1 /*
2     ivtv driver initialization and card probing
3     Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
4     Copyright (C) 2004  Chris Kennedy <c@groovy.org>
5     Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
6 
7     This program is free software; you can redistribute it and/or modify
8     it under the terms of the GNU General Public License as published by
9     the Free Software Foundation; either version 2 of the License, or
10     (at your option) any later version.
11 
12     This program is distributed in the hope that it will be useful,
13     but WITHOUT ANY WARRANTY; without even the implied warranty of
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15     GNU General Public License for more details.
16 
17     You should have received a copy of the GNU General Public License
18     along with this program; if not, write to the Free Software
19     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21 
22 /* Main Driver file for the ivtv project:
23  * Driver for the Conexant CX23415/CX23416 chip.
24  * Author: Kevin Thayer (nufan_wfk at yahoo.com)
25  * License: GPL
26  * http://www.ivtvdriver.org
27  *
28  * -----
29  * MPG600/MPG160 support by  T.Adachi <tadachi@tadachi-net.com>
30  *                      and Takeru KOMORIYA<komoriya@paken.org>
31  *
32  * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
33  *                using information provided by Jiun-Kuei Jung @ AVerMedia.
34  *
35  * Kurouto Sikou CX23416GYC-STVLP tested by K.Ohta <alpha292@bremen.or.jp>
36  *                using information from T.Adachi,Takeru KOMORIYA and others :-)
37  *
38  * Nagase TRANSGEAR 5000TV, Aopen VA2000MAX-STN6 and I/O data GV-MVP/RX
39  *                version by T.Adachi. Special thanks  Mr.Suzuki
40  */
41 
42 #include "ivtv-driver.h"
43 #include "ivtv-version.h"
44 #include "ivtv-fileops.h"
45 #include "ivtv-i2c.h"
46 #include "ivtv-firmware.h"
47 #include "ivtv-queue.h"
48 #include "ivtv-udma.h"
49 #include "ivtv-irq.h"
50 #include "ivtv-mailbox.h"
51 #include "ivtv-streams.h"
52 #include "ivtv-ioctl.h"
53 #include "ivtv-cards.h"
54 #include "ivtv-vbi.h"
55 #include "ivtv-routing.h"
56 #include "ivtv-controls.h"
57 #include "ivtv-gpio.h"
58 #include <linux/dma-mapping.h>
59 #include <media/tveeprom.h>
60 #include <media/i2c/saa7115.h>
61 #include "tuner-xc2028.h"
62 #include <uapi/linux/sched/types.h>
63 
64 /* If you have already X v4l cards, then set this to X. This way
65    the device numbers stay matched. Example: you have a WinTV card
66    without radio and a PVR-350 with. Normally this would give a
67    video1 device together with a radio0 device for the PVR. By
68    setting this to 1 you ensure that radio0 is now also radio1. */
69 int ivtv_first_minor;
70 
71 /* Callback for registering extensions */
72 int (*ivtv_ext_init)(struct ivtv *);
73 EXPORT_SYMBOL(ivtv_ext_init);
74 
75 /* add your revision and whatnot here */
76 static const struct pci_device_id ivtv_pci_tbl[] = {
77 	{PCI_VENDOR_ID_ICOMP, PCI_DEVICE_ID_IVTV15,
78 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
79 	{PCI_VENDOR_ID_ICOMP, PCI_DEVICE_ID_IVTV16,
80 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
81 	{0,}
82 };
83 
84 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
85 
86 /* ivtv instance counter */
87 static atomic_t ivtv_instance = ATOMIC_INIT(0);
88 
89 /* Parameter declarations */
90 static int cardtype[IVTV_MAX_CARDS];
91 static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
92 				     -1, -1, -1, -1, -1, -1, -1, -1,
93 				     -1, -1, -1, -1, -1, -1, -1, -1,
94 				     -1, -1, -1, -1, -1, -1, -1, -1 };
95 static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
96 				     -1, -1, -1, -1, -1, -1, -1, -1,
97 				     -1, -1, -1, -1, -1, -1, -1, -1,
98 				     -1, -1, -1, -1, -1, -1, -1, -1 };
99 static int i2c_clock_period[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
100 					       -1, -1, -1, -1, -1, -1, -1, -1,
101 					       -1, -1, -1, -1, -1, -1, -1, -1,
102 					       -1, -1, -1, -1, -1, -1, -1, -1 };
103 
104 static unsigned int cardtype_c = 1;
105 static unsigned int tuner_c = 1;
106 static int radio_c = 1;
107 static unsigned int i2c_clock_period_c = 1;
108 static char pal[] = "---";
109 static char secam[] = "--";
110 static char ntsc[] = "-";
111 
112 /* Buffers */
113 
114 /* DMA Buffers, Default size in MB allocated */
115 #define IVTV_DEFAULT_ENC_MPG_BUFFERS 4
116 #define IVTV_DEFAULT_ENC_YUV_BUFFERS 2
117 #define IVTV_DEFAULT_ENC_VBI_BUFFERS 1
118 /* Exception: size in kB for this stream (MB is overkill) */
119 #define IVTV_DEFAULT_ENC_PCM_BUFFERS 320
120 #define IVTV_DEFAULT_DEC_MPG_BUFFERS 1
121 #define IVTV_DEFAULT_DEC_YUV_BUFFERS 1
122 /* Exception: size in kB for this stream (MB is way overkill) */
123 #define IVTV_DEFAULT_DEC_VBI_BUFFERS 64
124 
125 static int enc_mpg_buffers = IVTV_DEFAULT_ENC_MPG_BUFFERS;
126 static int enc_yuv_buffers = IVTV_DEFAULT_ENC_YUV_BUFFERS;
127 static int enc_vbi_buffers = IVTV_DEFAULT_ENC_VBI_BUFFERS;
128 static int enc_pcm_buffers = IVTV_DEFAULT_ENC_PCM_BUFFERS;
129 static int dec_mpg_buffers = IVTV_DEFAULT_DEC_MPG_BUFFERS;
130 static int dec_yuv_buffers = IVTV_DEFAULT_DEC_YUV_BUFFERS;
131 static int dec_vbi_buffers = IVTV_DEFAULT_DEC_VBI_BUFFERS;
132 
133 static int ivtv_yuv_mode;
134 static int ivtv_yuv_threshold = -1;
135 static int ivtv_pci_latency = 1;
136 
137 int ivtv_debug;
138 #ifdef CONFIG_VIDEO_ADV_DEBUG
139 int ivtv_fw_debug;
140 #endif
141 
142 static int tunertype = -1;
143 static int newi2c = -1;
144 
145 module_param_array(tuner, int, &tuner_c, 0644);
146 module_param_array(radio, int, &radio_c, 0644);
147 module_param_array(cardtype, int, &cardtype_c, 0644);
148 module_param_string(pal, pal, sizeof(pal), 0644);
149 module_param_string(secam, secam, sizeof(secam), 0644);
150 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
151 module_param_named(debug,ivtv_debug, int, 0644);
152 #ifdef CONFIG_VIDEO_ADV_DEBUG
153 module_param_named(fw_debug, ivtv_fw_debug, int, 0644);
154 #endif
155 module_param(ivtv_pci_latency, int, 0644);
156 module_param(ivtv_yuv_mode, int, 0644);
157 module_param(ivtv_yuv_threshold, int, 0644);
158 module_param(ivtv_first_minor, int, 0644);
159 
160 module_param(enc_mpg_buffers, int, 0644);
161 module_param(enc_yuv_buffers, int, 0644);
162 module_param(enc_vbi_buffers, int, 0644);
163 module_param(enc_pcm_buffers, int, 0644);
164 module_param(dec_mpg_buffers, int, 0644);
165 module_param(dec_yuv_buffers, int, 0644);
166 module_param(dec_vbi_buffers, int, 0644);
167 
168 module_param(tunertype, int, 0644);
169 module_param(newi2c, int, 0644);
170 module_param_array(i2c_clock_period, int, &i2c_clock_period_c, 0644);
171 
172 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
173 			"\t\t\tsee tuner.h for values");
174 MODULE_PARM_DESC(radio,
175 		 "Enable or disable the radio. Use only if autodetection\n"
176 		 "\t\t\tfails. 0 = disable, 1 = enable");
177 MODULE_PARM_DESC(cardtype,
178 		 "Only use this option if your card is not detected properly.\n"
179 		 "\t\tSpecify card type:\n"
180 		 "\t\t\t 1 = WinTV PVR 250\n"
181 		 "\t\t\t 2 = WinTV PVR 350\n"
182 		 "\t\t\t 3 = WinTV PVR-150 or PVR-500\n"
183 		 "\t\t\t 4 = AVerMedia M179\n"
184 		 "\t\t\t 5 = YUAN MPG600/Kuroutoshikou iTVC16-STVLP\n"
185 		 "\t\t\t 6 = YUAN MPG160/Kuroutoshikou iTVC15-STVLP\n"
186 		 "\t\t\t 7 = YUAN PG600/DIAMONDMM PVR-550 (CX Falcon 2)\n"
187 		 "\t\t\t 8 = Adaptec AVC-2410\n"
188 		 "\t\t\t 9 = Adaptec AVC-2010\n"
189 		 "\t\t\t10 = NAGASE TRANSGEAR 5000TV\n"
190 		 "\t\t\t11 = AOpen VA2000MAX-STN6\n"
191 		 "\t\t\t12 = YUAN MPG600GR/Kuroutoshikou CX23416GYC-STVLP\n"
192 		 "\t\t\t13 = I/O Data GV-MVP/RX\n"
193 		 "\t\t\t14 = I/O Data GV-MVP/RX2E\n"
194 		 "\t\t\t15 = GOTVIEW PCI DVD\n"
195 		 "\t\t\t16 = GOTVIEW PCI DVD2 Deluxe\n"
196 		 "\t\t\t17 = Yuan MPC622\n"
197 		 "\t\t\t18 = Digital Cowboy DCT-MTVP1\n"
198 		 "\t\t\t19 = Yuan PG600V2/GotView PCI DVD Lite\n"
199 		 "\t\t\t20 = Club3D ZAP-TV1x01\n"
200 		 "\t\t\t21 = AverTV MCE 116 Plus\n"
201 		 "\t\t\t22 = ASUS Falcon2\n"
202 		 "\t\t\t23 = AverMedia PVR-150 Plus\n"
203 		 "\t\t\t24 = AverMedia EZMaker PCI Deluxe\n"
204 		 "\t\t\t25 = AverMedia M104 (not yet working)\n"
205 		 "\t\t\t26 = Buffalo PC-MV5L/PCI\n"
206 		 "\t\t\t27 = AVerMedia UltraTV 1500 MCE\n"
207 		 "\t\t\t28 = Sony VAIO Giga Pocket (ENX Kikyou)\n"
208 		 "\t\t\t 0 = Autodetect (default)\n"
209 		 "\t\t\t-1 = Ignore this card\n\t\t");
210 MODULE_PARM_DESC(pal, "Set PAL standard: BGH, DK, I, M, N, Nc, 60");
211 MODULE_PARM_DESC(secam, "Set SECAM standard: BGH, DK, L, LC");
212 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J (Japan), K (South Korea)");
213 MODULE_PARM_DESC(tunertype,
214 		"Specify tuner type:\n"
215 		"\t\t\t 0 = tuner for PAL-B/G/H/D/K/I, SECAM-B/G/H/D/K/L/Lc\n"
216 		"\t\t\t 1 = tuner for NTSC-M/J/K, PAL-M/N/Nc\n"
217 		"\t\t\t-1 = Autodetect (default)\n");
218 MODULE_PARM_DESC(debug,
219 		 "Debug level (bitmask). Default: 0\n"
220 		 "\t\t\t   1/0x0001: warning\n"
221 		 "\t\t\t   2/0x0002: info\n"
222 		 "\t\t\t   4/0x0004: mailbox\n"
223 		 "\t\t\t   8/0x0008: ioctl\n"
224 		 "\t\t\t  16/0x0010: file\n"
225 		 "\t\t\t  32/0x0020: dma\n"
226 		 "\t\t\t  64/0x0040: irq\n"
227 		 "\t\t\t 128/0x0080: decoder\n"
228 		 "\t\t\t 256/0x0100: yuv\n"
229 		 "\t\t\t 512/0x0200: i2c\n"
230 		 "\t\t\t1024/0x0400: high volume\n");
231 #ifdef CONFIG_VIDEO_ADV_DEBUG
232 MODULE_PARM_DESC(fw_debug,
233 		 "Enable code for debugging firmware problems.  Default: 0\n");
234 #endif
235 MODULE_PARM_DESC(ivtv_pci_latency,
236 		 "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
237 		 "\t\t\tDefault: Yes");
238 MODULE_PARM_DESC(ivtv_yuv_mode,
239 		 "Specify the yuv playback mode:\n"
240 		 "\t\t\t0 = interlaced\n\t\t\t1 = progressive\n\t\t\t2 = auto\n"
241 		 "\t\t\tDefault: 0 (interlaced)");
242 MODULE_PARM_DESC(ivtv_yuv_threshold,
243 		 "If ivtv_yuv_mode is 2 (auto) then playback content as\n\t\tprogressive if src height <= ivtv_yuvthreshold\n"
244 		 "\t\t\tDefault: 480");
245 MODULE_PARM_DESC(enc_mpg_buffers,
246 		 "Encoder MPG Buffers (in MB)\n"
247 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_MPG_BUFFERS));
248 MODULE_PARM_DESC(enc_yuv_buffers,
249 		 "Encoder YUV Buffers (in MB)\n"
250 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_YUV_BUFFERS));
251 MODULE_PARM_DESC(enc_vbi_buffers,
252 		 "Encoder VBI Buffers (in MB)\n"
253 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_VBI_BUFFERS));
254 MODULE_PARM_DESC(enc_pcm_buffers,
255 		 "Encoder PCM buffers (in kB)\n"
256 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_PCM_BUFFERS));
257 MODULE_PARM_DESC(dec_mpg_buffers,
258 		 "Decoder MPG buffers (in MB)\n"
259 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_MPG_BUFFERS));
260 MODULE_PARM_DESC(dec_yuv_buffers,
261 		 "Decoder YUV buffers (in MB)\n"
262 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_YUV_BUFFERS));
263 MODULE_PARM_DESC(dec_vbi_buffers,
264 		 "Decoder VBI buffers (in kB)\n"
265 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_VBI_BUFFERS));
266 MODULE_PARM_DESC(newi2c,
267 		 "Use new I2C implementation\n"
268 		 "\t\t\t-1 is autodetect, 0 is off, 1 is on\n"
269 		 "\t\t\tDefault is autodetect");
270 MODULE_PARM_DESC(i2c_clock_period,
271 		 "Period of SCL for the I2C bus controlled by the CX23415/6\n"
272 		 "\t\t\tMin: 10 usec (100 kHz), Max: 4500 usec (222 Hz)\n"
273 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_I2C_CLOCK_PERIOD));
274 
275 MODULE_PARM_DESC(ivtv_first_minor, "Set device node number assigned to first card");
276 
277 MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
278 MODULE_DESCRIPTION("CX23415/CX23416 driver");
279 MODULE_SUPPORTED_DEVICE
280     ("CX23415/CX23416 MPEG2 encoder (WinTV PVR-150/250/350/500,\n"
281 		"\t\t\tYuan MPG series and similar)");
282 MODULE_LICENSE("GPL");
283 
284 MODULE_VERSION(IVTV_VERSION);
285 
286 #if defined(CONFIG_MODULES) && defined(MODULE)
287 static void request_module_async(struct work_struct *work)
288 {
289 	struct ivtv *dev = container_of(work, struct ivtv, request_module_wk);
290 
291 	/* Make sure ivtv-alsa module is loaded */
292 	request_module("ivtv-alsa");
293 
294 	/* Initialize ivtv-alsa for this instance of the cx18 device */
295 	if (ivtv_ext_init != NULL)
296 		ivtv_ext_init(dev);
297 }
298 
299 static void request_modules(struct ivtv *dev)
300 {
301 	INIT_WORK(&dev->request_module_wk, request_module_async);
302 	schedule_work(&dev->request_module_wk);
303 }
304 
305 static void flush_request_modules(struct ivtv *dev)
306 {
307 	flush_work(&dev->request_module_wk);
308 }
309 #else
310 #define request_modules(dev)
311 #define flush_request_modules(dev)
312 #endif /* CONFIG_MODULES */
313 
314 void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask)
315 {
316 	itv->irqmask &= ~mask;
317 	write_reg_sync(itv->irqmask, IVTV_REG_IRQMASK);
318 }
319 
320 void ivtv_set_irq_mask(struct ivtv *itv, u32 mask)
321 {
322 	itv->irqmask |= mask;
323 	write_reg_sync(itv->irqmask, IVTV_REG_IRQMASK);
324 }
325 
326 int ivtv_set_output_mode(struct ivtv *itv, int mode)
327 {
328     int old_mode;
329 
330     spin_lock(&itv->lock);
331     old_mode = itv->output_mode;
332     if (old_mode == 0)
333 	itv->output_mode = old_mode = mode;
334     spin_unlock(&itv->lock);
335     return old_mode;
336 }
337 
338 struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv)
339 {
340 	switch (itv->output_mode) {
341 	case OUT_MPG:
342 		return &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];
343 	case OUT_YUV:
344 		return &itv->streams[IVTV_DEC_STREAM_TYPE_YUV];
345 	default:
346 		return NULL;
347 	}
348 }
349 
350 int ivtv_waitq(wait_queue_head_t *waitq)
351 {
352 	DEFINE_WAIT(wait);
353 
354 	prepare_to_wait(waitq, &wait, TASK_INTERRUPTIBLE);
355 	schedule();
356 	finish_wait(waitq, &wait);
357 	return signal_pending(current) ? -EINTR : 0;
358 }
359 
360 /* Generic utility functions */
361 int ivtv_msleep_timeout(unsigned int msecs, int intr)
362 {
363 	int timeout = msecs_to_jiffies(msecs);
364 
365 	do {
366 		set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
367 		timeout = schedule_timeout(timeout);
368 		if (intr) {
369 			int ret = signal_pending(current);
370 
371 			if (ret)
372 				return ret;
373 		}
374 	} while (timeout);
375 	return 0;
376 }
377 
378 /* Release ioremapped memory */
379 static void ivtv_iounmap(struct ivtv *itv)
380 {
381 	if (itv == NULL)
382 		return;
383 
384 	/* Release registers memory */
385 	if (itv->reg_mem != NULL) {
386 		IVTV_DEBUG_INFO("releasing reg_mem\n");
387 		iounmap(itv->reg_mem);
388 		itv->reg_mem = NULL;
389 	}
390 	/* Release io memory */
391 	if (itv->has_cx23415 && itv->dec_mem != NULL) {
392 		IVTV_DEBUG_INFO("releasing dec_mem\n");
393 		iounmap(itv->dec_mem);
394 	}
395 	itv->dec_mem = NULL;
396 
397 	/* Release io memory */
398 	if (itv->enc_mem != NULL) {
399 		IVTV_DEBUG_INFO("releasing enc_mem\n");
400 		iounmap(itv->enc_mem);
401 		itv->enc_mem = NULL;
402 	}
403 }
404 
405 /* Hauppauge card? get values from tveeprom */
406 void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv)
407 {
408 	u8 eedata[256];
409 
410 	itv->i2c_client.addr = 0xA0 >> 1;
411 	tveeprom_read(&itv->i2c_client, eedata, sizeof(eedata));
412 	tveeprom_hauppauge_analog(tv, eedata);
413 }
414 
415 static void ivtv_process_eeprom(struct ivtv *itv)
416 {
417 	struct tveeprom tv;
418 	int pci_slot = PCI_SLOT(itv->pdev->devfn);
419 
420 	ivtv_read_eeprom(itv, &tv);
421 
422 	/* Many thanks to Steven Toth from Hauppauge for providing the
423 	   model numbers */
424 	switch (tv.model) {
425 		/* In a few cases the PCI subsystem IDs do not correctly
426 		   identify the card. A better method is to check the
427 		   model number from the eeprom instead. */
428 		case 30012 ... 30039:  /* Low profile PVR250 */
429 		case 32000 ... 32999:
430 		case 48000 ... 48099:  /* 48??? range are PVR250s with a cx23415 */
431 		case 48400 ... 48599:
432 			itv->card = ivtv_get_card(IVTV_CARD_PVR_250);
433 			break;
434 		case 48100 ... 48399:
435 		case 48600 ... 48999:
436 			itv->card = ivtv_get_card(IVTV_CARD_PVR_350);
437 			break;
438 		case 23000 ... 23999:  /* PVR500 */
439 		case 25000 ... 25999:  /* Low profile PVR150 */
440 		case 26000 ... 26999:  /* Regular PVR150 */
441 			itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
442 			break;
443 		case 0:
444 			IVTV_ERR("Invalid EEPROM\n");
445 			return;
446 		default:
447 			IVTV_ERR("Unknown model %d, defaulting to PVR-150\n", tv.model);
448 			itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
449 			break;
450 	}
451 
452 	switch (tv.model) {
453 		/* Old style PVR350 (with an saa7114) uses this input for
454 		   the tuner. */
455 		case 48254:
456 			itv->card = ivtv_get_card(IVTV_CARD_PVR_350_V1);
457 			break;
458 		default:
459 			break;
460 	}
461 
462 	itv->v4l2_cap = itv->card->v4l2_capabilities;
463 	itv->card_name = itv->card->name;
464 	itv->card_i2c = itv->card->i2c;
465 
466 	/* If this is a PVR500 then it should be possible to detect whether it is the
467 	   first or second unit by looking at the subsystem device ID: is bit 4 is
468 	   set, then it is the second unit (according to info from Hauppauge).
469 
470 	   However, while this works for most cards, I have seen a few PVR500 cards
471 	   where both units have the same subsystem ID.
472 
473 	   So instead I look at the reported 'PCI slot' (which is the slot on the PVR500
474 	   PCI bridge) and if it is 8, then it is assumed to be the first unit, otherwise
475 	   it is the second unit. It is possible that it is a different slot when ivtv is
476 	   used in Xen, in that case I ignore this card here. The worst that can happen
477 	   is that the card presents itself with a non-working radio device.
478 
479 	   This detection is needed since the eeprom reports incorrectly that a radio is
480 	   present on the second unit. */
481 	if (tv.model / 1000 == 23) {
482 		static const struct ivtv_card_tuner_i2c ivtv_i2c_radio = {
483 			.radio = { 0x60, I2C_CLIENT_END },
484 			.demod = { 0x43, I2C_CLIENT_END },
485 			.tv = { 0x61, I2C_CLIENT_END },
486 		};
487 
488 		itv->card_name = "WinTV PVR 500";
489 		itv->card_i2c = &ivtv_i2c_radio;
490 		if (pci_slot == 8 || pci_slot == 9) {
491 			int is_first = (pci_slot & 1) == 0;
492 
493 			itv->card_name = is_first ? "WinTV PVR 500 (unit #1)" :
494 						    "WinTV PVR 500 (unit #2)";
495 			if (!is_first) {
496 				IVTV_INFO("Correcting tveeprom data: no radio present on second unit\n");
497 				tv.has_radio = 0;
498 			}
499 		}
500 	}
501 	IVTV_INFO("Autodetected %s\n", itv->card_name);
502 
503 	switch (tv.tuner_hauppauge_model) {
504 		case 85:
505 		case 99:
506 		case 112:
507 			itv->pvr150_workaround = 1;
508 			break;
509 		default:
510 			break;
511 	}
512 	if (tv.tuner_type == TUNER_ABSENT)
513 		IVTV_ERR("tveeprom cannot autodetect tuner!\n");
514 
515 	if (itv->options.tuner == -1)
516 		itv->options.tuner = tv.tuner_type;
517 	if (itv->options.radio == -1)
518 		itv->options.radio = (tv.has_radio != 0);
519 	/* only enable newi2c if an IR blaster is present */
520 	if (itv->options.newi2c == -1 && tv.has_ir) {
521 		itv->options.newi2c = (tv.has_ir & 4) ? 1 : 0;
522 		if (itv->options.newi2c) {
523 		    IVTV_INFO("Reopen i2c bus for IR-blaster support\n");
524 		    exit_ivtv_i2c(itv);
525 		    init_ivtv_i2c(itv);
526 		}
527 	}
528 
529 	if (itv->std != 0)
530 		/* user specified tuner standard */
531 		return;
532 
533 	/* autodetect tuner standard */
534 	if (tv.tuner_formats & V4L2_STD_PAL) {
535 		IVTV_DEBUG_INFO("PAL tuner detected\n");
536 		itv->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
537 	} else if (tv.tuner_formats & V4L2_STD_NTSC) {
538 		IVTV_DEBUG_INFO("NTSC tuner detected\n");
539 		itv->std |= V4L2_STD_NTSC_M;
540 	} else if (tv.tuner_formats & V4L2_STD_SECAM) {
541 		IVTV_DEBUG_INFO("SECAM tuner detected\n");
542 		itv->std |= V4L2_STD_SECAM_L;
543 	} else {
544 		IVTV_INFO("No tuner detected, default to NTSC-M\n");
545 		itv->std |= V4L2_STD_NTSC_M;
546 	}
547 }
548 
549 static v4l2_std_id ivtv_parse_std(struct ivtv *itv)
550 {
551 	switch (pal[0]) {
552 		case '6':
553 			tunertype = 0;
554 			return V4L2_STD_PAL_60;
555 		case 'b':
556 		case 'B':
557 		case 'g':
558 		case 'G':
559 		case 'h':
560 		case 'H':
561 			tunertype = 0;
562 			return V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
563 		case 'n':
564 		case 'N':
565 			tunertype = 1;
566 			if (pal[1] == 'c' || pal[1] == 'C')
567 				return V4L2_STD_PAL_Nc;
568 			return V4L2_STD_PAL_N;
569 		case 'i':
570 		case 'I':
571 			tunertype = 0;
572 			return V4L2_STD_PAL_I;
573 		case 'd':
574 		case 'D':
575 		case 'k':
576 		case 'K':
577 			tunertype = 0;
578 			return V4L2_STD_PAL_DK;
579 		case 'M':
580 		case 'm':
581 			tunertype = 1;
582 			return V4L2_STD_PAL_M;
583 		case '-':
584 			break;
585 		default:
586 			IVTV_WARN("pal= argument not recognised\n");
587 			return 0;
588 	}
589 
590 	switch (secam[0]) {
591 		case 'b':
592 		case 'B':
593 		case 'g':
594 		case 'G':
595 		case 'h':
596 		case 'H':
597 			tunertype = 0;
598 			return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
599 		case 'd':
600 		case 'D':
601 		case 'k':
602 		case 'K':
603 			tunertype = 0;
604 			return V4L2_STD_SECAM_DK;
605 		case 'l':
606 		case 'L':
607 			tunertype = 0;
608 			if (secam[1] == 'C' || secam[1] == 'c')
609 				return V4L2_STD_SECAM_LC;
610 			return V4L2_STD_SECAM_L;
611 		case '-':
612 			break;
613 		default:
614 			IVTV_WARN("secam= argument not recognised\n");
615 			return 0;
616 	}
617 
618 	switch (ntsc[0]) {
619 		case 'm':
620 		case 'M':
621 			tunertype = 1;
622 			return V4L2_STD_NTSC_M;
623 		case 'j':
624 		case 'J':
625 			tunertype = 1;
626 			return V4L2_STD_NTSC_M_JP;
627 		case 'k':
628 		case 'K':
629 			tunertype = 1;
630 			return V4L2_STD_NTSC_M_KR;
631 		case '-':
632 			break;
633 		default:
634 			IVTV_WARN("ntsc= argument not recognised\n");
635 			return 0;
636 	}
637 
638 	/* no match found */
639 	return 0;
640 }
641 
642 static void ivtv_process_options(struct ivtv *itv)
643 {
644 	const char *chipname;
645 	int i, j;
646 
647 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers * 1024;
648 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers * 1024;
649 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers * 1024;
650 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
651 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_MPG] = dec_mpg_buffers * 1024;
652 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_YUV] = dec_yuv_buffers * 1024;
653 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_VBI] = dec_vbi_buffers;
654 	itv->options.cardtype = cardtype[itv->instance];
655 	itv->options.tuner = tuner[itv->instance];
656 	itv->options.radio = radio[itv->instance];
657 
658 	itv->options.i2c_clock_period = i2c_clock_period[itv->instance];
659 	if (itv->options.i2c_clock_period == -1)
660 		itv->options.i2c_clock_period = IVTV_DEFAULT_I2C_CLOCK_PERIOD;
661 	else if (itv->options.i2c_clock_period < 10)
662 		itv->options.i2c_clock_period = 10;
663 	else if (itv->options.i2c_clock_period > 4500)
664 		itv->options.i2c_clock_period = 4500;
665 
666 	itv->options.newi2c = newi2c;
667 	if (tunertype < -1 || tunertype > 1) {
668 		IVTV_WARN("Invalid tunertype argument, will autodetect instead\n");
669 		tunertype = -1;
670 	}
671 	itv->std = ivtv_parse_std(itv);
672 	if (itv->std == 0 && tunertype >= 0)
673 		itv->std = tunertype ? V4L2_STD_MN : (V4L2_STD_ALL & ~V4L2_STD_MN);
674 	itv->has_cx23415 = (itv->pdev->device == PCI_DEVICE_ID_IVTV15);
675 	chipname = itv->has_cx23415 ? "cx23415" : "cx23416";
676 	if (itv->options.cardtype == -1) {
677 		IVTV_INFO("Ignore card (detected %s based chip)\n", chipname);
678 		return;
679 	}
680 	if ((itv->card = ivtv_get_card(itv->options.cardtype - 1))) {
681 		IVTV_INFO("User specified %s card (detected %s based chip)\n",
682 				itv->card->name, chipname);
683 	} else if (itv->options.cardtype != 0) {
684 		IVTV_ERR("Unknown user specified type, trying to autodetect card\n");
685 	}
686 	if (itv->card == NULL) {
687 		if (itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE ||
688 		    itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE_ALT1 ||
689 		    itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE_ALT2) {
690 			itv->card = ivtv_get_card(itv->has_cx23415 ? IVTV_CARD_PVR_350 : IVTV_CARD_PVR_150);
691 			IVTV_INFO("Autodetected Hauppauge card (%s based)\n",
692 					chipname);
693 		}
694 	}
695 	if (itv->card == NULL) {
696 		for (i = 0; (itv->card = ivtv_get_card(i)); i++) {
697 			if (itv->card->pci_list == NULL)
698 				continue;
699 			for (j = 0; itv->card->pci_list[j].device; j++) {
700 				if (itv->pdev->device !=
701 				    itv->card->pci_list[j].device)
702 					continue;
703 				if (itv->pdev->subsystem_vendor !=
704 				    itv->card->pci_list[j].subsystem_vendor)
705 					continue;
706 				if (itv->pdev->subsystem_device !=
707 				    itv->card->pci_list[j].subsystem_device)
708 					continue;
709 				IVTV_INFO("Autodetected %s card (%s based)\n",
710 						itv->card->name, chipname);
711 				goto done;
712 			}
713 		}
714 	}
715 done:
716 
717 	if (itv->card == NULL) {
718 		itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
719 		IVTV_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
720 		     itv->pdev->vendor, itv->pdev->device);
721 		IVTV_ERR("              subsystem vendor/device: [%04x:%04x]\n",
722 		     itv->pdev->subsystem_vendor, itv->pdev->subsystem_device);
723 		IVTV_ERR("              %s based\n", chipname);
724 		IVTV_ERR("Defaulting to %s card\n", itv->card->name);
725 		IVTV_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
726 		IVTV_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
727 		IVTV_ERR("Prefix your subject line with [UNKNOWN IVTV CARD].\n");
728 	}
729 	itv->v4l2_cap = itv->card->v4l2_capabilities;
730 	itv->card_name = itv->card->name;
731 	itv->card_i2c = itv->card->i2c;
732 }
733 
734 /* Precondition: the ivtv structure has been memset to 0. Only
735    the dev and num fields have been filled in.
736    No assumptions on the card type may be made here (see ivtv_init_struct2
737    for that).
738  */
739 static int ivtv_init_struct1(struct ivtv *itv)
740 {
741 	struct sched_param param = { .sched_priority = 99 };
742 
743 	itv->base_addr = pci_resource_start(itv->pdev, 0);
744 	itv->enc_mbox.max_mbox = 2; /* the encoder has 3 mailboxes (0-2) */
745 	itv->dec_mbox.max_mbox = 1; /* the decoder has 2 mailboxes (0-1) */
746 
747 	mutex_init(&itv->serialize_lock);
748 	mutex_init(&itv->i2c_bus_lock);
749 	mutex_init(&itv->udma.lock);
750 
751 	spin_lock_init(&itv->lock);
752 	spin_lock_init(&itv->dma_reg_lock);
753 
754 	kthread_init_worker(&itv->irq_worker);
755 	itv->irq_worker_task = kthread_run(kthread_worker_fn, &itv->irq_worker,
756 					   "%s", itv->v4l2_dev.name);
757 	if (IS_ERR(itv->irq_worker_task)) {
758 		IVTV_ERR("Could not create ivtv task\n");
759 		return -1;
760 	}
761 	/* must use the FIFO scheduler as it is realtime sensitive */
762 	sched_setscheduler(itv->irq_worker_task, SCHED_FIFO, &param);
763 
764 	kthread_init_work(&itv->irq_work, ivtv_irq_work_handler);
765 
766 	/* Initial settings */
767 	itv->cxhdl.port = CX2341X_PORT_MEMORY;
768 	itv->cxhdl.capabilities = CX2341X_CAP_HAS_SLICED_VBI;
769 	init_waitqueue_head(&itv->eos_waitq);
770 	init_waitqueue_head(&itv->event_waitq);
771 	init_waitqueue_head(&itv->vsync_waitq);
772 	init_waitqueue_head(&itv->dma_waitq);
773 	timer_setup(&itv->dma_timer, ivtv_unfinished_dma, 0);
774 
775 	itv->cur_dma_stream = -1;
776 	itv->cur_pio_stream = -1;
777 
778 	/* Ctrls */
779 	itv->speed = 1000;
780 
781 	/* VBI */
782 	itv->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
783 	itv->vbi.sliced_in = &itv->vbi.in.fmt.sliced;
784 
785 	/* Init the sg table for osd/yuv output */
786 	sg_init_table(itv->udma.SGlist, IVTV_DMA_SG_OSD_ENT);
787 
788 	/* OSD */
789 	itv->osd_global_alpha_state = 1;
790 	itv->osd_global_alpha = 255;
791 
792 	/* YUV */
793 	atomic_set(&itv->yuv_info.next_dma_frame, -1);
794 	itv->yuv_info.lace_mode = ivtv_yuv_mode;
795 	itv->yuv_info.lace_threshold = ivtv_yuv_threshold;
796 	itv->yuv_info.max_frames_buffered = 3;
797 	itv->yuv_info.track_osd = 1;
798 	return 0;
799 }
800 
801 /* Second initialization part. Here the card type has been
802    autodetected. */
803 static void ivtv_init_struct2(struct ivtv *itv)
804 {
805 	int i;
806 
807 	for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS; i++)
808 		if (itv->card->video_inputs[i].video_type == 0)
809 			break;
810 	itv->nof_inputs = i;
811 	for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS; i++)
812 		if (itv->card->audio_inputs[i].audio_type == 0)
813 			break;
814 	itv->nof_audio_inputs = i;
815 
816 	if (itv->card->hw_all & IVTV_HW_CX25840) {
817 		itv->vbi.sliced_size = 288;  /* multiple of 16, real size = 284 */
818 	} else {
819 		itv->vbi.sliced_size = 64;   /* multiple of 16, real size = 52 */
820 	}
821 
822 	/* Find tuner input */
823 	for (i = 0; i < itv->nof_inputs; i++) {
824 		if (itv->card->video_inputs[i].video_type ==
825 				IVTV_CARD_INPUT_VID_TUNER)
826 			break;
827 	}
828 	if (i >= itv->nof_inputs)
829 		i = 0;
830 	itv->active_input = i;
831 	itv->audio_input = itv->card->video_inputs[i].audio_index;
832 }
833 
834 static int ivtv_setup_pci(struct ivtv *itv, struct pci_dev *pdev,
835 			  const struct pci_device_id *pci_id)
836 {
837 	u16 cmd;
838 	unsigned char pci_latency;
839 
840 	IVTV_DEBUG_INFO("Enabling pci device\n");
841 
842 	if (pci_enable_device(pdev)) {
843 		IVTV_ERR("Can't enable device!\n");
844 		return -EIO;
845 	}
846 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
847 		IVTV_ERR("No suitable DMA available.\n");
848 		return -EIO;
849 	}
850 	if (!request_mem_region(itv->base_addr, IVTV_ENCODER_SIZE, "ivtv encoder")) {
851 		IVTV_ERR("Cannot request encoder memory region.\n");
852 		return -EIO;
853 	}
854 
855 	if (!request_mem_region(itv->base_addr + IVTV_REG_OFFSET,
856 				IVTV_REG_SIZE, "ivtv registers")) {
857 		IVTV_ERR("Cannot request register memory region.\n");
858 		release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
859 		return -EIO;
860 	}
861 
862 	if (itv->has_cx23415 &&
863 	    !request_mem_region(itv->base_addr + IVTV_DECODER_OFFSET,
864 				IVTV_DECODER_SIZE, "ivtv decoder")) {
865 		IVTV_ERR("Cannot request decoder memory region.\n");
866 		release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
867 		release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
868 		return -EIO;
869 	}
870 
871 	/* Check for bus mastering */
872 	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
873 	if (!(cmd & PCI_COMMAND_MASTER)) {
874 		IVTV_DEBUG_INFO("Attempting to enable Bus Mastering\n");
875 		pci_set_master(pdev);
876 		pci_read_config_word(pdev, PCI_COMMAND, &cmd);
877 		if (!(cmd & PCI_COMMAND_MASTER)) {
878 			IVTV_ERR("Bus Mastering is not enabled\n");
879 			return -ENXIO;
880 		}
881 	}
882 	IVTV_DEBUG_INFO("Bus Mastering Enabled.\n");
883 
884 	pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
885 
886 	if (pci_latency < 64 && ivtv_pci_latency) {
887 		IVTV_INFO("Unreasonably low latency timer, setting to 64 (was %d)\n",
888 			  pci_latency);
889 		pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
890 		pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
891 	}
892 	/* This config space value relates to DMA latencies. The
893 	   default value 0x8080 is too low however and will lead
894 	   to DMA errors. 0xffff is the max value which solves
895 	   these problems. */
896 	pci_write_config_dword(pdev, 0x40, 0xffff);
897 
898 	IVTV_DEBUG_INFO("%d (rev %d) at %02x:%02x.%x, irq: %d, latency: %d, memory: 0x%llx\n",
899 		   pdev->device, pdev->revision, pdev->bus->number,
900 		   PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn),
901 		   pdev->irq, pci_latency, (u64)itv->base_addr);
902 
903 	return 0;
904 }
905 
906 static void ivtv_load_and_init_modules(struct ivtv *itv)
907 {
908 	u32 hw = itv->card->hw_all;
909 	unsigned i;
910 
911 	/* check which i2c devices are actually found */
912 	for (i = 0; i < 32; i++) {
913 		u32 device = BIT(i);
914 
915 		if (!(device & hw))
916 			continue;
917 		if (device == IVTV_HW_GPIO || device == IVTV_HW_TVEEPROM) {
918 			/* GPIO and TVEEPROM do not use i2c probing */
919 			itv->hw_flags |= device;
920 			continue;
921 		}
922 		if (ivtv_i2c_register(itv, i) == 0)
923 			itv->hw_flags |= device;
924 	}
925 
926 	/* probe for legacy IR controllers that aren't in card definitions */
927 	if ((itv->hw_flags & IVTV_HW_IR_ANY) == 0)
928 		ivtv_i2c_new_ir_legacy(itv);
929 
930 	if (itv->card->hw_all & IVTV_HW_CX25840)
931 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_CX25840);
932 	else if (itv->card->hw_all & IVTV_HW_SAA717X)
933 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA717X);
934 	else if (itv->card->hw_all & IVTV_HW_SAA7114)
935 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA7114);
936 	else
937 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA7115);
938 	itv->sd_audio = ivtv_find_hw(itv, itv->card->hw_audio_ctrl);
939 	itv->sd_muxer = ivtv_find_hw(itv, itv->card->hw_muxer);
940 
941 	hw = itv->hw_flags;
942 
943 	if (itv->card->type == IVTV_CARD_CX23416GYC) {
944 		/* Several variations of this card exist, detect which card
945 		   type should be used. */
946 		if ((hw & (IVTV_HW_UPD64031A | IVTV_HW_UPD6408X)) == 0)
947 			itv->card = ivtv_get_card(IVTV_CARD_CX23416GYC_NOGRYCS);
948 		else if ((hw & IVTV_HW_UPD64031A) == 0)
949 			itv->card = ivtv_get_card(IVTV_CARD_CX23416GYC_NOGR);
950 	}
951 	else if (itv->card->type == IVTV_CARD_GV_MVPRX ||
952 		 itv->card->type == IVTV_CARD_GV_MVPRX2E) {
953 		/* The crystal frequency of GVMVPRX is 24.576MHz */
954 		v4l2_subdev_call(itv->sd_video, video, s_crystal_freq,
955 			SAA7115_FREQ_24_576_MHZ, SAA7115_FREQ_FL_UCGC);
956 	}
957 
958 	if (hw & IVTV_HW_CX25840) {
959 		itv->vbi.raw_decoder_line_size = 1444;
960 		itv->vbi.raw_decoder_sav_odd_field = 0x20;
961 		itv->vbi.raw_decoder_sav_even_field = 0x60;
962 		itv->vbi.sliced_decoder_line_size = 272;
963 		itv->vbi.sliced_decoder_sav_odd_field = 0xB0;
964 		itv->vbi.sliced_decoder_sav_even_field = 0xF0;
965 	}
966 
967 	if (hw & IVTV_HW_SAA711X) {
968 		/* determine the exact saa711x model */
969 		itv->hw_flags &= ~IVTV_HW_SAA711X;
970 
971 		if (strstr(itv->sd_video->name, "saa7114")) {
972 			itv->hw_flags |= IVTV_HW_SAA7114;
973 			/* VBI is not yet supported by the saa7114 driver. */
974 			itv->v4l2_cap &= ~(V4L2_CAP_SLICED_VBI_CAPTURE|V4L2_CAP_VBI_CAPTURE);
975 		} else {
976 			itv->hw_flags |= IVTV_HW_SAA7115;
977 		}
978 		itv->vbi.raw_decoder_line_size = 1443;
979 		itv->vbi.raw_decoder_sav_odd_field = 0x25;
980 		itv->vbi.raw_decoder_sav_even_field = 0x62;
981 		itv->vbi.sliced_decoder_line_size = 51;
982 		itv->vbi.sliced_decoder_sav_odd_field = 0xAB;
983 		itv->vbi.sliced_decoder_sav_even_field = 0xEC;
984 	}
985 
986 	if (hw & IVTV_HW_SAA717X) {
987 		itv->vbi.raw_decoder_line_size = 1443;
988 		itv->vbi.raw_decoder_sav_odd_field = 0x25;
989 		itv->vbi.raw_decoder_sav_even_field = 0x62;
990 		itv->vbi.sliced_decoder_line_size = 51;
991 		itv->vbi.sliced_decoder_sav_odd_field = 0xAB;
992 		itv->vbi.sliced_decoder_sav_even_field = 0xEC;
993 	}
994 }
995 
996 static int ivtv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
997 {
998 	int retval = 0;
999 	int vbi_buf_size;
1000 	struct ivtv *itv;
1001 
1002 	itv = kzalloc(sizeof(struct ivtv), GFP_KERNEL);
1003 	if (itv == NULL)
1004 		return -ENOMEM;
1005 	itv->pdev = pdev;
1006 	itv->instance = v4l2_device_set_name(&itv->v4l2_dev, "ivtv",
1007 						&ivtv_instance);
1008 
1009 	retval = v4l2_device_register(&pdev->dev, &itv->v4l2_dev);
1010 	if (retval) {
1011 		kfree(itv);
1012 		return retval;
1013 	}
1014 	IVTV_INFO("Initializing card %d\n", itv->instance);
1015 
1016 	ivtv_process_options(itv);
1017 	if (itv->options.cardtype == -1) {
1018 		retval = -ENODEV;
1019 		goto err;
1020 	}
1021 	if (ivtv_init_struct1(itv)) {
1022 		retval = -ENOMEM;
1023 		goto err;
1024 	}
1025 	retval = cx2341x_handler_init(&itv->cxhdl, 50);
1026 	if (retval)
1027 		goto err;
1028 	itv->v4l2_dev.ctrl_handler = &itv->cxhdl.hdl;
1029 	itv->cxhdl.ops = &ivtv_cxhdl_ops;
1030 	itv->cxhdl.priv = itv;
1031 	itv->cxhdl.func = ivtv_api_func;
1032 
1033 	IVTV_DEBUG_INFO("base addr: 0x%llx\n", (u64)itv->base_addr);
1034 
1035 	/* PCI Device Setup */
1036 	retval = ivtv_setup_pci(itv, pdev, pci_id);
1037 	if (retval == -EIO)
1038 		goto free_worker;
1039 	if (retval == -ENXIO)
1040 		goto free_mem;
1041 
1042 	/* map io memory */
1043 	IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1044 		   (u64)itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE);
1045 	itv->enc_mem = ioremap_nocache(itv->base_addr + IVTV_ENCODER_OFFSET,
1046 				       IVTV_ENCODER_SIZE);
1047 	if (!itv->enc_mem) {
1048 		IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 encoder memory\n");
1049 		IVTV_ERR("Each capture card with a CX23415/6 needs 8 MB of vmalloc address space for this window\n");
1050 		IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1051 		IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1052 		retval = -ENOMEM;
1053 		goto free_mem;
1054 	}
1055 
1056 	if (itv->has_cx23415) {
1057 		IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1058 				(u64)itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1059 		itv->dec_mem = ioremap_nocache(itv->base_addr + IVTV_DECODER_OFFSET,
1060 				IVTV_DECODER_SIZE);
1061 		if (!itv->dec_mem) {
1062 			IVTV_ERR("ioremap failed. Can't get a window into CX23415 decoder memory\n");
1063 			IVTV_ERR("Each capture card with a CX23415 needs 8 MB of vmalloc address space for this window\n");
1064 			IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1065 			IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1066 			retval = -ENOMEM;
1067 			goto free_mem;
1068 		}
1069 	}
1070 	else {
1071 		itv->dec_mem = itv->enc_mem;
1072 	}
1073 
1074 	/* map registers memory */
1075 	IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1076 		   (u64)itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1077 	itv->reg_mem =
1078 	    ioremap_nocache(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1079 	if (!itv->reg_mem) {
1080 		IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 register space\n");
1081 		IVTV_ERR("Each capture card with a CX23415/6 needs 64 kB of vmalloc address space for this window\n");
1082 		IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1083 		IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1084 		retval = -ENOMEM;
1085 		goto free_io;
1086 	}
1087 
1088 	retval = ivtv_gpio_init(itv);
1089 	if (retval)
1090 		goto free_io;
1091 
1092 	/* active i2c  */
1093 	IVTV_DEBUG_INFO("activating i2c...\n");
1094 	if (init_ivtv_i2c(itv)) {
1095 		IVTV_ERR("Could not initialize i2c\n");
1096 		goto free_io;
1097 	}
1098 
1099 	if (itv->card->hw_all & IVTV_HW_TVEEPROM) {
1100 		/* Based on the model number the cardtype may be changed.
1101 		   The PCI IDs are not always reliable. */
1102 		ivtv_process_eeprom(itv);
1103 	}
1104 	if (itv->card->comment)
1105 		IVTV_INFO("%s", itv->card->comment);
1106 	if (itv->card->v4l2_capabilities == 0) {
1107 		/* card was detected but is not supported */
1108 		retval = -ENODEV;
1109 		goto free_i2c;
1110 	}
1111 
1112 	if (itv->std == 0) {
1113 		itv->std = V4L2_STD_NTSC_M;
1114 	}
1115 
1116 	if (itv->options.tuner == -1) {
1117 		int i;
1118 
1119 		for (i = 0; i < IVTV_CARD_MAX_TUNERS; i++) {
1120 			if ((itv->std & itv->card->tuners[i].std) == 0)
1121 				continue;
1122 			itv->options.tuner = itv->card->tuners[i].tuner;
1123 			break;
1124 		}
1125 	}
1126 	/* if no tuner was found, then pick the first tuner in the card list */
1127 	if (itv->options.tuner == -1 && itv->card->tuners[0].std) {
1128 		itv->std = itv->card->tuners[0].std;
1129 		if (itv->std & V4L2_STD_PAL)
1130 			itv->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
1131 		else if (itv->std & V4L2_STD_NTSC)
1132 			itv->std = V4L2_STD_NTSC_M;
1133 		else if (itv->std & V4L2_STD_SECAM)
1134 			itv->std = V4L2_STD_SECAM_L;
1135 		itv->options.tuner = itv->card->tuners[0].tuner;
1136 	}
1137 	if (itv->options.radio == -1)
1138 		itv->options.radio = (itv->card->radio_input.audio_type != 0);
1139 
1140 	/* The card is now fully identified, continue with card-specific
1141 	   initialization. */
1142 	ivtv_init_struct2(itv);
1143 
1144 	ivtv_load_and_init_modules(itv);
1145 
1146 	if (itv->std & V4L2_STD_525_60) {
1147 		itv->is_60hz = 1;
1148 		itv->is_out_60hz = 1;
1149 	} else {
1150 		itv->is_50hz = 1;
1151 		itv->is_out_50hz = 1;
1152 	}
1153 
1154 	itv->yuv_info.osd_full_w = 720;
1155 	itv->yuv_info.osd_full_h = itv->is_out_50hz ? 576 : 480;
1156 	itv->yuv_info.v4l2_src_w = itv->yuv_info.osd_full_w;
1157 	itv->yuv_info.v4l2_src_h = itv->yuv_info.osd_full_h;
1158 
1159 	cx2341x_handler_set_50hz(&itv->cxhdl, itv->is_50hz);
1160 
1161 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_MPG] = 0x08000;
1162 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_PCM] = 0x01200;
1163 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_MPG] = 0x10000;
1164 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_YUV] = 0x10000;
1165 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_YUV] = 0x08000;
1166 
1167 	/* Setup VBI Raw Size. Should be big enough to hold PAL.
1168 	   It is possible to switch between PAL and NTSC, so we need to
1169 	   take the largest size here. */
1170 	/* 1456 is multiple of 16, real size = 1444 */
1171 	itv->vbi.raw_size = 1456;
1172 	/* We use a buffer size of 1/2 of the total size needed for a
1173 	   frame. This is actually very useful, since we now receive
1174 	   a field at a time and that makes 'compressing' the raw data
1175 	   down to size by stripping off the SAV codes a lot easier.
1176 	   Note: having two different buffer sizes prevents standard
1177 	   switching on the fly. We need to find a better solution... */
1178 	vbi_buf_size = itv->vbi.raw_size * (itv->is_60hz ? 24 : 36) / 2;
1179 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
1180 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_VBI] = sizeof(struct v4l2_sliced_vbi_data) * 36;
1181 
1182 	if (itv->options.radio > 0)
1183 		itv->v4l2_cap |= V4L2_CAP_RADIO;
1184 
1185 	if (itv->options.tuner > -1) {
1186 		struct tuner_setup setup;
1187 
1188 		setup.addr = ADDR_UNSET;
1189 		setup.type = itv->options.tuner;
1190 		setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
1191 		if (itv->options.radio > 0)
1192 			setup.mode_mask |= T_RADIO;
1193 		setup.tuner_callback = (setup.type == TUNER_XC2028) ?
1194 			ivtv_reset_tuner_gpio : NULL;
1195 		ivtv_call_all(itv, tuner, s_type_addr, &setup);
1196 		if (setup.type == TUNER_XC2028) {
1197 			static struct xc2028_ctrl ctrl = {
1198 				.fname = XC2028_DEFAULT_FIRMWARE,
1199 				.max_len = 64,
1200 			};
1201 			struct v4l2_priv_tun_config cfg = {
1202 				.tuner = itv->options.tuner,
1203 				.priv = &ctrl,
1204 			};
1205 			ivtv_call_all(itv, tuner, s_config, &cfg);
1206 		}
1207 	}
1208 
1209 	/* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
1210 	   are not. */
1211 	itv->tuner_std = itv->std;
1212 
1213 	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
1214 		struct v4l2_ctrl_handler *hdl = itv->v4l2_dev.ctrl_handler;
1215 
1216 		itv->ctrl_pts = v4l2_ctrl_new_std(hdl, &ivtv_hdl_out_ops,
1217 				V4L2_CID_MPEG_VIDEO_DEC_PTS, 0, 0, 0, 0);
1218 		itv->ctrl_frame = v4l2_ctrl_new_std(hdl, &ivtv_hdl_out_ops,
1219 				V4L2_CID_MPEG_VIDEO_DEC_FRAME, 0, 0, 0, 0);
1220 		/* Note: V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO is not supported,
1221 		   mask that menu item. */
1222 		itv->ctrl_audio_playback =
1223 			v4l2_ctrl_new_std_menu(hdl, &ivtv_hdl_out_ops,
1224 				V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK,
1225 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_SWAPPED_STEREO,
1226 				1 << V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO,
1227 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_STEREO);
1228 		itv->ctrl_audio_multilingual_playback =
1229 			v4l2_ctrl_new_std_menu(hdl, &ivtv_hdl_out_ops,
1230 				V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK,
1231 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_SWAPPED_STEREO,
1232 				1 << V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO,
1233 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_LEFT);
1234 		if (hdl->error) {
1235 			retval = hdl->error;
1236 			goto free_i2c;
1237 		}
1238 		v4l2_ctrl_cluster(2, &itv->ctrl_pts);
1239 		v4l2_ctrl_cluster(2, &itv->ctrl_audio_playback);
1240 		ivtv_call_all(itv, video, s_std_output, itv->std);
1241 		/* Turn off the output signal. The mpeg decoder is not yet
1242 		   active so without this you would get a green image until the
1243 		   mpeg decoder becomes active. */
1244 		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 0);
1245 	}
1246 
1247 	/* clear interrupt mask, effectively disabling interrupts */
1248 	ivtv_set_irq_mask(itv, 0xffffffff);
1249 
1250 	/* Register IRQ */
1251 	retval = request_irq(itv->pdev->irq, ivtv_irq_handler,
1252 	     IRQF_SHARED, itv->v4l2_dev.name, (void *)itv);
1253 	if (retval) {
1254 		IVTV_ERR("Failed to register irq %d\n", retval);
1255 		goto free_i2c;
1256 	}
1257 
1258 	retval = ivtv_streams_setup(itv);
1259 	if (retval) {
1260 		IVTV_ERR("Error %d setting up streams\n", retval);
1261 		goto free_irq;
1262 	}
1263 	retval = ivtv_streams_register(itv);
1264 	if (retval) {
1265 		IVTV_ERR("Error %d registering devices\n", retval);
1266 		goto free_streams;
1267 	}
1268 	IVTV_INFO("Initialized card: %s\n", itv->card_name);
1269 
1270 	/* Load ivtv submodules (ivtv-alsa) */
1271 	request_modules(itv);
1272 	return 0;
1273 
1274 free_streams:
1275 	ivtv_streams_cleanup(itv);
1276 free_irq:
1277 	free_irq(itv->pdev->irq, (void *)itv);
1278 free_i2c:
1279 	v4l2_ctrl_handler_free(&itv->cxhdl.hdl);
1280 	exit_ivtv_i2c(itv);
1281 free_io:
1282 	ivtv_iounmap(itv);
1283 free_mem:
1284 	release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
1285 	release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1286 	if (itv->has_cx23415)
1287 		release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1288 free_worker:
1289 	kthread_stop(itv->irq_worker_task);
1290 err:
1291 	if (retval == 0)
1292 		retval = -ENODEV;
1293 	IVTV_ERR("Error %d on initialization\n", retval);
1294 
1295 	v4l2_device_unregister(&itv->v4l2_dev);
1296 	kfree(itv);
1297 	return retval;
1298 }
1299 
1300 int ivtv_init_on_first_open(struct ivtv *itv)
1301 {
1302 	struct v4l2_frequency vf;
1303 	/* Needed to call ioctls later */
1304 	struct ivtv_open_id fh;
1305 	int fw_retry_count = 3;
1306 	int video_input;
1307 
1308 	fh.itv = itv;
1309 	fh.type = IVTV_ENC_STREAM_TYPE_MPG;
1310 
1311 	if (test_bit(IVTV_F_I_FAILED, &itv->i_flags))
1312 		return -ENXIO;
1313 
1314 	if (test_and_set_bit(IVTV_F_I_INITED, &itv->i_flags))
1315 		return 0;
1316 
1317 	while (--fw_retry_count > 0) {
1318 		/* load firmware */
1319 		if (ivtv_firmware_init(itv) == 0)
1320 			break;
1321 		if (fw_retry_count > 1)
1322 			IVTV_WARN("Retry loading firmware\n");
1323 	}
1324 
1325 	if (fw_retry_count == 0) {
1326 		set_bit(IVTV_F_I_FAILED, &itv->i_flags);
1327 		return -ENXIO;
1328 	}
1329 
1330 	/* Try and get firmware versions */
1331 	IVTV_DEBUG_INFO("Getting firmware version..\n");
1332 	ivtv_firmware_versions(itv);
1333 
1334 	if (itv->card->hw_all & IVTV_HW_CX25840)
1335 		v4l2_subdev_call(itv->sd_video, core, load_fw);
1336 
1337 	vf.tuner = 0;
1338 	vf.type = V4L2_TUNER_ANALOG_TV;
1339 	vf.frequency = 6400; /* the tuner 'baseline' frequency */
1340 
1341 	/* Set initial frequency. For PAL/SECAM broadcasts no
1342 	   'default' channel exists AFAIK. */
1343 	if (itv->std == V4L2_STD_NTSC_M_JP) {
1344 		vf.frequency = 1460;	/* ch. 1 91250*16/1000 */
1345 	}
1346 	else if (itv->std & V4L2_STD_NTSC_M) {
1347 		vf.frequency = 1076;	/* ch. 4 67250*16/1000 */
1348 	}
1349 
1350 	video_input = itv->active_input;
1351 	itv->active_input++;	/* Force update of input */
1352 	ivtv_s_input(NULL, &fh, video_input);
1353 
1354 	/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
1355 	   in one place. */
1356 	itv->std++;		/* Force full standard initialization */
1357 	itv->std_out = itv->std;
1358 	ivtv_s_frequency(NULL, &fh, &vf);
1359 
1360 	if (itv->card->v4l2_capabilities & V4L2_CAP_VIDEO_OUTPUT) {
1361 		/* Turn on the TV-out: ivtv_init_mpeg_decoder() initializes
1362 		   the mpeg decoder so now the saa7127 receives a proper
1363 		   signal. */
1364 		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 1);
1365 		ivtv_init_mpeg_decoder(itv);
1366 	}
1367 
1368 	/* On a cx23416 this seems to be able to enable DMA to the chip? */
1369 	if (!itv->has_cx23415)
1370 		write_reg_sync(0x03, IVTV_REG_DMACONTROL);
1371 
1372 	ivtv_s_std_enc(itv, itv->tuner_std);
1373 
1374 	/* Default interrupts enabled. For the PVR350 this includes the
1375 	   decoder VSYNC interrupt, which is always on. It is not only used
1376 	   during decoding but also by the OSD.
1377 	   Some old PVR250 cards had a cx23415, so testing for that is too
1378 	   general. Instead test if the card has video output capability. */
1379 	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
1380 		ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_INIT | IVTV_IRQ_DEC_VSYNC);
1381 		ivtv_set_osd_alpha(itv);
1382 		ivtv_s_std_dec(itv, itv->tuner_std);
1383 	} else {
1384 		ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_INIT);
1385 	}
1386 
1387 	/* Setup initial controls */
1388 	cx2341x_handler_setup(&itv->cxhdl);
1389 	return 0;
1390 }
1391 
1392 static void ivtv_remove(struct pci_dev *pdev)
1393 {
1394 	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
1395 	struct ivtv *itv = to_ivtv(v4l2_dev);
1396 	int i;
1397 
1398 	IVTV_DEBUG_INFO("Removing card\n");
1399 
1400 	flush_request_modules(itv);
1401 
1402 	if (test_bit(IVTV_F_I_INITED, &itv->i_flags)) {
1403 		/* Stop all captures */
1404 		IVTV_DEBUG_INFO("Stopping all streams\n");
1405 		if (atomic_read(&itv->capturing) > 0)
1406 			ivtv_stop_all_captures(itv);
1407 
1408 		/* Stop all decoding */
1409 		IVTV_DEBUG_INFO("Stopping decoding\n");
1410 
1411 		/* Turn off the TV-out */
1412 		if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
1413 			ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 0);
1414 		if (atomic_read(&itv->decoding) > 0) {
1415 			int type;
1416 
1417 			if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags))
1418 				type = IVTV_DEC_STREAM_TYPE_YUV;
1419 			else
1420 				type = IVTV_DEC_STREAM_TYPE_MPG;
1421 			ivtv_stop_v4l2_decode_stream(&itv->streams[type],
1422 				V4L2_DEC_CMD_STOP_TO_BLACK | V4L2_DEC_CMD_STOP_IMMEDIATELY, 0);
1423 		}
1424 		ivtv_halt_firmware(itv);
1425 	}
1426 
1427 	/* Interrupts */
1428 	ivtv_set_irq_mask(itv, 0xffffffff);
1429 	del_timer_sync(&itv->dma_timer);
1430 
1431 	/* Kill irq worker */
1432 	kthread_flush_worker(&itv->irq_worker);
1433 	kthread_stop(itv->irq_worker_task);
1434 
1435 	ivtv_streams_cleanup(itv);
1436 	ivtv_udma_free(itv);
1437 
1438 	v4l2_ctrl_handler_free(&itv->cxhdl.hdl);
1439 
1440 	exit_ivtv_i2c(itv);
1441 
1442 	free_irq(itv->pdev->irq, (void *)itv);
1443 	ivtv_iounmap(itv);
1444 
1445 	release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
1446 	release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1447 	if (itv->has_cx23415)
1448 		release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1449 
1450 	pci_disable_device(itv->pdev);
1451 	for (i = 0; i < IVTV_VBI_FRAMES; i++)
1452 		kfree(itv->vbi.sliced_mpeg_data[i]);
1453 
1454 	pr_info("Removed %s\n", itv->card_name);
1455 
1456 	v4l2_device_unregister(&itv->v4l2_dev);
1457 	kfree(itv);
1458 }
1459 
1460 /* define a pci_driver for card detection */
1461 static struct pci_driver ivtv_pci_driver = {
1462       .name =     "ivtv",
1463       .id_table = ivtv_pci_tbl,
1464       .probe =    ivtv_probe,
1465       .remove =   ivtv_remove,
1466 };
1467 
1468 static int __init module_start(void)
1469 {
1470 	pr_info("Start initialization, version %s\n", IVTV_VERSION);
1471 
1472 	/* Validate parameters */
1473 	if (ivtv_first_minor < 0 || ivtv_first_minor >= IVTV_MAX_CARDS) {
1474 		pr_err("Exiting, ivtv_first_minor must be between 0 and %d\n",
1475 		     IVTV_MAX_CARDS - 1);
1476 		return -1;
1477 	}
1478 
1479 	if (ivtv_debug < 0 || ivtv_debug > 2047) {
1480 		ivtv_debug = 0;
1481 		pr_info("Debug value must be >= 0 and <= 2047\n");
1482 	}
1483 
1484 	if (pci_register_driver(&ivtv_pci_driver)) {
1485 		pr_err("Error detecting PCI card\n");
1486 		return -ENODEV;
1487 	}
1488 	pr_info("End initialization\n");
1489 	return 0;
1490 }
1491 
1492 static void __exit module_cleanup(void)
1493 {
1494 	pci_unregister_driver(&ivtv_pci_driver);
1495 }
1496 
1497 /* Note: These symbols are exported because they are used by the ivtvfb
1498    framebuffer module and an infrared module for the IR-blaster. */
1499 EXPORT_SYMBOL(ivtv_set_irq_mask);
1500 EXPORT_SYMBOL(ivtv_api);
1501 EXPORT_SYMBOL(ivtv_vapi);
1502 EXPORT_SYMBOL(ivtv_vapi_result);
1503 EXPORT_SYMBOL(ivtv_clear_irq_mask);
1504 EXPORT_SYMBOL(ivtv_debug);
1505 #ifdef CONFIG_VIDEO_ADV_DEBUG
1506 EXPORT_SYMBOL(ivtv_fw_debug);
1507 #endif
1508 EXPORT_SYMBOL(ivtv_reset_ir_gpio);
1509 EXPORT_SYMBOL(ivtv_udma_setup);
1510 EXPORT_SYMBOL(ivtv_udma_unmap);
1511 EXPORT_SYMBOL(ivtv_udma_alloc);
1512 EXPORT_SYMBOL(ivtv_udma_prepare);
1513 EXPORT_SYMBOL(ivtv_init_on_first_open);
1514 EXPORT_SYMBOL(ivtv_firmware_check);
1515 
1516 module_init(module_start);
1517 module_exit(module_cleanup);
1518