52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* $NetBSD: ppbus_device.h,v 1.3 2004/01/28 17:11:48 jdolecek Exp $ */
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#ifndef __PPBUS_DEVICE_H
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#define __PPBUS_DEVICE_H
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#include <sys/device.h>
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#include <dev/ppbus/ppbus_msq.h>
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/* Parallel Port Bus Device context. */
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struct ppbus_context {
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int valid; /* 1 if the struct is valid */
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int mode; /* XXX chipset operating mode */
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struct microseq *curpc; /* pc in curmsq */
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struct microseq *curmsq; /* currently executed microseqence */
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};
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/* Parallel Port Bus Device structure. */
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struct ppbus_device_softc {
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struct device sc_dev;
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u_int16_t mode; /* current mode of the device */
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u_int16_t capabilities; /* ppbus capabilities */
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/* uint flags; flags */
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struct ppbus_context ctx; /* context of the device */
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/* mode dependent get msq. If NULL,
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* IEEE1284 code is used */
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struct ppbus_xfer
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get_xfer[PPBUS_MAX_XFER];
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/* mode dependent put msq. If NULL,
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* IEEE1284 code is used */
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struct ppbus_xfer
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put_xfer[PPBUS_MAX_XFER];
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/* Each structure is a node in a list of child devices */
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SLIST_ENTRY(ppbus_device_softc) entries;
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};
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struct ppbus_attach_args {
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/* Available IEEE1284 modes */
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u_int16_t capabilities;
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/* Flags?
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u_int16_t flags;*/
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};
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#endif /* __PPBUS_DEVICE_H */
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