iomux.h

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/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright(c) 2019 Intel Corporation. All rights reserved.
 *
 * Author: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
 */
 
#ifndef __SOF_DRIVERS_IOMUX_H__
#define __SOF_DRIVERS_IOMUX_H__
 
#include <stdint.h>
 
#define IOMUX_PIN_NUM 32
 
struct iomux {
    uint32_t base;
    /* 0 -- unconfigured; > 0 -- configured for function (state - 1) */
    uint8_t pin_state[IOMUX_PIN_NUM];
};
 
struct iomux_pin_config {
    unsigned int bit;
    uint32_t mask;
    uint32_t fn;
};
 
extern struct iomux iomux_data[];
extern const int n_iomux;
 
int iomux_configure(struct iomux *iomux, const struct iomux_pin_config *cfg);
struct iomux *iomux_get(unsigned int id);
int iomux_probe(struct iomux *iomux);
 
#endif /* __SOF_DRIVERS_IOMUX_H__ */