diff options
Diffstat (limited to 'include/pwm.h')
| -rw-r--r-- | include/pwm.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/pwm.h b/include/pwm.h index f24f2202f48..851915eb87a 100644 --- a/include/pwm.h +++ b/include/pwm.h @@ -1,6 +1,7 @@ /* * header file for pwm driver. * + * Copyright 2016 Google Inc. * Copyright (c) 2011 samsung electronics * Donghwa Lee <dh09.lee@samsung.com> * @@ -10,9 +11,61 @@ #ifndef _pwm_h_ #define _pwm_h_ +/* struct pwm_ops: Operations for the PWM uclass */ +struct pwm_ops { + /** + * set_config() - Set the PWM configuration + * + * @dev: PWM device to update + * @channel: PWM channel to update + * @period_ns: PWM period in nanoseconds + * @duty_ns: PWM duty period in nanoseconds + * @return 0 if OK, -ve on error + */ + int (*set_config)(struct udevice *dev, uint channel, uint period_ns, + uint duty_ns); + + /** + * set_enable() - Enable or disable the PWM + * + * @dev: PWM device to update + * @channel: PWM channel to update + * @enable: true to enable, false to disable + * @return 0 if OK, -ve on error + */ + int (*set_enable)(struct udevice *dev, uint channel, bool enable); +}; + +#define pwm_get_ops(dev) ((struct pwm_ops *)(dev)->driver->ops) + +/** + * pwm_set_config() - Set the PWM configuration + * + * @dev: PWM device to update + * @channel: PWM channel to update + * @period_ns: PWM period in nanoseconds + * @duty_ns: PWM duty period in nanoseconds + * @return 0 if OK, -ve on error + */ +int pwm_set_config(struct udevice *dev, uint channel, uint period_ns, + uint duty_ns); + +/** + * pwm_set_enable() - Enable or disable the PWM + * + * @dev: PWM device to update + * @channel: PWM channel to update + * @enable: true to enable, false to disable + * @return 0 if OK, -ve on error + */ +int pwm_set_enable(struct udevice *dev, uint channel, bool enable); + +/* Legacy interface */ +#ifndef CONFIG_DM_PWM 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 #endif /* _pwm_h_ */ |