Logo Search packages:      
Sourcecode: linux version File versions  Download package

af9005.c

/* DVB USB compliant Linux driver for the Afatech 9005
 * USB1.1 DVB-T receiver.
 *
 * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
 *
 * Thanks to Afatech who kindly provided information.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * see Documentation/dvb/REDME.dvb-usb for more information
 */
#include "af9005.h"

/* debug */
int dvb_usb_af9005_debug;
module_param_named(debug, dvb_usb_af9005_debug, int, 0644);
MODULE_PARM_DESC(debug,
             "set debugging level (1=info,xfer=2,rc=4,reg=8,i2c=16,fw=32 (or-able))."
             DVB_USB_DEBUG_STATUS);
/* enable obnoxious led */
int dvb_usb_af9005_led = 1;
module_param_named(led, dvb_usb_af9005_led, bool, 0644);
MODULE_PARM_DESC(led, "enable led (default: 1).");

/* eeprom dump */
int dvb_usb_af9005_dump_eeprom = 0;
module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0);
MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom.");

/* remote control decoder */
int (*rc_decode) (struct dvb_usb_device * d, u8 * data, int len, u32 * event,
              int *state);
void *rc_keys;
int *rc_keys_size;

u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };

struct af9005_device_state {
      u8 sequence;
      int led_state;
};

int af9005_usb_generic_rw(struct dvb_usb_device *d, u8 * wbuf, u16 wlen,
                    u8 * rbuf, u16 rlen, int delay_ms)
{
      int actlen, ret = -ENOMEM;

      if (wbuf == NULL || wlen == 0)
            return -EINVAL;

      if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
            return ret;

      deb_xfer(">>> ");
      debug_dump(wbuf, wlen, deb_xfer);

      ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
                                        2), wbuf, wlen,
                     &actlen, 2000);

      if (ret)
            err("bulk message failed: %d (%d/%d)", ret, wlen, actlen);
      else
            ret = actlen != wlen ? -1 : 0;

      /* an answer is expected, and no error before */
      if (!ret && rbuf && rlen) {
            if (delay_ms)
                  msleep(delay_ms);

            ret = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev,
                                              0x01), rbuf,
                           rlen, &actlen, 2000);

            if (ret)
                  err("recv bulk message failed: %d", ret);
            else {
                  deb_xfer("<<< ");
                  debug_dump(rbuf, actlen, deb_xfer);
            }
      }

      mutex_unlock(&d->usb_mutex);
      return ret;
}

int af9005_usb_generic_write(struct dvb_usb_device *d, u8 * buf, u16 len)
{
      return af9005_usb_generic_rw(d, buf, len, NULL, 0, 0);
}

int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
                        int readwrite, int type, u8 * values, int len)
{
      struct af9005_device_state *st = d->priv;
      u8 obuf[16] = { 0 };
      u8 ibuf[17] = { 0 };
      u8 command;
      int i;
      int ret;

      if (len < 1) {
            err("generic read/write, less than 1 byte. Makes no sense.");
            return -EINVAL;
      }
      if (len > 8) {
            err("generic read/write, more than 8 bytes. Not supported.");
            return -EINVAL;
      }

      obuf[0] = 14;           /* rest of buffer length low */
      obuf[1] = 0;            /* rest of buffer length high */

      obuf[2] = AF9005_REGISTER_RW; /* register operation */
      obuf[3] = 12;           /* rest of buffer length */

      obuf[4] = st->sequence++;     /* sequence number */

      obuf[5] = (u8) (reg >> 8);    /* register address */
      obuf[6] = (u8) (reg & 0xff);

      if (type == AF9005_OFDM_REG) {
            command = AF9005_CMD_OFDM_REG;
      } else {
            command = AF9005_CMD_TUNER;
      }

      if (len > 1)
            command |=
                AF9005_CMD_BURST | AF9005_CMD_AUTOINC | (len - 1) << 3;
      command |= readwrite;
      if (readwrite == AF9005_CMD_WRITE)
            for (i = 0; i < len; i++)
                  obuf[8 + i] = values[i];
      else if (type == AF9005_TUNER_REG)
            /* read command for tuner, the first byte contains the i2c address */
            obuf[8] = values[0];
      obuf[7] = command;

      ret = af9005_usb_generic_rw(d, obuf, 16, ibuf, 17, 0);
      if (ret)
            return ret;

      /* sanity check */
      if (ibuf[2] != AF9005_REGISTER_RW_ACK) {
            err("generic read/write, wrong reply code.");
            return -EIO;
      }
      if (ibuf[3] != 0x0d) {
            err("generic read/write, wrong length in reply.");
            return -EIO;
      }
      if (ibuf[4] != obuf[4]) {
            err("generic read/write, wrong sequence in reply.");
            return -EIO;
      }
      /*
         Windows driver doesn't check these fields, in fact sometimes
         the register in the reply is different that what has been sent

         if (ibuf[5] != obuf[5] || ibuf[6] != obuf[6]) {
         err("generic read/write, wrong register in reply.");
         return -EIO;
         }
         if (ibuf[7] != command) {
         err("generic read/write wrong command in reply.");
         return -EIO;
         }
       */
      if (ibuf[16] != 0x01) {
            err("generic read/write wrong status code in reply.");
            return -EIO;
      }
      if (readwrite == AF9005_CMD_READ)
            for (i = 0; i < len; i++)
                  values[i] = ibuf[8 + i];

      return 0;

}

int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 * value)
{
      int ret;
      deb_reg("read register %x ", reg);
      ret = af9005_generic_read_write(d, reg,
                              AF9005_CMD_READ, AF9005_OFDM_REG,
                              value, 1);
      if (ret)
            deb_reg("failed\n");
      else
            deb_reg("value %x\n", *value);
      return ret;
}

int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg,
                         u8 * values, int len)
{
      int ret;
      deb_reg("read %d registers %x ", len, reg);
      ret = af9005_generic_read_write(d, reg,
                              AF9005_CMD_READ, AF9005_OFDM_REG,
                              values, len);
      if (ret)
            deb_reg("failed\n");
      else
            debug_dump(values, len, deb_reg);
      return ret;
}

int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 value)
{
      int ret;
      u8 temp = value;
      deb_reg("write register %x value %x ", reg, value);
      ret = af9005_generic_read_write(d, reg,
                              AF9005_CMD_WRITE, AF9005_OFDM_REG,
                              &temp, 1);
      if (ret)
            deb_reg("failed\n");
      else
            deb_reg("ok\n");
      return ret;
}

int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg,
                        u8 * values, int len)
{
      int ret;
      deb_reg("write %d registers %x values ", len, reg);
      debug_dump(values, len, deb_reg);

      ret = af9005_generic_read_write(d, reg,
                              AF9005_CMD_WRITE, AF9005_OFDM_REG,
                              values, len);
      if (ret)
            deb_reg("failed\n");
      else
            deb_reg("ok\n");
      return ret;
}

int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
                        u8 len, u8 * value)
{
      u8 temp;
      int ret;
      deb_reg("read bits %x %x %x", reg, pos, len);
      ret = af9005_read_ofdm_register(d, reg, &temp);
      if (ret) {
            deb_reg(" failed\n");
            return ret;
      }
      *value = (temp >> pos) & regmask[len - 1];
      deb_reg(" value %x\n", *value);
      return 0;

}

int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
                         u8 len, u8 value)
{
      u8 temp, mask;
      int ret;
      deb_reg("write bits %x %x %x value %x\n", reg, pos, len, value);
      if (pos == 0 && len == 8)
            return af9005_write_ofdm_register(d, reg, value);
      ret = af9005_read_ofdm_register(d, reg, &temp);
      if (ret)
            return ret;
      mask = regmask[len - 1] << pos;
      temp = (temp & ~mask) | ((value << pos) & mask);
      return af9005_write_ofdm_register(d, reg, temp);

}

static int af9005_usb_read_tuner_registers(struct dvb_usb_device *d,
                                 u16 reg, u8 * values, int len)
{
      return af9005_generic_read_write(d, reg,
                               AF9005_CMD_READ, AF9005_TUNER_REG,
                               values, len);
}

static int af9005_usb_write_tuner_registers(struct dvb_usb_device *d,
                                  u16 reg, u8 * values, int len)
{
      return af9005_generic_read_write(d, reg,
                               AF9005_CMD_WRITE,
                               AF9005_TUNER_REG, values, len);
}

int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg,
                         u8 * values, int len)
{
      /* don't let the name of this function mislead you: it's just used
         as an interface from the firmware to the i2c bus. The actual
         i2c addresses are contained in the data */
      int ret, i, done = 0, fail = 0;
      u8 temp;
      ret = af9005_usb_write_tuner_registers(d, reg, values, len);
      if (ret)
            return ret;
      if (reg != 0xffff) {
            /* check if write done (0xa40d bit 1) or fail (0xa40d bit 2) */
            for (i = 0; i < 200; i++) {
                  ret =
                      af9005_read_ofdm_register(d,
                                          xd_I2C_i2c_m_status_wdat_done,
                                          &temp);
                  if (ret)
                        return ret;
                  done = temp & (regmask[i2c_m_status_wdat_done_len - 1]
                               << i2c_m_status_wdat_done_pos);
                  if (done)
                        break;
                  fail = temp & (regmask[i2c_m_status_wdat_fail_len - 1]
                               << i2c_m_status_wdat_fail_pos);
                  if (fail)
                        break;
                  msleep(50);
            }
            if (i == 200)
                  return -ETIMEDOUT;
            if (fail) {
                  /* clear write fail bit */
                  af9005_write_register_bits(d,
                                       xd_I2C_i2c_m_status_wdat_fail,
                                       i2c_m_status_wdat_fail_pos,
                                       i2c_m_status_wdat_fail_len,
                                       1);
                  return -EIO;
            }
            /* clear write done bit */
            ret =
                af9005_write_register_bits(d,
                                     xd_I2C_i2c_m_status_wdat_fail,
                                     i2c_m_status_wdat_done_pos,
                                     i2c_m_status_wdat_done_len, 1);
            if (ret)
                  return ret;
      }
      return 0;
}

int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, u8 addr,
                        u8 * values, int len)
{
      /* don't let the name of this function mislead you: it's just used
         as an interface from the firmware to the i2c bus. The actual
         i2c addresses are contained in the data */
      int ret, i;
      u8 temp, buf[2];

      buf[0] = addr;          /* tuner i2c address */
      buf[1] = values[0];     /* tuner register */

      values[0] = addr + 0x01;      /* i2c read address */

      if (reg == APO_REG_I2C_RW_SILICON_TUNER) {
            /* write tuner i2c address to tuner, 0c00c0 undocumented, found by sniffing */
            ret = af9005_write_tuner_registers(d, 0x00c0, buf, 2);
            if (ret)
                  return ret;
      }

      /* send read command to ofsm */
      ret = af9005_usb_read_tuner_registers(d, reg, values, 1);
      if (ret)
            return ret;

      /* check if read done */
      for (i = 0; i < 200; i++) {
            ret = af9005_read_ofdm_register(d, 0xa408, &temp);
            if (ret)
                  return ret;
            if (temp & 0x01)
                  break;
            msleep(50);
      }
      if (i == 200)
            return -ETIMEDOUT;

      /* clear read done bit (by writing 1) */
      ret = af9005_write_ofdm_register(d, xd_I2C_i2c_m_data8, 1);
      if (ret)
            return ret;

      /* get read data (available from 0xa400) */
      for (i = 0; i < len; i++) {
            ret = af9005_read_ofdm_register(d, 0xa400 + i, &temp);
            if (ret)
                  return ret;
            values[i] = temp;
      }
      return 0;
}

static int af9005_i2c_write(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
                      u8 * data, int len)
{
      int ret, i;
      u8 buf[3];
      deb_i2c("i2c_write i2caddr %x, reg %x, len %d data ", i2caddr,
            reg, len);
      debug_dump(data, len, deb_i2c);

      for (i = 0; i < len; i++) {
            buf[0] = i2caddr;
            buf[1] = reg + (u8) i;
            buf[2] = data[i];
            ret =
                af9005_write_tuner_registers(d,
                                     APO_REG_I2C_RW_SILICON_TUNER,
                                     buf, 3);
            if (ret) {
                  deb_i2c("i2c_write failed\n");
                  return ret;
            }
      }
      deb_i2c("i2c_write ok\n");
      return 0;
}

static int af9005_i2c_read(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
                     u8 * data, int len)
{
      int ret, i;
      u8 temp;
      deb_i2c("i2c_read i2caddr %x, reg %x, len %d\n ", i2caddr, reg, len);
      for (i = 0; i < len; i++) {
            temp = reg + i;
            ret =
                af9005_read_tuner_registers(d,
                                    APO_REG_I2C_RW_SILICON_TUNER,
                                    i2caddr, &temp, 1);
            if (ret) {
                  deb_i2c("i2c_read failed\n");
                  return ret;
            }
            data[i] = temp;
      }
      deb_i2c("i2c data read: ");
      debug_dump(data, len, deb_i2c);
      return 0;
}

static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
                     int num)
{
      /* only implements what the mt2060 module does, don't know how
         to make it really generic */
      struct dvb_usb_device *d = i2c_get_adapdata(adap);
      int ret;
      u8 reg, addr;
      u8 *value;

      if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
            return -EAGAIN;

      if (num > 2)
            warn("more than 2 i2c messages at a time is not handled yet. TODO.");

      if (num == 2) {
            /* reads a single register */
            reg = *msg[0].buf;
            addr = msg[0].addr;
            value = msg[1].buf;
            ret = af9005_i2c_read(d, addr, reg, value, 1);
            if (ret == 0)
                  ret = 2;
      } else {
            /* write one or more registers */
            reg = msg[0].buf[0];
            addr = msg[0].addr;
            value = &msg[0].buf[1];
            ret = af9005_i2c_write(d, addr, reg, value, msg[0].len - 1);
            if (ret == 0)
                  ret = 1;
      }

      mutex_unlock(&d->i2c_mutex);
      return ret;
}

static u32 af9005_i2c_func(struct i2c_adapter *adapter)
{
      return I2C_FUNC_I2C;
}

static struct i2c_algorithm af9005_i2c_algo = {
      .master_xfer = af9005_i2c_xfer,
      .functionality = af9005_i2c_func,
};

int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
                  int wlen, u8 * rbuf, int rlen)
{
      struct af9005_device_state *st = d->priv;

      int ret, i, packet_len;
      u8 buf[64];
      u8 ibuf[64];

      if (wlen < 0) {
            err("send command, wlen less than 0 bytes. Makes no sense.");
            return -EINVAL;
      }
      if (wlen > 54) {
            err("send command, wlen more than 54 bytes. Not supported.");
            return -EINVAL;
      }
      if (rlen > 54) {
            err("send command, rlen more than 54 bytes. Not supported.");
            return -EINVAL;
      }
      packet_len = wlen + 5;
      buf[0] = (u8) (packet_len & 0xff);
      buf[1] = (u8) ((packet_len & 0xff00) >> 8);

      buf[2] = 0x26;          /* packet type */
      buf[3] = wlen + 3;
      buf[4] = st->sequence++;
      buf[5] = command;
      buf[6] = wlen;
      for (i = 0; i < wlen; i++)
            buf[7 + i] = wbuf[i];
      ret = af9005_usb_generic_rw(d, buf, wlen + 7, ibuf, rlen + 7, 0);
      if (ret)
            return ret;
      if (ibuf[2] != 0x27) {
            err("send command, wrong reply code.");
            return -EIO;
      }
      if (ibuf[4] != buf[4]) {
            err("send command, wrong sequence in reply.");
            return -EIO;
      }
      if (ibuf[5] != 0x01) {
            err("send command, wrong status code in reply.");
            return -EIO;
      }
      if (ibuf[6] != rlen) {
            err("send command, invalid data length in reply.");
            return -EIO;
      }
      for (i = 0; i < rlen; i++)
            rbuf[i] = ibuf[i + 7];
      return 0;
}

int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
                   int len)
{
      struct af9005_device_state *st = d->priv;
      u8 obuf[16], ibuf[14];
      int ret, i;

      memset(obuf, 0, sizeof(obuf));
      memset(ibuf, 0, sizeof(ibuf));

      obuf[0] = 14;           /* length of rest of packet low */
      obuf[1] = 0;            /* length of rest of packer high */

      obuf[2] = 0x2a;         /* read/write eeprom */

      obuf[3] = 12;           /* size */

      obuf[4] = st->sequence++;

      obuf[5] = 0;            /* read */

      obuf[6] = len;
      obuf[7] = address;
      ret = af9005_usb_generic_rw(d, obuf, 16, ibuf, 14, 0);
      if (ret)
            return ret;
      if (ibuf[2] != 0x2b) {
            err("Read eeprom, invalid reply code");
            return -EIO;
      }
      if (ibuf[3] != 10) {
            err("Read eeprom, invalid reply length");
            return -EIO;
      }
      if (ibuf[4] != obuf[4]) {
            err("Read eeprom, wrong sequence in reply ");
            return -EIO;
      }
      if (ibuf[5] != 1) {
            err("Read eeprom, wrong status in reply ");
            return -EIO;
      }
      for (i = 0; i < len; i++) {
            values[i] = ibuf[6 + i];
      }
      return 0;
}

static int af9005_boot_packet(struct usb_device *udev, int type, u8 * reply)
{
      u8 buf[FW_BULKOUT_SIZE + 2];
      u16 checksum;
      int act_len, i, ret;
      memset(buf, 0, sizeof(buf));
      buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
      buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
      switch (type) {
      case FW_CONFIG:
            buf[2] = 0x11;
            buf[3] = 0x04;
            buf[4] = 0x00;    /* sequence number, original driver doesn't increment it here */
            buf[5] = 0x03;
            checksum = buf[4] + buf[5];
            buf[6] = (u8) ((checksum >> 8) & 0xff);
            buf[7] = (u8) (checksum & 0xff);
            break;
      case FW_CONFIRM:
            buf[2] = 0x11;
            buf[3] = 0x04;
            buf[4] = 0x00;    /* sequence number, original driver doesn't increment it here */
            buf[5] = 0x01;
            checksum = buf[4] + buf[5];
            buf[6] = (u8) ((checksum >> 8) & 0xff);
            buf[7] = (u8) (checksum & 0xff);
            break;
      case FW_BOOT:
            buf[2] = 0x10;
            buf[3] = 0x08;
            buf[4] = 0x00;    /* sequence number, original driver doesn't increment it here */
            buf[5] = 0x97;
            buf[6] = 0xaa;
            buf[7] = 0x55;
            buf[8] = 0xa5;
            buf[9] = 0x5a;
            checksum = 0;
            for (i = 4; i <= 9; i++)
                  checksum += buf[i];
            buf[10] = (u8) ((checksum >> 8) & 0xff);
            buf[11] = (u8) (checksum & 0xff);
            break;
      default:
            err("boot packet invalid boot packet type");
            return -EINVAL;
      }
      deb_fw(">>> ");
      debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);

      ret = usb_bulk_msg(udev,
                     usb_sndbulkpipe(udev, 0x02),
                     buf, FW_BULKOUT_SIZE + 2, &act_len, 2000);
      if (ret)
            err("boot packet bulk message failed: %d (%d/%d)", ret,
                FW_BULKOUT_SIZE + 2, act_len);
      else
            ret = act_len != FW_BULKOUT_SIZE + 2 ? -1 : 0;
      if (ret)
            return ret;
      memset(buf, 0, 9);
      ret = usb_bulk_msg(udev,
                     usb_rcvbulkpipe(udev, 0x01), buf, 9, &act_len, 2000);
      if (ret) {
            err("boot packet recv bulk message failed: %d", ret);
            return ret;
      }
      deb_fw("<<< ");
      debug_dump(buf, act_len, deb_fw);
      checksum = 0;
      switch (type) {
      case FW_CONFIG:
            if (buf[2] != 0x11) {
                  err("boot bad config header.");
                  return -EIO;
            }
            if (buf[3] != 0x05) {
                  err("boot bad config size.");
                  return -EIO;
            }
            if (buf[4] != 0x00) {
                  err("boot bad config sequence.");
                  return -EIO;
            }
            if (buf[5] != 0x04) {
                  err("boot bad config subtype.");
                  return -EIO;
            }
            for (i = 4; i <= 6; i++)
                  checksum += buf[i];
            if (buf[7] * 256 + buf[8] != checksum) {
                  err("boot bad config checksum.");
                  return -EIO;
            }
            *reply = buf[6];
            break;
      case FW_CONFIRM:
            if (buf[2] != 0x11) {
                  err("boot bad confirm header.");
                  return -EIO;
            }
            if (buf[3] != 0x05) {
                  err("boot bad confirm size.");
                  return -EIO;
            }
            if (buf[4] != 0x00) {
                  err("boot bad confirm sequence.");
                  return -EIO;
            }
            if (buf[5] != 0x02) {
                  err("boot bad confirm subtype.");
                  return -EIO;
            }
            for (i = 4; i <= 6; i++)
                  checksum += buf[i];
            if (buf[7] * 256 + buf[8] != checksum) {
                  err("boot bad confirm checksum.");
                  return -EIO;
            }
            *reply = buf[6];
            break;
      case FW_BOOT:
            if (buf[2] != 0x10) {
                  err("boot bad boot header.");
                  return -EIO;
            }
            if (buf[3] != 0x05) {
                  err("boot bad boot size.");
                  return -EIO;
            }
            if (buf[4] != 0x00) {
                  err("boot bad boot sequence.");
                  return -EIO;
            }
            if (buf[5] != 0x01) {
                  err("boot bad boot pattern 01.");
                  return -EIO;
            }
            if (buf[6] != 0x10) {
                  err("boot bad boot pattern 10.");
                  return -EIO;
            }
            for (i = 4; i <= 6; i++)
                  checksum += buf[i];
            if (buf[7] * 256 + buf[8] != checksum) {
                  err("boot bad boot checksum.");
                  return -EIO;
            }
            break;

      }

      return 0;
}

int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
{
      int i, packets, ret, act_len;

      u8 buf[FW_BULKOUT_SIZE + 2];
      u8 reply;

      ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
      if (ret)
            return ret;
      if (reply != 0x01) {
            err("before downloading firmware, FW_CONFIG expected 0x01, received 0x%x", reply);
            return -EIO;
      }
      packets = fw->size / FW_BULKOUT_SIZE;
      buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
      buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
      for (i = 0; i < packets; i++) {
            memcpy(&buf[2], fw->data + i * FW_BULKOUT_SIZE,
                   FW_BULKOUT_SIZE);
            deb_fw(">>> ");
            debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
            ret = usb_bulk_msg(udev,
                           usb_sndbulkpipe(udev, 0x02),
                           buf, FW_BULKOUT_SIZE + 2, &act_len, 1000);
            if (ret) {
                  err("firmware download failed at packet %d with code %d", i, ret);
                  return ret;
            }
      }
      ret = af9005_boot_packet(udev, FW_CONFIRM, &reply);
      if (ret)
            return ret;
      if (reply != (u8) (packets & 0xff)) {
            err("after downloading firmware, FW_CONFIRM expected 0x%x, received 0x%x", packets & 0xff, reply);
            return -EIO;
      }
      ret = af9005_boot_packet(udev, FW_BOOT, &reply);
      if (ret)
            return ret;
      ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
      if (ret)
            return ret;
      if (reply != 0x02) {
            err("after downloading firmware, FW_CONFIG expected 0x02, received 0x%x", reply);
            return -EIO;
      }

      return 0;

}

int af9005_led_control(struct dvb_usb_device *d, int onoff)
{
      struct af9005_device_state *st = d->priv;
      int temp, ret;

      if (onoff && dvb_usb_af9005_led)
            temp = 1;
      else
            temp = 0;
      if (st->led_state != temp) {
            ret =
                af9005_write_register_bits(d, xd_p_reg_top_locken1,
                                     reg_top_locken1_pos,
                                     reg_top_locken1_len, temp);
            if (ret)
                  return ret;
            ret =
                af9005_write_register_bits(d, xd_p_reg_top_lock1,
                                     reg_top_lock1_pos,
                                     reg_top_lock1_len, temp);
            if (ret)
                  return ret;
            st->led_state = temp;
      }
      return 0;
}

static int af9005_frontend_attach(struct dvb_usb_adapter *adap)
{
      u8 buf[8];
      int i;

      /* without these calls the first commands after downloading
         the firmware fail. I put these calls here to simulate
         what it is done in dvb-usb-init.c.
       */
      struct usb_device *udev = adap->dev->udev;
      usb_clear_halt(udev, usb_sndbulkpipe(udev, 2));
      usb_clear_halt(udev, usb_rcvbulkpipe(udev, 1));
      if (dvb_usb_af9005_dump_eeprom) {
            printk("EEPROM DUMP\n");
            for (i = 0; i < 255; i += 8) {
                  af9005_read_eeprom(adap->dev, i, buf, 8);
                  printk("ADDR %x ", i);
                  debug_dump(buf, 8, printk);
            }
      }
      adap->fe = af9005_fe_attach(adap->dev);
      return 0;
}

static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
{
      struct af9005_device_state *st = d->priv;
      int ret, len;

      u8 obuf[5];
      u8 ibuf[256];

      *state = REMOTE_NO_KEY_PRESSED;
      if (rc_decode == NULL) {
            /* it shouldn't never come here */
            return 0;
      }
      /* deb_info("rc_query\n"); */
      obuf[0] = 3;            /* rest of packet length low */
      obuf[1] = 0;            /* rest of packet lentgh high */
      obuf[2] = 0x40;         /* read remote */
      obuf[3] = 1;            /* rest of packet length */
      obuf[4] = st->sequence++;     /* sequence number */
      ret = af9005_usb_generic_rw(d, obuf, 5, ibuf, 256, 0);
      if (ret) {
            err("rc query failed");
            return ret;
      }
      if (ibuf[2] != 0x41) {
            err("rc query bad header.");
            return -EIO;
      }
      if (ibuf[4] != obuf[4]) {
            err("rc query bad sequence.");
            return -EIO;
      }
      len = ibuf[5];
      if (len > 246) {
            err("rc query invalid length");
            return -EIO;
      }
      if (len > 0) {
            deb_rc("rc data (%d) ", len);
            debug_dump((ibuf + 6), len, deb_rc);
            ret = rc_decode(d, &ibuf[6], len, event, state);
            if (ret) {
                  err("rc_decode failed");
                  return ret;
            } else {
                  deb_rc("rc_decode state %x event %x\n", *state, *event);
                  if (*state == REMOTE_KEY_REPEAT)
                        *event = d->last_event;
            }
      }
      return 0;
}

static int af9005_power_ctrl(struct dvb_usb_device *d, int onoff)
{

      return 0;
}

static int af9005_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
{
      int ret;
      deb_info("pid filter control  onoff %d\n", onoff);
      if (onoff) {
            ret =
                af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
            if (ret)
                  return ret;
            ret =
                af9005_write_register_bits(adap->dev,
                                     XD_MP2IF_DMX_CTRL, 1, 1, 1);
            if (ret)
                  return ret;
            ret =
                af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
      } else
            ret =
                af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 0);
      if (ret)
            return ret;
      deb_info("pid filter control ok\n");
      return 0;
}

static int af9005_pid_filter(struct dvb_usb_adapter *adap, int index,
                       u16 pid, int onoff)
{
      u8 cmd = index & 0x1f;
      int ret;
      deb_info("set pid filter, index %d, pid %x, onoff %d\n", index,
             pid, onoff);
      if (onoff) {
            /* cannot use it as pid_filter_ctrl since it has to be done
               before setting the first pid */
            if (adap->feedcount == 1) {
                  deb_info("first pid set, enable pid table\n");
                  ret = af9005_pid_filter_control(adap, onoff);
                  if (ret)
                        return ret;
            }
            ret =
                af9005_write_ofdm_register(adap->dev,
                                     XD_MP2IF_PID_DATA_L,
                                     (u8) (pid & 0xff));
            if (ret)
                  return ret;
            ret =
                af9005_write_ofdm_register(adap->dev,
                                     XD_MP2IF_PID_DATA_H,
                                     (u8) (pid >> 8));
            if (ret)
                  return ret;
            cmd |= 0x20 | 0x40;
      } else {
            if (adap->feedcount == 0) {
                  deb_info("last pid unset, disable pid table\n");
                  ret = af9005_pid_filter_control(adap, onoff);
                  if (ret)
                        return ret;
            }
      }
      ret = af9005_write_ofdm_register(adap->dev, XD_MP2IF_PID_IDX, cmd);
      if (ret)
            return ret;
      deb_info("set pid ok\n");
      return 0;
}

static int af9005_identify_state(struct usb_device *udev,
                         struct dvb_usb_device_properties *props,
                         struct dvb_usb_device_description **desc,
                         int *cold)
{
      int ret;
      u8 reply;
      ret = af9005_boot_packet(udev, FW_CONFIG, &reply);
      if (ret)
            return ret;
      deb_info("result of FW_CONFIG in identify state %d\n", reply);
      if (reply == 0x01)
            *cold = 1;
      else if (reply == 0x02)
            *cold = 0;
      else
            return -EIO;
      deb_info("Identify state cold = %d\n", *cold);
      return 0;
}

static struct dvb_usb_device_properties af9005_properties;

static int af9005_usb_probe(struct usb_interface *intf,
                      const struct usb_device_id *id)
{
      return dvb_usb_device_init(intf, &af9005_properties, THIS_MODULE, NULL);
}

static struct usb_device_id af9005_usb_table[] = {
      {USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9005)},
      {USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_USB_XE)},
      {0},
};

MODULE_DEVICE_TABLE(usb, af9005_usb_table);

static struct dvb_usb_device_properties af9005_properties = {
      .caps = DVB_USB_IS_AN_I2C_ADAPTER,

      .usb_ctrl = DEVICE_SPECIFIC,
      .firmware = "af9005.fw",
      .download_firmware = af9005_download_firmware,
      .no_reconnect = 1,

      .size_of_priv = sizeof(struct af9005_device_state),

      .num_adapters = 1,
      .adapter = {
                {
                 .caps =
                 DVB_USB_ADAP_HAS_PID_FILTER |
                 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
                 .pid_filter_count = 32,
                 .pid_filter = af9005_pid_filter,
                 /* .pid_filter_ctrl = af9005_pid_filter_control, */
                 .frontend_attach = af9005_frontend_attach,
                 /* .tuner_attach     = af9005_tuner_attach, */
                 /* parameter for the MPEG2-data transfer */
                 .stream = {
                        .type = USB_BULK,
                        .count = 10,
                        .endpoint = 0x04,
                        .u = {
                              .bulk = {
                                     .buffersize = 4096,    /* actual size seen is 3948 */
                                     }
                              }
                        },
                 }
                },
      .power_ctrl = af9005_power_ctrl,
      .identify_state = af9005_identify_state,

      .i2c_algo = &af9005_i2c_algo,

      .rc_interval = 200,
      .rc_key_map = NULL,
      .rc_key_map_size = 0,
      .rc_query = af9005_rc_query,

      .num_device_descs = 2,
      .devices = {
                {.name = "Afatech DVB-T USB1.1 stick",
                 .cold_ids = {&af9005_usb_table[0], NULL},
                 .warm_ids = {NULL},
                 },
                {.name = "TerraTec Cinergy T USB XE",
                 .cold_ids = {&af9005_usb_table[1], NULL},
                 .warm_ids = {NULL},
                 },
                {NULL},
                }
};

/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver af9005_usb_driver = {
      .name = "dvb_usb_af9005",
      .probe = af9005_usb_probe,
      .disconnect = dvb_usb_device_exit,
      .id_table = af9005_usb_table,
};

/* module stuff */
static int __init af9005_usb_module_init(void)
{
      int result;
      if ((result = usb_register(&af9005_usb_driver))) {
            err("usb_register failed. (%d)", result);
            return result;
      }
      rc_decode = symbol_request(af9005_rc_decode);
      rc_keys = symbol_request(af9005_rc_keys);
      rc_keys_size = symbol_request(af9005_rc_keys_size);
      if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) {
            err("af9005_rc_decode function not found, disabling remote");
            af9005_properties.rc_query = NULL;
      } else {
            af9005_properties.rc_key_map = rc_keys;
            af9005_properties.rc_key_map_size = *rc_keys_size;
      }

      return 0;
}

static void __exit af9005_usb_module_exit(void)
{
      /* release rc decode symbols */
      if (rc_decode != NULL)
            symbol_put(af9005_rc_decode);
      if (rc_keys != NULL)
            symbol_put(af9005_rc_keys);
      if (rc_keys_size != NULL)
            symbol_put(af9005_rc_keys_size);
      /* deregister this driver from the USB subsystem */
      usb_deregister(&af9005_usb_driver);
}

module_init(af9005_usb_module_init);
module_exit(af9005_usb_module_exit);

MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");

Generated by  Doxygen 1.6.0   Back to index