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ASoC: qdsp6: q6common: Add qdsp6 helper functions

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This patch adds some common helper functions like translating dsp error
to linux error codes and channel mappings etc.

These functions are used in all the following qdsp6 drivers.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-and-tested-by: Rohit kumar <rohitkr@codeaurora.org>
Reviewed-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla
2018-05-09 13:56:18 +01:00
committed by Mark Brown
parent 0e17e98203
commit 4dddbddbce
6 changed files with 158 additions and 0 deletions
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66
sound/soc/qcom/qdsp6/q6dsp-common.c Normal file
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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
// Copyright (c) 2018, Linaro Limited
#include "q6dsp-common.h"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/errno.h>
int q6dsp_map_channels(u8 ch_map[PCM_MAX_NUM_CHANNEL], int ch)
{
memset(ch_map, 0, PCM_MAX_NUM_CHANNEL);
switch (ch) {
case 1:
ch_map[0] = PCM_CHANNEL_FC;
break;
case 2:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
break;
case 3:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
ch_map[2] = PCM_CHANNEL_FC;
break;
case 4:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
ch_map[2] = PCM_CHANNEL_LS;
ch_map[3] = PCM_CHANNEL_RS;
break;
case 5:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
ch_map[2] = PCM_CHANNEL_FC;
ch_map[3] = PCM_CHANNEL_LS;
ch_map[4] = PCM_CHANNEL_RS;
break;
case 6:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
ch_map[2] = PCM_CHANNEL_LFE;
ch_map[3] = PCM_CHANNEL_FC;
ch_map[4] = PCM_CHANNEL_LS;
ch_map[5] = PCM_CHANNEL_RS;
break;
case 8:
ch_map[0] = PCM_CHANNEL_FL;
ch_map[1] = PCM_CHANNEL_FR;
ch_map[2] = PCM_CHANNEL_LFE;
ch_map[3] = PCM_CHANNEL_FC;
ch_map[4] = PCM_CHANNEL_LS;
ch_map[5] = PCM_CHANNEL_RS;
ch_map[6] = PCM_CHANNEL_LB;
ch_map[7] = PCM_CHANNEL_RB;
break;
default:
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL_GPL(q6dsp_map_channels);
MODULE_LICENSE("GPL v2");