kernel_samsung_a34x-permissive/drivers/misc/mediatek/srclken_rc/mtk-srclken-bridge.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019 MediaTek Inc.
* Author: owen.chen <owen.chen@mediatek.com>
*/
/*
* @file mtk-srclken-bridge.c
* @brief Bridge Driver for SRCLKEN RC Control
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <mtk-srclken-bridge.h>
/*******************************************************************************
* Bridging from platform -> srclken.ko
******************************************************************************/
static struct srclken_bridge bridge;
void srclken_export_platform_bridge_register(struct srclken_bridge *cb)
{
if (unlikely(!cb))
return;
bridge.get_stage_cb = cb->get_stage_cb;
bridge.dump_sta_cb = cb->dump_sta_cb;
bridge.dump_cfg_cb = cb->dump_cfg_cb;
bridge.dump_last_sta_cb = cb->dump_last_sta_cb;
}
EXPORT_SYMBOL(srclken_export_platform_bridge_register);
void srclken_export_platform_bridge_unregister(void)
{
memset(&bridge, 0, sizeof(struct srclken_bridge));
}
EXPORT_SYMBOL(srclken_export_platform_bridge_unregister);
enum srclken_config srclken_get_stage(void)
{
if (unlikely(!bridge.get_stage_cb)) {
pr_err("get stage not registered\n");
return SRCLKEN_NOT_SUPPORT;
}
return bridge.get_stage_cb();
}
EXPORT_SYMBOL(srclken_get_stage);
enum srclken_config srclken_dump_sta_log(void)
{
if (unlikely(!bridge.dump_sta_cb)) {
pr_err("dump sta log not registered\n");
return SRCLKEN_NOT_SUPPORT;
}
bridge.dump_last_sta_cb();
return SRCLKEN_OK;
}
EXPORT_SYMBOL(srclken_dump_sta_log);
enum srclken_config srclken_dump_cfg_log(void)
{
if (unlikely(!bridge.dump_cfg_cb)) {
pr_err("dump cfg log not registered\n");
return SRCLKEN_NOT_SUPPORT;
}
bridge.dump_cfg_cb();
return SRCLKEN_OK;
}
EXPORT_SYMBOL(srclken_dump_cfg_log);
enum srclken_config srclken_dump_last_sta_log(void)
{
if (unlikely(!bridge.dump_last_sta_cb)) {
pr_err("dump last sta log not registered\n");
return SRCLKEN_NOT_SUPPORT;
}
bridge.dump_last_sta_cb();
return SRCLKEN_OK;
}
EXPORT_SYMBOL(srclken_dump_last_sta_log);