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/* $FreeBSD$ */
/* $NetBSD: tcdsvar.h,v 1.3.4.1 1996/09/10 17:28:20 cgd Exp $ */
/*
* Copyright (c) 1995, 1996 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.
*/
struct tcds_slotconfig {
/*
* Bookkeeping information
*/
int sc_slot;
struct tcds_softc *sc_tcds; /* to frob TCDS regs */
struct esp_softc *sc_esp; /* to frob child's regs */
void (*sc_intrhand)(void *); /* intr. handler */
void *sc_intrarg; /* intr. handler arg. */
/*
* Sets of bits in TCDS CIR and IMER that enable/check
* various things.
*/
u_int32_t sc_resetbits;
u_int32_t sc_intrmaskbits;
u_int32_t sc_intrbits;
u_int32_t sc_dmabits;
u_int32_t sc_errorbits;
/*
* Pointers to slot-specific DMA resources.
*/
volatile u_int32_t *sc_sda;
volatile u_int32_t *sc_dic;
volatile u_int32_t *sc_dud0;
volatile u_int32_t *sc_dud1;
/*
* DMA bookkeeping information.
*/
int sc_active; /* DMA active ? */
int sc_iswrite; /* DMA into main memory? */
size_t sc_dmasize;
caddr_t *sc_dmaaddr;
size_t *sc_dmalen;
};
struct tcdsdev_attach_args {
struct tc_attach_args tcdsda_ta;
struct tcds_slotconfig *tcdsda_sc;
u_int tcdsda_id;
u_int tcdsda_freq;
};
#define tcdsda_modname tcdsda_ta.ta_modname
#define tcdsda_slot tcdsda_ta.ta_slot
#define tcdsda_offset tcdsda_ta.ta_offset
#define tcdsda_addr tcdsda_ta.ta_addr
#define tcdsda_cookie tcdsda_ta.ta_cookie
#define TCDS_REG(base, off) \
(volatile u_int32_t *)TC_DENSE_TO_SPARSE((base) + (off))
/*
* TCDS functions.
*/
void tcds_intr_establish(device_t, void *, tc_intrlevel_t,
int (*)(void *), void *);
void tcds_intr_disestablish(device_t, void *);
void tcds_dma_enable(struct tcds_slotconfig *, int);
void tcds_scsi_enable(struct tcds_slotconfig *, int);
int tcds_scsi_isintr(struct tcds_slotconfig *, int);
void tcds_scsi_reset(struct tcds_slotconfig *);
int tcds_scsi_iserr(struct tcds_slotconfig *sc);
/*
* TCDS DMA functions (used the the 53c94 driver)
*/
int tcds_dma_isintr (struct tcds_slotconfig *);
void tcds_dma_reset(struct tcds_slotconfig *);
int tcds_dma_intr(struct tcds_slotconfig *);
int tcds_dma_setup(struct tcds_slotconfig *, caddr_t *, size_t *,
int, size_t *);
void tcds_dma_go(struct tcds_slotconfig *);
int tcds_dma_isactive(struct tcds_slotconfig *);
/*
* The TCDS (bus) cfdriver, so that subdevices can more
* easily tell what bus they're on.
*/
extern struct cfdriver tcds_cd;
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