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**************************************************************************************************/
/*******************************************************************************
* @file pwm.h
* @brief Contains all functions support for pwm driver
* @version 0.0
* @date 30. Oct. 2017
* @author Ding
*
* Copyright(C) 2016, PhyPlus Semiconductor
* All rights reserved.
*
*******************************************************************************/
#ifndef __PWM__H__
#define __PWM__H__
#include "types.h"
#include "gpio.h"
#include "common.h"
#define PWM_CH_BASE 0x4000E004UL
#define PWM_CTL0_ADDR(n) (PWM_CH_BASE + n*12)
#define PWM_CTL1_ADDR(n) (PWM_CH_BASE + 4 + n*12)
#define PWM_ENABLE_ALL do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(0);\
*(volatile unsigned int *) 0x4000e000 |= BIT(4);\
}while(0)
#define PWM_DISABLE_ALL do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(0);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(4);\
}while(0)
#define PWM_ENABLE_CH_012 do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(8);\
*(volatile unsigned int *) 0x4000e000 |= BIT(9);\
}while(0)
#define PWM_DISABLE_CH_012 do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(8);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(9);\
}while(0)
#define PWM_ENABLE_CH_345 do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(10);\
*(volatile unsigned int *) 0x4000e000 |= BIT(11);\
}while(0)
#define PWM_DISABLE_CH_345 do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(10);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(11);\
}while(0)
#define PWM_ENABLE_CH_01 do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(12);\
*(volatile unsigned int *) 0x4000e000 |= BIT(13);\
}while(0)
#define PWM_DISABLE_CH_01 do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(12);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(13);\
}while(0)
#define PWM_ENABLE_CH_23 do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(14);\
*(volatile unsigned int *) 0x4000e000 |= BIT(15);\
}while(0)
#define PWM_DISABLE_CH_23 do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(14);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(15);\
}while(0)
#define PWM_ENABLE_CH_45 do{\
*(volatile unsigned int *) 0x4000e000 |= BIT(16);\
*(volatile unsigned int *) 0x4000e000 |= BIT(17);\
}while(0)
#define PWM_DISABLE_CH_45 do{\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(16);\
*(volatile unsigned int *) 0x4000e000 &= ~BIT(17);\
}while(0)
#define PWM_INSTANT_LOAD_CH(n) subWriteReg(PWM_CTL0_ADDR(n),31,31,1)
#define PWM_NO_INSTANT_LOAD_CH(n) subWriteReg(PWM_CTL0_ADDR(n),31,31,0)
#define PWM_LOAD_CH(n) subWriteReg(PWM_CTL0_ADDR(n),16,16,1)
#define PWM_NO_LOAD_CH(n) subWriteReg(PWM_CTL0_ADDR(n),16,16,0)
#define PWM_SET_DIV(n,v) subWriteReg(PWM_CTL0_ADDR(n),14,12,v)
#define PWM_SET_MODE(n,v) subWriteReg(PWM_CTL0_ADDR(n),8,8,v)
#define PWM_SET_POL(n,v) subWriteReg(PWM_CTL0_ADDR(n),4,4,v)
#define PWM_ENABLE_CH(n) subWriteReg(PWM_CTL0_ADDR(n),0,0,1)
#define PWM_DISABLE_CH(n) subWriteReg(PWM_CTL0_ADDR(n),0,0,0)
#define PWM_SET_CMP_VAL(n,v) subWriteReg(PWM_CTL1_ADDR(n),31,16,v)
#define PWM_SET_TOP_VAL(n,v) subWriteReg(PWM_CTL1_ADDR(n),15,0,v)
#define PWM_GET_CMP_VAL(n) ((read_reg(PWM_CTL1_ADDR(n)) & 0xFFFF0000) >> 8)
#define PWM_GET_TOP_VAL(n) read_reg(PWM_CTL1_ADDR(n)) & 0x0000FFFF
/*************************************************************
* @brief enum variable, the number of PWM channels supported
*
*/
typedef enum{
PWM_CH0 = 0,
PWM_CH1 = 1,
PWM_CH2 = 2,
PWM_CH3 = 3,
PWM_CH4 = 4,
PWM_CH5 = 5
}PWMN_e;
/*************************************************************
* @brief enum variable used for PWM clock prescaler
*
*/
typedef enum{
PWM_CLK_NO_DIV = 0,
PWM_CLK_DIV_2 = 1, // 80k hz
PWM_CLK_DIV_4 = 2, // 40k hz
PWM_CLK_DIV_8 = 3, // 20k hz
PWM_CLK_DIV_16 = 4, // 10k hz
PWM_CLK_DIV_32 = 5, // 5k hz
PWM_CLK_DIV_64 = 6, // 2.5k hz
PWM_CLK_DIV_128 = 7 // 1.25k hz
}PWM_CLK_DIV_e;
/*************************************************************
* @brief enum variable used for PWM work mode setting
*
*/
typedef enum{
PWM_CNT_UP = 0,
PWM_CNT_UP_AND_DOWN = 1
}PWM_CNT_MODE_e;
/*************************************************************
* @brief enum variable used for PWM output polarity setting
*
*/
typedef enum{
PWM_POLARITY_RISING = 0,
PWM_POLARITY_FALLING = 1
}PWM_POLARITY_e;
/**************************************************************************************
* @fn hal_pwm_init
*
* @brief This function process for pwm initial
*
* input parameters
*
* @param PWMN_e pwmN : pwm channel
* PWM_CLK_DIV_e pwmDiv : clock prescaler of PWM channel
* PWM_CNT_MODE_e pwmMode : count mode of PWM channel
* PWM_POLARITY_e pwmPolarity : output polarity setting of PWM channel
* unsigned short cmpVal : the compare value of PWM channel
* unsigned short cntTopVal : the counter top value of PWM channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_init(PWMN_e pwmN, PWM_CLK_DIV_e pwmDiv,
PWM_CNT_MODE_e pwmMode, PWM_POLARITY_e pwmPolarity);
/**************************************************************************************
* @fn hal_pwm_open_channel
*
* @brief This function process for pwm start working
*
* input parameters
*
* @param PWMN_e pwmN : pwm channel
* GPIO_Pin_e pwmPin : pwm pin number
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_open_channel(PWMN_e pwmN,GPIO_Pin_e pwmPin);
/**************************************************************************************
* @fn hal_pwm_close_channel
*
* @brief This function process for pwm stop working
*
* input parameters
*
* @param PWMN_e pwmN : pwm channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_close_channel(PWMN_e pwmN);
/**************************************************************************************
* @fn hal_pwm_destroy
*
* @brief This function process for pwm clear and disable
*
* input parameters
*
* @param PWMN_e pwmN : pwm channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_destroy(PWMN_e pwmN);
/**************************************************************************************
* @fn hal_pwm_set_count_val
*
* @brief This function process for change pwm count value
*
* input parameters
*
* @param PWMN_e pwmN : pwm channel
* uint16_t cmpVal : the compare value of PWM channel
* uint16_t cntTopVal : the counter top value of PWM channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_set_count_val(PWMN_e pwmN, uint16_t cmpVal, uint16_t cntTopVal);
void hal_pwm_start(void);
void hal_pwm_stop(void);
//new api,make use easily
typedef struct
{
PWMN_e pwmN;
GPIO_Pin_e pwmPin;
PWM_CLK_DIV_e pwmDiv;
PWM_CNT_MODE_e pwmMode;
PWM_POLARITY_e pwmPolarity;
uint16_t cmpVal;
uint16_t cntTopVal;
} pwm_ch_t;
/**************************************************************************************
* @fn hal_pwm_module_init
*
* @brief init pwm global variables
*
* input parameters
*
* @param None.
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_module_init(void);
/**************************************************************************************
* @fn hal_pwm_module_deinit
*
* @brief deinit pwm global variables
*
* input parameters
*
* @param None.
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_module_deinit(void);
/**************************************************************************************
* @fn hal_spi_pin_init
*
* @brief config and make a pwm start to work
*
* input parameters
*
* @param pwm_ch_t ch: pwm channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_ch_start(pwm_ch_t ch);
/**************************************************************************************
* @fn hal_pwm_ch_stop
*
* @brief make a pwm stop form working
*
* input parameters
*
* @param pwm_ch_t ch: pwm channel
*
* output parameters
*
* @param None.
*
* @return None.
**************************************************************************************/
void hal_pwm_ch_stop(pwm_ch_t ch);
#endif