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Annotation of sys/dev/puc/com_puc.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: com_puc.c,v 1.14 2006/11/05 17:18:14 martin Exp $     */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1997 - 1999, Jason Downs.  All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  * 1. Redistributions of source code must retain the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer.
        !            11:  * 2. Redistributions in binary form must reproduce the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer in the
        !            13:  *    documentation and/or other materials provided with the distribution.
        !            14:  * 3. Neither the name(s) of the author(s) nor the name OpenBSD
        !            15:  *    may be used to endorse or promote products derived from this software
        !            16:  *    without specific prior written permission.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
        !            19:  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            20:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            21:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
        !            22:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            23:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            24:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
        !            25:  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            26:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            27:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            28:  * SUCH DAMAGE.
        !            29:  */
        !            30:
        !            31: #include <sys/param.h>
        !            32: #include <sys/systm.h>
        !            33: #include <sys/ioctl.h>
        !            34: #include <sys/selinfo.h>
        !            35: #include <sys/tty.h>
        !            36: #include <sys/proc.h>
        !            37: #include <sys/user.h>
        !            38: #include <sys/conf.h>
        !            39: #include <sys/file.h>
        !            40: #include <sys/uio.h>
        !            41: #include <sys/kernel.h>
        !            42: #include <sys/syslog.h>
        !            43: #include <sys/device.h>
        !            44:
        !            45: #include <machine/intr.h>
        !            46: #include <machine/bus.h>
        !            47:
        !            48: #include <dev/pci/pucvar.h>
        !            49:
        !            50: #include "com.h"
        !            51: #ifdef i386
        !            52: #include "pccom.h"
        !            53: #endif
        !            54:
        !            55: #include <dev/ic/comreg.h>
        !            56: #if NPCCOM > 0
        !            57: #include <i386/isa/pccomvar.h>
        !            58: #endif
        !            59: #if NCOM > 0
        !            60: #include <dev/ic/comvar.h>
        !            61: #endif
        !            62: #include <dev/ic/ns16550reg.h>
        !            63:
        !            64: #define        com_lcr         com_cfcr
        !            65:
        !            66: int com_puc_match(struct device *, void *, void *);
        !            67: void com_puc_attach(struct device *, struct device *, void *);
        !            68: int com_puc_detach(struct device *, int );
        !            69:
        !            70: #if NCOM > 0
        !            71: struct cfattach com_puc_ca = {
        !            72:        sizeof(struct com_softc), com_puc_match, com_puc_attach, com_puc_detach
        !            73: };
        !            74: #endif
        !            75:
        !            76: #if NPCCOM > 0
        !            77: struct cfattach pccom_puc_ca = {
        !            78:        sizeof(struct com_softc), com_puc_match, com_puc_attach, com_puc_detach
        !            79: };
        !            80: #endif
        !            81:
        !            82: int
        !            83: com_puc_match(parent, match, aux)
        !            84:        struct device *parent;
        !            85:        void *match, *aux;
        !            86: {
        !            87:        struct puc_attach_args *pa = aux;
        !            88:
        !            89:        if (pa->type == PUC_PORT_TYPE_COM)
        !            90:                return(1);
        !            91:
        !            92:        return(0);
        !            93: }
        !            94:
        !            95: void
        !            96: com_puc_attach(parent, self, aux)
        !            97:        struct device *parent, *self;
        !            98:        void *aux;
        !            99: {
        !           100:        struct com_softc *sc = (void *)self;
        !           101:        struct puc_attach_args *pa = aux;
        !           102:        const char *intrstr;
        !           103:
        !           104:        /* Grab a PCI interrupt. */
        !           105:        intrstr = pa->intr_string(pa);
        !           106:        sc->sc_ih = pa->intr_establish(pa, IPL_TTY, comintr, sc,
        !           107:            sc->sc_dev.dv_xname);
        !           108:        if (sc->sc_ih == NULL) {
        !           109:                printf(": couldn't establish interrupt");
        !           110:                if (intrstr != NULL)
        !           111:                        printf(" at %s", intrstr);
        !           112:                printf("\n");
        !           113:                return;
        !           114:        }
        !           115:        printf(" %s", intrstr);
        !           116:
        !           117:        sc->sc_iot = pa->t;
        !           118:        sc->sc_ioh = pa->h;
        !           119:        sc->sc_iobase = pa->a;
        !           120:        sc->sc_frequency = COM_FREQ;
        !           121:
        !           122:        if (pa->flags)
        !           123:                sc->sc_frequency = pa->flags & PUC_COM_CLOCKMASK;
        !           124:        if (pa->hwtype)
        !           125:                sc->sc_uarttype = pa->hwtype;
        !           126:
        !           127:        sc->sc_hwflags = 0;
        !           128:        sc->sc_swflags = 0;
        !           129:
        !           130:        com_attach_subr(sc);
        !           131: }
        !           132:
        !           133: int
        !           134: com_puc_detach(struct device *self, int flags)
        !           135: {
        !           136:        /* struct com_softc *sc = (void *)self; */
        !           137:        int error;
        !           138:
        !           139:        if ((error = com_detach(self, flags)) != 0)
        !           140:                return (error);
        !           141:
        !           142:        /* cardbus_intr_disestablish(psc->sc_cc, psc->sc_cf, csc->cc_ih); */
        !           143:
        !           144:        return (0);
        !           145: }