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/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __WSA881X_IRQ_H__
#define __WSA881X_IRQ_H__
#include <linux/irqdomain.h>
#include <linux/interrupt.h>
#include <sound/soc.h>
/**
* enum wsa_interrupts - wsa interrupt number
* @WSA_INT_SAF2WAR: Temp irq interrupt, from safe state to warning state.
* @WSA_INT_WAR2SAF: Temp irq interrupt, from warning state to safe state.
* @WSA_INT_DISABLE: Disable Temp sensor interrupts.
* @WSA_INT_OCP: OCP interrupt.
* @WSA_INT_CLIP: CLIP detect interrupt.
* @WSA_NUM_IRQS: MAX Interrupt number.
*
* WSA IRQ Interrupt numbers.
*/
enum wsa_interrupts {
WSA_INT_SAF2WAR = 0,
WSA_INT_WAR2SAF,
WSA_INT_DISABLE,
WSA_INT_OCP,
WSA_INT_CLIP,
WSA_NUM_IRQS,
};
/**
* struct wsa_resource - the basic wsa_resource structure
* @irq_lock: lock used by irq_chip functions.
* @nested_irq_lock: lock used while handling nested interrupts.
* @irq: interrupt number.
* @irq_masks_cur: current mask value to be written to mask registers.
* @irq_masks_cache: cached mask value.
* @num_irqs: number of supported interrupts.
* @num_irq_regs: number of irq registers.
* @parent: parent pointer.
* @dev: device pointer.
* @domain: irq domain pointer.
* codec: codec pointer.
*
* Contains required members used in wsa irq driver.
*/
struct wsa_resource {
struct mutex irq_lock;
struct mutex nested_irq_lock;
unsigned int irq;
u8 irq_masks_cur;
u8 irq_masks_cache;
bool irq_level_high[8];
int num_irqs;
int num_irq_regs;
void *parent;
struct device *dev;
struct irq_domain *domain;
struct snd_soc_codec *codec;
};
void wsa_set_codec(struct snd_soc_codec *codec);
void wsa_free_irq(int irq, void *data);
void wsa_enable_irq(struct wsa_resource *wsa_res, int irq);
void wsa_disable_irq(struct wsa_resource *wsa_res, int irq);
void wsa_disable_irq_sync(struct wsa_resource *wsa_res, int irq);
int wsa_request_irq(struct wsa_resource *wsa_res,
int irq, irq_handler_t handler,
const char *name, void *data);
void wsa_irq_exit(struct wsa_resource *wsa_res);
#endif /* __WSA881X_IRQ_H__ */
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