sound/soc/mediatek/mt8186/mt8186-afe-control.c
Source file repositories/reference/linux-study-clean/sound/soc/mediatek/mt8186/mt8186-afe-control.c
File Facts
- System
- Linux kernel
- Corpus path
sound/soc/mediatek/mt8186/mt8186-afe-control.c- Extension
.c- Size
- 5620 bytes
- Lines
- 255
- Domain
- Driver Families
- Bucket
- sound/soc
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
mt8186-afe-common.h
Detected Declarations
function mt8186_general_rate_transformfunction tdm_rate_transformfunction pcm_rate_transformfunction mt8186_tdm_relatch_rate_transformfunction mt8186_rate_transformfunction mt8186_dai_set_priv
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
//
// MediaTek ALSA SoC Audio Control
//
// Copyright (c) 2022 MediaTek Inc.
// Author: Jiaxin Yu <jiaxin.yu@mediatek.com>
#include "mt8186-afe-common.h"
enum {
MTK_AFE_RATE_8K = 0,
MTK_AFE_RATE_11K,
MTK_AFE_RATE_12K,
MTK_AFE_RATE_384K,
MTK_AFE_RATE_16K,
MTK_AFE_RATE_22K,
MTK_AFE_RATE_24K,
MTK_AFE_RATE_352K,
MTK_AFE_RATE_32K,
MTK_AFE_RATE_44K,
MTK_AFE_RATE_48K,
MTK_AFE_RATE_88K,
MTK_AFE_RATE_96K,
MTK_AFE_RATE_176K,
MTK_AFE_RATE_192K,
MTK_AFE_RATE_260K,
};
enum {
MTK_AFE_PCM_RATE_8K = 0,
MTK_AFE_PCM_RATE_16K,
MTK_AFE_PCM_RATE_32K,
MTK_AFE_PCM_RATE_48K,
};
enum {
MTK_AFE_TDM_RATE_8K = 0,
MTK_AFE_TDM_RATE_12K,
MTK_AFE_TDM_RATE_16K,
MTK_AFE_TDM_RATE_24K,
MTK_AFE_TDM_RATE_32K,
MTK_AFE_TDM_RATE_48K,
MTK_AFE_TDM_RATE_64K,
MTK_AFE_TDM_RATE_96K,
MTK_AFE_TDM_RATE_128K,
MTK_AFE_TDM_RATE_192K,
MTK_AFE_TDM_RATE_256K,
MTK_AFE_TDM_RATE_384K,
MTK_AFE_TDM_RATE_11K,
MTK_AFE_TDM_RATE_22K,
MTK_AFE_TDM_RATE_44K,
MTK_AFE_TDM_RATE_88K,
MTK_AFE_TDM_RATE_176K,
MTK_AFE_TDM_RATE_352K,
};
enum {
MTK_AFE_TDM_RELATCH_RATE_8K = 0,
MTK_AFE_TDM_RELATCH_RATE_11K,
MTK_AFE_TDM_RELATCH_RATE_12K,
MTK_AFE_TDM_RELATCH_RATE_16K,
MTK_AFE_TDM_RELATCH_RATE_22K,
MTK_AFE_TDM_RELATCH_RATE_24K,
MTK_AFE_TDM_RELATCH_RATE_32K,
MTK_AFE_TDM_RELATCH_RATE_44K,
MTK_AFE_TDM_RELATCH_RATE_48K,
MTK_AFE_TDM_RELATCH_RATE_88K,
MTK_AFE_TDM_RELATCH_RATE_96K,
MTK_AFE_TDM_RELATCH_RATE_176K,
MTK_AFE_TDM_RELATCH_RATE_192K,
MTK_AFE_TDM_RELATCH_RATE_352K,
MTK_AFE_TDM_RELATCH_RATE_384K,
};
unsigned int mt8186_general_rate_transform(struct device *dev, unsigned int rate)
{
switch (rate) {
case 8000:
return MTK_AFE_RATE_8K;
case 11025:
return MTK_AFE_RATE_11K;
case 12000:
return MTK_AFE_RATE_12K;
case 16000:
return MTK_AFE_RATE_16K;
case 22050:
return MTK_AFE_RATE_22K;
case 24000:
return MTK_AFE_RATE_24K;
case 32000:
Annotation
- Immediate include surface: `mt8186-afe-common.h`.
- Detected declarations: `function mt8186_general_rate_transform`, `function tdm_rate_transform`, `function pcm_rate_transform`, `function mt8186_tdm_relatch_rate_transform`, `function mt8186_rate_transform`, `function mt8186_dai_set_priv`.
- Atlas domain: Driver Families / sound/soc.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.