RE: Re-tune channels after errors - Mygica T230 DVB-T2 ยป linux-media-revert-cxusb-geniatech-t230-resync-ts-fifo-after-lock.patch
| drivers/media/usb/dvb-usb/cxusb.c | ||
|---|---|---|
| 369 | 369 |
return 0; |
| 370 | 370 |
} |
| 371 | 371 | |
| 372 |
static int cxusb_read_status(struct dvb_frontend *fe, |
|
| 373 |
enum fe_status *status) |
|
| 374 |
{
|
|
| 375 |
struct dvb_usb_adapter *adap = (struct dvb_usb_adapter *)fe->dvb->priv; |
|
| 376 |
struct cxusb_state *state = (struct cxusb_state *)adap->dev->priv; |
|
| 377 |
int ret; |
|
| 378 | ||
| 379 |
ret = state->fe_read_status(fe, status); |
|
| 380 | ||
| 381 |
/* it need resync slave fifo when signal change from unlock to lock.*/ |
|
| 382 |
if ((*status & FE_HAS_LOCK) && (!state->last_lock)) {
|
|
| 383 |
mutex_lock(&state->stream_mutex); |
|
| 384 |
cxusb_streaming_ctrl(adap, 1); |
|
| 385 |
mutex_unlock(&state->stream_mutex); |
|
| 386 |
} |
|
| 387 | ||
| 388 |
state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0; |
|
| 389 |
return ret; |
|
| 390 |
} |
|
| 391 | ||
| 392 | 372 |
static void cxusb_d680_dmb_drain_message(struct dvb_usb_device *d) |
| 393 | 373 |
{
|
| 394 | 374 |
int ep = d->props.generic_bulk_ctrl_endpoint; |
| ... | ... | |
| 1392 | 1372 | |
| 1393 | 1373 |
st->i2c_client_tuner = client_tuner; |
| 1394 | 1374 | |
| 1395 |
/* hook fe: need to resync the slave fifo when signal locks. */ |
|
| 1396 |
mutex_init(&st->stream_mutex); |
|
| 1397 |
st->last_lock = 0; |
|
| 1398 |
st->fe_read_status = adap->fe_adap[0].fe->ops.read_status; |
|
| 1399 |
adap->fe_adap[0].fe->ops.read_status = cxusb_read_status; |
|
| 1400 | ||
| 1401 | 1375 |
return 0; |
| 1402 | 1376 |
} |
| 1403 | 1377 | |
| drivers/media/usb/dvb-usb/cxusb.h | ||
|---|---|---|
| 37 | 37 |
struct i2c_client *i2c_client_tuner; |
| 38 | 38 | |
| 39 | 39 |
unsigned char data[MAX_XFER_SIZE]; |
| 40 | ||
| 41 |
struct mutex stream_mutex; |
|
| 42 |
u8 last_lock; |
|
| 43 |
int (*fe_read_status)(struct dvb_frontend *fe, |
|
| 44 |
enum fe_status *status); |
|
| 45 | 40 |
}; |
| 46 | 41 | |
| 47 | 42 |
#endif |