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h5: track if peer supports data integrity check

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This commit is contained in:
Matthias Ringwald 2017-02-24 11:09:55 +01:00
parent 79b61987df
commit 7c2aa31e5c
1 changed files with 7 additions and 2 deletions
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9
src/hci_transport_h5.c
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@ -114,6 +114,7 @@ static uint8_t link_seq_nr;
static uint8_t link_ack_nr;
static uint16_t link_resend_timeout_ms;
static uint8_t link_peer_asleep;
static uint8_t link_peer_supports_data_integrity_check;
// auto sleep-mode
static btstack_timer_source_t inactivity_timer;
@ -143,6 +144,7 @@ static void hci_transport_link_timeout_handler(btstack_timer_source_t * timer);
static void hci_transport_link_run(void);
static void hci_transport_slip_init(void);
// -----------------------------
// CRC16-CCITT Calculation - compromise: use 32 byte table - 512 byte table would be faster, but that's too large
static const uint16_t crc16_ccitt_table[] ={
@ -222,7 +224,7 @@ static inline void hci_transport_slip_send_next_chunk(void){
hci_transport_slip_encode_chunk_and_send(0);
}
// format: 0xc0 HEADER PACKER 0xc0
// format: 0xc0 HEADER PACKET 0xc0
// @param uint8_t header[4]
static void hci_transport_slip_send_frame(const uint8_t * header, const uint8_t * packet, uint16_t packet_size){
@ -428,6 +430,7 @@ static void hci_transport_link_timeout_handler(btstack_timer_source_t * timer){
static void hci_transport_link_init(void){
link_state = LINK_UNINITIALIZED;
link_peer_asleep = 0;
link_peer_supports_data_integrity_check = 0;
// get started
hci_transport_link_actions |= HCI_TRANSPORT_LINK_SEND_SYNC;
@ -535,7 +538,9 @@ static void hci_transport_h5_process_frame(uint16_t frame_size){
hci_transport_link_actions |= HCI_TRANSPORT_LINK_SEND_CONFIG_RESPONSE;
}
if (memcmp(slip_payload, link_control_config_response, link_control_config_response_prefix_len) == 0){
log_info("link: received config response 0x%02x", slip_payload[2]);
uint8_t config = slip_payload[2];
link_peer_supports_data_integrity_check = (config & 0x10) != 0;
log_info("link: received config response 0x%02x, data integrity check supported %u", config, link_peer_supports_data_integrity_check);
link_state = LINK_ACTIVE;
btstack_run_loop_remove_timer(&link_timer);
log_info("link activated");