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media: vidtv: increment byte and block counters

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Add support for incrementing DVBv5 stats for block counters
and post/pre BER byte counts.

For now, the errors won't be incremented yet.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-09-14 08:34:26 +02:00
parent f58cac01ab
commit 9cf8572d6b
4 changed files with 24 additions and 3 deletions
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2
drivers/media/test-drivers/vidtv/vidtv_bridge.c
View File

@ -172,7 +172,7 @@ static int vidtv_start_streaming(struct vidtv_dvb *dvb)
mux_args.priv = dvb;
dvb->streaming = true;
dvb->mux = vidtv_mux_init(dev, mux_args);
dvb->mux = vidtv_mux_init(dvb->fe[0], dev, mux_args);
vidtv_mux_start_thread(dvb->mux);
dev_dbg_ratelimited(dev, "Started streaming\n");

3
drivers/media/test-drivers/vidtv/vidtv_bridge.h
View File

@ -12,6 +12,9 @@
#ifndef VIDTV_BRIDGE_H
#define VIDTV_BRIDGE_H
/*
* For now, only one frontend is supported. See vidtv_start_streaming()
*/
#define NUM_FE 1
#include <linux/i2c.h>

16
drivers/media/test-drivers/vidtv/vidtv_mux.c
View File

@ -381,6 +381,7 @@ static void vidtv_mux_tick(struct work_struct *work)
struct vidtv_mux *m = container_of(work,
struct vidtv_mux,
mpeg_thread);
struct dtv_frontend_properties *c = &m->fe->dtv_property_cache;
u32 nbytes;
u32 npkts;
@ -411,6 +412,17 @@ static void vidtv_mux_tick(struct work_struct *work)
vidtv_mux_clear(m);
/*
* Update bytes and packet counts at DVBv5 stats
*
* For now, both pre and post bit counts are identical,
* but post BER count can be lower than pre BER, if the error
* correction logic discards packages.
*/
c->pre_bit_count.stat[0].uvalue = nbytes;
c->post_bit_count.stat[0].uvalue = nbytes;
c->block_count.stat[0].uvalue += npkts;
usleep_range(VIDTV_SLEEP_USECS, VIDTV_MAX_SLEEP_USECS);
}
}
@ -435,12 +447,14 @@ void vidtv_mux_stop_thread(struct vidtv_mux *m)
}
}
struct vidtv_mux *vidtv_mux_init(struct device *dev,
struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe,
struct device *dev,
struct vidtv_mux_init_args args)
{
struct vidtv_mux *m = kzalloc(sizeof(*m), GFP_KERNEL);
m->dev = dev;
m->fe = fe;
m->timing.pcr_period_usecs = args.pcr_period_usecs;
m->timing.si_period_usecs = args.si_period_usecs;

6
drivers/media/test-drivers/vidtv/vidtv_mux.h
View File

@ -18,6 +18,8 @@
#include <linux/types.h>
#include <linux/hashtable.h>
#include <linux/workqueue.h>
#include <media/dvb_frontend.h>
#include "vidtv_psi.h"
/**
@ -100,6 +102,7 @@ struct vidtv_mux_pid_ctx {
* @priv: Private data.
*/
struct vidtv_mux {
struct dvb_frontend *fe;
struct device *dev;
struct vidtv_mux_timing timing;
@ -153,7 +156,8 @@ struct vidtv_mux_init_args {
void *priv;
};
struct vidtv_mux *vidtv_mux_init(struct device *dev,
struct vidtv_mux *vidtv_mux_init(struct dvb_frontend *fe,
struct device *dev,
struct vidtv_mux_init_args args);
void vidtv_mux_destroy(struct vidtv_mux *m);