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/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* PWM control module for IT83xx. */
#ifndef __CROS_EC_PWM_CHIP_H
#define __CROS_EC_PWM_CHIP_H
/* Data structure to define PWM channel control registers. */
struct pwm_ctrl_t {
/* PWM channel output duty register. */
volatile uint8_t *pwm_duty;
/* PWM channel clock source selection register. */
volatile uint8_t *pwm_clock_source;
/* PWM channel pin control register. */
volatile uint8_t *pwm_pin;
};
/* Data structure to define PWM channel control registers part 2. */
struct pwm_ctrl_t2 {
/* PWM cycle time register. */
volatile uint8_t *pwm_cycle_time;
/* PWM channel clock prescaler register (LSB). */
volatile uint8_t *pwm_cpr_lsb;
/* PWM channel clock prescaler register (MSB). */
volatile uint8_t *pwm_cpr_msb;
/* PWM prescaler clock frequency select register. */
volatile uint8_t *pwm_pcfsr_reg;
/* PWM prescaler clock frequency select register setting. */
uint8_t pwm_pcfsr_ctrl;
};
/* Data structure to define PWM channels. */
struct pwm_t {
/* PWM channel ID */
int channel;
/* PWM channel flags. See include/pwm.h */
uint32_t flags;
};
extern const struct pwm_t pwm_channels[];
#endif /* __CROS_EC_PWM_CHIP_H */
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