[linux-dvb] ves1820 FEC off? have problems with cable provider, fec register adress and values pls,somebody?

thomas schorpp t.schorpp at gmx.de
Sun Jul 24 02:33:29 CEST 2005


hi,

get frequently big bursts here activating the poweramps protection circuit.

why this:

static int ves1820_get_frontend(struct dvb_frontend* fe, struct
dvb_frontend_parameters *p)
{
	struct ves1820_state* state = fe->demodulator_priv;
	int sync;
	s8 afc = 0;

...
	p->u.qam.fec_inner = FEC_NONE;

and this: for userspace apps?

static struct dvb_frontend_ops ves1820_ops = {
...
	.info = {...
	.caps = ...	FE_CAN_FEC_AUTO ???

its turn off, isnt it? and no functions for setting it, but theres some
correction:

schorpp at tom1:~$ femon
using '/dev/dvb/adapter0/frontend0'
FE: VLSI VES1820 DVB-C (CABLE)
status 1f | signal ffff | snr e1e1 | ber 000317cc | unc ffffffff |
FE_HAS_LOCK
status 1f | signal ffff | snr e1e1 | ber 000317cc | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr e1e1 | ber 000315d8 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr e1e1 | ber 000315d8 | unc 00000000 |
FE_HAS_LOCK

so its on? or is this a pre-stage error correction.

vlsi is philips now, so if none has a register datasheet, so pls someone
say register address and FEC values possible... to check it out.

static u8 ves1820_inittab[] = {
	0x69, 0x6A, 0x93, 0x12, 0x12, 0x46, 0x26, 0x1A,
	0x43, 0x6A, 0xAA, 0xAA, 0x1E, 0x85, 0x43, 0x20,
	0xE0, 0x00, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
	0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x40
};

which one?

y
tom







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