AT91RM9200-BasicUSBPipe-ARM1_2-2_0.rar_at91rm9200_at91rm9200 usb

//*---------------------------------------------------------------------------- //* ATMEL Microcontroller Software Support - ROUSSET - //*---------------------------------------------------------------------------- //* The software is delivered "AS IS" without warranty or condition of any //* kind, either express, implied or statutory. This includes without //* limitation any warranty or condition with respect to merchantability or //* fitness for any particular purpose, or against the infringements of //* intellectual property rights of others. //*---------------------------------------------------------------------------- //* File Name : descriptor.c //* Object : USB monitor aplication. //* //* 1.0 Jul 31 2002 : ODi Creation //*---------------------------------------------------------------------------- #include "AT91_SVC_USBCTL.h" #include "lib_AT91RM9200.h" #include "AT91_SVC_USBIN.h" AT91S_SVC_USBIN usbEp3; /* ================================================================ */ /* ===================== Device configuration ===================== */ /* ================================================================ */ // This is the current configuration. unsigned char currentConfiguration = 0; unsigned char currentConnection = 0; const char deviceDescriptor[] = { /* Device descriptor */ 0x12, // bLength 0x01, // bDescriptorType 0x10, // bcdUSBL 0x01, // 0x02, // bDeviceClass: CDC class code 0x00, // bDeviceSubclass: CDC class sub code 0x00, // bDeviceProtocol: CDC Device protocol 0x08, // bMaxPacketSize0 0xEB, // idVendorL 0x03, // 0x22, // idProductL 0x61, // 0x10, // bcdDeviceL 0x01, // 0x00, // iManufacturer // 0x01 0x00, // iProduct 0x00, // SerialNumber 0x01 // bNumConfigs }; const char configurationDescriptor[] = { /* ============== CONFIGURATION 1 =========== */ /* Configuration 1 descriptor */ 0x09, // CbLength 0x02, // CbDescriptorType 0x20, // CwTotalLength 2 EP + Control 0x00, 0x01, // CbNumInterfaces 0x01, // CbConfigurationValue 0x00, // CiConfiguration 0xC0, // CbmAttributes 0xA0 0x00, // CMaxPower /* Data Class Interface Descriptor Requirement */ 0x09, // bLength 0x04, // bDescriptorType 0x00, // bInterfaceNumber 0x00, // bAlternateSetting 0x02, // bNumEndpoints 0x00, // bInterfaceClass 0x00, // bInterfaceSubclass 0x00, // bInterfaceProtocol 0x00, // iInterface /* First alternate setting */ /* Endpoint 1 descriptor */ 0x07, // bLength 0x05, // bDescriptorType 0x01, // bEndpointAddress, Endpoint 01 - OUT 0x02, // bmAttributes BULK 0x40, // wMaxPacketSize 0x00, 0x00, // bInterval /* Endpoint 2 descriptor */ 0x07, // bLength 0x05, // bDescriptorType 0x82, // bEndpointAddress, Endpoint 02 - IN 0x02, // bmAttributes BULK 0x40, // wMaxPacketSize 0x00, 0x00 // bInterval }; /* USB standard request code */ #define STD_GET_STATUS_ZERO 0x0080 #define STD_GET_STATUS_INTERFACE 0x0081 #define STD_GET_STATUS_ENDPOINT 0x0082 #define STD_CLEAR_FEATURE_ZERO 0x0100 #define STD_CLEAR_FEATURE_INTERFACE 0x0101 #define STD_CLEAR_FEATURE_ENDPOINT 0x0102 #define STD_SET_FEATURE_ZERO 0x0300 #define STD_SET_FEATURE_INTERFACE 0x0301 #define STD_SET_FEATURE_ENDPOINT 0x0302 #define STD_SET_ADDRESS 0x0500 #define STD_GET_DESCRIPTOR 0x0680 #define STD_SET_DESCRIPTOR 0x0700 #define STD_GET_CONFIGURATION 0x0880 #define STD_SET_CONFIGURATION 0x0900 #define STD_GET_INTERFACE 0x0A81 #define STD_SET_INTERFACE 0x0B01 #define STD_SYNCH_FRAME 0x0C82 /* CDC Class Specific Request Code */ #define GET_LINE_CODING 0x21A1 #define SET_LINE_CODING 0x2021 #define SET_CONTROL_LINE_STATE 0x2221 //*---------------------------------------------------------------------------- //* \fn AT91F_USB_GetDescriptorDevice //* \brief Answer to a standard GET DESCRIPTOR request //*---------------------------------------------------------------------------- #define MIN(a, b) (((a) < (b)) ? (a) : (b)) __inline void AT91F_USB_GetDescriptorDevice( AT91PS_SVC_USBCTL pUSBCTL) { unsigned short wLength = *((unsigned short *) &(pUSBCTL->pSetup[6])); pUSBCTL->Write(pUSBCTL, deviceDescriptor, MIN(sizeof(deviceDescriptor), wLength), (AT91PF_SVC_USBCTL_RWComplete) 0); // No callback } //*---------------------------------------------------------------------------- //* \fn AT91F_USB_GetDescriptorConfiguration //* \brief Answer to a standard GET DESCRIPTOR request //*---------------------------------------------------------------------------- __inline void AT91F_USB_GetDescriptorConfiguration( AT91PS_SVC_USBCTL pUSBCTL) { unsigned short wLength = *((unsigned short *) &(pUSBCTL->pSetup[6])); pUSBCTL->Write(pUSBCTL, configurationDescriptor, MIN(sizeof(configurationDescriptor), wLength), (AT91PF_SVC_USBCTL_RWComplete) 0); // No callback } //*---------------------------------------------------------------------------- //* \fn AT91F_USB_SetAddress //* \brief Answer to a standard SET ADDRESS request //*---------------------------------------------------------------------------- void AT91F_USB_SetAddressComplete( AT91PS_SVC_USBCTL pUSBCTL) { unsigned char address = pUSBCTL->pSetup[2]; // Set Address AT91F_UDP_SetAddress(pUSBCTL->pUdp, address); if (address) // Move the UDP function to the addressed state AT91F_UDP_SetState(pUSBCTL->pUdp, AT91C_UDP_FADDEN); else // Move the UDP function to the default state AT91F_UDP_SetState(pUSBCTL->pUdp, 0); } __inline void AT91F_USB_SetAddress( AT91PS_SVC_USBCTL pUSBCTL) { // UDP address change must be done once STATUS IN is achieved pUSBCTL->Write(pUSBCTL, (char *) 0, 0, AT91F_USB_SetAddressComplete); } //*---------------------------------------------------------------------------- //* \fn AT91F_USB_SetConfiguration //* \brief Answer to a standard SET CONFIGURATION request //*---------------------------------------------------------------------------- void AT91F_USB_SetConfigurationComplete( AT91PS_SVC_USBCTL pUSBCTL) { AT91PS_UDP pUdp = pUSBCTL->pUdp; // Pointer to UDP registers // Move the UDP function to the configured state AT91F_UDP_SetState(pUdp, AT91C_UDP_CONFG); // Enable endpoints AT91F_UDP_EpSet(pUdp, 1, AT91C_UDP_EPEDS); AT91F_UDP_EpSet(pUdp, 2, AT91C_UDP_EPEDS); AT91F_UDP_EpSet(pUdp, 3, AT91C_UDP_EPEDS); // Enable endpoint 1 & 2 interrupts AT91F_SVC_USBIN_Open(&usbEp3, AT91C_BASE_UDP, 3, 8, 1); // AT91F_UDP_EnableIt(pUdp, (AT91C_UDP_EPINT1 | AT91C_UDP_EPINT2 | AT91C_UDP_EPINT3)); } __inline void AT91F_USB_SetConfiguration( AT91PS_SVC_USBCTL pUSBCTL) { AT91PS_UDP pUdp = pUSBCTL->pUdp; // Pointer to UDP registers AT91PF_SVC_USBCTL_RWComplete RWComplete = (AT91PF_SVC_USBCTL_RWComplete) 0; // Callback // Store the current configuration currentConfiguration = pUSBCTL->pSetup[2]; // Move to the Configured State if (currentConfiguration) { // Reset endpoints AT91F_UDP_ResetEp(pUdp, (AT91C_UDP_EPINT1 | AT91C_UDP_EPINT2 | AT91C_UDP_EPINT3)); AT91F_UDP_ResetEp(pUdp, 0); //AT91F_UDP_EnableEp(pUdp, (AT91C_UDP_EPINT1 | AT91C_UDP_EPINT2)); // Configure endpoints and enable them AT91F_UDP_EpSet(pUdp, 1, (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT)); // Endpoint 1 is a bulk out AT91F_UDP_EpSet(pUdp, 2, (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN)); // Endpoint 2 is a bulk in AT91F_UDP_EpSet(pUdp, 3, (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_ISO_IN)); // Endpoint 3 is a INT in // Init the Callback after STATUS IN RWComplete = AT91F_USB_SetConfigurationComplete; } // Move back to the A