diff options
| author | Chris Fries <C.Fries@motorola.com> | 2010-11-18 12:42:15 -0600 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:36:42 -0800 |
| commit | 5b5a9d8e8e69b1cdd89bda5ce2f588a0dd9f7cad (patch) | |
| tree | 90b80d64d9ae7d342dcbf8698528c62a960976c7 /include/linux | |
| parent | 853256c4ce95af578145c4bfe7f303c0ff6d82b0 (diff) | |
[ARM] tegra: i2s: Continuous DMA support
- Refactor DMA interactions to handle continuous single-buffered DMA
- Remove PIO support (obsolete, conflicts with new buffer management)
- Remove sample rate conversion (obsolete)
- Remove error-reporting logic
- Remove TEGRA_AUDIO_IN/OUT_GET/SET_BUF_CONFIG
- Add TEGRA_AUDIO_IN/OUT_GET/SET_NUM_BUFS
Change-Id: I8f21a0bb314aac3b7d1bb4918bda9141e58db38d
Signed-off-by: Iliyan Malchev <malchev@google.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/tegra_audio.h | 36 |
1 files changed, 9 insertions, 27 deletions
diff --git a/include/linux/tegra_audio.h b/include/linux/tegra_audio.h index 0ca6250beac4..db4661aacb4f 100644 --- a/include/linux/tegra_audio.h +++ b/include/linux/tegra_audio.h @@ -36,39 +36,21 @@ 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 *) +#define TEGRA_AUDIO_IN_SET_NUM_BUFS _IOW(TEGRA_AUDIO_MAGIC, 4, \ + const unsigned int *) +#define TEGRA_AUDIO_IN_GET_NUM_BUFS _IOW(TEGRA_AUDIO_MAGIC, 5, \ + unsigned int *) +#define TEGRA_AUDIO_OUT_SET_NUM_BUFS _IOW(TEGRA_AUDIO_MAGIC, 6, \ + const unsigned int *) +#define TEGRA_AUDIO_OUT_GET_NUM_BUFS _IOW(TEGRA_AUDIO_MAGIC, 7, \ + unsigned int *) #define TEGRA_AUDIO_OUT_FLUSH _IO(TEGRA_AUDIO_MAGIC, 10) #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 *) + const unsigned int *) #define TEGRA_AUDIO_GET_BIT_FORMAT _IOR(TEGRA_AUDIO_MAGIC, 12, \ unsigned int *) |