static bool avrcp_get_play_status(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
uint32_t interval;
uint8_t status;
if (ctype <= AVC_CTYPE_GENERAL_INQUIRY)
return true;
if (!l2cap_frame_get_be32(frame, &interval))
return false;
print_field("%*cSongLength: 0x%08x (%u miliseconds)",
(indent - 8), ' ', interval, interval);
if (!l2cap_frame_get_be32(frame, &interval))
return false;
print_field("%*cSongPosition: 0x%08x (%u miliseconds)",
(indent - 8), ' ', interval, interval);
if (!l2cap_frame_get_u8(frame, &status))
return false;
print_field("%*cPlayStatus: 0x%02x (%s)", (indent - 8),
' ', status, playstatus2str(status));
return true;
}
static bool setup_conn_req(struct bnep_frame *bnep_frame, uint8_t indent)
{
struct l2cap_frame *frame = &bnep_frame->l2cap_frame;
uint8_t uuid_size;
uint32_t src_uuid = 0, dst_uuid = 0;
if (!l2cap_frame_get_u8(frame, &uuid_size))
return false;
print_field("%*cSize: 0x%02x ", indent, ' ', uuid_size);
switch (uuid_size) {
case 2:
if (!l2cap_frame_get_be16(frame, (uint16_t *) &dst_uuid))
return false;
if (!l2cap_frame_get_be16(frame, (uint16_t *) &src_uuid))
return false;
break;
case 4:
if (!l2cap_frame_get_be32(frame, &dst_uuid))
return false;
if (!l2cap_frame_get_be32(frame, &src_uuid))
return false;
break;
case 16:
if (!l2cap_frame_get_be32(frame, &dst_uuid))
return false;
l2cap_frame_pull(frame, frame, 12);
if (!l2cap_frame_get_be32(frame, &src_uuid))
return false;
l2cap_frame_pull(frame, frame, 12);
break;
default:
l2cap_frame_pull(frame, frame, (uuid_size * 2));
return true;
}
print_field("%*cDst: 0x%x(%s)", indent, ' ', dst_uuid,
bt_uuid32_to_str(dst_uuid));
print_field("%*cSrc: 0x%x(%s)", indent, ' ', src_uuid,
bt_uuid32_to_str(src_uuid));
return true;
}
static bool avrcp_register_notification(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
uint8_t event, status;
uint16_t uid;
uint32_t interval;
uint64_t id;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (!l2cap_frame_get_u8(frame, &event))
return false;
print_field("%*cEventID: 0x%02x (%s)", (indent - 8),
' ', event, event2str(event));
if (!l2cap_frame_get_be32(frame, &interval))
return false;
print_field("%*cInterval: 0x%08x (%u seconds)",
(indent - 8), ' ', interval, interval);
return true;
response:
if (!l2cap_frame_get_u8(frame, &event))
return false;
print_field("%*cEventID: 0x%02x (%s)", (indent - 8),
' ', event, event2str(event));
switch (event) {
case AVRCP_EVENT_PLAYBACK_STATUS_CHANGED:
if (!l2cap_frame_get_u8(frame, &status))
return false;
print_field("%*cPlayStatus: 0x%02x (%s)", (indent - 8),
' ', status, playstatus2str(status));
break;
case AVRCP_EVENT_TRACK_CHANGED:
if (!l2cap_frame_get_be64(frame, &id))
return false;
print_field("%*cIdentifier: 0x%16" PRIx64 " (%" PRIu64 ")",
(indent - 8), ' ', id, id);
break;
case AVRCP_EVENT_PLAYBACK_POS_CHANGED:
if (!l2cap_frame_get_be32(frame, &interval))
return false;
print_field("%*cPosition: 0x%08x (%u miliseconds)",
(indent - 8), ' ', interval, interval);
break;
case AVRCP_EVENT_BATT_STATUS_CHANGED:
if (!l2cap_frame_get_u8(frame, &status))
return false;
print_field("%*cBatteryStatus: 0x%02x (%s)", (indent - 8),
' ', status, status2str(status));
break;
case AVRCP_EVENT_SYSTEM_STATUS_CHANGED:
if (!l2cap_frame_get_u8(frame, &status))
return false;
print_field("%*cSystemStatus: 0x%02x ", (indent - 8),
' ', status);
switch (status) {
case 0x00:
printf("(POWER_ON)\n");
break;
case 0x01:
printf("(POWER_OFF)\n");
break;
case 0x02:
printf("(UNPLUGGED)\n");
break;
default:
printf("(UNKOWN)\n");
break;
}
break;
case AVRCP_EVENT_PLAYER_APPLICATION_SETTING_CHANGED:
if (!l2cap_frame_get_u8(frame, &status))
return false;
print_field("%*cAttributeCount: 0x%02x", (indent - 8),
' ', status);
for (; status > 0; status--) {
uint8_t attr, value;
if (!l2cap_frame_get_u8(frame, &attr))
return false;
print_field("%*cAttributeID: 0x%02x (%s)",
(indent - 8), ' ', attr, attr2str(attr));
if (!l2cap_frame_get_u8(frame, &value))
return false;
print_field("%*cValueID: 0x%02x (%s)", (indent - 8),
' ', value, value2str(attr, value));
}
break;
case AVRCP_EVENT_VOLUME_CHANGED:
if (!l2cap_frame_get_u8(frame, &status))
return false;
status &= 0x7F;
print_field("%*cVolume: %.2f%% (%d/127)", (indent - 8),
' ', status/1.27, status);
break;
case AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED:
if (!l2cap_frame_get_be16(frame, &uid))
return false;
print_field("%*cPlayerID: 0x%04x (%u)", (indent - 8),
' ', uid, uid);
if (!l2cap_frame_get_be16(frame, &uid))
return false;
print_field("%*cUIDCounter: 0x%04x (%u)", (indent - 8),
' ', uid, uid);
break;
case AVRCP_EVENT_UIDS_CHANGED:
if (!l2cap_frame_get_be16(frame, &uid))
return false;
print_field("%*cUIDCounter: 0x%04x (%u)", (indent - 8),
' ', uid, uid);
break;
}
return true;
}
static bool avrcp_get_element_attributes(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
uint64_t id;
uint8_t num;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (!l2cap_frame_get_be64(frame, &id))
return false;
print_field("%*cIdentifier: 0x%jx (%s)", (indent - 8), ' ',
id, id ? "Reserved" : "PLAYING");
if (!l2cap_frame_get_u8(frame, &num))
return false;
print_field("%*cAttributeCount: 0x%02x", (indent - 8), ' ', num);
for (; num > 0; num--) {
uint32_t attr;
if (!l2cap_frame_get_be32(frame, &attr))
return false;
print_field("%*cAttribute: 0x%08x (%s)", (indent - 8),
' ', attr, mediattr2str(attr));
}
return true;
response:
switch (avctp_frame->pt) {
case AVRCP_PACKET_TYPE_SINGLE:
case AVRCP_PACKET_TYPE_START:
if (!l2cap_frame_get_u8(frame, &num))
return false;
avrcp_continuing.num = num;
print_field("%*cAttributeCount: 0x%02x", (indent - 8),
' ', num);
len--;
break;
case AVRCP_PACKET_TYPE_CONTINUING:
case AVRCP_PACKET_TYPE_END:
num = avrcp_continuing.num;
if (avrcp_continuing.size > 0) {
uint16_t size;
if (avrcp_continuing.size > len) {
size = len;
avrcp_continuing.size -= len;
} else {
size = avrcp_continuing.size;
avrcp_continuing.size = 0;
}
printf("ContinuingAttributeValue: ");
for (; size > 0; size--) {
uint8_t c;
if (!l2cap_frame_get_u8(frame, &c))
goto failed;
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
len -= size;
}
break;
default:
goto failed;
}
while (num > 0 && len > 0) {
uint32_t attr;
uint16_t charset, attrlen;
if (!l2cap_frame_get_be32(frame, &attr))
goto failed;
print_field("%*cAttribute: 0x%08x (%s)", (indent - 8),
' ', attr, mediattr2str(attr));
if (!l2cap_frame_get_be16(frame, &charset))
goto failed;
print_field("%*cCharsetID: 0x%04x (%s)", (indent - 8),
' ', charset, charset2str(charset));
if (!l2cap_frame_get_be16(frame, &attrlen))
goto failed;
print_field("%*cAttributeValueLength: 0x%04x",
(indent - 8), ' ', attrlen);
len -= sizeof(attr) + sizeof(charset) + sizeof(attrlen);
num--;
print_field("%*cAttributeValue: ", (indent - 8), ' ');
for (; attrlen > 0 && len > 0; attrlen--, len--) {
uint8_t c;
if (!l2cap_frame_get_u8(frame, &c))
goto failed;
printf("%1c", isprint(c) ? c : '.');
}
if (attrlen > 0)
avrcp_continuing.size = attrlen;
}
avrcp_continuing.num = num;
return true;
failed:
avrcp_continuing.num = 0;
avrcp_continuing.size = 0;
return false;
}