moxa.c (b300fb26c59a749bf49559932fa8a85eb916b5a7) moxa.c (5d420399073770134d2b03e004b2c0201c7fa26f)
1// SPDX-License-Identifier: GPL-2.0+
2/*****************************************************************************/
3/*
4 * moxa.c -- MOXA Intellio family multiport serial driver.
5 *
6 * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com).
7 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
8 *

--- 488 unchanged lines hidden (view full) ---

497static void moxa_hangup(struct tty_struct *);
498static int moxa_tiocmget(struct tty_struct *tty);
499static int moxa_tiocmset(struct tty_struct *tty,
500 unsigned int set, unsigned int clear);
501static void moxa_poll(struct timer_list *);
502static void moxa_set_tty_param(struct tty_struct *, const struct ktermios *);
503static void moxa_shutdown(struct tty_port *);
504static bool moxa_carrier_raised(struct tty_port *);
1// SPDX-License-Identifier: GPL-2.0+
2/*****************************************************************************/
3/*
4 * moxa.c -- MOXA Intellio family multiport serial driver.
5 *
6 * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com).
7 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
8 *

--- 488 unchanged lines hidden (view full) ---

497static void moxa_hangup(struct tty_struct *);
498static int moxa_tiocmget(struct tty_struct *tty);
499static int moxa_tiocmset(struct tty_struct *tty,
500 unsigned int set, unsigned int clear);
501static void moxa_poll(struct timer_list *);
502static void moxa_set_tty_param(struct tty_struct *, const struct ktermios *);
503static void moxa_shutdown(struct tty_port *);
504static bool moxa_carrier_raised(struct tty_port *);
505static void moxa_dtr_rts(struct tty_port *, int);
505static void moxa_dtr_rts(struct tty_port *, bool);
506/*
507 * moxa board interface functions:
508 */
509static void MoxaPortEnable(struct moxa_port *);
510static void MoxaPortDisable(struct moxa_port *);
511static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t);
506/*
507 * moxa board interface functions:
508 */
509static void MoxaPortEnable(struct moxa_port *);
510static void MoxaPortDisable(struct moxa_port *);
511static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t);
512static int MoxaPortGetLineOut(struct moxa_port *, int *, int *);
513static void MoxaPortLineCtrl(struct moxa_port *, int, int);
512static int MoxaPortGetLineOut(struct moxa_port *, bool *, bool *);
513static void MoxaPortLineCtrl(struct moxa_port *, bool, bool);
514static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int);
515static int MoxaPortLineStatus(struct moxa_port *);
516static void MoxaPortFlushData(struct moxa_port *, int);
517static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int);
518static int MoxaPortReadData(struct moxa_port *);
519static unsigned int MoxaPortTxQueue(struct moxa_port *);
520static int MoxaPortRxQueue(struct moxa_port *);
521static unsigned int MoxaPortTxFree(struct moxa_port *);

--- 916 unchanged lines hidden (view full) ---

1438 int dcd;
1439
1440 spin_lock_irq(&port->lock);
1441 dcd = ch->DCDState;
1442 spin_unlock_irq(&port->lock);
1443 return dcd;
1444}
1445
514static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int);
515static int MoxaPortLineStatus(struct moxa_port *);
516static void MoxaPortFlushData(struct moxa_port *, int);
517static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int);
518static int MoxaPortReadData(struct moxa_port *);
519static unsigned int MoxaPortTxQueue(struct moxa_port *);
520static int MoxaPortRxQueue(struct moxa_port *);
521static unsigned int MoxaPortTxFree(struct moxa_port *);

--- 916 unchanged lines hidden (view full) ---

1438 int dcd;
1439
1440 spin_lock_irq(&port->lock);
1441 dcd = ch->DCDState;
1442 spin_unlock_irq(&port->lock);
1443 return dcd;
1444}
1445
1446static void moxa_dtr_rts(struct tty_port *port, int onoff)
1446static void moxa_dtr_rts(struct tty_port *port, bool onoff)
1447{
1448 struct moxa_port *ch = container_of(port, struct moxa_port, port);
1449 MoxaPortLineCtrl(ch, onoff, onoff);
1450}
1451
1452
1453static int moxa_open(struct tty_struct *tty, struct file *filp)
1454{

--- 21 unchanged lines hidden (view full) ---

1476 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
1477 ch->port.count++;
1478 tty->driver_data = ch;
1479 tty_port_tty_set(&ch->port, tty);
1480 mutex_lock(&ch->port.mutex);
1481 if (!tty_port_initialized(&ch->port)) {
1482 ch->statusflags = 0;
1483 moxa_set_tty_param(tty, &tty->termios);
1447{
1448 struct moxa_port *ch = container_of(port, struct moxa_port, port);
1449 MoxaPortLineCtrl(ch, onoff, onoff);
1450}
1451
1452
1453static int moxa_open(struct tty_struct *tty, struct file *filp)
1454{

--- 21 unchanged lines hidden (view full) ---

1476 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
1477 ch->port.count++;
1478 tty->driver_data = ch;
1479 tty_port_tty_set(&ch->port, tty);
1480 mutex_lock(&ch->port.mutex);
1481 if (!tty_port_initialized(&ch->port)) {
1482 ch->statusflags = 0;
1483 moxa_set_tty_param(tty, &tty->termios);
1484 MoxaPortLineCtrl(ch, 1, 1);
1484 MoxaPortLineCtrl(ch, true, true);
1485 MoxaPortEnable(ch);
1486 MoxaSetFifo(ch, ch->type == PORT_16550A);
1487 tty_port_set_initialized(&ch->port, true);
1488 }
1489 mutex_unlock(&ch->port.mutex);
1490 mutex_unlock(&moxa_openlock);
1491
1492 return tty_port_block_til_ready(&ch->port, tty, filp);

--- 59 unchanged lines hidden (view full) ---

1552 */
1553 set_bit(EMPTYWAIT, &ch->statusflags);
1554 return chars;
1555}
1556
1557static int moxa_tiocmget(struct tty_struct *tty)
1558{
1559 struct moxa_port *ch = tty->driver_data;
1485 MoxaPortEnable(ch);
1486 MoxaSetFifo(ch, ch->type == PORT_16550A);
1487 tty_port_set_initialized(&ch->port, true);
1488 }
1489 mutex_unlock(&ch->port.mutex);
1490 mutex_unlock(&moxa_openlock);
1491
1492 return tty_port_block_til_ready(&ch->port, tty, filp);

--- 59 unchanged lines hidden (view full) ---

1552 */
1553 set_bit(EMPTYWAIT, &ch->statusflags);
1554 return chars;
1555}
1556
1557static int moxa_tiocmget(struct tty_struct *tty)
1558{
1559 struct moxa_port *ch = tty->driver_data;
1560 int flag = 0, dtr, rts;
1560 bool dtr, rts;
1561 int flag = 0;
1562 int status;
1561
1562 MoxaPortGetLineOut(ch, &dtr, &rts);
1563 if (dtr)
1564 flag |= TIOCM_DTR;
1565 if (rts)
1566 flag |= TIOCM_RTS;
1563
1564 MoxaPortGetLineOut(ch, &dtr, &rts);
1565 if (dtr)
1566 flag |= TIOCM_DTR;
1567 if (rts)
1568 flag |= TIOCM_RTS;
1567 dtr = MoxaPortLineStatus(ch);
1568 if (dtr & 1)
1569 status = MoxaPortLineStatus(ch);
1570 if (status & 1)
1569 flag |= TIOCM_CTS;
1571 flag |= TIOCM_CTS;
1570 if (dtr & 2)
1572 if (status & 2)
1571 flag |= TIOCM_DSR;
1573 flag |= TIOCM_DSR;
1572 if (dtr & 4)
1574 if (status & 4)
1573 flag |= TIOCM_CD;
1574 return flag;
1575}
1576
1577static int moxa_tiocmset(struct tty_struct *tty,
1578 unsigned int set, unsigned int clear)
1579{
1580 struct moxa_port *ch;
1575 flag |= TIOCM_CD;
1576 return flag;
1577}
1578
1579static int moxa_tiocmset(struct tty_struct *tty,
1580 unsigned int set, unsigned int clear)
1581{
1582 struct moxa_port *ch;
1581 int dtr, rts;
1583 bool dtr, rts;
1582
1583 mutex_lock(&moxa_openlock);
1584 ch = tty->driver_data;
1585 if (!ch) {
1586 mutex_unlock(&moxa_openlock);
1587 return -EINVAL;
1588 }
1589
1590 MoxaPortGetLineOut(ch, &dtr, &rts);
1591 if (set & TIOCM_RTS)
1584
1585 mutex_lock(&moxa_openlock);
1586 ch = tty->driver_data;
1587 if (!ch) {
1588 mutex_unlock(&moxa_openlock);
1589 return -EINVAL;
1590 }
1591
1592 MoxaPortGetLineOut(ch, &dtr, &rts);
1593 if (set & TIOCM_RTS)
1592 rts = 1;
1594 rts = true;
1593 if (set & TIOCM_DTR)
1595 if (set & TIOCM_DTR)
1594 dtr = 1;
1596 dtr = true;
1595 if (clear & TIOCM_RTS)
1597 if (clear & TIOCM_RTS)
1596 rts = 0;
1598 rts = false;
1597 if (clear & TIOCM_DTR)
1599 if (clear & TIOCM_DTR)
1598 dtr = 0;
1600 dtr = false;
1599 MoxaPortLineCtrl(ch, dtr, rts);
1600 mutex_unlock(&moxa_openlock);
1601 return 0;
1602}
1603
1604static void moxa_set_termios(struct tty_struct *tty,
1605 const struct ktermios *old_termios)
1606{

--- 265 unchanged lines hidden (view full) ---

1872 * speed_t baud : baud rate
1873 *
1874 * return: -1 : this port is invalid or termio == NULL
1875 * 0 : setting O.K.
1876 *
1877 *
1878 * Function 13: Get the DTR/RTS state of this port.
1879 * Syntax:
1601 MoxaPortLineCtrl(ch, dtr, rts);
1602 mutex_unlock(&moxa_openlock);
1603 return 0;
1604}
1605
1606static void moxa_set_termios(struct tty_struct *tty,
1607 const struct ktermios *old_termios)
1608{

--- 265 unchanged lines hidden (view full) ---

1874 * speed_t baud : baud rate
1875 *
1876 * return: -1 : this port is invalid or termio == NULL
1877 * 0 : setting O.K.
1878 *
1879 *
1880 * Function 13: Get the DTR/RTS state of this port.
1881 * Syntax:
1880 * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
1882 * int MoxaPortGetLineOut(int port, bool *dtrState, bool *rtsState);
1881 * int port : port number (0 - 127)
1883 * int port : port number (0 - 127)
1882 * int * dtrState : pointer to INT to receive the current DTR
1884 * bool * dtrState : pointer to bool to receive the current DTR
1883 * state. (if NULL, this function will not
1884 * write to this address)
1885 * state. (if NULL, this function will not
1886 * write to this address)
1885 * int * rtsState : pointer to INT to receive the current RTS
1887 * bool * rtsState : pointer to bool to receive the current RTS
1886 * state. (if NULL, this function will not
1887 * write to this address)
1888 *
1889 * return: -1 : this port is invalid
1890 * 0 : O.K.
1891 *
1892 *
1893 * Function 14: Setting the DTR/RTS output state of this port.
1894 * Syntax:
1888 * state. (if NULL, this function will not
1889 * write to this address)
1890 *
1891 * return: -1 : this port is invalid
1892 * 0 : O.K.
1893 *
1894 *
1895 * Function 14: Setting the DTR/RTS output state of this port.
1896 * Syntax:
1895 * void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
1897 * void MoxaPortLineCtrl(int port, bool dtrState, bool rtsState);
1896 * int port : port number (0 - 127)
1898 * int port : port number (0 - 127)
1897 * int dtrState : DTR output state (0: off, 1: on)
1898 * int rtsState : RTS output state (0: off, 1: on)
1899 * bool dtrState : DTR output state
1900 * bool rtsState : RTS output state
1899 *
1900 *
1901 * Function 15: Setting the flow control of this port.
1902 * Syntax:
1903 * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
1904 * int txFlow,int xany);
1905 * int port : port number (0 - 127)
1906 * int rtsFlow : H/W RTS flow control (0: no, 1: yes)

--- 191 unchanged lines hidden (view full) ---

2098 writeb(FC_SetXonXoff, ofsAddr + FuncCode);
2099 moxa_wait_finish(ofsAddr);
2100 spin_unlock_irq(&moxafunc_lock);
2101
2102 }
2103 return baud;
2104}
2105
1901 *
1902 *
1903 * Function 15: Setting the flow control of this port.
1904 * Syntax:
1905 * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
1906 * int txFlow,int xany);
1907 * int port : port number (0 - 127)
1908 * int rtsFlow : H/W RTS flow control (0: no, 1: yes)

--- 191 unchanged lines hidden (view full) ---

2100 writeb(FC_SetXonXoff, ofsAddr + FuncCode);
2101 moxa_wait_finish(ofsAddr);
2102 spin_unlock_irq(&moxafunc_lock);
2103
2104 }
2105 return baud;
2106}
2107
2106static int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState,
2107 int *rtsState)
2108static int MoxaPortGetLineOut(struct moxa_port *port, bool *dtrState,
2109 bool *rtsState)
2108{
2109 if (dtrState)
2110{
2111 if (dtrState)
2110 *dtrState = !!(port->lineCtrl & DTR_ON);
2112 *dtrState = port->lineCtrl & DTR_ON;
2111 if (rtsState)
2113 if (rtsState)
2112 *rtsState = !!(port->lineCtrl & RTS_ON);
2114 *rtsState = port->lineCtrl & RTS_ON;
2113
2114 return 0;
2115}
2116
2115
2116 return 0;
2117}
2118
2117static void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts)
2119static void MoxaPortLineCtrl(struct moxa_port *port, bool dtr, bool rts)
2118{
2119 u8 mode = 0;
2120
2121 if (dtr)
2122 mode |= DTR_ON;
2123 if (rts)
2124 mode |= RTS_ON;
2125 port->lineCtrl = mode;

--- 273 unchanged lines hidden --- 		2120{
2121 u8 mode = 0;
2122
2123 if (dtr)
2124 mode |= DTR_ON;
2125 if (rts)
2126 mode |= RTS_ON;
2127 port->lineCtrl = mode;

--- 273 unchanged lines hidden ---