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/* Copyright 2017 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.
*/
/* MEC1701H-specific PWM module for Chrome EC */
#ifndef __CROS_EC_PWM_CHIP_H
#define __CROS_EC_PWM_CHIP_H
/*
* MEC152x SZ 144-pin has 9 PWM and 4 TACH
* MEC170x SZ 144-pin has 9 PWM and 3 TACH
* MEC172x SZ 144-pin has 9 PWM and 4 TACH
*/
enum pwm_hw_id {
PWM_HW_CH_0 = 0,
PWM_HW_CH_1,
PWM_HW_CH_2,
PWM_HW_CH_3,
PWM_HW_CH_4,
PWM_HW_CH_5,
PWM_HW_CH_6,
PWM_HW_CH_7,
PWM_HW_CH_8,
PWM_HW_CH_COUNT
};
enum tach_hw_id {
TACH_HW_CH_0 = 0,
TACH_HW_CH_1,
TACH_HW_CH_2,
#ifndef CHIP_FAMILY_MEC170X
TACH_HW_CH_3,
#endif
TACH_HW_CH_COUNT
};
/* 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[];
void pwm_keep_awake(void);
#endif /* __CROS_EC_PWM_CHIP_H */
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