81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
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*/
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#ifndef __DPU_CORE_IRQ_H__
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#define __DPU_CORE_IRQ_H__
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#include "dpu_kms.h"
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#include "dpu_hw_interrupts.h"
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/**
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* dpu_core_irq_preinstall - perform pre-installation of core IRQ handler
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* @kms: MSM KMS handle
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* @return: none
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*/
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void dpu_core_irq_preinstall(struct msm_kms *kms);
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/**
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* dpu_core_irq_uninstall - uninstall core IRQ handler
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* @kms: MSM KMS handle
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* @return: none
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*/
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void dpu_core_irq_uninstall(struct msm_kms *kms);
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/**
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* dpu_core_irq - core IRQ handler
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* @kms: MSM KMS handle
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* @return: interrupt handling status
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*/
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irqreturn_t dpu_core_irq(struct msm_kms *kms);
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/**
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* dpu_core_irq_read - IRQ helper function for reading IRQ status
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* @dpu_kms: DPU handle
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* @irq_idx: irq index
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* @return: non-zero if irq detected; otherwise no irq detected
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*/
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u32 dpu_core_irq_read(
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struct dpu_kms *dpu_kms,
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int irq_idx);
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/**
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* dpu_core_irq_register_callback - For registering callback function on IRQ
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* interrupt
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* @dpu_kms: DPU handle
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* @irq_idx: irq index
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* @irq_cb: IRQ callback funcion.
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* @irq_arg: IRQ callback argument.
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* @return: 0 for success registering callback, otherwise failure
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*
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* This function supports registration of multiple callbacks for each interrupt.
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*/
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int dpu_core_irq_register_callback(
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struct dpu_kms *dpu_kms,
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int irq_idx,
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void (*irq_cb)(void *arg, int irq_idx),
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void *irq_arg);
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/**
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* dpu_core_irq_unregister_callback - For unregistering callback function on IRQ
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* interrupt
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* @dpu_kms: DPU handle
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* @irq_idx: irq index
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* @return: 0 for success registering callback, otherwise failure
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*
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* This function supports registration of multiple callbacks for each interrupt.
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*/
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int dpu_core_irq_unregister_callback(
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struct dpu_kms *dpu_kms,
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int irq_idx);
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/**
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* dpu_debugfs_core_irq_init - register core irq debugfs
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* @dpu_kms: pointer to kms
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* @parent: debugfs directory root
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*/
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void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
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struct dentry *parent);
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#endif /* __DPU_CORE_IRQ_H__ */
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