trunk/rdesktop/serial.c

#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include <strings.h>
#include "rdesktop.h"

#define FILE_DEVICE_SERIAL_PORT         0x1b

#define SERIAL_SET_BAUD_RATE            1
#define SERIAL_SET_QUEUE_SIZE           2
#define SERIAL_SET_LINE_CONTROL         3
#define SERIAL_SET_BREAK_ON             4
#define SERIAL_SET_BREAK_OFF            5
#define SERIAL_IMMEDIATE_CHAR           6
#define SERIAL_SET_TIMEOUTS             7
#define SERIAL_GET_TIMEOUTS             8
#define SERIAL_SET_DTR                  9
#define SERIAL_CLR_DTR                  10
#define SERIAL_RESET_DEVICE             11
#define SERIAL_SET_RTS                  12
#define SERIAL_CLR_RTS                  13
#define SERIAL_SET_XOFF                 14
#define SERIAL_SET_XON                  15
#define SERIAL_GET_WAIT_MASK            16
#define SERIAL_SET_WAIT_MASK            17
#define SERIAL_WAIT_ON_MASK             18
#define SERIAL_PURGE                    19
#define SERIAL_GET_BAUD_RATE            20
#define SERIAL_GET_LINE_CONTROL         21
#define SERIAL_GET_CHARS                22
#define SERIAL_SET_CHARS                23
#define SERIAL_GET_HANDFLOW             24
#define SERIAL_SET_HANDFLOW             25
#define SERIAL_GET_MODEMSTATUS          26
#define SERIAL_GET_COMMSTATUS           27
#define SERIAL_XOFF_COUNTER             28
#define SERIAL_GET_PROPERTIES           29
#define SERIAL_GET_DTRRTS               30
#define SERIAL_LSRMST_INSERT            31
#define SERIAL_CONFIG_SIZE              32
#define SERIAL_GET_COMMCONFIG           33
#define SERIAL_SET_COMMCONFIG           34
#define SERIAL_GET_STATS                35
#define SERIAL_CLEAR_STATS              36
#define SERIAL_GET_MODEM_CONTROL        37
#define SERIAL_SET_MODEM_CONTROL        38
#define SERIAL_SET_FIFO_CONTROL         39

#define STOP_BITS_1                     0
#define STOP_BITS_2                     2

#define NO_PARITY                       0
#define ODD_PARITY                      1
#define EVEN_PARITY                     2

extern RDPDR_DEVICE    g_rdpdr_device[];

int serial_fd;
struct termios termios;

int dtr;
uint32 baud_rate;
uint32 queue_in_size, queue_out_size;
uint32 wait_mask;
uint8 stop_bits, parity, word_length;

SERIAL_DEVICE
*get_serial_info(HANDLE handle)
{
        int     index;

        for (index = 0; index < RDPDR_MAX_DEVICES; index++)
        {
                if (handle == g_rdpdr_device[index].handle)
                        return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
        }
        return NULL;
}

BOOL
get_termios(SERIAL_DEVICE *pser_inf, HANDLE serial_fd)
{
        speed_t         speed;
        struct termios  *ptermios;

        ptermios        = pser_inf->ptermios;

        if (tcgetattr(serial_fd, ptermios) == -1)
                return False;

        speed = cfgetispeed(ptermios);
        switch (speed)
        {
#ifdef B75
                case B75:       pser_inf->baud_rate = 75; break;
#endif
#ifdef B110
                case B110:      pser_inf->baud_rate = 110; break;
#endif
#ifdef B134
                case B134:      pser_inf->baud_rate = 134; break;
#endif
#ifdef B150
                case B150:      pser_inf->baud_rate = 150; break;
#endif
#ifdef B300
                case B300:      pser_inf->baud_rate = 300; break;
#endif
#ifdef B600
                case B600:      pser_inf->baud_rate = 600; break;
#endif
#ifdef B1200
                case B1200:     pser_inf->baud_rate = 1200; break;
#endif
#ifdef B1800
                case B1800:     pser_inf->baud_rate = 1800; break;
#endif
#ifdef B2400
                case B2400:     pser_inf->baud_rate = 2400; break;
#endif
#ifdef B4800
                case B4800:     pser_inf->baud_rate = 4800; break;
#endif
#ifdef B9600
                case B9600:     pser_inf->baud_rate = 9600; break;
#endif
#ifdef B19200
                case B19200:    pser_inf->baud_rate = 19200; break;
#endif
#ifdef B38400
                case B38400:    pser_inf->baud_rate = 38400; break;
#endif
#ifdef B57600
                case B57600:    pser_inf->baud_rate = 57600; break;
#endif
#ifdef B115200
                case B115200:   pser_inf->baud_rate = 115200; break;
#endif
                default:        pser_inf->baud_rate = 0; break;
        }

        speed = cfgetospeed(ptermios);
        pser_inf->dtr = (speed == B0) ? 0 : 1;

        pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1;
        pser_inf->parity = (ptermios->c_cflag & PARENB) ? ((ptermios->c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY;
        switch (ptermios->c_cflag & CSIZE)
        {
                case CS5: pser_inf->word_length = 5; break;
                case CS6: pser_inf->word_length = 6; break;
                case CS7: pser_inf->word_length = 7; break;
                default:  pser_inf->word_length = 8; break;
        }

        return True;
}

static void
set_termios(void)
{
        speed_t speed;

        switch (baud_rate)
        {
#ifdef B75
                case 75:        speed = B75;break;
#endif
#ifdef B110
                case 110:       speed = B110;break;
#endif
#ifdef B134
                case 134:       speed = B134;break;
#endif
#ifdef B150
                case 150:       speed = B150;break;
#endif
#ifdef B300
                case 300:       speed = B300;break;
#endif
#ifdef B600
                case 600:       speed = B600;break;
#endif
#ifdef B1200
                case 1200:      speed = B1200;break;
#endif
#ifdef B1800
                case 1800:      speed = B1800;break;
#endif
#ifdef B2400
                case 2400:      speed = B2400;break;
#endif
#ifdef B4800
                case 4800:      speed = B4800;break;
#endif
#ifdef B9600
                case 9600:      speed = B9600;break;
#endif
#ifdef B19200
                case 19200:     speed = B19200;break;
#endif
#ifdef B38400
                case 38400:     speed = B38400;break;
#endif
#ifdef B57600
                case 57600:     speed = B57600;break;
#endif
#ifdef B115200
                case 115200:    speed = B115200;break;
#endif
                default:        speed = B0;break;
        }

        /* on systems with separate ispeed and ospeed, we can remember the speed
           in ispeed while changing DTR with ospeed */
        cfsetispeed(&termios, speed);
        cfsetospeed(&termios, dtr ? speed : 0);

        termios.c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE);
        switch (stop_bits)
        {
                case STOP_BITS_2:
                        termios.c_cflag |= CSTOPB;
                        break;
        }
        switch (parity)
        {
                case EVEN_PARITY:
                        termios.c_cflag |= PARENB;
                        break;
                case ODD_PARITY:
                        termios.c_cflag |= PARENB | PARODD;
                        break;
        }
        switch (word_length)
        {
                case 5:
                        termios.c_cflag |= CS5;
                        break;
                case 6:
                        termios.c_cflag |= CS6;
                        break;
                case 7:
                        termios.c_cflag |= CS7;
                        break;
                default:
                        termios.c_cflag |= CS8;
                        break;
        }

        tcsetattr(serial_fd, TCSANOW, &termios);
}

/* Enumeration of devices from rdesktop.c        */
/* returns numer of units found and initialized. */
/* optarg looks like ':com1=/dev/ttyS0'           */
/* when it arrives to this function.              */
/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */
int
serial_enum_devices(int *id, char* optarg)
{
        SERIAL_DEVICE* pser_inf;

        char *pos = optarg;
        char *pos2;
        int count = 0;

        // skip the first colon
        optarg++;
        while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
        {
                // Init data structures for device
                pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE));
                pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios));
                pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios));

                pos2 = next_arg(optarg, '=');
                strcpy(g_rdpdr_device[*id].name, optarg);

                toupper_str(g_rdpdr_device[*id].name);

                g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
                strcpy(g_rdpdr_device[*id].local_path, pos2);
                printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name, g_rdpdr_device[*id].local_path);
                // set device type
                g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL;
                g_rdpdr_device[*id].pdevice_data = (void *) pser_inf;
                count++;
                (*id)++;

                optarg = pos;
        }
        return count;
}

NTSTATUS
serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, uint32 flags_and_attributes, char *filename, HANDLE *handle)
{
        HANDLE          serial_fd;
        SERIAL_DEVICE   *pser_inf;
        struct termios  *ptermios;

        pser_inf        = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data;
        ptermios        = pser_inf->ptermios;
        serial_fd       = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY);

        if (serial_fd == -1)
                return STATUS_ACCESS_DENIED;

        if (!get_termios(pser_inf, serial_fd ))
                return STATUS_ACCESS_DENIED;

        // Store handle for later use
        g_rdpdr_device[device_id].handle = serial_fd;

        /* some sane information */
        printf("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u\n",
                g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path,
                pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr );
        printf("INFO: use stty to change settings\n" );

        //tcgetattr(serial_fd, pser_inf->ptermios);

         *handle = serial_fd;
        return STATUS_SUCCESS;
}

static NTSTATUS
serial_close(HANDLE handle)
{
        close(serial_fd);
        return STATUS_SUCCESS;
}

NTSTATUS
serial_read(HANDLE handle, uint8 *data, uint32 length, uint32 offset, uint32 *result)
{
        long            timeout;
        SERIAL_DEVICE   *pser_inf;
        struct termios  *ptermios;

        timeout         = 0;
        pser_inf        = get_serial_info(handle);
        ptermios        = pser_inf->ptermios;

        // Set timeouts kind of like the windows serial timeout parameters. Multiply timeout
        // with requested read size
        if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant)
        {
                timeout = (pser_inf->read_total_timeout_multiplier * length + pser_inf->read_total_timeout_constant + 99) / 100;
        }
        else if (pser_inf->read_interval_timeout)
        {
                timeout = (pser_inf->read_interval_timeout * length + 99) / 100;
        }

        // If a timeout is set, do a blocking read, which times out after some time.
        // It will make rdesktop less responsive, but it will improve serial performance, by not
        // reading one character at a time.
        if (timeout == 0)
        {
                ptermios->c_cc[VTIME] = 0;
                ptermios->c_cc[VMIN] = 0;
        }
        else
        {
                ptermios->c_cc[VTIME] = timeout;
                ptermios->c_cc[VMIN] = 1;
        }
        tcsetattr(handle, TCSANOW, ptermios);

        *result = read(handle, data, length);
        return STATUS_SUCCESS;
}

NTSTATUS
serial_write(HANDLE handle, uint8 *data, uint32 length, uint32 offset, uint32 *result)
{
        *result = write(handle, data, length);
        return STATUS_SUCCESS;
}

static NTSTATUS
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
{
        uint32 result;
        uint8 immediate;

        if ((request >> 16) != FILE_DEVICE_SERIAL_PORT)
                return STATUS_INVALID_PARAMETER;

        /* extract operation */
        request >>= 2;
        request &= 0xfff;

        printf("SERIAL IOCTL %d\n", request);

        switch (request)
        {
                case SERIAL_SET_BAUD_RATE:
                        in_uint32_le(in, baud_rate);
                        set_termios();
                        break;
                case SERIAL_GET_BAUD_RATE:
                        out_uint32_le(out, baud_rate);
                        break;
                case SERIAL_SET_QUEUE_SIZE:
                        in_uint32_le(in, queue_in_size);
                        in_uint32_le(in, queue_out_size);
                        break;
                case SERIAL_SET_LINE_CONTROL:
                        in_uint8(in, stop_bits);
                        in_uint8(in, parity);
                        in_uint8(in, word_length);
                        set_termios();
                        break;
                case SERIAL_GET_LINE_CONTROL:
                        out_uint8(out, stop_bits);
                        out_uint8(out, parity);
                        out_uint8(out, word_length);
                        break;
                case SERIAL_IMMEDIATE_CHAR:
                        in_uint8(in, immediate);
                        serial_write(handle, &immediate, 1, 0, &result);
                        break;
                case SERIAL_CONFIG_SIZE:
                        out_uint32_le(out, 0);
                        break;
                case SERIAL_GET_CHARS:
                        out_uint8s(out, 6);
                        break;
                case SERIAL_SET_CHARS:
                        in_uint8s(in, 6);
                        break;
                case SERIAL_GET_HANDFLOW:
                        out_uint32_le(out, 0);
                        out_uint32_le(out, 3);  /* Xon/Xoff */
                        out_uint32_le(out, 0);
                        out_uint32_le(out, 0);
                        break;
                case SERIAL_SET_HANDFLOW:
                        in_uint8s(in, 16);
                        break;
                case SERIAL_SET_TIMEOUTS:
                        in_uint8s(in, 20);
                        break;
                case SERIAL_GET_TIMEOUTS:
                        out_uint8s(out, 20);
                        break;
                case SERIAL_GET_WAIT_MASK:
                        out_uint32(out, wait_mask);
                        break;
                case SERIAL_SET_WAIT_MASK:
                        in_uint32(in, wait_mask);
                        break;
                case SERIAL_SET_DTR:
                        dtr = 1;
                        set_termios();
                        break;
                case SERIAL_CLR_DTR:
                        dtr = 0;
                        set_termios();
                        break;
#if 0
                case SERIAL_WAIT_ON_MASK:
                        /* XXX implement me */
                        break;
                case SERIAL_SET_BREAK_ON:
                        tcsendbreak(serial_fd, 0);
                        break;
                case SERIAL_PURGE:

                        printf("SERIAL_PURGE\n");
                        in_uint32(in, purge_mask);
                        if (purge_mask & 0x04) flush_mask |= TCOFLUSH;
                        if (purge_mask & 0x08) flush_mask |= TCIFLUSH;
                        if (flush_mask != 0) tcflush(handle, flush_mask);
                        if (purge_mask & 0x01) rdpdr_abort_io(handle, 4, STATUS_CANCELLED);
                        if (purge_mask & 0x02) rdpdr_abort_io(handle, 3, STATUS_CANCELLED);
                        break;

                case SERIAL_RESET_DEVICE:
                case SERIAL_SET_BREAK_OFF:
                case SERIAL_SET_RTS:
                case SERIAL_CLR_RTS:
                case SERIAL_SET_XOFF:
                case SERIAL_SET_XON:
                        /* ignore */
                        break;
#endif

                default:
                        unimpl("SERIAL IOCTL %d\n", request);
                        return STATUS_INVALID_PARAMETER;
        }

        return STATUS_SUCCESS;
}

/* Read timeout for a given file descripter (device) when adding fd's to select() */
BOOL
serial_get_timeout(uint32 handle, uint32 length, uint32 *timeout, uint32 *itv_timeout)
{
        int             index;
        SERIAL_DEVICE   *pser_inf;

        index = get_device_index(handle);

        if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL)
        {
                return False;
        }

        pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;

        *timeout = pser_inf->read_total_timeout_multiplier * length + pser_inf->read_total_timeout_constant;
        *itv_timeout = pser_inf->read_interval_timeout;
        return True;
}

DEVICE_FNS serial_fns = {
        serial_create,
        serial_close,
        serial_read,
        serial_write,
        serial_device_control
};
1	matthewc	432	#include <unistd.h>
2			#include <fcntl.h>
3			#include <termios.h>
4	stargo	570	#include <strings.h>
5	matthewc	432	#include "rdesktop.h"
6
7			#define FILE_DEVICE_SERIAL_PORT 0x1b
8
9			#define SERIAL_SET_BAUD_RATE 1
10			#define SERIAL_SET_QUEUE_SIZE 2
11			#define SERIAL_SET_LINE_CONTROL 3
12			#define SERIAL_SET_BREAK_ON 4
13			#define SERIAL_SET_BREAK_OFF 5
14			#define SERIAL_IMMEDIATE_CHAR 6
15			#define SERIAL_SET_TIMEOUTS 7
16			#define SERIAL_GET_TIMEOUTS 8
17			#define SERIAL_SET_DTR 9
18			#define SERIAL_CLR_DTR 10
19			#define SERIAL_RESET_DEVICE 11
20			#define SERIAL_SET_RTS 12
21			#define SERIAL_CLR_RTS 13
22			#define SERIAL_SET_XOFF 14
23			#define SERIAL_SET_XON 15
24			#define SERIAL_GET_WAIT_MASK 16
25			#define SERIAL_SET_WAIT_MASK 17
26			#define SERIAL_WAIT_ON_MASK 18
27			#define SERIAL_PURGE 19
28			#define SERIAL_GET_BAUD_RATE 20
29			#define SERIAL_GET_LINE_CONTROL 21
30			#define SERIAL_GET_CHARS 22
31			#define SERIAL_SET_CHARS 23
32			#define SERIAL_GET_HANDFLOW 24
33			#define SERIAL_SET_HANDFLOW 25
34			#define SERIAL_GET_MODEMSTATUS 26
35			#define SERIAL_GET_COMMSTATUS 27
36			#define SERIAL_XOFF_COUNTER 28
37			#define SERIAL_GET_PROPERTIES 29
38			#define SERIAL_GET_DTRRTS 30
39			#define SERIAL_LSRMST_INSERT 31
40			#define SERIAL_CONFIG_SIZE 32
41			#define SERIAL_GET_COMMCONFIG 33
42			#define SERIAL_SET_COMMCONFIG 34
43			#define SERIAL_GET_STATS 35
44			#define SERIAL_CLEAR_STATS 36
45			#define SERIAL_GET_MODEM_CONTROL 37
46			#define SERIAL_SET_MODEM_CONTROL 38
47			#define SERIAL_SET_FIFO_CONTROL 39
48
49			#define STOP_BITS_1 0
50			#define STOP_BITS_2 2
51
52			#define NO_PARITY 0
53			#define ODD_PARITY 1
54			#define EVEN_PARITY 2
55
56	n-ki	569	extern RDPDR_DEVICE g_rdpdr_device[];
57
58	matthewc	432	int serial_fd;
59			struct termios termios;
60
61			int dtr;
62			uint32 baud_rate;
63			uint32 queue_in_size, queue_out_size;
64			uint32 wait_mask;
65			uint8 stop_bits, parity, word_length;
66
67	n-ki	569	SERIAL_DEVICE
68			*get_serial_info(HANDLE handle)
69	matthewc	432	{
70	n-ki	569	int index;
71	matthewc	432
72	n-ki	569	for (index = 0; index < RDPDR_MAX_DEVICES; index++)
73			{
74			if (handle == g_rdpdr_device[index].handle)
75			return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
76			}
77			return NULL;
78			}
79	matthewc	432
80	n-ki	569	BOOL
81			get_termios(SERIAL_DEVICE *pser_inf, HANDLE serial_fd)
82			{
83			speed_t speed;
84			struct termios *ptermios;
85
86			ptermios = pser_inf->ptermios;
87
88			if (tcgetattr(serial_fd, ptermios) == -1)
89			return False;
90
91			speed = cfgetispeed(ptermios);
92			switch (speed)
93			{
94	stargo	545	#ifdef B75
95	n-ki	569	case B75: pser_inf->baud_rate = 75; break;
96	stargo	545	#endif
97			#ifdef B110
98	n-ki	569	case B110: pser_inf->baud_rate = 110; break;
99	stargo	545	#endif
100			#ifdef B134
101	n-ki	569	case B134: pser_inf->baud_rate = 134; break;
102	stargo	545	#endif
103			#ifdef B150
104	n-ki	569	case B150: pser_inf->baud_rate = 150; break;
105	stargo	545	#endif
106			#ifdef B300
107	n-ki	569	case B300: pser_inf->baud_rate = 300; break;
108	stargo	545	#endif
109			#ifdef B600
110	n-ki	569	case B600: pser_inf->baud_rate = 600; break;
111	stargo	545	#endif
112			#ifdef B1200
113	n-ki	569	case B1200: pser_inf->baud_rate = 1200; break;
114	stargo	545	#endif
115			#ifdef B1800
116	n-ki	569	case B1800: pser_inf->baud_rate = 1800; break;
117	stargo	545	#endif
118			#ifdef B2400
119	n-ki	569	case B2400: pser_inf->baud_rate = 2400; break;
120	stargo	545	#endif
121			#ifdef B4800
122	n-ki	569	case B4800: pser_inf->baud_rate = 4800; break;
123	stargo	545	#endif
124			#ifdef B9600
125	n-ki	569	case B9600: pser_inf->baud_rate = 9600; break;
126	stargo	545	#endif
127			#ifdef B19200
128	n-ki	569	case B19200: pser_inf->baud_rate = 19200; break;
129	stargo	545	#endif
130			#ifdef B38400
131	n-ki	569	case B38400: pser_inf->baud_rate = 38400; break;
132	stargo	545	#endif
133			#ifdef B57600
134	n-ki	569	case B57600: pser_inf->baud_rate = 57600; break;
135	stargo	545	#endif
136			#ifdef B115200
137	n-ki	569	case B115200: pser_inf->baud_rate = 115200; break;
138	stargo	545	#endif
139	n-ki	569	default: pser_inf->baud_rate = 0; break;
140			}
141	matthewc	432
142	n-ki	569	speed = cfgetospeed(ptermios);
143			pser_inf->dtr = (speed == B0) ? 0 : 1;
144	matthewc	432
145	n-ki	569	pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1;
146			pser_inf->parity = (ptermios->c_cflag & PARENB) ? ((ptermios->c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY;
147			switch (ptermios->c_cflag & CSIZE)
148			{
149			case CS5: pser_inf->word_length = 5; break;
150			case CS6: pser_inf->word_length = 6; break;
151			case CS7: pser_inf->word_length = 7; break;
152			default: pser_inf->word_length = 8; break;
153			}
154	matthewc	432
155	n-ki	569	return True;
156	matthewc	432	}
157
158			static void
159			set_termios(void)
160			{
161			speed_t speed;
162
163			switch (baud_rate)
164			{
165	stargo	545	#ifdef B75
166	n-ki	569	case 75: speed = B75;break;
167	stargo	545	#endif
168			#ifdef B110
169	n-ki	569	case 110: speed = B110;break;
170	stargo	545	#endif
171			#ifdef B134
172	n-ki	569	case 134: speed = B134;break;
173	stargo	545	#endif
174			#ifdef B150
175	n-ki	569	case 150: speed = B150;break;
176	stargo	545	#endif
177			#ifdef B300
178	n-ki	569	case 300: speed = B300;break;
179	stargo	545	#endif
180			#ifdef B600
181	n-ki	569	case 600: speed = B600;break;
182	stargo	545	#endif
183			#ifdef B1200
184	n-ki	569	case 1200: speed = B1200;break;
185	stargo	545	#endif
186			#ifdef B1800
187	n-ki	569	case 1800: speed = B1800;break;
188	stargo	545	#endif
189			#ifdef B2400
190	n-ki	569	case 2400: speed = B2400;break;
191	stargo	545	#endif
192			#ifdef B4800
193	n-ki	569	case 4800: speed = B4800;break;
194	stargo	545	#endif
195			#ifdef B9600
196	n-ki	569	case 9600: speed = B9600;break;
197	stargo	545	#endif
198			#ifdef B19200
199	n-ki	569	case 19200: speed = B19200;break;
200	stargo	545	#endif
201			#ifdef B38400
202	n-ki	569	case 38400: speed = B38400;break;
203	stargo	545	#endif
204			#ifdef B57600
205	n-ki	569	case 57600: speed = B57600;break;
206	stargo	545	#endif
207			#ifdef B115200
208	n-ki	569	case 115200: speed = B115200;break;
209	stargo	545	#endif
210	n-ki	569	default: speed = B0;break;
211	matthewc	432	}
212
213			/* on systems with separate ispeed and ospeed, we can remember the speed
214			in ispeed while changing DTR with ospeed */
215			cfsetispeed(&termios, speed);
216			cfsetospeed(&termios, dtr ? speed : 0);
217
218	astrand	435	termios.c_cflag &= ~(CSTOPB \| PARENB \| PARODD \| CSIZE);
219	matthewc	432	switch (stop_bits)
220			{
221			case STOP_BITS_2:
222			termios.c_cflag \|= CSTOPB;
223			break;
224			}
225			switch (parity)
226			{
227			case EVEN_PARITY:
228			termios.c_cflag \|= PARENB;
229			break;
230			case ODD_PARITY:
231	astrand	435	termios.c_cflag \|= PARENB \| PARODD;
232	matthewc	432	break;
233			}
234			switch (word_length)
235			{
236	astrand	435	case 5:
237			termios.c_cflag \|= CS5;
238			break;
239			case 6:
240			termios.c_cflag \|= CS6;
241			break;
242			case 7:
243			termios.c_cflag \|= CS7;
244			break;
245			default:
246			termios.c_cflag \|= CS8;
247			break;
248	matthewc	432	}
249
250			tcsetattr(serial_fd, TCSANOW, &termios);
251			}
252
253	n-ki	569	/* Enumeration of devices from rdesktop.c */
254			/* returns numer of units found and initialized. */
255			/* optarg looks like ':com1=/dev/ttyS0' */
256			/* when it arrives to this function. */
257	n-ki	578	/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */
258	n-ki	569	int
259			serial_enum_devices(int id, char optarg)
260	matthewc	432	{
261	n-ki	569	SERIAL_DEVICE* pser_inf;
262	matthewc	432
263	n-ki	578	char *pos = optarg;
264			char *pos2;
265			int count = 0;
266	matthewc	432
267	n-ki	578	// skip the first colon
268			optarg++;
269			while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
270			{
271	n-ki	569	// Init data structures for device
272			pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE));
273			pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios));
274			pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios));
275
276	n-ki	578	pos2 = next_arg(optarg, '=');
277			strcpy(g_rdpdr_device[*id].name, optarg);
278	n-ki	569
279	n-ki	578	toupper_str(g_rdpdr_device[*id].name);
280	n-ki	569
281	n-ki	578	g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
282			strcpy(g_rdpdr_device[*id].local_path, pos2);
283			printf("SERIAL %s to %s\n", g_rdpdr_device[id].name, g_rdpdr_device[id].local_path);
284	n-ki	569	// set device type
285			g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL;
286			g_rdpdr_device[id].pdevice_data = (void ) pser_inf;
287	n-ki	578	count++;
288	n-ki	569	(*id)++;
289
290	n-ki	578	optarg = pos;
291	n-ki	569	}
292	n-ki	578	return count;
293	matthewc	432	}
294
295	n-ki	569	NTSTATUS
296			serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, uint32 flags_and_attributes, char filename, HANDLE handle)
297			{
298			HANDLE serial_fd;
299			SERIAL_DEVICE *pser_inf;
300			struct termios *ptermios;
301
302			pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data;
303			ptermios = pser_inf->ptermios;
304			serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR \| O_NOCTTY);
305
306			if (serial_fd == -1)
307			return STATUS_ACCESS_DENIED;
308
309	n-ki	578	if (!get_termios(pser_inf, serial_fd ))
310	n-ki	569	return STATUS_ACCESS_DENIED;
311
312	n-ki	578	// Store handle for later use
313	n-ki	569	g_rdpdr_device[device_id].handle = serial_fd;
314
315	n-ki	578	/* some sane information */
316			printf("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u\n",
317			g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path,
318			pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr );
319			printf("INFO: use stty to change settings\n" );
320	n-ki	569
321	n-ki	578	//tcgetattr(serial_fd, pser_inf->ptermios);
322	n-ki	569
323	n-ki	578	*handle = serial_fd;
324	n-ki	569	return STATUS_SUCCESS;
325			}
326
327	matthewc	432	static NTSTATUS
328			serial_close(HANDLE handle)
329			{
330			close(serial_fd);
331			return STATUS_SUCCESS;
332			}
333
334	n-ki	569	NTSTATUS
335			serial_read(HANDLE handle, uint8 data, uint32 length, uint32 offset, uint32 result)
336	matthewc	432	{
337	n-ki	569	long timeout;
338			SERIAL_DEVICE *pser_inf;
339			struct termios *ptermios;
340
341			timeout = 0;
342			pser_inf = get_serial_info(handle);
343			ptermios = pser_inf->ptermios;
344
345			// Set timeouts kind of like the windows serial timeout parameters. Multiply timeout
346			// with requested read size
347			if (pser_inf->read_total_timeout_multiplier \| pser_inf->read_total_timeout_constant)
348			{
349			timeout = (pser_inf->read_total_timeout_multiplier * length + pser_inf->read_total_timeout_constant + 99) / 100;
350			}
351			else if (pser_inf->read_interval_timeout)
352			{
353			timeout = (pser_inf->read_interval_timeout * length + 99) / 100;
354			}
355
356			// If a timeout is set, do a blocking read, which times out after some time.
357			// It will make rdesktop less responsive, but it will improve serial performance, by not
358			// reading one character at a time.
359			if (timeout == 0)
360			{
361			ptermios->c_cc[VTIME] = 0;
362			ptermios->c_cc[VMIN] = 0;
363			}
364			else
365			{
366			ptermios->c_cc[VTIME] = timeout;
367			ptermios->c_cc[VMIN] = 1;
368			}
369			tcsetattr(handle, TCSANOW, ptermios);
370
371			*result = read(handle, data, length);
372			return STATUS_SUCCESS;
373	matthewc	432	}
374
375	n-ki	569	NTSTATUS
376			serial_write(HANDLE handle, uint8 data, uint32 length, uint32 offset, uint32 result)
377	matthewc	432	{
378	n-ki	569	*result = write(handle, data, length);
379			return STATUS_SUCCESS;
380	matthewc	432	}
381
382			static NTSTATUS
383			serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
384			{
385			uint32 result;
386			uint8 immediate;
387
388			if ((request >> 16) != FILE_DEVICE_SERIAL_PORT)
389			return STATUS_INVALID_PARAMETER;
390
391			/* extract operation */
392			request >>= 2;
393			request &= 0xfff;
394
395			printf("SERIAL IOCTL %d\n", request);
396
397			switch (request)
398			{
399			case SERIAL_SET_BAUD_RATE:
400			in_uint32_le(in, baud_rate);
401			set_termios();
402			break;
403			case SERIAL_GET_BAUD_RATE:
404			out_uint32_le(out, baud_rate);
405			break;
406			case SERIAL_SET_QUEUE_SIZE:
407			in_uint32_le(in, queue_in_size);
408			in_uint32_le(in, queue_out_size);
409			break;
410			case SERIAL_SET_LINE_CONTROL:
411			in_uint8(in, stop_bits);
412			in_uint8(in, parity);
413			in_uint8(in, word_length);
414			set_termios();
415			break;
416			case SERIAL_GET_LINE_CONTROL:
417			out_uint8(out, stop_bits);
418			out_uint8(out, parity);
419			out_uint8(out, word_length);
420			break;
421			case SERIAL_IMMEDIATE_CHAR:
422			in_uint8(in, immediate);
423	n-ki	569	serial_write(handle, &immediate, 1, 0, &result);
424	matthewc	432	break;
425			case SERIAL_CONFIG_SIZE:
426			out_uint32_le(out, 0);
427			break;
428			case SERIAL_GET_CHARS:
429			out_uint8s(out, 6);
430			break;
431			case SERIAL_SET_CHARS:
432			in_uint8s(in, 6);
433			break;
434			case SERIAL_GET_HANDFLOW:
435			out_uint32_le(out, 0);
436	astrand	435	out_uint32_le(out, 3); /* Xon/Xoff */
437	matthewc	432	out_uint32_le(out, 0);
438			out_uint32_le(out, 0);
439			break;
440			case SERIAL_SET_HANDFLOW:
441			in_uint8s(in, 16);
442			break;
443			case SERIAL_SET_TIMEOUTS:
444			in_uint8s(in, 20);
445			break;
446			case SERIAL_GET_TIMEOUTS:
447			out_uint8s(out, 20);
448			break;
449			case SERIAL_GET_WAIT_MASK:
450			out_uint32(out, wait_mask);
451			break;
452			case SERIAL_SET_WAIT_MASK:
453			in_uint32(in, wait_mask);
454			break;
455			case SERIAL_SET_DTR:
456			dtr = 1;
457			set_termios();
458			break;
459			case SERIAL_CLR_DTR:
460			dtr = 0;
461			set_termios();
462			break;
463			#if 0
464			case SERIAL_WAIT_ON_MASK:
465			/* XXX implement me */
466			break;
467			case SERIAL_SET_BREAK_ON:
468			tcsendbreak(serial_fd, 0);
469			break;
470			case SERIAL_PURGE:
471	n-ki	569
472			printf("SERIAL_PURGE\n");
473			in_uint32(in, purge_mask);
474			if (purge_mask & 0x04) flush_mask \|= TCOFLUSH;
475			if (purge_mask & 0x08) flush_mask \|= TCIFLUSH;
476			if (flush_mask != 0) tcflush(handle, flush_mask);
477			if (purge_mask & 0x01) rdpdr_abort_io(handle, 4, STATUS_CANCELLED);
478			if (purge_mask & 0x02) rdpdr_abort_io(handle, 3, STATUS_CANCELLED);
479			break;
480
481	matthewc	432	case SERIAL_RESET_DEVICE:
482			case SERIAL_SET_BREAK_OFF:
483			case SERIAL_SET_RTS:
484			case SERIAL_CLR_RTS:
485			case SERIAL_SET_XOFF:
486			case SERIAL_SET_XON:
487			/* ignore */
488			break;
489			#endif
490
491			default:
492			unimpl("SERIAL IOCTL %d\n", request);
493			return STATUS_INVALID_PARAMETER;
494			}
495
496			return STATUS_SUCCESS;
497			}
498
499	n-ki	569	/* Read timeout for a given file descripter (device) when adding fd's to select() */
500			BOOL
501			serial_get_timeout(uint32 handle, uint32 length, uint32 timeout, uint32 itv_timeout)
502			{
503			int index;
504			SERIAL_DEVICE *pser_inf;
505
506			index = get_device_index(handle);
507
508			if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL)
509			{
510			return False;
511			}
512
513			pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
514
515			timeout = pser_inf->read_total_timeout_multiplier length + pser_inf->read_total_timeout_constant;
516			*itv_timeout = pser_inf->read_interval_timeout;
517			return True;
518			}
519
520	astrand	435	DEVICE_FNS serial_fns = {
521	matthewc	432	serial_create,
522			serial_close,
523			serial_read,
524			serial_write,
525			serial_device_control
526			};