]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2014 Martin Ling <martin-libserialport@earth.li> | |
5 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Lesser General Public License as | |
9 | * published by the Free Software Foundation, either version 3 of the | |
10 | * License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include <string.h> | |
22 | #include <sys/types.h> | |
23 | #include <sys/stat.h> | |
24 | #include <fcntl.h> | |
25 | #include <unistd.h> | |
26 | #include <stdlib.h> | |
27 | #include <errno.h> | |
28 | #include <stdio.h> | |
29 | #include <stdarg.h> | |
30 | #ifdef _WIN32 | |
31 | #include <windows.h> | |
32 | #include <tchar.h> | |
33 | #include <setupapi.h> | |
34 | #include <cfgmgr32.h> | |
35 | #include <usbioctl.h> | |
36 | #else | |
37 | #include <limits.h> | |
38 | #include <termios.h> | |
39 | #include <sys/ioctl.h> | |
40 | #include <sys/time.h> | |
41 | #include <limits.h> | |
42 | #include <poll.h> | |
43 | #endif | |
44 | #ifdef __APPLE__ | |
45 | #include <CoreFoundation/CoreFoundation.h> | |
46 | #include <IOKit/IOKitLib.h> | |
47 | #include <IOKit/serial/IOSerialKeys.h> | |
48 | #include <IOKit/serial/ioss.h> | |
49 | #include <sys/syslimits.h> | |
50 | #endif | |
51 | #ifdef __linux__ | |
52 | #include <dirent.h> | |
53 | #ifndef __ANDROID__ | |
54 | #include "linux/serial.h" | |
55 | #endif | |
56 | #include "linux_termios.h" | |
57 | ||
58 | /* TCGETX/TCSETX is not available everywhere. */ | |
59 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) | |
60 | #define USE_TERMIOX | |
61 | #endif | |
62 | #endif | |
63 | ||
64 | /* TIOCINQ/TIOCOUTQ is not available everywhere. */ | |
65 | #if !defined(TIOCINQ) && defined(FIONREAD) | |
66 | #define TIOCINQ FIONREAD | |
67 | #endif | |
68 | #if !defined(TIOCOUTQ) && defined(FIONWRITE) | |
69 | #define TIOCOUTQ FIONWRITE | |
70 | #endif | |
71 | ||
72 | /* Non-standard baudrates are not available everywhere. */ | |
73 | #if defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED) | |
74 | #define USE_TERMIOS_SPEED | |
75 | #endif | |
76 | ||
77 | struct sp_port { | |
78 | char *name; | |
79 | char *description; | |
80 | enum sp_transport transport; | |
81 | int usb_bus; | |
82 | int usb_address; | |
83 | int usb_vid; | |
84 | int usb_pid; | |
85 | char *usb_manufacturer; | |
86 | char *usb_product; | |
87 | char *usb_serial; | |
88 | char *bluetooth_address; | |
89 | #ifdef _WIN32 | |
90 | char *usb_path; | |
91 | HANDLE hdl; | |
92 | COMMTIMEOUTS timeouts; | |
93 | OVERLAPPED write_ovl; | |
94 | OVERLAPPED read_ovl; | |
95 | OVERLAPPED wait_ovl; | |
96 | DWORD events; | |
97 | BYTE pending_byte; | |
98 | BOOL writing; | |
99 | #else | |
100 | int fd; | |
101 | #endif | |
102 | }; | |
103 | ||
104 | struct sp_port_config { | |
105 | int baudrate; | |
106 | int bits; | |
107 | enum sp_parity parity; | |
108 | int stopbits; | |
109 | enum sp_rts rts; | |
110 | enum sp_cts cts; | |
111 | enum sp_dtr dtr; | |
112 | enum sp_dsr dsr; | |
113 | enum sp_xonxoff xon_xoff; | |
114 | }; | |
115 | ||
116 | struct port_data { | |
117 | #ifdef _WIN32 | |
118 | DCB dcb; | |
119 | #else | |
120 | struct termios term; | |
121 | int controlbits; | |
122 | int termiox_supported; | |
123 | int rts_flow; | |
124 | int cts_flow; | |
125 | int dtr_flow; | |
126 | int dsr_flow; | |
127 | #endif | |
128 | }; | |
129 | ||
130 | #ifdef _WIN32 | |
131 | typedef HANDLE event_handle; | |
132 | #else | |
133 | typedef int event_handle; | |
134 | #endif | |
135 | ||
136 | /* Standard baud rates. */ | |
137 | #ifdef _WIN32 | |
138 | #define BAUD_TYPE DWORD | |
139 | #define BAUD(n) {CBR_##n, n} | |
140 | #else | |
141 | #define BAUD_TYPE speed_t | |
142 | #define BAUD(n) {B##n, n} | |
143 | #endif | |
144 | ||
145 | struct std_baudrate { | |
146 | BAUD_TYPE index; | |
147 | int value; | |
148 | }; | |
149 | ||
150 | extern const struct std_baudrate std_baudrates[]; | |
151 | ||
152 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
153 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
154 | ||
155 | extern void (*sp_debug_handler)(const char *format, ...); | |
156 | ||
157 | /* Debug output macros. */ | |
158 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
159 | #define DEBUG_ERROR(err, fmt, ...) DEBUG("%s returning " #err ": " fmt, __func__, ##__VA_ARGS__) | |
160 | #define DEBUG_FAIL(fmt, ...) do { \ | |
161 | char *errmsg = sp_last_error_message(); \ | |
162 | DEBUG("%s returning SP_ERR_FAIL: "fmt": %s", __func__,##__VA_ARGS__,errmsg); \ | |
163 | sp_free_error_message(errmsg); \ | |
164 | } while (0); | |
165 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
166 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
167 | #define RETURN_CODEVAL(x) do { \ | |
168 | switch (x) { \ | |
169 | case SP_OK: RETURN_CODE(SP_OK); \ | |
170 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
171 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
172 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
173 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
174 | } \ | |
175 | } while (0) | |
176 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
177 | #define RETURN_ERROR(err, ...) do { DEBUG_ERROR(err, __VA_ARGS__); return err; } while (0) | |
178 | #define RETURN_FAIL(...) do { DEBUG_FAIL(__VA_ARGS__); return SP_ERR_FAIL; } while (0) | |
179 | #define RETURN_VALUE(fmt, x) do { \ | |
180 | typeof(x) _x = x; \ | |
181 | DEBUG("%s returning " fmt, __func__, _x); \ | |
182 | return _x; \ | |
183 | } while (0) | |
184 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) | |
185 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0) | |
186 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) | |
187 | ||
188 | #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0) | |
189 | ||
190 | SP_PRIV struct sp_port **list_append(struct sp_port **list, const char *portname); | |
191 | ||
192 | /* OS-specific Helper functions. */ | |
193 | SP_PRIV enum sp_return get_port_details(struct sp_port *port); | |
194 | SP_PRIV enum sp_return list_ports(struct sp_port ***list); |