65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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/*
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* Copyright (C) 2016
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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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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* 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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#ifndef _SUNXI_NMI_H
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#define _SUNXI_NMI_H
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#define NMI_MODULE_NAME "nmi"
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#define NMI_IRQ_LOW_LEVEL (0x0)
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#define NMI_IRQ_NE_EDGE (0x1)
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#define NMI_IRQ_HIGH_LEVEL (0x2)
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#define NMI_IRQ_PO_EDGE (0x3)
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struct nmi_struct {
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void __iomem *base_addr;
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u32 nmi_irq_ctrl;
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u32 nmi_irq_en;
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u32 nmi_irq_status;
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};
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struct nmi_struct *nmi_data;
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static inline void __clear_nmi_status(void)
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{
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if (nmi_data->base_addr)
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writel(0x1, nmi_data->base_addr + nmi_data->nmi_irq_status);
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else
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pr_err("%s: para invalid\n", __func__);
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}
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static inline void __enable_nmi_irq(void)
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{
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if (nmi_data->base_addr)
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writel(0x1, nmi_data->base_addr + nmi_data->nmi_irq_en);
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else
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pr_err("%s: para invalid\n", __func__);
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}
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static inline void __disable_nmi_irq(void)
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{
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if (nmi_data->base_addr)
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writel(0x0, nmi_data->base_addr + nmi_data->nmi_irq_en);
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else
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pr_err("%s: para invalid\n", __func__);
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}
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static inline void __set_nmi_trigger(unsigned int value)
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{
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if (nmi_data->base_addr)
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writel(value, nmi_data->base_addr + nmi_data->nmi_irq_ctrl);
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else
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pr_err("%s: para invalid\n", __func__);
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}
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#endif /* _SUNXI_NMI_H */
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