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| author | Ben Zhang | 2015-08-22 06:17:00 +0200 |
|---|---|---|
| committer | Mark Brown | 2015-08-25 18:34:30 +0200 |
| commit | 7d4d443eb4386d6dbd420fa96303dd8fbc1eefc8 (patch) | |
| tree | 9eb7d85d1dea45e38e3b4f0a5382ea49fce5003a /sound/soc/codecs/rt5677-spi.h | |
| parent | ASoC: rt5677: Return error if devm_gpiod_get_optional return ERR_PTR (diff) | |
| download | kernel-qcow2-linux-7d4d443eb4386d6dbd420fa96303dd8fbc1eefc8.tar.gz kernel-qcow2-linux-7d4d443eb4386d6dbd420fa96303dd8fbc1eefc8.tar.xz kernel-qcow2-linux-7d4d443eb4386d6dbd420fa96303dd8fbc1eefc8.zip | |
ASoC: rt5677: Allow arbitrary block read/write via SPI
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>
Diffstat (limited to 'sound/soc/codecs/rt5677-spi.h')
| -rw-r--r-- | sound/soc/codecs/rt5677-spi.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sound/soc/codecs/rt5677-spi.h b/sound/soc/codecs/rt5677-spi.h index ec41b2b3b2ca..662db16cfb6a 100644 --- a/sound/soc/codecs/rt5677-spi.h +++ b/sound/soc/codecs/rt5677-spi.h @@ -12,10 +12,8 @@ #ifndef __RT5677_SPI_H__ #define __RT5677_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); +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__ */ |