mirror of https://github.com/thesofproject/sof.git
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2022 Intel Corporation. All rights reserved.
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*/
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#ifndef __ZEPHYR_RTOS_CLK_H__
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#define __ZEPHYR_RTOS_CLK_H__
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#include <zephyr/kernel.h>
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/* TODO remove once drivers upstream */
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#define __SOF_LIB_CLK_H__
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#include <platform/lib/clk.h>
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/* TODO: most of the below is tied to the CLK drivers that need wrapped */
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#include <sof/sof.h>
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#include <rtos/spinlock.h>
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#include <stdbool.h>
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#include <stdint.h>
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struct timer;
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#define CLOCK_NOTIFY_PRE 0
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#define CLOCK_NOTIFY_POST 1
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struct clock_notify_data {
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uint32_t old_freq;
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uint32_t old_ticks_per_msec;
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uint32_t freq;
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uint32_t ticks_per_msec;
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uint32_t message;
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};
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struct freq_table {
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uint32_t freq;
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uint32_t ticks_per_msec;
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};
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struct clock_info {
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uint32_t freqs_num;
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const struct freq_table *freqs;
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uint32_t default_freq_idx;
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uint32_t current_freq_idx;
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uint32_t lowest_freq_idx; /* lowest possible clock */
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uint32_t notification_id;
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uint32_t notification_mask;
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struct k_spinlock lock;
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/* persistent change clock value in active state */
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int (*set_freq)(int clock, int freq_idx);
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/* temporary change clock - don't modify default clock settings */
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void (*low_power_mode)(int clock, bool enable);
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};
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uint32_t clock_get_freq(int clock);
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void clock_set_freq(int clock, uint32_t hz);
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void clock_low_power_mode(int clock, bool enable);
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uint64_t clock_ticks_per_sample(int clock, uint32_t sample_rate);
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static inline struct clock_info *clocks_get(void)
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{
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return sof_get()->clocks;
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}
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#endif /* __ZEPHYR_RTOS_CLK_H__ */
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