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 #include <string.h> 44 #define MAX_CNT_RETRY 100 45 46 int hw_config(int nState) 47 { 48 char *szState[] = {"true", "false"}; 49 char *szReqSt = NULL; 50 char szBtSocStatus[PROPERTY_VALUE_MAX] = {'\0', }; 51 52 if(nState == BT_VND_PWR_OFF) 53 szReqSt = szState[1]; 54 else 55 szReqSt = szState[0]; 56 57 if((property_get("bluetooth.status", szBtSocStatus, "") <= 0)) 58 { 59 if(nState == BT_VND_PWR_ON ) { 60 ALOGW("Hw_config: First Time BT on after boot.Starting hciattach daemon BTStatus=%s",szBtSocStatus); 61 if (property_set("bluetooth.hciattach", szReqSt) < 0) 62 { 63 ALOGE("Hw_config: Property Setting fail"); 64 return -1; 65 } 66 } 67 } else if( !(strncmp(szBtSocStatus, "on", strlen("on")))) { 68 //BTSOC is already on 69 ALOGW("Hw_config: nState = %d", nState); 70 } else { 71 ALOGW("Hw_config: trigerring hciattach"); 72 if (property_set("bluetooth.hciattach", szReqSt) < 0) 73 { 74 ALOGE("Hw_config: Property Setting fail"); 75 return -1; 76 } 77 } 78 79 return 0; 80 } 81 82 int readTrpState() 83 { 84 char szBtStatus[PROPERTY_VALUE_MAX] = {0, }; 85 if(property_get("bluetooth.status", szBtStatus, "") < 0){ 86 ALOGE("Fail to get bluetooth status"); 87 return FALSE; 88 } 89 90 if(!strncmp(szBtStatus, "on", strlen("on"))){ 91 ALOGI("bluetooth status is on"); 92 return TRUE; 93 } 94 return FALSE; 95 } 96 97 int is_hw_ready() 98 { 99 int i=0; 100 char szStatus[10] = {0,}; 101 102 for(i=MAX_CNT_RETRY; i>0; i--){ 103 //TODO :: checking routine 104 if(readTrpState()==TRUE){ 105 break; 106 } 107 usleep(50*1000); 108 } 109 return (i==0)? FALSE:TRUE; 110 } 111 112 #if (HW_NEED_END_WITH_HCI_RESET == TRUE) 113 /******************************************************************************* 114 ** 115 ** Function hw_epilog_cback 116 ** 117 ** Description Callback function for Command Complete Events from HCI 118 ** commands sent in epilog process. 119 ** 120 ** Returns None 121 ** 122 *******************************************************************************/ 123 void hw_epilog_cback(void *p_mem) 124 { 125 HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem; 126 char *p_name, *p_tmp; 127 uint8_t *p, status; 128 uint16_t opcode; 129 130 status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_RET_BYTE); 131 p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE; 132 STREAM_TO_UINT16(opcode,p); 133 134 ALOGI("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status); 135 136 if (bt_vendor_cbacks) 137 { 138 /* Must free the RX event buffer */ 139 bt_vendor_cbacks->dealloc(p_evt_buf); 140 141 /* Once epilog process is done, must call callback to notify caller */ 142 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS); 143 } 144 } 145 146 /******************************************************************************* 147 ** 148 ** Function hw_epilog_process 149 ** 150 ** Description Sample implementation of epilog process 151 ** 152 ** Returns None 153 ** 154 *******************************************************************************/ 155 void hw_epilog_process(void) 156 { 157 HC_BT_HDR *p_buf = NULL; 158 uint8_t *p; 159 160 ALOGI("hw_epilog_process"); 161 162 /* Sending a HCI_RESET */ 163 if (bt_vendor_cbacks) 164 { 165 /* Must allocate command buffer via HC's alloc API */ 166 p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \ 167 HCI_CMD_PREAMBLE_SIZE); 168 } 169 170 if (p_buf) 171 { 172 p_buf->event = MSG_STACK_TO_HC_HCI_CMD; 173 p_buf->offset = 0; 174 p_buf->layer_specific = 0; 175 p_buf->len = HCI_CMD_PREAMBLE_SIZE; 176 177 p = (uint8_t *) (p_buf + 1); 178 UINT16_TO_STREAM(p, HCI_RESET); 179 *p = 0; /* parameter length */ 180 181 /* Send command via HC's xmit_cb API */ 182 bt_vendor_cbacks->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback); 183 } 184 else 185 { 186 if (bt_vendor_cbacks) 187 { 188 ALOGE("vendor lib epilog process aborted [no buffer]"); 189 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_FAIL); 190 } 191 } 192 } 193 #endif // (HW_NEED_END_WITH_HCI_RESET == TRUE) 194
