Added new control and data path interface between audioflinger a2dp HAL

and stack. Added support for suspend and a dedicated HAL callback
notifying framework on audiopath events. Cleanup.

Change-Id: I3b738611bc8e1d84794f7207413fd9e7dd1fc668

1 files changed, 114 insertions, 0 deletions

diff --git a/audio_a2dp_hw/audio_a2dp_hw.h b/audio_a2dp_hw/audio_a2dp_hw.h
new file mode 100644
index 0000000..77e113a
--- /dev/null
+++ b/audio_a2dp_hw/audio_a2dp_hw.h
@@ -0,0 +1,114 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  This program is the proprietary software of Broadcom Corporation and/or its
+ *  licensors, and may only be used, duplicated, modified or distributed
+ *  pursuant to the terms and conditions of a separate, written license
+ *  agreement executed between you and Broadcom (an "Authorized License").
+ *  Except as set forth in an Authorized License, Broadcom grants no license
+ *  (express or implied), right to use, or waiver of any kind with respect to
+ *  the Software, and Broadcom expressly reserves all rights in and to the
+ *  Software and all intellectual property rights therein.
+ *  IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU HAVE NO RIGHT TO USE THIS
+ *  SOFTWARE IN ANY WAY, AND SHOULD IMMEDIATELY NOTIFY BROADCOM AND DISCONTINUE
+ *  ALL USE OF THE SOFTWARE.
+ *
+ *  Except as expressly set forth in the Authorized License,
+ *
+ *  1.     This program, including its structure, sequence and organization,
+ *         constitutes the valuable trade secrets of Broadcom, and you shall
+ *         use all reasonable efforts to protect the confidentiality thereof,
+ *         and to use this information only in connection with your use of
+ *         Broadcom integrated circuit products.
+ *
+ *  2.     TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED
+ *         "AS IS" AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES,
+ *         REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY,
+ *         OR OTHERWISE, WITH RESPECT TO THE SOFTWARE.  BROADCOM SPECIFICALLY
+ *         DISCLAIMS ANY AND ALL IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY,
+ *         NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES,
+ *         ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ *         CORRESPONDENCE TO DESCRIPTION. YOU ASSUME THE ENTIRE RISK ARISING
+ *         OUT OF USE OR PERFORMANCE OF THE SOFTWARE.
+ *
+ *  3.     TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL BROADCOM
+ *         OR ITS LICENSORS BE LIABLE FOR
+ *         (i)   CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR EXEMPLARY
+ *               DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO
+ *               YOUR USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM
+ *               HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES; OR
+ *         (ii)  ANY AMOUNT IN EXCESS OF THE AMOUNT ACTUALLY PAID FOR THE
+ *               SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE
+ *               LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF
+ *               ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.
+ *
+ *****************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      audio_a2dp_hw.h
+ *
+ *  Description:
+ *
+ *****************************************************************************/
+
+#ifndef AUDIO_A2DP_HW_H
+#define AUDIO_A2DP_HW_H
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define A2DP_AUDIO_HARDWARE_INTERFACE "audio.a2dp"
+#define A2DP_CTRL_PATH "/data/misc/bluedroid/.a2dp_ctrl"
+#define A2DP_DATA_PATH "/data/misc/bluedroid/.a2dp_data"
+
+#define AUDIO_CHANNEL_DEFAULT_RATE          44100
+#define AUDIO_CHANNEL_DEFAULT_FORMAT        AUDIO_FORMAT_PCM_16_BIT
+#define AUDIO_CHANNEL_OUTPUT_BUFFER_SZ      (20*512)
+#define AUDIO_SKT_DISCONNECTED              (-1)
+
+typedef enum {
+    A2DP_CTRL_CMD_NONE,
+    A2DP_CTRL_CMD_CHECK_READY,
+    A2DP_CTRL_CMD_START,
+    A2DP_CTRL_CMD_STOP,
+    A2DP_CTRL_CMD_SUSPEND
+} tA2DP_CTRL_CMD;
+
+typedef enum {
+    A2DP_CTRL_ACK_SUCCESS,
+    A2DP_CTRL_ACK_FAILURE
+} tA2DP_CTRL_ACK;
+
+
+/*****************************************************************************
+**  Type definitions for callback functions
+******************************************************************************/
+
+/*****************************************************************************
+**  Type definitions and return values
+******************************************************************************/
+
+/*****************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+/*****************************************************************************
+**  Functions
+******************************************************************************/
+
+
+/*****************************************************************************
+**
+** Function
+**
+** Description
+**
+** Returns
+**
+******************************************************************************/
+
+#endif /* A2DP_AUDIO_HW_H */
+