X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/05b6b117850e7d60a0fb0609550f3c029d98201c..72622d6429ebd62f6e416356aeda565956352aed:/common/usb_cdc.c diff --git a/common/usb_cdc.c b/common/usb_cdc.c deleted file mode 100644 index 91a63cf3..00000000 --- a/common/usb_cdc.c +++ /dev/null @@ -1,655 +0,0 @@ -/* - * at91sam7s USB CDC device implementation - * - * Copyright (c) 2012, Roel Verdult - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the copyright holders nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * based on the "Basic USB Example" from ATMEL (doc6123.pdf) - * - * @file usb_cdc.c - * @brief - */ - -#include "usb_cdc.h" -#include "at91sam7s512.h" -#include "config_gpio.h" - - -#define AT91C_EP_CONTROL 0 -#define AT91C_EP_OUT 1 -#define AT91C_EP_IN 2 -#define AT91C_EP_NOTIFY 3 -#define AT91C_EP_OUT_SIZE 0x40 -#define AT91C_EP_IN_SIZE 0x40 - -// Language must always be 0. -#define STR_LANGUAGE_CODES 0x00 -#define STR_MANUFACTURER 0x01 -#define STR_PRODUCT 0x02 - -static const char devDescriptor[] = { - /* Device descriptor */ - 0x12, // bLength - 0x01, // bDescriptorType - 0x00,0x02, // Complies with USB Spec. Release (0200h = release 2.0) - 0x02, // bDeviceClass: (Communication Device Class) - 0x00, // bDeviceSubclass: (unused at this time) - 0x00, // bDeviceProtocol: (unused at this time) - 0x08, // bMaxPacketSize0 - 0xc4,0x9a, // Vendor ID (0x9ac4 = J. Westhues) - 0x8f,0x4b, // Product ID (0x4b8f = Proxmark-3 RFID Instrument) - 0x01,0x00, // Device release number (0001) - STR_MANUFACTURER, // iManufacturer - STR_PRODUCT, // iProduct - 0x00, // iSerialNumber - 0x01 // bNumConfigs -}; - -static const char cfgDescriptor[] = { - /* ============== CONFIGURATION 1 =========== */ - /* Configuration 1 descriptor */ - 0x09, // CbLength - 0x02, // CbDescriptorType - 0x43, // CwTotalLength 2 EP + Control - 0x00, - 0x02, // CbNumInterfaces - 0x01, // CbConfigurationValue - 0x00, // CiConfiguration - 0xC0, // CbmAttributes 0xA0 - 0xFA, // CMaxPower - - /* Interface 0 Descriptor: Communication Class Interface */ - 0x09, // bLength - 0x04, // bDescriptorType - 0x00, // bInterfaceNumber - 0x00, // bAlternateSetting - 0x01, // bNumEndpoints - 0x02, // bInterfaceClass: Communication Interface Class - 0x02, // bInterfaceSubclass: Abstract Control Model - 0x01, // bInterfaceProtocol: Common AT Commands, V.25ter - 0x00, // iInterface - - /* Header Functional Descriptor */ - 0x05, // bFunction Length - 0x24, // bDescriptor type: CS_INTERFACE - 0x00, // bDescriptor subtype: Header Functional Descriptor - 0x10, // bcdCDC:1.1 - 0x01, - - /* ACM Functional Descriptor */ - 0x04, // bFunctionLength - 0x24, // bDescriptor Type: CS_INTERFACE - 0x02, // bDescriptor Subtype: Abstract Control Management Functional Descriptor - 0x02, // bmCapabilities: D1: Device supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State - - /* Union Functional Descriptor */ - 0x05, // bFunctionLength - 0x24, // bDescriptorType: CS_INTERFACE - 0x06, // bDescriptor Subtype: Union Functional Descriptor - 0x00, // bMasterInterface: Communication Class Interface - 0x01, // bSlaveInterface0: Data Class Interface - - /* Call Management Functional Descriptor */ - 0x05, // bFunctionLength - 0x24, // bDescriptor Type: CS_INTERFACE - 0x01, // bDescriptor Subtype: Call Management Functional Descriptor - 0x00, // bmCapabilities: Device sends/receives call management information only over the Communication Class interface. Device does not handle call management itself - 0x01, // bDataInterface: Data Class Interface 1 - - /* Endpoint 1 descriptor */ - 0x07, // bLength - 0x05, // bDescriptorType - 0x83, // bEndpointAddress: Endpoint 03 - IN - 0x03, // bmAttributes: INT - 0x08, // wMaxPacketSize: 8 - 0x00, - 0xFF, // bInterval - - /* Interface 1 Descriptor: Data Class Interface */ - 0x09, // bLength - 0x04, // bDescriptorType - 0x01, // bInterfaceNumber - 0x00, // bAlternateSetting - 0x02, // bNumEndpoints - 0x0A, // bInterfaceClass: Data Interface Class - 0x00, // bInterfaceSubclass: not used - 0x00, // bInterfaceProtocol: No class specific protocol required) - 0x00, // iInterface - - /* Endpoint 1 descriptor */ - 0x07, // bLength - 0x05, // bDescriptorType - 0x01, // bEndpointAddress: Endpoint 01 - OUT - 0x02, // bmAttributes: BULK - AT91C_EP_OUT_SIZE, // wMaxPacketSize - 0x00, - 0x00, // bInterval - - /* Endpoint 2 descriptor */ - 0x07, // bLength - 0x05, // bDescriptorType - 0x82, // bEndpointAddress: Endpoint 02 - IN - 0x02, // bmAttributes: BULK - AT91C_EP_IN_SIZE, // wMaxPacketSize - 0x00, - 0x00 // bInterval -}; - -static const char StrDescLanguageCodes[] = { - 4, // Length - 0x03, // Type is string - 0x09, 0x04 // supported language Code 0 = 0x0409 (English) -}; - -// Note: ModemManager (Linux) ignores Proxmark3 devices by matching the -// manufacturer string "proxmark.org". Don't change this. -static const char StrDescManufacturer[] = { - 26, // Length - 0x03, // Type is string - 'p', 0x00, - 'r', 0x00, - 'o', 0x00, - 'x', 0x00, - 'm', 0x00, - 'a', 0x00, - 'r', 0x00, - 'k', 0x00, - '.', 0x00, - 'o', 0x00, - 'r', 0x00, - 'g', 0x00 -}; - -static const char StrDescProduct[] = { - 8, // Length - 0x03, // Type is string - 'P', 0x00, - 'M', 0x00, - '3', 0x00 -}; - -const char* getStringDescriptor(uint8_t idx) -{ - switch (idx) { - case STR_LANGUAGE_CODES: - return StrDescLanguageCodes; - case STR_MANUFACTURER: - return StrDescManufacturer; - case STR_PRODUCT: - return StrDescProduct; - default: - return NULL; - } -} - -// Bitmap for all status bits in CSR which must be written as 1 to cause no effect -#define REG_NO_EFFECT_1_ALL AT91C_UDP_RX_DATA_BK0 | AT91C_UDP_RX_DATA_BK1 \ - |AT91C_UDP_STALLSENT | AT91C_UDP_RXSETUP \ - |AT91C_UDP_TXCOMP - -// Clear flags in the UDP_CSR register -#define UDP_CLEAR_EP_FLAGS(endpoint, flags) { \ - volatile unsigned int reg; \ - reg = pUdp->UDP_CSR[(endpoint)]; \ - reg |= REG_NO_EFFECT_1_ALL; \ - reg &= ~(flags); \ - pUdp->UDP_CSR[(endpoint)] = reg; \ -} - -// Set flags in the UDP_CSR register -#define UDP_SET_EP_FLAGS(endpoint, flags) { \ - volatile unsigned int reg; \ - reg = pUdp->UDP_CSR[(endpoint)]; \ - reg |= REG_NO_EFFECT_1_ALL; \ - reg |= (flags); \ - pUdp->UDP_CSR[(endpoint)] = reg; \ -} - -/* USB standard request codes */ -#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 - -typedef struct { - unsigned int dwDTERRate; - char bCharFormat; - char bParityType; - char bDataBits; -} AT91S_CDC_LINE_CODING, *AT91PS_CDC_LINE_CODING; - -AT91S_CDC_LINE_CODING line = { - 115200, // baudrate - 0, // 1 Stop Bit - 0, // None Parity - 8}; // 8 Data bits - - -void AT91F_CDC_Enumerate(); - -AT91PS_UDP pUdp = AT91C_BASE_UDP; -byte_t btConfiguration = 0; -byte_t btConnection = 0; -byte_t btReceiveBank = AT91C_UDP_RX_DATA_BK0; - - -//*---------------------------------------------------------------------------- -//* \fn usb_disable -//* \brief This function deactivates the USB device -//*---------------------------------------------------------------------------- -void usb_disable() { - // Disconnect the USB device - AT91C_BASE_PIOA->PIO_ODR = GPIO_USB_PU; - - // Clear all lingering interrupts - if(pUdp->UDP_ISR & AT91C_UDP_ENDBUSRES) { - pUdp->UDP_ICR = AT91C_UDP_ENDBUSRES; - } -} - - -//*---------------------------------------------------------------------------- -//* \fn usb_enable -//* \brief This function Activates the USB device -//*---------------------------------------------------------------------------- -void usb_enable() { - // Set the PLL USB Divider - AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ; - - // Specific Chip USB Initialisation - // Enables the 48MHz USB clock UDPCK and System Peripheral USB Clock - AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_UDP; - AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_UDP); - - // Enable UDP PullUp (USB_DP_PUP) : enable & Clear of the corresponding PIO - // Set in PIO mode and Configure in Output - AT91C_BASE_PIOA->PIO_PER = GPIO_USB_PU; // Set in PIO mode - AT91C_BASE_PIOA->PIO_OER = GPIO_USB_PU; // Configure as Output - - // Clear for set the Pullup resistor - AT91C_BASE_PIOA->PIO_CODR = GPIO_USB_PU; - - // Disconnect and reconnect USB controller for 100ms - usb_disable(); - - // Wait for a short while - for (volatile size_t i=0; i<0x100000; i++); - - // Reconnect USB reconnect - AT91C_BASE_PIOA->PIO_SODR = GPIO_USB_PU; - AT91C_BASE_PIOA->PIO_OER = GPIO_USB_PU; -} - - -//*---------------------------------------------------------------------------- -//* \fn usb_check -//* \brief Test if the device is configured and handle enumeration -//*---------------------------------------------------------------------------- -bool usb_check() { - AT91_REG isr = pUdp->UDP_ISR; - - if (isr & AT91C_UDP_ENDBUSRES) { - pUdp->UDP_ICR = AT91C_UDP_ENDBUSRES; - // reset all endpoints - pUdp->UDP_RSTEP = (unsigned int)-1; - pUdp->UDP_RSTEP = 0; - // Enable the function - pUdp->UDP_FADDR = AT91C_UDP_FEN; - // Configure endpoint 0 - pUdp->UDP_CSR[AT91C_EP_CONTROL] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL); - } else if (isr & AT91C_UDP_EPINT0) { - pUdp->UDP_ICR = AT91C_UDP_EPINT0; - AT91F_CDC_Enumerate(); - } - return (btConfiguration) ? true : false; -} - - -bool usb_poll() -{ - if (!usb_check()) return false; - return (pUdp->UDP_CSR[AT91C_EP_OUT] & btReceiveBank); -} - - -/** - In github PR #129, some users appears to get a false positive from - usb_poll, which returns true, but the usb_read operation - still returns 0. - This check is basically the same as above, but also checks - that the length available to read is non-zero, thus hopefully fixes the - bug. -**/ -bool usb_poll_validate_length() -{ - if (!usb_check()) return false; - if (!(pUdp->UDP_CSR[AT91C_EP_OUT] & btReceiveBank)) return false; - return (pUdp->UDP_CSR[AT91C_EP_OUT] >> 16) > 0; -} - -//*---------------------------------------------------------------------------- -//* \fn usb_read -//* \brief Read available data from Endpoint OUT -//*---------------------------------------------------------------------------- -uint32_t usb_read(byte_t* data, size_t len) { - byte_t bank = btReceiveBank; - uint32_t packetSize, nbBytesRcv = 0; - uint32_t time_out = 0; - - while (len) { - if (!usb_check()) break; - - if ( pUdp->UDP_CSR[AT91C_EP_OUT] & bank ) { - packetSize = MIN(pUdp->UDP_CSR[AT91C_EP_OUT] >> 16, len); - len -= packetSize; - while(packetSize--) - data[nbBytesRcv++] = pUdp->UDP_FDR[AT91C_EP_OUT]; - UDP_CLEAR_EP_FLAGS(AT91C_EP_OUT, bank); - if (bank == AT91C_UDP_RX_DATA_BK0) { - bank = AT91C_UDP_RX_DATA_BK1; - } else { - bank = AT91C_UDP_RX_DATA_BK0; - } - } - if (time_out++ == 0x1fff) break; - } - - btReceiveBank = bank; - return nbBytesRcv; -} - - -//*---------------------------------------------------------------------------- -//* \fn usb_write -//* \brief Send through endpoint 2 -//*---------------------------------------------------------------------------- -uint32_t usb_write(const byte_t* data, const size_t len) { - size_t length = len; - uint32_t cpt = 0; - - if (!length) return 0; - if (!usb_check()) return 0; - - // Send the first packet - cpt = MIN(length, AT91C_EP_IN_SIZE); - length -= cpt; - while (cpt--) { - pUdp->UDP_FDR[AT91C_EP_IN] = *data++; - } - UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY); - - while (length) { - // Fill the next bank - cpt = MIN(length, AT91C_EP_IN_SIZE); - length -= cpt; - while (cpt--) { - pUdp->UDP_FDR[AT91C_EP_IN] = *data++; - } - // Wait for the previous bank to be sent - while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) { - if (!usb_check()) return length; - } - UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP); - while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP); - UDP_SET_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXPKTRDY); - } - - // Wait for the end of transfer - while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) { - if (!usb_check()) return length; - } - - UDP_CLEAR_EP_FLAGS(AT91C_EP_IN, AT91C_UDP_TXCOMP); - while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP); - - return length; -} - - -//*---------------------------------------------------------------------------- -//* \fn AT91F_USB_SendData -//* \brief Send Data through the control endpoint -//*---------------------------------------------------------------------------- -unsigned int csrTab[100] = {0x00}; -unsigned char csrIdx = 0; - -static void AT91F_USB_SendData(AT91PS_UDP pUdp, const char *pData, uint32_t length) { - uint32_t cpt = 0; - AT91_REG csr; - - do { - cpt = MIN(length, 8); - length -= cpt; - - while (cpt--) - pUdp->UDP_FDR[0] = *pData++; - - if (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) { - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP); - while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP); - } - - UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXPKTRDY); - do { - csr = pUdp->UDP_CSR[AT91C_EP_CONTROL]; - - // Data IN stage has been stopped by a status OUT - if (csr & AT91C_UDP_RX_DATA_BK0) { - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RX_DATA_BK0); - return; - } - } while ( !(csr & AT91C_UDP_TXCOMP) ); - - } while (length); - - if (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) { - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP); - while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP); - } -} - - -//*---------------------------------------------------------------------------- -//* \fn AT91F_USB_SendZlp -//* \brief Send zero length packet through the control endpoint -//*---------------------------------------------------------------------------- -void AT91F_USB_SendZlp(AT91PS_UDP pUdp) { - UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXPKTRDY); - while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP) ); - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_TXCOMP); - while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_TXCOMP); -} - - -//*---------------------------------------------------------------------------- -//* \fn AT91F_USB_SendStall -//* \brief Stall the control endpoint -//*---------------------------------------------------------------------------- -void AT91F_USB_SendStall(AT91PS_UDP pUdp) { - UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_FORCESTALL); - while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_ISOERROR) ); - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR); - while (pUdp->UDP_CSR[AT91C_EP_CONTROL] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR)); -} - - -//*---------------------------------------------------------------------------- -//* \fn AT91F_CDC_Enumerate -//* \brief This function is a callback invoked when a SETUP packet is received -//*---------------------------------------------------------------------------- -void AT91F_CDC_Enumerate() { - byte_t bmRequestType, bRequest; - uint16_t wValue, wIndex, wLength, wStatus; - - if ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RXSETUP) ) - return; - - bmRequestType = pUdp->UDP_FDR[AT91C_EP_CONTROL]; - bRequest = pUdp->UDP_FDR[AT91C_EP_CONTROL]; - wValue = (pUdp->UDP_FDR[AT91C_EP_CONTROL] & 0xFF); - wValue |= (pUdp->UDP_FDR[AT91C_EP_CONTROL] << 8); - wIndex = (pUdp->UDP_FDR[AT91C_EP_CONTROL] & 0xFF); - wIndex |= (pUdp->UDP_FDR[AT91C_EP_CONTROL] << 8); - wLength = (pUdp->UDP_FDR[AT91C_EP_CONTROL] & 0xFF); - wLength |= (pUdp->UDP_FDR[AT91C_EP_CONTROL] << 8); - - if (bmRequestType & 0x80) { // Data Phase Transfer Direction Device to Host - UDP_SET_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_DIR); - while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_DIR) ); - } - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RXSETUP); - while ( (pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RXSETUP) ); - - // Handle supported standard device request Cf Table 9-3 in USB specification Rev 1.1 - switch ((bRequest << 8) | bmRequestType) { - case STD_GET_DESCRIPTOR: - if (wValue == 0x100) // Return Device Descriptor - AT91F_USB_SendData(pUdp, devDescriptor, MIN(sizeof(devDescriptor), wLength)); - else if (wValue == 0x200) // Return Configuration Descriptor - AT91F_USB_SendData(pUdp, cfgDescriptor, MIN(sizeof(cfgDescriptor), wLength)); - else if ((wValue & 0xF00) == 0x300) { // Return String Descriptor - const char *strDescriptor = getStringDescriptor(wValue & 0xff); - if (strDescriptor != NULL) { - AT91F_USB_SendData(pUdp, strDescriptor, MIN(strDescriptor[0], wLength)); - } else { - AT91F_USB_SendStall(pUdp); - } - } - else - AT91F_USB_SendStall(pUdp); - break; - case STD_SET_ADDRESS: - AT91F_USB_SendZlp(pUdp); - pUdp->UDP_FADDR = (AT91C_UDP_FEN | wValue); - pUdp->UDP_GLBSTATE = (wValue) ? AT91C_UDP_FADDEN : 0; - break; - case STD_SET_CONFIGURATION: - btConfiguration = wValue; - AT91F_USB_SendZlp(pUdp); - pUdp->UDP_GLBSTATE = (wValue) ? AT91C_UDP_CONFG : AT91C_UDP_FADDEN; - pUdp->UDP_CSR[AT91C_EP_OUT] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT) : 0; - pUdp->UDP_CSR[AT91C_EP_IN] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN) : 0; - pUdp->UDP_CSR[AT91C_EP_NOTIFY] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_INT_IN) : 0; - break; - case STD_GET_CONFIGURATION: - AT91F_USB_SendData(pUdp, (char *) &(btConfiguration), sizeof(btConfiguration)); - break; - case STD_GET_STATUS_ZERO: - wStatus = 0; // Device is Bus powered, remote wakeup disabled - AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus)); - break; - case STD_GET_STATUS_INTERFACE: - wStatus = 0; // reserved for future use - AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus)); - break; - case STD_GET_STATUS_ENDPOINT: - wStatus = 0; - wIndex &= 0x0F; - if ((pUdp->UDP_GLBSTATE & AT91C_UDP_CONFG) && (wIndex <= AT91C_EP_NOTIFY)) { - wStatus = (pUdp->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1; - AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus)); - } - else if ((pUdp->UDP_GLBSTATE & AT91C_UDP_FADDEN) && (wIndex == AT91C_EP_CONTROL)) { - wStatus = (pUdp->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1; - AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus)); - } - else - AT91F_USB_SendStall(pUdp); - break; - case STD_SET_FEATURE_ZERO: - AT91F_USB_SendStall(pUdp); - break; - case STD_SET_FEATURE_INTERFACE: - AT91F_USB_SendZlp(pUdp); - break; - case STD_SET_FEATURE_ENDPOINT: - wIndex &= 0x0F; - if ((wValue == 0) && (wIndex >= AT91C_EP_OUT) && (wIndex <= AT91C_EP_NOTIFY)) { - pUdp->UDP_CSR[wIndex] = 0; - AT91F_USB_SendZlp(pUdp); - } - else - AT91F_USB_SendStall(pUdp); - break; - case STD_CLEAR_FEATURE_ZERO: - AT91F_USB_SendStall(pUdp); - break; - case STD_CLEAR_FEATURE_INTERFACE: - AT91F_USB_SendZlp(pUdp); - break; - case STD_CLEAR_FEATURE_ENDPOINT: - wIndex &= 0x0F; - if ((wValue == 0) && (wIndex >= AT91C_EP_OUT) && (wIndex <= AT91C_EP_NOTIFY)) { - if (wIndex == AT91C_EP_OUT) - pUdp->UDP_CSR[AT91C_EP_OUT] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT); - else if (wIndex == AT91C_EP_IN) - pUdp->UDP_CSR[AT91C_EP_IN] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN); - else if (wIndex == AT91C_EP_NOTIFY) - pUdp->UDP_CSR[AT91C_EP_NOTIFY] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_INT_IN); - AT91F_USB_SendZlp(pUdp); - } - else - AT91F_USB_SendStall(pUdp); - break; - - // handle CDC class requests - case SET_LINE_CODING: - while ( !(pUdp->UDP_CSR[AT91C_EP_CONTROL] & AT91C_UDP_RX_DATA_BK0) ); - UDP_CLEAR_EP_FLAGS(AT91C_EP_CONTROL, AT91C_UDP_RX_DATA_BK0); - AT91F_USB_SendZlp(pUdp); - break; - case GET_LINE_CODING: - AT91F_USB_SendData(pUdp, (char *) &line, MIN(sizeof(line), wLength)); - break; - case SET_CONTROL_LINE_STATE: - btConnection = wValue; - AT91F_USB_SendZlp(pUdp); - break; - default: - AT91F_USB_SendStall(pUdp); - break; - } -}