On 08/06/15 21:06, Malcolm Priestley wrote:
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@xxxxxxxxx>
---
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..1717102 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 = (u16)((0xff - st->signal_sn - 0xa1) * 3) << 8;
+ break;
+ case TUNER_RS2000:
+ s_tmp = (u16)((u32)st->signal_level * 0xffff / 0xff);
+
+ c_tmp = (u16)((u32)st->signal_sn * 0xffff / 0x7f);
+ }
I have notice a couple of mistakes with variable sizes.
Will repost
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