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/*-
* Copyright (c) 2005 Peter Grehan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PLATFORMVAR_H_
#define _MACHINE_PLATFORMVAR_H_
/*
* An ARM platform implementation is declared with a kernel object and
* an associated method table, similar to a device driver.
*
* e.g.
*
* static platform_method_t bcm2835_methods[] = {
* PLATFORMMETHOD(platform_probe, bcm2835_probe),
* ...
* PLATFORMMETHOD_END
* };
*
* static platform_def_t bcm3835_platform = {
* "bcm2835",
* bcm2835_methods,
* sizeof(bcm2835_platform_softc), // or 0 if no softc
* };
*
* PLATFORM_DEF(bcm2835_platform);
*/
#include <sys/kobj.h>
#include <sys/linker_set.h>
struct platform_class {
KOBJ_CLASS_FIELDS;
/* How many times to loop to delay approximately 1us */
int delay_count;
};
struct platform_kobj {
/*
* A platform instance is a kernel object
*/
KOBJ_FIELDS;
/* Platform class, for access to class specific data */
struct platform_class *cls;
};
typedef struct platform_kobj *platform_t;
typedef struct platform_class platform_def_t;
#define platform_method_t kobj_method_t
#define PLATFORMMETHOD KOBJMETHOD
#define PLATFORMMETHOD_END KOBJMETHOD_END
#define PLATFORM_DEF(name) DATA_SET(platform_set, name)
#ifdef FDT
struct fdt_platform_class {
KOBJ_CLASS_FIELDS;
const char *fdt_compatible;
};
typedef struct fdt_platform_class fdt_platform_def_t;
extern platform_method_t fdt_platform_methods[];
#define FDT_PLATFORM_DEF2(NAME, VAR_NAME, NAME_STR, size, compatible, \
delay) \
CTASSERT(delay > 0); \
static fdt_platform_def_t VAR_NAME ## _fdt_platform = { \
.name = NAME_STR, \
.methods = fdt_platform_methods, \
.fdt_compatible = compatible, \
}; \
static kobj_class_t VAR_NAME ## _baseclasses[] = \
{ (kobj_class_t)&VAR_NAME ## _fdt_platform, NULL }; \
static platform_def_t VAR_NAME ## _platform = { \
NAME_STR, \
NAME ## _methods, \
size, \
VAR_NAME ## _baseclasses, \
delay, \
}; \
DATA_SET(platform_set, VAR_NAME ## _platform)
#define FDT_PLATFORM_DEF(NAME, NAME_STR, size, compatible, delay) \
FDT_PLATFORM_DEF2(NAME, NAME, NAME_STR, size, compatible, delay)
#endif
/*
* Helper to get the platform object
*/
platform_t platform_obj(void);
bool arm_tmr_timed_wait(platform_t, int);
#endif /* _MACHINE_PLATFORMVAR_H_ */
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