Snapshot cdeccf6fdd8c2d494ea2867cb37a025bf8879baf
Change-Id: Ia2de32ccb97a9641462c72363b0a8c4288f4f36d
diff --git a/main/bte_main.c b/main/bte_main.c
new file mode 100644
index 0000000..4e7e37c
--- /dev/null
+++ b/main/bte_main.c
@@ -0,0 +1,570 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Filename: bte_main.c
+ *
+ * Description: Contains BTE core stack initialization and shutdown code
+ *
+ ******************************************************************************/
+#include <fcntl.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "gki.h"
+#include "bd.h"
+#include "btu.h"
+#include "bte.h"
+#include "bta_api.h"
+#include "bt_hci_lib.h"
+
+/*******************************************************************************
+** Constants & Macros
+*******************************************************************************/
+
+/* Run-time configuration file */
+#ifndef BTE_STACK_CONF_FILE
+#define BTE_STACK_CONF_FILE "/etc/bluetooth/bt_stack.conf"
+#endif
+
+/* if not specified in .txt file then use this as default */
+#ifndef HCI_LOGGING_FILENAME
+#define HCI_LOGGING_FILENAME "/data/misc/bluedroid/btsnoop_hci.log"
+#endif
+
+/*******************************************************************************
+** Local type definitions
+*******************************************************************************/
+
+/******************************************************************************
+** Variables
+******************************************************************************/
+BOOLEAN hci_logging_enabled = FALSE; /* by default, turn hci log off */
+char hci_logfile[256] = HCI_LOGGING_FILENAME;
+
+
+/*******************************************************************************
+** Static variables
+*******************************************************************************/
+static bt_hc_interface_t *bt_hc_if=NULL;
+static const bt_hc_callbacks_t hc_callbacks;
+static BOOLEAN lpm_enabled = FALSE;
+
+/*******************************************************************************
+** Static functions
+*******************************************************************************/
+static void bte_main_in_hw_init(void);
+
+/*******************************************************************************
+** Externs
+*******************************************************************************/
+BTU_API extern UINT32 btu_task (UINT32 param);
+BTU_API extern void BTE_Init (void);
+BT_API extern void BTE_LoadStack(void);
+BT_API void BTE_UnloadStack(void);
+extern void scru_flip_bda (BD_ADDR dst, const BD_ADDR src);
+extern void bte_load_conf(const char *p_path);
+
+
+/*******************************************************************************
+** System Task Configuration
+*******************************************************************************/
+
+/* bluetooth protocol stack (BTU) task */
+#ifndef BTE_BTU_STACK_SIZE
+#define BTE_BTU_STACK_SIZE 0//0x2000 /* In bytes */
+#endif
+#define BTE_BTU_TASK_STR ((INT8 *) "BTU")
+UINT32 bte_btu_stack[(BTE_BTU_STACK_SIZE + 3) / 4];
+
+/******************************************************************************
+**
+** Function bte_main_in_hw_init
+**
+** Description Internal helper function for chip hardware init
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_in_hw_init(void)
+{
+ if ( (bt_hc_if = (bt_hc_interface_t *) bt_hc_get_interface()) \
+ == NULL)
+ {
+ APPL_TRACE_ERROR0("!!! Failed to get BtHostControllerInterface !!!");
+ }
+}
+
+/******************************************************************************
+**
+** Function bte_main_boot_entry
+**
+** Description BTE MAIN API - Entry point for BTE chip/stack initialization
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_boot_entry(void)
+{
+ /* initialize OS */
+ GKI_init();
+
+ bte_main_in_hw_init();
+
+ bte_load_conf(BTE_STACK_CONF_FILE);
+
+#if (BTTRC_INCLUDED == TRUE)
+ /* Initialize trace feature */
+ BTTRC_TraceInit(MAX_TRACE_RAM_SIZE, &BTE_TraceLogBuf[0], BTTRC_METHOD_RAM);
+#endif
+}
+
+/******************************************************************************
+**
+** Function bte_main_shutdown
+**
+** Description BTE MAIN API - Shutdown code for BTE chip/stack
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_shutdown()
+{
+ GKI_shutdown();
+}
+
+/******************************************************************************
+**
+** Function bte_main_enable
+**
+** Description BTE MAIN API - Creates all the BTE tasks. Should be called
+** part of the Bluetooth stack enable sequence
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_enable(uint8_t *local_addr)
+{
+ APPL_TRACE_DEBUG1("%s", __FUNCTION__);
+
+ /* Initialize BTE control block */
+ BTE_Init();
+
+ lpm_enabled = FALSE;
+
+ if (bt_hc_if)
+ {
+ int result = bt_hc_if->init(&hc_callbacks, local_addr);
+ APPL_TRACE_EVENT1("libbt-hci init returns %d", result);
+
+ assert(result == BT_HC_STATUS_SUCCESS);
+
+ if (hci_logging_enabled == TRUE)
+ bt_hc_if->logging(BT_HC_LOGGING_ON, hci_logfile);
+
+#if (defined (BT_CLEAN_TURN_ON_DISABLED) && BT_CLEAN_TURN_ON_DISABLED == TRUE)
+ APPL_TRACE_DEBUG1("%s Not Turninig Off the BT before Turninig ON", __FUNCTION__);
+
+ /* Do not power off the chip before powering on if BT_CLEAN_TURN_ON_DISABLED flag
+ is defined and set to TRUE to avoid below mentioned issue.
+
+ Wingray kernel driver maintains a combined counter to keep track of
+ BT-Wifi state. Invoking set_power(BT_HC_CHIP_PWR_OFF) when the BT is already
+ in OFF state causes this counter to be incorrectly decremented and results in undesired
+ behavior of the chip.
+
+ This is only a workaround and when the issue is fixed in the kernel this work around
+ should be removed. */
+#else
+ /* toggle chip power to ensure we will reset chip in case
+ a previous stack shutdown wasn't completed gracefully */
+ bt_hc_if->set_power(BT_HC_CHIP_PWR_OFF);
+#endif
+ bt_hc_if->set_power(BT_HC_CHIP_PWR_ON);
+
+ bt_hc_if->preload(NULL);
+ }
+
+ GKI_create_task((TASKPTR)btu_task, BTU_TASK, BTE_BTU_TASK_STR,
+ (UINT16 *) ((UINT8 *)bte_btu_stack + BTE_BTU_STACK_SIZE),
+ sizeof(bte_btu_stack));
+
+ GKI_run(0);
+}
+
+/******************************************************************************
+**
+** Function bte_main_disable
+**
+** Description BTE MAIN API - Destroys all the BTE tasks. Should be called
+** part of the Bluetooth stack disable sequence
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_disable(void)
+{
+ APPL_TRACE_DEBUG1("%s", __FUNCTION__);
+
+ if (bt_hc_if)
+ {
+ bt_hc_if->cleanup();
+ bt_hc_if->set_power(BT_HC_CHIP_PWR_OFF);
+ }
+
+ GKI_destroy_task(BTU_TASK);
+
+ GKI_freeze();
+}
+
+/******************************************************************************
+**
+** Function bte_main_postload_cfg
+**
+** Description BTE MAIN API - Stack postload configuration
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_postload_cfg(void)
+{
+ if (bt_hc_if)
+ bt_hc_if->postload(NULL);
+}
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+/******************************************************************************
+**
+** Function bte_main_enable_lpm
+**
+** Description BTE MAIN API - Enable/Disable low power mode operation
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_enable_lpm(BOOLEAN enable)
+{
+ int result = -1;
+
+ if (bt_hc_if)
+ result = bt_hc_if->lpm( \
+ (enable == TRUE) ? BT_HC_LPM_ENABLE : BT_HC_LPM_DISABLE \
+ );
+
+ APPL_TRACE_EVENT2("HC lib lpm enable=%d return %d", enable, result);
+}
+
+/******************************************************************************
+**
+** Function bte_main_lpm_allow_bt_device_sleep
+**
+** Description BTE MAIN API - Allow BT controller goest to sleep
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_lpm_allow_bt_device_sleep()
+{
+ int result = -1;
+
+ if ((bt_hc_if) && (lpm_enabled == TRUE))
+ result = bt_hc_if->lpm(BT_HC_LPM_WAKE_DEASSERT);
+
+ APPL_TRACE_DEBUG1("HC lib lpm deassertion return %d", result);
+}
+
+/******************************************************************************
+**
+** Function bte_main_lpm_wake_bt_device
+**
+** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_lpm_wake_bt_device()
+{
+ int result = -1;
+
+ if ((bt_hc_if) && (lpm_enabled == TRUE))
+ result = bt_hc_if->lpm(BT_HC_LPM_WAKE_ASSERT);
+
+ APPL_TRACE_DEBUG1("HC lib lpm assertion return %d", result);
+}
+#endif // HCILP_INCLUDED
+
+/******************************************************************************
+**
+** Function bte_main_hci_send
+**
+** Description BTE MAIN API - This function is called by the upper stack to
+** send an HCI message. The function displays a protocol trace
+** message (if enabled), and then calls the 'transmit' function
+** associated with the currently selected HCI transport
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_hci_send (BT_HDR *p_msg, UINT16 event)
+{
+ UINT16 sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
+
+ p_msg->event = event;
+
+
+ if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
+ (sub_event == LOCAL_BLE_CONTROLLER_ID))
+ {
+ if (bt_hc_if)
+ bt_hc_if->transmit_buf((TRANSAC)p_msg, \
+ (char *) (p_msg + 1), \
+ p_msg->len);
+ else
+ GKI_freebuf(p_msg);
+ }
+ else
+ {
+ APPL_TRACE_ERROR0("Invalid Controller ID. Discarding message.");
+ GKI_freebuf(p_msg);
+ }
+}
+
+/******************************************************************************
+**
+** Function bte_main_post_reset_init
+**
+** Description BTE MAIN API - This function is mapped to BTM_APP_DEV_INIT
+** and shall be automatically called from BTE after HCI_Reset
+**
+** Returns None
+**
+******************************************************************************/
+void bte_main_post_reset_init()
+{
+ BTM_ContinueReset();
+}
+
+/*****************************************************************************
+**
+** libbt-hci Callback Functions
+**
+*****************************************************************************/
+
+/******************************************************************************
+**
+** Function preload_cb
+**
+** Description HOST/CONTROLLER LIB CALLBACK API - This function is called
+** when the libbt-hci completed stack preload process
+**
+** Returns None
+**
+******************************************************************************/
+static void preload_cb(TRANSAC transac, bt_hc_preload_result_t result)
+{
+ APPL_TRACE_EVENT1("HC preload_cb %d [0:SUCCESS 1:FAIL]", result);
+
+ /* notify BTU task that libbt-hci is ready */
+ /* even if PRELOAD process failed */
+ GKI_send_event(BTU_TASK, TASK_MBOX_0_EVT_MASK);
+}
+
+/******************************************************************************
+**
+** Function postload_cb
+**
+** Description HOST/CONTROLLER LIB CALLBACK API - This function is called
+** when the libbt-hci lib completed stack postload process
+**
+** Returns None
+**
+******************************************************************************/
+static void postload_cb(TRANSAC transac, bt_hc_postload_result_t result)
+{
+ APPL_TRACE_EVENT1("HC postload_cb %d", result);
+}
+
+/******************************************************************************
+**
+** Function lpm_cb
+**
+** Description HOST/CONTROLLER LIB CALLBACK API - This function is called
+** back from the libbt-hci to indicate the current LPM state
+**
+** Returns None
+**
+******************************************************************************/
+static void lpm_cb(bt_hc_lpm_request_result_t result)
+{
+ APPL_TRACE_EVENT1("HC lpm_result_cb %d", result);
+ lpm_enabled = (result == BT_HC_LPM_ENABLED) ? TRUE : FALSE;
+}
+
+/******************************************************************************
+**
+** Function hostwake_ind
+**
+** Description HOST/CONTROLLER LIB CALLOUT API - This function is called
+** from the libbt-hci to indicate the HostWake event
+**
+** Returns None
+**
+******************************************************************************/
+static void hostwake_ind(bt_hc_low_power_event_t event)
+{
+ APPL_TRACE_EVENT1("HC hostwake_ind %d", event);
+}
+
+/******************************************************************************
+**
+** Function alloc
+**
+** Description HOST/CONTROLLER LIB CALLOUT API - This function is called
+** from the libbt-hci to request for data buffer allocation
+**
+** Returns NULL / pointer to allocated buffer
+**
+******************************************************************************/
+static char *alloc(int size)
+{
+ BT_HDR *p_hdr = NULL;
+
+ /*
+ APPL_TRACE_DEBUG1("HC alloc size=%d", size);
+ */
+
+ p_hdr = (BT_HDR *) GKI_getbuf ((UINT16) size);
+
+ if (p_hdr == NULL)
+ {
+ APPL_TRACE_WARNING0("alloc returns NO BUFFER!");
+ }
+
+ return ((char *) p_hdr);
+}
+
+/******************************************************************************
+**
+** Function dealloc
+**
+** Description HOST/CONTROLLER LIB CALLOUT API - This function is called
+** from the libbt-hci to release the data buffer allocated
+** through the alloc call earlier
+**
+** Bluedroid libbt-hci library uses 'transac' parameter to
+** pass data-path buffer/packet across bt_hci_lib interface
+** boundary. The 'p_buf' is not intended to be used here
+** but might point to data portion of data-path buffer.
+**
+** Returns bt_hc_status_t
+**
+******************************************************************************/
+static int dealloc(TRANSAC transac, char *p_buf)
+{
+ GKI_freebuf(transac);
+ return BT_HC_STATUS_SUCCESS;
+}
+
+/******************************************************************************
+**
+** Function data_ind
+**
+** Description HOST/CONTROLLER LIB CALLOUT API - This function is called
+** from the libbt-hci to pass in the received HCI packets
+**
+** The core stack is responsible for releasing the data buffer
+** passed in from the libbt-hci once the core stack has done
+** with it.
+**
+** Bluedroid libbt-hci library uses 'transac' parameter to
+** pass data-path buffer/packet across bt_hci_lib interface
+** boundary. The 'p_buf' and 'len' parameters are not intended
+** to be used here but might point to data portion in data-
+** path buffer and length of valid data respectively.
+**
+** Returns bt_hc_status_t
+**
+******************************************************************************/
+static int data_ind(TRANSAC transac, char *p_buf, int len)
+{
+ BT_HDR *p_msg = (BT_HDR *) transac;
+
+ /*
+ APPL_TRACE_DEBUG2("HC data_ind event=0x%04X (len=%d)", p_msg->event, len);
+ */
+
+ GKI_send_msg (BTU_TASK, BTU_HCI_RCV_MBOX, transac);
+ return BT_HC_STATUS_SUCCESS;
+}
+
+/******************************************************************************
+**
+** Function tx_result
+**
+** Description HOST/CONTROLLER LIB CALLBACK API - This function is called
+** from the libbt-hci once it has processed/sent the prior data
+** buffer which core stack passed to it through transmit_buf
+** call earlier.
+**
+** The core stack is responsible for releasing the data buffer
+** if it has been completedly processed.
+**
+** Bluedroid libbt-hci library uses 'transac' parameter to
+** pass data-path buffer/packet across bt_hci_lib interface
+** boundary. The 'p_buf' is not intended to be used here
+** but might point to data portion in data-path buffer.
+**
+** Returns bt_hc_status_t
+**
+******************************************************************************/
+static int tx_result(TRANSAC transac, char *p_buf, \
+ bt_hc_transmit_result_t result)
+{
+ /*
+ APPL_TRACE_DEBUG2("HC tx_result %d (event=%04X)", result, \
+ ((BT_HDR *)transac)->event);
+ */
+
+ if (result == BT_HC_TX_FRAGMENT)
+ {
+ GKI_send_msg (BTU_TASK, BTU_HCI_RCV_MBOX, transac);
+ }
+ else
+ {
+ GKI_freebuf(transac);
+ }
+
+ return BT_HC_STATUS_SUCCESS;
+}
+
+/*****************************************************************************
+** The libbt-hci Callback Functions Table
+*****************************************************************************/
+static const bt_hc_callbacks_t hc_callbacks = {
+ sizeof(bt_hc_callbacks_t),
+ preload_cb,
+ postload_cb,
+ lpm_cb,
+ hostwake_ind,
+ alloc,
+ dealloc,
+ data_ind,
+ tx_result
+};
+