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Annotation of sys/arch/armish/dev/com_obio.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: com_obio.c,v 1.4 2006/06/16 01:31:35 drahn Exp $      */
        !             2: /*     $NetBSD: com_obio.c,v 1.9 2005/12/11 12:17:09 christos Exp $    */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 2001 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Matt Thomas <matt@3am-software.com>.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. All advertising materials mentioning features or use of this software
        !            20:  *    must display the following acknowledgement:
        !            21:  *        This product includes software developed by the NetBSD
        !            22:  *        Foundation, Inc. and its contributors.
        !            23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            24:  *    contributors may be used to endorse or promote products derived
        !            25:  *    from this software without specific prior written permission.
        !            26:  *
        !            27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            37:  * POSSIBILITY OF SUCH DAMAGE.
        !            38:  */
        !            39:
        !            40: #include <sys/param.h>
        !            41: #include <sys/systm.h>
        !            42: #include <sys/device.h>
        !            43: #include <sys/termios.h>
        !            44:
        !            45: #include <machine/bus.h>
        !            46:
        !            47: #include <arm/xscale/i80321var.h>
        !            48: #include <armish/dev/obiovar.h>
        !            49:
        !            50: #include <dev/ic/comreg.h>
        !            51: #include <dev/ic/comvar.h>
        !            52:
        !            53: struct com_obio_softc {
        !            54:        struct com_softc sc_com;
        !            55:
        !            56:        void *sc_ih;
        !            57: };
        !            58:
        !            59: int    com_obio_match(struct device *, void *, void *);
        !            60: void   com_obio_attach(struct device *, struct device *, void *);
        !            61:
        !            62: struct cfattach com_obio_ca = {
        !            63:        sizeof(struct com_obio_softc), com_obio_match, com_obio_attach
        !            64: };
        !            65:
        !            66: struct cfdriver com_obio_cd = {
        !            67:        NULL, "com_obio", DV_DULL
        !            68: };
        !            69:
        !            70: int com_irq_override = -1;
        !            71:
        !            72: int
        !            73: com_obio_match(struct device *parent, void *cf, void *aux)
        !            74: {
        !            75:        struct obio_attach_args *oba = aux;
        !            76:
        !            77:        /* if the irq does not match, do not attach */
        !            78:        if (com_irq_override != -1)
        !            79:                oba->oba_irq = com_irq_override;
        !            80:
        !            81:        /* We take it on faith that the device is there. */
        !            82:        return (1);
        !            83: }
        !            84:
        !            85:
        !            86: void
        !            87: com_obio_attach(struct device *parent, struct device *self, void *aux)
        !            88: {
        !            89:        struct obio_attach_args *oba = aux;
        !            90:        struct com_obio_softc *osc = (void *) self;
        !            91:        struct com_softc *sc = &osc->sc_com;
        !            92:        int error;
        !            93:
        !            94:        sc->sc_iot = oba->oba_st;
        !            95:        sc->sc_iobase = oba->oba_addr;
        !            96:        sc->sc_frequency = COM_FREQ;
        !            97: /*     sc->sc_hwflags = COM_HW_NO_TXPRELOAD; */
        !            98:        sc->sc_hwflags = 0;
        !            99:        error = bus_space_map(sc->sc_iot, oba->oba_addr, 8, 0, &sc->sc_ioh);
        !           100:
        !           101:        if (error) {
        !           102:                printf(": failed to map registers: %d\n", error);
        !           103:                return;
        !           104:        }
        !           105:
        !           106:        com_attach_subr(sc);
        !           107:        osc->sc_ih = i80321_intr_establish(oba->oba_irq, IPL_TTY,
        !           108:            comintr, sc, sc->sc_dev.dv_xname);
        !           109:        if (osc->sc_ih == NULL)
        !           110:                printf("%s: unable to establish interrupt at CPLD irq %d\n",
        !           111:                    sc->sc_dev.dv_xname, oba->oba_irq);
        !           112: }