Diff: max77801.cpp

Revision:

1:96e05ce748c1

Parent:

0:b9790d4a35fd

diff -r b9790d4a35fd -r 96e05ce748c1 max77801.cpp
--- a/max77801.cpp	Mon Nov 20 14:57:49 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,347 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
- * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of Maxim Integrated
- * Products, Inc. shall not be used except as stated in the Maxim Integrated
- * Products, Inc. Branding Policy.
- *
- * The mere transfer of this software does not imply any licenses
- * of trade secrets, proprietary technology, copyrights, patents,
- * trademarks, maskwork rights, or any other form of intellectual
- * property whatsoever. Maxim Integrated Products, Inc. retains all
- * ownership rights.
- *******************************************************************************
- */
- #include "max77801.h"
- 
-/***** Definitions *****/
-#define I2C_ADDR            (0x18<<1)
- 
-/**
-  * MAX77801 constructor.
-  *
-  * @param i2c I2C object to use.
-  */
-MAX77801::MAX77801(I2C *i2c) :
-    i2c_(i2c)
-{
-    i2c_owner = false;
-}
- 
-/**
-  * MAX77801 destructor.
-  */
-MAX77801::~MAX77801()
-{
-    if(i2c_owner) {
-        delete i2c_;
-    }
-}
-
-/**
-  * @brief   Initialize MAX77801
-  */
-int32_t MAX77801::init()
-{ 
-    int32_t data;
-    
-    data = write_register(REG_CONFIG1, 0x0E);
-    if(data < 0)
-        return -1;
-    
-    data = write_register(REG_CONFIG2, 0x70);
-    if(data < 0)
-        return -1;
-        
-    return 0;
-}
- 
-/**
-  * @brief   Read Register
-  * @details Reads data from MAX77801 register
-  *
-  * @param   reg_addr Register to read
-  * @returns data if no errors, -1 if error.
-  */
-int32_t MAX77801::read_register(MAX77801::registers_t reg_no)
-{
-    char data;
- 
-    data = reg_no;
-    if (i2c_->write(I2C_ADDR, &data, 1, true) != 0) {
-        return -1;
-    }
- 
-    if (i2c_->read(I2C_ADDR | 0x01, &data, 1) != 0) {
-        return -1;
-    }
- 
-    return (0x0 + data);
-}
- 
-/**
-  * @brief   Write Register
-  * @details Writes data to MAX77756 register
-  *
-  * @param   reg_addr Register to write
-  * @param   reg_data Data to write
-  * @returns 0 if no errors, -1 if error.
-  */
-int32_t MAX77801::write_register(MAX77801::registers_t reg_no, char reg_data)
-{
-    char data[2];
- 
-    data[0] = reg_no;
-    data[1] = reg_data;
-    if (i2c_->write(I2C_ADDR, data, 2) != 0) {
-        return -1;
-    }
- 
-    return 0;
-}
-
-/**
-  * @brief   Update Register data
-  * @details Update bits data of a register 
-  *
-  * @param   reg_no Register Number to be updated
-  * @param   mask Mask Data
-  * @param   reg_data bit data
-  * @returns 0 if no errors, -1 if error.
-  */
-int32_t MAX77801::update_register
-(MAX77801::registers_t reg_no, char reg_mask,  char reg_data)
-{
-    int32_t data;
- 
-    data = read_register(reg_no);
-    if(data < 0)
-        return -1;
-    
-    data &= ~reg_mask;
-    data |= reg_data;
-    
-    data = write_register(reg_no, (char)(data & 0xff));
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   Get version info
-  * @details 0 : Plain
-  *
-  * @param   None
-  * @returns version info.
-  */
-char*  MAX77801::get_version()
-{
-    int32_t data;
-    
-    data = read_register(REG_DEVICE_ID);
-    switch ((data >> 3) & 0xf)
-    {
-        case 0x0: 
-            return "PLAIN";
-        case 0x1: 
-            return "-1Z";
-        case 0x2:
-            return "-2Z";        
-    }
-    return "UNKNOWN";
-}
-
-/**
-  * @brief   Get revision info
-  * @details 0x1 : PASS1
-  *          0x2 : PASS2  
-  *          0x3 : PASS3
-  * @param   None
-  * @returns revision info.
-  */
-char*  MAX77801::get_revision()
-{
-    int32_t data;
-    
-    data = read_register(REG_DEVICE_ID);
-    switch(data & 0x7)
-    {
-        case 0x0: 
-            return "PASS1";
-        case 0x1: 
-            return "PASS2";
-        case 0x2:
-            return "PASS3";        
-    }
-    return "UNKNOWN";    
-}
-
-/**
-  * @brief   Get status
-  * @details Get status register data
-  *          BIT3 : Junction Temperature info
-  *          BIT2 : Buck Boost POK Status
-  *          BIT1 : Buck Boost OVP Status
-  *          BIT0 : Buck Boost OCP Status
-  * @param   None
-  * @returns status register data.
-  */
-int32_t MAX77801::get_status()
-{    
-    int32_t data;
-    
-    data = read_register(REG_DEVICE_ID);
-    if(data < 0)
-        return -1;
-    return (data & 0x0f);
-}
-
-/**
-  * @brief   config enable bit
-  * @details Set a Config bit controlled using enabled/disabled
-  * @param   config : config bit
-  * @param   en : enable/disable
-  * @returns 0 if no errors, -1 if error.
-  */
-int32_t MAX77801::config_enable(MAX77801::config_enabled_t config,
-                                    MAX77801::enable_t en)
-{    
-    int32_t data;
-    
-    switch(config)
-    {
-        case ACTIVE_DISCHARGE:
-            data = update_register(REG_CONFIG1, 0x02, ((char)en) <<1);
-        break;
-        case FORCED_PWM:
-            data = update_register(REG_CONFIG1, 0x01, ((char)en) <<0);
-        break;
-        case BUCK_BOOST_OUTPUT:
-            data = update_register(REG_CONFIG2, 0x40, ((char)en) <<6);
-        break;
-        case EN_PULL_DOWN:
-            data = update_register(REG_CONFIG2, 0x20, ((char)en) <<5);
-        break;
-        default:
-            return -1;
-    }
-    
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   Config Ramp Up
-  * @details Set BB_RU_SR
-  * 
-  * @param   config : config value
-  * @returns 0 if no errors, -1 if error.
-  */           
-int32_t MAX77801::config_ramp_up(MAX77801::ramp_up_rate_t config)
-{
-    int32_t data;
-    
-    data = update_register(REG_CONFIG1, 0x20, ((char)config) <<5);
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   Config Ramp Down
-  * @details Set BB_RD_SR
-  * 
-  * @param   config : config value
-  * @returns 0 if no errors, -1 if error.
-  */           
-int32_t MAX77801::config_ramp_down(MAX77801::ramp_dn_rate_t config)
-{
-    int32_t data;
-    
-    data = update_register(REG_CONFIG1, 0x10, ((char)config) <<4);
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   Config OVP Threshold
-  * @details Set BB_OVP_TH bits
-  * 
-  * @param   config : config value
-  * @returns 0 if no errors, -1 if error.
-  */           
-int32_t MAX77801::config_ovp_threshold(MAX77801::output_ovp_threshold_t config)
-{    
-    int32_t data;
-    
-    data = update_register(REG_CONFIG1, 0x0C, ((char)config) <<2);
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   config pokpol active bit
-  * @details Set POK_POL Bit
-  * 
-  * @param   lowHigh : active value
-  * @returns 0 if no errors, -1 if error.
-  */           
-int32_t MAX77801::config_pokpol_active(MAX77801::low_high_t lowHigh)
-{
-    int32_t data;
-    
-    data = update_register(REG_CONFIG2, 0x10, ((char)lowHigh) <<4);
-    if(data < 0)
-        return -1;
-    return 0;
-}
-
-/**
-  * @brief   Set VOUT Voltage when DVS = Low
-  * @details Set Vout Voltage
-  *
-  * @param   vout level from 2.6000V ~ 4.1875V with 0.0125V step
-  * @returns 0 if no errors, -1 if error.
-  */
-  
-int32_t MAX77801::set_vout(double level, MAX77801::low_high_t dvs)
-{
-    int32_t ret_val = 0;
-    char reg_data = 0;
-    
-    if(level < 2.6000 || level > 4.1875)
-        return -1;
-    
-    reg_data = (char)((level-2.6000)*80);
-    
-    if(dvs == VAL_LOW)
-        ret_val = write_register(REG_VOUT_DVS_L,reg_data);
-    else
-        ret_val = write_register(REG_VOUT_DVS_H,reg_data);
-    
-    if(ret_val < 0)
-        return -1;
-    return 0;
-}
-