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Annotation of sys/arch/hppa/dev/com_dino.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: com_dino.c,v 1.4 2007/07/15 19:25:49 kettenis Exp $   */
                      2:
                      3: /*
                      4:  * Copyright (c) 2004 Michael Shalayeff
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  *
                     16:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     17:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     18:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     19:  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
                     20:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
                     21:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
                     22:  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     23:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
                     24:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
                     25:  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
                     26:  * THE POSSIBILITY OF SUCH DAMAGE.
                     27:  */
                     28:
                     29: #include <sys/param.h>
                     30: #include <sys/systm.h>
                     31: #include <sys/device.h>
                     32: #include <sys/tty.h>
                     33:
                     34: #include <machine/bus.h>
                     35: #include <machine/intr.h>
                     36: #include <machine/iomod.h>
                     37: #include <machine/autoconf.h>
                     38:
                     39: #include <dev/ic/comreg.h>
                     40: #include <dev/ic/comvar.h>
                     41:
                     42: #include <hppa/dev/cpudevs.h>
                     43:
                     44: void *dino_intr_establish(void *sc, int irq, int pri,
                     45:     int (*handler)(void *v), void *arg, const char *name);
                     46:
                     47: #define        COM_DINO_FREQ   7272700
                     48:
                     49: struct com_dino_regs {
                     50:        u_int8_t        reset;
                     51:        u_int8_t        pad0[3];
                     52:        u_int8_t        test;
                     53: #define        COM_DINO_PAR_LOOP       0x01
                     54: #define        COM_DINO_CLK_SEL        0x02
                     55:        u_int8_t        pad1[3];
                     56:        u_int32_t       iodc;
                     57:        u_int8_t        pad2[0x54];
                     58:        u_int8_t        dither;
                     59: };
                     60:
                     61: int    com_dino_match(struct device *, void *, void *);
                     62: void   com_dino_attach(struct device *, struct device *, void *);
                     63:
                     64: struct cfattach com_dino_ca = {
                     65:        sizeof(struct com_softc), com_dino_match, com_dino_attach
                     66: };
                     67:
                     68: int
                     69: com_dino_match(parent, match, aux)
                     70:        struct device *parent;
                     71:        void *match, *aux;
                     72: {
                     73:        struct confargs *ca = aux;
                     74:
                     75:        if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
                     76:            ca->ca_type.iodc_sv_model != HPPA_FIO_GRS232)
                     77:                return (0);
                     78:
                     79:        return (1);
                     80:        /* HOZER comprobe1(ca->ca_iot, ca->ca_hpa + IOMOD_DEVOFFSET); */
                     81: }
                     82:
                     83: void
                     84: com_dino_attach(parent, self, aux)
                     85:        struct device *parent, *self;
                     86:        void *aux;
                     87: {
                     88:        struct com_softc *sc = (void *)self;
                     89:        struct confargs *ca = aux;
                     90:        struct com_dino_regs *regs = (struct com_dino_regs *)ca->ca_hpa;
                     91:
                     92:        sc->sc_iot = ca->ca_iot;
                     93:        sc->sc_iobase = (bus_addr_t)ca->ca_hpa + IOMOD_DEVOFFSET;
                     94:
                     95:        if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS,
                     96:            0, &sc->sc_ioh)) {
                     97:                printf(": cannot map io space\n");
                     98:                return;
                     99:        }
                    100:
                    101:        if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
                    102:            PAGE0->mem_cons.pz_hpa == ca->ca_hpa) {
                    103:                bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS);
                    104:                comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate,
                    105:                    COM_DINO_FREQ, comconscflag);
                    106:        }
                    107:
                    108:        /* select clock freq */
                    109:        regs->test = COM_DINO_CLK_SEL;
                    110:        sc->sc_frequency = COM_DINO_FREQ;
                    111:
                    112:        com_attach_subr(sc);
                    113:
                    114:        sc->sc_ih = dino_intr_establish(parent, ca->ca_irq, IPL_TTY,
                    115:            comintr, sc, sc->sc_dev.dv_xname);
                    116: }