drivers/media/usb/dvb-usb/af9005.c

   1 /* DVB USB compliant Linux driver for the Afatech 9005
   2  * USB1.1 DVB-T receiver.
   3  *
   4  * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
   5  *
   6  * Thanks to Afatech who kindly provided information.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * see Documentation/dvb/README.dvb-usb for more information
  19  */
  20 #include "af9005.h"
  21
  22 /* debug */
  23 int dvb_usb_af9005_debug;
  24 module_param_named(debug, dvb_usb_af9005_debug, int, 0644);
  25 MODULE_PARM_DESC(debug,
  26                  "set debugging level (1=info,xfer=2,rc=4,reg=8,i2c=16,fw=32 (or-able))."
  27                  DVB_USB_DEBUG_STATUS);
  28 /* enable obnoxious led */
  29 bool dvb_usb_af9005_led = true;
  30 module_param_named(led, dvb_usb_af9005_led, bool, 0644);
  31 MODULE_PARM_DESC(led, "enable led (default: 1).");
  32
  33 /* eeprom dump */
  34 static int dvb_usb_af9005_dump_eeprom;
  35 module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0);
  36 MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom.");
  37
  38 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  39
  40 /* remote control decoder */
  41 static int (*rc_decode) (struct dvb_usb_device *d, u8 *data, int len,
  42                 u32 *event, int *state);
  43 static void *rc_keys;
  44 static int *rc_keys_size;
  45
  46 u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
  47
  48 struct af9005_device_state {
  49         u8 sequence;
  50         int led_state;
  51         unsigned char data[256];
  52 };
  53
  54 static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
  55                               int readwrite, int type, u8 * values, int len)
  56 {
  57         struct af9005_device_state *st = d->priv;
  58         u8 command, seq;
  59         int i, ret;
  60
  61         if (len < 1) {
  62                 err("generic read/write, less than 1 byte. Makes no sense.");
  63                 return -EINVAL;
  64         }
  65         if (len > 8) {
  66                 err("generic read/write, more than 8 bytes. Not supported.");
  67                 return -EINVAL;
  68         }
  69
  70         mutex_lock(&d->data_mutex);
  71         st->data[0] = 14;               /* rest of buffer length low */
  72         st->data[1] = 0;                /* rest of buffer length high */
  73
  74         st->data[2] = AF9005_REGISTER_RW;       /* register operation */
  75         st->data[3] = 12;               /* rest of buffer length */
  76
  77         st->data[4] = seq = st->sequence++;     /* sequence number */
  78
  79         st->data[5] = (u8) (reg >> 8);  /* register address */
  80         st->data[6] = (u8) (reg & 0xff);
  81
  82         if (type == AF9005_OFDM_REG) {
  83                 command = AF9005_CMD_OFDM_REG;
  84         } else {
  85                 command = AF9005_CMD_TUNER;
  86         }
  87
  88         if (len > 1)
  89                 command |=
  90                     AF9005_CMD_BURST | AF9005_CMD_AUTOINC | (len - 1) << 3;
  91         command |= readwrite;
  92         if (readwrite == AF9005_CMD_WRITE)
  93                 for (i = 0; i < len; i++)
  94                         st->data[8 + i] = values[i];
  95         else if (type == AF9005_TUNER_REG)
  96                 /* read command for tuner, the first byte contains the i2c address */
  97                 st->data[8] = values[0];
  98         st->data[7] = command;
  99
 100         ret = dvb_usb_generic_rw(d, st->data, 16, st->data, 17, 0);
 101         if (ret)
 102                 goto ret;
 103
 104         /* sanity check */
 105         if (st->data[2] != AF9005_REGISTER_RW_ACK) {
 106                 err("generic read/write, wrong reply code.");
 107                 ret = -EIO;
 108                 goto ret;
 109         }
 110         if (st->data[3] != 0x0d) {
 111                 err("generic read/write, wrong length in reply.");
 112                 ret = -EIO;
 113                 goto ret;
 114         }
 115         if (st->data[4] != seq) {
 116                 err("generic read/write, wrong sequence in reply.");
 117                 ret = -EIO;
 118                 goto ret;
 119         }
 120         /*
 121          * In thesis, both input and output buffers should have
 122          * identical values for st->data[5] to st->data[8].
 123          * However, windows driver doesn't check these fields, in fact
 124          * sometimes the register in the reply is different that what
 125          * has been sent
 126          */
 127         if (st->data[16] != 0x01) {
 128                 err("generic read/write wrong status code in reply.");
 129                 ret = -EIO;
 130                 goto ret;
 131         }
 132
 133         if (readwrite == AF9005_CMD_READ)
 134                 for (i = 0; i < len; i++)
 135                         values[i] = st->data[8 + i];
 136
 137 ret:
 138         mutex_unlock(&d->data_mutex);
 139         return ret;
 140
 141 }
 142
 143 int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 * value)
 144 {
 145         int ret;
 146         deb_reg("read register %x ", reg);
 147         ret = af9005_generic_read_write(d, reg,
 148                                         AF9005_CMD_READ, AF9005_OFDM_REG,
 149                                         value, 1);
 150         if (ret)
 151                 deb_reg("failed\n");
 152         else
 153                 deb_reg("value %x\n", *value);
 154         return ret;
 155 }
 156
 157 int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg,
 158                                u8 * values, int len)
 159 {
 160         int ret;
 161         deb_reg("read %d registers %x ", len, reg);
 162         ret = af9005_generic_read_write(d, reg,
 163                                         AF9005_CMD_READ, AF9005_OFDM_REG,
 164                                         values, len);
 165         if (ret)
 166                 deb_reg("failed\n");
 167         else
 168                 debug_dump(values, len, deb_reg);
 169         return ret;
 170 }
 171
 172 int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 value)
 173 {
 174         int ret;
 175         u8 temp = value;
 176         deb_reg("write register %x value %x ", reg, value);
 177         ret = af9005_generic_read_write(d, reg,
 178                                         AF9005_CMD_WRITE, AF9005_OFDM_REG,
 179                                         &temp, 1);
 180         if (ret)
 181                 deb_reg("failed\n");
 182         else
 183                 deb_reg("ok\n");
 184         return ret;
 185 }
 186
 187 int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg,
 188                                 u8 * values, int len)
 189 {
 190         int ret;
 191         deb_reg("write %d registers %x values ", len, reg);
 192         debug_dump(values, len, deb_reg);
 193
 194         ret = af9005_generic_read_write(d, reg,
 195                                         AF9005_CMD_WRITE, AF9005_OFDM_REG,
 196                                         values, len);
 197         if (ret)
 198                 deb_reg("failed\n");
 199         else
 200                 deb_reg("ok\n");
 201         return ret;
 202 }
 203
 204 int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
 205                               u8 len, u8 * value)
 206 {
 207         u8 temp;
 208         int ret;
 209         deb_reg("read bits %x %x %x", reg, pos, len);
 210         ret = af9005_read_ofdm_register(d, reg, &temp);
 211         if (ret) {
 212                 deb_reg(" failed\n");
 213                 return ret;
 214         }
 215         *value = (temp >> pos) & regmask[len - 1];
 216         deb_reg(" value %x\n", *value);
 217         return 0;
 218
 219 }
 220
 221 int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
 222                                u8 len, u8 value)
 223 {
 224         u8 temp, mask;
 225         int ret;
 226         deb_reg("write bits %x %x %x value %x\n", reg, pos, len, value);
 227         if (pos == 0 && len == 8)
 228                 return af9005_write_ofdm_register(d, reg, value);
 229         ret = af9005_read_ofdm_register(d, reg, &temp);
 230         if (ret)
 231                 return ret;
 232         mask = regmask[len - 1] << pos;
 233         temp = (temp & ~mask) | ((value << pos) & mask);
 234         return af9005_write_ofdm_register(d, reg, temp);
 235
 236 }
 237
 238 static int af9005_usb_read_tuner_registers(struct dvb_usb_device *d,
 239                                            u16 reg, u8 * values, int len)
 240 {
 241         return af9005_generic_read_write(d, reg,
 242                                          AF9005_CMD_READ, AF9005_TUNER_REG,
 243                                          values, len);
 244 }
 245
 246 static int af9005_usb_write_tuner_registers(struct dvb_usb_device *d,
 247                                             u16 reg, u8 * values, int len)
 248 {
 249         return af9005_generic_read_write(d, reg,
 250                                          AF9005_CMD_WRITE,
 251                                          AF9005_TUNER_REG, values, len);
 252 }
 253
 254 int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg,
 255                                  u8 * values, int len)
 256 {
 257         /* don't let the name of this function mislead you: it's just used
 258            as an interface from the firmware to the i2c bus. The actual
 259            i2c addresses are contained in the data */
 260         int ret, i, done = 0, fail = 0;
 261         u8 temp;
 262         ret = af9005_usb_write_tuner_registers(d, reg, values, len);
 263         if (ret)
 264                 return ret;
 265         if (reg != 0xffff) {
 266                 /* check if write done (0xa40d bit 1) or fail (0xa40d bit 2) */
 267                 for (i = 0; i < 200; i++) {
 268                         ret =
 269                             af9005_read_ofdm_register(d,
 270                                                       xd_I2C_i2c_m_status_wdat_done,
 271                                                       &temp);
 272                         if (ret)
 273                                 return ret;
 274                         done = temp & (regmask[i2c_m_status_wdat_done_len - 1]
 275                                        << i2c_m_status_wdat_done_pos);
 276                         if (done)
 277                                 break;
 278                         fail = temp & (regmask[i2c_m_status_wdat_fail_len - 1]
 279                                        << i2c_m_status_wdat_fail_pos);
 280                         if (fail)
 281                                 break;
 282                         msleep(50);
 283                 }
 284                 if (i == 200)
 285                         return -ETIMEDOUT;
 286                 if (fail) {
 287                         /* clear write fail bit */
 288                         af9005_write_register_bits(d,
 289                                                    xd_I2C_i2c_m_status_wdat_fail,
 290                                                    i2c_m_status_wdat_fail_pos,
 291                                                    i2c_m_status_wdat_fail_len,
 292                                                    1);
 293                         return -EIO;
 294                 }
 295                 /* clear write done bit */
 296                 ret =
 297                     af9005_write_register_bits(d,
 298                                                xd_I2C_i2c_m_status_wdat_fail,
 299                                                i2c_m_status_wdat_done_pos,
 300                                                i2c_m_status_wdat_done_len, 1);
 301                 if (ret)
 302                         return ret;
 303         }
 304         return 0;
 305 }
 306
 307 int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, u8 addr,
 308                                 u8 * values, int len)
 309 {
 310         /* don't let the name of this function mislead you: it's just used
 311            as an interface from the firmware to the i2c bus. The actual
 312            i2c addresses are contained in the data */
 313         int ret, i;
 314         u8 temp, buf[2];
 315
 316         buf[0] = addr;          /* tuner i2c address */
 317         buf[1] = values[0];     /* tuner register */
 318
 319         values[0] = addr + 0x01;        /* i2c read address */
 320
 321         if (reg == APO_REG_I2C_RW_SILICON_TUNER) {
 322                 /* write tuner i2c address to tuner, 0c00c0 undocumented, found by sniffing */
 323                 ret = af9005_write_tuner_registers(d, 0x00c0, buf, 2);
 324                 if (ret)
 325                         return ret;
 326         }
 327
 328         /* send read command to ofsm */
 329         ret = af9005_usb_read_tuner_registers(d, reg, values, 1);
 330         if (ret)
 331                 return ret;
 332
 333         /* check if read done */
 334         for (i = 0; i < 200; i++) {
 335                 ret = af9005_read_ofdm_register(d, 0xa408, &temp);
 336                 if (ret)
 337                         return ret;
 338                 if (temp & 0x01)
 339                         break;
 340                 msleep(50);
 341         }
 342         if (i == 200)
 343                 return -ETIMEDOUT;
 344
 345         /* clear read done bit (by writing 1) */
 346         ret = af9005_write_ofdm_register(d, xd_I2C_i2c_m_data8, 1);
 347         if (ret)
 348                 return ret;
 349
 350         /* get read data (available from 0xa400) */
 351         for (i = 0; i < len; i++) {
 352                 ret = af9005_read_ofdm_register(d, 0xa400 + i, &temp);
 353                 if (ret)
 354                         return ret;
 355                 values[i] = temp;
 356         }
 357         return 0;
 358 }
 359
 360 static int af9005_i2c_write(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
 361                             u8 * data, int len)
 362 {
 363         int ret, i;
 364         u8 buf[3];
 365         deb_i2c("i2c_write i2caddr %x, reg %x, len %d data ", i2caddr,
 366                 reg, len);
 367         debug_dump(data, len, deb_i2c);
 368
 369         for (i = 0; i < len; i++) {
 370                 buf[0] = i2caddr;
 371                 buf[1] = reg + (u8) i;
 372                 buf[2] = data[i];
 373                 ret =
 374                     af9005_write_tuner_registers(d,
 375                                                  APO_REG_I2C_RW_SILICON_TUNER,
 376                                                  buf, 3);
 377                 if (ret) {
 378                         deb_i2c("i2c_write failed\n");
 379                         return ret;
 380                 }
 381         }
 382         deb_i2c("i2c_write ok\n");
 383         return 0;
 384 }
 385
 386 static int af9005_i2c_read(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
 387                            u8 * data, int len)
 388 {
 389         int ret, i;
 390         u8 temp;
 391         deb_i2c("i2c_read i2caddr %x, reg %x, len %d\n ", i2caddr, reg, len);
 392         for (i = 0; i < len; i++) {
 393                 temp = reg + i;
 394                 ret =
 395                     af9005_read_tuner_registers(d,
 396                                                 APO_REG_I2C_RW_SILICON_TUNER,
 397                                                 i2caddr, &temp, 1);
 398                 if (ret) {
 399                         deb_i2c("i2c_read failed\n");
 400                         return ret;
 401                 }
 402                 data[i] = temp;
 403         }
 404         deb_i2c("i2c data read: ");
 405         debug_dump(data, len, deb_i2c);
 406         return 0;
 407 }
 408
 409 static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 410                            int num)
 411 {
 412         /* only implements what the mt2060 module does, don't know how
 413            to make it really generic */
 414         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 415         int ret;
 416         u8 reg, addr;
 417         u8 *value;
 418
 419         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 420                 return -EAGAIN;
 421
 422         if (num > 2)
 423                 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
 424
 425         if (num == 2) {
 426                 /* reads a single register */
 427                 reg = *msg[0].buf;
 428                 addr = msg[0].addr;
 429                 value = msg[1].buf;
 430                 ret = af9005_i2c_read(d, addr, reg, value, 1);
 431                 if (ret == 0)
 432                         ret = 2;
 433         } else {
 434                 if (msg[0].len < 2) {
 435                         ret = -EOPNOTSUPP;
 436                         goto unlock;
 437                 }
 438                 /* write one or more registers */
 439                 reg = msg[0].buf[0];
 440                 addr = msg[0].addr;
 441                 value = &msg[0].buf[1];
 442                 ret = af9005_i2c_write(d, addr, reg, value, msg[0].len - 1);
 443                 if (ret == 0)
 444                         ret = 1;
 445         }
 446
 447 unlock:
 448         mutex_unlock(&d->i2c_mutex);
 449         return ret;
 450 }
 451
 452 static u32 af9005_i2c_func(struct i2c_adapter *adapter)
 453 {
 454         return I2C_FUNC_I2C;
 455 }
 456
 457 static struct i2c_algorithm af9005_i2c_algo = {
 458         .master_xfer = af9005_i2c_xfer,
 459         .functionality = af9005_i2c_func,
 460 };
 461
 462 int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
 463                         int wlen, u8 * rbuf, int rlen)
 464 {
 465         struct af9005_device_state *st = d->priv;
 466
 467         int ret, i, packet_len;
 468         u8 seq;
 469
 470         if (wlen < 0) {
 471                 err("send command, wlen less than 0 bytes. Makes no sense.");
 472                 return -EINVAL;
 473         }
 474         if (wlen > 54) {
 475                 err("send command, wlen more than 54 bytes. Not supported.");
 476                 return -EINVAL;
 477         }
 478         if (rlen > 54) {
 479                 err("send command, rlen more than 54 bytes. Not supported.");
 480                 return -EINVAL;
 481         }
 482         packet_len = wlen + 5;
 483
 484         mutex_lock(&d->data_mutex);
 485
 486         st->data[0] = (u8) (packet_len & 0xff);
 487         st->data[1] = (u8) ((packet_len & 0xff00) >> 8);
 488
 489         st->data[2] = 0x26;             /* packet type */
 490         st->data[3] = wlen + 3;
 491         st->data[4] = seq = st->sequence++;
 492         st->data[5] = command;
 493         st->data[6] = wlen;
 494         for (i = 0; i < wlen; i++)
 495                 st->data[7 + i] = wbuf[i];
 496         ret = dvb_usb_generic_rw(d, st->data, wlen + 7, st->data, rlen + 7, 0);
 497         if (st->data[2] != 0x27) {
 498                 err("send command, wrong reply code.");
 499                 ret = -EIO;
 500         } else if (st->data[4] != seq) {
 501                 err("send command, wrong sequence in reply.");
 502                 ret = -EIO;
 503         } else if (st->data[5] != 0x01) {
 504                 err("send command, wrong status code in reply.");
 505                 ret = -EIO;
 506         } else if (st->data[6] != rlen) {
 507                 err("send command, invalid data length in reply.");
 508                 ret = -EIO;
 509         }
 510         if (!ret) {
 511                 for (i = 0; i < rlen; i++)
 512                         rbuf[i] = st->data[i + 7];
 513         }
 514
 515         mutex_unlock(&d->data_mutex);
 516         return ret;
 517 }
 518
 519 int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
 520                        int len)
 521 {
 522         struct af9005_device_state *st = d->priv;
 523         u8 seq;
 524         int ret, i;
 525
 526         mutex_lock(&d->data_mutex);
 527
 528         memset(st->data, 0, sizeof(st->data));
 529
 530         st->data[0] = 14;               /* length of rest of packet low */
 531         st->data[1] = 0;                /* length of rest of packer high */
 532
 533         st->data[2] = 0x2a;             /* read/write eeprom */
 534
 535         st->data[3] = 12;               /* size */
 536
 537         st->data[4] = seq = st->sequence++;
 538
 539         st->data[5] = 0;                /* read */
 540
 541         st->data[6] = len;
 542         st->data[7] = address;
 543         ret = dvb_usb_generic_rw(d, st->data, 16, st->data, 14, 0);
 544         if (st->data[2] != 0x2b) {
 545                 err("Read eeprom, invalid reply code");
 546                 ret = -EIO;
 547         } else if (st->data[3] != 10) {
 548                 err("Read eeprom, invalid reply length");
 549                 ret = -EIO;
 550         } else if (st->data[4] != seq) {
 551                 err("Read eeprom, wrong sequence in reply ");
 552                 ret = -EIO;
 553         } else if (st->data[5] != 1) {
 554                 err("Read eeprom, wrong status in reply ");
 555                 ret = -EIO;
 556         }
 557
 558         if (!ret) {
 559                 for (i = 0; i < len; i++)
 560                         values[i] = st->data[6 + i];
 561         }
 562         mutex_unlock(&d->data_mutex);
 563
 564         return ret;
 565 }
 566
 567 static int af9005_boot_packet(struct usb_device *udev, int type, u8 *reply,
 568                               u8 *buf, int size)
 569 {
 570         u16 checksum;
 571         int act_len = 0, i, ret;
 572
 573         memset(buf, 0, size);
 574         buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
 575         buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
 576         switch (type) {
 577         case FW_CONFIG:
 578                 buf[2] = 0x11;
 579                 buf[3] = 0x04;
 580                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 581                 buf[5] = 0x03;
 582                 checksum = buf[4] + buf[5];
 583                 buf[6] = (u8) ((checksum >> 8) & 0xff);
 584                 buf[7] = (u8) (checksum & 0xff);
 585                 break;
 586         case FW_CONFIRM:
 587                 buf[2] = 0x11;
 588                 buf[3] = 0x04;
 589                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 590                 buf[5] = 0x01;
 591                 checksum = buf[4] + buf[5];
 592                 buf[6] = (u8) ((checksum >> 8) & 0xff);
 593                 buf[7] = (u8) (checksum & 0xff);
 594                 break;
 595         case FW_BOOT:
 596                 buf[2] = 0x10;
 597                 buf[3] = 0x08;
 598                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 599                 buf[5] = 0x97;
 600                 buf[6] = 0xaa;
 601                 buf[7] = 0x55;
 602                 buf[8] = 0xa5;
 603                 buf[9] = 0x5a;
 604                 checksum = 0;
 605                 for (i = 4; i <= 9; i++)
 606                         checksum += buf[i];
 607                 buf[10] = (u8) ((checksum >> 8) & 0xff);
 608                 buf[11] = (u8) (checksum & 0xff);
 609                 break;
 610         default:
 611                 err("boot packet invalid boot packet type");
 612                 return -EINVAL;
 613         }
 614         deb_fw(">>> ");
 615         debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
 616
 617         ret = usb_bulk_msg(udev,
 618                            usb_sndbulkpipe(udev, 0x02),
 619                            buf, FW_BULKOUT_SIZE + 2, &act_len, 2000);
 620         if (ret)
 621                 err("boot packet bulk message failed: %d (%d/%d)", ret,
 622                     FW_BULKOUT_SIZE + 2, act_len);
 623         else
 624                 ret = act_len != FW_BULKOUT_SIZE + 2 ? -1 : 0;
 625         if (ret)
 626                 return ret;
 627         memset(buf, 0, 9);
 628         ret = usb_bulk_msg(udev,
 629                            usb_rcvbulkpipe(udev, 0x01), buf, 9, &act_len, 2000);
 630         if (ret) {
 631                 err("boot packet recv bulk message failed: %d", ret);
 632                 return ret;
 633         }
 634         deb_fw("<<< ");
 635         debug_dump(buf, act_len, deb_fw);
 636         checksum = 0;
 637         switch (type) {
 638         case FW_CONFIG:
 639                 if (buf[2] != 0x11) {
 640                         err("boot bad config header.");
 641                         return -EIO;
 642                 }
 643                 if (buf[3] != 0x05) {
 644                         err("boot bad config size.");
 645                         return -EIO;
 646                 }
 647                 if (buf[4] != 0x00) {
 648                         err("boot bad config sequence.");
 649                         return -EIO;
 650                 }
 651                 if (buf[5] != 0x04) {
 652                         err("boot bad config subtype.");
 653                         return -EIO;
 654                 }
 655                 for (i = 4; i <= 6; i++)
 656                         checksum += buf[i];
 657                 if (buf[7] * 256 + buf[8] != checksum) {
 658                         err("boot bad config checksum.");
 659                         return -EIO;
 660                 }
 661                 *reply = buf[6];
 662                 break;
 663         case FW_CONFIRM:
 664                 if (buf[2] != 0x11) {
 665                         err("boot bad confirm header.");
 666                         return -EIO;
 667                 }
 668                 if (buf[3] != 0x05) {
 669                         err("boot bad confirm size.");
 670                         return -EIO;
 671                 }
 672                 if (buf[4] != 0x00) {
 673                         err("boot bad confirm sequence.");
 674                         return -EIO;
 675                 }
 676                 if (buf[5] != 0x02) {
 677                         err("boot bad confirm subtype.");
 678                         return -EIO;
 679                 }
 680                 for (i = 4; i <= 6; i++)
 681                         checksum += buf[i];
 682                 if (buf[7] * 256 + buf[8] != checksum) {
 683                         err("boot bad confirm checksum.");
 684                         return -EIO;
 685                 }
 686                 *reply = buf[6];
 687                 break;
 688         case FW_BOOT:
 689                 if (buf[2] != 0x10) {
 690                         err("boot bad boot header.");
 691                         return -EIO;
 692                 }
 693                 if (buf[3] != 0x05) {
 694                         err("boot bad boot size.");
 695                         return -EIO;
 696                 }
 697                 if (buf[4] != 0x00) {
 698                         err("boot bad boot sequence.");
 699                         return -EIO;
 700                 }
 701                 if (buf[5] != 0x01) {
 702                         err("boot bad boot pattern 01.");
 703                         return -EIO;
 704                 }
 705                 if (buf[6] != 0x10) {
 706                         err("boot bad boot pattern 10.");
 707                         return -EIO;
 708                 }
 709                 for (i = 4; i <= 6; i++)
 710                         checksum += buf[i];
 711                 if (buf[7] * 256 + buf[8] != checksum) {
 712                         err("boot bad boot checksum.");
 713                         return -EIO;
 714                 }
 715                 break;
 716
 717         }
 718
 719         return 0;
 720 }
 721
 722 static int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
 723 {
 724         int i, packets, ret, act_len;
 725
 726         u8 *buf;
 727         u8 reply;
 728
 729         buf = kmalloc(FW_BULKOUT_SIZE + 2, GFP_KERNEL);
 730         if (!buf)
 731                 return -ENOMEM;
 732
 733         ret = af9005_boot_packet(udev, FW_CONFIG, &reply, buf,
 734                                  FW_BULKOUT_SIZE + 2);
 735         if (ret)
 736                 goto err;
 737         if (reply != 0x01) {
 738                 err("before downloading firmware, FW_CONFIG expected 0x01, received 0x%x", reply);
 739                 ret = -EIO;
 740                 goto err;
 741         }
 742         packets = fw->size / FW_BULKOUT_SIZE;
 743         buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
 744         buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
 745         for (i = 0; i < packets; i++) {
 746                 memcpy(&buf[2], fw->data + i * FW_BULKOUT_SIZE,
 747                        FW_BULKOUT_SIZE);
 748                 deb_fw(">>> ");
 749                 debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
 750                 ret = usb_bulk_msg(udev,
 751                                    usb_sndbulkpipe(udev, 0x02),
 752                                    buf, FW_BULKOUT_SIZE + 2, &act_len, 1000);
 753                 if (ret) {
 754                         err("firmware download failed at packet %d with code %d", i, ret);
 755                         goto err;
 756                 }
 757         }
 758         ret = af9005_boot_packet(udev, FW_CONFIRM, &reply,
 759                                  buf, FW_BULKOUT_SIZE + 2);
 760         if (ret)
 761                 goto err;
 762         if (reply != (u8) (packets & 0xff)) {
 763                 err("after downloading firmware, FW_CONFIRM expected 0x%x, received 0x%x", packets & 0xff, reply);
 764                 ret = -EIO;
 765                 goto err;
 766         }
 767         ret = af9005_boot_packet(udev, FW_BOOT, &reply, buf,
 768                                  FW_BULKOUT_SIZE + 2);
 769         if (ret)
 770                 goto err;
 771         ret = af9005_boot_packet(udev, FW_CONFIG, &reply, buf,
 772                                  FW_BULKOUT_SIZE + 2);
 773         if (ret)
 774                 goto err;
 775         if (reply != 0x02) {
 776                 err("after downloading firmware, FW_CONFIG expected 0x02, received 0x%x", reply);
 777                 ret = -EIO;
 778                 goto err;
 779         }
 780
 781 err:
 782         kfree(buf);
 783         return ret;
 784
 785 }
 786
 787 int af9005_led_control(struct dvb_usb_device *d, int onoff)
 788 {
 789         struct af9005_device_state *st = d->priv;
 790         int temp, ret;
 791
 792         if (onoff && dvb_usb_af9005_led)
 793                 temp = 1;
 794         else
 795                 temp = 0;
 796         if (st->led_state != temp) {
 797                 ret =
 798                     af9005_write_register_bits(d, xd_p_reg_top_locken1,
 799                                                reg_top_locken1_pos,
 800                                                reg_top_locken1_len, temp);
 801                 if (ret)
 802                         return ret;
 803                 ret =
 804                     af9005_write_register_bits(d, xd_p_reg_top_lock1,
 805                                                reg_top_lock1_pos,
 806                                                reg_top_lock1_len, temp);
 807                 if (ret)
 808                         return ret;
 809                 st->led_state = temp;
 810         }
 811         return 0;
 812 }
 813
 814 static int af9005_frontend_attach(struct dvb_usb_adapter *adap)
 815 {
 816         u8 buf[8];
 817         int i;
 818
 819         /* without these calls the first commands after downloading
 820            the firmware fail. I put these calls here to simulate
 821            what it is done in dvb-usb-init.c.
 822          */
 823         struct usb_device *udev = adap->dev->udev;
 824         usb_clear_halt(udev, usb_sndbulkpipe(udev, 2));
 825         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 1));
 826         if (dvb_usb_af9005_dump_eeprom) {
 827                 printk("EEPROM DUMP\n");
 828                 for (i = 0; i < 255; i += 8) {
 829                         af9005_read_eeprom(adap->dev, i, buf, 8);
 830                         debug_dump(buf, 8, printk);
 831                 }
 832         }
 833         adap->fe_adap[0].fe = af9005_fe_attach(adap->dev);
 834         return 0;
 835 }
 836
 837 static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
 838 {
 839         struct af9005_device_state *st = d->priv;
 840         int ret, len;
 841         u8 seq;
 842
 843         *state = REMOTE_NO_KEY_PRESSED;
 844         if (rc_decode == NULL) {
 845                 /* it shouldn't never come here */
 846                 return 0;
 847         }
 848
 849         mutex_lock(&d->data_mutex);
 850
 851         /* deb_info("rc_query\n"); */
 852         st->data[0] = 3;                /* rest of packet length low */
 853         st->data[1] = 0;                /* rest of packet lentgh high */
 854         st->data[2] = 0x40;             /* read remote */
 855         st->data[3] = 1;                /* rest of packet length */
 856         st->data[4] = seq = st->sequence++;     /* sequence number */
 857         ret = dvb_usb_generic_rw(d, st->data, 5, st->data, 256, 0);
 858         if (ret) {
 859                 err("rc query failed");
 860                 goto ret;
 861         }
 862         if (st->data[2] != 0x41) {
 863                 err("rc query bad header.");
 864                 ret = -EIO;
 865                 goto ret;
 866         } else if (st->data[4] != seq) {
 867                 err("rc query bad sequence.");
 868                 ret = -EIO;
 869                 goto ret;
 870         }
 871         len = st->data[5];
 872         if (len > 246) {
 873                 err("rc query invalid length");
 874                 ret = -EIO;
 875                 goto ret;
 876         }
 877         if (len > 0) {
 878                 deb_rc("rc data (%d) ", len);
 879                 debug_dump((st->data + 6), len, deb_rc);
 880                 ret = rc_decode(d, &st->data[6], len, event, state);
 881                 if (ret) {
 882                         err("rc_decode failed");
 883                         goto ret;
 884                 } else {
 885                         deb_rc("rc_decode state %x event %x\n", *state, *event);
 886                         if (*state == REMOTE_KEY_REPEAT)
 887                                 *event = d->last_event;
 888                 }
 889         }
 890
 891 ret:
 892         mutex_unlock(&d->data_mutex);
 893         return ret;
 894 }
 895
 896 static int af9005_power_ctrl(struct dvb_usb_device *d, int onoff)
 897 {
 898
 899         return 0;
 900 }
 901
 902 static int af9005_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
 903 {
 904         int ret;
 905         deb_info("pid filter control  onoff %d\n", onoff);
 906         if (onoff) {
 907                 ret =
 908                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
 909                 if (ret)
 910                         return ret;
 911                 ret =
 912                     af9005_write_register_bits(adap->dev,
 913                                                XD_MP2IF_DMX_CTRL, 1, 1, 1);
 914                 if (ret)
 915                         return ret;
 916                 ret =
 917                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
 918         } else
 919                 ret =
 920                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 0);
 921         if (ret)
 922                 return ret;
 923         deb_info("pid filter control ok\n");
 924         return 0;
 925 }
 926
 927 static int af9005_pid_filter(struct dvb_usb_adapter *adap, int index,
 928                              u16 pid, int onoff)
 929 {
 930         u8 cmd = index & 0x1f;
 931         int ret;
 932         deb_info("set pid filter, index %d, pid %x, onoff %d\n", index,
 933                  pid, onoff);
 934         if (onoff) {
 935                 /* cannot use it as pid_filter_ctrl since it has to be done
 936                    before setting the first pid */
 937                 if (adap->feedcount == 1) {
 938                         deb_info("first pid set, enable pid table\n");
 939                         ret = af9005_pid_filter_control(adap, onoff);
 940                         if (ret)
 941                                 return ret;
 942                 }
 943                 ret =
 944                     af9005_write_ofdm_register(adap->dev,
 945                                                XD_MP2IF_PID_DATA_L,
 946                                                (u8) (pid & 0xff));
 947                 if (ret)
 948                         return ret;
 949                 ret =
 950                     af9005_write_ofdm_register(adap->dev,
 951                                                XD_MP2IF_PID_DATA_H,
 952                                                (u8) (pid >> 8));
 953                 if (ret)
 954                         return ret;
 955                 cmd |= 0x20 | 0x40;
 956         } else {
 957                 if (adap->feedcount == 0) {
 958                         deb_info("last pid unset, disable pid table\n");
 959                         ret = af9005_pid_filter_control(adap, onoff);
 960                         if (ret)
 961                                 return ret;
 962                 }
 963         }
 964         ret = af9005_write_ofdm_register(adap->dev, XD_MP2IF_PID_IDX, cmd);
 965         if (ret)
 966                 return ret;
 967         deb_info("set pid ok\n");
 968         return 0;
 969 }
 970
 971 static int af9005_identify_state(struct usb_device *udev,
 972                                  struct dvb_usb_device_properties *props,
 973                                  struct dvb_usb_device_description **desc,
 974                                  int *cold)
 975 {
 976         int ret;
 977         u8 reply, *buf;
 978
 979         buf = kmalloc(FW_BULKOUT_SIZE + 2, GFP_KERNEL);
 980         if (!buf)
 981                 return -ENOMEM;
 982
 983         ret = af9005_boot_packet(udev, FW_CONFIG, &reply,
 984                                  buf, FW_BULKOUT_SIZE + 2);
 985         if (ret)
 986                 goto err;
 987         deb_info("result of FW_CONFIG in identify state %d\n", reply);
 988         if (reply == 0x01)
 989                 *cold = 1;
 990         else if (reply == 0x02)
 991                 *cold = 0;
 992         else
 993                 ret = -EIO;
 994         if (!ret)
 995                 deb_info("Identify state cold = %d\n", *cold);
 996
 997 err:
 998         kfree(buf);
 999         return ret;
1000 }
1001
1002 static struct dvb_usb_device_properties af9005_properties;
1003
1004 static int af9005_usb_probe(struct usb_interface *intf,
1005                             const struct usb_device_id *id)
1006 {
1007         return dvb_usb_device_init(intf, &af9005_properties,
1008                                   THIS_MODULE, NULL, adapter_nr);
1009 }
1010
1011 enum af9005_usb_table_entry {
1012         AFATECH_AF9005,
1013         TERRATEC_AF9005,
1014         ANSONIC_AF9005,
1015 };
1016
1017 static struct usb_device_id af9005_usb_table[] = {
1018         [AFATECH_AF9005] = {USB_DEVICE(USB_VID_AFATECH,
1019                                 USB_PID_AFATECH_AF9005)},
1020         [TERRATEC_AF9005] = {USB_DEVICE(USB_VID_TERRATEC,
1021                                 USB_PID_TERRATEC_CINERGY_T_USB_XE)},
1022         [ANSONIC_AF9005] = {USB_DEVICE(USB_VID_ANSONIC,
1023                                 USB_PID_ANSONIC_DVBT_USB)},
1024         { }
1025 };
1026
1027 MODULE_DEVICE_TABLE(usb, af9005_usb_table);
1028
1029 static struct dvb_usb_device_properties af9005_properties = {
1030         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
1031
1032         .usb_ctrl = DEVICE_SPECIFIC,
1033         .firmware = "/*(DEBLOBBED)*/",
1034         .download_firmware = af9005_download_firmware,
1035         .no_reconnect = 1,
1036
1037         .size_of_priv = sizeof(struct af9005_device_state),
1038
1039         .num_adapters = 1,
1040         .adapter = {
1041                     {
1042                     .num_frontends = 1,
1043                     .fe = {{
1044                      .caps =
1045                      DVB_USB_ADAP_HAS_PID_FILTER |
1046                      DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1047                      .pid_filter_count = 32,
1048                      .pid_filter = af9005_pid_filter,
1049                      /* .pid_filter_ctrl = af9005_pid_filter_control, */
1050                      .frontend_attach = af9005_frontend_attach,
1051                      /* .tuner_attach     = af9005_tuner_attach, */
1052                      /* parameter for the MPEG2-data transfer */
1053                      .stream = {
1054                                 .type = USB_BULK,
1055                                 .count = 10,
1056                                 .endpoint = 0x04,
1057                                 .u = {
1058                                       .bulk = {
1059                                                .buffersize = 4096,      /* actual size seen is 3948 */
1060                                                }
1061                                       }
1062                                 },
1063                      }},
1064                      }
1065                     },
1066         .power_ctrl = af9005_power_ctrl,
1067         .identify_state = af9005_identify_state,
1068
1069         .i2c_algo = &af9005_i2c_algo,
1070
1071         .rc.legacy = {
1072                 .rc_interval = 200,
1073                 .rc_map_table = NULL,
1074                 .rc_map_size = 0,
1075                 .rc_query = af9005_rc_query,
1076         },
1077
1078         .generic_bulk_ctrl_endpoint          = 2,
1079         .generic_bulk_ctrl_endpoint_response = 1,
1080
1081         .num_device_descs = 3,
1082         .devices = {
1083                     {.name = "Afatech DVB-T USB1.1 stick",
1084                      .cold_ids = {&af9005_usb_table[AFATECH_AF9005], NULL},
1085                      .warm_ids = {NULL},
1086                      },
1087                     {.name = "TerraTec Cinergy T USB XE",
1088                      .cold_ids = {&af9005_usb_table[TERRATEC_AF9005], NULL},
1089                      .warm_ids = {NULL},
1090                      },
1091                     {.name = "Ansonic DVB-T USB1.1 stick",
1092                      .cold_ids = {&af9005_usb_table[ANSONIC_AF9005], NULL},
1093                      .warm_ids = {NULL},
1094                      },
1095                     {NULL},
1096                     }
1097 };
1098
1099 /* usb specific object needed to register this driver with the usb subsystem */
1100 static struct usb_driver af9005_usb_driver = {
1101         .name = "dvb_usb_af9005",
1102         .probe = af9005_usb_probe,
1103         .disconnect = dvb_usb_device_exit,
1104         .id_table = af9005_usb_table,
1105 };
1106
1107 /* module stuff */
1108 static int __init af9005_usb_module_init(void)
1109 {
1110         int result;
1111         if ((result = usb_register(&af9005_usb_driver))) {
1112                 err("usb_register failed. (%d)", result);
1113                 return result;
1114         }
1115 #if IS_MODULE(CONFIG_DVB_USB_AF9005) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
1116         /* FIXME: convert to todays kernel IR infrastructure */
1117         rc_decode = symbol_request(af9005_rc_decode);
1118         rc_keys = symbol_request(rc_map_af9005_table);
1119         rc_keys_size = symbol_request(rc_map_af9005_table_size);
1120 #endif
1121         if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) {
1122                 err("af9005_rc_decode function not found, disabling remote");
1123                 af9005_properties.rc.legacy.rc_query = NULL;
1124         } else {
1125                 af9005_properties.rc.legacy.rc_map_table = rc_keys;
1126                 af9005_properties.rc.legacy.rc_map_size = *rc_keys_size;
1127         }
1128
1129         return 0;
1130 }
1131
1132 static void __exit af9005_usb_module_exit(void)
1133 {
1134         /* release rc decode symbols */
1135         if (rc_decode != NULL)
1136                 symbol_put(af9005_rc_decode);
1137         if (rc_keys != NULL)
1138                 symbol_put(rc_map_af9005_table);
1139         if (rc_keys_size != NULL)
1140                 symbol_put(rc_map_af9005_table_size);
1141         /* deregister this driver from the USB subsystem */
1142         usb_deregister(&af9005_usb_driver);
1143 }
1144
1145 module_init(af9005_usb_module_init);
1146 module_exit(af9005_usb_module_exit);
1147
1148 MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
1149 MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick");
1150 MODULE_VERSION("1.0");
1151 MODULE_LICENSE("GPL");