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Annotation of sys/arch/arm/mainbus/mainbus.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: mainbus.c,v 1.3 2005/12/31 23:03:58 drahn Exp $       */
                      2: /* $NetBSD: mainbus.c,v 1.3 2001/06/13 17:52:43 nathanw Exp $ */
                      3:
                      4: /*
                      5:  * Copyright (c) 1994,1995 Mark Brinicombe.
                      6:  * Copyright (c) 1994 Brini.
                      7:  * All rights reserved.
                      8:  *
                      9:  * Redistribution and use in source and binary forms, with or without
                     10:  * modification, are permitted provided that the following conditions
                     11:  * are met:
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  * 2. Redistributions in binary form must reproduce the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer in the
                     16:  *    documentation and/or other materials provided with the distribution.
                     17:  * 3. All advertising materials mentioning features or use of this software
                     18:  *    must display the following acknowledgement:
                     19:  *     This product includes software developed by Brini.
                     20:  * 4. The name of the company nor the name of the author may be used to
                     21:  *    endorse or promote products derived from this software without specific
                     22:  *    prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
                     25:  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
                     26:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     27:  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
                     28:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
                     29:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
                     30:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  *
                     36:  * RiscBSD kernel project
                     37:  *
                     38:  * mainbus.c
                     39:  *
                     40:  * mainbus configuration
                     41:  *
                     42:  * Created      : 15/12/94
                     43:  */
                     44:
                     45: #include <sys/param.h>
                     46: #include <sys/systm.h>
                     47: #include <sys/kernel.h>
                     48: #include <sys/conf.h>
                     49: #include <sys/malloc.h>
                     50: #include <sys/device.h>
                     51:
                     52: #if defined(arm32)             /* XXX */
                     53: #include <machine/io.h>
                     54: #endif
                     55: #include <machine/bus.h>
                     56: #include <arm/mainbus/mainbus.h>
                     57: /*
                     58: #include "locators.h"
                     59: */
                     60:
                     61: /*
                     62:  * mainbus is a root device so we a bus space tag to pass to children
                     63:  *
                     64:  * The tag is provided by mainbus_io.c and mainbus_io_asm.S
                     65:  */
                     66:
                     67: extern struct bus_space mainbus_bs_tag;
                     68:
                     69: /* Prototypes for functions provided */
                     70:
                     71: int  mainbusmatch  (struct device *, void *, void *);
                     72: void mainbusattach (struct device *, struct device *, void *);
                     73: int  mainbusprint  (void *aux, const char *mainbus);
                     74: int mainbussearch (struct device *,  void *, void *);
                     75:
                     76: /* attach and device structures for the device */
                     77:
                     78: struct cfattach mainbus_ca = {
                     79:        sizeof(struct device), mainbusmatch, mainbusattach
                     80: };
                     81:
                     82: struct cfdriver mainbus_cd = {
                     83:        NULL, "mainbus", DV_DULL
                     84: };
                     85:
                     86: /*
                     87:  * int mainbusmatch(struct device *parent, struct cfdata *cf, void *aux)
                     88:  *
                     89:  * Always match for unit 0
                     90:  */
                     91:
                     92: int
                     93: mainbusmatch(struct device *parent, void *cf, void *aux)
                     94: {
                     95:        return (1);
                     96: }
                     97:
                     98: /*
                     99:  * void mainbusattach(struct device *parent, struct device *self, void *aux)
                    100:  *
                    101:  * probe and attach all children
                    102:  */
                    103:
                    104: void
                    105: mainbusattach(struct device *parent, struct device *self, void *aux)
                    106: {
                    107:        printf("\n");
                    108:
                    109:        config_search(mainbussearch, self, self);
                    110: }
                    111:
                    112: int
                    113: mainbussearch(struct device *parent, void *c, void *aux)
                    114: {
                    115:        struct mainbus_attach_args ma;
                    116:        struct cfdata *cf = c;
                    117:
                    118:
                    119:        ma.ma_iot = &mainbus_bs_tag;
                    120:        ma.ma_name = cf->cf_driver->cd_name;
                    121:
                    122:        config_found(parent, &ma, mainbusprint);
                    123:
                    124:        return 1;
                    125: }
                    126:
                    127: /*
                    128:  * int mainbusprint(void *aux, const char *mainbus)
                    129:  *
                    130:  * print routine used during config of children
                    131:  */
                    132:
                    133: int
                    134: mainbusprint(void *aux, const char *mainbus)
                    135: {
                    136: /* XXXX print flags */
                    137:        return (QUIET);
                    138: }