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authorAntti Palosaari <crope@iki.fi>2014-09-02 15:01:10 +0400
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-09-22 02:46:01 +0400
commit204f4319289fcd45ae2d059a4cfc200c7754b050 (patch)
treef9d24e31d02c6d97ce0e07529e7eb5dcfb0bb6a6 /drivers/media/dvb-frontends
parent6b45778609dbe4e7d03abe9482a1a5621e2a3e64 (diff)
downloadlinux-204f4319289fcd45ae2d059a4cfc200c7754b050.tar.xz
[media] af9033: implement DVBv5 stat block counters
Implement following API commands: DTV_STAT_ERROR_BLOCK_COUNT DTV_STAT_TOTAL_BLOCK_COUNT These returns total and uncorrected error packets from outer FEC. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/af9033.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/af9033.c b/drivers/media/dvb-frontends/af9033.c
index 4c2061676bbe..7b853469bb3b 100644
--- a/drivers/media/dvb-frontends/af9033.c
+++ b/drivers/media/dvb-frontends/af9033.c
@@ -38,6 +38,8 @@ struct af9033_dev {
fe_status_t fe_status;
u32 ber;
u32 ucb;
+ u64 error_block_count;
+ u64 total_block_count;
struct delayed_work stat_work;
unsigned long last_stat_check;
};
@@ -1015,7 +1017,7 @@ static void af9033_stat_work(struct work_struct *work)
struct af9033_dev *dev = container_of(work, struct af9033_dev, stat_work.work);
struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache;
int ret, tmp, i, len;
- u8 u8tmp, buf[3];
+ u8 u8tmp, buf[7];
dev_dbg(&dev->client->dev, "\n");
@@ -1087,6 +1089,35 @@ static void af9033_stat_work(struct work_struct *work)
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
+ /* UCB/PER/BER */
+ if (dev->fe_status & FE_HAS_LOCK) {
+ /* outer FEC, 204 byte packets */
+ u16 abort_packet_count, rsd_packet_count;
+
+ /*
+ * Packet count used for measurement is 10000
+ * (rsd_packet_count). Maybe it should be increased?
+ */
+
+ ret = af9033_rd_regs(dev, 0x800032, buf, 7);
+ if (ret)
+ goto err;
+
+ abort_packet_count = (buf[1] << 8) | (buf[0] << 0);
+ rsd_packet_count = (buf[6] << 8) | (buf[5] << 0);
+
+ dev->error_block_count += abort_packet_count;
+ dev->total_block_count += rsd_packet_count;
+
+ c->block_count.len = 1;
+ c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_count.stat[0].uvalue = dev->total_block_count;
+
+ c->block_error.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[0].uvalue = dev->error_block_count;
+ }
+
err_schedule_delayed_work:
schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
return;