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Bluetooth: BAP: Add bt_bap_stream_get_tx_sync

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Add bt_bap_stream_get_tx_sync to get the ISO tx info from a BAP
stream.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2023-07-13 15:05:00 +02:00 committed by Fabio Baltieri
parent e882847cf3
commit 8600356f98
3 changed files with 76 additions and 0 deletions
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20
include/zephyr/bluetooth/audio/bap.h
View file

@ -774,6 +774,26 @@ int bt_bap_stream_release(struct bt_bap_stream *stream);
int bt_bap_stream_send(struct bt_bap_stream *stream, struct net_buf *buf, uint16_t seq_num,
uint32_t ts);
/**
* @brief Get ISO transmission timing info for a Basic Audio Profile stream
*
* Reads timing information for transmitted ISO packet on an ISO channel.
* The HCI_LE_Read_ISO_TX_Sync HCI command is used to retrieve this information from the controller.
*
* @note An SDU must have already been successfully transmitted on the ISO channel
* for this function to return successfully.
* Support for sending must be supported, determined by @kconfig{CONFIG_BT_AUDIO_TX}.
*
* @param[in] stream Stream object.
* @param[out] info Transmit info object.
*
* @retval 0 on success
* @retval -EINVAL if the stream is invalid, if the stream is not configured for sending or if it is
* not connected with a isochronous stream
* @retval Any return value from bt_iso_chan_get_tx_sync()
*/
int bt_bap_stream_get_tx_sync(struct bt_bap_stream *stream, struct bt_iso_tx_info *info);
/**
* @defgroup bt_bap_unicast_server BAP Unicast Server APIs
* @ingroup bt_bap

54
subsys/bluetooth/audio/bap_stream.c
View file

@ -260,6 +260,23 @@ bool bt_audio_valid_codec_cfg(const struct bt_audio_codec_cfg *codec_cfg)
}
#if defined(CONFIG_BT_AUDIO_TX)
static bool bt_bap_stream_can_send(const struct bt_bap_stream *stream)
{
struct bt_bap_ep_info info;
int err;
if (stream == NULL || stream->ep == NULL) {
return false;
}
err = bt_bap_ep_get_info(stream->ep, &info);
if (err != 0) {
return false;
}
return info.can_send;
}
int bt_bap_stream_send(struct bt_bap_stream *stream, struct net_buf *buf,
uint16_t seq_num, uint32_t ts)
{
@ -269,6 +286,12 @@ int bt_bap_stream_send(struct bt_bap_stream *stream, struct net_buf *buf,
return -EINVAL;
}
if (!bt_bap_stream_can_send(stream)) {
LOG_DBG("Stream is not configured for TX");
return -EINVAL;
}
ep = stream->ep;
if (ep->status.state != BT_BAP_EP_STATE_STREAMING) {
@ -282,6 +305,37 @@ int bt_bap_stream_send(struct bt_bap_stream *stream, struct net_buf *buf,
return bt_iso_chan_send(bt_bap_stream_iso_chan_get(stream),
buf, seq_num, ts);
}
int bt_bap_stream_get_tx_sync(struct bt_bap_stream *stream, struct bt_iso_tx_info *info)
{
struct bt_iso_chan *iso_chan;
CHECKIF(stream == NULL) {
LOG_DBG("stream is null");
return -EINVAL;
}
CHECKIF(info == NULL) {
LOG_DBG("info is null");
return -EINVAL;
}
if (!bt_bap_stream_can_send(stream)) {
LOG_DBG("Stream is not configured for TX");
return -EINVAL;
}
iso_chan = bt_bap_stream_iso_chan_get(stream);
if (iso_chan == NULL) {
LOG_DBG("Could not get iso channel from stream %p", stream);
return -EINVAL;
}
return bt_iso_chan_get_tx_sync(iso_chan, info);
}
#endif /* CONFIG_BT_AUDIO_TX */
#if defined(CONFIG_BT_BAP_UNICAST)

2
tests/bluetooth/audio/mocks/include/iso.h
View file

@ -18,5 +18,7 @@ int mock_bt_iso_disconnect(struct bt_iso_chan *chan);
DECLARE_FAKE_VALUE_FUNC(int, bt_iso_chan_send, struct bt_iso_chan *, struct net_buf *, uint16_t,
uint32_t);
DECLARE_FAKE_VALUE_FUNC(int, bt_iso_chan_get_tx_sync, const struct bt_iso_chan *,
struct bt_iso_tx_info *);
#endif /* MOCKS_ISO_H_ */