Return-Path: From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH hcidump 11/13] Add parsing for AVRCP GetElementAttributes pdu Date: Mon, 1 Aug 2011 11:42:16 +0300 Message-Id: <1312188138-32265-12-git-send-email-luiz.dentz@gmail.com> In-Reply-To: <1312188138-32265-1-git-send-email-luiz.dentz@gmail.com> References: <1312188138-32265-1-git-send-email-luiz.dentz@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Luiz Augusto von Dentz --- parser/avrcp.c | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 114 insertions(+), 0 deletions(-) diff --git a/parser/avrcp.c b/parser/avrcp.c index bb7bcbb..49a7145 100644 --- a/parser/avrcp.c +++ b/parser/avrcp.c @@ -158,6 +158,16 @@ #define AVRCP_ATTRIBUTE_SHUFFLE 0x03 #define AVRCP_ATTRIBUTE_SCAN 0x04 +/* media attributes */ +#define AVRCP_MEDIA_ATTRIBUTE_ILLEGAL 0x0 +#define AVRCP_MEDIA_ATTRIBUTE_TITLE 0x1 +#define AVRCP_MEDIA_ATTRIBUTE_ARTIST 0x2 +#define AVRCP_MEDIA_ATTRIBUTE_ALBUM 0x3 +#define AVRCP_MEDIA_ATTRIBUTE_TRACK 0x4 +#define AVRCP_MEDIA_ATTRIBUTE_TOTAL 0x5 +#define AVRCP_MEDIA_ATTRIBUTE_GENRE 0x6 +#define AVRCP_MEDIA_ATTRIBUTE_PROGRESS 0x7 + static const char *ctype2str(uint8_t ctype) { switch (ctype & 0x0f) { @@ -879,6 +889,107 @@ static void avrcp_ct_battery_status_dump(int level, struct frame *frm, printf("BatteryStatus: 0x%02x (%s)\n", status, status2str(status)); } +static const char *mediattr2str(uint32_t attr) +{ + switch (attr) { + case AVRCP_MEDIA_ATTRIBUTE_ILLEGAL: + return "Illegal"; + case AVRCP_MEDIA_ATTRIBUTE_TITLE: + return "Title"; + case AVRCP_MEDIA_ATTRIBUTE_ARTIST: + return "Artist"; + case AVRCP_MEDIA_ATTRIBUTE_ALBUM: + return "Album"; + case AVRCP_MEDIA_ATTRIBUTE_TRACK: + return "Track"; + case AVRCP_MEDIA_ATTRIBUTE_TOTAL: + return "Track Total"; + case AVRCP_MEDIA_ATTRIBUTE_GENRE: + return "Genre"; + case AVRCP_MEDIA_ATTRIBUTE_PROGRESS: + return "Progress"; + default: + return "Reserved"; + } +} + +static void avrcp_get_element_attributes_dump(int level, struct frame *frm, + uint8_t ctype, uint16_t len) +{ + uint64_t id; + uint8_t num; + + p_indent(level, frm); + + if (ctype > AVC_CTYPE_GENERAL_INQUIRY) + goto response; + + if (len < 9) { + printf("PDU Malformed\n"); + raw_dump(level, frm); + return; + } + + id = get_u64(frm); + printf("Identifier: 0x%jx (%s)\n", id, id ? "Reserved" : "PLAYING"); + + p_indent(level, frm); + + num = get_u8(frm); + printf("AttributeCount: 0x%02x\n", num); + + for (; num > 0; num--) { + uint32_t attr; + + p_indent(level, frm); + + attr = get_u32(frm); + printf("Attribute: 0x%08x (%s)\n", attr, mediattr2str(attr)); + } + + return; + +response: + if (len < 1) { + printf("PDU Malformed\n"); + raw_dump(level, frm); + return; + } + + num = get_u8(frm); + printf("AttributeCount: 0x%02x\n", num); + + for (; num > 0; num--) { + uint32_t attr; + uint16_t charset, len; + + p_indent(level, frm); + + attr = get_u32(frm); + printf("Attribute: 0x%08x (%s)\n", attr, mediattr2str(attr)); + + p_indent(level, frm); + + charset = get_u16(frm); + printf("CharsetID: 0x%04x (%s)\n", charset, + charset2str(charset)); + + p_indent(level, frm); + + len = get_u16(frm); + printf("AttributeValueLength: 0x%04x\n", len); + + p_indent(level, frm); + + printf("AttributeValue: "); + for (; len > 0; len--) { + uint8_t c = get_u8(frm); + printf("%1c", isprint(c) ? c : '.'); + } + printf("\n"); + } +} + static void avrcp_pdu_dump(int level, struct frame *frm, uint8_t ctype) { uint8_t pduid, pt; @@ -937,6 +1048,9 @@ static void avrcp_pdu_dump(int level, struct frame *frm, uint8_t ctype) case AVRCP_CT_BATTERY_STATUS: avrcp_ct_battery_status_dump(level + 1, frm, ctype, len); break; + case AVRCP_GET_ELEMENT_ATTRIBUTES: + avrcp_get_element_attributes_dump(level + 1, frm, ctype, len); + break; default: raw_dump(level, frm); } -- 1.7.6