NIM_DSP6748/code/hlx/tr_usb0_host_driver.c

/*
 * tr_usb0_driver.c
 *
 *  Created on: 2025年7月25日
 *      Author: Administrator
 */
#include <stdio.h>
#include "soc_C6748.h"              // DSP C6748 外设寄存器


#include "hw_types.h"               // 宏命令

#include "psc.h"                    // 电源与睡眠控制宏及设备抽象层函数声明

#include "interrupt.h"              // DSP C6748 中断相关应用程序接口函数声明及系统事件号定义

#include "delay.h"

#include "usblib.h"
#include "usbhost.h"
#include "usbhid.h"
#include "cppi41dma.h"
#include "usbhspecific.h"
#include "tr_timer.h"

static void USBInterruptInit(void);
unsigned int KeyboardCallback(void *pvCBData, unsigned int ulEvent,
                 unsigned int ulMsgParam, void *pvMsgData);


#define USB_INSTANCE    0
#define HCD_MEMORY_SIZE         128

#define KEYBOARD_MEMORY_SIZE       128

// DMA 端点数目
#define NUMBER_OF_ENDPOINTS    4
// 尝试次数
#define USBMSC_DRIVE_RETRY     4

unsigned char g_pHCDPool[HCD_MEMORY_SIZE];

unsigned char g_pucBuffer[KEYBOARD_MEMORY_SIZE];

// 默认超时时间
tUSBHTimeOut *USBHTimeOut         = NULL;

endpointInfo epInfo[]=
{
    {
        USB_EP_TO_INDEX(USB_EP_1),
        CPDMA_DIR_RX,
        CPDMA_MODE_SET_TRANSPARENT,
    },

    {
        USB_EP_TO_INDEX(USB_EP_1),
        CPDMA_DIR_TX,
        CPDMA_MODE_SET_GRNDIS,
    },

    {
        USB_EP_TO_INDEX(USB_EP_2),
        CPDMA_DIR_RX,
        CPDMA_MODE_SET_TRANSPARENT,
    },

    {
        USB_EP_TO_INDEX(USB_EP_2),
        CPDMA_DIR_TX,
        CPDMA_MODE_SET_GRNDIS,
    }

};

enum
{
    STATE_NO_DEVICE,
    STATE_KEYBOARD_INIT,
    STATE_KEYBOARD_CONNECTED,
    STATE_KEYBOARD_UPDATE,
    STATE_UNKNOWN_DEVICE,
    STATE_POWER_FAULT
}
g_eUSBState;

DECLARE_EVENT_DRIVER(g_sUSBEventDriver, 0, 0, USBHCDEvents);

static tUSBHostClassDriver const * const g_ppHostClassDrivers[] =
{
    &g_USBSPECIFICClassDriver
    ,&g_sUSBEventDriver
};

static const unsigned int g_ulNumHostClassDrivers =
    sizeof(g_ppHostClassDrivers) / sizeof(tUSBHostClassDriver *);


// USB 设备实例
static unsigned int g_ulDeviceInstance;

void Usb0HostInit(void)
{
    // 使能 USB 模块
    // 对相应外设模块的使能也可以在 BootLoader 中完成
    PSCModuleControl(SOC_PSC_1_REGS,HW_PSC_USB0, PSC_POWERDOMAIN_ALWAYS_ON, PSC_MDCTL_NEXT_ENABLE);
    // 使能 USB PHY
    // 详情参阅 TMS320C6748 DSP Technical Reference Manual
    // 273-274页 Chip Configuration 2 Register (CFGCHIP2) Field Descriptions
    // 强制作为主设备（HOST）
    HWREG(SOC_USB_0_PHY_REGS) = 0x29F2;

    USBInterruptInit();
    DelayTimerSetup();

    // 注册主机类驱动程序
    USBHCDRegisterDrivers(0, g_ppHostClassDrivers, g_ulNumHostClassDrivers);

    // 初始化电源配置
    USBHCDPowerConfigInit(0, USBHCD_VBUS_AUTO_HIGH);

    // 初始化 HOST 控制器
    USBHCDInit(USB_INSTANCE, g_pHCDPool, HCD_MEMORY_SIZE);

    //调用主机控制驱动主循环
    USBHCDMain (USB_INSTANCE, g_ulDeviceInstance);
}

unsigned char DataBuffer[64] = {31, 32, 33, 34, 35};
void Usb0HostMain(void)
{
    // 调用主机控制驱动主循环
    USBHCDMain (USB_INSTANCE, g_ulDeviceInstance);

    // 每1ms请求一次usb数据
    static struct TimerStruct timer = {0, 0};
    if(GetPassedTime(&timer) >= 1){
        ClearTimer(&timer);
        if(g_SPECIFICInstance.isConnected)
        {
            unsigned int size = USBHCDPipeSchedule(0, g_SPECIFICInstance.ulBulkInPipe, DataBuffer, 64);
        }
    }
}


static void USBInterruptInit(void)
{
    IntRegister(C674X_MASK_INT9, USB0HostIntHandler);
    IntEventMap(C674X_MASK_INT9, SYS_INT_USB0);
    IntEnable(C674X_MASK_INT9);
}

/****************************************************************************/
/*                                                                          */
/*              USB HOST 返回函数                                           */
/*                                                                          */
/****************************************************************************/
void USBHCDEvents(void *pvData)
{
    tEventInfo *pEventInfo;

    pEventInfo = (tEventInfo *)pvData;
    printf("USBHCDEvents......\r\n");

    switch(pEventInfo->ulEvent)
    {
        case USB_EVENT_CONNECTED:
        {
            g_eUSBState = STATE_UNKNOWN_DEVICE;
            printf("connect......\r\n");


            break;
        }

        case USB_EVENT_DISCONNECTED:
        {
            g_eUSBState = STATE_NO_DEVICE;
            printf("disconnect......\r\n");


            break;
        }
        case USB_EVENT_POWER_FAULT:
        {
            g_eUSBState = STATE_POWER_FAULT;
            printf("error......\r\n");


            break;
        }

        default:
        {
            break;
        }
    }
}