1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * cx18 functions for DVB support
4 *
5 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
6 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
7 */
8
9 #include "cx18-version.h"
10 #include "cx18-dvb.h"
11 #include "cx18-io.h"
12 #include "cx18-queue.h"
13 #include "cx18-streams.h"
14 #include "cx18-cards.h"
15 #include "cx18-gpio.h"
16 #include "s5h1409.h"
17 #include "mxl5005s.h"
18 #include "s5h1411.h"
19 #include "tda18271.h"
20 #include "zl10353.h"
21
22 #include <linux/firmware.h>
23 #include "mt352.h"
24 #include "mt352_priv.h"
25 #include "xc2028.h"
26
27 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
28
29 #define FWFILE "dvb-cx18-mpc718-mt352.fw"
30
31 #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
32 #define CX18_CLOCK_ENABLE2 0xc71024
33 #define CX18_DMUX_CLK_MASK 0x0080
34
35 /*
36 * CX18_CARD_HVR_1600_ESMT
37 * CX18_CARD_HVR_1600_SAMSUNG
38 */
39
40 static struct mxl5005s_config hauppauge_hvr1600_tuner = {
41 .i2c_address = 0xC6 >> 1,
42 .if_freq = IF_FREQ_5380000HZ,
43 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
44 .agc_mode = MXL_SINGLE_AGC,
45 .tracking_filter = MXL_TF_C_H,
46 .rssi_enable = MXL_RSSI_ENABLE,
47 .cap_select = MXL_CAP_SEL_ENABLE,
48 .div_out = MXL_DIV_OUT_4,
49 .clock_out = MXL_CLOCK_OUT_DISABLE,
50 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
51 .top = MXL5005S_TOP_25P2,
52 .mod_mode = MXL_DIGITAL_MODE,
53 .if_mode = MXL_ZERO_IF,
54 .qam_gain = 0x02,
55 .AgcMasterByte = 0x00,
56 };
57
58 static struct s5h1409_config hauppauge_hvr1600_config = {
59 .demod_address = 0x32 >> 1,
60 .output_mode = S5H1409_SERIAL_OUTPUT,
61 .gpio = S5H1409_GPIO_ON,
62 .qam_if = 44000,
63 .inversion = S5H1409_INVERSION_OFF,
64 .status_mode = S5H1409_DEMODLOCKING,
65 .mpeg_timing = S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
66 .hvr1600_opt = S5H1409_HVR1600_OPTIMIZE
67 };
68
69 /*
70 * CX18_CARD_HVR_1600_S5H1411
71 */
72 static struct s5h1411_config hcw_s5h1411_config = {
73 .output_mode = S5H1411_SERIAL_OUTPUT,
74 .gpio = S5H1411_GPIO_OFF,
75 .vsb_if = S5H1411_IF_44000,
76 .qam_if = S5H1411_IF_4000,
77 .inversion = S5H1411_INVERSION_ON,
78 .status_mode = S5H1411_DEMODLOCKING,
79 .mpeg_timing = S5H1411_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
80 };
81
82 static struct tda18271_std_map hauppauge_tda18271_std_map = {
83 .atsc_6 = { .if_freq = 5380, .agc_mode = 3, .std = 3,
84 .if_lvl = 6, .rfagc_top = 0x37 },
85 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 0,
86 .if_lvl = 6, .rfagc_top = 0x37 },
87 };
88
89 static struct tda18271_config hauppauge_tda18271_config = {
90 .std_map = &hauppauge_tda18271_std_map,
91 .gate = TDA18271_GATE_DIGITAL,
92 .output_opt = TDA18271_OUTPUT_LT_OFF,
93 };
94
95 /*
96 * CX18_CARD_LEADTEK_DVR3100H
97 */
98 /* Information/confirmation of proper config values provided by Terry Wu */
99 static struct zl10353_config leadtek_dvr3100h_demod = {
100 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
101 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
102 .parallel_ts = 1, /* Not a serial TS */
103 .no_tuner = 1, /* XC3028 is not behind the gate */
104 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
105 };
106
107 /*
108 * CX18_CARD_YUAN_MPC718
109 */
110 /*
111 * Due to
112 *
113 * 1. an absence of information on how to program the MT352
114 * 2. the Linux mt352 module pushing MT352 initialization off onto us here
115 *
116 * We have to use an init sequence that *you* must extract from the Windows
117 * driver (yuanrap.sys) and which we load as a firmware.
118 *
119 * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
120 * with chip programming details, then I can remove this annoyance.
121 */
yuan_mpc718_mt352_reqfw(struct cx18_stream * stream,const struct firmware ** fw)122 static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
123 const struct firmware **fw)
124 {
125 struct cx18 *cx = stream->cx;
126 const char *fn = FWFILE;
127 int ret;
128
129 ret = request_firmware(fw, fn, &cx->pci_dev->dev);
130 if (ret)
131 CX18_ERR("Unable to open firmware file %s\n", fn);
132 else {
133 size_t sz = (*fw)->size;
134 if (sz < 2 || sz > 64 || (sz % 2) != 0) {
135 CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
136 fn, (unsigned long) sz);
137 ret = -EILSEQ;
138 release_firmware(*fw);
139 *fw = NULL;
140 }
141 }
142
143 if (ret) {
144 CX18_ERR("The MPC718 board variant with the MT352 DVB-T demodulator will not work without it\n");
145 CX18_ERR("Run 'linux/scripts/get_dvb_firmware mpc718' if you need the firmware\n");
146 }
147 return ret;
148 }
149
yuan_mpc718_mt352_init(struct dvb_frontend * fe)150 static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
151 {
152 struct cx18_dvb *dvb = container_of(fe->dvb,
153 struct cx18_dvb, dvb_adapter);
154 struct cx18_stream *stream = dvb->stream;
155 const struct firmware *fw = NULL;
156 int ret;
157 int i;
158 u8 buf[3];
159
160 ret = yuan_mpc718_mt352_reqfw(stream, &fw);
161 if (ret)
162 return ret;
163
164 /* Loop through all the register-value pairs in the firmware file */
165 for (i = 0; i < fw->size; i += 2) {
166 buf[0] = fw->data[i];
167 /* Intercept a few registers we want to set ourselves */
168 switch (buf[0]) {
169 case TRL_NOMINAL_RATE_0:
170 /* Set our custom OFDM bandwidth in the case below */
171 break;
172 case TRL_NOMINAL_RATE_1:
173 /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
174 /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
175 /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
176 buf[1] = 0x72;
177 buf[2] = 0x49;
178 mt352_write(fe, buf, 3);
179 break;
180 case INPUT_FREQ_0:
181 /* Set our custom IF in the case below */
182 break;
183 case INPUT_FREQ_1:
184 /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
185 buf[1] = 0x31;
186 buf[2] = 0xc0;
187 mt352_write(fe, buf, 3);
188 break;
189 default:
190 /* Pass through the register-value pair from the fw */
191 buf[1] = fw->data[i+1];
192 mt352_write(fe, buf, 2);
193 break;
194 }
195 }
196
197 buf[0] = (u8) TUNER_GO;
198 buf[1] = 0x01; /* Go */
199 mt352_write(fe, buf, 2);
200 release_firmware(fw);
201 return 0;
202 }
203
204 static struct mt352_config yuan_mpc718_mt352_demod = {
205 .demod_address = 0x1e >> 1,
206 .adc_clock = 20480, /* 20.480 MHz */
207 .if2 = 4560, /* 4.560 MHz */
208 .no_tuner = 1, /* XC3028 is not behind the gate */
209 .demod_init = yuan_mpc718_mt352_init,
210 };
211
212 static struct zl10353_config yuan_mpc718_zl10353_demod = {
213 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
214 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
215 .parallel_ts = 1, /* Not a serial TS */
216 .no_tuner = 1, /* XC3028 is not behind the gate */
217 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
218 };
219
220 static struct zl10353_config gotview_dvd3_zl10353_demod = {
221 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
222 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
223 .parallel_ts = 1, /* Not a serial TS */
224 .no_tuner = 1, /* XC3028 is not behind the gate */
225 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
226 };
227
228 static int dvb_register(struct cx18_stream *stream);
229
230 /* Kernel DVB framework calls this when the feed needs to start.
231 * The CX18 framework should enable the transport DMA handling
232 * and queue processing.
233 */
cx18_dvb_start_feed(struct dvb_demux_feed * feed)234 static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
235 {
236 struct dvb_demux *demux = feed->demux;
237 struct cx18_stream *stream = demux->priv;
238 struct cx18 *cx;
239 int ret;
240 u32 v;
241
242 if (!stream)
243 return -EINVAL;
244
245 cx = stream->cx;
246 CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
247 feed->pid, feed->index);
248
249 mutex_lock(&cx->serialize_lock);
250 ret = cx18_init_on_first_open(cx);
251 mutex_unlock(&cx->serialize_lock);
252 if (ret) {
253 CX18_ERR("Failed to initialize firmware starting DVB feed\n");
254 return ret;
255 }
256 ret = -EINVAL;
257
258 switch (cx->card->type) {
259 case CX18_CARD_HVR_1600_ESMT:
260 case CX18_CARD_HVR_1600_SAMSUNG:
261 case CX18_CARD_HVR_1600_S5H1411:
262 v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
263 v |= 0x00400000; /* Serial Mode */
264 v |= 0x00002000; /* Data Length - Byte */
265 v |= 0x00010000; /* Error - Polarity */
266 v |= 0x00020000; /* Error - Passthru */
267 v |= 0x000c0000; /* Error - Ignore */
268 cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
269 break;
270
271 case CX18_CARD_LEADTEK_DVR3100H:
272 case CX18_CARD_YUAN_MPC718:
273 case CX18_CARD_GOTVIEW_PCI_DVD3:
274 default:
275 /* Assumption - Parallel transport - Signalling
276 * undefined or default.
277 */
278 break;
279 }
280
281 if (!demux->dmx.frontend)
282 return -EINVAL;
283
284 mutex_lock(&stream->dvb->feedlock);
285 if (stream->dvb->feeding++ == 0) {
286 CX18_DEBUG_INFO("Starting Transport DMA\n");
287 mutex_lock(&cx->serialize_lock);
288 set_bit(CX18_F_S_STREAMING, &stream->s_flags);
289 ret = cx18_start_v4l2_encode_stream(stream);
290 if (ret < 0) {
291 CX18_DEBUG_INFO("Failed to start Transport DMA\n");
292 stream->dvb->feeding--;
293 if (stream->dvb->feeding == 0)
294 clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
295 }
296 mutex_unlock(&cx->serialize_lock);
297 } else
298 ret = 0;
299 mutex_unlock(&stream->dvb->feedlock);
300
301 return ret;
302 }
303
304 /* Kernel DVB framework calls this when the feed needs to stop. */
cx18_dvb_stop_feed(struct dvb_demux_feed * feed)305 static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
306 {
307 struct dvb_demux *demux = feed->demux;
308 struct cx18_stream *stream = demux->priv;
309 struct cx18 *cx;
310 int ret = -EINVAL;
311
312 if (stream) {
313 cx = stream->cx;
314 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
315 feed->pid, feed->index);
316
317 mutex_lock(&stream->dvb->feedlock);
318 if (--stream->dvb->feeding == 0) {
319 CX18_DEBUG_INFO("Stopping Transport DMA\n");
320 mutex_lock(&cx->serialize_lock);
321 ret = cx18_stop_v4l2_encode_stream(stream, 0);
322 mutex_unlock(&cx->serialize_lock);
323 } else
324 ret = 0;
325 mutex_unlock(&stream->dvb->feedlock);
326 }
327
328 return ret;
329 }
330
cx18_dvb_register(struct cx18_stream * stream)331 int cx18_dvb_register(struct cx18_stream *stream)
332 {
333 struct cx18 *cx = stream->cx;
334 struct cx18_dvb *dvb = stream->dvb;
335 struct dvb_adapter *dvb_adapter;
336 struct dvb_demux *dvbdemux;
337 struct dmx_demux *dmx;
338 int ret;
339
340 if (!dvb)
341 return -EINVAL;
342
343 dvb->enabled = 0;
344 dvb->stream = stream;
345
346 ret = dvb_register_adapter(&dvb->dvb_adapter,
347 CX18_DRIVER_NAME,
348 THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
349 if (ret < 0)
350 goto err_out;
351
352 dvb_adapter = &dvb->dvb_adapter;
353
354 dvbdemux = &dvb->demux;
355
356 dvbdemux->priv = (void *)stream;
357
358 dvbdemux->filternum = 256;
359 dvbdemux->feednum = 256;
360 dvbdemux->start_feed = cx18_dvb_start_feed;
361 dvbdemux->stop_feed = cx18_dvb_stop_feed;
362 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
363 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
364 ret = dvb_dmx_init(dvbdemux);
365 if (ret < 0)
366 goto err_dvb_unregister_adapter;
367
368 dmx = &dvbdemux->dmx;
369
370 dvb->hw_frontend.source = DMX_FRONTEND_0;
371 dvb->mem_frontend.source = DMX_MEMORY_FE;
372 dvb->dmxdev.filternum = 256;
373 dvb->dmxdev.demux = dmx;
374
375 ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
376 if (ret < 0)
377 goto err_dvb_dmx_release;
378
379 ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
380 if (ret < 0)
381 goto err_dvb_dmxdev_release;
382
383 ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
384 if (ret < 0)
385 goto err_remove_hw_frontend;
386
387 ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
388 if (ret < 0)
389 goto err_remove_mem_frontend;
390
391 ret = dvb_register(stream);
392 if (ret < 0)
393 goto err_disconnect_frontend;
394
395 dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
396
397 CX18_INFO("DVB Frontend registered\n");
398 CX18_INFO("Registered DVB adapter%d for %s (%d x %d.%02d kB)\n",
399 stream->dvb->dvb_adapter.num, stream->name,
400 stream->buffers, stream->buf_size/1024,
401 (stream->buf_size * 100 / 1024) % 100);
402
403 mutex_init(&dvb->feedlock);
404 dvb->enabled = 1;
405 return ret;
406
407 err_disconnect_frontend:
408 dmx->disconnect_frontend(dmx);
409 err_remove_mem_frontend:
410 dmx->remove_frontend(dmx, &dvb->mem_frontend);
411 err_remove_hw_frontend:
412 dmx->remove_frontend(dmx, &dvb->hw_frontend);
413 err_dvb_dmxdev_release:
414 dvb_dmxdev_release(&dvb->dmxdev);
415 err_dvb_dmx_release:
416 dvb_dmx_release(dvbdemux);
417 err_dvb_unregister_adapter:
418 dvb_unregister_adapter(dvb_adapter);
419 err_out:
420 return ret;
421 }
422
cx18_dvb_unregister(struct cx18_stream * stream)423 void cx18_dvb_unregister(struct cx18_stream *stream)
424 {
425 struct cx18 *cx = stream->cx;
426 struct cx18_dvb *dvb = stream->dvb;
427 struct dvb_adapter *dvb_adapter;
428 struct dvb_demux *dvbdemux;
429 struct dmx_demux *dmx;
430
431 CX18_INFO("unregister DVB\n");
432
433 if (dvb == NULL || !dvb->enabled)
434 return;
435
436 dvb_adapter = &dvb->dvb_adapter;
437 dvbdemux = &dvb->demux;
438 dmx = &dvbdemux->dmx;
439
440 dmx->close(dmx);
441 dvb_net_release(&dvb->dvbnet);
442 dmx->remove_frontend(dmx, &dvb->mem_frontend);
443 dmx->remove_frontend(dmx, &dvb->hw_frontend);
444 dvb_dmxdev_release(&dvb->dmxdev);
445 dvb_dmx_release(dvbdemux);
446 dvb_unregister_frontend(dvb->fe);
447 dvb_frontend_detach(dvb->fe);
448 dvb_unregister_adapter(dvb_adapter);
449 }
450
451 /* All the DVB attach calls go here, this function gets modified
452 * for each new card. cx18_dvb_start_feed() will also need changes.
453 */
dvb_register(struct cx18_stream * stream)454 static int dvb_register(struct cx18_stream *stream)
455 {
456 struct cx18_dvb *dvb = stream->dvb;
457 struct cx18 *cx = stream->cx;
458 int ret = 0;
459
460 switch (cx->card->type) {
461 case CX18_CARD_HVR_1600_ESMT:
462 case CX18_CARD_HVR_1600_SAMSUNG:
463 dvb->fe = dvb_attach(s5h1409_attach,
464 &hauppauge_hvr1600_config,
465 &cx->i2c_adap[0]);
466 if (dvb->fe != NULL) {
467 dvb_attach(mxl5005s_attach, dvb->fe,
468 &cx->i2c_adap[0],
469 &hauppauge_hvr1600_tuner);
470 ret = 0;
471 }
472 break;
473 case CX18_CARD_HVR_1600_S5H1411:
474 dvb->fe = dvb_attach(s5h1411_attach,
475 &hcw_s5h1411_config,
476 &cx->i2c_adap[0]);
477 if (dvb->fe != NULL)
478 dvb_attach(tda18271_attach, dvb->fe,
479 0x60, &cx->i2c_adap[0],
480 &hauppauge_tda18271_config);
481 break;
482 case CX18_CARD_LEADTEK_DVR3100H:
483 dvb->fe = dvb_attach(zl10353_attach,
484 &leadtek_dvr3100h_demod,
485 &cx->i2c_adap[1]);
486 if (dvb->fe != NULL) {
487 struct dvb_frontend *fe;
488 struct xc2028_config cfg = {
489 .i2c_adap = &cx->i2c_adap[1],
490 .i2c_addr = 0xc2 >> 1,
491 .ctrl = NULL,
492 };
493 static struct xc2028_ctrl ctrl = {
494 .fname = XC2028_DEFAULT_FIRMWARE,
495 .max_len = 64,
496 .demod = XC3028_FE_ZARLINK456,
497 .type = XC2028_AUTO,
498 };
499
500 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
501 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
502 fe->ops.tuner_ops.set_config(fe, &ctrl);
503 }
504 break;
505 case CX18_CARD_YUAN_MPC718:
506 /*
507 * TODO
508 * Apparently, these cards also could instead have a
509 * DiBcom demod supported by one of the db7000 drivers
510 */
511 dvb->fe = dvb_attach(mt352_attach,
512 &yuan_mpc718_mt352_demod,
513 &cx->i2c_adap[1]);
514 if (dvb->fe == NULL)
515 dvb->fe = dvb_attach(zl10353_attach,
516 &yuan_mpc718_zl10353_demod,
517 &cx->i2c_adap[1]);
518 if (dvb->fe != NULL) {
519 struct dvb_frontend *fe;
520 struct xc2028_config cfg = {
521 .i2c_adap = &cx->i2c_adap[1],
522 .i2c_addr = 0xc2 >> 1,
523 .ctrl = NULL,
524 };
525 static struct xc2028_ctrl ctrl = {
526 .fname = XC2028_DEFAULT_FIRMWARE,
527 .max_len = 64,
528 .demod = XC3028_FE_ZARLINK456,
529 .type = XC2028_AUTO,
530 };
531
532 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
533 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
534 fe->ops.tuner_ops.set_config(fe, &ctrl);
535 }
536 break;
537 case CX18_CARD_GOTVIEW_PCI_DVD3:
538 dvb->fe = dvb_attach(zl10353_attach,
539 &gotview_dvd3_zl10353_demod,
540 &cx->i2c_adap[1]);
541 if (dvb->fe != NULL) {
542 struct dvb_frontend *fe;
543 struct xc2028_config cfg = {
544 .i2c_adap = &cx->i2c_adap[1],
545 .i2c_addr = 0xc2 >> 1,
546 .ctrl = NULL,
547 };
548 static struct xc2028_ctrl ctrl = {
549 .fname = XC2028_DEFAULT_FIRMWARE,
550 .max_len = 64,
551 .demod = XC3028_FE_ZARLINK456,
552 .type = XC2028_AUTO,
553 };
554
555 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
556 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
557 fe->ops.tuner_ops.set_config(fe, &ctrl);
558 }
559 break;
560 default:
561 /* No Digital Tv Support */
562 break;
563 }
564
565 if (dvb->fe == NULL) {
566 CX18_ERR("frontend initialization failed\n");
567 return -1;
568 }
569
570 dvb->fe->callback = cx18_reset_tuner_gpio;
571
572 ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
573 if (ret < 0) {
574 if (dvb->fe->ops.release)
575 dvb->fe->ops.release(dvb->fe);
576 return ret;
577 }
578
579 /*
580 * The firmware seems to enable the TS DMUX clock
581 * under various circumstances. However, since we know we
582 * might use it, let's just turn it on ourselves here.
583 */
584 cx18_write_reg_expect(cx,
585 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK,
586 CX18_CLOCK_ENABLE2,
587 CX18_DMUX_CLK_MASK,
588 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK);
589
590 return ret;
591 }
592
593 MODULE_FIRMWARE(FWFILE);
594