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[media] lmedm04: implement dvb v5 statistics

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Indroduce function lme2510_update_stats to update
statistics directly from usb interrupt.

Provide signal and snr wrap rounds for dvb v3 functions.

Block and post bit are not available.

When i2c_talk_onoff is on no statistics are available,
with possible future hand over to the relevant frontend/tuner.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Malcolm Priestley 2015-06-08 19:05:20 -03:00 committed by Mauro Carvalho Chehab
parent baa1fb504c
commit 48c91aadc5
1 changed files with 77 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

104
drivers/media/usb/dvb-usb-v2/lmedm04.c
View file

@ -257,6 +257,65 @@ static int lme2510_enable_pid(struct dvb_usb_device *d, u8 index, u16 pid_out)
return ret;
}
static void lme2510_update_stats(struct dvb_usb_adapter *adap)
{
struct lme2510_state *st = adap_to_priv(adap);
struct dvb_frontend *fe = adap->fe[0];
struct dtv_frontend_properties *c;
u64 s_tmp = 0, c_tmp = 0;
if (!fe)
return;
c = &fe->dtv_property_cache;
c->block_count.len = 1;
c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.len = 1;
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.len = 1;
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.len = 1;
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
if (st->i2c_talk_onoff) {
c->strength.len = 1;
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
return;
}
switch (st->tuner_config) {
case TUNER_LG:
s_tmp = 0xff - st->signal_level;
s_tmp |= s_tmp << 8;
c_tmp = 0xff - st->signal_sn;
c_tmp |= c_tmp << 8;
break;
/* fall through */
case TUNER_S7395:
case TUNER_S0194:
s_tmp = 0xffff - (((st->signal_level * 2) << 8) * 5 / 4);
c_tmp = ((0xff - st->signal_sn - 0xa1) * 3) << 8;
break;
case TUNER_RS2000:
s_tmp = st->signal_level * 0xffff / 0xff;
c_tmp = st->signal_sn * 0xffff / 0x7f;
}
c->strength.len = 1;
c->strength.stat[0].scale = FE_SCALE_RELATIVE;
c->strength.stat[0].uvalue = s_tmp;
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_RELATIVE;
c->cnr.stat[0].uvalue = c_tmp;
}
static void lme2510_int_response(struct urb *lme_urb)
{
struct dvb_usb_adapter *adap = lme_urb->context;
@ -337,6 +396,8 @@ static void lme2510_int_response(struct urb *lme_urb)
if (!signal_lock)
st->lock_status &= ~FE_HAS_LOCK;
lme2510_update_stats(adap);
debug_data_snipet(5, "INT Remote data snipet in", ibuf);
break;
case 0xcc:
@ -872,56 +933,45 @@ static int dm04_read_status(struct dvb_frontend *fe, enum fe_status *status)
*status = st->lock_status;
if (!(*status & FE_HAS_LOCK))
if (!(*status & FE_HAS_LOCK)) {
struct dvb_usb_adapter *adap = fe_to_adap(fe);
st->i2c_talk_onoff = 1;
lme2510_update_stats(adap);
}
return ret;
}
static int dm04_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct lme2510_state *st = fe_to_priv(fe);
if (st->fe_read_signal_strength && !st->stream_on)
return st->fe_read_signal_strength(fe, strength);
switch (st->tuner_config) {
case TUNER_LG:
*strength = 0xff - st->signal_level;
*strength |= *strength << 8;
break;
/* fall through */
case TUNER_S7395:
case TUNER_S0194:
*strength = 0xffff - (((st->signal_level * 2) << 8) * 5 / 4);
break;
case TUNER_RS2000:
*strength = (u16)((u32)st->signal_level * 0xffff / 0xff);
}
if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
*strength = (u16)c->strength.stat[0].uvalue;
else
*strength = 0;
return 0;
}
static int dm04_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct lme2510_state *st = fe_to_priv(fe);
if (st->fe_read_snr && !st->stream_on)
return st->fe_read_snr(fe, snr);
switch (st->tuner_config) {
case TUNER_LG:
*snr = 0xff - st->signal_sn;
*snr |= *snr << 8;
break;
/* fall through */
case TUNER_S7395:
case TUNER_S0194:
*snr = (u16)((0xff - st->signal_sn - 0xa1) * 3) << 8;
break;
case TUNER_RS2000:
*snr = (u16)((u32)st->signal_sn * 0xffff / 0x7f);
}
if (c->cnr.stat[0].scale == FE_SCALE_RELATIVE)
*snr = (u16)c->cnr.stat[0].uvalue;
else
*snr = 0;
return 0;
}