1 /*- 2 * Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/9/sys/dev/cmx/cmxvar.h 176868 2008-03-06 08:09:45Z rink $ 27 */ 28 29 /*#define CMX_DEBUG*/ 30 /*#define CMX_INTR*/ 31 32 #define CMX_MIN_RDLEN 10 /* min read length */ 33 #define CMX_MIN_WRLEN 5 /* min write length */ 34 #define CMX_BUFSZ 512 /* I/O block size */ 35 36 struct cmx_softc { 37 device_t dev; /* pccard device */ 38 struct cdev *cdev; /* character device */ 39 40 struct resource *ioport; /* io port resource descriptor */ 41 int ioport_rid; /* io port resource identification */ 42 43 bus_space_tag_t bst; /* bus space tag */ 44 bus_space_handle_t bsh; /* bus space handle */ 45 46 #ifdef CMX_INTR 47 struct resource* irq; /* irq resource descriptor */ 48 int irq_rid; /* irq resource identification */ 49 void *ih; /* intr handle */ 50 #endif 51 52 struct mtx mtx; /* per-unit lock */ 53 struct callout ch; /* callout handle */ 54 struct selinfo sel; /* select/poll queue handle */ 55 56 int open; /* is chardev open? */ 57 int polling; /* are we polling? */ 58 int dying; /* are we detaching? */ 59 60 unsigned long timeout; /* response timeout */ 61 62 uint8_t buf[CMX_BUFSZ]; /* read/write buffer */ 63 }; 64 65 extern devclass_t cmx_devclass; 66 67 void cmx_init_softc(device_t); 68 int cmx_alloc_resources(device_t); 69 void cmx_release_resources(device_t); 70 int cmx_attach(device_t); 71 int cmx_detach(device_t); 72 73 #define CMX_READ_1(sc, off) \ 74 (bus_space_read_1((sc)->bst, (sc)->bsh, off)) 75 #define CMX_WRITE_1(sc, off, val) \ 76 (bus_space_write_1((sc)->bst, (sc)->bsh, off, val)) 77 78 #define cmx_read_BSR(sc) \ 79 CMX_READ_1(sc, REG_OFFSET_BSR) 80 #define cmx_write_BSR(sc, val) \ 81 CMX_WRITE_1(sc, REG_OFFSET_BSR, val) 82 #define cmx_read_SCR(sc) \ 83 CMX_READ_1(sc, REG_OFFSET_SCR) 84 #define cmx_write_SCR(sc, val) \ 85 CMX_WRITE_1(sc, REG_OFFSET_SCR, val) 86 #define cmx_read_DTR(sc) \ 87 CMX_READ_1(sc, REG_OFFSET_DTR) 88 #define cmx_write_DTR(sc, val) \ 89 CMX_WRITE_1(sc, REG_OFFSET_DTR, val) 90 91 #define cmx_test(byte, flags, test) \ 92 (((byte) & (flags)) == ((test) ? (flags) : 0)) 93 94 #define cmx_test_BSR(sc, flags, test) \ 95 cmx_test(cmx_read_BSR(sc), flags, test) 96 97 #define CMX_LOCK(sc) mtx_lock(&(sc)->mtx) 98 #define CMX_UNLOCK(sc) mtx_unlock(&(sc)->mtx) 99 #define CMX_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->mtx, (what)) 100