1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch> 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: stable/12/sys/dev/cmx/cmxvar.h 326255 2017-11-27 14:52:40Z pfg $ 29 */ 30 31 /*#define CMX_DEBUG*/ 32 /*#define CMX_INTR*/ 33 34 #define CMX_MIN_RDLEN 10 /* min read length */ 35 #define CMX_MIN_WRLEN 5 /* min write length */ 36 #define CMX_BUFSZ 512 /* I/O block size */ 37 38 struct cmx_softc { 39 device_t dev; /* pccard device */ 40 struct cdev *cdev; /* character device */ 41 42 struct resource *ioport; /* io port resource descriptor */ 43 int ioport_rid; /* io port resource identification */ 44 45 bus_space_tag_t bst; /* bus space tag */ 46 bus_space_handle_t bsh; /* bus space handle */ 47 48 #ifdef CMX_INTR 49 struct resource* irq; /* irq resource descriptor */ 50 int irq_rid; /* irq resource identification */ 51 void *ih; /* intr handle */ 52 #endif 53 54 struct mtx mtx; /* per-unit lock */ 55 struct callout ch; /* callout handle */ 56 struct selinfo sel; /* select/poll queue handle */ 57 58 int open; /* is chardev open? */ 59 int polling; /* are we polling? */ 60 int dying; /* are we detaching? */ 61 62 unsigned long timeout; /* response timeout */ 63 64 uint8_t buf[CMX_BUFSZ]; /* read/write buffer */ 65 }; 66 67 extern devclass_t cmx_devclass; 68 69 void cmx_init_softc(device_t); 70 int cmx_alloc_resources(device_t); 71 void cmx_release_resources(device_t); 72 int cmx_attach(device_t); 73 int cmx_detach(device_t); 74 75 #define CMX_READ_1(sc, off) \ 76 (bus_space_read_1((sc)->bst, (sc)->bsh, off)) 77 #define CMX_WRITE_1(sc, off, val) \ 78 (bus_space_write_1((sc)->bst, (sc)->bsh, off, val)) 79 80 #define cmx_read_BSR(sc) \ 81 CMX_READ_1(sc, REG_OFFSET_BSR) 82 #define cmx_write_BSR(sc, val) \ 83 CMX_WRITE_1(sc, REG_OFFSET_BSR, val) 84 #define cmx_read_SCR(sc) \ 85 CMX_READ_1(sc, REG_OFFSET_SCR) 86 #define cmx_write_SCR(sc, val) \ 87 CMX_WRITE_1(sc, REG_OFFSET_SCR, val) 88 #define cmx_read_DTR(sc) \ 89 CMX_READ_1(sc, REG_OFFSET_DTR) 90 #define cmx_write_DTR(sc, val) \ 91 CMX_WRITE_1(sc, REG_OFFSET_DTR, val) 92 93 #define cmx_test(byte, flags, test) \ 94 (((byte) & (flags)) == ((test) ? (flags) : 0)) 95 96 #define cmx_test_BSR(sc, flags, test) \ 97 cmx_test(cmx_read_BSR(sc), flags, test) 98 99 #define CMX_LOCK(sc) mtx_lock(&(sc)->mtx) 100 #define CMX_UNLOCK(sc) mtx_unlock(&(sc)->mtx) 101 #define CMX_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->mtx, (what)) 102