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 static int dvb_usb_it913x_firmware;
  56 module_param_named(firmware, dvb_usb_it913x_firmware, int, 0644);
  57 MODULE_PARM_DESC(firmware, "set firmware 0=auto 1=IT9137 2=IT9135V1");
  58
  59
  60 int cmd_counter;
  61
  62 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  63
  64 struct it913x_state {
  65         u8 id;
  66         struct ite_config it913x_config;
  67         u8 pid_filter_onoff;
  68 };
  69
  70 struct ite_config it913x_config;
  71
  72 #define IT913X_RETRY    10
  73 #define IT913X_SND_TIMEOUT      100
  74 #define IT913X_RCV_TIMEOUT      200
  75
  76 static int it913x_bulk_write(struct usb_device *dev,
  77                                 u8 *snd, int len, u8 pipe)
  78 {
  79         int ret, actual_l, i;
  80
  81         for (i = 0; i < IT913X_RETRY; i++) {
  82                 ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe),
  83                                 snd, len , &actual_l, IT913X_SND_TIMEOUT);
  84                 if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
  85                         break;
  86         }
  87
  88         if (len != actual_l && ret == 0)
  89                 ret = -EAGAIN;
  90
  91         return ret;
  92 }
  93
  94 static int it913x_bulk_read(struct usb_device *dev,
  95                                 u8 *rev, int len, u8 pipe)
  96 {
  97         int ret, actual_l, i;
  98
  99         for (i = 0; i < IT913X_RETRY; i++) {
 100                 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe),
 101                                  rev, len , &actual_l, IT913X_RCV_TIMEOUT);
 102                 if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
 103                         break;
 104         }
 105
 106         if (len != actual_l && ret == 0)
 107                 ret = -EAGAIN;
 108
 109         return ret;
 110 }
 111
 112 static u16 check_sum(u8 *p, u8 len)
 113 {
 114         u16 sum = 0;
 115         u8 i = 1;
 116         while (i < len)
 117                 sum += (i++ & 1) ? (*p++) << 8 : *p++;
 118         return ~sum;
 119 }
 120
 121 static int it913x_usb_talk(struct usb_device *udev, u8 mode, u8 pro,
 122                         u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
 123 {
 124         int ret = 0, i, buf_size = 1;
 125         u8 *buff;
 126         u8 rlen;
 127         u16 chk_sum;
 128
 129         buff = kzalloc(256, GFP_KERNEL);
 130         if (!buff) {
 131                 info("USB Buffer Failed");
 132                 return -ENOMEM;
 133         }
 134
 135         buff[buf_size++] = pro;
 136         buff[buf_size++] = cmd;
 137         buff[buf_size++] = cmd_counter;
 138
 139         switch (mode) {
 140         case READ_LONG:
 141         case WRITE_LONG:
 142                 buff[buf_size++] = len;
 143                 buff[buf_size++] = 2;
 144                 buff[buf_size++] = (reg >> 24);
 145                 buff[buf_size++] = (reg >> 16) & 0xff;
 146                 buff[buf_size++] = (reg >> 8) & 0xff;
 147                 buff[buf_size++] = reg & 0xff;
 148         break;
 149         case READ_SHORT:
 150                 buff[buf_size++] = addr;
 151                 break;
 152         case WRITE_SHORT:
 153                 buff[buf_size++] = len;
 154                 buff[buf_size++] = addr;
 155                 buff[buf_size++] = (reg >> 8) & 0xff;
 156                 buff[buf_size++] = reg & 0xff;
 157         break;
 158         case READ_DATA:
 159         case WRITE_DATA:
 160                 break;
 161         case WRITE_CMD:
 162                 mode = 7;
 163                 break;
 164         default:
 165                 kfree(buff);
 166                 return -EINVAL;
 167         }
 168
 169         if (mode & 1) {
 170                 for (i = 0; i < len ; i++)
 171                         buff[buf_size++] = data[i];
 172         }
 173         chk_sum = check_sum(&buff[1], buf_size);
 174
 175         buff[buf_size++] = chk_sum >> 8;
 176         buff[0] = buf_size;
 177         buff[buf_size++] = (chk_sum & 0xff);
 178
 179         ret = it913x_bulk_write(udev, buff, buf_size , 0x02);
 180         if (ret < 0)
 181                 goto error;
 182
 183         ret = it913x_bulk_read(udev, buff, (mode & 1) ?
 184                         5 : len + 5 , 0x01);
 185         if (ret < 0)
 186                 goto error;
 187
 188         rlen = (mode & 0x1) ? 0x1 : len;
 189
 190         if (mode & 1)
 191                 ret = buff[2];
 192         else
 193                 memcpy(data, &buff[3], rlen);
 194
 195         cmd_counter++;
 196
 197 error:  kfree(buff);
 198
 199         return ret;
 200 }
 201
 202 static int it913x_io(struct usb_device *udev, u8 mode, u8 pro,
 203                         u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
 204 {
 205         int ret, i;
 206
 207         for (i = 0; i < IT913X_RETRY; i++) {
 208                 ret = it913x_usb_talk(udev, mode, pro,
 209                         cmd, reg, addr, data, len);
 210                 if (ret != -EAGAIN)
 211                         break;
 212         }
 213
 214         return ret;
 215 }
 216
 217 static int it913x_wr_reg(struct usb_device *udev, u8 pro, u32 reg , u8 data)
 218 {
 219         int ret;
 220         u8 b[1];
 221         b[0] = data;
 222         ret = it913x_io(udev, WRITE_LONG, pro,
 223                         CMD_DEMOD_WRITE, reg, 0, b, sizeof(b));
 224
 225         return ret;
 226 }
 227
 228 static int it913x_read_reg(struct usb_device *udev, u32 reg)
 229 {
 230         int ret;
 231         u8 data[1];
 232
 233         ret = it913x_io(udev, READ_LONG, DEV_0,
 234                         CMD_DEMOD_READ, reg, 0, &data[0], 1);
 235
 236         return (ret < 0) ? ret : data[0];
 237 }
 238
 239 static u32 it913x_query(struct usb_device *udev, u8 pro)
 240 {
 241         int ret;
 242         u8 data[4];
 243         ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ,
 244                 0x1222, 0, &data[0], 3);
 245
 246         it913x_config.chip_ver = data[0];
 247         it913x_config.chip_type = (u16)(data[2] << 8) + data[1];
 248
 249         info("Chip Version=%02x Chip Type=%04x", it913x_config.chip_ver,
 250                 it913x_config.chip_type);
 251
 252         ret |= it913x_io(udev, READ_SHORT, pro,
 253                         CMD_QUERYINFO, 0, 0x1, &data[0], 4);
 254
 255         it913x_config.firmware = (data[0] << 24) + (data[1] << 16) +
 256                         (data[2] << 8) + data[3];
 257
 258         return (ret < 0) ? 0 : it913x_config.firmware;
 259 }
 260
 261 static int it913x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 262 {
 263         struct it913x_state *st = adap->dev->priv;
 264         struct usb_device *udev = adap->dev->udev;
 265         int ret;
 266         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 267
 268         mutex_lock(&adap->dev->i2c_mutex);
 269
 270         deb_info(1, "PID_C  (%02x)", onoff);
 271
 272         ret = it913x_wr_reg(udev, pro, PID_EN, st->pid_filter_onoff);
 273
 274         mutex_unlock(&adap->dev->i2c_mutex);
 275         return ret;
 276 }
 277
 278 static int it913x_pid_filter(struct dvb_usb_adapter *adap,
 279                 int index, u16 pid, int onoff)
 280 {
 281         struct it913x_state *st = adap->dev->priv;
 282         struct usb_device *udev = adap->dev->udev;
 283         int ret;
 284         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 285
 286         mutex_lock(&adap->dev->i2c_mutex);
 287
 288         deb_info(1, "PID_F  (%02x)", onoff);
 289
 290         ret = it913x_wr_reg(udev, pro, PID_LSB, (u8)(pid & 0xff));
 291
 292         ret |= it913x_wr_reg(udev, pro, PID_MSB, (u8)(pid >> 8));
 293
 294         ret |= it913x_wr_reg(udev, pro, PID_INX_EN, (u8)onoff);
 295
 296         ret |= it913x_wr_reg(udev, pro, PID_INX, (u8)(index & 0x1f));
 297
 298         if (udev->speed == USB_SPEED_HIGH && pid == 0x2000) {
 299                         ret |= it913x_wr_reg(udev, pro, PID_EN, !onoff);
 300                         st->pid_filter_onoff = !onoff;
 301         } else
 302                 st->pid_filter_onoff =
 303                         adap->fe_adap[adap->active_fe].pid_filtering;
 304
 305         mutex_unlock(&adap->dev->i2c_mutex);
 306         return 0;
 307 }
 308
 309
 310 static int it913x_return_status(struct usb_device *udev)
 311 {
 312         u32 firm = 0;
 313
 314         firm = it913x_query(udev, DEV_0);
 315         if (firm > 0)
 316                 info("Firmware Version %d", firm);
 317
 318         return (firm > 0) ? firm : 0;
 319 }
 320
 321 static int it913x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 322                                  int num)
 323 {
 324         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 325         static u8 data[256];
 326         int ret;
 327         u32 reg;
 328         u8 pro;
 329
 330         mutex_lock(&d->i2c_mutex);
 331
 332         debug_data_snipet(1, "Message out", msg[0].buf);
 333         deb_info(2, "num of messages %d address %02x", num, msg[0].addr);
 334
 335         pro = (msg[0].addr & 0x2) ?  DEV_0_DMOD : 0x0;
 336         pro |= (msg[0].addr & 0x20) ? DEV_1 : DEV_0;
 337         memcpy(data, msg[0].buf, msg[0].len);
 338         reg = (data[0] << 24) + (data[1] << 16) +
 339                         (data[2] << 8) + data[3];
 340         if (num == 2) {
 341                 ret = it913x_io(d->udev, READ_LONG, pro,
 342                         CMD_DEMOD_READ, reg, 0, data, msg[1].len);
 343                 memcpy(msg[1].buf, data, msg[1].len);
 344         } else
 345                 ret = it913x_io(d->udev, WRITE_LONG, pro, CMD_DEMOD_WRITE,
 346                         reg, 0, &data[4], msg[0].len - 4);
 347
 348         mutex_unlock(&d->i2c_mutex);
 349
 350         return ret;
 351 }
 352
 353 static u32 it913x_i2c_func(struct i2c_adapter *adapter)
 354 {
 355         return I2C_FUNC_I2C;
 356 }
 357
 358 static struct i2c_algorithm it913x_i2c_algo = {
 359         .master_xfer   = it913x_i2c_xfer,
 360         .functionality = it913x_i2c_func,
 361 };
 362
 363 /* Callbacks for DVB USB */
 364 #define IT913X_POLL 250
 365 static int it913x_rc_query(struct dvb_usb_device *d)
 366 {
 367         u8 ibuf[4];
 368         int ret;
 369         u32 key;
 370         /* Avoid conflict with frontends*/
 371         mutex_lock(&d->i2c_mutex);
 372
 373         ret = it913x_io(d->udev, READ_LONG, PRO_LINK, CMD_IR_GET,
 374                 0, 0, &ibuf[0], sizeof(ibuf));
 375
 376         if ((ibuf[2] + ibuf[3]) == 0xff) {
 377                 key = ibuf[2];
 378                 key += ibuf[0] << 16;
 379                 key += ibuf[1] << 8;
 380                 deb_info(1, "NEC Extended Key =%08x", key);
 381                 if (d->rc_dev != NULL)
 382                         rc_keydown(d->rc_dev, key, 0);
 383         }
 384
 385         mutex_unlock(&d->i2c_mutex);
 386
 387         return ret;
 388 }
 389
 390 /* Firmware sets raw */
 391 const char fw_it9135_v1[] = "dvb-usb-it9135-01.fw";
 392 const char fw_it9135_v2[] = "dvb-usb-it9135-02.fw";
 393 const char fw_it9137[] = "dvb-usb-it9137-01.fw";
 394
 395 static int ite_firmware_select(struct usb_device *udev,
 396         struct dvb_usb_device_properties *props)
 397 {
 398         int sw;
 399         /* auto switch */
 400         if (le16_to_cpu(udev->descriptor.idVendor) == USB_VID_KWORLD_2)
 401                 sw = IT9137_FW;
 402         else if (it913x_config.chip_ver == 1)
 403                 sw = IT9135_V1_FW;
 404         else
 405                 sw = IT9135_V2_FW;
 406
 407         /* force switch */
 408         if (dvb_usb_it913x_firmware != IT9135_AUTO)
 409                 sw = dvb_usb_it913x_firmware;
 410
 411         switch (sw) {
 412         case IT9135_V1_FW:
 413                 it913x_config.firmware_ver = 1;
 414                 it913x_config.adc_x2 = 1;
 415                 it913x_config.read_slevel = false;
 416                 props->firmware = fw_it9135_v1;
 417                 break;
 418         case IT9135_V2_FW:
 419                 it913x_config.firmware_ver = 1;
 420                 it913x_config.adc_x2 = 1;
 421                 it913x_config.read_slevel = false;
 422                 props->firmware = fw_it9135_v2;
 423                 switch (it913x_config.tuner_id_0) {
 424                 case IT9135_61:
 425                 case IT9135_62:
 426                         break;
 427                 default:
 428                         info("Unknown tuner ID applying default 0x60");
 429                 case IT9135_60:
 430                         it913x_config.tuner_id_0 = IT9135_60;
 431                 }
 432                 break;
 433         case IT9137_FW:
 434         default:
 435                 it913x_config.firmware_ver = 0;
 436                 it913x_config.adc_x2 = 0;
 437                 it913x_config.read_slevel = true;
 438                 props->firmware = fw_it9137;
 439         }
 440
 441         return 0;
 442 }
 443
 444 static void it913x_select_remote(struct usb_device *udev,
 445         struct dvb_usb_device_properties *props)
 446 {
 447         switch (le16_to_cpu(udev->descriptor.idProduct)) {
 448         case USB_PID_ITETECH_IT9135_9005:
 449                 props->rc.core.rc_codes = RC_MAP_IT913X_V2;
 450                 return;
 451         default:
 452                 props->rc.core.rc_codes = RC_MAP_IT913X_V1;
 453         }
 454         return;
 455 }
 456
 457 #define TS_MPEG_PKT_SIZE        188
 458 #define EP_LOW                  21
 459 #define TS_BUFFER_SIZE_PID      (EP_LOW*TS_MPEG_PKT_SIZE)
 460 #define EP_HIGH                 348
 461 #define TS_BUFFER_SIZE_MAX      (EP_HIGH*TS_MPEG_PKT_SIZE)
 462
 463 static int it913x_select_config(struct usb_device *udev,
 464         struct dvb_usb_device_properties *props)
 465 {
 466         int ret = 0, reg;
 467         bool proprietary_ir = false;
 468
 469         if (it913x_config.chip_ver == 0x02
 470                         && it913x_config.chip_type == 0x9135)
 471                 reg = it913x_read_reg(udev, 0x461d);
 472         else
 473                 reg = it913x_read_reg(udev, 0x461b);
 474
 475         if (reg < 0)
 476                 return reg;
 477
 478         if (reg == 0) {
 479                 it913x_config.dual_mode = 0;
 480                 it913x_config.tuner_id_0 = IT9135_38;
 481                 proprietary_ir = true;
 482         } else {
 483                 /* TS mode */
 484                 reg =  it913x_read_reg(udev, 0x49c5);
 485                 if (reg < 0)
 486                         return reg;
 487                 it913x_config.dual_mode = reg;
 488
 489                 /* IR mode type */
 490                 reg = it913x_read_reg(udev, 0x49ac);
 491                 if (reg < 0)
 492                         return reg;
 493                 if (reg == 5) {
 494                         info("Remote propriety (raw) mode");
 495                         proprietary_ir = true;
 496                 } else if (reg == 1) {
 497                         info("Remote HID mode NOT SUPPORTED");
 498                         proprietary_ir = false;
 499                         props->rc.core.rc_codes = NULL;
 500                 } else
 501                         props->rc.core.rc_codes = NULL;
 502
 503                 /* Tuner_id */
 504                 reg = it913x_read_reg(udev, 0x49d0);
 505                 if (reg < 0)
 506                         return reg;
 507                 it913x_config.tuner_id_0 = reg;
 508         }
 509
 510         if (proprietary_ir)
 511                 it913x_select_remote(udev, props);
 512
 513         if (udev->speed != USB_SPEED_HIGH) {
 514                 props->adapter[0].fe[0].pid_filter_count = 5;
 515                 info("USB 1 low speed mode - connect to USB 2 port");
 516                 if (pid_filter > 0)
 517                         pid_filter = 0;
 518                 if (it913x_config.dual_mode) {
 519                         it913x_config.dual_mode = 0;
 520                         info("Dual mode not supported in USB 1");
 521                 }
 522         } else /* For replugging */
 523                 if(props->adapter[0].fe[0].pid_filter_count == 5)
 524                         props->adapter[0].fe[0].pid_filter_count = 31;
 525
 526         /* Select Stream Buffer Size and pid filter option*/
 527         if (pid_filter) {
 528                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 529                         TS_BUFFER_SIZE_MAX;
 530                 props->adapter[0].fe[0].caps &=
 531                         ~DVB_USB_ADAP_NEED_PID_FILTERING;
 532         } else
 533                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 534                         TS_BUFFER_SIZE_PID;
 535
 536         if (it913x_config.dual_mode) {
 537                 props->adapter[1].fe[0].stream.u.bulk.buffersize =
 538                         props->adapter[0].fe[0].stream.u.bulk.buffersize;
 539                 props->num_adapters = 2;
 540                 if (pid_filter)
 541                         props->adapter[1].fe[0].caps =
 542                                 props->adapter[0].fe[0].caps;
 543         } else
 544                 props->num_adapters = 1;
 545
 546         info("Dual mode=%x Tuner Type=%x", it913x_config.dual_mode,
 547                 it913x_config.tuner_id_0);
 548
 549         ret = ite_firmware_select(udev, props);
 550
 551         return ret;
 552 }
 553
 554 static int it913x_identify_state(struct usb_device *udev,
 555                 struct dvb_usb_device_properties *props,
 556                 struct dvb_usb_device_description **desc,
 557                 int *cold)
 558 {
 559         int ret = 0, firm_no;
 560         u8 reg;
 561
 562         firm_no = it913x_return_status(udev);
 563
 564         /* Read and select config */
 565         ret = it913x_select_config(udev, props);
 566         if (ret < 0)
 567                 return ret;
 568
 569         if (firm_no > 0) {
 570                 *cold = 0;
 571                 return 0;
 572         }
 573
 574         if (it913x_config.dual_mode) {
 575                 it913x_config.tuner_id_1 = it913x_read_reg(udev, 0x49e0);
 576                 ret = it913x_wr_reg(udev, DEV_0, GPIOH1_EN, 0x1);
 577                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_ON, 0x1);
 578                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1);
 579                 msleep(50);
 580                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x0);
 581                 msleep(50);
 582                 reg = it913x_read_reg(udev, GPIOH1_O);
 583                 if (reg == 0) {
 584                         ret |= it913x_wr_reg(udev, DEV_0,  GPIOH1_O, 0x1);
 585                         ret |= it913x_return_status(udev);
 586                         if (ret != 0)
 587                                 ret = it913x_wr_reg(udev, DEV_0,
 588                                         GPIOH1_O, 0x0);
 589                 }
 590         }
 591
 592         reg = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 593
 594         if (it913x_config.dual_mode) {
 595                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, CHIP2_I2C_ADDR);
 596                 if (it913x_config.firmware_ver == 1)
 597                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x1);
 598                 else
 599                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x1);
 600         } else {
 601                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, 0x0);
 602                 if (it913x_config.firmware_ver == 1)
 603                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x0);
 604                 else
 605                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x0);
 606         }
 607
 608         *cold = 1;
 609
 610         return (ret < 0) ? -ENODEV : 0;
 611 }
 612
 613 static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 614 {
 615         struct it913x_state *st = adap->dev->priv;
 616         int ret = 0;
 617         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 618
 619         deb_info(1, "STM  (%02x)", onoff);
 620
 621         if (!onoff) {
 622                 mutex_lock(&adap->dev->i2c_mutex);
 623
 624                 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
 625
 626                 mutex_unlock(&adap->dev->i2c_mutex);
 627                 st->pid_filter_onoff =
 628                         adap->fe_adap[adap->active_fe].pid_filtering;
 629
 630         }
 631
 632         return ret;
 633 }
 634
 635 static int it913x_download_firmware(struct usb_device *udev,
 636                                         const struct firmware *fw)
 637 {
 638         int ret = 0, i = 0, pos = 0;
 639         u8 packet_size, min_pkt;
 640         u8 *fw_data;
 641
 642         ret = it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_100);
 643
 644         info("FRM Starting Firmware Download");
 645
 646         /* Multi firmware loader */
 647         /* This uses scatter write firmware headers */
 648         /* The firmware must start with 03 XX 00 */
 649         /* and be the extact firmware length */
 650
 651         if (it913x_config.chip_ver == 2)
 652                 min_pkt = 0x11;
 653         else
 654                 min_pkt = 0x19;
 655
 656         while (i <= fw->size) {
 657                 if (((fw->data[i] == 0x3) && (fw->data[i + 2] == 0x0))
 658                         || (i == fw->size)) {
 659                         packet_size = i - pos;
 660                         if ((packet_size > min_pkt) || (i == fw->size)) {
 661                                 fw_data = (u8 *)(fw->data + pos);
 662                                 pos += packet_size;
 663                                 if (packet_size > 0)
 664                                         ret |= it913x_io(udev, WRITE_DATA,
 665                                                 DEV_0, CMD_SCATTER_WRITE, 0,
 666                                                 0, fw_data, packet_size);
 667                                 udelay(1000);
 668                         }
 669                 }
 670                 i++;
 671         }
 672
 673         ret |= it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0);
 674
 675         msleep(100);
 676
 677         if (ret < 0)
 678                 info("FRM Firmware Download Failed (%04x)" , ret);
 679         else
 680                 info("FRM Firmware Download Completed - Resetting Device");
 681
 682         ret |= it913x_return_status(udev);
 683
 684         msleep(30);
 685
 686         ret |= it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_400);
 687
 688         /* Tuner function */
 689         if (it913x_config.dual_mode)
 690                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0xa0);
 691         else
 692                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0x68);
 693
 694         if ((it913x_config.chip_ver == 1) &&
 695                 (it913x_config.chip_type == 0x9135)) {
 696                 ret |= it913x_wr_reg(udev, DEV_0,  PADODPU, 0x0);
 697                 ret |= it913x_wr_reg(udev, DEV_0,  AGC_O_D, 0x0);
 698                 if (it913x_config.dual_mode) {
 699                         ret |= it913x_wr_reg(udev, DEV_1,  PADODPU, 0x0);
 700                         ret |= it913x_wr_reg(udev, DEV_1,  AGC_O_D, 0x0);
 701                 }
 702         }
 703
 704         return (ret < 0) ? -ENODEV : 0;
 705 }
 706
 707 static int it913x_name(struct dvb_usb_adapter *adap)
 708 {
 709         const char *desc = adap->dev->desc->name;
 710         char *fe_name[] = {"_1", "_2", "_3", "_4"};
 711         char *name = adap->fe_adap[0].fe->ops.info.name;
 712
 713         strlcpy(name, desc, 128);
 714         strlcat(name, fe_name[adap->id], 128);
 715
 716         return 0;
 717 }
 718
 719 static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
 720 {
 721         struct usb_device *udev = adap->dev->udev;
 722         struct it913x_state *st = adap->dev->priv;
 723         int ret = 0;
 724         u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5);
 725         u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize / 4;
 726         u8 pkt_size = 0x80;
 727
 728         if (adap->dev->udev->speed != USB_SPEED_HIGH)
 729                 pkt_size = 0x10;
 730
 731         it913x_config.adf = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 732
 733         if (adap->id == 0)
 734                 memcpy(&st->it913x_config, &it913x_config,
 735                         sizeof(struct ite_config));
 736
 737         adap->fe_adap[0].fe = dvb_attach(it913x_fe_attach,
 738                 &adap->dev->i2c_adap, adap_addr, &st->it913x_config);
 739
 740         if (adap->id == 0 && adap->fe_adap[0].fe) {
 741                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x1);
 742                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x1);
 743                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x0f);
 744                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_NAK, 0x1b);
 745                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x2f);
 746                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB,
 747                                         ep_size & 0xff);
 748                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8);
 749                 ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, pkt_size);
 750         } else if (adap->id == 1 && adap->fe_adap[0].fe) {
 751                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f);
 752                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB,
 753                                         ep_size & 0xff);
 754                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8);
 755                 ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, pkt_size);
 756                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1);
 757                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1);
 758                 ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1);
 759                 ret = it913x_wr_reg(udev, DEV_0_DMOD, TSIS_ENABLE, 0x1);
 760                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x0);
 761                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x0);
 762                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_HALF_PSB, 0x0);
 763                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF_STOP_EN, 0x1);
 764                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MPEG_FULL_SPEED, 0x0);
 765                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_STOP_EN, 0x0);
 766         } else
 767                 return -ENODEV;
 768
 769         ret = it913x_name(adap);
 770
 771         return ret;
 772 }
 773
 774 /* DVB USB Driver */
 775 static struct dvb_usb_device_properties it913x_properties;
 776
 777 static int it913x_probe(struct usb_interface *intf,
 778                 const struct usb_device_id *id)
 779 {
 780         cmd_counter = 0;
 781         if (0 == dvb_usb_device_init(intf, &it913x_properties,
 782                                      THIS_MODULE, NULL, adapter_nr)) {
 783                 info("DEV registering device driver");
 784                 return 0;
 785         }
 786
 787         info("DEV it913x Error");
 788         return -ENODEV;
 789
 790 }
 791
 792 static struct usb_device_id it913x_table[] = {
 793         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09) },
 794         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135) },
 795         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137) },
 796         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005) },
 797         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006) },
 798         {}              /* Terminating entry */
 799 };
 800
 801 MODULE_DEVICE_TABLE(usb, it913x_table);
 802
 803 static struct dvb_usb_device_properties it913x_properties = {
 804         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 805         .usb_ctrl = DEVICE_SPECIFIC,
 806         .download_firmware = it913x_download_firmware,
 807         .firmware = "dvb-usb-it9137-01.fw",
 808         .no_reconnect = 1,
 809         .size_of_priv = sizeof(struct it913x_state),
 810         .num_adapters = 2,
 811         .adapter = {
 812                 {
 813                 .num_frontends = 1,
 814                 .fe = {{
 815                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 816                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 817                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 818                         .streaming_ctrl   = it913x_streaming_ctrl,
 819                         .pid_filter_count = 31,
 820                         .pid_filter = it913x_pid_filter,
 821                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 822                         .frontend_attach  = it913x_frontend_attach,
 823                         /* parameter for the MPEG2-data transfer */
 824                         .stream = {
 825                                 .type = USB_BULK,
 826                                 .count = 10,
 827                                 .endpoint = 0x04,
 828                                 .u = {/* Keep Low if PID filter on */
 829                                         .bulk = {
 830                                         .buffersize =
 831                                                 TS_BUFFER_SIZE_PID,
 832                                         }
 833                                 }
 834                         }
 835                 }},
 836                 },
 837                         {
 838                 .num_frontends = 1,
 839                 .fe = {{
 840                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 841                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 842                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 843                         .streaming_ctrl   = it913x_streaming_ctrl,
 844                         .pid_filter_count = 31,
 845                         .pid_filter = it913x_pid_filter,
 846                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 847                         .frontend_attach  = it913x_frontend_attach,
 848                         /* parameter for the MPEG2-data transfer */
 849                         .stream = {
 850                                 .type = USB_BULK,
 851                                 .count = 5,
 852                                 .endpoint = 0x05,
 853                                 .u = {
 854                                         .bulk = {
 855                                                 .buffersize =
 856                                                         TS_BUFFER_SIZE_PID,
 857                                         }
 858                                 }
 859                         }
 860                 }},
 861                 }
 862         },
 863         .identify_state   = it913x_identify_state,
 864         .rc.core = {
 865                 .protocol       = RC_TYPE_NEC,
 866                 .module_name    = "it913x",
 867                 .rc_query       = it913x_rc_query,
 868                 .rc_interval    = IT913X_POLL,
 869                 .allowed_protos = RC_TYPE_NEC,
 870                 .rc_codes       = RC_MAP_IT913X_V1,
 871         },
 872         .i2c_algo         = &it913x_i2c_algo,
 873         .num_device_descs = 5,
 874         .devices = {
 875                 {   "Kworld UB499-2T T09(IT9137)",
 876                         { &it913x_table[0], NULL },
 877                         },
 878                 {   "ITE 9135 Generic",
 879                         { &it913x_table[1], NULL },
 880                         },
 881                 {   "Sveon STV22 Dual DVB-T HDTV(IT9137)",
 882                         { &it913x_table[2], NULL },
 883                         },
 884                 {   "ITE 9135(9005) Generic",
 885                         { &it913x_table[3], NULL },
 886                         },
 887                 {   "ITE 9135(9006) Generic",
 888                         { &it913x_table[4], NULL },
 889                         },
 890         }
 891 };
 892
 893 static struct usb_driver it913x_driver = {
 894         .name           = "it913x",
 895         .probe          = it913x_probe,
 896         .disconnect     = dvb_usb_device_exit,
 897         .id_table       = it913x_table,
 898 };
 899
 900 module_usb_driver(it913x_driver);
 901
 902 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
 903 MODULE_DESCRIPTION("it913x USB 2 Driver");
 904 MODULE_VERSION("1.27");
 905 MODULE_LICENSE("GPL");