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sbscd.c revision 1.8 
      1 /* $NetBSD: sbscd.c,v 1.8 2003/07/15 02:43:40 lukem Exp $ */
      2 
      3 /*
      4  * Copyright 2000, 2001
      5  * Broadcom Corporation. All rights reserved.
      6  *
      7  * This software is furnished under license and may be used and copied only
      8  * in accordance with the following terms and conditions.  Subject to these
      9  * conditions, you may download, copy, install, use, modify and distribute
     10  * modified or unmodified copies of this software in source and/or binary
     11  * form. No title or ownership is transferred hereby.
     12  *
     13  * 1) Any source code used, modified or distributed must reproduce and
     14  *    retain this copyright notice and list of conditions as they appear in
     15  *    the source file.
     16  *
     17  * 2) No right is granted to use any trade name, trademark, or logo of
     18  *    Broadcom Corporation.  The "Broadcom Corporation" name may not be
     19  *    used to endorse or promote products derived from this software
     20  *    without the prior written permission of Broadcom Corporation.
     21  *
     22  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
     23  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
     24  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
     25  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
     26  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
     27  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     30  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     31  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     32  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: sbscd.c,v 1.8 2003/07/15 02:43:40 lukem Exp $");
     37 
     38 #include <sys/param.h>
     39 #include <sys/device.h>
     40 #include <sys/systm.h>
     41 
     42 #include <mips/sibyte/include/zbbusvar.h>
     43 #include <mips/sibyte/dev/sbscdvar.h>
     44 
     45 #include "locators.h"
     46 
     47 static int	sbscd_match(struct device *, struct cfdata *, void *);
     48 static void	sbscd_attach(struct device *, struct device *, void *);
     49 
     50 CFATTACH_DECL(sbscd, sizeof(struct device),
     51     sbscd_match, sbscd_attach, NULL, NULL);
     52 
     53 static int	sbscd_print(void *, const char *);
     54 static int	sbscd_submatch(struct device *, struct cfdata *, void *);
     55 static const char *sbscd_device_type_name(enum sbscd_device_type type);
     56 
     57 static const struct sbscd_attach_locs sb1250_sbscd_devs[] = {
     58 #if 0
     59 	{ 0x20000, {-1,-1},	SBSCD_DEVTYPE_ICU,		},
     60 #endif
     61 	{ 0x20050, {0,-1},	SBSCD_DEVTYPE_WDOG,		},
     62 	{ 0x20150, {1,-1},	SBSCD_DEVTYPE_WDOG,		},
     63 	{ 0x20070, {2,-1},	SBSCD_DEVTYPE_TIMER,		},
     64 	{ 0x20078, {3,-1},	SBSCD_DEVTYPE_TIMER,		},
     65 	{ 0x20170, {4,-1},	SBSCD_DEVTYPE_TIMER,		},
     66 	{ 0x20178, {5,-1},	SBSCD_DEVTYPE_TIMER,		},
     67 	{ 0x1FFA0, {-1,-1},	SBSCD_DEVTYPE_JTAGCONS,		},
     68 	/* XXX others */
     69 };
     70 static const int sb1250_sbscd_dev_count =
     71     sizeof sb1250_sbscd_devs / sizeof sb1250_sbscd_devs[0];
     72 
     73 static int
     74 sbscd_match(struct device *parent, struct cfdata *match, void *aux)
     75 {
     76 	struct zbbus_attach_args *zap = aux;
     77 
     78 	if (zap->za_locs.za_type != ZBBUS_ENTTYPE_SCD)
     79 		return (0);
     80 
     81 	return 1;
     82 }
     83 
     84 static void
     85 sbscd_attach(struct device *parent, struct device *self, void *aux)
     86 {
     87 	struct sbscd_attach_args sa;
     88 	int i;
     89 
     90 	printf("\n");
     91 
     92 	for (i = 0; i < sb1250_sbscd_dev_count; i++) {
     93 		memset(&sa, 0, sizeof sa);
     94 		sa.sa_base = 0x10000000;			/* XXXCGD */
     95 		sa.sa_locs = sb1250_sbscd_devs[i];
     96 		config_found_sm(self, &sa, sbscd_print, sbscd_submatch);
     97 	}
     98 	return;
     99 }
    100 
    101 int
    102 sbscd_print(void *aux, const char *pnp)
    103 {
    104 	struct sbscd_attach_args *sap = aux;
    105 	int i;
    106 
    107 	if (pnp)
    108 		aprint_normal("%s at %s",
    109 		    sbscd_device_type_name(sap->sa_locs.sa_type), pnp);
    110 	aprint_normal(" offset 0x%lx", (long)sap->sa_locs.sa_offset);
    111 	for (i = 0; i < 2; i++) {
    112 		if (sap->sa_locs.sa_intr[i] != -1)
    113 			aprint_normal("%s%ld", i == 0 ? " intr " : ",",
    114 			    (long)sap->sa_locs.sa_intr[i]);
    115 	}
    116 	return (UNCONF);
    117 }
    118 
    119 static int
    120 sbscd_submatch(struct device *parent, struct cfdata *cf, void *aux)
    121 {
    122 	struct sbscd_attach_args *sap = aux;
    123 	int i;
    124 
    125 	if (cf->cf_loc[SBSCDCF_OFFSET] != SBSCDCF_OFFSET_DEFAULT &&
    126 	    cf->cf_loc[SBSCDCF_OFFSET] != sap->sa_locs.sa_offset)
    127 		return (0);
    128 
    129 	for (i = 0; i < 2; i++) {
    130 		if (cf->cf_loc[SBSCDCF_INTR + i] != SBSCDCF_INTR_DEFAULT &&
    131 		    cf->cf_loc[SBSCDCF_INTR + i] != sap->sa_locs.sa_intr[i])
    132 			return (0);
    133 	}
    134 
    135 	return (config_match(parent, cf, aux));
    136 }
    137 
    138 static const char *
    139 sbscd_device_type_name(enum sbscd_device_type type)
    140 {
    141 
    142 	switch (type) {
    143 	case SBSCD_DEVTYPE_ICU:
    144 		return ("sbicu");
    145 	case SBSCD_DEVTYPE_WDOG:
    146 		return ("sbwdog");
    147 	case SBSCD_DEVTYPE_TIMER:
    148 		return ("sbtimer");
    149 	case SBSCD_DEVTYPE_JTAGCONS:
    150 		return ("sbjcn");
    151 
    152 	}
    153 	panic("sbscd_device_type_name");
    154 	return ("panic");
    155 }
    156