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