diff options
Diffstat (limited to 'hifi/xaf/host-apf/playback/tinyalsa/asoundlib.h')
| -rw-r--r-- | hifi/xaf/host-apf/playback/tinyalsa/asoundlib.h | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/hifi/xaf/host-apf/playback/tinyalsa/asoundlib.h b/hifi/xaf/host-apf/playback/tinyalsa/asoundlib.h deleted file mode 100644 index 753a996b..00000000 --- a/hifi/xaf/host-apf/playback/tinyalsa/asoundlib.h +++ /dev/null @@ -1,314 +0,0 @@ -/******************************************************************************* -* Copyright (C) 2018 Cadence Design Systems, Inc. -* -* Permission is hereby granted, free of charge, to any person obtaining -* a copy of this software and associated documentation files (the -* "Software"), to use this Software with Cadence processor cores only and -* not with any other processors and platforms, subject to -* the following conditions: -* -* The above copyright notice and this permission notice shall be included -* in all copies or substantial portions of the Software. -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -******************************************************************************/ - -#ifndef ASOUNDLIB_H -#define ASOUNDLIB_H - -#include <sys/time.h> -#include <stddef.h> - -#if defined(__cplusplus) -extern "C" { -#endif - -/* - * PCM API - */ - -struct pcm; - -#define PCM_OUT 0x00000000 -#define PCM_IN 0x10000000 -#define PCM_MMAP 0x00000001 -#define PCM_NOIRQ 0x00000002 -#define PCM_NORESTART 0x00000004 /* PCM_NORESTART - when set, calls to - * pcm_write for a playback stream will not - * attempt to restart the stream in the case - * of an underflow, but will return -EPIPE - * instead. After the first -EPIPE error, the - * stream is considered to be stopped, and a - * second call to pcm_write will attempt to - * restart the stream. - */ -#define PCM_MONOTONIC 0x00000008 /* see pcm_get_htimestamp */ - -/* PCM runtime states */ -#define PCM_STATE_OPEN 0 -#define PCM_STATE_SETUP 1 -#define PCM_STATE_PREPARED 2 -#define PCM_STATE_RUNNING 3 -#define PCM_STATE_XRUN 4 -#define PCM_STATE_DRAINING 5 -#define PCM_STATE_PAUSED 6 -#define PCM_STATE_SUSPENDED 7 -#define PCM_STATE_DISCONNECTED 8 - -/* TLV header size*/ -#define TLV_HEADER_SIZE (2 * sizeof(unsigned int)) - -/* Bit formats */ -enum pcm_format { - PCM_FORMAT_INVALID = -1, - PCM_FORMAT_S16_LE = 0, /* 16-bit signed */ - PCM_FORMAT_S32_LE, /* 32-bit signed */ - PCM_FORMAT_S8, /* 8-bit signed */ - PCM_FORMAT_S24_LE, /* 24-bits in 4-bytes */ - PCM_FORMAT_S24_3LE, /* 24-bits in 3-bytes */ - - PCM_FORMAT_MAX, -}; - -/* Bitmask has 256 bits (32 bytes) in asound.h */ -struct pcm_mask { - unsigned int bits[32 / sizeof(unsigned int)]; -}; - -/* Configuration for a stream */ -struct pcm_config { - unsigned int channels; - unsigned int rate; - unsigned int period_size; - unsigned int period_count; - enum pcm_format format; - - /* Values to use for the ALSA start, stop and silence thresholds, and - * silence size. Setting any one of these values to 0 will cause the - * default tinyalsa values to be used instead. - * Tinyalsa defaults are as follows. - * - * start_threshold : period_count * period_size - * stop_threshold : period_count * period_size - * silence_threshold : 0 - * silence_size : 0 - */ - unsigned int start_threshold; - unsigned int stop_threshold; - unsigned int silence_threshold; - unsigned int silence_size; - - /* Minimum number of frames available before pcm_mmap_write() will actually - * write into the kernel buffer. Only used if the stream is opened in mmap mode - * (pcm_open() called with PCM_MMAP flag set). Use 0 for default. - */ - int avail_min; -}; - -/* PCM parameters */ -enum pcm_param -{ - /* mask parameters */ - PCM_PARAM_ACCESS, - PCM_PARAM_FORMAT, - PCM_PARAM_SUBFORMAT, - /* interval parameters */ - PCM_PARAM_SAMPLE_BITS, - PCM_PARAM_FRAME_BITS, - PCM_PARAM_CHANNELS, - PCM_PARAM_RATE, - PCM_PARAM_PERIOD_TIME, - PCM_PARAM_PERIOD_SIZE, - PCM_PARAM_PERIOD_BYTES, - PCM_PARAM_PERIODS, - PCM_PARAM_BUFFER_TIME, - PCM_PARAM_BUFFER_SIZE, - PCM_PARAM_BUFFER_BYTES, - PCM_PARAM_TICK_TIME, -}; - -/* Mixer control types */ -enum mixer_ctl_type { - MIXER_CTL_TYPE_BOOL, - MIXER_CTL_TYPE_INT, - MIXER_CTL_TYPE_ENUM, - MIXER_CTL_TYPE_BYTE, - MIXER_CTL_TYPE_IEC958, - MIXER_CTL_TYPE_INT64, - MIXER_CTL_TYPE_UNKNOWN, - - MIXER_CTL_TYPE_MAX, -}; - -/* Open and close a stream */ -struct pcm *pcm_open(unsigned int card, unsigned int device, - unsigned int flags, struct pcm_config *config); -int pcm_close(struct pcm *pcm); -int pcm_is_ready(struct pcm *pcm); - -/* Obtain the parameters for a PCM */ -struct pcm_params *pcm_params_get(unsigned int card, unsigned int device, - unsigned int flags); -void pcm_params_free(struct pcm_params *pcm_params); - -struct pcm_mask *pcm_params_get_mask(struct pcm_params *pcm_params, - enum pcm_param param); -unsigned int pcm_params_get_min(struct pcm_params *pcm_params, - enum pcm_param param); -void pcm_params_set_min(struct pcm_params *pcm_params, - enum pcm_param param, unsigned int val); -unsigned int pcm_params_get_max(struct pcm_params *pcm_params, - enum pcm_param param); -void pcm_params_set_max(struct pcm_params *pcm_params, - enum pcm_param param, unsigned int val); - -/* Converts the pcm parameters to a human readable string. - * The string parameter is a caller allocated buffer of size bytes, - * which is then filled up to size - 1 and null terminated, - * if size is greater than zero. - * The return value is the number of bytes copied to string - * (not including null termination) if less than size; otherwise, - * the number of bytes required for the buffer. - */ -int pcm_params_to_string(struct pcm_params *params, char *string, unsigned int size); - -/* Returns 1 if the pcm_format is present (format bit set) in - * the pcm_params structure; 0 otherwise, or upon unrecognized format. - */ -int pcm_params_format_test(struct pcm_params *params, enum pcm_format format); - -/* Set and get config */ -int pcm_get_config(struct pcm *pcm, struct pcm_config *config); -int pcm_set_config(struct pcm *pcm, struct pcm_config *config); - -/* Returns a human readable reason for the last error */ -const char *pcm_get_error(struct pcm *pcm); - -/* Returns the sample size in bits for a PCM format. - * As with ALSA formats, this is the storage size for the format, whereas the - * format represents the number of significant bits. For example, - * PCM_FORMAT_S24_LE uses 32 bits of storage. - */ -unsigned int pcm_format_to_bits(enum pcm_format format); - -/* Returns the buffer size (int frames) that should be used for pcm_write. */ -unsigned int pcm_get_buffer_size(struct pcm *pcm); -unsigned int pcm_frames_to_bytes(struct pcm *pcm, unsigned int frames); -unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes); - -/* Returns the pcm latency in ms */ -unsigned int pcm_get_latency(struct pcm *pcm); - -/* Returns available frames in pcm buffer and corresponding time stamp. - * The clock is CLOCK_MONOTONIC if flag PCM_MONOTONIC was specified in pcm_open, - * otherwise the clock is CLOCK_REALTIME. - * For an input stream, frames available are frames ready for the - * application to read. - * For an output stream, frames available are the number of empty frames available - * for the application to write. - */ -int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail, - struct timespec *tstamp); - -/* Returns the subdevice on which the pcm has been opened */ -unsigned int pcm_get_subdevice(struct pcm *pcm); - -/* Write data to the fifo. - * Will start playback on the first write or on a write that - * occurs after a fifo underrun. - */ -int pcm_write(struct pcm *pcm, const void *data, unsigned int count); -int pcm_read(struct pcm *pcm, void *data, unsigned int count); - -/* - * mmap() support. - */ -int pcm_mmap_write(struct pcm *pcm, const void *data, unsigned int count); -int pcm_mmap_read(struct pcm *pcm, void *data, unsigned int count); -int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset, - unsigned int *frames); -int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames); -int pcm_mmap_avail(struct pcm *pcm); - -/* Prepare the PCM substream to be triggerable */ -int pcm_prepare(struct pcm *pcm); -/* Start and stop a PCM channel that doesn't transfer data */ -int pcm_start(struct pcm *pcm); -int pcm_stop(struct pcm *pcm); - -/* ioctl function for PCM driver */ -int pcm_ioctl(struct pcm *pcm, int request, ...); - -/* Interrupt driven API */ -int pcm_wait(struct pcm *pcm, int timeout); -int pcm_get_poll_fd(struct pcm *pcm); - -/* Change avail_min after the stream has been opened with no need to stop the stream. - * Only accepted if opened with PCM_MMAP and PCM_NOIRQ flags - */ -int pcm_set_avail_min(struct pcm *pcm, int avail_min); - -/* - * MIXER API - */ - -struct mixer; -struct mixer_ctl; - -/* Open and close a mixer */ -struct mixer *mixer_open(unsigned int card); -void mixer_close(struct mixer *mixer); - -/* Get info about a mixer */ -const char *mixer_get_name(struct mixer *mixer); - -/* Obtain mixer controls */ -unsigned int mixer_get_num_ctls(struct mixer *mixer); -struct mixer_ctl *mixer_get_ctl(struct mixer *mixer, unsigned int id); -struct mixer_ctl *mixer_get_ctl_by_name(struct mixer *mixer, const char *name); - -/* Get info about mixer controls */ -const char *mixer_ctl_get_name(struct mixer_ctl *ctl); -enum mixer_ctl_type mixer_ctl_get_type(struct mixer_ctl *ctl); -const char *mixer_ctl_get_type_string(struct mixer_ctl *ctl); -unsigned int mixer_ctl_get_num_values(struct mixer_ctl *ctl); -unsigned int mixer_ctl_get_num_enums(struct mixer_ctl *ctl); -const char *mixer_ctl_get_enum_string(struct mixer_ctl *ctl, - unsigned int enum_id); - -/* Some sound cards update their controls due to external events, - * such as HDMI EDID byte data changing when an HDMI cable is - * connected. This API allows the count of elements to be updated. - */ -void mixer_ctl_update(struct mixer_ctl *ctl); - -/* Set and get mixer controls */ -int mixer_ctl_get_percent(struct mixer_ctl *ctl, unsigned int id); -int mixer_ctl_set_percent(struct mixer_ctl *ctl, unsigned int id, int percent); - -int mixer_ctl_get_value(struct mixer_ctl *ctl, unsigned int id); -int mixer_ctl_is_access_tlv_rw(struct mixer_ctl *ctl); -int mixer_ctl_get_array(struct mixer_ctl *ctl, void *array, size_t count); -int mixer_ctl_set_value(struct mixer_ctl *ctl, unsigned int id, int value); -int mixer_ctl_set_array(struct mixer_ctl *ctl, const void *array, size_t count); -int mixer_ctl_set_enum_by_string(struct mixer_ctl *ctl, const char *string); - -/* Determe range of integer mixer controls */ -int mixer_ctl_get_range_min(struct mixer_ctl *ctl); -int mixer_ctl_get_range_max(struct mixer_ctl *ctl); - -int mixer_subscribe_events(struct mixer *mixer, int subscribe); -int mixer_wait_event(struct mixer *mixer, int timeout); - -#if defined(__cplusplus) -} /* extern "C" */ -#endif - -#endif |