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hci: add hci_request_cis_can_send_now_events that causes HCI_EVENT_CIS_CAN_SEND_NOW

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This commit is contained in:
Matthias Ringwald 2022-09-14 11:22:27 +02:00
parent 86d67f18a0
commit 2c07777174
2 changed files with 47 additions and 0 deletions
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36
src/hci.c
View File

@ -9414,6 +9414,15 @@ static void hci_emit_bis_can_send_now(const le_audio_big_t *big, uint8_t bis_ind
hci_emit_event(&event[0], sizeof(event), 0); // don't dump
}
static void hci_emit_cis_can_send_now(hci_con_handle_t cis_con_handle) {
uint8_t event[4];
uint16_t pos = 0;
event[pos++] = HCI_EVENT_CIS_CAN_SEND_NOW;
event[pos++] = sizeof(event) - 2;
little_endian_store_16(event, pos, cis_con_handle);
hci_emit_event(&event[0], sizeof(event), 0); // don't dump
}
static le_audio_big_t * hci_big_for_handle(uint8_t big_handle){
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &hci_stack->le_audio_bigs);
@ -9455,6 +9464,9 @@ static le_audio_cig_t * hci_cig_for_id(uint8_t cig_id){
}
static void hci_iso_notify_can_send_now(void){
// BIG
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &hci_stack->le_audio_bigs);
while (btstack_linked_list_iterator_has_next(&it)){
@ -9532,6 +9544,17 @@ static void hci_iso_notify_can_send_now(void){
}
}
}
// CIS
btstack_linked_list_iterator_init(&it, &hci_stack->iso_streams);
while (btstack_linked_list_iterator_has_next(&it)) {
hci_iso_stream_t *iso_stream = (hci_iso_stream_t *) btstack_linked_list_iterator_next(&it);
if ((iso_stream->can_send_now_requested) &&
(iso_stream->num_packets_sent < hci_stack->iso_packets_to_queue)){
iso_stream->can_send_now_requested = false;
hci_emit_cis_can_send_now(iso_stream->con_handle);
}
}
}
uint8_t gap_big_create(le_audio_big_t * storage, le_audio_big_params_t * big_params){
@ -9660,6 +9683,19 @@ uint8_t hci_request_bis_can_send_now_events(uint8_t big_handle){
return ERROR_CODE_SUCCESS;
}
uint8_t hci_request_cis_can_send_now_events(hci_con_handle_t cis_con_handle){
hci_iso_stream_t * iso_stream = hci_iso_stream_for_con_handle(cis_con_handle);
if (iso_stream == NULL){
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
}
if ((iso_stream->iso_type != HCI_ISO_TYPE_CIS) && (iso_stream->state != HCI_ISO_STREAM_STATE_ESTABLISHED)) {
return ERROR_CODE_COMMAND_DISALLOWED;
}
iso_stream->can_send_now_requested = true;
hci_iso_notify_can_send_now();
return ERROR_CODE_SUCCESS;
}
uint8_t gap_cig_create(le_audio_cig_t * storage, le_audio_cig_params_t * cig_params){
if (hci_cig_for_id(cig_params->cig_id) != NULL){
return ERROR_CODE_ACL_CONNECTION_ALREADY_EXISTS;

11
src/hci.h
View File

@ -722,6 +722,9 @@ typedef struct {
// packets to skip due to queuing them to late before
uint8_t num_packets_to_skip;
// request to send
bool can_send_now_requested;
// ready to send
bool emit_ready_to_send;
@ -1412,6 +1415,14 @@ uint8_t hci_send_sco_packet_buffer(int size);
*/
uint8_t hci_request_bis_can_send_now_events(uint8_t big_handle);
/**
* @brief Request emission of HCI_EVENT_CIS_CAN_SEND_NOW for CIS as soon as possible
* @param cis_con_handle
* @note HCI_EVENT_CIS_CAN_SEND_NOW might be emitted during call to this function
* so packet handler should be ready to handle it
*/
uint8_t hci_request_cis_can_send_now_events(hci_con_handle_t cis_con_handle);
/**
* @brief Send ISO packet prepared in HCI packet buffer
*/