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ce3ae8e74b
-- Ignore kfifo thresholds on recording and playback and adjust the delays. -- Take out the code from TEGRA_AUDIO_IN_STOP into a separate function stop_recording_nosync() -- Rename stop_recording() to wait_for_recording_to_stop(). -- add ioctl(TEGRA_AUDIO_OUT_FLUSH), which blocks the caller until the output fifo is drained. While the caller is blocked, pending write() calls will return immediately with whatever data they had managed to queue up. -- removed ioctl(TEGRA_AUDIO_OUT_PRELOAD_FIFO) -- since TEGRA_AUDIO_OUT_FLUSH and TEGRA_AUDIO_IN_STOP act similarly, moved audio_driver_state::recording_cancelled to audio_stream::stop and changed the code accordingly. Renamed functions wait_for_recording_to_stop() and stop_recording_nosync() to wait_till_stopped() and request_stop_nosync() since they handle both playback and recording. -- print errors on close() if wakelocks are still held -- Call request_stop_nosync() on close() of a recording file handle -- Do not use struct audio_stream::active for playback streams. Instead, where applicable, use kfifo_len(). As a consequence, playback kfifo underruns are no longer reported. These were bogus anyway, as we really need the DMA engine to tell us if there are underruns. -- Because of above item, had to rework tx_fifo_atn_store(), rx_fifo_atn_store(), and __attr_fifo_atn_write(). -- Set struct audio_stream::active for a recording stream to true when a recording starts, and set it to false when recording get stopped. Do not set/clear it within the body of read(), because just being within read() does not mean that recording is in progress. -- In tegra_audio_read(), check for stop == true before calling start_recording_if_necessary(); this makes sure that if a user calls read() after calling ioctl(TEGRA_AUDIO_IN_STOP), recording will not resume unless ioctl(TEGRA_AUDIO_IN_START) gets called, or the file is closed and re-opened. -- Fixed TEGRA_AUDIO_IN_START -- In PIO mode, enabled FIFOs before enabling interrupts as specified in the TRM. -- Added missing break in tegra_audio_ioctl(). -- Silenced some debug spew Signed-off-by: Iliyan Malchev <malchev@google.com> |
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| acpi | ||
| asm-generic | ||
| crypto | ||
| drm | ||
| keys | ||
| linux | ||
| math-emu | ||
| media | ||
| mtd | ||
| net | ||
| pcmcia | ||
| rdma | ||
| rxrpc | ||
| scsi | ||
| sound | ||
| trace | ||
| video | ||
| xen | ||
| Kbuild | ||