1 |
#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 |
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#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; |
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|
58 |
int dtr; |
59 |
uint32 baud_rate; |
60 |
uint32 queue_in_size, queue_out_size; |
61 |
uint32 wait_mask; |
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uint8 stop_bits, parity, word_length; |
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|
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static BOOL |
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get_termios(void) |
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{ |
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speed_t speed; |
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|
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if (tcgetattr(serial_fd, &termios) == -1) |
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return False; |
71 |
|
72 |
speed = cfgetispeed(&termios); |
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switch (speed) |
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{ |
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#ifdef B75 |
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case B75: |
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baud_rate = 75; |
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break; |
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#endif |
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#ifdef B110 |
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case B110: |
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baud_rate = 110; |
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break; |
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#endif |
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#ifdef B134 |
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case B134: |
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baud_rate = 134; |
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break; |
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#endif |
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#ifdef B150 |
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case B150: |
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baud_rate = 150; |
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break; |
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#endif |
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#ifdef B300 |
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case B300: |
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baud_rate = 300; |
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break; |
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#endif |
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#ifdef B600 |
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case B600: |
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baud_rate = 600; |
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break; |
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#endif |
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#ifdef B1200 |
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case B1200: |
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baud_rate = 1200; |
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break; |
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#endif |
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#ifdef B1800 |
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case B1800: |
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baud_rate = 1800; |
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break; |
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#endif |
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#ifdef B2400 |
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case B2400: |
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baud_rate = 2400; |
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break; |
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#endif |
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#ifdef B4800 |
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case B4800: |
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baud_rate = 4800; |
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break; |
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#endif |
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#ifdef B9600 |
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case B9600: |
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baud_rate = 9600; |
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break; |
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#endif |
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#ifdef B19200 |
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case B19200: |
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baud_rate = 19200; |
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break; |
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#endif |
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#ifdef B38400 |
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case B38400: |
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baud_rate = 38400; |
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break; |
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#endif |
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#ifdef B57600 |
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case B57600: |
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baud_rate = 57600; |
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break; |
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#endif |
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#ifdef B115200 |
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case B115200: |
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baud_rate = 115200; |
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break; |
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#endif |
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default: |
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baud_rate = 0; |
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break; |
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} |
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|
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speed = cfgetospeed(&termios); |
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dtr = (speed == B0) ? 0 : 1; |
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|
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stop_bits = (termios.c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
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parity = (termios. |
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c_cflag & PARENB) ? ((termios. |
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c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
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switch (termios.c_cflag & CSIZE) |
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{ |
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case CS5: |
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word_length = 5; |
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break; |
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case CS6: |
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word_length = 6; |
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break; |
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case CS7: |
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word_length = 7; |
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break; |
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default: |
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word_length = 8; |
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break; |
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} |
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|
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return True; |
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} |
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|
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static void |
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set_termios(void) |
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{ |
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speed_t speed; |
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|
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switch (baud_rate) |
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{ |
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#ifdef B75 |
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case 75: |
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speed = B75; |
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break; |
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#endif |
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#ifdef B110 |
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case 110: |
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speed = B110; |
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break; |
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#endif |
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#ifdef B134 |
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case 134: |
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speed = B134; |
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break; |
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#endif |
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#ifdef B150 |
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case 150: |
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speed = B150; |
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break; |
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#endif |
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#ifdef B300 |
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case 300: |
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speed = B300; |
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break; |
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#endif |
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#ifdef B600 |
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case 600: |
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speed = B600; |
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break; |
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#endif |
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#ifdef B1200 |
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case 1200: |
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speed = B1200; |
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break; |
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#endif |
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#ifdef B1800 |
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case 1800: |
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speed = B1800; |
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break; |
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#endif |
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#ifdef B2400 |
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case 2400: |
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speed = B2400; |
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break; |
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#endif |
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#ifdef B4800 |
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case 4800: |
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speed = B4800; |
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break; |
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#endif |
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#ifdef B9600 |
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case 9600: |
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speed = B9600; |
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break; |
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#endif |
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#ifdef B19200 |
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case 19200: |
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speed = B19200; |
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break; |
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#endif |
248 |
#ifdef B38400 |
249 |
case 38400: |
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speed = B38400; |
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break; |
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#endif |
253 |
#ifdef B57600 |
254 |
case 57600: |
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speed = B57600; |
256 |
break; |
257 |
#endif |
258 |
#ifdef B115200 |
259 |
case 115200: |
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speed = B115200; |
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break; |
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#endif |
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default: |
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speed = B0; |
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break; |
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} |
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|
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/* on systems with separate ispeed and ospeed, we can remember the speed |
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in ispeed while changing DTR with ospeed */ |
270 |
cfsetispeed(&termios, speed); |
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cfsetospeed(&termios, dtr ? speed : 0); |
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|
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termios.c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE); |
274 |
switch (stop_bits) |
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{ |
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case STOP_BITS_2: |
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termios.c_cflag |= CSTOPB; |
278 |
break; |
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} |
280 |
switch (parity) |
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{ |
282 |
case EVEN_PARITY: |
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termios.c_cflag |= PARENB; |
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break; |
285 |
case ODD_PARITY: |
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termios.c_cflag |= PARENB | PARODD; |
287 |
break; |
288 |
} |
289 |
switch (word_length) |
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{ |
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case 5: |
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termios.c_cflag |= CS5; |
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break; |
294 |
case 6: |
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termios.c_cflag |= CS6; |
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break; |
297 |
case 7: |
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termios.c_cflag |= CS7; |
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break; |
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default: |
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termios.c_cflag |= CS8; |
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break; |
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} |
304 |
|
305 |
tcsetattr(serial_fd, TCSANOW, &termios); |
306 |
} |
307 |
|
308 |
static NTSTATUS |
309 |
serial_create(HANDLE * handle) |
310 |
{ |
311 |
/* XXX do we have to handle concurrent open attempts? */ |
312 |
serial_fd = open("/dev/ttyS0", O_RDWR); |
313 |
if (serial_fd == -1) |
314 |
return STATUS_ACCESS_DENIED; |
315 |
|
316 |
if (!get_termios()) |
317 |
return STATUS_ACCESS_DENIED; |
318 |
|
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*handle = 0; |
320 |
return STATUS_SUCCESS; |
321 |
} |
322 |
|
323 |
static NTSTATUS |
324 |
serial_close(HANDLE handle) |
325 |
{ |
326 |
close(serial_fd); |
327 |
return STATUS_SUCCESS; |
328 |
} |
329 |
|
330 |
static NTSTATUS |
331 |
serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
332 |
{ |
333 |
*result = read(serial_fd, data, length); |
334 |
return STATUS_SUCCESS; |
335 |
} |
336 |
|
337 |
static NTSTATUS |
338 |
serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
339 |
{ |
340 |
*result = write(serial_fd, data, length); |
341 |
return STATUS_SUCCESS; |
342 |
} |
343 |
|
344 |
static NTSTATUS |
345 |
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
346 |
{ |
347 |
uint32 result; |
348 |
uint8 immediate; |
349 |
|
350 |
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
351 |
return STATUS_INVALID_PARAMETER; |
352 |
|
353 |
/* extract operation */ |
354 |
request >>= 2; |
355 |
request &= 0xfff; |
356 |
|
357 |
printf("SERIAL IOCTL %d\n", request); |
358 |
|
359 |
switch (request) |
360 |
{ |
361 |
case SERIAL_SET_BAUD_RATE: |
362 |
in_uint32_le(in, baud_rate); |
363 |
set_termios(); |
364 |
break; |
365 |
case SERIAL_GET_BAUD_RATE: |
366 |
out_uint32_le(out, baud_rate); |
367 |
break; |
368 |
case SERIAL_SET_QUEUE_SIZE: |
369 |
in_uint32_le(in, queue_in_size); |
370 |
in_uint32_le(in, queue_out_size); |
371 |
break; |
372 |
case SERIAL_SET_LINE_CONTROL: |
373 |
in_uint8(in, stop_bits); |
374 |
in_uint8(in, parity); |
375 |
in_uint8(in, word_length); |
376 |
set_termios(); |
377 |
break; |
378 |
case SERIAL_GET_LINE_CONTROL: |
379 |
out_uint8(out, stop_bits); |
380 |
out_uint8(out, parity); |
381 |
out_uint8(out, word_length); |
382 |
break; |
383 |
case SERIAL_IMMEDIATE_CHAR: |
384 |
in_uint8(in, immediate); |
385 |
serial_write(handle, &immediate, 1, &result); |
386 |
break; |
387 |
case SERIAL_CONFIG_SIZE: |
388 |
out_uint32_le(out, 0); |
389 |
break; |
390 |
case SERIAL_GET_CHARS: |
391 |
out_uint8s(out, 6); |
392 |
break; |
393 |
case SERIAL_SET_CHARS: |
394 |
in_uint8s(in, 6); |
395 |
break; |
396 |
case SERIAL_GET_HANDFLOW: |
397 |
out_uint32_le(out, 0); |
398 |
out_uint32_le(out, 3); /* Xon/Xoff */ |
399 |
out_uint32_le(out, 0); |
400 |
out_uint32_le(out, 0); |
401 |
break; |
402 |
case SERIAL_SET_HANDFLOW: |
403 |
in_uint8s(in, 16); |
404 |
break; |
405 |
case SERIAL_SET_TIMEOUTS: |
406 |
in_uint8s(in, 20); |
407 |
break; |
408 |
case SERIAL_GET_TIMEOUTS: |
409 |
out_uint8s(out, 20); |
410 |
break; |
411 |
case SERIAL_GET_WAIT_MASK: |
412 |
out_uint32(out, wait_mask); |
413 |
break; |
414 |
case SERIAL_SET_WAIT_MASK: |
415 |
in_uint32(in, wait_mask); |
416 |
break; |
417 |
case SERIAL_SET_DTR: |
418 |
dtr = 1; |
419 |
set_termios(); |
420 |
break; |
421 |
case SERIAL_CLR_DTR: |
422 |
dtr = 0; |
423 |
set_termios(); |
424 |
break; |
425 |
#if 0 |
426 |
case SERIAL_WAIT_ON_MASK: |
427 |
/* XXX implement me */ |
428 |
break; |
429 |
case SERIAL_SET_BREAK_ON: |
430 |
tcsendbreak(serial_fd, 0); |
431 |
break; |
432 |
case SERIAL_PURGE: |
433 |
in_uint32(purge_mask); |
434 |
/* tcflush */ |
435 |
break; |
436 |
case SERIAL_RESET_DEVICE: |
437 |
case SERIAL_SET_BREAK_OFF: |
438 |
case SERIAL_SET_RTS: |
439 |
case SERIAL_CLR_RTS: |
440 |
case SERIAL_SET_XOFF: |
441 |
case SERIAL_SET_XON: |
442 |
/* ignore */ |
443 |
break; |
444 |
#endif |
445 |
|
446 |
default: |
447 |
unimpl("SERIAL IOCTL %d\n", request); |
448 |
return STATUS_INVALID_PARAMETER; |
449 |
} |
450 |
|
451 |
return STATUS_SUCCESS; |
452 |
} |
453 |
|
454 |
DEVICE_FNS serial_fns = { |
455 |
serial_create, |
456 |
serial_close, |
457 |
serial_read, |
458 |
serial_write, |
459 |
serial_device_control |
460 |
}; |