diff options
| author | Ravindra Lokhande <rlokhande@nvidia.com> | 2010-09-27 12:53:41 -0500 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 00:47:20 -0700 |
| commit | d99be55032233384d1322986b018a45158e31a81 (patch) | |
| tree | 45ed97072a30f2f774d276694ec427bcafab4e06 /include | |
| parent | 714bcb3f4efe95f6abb1baf36597f64f9f247bf1 (diff) | |
[ARM] tegra: driver for spdif audio
Creates /dev/spdif_out and /dev/spdif_out_ctl for playback and control
settings. Playback is working.
Signed-off-by: Iliyan Malchev <malchev@google.com>
Rebase-Id: R5a5895a8b6292aea5a5f14780840599a415b894d
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tegra_spdif.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/linux/tegra_spdif.h b/include/linux/tegra_spdif.h new file mode 100644 index 000000000000..8d7f6457a0d1 --- /dev/null +++ b/include/linux/tegra_spdif.h @@ -0,0 +1,56 @@ +/* include/linux/tegra_spdif.h + * + * SPDIF audio driver for NVIDIA Tegra SoCs + * + * Copyright (c) 2008-2009, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _TEGRA_SPDIF_H +#define _TEGRA_SPDIF_H + +#include <linux/ioctl.h> + +#define TEGRA_SPDIF_MAGIC 's' + + + +struct tegra_audio_buf_config { + unsigned size; /* order */ + unsigned threshold; /* order */ + unsigned chunk; /* order */ +}; + + + +#define TEGRA_AUDIO_OUT_SET_BUF_CONFIG _IOW(TEGRA_SPDIF_MAGIC, 0, \ + const struct tegra_audio_buf_config *) +#define TEGRA_AUDIO_OUT_GET_BUF_CONFIG _IOR(TEGRA_SPDIF_MAGIC, 1, \ + struct tegra_audio_buf_config *) + +#define TEGRA_AUDIO_OUT_GET_ERROR_COUNT _IOR(TEGRA_SPDIF_MAGIC, 2, \ + unsigned *) + +struct tegra_audio_out_preload { + void *data; + size_t len; + size_t len_written; +}; + +#define TEGRA_AUDIO_OUT_PRELOAD_FIFO _IOWR(TEGRA_SPDIF_MAGIC, 3, \ + struct tegra_audio_out_preload *) + +#endif/*_TEGRA_SPDIF_H*/ |