gpio.c~

cmmb if101 linux driver sample

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <linux/poll.h>
#include <linux/kdev_t.h>
#include <asm/semaphore.h>
#include <asm/arch/pxa-regs.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
//#include <asm/arch/gpio.h>
#include <asm/arch/ssp.h>
//#include <asm/arch/mfp.h>
#include <asm/arch/hardware.h>
#include <asm/dma.h>
#include <linux/dma-mapping.h>

#include "IF101_Operation.h"
#include "IF101_Communication.h"



/**************************************************************************
 *
 *		Declaration for GPIO_INT part	
 *
****************************************************************************/
#define INNODEV_IRQ				IRQ_GPIO(9)
#define INNODEV_INTR_PIN	9
#if 0
static struct mhn_pin_config inno_pins[] = {
	MHN_MFP_CFG("IF101 INT", INNODEV_INTR_PIN, MFP_AF0, MFP_DS03X, 0, MFP_LPM_PULL_HIGH, MFP_EDGE_NONE),
};
#endif

INNO_RETURN_CODE INNO_GPIO_INT_Init(int enable, void *handler)
{
#if 1
	if(enable == 1){
//		mhn_mfp_set_configs(inno_pins, ARRAY_SIZE(inno_pins));
//		mhn_gpio_set_direction(INNODEV_INTR_PIN, GPIO_DIR_IN);

		pxa_gpio_mode(INNODEV_INTR_PIN | GPIO_IN);
		if(request_irq(INNODEV_IRQ, handler, 0, "innodev", NULL))
		{
			printk("register %d interrupt handler failed.\r\n", INNODEV_IRQ);
			return -EIO;
		}

		set_irq_type(INNODEV_IRQ, IRQT_FALLING);

	}
	else{
		free_irq(INNODEV_IRQ, NULL);
	}
#endif	
	return INNO_NO_ERROR;

}