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 |
astrand |
435 |
case B75: |
76 |
|
|
baud_rate = 75; |
77 |
|
|
break; |
78 |
|
|
case B110: |
79 |
|
|
baud_rate = 110; |
80 |
|
|
break; |
81 |
|
|
case B134: |
82 |
|
|
baud_rate = 134; |
83 |
|
|
break; |
84 |
|
|
case B150: |
85 |
|
|
baud_rate = 150; |
86 |
|
|
break; |
87 |
|
|
case B300: |
88 |
|
|
baud_rate = 300; |
89 |
|
|
break; |
90 |
|
|
case B600: |
91 |
|
|
baud_rate = 600; |
92 |
|
|
break; |
93 |
|
|
case B1200: |
94 |
|
|
baud_rate = 1200; |
95 |
|
|
break; |
96 |
|
|
case B1800: |
97 |
|
|
baud_rate = 1800; |
98 |
|
|
break; |
99 |
|
|
case B2400: |
100 |
|
|
baud_rate = 2400; |
101 |
|
|
break; |
102 |
|
|
case B4800: |
103 |
|
|
baud_rate = 4800; |
104 |
|
|
break; |
105 |
|
|
case B9600: |
106 |
|
|
baud_rate = 9600; |
107 |
|
|
break; |
108 |
|
|
case B19200: |
109 |
|
|
baud_rate = 19200; |
110 |
|
|
break; |
111 |
|
|
case B38400: |
112 |
|
|
baud_rate = 38400; |
113 |
|
|
break; |
114 |
|
|
case B57600: |
115 |
|
|
baud_rate = 57600; |
116 |
|
|
break; |
117 |
|
|
case B115200: |
118 |
|
|
baud_rate = 115200; |
119 |
|
|
break; |
120 |
|
|
default: |
121 |
|
|
baud_rate = 0; |
122 |
|
|
break; |
123 |
matthewc |
432 |
} |
124 |
|
|
|
125 |
|
|
speed = cfgetospeed(&termios); |
126 |
|
|
dtr = (speed == B0) ? 0 : 1; |
127 |
|
|
|
128 |
|
|
stop_bits = (termios.c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
129 |
astrand |
435 |
parity = (termios. |
130 |
|
|
c_cflag & PARENB) ? ((termios. |
131 |
|
|
c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
132 |
matthewc |
432 |
switch (termios.c_cflag & CSIZE) |
133 |
|
|
{ |
134 |
astrand |
435 |
case CS5: |
135 |
|
|
word_length = 5; |
136 |
|
|
break; |
137 |
|
|
case CS6: |
138 |
|
|
word_length = 6; |
139 |
|
|
break; |
140 |
|
|
case CS7: |
141 |
|
|
word_length = 7; |
142 |
|
|
break; |
143 |
|
|
default: |
144 |
|
|
word_length = 8; |
145 |
|
|
break; |
146 |
matthewc |
432 |
} |
147 |
|
|
|
148 |
|
|
return True; |
149 |
|
|
} |
150 |
|
|
|
151 |
|
|
static void |
152 |
|
|
set_termios(void) |
153 |
|
|
{ |
154 |
|
|
speed_t speed; |
155 |
|
|
|
156 |
|
|
switch (baud_rate) |
157 |
|
|
{ |
158 |
astrand |
435 |
case 75: |
159 |
|
|
speed = B75; |
160 |
|
|
break; |
161 |
|
|
case 110: |
162 |
|
|
speed = B110; |
163 |
|
|
break; |
164 |
|
|
case 134: |
165 |
|
|
speed = B134; |
166 |
|
|
break; |
167 |
|
|
case 150: |
168 |
|
|
speed = B150; |
169 |
|
|
break; |
170 |
|
|
case 300: |
171 |
|
|
speed = B300; |
172 |
|
|
break; |
173 |
|
|
case 600: |
174 |
|
|
speed = B600; |
175 |
|
|
break; |
176 |
|
|
case 1200: |
177 |
|
|
speed = B1200; |
178 |
|
|
break; |
179 |
|
|
case 1800: |
180 |
|
|
speed = B1800; |
181 |
|
|
break; |
182 |
|
|
case 2400: |
183 |
|
|
speed = B2400; |
184 |
|
|
break; |
185 |
|
|
case 4800: |
186 |
|
|
speed = B4800; |
187 |
|
|
break; |
188 |
|
|
case 9600: |
189 |
|
|
speed = B9600; |
190 |
|
|
break; |
191 |
|
|
case 19200: |
192 |
|
|
speed = B19200; |
193 |
|
|
break; |
194 |
|
|
case 38400: |
195 |
|
|
speed = B38400; |
196 |
|
|
break; |
197 |
|
|
case 57600: |
198 |
|
|
speed = B57600; |
199 |
|
|
break; |
200 |
|
|
case 115200: |
201 |
|
|
speed = B115200; |
202 |
|
|
break; |
203 |
|
|
default: |
204 |
|
|
speed = B0; |
205 |
|
|
break; |
206 |
matthewc |
432 |
} |
207 |
|
|
|
208 |
|
|
/* on systems with separate ispeed and ospeed, we can remember the speed |
209 |
|
|
in ispeed while changing DTR with ospeed */ |
210 |
|
|
cfsetispeed(&termios, speed); |
211 |
|
|
cfsetospeed(&termios, dtr ? speed : 0); |
212 |
|
|
|
213 |
astrand |
435 |
termios.c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE); |
214 |
matthewc |
432 |
switch (stop_bits) |
215 |
|
|
{ |
216 |
|
|
case STOP_BITS_2: |
217 |
|
|
termios.c_cflag |= CSTOPB; |
218 |
|
|
break; |
219 |
|
|
} |
220 |
|
|
switch (parity) |
221 |
|
|
{ |
222 |
|
|
case EVEN_PARITY: |
223 |
|
|
termios.c_cflag |= PARENB; |
224 |
|
|
break; |
225 |
|
|
case ODD_PARITY: |
226 |
astrand |
435 |
termios.c_cflag |= PARENB | PARODD; |
227 |
matthewc |
432 |
break; |
228 |
|
|
} |
229 |
|
|
switch (word_length) |
230 |
|
|
{ |
231 |
astrand |
435 |
case 5: |
232 |
|
|
termios.c_cflag |= CS5; |
233 |
|
|
break; |
234 |
|
|
case 6: |
235 |
|
|
termios.c_cflag |= CS6; |
236 |
|
|
break; |
237 |
|
|
case 7: |
238 |
|
|
termios.c_cflag |= CS7; |
239 |
|
|
break; |
240 |
|
|
default: |
241 |
|
|
termios.c_cflag |= CS8; |
242 |
|
|
break; |
243 |
matthewc |
432 |
} |
244 |
|
|
|
245 |
|
|
tcsetattr(serial_fd, TCSANOW, &termios); |
246 |
|
|
} |
247 |
|
|
|
248 |
|
|
static NTSTATUS |
249 |
astrand |
435 |
serial_create(HANDLE * handle) |
250 |
matthewc |
432 |
{ |
251 |
|
|
/* XXX do we have to handle concurrent open attempts? */ |
252 |
|
|
serial_fd = open("/dev/ttyS0", O_RDWR); |
253 |
|
|
if (serial_fd == -1) |
254 |
|
|
return STATUS_ACCESS_DENIED; |
255 |
|
|
|
256 |
|
|
if (!get_termios()) |
257 |
|
|
return STATUS_ACCESS_DENIED; |
258 |
|
|
|
259 |
|
|
*handle = 0; |
260 |
|
|
return STATUS_SUCCESS; |
261 |
|
|
} |
262 |
|
|
|
263 |
|
|
static NTSTATUS |
264 |
|
|
serial_close(HANDLE handle) |
265 |
|
|
{ |
266 |
|
|
close(serial_fd); |
267 |
|
|
return STATUS_SUCCESS; |
268 |
|
|
} |
269 |
|
|
|
270 |
|
|
static NTSTATUS |
271 |
astrand |
435 |
serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
272 |
matthewc |
432 |
{ |
273 |
|
|
*result = read(serial_fd, data, length); |
274 |
|
|
return STATUS_SUCCESS; |
275 |
|
|
} |
276 |
|
|
|
277 |
|
|
static NTSTATUS |
278 |
astrand |
435 |
serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
279 |
matthewc |
432 |
{ |
280 |
|
|
*result = write(serial_fd, data, length); |
281 |
|
|
return STATUS_SUCCESS; |
282 |
|
|
} |
283 |
|
|
|
284 |
|
|
static NTSTATUS |
285 |
|
|
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
286 |
|
|
{ |
287 |
|
|
uint32 result; |
288 |
|
|
uint8 immediate; |
289 |
|
|
|
290 |
|
|
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
291 |
|
|
return STATUS_INVALID_PARAMETER; |
292 |
|
|
|
293 |
|
|
/* extract operation */ |
294 |
|
|
request >>= 2; |
295 |
|
|
request &= 0xfff; |
296 |
|
|
|
297 |
|
|
printf("SERIAL IOCTL %d\n", request); |
298 |
|
|
|
299 |
|
|
switch (request) |
300 |
|
|
{ |
301 |
|
|
case SERIAL_SET_BAUD_RATE: |
302 |
|
|
in_uint32_le(in, baud_rate); |
303 |
|
|
set_termios(); |
304 |
|
|
break; |
305 |
|
|
case SERIAL_GET_BAUD_RATE: |
306 |
|
|
out_uint32_le(out, baud_rate); |
307 |
|
|
break; |
308 |
|
|
case SERIAL_SET_QUEUE_SIZE: |
309 |
|
|
in_uint32_le(in, queue_in_size); |
310 |
|
|
in_uint32_le(in, queue_out_size); |
311 |
|
|
break; |
312 |
|
|
case SERIAL_SET_LINE_CONTROL: |
313 |
|
|
in_uint8(in, stop_bits); |
314 |
|
|
in_uint8(in, parity); |
315 |
|
|
in_uint8(in, word_length); |
316 |
|
|
set_termios(); |
317 |
|
|
break; |
318 |
|
|
case SERIAL_GET_LINE_CONTROL: |
319 |
|
|
out_uint8(out, stop_bits); |
320 |
|
|
out_uint8(out, parity); |
321 |
|
|
out_uint8(out, word_length); |
322 |
|
|
break; |
323 |
|
|
case SERIAL_IMMEDIATE_CHAR: |
324 |
|
|
in_uint8(in, immediate); |
325 |
|
|
serial_write(handle, &immediate, 1, &result); |
326 |
|
|
break; |
327 |
|
|
case SERIAL_CONFIG_SIZE: |
328 |
|
|
out_uint32_le(out, 0); |
329 |
|
|
break; |
330 |
|
|
case SERIAL_GET_CHARS: |
331 |
|
|
out_uint8s(out, 6); |
332 |
|
|
break; |
333 |
|
|
case SERIAL_SET_CHARS: |
334 |
|
|
in_uint8s(in, 6); |
335 |
|
|
break; |
336 |
|
|
case SERIAL_GET_HANDFLOW: |
337 |
|
|
out_uint32_le(out, 0); |
338 |
astrand |
435 |
out_uint32_le(out, 3); /* Xon/Xoff */ |
339 |
matthewc |
432 |
out_uint32_le(out, 0); |
340 |
|
|
out_uint32_le(out, 0); |
341 |
|
|
break; |
342 |
|
|
case SERIAL_SET_HANDFLOW: |
343 |
|
|
in_uint8s(in, 16); |
344 |
|
|
break; |
345 |
|
|
case SERIAL_SET_TIMEOUTS: |
346 |
|
|
in_uint8s(in, 20); |
347 |
|
|
break; |
348 |
|
|
case SERIAL_GET_TIMEOUTS: |
349 |
|
|
out_uint8s(out, 20); |
350 |
|
|
break; |
351 |
|
|
case SERIAL_GET_WAIT_MASK: |
352 |
|
|
out_uint32(out, wait_mask); |
353 |
|
|
break; |
354 |
|
|
case SERIAL_SET_WAIT_MASK: |
355 |
|
|
in_uint32(in, wait_mask); |
356 |
|
|
break; |
357 |
|
|
case SERIAL_SET_DTR: |
358 |
|
|
dtr = 1; |
359 |
|
|
set_termios(); |
360 |
|
|
break; |
361 |
|
|
case SERIAL_CLR_DTR: |
362 |
|
|
dtr = 0; |
363 |
|
|
set_termios(); |
364 |
|
|
break; |
365 |
|
|
#if 0 |
366 |
|
|
case SERIAL_WAIT_ON_MASK: |
367 |
|
|
/* XXX implement me */ |
368 |
|
|
break; |
369 |
|
|
case SERIAL_SET_BREAK_ON: |
370 |
|
|
tcsendbreak(serial_fd, 0); |
371 |
|
|
break; |
372 |
|
|
case SERIAL_PURGE: |
373 |
|
|
in_uint32(purge_mask); |
374 |
|
|
/* tcflush */ |
375 |
|
|
break; |
376 |
|
|
case SERIAL_RESET_DEVICE: |
377 |
|
|
case SERIAL_SET_BREAK_OFF: |
378 |
|
|
case SERIAL_SET_RTS: |
379 |
|
|
case SERIAL_CLR_RTS: |
380 |
|
|
case SERIAL_SET_XOFF: |
381 |
|
|
case SERIAL_SET_XON: |
382 |
|
|
/* ignore */ |
383 |
|
|
break; |
384 |
|
|
#endif |
385 |
|
|
|
386 |
|
|
default: |
387 |
|
|
unimpl("SERIAL IOCTL %d\n", request); |
388 |
|
|
return STATUS_INVALID_PARAMETER; |
389 |
|
|
} |
390 |
|
|
|
391 |
|
|
return STATUS_SUCCESS; |
392 |
|
|
} |
393 |
|
|
|
394 |
astrand |
435 |
DEVICE_FNS serial_fns = { |
395 |
matthewc |
432 |
serial_create, |
396 |
|
|
serial_close, |
397 |
|
|
serial_read, |
398 |
|
|
serial_write, |
399 |
|
|
serial_device_control |
400 |
|
|
}; |