173f461269
The patch uses the IRQ to copy the PCM data to userspace continuously after the hotwording triggered from DSP. Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
37 lines
979 B
C
37 lines
979 B
C
/*
|
|
* rt5514-spi.h -- RT5514 driver
|
|
*
|
|
* Copyright 2015 Realtek Semiconductor Corp.
|
|
* Author: Oder Chiou <oder_chiou@realtek.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __RT5514_SPI_H__
|
|
#define __RT5514_SPI_H__
|
|
|
|
/**
|
|
* RT5514_SPI_BUF_LEN is the buffer size of SPI master controller.
|
|
*/
|
|
#define RT5514_SPI_BUF_LEN 240
|
|
|
|
#define RT5514_BUFFER_VOICE_BASE 0x18000200
|
|
#define RT5514_BUFFER_VOICE_LIMIT 0x18000204
|
|
#define RT5514_BUFFER_VOICE_WP 0x1800020c
|
|
|
|
/* SPI Command */
|
|
enum {
|
|
RT5514_SPI_CMD_16_READ = 0,
|
|
RT5514_SPI_CMD_16_WRITE,
|
|
RT5514_SPI_CMD_32_READ,
|
|
RT5514_SPI_CMD_32_WRITE,
|
|
RT5514_SPI_CMD_BURST_READ,
|
|
RT5514_SPI_CMD_BURST_WRITE,
|
|
};
|
|
|
|
int rt5514_spi_burst_read(unsigned int addr, u8 *rxbuf, size_t len);
|
|
int rt5514_spi_burst_write(u32 addr, const u8 *txbuf, size_t len);
|
|
|
|
#endif /* __RT5514_SPI_H__ */
|