49c9a88333
This patch replaces the error counter with two separate error counters, one for late dma callbacks, and another for overruns (during recording) or underruns (during playback). The ioctls TEGRA_AUDIO_IN_GET_ERROR_COUNT and TEGRA_AUDIO_OUT_GET_ERROR_COUNT now take a pointer to a struct containing both error counters. Signed-off-by: Iliyan Malchev <malchev@google.com>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* include/linux/tegra_audio.h
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*
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* Copyright (C) 2010 Google, Inc.
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*
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* Author:
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* Iliyan Malchev <malchev@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef _TEGRA_AUDIO_H
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#define _TEGRA_AUDIO_H
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#include <linux/ioctl.h>
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#define TEGRA_AUDIO_MAGIC 't'
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#define TEGRA_AUDIO_IN_START _IO(TEGRA_AUDIO_MAGIC, 0)
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#define TEGRA_AUDIO_IN_STOP _IO(TEGRA_AUDIO_MAGIC, 1)
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struct tegra_audio_in_config {
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int rate;
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int stereo;
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};
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#define TEGRA_AUDIO_IN_SET_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 2, \
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const struct tegra_audio_in_config *)
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#define TEGRA_AUDIO_IN_GET_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 3, \
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struct tegra_audio_in_config *)
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struct tegra_audio_buf_config {
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unsigned size; /* order */
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unsigned threshold; /* order */
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unsigned chunk; /* order */
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};
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#define TEGRA_AUDIO_IN_SET_BUF_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 4, \
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const struct tegra_audio_buf_config *)
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#define TEGRA_AUDIO_IN_GET_BUF_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 5, \
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struct tegra_audio_buf_config *)
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#define TEGRA_AUDIO_OUT_SET_BUF_CONFIG _IOW(TEGRA_AUDIO_MAGIC, 6, \
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const struct tegra_audio_buf_config *)
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#define TEGRA_AUDIO_OUT_GET_BUF_CONFIG _IOR(TEGRA_AUDIO_MAGIC, 7, \
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struct tegra_audio_buf_config *)
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struct tegra_audio_error_counts {
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unsigned late_dma;
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unsigned full_empty; /* empty for playback, full for recording */
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};
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#define TEGRA_AUDIO_IN_GET_ERROR_COUNT _IOR(TEGRA_AUDIO_MAGIC, 8, \
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struct tegra_audio_error_counts *)
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#define TEGRA_AUDIO_OUT_GET_ERROR_COUNT _IOR(TEGRA_AUDIO_MAGIC, 9, \
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struct tegra_audio_error_counts *)
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struct tegra_audio_out_preload {
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void *data;
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size_t len;
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size_t len_written;
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};
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#define TEGRA_AUDIO_OUT_PRELOAD_FIFO _IOWR(TEGRA_AUDIO_MAGIC, 10, \
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struct tegra_audio_out_preload *)
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#endif/*_CPCAP_AUDIO_H*/
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