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authorAndre Eisenbach <andre@broadcom.com>2012-02-22 13:18:21 -0800
committerMatthew Xie <mattx@google.com>2012-07-14 11:19:11 -0700
commite448862a47c08eb23185aaed574b39264f5005fc (patch)
tree2bc6246e3091315e77224fd798ea2fe8074ef972 /stack/avrc/avrc_opt.c
parenta2ca4b83ab8bbbfd8d5f6693e927ed4b82094624 (diff)
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Initial Bluedroid stack commit
Diffstat (limited to 'stack/avrc/avrc_opt.c')
-rw-r--r--stack/avrc/avrc_opt.c222
1 files changed, 222 insertions, 0 deletions
diff --git a/stack/avrc/avrc_opt.c b/stack/avrc/avrc_opt.c
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+/*****************************************************************************
+**
+** Name: avrc_opt.c
+**
+** Description:Interface to AVRCP optional commands
+**
+** Copyright (c) 2003-2006, Broadcom Corp., All Rights Reserved.
+** Broadcom Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+#include <string.h>
+
+#include "gki.h"
+#include "avrc_api.h"
+#include "avrc_int.h"
+
+#include "wcassert.h"
+
+
+/******************************************************************************
+**
+** Function avrc_vendor_msg
+**
+** Description Compose a VENDOR DEPENDENT command according to p_msg
+**
+** Input Parameters:
+** p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+** Output Parameters:
+** None.
+**
+** Returns pointer to a valid GKI buffer if successful.
+** NULL if p_msg is NULL.
+**
+******************************************************************************/
+static BT_HDR * avrc_vendor_msg(tAVRC_MSG_VENDOR *p_msg)
+{
+ BT_HDR *p_cmd;
+ UINT8 *p_data;
+
+ WC_ASSERT(p_msg != NULL);
+
+#if AVRC_METADATA_INCLUDED == TRUE
+ WC_ASSERT(AVRC_META_CMD_POOL_SIZE > (AVRC_MIN_CMD_LEN+p_msg->vendor_len));
+ if ((p_cmd = (BT_HDR *) GKI_getpoolbuf(AVRC_META_CMD_POOL_ID)) != NULL)
+#else
+ WC_ASSERT(AVRC_CMD_POOL_SIZE > (AVRC_MIN_CMD_LEN+p_msg->vendor_len));
+ if ((p_cmd = (BT_HDR *) GKI_getpoolbuf(AVRC_CMD_POOL_ID)) != NULL)
+#endif
+ {
+ p_cmd->offset = AVCT_MSG_OFFSET;
+ p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+ *p_data++ = (p_msg->hdr.ctype & AVRC_CTYPE_MASK);
+ *p_data++ = (p_msg->hdr.subunit_type << AVRC_SUBTYPE_SHIFT) | p_msg->hdr.subunit_id;
+ *p_data++ = AVRC_OP_VENDOR;
+ AVRC_CO_ID_TO_BE_STREAM(p_data, p_msg->company_id);
+ if(p_msg->vendor_len && p_msg->p_vendor_data)
+ {
+ memcpy(p_data, p_msg->p_vendor_data, p_msg->vendor_len);
+ }
+ p_cmd->len = (UINT16) (p_data + p_msg->vendor_len - (UINT8 *)(p_cmd + 1) - p_cmd->offset);
+ p_cmd->layer_specific = AVCT_DATA_CTRL;
+ }
+ return p_cmd;
+}
+
+/******************************************************************************
+**
+** Function AVRC_UnitCmd
+**
+** Description Send a UNIT INFO command to the peer device. This
+** function can only be called for controller role connections.
+** Any response message from the peer is passed back through
+** the tAVRC_MSG_CBACK callback function.
+**
+** Input Parameters:
+** handle: Handle of this connection.
+**
+** label: Transaction label.
+**
+** Output Parameters:
+** None.
+**
+** Returns AVRC_SUCCESS if successful.
+** AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_UnitCmd(UINT8 handle, UINT8 label)
+{
+ BT_HDR *p_cmd;
+ UINT8 *p_data;
+
+ if ((p_cmd = (BT_HDR *) GKI_getpoolbuf(AVRC_CMD_POOL_ID)) != NULL)
+ {
+ p_cmd->offset = AVCT_MSG_OFFSET;
+ p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+ *p_data++ = AVRC_CMD_STATUS;
+ /* unit & id ignore */
+ *p_data++ = (AVRC_SUB_UNIT << AVRC_SUBTYPE_SHIFT) | AVRC_SUBID_IGNORE;
+ *p_data++ = AVRC_OP_UNIT_INFO;
+ memset(p_data, AVRC_CMD_OPRND_PAD, AVRC_UNIT_OPRND_BYTES);
+ p_cmd->len = p_data + AVRC_UNIT_OPRND_BYTES - (UINT8 *)(p_cmd + 1) - p_cmd->offset;
+ p_cmd->layer_specific = AVCT_DATA_CTRL;
+ }
+ return AVCT_MsgReq( handle, label, AVCT_CMD, p_cmd);
+}
+
+/******************************************************************************
+**
+** Function AVRC_SubCmd
+**
+** Description Send a SUBUNIT INFO command to the peer device. This
+** function can only be called for controller role connections.
+** Any response message from the peer is passed back through
+** the tAVRC_MSG_CBACK callback function.
+**
+** Input Parameters:
+** handle: Handle of this connection.
+**
+** label: Transaction label.
+**
+** page: Specifies which part of the subunit type table
+** is requested. For AVRCP it is typically zero.
+** Value range is 0-7.
+**
+** Output Parameters:
+** None.
+**
+** Returns AVRC_SUCCESS if successful.
+** AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_SubCmd(UINT8 handle, UINT8 label, UINT8 page)
+{
+ BT_HDR *p_cmd;
+ UINT8 *p_data;
+
+ if ((p_cmd = (BT_HDR *) GKI_getpoolbuf(AVRC_CMD_POOL_ID)) != NULL)
+ {
+ p_cmd->offset = AVCT_MSG_OFFSET;
+ p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+ *p_data++ = AVRC_CMD_STATUS;
+ /* unit & id ignore */
+ *p_data++ = (AVRC_SUB_UNIT << AVRC_SUBTYPE_SHIFT) | AVRC_SUBID_IGNORE;
+ *p_data++ = AVRC_OP_SUB_INFO;
+ *p_data++ = ((page&AVRC_SUB_PAGE_MASK) << AVRC_SUB_PAGE_SHIFT) | AVRC_SUB_EXT_CODE;
+ memset(p_data, AVRC_CMD_OPRND_PAD, AVRC_SUB_OPRND_BYTES);
+ p_cmd->len = p_data + AVRC_SUB_OPRND_BYTES - (UINT8 *)(p_cmd + 1) - p_cmd->offset;
+ p_cmd->layer_specific = AVCT_DATA_CTRL;
+ }
+ return AVCT_MsgReq( handle, label, AVCT_CMD, p_cmd);
+}
+
+/******************************************************************************
+**
+** Function AVRC_VendorCmd
+**
+** Description Send a VENDOR DEPENDENT command to the peer device. This
+** function can only be called for controller role connections.
+** Any response message from the peer is passed back through
+** the tAVRC_MSG_CBACK callback function.
+**
+** Input Parameters:
+** handle: Handle of this connection.
+**
+** label: Transaction label.
+**
+** p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+** Output Parameters:
+** None.
+**
+** Returns AVRC_SUCCESS if successful.
+** AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_VendorCmd(UINT8 handle, UINT8 label, tAVRC_MSG_VENDOR *p_msg)
+{
+ BT_HDR *p_buf = avrc_vendor_msg(p_msg);
+ if (p_buf)
+ return AVCT_MsgReq( handle, label, AVCT_CMD, p_buf);
+ else
+ return AVCT_NO_RESOURCES;
+}
+
+
+/******************************************************************************
+**
+** Function AVRC_VendorRsp
+**
+** Description Send a VENDOR DEPENDENT response to the peer device. This
+** function can only be called for target role connections.
+** This function must be called when a VENDOR DEPENDENT
+** command message is received from the peer through the
+** tAVRC_MSG_CBACK callback function.
+**
+** Input Parameters:
+** handle: Handle of this connection.
+**
+** label: Transaction label. Must be the same value as
+** passed with the command message in the callback function.
+**
+** p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+** Output Parameters:
+** None.
+**
+** Returns AVRC_SUCCESS if successful.
+** AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_VendorRsp(UINT8 handle, UINT8 label, tAVRC_MSG_VENDOR *p_msg)
+{
+ BT_HDR *p_buf = avrc_vendor_msg(p_msg);
+ if (p_buf)
+ return AVCT_MsgReq( handle, label, AVCT_RSP, p_buf);
+ else
+ return AVCT_NO_RESOURCES;
+}
+
+
+