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ppbus_conf.h revision 1.3
      1 /* $NetBSD: ppbus_conf.h,v 1.3 2004/01/25 00:41:02 bjh21 Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1997, 1998, 1999 Nicolas Souchu
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  * $FreeBSD: src/sys/dev/ppbus/ppbconf.h,v 1.17.2.1 2000/05/24 00:20:57 n_hibma Exp $
     29  *
     30  */
     31 #ifndef __PPBUS_CONF_H
     32 #define __PPBUS_CONF_H
     33 
     34 #include <sys/device.h>
     35 #include <sys/lock.h>
     36 #include <sys/queue.h>
     37 
     38 #include <machine/bus.h>
     39 
     40 #include <dev/ppbus/ppbus_msq.h>
     41 #include <dev/ppbus/ppbus_device.h>
     42 
     43 
     44 /* Function pointer types used for interface */
     45 typedef u_char (*PARPORT_IO_T)(struct device *, int, u_char *, int, u_char);
     46 typedef int (*PARPORT_EXEC_MICROSEQ_T)(struct device *,
     47 	struct ppbus_microseq **);
     48 typedef void (*PARPORT_RESET_EPP_TIMEOUT_T)(struct device *);
     49 typedef int (*PARPORT_SETMODE_T)(struct device *, int);
     50 typedef int (*PARPORT_GETMODE_T)(struct device *);
     51 typedef void (*PARPORT_ECP_SYNC_T)(struct device *);
     52 typedef int (*PARPORT_READ_T)(struct device *, char *, int, int, size_t *);
     53 typedef int (*PARPORT_WRITE_T)(struct device *, char *, int, int, size_t *);
     54 typedef int (*PARPORT_READ_IVAR_T)(struct device *, int, unsigned int *);
     55 typedef int (*PARPORT_WRITE_IVAR_T)(struct device *, int, unsigned int *);
     56 typedef int (*PARPORT_DMA_MALLOC_T)(struct device *, caddr_t *, bus_addr_t *,
     57 	bus_size_t);
     58 typedef void (*PARPORT_DMA_FREE_T)(struct device *, caddr_t *, bus_addr_t *,
     59 	bus_size_t);
     60 typedef int (*PARPORT_ADD_HANDLER_T)(struct device *, void (*)(void *),
     61 	void *);
     62 typedef int (*PARPORT_REMOVE_HANDLER_T)(struct device *, void (*)(void *));
     63 
     64 /* Adapter structure that each parport device needs to implement ppbus */
     65 struct parport_adapter {
     66 	u_int16_t capabilities;
     67 
     68 	/* Functions which make up interface */
     69 	PARPORT_IO_T parport_io;
     70 	PARPORT_EXEC_MICROSEQ_T parport_exec_microseq;
     71 	PARPORT_RESET_EPP_TIMEOUT_T parport_reset_epp_timeout;
     72 	PARPORT_SETMODE_T parport_setmode;
     73 	PARPORT_GETMODE_T parport_getmode;
     74 	PARPORT_ECP_SYNC_T parport_ecp_sync;
     75 	PARPORT_READ_T parport_read;
     76 	PARPORT_WRITE_T parport_write;
     77 	PARPORT_READ_IVAR_T parport_read_ivar;
     78 	PARPORT_WRITE_IVAR_T parport_write_ivar;
     79 	PARPORT_DMA_MALLOC_T parport_dma_malloc;
     80 	PARPORT_DMA_FREE_T parport_dma_free;
     81 	PARPORT_ADD_HANDLER_T parport_add_handler;
     82 	PARPORT_REMOVE_HANDLER_T parport_remove_handler;
     83 };
     84 
     85 /* Parallel Port Bus configuration structure. */
     86 struct ppbus_softc {
     87 	struct device sc_dev;
     88 
     89 	/* Lock for critical section when requesting/releasing the bus */
     90 	struct lock sc_lock;
     91 
     92 #define PPBUS_OK 1
     93 #define PPBUS_NOK 0
     94 	u_int8_t sc_dev_ok;
     95 
     96 	/* ppbus capabilities (see ppbus_var.h) */
     97 	u_int16_t sc_capabilities;
     98 
     99 /* PnP device type defined in ppbus_var.h */
    100 	int sc_class_id;		/* not a PnP device if class_id < 0 */
    101 
    102 	/* Defined in pbus_1284.h: error and host side state. */
    103 	u_int32_t sc_1284_state;	/* current IEEE1284 state */
    104 	u_int32_t sc_1284_error;	/* last IEEE1284 error */
    105 
    106 	/* Use IEEE 1284 negotiations in mode changes and direction changes */
    107 	u_int32_t sc_use_ieee;
    108 
    109 /* PPBUS mode masks defined in ppbus_var.h. */
    110 	u_int32_t sc_mode;		/* IEEE 1284-1994 mode */
    111 
    112 	/* ppbus_device which owns the bus */
    113 	struct device * ppbus_owner;
    114 
    115 	/* Head of list of child devices */
    116 	SLIST_HEAD(childlist, ppbus_device_softc) sc_childlist_head;
    117 
    118 	/* Functions which make up interface */
    119 	PARPORT_IO_T ppbus_io;
    120 	PARPORT_EXEC_MICROSEQ_T ppbus_exec_microseq;
    121 	PARPORT_RESET_EPP_TIMEOUT_T ppbus_reset_epp_timeout;
    122 	PARPORT_SETMODE_T ppbus_setmode;
    123 	PARPORT_GETMODE_T ppbus_getmode;
    124 	PARPORT_ECP_SYNC_T ppbus_ecp_sync;
    125 	PARPORT_READ_T ppbus_read;
    126 	PARPORT_WRITE_T ppbus_write;
    127         PARPORT_READ_IVAR_T ppbus_read_ivar;
    128         PARPORT_WRITE_IVAR_T ppbus_write_ivar;
    129 	PARPORT_DMA_MALLOC_T ppbus_dma_malloc;
    130 	PARPORT_DMA_FREE_T ppbus_dma_free;
    131 	PARPORT_ADD_HANDLER_T ppbus_add_handler;
    132 	PARPORT_REMOVE_HANDLER_T ppbus_remove_handler;
    133 };
    134 
    135 #endif
    136