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"
27 module_param(debug, int, 0644);
28 MODULE_PARM_DESC(debug, "enable verbose debug messages");
30 static char audio_std[8];
31 module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
32 MODULE_PARM_DESC(audio_std,
33 "Audio standard. XC3028 audio decoder explicitly "
34 "needs to know what audio\n"
35 "standard is needed for some video standards with audio A2 or NICAM.\n"
36 "The valid values are:\n"
44 static char firmware_name[FIRMWARE_NAME_MAX];
45 module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
46 MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
47 "default firmware name\n");
49 static LIST_HEAD(xc2028_list);
50 static DEFINE_MUTEX(xc2028_list_mutex);
52 /* struct for storing firmware table */
53 struct firmware_description {
61 struct firmware_properties {
66 unsigned int scode_table;
71 struct list_head xc2028_list;
72 struct tuner_i2c_props i2c_props;
73 int (*tuner_callback) (void *dev,
74 int command, int arg);
79 struct firmware_description *firm;
86 struct xc2028_ctrl ctrl;
88 struct firmware_properties cur_fw;
93 #define i2c_send(priv, buf, size) ({ \
95 _rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size); \
97 tuner_info("i2c output error: rc = %d (should be %d)\n",\
102 #define i2c_rcv(priv, buf, size) ({ \
104 _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \
106 tuner_err("i2c input error: rc = %d (should be %d)\n", \
111 #define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \
113 _rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \
116 tuner_err("i2c input error: rc = %d (should be %d)\n", \
121 #define send_seq(priv, data...) ({ \
122 static u8 _val[] = data; \
124 if (sizeof(_val) != \
125 (_rc = tuner_i2c_xfer_send(&priv->i2c_props, \
126 _val, sizeof(_val)))) { \
127 tuner_err("Error on line %d: %d\n", __LINE__, _rc); \
133 static unsigned int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
135 unsigned char buf[2];
136 unsigned char ibuf[2];
138 tuner_dbg("%s %04x called\n", __FUNCTION__, reg);
141 buf[1] = (unsigned char) reg;
143 if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2)
146 *val = (ibuf[1]) | (ibuf[0] << 8);
150 #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
151 static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
197 if (type & TOYOTA388)
198 printk("TOYOTA388 ");
199 if (type & TOYOTA794)
200 printk("TOYOTA794 ");
203 if (type & ZARLINK456)
204 printk("ZARLINK456 ");
214 printk("HAS_IF_%d ", int_freq);
217 static v4l2_std_id parse_audio_std_option(void)
219 if (strcasecmp(audio_std, "A2") == 0)
221 if (strcasecmp(audio_std, "A2/A") == 0)
222 return V4L2_STD_A2_A;
223 if (strcasecmp(audio_std, "A2/B") == 0)
224 return V4L2_STD_A2_B;
225 if (strcasecmp(audio_std, "NICAM") == 0)
226 return V4L2_STD_NICAM;
227 if (strcasecmp(audio_std, "NICAM/A") == 0)
228 return V4L2_STD_NICAM_A;
229 if (strcasecmp(audio_std, "NICAM/B") == 0)
230 return V4L2_STD_NICAM_B;
235 static void free_firmware(struct xc2028_data *priv)
242 for (i = 0; i < priv->firm_size; i++)
243 kfree(priv->firm[i].ptr);
250 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
253 static int load_all_firmwares(struct dvb_frontend *fe)
255 struct xc2028_data *priv = fe->tuner_priv;
256 const struct firmware *fw = NULL;
257 unsigned char *p, *endp;
263 tuner_dbg("%s called\n", __FUNCTION__);
265 if (!firmware_name[0])
266 fname = priv->ctrl.fname;
268 fname = firmware_name;
270 tuner_dbg("Reading firmware %s\n", fname);
271 rc = request_firmware(&fw, fname, &priv->i2c_props.adap->dev);
274 tuner_err("Error: firmware %s not found.\n",
277 tuner_err("Error %d while requesting firmware %s \n",
285 if (fw->size < sizeof(name) - 1 + 2 + 2) {
286 tuner_err("Error: firmware file %s has invalid size!\n",
291 memcpy(name, p, sizeof(name) - 1);
292 name[sizeof(name) - 1] = 0;
293 p += sizeof(name) - 1;
295 priv->firm_version = le16_to_cpu(*(__u16 *) p);
298 n_array = le16_to_cpu(*(__u16 *) p);
301 tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
302 n_array, fname, name,
303 priv->firm_version >> 8, priv->firm_version & 0xff);
305 priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL);
306 if (priv->firm == NULL) {
307 tuner_err("Not enough memory to load firmware file.\n");
311 priv->firm_size = n_array;
321 tuner_err("More firmware images in file than "
326 /* Checks if there's enough bytes to read */
327 if (p + sizeof(type) + sizeof(id) + sizeof(size) > endp) {
328 tuner_err("Firmware header is incomplete!\n");
332 type = le32_to_cpu(*(__u32 *) p);
335 id = le64_to_cpu(*(v4l2_std_id *) p);
339 int_freq = le16_to_cpu(*(__u16 *) p);
340 p += sizeof(int_freq);
343 size = le32_to_cpu(*(__u32 *) p);
346 if ((!size) || (size + p > endp)) {
347 tuner_err("Firmware type ");
348 dump_firm_type(type);
349 printk("(%x), id %llx is corrupted "
350 "(size=%d, expected %d)\n",
351 type, (unsigned long long)id,
352 (unsigned)(endp - p), size);
356 priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
357 if (priv->firm[n].ptr == NULL) {
358 tuner_err("Not enough memory to load firmware file.\n");
362 tuner_dbg("Reading firmware type ");
364 dump_firm_type_and_int_freq(type, int_freq);
365 printk("(%x), id %llx, size=%d.\n",
366 type, (unsigned long long)id, size);
369 memcpy(priv->firm[n].ptr, p, size);
370 priv->firm[n].type = type;
371 priv->firm[n].id = id;
372 priv->firm[n].size = size;
373 priv->firm[n].int_freq = int_freq;
378 if (n + 1 != priv->firm_size) {
379 tuner_err("Firmware file is incomplete!\n");
387 tuner_err("Error: firmware file is corrupted!\n");
390 tuner_info("Releasing partially loaded firmware file.\n");
394 release_firmware(fw);
396 tuner_dbg("Firmware files loaded.\n");
401 static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
404 struct xc2028_data *priv = fe->tuner_priv;
405 int i, best_i = -1, best_nr_matches = 0;
406 unsigned int ign_firm_type_mask = 0;
408 tuner_dbg("%s called, want type=", __FUNCTION__);
410 dump_firm_type(type);
411 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
415 tuner_err("Error! firmware not loaded\n");
419 if (((type & ~SCODE) == 0) && (*id == 0))
424 else if (type & SCODE) {
426 ign_firm_type_mask = HAS_IF;
427 } else if (type & DTV_TYPES)
429 else if (type & STD_SPECIFIC_TYPES)
430 type &= STD_SPECIFIC_TYPES;
432 /* Seek for exact match */
433 for (i = 0; i < priv->firm_size; i++) {
434 if ((type == (priv->firm[i].type & ~ign_firm_type_mask)) &&
435 (*id == priv->firm[i].id))
439 /* Seek for generic video standard match */
440 for (i = 0; i < priv->firm_size; i++) {
441 v4l2_std_id match_mask;
444 if (type != (priv->firm[i].type & ~ign_firm_type_mask))
447 match_mask = *id & priv->firm[i].id;
451 if ((*id & match_mask) == *id)
452 goto found; /* Supports all the requested standards */
454 nr_matches = hweight64(match_mask);
455 if (nr_matches > best_nr_matches) {
456 best_nr_matches = nr_matches;
461 if (best_nr_matches > 0) {
462 tuner_dbg("Selecting best matching firmware (%d bits) for "
463 "type=", best_nr_matches);
464 dump_firm_type(type);
465 printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
470 /*FIXME: Would make sense to seek for type "hint" match ? */
476 *id = priv->firm[i].id;
479 tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
481 dump_firm_type(type);
482 printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
487 static int load_firmware(struct dvb_frontend *fe, unsigned int type,
490 struct xc2028_data *priv = fe->tuner_priv;
492 unsigned char *p, *endp, buf[priv->ctrl.max_len];
494 tuner_dbg("%s called\n", __FUNCTION__);
496 pos = seek_firmware(fe, type, id);
500 tuner_info("Loading firmware for type=");
501 dump_firm_type(priv->firm[pos].type);
502 printk("(%x), id %016llx.\n", priv->firm[pos].type,
503 (unsigned long long)*id);
505 p = priv->firm[pos].ptr;
506 endp = p + priv->firm[pos].size;
511 /* Checks if there's enough bytes to read */
512 if (p + sizeof(size) > endp) {
513 tuner_err("Firmware chunk size is wrong\n");
517 size = le16_to_cpu(*(__u16 *) p);
524 /* Special callback command received */
525 rc = priv->tuner_callback(priv->video_dev,
526 XC2028_TUNER_RESET, 0);
528 tuner_err("Error at RESET code %d\n",
534 if (size >= 0xff00) {
537 rc = priv->tuner_callback(priv->video_dev,
538 XC2028_RESET_CLK, 0);
540 tuner_err("Error at RESET code %d\n",
546 tuner_info("Invalid RESET code %d\n",
554 /* Checks for a sleep command */
556 msleep(size & 0x7fff);
560 if ((size + p > endp)) {
561 tuner_err("missing bytes: need %d, have %d\n",
562 size, (int)(endp - p));
570 /* Sends message chunks */
572 int len = (size < priv->ctrl.max_len - 1) ?
573 size : priv->ctrl.max_len - 1;
575 memcpy(buf + 1, p, len);
577 rc = i2c_send(priv, buf, len + 1);
579 tuner_err("%d returned from send\n", rc);
590 static int load_scode(struct dvb_frontend *fe, unsigned int type,
591 v4l2_std_id *id, __u16 int_freq, int scode)
593 struct xc2028_data *priv = fe->tuner_priv;
597 tuner_dbg("%s called\n", __FUNCTION__);
600 pos = seek_firmware(fe, type, id);
604 for (pos = 0; pos < priv->firm_size; pos++) {
605 if ((priv->firm[pos].int_freq == int_freq) &&
606 (priv->firm[pos].type & HAS_IF))
609 if (pos == priv->firm_size)
613 p = priv->firm[pos].ptr;
615 if (priv->firm[pos].type & HAS_IF) {
616 if (priv->firm[pos].size != 12 * 16 || scode >= 16)
620 /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
621 * has a 2-byte size header in the firmware format. */
622 if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
623 le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
628 tuner_info("Loading SCODE for type=");
629 dump_firm_type_and_int_freq(priv->firm[pos].type,
630 priv->firm[pos].int_freq);
631 printk("(%x), id %016llx.\n", priv->firm[pos].type,
632 (unsigned long long)*id);
634 if (priv->firm_version < 0x0202)
635 rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
637 rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
641 rc = i2c_send(priv, p, 12);
645 rc = send_seq(priv, {0x00, 0x8c});
652 static int check_firmware(struct dvb_frontend *fe, unsigned int type,
653 v4l2_std_id std, __u16 int_freq)
655 struct xc2028_data *priv = fe->tuner_priv;
656 struct firmware_properties new_fw;
657 int rc = 0, is_retry = 0;
658 u16 version, hwmodel;
661 tuner_dbg("%s called\n", __FUNCTION__);
664 if (!priv->ctrl.fname) {
665 tuner_info("xc2028/3028 firmware name not set!\n");
669 rc = load_all_firmwares(fe);
674 if (priv->ctrl.mts && !(type & FM))
680 new_fw.std_req = std;
681 new_fw.scode_table = SCODE | priv->ctrl.scode_table;
683 new_fw.int_freq = int_freq;
685 tuner_dbg("checking firmware, user requested type=");
687 dump_firm_type(new_fw.type);
688 printk("(%x), id %016llx, ", new_fw.type,
689 (unsigned long long)new_fw.std_req);
691 printk("scode_tbl ");
692 dump_firm_type(priv->ctrl.scode_table);
693 printk("(%x), ", priv->ctrl.scode_table);
695 printk("int_freq %d, ", new_fw.int_freq);
696 printk("scode_nr %d\n", new_fw.scode_nr);
699 /* No need to reload base firmware if it matches */
700 if (((BASE | new_fw.type) & BASE_TYPES) ==
701 (priv->cur_fw.type & BASE_TYPES)) {
702 tuner_dbg("BASE firmware not changed.\n");
706 /* Updating BASE - forget about all currently loaded firmware */
707 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
709 /* Reset is needed before loading firmware */
710 rc = priv->tuner_callback(priv->video_dev,
711 XC2028_TUNER_RESET, 0);
715 /* BASE firmwares are all std0 */
717 rc = load_firmware(fe, BASE | new_fw.type, &std0);
719 tuner_err("Error %d while loading base firmware\n",
724 /* Load INIT1, if needed */
725 tuner_dbg("Load init1 firmware, if exists\n");
727 rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
729 rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
731 if (rc < 0 && rc != -ENOENT) {
732 tuner_err("Error %d while loading init1 firmware\n",
739 * No need to reload standard specific firmware if base firmware
740 * was not reloaded and requested video standards have not changed.
742 if (priv->cur_fw.type == (BASE | new_fw.type) &&
743 priv->cur_fw.std_req == std) {
744 tuner_dbg("Std-specific firmware already loaded.\n");
745 goto skip_std_specific;
748 /* Reloading std-specific firmware forces a SCODE update */
749 priv->cur_fw.scode_table = 0;
751 rc = load_firmware(fe, new_fw.type, &new_fw.id);
753 rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
759 if (priv->cur_fw.scode_table == new_fw.scode_table &&
760 priv->cur_fw.scode_nr == new_fw.scode_nr) {
761 tuner_dbg("SCODE firmware already loaded.\n");
765 if (new_fw.type & FM)
768 /* Load SCODE firmware, if exists */
769 tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
771 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
772 new_fw.int_freq, new_fw.scode_nr);
775 if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
776 xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
777 tuner_err("Unable to read tuner registers.\n");
781 tuner_info("Device is Xceive %d version %d.%d, "
782 "firmware version %d.%d\n",
783 hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
784 (version & 0xf0) >> 4, version & 0xf);
786 /* Check firmware version against what we downloaded. */
787 if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
788 tuner_err("Incorrect readback of firmware version.\n");
792 /* Check that the tuner hardware model remains consistent over time. */
793 if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
794 priv->hwmodel = hwmodel;
795 priv->hwvers = version & 0xff00;
796 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
797 priv->hwvers != (version & 0xff00)) {
798 tuner_err("Read invalid device hardware information - tuner "
803 memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
806 * By setting BASE in cur_fw.type only after successfully loading all
808 * 1. Identify that BASE firmware with type=0 has been loaded;
809 * 2. Tell whether BASE firmware was just changed the next time through.
811 priv->cur_fw.type |= BASE;
816 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
820 tuner_dbg("Retrying firmware load\n");
829 static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
831 struct xc2028_data *priv = fe->tuner_priv;
832 u16 frq_lock, signal = 0;
835 tuner_dbg("%s called\n", __FUNCTION__);
837 mutex_lock(&priv->lock);
839 /* Sync Lock Indicator */
840 rc = xc2028_get_reg(priv, 0x0002, &frq_lock);
841 if (rc < 0 || frq_lock == 0)
844 /* Frequency is locked. Return signal quality */
846 /* Get SNR of the video signal */
847 rc = xc2028_get_reg(priv, 0x0040, &signal);
852 mutex_unlock(&priv->lock);
861 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
862 enum tuner_mode new_mode,
867 struct xc2028_data *priv = fe->tuner_priv;
869 unsigned char buf[4];
872 tuner_dbg("%s called\n", __FUNCTION__);
874 mutex_lock(&priv->lock);
876 tuner_dbg("should set frequency %d kHz\n", freq / 1000);
878 if (check_firmware(fe, type, std, int_freq) < 0)
881 /* On some cases xc2028 can disable video output, if
882 * very weak signals are received. By sending a soft
883 * reset, this is re-enabled. So, it is better to always
884 * send a soft reset before changing channels, to be sure
885 * that xc2028 will be in a safe state.
886 * Maybe this might also be needed for DTV.
888 if (new_mode == T_ANALOG_TV) {
889 rc = send_seq(priv, {0x00, 0x00});
890 } else if (priv->cur_fw.type & ATSC) {
895 * We must adjust the offset by 500kHz in two cases in order
896 * to correctly center the IF output:
897 * 1) When the ZARLINK456 or DIBCOM52 tables were explicitly
898 * selected and a 7MHz channel is tuned;
899 * 2) When tuning a VHF channel with DTV78 firmware.
901 if (((priv->cur_fw.type & DTV7) &&
902 (priv->cur_fw.scode_table & (ZARLINK456 | DIBCOM52))) ||
903 ((priv->cur_fw.type & DTV78) && freq < 470000000))
907 div = (freq - offset + DIV / 2) / DIV;
909 /* CMD= Set frequency */
910 if (priv->firm_version < 0x0202)
911 rc = send_seq(priv, {0x00, 0x02, 0x00, 0x00});
913 rc = send_seq(priv, {0x80, 0x02, 0x00, 0x00});
917 /* Return code shouldn't be checked.
918 The reset CLK is needed only with tm6000.
919 Driver should work fine even if this fails.
921 priv->tuner_callback(priv->video_dev, XC2028_RESET_CLK, 1);
925 buf[0] = 0xff & (div >> 24);
926 buf[1] = 0xff & (div >> 16);
927 buf[2] = 0xff & (div >> 8);
928 buf[3] = 0xff & (div);
930 rc = i2c_send(priv, buf, sizeof(buf));
935 priv->frequency = freq;
937 tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n",
938 buf[0], buf[1], buf[2], buf[3],
939 freq / 1000000, (freq % 1000000) / 1000);
944 mutex_unlock(&priv->lock);
949 static int xc2028_set_analog_freq(struct dvb_frontend *fe,
950 struct analog_parameters *p)
952 struct xc2028_data *priv = fe->tuner_priv;
955 tuner_dbg("%s called\n", __FUNCTION__);
957 if (p->mode == V4L2_TUNER_RADIO) {
959 if (priv->ctrl.input1)
961 return generic_set_freq(fe, (625l * p->frequency) / 10,
962 T_ANALOG_TV, type, 0, 0);
965 /* if std is not defined, choose one */
967 p->std = V4L2_STD_MN;
969 /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
970 if (!(p->std & V4L2_STD_MN))
973 /* Add audio hack to std mask */
974 p->std |= parse_audio_std_option();
976 return generic_set_freq(fe, 62500l * p->frequency,
977 T_ANALOG_TV, type, p->std, 0);
980 static int xc2028_set_params(struct dvb_frontend *fe,
981 struct dvb_frontend_parameters *p)
983 struct xc2028_data *priv = fe->tuner_priv;
985 fe_bandwidth_t bw = BANDWIDTH_8_MHZ;
988 tuner_dbg("%s called\n", __FUNCTION__);
990 if (priv->ctrl.d2633)
995 switch(fe->ops.info.type) {
997 bw = p->u.ofdm.bandwidth;
1000 tuner_info("WARN: There are some reports that "
1001 "QAM 6 MHz doesn't work.\n"
1002 "If this works for you, please report by "
1003 "e-mail to: v4l-dvb-maintainer@linuxtv.org\n");
1004 bw = BANDWIDTH_6_MHZ;
1008 bw = BANDWIDTH_6_MHZ;
1009 /* The only ATSC firmware (at least on v2.7) is D2633,
1010 so overrides ctrl->d2633 */
1011 type |= ATSC| D2633;
1014 /* DVB-S is not supported */
1020 case BANDWIDTH_8_MHZ:
1021 if (p->frequency < 470000000)
1022 priv->ctrl.vhfbw7 = 0;
1024 priv->ctrl.uhfbw8 = 1;
1025 type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8;
1028 case BANDWIDTH_7_MHZ:
1029 if (p->frequency < 470000000)
1030 priv->ctrl.vhfbw7 = 1;
1032 priv->ctrl.uhfbw8 = 0;
1033 type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7;
1036 case BANDWIDTH_6_MHZ:
1038 priv->ctrl.vhfbw7 = 0;
1039 priv->ctrl.uhfbw8 = 0;
1042 tuner_err("error: bandwidth not supported.\n");
1045 /* All S-code tables need a 200kHz shift */
1046 if (priv->ctrl.demod)
1047 demod = priv->ctrl.demod + 200;
1049 return generic_set_freq(fe, p->frequency,
1050 T_DIGITAL_TV, type, 0, demod);
1053 static int xc2028_sleep(struct dvb_frontend *fe)
1055 struct xc2028_data *priv = fe->tuner_priv;
1058 tuner_dbg("%s called\n", __FUNCTION__);
1060 mutex_lock(&priv->lock);
1062 if (priv->firm_version < 0x0202)
1063 rc = send_seq(priv, {0x00, 0x08, 0x00, 0x00});
1065 rc = send_seq(priv, {0x80, 0x08, 0x00, 0x00});
1067 priv->cur_fw.type = 0; /* need firmware reload */
1069 mutex_unlock(&priv->lock);
1075 static int xc2028_dvb_release(struct dvb_frontend *fe)
1077 struct xc2028_data *priv = fe->tuner_priv;
1079 tuner_dbg("%s called\n", __FUNCTION__);
1081 mutex_lock(&xc2028_list_mutex);
1086 list_del(&priv->xc2028_list);
1088 kfree(priv->ctrl.fname);
1090 free_firmware(priv);
1092 fe->tuner_priv = NULL;
1095 mutex_unlock(&xc2028_list_mutex);
1100 static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1102 struct xc2028_data *priv = fe->tuner_priv;
1104 tuner_dbg("%s called\n", __FUNCTION__);
1106 *frequency = priv->frequency;
1111 static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
1113 struct xc2028_data *priv = fe->tuner_priv;
1114 struct xc2028_ctrl *p = priv_cfg;
1117 tuner_dbg("%s called\n", __FUNCTION__);
1119 mutex_lock(&priv->lock);
1121 kfree(priv->ctrl.fname);
1122 free_firmware(priv);
1124 memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
1125 priv->ctrl.fname = NULL;
1128 priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
1129 if (priv->ctrl.fname == NULL)
1133 if (priv->ctrl.max_len < 9)
1134 priv->ctrl.max_len = 13;
1136 mutex_unlock(&priv->lock);
1141 static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
1143 .name = "Xceive XC3028",
1144 .frequency_min = 42000000,
1145 .frequency_max = 864000000,
1146 .frequency_step = 50000,
1149 .set_config = xc2028_set_config,
1150 .set_analog_params = xc2028_set_analog_freq,
1151 .release = xc2028_dvb_release,
1152 .get_frequency = xc2028_get_frequency,
1153 .get_rf_strength = xc2028_signal,
1154 .set_params = xc2028_set_params,
1155 .sleep = xc2028_sleep,
1159 struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
1160 struct xc2028_config *cfg)
1162 struct xc2028_data *priv;
1166 printk(KERN_DEBUG "xc2028: Xcv2028/3028 init called!\n");
1172 printk(KERN_ERR "xc2028: No frontend!\n");
1176 video_dev = cfg->i2c_adap->algo_data;
1179 printk(KERN_DEBUG "xc2028: video_dev =%p\n", video_dev);
1181 mutex_lock(&xc2028_list_mutex);
1183 list_for_each_entry(priv, &xc2028_list, xc2028_list) {
1184 if (&priv->i2c_props.adap->dev == &cfg->i2c_adap->dev) {
1187 printk(KERN_DEBUG "xc2028: reusing device\n");
1194 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
1196 mutex_unlock(&xc2028_list_mutex);
1200 priv->i2c_props.addr = cfg->i2c_addr;
1201 priv->i2c_props.adap = cfg->i2c_adap;
1202 priv->i2c_props.name = "xc2028";
1204 priv->video_dev = video_dev;
1205 priv->tuner_callback = cfg->callback;
1206 priv->ctrl.max_len = 13;
1208 mutex_init(&priv->lock);
1210 list_add_tail(&priv->xc2028_list, &xc2028_list);
1213 fe->tuner_priv = priv;
1217 printk(KERN_DEBUG "xc2028: usage count is %i\n", priv->count);
1219 memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
1220 sizeof(xc2028_dvb_tuner_ops));
1222 tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
1225 xc2028_set_config(fe, cfg->ctrl);
1227 mutex_unlock(&xc2028_list_mutex);
1232 EXPORT_SYMBOL(xc2028_attach);
1234 MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
1235 MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
1236 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
1237 MODULE_LICENSE("GPL");