/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. * Copyright (C) 2018-2024 Linaro Ltd.
*/ #ifndef _IPA_INTERRUPT_H_ #define _IPA_INTERRUPT_H_
#include <linux/types.h>
struct platform_device;
struct ipa; struct ipa_interrupt;
enum ipa_irq_id;
/** * ipa_interrupt_suspend_enable - Enable TX_SUSPEND for an endpoint * @interrupt: IPA interrupt structure * @endpoint_id: Endpoint whose interrupt should be enabled * * Note: The "TX" in the name is from the perspective of the IPA hardware. * A TX_SUSPEND interrupt arrives on an AP RX enpoint when packet data can't * be delivered to the endpoint because it is suspended (or its underlying * channel is stopped).
*/ void ipa_interrupt_suspend_enable(struct ipa_interrupt *interrupt,
u32 endpoint_id);
/** * ipa_interrupt_suspend_disable - Disable TX_SUSPEND for an endpoint * @interrupt: IPA interrupt structure * @endpoint_id: Endpoint whose interrupt should be disabled
*/ void ipa_interrupt_suspend_disable(struct ipa_interrupt *interrupt,
u32 endpoint_id);
/** * ipa_interrupt_simulate_suspend() - Simulate TX_SUSPEND IPA interrupt * @interrupt: IPA interrupt structure * * This calls the TX_SUSPEND interrupt handler, as if such an interrupt * had been signaled. This is needed to work around a hardware quirk * that occurs if aggregation is active on an endpoint when its underlying * channel is suspended.
*/ void ipa_interrupt_simulate_suspend(struct ipa_interrupt *interrupt);
/** * ipa_interrupt_enable() - Enable an IPA interrupt type * @ipa: IPA pointer * @ipa_irq: IPA interrupt ID
*/ void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq);
/** * ipa_interrupt_disable() - Disable an IPA interrupt type * @ipa: IPA pointer * @ipa_irq: IPA interrupt ID
*/ void ipa_interrupt_disable(struct ipa *ipa, enum ipa_irq_id ipa_irq);
/** * ipa_interrupt_irq_enable() - Enable IPA interrupts * @ipa: IPA pointer * * This enables the IPA interrupt line
*/ void ipa_interrupt_irq_enable(struct ipa *ipa);
/** * ipa_interrupt_irq_disable() - Disable IPA interrupts * @ipa: IPA pointer * * This disables the IPA interrupt line
*/ void ipa_interrupt_irq_disable(struct ipa *ipa);
/** * ipa_interrupt_config() - Configure IPA interrupts * @ipa: IPA pointer * * Return: 0 if successful, or a negative error code
*/ int ipa_interrupt_config(struct ipa *ipa);
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