test-example-projects/qt_projects/rt-thread-master/bsp/loongson/ls1cdev/libraries/ls1c_pwm.h

/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2017-09-06     <EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>       first version
 */


#ifndef __OPENLOONGSON_PWM_H
#define __OPENLOONGSON_PWM_H


// pwm<EFBFBD><EFBFBD><EFBFBD>Ŷ<EFBFBD><EFBFBD><EFBFBD>
#define LS1C_PWM0_GPIO06                    (6)         // gpio06<EFBFBD><EFBFBD><EFBFBD><EFBFBD>pwm0
#define LS1C_PWM0_GPIO04                    (4)         // gpio04<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm0
#define LS1C_PWM1_GPIO92                    (92)        // gpio92<EFBFBD><EFBFBD><EFBFBD><EFBFBD>pwm1
#define LS1C_PWM1_GPIO05                    (5)         // gpio05<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm1
#define LS1C_PWM2_GPIO52                    (52)        // gpio52<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm2
#define LS1C_PWM2_GPIO46                    (46)        // gpio46<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm2
#define LS1C_PWM3_GPIO47                    (47)        // gpio47<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm3
#define LS1C_PWM3_GPIO53                    (53)        // gpio53<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊpwm3
// ...<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩgpio<EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD><EFBFBD><EFBFBD>Ϊgpio<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>



// pwm<EFBFBD><EFBFBD><EFBFBD>ƼĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD>bit
#define LS1C_PWM_INT_LRC_EN                 (11)        // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ʹ<EFBFBD><EFBFBD>
#define LS1C_PWM_INT_HRC_EN                 (10)        // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ʹ<EFBFBD><EFBFBD>
#define LS1C_PWM_CNTR_RST                   (7)         // ʹ<EFBFBD><EFBFBD>CNTR<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#define LS1C_PWM_INT_SR                     (6)         // <EFBFBD>ж<EFBFBD>״̬λ
#define LS1C_PWM_INTEN                      (5)         // <EFBFBD>ж<EFBFBD>ʹ<EFBFBD><EFBFBD>λ
#define LS1C_PWM_SINGLE                     (4)         // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ
#define LS1C_PWM_OE                         (3)         // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>
#define LS1C_PWM_CNT_EN                     (0)         // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>


// Ӳ<EFBFBD><EFBFBD>pwm<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
enum
{
    // <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ--<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pwm<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    PWM_MODE_NORMAL = 0,
    
    // <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD>ÿ<EFBFBD>ε<EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pwm<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    PWM_MODE_PULSE
};


// Ӳ<EFBFBD><EFBFBD>pwm<EFBFBD><EFBFBD>Ϣ
typedef struct
{
    unsigned int gpio;                      // PWMn<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>gpio
    unsigned int mode;                      // <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ(<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
    float duty;                             // pwm<EFBFBD><EFBFBD>ռ<EFBFBD>ձ<EFBFBD>
    unsigned long period_ns;                // pwm<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD>λns)
}pwm_info_t;




/*
 * <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>PWMn
 * @pwm_info PWMn<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD>Ϣ
 */
void pwm_init(pwm_info_t *pwm_info);


/*
 * <EFBFBD><EFBFBD>ֹpwm
 * @pwm_info PWMn<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD>Ϣ
 */
void pwm_disable(pwm_info_t *pwm_info);



/*
 * ʹ<EFBFBD><EFBFBD>PWM
 * @pwm_info PWMn<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD>Ϣ
 */
void pwm_enable(pwm_info_t *pwm_info);


#endif