Implement DVBv5 UCB. Only uncorrected blocks are currently counted.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/dvb-frontends/si2168.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/media/dvb-frontends/si2168.c
b/drivers/media/dvb-frontends/si2168.c
index 5fbb6c1..680ba06 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -178,6 +178,28 @@ static int si2168_read_status(struct dvb_frontend *fe,
enum fe_status *status)
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
+ /* UCB */
+ if (*status & FE_HAS_SYNC) {
+ memcpy(cmd.args, "\x84\x01", 2);
+ cmd.wlen = 2;
+ cmd.rlen = 3;
+ ret = si2168_cmd_execute(client, &cmd);
+ if (ret)
+ goto err;
+
+ utmp1 = cmd.args[2] << 8 | cmd.args[1] << 0;
+ dev_dbg(&client->dev, "block_error=%u\n", utmp1);
+
+ /* Sometimes firmware returns bogus value */
+ if (utmp1 == 0xffff)
+ utmp1 = 0;
+
+ c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[0].uvalue += utmp1;
+ } else {
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ }
+
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
@@ -535,6 +557,8 @@ static int si2168_init(struct dvb_frontend *fe)
c->post_bit_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->block_error.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
dev->active = true;
--
http://palosaari.fi/
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