drivers/media/dvb/dvb-usb/dib0700_core.c

   1 /* Linux driver for devices based on the DiBcom DiB0700 USB bridge
   2  *
   3  *      This program is free software; you can redistribute it and/or modify it
   4  *      under the terms of the GNU General Public License as published by the Free
   5  *      Software Foundation, version 2.
   6  *
   7  *  Copyright (C) 2005-6 DiBcom, SA
   8  */
   9 #include "dib0700.h"
  10
  11 /* debug */
  12 int dvb_usb_dib0700_debug;
  13 module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
  14 MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
  15
  16 int dvb_usb_dib0700_ir_proto = 1;
  17 module_param(dvb_usb_dib0700_ir_proto, int, 0644);
  18 MODULE_PARM_DESC(dvb_usb_dib0700_ir_proto, "set ir protocol (0=NEC, 1=RC5 (default), 2=RC6).");
  19
  20 static int nb_packet_buffer_size = 21;
  21 module_param(nb_packet_buffer_size, int, 0644);
  22 MODULE_PARM_DESC(nb_packet_buffer_size,
  23         "Set the dib0700 driver data buffer size. This parameter "
  24         "corresponds to the number of TS packets. The actual size of "
  25         "the data buffer corresponds to this parameter "
  26         "multiplied by 188 (default: 21)");
  27
  28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  29
  30
  31 int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
  32                         u32 *romversion, u32 *ramversion, u32 *fwtype)
  33 {
  34         u8 b[16];
  35         int ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
  36                                   REQUEST_GET_VERSION,
  37                                   USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
  38                                   b, sizeof(b), USB_CTRL_GET_TIMEOUT);
  39         if (hwversion != NULL)
  40                 *hwversion  = (b[0] << 24)  | (b[1] << 16)  | (b[2] << 8)  | b[3];
  41         if (romversion != NULL)
  42                 *romversion = (b[4] << 24)  | (b[5] << 16)  | (b[6] << 8)  | b[7];
  43         if (ramversion != NULL)
  44                 *ramversion = (b[8] << 24)  | (b[9] << 16)  | (b[10] << 8) | b[11];
  45         if (fwtype != NULL)
  46                 *fwtype     = (b[12] << 24) | (b[13] << 16) | (b[14] << 8) | b[15];
  47         return ret;
  48 }
  49
  50 /* expecting rx buffer: request data[0] data[1] ... data[2] */
  51 static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
  52 {
  53         int status;
  54
  55         deb_data(">>> ");
  56         debug_dump(tx, txlen, deb_data);
  57
  58         status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
  59                 tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,
  60                 USB_CTRL_GET_TIMEOUT);
  61
  62         if (status != txlen)
  63                 deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);
  64
  65         return status < 0 ? status : 0;
  66 }
  67
  68 /* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
  69 int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
  70 {
  71         u16 index, value;
  72         int status;
  73
  74         if (txlen < 2) {
  75                 err("tx buffer length is smaller than 2. Makes no sense.");
  76                 return -EINVAL;
  77         }
  78         if (txlen > 4) {
  79                 err("tx buffer length is larger than 4. Not supported.");
  80                 return -EINVAL;
  81         }
  82
  83         deb_data(">>> ");
  84         debug_dump(tx,txlen,deb_data);
  85
  86         value = ((txlen - 2) << 8) | tx[1];
  87         index = 0;
  88         if (txlen > 2)
  89                 index |= (tx[2] << 8);
  90         if (txlen > 3)
  91                 index |= tx[3];
  92
  93         status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
  94                         USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,
  95                         USB_CTRL_GET_TIMEOUT);
  96
  97         if (status < 0)
  98                 deb_info("ep 0 read error (status = %d)\n",status);
  99
 100         deb_data("<<< ");
 101         debug_dump(rx, rxlen, deb_data);
 102
 103         return status; /* length in case of success */
 104 }
 105
 106 int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
 107 {
 108         u8 buf[3] = { REQUEST_SET_GPIO, gpio, ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6) };
 109         return dib0700_ctrl_wr(d, buf, sizeof(buf));
 110 }
 111
 112 static int dib0700_set_usb_xfer_len(struct dvb_usb_device *d, u16 nb_ts_packets)
 113 {
 114         struct dib0700_state *st = d->priv;
 115         u8 b[3];
 116         int ret;
 117
 118         if (st->fw_version >= 0x10201) {
 119                 b[0] = REQUEST_SET_USB_XFER_LEN;
 120                 b[1] = (nb_ts_packets >> 8) & 0xff;
 121                 b[2] = nb_ts_packets & 0xff;
 122
 123                 deb_info("set the USB xfer len to %i Ts packet\n", nb_ts_packets);
 124
 125                 ret = dib0700_ctrl_wr(d, b, sizeof(b));
 126         } else {
 127                 deb_info("this firmware does not allow to change the USB xfer len\n");
 128                 ret = -EIO;
 129         }
 130
 131         return ret;
 132 }
 133
 134 /*
 135  * I2C master xfer function (supported in 1.20 firmware)
 136  */
 137 static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
 138                                 int num)
 139 {
 140         /* The new i2c firmware messages are more reliable and in particular
 141            properly support i2c read calls not preceded by a write */
 142
 143         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 144         uint8_t bus_mode = 1;  /* 0=eeprom bus, 1=frontend bus */
 145         uint8_t gen_mode = 0; /* 0=master i2c, 1=gpio i2c */
 146         uint8_t en_start = 0;
 147         uint8_t en_stop = 0;
 148         uint8_t buf[255]; /* TBV: malloc ? */
 149         int result, i;
 150
 151         /* Ensure nobody else hits the i2c bus while we're sending our
 152            sequence of messages, (such as the remote control thread) */
 153         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 154                 return -EAGAIN;
 155
 156         for (i = 0; i < num; i++) {
 157                 if (i == 0) {
 158                         /* First message in the transaction */
 159                         en_start = 1;
 160                 } else if (!(msg[i].flags & I2C_M_NOSTART)) {
 161                         /* Device supports repeated-start */
 162                         en_start = 1;
 163                 } else {
 164                         /* Not the first packet and device doesn't support
 165                            repeated start */
 166                         en_start = 0;
 167                 }
 168                 if (i == (num - 1)) {
 169                         /* Last message in the transaction */
 170                         en_stop = 1;
 171                 }
 172
 173                 if (msg[i].flags & I2C_M_RD) {
 174                         /* Read request */
 175                         u16 index, value;
 176                         uint8_t i2c_dest;
 177
 178                         i2c_dest = (msg[i].addr << 1);
 179                         value = ((en_start << 7) | (en_stop << 6) |
 180                                  (msg[i].len & 0x3F)) << 8 | i2c_dest;
 181                         /* I2C ctrl + FE bus; */
 182                         index = ((gen_mode << 6) & 0xC0) |
 183                                 ((bus_mode << 4) & 0x30);
 184
 185                         result = usb_control_msg(d->udev,
 186                                                  usb_rcvctrlpipe(d->udev, 0),
 187                                                  REQUEST_NEW_I2C_READ,
 188                                                  USB_TYPE_VENDOR | USB_DIR_IN,
 189                                                  value, index, msg[i].buf,
 190                                                  msg[i].len,
 191                                                  USB_CTRL_GET_TIMEOUT);
 192                         if (result < 0) {
 193                                 err("i2c read error (status = %d)\n", result);
 194                                 break;
 195                         }
 196
 197                         deb_data("<<< ");
 198                         debug_dump(msg[i].buf, msg[i].len, deb_data);
 199
 200                 } else {
 201                         /* Write request */
 202                         buf[0] = REQUEST_NEW_I2C_WRITE;
 203                         buf[1] = msg[i].addr << 1;
 204                         buf[2] = (en_start << 7) | (en_stop << 6) |
 205                                 (msg[i].len & 0x3F);
 206                         /* I2C ctrl + FE bus; */
 207                         buf[3] = ((gen_mode << 6) & 0xC0) |
 208                                  ((bus_mode << 4) & 0x30);
 209                         /* The Actual i2c payload */
 210                         memcpy(&buf[4], msg[i].buf, msg[i].len);
 211
 212                         deb_data(">>> ");
 213                         debug_dump(buf, msg[i].len + 4, deb_data);
 214
 215                         result = usb_control_msg(d->udev,
 216                                                  usb_sndctrlpipe(d->udev, 0),
 217                                                  REQUEST_NEW_I2C_WRITE,
 218                                                  USB_TYPE_VENDOR | USB_DIR_OUT,
 219                                                  0, 0, buf, msg[i].len + 4,
 220                                                  USB_CTRL_GET_TIMEOUT);
 221                         if (result < 0) {
 222                                 err("i2c write error (status = %d)\n", result);
 223                                 break;
 224                         }
 225                 }
 226         }
 227         mutex_unlock(&d->i2c_mutex);
 228         return i;
 229 }
 230
 231 /*
 232  * I2C master xfer function (pre-1.20 firmware)
 233  */
 234 static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
 235                                    struct i2c_msg *msg, int num)
 236 {
 237         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 238         int i,len;
 239         u8 buf[255];
 240
 241         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 242                 return -EAGAIN;
 243
 244         for (i = 0; i < num; i++) {
 245                 /* fill in the address */
 246                 buf[1] = msg[i].addr << 1;
 247                 /* fill the buffer */
 248                 memcpy(&buf[2], msg[i].buf, msg[i].len);
 249
 250                 /* write/read request */
 251                 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
 252                         buf[0] = REQUEST_I2C_READ;
 253                         buf[1] |= 1;
 254
 255                         /* special thing in the current firmware: when length is zero the read-failed */
 256                         if ((len = dib0700_ctrl_rd(d, buf, msg[i].len + 2, msg[i+1].buf, msg[i+1].len)) <= 0) {
 257                                 deb_info("I2C read failed on address 0x%02x\n",
 258                                          msg[i].addr);
 259                                 break;
 260                         }
 261
 262                         msg[i+1].len = len;
 263
 264                         i++;
 265                 } else {
 266                         buf[0] = REQUEST_I2C_WRITE;
 267                         if (dib0700_ctrl_wr(d, buf, msg[i].len + 2) < 0)
 268                                 break;
 269                 }
 270         }
 271
 272         mutex_unlock(&d->i2c_mutex);
 273         return i;
 274 }
 275
 276 static int dib0700_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
 277                             int num)
 278 {
 279         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 280         struct dib0700_state *st = d->priv;
 281
 282         if (st->fw_use_new_i2c_api == 1) {
 283                 /* User running at least fw 1.20 */
 284                 return dib0700_i2c_xfer_new(adap, msg, num);
 285         } else {
 286                 /* Use legacy calls */
 287                 return dib0700_i2c_xfer_legacy(adap, msg, num);
 288         }
 289 }
 290
 291 static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
 292 {
 293         return I2C_FUNC_I2C;
 294 }
 295
 296 struct i2c_algorithm dib0700_i2c_algo = {
 297         .master_xfer   = dib0700_i2c_xfer,
 298         .functionality = dib0700_i2c_func,
 299 };
 300
 301 int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
 302                         struct dvb_usb_device_description **desc, int *cold)
 303 {
 304         u8 b[16];
 305         s16 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev,0),
 306                 REQUEST_GET_VERSION, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);
 307
 308         deb_info("FW GET_VERSION length: %d\n",ret);
 309
 310         *cold = ret <= 0;
 311
 312         deb_info("cold: %d\n", *cold);
 313         return 0;
 314 }
 315
 316 static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
 317         u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
 318         u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
 319 {
 320         u8 b[10];
 321         b[0] = REQUEST_SET_CLOCK;
 322         b[1] = (en_pll << 7) | (pll_src << 6) | (pll_range << 5) | (clock_gpio3 << 4);
 323         b[2] = (pll_prediv >> 8)  & 0xff; // MSB
 324         b[3] =  pll_prediv        & 0xff; // LSB
 325         b[4] = (pll_loopdiv >> 8) & 0xff; // MSB
 326         b[5] =  pll_loopdiv       & 0xff; // LSB
 327         b[6] = (free_div >> 8)    & 0xff; // MSB
 328         b[7] =  free_div          & 0xff; // LSB
 329         b[8] = (dsuScaler >> 8)   & 0xff; // MSB
 330         b[9] =  dsuScaler         & 0xff; // LSB
 331
 332         return dib0700_ctrl_wr(d, b, 10);
 333 }
 334
 335 int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
 336 {
 337         switch (clk_MHz) {
 338                 case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
 339                 default: return -EINVAL;
 340         }
 341         return 0;
 342 }
 343
 344 static int dib0700_jumpram(struct usb_device *udev, u32 address)
 345 {
 346         int ret, actlen;
 347         u8 buf[8] = { REQUEST_JUMPRAM, 0, 0, 0,
 348                 (address >> 24) & 0xff,
 349                 (address >> 16) & 0xff,
 350                 (address >> 8)  & 0xff,
 351                  address        & 0xff };
 352
 353         if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
 354                 deb_fw("jumpram to 0x%x failed\n",address);
 355                 return ret;
 356         }
 357         if (actlen != 8) {
 358                 deb_fw("jumpram to 0x%x failed\n",address);
 359                 return -EIO;
 360         }
 361         return 0;
 362 }
 363
 364 int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
 365 {
 366         struct hexline hx;
 367         int pos = 0, ret, act_len, i, adap_num;
 368         u8 b[16];
 369         u32 fw_version;
 370
 371         u8 buf[260];
 372
 373         while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
 374                 deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",
 375                                 hx.addr, hx.len, hx.chk);
 376
 377                 buf[0] = hx.len;
 378                 buf[1] = (hx.addr >> 8) & 0xff;
 379                 buf[2] =  hx.addr       & 0xff;
 380                 buf[3] = hx.type;
 381                 memcpy(&buf[4],hx.data,hx.len);
 382                 buf[4+hx.len] = hx.chk;
 383
 384                 ret = usb_bulk_msg(udev,
 385                         usb_sndbulkpipe(udev, 0x01),
 386                         buf,
 387                         hx.len + 5,
 388                         &act_len,
 389                         1000);
 390
 391                 if (ret < 0) {
 392                         err("firmware download failed at %d with %d",pos,ret);
 393                         return ret;
 394                 }
 395         }
 396
 397         if (ret == 0) {
 398                 /* start the firmware */
 399                 if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
 400                         info("firmware started successfully.");
 401                         msleep(500);
 402                 }
 403         } else
 404                 ret = -EIO;
 405
 406         /* the number of ts packet has to be at least 1 */
 407         if (nb_packet_buffer_size < 1)
 408                 nb_packet_buffer_size = 1;
 409
 410         /* get the fimware version */
 411         usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 412                                   REQUEST_GET_VERSION,
 413                                   USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 414                                   b, sizeof(b), USB_CTRL_GET_TIMEOUT);
 415         fw_version = (b[8] << 24) | (b[9] << 16) | (b[10] << 8) | b[11];
 416
 417         /* set the buffer size - DVB-USB is allocating URB buffers
 418          * only after the firwmare download was successful */
 419         for (i = 0; i < dib0700_device_count; i++) {
 420                 for (adap_num = 0; adap_num < dib0700_devices[i].num_adapters;
 421                                 adap_num++) {
 422                         if (fw_version >= 0x10201) {
 423                                 dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = 188*nb_packet_buffer_size;
 424                         } else {
 425                                 /* for fw version older than 1.20.1,
 426                                  * the buffersize has to be n times 512 */
 427                                 dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = ((188*nb_packet_buffer_size+188/2)/512)*512;
 428                                 if (dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize < 512)
 429                                         dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = 512;
 430                         }
 431                 }
 432         }
 433
 434         return ret;
 435 }
 436
 437 int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 438 {
 439         struct dib0700_state *st = adap->dev->priv;
 440         u8 b[4];
 441         int ret;
 442
 443         if ((onoff != 0) && (st->fw_version >= 0x10201)) {
 444                 /* for firmware later than 1.20.1,
 445                  * the USB xfer length can be set  */
 446                 ret = dib0700_set_usb_xfer_len(adap->dev,
 447                         st->nb_packet_buffer_size);
 448                 if (ret < 0) {
 449                         deb_info("can not set the USB xfer len\n");
 450                         return ret;
 451                 }
 452         }
 453
 454         b[0] = REQUEST_ENABLE_VIDEO;
 455         b[1] = (onoff << 4) | 0x00; /* this bit gives a kind of command, rather than enabling something or not */
 456
 457         if (st->disable_streaming_master_mode == 1)
 458                 b[2] = 0x00;
 459         else
 460                 b[2] = 0x01 << 4; /* Master mode */
 461
 462         b[3] = 0x00;
 463
 464         deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);
 465
 466         if (onoff)
 467                 st->channel_state |=   1 << adap->id;
 468         else
 469                 st->channel_state &= ~(1 << adap->id);
 470
 471         b[2] |= st->channel_state;
 472
 473         deb_info("data for streaming: %x %x\n", b[1], b[2]);
 474
 475         return dib0700_ctrl_wr(adap->dev, b, 4);
 476 }
 477
 478 /* Number of keypresses to ignore before start repeating */
 479 #define RC_REPEAT_DELAY_V1_20 10
 480
 481 /* This is the structure of the RC response packet starting in firmware 1.20 */
 482 struct dib0700_rc_response {
 483         u8 report_id;
 484         u8 data_state;
 485         u16 system;
 486         u8 data;
 487         u8 not_data;
 488 };
 489 #define RC_MSG_SIZE_V1_20 6
 490
 491 static void dib0700_rc_urb_completion(struct urb *purb)
 492 {
 493         struct dvb_usb_device *d = purb->context;
 494         struct dvb_usb_rc_key *keymap;
 495         struct dib0700_state *st;
 496         struct dib0700_rc_response poll_reply;
 497         u8 *buf;
 498         int found = 0;
 499         u32 event;
 500         int state;
 501         int i;
 502
 503         deb_info("%s()\n", __func__);
 504         if (d == NULL)
 505                 return;
 506
 507         if (d->rc_input_dev == NULL) {
 508                 /* This will occur if disable_rc_polling=1 */
 509                 usb_free_urb(purb);
 510                 return;
 511         }
 512
 513         keymap = d->props.rc_key_map;
 514         st = d->priv;
 515         buf = (u8 *)purb->transfer_buffer;
 516
 517         if (purb->status < 0) {
 518                 deb_info("discontinuing polling\n");
 519                 usb_free_urb(purb);
 520                 return;
 521         }
 522
 523         if (purb->actual_length != RC_MSG_SIZE_V1_20) {
 524                 deb_info("malformed rc msg size=%d\n", purb->actual_length);
 525                 goto resubmit;
 526         }
 527
 528         /* Set initial results in case we exit the function early */
 529         event = 0;
 530         state = REMOTE_NO_KEY_PRESSED;
 531
 532         deb_data("IR raw %02X %02X %02X %02X %02X %02X (len %d)\n", buf[0],
 533                  buf[1], buf[2], buf[3], buf[4], buf[5], purb->actual_length);
 534
 535         switch (dvb_usb_dib0700_ir_proto) {
 536         case 0:
 537                 /* NEC Protocol */
 538                 poll_reply.report_id  = 0;
 539                 poll_reply.data_state = 1;
 540                 poll_reply.system     = buf[2];
 541                 poll_reply.data       = buf[4];
 542                 poll_reply.not_data   = buf[5];
 543
 544                 /* NEC protocol sends repeat code as 0 0 0 FF */
 545                 if ((poll_reply.system == 0x00) && (poll_reply.data == 0x00)
 546                     && (poll_reply.not_data == 0xff)) {
 547                         poll_reply.data_state = 2;
 548                         break;
 549                 }
 550                 break;
 551         default:
 552                 /* RC5 Protocol */
 553                 poll_reply.report_id  = buf[0];
 554                 poll_reply.data_state = buf[1];
 555                 poll_reply.system     = (buf[2] << 8) | buf[3];
 556                 poll_reply.data       = buf[4];
 557                 poll_reply.not_data   = buf[5];
 558                 break;
 559         }
 560
 561         if ((poll_reply.data + poll_reply.not_data) != 0xff) {
 562                 /* Key failed integrity check */
 563                 err("key failed integrity check: %04x %02x %02x",
 564                     poll_reply.system,
 565                     poll_reply.data, poll_reply.not_data);
 566                 goto resubmit;
 567         }
 568
 569         deb_data("rid=%02x ds=%02x sm=%04x d=%02x nd=%02x\n",
 570                  poll_reply.report_id, poll_reply.data_state,
 571                  poll_reply.system, poll_reply.data, poll_reply.not_data);
 572
 573         /* Find the key in the map */
 574         for (i = 0; i < d->props.rc_key_map_size; i++) {
 575                 if (rc5_custom(&keymap[i]) == (poll_reply.system & 0xff) &&
 576                     rc5_data(&keymap[i]) == poll_reply.data) {
 577                         event = keymap[i].event;
 578                         found = 1;
 579                         break;
 580                 }
 581         }
 582
 583         if (found == 0) {
 584                 err("Unknown remote controller key: %04x %02x %02x",
 585                     poll_reply.system, poll_reply.data, poll_reply.not_data);
 586                 d->last_event = 0;
 587                 goto resubmit;
 588         }
 589
 590         if (poll_reply.data_state == 1) {
 591                 /* New key hit */
 592                 st->rc_counter = 0;
 593                 event = keymap[i].event;
 594                 state = REMOTE_KEY_PRESSED;
 595                 d->last_event = keymap[i].event;
 596         } else if (poll_reply.data_state == 2) {
 597                 /* Key repeated */
 598                 st->rc_counter++;
 599
 600                 /* prevents unwanted double hits */
 601                 if (st->rc_counter > RC_REPEAT_DELAY_V1_20) {
 602                         event = d->last_event;
 603                         state = REMOTE_KEY_PRESSED;
 604                         st->rc_counter = RC_REPEAT_DELAY_V1_20;
 605                 }
 606         } else {
 607                 err("Unknown data state [%d]", poll_reply.data_state);
 608         }
 609
 610         switch (state) {
 611         case REMOTE_NO_KEY_PRESSED:
 612                 break;
 613         case REMOTE_KEY_PRESSED:
 614                 deb_info("key pressed\n");
 615                 d->last_event = event;
 616         case REMOTE_KEY_REPEAT:
 617                 deb_info("key repeated\n");
 618                 input_event(d->rc_input_dev, EV_KEY, event, 1);
 619                 input_sync(d->rc_input_dev);
 620                 input_event(d->rc_input_dev, EV_KEY, d->last_event, 0);
 621                 input_sync(d->rc_input_dev);
 622                 break;
 623         default:
 624                 break;
 625         }
 626
 627 resubmit:
 628         /* Clean the buffer before we requeue */
 629         memset(purb->transfer_buffer, 0, RC_MSG_SIZE_V1_20);
 630
 631         /* Requeue URB */
 632         usb_submit_urb(purb, GFP_ATOMIC);
 633 }
 634
 635 int dib0700_rc_setup(struct dvb_usb_device *d)
 636 {
 637         struct dib0700_state *st = d->priv;
 638         u8 rc_setup[3] = { REQUEST_SET_RC, dvb_usb_dib0700_ir_proto, 0 };
 639         struct urb *purb;
 640         int ret;
 641         int i;
 642
 643         if (d->props.rc_key_map == NULL)
 644                 return 0;
 645
 646         /* Set the IR mode */
 647         i = dib0700_ctrl_wr(d, rc_setup, sizeof(rc_setup));
 648         if (i < 0) {
 649                 err("ir protocol setup failed");
 650                 return i;
 651         }
 652
 653         if (st->fw_version < 0x10200)
 654                 return 0;
 655
 656         /* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
 657         purb = usb_alloc_urb(0, GFP_KERNEL);
 658         if (purb == NULL) {
 659                 err("rc usb alloc urb failed\n");
 660                 return -ENOMEM;
 661         }
 662
 663         purb->transfer_buffer = kzalloc(RC_MSG_SIZE_V1_20, GFP_KERNEL);
 664         if (purb->transfer_buffer == NULL) {
 665                 err("rc kzalloc failed\n");
 666                 usb_free_urb(purb);
 667                 return -ENOMEM;
 668         }
 669
 670         purb->status = -EINPROGRESS;
 671         usb_fill_bulk_urb(purb, d->udev, usb_rcvbulkpipe(d->udev, 1),
 672                           purb->transfer_buffer, RC_MSG_SIZE_V1_20,
 673                           dib0700_rc_urb_completion, d);
 674
 675         ret = usb_submit_urb(purb, GFP_ATOMIC);
 676         if (ret)
 677                 err("rc submit urb failed\n");
 678
 679         return ret;
 680 }
 681
 682 static int dib0700_probe(struct usb_interface *intf,
 683                 const struct usb_device_id *id)
 684 {
 685         int i;
 686         struct dvb_usb_device *dev;
 687
 688         for (i = 0; i < dib0700_device_count; i++)
 689                 if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE,
 690                     &dev, adapter_nr) == 0) {
 691                         struct dib0700_state *st = dev->priv;
 692                         u32 hwversion, romversion, fw_version, fwtype;
 693
 694                         dib0700_get_version(dev, &hwversion, &romversion,
 695                                 &fw_version, &fwtype);
 696
 697                         deb_info("Firmware version: %x, %d, 0x%x, %d\n",
 698                                 hwversion, romversion, fw_version, fwtype);
 699
 700                         st->fw_version = fw_version;
 701                         st->nb_packet_buffer_size = (u32)nb_packet_buffer_size;
 702
 703                         dib0700_rc_setup(dev);
 704
 705                         return 0;
 706                 }
 707
 708         return -ENODEV;
 709 }
 710
 711 static struct usb_driver dib0700_driver = {
 712         .name       = "dvb_usb_dib0700",
 713         .probe      = dib0700_probe,
 714         .disconnect = dvb_usb_device_exit,
 715         .id_table   = dib0700_usb_id_table,
 716 };
 717
 718 /* module stuff */
 719 static int __init dib0700_module_init(void)
 720 {
 721         int result;
 722         info("loaded with support for %d different device-types", dib0700_device_count);
 723         if ((result = usb_register(&dib0700_driver))) {
 724                 err("usb_register failed. Error number %d",result);
 725                 return result;
 726         }
 727
 728         return 0;
 729 }
 730
 731 static void __exit dib0700_module_exit(void)
 732 {
 733         /* deregister this driver from the USB subsystem */
 734         usb_deregister(&dib0700_driver);
 735 }
 736
 737 module_init (dib0700_module_init);
 738 module_exit (dib0700_module_exit);
 739
 740 MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
 741 MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
 742 MODULE_VERSION("1.0");
 743 MODULE_LICENSE("GPL");