diff options
Diffstat (limited to 'hifi/xaf/hifi-dpf/plugins/cadence/mixer/xa-mixer.c')
| -rw-r--r-- | hifi/xaf/hifi-dpf/plugins/cadence/mixer/xa-mixer.c | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/hifi/xaf/hifi-dpf/plugins/cadence/mixer/xa-mixer.c b/hifi/xaf/hifi-dpf/plugins/cadence/mixer/xa-mixer.c new file mode 100644 index 00000000..2191239b --- /dev/null +++ b/hifi/xaf/hifi-dpf/plugins/cadence/mixer/xa-mixer.c @@ -0,0 +1,669 @@ +/******************************************************************************* +* 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. + +******************************************************************************/ + +/******************************************************************************* + * xa-mixer.c + * + * Sample mixer plugin + * + ******************************************************************************/ + +#define MODULE_TAG MIXER + +/******************************************************************************* + * Includes + ******************************************************************************/ + +#include "xf-plugin.h" +#include "audio/xa-mixer-api.h" + +/******************************************************************************* + * Tracing configuration + ******************************************************************************/ + +TRACE_TAG(INIT, 1); +TRACE_TAG(PROCESS, 1); + +/******************************************************************************* + * Internal functions definitions + ******************************************************************************/ + +/* ...API structure */ +typedef struct XAPcmMixer +{ + /* ...mixer state */ + u32 state; + + /* ...number of samples in a frame */ + u32 frame_size; + + /* ...number of channels (channel mask?) */ + u32 channels; + + /* ...PCM sample width */ + u32 pcm_width; + + /* ...sampling rate */ + u32 sample_rate; + + /* ...number of bytes in input/output buffer */ + u32 buffer_size; + + /* ...main volume and individual track volumes*/ + u32 volume[XA_MIXER_MAX_TRACK_NUMBER + 1]; + + /* ...input buffers */ + void *input[XA_MIXER_MAX_TRACK_NUMBER]; + + /* ...number of samples in individual buffers */ + u32 input_length[XA_MIXER_MAX_TRACK_NUMBER]; + + /* ...output buffer */ + void *output; + + /* ...number of produced bytes - do I need that? have buffer-size already - tbd */ + u32 produced; + + /* ...scratch buffer pointer */ + void *scratch; + +} XAPcmMixer; + +/******************************************************************************* + * Mixer state flags + ******************************************************************************/ + +#define XA_MIXER_FLAG_PREINIT_DONE (1 << 0) +#define XA_MIXER_FLAG_POSTINIT_DONE (1 << 1) +#define XA_MIXER_FLAG_RUNNING (1 << 2) +#define XA_MIXER_FLAG_OUTPUT (1 << 3) +#define XA_MIXER_FLAG_COMPLETE (1 << 4) + +/******************************************************************************* + * DSP functions + ******************************************************************************/ + +#define DSP_SATURATE_S16(s32) \ + (s16)((s32) > 0x7fff ? 0x7fff : ((s32) < -0x8000 ? -0x8000 : (s32))) + +/* ...mixer preinitialization (default parameters) */ +static inline void xa_mixer_preinit(XAPcmMixer *d) +{ + u32 i; + + /* ...pre-configuration initialization; reset internal data */ + memset(d, 0, sizeof(*d)); + + /* ...set default parameters */ + d->pcm_width = 16, d->channels = 2, d->frame_size = 512; + + /* ...set default volumes (last index is a main volume)*/ + for (i = 0; i <= XA_MIXER_MAX_TRACK_NUMBER; i++) + { + d->volume[i] = ((1 << 12) << 16) | (1 << 12); + } +} + +/* ...do mixing of stereo PCM-16 streams */ +static XA_ERRORCODE xa_mixer_do_execute_stereo_16bit(XAPcmMixer *d) +{ + s16 *output = d->output; + s16 *b[XA_MIXER_MAX_TRACK_NUMBER]; + u16 v_l[XA_MIXER_MAX_TRACK_NUMBER]; + u16 v_r[XA_MIXER_MAX_TRACK_NUMBER]; + u16 w_l, w_r; + u32 t32; + u32 i, j; + + /* ...retrieve main volume - assume up to 24dB amplifying (4 bits) */ + t32 = d->volume[XA_MIXER_MAX_TRACK_NUMBER]; + w_l = (u16)(t32 & 0xFFFF), w_r = (u16)(t32 >> 16); + + /* ...prepare individual tracks */ + for (j = 0; j < XA_MIXER_MAX_TRACK_NUMBER; j++) + { + u32 n = d->input_length[j]; + + /* ...check if we have input buffer available */ + if (n == 0) + { + /* ...output silence (multiply garbage in the scratch buffer by 0) */ + b[j] = d->scratch; + v_l[j] = v_r[j] = 0; + } + else + { + s32 k = (s32)(d->buffer_size - n); + + /* ...put input buffer */ + XF_CHK_ERR(b[j] = d->input[j], XA_MIXER_EXEC_FATAL_INPUT); + + /* ...if length is not sufficient, pad buffer remainder */ + (k > 0 ? memset((void *)b[j] + n, 0x00, k) : 0); + + /* ...set individual track volume/balance */ + t32 = d->volume[j]; + v_l[j] = (u16)(t32 & 0xFFFF), v_r[j] = (u16)(t32 >> 16); + } + + TRACE(PROCESS, _b("b[%u] = %p%s"), j, b[j], (n == 0 ? " - scratch" : "")); + } + + /* ...process all tracks */ + for (i = 0; i < d->frame_size; i++) + { + s32 l32 = 0, r32 = 0; + + /* ...fill-in every channel in our map (unrolls loop here) */ + for (j = 0; j < XA_MIXER_MAX_TRACK_NUMBER; j++) + { + /* ...left channel processing (no saturation here yet) */ + l32 += *b[j]++ * v_l[j]; + + /* ...right channel processing */ + r32 += *b[j]++ * v_r[j]; + } + + /* ...normalize (truncate towards -inf) and multiply by main volume */ + l32 = ((l32 >> 12) * w_l) >> 12; + r32 = ((r32 >> 12) * w_r) >> 12; + + /* ...saturate and store in buffer */ + *output++ = DSP_SATURATE_S16(l32); + *output++ = DSP_SATURATE_S16(r32); + } + + /* ...save total number of produced bytes */ + d->produced = (u32)((void *)output - d->output); + + /* ...put flag saying we have output buffer */ + d->state |= XA_MIXER_FLAG_OUTPUT; + + TRACE(PROCESS, _b("produced: %u bytes (%u samples)"), d->produced, d->frame_size); + + /* ...reset input buffer length? */ + //memset(d->input_length, 0, sizeof(d->input_length)); + + /* ...return success result code */ + return XA_NO_ERROR; +} + +/* ...runtime reset */ +static XA_ERRORCODE xa_mixer_do_runtime_init(XAPcmMixer *d) +{ + /* ...no special processing is needed here */ + return XA_NO_ERROR; +} + +/******************************************************************************* + * Commands processing + ******************************************************************************/ + +/* ...codec API size query */ +static XA_ERRORCODE xa_mixer_get_api_size(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...check parameters are valid */ + XF_CHK_ERR(pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...retrieve API structure size */ + *(WORD32 *)pv_value = sizeof(*d); + + return XA_NO_ERROR; +} + +/* ...standard codec initialization routine */ +static XA_ERRORCODE xa_mixer_init(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...validity check - mixer must be valid */ + XF_CHK_ERR(d, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...process particular initialization type */ + switch (i_idx) + { + case XA_CMD_TYPE_INIT_API_PRE_CONFIG_PARAMS: + { + /* ...pre-configuration initialization; reset internal data */ + xa_mixer_preinit(d); + + /* ...and mark mixer has been created */ + d->state = XA_MIXER_FLAG_PREINIT_DONE; + + return XA_NO_ERROR; + } + + case XA_CMD_TYPE_INIT_API_POST_CONFIG_PARAMS: + { + /* ...post-configuration initialization (all parameters are set) */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_PREINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...calculate input/output buffer size in bytes */ + d->buffer_size = d->channels * d->frame_size * (d->pcm_width == 16 ? sizeof(s16) : sizeof(s32)); + + /* ...mark post-initialization is complete */ + d->state |= XA_MIXER_FLAG_POSTINIT_DONE; + + return XA_NO_ERROR; + } + + case XA_CMD_TYPE_INIT_PROCESS: + { + /* ...kick run-time initialization process; make sure mixer is setup */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...enter into execution stage */ + d->state |= XA_MIXER_FLAG_RUNNING; + + return XA_NO_ERROR; + } + + case XA_CMD_TYPE_INIT_DONE_QUERY: + { + /* ...check if initialization is done; make sure pointer is valid */ + XF_CHK_ERR(pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...put current status */ + *(WORD32 *)pv_value = (d->state & XA_MIXER_FLAG_RUNNING ? 1 : 0); + + return XA_NO_ERROR; + } + + default: + /* ...unrecognized command type */ + TRACE(ERROR, _x("Unrecognized command type: %X"), i_idx); + return XA_API_FATAL_INVALID_CMD_TYPE; + } +} + +/* ...set mixer configuration parameter */ +static XA_ERRORCODE xa_mixer_set_config_param(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + u32 i_value; + + /* ...validity check - mixer pointer must be valid */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...pre-initialization must be completed, mixer must be idle */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_PREINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...get parameter value */ + i_value = (u32) *(WORD32 *)pv_value; + + /* ...process individual configuration parameter */ + switch (i_idx) + { + case XA_MIXER_CONFIG_PARAM_PCM_WIDTH: + /* ...check value is permitted (16 bits only) */ + XF_CHK_ERR(i_value == 16, XA_MIXER_CONFIG_NONFATAL_RANGE); + d->pcm_width = (u32)i_value; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_CHANNELS: + /* ...allow stereo only */ + XF_CHK_ERR(i_value == 2, XA_MIXER_CONFIG_NONFATAL_RANGE); + d->channels = (u32)i_value; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_SAMPLE_RATE: + /* ...set mixer sample rate */ + d->sample_rate = (u32)i_value; + return XA_NO_ERROR; + + default: + TRACE(ERROR, _x("Invalid parameter: %X"), i_idx); + return XA_API_FATAL_INVALID_CMD_TYPE; + } +} + +/* ...retrieve configuration parameter */ +static XA_ERRORCODE xa_mixer_get_config_param(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...validity check - mixer must be initialized */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...make sure pre-initialization is completed */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_PREINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...process individual configuration parameter */ + switch (i_idx) + { + case XA_MIXER_CONFIG_PARAM_INPUT_TRACKS: + /* ...return maximal number of input tracks supported */ + *(WORD32 *)pv_value = XA_MIXER_MAX_TRACK_NUMBER; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_SAMPLE_RATE: + /* ...return mixer sample rate */ + *(WORD32 *)pv_value = d->sample_rate; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_PCM_WIDTH: + /* ...return current PCM width */ + *(WORD32 *)pv_value = d->pcm_width; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_CHANNELS: + /* ...return current channel number */ + *(WORD32 *)pv_value = d->channels; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_FRAME_SIZE: + /* ...return current in/out frame length (in samples) */ + *(WORD32 *)pv_value = d->frame_size; + return XA_NO_ERROR; + + case XA_MIXER_CONFIG_PARAM_BUFFER_SIZE: + /* ...return current in/out frame length (in bytes) */ + *(WORD32 *)pv_value = d->buffer_size; + return XA_NO_ERROR; + + default: + TRACE(ERROR, _x("Invalid parameter: %X"), i_idx); + return XA_API_FATAL_INVALID_CMD_TYPE; + } +} + +/* ...execution command */ +static XA_ERRORCODE xa_mixer_execute(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...validity check - mixer must be valid */ + XF_CHK_ERR(d, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...mixer must be in running state */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_RUNNING, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...process individual command type */ + switch (i_idx) + { + case XA_CMD_TYPE_DO_EXECUTE: + /* ...perform mixing of the channels */ + return xa_mixer_do_execute_stereo_16bit(d); + + case XA_CMD_TYPE_DONE_QUERY: + /* ...check if processing is complete */ + XF_CHK_ERR(pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + *(WORD32 *)pv_value = (d->state & XA_MIXER_FLAG_COMPLETE ? 1 : 0); + return XA_NO_ERROR; + + case XA_CMD_TYPE_DO_RUNTIME_INIT: + /* ...reset mixer operation */ + return xa_mixer_do_runtime_init(d); + + default: + /* ...unrecognized command */ + TRACE(ERROR, _x("Invalid index: %X"), i_idx); + return XA_API_FATAL_INVALID_CMD_TYPE; + } +} + +/* ...set number of input bytes */ +static XA_ERRORCODE xa_mixer_set_input_bytes(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + u32 size; + + /* ...validity check - check parameters */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...track index must be valid */ + XF_CHK_ERR(i_idx >= 0 && i_idx < XA_MIXER_MAX_TRACK_NUMBER, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...mixer must be initialized */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...input buffer must exist */ + XF_CHK_ERR(d->input[i_idx], XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...input frame length should not be zero (in bytes) */ + XF_CHK_ERR((size = (u32)*(WORD32 *)pv_value) > 0, XA_MIXER_EXEC_NONFATAL_INPUT); + + /* ...all is correct; set input buffer length in bytes */ + d->input_length[i_idx] = size; + + return XA_NO_ERROR; +} + +/* ...get number of output bytes */ +static XA_ERRORCODE xa_mixer_get_output_bytes(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...validity check - check parameters */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...track index must be zero */ + XF_CHK_ERR(i_idx == XA_MIXER_MAX_TRACK_NUMBER, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...mixer must be running */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_RUNNING, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...output buffer must exist */ + XF_CHK_ERR(d->output, XA_MIXER_EXEC_NONFATAL_OUTPUT); + + /* ...return number of produced bytes */ + *(WORD32 *)pv_value = (d->state & XA_MIXER_FLAG_OUTPUT ? d->buffer_size : 0); + + return XA_NO_ERROR; +} + +/* ...get number of consumed bytes */ +static XA_ERRORCODE xa_mixer_get_curidx_input_buf(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...validity check - check parameters */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...track index must be valid */ + XF_CHK_ERR(i_idx >= 0 && i_idx < XA_MIXER_MAX_TRACK_NUMBER, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...mixer must be running */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_RUNNING, XA_MIXER_EXEC_FATAL_STATE); + + /* ...input buffer must exist */ + XF_CHK_ERR(d->input[i_idx], XA_MIXER_EXEC_FATAL_INPUT); + + /* ...return number of bytes consumed (always consume fixed-length chunk) */ + *(WORD32 *)pv_value = d->input_length[i_idx], d->input_length[i_idx] = 0; + + return XA_NO_ERROR; +} + +/******************************************************************************* + * Memory information API + ******************************************************************************/ + +/* ..get total amount of data for memory tables */ +static XA_ERRORCODE xa_mixer_get_memtabs_size(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity checks */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...check mixer is pre-initialized */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_PREINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...we have all our tables inside API structure - good? tbd */ + *(WORD32 *)pv_value = 0; + + return XA_NO_ERROR; +} + +/* ..set memory tables pointer */ +static XA_ERRORCODE xa_mixer_set_memtabs_ptr(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity checks */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...check mixer is pre-initialized */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_PREINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...do not do anything; just return success - tbd */ + return XA_NO_ERROR; +} + +/* ...return total amount of memory buffers */ +static XA_ERRORCODE xa_mixer_get_n_memtabs(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity checks */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...we have N input buffers, 1 output buffer and 1 scratch buffer */ + *(WORD32 *)pv_value = XA_MIXER_MAX_TRACK_NUMBER + 1 + 1; + + return XA_NO_ERROR; +} + +/* ...return memory buffer data */ +static XA_ERRORCODE xa_mixer_get_mem_info_size(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity check */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...return frame buffer minimal size only after post-initialization is done */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...all buffers are of the same length */ + *(WORD32 *)pv_value = (WORD32) d->buffer_size; + + return XA_NO_ERROR; +} + +/* ...return memory alignment data */ +static XA_ERRORCODE xa_mixer_get_mem_info_alignment(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity check */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...return frame buffer minimal size only after post-initialization is done */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...all buffers are 4-bytes aligned */ + *(WORD32 *)pv_value = 4; + + return XA_NO_ERROR; +} + +/* ...return memory type data */ +static XA_ERRORCODE xa_mixer_get_mem_info_type(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity check */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...return frame buffer minimal size only after post-initialization is done */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + switch (i_idx) + { + case 0 ... XA_MIXER_MAX_TRACK_NUMBER - 1: + /* ...input buffers */ + *(WORD32 *)pv_value = XA_MEMTYPE_INPUT; + return XA_NO_ERROR; + + case XA_MIXER_MAX_TRACK_NUMBER: + /* ...output buffer */ + *(WORD32 *)pv_value = XA_MEMTYPE_OUTPUT; + return XA_NO_ERROR; + + case XA_MIXER_MAX_TRACK_NUMBER + 1: + /* ...scratch buffer */ + *(WORD32 *)pv_value = XA_MEMTYPE_SCRATCH; + return XA_NO_ERROR; + + default: + /* ...invalid index */ + return XF_CHK_ERR(0, XA_API_FATAL_INVALID_CMD_TYPE); + } +} + +/* ...set memory pointer */ +static XA_ERRORCODE xa_mixer_set_mem_ptr(XAPcmMixer *d, WORD32 i_idx, pVOID pv_value) +{ + /* ...basic validity check */ + XF_CHK_ERR(d && pv_value, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...codec must be initialized */ + XF_CHK_ERR(d->state & XA_MIXER_FLAG_POSTINIT_DONE, XA_API_FATAL_INVALID_CMD_TYPE); + + /* ...select memory buffer */ + switch (i_idx) + { + case 0 ... XA_MIXER_MAX_TRACK_NUMBER - 1: + /* ...input buffers */ + d->input[i_idx] = pv_value; + return XA_NO_ERROR; + + case XA_MIXER_MAX_TRACK_NUMBER: + /* ...output buffer */ + d->output = pv_value; + return XA_NO_ERROR; + + case XA_MIXER_MAX_TRACK_NUMBER + 1: + /* ...scratch buffer */ + d->scratch = pv_value; + return XA_NO_ERROR; + + default: + /* ...invalid index */ + return XF_CHK_ERR(0, XA_API_FATAL_INVALID_CMD_TYPE); + } +} + +/******************************************************************************* + * API command hooks + ******************************************************************************/ + +static XA_ERRORCODE (* const xa_mixer_api[])(XAPcmMixer *, WORD32, pVOID) = +{ + [XA_API_CMD_GET_API_SIZE] = xa_mixer_get_api_size, + + [XA_API_CMD_INIT] = xa_mixer_init, + [XA_API_CMD_SET_CONFIG_PARAM] = xa_mixer_set_config_param, + [XA_API_CMD_GET_CONFIG_PARAM] = xa_mixer_get_config_param, + + [XA_API_CMD_EXECUTE] = xa_mixer_execute, + [XA_API_CMD_SET_INPUT_BYTES] = xa_mixer_set_input_bytes, + [XA_API_CMD_GET_OUTPUT_BYTES] = xa_mixer_get_output_bytes, + [XA_API_CMD_GET_CURIDX_INPUT_BUF] = xa_mixer_get_curidx_input_buf, + + [XA_API_CMD_GET_MEMTABS_SIZE] = xa_mixer_get_memtabs_size, + [XA_API_CMD_SET_MEMTABS_PTR] = xa_mixer_set_memtabs_ptr, + [XA_API_CMD_GET_N_MEMTABS] = xa_mixer_get_n_memtabs, + [XA_API_CMD_GET_MEM_INFO_SIZE] = xa_mixer_get_mem_info_size, + [XA_API_CMD_GET_MEM_INFO_ALIGNMENT] = xa_mixer_get_mem_info_alignment, + [XA_API_CMD_GET_MEM_INFO_TYPE] = xa_mixer_get_mem_info_type, + [XA_API_CMD_SET_MEM_PTR] = xa_mixer_set_mem_ptr, +}; + +/* ...total numer of commands supported */ +#define XA_MIXER_API_COMMANDS_NUM (sizeof(xa_mixer_api) / sizeof(xa_mixer_api[0])) + +/******************************************************************************* + * API entry point + ******************************************************************************/ + +XA_ERRORCODE xa_mixer(xa_codec_handle_t p_xa_module_obj, WORD32 i_cmd, WORD32 i_idx, pVOID pv_value) +{ + XAPcmMixer *d = (XAPcmMixer *) p_xa_module_obj; + + /* ...check if command index is valid */ + XF_CHK_ERR(i_cmd < XA_MIXER_API_COMMANDS_NUM, XA_API_FATAL_INVALID_CMD); + + /* ...see if command is defined */ + XF_CHK_ERR(xa_mixer_api[i_cmd], XA_API_FATAL_INVALID_CMD); + + /* ...execute requested command */ + return xa_mixer_api[i_cmd](d, i_idx, pv_value); +} |