kernel/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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * see Documentation/dvb/README.dvb-usb for more information
  23  */
  24 #include "af9005.h"
  25
  26 /* debug */
  27 int dvb_usb_af9005_debug;
  28 module_param_named(debug, dvb_usb_af9005_debug, int, 0644);
  29 MODULE_PARM_DESC(debug,
  30                  "set debugging level (1=info,xfer=2,rc=4,reg=8,i2c=16,fw=32 (or-able))."
  31                  DVB_USB_DEBUG_STATUS);
  32 /* enable obnoxious led */
  33 bool dvb_usb_af9005_led = true;
  34 module_param_named(led, dvb_usb_af9005_led, bool, 0644);
  35 MODULE_PARM_DESC(led, "enable led (default: 1).");
  36
  37 /* eeprom dump */
  38 static int dvb_usb_af9005_dump_eeprom;
  39 module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0);
  40 MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom.");
  41
  42 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  43
  44 /* remote control decoder */
  45 static int (*rc_decode) (struct dvb_usb_device *d, u8 *data, int len,
  46                 u32 *event, int *state);
  47 static void *rc_keys;
  48 static int *rc_keys_size;
  49
  50 u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
  51
  52 struct af9005_device_state {
  53         u8 sequence;
  54         int led_state;
  55 };
  56
  57 static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
  58                               int readwrite, int type, u8 * values, int len)
  59 {
  60         struct af9005_device_state *st = d->priv;
  61         u8 obuf[16] = { 0 };
  62         u8 ibuf[17] = { 0 };
  63         u8 command;
  64         int i;
  65         int ret;
  66
  67         if (len < 1) {
  68                 err("generic read/write, less than 1 byte. Makes no sense.");
  69                 return -EINVAL;
  70         }
  71         if (len > 8) {
  72                 err("generic read/write, more than 8 bytes. Not supported.");
  73                 return -EINVAL;
  74         }
  75
  76         obuf[0] = 14;           /* rest of buffer length low */
  77         obuf[1] = 0;            /* rest of buffer length high */
  78
  79         obuf[2] = AF9005_REGISTER_RW;   /* register operation */
  80         obuf[3] = 12;           /* rest of buffer length */
  81
  82         obuf[4] = st->sequence++;       /* sequence number */
  83
  84         obuf[5] = (u8) (reg >> 8);      /* register address */
  85         obuf[6] = (u8) (reg & 0xff);
  86
  87         if (type == AF9005_OFDM_REG) {
  88                 command = AF9005_CMD_OFDM_REG;
  89         } else {
  90                 command = AF9005_CMD_TUNER;
  91         }
  92
  93         if (len > 1)
  94                 command |=
  95                     AF9005_CMD_BURST | AF9005_CMD_AUTOINC | (len - 1) << 3;
  96         command |= readwrite;
  97         if (readwrite == AF9005_CMD_WRITE)
  98                 for (i = 0; i < len; i++)
  99                         obuf[8 + i] = values[i];
 100         else if (type == AF9005_TUNER_REG)
 101                 /* read command for tuner, the first byte contains the i2c address */
 102                 obuf[8] = values[0];
 103         obuf[7] = command;
 104
 105         ret = dvb_usb_generic_rw(d, obuf, 16, ibuf, 17, 0);
 106         if (ret)
 107                 return ret;
 108
 109         /* sanity check */
 110         if (ibuf[2] != AF9005_REGISTER_RW_ACK) {
 111                 err("generic read/write, wrong reply code.");
 112                 return -EIO;
 113         }
 114         if (ibuf[3] != 0x0d) {
 115                 err("generic read/write, wrong length in reply.");
 116                 return -EIO;
 117         }
 118         if (ibuf[4] != obuf[4]) {
 119                 err("generic read/write, wrong sequence in reply.");
 120                 return -EIO;
 121         }
 122         /*
 123            Windows driver doesn't check these fields, in fact sometimes
 124            the register in the reply is different that what has been sent
 125
 126            if (ibuf[5] != obuf[5] || ibuf[6] != obuf[6]) {
 127            err("generic read/write, wrong register in reply.");
 128            return -EIO;
 129            }
 130            if (ibuf[7] != command) {
 131            err("generic read/write wrong command in reply.");
 132            return -EIO;
 133            }
 134          */
 135         if (ibuf[16] != 0x01) {
 136                 err("generic read/write wrong status code in reply.");
 137                 return -EIO;
 138         }
 139         if (readwrite == AF9005_CMD_READ)
 140                 for (i = 0; i < len; i++)
 141                         values[i] = ibuf[8 + i];
 142
 143         return 0;
 144
 145 }
 146
 147 int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 * value)
 148 {
 149         int ret;
 150         deb_reg("read register %x ", reg);
 151         ret = af9005_generic_read_write(d, reg,
 152                                         AF9005_CMD_READ, AF9005_OFDM_REG,
 153                                         value, 1);
 154         if (ret)
 155                 deb_reg("failed\n");
 156         else
 157                 deb_reg("value %x\n", *value);
 158         return ret;
 159 }
 160
 161 int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg,
 162                                u8 * values, int len)
 163 {
 164         int ret;
 165         deb_reg("read %d registers %x ", len, reg);
 166         ret = af9005_generic_read_write(d, reg,
 167                                         AF9005_CMD_READ, AF9005_OFDM_REG,
 168                                         values, len);
 169         if (ret)
 170                 deb_reg("failed\n");
 171         else
 172                 debug_dump(values, len, deb_reg);
 173         return ret;
 174 }
 175
 176 int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 value)
 177 {
 178         int ret;
 179         u8 temp = value;
 180         deb_reg("write register %x value %x ", reg, value);
 181         ret = af9005_generic_read_write(d, reg,
 182                                         AF9005_CMD_WRITE, AF9005_OFDM_REG,
 183                                         &temp, 1);
 184         if (ret)
 185                 deb_reg("failed\n");
 186         else
 187                 deb_reg("ok\n");
 188         return ret;
 189 }
 190
 191 int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg,
 192                                 u8 * values, int len)
 193 {
 194         int ret;
 195         deb_reg("write %d registers %x values ", len, reg);
 196         debug_dump(values, len, deb_reg);
 197
 198         ret = af9005_generic_read_write(d, reg,
 199                                         AF9005_CMD_WRITE, AF9005_OFDM_REG,
 200                                         values, len);
 201         if (ret)
 202                 deb_reg("failed\n");
 203         else
 204                 deb_reg("ok\n");
 205         return ret;
 206 }
 207
 208 int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
 209                               u8 len, u8 * value)
 210 {
 211         u8 temp;
 212         int ret;
 213         deb_reg("read bits %x %x %x", reg, pos, len);
 214         ret = af9005_read_ofdm_register(d, reg, &temp);
 215         if (ret) {
 216                 deb_reg(" failed\n");
 217                 return ret;
 218         }
 219         *value = (temp >> pos) & regmask[len - 1];
 220         deb_reg(" value %x\n", *value);
 221         return 0;
 222
 223 }
 224
 225 int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
 226                                u8 len, u8 value)
 227 {
 228         u8 temp, mask;
 229         int ret;
 230         deb_reg("write bits %x %x %x value %x\n", reg, pos, len, value);
 231         if (pos == 0 && len == 8)
 232                 return af9005_write_ofdm_register(d, reg, value);
 233         ret = af9005_read_ofdm_register(d, reg, &temp);
 234         if (ret)
 235                 return ret;
 236         mask = regmask[len - 1] << pos;
 237         temp = (temp & ~mask) | ((value << pos) & mask);
 238         return af9005_write_ofdm_register(d, reg, temp);
 239
 240 }
 241
 242 static int af9005_usb_read_tuner_registers(struct dvb_usb_device *d,
 243                                            u16 reg, u8 * values, int len)
 244 {
 245         return af9005_generic_read_write(d, reg,
 246                                          AF9005_CMD_READ, AF9005_TUNER_REG,
 247                                          values, len);
 248 }
 249
 250 static int af9005_usb_write_tuner_registers(struct dvb_usb_device *d,
 251                                             u16 reg, u8 * values, int len)
 252 {
 253         return af9005_generic_read_write(d, reg,
 254                                          AF9005_CMD_WRITE,
 255                                          AF9005_TUNER_REG, values, len);
 256 }
 257
 258 int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg,
 259                                  u8 * values, int len)
 260 {
 261         /* don't let the name of this function mislead you: it's just used
 262            as an interface from the firmware to the i2c bus. The actual
 263            i2c addresses are contained in the data */
 264         int ret, i, done = 0, fail = 0;
 265         u8 temp;
 266         ret = af9005_usb_write_tuner_registers(d, reg, values, len);
 267         if (ret)
 268                 return ret;
 269         if (reg != 0xffff) {
 270                 /* check if write done (0xa40d bit 1) or fail (0xa40d bit 2) */
 271                 for (i = 0; i < 200; i++) {
 272                         ret =
 273                             af9005_read_ofdm_register(d,
 274                                                       xd_I2C_i2c_m_status_wdat_done,
 275                                                       &temp);
 276                         if (ret)
 277                                 return ret;
 278                         done = temp & (regmask[i2c_m_status_wdat_done_len - 1]
 279                                        << i2c_m_status_wdat_done_pos);
 280                         if (done)
 281                                 break;
 282                         fail = temp & (regmask[i2c_m_status_wdat_fail_len - 1]
 283                                        << i2c_m_status_wdat_fail_pos);
 284                         if (fail)
 285                                 break;
 286                         msleep(50);
 287                 }
 288                 if (i == 200)
 289                         return -ETIMEDOUT;
 290                 if (fail) {
 291                         /* clear write fail bit */
 292                         af9005_write_register_bits(d,
 293                                                    xd_I2C_i2c_m_status_wdat_fail,
 294                                                    i2c_m_status_wdat_fail_pos,
 295                                                    i2c_m_status_wdat_fail_len,
 296                                                    1);
 297                         return -EIO;
 298                 }
 299                 /* clear write done bit */
 300                 ret =
 301                     af9005_write_register_bits(d,
 302                                                xd_I2C_i2c_m_status_wdat_fail,
 303                                                i2c_m_status_wdat_done_pos,
 304                                                i2c_m_status_wdat_done_len, 1);
 305                 if (ret)
 306                         return ret;
 307         }
 308         return 0;
 309 }
 310
 311 int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, u8 addr,
 312                                 u8 * values, int len)
 313 {
 314         /* don't let the name of this function mislead you: it's just used
 315            as an interface from the firmware to the i2c bus. The actual
 316            i2c addresses are contained in the data */
 317         int ret, i;
 318         u8 temp, buf[2];
 319
 320         buf[0] = addr;          /* tuner i2c address */
 321         buf[1] = values[0];     /* tuner register */
 322
 323         values[0] = addr + 0x01;        /* i2c read address */
 324
 325         if (reg == APO_REG_I2C_RW_SILICON_TUNER) {
 326                 /* write tuner i2c address to tuner, 0c00c0 undocumented, found by sniffing */
 327                 ret = af9005_write_tuner_registers(d, 0x00c0, buf, 2);
 328                 if (ret)
 329                         return ret;
 330         }
 331
 332         /* send read command to ofsm */
 333         ret = af9005_usb_read_tuner_registers(d, reg, values, 1);
 334         if (ret)
 335                 return ret;
 336
 337         /* check if read done */
 338         for (i = 0; i < 200; i++) {
 339                 ret = af9005_read_ofdm_register(d, 0xa408, &temp);
 340                 if (ret)
 341                         return ret;
 342                 if (temp & 0x01)
 343                         break;
 344                 msleep(50);
 345         }
 346         if (i == 200)
 347                 return -ETIMEDOUT;
 348
 349         /* clear read done bit (by writing 1) */
 350         ret = af9005_write_ofdm_register(d, xd_I2C_i2c_m_data8, 1);
 351         if (ret)
 352                 return ret;
 353
 354         /* get read data (available from 0xa400) */
 355         for (i = 0; i < len; i++) {
 356                 ret = af9005_read_ofdm_register(d, 0xa400 + i, &temp);
 357                 if (ret)
 358                         return ret;
 359                 values[i] = temp;
 360         }
 361         return 0;
 362 }
 363
 364 static int af9005_i2c_write(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
 365                             u8 * data, int len)
 366 {
 367         int ret, i;
 368         u8 buf[3];
 369         deb_i2c("i2c_write i2caddr %x, reg %x, len %d data ", i2caddr,
 370                 reg, len);
 371         debug_dump(data, len, deb_i2c);
 372
 373         for (i = 0; i < len; i++) {
 374                 buf[0] = i2caddr;
 375                 buf[1] = reg + (u8) i;
 376                 buf[2] = data[i];
 377                 ret =
 378                     af9005_write_tuner_registers(d,
 379                                                  APO_REG_I2C_RW_SILICON_TUNER,
 380                                                  buf, 3);
 381                 if (ret) {
 382                         deb_i2c("i2c_write failed\n");
 383                         return ret;
 384                 }
 385         }
 386         deb_i2c("i2c_write ok\n");
 387         return 0;
 388 }
 389
 390 static int af9005_i2c_read(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
 391                            u8 * data, int len)
 392 {
 393         int ret, i;
 394         u8 temp;
 395         deb_i2c("i2c_read i2caddr %x, reg %x, len %d\n ", i2caddr, reg, len);
 396         for (i = 0; i < len; i++) {
 397                 temp = reg + i;
 398                 ret =
 399                     af9005_read_tuner_registers(d,
 400                                                 APO_REG_I2C_RW_SILICON_TUNER,
 401                                                 i2caddr, &temp, 1);
 402                 if (ret) {
 403                         deb_i2c("i2c_read failed\n");
 404                         return ret;
 405                 }
 406                 data[i] = temp;
 407         }
 408         deb_i2c("i2c data read: ");
 409         debug_dump(data, len, deb_i2c);
 410         return 0;
 411 }
 412
 413 static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 414                            int num)
 415 {
 416         /* only implements what the mt2060 module does, don't know how
 417            to make it really generic */
 418         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 419         int ret;
 420         u8 reg, addr;
 421         u8 *value;
 422
 423         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 424                 return -EAGAIN;
 425
 426         if (num > 2)
 427                 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
 428
 429         if (num == 2) {
 430                 /* reads a single register */
 431                 reg = *msg[0].buf;
 432                 addr = msg[0].addr;
 433                 value = msg[1].buf;
 434                 ret = af9005_i2c_read(d, addr, reg, value, 1);
 435                 if (ret == 0)
 436                         ret = 2;
 437         } else {
 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         mutex_unlock(&d->i2c_mutex);
 448         return ret;
 449 }
 450
 451 static u32 af9005_i2c_func(struct i2c_adapter *adapter)
 452 {
 453         return I2C_FUNC_I2C;
 454 }
 455
 456 static struct i2c_algorithm af9005_i2c_algo = {
 457         .master_xfer = af9005_i2c_xfer,
 458         .functionality = af9005_i2c_func,
 459 };
 460
 461 int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
 462                         int wlen, u8 * rbuf, int rlen)
 463 {
 464         struct af9005_device_state *st = d->priv;
 465
 466         int ret, i, packet_len;
 467         u8 buf[64];
 468         u8 ibuf[64];
 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         buf[0] = (u8) (packet_len & 0xff);
 484         buf[1] = (u8) ((packet_len & 0xff00) >> 8);
 485
 486         buf[2] = 0x26;          /* packet type */
 487         buf[3] = wlen + 3;
 488         buf[4] = st->sequence++;
 489         buf[5] = command;
 490         buf[6] = wlen;
 491         for (i = 0; i < wlen; i++)
 492                 buf[7 + i] = wbuf[i];
 493         ret = dvb_usb_generic_rw(d, buf, wlen + 7, ibuf, rlen + 7, 0);
 494         if (ret)
 495                 return ret;
 496         if (ibuf[2] != 0x27) {
 497                 err("send command, wrong reply code.");
 498                 return -EIO;
 499         }
 500         if (ibuf[4] != buf[4]) {
 501                 err("send command, wrong sequence in reply.");
 502                 return -EIO;
 503         }
 504         if (ibuf[5] != 0x01) {
 505                 err("send command, wrong status code in reply.");
 506                 return -EIO;
 507         }
 508         if (ibuf[6] != rlen) {
 509                 err("send command, invalid data length in reply.");
 510                 return -EIO;
 511         }
 512         for (i = 0; i < rlen; i++)
 513                 rbuf[i] = ibuf[i + 7];
 514         return 0;
 515 }
 516
 517 int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
 518                        int len)
 519 {
 520         struct af9005_device_state *st = d->priv;
 521         u8 obuf[16], ibuf[14];
 522         int ret, i;
 523
 524         memset(obuf, 0, sizeof(obuf));
 525         memset(ibuf, 0, sizeof(ibuf));
 526
 527         obuf[0] = 14;           /* length of rest of packet low */
 528         obuf[1] = 0;            /* length of rest of packer high */
 529
 530         obuf[2] = 0x2a;         /* read/write eeprom */
 531
 532         obuf[3] = 12;           /* size */
 533
 534         obuf[4] = st->sequence++;
 535
 536         obuf[5] = 0;            /* read */
 537
 538         obuf[6] = len;
 539         obuf[7] = address;
 540         ret = dvb_usb_generic_rw(d, obuf, 16, ibuf, 14, 0);
 541         if (ret)
 542                 return ret;
 543         if (ibuf[2] != 0x2b) {
 544                 err("Read eeprom, invalid reply code");
 545                 return -EIO;
 546         }
 547         if (ibuf[3] != 10) {
 548                 err("Read eeprom, invalid reply length");
 549                 return -EIO;
 550         }
 551         if (ibuf[4] != obuf[4]) {
 552                 err("Read eeprom, wrong sequence in reply ");
 553                 return -EIO;
 554         }
 555         if (ibuf[5] != 1) {
 556                 err("Read eeprom, wrong status in reply ");
 557                 return -EIO;
 558         }
 559         for (i = 0; i < len; i++) {
 560                 values[i] = ibuf[6 + i];
 561         }
 562         return 0;
 563 }
 564
 565 static int af9005_boot_packet(struct usb_device *udev, int type, u8 * reply)
 566 {
 567         u8 buf[FW_BULKOUT_SIZE + 2];
 568         u16 checksum;
 569         int act_len, i, ret;
 570         memset(buf, 0, sizeof(buf));
 571         buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
 572         buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
 573         switch (type) {
 574         case FW_CONFIG:
 575                 buf[2] = 0x11;
 576                 buf[3] = 0x04;
 577                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 578                 buf[5] = 0x03;
 579                 checksum = buf[4] + buf[5];
 580                 buf[6] = (u8) ((checksum >> 8) & 0xff);
 581                 buf[7] = (u8) (checksum & 0xff);
 582                 break;
 583         case FW_CONFIRM:
 584                 buf[2] = 0x11;
 585                 buf[3] = 0x04;
 586                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 587                 buf[5] = 0x01;
 588                 checksum = buf[4] + buf[5];
 589                 buf[6] = (u8) ((checksum >> 8) & 0xff);
 590                 buf[7] = (u8) (checksum & 0xff);
 591                 break;
 592         case FW_BOOT:
 593                 buf[2] = 0x10;
 594                 buf[3] = 0x08;
 595                 buf[4] = 0x00;  /* sequence number, original driver doesn't increment it here */
 596                 buf[5] = 0x97;
 597                 buf[6] = 0xaa;
 598                 buf[7] = 0x55;
 599                 buf[8] = 0xa5;
 600                 buf[9] = 0x5a;
 601                 checksum = 0;
 602                 for (i = 4; i <= 9; i++)
 603                         checksum += buf[i];
 604                 buf[10] = (u8) ((checksum >> 8) & 0xff);
 605                 buf[11] = (u8) (checksum & 0xff);
 606                 break;
 607         default:
 608                 err("boot packet invalid boot packet type");
 609                 return -EINVAL;
 610         }
 611         deb_fw(">>> ");
 612         debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
 613
 614         ret = usb_bulk_msg(udev,
 615                            usb_sndbulkpipe(udev, 0x02),
 616                            buf, FW_BULKOUT_SIZE + 2, &act_len, 2000);
 617         if (ret)
 618                 err("boot packet bulk message failed: %d (%d/%d)", ret,
 619                     FW_BULKOUT_SIZE + 2, act_len);
 620         else
 621                 ret = act_len != FW_BULKOUT_SIZE + 2 ? -1 : 0;
 622         if (ret)
 623                 return ret;
 624         memset(buf, 0, 9);
 625         ret = usb_bulk_msg(udev,
 626                            usb_rcvbulkpipe(udev, 0x01), buf, 9, &act_len, 2000);
 627         if (ret) {
 628                 err("boot packet recv bulk message failed: %d", ret);
 629                 return ret;
 630         }
 631         deb_fw("<<< ");
 632         debug_dump(buf, act_len, deb_fw);
 633         checksum = 0;
 634         switch (type) {
 635         case FW_CONFIG:
 636                 if (buf[2] != 0x11) {
 637                         err("boot bad config header.");
 638                         return -EIO;
 639                 }
 640                 if (buf[3] != 0x05) {
 641                         err("boot bad config size.");
 642                         return -EIO;
 643                 }
 644                 if (buf[4] != 0x00) {
 645                         err("boot bad config sequence.");
 646                         return -EIO;
 647                 }
 648                 if (buf[5] != 0x04) {
 649                         err("boot bad config subtype.");
 650                         return -EIO;
 651                 }
 652                 for (i = 4; i <= 6; i++)
 653                         checksum += buf[i];
 654                 if (buf[7] * 256 + buf[8] != checksum) {
 655                         err("boot bad config checksum.");
 656                         return -EIO;
 657                 }
 658                 *reply = buf[6];
 659                 break;
 660         case FW_CONFIRM:
 661                 if (buf[2] != 0x11) {
 662                         err("boot bad confirm header.");
 663                         return -EIO;
 664                 }
 665                 if (buf[3] != 0x05) {
 666                         err("boot bad confirm size.");
 667                         return -EIO;
 668                 }
 669                 if (buf[4] != 0x00) {
 670                         err("boot bad confirm sequence.");
 671                         return -EIO;
 672                 }
 673                 if (buf[5] != 0x02) {
 674                         err("boot bad confirm subtype.");
 675                         return -EIO;
 676                 }
 677                 for (i = 4; i <= 6; i++)
 678                         checksum += buf[i];
 679                 if (buf[7] * 256 + buf[8] != checksum) {
 680                         err("boot bad confirm checksum.");
 681                         return -EIO;
 682                 }
 683                 *reply = buf[6];
 684                 break;
 685         case FW_BOOT:
 686                 if (buf[2] != 0x10) {
 687                         err("boot bad boot header.");
 688                         return -EIO;
 689                 }
 690                 if (buf[3] != 0x05) {
 691                         err("boot bad boot size.");
 692                         return -EIO;
 693                 }
 694                 if (buf[4] != 0x00) {
 695                         err("boot bad boot sequence.");
 696                         return -EIO;
 697                 }
 698                 if (buf[5] != 0x01) {
 699                         err("boot bad boot pattern 01.");
 700                         return -EIO;
 701                 }
 702                 if (buf[6] != 0x10) {
 703                         err("boot bad boot pattern 10.");
 704                         return -EIO;
 705                 }
 706                 for (i = 4; i <= 6; i++)
 707                         checksum += buf[i];
 708                 if (buf[7] * 256 + buf[8] != checksum) {
 709                         err("boot bad boot checksum.");
 710                         return -EIO;
 711                 }
 712                 break;
 713
 714         }
 715
 716         return 0;
 717 }
 718
 719 static int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
 720 {
 721         int i, packets, ret, act_len;
 722
 723         u8 buf[FW_BULKOUT_SIZE + 2];
 724         u8 reply;
 725
 726         ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
 727         if (ret)
 728                 return ret;
 729         if (reply != 0x01) {
 730                 err("before downloading firmware, FW_CONFIG expected 0x01, received 0x%x", reply);
 731                 return -EIO;
 732         }
 733         packets = fw->size / FW_BULKOUT_SIZE;
 734         buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
 735         buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
 736         for (i = 0; i < packets; i++) {
 737                 memcpy(&buf[2], fw->data + i * FW_BULKOUT_SIZE,
 738                        FW_BULKOUT_SIZE);
 739                 deb_fw(">>> ");
 740                 debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
 741                 ret = usb_bulk_msg(udev,
 742                                    usb_sndbulkpipe(udev, 0x02),
 743                                    buf, FW_BULKOUT_SIZE + 2, &act_len, 1000);
 744                 if (ret) {
 745                         err("firmware download failed at packet %d with code %d", i, ret);
 746                         return ret;
 747                 }
 748         }
 749         ret = af9005_boot_packet(udev, FW_CONFIRM, &reply);
 750         if (ret)
 751                 return ret;
 752         if (reply != (u8) (packets & 0xff)) {
 753                 err("after downloading firmware, FW_CONFIRM expected 0x%x, received 0x%x", packets & 0xff, reply);
 754                 return -EIO;
 755         }
 756         ret = af9005_boot_packet(udev, FW_BOOT, &reply);
 757         if (ret)
 758                 return ret;
 759         ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
 760         if (ret)
 761                 return ret;
 762         if (reply != 0x02) {
 763                 err("after downloading firmware, FW_CONFIG expected 0x02, received 0x%x", reply);
 764                 return -EIO;
 765         }
 766
 767         return 0;
 768
 769 }
 770
 771 int af9005_led_control(struct dvb_usb_device *d, int onoff)
 772 {
 773         struct af9005_device_state *st = d->priv;
 774         int temp, ret;
 775
 776         if (onoff && dvb_usb_af9005_led)
 777                 temp = 1;
 778         else
 779                 temp = 0;
 780         if (st->led_state != temp) {
 781                 ret =
 782                     af9005_write_register_bits(d, xd_p_reg_top_locken1,
 783                                                reg_top_locken1_pos,
 784                                                reg_top_locken1_len, temp);
 785                 if (ret)
 786                         return ret;
 787                 ret =
 788                     af9005_write_register_bits(d, xd_p_reg_top_lock1,
 789                                                reg_top_lock1_pos,
 790                                                reg_top_lock1_len, temp);
 791                 if (ret)
 792                         return ret;
 793                 st->led_state = temp;
 794         }
 795         return 0;
 796 }
 797
 798 static int af9005_frontend_attach(struct dvb_usb_adapter *adap)
 799 {
 800         u8 buf[8];
 801         int i;
 802
 803         /* without these calls the first commands after downloading
 804            the firmware fail. I put these calls here to simulate
 805            what it is done in dvb-usb-init.c.
 806          */
 807         struct usb_device *udev = adap->dev->udev;
 808         usb_clear_halt(udev, usb_sndbulkpipe(udev, 2));
 809         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 1));
 810         if (dvb_usb_af9005_dump_eeprom) {
 811                 printk("EEPROM DUMP\n");
 812                 for (i = 0; i < 255; i += 8) {
 813                         af9005_read_eeprom(adap->dev, i, buf, 8);
 814                         printk("ADDR %x ", i);
 815                         debug_dump(buf, 8, printk);
 816                 }
 817         }
 818         adap->fe_adap[0].fe = af9005_fe_attach(adap->dev);
 819         return 0;
 820 }
 821
 822 static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
 823 {
 824         struct af9005_device_state *st = d->priv;
 825         int ret, len;
 826
 827         u8 obuf[5];
 828         u8 ibuf[256];
 829
 830         *state = REMOTE_NO_KEY_PRESSED;
 831         if (rc_decode == NULL) {
 832                 /* it shouldn't never come here */
 833                 return 0;
 834         }
 835         /* deb_info("rc_query\n"); */
 836         obuf[0] = 3;            /* rest of packet length low */
 837         obuf[1] = 0;            /* rest of packet lentgh high */
 838         obuf[2] = 0x40;         /* read remote */
 839         obuf[3] = 1;            /* rest of packet length */
 840         obuf[4] = st->sequence++;       /* sequence number */
 841         ret = dvb_usb_generic_rw(d, obuf, 5, ibuf, 256, 0);
 842         if (ret) {
 843                 err("rc query failed");
 844                 return ret;
 845         }
 846         if (ibuf[2] != 0x41) {
 847                 err("rc query bad header.");
 848                 return -EIO;
 849         }
 850         if (ibuf[4] != obuf[4]) {
 851                 err("rc query bad sequence.");
 852                 return -EIO;
 853         }
 854         len = ibuf[5];
 855         if (len > 246) {
 856                 err("rc query invalid length");
 857                 return -EIO;
 858         }
 859         if (len > 0) {
 860                 deb_rc("rc data (%d) ", len);
 861                 debug_dump((ibuf + 6), len, deb_rc);
 862                 ret = rc_decode(d, &ibuf[6], len, event, state);
 863                 if (ret) {
 864                         err("rc_decode failed");
 865                         return ret;
 866                 } else {
 867                         deb_rc("rc_decode state %x event %x\n", *state, *event);
 868                         if (*state == REMOTE_KEY_REPEAT)
 869                                 *event = d->last_event;
 870                 }
 871         }
 872         return 0;
 873 }
 874
 875 static int af9005_power_ctrl(struct dvb_usb_device *d, int onoff)
 876 {
 877
 878         return 0;
 879 }
 880
 881 static int af9005_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
 882 {
 883         int ret;
 884         deb_info("pid filter control  onoff %d\n", onoff);
 885         if (onoff) {
 886                 ret =
 887                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
 888                 if (ret)
 889                         return ret;
 890                 ret =
 891                     af9005_write_register_bits(adap->dev,
 892                                                XD_MP2IF_DMX_CTRL, 1, 1, 1);
 893                 if (ret)
 894                         return ret;
 895                 ret =
 896                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
 897         } else
 898                 ret =
 899                     af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 0);
 900         if (ret)
 901                 return ret;
 902         deb_info("pid filter control ok\n");
 903         return 0;
 904 }
 905
 906 static int af9005_pid_filter(struct dvb_usb_adapter *adap, int index,
 907                              u16 pid, int onoff)
 908 {
 909         u8 cmd = index & 0x1f;
 910         int ret;
 911         deb_info("set pid filter, index %d, pid %x, onoff %d\n", index,
 912                  pid, onoff);
 913         if (onoff) {
 914                 /* cannot use it as pid_filter_ctrl since it has to be done
 915                    before setting the first pid */
 916                 if (adap->feedcount == 1) {
 917                         deb_info("first pid set, enable pid table\n");
 918                         ret = af9005_pid_filter_control(adap, onoff);
 919                         if (ret)
 920                                 return ret;
 921                 }
 922                 ret =
 923                     af9005_write_ofdm_register(adap->dev,
 924                                                XD_MP2IF_PID_DATA_L,
 925                                                (u8) (pid & 0xff));
 926                 if (ret)
 927                         return ret;
 928                 ret =
 929                     af9005_write_ofdm_register(adap->dev,
 930                                                XD_MP2IF_PID_DATA_H,
 931                                                (u8) (pid >> 8));
 932                 if (ret)
 933                         return ret;
 934                 cmd |= 0x20 | 0x40;
 935         } else {
 936                 if (adap->feedcount == 0) {
 937                         deb_info("last pid unset, disable pid table\n");
 938                         ret = af9005_pid_filter_control(adap, onoff);
 939                         if (ret)
 940                                 return ret;
 941                 }
 942         }
 943         ret = af9005_write_ofdm_register(adap->dev, XD_MP2IF_PID_IDX, cmd);
 944         if (ret)
 945                 return ret;
 946         deb_info("set pid ok\n");
 947         return 0;
 948 }
 949
 950 static int af9005_identify_state(struct usb_device *udev,
 951                                  struct dvb_usb_device_properties *props,
 952                                  struct dvb_usb_device_description **desc,
 953                                  int *cold)
 954 {
 955         int ret;
 956         u8 reply;
 957         ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
 958         if (ret)
 959                 return ret;
 960         deb_info("result of FW_CONFIG in identify state %d\n", reply);
 961         if (reply == 0x01)
 962                 *cold = 1;
 963         else if (reply == 0x02)
 964                 *cold = 0;
 965         else
 966                 return -EIO;
 967         deb_info("Identify state cold = %d\n", *cold);
 968         return 0;
 969 }
 970
 971 static struct dvb_usb_device_properties af9005_properties;
 972
 973 static int af9005_usb_probe(struct usb_interface *intf,
 974                             const struct usb_device_id *id)
 975 {
 976         return dvb_usb_device_init(intf, &af9005_properties,
 977                                    THIS_MODULE, NULL, adapter_nr);
 978 }
 979
 980 enum af9005_usb_table_entry {
 981         AFATECH_AF9005,
 982         TERRATEC_AF9005,
 983         ANSONIC_AF9005,
 984 };
 985
 986 static struct usb_device_id af9005_usb_table[] = {
 987         [AFATECH_AF9005] = {USB_DEVICE(USB_VID_AFATECH,
 988                                 USB_PID_AFATECH_AF9005)},
 989         [TERRATEC_AF9005] = {USB_DEVICE(USB_VID_TERRATEC,
 990                                 USB_PID_TERRATEC_CINERGY_T_USB_XE)},
 991         [ANSONIC_AF9005] = {USB_DEVICE(USB_VID_ANSONIC,
 992                                 USB_PID_ANSONIC_DVBT_USB)},
 993         { }
 994 };
 995
 996 MODULE_DEVICE_TABLE(usb, af9005_usb_table);
 997
 998 static struct dvb_usb_device_properties af9005_properties = {
 999         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
1000
1001         .usb_ctrl = DEVICE_SPECIFIC,
1002         .firmware = "af9005.fw",
1003         .download_firmware = af9005_download_firmware,
1004         .no_reconnect = 1,
1005
1006         .size_of_priv = sizeof(struct af9005_device_state),
1007
1008         .num_adapters = 1,
1009         .adapter = {
1010                     {
1011                     .num_frontends = 1,
1012                     .fe = {{
1013                      .caps =
1014                      DVB_USB_ADAP_HAS_PID_FILTER |
1015                      DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1016                      .pid_filter_count = 32,
1017                      .pid_filter = af9005_pid_filter,
1018                      /* .pid_filter_ctrl = af9005_pid_filter_control, */
1019                      .frontend_attach = af9005_frontend_attach,
1020                      /* .tuner_attach     = af9005_tuner_attach, */
1021                      /* parameter for the MPEG2-data transfer */
1022                      .stream = {
1023                                 .type = USB_BULK,
1024                                 .count = 10,
1025                                 .endpoint = 0x04,
1026                                 .u = {
1027                                       .bulk = {
1028                                                .buffersize = 4096,      /* actual size seen is 3948 */
1029                                                }
1030                                       }
1031                                 },
1032                      }},
1033                      }
1034                     },
1035         .power_ctrl = af9005_power_ctrl,
1036         .identify_state = af9005_identify_state,
1037
1038         .i2c_algo = &af9005_i2c_algo,
1039
1040         .rc.legacy = {
1041                 .rc_interval = 200,
1042                 .rc_map_table = NULL,
1043                 .rc_map_size = 0,
1044                 .rc_query = af9005_rc_query,
1045         },
1046
1047         .generic_bulk_ctrl_endpoint          = 2,
1048         .generic_bulk_ctrl_endpoint_response = 1,
1049
1050         .num_device_descs = 3,
1051         .devices = {
1052                     {.name = "Afatech DVB-T USB1.1 stick",
1053                      .cold_ids = {&af9005_usb_table[AFATECH_AF9005], NULL},
1054                      .warm_ids = {NULL},
1055                      },
1056                     {.name = "TerraTec Cinergy T USB XE",
1057                      .cold_ids = {&af9005_usb_table[TERRATEC_AF9005], NULL},
1058                      .warm_ids = {NULL},
1059                      },
1060                     {.name = "Ansonic DVB-T USB1.1 stick",
1061                      .cold_ids = {&af9005_usb_table[ANSONIC_AF9005], NULL},
1062                      .warm_ids = {NULL},
1063                      },
1064                     {NULL},
1065                     }
1066 };
1067
1068 /* usb specific object needed to register this driver with the usb subsystem */
1069 static struct usb_driver af9005_usb_driver = {
1070         .name = "dvb_usb_af9005",
1071         .probe = af9005_usb_probe,
1072         .disconnect = dvb_usb_device_exit,
1073         .id_table = af9005_usb_table,
1074 };
1075
1076 /* module stuff */
1077 static int __init af9005_usb_module_init(void)
1078 {
1079         int result;
1080         if ((result = usb_register(&af9005_usb_driver))) {
1081                 err("usb_register failed. (%d)", result);
1082                 return result;
1083         }
1084 #if IS_MODULE(CONFIG_DVB_USB_AF9005) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
1085         /* FIXME: convert to todays kernel IR infrastructure */
1086         rc_decode = symbol_request(af9005_rc_decode);
1087         rc_keys = symbol_request(rc_map_af9005_table);
1088         rc_keys_size = symbol_request(rc_map_af9005_table_size);
1089 #endif
1090         if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) {
1091                 err("af9005_rc_decode function not found, disabling remote");
1092                 af9005_properties.rc.legacy.rc_query = NULL;
1093         } else {
1094                 af9005_properties.rc.legacy.rc_map_table = rc_keys;
1095                 af9005_properties.rc.legacy.rc_map_size = *rc_keys_size;
1096         }
1097
1098         return 0;
1099 }
1100
1101 static void __exit af9005_usb_module_exit(void)
1102 {
1103         /* release rc decode symbols */
1104         if (rc_decode != NULL)
1105                 symbol_put(af9005_rc_decode);
1106         if (rc_keys != NULL)
1107                 symbol_put(rc_map_af9005_table);
1108         if (rc_keys_size != NULL)
1109                 symbol_put(rc_map_af9005_table_size);
1110         /* deregister this driver from the USB subsystem */
1111         usb_deregister(&af9005_usb_driver);
1112 }
1113
1114 module_init(af9005_usb_module_init);
1115 module_exit(af9005_usb_module_exit);
1116
1117 MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
1118 MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick");
1119 MODULE_VERSION("1.0");
1120 MODULE_LICENSE("GPL");