Hi Andrei,
On Wed, Feb 26, 2014 at 3:32 PM, Andrei Emeltchenko
<Andrei.Emeltchenko.news@xxxxxxxxx> wrote:
> From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
>
> Implement avrcp_get_capabilities() request through
> avrcp_send_vendordep_req(). avctp_send_req() is not exported so we use
> the functions which are exported by AVCTP code.
> ---
> android/avrcp-lib.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
> android/avrcp-lib.h | 2 ++
> android/avrcp.c | 1 +
> 3 files changed, 51 insertions(+)
>
> diff --git a/android/avrcp-lib.c b/android/avrcp-lib.c
> index 2e5a565..cf4cdaa 100644
> --- a/android/avrcp-lib.c
> +++ b/android/avrcp-lib.c
> @@ -50,6 +50,18 @@
> #define AVRCP_STATUS_NO_AVAILABLE_PLAYERS 0x15
> #define AVRCP_STATUS_ADDRESSED_PLAYER_CHANGED 0x16
>
> +/* Packet types */
> +#define AVRCP_PACKET_TYPE_SINGLE 0x00
> +#define AVRCP_PACKET_TYPE_START 0x01
> +#define AVRCP_PACKET_TYPE_CONTINUING 0x02
> +#define AVRCP_PACKET_TYPE_END 0x03
> +
> +/* Capabilities for AVRCP_GET_CAPABILITIES pdu */
> +#define CAP_COMPANY_ID 0x02
> +#define CAP_EVENTS_SUPPORTED 0x03
> +
> +#define AVRCP_GET_CAPABILITIES_PARAM_LENGTH 1
> +
> #if __BYTE_ORDER == __LITTLE_ENDIAN
>
> struct avrcp_header {
> @@ -92,6 +104,13 @@ static inline uint32_t ntoh24(const uint8_t src[3])
> #error "Unknown byte order"
> #endif
>
> +static inline void hton24(uint8_t dst[3], uint32_t src)
> +{
> + dst[0] = (src >> 16) & 0xff;
> + dst[1] = (src >> 8) & 0xff;
> + dst[2] = src & 0xff;
> +}
> +
> struct avrcp {
> struct avctp *conn;
>
> @@ -255,3 +274,32 @@ int avrcp_init_uinput(struct avrcp *session, const char *name,
> {
> return avctp_init_uinput(session->conn, name, address);
> }
> +
> +static int avrcp_send_vendordep_req(struct avrcp *session, uint8_t code,
> + uint8_t subunit, uint8_t *operands,
> + size_t operand_count,
> + avctp_rsp_cb func, void *user_data)
> +{
> + return avctp_send_vendordep_req(session->conn, code, subunit, operands,
> + operand_count, func, user_data);
> +}
> +
> +void avrcp_get_capabilities(struct avrcp *session, avctp_rsp_cb func)
> +{
> + uint8_t buf[AVRCP_HEADER_LENGTH + AVRCP_GET_CAPABILITIES_PARAM_LENGTH];
> + struct avrcp_header *pdu = (void *) buf;
> + uint8_t length;
> +
> + memset(buf, 0, sizeof(buf));
> +
> + hton24(pdu->company_id, IEEEID_BTSIG);
> + pdu->pdu_id = AVRCP_GET_CAPABILITIES;
> + pdu->packet_type = AVRCP_PACKET_TYPE_SINGLE;
> + pdu->params[0] = CAP_EVENTS_SUPPORTED;
> + pdu->params_len = htons(AVRCP_GET_CAPABILITIES_PARAM_LENGTH);
> +
> + length = AVRCP_HEADER_LENGTH + ntohs(pdu->params_len);
> +
> + avrcp_send_vendordep_req(session, AVC_CTYPE_STATUS, AVC_SUBUNIT_PANEL,
> + buf, length, func, session);
> +}
> diff --git a/android/avrcp-lib.h b/android/avrcp-lib.h
> index 2337429..4f3a632 100644
> --- a/android/avrcp-lib.h
> +++ b/android/avrcp-lib.h
> @@ -74,3 +74,5 @@ void avrcp_set_passthrough_handlers(struct avrcp *session,
> void *user_data);
> int avrcp_init_uinput(struct avrcp *session, const char *name,
> const char *address);
> +
> +void avrcp_get_capabilities(struct avrcp *session, avctp_rsp_cb func);
> diff --git a/android/avrcp.c b/android/avrcp.c
> index 48444a4..3d39d91 100644
> --- a/android/avrcp.c
> +++ b/android/avrcp.c
> @@ -36,6 +36,7 @@
> #include "bluetooth.h"
> #include "hal-msg.h"
> #include "ipc.h"
> +#include "avctp.h"
> #include "avrcp-lib.h"
> #include "avrcp.h"
>
> --
> 1.8.3.2
Applied after changing it quite a bit.
--
Luiz Augusto von Dentz
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