/*
*********************************************************************************************************
*                                                AR100 SYSTEM
*                                     AR100 Software System Develop Kits
*                                                pmu module
*
*                                    (c) Copyright 2012-2016, Sunny China
*                                             All Rights Reserved
*
* File    : pmu.c
* By      : Sunny
* Version : v1.0
* Date    : 2012-5-22
* Descript: power management unit.
* Update  : date                auther      ver     notes
*           2012-5-22 13:33:03  Sunny       1.0     Create this file.
*********************************************************************************************************
*/

#include "pmu_i.h"

/**
 * tcs4838 voltages info table,
 * the index of table is voltage type.
 */
pmu_onoff_reg_bitmap_t tcs4838_onoff_reg_bitmap[] = {
	//dev_addr               //reg_addr          //offset //state //dvm_en
	{RSB_RTSADDR_TCS4838,    TCS4838_VSEL0,   	 7,    1,    0},//TCS4838_DCDC0
	{RSB_RTSADDR_TCS4838,    TCS4838_VSEL1,   	 7,    1,    0},//TCS4838_DCDC1
};

/**
 * tcs4838 check,
 */
s32 tcs4838_is_exist(void)
{
	u8 devaddr;
	u8 regaddr;
	u8 data;

	devaddr = RSB_RTSADDR_TCS4838;
	regaddr = TCS4838_ID1;

	pmu_reg_read(&devaddr, &regaddr, &data, 1);
	data &= 0xE0;

	if (data == 0x80) {
		return TRUE;
	}

	return FALSE;
}

/**
 * tcs4838 specific function,
 */

s32 tcs4838_pmu_set_voltage_state(u32 type, u32 state)
{
	u8 devaddr;
	u8 regaddr;
	u8 data;
	u32 offset;

	devaddr = tcs4838_onoff_reg_bitmap[type].devaddr;
	regaddr = tcs4838_onoff_reg_bitmap[type].regaddr;
	offset  = tcs4838_onoff_reg_bitmap[type].offset;
//	tcs4838_onoff_reg_bitmap[type].state = state;

	//read-modify-write
	pmu_reg_read(&devaddr, &regaddr, &data, 1);
	data &= (~(1 << offset));
	data |= (state << offset);
	pmu_reg_write(&devaddr, &regaddr, &data, 1);

	if (state == POWER_VOL_ON) {
		//delay 1ms for open PMU output
		time_mdelay(1);
	}

	return OK;
}