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sio.c (54255) sio.c (54407)
1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: head/sys/pc98/cbus/sio.c 54255 1999-12-07 09:29:15Z kato $
33 * $FreeBSD: head/sys/pc98/cbus/sio.c 54407 1999-12-10 14:03:47Z kato $
34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91
35 * from: i386/isa sio.c,v 1.234
36 */
37
38#include "opt_comconsole.h"
39#include "opt_compat.h"
40#include "opt_ddb.h"
41#include "opt_sio.h"
34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91
35 * from: i386/isa sio.c,v 1.234
36 */
37
38#include "opt_comconsole.h"
39#include "opt_compat.h"
40#include "opt_ddb.h"
41#include "opt_sio.h"
42#include "card.h"
42#include "sio.h"
43
44/*
45 * Serial driver, based on 386BSD-0.1 com driver.
46 * Mostly rewritten to use pseudo-DMA.
47 * Works for National Semiconductor NS8250-NS16550AF UARTs.
48 * COM driver, based on HP dca driver.
49 *

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378
379 u_long bytes_in; /* statistics */
380 u_long bytes_out;
381 u_int delta_error_counts[CE_NTYPES];
382 u_long error_counts[CE_NTYPES];
383
384 struct resource *irqres;
385 struct resource *ioportres;
43#include "sio.h"
44
45/*
46 * Serial driver, based on 386BSD-0.1 com driver.
47 * Mostly rewritten to use pseudo-DMA.
48 * Works for National Semiconductor NS8250-NS16550AF UARTs.
49 * COM driver, based on HP dca driver.
50 *

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379
380 u_long bytes_in; /* statistics */
381 u_long bytes_out;
382 u_int delta_error_counts[CE_NTYPES];
383 u_long error_counts[CE_NTYPES];
384
385 struct resource *irqres;
386 struct resource *ioportres;
387 void *cookie;
386
387 /*
388 * Data area for output buffers. Someday we should build the output
389 * buffer queue without copying data.
390 */
391#ifdef PC98
392 int obufsize;
393 u_char *obuf1;

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420static void comstart __P((struct tty *tp));
421static void comstop __P((struct tty *tp, int rw));
422static timeout_t comwakeup;
423static void disc_optim __P((struct tty *tp, struct termios *t,
424 struct com_s *com));
425
426#if NCARD > 0
427static int sio_pccard_attach __P((device_t dev));
388
389 /*
390 * Data area for output buffers. Someday we should build the output
391 * buffer queue without copying data.
392 */
393#ifdef PC98
394 int obufsize;
395 u_char *obuf1;

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422static void comstart __P((struct tty *tp));
423static void comstop __P((struct tty *tp, int rw));
424static timeout_t comwakeup;
425static void disc_optim __P((struct tty *tp, struct termios *t,
426 struct com_s *com));
427
428#if NCARD > 0
429static int sio_pccard_attach __P((device_t dev));
428static void sio_pccard_detach __P((device_t dev));
430static int sio_pccard_detach __P((device_t dev));
429static int sio_pccard_probe __P((device_t dev));
430#endif /* NCARD > 0 */
431
432static char driver_name[] = "sio";
433
434/* table and macro for fast conversion from a unit number to its com struct */
435static devclass_t sio_devclass;
436#define com_addr(unit) ((struct com_s *) \

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881#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
882#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
883
884#if NCARD > 0
885static int
886sio_pccard_probe(dev)
887 device_t dev;
888{
431static int sio_pccard_probe __P((device_t dev));
432#endif /* NCARD > 0 */
433
434static char driver_name[] = "sio";
435
436/* table and macro for fast conversion from a unit number to its com struct */
437static devclass_t sio_devclass;
438#define com_addr(unit) ((struct com_s *) \

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883#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
884#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
885
886#if NCARD > 0
887static int
888sio_pccard_probe(dev)
889 device_t dev;
890{
889 /* Do not probe IRQ - pccardd has not arranged for it yet */
890 /* XXX Actually it has been asigned to you, but isn't activated */
891 /* XXX until you specifically activate the resource for your use. */
891 /* Do not probe IRQ - pccard doesn't turn on the interrupt line */
892 /* until bus_setup_intr */
892 SET_FLAG(dev, COM_C_NOPROBE);
893
894 return (sioprobe(dev));
895}
896
897static int
898sio_pccard_attach(dev)
899 device_t dev;

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914sio_pccard_detach(dev)
915 device_t dev;
916{
917 struct com_s *com;
918
919 com = (struct com_s *) device_get_softc(dev);
920 if (!com) {
921 device_printf(dev, "NULL com in siounload\n");
893 SET_FLAG(dev, COM_C_NOPROBE);
894
895 return (sioprobe(dev));
896}
897
898static int
899sio_pccard_attach(dev)
900 device_t dev;

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915sio_pccard_detach(dev)
916 device_t dev;
917{
918 struct com_s *com;
919
920 com = (struct com_s *) device_get_softc(dev);
921 if (!com) {
922 device_printf(dev, "NULL com in siounload\n");
922 return;
923 return (0);
923 }
924 if (!com->iobase) {
925 device_printf(dev, "already unloaded!\n");
924 }
925 if (!com->iobase) {
926 device_printf(dev, "already unloaded!\n");
926 return;
927 return (0);
927 }
928 }
929 com->gone = 1;
930 if (com->irqres) {
931 bus_teardown_intr(dev, com->irqres, com->cookie);
932 bus_release_resource(dev, SYS_RES_IRQ, 0, com->irqres);
933 }
934 if (com->ioportres)
935 bus_release_resource(dev, SYS_RES_IOPORT, 0, com->ioportres);
928 if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
936 if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
929 com->gone = 1;
930 device_printf(dev, "unload\n");
931 com->tp->t_gen++;
932 ttyclose(com->tp);
933 ttwakeup(com->tp);
934 ttwwakeup(com->tp);
937 device_printf(dev, "unload\n");
938 com->tp->t_gen++;
939 ttyclose(com->tp);
940 ttwakeup(com->tp);
941 ttwwakeup(com->tp);
942 device_printf(dev, "Was busy, so crash likely\n");
935 } else {
936 if (com->ibuf != NULL)
937 free(com->ibuf, M_DEVBUF);
943 } else {
944 if (com->ibuf != NULL)
945 free(com->ibuf, M_DEVBUF);
938 free(com, M_DEVBUF);
939 device_printf(dev, "unload,gone\n");
946 device_printf(dev, "unload, gone\n");
940 }
941 return (0);
942}
943#endif /* NCARD > 0 */
944
945
946static struct isa_pnp_id sio_ids[] = {
947 {0x0005d041, "Standard PC COM port"}, /* PNP0500 */

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1552 device_t dev;
1553{
1554 struct com_s *com;
1555#ifdef COM_ESP
1556 Port_t *espp;
1557#endif
1558 Port_t iobase;
1559 int unit;
947 }
948 return (0);
949}
950#endif /* NCARD > 0 */
951
952
953static struct isa_pnp_id sio_ids[] = {
954 {0x0005d041, "Standard PC COM port"}, /* PNP0500 */

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1559 device_t dev;
1560{
1561 struct com_s *com;
1562#ifdef COM_ESP
1563 Port_t *espp;
1564#endif
1565 Port_t iobase;
1566 int unit;
1560 void *ih;
1561 u_int flags;
1562 int rid;
1563 struct resource *port;
1564 int ret;
1565#ifdef PC98
1566 int port_shift = 0;
1567 u_char *obuf;
1568 u_long obufsize;

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1913 pps_init(&com->pps);
1914
1915 rid = 0;
1916 com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1,
1917 RF_ACTIVE);
1918 if (com->irqres) {
1919 ret = BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
1920 INTR_TYPE_TTY | INTR_TYPE_FAST,
1567 u_int flags;
1568 int rid;
1569 struct resource *port;
1570 int ret;
1571#ifdef PC98
1572 int port_shift = 0;
1573 u_char *obuf;
1574 u_long obufsize;

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1919 pps_init(&com->pps);
1920
1921 rid = 0;
1922 com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1,
1923 RF_ACTIVE);
1924 if (com->irqres) {
1925 ret = BUS_SETUP_INTR(device_get_parent(dev), dev, com->irqres,
1926 INTR_TYPE_TTY | INTR_TYPE_FAST,
1921 siointr, com, &ih);
1927 siointr, com, &com->cookie);
1922 if (ret) {
1923 ret = BUS_SETUP_INTR(device_get_parent(dev), dev,
1924 com->irqres, INTR_TYPE_TTY,
1928 if (ret) {
1929 ret = BUS_SETUP_INTR(device_get_parent(dev), dev,
1930 com->irqres, INTR_TYPE_TTY,
1925 siointr, com, &ih);
1931 siointr, com, &com->cookie);
1926 if (ret == 0)
1927 device_printf(dev, "unable to activate interrupt in fast mode - using normal mode");
1928 }
1929 if (ret)
1930 device_printf(dev, "could not activate interrupt\n");
1931 }
1932
1933 return (0);

--- 3158 unchanged lines hidden --- 		1932 if (ret == 0)
1933 device_printf(dev, "unable to activate interrupt in fast mode - using normal mode");
1934 }
1935 if (ret)
1936 device_printf(dev, "could not activate interrupt\n");
1937 }
1938
1939 return (0);

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