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
46int 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
67int 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
82int 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*******************************************************************************/
109void 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*******************************************************************************/
141void 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