rt5677-spi.h (912B)
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__ */