116 lines
4.6 KiB
C
116 lines
4.6 KiB
C
/* $NetBSD: ncr5380var.h,v 1.3 1995/09/26 19:24:26 thorpej Exp $ */
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/*
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* Copyright (C) 1994 Adam Glass, Gordon W. Ross
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* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
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* Michael L. Finch, Bradley A. Grantham, and
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* Lawrence A. Kesteloot
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Alice Group.
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* 4. The names of the Alice Group or any of its members may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define SCI_PHASE_DISC 0 /* sort of ... */
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#define SCI_CLR_INTR(regs) ((volatile)(regs->sci_iack))
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#define SCI_ACK(ptr,phase) (ptr)->sci_tcmd = (phase)
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#define SCSI_TIMEOUT_VAL 1000000
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#define WAIT_FOR_NOT_REQ(ptr) { \
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int scsi_timeout = SCSI_TIMEOUT_VAL; \
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while ( ((ptr)->sci_bus_csr & SCI_BUS_REQ) && \
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((ptr)->sci_bus_csr & SCI_BUS_REQ) && \
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((ptr)->sci_bus_csr & SCI_BUS_REQ) && \
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(--scsi_timeout) ); \
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if (!scsi_timeout) { \
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printf("scsi timeout--WAIT_FOR_NOT_REQ---%s, line %d.\n", \
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__FILE__, __LINE__); \
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goto scsi_timeout_error; \
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} \
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}
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#define WAIT_FOR_REQ(ptr) { \
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int scsi_timeout = SCSI_TIMEOUT_VAL; \
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while ( (((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \
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(((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \
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(((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \
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(--scsi_timeout) ); \
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if (!scsi_timeout) { \
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printf("scsi timeout--WAIT_FOR_REQ---%s, line %d.\n", \
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__FILE__, __LINE__); \
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goto scsi_timeout_error; \
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} \
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}
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#define WAIT_FOR_BSY(ptr) { \
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int scsi_timeout = SCSI_TIMEOUT_VAL; \
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while ( (((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \
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(((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \
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(((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \
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(--scsi_timeout) ); \
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if (!scsi_timeout) { \
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printf("scsi timeout--WAIT_FOR_BSY---%s, line %d.\n", \
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__FILE__, __LINE__); \
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goto scsi_timeout_error; \
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} \
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}
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#define ARBITRATION_RETRIES 1000
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#ifndef DDB
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#define Debugger() panic("Should call Debugger here %s:%d", \
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__FILE__, __LINE__)
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#endif /* ! DDB */
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struct ncr5380_softc {
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struct device sc_dev;
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struct intrhand sc_ih; /* interrupt info */
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volatile void *sc_regs;
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int sc_adapter_type;
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int sc_adapter_iv_am; /* int. vec + address modifier */
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struct scsi_link sc_link;
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};
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static int ncr5380_reset_scsibus __P((struct ncr5380_softc *));
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static int ncr5380_poll __P((int, int));
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static void ncr5380_sbc_intr __P((struct ncr5380_softc *));
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static int ncr5380_send_cmd __P((struct scsi_xfer *));
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static int ncr5380_scsi_cmd __P((struct scsi_xfer *));
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static int ncr5380_data_in __P((sci_regmap_t *, int, int, u_char *));
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static int ncr5380_data_out __P((sci_regmap_t *, int, int, u_char *));
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static int ncr5380_select_target __P((volatile sci_regmap_t *, u_char,
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u_char, int));
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static int ncr5380_command_transfer __P((volatile sci_regmap_t *, int,
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u_char *, u_char *, u_char *));
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static int ncr5380_data_transfer __P((volatile sci_regmap_t *, int,
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u_char *, u_char *, u_char *));
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static int ncr5380_dorequest __P((struct ncr5380_softc *, int, int,
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u_char *, int, char *, int, int *));
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static int ncr5380_generic __P((void *, int, int, struct scsi_generic *,
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int, void *, int));
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static int ncr5380_group0 __P((void *, int, int, int, int, int,
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int, caddr_t, int));
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