The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/dev/ppbus/ppbus_conf.h

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    1 /* $NetBSD: ppbus_conf.h,v 1.11 2008/04/29 14:07:37 cegger 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 "gpio.h"
   35 
   36 #include <sys/device.h>
   37 #include <sys/mutex.h>
   38 #include <sys/queue.h>
   39 
   40 #include <sys/bus.h>
   41 
   42 #include <dev/ppbus/ppbus_msq.h>
   43 #include <dev/ppbus/ppbus_device.h>
   44 
   45 #if NGPIO > 0
   46 #include <dev/gpio/gpiovar.h>
   47 #define PPBUS_NPINS 17
   48 #endif
   49 
   50 /* Function pointer types used for interface */
   51 typedef u_char (*PARPORT_IO_T)(device_t, int, u_char *, int, u_char);
   52 typedef int (*PARPORT_EXEC_MICROSEQ_T)(device_t,
   53         struct ppbus_microseq **);
   54 typedef void (*PARPORT_RESET_EPP_TIMEOUT_T)(device_t);
   55 typedef int (*PARPORT_SETMODE_T)(device_t, int);
   56 typedef int (*PARPORT_GETMODE_T)(device_t);
   57 typedef void (*PARPORT_ECP_SYNC_T)(device_t);
   58 typedef int (*PARPORT_READ_T)(device_t, char *, int, int, size_t *);
   59 typedef int (*PARPORT_WRITE_T)(device_t, char *, int, int, size_t *);
   60 typedef int (*PARPORT_READ_IVAR_T)(device_t, int, unsigned int *);
   61 typedef int (*PARPORT_WRITE_IVAR_T)(device_t, int, unsigned int *);
   62 typedef int (*PARPORT_DMA_MALLOC_T)(device_t, void **, bus_addr_t *,
   63         bus_size_t);
   64 typedef void (*PARPORT_DMA_FREE_T)(device_t, void **, bus_addr_t *,
   65         bus_size_t);
   66 typedef int (*PARPORT_ADD_HANDLER_T)(device_t, void (*)(void *),
   67         void *);
   68 typedef int (*PARPORT_REMOVE_HANDLER_T)(device_t, void (*)(void *));
   69 
   70 /* Adapter structure that each parport device needs to implement ppbus */
   71 struct parport_adapter {
   72         u_int16_t capabilities;
   73 
   74         /* Functions which make up interface */
   75         PARPORT_IO_T parport_io;
   76         PARPORT_EXEC_MICROSEQ_T parport_exec_microseq;
   77         PARPORT_RESET_EPP_TIMEOUT_T parport_reset_epp_timeout;
   78         PARPORT_SETMODE_T parport_setmode;
   79         PARPORT_GETMODE_T parport_getmode;
   80         PARPORT_ECP_SYNC_T parport_ecp_sync;
   81         PARPORT_READ_T parport_read;
   82         PARPORT_WRITE_T parport_write;
   83         PARPORT_READ_IVAR_T parport_read_ivar;
   84         PARPORT_WRITE_IVAR_T parport_write_ivar;
   85         PARPORT_DMA_MALLOC_T parport_dma_malloc;
   86         PARPORT_DMA_FREE_T parport_dma_free;
   87         PARPORT_ADD_HANDLER_T parport_add_handler;
   88         PARPORT_REMOVE_HANDLER_T parport_remove_handler;
   89 };
   90 
   91 /* Parallel Port Bus configuration structure. */
   92 struct ppbus_softc {
   93         device_t sc_dev;
   94 
   95         /* Lock for critical section when requesting/releasing the bus */
   96         kmutex_t sc_lock;
   97 
   98 #define PPBUS_OK 1
   99 #define PPBUS_NOK 0
  100         u_int8_t sc_dev_ok;
  101 
  102         /* ppbus capabilities (see ppbus_var.h) */
  103         u_int16_t sc_capabilities;
  104 
  105 /* PnP device type defined in ppbus_var.h */
  106         int sc_class_id;                /* not a PnP device if class_id < 0 */
  107 
  108         /* Defined in pbus_1284.h: error and host side state. */
  109         u_int32_t sc_1284_state;        /* current IEEE1284 state */
  110         u_int32_t sc_1284_error;        /* last IEEE1284 error */
  111 
  112         /* Use IEEE 1284 negotiations in mode changes and direction changes */
  113         u_int32_t sc_use_ieee;
  114 
  115 /* PPBUS mode masks defined in ppbus_var.h. */
  116         u_int32_t sc_mode;              /* IEEE 1284-1994 mode */
  117 
  118         /* ppbus_device which owns the bus */
  119         device_t ppbus_owner;
  120 
  121         /* Head of list of child devices */
  122         SLIST_HEAD(childlist, ppbus_device_softc) sc_childlist_head;
  123 
  124         /* Functions which make up interface */
  125         PARPORT_IO_T ppbus_io;
  126         PARPORT_EXEC_MICROSEQ_T ppbus_exec_microseq;
  127         PARPORT_RESET_EPP_TIMEOUT_T ppbus_reset_epp_timeout;
  128         PARPORT_SETMODE_T ppbus_setmode;
  129         PARPORT_GETMODE_T ppbus_getmode;
  130         PARPORT_ECP_SYNC_T ppbus_ecp_sync;
  131         PARPORT_READ_T ppbus_read;
  132         PARPORT_WRITE_T ppbus_write;
  133         PARPORT_READ_IVAR_T ppbus_read_ivar;
  134         PARPORT_WRITE_IVAR_T ppbus_write_ivar;
  135         PARPORT_DMA_MALLOC_T ppbus_dma_malloc;
  136         PARPORT_DMA_FREE_T ppbus_dma_free;
  137         PARPORT_ADD_HANDLER_T ppbus_add_handler;
  138         PARPORT_REMOVE_HANDLER_T ppbus_remove_handler;
  139 
  140 #if NGPIO > 0
  141         struct gpio_chipset_tag sc_gpio_gc;
  142         gpio_pin_t sc_gpio_pins[PPBUS_NPINS];
  143 #endif
  144 };
  145 
  146 #if NGPIO > 0
  147 void gpio_ppbus_attach(struct ppbus_softc *);
  148 #endif
  149 
  150 #endif /* __PPBUS_CONF_H */

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