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[media] af9033: implement DVBv5 post-Viterbi BER

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Implement following DTV API commands:
DTV_STAT_POST_ERROR_BIT_COUNT
DTV_STAT_POST_TOTAL_BIT_COUNT

These will provide post-Viterbi bit error rate reporting.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari 2014-09-02 08:29:46 -03:00 committed by Mauro Carvalho Chehab
parent 204f431928
commit 6bb096c926
1 changed files with 15 additions and 0 deletions
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15
drivers/media/dvb-frontends/af9033.c
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@ -38,6 +38,8 @@ struct af9033_dev {
fe_status_t fe_status;
u32 ber;
u32 ucb;
u64 post_bit_error;
u64 post_bit_count;
u64 error_block_count;
u64 total_block_count;
struct delayed_work stat_work;
@ -1093,6 +1095,8 @@ static void af9033_stat_work(struct work_struct *work)
if (dev->fe_status & FE_HAS_LOCK) {
/* outer FEC, 204 byte packets */
u16 abort_packet_count, rsd_packet_count;
/* inner FEC, bits */
u32 rsd_bit_err_count;
/*
* Packet count used for measurement is 10000
@ -1104,10 +1108,13 @@ static void af9033_stat_work(struct work_struct *work)
goto err;
abort_packet_count = (buf[1] << 8) | (buf[0] << 0);
rsd_bit_err_count = (buf[4] << 16) | (buf[3] << 8) | buf[2];
rsd_packet_count = (buf[6] << 8) | (buf[5] << 0);
dev->error_block_count += abort_packet_count;
dev->total_block_count += rsd_packet_count;
dev->post_bit_error += rsd_bit_err_count;
dev->post_bit_count += rsd_packet_count * 204 * 8;
c->block_count.len = 1;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
@ -1116,6 +1123,14 @@ static void af9033_stat_work(struct work_struct *work)
c->block_error.len = 1;
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue = dev->error_block_count;
c->post_bit_count.len = 1;
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[0].uvalue = dev->post_bit_count;
c->post_bit_error.len = 1;
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
}
err_schedule_delayed_work: