67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
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// Copyright (c) 2018, Linaro Limited
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#include "q6dsp-common.h"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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int q6dsp_map_channels(u8 ch_map[PCM_MAX_NUM_CHANNEL], int ch)
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{
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memset(ch_map, 0, PCM_MAX_NUM_CHANNEL);
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switch (ch) {
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case 1:
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ch_map[0] = PCM_CHANNEL_FC;
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break;
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case 2:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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break;
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case 3:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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ch_map[2] = PCM_CHANNEL_FC;
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break;
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case 4:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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ch_map[2] = PCM_CHANNEL_LS;
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ch_map[3] = PCM_CHANNEL_RS;
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break;
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case 5:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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ch_map[2] = PCM_CHANNEL_FC;
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ch_map[3] = PCM_CHANNEL_LS;
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ch_map[4] = PCM_CHANNEL_RS;
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break;
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case 6:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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ch_map[2] = PCM_CHANNEL_LFE;
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ch_map[3] = PCM_CHANNEL_FC;
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ch_map[4] = PCM_CHANNEL_LS;
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ch_map[5] = PCM_CHANNEL_RS;
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break;
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case 8:
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ch_map[0] = PCM_CHANNEL_FL;
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ch_map[1] = PCM_CHANNEL_FR;
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ch_map[2] = PCM_CHANNEL_LFE;
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ch_map[3] = PCM_CHANNEL_FC;
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ch_map[4] = PCM_CHANNEL_LS;
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ch_map[5] = PCM_CHANNEL_RS;
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ch_map[6] = PCM_CHANNEL_LB;
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ch_map[7] = PCM_CHANNEL_RB;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(q6dsp_map_channels);
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MODULE_LICENSE("GPL v2");
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