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| author | Chris Pascoe <c.pascoe@itee.uq.edu.au> | 2007-02-10 11:17:57 -0200 |
|---|---|---|
| committer | Chris Pascoe <c.pascoe@itee.uq.edu.au> | 2007-02-10 11:17:57 -0200 |
| commit | 637cf08abf2ad06f3fde39c829238ffafe036151 (patch) | |
| tree | 0ad21077c3d333febd6090f09dd663ded7ab311b /linux/drivers | |
| parent | 7480c805d984df286df973c81048990225fbbbed (diff) | |
| download | mediapointer-dvb-s2-637cf08abf2ad06f3fde39c829238ffafe036151.tar.gz mediapointer-dvb-s2-637cf08abf2ad06f3fde39c829238ffafe036151.tar.bz2 | |
Experimental support for zl10353 signal strength/BER/uncorrectable count
From: Chris Pascoe <c.pascoe@itee.uq.edu.au>
After studying many hours worth of register dumps of MT352 and ZL10353 fed
with identically damaged RF signals I have made an educated guess at which
registers contain the AGC level, bit error rate and uncorrectable error
count values.
Implement the IOCTLs that return these values to userspace.
Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Diffstat (limited to 'linux/drivers')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/zl10353.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/linux/drivers/media/dvb/frontends/zl10353.c b/linux/drivers/media/dvb/frontends/zl10353.c index c05f2c0e1..d7e3d807f 100644 --- a/linux/drivers/media/dvb/frontends/zl10353.c +++ b/linux/drivers/media/dvb/frontends/zl10353.c @@ -217,6 +217,29 @@ static int zl10353_read_status(struct dvb_frontend *fe, fe_status_t *status) return 0; } +static int zl10353_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct zl10353_state *state = fe->demodulator_priv; + + *ber = zl10353_read_register(state, 0x11) << 16 | + zl10353_read_register(state, 0x12) << 8 | + zl10353_read_register(state, 0x13); + + return 0; +} + +static int zl10353_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct zl10353_state *state = fe->demodulator_priv; + + u16 signal = zl10353_read_register(state, 0x0a) << 10 | + zl10353_read_register(state, 0x0b) << 2 | 3; + + *strength = ~signal; + + return 0; +} + static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr) { struct zl10353_state *state = fe->demodulator_priv; @@ -233,6 +256,16 @@ static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr) return 0; } +static int zl10353_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct zl10353_state *state = fe->demodulator_priv; + + *ucblocks = zl10353_read_register(state, 0x14) << 8 | + zl10353_read_register(state, 0x15); + + return 0; +} + static int zl10353_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *fe_tune_settings) @@ -335,7 +368,10 @@ static struct dvb_frontend_ops zl10353_ops = { .get_tune_settings = zl10353_get_tune_settings, .read_status = zl10353_read_status, + .read_ber = zl10353_read_ber, + .read_signal_strength = zl10353_read_signal_strength, .read_snr = zl10353_read_snr, + .read_ucblocks = zl10353_read_ucblocks, }; #if 1 |