Example of response obtained with PTS test TC_TG_PAS_BV_06_C:
> ACL data: handle 11 flags 0x02 dlen 17
L2CAP(d): cid 0x0043 len 13 [psm 23]
AVCTP: Command : pt 0x00 transaction 2 pid 0x110e
AV/C: Status: address 0x48 opcode 0x00
Subunit: Panel
Opcode: Vendor Dependent
Company ID: 0x001958
AVRCP: ListPlayerApplicationSettingAttributes: pt 0x00 len 0x0000
< ACL data: handle 11 flags 0x02 dlen 20
L2CAP(d): cid 0x0043 len 16 [psm 23]
AVCTP: Response : pt 0x00 transaction 2 pid 0x110e
AV/C: Stable: address 0x48 opcode 0x00
Subunit: Panel
Opcode: Vendor Dependent
Company ID: 0x001958
AVRCP: ListPlayerApplicationSettingAttributes: pt 0x00 len 0x0003
AttributeCount: 0x02
AttributeID: 0x01 (Equalizer ON/OFF Status)
AttributeID: 0x04 (Scan ON/OFF Status)
---
audio/control.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 53 insertions(+), 0 deletions(-)
diff --git a/audio/control.c b/audio/control.c
index 51c2aca..45a669e 100644
--- a/audio/control.c
+++ b/audio/control.c
@@ -113,6 +113,7 @@
/* PDU types for metadata transfer */
#define AVRCP_GET_CAPABILITIES 0x10
+#define AVRCP_LIST_PLAYER_ATTRIBUTES 0X11
/* Capabilities for AVRCP_GET_CAPABILITIES pdu */
#define CAP_COMPANY_ID 0x02
@@ -608,6 +609,13 @@ static void mp_set_attribute(struct media_player *mp,
mp->settings[attr] = val;
}
+static int mp_get_attribute(struct media_player *mp, uint8_t attr)
+{
+ DBG("Get attribute: %u", attr);
+
+ return mp->settings[attr];
+}
+
static void mp_set_media_attributes(struct control *control,
struct media_info *mi)
{
@@ -673,6 +681,38 @@ err:
return -EINVAL;
}
+static int avrcp_handle_list_player_attributes(struct control *control,
+ struct avrcp_spec_avc_pdu *pdu)
+{
+ uint16_t len = ntohs(pdu->params_len);
+ struct media_player *mp = control->mp;
+ unsigned int i;
+
+ if (len != 0) {
+ pdu->params[0] = E_INVALID_PARAM;
+ return -EINVAL;
+ }
+
+ if (!mp)
+ goto done;
+
+ for (i = 1; i <= PLAYER_SETTING_SCAN; i++) {
+ if (!mp_get_attribute(mp, i)) {
+ DBG("Ignoring setting %u: not supported by player", i);
+ continue;
+ }
+
+ len++;
+ pdu->params[len] = i;
+ }
+
+done:
+ pdu->params[0] = len;
+ pdu->params_len = htons(len + 1);
+
+ return len + 1;
+}
+
/* handle vendordep pdu inside an avctp packet */
static int handle_vendordep_pdu(struct control *control,
struct avrcp_header *avrcp,
@@ -712,6 +752,19 @@ static int handle_vendordep_pdu(struct control *control,
avrcp->code = CTYPE_STABLE;
break;
+ case AVRCP_LIST_PLAYER_ATTRIBUTES:
+ if (avrcp->code != CTYPE_STATUS) {
+ pdu->params[0] = E_INVALID_COMMAND;
+ goto err_metadata;
+ }
+
+ len = avrcp_handle_list_player_attributes(control, pdu);
+ if (len < 0)
+ goto err_metadata;
+
+ avrcp->code = CTYPE_STABLE;
+
+ break;
default:
/* Invalid pdu_id */
pdu->params[0] = E_INVALID_COMMAND;
--
1.7.6
--
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