Hi Lucas,
On Wed, Jul 13, 2011 at 9:01 PM, Lucas De Marchi
<lucas.demarchi@xxxxxxxxxxxxxx> wrote:
> On Tue, Jul 12, 2011 at 11:50 AM, Luiz Augusto von Dentz
> <luiz.dentz@xxxxxxxxx> wrote:
>> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>>
>> ---
>> parser/avrcp.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
>> 1 files changed, 123 insertions(+), 1 deletions(-)
>>
>> diff --git a/parser/avrcp.c b/parser/avrcp.c
>> index 43e8a8b..ff6862d 100644
>> --- a/parser/avrcp.c
>> +++ b/parser/avrcp.c
>> @@ -111,6 +111,21 @@
>> #define AVRCP_SEARCH 0x80
>> #define AVRCP_ADD_TO_NOW_PLAYING 0x90
>>
>> +/* notification events */
>> +#define AVRCP_EVENT_PLAYBACK_STATUS_CHANGED 0x01
>> +#define AVRCP_EVENT_TRACK_CHANGED 0x02
>> +#define AVRCP_EVENT_TRACK_REACHED_END 0x03
>> +#define AVRCP_EVENT_TRACK_REACHED_START 0x04
>> +#define AVRCP_EVENT_PLAYBACK_POS_CHANGED 0x05
>> +#define AVRCP_EVENT_BATT_STATUS_CHANGED 0x06
>> +#define AVRCP_EVENT_SYSTEM_STATUS_CHANGED 0x07
>> +#define AVRCP_EVENT_PLAYER_APPLICATION_SETTING_CHANGED 0x08
>> +#define AVRCP_EVENT_NOW_PLAYING_CONTENT_CHANGED 0x09
>> +#define AVRCP_EVENT_AVAILABLE_PLAYERS_CHANGED 0x0a
>> +#define AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED 0x0b
>> +#define AVRCP_EVENT_UIDS_CHANGED 0x0c
>> +#define AVRCP_EVENT_VOLUME_CHANGED 0x0d
>> +
>> static const char *ctype2str(uint8_t ctype)
>> {
>> switch (ctype & 0x0f) {
>> @@ -213,6 +228,105 @@ static const char *pdu2str(uint8_t pduid)
>> }
>> }
>>
>> +static char *cap2str(uint8_t cap)
>> +{
>> + switch (cap) {
>> + case 0x2:
>> + return "CompanyID";
>> + case 0x3:
>> + return "EventsID";
>> + default:
>> + return "Unknown";
>> + }
>> +}
>> +
>> +static char *event2str(uint8_t event)
>> +{
>> + switch (event) {
>> + case AVRCP_EVENT_PLAYBACK_STATUS_CHANGED:
>> + return "EVENT_PLAYBACK_STATUS_CHANGED";
>> + case AVRCP_EVENT_TRACK_CHANGED:
>> + return "EVENT_TRACK_CHANGED";
>> + case AVRCP_EVENT_TRACK_REACHED_END:
>> + return "EVENT_TRACK_REACHED_END";
>> + case AVRCP_EVENT_TRACK_REACHED_START:
>> + return "EVENT_TRACK_REACHED_START";
>> + case AVRCP_EVENT_PLAYBACK_POS_CHANGED:
>> + return "EVENT_PLAYBACK_POS_CHANGED";
>> + case AVRCP_EVENT_BATT_STATUS_CHANGED:
>> + return "EVENT_BATT_STATUS_CHANGED";
>> + case AVRCP_EVENT_SYSTEM_STATUS_CHANGED:
>> + return "EVENT_SYSTEM_STATUS_CHANGED";
>> + case AVRCP_EVENT_PLAYER_APPLICATION_SETTING_CHANGED:
>> + return "EVENT_PLAYER_APPLICATION_SETTING_CHANGED";
>> + case AVRCP_EVENT_NOW_PLAYING_CONTENT_CHANGED:
>> + return "EVENT_NOW_PLAYING_CONTENT_CHANGED";
>> + case AVRCP_EVENT_AVAILABLE_PLAYERS_CHANGED:
>> + return "EVENT_AVAILABLE_PLAYERS_CHANGED";
>> + case AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED:
>> + return "EVENT_ADDRESSED_PLAYER_CHANGED";
>> + case AVRCP_EVENT_UIDS_CHANGED:
>> + return "EVENT_UIDS_CHANGED";
>> + case AVRCP_EVENT_VOLUME_CHANGED:
>> + return "EVENT_VOLUME_CHANGED";
>> + default:
>> + return "Reserved";
>> + }
>> +}
>> +
>> +static void avrcp_get_capabilities_dump(int level, struct frame *frm, uint16_t len)
>> +{
>> + uint8_t cap;
>> + uint8_t count;
>> +
>> + p_indent(level, frm);
>> +
>> + if (len < 1) {
>> + printf("PDU Malformed\n");
>> + raw_dump(level, frm);
>> + return;
>> + }
>> +
>> + cap = get_u8(frm);
>> + printf("CapabilityID: 0x%02x (%s)\n", cap, cap2str(cap));
>> +
>> + if (len == 1)
>> + return;
>> +
>> + p_indent(level, frm);
>> +
>> + count = get_u8(frm);
>> + printf("CapabilityCount: 0x%02x\n", count);
>> +
>> + switch (cap) {
>> + case 0x2:
>> + for (; count > 0; count--) {
>> + int i;
>> +
>> + p_indent(level, frm);
>> +
>> + printf("%s: 0x", cap2str(cap));
>> + for (i = 0; i < 3; i++)
>> + printf("%02x", get_u8(frm));
>
> Humn... I think this is not what you want. Since this information is
> always in big endian order, you may need to convert it to host
> architecture in order to see meaningful numbers. E.g.: if you do like
> you're doing, when receiving a packet with COMPANY_ID == IEEE_BTSIG,
> the information printed will be 0x581900 instead of the expected
> 0x001958.
It works just fine, we are printing byte by byte as it comes e.g. sony mw600:
> AVCTP: Command : pt 0x00 transaction 5 pid 0x110e
AV/C: Status: address 0x48 opcode 0x00
Subunit: Panel
Opcode: Vendor Dependent
Company ID: 0x001958
AVRCP: GetCapabilities: pt 0x00 len 0x0001
CapabilityID: 0x02 (CompanyID)
--
Luiz Augusto von Dentz
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