29 lines
555 B
C
29 lines
555 B
C
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/ * $FreeBSD$ */
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#define SPIBUS_IVAR(d) (struct spibus_ivar *) device_get_ivars(d)
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#define SPIBUS_SOFTC(d) (struct spibus_softc *) device_get_softc(d)
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struct spibus_softc
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{
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device_t dev;
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};
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struct spibus_ivar
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{
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uint32_t cs;
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};
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enum {
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SPIBUS_IVAR_CS /* chip select that we're on */
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};
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#define SPIBUS_ACCESSOR(A, B, T) \
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__inline static int \
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spibus_get_ ## A(device_t dev, T *t) \
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{ \
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return BUS_READ_IVAR(device_get_parent(dev), dev, \
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SPIBUS_IVAR_ ## B, (uintptr_t *) t); \
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}
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SPIBUS_ACCESSOR(cs, CS, uint32_t)
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