b8b7c0dda9
Expose softc and other necessary things in a separate header. This is needed for an armv8 specific driver, that will inherit from this one. Driver mutex was converted to a spin lock, so that it can be later used in interrupt filter context. Obtained from: Semihalf Sponsored by: Alstom Group Differential revision: https://reviews.freebsd.org/D32587
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2020 Alstom Group.
|
|
* Copyright (c) 2020 Semihalf.
|
|
* Copyright (c) 2015 Justin Hibbits
|
|
* 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 MAXPIN (31)
|
|
|
|
#define BIT(x) (1 << (x))
|
|
|
|
#define VALID_PIN(u) ((u) >= 0 && (u) <= MAXPIN)
|
|
#define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | \
|
|
GPIO_PIN_OPENDRAIN | GPIO_PIN_PUSHPULL)
|
|
|
|
#define GPIO_LOCK(sc) mtx_lock_spin(&(sc)->sc_mtx)
|
|
#define GPIO_UNLOCK(sc) mtx_unlock_spin(&(sc)->sc_mtx)
|
|
#define GPIO_LOCK_INIT(sc) \
|
|
mtx_init(&(sc)->sc_mtx, device_get_nameunit((sc)->dev), \
|
|
"gpio", MTX_SPIN)
|
|
#define GPIO_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx);
|
|
|
|
#define GPIO_GPDIR 0x0
|
|
#define GPIO_GPODR 0x4
|
|
#define GPIO_GPDAT 0x8
|
|
#define GPIO_GPIER 0xc
|
|
#define GPIO_GPIMR 0x10
|
|
#define GPIO_GPICR 0x14
|
|
#define GPIO_GPIBE 0x18
|
|
|
|
struct qoriq_gpio_softc {
|
|
device_t dev;
|
|
device_t busdev;
|
|
struct mtx sc_mtx;
|
|
struct resource *sc_mem;
|
|
struct gpio_pin sc_pins[MAXPIN + 1];
|
|
};
|
|
|
|
device_attach_t qoriq_gpio_attach;
|
|
device_detach_t qoriq_gpio_detach;
|
|
|
|
DECLARE_CLASS(qoriq_gpio_driver);
|