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/*
* pwr_driver.c
*
* Copyright (C) 2018, 2019 Mind Chasers Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "board.h"
#include "pmic.h"
#include "fsl_debug_console.h"
#include "fsl_common.h"
#include "fsl_i2c.h"
#include "fsl_gpio.h"
#include "main.h"
int power_init(i2c_master_transfer_t* pXfer, uint8_t* pBuff) {
bool repeat = false;
uint8_t addr,data;
uint8_t buf[2]; // write address followed by data
_loop:
PRINTF("Power Init\r\n");
// Read version
addr=PMIC_VERSION;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("Version: 0x%2x\r\n", *pBuff);
// Read PGOODZ
addr=PMIC_PGOODZ;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("PGOODZ: 0x%2x\r\n", *pBuff);
// Read MASK
addr=PMIC_MASK;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("MASK: 0x%2x\r\n", *pBuff);
// Read REG_CTRL
addr=PMIC_REG_CTRL;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("REG_CTRL: 0x%2x\r\n", *pBuff);
// Read CON_CTRL
addr=PMIC_CON_CTRL;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
// PRINTF("CON_CTRL: 0x%2x\r\n", *pBuff);
// Read CON_CTRL2
addr=PMIC_CON_CTRL2;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("CON_CTRL2: 0x%2x\r\n", *pBuff);
// Read DEFCORE
// We want 1.1V: 0xc
addr=PMIC_DEFCORE;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("DEFSLEW: 0x%2x\r\n", *pBuff);
// Read DEFSLEW
addr=PMIC_DEFSLEW;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("DEFSLEW: 0x%2x\r\n", *pBuff);
// Read LDO_CTRL
addr=PMIC_LDO_CTRL;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("LDO_CTRL: 0x%2x\r\n", *pBuff);
// Write LDO_CTRL
addr=PMIC_LDO_CTRL;
data=LDO2_2_5V<<4|LDO1_1_1V;
buf[0]=addr;
buf[1]=data;
i2c_write(pXfer, I2C_PMIC_ADDR, buf, 2);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("LDO_CTRL: 0x%2x\r\n", *pBuff);
GPIO_WritePinOutput(GPIOA, 19, 1);
// Read PGOODZ
addr=PMIC_PGOODZ;
i2c_write(pXfer, I2C_PMIC_ADDR, &addr, 1);
i2c_read(pXfer, I2C_PMIC_ADDR, (uint8_t*) pBuff, 1);
//PRINTF("PGOODZ: 0x%2x\r\n", *pBuff);
if (repeat) goto _loop;
return 0;
}
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