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
hw_config(int nState)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( !(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
readTrpState()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
is_hw_ready()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 *******************************************************************************/
hw_epilog_cback(void * p_mem)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 #ifdef BT_THREADLOCK_SAFE
136 pthread_mutex_lock(&q_lock);
137 #endif
138 if (!q) {
139 ALOGE("hw_epilog_cback called with NULL context");
140 goto out;
141 }
142 /* Must free the RX event buffer */
143 q->cb->dealloc(p_evt_buf);
144
145 /* Once epilog process is done, must call callback to notify caller */
146 q->cb->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
147 out:
148 #ifdef BT_THREADLOCK_SAFE
149 pthread_mutex_unlock(&q_lock);
150 #endif
151 return;
152 }
153
154 /*******************************************************************************
155 **
156 ** Function hw_epilog_process
157 **
158 ** Description Sample implementation of epilog process. This process is
159 ** called with q_lock held and q->cb is assumed to be valid.
160 **
161 ** Returns None
162 **
163 *******************************************************************************/
__hw_epilog_process(void)164 void __hw_epilog_process(void)
165 {
166 HC_BT_HDR *p_buf = NULL;
167 uint8_t *p;
168
169 ALOGI("hw_epilog_process");
170
171 /* Sending a HCI_RESET */
172 /* Must allocate command buffer via HC's alloc API */
173 p_buf = (HC_BT_HDR *) q->cb->alloc(BT_HC_HDR_SIZE + HCI_CMD_PREAMBLE_SIZE);
174 if (p_buf)
175 {
176 p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
177 p_buf->offset = 0;
178 p_buf->layer_specific = 0;
179 p_buf->len = HCI_CMD_PREAMBLE_SIZE;
180
181 p = (uint8_t *) (p_buf + 1);
182 UINT16_TO_STREAM(p, HCI_RESET);
183 *p = 0; /* parameter length */
184
185 /* Send command via HC's xmit_cb API */
186 q->cb->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback);
187 }
188 else
189 {
190 ALOGE("vendor lib epilog process aborted [no buffer]");
191 q->cb->epilog_cb(BT_VND_OP_RESULT_FAIL);
192 }
193 }
194 #endif // (HW_NEED_END_WITH_HCI_RESET == TRUE)
195