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Annotation of sys/arch/sparc64/dev/lpt_ebus.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: lpt_ebus.c,v 1.8 2003/12/16 15:04:56 jason Exp $      */
                      2: /*     $NetBSD: lpt_ebus.c,v 1.8 2002/03/01 11:51:00 martin Exp $      */
                      3:
                      4: /*
                      5:  * Copyright (c) 1999, 2000 Matthew R. Green
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. The name of the author may not be used to endorse or promote products
                     17:  *    derived from this software without specific prior written permission.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     20:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     21:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     22:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     23:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
                     24:  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
                     25:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
                     26:  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
                     27:  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     29:  * SUCH DAMAGE.
                     30:  */
                     31:
                     32: /*
                     33:  * NS Super I/O PC87332VLJ "lpt" to ebus attachment
                     34:  */
                     35:
                     36: #include <sys/types.h>
                     37: #include <sys/param.h>
                     38: #include <sys/systm.h>
                     39: #include <sys/device.h>
                     40: #include <sys/tty.h>
                     41:
                     42: #include <machine/bus.h>
                     43:
                     44: #include <sparc64/dev/ebusreg.h>
                     45: #include <sparc64/dev/ebusvar.h>
                     46:
                     47: #include <dev/ic/lptvar.h>
                     48:
                     49: struct lpt_ebus_softc {
                     50:        struct lpt_softc sc_lpt;
                     51:        bus_space_handle_t sc_ctrl;
                     52: };
                     53:
                     54: int    lpt_ebus_match(struct device *, void *, void *);
                     55: void   lpt_ebus_attach(struct device *, struct device *, void *);
                     56:
                     57: struct cfattach lpt_ebus_ca = {
                     58:        sizeof(struct lpt_ebus_softc), lpt_ebus_match, lpt_ebus_attach
                     59: };
                     60:
                     61: int
                     62: lpt_ebus_match(parent, match, aux)
                     63:        struct device *parent;
                     64:        void *match;
                     65:        void *aux;
                     66: {
                     67:        struct ebus_attach_args *ea = aux;
                     68:
                     69:        if (!strcmp(ea->ea_name, "ecpp") ||
                     70:            !strcmp(ea->ea_name, "parallel"))
                     71:                return (1);
                     72:        return (0);
                     73: }
                     74:
                     75: void
                     76: lpt_ebus_attach(parent, self, aux)
                     77:        struct device *parent, *self;
                     78:        void *aux;
                     79: {
                     80:        struct lpt_ebus_softc *sc = (void *)self;
                     81:        struct ebus_attach_args *ea = aux;
                     82:
                     83:
                     84:        if (ebus_bus_map(ea->ea_memtag, 0,
                     85:            EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
                     86:            0, 0, &sc->sc_lpt.sc_ioh) == 0) {
                     87:                sc->sc_lpt.sc_iot = ea->ea_memtag;
                     88:        } else if (ebus_bus_map(ea->ea_iotag, 0,
                     89:                    EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
                     90:                    0, 0, &sc->sc_lpt.sc_ioh) == 0) {
                     91:                sc->sc_lpt.sc_iot = ea->ea_iotag;
                     92:        } else {
                     93:                printf(": can't map register space\n");
                     94:                return;
                     95:        }
                     96:
                     97:        if (ebus_bus_map(sc->sc_lpt.sc_iot, 0,
                     98:            EBUS_PADDR_FROM_REG(&ea->ea_regs[1]), ea->ea_regs[1].size, 0, 0,
                     99:            &sc->sc_ctrl) != 0) {
                    100:                printf(": can't map control space\n");
                    101:                bus_space_unmap(sc->sc_lpt.sc_iot, sc->sc_lpt.sc_ioh,
                    102:                    ea->ea_regs[0].size);
                    103:                return;
                    104:        }
                    105:
                    106:        sc->sc_lpt.sc_flags |= LPT_POLLED;
                    107:        printf(": polled");
                    108:
                    109:        lpt_attach_common(&sc->sc_lpt);
                    110: }