mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
7d4d443eb4
Added rt5677_spi_read() and refactored rt5677_spi_write() so that an arbitrary block in the DSP address space can be read/written via SPI. For example, this allows us to load an ELF DSP firmware with sparse sections, and stream audio samples from DSP ring buffer. Signed-off-by: Ben Zhang <benzh@chromium.org> Acked-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
20 lines
619 B
C
20 lines
619 B
C
/*
|
|
* rt5677-spi.h -- RT5677 ALSA SoC audio codec driver
|
|
*
|
|
* Copyright 2013 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 __RT5677_SPI_H__
|
|
#define __RT5677_SPI_H__
|
|
|
|
int rt5677_spi_read(u32 addr, void *rxbuf, size_t len);
|
|
int rt5677_spi_write(u32 addr, const void *txbuf, size_t len);
|
|
int rt5677_spi_write_firmware(u32 addr, const struct firmware *fw);
|
|
|
|
#endif /* __RT5677_SPI_H__ */
|