2 * cx18 functions for DVB support
4 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
5 * Copyright (C) 2008 Andy Walls <awalls@radix.net>
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.
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
16 * GNU General Public License for more details.
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.
23 #include "cx18-version.h"
26 #include "cx18-queue.h"
27 #include "cx18-streams.h"
28 #include "cx18-cards.h"
29 #include "cx18-gpio.h"
34 #include <linux/firmware.h>
36 #include "mt352_priv.h"
37 #include "tuner-xc2028.h"
39 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
41 #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
42 #define CX18_CLOCK_ENABLE2 0xc71024
43 #define CX18_DMUX_CLK_MASK 0x0080
46 * CX18_CARD_HVR_1600_ESMT
47 * CX18_CARD_HVR_1600_SAMSUNG
50 static struct mxl5005s_config hauppauge_hvr1600_tuner = {
51 .i2c_address = 0xC6 >> 1,
52 .if_freq = IF_FREQ_5380000HZ,
53 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
54 .agc_mode = MXL_SINGLE_AGC,
55 .tracking_filter = MXL_TF_C_H,
56 .rssi_enable = MXL_RSSI_ENABLE,
57 .cap_select = MXL_CAP_SEL_ENABLE,
58 .div_out = MXL_DIV_OUT_4,
59 .clock_out = MXL_CLOCK_OUT_DISABLE,
60 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
61 .top = MXL5005S_TOP_25P2,
62 .mod_mode = MXL_DIGITAL_MODE,
63 .if_mode = MXL_ZERO_IF,
64 .AgcMasterByte = 0x00,
67 static struct s5h1409_config hauppauge_hvr1600_config = {
68 .demod_address = 0x32 >> 1,
69 .output_mode = S5H1409_SERIAL_OUTPUT,
70 .gpio = S5H1409_GPIO_ON,
72 .inversion = S5H1409_INVERSION_OFF,
73 .status_mode = S5H1409_DEMODLOCKING,
74 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
75 .hvr1600_opt = S5H1409_HVR1600_OPTIMIZE
79 * CX18_CARD_LEADTEK_DVR3100H
81 /* Information/confirmation of proper config values provided by Terry Wu */
82 static struct zl10353_config leadtek_dvr3100h_demod = {
83 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
84 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
85 .parallel_ts = 1, /* Not a serial TS */
86 .no_tuner = 1, /* XC3028 is not behind the gate */
87 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
91 * CX18_CARD_YUAN_MPC718
96 * 1. an absence of information on how to prgram the MT352
97 * 2. the Linux mt352 module pushing MT352 initialzation off onto us here
99 * We have to use an init sequence that *you* must extract from the Windows
100 * driver (yuanrap.sys) and which we load as a firmware.
102 * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
103 * with chip programming details, then I can remove this annoyance.
105 static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
106 const struct firmware **fw)
108 struct cx18 *cx = stream->cx;
109 const char *fn = "dvb-cx18-mpc718-mt352.fw";
112 ret = request_firmware(fw, fn, &cx->pci_dev->dev);
114 CX18_ERR("Unable to open firmware file %s\n", fn);
116 size_t sz = (*fw)->size;
117 if (sz < 2 || sz > 64 || (sz % 2) != 0) {
118 CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
119 fn, (unsigned long) sz);
121 release_firmware(*fw);
127 CX18_ERR("The MPC718 board variant with the MT352 DVB-T"
128 "demodualtor will not work without it\n");
129 CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware "
130 "mpc718' if you need the firmware\n");
135 static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
137 struct cx18_dvb *dvb = container_of(fe->dvb,
138 struct cx18_dvb, dvb_adapter);
139 struct cx18_stream *stream = container_of(dvb, struct cx18_stream, dvb);
140 const struct firmware *fw = NULL;
145 ret = yuan_mpc718_mt352_reqfw(stream, &fw);
149 /* Loop through all the register-value pairs in the firmware file */
150 for (i = 0; i < fw->size; i += 2) {
151 buf[0] = fw->data[i];
152 /* Intercept a few registers we want to set ourselves */
154 case TRL_NOMINAL_RATE_0:
155 /* Set our custom OFDM bandwidth in the case below */
157 case TRL_NOMINAL_RATE_1:
158 /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
159 /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
160 /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
163 mt352_write(fe, buf, 3);
166 /* Set our custom IF in the case below */
169 /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
172 mt352_write(fe, buf, 3);
175 /* Pass through the register-value pair from the fw */
176 buf[1] = fw->data[i+1];
177 mt352_write(fe, buf, 2);
182 buf[0] = (u8) TUNER_GO;
183 buf[1] = 0x01; /* Go */
184 mt352_write(fe, buf, 2);
185 release_firmware(fw);
189 static struct mt352_config yuan_mpc718_mt352_demod = {
190 .demod_address = 0x1e >> 1,
191 .adc_clock = 20480, /* 20.480 MHz */
192 .if2 = 4560, /* 4.560 MHz */
193 .no_tuner = 1, /* XC3028 is not behind the gate */
194 .demod_init = yuan_mpc718_mt352_init,
197 static struct zl10353_config yuan_mpc718_zl10353_demod = {
198 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */
199 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */
200 .parallel_ts = 1, /* Not a serial TS */
201 .no_tuner = 1, /* XC3028 is not behind the gate */
202 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
205 static int dvb_register(struct cx18_stream *stream);
207 /* Kernel DVB framework calls this when the feed needs to start.
208 * The CX18 framework should enable the transport DMA handling
209 * and queue processing.
211 static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
213 struct dvb_demux *demux = feed->demux;
214 struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
215 struct cx18 *cx = stream->cx;
219 CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
220 feed->pid, feed->index);
222 mutex_lock(&cx->serialize_lock);
223 ret = cx18_init_on_first_open(cx);
224 mutex_unlock(&cx->serialize_lock);
226 CX18_ERR("Failed to initialize firmware starting DVB feed\n");
231 switch (cx->card->type) {
232 case CX18_CARD_HVR_1600_ESMT:
233 case CX18_CARD_HVR_1600_SAMSUNG:
234 v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
235 v |= 0x00400000; /* Serial Mode */
236 v |= 0x00002000; /* Data Length - Byte */
237 v |= 0x00010000; /* Error - Polarity */
238 v |= 0x00020000; /* Error - Passthru */
239 v |= 0x000c0000; /* Error - Ignore */
240 cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
243 case CX18_CARD_LEADTEK_DVR3100H:
244 case CX18_CARD_YUAN_MPC718:
246 /* Assumption - Parallel transport - Signalling
247 * undefined or default.
252 if (!demux->dmx.frontend)
258 mutex_lock(&stream->dvb.feedlock);
259 if (stream->dvb.feeding++ == 0) {
260 CX18_DEBUG_INFO("Starting Transport DMA\n");
261 set_bit(CX18_F_S_STREAMING, &stream->s_flags);
262 ret = cx18_start_v4l2_encode_stream(stream);
264 CX18_DEBUG_INFO("Failed to start Transport DMA\n");
265 stream->dvb.feeding--;
266 if (stream->dvb.feeding == 0)
267 clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
271 mutex_unlock(&stream->dvb.feedlock);
276 /* Kernel DVB framework calls this when the feed needs to stop. */
277 static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
279 struct dvb_demux *demux = feed->demux;
280 struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
281 struct cx18 *cx = stream->cx;
284 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
285 feed->pid, feed->index);
288 mutex_lock(&stream->dvb.feedlock);
289 if (--stream->dvb.feeding == 0) {
290 CX18_DEBUG_INFO("Stopping Transport DMA\n");
291 ret = cx18_stop_v4l2_encode_stream(stream, 0);
294 mutex_unlock(&stream->dvb.feedlock);
300 int cx18_dvb_register(struct cx18_stream *stream)
302 struct cx18 *cx = stream->cx;
303 struct cx18_dvb *dvb = &stream->dvb;
304 struct dvb_adapter *dvb_adapter;
305 struct dvb_demux *dvbdemux;
306 struct dmx_demux *dmx;
312 ret = dvb_register_adapter(&dvb->dvb_adapter,
314 THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
318 dvb_adapter = &dvb->dvb_adapter;
320 dvbdemux = &dvb->demux;
322 dvbdemux->priv = (void *)stream;
324 dvbdemux->filternum = 256;
325 dvbdemux->feednum = 256;
326 dvbdemux->start_feed = cx18_dvb_start_feed;
327 dvbdemux->stop_feed = cx18_dvb_stop_feed;
328 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
329 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
330 ret = dvb_dmx_init(dvbdemux);
332 goto err_dvb_unregister_adapter;
334 dmx = &dvbdemux->dmx;
336 dvb->hw_frontend.source = DMX_FRONTEND_0;
337 dvb->mem_frontend.source = DMX_MEMORY_FE;
338 dvb->dmxdev.filternum = 256;
339 dvb->dmxdev.demux = dmx;
341 ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
343 goto err_dvb_dmx_release;
345 ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
347 goto err_dvb_dmxdev_release;
349 ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
351 goto err_remove_hw_frontend;
353 ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
355 goto err_remove_mem_frontend;
357 ret = dvb_register(stream);
359 goto err_disconnect_frontend;
361 dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
363 CX18_INFO("DVB Frontend registered\n");
364 CX18_INFO("Registered DVB adapter%d for %s (%d x %d kB)\n",
365 stream->dvb.dvb_adapter.num, stream->name,
366 stream->buffers, stream->buf_size/1024);
368 mutex_init(&dvb->feedlock);
372 err_disconnect_frontend:
373 dmx->disconnect_frontend(dmx);
374 err_remove_mem_frontend:
375 dmx->remove_frontend(dmx, &dvb->mem_frontend);
376 err_remove_hw_frontend:
377 dmx->remove_frontend(dmx, &dvb->hw_frontend);
378 err_dvb_dmxdev_release:
379 dvb_dmxdev_release(&dvb->dmxdev);
381 dvb_dmx_release(dvbdemux);
382 err_dvb_unregister_adapter:
383 dvb_unregister_adapter(dvb_adapter);
388 void cx18_dvb_unregister(struct cx18_stream *stream)
390 struct cx18 *cx = stream->cx;
391 struct cx18_dvb *dvb = &stream->dvb;
392 struct dvb_adapter *dvb_adapter;
393 struct dvb_demux *dvbdemux;
394 struct dmx_demux *dmx;
396 CX18_INFO("unregister DVB\n");
398 dvb_adapter = &dvb->dvb_adapter;
399 dvbdemux = &dvb->demux;
400 dmx = &dvbdemux->dmx;
403 dvb_net_release(&dvb->dvbnet);
404 dmx->remove_frontend(dmx, &dvb->mem_frontend);
405 dmx->remove_frontend(dmx, &dvb->hw_frontend);
406 dvb_dmxdev_release(&dvb->dmxdev);
407 dvb_dmx_release(dvbdemux);
408 dvb_unregister_frontend(dvb->fe);
409 dvb_frontend_detach(dvb->fe);
410 dvb_unregister_adapter(dvb_adapter);
413 /* All the DVB attach calls go here, this function get's modified
414 * for each new card. cx18_dvb_start_feed() will also need changes.
416 static int dvb_register(struct cx18_stream *stream)
418 struct cx18_dvb *dvb = &stream->dvb;
419 struct cx18 *cx = stream->cx;
422 switch (cx->card->type) {
423 case CX18_CARD_HVR_1600_ESMT:
424 case CX18_CARD_HVR_1600_SAMSUNG:
425 dvb->fe = dvb_attach(s5h1409_attach,
426 &hauppauge_hvr1600_config,
428 if (dvb->fe != NULL) {
429 dvb_attach(mxl5005s_attach, dvb->fe,
431 &hauppauge_hvr1600_tuner);
435 case CX18_CARD_LEADTEK_DVR3100H:
436 dvb->fe = dvb_attach(zl10353_attach,
437 &leadtek_dvr3100h_demod,
439 if (dvb->fe != NULL) {
440 struct dvb_frontend *fe;
441 struct xc2028_config cfg = {
442 .i2c_adap = &cx->i2c_adap[1],
443 .i2c_addr = 0xc2 >> 1,
446 static struct xc2028_ctrl ctrl = {
447 .fname = XC2028_DEFAULT_FIRMWARE,
449 .demod = XC3028_FE_ZARLINK456,
453 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
454 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
455 fe->ops.tuner_ops.set_config(fe, &ctrl);
458 case CX18_CARD_YUAN_MPC718:
461 * Apparently, these cards also could instead have a
462 * DiBcom demod supported by one of the db7000 drivers
464 dvb->fe = dvb_attach(mt352_attach,
465 &yuan_mpc718_mt352_demod,
468 dvb->fe = dvb_attach(zl10353_attach,
469 &yuan_mpc718_zl10353_demod,
471 if (dvb->fe != NULL) {
472 struct dvb_frontend *fe;
473 struct xc2028_config cfg = {
474 .i2c_adap = &cx->i2c_adap[1],
475 .i2c_addr = 0xc2 >> 1,
478 static struct xc2028_ctrl ctrl = {
479 .fname = XC2028_DEFAULT_FIRMWARE,
481 .demod = XC3028_FE_ZARLINK456,
485 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
486 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
487 fe->ops.tuner_ops.set_config(fe, &ctrl);
491 /* No Digital Tv Support */
495 if (dvb->fe == NULL) {
496 CX18_ERR("frontend initialization failed\n");
500 dvb->fe->callback = cx18_reset_tuner_gpio;
502 ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
504 if (dvb->fe->ops.release)
505 dvb->fe->ops.release(dvb->fe);
510 * The firmware seems to enable the TS DMUX clock
511 * under various circumstances. However, since we know we
512 * might use it, let's just turn it on ourselves here.
514 cx18_write_reg_expect(cx,
515 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK,
518 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK);