#include?
#include?
#include?
#include?

#include?
#include?
#include?
#include?

#include?
#include?
#include?
#include?“hi_gpio.h“

#define??GPIO_1_base_ADDR??0x20160000
#define??GPIO_6_base_ADDR??0x201b0000
#define??GPIO_10_base_ADDR?0x201f0000

#define??GPIO_DIR_base???（groupbase+0x400）
#define??GPIO_INTR_MASK??（groupbase+0x410）
#define??GPIO_DATA_base???data_reg_base


#define?WRITE_REG（Addr?Value）?（（*（volatile?unsigned?int?*）（Addr））?=?（Value））
#define?READ_REG（Addr）?????????（*（volatile?unsigned?int?*）（Addr））

//static?DECLARE_MUTEX（gpio_sem）;

static?unsigned?int?groupbase=-1;
static?unsigned?int?data_reg_base=0;
static?unsigned?int?gpio1_base_addr_virtual=0;
static?unsigned?int?gpio6_base_addr_virtual=0;
static?unsigned?int?gpio7_base_addr_virtual=0;
static?unsigned?int?gpio10_base_addr_virtual=0;

static?void?gpio_calculate_data_groupbase（unsigned?int?groupnum?unsigned?int?bitnum）
{
????switch（groupnum）
????{
	case?1:?
	?????groupbase?=gpio1_base_addr_virtual;
	?????break;
	case?6:?
	?????groupbase?=gpio6_base_addr_virtual;
	?????break;
	case?7:?
	?????groupbase?=gpio7_base_addr_virtual;
	?????break;
	case?10:?
	?????groupbase?=gpio10_base_addr_virtual;
	?????break;
	default:
	?????break;
????}

????//printk（“groupbase:%x?!\n“groupbase）;
????data_reg_base=groupbase+（1<<（bitnum+2））;
????printk（“data_reg_base:%#x?!\n“data_reg_base）;
}



static?int?gpio_open（struct?inode?*inode?struct?file?*filp）
{
???return?0;		
}

static?int?gpio_release（struct?inode?*inode?struct?file?*filp）
{
	return?0;	
}


static?int?gpio_ioctl（struct?file?*file?unsigned?int?cmd?unsigned?long?arg）
{
	unsigned?char?__user?*argp?=?（unsigned?char?__user?*）arg;
????gpio_groupbit_info?group_bit_info;
????unsigned?int?reg_tmp=0;

????copy_from_user（&group_bit_infoargp?sizeof（gpio_groupbit_info））;
	printk（“[driver]-debug:gpio_ioctlcmd=%#x\n“cmd）;
	printk（“[driver]-debug:gpio%d_%d=%d\n“group_bit_info.groupnumbergroup_bit_info.bitnumbergroup_bit_info.value）;
	
???if（（（group_bit_info.groupnumber?!=?1）?&&?（group_bit_info.groupnumber?!=?6）
	??&&（group_bit_info.groupnumber?!=?10）&&（group_bit_info.groupnumber?!=?7））?||（group_bit_info.bitnumber>7））
????{
		printk（“[driver]:group?number:%d?or?bitnum:%d?beyond?extent!\n“group_bit_info.groupnumbergroup_bit_info.bitnumber）;
		return?-1;
????}
	
????gpio_calculate_data_groupbase（group_bit_info.groupnumbergroup_bit_info.bitnumber）;
	
????switch（cmd）
????{
????????case?GPIO_SET_DIR:
		{
		????reg_tmp=READ_REG（GPIO_DIR_base）;

		????if（group_bit_info.value==0）
		????{
				reg_tmp?&=~（1<				WRITE_REG（GPIO_DIR_basereg_tmp）;
		????}
		????else?if（group_bit_info.value==1）
		????{
				reg_tmp?|=（1<				WRITE_REG（GPIO_DIR_basereg_tmp）;
		????}
		????else
		????{
				printk（“dir?beyond?of?extent!\n“）;
				/

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-04-02?14:03??gpio\
?????文件????????6824??2015-04-02?14:02??gpio\hi_gpio.c
?????文件?????????321??2015-04-02?14:02??gpio\hi_gpio.h
?????文件?????????345??2015-04-02?14:02??gpio\Makefile
?????文件????????7826??2015-04-02?14:02??gpio\test_gpio
?????文件????????1831??2015-04-02?14:02??gpio\test_gpio.c