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 "zl10353.h" 33 34#include <linux/firmware.h> 35#include "mt352.h" 36#include "mt352_priv.h" 37#include "tuner-xc2028.h" 38 39DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 40 41#define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000 42#define CX18_CLOCK_ENABLE2 0xc71024 43#define CX18_DMUX_CLK_MASK 0x0080 44 45/* 46 * CX18_CARD_HVR_1600_ESMT 47 * CX18_CARD_HVR_1600_SAMSUNG 48 */ 49 50static 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 .qam_gain = 0x02, 65 .AgcMasterByte = 0x00, 66}; 67 68static struct s5h1409_config hauppauge_hvr1600_config = { 69 .demod_address = 0x32 >> 1, 70 .output_mode = S5H1409_SERIAL_OUTPUT, 71 .gpio = S5H1409_GPIO_ON, 72 .qam_if = 44000, 73 .inversion = S5H1409_INVERSION_OFF, 74 .status_mode = S5H1409_DEMODLOCKING, 75 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, 76 .hvr1600_opt = S5H1409_HVR1600_OPTIMIZE 77}; 78 79/* 80 * CX18_CARD_LEADTEK_DVR3100H 81 */ 82/* Information/confirmation of proper config values provided by Terry Wu */ 83static struct zl10353_config leadtek_dvr3100h_demod = { 84 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */ 85 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */ 86 .parallel_ts = 1, /* Not a serial TS */ 87 .no_tuner = 1, /* XC3028 is not behind the gate */ 88 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */ 89}; 90 91/* 92 * CX18_CARD_YUAN_MPC718 93 */ 94/* 95 * Due to 96 * 97 * 1. an absence of information on how to prgram the MT352 98 * 2. the Linux mt352 module pushing MT352 initialzation off onto us here 99 * 100 * We have to use an init sequence that *you* must extract from the Windows 101 * driver (yuanrap.sys) and which we load as a firmware. 102 * 103 * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual 104 * with chip programming details, then I can remove this annoyance. 105 */ 106static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream, 107 const struct firmware **fw) 108{ 109 struct cx18 *cx = stream->cx; 110 const char *fn = "dvb-cx18-mpc718-mt352.fw"; 111 int ret; 112 113 ret = request_firmware(fw, fn, &cx->pci_dev->dev); 114 if (ret) 115 CX18_ERR("Unable to open firmware file %s\n", fn); 116 else { 117 size_t sz = (*fw)->size; 118 if (sz < 2 || sz > 64 || (sz % 2) != 0) { 119 CX18_ERR("Firmware %s has a bad size: %lu bytes\n", 120 fn, (unsigned long) sz); 121 ret = -EILSEQ; 122 release_firmware(*fw); 123 *fw = NULL; 124 } 125 } 126 127 if (ret) { 128 CX18_ERR("The MPC718 board variant with the MT352 DVB-T" 129 "demodualtor will not work without it\n"); 130 CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware " 131 "mpc718' if you need the firmware\n"); 132 } 133 return ret; 134} 135 136static int yuan_mpc718_mt352_init(struct dvb_frontend *fe) 137{ 138 struct cx18_dvb *dvb = container_of(fe->dvb, 139 struct cx18_dvb, dvb_adapter); 140 struct cx18_stream *stream = container_of(dvb, struct cx18_stream, dvb); 141 const struct firmware *fw = NULL; 142 int ret; 143 int i; 144 u8 buf[3]; 145 146 ret = yuan_mpc718_mt352_reqfw(stream, &fw); 147 if (ret) 148 return ret; 149 150 /* Loop through all the register-value pairs in the firmware file */ 151 for (i = 0; i < fw->size; i += 2) { 152 buf[0] = fw->data[i]; 153 /* Intercept a few registers we want to set ourselves */ 154 switch (buf[0]) { 155 case TRL_NOMINAL_RATE_0: 156 /* Set our custom OFDM bandwidth in the case below */ 157 break; 158 case TRL_NOMINAL_RATE_1: 159 /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */ 160 /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */ 161 /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */ 162 buf[1] = 0x72; 163 buf[2] = 0x49; 164 mt352_write(fe, buf, 3); 165 break; 166 case INPUT_FREQ_0: 167 /* Set our custom IF in the case below */ 168 break; 169 case INPUT_FREQ_1: 170 /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */ 171 buf[1] = 0x31; 172 buf[2] = 0xc0; 173 mt352_write(fe, buf, 3); 174 break; 175 default: 176 /* Pass through the register-value pair from the fw */ 177 buf[1] = fw->data[i+1]; 178 mt352_write(fe, buf, 2); 179 break; 180 } 181 } 182 183 buf[0] = (u8) TUNER_GO; 184 buf[1] = 0x01; /* Go */ 185 mt352_write(fe, buf, 2); 186 release_firmware(fw); 187 return 0; 188} 189 190static struct mt352_config yuan_mpc718_mt352_demod = { 191 .demod_address = 0x1e >> 1, 192 .adc_clock = 20480, /* 20.480 MHz */ 193 .if2 = 4560, /* 4.560 MHz */ 194 .no_tuner = 1, /* XC3028 is not behind the gate */ 195 .demod_init = yuan_mpc718_mt352_init, 196}; 197 198static struct zl10353_config yuan_mpc718_zl10353_demod = { 199 .demod_address = 0x1e >> 1, /* Datasheet suggested straps */ 200 .if2 = 45600, /* 4.560 MHz IF from the XC3028 */ 201 .parallel_ts = 1, /* Not a serial TS */ 202 .no_tuner = 1, /* XC3028 is not behind the gate */ 203 .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */ 204}; 205 206static int dvb_register(struct cx18_stream *stream); 207 208/* Kernel DVB framework calls this when the feed needs to start. 209 * The CX18 framework should enable the transport DMA handling 210 * and queue processing. 211 */ 212static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) 213{ 214 struct dvb_demux *demux = feed->demux; 215 struct cx18_stream *stream = (struct cx18_stream *) demux->priv; 216 struct cx18 *cx; 217 int ret; 218 u32 v; 219 220 if (!stream) 221 return -EINVAL; 222 223 cx = stream->cx; 224 CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n", 225 feed->pid, feed->index); 226 227 mutex_lock(&cx->serialize_lock); 228 ret = cx18_init_on_first_open(cx); 229 mutex_unlock(&cx->serialize_lock); 230 if (ret) { 231 CX18_ERR("Failed to initialize firmware starting DVB feed\n"); 232 return ret; 233 } 234 ret = -EINVAL; 235 236 switch (cx->card->type) { 237 case CX18_CARD_HVR_1600_ESMT: 238 case CX18_CARD_HVR_1600_SAMSUNG: 239 v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL); 240 v |= 0x00400000; /* Serial Mode */ 241 v |= 0x00002000; /* Data Length - Byte */ 242 v |= 0x00010000; /* Error - Polarity */ 243 v |= 0x00020000; /* Error - Passthru */ 244 v |= 0x000c0000; /* Error - Ignore */ 245 cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL); 246 break; 247 248 case CX18_CARD_LEADTEK_DVR3100H: 249 case CX18_CARD_YUAN_MPC718: 250 default: 251 /* Assumption - Parallel transport - Signalling 252 * undefined or default. 253 */ 254 break; 255 } 256 257 if (!demux->dmx.frontend) 258 return -EINVAL; 259 260 mutex_lock(&stream->dvb.feedlock); 261 if (stream->dvb.feeding++ == 0) { 262 CX18_DEBUG_INFO("Starting Transport DMA\n"); 263 mutex_lock(&cx->serialize_lock); 264 set_bit(CX18_F_S_STREAMING, &stream->s_flags); 265 ret = cx18_start_v4l2_encode_stream(stream); 266 if (ret < 0) { 267 CX18_DEBUG_INFO("Failed to start Transport DMA\n"); 268 stream->dvb.feeding--; 269 if (stream->dvb.feeding == 0) 270 clear_bit(CX18_F_S_STREAMING, &stream->s_flags); 271 } 272 mutex_unlock(&cx->serialize_lock); 273 } else 274 ret = 0; 275 mutex_unlock(&stream->dvb.feedlock); 276 277 return ret; 278} 279 280/* Kernel DVB framework calls this when the feed needs to stop. */ 281static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed) 282{ 283 struct dvb_demux *demux = feed->demux; 284 struct cx18_stream *stream = (struct cx18_stream *)demux->priv; 285 struct cx18 *cx; 286 int ret = -EINVAL; 287 288 if (stream) { 289 cx = stream->cx; 290 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n", 291 feed->pid, feed->index); 292 293 mutex_lock(&stream->dvb.feedlock); 294 if (--stream->dvb.feeding == 0) { 295 CX18_DEBUG_INFO("Stopping Transport DMA\n"); 296 mutex_lock(&cx->serialize_lock); 297 ret = cx18_stop_v4l2_encode_stream(stream, 0); 298 mutex_unlock(&cx->serialize_lock); 299 } else 300 ret = 0; 301 mutex_unlock(&stream->dvb.feedlock); 302 } 303 304 return ret; 305} 306 307int cx18_dvb_register(struct cx18_stream *stream) 308{ 309 struct cx18 *cx = stream->cx; 310 struct cx18_dvb *dvb = &stream->dvb; 311 struct dvb_adapter *dvb_adapter; 312 struct dvb_demux *dvbdemux; 313 struct dmx_demux *dmx; 314 int ret; 315 316 if (!dvb) 317 return -EINVAL; 318 319 ret = dvb_register_adapter(&dvb->dvb_adapter, 320 CX18_DRIVER_NAME, 321 THIS_MODULE, &cx->pci_dev->dev, adapter_nr); 322 if (ret < 0) 323 goto err_out; 324 325 dvb_adapter = &dvb->dvb_adapter; 326 327 dvbdemux = &dvb->demux; 328 329 dvbdemux->priv = (void *)stream; 330 331 dvbdemux->filternum = 256; 332 dvbdemux->feednum = 256; 333 dvbdemux->start_feed = cx18_dvb_start_feed; 334 dvbdemux->stop_feed = cx18_dvb_stop_feed; 335 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | 336 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING); 337 ret = dvb_dmx_init(dvbdemux); 338 if (ret < 0) 339 goto err_dvb_unregister_adapter; 340 341 dmx = &dvbdemux->dmx; 342 343 dvb->hw_frontend.source = DMX_FRONTEND_0; 344 dvb->mem_frontend.source = DMX_MEMORY_FE; 345 dvb->dmxdev.filternum = 256; 346 dvb->dmxdev.demux = dmx; 347 348 ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter); 349 if (ret < 0) 350 goto err_dvb_dmx_release; 351 352 ret = dmx->add_frontend(dmx, &dvb->hw_frontend); 353 if (ret < 0) 354 goto err_dvb_dmxdev_release; 355 356 ret = dmx->add_frontend(dmx, &dvb->mem_frontend); 357 if (ret < 0) 358 goto err_remove_hw_frontend; 359 360 ret = dmx->connect_frontend(dmx, &dvb->hw_frontend); 361 if (ret < 0) 362 goto err_remove_mem_frontend; 363 364 ret = dvb_register(stream); 365 if (ret < 0) 366 goto err_disconnect_frontend; 367 368 dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx); 369 370 CX18_INFO("DVB Frontend registered\n"); 371 CX18_INFO("Registered DVB adapter%d for %s (%d x %d.%02d kB)\n", 372 stream->dvb.dvb_adapter.num, stream->name, 373 stream->buffers, stream->buf_size/1024, 374 (stream->buf_size * 100 / 1024) % 100); 375 376 mutex_init(&dvb->feedlock); 377 dvb->enabled = 1; 378 return ret; 379 380err_disconnect_frontend: 381 dmx->disconnect_frontend(dmx); 382err_remove_mem_frontend: 383 dmx->remove_frontend(dmx, &dvb->mem_frontend); 384err_remove_hw_frontend: 385 dmx->remove_frontend(dmx, &dvb->hw_frontend); 386err_dvb_dmxdev_release: 387 dvb_dmxdev_release(&dvb->dmxdev); 388err_dvb_dmx_release: 389 dvb_dmx_release(dvbdemux); 390err_dvb_unregister_adapter: 391 dvb_unregister_adapter(dvb_adapter); 392err_out: 393 return ret; 394} 395 396void cx18_dvb_unregister(struct cx18_stream *stream) 397{ 398 struct cx18 *cx = stream->cx; 399 struct cx18_dvb *dvb = &stream->dvb; 400 struct dvb_adapter *dvb_adapter; 401 struct dvb_demux *dvbdemux; 402 struct dmx_demux *dmx; 403 404 CX18_INFO("unregister DVB\n"); 405 406 dvb_adapter = &dvb->dvb_adapter; 407 dvbdemux = &dvb->demux; 408 dmx = &dvbdemux->dmx; 409 410 dmx->close(dmx); 411 dvb_net_release(&dvb->dvbnet); 412 dmx->remove_frontend(dmx, &dvb->mem_frontend); 413 dmx->remove_frontend(dmx, &dvb->hw_frontend); 414 dvb_dmxdev_release(&dvb->dmxdev); 415 dvb_dmx_release(dvbdemux); 416 dvb_unregister_frontend(dvb->fe); 417 dvb_frontend_detach(dvb->fe); 418 dvb_unregister_adapter(dvb_adapter); 419} 420 421/* All the DVB attach calls go here, this function get's modified 422 * for each new card. cx18_dvb_start_feed() will also need changes. 423 */ 424static int dvb_register(struct cx18_stream *stream) 425{ 426 struct cx18_dvb *dvb = &stream->dvb; 427 struct cx18 *cx = stream->cx; 428 int ret = 0; 429 430 switch (cx->card->type) { 431 case CX18_CARD_HVR_1600_ESMT: 432 case CX18_CARD_HVR_1600_SAMSUNG: 433 dvb->fe = dvb_attach(s5h1409_attach, 434 &hauppauge_hvr1600_config, 435 &cx->i2c_adap[0]); 436 if (dvb->fe != NULL) { 437 dvb_attach(mxl5005s_attach, dvb->fe, 438 &cx->i2c_adap[0], 439 &hauppauge_hvr1600_tuner); 440 ret = 0; 441 } 442 break; 443 case CX18_CARD_LEADTEK_DVR3100H: 444 dvb->fe = dvb_attach(zl10353_attach, 445 &leadtek_dvr3100h_demod, 446 &cx->i2c_adap[1]); 447 if (dvb->fe != NULL) { 448 struct dvb_frontend *fe; 449 struct xc2028_config cfg = { 450 .i2c_adap = &cx->i2c_adap[1], 451 .i2c_addr = 0xc2 >> 1, 452 .ctrl = NULL, 453 }; 454 static struct xc2028_ctrl ctrl = { 455 .fname = XC2028_DEFAULT_FIRMWARE, 456 .max_len = 64, 457 .demod = XC3028_FE_ZARLINK456, 458 .type = XC2028_AUTO, 459 }; 460 461 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg); 462 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL) 463 fe->ops.tuner_ops.set_config(fe, &ctrl); 464 } 465 break; 466 case CX18_CARD_YUAN_MPC718: 467 /* 468 * TODO 469 * Apparently, these cards also could instead have a 470 * DiBcom demod supported by one of the db7000 drivers 471 */ 472 dvb->fe = dvb_attach(mt352_attach, 473 &yuan_mpc718_mt352_demod, 474 &cx->i2c_adap[1]); 475 if (dvb->fe == NULL) 476 dvb->fe = dvb_attach(zl10353_attach, 477 &yuan_mpc718_zl10353_demod, 478 &cx->i2c_adap[1]); 479 if (dvb->fe != NULL) { 480 struct dvb_frontend *fe; 481 struct xc2028_config cfg = { 482 .i2c_adap = &cx->i2c_adap[1], 483 .i2c_addr = 0xc2 >> 1, 484 .ctrl = NULL, 485 }; 486 static struct xc2028_ctrl ctrl = { 487 .fname = XC2028_DEFAULT_FIRMWARE, 488 .max_len = 64, 489 .demod = XC3028_FE_ZARLINK456, 490 .type = XC2028_AUTO, 491 }; 492 493 fe = dvb_attach(xc2028_attach, dvb->fe, &cfg); 494 if (fe != NULL && fe->ops.tuner_ops.set_config != NULL) 495 fe->ops.tuner_ops.set_config(fe, &ctrl); 496 } 497 break; 498 default: 499 /* No Digital Tv Support */ 500 break; 501 } 502 503 if (dvb->fe == NULL) { 504 CX18_ERR("frontend initialization failed\n"); 505 return -1; 506 } 507 508 dvb->fe->callback = cx18_reset_tuner_gpio; 509 510 ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe); 511 if (ret < 0) { 512 if (dvb->fe->ops.release) 513 dvb->fe->ops.release(dvb->fe); 514 return ret; 515 } 516 517 /* 518 * The firmware seems to enable the TS DMUX clock 519 * under various circumstances. However, since we know we 520 * might use it, let's just turn it on ourselves here. 521 */ 522 cx18_write_reg_expect(cx, 523 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK, 524 CX18_CLOCK_ENABLE2, 525 CX18_DMUX_CLK_MASK, 526 (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK); 527 528 return ret; 529} 530