnorm))
538
539 /*
540 * Program the chip for a setup as described in the vidinfo struct.
541 *
542 * Side-effects: calculates vidXshift, vidInterlace,
543 * vidHeight, vidWidth which are used in a later stage
544 * to calculate the overlay mask
545 *
546 * This is an internal function, as such it does not check the
547 * validity of the struct members... Spectaculair crashes will
548 * follow /very/ quick when you're wrong and the chip right :)
549 */
550 static
551 void zoran_set_geo(struct zoran* ztv, struct vidinfo* i)
552 {
553 ulong top, bot;
554 int stride;
555 int winWidth, winHeight;
556 int maxWidth, maxHeight, maxXOffset, maxYOffset;
557 long vfec;
558
559 DEBUG(printk(CARD_DEBUG "set_geo(rect=(%d,%d,%d,%d), norm=%d, format=%d, bpp=%d, bpl=%d, busadr=%lx, overlay=%p)\n",CARD,i->x,i->y,i->w,i->h,ztv->norm,i->format,i->bpp,i->bpl,i->busadr,i->overlay));
560
561 /*
562 * make sure the DMA transfers are inhibited during our
563 * reprogramming of the chip
564 */
565 zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
566
567 maxWidth = tvnorms[ztv->norm].Wa;
568 maxHeight = tvnorms[ztv->norm].Ha/2;
569 maxXOffset = tvnorms[ztv->norm].HStart;
570 maxYOffset = tvnorms[ztv->norm].VStart;
571
572 /* setup vfec register (keep ExtFl,TopField and VCLKPol settings) */
573 vfec = (zrread(ZORAN_VFEC) & (ZORAN_VFEC_EXTFL|ZORAN_VFEC_TOPFIELD|ZORAN_VFEC_VCLKPOL)) |
574 (palette2fmt[i->format].mode & (ZORAN_VFEC_RGB|ZORAN_VFEC_ERRDIF|ZORAN_VFEC_LE|ZORAN_VFEC_PACK24));
575
576 /*
577 * Set top, bottom ptrs. Since these must be DWORD aligned,
578 * possible adjust the x and the width of the window.
579 * so the endposition stay the same. The vidXshift will make
580 * sure we are not writing pixels before the requested x.
581 */
582 ztv->vidXshift = 0;
583 winWidth = i->w;
584 if (winWidth < 0)
585 winWidth = -winWidth;
586 top = i->busadr + i->x*i->bpp + i->y*i->bpl;
587 if (top & 3) {
588 ztv->vidXshift = (top & 3) / i->bpp;
589 winWidth += ztv->vidXshift;
590 DEBUG(printk(KERN_DEBUG " window-x shifted %d pixels left\n",ztv->vidXshift));
591 top &= ~3;
592 }
593
594 /*
595 * bottom points to next frame but in interleaved mode we want
596 * to 'mix' the 2 frames to one capture, so 'bot' points to one
597 * (physical) line below the top line.
598 */
599 bot = top + i->bpl;
600 zrwrite(top,ZORAN_VTOP);
601 zrwrite(bot,ZORAN_VBOT);
602
603 /*
604 * Make sure the winWidth is DWORD aligned too,
605 * thereby automaticly making sure the stride to the
606 * next line is DWORD aligned too (as required by spec).
607 */
608 if ((winWidth*i->bpp) & 3) {
609 DEBUG(printk(KERN_DEBUG " window-width enlarged by %d pixels\n",(winWidth*i->bpp) & 3));
610 winWidth += (winWidth*i->bpp) & 3;
611 }
612
613 /* determine the DispMode and stride */
614 if (i->h >= 0 && i->h <= maxHeight) {
615 /* single frame grab suffices for this height. */
616 vfec |= ZORAN_VFEC_DISPMOD;
617 ztv->vidInterlace = 0;
618 stride = i->bpl - (winWidth*i->bpp);
619 winHeight = i->h;
620 }
621 else {
622 /* interleaving needed for this height */
623 ztv->vidInterlace = 1;
624 stride = i->bpl*2 - (winWidth*i->bpp);
625 winHeight = i->h/2;
626 }
627 if (winHeight < 0) /* can happen for VBI! */
628 winHeight = -winHeight;
629
630 /* safety net, sometimes bpl is too short??? */
631 if (stride<0) {
632 DEBUG(printk(CARD_DEBUG "WARNING stride = %d\n",CARD,stride));
633 stride = 0;
634 }
635
636 zraor((winHeight<<12)|(winWidth<<0),~(ZORAN_VDC_VIDWINHT|ZORAN_VDC_VIDWINWID), ZORAN_VDC);
637 zraor(stride<<16,~ZORAN_VSTR_DISPSTRIDE,ZORAN_VSTR);
638
639 /* remember vidWidth, vidHeight for overlay calculations */
640 ztv->vidWidth = winWidth;
641 ztv->vidHeight = winHeight;
642 DEBUG(printk(KERN_DEBUG " top=%08lx, bottom=%08lx\n",top,bot));
643 DEBUG(printk(KERN_DEBUG " winWidth=%d, winHeight=%d\n",winWidth,winHeight));
644 DEBUG(printk(KERN_DEBUG " maxWidth=%d, maxHeight=%d\n",maxWidth,maxHeight));
645 DEBUG(printk(KERN_DEBUG " stride=%d\n",stride));
646
647 /*
648 * determine horizontal scales and crops
649 */
650 if (i->w < 0) {
651 int Hstart = 1;
652 int Hend = Hstart + winWidth;
653 DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Hstart, Hend));
654 zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH);
655 }
656 else {
657 int Wa = maxWidth;
658 int X = (winWidth*64+Wa-1)/Wa;
659 int We = winWidth*64/X;
660 int HorDcm = 64-X;
661 int hcrop1 = 2*(Wa-We)/4;
662 /*
663 * BUGFIX: Juha Nurmela <junki@qn-lpr2-165.quicknet.inet.fi>
664 * found the solution to the color phase shift.
665 * See ChangeLog for the full explanation)
666 */
667 int Hstart = (maxXOffset + hcrop1) | 1;
668 int Hend = Hstart + We - 1;
669
670 DEBUG(printk(KERN_DEBUG " X: scale=%d, start=%d, end=%d\n", HorDcm, Hstart, Hend));
671
672 zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH);
673 vfec |= HorDcm<<14;
674
675 if (HorDcm<16)
676 vfec |= ZORAN_VFEC_HFILTER_1; /* no filter */
677 else if (HorDcm<32)
678 vfec |= ZORAN_VFEC_HFILTER_3; /* 3 tap filter */
679 else if (HorDcm<48)
680 vfec |= ZORAN_VFEC_HFILTER_4; /* 4 tap filter */
681 else vfec |= ZORAN_VFEC_HFILTER_5; /* 5 tap filter */
682 }
683
684 /*
685 * Determine vertical scales and crops
686 *
687 * when height is negative, we want to read starting at line 0
688 * One day someone might need access to these lines...
689 */
690 if (i->h < 0) {
691 int Vstart = 0;
692 int Vend = Vstart + winHeight;
693 DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Vstart, Vend));
694 zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV);
695 }
696 else {
697 int Ha = maxHeight;
698 int Y = (winHeight*64+Ha-1)/Ha;
699 int He = winHeight*64/Y;
700 int VerDcm = 64-Y;
701 int vcrop1 = 2*(Ha-He)/4;
702 int Vstart = maxYOffset + vcrop1;
703 int Vend = Vstart + He - 1;
704
705 DEBUG(printk(KERN_DEBUG " Y: scale=%d, start=%d, end=%d\n", VerDcm, Vstart, Vend));
706 zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV);
707 vfec |= VerDcm<<8;
708 }
709
710 DEBUG(printk(KERN_DEBUG " F: format=%d(=%s)\n",i->format,palette2fmt[i->format].name));
711
712 /* setup the requested format */
713 zrwrite(vfec, ZORAN_VFEC);
714 }
715
716 static
717 void zoran_common_open(struct zoran* ztv, int flags)
718 {
719 UNUSED(flags);
720
721 /* already opened? */
722 if (ztv->users++ != 0)
723 return;
724
725 /* unmute audio */
726 /* /what/ audio? */
727
728 ztv->state = 0;
729
730 /* setup the encoder to the initial values */
731 ztv->picture.colour=254<<7;
732 ztv->picture.brightness=128<<8;
733 ztv->picture.hue=128<<8;
734 ztv->picture.contrast=216<<7;
735 i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &ztv->picture);
736
737 /* default to the composite input since my camera is there */
738 zoran_muxsel(ztv, 0, VIDEO_MODE_PAL);
739 }
740
741 static
742 void zoran_common_close(struct zoran* ztv)
743 {
744 if (--ztv->users != 0)
745 return;
746
747 /* mute audio */
748 /* /what/ audio? */
749
750 /* stop the chip */
751 zoran_cap(ztv, 0);
752 }
753
754 /*
755 * Open a zoran card. Right now the flags are just a hack
756 */
757 static int zoran_open(struct video_device *dev, int flags)
758 {
759 struct zoran *ztv = (struct zoran*)dev;
760 struct vidinfo* item;
761 char* pos;
762
763 DEBUG(printk(CARD_DEBUG "open(dev,%d)\n",CARD,flags));
764
765 /*********************************************
766 * We really should be doing lazy allocing...
767 *********************************************/
768 /* allocate a frame buffer */
769 if (!ztv->fbuffer)
770 ztv->fbuffer = bmalloc(ZORAN_MAX_FBUFSIZE);
771 if (!ztv->fbuffer) {
772 /* could not get a buffer, bail out */
773 return -ENOBUFS;
774 }
775 /* at this time we _always_ have a framebuffer */
776 memset(ztv->fbuffer,0,ZORAN_MAX_FBUFSIZE);
777
778 if (!ztv->overinfo.overlay)
779 ztv->overinfo.overlay = kmalloc(1024*1024/8, GFP_KERNEL);
780 if (!ztv->overinfo.overlay) {
781 /* could not get an overlay buffer, bail out */
782 bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE);
783 return -ENOBUFS;
784 }
785 /* at this time we _always_ have a overlay */
786
787 /* clear buffer status, and give them a DMAable address */
788 pos = ztv->fbuffer;
789 for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
790 {
791 item->status = FBUFFER_FREE;
792 item->memadr = pos;
793 item->busadr = virt_to_bus(pos);
794 pos += ZORAN_MAX_FBUFFER;
795 }
796
797 /* do the common part of all open's */
798 zoran_common_open(ztv, flags);
799
800 return 0;
801 }
802
803 static
804 void zoran_close(struct video_device* dev)
805 {
806 struct zoran *ztv = (struct zoran*)dev;
807
808 DEBUG(printk(CARD_DEBUG "close(dev)\n",CARD));
809
810 /* driver specific closure */
811 clear_bit(STATE_OVERLAY, &ztv->state);
812
813 zoran_common_close(ztv);
814
815 /*
816 * This is sucky but right now I can't find a good way to
817 * be sure its safe to free the buffer. We wait 5-6 fields
818 * which is more than sufficient to be sure.
819 */
820 msleep(100); /* Wait 1/10th of a second */
821
822 /* free the allocated framebuffer */
823 bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE);
824 ztv->fbuffer = 0;
825 kfree(ztv->overinfo.overlay);
826 ztv->overinfo.overlay = 0;
827
828 }
829
830 /*
831 * This read function could be used reentrant in a SMP situation.
832 *
833 * This is made possible by the spinlock which is kept till we
834 * found and marked a buffer for our own use. The lock must
835 * be released as soon as possible to prevent lock contention.
836 */
837 static
838 long zoran_read(struct video_device* dev, char* buf, unsigned long count, int nonblock)
839 {
840 struct zoran *ztv = (struct zoran*)dev;
841 unsigned long max;
842 struct vidinfo* unused = 0;
843 struct vidinfo* done = 0;
844
845 DEBUG(printk(CARD_DEBUG "zoran_read(%p,%ld,%d)\n",CARD,buf,count,nonblock));
846
847 /* find ourself a free or completed buffer */
848 for (;;) {
849 struct vidinfo* item;
850
851 write_lock_irq(&ztv->lock);
852 for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
853 {
854 if (!unused && item->status == FBUFFER_FREE)
855 unused = item;
856 if (!done && item->status == FBUFFER_DONE)
857 done = item;
858 }
859 if (done || unused)
860 break;
861
862 /* no more free buffers, wait for them. */
863 write_unlock_irq(&ztv->lock);
864 if (nonblock)
865 return -EWOULDBLOCK;
866 interruptible_sleep_on(&ztv->grabq);
867 if (signal_pending(current))
868 return -EINTR;
869 }
870
871 /* Do we have 'ready' data? */
872 if (!done) {
873 /* no? than this will take a while... */
874 if (nonblock) {
875 write_unlock_irq(&ztv->lock);
876 return -EWOULDBLOCK;
877 }
878
879 /* mark the unused buffer as wanted */
880 unused->status = FBUFFER_BUSY;
881 unused->w = 320;
882 unused->h = 240;
883 unused->format = VIDEO_PALETTE_RGB24;
884 unused->bpp = palette2fmt[unused->format].bpp;
885 unused->bpl = unused->w * unused->bpp;
886 unused->next = 0;
887 { /* add to tail of queue */
888 struct vidinfo* oldframe = ztv->workqueue;
889 if (!oldframe) ztv->workqueue = unused;
890 else {
891 while (oldframe->next) oldframe = oldframe->next;
892 oldframe->next = unused;
893 }
894 }
895 write_unlock_irq(&ztv->lock);
896
897 /* tell the state machine we want it filled /NOW/ */
898 zoran_cap(ztv, 1);
899
900 /* wait till this buffer gets grabbed */
901 wait_event_interruptible(ztv->grabq,
902 (unused->status != FBUFFER_BUSY));
903 /* see if a signal did it */
904 if (signal_pending(current))
905 return -EINTR;
906 done = unused;
907 }
908 else
909 write_unlock_irq(&ztv->lock);
910
911 /* Yes! we got data! */
912 max = done->bpl * done->h;
913 if (count > max)
914 count = max;
915 if (copy_to_user((void*)buf, done->memadr, count))
916 count = -EFAULT;
917
918 /* keep the engine running */
919 done->status = FBUFFER_FREE;
920 // zoran_cap(ztv,1);
921
922 /* tell listeners this buffer became free */
923 wake_up_interruptible(&ztv->grabq);
924
925 /* goodbye */
926 DEBUG(printk(CARD_DEBUG "zoran_read() returns %lu\n",CARD,count));
927 return count;
928 }
929
930 static
931 long zoran_write(struct video_device* dev, const char* buf, unsigned long count, int nonblock)
932 {
933 struct zoran *ztv = (struct zoran *)dev;
934 UNUSED(ztv); UNUSED(dev); UNUSED(buf); UNUSED(count); UNUSED(nonblock);
935 DEBUG(printk(CARD_DEBUG "zoran_write\n",CARD));
936 return -EINVAL;
937 }
938
939 static
940 unsigned int zoran_poll(struct video_device *dev, struct file *file, poll_table *wait)
941 {
942 struct zoran *ztv = (struct zoran *)dev;
943 struct vidinfo* item;
944 unsigned int mask = 0;
945
946 poll_wait(file, &ztv->grabq, wait);
947
948 for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
949 if (item->status == FBUFFER_DONE)
950 {
951 mask |= (POLLIN | POLLRDNORM);
952 break;
953 }
954
955 DEBUG(printk(CARD_DEBUG "zoran_poll()=%x\n",CARD,mask));
956
957 return mask;
958 }
959
960 /* append a new clipregion to the vector of video_clips */
961 static
962 void new_clip(struct video_window* vw, struct video_clip* vcp, int x, int y, int w, int h)
963 {
964 vcp[vw->clipcount].x = x;
965 vcp[vw->clipcount].y = y;
966 vcp[vw->clipcount].width = w;
967 vcp[vw->clipcount].height = h;
968 vw->clipcount++;
969 }
970
971 static
972 int zoran_ioctl(struct video_device* dev, unsigned int cmd, void *arg)
973 {
974 struct zoran* ztv = (struct zoran*)dev;
975
976 switch (cmd) {
977 case VIDIOCGCAP:
978 {
979 struct video_capability c;
980 DEBUG(printk(CARD_DEBUG "VIDIOCGCAP\n",CARD));
981
982 strcpy(c.name,ztv->video_dev.name);
983 c.type = VID_TYPE_CAPTURE|
984 VID_TYPE_OVERLAY|
985 VID_TYPE_CLIPPING|
986 VID_TYPE_FRAMERAM|
987 VID_TYPE_SCALES;
988 if (ztv->have_tuner)
989 c.type |= VID_TYPE_TUNER;
990 if (pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL))
991 c.type &= ~VID_TYPE_OVERLAY;
992 if (ztv->have_decoder) {
993 c.channels = ztv->card->video_inputs;
994 c.audios = ztv->card->audio_inputs;
995 } else
996 /* no decoder -> no channels */
997 c.channels = c.audios = 0;
998 c.maxwidth = 768;
999 c.maxheight = 576;
1000 c.minwidth = 32;
1001 c.minheight = 32;
1002 if (copy_to_user(arg,&c,sizeof(c)))
1003 return -EFAULT;
1004 break;
1005 }
1006
1007 case VIDIOCGCHAN:
1008 {
1009 struct video_channel v;
1010 int mux;
1011 if (copy_from_user(&v, arg,sizeof(v)))
1012 return -EFAULT;
1013 DEBUG(printk(CARD_DEBUG "VIDIOCGCHAN(%d)\n",CARD,v.channel));
1014 v.flags=VIDEO_VC_AUDIO
1015 #ifdef VIDEO_VC_NORM
1016 |VIDEO_VC_NORM
1017 #endif
1018 ;
1019 v.tuners=0;
1020 v.type=VIDEO_TYPE_CAMERA;
1021 #ifdef I_EXPECT_POSSIBLE_NORMS_IN_THE_API
1022 v.norm=VIDEO_MODE_PAL|
1023 VIDEO_MODE_NTSC|
1024 VIDEO_MODE_SECAM;
1025 #else
1026 v.norm=VIDEO_MODE_PAL;
1027 #endif
1028 /* too many inputs? no decoder -> no channels */
1029 if (!ztv->have_decoder || v.channel < 0 || v.channel >= ztv->card->video_inputs)
1030 return -EINVAL;
1031
1032 /* now determine the name of the channel */
1033 mux = ztv->card->video_mux[v.channel];
1034 if (mux & IS_TUNER) {
1035 /* lets assume only one tuner, yes? */
1036 strcpy(v.name,"Television");
1037 v.type = VIDEO_TYPE_TV;
1038 if (ztv->have_tuner) {
1039 v.flags |= VIDEO_VC_TUNER;
1040 v.tuners = 1;
1041 }
1042 }
1043 else if (mux & IS_SVHS)
1044 sprintf(v.name,"S-Video-%d",v.channel);
1045 else
1046 sprintf(v.name,"CVBS-%d",v.channel);
1047
1048 if (copy_to_user(arg,&v,sizeof(v)))
1049 return -EFAULT;
1050 break;
1051 }
1052 case VIDIOCSCHAN:
1053 { /* set video channel */
1054 struct video_channel v;
1055 if (copy_from_user(&v, arg,sizeof(v)))
1056 return -EFAULT;
1057 DEBUG(printk(CARD_DEBUG "VIDIOCSCHAN(%d,%d)\n",CARD,v.channel,v.norm));
1058
1059 /* too many inputs? no decoder -> no channels */
1060 if (!ztv->have_decoder || v.channel >= ztv->card->video_inputs || v.channel < 0)
1061 return -EINVAL;
1062
1063 if (v.norm != VIDEO_MODE_PAL &&
1064 v.norm != VIDEO_MODE_NTSC &&
1065 v.norm != VIDEO_MODE_SECAM &&
1066 v.norm != VIDEO_MODE_AUTO)
1067 return -EOPNOTSUPP;
1068
1069 /* make it happen, nr1! */
1070 return zoran_muxsel(ztv,v.channel,v.norm);
1071 }
1072
1073 case VIDIOCGTUNER:
1074 {
1075 struct video_tuner v;
1076 if (copy_from_user(&v, arg,sizeof(v)))
1077 return -EFAULT;
1078 DEBUG(printk(CARD_DEBUG "VIDIOCGTUNER(%d)\n",CARD,v.tuner));
1079
1080 /* Only no or one tuner for now */
1081 if (!ztv->have_tuner || v.tuner)
1082 return -EINVAL;
1083
1084 strcpy(v.name,"Television");
1085 v.rangelow = 0;
1086 v.rangehigh = ~0;
1087 v.flags = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
1088 v.mode = ztv->norm;
1089 v.signal = 0xFFFF; /* unknown */
1090
1091 if (copy_to_user(arg,&v,sizeof(v)))
1092 return -EFAULT;
1093 break;
1094 }
1095 case VIDIOCSTUNER:
1096 {
1097 struct video_tuner v;
1098 if (copy_from_user(&v, arg, sizeof(v)))
1099 return -EFAULT;
1100 DEBUG(printk(CARD_DEBUG "VIDIOCSTUNER(%d,%d)\n",CARD,v.tuner,v.mode));
1101
1102 /* Only no or one tuner for now */
1103 if (!ztv->have_tuner || v.tuner)
1104 return -EINVAL;
1105
1106 /* and it only has certain valid modes */
1107 if( v.mode != VIDEO_MODE_PAL &&
1108 v.mode != VIDEO_MODE_NTSC &&
1109 v.mode != VIDEO_MODE_SECAM)
1110 return -EOPNOTSUPP;
1111
1112 /* engage! */
1113 return zoran_muxsel(ztv,v.tuner,v.mode);
1114 }
1115
1116 case VIDIOCGPICT:
1117 {
1118 struct video_picture p = ztv->picture;
1119 DEBUG(printk(CARD_DEBUG "VIDIOCGPICT\n",CARD));
1120 p.depth = ztv->depth;
1121 switch (p.depth) {
1122 case 8: p.palette=VIDEO_PALETTE_YUV422;
1123 break;
1124 case 15: p.palette=VIDEO_PALETTE_RGB555;
1125 break;
1126 case 16: p.palette=VIDEO_PALETTE_RGB565;
1127 break;
1128 case 24: p.palette=VIDEO_PALETTE_RGB24;
1129 break;
1130 case 32: p.palette=VIDEO_PALETTE_RGB32;
1131 break;
1132 }
1133 if (copy_to_user(arg, &p, sizeof(p)))
1134 return -EFAULT;
1135 break;
1136 }
1137 case VIDIOCSPICT:
1138 {
1139 struct video_picture p;
1140 if (copy_from_user(&p, arg,sizeof(p)))
1141 return -EFAULT;
1142 DEBUG(printk(CARD_DEBUG "VIDIOCSPICT(%d,%d,%d,%d,%d,%d,%d)\n",CARD,p.brightness,p.hue,p.colour,p.contrast,p.whiteness,p.depth,p.palette));
1143
1144 /* depth must match with framebuffer */
1145 if (p.depth != ztv->depth)
1146 return -EINVAL;
1147
1148 /* check if palette matches this bpp */
1149 if (p.palette>NRPALETTES ||
1150 palette2fmt[p.palette].bpp != ztv->overinfo.bpp)
1151 return -EINVAL;
1152
1153 write_lock_irq(&ztv->lock);
1154 ztv->overinfo.format = p.palette;
1155 ztv->picture = p;
1156 write_unlock_irq(&ztv->lock);
1157
1158 /* tell the decoder */
1159 i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &p);
1160 break;
1161 }
1162
1163 case VIDIOCGWIN:
1164 {
1165 struct video_window vw;
1166 DEBUG(printk(CARD_DEBUG "VIDIOCGWIN\n",CARD));
1167 read_lock(&ztv->lock);
1168 vw.x = ztv->overinfo.x;
1169 vw.y = ztv->overinfo.y;
1170 vw.width = ztv->overinfo.w;
1171 vw.height = ztv->overinfo.h;
1172 vw.chromakey= 0;
1173 vw.flags = 0;
1174 if (ztv->vidInterlace)
1175 vw.flags|=VIDEO_WINDOW_INTERLACE;
1176 read_unlock(&ztv->lock);
1177 if (copy_to_user(arg,&vw,sizeof(vw)))
1178 return -EFAULT;
1179 break;
1180 }
1181 case VIDIOCSWIN:
1182 {
1183 struct video_window vw;
1184 struct video_clip *vcp;
1185 int on;
1186 if (copy_from_user(&vw,arg,sizeof(vw)))
1187 return -EFAULT;
1188 DEBUG(printk(CARD_DEBUG "VIDIOCSWIN(%d,%d,%d,%d,%x,%d)\n",CARD,vw.x,vw.y,vw.width,vw.height,vw.flags,vw.clipcount));
1189
1190 if (vw.flags)
1191 return -EINVAL;
1192
1193 if (vw.clipcount <0 || vw.clipcount>256)
1194 return -EDOM; /* Too many! */
1195
1196 /*
1197 * Do any clips.
1198 */
1199 vcp = vmalloc(sizeof(struct video_clip)*(vw.clipcount+4));
1200 if (vcp==NULL)
1201 return -ENOMEM;
1202 if (vw.clipcount && copy_from_user(vcp,vw.clips,sizeof(struct video_clip)*vw.clipcount)) {
1203 vfree(vcp);
1204 return -EFAULT;
1205 }
1206
1207 on = ztv->running;
1208 if (on)
1209 zoran_cap(ztv, 0);
1210
1211 /*
1212 * strange, it seems xawtv sometimes calls us with 0
1213 * width and/or height. Ignore these values
1214 */
1215 if (vw.x == 0)
1216 vw.x = ztv->overinfo.x;
1217 if (vw.y == 0)
1218 vw.y = ztv->overinfo.y;
1219
1220 /* by now we are committed to the new data... */
1221 write_lock_irq(&ztv->lock);
1222 ztv->overinfo.x = vw.x;
1223 ztv->overinfo.y = vw.y;
1224 ztv->overinfo.w = vw.width;
1225 ztv->overinfo.h = vw.height;
1226 write_unlock_irq(&ztv->lock);
1227
1228 /*
1229 * Impose display clips
1230 */
1231 if (vw.x+vw.width > ztv->swidth)
1232 new_clip(&vw, vcp, ztv->swidth-vw.x, 0, vw.width-1, vw.height-1);
1233 if (vw.y+vw.height > ztv->sheight)
1234 new_clip(&vw, vcp, 0, ztv->sheight-vw.y, vw.width-1, vw.height-1);
1235
1236 /* built the requested clipping zones */
1237 zoran_set_geo(ztv, &ztv->overinfo);
1238 zoran_built_overlay(ztv, vw.clipcount, vcp);
1239 vfree(vcp);
1240
1241 /* if we were on, restart the video engine */
1242 if (on)
1243 zoran_cap(ztv, 1);
1244 break;
1245 }
1246
1247 case VIDIOCCAPTURE:
1248 {
1249 int v;
1250 if (get_user(v, (int *)arg))
1251 return -EFAULT;
1252 DEBUG(printk(CARD_DEBUG "VIDIOCCAPTURE(%d)\n",CARD,v));
1253
1254 if (v==0) {
1255 clear_bit(STATE_OVERLAY, &ztv->state);
1256 zoran_cap(ztv, 1);
1257 }
1258 else {
1259 /* is VIDIOCSFBUF, VIDIOCSWIN done? */
1260 if (ztv->overinfo.busadr==0 || ztv->overinfo.w==0 || ztv->overinfo.h==0)
1261 return -EINVAL;
1262
1263 set_bit(STATE_OVERLAY, &ztv->state);
1264 zoran_cap(ztv, 1);
1265 }
1266 break;
1267 }
1268
1269 case VIDIOCGFBUF:
1270 {
1271 struct video_buffer v;
1272 DEBUG(printk(CARD_DEBUG "VIDIOCGFBUF\n",CARD));
1273 read_lock(&ztv->lock);
1274 v.base = (void *)ztv->overinfo.busadr;
1275 v.height = ztv->sheight;
1276 v.width = ztv->swidth;
1277 v.depth = ztv->depth;
1278 v.bytesperline = ztv->overinfo.bpl;
1279 read_unlock(&ztv->lock);
1280 if(copy_to_user(arg, &v,sizeof(v)))
1281 return -EFAULT;
1282 break;
1283 }
1284 case VIDIOCSFBUF:
1285 {
1286 struct video_buffer v;
1287 if(!capable(CAP_SYS_ADMIN))
1288 return -EPERM;
1289 if (pcipci_problems & (PCIPCI_FAIL|PCIAGP_FAIL))
1290 return -ENXIO;
1291 if (copy_from_user(&v, arg,sizeof(v)))
1292 return -EFAULT;
1293 DEBUG(printk(CARD_DEBUG "VIDIOCSFBUF(%p,%d,%d,%d,%d)\n",CARD,v.base, v.width,v.height,v.depth,v.bytesperline));
1294
1295 if (v.depth!=15 && v.depth!=16 && v.depth!=24 && v.depth!=32)
1296 return -EINVAL;
1297 if (v.bytesperline<1)
1298 return -EINVAL;
1299 if (ztv->running)
1300 return -EBUSY;
1301 write_lock_irq(&ztv->lock);
1302 ztv->overinfo.busadr = (ulong)v.base;
1303 ztv->sheight = v.height;
1304 ztv->swidth = v.width;
1305 ztv->depth = v.depth; /* bits per pixel */
1306 ztv->overinfo.bpp = ((v.depth+1)&0x38)/8;/* bytes per pixel */
1307 ztv->overinfo.bpl = v.bytesperline; /* bytes per line */
1308 write_unlock_irq(&ztv->lock);
1309 break;
1310 }
1311
1312 case VIDIOCKEY:
1313 {
1314 /* Will be handled higher up .. */
1315 break;
1316 }
1317
1318 case VIDIOCSYNC:
1319 {
1320 int i;
1321 if (get_user(i, (int *) arg))
1322 return -EFAULT;
1323 DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d)\n",CARD,i));
1324 if (i<0 || i>ZORAN_MAX_FBUFFERS)
1325 return -EINVAL;
1326 switch (ztv->grabinfo[i].status) {
1327 case FBUFFER_FREE:
1328 return -EINVAL;
1329 case FBUFFER_BUSY:
1330 /* wait till this buffer gets grabbed */
1331 wait_event_interruptible(ztv->grabq,
1332 (ztv->grabinfo[i].status != FBUFFER_BUSY));
1333 /* see if a signal did it */
1334 if (signal_pending(current))
1335 return -EINTR;
1336 /* don't fall through; a DONE buffer is not UNUSED */
1337 break;
1338 case FBUFFER_DONE:
1339 ztv->grabinfo[i].status = FBUFFER_FREE;
1340 /* tell ppl we have a spare buffer */
1341 wake_up_interruptible(&ztv->grabq);
1342 break;
1343 }
1344 DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d) returns\n",CARD,i));
1345 break;
1346 }
1347
1348 case VIDIOCMCAPTURE:
1349 {
1350 struct video_mmap vm;
1351 struct vidinfo* frame;
1352 if (copy_from_user(&vm,arg,sizeof(vm)))
1353 return -EFAULT;
1354 DEBUG(printk(CARD_DEBUG "VIDIOCMCAPTURE(%d,(%d,%d),%d)\n",CARD,vm.frame,vm.width,vm.height,vm.format));
1355 if (vm.frame<0 || vm.frame>ZORAN_MAX_FBUFFERS ||
1356 vm.width<32 || vm.width>768 ||
1357 vm.height<32 || vm.height>576 ||
1358 vm.format>NRPALETTES ||
1359 palette2fmt[vm.format].mode == 0)
1360 return -EINVAL;
1361
1362 /* we are allowed to take over UNUSED and DONE buffers */
1363 frame = &ztv->grabinfo[vm.frame];
1364 if (frame->status == FBUFFER_BUSY)
1365 return -EBUSY;
1366
1367 /* setup the other parameters if they are given */
1368 write_lock_irq(&ztv->lock);
1369 frame->w = vm.width;
1370 frame->h = vm.height;
1371 frame->format = vm.format;
1372 frame->bpp = palette2fmt[frame->format].bpp;
1373 frame->bpl = frame->w*frame->bpp;
1374 frame->status = FBUFFER_BUSY;
1375 frame->next = 0;
1376 { /* add to tail of queue */
1377 struct vidinfo* oldframe = ztv->workqueue;
1378 if (!oldframe) ztv->workqueue = frame;
1379 else {
1380 while (oldframe->next) oldframe = oldframe->next;
1381 oldframe->next = frame;
1382 }
1383 }
1384 write_unlock_irq(&ztv->lock);
1385 zoran_cap(ztv, 1);
1386 break;
1387 }
1388
1389 case VIDIOCGMBUF:
1390 {
1391 struct video_mbuf mb;
1392 int i;
1393 DEBUG(printk(CARD_DEBUG "VIDIOCGMBUF\n",CARD));
1394 mb.size = ZORAN_MAX_FBUFSIZE;
1395 mb.frames = ZORAN_MAX_FBUFFERS;
1396 for (i=0; i<ZORAN_MAX_FBUFFERS; i++)
1397 mb.offsets[i] = i*ZORAN_MAX_FBUFFER;
1398 if(copy_to_user(arg, &mb,sizeof(mb)))
1399 return -EFAULT;
1400 break;
1401 }
1402
1403 case VIDIOCGUNIT:
1404 {
1405 struct video_unit vu;
1406 DEBUG(printk(CARD_DEBUG "VIDIOCGUNIT\n",CARD));
1407 vu.video = ztv->video_dev.minor;
1408 vu.vbi = ztv->vbi_dev.minor;
1409 vu.radio = VIDEO_NO_UNIT;
1410 vu.audio = VIDEO_NO_UNIT;
1411 vu.teletext = VIDEO_NO_UNIT;
1412 if(copy_to_user(arg, &vu,sizeof(vu)))
1413 return -EFAULT;
1414 break;
1415 }
1416
1417 case VIDIOCGFREQ:
1418 {
1419 unsigned long v = ztv->tuner_freq;
1420 if (copy_to_user(arg,&v,sizeof(v)))
1421 return -EFAULT;
1422 DEBUG(printk(CARD_DEBUG "VIDIOCGFREQ\n",CARD));
1423 break;
1424 }
1425 case VIDIOCSFREQ:
1426 {
1427 unsigned long v;
1428 if (copy_from_user(&v, arg, sizeof(v)))
1429 return -EFAULT;
1430 DEBUG(printk(CARD_DEBUG "VIDIOCSFREQ\n",CARD));
1431
1432 if (ztv->have_tuner) {
1433 int fixme = v;
1434 if (i2c_control_device(&(ztv->i2c), I2C_DRIVERID_TUNER, TUNER_SET_TVFREQ, &fixme) < 0)
1435 return -EAGAIN;
1436 }
1437 ztv->tuner_freq = v;
1438 break;
1439 }
1440
1441 /* Why isn't this in the API?
1442 * And why doesn't it take a buffer number?
1443 case BTTV_FIELDNR:
1444 {
1445 unsigned long v = ztv->lastfieldnr;
1446 if (copy_to_user(arg,&v,sizeof(v)))
1447 return -EFAULT;
1448 DEBUG(printk(CARD_DEBUG "BTTV_FIELDNR\n",CARD));
1449 break;
1450 }
1451 */
1452
1453 default:
1454 return -ENOIOCTLCMD;
1455 }
1456 return 0;
1457 }
1458
1459 static
1460 int zoran_mmap(struct vm_area_struct *vma, struct video_device* dev, const char* adr, unsigned long size)
1461 {
1462 struct zoran* ztv = (struct zoran*)dev;
1463 unsigned long start = (unsigned long)adr;
1464 unsigned long pos;
1465
1466 DEBUG(printk(CARD_DEBUG "zoran_mmap(0x%p,%ld)\n",CARD,adr,size));
1467
1468 /* sanity checks */
1469 if (size > ZORAN_MAX_FBUFSIZE || !ztv->fbuffer)
1470 return -EINVAL;
1471
1472 /* start mapping the whole shabang to user memory */
1473 pos = (unsigned long)ztv->fbuffer;
1474 while (size>0) {
1475 unsigned long pfn = virt_to_phys((void*)pos) >> PAGE_SHIFT;
1476 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
1477 return -EAGAIN;
1478 start += PAGE_SIZE;
1479 pos += PAGE_SIZE;
1480 size -= PAGE_SIZE;
1481 }
1482 return 0;
1483 }
1484
1485 static struct video_device zr36120_template=
1486 {
1487 .owner = THIS_MODULE,
1488 .name = "UNSET",
1489 .type = VID_TYPE_TUNER|VID_TYPE_CAPTURE|VID_TYPE_OVERLAY,
1490 .hardware = VID_HARDWARE_ZR36120,
1491 .open = zoran_open,
1492 .close = zoran_close,
1493 .read = zoran_read,
1494 .write = zoran_write,
1495 .poll = zoran_poll,
1496 .ioctl = zoran_ioctl,
1497 .compat_ioctl = v4l_compat_ioctl32,
1498 .mmap = zoran_mmap,
1499 .minor = -1,
1500 };
1501
1502 static
1503 int vbi_open(struct video_device *dev, int flags)
1504 {
1505 struct zoran *ztv = dev->priv;
1506 struct vidinfo* item;
1507
1508 DEBUG(printk(CARD_DEBUG "vbi_open(dev,%d)\n",CARD,flags));
1509
1510 /*
1511 * During VBI device open, we continiously grab VBI-like
1512 * data in the vbi buffer when we have nothing to do.
1513 * Only when there is an explicit request for VBI data
1514 * (read call) we /force/ a read.
1515 */
1516
1517 /* allocate buffers */
1518 for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
1519 {
1520 item->status = FBUFFER_FREE;
1521
1522 /* alloc */
1523 if (!item->memadr) {
1524 item->memadr = bmalloc(ZORAN_VBI_BUFSIZE);
1525 if (!item->memadr) {
1526 /* could not get a buffer, bail out */
1527 while (item != ztv->readinfo) {
1528 item--;
1529 bfree(item->memadr, ZORAN_VBI_BUFSIZE);
1530 item->memadr = 0;
1531 item->busadr = 0;
1532 }
1533 return -ENOBUFS;
1534 }
1535 }
1536
1537 /* determine the DMAable address */
1538 item->busadr = virt_to_bus(item->memadr);
1539 }
1540
1541 /* do the common part of all open's */
1542 zoran_common_open(ztv, flags);
1543
1544 set_bit(STATE_VBI, &ztv->state);
1545 /* start read-ahead */
1546 zoran_cap(ztv, 1);
1547
1548 return 0;
1549 }
1550
1551 static
1552 void vbi_close(struct video_device *dev)
1553 {
1554 struct zoran *ztv = dev->priv;
1555 struct vidinfo* item;
1556
1557 DEBUG(printk(CARD_DEBUG "vbi_close(dev)\n",CARD));
1558
1559 /* driver specific closure */
1560 clear_bit(STATE_VBI, &ztv->state);
1561
1562 zoran_common_close(ztv);
1563
1564 /*
1565 * This is sucky but right now I can't find a good way to
1566 * be sure its safe to free the buffer. We wait 5-6 fields
1567 * which is more than sufficient to be sure.
1568 */
1569 msleep(100); /* Wait 1/10th of a second */
1570
1571 for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
1572 {
1573 if (item->memadr)
1574 bfree(item->memadr, ZORAN_VBI_BUFSIZE);
1575 item->memadr = 0;
1576 }
1577
1578 }
1579
1580 /*
1581 * This read function could be used reentrant in a SMP situation.
1582 *
1583 * This is made possible by the spinlock which is kept till we
1584 * found and marked a buffer for our own use. The lock must
1585 * be released as soon as possible to prevent lock contention.
1586 */
1587 static
1588 long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonblock)
1589 {
1590 struct zoran *ztv = dev->priv;
1591 unsigned long max;
1592 struct vidinfo* unused = 0;
1593 struct vidinfo* done = 0;
1594
1595 DEBUG(printk(CARD_DEBUG "vbi_read(0x%p,%ld,%d)\n",CARD,buf,count,nonblock));
1596
1597 /* find ourself a free or completed buffer */
1598 for (;;) {
1599 struct vidinfo* item;
1600
1601 write_lock_irq(&ztv->lock);
1602 for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) {
1603 if (!unused && item->status == FBUFFER_FREE)
1604 unused = item;
1605 if (!done && item->status == FBUFFER_DONE)
1606 done = item;
1607 }
1608 if (done || unused)
1609 break;
1610
1611 /* no more free buffers, wait for them. */
1612 write_unlock_irq(&ztv->lock);
1613 if (nonblock)
1614 return -EWOULDBLOCK;
1615 interruptible_sleep_on(&ztv->vbiq);
1616 if (signal_pending(current))
1617 return -EINTR;
1618 }
1619
1620 /* Do we have 'ready' data? */
1621 if (!done) {
1622 /* no? than this will take a while... */
1623 if (nonblock) {
1624 write_unlock_irq(&ztv->lock);
1625 return -EWOULDBLOCK;
1626 }
1627
1628 /* mark the unused buffer as wanted */
1629 unused->status = FBUFFER_BUSY;
1630 unused->next = 0;
1631 { /* add to tail of queue */
1632 struct vidinfo* oldframe = ztv->workqueue;
1633 if (!oldframe) ztv->workqueue = unused;
1634 else {
1635 while (oldframe->next) oldframe = oldframe->next;
1636 oldframe->next = unused;
1637 }
1638 }
1639 write_unlock_irq(&ztv->lock);
1640
1641 /* tell the state machine we want it filled /NOW/ */
1642 zoran_cap(ztv, 1);
1643
1644 /* wait till this buffer gets grabbed */
1645 wait_event_interruptible(ztv->vbiq,
1646 (unused->status != FBUFFER_BUSY));
1647 /* see if a signal did it */
1648 if (signal_pending(current))
1649 return -EINTR;
1650 done = unused;
1651 }
1652 else
1653 write_unlock_irq(&ztv->lock);
1654
1655 /* Yes! we got data! */
1656 max = done->bpl * -done->h;
1657 if (count > max)
1658 count = max;
1659
1660 /* check if the user gave us enough room to write the data */
1661 if (!access_ok(VERIFY_WRITE, buf, count)) {
1662 count = -EFAULT;
1663 goto out;
1664 }
1665
1666 /*
1667 * Now transform/strip the data from YUV to Y-only
1668 * NB. Assume the Y is in the LSB of the YUV data.
1669 */
1670 {
1671 unsigned char* optr = buf;
1672 unsigned char* eptr = buf+count;
1673
1674 /* are we beeing accessed from an old driver? */
1675 if (count == 2*19*2048) {
1676 /*
1677 * Extreme HACK, old VBI programs expect 2048 points
1678 * of data, and we only got 864 orso. Double each
1679 * datapoint and clear the rest of the line.
1680 * This way we have appear to have a
1681 * sample_frequency of 29.5 Mc.
1682 */
1683 int x,y;
1684 unsigned char* iptr = done->memadr+1;
1685 for (y=done->h; optr<eptr && y<0; y++)
1686 {
1687 /* copy to doubled data to userland */
1688 for (x=0; optr+1<eptr && x<-done->w; x++)
1689 {
1690 unsigned char a = iptr[x*2];
1691 __put_user(a, optr++);
1692 __put_user(a, optr++);
1693 }
1694 /* and clear the rest of the line */
1695 for (x*=2; optr<eptr && x<done->bpl; x++)
1696 __put_user(0, optr++);
1697 /* next line */
1698 iptr += done->bpl;
1699 }
1700 }
1701 else {
1702 /*
1703 * Other (probably newer) programs asked
1704 * us what geometry we are using, and are
1705 * reading the correct size.
1706 */
1707 int x,y;
1708 unsigned char* iptr = done->memadr+1;
1709 for (y=done->h; optr<eptr && y<0; y++)
1710 {
1711 /* copy to doubled data to userland */
1712 for (x=0; optr<eptr && x<-done->w; x++)
1713 __put_user(iptr[x*2], optr++);
1714 /* and clear the rest of the line */
1715 for (;optr<eptr && x<done->bpl; x++)
1716 __put_user(0, optr++);
1717 /* next line */
1718 iptr += done->bpl;
1719 }
1720 }
1721
1722 /* API compliance:
1723 * place the framenumber (half fieldnr) in the last long
1724 */
1725 __put_user(done->fieldnr/2, ((ulong*)eptr)[-1]);
1726 }
1727
1728 /* keep the engine running */
1729 done->status = FBUFFER_FREE;
1730 zoran_cap(ztv, 1);
1731
1732 /* tell listeners this buffer just became free */
1733 wake_up_interruptible(&ztv->vbiq);
1734
1735 /* goodbye */
1736 out:
1737 DEBUG(printk(CARD_DEBUG "vbi_read() returns %lu\n",CARD,count));
1738 return count;
1739 }
1740
1741 static
1742 unsigned int vbi_poll(struct video_device *dev, struct file *file, poll_table *wait)
1743 {
1744 struct zoran *ztv = dev->priv;
1745 struct vidinfo* item;
1746 unsigned int mask = 0;
1747
1748 poll_wait(file, &ztv->vbiq, wait);
1749
1750 for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
1751 if (item->status == FBUFFER_DONE)
1752 {
1753 mask |= (POLLIN | POLLRDNORM);
1754 break;
1755 }
1756
1757 DEBUG(printk(CARD_DEBUG "vbi_poll()=%x\n",CARD,mask));
1758
1759 return mask;
1760 }
1761
1762 static
1763 int vbi_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
1764 {
1765 struct zoran* ztv = dev->priv;
1766
1767 switch (cmd) {
1768 case VIDIOCGVBIFMT:
1769 {
1770 struct vbi_format f;
1771 DEBUG(printk(CARD_DEBUG "VIDIOCGVBIINFO\n",CARD));
1772 f.sampling_rate = 14750000UL;
1773 f.samples_per_line = -ztv->readinfo[0].w;
1774 f.sample_format = VIDEO_PALETTE_RAW;
1775 f.start[0] = f.start[1] = ztv->readinfo[0].y;
1776 f.start[1] += 312;
1777 f.count[0] = f.count[1] = -ztv->readinfo[0].h;
1778 f.flags = VBI_INTERLACED;
1779 if (copy_to_user(arg,&f,sizeof(f)))
1780 return -EFAULT;
1781 break;
1782 }
1783 case VIDIOCSVBIFMT:
1784 {
1785 struct vbi_format f;
1786 int i;
1787 if (copy_from_user(&f, arg,sizeof(f)))
1788 return -EFAULT;
1789 DEBUG(printk(CARD_DEBUG "VIDIOCSVBIINFO(%d,%d,%d,%d,%d,%d,%d,%x)\n",CARD,f.sampling_rate,f.samples_per_line,f.sample_format,f.start[0],f.start[1],f.count[0],f.count[1],f.flags));
1790
1791 /* lots of parameters are fixed... (PAL) */
1792 if (f.sampling_rate != 14750000UL ||
1793 f.samples_per_line > 864 ||
1794 f.sample_format != VIDEO_PALETTE_RAW ||
1795 f.start[0] < 0 ||
1796 f.start[0] != f.start[1]-312 ||
1797 f.count[0] != f.count[1] ||
1798 f.start[0]+f.count[0] >= 288 ||
1799 f.flags != VBI_INTERLACED)
1800 return -EINVAL;
1801
1802 write_lock_irq(&ztv->lock);
1803 ztv->readinfo[0].y = f.start[0];
1804 ztv->readinfo[0].w = -f.samples_per_line;
1805 ztv->readinfo[0].h = -f.count[0];
1806 ztv->readinfo[0].bpl = f.samples_per_line*ztv->readinfo[0].bpp;
1807 for (i=1; i<ZORAN_VBI_BUFFERS; i++)
1808 ztv->readinfo[i] = ztv->readinfo[i];
1809 write_unlock_irq(&ztv->lock);
1810 break;
1811 }
1812 default:
1813 return -ENOIOCTLCMD;
1814 }
1815 return 0;
1816 }
1817
1818 static struct video_device vbi_template=
1819 {
1820 .owner = THIS_MODULE,
1821 .name = "UNSET",
1822 .type = VID_TYPE_CAPTURE|VID_TYPE_TELETEXT,
1823 .hardware = VID_HARDWARE_ZR36120,
1824 .open = vbi_open,
1825 .close = vbi_close,
1826 .read = vbi_read,
1827 .write = zoran_write,
1828 .poll = vbi_poll,
1829 .ioctl = vbi_ioctl,
1830 .minor = -1,
1831 };
1832
1833 /*
1834 * Scan for a Zoran chip, request the irq and map the io memory
1835 */
1836 static
1837 int __init find_zoran(void)
1838 {
1839 int result;
1840 struct zoran *ztv;
1841 struct pci_dev *dev = NULL;
1842 unsigned char revision;
1843 int zoran_num = 0;
1844
1845 while ((dev = pci_get_device(PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120, dev)))
1846 {
1847 /* Ok, a ZR36120/ZR36125 found! */
1848 ztv = &zorans[zoran_num];
1849 ztv->dev = dev;
1850
1851 if (pci_enable_device(dev))
1852 continue;
1853
1854 pci_read_config_byte(dev, PCI_CLASS_REVISION, &revision);
1855 printk(KERN_INFO "zoran: Zoran %x (rev %d) ",
1856 dev->device, revision);
1857 printk("bus: %d, devfn: %d, irq: %d, ",
1858 dev->bus->number, dev->devfn, dev->irq);
1859 printk("memory: 0x%08lx.\n", ztv->zoran_adr);
1860
1861 ztv->zoran_mem = ioremap(ztv->zoran_adr, 0x1000);
1862 DEBUG(printk(KERN_DEBUG "zoran: mapped-memory at 0x%p\n",ztv->zoran_mem));
1863
1864 result = request_irq(dev->irq, zoran_irq,
1865 IRQF_SHARED|IRQF_DISABLED,"zoran", ztv);
1866 if (result==-EINVAL)
1867 {
1868 iounmap(ztv->zoran_mem);
1869 printk(KERN_ERR "zoran: Bad irq number or handler\n");
1870 continue;
1871 }
1872 if (result==-EBUSY)
1873 printk(KERN_ERR "zoran: IRQ %d busy, change your PnP config in BIOS\n",dev->irq);
1874 if (result < 0) {
1875 iounmap(ztv->zoran_mem);
1876 continue;
1877 }
1878 /* Enable bus-mastering */
1879 pci_set_master(dev);
1880 /* Keep a reference */
1881 pci_dev_get(dev);
1882 zoran_num++;
1883 }
1884 if(zoran_num)
1885 printk(KERN_INFO "zoran: %d Zoran card(s) found.\n",zoran_num);
1886 return zoran_num;
1887 }
1888
1889 static
1890 int __init init_zoran(int card)
1891 {
1892 struct zoran *ztv = &zorans[card];
1893 int i;
1894
1895 /* if the given cardtype valid? */
1896 if (cardtype[card]>=NRTVCARDS) {
1897 printk(KERN_INFO "invalid cardtype(%d) detected\n",cardtype[card]);
1898 return -1;
1899 }
1900
1901 /* reset the zoran */
1902 zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI);
1903 udelay(10);
1904 zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI);
1905 udelay(10);
1906
1907 /* zoran chip specific details */
1908 ztv->card = tvcards+cardtype[card]; /* point to the selected card */
1909 ztv->norm = 0; /* PAL */
1910 ztv->tuner_freq = 0;
1911
1912 /* videocard details */
1913 ztv->swidth = 800;
1914 ztv->sheight = 600;
1915 ztv->depth = 16;
1916
1917 /* State details */
1918 ztv->fbuffer = 0;
1919 ztv->overinfo.kindof = FBUFFER_OVERLAY;
1920 ztv->overinfo.status = FBUFFER_FREE;
1921 ztv->overinfo.x = 0;
1922 ztv->overinfo.y = 0;
1923 ztv->overinfo.w = 768; /* 640 */
1924 ztv->overinfo.h = 576; /* 480 */
1925 ztv->overinfo.format = VIDEO_PALETTE_RGB565;
1926 ztv->overinfo.bpp = palette2fmt[ztv->overinfo.format].bpp;
1927 ztv->overinfo.bpl = ztv->overinfo.bpp*ztv->swidth;
1928 ztv->overinfo.busadr = 0;
1929 ztv->overinfo.memadr = 0;
1930 ztv->overinfo.overlay = 0;
1931 for (i=0; i<ZORAN_MAX_FBUFFERS; i++) {
1932 ztv->grabinfo[i] = ztv->overinfo;
1933 ztv->grabinfo[i].kindof = FBUFFER_GRAB;
1934 }
1935 init_waitqueue_head(&ztv->grabq);
1936
1937 /* VBI details */
1938 ztv->readinfo[0] = ztv->overinfo;
1939 ztv->readinfo[0].kindof = FBUFFER_VBI;
1940 ztv->readinfo[0].w = -864;
1941 ztv->readinfo[0].h = -38;
1942 ztv->readinfo[0].format = VIDEO_PALETTE_YUV422;
1943 ztv->readinfo[0].bpp = palette2fmt[ztv->readinfo[0].format].bpp;
1944 ztv->readinfo[0].bpl = 1024*ztv->readinfo[0].bpp;
1945 for (i=1; i<ZORAN_VBI_BUFFERS; i++)
1946 ztv->readinfo[i] = ztv->readinfo[0];
1947 init_waitqueue_head(&ztv->vbiq);
1948
1949 /* maintenance data */
1950 ztv->have_decoder = 0;
1951 ztv->have_tuner = 0;
1952 ztv->tuner_type = 0;
1953 ztv->running = 0;
1954 ztv->users = 0;
1955 rwlock_init(&ztv->lock);
1956 ztv->workqueue = 0;
1957 ztv->fieldnr = 0;
1958 ztv->lastfieldnr = 0;
1959
1960 if (triton1)
1961 zrand(~ZORAN_VDC_TRICOM, ZORAN_VDC);
1962
1963 /* external FL determines TOP frame */
1964 zror(ZORAN_VFEC_EXTFL, ZORAN_VFEC);
1965
1966 /* set HSpol */
1967 if (ztv->card->hsync_pos)
1968 zrwrite(ZORAN_VFEH_HSPOL, ZORAN_VFEH);
1969 /* set VSpol */
1970 if (ztv->card->vsync_pos)
1971 zrwrite(ZORAN_VFEV_VSPOL, ZORAN_VFEV);
1972
1973 /* Set the proper General Purpuse register bits */
1974 /* implicit: no softreset, 0 waitstates */
1975 zrwrite(ZORAN_PCI_SOFTRESET|(ztv->card->gpdir<<0),ZORAN_PCI);
1976 /* implicit: 3 duration and recovery PCI clocks on guest 0-3 */
1977 zrwrite(ztv->card->gpval<<24,ZORAN_GUEST);
1978
1979 /* clear interrupt status */
1980 zrwrite(~0, ZORAN_ISR);
1981
1982 /*
1983 * i2c template
1984 */
1985 ztv->i2c = zoran_i2c_bus_template;
1986 sprintf(ztv->i2c.name,"zoran-%d",card);
1987 ztv->i2c.data = ztv;
1988
1989 /*
1990 * Now add the template and register the device unit
1991 */
1992 ztv->video_dev = zr36120_template;
1993 strcpy(ztv->video_dev.name, ztv->i2c.name);
1994 ztv->video_dev.priv = ztv;
1995 if (video_register_device(&ztv->video_dev, VFL_TYPE_GRABBER, video_nr) < 0)
1996 return -1;
1997
1998 ztv->vbi_dev = vbi_template;
1999 strcpy(ztv->vbi_dev.name, ztv->i2c.name);
2000 ztv->vbi_dev.priv = ztv;
2001 if (video_register_device(&ztv->vbi_dev, VFL_TYPE_VBI, vbi_nr) < 0) {
2002 video_unregister_device(&ztv->video_dev);
2003 return -1;
2004 }
2005 i2c_register_bus(&ztv->i2c);
2006
2007 /* set interrupt mask - the PIN enable will be set later */
2008 zrwrite(ZORAN_ICR_GIRQ0|ZORAN_ICR_GIRQ1|ZORAN_ICR_CODE, ZORAN_ICR);
2009
2010 printk(KERN_INFO "%s: installed %s\n",ztv->i2c.name,ztv->card->name);
2011 return 0;
2012 }
2013
2014 static
2015 void release_zoran(int max)
2016 {
2017 struct zoran *ztv;
2018 int i;
2019
2020 for (i=0;i<max; i++)
2021 {
2022 ztv = &zorans[i];
2023
2024 /* turn off all capturing, DMA and IRQs */
2025 /* reset the zoran */
2026 zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI);
2027 udelay(10);
2028 zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI);
2029 udelay(10);
2030
2031 /* first disable interrupts before unmapping the memory! */
2032 zrwrite(0, ZORAN_ICR);
2033 zrwrite(0xffffffffUL,ZORAN_ISR);
2034
2035 /* free it */
2036 free_irq(ztv->dev->irq,ztv);
2037
2038 /* unregister i2c_bus */
2039 i2c_unregister_bus((&ztv->i2c));
2040
2041 /* unmap and free memory */
2042 if (ztv->zoran_mem)
2043 iounmap(ztv->zoran_mem);
2044
2045 /* Drop PCI device */
2046 pci_dev_put(ztv->dev);
2047
2048 video_unregister_device(&ztv->video_dev);
2049 video_unregister_device(&ztv->vbi_dev);
2050 }
2051 }
2052
2053 void __exit zr36120_exit(void)
2054 {
2055 release_zoran(zoran_cards);
2056 }
2057
2058 int __init zr36120_init(void)
2059 {
2060 int card;
2061
2062 handle_chipset();
2063 zoran_cards = find_zoran();
2064 if (zoran_cards <= 0)
2065 return -EIO;
2066
2067 /* initialize Zorans */
2068 for (card=0; card<zoran_cards; card++) {
2069 if (init_zoran(card) < 0) {
2070 /* only release the zorans we have registered */
2071 release_zoran(card);
2072 return -EIO;
2073 }
2074 }
2075 return 0;
2076 }
2077
2078 module_init(zr36120_init);
2079 module_exit(zr36120_exit);
kernel source for telekom puls (alcatel/mediatek)