linux-imx

/*

 * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.

 *

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

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

 */

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/pci.h>

#include <linux/gpio/driver.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

​

#define IOH_EDGE_FALLING    0

#define IOH_EDGE_RISING     BIT(0)

#define IOH_LEVEL_L     BIT(1)

#define IOH_LEVEL_H     (BIT(0) | BIT(1))

#define IOH_EDGE_BOTH       BIT(2)

#define IOH_IM_MASK     (BIT(0) | BIT(1) | BIT(2))

​

#define IOH_IRQ_BASE        0

​

struct ioh_reg_comn {

    u32 ien;

    u32 istatus;

    u32 idisp;

    u32 iclr;

    u32 imask;

    u32 imaskclr;

    u32 po;

    u32 pi;

    u32 pm;

    u32 im_0;

    u32 im_1;

    u32 reserved;

};

​

struct ioh_regs {

    struct ioh_reg_comn regs[8];

    u32 reserve1[16];

    u32 ioh_sel_reg[4];

    u32 reserve2[11];

    u32 srst;

};

​

/**

 * struct ioh_gpio_reg_data - The register store data.

 * @ien_reg To store contents of interrupt enable register.

 * @imask_reg:  To store contents of interrupt mask regist

 * @po_reg: To store contents of PO register.

 * @pm_reg: To store contents of PM register.

 * @im0_reg:    To store contents of interrupt mode regist0