1 // SPDX-License-Identifier: GPL-2.0-or-later
3 Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver
6 Copyright (C) 2006-2007 Georg Acher
7 Copyright (C) 2007-2008 Darron Broad
11 Added corrected signal strength support.
13 Sync with legacy version.
15 Copyright (C) 2008 Igor Liplianin
17 Fixed locking on high symbol rates (>30000).
18 Implement MPEG initialization parameter.
20 Fill set_voltage with actually control voltage code.
21 Correct set tone to not affect voltage.
25 #include <linux/slab.h>
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/firmware.h>
32 #include <media/dvb_frontend.h>
36 module_param(debug, int, 0644);
37 MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
39 #define dprintk(args...) \
42 printk(KERN_INFO "cx24116: " args); \
45 #define CX24116_DEFAULT_FIRMWARE "dvb-fe-cx24116.fw"
46 #define CX24116_SEARCH_RANGE_KHZ 5000
49 #define CX24116_REG_COMMAND (0x00) /* command args 0x00..0x1e */
50 #define CX24116_REG_EXECUTE (0x1f) /* execute command */
51 #define CX24116_REG_MAILBOX (0x96) /* FW or multipurpose mailbox? */
52 #define CX24116_REG_RESET (0x20) /* reset status > 0 */
53 #define CX24116_REG_SIGNAL (0x9e) /* signal low */
54 #define CX24116_REG_SSTATUS (0x9d) /* signal high / status */
55 #define CX24116_REG_QUALITY8 (0xa3)
56 #define CX24116_REG_QSTATUS (0xbc)
57 #define CX24116_REG_QUALITY0 (0xd5)
58 #define CX24116_REG_BER0 (0xc9)
59 #define CX24116_REG_BER8 (0xc8)
60 #define CX24116_REG_BER16 (0xc7)
61 #define CX24116_REG_BER24 (0xc6)
62 #define CX24116_REG_UCB0 (0xcb)
63 #define CX24116_REG_UCB8 (0xca)
64 #define CX24116_REG_CLKDIV (0xf3)
65 #define CX24116_REG_RATEDIV (0xf9)
67 /* configured fec (not tuned) or actual FEC (tuned) 1=1/2 2=2/3 etc */
68 #define CX24116_REG_FECSTATUS (0x9c)
71 /* mask to determine configured fec (not tuned) or actual fec (tuned) */
72 #define CX24116_FEC_FECMASK (0x1f)
74 /* Select DVB-S demodulator, else DVB-S2 */
75 #define CX24116_FEC_DVBS (0x20)
76 #define CX24116_FEC_UNKNOWN (0x40) /* Unknown/unused */
78 /* Pilot mode requested when tuning else always reset when tuned */
79 #define CX24116_FEC_PILOT (0x80)
82 #define CX24116_ARGLEN (0x1e)
85 #define CX24116_ROLLOFF_020 (0x00)
86 #define CX24116_ROLLOFF_025 (0x01)
87 #define CX24116_ROLLOFF_035 (0x02)
90 #define CX24116_PILOT_OFF (0x00)
91 #define CX24116_PILOT_ON (0x40)
94 #define CX24116_HAS_SIGNAL (0x01)
95 #define CX24116_HAS_CARRIER (0x02)
96 #define CX24116_HAS_VITERBI (0x04)
97 #define CX24116_HAS_SYNCLOCK (0x08)
98 #define CX24116_HAS_UNKNOWN1 (0x10)
99 #define CX24116_HAS_UNKNOWN2 (0x20)
100 #define CX24116_STATUS_MASK (0x0f)
101 #define CX24116_SIGNAL_MASK (0xc0)
103 #define CX24116_DISEQC_TONEOFF (0) /* toneburst never sent */
104 #define CX24116_DISEQC_TONECACHE (1) /* toneburst cached */
105 #define CX24116_DISEQC_MESGCACHE (2) /* message cached */
107 /* arg offset for DiSEqC */
108 #define CX24116_DISEQC_BURST (1)
109 #define CX24116_DISEQC_ARG2_2 (2) /* unknown value=2 */
110 #define CX24116_DISEQC_ARG3_0 (3) /* unknown value=0 */
111 #define CX24116_DISEQC_ARG4_0 (4) /* unknown value=0 */
112 #define CX24116_DISEQC_MSGLEN (5)
113 #define CX24116_DISEQC_MSGOFS (6)
116 #define CX24116_DISEQC_MINI_A (0)
117 #define CX24116_DISEQC_MINI_B (1)
119 /* DiSEqC tone burst */
120 static int toneburst = 1;
121 module_param(toneburst, int, 0644);
122 MODULE_PARM_DESC(toneburst, "DiSEqC toneburst 0=OFF, 1=TONE CACHE, "\
123 "2=MESSAGE CACHE (default:1)");
125 /* SNR measurements */
127 module_param(esno_snr, int, 0644);
128 MODULE_PARM_DESC(esno_snr, "SNR return units, 0=PERCENTAGE 0-100, "\
129 "1=ESNO(db * 10) (default:0)");
133 CMD_TUNEREQUEST = 0x11,
134 CMD_MPEGCONFIG = 0x13,
135 CMD_TUNERINIT = 0x14,
136 CMD_BANDWIDTH = 0x15,
138 CMD_LNBCONFIG = 0x20,
139 CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */
140 CMD_LNBDCLEVEL = 0x22,
142 CMD_UPDFWVERS = 0x35,
143 CMD_TUNERSLEEP = 0x36,
144 CMD_AGCCONTROL = 0x3b, /* Unknown */
147 /* The Demod/Tuner can't easily provide these, we cache them */
148 struct cx24116_tuning {
151 enum fe_spectral_inversion inversion;
152 enum fe_code_rate fec;
154 enum fe_delivery_system delsys;
155 enum fe_modulation modulation;
157 enum fe_rolloff rolloff;
167 /* Basic commands that are sent to the firmware */
170 u8 args[CX24116_ARGLEN];
173 struct cx24116_state {
174 struct i2c_adapter *i2c;
175 const struct cx24116_config *config;
177 struct dvb_frontend frontend;
179 struct cx24116_tuning dcur;
180 struct cx24116_tuning dnxt;
184 struct cx24116_cmd dsec_cmd;
187 static int cx24116_writereg(struct cx24116_state *state, int reg, int data)
189 u8 buf[] = { reg, data };
190 struct i2c_msg msg = { .addr = state->config->demod_address,
191 .flags = 0, .buf = buf, .len = 2 };
195 printk("cx24116: %s: write reg 0x%02x, value 0x%02x\n",
196 __func__, reg, data);
198 err = i2c_transfer(state->i2c, &msg, 1);
200 printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x, value == 0x%02x)\n",
201 __func__, err, reg, data);
208 /* Bulk byte writes to a single I2C address, for 32k firmware load */
209 static int cx24116_writeregN(struct cx24116_state *state, int reg,
210 const u8 *data, u16 len)
216 buf = kmalloc(len + 1, GFP_KERNEL);
221 memcpy(buf + 1, data, len);
223 msg.addr = state->config->demod_address;
229 printk(KERN_INFO "cx24116: %s: write regN 0x%02x, len = %d\n",
232 ret = i2c_transfer(state->i2c, &msg, 1);
234 printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x\n",
244 static int cx24116_readreg(struct cx24116_state *state, u8 reg)
249 struct i2c_msg msg[] = {
250 { .addr = state->config->demod_address, .flags = 0,
251 .buf = b0, .len = 1 },
252 { .addr = state->config->demod_address, .flags = I2C_M_RD,
253 .buf = b1, .len = 1 }
256 ret = i2c_transfer(state->i2c, msg, 2);
259 printk(KERN_ERR "%s: reg=0x%x (error=%d)\n",
265 printk(KERN_INFO "cx24116: read reg 0x%02x, value 0x%02x\n",
271 static int cx24116_set_inversion(struct cx24116_state *state,
272 enum fe_spectral_inversion inversion)
274 dprintk("%s(%d)\n", __func__, inversion);
278 state->dnxt.inversion_val = 0x00;
281 state->dnxt.inversion_val = 0x04;
284 state->dnxt.inversion_val = 0x0C;
290 state->dnxt.inversion = inversion;
296 * modfec (modulation and FEC)
297 * ===========================
299 * MOD FEC mask/val standard
300 * ---- -------- ----------- --------
301 * QPSK FEC_1_2 0x02 0x02+X DVB-S
302 * QPSK FEC_2_3 0x04 0x02+X DVB-S
303 * QPSK FEC_3_4 0x08 0x02+X DVB-S
304 * QPSK FEC_4_5 0x10 0x02+X DVB-S (?)
305 * QPSK FEC_5_6 0x20 0x02+X DVB-S
306 * QPSK FEC_6_7 0x40 0x02+X DVB-S
307 * QPSK FEC_7_8 0x80 0x02+X DVB-S
308 * QPSK FEC_8_9 0x01 0x02+X DVB-S (?) (NOT SUPPORTED?)
309 * QPSK AUTO 0xff 0x02+X DVB-S
311 * For DVB-S high byte probably represents FEC
312 * and low byte selects the modulator. The high
313 * byte is search range mask. Bit 5 may turn
314 * on DVB-S and remaining bits represent some
315 * kind of calibration (how/what i do not know).
317 * Eg.(2/3) szap "Zone Horror"
319 * mask/val = 0x04, 0x20
320 * status 1f | signal c3c0 | snr a333 | ber 00000098 | unc 0 | FE_HAS_LOCK
322 * mask/val = 0x04, 0x30
323 * status 1f | signal c3c0 | snr a333 | ber 00000000 | unc 0 | FE_HAS_LOCK
325 * After tuning FECSTATUS contains actual FEC
326 * in use numbered 1 through to 8 for 1/2 .. 2/3 etc
328 * NBC=NOT/NON BACKWARD COMPATIBLE WITH DVB-S (DVB-S2 only)
330 * NBC-QPSK FEC_1_2 0x00, 0x04 DVB-S2
331 * NBC-QPSK FEC_3_5 0x00, 0x05 DVB-S2
332 * NBC-QPSK FEC_2_3 0x00, 0x06 DVB-S2
333 * NBC-QPSK FEC_3_4 0x00, 0x07 DVB-S2
334 * NBC-QPSK FEC_4_5 0x00, 0x08 DVB-S2
335 * NBC-QPSK FEC_5_6 0x00, 0x09 DVB-S2
336 * NBC-QPSK FEC_8_9 0x00, 0x0a DVB-S2
337 * NBC-QPSK FEC_9_10 0x00, 0x0b DVB-S2
339 * NBC-8PSK FEC_3_5 0x00, 0x0c DVB-S2
340 * NBC-8PSK FEC_2_3 0x00, 0x0d DVB-S2
341 * NBC-8PSK FEC_3_4 0x00, 0x0e DVB-S2
342 * NBC-8PSK FEC_5_6 0x00, 0x0f DVB-S2
343 * NBC-8PSK FEC_8_9 0x00, 0x10 DVB-S2
344 * NBC-8PSK FEC_9_10 0x00, 0x11 DVB-S2
346 * For DVB-S2 low bytes selects both modulator
347 * and FEC. High byte is meaningless here. To
348 * set pilot, bit 6 (0x40) is set. When inspecting
349 * FECSTATUS bit 7 (0x80) represents the pilot
350 * selection whilst not tuned. When tuned, actual FEC
351 * in use is found in FECSTATUS as per above. Pilot
355 /* A table of modulation, fec and configuration bytes for the demod.
356 * Not all S2 mmodulation schemes are support and not all rates with
357 * a scheme are support. Especially, no auto detect when in S2 mode.
359 static struct cx24116_modfec {
360 enum fe_delivery_system delivery_system;
361 enum fe_modulation modulation;
362 enum fe_code_rate fec;
363 u8 mask; /* In DVBS mode this is used to autodetect */
364 u8 val; /* Passed to the firmware to indicate mode selection */
365 } CX24116_MODFEC_MODES[] = {
366 /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */
368 /*mod fec mask val */
369 { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 },
370 { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */
371 { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */
372 { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */
373 { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */
374 { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */
375 { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */
376 { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */
377 { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */
378 { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 },
380 { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 },
381 { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 },
382 { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 },
383 { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 },
384 { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 },
385 { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 },
386 { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a },
387 { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b },
389 { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c },
390 { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d },
391 { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e },
392 { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f },
393 { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 },
394 { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 },
396 * `val' can be found in the FECSTATUS register when tuning.
397 * FECSTATUS will give the actual FEC in use if tuning was successful.
401 static int cx24116_lookup_fecmod(struct cx24116_state *state,
402 enum fe_delivery_system d, enum fe_modulation m, enum fe_code_rate f)
404 int i, ret = -EOPNOTSUPP;
406 dprintk("%s(0x%02x,0x%02x)\n", __func__, m, f);
408 for (i = 0; i < ARRAY_SIZE(CX24116_MODFEC_MODES); i++) {
409 if ((d == CX24116_MODFEC_MODES[i].delivery_system) &&
410 (m == CX24116_MODFEC_MODES[i].modulation) &&
411 (f == CX24116_MODFEC_MODES[i].fec)) {
420 static int cx24116_set_fec(struct cx24116_state *state,
421 enum fe_delivery_system delsys,
422 enum fe_modulation mod,
423 enum fe_code_rate fec)
427 dprintk("%s(0x%02x,0x%02x)\n", __func__, mod, fec);
429 ret = cx24116_lookup_fecmod(state, delsys, mod, fec);
434 state->dnxt.fec = fec;
435 state->dnxt.fec_val = CX24116_MODFEC_MODES[ret].val;
436 state->dnxt.fec_mask = CX24116_MODFEC_MODES[ret].mask;
437 dprintk("%s() mask/val = 0x%02x/0x%02x\n", __func__,
438 state->dnxt.fec_mask, state->dnxt.fec_val);
443 static int cx24116_set_symbolrate(struct cx24116_state *state, u32 rate)
445 dprintk("%s(%d)\n", __func__, rate);
447 /* check if symbol rate is within limits */
448 if ((rate > state->frontend.ops.info.symbol_rate_max) ||
449 (rate < state->frontend.ops.info.symbol_rate_min)) {
450 dprintk("%s() unsupported symbol_rate = %d\n", __func__, rate);
454 state->dnxt.symbol_rate = rate;
455 dprintk("%s() symbol_rate = %d\n", __func__, rate);
460 static int cx24116_load_firmware(struct dvb_frontend *fe,
461 const struct firmware *fw);
463 static int cx24116_firmware_ondemand(struct dvb_frontend *fe)
465 struct cx24116_state *state = fe->demodulator_priv;
466 const struct firmware *fw;
469 dprintk("%s()\n", __func__);
471 if (cx24116_readreg(state, 0x20) > 0) {
473 if (state->skip_fw_load)
477 /* request the firmware, this will block until loaded */
478 printk(KERN_INFO "%s: Waiting for firmware upload (%s)...\n",
479 __func__, CX24116_DEFAULT_FIRMWARE);
480 ret = request_firmware(&fw, CX24116_DEFAULT_FIRMWARE,
481 state->i2c->dev.parent);
482 printk(KERN_INFO "%s: Waiting for firmware upload(2)...\n",
485 printk(KERN_ERR "%s: No firmware uploaded (timeout or file not found?)\n",
490 /* Make sure we don't recurse back through here
492 state->skip_fw_load = 1;
494 ret = cx24116_load_firmware(fe, fw);
496 printk(KERN_ERR "%s: Writing firmware to device failed\n",
499 release_firmware(fw);
501 printk(KERN_INFO "%s: Firmware upload %s\n", __func__,
502 ret == 0 ? "complete" : "failed");
504 /* Ensure firmware is always loaded if required */
505 state->skip_fw_load = 0;
511 /* Take a basic firmware command structure, format it
512 * and forward it for processing
514 static int cx24116_cmd_execute(struct dvb_frontend *fe, struct cx24116_cmd *cmd)
516 struct cx24116_state *state = fe->demodulator_priv;
519 dprintk("%s()\n", __func__);
521 /* Load the firmware if required */
522 ret = cx24116_firmware_ondemand(fe);
524 printk(KERN_ERR "%s(): Unable initialise the firmware\n",
529 /* Write the command */
530 for (i = 0; i < cmd->len ; i++) {
531 dprintk("%s: 0x%02x == 0x%02x\n", __func__, i, cmd->args[i]);
532 cx24116_writereg(state, i, cmd->args[i]);
535 /* Start execution and wait for cmd to terminate */
536 cx24116_writereg(state, CX24116_REG_EXECUTE, 0x01);
537 while (cx24116_readreg(state, CX24116_REG_EXECUTE)) {
540 /* Avoid looping forever if the firmware does
542 printk(KERN_WARNING "%s() Firmware not responding\n",
550 static int cx24116_load_firmware(struct dvb_frontend *fe,
551 const struct firmware *fw)
553 struct cx24116_state *state = fe->demodulator_priv;
554 struct cx24116_cmd cmd;
555 int i, ret, len, max, remaining;
556 unsigned char vers[4];
558 dprintk("%s\n", __func__);
559 dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n",
563 fw->data[fw->size-2],
564 fw->data[fw->size-1]);
566 /* Toggle 88x SRST pin to reset demod */
567 if (state->config->reset_device)
568 state->config->reset_device(fe);
570 /* Begin the firmware load process */
571 /* Prepare the demod, load the firmware, cleanup after load */
574 cx24116_writereg(state, 0xE5, 0x00);
575 cx24116_writereg(state, 0xF1, 0x08);
576 cx24116_writereg(state, 0xF2, 0x13);
579 cx24116_writereg(state, 0xe0, 0x03);
580 cx24116_writereg(state, 0xe0, 0x00);
583 cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46);
584 cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00);
587 cx24116_writereg(state, 0xF0, 0x03);
588 cx24116_writereg(state, 0xF4, 0x81);
589 cx24116_writereg(state, 0xF5, 0x00);
590 cx24116_writereg(state, 0xF6, 0x00);
592 /* Split firmware to the max I2C write len and write.
593 * Writes whole firmware as one write when i2c_wr_max is set to 0. */
594 if (state->config->i2c_wr_max)
595 max = state->config->i2c_wr_max;
597 max = INT_MAX; /* enough for 32k firmware */
599 for (remaining = fw->size; remaining > 0; remaining -= max - 1) {
604 cx24116_writeregN(state, 0xF7, &fw->data[fw->size - remaining],
608 cx24116_writereg(state, 0xF4, 0x10);
609 cx24116_writereg(state, 0xF0, 0x00);
610 cx24116_writereg(state, 0xF8, 0x06);
612 /* Firmware CMD 10: VCO config */
613 cmd.args[0x00] = CMD_SET_VCO;
614 cmd.args[0x01] = 0x05;
615 cmd.args[0x02] = 0xdc;
616 cmd.args[0x03] = 0xda;
617 cmd.args[0x04] = 0xae;
618 cmd.args[0x05] = 0xaa;
619 cmd.args[0x06] = 0x04;
620 cmd.args[0x07] = 0x9d;
621 cmd.args[0x08] = 0xfc;
622 cmd.args[0x09] = 0x06;
624 ret = cx24116_cmd_execute(fe, &cmd);
628 cx24116_writereg(state, CX24116_REG_SSTATUS, 0x00);
630 /* Firmware CMD 14: Tuner config */
631 cmd.args[0x00] = CMD_TUNERINIT;
632 cmd.args[0x01] = 0x00;
633 cmd.args[0x02] = 0x00;
635 ret = cx24116_cmd_execute(fe, &cmd);
639 cx24116_writereg(state, 0xe5, 0x00);
641 /* Firmware CMD 13: MPEG config */
642 cmd.args[0x00] = CMD_MPEGCONFIG;
643 cmd.args[0x01] = 0x01;
644 cmd.args[0x02] = 0x75;
645 cmd.args[0x03] = 0x00;
646 if (state->config->mpg_clk_pos_pol)
647 cmd.args[0x04] = state->config->mpg_clk_pos_pol;
649 cmd.args[0x04] = 0x02;
650 cmd.args[0x05] = 0x00;
652 ret = cx24116_cmd_execute(fe, &cmd);
656 /* Firmware CMD 35: Get firmware version */
657 cmd.args[0x00] = CMD_UPDFWVERS;
659 for (i = 0; i < 4; i++) {
661 ret = cx24116_cmd_execute(fe, &cmd);
664 vers[i] = cx24116_readreg(state, CX24116_REG_MAILBOX);
666 printk(KERN_INFO "%s: FW version %i.%i.%i.%i\n", __func__,
667 vers[0], vers[1], vers[2], vers[3]);
672 static int cx24116_read_status(struct dvb_frontend *fe, enum fe_status *status)
674 struct cx24116_state *state = fe->demodulator_priv;
676 int lock = cx24116_readreg(state, CX24116_REG_SSTATUS) &
679 dprintk("%s: status = 0x%02x\n", __func__, lock);
683 if (lock & CX24116_HAS_SIGNAL)
684 *status |= FE_HAS_SIGNAL;
685 if (lock & CX24116_HAS_CARRIER)
686 *status |= FE_HAS_CARRIER;
687 if (lock & CX24116_HAS_VITERBI)
688 *status |= FE_HAS_VITERBI;
689 if (lock & CX24116_HAS_SYNCLOCK)
690 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
695 static int cx24116_read_ber(struct dvb_frontend *fe, u32 *ber)
697 struct cx24116_state *state = fe->demodulator_priv;
699 dprintk("%s()\n", __func__);
701 *ber = (cx24116_readreg(state, CX24116_REG_BER24) << 24) |
702 (cx24116_readreg(state, CX24116_REG_BER16) << 16) |
703 (cx24116_readreg(state, CX24116_REG_BER8) << 8) |
704 cx24116_readreg(state, CX24116_REG_BER0);
709 /* TODO Determine function and scale appropriately */
710 static int cx24116_read_signal_strength(struct dvb_frontend *fe,
711 u16 *signal_strength)
713 struct cx24116_state *state = fe->demodulator_priv;
714 struct cx24116_cmd cmd;
718 dprintk("%s()\n", __func__);
720 /* Firmware CMD 19: Get AGC */
721 cmd.args[0x00] = CMD_GETAGC;
723 ret = cx24116_cmd_execute(fe, &cmd);
728 (cx24116_readreg(state,
729 CX24116_REG_SSTATUS) & CX24116_SIGNAL_MASK) |
730 (cx24116_readreg(state, CX24116_REG_SIGNAL) << 6);
731 *signal_strength = 0 - sig_reading;
733 dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n",
734 __func__, sig_reading, *signal_strength);
739 /* SNR (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */
740 static int cx24116_read_snr_pct(struct dvb_frontend *fe, u16 *snr)
742 struct cx24116_state *state = fe->demodulator_priv;
744 static const u32 snr_tab[] = { /* 10 x Table (rounded up) */
745 0x00000, 0x0199A, 0x03333, 0x04ccD, 0x06667,
746 0x08000, 0x0999A, 0x0b333, 0x0cccD, 0x0e667,
747 0x10000, 0x1199A, 0x13333, 0x14ccD, 0x16667,
750 dprintk("%s()\n", __func__);
752 snr_reading = cx24116_readreg(state, CX24116_REG_QUALITY0);
754 if (snr_reading >= 0xa0 /* 100% */)
757 *snr = snr_tab[(snr_reading & 0xf0) >> 4] +
758 (snr_tab[(snr_reading & 0x0f)] >> 4);
760 dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__,
766 /* The reelbox patches show the value in the registers represents
767 * ESNO, from 0->30db (values 0->300). We provide this value by
770 static int cx24116_read_snr_esno(struct dvb_frontend *fe, u16 *snr)
772 struct cx24116_state *state = fe->demodulator_priv;
774 dprintk("%s()\n", __func__);
776 *snr = cx24116_readreg(state, CX24116_REG_QUALITY8) << 8 |
777 cx24116_readreg(state, CX24116_REG_QUALITY0);
779 dprintk("%s: raw 0x%04x\n", __func__, *snr);
784 static int cx24116_read_snr(struct dvb_frontend *fe, u16 *snr)
787 return cx24116_read_snr_esno(fe, snr);
789 return cx24116_read_snr_pct(fe, snr);
792 static int cx24116_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
794 struct cx24116_state *state = fe->demodulator_priv;
796 dprintk("%s()\n", __func__);
798 *ucblocks = (cx24116_readreg(state, CX24116_REG_UCB8) << 8) |
799 cx24116_readreg(state, CX24116_REG_UCB0);
804 /* Overwrite the current tuning params, we are about to tune */
805 static void cx24116_clone_params(struct dvb_frontend *fe)
807 struct cx24116_state *state = fe->demodulator_priv;
808 state->dcur = state->dnxt;
812 static int cx24116_wait_for_lnb(struct dvb_frontend *fe)
814 struct cx24116_state *state = fe->demodulator_priv;
817 dprintk("%s() qstatus = 0x%02x\n", __func__,
818 cx24116_readreg(state, CX24116_REG_QSTATUS));
820 /* Wait for up to 300 ms */
821 for (i = 0; i < 30 ; i++) {
822 if (cx24116_readreg(state, CX24116_REG_QSTATUS) & 0x20)
827 dprintk("%s(): LNB not ready\n", __func__);
829 return -ETIMEDOUT; /* -EBUSY ? */
832 static int cx24116_set_voltage(struct dvb_frontend *fe,
833 enum fe_sec_voltage voltage)
835 struct cx24116_cmd cmd;
838 dprintk("%s: %s\n", __func__,
839 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
840 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
842 /* Wait for LNB ready */
843 ret = cx24116_wait_for_lnb(fe);
847 /* Wait for voltage/min repeat delay */
850 cmd.args[0x00] = CMD_LNBDCLEVEL;
851 cmd.args[0x01] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00);
854 /* Min delay time before DiSEqC send */
857 return cx24116_cmd_execute(fe, &cmd);
860 static int cx24116_set_tone(struct dvb_frontend *fe,
861 enum fe_sec_tone_mode tone)
863 struct cx24116_cmd cmd;
866 dprintk("%s(%d)\n", __func__, tone);
867 if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) {
868 printk(KERN_ERR "%s: Invalid, tone=%d\n", __func__, tone);
872 /* Wait for LNB ready */
873 ret = cx24116_wait_for_lnb(fe);
877 /* Min delay time after DiSEqC send */
878 msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */
880 /* Now we set the tone */
881 cmd.args[0x00] = CMD_SET_TONE;
882 cmd.args[0x01] = 0x00;
883 cmd.args[0x02] = 0x00;
887 dprintk("%s: setting tone on\n", __func__);
888 cmd.args[0x03] = 0x01;
891 dprintk("%s: setting tone off\n", __func__);
892 cmd.args[0x03] = 0x00;
897 /* Min delay time before DiSEqC send */
898 msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */
900 return cx24116_cmd_execute(fe, &cmd);
903 /* Initialise DiSEqC */
904 static int cx24116_diseqc_init(struct dvb_frontend *fe)
906 struct cx24116_state *state = fe->demodulator_priv;
907 struct cx24116_cmd cmd;
910 /* Firmware CMD 20: LNB/DiSEqC config */
911 cmd.args[0x00] = CMD_LNBCONFIG;
912 cmd.args[0x01] = 0x00;
913 cmd.args[0x02] = 0x10;
914 cmd.args[0x03] = 0x00;
915 cmd.args[0x04] = 0x8f;
916 cmd.args[0x05] = 0x28;
917 cmd.args[0x06] = (toneburst == CX24116_DISEQC_TONEOFF) ? 0x00 : 0x01;
918 cmd.args[0x07] = 0x01;
920 ret = cx24116_cmd_execute(fe, &cmd);
924 /* Prepare a DiSEqC command */
925 state->dsec_cmd.args[0x00] = CMD_LNBSEND;
928 state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A;
931 state->dsec_cmd.args[CX24116_DISEQC_ARG2_2] = 0x02;
932 state->dsec_cmd.args[CX24116_DISEQC_ARG3_0] = 0x00;
933 /* Continuation flag? */
934 state->dsec_cmd.args[CX24116_DISEQC_ARG4_0] = 0x00;
936 /* DiSEqC message length */
937 state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = 0x00;
940 state->dsec_cmd.len = CX24116_DISEQC_MSGOFS;
945 /* Send DiSEqC message with derived burst (hack) || previous burst */
946 static int cx24116_send_diseqc_msg(struct dvb_frontend *fe,
947 struct dvb_diseqc_master_cmd *d)
949 struct cx24116_state *state = fe->demodulator_priv;
952 /* Validate length */
953 if (d->msg_len > sizeof(d->msg))
956 /* Dump DiSEqC message */
958 printk(KERN_INFO "cx24116: %s(", __func__);
959 for (i = 0 ; i < d->msg_len ;) {
960 printk(KERN_INFO "0x%02x", d->msg[i]);
961 if (++i < d->msg_len)
962 printk(KERN_INFO ", ");
964 printk(") toneburst=%d\n", toneburst);
968 for (i = 0; i < d->msg_len; i++)
969 state->dsec_cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[i];
971 /* DiSEqC message length */
972 state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = d->msg_len;
975 state->dsec_cmd.len = CX24116_DISEQC_MSGOFS +
976 state->dsec_cmd.args[CX24116_DISEQC_MSGLEN];
978 /* DiSEqC toneburst */
979 if (toneburst == CX24116_DISEQC_MESGCACHE)
980 /* Message is cached */
983 else if (toneburst == CX24116_DISEQC_TONEOFF)
984 /* Message is sent without burst */
985 state->dsec_cmd.args[CX24116_DISEQC_BURST] = 0;
987 else if (toneburst == CX24116_DISEQC_TONECACHE) {
989 * Message is sent with derived else cached burst
991 * WRITE PORT GROUP COMMAND 38
993 * 0/A/A: E0 10 38 F0..F3
994 * 1/B/B: E0 10 38 F4..F7
995 * 2/C/A: E0 10 38 F8..FB
996 * 3/D/B: E0 10 38 FC..FF
998 * databyte[3]= 8421:8421
1002 * WX= PORT SELECT 0..3 (X=TONEBURST)
1003 * Y = VOLTAGE (0=13V, 1=18V)
1004 * Z = BAND (0=LOW, 1=HIGH(22K))
1006 if (d->msg_len >= 4 && d->msg[2] == 0x38)
1007 state->dsec_cmd.args[CX24116_DISEQC_BURST] =
1008 ((d->msg[3] & 4) >> 2);
1010 dprintk("%s burst=%d\n", __func__,
1011 state->dsec_cmd.args[CX24116_DISEQC_BURST]);
1014 /* Wait for LNB ready */
1015 ret = cx24116_wait_for_lnb(fe);
1019 /* Wait for voltage/min repeat delay */
1023 ret = cx24116_cmd_execute(fe, &state->dsec_cmd);
1030 * >15ms delay + (XXX determine if FW does this, see set_tone)
1034 * >15ms delay (XXX determine if FW does this, see set_tone)
1036 msleep((state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) +
1037 ((toneburst == CX24116_DISEQC_TONEOFF) ? 30 : 60));
1042 /* Send DiSEqC burst */
1043 static int cx24116_diseqc_send_burst(struct dvb_frontend *fe,
1044 enum fe_sec_mini_cmd burst)
1046 struct cx24116_state *state = fe->demodulator_priv;
1049 dprintk("%s(%d) toneburst=%d\n", __func__, burst, toneburst);
1052 if (burst == SEC_MINI_A)
1053 state->dsec_cmd.args[CX24116_DISEQC_BURST] =
1054 CX24116_DISEQC_MINI_A;
1055 else if (burst == SEC_MINI_B)
1056 state->dsec_cmd.args[CX24116_DISEQC_BURST] =
1057 CX24116_DISEQC_MINI_B;
1061 /* DiSEqC toneburst */
1062 if (toneburst != CX24116_DISEQC_MESGCACHE)
1063 /* Burst is cached */
1066 /* Burst is to be sent with cached message */
1068 /* Wait for LNB ready */
1069 ret = cx24116_wait_for_lnb(fe);
1073 /* Wait for voltage/min repeat delay */
1077 ret = cx24116_cmd_execute(fe, &state->dsec_cmd);
1085 * >15ms delay + (XXX determine if FW does this, see set_tone)
1089 * >15ms delay (XXX determine if FW does this, see set_tone)
1091 msleep((state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + 60);
1096 static void cx24116_release(struct dvb_frontend *fe)
1098 struct cx24116_state *state = fe->demodulator_priv;
1099 dprintk("%s\n", __func__);
1103 static const struct dvb_frontend_ops cx24116_ops;
1105 struct dvb_frontend *cx24116_attach(const struct cx24116_config *config,
1106 struct i2c_adapter *i2c)
1108 struct cx24116_state *state;
1111 dprintk("%s\n", __func__);
1113 /* allocate memory for the internal state */
1114 state = kzalloc(sizeof(*state), GFP_KERNEL);
1118 state->config = config;
1121 /* check if the demod is present */
1122 ret = (cx24116_readreg(state, 0xFF) << 8) |
1123 cx24116_readreg(state, 0xFE);
1124 if (ret != 0x0501) {
1126 printk(KERN_INFO "Invalid probe, probably not a CX24116 device\n");
1130 /* create dvb_frontend */
1131 memcpy(&state->frontend.ops, &cx24116_ops,
1132 sizeof(struct dvb_frontend_ops));
1133 state->frontend.demodulator_priv = state;
1134 return &state->frontend;
1136 EXPORT_SYMBOL(cx24116_attach);
1139 * Initialise or wake up device
1141 * Power config will reset and load initial firmware if required
1143 static int cx24116_initfe(struct dvb_frontend *fe)
1145 struct cx24116_state *state = fe->demodulator_priv;
1146 struct cx24116_cmd cmd;
1149 dprintk("%s()\n", __func__);
1152 cx24116_writereg(state, 0xe0, 0);
1153 cx24116_writereg(state, 0xe1, 0);
1154 cx24116_writereg(state, 0xea, 0);
1156 /* Firmware CMD 36: Power config */
1157 cmd.args[0x00] = CMD_TUNERSLEEP;
1160 ret = cx24116_cmd_execute(fe, &cmd);
1164 ret = cx24116_diseqc_init(fe);
1168 /* HVR-4000 needs this */
1169 return cx24116_set_voltage(fe, SEC_VOLTAGE_13);
1173 * Put device to sleep
1175 static int cx24116_sleep(struct dvb_frontend *fe)
1177 struct cx24116_state *state = fe->demodulator_priv;
1178 struct cx24116_cmd cmd;
1181 dprintk("%s()\n", __func__);
1183 /* Firmware CMD 36: Power config */
1184 cmd.args[0x00] = CMD_TUNERSLEEP;
1187 ret = cx24116_cmd_execute(fe, &cmd);
1191 /* Power off (Shutdown clocks) */
1192 cx24116_writereg(state, 0xea, 0xff);
1193 cx24116_writereg(state, 0xe1, 1);
1194 cx24116_writereg(state, 0xe0, 1);
1199 /* dvb-core told us to tune, the tv property cache will be complete,
1200 * it's safe for is to pull values and use them for tuning purposes.
1202 static int cx24116_set_frontend(struct dvb_frontend *fe)
1204 struct cx24116_state *state = fe->demodulator_priv;
1205 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1206 struct cx24116_cmd cmd;
1207 enum fe_status tunerstat;
1208 int i, status, ret, retune = 1;
1210 dprintk("%s()\n", __func__);
1212 switch (c->delivery_system) {
1214 dprintk("%s: DVB-S delivery system selected\n", __func__);
1216 /* Only QPSK is supported for DVB-S */
1217 if (c->modulation != QPSK) {
1218 dprintk("%s: unsupported modulation selected (%d)\n",
1219 __func__, c->modulation);
1223 /* Pilot doesn't exist in DVB-S, turn bit off */
1224 state->dnxt.pilot_val = CX24116_PILOT_OFF;
1226 /* DVB-S only supports 0.35 */
1227 if (c->rolloff != ROLLOFF_35) {
1228 dprintk("%s: unsupported rolloff selected (%d)\n",
1229 __func__, c->rolloff);
1232 state->dnxt.rolloff_val = CX24116_ROLLOFF_035;
1236 dprintk("%s: DVB-S2 delivery system selected\n", __func__);
1239 * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2,
1240 * but not hardware auto detection
1242 if (c->modulation != PSK_8 && c->modulation != QPSK) {
1243 dprintk("%s: unsupported modulation selected (%d)\n",
1244 __func__, c->modulation);
1249 case PILOT_AUTO: /* Not supported but emulated */
1250 state->dnxt.pilot_val = (c->modulation == QPSK)
1251 ? CX24116_PILOT_OFF : CX24116_PILOT_ON;
1255 state->dnxt.pilot_val = CX24116_PILOT_OFF;
1258 state->dnxt.pilot_val = CX24116_PILOT_ON;
1261 dprintk("%s: unsupported pilot mode selected (%d)\n",
1262 __func__, c->pilot);
1266 switch (c->rolloff) {
1268 state->dnxt.rolloff_val = CX24116_ROLLOFF_020;
1271 state->dnxt.rolloff_val = CX24116_ROLLOFF_025;
1274 state->dnxt.rolloff_val = CX24116_ROLLOFF_035;
1276 case ROLLOFF_AUTO: /* Rolloff must be explicit */
1278 dprintk("%s: unsupported rolloff selected (%d)\n",
1279 __func__, c->rolloff);
1285 dprintk("%s: unsupported delivery system selected (%d)\n",
1286 __func__, c->delivery_system);
1289 state->dnxt.delsys = c->delivery_system;
1290 state->dnxt.modulation = c->modulation;
1291 state->dnxt.frequency = c->frequency;
1292 state->dnxt.pilot = c->pilot;
1293 state->dnxt.rolloff = c->rolloff;
1295 ret = cx24116_set_inversion(state, c->inversion);
1299 /* FEC_NONE/AUTO for DVB-S2 is not supported and detected here */
1300 ret = cx24116_set_fec(state, c->delivery_system, c->modulation, c->fec_inner);
1304 ret = cx24116_set_symbolrate(state, c->symbol_rate);
1308 /* discard the 'current' tuning parameters and prepare to tune */
1309 cx24116_clone_params(fe);
1311 dprintk("%s: delsys = %d\n", __func__, state->dcur.delsys);
1312 dprintk("%s: modulation = %d\n", __func__, state->dcur.modulation);
1313 dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency);
1314 dprintk("%s: pilot = %d (val = 0x%02x)\n", __func__,
1315 state->dcur.pilot, state->dcur.pilot_val);
1316 dprintk("%s: retune = %d\n", __func__, retune);
1317 dprintk("%s: rolloff = %d (val = 0x%02x)\n", __func__,
1318 state->dcur.rolloff, state->dcur.rolloff_val);
1319 dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
1320 dprintk("%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
1321 state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val);
1322 dprintk("%s: Inversion = %d (val = 0x%02x)\n", __func__,
1323 state->dcur.inversion, state->dcur.inversion_val);
1325 /* This is also done in advise/acquire on HVR4000 but not on LITE */
1326 if (state->config->set_ts_params)
1327 state->config->set_ts_params(fe, 0);
1330 cmd.args[0x00] = CMD_BANDWIDTH;
1331 cmd.args[0x01] = 0x01;
1333 ret = cx24116_cmd_execute(fe, &cmd);
1337 /* Prepare a tune request */
1338 cmd.args[0x00] = CMD_TUNEREQUEST;
1341 cmd.args[0x01] = (state->dcur.frequency & 0xff0000) >> 16;
1342 cmd.args[0x02] = (state->dcur.frequency & 0x00ff00) >> 8;
1343 cmd.args[0x03] = (state->dcur.frequency & 0x0000ff);
1346 cmd.args[0x04] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8;
1347 cmd.args[0x05] = ((state->dcur.symbol_rate / 1000) & 0x00ff);
1349 /* Automatic Inversion */
1350 cmd.args[0x06] = state->dcur.inversion_val;
1352 /* Modulation / FEC / Pilot */
1353 cmd.args[0x07] = state->dcur.fec_val | state->dcur.pilot_val;
1355 cmd.args[0x08] = CX24116_SEARCH_RANGE_KHZ >> 8;
1356 cmd.args[0x09] = CX24116_SEARCH_RANGE_KHZ & 0xff;
1357 cmd.args[0x0a] = 0x00;
1358 cmd.args[0x0b] = 0x00;
1359 cmd.args[0x0c] = state->dcur.rolloff_val;
1360 cmd.args[0x0d] = state->dcur.fec_mask;
1362 if (state->dcur.symbol_rate > 30000000) {
1363 cmd.args[0x0e] = 0x04;
1364 cmd.args[0x0f] = 0x00;
1365 cmd.args[0x10] = 0x01;
1366 cmd.args[0x11] = 0x77;
1367 cmd.args[0x12] = 0x36;
1368 cx24116_writereg(state, CX24116_REG_CLKDIV, 0x44);
1369 cx24116_writereg(state, CX24116_REG_RATEDIV, 0x01);
1371 cmd.args[0x0e] = 0x06;
1372 cmd.args[0x0f] = 0x00;
1373 cmd.args[0x10] = 0x00;
1374 cmd.args[0x11] = 0xFA;
1375 cmd.args[0x12] = 0x24;
1376 cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46);
1377 cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00);
1382 /* We need to support pilot and non-pilot tuning in the
1383 * driver automatically. This is a workaround for because
1384 * the demod does not support autodetect.
1387 /* Reset status register */
1388 status = cx24116_readreg(state, CX24116_REG_SSTATUS)
1389 & CX24116_SIGNAL_MASK;
1390 cx24116_writereg(state, CX24116_REG_SSTATUS, status);
1393 ret = cx24116_cmd_execute(fe, &cmd);
1398 * Wait for up to 500 ms before retrying
1400 * If we are able to tune then generally it occurs within 100ms.
1401 * If it takes longer, try a different toneburst setting.
1403 for (i = 0; i < 50 ; i++) {
1404 cx24116_read_status(fe, &tunerstat);
1405 status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC);
1406 if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) {
1407 dprintk("%s: Tuned\n", __func__);
1413 dprintk("%s: Not tuned\n", __func__);
1415 /* Toggle pilot bit when in auto-pilot */
1416 if (state->dcur.pilot == PILOT_AUTO)
1417 cmd.args[0x07] ^= CX24116_PILOT_ON;
1420 tuned: /* Set/Reset B/W */
1421 cmd.args[0x00] = CMD_BANDWIDTH;
1422 cmd.args[0x01] = 0x00;
1424 return cx24116_cmd_execute(fe, &cmd);
1427 static int cx24116_tune(struct dvb_frontend *fe, bool re_tune,
1428 unsigned int mode_flags, unsigned int *delay, enum fe_status *status)
1431 * It is safe to discard "params" here, as the DVB core will sync
1432 * fe->dtv_property_cache with fepriv->parameters_in, where the
1433 * DVBv3 params are stored. The only practical usage for it indicate
1434 * that re-tuning is needed, e. g. (fepriv->state & FESTATE_RETUNE) is
1440 int ret = cx24116_set_frontend(fe);
1444 return cx24116_read_status(fe, status);
1447 static enum dvbfe_algo cx24116_get_algo(struct dvb_frontend *fe)
1449 return DVBFE_ALGO_HW;
1452 static const struct dvb_frontend_ops cx24116_ops = {
1453 .delsys = { SYS_DVBS, SYS_DVBS2 },
1455 .name = "Conexant CX24116/CX24118",
1456 .frequency_min_hz = 950 * MHz,
1457 .frequency_max_hz = 2150 * MHz,
1458 .frequency_stepsize_hz = 1011 * kHz,
1459 .frequency_tolerance_hz = 5 * MHz,
1460 .symbol_rate_min = 1000000,
1461 .symbol_rate_max = 45000000,
1462 .caps = FE_CAN_INVERSION_AUTO |
1463 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1464 FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
1465 FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1466 FE_CAN_2G_MODULATION |
1467 FE_CAN_QPSK | FE_CAN_RECOVER
1470 .release = cx24116_release,
1472 .init = cx24116_initfe,
1473 .sleep = cx24116_sleep,
1474 .read_status = cx24116_read_status,
1475 .read_ber = cx24116_read_ber,
1476 .read_signal_strength = cx24116_read_signal_strength,
1477 .read_snr = cx24116_read_snr,
1478 .read_ucblocks = cx24116_read_ucblocks,
1479 .set_tone = cx24116_set_tone,
1480 .set_voltage = cx24116_set_voltage,
1481 .diseqc_send_master_cmd = cx24116_send_diseqc_msg,
1482 .diseqc_send_burst = cx24116_diseqc_send_burst,
1483 .get_frontend_algo = cx24116_get_algo,
1484 .tune = cx24116_tune,
1486 .set_frontend = cx24116_set_frontend,
1489 MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24116/cx24118 hardware");
1490 MODULE_AUTHOR("Steven Toth");
1491 MODULE_LICENSE("GPL");