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| author |   Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-17 04:55:26 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-19 08:17:46 -0200 |
| commit | 7a9d85d5559fff9214a3c41d441c9642805ddad3 (patch) | |
| tree | 10ff7fb636931448dc8adc463fb2bb8e58a9d422 /drivers/media/dvb-frontends/dib8000.c | |
| parent | [media] dib8000: make a better estimation for dBm (diff) | |
| download | linux-dev-7a9d85d5559fff9214a3c41d441c9642805ddad3.tar.xz linux-dev-7a9d85d5559fff9214a3c41d441c9642805ddad3.zip | |
[media] dib8000: Fix UCB measure with DVBv5 stats
On dib8000, the block error count is a monotonic 32 bits register.
With DVBv5 stats, we use a 64 bits counter, that it is reset
when a new channel is tuned.
Change the UCB counting start from 0 and to be returned with
64 bits, just like the API requests.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Patrick Boettcher <pboettcher@kernellabs.com>
Diffstat (limited to 'drivers/media/dvb-frontends/dib8000.c')
| -rw-r--r-- | drivers/media/dvb-frontends/dib8000.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c index 7b10b73befbe..ef0d9ec0df23 100644 --- a/drivers/media/dvb-frontends/dib8000.c +++ b/drivers/media/dvb-frontends/dib8000.c @@ -119,6 +119,7 @@ struct dib8000_state { u8 longest_intlv_layer; u16 output_mode; + s64 init_ucb; #ifdef DIB8000_AGC_FREEZE u16 agc1_max; u16 agc1_min; @@ -986,10 +987,13 @@ static u16 dib8000_identify(struct i2c_device *client) return value; } +static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 *unc); + static void dib8000_reset_stats(struct dvb_frontend *fe) { struct dib8000_state *state = fe->demodulator_priv; struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache; + u32 ucb; memset(&c->strength, 0, sizeof(c->strength)); memset(&c->cnr, 0, sizeof(c->cnr)); @@ -1010,6 +1014,9 @@ static void dib8000_reset_stats(struct dvb_frontend *fe) c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + + dib8000_read_unc_blocks(fe, &ucb); + state->init_ucb = -ucb; } static int dib8000_reset(struct dvb_frontend *fe) @@ -3989,14 +3996,12 @@ static int dib8000_get_stats(struct dvb_frontend *fe, fe_status_t stat) c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; c->post_bit_count.stat[0].uvalue += 100000000; - /* - * FIXME: this is refreshed on every second, but a time - * drift between dib8000 and PC clock may cause troubles - */ dib8000_read_unc_blocks(fe, &val); + if (val < state->init_ucb) + state->init_ucb += 1L << 32; c->block_error.stat[0].scale = FE_SCALE_COUNTER; - c->block_error.stat[0].uvalue += val; + c->block_error.stat[0].uvalue = val + state->init_ucb; if (state->revision < 0x8002) return 0; |