NetBSD/sys/arch/arm/imx/imxpwmvar.h
hkenken b90407887d Add support for LCD Backlight control on NetWalker.
+ use imxpwm driver (PWM control driver for i.MX)
2014-05-06 11:22:53 +00:00

57 lines
2.0 KiB
C

/* $NetBSD: imxpwmvar.h,v 1.1 2014/05/06 11:22:53 hkenken Exp $ */
/*
* Copyright (c) 2014 Genetec Corporation. All rights reserved.
* Written by Hashimoto Kenichi for Genetec Corporation.
*
* 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 GENETEC CORPORATION ``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 GENETEC CORPORATION
* 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.
*/
#ifndef _ARM_IMX_IMXPWMVAR_H_
#define _ARM_IMX_IMXPWMVAR_H_
struct imxpwm_softc {
device_t sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
int sc_intr;
void *sc_ih;
long sc_freq;
long sc_hz;
#define IMXPWM_DEFAULT_HZ 1000
long sc_cycle;
int sc_duty;
#define IMXPWM_DUTY_MAX 1000
int (*sc_handler)(void *);
void *sc_cookie;
};
int imxpwm_match(device_t, cfdata_t, void *);
void imxpwm_attach(struct imxpwm_softc *, void *);
void imxpwm_attach_common(struct imxpwm_softc *);
int imxpwm_set_pwm(struct imxpwm_softc *, int);
#endif /* _ARM_IMX_IMXPWMVAR_H_ */