/**
 * @file hal_pwm.h
 * @author Xiao, Lifan (xiaolf6@midea.com)
 * @brief
 * @version 0.1
 * @date 2021-08-09
 *
 * @copyright Copyright (c) 2021
 *
 * @details The interface of PWM module
 *
 */

#ifndef _HAL_PWM_H_
#define _HAL_PWM_H_

#include "hal_config.h"

/****************************************************************
 *
 *                     Standard Interface
 *
 * *************************************************************/

/********************/
/* Type definations */
/********************/

/**
 * @brief The PWM wave type
 * @note Four type of PWM wave is supported, as
 *
 * RightAligned:
 *       ┌──────
 *       │
 *       │
 * ──────┘
 *
 * LeftAligned:
 * ──────┐
 *       │
 *       │
 *       └──────
 *
 * CenterAligned:
 *     ┌───┐
 *     │   │
 *     │   │
 * ────┘   └────
 *
 * CenterAlignedInverse:
 * ────┐   ┌────
 *     │   │
 *     │   │
 *     └───┘
 *
 */

typedef enum
{
    RightAligned,
    LeftAligned,
    CenterAligned,
    CenterAlignedInverse,
    EdgeAlignedAutoReverse,
#if HAL_PWM_SUPPORT_CUSTOM_VECTOR_TYPE
    Custom,
#endif
} Hal_Pwm_WaveModeEnum;

typedef enum
{
    VectorTypeUp,
    VectorTypeDown,
    VectorTypeUpDown,
    VectorTypeDownUp,
} Hal_Pwm_VectorType;

/******************************/
/* Global Interface Variables */
/******************************/

/* !!!Important!!! */
/* Interface Variable Should Not Be Modified By Application */

/**
 * @brief The clock of the pwm module (in unit Hz)
 *
 */
extern uint32_t Hal_Pwm_Clock;

/**
 * @brief The period of the pwm module (in unit Ticks)
 *
 */
extern uint32_t Hal_Pwm_PeriodTicks;

/**
 * @brief The period of the pwm module (in unit us)
 *
 */
extern uint32_t Hal_Pwm_PeriodUs;

/**
 * @brief Avaliable pwm channel number
 *
 */
extern const uint32_t Hal_Pwm_ChannelNum;

/**
 * @brief Actual phase duty cycle (in unit ticks)
 *
 */
extern uint32_t *Hal_Pwm_ActualDutyCycleTicks;

/**
 * @brief Drive pwm output status
 *
 */
extern int8_t Hal_Pwm_DriveOutputEnable;

/*************************/
/* Global Interface Hook */
/*************************/

/**
 * @brief Function hook called at Zero Interrupt
 *
 */
extern void (*Hal_Pwm_ZeroIsrHook)();

/**
 * @brief Function hook called at Period Interrupt
 *
 */
extern void (*Hal_Pwm_PeriodIsrHook)();

/*****************************************/
/* Application Layer Interface Functions */
/*****************************************/

/**
 * @brief Set the duty cycle for all channel (in q15 format)
 *
 * @param da Pointer to the list of duty cycles
 * @param channels The number of channel to set duty cycle
 *
 * @note If current PWM mode is EdgeAlignedAutoReverse, the modulation mode will reverse after calling this function
 */
void Hal_Pwm_SetDutyCycle(int32_t *da, int8_t channels);

/**
 * @brief Set the duty cycle for specified channel (in q15 format)
 *
 * @param duty duty cycle
 * @param chindex The index of channel to set duty cycle
 *
 * @note Calling this function will not affect PWM mode
 */
void Hal_Pwm_SetChannelDutyCycle(int32_t duty, int8_t chindex);

/**
 * @brief Set the pwm period (in ticks)
 *
 * @param ticks Pwm period
 */
void Hal_Pwm_SetPeriod(int32_t ticks);

/**
 * @brief Set the Wave Mode
 *
 * @param mode Target mode
 */
void Hal_Pwm_SetWaveMode(Hal_Pwm_WaveModeEnum mode);

/**
 * @brief Set the pwm output deadband
 *
 * @param ticks Deadband length
 */
void Hal_Pwm_SetDeadband(int32_t ticks);

/**
 * @brief Enable drive pwm immediately
 *
 */
void Hal_Pwm_EnableDriveOutput();

/**
 * @brief Disable drive pwm output immediately
 *
 */
void Hal_Pwm_DisableDriveOutput();

/**
 * @brief Enable channel pwm immediately
 *
 * @param ch_index Channel index
 */
void Hal_Pwm_EnableChannelOutput(uint8_t ch_index);

/**
 * @brief Disable channel pwm immediately
 *
 * @param ch_index Channel index
 */
void Hal_Pwm_DisableChannelOutput(uint8_t ch_index);

/**
 * @brief Enable standard hooks, function address for enable, 0 for disable
 *
 * @param zeroHook Zero interrupt hook address
 * @param prdHook Period interrupt hook address
 */
void Hal_Pwm_EnableStdHooks(void *zeroHook, void *prdHook);

/**************************************/
/* Platform Layer Interface Functions */
/**************************************/

/**
 * @brief Init pwm module
 *
 */
void Hal_Pwm_Init();

#if HAL_PWM_SUPPORT_CUSTOM_VECTOR_TYPE

/****************************************************************
 *
 *                    Extended Interface
 *            Support Custom Modulation Like TSPWM
 *         Different Vector Type On Different Channel
 *
 * *************************************************************/

void Hal_Pwm_Ext_SetCustomVectorType(Hal_Pwm_VectorType *type, uint8_t channels);

#endif

#if HAL_PWM_SUPPORT_SINGLE_RESISTOR_SAMPLING

/****************************************************************
 *
 *                    Extended Interface
 *              Support Single Resistor Sampling
 *
 * *************************************************************/

/*************************/
/* Global Interface Hook */
/*************************/

/**
 * @brief Function hook for pwm sampling trigger
 *
 */
void (*Hal_Pwm_Ext_SamplingTriggerHook)();

/*****************************************/
/* Application Layer Interface Functions */
/*****************************************/

/**
 * @brief Set the duty cycle of the extra channel, affect the
 * sampling trigger moment
 *
 * @param dutycycle Duty cycle in q15 format
 */
void Hal_Pwm_Ext_SetSamplingDutyCycle(uint32_t dutycycle);

/**************************************/
/* Platform Layer Interface Functions */
/**************************************/

/**
 * @brief Extra init process to support single resistor sampling
 * @note
 * An extra channel will be used to trigger sampling at attribute time.
 * The counter of extra channel always runs counting up mode for
 * controlling the sampling trigger time
 *
 */
void Hal_Pwm_Ext_Init();

#endif

#if HAL_PWM_SUPPORT_COMPLEMENTARY_PULSE_GENERATION

#endif

#if HAL_PWM_SUPPORT_HALF_PULSE_GENERATION

#endif

#endif