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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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1966e2fe97
WSA chip has an interrupt controller which can fire interrupts such as OCP, clip detect and temperature sensor interrupts. Driver is to support these interrupts from wsa controller. Change-Id: I431cbc6cd42858cf31dd2f68e987c87b13a041dc Signed-off-by: Yeleswarapu Nagaradhesh <nagaradh@codeaurora.org>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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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 version 2 and
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* only version 2 as 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 __WSA881X_IRQ_H__
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#define __WSA881X_IRQ_H__
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#include <linux/irqdomain.h>
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#include <linux/interrupt.h>
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#include <sound/soc.h>
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/**
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* enum wsa_interrupts - wsa interrupt number
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* @WSA_INT_SAF2WAR: Temp irq interrupt, from safe state to warning state.
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* @WSA_INT_WAR2SAF: Temp irq interrupt, from warning state to safe state.
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* @WSA_INT_DISABLE: Disable Temp sensor interrupts.
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* @WSA_INT_OCP: OCP interrupt.
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* @WSA_INT_CLIP: CLIP detect interrupt.
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* @WSA_NUM_IRQS: MAX Interrupt number.
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*
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* WSA IRQ Interrupt numbers.
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*/
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enum wsa_interrupts {
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WSA_INT_SAF2WAR = 0,
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WSA_INT_WAR2SAF,
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WSA_INT_DISABLE,
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WSA_INT_OCP,
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WSA_INT_CLIP,
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WSA_NUM_IRQS,
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};
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/**
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* struct wsa_resource - the basic wsa_resource structure
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* @irq_lock: lock used by irq_chip functions.
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* @nested_irq_lock: lock used while handling nested interrupts.
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* @irq: interrupt number.
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* @irq_masks_cur: current mask value to be written to mask registers.
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* @irq_masks_cache: cached mask value.
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* @num_irqs: number of supported interrupts.
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* @num_irq_regs: number of irq registers.
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* @parent: parent pointer.
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* @dev: device pointer.
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* @domain: irq domain pointer.
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* codec: codec pointer.
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*
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* Contains required members used in wsa irq driver.
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*/
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struct wsa_resource {
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struct mutex irq_lock;
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struct mutex nested_irq_lock;
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unsigned int irq;
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u8 irq_masks_cur;
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u8 irq_masks_cache;
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bool irq_level_high[8];
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int num_irqs;
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int num_irq_regs;
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void *parent;
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struct device *dev;
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struct irq_domain *domain;
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struct snd_soc_codec *codec;
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};
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void wsa_set_codec(struct snd_soc_codec *codec);
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void wsa_free_irq(int irq, void *data);
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void wsa_enable_irq(struct wsa_resource *wsa_res, int irq);
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void wsa_disable_irq(struct wsa_resource *wsa_res, int irq);
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void wsa_disable_irq_sync(struct wsa_resource *wsa_res, int irq);
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int wsa_request_irq(struct wsa_resource *wsa_res,
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int irq, irq_handler_t handler,
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const char *name, void *data);
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void wsa_irq_exit(struct wsa_resource *wsa_res);
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#endif /* __WSA881X_IRQ_H__ */
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