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Diffstat (limited to 'sys/dev/ppbus/ppb_1284.h')
| -rw-r--r-- | sys/dev/ppbus/ppb_1284.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sys/dev/ppbus/ppb_1284.h b/sys/dev/ppbus/ppb_1284.h new file mode 100644 index 0000000..f975c26 --- /dev/null +++ b/sys/dev/ppbus/ppb_1284.h @@ -0,0 +1,124 @@ +/*- + * Copyright (c) 1997 Nicolas Souchu + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + * + */ +#ifndef __1284_H +#define __1284_H + +/* + * IEEE1284 signals + */ + +/* host driven signals */ + +#define nHostClk STROBE +#define Write STROBE + +#define nHostBusy AUTOFEED +#define nHostAck AUTOFEED +#define DStrb AUTOFEED + +#define nReveseRequest nINIT + +#define nActive1284 SELECTIN +#define AStrb SELECTIN + +/* peripheral driven signals */ + +#define nDataAvail nFAULT +#define nPeriphRequest nFAULT + +#define Xflag SELECT + +#define AckDataReq PERROR +#define nAckReverse PERROR + +#define nPtrBusy nBUSY +#define nPeriphAck nBUSY +#define Wait nBUSY + +#define PtrClk nACK +#define PeriphClk nACK +#define Intr nACK + +/* request mode values */ +#define NIBBLE_1284_NORMAL 0x0 +#define NIBBLE_1284_REQUEST_ID 0x4 +#define BYTE_1284_NORMAL 0x1 +#define BYTE_1284_REQUEST_ID 0x5 +#define ECP_1284_NORMAL 0x10 +#define ECP_1284_REQUEST_ID 0x14 +#define ECP_1284_RLE 0x30 +#define ECP_1284_RLE_REQUEST_ID 0x34 +#define EPP_1284_NORMAL 0x40 +#define EXT_LINK_1284_NORMAL 0x80 + +/* ieee1284 mode options */ +#define PPB_REQUEST_ID 0x1 +#define PPB_USE_RLE 0x2 +#define PPB_EXTENSIBILITY_LINK 0x4 + +/* ieee1284 errors */ +#define PPB_NO_ERROR 0 +#define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */ +#define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */ +#define PPB_TIMEOUT 3 /* timeout */ +#define PPB_INVALID_MODE 4 /* current mode is incorrect */ + +/* ieee1284 host side states */ +#define PPB_ERROR 0 +#define PPB_FORWARD_IDLE 1 +#define PPB_NEGOCIATION 2 +#define PPB_SETUP 3 +#define PPB_ECP_FORWARD_IDLE 4 +#define PPB_FWD_TO_REVERSE 5 +#define PPB_REVERSE_IDLE 6 +#define PPB_REVERSE_TRANSFER 7 +#define PPB_REVERSE_TO_FWD 8 +#define PPB_EPP_IDLE 9 +#define PPB_TERMINATION 10 + +/* peripheral side states */ +#define PPB_PERIPHERAL_NEGOCIATION 11 +#define PPB_PERIPHERAL_IDLE 12 +#define PPB_PERIPHERAL_TRANSFER 13 +#define PPB_PERIPHERAL_TERMINATION 14 + +extern int nibble_1284_inbyte(struct ppb_device *, char *); +extern int byte_1284_inbyte(struct ppb_device *, char *); +extern int spp_1284_read(struct ppb_device *, int, char *, int, int *); + +extern int ppb_1284_negociate(struct ppb_device *, int, int); +extern int ppb_1284_terminate(struct ppb_device *); +extern int ppb_1284_read_id(struct ppb_device *, int, char *, int, int *); +extern int ppb_1284_read(struct ppb_device *, int, char *, int, int *); + +extern int ppb_peripheral_terminate(struct ppb_device *, int); +extern int ppb_peripheral_negociate(struct ppb_device *, int, int); +extern int byte_peripheral_write(struct ppb_device *, char *, int, int *); + +#endif |
