1/* 2 * Copyright 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17/****************************************************************************** 18 * 19 * Filename: hardware.c 20 * 21 * Description: Contains controller-specific functions, like 22 * firmware patch download 23 * low power mode operations 24 * 25 ******************************************************************************/ 26 27#define LOG_TAG "bt_vendor" 28 29#include <utils/Log.h> 30#include <sys/types.h> 31#include <sys/stat.h> 32#include <signal.h> 33#include <time.h> 34#include <errno.h> 35#include <fcntl.h> 36#include <dirent.h> 37#include <ctype.h> 38#include <cutils/properties.h> 39#include <stdlib.h> 40#include <string.h> 41#include "bt_hci_bdroid.h" 42#include "bt_vendor_qcom.h" 43 44#define MAX_CNT_RETRY 100 45 46int hw_config(int nState) 47{ 48 ALOGI("Starting hciattach daemon"); 49 char *szState[] = {"true", "false"}; 50 char *szReqSt = NULL; 51 52 if(nState == BT_VND_PWR_OFF) 53 szReqSt = szState[1]; 54 else 55 szReqSt = szState[0]; 56 57 ALOGI("try to set %s", szReqSt); 58 59 if (property_set("bluetooth.hciattach", szReqSt) < 0){ 60 ALOGE("Property Setting fail"); 61 return -1; 62 } 63 64 return 0; 65} 66 67int readTrpState() 68{ 69 char szBtStatus[PROPERTY_VALUE_MAX] = {0, }; 70 if(property_get("bluetooth.status", szBtStatus, "") < 0){ 71 ALOGE("Fail to get bluetooth satus"); 72 return FALSE; 73 } 74 75 if(!strncmp(szBtStatus, "on", strlen("on"))){ 76 ALOGI("bluetooth satus is on"); 77 return TRUE; 78 } 79 return FALSE; 80} 81 82int is_hw_ready() 83{ 84 int i=0; 85 char szStatus[10] = {0,}; 86 87 for(i=MAX_CNT_RETRY; i>0; i--){ 88 usleep(50*1000); 89 //TODO :: checking routine 90 if(readTrpState()==TRUE){ 91 break; 92 } 93 } 94 95 return (i==0)? FALSE:TRUE; 96} 97 98#if (HW_NEED_END_WITH_HCI_RESET == TRUE) 99/******************************************************************************* 100** 101** Function hw_epilog_cback 102** 103** Description Callback function for Command Complete Events from HCI 104** commands sent in epilog process. 105** 106** Returns None 107** 108*******************************************************************************/ 109void hw_epilog_cback(void *p_mem) 110{ 111 HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem; 112 char *p_name, *p_tmp; 113 uint8_t *p, status; 114 uint16_t opcode; 115 116 status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_RET_BYTE); 117 p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE; 118 STREAM_TO_UINT16(opcode,p); 119 120 ALOGI("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status); 121 122 if (bt_vendor_cbacks) 123 { 124 /* Must free the RX event buffer */ 125 bt_vendor_cbacks->dealloc(p_evt_buf); 126 127 /* Once epilog process is done, must call callback to notify caller */ 128 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS); 129 } 130} 131 132/******************************************************************************* 133** 134** Function hw_epilog_process 135** 136** Description Sample implementation of epilog process 137** 138** Returns None 139** 140*******************************************************************************/ 141void hw_epilog_process(void) 142{ 143 HC_BT_HDR *p_buf = NULL; 144 uint8_t *p; 145 146 ALOGI("hw_epilog_process"); 147 148 /* Sending a HCI_RESET */ 149 if (bt_vendor_cbacks) 150 { 151 /* Must allocate command buffer via HC's alloc API */ 152 p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \ 153 HCI_CMD_PREAMBLE_SIZE); 154 } 155 156 if (p_buf) 157 { 158 p_buf->event = MSG_STACK_TO_HC_HCI_CMD; 159 p_buf->offset = 0; 160 p_buf->layer_specific = 0; 161 p_buf->len = HCI_CMD_PREAMBLE_SIZE; 162 163 p = (uint8_t *) (p_buf + 1); 164 UINT16_TO_STREAM(p, HCI_RESET); 165 *p = 0; /* parameter length */ 166 167 /* Send command via HC's xmit_cb API */ 168 bt_vendor_cbacks->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback); 169 } 170 else 171 { 172 if (bt_vendor_cbacks) 173 { 174 ALOGE("vendor lib epilog process aborted [no buffer]"); 175 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_FAIL); 176 } 177 } 178} 179#endif // (HW_NEED_END_WITH_HCI_RESET == TRUE) 180