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