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/*
* Copyright 2012 The Android Open Source Project
*
* 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: hardware.c
*
* Description: Contains controller-specific functions, like
* firmware patch download
* low power mode operations
*
******************************************************************************/
#define LOG_TAG "bt_hwcfg"
#include <utils/Log.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <ctype.h>
#include <cutils/properties.h>
#include <stdlib.h>
#include "bt_hci_bdroid.h"
#include "bt_vendor_qcom.h"
#define MAX_CNT_RETRY 100
int hw_config(int nState)
{
ALOGI("Starting hciattach daemon");
char *szState[] = {"true", "false"};
char *szReqSt = NULL;
if(nState == BT_VND_PWR_OFF)
szReqSt = szState[1];
else
szReqSt = szState[0];
ALOGI("try to set %s", szReqSt);
if (property_set("bluetooth.hciattach", szReqSt) < 0){
ALOGE("Property Setting fail");
return -1;
}
return 0;
}
int readTrpState()
{
char szBtStatus[PROPERTY_VALUE_MAX] = {0, };
if(property_get("bluetooth.status", szBtStatus, "") < 0){
ALOGE("Fail to get bluetooth satus");
return FALSE;
}
if(!strncmp(szBtStatus, "on", strlen("on"))){
ALOGI("bluetooth satus is on");
return TRUE;
}
return FALSE;
}
int is_hw_ready()
{
int i=0;
char szStatus[10] = {0,};
for(i=MAX_CNT_RETRY; i>0; i--){
usleep(50*1000);
//TODO :: checking routine
if(readTrpState()==TRUE){
break;
}
}
return (i==0)? FALSE:TRUE;
}
#if (HW_NEED_END_WITH_HCI_RESET == TRUE)
/*******************************************************************************
**
** Function hw_epilog_cback
**
** Description Callback function for Command Complete Events from HCI
** commands sent in epilog process.
**
** Returns None
**
*******************************************************************************/
void hw_epilog_cback(void *p_mem)
{
HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem;
char *p_name, *p_tmp;
uint8_t *p, status;
uint16_t opcode;
status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_RET_BYTE);
p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE;
STREAM_TO_UINT16(opcode,p);
ALOGI("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status);
if (bt_vendor_cbacks)
{
/* Must free the RX event buffer */
bt_vendor_cbacks->dealloc(p_evt_buf);
/* Once epilog process is done, must call callback to notify caller */
bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
}
}
/*******************************************************************************
**
** Function hw_epilog_process
**
** Description Sample implementation of epilog process
**
** Returns None
**
*******************************************************************************/
void hw_epilog_process(void)
{
HC_BT_HDR *p_buf = NULL;
uint8_t *p;
ALOGI("hw_epilog_process");
/* Sending a HCI_RESET */
if (bt_vendor_cbacks)
{
/* Must allocate command buffer via HC's alloc API */
p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \
HCI_CMD_PREAMBLE_SIZE);
}
if (p_buf)
{
p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
p_buf->offset = 0;
p_buf->layer_specific = 0;
p_buf->len = HCI_CMD_PREAMBLE_SIZE;
p = (uint8_t *) (p_buf + 1);
UINT16_TO_STREAM(p, HCI_RESET);
*p = 0; /* parameter length */
/* Send command via HC's xmit_cb API */
bt_vendor_cbacks->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback);
}
else
{
if (bt_vendor_cbacks)
{
ALOGE("vendor lib epilog process aborted [no buffer]");
bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_FAIL);
}
}
}
#endif // (HW_NEED_END_WITH_HCI_RESET == TRUE)
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