1 /*
2 * cx18 functions for DVB support
3 *
4 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
5 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 *
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include "cx18-version.h"
24 #include "cx18-dvb.h"
25 #include "cx18-io.h"
26 #include "cx18-queue.h"
27 #include "cx18-streams.h"
28 #include "cx18-cards.h"
29 #include "cx18-gpio.h"
30 #include "s5h1409.h"
31 #include "mxl5005s.h"
32 #include "s5h1411.h"
33 #include "tda18271.h"
34 #include "zl10353.h"
35
36 #include <linux/firmware.h>
37 #include "mt352.h"
38 #include "mt352_priv.h"
39 #include "tuner-xc2028.h"
40
41 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
42
43 #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
44 #define CX18_CLOCK_ENABLE2 0xc71024
45 #define CX18_DMUX_CLK_MASK 0x0080
46
47 /*
48 * CX18_CARD_HVR_1600_ESMT
49 * CX18_CARD_HVR_1600_SAMSUNG
50 */
51
52 static struct mxl5005s_config hauppauge_hvr1600_tuner = {
53 .i2c_address = 0xC6 >> 1,
54 .if_freq = IF_FREQ_5380000HZ,
55 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
56 .agc_mode = MXL_SINGLE_AGC,
57 .tracking_filter = MXL_TF_C_H,
58 .rssi_enable = MXL_RSSI_ENABLE,
59 .cap_select = MXL_CAP_SEL_ENABLE,
60 .div_out = MXL_DIV_OUT_4,
61 .clock_out = MXL_CLOCK_OUT_DISABLE,
62 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
63 .top = MXL5005S_TOP_25P2,
64 .mod_mode = MXL_DIGITAL_MODE,
65 .if_mode = MXL_ZERO_IF,
66 .qam_gain = 0x02,
67 .AgcMasterByte = 0x00,
68 };
69
70 static struct s5h1409_config hauppauge_hvr1600_config = {
71 .demod_address = 0x32 >> 1,
72 .output_mode = S5H1409_SERIAL_OUTPUT,
73 .gpio = S5H1409_GPIO_ON,
74 .qam_if = 44000,
75 .inversion = S5H1409_INVERSION_OFF,
76 .status_mode = S5H1409_DEMODLOCKING,
77 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
78 .hvr1600_opt = S5H1409_HVR1600_OPTIMIZE
79 };
80
81 /*
82 * CX18_CARD_HVR_1600_S5H1411
83 */
84 static struct s5h1411_config hcw_s5h1411_config = {
85 .output_mode = S5H1411_SERIAL_OUTPUT,
86 .gpio = S5H1411_GPIO_OFF,
87 .vsb_if = S5H1411_IF_44000,
88 .qam_if = S5H1411_IF_4000,
89 .inversion = S5H1411_INVERSION_ON,
90 .status_mode = S5H1411_DEMODLOCKING,
91 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
92 };
93
94 static struct tda18271_std_map hauppauge_tda18271_std_map = {
95 .atsc_6 = { .if_freq = 5380, .agc_mode = 3, .std = 3,
96 .if_lvl = 6, .rfagc_top = 0x37 },
97 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 0,
98 .if_lvl = 6, .rfagc_top = 0x37 },
99 };
100
101 static struct tda18271_config hauppauge_tda18271_config = {
102 .std_map = &hauppauge_tda18271_std_map,
103 .gate = TDA18271_GATE_DIGITAL,
104 .output_opt = TDA18271_OUTPUT_LT_OFF,
105 };
106
107 /*
108 * CX18_CARD_LEADTEK_DVR3100H
109 */
110 /* Information/confirmation of proper config values provided by Terry Wu */
111 static struct zl10353_config leadtek_dvr3100h_demod = {
112 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
113 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
114 .parallel_ts = 1, /* Not a serial TS */
115 .no_tuner = 1, /* XC3028 is not behind the gate */
116 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
117 };
118
119 /*
120 * CX18_CARD_YUAN_MPC718
121 */
122 /*
123 * Due to
124 *
125 * 1. an absence of information on how to prgram the MT352
126 * 2. the Linux mt352 module pushing MT352 initialzation off onto us here
127 *
128 * We have to use an init sequence that *you* must extract from the Windows
129 * driver (yuanrap.sys) and which we load as a firmware.
130 *
131 * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
132 * with chip programming details, then I can remove this annoyance.
133 */
yuan_mpc718_mt352_reqfw(struct cx18_stream * stream,const struct firmware ** fw)134 static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
135 const struct firmware **fw)
136 {
137 struct cx18 *cx = stream->cx;
138 const char *fn = "dvb-cx18-mpc718-mt352.fw";
139 int ret;
140
141 ret = request_firmware(fw, fn, &cx->pci_dev->dev);
142 if (ret)
143 CX18_ERR("Unable to open firmware file %s\n", fn);
144 else {
145 size_t sz = (*fw)->size;
146 if (sz < 2 || sz > 64 || (sz % 2) != 0) {
147 CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
148 fn, (unsigned long) sz);
149 ret = -EILSEQ;
150 release_firmware(*fw);
151 *fw = NULL;
152 }
153 }
154
155 if (ret) {
156 CX18_ERR("The MPC718 board variant with the MT352 DVB-T"
157 "demodualtor will not work without it\n");
158 CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware "
159 "mpc718' if you need the firmware\n");
160 }
161 return ret;
162 }
163
yuan_mpc718_mt352_init(struct dvb_frontend * fe)164 static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
165 {
166 struct cx18_dvb *dvb = container_of(fe->dvb,
167 struct cx18_dvb, dvb_adapter);
168 struct cx18_stream *stream = dvb->stream;
169 const struct firmware *fw = NULL;
170 int ret;
171 int i;
172 u8 buf[3];
173
174 ret = yuan_mpc718_mt352_reqfw(stream, &fw);
175 if (ret)
176 return ret;
177
178 /* Loop through all the register-value pairs in the firmware file */
179 for (i = 0; i < fw->size; i += 2) {
180 buf[0] = fw->data[i];
181 /* Intercept a few registers we want to set ourselves */
182 switch (buf[0]) {
183 case TRL_NOMINAL_RATE_0:
184 /* Set our custom OFDM bandwidth in the case below */
185 break;
186 case TRL_NOMINAL_RATE_1:
187 /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
188 /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
189 /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
190 buf[1] = 0x72;
191 buf[2] = 0x49;
192 mt352_write(fe, buf, 3);
193 break;
194 case INPUT_FREQ_0:
195 /* Set our custom IF in the case below */
196 break;
197 case INPUT_FREQ_1:
198 /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
199 buf[1] = 0x31;
200 buf[2] = 0xc0;
201 mt352_write(fe, buf, 3);
202 break;
203 default:
204 /* Pass through the register-value pair from the fw */
205 buf[1] = fw->data[i+1];
206 mt352_write(fe, buf, 2);
207 break;
208 }
209 }
210
211 buf[0] = (u8) TUNER_GO;
212 buf[1] = 0x01; /* Go */
213 mt352_write(fe, buf, 2);
214 release_firmware(fw);
215 return 0;
216 }
217
218 static struct mt352_config yuan_mpc718_mt352_demod = {
219 .demod_address = 0x1e >> 1,
220 .adc_clock = 20480, /* 20.480 MHz */
221 .if2 = 4560, /* 4.560 MHz */
222 .no_tuner = 1, /* XC3028 is not behind the gate */
223 .demod_init = yuan_mpc718_mt352_init,
224 };
225
226 static struct zl10353_config yuan_mpc718_zl10353_demod = {
227 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
228 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
229 .parallel_ts = 1, /* Not a serial TS */
230 .no_tuner = 1, /* XC3028 is not behind the gate */
231 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
232 };
233
234 static struct zl10353_config gotview_dvd3_zl10353_demod = {
235 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
236 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
237 .parallel_ts = 1, /* Not a serial TS */
238 .no_tuner = 1, /* XC3028 is not behind the gate */
239 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
240 };
241
242 static int dvb_register(struct cx18_stream *stream);
243
244 /* Kernel DVB framework calls this when the feed needs to start.
245 * The CX18 framework should enable the transport DMA handling
246 * and queue processing.
247 */
cx18_dvb_start_feed(struct dvb_demux_feed * feed)248 static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
249 {
250 struct dvb_demux *demux = feed->demux;
251 struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
252 struct cx18 *cx;
253 int ret;
254 u32 v;
255
256 if (!stream)
257 return -EINVAL;
258
259 cx = stream->cx;
260 CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
261 feed->pid, feed->index);
262
263 mutex_lock(&cx->serialize_lock);
264 ret = cx18_init_on_first_open(cx);
265 mutex_unlock(&cx->serialize_lock);
266 if (ret) {
267 CX18_ERR("Failed to initialize firmware starting DVB feed\n");
268 return ret;
269 }
270 ret = -EINVAL;
271
272 switch (cx->card->type) {
273 case CX18_CARD_HVR_1600_ESMT:
274 case CX18_CARD_HVR_1600_SAMSUNG:
275 case CX18_CARD_HVR_1600_S5H1411:
276 v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
277 v |= 0x00400000; /* Serial Mode */
278 v |= 0x00002000; /* Data Length - Byte */
279 v |= 0x00010000; /* Error - Polarity */
280 v |= 0x00020000; /* Error - Passthru */
281 v |= 0x000c0000; /* Error - Ignore */
282 cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
283 break;
284
285 case CX18_CARD_LEADTEK_DVR3100H:
286 case CX18_CARD_YUAN_MPC718:
287 case CX18_CARD_GOTVIEW_PCI_DVD3:
288 default:
289 /* Assumption - Parallel transport - Signalling
290 * undefined or default.
291 */
292 break;
293 }
294
295 if (!demux->dmx.frontend)
296 return -EINVAL;
297
298 mutex_lock(&stream->dvb->feedlock);
299 if (stream->dvb->feeding++ == 0) {
300 CX18_DEBUG_INFO("Starting Transport DMA\n");
301 mutex_lock(&cx->serialize_lock);
302 set_bit(CX18_F_S_STREAMING, &stream->s_flags);
303 ret = cx18_start_v4l2_encode_stream(stream);
304 if (ret < 0) {
305 CX18_DEBUG_INFO("Failed to start Transport DMA\n");
306 stream->dvb->feeding--;
307 if (stream->dvb->feeding == 0)
308 clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
309 }
310 mutex_unlock(&cx->serialize_lock);
311 } else
312 ret = 0;
313 mutex_unlock(&stream->dvb->feedlock);
314
315 return ret;
316 }
317
318 /* Kernel DVB framework calls this when the feed needs to stop. */
cx18_dvb_stop_feed(struct dvb_demux_feed * feed)319 static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
320 {
321 struct dvb_demux *demux = feed->demux;
322 struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
323 struct cx18 *cx;
324 int ret = -EINVAL;
325
326 if (stream) {
327 cx = stream->cx;
328 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
329 feed->pid, feed->index);
330
331 mutex_lock(&stream->dvb->feedlock);
332 if (--stream->dvb->feeding == 0) {
333 CX18_DEBUG_INFO("Stopping Transport DMA\n");
334 mutex_lock(&cx->serialize_lock);
335 ret = cx18_stop_v4l2_encode_stream(stream, 0);
336 mutex_unlock(&cx->serialize_lock);
337 } else
338 ret = 0;
339 mutex_unlock(&stream->dvb->feedlock);
340 }
341
342 return ret;
343 }
344
cx18_dvb_register(struct cx18_stream * stream)345 int cx18_dvb_register(struct cx18_stream *stream)
346 {
347 struct cx18 *cx = stream->cx;
348 struct cx18_dvb *dvb = stream->dvb;
349 struct dvb_adapter *dvb_adapter;
350 struct dvb_demux *dvbdemux;
351 struct dmx_demux *dmx;
352 int ret;
353
354 if (!dvb)
355 return -EINVAL;
356
357 dvb->enabled = 0;
358 dvb->stream = stream;
359
360 ret = dvb_register_adapter(&dvb->dvb_adapter,
361 CX18_DRIVER_NAME,
362 THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
363 if (ret < 0)
364 goto err_out;
365
366 dvb_adapter = &dvb->dvb_adapter;
367
368 dvbdemux = &dvb->demux;
369
370 dvbdemux->priv = (void *)stream;
371
372 dvbdemux->filternum = 256;
373 dvbdemux->feednum = 256;
374 dvbdemux->start_feed = cx18_dvb_start_feed;
375 dvbdemux->stop_feed = cx18_dvb_stop_feed;
376 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
377 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
378 ret = dvb_dmx_init(dvbdemux);
379 if (ret < 0)
380 goto err_dvb_unregister_adapter;
381
382 dmx = &dvbdemux->dmx;
383
384 dvb->hw_frontend.source = DMX_FRONTEND_0;
385 dvb->mem_frontend.source = DMX_MEMORY_FE;
386 dvb->dmxdev.filternum = 256;
387 dvb->dmxdev.demux = dmx;
388
389 ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
390 if (ret < 0)
391 goto err_dvb_dmx_release;
392
393 ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
394 if (ret < 0)
395 goto err_dvb_dmxdev_release;
396
397 ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
398 if (ret < 0)
399 goto err_remove_hw_frontend;
400
401 ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
402 if (ret < 0)
403 goto err_remove_mem_frontend;
404
405 ret = dvb_register(stream);
406 if (ret < 0)
407 goto err_disconnect_frontend;
408
409 dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
410
411 CX18_INFO("DVB Frontend registered\n");
412 CX18_INFO("Registered DVB adapter%d for %s (%d x %d.%02d kB)\n",
413 stream->dvb->dvb_adapter.num, stream->name,
414 stream->buffers, stream->buf_size/1024,
415 (stream->buf_size * 100 / 1024) % 100);
416
417 mutex_init(&dvb->feedlock);
418 dvb->enabled = 1;
419 return ret;
420
421 err_disconnect_frontend:
422 dmx->disconnect_frontend(dmx);
423 err_remove_mem_frontend:
424 dmx->remove_frontend(dmx, &dvb->mem_frontend);
425 err_remove_hw_frontend:
426 dmx->remove_frontend(dmx, &dvb->hw_frontend);
427 err_dvb_dmxdev_release:
428 dvb_dmxdev_release(&dvb->dmxdev);
429 err_dvb_dmx_release:
430 dvb_dmx_release(dvbdemux);
431 err_dvb_unregister_adapter:
432 dvb_unregister_adapter(dvb_adapter);
433 err_out:
434 return ret;
435 }
436
cx18_dvb_unregister(struct cx18_stream * stream)437 void cx18_dvb_unregister(struct cx18_stream *stream)
438 {
439 struct cx18 *cx = stream->cx;
440 struct cx18_dvb *dvb = stream->dvb;
441 struct dvb_adapter *dvb_adapter;
442 struct dvb_demux *dvbdemux;
443 struct dmx_demux *dmx;
444
445 CX18_INFO("unregister DVB\n");
446
447 if (dvb == NULL || !dvb->enabled)
448 return;
449
450 dvb_adapter = &dvb->dvb_adapter;
451 dvbdemux = &dvb->demux;
452 dmx = &dvbdemux->dmx;
453
454 dmx->close(dmx);
455 dvb_net_release(&dvb->dvbnet);
456 dmx->remove_frontend(dmx, &dvb->mem_frontend);
457 dmx->remove_frontend(dmx, &dvb->hw_frontend);
458 dvb_dmxdev_release(&dvb->dmxdev);
459 dvb_dmx_release(dvbdemux);
460 dvb_unregister_frontend(dvb->fe);
461 dvb_frontend_detach(dvb->fe);
462 dvb_unregister_adapter(dvb_adapter);
463 }
464
465 /* All the DVB attach calls go here, this function get's modified
466 * for each new card. cx18_dvb_start_feed() will also need changes.
467 */
dvb_register(struct cx18_stream * stream)468 static int dvb_register(struct cx18_stream *stream)
469 {
470 struct cx18_dvb *dvb = stream->dvb;
471 struct cx18 *cx = stream->cx;
472 int ret = 0;
473
474 switch (cx->card->type) {
475 case CX18_CARD_HVR_1600_ESMT:
476 case CX18_CARD_HVR_1600_SAMSUNG:
477 dvb->fe = dvb_attach(s5h1409_attach,
478 &hauppauge_hvr1600_config,
479 &cx->i2c_adap[0]);
480 if (dvb->fe != NULL) {
481 dvb_attach(mxl5005s_attach, dvb->fe,
482 &cx->i2c_adap[0],
483 &hauppauge_hvr1600_tuner);
484 ret = 0;
485 }
486 break;
487 case CX18_CARD_HVR_1600_S5H1411:
488 dvb->fe = dvb_attach(s5h1411_attach,
489 &hcw_s5h1411_config,
490 &cx->i2c_adap[0]);
491 if (dvb->fe != NULL)
492 dvb_attach(tda18271_attach, dvb->fe,
493 0x60, &cx->i2c_adap[0],
494 &hauppauge_tda18271_config);
495 break;
496 case CX18_CARD_LEADTEK_DVR3100H:
497 dvb->fe = dvb_attach(zl10353_attach,
498 &leadtek_dvr3100h_demod,
499 &cx->i2c_adap[1]);
500 if (dvb->fe != NULL) {
501 struct dvb_frontend *fe;
502 struct xc2028_config cfg = {
503 .i2c_adap = &cx->i2c_adap[1],
504 .i2c_addr = 0xc2 >> 1,
505 .ctrl = NULL,
506 };
507 static struct xc2028_ctrl ctrl = {
508 .fname = XC2028_DEFAULT_FIRMWARE,
509 .max_len = 64,
510 .demod = XC3028_FE_ZARLINK456,
511 .type = XC2028_AUTO,
512 };
513
514 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
515 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
516 fe->ops.tuner_ops.set_config(fe, &ctrl);
517 }
518 break;
519 case CX18_CARD_YUAN_MPC718:
520 /*
521 * TODO
522 * Apparently, these cards also could instead have a
523 * DiBcom demod supported by one of the db7000 drivers
524 */
525 dvb->fe = dvb_attach(mt352_attach,
526 &yuan_mpc718_mt352_demod,
527 &cx->i2c_adap[1]);
528 if (dvb->fe == NULL)
529 dvb->fe = dvb_attach(zl10353_attach,
530 &yuan_mpc718_zl10353_demod,
531 &cx->i2c_adap[1]);
532 if (dvb->fe != NULL) {
533 struct dvb_frontend *fe;
534 struct xc2028_config cfg = {
535 .i2c_adap = &cx->i2c_adap[1],
536 .i2c_addr = 0xc2 >> 1,
537 .ctrl = NULL,
538 };
539 static struct xc2028_ctrl ctrl = {
540 .fname = XC2028_DEFAULT_FIRMWARE,
541 .max_len = 64,
542 .demod = XC3028_FE_ZARLINK456,
543 .type = XC2028_AUTO,
544 };
545
546 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
547 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
548 fe->ops.tuner_ops.set_config(fe, &ctrl);
549 }
550 break;
551 case CX18_CARD_GOTVIEW_PCI_DVD3:
552 dvb->fe = dvb_attach(zl10353_attach,
553 &gotview_dvd3_zl10353_demod,
554 &cx->i2c_adap[1]);
555 if (dvb->fe != NULL) {
556 struct dvb_frontend *fe;
557 struct xc2028_config cfg = {
558 .i2c_adap = &cx->i2c_adap[1],
559 .i2c_addr = 0xc2 >> 1,
560 .ctrl = NULL,
561 };
562 static struct xc2028_ctrl ctrl = {
563 .fname = XC2028_DEFAULT_FIRMWARE,
564 .max_len = 64,
565 .demod = XC3028_FE_ZARLINK456,
566 .type = XC2028_AUTO,
567 };
568
569 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
570 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
571 fe->ops.tuner_ops.set_config(fe, &ctrl);
572 }
573 break;
574 default:
575 /* No Digital Tv Support */
576 break;
577 }
578
579 if (dvb->fe == NULL) {
580 CX18_ERR("frontend initialization failed\n");
581 return -1;
582 }
583
584 dvb->fe->callback = cx18_reset_tuner_gpio;
585
586 ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
587 if (ret < 0) {
588 if (dvb->fe->ops.release)
589 dvb->fe->ops.release(dvb->fe);
590 return ret;
591 }
592
593 /*
594 * The firmware seems to enable the TS DMUX clock
595 * under various circumstances. However, since we know we
596 * might use it, let's just turn it on ourselves here.
597 */
598 cx18_write_reg_expect(cx,
599 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK,
600 CX18_CLOCK_ENABLE2,
601 CX18_DMUX_CLK_MASK,
602 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK);
603
604 return ret;
605 }
606