1 /* 2 * Driver for the Auvitek USB bridge 3 * 4 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 22 #include <linux/module.h> 23 #include <linux/slab.h> 24 #include <linux/init.h> 25 #include <linux/device.h> 26 #include <linux/suspend.h> 27 #include <media/v4l2-common.h> 28 #include <media/tuner.h> 29 30 #include "au0828.h" 31 #include "au8522.h" 32 #include "xc5000.h" 33 #include "mxl5007t.h" 34 #include "tda18271.h" 35 36 static int preallocate_big_buffers; 37 module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644); 38 MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time"); 39 40 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 41 42 #define _AU0828_BULKPIPE 0x83 43 #define _BULKPIPESIZE 0xe522 44 45 static u8 hauppauge_hvr950q_led_states[] = { 46 0x00, /* off */ 47 0x02, /* yellow */ 48 0x04, /* green */ 49 }; 50 51 static struct au8522_led_config hauppauge_hvr950q_led_cfg = { 52 .gpio_output = 0x00e0, 53 .gpio_output_enable = 0x6006, 54 .gpio_output_disable = 0x0660, 55 56 .gpio_leds = 0x00e2, 57 .led_states = hauppauge_hvr950q_led_states, 58 .num_led_states = sizeof(hauppauge_hvr950q_led_states), 59 60 .vsb8_strong = 20 /* dB */ * 10, 61 .qam64_strong = 25 /* dB */ * 10, 62 .qam256_strong = 32 /* dB */ * 10, 63 }; 64 65 static struct au8522_config hauppauge_hvr950q_config = { 66 .demod_address = 0x8e >> 1, 67 .status_mode = AU8522_DEMODLOCKING, 68 .qam_if = AU8522_IF_6MHZ, 69 .vsb_if = AU8522_IF_6MHZ, 70 .led_cfg = &hauppauge_hvr950q_led_cfg, 71 }; 72 73 static struct au8522_config fusionhdtv7usb_config = { 74 .demod_address = 0x8e >> 1, 75 .status_mode = AU8522_DEMODLOCKING, 76 .qam_if = AU8522_IF_6MHZ, 77 .vsb_if = AU8522_IF_6MHZ, 78 }; 79 80 static struct au8522_config hauppauge_woodbury_config = { 81 .demod_address = 0x8e >> 1, 82 .status_mode = AU8522_DEMODLOCKING, 83 .qam_if = AU8522_IF_4MHZ, 84 .vsb_if = AU8522_IF_3_25MHZ, 85 }; 86 87 static struct xc5000_config hauppauge_xc5000a_config = { 88 .i2c_address = 0x61, 89 .if_khz = 6000, 90 .chip_id = XC5000A, 91 }; 92 93 static struct xc5000_config hauppauge_xc5000c_config = { 94 .i2c_address = 0x61, 95 .if_khz = 6000, 96 .chip_id = XC5000C, 97 }; 98 99 static struct mxl5007t_config mxl5007t_hvr950q_config = { 100 .xtal_freq_hz = MxL_XTAL_24_MHZ, 101 .if_freq_hz = MxL_IF_6_MHZ, 102 }; 103 104 static struct tda18271_config hauppauge_woodbury_tunerconfig = { 105 .gate = TDA18271_GATE_DIGITAL, 106 }; 107 108 static void au0828_restart_dvb_streaming(struct work_struct *work); 109 110 /*-------------------------------------------------------------------*/ 111 static void urb_completion(struct urb *purb) 112 { 113 struct au0828_dev *dev = purb->context; 114 int ptype = usb_pipetype(purb->pipe); 115 unsigned char *ptr; 116 117 dprintk(2, "%s()\n", __func__); 118 119 if (!dev) 120 return; 121 122 if (dev->urb_streaming == 0) 123 return; 124 125 if (ptype != PIPE_BULK) { 126 printk(KERN_ERR "%s() Unsupported URB type %d\n", 127 __func__, ptype); 128 return; 129 } 130 131 /* See if the stream is corrupted (to work around a hardware 132 bug where the stream gets misaligned */ 133 ptr = purb->transfer_buffer; 134 if (purb->actual_length > 0 && ptr[0] != 0x47) { 135 dprintk(1, "Need to restart streaming %02x len=%d!\n", 136 ptr[0], purb->actual_length); 137 schedule_work(&dev->restart_streaming); 138 return; 139 } 140 141 /* Feed the transport payload into the kernel demux */ 142 dvb_dmx_swfilter_packets(&dev->dvb.demux, 143 purb->transfer_buffer, purb->actual_length / 188); 144 145 /* Clean the buffer before we requeue */ 146 memset(purb->transfer_buffer, 0, URB_BUFSIZE); 147 148 /* Requeue URB */ 149 usb_submit_urb(purb, GFP_ATOMIC); 150 } 151 152 static int stop_urb_transfer(struct au0828_dev *dev) 153 { 154 int i; 155 156 dprintk(2, "%s()\n", __func__); 157 158 dev->urb_streaming = 0; 159 for (i = 0; i < URB_COUNT; i++) { 160 if (dev->urbs[i]) { 161 usb_kill_urb(dev->urbs[i]); 162 if (!preallocate_big_buffers) 163 kfree(dev->urbs[i]->transfer_buffer); 164 165 usb_free_urb(dev->urbs[i]); 166 } 167 } 168 169 return 0; 170 } 171 172 static int start_urb_transfer(struct au0828_dev *dev) 173 { 174 struct urb *purb; 175 int i, ret = -ENOMEM; 176 177 dprintk(2, "%s()\n", __func__); 178 179 if (dev->urb_streaming) { 180 dprintk(2, "%s: bulk xfer already running!\n", __func__); 181 return 0; 182 } 183 184 for (i = 0; i < URB_COUNT; i++) { 185 186 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); 187 if (!dev->urbs[i]) 188 goto err; 189 190 purb = dev->urbs[i]; 191 192 if (preallocate_big_buffers) 193 purb->transfer_buffer = dev->dig_transfer_buffer[i]; 194 else 195 purb->transfer_buffer = kzalloc(URB_BUFSIZE, 196 GFP_KERNEL); 197 198 if (!purb->transfer_buffer) { 199 usb_free_urb(purb); 200 dev->urbs[i] = NULL; 201 printk(KERN_ERR 202 "%s: failed big buffer allocation, err = %d\n", 203 __func__, ret); 204 goto err; 205 } 206 207 purb->status = -EINPROGRESS; 208 usb_fill_bulk_urb(purb, 209 dev->usbdev, 210 usb_rcvbulkpipe(dev->usbdev, 211 _AU0828_BULKPIPE), 212 purb->transfer_buffer, 213 URB_BUFSIZE, 214 urb_completion, 215 dev); 216 217 } 218 219 for (i = 0; i < URB_COUNT; i++) { 220 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC); 221 if (ret != 0) { 222 stop_urb_transfer(dev); 223 printk(KERN_ERR "%s: failed urb submission, " 224 "err = %d\n", __func__, ret); 225 return ret; 226 } 227 } 228 229 dev->urb_streaming = 1; 230 ret = 0; 231 232 err: 233 return ret; 234 } 235 236 static void au0828_start_transport(struct au0828_dev *dev) 237 { 238 au0828_write(dev, 0x608, 0x90); 239 au0828_write(dev, 0x609, 0x72); 240 au0828_write(dev, 0x60a, 0x71); 241 au0828_write(dev, 0x60b, 0x01); 242 243 } 244 245 static void au0828_stop_transport(struct au0828_dev *dev, int full_stop) 246 { 247 if (full_stop) { 248 au0828_write(dev, 0x608, 0x00); 249 au0828_write(dev, 0x609, 0x00); 250 au0828_write(dev, 0x60a, 0x00); 251 } 252 au0828_write(dev, 0x60b, 0x00); 253 } 254 255 256 257 static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) 258 { 259 struct dvb_demux *demux = feed->demux; 260 struct au0828_dev *dev = (struct au0828_dev *) demux->priv; 261 struct au0828_dvb *dvb = &dev->dvb; 262 int ret = 0; 263 264 dprintk(1, "%s()\n", __func__); 265 266 if (!demux->dmx.frontend) 267 return -EINVAL; 268 269 if (dvb) { 270 mutex_lock(&dvb->lock); 271 dvb->start_count++; 272 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__, 273 dvb->start_count, dvb->stop_count); 274 if (dvb->feeding++ == 0) { 275 /* Start transport */ 276 au0828_start_transport(dev); 277 ret = start_urb_transfer(dev); 278 if (ret < 0) { 279 au0828_stop_transport(dev, 0); 280 dvb->feeding--; /* We ran out of memory... */ 281 } 282 } 283 mutex_unlock(&dvb->lock); 284 } 285 286 return ret; 287 } 288 289 static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed) 290 { 291 struct dvb_demux *demux = feed->demux; 292 struct au0828_dev *dev = (struct au0828_dev *) demux->priv; 293 struct au0828_dvb *dvb = &dev->dvb; 294 int ret = 0; 295 296 dprintk(1, "%s()\n", __func__); 297 298 if (dvb) { 299 mutex_lock(&dvb->lock); 300 dvb->stop_count++; 301 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__, 302 dvb->start_count, dvb->stop_count); 303 if (dvb->feeding > 0) { 304 dvb->feeding--; 305 if (dvb->feeding == 0) { 306 /* Stop transport */ 307 ret = stop_urb_transfer(dev); 308 au0828_stop_transport(dev, 0); 309 } 310 } 311 mutex_unlock(&dvb->lock); 312 } 313 314 return ret; 315 } 316 317 static void au0828_restart_dvb_streaming(struct work_struct *work) 318 { 319 struct au0828_dev *dev = container_of(work, struct au0828_dev, 320 restart_streaming); 321 struct au0828_dvb *dvb = &dev->dvb; 322 323 if (dev->urb_streaming == 0) 324 return; 325 326 dprintk(1, "Restarting streaming...!\n"); 327 328 mutex_lock(&dvb->lock); 329 330 /* Stop transport */ 331 stop_urb_transfer(dev); 332 au0828_stop_transport(dev, 1); 333 334 /* Start transport */ 335 au0828_start_transport(dev); 336 start_urb_transfer(dev); 337 338 mutex_unlock(&dvb->lock); 339 } 340 341 static int dvb_register(struct au0828_dev *dev) 342 { 343 struct au0828_dvb *dvb = &dev->dvb; 344 int result; 345 346 dprintk(1, "%s()\n", __func__); 347 348 if (preallocate_big_buffers) { 349 int i; 350 for (i = 0; i < URB_COUNT; i++) { 351 dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE, 352 GFP_KERNEL); 353 354 if (!dev->dig_transfer_buffer[i]) { 355 result = -ENOMEM; 356 357 printk(KERN_ERR 358 "%s: failed buffer allocation (errno = %d)\n", 359 DRIVER_NAME, result); 360 goto fail_adapter; 361 } 362 } 363 } 364 365 INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming); 366 367 /* register adapter */ 368 result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE, 369 &dev->usbdev->dev, adapter_nr); 370 if (result < 0) { 371 printk(KERN_ERR "%s: dvb_register_adapter failed " 372 "(errno = %d)\n", DRIVER_NAME, result); 373 goto fail_adapter; 374 } 375 dvb->adapter.priv = dev; 376 377 /* register frontend */ 378 result = dvb_register_frontend(&dvb->adapter, dvb->frontend); 379 if (result < 0) { 380 printk(KERN_ERR "%s: dvb_register_frontend failed " 381 "(errno = %d)\n", DRIVER_NAME, result); 382 goto fail_frontend; 383 } 384 385 /* register demux stuff */ 386 dvb->demux.dmx.capabilities = 387 DMX_TS_FILTERING | DMX_SECTION_FILTERING | 388 DMX_MEMORY_BASED_FILTERING; 389 dvb->demux.priv = dev; 390 dvb->demux.filternum = 256; 391 dvb->demux.feednum = 256; 392 dvb->demux.start_feed = au0828_dvb_start_feed; 393 dvb->demux.stop_feed = au0828_dvb_stop_feed; 394 result = dvb_dmx_init(&dvb->demux); 395 if (result < 0) { 396 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n", 397 DRIVER_NAME, result); 398 goto fail_dmx; 399 } 400 401 dvb->dmxdev.filternum = 256; 402 dvb->dmxdev.demux = &dvb->demux.dmx; 403 dvb->dmxdev.capabilities = 0; 404 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); 405 if (result < 0) { 406 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n", 407 DRIVER_NAME, result); 408 goto fail_dmxdev; 409 } 410 411 dvb->fe_hw.source = DMX_FRONTEND_0; 412 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); 413 if (result < 0) { 414 printk(KERN_ERR "%s: add_frontend failed " 415 "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result); 416 goto fail_fe_hw; 417 } 418 419 dvb->fe_mem.source = DMX_MEMORY_FE; 420 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); 421 if (result < 0) { 422 printk(KERN_ERR "%s: add_frontend failed " 423 "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result); 424 goto fail_fe_mem; 425 } 426 427 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); 428 if (result < 0) { 429 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n", 430 DRIVER_NAME, result); 431 goto fail_fe_conn; 432 } 433 434 /* register network adapter */ 435 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); 436 437 dvb->start_count = 0; 438 dvb->stop_count = 0; 439 return 0; 440 441 fail_fe_conn: 442 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); 443 fail_fe_mem: 444 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); 445 fail_fe_hw: 446 dvb_dmxdev_release(&dvb->dmxdev); 447 fail_dmxdev: 448 dvb_dmx_release(&dvb->demux); 449 fail_dmx: 450 dvb_unregister_frontend(dvb->frontend); 451 fail_frontend: 452 dvb_frontend_detach(dvb->frontend); 453 dvb_unregister_adapter(&dvb->adapter); 454 fail_adapter: 455 456 if (preallocate_big_buffers) { 457 int i; 458 for (i = 0; i < URB_COUNT; i++) 459 kfree(dev->dig_transfer_buffer[i]); 460 } 461 462 return result; 463 } 464 465 void au0828_dvb_unregister(struct au0828_dev *dev) 466 { 467 struct au0828_dvb *dvb = &dev->dvb; 468 469 dprintk(1, "%s()\n", __func__); 470 471 if (dvb->frontend == NULL) 472 return; 473 474 cancel_work_sync(&dev->restart_streaming); 475 476 dvb_net_release(&dvb->net); 477 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); 478 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); 479 dvb_dmxdev_release(&dvb->dmxdev); 480 dvb_dmx_release(&dvb->demux); 481 dvb_unregister_frontend(dvb->frontend); 482 dvb_frontend_detach(dvb->frontend); 483 dvb_unregister_adapter(&dvb->adapter); 484 485 if (preallocate_big_buffers) { 486 int i; 487 for (i = 0; i < URB_COUNT; i++) 488 kfree(dev->dig_transfer_buffer[i]); 489 } 490 491 492 } 493 494 /* All the DVB attach calls go here, this function get's modified 495 * for each new card. No other function in this file needs 496 * to change. 497 */ 498 int au0828_dvb_register(struct au0828_dev *dev) 499 { 500 struct au0828_dvb *dvb = &dev->dvb; 501 int ret; 502 503 dprintk(1, "%s()\n", __func__); 504 505 /* init frontend */ 506 switch (dev->boardnr) { 507 case AU0828_BOARD_HAUPPAUGE_HVR850: 508 case AU0828_BOARD_HAUPPAUGE_HVR950Q: 509 dvb->frontend = dvb_attach(au8522_attach, 510 &hauppauge_hvr950q_config, 511 &dev->i2c_adap); 512 if (dvb->frontend != NULL) 513 switch (dev->board.tuner_type) { 514 default: 515 case TUNER_XC5000: 516 dvb_attach(xc5000_attach, dvb->frontend, 517 &dev->i2c_adap, 518 &hauppauge_xc5000a_config); 519 break; 520 case TUNER_XC5000C: 521 dvb_attach(xc5000_attach, dvb->frontend, 522 &dev->i2c_adap, 523 &hauppauge_xc5000c_config); 524 break; 525 } 526 break; 527 case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL: 528 dvb->frontend = dvb_attach(au8522_attach, 529 &hauppauge_hvr950q_config, 530 &dev->i2c_adap); 531 if (dvb->frontend != NULL) 532 dvb_attach(mxl5007t_attach, dvb->frontend, 533 &dev->i2c_adap, 0x60, 534 &mxl5007t_hvr950q_config); 535 break; 536 case AU0828_BOARD_HAUPPAUGE_WOODBURY: 537 dvb->frontend = dvb_attach(au8522_attach, 538 &hauppauge_woodbury_config, 539 &dev->i2c_adap); 540 if (dvb->frontend != NULL) 541 dvb_attach(tda18271_attach, dvb->frontend, 542 0x60, &dev->i2c_adap, 543 &hauppauge_woodbury_tunerconfig); 544 break; 545 case AU0828_BOARD_DVICO_FUSIONHDTV7: 546 dvb->frontend = dvb_attach(au8522_attach, 547 &fusionhdtv7usb_config, 548 &dev->i2c_adap); 549 if (dvb->frontend != NULL) { 550 dvb_attach(xc5000_attach, dvb->frontend, 551 &dev->i2c_adap, 552 &hauppauge_xc5000a_config); 553 } 554 break; 555 default: 556 printk(KERN_WARNING "The frontend of your DVB/ATSC card " 557 "isn't supported yet\n"); 558 break; 559 } 560 if (NULL == dvb->frontend) { 561 printk(KERN_ERR "%s() Frontend initialization failed\n", 562 __func__); 563 return -1; 564 } 565 /* define general-purpose callback pointer */ 566 dvb->frontend->callback = au0828_tuner_callback; 567 568 /* register everything */ 569 ret = dvb_register(dev); 570 if (ret < 0) { 571 if (dvb->frontend->ops.release) 572 dvb->frontend->ops.release(dvb->frontend); 573 return ret; 574 } 575 576 return 0; 577 } 578