1 /*
2 *
3 * BlueZ - Bluetooth protocol stack for Linux
4 *
5 * Copyright (C) 2001-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27
28 #include <stdio.h>
29 #include <errno.h>
30 #include <fcntl.h>
31 #include <unistd.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <termios.h>
35 #include <sys/ioctl.h>
36 #include <sys/socket.h>
37
38 #include <bluetooth/bluetooth.h>
39 #include <bluetooth/rfcomm.h>
40
at_command(int fd,char * cmd,int to)41 static int at_command(int fd, char *cmd, int to)
42 {
43 fd_set rfds;
44 struct timeval timeout;
45 char buf[1024];
46 int sel, len, i, n;
47
48 len = write(fd, cmd, strlen(cmd));
49
50 for (i = 0; i < 100; i++) {
51
52 FD_ZERO(&rfds);
53 FD_SET(fd, &rfds);
54
55 timeout.tv_sec = 0;
56 timeout.tv_usec = to;
57
58 if ((sel = select(fd + 1, &rfds, NULL, NULL, &timeout)) > 0) {
59
60 if (FD_ISSET(fd, &rfds)) {
61 memset(buf, 0, sizeof(buf));
62 len = read(fd, buf, sizeof(buf));
63 for (n = 0; n < len; n++)
64 printf("%c", buf[n]);
65 if (strstr(buf, "\r\nOK") != NULL)
66 break;
67 if (strstr(buf, "\r\nERROR") != NULL)
68 break;
69 if (strstr(buf, "\r\nCONNECT") != NULL)
70 break;
71 }
72
73 }
74
75 }
76
77 return 0;
78 }
79
open_device(char * device)80 static int open_device(char *device)
81 {
82 struct termios ti;
83 int fd;
84
85 fd = open(device, O_RDWR | O_NOCTTY | O_NONBLOCK);
86 if (fd < 0) {
87 fprintf(stderr, "Can't open serial port: %s (%d)\n",
88 strerror(errno), errno);
89 return -1;
90 }
91
92 tcflush(fd, TCIOFLUSH);
93
94 /* Switch tty to RAW mode */
95 cfmakeraw(&ti);
96 tcsetattr(fd, TCSANOW, &ti);
97
98 return fd;
99 }
100
open_socket(bdaddr_t * bdaddr,uint8_t channel)101 static int open_socket(bdaddr_t *bdaddr, uint8_t channel)
102 {
103 struct sockaddr_rc addr;
104 int sk;
105
106 sk = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
107 if (sk < 0) {
108 fprintf(stderr, "Can't create socket: %s (%d)\n",
109 strerror(errno), errno);
110 return -1;
111 }
112
113 memset(&addr, 0, sizeof(addr));
114 addr.rc_family = AF_BLUETOOTH;
115 bacpy(&addr.rc_bdaddr, BDADDR_ANY);
116
117 if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
118 fprintf(stderr, "Can't bind socket: %s (%d)\n",
119 strerror(errno), errno);
120 close(sk);
121 return -1;
122 }
123
124 memset(&addr, 0, sizeof(addr));
125 addr.rc_family = AF_BLUETOOTH;
126 bacpy(&addr.rc_bdaddr, bdaddr);
127 addr.rc_channel = channel;
128
129 if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
130 fprintf(stderr, "Can't connect: %s (%d)\n",
131 strerror(errno), errno);
132 close(sk);
133 return -1;
134 }
135
136 return sk;
137 }
138
usage(void)139 static void usage(void)
140 {
141 printf("Usage:\n\tattest <device> | <bdaddr> [channel]\n");
142 }
143
main(int argc,char * argv[])144 int main(int argc, char *argv[])
145 {
146 int fd;
147
148 bdaddr_t bdaddr;
149 uint8_t channel;
150
151 switch (argc) {
152 case 2:
153 str2ba(argv[1], &bdaddr);
154 channel = 1;
155 break;
156 case 3:
157 str2ba(argv[1], &bdaddr);
158 channel = atoi(argv[2]);
159 break;
160 default:
161 usage();
162 exit(-1);
163 }
164
165 if (bacmp(BDADDR_ANY, &bdaddr)) {
166 printf("Connecting to %s on channel %d\n", argv[1], channel);
167 fd = open_socket(&bdaddr, channel);
168 } else {
169 printf("Opening device %s\n", argv[1]);
170 fd = open_device(argv[1]);
171 }
172
173 if (fd < 0)
174 exit(-2);
175
176 at_command(fd, "ATZ\r\n", 10000);
177 at_command(fd, "AT+CPBS=\"ME\"\r\n", 10000);
178 at_command(fd, "AT+CPBR=1,100\r\n", 100000);
179
180 close(fd);
181
182 return 0;
183 }
184