// SPDX-License-Identifier: BSD-3-Clause

//

// Copyright(c) 2019 Intel Corporation. All rights reserved.

//

// Author: Slawomir Blauciak <slawomir.blauciak@linux.intel.com>

#include <sof/audio/channel_map.h>

#include <sof/trace/trace.h>

#include <user/trace.h>

#include <sof/bit.h>

#include <sof/common.h>

#include <ipc/channel_map.h>

#include <stdint.h>

#include <stdlib.h>

struct sof_ipc_channel_map *chmap_get(struct sof_ipc_stream_map *smap,

int index)

{

struct sof_ipc_channel_map *chmap = NULL;

char *mem;

uint32_t byte = 0;

if (index >= smap->num_ch_map) {

trace_error(TRACE_CLASS_CHMAP, "chmap_get(): "

"index %d out of bounds %d",

index, smap->num_ch_map);

return NULL;

}

do {

mem = (char *)smap->ch_map + byte;

chmap = (struct sof_ipc_channel_map *)mem;

byte += chmap_get_size(chmap);

} while (index-- > 0);

return chmap;

}