1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * rt5677-spi.h  --  RT5677 ALSA SoC audio codec driver
 4 *
 5 * Copyright 2013 Realtek Semiconductor Corp.
 6 * Author: Oder Chiou <oder_chiou@realtek.com>
 
 
 
 
 7 */
 8
 9#ifndef __RT5677_SPI_H__
10#define __RT5677_SPI_H__
11
12#if IS_ENABLED(CONFIG_SND_SOC_RT5677_SPI)
13int rt5677_spi_read(u32 addr, void *rxbuf, size_t len);
14int rt5677_spi_write(u32 addr, const void *txbuf, size_t len);
15int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw);
16void rt5677_spi_hotword_detected(void);
17#else
18static inline int rt5677_spi_read(u32 addr, void *rxbuf, size_t len)
19{
20	return -EINVAL;
21}
22static inline int rt5677_spi_write(u32 addr, const void *txbuf, size_t len)
23{
24	return -EINVAL;
25}
26static inline int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw)
27{
28	return -EINVAL;
29}
30static inline void rt5677_spi_hotword_detected(void){}
31#endif
32
33#endif /* __RT5677_SPI_H__ */

 
 1/*
 2 * rt5677-spi.h  --  RT5677 ALSA SoC audio codec driver
 3 *
 4 * Copyright 2013 Realtek Semiconductor Corp.
 5 * Author: Oder Chiou <oder_chiou@realtek.com>
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License version 2 as
 9 * published by the Free Software Foundation.
10 */
11
12#ifndef __RT5677_SPI_H__
13#define __RT5677_SPI_H__
14
 
15int rt5677_spi_read(u32 addr, void *rxbuf, size_t len);
16int rt5677_spi_write(u32 addr, const void *txbuf, size_t len);
17int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
18
19#endif /* __RT5677_SPI_H__ */