1 /*
2  * Zoran zr36057/zr36067 PCI controller driver, for the
3  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
4  * Media Labs LML33/LML33R10.
5  *
6  * This part handles card-specific data and detection
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 
26 #include <linux/delay.h>
27 
28 #include <linux/types.h>
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/vmalloc.h>
33 #include <linux/slab.h>
34 
35 #include <linux/proc_fs.h>
36 #include <linux/i2c.h>
37 #include <linux/i2c-algo-bit.h>
38 #include <linux/videodev2.h>
39 #include <linux/spinlock.h>
40 #include <linux/sem.h>
41 #include <linux/kmod.h>
42 #include <linux/wait.h>
43 
44 #include <linux/pci.h>
45 #include <linux/interrupt.h>
46 #include <linux/mutex.h>
47 #include <linux/io.h>
48 #include <media/v4l2-common.h>
49 #include <media/i2c/bt819.h>
50 
51 #include "videocodec.h"
52 #include "zoran.h"
53 #include "zoran_card.h"
54 #include "zoran_device.h"
55 #include "zoran_procfs.h"
56 
57 extern const struct zoran_format zoran_formats[];
58 
59 static int card[BUZ_MAX] = { [0 ... (BUZ_MAX-1)] = -1 };
60 module_param_array(card, int, NULL, 0444);
61 MODULE_PARM_DESC(card, "Card type");
62 
63 /*
64    The video mem address of the video card.
65    The driver has a little database for some videocards
66    to determine it from there. If your video card is not in there
67    you have either to give it to the driver as a parameter
68    or set in in a VIDIOCSFBUF ioctl
69  */
70 
71 static unsigned long vidmem;	/* default = 0 - Video memory base address */
72 module_param_hw(vidmem, ulong, iomem, 0444);
73 MODULE_PARM_DESC(vidmem, "Default video memory base address");
74 
75 /*
76    Default input and video norm at startup of the driver.
77 */
78 
79 static unsigned int default_input;	/* default 0 = Composite, 1 = S-Video */
80 module_param(default_input, uint, 0444);
81 MODULE_PARM_DESC(default_input,
82 		 "Default input (0=Composite, 1=S-Video, 2=Internal)");
83 
84 static int default_mux = 1;	/* 6 Eyes input selection */
85 module_param(default_mux, int, 0644);
86 MODULE_PARM_DESC(default_mux,
87 		 "Default 6 Eyes mux setting (Input selection)");
88 
89 static int default_norm;	/* default 0 = PAL, 1 = NTSC 2 = SECAM */
90 module_param(default_norm, int, 0444);
91 MODULE_PARM_DESC(default_norm, "Default norm (0=PAL, 1=NTSC, 2=SECAM)");
92 
93 /* /dev/videoN, -1 for autodetect */
94 static int video_nr[BUZ_MAX] = { [0 ... (BUZ_MAX-1)] = -1 };
95 module_param_array(video_nr, int, NULL, 0444);
96 MODULE_PARM_DESC(video_nr, "Video device number (-1=Auto)");
97 
98 int v4l_nbufs = 4;
99 int v4l_bufsize = 864;		/* Everybody should be able to work with this setting */
100 module_param(v4l_nbufs, int, 0644);
101 MODULE_PARM_DESC(v4l_nbufs, "Maximum number of V4L buffers to use");
102 module_param(v4l_bufsize, int, 0644);
103 MODULE_PARM_DESC(v4l_bufsize, "Maximum size per V4L buffer (in kB)");
104 
105 int jpg_nbufs = 32;
106 int jpg_bufsize = 512;		/* max size for 100% quality full-PAL frame */
107 module_param(jpg_nbufs, int, 0644);
108 MODULE_PARM_DESC(jpg_nbufs, "Maximum number of JPG buffers to use");
109 module_param(jpg_bufsize, int, 0644);
110 MODULE_PARM_DESC(jpg_bufsize, "Maximum size per JPG buffer (in kB)");
111 
112 int pass_through = 0;		/* 1=Pass through TV signal when device is not used */
113 				/* 0=Show color bar when device is not used (LML33: only if lml33dpath=1) */
114 module_param(pass_through, int, 0644);
115 MODULE_PARM_DESC(pass_through,
116 		 "Pass TV signal through to TV-out when idling");
117 
118 int zr36067_debug = 1;
119 module_param_named(debug, zr36067_debug, int, 0644);
120 MODULE_PARM_DESC(debug, "Debug level (0-5)");
121 
122 #define ZORAN_VERSION "0.10.1"
123 
124 MODULE_DESCRIPTION("Zoran-36057/36067 JPEG codec driver");
125 MODULE_AUTHOR("Serguei Miridonov");
126 MODULE_LICENSE("GPL");
127 MODULE_VERSION(ZORAN_VERSION);
128 
129 #define ZR_DEVICE(subven, subdev, data)	{ \
130 	.vendor = PCI_VENDOR_ID_ZORAN, .device = PCI_DEVICE_ID_ZORAN_36057, \
131 	.subvendor = (subven), .subdevice = (subdev), .driver_data = (data) }
132 
133 static const struct pci_device_id zr36067_pci_tbl[] = {
134 	ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC10PLUS, DC10plus),
135 	ZR_DEVICE(PCI_VENDOR_ID_MIRO, PCI_DEVICE_ID_MIRO_DC30PLUS, DC30plus),
136 	ZR_DEVICE(PCI_VENDOR_ID_ELECTRONICDESIGNGMBH, PCI_DEVICE_ID_LML_33R10, LML33R10),
137 	ZR_DEVICE(PCI_VENDOR_ID_IOMEGA, PCI_DEVICE_ID_IOMEGA_BUZ, BUZ),
138 	ZR_DEVICE(PCI_ANY_ID, PCI_ANY_ID, NUM_CARDS),
139 	{0}
140 };
141 MODULE_DEVICE_TABLE(pci, zr36067_pci_tbl);
142 
143 static unsigned int zoran_num;		/* number of cards found */
144 
145 /* videocodec bus functions ZR36060 */
146 static u32
147 zr36060_read (struct videocodec *codec,
148 	      u16                reg)
149 {
150 	struct zoran *zr = (struct zoran *) codec->master_data->data;
151 	__u32 data;
152 
153 	if (post_office_wait(zr)
154 	    || post_office_write(zr, 0, 1, reg >> 8)
155 	    || post_office_write(zr, 0, 2, reg & 0xff)) {
156 		return -1;
157 	}
158 
159 	data = post_office_read(zr, 0, 3) & 0xff;
160 	return data;
161 }
162 
163 static void
164 zr36060_write (struct videocodec *codec,
165 	       u16                reg,
166 	       u32                val)
167 {
168 	struct zoran *zr = (struct zoran *) codec->master_data->data;
169 
170 	if (post_office_wait(zr)
171 	    || post_office_write(zr, 0, 1, reg >> 8)
172 	    || post_office_write(zr, 0, 2, reg & 0xff)) {
173 		return;
174 	}
175 
176 	post_office_write(zr, 0, 3, val & 0xff);
177 }
178 
179 /* videocodec bus functions ZR36050 */
180 static u32
181 zr36050_read (struct videocodec *codec,
182 	      u16                reg)
183 {
184 	struct zoran *zr = (struct zoran *) codec->master_data->data;
185 	__u32 data;
186 
187 	if (post_office_wait(zr)
188 	    || post_office_write(zr, 1, 0, reg >> 2)) {	// reg. HIGHBYTES
189 		return -1;
190 	}
191 
192 	data = post_office_read(zr, 0, reg & 0x03) & 0xff;	// reg. LOWBYTES + read
193 	return data;
194 }
195 
196 static void
197 zr36050_write (struct videocodec *codec,
198 	       u16                reg,
199 	       u32                val)
200 {
201 	struct zoran *zr = (struct zoran *) codec->master_data->data;
202 
203 	if (post_office_wait(zr)
204 	    || post_office_write(zr, 1, 0, reg >> 2)) {	// reg. HIGHBYTES
205 		return;
206 	}
207 
208 	post_office_write(zr, 0, reg & 0x03, val & 0xff);	// reg. LOWBYTES + wr. data
209 }
210 
211 /* videocodec bus functions ZR36016 */
212 static u32
213 zr36016_read (struct videocodec *codec,
214 	      u16                reg)
215 {
216 	struct zoran *zr = (struct zoran *) codec->master_data->data;
217 	__u32 data;
218 
219 	if (post_office_wait(zr)) {
220 		return -1;
221 	}
222 
223 	data = post_office_read(zr, 2, reg & 0x03) & 0xff;	// read
224 	return data;
225 }
226 
227 /* hack for in zoran_device.c */
228 void
229 zr36016_write (struct videocodec *codec,
230 	       u16                reg,
231 	       u32                val)
232 {
233 	struct zoran *zr = (struct zoran *) codec->master_data->data;
234 
235 	if (post_office_wait(zr)) {
236 		return;
237 	}
238 
239 	post_office_write(zr, 2, reg & 0x03, val & 0x0ff);	// wr. data
240 }
241 
242 /*
243  * Board specific information
244  */
245 
246 static void
247 dc10_init (struct zoran *zr)
248 {
249 	dprintk(3, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
250 
251 	/* Pixel clock selection */
252 	GPIO(zr, 4, 0);
253 	GPIO(zr, 5, 1);
254 	/* Enable the video bus sync signals */
255 	GPIO(zr, 7, 0);
256 }
257 
258 static void
259 dc10plus_init (struct zoran *zr)
260 {
261 	dprintk(3, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
262 }
263 
264 static void
265 buz_init (struct zoran *zr)
266 {
267 	dprintk(3, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
268 
269 	/* some stuff from Iomega */
270 	pci_write_config_dword(zr->pci_dev, 0xfc, 0x90680f15);
271 	pci_write_config_dword(zr->pci_dev, 0x0c, 0x00012020);
272 	pci_write_config_dword(zr->pci_dev, 0xe8, 0xc0200000);
273 }
274 
275 static void
276 lml33_init (struct zoran *zr)
277 {
278 	dprintk(3, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
279 
280 	GPIO(zr, 2, 1);		// Set Composite input/output
281 }
282 
283 static void
284 avs6eyes_init (struct zoran *zr)
285 {
286 	// AverMedia 6-Eyes original driver by Christer Weinigel
287 
288 	// Lifted straight from Christer's old driver and
289 	// modified slightly by Martin Samuelsson.
290 
291 	int mux = default_mux; /* 1 = BT866, 7 = VID1 */
292 
293 	GPIO(zr, 4, 1); /* Bt866 SLEEP on */
294 	udelay(2);
295 
296 	GPIO(zr, 0, 1); /* ZR36060 /RESET on */
297 	GPIO(zr, 1, 0); /* ZR36060 /SLEEP on */
298 	GPIO(zr, 2, mux & 1);   /* MUX S0 */
299 	GPIO(zr, 3, 0); /* /FRAME on */
300 	GPIO(zr, 4, 0); /* Bt866 SLEEP off */
301 	GPIO(zr, 5, mux & 2);   /* MUX S1 */
302 	GPIO(zr, 6, 0); /* ? */
303 	GPIO(zr, 7, mux & 4);   /* MUX S2 */
304 
305 }
306 
307 static char *
308 codecid_to_modulename (u16 codecid)
309 {
310 	char *name = NULL;
311 
312 	switch (codecid) {
313 	case CODEC_TYPE_ZR36060:
314 		name = "zr36060";
315 		break;
316 	case CODEC_TYPE_ZR36050:
317 		name = "zr36050";
318 		break;
319 	case CODEC_TYPE_ZR36016:
320 		name = "zr36016";
321 		break;
322 	}
323 
324 	return name;
325 }
326 
327 // struct tvnorm {
328 //      u16 Wt, Wa, HStart, HSyncStart, Ht, Ha, VStart;
329 // };
330 
331 static struct tvnorm f50sqpixel = { 944, 768, 83, 880, 625, 576, 16 };
332 static struct tvnorm f60sqpixel = { 780, 640, 51, 716, 525, 480, 12 };
333 static struct tvnorm f50ccir601 = { 864, 720, 75, 804, 625, 576, 18 };
334 static struct tvnorm f60ccir601 = { 858, 720, 57, 788, 525, 480, 16 };
335 
336 static struct tvnorm f50ccir601_lml33 = { 864, 720, 75+34, 804, 625, 576, 18 };
337 static struct tvnorm f60ccir601_lml33 = { 858, 720, 57+34, 788, 525, 480, 16 };
338 
339 /* The DC10 (57/16/50) uses VActive as HSync, so HStart must be 0 */
340 static struct tvnorm f50sqpixel_dc10 = { 944, 768, 0, 880, 625, 576, 0 };
341 static struct tvnorm f60sqpixel_dc10 = { 780, 640, 0, 716, 525, 480, 12 };
342 
343 /* FIXME: I cannot swap U and V in saa7114, so i do one
344  * pixel left shift in zoran (75 -> 74)
345  * (Maxim Yevtyushkin <max@linuxmedialabs.com>) */
346 static struct tvnorm f50ccir601_lm33r10 = { 864, 720, 74+54, 804, 625, 576, 18 };
347 static struct tvnorm f60ccir601_lm33r10 = { 858, 720, 56+54, 788, 525, 480, 16 };
348 
349 /* FIXME: The ks0127 seem incapable of swapping U and V, too, which is why I
350  * copy Maxim's left shift hack for the 6 Eyes.
351  *
352  * Christer's driver used the unshifted norms, though...
353  * /Sam  */
354 static struct tvnorm f50ccir601_avs6eyes = { 864, 720, 74, 804, 625, 576, 18 };
355 static struct tvnorm f60ccir601_avs6eyes = { 858, 720, 56, 788, 525, 480, 16 };
356 
357 static const unsigned short vpx3220_addrs[] = { 0x43, 0x47, I2C_CLIENT_END };
358 static const unsigned short saa7110_addrs[] = { 0x4e, 0x4f, I2C_CLIENT_END };
359 static const unsigned short saa7111_addrs[] = { 0x25, 0x24, I2C_CLIENT_END };
360 static const unsigned short saa7114_addrs[] = { 0x21, 0x20, I2C_CLIENT_END };
361 static const unsigned short adv717x_addrs[] = { 0x6a, 0x6b, 0x2a, 0x2b, I2C_CLIENT_END };
362 static const unsigned short ks0127_addrs[] = { 0x6c, 0x6d, I2C_CLIENT_END };
363 static const unsigned short saa7185_addrs[] = { 0x44, I2C_CLIENT_END };
364 static const unsigned short bt819_addrs[] = { 0x45, I2C_CLIENT_END };
365 static const unsigned short bt856_addrs[] = { 0x44, I2C_CLIENT_END };
366 static const unsigned short bt866_addrs[] = { 0x44, I2C_CLIENT_END };
367 
368 static struct card_info zoran_cards[NUM_CARDS] = {
369 	{
370 		.type = DC10_old,
371 		.name = "DC10(old)",
372 		.i2c_decoder = "vpx3220a",
373 		.addrs_decoder = vpx3220_addrs,
374 		.video_codec = CODEC_TYPE_ZR36050,
375 		.video_vfe = CODEC_TYPE_ZR36016,
376 
377 		.inputs = 3,
378 		.input = {
379 			{ 1, "Composite" },
380 			{ 2, "S-Video" },
381 			{ 0, "Internal/comp" }
382 		},
383 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
384 		.tvn = {
385 			&f50sqpixel_dc10,
386 			&f60sqpixel_dc10,
387 			&f50sqpixel_dc10
388 		},
389 		.jpeg_int = 0,
390 		.vsync_int = ZR36057_ISR_GIRQ1,
391 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
392 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
393 		.gpcs = { -1, 0 },
394 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
395 		.gws_not_connected = 0,
396 		.input_mux = 0,
397 		.init = &dc10_init,
398 	}, {
399 		.type = DC10_new,
400 		.name = "DC10(new)",
401 		.i2c_decoder = "saa7110",
402 		.addrs_decoder = saa7110_addrs,
403 		.i2c_encoder = "adv7175",
404 		.addrs_encoder = adv717x_addrs,
405 		.video_codec = CODEC_TYPE_ZR36060,
406 
407 		.inputs = 3,
408 		.input = {
409 				{ 0, "Composite" },
410 				{ 7, "S-Video" },
411 				{ 5, "Internal/comp" }
412 			},
413 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
414 		.tvn = {
415 				&f50sqpixel,
416 				&f60sqpixel,
417 				&f50sqpixel},
418 		.jpeg_int = ZR36057_ISR_GIRQ0,
419 		.vsync_int = ZR36057_ISR_GIRQ1,
420 		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
421 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
422 		.gpcs = { -1, 1},
423 		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
424 		.gws_not_connected = 0,
425 		.input_mux = 0,
426 		.init = &dc10plus_init,
427 	}, {
428 		.type = DC10plus,
429 		.name = "DC10plus",
430 		.i2c_decoder = "saa7110",
431 		.addrs_decoder = saa7110_addrs,
432 		.i2c_encoder = "adv7175",
433 		.addrs_encoder = adv717x_addrs,
434 		.video_codec = CODEC_TYPE_ZR36060,
435 
436 		.inputs = 3,
437 		.input = {
438 			{ 0, "Composite" },
439 			{ 7, "S-Video" },
440 			{ 5, "Internal/comp" }
441 		},
442 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
443 		.tvn = {
444 			&f50sqpixel,
445 			&f60sqpixel,
446 			&f50sqpixel
447 		},
448 		.jpeg_int = ZR36057_ISR_GIRQ0,
449 		.vsync_int = ZR36057_ISR_GIRQ1,
450 		.gpio = { 3, 0, 6, 1, 2, -1, 4, 5 },
451 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
452 		.gpcs = { -1, 1 },
453 		.vfe_pol = { 1, 1, 1, 1, 0, 0, 0, 0 },
454 		.gws_not_connected = 0,
455 		.input_mux = 0,
456 		.init = &dc10plus_init,
457 	}, {
458 		.type = DC30,
459 		.name = "DC30",
460 		.i2c_decoder = "vpx3220a",
461 		.addrs_decoder = vpx3220_addrs,
462 		.i2c_encoder = "adv7175",
463 		.addrs_encoder = adv717x_addrs,
464 		.video_codec = CODEC_TYPE_ZR36050,
465 		.video_vfe = CODEC_TYPE_ZR36016,
466 
467 		.inputs = 3,
468 		.input = {
469 			{ 1, "Composite" },
470 			{ 2, "S-Video" },
471 			{ 0, "Internal/comp" }
472 		},
473 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
474 		.tvn = {
475 			&f50sqpixel_dc10,
476 			&f60sqpixel_dc10,
477 			&f50sqpixel_dc10
478 		},
479 		.jpeg_int = 0,
480 		.vsync_int = ZR36057_ISR_GIRQ1,
481 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
482 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
483 		.gpcs = { -1, 0 },
484 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
485 		.gws_not_connected = 0,
486 		.input_mux = 0,
487 		.init = &dc10_init,
488 	}, {
489 		.type = DC30plus,
490 		.name = "DC30plus",
491 		.i2c_decoder = "vpx3220a",
492 		.addrs_decoder = vpx3220_addrs,
493 		.i2c_encoder = "adv7175",
494 		.addrs_encoder = adv717x_addrs,
495 		.video_codec = CODEC_TYPE_ZR36050,
496 		.video_vfe = CODEC_TYPE_ZR36016,
497 
498 		.inputs = 3,
499 		.input = {
500 			{ 1, "Composite" },
501 			{ 2, "S-Video" },
502 			{ 0, "Internal/comp" }
503 		},
504 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
505 		.tvn = {
506 			&f50sqpixel_dc10,
507 			&f60sqpixel_dc10,
508 			&f50sqpixel_dc10
509 		},
510 		.jpeg_int = 0,
511 		.vsync_int = ZR36057_ISR_GIRQ1,
512 		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
513 		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
514 		.gpcs = { -1, 0 },
515 		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
516 		.gws_not_connected = 0,
517 		.input_mux = 0,
518 		.init = &dc10_init,
519 	}, {
520 		.type = LML33,
521 		.name = "LML33",
522 		.i2c_decoder = "bt819a",
523 		.addrs_decoder = bt819_addrs,
524 		.i2c_encoder = "bt856",
525 		.addrs_encoder = bt856_addrs,
526 		.video_codec = CODEC_TYPE_ZR36060,
527 
528 		.inputs = 2,
529 		.input = {
530 			{ 0, "Composite" },
531 			{ 7, "S-Video" }
532 		},
533 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL,
534 		.tvn = {
535 			&f50ccir601_lml33,
536 			&f60ccir601_lml33,
537 			NULL
538 		},
539 		.jpeg_int = ZR36057_ISR_GIRQ1,
540 		.vsync_int = ZR36057_ISR_GIRQ0,
541 		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
542 		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
543 		.gpcs = { 3, 1 },
544 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
545 		.gws_not_connected = 1,
546 		.input_mux = 0,
547 		.init = &lml33_init,
548 	}, {
549 		.type = LML33R10,
550 		.name = "LML33R10",
551 		.i2c_decoder = "saa7114",
552 		.addrs_decoder = saa7114_addrs,
553 		.i2c_encoder = "adv7170",
554 		.addrs_encoder = adv717x_addrs,
555 		.video_codec = CODEC_TYPE_ZR36060,
556 
557 		.inputs = 2,
558 		.input = {
559 			{ 0, "Composite" },
560 			{ 7, "S-Video" }
561 		},
562 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL,
563 		.tvn = {
564 			&f50ccir601_lm33r10,
565 			&f60ccir601_lm33r10,
566 			NULL
567 		},
568 		.jpeg_int = ZR36057_ISR_GIRQ1,
569 		.vsync_int = ZR36057_ISR_GIRQ0,
570 		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
571 		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
572 		.gpcs = { 3, 1 },
573 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
574 		.gws_not_connected = 1,
575 		.input_mux = 0,
576 		.init = &lml33_init,
577 	}, {
578 		.type = BUZ,
579 		.name = "Buz",
580 		.i2c_decoder = "saa7111",
581 		.addrs_decoder = saa7111_addrs,
582 		.i2c_encoder = "saa7185",
583 		.addrs_encoder = saa7185_addrs,
584 		.video_codec = CODEC_TYPE_ZR36060,
585 
586 		.inputs = 2,
587 		.input = {
588 			{ 3, "Composite" },
589 			{ 7, "S-Video" }
590 		},
591 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL|V4L2_STD_SECAM,
592 		.tvn = {
593 			&f50ccir601,
594 			&f60ccir601,
595 			&f50ccir601
596 		},
597 		.jpeg_int = ZR36057_ISR_GIRQ1,
598 		.vsync_int = ZR36057_ISR_GIRQ0,
599 		.gpio = { 1, -1, 3, -1, -1, -1, -1, -1 },
600 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
601 		.gpcs = { 3, 1 },
602 		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
603 		.gws_not_connected = 1,
604 		.input_mux = 0,
605 		.init = &buz_init,
606 	}, {
607 		.type = AVS6EYES,
608 		.name = "6-Eyes",
609 		/* AverMedia chose not to brand the 6-Eyes. Thus it
610 		   can't be autodetected, and requires card=x. */
611 		.i2c_decoder = "ks0127",
612 		.addrs_decoder = ks0127_addrs,
613 		.i2c_encoder = "bt866",
614 		.addrs_encoder = bt866_addrs,
615 		.video_codec = CODEC_TYPE_ZR36060,
616 
617 		.inputs = 10,
618 		.input = {
619 			{ 0, "Composite 1" },
620 			{ 1, "Composite 2" },
621 			{ 2, "Composite 3" },
622 			{ 4, "Composite 4" },
623 			{ 5, "Composite 5" },
624 			{ 6, "Composite 6" },
625 			{ 8, "S-Video 1" },
626 			{ 9, "S-Video 2" },
627 			{10, "S-Video 3" },
628 			{15, "YCbCr" }
629 		},
630 		.norms = V4L2_STD_NTSC|V4L2_STD_PAL,
631 		.tvn = {
632 			&f50ccir601_avs6eyes,
633 			&f60ccir601_avs6eyes,
634 			NULL
635 		},
636 		.jpeg_int = ZR36057_ISR_GIRQ1,
637 		.vsync_int = ZR36057_ISR_GIRQ0,
638 		.gpio = { 1, 0, 3, -1, -1, -1, -1, -1 },// Validity unknown /Sam
639 		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 }, // Validity unknown /Sam
640 		.gpcs = { 3, 1 },			// Validity unknown /Sam
641 		.vfe_pol = { 1, 0, 0, 0, 0, 1, 0, 0 },  // Validity unknown /Sam
642 		.gws_not_connected = 1,
643 		.input_mux = 1,
644 		.init = &avs6eyes_init,
645 	}
646 
647 };
648 
649 /*
650  * I2C functions
651  */
652 /* software I2C functions */
653 static int
654 zoran_i2c_getsda (void *data)
655 {
656 	struct zoran *zr = (struct zoran *) data;
657 
658 	return (btread(ZR36057_I2CBR) >> 1) & 1;
659 }
660 
661 static int
662 zoran_i2c_getscl (void *data)
663 {
664 	struct zoran *zr = (struct zoran *) data;
665 
666 	return btread(ZR36057_I2CBR) & 1;
667 }
668 
669 static void
670 zoran_i2c_setsda (void *data,
671 		  int   state)
672 {
673 	struct zoran *zr = (struct zoran *) data;
674 
675 	if (state)
676 		zr->i2cbr |= 2;
677 	else
678 		zr->i2cbr &= ~2;
679 	btwrite(zr->i2cbr, ZR36057_I2CBR);
680 }
681 
682 static void
683 zoran_i2c_setscl (void *data,
684 		  int   state)
685 {
686 	struct zoran *zr = (struct zoran *) data;
687 
688 	if (state)
689 		zr->i2cbr |= 1;
690 	else
691 		zr->i2cbr &= ~1;
692 	btwrite(zr->i2cbr, ZR36057_I2CBR);
693 }
694 
695 static const struct i2c_algo_bit_data zoran_i2c_bit_data_template = {
696 	.setsda = zoran_i2c_setsda,
697 	.setscl = zoran_i2c_setscl,
698 	.getsda = zoran_i2c_getsda,
699 	.getscl = zoran_i2c_getscl,
700 	.udelay = 10,
701 	.timeout = 100,
702 };
703 
704 static int
705 zoran_register_i2c (struct zoran *zr)
706 {
707 	zr->i2c_algo = zoran_i2c_bit_data_template;
708 	zr->i2c_algo.data = zr;
709 	strlcpy(zr->i2c_adapter.name, ZR_DEVNAME(zr),
710 		sizeof(zr->i2c_adapter.name));
711 	i2c_set_adapdata(&zr->i2c_adapter, &zr->v4l2_dev);
712 	zr->i2c_adapter.algo_data = &zr->i2c_algo;
713 	zr->i2c_adapter.dev.parent = &zr->pci_dev->dev;
714 	return i2c_bit_add_bus(&zr->i2c_adapter);
715 }
716 
717 static void
718 zoran_unregister_i2c (struct zoran *zr)
719 {
720 	i2c_del_adapter(&zr->i2c_adapter);
721 }
722 
723 /* Check a zoran_params struct for correctness, insert default params */
724 
725 int
726 zoran_check_jpg_settings (struct zoran              *zr,
727 			  struct zoran_jpg_settings *settings,
728 			  int try)
729 {
730 	int err = 0, err0 = 0;
731 
732 	dprintk(4,
733 		KERN_DEBUG
734 		"%s: %s - dec: %d, Hdcm: %d, Vdcm: %d, Tdcm: %d\n",
735 		ZR_DEVNAME(zr), __func__, settings->decimation, settings->HorDcm,
736 		settings->VerDcm, settings->TmpDcm);
737 	dprintk(4,
738 		KERN_DEBUG
739 		"%s: %s - x: %d, y: %d, w: %d, y: %d\n",
740 		ZR_DEVNAME(zr), __func__, settings->img_x, settings->img_y,
741 		settings->img_width, settings->img_height);
742 	/* Check decimation, set default values for decimation = 1, 2, 4 */
743 	switch (settings->decimation) {
744 	case 1:
745 
746 		settings->HorDcm = 1;
747 		settings->VerDcm = 1;
748 		settings->TmpDcm = 1;
749 		settings->field_per_buff = 2;
750 		settings->img_x = 0;
751 		settings->img_y = 0;
752 		settings->img_width = BUZ_MAX_WIDTH;
753 		settings->img_height = BUZ_MAX_HEIGHT / 2;
754 		break;
755 	case 2:
756 
757 		settings->HorDcm = 2;
758 		settings->VerDcm = 1;
759 		settings->TmpDcm = 2;
760 		settings->field_per_buff = 1;
761 		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
762 		settings->img_y = 0;
763 		settings->img_width =
764 		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
765 		settings->img_height = BUZ_MAX_HEIGHT / 2;
766 		break;
767 	case 4:
768 
769 		if (zr->card.type == DC10_new) {
770 			dprintk(1,
771 				KERN_DEBUG
772 				"%s: %s - HDec by 4 is not supported on the DC10\n",
773 				ZR_DEVNAME(zr), __func__);
774 			err0++;
775 			break;
776 		}
777 
778 		settings->HorDcm = 4;
779 		settings->VerDcm = 2;
780 		settings->TmpDcm = 2;
781 		settings->field_per_buff = 1;
782 		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
783 		settings->img_y = 0;
784 		settings->img_width =
785 		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
786 		settings->img_height = BUZ_MAX_HEIGHT / 2;
787 		break;
788 	case 0:
789 
790 		/* We have to check the data the user has set */
791 
792 		if (settings->HorDcm != 1 && settings->HorDcm != 2 &&
793 		    (zr->card.type == DC10_new || settings->HorDcm != 4)) {
794 			settings->HorDcm = clamp(settings->HorDcm, 1, 2);
795 			err0++;
796 		}
797 		if (settings->VerDcm != 1 && settings->VerDcm != 2) {
798 			settings->VerDcm = clamp(settings->VerDcm, 1, 2);
799 			err0++;
800 		}
801 		if (settings->TmpDcm != 1 && settings->TmpDcm != 2) {
802 			settings->TmpDcm = clamp(settings->TmpDcm, 1, 2);
803 			err0++;
804 		}
805 		if (settings->field_per_buff != 1 &&
806 		    settings->field_per_buff != 2) {
807 			settings->field_per_buff = clamp(settings->field_per_buff, 1, 2);
808 			err0++;
809 		}
810 		if (settings->img_x < 0) {
811 			settings->img_x = 0;
812 			err0++;
813 		}
814 		if (settings->img_y < 0) {
815 			settings->img_y = 0;
816 			err0++;
817 		}
818 		if (settings->img_width < 0 || settings->img_width > BUZ_MAX_WIDTH) {
819 			settings->img_width = clamp(settings->img_width, 0, (int)BUZ_MAX_WIDTH);
820 			err0++;
821 		}
822 		if (settings->img_height < 0 || settings->img_height > BUZ_MAX_HEIGHT / 2) {
823 			settings->img_height = clamp(settings->img_height, 0, BUZ_MAX_HEIGHT / 2);
824 			err0++;
825 		}
826 		if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH) {
827 			settings->img_x = BUZ_MAX_WIDTH - settings->img_width;
828 			err0++;
829 		}
830 		if (settings->img_y + settings->img_height > BUZ_MAX_HEIGHT / 2) {
831 			settings->img_y = BUZ_MAX_HEIGHT / 2 - settings->img_height;
832 			err0++;
833 		}
834 		if (settings->img_width % (16 * settings->HorDcm) != 0) {
835 			settings->img_width -= settings->img_width % (16 * settings->HorDcm);
836 			if (settings->img_width == 0)
837 				settings->img_width = 16 * settings->HorDcm;
838 			err0++;
839 		}
840 		if (settings->img_height % (8 * settings->VerDcm) != 0) {
841 			settings->img_height -= settings->img_height % (8 * settings->VerDcm);
842 			if (settings->img_height == 0)
843 				settings->img_height = 8 * settings->VerDcm;
844 			err0++;
845 		}
846 
847 		if (!try && err0) {
848 			dprintk(1,
849 				KERN_ERR
850 				"%s: %s - error in params for decimation = 0\n",
851 				ZR_DEVNAME(zr), __func__);
852 			err++;
853 		}
854 		break;
855 	default:
856 		dprintk(1,
857 			KERN_ERR
858 			"%s: %s - decimation = %d, must be 0, 1, 2 or 4\n",
859 			ZR_DEVNAME(zr), __func__, settings->decimation);
860 		err++;
861 		break;
862 	}
863 
864 	if (settings->jpg_comp.quality > 100)
865 		settings->jpg_comp.quality = 100;
866 	if (settings->jpg_comp.quality < 5)
867 		settings->jpg_comp.quality = 5;
868 	if (settings->jpg_comp.APPn < 0)
869 		settings->jpg_comp.APPn = 0;
870 	if (settings->jpg_comp.APPn > 15)
871 		settings->jpg_comp.APPn = 15;
872 	if (settings->jpg_comp.APP_len < 0)
873 		settings->jpg_comp.APP_len = 0;
874 	if (settings->jpg_comp.APP_len > 60)
875 		settings->jpg_comp.APP_len = 60;
876 	if (settings->jpg_comp.COM_len < 0)
877 		settings->jpg_comp.COM_len = 0;
878 	if (settings->jpg_comp.COM_len > 60)
879 		settings->jpg_comp.COM_len = 60;
880 	if (err)
881 		return -EINVAL;
882 	return 0;
883 }
884 
885 void
886 zoran_open_init_params (struct zoran *zr)
887 {
888 	int i;
889 
890 	/* User must explicitly set a window */
891 	zr->overlay_settings.is_set = 0;
892 	zr->overlay_mask = NULL;
893 	zr->overlay_active = ZORAN_FREE;
894 
895 	zr->v4l_memgrab_active = 0;
896 	zr->v4l_overlay_active = 0;
897 	zr->v4l_grab_frame = NO_GRAB_ACTIVE;
898 	zr->v4l_grab_seq = 0;
899 	zr->v4l_settings.width = 192;
900 	zr->v4l_settings.height = 144;
901 	zr->v4l_settings.format = &zoran_formats[7];	/* YUY2 - YUV-4:2:2 packed */
902 	zr->v4l_settings.bytesperline =
903 	    zr->v4l_settings.width *
904 	    ((zr->v4l_settings.format->depth + 7) / 8);
905 
906 	/* DMA ring stuff for V4L */
907 	zr->v4l_pend_tail = 0;
908 	zr->v4l_pend_head = 0;
909 	zr->v4l_sync_tail = 0;
910 	zr->v4l_buffers.active = ZORAN_FREE;
911 	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
912 		zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
913 	}
914 	zr->v4l_buffers.allocated = 0;
915 
916 	for (i = 0; i < BUZ_MAX_FRAME; i++) {
917 		zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
918 	}
919 	zr->jpg_buffers.active = ZORAN_FREE;
920 	zr->jpg_buffers.allocated = 0;
921 	/* Set necessary params and call zoran_check_jpg_settings to set the defaults */
922 	zr->jpg_settings.decimation = 1;
923 	zr->jpg_settings.jpg_comp.quality = 50;	/* default compression factor 8 */
924 	if (zr->card.type != BUZ)
925 		zr->jpg_settings.odd_even = 1;
926 	else
927 		zr->jpg_settings.odd_even = 0;
928 	zr->jpg_settings.jpg_comp.APPn = 0;
929 	zr->jpg_settings.jpg_comp.APP_len = 0;	/* No APPn marker */
930 	memset(zr->jpg_settings.jpg_comp.APP_data, 0,
931 	       sizeof(zr->jpg_settings.jpg_comp.APP_data));
932 	zr->jpg_settings.jpg_comp.COM_len = 0;	/* No COM marker */
933 	memset(zr->jpg_settings.jpg_comp.COM_data, 0,
934 	       sizeof(zr->jpg_settings.jpg_comp.COM_data));
935 	zr->jpg_settings.jpg_comp.jpeg_markers =
936 	    V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT;
937 	i = zoran_check_jpg_settings(zr, &zr->jpg_settings, 0);
938 	if (i)
939 		dprintk(1, KERN_ERR "%s: %s internal error\n",
940 			ZR_DEVNAME(zr), __func__);
941 
942 	clear_interrupt_counters(zr);
943 	zr->testing = 0;
944 }
945 
946 static void test_interrupts (struct zoran *zr)
947 {
948 	DEFINE_WAIT(wait);
949 	int timeout, icr;
950 
951 	clear_interrupt_counters(zr);
952 
953 	zr->testing = 1;
954 	icr = btread(ZR36057_ICR);
955 	btwrite(0x78000000 | ZR36057_ICR_IntPinEn, ZR36057_ICR);
956 	prepare_to_wait(&zr->test_q, &wait, TASK_INTERRUPTIBLE);
957 	timeout = schedule_timeout(HZ);
958 	finish_wait(&zr->test_q, &wait);
959 	btwrite(0, ZR36057_ICR);
960 	btwrite(0x78000000, ZR36057_ISR);
961 	zr->testing = 0;
962 	dprintk(5, KERN_INFO "%s: Testing interrupts...\n", ZR_DEVNAME(zr));
963 	if (timeout) {
964 		dprintk(1, ": time spent: %d\n", 1 * HZ - timeout);
965 	}
966 	if (zr36067_debug > 1)
967 		print_interrupts(zr);
968 	btwrite(icr, ZR36057_ICR);
969 }
970 
971 static int zr36057_init (struct zoran *zr)
972 {
973 	int j, err;
974 
975 	dprintk(1,
976 		KERN_INFO
977 		"%s: %s - initializing card[%d], zr=%p\n",
978 		ZR_DEVNAME(zr), __func__, zr->id, zr);
979 
980 	/* default setup of all parameters which will persist between opens */
981 	zr->user = 0;
982 
983 	init_waitqueue_head(&zr->v4l_capq);
984 	init_waitqueue_head(&zr->jpg_capq);
985 	init_waitqueue_head(&zr->test_q);
986 	zr->jpg_buffers.allocated = 0;
987 	zr->v4l_buffers.allocated = 0;
988 
989 	zr->vbuf_base = (void *) vidmem;
990 	zr->vbuf_width = 0;
991 	zr->vbuf_height = 0;
992 	zr->vbuf_depth = 0;
993 	zr->vbuf_bytesperline = 0;
994 
995 	/* Avoid nonsense settings from user for default input/norm */
996 	if (default_norm < 0 || default_norm > 2)
997 		default_norm = 0;
998 	if (default_norm == 0) {
999 		zr->norm = V4L2_STD_PAL;
1000 		zr->timing = zr->card.tvn[0];
1001 	} else if (default_norm == 1) {
1002 		zr->norm = V4L2_STD_NTSC;
1003 		zr->timing = zr->card.tvn[1];
1004 	} else {
1005 		zr->norm = V4L2_STD_SECAM;
1006 		zr->timing = zr->card.tvn[2];
1007 	}
1008 	if (zr->timing == NULL) {
1009 		dprintk(1,
1010 			KERN_WARNING
1011 			"%s: %s - default TV standard not supported by hardware. PAL will be used.\n",
1012 			ZR_DEVNAME(zr), __func__);
1013 		zr->norm = V4L2_STD_PAL;
1014 		zr->timing = zr->card.tvn[0];
1015 	}
1016 
1017 	if (default_input > zr->card.inputs-1) {
1018 		dprintk(1,
1019 			KERN_WARNING
1020 			"%s: default_input value %d out of range (0-%d)\n",
1021 			ZR_DEVNAME(zr), default_input, zr->card.inputs-1);
1022 		default_input = 0;
1023 	}
1024 	zr->input = default_input;
1025 
1026 	/* default setup (will be repeated at every open) */
1027 	zoran_open_init_params(zr);
1028 
1029 	/* allocate memory *before* doing anything to the hardware
1030 	 * in case allocation fails */
1031 	zr->stat_com = kzalloc(BUZ_NUM_STAT_COM * 4, GFP_KERNEL);
1032 	zr->video_dev = video_device_alloc();
1033 	if (!zr->stat_com || !zr->video_dev) {
1034 		dprintk(1,
1035 			KERN_ERR
1036 			"%s: %s - kmalloc (STAT_COM) failed\n",
1037 			ZR_DEVNAME(zr), __func__);
1038 		err = -ENOMEM;
1039 		goto exit_free;
1040 	}
1041 	for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
1042 		zr->stat_com[j] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
1043 	}
1044 
1045 	/*
1046 	 *   Now add the template and register the device unit.
1047 	 */
1048 	*zr->video_dev = zoran_template;
1049 	zr->video_dev->v4l2_dev = &zr->v4l2_dev;
1050 	zr->video_dev->lock = &zr->lock;
1051 	strcpy(zr->video_dev->name, ZR_DEVNAME(zr));
1052 	/* It's not a mem2mem device, but you can both capture and output from
1053 	   one and the same device. This should really be split up into two
1054 	   device nodes, but that's a job for another day. */
1055 	zr->video_dev->vfl_dir = VFL_DIR_M2M;
1056 	err = video_register_device(zr->video_dev, VFL_TYPE_GRABBER, video_nr[zr->id]);
1057 	if (err < 0)
1058 		goto exit_free;
1059 	video_set_drvdata(zr->video_dev, zr);
1060 
1061 	zoran_init_hardware(zr);
1062 	if (zr36067_debug > 2)
1063 		detect_guest_activity(zr);
1064 	test_interrupts(zr);
1065 	if (!pass_through) {
1066 		decoder_call(zr, video, s_stream, 0);
1067 		encoder_call(zr, video, s_routing, 2, 0, 0);
1068 	}
1069 
1070 	zr->zoran_proc = NULL;
1071 	zr->initialized = 1;
1072 	return 0;
1073 
1074 exit_free:
1075 	kfree(zr->stat_com);
1076 	kfree(zr->video_dev);
1077 	return err;
1078 }
1079 
1080 static void zoran_remove(struct pci_dev *pdev)
1081 {
1082 	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
1083 	struct zoran *zr = to_zoran(v4l2_dev);
1084 
1085 	if (!zr->initialized)
1086 		goto exit_free;
1087 
1088 	/* unregister videocodec bus */
1089 	if (zr->codec) {
1090 		struct videocodec_master *master = zr->codec->master_data;
1091 
1092 		videocodec_detach(zr->codec);
1093 		kfree(master);
1094 	}
1095 	if (zr->vfe) {
1096 		struct videocodec_master *master = zr->vfe->master_data;
1097 
1098 		videocodec_detach(zr->vfe);
1099 		kfree(master);
1100 	}
1101 
1102 	/* unregister i2c bus */
1103 	zoran_unregister_i2c(zr);
1104 	/* disable PCI bus-mastering */
1105 	zoran_set_pci_master(zr, 0);
1106 	/* put chip into reset */
1107 	btwrite(0, ZR36057_SPGPPCR);
1108 	free_irq(zr->pci_dev->irq, zr);
1109 	/* unmap and free memory */
1110 	kfree(zr->stat_com);
1111 	zoran_proc_cleanup(zr);
1112 	iounmap(zr->zr36057_mem);
1113 	pci_disable_device(zr->pci_dev);
1114 	video_unregister_device(zr->video_dev);
1115 exit_free:
1116 	v4l2_ctrl_handler_free(&zr->hdl);
1117 	v4l2_device_unregister(&zr->v4l2_dev);
1118 	kfree(zr);
1119 }
1120 
1121 void
1122 zoran_vdev_release (struct video_device *vdev)
1123 {
1124 	kfree(vdev);
1125 }
1126 
1127 static struct videocodec_master *zoran_setup_videocodec(struct zoran *zr,
1128 							int type)
1129 {
1130 	struct videocodec_master *m = NULL;
1131 
1132 	m = kmalloc(sizeof(struct videocodec_master), GFP_KERNEL);
1133 	if (!m) {
1134 		dprintk(1, KERN_ERR "%s: %s - no memory\n",
1135 			ZR_DEVNAME(zr), __func__);
1136 		return m;
1137 	}
1138 
1139 	/* magic and type are unused for master struct. Makes sense only at
1140 	   codec structs.
1141 	   In the past, .type were initialized to the old V4L1 .hardware
1142 	   value, as VID_HARDWARE_ZR36067
1143 	 */
1144 	m->magic = 0L;
1145 	m->type = 0;
1146 
1147 	m->flags = CODEC_FLAG_ENCODER | CODEC_FLAG_DECODER;
1148 	strlcpy(m->name, ZR_DEVNAME(zr), sizeof(m->name));
1149 	m->data = zr;
1150 
1151 	switch (type)
1152 	{
1153 	case CODEC_TYPE_ZR36060:
1154 		m->readreg = zr36060_read;
1155 		m->writereg = zr36060_write;
1156 		m->flags |= CODEC_FLAG_JPEG | CODEC_FLAG_VFE;
1157 		break;
1158 	case CODEC_TYPE_ZR36050:
1159 		m->readreg = zr36050_read;
1160 		m->writereg = zr36050_write;
1161 		m->flags |= CODEC_FLAG_JPEG;
1162 		break;
1163 	case CODEC_TYPE_ZR36016:
1164 		m->readreg = zr36016_read;
1165 		m->writereg = zr36016_write;
1166 		m->flags |= CODEC_FLAG_VFE;
1167 		break;
1168 	}
1169 
1170 	return m;
1171 }
1172 
1173 static void zoran_subdev_notify(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1174 {
1175 	struct zoran *zr = to_zoran(sd->v4l2_dev);
1176 
1177 	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
1178 	   LML33 card uses GPIO(7) for that. */
1179 	if (cmd == BT819_FIFO_RESET_LOW)
1180 		GPIO(zr, 7, 0);
1181 	else if (cmd == BT819_FIFO_RESET_HIGH)
1182 		GPIO(zr, 7, 1);
1183 }
1184 
1185 /*
1186  *   Scan for a Buz card (actually for the PCI controller ZR36057),
1187  *   request the irq and map the io memory
1188  */
1189 static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1190 {
1191 	unsigned char latency, need_latency;
1192 	struct zoran *zr;
1193 	int result;
1194 	struct videocodec_master *master_vfe = NULL;
1195 	struct videocodec_master *master_codec = NULL;
1196 	int card_num;
1197 	char *codec_name, *vfe_name;
1198 	unsigned int nr;
1199 
1200 
1201 	nr = zoran_num++;
1202 	if (nr >= BUZ_MAX) {
1203 		dprintk(1, KERN_ERR "%s: driver limited to %d card(s) maximum\n",
1204 			ZORAN_NAME, BUZ_MAX);
1205 		return -ENOENT;
1206 	}
1207 
1208 	zr = kzalloc(sizeof(struct zoran), GFP_KERNEL);
1209 	if (!zr) {
1210 		dprintk(1, KERN_ERR "%s: %s - kzalloc failed\n",
1211 			ZORAN_NAME, __func__);
1212 		return -ENOMEM;
1213 	}
1214 	zr->v4l2_dev.notify = zoran_subdev_notify;
1215 	if (v4l2_device_register(&pdev->dev, &zr->v4l2_dev))
1216 		goto zr_free_mem;
1217 	zr->pci_dev = pdev;
1218 	zr->id = nr;
1219 	snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
1220 	if (v4l2_ctrl_handler_init(&zr->hdl, 10))
1221 		goto zr_unreg;
1222 	zr->v4l2_dev.ctrl_handler = &zr->hdl;
1223 	spin_lock_init(&zr->spinlock);
1224 	mutex_init(&zr->lock);
1225 	if (pci_enable_device(pdev))
1226 		goto zr_unreg;
1227 	zr->revision = zr->pci_dev->revision;
1228 
1229 	dprintk(1,
1230 		KERN_INFO
1231 		"%s: Zoran ZR360%c7 (rev %d), irq: %d, memory: 0x%08llx\n",
1232 		ZR_DEVNAME(zr), zr->revision < 2 ? '5' : '6', zr->revision,
1233 		zr->pci_dev->irq, (uint64_t)pci_resource_start(zr->pci_dev, 0));
1234 	if (zr->revision >= 2) {
1235 		dprintk(1,
1236 			KERN_INFO
1237 			"%s: Subsystem vendor=0x%04x id=0x%04x\n",
1238 			ZR_DEVNAME(zr), zr->pci_dev->subsystem_vendor,
1239 			zr->pci_dev->subsystem_device);
1240 	}
1241 
1242 	/* Use auto-detected card type? */
1243 	if (card[nr] == -1) {
1244 		if (zr->revision < 2) {
1245 			dprintk(1,
1246 				KERN_ERR
1247 				"%s: No card type specified, please use the card=X module parameter\n",
1248 				ZR_DEVNAME(zr));
1249 			dprintk(1,
1250 				KERN_ERR
1251 				"%s: It is not possible to auto-detect ZR36057 based cards\n",
1252 				ZR_DEVNAME(zr));
1253 			goto zr_unreg;
1254 		}
1255 
1256 		card_num = ent->driver_data;
1257 		if (card_num >= NUM_CARDS) {
1258 			dprintk(1,
1259 				KERN_ERR
1260 				"%s: Unknown card, try specifying card=X module parameter\n",
1261 				ZR_DEVNAME(zr));
1262 			goto zr_unreg;
1263 		}
1264 		dprintk(3,
1265 			KERN_DEBUG
1266 			"%s: %s() - card %s detected\n",
1267 			ZR_DEVNAME(zr), __func__, zoran_cards[card_num].name);
1268 	} else {
1269 		card_num = card[nr];
1270 		if (card_num >= NUM_CARDS || card_num < 0) {
1271 			dprintk(1,
1272 				KERN_ERR
1273 				"%s: User specified card type %d out of range (0 .. %d)\n",
1274 				ZR_DEVNAME(zr), card_num, NUM_CARDS - 1);
1275 			goto zr_unreg;
1276 		}
1277 	}
1278 
1279 	/* even though we make this a non pointer and thus
1280 	 * theoretically allow for making changes to this struct
1281 	 * on a per-individual card basis at runtime, this is
1282 	 * strongly discouraged. This structure is intended to
1283 	 * keep general card information, no settings or anything */
1284 	zr->card = zoran_cards[card_num];
1285 	snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)),
1286 		 "%s[%u]", zr->card.name, zr->id);
1287 
1288 	zr->zr36057_mem = pci_ioremap_bar(zr->pci_dev, 0);
1289 	if (!zr->zr36057_mem) {
1290 		dprintk(1, KERN_ERR "%s: %s() - ioremap failed\n",
1291 			ZR_DEVNAME(zr), __func__);
1292 		goto zr_unreg;
1293 	}
1294 
1295 	result = request_irq(zr->pci_dev->irq, zoran_irq,
1296 			     IRQF_SHARED, ZR_DEVNAME(zr), zr);
1297 	if (result < 0) {
1298 		if (result == -EINVAL) {
1299 			dprintk(1,
1300 				KERN_ERR
1301 				"%s: %s - bad irq number or handler\n",
1302 				ZR_DEVNAME(zr), __func__);
1303 		} else if (result == -EBUSY) {
1304 			dprintk(1,
1305 				KERN_ERR
1306 				"%s: %s - IRQ %d busy, change your PnP config in BIOS\n",
1307 				ZR_DEVNAME(zr), __func__, zr->pci_dev->irq);
1308 		} else {
1309 			dprintk(1,
1310 				KERN_ERR
1311 				"%s: %s - can't assign irq, error code %d\n",
1312 				ZR_DEVNAME(zr), __func__, result);
1313 		}
1314 		goto zr_unmap;
1315 	}
1316 
1317 	/* set PCI latency timer */
1318 	pci_read_config_byte(zr->pci_dev, PCI_LATENCY_TIMER,
1319 			     &latency);
1320 	need_latency = zr->revision > 1 ? 32 : 48;
1321 	if (latency != need_latency) {
1322 		dprintk(2, KERN_INFO "%s: Changing PCI latency from %d to %d\n",
1323 			ZR_DEVNAME(zr), latency, need_latency);
1324 		pci_write_config_byte(zr->pci_dev, PCI_LATENCY_TIMER,
1325 				      need_latency);
1326 	}
1327 
1328 	zr36057_restart(zr);
1329 	/* i2c */
1330 	dprintk(2, KERN_INFO "%s: Initializing i2c bus...\n",
1331 		ZR_DEVNAME(zr));
1332 
1333 	if (zoran_register_i2c(zr) < 0) {
1334 		dprintk(1, KERN_ERR "%s: %s - can't initialize i2c bus\n",
1335 			ZR_DEVNAME(zr), __func__);
1336 		goto zr_free_irq;
1337 	}
1338 
1339 	zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
1340 		&zr->i2c_adapter, zr->card.i2c_decoder,
1341 		0, zr->card.addrs_decoder);
1342 
1343 	if (zr->card.i2c_encoder)
1344 		zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
1345 			&zr->i2c_adapter, zr->card.i2c_encoder,
1346 			0, zr->card.addrs_encoder);
1347 
1348 	dprintk(2,
1349 		KERN_INFO "%s: Initializing videocodec bus...\n",
1350 		ZR_DEVNAME(zr));
1351 
1352 	if (zr->card.video_codec) {
1353 		codec_name = codecid_to_modulename(zr->card.video_codec);
1354 		if (codec_name) {
1355 			result = request_module(codec_name);
1356 			if (result) {
1357 				dprintk(1,
1358 					KERN_ERR
1359 					"%s: failed to load modules %s: %d\n",
1360 					ZR_DEVNAME(zr), codec_name, result);
1361 			}
1362 		}
1363 	}
1364 	if (zr->card.video_vfe) {
1365 		vfe_name = codecid_to_modulename(zr->card.video_vfe);
1366 		if (vfe_name) {
1367 			result = request_module(vfe_name);
1368 			if (result < 0) {
1369 				dprintk(1,
1370 					KERN_ERR
1371 					"%s: failed to load modules %s: %d\n",
1372 					ZR_DEVNAME(zr), vfe_name, result);
1373 			}
1374 		}
1375 	}
1376 
1377 	/* reset JPEG codec */
1378 	jpeg_codec_sleep(zr, 1);
1379 	jpeg_codec_reset(zr);
1380 	/* video bus enabled */
1381 	/* display codec revision */
1382 	if (zr->card.video_codec != 0) {
1383 		master_codec = zoran_setup_videocodec(zr, zr->card.video_codec);
1384 		if (!master_codec)
1385 			goto zr_unreg_i2c;
1386 		zr->codec = videocodec_attach(master_codec);
1387 		if (!zr->codec) {
1388 			dprintk(1, KERN_ERR "%s: %s - no codec found\n",
1389 				ZR_DEVNAME(zr), __func__);
1390 			goto zr_free_codec;
1391 		}
1392 		if (zr->codec->type != zr->card.video_codec) {
1393 			dprintk(1, KERN_ERR "%s: %s - wrong codec\n",
1394 				ZR_DEVNAME(zr), __func__);
1395 			goto zr_detach_codec;
1396 		}
1397 	}
1398 	if (zr->card.video_vfe != 0) {
1399 		master_vfe = zoran_setup_videocodec(zr, zr->card.video_vfe);
1400 		if (!master_vfe)
1401 			goto zr_detach_codec;
1402 		zr->vfe = videocodec_attach(master_vfe);
1403 		if (!zr->vfe) {
1404 			dprintk(1, KERN_ERR "%s: %s - no VFE found\n",
1405 				ZR_DEVNAME(zr), __func__);
1406 			goto zr_free_vfe;
1407 		}
1408 		if (zr->vfe->type != zr->card.video_vfe) {
1409 			dprintk(1, KERN_ERR "%s: %s = wrong VFE\n",
1410 				ZR_DEVNAME(zr), __func__);
1411 			goto zr_detach_vfe;
1412 		}
1413 	}
1414 
1415 	/* take care of Natoma chipset and a revision 1 zr36057 */
1416 	if ((pci_pci_problems & PCIPCI_NATOMA) && zr->revision <= 1) {
1417 		zr->jpg_buffers.need_contiguous = 1;
1418 		dprintk(1, KERN_INFO
1419 			"%s: ZR36057/Natoma bug, max. buffer size is 128K\n",
1420 			ZR_DEVNAME(zr));
1421 	}
1422 
1423 	if (zr36057_init(zr) < 0)
1424 		goto zr_detach_vfe;
1425 
1426 	zoran_proc_init(zr);
1427 
1428 	return 0;
1429 
1430 zr_detach_vfe:
1431 	videocodec_detach(zr->vfe);
1432 zr_free_vfe:
1433 	kfree(master_vfe);
1434 zr_detach_codec:
1435 	videocodec_detach(zr->codec);
1436 zr_free_codec:
1437 	kfree(master_codec);
1438 zr_unreg_i2c:
1439 	zoran_unregister_i2c(zr);
1440 zr_free_irq:
1441 	btwrite(0, ZR36057_SPGPPCR);
1442 	free_irq(zr->pci_dev->irq, zr);
1443 zr_unmap:
1444 	iounmap(zr->zr36057_mem);
1445 zr_unreg:
1446 	v4l2_ctrl_handler_free(&zr->hdl);
1447 	v4l2_device_unregister(&zr->v4l2_dev);
1448 zr_free_mem:
1449 	kfree(zr);
1450 
1451 	return -ENODEV;
1452 }
1453 
1454 static struct pci_driver zoran_driver = {
1455 	.name = "zr36067",
1456 	.id_table = zr36067_pci_tbl,
1457 	.probe = zoran_probe,
1458 	.remove = zoran_remove,
1459 };
1460 
1461 static int __init zoran_init(void)
1462 {
1463 	int res;
1464 
1465 	printk(KERN_INFO "Zoran MJPEG board driver version %s\n",
1466 	       ZORAN_VERSION);
1467 
1468 	/* check the parameters we have been given, adjust if necessary */
1469 	if (v4l_nbufs < 2)
1470 		v4l_nbufs = 2;
1471 	if (v4l_nbufs > VIDEO_MAX_FRAME)
1472 		v4l_nbufs = VIDEO_MAX_FRAME;
1473 	/* The user specfies the in KB, we want them in byte
1474 	 * (and page aligned) */
1475 	v4l_bufsize = PAGE_ALIGN(v4l_bufsize * 1024);
1476 	if (v4l_bufsize < 32768)
1477 		v4l_bufsize = 32768;
1478 	/* 2 MB is arbitrary but sufficient for the maximum possible images */
1479 	if (v4l_bufsize > 2048 * 1024)
1480 		v4l_bufsize = 2048 * 1024;
1481 	if (jpg_nbufs < 4)
1482 		jpg_nbufs = 4;
1483 	if (jpg_nbufs > BUZ_MAX_FRAME)
1484 		jpg_nbufs = BUZ_MAX_FRAME;
1485 	jpg_bufsize = PAGE_ALIGN(jpg_bufsize * 1024);
1486 	if (jpg_bufsize < 8192)
1487 		jpg_bufsize = 8192;
1488 	if (jpg_bufsize > (512 * 1024))
1489 		jpg_bufsize = 512 * 1024;
1490 	/* Use parameter for vidmem or try to find a video card */
1491 	if (vidmem) {
1492 		dprintk(1,
1493 			KERN_INFO
1494 			"%s: Using supplied video memory base address @ 0x%lx\n",
1495 			ZORAN_NAME, vidmem);
1496 	}
1497 
1498 	/* some mainboards might not do PCI-PCI data transfer well */
1499 	if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL|PCIPCI_ALIMAGIK)) {
1500 		dprintk(1,
1501 			KERN_WARNING
1502 			"%s: chipset does not support reliable PCI-PCI DMA\n",
1503 			ZORAN_NAME);
1504 	}
1505 
1506 	res = pci_register_driver(&zoran_driver);
1507 	if (res) {
1508 		dprintk(1,
1509 			KERN_ERR
1510 			"%s: Unable to register ZR36057 driver\n",
1511 			ZORAN_NAME);
1512 		return res;
1513 	}
1514 
1515 	return 0;
1516 }
1517 
1518 static void __exit zoran_exit(void)
1519 {
1520 	pci_unregister_driver(&zoran_driver);
1521 }
1522 
1523 module_init(zoran_init);
1524 module_exit(zoran_exit);
1525