/**
 * @file  hal_pwm.h
 * @author  XRADIO IOT WLAN Team
 */

/*
 * Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *    1. Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the
 *       distribution.
 *    3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
 *       its contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _DRIVER_CHIP_HAL_PWM_H_
#define _DRIVER_CHIP_HAL_PWM_H_

#include "driver/chip/hal_def.h"
#include "driver/chip/hal_gpio.h"
#include "driver/chip/hal_clock.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief PWM group id.
 */
typedef enum {
	PWM_GROUP_0, /*!<PWM GROUP 0, include channel_0 and channel_1*/
	PWM_GROUP_1, /*!<PWM GROUP 1, include channel_2 and channel_3*/
	PWM_GROUP_2, /*!<PWM GROUP 2, include channel_4 and channel_5*/
	PWM_GROUP_3, /*!<PWM GROUP 3, include channel_6 and channel_7*/
	PWM_GROUP_NUM,
	PWM_GROUP_NULL = PWM_GROUP_NUM,
} PWM_GROUP_ID;

/**
 * @brief PWM channel id.
 */
typedef enum {
	PWM_GROUP0_CH0 = 0U,        /*!< bit 0    PORTA_PIN8 or PORTA_PIN19 */
	PWM_GROUP0_CH1 = 1U,        /*!< bit 1    PORTA_PIN9 or PORTA_PIN20 */
	PWM_GROUP1_CH2 = 2U,        /*!< bit 2    PORTA_PIN10 or PORTA_PIN21 */
	PWM_GROUP1_CH3 = 3U,        /*!< bit 3    PORTA_PIN11 or PORTA_PIN22 */
	PWM_GROUP2_CH4 = 4U,        /*!< bit 4    PORTA_PIN12 or PORTB_PIN0 */
	PWM_GROUP2_CH5 = 5U,        /*!< bit 5    PORTA_PIN13 or PORTB_PIN1 */
	PWM_GROUP3_CH6 = 6U,        /*!< bit 6    PORTA_PIN14 or PORTB_PIN2 */
	PWM_GROUP3_CH7 = 7U,        /*!< bit 7    PORTA_PIN15 or PORTB_PIN3 */
	PWM_CH_NUM = 8U,
	PWM_CH_NULL = PWM_CH_NUM,
} PWM_CH_ID;

/**
 * @brief The register for PWM.
 */
typedef struct {
	__IO uint32_t PCR;          /*!< PWM Control Register, Address offset: 0x60+0x0+N*0X20(N=0~7) */
	__IO uint32_t PPR;          /*!< PWM Period Register, Address offset: 0x60+0x4+N*0X20(N=0~7) */
	__I  uint32_t PCNTR;        /*!< PWM Count Register, Address offset: 0x60+0x8+N*0X20(N=0~7) */
	__IO uint32_t CCR;          /*!< Capture Control Register, Address offset: 0x60+0xC+N*0X20(N=0~7) */
	__IO uint32_t CRLR;         /*!< Capture Rise Lock Register, Address offset: 0x60+0x10+N*0X20(N=0~7) */
	__IO uint32_t CFLR;         /*!< Capture Fall Lock Register, Address offset: 0x60+0x14+N*0X20(N=0~7) */
	 uint32_t RESERVED0[2];
} PWM_CHANNEL_REG;

/**
 * @brief The register for PWM.
 */
typedef struct {
	__IO uint32_t PIER;                 /*!< PWM IRQ Enable Register,                        Address offset: 0x00 */
	__IO uint32_t PISR;                 /*!< PWM IRQ Status Register,                        Address offset: 0x04 */
	     uint32_t RESERVED0[2];         /*!< NULL*/
	__IO uint32_t CIER;                 /*!< Capture IRQ Enable Register,                    Address offset: 0x10 */
	__IO uint32_t CISR;                 /*!< Capture IRQ Status Register,                    Address offset: 0x14 */
	     uint32_t RESERVED1[2];         /*!< NULL*/
	__IO uint32_t PCCR[4];              /*!< PWM01 Clock Configuration Register                Address offset: 0x20 */
	__IO uint32_t PDZCR[4];             /*!< PWM01 Dead Zone Control Register,                Address offset: 0x30 */
	__IO uint32_t PER;                  /*!< PWM Enable Register,                            Address offset: 0x40 */
	__IO uint32_t CER;                  /*!< PWM Capture Enable Register,                    Address offset: 0x44 */
	     uint32_t RESERVED2[6];
	PWM_CHANNEL_REG CH_REG[PWM_CH_NUM];

} PWM_T;

#define PWM    ((PWM_T *)PWM_BASE)

/**
 * @brief The clock division for PWM group.
 */
typedef enum {
	PWM_SRC_CLK_DIV_1   =    0U,     /*!< Src Clk Frequency division 1 */
	PWM_SRC_CLK_DIV_2   =    1U,     /*!< Src Clk Frequency division 2 */
	PWM_SRC_CLK_DIV_4   =    2U,     /*!< Src Clk Frequency division 4 */
	PWM_SRC_CLK_DIV_8   =    3U,     /*!< Src Clk Frequency division 8 */
	PWM_SRC_CLK_DIV_16  =    4U,     /*!< Src Clk Frequency division 16 */
	PWM_SRC_CLK_DIV_32  =    5U,     /*!< Src Clk Frequency division 32 */
	PWM_SRC_CLK_DIV_64  =    6U,     /*!< Src Clk Frequency division 64 */
	PWM_SRC_CLK_DIV_128 =    7U,     /*!< Src Clk Frequency division 128 */
	PWM_SRC_CLK_DIV_256 =    8U,     /*!< Src Clk Frequency division 256 */
} PWM_SrcClkDiv;

#define PWM_SRC_CLK_DIV_V       ((uint32_t)0x0000000F)
#define PWM_CH_CLK_GATING       HAL_BIT(4)
#define PWM_LOW_CH_CLKBYPASS    HAL_BIT(5)
#define PWM_HIGH_CH_CLKBYPASS   HAL_BIT(6)
#define PWM_SRC_CLK_SELECT      ((uint32_t)0x00000180) /* bit8 ignore, 01:APB1 00:24M */

/*  Bit definition for PWMxx(G01,G23,G45,G67) Dead Zone Control register  **************/

#define PWM_CH_DZ_EN            HAL_BIT(0)
#define PWM_CH_DZ_INV           ((uint32_t)0x0000FF00)    /* PWM Dead Zone interval value */

/********************  Bit definition for PWM  Control register  **********************/

#define PWM_PCR_PRESCAL         ((uint32_t)0x000000FF)
#define PWM_PCR_ACT_STA         HAL_BIT(8)
#define PWM_PCR_MODE            HAL_BIT(9)
#define PWM_PCR_PLUSE_START     HAL_BIT(10)
#define PWM_PCR_PERIODRDY       HAL_BIT(11)

/***************  Bit definition for PWM  Period register  ****************************/

#define PWM_PPR_ACT_CYCLE       ((uint32_t)0x0000FFFF)
#define PWM_PPR_ENTIER_CYCLE    ((uint32_t)0xFFFF0000)

/***************  Bit definition for PWM  Counter register  ***************************/

#define PWM_TIME_COUNTER     ((uint32_t)0x0000FFFF)

/***************  Bit definition for Capture  Control register  ***********************/

#define PWM_CCR_CAPINV      HAL_BIT(0)
#define PWM_CCR_CFLF        HAL_BIT(1)
#define PWM_CCR_CRLF        HAL_BIT(2)

/***************  Bit definition for Capture  Rise Lock register  *********************/

#define PWM_CRLR        ((uint32_t)0x0000FFFF)

/***************  Bit definition for Capture Fall Lock register  **********************/

#define PWM_CFLR        ((uint32_t)0x0000FFFF)

/***************  Bit definition for PWM Enable register  *****************************/

/**
 * @brief The sorce clock for PWM group.
 */
typedef enum {
	PWM_CLK_HOSC,
	PWM_CLK_APB1,
} PWM_GroupSrcClk;

/**
 * @brief The run mode for PWM channel.
 */
typedef enum {
	PWM_CYCLE_MODE,     /*!< The ouput signal is cycle */
	PWM_PLUSE_MODE,     /*!< Run in this mode, caller HAL_PWM_PluseStart(PWM_CH_ID ch_id) produce one pluse */
	PWM_CAPTURE_MODE,   /*!< Capture the input signal */
} PWM_Mode;

/**
 * @brief The Polarity for PWM channel.
 */
typedef enum {
	PWM_LOWLEVE,
	PWM_HIGHLEVE,
} PWM_Polarity;

/**
 * @brief The PWM interrupt event.
 */
typedef enum {
	PWM_IRQ_OUTPUT,
	PWM_IRQ_RISEEDGE,
	PWM_IRQ_FALLEDGE,
	PWM_IRQ_BOTHEDGE,
	PWM_IRQ_NULL,
} PWM_IrqEvent;

/**
 * @brief The PWM interrupt callback.
 * @param arg: The param for callback.
 * @param event: The interrupt event.
 */
typedef void (*PWM_IrqCallback) (void *arg,  PWM_IrqEvent event);

/**
 * @brief Config PWM interrupt.
 */
typedef struct {
	PWM_IrqEvent event;             /*!< The interrupt event */
	PWM_IrqCallback    callback;    /*!< The interrupt callback */
	void *arg;                      /*!< The callback  param */
} PWM_IrqParam;

/**
 * @brief Config PWM group clock.
 */
typedef struct {
	PWM_GroupSrcClk clk;        /*!< The source clock for PWM group */
	PWM_SrcClkDiv div;          /*!< The division for clock */
} PWM_ClkParam;

/**
 * @brief Config PWM channel.
 */
typedef struct {
	PWM_Mode mode;              /*!< The channel's run mode */
	PWM_Polarity polarity;      /*!< The channel's polarity */
	uint32_t hz;                /*!< The channel's output requncy ; run in capture mode , it's intput signal's requency */
} PWM_ChInitParam;

/**
 * @brief Config PWM Complementary.
 */
typedef struct {
	PWM_Polarity polarity;      /*!< The channel's polarity, used for number of small channels, another
	                              channel's polarity is opposite */
	uint32_t hz;                /*!< The channel's output equncy */
} PWM_CompInitParam;

/**
 * @brief Save capture result.
 */
typedef struct {
	uint32_t highLevelTime;
	uint32_t lowLevelTime;
	uint32_t periodTime;
} PWM_CapResult;

/**
 * @brief Capture mode.
 */
typedef enum {
	PWM_CAP_PLUSE,      /*!< Used for capture pluse */
	PWM_CAP_CYCLE,      /*!< Used for capture continuous signal */
} PWM_CaptureMode;

/**
 * @brief Configure the pwm group source clock.
 * @note This function is used to configure the group source clock ,
 *           each group contains two channels.
 *           For example : The group_0's clock is effect channel0 and channel 1.
 * @param group_id: The pwm group id.
 * @param param:
 *        @arg param->clk:The source clk of this group.
 *        @arg param->div:The division for source clk.
 * @retval HAL_Status:  The status of driver
 */
HAL_Status HAL_PWM_GroupClkCfg(PWM_GROUP_ID group_id, PWM_ClkParam *param);

/**
 * @brief Init the pwm channel.
 * @note This function is used to configure the channel pin(IO mode), output frequency ,
 *           polarity and rum mode.
 * @param ch_id: The pwm channel id.
 * @param param:
 *        @arg param->mode:The channels run mode.
 *        @arg param->polarity:The channels polarity.
 *        @arg param->hz:The channels output frequency.
 * @retval max_duty_ratio:  The channel max duty cycle value. if the mode is
 *        capture, the return value is 0. error return -1;
 */
int HAL_PWM_ChInit(PWM_CH_ID ch_id, PWM_ChInitParam *param);

/**
 * @brief Deinit the pwm channel.
 * @note This function is used to deinit the channel pin, reduce power consumption.
 * @param ch_id: The pwm channel id.
 * @retval HAL_Status:  The status of driver.
 */
HAL_Status HAL_PWM_ChDeinit(PWM_CH_ID ch_id);

/**
 * @brief Init the complementary mode.
 * @note This function is used to configure the groups pin(IO mode), output frequency ,
 *           polarity.
 *           This mode is two channel output complementart waveform, the channel run in
 *           cycle mode.
 * @param group_id: The pwm group id.
 * @param param:
 *        @arg param->polarity:The channels polarity.
 *        @arg param->hz:The channels output frequency.
 * @retval HAL_Status:  The channel max duty cycle value.
 */
int HAL_PWM_ComplementaryInit(PWM_GROUP_ID group_id, PWM_CompInitParam *param);

/**
 * @brief Deinit the pwm complementary.
 * @note This function is used to deinit the groupl pin, reduce power consumption.
 * @param group_id: The pwm group id.
 * @retval HAL_Status:  The status of driver.
 */
HAL_Status HAL_PWM_ComplementaryDeInit(PWM_GROUP_ID group_id);

/**
 * @brief Enable the pwm channel.
 * @param ch_id: The pwm channel id.
 * @param mode: The pwm channel run mode.
 * @param en: set 1 enable , 0 disable.
 * @retval HAL_Status:  The status of driver.
 */
HAL_Status HAL_PWM_EnableCh(PWM_CH_ID ch_id, PWM_Mode mode, uint8_t en);

/**
 * @brief Output one pluse.Use this function you need already enable the channel.
 * @param ch_id: The pwm channel id.
 * @retval HAL_Status:  The status of driver.
 */
HAL_Status HAL_PWM_OutputPluse(PWM_CH_ID ch_id);

/**
 * @brief Enable the complementary.
 * @param group_id: The pwm group id.
 * @param en: set 1 enable , 0 disable.
 * @retval HAL_Status:  The status of driver.
 */
HAL_Status HAL_PWM_EnableComplementary(PWM_GROUP_ID group_id, uint8_t en);

/**
 * @brief Enable the pwm channel's interrupt.
 * @param ch_id: The pwm channel id.
 * @param param:
 *        @arg param->event:The interrupt event.
 *        @arg param->callback:The interrupt callback.
 *        @arg param->arg: The param for callback.
 * @retval HAL_Status:   The status of driver.
 */
HAL_Status HAL_PWM_EnableIRQ(PWM_CH_ID ch_id, const PWM_IrqParam *param);

/**
 * @brief Disable the pwm channel's interrupt.
 * @param ch_id: The pwm channel id.
 * @retval HAL_Status:   The status of driver.
 */
void HAL_PWM_DisableIRQ(PWM_CH_ID ch_id);

/**
 * @brief Set channel's duty ratio.
 * @param ch_id: The pwm channel id.
 * @param value: The duty ratio value.
 * @retval HAL_Status:   The status of driver.
 */
HAL_Status HAL_PWM_ChSetDutyRatio(PWM_CH_ID ch_id, uint16_t value);

/**
 * @brief Set Complementary duty ratio.
 * @param group_id: The pwm group id.
 * @param value: The duty ratio value.
 * @retval HAL_Status:   The status of driver.
 */
HAL_Status HAL_PWM_ComplementarySetDutyRatio(PWM_GROUP_ID group_id, uint16_t value);

/**
 * @brief Set dead zone for complementary mode.
 * @param group_id: The pwm group id.
 * @param value: The dead zone value.
 * @retval HAL_Status:   The status of driver.
 */
HAL_Status HAL_PWM_SetDeadZoneTime(PWM_GROUP_ID group_id, uint8_t dead_zone_value);

/**
 * @brief Enable the dead zone.
 * @param group_id: The pwm group id.
 * @param en: set 1 enable, 0 disable.
 * @retval HAL_Status:   The status of driver.
 */
HAL_Status HAL_PWM_EnableDeadZone(PWM_GROUP_ID group_id, uint8_t en);

/**
 * @brief The pwm channel capture result.
 * @param mode:
 *        @arg PWM_CAP_PLUSE: used for capture pluse. Run in the mode,
 *                only the highLevlTime is valid.
 *        @arg PWM_CAP_CYCLE: used for cycle signal. capture the signal's period,
 *                high level time and low level time.
 * @param ch_id: The pwm channel id.
 * @retval PWM_CapResult:   The result of capture.
 */
PWM_CapResult HAL_PWM_CaptureResult(PWM_CaptureMode mode, PWM_CH_ID ch_id);


#ifdef __cplusplus
}
#endif

#endif /* _DRIVER_CHIP_HAL_PWM_H_ */