rdesktop/trunk/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[];

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(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
{
        speed_t speed;

        struct termios *ptermios;

        ptermios = pser_inf->ptermios;


        switch (pser_inf->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(pser_inf->ptermios, speed);
        cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0);

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

        tcsetattr(serial_fd, TCSANOW, ptermios);
}

/* 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)
        {
                perror("open");
                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");

/*      ptermios->c_cflag = B115200 | CRTSCTS | CS8 | CLOCAL | CREAD;
        ptermios->c_cflag |= CREAD;
        ptermios->c_lflag |= ICANON;
        ptermios->c_iflag = IGNPAR | ICRNL;

        tcsetattr(serial_fd, TCSANOW, ptermios);
*/

        *handle = serial_fd;

        /* all read and writes should be non blocking */
        if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1)
                perror("fcntl");

        return STATUS_SUCCESS;
}

static NTSTATUS
serial_close(HANDLE handle)
{
        g_rdpdr_device[get_device_index(handle)].handle = 0;
        close(handle);
        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 = 90;
        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;
        SERIAL_DEVICE *pser_inf;
        struct termios *ptermios;

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

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

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

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

        switch (request)
        {
                case SERIAL_SET_BAUD_RATE:
                        in_uint32_le(in, pser_inf->baud_rate);
                        set_termios(pser_inf, handle);
                        break;
                case SERIAL_GET_BAUD_RATE:
                        out_uint32_le(out, pser_inf->baud_rate);
                        break;
                case SERIAL_SET_QUEUE_SIZE:
                        in_uint32_le(in, pser_inf->queue_in_size);
                        in_uint32_le(in, pser_inf->queue_out_size);
                        break;
                case SERIAL_SET_LINE_CONTROL:
                        in_uint8(in, pser_inf->stop_bits);
                        in_uint8(in, pser_inf->parity);
                        in_uint8(in, pser_inf->word_length);
                        set_termios(pser_inf, handle);
                        break;
                case SERIAL_GET_LINE_CONTROL:
                        out_uint8(out, pser_inf->stop_bits);
                        out_uint8(out, pser_inf->parity);
                        out_uint8(out, pser_inf->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, pser_inf->wait_mask);
                        break;
                case SERIAL_SET_WAIT_MASK:
                        in_uint32(in, pser_inf->wait_mask);
                        break;
                case SERIAL_SET_DTR:
                        pser_inf->dtr = 1;
                        set_termios(pser_inf, handle);
                        break;
                case SERIAL_CLR_DTR:
                        pser_inf->dtr = 0;
                        set_termios(pser_inf, handle);
                        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(HANDLE 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	astrand	580	extern RDPDR_DEVICE g_rdpdr_device[];
57	n-ki	569
58	n-ki	588	SERIAL_DEVICE *
59			get_serial_info(HANDLE handle)
60	matthewc	432	{
61	astrand	580	int index;
62	matthewc	432
63	astrand	580	for (index = 0; index < RDPDR_MAX_DEVICES; index++)
64			{
65			if (handle == g_rdpdr_device[index].handle)
66			return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
67			}
68			return NULL;
69	n-ki	569	}
70	matthewc	432
71	n-ki	569	BOOL
72	astrand	580	get_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
73	n-ki	569	{
74	astrand	580	speed_t speed;
75			struct termios *ptermios;
76	n-ki	569
77	astrand	580	ptermios = pser_inf->ptermios;
78	n-ki	569
79	astrand	580	if (tcgetattr(serial_fd, ptermios) == -1)
80			return False;
81	n-ki	569
82	astrand	580	speed = cfgetispeed(ptermios);
83			switch (speed)
84			{
85	stargo	545	#ifdef B75
86	astrand	580	case B75:
87			pser_inf->baud_rate = 75;
88			break;
89	stargo	545	#endif
90			#ifdef B110
91	astrand	580	case B110:
92			pser_inf->baud_rate = 110;
93			break;
94	stargo	545	#endif
95			#ifdef B134
96	astrand	580	case B134:
97			pser_inf->baud_rate = 134;
98			break;
99	stargo	545	#endif
100			#ifdef B150
101	astrand	580	case B150:
102			pser_inf->baud_rate = 150;
103			break;
104	stargo	545	#endif
105			#ifdef B300
106	astrand	580	case B300:
107			pser_inf->baud_rate = 300;
108			break;
109	stargo	545	#endif
110			#ifdef B600
111	astrand	580	case B600:
112			pser_inf->baud_rate = 600;
113			break;
114	stargo	545	#endif
115			#ifdef B1200
116	astrand	580	case B1200:
117			pser_inf->baud_rate = 1200;
118			break;
119	stargo	545	#endif
120			#ifdef B1800
121	astrand	580	case B1800:
122			pser_inf->baud_rate = 1800;
123			break;
124	stargo	545	#endif
125			#ifdef B2400
126	astrand	580	case B2400:
127			pser_inf->baud_rate = 2400;
128			break;
129	stargo	545	#endif
130			#ifdef B4800
131	astrand	580	case B4800:
132			pser_inf->baud_rate = 4800;
133			break;
134	stargo	545	#endif
135			#ifdef B9600
136	astrand	580	case B9600:
137			pser_inf->baud_rate = 9600;
138			break;
139	stargo	545	#endif
140			#ifdef B19200
141	astrand	580	case B19200:
142			pser_inf->baud_rate = 19200;
143			break;
144	stargo	545	#endif
145			#ifdef B38400
146	astrand	580	case B38400:
147			pser_inf->baud_rate = 38400;
148			break;
149	stargo	545	#endif
150			#ifdef B57600
151	astrand	580	case B57600:
152			pser_inf->baud_rate = 57600;
153			break;
154	stargo	545	#endif
155			#ifdef B115200
156	astrand	580	case B115200:
157			pser_inf->baud_rate = 115200;
158			break;
159	stargo	545	#endif
160	astrand	580	default:
161			pser_inf->baud_rate = 0;
162			break;
163			}
164	matthewc	432
165	astrand	580	speed = cfgetospeed(ptermios);
166			pser_inf->dtr = (speed == B0) ? 0 : 1;
167	matthewc	432
168	astrand	580	pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1;
169			pser_inf->parity =
170			(ptermios->
171			c_cflag & PARENB) ? ((ptermios->
172			c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY;
173			switch (ptermios->c_cflag & CSIZE)
174			{
175			case CS5:
176			pser_inf->word_length = 5;
177			break;
178			case CS6:
179			pser_inf->word_length = 6;
180			break;
181			case CS7:
182			pser_inf->word_length = 7;
183			break;
184			default:
185			pser_inf->word_length = 8;
186			break;
187			}
188	matthewc	432
189	astrand	580	return True;
190	matthewc	432	}
191
192			static void
193	n-ki	588	set_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
194	matthewc	432	{
195			speed_t speed;
196
197	n-ki	588	struct termios *ptermios;
198
199			ptermios = pser_inf->ptermios;
200
201
202			switch (pser_inf->baud_rate)
203	matthewc	432	{
204	stargo	545	#ifdef B75
205	astrand	580	case 75:
206			speed = B75;
207			break;
208	stargo	545	#endif
209			#ifdef B110
210	astrand	580	case 110:
211			speed = B110;
212			break;
213	stargo	545	#endif
214			#ifdef B134
215	astrand	580	case 134:
216			speed = B134;
217			break;
218	stargo	545	#endif
219			#ifdef B150
220	astrand	580	case 150:
221			speed = B150;
222			break;
223	stargo	545	#endif
224			#ifdef B300
225	astrand	580	case 300:
226			speed = B300;
227			break;
228	stargo	545	#endif
229			#ifdef B600
230	astrand	580	case 600:
231			speed = B600;
232			break;
233	stargo	545	#endif
234			#ifdef B1200
235	astrand	580	case 1200:
236			speed = B1200;
237			break;
238	stargo	545	#endif
239			#ifdef B1800
240	astrand	580	case 1800:
241			speed = B1800;
242			break;
243	stargo	545	#endif
244			#ifdef B2400
245	astrand	580	case 2400:
246			speed = B2400;
247			break;
248	stargo	545	#endif
249			#ifdef B4800
250	astrand	580	case 4800:
251			speed = B4800;
252			break;
253	stargo	545	#endif
254			#ifdef B9600
255	astrand	580	case 9600:
256			speed = B9600;
257			break;
258	stargo	545	#endif
259			#ifdef B19200
260	astrand	580	case 19200:
261			speed = B19200;
262			break;
263	stargo	545	#endif
264			#ifdef B38400
265	astrand	580	case 38400:
266			speed = B38400;
267			break;
268	stargo	545	#endif
269			#ifdef B57600
270	astrand	580	case 57600:
271			speed = B57600;
272			break;
273	stargo	545	#endif
274			#ifdef B115200
275	astrand	580	case 115200:
276			speed = B115200;
277			break;
278	stargo	545	#endif
279	astrand	580	default:
280			speed = B0;
281			break;
282	matthewc	432	}
283
284			/* on systems with separate ispeed and ospeed, we can remember the speed
285			in ispeed while changing DTR with ospeed */
286	n-ki	588	cfsetispeed(pser_inf->ptermios, speed);
287			cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0);
288	matthewc	432
289	n-ki	588	ptermios->c_cflag &= ~(CSTOPB \| PARENB \| PARODD \| CSIZE);
290			switch (pser_inf->stop_bits)
291	matthewc	432	{
292			case STOP_BITS_2:
293	n-ki	588	ptermios->c_cflag \|= CSTOPB;
294	matthewc	432	break;
295			}
296	n-ki	588	switch (pser_inf->parity)
297	matthewc	432	{
298			case EVEN_PARITY:
299	n-ki	588	ptermios->c_cflag \|= PARENB;
300	matthewc	432	break;
301			case ODD_PARITY:
302	n-ki	588	ptermios->c_cflag \|= PARENB \| PARODD;
303	matthewc	432	break;
304			}
305	n-ki	588	switch (pser_inf->word_length)
306	matthewc	432	{
307	astrand	435	case 5:
308	n-ki	588	ptermios->c_cflag \|= CS5;
309	astrand	435	break;
310			case 6:
311	n-ki	588	ptermios->c_cflag \|= CS6;
312	astrand	435	break;
313			case 7:
314	n-ki	588	ptermios->c_cflag \|= CS7;
315	astrand	435	break;
316			default:
317	n-ki	588	ptermios->c_cflag \|= CS8;
318	astrand	435	break;
319	matthewc	432	}
320
321	n-ki	588	tcsetattr(serial_fd, TCSANOW, ptermios);
322	matthewc	432	}
323
324	n-ki	569	/* Enumeration of devices from rdesktop.c */
325			/* returns numer of units found and initialized. */
326			/* optarg looks like ':com1=/dev/ttyS0' */
327			/* when it arrives to this function. */
328	n-ki	578	/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */
329	n-ki	569	int
330	astrand	580	serial_enum_devices(int id, char optarg)
331	matthewc	432	{
332	astrand	580	SERIAL_DEVICE *pser_inf;
333	matthewc	432
334	n-ki	578	char *pos = optarg;
335			char *pos2;
336			int count = 0;
337	matthewc	432
338	n-ki	578	// skip the first colon
339			optarg++;
340			while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
341			{
342	n-ki	569	// Init data structures for device
343			pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE));
344			pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios));
345			pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios));
346
347	n-ki	578	pos2 = next_arg(optarg, '=');
348			strcpy(g_rdpdr_device[*id].name, optarg);
349	n-ki	569
350	n-ki	578	toupper_str(g_rdpdr_device[*id].name);
351	n-ki	569
352	n-ki	578	g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
353			strcpy(g_rdpdr_device[*id].local_path, pos2);
354	astrand	580	printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name,
355			g_rdpdr_device[*id].local_path);
356	n-ki	569	// set device type
357			g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL;
358			g_rdpdr_device[id].pdevice_data = (void ) pser_inf;
359	n-ki	578	count++;
360	n-ki	569	(*id)++;
361
362	n-ki	578	optarg = pos;
363	n-ki	569	}
364	n-ki	578	return count;
365	matthewc	432	}
366
367	n-ki	569	NTSTATUS
368	astrand	580	serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition,
369			uint32 flags_and_attributes, char filename, HANDLE handle)
370	n-ki	569	{
371	astrand	580	HANDLE serial_fd;
372			SERIAL_DEVICE *pser_inf;
373			struct termios *ptermios;
374	n-ki	569
375	astrand	580	pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data;
376			ptermios = pser_inf->ptermios;
377			serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR \| O_NOCTTY);
378	n-ki	569
379	astrand	580	if (serial_fd == -1)
380	n-ki	588	{
381			perror("open");
382	astrand	580	return STATUS_ACCESS_DENIED;
383	n-ki	588	}
384	n-ki	569
385	astrand	580	if (!get_termios(pser_inf, serial_fd))
386			return STATUS_ACCESS_DENIED;
387	n-ki	569
388	n-ki	578	// Store handle for later use
389	astrand	580	g_rdpdr_device[device_id].handle = serial_fd;
390	n-ki	569
391	n-ki	578	/* some sane information */
392	astrand	580	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);
393			printf("INFO: use stty to change settings\n");
394	n-ki	569
395	n-ki	588	/* ptermios->c_cflag = B115200 \| CRTSCTS \| CS8 \| CLOCAL \| CREAD;
396			ptermios->c_cflag \|= CREAD;
397			ptermios->c_lflag \|= ICANON;
398			ptermios->c_iflag = IGNPAR \| ICRNL;
399	n-ki	569
400	n-ki	588	tcsetattr(serial_fd, TCSANOW, ptermios);
401			*/
402	n-ki	592
403	astrand	580	*handle = serial_fd;
404	n-ki	592
405			/* all read and writes should be non blocking */
406			if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1)
407			perror("fcntl");
408
409	astrand	580	return STATUS_SUCCESS;
410	n-ki	569	}
411
412	matthewc	432	static NTSTATUS
413			serial_close(HANDLE handle)
414			{
415	n-ki	588	g_rdpdr_device[get_device_index(handle)].handle = 0;
416			close(handle);
417	matthewc	432	return STATUS_SUCCESS;
418			}
419
420	n-ki	569	NTSTATUS
421	astrand	580	serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
422	matthewc	432	{
423	astrand	580	long timeout;
424			SERIAL_DEVICE *pser_inf;
425			struct termios *ptermios;
426	n-ki	569
427	n-ki	592	timeout = 90;
428	astrand	580	pser_inf = get_serial_info(handle);
429			ptermios = pser_inf->ptermios;
430	n-ki	569
431	astrand	580	// Set timeouts kind of like the windows serial timeout parameters. Multiply timeout
432			// with requested read size
433			if (pser_inf->read_total_timeout_multiplier \| pser_inf->read_total_timeout_constant)
434			{
435			timeout =
436			(pser_inf->read_total_timeout_multiplier * length +
437			pser_inf->read_total_timeout_constant + 99) / 100;
438			}
439			else if (pser_inf->read_interval_timeout)
440			{
441			timeout = (pser_inf->read_interval_timeout * length + 99) / 100;
442			}
443	n-ki	569
444	astrand	580	// If a timeout is set, do a blocking read, which times out after some time.
445			// It will make rdesktop less responsive, but it will improve serial performance, by not
446			// reading one character at a time.
447			if (timeout == 0)
448			{
449			ptermios->c_cc[VTIME] = 0;
450			ptermios->c_cc[VMIN] = 0;
451			}
452			else
453			{
454			ptermios->c_cc[VTIME] = timeout;
455			ptermios->c_cc[VMIN] = 1;
456			}
457			tcsetattr(handle, TCSANOW, ptermios);
458	n-ki	592
459
460	astrand	580	*result = read(handle, data, length);
461	n-ki	592
462	astrand	580	return STATUS_SUCCESS;
463	matthewc	432	}
464
465	n-ki	569	NTSTATUS
466	astrand	580	serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
467	matthewc	432	{
468	astrand	580	*result = write(handle, data, length);
469			return STATUS_SUCCESS;
470	matthewc	432	}
471
472			static NTSTATUS
473			serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
474			{
475			uint32 result;
476			uint8 immediate;
477	n-ki	588	SERIAL_DEVICE *pser_inf;
478			struct termios *ptermios;
479	matthewc	432
480			if ((request >> 16) != FILE_DEVICE_SERIAL_PORT)
481			return STATUS_INVALID_PARAMETER;
482
483	n-ki	588	pser_inf = get_serial_info(handle);
484			ptermios = pser_inf->ptermios;
485
486	matthewc	432	/* extract operation */
487			request >>= 2;
488			request &= 0xfff;
489
490			printf("SERIAL IOCTL %d\n", request);
491
492			switch (request)
493			{
494			case SERIAL_SET_BAUD_RATE:
495	n-ki	588	in_uint32_le(in, pser_inf->baud_rate);
496			set_termios(pser_inf, handle);
497	matthewc	432	break;
498			case SERIAL_GET_BAUD_RATE:
499	n-ki	588	out_uint32_le(out, pser_inf->baud_rate);
500	matthewc	432	break;
501			case SERIAL_SET_QUEUE_SIZE:
502	n-ki	588	in_uint32_le(in, pser_inf->queue_in_size);
503			in_uint32_le(in, pser_inf->queue_out_size);
504	matthewc	432	break;
505			case SERIAL_SET_LINE_CONTROL:
506	n-ki	588	in_uint8(in, pser_inf->stop_bits);
507			in_uint8(in, pser_inf->parity);
508			in_uint8(in, pser_inf->word_length);
509			set_termios(pser_inf, handle);
510	matthewc	432	break;
511			case SERIAL_GET_LINE_CONTROL:
512	n-ki	588	out_uint8(out, pser_inf->stop_bits);
513			out_uint8(out, pser_inf->parity);
514			out_uint8(out, pser_inf->word_length);
515	matthewc	432	break;
516			case SERIAL_IMMEDIATE_CHAR:
517			in_uint8(in, immediate);
518	n-ki	569	serial_write(handle, &immediate, 1, 0, &result);
519	matthewc	432	break;
520			case SERIAL_CONFIG_SIZE:
521			out_uint32_le(out, 0);
522			break;
523			case SERIAL_GET_CHARS:
524			out_uint8s(out, 6);
525			break;
526			case SERIAL_SET_CHARS:
527			in_uint8s(in, 6);
528			break;
529			case SERIAL_GET_HANDFLOW:
530			out_uint32_le(out, 0);
531	astrand	435	out_uint32_le(out, 3); /* Xon/Xoff */
532	matthewc	432	out_uint32_le(out, 0);
533			out_uint32_le(out, 0);
534			break;
535			case SERIAL_SET_HANDFLOW:
536			in_uint8s(in, 16);
537			break;
538			case SERIAL_SET_TIMEOUTS:
539			in_uint8s(in, 20);
540			break;
541			case SERIAL_GET_TIMEOUTS:
542			out_uint8s(out, 20);
543			break;
544			case SERIAL_GET_WAIT_MASK:
545	n-ki	588	out_uint32(out, pser_inf->wait_mask);
546	matthewc	432	break;
547			case SERIAL_SET_WAIT_MASK:
548	n-ki	588	in_uint32(in, pser_inf->wait_mask);
549	matthewc	432	break;
550			case SERIAL_SET_DTR:
551	n-ki	588	pser_inf->dtr = 1;
552			set_termios(pser_inf, handle);
553	matthewc	432	break;
554			case SERIAL_CLR_DTR:
555	n-ki	588	pser_inf->dtr = 0;
556			set_termios(pser_inf, handle);
557	matthewc	432	break;
558			#if 0
559			case SERIAL_WAIT_ON_MASK:
560			/* XXX implement me */
561			break;
562			case SERIAL_SET_BREAK_ON:
563			tcsendbreak(serial_fd, 0);
564			break;
565			case SERIAL_PURGE:
566	n-ki	569
567	astrand	580	printf("SERIAL_PURGE\n");
568			in_uint32(in, purge_mask);
569			if (purge_mask & 0x04)
570			flush_mask \|= TCOFLUSH;
571			if (purge_mask & 0x08)
572			flush_mask \|= TCIFLUSH;
573			if (flush_mask != 0)
574			tcflush(handle, flush_mask);
575			if (purge_mask & 0x01)
576			rdpdr_abort_io(handle, 4, STATUS_CANCELLED);
577			if (purge_mask & 0x02)
578			rdpdr_abort_io(handle, 3, STATUS_CANCELLED);
579			break;
580	n-ki	569
581	matthewc	432	case SERIAL_RESET_DEVICE:
582			case SERIAL_SET_BREAK_OFF:
583			case SERIAL_SET_RTS:
584			case SERIAL_CLR_RTS:
585			case SERIAL_SET_XOFF:
586			case SERIAL_SET_XON:
587			/* ignore */
588			break;
589			#endif
590
591			default:
592			unimpl("SERIAL IOCTL %d\n", request);
593			return STATUS_INVALID_PARAMETER;
594			}
595
596			return STATUS_SUCCESS;
597			}
598
599	n-ki	569	/* Read timeout for a given file descripter (device) when adding fd's to select() */
600			BOOL
601	n-ki	588	serial_get_timeout(HANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_timeout)
602	n-ki	569	{
603	astrand	580	int index;
604			SERIAL_DEVICE *pser_inf;
605	n-ki	569
606	astrand	580	index = get_device_index(handle);
607	n-ki	569
608	astrand	580	if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL)
609			{
610			return False;
611			}
612	n-ki	569
613	astrand	580	pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
614	n-ki	569
615	astrand	580	*timeout =
616			pser_inf->read_total_timeout_multiplier * length +
617			pser_inf->read_total_timeout_constant;
618			*itv_timeout = pser_inf->read_interval_timeout;
619			return True;
620	n-ki	569	}
621
622	astrand	435	DEVICE_FNS serial_fns = {
623	matthewc	432	serial_create,
624			serial_close,
625			serial_read,
626			serial_write,
627			serial_device_control
628			};