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 
63 /* If you have already X v4l cards, then set this to X. This way
64    the device numbers stay matched. Example: you have a WinTV card
65    without radio and a PVR-350 with. Normally this would give a
66    video1 device together with a radio0 device for the PVR. By
67    setting this to 1 you ensure that radio0 is now also radio1. */
68 int ivtv_first_minor;
69 
70 /* Callback for registering extensions */
71 int (*ivtv_ext_init)(struct ivtv *);
72 EXPORT_SYMBOL(ivtv_ext_init);
73 
74 /* add your revision and whatnot here */
75 static struct pci_device_id ivtv_pci_tbl[] = {
76 	{PCI_VENDOR_ID_ICOMP, PCI_DEVICE_ID_IVTV15,
77 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
78 	{PCI_VENDOR_ID_ICOMP, PCI_DEVICE_ID_IVTV16,
79 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
80 	{0,}
81 };
82 
83 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
84 
85 /* ivtv instance counter */
86 static atomic_t ivtv_instance = ATOMIC_INIT(0);
87 
88 /* Parameter declarations */
89 static int cardtype[IVTV_MAX_CARDS];
90 static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
91 				     -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 static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
95 				     -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 static int i2c_clock_period[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
99 					       -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 
103 static unsigned int cardtype_c = 1;
104 static unsigned int tuner_c = 1;
105 static int radio_c = 1;
106 static unsigned int i2c_clock_period_c = 1;
107 static char pal[] = "---";
108 static char secam[] = "--";
109 static char ntsc[] = "-";
110 
111 /* Buffers */
112 
113 /* DMA Buffers, Default size in MB allocated */
114 #define IVTV_DEFAULT_ENC_MPG_BUFFERS 4
115 #define IVTV_DEFAULT_ENC_YUV_BUFFERS 2
116 #define IVTV_DEFAULT_ENC_VBI_BUFFERS 1
117 /* Exception: size in kB for this stream (MB is overkill) */
118 #define IVTV_DEFAULT_ENC_PCM_BUFFERS 320
119 #define IVTV_DEFAULT_DEC_MPG_BUFFERS 1
120 #define IVTV_DEFAULT_DEC_YUV_BUFFERS 1
121 /* Exception: size in kB for this stream (MB is way overkill) */
122 #define IVTV_DEFAULT_DEC_VBI_BUFFERS 64
123 
124 static int enc_mpg_buffers = IVTV_DEFAULT_ENC_MPG_BUFFERS;
125 static int enc_yuv_buffers = IVTV_DEFAULT_ENC_YUV_BUFFERS;
126 static int enc_vbi_buffers = IVTV_DEFAULT_ENC_VBI_BUFFERS;
127 static int enc_pcm_buffers = IVTV_DEFAULT_ENC_PCM_BUFFERS;
128 static int dec_mpg_buffers = IVTV_DEFAULT_DEC_MPG_BUFFERS;
129 static int dec_yuv_buffers = IVTV_DEFAULT_DEC_YUV_BUFFERS;
130 static int dec_vbi_buffers = IVTV_DEFAULT_DEC_VBI_BUFFERS;
131 
132 static int ivtv_yuv_mode;
133 static int ivtv_yuv_threshold = -1;
134 static int ivtv_pci_latency = 1;
135 
136 int ivtv_debug;
137 #ifdef CONFIG_VIDEO_ADV_DEBUG
138 int ivtv_fw_debug;
139 #endif
140 
141 static int tunertype = -1;
142 static int newi2c = -1;
143 
144 module_param_array(tuner, int, &tuner_c, 0644);
145 module_param_array(radio, int, &radio_c, 0644);
146 module_param_array(cardtype, int, &cardtype_c, 0644);
147 module_param_string(pal, pal, sizeof(pal), 0644);
148 module_param_string(secam, secam, sizeof(secam), 0644);
149 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
150 module_param_named(debug,ivtv_debug, int, 0644);
151 #ifdef CONFIG_VIDEO_ADV_DEBUG
152 module_param_named(fw_debug, ivtv_fw_debug, int, 0644);
153 #endif
154 module_param(ivtv_pci_latency, int, 0644);
155 module_param(ivtv_yuv_mode, int, 0644);
156 module_param(ivtv_yuv_threshold, int, 0644);
157 module_param(ivtv_first_minor, int, 0644);
158 
159 module_param(enc_mpg_buffers, int, 0644);
160 module_param(enc_yuv_buffers, int, 0644);
161 module_param(enc_vbi_buffers, int, 0644);
162 module_param(enc_pcm_buffers, int, 0644);
163 module_param(dec_mpg_buffers, int, 0644);
164 module_param(dec_yuv_buffers, int, 0644);
165 module_param(dec_vbi_buffers, int, 0644);
166 
167 module_param(tunertype, int, 0644);
168 module_param(newi2c, int, 0644);
169 module_param_array(i2c_clock_period, int, &i2c_clock_period_c, 0644);
170 
171 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
172 			"\t\t\tsee tuner.h for values");
173 MODULE_PARM_DESC(radio,
174 		 "Enable or disable the radio. Use only if autodetection\n"
175 		 "\t\t\tfails. 0 = disable, 1 = enable");
176 MODULE_PARM_DESC(cardtype,
177 		 "Only use this option if your card is not detected properly.\n"
178 		 "\t\tSpecify card type:\n"
179 		 "\t\t\t 1 = WinTV PVR 250\n"
180 		 "\t\t\t 2 = WinTV PVR 350\n"
181 		 "\t\t\t 3 = WinTV PVR-150 or PVR-500\n"
182 		 "\t\t\t 4 = AVerMedia M179\n"
183 		 "\t\t\t 5 = YUAN MPG600/Kuroutoshikou iTVC16-STVLP\n"
184 		 "\t\t\t 6 = YUAN MPG160/Kuroutoshikou iTVC15-STVLP\n"
185 		 "\t\t\t 7 = YUAN PG600/DIAMONDMM PVR-550 (CX Falcon 2)\n"
186 		 "\t\t\t 8 = Adaptec AVC-2410\n"
187 		 "\t\t\t 9 = Adaptec AVC-2010\n"
188 		 "\t\t\t10 = NAGASE TRANSGEAR 5000TV\n"
189 		 "\t\t\t11 = AOpen VA2000MAX-STN6\n"
190 		 "\t\t\t12 = YUAN MPG600GR/Kuroutoshikou CX23416GYC-STVLP\n"
191 		 "\t\t\t13 = I/O Data GV-MVP/RX\n"
192 		 "\t\t\t14 = I/O Data GV-MVP/RX2E\n"
193 		 "\t\t\t15 = GOTVIEW PCI DVD\n"
194 		 "\t\t\t16 = GOTVIEW PCI DVD2 Deluxe\n"
195 		 "\t\t\t17 = Yuan MPC622\n"
196 		 "\t\t\t18 = Digital Cowboy DCT-MTVP1\n"
197 		 "\t\t\t19 = Yuan PG600V2/GotView PCI DVD Lite\n"
198 		 "\t\t\t20 = Club3D ZAP-TV1x01\n"
199 		 "\t\t\t21 = AverTV MCE 116 Plus\n"
200 		 "\t\t\t22 = ASUS Falcon2\n"
201 		 "\t\t\t23 = AverMedia PVR-150 Plus\n"
202 		 "\t\t\t24 = AverMedia EZMaker PCI Deluxe\n"
203 		 "\t\t\t25 = AverMedia M104 (not yet working)\n"
204 		 "\t\t\t26 = Buffalo PC-MV5L/PCI\n"
205 		 "\t\t\t27 = AVerMedia UltraTV 1500 MCE\n"
206 		 "\t\t\t28 = Sony VAIO Giga Pocket (ENX Kikyou)\n"
207 		 "\t\t\t 0 = Autodetect (default)\n"
208 		 "\t\t\t-1 = Ignore this card\n\t\t");
209 MODULE_PARM_DESC(pal, "Set PAL standard: BGH, DK, I, M, N, Nc, 60");
210 MODULE_PARM_DESC(secam, "Set SECAM standard: BGH, DK, L, LC");
211 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J (Japan), K (South Korea)");
212 MODULE_PARM_DESC(tunertype,
213 		"Specify tuner type:\n"
214 		"\t\t\t 0 = tuner for PAL-B/G/H/D/K/I, SECAM-B/G/H/D/K/L/Lc\n"
215 		"\t\t\t 1 = tuner for NTSC-M/J/K, PAL-M/N/Nc\n"
216 		"\t\t\t-1 = Autodetect (default)\n");
217 MODULE_PARM_DESC(debug,
218 		 "Debug level (bitmask). Default: 0\n"
219 		 "\t\t\t   1/0x0001: warning\n"
220 		 "\t\t\t   2/0x0002: info\n"
221 		 "\t\t\t   4/0x0004: mailbox\n"
222 		 "\t\t\t   8/0x0008: ioctl\n"
223 		 "\t\t\t  16/0x0010: file\n"
224 		 "\t\t\t  32/0x0020: dma\n"
225 		 "\t\t\t  64/0x0040: irq\n"
226 		 "\t\t\t 128/0x0080: decoder\n"
227 		 "\t\t\t 256/0x0100: yuv\n"
228 		 "\t\t\t 512/0x0200: i2c\n"
229 		 "\t\t\t1024/0x0400: high volume\n");
230 #ifdef CONFIG_VIDEO_ADV_DEBUG
231 MODULE_PARM_DESC(fw_debug,
232 		 "Enable code for debugging firmware problems.  Default: 0\n");
233 #endif
234 MODULE_PARM_DESC(ivtv_pci_latency,
235 		 "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
236 		 "\t\t\tDefault: Yes");
237 MODULE_PARM_DESC(ivtv_yuv_mode,
238 		 "Specify the yuv playback mode:\n"
239 		 "\t\t\t0 = interlaced\n\t\t\t1 = progressive\n\t\t\t2 = auto\n"
240 		 "\t\t\tDefault: 0 (interlaced)");
241 MODULE_PARM_DESC(ivtv_yuv_threshold,
242 		 "If ivtv_yuv_mode is 2 (auto) then playback content as\n\t\tprogressive if src height <= ivtv_yuvthreshold\n"
243 		 "\t\t\tDefault: 480");
244 MODULE_PARM_DESC(enc_mpg_buffers,
245 		 "Encoder MPG Buffers (in MB)\n"
246 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_MPG_BUFFERS));
247 MODULE_PARM_DESC(enc_yuv_buffers,
248 		 "Encoder YUV Buffers (in MB)\n"
249 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_YUV_BUFFERS));
250 MODULE_PARM_DESC(enc_vbi_buffers,
251 		 "Encoder VBI Buffers (in MB)\n"
252 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_VBI_BUFFERS));
253 MODULE_PARM_DESC(enc_pcm_buffers,
254 		 "Encoder PCM buffers (in kB)\n"
255 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_ENC_PCM_BUFFERS));
256 MODULE_PARM_DESC(dec_mpg_buffers,
257 		 "Decoder MPG buffers (in MB)\n"
258 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_MPG_BUFFERS));
259 MODULE_PARM_DESC(dec_yuv_buffers,
260 		 "Decoder YUV buffers (in MB)\n"
261 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_YUV_BUFFERS));
262 MODULE_PARM_DESC(dec_vbi_buffers,
263 		 "Decoder VBI buffers (in kB)\n"
264 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_DEC_VBI_BUFFERS));
265 MODULE_PARM_DESC(newi2c,
266 		 "Use new I2C implementation\n"
267 		 "\t\t\t-1 is autodetect, 0 is off, 1 is on\n"
268 		 "\t\t\tDefault is autodetect");
269 MODULE_PARM_DESC(i2c_clock_period,
270 		 "Period of SCL for the I2C bus controlled by the CX23415/6\n"
271 		 "\t\t\tMin: 10 usec (100 kHz), Max: 4500 usec (222 Hz)\n"
272 		 "\t\t\tDefault: " __stringify(IVTV_DEFAULT_I2C_CLOCK_PERIOD));
273 
274 MODULE_PARM_DESC(ivtv_first_minor, "Set device node number assigned to first card");
275 
276 MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
277 MODULE_DESCRIPTION("CX23415/CX23416 driver");
278 MODULE_SUPPORTED_DEVICE
279     ("CX23415/CX23416 MPEG2 encoder (WinTV PVR-150/250/350/500,\n"
280 		"\t\t\tYuan MPG series and similar)");
281 MODULE_LICENSE("GPL");
282 
283 MODULE_VERSION(IVTV_VERSION);
284 
285 #if defined(CONFIG_MODULES) && defined(MODULE)
286 static void request_module_async(struct work_struct *work)
287 {
288 	struct ivtv *dev = container_of(work, struct ivtv, request_module_wk);
289 
290 	/* Make sure ivtv-alsa module is loaded */
291 	request_module("ivtv-alsa");
292 
293 	/* Initialize ivtv-alsa for this instance of the cx18 device */
294 	if (ivtv_ext_init != NULL)
295 		ivtv_ext_init(dev);
296 }
297 
298 static void request_modules(struct ivtv *dev)
299 {
300 	INIT_WORK(&dev->request_module_wk, request_module_async);
301 	schedule_work(&dev->request_module_wk);
302 }
303 
304 static void flush_request_modules(struct ivtv *dev)
305 {
306 	flush_work(&dev->request_module_wk);
307 }
308 #else
309 #define request_modules(dev)
310 #define flush_request_modules(dev)
311 #endif /* CONFIG_MODULES */
312 
313 void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask)
314 {
315 	itv->irqmask &= ~mask;
316 	write_reg_sync(itv->irqmask, IVTV_REG_IRQMASK);
317 }
318 
319 void ivtv_set_irq_mask(struct ivtv *itv, u32 mask)
320 {
321 	itv->irqmask |= mask;
322 	write_reg_sync(itv->irqmask, IVTV_REG_IRQMASK);
323 }
324 
325 int ivtv_set_output_mode(struct ivtv *itv, int mode)
326 {
327     int old_mode;
328 
329     spin_lock(&itv->lock);
330     old_mode = itv->output_mode;
331     if (old_mode == 0)
332 	itv->output_mode = old_mode = mode;
333     spin_unlock(&itv->lock);
334     return old_mode;
335 }
336 
337 struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv)
338 {
339 	switch (itv->output_mode) {
340 	case OUT_MPG:
341 		return &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];
342 	case OUT_YUV:
343 		return &itv->streams[IVTV_DEC_STREAM_TYPE_YUV];
344 	default:
345 		return NULL;
346 	}
347 }
348 
349 int ivtv_waitq(wait_queue_head_t *waitq)
350 {
351 	DEFINE_WAIT(wait);
352 
353 	prepare_to_wait(waitq, &wait, TASK_INTERRUPTIBLE);
354 	schedule();
355 	finish_wait(waitq, &wait);
356 	return signal_pending(current) ? -EINTR : 0;
357 }
358 
359 /* Generic utility functions */
360 int ivtv_msleep_timeout(unsigned int msecs, int intr)
361 {
362 	int timeout = msecs_to_jiffies(msecs);
363 
364 	do {
365 		set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
366 		timeout = schedule_timeout(timeout);
367 		if (intr) {
368 			int ret = signal_pending(current);
369 
370 			if (ret)
371 				return ret;
372 		}
373 	} while (timeout);
374 	return 0;
375 }
376 
377 /* Release ioremapped memory */
378 static void ivtv_iounmap(struct ivtv *itv)
379 {
380 	if (itv == NULL)
381 		return;
382 
383 	/* Release registers memory */
384 	if (itv->reg_mem != NULL) {
385 		IVTV_DEBUG_INFO("releasing reg_mem\n");
386 		iounmap(itv->reg_mem);
387 		itv->reg_mem = NULL;
388 	}
389 	/* Release io memory */
390 	if (itv->has_cx23415 && itv->dec_mem != NULL) {
391 		IVTV_DEBUG_INFO("releasing dec_mem\n");
392 		iounmap(itv->dec_mem);
393 	}
394 	itv->dec_mem = NULL;
395 
396 	/* Release io memory */
397 	if (itv->enc_mem != NULL) {
398 		IVTV_DEBUG_INFO("releasing enc_mem\n");
399 		iounmap(itv->enc_mem);
400 		itv->enc_mem = NULL;
401 	}
402 }
403 
404 /* Hauppauge card? get values from tveeprom */
405 void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv)
406 {
407 	u8 eedata[256];
408 
409 	itv->i2c_client.addr = 0xA0 >> 1;
410 	tveeprom_read(&itv->i2c_client, eedata, sizeof(eedata));
411 	tveeprom_hauppauge_analog(&itv->i2c_client, tv, eedata);
412 }
413 
414 static void ivtv_process_eeprom(struct ivtv *itv)
415 {
416 	struct tveeprom tv;
417 	int pci_slot = PCI_SLOT(itv->pdev->devfn);
418 
419 	ivtv_read_eeprom(itv, &tv);
420 
421 	/* Many thanks to Steven Toth from Hauppauge for providing the
422 	   model numbers */
423 	switch (tv.model) {
424 		/* In a few cases the PCI subsystem IDs do not correctly
425 		   identify the card. A better method is to check the
426 		   model number from the eeprom instead. */
427 		case 30012 ... 30039:  /* Low profile PVR250 */
428 		case 32000 ... 32999:
429 		case 48000 ... 48099:  /* 48??? range are PVR250s with a cx23415 */
430 		case 48400 ... 48599:
431 			itv->card = ivtv_get_card(IVTV_CARD_PVR_250);
432 			break;
433 		case 48100 ... 48399:
434 		case 48600 ... 48999:
435 			itv->card = ivtv_get_card(IVTV_CARD_PVR_350);
436 			break;
437 		case 23000 ... 23999:  /* PVR500 */
438 		case 25000 ... 25999:  /* Low profile PVR150 */
439 		case 26000 ... 26999:  /* Regular PVR150 */
440 			itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
441 			break;
442 		case 0:
443 			IVTV_ERR("Invalid EEPROM\n");
444 			return;
445 		default:
446 			IVTV_ERR("Unknown model %d, defaulting to PVR-150\n", tv.model);
447 			itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
448 			break;
449 	}
450 
451 	switch (tv.model) {
452 		/* Old style PVR350 (with an saa7114) uses this input for
453 		   the tuner. */
454 		case 48254:
455 			itv->card = ivtv_get_card(IVTV_CARD_PVR_350_V1);
456 			break;
457 		default:
458 			break;
459 	}
460 
461 	itv->v4l2_cap = itv->card->v4l2_capabilities;
462 	itv->card_name = itv->card->name;
463 	itv->card_i2c = itv->card->i2c;
464 
465 	/* If this is a PVR500 then it should be possible to detect whether it is the
466 	   first or second unit by looking at the subsystem device ID: is bit 4 is
467 	   set, then it is the second unit (according to info from Hauppauge).
468 
469 	   However, while this works for most cards, I have seen a few PVR500 cards
470 	   where both units have the same subsystem ID.
471 
472 	   So instead I look at the reported 'PCI slot' (which is the slot on the PVR500
473 	   PCI bridge) and if it is 8, then it is assumed to be the first unit, otherwise
474 	   it is the second unit. It is possible that it is a different slot when ivtv is
475 	   used in Xen, in that case I ignore this card here. The worst that can happen
476 	   is that the card presents itself with a non-working radio device.
477 
478 	   This detection is needed since the eeprom reports incorrectly that a radio is
479 	   present on the second unit. */
480 	if (tv.model / 1000 == 23) {
481 		static const struct ivtv_card_tuner_i2c ivtv_i2c_radio = {
482 			.radio = { 0x60, I2C_CLIENT_END },
483 			.demod = { 0x43, I2C_CLIENT_END },
484 			.tv = { 0x61, I2C_CLIENT_END },
485 		};
486 
487 		itv->card_name = "WinTV PVR 500";
488 		itv->card_i2c = &ivtv_i2c_radio;
489 		if (pci_slot == 8 || pci_slot == 9) {
490 			int is_first = (pci_slot & 1) == 0;
491 
492 			itv->card_name = is_first ? "WinTV PVR 500 (unit #1)" :
493 						    "WinTV PVR 500 (unit #2)";
494 			if (!is_first) {
495 				IVTV_INFO("Correcting tveeprom data: no radio present on second unit\n");
496 				tv.has_radio = 0;
497 			}
498 		}
499 	}
500 	IVTV_INFO("Autodetected %s\n", itv->card_name);
501 
502 	switch (tv.tuner_hauppauge_model) {
503 		case 85:
504 		case 99:
505 		case 112:
506 			itv->pvr150_workaround = 1;
507 			break;
508 		default:
509 			break;
510 	}
511 	if (tv.tuner_type == TUNER_ABSENT)
512 		IVTV_ERR("tveeprom cannot autodetect tuner!\n");
513 
514 	if (itv->options.tuner == -1)
515 		itv->options.tuner = tv.tuner_type;
516 	if (itv->options.radio == -1)
517 		itv->options.radio = (tv.has_radio != 0);
518 	/* only enable newi2c if an IR blaster is present */
519 	if (itv->options.newi2c == -1 && tv.has_ir) {
520 		itv->options.newi2c = (tv.has_ir & 4) ? 1 : 0;
521 		if (itv->options.newi2c) {
522 		    IVTV_INFO("Reopen i2c bus for IR-blaster support\n");
523 		    exit_ivtv_i2c(itv);
524 		    init_ivtv_i2c(itv);
525 		}
526 	}
527 
528 	if (itv->std != 0)
529 		/* user specified tuner standard */
530 		return;
531 
532 	/* autodetect tuner standard */
533 	if (tv.tuner_formats & V4L2_STD_PAL) {
534 		IVTV_DEBUG_INFO("PAL tuner detected\n");
535 		itv->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
536 	} else if (tv.tuner_formats & V4L2_STD_NTSC) {
537 		IVTV_DEBUG_INFO("NTSC tuner detected\n");
538 		itv->std |= V4L2_STD_NTSC_M;
539 	} else if (tv.tuner_formats & V4L2_STD_SECAM) {
540 		IVTV_DEBUG_INFO("SECAM tuner detected\n");
541 		itv->std |= V4L2_STD_SECAM_L;
542 	} else {
543 		IVTV_INFO("No tuner detected, default to NTSC-M\n");
544 		itv->std |= V4L2_STD_NTSC_M;
545 	}
546 }
547 
548 static v4l2_std_id ivtv_parse_std(struct ivtv *itv)
549 {
550 	switch (pal[0]) {
551 		case '6':
552 			tunertype = 0;
553 			return V4L2_STD_PAL_60;
554 		case 'b':
555 		case 'B':
556 		case 'g':
557 		case 'G':
558 		case 'h':
559 		case 'H':
560 			tunertype = 0;
561 			return V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
562 		case 'n':
563 		case 'N':
564 			tunertype = 1;
565 			if (pal[1] == 'c' || pal[1] == 'C')
566 				return V4L2_STD_PAL_Nc;
567 			return V4L2_STD_PAL_N;
568 		case 'i':
569 		case 'I':
570 			tunertype = 0;
571 			return V4L2_STD_PAL_I;
572 		case 'd':
573 		case 'D':
574 		case 'k':
575 		case 'K':
576 			tunertype = 0;
577 			return V4L2_STD_PAL_DK;
578 		case 'M':
579 		case 'm':
580 			tunertype = 1;
581 			return V4L2_STD_PAL_M;
582 		case '-':
583 			break;
584 		default:
585 			IVTV_WARN("pal= argument not recognised\n");
586 			return 0;
587 	}
588 
589 	switch (secam[0]) {
590 		case 'b':
591 		case 'B':
592 		case 'g':
593 		case 'G':
594 		case 'h':
595 		case 'H':
596 			tunertype = 0;
597 			return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
598 		case 'd':
599 		case 'D':
600 		case 'k':
601 		case 'K':
602 			tunertype = 0;
603 			return V4L2_STD_SECAM_DK;
604 		case 'l':
605 		case 'L':
606 			tunertype = 0;
607 			if (secam[1] == 'C' || secam[1] == 'c')
608 				return V4L2_STD_SECAM_LC;
609 			return V4L2_STD_SECAM_L;
610 		case '-':
611 			break;
612 		default:
613 			IVTV_WARN("secam= argument not recognised\n");
614 			return 0;
615 	}
616 
617 	switch (ntsc[0]) {
618 		case 'm':
619 		case 'M':
620 			tunertype = 1;
621 			return V4L2_STD_NTSC_M;
622 		case 'j':
623 		case 'J':
624 			tunertype = 1;
625 			return V4L2_STD_NTSC_M_JP;
626 		case 'k':
627 		case 'K':
628 			tunertype = 1;
629 			return V4L2_STD_NTSC_M_KR;
630 		case '-':
631 			break;
632 		default:
633 			IVTV_WARN("ntsc= argument not recognised\n");
634 			return 0;
635 	}
636 
637 	/* no match found */
638 	return 0;
639 }
640 
641 static void ivtv_process_options(struct ivtv *itv)
642 {
643 	const char *chipname;
644 	int i, j;
645 
646 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers * 1024;
647 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers * 1024;
648 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers * 1024;
649 	itv->options.kilobytes[IVTV_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
650 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_MPG] = dec_mpg_buffers * 1024;
651 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_YUV] = dec_yuv_buffers * 1024;
652 	itv->options.kilobytes[IVTV_DEC_STREAM_TYPE_VBI] = dec_vbi_buffers;
653 	itv->options.cardtype = cardtype[itv->instance];
654 	itv->options.tuner = tuner[itv->instance];
655 	itv->options.radio = radio[itv->instance];
656 
657 	itv->options.i2c_clock_period = i2c_clock_period[itv->instance];
658 	if (itv->options.i2c_clock_period == -1)
659 		itv->options.i2c_clock_period = IVTV_DEFAULT_I2C_CLOCK_PERIOD;
660 	else if (itv->options.i2c_clock_period < 10)
661 		itv->options.i2c_clock_period = 10;
662 	else if (itv->options.i2c_clock_period > 4500)
663 		itv->options.i2c_clock_period = 4500;
664 
665 	itv->options.newi2c = newi2c;
666 	if (tunertype < -1 || tunertype > 1) {
667 		IVTV_WARN("Invalid tunertype argument, will autodetect instead\n");
668 		tunertype = -1;
669 	}
670 	itv->std = ivtv_parse_std(itv);
671 	if (itv->std == 0 && tunertype >= 0)
672 		itv->std = tunertype ? V4L2_STD_MN : (V4L2_STD_ALL & ~V4L2_STD_MN);
673 	itv->has_cx23415 = (itv->pdev->device == PCI_DEVICE_ID_IVTV15);
674 	chipname = itv->has_cx23415 ? "cx23415" : "cx23416";
675 	if (itv->options.cardtype == -1) {
676 		IVTV_INFO("Ignore card (detected %s based chip)\n", chipname);
677 		return;
678 	}
679 	if ((itv->card = ivtv_get_card(itv->options.cardtype - 1))) {
680 		IVTV_INFO("User specified %s card (detected %s based chip)\n",
681 				itv->card->name, chipname);
682 	} else if (itv->options.cardtype != 0) {
683 		IVTV_ERR("Unknown user specified type, trying to autodetect card\n");
684 	}
685 	if (itv->card == NULL) {
686 		if (itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE ||
687 		    itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE_ALT1 ||
688 		    itv->pdev->subsystem_vendor == IVTV_PCI_ID_HAUPPAUGE_ALT2) {
689 			itv->card = ivtv_get_card(itv->has_cx23415 ? IVTV_CARD_PVR_350 : IVTV_CARD_PVR_150);
690 			IVTV_INFO("Autodetected Hauppauge card (%s based)\n",
691 					chipname);
692 		}
693 	}
694 	if (itv->card == NULL) {
695 		for (i = 0; (itv->card = ivtv_get_card(i)); i++) {
696 			if (itv->card->pci_list == NULL)
697 				continue;
698 			for (j = 0; itv->card->pci_list[j].device; j++) {
699 				if (itv->pdev->device !=
700 				    itv->card->pci_list[j].device)
701 					continue;
702 				if (itv->pdev->subsystem_vendor !=
703 				    itv->card->pci_list[j].subsystem_vendor)
704 					continue;
705 				if (itv->pdev->subsystem_device !=
706 				    itv->card->pci_list[j].subsystem_device)
707 					continue;
708 				IVTV_INFO("Autodetected %s card (%s based)\n",
709 						itv->card->name, chipname);
710 				goto done;
711 			}
712 		}
713 	}
714 done:
715 
716 	if (itv->card == NULL) {
717 		itv->card = ivtv_get_card(IVTV_CARD_PVR_150);
718 		IVTV_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
719 		     itv->pdev->vendor, itv->pdev->device);
720 		IVTV_ERR("              subsystem vendor/device: [%04x:%04x]\n",
721 		     itv->pdev->subsystem_vendor, itv->pdev->subsystem_device);
722 		IVTV_ERR("              %s based\n", chipname);
723 		IVTV_ERR("Defaulting to %s card\n", itv->card->name);
724 		IVTV_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
725 		IVTV_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
726 		IVTV_ERR("Prefix your subject line with [UNKNOWN IVTV CARD].\n");
727 	}
728 	itv->v4l2_cap = itv->card->v4l2_capabilities;
729 	itv->card_name = itv->card->name;
730 	itv->card_i2c = itv->card->i2c;
731 }
732 
733 /* Precondition: the ivtv structure has been memset to 0. Only
734    the dev and num fields have been filled in.
735    No assumptions on the card type may be made here (see ivtv_init_struct2
736    for that).
737  */
738 static int ivtv_init_struct1(struct ivtv *itv)
739 {
740 	struct sched_param param = { .sched_priority = 99 };
741 
742 	itv->base_addr = pci_resource_start(itv->pdev, 0);
743 	itv->enc_mbox.max_mbox = 2; /* the encoder has 3 mailboxes (0-2) */
744 	itv->dec_mbox.max_mbox = 1; /* the decoder has 2 mailboxes (0-1) */
745 
746 	mutex_init(&itv->serialize_lock);
747 	mutex_init(&itv->i2c_bus_lock);
748 	mutex_init(&itv->udma.lock);
749 
750 	spin_lock_init(&itv->lock);
751 	spin_lock_init(&itv->dma_reg_lock);
752 
753 	kthread_init_worker(&itv->irq_worker);
754 	itv->irq_worker_task = kthread_run(kthread_worker_fn, &itv->irq_worker,
755 					   "%s", itv->v4l2_dev.name);
756 	if (IS_ERR(itv->irq_worker_task)) {
757 		IVTV_ERR("Could not create ivtv task\n");
758 		return -1;
759 	}
760 	/* must use the FIFO scheduler as it is realtime sensitive */
761 	sched_setscheduler(itv->irq_worker_task, SCHED_FIFO, &param);
762 
763 	kthread_init_work(&itv->irq_work, ivtv_irq_work_handler);
764 
765 	/* Initial settings */
766 	itv->cxhdl.port = CX2341X_PORT_MEMORY;
767 	itv->cxhdl.capabilities = CX2341X_CAP_HAS_SLICED_VBI;
768 	init_waitqueue_head(&itv->eos_waitq);
769 	init_waitqueue_head(&itv->event_waitq);
770 	init_waitqueue_head(&itv->vsync_waitq);
771 	init_waitqueue_head(&itv->dma_waitq);
772 	init_timer(&itv->dma_timer);
773 	itv->dma_timer.function = ivtv_unfinished_dma;
774 	itv->dma_timer.data = (unsigned long)itv;
775 
776 	itv->cur_dma_stream = -1;
777 	itv->cur_pio_stream = -1;
778 
779 	/* Ctrls */
780 	itv->speed = 1000;
781 
782 	/* VBI */
783 	itv->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
784 	itv->vbi.sliced_in = &itv->vbi.in.fmt.sliced;
785 
786 	/* Init the sg table for osd/yuv output */
787 	sg_init_table(itv->udma.SGlist, IVTV_DMA_SG_OSD_ENT);
788 
789 	/* OSD */
790 	itv->osd_global_alpha_state = 1;
791 	itv->osd_global_alpha = 255;
792 
793 	/* YUV */
794 	atomic_set(&itv->yuv_info.next_dma_frame, -1);
795 	itv->yuv_info.lace_mode = ivtv_yuv_mode;
796 	itv->yuv_info.lace_threshold = ivtv_yuv_threshold;
797 	itv->yuv_info.max_frames_buffered = 3;
798 	itv->yuv_info.track_osd = 1;
799 	return 0;
800 }
801 
802 /* Second initialization part. Here the card type has been
803    autodetected. */
804 static void ivtv_init_struct2(struct ivtv *itv)
805 {
806 	int i;
807 
808 	for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS; i++)
809 		if (itv->card->video_inputs[i].video_type == 0)
810 			break;
811 	itv->nof_inputs = i;
812 	for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS; i++)
813 		if (itv->card->audio_inputs[i].audio_type == 0)
814 			break;
815 	itv->nof_audio_inputs = i;
816 
817 	if (itv->card->hw_all & IVTV_HW_CX25840) {
818 		itv->vbi.sliced_size = 288;  /* multiple of 16, real size = 284 */
819 	} else {
820 		itv->vbi.sliced_size = 64;   /* multiple of 16, real size = 52 */
821 	}
822 
823 	/* Find tuner input */
824 	for (i = 0; i < itv->nof_inputs; i++) {
825 		if (itv->card->video_inputs[i].video_type ==
826 				IVTV_CARD_INPUT_VID_TUNER)
827 			break;
828 	}
829 	if (i >= itv->nof_inputs)
830 		i = 0;
831 	itv->active_input = i;
832 	itv->audio_input = itv->card->video_inputs[i].audio_index;
833 }
834 
835 static int ivtv_setup_pci(struct ivtv *itv, struct pci_dev *pdev,
836 			  const struct pci_device_id *pci_id)
837 {
838 	u16 cmd;
839 	unsigned char pci_latency;
840 
841 	IVTV_DEBUG_INFO("Enabling pci device\n");
842 
843 	if (pci_enable_device(pdev)) {
844 		IVTV_ERR("Can't enable device!\n");
845 		return -EIO;
846 	}
847 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
848 		IVTV_ERR("No suitable DMA available.\n");
849 		return -EIO;
850 	}
851 	if (!request_mem_region(itv->base_addr, IVTV_ENCODER_SIZE, "ivtv encoder")) {
852 		IVTV_ERR("Cannot request encoder memory region.\n");
853 		return -EIO;
854 	}
855 
856 	if (!request_mem_region(itv->base_addr + IVTV_REG_OFFSET,
857 				IVTV_REG_SIZE, "ivtv registers")) {
858 		IVTV_ERR("Cannot request register memory region.\n");
859 		release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
860 		return -EIO;
861 	}
862 
863 	if (itv->has_cx23415 &&
864 	    !request_mem_region(itv->base_addr + IVTV_DECODER_OFFSET,
865 				IVTV_DECODER_SIZE, "ivtv decoder")) {
866 		IVTV_ERR("Cannot request decoder memory region.\n");
867 		release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
868 		release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
869 		return -EIO;
870 	}
871 
872 	/* Check for bus mastering */
873 	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
874 	if (!(cmd & PCI_COMMAND_MASTER)) {
875 		IVTV_DEBUG_INFO("Attempting to enable Bus Mastering\n");
876 		pci_set_master(pdev);
877 		pci_read_config_word(pdev, PCI_COMMAND, &cmd);
878 		if (!(cmd & PCI_COMMAND_MASTER)) {
879 			IVTV_ERR("Bus Mastering is not enabled\n");
880 			return -ENXIO;
881 		}
882 	}
883 	IVTV_DEBUG_INFO("Bus Mastering Enabled.\n");
884 
885 	pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
886 
887 	if (pci_latency < 64 && ivtv_pci_latency) {
888 		IVTV_INFO("Unreasonably low latency timer, setting to 64 (was %d)\n",
889 			  pci_latency);
890 		pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
891 		pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency);
892 	}
893 	/* This config space value relates to DMA latencies. The
894 	   default value 0x8080 is too low however and will lead
895 	   to DMA errors. 0xffff is the max value which solves
896 	   these problems. */
897 	pci_write_config_dword(pdev, 0x40, 0xffff);
898 
899 	IVTV_DEBUG_INFO("%d (rev %d) at %02x:%02x.%x, irq: %d, latency: %d, memory: 0x%llx\n",
900 		   pdev->device, pdev->revision, pdev->bus->number,
901 		   PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn),
902 		   pdev->irq, pci_latency, (u64)itv->base_addr);
903 
904 	return 0;
905 }
906 
907 static void ivtv_load_and_init_modules(struct ivtv *itv)
908 {
909 	u32 hw = itv->card->hw_all;
910 	unsigned i;
911 
912 	/* check which i2c devices are actually found */
913 	for (i = 0; i < 32; i++) {
914 		u32 device = 1 << i;
915 
916 		if (!(device & hw))
917 			continue;
918 		if (device == IVTV_HW_GPIO || device == IVTV_HW_TVEEPROM) {
919 			/* GPIO and TVEEPROM do not use i2c probing */
920 			itv->hw_flags |= device;
921 			continue;
922 		}
923 		if (ivtv_i2c_register(itv, i) == 0)
924 			itv->hw_flags |= device;
925 	}
926 
927 	/* probe for legacy IR controllers that aren't in card definitions */
928 	if ((itv->hw_flags & IVTV_HW_IR_ANY) == 0)
929 		ivtv_i2c_new_ir_legacy(itv);
930 
931 	if (itv->card->hw_all & IVTV_HW_CX25840)
932 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_CX25840);
933 	else if (itv->card->hw_all & IVTV_HW_SAA717X)
934 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA717X);
935 	else if (itv->card->hw_all & IVTV_HW_SAA7114)
936 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA7114);
937 	else
938 		itv->sd_video = ivtv_find_hw(itv, IVTV_HW_SAA7115);
939 	itv->sd_audio = ivtv_find_hw(itv, itv->card->hw_audio_ctrl);
940 	itv->sd_muxer = ivtv_find_hw(itv, itv->card->hw_muxer);
941 
942 	hw = itv->hw_flags;
943 
944 	if (itv->card->type == IVTV_CARD_CX23416GYC) {
945 		/* Several variations of this card exist, detect which card
946 		   type should be used. */
947 		if ((hw & (IVTV_HW_UPD64031A | IVTV_HW_UPD6408X)) == 0)
948 			itv->card = ivtv_get_card(IVTV_CARD_CX23416GYC_NOGRYCS);
949 		else if ((hw & IVTV_HW_UPD64031A) == 0)
950 			itv->card = ivtv_get_card(IVTV_CARD_CX23416GYC_NOGR);
951 	}
952 	else if (itv->card->type == IVTV_CARD_GV_MVPRX ||
953 		 itv->card->type == IVTV_CARD_GV_MVPRX2E) {
954 		/* The crystal frequency of GVMVPRX is 24.576MHz */
955 		v4l2_subdev_call(itv->sd_video, video, s_crystal_freq,
956 			SAA7115_FREQ_24_576_MHZ, SAA7115_FREQ_FL_UCGC);
957 	}
958 
959 	if (hw & IVTV_HW_CX25840) {
960 		itv->vbi.raw_decoder_line_size = 1444;
961 		itv->vbi.raw_decoder_sav_odd_field = 0x20;
962 		itv->vbi.raw_decoder_sav_even_field = 0x60;
963 		itv->vbi.sliced_decoder_line_size = 272;
964 		itv->vbi.sliced_decoder_sav_odd_field = 0xB0;
965 		itv->vbi.sliced_decoder_sav_even_field = 0xF0;
966 	}
967 
968 	if (hw & IVTV_HW_SAA711X) {
969 		/* determine the exact saa711x model */
970 		itv->hw_flags &= ~IVTV_HW_SAA711X;
971 
972 		if (strstr(itv->sd_video->name, "saa7114")) {
973 			itv->hw_flags |= IVTV_HW_SAA7114;
974 			/* VBI is not yet supported by the saa7114 driver. */
975 			itv->v4l2_cap &= ~(V4L2_CAP_SLICED_VBI_CAPTURE|V4L2_CAP_VBI_CAPTURE);
976 		} else {
977 			itv->hw_flags |= IVTV_HW_SAA7115;
978 		}
979 		itv->vbi.raw_decoder_line_size = 1443;
980 		itv->vbi.raw_decoder_sav_odd_field = 0x25;
981 		itv->vbi.raw_decoder_sav_even_field = 0x62;
982 		itv->vbi.sliced_decoder_line_size = 51;
983 		itv->vbi.sliced_decoder_sav_odd_field = 0xAB;
984 		itv->vbi.sliced_decoder_sav_even_field = 0xEC;
985 	}
986 
987 	if (hw & IVTV_HW_SAA717X) {
988 		itv->vbi.raw_decoder_line_size = 1443;
989 		itv->vbi.raw_decoder_sav_odd_field = 0x25;
990 		itv->vbi.raw_decoder_sav_even_field = 0x62;
991 		itv->vbi.sliced_decoder_line_size = 51;
992 		itv->vbi.sliced_decoder_sav_odd_field = 0xAB;
993 		itv->vbi.sliced_decoder_sav_even_field = 0xEC;
994 	}
995 }
996 
997 static int ivtv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
998 {
999 	int retval = 0;
1000 	int vbi_buf_size;
1001 	struct ivtv *itv;
1002 
1003 	itv = kzalloc(sizeof(struct ivtv), GFP_ATOMIC);
1004 	if (itv == NULL)
1005 		return -ENOMEM;
1006 	itv->pdev = pdev;
1007 	itv->instance = v4l2_device_set_name(&itv->v4l2_dev, "ivtv",
1008 						&ivtv_instance);
1009 
1010 	retval = v4l2_device_register(&pdev->dev, &itv->v4l2_dev);
1011 	if (retval) {
1012 		kfree(itv);
1013 		return retval;
1014 	}
1015 	IVTV_INFO("Initializing card %d\n", itv->instance);
1016 
1017 	ivtv_process_options(itv);
1018 	if (itv->options.cardtype == -1) {
1019 		retval = -ENODEV;
1020 		goto err;
1021 	}
1022 	if (ivtv_init_struct1(itv)) {
1023 		retval = -ENOMEM;
1024 		goto err;
1025 	}
1026 	retval = cx2341x_handler_init(&itv->cxhdl, 50);
1027 	if (retval)
1028 		goto err;
1029 	itv->v4l2_dev.ctrl_handler = &itv->cxhdl.hdl;
1030 	itv->cxhdl.ops = &ivtv_cxhdl_ops;
1031 	itv->cxhdl.priv = itv;
1032 	itv->cxhdl.func = ivtv_api_func;
1033 
1034 	IVTV_DEBUG_INFO("base addr: 0x%llx\n", (u64)itv->base_addr);
1035 
1036 	/* PCI Device Setup */
1037 	retval = ivtv_setup_pci(itv, pdev, pci_id);
1038 	if (retval == -EIO)
1039 		goto free_worker;
1040 	if (retval == -ENXIO)
1041 		goto free_mem;
1042 
1043 	/* map io memory */
1044 	IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1045 		   (u64)itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE);
1046 	itv->enc_mem = ioremap_nocache(itv->base_addr + IVTV_ENCODER_OFFSET,
1047 				       IVTV_ENCODER_SIZE);
1048 	if (!itv->enc_mem) {
1049 		IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 encoder memory\n");
1050 		IVTV_ERR("Each capture card with a CX23415/6 needs 8 MB of vmalloc address space for this window\n");
1051 		IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1052 		IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1053 		retval = -ENOMEM;
1054 		goto free_mem;
1055 	}
1056 
1057 	if (itv->has_cx23415) {
1058 		IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1059 				(u64)itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1060 		itv->dec_mem = ioremap_nocache(itv->base_addr + IVTV_DECODER_OFFSET,
1061 				IVTV_DECODER_SIZE);
1062 		if (!itv->dec_mem) {
1063 			IVTV_ERR("ioremap failed. Can't get a window into CX23415 decoder memory\n");
1064 			IVTV_ERR("Each capture card with a CX23415 needs 8 MB of vmalloc address space for this window\n");
1065 			IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1066 			IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1067 			retval = -ENOMEM;
1068 			goto free_mem;
1069 		}
1070 	}
1071 	else {
1072 		itv->dec_mem = itv->enc_mem;
1073 	}
1074 
1075 	/* map registers memory */
1076 	IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
1077 		   (u64)itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1078 	itv->reg_mem =
1079 	    ioremap_nocache(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1080 	if (!itv->reg_mem) {
1081 		IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 register space\n");
1082 		IVTV_ERR("Each capture card with a CX23415/6 needs 64 kB of vmalloc address space for this window\n");
1083 		IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
1084 		IVTV_ERR("Use the vmalloc= kernel command line option to set VmallocTotal to a larger value\n");
1085 		retval = -ENOMEM;
1086 		goto free_io;
1087 	}
1088 
1089 	retval = ivtv_gpio_init(itv);
1090 	if (retval)
1091 		goto free_io;
1092 
1093 	/* active i2c  */
1094 	IVTV_DEBUG_INFO("activating i2c...\n");
1095 	if (init_ivtv_i2c(itv)) {
1096 		IVTV_ERR("Could not initialize i2c\n");
1097 		goto free_io;
1098 	}
1099 
1100 	if (itv->card->hw_all & IVTV_HW_TVEEPROM) {
1101 		/* Based on the model number the cardtype may be changed.
1102 		   The PCI IDs are not always reliable. */
1103 		ivtv_process_eeprom(itv);
1104 	}
1105 	if (itv->card->comment)
1106 		IVTV_INFO("%s", itv->card->comment);
1107 	if (itv->card->v4l2_capabilities == 0) {
1108 		/* card was detected but is not supported */
1109 		retval = -ENODEV;
1110 		goto free_i2c;
1111 	}
1112 
1113 	if (itv->std == 0) {
1114 		itv->std = V4L2_STD_NTSC_M;
1115 	}
1116 
1117 	if (itv->options.tuner == -1) {
1118 		int i;
1119 
1120 		for (i = 0; i < IVTV_CARD_MAX_TUNERS; i++) {
1121 			if ((itv->std & itv->card->tuners[i].std) == 0)
1122 				continue;
1123 			itv->options.tuner = itv->card->tuners[i].tuner;
1124 			break;
1125 		}
1126 	}
1127 	/* if no tuner was found, then pick the first tuner in the card list */
1128 	if (itv->options.tuner == -1 && itv->card->tuners[0].std) {
1129 		itv->std = itv->card->tuners[0].std;
1130 		if (itv->std & V4L2_STD_PAL)
1131 			itv->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
1132 		else if (itv->std & V4L2_STD_NTSC)
1133 			itv->std = V4L2_STD_NTSC_M;
1134 		else if (itv->std & V4L2_STD_SECAM)
1135 			itv->std = V4L2_STD_SECAM_L;
1136 		itv->options.tuner = itv->card->tuners[0].tuner;
1137 	}
1138 	if (itv->options.radio == -1)
1139 		itv->options.radio = (itv->card->radio_input.audio_type != 0);
1140 
1141 	/* The card is now fully identified, continue with card-specific
1142 	   initialization. */
1143 	ivtv_init_struct2(itv);
1144 
1145 	ivtv_load_and_init_modules(itv);
1146 
1147 	if (itv->std & V4L2_STD_525_60) {
1148 		itv->is_60hz = 1;
1149 		itv->is_out_60hz = 1;
1150 	} else {
1151 		itv->is_50hz = 1;
1152 		itv->is_out_50hz = 1;
1153 	}
1154 
1155 	itv->yuv_info.osd_full_w = 720;
1156 	itv->yuv_info.osd_full_h = itv->is_out_50hz ? 576 : 480;
1157 	itv->yuv_info.v4l2_src_w = itv->yuv_info.osd_full_w;
1158 	itv->yuv_info.v4l2_src_h = itv->yuv_info.osd_full_h;
1159 
1160 	cx2341x_handler_set_50hz(&itv->cxhdl, itv->is_50hz);
1161 
1162 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_MPG] = 0x08000;
1163 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_PCM] = 0x01200;
1164 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_MPG] = 0x10000;
1165 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_YUV] = 0x10000;
1166 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_YUV] = 0x08000;
1167 
1168 	/* Setup VBI Raw Size. Should be big enough to hold PAL.
1169 	   It is possible to switch between PAL and NTSC, so we need to
1170 	   take the largest size here. */
1171 	/* 1456 is multiple of 16, real size = 1444 */
1172 	itv->vbi.raw_size = 1456;
1173 	/* We use a buffer size of 1/2 of the total size needed for a
1174 	   frame. This is actually very useful, since we now receive
1175 	   a field at a time and that makes 'compressing' the raw data
1176 	   down to size by stripping off the SAV codes a lot easier.
1177 	   Note: having two different buffer sizes prevents standard
1178 	   switching on the fly. We need to find a better solution... */
1179 	vbi_buf_size = itv->vbi.raw_size * (itv->is_60hz ? 24 : 36) / 2;
1180 	itv->stream_buf_size[IVTV_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
1181 	itv->stream_buf_size[IVTV_DEC_STREAM_TYPE_VBI] = sizeof(struct v4l2_sliced_vbi_data) * 36;
1182 
1183 	if (itv->options.radio > 0)
1184 		itv->v4l2_cap |= V4L2_CAP_RADIO;
1185 
1186 	if (itv->options.tuner > -1) {
1187 		struct tuner_setup setup;
1188 
1189 		setup.addr = ADDR_UNSET;
1190 		setup.type = itv->options.tuner;
1191 		setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
1192 		if (itv->options.radio > 0)
1193 			setup.mode_mask |= T_RADIO;
1194 		setup.tuner_callback = (setup.type == TUNER_XC2028) ?
1195 			ivtv_reset_tuner_gpio : NULL;
1196 		ivtv_call_all(itv, tuner, s_type_addr, &setup);
1197 		if (setup.type == TUNER_XC2028) {
1198 			static struct xc2028_ctrl ctrl = {
1199 				.fname = XC2028_DEFAULT_FIRMWARE,
1200 				.max_len = 64,
1201 			};
1202 			struct v4l2_priv_tun_config cfg = {
1203 				.tuner = itv->options.tuner,
1204 				.priv = &ctrl,
1205 			};
1206 			ivtv_call_all(itv, tuner, s_config, &cfg);
1207 		}
1208 	}
1209 
1210 	/* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
1211 	   are not. */
1212 	itv->tuner_std = itv->std;
1213 
1214 	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
1215 		struct v4l2_ctrl_handler *hdl = itv->v4l2_dev.ctrl_handler;
1216 
1217 		itv->ctrl_pts = v4l2_ctrl_new_std(hdl, &ivtv_hdl_out_ops,
1218 				V4L2_CID_MPEG_VIDEO_DEC_PTS, 0, 0, 0, 0);
1219 		itv->ctrl_frame = v4l2_ctrl_new_std(hdl, &ivtv_hdl_out_ops,
1220 				V4L2_CID_MPEG_VIDEO_DEC_FRAME, 0, 0, 0, 0);
1221 		/* Note: V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO is not supported,
1222 		   mask that menu item. */
1223 		itv->ctrl_audio_playback =
1224 			v4l2_ctrl_new_std_menu(hdl, &ivtv_hdl_out_ops,
1225 				V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK,
1226 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_SWAPPED_STEREO,
1227 				1 << V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO,
1228 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_STEREO);
1229 		itv->ctrl_audio_multilingual_playback =
1230 			v4l2_ctrl_new_std_menu(hdl, &ivtv_hdl_out_ops,
1231 				V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK,
1232 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_SWAPPED_STEREO,
1233 				1 << V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO,
1234 				V4L2_MPEG_AUDIO_DEC_PLAYBACK_LEFT);
1235 		if (hdl->error) {
1236 			retval = hdl->error;
1237 			goto free_i2c;
1238 		}
1239 		v4l2_ctrl_cluster(2, &itv->ctrl_pts);
1240 		v4l2_ctrl_cluster(2, &itv->ctrl_audio_playback);
1241 		ivtv_call_all(itv, video, s_std_output, itv->std);
1242 		/* Turn off the output signal. The mpeg decoder is not yet
1243 		   active so without this you would get a green image until the
1244 		   mpeg decoder becomes active. */
1245 		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 0);
1246 	}
1247 
1248 	/* clear interrupt mask, effectively disabling interrupts */
1249 	ivtv_set_irq_mask(itv, 0xffffffff);
1250 
1251 	/* Register IRQ */
1252 	retval = request_irq(itv->pdev->irq, ivtv_irq_handler,
1253 	     IRQF_SHARED, itv->v4l2_dev.name, (void *)itv);
1254 	if (retval) {
1255 		IVTV_ERR("Failed to register irq %d\n", retval);
1256 		goto free_i2c;
1257 	}
1258 
1259 	retval = ivtv_streams_setup(itv);
1260 	if (retval) {
1261 		IVTV_ERR("Error %d setting up streams\n", retval);
1262 		goto free_irq;
1263 	}
1264 	retval = ivtv_streams_register(itv);
1265 	if (retval) {
1266 		IVTV_ERR("Error %d registering devices\n", retval);
1267 		goto free_streams;
1268 	}
1269 	IVTV_INFO("Initialized card: %s\n", itv->card_name);
1270 
1271 	/* Load ivtv submodules (ivtv-alsa) */
1272 	request_modules(itv);
1273 	return 0;
1274 
1275 free_streams:
1276 	ivtv_streams_cleanup(itv);
1277 free_irq:
1278 	free_irq(itv->pdev->irq, (void *)itv);
1279 free_i2c:
1280 	v4l2_ctrl_handler_free(&itv->cxhdl.hdl);
1281 	exit_ivtv_i2c(itv);
1282 free_io:
1283 	ivtv_iounmap(itv);
1284 free_mem:
1285 	release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
1286 	release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1287 	if (itv->has_cx23415)
1288 		release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1289 free_worker:
1290 	kthread_stop(itv->irq_worker_task);
1291 err:
1292 	if (retval == 0)
1293 		retval = -ENODEV;
1294 	IVTV_ERR("Error %d on initialization\n", retval);
1295 
1296 	v4l2_device_unregister(&itv->v4l2_dev);
1297 	kfree(itv);
1298 	return retval;
1299 }
1300 
1301 int ivtv_init_on_first_open(struct ivtv *itv)
1302 {
1303 	struct v4l2_frequency vf;
1304 	/* Needed to call ioctls later */
1305 	struct ivtv_open_id fh;
1306 	int fw_retry_count = 3;
1307 	int video_input;
1308 
1309 	fh.itv = itv;
1310 	fh.type = IVTV_ENC_STREAM_TYPE_MPG;
1311 
1312 	if (test_bit(IVTV_F_I_FAILED, &itv->i_flags))
1313 		return -ENXIO;
1314 
1315 	if (test_and_set_bit(IVTV_F_I_INITED, &itv->i_flags))
1316 		return 0;
1317 
1318 	while (--fw_retry_count > 0) {
1319 		/* load firmware */
1320 		if (ivtv_firmware_init(itv) == 0)
1321 			break;
1322 		if (fw_retry_count > 1)
1323 			IVTV_WARN("Retry loading firmware\n");
1324 	}
1325 
1326 	if (fw_retry_count == 0) {
1327 		set_bit(IVTV_F_I_FAILED, &itv->i_flags);
1328 		return -ENXIO;
1329 	}
1330 
1331 	/* Try and get firmware versions */
1332 	IVTV_DEBUG_INFO("Getting firmware version..\n");
1333 	ivtv_firmware_versions(itv);
1334 
1335 	if (itv->card->hw_all & IVTV_HW_CX25840)
1336 		v4l2_subdev_call(itv->sd_video, core, load_fw);
1337 
1338 	vf.tuner = 0;
1339 	vf.type = V4L2_TUNER_ANALOG_TV;
1340 	vf.frequency = 6400; /* the tuner 'baseline' frequency */
1341 
1342 	/* Set initial frequency. For PAL/SECAM broadcasts no
1343 	   'default' channel exists AFAIK. */
1344 	if (itv->std == V4L2_STD_NTSC_M_JP) {
1345 		vf.frequency = 1460;	/* ch. 1 91250*16/1000 */
1346 	}
1347 	else if (itv->std & V4L2_STD_NTSC_M) {
1348 		vf.frequency = 1076;	/* ch. 4 67250*16/1000 */
1349 	}
1350 
1351 	video_input = itv->active_input;
1352 	itv->active_input++;	/* Force update of input */
1353 	ivtv_s_input(NULL, &fh, video_input);
1354 
1355 	/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
1356 	   in one place. */
1357 	itv->std++;		/* Force full standard initialization */
1358 	itv->std_out = itv->std;
1359 	ivtv_s_frequency(NULL, &fh, &vf);
1360 
1361 	if (itv->card->v4l2_capabilities & V4L2_CAP_VIDEO_OUTPUT) {
1362 		/* Turn on the TV-out: ivtv_init_mpeg_decoder() initializes
1363 		   the mpeg decoder so now the saa7127 receives a proper
1364 		   signal. */
1365 		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 1);
1366 		ivtv_init_mpeg_decoder(itv);
1367 	}
1368 
1369 	/* On a cx23416 this seems to be able to enable DMA to the chip? */
1370 	if (!itv->has_cx23415)
1371 		write_reg_sync(0x03, IVTV_REG_DMACONTROL);
1372 
1373 	ivtv_s_std_enc(itv, itv->tuner_std);
1374 
1375 	/* Default interrupts enabled. For the PVR350 this includes the
1376 	   decoder VSYNC interrupt, which is always on. It is not only used
1377 	   during decoding but also by the OSD.
1378 	   Some old PVR250 cards had a cx23415, so testing for that is too
1379 	   general. Instead test if the card has video output capability. */
1380 	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
1381 		ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_INIT | IVTV_IRQ_DEC_VSYNC);
1382 		ivtv_set_osd_alpha(itv);
1383 		ivtv_s_std_dec(itv, itv->tuner_std);
1384 	} else {
1385 		ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_INIT);
1386 	}
1387 
1388 	/* Setup initial controls */
1389 	cx2341x_handler_setup(&itv->cxhdl);
1390 	return 0;
1391 }
1392 
1393 static void ivtv_remove(struct pci_dev *pdev)
1394 {
1395 	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
1396 	struct ivtv *itv = to_ivtv(v4l2_dev);
1397 	int i;
1398 
1399 	IVTV_DEBUG_INFO("Removing card\n");
1400 
1401 	flush_request_modules(itv);
1402 
1403 	if (test_bit(IVTV_F_I_INITED, &itv->i_flags)) {
1404 		/* Stop all captures */
1405 		IVTV_DEBUG_INFO("Stopping all streams\n");
1406 		if (atomic_read(&itv->capturing) > 0)
1407 			ivtv_stop_all_captures(itv);
1408 
1409 		/* Stop all decoding */
1410 		IVTV_DEBUG_INFO("Stopping decoding\n");
1411 
1412 		/* Turn off the TV-out */
1413 		if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
1414 			ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_stream, 0);
1415 		if (atomic_read(&itv->decoding) > 0) {
1416 			int type;
1417 
1418 			if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags))
1419 				type = IVTV_DEC_STREAM_TYPE_YUV;
1420 			else
1421 				type = IVTV_DEC_STREAM_TYPE_MPG;
1422 			ivtv_stop_v4l2_decode_stream(&itv->streams[type],
1423 				V4L2_DEC_CMD_STOP_TO_BLACK | V4L2_DEC_CMD_STOP_IMMEDIATELY, 0);
1424 		}
1425 		ivtv_halt_firmware(itv);
1426 	}
1427 
1428 	/* Interrupts */
1429 	ivtv_set_irq_mask(itv, 0xffffffff);
1430 	del_timer_sync(&itv->dma_timer);
1431 
1432 	/* Kill irq worker */
1433 	kthread_flush_worker(&itv->irq_worker);
1434 	kthread_stop(itv->irq_worker_task);
1435 
1436 	ivtv_streams_cleanup(itv);
1437 	ivtv_udma_free(itv);
1438 
1439 	v4l2_ctrl_handler_free(&itv->cxhdl.hdl);
1440 
1441 	exit_ivtv_i2c(itv);
1442 
1443 	free_irq(itv->pdev->irq, (void *)itv);
1444 	ivtv_iounmap(itv);
1445 
1446 	release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE);
1447 	release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE);
1448 	if (itv->has_cx23415)
1449 		release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE);
1450 
1451 	pci_disable_device(itv->pdev);
1452 	for (i = 0; i < IVTV_VBI_FRAMES; i++)
1453 		kfree(itv->vbi.sliced_mpeg_data[i]);
1454 
1455 	pr_info("Removed %s\n", itv->card_name);
1456 
1457 	v4l2_device_unregister(&itv->v4l2_dev);
1458 	kfree(itv);
1459 }
1460 
1461 /* define a pci_driver for card detection */
1462 static struct pci_driver ivtv_pci_driver = {
1463       .name =     "ivtv",
1464       .id_table = ivtv_pci_tbl,
1465       .probe =    ivtv_probe,
1466       .remove =   ivtv_remove,
1467 };
1468 
1469 static int __init module_start(void)
1470 {
1471 	pr_info("Start initialization, version %s\n", IVTV_VERSION);
1472 
1473 	/* Validate parameters */
1474 	if (ivtv_first_minor < 0 || ivtv_first_minor >= IVTV_MAX_CARDS) {
1475 		pr_err("Exiting, ivtv_first_minor must be between 0 and %d\n",
1476 		     IVTV_MAX_CARDS - 1);
1477 		return -1;
1478 	}
1479 
1480 	if (ivtv_debug < 0 || ivtv_debug > 2047) {
1481 		ivtv_debug = 0;
1482 		pr_info("Debug value must be >= 0 and <= 2047\n");
1483 	}
1484 
1485 	if (pci_register_driver(&ivtv_pci_driver)) {
1486 		pr_err("Error detecting PCI card\n");
1487 		return -ENODEV;
1488 	}
1489 	pr_info("End initialization\n");
1490 	return 0;
1491 }
1492 
1493 static void __exit module_cleanup(void)
1494 {
1495 	pci_unregister_driver(&ivtv_pci_driver);
1496 }
1497 
1498 /* Note: These symbols are exported because they are used by the ivtvfb
1499    framebuffer module and an infrared module for the IR-blaster. */
1500 EXPORT_SYMBOL(ivtv_set_irq_mask);
1501 EXPORT_SYMBOL(ivtv_api);
1502 EXPORT_SYMBOL(ivtv_vapi);
1503 EXPORT_SYMBOL(ivtv_vapi_result);
1504 EXPORT_SYMBOL(ivtv_clear_irq_mask);
1505 EXPORT_SYMBOL(ivtv_debug);
1506 #ifdef CONFIG_VIDEO_ADV_DEBUG
1507 EXPORT_SYMBOL(ivtv_fw_debug);
1508 #endif
1509 EXPORT_SYMBOL(ivtv_reset_ir_gpio);
1510 EXPORT_SYMBOL(ivtv_udma_setup);
1511 EXPORT_SYMBOL(ivtv_udma_unmap);
1512 EXPORT_SYMBOL(ivtv_udma_alloc);
1513 EXPORT_SYMBOL(ivtv_udma_prepare);
1514 EXPORT_SYMBOL(ivtv_init_on_first_open);
1515 EXPORT_SYMBOL(ivtv_firmware_check);
1516 
1517 module_init(module_start);
1518 module_exit(module_cleanup);
1519