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android/avrcp-lib: Add support for parsing GetElementAttributes PDU

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This commit is contained in:
Luiz Augusto von Dentz 2014-03-14 15:23:52 +02:00
parent 9080d086f2
commit f504d0787f
2 changed files with 54 additions and 0 deletions
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39
android/avrcp-lib.c
View File

@ -474,6 +474,42 @@ static ssize_t get_play_status(struct avrcp *session, uint8_t transaction,
player->user_data);
}
static ssize_t get_element_attributes(struct avrcp *session,
uint8_t transaction,
uint16_t params_len,
uint8_t *params,
void *user_data)
{
struct avrcp_player *player = user_data;
uint64_t uid;
uint8_t number;
uint32_t attrs[AVRCP_MEDIA_ATTRIBUTE_LAST];
int i;
DBG("");
if (!params || params_len != 9 + params[8] * 4)
return -EINVAL;
uid = bt_get_be64(params);
number = params[8];
for (i = 0; i < number; i++) {
attrs[i] = bt_get_be32(&params[9 + i * 4]);
if (attrs[i] == AVRCP_MEDIA_ATTRIBUTE_ILLEGAL ||
attrs[i] > AVRCP_MEDIA_ATTRIBUTE_LAST)
return -EINVAL;
}
if (!player->ind || !player->ind->get_element_attributes)
return -ENOSYS;
return player->ind->get_element_attributes(session, transaction, uid,
number, attrs,
player->user_data);
}
static const struct avrcp_control_handler player_handlers[] = {
{ AVRCP_GET_CAPABILITIES,
AVC_CTYPE_STATUS, AVC_CTYPE_STABLE,
@ -499,6 +535,9 @@ static const struct avrcp_control_handler player_handlers[] = {
{ AVRCP_GET_PLAY_STATUS,
AVC_CTYPE_STATUS, AVC_CTYPE_STABLE,
get_play_status },
{ AVRCP_GET_ELEMENT_ATTRIBUTES,
AVC_CTYPE_STATUS, AVC_CTYPE_STABLE,
get_element_attributes },
{ },
};

15
android/avrcp-lib.h
View File

@ -104,6 +104,17 @@
#define AVRCP_SCAN_ALL 0x02
#define AVRCP_SCAN_GROUP 0x03
/* media attributes */
#define AVRCP_MEDIA_ATTRIBUTE_ILLEGAL 0x00
#define AVRCP_MEDIA_ATTRIBUTE_TITLE 0x01
#define AVRCP_MEDIA_ATTRIBUTE_ARTIST 0x02
#define AVRCP_MEDIA_ATTRIBUTE_ALBUM 0x03
#define AVRCP_MEDIA_ATTRIBUTE_TRACK 0x04
#define AVRCP_MEDIA_ATTRIBUTE_N_TRACKS 0x05
#define AVRCP_MEDIA_ATTRIBUTE_GENRE 0x06
#define AVRCP_MEDIA_ATTRIBUTE_DURATION 0x07
#define AVRCP_MEDIA_ATTRIBUTE_LAST AVRCP_MEDIA_ATTRIBUTE_DURATION
/* Company IDs for vendor dependent commands */
#define IEEEID_BTSIG 0x001958
@ -141,6 +152,10 @@ struct avrcp_control_ind {
void *user_data);
int (*get_play_status) (struct avrcp *session, uint8_t transaction,
void *user_data);
int (*get_element_attributes) (struct avrcp *session,
uint8_t transaction, uint64_t uid,
uint8_t number, uint32_t *attrs,
void *user_data);
};
struct avrcp_control_cfm {