/*
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* drivers/mpp/sunxi-mpp.c
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*
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* Copyright (c) 2014 softwinner.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/cpu.h>
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#include <linux/of.h>
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#include <linux/debugfs.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <linux/mpp.h>
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enum {
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DEBUG_NONE = 0,
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DEBUG_MPP = 1,
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};
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static int debug_mask = DEBUG_NONE;
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module_param(debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
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#define MPP_DBG(mask, format, args...) \
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do { \
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if (mask & debug_mask) \
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pr_info("[mpp] "format, ##args); \
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} while (0)
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#define MPP_ERR(format, args...) \
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pr_err("[mpp] error:"format, ##args)
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#ifdef CONFIG_DEBUG_FS
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struct dentry *debugfs_mpp_root;
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EXPORT_SYMBOL(debugfs_mpp_root);
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static int __init mpp_debugfs_init(void)
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{
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MPP_DBG(DEBUG_MPP, "call %s.\n", __func__);
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WARN_ON(!debugfs_initialized());
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debugfs_mpp_root = debugfs_create_dir("mpp", 0);
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if (!debugfs_mpp_root)
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return -ENOMEM;
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return 0;
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}
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static void __exit mpp_debugfs_exit(void)
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{
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MPP_DBG(DEBUG_MPP, "call %s.\n", __func__);
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debugfs_remove_recursive(debugfs_mpp_root);
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}
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subsys_initcall(mpp_debugfs_init);
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module_exit(mpp_debugfs_exit);
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#endif /* CONFIG_DEBUG_FS */
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MODULE_DESCRIPTION("mpp driver for sunxi SOCs");
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MODULE_LICENSE("GPL");
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