projects / deliverable / linux.git / blob
? search:


f88f948efee2e51fd39f2e98d74d696f08924f5b
[deliverable/linux.git] / drivers / media / common / tuners / tuner-xc2028.c
1 /* tuner-xc2028
2 *
3 * Copyright (c) 2007-2008 Mauro Carvalho Chehab (mchehab@infradead.org)
4 *
5 * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com)
6 * - frontend interface
7 *
8 * This code is placed under the terms of the GNU General Public License v2
9 */
10
11 #include <linux/i2c.h>
12 #include <asm/div64.h>
13 #include <linux/firmware.h>
14 #include <linux/videodev2.h>
15 #include <linux/delay.h>
16 #include <media/tuner.h>
17 #include <linux/mutex.h>
18 #include <linux/slab.h>
19 #include <asm/unaligned.h>
20 #include "tuner-i2c.h"
21 #include "tuner-xc2028.h"
22 #include "tuner-xc2028-types.h"
23
24 #include <linux/dvb/frontend.h>
25 #include "dvb_frontend.h"
26
27 /* Registers (Write-only) */
28 #define XREG_INIT 0x00
29 #define XREG_RF_FREQ 0x02
30 #define XREG_POWER_DOWN 0x08
31
32 /* Registers (Read-only) */
33 #define XREG_FREQ_ERROR 0x01
34 #define XREG_LOCK 0x02
35 #define XREG_VERSION 0x04
36 #define XREG_PRODUCT_ID 0x08
37 #define XREG_HSYNC_FREQ 0x10
38 #define XREG_FRAME_LINES 0x20
39 #define XREG_SNR 0x40
40
41 #define XREG_ADC_ENV 0x0100
42
43 static int debug;
44 module_param(debug, int, 0644);
45 MODULE_PARM_DESC(debug, "enable verbose debug messages");
46
47 static int no_poweroff;
48 module_param(no_poweroff, int, 0644);
49 MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n"
50 "1 keep device energized and with tuner ready all the times.\n"
51 " Faster, but consumes more power and keeps the device hotter\n");
52
53 static char audio_std[8];
54 module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
55 MODULE_PARM_DESC(audio_std,
56 "Audio standard. XC3028 audio decoder explicitly "
57 "needs to know what audio\n"
58 "standard is needed for some video standards with audio A2 or NICAM.\n"
59 "The valid values are:\n"
60 "A2\n"
61 "A2/A\n"
62 "A2/B\n"
63 "NICAM\n"
64 "NICAM/A\n"
65 "NICAM/B\n");
66
67 static char firmware_name[30];
68 module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
69 MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
70 "default firmware name\n");
71
72 static LIST_HEAD(hybrid_tuner_instance_list);
73 static DEFINE_MUTEX(xc2028_list_mutex);
74
75 /* struct for storing firmware table */
76 struct firmware_description {
77 unsigned int type;
78 v4l2_std_id id;
79 __u16 int_freq;
80 unsigned char *ptr;
81 unsigned int size;
82 };
83
84 struct firmware_properties {
85 unsigned int type;
86 v4l2_std_id id;
87 v4l2_std_id std_req;
88 __u16 int_freq;
89 unsigned int scode_table;
90 int scode_nr;
91 };
92
93 enum xc2028_state {
94 XC2028_NO_FIRMWARE = 0,
95 XC2028_WAITING_FIRMWARE,
96 XC2028_ACTIVE,
97 XC2028_SLEEP,
98 XC2028_NODEV,
99 };
100
101 struct xc2028_data {
102 struct list_head hybrid_tuner_instance_list;
103 struct tuner_i2c_props i2c_props;
104 __u32 frequency;
105
106 enum xc2028_state state;
107 const char *fname;
108
109 struct firmware_description *firm;
110 int firm_size;
111 __u16 firm_version;
112
113 __u16 hwmodel;
114 __u16 hwvers;
115
116 struct xc2028_ctrl ctrl;
117
118 struct firmware_properties cur_fw;
119
120 struct mutex lock;
121 };
122
123 #define i2c_send(priv, buf, size) ({ \
124 int _rc; \
125 _rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size); \
126 if (size != _rc) \
127 tuner_info("i2c output error: rc = %d (should be %d)\n",\
128 _rc, (int)size); \
129 if (priv->ctrl.msleep) \
130 msleep(priv->ctrl.msleep); \
131 _rc; \
132 })
133
134 #define i2c_rcv(priv, buf, size) ({ \
135 int _rc; \
136 _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \
137 if (size != _rc) \
138 tuner_err("i2c input error: rc = %d (should be %d)\n", \
139 _rc, (int)size); \
140 _rc; \
141 })
142
143 #define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \
144 int _rc; \
145 _rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \
146 ibuf, isize); \
147 if (isize != _rc) \
148 tuner_err("i2c input error: rc = %d (should be %d)\n", \
149 _rc, (int)isize); \
150 if (priv->ctrl.msleep) \
151 msleep(priv->ctrl.msleep); \
152 _rc; \
153 })
154
155 #define send_seq(priv, data...) ({ \
156 static u8 _val[] = data; \
157 int _rc; \
158 if (sizeof(_val) != \
159 (_rc = tuner_i2c_xfer_send(&priv->i2c_props, \
160 _val, sizeof(_val)))) { \
161 tuner_err("Error on line %d: %d\n", __LINE__, _rc); \
162 } else if (priv->ctrl.msleep) \
163 msleep(priv->ctrl.msleep); \
164 _rc; \
165 })
166
167 static int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
168 {
169 unsigned char buf[2];
170 unsigned char ibuf[2];
171
172 tuner_dbg("%s %04x called\n", __func__, reg);
173
174 buf[0] = reg >> 8;
175 buf[1] = (unsigned char) reg;
176
177 if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2)
178 return -EIO;
179
180 *val = (ibuf[1]) | (ibuf[0] << 8);
181 return 0;
182 }
183
184 #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
185 static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
186 {
187 if (type & BASE)
188 printk("BASE ");
189 if (type & INIT1)
190 printk("INIT1 ");
191 if (type & F8MHZ)
192 printk("F8MHZ ");
193 if (type & MTS)
194 printk("MTS ");
195 if (type & D2620)
196 printk("D2620 ");
197 if (type & D2633)
198 printk("D2633 ");
199 if (type & DTV6)
200 printk("DTV6 ");
201 if (type & QAM)
202 printk("QAM ");
203 if (type & DTV7)
204 printk("DTV7 ");
205 if (type & DTV78)
206 printk("DTV78 ");
207 if (type & DTV8)
208 printk("DTV8 ");
209 if (type & FM)
210 printk("FM ");
211 if (type & INPUT1)
212 printk("INPUT1 ");
213 if (type & LCD)
214 printk("LCD ");
215 if (type & NOGD)
216 printk("NOGD ");
217 if (type & MONO)
218 printk("MONO ");
219 if (type & ATSC)
220 printk("ATSC ");
221 if (type & IF)
222 printk("IF ");
223 if (type & LG60)
224 printk("LG60 ");
225 if (type & ATI638)
226 printk("ATI638 ");
227 if (type & OREN538)
228 printk("OREN538 ");
229 if (type & OREN36)
230 printk("OREN36 ");
231 if (type & TOYOTA388)
232 printk("TOYOTA388 ");
233 if (type & TOYOTA794)
234 printk("TOYOTA794 ");
235 if (type & DIBCOM52)
236 printk("DIBCOM52 ");
237 if (type & ZARLINK456)
238 printk("ZARLINK456 ");
239 if (type & CHINA)
240 printk("CHINA ");
241 if (type & F6MHZ)
242 printk("F6MHZ ");
243 if (type & INPUT2)
244 printk("INPUT2 ");
245 if (type & SCODE)
246 printk("SCODE ");
247 if (type & HAS_IF)
248 printk("HAS_IF_%d ", int_freq);
249 }
250
251 static v4l2_std_id parse_audio_std_option(void)
252 {
253 if (strcasecmp(audio_std, "A2") == 0)
254 return V4L2_STD_A2;
255 if (strcasecmp(audio_std, "A2/A") == 0)
256 return V4L2_STD_A2_A;
257 if (strcasecmp(audio_std, "A2/B") == 0)
258 return V4L2_STD_A2_B;
259 if (strcasecmp(audio_std, "NICAM") == 0)
260 return V4L2_STD_NICAM;
261 if (strcasecmp(audio_std, "NICAM/A") == 0)
262 return V4L2_STD_NICAM_A;
263 if (strcasecmp(audio_std, "NICAM/B") == 0)
264 return V4L2_STD_NICAM_B;
265
266 return 0;
267 }
268
269 static int check_device_status(struct xc2028_data *priv)
270 {
271 switch (priv->state) {
272 case XC2028_NO_FIRMWARE:
273 case XC2028_WAITING_FIRMWARE:
274 return -EAGAIN;
275 case XC2028_ACTIVE:
276 case XC2028_SLEEP:
277 return 0;
278 case XC2028_NODEV:
279 return -ENODEV;
280 }
281 return 0;
282 }
283
284 static void free_firmware(struct xc2028_data *priv)
285 {
286 int i;
287 tuner_dbg("%s called\n", __func__);
288
289 if (!priv->firm)
290 return;
291
292 for (i = 0; i < priv->firm_size; i++)
293 kfree(priv->firm[i].ptr);
294
295 kfree(priv->firm);
296
297 priv->firm = NULL;
298 priv->firm_size = 0;
299 priv->state = XC2028_NO_FIRMWARE;
300
301 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
302 }
303
304 static int load_all_firmwares(struct dvb_frontend *fe,
305 const struct firmware *fw)
306 {
307 struct xc2028_data *priv = fe->tuner_priv;
308 const unsigned char *p, *endp;
309 int rc = 0;
310 int n, n_array;
311 char name[33];
312
313 tuner_dbg("%s called\n", __func__);
314
315 p = fw->data;
316 endp = p + fw->size;
317
318 if (fw->size < sizeof(name) - 1 + 2 + 2) {
319 tuner_err("Error: firmware file %s has invalid size!\n",
320 priv->fname);
321 goto corrupt;
322 }
323
324 memcpy(name, p, sizeof(name) - 1);
325 name[sizeof(name) - 1] = 0;
326 p += sizeof(name) - 1;
327
328 priv->firm_version = get_unaligned_le16(p);
329 p += 2;
330
331 n_array = get_unaligned_le16(p);
332 p += 2;
333
334 tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
335 n_array, priv->fname, name,
336 priv->firm_version >> 8, priv->firm_version & 0xff);
337
338 priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);
339 if (priv->firm == NULL) {
340 tuner_err("Not enough memory to load firmware file.\n");
341 rc = -ENOMEM;
342 goto err;
343 }
344 priv->firm_size = n_array;
345
346 n = -1;
347 while (p < endp) {
348 __u32 type, size;
349 v4l2_std_id id;
350 __u16 int_freq = 0;
351
352 n++;
353 if (n >= n_array) {
354 tuner_err("More firmware images in file than "
355 "were expected!\n");
356 goto corrupt;
357 }
358
359 /* Checks if there's enough bytes to read */
360 if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
361 goto header;
362
363 type = get_unaligned_le32(p);
364 p += sizeof(type);
365
366 id = get_unaligned_le64(p);
367 p += sizeof(id);
368
369 if (type & HAS_IF) {
370 int_freq = get_unaligned_le16(p);
371 p += sizeof(int_freq);
372 if (endp - p < sizeof(size))
373 goto header;
374 }
375
376 size = get_unaligned_le32(p);
377 p += sizeof(size);
378
379 if (!size || size > endp - p) {
380 tuner_err("Firmware type ");
381 dump_firm_type(type);
382 printk("(%x), id %llx is corrupted "
383 "(size=%d, expected %d)\n",
384 type, (unsigned long long)id,
385 (unsigned)(endp - p), size);
386 goto corrupt;
387 }
388
389 priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
390 if (priv->firm[n].ptr == NULL) {
391 tuner_err("Not enough memory to load firmware file.\n");
392 rc = -ENOMEM;
393 goto err;
394 }
395 tuner_dbg("Reading firmware type ");
396 if (debug) {
397 dump_firm_type_and_int_freq(type, int_freq);
398 printk("(%x), id %llx, size=%d.\n",
399 type, (unsigned long long)id, size);
400 }
401
402 memcpy(priv->firm[n].ptr, p, size);
403 priv->firm[n].type = type;
404 priv->firm[n].id = id;
405 priv->firm[n].size = size;
406 priv->firm[n].int_freq = int_freq;
407
408 p += size;
409 }
410
411 if (n + 1 != priv->firm_size) {
412 tuner_err("Firmware file is incomplete!\n");
413 goto corrupt;
414 }
415
416 goto done;
417
418 header:
419 tuner_err("Firmware header is incomplete!\n");
420 corrupt:
421 rc = -EINVAL;
422 tuner_err("Error: firmware file is corrupted!\n");
423
424 err:
425 tuner_info("Releasing partially loaded firmware file.\n");
426 free_firmware(priv);
427
428 done:
429 if (rc == 0)
430 tuner_dbg("Firmware files loaded.\n");
431 else
432 priv->state = XC2028_NODEV;
433
434 return rc;
435 }
436
437 static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
438 v4l2_std_id *id)
439 {
440 struct xc2028_data *priv = fe->tuner_priv;
441 int i, best_i = -1, best_nr_matches = 0;
442 unsigned int type_mask = 0;
443
444 tuner_dbg("%s called, want type=", __func__);
445 if (debug) {
446 dump_firm_type(type);
447 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
448 }
449
450 if (!priv->firm) {
451 tuner_err("Error! firmware not loaded\n");
452 return -EINVAL;
453 }
454
455 if (((type & ~SCODE) == 0) && (*id == 0))
456 *id = V4L2_STD_PAL;
457
458 if (type & BASE)
459 type_mask = BASE_TYPES;
460 else if (type & SCODE) {
461 type &= SCODE_TYPES;
462 type_mask = SCODE_TYPES & ~HAS_IF;
463 } else if (type & DTV_TYPES)
464 type_mask = DTV_TYPES;
465 else if (type & STD_SPECIFIC_TYPES)
466 type_mask = STD_SPECIFIC_TYPES;
467
468 type &= type_mask;
469
470 if (!(type & SCODE))
471 type_mask = ~0;
472
473 /* Seek for exact match */
474 for (i = 0; i < priv->firm_size; i++) {
475 if ((type == (priv->firm[i].type & type_mask)) &&
476 (*id == priv->firm[i].id))
477 goto found;
478 }
479
480 /* Seek for generic video standard match */
481 for (i = 0; i < priv->firm_size; i++) {
482 v4l2_std_id match_mask;
483 int nr_matches;
484
485 if (type != (priv->firm[i].type & type_mask))
486 continue;
487
488 match_mask = *id & priv->firm[i].id;
489 if (!match_mask)
490 continue;
491
492 if ((*id & match_mask) == *id)
493 goto found; /* Supports all the requested standards */
494
495 nr_matches = hweight64(match_mask);
496 if (nr_matches > best_nr_matches) {
497 best_nr_matches = nr_matches;
498 best_i = i;
499 }
500 }
501
502 if (best_nr_matches > 0) {
503 tuner_dbg("Selecting best matching firmware (%d bits) for "
504 "type=", best_nr_matches);
505 dump_firm_type(type);
506 printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
507 i = best_i;
508 goto found;
509 }
510
511 /*FIXME: Would make sense to seek for type "hint" match ? */
512
513 i = -ENOENT;
514 goto ret;
515
516 found:
517 *id = priv->firm[i].id;
518
519 ret:
520 tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
521 if (debug) {
522 dump_firm_type(type);
523 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
524 }
525 return i;
526 }
527
528 static inline int do_tuner_callback(struct dvb_frontend *fe, int cmd, int arg)
529 {
530 struct xc2028_data *priv = fe->tuner_priv;
531
532 /* analog side (tuner-core) uses i2c_adap->algo_data.
533 * digital side is not guaranteed to have algo_data defined.
534 *
535 * digital side will always have fe->dvb defined.
536 * analog side (tuner-core) doesn't (yet) define fe->dvb.
537 */
538
539 return (!fe->callback) ? -EINVAL :
540 fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
541 fe->dvb->priv : priv->i2c_props.adap->algo_data,
542 DVB_FRONTEND_COMPONENT_TUNER, cmd, arg);
543 }
544
545 static int load_firmware(struct dvb_frontend *fe, unsigned int type,
546 v4l2_std_id *id)
547 {
548 struct xc2028_data *priv = fe->tuner_priv;
549 int pos, rc;
550 unsigned char *p, *endp, buf[priv->ctrl.max_len];
551
552 tuner_dbg("%s called\n", __func__);
553
554 pos = seek_firmware(fe, type, id);
555 if (pos < 0)
556 return pos;
557
558 tuner_info("Loading firmware for type=");
559 dump_firm_type(priv->firm[pos].type);
560 printk("(%x), id %016llx.\n", priv->firm[pos].type,
561 (unsigned long long)*id);
562
563 p = priv->firm[pos].ptr;
564 endp = p + priv->firm[pos].size;
565
566 while (p < endp) {
567 __u16 size;
568
569 /* Checks if there's enough bytes to read */
570 if (p + sizeof(size) > endp) {
571 tuner_err("Firmware chunk size is wrong\n");
572 return -EINVAL;
573 }
574
575 size = le16_to_cpu(*(__u16 *) p);
576 p += sizeof(size);
577
578 if (size == 0xffff)
579 return 0;
580
581 if (!size) {
582 /* Special callback command received */
583 rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
584 if (rc < 0) {
585 tuner_err("Error at RESET code %d\n",
586 (*p) & 0x7f);
587 return -EINVAL;
588 }
589 continue;
590 }
591 if (size >= 0xff00) {
592 switch (size) {
593 case 0xff00:
594 rc = do_tuner_callback(fe, XC2028_RESET_CLK, 0);
595 if (rc < 0) {
596 tuner_err("Error at RESET code %d\n",
597 (*p) & 0x7f);
598 return -EINVAL;
599 }
600 break;
601 default:
602 tuner_info("Invalid RESET code %d\n",
603 size & 0x7f);
604 return -EINVAL;
605
606 }
607 continue;
608 }
609
610 /* Checks for a sleep command */
611 if (size & 0x8000) {
612 msleep(size & 0x7fff);
613 continue;
614 }
615
616 if ((size + p > endp)) {
617 tuner_err("missing bytes: need %d, have %d\n",
618 size, (int)(endp - p));
619 return -EINVAL;
620 }
621
622 buf[0] = *p;
623 p++;
624 size--;
625
626 /* Sends message chunks */
627 while (size > 0) {
628 int len = (size < priv->ctrl.max_len - 1) ?
629 size : priv->ctrl.max_len - 1;
630
631 memcpy(buf + 1, p, len);
632
633 rc = i2c_send(priv, buf, len + 1);
634 if (rc < 0) {
635 tuner_err("%d returned from send\n", rc);
636 return -EINVAL;
637 }
638
639 p += len;
640 size -= len;
641 }
642
643 /* silently fail if the frontend doesn't support I2C flush */
644 rc = do_tuner_callback(fe, XC2028_I2C_FLUSH, 0);
645 if ((rc < 0) && (rc != -EINVAL)) {
646 tuner_err("error executing flush: %d\n", rc);
647 return rc;
648 }
649 }
650 return 0;
651 }
652
653 static int load_scode(struct dvb_frontend *fe, unsigned int type,
654 v4l2_std_id *id, __u16 int_freq, int scode)
655 {
656 struct xc2028_data *priv = fe->tuner_priv;
657 int pos, rc;
658 unsigned char *p;
659
660 tuner_dbg("%s called\n", __func__);
661
662 if (!int_freq) {
663 pos = seek_firmware(fe, type, id);
664 if (pos < 0)
665 return pos;
666 } else {
667 for (pos = 0; pos < priv->firm_size; pos++) {
668 if ((priv->firm[pos].int_freq == int_freq) &&
669 (priv->firm[pos].type & HAS_IF))
670 break;
671 }
672 if (pos == priv->firm_size)
673 return -ENOENT;
674 }
675
676 p = priv->firm[pos].ptr;
677
678 if (priv->firm[pos].type & HAS_IF) {
679 if (priv->firm[pos].size != 12 * 16 || scode >= 16)
680 return -EINVAL;
681 p += 12 * scode;
682 } else {
683 /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
684 * has a 2-byte size header in the firmware format. */
685 if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
686 le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
687 return -EINVAL;
688 p += 14 * scode + 2;
689 }
690
691 tuner_info("Loading SCODE for type=");
692 dump_firm_type_and_int_freq(priv->firm[pos].type,
693 priv->firm[pos].int_freq);
694 printk("(%x), id %016llx.\n", priv->firm[pos].type,
695 (unsigned long long)*id);
696
697 if (priv->firm_version < 0x0202)
698 rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
699 else
700 rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
701 if (rc < 0)
702 return -EIO;
703
704 rc = i2c_send(priv, p, 12);
705 if (rc < 0)
706 return -EIO;
707
708 rc = send_seq(priv, {0x00, 0x8c});
709 if (rc < 0)
710 return -EIO;
711
712 return 0;
713 }
714
715 static int check_firmware(struct dvb_frontend *fe, unsigned int type,
716 v4l2_std_id std, __u16 int_freq)
717 {
718 struct xc2028_data *priv = fe->tuner_priv;
719 struct firmware_properties new_fw;
720 int rc, retry_count = 0;
721 u16 version, hwmodel;
722 v4l2_std_id std0;
723
724 tuner_dbg("%s called\n", __func__);
725
726 rc = check_device_status(priv);
727 if (rc < 0)
728 return rc;
729
730 if (priv->ctrl.mts && !(type & FM))
731 type |= MTS;
732
733 retry:
734 new_fw.type = type;
735 new_fw.id = std;
736 new_fw.std_req = std;
737 new_fw.scode_table = SCODE | priv->ctrl.scode_table;
738 new_fw.scode_nr = 0;
739 new_fw.int_freq = int_freq;
740
741 tuner_dbg("checking firmware, user requested type=");
742 if (debug) {
743 dump_firm_type(new_fw.type);
744 printk("(%x), id %016llx, ", new_fw.type,
745 (unsigned long long)new_fw.std_req);
746 if (!int_freq) {
747 printk("scode_tbl ");
748 dump_firm_type(priv->ctrl.scode_table);
749 printk("(%x), ", priv->ctrl.scode_table);
750 } else
751 printk("int_freq %d, ", new_fw.int_freq);
752 printk("scode_nr %d\n", new_fw.scode_nr);
753 }
754
755 /*
756 * No need to reload base firmware if it matches and if the tuner
757 * is not at sleep mode
758 */
759 if ((priv->state = XC2028_ACTIVE) &&
760 (((BASE | new_fw.type) & BASE_TYPES) ==
761 (priv->cur_fw.type & BASE_TYPES))) {
762 tuner_dbg("BASE firmware not changed.\n");
763 goto skip_base;
764 }
765
766 /* Updating BASE - forget about all currently loaded firmware */
767 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
768
769 /* Reset is needed before loading firmware */
770 rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
771 if (rc < 0)
772 goto fail;
773
774 /* BASE firmwares are all std0 */
775 std0 = 0;
776 rc = load_firmware(fe, BASE | new_fw.type, &std0);
777 if (rc < 0) {
778 tuner_err("Error %d while loading base firmware\n",
779 rc);
780 goto fail;
781 }
782
783 /* Load INIT1, if needed */
784 tuner_dbg("Load init1 firmware, if exists\n");
785
786 rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
787 if (rc == -ENOENT)
788 rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
789 &std0);
790 if (rc < 0 && rc != -ENOENT) {
791 tuner_err("Error %d while loading init1 firmware\n",
792 rc);
793 goto fail;
794 }
795
796 skip_base:
797 /*
798 * No need to reload standard specific firmware if base firmware
799 * was not reloaded and requested video standards have not changed.
800 */
801 if (priv->cur_fw.type == (BASE | new_fw.type) &&
802 priv->cur_fw.std_req == std) {
803 tuner_dbg("Std-specific firmware already loaded.\n");
804 goto skip_std_specific;
805 }
806
807 /* Reloading std-specific firmware forces a SCODE update */
808 priv->cur_fw.scode_table = 0;
809
810 rc = load_firmware(fe, new_fw.type, &new_fw.id);
811 if (rc == -ENOENT)
812 rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
813
814 if (rc < 0)
815 goto fail;
816
817 skip_std_specific:
818 if (priv->cur_fw.scode_table == new_fw.scode_table &&
819 priv->cur_fw.scode_nr == new_fw.scode_nr) {
820 tuner_dbg("SCODE firmware already loaded.\n");
821 goto check_device;
822 }
823
824 if (new_fw.type & FM)
825 goto check_device;
826
827 /* Load SCODE firmware, if exists */
828 tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
829
830 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
831 new_fw.int_freq, new_fw.scode_nr);
832
833 check_device:
834 if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
835 xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
836 tuner_err("Unable to read tuner registers.\n");
837 goto fail;
838 }
839
840 tuner_dbg("Device is Xceive %d version %d.%d, "
841 "firmware version %d.%d\n",
842 hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
843 (version & 0xf0) >> 4, version & 0xf);
844
845
846 if (priv->ctrl.read_not_reliable)
847 goto read_not_reliable;
848
849 /* Check firmware version against what we downloaded. */
850 if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
851 if (!priv->ctrl.read_not_reliable) {
852 tuner_err("Incorrect readback of firmware version.\n");
853 goto fail;
854 } else {
855 tuner_err("Returned an incorrect version. However, "
856 "read is not reliable enough. Ignoring it.\n");
857 hwmodel = 3028;
858 }
859 }
860
861 /* Check that the tuner hardware model remains consistent over time. */
862 if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
863 priv->hwmodel = hwmodel;
864 priv->hwvers = version & 0xff00;
865 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
866 priv->hwvers != (version & 0xff00)) {
867 tuner_err("Read invalid device hardware information - tuner "
868 "hung?\n");
869 goto fail;
870 }
871
872 read_not_reliable:
873 memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
874
875 /*
876 * By setting BASE in cur_fw.type only after successfully loading all
877 * firmwares, we can:
878 * 1. Identify that BASE firmware with type=0 has been loaded;
879 * 2. Tell whether BASE firmware was just changed the next time through.
880 */
881 priv->cur_fw.type |= BASE;
882 priv->state = XC2028_ACTIVE;
883
884 return 0;
885
886 fail:
887 priv->state = XC2028_SLEEP;
888
889 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
890 if (retry_count < 8) {
891 msleep(50);
892 retry_count++;
893 tuner_dbg("Retrying firmware load\n");
894 goto retry;
895 }
896
897 if (rc == -ENOENT)
898 rc = -EINVAL;
899 return rc;
900 }
901
902 static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
903 {
904 struct xc2028_data *priv = fe->tuner_priv;
905 u16 frq_lock, signal = 0;
906 int rc, i;
907
908 tuner_dbg("%s called\n", __func__);
909
910 rc = check_device_status(priv);
911 if (rc < 0)
912 return rc;
913
914 mutex_lock(&priv->lock);
915
916 /* Sync Lock Indicator */
917 for (i = 0; i < 3; i++) {
918 rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
919 if (rc < 0)
920 goto ret;
921
922 if (frq_lock)
923 break;
924 msleep(6);
925 }
926
927 /* Frequency didn't lock */
928 if (frq_lock == 2)
929 goto ret;
930
931 /* Get SNR of the video signal */
932 rc = xc2028_get_reg(priv, XREG_SNR, &signal);
933 if (rc < 0)
934 goto ret;
935
936 /* Signal level is 3 bits only */
937
938 signal = ((1 << 12) - 1) | ((signal & 0x07) << 12);
939
940 ret:
941 mutex_unlock(&priv->lock);
942
943 *strength = signal;
944
945 tuner_dbg("signal strength is %d\n", signal);
946
947 return rc;
948 }
949
950 static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc)
951 {
952 struct xc2028_data *priv = fe->tuner_priv;
953 int i, rc;
954 u16 frq_lock = 0;
955 s16 afc_reg = 0;
956
957 rc = check_device_status(priv);
958 if (rc < 0)
959 return rc;
960
961 mutex_lock(&priv->lock);
962
963 /* Sync Lock Indicator */
964 for (i = 0; i < 3; i++) {
965 rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
966 if (rc < 0)
967 goto ret;
968
969 if (frq_lock)
970 break;
971 msleep(6);
972 }
973
974 /* Frequency didn't lock */
975 if (frq_lock == 2)
976 goto ret;
977
978 /* Get AFC */
979 rc = xc2028_get_reg(priv, XREG_FREQ_ERROR, &afc_reg);
980 if (rc < 0)
981 return rc;
982
983 *afc = afc_reg * 15625; /* Hz */
984
985 tuner_dbg("AFC is %d Hz\n", *afc);
986
987 ret:
988 mutex_unlock(&priv->lock);
989
990 return rc;
991 }
992
993 #define DIV 15625
994
995 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
996 enum v4l2_tuner_type new_type,
997 unsigned int type,
998 v4l2_std_id std,
999 u16 int_freq)
1000 {
1001 struct xc2028_data *priv = fe->tuner_priv;
1002 int rc = -EINVAL;
1003 unsigned char buf[4];
1004 u32 div, offset = 0;
1005
1006 tuner_dbg("%s called\n", __func__);
1007
1008 mutex_lock(&priv->lock);
1009
1010 tuner_dbg("should set frequency %d kHz\n", freq / 1000);
1011
1012 if (check_firmware(fe, type, std, int_freq) < 0)
1013 goto ret;
1014
1015 /* On some cases xc2028 can disable video output, if
1016 * very weak signals are received. By sending a soft
1017 * reset, this is re-enabled. So, it is better to always
1018 * send a soft reset before changing channels, to be sure
1019 * that xc2028 will be in a safe state.
1020 * Maybe this might also be needed for DTV.
1021 */
1022 switch (new_type) {
1023 case V4L2_TUNER_ANALOG_TV:
1024 rc = send_seq(priv, {0x00, 0x00});
1025
1026 /* Analog mode requires offset = 0 */
1027 break;
1028 case V4L2_TUNER_RADIO:
1029 /* Radio mode requires offset = 0 */
1030 break;
1031 case V4L2_TUNER_DIGITAL_TV:
1032 /*
1033 * Digital modes require an offset to adjust to the
1034 * proper frequency. The offset depends on what
1035 * firmware version is used.
1036 */
1037
1038 /*
1039 * Adjust to the center frequency. This is calculated by the
1040 * formula: offset = 1.25MHz - BW/2
1041 * For DTV 7/8, the firmware uses BW = 8000, so it needs a
1042 * further adjustment to get the frequency center on VHF
1043 */
1044
1045 /*
1046 * The firmware DTV78 used to work fine in UHF band (8 MHz
1047 * bandwidth) but not at all in VHF band (7 MHz bandwidth).
1048 * The real problem was connected to the formula used to
1049 * calculate the center frequency offset in VHF band.
1050 * In fact, removing the 500KHz adjustment fixed the problem.
1051 * This is coherent to what was implemented for the DTV7
1052 * firmware.
1053 * In the end, now the center frequency is the same for all 3
1054 * firmwares (DTV7, DTV8, DTV78) and doesn't depend on channel
1055 * bandwidth.
1056 */
1057
1058 if (priv->cur_fw.type & DTV6)
1059 offset = 1750000;
1060 else /* DTV7 or DTV8 or DTV78 */
1061 offset = 2750000;
1062
1063 /*
1064 * xc3028 additional "magic"
1065 * Depending on the firmware version, it needs some adjustments
1066 * to properly centralize the frequency. This seems to be
1067 * needed to compensate the SCODE table adjustments made by
1068 * newer firmwares
1069 */
1070
1071 /*
1072 * The proper adjustment would be to do it at s-code table.
1073 * However, this didn't work, as reported by
1074 * Robert Lowery <rglowery@exemail.com.au>
1075 */
1076
1077 #if 0
1078 /*
1079 * Still need tests for XC3028L (firmware 3.2 or upper)
1080 * So, for now, let's just comment the per-firmware
1081 * version of this change. Reports with xc3028l working
1082 * with and without the lines bellow are welcome
1083 */
1084
1085 if (priv->firm_version < 0x0302) {
1086 if (priv->cur_fw.type & DTV7)
1087 offset += 500000;
1088 } else {
1089 if (priv->cur_fw.type & DTV7)
1090 offset -= 300000;
1091 else if (type != ATSC) /* DVB @6MHz, DTV 8 and DTV 7/8 */
1092 offset += 200000;
1093 }
1094 #endif
1095 }
1096
1097 div = (freq - offset + DIV / 2) / DIV;
1098
1099 /* CMD= Set frequency */
1100 if (priv->firm_version < 0x0202)
1101 rc = send_seq(priv, {0x00, XREG_RF_FREQ, 0x00, 0x00});
1102 else
1103 rc = send_seq(priv, {0x80, XREG_RF_FREQ, 0x00, 0x00});
1104 if (rc < 0)
1105 goto ret;
1106
1107 /* Return code shouldn't be checked.
1108 The reset CLK is needed only with tm6000.
1109 Driver should work fine even if this fails.
1110 */
1111 if (priv->ctrl.msleep)
1112 msleep(priv->ctrl.msleep);
1113 do_tuner_callback(fe, XC2028_RESET_CLK, 1);
1114
1115 msleep(10);
1116
1117 buf[0] = 0xff & (div >> 24);
1118 buf[1] = 0xff & (div >> 16);
1119 buf[2] = 0xff & (div >> 8);
1120 buf[3] = 0xff & (div);
1121
1122 rc = i2c_send(priv, buf, sizeof(buf));
1123 if (rc < 0)
1124 goto ret;
1125 msleep(100);
1126
1127 priv->frequency = freq;
1128
1129 tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n",
1130 buf[0], buf[1], buf[2], buf[3],
1131 freq / 1000000, (freq % 1000000) / 1000);
1132
1133 rc = 0;
1134
1135 ret:
1136 mutex_unlock(&priv->lock);
1137
1138 return rc;
1139 }
1140
1141 static int xc2028_set_analog_freq(struct dvb_frontend *fe,
1142 struct analog_parameters *p)
1143 {
1144 struct xc2028_data *priv = fe->tuner_priv;
1145 unsigned int type=0;
1146
1147 tuner_dbg("%s called\n", __func__);
1148
1149 if (p->mode == V4L2_TUNER_RADIO) {
1150 type |= FM;
1151 if (priv->ctrl.input1)
1152 type |= INPUT1;
1153 return generic_set_freq(fe, (625l * p->frequency) / 10,
1154 V4L2_TUNER_RADIO, type, 0, 0);
1155 }
1156
1157 /* if std is not defined, choose one */
1158 if (!p->std)
1159 p->std = V4L2_STD_MN;
1160
1161 /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
1162 if (!(p->std & V4L2_STD_MN))
1163 type |= F8MHZ;
1164
1165 /* Add audio hack to std mask */
1166 p->std |= parse_audio_std_option();
1167
1168 return generic_set_freq(fe, 62500l * p->frequency,
1169 V4L2_TUNER_ANALOG_TV, type, p->std, 0);
1170 }
1171
1172 static int xc2028_set_params(struct dvb_frontend *fe)
1173 {
1174 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1175 u32 delsys = c->delivery_system;
1176 u32 bw = c->bandwidth_hz;
1177 struct xc2028_data *priv = fe->tuner_priv;
1178 int rc;
1179 unsigned int type = 0;
1180 u16 demod = 0;
1181
1182 tuner_dbg("%s called\n", __func__);
1183
1184 rc = check_device_status(priv);
1185 if (rc < 0)
1186 return rc;
1187
1188 switch (delsys) {
1189 case SYS_DVBT:
1190 case SYS_DVBT2:
1191 /*
1192 * The only countries with 6MHz seem to be Taiwan/Uruguay.
1193 * Both seem to require QAM firmware for OFDM decoding
1194 * Tested in Taiwan by Terry Wu <terrywu2009@gmail.com>
1195 */
1196 if (bw <= 6000000)
1197 type |= QAM;
1198
1199 switch (priv->ctrl.type) {
1200 case XC2028_D2633:
1201 type |= D2633;
1202 break;
1203 case XC2028_D2620:
1204 type |= D2620;
1205 break;
1206 case XC2028_AUTO:
1207 default:
1208 /* Zarlink seems to need D2633 */
1209 if (priv->ctrl.demod == XC3028_FE_ZARLINK456)
1210 type |= D2633;
1211 else
1212 type |= D2620;
1213 }
1214 break;
1215 case SYS_ATSC:
1216 /* The only ATSC firmware (at least on v2.7) is D2633 */
1217 type |= ATSC | D2633;
1218 break;
1219 /* DVB-S and pure QAM (FE_QAM) are not supported */
1220 default:
1221 return -EINVAL;
1222 }
1223
1224 if (bw <= 6000000) {
1225 type |= DTV6;
1226 priv->ctrl.vhfbw7 = 0;
1227 priv->ctrl.uhfbw8 = 0;
1228 } else if (bw <= 7000000) {
1229 if (c->frequency < 470000000)
1230 priv->ctrl.vhfbw7 = 1;
1231 else
1232 priv->ctrl.uhfbw8 = 0;
1233 type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7;
1234 type |= F8MHZ;
1235 } else {
1236 if (c->frequency < 470000000)
1237 priv->ctrl.vhfbw7 = 0;
1238 else
1239 priv->ctrl.uhfbw8 = 1;
1240 type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8;
1241 type |= F8MHZ;
1242 }
1243
1244 /* All S-code tables need a 200kHz shift */
1245 if (priv->ctrl.demod) {
1246 demod = priv->ctrl.demod;
1247
1248 /*
1249 * Newer firmwares require a 200 kHz offset only for ATSC
1250 */
1251 if (type == ATSC || priv->firm_version < 0x0302)
1252 demod += 200;
1253 /*
1254 * The DTV7 S-code table needs a 700 kHz shift.
1255 *
1256 * DTV7 is only used in Australia. Germany or Italy may also
1257 * use this firmware after initialization, but a tune to a UHF
1258 * channel should then cause DTV78 to be used.
1259 *
1260 * Unfortunately, on real-field tests, the s-code offset
1261 * didn't work as expected, as reported by
1262 * Robert Lowery <rglowery@exemail.com.au>
1263 */
1264 }
1265
1266 return generic_set_freq(fe, c->frequency,
1267 V4L2_TUNER_DIGITAL_TV, type, 0, demod);
1268 }
1269
1270 static int xc2028_sleep(struct dvb_frontend *fe)
1271 {
1272 struct xc2028_data *priv = fe->tuner_priv;
1273 int rc;
1274
1275 rc = check_device_status(priv);
1276 if (rc < 0)
1277 return rc;
1278
1279 /* Avoid firmware reload on slow devices or if PM disabled */
1280 if (no_poweroff || priv->ctrl.disable_power_mgmt)
1281 return 0;
1282
1283 tuner_dbg("Putting xc2028/3028 into poweroff mode.\n");
1284 if (debug > 1) {
1285 tuner_dbg("Printing sleep stack trace:\n");
1286 dump_stack();
1287 }
1288
1289 mutex_lock(&priv->lock);
1290
1291 if (priv->firm_version < 0x0202)
1292 rc = send_seq(priv, {0x00, XREG_POWER_DOWN, 0x00, 0x00});
1293 else
1294 rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00});
1295
1296 priv->state = XC2028_SLEEP;
1297
1298 mutex_unlock(&priv->lock);
1299
1300 return rc;
1301 }
1302
1303 static int xc2028_dvb_release(struct dvb_frontend *fe)
1304 {
1305 struct xc2028_data *priv = fe->tuner_priv;
1306
1307 tuner_dbg("%s called\n", __func__);
1308
1309 mutex_lock(&xc2028_list_mutex);
1310
1311 /* only perform final cleanup if this is the last instance */
1312 if (hybrid_tuner_report_instance_count(priv) == 1) {
1313 free_firmware(priv);
1314 kfree(priv->ctrl.fname);
1315 priv->ctrl.fname = NULL;
1316 }
1317
1318 if (priv)
1319 hybrid_tuner_release_state(priv);
1320
1321 mutex_unlock(&xc2028_list_mutex);
1322
1323 fe->tuner_priv = NULL;
1324
1325 return 0;
1326 }
1327
1328 static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1329 {
1330 struct xc2028_data *priv = fe->tuner_priv;
1331 int rc;
1332
1333 tuner_dbg("%s called\n", __func__);
1334
1335 rc = check_device_status(priv);
1336 if (rc < 0)
1337 return rc;
1338
1339 *frequency = priv->frequency;
1340
1341 return 0;
1342 }
1343
1344 static void load_firmware_cb(const struct firmware *fw,
1345 void *context)
1346 {
1347 struct dvb_frontend *fe = context;
1348 struct xc2028_data *priv = fe->tuner_priv;
1349 int rc;
1350
1351 tuner_dbg("request_firmware_nowait(): %s\n", fw ? "OK" : "error");
1352 if (!fw) {
1353 tuner_err("Could not load firmware %s.\n", priv->fname);
1354 priv->state = XC2028_NODEV;
1355 return;
1356 }
1357
1358 rc = load_all_firmwares(fe, fw);
1359
1360 release_firmware(fw);
1361
1362 if (rc < 0)
1363 return;
1364 priv->state = XC2028_SLEEP;
1365 }
1366
1367 static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
1368 {
1369 struct xc2028_data *priv = fe->tuner_priv;
1370 struct xc2028_ctrl *p = priv_cfg;
1371 int rc = 0;
1372
1373 tuner_dbg("%s called\n", __func__);
1374
1375 mutex_lock(&priv->lock);
1376
1377 /*
1378 * Copy the config data.
1379 * For the firmware name, keep a local copy of the string,
1380 * in order to avoid troubles during device release.
1381 */
1382 if (priv->ctrl.fname)
1383 kfree(priv->ctrl.fname);
1384 memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
1385 if (p->fname) {
1386 priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
1387 if (priv->ctrl.fname == NULL)
1388 rc = -ENOMEM;
1389 }
1390
1391 /*
1392 * If firmware name changed, frees firmware. As free_firmware will
1393 * reset the status to NO_FIRMWARE, this forces a new request_firmware
1394 */
1395 if (!firmware_name[0] && p->fname &&
1396 priv->fname && strcmp(p->fname, priv->fname))
1397 free_firmware(priv);
1398
1399 if (priv->ctrl.max_len < 9)
1400 priv->ctrl.max_len = 13;
1401
1402 if (priv->state == XC2028_NO_FIRMWARE) {
1403 if (!firmware_name[0])
1404 priv->fname = priv->ctrl.fname;
1405 else
1406 priv->fname = firmware_name;
1407
1408 rc = request_firmware_nowait(THIS_MODULE, 1,
1409 priv->fname,
1410 priv->i2c_props.adap->dev.parent,
1411 GFP_KERNEL,
1412 fe, load_firmware_cb);
1413 if (rc < 0) {
1414 tuner_err("Failed to request firmware %s\n",
1415 priv->fname);
1416 priv->state = XC2028_NODEV;
1417 }
1418 priv->state = XC2028_WAITING_FIRMWARE;
1419 }
1420 mutex_unlock(&priv->lock);
1421
1422 return rc;
1423 }
1424
1425 static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
1426 .info = {
1427 .name = "Xceive XC3028",
1428 .frequency_min = 42000000,
1429 .frequency_max = 864000000,
1430 .frequency_step = 50000,
1431 },
1432
1433 .set_config = xc2028_set_config,
1434 .set_analog_params = xc2028_set_analog_freq,
1435 .release = xc2028_dvb_release,
1436 .get_frequency = xc2028_get_frequency,
1437 .get_rf_strength = xc2028_signal,
1438 .get_afc = xc2028_get_afc,
1439 .set_params = xc2028_set_params,
1440 .sleep = xc2028_sleep,
1441 };
1442
1443 struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
1444 struct xc2028_config *cfg)
1445 {
1446 struct xc2028_data *priv;
1447 int instance;
1448
1449 if (debug)
1450 printk(KERN_DEBUG "xc2028: Xcv2028/3028 init called!\n");
1451
1452 if (NULL == cfg)
1453 return NULL;
1454
1455 if (!fe) {
1456 printk(KERN_ERR "xc2028: No frontend!\n");
1457 return NULL;
1458 }
1459
1460 mutex_lock(&xc2028_list_mutex);
1461
1462 instance = hybrid_tuner_request_state(struct xc2028_data, priv,
1463 hybrid_tuner_instance_list,
1464 cfg->i2c_adap, cfg->i2c_addr,
1465 "xc2028");
1466 switch (instance) {
1467 case 0:
1468 /* memory allocation failure */
1469 goto fail;
1470 break;
1471 case 1:
1472 /* new tuner instance */
1473 priv->ctrl.max_len = 13;
1474
1475 mutex_init(&priv->lock);
1476
1477 fe->tuner_priv = priv;
1478 break;
1479 case 2:
1480 /* existing tuner instance */
1481 fe->tuner_priv = priv;
1482 break;
1483 }
1484
1485 memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
1486 sizeof(xc2028_dvb_tuner_ops));
1487
1488 tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
1489
1490 if (cfg->ctrl)
1491 xc2028_set_config(fe, cfg->ctrl);
1492
1493 mutex_unlock(&xc2028_list_mutex);
1494
1495 return fe;
1496 fail:
1497 mutex_unlock(&xc2028_list_mutex);
1498
1499 xc2028_dvb_release(fe);
1500 return NULL;
1501 }
1502
1503 EXPORT_SYMBOL(xc2028_attach);
1504
1505 MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
1506 MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
1507 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
1508 MODULE_LICENSE("GPL");
1509 MODULE_FIRMWARE(XC2028_DEFAULT_FIRMWARE);
1510 MODULE_FIRMWARE(XC3028L_DEFAULT_FIRMWARE);
Linux kernel - Deliverables
This page took 0.062441 seconds and 4 git commands to generate.