drivers/media/dvb/dvb-usb/it913x.c

   1 /* DVB USB compliant linux driver for IT9137
   2  *
   3  * Copyright (C) 2011 Malcolm Priestley (tvboxspy@gmail.com)
   4  * IT9137 (C) ITE Tech Inc.
   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 Version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  *
  19  *
  20  * see Documentation/dvb/README.dvb-usb for more information
  21  * see Documentation/dvb/it9137.txt for firmware information
  22  *
  23  */
  24 #define DVB_USB_LOG_PREFIX "it913x"
  25
  26 #include <linux/usb.h>
  27 #include <linux/usb/input.h>
  28 #include <media/rc-core.h>
  29
  30 #include "dvb-usb.h"
  31 #include "it913x-fe.h"
  32
  33 /* debug */
  34 static int dvb_usb_it913x_debug;
  35 #define l_dprintk(var, level, args...) do { \
  36         if ((var >= level)) \
  37                 printk(KERN_DEBUG DVB_USB_LOG_PREFIX ": " args); \
  38 } while (0)
  39
  40 #define deb_info(level, args...) l_dprintk(dvb_usb_it913x_debug, level, args)
  41 #define debug_data_snipet(level, name, p) \
  42          deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \
  43                 *p, *(p+1), *(p+2), *(p+3), *(p+4), \
  44                         *(p+5), *(p+6), *(p+7));
  45
  46
  47 module_param_named(debug, dvb_usb_it913x_debug, int, 0644);
  48 MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))."
  49                         DVB_USB_DEBUG_STATUS);
  50
  51 static int pid_filter;
  52 module_param_named(pid, pid_filter, int, 0644);
  53 MODULE_PARM_DESC(pid, "set default 0=on 1=off");
  54
  55 int cmd_counter;
  56
  57 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  58
  59 struct it913x_state {
  60         u8 id;
  61 };
  62
  63 struct ite_config it913x_config;
  64
  65 static int it913x_bulk_write(struct usb_device *dev,
  66                                 u8 *snd, int len, u8 pipe)
  67 {
  68         int ret, actual_l;
  69
  70         ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe),
  71                                 snd, len , &actual_l, 100);
  72         return ret;
  73 }
  74
  75 static int it913x_bulk_read(struct usb_device *dev,
  76                                 u8 *rev, int len, u8 pipe)
  77 {
  78         int ret, actual_l;
  79
  80         ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe),
  81                                  rev, len , &actual_l, 200);
  82         return ret;
  83 }
  84
  85 static u16 check_sum(u8 *p, u8 len)
  86 {
  87         u16 sum = 0;
  88         u8 i = 1;
  89         while (i < len)
  90                 sum += (i++ & 1) ? (*p++) << 8 : *p++;
  91         return ~sum;
  92 }
  93
  94 static int it913x_io(struct usb_device *udev, u8 mode, u8 pro,
  95                         u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
  96 {
  97         int ret = 0, i, buf_size = 1;
  98         u8 *buff;
  99         u8 rlen;
 100         u16 chk_sum;
 101
 102         buff = kzalloc(256, GFP_KERNEL);
 103         if (!buff) {
 104                 info("USB Buffer Failed");
 105                 return -ENOMEM;
 106         }
 107
 108         buff[buf_size++] = pro;
 109         buff[buf_size++] = cmd;
 110         buff[buf_size++] = cmd_counter;
 111
 112         switch (mode) {
 113         case READ_LONG:
 114         case WRITE_LONG:
 115                 buff[buf_size++] = len;
 116                 buff[buf_size++] = 2;
 117                 buff[buf_size++] = (reg >> 24);
 118                 buff[buf_size++] = (reg >> 16) & 0xff;
 119                 buff[buf_size++] = (reg >> 8) & 0xff;
 120                 buff[buf_size++] = reg & 0xff;
 121         break;
 122         case READ_SHORT:
 123                 buff[buf_size++] = addr;
 124                 break;
 125         case WRITE_SHORT:
 126                 buff[buf_size++] = len;
 127                 buff[buf_size++] = addr;
 128                 buff[buf_size++] = (reg >> 8) & 0xff;
 129                 buff[buf_size++] = reg & 0xff;
 130         break;
 131         case READ_DATA:
 132         case WRITE_DATA:
 133                 break;
 134         case WRITE_CMD:
 135                 mode = 7;
 136                 break;
 137         default:
 138                 kfree(buff);
 139                 return -EINVAL;
 140         }
 141
 142         if (mode & 1) {
 143                 for (i = 0; i < len ; i++)
 144                         buff[buf_size++] = data[i];
 145         }
 146         chk_sum = check_sum(&buff[1], buf_size);
 147
 148         buff[buf_size++] = chk_sum >> 8;
 149         buff[0] = buf_size;
 150         buff[buf_size++] = (chk_sum & 0xff);
 151
 152         ret = it913x_bulk_write(udev, buff, buf_size , 0x02);
 153
 154         ret |= it913x_bulk_read(udev, buff, (mode & 1) ?
 155                         5 : len + 5 , 0x01);
 156
 157         rlen = (mode & 0x1) ? 0x1 : len;
 158
 159         if (mode & 1)
 160                 ret |= buff[2];
 161         else
 162                 memcpy(data, &buff[3], rlen);
 163
 164         cmd_counter++;
 165
 166         kfree(buff);
 167
 168         return (ret < 0) ? -ENODEV : 0;
 169 }
 170
 171 static int it913x_wr_reg(struct usb_device *udev, u8 pro, u32 reg , u8 data)
 172 {
 173         int ret;
 174         u8 b[1];
 175         b[0] = data;
 176         ret = it913x_io(udev, WRITE_LONG, pro,
 177                         CMD_DEMOD_WRITE, reg, 0, b, sizeof(b));
 178
 179         return ret;
 180 }
 181
 182 static int it913x_read_reg(struct usb_device *udev, u32 reg)
 183 {
 184         int ret;
 185         u8 data[1];
 186
 187         ret = it913x_io(udev, READ_LONG, DEV_0,
 188                         CMD_DEMOD_READ, reg, 0, &data[0], 1);
 189
 190         return (ret < 0) ? ret : data[0];
 191 }
 192
 193 static u32 it913x_query(struct usb_device *udev, u8 pro)
 194 {
 195         int ret;
 196         u8 data[4];
 197         ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ,
 198                 0x1222, 0, &data[0], 3);
 199
 200         it913x_config.chip_ver = data[0];
 201         it913x_config.chip_type = (u16)(data[2] << 8) + data[1];
 202
 203         info("Chip Version=%02x Chip Type=%04x", it913x_config.chip_ver,
 204                 it913x_config.chip_type);
 205
 206         ret |= it913x_io(udev, READ_SHORT, pro,
 207                         CMD_QUERYINFO, 0, 0x1, &data[0], 4);
 208
 209         it913x_config.firmware = (data[0] << 24) + (data[1] << 16) +
 210                         (data[2] << 8) + data[3];
 211
 212         return (ret < 0) ? 0 : it913x_config.firmware;
 213 }
 214
 215 static int it913x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 216 {
 217         int ret = 0;
 218         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 219
 220         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 221                         return -EAGAIN;
 222         deb_info(1, "PID_C  (%02x)", onoff);
 223
 224         if (!onoff)
 225                 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
 226
 227         mutex_unlock(&adap->dev->i2c_mutex);
 228         return ret;
 229 }
 230
 231 static int it913x_pid_filter(struct dvb_usb_adapter *adap,
 232                 int index, u16 pid, int onoff)
 233 {
 234         struct usb_device *udev = adap->dev->udev;
 235         int ret = 0;
 236         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 237
 238         if (pid_filter > 0)
 239                 return 0;
 240
 241         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 242                         return -EAGAIN;
 243         deb_info(1, "PID_F  (%02x)", onoff);
 244         if (onoff) {
 245                 ret = it913x_wr_reg(udev, pro, PID_EN, 0x1);
 246
 247                 ret |= it913x_wr_reg(udev, pro, PID_LSB, (u8)(pid & 0xff));
 248
 249                 ret |= it913x_wr_reg(udev, pro, PID_MSB, (u8)(pid >> 8));
 250
 251                 ret |= it913x_wr_reg(udev, pro, PID_INX_EN, (u8)onoff);
 252
 253                 ret |= it913x_wr_reg(udev, pro, PID_INX, (u8)(index & 0x1f));
 254
 255         }
 256
 257         mutex_unlock(&adap->dev->i2c_mutex);
 258         return 0;
 259 }
 260
 261
 262 static int it913x_return_status(struct usb_device *udev)
 263 {
 264         u32 firm = 0;
 265
 266         firm = it913x_query(udev, DEV_0);
 267         if (firm > 0)
 268                 info("Firmware Version %d", firm);
 269
 270         return (firm > 0) ? firm : 0;
 271 }
 272
 273 static int it913x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 274                                  int num)
 275 {
 276         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 277         static u8 data[256];
 278         int ret;
 279         u32 reg;
 280         u8 pro;
 281         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 282                         return -EAGAIN;
 283
 284         debug_data_snipet(1, "Message out", msg[0].buf);
 285         deb_info(2, "num of messages %d address %02x", num, msg[0].addr);
 286
 287         pro = (msg[0].addr & 0x2) ?  DEV_0_DMOD : 0x0;
 288         pro |= (msg[0].addr & 0x20) ? DEV_1 : DEV_0;
 289         memcpy(data, msg[0].buf, msg[0].len);
 290         reg = (data[0] << 24) + (data[1] << 16) +
 291                         (data[2] << 8) + data[3];
 292         if (num == 2) {
 293                 ret = it913x_io(d->udev, READ_LONG, pro,
 294                         CMD_DEMOD_READ, reg, 0, data, msg[1].len);
 295                 memcpy(msg[1].buf, data, msg[1].len);
 296         } else
 297                 ret = it913x_io(d->udev, WRITE_LONG, pro, CMD_DEMOD_WRITE,
 298                         reg, 0, &data[4], msg[0].len - 4);
 299
 300         mutex_unlock(&d->i2c_mutex);
 301
 302         return ret;
 303 }
 304
 305 static u32 it913x_i2c_func(struct i2c_adapter *adapter)
 306 {
 307         return I2C_FUNC_I2C;
 308 }
 309
 310 static struct i2c_algorithm it913x_i2c_algo = {
 311         .master_xfer   = it913x_i2c_xfer,
 312         .functionality = it913x_i2c_func,
 313 };
 314
 315 /* Callbacks for DVB USB */
 316 #define IT913X_POLL 250
 317 static int it913x_rc_query(struct dvb_usb_device *d)
 318 {
 319         u8 ibuf[4];
 320         int ret;
 321         u32 key;
 322         /* Avoid conflict with frontends*/
 323         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 324                         return -EAGAIN;
 325
 326         ret = it913x_io(d->udev, READ_LONG, PRO_LINK, CMD_IR_GET,
 327                 0, 0, &ibuf[0], sizeof(ibuf));
 328
 329         if ((ibuf[2] + ibuf[3]) == 0xff) {
 330                 key = ibuf[2];
 331                 key += ibuf[0] << 16;
 332                 key += ibuf[1] << 8;
 333                 deb_info(1, "NEC Extended Key =%08x", key);
 334                 if (d->rc_dev != NULL)
 335                         rc_keydown(d->rc_dev, key, 0);
 336         }
 337
 338         mutex_unlock(&d->i2c_mutex);
 339
 340         return ret;
 341 }
 342
 343 static int ite_firmware_select(struct usb_device *udev,
 344         struct dvb_usb_device_properties *props)
 345 {
 346         int sw;
 347         /* auto switch */
 348         if (le16_to_cpu(udev->descriptor.idProduct) ==
 349                         USB_PID_ITETECH_IT9135)
 350                 sw = IT9135_V1_FW;
 351         else
 352                 sw = IT9137_FW;
 353
 354         switch (sw) {
 355         case IT9135_V1_FW:
 356                 it913x_config.firmware_ver = 0;
 357                 it913x_config.adc_x2 = 1;
 358                 break;
 359         case IT9137_FW:
 360         default:
 361                 it913x_config.firmware_ver = 0;
 362                 it913x_config.adc_x2 = 0;
 363         }
 364
 365         return 0;
 366 }
 367
 368 #define TS_MPEG_PKT_SIZE        188
 369 #define EP_LOW                  21
 370 #define TS_BUFFER_SIZE_PID      (EP_LOW*TS_MPEG_PKT_SIZE)
 371 #define EP_HIGH                 348
 372 #define TS_BUFFER_SIZE_MAX      (EP_HIGH*TS_MPEG_PKT_SIZE)
 373
 374 static int it913x_identify_state(struct usb_device *udev,
 375                 struct dvb_usb_device_properties *props,
 376                 struct dvb_usb_device_description **desc,
 377                 int *cold)
 378 {
 379         int ret = 0, firm_no;
 380         u8 reg, remote;
 381
 382         firm_no = it913x_return_status(udev);
 383
 384         /* checnk for dual mode */
 385         it913x_config.dual_mode =  it913x_read_reg(udev, 0x49c5);
 386
 387         if (udev->speed != USB_SPEED_HIGH) {
 388                 props->adapter[0].fe[0].pid_filter_count = 5;
 389                 info("USB 1 low speed mode - connect to USB 2 port");
 390                 if (pid_filter > 0)
 391                         pid_filter = 0;
 392                 if (it913x_config.dual_mode) {
 393                         it913x_config.dual_mode = 0;
 394                         info("Dual mode not supported in USB 1");
 395                 }
 396         } else /* For replugging */
 397                 if(props->adapter[0].fe[0].pid_filter_count == 5)
 398                         props->adapter[0].fe[0].pid_filter_count = 31;
 399
 400         /* TODO different remotes */
 401         remote = it913x_read_reg(udev, 0x49ac); /* Remote */
 402         if (remote == 0)
 403                 props->rc.core.rc_codes = NULL;
 404
 405         /* TODO at the moment tuner_id is always assigned to 0x38 */
 406         it913x_config.tuner_id_0 = it913x_read_reg(udev, 0x49d0);
 407
 408         info("Dual mode=%x Remote=%x Tuner Type=%x", it913x_config.dual_mode
 409                 , remote, it913x_config.tuner_id_0);
 410
 411         /* Select Stream Buffer Size */
 412         if (pid_filter)
 413                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 414                         TS_BUFFER_SIZE_MAX;
 415         else
 416                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 417                         TS_BUFFER_SIZE_PID;
 418         if (it913x_config.dual_mode)
 419                 props->adapter[1].fe[0].stream.u.bulk.buffersize =
 420                         props->adapter[0].fe[0].stream.u.bulk.buffersize;
 421
 422         ret = ite_firmware_select(udev, props);
 423
 424         if (firm_no > 0) {
 425                 *cold = 0;
 426                 return 0;
 427         }
 428
 429         if (it913x_config.dual_mode) {
 430                 it913x_config.tuner_id_1 = it913x_read_reg(udev, 0x49e0);
 431                 ret = it913x_wr_reg(udev, DEV_0, GPIOH1_EN, 0x1);
 432                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_ON, 0x1);
 433                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1);
 434                 msleep(50);
 435                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x0);
 436                 msleep(50);
 437                 reg = it913x_read_reg(udev, GPIOH1_O);
 438                 if (reg == 0) {
 439                         ret |= it913x_wr_reg(udev, DEV_0,  GPIOH1_O, 0x1);
 440                         ret |= it913x_return_status(udev);
 441                         if (ret != 0)
 442                                 ret = it913x_wr_reg(udev, DEV_0,
 443                                         GPIOH1_O, 0x0);
 444                         props->num_adapters = 2;
 445                 }
 446         } else
 447                 props->num_adapters = 1;
 448
 449         reg = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 450
 451         if (it913x_config.dual_mode) {
 452                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, CHIP2_I2C_ADDR);
 453                 if (it913x_config.firmware_ver == 1)
 454                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x1);
 455                 else
 456                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x1);
 457         } else {
 458                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, 0x0);
 459                 if (it913x_config.firmware_ver == 1)
 460                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x0);
 461                 else
 462                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x0);
 463         }
 464
 465         *cold = 1;
 466
 467         return (ret < 0) ? -ENODEV : 0;
 468 }
 469
 470 static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 471 {
 472         int ret = 0;
 473         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 474
 475         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 476                         return -EAGAIN;
 477         deb_info(1, "STM  (%02x)", onoff);
 478
 479         if (!onoff)
 480                 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
 481
 482
 483         mutex_unlock(&adap->dev->i2c_mutex);
 484
 485         return ret;
 486 }
 487
 488 static int it913x_download_firmware(struct usb_device *udev,
 489                                         const struct firmware *fw)
 490 {
 491         int ret = 0, i = 0, pos = 0;
 492         u8 packet_size;
 493         u8 *fw_data;
 494
 495         ret = it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_100);
 496
 497         info("FRM Starting Firmware Download");
 498
 499         /* Multi firmware loader */
 500         /* This uses scatter write firmware headers */
 501         /* The firmware must start with 03 XX 00 */
 502         /* and be the extact firmware length */
 503
 504         while (i <= fw->size) {
 505                 if (((fw->data[i] == 0x3) && (fw->data[i + 2] == 0x0))
 506                         || (i == fw->size)) {
 507                         packet_size = i - pos;
 508                         if ((packet_size > 0x19) || (i == fw->size)) {
 509                                 fw_data = (u8 *)(fw->data + pos);
 510                                 pos += packet_size;
 511                                 if (packet_size > 0)
 512                                         ret |= it913x_io(udev, WRITE_DATA,
 513                                                 DEV_0, CMD_SCATTER_WRITE, 0,
 514                                                 0, fw_data, packet_size);
 515                                 udelay(1000);
 516                         }
 517                 }
 518                 i++;
 519         }
 520
 521         ret |= it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0);
 522
 523         msleep(100);
 524
 525         if (ret < 0)
 526                 info("FRM Firmware Download Failed (%04x)" , ret);
 527         else
 528                 info("FRM Firmware Download Completed - Resetting Device");
 529
 530         ret |= it913x_return_status(udev);
 531
 532         msleep(30);
 533
 534         ret |= it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_400);
 535
 536         /* Tuner function */
 537         if (it913x_config.dual_mode)
 538                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0xa0);
 539         else
 540                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0x68);
 541
 542         if ((it913x_config.chip_ver == 1) &&
 543                 (it913x_config.chip_type == 0x9135)) {
 544                 ret |= it913x_wr_reg(udev, DEV_0,  PADODPU, 0x0);
 545                 ret |= it913x_wr_reg(udev, DEV_0,  AGC_O_D, 0x0);
 546                 if (it913x_config.dual_mode) {
 547                         ret |= it913x_wr_reg(udev, DEV_1,  PADODPU, 0x0);
 548                         ret |= it913x_wr_reg(udev, DEV_1,  AGC_O_D, 0x0);
 549                 }
 550         }
 551
 552         return (ret < 0) ? -ENODEV : 0;
 553 }
 554
 555 static int it913x_name(struct dvb_usb_adapter *adap)
 556 {
 557         const char *desc = adap->dev->desc->name;
 558         char *fe_name[] = {"_1", "_2", "_3", "_4"};
 559         char *name = adap->fe_adap[0].fe->ops.info.name;
 560
 561         strlcpy(name, desc, 128);
 562         strlcat(name, fe_name[adap->id], 128);
 563
 564         return 0;
 565 }
 566
 567 static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
 568 {
 569         struct usb_device *udev = adap->dev->udev;
 570         int ret = 0;
 571         u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5);
 572         u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize / 4;
 573         u8 pkt_size = 0x80;
 574
 575         if (adap->dev->udev->speed != USB_SPEED_HIGH)
 576                 pkt_size = 0x10;
 577
 578         it913x_config.adf = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 579
 580         adap->fe_adap[0].fe = dvb_attach(it913x_fe_attach,
 581                 &adap->dev->i2c_adap, adap_addr, &it913x_config);
 582
 583         if (adap->id == 0 && adap->fe_adap[0].fe) {
 584                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x1);
 585                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x1);
 586                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x0f);
 587                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_NAK, 0x1b);
 588                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x2f);
 589                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB,
 590                                         ep_size & 0xff);
 591                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8);
 592                 ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, pkt_size);
 593         } else if (adap->id == 1 && adap->fe_adap[0].fe) {
 594                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f);
 595                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB,
 596                                         ep_size & 0xff);
 597                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8);
 598                 ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, pkt_size);
 599                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1);
 600                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1);
 601                 ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1);
 602                 ret = it913x_wr_reg(udev, DEV_0_DMOD, TSIS_ENABLE, 0x1);
 603                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x0);
 604                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x0);
 605                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_HALF_PSB, 0x0);
 606                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF_STOP_EN, 0x1);
 607                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MPEG_FULL_SPEED, 0x0);
 608                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_STOP_EN, 0x0);
 609         } else
 610                 return -ENODEV;
 611
 612         ret = it913x_name(adap);
 613
 614         return ret;
 615 }
 616
 617 /* DVB USB Driver */
 618 static struct dvb_usb_device_properties it913x_properties;
 619
 620 static int it913x_probe(struct usb_interface *intf,
 621                 const struct usb_device_id *id)
 622 {
 623         cmd_counter = 0;
 624         if (0 == dvb_usb_device_init(intf, &it913x_properties,
 625                                      THIS_MODULE, NULL, adapter_nr)) {
 626                 info("DEV registering device driver");
 627                 return 0;
 628         }
 629
 630         info("DEV it913x Error");
 631         return -ENODEV;
 632
 633 }
 634
 635 static struct usb_device_id it913x_table[] = {
 636         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09) },
 637         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135) },
 638         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137) },
 639         {}              /* Terminating entry */
 640 };
 641
 642 MODULE_DEVICE_TABLE(usb, it913x_table);
 643
 644 static struct dvb_usb_device_properties it913x_properties = {
 645         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 646         .usb_ctrl = DEVICE_SPECIFIC,
 647         .download_firmware = it913x_download_firmware,
 648         .firmware = "dvb-usb-it9137-01.fw",
 649         .no_reconnect = 1,
 650         .size_of_priv = sizeof(struct it913x_state),
 651         .num_adapters = 2,
 652         .adapter = {
 653                 {
 654                 .num_frontends = 1,
 655                 .fe = {{
 656                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 657                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 658                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 659                         .streaming_ctrl   = it913x_streaming_ctrl,
 660                         .pid_filter_count = 31,
 661                         .pid_filter = it913x_pid_filter,
 662                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 663                         .frontend_attach  = it913x_frontend_attach,
 664                         /* parameter for the MPEG2-data transfer */
 665                         .stream = {
 666                                 .type = USB_BULK,
 667                                 .count = 10,
 668                                 .endpoint = 0x04,
 669                                 .u = {/* Keep Low if PID filter on */
 670                                         .bulk = {
 671                                         .buffersize =
 672                                                 TS_BUFFER_SIZE_PID,
 673                                         }
 674                                 }
 675                         }
 676                 }},
 677                 },
 678                         {
 679                 .num_frontends = 1,
 680                 .fe = {{
 681                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 682                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 683                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 684                         .streaming_ctrl   = it913x_streaming_ctrl,
 685                         .pid_filter_count = 31,
 686                         .pid_filter = it913x_pid_filter,
 687                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 688                         .frontend_attach  = it913x_frontend_attach,
 689                         /* parameter for the MPEG2-data transfer */
 690                         .stream = {
 691                                 .type = USB_BULK,
 692                                 .count = 5,
 693                                 .endpoint = 0x05,
 694                                 .u = {
 695                                         .bulk = {
 696                                                 .buffersize =
 697                                                         TS_BUFFER_SIZE_PID,
 698                                         }
 699                                 }
 700                         }
 701                 }},
 702                 }
 703         },
 704         .identify_state   = it913x_identify_state,
 705         .rc.core = {
 706                 .protocol       = RC_TYPE_NEC,
 707                 .module_name    = "it913x",
 708                 .rc_query       = it913x_rc_query,
 709                 .rc_interval    = IT913X_POLL,
 710                 .allowed_protos = RC_TYPE_NEC,
 711                 .rc_codes       = RC_MAP_MSI_DIGIVOX_III,
 712         },
 713         .i2c_algo         = &it913x_i2c_algo,
 714         .num_device_descs = 3,
 715         .devices = {
 716                 {   "Kworld UB499-2T T09(IT9137)",
 717                         { &it913x_table[0], NULL },
 718                         },
 719                 {   "ITE 9135 Generic",
 720                         { &it913x_table[1], NULL },
 721                         },
 722                 {   "Sveon STV22 Dual DVB-T HDTV(IT9137)",
 723                         { &it913x_table[2], NULL },
 724                         },
 725         }
 726 };
 727
 728 static struct usb_driver it913x_driver = {
 729         .name           = "it913x",
 730         .probe          = it913x_probe,
 731         .disconnect     = dvb_usb_device_exit,
 732         .id_table       = it913x_table,
 733 };
 734
 735 /* module stuff */
 736 static int __init it913x_module_init(void)
 737 {
 738         int result = usb_register(&it913x_driver);
 739         if (result) {
 740                 err("usb_register failed. Error number %d", result);
 741                 return result;
 742         }
 743
 744         return 0;
 745 }
 746
 747 static void __exit it913x_module_exit(void)
 748 {
 749         /* deregister this driver from the USB subsystem */
 750         usb_deregister(&it913x_driver);
 751 }
 752
 753 module_init(it913x_module_init);
 754 module_exit(it913x_module_exit);
 755
 756 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
 757 MODULE_DESCRIPTION("it913x USB 2 Driver");
 758 MODULE_VERSION("1.11");
 759 MODULE_LICENSE("GPL");