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