static int m920x_rc_core_query(struct dvb_usb_device *d)
{
int ret = 0;
u8 *rc_state;
int state;
rc_state = kmalloc(2, GFP_KERNEL);
if (!rc_state)
return -ENOMEM;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, &rc_state[0], 1)) != 0)
goto out;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, &rc_state[1], 1)) != 0)
goto out;
deb("state=0x%02x keycode=0x%02x\n", rc_state[0], rc_state[1]);
m920x_parse_rc_state(d, rc_state[0], &state);
if (state == REMOTE_NO_KEY_PRESSED)
rc_keyup(d->rc_dev);
else if (state == REMOTE_KEY_REPEAT)
rc_repeat(d->rc_dev);
else
rc_keydown(d->rc_dev, RC_PROTO_UNKNOWN, rc_state[1], 0);
out:
kfree(rc_state);
return ret;
}
/* I2C */
static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int i, j;
int ret = 0;
if (!num)
return -EINVAL;
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
for (i = 0; i < num; i++) {
if (msg[i].flags & (I2C_M_NO_RD_ACK | I2C_M_IGNORE_NAK | I2C_M_TEN) || msg[i].len == 0) {
/* For a 0 byte message, I think sending the address
* to index 0x80|0x40 would be the correct thing to
* do. However, zero byte messages are only used for
* probing, and since we don't know how to get the
* slave's ack, we can't probe. */
ret = -ENOTSUPP;
goto unlock;
}
/* Send START & address/RW bit */
if (!(msg[i].flags & I2C_M_NOSTART)) {
if ((ret = m920x_write(d->udev, M9206_I2C,
(msg[i].addr << 1) |
(msg[i].flags & I2C_M_RD ? 0x01 : 0), 0x80)) != 0)
goto unlock;
/* Should check for ack here, if we knew how. */
}
if (msg[i].flags & I2C_M_RD) {
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction?
* Send STOP, otherwise send ACK. */
int stop = (i+1 == num && j+1 == msg[i].len) ? 0x40 : 0x01;
if ((ret = m920x_read(d->udev, M9206_I2C, 0x0,
0x20 | stop,
&msg[i].buf[j], 1)) != 0)
goto unlock;
}
} else {
for (j = 0; j < msg[i].len; j++) {
/* Last byte of transaction? Then send STOP. */
int stop = (i+1 == num && j+1 == msg[i].len) ? 0x40 : 0x00;
if ((ret = m920x_write(d->udev, M9206_I2C, msg[i].buf[j], stop)) != 0)
goto unlock;
/* Should check for ack here too. */
}
}
}
ret = num;
unlock:
mutex_unlock(&d->i2c_mutex);
return ret;
}
static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
int i, ret = 0;
u8 *rc_state;
rc_state = kmalloc(2, GFP_KERNEL);
if (!rc_state)
return -ENOMEM;
ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE,
rc_state, 1);
if (ret != 0)
goto out;
ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY,
rc_state + 1, 1);
if (ret != 0)
goto out;
m920x_parse_rc_state(d, rc_state[0], state);
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (rc5_data(&d->props.rc.legacy.rc_map_table[i]) == rc_state[1]) {
*event = d->props.rc.legacy.rc_map_table[i].keycode;
goto out;
}
if (rc_state[1] != 0)
deb("Unknown rc key %02x\n", rc_state[1]);
*state = REMOTE_NO_KEY_PRESSED;
out:
kfree(rc_state);
return ret;
}
static int m920x_firmware_download(struct usb_device *udev, const struct firmware *fw)
{
u16 value, index, size;
u8 *read, *buff;
int i, pass, ret = 0;
buff = kmalloc(65536, GFP_KERNEL);
if (buff == NULL)
return -ENOMEM;
read = kmalloc(4, GFP_KERNEL);
if (!read) {
kfree(buff);
return -ENOMEM;
}
if ((ret = m920x_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
goto done;
deb("%x %x %x %x\n", read[0], read[1], read[2], read[3]);
if ((ret = m920x_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
goto done;
deb("%x\n", read[0]);
for (pass = 0; pass < 2; pass++) {
for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
value = get_unaligned_le16(fw->data + i);
i += sizeof(u16);
index = get_unaligned_le16(fw->data + i);
i += sizeof(u16);
size = get_unaligned_le16(fw->data + i);
i += sizeof(u16);
if (pass == 1) {
/* Will stall if using fw->data ... */
memcpy(buff, fw->data + i, size);
ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
M9206_FW,
USB_TYPE_VENDOR | USB_DIR_OUT,
value, index, buff, size, 20);
if (ret != size) {
deb("error while uploading fw!\n");
ret = -EIO;
goto done;
}
msleep(3);
}
i += size;
}
if (i != fw->size) {
deb("bad firmware file!\n");
ret = -EINVAL;
goto done;
}
}
msleep(36);
/* m920x will disconnect itself from the bus after this. */
(void) m920x_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
deb("firmware uploaded!\n");
done:
kfree(read);
kfree(buff);
return ret;
}
static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
struct m920x_state *m = d->priv;
int i, ret = 0;
u8 *rc_state;
rc_state = kmalloc(2, GFP_KERNEL);
if (!rc_state)
return -ENOMEM;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
goto out;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
goto out;
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (rc5_data(&d->props.rc.legacy.rc_map_table[i]) == rc_state[1]) {
*event = d->props.rc.legacy.rc_map_table[i].keycode;
switch(rc_state[0]) {
case 0x80:
*state = REMOTE_NO_KEY_PRESSED;
goto out;
case 0x88: /* framing error or "invalid code" */
case 0x99:
case 0xc0:
case 0xd8:
*state = REMOTE_NO_KEY_PRESSED;
m->rep_count = 0;
goto out;
case 0x93:
case 0x92:
case 0x83: /* pinnacle PCTV310e */
case 0x82:
m->rep_count = 0;
*state = REMOTE_KEY_PRESSED;
goto out;
case 0x91:
case 0x81: /* pinnacle PCTV310e */
/* prevent immediate auto-repeat */
if (++m->rep_count > 2)
*state = REMOTE_KEY_REPEAT;
else
*state = REMOTE_NO_KEY_PRESSED;
goto out;
default:
deb("Unexpected rc state %02x\n", rc_state[0]);
*state = REMOTE_NO_KEY_PRESSED;
goto out;
}
}
if (rc_state[1] != 0)
deb("Unknown rc key %02x\n", rc_state[1]);
*state = REMOTE_NO_KEY_PRESSED;
out:
kfree(rc_state);
return ret;
}
