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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm/ti/ti_gpio.h
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/*-

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 * Copyright (c) 2011

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 *	Ben Gray <[email protected]>.

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef TI_GPIO_H

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#define	TI_GPIO_H

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/* The maximum number of banks for any SoC */

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#define	MAX_GPIO_BANKS			6

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/*

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 * Maximum GPIOS possible, max of *_MAX_GPIO_BANKS * *_INTR_PER_BANK.

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 * These are defined in ti_gpio.c

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 */

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#define	MAX_GPIO_INTRS			8

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struct ti_gpio_irqsrc {

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	struct intr_irqsrc	tgi_isrc;

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	u_int			tgi_irq;

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	uint32_t		tgi_mask;

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	uint32_t		tgi_mode;

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};

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/**

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 *	Structure that stores the driver context.

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 *

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 *	This structure is allocated during driver attach.

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 */

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struct ti_gpio_softc {

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	device_t		sc_dev;

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	device_t		sc_busdev;

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	int			sc_bank;

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	int			sc_maxpin;

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	struct mtx		sc_mtx;

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	int			sc_mem_rid;

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	struct resource		*sc_mem_res;

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	int			sc_irq_rid;

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	struct resource		*sc_irq_res;

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	struct ti_gpio_irqsrc	*sc_isrcs;

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	/* The handle for the register IRQ handlers. */

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	void			*sc_irq_hdl;

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};

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#endif /* TI_GPIO_H */

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