163 lines
5.6 KiB
C
163 lines
5.6 KiB
C
/* $NetBSD: ppbus_base.h,v 1.4 2005/02/27 00:27:44 perry Exp $ */
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/*
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* Copyright (c) 1997, 1998, 1999 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: src/sys/dev/ppbus/ppbconf.h,v 1.17.2.1 2000/05/24 00:20:57 n_hibma Exp $
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*
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*/
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#ifndef __PPBUS_BASE_H
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#define __PPBUS_BASE_H
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#include <machine/bus.h>
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#include <dev/ppbus/ppbus_msq.h>
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/* Parallel Port Chipset control bits. */
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#define STROBE 0x01
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#define AUTOFEED 0x02
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#define nINIT 0x04
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#define SELECTIN 0x08
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#define IRQENABLE 0x10
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#define PCD 0x20
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#define nSTROBE inv(STROBE)
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#define nAUTOFEED inv(AUTOFEED)
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#define INIT inv(nINIT)
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#define nSELECTIN inv(SELECTIN)
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#define nPCD inv(PCD)
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/* Parallel Port Chipset status bits. */
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#define TIMEOUT 0x01
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#define nFAULT 0x08
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#define SELECT 0x10
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#define PERROR 0x20
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#define nACK 0x40
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#define nBUSY 0x80
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/* Byte mode signals */
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#define HOSTCLK nSTROBE /* Also ECP mode signal */
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#define HOSTBUSY nAUTOFEED
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#define ACTIVE1284 nSELECTIN /* Also ECP mode signal */
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#define PTRCLK nACK
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#define PTRBUSY BUSY
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#define ACKDATAREQ PERROR
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#define XFLAG SELECT /* Also ECP mode signal */
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#define nDATAVAIL nERROR
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/* ECP mode signals */
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#define HOSTACK nAUTOFEED
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#define nREVREQ nINIT
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#define PERICLK nACK
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#define PERIACK BUSY
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#define nACKREV PERROR
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#define nPERIREQ nERROR
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/* EPP mode signals */
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#define nWRITE nSTROBE
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#define nDATASTB nAUTOFEED
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#define nADDRSTB nSELECTIN
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#define nWAIT BUSY
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/*
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#define nINIT nRESET
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#define nACK nINTR
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*/
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/* ECR register bit definitions */
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#define ECR_FIFO_EMPTY 0x1 /* ecr register - bit 0 */
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#define ECR_FIFO_FULL 0x2 /* ecr register - bit 1 */
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#define ECR_SERVICE_INTR 0x4 /* ecr register - bit 2 */
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#define ECR_ENABLE_DMA 0x8 /* ecr register - bit 3 */
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#define ECR_nFAULT_INTR 0x10 /* ecr register - bit 4 */
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/* bits 5 through 7 */
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#define ECR_STD 0x00 /* Standard mode */
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#define ECR_PS2 0x20 /* Bidirectional mode */
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#define ECR_FIFO 0x40 /* Fast Centronics mode */
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#define ECR_ECP 0x60 /* ECP mode */
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#define ECR_EPP 0x80 /* EPP mode */
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#define ECR_TST 0xc0 /* Test mode*/
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/* Used for IEEE 1284 'PNP' detection */
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#define PPBUS_PNP_PRINTER 0
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#define PPBUS_PNP_MODEM 1
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#define PPBUS_PNP_NET 2
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#define PPBUS_PNP_HDC 3
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#define PPBUS_PNP_PCMCIA 4
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#define PPBUS_PNP_MEDIA 5
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#define PPBUS_PNP_FDC 6
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#define PPBUS_PNP_PORTS 7
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#define PPBUS_PNP_SCANNER 8
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#define PPBUS_PNP_DIGICAM 9
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#define PPBUS_PNP_UNKNOWN 10
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/* Structure to store status information. */
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struct ppbus_status {
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unsigned char status;
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unsigned int timeout:1;
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unsigned int error:1;
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unsigned int select:1;
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unsigned int paper_end:1;
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unsigned int ack:1;
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unsigned int busy:1;
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};
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/* How tsleep() is called in ppbus_request_bus(). */
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#define PPBUS_DONTWAIT 0
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#define PPBUS_NOINTR 0
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#define PPBUS_WAIT 0x1
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#define PPBUS_INTR 0x2
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#define PPBUS_POLL 0x4
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#define PPBUS_FOREVER -1
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/* PPBUS interface functions (includes parport interface) */
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int ppbus_scan_bus(struct device *);
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void ppbus_pnp_detect(struct device *);
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int ppbus_request_bus(struct device *, struct device *, int, unsigned int);
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int ppbus_release_bus(struct device *, struct device *, int, unsigned int);
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int ppbus_get_status(struct device *, struct ppbus_status *);
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int ppbus_poll_bus(struct device *, int, char, char, int);
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/* Parport interface function prototypes */
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int ppbus_read_ivar(struct device *, int, unsigned int *);
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int ppbus_write_ivar(struct device *, int, unsigned int *);
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int ppbus_reset_epp_timeout(struct device *);
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int ppbus_ecp_sync(struct device *);
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int ppbus_set_mode(struct device *, int, int);
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int ppbus_get_mode(struct device *);
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int ppbus_write(struct device *, char *, int, int, size_t *);
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int ppbus_read(struct device *, char *, int, int, size_t *);
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int ppbus_exec_microseq(struct device *, struct ppbus_microseq * *);
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int ppbus_io(struct device *, int, u_char *, int, u_char);
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int ppbus_dma_malloc(struct device *, caddr_t *, bus_addr_t *, bus_size_t);
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int ppbus_dma_free(struct device *, caddr_t *, bus_addr_t *, bus_size_t);
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int ppbus_add_handler(struct device *, void (*)(void *), void *);
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int ppbus_remove_handler(struct device *, void (*)(void *));
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#endif /* __PPBUS_BASE_H */
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