USBHost.rar_K60 USB host

#include "USBHost.h" #include "common.h" #include "SCSI.h" #include "USBMST.h" //#define DEBUG #define K60_USB_FRM_NUM (USB0_ISTAT = USB_ISTAT_SOFTOK_MASK , USB0_FRMNUML | (((uint16)USB0_FRMNUMH)<<8)) std_error_t std_error; tr_error_t tr_error; extern uint8 USBFlag; extern MSTInfoStruct mst_info; static uint8 dbuffer[DBUFFER_SIZE]; DeviceConect my_device; uint8 tBDT_unaligned[1024]; tBDT * tBDTtable; // 16个端点的BDT uint8 *bdt; static EP_STRUCT endpoint_data[16]; struct { uint8 next_rx; uint8 next_tx; } ep_info; uint8 USBHostInit(void) { uint8 ep; uint16 i; tBDTtable = (tBDT *)((( uint32 ) tBDT_unaligned & 0xFFFFFE00UL) + 0x200UL); bdt = (uint8 *)tBDTtable; //1 清除设备所有端点 my_device.address = INVALID_ADDRESS; ep_info.next_tx = 0; ep_info.next_rx = 0; /* for(i = 0;i < 32;i++) { tBDTtable[i].Stat._byte = 0; tBDTtable[i].Cnt = 0; tBDTtable[i].Addr = 0; } */ for(i = 0;i < 512;i++) { bdt[i] = 0; } for(ep=0;ep<MAX_EP_PER_DEVICE;ep++) { my_device.eps[ep].address = INVALID_ADDRESS; my_device.eps[ep].last_due = 0; my_device.eps[ep].interval = 74; } /* MPU Configuration */ MPU_CESR=0; // MPU is disable. All accesses from all bus masters are allowed /* Configure USB to be clocked from PLL */ SIM_SOPT2 |= SIM_SOPT2_USBSRC_MASK | SIM_SOPT2_PLLFLLSEL_MASK; /* Configure USBFRAC = 0, USBDIV = 1 => frq(USBout) = 1 / 2 * frq(PLLin) */ //SIM_CLKDIV2 &= ~(SIM_CLKDIV2_USBFRAC_MASK | SIM_CLKDIV2_USBDIV_MASK); SIM_CLKDIV2 |= 0x02; /* Configure enable USB regulator for device */ //SIM_SOPT1_REG(SIM_BASE_PTR) |= SIM_SOPT1_USBREGEN_MASK; //_bsp_usb_io_init(); SIM_SCGC4 |= SIM_SCGC4_USBOTG_MASK; /*******************************************/ /* NVIC Configuration */ //extern uint32 __VECTOR_RAM[]; //Get vector table that was copied to RAM //__VECTOR_RAM[89]=(uint32)USBIsr; //replace ISR NVICICER2|=(1<<9); //Clear any pending interrupts on USB NVICISER2|=(1<<9); //Enable interrupts from USB module /*******************************************/ /* Reset USB peripheral */ USB0_USBTRC0 |= USB_USBTRC0_USBRESET_MASK; /* Wait while resetting */ while (USB0_USBTRC0 & USB_USBTRC0_USBRESET_MASK) {} /* reset USB CTRL register */ USB0_USBCTRL = 0; USB0_ISTAT = 0xFF; USB0_CTL |= USB_CTL_ODDRST_MASK; //memset(endpoint_data, 0, sizeof(endpoint_data)); USB0_BDTPAGE1 = (uint8)(((uint32)BDT_BASE) >> 8); USB0_BDTPAGE2 = (uint8)(((uint32)BDT_BASE) >> 16); USB0_BDTPAGE3 = (uint8)(((uint32)BDT_BASE) >> 24); USB0_SOFTHLD = 74; USB0_OTGCTL = USB_OTGCTL_DPLOW_MASK | USB_OTGCTL_DMLOW_MASK | USB_OTGCTL_OTGEN_MASK; /* Enable week pull-downs, usefull for detecting detach (effectivelly bus discharge) */ USB0_USBCTRL |= USB_USBCTRL_PDE_MASK;// Weak pulldowns are enabled on D+ and D-. /* Remove suspend state */ USB0_USBCTRL &= ~USB_USBCTRL_SUSP_MASK; USB0_INTEN = USB_INTEN_ATTACHEN_MASK /*| USB_INTEN_RESUMEEN_MASK | USB_INTEN_TOKDNEEN_MASK | USB_INTEN_SOFTOKEN_MASK | USB_INTEN_STALLEN_MASK | USB_INTEN_SLEEPEN_MASK | USB_INTEN_ERROREN_MASK | USB_INTEN_USBRSTEN_MASK */ ; //USB0_USBTRC0|=0x40; // Software must set this bit to 1b. USB0_CTL = USB_CTL_HOSTMODEEN_MASK //| USB_CTL_USBENSOFEN_MASK ; return 0; } //-------------------------------------------------------------------------* //函数名: USBHostScan * //功 能: 扫描总线是否有USB设备 * //参 数: 无 * //返 回: 0 无设备; 1 有设备 * //说 明: * //-------------------------------------------------------------------------* uint8 USBHostScan(void) { //1 防止非主机模式 if ((USB0_CTL & USB_CTL_HOSTMODEEN_MASK) == 0) { my_device.address = INVALID_ADDRESS; my_device.low_speed = 0; return(0); } //2 检测USB设备 if(USBCheckDeviceConnect()) { USBResetBus(); return(1); } return(0); } //-------------------------------------------------------------------------* //函数名: USBModifyEps * //功 能: 配置端点 * //参 数: ep: 端点号; type: 端点类型; address: 端点地址 interval:访问间隔; * // psize: 最大包长 * //返 回: 无 * //说 明: * //-------------------------------------------------------------------------* static void USBModifyEps(uint8 ep,uint8 type, uint8 address, uint8 interval, uint16 psize) { my_device.eps[ep].type = type; my_device.eps[ep].address = address; my_device.eps[ep].interval= interval; my_device.eps[ep].psize = psize; } //-------------------------------------------------------------------------* //函数名: USBResetBus * //功 能: USB复位 * //参 数: 无 * //返 回: * //说 明: 复位后重新检测USB设备的连接 * //-------------------------------------------------------------------------* static void USBResetBus(void) { uint8 ep=0; if(USBWaitTokenFinish() != tre_none) { tr_error = tre_not_running; return; } #ifdef DEBUG printf("Reset "); #endif //1 产生复位信号 USB0_CTL |= USB_CTL_RESET_MASK; //产生复位信号 Delay(30); //适当延时 USB0_CTL &= ~USB_CTL_RESET_MASK; //停止复位信号 USB0_ISTAT = USB_ISTAT_USBRST_MASK; //清除复位事件 //2 只有端点0工作,并设置为控制传输 if (my_device.address != INVALID_ADDRESS) my_device.address=0; USBModifyEps(0, EPTYPE_CTRL, 0, 0, MIN_EP0_PSIZE); for(ep=1;ep<MAX_EP_PER_DEVICE;ep++) my_device.eps[ep].address = INVALID_ADDRESS; //3 重新检测是否有USB设备 if (USBCheckDeviceConnect()) { #ifdef DEBUG printf("Connect! "); #endif USB0_CTL |= USB_CTL_USBENSOFEN_MASK; //使能SOF USB0_ISTAT = USB_ISTAT_SLEEP_MASK | USB_ISTAT_RESUME_MASK; //清除标志 Delay(100); // device may need max 10 mS reset recovery time //设置断点0(控制传输)的最大支持长度 if (!USBSetEp0psize()) //设置不成功则退出 { return; } #ifdef DEBUG printf("Got psize "); #endif //设置设备地址 if (!USBSetAddress(1)) { return; } my_device.address=1; #ifdef DEBUG printf("Setaddress OK "); #endif } else { #ifdef DEBUG printf("NOConnect "); #endif } } //-----------------------------------------