freebsd-dev/sys/dev/cmx/cmxvar.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

102 lines
3.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2006-2007 Daniel Roethlisberger <daniel@roe.ch>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*#define CMX_DEBUG*/
/*#define CMX_INTR*/
#define CMX_MIN_RDLEN 10 /* min read length */
#define CMX_MIN_WRLEN 5 /* min write length */
#define CMX_BUFSZ 512 /* I/O block size */
struct cmx_softc {
device_t dev; /* pccard device */
struct cdev *cdev; /* character device */
struct resource *ioport; /* io port resource descriptor */
int ioport_rid; /* io port resource identification */
bus_space_tag_t bst; /* bus space tag */
bus_space_handle_t bsh; /* bus space handle */
#ifdef CMX_INTR
struct resource* irq; /* irq resource descriptor */
int irq_rid; /* irq resource identification */
void *ih; /* intr handle */
#endif
struct mtx mtx; /* per-unit lock */
struct callout ch; /* callout handle */
struct selinfo sel; /* select/poll queue handle */
int open; /* is chardev open? */
int polling; /* are we polling? */
int dying; /* are we detaching? */
unsigned long timeout; /* response timeout */
uint8_t buf[CMX_BUFSZ]; /* read/write buffer */
};
extern devclass_t cmx_devclass;
void cmx_init_softc(device_t);
int cmx_alloc_resources(device_t);
void cmx_release_resources(device_t);
int cmx_attach(device_t);
int cmx_detach(device_t);
#define CMX_READ_1(sc, off) \
(bus_space_read_1((sc)->bst, (sc)->bsh, off))
#define CMX_WRITE_1(sc, off, val) \
(bus_space_write_1((sc)->bst, (sc)->bsh, off, val))
#define cmx_read_BSR(sc) \
CMX_READ_1(sc, REG_OFFSET_BSR)
#define cmx_write_BSR(sc, val) \
CMX_WRITE_1(sc, REG_OFFSET_BSR, val)
#define cmx_read_SCR(sc) \
CMX_READ_1(sc, REG_OFFSET_SCR)
#define cmx_write_SCR(sc, val) \
CMX_WRITE_1(sc, REG_OFFSET_SCR, val)
#define cmx_read_DTR(sc) \
CMX_READ_1(sc, REG_OFFSET_DTR)
#define cmx_write_DTR(sc, val) \
CMX_WRITE_1(sc, REG_OFFSET_DTR, val)
#define cmx_test(byte, flags, test) \
(((byte) & (flags)) == ((test) ? (flags) : 0))
#define cmx_test_BSR(sc, flags, test) \
cmx_test(cmx_read_BSR(sc), flags, test)
#define CMX_LOCK(sc) mtx_lock(&(sc)->mtx)
#define CMX_UNLOCK(sc) mtx_unlock(&(sc)->mtx)
#define CMX_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->mtx, (what))