2 * Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
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 */
37 device_t dev; /* pccard device */
38 struct cdev *cdev; /* character device */
40 struct resource *ioport; /* io port resource descriptor */
41 int ioport_rid; /* io port resource identification */
43 bus_space_tag_t bst; /* bus space tag */
44 bus_space_handle_t bsh; /* bus space handle */
47 struct resource* irq; /* irq resource descriptor */
48 int irq_rid; /* irq resource identification */
49 void *ih; /* intr handle */
52 struct mtx mtx; /* per-unit lock */
53 struct callout ch; /* callout handle */
54 struct selinfo sel; /* select/poll queue handle */
56 int open; /* is chardev open? */
57 int polling; /* are we polling? */
58 int dying; /* are we detaching? */
60 unsigned long timeout; /* response timeout */
62 uint8_t buf[CMX_BUFSZ]; /* read/write buffer */
65 extern devclass_t cmx_devclass;
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);
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))
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)
91 #define cmx_test(byte, flags, test) \
92 (((byte) & (flags)) == ((test) ? (flags) : 0))
94 #define cmx_test_BSR(sc, flags, test) \
95 cmx_test(cmx_read_BSR(sc), flags, test)
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))