drivers/media/dvb/cinergyT2/cinergyT2.c

   1 /*
   2  * TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
   3  *
   4  * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
   5  *                  Holger Waechtler <holger@qanu.de>
   6  *
   7  *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  */
  24
  25 #include <linux/config.h>
  26 #include <linux/init.h>
  27 #include <linux/module.h>
  28 #include <linux/slab.h>
  29 #include <linux/usb.h>
  30 #include <linux/pci.h>
  31 #include <linux/input.h>
  32 #include <linux/dvb/frontend.h>
  33
  34 #include "dmxdev.h"
  35 #include "dvb_demux.h"
  36 #include "dvb_net.h"
  37
  38
  39 #ifdef CONFIG_DVB_CINERGYT2_TUNING
  40         #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
  41         #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
  42         #define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
  43         #ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
  44                 #define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
  45                 #define ENABLE_RC (1)
  46         #endif
  47 #else
  48         #define STREAM_URB_COUNT (32)
  49         #define STREAM_BUF_SIZE (512)   /* bytes */
  50         #define ENABLE_RC (1)
  51         #define RC_QUERY_INTERVAL (100) /* milliseconds */
  52         #define QUERY_INTERVAL (333)    /* milliseconds */
  53 #endif
  54
  55 #define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
  56
  57 static int debug;
  58 module_param_named(debug, debug, int, 0644);
  59 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
  60
  61 #define dprintk(level, args...)                                         \
  62 do {                                                                    \
  63         if ((debug & level)) {                                          \
  64                 printk("%s: %s(): ", __stringify(KBUILD_MODNAME),       \
  65                        __FUNCTION__);                                   \
  66                 printk(args); }                                         \
  67 } while (0)
  68
  69 enum cinergyt2_ep1_cmd {
  70         CINERGYT2_EP1_PID_TABLE_RESET           = 0x01,
  71         CINERGYT2_EP1_PID_SETUP                 = 0x02,
  72         CINERGYT2_EP1_CONTROL_STREAM_TRANSFER   = 0x03,
  73         CINERGYT2_EP1_SET_TUNER_PARAMETERS      = 0x04,
  74         CINERGYT2_EP1_GET_TUNER_STATUS          = 0x05,
  75         CINERGYT2_EP1_START_SCAN                = 0x06,
  76         CINERGYT2_EP1_CONTINUE_SCAN             = 0x07,
  77         CINERGYT2_EP1_GET_RC_EVENTS             = 0x08,
  78         CINERGYT2_EP1_SLEEP_MODE                = 0x09
  79 };
  80
  81 struct dvbt_set_parameters_msg {
  82         uint8_t cmd;
  83         uint32_t freq;
  84         uint8_t bandwidth;
  85         uint16_t tps;
  86         uint8_t flags;
  87 } __attribute__((packed));
  88
  89 struct dvbt_get_status_msg {
  90         uint32_t freq;
  91         uint8_t bandwidth;
  92         uint16_t tps;
  93         uint8_t flags;
  94         uint16_t gain;
  95         uint8_t snr;
  96         uint32_t viterbi_error_rate;
  97         uint32_t rs_error_rate;
  98         uint32_t uncorrected_block_count;
  99         uint8_t lock_bits;
 100         uint8_t prev_lock_bits;
 101 } __attribute__((packed));
 102
 103 static struct dvb_frontend_info cinergyt2_fe_info = {
 104         .name = DRIVER_NAME,
 105         .type = FE_OFDM,
 106         .frequency_min = 174000000,
 107         .frequency_max = 862000000,
 108         .frequency_stepsize = 166667,
 109         .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
 110                 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
 111                 FE_CAN_FEC_AUTO |
 112                 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
 113                 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
 114                 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
 115 };
 116
 117 struct cinergyt2 {
 118         struct dvb_demux demux;
 119         struct usb_device *udev;
 120         struct semaphore sem;
 121         struct dvb_adapter adapter;
 122         struct dvb_device *fedev;
 123         struct dmxdev dmxdev;
 124         struct dvb_net dvbnet;
 125
 126         int streaming;
 127         int sleeping;
 128
 129         struct dvbt_set_parameters_msg param;
 130         struct dvbt_get_status_msg status;
 131         struct work_struct query_work;
 132
 133         wait_queue_head_t poll_wq;
 134         int pending_fe_events;
 135
 136         void *streambuf;
 137         dma_addr_t streambuf_dmahandle;
 138         struct urb *stream_urb [STREAM_URB_COUNT];
 139
 140 #ifdef ENABLE_RC
 141         struct input_dev rc_input_dev;
 142         struct work_struct rc_query_work;
 143         int rc_input_event;
 144 #endif
 145 };
 146
 147 enum {
 148         CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
 149         CINERGYT2_RC_EVENT_TYPE_NEC  = 0x01,
 150         CINERGYT2_RC_EVENT_TYPE_RC5  = 0x02
 151 };
 152
 153 struct cinergyt2_rc_event {
 154         char type;
 155         uint32_t value;
 156 } __attribute__((packed));
 157
 158 static const uint32_t rc_keys [] = {
 159         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfe01eb04,     KEY_POWER,
 160         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfd02eb04,     KEY_1,
 161         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfc03eb04,     KEY_2,
 162         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfb04eb04,     KEY_3,
 163         CINERGYT2_RC_EVENT_TYPE_NEC,    0xfa05eb04,     KEY_4,
 164         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf906eb04,     KEY_5,
 165         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf807eb04,     KEY_6,
 166         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf708eb04,     KEY_7,
 167         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf609eb04,     KEY_8,
 168         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf50aeb04,     KEY_9,
 169         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf30ceb04,     KEY_0,
 170         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf40beb04,     KEY_VIDEO,
 171         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf20deb04,     KEY_REFRESH,
 172         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf10eeb04,     KEY_SELECT,
 173         CINERGYT2_RC_EVENT_TYPE_NEC,    0xf00feb04,     KEY_EPG,
 174         CINERGYT2_RC_EVENT_TYPE_NEC,    0xef10eb04,     KEY_UP,
 175         CINERGYT2_RC_EVENT_TYPE_NEC,    0xeb14eb04,     KEY_DOWN,
 176         CINERGYT2_RC_EVENT_TYPE_NEC,    0xee11eb04,     KEY_LEFT,
 177         CINERGYT2_RC_EVENT_TYPE_NEC,    0xec13eb04,     KEY_RIGHT,
 178         CINERGYT2_RC_EVENT_TYPE_NEC,    0xed12eb04,     KEY_OK,
 179         CINERGYT2_RC_EVENT_TYPE_NEC,    0xea15eb04,     KEY_TEXT,
 180         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe916eb04,     KEY_INFO,
 181         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe817eb04,     KEY_RED,
 182         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe718eb04,     KEY_GREEN,
 183         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe619eb04,     KEY_YELLOW,
 184         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe51aeb04,     KEY_BLUE,
 185         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe31ceb04,     KEY_VOLUMEUP,
 186         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe11eeb04,     KEY_VOLUMEDOWN,
 187         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe21deb04,     KEY_MUTE,
 188         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe41beb04,     KEY_CHANNELUP,
 189         CINERGYT2_RC_EVENT_TYPE_NEC,    0xe01feb04,     KEY_CHANNELDOWN,
 190         CINERGYT2_RC_EVENT_TYPE_NEC,    0xbf40eb04,     KEY_PAUSE,
 191         CINERGYT2_RC_EVENT_TYPE_NEC,    0xb34ceb04,     KEY_PLAY,
 192         CINERGYT2_RC_EVENT_TYPE_NEC,    0xa758eb04,     KEY_RECORD,
 193         CINERGYT2_RC_EVENT_TYPE_NEC,    0xab54eb04,     KEY_PREVIOUS,
 194         CINERGYT2_RC_EVENT_TYPE_NEC,    0xb748eb04,     KEY_STOP,
 195         CINERGYT2_RC_EVENT_TYPE_NEC,    0xa35ceb04,     KEY_NEXT
 196 };
 197
 198 static int cinergyt2_command (struct cinergyt2 *cinergyt2,
 199                               char *send_buf, int send_buf_len,
 200                               char *recv_buf, int recv_buf_len)
 201 {
 202         int actual_len;
 203         char dummy;
 204         int ret;
 205
 206         ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
 207                            send_buf, send_buf_len, &actual_len, 1000);
 208
 209         if (ret)
 210                 dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
 211
 212         if (!recv_buf)
 213                 recv_buf = &dummy;
 214
 215         ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
 216                            recv_buf, recv_buf_len, &actual_len, 1000);
 217
 218         if (ret)
 219                 dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
 220
 221         return ret ? ret : actual_len;
 222 }
 223
 224 static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
 225 {
 226         char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
 227         cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
 228 }
 229
 230 static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
 231 {
 232         char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
 233         cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
 234         cinergyt2->sleeping = sleep;
 235 }
 236
 237 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
 238
 239 static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
 240 {
 241         int err;
 242
 243         usb_fill_bulk_urb(urb,
 244                           cinergyt2->udev,
 245                           usb_rcvbulkpipe(cinergyt2->udev, 0x2),
 246                           urb->transfer_buffer,
 247                           STREAM_BUF_SIZE,
 248                           cinergyt2_stream_irq,
 249                           cinergyt2);
 250
 251         if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
 252                 dprintk(1, "urb submission failed (err = %i)!\n", err);
 253
 254         return err;
 255 }
 256
 257 static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
 258 {
 259         struct cinergyt2 *cinergyt2 = urb->context;
 260
 261         if (urb->actual_length > 0)
 262                 dvb_dmx_swfilter(&cinergyt2->demux,
 263                                  urb->transfer_buffer, urb->actual_length);
 264
 265         if (cinergyt2->streaming)
 266                 cinergyt2_submit_stream_urb(cinergyt2, urb);
 267 }
 268
 269 static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
 270 {
 271         int i;
 272
 273         for (i=0; i<STREAM_URB_COUNT; i++)
 274                 if (cinergyt2->stream_urb[i])
 275                         usb_free_urb(cinergyt2->stream_urb[i]);
 276
 277         pci_free_consistent(NULL, STREAM_URB_COUNT*STREAM_BUF_SIZE,
 278                             cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
 279 }
 280
 281 static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
 282 {
 283         int i;
 284
 285         cinergyt2->streambuf = pci_alloc_consistent(NULL,
 286                                               STREAM_URB_COUNT*STREAM_BUF_SIZE,
 287                                               &cinergyt2->streambuf_dmahandle);
 288         if (!cinergyt2->streambuf) {
 289                 dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
 290                 return -ENOMEM;
 291         }
 292
 293         memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
 294
 295         for (i=0; i<STREAM_URB_COUNT; i++) {
 296                 struct urb *urb;
 297
 298                 if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
 299                         dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
 300                         cinergyt2_free_stream_urbs(cinergyt2);
 301                         return -ENOMEM;
 302                 }
 303
 304                 urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
 305                 urb->transfer_buffer_length = STREAM_BUF_SIZE;
 306
 307                 cinergyt2->stream_urb[i] = urb;
 308         }
 309
 310         return 0;
 311 }
 312
 313 static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
 314 {
 315         int i;
 316
 317         cinergyt2_control_stream_transfer(cinergyt2, 0);
 318
 319         for (i=0; i<STREAM_URB_COUNT; i++)
 320                 if (cinergyt2->stream_urb[i])
 321                         usb_kill_urb(cinergyt2->stream_urb[i]);
 322 }
 323
 324 static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
 325 {
 326         int i, err;
 327
 328         for (i=0; i<STREAM_URB_COUNT; i++) {
 329                 if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
 330                         cinergyt2_stop_stream_xfer(cinergyt2);
 331                         dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
 332                         return err;
 333                 }
 334         }
 335
 336         cinergyt2_control_stream_transfer(cinergyt2, 1);
 337         return 0;
 338 }
 339
 340 static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 341 {
 342         struct dvb_demux *demux = dvbdmxfeed->demux;
 343         struct cinergyt2 *cinergyt2 = demux->priv;
 344
 345         if (down_interruptible(&cinergyt2->sem))
 346                 return -ERESTARTSYS;
 347
 348         if (cinergyt2->streaming == 0)
 349                 cinergyt2_start_stream_xfer(cinergyt2);
 350
 351         cinergyt2->streaming++;
 352         up(&cinergyt2->sem);
 353         return 0;
 354 }
 355
 356 static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 357 {
 358         struct dvb_demux *demux = dvbdmxfeed->demux;
 359         struct cinergyt2 *cinergyt2 = demux->priv;
 360
 361         if (down_interruptible(&cinergyt2->sem))
 362                 return -ERESTARTSYS;
 363
 364         if (--cinergyt2->streaming == 0)
 365                 cinergyt2_stop_stream_xfer(cinergyt2);
 366
 367         up(&cinergyt2->sem);
 368         return 0;
 369 }
 370
 371 /**
 372  *  convert linux-dvb frontend parameter set into TPS.
 373  *  See ETSI ETS-300744, section 4.6.2, table 9 for details.
 374  *
 375  *  This function is probably reusable and may better get placed in a support
 376  *  library.
 377  *
 378  *  We replace errornous fields by default TPS fields (the ones with value 0).
 379  */
 380 static uint16_t compute_tps (struct dvb_frontend_parameters *p)
 381 {
 382         struct dvb_ofdm_parameters *op = &p->u.ofdm;
 383         uint16_t tps = 0;
 384
 385         switch (op->code_rate_HP) {
 386                 case FEC_2_3:
 387                         tps |= (1 << 7);
 388                         break;
 389                 case FEC_3_4:
 390                         tps |= (2 << 7);
 391                         break;
 392                 case FEC_5_6:
 393                         tps |= (3 << 7);
 394                         break;
 395                 case FEC_7_8:
 396                         tps |= (4 << 7);
 397                         break;
 398                 case FEC_1_2:
 399                 case FEC_AUTO:
 400                 default:
 401                         /* tps |= (0 << 7) */;
 402         }
 403
 404         switch (op->code_rate_LP) {
 405                 case FEC_2_3:
 406                         tps |= (1 << 4);
 407                         break;
 408                 case FEC_3_4:
 409                         tps |= (2 << 4);
 410                         break;
 411                 case FEC_5_6:
 412                         tps |= (3 << 4);
 413                         break;
 414                 case FEC_7_8:
 415                         tps |= (4 << 4);
 416                         break;
 417                 case FEC_1_2:
 418                 case FEC_AUTO:
 419                 default:
 420                         /* tps |= (0 << 4) */;
 421         }
 422
 423         switch (op->constellation) {
 424                 case QAM_16:
 425                         tps |= (1 << 13);
 426                         break;
 427                 case QAM_64:
 428                         tps |= (2 << 13);
 429                         break;
 430                 case QPSK:
 431                 default:
 432                         /* tps |= (0 << 13) */;
 433         }
 434
 435         switch (op->transmission_mode) {
 436                 case TRANSMISSION_MODE_8K:
 437                         tps |= (1 << 0);
 438                         break;
 439                 case TRANSMISSION_MODE_2K:
 440                 default:
 441                         /* tps |= (0 << 0) */;
 442         }
 443
 444         switch (op->guard_interval) {
 445                 case GUARD_INTERVAL_1_16:
 446                         tps |= (1 << 2);
 447                         break;
 448                 case GUARD_INTERVAL_1_8:
 449                         tps |= (2 << 2);
 450                         break;
 451                 case GUARD_INTERVAL_1_4:
 452                         tps |= (3 << 2);
 453                         break;
 454                 case GUARD_INTERVAL_1_32:
 455                 default:
 456                         /* tps |= (0 << 2) */;
 457         }
 458
 459         switch (op->hierarchy_information) {
 460                 case HIERARCHY_1:
 461                         tps |= (1 << 10);
 462                         break;
 463                 case HIERARCHY_2:
 464                         tps |= (2 << 10);
 465                         break;
 466                 case HIERARCHY_4:
 467                         tps |= (3 << 10);
 468                         break;
 469                 case HIERARCHY_NONE:
 470                 default:
 471                         /* tps |= (0 << 10) */;
 472         }
 473
 474         return tps;
 475 }
 476
 477 static int cinergyt2_open (struct inode *inode, struct file *file)
 478 {
 479         struct dvb_device *dvbdev = file->private_data;
 480         struct cinergyt2 *cinergyt2 = dvbdev->priv;
 481         int err;
 482
 483         if ((err = dvb_generic_open(inode, file)))
 484                 return err;
 485
 486         if (down_interruptible(&cinergyt2->sem))
 487                 return -ERESTARTSYS;
 488
 489         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 490                 cinergyt2_sleep(cinergyt2, 0);
 491                 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
 492         }
 493
 494         up(&cinergyt2->sem);
 495         return 0;
 496 }
 497
 498 static int cinergyt2_release (struct inode *inode, struct file *file)
 499 {
 500         struct dvb_device *dvbdev = file->private_data;
 501         struct cinergyt2 *cinergyt2 = dvbdev->priv;
 502
 503         if (down_interruptible(&cinergyt2->sem))
 504                 return -ERESTARTSYS;
 505
 506         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 507                 cancel_delayed_work(&cinergyt2->query_work);
 508                 flush_scheduled_work();
 509                 cinergyt2_sleep(cinergyt2, 1);
 510         }
 511
 512         up(&cinergyt2->sem);
 513
 514         return dvb_generic_release(inode, file);
 515 }
 516
 517 static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
 518 {
 519         struct dvb_device *dvbdev = file->private_data;
 520         struct cinergyt2 *cinergyt2 = dvbdev->priv;
 521         poll_wait(file, &cinergyt2->poll_wq, wait);
 522         return (POLLIN | POLLRDNORM | POLLPRI);
 523 }
 524
 525
 526 static int cinergyt2_ioctl (struct inode *inode, struct file *file,
 527                      unsigned cmd, unsigned long arg)
 528 {
 529         struct dvb_device *dvbdev = file->private_data;
 530         struct cinergyt2 *cinergyt2 = dvbdev->priv;
 531         struct dvbt_get_status_msg *stat = &cinergyt2->status;
 532         fe_status_t status = 0;
 533
 534         switch (cmd) {
 535         case FE_GET_INFO:
 536                 return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
 537                                     sizeof(struct dvb_frontend_info));
 538
 539         case FE_READ_STATUS:
 540                 if (0xffff - le16_to_cpu(stat->gain) > 30)
 541                         status |= FE_HAS_SIGNAL;
 542                 if (stat->lock_bits & (1 << 6))
 543                         status |= FE_HAS_LOCK;
 544                 if (stat->lock_bits & (1 << 5))
 545                         status |= FE_HAS_SYNC;
 546                 if (stat->lock_bits & (1 << 4))
 547                         status |= FE_HAS_CARRIER;
 548                 if (stat->lock_bits & (1 << 1))
 549                         status |= FE_HAS_VITERBI;
 550
 551                 return copy_to_user((void  __user*) arg, &status, sizeof(status));
 552
 553         case FE_READ_BER:
 554                 return put_user(le32_to_cpu(stat->viterbi_error_rate),
 555                                 (__u32 __user *) arg);
 556
 557         case FE_READ_SIGNAL_STRENGTH:
 558                 return put_user(0xffff - le16_to_cpu(stat->gain),
 559                                 (__u16 __user *) arg);
 560
 561         case FE_READ_SNR:
 562                 return put_user((stat->snr << 8) | stat->snr,
 563                                 (__u16 __user *) arg);
 564
 565         case FE_READ_UNCORRECTED_BLOCKS:
 566                 /* UNC are already converted to host byte order... */
 567                 return put_user(stat->uncorrected_block_count,
 568                                 (__u32 __user *) arg);
 569
 570         case FE_SET_FRONTEND:
 571         {
 572                 struct dvbt_set_parameters_msg *param = &cinergyt2->param;
 573                 struct dvb_frontend_parameters p;
 574                 int err;
 575
 576                 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 577                         return -EPERM;
 578
 579                 if (copy_from_user(&p, (void  __user*) arg, sizeof(p)))
 580                         return -EFAULT;
 581
 582                 if (down_interruptible(&cinergyt2->sem))
 583                         return -ERESTARTSYS;
 584
 585                 param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
 586                 param->tps = cpu_to_le16(compute_tps(&p));
 587                 param->freq = cpu_to_le32(p.frequency / 1000);
 588                 param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
 589
 590                 stat->lock_bits = 0;
 591                 cinergyt2->pending_fe_events++;
 592                 wake_up_interruptible(&cinergyt2->poll_wq);
 593
 594                 err = cinergyt2_command(cinergyt2,
 595                                         (char *) param, sizeof(*param),
 596                                         NULL, 0);
 597
 598                 up(&cinergyt2->sem);
 599
 600                 return (err < 0) ? err : 0;
 601         }
 602
 603         case FE_GET_FRONTEND:
 604                 /**
 605                  *  trivial to implement (see struct dvbt_get_status_msg).
 606                  *  equivalent to FE_READ ioctls, but needs
 607                  *  TPS -> linux-dvb parameter set conversion. Feel free
 608                  *  to implement this and send us a patch if you need this
 609                  *  functionality.
 610                  */
 611                 break;
 612
 613         case FE_GET_EVENT:
 614         {
 615                 /**
 616                  *  for now we only fill the status field. the parameters
 617                  *  are trivial to fill as soon FE_GET_FRONTEND is done.
 618                  */
 619                 struct dvb_frontend_event __user *e = (void __user *) arg;
 620                 if (cinergyt2->pending_fe_events == 0) {
 621                         if (file->f_flags & O_NONBLOCK)
 622                                 return -EWOULDBLOCK;
 623                         wait_event_interruptible(cinergyt2->poll_wq,
 624                                                  cinergyt2->pending_fe_events > 0);
 625                 }
 626                 cinergyt2->pending_fe_events = 0;
 627                 return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
 628                                         (unsigned long) &e->status);
 629         }
 630
 631         default:
 632                 ;
 633         }
 634
 635         return -EINVAL;
 636 }
 637
 638 static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
 639 {
 640         struct dvb_device *dvbdev = file->private_data;
 641         struct cinergyt2 *cinergyt2 = dvbdev->priv;
 642         int ret = 0;
 643
 644         lock_kernel();
 645
 646         if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
 647                 ret = -EPERM;
 648                 goto bailout;
 649         }
 650
 651         if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
 652                 ret = -EINVAL;
 653                 goto bailout;
 654         }
 655
 656         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 657         vma->vm_file = file;
 658
 659         ret = remap_pfn_range(vma, vma->vm_start,
 660                               virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
 661                               vma->vm_end - vma->vm_start,
 662                               vma->vm_page_prot) ? -EAGAIN : 0;
 663 bailout:
 664         unlock_kernel();
 665         return ret;
 666 }
 667
 668 static struct file_operations cinergyt2_fops = {
 669         .owner          = THIS_MODULE,
 670         .ioctl          = cinergyt2_ioctl,
 671         .poll           = cinergyt2_poll,
 672         .open           = cinergyt2_open,
 673         .release        = cinergyt2_release,
 674         .mmap           = cinergyt2_mmap
 675 };
 676
 677 static struct dvb_device cinergyt2_fe_template = {
 678         .users = ~0,
 679         .writers = 1,
 680         .readers = (~0)-1,
 681         .fops = &cinergyt2_fops
 682 };
 683
 684 #ifdef ENABLE_RC
 685 static void cinergyt2_query_rc (void *data)
 686 {
 687         struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
 688         char buf [1] = { CINERGYT2_EP1_GET_RC_EVENTS };
 689         struct cinergyt2_rc_event rc_events[12];
 690         int n, len;
 691
 692         if (down_interruptible(&cinergyt2->sem))
 693                 return;
 694
 695         len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
 696                              (char *) rc_events, sizeof(rc_events));
 697
 698         for (n=0; len>0 && n<(len/sizeof(rc_events[0])); n++) {
 699                 int i;
 700
 701 /*              dprintk(1,"rc_events[%d].value = %x, type=%x\n",n,le32_to_cpu(rc_events[n].value),rc_events[n].type);*/
 702
 703                 if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
 704                     rc_events[n].value == ~0)
 705                 {
 706                         /**
 707                          * keyrepeat bit. If we would handle this properly
 708                          * we would need to emit down events as long the
 709                          * keyrepeat goes, a up event if no further
 710                          * repeat bits occur. Would need a timer to implement
 711                          * and no other driver does this, so we simply
 712                          * emit the last key up/down sequence again.
 713                          */
 714                 } else {
 715                         cinergyt2->rc_input_event = KEY_MAX;
 716                         for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3) {
 717                                 if (rc_keys[i+0] == rc_events[n].type &&
 718                                     rc_keys[i+1] == le32_to_cpu(rc_events[n].value))
 719                                 {
 720                                         cinergyt2->rc_input_event = rc_keys[i+2];
 721                                         break;
 722                                 }
 723                         }
 724                 }
 725
 726                 if (cinergyt2->rc_input_event != KEY_MAX) {
 727                         input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 1);
 728                         input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 0);
 729                         input_sync(&cinergyt2->rc_input_dev);
 730                 }
 731         }
 732
 733         schedule_delayed_work(&cinergyt2->rc_query_work,
 734                               msecs_to_jiffies(RC_QUERY_INTERVAL));
 735
 736         up(&cinergyt2->sem);
 737 }
 738 #endif
 739
 740 static void cinergyt2_query (void *data)
 741 {
 742         struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
 743         char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
 744         struct dvbt_get_status_msg *s = &cinergyt2->status;
 745         uint8_t lock_bits;
 746         uint32_t unc;
 747
 748         if (down_interruptible(&cinergyt2->sem))
 749                 return;
 750
 751         unc = s->uncorrected_block_count;
 752         lock_bits = s->lock_bits;
 753
 754         cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
 755
 756         unc += le32_to_cpu(s->uncorrected_block_count);
 757         s->uncorrected_block_count = unc;
 758
 759         if (lock_bits != s->lock_bits) {
 760                 wake_up_interruptible(&cinergyt2->poll_wq);
 761                 cinergyt2->pending_fe_events++;
 762         }
 763
 764         schedule_delayed_work(&cinergyt2->query_work,
 765                               msecs_to_jiffies(QUERY_INTERVAL));
 766
 767         up(&cinergyt2->sem);
 768 }
 769
 770 static int cinergyt2_probe (struct usb_interface *intf,
 771                   const struct usb_device_id *id)
 772 {
 773         struct cinergyt2 *cinergyt2;
 774         int i, err;
 775
 776         if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
 777                 dprintk(1, "out of memory?!?\n");
 778                 return -ENOMEM;
 779         }
 780
 781         memset (cinergyt2, 0, sizeof (struct cinergyt2));
 782         usb_set_intfdata (intf, (void *) cinergyt2);
 783
 784         init_MUTEX(&cinergyt2->sem);
 785         init_waitqueue_head (&cinergyt2->poll_wq);
 786         INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
 787
 788         cinergyt2->udev = interface_to_usbdev(intf);
 789         cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
 790
 791         if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
 792                 dprintk(1, "unable to allocate stream urbs\n");
 793                 kfree(cinergyt2);
 794                 return -ENOMEM;
 795         }
 796
 797         dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
 798
 799         cinergyt2->demux.priv = cinergyt2;
 800         cinergyt2->demux.filternum = 256;
 801         cinergyt2->demux.feednum = 256;
 802         cinergyt2->demux.start_feed = cinergyt2_start_feed;
 803         cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
 804         cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
 805                                             DMX_SECTION_FILTERING |
 806                                             DMX_MEMORY_BASED_FILTERING;
 807
 808         if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
 809                 dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
 810                 goto bailout;
 811         }
 812
 813         cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
 814         cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
 815         cinergyt2->dmxdev.capabilities = 0;
 816
 817         if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
 818                 dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
 819                 goto bailout;
 820         }
 821
 822         if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
 823                 dprintk(1, "dvb_net_init() failed!\n");
 824
 825         dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
 826                             &cinergyt2_fe_template, cinergyt2,
 827                             DVB_DEVICE_FRONTEND);
 828
 829 #ifdef ENABLE_RC
 830         init_input_dev(&cinergyt2->rc_input_dev);
 831
 832         cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY);
 833         cinergyt2->rc_input_dev.keycodesize = sizeof(unsigned char);
 834         cinergyt2->rc_input_dev.keycodemax = KEY_MAX;
 835         cinergyt2->rc_input_dev.name = DRIVER_NAME " remote control";
 836
 837         for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3)
 838                 set_bit(rc_keys[i+2], cinergyt2->rc_input_dev.keybit);
 839
 840         input_register_device(&cinergyt2->rc_input_dev);
 841
 842         cinergyt2->rc_input_event = KEY_MAX;
 843
 844         INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
 845         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
 846 #endif
 847         return 0;
 848
 849 bailout:
 850         dvb_dmxdev_release(&cinergyt2->dmxdev);
 851         dvb_dmx_release(&cinergyt2->demux);
 852         dvb_unregister_adapter (&cinergyt2->adapter);
 853         cinergyt2_free_stream_urbs (cinergyt2);
 854         kfree(cinergyt2);
 855         return -ENOMEM;
 856 }
 857
 858 static void cinergyt2_disconnect (struct usb_interface *intf)
 859 {
 860         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 861
 862         if (down_interruptible(&cinergyt2->sem))
 863                 return;
 864
 865 #ifdef ENABLE_RC
 866         cancel_delayed_work(&cinergyt2->rc_query_work);
 867         flush_scheduled_work();
 868         input_unregister_device(&cinergyt2->rc_input_dev);
 869 #endif
 870
 871         cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
 872         dvb_net_release(&cinergyt2->dvbnet);
 873         dvb_dmxdev_release(&cinergyt2->dmxdev);
 874         dvb_dmx_release(&cinergyt2->demux);
 875         dvb_unregister_device(cinergyt2->fedev);
 876         dvb_unregister_adapter(&cinergyt2->adapter);
 877
 878         cinergyt2_free_stream_urbs(cinergyt2);
 879         up(&cinergyt2->sem);
 880         kfree(cinergyt2);
 881 }
 882
 883 static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
 884 {
 885         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 886
 887         if (down_interruptible(&cinergyt2->sem))
 888                 return -ERESTARTSYS;
 889
 890         if (state.event > PM_EVENT_ON) {
 891                 struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 892 #ifdef ENABLE_RC
 893                 cancel_delayed_work(&cinergyt2->rc_query_work);
 894 #endif
 895                 cancel_delayed_work(&cinergyt2->query_work);
 896                 if (cinergyt2->streaming)
 897                         cinergyt2_stop_stream_xfer(cinergyt2);
 898                 flush_scheduled_work();
 899                 cinergyt2_sleep(cinergyt2, 1);
 900         }
 901
 902         up(&cinergyt2->sem);
 903         return 0;
 904 }
 905
 906 static int cinergyt2_resume (struct usb_interface *intf)
 907 {
 908         struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 909         struct dvbt_set_parameters_msg *param = &cinergyt2->param;
 910
 911         if (down_interruptible(&cinergyt2->sem))
 912                 return -ERESTARTSYS;
 913
 914         if (!cinergyt2->sleeping) {
 915                 cinergyt2_sleep(cinergyt2, 0);
 916                 cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
 917                 if (cinergyt2->streaming)
 918                         cinergyt2_start_stream_xfer(cinergyt2);
 919                 schedule_delayed_work(&cinergyt2->query_work, HZ/2);
 920         }
 921
 922 #ifdef ENABLE_RC
 923         schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
 924 #endif
 925         up(&cinergyt2->sem);
 926         return 0;
 927 }
 928
 929 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
 930         { USB_DEVICE(0x0ccd, 0x0038) },
 931         { 0 }
 932 };
 933
 934 MODULE_DEVICE_TABLE(usb, cinergyt2_table);
 935
 936 static struct usb_driver cinergyt2_driver = {
 937         .owner  = THIS_MODULE,
 938         .name   = "cinergyT2",
 939         .probe  = cinergyt2_probe,
 940         .disconnect     = cinergyt2_disconnect,
 941         .suspend        = cinergyt2_suspend,
 942         .resume         = cinergyt2_resume,
 943         .id_table       = cinergyt2_table
 944 };
 945
 946 static int __init cinergyt2_init (void)
 947 {
 948         int err;
 949
 950         if ((err = usb_register(&cinergyt2_driver)) < 0)
 951                 dprintk(1, "usb_register() failed! (err %i)\n", err);
 952
 953         return err;
 954 }
 955
 956 static void __exit cinergyt2_exit (void)
 957 {
 958         usb_deregister(&cinergyt2_driver);
 959 }
 960
 961 module_init (cinergyt2_init);
 962 module_exit (cinergyt2_exit);
 963
 964 MODULE_LICENSE("GPL");
 965 MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
 966