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hci: calculate sco_packet_length based on number of concurrent sco connections - fixes #129

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This commit is contained in:
Matthias Ringwald 2018-05-15 17:14:24 +02:00
parent b64a5f121f
commit cf119f3b14
1 changed files with 6 additions and 2 deletions
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8
src/hci.c
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@ -4676,8 +4676,12 @@ uint16_t hci_get_sco_voice_setting(void){
*/
int hci_get_sco_packet_length(void){
// see Core Spec for H2 USB Transfer.
if (hci_stack->sco_voice_setting & 0x0020) return 51;
return 27;
// CVSD requires twice as much bytes
int multiplier = hci_stack->sco_voice_setting & 0x0020 ? 2 : 1;
// 3 byte SCO header + 24 bytes per connection
return 3 + 24 * hci_number_sco_connections() * multiplier;
}
/**