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 <log/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 <unistd.h>
41 #include "bt_hci_bdroid.h"
42 #include "bt_vendor_qcom.h"
43 #include <string.h>
44 #define MAX_CNT_RETRY 100
45
hw_config(int nState)46 int hw_config(int nState)
47 {
48 char *szState[] = {"true", "false"};
49 char *szReqSt = NULL;
50 char szBtSocStatus[PROPERTY_VALUE_MAX] = {'\0', };
51
52 if(nState == BT_VND_PWR_OFF)
53 szReqSt = szState[1];
54 else
55 szReqSt = szState[0];
56
57 if((property_get("bluetooth.status", szBtSocStatus, "") <= 0))
58 {
59 if(nState == BT_VND_PWR_ON ) {
60 ALOGW("Hw_config: First Time BT on after boot.Starting hciattach daemon BTStatus=%s",szBtSocStatus);
61 if (property_set("bluetooth.hciattach", szReqSt) < 0)
62 {
63 ALOGE("Hw_config: Property Setting fail");
64 return -1;
65 }
66 }
67 } else if( !(strncmp(szBtSocStatus, "on", strlen("on")))) {
68 //BTSOC is already on
69 ALOGW("Hw_config: nState = %d", nState);
70 } else {
71 ALOGW("Hw_config: trigerring hciattach");
72 if (property_set("bluetooth.hciattach", szReqSt) < 0)
73 {
74 ALOGE("Hw_config: Property Setting fail");
75 return -1;
76 }
77 }
78
79 return 0;
80 }
81
readTrpState()82 int readTrpState()
83 {
84 char szBtStatus[PROPERTY_VALUE_MAX] = {0, };
85 if(property_get("bluetooth.status", szBtStatus, "") < 0){
86 ALOGE("Fail to get bluetooth status");
87 return FALSE;
88 }
89
90 if(!strncmp(szBtStatus, "on", strlen("on"))){
91 ALOGI("bluetooth status is on");
92 return TRUE;
93 }
94 return FALSE;
95 }
96
is_hw_ready()97 int is_hw_ready()
98 {
99 int i=0;
100 char szStatus[10] = {0,};
101
102 for(i=MAX_CNT_RETRY; i>0; i--){
103 //TODO :: checking routine
104 if(readTrpState()==TRUE){
105 break;
106 }
107 usleep(50*1000);
108 }
109 return (i==0)? FALSE:TRUE;
110 }
111
112 #if (HW_NEED_END_WITH_HCI_RESET == TRUE)
113 /*******************************************************************************
114 **
115 ** Function hw_epilog_cback
116 **
117 ** Description Callback function for Command Complete Events from HCI
118 ** commands sent in epilog process.
119 **
120 ** Returns None
121 **
122 *******************************************************************************/
hw_epilog_cback(void * p_mem)123 void hw_epilog_cback(void *p_mem)
124 {
125 HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem;
126 char *p_name, *p_tmp;
127 uint8_t *p, status;
128 uint16_t opcode;
129
130 status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_RET_BYTE);
131 p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE;
132 STREAM_TO_UINT16(opcode,p);
133
134 ALOGI("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status);
135
136 #ifdef BT_THREADLOCK_SAFE
137 pthread_mutex_lock(&q_lock);
138 #endif
139 if (!q) {
140 ALOGE("hw_epilog_cback called with NULL context");
141 goto out;
142 }
143 /* Must free the RX event buffer */
144 q->cb->dealloc(p_evt_buf);
145
146 /* Once epilog process is done, must call callback to notify caller */
147 q->cb->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
148 out:
149 #ifdef BT_THREADLOCK_SAFE
150 pthread_mutex_unlock(&q_lock);
151 #endif
152 return;
153 }
154
155 /*******************************************************************************
156 **
157 ** Function hw_epilog_process
158 **
159 ** Description Sample implementation of epilog process. This process is
160 ** called with q_lock held and q->cb is assumed to be valid.
161 **
162 ** Returns None
163 **
164 *******************************************************************************/
__hw_epilog_process(void)165 void __hw_epilog_process(void)
166 {
167 HC_BT_HDR *p_buf = NULL;
168 uint8_t *p;
169
170 ALOGI("hw_epilog_process");
171
172 /* Sending a HCI_RESET */
173 /* Must allocate command buffer via HC's alloc API */
174 p_buf = (HC_BT_HDR *) q->cb->alloc(BT_HC_HDR_SIZE + HCI_CMD_PREAMBLE_SIZE);
175 if (p_buf)
176 {
177 p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
178 p_buf->offset = 0;
179 p_buf->layer_specific = 0;
180 p_buf->len = HCI_CMD_PREAMBLE_SIZE;
181
182 p = (uint8_t *) (p_buf + 1);
183 UINT16_TO_STREAM(p, HCI_RESET);
184 *p = 0; /* parameter length */
185
186 /* Send command via HC's xmit_cb API */
187 q->cb->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback);
188 }
189 else
190 {
191 ALOGE("vendor lib epilog process aborted [no buffer]");
192 q->cb->epilog_cb(BT_VND_OP_RESULT_FAIL);
193 }
194 }
195 #endif // (HW_NEED_END_WITH_HCI_RESET == TRUE)
196