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+/******************************************************************************
+ *
+ * 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.
+ *
+ ******************************************************************************/
+
+#ifndef BT_HCI_LIB_H
+#define BT_HCI_LIB_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+/** Struct types */
+
+
+/** Typedefs and defines */
+
+/* Generic purpose transac returned upon request complete */
+typedef void* TRANSAC;
+
+/** Bluetooth Power Control States */
+typedef enum {
+ BT_HC_CHIP_PWR_OFF,
+ BT_HC_CHIP_PWR_ON,
+} bt_hc_chip_power_state_t;
+
+/** Bluetooth Low Power Mode */
+typedef enum {
+ BT_HC_LPM_DISABLE,
+ BT_HC_LPM_ENABLE,
+ BT_HC_LPM_WAKE_ASSERT,
+ BT_HC_LPM_WAKE_DEASSERT,
+} bt_hc_low_power_event_t;
+
+/** Receive flow control */
+typedef enum {
+ BT_RXFLOW_OFF, /* add transport device fd to select set */
+ BT_RXFLOW_ON, /* remove transport device to from select set */
+} bt_rx_flow_state_t;
+
+/** HCI logging control */
+typedef enum {
+ BT_HC_LOGGING_OFF,
+ BT_HC_LOGGING_ON,
+} bt_hc_logging_state_t;
+
+/** Result of write request */
+typedef enum {
+ BT_HC_TX_SUCCESS, /* a buffer is fully processed and can be released */
+ BT_HC_TX_FAIL, /* transmit fail */
+ BT_HC_TX_FRAGMENT, /* send split ACL pkt back to stack to reprocess */
+} bt_hc_transmit_result_t;
+
+/** Result of preload initialization */
+typedef enum {
+ BT_HC_PRELOAD_SUCCESS,
+ BT_HC_PRELOAD_FAIL,
+} bt_hc_preload_result_t;
+
+/** Result of postload initialization */
+typedef enum {
+ BT_HC_POSTLOAD_SUCCESS,
+ BT_HC_POSTLOAD_FAIL,
+} bt_hc_postload_result_t;
+
+/** Result of low power enable/disable request */
+typedef enum {
+ BT_HC_LPM_DISABLED,
+ BT_HC_LPM_ENABLED,
+} bt_hc_lpm_request_result_t;
+
+/** Host/Controller Library Return Status */
+typedef enum {
+ BT_HC_STATUS_SUCCESS,
+ BT_HC_STATUS_FAIL,
+ BT_HC_STATUS_NOT_READY,
+ BT_HC_STATUS_NOMEM,
+ BT_HC_STATUS_BUSY,
+ BT_HC_STATUS_CORRUPTED_BUFFER
+} bt_hc_status_t;
+
+
+/* Section comment */
+
+/*
+ * Bluetooth Host/Controller callback structure.
+ */
+
+/* called upon bt host wake signal */
+typedef void (*hostwake_ind_cb)(bt_hc_low_power_event_t event);
+
+/* preload initialization callback */
+typedef void (*preload_result_cb)(TRANSAC transac, bt_hc_preload_result_t result);
+
+/* postload initialization callback */
+typedef void (*postload_result_cb)(TRANSAC transac, bt_hc_postload_result_t result);
+
+/* lpm enable/disable callback */
+typedef void (*lpm_result_cb)(bt_hc_lpm_request_result_t result);
+
+/* datapath buffer allocation callback (callout) */
+typedef char* (*alloc_mem_cb)(int size);
+
+/* datapath buffer deallocation callback (callout) */
+typedef int (*dealloc_mem_cb)(TRANSAC transac, char *p_buf);
+
+/* transmit result callback */
+typedef int (*tx_result_cb)(TRANSAC transac, char *p_buf, bt_hc_transmit_result_t result);
+
+/* a previously setup buffer is read and available for processing
+ buffer is deallocated in stack when processed */
+typedef int (*data_ind_cb)(TRANSAC transac, char *p_buf, int len);
+
+typedef struct {
+ /** set to sizeof(bt_hc_callbacks_t) */
+ size_t size;
+
+ /* notifies caller result of preload request */
+ preload_result_cb preload_cb;
+
+ /* notifies caller result of postload request */
+ postload_result_cb postload_cb;
+
+ /* notifies caller result of lpm enable/disable */
+ lpm_result_cb lpm_cb;
+
+ /* notifies hardware on host wake state */
+ hostwake_ind_cb hostwake_ind;
+
+ /* buffer allocation request */
+ alloc_mem_cb alloc;
+
+ /* buffer deallocation request */
+ dealloc_mem_cb dealloc;
+
+ /* notifies stack data is available */
+ data_ind_cb data_ind;
+
+ /* notifies caller when a buffer is transmitted (or failed) */
+ tx_result_cb tx_result;
+} bt_hc_callbacks_t;
+
+/*
+ * Bluetooth Host/Controller Interface
+ */
+typedef struct {
+ /** Set to sizeof(bt_hc_interface_t) */
+ size_t size;
+
+ /**
+ * Opens the interface and provides the callback routines
+ * to the implemenation of this interface.
+ */
+ int (*init)(const bt_hc_callbacks_t* p_cb, unsigned char *local_bdaddr);
+
+ /** Chip power control */
+ void (*set_power)(bt_hc_chip_power_state_t state);
+
+ /** Set low power mode wake */
+ int (*lpm)(bt_hc_low_power_event_t event);
+
+ /** Called prior to stack initialization */
+ void (*preload)(TRANSAC transac);
+
+ /** Called post stack initialization */
+ void (*postload)(TRANSAC transac);
+
+ /** Transmit buffer */
+ int (*transmit_buf)(TRANSAC transac, char *p_buf, int len);
+
+ /** Controls receive flow */
+ int (*set_rxflow)(bt_rx_flow_state_t state);
+
+ /** Controls HCI logging on/off */
+ int (*logging)(bt_hc_logging_state_t state, char *p_path);
+
+ /** Closes the interface */
+ void (*cleanup)( void );
+} bt_hc_interface_t;
+
+
+/*
+ * External shared lib functions
+ */
+
+extern const bt_hc_interface_t* bt_hc_get_interface(void);
+
+#endif /* BT_HCI_LIB_H */
+