linux-imx

/*

 * Copyright (c) 2011 Jamie Iles

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * All enquiries to support@picochip.com

 */

#include <linux/acpi.h>

#include <linux/clk.h>

#include <linux/err.h>

#include <linux/gpio/driver.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <linux/ioport.h>

#include <linux/irq.h>

#include <linux/irqdomain.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_device.h>

#include <linux/of_irq.h>

#include <linux/platform_device.h>

#include <linux/property.h>

#include <linux/reset.h>

#include <linux/spinlock.h>

#include <linux/platform_data/gpio-dwapb.h>

#include <linux/slab.h>

​

#include "gpiolib.h"

​

#define GPIO_SWPORTA_DR     0x00

#define GPIO_SWPORTA_DDR    0x04

#define GPIO_SWPORTB_DR     0x0c

#define GPIO_SWPORTB_DDR    0x10

#define GPIO_SWPORTC_DR     0x18

#define GPIO_SWPORTC_DDR    0x1c

#define GPIO_SWPORTD_DR     0x24

#define GPIO_SWPORTD_DDR    0x28

#define GPIO_INTEN      0x30

#define GPIO_INTMASK        0x34

#define GPIO_INTTYPE_LEVEL  0x38

#define GPIO_INT_POLARITY   0x3c

#define GPIO_INTSTATUS      0x40

#define GPIO_PORTA_DEBOUNCE 0x48

#define GPIO_PORTA_EOI      0x4c

#define GPIO_EXT_PORTA      0x50

#define GPIO_EXT_PORTB      0x54

#define GPIO_EXT_PORTC      0x58

#define GPIO_EXT_PORTD      0x5c

​

#define DWAPB_MAX_PORTS     4

#define GPIO_EXT_PORT_STRIDE    0x04 /* register stride 32 bits */

#define GPIO_SWPORT_DR_STRIDE   0x0c /* register stride 3*32 bits */

#define GPIO_SWPORT_DDR_STRIDE  0x0c /* register stride 3*32 bits */

​

#define GPIO_REG_OFFSET_V2  1

​

#define GPIO_INTMASK_V2     0x44

#define GPIO_INTTYPE_LEVEL_V2   0x34

#define GPIO_INT_POLARITY_V2    0x38

#define GPIO_INTSTATUS_V2   0x3c

#define GPIO_PORTA_EOI_V2   0x40

​

struct dwapb_gpio;

​

#ifdef CONFIG_PM_SLEEP

/* Store GPIO context across system-wide suspend/resume transitions */

struct dwapb_context {

    u32 data;

    u32 dir;

    u32 ext;

    u32 int_en;

    u32 int_mask;

    u32 int_type;

    u32 int_pol;

    u32 int_deb;

    u32 wake_en;

};

#endif

​

struct dwapb_gpio_port {

    struct gpio_chip    gc;

    bool            is_registered;

    struct dwapb_gpio   *gpio;

#ifdef CONFIG_PM_SLEEP

    struct dwapb_context    *ctx;

#endif

    unsigned int        idx;

};