101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
#ifndef _TIME_PWM_H
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#define _TIME_PWM_H
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#include "includes.h"
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#include "device/device.h"
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#define PWM_MAX_NUM 8 //0-7，最多,8个通道
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/***PWMCHx***/
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#define PWMCH0_H BIT(0)
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#define PWMCH1_H BIT(1)
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#define PWMCH2_H BIT(2)
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#define PWMCH3_H BIT(3)
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#define PWMCH4_H BIT(4)
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#define PWMCH5_H BIT(5)
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#define PWMCH6_H BIT(6)
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#define PWMCH7_H BIT(7)
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#define PWM_CHL_OFFSET 10
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#define PWMCH0_L BIT(PWM_CHL_OFFSET + 0)
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#define PWMCH1_L BIT(PWM_CHL_OFFSET + 1)
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#define PWMCH2_L BIT(PWM_CHL_OFFSET + 2)
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#define PWMCH3_L BIT(PWM_CHL_OFFSET + 3)
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#define PWMCH4_L BIT(PWM_CHL_OFFSET + 4)
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#define PWMCH5_L BIT(PWM_CHL_OFFSET + 5)
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#define PWMCH6_L BIT(PWM_CHL_OFFSET + 6)
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#define PWMCH7_L BIT(PWM_CHL_OFFSET + 7)
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#define TIME_PWM_MAX 2
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#define TIME_PWM_OFFSET 20
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#define PWM_TIMER2_OPCH2 BIT(TIME_PWM_OFFSET + 0)
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#define PWM_TIMER3_OPCH3 BIT(TIME_PWM_OFFSET + 1)
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/***ioctrl cmd***/
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#define PWM_STOP _IOW('P',0,u32)
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#define PWM_RUN _IOW('P',1,u32)
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#define PWM_FORDIRC _IOW('P',2,u32) //正向
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#define PWM_REVDIRC _IOW('P',3,u32) //反向
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#define PWM_ADD_CHANNEL _IOW('P',4,u32)
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#define PWM_SET_DEATH_TIME _IOW('P',5,u32)//死区时间为系统频率周期时间的整数倍，最大值31
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#define PWM_SET_FREQ _IOW('P',6,u32)
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#define PWM_SET_DUTY _IOW('P',7,u32)
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#define PWM_GET_DUTY _IOR('P',7,u32)
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#define PWM_REMOV_CHANNEL _IOW('P',8,u32)
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typedef struct pwm_timer {
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u32 con;
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u32 cnt;
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u32 prd;
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} PWM_TIMER;
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typedef struct pwm_chcon {
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u32 con0;
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u32 con1;
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u32 cmph;
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u32 cmpl;
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} PWM_CHCON;
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struct pwm_platform_data {
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PWM_TIMER *treg;
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PWM_CHCON *creg;
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float duty;//用于带2位小数点占空比的PWM，0.00%-100.00%
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u8 deathtime;//最大值31
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u8 point_bit;//小数点精度:0-2
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u32 port;
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u32 pwm_ch;
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u32 freq;
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};
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struct pwm_operations {
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int (*init)(void);
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int (*open)(struct pwm_platform_data *pwm_data);
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int (*close)(struct pwm_platform_data *pwm_data);
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int (*write)(struct pwm_platform_data *pwm_data);
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int (*read)(struct pwm_platform_data *pwm_data);
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int (*ioctl)(struct pwm_platform_data *pwm_data, u32 cmd, u32 arg);
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};
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struct pwm_device {
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const char *name;
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const struct pwm_operations *ops;
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struct device dev;
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void *priv;
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};
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#define PWM_PLATFORM_DATA_BEGIN(data) \
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static const struct pwm_platform_data data={
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#define PWM_PLATFORM_DATA_END() \
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.treg=NULL, \
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.creg=NULL, \
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};
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extern const struct device_operations pwm_dev_ops;
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#endif
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