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 "bt_hci_bdroid.h" 41 #include "bt_vendor_qcom.h" 42 #include <string.h> 43 #define MAX_CNT_RETRY 100 44 45 int hw_config(int nState) 46 { 47 char *szState[] = {"true", "false"}; 48 char *szReqSt = NULL; 49 char szBtSocStatus[PROPERTY_VALUE_MAX] = {'\0', }; 50 51 if(nState == BT_VND_PWR_OFF) 52 szReqSt = szState[1]; 53 else 54 szReqSt = szState[0]; 55 56 if((property_get("bluetooth.status", szBtSocStatus, "") <= 0)) 57 { 58 if(nState == BT_VND_PWR_ON ) { 59 ALOGW("Hw_config: First Time BT on after boot.Starting hciattach daemon BTStatus=%s",szBtSocStatus); 60 if (property_set("bluetooth.hciattach", szReqSt) < 0) 61 { 62 ALOGE("Hw_config: Property Setting fail"); 63 return -1; 64 } 65 } 66 } else if(nState == BT_VND_PWR_ON && !(strncmp(szBtSocStatus, "on", strlen("on")))) { 67 //BTSOC is already on 68 ALOGW("Hw_config: nState = %d", nState); 69 } else { 70 ALOGW("Hw_config: trigerring hciattach"); 71 if (property_set("bluetooth.hciattach", szReqSt) < 0) 72 { 73 ALOGE("Hw_config: Property Setting fail"); 74 return -1; 75 } 76 } 77 78 return 0; 79 } 80 81 int readTrpState() 82 { 83 char szBtStatus[PROPERTY_VALUE_MAX] = {0, }; 84 if(property_get("bluetooth.status", szBtStatus, "") < 0){ 85 ALOGE("Fail to get bluetooth status"); 86 return FALSE; 87 } 88 89 if(!strncmp(szBtStatus, "on", strlen("on"))){ 90 ALOGI("bluetooth status is on"); 91 return TRUE; 92 } 93 return FALSE; 94 } 95 96 int is_hw_ready() 97 { 98 int i=0; 99 char szStatus[10] = {0,}; 100 101 for(i=MAX_CNT_RETRY; i>0; i--){ 102 //TODO :: checking routine 103 if(readTrpState()==TRUE){ 104 break; 105 } 106 usleep(50*1000); 107 } 108 return (i==0)? FALSE:TRUE; 109 } 110 111 #if (HW_NEED_END_WITH_HCI_RESET == TRUE) 112 /******************************************************************************* 113 ** 114 ** Function hw_epilog_cback 115 ** 116 ** Description Callback function for Command Complete Events from HCI 117 ** commands sent in epilog process. 118 ** 119 ** Returns None 120 ** 121 *******************************************************************************/ 122 void hw_epilog_cback(void *p_mem) 123 { 124 HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem; 125 char *p_name, *p_tmp; 126 uint8_t *p, status; 127 uint16_t opcode; 128 129 status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_RET_BYTE); 130 p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE; 131 STREAM_TO_UINT16(opcode,p); 132 133 ALOGI("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status); 134 135 if (bt_vendor_cbacks) 136 { 137 /* Must free the RX event buffer */ 138 bt_vendor_cbacks->dealloc(p_evt_buf); 139 140 /* Once epilog process is done, must call callback to notify caller */ 141 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS); 142 } 143 } 144 145 /******************************************************************************* 146 ** 147 ** Function hw_epilog_process 148 ** 149 ** Description Sample implementation of epilog process 150 ** 151 ** Returns None 152 ** 153 *******************************************************************************/ 154 void hw_epilog_process(void) 155 { 156 HC_BT_HDR *p_buf = NULL; 157 uint8_t *p; 158 159 ALOGI("hw_epilog_process"); 160 161 /* Sending a HCI_RESET */ 162 if (bt_vendor_cbacks) 163 { 164 /* Must allocate command buffer via HC's alloc API */ 165 p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \ 166 HCI_CMD_PREAMBLE_SIZE); 167 } 168 169 if (p_buf) 170 { 171 p_buf->event = MSG_STACK_TO_HC_HCI_CMD; 172 p_buf->offset = 0; 173 p_buf->layer_specific = 0; 174 p_buf->len = HCI_CMD_PREAMBLE_SIZE; 175 176 p = (uint8_t *) (p_buf + 1); 177 UINT16_TO_STREAM(p, HCI_RESET); 178 *p = 0; /* parameter length */ 179 180 /* Send command via HC's xmit_cb API */ 181 bt_vendor_cbacks->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback); 182 } 183 else 184 { 185 if (bt_vendor_cbacks) 186 { 187 ALOGE("vendor lib epilog process aborted [no buffer]"); 188 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_FAIL); 189 } 190 } 191 } 192 #endif // (HW_NEED_END_WITH_HCI_RESET == TRUE) 193
