24 lines
770 B
C
24 lines
770 B
C
/* $NetBSD: z8530var.h,v 1.4 2008/03/29 19:15:34 tsutsui Exp $ */
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#include <dev/ic/z8530sc.h>
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struct zsc_softc {
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device_t zsc_dev; /* required first: base device */
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struct zs_chanstate *zsc_cs[2]; /* channel A and B soft state */
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/* Machine-dependent part follows... */
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void *zsc_softintr_cookie;
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};
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uint8_t zs_read_reg(struct zs_chanstate *cs, uint8_t reg);
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uint8_t zs_read_csr(struct zs_chanstate *cs);
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uint8_t zs_read_data(struct zs_chanstate *cs);
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void zs_write_reg(struct zs_chanstate *cs, uint8_t reg, uint8_t val);
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void zs_write_csr(struct zs_chanstate *cs, uint8_t val);
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void zs_write_data(struct zs_chanstate *cs, uint8_t val);
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/* Interrupt priority for the SCC chip; needs to match ZSHARD_PRI. */
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#define splzs() spl4()
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#define IPL_ZS IPL_HIGH
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