1 |
matthewc |
432 |
#include <unistd.h> |
2 |
|
|
#include <fcntl.h> |
3 |
|
|
#include <termios.h> |
4 |
|
|
#include "rdesktop.h" |
5 |
|
|
|
6 |
|
|
#define FILE_DEVICE_SERIAL_PORT 0x1b |
7 |
|
|
|
8 |
|
|
#define SERIAL_SET_BAUD_RATE 1 |
9 |
|
|
#define SERIAL_SET_QUEUE_SIZE 2 |
10 |
|
|
#define SERIAL_SET_LINE_CONTROL 3 |
11 |
|
|
#define SERIAL_SET_BREAK_ON 4 |
12 |
|
|
#define SERIAL_SET_BREAK_OFF 5 |
13 |
|
|
#define SERIAL_IMMEDIATE_CHAR 6 |
14 |
|
|
#define SERIAL_SET_TIMEOUTS 7 |
15 |
|
|
#define SERIAL_GET_TIMEOUTS 8 |
16 |
|
|
#define SERIAL_SET_DTR 9 |
17 |
|
|
#define SERIAL_CLR_DTR 10 |
18 |
|
|
#define SERIAL_RESET_DEVICE 11 |
19 |
|
|
#define SERIAL_SET_RTS 12 |
20 |
|
|
#define SERIAL_CLR_RTS 13 |
21 |
|
|
#define SERIAL_SET_XOFF 14 |
22 |
|
|
#define SERIAL_SET_XON 15 |
23 |
|
|
#define SERIAL_GET_WAIT_MASK 16 |
24 |
|
|
#define SERIAL_SET_WAIT_MASK 17 |
25 |
|
|
#define SERIAL_WAIT_ON_MASK 18 |
26 |
|
|
#define SERIAL_PURGE 19 |
27 |
|
|
#define SERIAL_GET_BAUD_RATE 20 |
28 |
|
|
#define SERIAL_GET_LINE_CONTROL 21 |
29 |
|
|
#define SERIAL_GET_CHARS 22 |
30 |
|
|
#define SERIAL_SET_CHARS 23 |
31 |
|
|
#define SERIAL_GET_HANDFLOW 24 |
32 |
|
|
#define SERIAL_SET_HANDFLOW 25 |
33 |
|
|
#define SERIAL_GET_MODEMSTATUS 26 |
34 |
|
|
#define SERIAL_GET_COMMSTATUS 27 |
35 |
|
|
#define SERIAL_XOFF_COUNTER 28 |
36 |
|
|
#define SERIAL_GET_PROPERTIES 29 |
37 |
|
|
#define SERIAL_GET_DTRRTS 30 |
38 |
|
|
#define SERIAL_LSRMST_INSERT 31 |
39 |
|
|
#define SERIAL_CONFIG_SIZE 32 |
40 |
|
|
#define SERIAL_GET_COMMCONFIG 33 |
41 |
|
|
#define SERIAL_SET_COMMCONFIG 34 |
42 |
|
|
#define SERIAL_GET_STATS 35 |
43 |
|
|
#define SERIAL_CLEAR_STATS 36 |
44 |
|
|
#define SERIAL_GET_MODEM_CONTROL 37 |
45 |
|
|
#define SERIAL_SET_MODEM_CONTROL 38 |
46 |
|
|
#define SERIAL_SET_FIFO_CONTROL 39 |
47 |
|
|
|
48 |
|
|
#define STOP_BITS_1 0 |
49 |
|
|
#define STOP_BITS_2 2 |
50 |
|
|
|
51 |
|
|
#define NO_PARITY 0 |
52 |
|
|
#define ODD_PARITY 1 |
53 |
|
|
#define EVEN_PARITY 2 |
54 |
|
|
|
55 |
|
|
int serial_fd; |
56 |
|
|
struct termios termios; |
57 |
|
|
|
58 |
|
|
int dtr; |
59 |
|
|
uint32 baud_rate; |
60 |
|
|
uint32 queue_in_size, queue_out_size; |
61 |
|
|
uint32 wait_mask; |
62 |
|
|
uint8 stop_bits, parity, word_length; |
63 |
|
|
|
64 |
|
|
static BOOL |
65 |
|
|
get_termios(void) |
66 |
|
|
{ |
67 |
|
|
speed_t speed; |
68 |
|
|
|
69 |
|
|
if (tcgetattr(serial_fd, &termios) == -1) |
70 |
|
|
return False; |
71 |
|
|
|
72 |
|
|
speed = cfgetispeed(&termios); |
73 |
|
|
switch (speed) |
74 |
|
|
{ |
75 |
|
|
case B75: baud_rate = 75; break; |
76 |
|
|
case B110: baud_rate = 110; break; |
77 |
|
|
case B134: baud_rate = 134; break; |
78 |
|
|
case B150: baud_rate = 150; break; |
79 |
|
|
case B300: baud_rate = 300; break; |
80 |
|
|
case B600: baud_rate = 600; break; |
81 |
|
|
case B1200: baud_rate = 1200; break; |
82 |
|
|
case B1800: baud_rate = 1800; break; |
83 |
|
|
case B2400: baud_rate = 2400; break; |
84 |
|
|
case B4800: baud_rate = 4800; break; |
85 |
|
|
case B9600: baud_rate = 9600; break; |
86 |
|
|
case B19200: baud_rate = 19200; break; |
87 |
|
|
case B38400: baud_rate = 38400; break; |
88 |
|
|
case B57600: baud_rate = 57600; break; |
89 |
|
|
case B115200: baud_rate = 115200; break; |
90 |
|
|
default: baud_rate = 0; break; |
91 |
|
|
} |
92 |
|
|
|
93 |
|
|
speed = cfgetospeed(&termios); |
94 |
|
|
dtr = (speed == B0) ? 0 : 1; |
95 |
|
|
|
96 |
|
|
stop_bits = (termios.c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
97 |
|
|
parity = (termios.c_cflag & PARENB) ? ((termios.c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
98 |
|
|
switch (termios.c_cflag & CSIZE) |
99 |
|
|
{ |
100 |
|
|
case CS5: word_length = 5; break; |
101 |
|
|
case CS6: word_length = 6; break; |
102 |
|
|
case CS7: word_length = 7; break; |
103 |
|
|
default: word_length = 8; break; |
104 |
|
|
} |
105 |
|
|
|
106 |
|
|
return True; |
107 |
|
|
} |
108 |
|
|
|
109 |
|
|
static void |
110 |
|
|
set_termios(void) |
111 |
|
|
{ |
112 |
|
|
speed_t speed; |
113 |
|
|
|
114 |
|
|
switch (baud_rate) |
115 |
|
|
{ |
116 |
|
|
case 75: speed = B75; break; |
117 |
|
|
case 110: speed = B110; break; |
118 |
|
|
case 134: speed = B134; break; |
119 |
|
|
case 150: speed = B150; break; |
120 |
|
|
case 300: speed = B300; break; |
121 |
|
|
case 600: speed = B600; break; |
122 |
|
|
case 1200: speed = B1200; break; |
123 |
|
|
case 1800: speed = B1800; break; |
124 |
|
|
case 2400: speed = B2400; break; |
125 |
|
|
case 4800: speed = B4800; break; |
126 |
|
|
case 9600: speed = B9600; break; |
127 |
|
|
case 19200: speed = B19200; break; |
128 |
|
|
case 38400: speed = B38400; break; |
129 |
|
|
case 57600: speed = B57600; break; |
130 |
|
|
case 115200: speed = B115200; break; |
131 |
|
|
default: speed = B0; break; |
132 |
|
|
} |
133 |
|
|
|
134 |
|
|
/* on systems with separate ispeed and ospeed, we can remember the speed |
135 |
|
|
in ispeed while changing DTR with ospeed */ |
136 |
|
|
cfsetispeed(&termios, speed); |
137 |
|
|
cfsetospeed(&termios, dtr ? speed : 0); |
138 |
|
|
|
139 |
|
|
termios.c_cflag &= ~(CSTOPB|PARENB|PARODD|CSIZE); |
140 |
|
|
switch (stop_bits) |
141 |
|
|
{ |
142 |
|
|
case STOP_BITS_2: |
143 |
|
|
termios.c_cflag |= CSTOPB; |
144 |
|
|
break; |
145 |
|
|
} |
146 |
|
|
switch (parity) |
147 |
|
|
{ |
148 |
|
|
case EVEN_PARITY: |
149 |
|
|
termios.c_cflag |= PARENB; |
150 |
|
|
break; |
151 |
|
|
case ODD_PARITY: |
152 |
|
|
termios.c_cflag |= PARENB|PARODD; |
153 |
|
|
break; |
154 |
|
|
} |
155 |
|
|
switch (word_length) |
156 |
|
|
{ |
157 |
|
|
case 5: termios.c_cflag |= CS5; break; |
158 |
|
|
case 6: termios.c_cflag |= CS6; break; |
159 |
|
|
case 7: termios.c_cflag |= CS7; break; |
160 |
|
|
default: termios.c_cflag |= CS8; break; |
161 |
|
|
} |
162 |
|
|
|
163 |
|
|
tcsetattr(serial_fd, TCSANOW, &termios); |
164 |
|
|
} |
165 |
|
|
|
166 |
|
|
static NTSTATUS |
167 |
|
|
serial_create(HANDLE *handle) |
168 |
|
|
{ |
169 |
|
|
/* XXX do we have to handle concurrent open attempts? */ |
170 |
|
|
serial_fd = open("/dev/ttyS0", O_RDWR); |
171 |
|
|
if (serial_fd == -1) |
172 |
|
|
return STATUS_ACCESS_DENIED; |
173 |
|
|
|
174 |
|
|
if (!get_termios()) |
175 |
|
|
return STATUS_ACCESS_DENIED; |
176 |
|
|
|
177 |
|
|
*handle = 0; |
178 |
|
|
return STATUS_SUCCESS; |
179 |
|
|
} |
180 |
|
|
|
181 |
|
|
static NTSTATUS |
182 |
|
|
serial_close(HANDLE handle) |
183 |
|
|
{ |
184 |
|
|
close(serial_fd); |
185 |
|
|
return STATUS_SUCCESS; |
186 |
|
|
} |
187 |
|
|
|
188 |
|
|
static NTSTATUS |
189 |
|
|
serial_read(HANDLE handle, uint8 *data, uint32 length, uint32 *result) |
190 |
|
|
{ |
191 |
|
|
*result = read(serial_fd, data, length); |
192 |
|
|
return STATUS_SUCCESS; |
193 |
|
|
} |
194 |
|
|
|
195 |
|
|
static NTSTATUS |
196 |
|
|
serial_write(HANDLE handle, uint8 *data, uint32 length, uint32 *result) |
197 |
|
|
{ |
198 |
|
|
*result = write(serial_fd, data, length); |
199 |
|
|
return STATUS_SUCCESS; |
200 |
|
|
} |
201 |
|
|
|
202 |
|
|
static NTSTATUS |
203 |
|
|
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
204 |
|
|
{ |
205 |
|
|
uint32 result; |
206 |
|
|
uint8 immediate; |
207 |
|
|
|
208 |
|
|
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
209 |
|
|
return STATUS_INVALID_PARAMETER; |
210 |
|
|
|
211 |
|
|
/* extract operation */ |
212 |
|
|
request >>= 2; |
213 |
|
|
request &= 0xfff; |
214 |
|
|
|
215 |
|
|
printf("SERIAL IOCTL %d\n", request); |
216 |
|
|
|
217 |
|
|
switch (request) |
218 |
|
|
{ |
219 |
|
|
case SERIAL_SET_BAUD_RATE: |
220 |
|
|
in_uint32_le(in, baud_rate); |
221 |
|
|
set_termios(); |
222 |
|
|
break; |
223 |
|
|
case SERIAL_GET_BAUD_RATE: |
224 |
|
|
out_uint32_le(out, baud_rate); |
225 |
|
|
break; |
226 |
|
|
case SERIAL_SET_QUEUE_SIZE: |
227 |
|
|
in_uint32_le(in, queue_in_size); |
228 |
|
|
in_uint32_le(in, queue_out_size); |
229 |
|
|
break; |
230 |
|
|
case SERIAL_SET_LINE_CONTROL: |
231 |
|
|
in_uint8(in, stop_bits); |
232 |
|
|
in_uint8(in, parity); |
233 |
|
|
in_uint8(in, word_length); |
234 |
|
|
set_termios(); |
235 |
|
|
break; |
236 |
|
|
case SERIAL_GET_LINE_CONTROL: |
237 |
|
|
out_uint8(out, stop_bits); |
238 |
|
|
out_uint8(out, parity); |
239 |
|
|
out_uint8(out, word_length); |
240 |
|
|
break; |
241 |
|
|
case SERIAL_IMMEDIATE_CHAR: |
242 |
|
|
in_uint8(in, immediate); |
243 |
|
|
serial_write(handle, &immediate, 1, &result); |
244 |
|
|
break; |
245 |
|
|
case SERIAL_CONFIG_SIZE: |
246 |
|
|
out_uint32_le(out, 0); |
247 |
|
|
break; |
248 |
|
|
case SERIAL_GET_CHARS: |
249 |
|
|
out_uint8s(out, 6); |
250 |
|
|
break; |
251 |
|
|
case SERIAL_SET_CHARS: |
252 |
|
|
in_uint8s(in, 6); |
253 |
|
|
break; |
254 |
|
|
case SERIAL_GET_HANDFLOW: |
255 |
|
|
out_uint32_le(out, 0); |
256 |
|
|
out_uint32_le(out, 3); /* Xon/Xoff */ |
257 |
|
|
out_uint32_le(out, 0); |
258 |
|
|
out_uint32_le(out, 0); |
259 |
|
|
break; |
260 |
|
|
case SERIAL_SET_HANDFLOW: |
261 |
|
|
in_uint8s(in, 16); |
262 |
|
|
break; |
263 |
|
|
case SERIAL_SET_TIMEOUTS: |
264 |
|
|
in_uint8s(in, 20); |
265 |
|
|
break; |
266 |
|
|
case SERIAL_GET_TIMEOUTS: |
267 |
|
|
out_uint8s(out, 20); |
268 |
|
|
break; |
269 |
|
|
case SERIAL_GET_WAIT_MASK: |
270 |
|
|
out_uint32(out, wait_mask); |
271 |
|
|
break; |
272 |
|
|
case SERIAL_SET_WAIT_MASK: |
273 |
|
|
in_uint32(in, wait_mask); |
274 |
|
|
break; |
275 |
|
|
case SERIAL_SET_DTR: |
276 |
|
|
dtr = 1; |
277 |
|
|
set_termios(); |
278 |
|
|
break; |
279 |
|
|
case SERIAL_CLR_DTR: |
280 |
|
|
dtr = 0; |
281 |
|
|
set_termios(); |
282 |
|
|
break; |
283 |
|
|
#if 0 |
284 |
|
|
case SERIAL_WAIT_ON_MASK: |
285 |
|
|
/* XXX implement me */ |
286 |
|
|
break; |
287 |
|
|
case SERIAL_SET_BREAK_ON: |
288 |
|
|
tcsendbreak(serial_fd, 0); |
289 |
|
|
break; |
290 |
|
|
case SERIAL_PURGE: |
291 |
|
|
in_uint32(purge_mask); |
292 |
|
|
/* tcflush */ |
293 |
|
|
break; |
294 |
|
|
case SERIAL_RESET_DEVICE: |
295 |
|
|
case SERIAL_SET_BREAK_OFF: |
296 |
|
|
case SERIAL_SET_RTS: |
297 |
|
|
case SERIAL_CLR_RTS: |
298 |
|
|
case SERIAL_SET_XOFF: |
299 |
|
|
case SERIAL_SET_XON: |
300 |
|
|
/* ignore */ |
301 |
|
|
break; |
302 |
|
|
#endif |
303 |
|
|
|
304 |
|
|
default: |
305 |
|
|
unimpl("SERIAL IOCTL %d\n", request); |
306 |
|
|
return STATUS_INVALID_PARAMETER; |
307 |
|
|
} |
308 |
|
|
|
309 |
|
|
return STATUS_SUCCESS; |
310 |
|
|
} |
311 |
|
|
|
312 |
|
|
DEVICE_FNS serial_fns = |
313 |
|
|
{ |
314 |
|
|
serial_create, |
315 |
|
|
serial_close, |
316 |
|
|
serial_read, |
317 |
|
|
serial_write, |
318 |
|
|
serial_device_control |
319 |
|
|
}; |
320 |
|
|
|