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46f3ff7986
- ppbus now supports PLIP via the if_plip driver - ieee1284 infrastructure added, including parallel-port PnP - port microsequencer added, for scripting the sort of port I/O that is common with parallel devices without endless calls up and down through the driver structure. - improved bus ownership behaviour among the ppbus-using drivers. - improved I/O chipset feature detection The vpo driver is now implemented using the microsequencer, leading to some performance improvements as well as providing an extensive example of its use. Reviewed by: msmith Submitted by: Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
85 lines
2.7 KiB
C
85 lines
2.7 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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* $Id: vpoio.h,v 1.1.2.3 1998/06/14 15:37:21 son Exp $
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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_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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struct vpoio_data {
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unsigned short int vpo_unit;
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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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struct ppb_device vpo_dev;
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};
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#define vpoio_set_unit(vpo,unit) ((vpo)->vpo_unit = unit)
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struct ppb_device *vpoio_probe(struct ppb_data *ppb, struct vpoio_data *vpo);
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int vpoio_attach(struct vpoio_data *vpo);
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int vpoio_detect(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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#endif
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