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 void dump_firm_type(unsigned int type)
193 if (type & TOYOTA388)
194 printk("TOYOTA388 ");
195 if (type & TOYOTA794)
196 printk("TOYOTA794 ");
199 if (type & ZARLINK456)
200 printk("ZARLINK456 ");
211 static v4l2_std_id parse_audio_std_option(void)
213 if (strcasecmp(audio_std, "A2") == 0)
215 if (strcasecmp(audio_std, "A2/A") == 0)
216 return V4L2_STD_A2_A;
217 if (strcasecmp(audio_std, "A2/B") == 0)
218 return V4L2_STD_A2_B;
219 if (strcasecmp(audio_std, "NICAM") == 0)
220 return V4L2_STD_NICAM;
221 if (strcasecmp(audio_std, "NICAM/A") == 0)
222 return V4L2_STD_NICAM_A;
223 if (strcasecmp(audio_std, "NICAM/B") == 0)
224 return V4L2_STD_NICAM_B;
229 static void free_firmware(struct xc2028_data *priv)
236 for (i = 0; i < priv->firm_size; i++)
237 kfree(priv->firm[i].ptr);
244 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
247 static int load_all_firmwares(struct dvb_frontend *fe)
249 struct xc2028_data *priv = fe->tuner_priv;
250 const struct firmware *fw = NULL;
251 unsigned char *p, *endp;
256 tuner_dbg("%s called\n", __FUNCTION__);
258 tuner_dbg("Reading firmware %s\n", priv->ctrl.fname);
259 rc = request_firmware(&fw, priv->ctrl.fname,
260 &priv->i2c_props.adap->dev);
263 tuner_err("Error: firmware %s not found.\n",
266 tuner_err("Error %d while requesting firmware %s \n",
267 rc, priv->ctrl.fname);
274 if (fw->size < sizeof(name) - 1 + 2 + 2) {
275 tuner_err("Error: firmware file %s has invalid size!\n",
280 memcpy(name, p, sizeof(name) - 1);
281 name[sizeof(name) - 1] = 0;
282 p += sizeof(name) - 1;
284 priv->firm_version = le16_to_cpu(*(__u16 *) p);
287 n_array = le16_to_cpu(*(__u16 *) p);
290 tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
291 n_array, priv->ctrl.fname, name,
292 priv->firm_version >> 8, priv->firm_version & 0xff);
294 priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL);
295 if (priv->firm == NULL) {
296 tuner_err("Not enough memory to load firmware file.\n");
300 priv->firm_size = n_array;
310 tuner_err("More firmware images in file than "
315 /* Checks if there's enough bytes to read */
316 if (p + sizeof(type) + sizeof(id) + sizeof(size) > endp) {
317 tuner_err("Firmware header is incomplete!\n");
321 type = le32_to_cpu(*(__u32 *) p);
324 id = le64_to_cpu(*(v4l2_std_id *) p);
328 int_freq = le16_to_cpu(*(__u16 *) p);
329 p += sizeof(int_freq);
332 size = le32_to_cpu(*(__u32 *) p);
335 if ((!size) || (size + p > endp)) {
336 tuner_err("Firmware type ");
337 dump_firm_type(type);
338 printk("(%x), id %llx is corrupted "
339 "(size=%d, expected %d)\n",
340 type, (unsigned long long)id,
341 (unsigned)(endp - p), size);
345 priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
346 if (priv->firm[n].ptr == NULL) {
347 tuner_err("Not enough memory to load firmware file.\n");
351 tuner_dbg("Reading firmware type ");
353 dump_firm_type(type);
354 printk("(%x), id %llx, size=%d.\n",
355 type, (unsigned long long)id, size);
358 memcpy(priv->firm[n].ptr, p, size);
359 priv->firm[n].type = type;
360 priv->firm[n].id = id;
361 priv->firm[n].size = size;
362 priv->firm[n].int_freq = int_freq;
367 if (n + 1 != priv->firm_size) {
368 tuner_err("Firmware file is incomplete!\n");
376 tuner_err("Error: firmware file is corrupted!\n");
379 tuner_info("Releasing partially loaded firmware file.\n");
383 release_firmware(fw);
385 tuner_dbg("Firmware files loaded.\n");
390 static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
393 struct xc2028_data *priv = fe->tuner_priv;
394 int i, best_i = -1, best_nr_matches = 0;
396 tuner_dbg("%s called, want type=", __FUNCTION__);
398 dump_firm_type(type);
399 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
403 tuner_err("Error! firmware not loaded\n");
407 if (((type & ~SCODE) == 0) && (*id == 0))
412 else if (type & SCODE)
414 else if (type & DTV_TYPES)
416 else if (type & STD_SPECIFIC_TYPES)
417 type &= STD_SPECIFIC_TYPES;
419 /* Seek for exact match */
420 for (i = 0; i < priv->firm_size; i++) {
421 if ((type == priv->firm[i].type) && (*id == priv->firm[i].id))
425 /* Seek for generic video standard match */
426 for (i = 0; i < priv->firm_size; i++) {
427 v4l2_std_id match_mask;
430 if (type != priv->firm[i].type)
433 match_mask = *id & priv->firm[i].id;
437 if ((*id & match_mask) == *id)
438 goto found; /* Supports all the requested standards */
440 nr_matches = hweight64(match_mask);
441 if (nr_matches > best_nr_matches) {
442 best_nr_matches = nr_matches;
447 if (best_nr_matches > 0) {
448 tuner_dbg("Selecting best matching firmware (%d bits) for "
449 "type=", best_nr_matches);
450 dump_firm_type(type);
451 printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
456 /*FIXME: Would make sense to seek for type "hint" match ? */
462 *id = priv->firm[i].id;
465 tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
467 dump_firm_type(type);
468 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
473 static int load_firmware(struct dvb_frontend *fe, unsigned int type,
476 struct xc2028_data *priv = fe->tuner_priv;
478 unsigned char *p, *endp, buf[priv->ctrl.max_len];
480 tuner_dbg("%s called\n", __FUNCTION__);
482 pos = seek_firmware(fe, type, id);
486 tuner_info("Loading firmware for type=");
487 dump_firm_type(priv->firm[pos].type);
488 printk("(%x), id %016llx.\n", priv->firm[pos].type,
489 (unsigned long long)*id);
491 p = priv->firm[pos].ptr;
492 endp = p + priv->firm[pos].size;
497 /* Checks if there's enough bytes to read */
498 if (p + sizeof(size) > endp) {
499 tuner_err("Firmware chunk size is wrong\n");
503 size = le16_to_cpu(*(__u16 *) p);
510 /* Special callback command received */
511 rc = priv->tuner_callback(priv->video_dev,
512 XC2028_TUNER_RESET, 0);
514 tuner_err("Error at RESET code %d\n",
520 if (size >= 0xff00) {
523 rc = priv->tuner_callback(priv->video_dev,
524 XC2028_RESET_CLK, 0);
526 tuner_err("Error at RESET code %d\n",
532 tuner_info("Invalid RESET code %d\n",
540 /* Checks for a sleep command */
542 msleep(size & 0x7fff);
546 if ((size + p > endp)) {
547 tuner_err("missing bytes: need %d, have %d\n",
548 size, (int)(endp - p));
556 /* Sends message chunks */
558 int len = (size < priv->ctrl.max_len - 1) ?
559 size : priv->ctrl.max_len - 1;
561 memcpy(buf + 1, p, len);
563 rc = i2c_send(priv, buf, len + 1);
565 tuner_err("%d returned from send\n", rc);
576 static int load_scode(struct dvb_frontend *fe, unsigned int type,
577 v4l2_std_id *id, __u16 int_freq, int scode)
579 struct xc2028_data *priv = fe->tuner_priv;
583 tuner_dbg("%s called\n", __FUNCTION__);
586 pos = seek_firmware(fe, type, id);
590 for (pos = 0; pos < priv->firm_size; pos++) {
591 if ((priv->firm[pos].int_freq == int_freq) &&
595 if (pos == priv->firm_size)
599 p = priv->firm[pos].ptr;
602 if (priv->firm[pos].size != 12 * 16 || scode >= 16)
606 /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
607 * has a 2-byte size header in the firmware format. */
608 if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
609 le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
614 tuner_info("Loading SCODE for type=");
615 dump_firm_type(priv->firm[pos].type);
616 printk("(%x), id %016llx.\n", priv->firm[pos].type,
617 (unsigned long long)*id);
619 if (priv->firm_version < 0x0202)
620 rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
622 rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
626 rc = i2c_send(priv, p, 12);
630 rc = send_seq(priv, {0x00, 0x8c});
637 static int check_firmware(struct dvb_frontend *fe, unsigned int type,
638 v4l2_std_id std, __u16 int_freq)
640 struct xc2028_data *priv = fe->tuner_priv;
641 struct firmware_properties new_fw;
642 int rc = 0, is_retry = 0;
643 u16 version, hwmodel;
646 tuner_dbg("%s called\n", __FUNCTION__);
649 if (!priv->ctrl.fname) {
650 tuner_info("xc2028/3028 firmware name not set!\n");
654 rc = load_all_firmwares(fe);
665 new_fw.std_req = std;
666 new_fw.scode_table = SCODE | priv->ctrl.scode_table;
668 new_fw.int_freq = int_freq;
670 tuner_dbg("checking firmware, user requested type=");
672 dump_firm_type(new_fw.type);
673 printk("(%x), id %016llx, scode_tbl ", new_fw.type,
674 (unsigned long long)new_fw.std_req);
675 dump_firm_type(priv->ctrl.scode_table);
676 printk("(%x), scode_nr %d\n", priv->ctrl.scode_table,
680 /* No need to reload base firmware if it matches */
681 if (((BASE | new_fw.type) & BASE_TYPES) ==
682 (priv->cur_fw.type & BASE_TYPES)) {
683 tuner_dbg("BASE firmware not changed.\n");
687 /* Updating BASE - forget about all currently loaded firmware */
688 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
690 /* Reset is needed before loading firmware */
691 rc = priv->tuner_callback(priv->video_dev,
692 XC2028_TUNER_RESET, 0);
696 /* BASE firmwares are all std0 */
698 rc = load_firmware(fe, BASE | new_fw.type, &std0);
700 tuner_err("Error %d while loading base firmware\n",
705 /* Load INIT1, if needed */
706 tuner_dbg("Load init1 firmware, if exists\n");
708 rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
710 rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
712 if (rc < 0 && rc != -ENOENT) {
713 tuner_err("Error %d while loading init1 firmware\n",
720 * No need to reload standard specific firmware if base firmware
721 * was not reloaded and requested video standards have not changed.
723 if (priv->cur_fw.type == (BASE | new_fw.type) &&
724 priv->cur_fw.std_req == std) {
725 tuner_dbg("Std-specific firmware already loaded.\n");
726 goto skip_std_specific;
729 /* Reloading std-specific firmware forces a SCODE update */
730 priv->cur_fw.scode_table = 0;
732 rc = load_firmware(fe, new_fw.type, &new_fw.id);
734 rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
740 if (priv->cur_fw.scode_table == new_fw.scode_table &&
741 priv->cur_fw.scode_nr == new_fw.scode_nr) {
742 tuner_dbg("SCODE firmware already loaded.\n");
746 /* Load SCODE firmware, if exists */
747 tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
749 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
750 new_fw.int_freq, new_fw.scode_nr);
753 if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
754 xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
755 tuner_err("Unable to read tuner registers.\n");
759 tuner_info("Device is Xceive %d version %d.%d, "
760 "firmware version %d.%d\n",
761 hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
762 (version & 0xf0) >> 4, version & 0xf);
764 /* Check firmware version against what we downloaded. */
765 if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
766 tuner_err("Incorrect readback of firmware version.\n");
770 /* Check that the tuner hardware model remains consistent over time. */
771 if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
772 priv->hwmodel = hwmodel;
773 priv->hwvers = version & 0xff00;
774 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
775 priv->hwvers != (version & 0xff00)) {
776 tuner_err("Read invalid device hardware information - tuner "
781 memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
784 * By setting BASE in cur_fw.type only after successfully loading all
786 * 1. Identify that BASE firmware with type=0 has been loaded;
787 * 2. Tell whether BASE firmware was just changed the next time through.
789 priv->cur_fw.type |= BASE;
794 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
798 tuner_dbg("Retrying firmware load\n");
807 static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
809 struct xc2028_data *priv = fe->tuner_priv;
810 u16 frq_lock, signal = 0;
813 tuner_dbg("%s called\n", __FUNCTION__);
815 mutex_lock(&priv->lock);
817 /* Sync Lock Indicator */
818 rc = xc2028_get_reg(priv, 0x0002, &frq_lock);
819 if (rc < 0 || frq_lock == 0)
822 /* Frequency is locked. Return signal quality */
824 /* Get SNR of the video signal */
825 rc = xc2028_get_reg(priv, 0x0040, &signal);
830 mutex_unlock(&priv->lock);
839 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
840 enum tuner_mode new_mode,
845 struct xc2028_data *priv = fe->tuner_priv;
847 unsigned char buf[4];
850 tuner_dbg("%s called\n", __FUNCTION__);
852 mutex_lock(&priv->lock);
854 tuner_dbg("should set frequency %d kHz\n", freq / 1000);
856 if (check_firmware(fe, type, std, int_freq) < 0)
859 /* On some cases xc2028 can disable video output, if
860 * very weak signals are received. By sending a soft
861 * reset, this is re-enabled. So, it is better to always
862 * send a soft reset before changing channels, to be sure
863 * that xc2028 will be in a safe state.
864 * Maybe this might also be needed for DTV.
866 if (new_mode == T_ANALOG_TV) {
867 rc = send_seq(priv, {0x00, 0x00});
870 if (priv->cur_fw.type & DTV7)
874 div = (freq - offset + DIV / 2) / DIV;
876 /* CMD= Set frequency */
877 if (priv->firm_version < 0x0202)
878 rc = send_seq(priv, {0x00, 0x02, 0x00, 0x00});
880 rc = send_seq(priv, {0x80, 0x02, 0x00, 0x00});
884 rc = priv->tuner_callback(priv->video_dev, XC2028_RESET_CLK, 1);
890 buf[0] = 0xff & (div >> 24);
891 buf[1] = 0xff & (div >> 16);
892 buf[2] = 0xff & (div >> 8);
893 buf[3] = 0xff & (div);
895 rc = i2c_send(priv, buf, sizeof(buf));
900 priv->frequency = freq;
902 tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n",
903 buf[0], buf[1], buf[2], buf[3],
904 freq / 1000000, (freq % 1000000) / 1000);
909 mutex_unlock(&priv->lock);
914 static int xc2028_set_analog_freq(struct dvb_frontend *fe,
915 struct analog_parameters *p)
917 struct xc2028_data *priv = fe->tuner_priv;
920 tuner_dbg("%s called\n", __FUNCTION__);
922 if (p->mode == V4L2_TUNER_RADIO) {
924 if (priv->ctrl.input1)
926 return generic_set_freq(fe, (625l * p->frequency) / 10,
927 T_ANALOG_TV, type, 0, 0);
930 /* if std is not defined, choose one */
932 p->std = V4L2_STD_MN;
934 /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
935 if (!(p->std & V4L2_STD_MN))
938 /* Add audio hack to std mask */
939 p->std |= parse_audio_std_option();
941 return generic_set_freq(fe, 62500l * p->frequency,
942 T_ANALOG_TV, type, p->std, 0);
945 static int xc2028_set_params(struct dvb_frontend *fe,
946 struct dvb_frontend_parameters *p)
948 struct xc2028_data *priv = fe->tuner_priv;
950 fe_bandwidth_t bw = BANDWIDTH_8_MHZ;
952 tuner_dbg("%s called\n", __FUNCTION__);
954 if (priv->ctrl.d2633)
959 switch(fe->ops.info.type) {
961 bw = p->u.ofdm.bandwidth;
964 tuner_info("WARN: There are some reports that "
965 "QAM 6 MHz doesn't work.\n"
966 "If this works for you, please report by "
967 "e-mail to: v4l-dvb-maintainer@linuxtv.org\n");
968 bw = BANDWIDTH_6_MHZ;
972 bw = BANDWIDTH_6_MHZ;
975 /* DVB-S is not supported */
981 There are two Scodes that will never be selected:
982 DTV78 ZARLINK456, DTV78 DIBCOM52
983 When it should opt for DTV78 instead of DTV7 or DTV8?
986 case BANDWIDTH_8_MHZ:
987 type |= DTV8 | F8MHZ;
989 case BANDWIDTH_7_MHZ:
990 type |= DTV7 | F8MHZ;
992 case BANDWIDTH_6_MHZ:
996 tuner_err("error: bandwidth not supported.\n");
999 /* All S-code tables need a 200kHz shift */
1000 if (priv->ctrl.demod)
1001 priv->ctrl.demod += 200;
1003 return generic_set_freq(fe, p->frequency,
1004 T_DIGITAL_TV, type, 0, priv->ctrl.demod);
1007 static int xc2028_sleep(struct dvb_frontend *fe)
1009 struct xc2028_data *priv = fe->tuner_priv;
1012 tuner_dbg("%s called\n", __FUNCTION__);
1014 mutex_lock(&priv->lock);
1016 if (priv->firm_version < 0x0202)
1017 rc = send_seq(priv, {0x00, 0x08, 0x00, 0x00});
1019 rc = send_seq(priv, {0x80, 0x08, 0x00, 0x00});
1021 priv->cur_fw.type = 0; /* need firmware reload */
1023 mutex_unlock(&priv->lock);
1029 static int xc2028_dvb_release(struct dvb_frontend *fe)
1031 struct xc2028_data *priv = fe->tuner_priv;
1033 tuner_dbg("%s called\n", __FUNCTION__);
1035 mutex_lock(&xc2028_list_mutex);
1040 list_del(&priv->xc2028_list);
1042 kfree(priv->ctrl.fname);
1044 free_firmware(priv);
1046 fe->tuner_priv = NULL;
1049 mutex_unlock(&xc2028_list_mutex);
1054 static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1056 struct xc2028_data *priv = fe->tuner_priv;
1058 tuner_dbg("%s called\n", __FUNCTION__);
1060 *frequency = priv->frequency;
1065 static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
1067 struct xc2028_data *priv = fe->tuner_priv;
1068 struct xc2028_ctrl *p = priv_cfg;
1071 tuner_dbg("%s called\n", __FUNCTION__);
1073 mutex_lock(&priv->lock);
1075 kfree(priv->ctrl.fname);
1076 free_firmware(priv);
1078 memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
1079 priv->ctrl.fname = NULL;
1082 priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
1083 if (priv->ctrl.fname == NULL)
1087 if (priv->ctrl.max_len < 9)
1088 priv->ctrl.max_len = 13;
1090 mutex_unlock(&priv->lock);
1095 static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
1097 .name = "Xceive XC3028",
1098 .frequency_min = 42000000,
1099 .frequency_max = 864000000,
1100 .frequency_step = 50000,
1103 .set_config = xc2028_set_config,
1104 .set_analog_params = xc2028_set_analog_freq,
1105 .release = xc2028_dvb_release,
1106 .get_frequency = xc2028_get_frequency,
1107 .get_rf_strength = xc2028_signal,
1108 .set_params = xc2028_set_params,
1109 .sleep = xc2028_sleep,
1113 void *xc2028_attach(struct dvb_frontend *fe, struct xc2028_config *cfg)
1115 struct xc2028_data *priv;
1119 printk(KERN_DEBUG PREFIX ": Xcv2028/3028 init called!\n");
1121 if (NULL == cfg || NULL == cfg->video_dev)
1125 printk(KERN_ERR PREFIX ": No frontend!\n");
1129 video_dev = cfg->video_dev;
1131 mutex_lock(&xc2028_list_mutex);
1133 list_for_each_entry(priv, &xc2028_list, xc2028_list) {
1134 if (priv->video_dev == cfg->video_dev) {
1141 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
1143 mutex_unlock(&xc2028_list_mutex);
1147 priv->i2c_props.addr = cfg->i2c_addr;
1148 priv->i2c_props.adap = cfg->i2c_adap;
1149 priv->video_dev = video_dev;
1150 priv->tuner_callback = cfg->callback;
1151 priv->ctrl.max_len = 13;
1153 mutex_init(&priv->lock);
1155 list_add_tail(&priv->xc2028_list, &xc2028_list);
1158 fe->tuner_priv = priv;
1161 memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
1162 sizeof(xc2028_dvb_tuner_ops));
1164 tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
1167 xc2028_set_config(fe, cfg->ctrl);
1169 mutex_unlock(&xc2028_list_mutex);
1174 EXPORT_SYMBOL(xc2028_attach);
1176 MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
1177 MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
1178 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
1179 MODULE_LICENSE("GPL");