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adb50a3799
want according to the modes set with the ppc(4) flags. Especially, it should fix some problems with mode detection of parallel chipsets configured to EPP but which have timing troubles with the drives. In such a case, the driver should now fall back to slower modes (PS2, NIBBLE).
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/*-
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* Copyright (c) 1998 Nicolas Souchu
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef __VP0IO_H
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#define __VP0IO_H
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/*
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* The ZIP drive cannot act as an initiator.
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*/
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#define VP0_INITIATOR 0x7
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#define VP0_ESELECT_TIMEOUT 1
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#define VP0_ECMD_TIMEOUT 2
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#define VP0_ECONNECT 3
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#define VP0_ESTATUS_TIMEOUT 4
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#define VP0_EDATA_OVERFLOW 5
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#define VP0_EDISCONNECT 6
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#define VP0_EPPDATA_TIMEOUT 7
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#define VP0_ENEGOCIATE 8
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#define VP0_ENOPORT 9
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#define VP0_EINITFAILED 10
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#define VP0_EINTR 12
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#define VP0_EOTHER 13
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#define VP0_OPENNINGS 1
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/*
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* Data structure used during microsequence execution
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* when characters are received in nibble mode
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*/
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struct vpo_nibble {
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char h; /* most significant nibble */
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char l; /* less significant nibble */
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};
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/* Mode found during initialisation */
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#define VP0_MODE_UNDEFINED 0x0
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#define VP0_MODE_NIBBLE 0x1
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#define VP0_MODE_PS2 0x2
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#define VP0_MODE_EPP 0x3
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struct vpoio_data {
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unsigned short int vpo_unit;
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int vpo_mode_found; /* Mode found during init */
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struct vpo_nibble vpo_nibble;
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/* each device must have its own nibble inbyte microsequence */
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struct ppb_microseq *vpo_nibble_inbyte_msq;
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device_t vpo_dev;
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};
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#define vpoio_set_unit(vpo,unit) ((vpo)->vpo_unit = unit)
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int vpoio_probe(device_t dev, struct vpoio_data *vpo);
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int vpoio_attach(struct vpoio_data *vpo);
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int vpoio_reset_bus(struct vpoio_data *vpo);
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int vpoio_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
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int clen, char *buffer, int blen, int *result, int *count,
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int *ret);
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int imm_probe(device_t dev, struct vpoio_data *vpo);
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int imm_attach(struct vpoio_data *vpo);
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int imm_reset_bus(struct vpoio_data *vpo);
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int imm_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
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int clen, char *buffer, int blen, int *result, int *count,
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int *ret);
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#endif
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