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 1.12 2011/02/18 21:38:17 phx 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/gpio.h>
   38 #include <sys/mutex.h>
   39 #include <sys/queue.h>
   40 
   41 #include <sys/bus.h>
   42 
   43 #include <dev/ppbus/ppbus_msq.h>
   44 #include <dev/ppbus/ppbus_device.h>
   45 
   46 #if NGPIO > 0
   47 #include <dev/gpio/gpiovar.h>
   48 #define PPBUS_NPINS 17
   49 #endif
   50 
   51 /* Function pointer types used for interface */
   52 typedef u_char (*PARPORT_IO_T)(device_t, int, u_char *, int, u_char);
   53 typedef int (*PARPORT_EXEC_MICROSEQ_T)(device_t,
   54         struct ppbus_microseq **);
   55 typedef void (*PARPORT_RESET_EPP_TIMEOUT_T)(device_t);
   56 typedef int (*PARPORT_SETMODE_T)(device_t, int);
   57 typedef int (*PARPORT_GETMODE_T)(device_t);
   58 typedef void (*PARPORT_ECP_SYNC_T)(device_t);
   59 typedef int (*PARPORT_READ_T)(device_t, char *, int, int, size_t *);
   60 typedef int (*PARPORT_WRITE_T)(device_t, char *, int, int, size_t *);
   61 typedef int (*PARPORT_READ_IVAR_T)(device_t, int, unsigned int *);
   62 typedef int (*PARPORT_WRITE_IVAR_T)(device_t, int, unsigned int *);
   63 typedef int (*PARPORT_DMA_MALLOC_T)(device_t, void **, bus_addr_t *,
   64         bus_size_t);
   65 typedef void (*PARPORT_DMA_FREE_T)(device_t, void **, bus_addr_t *,
   66         bus_size_t);
   67 typedef int (*PARPORT_ADD_HANDLER_T)(device_t, void (*)(void *),
   68         void *);
   69 typedef int (*PARPORT_REMOVE_HANDLER_T)(device_t, void (*)(void *));
   70 
   71 /* Adapter structure that each parport device needs to implement ppbus */
   72 struct parport_adapter {
   73         u_int16_t capabilities;
   74 
   75         /* Functions which make up interface */
   76         PARPORT_IO_T parport_io;
   77         PARPORT_EXEC_MICROSEQ_T parport_exec_microseq;
   78         PARPORT_RESET_EPP_TIMEOUT_T parport_reset_epp_timeout;
   79         PARPORT_SETMODE_T parport_setmode;
   80         PARPORT_GETMODE_T parport_getmode;
   81         PARPORT_ECP_SYNC_T parport_ecp_sync;
   82         PARPORT_READ_T parport_read;
   83         PARPORT_WRITE_T parport_write;
   84         PARPORT_READ_IVAR_T parport_read_ivar;
   85         PARPORT_WRITE_IVAR_T parport_write_ivar;
   86         PARPORT_DMA_MALLOC_T parport_dma_malloc;
   87         PARPORT_DMA_FREE_T parport_dma_free;
   88         PARPORT_ADD_HANDLER_T parport_add_handler;
   89         PARPORT_REMOVE_HANDLER_T parport_remove_handler;
   90 };
   91 
   92 /* Parallel Port Bus configuration structure. */
   93 struct ppbus_softc {
   94         device_t sc_dev;
   95 
   96         /* Lock for critical section when requesting/releasing the bus */
   97         kmutex_t sc_lock;
   98 
   99 #define PPBUS_OK 1
  100 #define PPBUS_NOK 0
  101         u_int8_t sc_dev_ok;
  102 
  103         /* ppbus capabilities (see ppbus_var.h) */
  104         u_int16_t sc_capabilities;
  105 
  106 /* PnP device type defined in ppbus_var.h */
  107         int sc_class_id;                /* not a PnP device if class_id < 0 */
  108 
  109         /* Defined in pbus_1284.h: error and host side state. */
  110         u_int32_t sc_1284_state;        /* current IEEE1284 state */
  111         u_int32_t sc_1284_error;        /* last IEEE1284 error */
  112 
  113         /* Use IEEE 1284 negotiations in mode changes and direction changes */
  114         u_int32_t sc_use_ieee;
  115 
  116 /* PPBUS mode masks defined in ppbus_var.h. */
  117         u_int32_t sc_mode;              /* IEEE 1284-1994 mode */
  118 
  119         /* ppbus_device which owns the bus */
  120         device_t ppbus_owner;
  121 
  122         /* Head of list of child devices */
  123         SLIST_HEAD(childlist, ppbus_device_softc) sc_childlist_head;
  124 
  125         /* Functions which make up interface */
  126         PARPORT_IO_T ppbus_io;
  127         PARPORT_EXEC_MICROSEQ_T ppbus_exec_microseq;
  128         PARPORT_RESET_EPP_TIMEOUT_T ppbus_reset_epp_timeout;
  129         PARPORT_SETMODE_T ppbus_setmode;
  130         PARPORT_GETMODE_T ppbus_getmode;
  131         PARPORT_ECP_SYNC_T ppbus_ecp_sync;
  132         PARPORT_READ_T ppbus_read;
  133         PARPORT_WRITE_T ppbus_write;
  134         PARPORT_READ_IVAR_T ppbus_read_ivar;
  135         PARPORT_WRITE_IVAR_T ppbus_write_ivar;
  136         PARPORT_DMA_MALLOC_T ppbus_dma_malloc;
  137         PARPORT_DMA_FREE_T ppbus_dma_free;
  138         PARPORT_ADD_HANDLER_T ppbus_add_handler;
  139         PARPORT_REMOVE_HANDLER_T ppbus_remove_handler;
  140 
  141 #if NGPIO > 0
  142         struct gpio_chipset_tag sc_gpio_gc;
  143         gpio_pin_t sc_gpio_pins[PPBUS_NPINS];
  144 #endif
  145 };
  146 
  147 #if NGPIO > 0
  148 void gpio_ppbus_attach(struct ppbus_softc *);
  149 #endif
  150 
  151 #endif /* __PPBUS_CONF_H */

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