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)
13 int rt5677_spi_read(u32 addr, void *rxbuf, size_t len);
14 int rt5677_spi_write(u32 addr, const void *txbuf, size_t len);
15 int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw);
16 void rt5677_spi_hotword_detected(void);
17 #else
18 static inline int rt5677_spi_read(u32 addr, void *rxbuf, size_t len)
19 {
20 return -EINVAL;
21 }
22 static inline int rt5677_spi_write(u32 addr, const void *txbuf, size_t len)
23 {
24 return -EINVAL;
25 }
26 static inline int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw)
27 {
28 return -EINVAL;
29 }
30 static inline void rt5677_spi_hotword_detected(void){}
31 #endif
32
33 #endif /* __RT5677_SPI_H__ */
34
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