Return-Path: From: Bharat Panda To: linux-bluetooth@vger.kernel.org Cc: cpgs@samsung.com, Bharat Panda Subject: [PATCH ] monitor: Add AVRCP ChangePath support Date: Mon, 20 Apr 2015 20:19:10 +0530 Message-id: <1429541350-30882-1-git-send-email-bharat.panda@samsung.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Add support for decoding AVRCP ChangePath in bluetooth monitor. Channel: 65 len 21 ctrl 0x0000 [PSM 27 mode 3] {chan 1} I-frame: Unsegmented TxSeq 0 ReqSeq 0 AVCTP Browsing: Command: type 0x00 label 0 PID 0x110e AVRCP: ChangePath: len 0x000b UIDCounter: 0x0000 (0) Direction: 0x01 (Folder Down) FolderUID: 0x 1 (1) --- monitor/avctp.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/monitor/avctp.c b/monitor/avctp.c index f4f3250..e071393 100644 --- a/monitor/avctp.c +++ b/monitor/avctp.c @@ -1742,6 +1742,74 @@ static bool avrcp_control_packet(struct avctp_frame *avctp_frame) } } +static const char *dir2str(uint8_t dir) +{ + switch (dir) { + case 0x00: + return "Folder Up"; + case 0x01: + return "Folder Down"; + } + + return "Reserved"; +} + +static bool avrcp_change_path(struct avctp_frame *avctp_frame) +{ + struct l2cap_frame *frame = &avctp_frame->l2cap_frame; + uint64_t uid; + uint32_t items; + uint16_t uidcounter; + uint8_t dir, status, indent = 2; + + if (avctp_frame->hdr & 0x02) + goto response; + + if (frame->size < 11) { + print_field("%*cPDU Malformed", indent, ' '); + packet_hexdump(frame->data, frame->size); + return false; + } + + if (!l2cap_frame_get_be16(frame, &uidcounter)) + return false; + + print_field("%*cUIDCounter: 0x%04x (%u)", indent, ' ', + uidcounter, uidcounter); + + if (!l2cap_frame_get_u8(frame, &dir)) + return false; + + print_field("%*cDirection: 0x%02x (%s)", indent, ' ', + dir, dir2str(dir)); + + if (!l2cap_frame_get_be64(frame, &uid)) + return false; + + print_field("%*cFolderUID: 0x%16" PRIx64 " (%" PRIu64 ")", indent, ' ', + uid, uid); + + 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_be32(frame, &items)) + return false; + + print_field("%*cNumber of Items: 0x%04x (%u)", indent, ' ', + items, items); + + return true; +} + static bool avrcp_media_player_item(struct avctp_frame *avctp_frame, uint8_t indent) { @@ -2136,6 +2204,9 @@ static bool avrcp_browsing_packet(struct avctp_frame *avctp_frame) case AVRCP_GET_FOLDER_ITEMS: avrcp_get_folder_items(avctp_frame); break; + case AVRCP_CHANGE_PATH: + avrcp_change_path(avctp_frame); + break; default: packet_hexdump(frame->data, frame->size); } -- 1.9.1