Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / media / dvb / frontends / stv0299.c
blob035dd7ba65194577aec5a8b52f30bfccfe14779c
1 /*
2 Driver for ST STV0299 demodulator
4 Copyright (C) 2001-2002 Convergence Integrated Media GmbH
5 <ralph@convergence.de>,
6 <holger@convergence.de>,
7 <js@convergence.de>
10 Philips SU1278/SH
12 Copyright (C) 2002 by Peter Schildmann <peter.schildmann@web.de>
15 LG TDQF-S001F
17 Copyright (C) 2002 Felix Domke <tmbinc@elitedvb.net>
18 & Andreas Oberritter <obi@linuxtv.org>
21 Support for Samsung TBMU24112IMB used on Technisat SkyStar2 rev. 2.6B
23 Copyright (C) 2003 Vadim Catana <skystar@moldova.cc>:
25 Support for Philips SU1278 on Technotrend hardware
27 Copyright (C) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
29 This program is free software; you can redistribute it and/or modify
30 it under the terms of the GNU General Public License as published by
31 the Free Software Foundation; either version 2 of the License, or
32 (at your option) any later version.
34 This program is distributed in the hope that it will be useful,
35 but WITHOUT ANY WARRANTY; without even the implied warranty of
36 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 GNU General Public License for more details.
39 You should have received a copy of the GNU General Public License
40 along with this program; if not, write to the Free Software
41 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
45 #include <linux/init.h>
46 #include <linux/kernel.h>
47 #include <linux/module.h>
48 #include <linux/string.h>
49 #include <linux/slab.h>
50 #include <linux/jiffies.h>
51 #include <asm/div64.h>
53 #include "dvb_frontend.h"
54 #include "stv0299.h"
56 struct stv0299_state {
57 struct i2c_adapter* i2c;
58 const struct stv0299_config* config;
59 struct dvb_frontend frontend;
61 u8 initialised:1;
62 u32 tuner_frequency;
63 u32 symbol_rate;
64 fe_code_rate_t fec_inner;
65 int errmode;
68 #define STATUS_BER 0
69 #define STATUS_UCBLOCKS 1
71 static int debug;
72 static int debug_legacy_dish_switch;
73 #define dprintk(args...) \
74 do { \
75 if (debug) printk(KERN_DEBUG "stv0299: " args); \
76 } while (0)
79 static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
81 int ret;
82 u8 buf [] = { reg, data };
83 struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
85 ret = i2c_transfer (state->i2c, &msg, 1);
87 if (ret != 1)
88 dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, "
89 "ret == %i)\n", __FUNCTION__, reg, data, ret);
91 return (ret != 1) ? -EREMOTEIO : 0;
94 static int stv0299_write(struct dvb_frontend* fe, u8 *buf, int len)
96 struct stv0299_state* state = fe->demodulator_priv;
98 if (len != 2)
99 return -EINVAL;
101 return stv0299_writeregI(state, buf[0], buf[1]);
104 static u8 stv0299_readreg (struct stv0299_state* state, u8 reg)
106 int ret;
107 u8 b0 [] = { reg };
108 u8 b1 [] = { 0 };
109 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
110 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
112 ret = i2c_transfer (state->i2c, msg, 2);
114 if (ret != 2)
115 dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
116 __FUNCTION__, reg, ret);
118 return b1[0];
121 static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len)
123 int ret;
124 struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
125 { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
127 ret = i2c_transfer (state->i2c, msg, 2);
129 if (ret != 2)
130 dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
132 return ret == 2 ? 0 : ret;
135 static int stv0299_set_FEC (struct stv0299_state* state, fe_code_rate_t fec)
137 dprintk ("%s\n", __FUNCTION__);
139 switch (fec) {
140 case FEC_AUTO:
142 return stv0299_writeregI (state, 0x31, 0x1f);
144 case FEC_1_2:
146 return stv0299_writeregI (state, 0x31, 0x01);
148 case FEC_2_3:
150 return stv0299_writeregI (state, 0x31, 0x02);
152 case FEC_3_4:
154 return stv0299_writeregI (state, 0x31, 0x04);
156 case FEC_5_6:
158 return stv0299_writeregI (state, 0x31, 0x08);
160 case FEC_7_8:
162 return stv0299_writeregI (state, 0x31, 0x10);
164 default:
166 return -EINVAL;
171 static fe_code_rate_t stv0299_get_fec (struct stv0299_state* state)
173 static fe_code_rate_t fec_tab [] = { FEC_2_3, FEC_3_4, FEC_5_6,
174 FEC_7_8, FEC_1_2 };
175 u8 index;
177 dprintk ("%s\n", __FUNCTION__);
179 index = stv0299_readreg (state, 0x1b);
180 index &= 0x7;
182 if (index > 4)
183 return FEC_AUTO;
185 return fec_tab [index];
188 static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout)
190 unsigned long start = jiffies;
192 dprintk ("%s\n", __FUNCTION__);
194 while (stv0299_readreg(state, 0x0a) & 1) {
195 if (jiffies - start > timeout) {
196 dprintk ("%s: timeout!!\n", __FUNCTION__);
197 return -ETIMEDOUT;
199 msleep(10);
202 return 0;
205 static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
207 unsigned long start = jiffies;
209 dprintk ("%s\n", __FUNCTION__);
211 while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) {
212 if (jiffies - start > timeout) {
213 dprintk ("%s: timeout!!\n", __FUNCTION__);
214 return -ETIMEDOUT;
216 msleep(10);
219 return 0;
222 static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
224 struct stv0299_state* state = fe->demodulator_priv;
225 u64 big = srate;
226 u32 ratio;
228 // check rate is within limits
229 if ((srate < 1000000) || (srate > 45000000)) return -EINVAL;
231 // calculate value to program
232 big = big << 20;
233 big += (state->config->mclk-1); // round correctly
234 do_div(big, state->config->mclk);
235 ratio = big << 4;
237 return state->config->set_symbol_rate(fe, srate, ratio);
240 static int stv0299_get_symbolrate (struct stv0299_state* state)
242 u32 Mclk = state->config->mclk / 4096L;
243 u32 srate;
244 s32 offset;
245 u8 sfr[3];
246 s8 rtf;
248 dprintk ("%s\n", __FUNCTION__);
250 stv0299_readregs (state, 0x1f, sfr, 3);
251 stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1);
253 srate = (sfr[0] << 8) | sfr[1];
254 srate *= Mclk;
255 srate /= 16;
256 srate += (sfr[2] >> 4) * Mclk / 256;
257 offset = (s32) rtf * (srate / 4096L);
258 offset /= 128;
260 dprintk ("%s : srate = %i\n", __FUNCTION__, srate);
261 dprintk ("%s : ofset = %i\n", __FUNCTION__, offset);
263 srate += offset;
265 srate += 1000;
266 srate /= 2000;
267 srate *= 2000;
269 return srate;
272 static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
273 struct dvb_diseqc_master_cmd *m)
275 struct stv0299_state* state = fe->demodulator_priv;
276 u8 val;
277 int i;
279 dprintk ("%s\n", __FUNCTION__);
281 if (stv0299_wait_diseqc_idle (state, 100) < 0)
282 return -ETIMEDOUT;
284 val = stv0299_readreg (state, 0x08);
286 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */
287 return -EREMOTEIO;
289 for (i=0; i<m->msg_len; i++) {
290 if (stv0299_wait_diseqc_fifo (state, 100) < 0)
291 return -ETIMEDOUT;
293 if (stv0299_writeregI (state, 0x09, m->msg[i]))
294 return -EREMOTEIO;
297 if (stv0299_wait_diseqc_idle (state, 100) < 0)
298 return -ETIMEDOUT;
300 return 0;
303 static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
305 struct stv0299_state* state = fe->demodulator_priv;
306 u8 val;
308 dprintk ("%s\n", __FUNCTION__);
310 if (stv0299_wait_diseqc_idle (state, 100) < 0)
311 return -ETIMEDOUT;
313 val = stv0299_readreg (state, 0x08);
315 if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2)) /* burst mode */
316 return -EREMOTEIO;
318 if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff))
319 return -EREMOTEIO;
321 if (stv0299_wait_diseqc_idle (state, 100) < 0)
322 return -ETIMEDOUT;
324 if (stv0299_writeregI (state, 0x08, val))
325 return -EREMOTEIO;
327 return 0;
330 static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
332 struct stv0299_state* state = fe->demodulator_priv;
333 u8 val;
335 if (stv0299_wait_diseqc_idle (state, 100) < 0)
336 return -ETIMEDOUT;
338 val = stv0299_readreg (state, 0x08);
340 switch (tone) {
341 case SEC_TONE_ON:
342 return stv0299_writeregI (state, 0x08, val | 0x3);
344 case SEC_TONE_OFF:
345 return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02);
347 default:
348 return -EINVAL;
352 static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
354 struct stv0299_state* state = fe->demodulator_priv;
355 u8 reg0x08;
356 u8 reg0x0c;
358 dprintk("%s: %s\n", __FUNCTION__,
359 voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
360 voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
362 reg0x08 = stv0299_readreg (state, 0x08);
363 reg0x0c = stv0299_readreg (state, 0x0c);
366 * H/V switching over OP0, OP1 and OP2 are LNB power enable bits
368 reg0x0c &= 0x0f;
370 if (voltage == SEC_VOLTAGE_OFF) {
371 stv0299_writeregI (state, 0x0c, 0x00); /* LNB power off! */
372 return stv0299_writeregI (state, 0x08, 0x00); /* LNB power off! */
375 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
377 switch (voltage) {
378 case SEC_VOLTAGE_13:
379 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0) reg0x0c |= 0x10;
380 else reg0x0c |= 0x40;
382 return stv0299_writeregI(state, 0x0c, reg0x0c);
384 case SEC_VOLTAGE_18:
385 return stv0299_writeregI(state, 0x0c, reg0x0c | 0x50);
386 default:
387 return -EINVAL;
391 static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd)
393 struct stv0299_state* state = fe->demodulator_priv;
394 u8 reg0x08;
395 u8 reg0x0c;
396 u8 lv_mask = 0x40;
397 u8 last = 1;
398 int i;
399 struct timeval nexttime;
400 struct timeval tv[10];
402 reg0x08 = stv0299_readreg (state, 0x08);
403 reg0x0c = stv0299_readreg (state, 0x0c);
404 reg0x0c &= 0x0f;
405 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
406 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
407 lv_mask = 0x10;
409 cmd = cmd << 1;
410 if (debug_legacy_dish_switch)
411 printk ("%s switch command: 0x%04lx\n",__FUNCTION__, cmd);
413 do_gettimeofday (&nexttime);
414 if (debug_legacy_dish_switch)
415 memcpy (&tv[0], &nexttime, sizeof (struct timeval));
416 stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
418 dvb_frontend_sleep_until(&nexttime, 32000);
420 for (i=0; i<9; i++) {
421 if (debug_legacy_dish_switch)
422 do_gettimeofday (&tv[i+1]);
423 if((cmd & 0x01) != last) {
424 /* set voltage to (last ? 13V : 18V) */
425 stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
426 last = (last) ? 0 : 1;
429 cmd = cmd >> 1;
431 if (i != 8)
432 dvb_frontend_sleep_until(&nexttime, 8000);
434 if (debug_legacy_dish_switch) {
435 printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
436 __FUNCTION__, fe->dvb->num);
437 for (i = 1; i < 10; i++)
438 printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
441 return 0;
444 static int stv0299_init (struct dvb_frontend* fe)
446 struct stv0299_state* state = fe->demodulator_priv;
447 int i;
449 dprintk("stv0299: init chip\n");
451 for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2)
452 stv0299_writeregI(state, state->config->inittab[i], state->config->inittab[i+1]);
454 return 0;
457 static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status)
459 struct stv0299_state* state = fe->demodulator_priv;
461 u8 signal = 0xff - stv0299_readreg (state, 0x18);
462 u8 sync = stv0299_readreg (state, 0x1b);
464 dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __FUNCTION__, sync);
465 *status = 0;
467 if (signal > 10)
468 *status |= FE_HAS_SIGNAL;
470 if (sync & 0x80)
471 *status |= FE_HAS_CARRIER;
473 if (sync & 0x10)
474 *status |= FE_HAS_VITERBI;
476 if (sync & 0x08)
477 *status |= FE_HAS_SYNC;
479 if ((sync & 0x98) == 0x98)
480 *status |= FE_HAS_LOCK;
482 return 0;
485 static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
487 struct stv0299_state* state = fe->demodulator_priv;
489 if (state->errmode != STATUS_BER) return 0;
490 *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
492 return 0;
495 static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
497 struct stv0299_state* state = fe->demodulator_priv;
499 s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8)
500 | stv0299_readreg (state, 0x19));
502 dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __FUNCTION__,
503 stv0299_readreg (state, 0x18),
504 stv0299_readreg (state, 0x19), (int) signal);
506 signal = signal * 5 / 4;
507 *strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
509 return 0;
512 static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
514 struct stv0299_state* state = fe->demodulator_priv;
516 s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
517 | stv0299_readreg (state, 0x25));
518 xsnr = 3 * (xsnr - 0xa100);
519 *snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
521 return 0;
524 static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
526 struct stv0299_state* state = fe->demodulator_priv;
528 if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0;
529 else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
531 return 0;
534 static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
536 struct stv0299_state* state = fe->demodulator_priv;
537 int invval = 0;
539 dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__);
541 // set the inversion
542 if (p->inversion == INVERSION_OFF) invval = 0;
543 else if (p->inversion == INVERSION_ON) invval = 1;
544 else {
545 printk("stv0299 does not support auto-inversion\n");
546 return -EINVAL;
548 if (state->config->invert) invval = (~invval) & 1;
549 stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
551 if (fe->ops.tuner_ops.set_params) {
552 fe->ops.tuner_ops.set_params(fe, p);
553 if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
556 stv0299_set_FEC (state, p->u.qpsk.fec_inner);
557 stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate);
558 stv0299_writeregI(state, 0x22, 0x00);
559 stv0299_writeregI(state, 0x23, 0x00);
561 state->tuner_frequency = p->frequency;
562 state->fec_inner = p->u.qpsk.fec_inner;
563 state->symbol_rate = p->u.qpsk.symbol_rate;
565 return 0;
568 static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
570 struct stv0299_state* state = fe->demodulator_priv;
571 s32 derot_freq;
572 int invval;
574 derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8)
575 | stv0299_readreg (state, 0x23));
577 derot_freq *= (state->config->mclk >> 16);
578 derot_freq += 500;
579 derot_freq /= 1000;
581 p->frequency += derot_freq;
583 invval = stv0299_readreg (state, 0x0c) & 1;
584 if (state->config->invert) invval = (~invval) & 1;
585 p->inversion = invval ? INVERSION_ON : INVERSION_OFF;
587 p->u.qpsk.fec_inner = stv0299_get_fec (state);
588 p->u.qpsk.symbol_rate = stv0299_get_symbolrate (state);
590 return 0;
593 static int stv0299_sleep(struct dvb_frontend* fe)
595 struct stv0299_state* state = fe->demodulator_priv;
597 stv0299_writeregI(state, 0x02, 0x80);
598 state->initialised = 0;
600 return 0;
603 static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
605 struct stv0299_state* state = fe->demodulator_priv;
607 if (enable) {
608 stv0299_writeregI(state, 0x05, 0xb5);
609 } else {
610 stv0299_writeregI(state, 0x05, 0x35);
612 udelay(1);
613 return 0;
616 static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
618 struct stv0299_state* state = fe->demodulator_priv;
620 fesettings->min_delay_ms = state->config->min_delay_ms;
621 if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) {
622 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 32000;
623 fesettings->max_drift = 5000;
624 } else {
625 fesettings->step_size = fesettings->parameters.u.qpsk.symbol_rate / 16000;
626 fesettings->max_drift = fesettings->parameters.u.qpsk.symbol_rate / 2000;
628 return 0;
631 static void stv0299_release(struct dvb_frontend* fe)
633 struct stv0299_state* state = fe->demodulator_priv;
634 kfree(state);
637 static struct dvb_frontend_ops stv0299_ops;
639 struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
640 struct i2c_adapter* i2c)
642 struct stv0299_state* state = NULL;
643 int id;
645 /* allocate memory for the internal state */
646 state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL);
647 if (state == NULL) goto error;
649 /* setup the state */
650 state->config = config;
651 state->i2c = i2c;
652 state->initialised = 0;
653 state->tuner_frequency = 0;
654 state->symbol_rate = 0;
655 state->fec_inner = 0;
656 state->errmode = STATUS_BER;
658 /* check if the demod is there */
659 stv0299_writeregI(state, 0x02, 0x34); /* standby off */
660 msleep(200);
661 id = stv0299_readreg(state, 0x00);
663 /* register 0x00 contains 0xa1 for STV0299 and STV0299B */
664 /* register 0x00 might contain 0x80 when returning from standby */
665 if (id != 0xa1 && id != 0x80) goto error;
667 /* create dvb_frontend */
668 memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops));
669 state->frontend.demodulator_priv = state;
670 return &state->frontend;
672 error:
673 kfree(state);
674 return NULL;
677 static struct dvb_frontend_ops stv0299_ops = {
679 .info = {
680 .name = "ST STV0299 DVB-S",
681 .type = FE_QPSK,
682 .frequency_min = 950000,
683 .frequency_max = 2150000,
684 .frequency_stepsize = 125, /* kHz for QPSK frontends */
685 .frequency_tolerance = 0,
686 .symbol_rate_min = 1000000,
687 .symbol_rate_max = 45000000,
688 .symbol_rate_tolerance = 500, /* ppm */
689 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
690 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
691 FE_CAN_QPSK |
692 FE_CAN_FEC_AUTO
695 .release = stv0299_release,
697 .init = stv0299_init,
698 .sleep = stv0299_sleep,
699 .write = stv0299_write,
700 .i2c_gate_ctrl = stv0299_i2c_gate_ctrl,
702 .set_frontend = stv0299_set_frontend,
703 .get_frontend = stv0299_get_frontend,
704 .get_tune_settings = stv0299_get_tune_settings,
706 .read_status = stv0299_read_status,
707 .read_ber = stv0299_read_ber,
708 .read_signal_strength = stv0299_read_signal_strength,
709 .read_snr = stv0299_read_snr,
710 .read_ucblocks = stv0299_read_ucblocks,
712 .diseqc_send_master_cmd = stv0299_send_diseqc_msg,
713 .diseqc_send_burst = stv0299_send_diseqc_burst,
714 .set_tone = stv0299_set_tone,
715 .set_voltage = stv0299_set_voltage,
716 .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
719 module_param(debug_legacy_dish_switch, int, 0444);
720 MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches");
722 module_param(debug, int, 0644);
723 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
725 MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver");
726 MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, "
727 "Andreas Oberritter, Andrew de Quincey, Kenneth Aafly");
728 MODULE_LICENSE("GPL");
730 EXPORT_SYMBOL(stv0299_attach);