/**
 ****************************************************************************************
 *
 * @file syscntl.c
 *
 * @brief DA14580 system controller driver.
 *
 * Copyright (C) 2012. Dialog Semiconductor Ltd, unpublished work. This computer 
 * program includes Confidential, Proprietary Information and is a Trade Secret of 
 * Dialog Semiconductor Ltd.  All use, disclosure, and/or reproduction is prohibited 
 * unless authorized in writing. All Rights Reserved.
 *
 * <bluetooth.support@diasemi.com> and contributors.
 *
 ****************************************************************************************
 */

#include "syscntl.h"
#include "datasheet.h"


/**
 ****************************************************************************************
 * @brief Sets the Nominal VBAT3V output voltage of the boost converter.
 *
 * @param[in] level DCDC VBAT3V output voltage level (see enum SYSCNTL_DCDC_VBAT3V_LEVEL).
 *
 * @return void
 ****************************************************************************************
 */
void syscntl_set_dcdc_vbat3v_level(enum SYSCNTL_DCDC_VBAT3V_LEVEL level)
{
    SetBits16(DCDC_CTRL2_REG, DCDC_VBAT3V_LEV, level);
}


/**
 ****************************************************************************************
 * @brief Sets AMBA clocks to minimum frequency
 *
 * @return void 
 ****************************************************************************************
 */
void syscntl_use_lowest_amba_clocks(void)
{
    SetBits16(CLK_AMBA_REG, PCLK_DIV, 3);   // lowest is 250KHz (div 8, source is @2MHz)
    SetBits16(CLK_AMBA_REG, HCLK_DIV, 3);   // lowest is 2MHz (div 8, source is @16MHz)
}


/**
 ****************************************************************************************
 * @brief Sets AMBA clocks to maximum frequency
 *
 * @return void 
 ****************************************************************************************
 */
void syscntl_use_highest_amba_clocks(void)
{
    SetBits16(CLK_AMBA_REG, PCLK_DIV, 0);
    SetBits16(CLK_AMBA_REG, HCLK_DIV, 0);
}