Return-Path: From: Bharat Panda To: linux-bluetooth@vger.kernel.org Cc: cpgs@samsung.com, Bharat Panda Subject: [PATCH 1/3] monitor: Add Support for AVRCP GetItemAttributes Date: Tue, 21 Apr 2015 17:35:45 +0530 Message-id: <1429617947-5784-2-git-send-email-bharat.panda@samsung.com> In-reply-to: <1429617947-5784-1-git-send-email-bharat.panda@samsung.com> References: <1429617947-5784-1-git-send-email-bharat.panda@samsung.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Support for decoding AVRCP GetItemAttributes added to btmon. Channel: 65 len 26 ctrl 0x0102 [PSM 27 mode 3] {chan 1} I-frame: Unsegmented TxSeq 1 ReqSeq 1 AVCTP Browsing: Command: type 0x00 label 0 PID 0x110e AVRCP: GetItemAttributes: len 0x0010 Scope: 0x01 (Media Player Virtual Filesystem) UID: 0x0000000000000001 (1) UIDCounter: 0x0000 (0) AttributeCount: 0x01 (1) AttributeID: 0x00000001 (Title) --- monitor/avctp.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/monitor/avctp.c b/monitor/avctp.c index f4f3250..95475a0 100644 --- a/monitor/avctp.c +++ b/monitor/avctp.c @@ -1954,6 +1954,80 @@ static bool avrcp_media_element_item(struct avctp_frame *avctp_frame, return true; } +static bool avrcp_get_item_attributes(struct avctp_frame *avctp_frame) +{ + struct l2cap_frame *frame = &avctp_frame->l2cap_frame; + uint64_t uid; + uint16_t uidcounter; + uint8_t scope, count, status, indent = 2; + + if (avctp_frame->hdr & 0x02) + goto response; + + if (frame->size < 12) { + print_field("%*cPDU Malformed", indent, ' '); + packet_hexdump(frame->data, frame->size); + return false; + } + + if (!l2cap_frame_get_u8(frame, &scope)) + return false; + + print_field("%*cScope: 0x%02x (%s)", indent, ' ', + scope, scope2str(scope)); + + if (!l2cap_frame_get_be64(frame, &uid)) + return false; + + print_field("%*cUID: 0x%016" PRIx64 " (%" PRIu64 ")", indent, + ' ', uid, uid); + + if (!l2cap_frame_get_be16(frame, &uidcounter)) + return false; + + print_field("%*cUIDCounter: 0x%04x (%u)", indent, ' ', + uidcounter, uidcounter); + + if (!l2cap_frame_get_u8(frame, &count)) + return false; + + print_field("%*cAttributeCount: 0x%02x (%u)", indent, ' ', + count, count); + + for (; count > 0; count--) { + uint32_t attr; + + if (!l2cap_frame_get_be32(frame, &attr)) + return false; + + print_field("%*cAttributeID: 0x%08x (%s)", indent, ' ', + attr, mediattr2str(attr)); + } + + return true; + +response: + if (!l2cap_frame_get_u8(frame, &status)) + return false; + + print_field("%*cStatus: 0x%02x (%s)", indent, ' ', + status, error2str(status)); + + if (frame->size == 1) + return false; + + if (!l2cap_frame_get_u8(frame, &count)) + return false; + + print_field("%*cAttributeCount: 0x%02x (%u)", indent, ' ', + count, count); + + if (!avrcp_attribute_entry_list(avctp_frame, indent, count)) + return false; + + return true; +} + static bool avrcp_get_folder_items(struct avctp_frame *avctp_frame) { struct l2cap_frame *frame = &avctp_frame->l2cap_frame; @@ -2136,6 +2210,9 @@ static bool avrcp_browsing_packet(struct avctp_frame *avctp_frame) case AVRCP_GET_FOLDER_ITEMS: avrcp_get_folder_items(avctp_frame); break; + case AVRCP_GET_ITEM_ATTRIBUTES: + avrcp_get_item_attributes(avctp_frame); + break; default: packet_hexdump(frame->data, frame->size); } -- 1.9.1