mtk-lk/platform/mt6755/mt_gpio.c

/******************************************************************************
 * mt_gpio.c - MTK GPIO Device Driver
 *
 * Copyright 2008-2009 MediaTek Co.,Ltd.
 *
 * DESCRIPTION:
 *     This file provid the other drivers GPIO relative functions
 *
 ******************************************************************************/

#include <platform/mt_reg_base.h>
#include <platform/mt_gpio.h>
#include <platform/gpio_cfg.h>
#include <debug.h>
/******************************************************************************
 MACRO Definition
******************************************************************************/
//#define  GIO_SLFTEST
#define GPIO_BRINGUP
#define GPIO_DEVICE "mt-gpio"
#define VERSION     GPIO_DEVICE
/*---------------------------------------------------------------------------*/
#define GPIO_WR32(addr, data)   DRV_WriteReg32(addr,data)
#define GPIO_RD32(addr)         DRV_Reg32(addr)
#define GPIO_SW_SET_BITS(BIT,REG)   GPIO_WR32(REG,GPIO_RD32(REG) | ((unsigned long)(BIT)))
#define GPIO_SET_BITS(BIT,REG)   ((*(volatile u32*)(REG)) = (u32)(BIT))
#define GPIO_CLR_BITS(BIT,REG)   ((*(volatile u32*)(REG)) &= ~((u32)(BIT)))

/*---------------------------------------------------------------------------*/
#define TRUE                   1
#define FALSE                  0
/*---------------------------------------------------------------------------*/
//#define MAX_GPIO_REG_BITS      16
//#define MAX_GPIO_MODE_PER_REG  5
//#define GPIO_MODE_BITS         3
/*---------------------------------------------------------------------------*/
#define GPIOTAG                "[GPIO] "
#define GPIOLOG(fmt, arg...)   dprintf(INFO,GPIOTAG fmt, ##arg)
#define GPIOMSG(fmt, arg...)   dprintf(INFO,fmt, ##arg)
#define GPIOERR(fmt, arg...)   dprintf(INFO,GPIOTAG "%5d: "fmt, __LINE__, ##arg)
#define GPIOFUC(fmt, arg...)   //dprintk(INFO,GPIOTAG "%s\n", __FUNCTION__)
#define GIO_INVALID_OBJ(ptr)   ((ptr) != gpio_obj)
/******************************************************************************
Enumeration/Structure
******************************************************************************/
#if defined(MACH_FPGA)
S32 mt_set_gpio_dir(u32 pin, u32 dir)           {return RSUCCESS;}
S32 mt_get_gpio_dir(u32 pin)                {return GPIO_DIR_UNSUPPORTED;}
S32 mt_set_gpio_pull_enable(u32 pin, u32 enable)    {return RSUCCESS;}
S32 mt_get_gpio_pull_enable(u32 pin)            {return GPIO_PULL_EN_UNSUPPORTED;}
S32 mt_set_gpio_pull_select(u32 pin, u32 select)    {return RSUCCESS;}
S32 mt_get_gpio_pull_select(u32 pin)            {return GPIO_PULL_UNSUPPORTED;}
S32 mt_set_gpio_smt(u32 pin, u32 enable)        {return RSUCCESS;}
S32 mt_get_gpio_smt(u32 pin)                {return GPIO_SMT_UNSUPPORTED;}
S32 mt_set_gpio_ies(u32 pin, u32 enable)        {return RSUCCESS;}
S32 mt_get_gpio_ies(u32 pin)                {return GPIO_IES_UNSUPPORTED;}
S32 mt_set_gpio_out(u32 pin, u32 output)        {return RSUCCESS;}
S32 mt_get_gpio_out(u32 pin)                {return GPIO_OUT_UNSUPPORTED;}
S32 mt_get_gpio_in(u32 pin)                 {return GPIO_IN_UNSUPPORTED;}
S32 mt_set_gpio_mode(u32 pin, u32 mode)         {return RSUCCESS;}
S32 mt_get_gpio_mode(u32 pin)               {return GPIO_MODE_UNSUPPORTED;}
#else
struct mt_gpio_obj {
	GPIO_REGS       *reg;
};
static struct mt_gpio_obj gpio_dat = {
	.reg  = (GPIO_REGS*)(GPIO_BASE),
};
static struct mt_gpio_obj *gpio_obj = &gpio_dat;
#define REGSET (4)
#define REGCLR (8)

/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_dir_chip(u32 pin, u32 dir)
{
	u32 bit;
	u32 reg;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (dir >= GPIO_DIR_MAX)
		return -ERINVAL;

	bit = DIR_offset[pin].offset;
	reg = GPIO_RD32(DIR_addr[pin].addr);

	if (dir == GPIO_DIR_IN)
		reg &= (~(1<<bit));
	else
		reg |= (1 << bit);

	GPIO_WR32(DIR_addr[pin].addr,reg);

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_dir_chip(u32 pin)
{
	u32 pos;
	u32 bit;
	u32 reg;
	struct mt_gpio_obj *obj = gpio_obj;

	if (!obj)
		return -ERACCESS;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	pos = pin / MAX_GPIO_REG_BITS;
	bit = pin % MAX_GPIO_REG_BITS;

	reg = GPIO_RD32(&obj->reg->dir[pos].val);
	return (((reg & (1L << bit)) != 0)? 1: 0);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_pull_enable_chip(u32 pin, u32 enable)
{
	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;
	/*PUPD type and PULLEN type IO abstraction*/
	if (PULLEN_offset[pin].offset == -1) {
		return GPIO_PULL_EN_UNSUPPORTED;
	} else {
		if (enable == GPIO_PULL_DISABLE)
			GPIO_SET_BITS((1L << (PULLEN_offset[pin].offset)), PULLEN_addr[pin].addr + REGCLR);
		else
			GPIO_SET_BITS((1L << (PULLEN_offset[pin].offset)), PULLEN_addr[pin].addr + REGSET);
	}

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_pull_enable_chip(u32 pin)
{
	unsigned long data;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (PULLEN_offset[pin].offset == -1) {
		return GPIO_PULL_EN_UNSUPPORTED;
	} else {
		data = GPIO_RD32(PULLEN_addr[pin].addr);

		return (((data & (1L << (PULLEN_offset[pin].offset))) != 0)? 1: 0);
	}
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_smt_chip(u32 pin, u32 enable)
{
	u32 reg=0;
	u32 bit=0;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (SMT_offset[pin].offset == -1) {
		return GPIO_SMT_UNSUPPORTED;

	} else {
		bit = SMT_offset[pin].offset;
		reg = GPIO_RD32(SMT_addr[pin].addr);
		if (enable == GPIO_SMT_DISABLE)
			//reg &= (~(1<<bit));
			GPIO_SET_BITS((1L << bit), SMT_addr[pin].addr + REGCLR);
		else
			//reg |= (1 << bit);
			GPIO_SET_BITS((1L << bit), SMT_addr[pin].addr + REGSET);
	}

	//GPIO_WR32(SMT_addr[pin].addr, reg);

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_smt_chip(u32 pin)
{
	unsigned long data;
	u32 bit =0;
	bit = SMT_offset[pin].offset;
	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (SMT_offset[pin].offset == -1) {
		return GPIO_SMT_UNSUPPORTED;
	} else {
		data = GPIO_RD32(SMT_addr[pin].addr);
		return (((data & (1L << bit)) != 0)? 1: 0);
	}
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_ies_chip(u32 pin, u32 enable)
{
	//unsigned long flags;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (IES_offset[pin].offset == -1) {
		return GPIO_IES_UNSUPPORTED;
	} else {
		if (enable == GPIO_IES_DISABLE)
			GPIO_SET_BITS((1L << (IES_offset[pin].offset)), IES_addr[pin].addr + REGCLR);
		else
			GPIO_SET_BITS((1L << (IES_offset[pin].offset)), IES_addr[pin].addr + REGSET);
	}

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_ies_chip(u32 pin)
{
	unsigned long data;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (IES_offset[pin].offset == -1) {
		return GPIO_IES_UNSUPPORTED;
	} else {
		data = GPIO_RD32(IES_addr[pin].addr);

		return (((data & (1L << (IES_offset[pin].offset))) != 0)? 1: 0);
	}
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_pull_select_chip(u32 pin, u32 select)
{
	//unsigned long flags;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;


	if ((PULLSEL_offset[pin].offset == -1)&& (PUPD_offset[pin].offset == -1)) {
		return GPIO_PULL_UNSUPPORTED;
	} else if (PULLSEL_offset[pin].offset == -1) {
		//spin_lock_irqsave(&mtk_gpio_lock, flags);
		/*
		 *  SIM1, SIM2 may need special care for resistance selection
		 */
		if (select == GPIO_PULL_DOWN) {
			GPIO_SET_BITS((1L << (PUPD_offset[pin].offset+2)), PUPD_addr[pin].addr + REGSET);
		} else {
			GPIO_SET_BITS((1L << (PUPD_offset[pin].offset+2)), PUPD_addr[pin].addr + REGCLR);
		}
		//spin_unlock_irqrestore(&mtk_gpio_lock, flags);
	} else {
		if (select == GPIO_PULL_DOWN)
			GPIO_SET_BITS((1L << (PULLSEL_offset[pin].offset)), PULLSEL_addr[pin].addr + REGCLR);
		else
			GPIO_SET_BITS((1L << (PULLSEL_offset[pin].offset)), PULLSEL_addr[pin].addr + REGSET);
	}

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_pull_select_chip(u32 pin)
{
	unsigned long data;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if ((PULLSEL_offset[pin].offset == -1) && (PUPD_offset[pin].offset == -1)) {
		return GPIO_PULL_UNSUPPORTED;
	} else if (PULLSEL_offset[pin].offset == -1) {
		data = GPIO_RD32(PUPD_addr[pin].addr);

		return (((data & (1L << (PUPD_offset[pin].offset+2))) != 0)? 0: 1);
	} else {
		data = GPIO_RD32(PULLSEL_addr[pin].addr);

		return (((data & (1L << (PULLSEL_offset[pin].offset))) != 0)? 1: 0);
	}
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_out_chip(u32 pin, u32 output)
{
	u32 pos;
	u32 bit;
	u32 reg=0;
	//struct mt_gpio_obj *obj = gpio_obj;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (output >= GPIO_OUT_MAX)
		return -ERINVAL;

	bit = DATAOUT_offset[pin].offset;

	reg = GPIO_RD32(DATAOUT_addr[pin].addr);
	if (output == GPIO_OUT_ZERO)
		reg &= (~(1<<bit));
	else
		reg |= (1 << bit);

	GPIO_WR32(DATAOUT_addr[pin].addr,reg);

	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_out_chip(u32 pin)
{

	u32 bit;
	u32 reg;


	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	bit = DATAOUT_offset[pin].offset;

	reg = GPIO_RD32(DATAOUT_addr[pin].addr);

	return (((reg & (1L << bit)) != 0)? 1: 0);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_in_chip(u32 pin)
{
	u32 pos;
	u32 bit;
	u32 reg;
	struct mt_gpio_obj *obj = gpio_obj;

	if (!obj)
		return -ERACCESS;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	pos = pin / MAX_GPIO_REG_BITS;
	bit = pin % MAX_GPIO_REG_BITS;

	reg = GPIO_RD32(&obj->reg->din[pos].val);
	return (((reg & (1L << bit)) != 0)? 1: 0);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_mode_chip(u32 pin, u32 mode)
{
	u32 pos;
	u32 bit;
	u32 reg;

	struct mt_gpio_obj *obj = gpio_obj;

	if (!obj)
		return -ERACCESS;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;

	if (mode >= GPIO_MODE_MAX)
		return -ERINVAL;


#ifdef MODE_MWR
	/*
	 *  if MWR is supported, no need to read before write.
	 *  MWR[3:0] has 4 bits not 3 bits ; additional 1 bit,MWR[3], is for update enable
	 */
	reg = 0;
	pos = pin / MAX_GPIO_MODE_PER_REG;
	bit = pin % MAX_GPIO_MODE_PER_REG;

	reg = ((1L << (GPIO_MODE_BITS*bit)) << 3) | (mode << (GPIO_MODE_BITS*bit));

	GPIO_WR32(&obj->reg->mode[pos]._align1, reg);

#else
	/* There is no mwr register for simple register setting
	 * Need 1R+1W to set MODE registers
	 */
	u32 mask = (1L << GPIO_MODE_BITS) - 1;
	bit = MODE_offset[pin].offset;
	mode = mode & mask;

	reg = GPIO_RD32(MODE_addr[pin].addr);

	reg &= (~(mask << bit));
	reg |= (mode << bit);
	GPIO_WR32( MODE_addr[pin].addr,reg);


#endif
	return RSUCCESS;
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_mode_chip(u32 pin)
{

	u32 bit;
	u32 reg;
	u32 mask = (1L << GPIO_MODE_BITS) - 1;

	if (pin >= MAX_GPIO_PIN)
		return -ERINVAL;


	bit = MODE_offset[pin].offset;
	reg = GPIO_RD32(MODE_addr[pin].addr);
	return ((reg >> bit) & mask);
}
/*---------------------------------------------------------------------------*/
void mt_gpio_pin_decrypt(u32 *cipher)
{
	//just for debug, find out who used pin number directly
	if ((*cipher & (0x80000000)) == 0) {
		GPIOERR("GPIO%u HARDCODE warning!!! \n",(unsigned int)*cipher);
		//dump_stack();
		//return;
	}

	//GPIOERR("Pin magic number is %x\n",*cipher);
	*cipher &= ~(0x80000000);
	return;
}
//set GPIO function in fact
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_dir(u32 pin, u32 dir)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_dir_chip(pin,dir);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_dir(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_dir_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_pull_enable(u32 pin, u32 enable)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_pull_enable_chip(pin,enable);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_pull_enable(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_pull_enable_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_pull_select(u32 pin, u32 select)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_pull_select_chip(pin,select);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_pull_select(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_pull_select_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_smt(u32 pin, u32 enable)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_smt_chip(pin,enable);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_smt(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_smt_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_ies(u32 pin, u32 enable)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_ies_chip(pin,enable);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_ies(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_ies_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_out(u32 pin, u32 output)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_out_chip(pin,output);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_out(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_out_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_in(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_in_chip(pin);
}
/*---------------------------------------------------------------------------*/
S32 mt_set_gpio_mode(u32 pin, u32 mode)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_set_gpio_mode_chip(pin,mode);
}
/*---------------------------------------------------------------------------*/
S32 mt_get_gpio_mode(u32 pin)
{
	mt_gpio_pin_decrypt(&pin);
	return mt_get_gpio_mode_chip(pin);
}
/*****************************************************************************/
/* Self test operation                                                           */
/*****************************************************************************/
#if GPIO_SELF_TEST
void mt_gpio_self_test(void)
{
	int i, val;
	for (i = 0; i < GPIO_MAX; i++) {
		S32 res,old;
		GPIOMSG("GPIO-%3d test\n", i);
		/*direction test*/
		old = mt_get_gpio_dir(i);
		if (old == 0 || old == 1) {
			GPIOLOG(" dir old = %d\n", old);
		} else {
			GPIOERR(" test dir fail: %d\n", old);
			break;
		}
		if ((res = mt_set_gpio_dir(i, GPIO_DIR_OUT)) != RSUCCESS) {
			GPIOERR(" set dir out fail: %d\n", res);
			break;
		} else if ((res = mt_get_gpio_dir(i)) != GPIO_DIR_OUT) {
			GPIOERR(" get dir out fail: %d\n", res);
			break;
		} else {
			/*output test*/
			S32 out = mt_get_gpio_out(i);
			if (out != 0 && out != 1) {
				GPIOERR(" get out fail = %d\n", old);
				break;
			}
			for (val = 0; val < GPIO_OUT_MAX; val++) {
				if ((res = mt_set_gpio_out(i,0)) != RSUCCESS) {
					GPIOERR(" set out[%d] fail: %d\n", val, res);
					break;
				} else if ((res = mt_get_gpio_out(i)) != 0) {
					GPIOERR(" get out[%d] fail: %d\n", val, res);
					break;
				}
			}
			if ((res = mt_set_gpio_out(i,out)) != RSUCCESS) {
				GPIOERR(" restore out fail: %d\n", res);
				break;
			}
		}

		if ((res = mt_set_gpio_dir(i, GPIO_DIR_IN)) != RSUCCESS) {
			GPIOERR(" set dir in fail: %d\n", res);
			break;
		} else if ((res = mt_get_gpio_dir(i)) != GPIO_DIR_IN) {
			GPIOERR(" get dir in fail: %d\n", res);
			break;
		} else {
			GPIOLOG(" input data = %d\n", res);
		}

		if ((res = mt_set_gpio_dir(i, old)) != RSUCCESS) {
			GPIOERR(" restore dir fail: %d\n", res);
			break;
		}
		for (val = 0; val < GPIO_PULL_EN_MAX; val++) {
			if ((res = mt_set_gpio_pull_enable(i,val)) != RSUCCESS) {
				GPIOERR(" set pullen[%d] fail: %d\n", val, res);
				break;
			} else if ((res = mt_get_gpio_pull_enable(i)) != val) {
				GPIOERR(" get pullen[%d] fail: %d\n", val, res);
				break;
			}
		}
		if ((res = mt_set_gpio_pull_enable(i, old)) != RSUCCESS) {
			GPIOERR(" restore pullen fail: %d\n", res);
			break;
		}

		/*pull select test*/
		old = mt_get_gpio_pull_select(i);
		if (old == 0 || old == 1)
			GPIOLOG(" pullsel old = %d\n", old);
		else {
			GPIOERR(" pullsel fail: %d\n", old);
			break;
		}
		for (val = 0; val < GPIO_PULL_MAX; val++) {
			if ((res = mt_set_gpio_pull_select(i,val)) != RSUCCESS) {
				GPIOERR(" set pullsel[%d] fail: %d\n", val, res);
				break;
			} else if ((res = mt_get_gpio_pull_select(i)) != val) {
				GPIOERR(" get pullsel[%d] fail: %d\n", val, res);
				break;
			}
		}
		if ((res = mt_set_gpio_pull_select(i, old)) != RSUCCESS) {
			GPIOERR(" restore pullsel fail: %d\n", res);
			break;
		}

		/*mode control*/
		old = mt_get_gpio_mode(i);
		if ((old >= GPIO_MODE_00) && (val < GPIO_MODE_MAX)) {
			GPIOLOG(" mode old = %d\n", old);
		} else {
			GPIOERR(" get mode fail: %d\n", old);
			break;
		}
		for (val = 0; val < GPIO_MODE_MAX; val++) {
			if ((res = mt_set_gpio_mode(i, val)) != RSUCCESS) {
				GPIOERR("set mode[%d] fail: %d\n", val, res);
				break;
			} else if ((res = mt_get_gpio_mode(i)) != val) {
				GPIOERR("get mode[%d] fail: %d\n", val, res);
				break;
			}
		}
		if ((res = mt_set_gpio_mode(i,old)) != RSUCCESS) {
			GPIOERR(" restore mode fail: %d\n", res);
			break;
		}
	}
	GPIOLOG("GPIO test done\n");
}
/*----------------------------------------------------------------------------*/
void mt_gpio_dump(void)
{
	GPIO_REGS *regs = (GPIO_REGS*)(GPIO_BASE);
	int idx;

	GPIOMSG("---# dir #-----------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->dir)/sizeof(regs->dir[0]); idx++) {
		GPIOMSG("0x%04X ", regs->dir[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("\n---# pullen #--------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->pullen)/sizeof(regs->pullen[0]); idx++) {
		GPIOMSG("0x%04X ", regs->pullen[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("\n---# pullsel #-------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->pullsel)/sizeof(regs->pullsel[0]); idx++) {
		GPIOMSG("0x%04X ", regs->pullsel[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("\n---# dout #----------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->dout)/sizeof(regs->dout[0]); idx++) {
		GPIOMSG("0x%04X ", regs->dout[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("\n---# din  #----------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->din)/sizeof(regs->din[0]); idx++) {
		GPIOMSG("0x%04X ", regs->din[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("\n---# mode #----------------------------------------------------------------\n");
	for (idx = 0; idx < sizeof(regs->mode)/sizeof(regs->mode[0]); idx++) {
		GPIOMSG("0x%04X ", regs->mode[idx].val);
		if (7 == (idx % 8)) GPIOMSG("\n");
	}
	GPIOMSG("sim0 0x%04X ", regs->sim_ctrl[0].val);
	GPIOMSG("sim1 0x%04X ", regs->sim_ctrl[1].val);
	GPIOMSG("sim2 0x%04X ", regs->sim_ctrl[2].val);
	GPIOMSG("sim3 0x%04X ", regs->sim_ctrl[3].val);

	GPIOMSG("keypad0 0x%04X ", regs->kpad_ctrl[0].val);
	GPIOMSG("keypad1 0x%04X ", regs->kpad_ctrl[1].val);

	GPIOMSG("\n---------------------------------------------------------------------------\n");
}
/*---------------------------------------------------------------------------*/
void mt_gpio_read_pin(GPIO_CFG* cfg, int method)
{
	if (method == 0) {
		GPIO_REGS *cur = (GPIO_REGS*)GPIO_BASE;
		u32 mask = (1L << GPIO_MODE_BITS) - 1;
		int num, bit,idx=cfg->no;
		num = idx / MAX_GPIO_REG_BITS;
		bit = idx % MAX_GPIO_REG_BITS;
		cfg->pullsel= (cur->pullsel[num].val & (1L << bit)) ? (1) : (0);
		cfg->din    = (cur->din[num].val & (1L << bit)) ? (1) : (0);
		cfg->dout   = (cur->dout[num].val & (1L << bit)) ? (1) : (0);
		cfg->pullen = (cur->pullen[num].val & (1L << bit)) ? (1) : (0);
		cfg->dir    = (cur->dir[num].val & (1L << bit)) ? (1) : (0);
		num = idx / MAX_GPIO_MODE_PER_REG;
		bit = idx % MAX_GPIO_MODE_PER_REG;
		cfg->mode   = (cur->mode[num].val >> (GPIO_MODE_BITS*bit)) & mask;
	} else if (method == 1) {
		int idx=cfg->no;
		cfg->pullsel= mt_get_gpio_pull_select(idx);
		cfg->din    = mt_get_gpio_in(idx);
		cfg->dout   = mt_get_gpio_out(idx);
		cfg->pullen = mt_get_gpio_pull_enable(idx);
		cfg->dir    = mt_get_gpio_dir(idx);
		cfg->mode   = mt_get_gpio_mode(idx);
	}
}
/*---------------------------------------------------------------------------*/
void mt_gpio_dump_addr(void)
{
	int idx;
	struct mt_gpio_obj *obj = gpio_obj;
	GPIO_REGS *reg = obj->reg;

	GPIOMSG("# direction\n");
	for (idx = 0; idx < sizeof(reg->dir)/sizeof(reg->dir[0]); idx++)
		GPIOMSG("val[%2d] %p\nset[%2d] %p\nrst[%2d] %p\n", idx, &reg->dir[idx].val, idx, &reg->dir[idx].set, idx, &reg->dir[idx].rst);
	GPIOMSG("# pull enable\n");
	for (idx = 0; idx < sizeof(reg->pullen)/sizeof(reg->pullen[0]); idx++)
		GPIOMSG("val[%2d] %p\nset[%2d] %p\nrst[%2d] %p\n", idx, &reg->pullen[idx].val, idx, &reg->pullen[idx].set, idx, &reg->pullen[idx].rst);
	GPIOMSG("# pull select\n");
	for (idx = 0; idx < sizeof(reg->pullsel)/sizeof(reg->pullsel[0]); idx++)
		GPIOMSG("val[%2d] %p\nset[%2d] %p\nrst[%2d] %p\n", idx, &reg->pullsel[idx].val, idx, &reg->pullsel[idx].set, idx, &reg->pullsel[idx].rst);
	GPIOMSG("# data output\n");
	for (idx = 0; idx < sizeof(reg->dout)/sizeof(reg->dout[0]); idx++)
		GPIOMSG("val[%2d] %p\nset[%2d] %p\nrst[%2d] %p\n", idx, &reg->dout[idx].val, idx, &reg->dout[idx].set, idx, &reg->dout[idx].rst);
	GPIOMSG("# data input\n");
	for (idx = 0; idx < sizeof(reg->din)/sizeof(reg->din[0]); idx++)
		GPIOMSG("val[%2d] %p\n", idx, &reg->din[idx].val);
	GPIOMSG("# mode\n");
	for (idx = 0; idx < sizeof(reg->mode)/sizeof(reg->mode[0]); idx++)
		GPIOMSG("val[%2d] %p\nset[%2d] %p\nrst[%2d] %p\n", idx, &reg->mode[idx].val, idx, &reg->mode[idx].set, idx, &reg->mode[idx].rst);
}
#endif
#endif