44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2007 Atmel Corporation
|
||
|
|
*
|
||
|
|
* Driver for the AT32AP700X PS/2 controller (PSIF).
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 as published
|
||
|
|
* by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __INCLUDE_ATMEL_PWM_BL_H
|
||
|
|
#define __INCLUDE_ATMEL_PWM_BL_H
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct atmel_pwm_bl_platform_data
|
||
|
|
* @pwm_channel: which PWM channel in the PWM module to use.
|
||
|
|
* @pwm_frequency: PWM frequency to generate, the driver will try to be as
|
||
|
|
* close as the prescaler allows.
|
||
|
|
* @pwm_compare_max: value to use in the PWM channel compare register.
|
||
|
|
* @pwm_duty_max: maximum duty cycle value, must be less than or equal to
|
||
|
|
* pwm_compare_max.
|
||
|
|
* @pwm_duty_min: minimum duty cycle value, must be less than pwm_duty_max.
|
||
|
|
* @pwm_active_low: set to one if the low part of the PWM signal increases the
|
||
|
|
* brightness of the backlight.
|
||
|
|
* @gpio_on: GPIO line to control the backlight on/off, set to -1 if not used.
|
||
|
|
* @on_active_low: set to one if the on/off signal is on when GPIO is low.
|
||
|
|
*
|
||
|
|
* This struct must be added to the platform device in the board code. It is
|
||
|
|
* used by the atmel-pwm-bl driver to setup the GPIO to control on/off and the
|
||
|
|
* PWM device.
|
||
|
|
*/
|
||
|
|
struct atmel_pwm_bl_platform_data {
|
||
|
|
unsigned int pwm_channel;
|
||
|
|
unsigned int pwm_frequency;
|
||
|
|
unsigned int pwm_compare_max;
|
||
|
|
unsigned int pwm_duty_max;
|
||
|
|
unsigned int pwm_duty_min;
|
||
|
|
unsigned int pwm_active_low;
|
||
|
|
int gpio_on;
|
||
|
|
unsigned int on_active_low;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __INCLUDE_ATMEL_PWM_BL_H */
|