mirror of
https://xff.cz/git/u-boot/
synced 2025-09-04 18:22:02 +02:00
58 lines
1.3 KiB
C
Executable File
58 lines
1.3 KiB
C
Executable File
/*
|
|
* header file for pwm driver.
|
|
*
|
|
* Copyright (c) 2011 samsung electronics
|
|
* Donghwa Lee <dh09.lee@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _pwm_h_
|
|
#define _pwm_h_
|
|
#if 0
|
|
int pwm_init (int pwm_id, int div, int invert);
|
|
int pwm_config (int pwm_id, int duty_ns, int period_ns);
|
|
int pwm_enable (int pwm_id);
|
|
void pwm_disable (int pwm_id);
|
|
#endif
|
|
enum pwm_polarity {
|
|
PWM_POLARITY_NORMAL,
|
|
PWM_POLARITY_INVERSED,
|
|
};
|
|
|
|
struct pwm_device {
|
|
const char *label;
|
|
unsigned long flags;
|
|
unsigned int hwpwm;
|
|
unsigned int pwm;
|
|
struct pwm_chip *chip;
|
|
void *chip_data;
|
|
|
|
unsigned int period; /* in nanoseconds */
|
|
};
|
|
|
|
struct pwm_chip {
|
|
struct device *dev;
|
|
struct list_head list;
|
|
const struct pwm_ops *ops;
|
|
int base;
|
|
unsigned int npwm;
|
|
|
|
struct pwm_device *pwms;
|
|
|
|
//struct pwm_device * (*of_xlate)(struct pwm_chip *pc,
|
|
// const struct of_phandle_args *args);
|
|
unsigned int of_pwm_n_cells;
|
|
bool can_sleep;
|
|
};
|
|
|
|
/* it mapping uboot2014 verison.now just only SUN50IW1P1 use this function,*/
|
|
int pwm_set_polarity(int pwm, enum pwm_polarity polarity);
|
|
int pwm_config (int pwm, int duty_ns, int period_ns);
|
|
int pwm_enable (int pwm);
|
|
int pwm_disable (int pwm);
|
|
int pwm_init (void);
|
|
int pwm_request(int pwm, const char *label);
|
|
|
|
#endif /* _pwm_h_ */
|