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/*-
* Copyright (c) 2011
* Ben Gray <ben.r.gray@gmail.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef TI_GPIO_H
#define TI_GPIO_H
/* The maximum number of banks for any SoC */
#define MAX_GPIO_BANKS 6
/*
* Maximum GPIOS possible, max of *_MAX_GPIO_BANKS * *_INTR_PER_BANK.
* These are defined in ti_gpio.c
*/
#define MAX_GPIO_INTRS 8
#ifndef INTRNG
struct ti_gpio_mask_arg {
void *softc;
int pin;
};
#else
struct ti_gpio_irqsrc {
struct intr_irqsrc tgi_isrc;
u_int tgi_irq;
uint32_t tgi_mask;
uint32_t tgi_cfgreg;
};
#endif
/**
* Structure that stores the driver context.
*
* This structure is allocated during driver attach.
*/
struct ti_gpio_softc {
device_t sc_dev;
device_t sc_busdev;
#ifndef INTRNG
/* Interrupt trigger type and level. */
enum intr_trigger *sc_irq_trigger;
enum intr_polarity *sc_irq_polarity;
#endif
int sc_bank;
int sc_maxpin;
struct mtx sc_mtx;
int sc_mem_rid;
struct resource *sc_mem_res;
int sc_irq_rid;
struct resource *sc_irq_res;
#ifndef INTRNG
/* Interrupt events. */
struct intr_event **sc_events;
struct ti_gpio_mask_arg *sc_mask_args;
#else
struct ti_gpio_irqsrc *sc_isrcs;
#endif
/* The handle for the register IRQ handlers. */
void *sc_irq_hdl;
};
#endif /* TI_GPIO_H */
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