// 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/lib/uuid.h>

#include <sof/trace/trace.h>

#include <user/trace.h>

#include <rtos/bit.h>

#include <sof/common.h>

#include <ipc/channel_map.h>

#include <stdint.h>

#include <stdlib.h>

LOG_MODULE_REGISTER(channel_map, CONFIG_SOF_LOG_LEVEL);

/* ec290e95-4a20-47eb-bbff-d9c888431831 */

DECLARE_SOF_UUID("channel-map", chmap_uuid, 0xec290e95, 0x4a20, 0x47eb,

0xbb, 0xff, 0xd9, 0xc8, 0x88, 0x43, 0x18, 0x31);

DECLARE_TR_CTX(chmap_tr, SOF_UUID(chmap_uuid), LOG_LEVEL_INFO);

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) {

tr_err(&chmap_tr, "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;

}