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m48t59: add a Nvram interface

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Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
CC: Andreas Färber <afaerber@suse.de>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Hervé Poussineau 2015-03-02 22:23:27 +00:00 • committed by Mark Cave-Ayland
parent 051ddccde2
commit 4374532888
2 changed files with 83 additions and 0 deletions
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24
include/hw/timer/m48t59.h
View file

@ -1,6 +1,9 @@
#ifndef NVRAM_H
#define NVRAM_H
#include "qemu-common.h"
#include "qom/object.h"
/* NVRAM helpers */
typedef uint32_t (*nvram_read_t)(void *private, uint32_t addr);
typedef void (*nvram_write_t)(void *private, uint32_t addr, uint32_t val);
@ -34,4 +37,25 @@ M48t59State *m48t59_init_isa(ISABus *bus, uint32_t io_base, uint16_t size,
M48t59State *m48t59_init(qemu_irq IRQ, hwaddr mem_base,
uint32_t io_base, uint16_t size, int type);
#define TYPE_NVRAM "nvram"
#define NVRAM_CLASS(klass) \
OBJECT_CLASS_CHECK(NvramClass, (klass), TYPE_NVRAM)
#define NVRAM_GET_CLASS(obj) \
OBJECT_GET_CLASS(NvramClass, (obj), TYPE_NVRAM)
#define NVRAM(obj) \
INTERFACE_CHECK(Nvram, (obj), TYPE_NVRAM)
typedef struct Nvram {
Object parent;
} Nvram;
typedef struct NvramClass {
InterfaceClass parent;
uint32_t (*read)(Nvram *obj, uint32_t addr);
void (*write)(Nvram *obj, uint32_t addr, uint32_t val);
void (*toggle_lock)(Nvram *obj, int lock);
} NvramClass;
#endif /* !NVRAM_H */