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avrcp: clean disconnect, improve notification registration

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This commit is contained in:
Milanka Ringwald 2017-06-07 23:46:44 +02:00
parent b193c45e22
commit 294335f1d3
3 changed files with 18 additions and 29 deletions
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38
src/classic/avrcp.c
View File

@ -516,9 +516,6 @@ static int avrcp_register_notification(avrcp_connection_t * connection, avrcp_no
}
static void avrcp_prepare_notification(avrcp_connection_t * connection, avrcp_notification_event_id_t event_id){
if (connection->state != AVCTP_CONNECTION_OPENED) return;
connection->state = AVCTP_W2_SEND_COMMAND;
connection->transaction_label++;
connection->command_opcode = AVRCP_CMD_OPCODE_VENDOR_DEPENDENT;
connection->command_type = AVRCP_CTYPE_NOTIFY;
@ -568,9 +565,9 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
// // printf_hexdump(packet+pos, size-pos);
switch (avrcp_cmd_opcode(packet,size)){
case AVRCP_CMD_OPCODE_UNIT_INFO:{
if (connection->state == AVCTP_W2_RECEIVE_RESPONSE){
connection->state = AVCTP_CONNECTION_OPENED;
}
if (connection->state != AVCTP_W2_RECEIVE_RESPONSE) return;
connection->state = AVCTP_CONNECTION_OPENED;
// operands:
memcpy(operands, packet+pos, 5);
uint8_t unit_type = operands[1] >> 3;
@ -581,10 +578,6 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
break;
}
case AVRCP_CMD_OPCODE_VENDOR_DEPENDENT:
if (connection->state == AVCTP_W2_RECEIVE_RESPONSE){
connection->state = AVCTP_CONNECTION_OPENED;
}
if (size - pos < 7) {
log_error("avrcp: wrong packet size");
return;
@ -594,6 +587,14 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
pos += 7;
// uint32_t company_id = operands[0] << 16 | operands[1] << 8 | operands[2];
uint8_t pdu_id = operands[3];
if (connection->state != AVCTP_W2_RECEIVE_RESPONSE && pdu_id != AVRCP_PDU_ID_REGISTER_NOTIFICATION){
printf("AVRCP_CMD_OPCODE_VENDOR_DEPENDENT state %d \n", connection->state);
return;
}
connection->state = AVCTP_CONNECTION_OPENED;
// uint8_t unit_type = operands[4] >> 3;
// uint8_t unit = operands[4] & 0x07;
uint16_t param_length = big_endian_read_16(operands, 5);
@ -706,7 +707,6 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
case AVRCP_CTYPE_RESPONSE_INTERIM:
// register as enabled
connection->notifications_enabled |= event_mask;
connection->state = AVCTP_CONNECTION_OPENED;
// printf("INTERIM notifications_enabled 0x%2x, notifications_to_register 0x%2x\n", connection->notifications_enabled, connection->notifications_to_register);
break;
case AVRCP_CTYPE_RESPONSE_CHANGED_STABLE:
@ -962,6 +962,7 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
break;
default:
// check for notifications? move state transition down
printf("AVRCP_CMD_OPCODE_PASS_THROUGH state %d\n", connection->state);
break;
}
if (connection->state == AVCTP_W4_STOP){
@ -996,19 +997,13 @@ static void avrcp_handle_can_send_now(avrcp_connection_t * connection){
avrcp_send_cmd(connection->l2cap_signaling_cid, connection);
break;
case AVCTP_CONNECTION_OPENED:
if (connection->disconnect){
connection->wait_to_send = 0;
connection->disconnect = 0;
connection->state = AVCTP_CONNECTION_W4_L2CAP_DISCONNECTED;
l2cap_disconnect(connection->l2cap_signaling_cid, 0);
return;
}
if (connection->notifications_to_register != 0){
for (i = 1; i < 13; i++){
if (connection->notifications_to_register & (1<<i)){
// clear registration bit before sending command
connection->notifications_to_register &= ~ (1 <<i);
connection->notifications_to_register &= ~ (1 << i);
avrcp_prepare_notification(connection, i);
connection->state = AVCTP_W2_RECEIVE_RESPONSE;
avrcp_send_cmd(connection->l2cap_signaling_cid, connection);
return;
}
@ -1450,8 +1445,5 @@ void avrcp_disconnect(uint16_t avrcp_cid){
return;
}
if (connection->state != AVCTP_CONNECTION_OPENED) return;
if (connection->state == AVCTP_CONNECTION_W4_L2CAP_DISCONNECTED) return;
connection->disconnect = 1;
avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
l2cap_disconnect(connection->l2cap_signaling_cid, 0);
}

5
src/classic/avrcp.h
View File

@ -180,8 +180,7 @@ typedef enum {
AVCTP_W4_STOP,
AVCTP_W2_SEND_COMMAND,
AVCTP_W2_RECEIVE_PRESS_RESPONSE,
AVCTP_W2_RECEIVE_RESPONSE,
AVCTP_CONNECTION_W4_L2CAP_DISCONNECTED
AVCTP_W2_RECEIVE_RESPONSE
} avctp_connection_state_t;
typedef struct {
@ -206,8 +205,6 @@ typedef struct {
uint16_t notifications_enabled;
uint16_t notifications_to_register;
uint16_t notifications_to_deregister;
uint8_t disconnect;
} avrcp_connection_t;
typedef enum {

4
test/avrcp/avrcp_test.c
View File

@ -102,8 +102,8 @@ static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packe
avrcp_subevent_connection_established_get_bd_addr(packet, event_addr);
printf("Channel successfully opened: %s, handle 0x%02x, local cid 0x%02x\n", bd_addr_to_str(event_addr), avrcp_con_handle, local_cid);
// automatically enable notifications
avrcp_enable_notification(avrcp_con_handle, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED);
avrcp_enable_notification(avrcp_con_handle, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED);
avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED);
avrcp_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED);
return;
}
case AVRCP_SUBEVENT_CONNECTION_RELEASED: