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 <tvbox...@gmail.com>
---
v2 Correct variable size casts
drivers/media/usb/dvb-usb-v2/lmedm04.c | 104 ++++++++++++++++++++++++---------
1 file changed, 77 insertions(+), 27 deletions(-)
diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c
b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index f1983f2..726c59e 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -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,
fe_status_t *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;
}
--
2.1.4
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