1 /*
2  *  cx18 driver initialization and card probing
3  *
4  *  Derived from ivtv-driver.c
5  *
6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
7  *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
8  *
9  *  This program is free software; you can redistribute it and/or modify
10  *  it under the terms of the GNU General Public License as published by
11  *  the Free Software Foundation; either version 2 of the License, or
12  *  (at your option) any later version.
13  *
14  *  This program is distributed in the hope that it will be useful,
15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *  GNU General Public License for more details.
18  *
19  *  You should have received a copy of the GNU General Public License
20  *  along with this program; if not, write to the Free Software
21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22  *  02111-1307  USA
23  */
24 
25 #include "cx18-driver.h"
26 #include "cx18-io.h"
27 #include "cx18-version.h"
28 #include "cx18-cards.h"
29 #include "cx18-i2c.h"
30 #include "cx18-irq.h"
31 #include "cx18-gpio.h"
32 #include "cx18-firmware.h"
33 #include "cx18-queue.h"
34 #include "cx18-streams.h"
35 #include "cx18-av-core.h"
36 #include "cx18-scb.h"
37 #include "cx18-mailbox.h"
38 #include "cx18-ioctl.h"
39 #include "cx18-controls.h"
40 #include "tuner-xc2028.h"
41 #include <linux/dma-mapping.h>
42 #include <media/tveeprom.h>
43 
44 /* If you have already X v4l cards, then set this to X. This way
45    the device numbers stay matched. Example: you have a WinTV card
46    without radio and a Compro H900 with. Normally this would give a
47    video1 device together with a radio0 device for the Compro. By
48    setting this to 1 you ensure that radio0 is now also radio1. */
49 int cx18_first_minor;
50 
51 /* Callback for registering extensions */
52 int (*cx18_ext_init)(struct cx18 *);
53 EXPORT_SYMBOL(cx18_ext_init);
54 
55 /* add your revision and whatnot here */
56 static struct pci_device_id cx18_pci_tbl[] = {
57 	{PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418,
58 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
59 	{0,}
60 };
61 
62 MODULE_DEVICE_TABLE(pci, cx18_pci_tbl);
63 
64 static atomic_t cx18_instance = ATOMIC_INIT(0);
65 
66 /* Parameter declarations */
67 static int cardtype[CX18_MAX_CARDS];
68 static int tuner[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
69 				     -1, -1, -1, -1, -1, -1, -1, -1,
70 				     -1, -1, -1, -1, -1, -1, -1, -1,
71 				     -1, -1, -1, -1, -1, -1, -1, -1 };
72 static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
73 				     -1, -1, -1, -1, -1, -1, -1, -1,
74 				     -1, -1, -1, -1, -1, -1, -1, -1,
75 				     -1, -1, -1, -1, -1, -1, -1, -1 };
76 static unsigned cardtype_c = 1;
77 static unsigned tuner_c = 1;
78 static unsigned radio_c = 1;
79 static char pal[] = "--";
80 static char secam[] = "--";
81 static char ntsc[] = "-";
82 
83 /* Buffers */
84 static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
85 static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
86 static int enc_idx_buffers = CX18_DEFAULT_ENC_IDX_BUFFERS;
87 static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS;
88 static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS;
89 static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS;
90 
91 static int enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE;
92 static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE;
93 static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE;
94 static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE;
95 static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE;
96 
97 static int enc_ts_bufs = -1;
98 static int enc_mpg_bufs = -1;
99 static int enc_idx_bufs = CX18_MAX_FW_MDLS_PER_STREAM;
100 static int enc_yuv_bufs = -1;
101 static int enc_vbi_bufs = -1;
102 static int enc_pcm_bufs = -1;
103 
104 
105 static int cx18_pci_latency = 1;
106 
107 static int mmio_ndelay;
108 static int retry_mmio = 1;
109 
110 int cx18_debug;
111 
112 module_param_array(tuner, int, &tuner_c, 0644);
113 module_param_array(radio, int, &radio_c, 0644);
114 module_param_array(cardtype, int, &cardtype_c, 0644);
115 module_param_string(pal, pal, sizeof(pal), 0644);
116 module_param_string(secam, secam, sizeof(secam), 0644);
117 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
118 module_param_named(debug, cx18_debug, int, 0644);
119 module_param(mmio_ndelay, int, 0644);
120 module_param(retry_mmio, int, 0644);
121 module_param(cx18_pci_latency, int, 0644);
122 module_param(cx18_first_minor, int, 0644);
123 
124 module_param(enc_ts_buffers, int, 0644);
125 module_param(enc_mpg_buffers, int, 0644);
126 module_param(enc_idx_buffers, int, 0644);
127 module_param(enc_yuv_buffers, int, 0644);
128 module_param(enc_vbi_buffers, int, 0644);
129 module_param(enc_pcm_buffers, int, 0644);
130 
131 module_param(enc_ts_bufsize, int, 0644);
132 module_param(enc_mpg_bufsize, int, 0644);
133 module_param(enc_idx_bufsize, int, 0644);
134 module_param(enc_yuv_bufsize, int, 0644);
135 module_param(enc_pcm_bufsize, int, 0644);
136 
137 module_param(enc_ts_bufs, int, 0644);
138 module_param(enc_mpg_bufs, int, 0644);
139 module_param(enc_idx_bufs, int, 0644);
140 module_param(enc_yuv_bufs, int, 0644);
141 module_param(enc_vbi_bufs, int, 0644);
142 module_param(enc_pcm_bufs, int, 0644);
143 
144 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
145 			"\t\t\tsee tuner.h for values");
146 MODULE_PARM_DESC(radio,
147 		 "Enable or disable the radio. Use only if autodetection\n"
148 		 "\t\t\tfails. 0 = disable, 1 = enable");
149 MODULE_PARM_DESC(cardtype,
150 		 "Only use this option if your card is not detected properly.\n"
151 		 "\t\tSpecify card type:\n"
152 		 "\t\t\t 1 = Hauppauge HVR 1600 (ESMT memory)\n"
153 		 "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n"
154 		 "\t\t\t 3 = Compro VideoMate H900\n"
155 		 "\t\t\t 4 = Yuan MPC718\n"
156 		 "\t\t\t 5 = Conexant Raptor PAL/SECAM\n"
157 		 "\t\t\t 6 = Toshiba Qosmio DVB-T/Analog\n"
158 		 "\t\t\t 7 = Leadtek WinFast PVR2100\n"
159 		 "\t\t\t 8 = Leadtek WinFast DVR3100 H\n"
160 		 "\t\t\t 9 = GoTView PCI DVD3 Hybrid\n"
161 		 "\t\t\t 10 = Hauppauge HVR 1600 (S5H1411)\n"
162 		 "\t\t\t 0 = Autodetect (default)\n"
163 		 "\t\t\t-1 = Ignore this card\n\t\t");
164 MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60");
165 MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC");
166 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K");
167 MODULE_PARM_DESC(debug,
168 		 "Debug level (bitmask). Default: 0\n"
169 		 "\t\t\t  1/0x0001: warning\n"
170 		 "\t\t\t  2/0x0002: info\n"
171 		 "\t\t\t  4/0x0004: mailbox\n"
172 		 "\t\t\t  8/0x0008: dma\n"
173 		 "\t\t\t 16/0x0010: ioctl\n"
174 		 "\t\t\t 32/0x0020: file\n"
175 		 "\t\t\t 64/0x0040: i2c\n"
176 		 "\t\t\t128/0x0080: irq\n"
177 		 "\t\t\t256/0x0100: high volume\n");
178 MODULE_PARM_DESC(cx18_pci_latency,
179 		 "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
180 		 "\t\t\tDefault: Yes");
181 MODULE_PARM_DESC(retry_mmio,
182 		 "(Deprecated) MMIO writes are now always checked and retried\n"
183 		 "\t\t\tEffectively: 1 [Yes]");
184 MODULE_PARM_DESC(mmio_ndelay,
185 		 "(Deprecated) MMIO accesses are now never purposely delayed\n"
186 		 "\t\t\tEffectively: 0 ns");
187 MODULE_PARM_DESC(enc_ts_buffers,
188 		 "Encoder TS buffer memory (MB). (enc_ts_bufs can override)\n"
189 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
190 MODULE_PARM_DESC(enc_ts_bufsize,
191 		 "Size of an encoder TS buffer (kB)\n"
192 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFSIZE));
193 MODULE_PARM_DESC(enc_ts_bufs,
194 		 "Number of encoder TS buffers\n"
195 		 "\t\t\tDefault is computed from other enc_ts_* parameters");
196 MODULE_PARM_DESC(enc_mpg_buffers,
197 		 "Encoder MPG buffer memory (MB). (enc_mpg_bufs can override)\n"
198 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
199 MODULE_PARM_DESC(enc_mpg_bufsize,
200 		 "Size of an encoder MPG buffer (kB)\n"
201 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFSIZE));
202 MODULE_PARM_DESC(enc_mpg_bufs,
203 		 "Number of encoder MPG buffers\n"
204 		 "\t\t\tDefault is computed from other enc_mpg_* parameters");
205 MODULE_PARM_DESC(enc_idx_buffers,
206 		 "(Deprecated) Encoder IDX buffer memory (MB)\n"
207 		 "\t\t\tIgnored, except 0 disables IDX buffer allocations\n"
208 		 "\t\t\tDefault: 1 [Enabled]");
209 MODULE_PARM_DESC(enc_idx_bufsize,
210 		 "Size of an encoder IDX buffer (kB)\n"
211 		 "\t\t\tAllowed values are multiples of 1.5 kB rounded up\n"
212 		 "\t\t\t(multiples of size required for 64 index entries)\n"
213 		 "\t\t\tDefault: 2");
214 MODULE_PARM_DESC(enc_idx_bufs,
215 		 "Number of encoder IDX buffers\n"
216 		 "\t\t\tDefault: " __stringify(CX18_MAX_FW_MDLS_PER_STREAM));
217 MODULE_PARM_DESC(enc_yuv_buffers,
218 		 "Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n"
219 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
220 MODULE_PARM_DESC(enc_yuv_bufsize,
221 		 "Size of an encoder YUV buffer (kB)\n"
222 		 "\t\t\tAllowed values are multiples of 33.75 kB rounded up\n"
223 		 "\t\t\t(multiples of size required for 32 screen lines)\n"
224 		 "\t\t\tDefault: 102");
225 MODULE_PARM_DESC(enc_yuv_bufs,
226 		 "Number of encoder YUV buffers\n"
227 		 "\t\t\tDefault is computed from other enc_yuv_* parameters");
228 MODULE_PARM_DESC(enc_vbi_buffers,
229 		 "Encoder VBI buffer memory (MB). (enc_vbi_bufs can override)\n"
230 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
231 MODULE_PARM_DESC(enc_vbi_bufs,
232 		 "Number of encoder VBI buffers\n"
233 		 "\t\t\tDefault is computed from enc_vbi_buffers");
234 MODULE_PARM_DESC(enc_pcm_buffers,
235 		 "Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n"
236 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));
237 MODULE_PARM_DESC(enc_pcm_bufsize,
238 		 "Size of an encoder PCM buffer (kB)\n"
239 		 "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFSIZE));
240 MODULE_PARM_DESC(enc_pcm_bufs,
241 		 "Number of encoder PCM buffers\n"
242 		 "\t\t\tDefault is computed from other enc_pcm_* parameters");
243 
244 MODULE_PARM_DESC(cx18_first_minor,
245 		 "Set device node number assigned to first card");
246 
247 MODULE_AUTHOR("Hans Verkuil");
248 MODULE_DESCRIPTION("CX23418 driver");
249 MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
250 MODULE_LICENSE("GPL");
251 
252 MODULE_VERSION(CX18_VERSION);
253 
254 #if defined(CONFIG_MODULES) && defined(MODULE)
255 static void request_module_async(struct work_struct *work)
256 {
257 	struct cx18 *dev = container_of(work, struct cx18, request_module_wk);
258 
259 	/* Make sure cx18-alsa module is loaded */
260 	request_module("cx18-alsa");
261 
262 	/* Initialize cx18-alsa for this instance of the cx18 device */
263 	if (cx18_ext_init != NULL)
264 		cx18_ext_init(dev);
265 }
266 
267 static void request_modules(struct cx18 *dev)
268 {
269 	INIT_WORK(&dev->request_module_wk, request_module_async);
270 	schedule_work(&dev->request_module_wk);
271 }
272 
273 static void flush_request_modules(struct cx18 *dev)
274 {
275 	flush_work(&dev->request_module_wk);
276 }
277 #else
278 #define request_modules(dev)
279 #define flush_request_modules(dev)
280 #endif /* CONFIG_MODULES */
281 
282 /* Generic utility functions */
283 int cx18_msleep_timeout(unsigned int msecs, int intr)
284 {
285 	long int timeout = msecs_to_jiffies(msecs);
286 	int sig;
287 
288 	do {
289 		set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
290 		timeout = schedule_timeout(timeout);
291 		sig = intr ? signal_pending(current) : 0;
292 	} while (!sig && timeout);
293 	return sig;
294 }
295 
296 /* Release ioremapped memory */
297 static void cx18_iounmap(struct cx18 *cx)
298 {
299 	if (cx == NULL)
300 		return;
301 
302 	/* Release io memory */
303 	if (cx->enc_mem != NULL) {
304 		CX18_DEBUG_INFO("releasing enc_mem\n");
305 		iounmap(cx->enc_mem);
306 		cx->enc_mem = NULL;
307 	}
308 }
309 
310 static void cx18_eeprom_dump(struct cx18 *cx, unsigned char *eedata, int len)
311 {
312 	int i;
313 
314 	CX18_INFO("eeprom dump:\n");
315 	for (i = 0; i < len; i++) {
316 		if (0 == (i % 16))
317 			CX18_INFO("eeprom %02x:", i);
318 		printk(KERN_CONT " %02x", eedata[i]);
319 		if (15 == (i % 16))
320 			printk(KERN_CONT "\n");
321 	}
322 }
323 
324 /* Hauppauge card? get values from tveeprom */
325 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
326 {
327 	struct i2c_client *c;
328 	u8 eedata[256];
329 
330 	memset(tv, 0, sizeof(*tv));
331 
332 	c = kzalloc(sizeof(*c), GFP_KERNEL);
333 	if (!c)
334 		return;
335 
336 	strlcpy(c->name, "cx18 tveeprom tmp", sizeof(c->name));
337 	c->adapter = &cx->i2c_adap[0];
338 	c->addr = 0xa0 >> 1;
339 
340 	if (tveeprom_read(c, eedata, sizeof(eedata)))
341 		goto ret;
342 
343 	switch (cx->card->type) {
344 	case CX18_CARD_HVR_1600_ESMT:
345 	case CX18_CARD_HVR_1600_SAMSUNG:
346 	case CX18_CARD_HVR_1600_S5H1411:
347 		tveeprom_hauppauge_analog(c, tv, eedata);
348 		break;
349 	case CX18_CARD_YUAN_MPC718:
350 	case CX18_CARD_GOTVIEW_PCI_DVD3:
351 		tv->model = 0x718;
352 		cx18_eeprom_dump(cx, eedata, sizeof(eedata));
353 		CX18_INFO("eeprom PCI ID: %02x%02x:%02x%02x\n",
354 			  eedata[2], eedata[1], eedata[4], eedata[3]);
355 		break;
356 	default:
357 		tv->model = 0xffffffff;
358 		cx18_eeprom_dump(cx, eedata, sizeof(eedata));
359 		break;
360 	}
361 
362 ret:
363 	kfree(c);
364 }
365 
366 static void cx18_process_eeprom(struct cx18 *cx)
367 {
368 	struct tveeprom tv;
369 
370 	cx18_read_eeprom(cx, &tv);
371 
372 	/* Many thanks to Steven Toth from Hauppauge for providing the
373 	   model numbers */
374 	/* Note: the Samsung memory models cannot be reliably determined
375 	   from the model number. Use the cardtype module option if you
376 	   have one of these preproduction models. */
377 	switch (tv.model) {
378 	case 74301: /* Retail models */
379 	case 74321:
380 	case 74351: /* OEM models */
381 	case 74361:
382 		/* Digital side is s5h1411/tda18271 */
383 		cx->card = cx18_get_card(CX18_CARD_HVR_1600_S5H1411);
384 		break;
385 	case 74021: /* Retail models */
386 	case 74031:
387 	case 74041:
388 	case 74141:
389 	case 74541: /* OEM models */
390 	case 74551:
391 	case 74591:
392 	case 74651:
393 	case 74691:
394 	case 74751:
395 	case 74891:
396 		/* Digital side is s5h1409/mxl5005s */
397 		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
398 		break;
399 	case 0x718:
400 		return;
401 	case 0xffffffff:
402 		CX18_INFO("Unknown EEPROM encoding\n");
403 		return;
404 	case 0:
405 		CX18_ERR("Invalid EEPROM\n");
406 		return;
407 	default:
408 		CX18_ERR("Unknown model %d, defaulting to original HVR-1600 "
409 			 "(cardtype=1)\n", tv.model);
410 		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
411 		break;
412 	}
413 
414 	cx->v4l2_cap = cx->card->v4l2_capabilities;
415 	cx->card_name = cx->card->name;
416 	cx->card_i2c = cx->card->i2c;
417 
418 	CX18_INFO("Autodetected %s\n", cx->card_name);
419 
420 	if (tv.tuner_type == TUNER_ABSENT)
421 		CX18_ERR("tveeprom cannot autodetect tuner!\n");
422 
423 	if (cx->options.tuner == -1)
424 		cx->options.tuner = tv.tuner_type;
425 	if (cx->options.radio == -1)
426 		cx->options.radio = (tv.has_radio != 0);
427 
428 	if (cx->std != 0)
429 		/* user specified tuner standard */
430 		return;
431 
432 	/* autodetect tuner standard */
433 #define TVEEPROM_TUNER_FORMAT_ALL (V4L2_STD_B  | V4L2_STD_GH | \
434 				   V4L2_STD_MN | \
435 				   V4L2_STD_PAL_I | \
436 				   V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC | \
437 				   V4L2_STD_DK)
438 	if ((tv.tuner_formats & TVEEPROM_TUNER_FORMAT_ALL)
439 					== TVEEPROM_TUNER_FORMAT_ALL) {
440 		CX18_DEBUG_INFO("Worldwide tuner detected\n");
441 		cx->std = V4L2_STD_ALL;
442 	} else if (tv.tuner_formats & V4L2_STD_PAL) {
443 		CX18_DEBUG_INFO("PAL tuner detected\n");
444 		cx->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
445 	} else if (tv.tuner_formats & V4L2_STD_NTSC) {
446 		CX18_DEBUG_INFO("NTSC tuner detected\n");
447 		cx->std |= V4L2_STD_NTSC_M;
448 	} else if (tv.tuner_formats & V4L2_STD_SECAM) {
449 		CX18_DEBUG_INFO("SECAM tuner detected\n");
450 		cx->std |= V4L2_STD_SECAM_L;
451 	} else {
452 		CX18_INFO("No tuner detected, default to NTSC-M\n");
453 		cx->std |= V4L2_STD_NTSC_M;
454 	}
455 }
456 
457 static v4l2_std_id cx18_parse_std(struct cx18 *cx)
458 {
459 	switch (pal[0]) {
460 	case '6':
461 		return V4L2_STD_PAL_60;
462 	case 'b':
463 	case 'B':
464 	case 'g':
465 	case 'G':
466 		return V4L2_STD_PAL_BG;
467 	case 'h':
468 	case 'H':
469 		return V4L2_STD_PAL_H;
470 	case 'n':
471 	case 'N':
472 		if (pal[1] == 'c' || pal[1] == 'C')
473 			return V4L2_STD_PAL_Nc;
474 		return V4L2_STD_PAL_N;
475 	case 'i':
476 	case 'I':
477 		return V4L2_STD_PAL_I;
478 	case 'd':
479 	case 'D':
480 	case 'k':
481 	case 'K':
482 		return V4L2_STD_PAL_DK;
483 	case 'M':
484 	case 'm':
485 		return V4L2_STD_PAL_M;
486 	case '-':
487 		break;
488 	default:
489 		CX18_WARN("pal= argument not recognised\n");
490 		return 0;
491 	}
492 
493 	switch (secam[0]) {
494 	case 'b':
495 	case 'B':
496 	case 'g':
497 	case 'G':
498 	case 'h':
499 	case 'H':
500 		return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
501 	case 'd':
502 	case 'D':
503 	case 'k':
504 	case 'K':
505 		return V4L2_STD_SECAM_DK;
506 	case 'l':
507 	case 'L':
508 		if (secam[1] == 'C' || secam[1] == 'c')
509 			return V4L2_STD_SECAM_LC;
510 		return V4L2_STD_SECAM_L;
511 	case '-':
512 		break;
513 	default:
514 		CX18_WARN("secam= argument not recognised\n");
515 		return 0;
516 	}
517 
518 	switch (ntsc[0]) {
519 	case 'm':
520 	case 'M':
521 		return V4L2_STD_NTSC_M;
522 	case 'j':
523 	case 'J':
524 		return V4L2_STD_NTSC_M_JP;
525 	case 'k':
526 	case 'K':
527 		return V4L2_STD_NTSC_M_KR;
528 	case '-':
529 		break;
530 	default:
531 		CX18_WARN("ntsc= argument not recognised\n");
532 		return 0;
533 	}
534 
535 	/* no match found */
536 	return 0;
537 }
538 
539 static void cx18_process_options(struct cx18 *cx)
540 {
541 	int i, j;
542 
543 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers;
544 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
545 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_buffers;
546 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers;
547 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers;
548 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
549 	cx->options.megabytes[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control only */
550 
551 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufs;
552 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufs;
553 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufs;
554 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufs;
555 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_bufs;
556 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufs;
557 	cx->stream_buffers[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control, no data */
558 
559 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufsize;
560 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufsize;
561 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufsize;
562 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufsize;
563 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_active_samples * 36;
564 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufsize;
565 	cx->stream_buf_size[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control no data */
566 
567 	/* Ensure stream_buffers & stream_buf_size are valid */
568 	for (i = 0; i < CX18_MAX_STREAMS; i++) {
569 		if (cx->stream_buffers[i] == 0 ||     /* User said 0 buffers */
570 		    cx->options.megabytes[i] <= 0 ||  /* User said 0 MB total */
571 		    cx->stream_buf_size[i] <= 0) {    /* User said buf size 0 */
572 			cx->options.megabytes[i] = 0;
573 			cx->stream_buffers[i] = 0;
574 			cx->stream_buf_size[i] = 0;
575 			continue;
576 		}
577 		/*
578 		 * YUV is a special case where the stream_buf_size needs to be
579 		 * an integral multiple of 33.75 kB (storage for 32 screens
580 		 * lines to maintain alignment in case of lost buffers).
581 		 *
582 		 * IDX is a special case where the stream_buf_size should be
583 		 * an integral multiple of 1.5 kB (storage for 64 index entries
584 		 * to maintain alignment in case of lost buffers).
585 		 *
586 		 */
587 		if (i == CX18_ENC_STREAM_TYPE_YUV) {
588 			cx->stream_buf_size[i] *= 1024;
589 			cx->stream_buf_size[i] -=
590 			   (cx->stream_buf_size[i] % CX18_UNIT_ENC_YUV_BUFSIZE);
591 
592 			if (cx->stream_buf_size[i] < CX18_UNIT_ENC_YUV_BUFSIZE)
593 				cx->stream_buf_size[i] =
594 						CX18_UNIT_ENC_YUV_BUFSIZE;
595 		} else if (i == CX18_ENC_STREAM_TYPE_IDX) {
596 			cx->stream_buf_size[i] *= 1024;
597 			cx->stream_buf_size[i] -=
598 			   (cx->stream_buf_size[i] % CX18_UNIT_ENC_IDX_BUFSIZE);
599 
600 			if (cx->stream_buf_size[i] < CX18_UNIT_ENC_IDX_BUFSIZE)
601 				cx->stream_buf_size[i] =
602 						CX18_UNIT_ENC_IDX_BUFSIZE;
603 		}
604 		/*
605 		 * YUV and IDX are special cases where the stream_buf_size is
606 		 * now in bytes.
607 		 * VBI is a special case where the stream_buf_size is fixed
608 		 * and already in bytes
609 		 */
610 		if (i == CX18_ENC_STREAM_TYPE_VBI ||
611 		    i == CX18_ENC_STREAM_TYPE_YUV ||
612 		    i == CX18_ENC_STREAM_TYPE_IDX) {
613 			if (cx->stream_buffers[i] < 0) {
614 				cx->stream_buffers[i] =
615 					cx->options.megabytes[i] * 1024 * 1024
616 					/ cx->stream_buf_size[i];
617 			} else {
618 				/* N.B. This might round down to 0 */
619 				cx->options.megabytes[i] =
620 					cx->stream_buffers[i]
621 					* cx->stream_buf_size[i]/(1024 * 1024);
622 			}
623 		} else {
624 			/* All other streams have stream_buf_size in kB here */
625 			if (cx->stream_buffers[i] < 0) {
626 				cx->stream_buffers[i] =
627 						cx->options.megabytes[i] * 1024
628 						/ cx->stream_buf_size[i];
629 			} else {
630 				/* N.B. This might round down to 0 */
631 				cx->options.megabytes[i] =
632 						cx->stream_buffers[i]
633 						* cx->stream_buf_size[i] / 1024;
634 			}
635 			/* convert from kB to bytes */
636 			cx->stream_buf_size[i] *= 1024;
637 		}
638 		CX18_DEBUG_INFO("Stream type %d options: %d MB, %d buffers, "
639 				"%d bytes\n", i, cx->options.megabytes[i],
640 				cx->stream_buffers[i], cx->stream_buf_size[i]);
641 	}
642 
643 	cx->options.cardtype = cardtype[cx->instance];
644 	cx->options.tuner = tuner[cx->instance];
645 	cx->options.radio = radio[cx->instance];
646 
647 	cx->std = cx18_parse_std(cx);
648 	if (cx->options.cardtype == -1) {
649 		CX18_INFO("Ignore card\n");
650 		return;
651 	}
652 	cx->card = cx18_get_card(cx->options.cardtype - 1);
653 	if (cx->card)
654 		CX18_INFO("User specified %s card\n", cx->card->name);
655 	else if (cx->options.cardtype != 0)
656 		CX18_ERR("Unknown user specified type, trying to autodetect card\n");
657 	if (cx->card == NULL) {
658 		if (cx->pci_dev->subsystem_vendor == CX18_PCI_ID_HAUPPAUGE) {
659 			cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
660 			CX18_INFO("Autodetected Hauppauge card\n");
661 		}
662 	}
663 	if (cx->card == NULL) {
664 		for (i = 0; (cx->card = cx18_get_card(i)); i++) {
665 			if (cx->card->pci_list == NULL)
666 				continue;
667 			for (j = 0; cx->card->pci_list[j].device; j++) {
668 				if (cx->pci_dev->device !=
669 				    cx->card->pci_list[j].device)
670 					continue;
671 				if (cx->pci_dev->subsystem_vendor !=
672 				    cx->card->pci_list[j].subsystem_vendor)
673 					continue;
674 				if (cx->pci_dev->subsystem_device !=
675 				    cx->card->pci_list[j].subsystem_device)
676 					continue;
677 				CX18_INFO("Autodetected %s card\n", cx->card->name);
678 				goto done;
679 			}
680 		}
681 	}
682 done:
683 
684 	if (cx->card == NULL) {
685 		cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
686 		CX18_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
687 			 cx->pci_dev->vendor, cx->pci_dev->device);
688 		CX18_ERR("              subsystem vendor/device: [%04x:%04x]\n",
689 			 cx->pci_dev->subsystem_vendor,
690 			 cx->pci_dev->subsystem_device);
691 		CX18_ERR("Defaulting to %s card\n", cx->card->name);
692 		CX18_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
693 		CX18_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
694 		CX18_ERR("Prefix your subject line with [UNKNOWN CX18 CARD].\n");
695 	}
696 	cx->v4l2_cap = cx->card->v4l2_capabilities;
697 	cx->card_name = cx->card->name;
698 	cx->card_i2c = cx->card->i2c;
699 }
700 
701 static int cx18_create_in_workq(struct cx18 *cx)
702 {
703 	snprintf(cx->in_workq_name, sizeof(cx->in_workq_name), "%s-in",
704 		 cx->v4l2_dev.name);
705 	cx->in_work_queue = alloc_ordered_workqueue("%s", 0, cx->in_workq_name);
706 	if (cx->in_work_queue == NULL) {
707 		CX18_ERR("Unable to create incoming mailbox handler thread\n");
708 		return -ENOMEM;
709 	}
710 	return 0;
711 }
712 
713 static void cx18_init_in_work_orders(struct cx18 *cx)
714 {
715 	int i;
716 	for (i = 0; i < CX18_MAX_IN_WORK_ORDERS; i++) {
717 		cx->in_work_order[i].cx = cx;
718 		cx->in_work_order[i].str = cx->epu_debug_str;
719 		INIT_WORK(&cx->in_work_order[i].work, cx18_in_work_handler);
720 	}
721 }
722 
723 /* Precondition: the cx18 structure has been memset to 0. Only
724    the dev and instance fields have been filled in.
725    No assumptions on the card type may be made here (see cx18_init_struct2
726    for that).
727  */
728 static int cx18_init_struct1(struct cx18 *cx)
729 {
730 	int ret;
731 
732 	cx->base_addr = pci_resource_start(cx->pci_dev, 0);
733 
734 	mutex_init(&cx->serialize_lock);
735 	mutex_init(&cx->gpio_lock);
736 	mutex_init(&cx->epu2apu_mb_lock);
737 	mutex_init(&cx->epu2cpu_mb_lock);
738 
739 	ret = cx18_create_in_workq(cx);
740 	if (ret)
741 		return ret;
742 
743 	cx18_init_in_work_orders(cx);
744 
745 	/* start counting open_id at 1 */
746 	cx->open_id = 1;
747 
748 	/* Initial settings */
749 	cx->cxhdl.port = CX2341X_PORT_MEMORY;
750 	cx->cxhdl.capabilities = CX2341X_CAP_HAS_TS | CX2341X_CAP_HAS_SLICED_VBI;
751 	cx->cxhdl.ops = &cx18_cxhdl_ops;
752 	cx->cxhdl.func = cx18_api_func;
753 	cx->cxhdl.priv = &cx->streams[CX18_ENC_STREAM_TYPE_MPG];
754 	ret = cx2341x_handler_init(&cx->cxhdl, 50);
755 	if (ret)
756 		return ret;
757 	cx->v4l2_dev.ctrl_handler = &cx->cxhdl.hdl;
758 
759 	cx->temporal_strength = cx->cxhdl.video_temporal_filter->cur.val;
760 	cx->spatial_strength = cx->cxhdl.video_spatial_filter->cur.val;
761 	cx->filter_mode = cx->cxhdl.video_spatial_filter_mode->cur.val |
762 		(cx->cxhdl.video_temporal_filter_mode->cur.val << 1) |
763 		(cx->cxhdl.video_median_filter_type->cur.val << 2);
764 
765 	init_waitqueue_head(&cx->cap_w);
766 	init_waitqueue_head(&cx->mb_apu_waitq);
767 	init_waitqueue_head(&cx->mb_cpu_waitq);
768 	init_waitqueue_head(&cx->dma_waitq);
769 
770 	/* VBI */
771 	cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
772 	cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
773 
774 	/* IVTV style VBI insertion into MPEG streams */
775 	INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_buf.list);
776 	INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_mdl.list);
777 	INIT_LIST_HEAD(&cx->vbi.sliced_mpeg_mdl.buf_list);
778 	list_add(&cx->vbi.sliced_mpeg_buf.list,
779 		 &cx->vbi.sliced_mpeg_mdl.buf_list);
780 	return 0;
781 }
782 
783 /* Second initialization part. Here the card type has been
784    autodetected. */
785 static void cx18_init_struct2(struct cx18 *cx)
786 {
787 	int i;
788 
789 	for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS - 1; i++)
790 		if (cx->card->video_inputs[i].video_type == 0)
791 			break;
792 	cx->nof_inputs = i;
793 	for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS - 1; i++)
794 		if (cx->card->audio_inputs[i].audio_type == 0)
795 			break;
796 	cx->nof_audio_inputs = i;
797 
798 	/* Find tuner input */
799 	for (i = 0; i < cx->nof_inputs; i++) {
800 		if (cx->card->video_inputs[i].video_type ==
801 				CX18_CARD_INPUT_VID_TUNER)
802 			break;
803 	}
804 	if (i == cx->nof_inputs)
805 		i = 0;
806 	cx->active_input = i;
807 	cx->audio_input = cx->card->video_inputs[i].audio_index;
808 }
809 
810 static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *pci_dev,
811 			  const struct pci_device_id *pci_id)
812 {
813 	u16 cmd;
814 	unsigned char pci_latency;
815 
816 	CX18_DEBUG_INFO("Enabling pci device\n");
817 
818 	if (pci_enable_device(pci_dev)) {
819 		CX18_ERR("Can't enable device %d!\n", cx->instance);
820 		return -EIO;
821 	}
822 	if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
823 		CX18_ERR("No suitable DMA available, card %d\n", cx->instance);
824 		return -EIO;
825 	}
826 	if (!request_mem_region(cx->base_addr, CX18_MEM_SIZE, "cx18 encoder")) {
827 		CX18_ERR("Cannot request encoder memory region, card %d\n",
828 			 cx->instance);
829 		return -EIO;
830 	}
831 
832 	/* Enable bus mastering and memory mapped IO for the CX23418 */
833 	pci_read_config_word(pci_dev, PCI_COMMAND, &cmd);
834 	cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
835 	pci_write_config_word(pci_dev, PCI_COMMAND, cmd);
836 
837 	cx->card_rev = pci_dev->revision;
838 	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &pci_latency);
839 
840 	if (pci_latency < 64 && cx18_pci_latency) {
841 		CX18_INFO("Unreasonably low latency timer, "
842 			       "setting to 64 (was %d)\n", pci_latency);
843 		pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, 64);
844 		pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &pci_latency);
845 	}
846 
847 	CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
848 		   "irq: %d, latency: %d, memory: 0x%llx\n",
849 		   cx->pci_dev->device, cx->card_rev, pci_dev->bus->number,
850 		   PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn),
851 		   cx->pci_dev->irq, pci_latency, (u64)cx->base_addr);
852 
853 	return 0;
854 }
855 
856 static void cx18_init_subdevs(struct cx18 *cx)
857 {
858 	u32 hw = cx->card->hw_all;
859 	u32 device;
860 	int i;
861 
862 	for (i = 0, device = 1; i < 32; i++, device <<= 1) {
863 
864 		if (!(device & hw))
865 			continue;
866 
867 		switch (device) {
868 		case CX18_HW_DVB:
869 		case CX18_HW_TVEEPROM:
870 			/* These subordinate devices do not use probing */
871 			cx->hw_flags |= device;
872 			break;
873 		case CX18_HW_418_AV:
874 			/* The A/V decoder gets probed earlier to set PLLs */
875 			/* Just note that the card uses it (i.e. has analog) */
876 			cx->hw_flags |= device;
877 			break;
878 		case CX18_HW_GPIO_RESET_CTRL:
879 			/*
880 			 * The Reset Controller gets probed and added to
881 			 * hw_flags earlier for i2c adapter/bus initialization
882 			 */
883 			break;
884 		case CX18_HW_GPIO_MUX:
885 			if (cx18_gpio_register(cx, device) == 0)
886 				cx->hw_flags |= device;
887 			break;
888 		default:
889 			if (cx18_i2c_register(cx, i) == 0)
890 				cx->hw_flags |= device;
891 			break;
892 		}
893 	}
894 
895 	if (cx->hw_flags & CX18_HW_418_AV)
896 		cx->sd_av = cx18_find_hw(cx, CX18_HW_418_AV);
897 
898 	if (cx->card->hw_muxer != 0)
899 		cx->sd_extmux = cx18_find_hw(cx, cx->card->hw_muxer);
900 }
901 
902 static int cx18_probe(struct pci_dev *pci_dev,
903 		      const struct pci_device_id *pci_id)
904 {
905 	int retval = 0;
906 	int i;
907 	u32 devtype;
908 	struct cx18 *cx;
909 
910 	/* FIXME - module parameter arrays constrain max instances */
911 	i = atomic_inc_return(&cx18_instance) - 1;
912 	if (i >= CX18_MAX_CARDS) {
913 		printk(KERN_ERR "cx18: cannot manage card %d, driver has a "
914 		       "limit of 0 - %d\n", i, CX18_MAX_CARDS - 1);
915 		return -ENOMEM;
916 	}
917 
918 	cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
919 	if (cx == NULL) {
920 		printk(KERN_ERR "cx18: cannot manage card %d, out of memory\n",
921 		       i);
922 		return -ENOMEM;
923 	}
924 	cx->pci_dev = pci_dev;
925 	cx->instance = i;
926 
927 	retval = v4l2_device_register(&pci_dev->dev, &cx->v4l2_dev);
928 	if (retval) {
929 		printk(KERN_ERR "cx18: v4l2_device_register of card %d failed"
930 		       "\n", cx->instance);
931 		kfree(cx);
932 		return retval;
933 	}
934 	snprintf(cx->v4l2_dev.name, sizeof(cx->v4l2_dev.name), "cx18-%d",
935 		 cx->instance);
936 	CX18_INFO("Initializing card %d\n", cx->instance);
937 
938 	cx18_process_options(cx);
939 	if (cx->options.cardtype == -1) {
940 		retval = -ENODEV;
941 		goto err;
942 	}
943 
944 	retval = cx18_init_struct1(cx);
945 	if (retval)
946 		goto err;
947 
948 	CX18_DEBUG_INFO("base addr: 0x%llx\n", (u64)cx->base_addr);
949 
950 	/* PCI Device Setup */
951 	retval = cx18_setup_pci(cx, pci_dev, pci_id);
952 	if (retval != 0)
953 		goto free_workqueues;
954 
955 	/* map io memory */
956 	CX18_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n",
957 		   (u64)cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE);
958 	cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET,
959 				       CX18_MEM_SIZE);
960 	if (!cx->enc_mem) {
961 		CX18_ERR("ioremap failed. Can't get a window into CX23418 "
962 			 "memory and register space\n");
963 		CX18_ERR("Each capture card with a CX23418 needs 64 MB of "
964 			 "vmalloc address space for the window\n");
965 		CX18_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n");
966 		CX18_ERR("Use the vmalloc= kernel command line option to set "
967 			 "VmallocTotal to a larger value\n");
968 		retval = -ENOMEM;
969 		goto free_mem;
970 	}
971 	cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET;
972 	devtype = cx18_read_reg(cx, 0xC72028);
973 	switch (devtype & 0xff000000) {
974 	case 0xff000000:
975 		CX18_INFO("cx23418 revision %08x (A)\n", devtype);
976 		break;
977 	case 0x01000000:
978 		CX18_INFO("cx23418 revision %08x (B)\n", devtype);
979 		break;
980 	default:
981 		CX18_INFO("cx23418 revision %08x (Unknown)\n", devtype);
982 		break;
983 	}
984 
985 	cx18_init_power(cx, 1);
986 	cx18_init_memory(cx);
987 
988 	cx->scb = (struct cx18_scb __iomem *)(cx->enc_mem + SCB_OFFSET);
989 	cx18_init_scb(cx);
990 
991 	cx18_gpio_init(cx);
992 
993 	/* Initialize integrated A/V decoder early to set PLLs, just in case */
994 	retval = cx18_av_probe(cx);
995 	if (retval) {
996 		CX18_ERR("Could not register A/V decoder subdevice\n");
997 		goto free_map;
998 	}
999 
1000 	/* Initialize GPIO Reset Controller to do chip resets during i2c init */
1001 	if (cx->card->hw_all & CX18_HW_GPIO_RESET_CTRL) {
1002 		if (cx18_gpio_register(cx, CX18_HW_GPIO_RESET_CTRL) != 0)
1003 			CX18_WARN("Could not register GPIO reset controller"
1004 				  "subdevice; proceeding anyway.\n");
1005 		else
1006 			cx->hw_flags |= CX18_HW_GPIO_RESET_CTRL;
1007 	}
1008 
1009 	/* active i2c  */
1010 	CX18_DEBUG_INFO("activating i2c...\n");
1011 	retval = init_cx18_i2c(cx);
1012 	if (retval) {
1013 		CX18_ERR("Could not initialize i2c\n");
1014 		goto free_map;
1015 	}
1016 
1017 	if (cx->card->hw_all & CX18_HW_TVEEPROM) {
1018 		/* Based on the model number the cardtype may be changed.
1019 		   The PCI IDs are not always reliable. */
1020 		const struct cx18_card *orig_card = cx->card;
1021 		cx18_process_eeprom(cx);
1022 
1023 		if (cx->card != orig_card) {
1024 			/* Changed the cardtype; re-reset the I2C chips */
1025 			cx18_gpio_init(cx);
1026 			cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL,
1027 					core, reset, (u32) CX18_GPIO_RESET_I2C);
1028 		}
1029 	}
1030 	if (cx->card->comment)
1031 		CX18_INFO("%s", cx->card->comment);
1032 	if (cx->card->v4l2_capabilities == 0) {
1033 		retval = -ENODEV;
1034 		goto free_i2c;
1035 	}
1036 	cx18_init_memory(cx);
1037 	cx18_init_scb(cx);
1038 
1039 	/* Register IRQ */
1040 	retval = request_irq(cx->pci_dev->irq, cx18_irq_handler,
1041 			     IRQF_SHARED, cx->v4l2_dev.name, (void *)cx);
1042 	if (retval) {
1043 		CX18_ERR("Failed to register irq %d\n", retval);
1044 		goto free_i2c;
1045 	}
1046 
1047 	if (cx->std == 0)
1048 		cx->std = V4L2_STD_NTSC_M;
1049 
1050 	if (cx->options.tuner == -1) {
1051 		for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) {
1052 			if ((cx->std & cx->card->tuners[i].std) == 0)
1053 				continue;
1054 			cx->options.tuner = cx->card->tuners[i].tuner;
1055 			break;
1056 		}
1057 	}
1058 	/* if no tuner was found, then pick the first tuner in the card list */
1059 	if (cx->options.tuner == -1 && cx->card->tuners[0].std) {
1060 		cx->std = cx->card->tuners[0].std;
1061 		if (cx->std & V4L2_STD_PAL)
1062 			cx->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
1063 		else if (cx->std & V4L2_STD_NTSC)
1064 			cx->std = V4L2_STD_NTSC_M;
1065 		else if (cx->std & V4L2_STD_SECAM)
1066 			cx->std = V4L2_STD_SECAM_L;
1067 		cx->options.tuner = cx->card->tuners[0].tuner;
1068 	}
1069 	if (cx->options.radio == -1)
1070 		cx->options.radio = (cx->card->radio_input.audio_type != 0);
1071 
1072 	/* The card is now fully identified, continue with card-specific
1073 	   initialization. */
1074 	cx18_init_struct2(cx);
1075 
1076 	cx18_init_subdevs(cx);
1077 
1078 	if (cx->std & V4L2_STD_525_60)
1079 		cx->is_60hz = 1;
1080 	else
1081 		cx->is_50hz = 1;
1082 
1083 	cx2341x_handler_set_50hz(&cx->cxhdl, !cx->is_60hz);
1084 
1085 	if (cx->options.radio > 0)
1086 		cx->v4l2_cap |= V4L2_CAP_RADIO;
1087 
1088 	if (cx->options.tuner > -1) {
1089 		struct tuner_setup setup;
1090 
1091 		setup.addr = ADDR_UNSET;
1092 		setup.type = cx->options.tuner;
1093 		setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
1094 		setup.config = NULL;
1095 		if (cx->options.radio > 0)
1096 			setup.mode_mask |= T_RADIO;
1097 		setup.tuner_callback = (setup.type == TUNER_XC2028) ?
1098 			cx18_reset_tuner_gpio : NULL;
1099 		cx18_call_all(cx, tuner, s_type_addr, &setup);
1100 		if (setup.type == TUNER_XC2028) {
1101 			static struct xc2028_ctrl ctrl = {
1102 				.fname = XC2028_DEFAULT_FIRMWARE,
1103 				.max_len = 64,
1104 			};
1105 			struct v4l2_priv_tun_config cfg = {
1106 				.tuner = cx->options.tuner,
1107 				.priv = &ctrl,
1108 			};
1109 			cx18_call_all(cx, tuner, s_config, &cfg);
1110 		}
1111 	}
1112 
1113 	/* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
1114 	   are not. */
1115 	cx->tuner_std = cx->std;
1116 	if (cx->std == V4L2_STD_ALL)
1117 		cx->std = V4L2_STD_NTSC_M;
1118 
1119 	retval = cx18_streams_setup(cx);
1120 	if (retval) {
1121 		CX18_ERR("Error %d setting up streams\n", retval);
1122 		goto free_irq;
1123 	}
1124 	retval = cx18_streams_register(cx);
1125 	if (retval) {
1126 		CX18_ERR("Error %d registering devices\n", retval);
1127 		goto free_streams;
1128 	}
1129 
1130 	CX18_INFO("Initialized card: %s\n", cx->card_name);
1131 
1132 	/* Load cx18 submodules (cx18-alsa) */
1133 	request_modules(cx);
1134 	return 0;
1135 
1136 free_streams:
1137 	cx18_streams_cleanup(cx, 1);
1138 free_irq:
1139 	free_irq(cx->pci_dev->irq, (void *)cx);
1140 free_i2c:
1141 	exit_cx18_i2c(cx);
1142 free_map:
1143 	cx18_iounmap(cx);
1144 free_mem:
1145 	release_mem_region(cx->base_addr, CX18_MEM_SIZE);
1146 free_workqueues:
1147 	destroy_workqueue(cx->in_work_queue);
1148 err:
1149 	if (retval == 0)
1150 		retval = -ENODEV;
1151 	CX18_ERR("Error %d on initialization\n", retval);
1152 
1153 	v4l2_device_unregister(&cx->v4l2_dev);
1154 	kfree(cx);
1155 	return retval;
1156 }
1157 
1158 int cx18_init_on_first_open(struct cx18 *cx)
1159 {
1160 	int video_input;
1161 	int fw_retry_count = 3;
1162 	struct v4l2_frequency vf;
1163 	struct cx18_open_id fh;
1164 	v4l2_std_id std;
1165 
1166 	fh.cx = cx;
1167 
1168 	if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
1169 		return -ENXIO;
1170 
1171 	if (test_and_set_bit(CX18_F_I_INITED, &cx->i_flags))
1172 		return 0;
1173 
1174 	while (--fw_retry_count > 0) {
1175 		/* load firmware */
1176 		if (cx18_firmware_init(cx) == 0)
1177 			break;
1178 		if (fw_retry_count > 1)
1179 			CX18_WARN("Retry loading firmware\n");
1180 	}
1181 
1182 	if (fw_retry_count == 0) {
1183 		set_bit(CX18_F_I_FAILED, &cx->i_flags);
1184 		return -ENXIO;
1185 	}
1186 	set_bit(CX18_F_I_LOADED_FW, &cx->i_flags);
1187 
1188 	/*
1189 	 * Init the firmware twice to work around a silicon bug
1190 	 * with the digital TS.
1191 	 *
1192 	 * The second firmware load requires us to normalize the APU state,
1193 	 * or the audio for the first analog capture will be badly incorrect.
1194 	 *
1195 	 * I can't seem to call APU_RESETAI and have it succeed without the
1196 	 * APU capturing audio, so we start and stop it here to do the reset
1197 	 */
1198 
1199 	/* MPEG Encoding, 224 kbps, MPEG Layer II, 48 ksps */
1200 	cx18_vapi(cx, CX18_APU_START, 2, CX18_APU_ENCODING_METHOD_MPEG|0xb9, 0);
1201 	cx18_vapi(cx, CX18_APU_RESETAI, 0);
1202 	cx18_vapi(cx, CX18_APU_STOP, 1, CX18_APU_ENCODING_METHOD_MPEG);
1203 
1204 	fw_retry_count = 3;
1205 	while (--fw_retry_count > 0) {
1206 		/* load firmware */
1207 		if (cx18_firmware_init(cx) == 0)
1208 			break;
1209 		if (fw_retry_count > 1)
1210 			CX18_WARN("Retry loading firmware\n");
1211 	}
1212 
1213 	if (fw_retry_count == 0) {
1214 		set_bit(CX18_F_I_FAILED, &cx->i_flags);
1215 		return -ENXIO;
1216 	}
1217 
1218 	/*
1219 	 * The second firmware load requires us to normalize the APU state,
1220 	 * or the audio for the first analog capture will be badly incorrect.
1221 	 *
1222 	 * I can't seem to call APU_RESETAI and have it succeed without the
1223 	 * APU capturing audio, so we start and stop it here to do the reset
1224 	 */
1225 
1226 	/* MPEG Encoding, 224 kbps, MPEG Layer II, 48 ksps */
1227 	cx18_vapi(cx, CX18_APU_START, 2, CX18_APU_ENCODING_METHOD_MPEG|0xb9, 0);
1228 	cx18_vapi(cx, CX18_APU_RESETAI, 0);
1229 	cx18_vapi(cx, CX18_APU_STOP, 1, CX18_APU_ENCODING_METHOD_MPEG);
1230 
1231 	/* Init the A/V decoder, if it hasn't been already */
1232 	v4l2_subdev_call(cx->sd_av, core, load_fw);
1233 
1234 	vf.tuner = 0;
1235 	vf.type = V4L2_TUNER_ANALOG_TV;
1236 	vf.frequency = 6400; /* the tuner 'baseline' frequency */
1237 
1238 	/* Set initial frequency. For PAL/SECAM broadcasts no
1239 	   'default' channel exists AFAIK. */
1240 	if (cx->std == V4L2_STD_NTSC_M_JP)
1241 		vf.frequency = 1460;	/* ch. 1 91250*16/1000 */
1242 	else if (cx->std & V4L2_STD_NTSC_M)
1243 		vf.frequency = 1076;	/* ch. 4 67250*16/1000 */
1244 
1245 	video_input = cx->active_input;
1246 	cx->active_input++;	/* Force update of input */
1247 	cx18_s_input(NULL, &fh, video_input);
1248 
1249 	/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
1250 	   in one place. */
1251 	cx->std++;		/* Force full standard initialization */
1252 	std = (cx->tuner_std == V4L2_STD_ALL) ? V4L2_STD_NTSC_M : cx->tuner_std;
1253 	cx18_s_std(NULL, &fh, std);
1254 	cx18_s_frequency(NULL, &fh, &vf);
1255 	return 0;
1256 }
1257 
1258 static void cx18_cancel_in_work_orders(struct cx18 *cx)
1259 {
1260 	int i;
1261 	for (i = 0; i < CX18_MAX_IN_WORK_ORDERS; i++)
1262 		cancel_work_sync(&cx->in_work_order[i].work);
1263 }
1264 
1265 static void cx18_cancel_out_work_orders(struct cx18 *cx)
1266 {
1267 	int i;
1268 	for (i = 0; i < CX18_MAX_STREAMS; i++)
1269 		if (&cx->streams[i].video_dev != NULL)
1270 			cancel_work_sync(&cx->streams[i].out_work_order);
1271 }
1272 
1273 static void cx18_remove(struct pci_dev *pci_dev)
1274 {
1275 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1276 	struct cx18 *cx = to_cx18(v4l2_dev);
1277 	int i;
1278 
1279 	CX18_DEBUG_INFO("Removing Card\n");
1280 
1281 	flush_request_modules(cx);
1282 
1283 	/* Stop all captures */
1284 	CX18_DEBUG_INFO("Stopping all streams\n");
1285 	if (atomic_read(&cx->tot_capturing) > 0)
1286 		cx18_stop_all_captures(cx);
1287 
1288 	/* Stop interrupts that cause incoming work to be queued */
1289 	cx18_sw1_irq_disable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
1290 
1291 	/* Incoming work can cause outgoing work, so clean up incoming first */
1292 	cx18_cancel_in_work_orders(cx);
1293 	cx18_cancel_out_work_orders(cx);
1294 
1295 	/* Stop ack interrupts that may have been needed for work to finish */
1296 	cx18_sw2_irq_disable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
1297 
1298 	cx18_halt_firmware(cx);
1299 
1300 	destroy_workqueue(cx->in_work_queue);
1301 
1302 	cx18_streams_cleanup(cx, 1);
1303 
1304 	exit_cx18_i2c(cx);
1305 
1306 	free_irq(cx->pci_dev->irq, (void *)cx);
1307 
1308 	cx18_iounmap(cx);
1309 
1310 	release_mem_region(cx->base_addr, CX18_MEM_SIZE);
1311 
1312 	pci_disable_device(cx->pci_dev);
1313 
1314 	if (cx->vbi.sliced_mpeg_data[0] != NULL)
1315 		for (i = 0; i < CX18_VBI_FRAMES; i++)
1316 			kfree(cx->vbi.sliced_mpeg_data[i]);
1317 
1318 	v4l2_ctrl_handler_free(&cx->av_state.hdl);
1319 
1320 	CX18_INFO("Removed %s\n", cx->card_name);
1321 
1322 	v4l2_device_unregister(v4l2_dev);
1323 	kfree(cx);
1324 }
1325 
1326 
1327 /* define a pci_driver for card detection */
1328 static struct pci_driver cx18_pci_driver = {
1329       .name =     "cx18",
1330       .id_table = cx18_pci_tbl,
1331       .probe =    cx18_probe,
1332       .remove =   cx18_remove,
1333 };
1334 
1335 static int __init module_start(void)
1336 {
1337 	printk(KERN_INFO "cx18:  Start initialization, version %s\n",
1338 	       CX18_VERSION);
1339 
1340 	/* Validate parameters */
1341 	if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
1342 		printk(KERN_ERR "cx18:  Exiting, cx18_first_minor must be between 0 and %d\n",
1343 		     CX18_MAX_CARDS - 1);
1344 		return -1;
1345 	}
1346 
1347 	if (cx18_debug < 0 || cx18_debug > 511) {
1348 		cx18_debug = 0;
1349 		printk(KERN_INFO "cx18:   Debug value must be >= 0 and <= 511!\n");
1350 	}
1351 
1352 	if (pci_register_driver(&cx18_pci_driver)) {
1353 		printk(KERN_ERR "cx18:   Error detecting PCI card\n");
1354 		return -ENODEV;
1355 	}
1356 	printk(KERN_INFO "cx18:  End initialization\n");
1357 	return 0;
1358 }
1359 
1360 static void __exit module_cleanup(void)
1361 {
1362 	pci_unregister_driver(&cx18_pci_driver);
1363 }
1364 
1365 module_init(module_start);
1366 module_exit(module_cleanup);
1367 MODULE_FIRMWARE(XC2028_DEFAULT_FIRMWARE);
1368