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sio.c (46792) sio.c (46871)
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

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

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

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

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 * $Id: sio.c,v 1.92 1999/05/09 05:00:54 kato Exp $
33 * $Id: sio.c,v 1.93 1999/05/09 13:00:48 phk Exp $
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_devfs.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_devfs.h"
42/* #include "opt_sio.h" */
42#include "opt_sio.h"
43#include "sio.h"
44/* #include "pnp.h" */
45#define NPNP 0
46
47/*
48 * Serial driver, based on 386BSD-0.1 com driver.
49 * Mostly rewritten to use pseudo-DMA.
50 * Works for National Semiconductor NS8250-NS16550AF UARTs.

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

424 void *devfs_token_ttyi;
425 void *devfs_token_cuaa;
426 void *devfs_token_cual;
427 void *devfs_token_cuai;
428#endif
429};
430
431#ifdef COM_ESP
43#include "sio.h"
44/* #include "pnp.h" */
45#define NPNP 0
46
47/*
48 * Serial driver, based on 386BSD-0.1 com driver.
49 * Mostly rewritten to use pseudo-DMA.
50 * Works for National Semiconductor NS8250-NS16550AF UARTs.

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

424 void *devfs_token_ttyi;
425 void *devfs_token_cuaa;
426 void *devfs_token_cual;
427 void *devfs_token_cuai;
428#endif
429};
430
431#ifdef COM_ESP
432static int espattach __P((struct isa_device *isdp, struct com_s *com,
433 Port_t esp_port));
432static int espattach __P((struct com_s *com, Port_t esp_port));
434#endif
435static int sioattach __P((device_t dev));
436
437static timeout_t siobusycheck;
438static timeout_t siodtrwakeup;
439static void comhardclose __P((struct com_s *com));
440static void sioinput __P((struct com_s *com));
441static void siointr1 __P((struct com_s *com));

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

940 if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
941 com->gone = 1;
942 printf("sio%d: unload\n", devi->isahd.id_unit);
943 com->tp->t_gen++;
944 ttyclose(com->tp);
945 ttwakeup(com->tp);
946 ttwwakeup(com->tp);
947 } else {
433#endif
434static int sioattach __P((device_t dev));
435
436static timeout_t siobusycheck;
437static timeout_t siodtrwakeup;
438static void comhardclose __P((struct com_s *com));
439static void sioinput __P((struct com_s *com));
440static void siointr1 __P((struct com_s *com));

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

939 if (com->tp && (com->tp->t_state & TS_ISOPEN)) {
940 com->gone = 1;
941 printf("sio%d: unload\n", devi->isahd.id_unit);
942 com->tp->t_gen++;
943 ttyclose(com->tp);
944 ttwakeup(com->tp);
945 ttwwakeup(com->tp);
946 } else {
948 com_addr(com->unit) = NULL;
949 if (com->ibuf != NULL)
950 free(com->ibuf, M_DEVBUF);
951 free(com, M_DEVBUF);
952 printf("sio%d: unload,gone\n", devi->isahd.id_unit);
953 }
954}
955
956/*

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1424 }
1425 break;
1426 }
1427 return (iobase == siocniobase ? 0 : result);
1428}
1429
1430#ifdef COM_ESP
1431static int
947 if (com->ibuf != NULL)
948 free(com->ibuf, M_DEVBUF);
949 free(com, M_DEVBUF);
950 printf("sio%d: unload,gone\n", devi->isahd.id_unit);
951 }
952}
953
954/*

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

1422 }
1423 break;
1424 }
1425 return (iobase == siocniobase ? 0 : result);
1426}
1427
1428#ifdef COM_ESP
1429static int
1432espattach(isdp, com, esp_port)
1433 struct isa_device *isdp;
1430espattach(com, esp_port)
1434 struct com_s *com;
1435 Port_t esp_port;
1436{
1437 u_char dips;
1438 u_char val;
1439
1440 /*
1441 * Check the ESP-specific I/O port to see if we're an ESP

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

1512sioattach(dev)
1513 device_t dev;
1514{
1515 struct com_s *com;
1516#ifdef COM_ESP
1517 Port_t *espp;
1518#endif
1519 Port_t iobase;
1431 struct com_s *com;
1432 Port_t esp_port;
1433{
1434 u_char dips;
1435 u_char val;
1436
1437 /*
1438 * Check the ESP-specific I/O port to see if we're an ESP

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

1509sioattach(dev)
1510 device_t dev;
1511{
1512 struct com_s *com;
1513#ifdef COM_ESP
1514 Port_t *espp;
1515#endif
1516 Port_t iobase;
1520#if 0
1521 int s;
1522#endif
1523 int unit;
1524 void *ih;
1525 struct resource *res;
1526 int zero = 0;
1527 u_int flags = isa_get_flags(dev);
1528#ifdef PC98
1529 int port_shift = 0;
1530 u_char *obuf;
1531 u_long obufsize;
1532#endif
1533
1517 int unit;
1518 void *ih;
1519 struct resource *res;
1520 int zero = 0;
1521 u_int flags = isa_get_flags(dev);
1522#ifdef PC98
1523 int port_shift = 0;
1524 u_char *obuf;
1525 u_long obufsize;
1526#endif
1527
1534#if 0
1535 isdp->id_ri_flags |= RI_FAST;
1536#endif
1537 iobase = isa_get_port(dev);
1538#ifdef PC98
1539 if (((flags >> 24) & 0xff) == COM_IF_RSA98III)
1540 iobase += 8;
1541#endif
1542 unit = device_get_unit(dev);
1543 com = device_get_softc(dev);
1544#ifdef PC98

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

1713 }
1714#endif
1715
1716#ifdef COM_ESP
1717#ifdef PC98
1718 if (com->pc98_if_type == COM_IF_ESP98)
1719#endif
1720 for (espp = likely_esp_ports; *espp != 0; espp++)
1528 iobase = isa_get_port(dev);
1529#ifdef PC98
1530 if (((flags >> 24) & 0xff) == COM_IF_RSA98III)
1531 iobase += 8;
1532#endif
1533 unit = device_get_unit(dev);
1534 com = device_get_softc(dev);
1535#ifdef PC98

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1704 }
1705#endif
1706
1707#ifdef COM_ESP
1708#ifdef PC98
1709 if (com->pc98_if_type == COM_IF_ESP98)
1710#endif
1711 for (espp = likely_esp_ports; *espp != 0; espp++)
1721 if (espattach(dev, com, *espp)) {
1712 if (espattach(com, *espp)) {
1722 com->tx_fifo_size = 1024;
1723 break;
1724 }
1725#endif
1726 if (!com->st16650a) {
1727 if (!com->tx_fifo_size)
1728 com->tx_fifo_size = 16;
1729 else

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

1819 }
1820#endif
1821 if (unit == comconsole)
1822 printf(", console");
1823 if ( COM_IIR_TXRDYBUG(flags) )
1824 printf(" with a bogus IIR_TXRDY register");
1825 printf("\n");
1826
1713 com->tx_fifo_size = 1024;
1714 break;
1715 }
1716#endif
1717 if (!com->st16650a) {
1718 if (!com->tx_fifo_size)
1719 com->tx_fifo_size = 16;
1720 else

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

1810 }
1811#endif
1812 if (unit == comconsole)
1813 printf(", console");
1814 if ( COM_IIR_TXRDYBUG(flags) )
1815 printf(" with a bogus IIR_TXRDY register");
1816 printf("\n");
1817
1827#if 0
1828 s = spltty();
1829 com_addr(unit) = com;
1830 splx(s);
1831#endif
1832
1833 if (!sio_registered) {
1834 register_swi(SWI_TTY, siopoll);
1835 sio_registered = TRUE;
1836 }
1837#ifdef DEVFS
1838 com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
1839 unit, DV_CHR,
1840 UID_ROOT, GID_WHEEL, 0600, "ttyd%r", unit);

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

2138 siostop(tp, FREAD | FWRITE);
2139 comhardclose(com);
2140 ttyclose(tp);
2141 siosettimeout();
2142 splx(s);
2143 if (com->gone) {
2144 printf("sio%d: gone\n", com->unit);
2145 s = spltty();
1818 if (!sio_registered) {
1819 register_swi(SWI_TTY, siopoll);
1820 sio_registered = TRUE;
1821 }
1822#ifdef DEVFS
1823 com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
1824 unit, DV_CHR,
1825 UID_ROOT, GID_WHEEL, 0600, "ttyd%r", unit);

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

2123 siostop(tp, FREAD | FWRITE);
2124 comhardclose(com);
2125 ttyclose(tp);
2126 siosettimeout();
2127 splx(s);
2128 if (com->gone) {
2129 printf("sio%d: gone\n", com->unit);
2130 s = spltty();
2146#if 0
2147 com_addr(com->unit) = NULL;
2148#endif
2149 if (com->ibuf != NULL)
2150 free(com->ibuf, M_DEVBUF);
2151 bzero(tp, sizeof *tp);
2152 free(com, M_DEVBUF);
2153 splx(s);
2154 }
2155 return (0);
2156}

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

2260
2261static int
2262sioread(dev, uio, flag)
2263 dev_t dev;
2264 struct uio *uio;
2265 int flag;
2266{
2267 int mynor;
2131 if (com->ibuf != NULL)
2132 free(com->ibuf, M_DEVBUF);
2133 bzero(tp, sizeof *tp);
2134 free(com, M_DEVBUF);
2135 splx(s);
2136 }
2137 return (0);
2138}

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

2242
2243static int
2244sioread(dev, uio, flag)
2245 dev_t dev;
2246 struct uio *uio;
2247 int flag;
2248{
2249 int mynor;
2268 int unit;
2269 struct tty *tp;
2250 struct com_s *com;
2270
2271 mynor = minor(dev);
2272 if (mynor & CONTROL_MASK)
2273 return (ENODEV);
2251
2252 mynor = minor(dev);
2253 if (mynor & CONTROL_MASK)
2254 return (ENODEV);
2274 unit = MINOR_TO_UNIT(mynor);
2275 if (com_addr(unit)->gone)
2255 com = com_addr(MINOR_TO_UNIT(mynor));
2256 if (com->gone)
2276 return (ENODEV);
2257 return (ENODEV);
2277 tp = com_addr(unit)->tp;
2278 return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
2258 return ((*linesw[com->tp->t_line].l_read)(com->tp, uio, flag));
2279}
2280
2281static int
2282siowrite(dev, uio, flag)
2283 dev_t dev;
2284 struct uio *uio;
2285 int flag;
2286{
2287 int mynor;
2259}
2260
2261static int
2262siowrite(dev, uio, flag)
2263 dev_t dev;
2264 struct uio *uio;
2265 int flag;
2266{
2267 int mynor;
2288 struct tty *tp;
2268 struct com_s *com;
2289 int unit;
2290
2291 mynor = minor(dev);
2292 if (mynor & CONTROL_MASK)
2293 return (ENODEV);
2294
2295 unit = MINOR_TO_UNIT(mynor);
2269 int unit;
2270
2271 mynor = minor(dev);
2272 if (mynor & CONTROL_MASK)
2273 return (ENODEV);
2274
2275 unit = MINOR_TO_UNIT(mynor);
2296 if (com_addr(unit)->gone)
2276 com = com_addr(unit);
2277 if (com->gone)
2297 return (ENODEV);
2278 return (ENODEV);
2298 tp = com_addr(unit)->tp;
2299 /*
2300 * (XXX) We disallow virtual consoles if the physical console is
2301 * a serial port. This is in case there is a display attached that
2302 * is not the console. In that situation we don't need/want the X
2303 * server taking over the console.
2304 */
2305 if (constty != NULL && unit == comconsole)
2306 constty = NULL;
2279 /*
2280 * (XXX) We disallow virtual consoles if the physical console is
2281 * a serial port. This is in case there is a display attached that
2282 * is not the console. In that situation we don't need/want the X
2283 * server taking over the console.
2284 */
2285 if (constty != NULL && unit == comconsole)
2286 constty = NULL;
2307 return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
2287 return ((*linesw[com->tp->t_line].l_write)(com->tp, uio, flag));
2308}
2309
2310static void
2311siobusycheck(chan)
2312 void *chan;
2313{
2314 struct com_s *com;
2315 int s;

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

2459 void *arg;
2460{
2461#ifndef COM_MULTIPORT
2462 COM_LOCK();
2463 siointr1((struct com_s *) arg);
2464 COM_UNLOCK();
2465#else /* COM_MULTIPORT */
2466 bool_t possibly_more_intrs;
2288}
2289
2290static void
2291siobusycheck(chan)
2292 void *chan;
2293{
2294 struct com_s *com;
2295 int s;

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

2439 void *arg;
2440{
2441#ifndef COM_MULTIPORT
2442 COM_LOCK();
2443 siointr1((struct com_s *) arg);
2444 COM_UNLOCK();
2445#else /* COM_MULTIPORT */
2446 bool_t possibly_more_intrs;
2447 int unit;
2448 struct com_s *com;
2467#ifdef PC98
2468 u_char rsa_buf_status;
2469#endif
2470
2471 /*
2472 * Loop until there is no activity on any port. This is necessary
2473 * to get an interrupt edge more than to avoid another interrupt.
2474 * If the IRQ signal is just an OR of the IRQ signals from several

--- 1449 unchanged lines hidden (view full) ---

3924};
3925
3926static speed_t siocngetspeed __P((Port_t, struct speedtab *));
3927static void siocnclose __P((struct siocnstate *sp, Port_t iobase));
3928static void siocnopen __P((struct siocnstate *sp, Port_t iobase, int speed));
3929static void siocntxwait __P((Port_t iobase));
3930
3931#ifdef __i386__
2449#ifdef PC98
2450 u_char rsa_buf_status;
2451#endif
2452
2453 /*
2454 * Loop until there is no activity on any port. This is necessary
2455 * to get an interrupt edge more than to avoid another interrupt.
2456 * If the IRQ signal is just an OR of the IRQ signals from several

--- 1449 unchanged lines hidden (view full) ---

3906};
3907
3908static speed_t siocngetspeed __P((Port_t, struct speedtab *));
3909static void siocnclose __P((struct siocnstate *sp, Port_t iobase));
3910static void siocnopen __P((struct siocnstate *sp, Port_t iobase, int speed));
3911static void siocntxwait __P((Port_t iobase));
3912
3913#ifdef __i386__
3932/*
3933 * XXX: sciocnget() and sciocnputc() are not declared static, as they are
3934 * referred to from i386/i386/i386-gdbstub.c.
3935 */
3936static cn_probe_t siocnprobe;
3937static cn_init_t siocninit;
3938static cn_checkc_t siocncheckc;
3914static cn_probe_t siocnprobe;
3915static cn_init_t siocninit;
3916static cn_checkc_t siocncheckc;
3939 cn_getc_t siocngetc;
3940 cn_putc_t siocnputc;
3917static cn_getc_t siocngetc;
3918static cn_putc_t siocnputc;
3941
3942CONS_DRIVER(sio, siocnprobe, siocninit, siocngetc, siocncheckc, siocnputc);
3943
3919
3920CONS_DRIVER(sio, siocnprobe, siocninit, siocngetc, siocncheckc, siocnputc);
3921
3944/*
3945 * Routines to support GDB on an sio port.
3946 */
3947dev_t gdbdev;
3948cn_getc_t *gdb_getc;
3949cn_putc_t *gdb_putc;
3950
3922/* To get the GDB related variables */
3923#if DDB > 0
3924#include <ddb/ddb.h>
3951#endif
3925#endif
3926#endif
3952
3953static void
3954siocntxwait(iobase)
3955 Port_t iobase;
3956{
3957 int timo;
3958
3959 /*

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

4145 siocniobase = iobase;
4146 siocnunit = unit;
4147 }
4148 if (COM_DEBUGGER(flags) && !COM_LLCONSOLE(flags)) {
4149 printf("sio%d: gdb debugging port\n", unit);
4150 siogdbiobase = iobase;
4151 siogdbunit = unit;
4152#ifdef __i386__
3927
3928static void
3929siocntxwait(iobase)
3930 Port_t iobase;
3931{
3932 int timo;
3933
3934 /*

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

4120 siocniobase = iobase;
4121 siocnunit = unit;
4122 }
4123 if (COM_DEBUGGER(flags) && !COM_LLCONSOLE(flags)) {
4124 printf("sio%d: gdb debugging port\n", unit);
4125 siogdbiobase = iobase;
4126 siogdbunit = unit;
4127#ifdef __i386__
4128#if DDB > 0
4153 gdbdev = makedev(CDEV_MAJOR, unit);
4154 gdb_getc = siocngetc;
4155 gdb_putc = siocnputc;
4156#endif
4129 gdbdev = makedev(CDEV_MAJOR, unit);
4130 gdb_getc = siocngetc;
4131 gdb_putc = siocnputc;
4132#endif
4133#endif
4157 }
4158 }
4159 }
4160#ifdef __i386__
4134 }
4135 }
4136 }
4137#ifdef __i386__
4138#if DDB > 0
4161 /*
4162 * XXX Ugly Compatability.
4163 * If no gdb port has been specified, set it to be the console
4164 * as some configuration files don't specify the gdb port.
4165 */
4139 /*
4140 * XXX Ugly Compatability.
4141 * If no gdb port has been specified, set it to be the console
4142 * as some configuration files don't specify the gdb port.
4143 */
4166 if (gdbdev == -1 && (boothowto & RB_GDB)) {
4144 if (gdbdev == NODEV && (boothowto & RB_GDB)) {
4167 printf("Warning: no GDB port specified. Defaulting to sio%d.\n",
4168 siocnunit);
4169 printf("Set flag 0x80 on desired GDB port in your\n");
4170 printf("configuration file (currently sio only).\n");
4171 siogdbiobase = siocniobase;
4172 siogdbunit = siocnunit;
4173 gdbdev = makedev(CDEV_MAJOR, siocnunit);
4174 gdb_getc = siocngetc;
4175 gdb_putc = siocnputc;
4176 }
4177#endif
4145 printf("Warning: no GDB port specified. Defaulting to sio%d.\n",
4146 siocnunit);
4147 printf("Set flag 0x80 on desired GDB port in your\n");
4148 printf("configuration file (currently sio only).\n");
4149 siogdbiobase = siocniobase;
4150 siogdbunit = siocnunit;
4151 gdbdev = makedev(CDEV_MAJOR, siocnunit);
4152 gdb_getc = siocngetc;
4153 gdb_putc = siocnputc;
4154 }
4155#endif
4156#endif
4178}
4179
4180#ifdef __alpha__
4181
4182struct consdev siocons = {
4183 NULL, NULL, siocngetc, siocncheckc, siocnputc,
4184 NULL, makedev(CDEV_MAJOR, 0), CN_NORMAL,
4185};

--- 846 unchanged lines hidden --- 		4157}
4158
4159#ifdef __alpha__
4160
4161struct consdev siocons = {
4162 NULL, NULL, siocngetc, siocncheckc, siocnputc,
4163 NULL, makedev(CDEV_MAJOR, 0), CN_NORMAL,
4164};

--- 846 unchanged lines hidden ---