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/* include/linux/tegra_audio.h
*
* Copyright (C) 2010 Google, Inc.
*
* Author:
* Iliyan Malchev <malchev@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _TEGRA_AUDIO_H
#define _TEGRA_AUDIO_H
#include <linux/ioctl.h>
#define TEGRA_AUDIO_MAGIC 't'
#define TEGRA_AUDIO_IN_START _IO(TEGRA_AUDIO_MAGIC, 0)
#define TEGRA_AUDIO_IN_STOP _IO(TEGRA_AUDIO_MAGIC, 1)
struct tegra_audio_in_config {
int rate;
int stereo;
};
#define TEGRA_AUDIO_IN_SET_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 2, \
const struct tegra_audio_in_config *)
#define TEGRA_AUDIO_IN_GET_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 3, \
struct tegra_audio_in_config *)
struct tegra_audio_buf_config {
unsigned size; /* order */
unsigned threshold; /* order */
unsigned chunk; /* order */
};
#define TEGRA_AUDIO_IN_SET_BUF_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 4, \
const struct tegra_audio_buf_config *)
#define TEGRA_AUDIO_IN_GET_BUF_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 5, \
struct tegra_audio_buf_config *)
#define TEGRA_AUDIO_OUT_SET_BUF_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 6, \
const struct tegra_audio_buf_config *)
#define TEGRA_AUDIO_OUT_GET_BUF_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 7, \
struct tegra_audio_buf_config *)
struct tegra_audio_error_counts {
unsigned late_dma;
unsigned full_empty; /* empty for playback, full for recording */
};
#define TEGRA_AUDIO_IN_GET_ERROR_COUNT _IOR(TEGRA_AUDIO_MAGIC, 8, \
struct tegra_audio_error_counts *)
#define TEGRA_AUDIO_OUT_GET_ERROR_COUNT _IOR(TEGRA_AUDIO_MAGIC, 9, \
struct tegra_audio_error_counts *)
struct tegra_audio_out_preload {
void *data;
size_t len;
size_t len_written;
};
#define TEGRA_AUDIO_OUT_PRELOAD_FIFO _IOWR(TEGRA_AUDIO_MAGIC, 10, \
struct tegra_audio_out_preload *)
#define TEGRA_AUDIO_BIT_FORMAT_DEFAULT 0
#define TEGRA_AUDIO_BIT_FORMAT_DSP 1
#define TEGRA_AUDIO_SET_BIT_FORMAT _IOW(TEGRA_AUDIO_MAGIC, 11, \
unsigned int *)
#define TEGRA_AUDIO_GET_BIT_FORMAT _IOR(TEGRA_AUDIO_MAGIC, 12, \
unsigned int *)
#endif/*_CPCAP_AUDIO_H*/
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