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Diffstat (limited to 'sys/dev/tc/tcvar.h')
| -rw-r--r-- | sys/dev/tc/tcvar.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/sys/dev/tc/tcvar.h b/sys/dev/tc/tcvar.h new file mode 100644 index 00000000000..5f36aeea8f5 --- /dev/null +++ b/sys/dev/tc/tcvar.h @@ -0,0 +1,120 @@ +/* $NetBSD: tcvar.h,v 1.1 1995/12/20 00:48:36 cgd Exp $ */ + +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Chris G. Demetriou + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#ifndef __DEV_TC_TCVAR_H__ +#define __DEV_TC_TCVAR_H__ + +/* + * TurboChannel autoconfiguration definitions. + */ + +#include <dev/tc/tcreg.h> +#include <machine/tc_machdep.h> + +/* + * Interrupt levels. XXX should be common, elsewhere. + */ +typedef enum { + TC_IPL_NONE, /* block only this interrupt */ + TC_IPL_BIO, /* block disk interrupts */ + TC_IPL_NET, /* block network interrupts */ + TC_IPL_TTY, /* block terminal interrupts */ + TC_IPL_CLOCK, /* block clock interrupts */ +} tc_intrlevel_t; + +/* + * Arguments used to attach TurboChannel busses. + */ +struct tc_attach_args { + u_int tca_nslots; + struct tc_slotdesc *tca_slots; + + u_int tca_nbuiltins; + const struct tc_builtin *tca_builtins; + + void (*tca_intr_establish) __P((struct device *, void *, + tc_intrlevel_t, int (*)(void *), void *)); + void (*tca_intr_disestablish) __P((struct device *, void *)); +}; + +/* + * Arguments used to attach TurboChannel devices. + */ +struct tcdev_attach_args { + char tcda_modname[TC_ROM_LLEN+1]; + u_int tcda_slot; + tc_offset_t tcda_offset; + tc_addr_t tcda_addr; + void *tcda_cookie; +}; + +/* + * Description of TurboChannel slots, provided by machine-dependent + * code to the TurboChannel bus driver. + */ +struct tc_slotdesc { + tc_addr_t tcs_addr; + void *tcs_cookie; + int tcs_used; +}; + +/* + * Description of built-in TurboChannel devices, provided by + * machine-dependent code to the TurboChannel bus driver. + */ +struct tc_builtin { + char *tcb_modname; + u_int tcb_slot; + tc_offset_t tcb_offset; + void *tcb_cookie; +}; + +/* + * Interrupt establishment functions. + */ +void tc_intr_establish __P((struct device *, void *, tc_intrlevel_t, + int (*)(void *), void *)); +void tc_intr_disestablish __P((struct device *, void *)); + +/* + * Easy to remember names for TurboChannel device locators. + */ +#define tccf_slot cf_loc[0] /* slot */ +#define tccf_offset cf_loc[1] /* offset */ + +#define TCCF_SLOT_UNKNOWN -1 +#define TCCF_OFFSET_UNKNOWN -1 + +/* + * The TurboChannel bus cfdriver, so that subdevices can more + * easily tell what bus they're on. + */ +extern struct cfdriver tccd; + +#endif /* __DEV_TC_TCVAR_H__ */ |