moxa.c (fd531024bad7e5799e968ca70c0d3ca7b96b71ef) moxa.c (6e94dbc7a4e49a028b81302d755bba1a518f973b)
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 *

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1216 set_bit(LOWWAIT, &ch->statusflags);
1217 return len;
1218}
1219
1220static int moxa_write_room(struct tty_struct *tty)
1221{
1222 struct moxa_port *ch;
1223
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 *

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1216 set_bit(LOWWAIT, &ch->statusflags);
1217 return len;
1218}
1219
1220static int moxa_write_room(struct tty_struct *tty)
1221{
1222 struct moxa_port *ch;
1223
1224 if (tty->stopped)
1224 if (tty->flow.stopped)
1225 return 0;
1226 ch = tty->driver_data;
1227 if (ch == NULL)
1228 return 0;
1229 return MoxaPortTxFree(ch);
1230}
1231
1232static void moxa_flush_buffer(struct tty_struct *tty)

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1369 u16 intr;
1370
1371 if (tty) {
1372 if (test_bit(EMPTYWAIT, &p->statusflags) &&
1373 MoxaPortTxQueue(p) == 0) {
1374 clear_bit(EMPTYWAIT, &p->statusflags);
1375 tty_wakeup(tty);
1376 }
1225 return 0;
1226 ch = tty->driver_data;
1227 if (ch == NULL)
1228 return 0;
1229 return MoxaPortTxFree(ch);
1230}
1231
1232static void moxa_flush_buffer(struct tty_struct *tty)

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1369 u16 intr;
1370
1371 if (tty) {
1372 if (test_bit(EMPTYWAIT, &p->statusflags) &&
1373 MoxaPortTxQueue(p) == 0) {
1374 clear_bit(EMPTYWAIT, &p->statusflags);
1375 tty_wakeup(tty);
1376 }
1377 if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped &&
1377 if (test_bit(LOWWAIT, &p->statusflags) && !tty->flow.stopped &&
1378 MoxaPortTxQueue(p) <= WAKEUP_CHARS) {
1379 clear_bit(LOWWAIT, &p->statusflags);
1380 tty_wakeup(tty);
1381 }
1382
1383 if (inited && !tty_throttled(tty) &&
1384 MoxaPortRxQueue(p) > 0) { /* RX */
1385 MoxaPortReadData(p);

--- 712 unchanged lines hidden --- 		1378 MoxaPortTxQueue(p) <= WAKEUP_CHARS) {
1379 clear_bit(LOWWAIT, &p->statusflags);
1380 tty_wakeup(tty);
1381 }
1382
1383 if (inited && !tty_throttled(tty) &&
1384 MoxaPortRxQueue(p) > 0) { /* RX */
1385 MoxaPortReadData(p);

--- 712 unchanged lines hidden ---