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rfcomm: trigger l2cap request to send on rfcomm credits when client is waiting to send

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This commit is contained in:
Matthias Ringwald 2018-09-07 15:16:31 +02:00
parent 96cb50ec30
commit e0a14df4b2
1 changed files with 9 additions and 3 deletions
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12
src/classic/rfcomm.c
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@ -1287,6 +1287,7 @@ static void rfcomm_channel_packet_handler_uih(rfcomm_multiplexer_t *multiplexer,
const uint8_t length_offset = (packet[2] & 1) ^ 1; // to be used for pos >= 3
const uint8_t credit_offset = ((packet[1] & BT_RFCOMM_UIH_PF) == BT_RFCOMM_UIH_PF) ? 1 : 0; // credits for uih_pf frames
const uint8_t payload_offset = 3 + length_offset + credit_offset;
int request_can_send_now = 0;
rfcomm_channel_t * channel = rfcomm_channel_for_multiplexer_and_dlci(multiplexer, frame_dlci);
if (!channel) return;
@ -1301,9 +1302,10 @@ static void rfcomm_channel_packet_handler_uih(rfcomm_multiplexer_t *multiplexer,
// notify channel statemachine
rfcomm_channel_event_t channel_event = { CH_EVT_RCVD_CREDITS, 0 };
log_debug("rfcomm_channel_state_machine_with_channel, waiting_for_can_send_now %u", channel->waiting_for_can_send_now);
rfcomm_channel_state_machine_with_channel(channel, &channel_event);
if (rfcomm_channel_ready_to_send(channel)){
l2cap_request_can_send_now_event(multiplexer->l2cap_cid);
if (rfcomm_channel_ready_to_send(channel) || channel->waiting_for_can_send_now){
request_can_send_now = 1;
}
}
@ -1325,8 +1327,12 @@ static void rfcomm_channel_packet_handler_uih(rfcomm_multiplexer_t *multiplexer,
// automatically provide new credits to remote device, if no incoming flow control
if (!channel->incoming_flow_control && channel->credits_incoming < 5){
channel->new_credits_incoming = RFCOMM_CREDITS;
l2cap_request_can_send_now_event(multiplexer->l2cap_cid);
request_can_send_now = 1;
}
if (request_can_send_now){
l2cap_request_can_send_now_event(multiplexer->l2cap_cid);
}
}
static void rfcomm_channel_accept_pn(rfcomm_channel_t *channel, rfcomm_channel_event_pn_t *event){