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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-22 14:41:56 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-22 14:41:56 -0400
commit3c3301083e3bea4d14c597106c7b20b4b85fc03d (patch)
tree6eabdd073bdc27eb3f0dd999ea946955afca18bf /lib/string.c
parent612e900c286a9535cc17da5171b0d8dcf8f3a12f (diff)
parent0fdc7e67dd312986e30b861adff48732bd33eb3f (diff)
Merge branch 'perf-counters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf
* 'perf-counters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf: (31 commits) perf_counter tools: Give perf top inherit option perf_counter tools: Fix vmlinux symbol generation breakage perf_counter: Detect debugfs location perf_counter: Add tracepoint support to perf list, perf stat perf symbol: C++ demangling perf: avoid structure size confusion by using a fixed size perf_counter: Fix throttle/unthrottle event logging perf_counter: Improve perf stat and perf record option parsing perf_counter: PERF_SAMPLE_ID and inherited counters perf_counter: Plug more stack leaks perf: Fix stack data leak perf_counter: Remove unused variables perf_counter: Make call graph option consistent perf_counter: Add perf record option to log addresses perf_counter: Log vfork as a fork event perf_counter: Synthesize VDSO mmap event perf_counter: Make sure we dont leak kernel memory to userspace perf_counter tools: Fix index boundary check perf_counter: Fix the tracepoint channel to perfcounters perf_counter, x86: Extend perf_counter Pentium M support ...
Diffstat (limited to 'lib/string.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-20 10:55:42 -0400
pan> struct snd_compr_runtime { snd_pcm_state_t state; struct snd_compr_ops *ops; void *buffer; u64 buffer_size; u32 fragment_size; u32 fragments; u64 hw_pointer; u64 app_pointer; u64 total_bytes_available; u64 total_bytes_transferred; wait_queue_head_t sleep; }; /** * struct snd_compr_stream: compressed stream * @name: device name * @ops: pointer to DSP callbacks * @runtime: pointer to runtime structure * @device: device pointer * @direction: stream direction, playback/recording * @private_data: pointer to DSP private data */ struct snd_compr_stream { const char *name; struct snd_compr_ops *ops; struct snd_compr_runtime *runtime; struct snd_compr *device; enum snd_compr_direction direction; void *private_data; }; /** * struct snd_compr_ops: compressed path DSP operations * @open: Open the compressed stream * This callback is mandatory and shall keep dsp ready to receive the stream * parameter * @free: Close the compressed stream, mandatory * @set_params: Sets the compressed stream parameters, mandatory * This can be called in during stream creation only to set codec params * and the stream properties * @get_params: retrieve the codec parameters, mandatory * @trigger: Trigger operations like start, pause, resume, drain, stop. * This callback is mandatory * @pointer: Retrieve current h/w pointer information. Mandatory * @copy: Copy the compressed data to/from userspace, Optional * Can't be implemented if DSP supports mmap * @mmap: DSP mmap method to mmap DSP memory * @ack: Ack for DSP when data is written to audio buffer, Optional * Not valid if copy is implemented * @get_caps: Retrieve DSP capabilities, mandatory * @get_codec_caps: Retrieve capabilities for a specific codec, mandatory */ struct snd_compr_ops { int (*open)(struct snd_compr_stream *stream); int (*free)(struct snd_compr_stream *stream); int (*set_params)(struct snd_compr_stream *stream, struct snd_compr_params *params); int (*get_params)(struct snd_compr_stream *stream, struct snd_codec *params); int (*trigger)(struct snd_compr_stream *stream, int cmd); int (*pointer)(struct snd_compr_stream *stream, struct snd_compr_tstamp *tstamp); int (*copy)(struct snd_compr_stream *stream, const char __user *buf, size_t count); int (*mmap)(struct snd_compr_stream *stream, struct vm_area_struct *vma); int (*ack)(struct snd_compr_stream *stream, size_t bytes); int (*get_caps) (struct snd_compr_stream *stream, struct snd_compr_caps *caps); int (*get_codec_caps) (struct snd_compr_stream *stream, struct snd_compr_codec_caps *codec); }; /** * struct snd_compr: Compressed device * @name: DSP device name * @dev: Device pointer * @ops: pointer to DSP callbacks * @private_data: pointer to DSP pvt data * @card: sound card pointer * @direction: Playback or capture direction * @lock: device lock * @device: device id */ struct snd_compr { const char *name; struct device *dev; struct snd_compr_ops *ops; void *private_data; struct snd_card *card; unsigned int direction; struct mutex lock; int device; }; /* compress device register APIs */ int snd_compress_register(struct snd_compr *device); int snd_compress_deregister(struct snd_compr *device); int snd_compress_new(struct snd_card *card, int device, int type, struct snd_compr *compr); /* dsp driver callback apis * For playback: driver should call snd_compress_fragment_elapsed() to let the * framework know that a fragment has been consumed from the ring buffer * * For recording: we want to know when a frame is available or when * at least one frame is available so snd_compress_frame_elapsed() * callback should be called when a encodeded frame is available */ static inline void snd_compr_fragment_elapsed(struct snd_compr_stream *stream) { wake_up(&stream->runtime->sleep); } #endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-20 10:55:42 -0400