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