/* IR */
static int tt3650_rc_query(struct dvb_usb_device *d)
{
int ret;
u8 rx[9]; /* A CMD_GET_IR_CODE reply is 9 bytes long */
struct ttusb2_state *st = d->priv;
ret = ttusb2_msg(d, CMD_GET_IR_CODE, NULL, 0, rx, sizeof(rx));
if (ret != 0)
return ret;
if (rx[8] & 0x01) {
/* got a "press" event */
st->last_rc_key = (rx[3] << 8) | rx[2];
deb_info("%s: cmd=0x%02x sys=0x%02x\n", __func__, rx[2], rx[3]);
rc_keydown(d->rc_dev, st->last_rc_key, 0);
} else if (st->last_rc_key) {
rc_keyup(d->rc_dev);
st->last_rc_key = 0;
}
return 0;
}
static int ttusb2_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
static u8 obuf[60], ibuf[60];
int i,read;
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.");
for (i = 0; i < num; i++) {
read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
obuf[0] = (msg[i].addr << 1) | read;
obuf[1] = msg[i].len;
/* read request */
if (read)
obuf[2] = msg[i+1].len;
else
obuf[2] = 0;
memcpy(&obuf[3],msg[i].buf,msg[i].len);
if (ttusb2_msg(d, CMD_I2C_XFER, obuf, msg[i].len+3, ibuf, obuf[2] + 3) < 0) {
err("i2c transfer failed.");
break;
}
if (read) {
memcpy(msg[i+1].buf,&ibuf[3],msg[i+1].len);
i++;
}
}
mutex_unlock(&d->i2c_mutex);
return i;
}
static int ttusb2_power_ctrl(struct dvb_usb_device *d, int onoff)
{
u8 b = onoff;
ttusb2_msg(d, CMD_POWER, &b, 0, NULL, 0);
return ttusb2_msg(d, CMD_POWER, &b, 1, NULL, 0);
}
