/* $FreeBSD$ */ /* $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;