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 };
  68
  69 struct ite_config it913x_config;
  70
  71 #define IT913X_RETRY    10
  72 #define IT913X_SND_TIMEOUT      100
  73 #define IT913X_RCV_TIMEOUT      200
  74
  75 static int it913x_bulk_write(struct usb_device *dev,
  76                                 u8 *snd, int len, u8 pipe)
  77 {
  78         int ret, actual_l, i;
  79
  80         for (i = 0; i < IT913X_RETRY; i++) {
  81                 ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe),
  82                                 snd, len , &actual_l, IT913X_SND_TIMEOUT);
  83                 if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
  84                         break;
  85         }
  86
  87         if (len != actual_l && ret == 0)
  88                 ret = -EAGAIN;
  89
  90         return ret;
  91 }
  92
  93 static int it913x_bulk_read(struct usb_device *dev,
  94                                 u8 *rev, int len, u8 pipe)
  95 {
  96         int ret, actual_l, i;
  97
  98         for (i = 0; i < IT913X_RETRY; i++) {
  99                 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe),
 100                                  rev, len , &actual_l, IT913X_RCV_TIMEOUT);
 101                 if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
 102                         break;
 103         }
 104
 105         if (len != actual_l && ret == 0)
 106                 ret = -EAGAIN;
 107
 108         return ret;
 109 }
 110
 111 static u16 check_sum(u8 *p, u8 len)
 112 {
 113         u16 sum = 0;
 114         u8 i = 1;
 115         while (i < len)
 116                 sum += (i++ & 1) ? (*p++) << 8 : *p++;
 117         return ~sum;
 118 }
 119
 120 static int it913x_usb_talk(struct usb_device *udev, u8 mode, u8 pro,
 121                         u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
 122 {
 123         int ret = 0, i, buf_size = 1;
 124         u8 *buff;
 125         u8 rlen;
 126         u16 chk_sum;
 127
 128         buff = kzalloc(256, GFP_KERNEL);
 129         if (!buff) {
 130                 info("USB Buffer Failed");
 131                 return -ENOMEM;
 132         }
 133
 134         buff[buf_size++] = pro;
 135         buff[buf_size++] = cmd;
 136         buff[buf_size++] = cmd_counter;
 137
 138         switch (mode) {
 139         case READ_LONG:
 140         case WRITE_LONG:
 141                 buff[buf_size++] = len;
 142                 buff[buf_size++] = 2;
 143                 buff[buf_size++] = (reg >> 24);
 144                 buff[buf_size++] = (reg >> 16) & 0xff;
 145                 buff[buf_size++] = (reg >> 8) & 0xff;
 146                 buff[buf_size++] = reg & 0xff;
 147         break;
 148         case READ_SHORT:
 149                 buff[buf_size++] = addr;
 150                 break;
 151         case WRITE_SHORT:
 152                 buff[buf_size++] = len;
 153                 buff[buf_size++] = addr;
 154                 buff[buf_size++] = (reg >> 8) & 0xff;
 155                 buff[buf_size++] = reg & 0xff;
 156         break;
 157         case READ_DATA:
 158         case WRITE_DATA:
 159                 break;
 160         case WRITE_CMD:
 161                 mode = 7;
 162                 break;
 163         default:
 164                 kfree(buff);
 165                 return -EINVAL;
 166         }
 167
 168         if (mode & 1) {
 169                 for (i = 0; i < len ; i++)
 170                         buff[buf_size++] = data[i];
 171         }
 172         chk_sum = check_sum(&buff[1], buf_size);
 173
 174         buff[buf_size++] = chk_sum >> 8;
 175         buff[0] = buf_size;
 176         buff[buf_size++] = (chk_sum & 0xff);
 177
 178         ret = it913x_bulk_write(udev, buff, buf_size , 0x02);
 179         if (ret < 0)
 180                 goto error;
 181
 182         ret = it913x_bulk_read(udev, buff, (mode & 1) ?
 183                         5 : len + 5 , 0x01);
 184         if (ret < 0)
 185                 goto error;
 186
 187         rlen = (mode & 0x1) ? 0x1 : len;
 188
 189         if (mode & 1)
 190                 ret = buff[2];
 191         else
 192                 memcpy(data, &buff[3], rlen);
 193
 194         cmd_counter++;
 195
 196 error:  kfree(buff);
 197
 198         return ret;
 199 }
 200
 201 static int it913x_io(struct usb_device *udev, u8 mode, u8 pro,
 202                         u8 cmd, u32 reg, u8 addr, u8 *data, u8 len)
 203 {
 204         int ret, i;
 205
 206         for (i = 0; i < IT913X_RETRY; i++) {
 207                 ret = it913x_usb_talk(udev, mode, pro,
 208                         cmd, reg, addr, data, len);
 209                 if (ret != -EAGAIN)
 210                         break;
 211         }
 212
 213         return ret;
 214 }
 215
 216 static int it913x_wr_reg(struct usb_device *udev, u8 pro, u32 reg , u8 data)
 217 {
 218         int ret;
 219         u8 b[1];
 220         b[0] = data;
 221         ret = it913x_io(udev, WRITE_LONG, pro,
 222                         CMD_DEMOD_WRITE, reg, 0, b, sizeof(b));
 223
 224         return ret;
 225 }
 226
 227 static int it913x_read_reg(struct usb_device *udev, u32 reg)
 228 {
 229         int ret;
 230         u8 data[1];
 231
 232         ret = it913x_io(udev, READ_LONG, DEV_0,
 233                         CMD_DEMOD_READ, reg, 0, &data[0], 1);
 234
 235         return (ret < 0) ? ret : data[0];
 236 }
 237
 238 static u32 it913x_query(struct usb_device *udev, u8 pro)
 239 {
 240         int ret;
 241         u8 data[4];
 242         ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ,
 243                 0x1222, 0, &data[0], 3);
 244
 245         it913x_config.chip_ver = data[0];
 246         it913x_config.chip_type = (u16)(data[2] << 8) + data[1];
 247
 248         info("Chip Version=%02x Chip Type=%04x", it913x_config.chip_ver,
 249                 it913x_config.chip_type);
 250
 251         ret |= it913x_io(udev, READ_SHORT, pro,
 252                         CMD_QUERYINFO, 0, 0x1, &data[0], 4);
 253
 254         it913x_config.firmware = (data[0] << 24) + (data[1] << 16) +
 255                         (data[2] << 8) + data[3];
 256
 257         return (ret < 0) ? 0 : it913x_config.firmware;
 258 }
 259
 260 static int it913x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 261 {
 262         struct usb_device *udev = adap->dev->udev;
 263         int ret;
 264         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 265
 266         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 267                         return -EAGAIN;
 268         deb_info(1, "PID_C  (%02x)", onoff);
 269
 270         ret = it913x_wr_reg(udev, pro, PID_EN, onoff);
 271
 272         mutex_unlock(&adap->dev->i2c_mutex);
 273         return ret;
 274 }
 275
 276 static int it913x_pid_filter(struct dvb_usb_adapter *adap,
 277                 int index, u16 pid, int onoff)
 278 {
 279         struct usb_device *udev = adap->dev->udev;
 280         int ret;
 281         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 282
 283         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 284                         return -EAGAIN;
 285         deb_info(1, "PID_F  (%02x)", onoff);
 286
 287         ret = it913x_wr_reg(udev, pro, PID_LSB, (u8)(pid & 0xff));
 288
 289         ret |= it913x_wr_reg(udev, pro, PID_MSB, (u8)(pid >> 8));
 290
 291         ret |= it913x_wr_reg(udev, pro, PID_INX_EN, (u8)onoff);
 292
 293         ret |= it913x_wr_reg(udev, pro, PID_INX, (u8)(index & 0x1f));
 294
 295         mutex_unlock(&adap->dev->i2c_mutex);
 296         return 0;
 297 }
 298
 299
 300 static int it913x_return_status(struct usb_device *udev)
 301 {
 302         u32 firm = 0;
 303
 304         firm = it913x_query(udev, DEV_0);
 305         if (firm > 0)
 306                 info("Firmware Version %d", firm);
 307
 308         return (firm > 0) ? firm : 0;
 309 }
 310
 311 static int it913x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 312                                  int num)
 313 {
 314         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 315         static u8 data[256];
 316         int ret;
 317         u32 reg;
 318         u8 pro;
 319         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 320                         return -EAGAIN;
 321
 322         debug_data_snipet(1, "Message out", msg[0].buf);
 323         deb_info(2, "num of messages %d address %02x", num, msg[0].addr);
 324
 325         pro = (msg[0].addr & 0x2) ?  DEV_0_DMOD : 0x0;
 326         pro |= (msg[0].addr & 0x20) ? DEV_1 : DEV_0;
 327         memcpy(data, msg[0].buf, msg[0].len);
 328         reg = (data[0] << 24) + (data[1] << 16) +
 329                         (data[2] << 8) + data[3];
 330         if (num == 2) {
 331                 ret = it913x_io(d->udev, READ_LONG, pro,
 332                         CMD_DEMOD_READ, reg, 0, data, msg[1].len);
 333                 memcpy(msg[1].buf, data, msg[1].len);
 334         } else
 335                 ret = it913x_io(d->udev, WRITE_LONG, pro, CMD_DEMOD_WRITE,
 336                         reg, 0, &data[4], msg[0].len - 4);
 337
 338         mutex_unlock(&d->i2c_mutex);
 339
 340         return ret;
 341 }
 342
 343 static u32 it913x_i2c_func(struct i2c_adapter *adapter)
 344 {
 345         return I2C_FUNC_I2C;
 346 }
 347
 348 static struct i2c_algorithm it913x_i2c_algo = {
 349         .master_xfer   = it913x_i2c_xfer,
 350         .functionality = it913x_i2c_func,
 351 };
 352
 353 /* Callbacks for DVB USB */
 354 #define IT913X_POLL 250
 355 static int it913x_rc_query(struct dvb_usb_device *d)
 356 {
 357         u8 ibuf[4];
 358         int ret;
 359         u32 key;
 360         /* Avoid conflict with frontends*/
 361         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 362                         return -EAGAIN;
 363
 364         ret = it913x_io(d->udev, READ_LONG, PRO_LINK, CMD_IR_GET,
 365                 0, 0, &ibuf[0], sizeof(ibuf));
 366
 367         if ((ibuf[2] + ibuf[3]) == 0xff) {
 368                 key = ibuf[2];
 369                 key += ibuf[0] << 16;
 370                 key += ibuf[1] << 8;
 371                 deb_info(1, "NEC Extended Key =%08x", key);
 372                 if (d->rc_dev != NULL)
 373                         rc_keydown(d->rc_dev, key, 0);
 374         }
 375
 376         mutex_unlock(&d->i2c_mutex);
 377
 378         return ret;
 379 }
 380
 381 /* Firmware sets raw */
 382 const char fw_it9135_v1[] = "dvb-usb-it9135-01.fw";
 383 const char fw_it9135_v2[] = "dvb-usb-it9135-02.fw";
 384 const char fw_it9137[] = "dvb-usb-it9137-01.fw";
 385
 386 static int ite_firmware_select(struct usb_device *udev,
 387         struct dvb_usb_device_properties *props)
 388 {
 389         int sw;
 390         /* auto switch */
 391         if (le16_to_cpu(udev->descriptor.idVendor) == USB_VID_KWORLD_2)
 392                 sw = IT9137_FW;
 393         else if (it913x_config.chip_ver == 1)
 394                 sw = IT9135_V1_FW;
 395         else
 396                 sw = IT9135_V2_FW;
 397
 398         /* force switch */
 399         if (dvb_usb_it913x_firmware != IT9135_AUTO)
 400                 sw = dvb_usb_it913x_firmware;
 401
 402         switch (sw) {
 403         case IT9135_V1_FW:
 404                 it913x_config.firmware_ver = 1;
 405                 it913x_config.adc_x2 = 1;
 406                 props->firmware = fw_it9135_v1;
 407                 break;
 408         case IT9135_V2_FW:
 409                 it913x_config.firmware_ver = 1;
 410                 it913x_config.adc_x2 = 1;
 411                 props->firmware = fw_it9135_v2;
 412                 switch (it913x_config.tuner_id_0) {
 413                 case IT9135_61:
 414                 case IT9135_62:
 415                         break;
 416                 default:
 417                         info("Unknown tuner ID applying default 0x60");
 418                 case IT9135_60:
 419                         it913x_config.tuner_id_0 = IT9135_60;
 420                 }
 421                 break;
 422         case IT9137_FW:
 423         default:
 424                 it913x_config.firmware_ver = 0;
 425                 it913x_config.adc_x2 = 0;
 426                 props->firmware = fw_it9137;
 427         }
 428
 429         return 0;
 430 }
 431
 432 static void it913x_select_remote(struct usb_device *udev,
 433         struct dvb_usb_device_properties *props)
 434 {
 435         switch (le16_to_cpu(udev->descriptor.idProduct)) {
 436         case USB_PID_ITETECH_IT9135_9005:
 437                 props->rc.core.rc_codes = RC_MAP_IT913X_V2;
 438                 return;
 439         default:
 440                 props->rc.core.rc_codes = RC_MAP_IT913X_V1;
 441         }
 442         return;
 443 }
 444
 445 #define TS_MPEG_PKT_SIZE        188
 446 #define EP_LOW                  21
 447 #define TS_BUFFER_SIZE_PID      (EP_LOW*TS_MPEG_PKT_SIZE)
 448 #define EP_HIGH                 348
 449 #define TS_BUFFER_SIZE_MAX      (EP_HIGH*TS_MPEG_PKT_SIZE)
 450
 451 static int it913x_select_config(struct usb_device *udev,
 452         struct dvb_usb_device_properties *props)
 453 {
 454         int ret = 0, reg;
 455         bool proprietary_ir = false;
 456
 457         if (it913x_config.chip_ver == 0x02
 458                         && it913x_config.chip_type == 0x9135)
 459                 reg = it913x_read_reg(udev, 0x461d);
 460         else
 461                 reg = it913x_read_reg(udev, 0x461b);
 462
 463         if (reg < 0)
 464                 return reg;
 465
 466         if (reg == 0) {
 467                 it913x_config.dual_mode = 0;
 468                 it913x_config.tuner_id_0 = IT9135_38;
 469                 proprietary_ir = true;
 470         } else {
 471                 /* TS mode */
 472                 reg =  it913x_read_reg(udev, 0x49c5);
 473                 if (reg < 0)
 474                         return reg;
 475                 it913x_config.dual_mode = reg;
 476
 477                 /* IR mode type */
 478                 reg = it913x_read_reg(udev, 0x49ac);
 479                 if (reg < 0)
 480                         return reg;
 481                 if (reg == 5) {
 482                         info("Remote propriety (raw) mode");
 483                         proprietary_ir = true;
 484                 } else if (reg == 1) {
 485                         info("Remote HID mode NOT SUPPORTED");
 486                         proprietary_ir = false;
 487                         props->rc.core.rc_codes = NULL;
 488                 } else
 489                         props->rc.core.rc_codes = NULL;
 490
 491                 /* Tuner_id */
 492                 reg = it913x_read_reg(udev, 0x49d0);
 493                 if (reg < 0)
 494                         return reg;
 495                 it913x_config.tuner_id_0 = reg;
 496         }
 497
 498         if (proprietary_ir)
 499                 it913x_select_remote(udev, props);
 500
 501         if (udev->speed != USB_SPEED_HIGH) {
 502                 props->adapter[0].fe[0].pid_filter_count = 5;
 503                 info("USB 1 low speed mode - connect to USB 2 port");
 504                 if (pid_filter > 0)
 505                         pid_filter = 0;
 506                 if (it913x_config.dual_mode) {
 507                         it913x_config.dual_mode = 0;
 508                         info("Dual mode not supported in USB 1");
 509                 }
 510         } else /* For replugging */
 511                 if(props->adapter[0].fe[0].pid_filter_count == 5)
 512                         props->adapter[0].fe[0].pid_filter_count = 31;
 513
 514         /* Select Stream Buffer Size and pid filter option*/
 515         if (pid_filter) {
 516                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 517                         TS_BUFFER_SIZE_MAX;
 518                 props->adapter[0].fe[0].caps &=
 519                         ~DVB_USB_ADAP_NEED_PID_FILTERING;
 520         } else
 521                 props->adapter[0].fe[0].stream.u.bulk.buffersize =
 522                         TS_BUFFER_SIZE_PID;
 523
 524         if (it913x_config.dual_mode) {
 525                 props->adapter[1].fe[0].stream.u.bulk.buffersize =
 526                         props->adapter[0].fe[0].stream.u.bulk.buffersize;
 527                 props->num_adapters = 2;
 528                 if (pid_filter)
 529                         props->adapter[1].fe[0].caps =
 530                                 props->adapter[0].fe[0].caps;
 531         } else
 532                 props->num_adapters = 1;
 533
 534         info("Dual mode=%x Tuner Type=%x", it913x_config.dual_mode,
 535                 it913x_config.tuner_id_0);
 536
 537         ret = ite_firmware_select(udev, props);
 538
 539         return ret;
 540 }
 541
 542 static int it913x_identify_state(struct usb_device *udev,
 543                 struct dvb_usb_device_properties *props,
 544                 struct dvb_usb_device_description **desc,
 545                 int *cold)
 546 {
 547         int ret = 0, firm_no;
 548         u8 reg;
 549
 550         firm_no = it913x_return_status(udev);
 551
 552         /* Read and select config */
 553         ret = it913x_select_config(udev, props);
 554         if (ret < 0)
 555                 return ret;
 556
 557         if (firm_no > 0) {
 558                 *cold = 0;
 559                 return 0;
 560         }
 561
 562         if (it913x_config.dual_mode) {
 563                 it913x_config.tuner_id_1 = it913x_read_reg(udev, 0x49e0);
 564                 ret = it913x_wr_reg(udev, DEV_0, GPIOH1_EN, 0x1);
 565                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_ON, 0x1);
 566                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x1);
 567                 msleep(50);
 568                 ret |= it913x_wr_reg(udev, DEV_0, GPIOH1_O, 0x0);
 569                 msleep(50);
 570                 reg = it913x_read_reg(udev, GPIOH1_O);
 571                 if (reg == 0) {
 572                         ret |= it913x_wr_reg(udev, DEV_0,  GPIOH1_O, 0x1);
 573                         ret |= it913x_return_status(udev);
 574                         if (ret != 0)
 575                                 ret = it913x_wr_reg(udev, DEV_0,
 576                                         GPIOH1_O, 0x0);
 577                 }
 578         }
 579
 580         reg = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 581
 582         if (it913x_config.dual_mode) {
 583                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, CHIP2_I2C_ADDR);
 584                 if (it913x_config.firmware_ver == 1)
 585                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x1);
 586                 else
 587                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x1);
 588         } else {
 589                 ret |= it913x_wr_reg(udev, DEV_0, 0x4bfb, 0x0);
 590                 if (it913x_config.firmware_ver == 1)
 591                         ret |= it913x_wr_reg(udev, DEV_0,  0xcfff, 0x0);
 592                 else
 593                         ret |= it913x_wr_reg(udev, DEV_0,  CLK_O_EN, 0x0);
 594         }
 595
 596         *cold = 1;
 597
 598         return (ret < 0) ? -ENODEV : 0;
 599 }
 600
 601 static int it913x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 602 {
 603         int ret = 0;
 604         u8 pro = (adap->id == 0) ? DEV_0_DMOD : DEV_1_DMOD;
 605
 606         if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
 607                         return -EAGAIN;
 608         deb_info(1, "STM  (%02x)", onoff);
 609
 610         if (!onoff)
 611                 ret = it913x_wr_reg(adap->dev->udev, pro, PID_RST, 0x1);
 612
 613
 614         mutex_unlock(&adap->dev->i2c_mutex);
 615
 616         return ret;
 617 }
 618
 619 static int it913x_download_firmware(struct usb_device *udev,
 620                                         const struct firmware *fw)
 621 {
 622         int ret = 0, i = 0, pos = 0;
 623         u8 packet_size, min_pkt;
 624         u8 *fw_data;
 625
 626         ret = it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_100);
 627
 628         info("FRM Starting Firmware Download");
 629
 630         /* Multi firmware loader */
 631         /* This uses scatter write firmware headers */
 632         /* The firmware must start with 03 XX 00 */
 633         /* and be the extact firmware length */
 634
 635         if (it913x_config.chip_ver == 2)
 636                 min_pkt = 0x11;
 637         else
 638                 min_pkt = 0x19;
 639
 640         while (i <= fw->size) {
 641                 if (((fw->data[i] == 0x3) && (fw->data[i + 2] == 0x0))
 642                         || (i == fw->size)) {
 643                         packet_size = i - pos;
 644                         if ((packet_size > min_pkt) || (i == fw->size)) {
 645                                 fw_data = (u8 *)(fw->data + pos);
 646                                 pos += packet_size;
 647                                 if (packet_size > 0)
 648                                         ret |= it913x_io(udev, WRITE_DATA,
 649                                                 DEV_0, CMD_SCATTER_WRITE, 0,
 650                                                 0, fw_data, packet_size);
 651                                 udelay(1000);
 652                         }
 653                 }
 654                 i++;
 655         }
 656
 657         ret |= it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0);
 658
 659         msleep(100);
 660
 661         if (ret < 0)
 662                 info("FRM Firmware Download Failed (%04x)" , ret);
 663         else
 664                 info("FRM Firmware Download Completed - Resetting Device");
 665
 666         ret |= it913x_return_status(udev);
 667
 668         msleep(30);
 669
 670         ret |= it913x_wr_reg(udev, DEV_0,  I2C_CLK, I2C_CLK_400);
 671
 672         /* Tuner function */
 673         if (it913x_config.dual_mode)
 674                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0xa0);
 675         else
 676                 ret |= it913x_wr_reg(udev, DEV_0_DMOD , 0xec4c, 0x68);
 677
 678         if ((it913x_config.chip_ver == 1) &&
 679                 (it913x_config.chip_type == 0x9135)) {
 680                 ret |= it913x_wr_reg(udev, DEV_0,  PADODPU, 0x0);
 681                 ret |= it913x_wr_reg(udev, DEV_0,  AGC_O_D, 0x0);
 682                 if (it913x_config.dual_mode) {
 683                         ret |= it913x_wr_reg(udev, DEV_1,  PADODPU, 0x0);
 684                         ret |= it913x_wr_reg(udev, DEV_1,  AGC_O_D, 0x0);
 685                 }
 686         }
 687
 688         return (ret < 0) ? -ENODEV : 0;
 689 }
 690
 691 static int it913x_name(struct dvb_usb_adapter *adap)
 692 {
 693         const char *desc = adap->dev->desc->name;
 694         char *fe_name[] = {"_1", "_2", "_3", "_4"};
 695         char *name = adap->fe_adap[0].fe->ops.info.name;
 696
 697         strlcpy(name, desc, 128);
 698         strlcat(name, fe_name[adap->id], 128);
 699
 700         return 0;
 701 }
 702
 703 static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
 704 {
 705         struct usb_device *udev = adap->dev->udev;
 706         struct it913x_state *st = adap->dev->priv;
 707         int ret = 0;
 708         u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5);
 709         u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize / 4;
 710         u8 pkt_size = 0x80;
 711
 712         if (adap->dev->udev->speed != USB_SPEED_HIGH)
 713                 pkt_size = 0x10;
 714
 715         it913x_config.adf = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 716
 717         if (adap->id == 0)
 718                 memcpy(&st->it913x_config, &it913x_config,
 719                         sizeof(struct ite_config));
 720
 721         adap->fe_adap[0].fe = dvb_attach(it913x_fe_attach,
 722                 &adap->dev->i2c_adap, adap_addr, &st->it913x_config);
 723
 724         if (adap->id == 0 && adap->fe_adap[0].fe) {
 725                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x1);
 726                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x1);
 727                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x0f);
 728                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_NAK, 0x1b);
 729                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x2f);
 730                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB,
 731                                         ep_size & 0xff);
 732                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8);
 733                 ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, pkt_size);
 734         } else if (adap->id == 1 && adap->fe_adap[0].fe) {
 735                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f);
 736                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB,
 737                                         ep_size & 0xff);
 738                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8);
 739                 ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, pkt_size);
 740                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1);
 741                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1);
 742                 ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1);
 743                 ret = it913x_wr_reg(udev, DEV_0_DMOD, TSIS_ENABLE, 0x1);
 744                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2_SW_RST, 0x0);
 745                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_SW_RST, 0x0);
 746                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_HALF_PSB, 0x0);
 747                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF_STOP_EN, 0x1);
 748                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MPEG_FULL_SPEED, 0x0);
 749                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_STOP_EN, 0x0);
 750         } else
 751                 return -ENODEV;
 752
 753         ret = it913x_name(adap);
 754
 755         return ret;
 756 }
 757
 758 /* DVB USB Driver */
 759 static struct dvb_usb_device_properties it913x_properties;
 760
 761 static int it913x_probe(struct usb_interface *intf,
 762                 const struct usb_device_id *id)
 763 {
 764         cmd_counter = 0;
 765         if (0 == dvb_usb_device_init(intf, &it913x_properties,
 766                                      THIS_MODULE, NULL, adapter_nr)) {
 767                 info("DEV registering device driver");
 768                 return 0;
 769         }
 770
 771         info("DEV it913x Error");
 772         return -ENODEV;
 773
 774 }
 775
 776 static struct usb_device_id it913x_table[] = {
 777         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_KWORLD_UB499_2T_T09) },
 778         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135) },
 779         { USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV22_IT9137) },
 780         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9005) },
 781         { USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9135_9006) },
 782         {}              /* Terminating entry */
 783 };
 784
 785 MODULE_DEVICE_TABLE(usb, it913x_table);
 786
 787 static struct dvb_usb_device_properties it913x_properties = {
 788         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 789         .usb_ctrl = DEVICE_SPECIFIC,
 790         .download_firmware = it913x_download_firmware,
 791         .firmware = "dvb-usb-it9137-01.fw",
 792         .no_reconnect = 1,
 793         .size_of_priv = sizeof(struct it913x_state),
 794         .num_adapters = 2,
 795         .adapter = {
 796                 {
 797                 .num_frontends = 1,
 798                 .fe = {{
 799                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 800                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 801                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 802                         .streaming_ctrl   = it913x_streaming_ctrl,
 803                         .pid_filter_count = 31,
 804                         .pid_filter = it913x_pid_filter,
 805                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 806                         .frontend_attach  = it913x_frontend_attach,
 807                         /* parameter for the MPEG2-data transfer */
 808                         .stream = {
 809                                 .type = USB_BULK,
 810                                 .count = 10,
 811                                 .endpoint = 0x04,
 812                                 .u = {/* Keep Low if PID filter on */
 813                                         .bulk = {
 814                                         .buffersize =
 815                                                 TS_BUFFER_SIZE_PID,
 816                                         }
 817                                 }
 818                         }
 819                 }},
 820                 },
 821                         {
 822                 .num_frontends = 1,
 823                 .fe = {{
 824                         .caps = DVB_USB_ADAP_HAS_PID_FILTER|
 825                                 DVB_USB_ADAP_NEED_PID_FILTERING|
 826                                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 827                         .streaming_ctrl   = it913x_streaming_ctrl,
 828                         .pid_filter_count = 31,
 829                         .pid_filter = it913x_pid_filter,
 830                         .pid_filter_ctrl  = it913x_pid_filter_ctrl,
 831                         .frontend_attach  = it913x_frontend_attach,
 832                         /* parameter for the MPEG2-data transfer */
 833                         .stream = {
 834                                 .type = USB_BULK,
 835                                 .count = 5,
 836                                 .endpoint = 0x05,
 837                                 .u = {
 838                                         .bulk = {
 839                                                 .buffersize =
 840                                                         TS_BUFFER_SIZE_PID,
 841                                         }
 842                                 }
 843                         }
 844                 }},
 845                 }
 846         },
 847         .identify_state   = it913x_identify_state,
 848         .rc.core = {
 849                 .protocol       = RC_TYPE_NEC,
 850                 .module_name    = "it913x",
 851                 .rc_query       = it913x_rc_query,
 852                 .rc_interval    = IT913X_POLL,
 853                 .allowed_protos = RC_TYPE_NEC,
 854                 .rc_codes       = RC_MAP_IT913X_V1,
 855         },
 856         .i2c_algo         = &it913x_i2c_algo,
 857         .num_device_descs = 5,
 858         .devices = {
 859                 {   "Kworld UB499-2T T09(IT9137)",
 860                         { &it913x_table[0], NULL },
 861                         },
 862                 {   "ITE 9135 Generic",
 863                         { &it913x_table[1], NULL },
 864                         },
 865                 {   "Sveon STV22 Dual DVB-T HDTV(IT9137)",
 866                         { &it913x_table[2], NULL },
 867                         },
 868                 {   "ITE 9135(9005) Generic",
 869                         { &it913x_table[3], NULL },
 870                         },
 871                 {   "ITE 9135(9006) Generic",
 872                         { &it913x_table[4], NULL },
 873                         },
 874         }
 875 };
 876
 877 static struct usb_driver it913x_driver = {
 878         .name           = "it913x",
 879         .probe          = it913x_probe,
 880         .disconnect     = dvb_usb_device_exit,
 881         .id_table       = it913x_table,
 882 };
 883
 884 module_usb_driver(it913x_driver);
 885
 886 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
 887 MODULE_DESCRIPTION("it913x USB 2 Driver");
 888 MODULE_VERSION("1.25");
 889 MODULE_LICENSE("GPL");