3 * Copyright (c) 2007 Mauro Carvalho Chehab (mchehab@infradead.org)
5 * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com)
8 * This code is placed under the terms of the GNU General Public License v2
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 "tuner-i2c.h"
19 #include "tuner-xc2028.h"
20 #include "tuner-xc2028-types.h"
22 #include <linux/dvb/frontend.h>
23 #include "dvb_frontend.h"
26 #define PREFIX "xc2028"
29 module_param(debug, int, 0644);
30 MODULE_PARM_DESC(debug, "enable verbose debug messages");
32 static char audio_std[8];
33 module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
34 MODULE_PARM_DESC(audio_std,
35 "Audio standard. XC3028 audio decoder explicitly "
36 "needs to know what audio\n"
37 "standard is needed for some video standards with audio A2 or NICAM.\n"
38 "The valid values are:\n"
46 static LIST_HEAD(xc2028_list);
47 static DEFINE_MUTEX(xc2028_list_mutex);
49 /* struct for storing firmware table */
50 struct firmware_description {
58 struct firmware_properties {
63 unsigned int scode_table;
68 struct list_head xc2028_list;
69 struct tuner_i2c_props i2c_props;
70 int (*tuner_callback) (void *dev,
71 int command, int arg);
76 struct firmware_description *firm;
83 struct xc2028_ctrl ctrl;
85 struct firmware_properties cur_fw;
90 #define i2c_send(priv, buf, size) ({ \
92 _rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size); \
94 tuner_info("i2c output error: rc = %d (should be %d)\n",\
99 #define i2c_rcv(priv, buf, size) ({ \
101 _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \
103 tuner_err("i2c input error: rc = %d (should be %d)\n", \
108 #define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \
110 _rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \
113 tuner_err("i2c input error: rc = %d (should be %d)\n", \
118 #define send_seq(priv, data...) ({ \
119 static u8 _val[] = data; \
121 if (sizeof(_val) != \
122 (_rc = tuner_i2c_xfer_send(&priv->i2c_props, \
123 _val, sizeof(_val)))) { \
124 tuner_err("Error on line %d: %d\n", __LINE__, _rc); \
130 static unsigned int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
132 unsigned char buf[2];
133 unsigned char ibuf[2];
135 tuner_dbg("%s %04x called\n", __FUNCTION__, reg);
138 buf[1] = (unsigned char) reg;
140 if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2)
143 *val = (ibuf[1]) | (ibuf[0] << 8);
147 #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
148 void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
194 if (type & TOYOTA388)
195 printk("TOYOTA388 ");
196 if (type & TOYOTA794)
197 printk("TOYOTA794 ");
200 if (type & ZARLINK456)
201 printk("ZARLINK456 ");
211 printk("HAS_IF_%d ", int_freq);
214 static v4l2_std_id parse_audio_std_option(void)
216 if (strcasecmp(audio_std, "A2") == 0)
218 if (strcasecmp(audio_std, "A2/A") == 0)
219 return V4L2_STD_A2_A;
220 if (strcasecmp(audio_std, "A2/B") == 0)
221 return V4L2_STD_A2_B;
222 if (strcasecmp(audio_std, "NICAM") == 0)
223 return V4L2_STD_NICAM;
224 if (strcasecmp(audio_std, "NICAM/A") == 0)
225 return V4L2_STD_NICAM_A;
226 if (strcasecmp(audio_std, "NICAM/B") == 0)
227 return V4L2_STD_NICAM_B;
232 static void free_firmware(struct xc2028_data *priv)
239 for (i = 0; i < priv->firm_size; i++)
240 kfree(priv->firm[i].ptr);
247 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
250 static int load_all_firmwares(struct dvb_frontend *fe)
252 struct xc2028_data *priv = fe->tuner_priv;
253 const struct firmware *fw = NULL;
254 unsigned char *p, *endp;
259 tuner_dbg("%s called\n", __FUNCTION__);
261 tuner_dbg("Reading firmware %s\n", priv->ctrl.fname);
262 rc = request_firmware(&fw, priv->ctrl.fname,
263 &priv->i2c_props.adap->dev);
266 tuner_err("Error: firmware %s not found.\n",
269 tuner_err("Error %d while requesting firmware %s \n",
270 rc, priv->ctrl.fname);
277 if (fw->size < sizeof(name) - 1 + 2 + 2) {
278 tuner_err("Error: firmware file %s has invalid size!\n",
283 memcpy(name, p, sizeof(name) - 1);
284 name[sizeof(name) - 1] = 0;
285 p += sizeof(name) - 1;
287 priv->firm_version = le16_to_cpu(*(__u16 *) p);
290 n_array = le16_to_cpu(*(__u16 *) p);
293 tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
294 n_array, priv->ctrl.fname, name,
295 priv->firm_version >> 8, priv->firm_version & 0xff);
297 priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL);
298 if (priv->firm == NULL) {
299 tuner_err("Not enough memory to load firmware file.\n");
303 priv->firm_size = n_array;
313 tuner_err("More firmware images in file than "
318 /* Checks if there's enough bytes to read */
319 if (p + sizeof(type) + sizeof(id) + sizeof(size) > endp) {
320 tuner_err("Firmware header is incomplete!\n");
324 type = le32_to_cpu(*(__u32 *) p);
327 id = le64_to_cpu(*(v4l2_std_id *) p);
331 int_freq = le16_to_cpu(*(__u16 *) p);
332 p += sizeof(int_freq);
335 size = le32_to_cpu(*(__u32 *) p);
338 if ((!size) || (size + p > endp)) {
339 tuner_err("Firmware type ");
340 dump_firm_type(type);
341 printk("(%x), id %llx is corrupted "
342 "(size=%d, expected %d)\n",
343 type, (unsigned long long)id,
344 (unsigned)(endp - p), size);
348 priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
349 if (priv->firm[n].ptr == NULL) {
350 tuner_err("Not enough memory to load firmware file.\n");
354 tuner_dbg("Reading firmware type ");
356 dump_firm_type_and_int_freq(type, int_freq);
357 printk("(%x), id %llx, size=%d.\n",
358 type, (unsigned long long)id, size);
361 memcpy(priv->firm[n].ptr, p, size);
362 priv->firm[n].type = type;
363 priv->firm[n].id = id;
364 priv->firm[n].size = size;
365 priv->firm[n].int_freq = int_freq;
370 if (n + 1 != priv->firm_size) {
371 tuner_err("Firmware file is incomplete!\n");
379 tuner_err("Error: firmware file is corrupted!\n");
382 tuner_info("Releasing partially loaded firmware file.\n");
386 release_firmware(fw);
388 tuner_dbg("Firmware files loaded.\n");
393 static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
396 struct xc2028_data *priv = fe->tuner_priv;
397 int i, best_i = -1, best_nr_matches = 0;
399 tuner_dbg("%s called, want type=", __FUNCTION__);
401 dump_firm_type(type);
402 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
406 tuner_err("Error! firmware not loaded\n");
410 if (((type & ~SCODE) == 0) && (*id == 0))
415 else if (type & SCODE)
417 else if (type & DTV_TYPES)
419 else if (type & STD_SPECIFIC_TYPES)
420 type &= STD_SPECIFIC_TYPES;
422 /* Seek for exact match */
423 for (i = 0; i < priv->firm_size; i++) {
424 if ((type == priv->firm[i].type) && (*id == priv->firm[i].id))
428 /* Seek for generic video standard match */
429 for (i = 0; i < priv->firm_size; i++) {
430 v4l2_std_id match_mask;
433 if (type != priv->firm[i].type)
436 match_mask = *id & priv->firm[i].id;
440 if ((*id & match_mask) == *id)
441 goto found; /* Supports all the requested standards */
443 nr_matches = hweight64(match_mask);
444 if (nr_matches > best_nr_matches) {
445 best_nr_matches = nr_matches;
450 if (best_nr_matches > 0) {
451 tuner_dbg("Selecting best matching firmware (%d bits) for "
452 "type=", best_nr_matches);
453 dump_firm_type(type);
454 printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
459 /*FIXME: Would make sense to seek for type "hint" match ? */
465 *id = priv->firm[i].id;
468 tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
470 dump_firm_type(type);
471 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
476 static int load_firmware(struct dvb_frontend *fe, unsigned int type,
479 struct xc2028_data *priv = fe->tuner_priv;
481 unsigned char *p, *endp, buf[priv->ctrl.max_len];
483 tuner_dbg("%s called\n", __FUNCTION__);
485 pos = seek_firmware(fe, type, id);
489 tuner_info("Loading firmware for type=");
490 dump_firm_type(priv->firm[pos].type);
491 printk("(%x), id %016llx.\n", priv->firm[pos].type,
492 (unsigned long long)*id);
494 p = priv->firm[pos].ptr;
495 endp = p + priv->firm[pos].size;
500 /* Checks if there's enough bytes to read */
501 if (p + sizeof(size) > endp) {
502 tuner_err("Firmware chunk size is wrong\n");
506 size = le16_to_cpu(*(__u16 *) p);
513 /* Special callback command received */
514 rc = priv->tuner_callback(priv->video_dev,
515 XC2028_TUNER_RESET, 0);
517 tuner_err("Error at RESET code %d\n",
523 if (size >= 0xff00) {
526 rc = priv->tuner_callback(priv->video_dev,
527 XC2028_RESET_CLK, 0);
529 tuner_err("Error at RESET code %d\n",
535 tuner_info("Invalid RESET code %d\n",
543 /* Checks for a sleep command */
545 msleep(size & 0x7fff);
549 if ((size + p > endp)) {
550 tuner_err("missing bytes: need %d, have %d\n",
551 size, (int)(endp - p));
559 /* Sends message chunks */
561 int len = (size < priv->ctrl.max_len - 1) ?
562 size : priv->ctrl.max_len - 1;
564 memcpy(buf + 1, p, len);
566 rc = i2c_send(priv, buf, len + 1);
568 tuner_err("%d returned from send\n", rc);
579 static int load_scode(struct dvb_frontend *fe, unsigned int type,
580 v4l2_std_id *id, __u16 int_freq, int scode)
582 struct xc2028_data *priv = fe->tuner_priv;
586 tuner_dbg("%s called\n", __FUNCTION__);
589 pos = seek_firmware(fe, type, id);
593 for (pos = 0; pos < priv->firm_size; pos++) {
594 if ((priv->firm[pos].int_freq == int_freq) &&
598 if (pos == priv->firm_size)
602 p = priv->firm[pos].ptr;
605 if (priv->firm[pos].size != 12 * 16 || scode >= 16)
609 /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
610 * has a 2-byte size header in the firmware format. */
611 if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
612 le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
617 tuner_info("Loading SCODE for type=");
618 dump_firm_type_and_int_freq(priv->firm[pos].type,
619 priv->firm[pos].int_freq);
620 printk("(%x), id %016llx.\n", priv->firm[pos].type,
621 (unsigned long long)*id);
623 if (priv->firm_version < 0x0202)
624 rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
626 rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
630 rc = i2c_send(priv, p, 12);
634 rc = send_seq(priv, {0x00, 0x8c});
641 static int check_firmware(struct dvb_frontend *fe, unsigned int type,
642 v4l2_std_id std, __u16 int_freq)
644 struct xc2028_data *priv = fe->tuner_priv;
645 struct firmware_properties new_fw;
646 int rc = 0, is_retry = 0;
647 u16 version, hwmodel;
650 tuner_dbg("%s called\n", __FUNCTION__);
653 if (!priv->ctrl.fname) {
654 tuner_info("xc2028/3028 firmware name not set!\n");
658 rc = load_all_firmwares(fe);
669 new_fw.std_req = std;
670 new_fw.scode_table = SCODE | priv->ctrl.scode_table;
672 new_fw.int_freq = int_freq;
674 tuner_dbg("checking firmware, user requested type=");
676 dump_firm_type(new_fw.type);
677 printk("(%x), id %016llx, ", new_fw.type,
678 (unsigned long long)new_fw.std_req);
680 printk("scode_tbl ");
681 dump_firm_type(priv->ctrl.scode_table);
682 printk("(%x), ", priv->ctrl.scode_table);
684 printk("int_freq %d, ", new_fw.int_freq);
685 printk("scode_nr %d\n", new_fw.scode_nr);
688 /* No need to reload base firmware if it matches */
689 if (((BASE | new_fw.type) & BASE_TYPES) ==
690 (priv->cur_fw.type & BASE_TYPES)) {
691 tuner_dbg("BASE firmware not changed.\n");
695 /* Updating BASE - forget about all currently loaded firmware */
696 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
698 /* Reset is needed before loading firmware */
699 rc = priv->tuner_callback(priv->video_dev,
700 XC2028_TUNER_RESET, 0);
704 /* BASE firmwares are all std0 */
706 rc = load_firmware(fe, BASE | new_fw.type, &std0);
708 tuner_err("Error %d while loading base firmware\n",
713 /* Load INIT1, if needed */
714 tuner_dbg("Load init1 firmware, if exists\n");
716 rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
718 rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
720 if (rc < 0 && rc != -ENOENT) {
721 tuner_err("Error %d while loading init1 firmware\n",
728 * No need to reload standard specific firmware if base firmware
729 * was not reloaded and requested video standards have not changed.
731 if (priv->cur_fw.type == (BASE | new_fw.type) &&
732 priv->cur_fw.std_req == std) {
733 tuner_dbg("Std-specific firmware already loaded.\n");
734 goto skip_std_specific;
737 /* Reloading std-specific firmware forces a SCODE update */
738 priv->cur_fw.scode_table = 0;
740 rc = load_firmware(fe, new_fw.type, &new_fw.id);
742 rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
748 if (priv->cur_fw.scode_table == new_fw.scode_table &&
749 priv->cur_fw.scode_nr == new_fw.scode_nr) {
750 tuner_dbg("SCODE firmware already loaded.\n");
754 /* Load SCODE firmware, if exists */
755 tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
757 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
758 new_fw.int_freq, new_fw.scode_nr);
761 if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
762 xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
763 tuner_err("Unable to read tuner registers.\n");
767 tuner_info("Device is Xceive %d version %d.%d, "
768 "firmware version %d.%d\n",
769 hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
770 (version & 0xf0) >> 4, version & 0xf);
772 /* Check firmware version against what we downloaded. */
773 if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
774 tuner_err("Incorrect readback of firmware version.\n");
778 /* Check that the tuner hardware model remains consistent over time. */
779 if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
780 priv->hwmodel = hwmodel;
781 priv->hwvers = version & 0xff00;
782 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
783 priv->hwvers != (version & 0xff00)) {
784 tuner_err("Read invalid device hardware information - tuner "
789 memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
792 * By setting BASE in cur_fw.type only after successfully loading all
794 * 1. Identify that BASE firmware with type=0 has been loaded;
795 * 2. Tell whether BASE firmware was just changed the next time through.
797 priv->cur_fw.type |= BASE;
802 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
806 tuner_dbg("Retrying firmware load\n");
815 static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
817 struct xc2028_data *priv = fe->tuner_priv;
818 u16 frq_lock, signal = 0;
821 tuner_dbg("%s called\n", __FUNCTION__);
823 mutex_lock(&priv->lock);
825 /* Sync Lock Indicator */
826 rc = xc2028_get_reg(priv, 0x0002, &frq_lock);
827 if (rc < 0 || frq_lock == 0)
830 /* Frequency is locked. Return signal quality */
832 /* Get SNR of the video signal */
833 rc = xc2028_get_reg(priv, 0x0040, &signal);
838 mutex_unlock(&priv->lock);
847 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
848 enum tuner_mode new_mode,
853 struct xc2028_data *priv = fe->tuner_priv;
855 unsigned char buf[4];
858 tuner_dbg("%s called\n", __FUNCTION__);
860 mutex_lock(&priv->lock);
862 tuner_dbg("should set frequency %d kHz\n", freq / 1000);
864 if (check_firmware(fe, type, std, int_freq) < 0)
867 /* On some cases xc2028 can disable video output, if
868 * very weak signals are received. By sending a soft
869 * reset, this is re-enabled. So, it is better to always
870 * send a soft reset before changing channels, to be sure
871 * that xc2028 will be in a safe state.
872 * Maybe this might also be needed for DTV.
874 if (new_mode == T_ANALOG_TV) {
875 rc = send_seq(priv, {0x00, 0x00});
878 if (priv->cur_fw.type & DTV7)
882 div = (freq - offset + DIV / 2) / DIV;
884 /* CMD= Set frequency */
885 if (priv->firm_version < 0x0202)
886 rc = send_seq(priv, {0x00, 0x02, 0x00, 0x00});
888 rc = send_seq(priv, {0x80, 0x02, 0x00, 0x00});
892 rc = priv->tuner_callback(priv->video_dev, XC2028_RESET_CLK, 1);
898 buf[0] = 0xff & (div >> 24);
899 buf[1] = 0xff & (div >> 16);
900 buf[2] = 0xff & (div >> 8);
901 buf[3] = 0xff & (div);
903 rc = i2c_send(priv, buf, sizeof(buf));
908 priv->frequency = freq;
910 tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n",
911 buf[0], buf[1], buf[2], buf[3],
912 freq / 1000000, (freq % 1000000) / 1000);
917 mutex_unlock(&priv->lock);
922 static int xc2028_set_analog_freq(struct dvb_frontend *fe,
923 struct analog_parameters *p)
925 struct xc2028_data *priv = fe->tuner_priv;
928 tuner_dbg("%s called\n", __FUNCTION__);
930 if (p->mode == V4L2_TUNER_RADIO) {
932 if (priv->ctrl.input1)
934 return generic_set_freq(fe, (625l * p->frequency) / 10,
935 T_ANALOG_TV, type, 0, 0);
938 /* if std is not defined, choose one */
940 p->std = V4L2_STD_MN;
942 /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
943 if (!(p->std & V4L2_STD_MN))
946 /* Add audio hack to std mask */
947 p->std |= parse_audio_std_option();
949 return generic_set_freq(fe, 62500l * p->frequency,
950 T_ANALOG_TV, type, p->std, 0);
953 static int xc2028_set_params(struct dvb_frontend *fe,
954 struct dvb_frontend_parameters *p)
956 struct xc2028_data *priv = fe->tuner_priv;
958 fe_bandwidth_t bw = BANDWIDTH_8_MHZ;
961 tuner_dbg("%s called\n", __FUNCTION__);
963 if (priv->ctrl.d2633)
968 switch(fe->ops.info.type) {
970 bw = p->u.ofdm.bandwidth;
973 tuner_info("WARN: There are some reports that "
974 "QAM 6 MHz doesn't work.\n"
975 "If this works for you, please report by "
976 "e-mail to: v4l-dvb-maintainer@linuxtv.org\n");
977 bw = BANDWIDTH_6_MHZ;
981 bw = BANDWIDTH_6_MHZ;
982 /* The only ATSC firmware (at least on v2.7) is D2633,
983 so overrides ctrl->d2633 */
987 /* DVB-S is not supported */
993 There are two Scodes that will never be selected:
994 DTV78 ZARLINK456, DTV78 DIBCOM52
995 When it should opt for DTV78 instead of DTV7 or DTV8?
998 case BANDWIDTH_8_MHZ:
999 type |= DTV8 | F8MHZ;
1001 case BANDWIDTH_7_MHZ:
1002 type |= DTV7 | F8MHZ;
1004 case BANDWIDTH_6_MHZ:
1008 tuner_err("error: bandwidth not supported.\n");
1011 /* All S-code tables need a 200kHz shift */
1012 if (priv->ctrl.demod)
1013 demod = priv->ctrl.demod + 200;
1015 return generic_set_freq(fe, p->frequency,
1016 T_DIGITAL_TV, type, 0, demod);
1019 static int xc2028_sleep(struct dvb_frontend *fe)
1021 struct xc2028_data *priv = fe->tuner_priv;
1024 tuner_dbg("%s called\n", __FUNCTION__);
1026 mutex_lock(&priv->lock);
1028 if (priv->firm_version < 0x0202)
1029 rc = send_seq(priv, {0x00, 0x08, 0x00, 0x00});
1031 rc = send_seq(priv, {0x80, 0x08, 0x00, 0x00});
1033 priv->cur_fw.type = 0; /* need firmware reload */
1035 mutex_unlock(&priv->lock);
1041 static int xc2028_dvb_release(struct dvb_frontend *fe)
1043 struct xc2028_data *priv = fe->tuner_priv;
1045 tuner_dbg("%s called\n", __FUNCTION__);
1047 mutex_lock(&xc2028_list_mutex);
1052 list_del(&priv->xc2028_list);
1054 kfree(priv->ctrl.fname);
1056 free_firmware(priv);
1058 fe->tuner_priv = NULL;
1061 mutex_unlock(&xc2028_list_mutex);
1066 static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1068 struct xc2028_data *priv = fe->tuner_priv;
1070 tuner_dbg("%s called\n", __FUNCTION__);
1072 *frequency = priv->frequency;
1077 static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
1079 struct xc2028_data *priv = fe->tuner_priv;
1080 struct xc2028_ctrl *p = priv_cfg;
1083 tuner_dbg("%s called\n", __FUNCTION__);
1085 mutex_lock(&priv->lock);
1087 kfree(priv->ctrl.fname);
1088 free_firmware(priv);
1090 memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
1091 priv->ctrl.fname = NULL;
1094 priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
1095 if (priv->ctrl.fname == NULL)
1099 if (priv->ctrl.max_len < 9)
1100 priv->ctrl.max_len = 13;
1102 mutex_unlock(&priv->lock);
1107 static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
1109 .name = "Xceive XC3028",
1110 .frequency_min = 42000000,
1111 .frequency_max = 864000000,
1112 .frequency_step = 50000,
1115 .set_config = xc2028_set_config,
1116 .set_analog_params = xc2028_set_analog_freq,
1117 .release = xc2028_dvb_release,
1118 .get_frequency = xc2028_get_frequency,
1119 .get_rf_strength = xc2028_signal,
1120 .set_params = xc2028_set_params,
1121 .sleep = xc2028_sleep,
1125 void *xc2028_attach(struct dvb_frontend *fe, struct xc2028_config *cfg)
1127 struct xc2028_data *priv;
1131 printk(KERN_DEBUG PREFIX ": Xcv2028/3028 init called!\n");
1133 if (NULL == cfg || NULL == cfg->video_dev)
1137 printk(KERN_ERR PREFIX ": No frontend!\n");
1141 video_dev = cfg->video_dev;
1143 mutex_lock(&xc2028_list_mutex);
1145 list_for_each_entry(priv, &xc2028_list, xc2028_list) {
1146 if (priv->video_dev == cfg->video_dev) {
1153 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
1155 mutex_unlock(&xc2028_list_mutex);
1159 priv->i2c_props.addr = cfg->i2c_addr;
1160 priv->i2c_props.adap = cfg->i2c_adap;
1161 priv->video_dev = video_dev;
1162 priv->tuner_callback = cfg->callback;
1163 priv->ctrl.max_len = 13;
1165 mutex_init(&priv->lock);
1167 list_add_tail(&priv->xc2028_list, &xc2028_list);
1170 fe->tuner_priv = priv;
1173 memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
1174 sizeof(xc2028_dvb_tuner_ops));
1176 tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
1179 xc2028_set_config(fe, cfg->ctrl);
1181 mutex_unlock(&xc2028_list_mutex);
1186 EXPORT_SYMBOL(xc2028_attach);
1188 MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
1189 MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
1190 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
1191 MODULE_LICENSE("GPL");