62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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* Author: Kai Chieh Chuang <kaichieh.chuang@mediatek.com>
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*/
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#ifndef _MTK_SRAM_MANAGER_H_
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#define _MTK_SRAM_MANAGER_H_
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#include <sound/soc.h>
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enum mtk_audio_sram_mode {
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MTK_AUDIO_SRAM_NORMAL_MODE = 0,
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MTK_AUDIO_SRAM_COMPACT_MODE,
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MTK_AUDIO_SRAM_MODE_NUM,
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};
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struct mtk_audio_sram_block {
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bool valid;
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void *user;
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unsigned int size;
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dma_addr_t phys_addr;
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void *virt_addr;
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};
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struct mtk_audio_sram_ops {
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int (*set_sram_mode)(struct device *dev,
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enum mtk_audio_sram_mode sram_mode);
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};
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struct mtk_audio_sram {
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struct device *dev;
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spinlock_t lock;
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dma_addr_t phys_addr;
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void *virt_addr;
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unsigned int size;
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unsigned int block_size;
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unsigned int block_num;
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struct mtk_audio_sram_block *blocks;
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enum mtk_audio_sram_mode prefer_mode;
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enum mtk_audio_sram_mode sram_mode;
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unsigned int mode_size[MTK_AUDIO_SRAM_MODE_NUM];
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struct mtk_audio_sram_ops ops;
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};
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int mtk_audio_sram_init(struct device *dev,
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struct mtk_audio_sram *sram,
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const struct mtk_audio_sram_ops *ops);
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int mtk_audio_sram_allocate(struct mtk_audio_sram *sram,
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dma_addr_t *phys_addr, unsigned char **virt_addr,
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unsigned int size, void *user,
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snd_pcm_format_t format, bool force_normal);
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int mtk_audio_sram_free(struct mtk_audio_sram *sram, void *user);
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unsigned int mtk_audio_sram_get_size(struct mtk_audio_sram *sram, int mode);
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#endif
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