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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _ZL3073X_SYNTH_H
#define _ZL3073X_SYNTH_H
#include <linux/bitfield.h>
#include <linux/math64.h>
#include <linux/types.h>
#include "regs.h"
struct zl3073x_dev;
/**
* struct zl3073x_synth - synthesizer state
* @freq_mult: frequency multiplier
* @freq_base: frequency base
* @freq_m: frequency numerator
* @freq_n: frequency denominator
* @ctrl: synth control
*/
struct zl3073x_synth {
u32 freq_mult;
u16 freq_base;
u16 freq_m;
u16 freq_n;
u8 ctrl;
};
int zl3073x_synth_state_fetch(struct zl3073x_dev *zldev, u8 synth_id);
const struct zl3073x_synth *zl3073x_synth_state_get(struct zl3073x_dev *zldev,
u8 synth_id);
int zl3073x_synth_state_set(struct zl3073x_dev *zldev, u8 synth_id,
const struct zl3073x_synth *synth);
/**
* zl3073x_synth_dpll_get - get DPLL ID the synth is driven by
* @synth: pointer to synth state
*
* Return: ID of DPLL the given synthetizer is driven by
*/
static inline u8 zl3073x_synth_dpll_get(const struct zl3073x_synth *synth)
{
return FIELD_GET(ZL_SYNTH_CTRL_DPLL_SEL, synth->ctrl);
}
/**
* zl3073x_synth_freq_get - get synth current freq
* @synth: pointer to synth state
*
* Return: frequency of given synthetizer
*/
static inline u32 zl3073x_synth_freq_get(const struct zl3073x_synth *synth)
{
return mul_u64_u32_div(synth->freq_base * synth->freq_m,
synth->freq_mult, synth->freq_n);
}
/**
* zl3073x_synth_is_enabled - check if the given synth is enabled
* @synth: pointer to synth state
*
* Return: true if synth is enabled, false otherwise
*/
static inline bool zl3073x_synth_is_enabled(const struct zl3073x_synth *synth)
{
return FIELD_GET(ZL_SYNTH_CTRL_EN, synth->ctrl);
}
#endif /* _ZL3073X_SYNTH_H */
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