92 lines
2.7 KiB
C
Executable file
92 lines
2.7 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* ALSA SoC - Samsung Abox Internal Buffer Dumping driver
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*
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* Copyright (c) 2016 Samsung Electronics Co. Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __SND_SOC_ABOX_DUMP_H
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#define __SND_SOC_ABOX_DUMP_H
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#include <linux/device.h>
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#include <linux/proc_fs.h>
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#include <sound/samsung/abox.h>
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/**
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* Report dump data written
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* @param[in] id unique buffer id
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* @param[in] pointer byte index of the written data
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*/
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extern void abox_dump_period_elapsed(int id, size_t pointer);
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/**
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* Transfer dump data
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* @param[in] id unique buffer id
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* @param[in] buf start of the trasferring buffer
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* @param[in] bytes number of bytes
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*/
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extern void abox_dump_transfer(int id, const char *buf, size_t bytes);
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/**
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* Register abox file only
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* @param[in] name unique buffer name
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* @param[in] data private data
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* @param[in] fops file operation callbacks
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* @return file entry pointer
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*/
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extern struct proc_dir_entry *abox_dump_register_file(const char *name,
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void *data, const struct proc_ops *fops);
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/**
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* Destroy registered dump file
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* @param[in] file pointer to file entry
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*/
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extern void abox_dump_unregister_file(struct proc_dir_entry *file);
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/**
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* Get given data of the dump file
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* @param[in] file pointer to file entry
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* @return data which is given at registration
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*/
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extern void *abox_dump_get_data(const struct file *file);
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/**
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* Register abox dump
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* @param[in] data abox data
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* @param[in] gid unique buffer gid
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* @param[in] id unique buffer id
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* @param[in] name unique buffer name
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* @param[in] area virtual address of the buffer
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* @param[in] addr pysical address of the buffer
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* @param[in] bytes buffer size in bytes
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* @return error code if any
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*/
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extern int abox_dump_register(struct abox_data *data, int gid, int id,
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const char *name, void *area, phys_addr_t addr, size_t bytes);
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/**
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* Register abox dump (legacy version)
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* @param[in] data abox data
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* @param[in] id unique buffer id
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* @param[in] name unique buffer name
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* @param[in] area virtual address of the buffer
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* @param[in] addr pysical address of the buffer
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* @param[in] bytes buffer size in bytes
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* @return error code if any
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*/
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static inline int abox_dump_register_legacy(struct abox_data *data, int id,
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const char *name, void *area, phys_addr_t addr, size_t bytes)
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{
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return abox_dump_register(data, 0, id, name, area, addr, bytes);
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}
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/**
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* Initialize abox dump module
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* @param[in] dev pointer to abox device
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*/
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extern void abox_dump_init(struct device *dev_abox);
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#endif /* __SND_SOC_ABOX_DUMP_H */
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