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 |
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#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 |
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#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 |
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#define SERIAL_GET_COMMSTATUS 27 |
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#define SERIAL_XOFF_COUNTER 28 |
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#define SERIAL_GET_PROPERTIES 29 |
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#define SERIAL_GET_DTRRTS 30 |
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#define SERIAL_LSRMST_INSERT 31 |
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#define SERIAL_CONFIG_SIZE 32 |
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#define SERIAL_GET_COMMCONFIG 33 |
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#define SERIAL_SET_COMMCONFIG 34 |
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#define SERIAL_GET_STATS 35 |
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#define SERIAL_CLEAR_STATS 36 |
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#define SERIAL_GET_MODEM_CONTROL 37 |
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#define SERIAL_SET_MODEM_CONTROL 38 |
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#define SERIAL_SET_FIFO_CONTROL 39 |
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|
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#define STOP_BITS_1 0 |
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#define STOP_BITS_2 2 |
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|
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#define NO_PARITY 0 |
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#define ODD_PARITY 1 |
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#define EVEN_PARITY 2 |
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|
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int serial_fd; |
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struct termios termios; |
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|
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int dtr; |
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uint32 baud_rate; |
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uint32 queue_in_size, queue_out_size; |
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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; |
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|
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speed = cfgetispeed(&termios); |
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switch (speed) |
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{ |
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case B75: |
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baud_rate = 75; |
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break; |
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case B110: |
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baud_rate = 110; |
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break; |
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case B134: |
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baud_rate = 134; |
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break; |
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case B150: |
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baud_rate = 150; |
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break; |
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case B300: |
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baud_rate = 300; |
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break; |
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case B600: |
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baud_rate = 600; |
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break; |
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case B1200: |
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baud_rate = 1200; |
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break; |
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case B1800: |
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baud_rate = 1800; |
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break; |
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case B2400: |
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baud_rate = 2400; |
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break; |
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case B4800: |
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baud_rate = 4800; |
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break; |
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case B9600: |
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baud_rate = 9600; |
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break; |
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case B19200: |
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baud_rate = 19200; |
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break; |
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case B38400: |
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baud_rate = 38400; |
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break; |
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case B57600: |
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baud_rate = 57600; |
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break; |
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case B115200: |
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baud_rate = 115200; |
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break; |
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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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case 75: |
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speed = B75; |
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break; |
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case 110: |
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speed = B110; |
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break; |
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case 134: |
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speed = B134; |
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break; |
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case 150: |
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speed = B150; |
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break; |
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case 300: |
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speed = B300; |
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break; |
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case 600: |
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speed = B600; |
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break; |
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case 1200: |
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speed = B1200; |
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break; |
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case 1800: |
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speed = B1800; |
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break; |
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case 2400: |
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speed = B2400; |
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break; |
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case 4800: |
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speed = B4800; |
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break; |
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case 9600: |
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speed = B9600; |
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break; |
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case 19200: |
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speed = B19200; |
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break; |
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case 38400: |
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speed = B38400; |
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break; |
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case 57600: |
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speed = B57600; |
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break; |
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case 115200: |
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speed = B115200; |
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break; |
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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 */ |
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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); |
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switch (stop_bits) |
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{ |
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case STOP_BITS_2: |
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termios.c_cflag |= CSTOPB; |
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break; |
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} |
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switch (parity) |
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{ |
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case EVEN_PARITY: |
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termios.c_cflag |= PARENB; |
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break; |
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case ODD_PARITY: |
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termios.c_cflag |= PARENB | PARODD; |
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break; |
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} |
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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; |
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case 6: |
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termios.c_cflag |= CS6; |
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break; |
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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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} |
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|
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tcsetattr(serial_fd, TCSANOW, &termios); |
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} |
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|
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static NTSTATUS |
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serial_create(HANDLE * handle) |
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{ |
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/* XXX do we have to handle concurrent open attempts? */ |
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serial_fd = open("/dev/ttyS0", O_RDWR); |
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if (serial_fd == -1) |
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return STATUS_ACCESS_DENIED; |
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|
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if (!get_termios()) |
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return STATUS_ACCESS_DENIED; |
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|
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*handle = 0; |
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return STATUS_SUCCESS; |
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} |
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|
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static NTSTATUS |
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serial_close(HANDLE handle) |
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{ |
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close(serial_fd); |
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return STATUS_SUCCESS; |
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} |
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|
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static NTSTATUS |
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serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
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{ |
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*result = read(serial_fd, data, length); |
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return STATUS_SUCCESS; |
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} |
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|
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static NTSTATUS |
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serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 * result) |
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{ |
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*result = write(serial_fd, data, length); |
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return STATUS_SUCCESS; |
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} |
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|
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static NTSTATUS |
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serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
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{ |
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uint32 result; |
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uint8 immediate; |
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|
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if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
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return STATUS_INVALID_PARAMETER; |
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|
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/* extract operation */ |
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request >>= 2; |
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request &= 0xfff; |
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|
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printf("SERIAL IOCTL %d\n", request); |
298 |
|
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switch (request) |
300 |
{ |
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case SERIAL_SET_BAUD_RATE: |
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in_uint32_le(in, baud_rate); |
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set_termios(); |
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break; |
305 |
case SERIAL_GET_BAUD_RATE: |
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out_uint32_le(out, baud_rate); |
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break; |
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case SERIAL_SET_QUEUE_SIZE: |
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in_uint32_le(in, queue_in_size); |
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in_uint32_le(in, queue_out_size); |
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break; |
312 |
case SERIAL_SET_LINE_CONTROL: |
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in_uint8(in, stop_bits); |
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in_uint8(in, parity); |
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in_uint8(in, word_length); |
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set_termios(); |
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break; |
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case SERIAL_GET_LINE_CONTROL: |
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out_uint8(out, stop_bits); |
320 |
out_uint8(out, parity); |
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out_uint8(out, word_length); |
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break; |
323 |
case SERIAL_IMMEDIATE_CHAR: |
324 |
in_uint8(in, immediate); |
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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: |
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out_uint8s(out, 6); |
332 |
break; |
333 |
case SERIAL_SET_CHARS: |
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in_uint8s(in, 6); |
335 |
break; |
336 |
case SERIAL_GET_HANDFLOW: |
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out_uint32_le(out, 0); |
338 |
out_uint32_le(out, 3); /* Xon/Xoff */ |
339 |
out_uint32_le(out, 0); |
340 |
out_uint32_le(out, 0); |
341 |
break; |
342 |
case SERIAL_SET_HANDFLOW: |
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in_uint8s(in, 16); |
344 |
break; |
345 |
case SERIAL_SET_TIMEOUTS: |
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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 |
DEVICE_FNS serial_fns = { |
395 |
serial_create, |
396 |
serial_close, |
397 |
serial_read, |
398 |
serial_write, |
399 |
serial_device_control |
400 |
}; |