/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Anybus-S controller definitions
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*
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* Copyright 2018 Arcx Inc
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*/
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#ifndef __LINUX_ANYBUSS_CONTROLLER_H__
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#define __LINUX_ANYBUSS_CONTROLLER_H__
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#include <linux/device.h>
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#include <linux/regmap.h>
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/*
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* To instantiate an Anybus-S host, a controller should provide the following:
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* - a reset function which resets the attached card;
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* - a regmap which provides access to the attached card's dpram;
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* - the irq of the attached card
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*/
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/**
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* struct anybuss_ops - Controller resources to instantiate an Anybus-S host
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*
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* @reset: asserts/deasserts the anybus card's reset line.
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* @regmap: provides access to the card's dual-port RAM area.
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* @irq: number of the interrupt connected to the card's interrupt line.
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* @host_idx: for multi-host controllers, the host index:
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* 0 for the first host on the controller, 1 for the second, etc.
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*/
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struct anybuss_ops {
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void (*reset)(struct device *dev, bool assert);
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struct regmap *regmap;
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int irq;
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int host_idx;
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};
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struct anybuss_host;
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struct anybuss_host * __must_check
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anybuss_host_common_probe(struct device *dev,
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const struct anybuss_ops *ops);
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void anybuss_host_common_remove(struct anybuss_host *host);
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struct anybuss_host * __must_check
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devm_anybuss_host_common_probe(struct device *dev,
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const struct anybuss_ops *ops);
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#endif /* __LINUX_ANYBUSS_CONTROLLER_H__ */
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