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 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 37 38 #define _AU0828_BULKPIPE 0x83 39 #define _BULKPIPESIZE 0xe522 40 41 static u8 hauppauge_hvr950q_led_states[] = { 42 0x00, /* off */ 43 0x02, /* yellow */ 44 0x04, /* green */ 45 }; 46 47 static struct au8522_led_config hauppauge_hvr950q_led_cfg = { 48 .gpio_output = 0x00e0, 49 .gpio_output_enable = 0x6006, 50 .gpio_output_disable = 0x0660, 51 52 .gpio_leds = 0x00e2, 53 .led_states = hauppauge_hvr950q_led_states, 54 .num_led_states = sizeof(hauppauge_hvr950q_led_states), 55 56 .vsb8_strong = 20 /* dB */ * 10, 57 .qam64_strong = 25 /* dB */ * 10, 58 .qam256_strong = 32 /* dB */ * 10, 59 }; 60 61 static struct au8522_config hauppauge_hvr950q_config = { 62 .demod_address = 0x8e >> 1, 63 .status_mode = AU8522_DEMODLOCKING, 64 .qam_if = AU8522_IF_6MHZ, 65 .vsb_if = AU8522_IF_6MHZ, 66 .led_cfg = &hauppauge_hvr950q_led_cfg, 67 }; 68 69 static struct au8522_config fusionhdtv7usb_config = { 70 .demod_address = 0x8e >> 1, 71 .status_mode = AU8522_DEMODLOCKING, 72 .qam_if = AU8522_IF_6MHZ, 73 .vsb_if = AU8522_IF_6MHZ, 74 }; 75 76 static struct au8522_config hauppauge_woodbury_config = { 77 .demod_address = 0x8e >> 1, 78 .status_mode = AU8522_DEMODLOCKING, 79 .qam_if = AU8522_IF_4MHZ, 80 .vsb_if = AU8522_IF_3_25MHZ, 81 }; 82 83 static struct xc5000_config hauppauge_xc5000a_config = { 84 .i2c_address = 0x61, 85 .if_khz = 6000, 86 .chip_id = XC5000A, 87 }; 88 89 static struct xc5000_config hauppauge_xc5000c_config = { 90 .i2c_address = 0x61, 91 .if_khz = 6000, 92 .chip_id = XC5000C, 93 }; 94 95 static struct mxl5007t_config mxl5007t_hvr950q_config = { 96 .xtal_freq_hz = MxL_XTAL_24_MHZ, 97 .if_freq_hz = MxL_IF_6_MHZ, 98 }; 99 100 static struct tda18271_config hauppauge_woodbury_tunerconfig = { 101 .gate = TDA18271_GATE_DIGITAL, 102 }; 103 104 static void au0828_restart_dvb_streaming(struct work_struct *work); 105 106 /*-------------------------------------------------------------------*/ 107 static void urb_completion(struct urb *purb) 108 { 109 struct au0828_dev *dev = purb->context; 110 int ptype = usb_pipetype(purb->pipe); 111 unsigned char *ptr; 112 113 dprintk(2, "%s()\n", __func__); 114 115 if (!dev) 116 return; 117 118 if (dev->urb_streaming == 0) 119 return; 120 121 if (ptype != PIPE_BULK) { 122 printk(KERN_ERR "%s() Unsupported URB type %d\n", 123 __func__, ptype); 124 return; 125 } 126 127 /* See if the stream is corrupted (to work around a hardware 128 bug where the stream gets misaligned */ 129 ptr = purb->transfer_buffer; 130 if (purb->actual_length > 0 && ptr[0] != 0x47) { 131 dprintk(1, "Need to restart streaming %02x len=%d!\n", 132 ptr[0], purb->actual_length); 133 schedule_work(&dev->restart_streaming); 134 return; 135 } 136 137 /* Feed the transport payload into the kernel demux */ 138 dvb_dmx_swfilter_packets(&dev->dvb.demux, 139 purb->transfer_buffer, purb->actual_length / 188); 140 141 /* Clean the buffer before we requeue */ 142 memset(purb->transfer_buffer, 0, URB_BUFSIZE); 143 144 /* Requeue URB */ 145 usb_submit_urb(purb, GFP_ATOMIC); 146 } 147 148 static int stop_urb_transfer(struct au0828_dev *dev) 149 { 150 int i; 151 152 dprintk(2, "%s()\n", __func__); 153 154 dev->urb_streaming = 0; 155 for (i = 0; i < URB_COUNT; i++) { 156 usb_kill_urb(dev->urbs[i]); 157 kfree(dev->urbs[i]->transfer_buffer); 158 usb_free_urb(dev->urbs[i]); 159 } 160 161 return 0; 162 } 163 164 static int start_urb_transfer(struct au0828_dev *dev) 165 { 166 struct urb *purb; 167 int i, ret = -ENOMEM; 168 169 dprintk(2, "%s()\n", __func__); 170 171 if (dev->urb_streaming) { 172 dprintk(2, "%s: bulk xfer already running!\n", __func__); 173 return 0; 174 } 175 176 for (i = 0; i < URB_COUNT; i++) { 177 178 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); 179 if (!dev->urbs[i]) 180 goto err; 181 182 purb = dev->urbs[i]; 183 184 purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL); 185 if (!purb->transfer_buffer) { 186 usb_free_urb(purb); 187 dev->urbs[i] = NULL; 188 goto err; 189 } 190 191 purb->status = -EINPROGRESS; 192 usb_fill_bulk_urb(purb, 193 dev->usbdev, 194 usb_rcvbulkpipe(dev->usbdev, 195 _AU0828_BULKPIPE), 196 purb->transfer_buffer, 197 URB_BUFSIZE, 198 urb_completion, 199 dev); 200 201 } 202 203 for (i = 0; i < URB_COUNT; i++) { 204 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC); 205 if (ret != 0) { 206 stop_urb_transfer(dev); 207 printk(KERN_ERR "%s: failed urb submission, " 208 "err = %d\n", __func__, ret); 209 return ret; 210 } 211 } 212 213 dev->urb_streaming = 1; 214 ret = 0; 215 216 err: 217 return ret; 218 } 219 220 static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) 221 { 222 struct dvb_demux *demux = feed->demux; 223 struct au0828_dev *dev = (struct au0828_dev *) demux->priv; 224 struct au0828_dvb *dvb = &dev->dvb; 225 int ret = 0; 226 227 dprintk(1, "%s()\n", __func__); 228 229 if (!demux->dmx.frontend) 230 return -EINVAL; 231 232 if (dvb) { 233 mutex_lock(&dvb->lock); 234 if (dvb->feeding++ == 0) { 235 /* Start transport */ 236 au0828_write(dev, 0x608, 0x90); 237 au0828_write(dev, 0x609, 0x72); 238 au0828_write(dev, 0x60a, 0x71); 239 au0828_write(dev, 0x60b, 0x01); 240 ret = start_urb_transfer(dev); 241 } 242 mutex_unlock(&dvb->lock); 243 } 244 245 return ret; 246 } 247 248 static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed) 249 { 250 struct dvb_demux *demux = feed->demux; 251 struct au0828_dev *dev = (struct au0828_dev *) demux->priv; 252 struct au0828_dvb *dvb = &dev->dvb; 253 int ret = 0; 254 255 dprintk(1, "%s()\n", __func__); 256 257 if (dvb) { 258 mutex_lock(&dvb->lock); 259 if (--dvb->feeding == 0) { 260 /* Stop transport */ 261 ret = stop_urb_transfer(dev); 262 au0828_write(dev, 0x60b, 0x00); 263 } 264 mutex_unlock(&dvb->lock); 265 } 266 267 return ret; 268 } 269 270 static void au0828_restart_dvb_streaming(struct work_struct *work) 271 { 272 struct au0828_dev *dev = container_of(work, struct au0828_dev, 273 restart_streaming); 274 struct au0828_dvb *dvb = &dev->dvb; 275 276 if (dev->urb_streaming == 0) 277 return; 278 279 dprintk(1, "Restarting streaming...!\n"); 280 281 mutex_lock(&dvb->lock); 282 283 /* Stop transport */ 284 stop_urb_transfer(dev); 285 au0828_write(dev, 0x608, 0x00); 286 au0828_write(dev, 0x609, 0x00); 287 au0828_write(dev, 0x60a, 0x00); 288 au0828_write(dev, 0x60b, 0x00); 289 290 /* Start transport */ 291 au0828_write(dev, 0x608, 0x90); 292 au0828_write(dev, 0x609, 0x72); 293 au0828_write(dev, 0x60a, 0x71); 294 au0828_write(dev, 0x60b, 0x01); 295 start_urb_transfer(dev); 296 297 mutex_unlock(&dvb->lock); 298 } 299 300 static int dvb_register(struct au0828_dev *dev) 301 { 302 struct au0828_dvb *dvb = &dev->dvb; 303 int result; 304 305 dprintk(1, "%s()\n", __func__); 306 307 INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming); 308 309 /* register adapter */ 310 result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE, 311 &dev->usbdev->dev, adapter_nr); 312 if (result < 0) { 313 printk(KERN_ERR "%s: dvb_register_adapter failed " 314 "(errno = %d)\n", DRIVER_NAME, result); 315 goto fail_adapter; 316 } 317 dvb->adapter.priv = dev; 318 319 /* register frontend */ 320 result = dvb_register_frontend(&dvb->adapter, dvb->frontend); 321 if (result < 0) { 322 printk(KERN_ERR "%s: dvb_register_frontend failed " 323 "(errno = %d)\n", DRIVER_NAME, result); 324 goto fail_frontend; 325 } 326 327 /* register demux stuff */ 328 dvb->demux.dmx.capabilities = 329 DMX_TS_FILTERING | DMX_SECTION_FILTERING | 330 DMX_MEMORY_BASED_FILTERING; 331 dvb->demux.priv = dev; 332 dvb->demux.filternum = 256; 333 dvb->demux.feednum = 256; 334 dvb->demux.start_feed = au0828_dvb_start_feed; 335 dvb->demux.stop_feed = au0828_dvb_stop_feed; 336 result = dvb_dmx_init(&dvb->demux); 337 if (result < 0) { 338 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n", 339 DRIVER_NAME, result); 340 goto fail_dmx; 341 } 342 343 dvb->dmxdev.filternum = 256; 344 dvb->dmxdev.demux = &dvb->demux.dmx; 345 dvb->dmxdev.capabilities = 0; 346 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); 347 if (result < 0) { 348 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n", 349 DRIVER_NAME, result); 350 goto fail_dmxdev; 351 } 352 353 dvb->fe_hw.source = DMX_FRONTEND_0; 354 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); 355 if (result < 0) { 356 printk(KERN_ERR "%s: add_frontend failed " 357 "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result); 358 goto fail_fe_hw; 359 } 360 361 dvb->fe_mem.source = DMX_MEMORY_FE; 362 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); 363 if (result < 0) { 364 printk(KERN_ERR "%s: add_frontend failed " 365 "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result); 366 goto fail_fe_mem; 367 } 368 369 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); 370 if (result < 0) { 371 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n", 372 DRIVER_NAME, result); 373 goto fail_fe_conn; 374 } 375 376 /* register network adapter */ 377 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); 378 return 0; 379 380 fail_fe_conn: 381 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); 382 fail_fe_mem: 383 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); 384 fail_fe_hw: 385 dvb_dmxdev_release(&dvb->dmxdev); 386 fail_dmxdev: 387 dvb_dmx_release(&dvb->demux); 388 fail_dmx: 389 dvb_unregister_frontend(dvb->frontend); 390 fail_frontend: 391 dvb_frontend_detach(dvb->frontend); 392 dvb_unregister_adapter(&dvb->adapter); 393 fail_adapter: 394 return result; 395 } 396 397 void au0828_dvb_unregister(struct au0828_dev *dev) 398 { 399 struct au0828_dvb *dvb = &dev->dvb; 400 401 dprintk(1, "%s()\n", __func__); 402 403 if (dvb->frontend == NULL) 404 return; 405 406 dvb_net_release(&dvb->net); 407 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); 408 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); 409 dvb_dmxdev_release(&dvb->dmxdev); 410 dvb_dmx_release(&dvb->demux); 411 dvb_unregister_frontend(dvb->frontend); 412 dvb_frontend_detach(dvb->frontend); 413 dvb_unregister_adapter(&dvb->adapter); 414 } 415 416 /* All the DVB attach calls go here, this function get's modified 417 * for each new card. No other function in this file needs 418 * to change. 419 */ 420 int au0828_dvb_register(struct au0828_dev *dev) 421 { 422 struct au0828_dvb *dvb = &dev->dvb; 423 int ret; 424 425 dprintk(1, "%s()\n", __func__); 426 427 /* init frontend */ 428 switch (dev->boardnr) { 429 case AU0828_BOARD_HAUPPAUGE_HVR850: 430 case AU0828_BOARD_HAUPPAUGE_HVR950Q: 431 dvb->frontend = dvb_attach(au8522_attach, 432 &hauppauge_hvr950q_config, 433 &dev->i2c_adap); 434 if (dvb->frontend != NULL) 435 switch (dev->board.tuner_type) { 436 default: 437 case TUNER_XC5000: 438 dvb_attach(xc5000_attach, dvb->frontend, 439 &dev->i2c_adap, 440 &hauppauge_xc5000a_config); 441 break; 442 case TUNER_XC5000C: 443 dvb_attach(xc5000_attach, dvb->frontend, 444 &dev->i2c_adap, 445 &hauppauge_xc5000c_config); 446 break; 447 } 448 break; 449 case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL: 450 dvb->frontend = dvb_attach(au8522_attach, 451 &hauppauge_hvr950q_config, 452 &dev->i2c_adap); 453 if (dvb->frontend != NULL) 454 dvb_attach(mxl5007t_attach, dvb->frontend, 455 &dev->i2c_adap, 0x60, 456 &mxl5007t_hvr950q_config); 457 break; 458 case AU0828_BOARD_HAUPPAUGE_WOODBURY: 459 dvb->frontend = dvb_attach(au8522_attach, 460 &hauppauge_woodbury_config, 461 &dev->i2c_adap); 462 if (dvb->frontend != NULL) 463 dvb_attach(tda18271_attach, dvb->frontend, 464 0x60, &dev->i2c_adap, 465 &hauppauge_woodbury_tunerconfig); 466 break; 467 case AU0828_BOARD_DVICO_FUSIONHDTV7: 468 dvb->frontend = dvb_attach(au8522_attach, 469 &fusionhdtv7usb_config, 470 &dev->i2c_adap); 471 if (dvb->frontend != NULL) { 472 dvb_attach(xc5000_attach, dvb->frontend, 473 &dev->i2c_adap, 474 &hauppauge_xc5000a_config); 475 } 476 break; 477 default: 478 printk(KERN_WARNING "The frontend of your DVB/ATSC card " 479 "isn't supported yet\n"); 480 break; 481 } 482 if (NULL == dvb->frontend) { 483 printk(KERN_ERR "%s() Frontend initialization failed\n", 484 __func__); 485 return -1; 486 } 487 /* define general-purpose callback pointer */ 488 dvb->frontend->callback = au0828_tuner_callback; 489 490 /* register everything */ 491 ret = dvb_register(dev); 492 if (ret < 0) { 493 if (dvb->frontend->ops.release) 494 dvb->frontend->ops.release(dvb->frontend); 495 return ret; 496 } 497 498 return 0; 499 } 500