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Bluetooth: Audio: Shell: Fix issue with restarting start_sine

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The lc3_start_time and lc3_sdu_cnt were not reset properly,
causing it to fail when trying to do start_sine after calling
stop_sine.

This commit also ensures that the sending of the sine wave is
stopped once the stream is either released or stopped.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2022-12-14 22:53:47 +01:00 • committed by Carles Cufí
commit b2a8fa1392
1 changed files with 27 additions and 11 deletions
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38
subsys/bluetooth/shell/audio.c
View file

@ -186,6 +186,8 @@ static int frame_duration_us;
static int frame_duration_100us;
static int frames_per_sdu;
static int octets_per_frame;
static int64_t lc3_start_time;
static int32_t lc3_sdu_cnt;
/**
* Use the math lib to generate a sine-wave using 16 bit samples into a buffer.
@ -260,8 +262,6 @@ static void lc3_audio_timer_timeout(struct k_work *work)
*/
const uint8_t prime_count = 2;
static bool lc3_initialized;
static int64_t start_time;
static int32_t sdu_cnt;
int64_t run_time_100us;
int32_t sdu_goal_cnt;
int64_t run_time_ms;
@ -280,16 +280,16 @@ static void lc3_audio_timer_timeout(struct k_work *work)
k_work_schedule(k_work_delayable_from_work(work),
K_USEC(default_preset->preset.qos.interval));
if (start_time == 0) {
if (lc3_start_time == 0) {
/* Read start time and produce the number of frames needed to catch up with any
* inaccuracies in the timer. by calculating the number of frames we should
* have sent and compare to how many were actually sent.
*/
start_time = k_uptime_get();
lc3_start_time = k_uptime_get();
}
uptime = k_uptime_get();
run_time_ms = uptime - start_time;
run_time_ms = uptime - lc3_start_time;
/* PDU count calculations done in 100us units to allow 7.5ms framelength in fixed-point */
run_time_100us = run_time_ms * 10;
@ -298,15 +298,15 @@ static void lc3_audio_timer_timeout(struct k_work *work)
/* Add primer value to ensure the controller do not run low on data due to jitter */
sdu_goal_cnt += prime_count;
if ((sdu_cnt % 100) == 0) {
if ((lc3_sdu_cnt % 100) == 0) {
printk("LC3 encode %d frames in %d SDUs\n",
(sdu_goal_cnt - sdu_cnt) * frames_per_sdu,
(sdu_goal_cnt - sdu_cnt));
(sdu_goal_cnt - lc3_sdu_cnt) * frames_per_sdu,
(sdu_goal_cnt - lc3_sdu_cnt));
}
seq_num = get_next_seq_num(default_preset->preset.qos.interval);
while (sdu_cnt < sdu_goal_cnt) {
while (lc3_sdu_cnt < sdu_goal_cnt) {
const uint16_t tx_sdu_len = frames_per_sdu * octets_per_frame;
struct net_buf *buf;
uint8_t *net_buffer;
@ -344,10 +344,10 @@ static void lc3_audio_timer_timeout(struct k_work *work)
return;
}
if ((sdu_cnt % 100) == 0) {
if ((lc3_sdu_cnt % 100) == 0) {
printk("TX LC3: %zu\n", tx_sdu_len);
}
sdu_cnt++;
lc3_sdu_cnt++;
seq_num++;
}
}
@ -1426,6 +1426,9 @@ static void stream_stopped_cb(struct bt_audio_stream *stream)
#if defined(CONFIG_LIBLC3)
if (stream == default_stream) {
lc3_start_time = 0;
lc3_sdu_cnt = 0;
k_work_cancel_delayable(&audio_send_work);
}
#endif /* CONFIG_LIBLC3 */
@ -1453,6 +1456,16 @@ static void stream_released_cb(struct bt_audio_stream *stream)
}
}
#endif /* CONFIG_BT_AUDIO_UNICAST_CLIENT */
#if defined(CONFIG_LIBLC3)
/* stop sending */
if (stream == default_stream) {
lc3_start_time = 0;
lc3_sdu_cnt = 0;
k_work_cancel_delayable(&audio_send_work);
}
#endif /* CONFIG_LIBLC3 */
}
#endif /* CONFIG_BT_AUDIO_UNICAST */
@ -1900,6 +1913,9 @@ static int cmd_start_sine(const struct shell *sh, size_t argc, char *argv[])
static int cmd_stop_sine(const struct shell *sh, size_t argc, char *argv[])
{
lc3_start_time = 0;
lc3_sdu_cnt = 0;
k_work_cancel_delayable(&audio_send_work);
return 0;