diff options
| author | Arnaud Pouliquen <arnaud.pouliquen@st.com> | 2018-01-10 13:13:12 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-01-10 13:30:13 +0300 |
| commit | eca949800d2dd761bc0c73b793e4e9ad4a997469 (patch) | |
| tree | beffb0b4fbe0a619b77ea4ad2aa401d73e5dd829 /include/linux/iio | |
| parent | e2e6771c646251657fafb2a78db566d5c2c70635 (diff) | |
| download | linux-eca949800d2dd761bc0c73b793e4e9ad4a997469.tar.xz | |
IIO: ADC: add stm32 DFSDM support for PDM microphone
This code offers a way to handle PDM audio microphones in
ASOC framework. Audio driver should use consumer API.
A specific management is implemented for DMA, with a
callback, to allows to handle audio buffers efficiently.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/iio')
| -rw-r--r-- | include/linux/iio/adc/stm32-dfsdm-adc.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/iio/adc/stm32-dfsdm-adc.h b/include/linux/iio/adc/stm32-dfsdm-adc.h new file mode 100644 index 000000000000..e7dc7a542a4e --- /dev/null +++ b/include/linux/iio/adc/stm32-dfsdm-adc.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * This file discribe the STM32 DFSDM IIO driver API for audio part + * + * Copyright (C) 2017, STMicroelectronics - All Rights Reserved + * Author(s): Arnaud Pouliquen <arnaud.pouliquen@st.com>. + */ + +#ifndef STM32_DFSDM_ADC_H +#define STM32_DFSDM_ADC_H + +int stm32_dfsdm_get_buff_cb(struct iio_dev *iio_dev, + int (*cb)(const void *data, size_t size, + void *private), + void *private); +int stm32_dfsdm_release_buff_cb(struct iio_dev *iio_dev); + +#endif |