diff options
| author | Oder Chiou <oder_chiou@realtek.com> | 2014-10-06 16:30:51 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-20 12:22:20 +0100 |
| commit | af48f1d08a5474184da9aaf8b77f4a2848b1875e (patch) | |
| tree | 59de8e574da74fe9ee49b8f426209a4ee5d91a6b /sound/soc/codecs/rt5677-spi.h | |
| parent | 40eb90a18e93fbd4fd0e6892b31241356c3c8e43 (diff) | |
| download | linux-af48f1d08a5474184da9aaf8b77f4a2848b1875e.tar.bz2 | |
ASoC: rt5677: Support DSP function for VAD application
The ALC5677 has a programmable DSP, and there is a SPI that is dadicated for DSP
firmware loading. Therefore, the patch includes a SPI driver for writing the DSP
firmware. The VAD(Voice Activaty Detection) has be implemented and use the DSP to
recognize the key phase.
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5677-spi.h')
| -rw-r--r-- | sound/soc/codecs/rt5677-spi.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5677-spi.h b/sound/soc/codecs/rt5677-spi.h new file mode 100644 index 000000000000..7528bfd0b596 --- /dev/null +++ b/sound/soc/codecs/rt5677-spi.h @@ -0,0 +1,21 @@ +/* + * 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 __RT5671_SPI_H__ +#define __RT5671_SPI_H__ + +#define RT5677_SPI_BUF_LEN 240 +#define RT5677_SPI_CMD_BURST_WRITE 0x05 + +int rt5677_spi_write(u8 *txbuf, size_t len); +int rt5677_spi_burst_write(u32 addr, const struct firmware *fw); + +#endif /* __RT5677_SPI_H__ */ |