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roel@libnfc.org 2012-12-04 23:41:54 +00:00
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commit 5bcc76c427
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armsrc/cmd.c Normal file
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/*
* Proxmark send and receive commands
*
* Copyright (c) 2010, 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.
*
* @file cmd.c
* @brief
*/
#include "cmd.h"
#include "string.h"
#include "util.h"
#include "proxmark3.h"
//static UsbCommand txcmd;
bool cmd_receive(UsbCommand* cmd) {
// Check if there is a usb packet available
if (!usb_poll()) return false;
// Try to retrieve the available command frame
size_t rxlen = usb_read((byte_t*)cmd,sizeof(UsbCommand));
// Check if the transfer was complete
if (rxlen != sizeof(UsbCommand)) return false;
// Received command successfully
return true;
}
bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, byte_t* data, size_t len) {
UsbCommand txcmd;
// Compose the outgoing command frame
txcmd.cmd = cmd;
txcmd.arg[0] = arg0;
txcmd.arg[1] = arg1;
txcmd.arg[2] = arg2;
// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
if (data && len) {
memcpy(txcmd.d.asBytes,data,MIN(len,USB_CMD_DATA_SIZE));
}
// Send frame and make sure all bytes are transmitted
if (usb_write((byte_t*)&txcmd,sizeof(UsbCommand)) != 0) return false;
return true;
}

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/*
* Proxmark send and receive commands
*
* Copyright (c) 2010, 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.
*
* @file cmd.h
* @brief
*/
#ifndef _PROXMARK_CMD_H_
#define _PROXMARK_CMD_H_
#include <common.h>
#include <usb_cmd.h>
#include "usb_cdc.h"
bool cmd_receive(UsbCommand* cmd);
bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, byte_t* data, size_t len);
#endif // _PROXMARK_CMD_H_

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/*
* 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"
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define AT91C_EP_IN_SIZE 0x40
#define AT91C_EP_OUT 1
#define AT91C_EP_OUT_SIZE 0x40
#define AT91C_EP_IN 2
const char devDescriptor[] = {
/* Device descriptor */
0x12, // bLength
0x01, // bDescriptorType
0x10,0x01, // Complies with USB Spec. Release (0110h = release 1.10)
0x02, // bDeviceClass: CDC class code
0x00, // bDeviceSubclass: CDC class sub code
0x00, // bDeviceProtocol: CDC Device protocol
0x08, // bMaxPacketSize0
0xeb,0x03, // Vendor ID (random numbers)
0x25,0x61, // Product ID (random numbers)
0x01,0x00, // Device release number (0001)
0x01, // iManufacturer // 0x01
0x00, // iProduct
0x00, // SerialNumber
0x01 // bNumConfigs
};
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
0x00, // CMaxPower
/* Communication Class Interface Descriptor Requirement */
0x09, // bLength
0x04, // bDescriptorType
0x00, // bInterfaceNumber
0x00, // bAlternateSetting
0x01, // bNumEndpoints
0x02, // bInterfaceClass
0x02, // bInterfaceSubclass
0x00, // bInterfaceProtocol
0x00, // iInterface
/* Header Functional Descriptor */
0x05, // bFunction Length
0x24, // bDescriptor type: CS_INTERFACE
0x00, // bDescriptor subtype: Header Func Desc
0x10, // bcdCDC:1.1
0x01,
/* ACM Functional Descriptor */
0x04, // bFunctionLength
0x24, // bDescriptor Type: CS_INTERFACE
0x02, // bDescriptor Subtype: ACM Func Desc
0x00, // bmCapabilities
/* Union Functional Descriptor */
0x05, // bFunctionLength
0x24, // bDescriptorType: CS_INTERFACE
0x06, // bDescriptor Subtype: Union Func Desc
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 Func Desc
0x00, // bmCapabilities: D1 + D0
0x01, // bDataInterface: Data Class Interface 1
/* Endpoint 1 descriptor */
0x07, // bLength
0x05, // bDescriptorType
0x83, // bEndpointAddress, Endpoint 03 - IN
0x03, // bmAttributes INT
0x08, // wMaxPacketSize
0x00,
0xFF, // bInterval
/* Data Class Interface Descriptor Requirement */
0x09, // bLength
0x04, // bDescriptorType
0x01, // bInterfaceNumber
0x00, // bAlternateSetting
0x02, // bNumEndpoints
0x0A, // 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
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
};
const char strDescriptor[] = {
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,
};
/* 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
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 AT91F_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 = AT91C_PIO_PA16; // Set in PIO mode
AT91C_BASE_PIOA->PIO_OER = AT91C_PIO_PA16; // Configure as Output
// Clear for set the Pul up resistor
AT91C_BASE_PIOA->PIO_CODR = AT91C_PIO_PA16;
}
//*----------------------------------------------------------------------------
//* \fn AT91F_UDP_IsConfigured
//* \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[0] = (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);
}
//*----------------------------------------------------------------------------
//* \fn AT91F_UDP_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];
pUdp->UDP_CSR[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 AT91F_CDC_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-1);
length -= cpt;
while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
pUdp->UDP_CSR[AT91C_EP_IN] |= AT91C_UDP_TXPKTRDY;
while (length) {
// Fill the second bank
cpt = MIN(length, AT91C_EP_IN_SIZE-1);
length -= cpt;
while (cpt--) pUdp->UDP_FDR[AT91C_EP_IN] = *data++;
// Wait for the the first bank to be sent
while (!(pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP)) {
if (!usb_check()) return length;
}
pUdp->UDP_CSR[AT91C_EP_IN] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[AT91C_EP_IN] & AT91C_UDP_TXCOMP);
pUdp->UDP_CSR[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;
}
pUdp->UDP_CSR[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];
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[0] & AT91C_UDP_TXCOMP) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
do {
csr = pUdp->UDP_CSR[0];
// Data IN stage has been stopped by a status OUT
if (csr & AT91C_UDP_RX_DATA_BK0) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
return;
}
} while ( !(csr & AT91C_UDP_TXCOMP) );
} while (length);
if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
}
//*----------------------------------------------------------------------------
//* \fn AT91F_USB_SendZlp
//* \brief Send zero length packet through the control endpoint
//*----------------------------------------------------------------------------
void AT91F_USB_SendZlp(AT91PS_UDP pUdp)
{
pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) );
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP);
}
//*----------------------------------------------------------------------------
//* \fn AT91F_USB_SendStall
//* \brief Stall the control endpoint
//*----------------------------------------------------------------------------
void AT91F_USB_SendStall(AT91PS_UDP pUdp)
{
pUdp->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_ISOERROR) );
pUdp->UDP_CSR[0] &= ~(AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
while (pUdp->UDP_CSR[0] & (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[0] & AT91C_UDP_RXSETUP) )
return;
bmRequestType = pUdp->UDP_FDR[0];
bRequest = pUdp->UDP_FDR[0];
wValue = (pUdp->UDP_FDR[0] & 0xFF);
wValue |= (pUdp->UDP_FDR[0] << 8);
wIndex = (pUdp->UDP_FDR[0] & 0xFF);
wIndex |= (pUdp->UDP_FDR[0] << 8);
wLength = (pUdp->UDP_FDR[0] & 0xFF);
wLength |= (pUdp->UDP_FDR[0] << 8);
if (bmRequestType & 0x80) {
pUdp->UDP_CSR[0] |= AT91C_UDP_DIR;
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_DIR) );
}
pUdp->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
while ( (pUdp->UDP_CSR[0] & 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 & 0x300) == 0x300) // Return String Descriptor
AT91F_USB_SendData(pUdp, strDescriptor, MIN(sizeof(strDescriptor), wLength));
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[1] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT) : 0;
pUdp->UDP_CSR[2] = (wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN) : 0;
pUdp->UDP_CSR[3] = (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;
AT91F_USB_SendData(pUdp, (char *) &wStatus, sizeof(wStatus));
break;
case STD_GET_STATUS_INTERFACE:
wStatus = 0;
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 <= 3)) {
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 == 0)) {
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 && (wIndex <= 3)) {
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 && (wIndex <= 3)) {
if (wIndex == 1)
pUdp->UDP_CSR[1] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT);
else if (wIndex == 2)
pUdp->UDP_CSR[2] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN);
else if (wIndex == 3)
pUdp->UDP_CSR[3] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_ISO_IN);
AT91F_USB_SendZlp(pUdp);
}
else
AT91F_USB_SendStall(pUdp);
break;
// handle CDC class requests
case SET_LINE_CODING:
while ( !(pUdp->UDP_CSR[0] & AT91C_UDP_RX_DATA_BK0) );
pUdp->UDP_CSR[0] &= ~(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;
}
}

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/*
* 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
*/
#ifndef _USB_CDC_H_
#define _USB_CDC_H_
#include <common.h>
void usb_enable();
bool usb_check();
bool usb_poll();
uint32_t usb_read(byte_t* data, size_t len);
uint32_t usb_write(const byte_t* data, const size_t len);
#endif // _USB_CDC_H_

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/*
* Proxmark3 generic uart / rs232/ serial port library
*
* 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.
*
* @file uart.c
* @brief
*
* Partly based on uart-code written by Teunis van Beelen, available:
* http://www.teuniz.net/RS-232/index.html
*
*/
#include "uart.h"
#include "messages.h"
// Test if we are dealing with unix operating systems
#ifndef _WIN32
#include <termios.h>
typedef struct termios term_info;
typedef struct {
int fd; // Serial port file descriptor
term_info tiOld; // Terminal info before using the port
term_info tiNew; // Terminal info during the transaction
} serial_port_unix;
// Set time-out on 30 miliseconds
const struct timeval timeout = {
.tv_sec = 0, // 0 second
.tv_usec = 30000 // 30000 micro seconds
};
// Work-around to claim uart interface using the c_iflag (software input processing) from the termios struct
#define CCLAIMED 0x80000000
serial_port uart_open(const char* pcPortName)
{
serial_port_unix* sp = malloc(sizeof(serial_port_unix));
if (sp == 0) return INVALID_SERIAL_PORT;
sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK);
if(sp->fd == -1)
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
if(tcgetattr(sp->fd,&sp->tiOld) == -1)
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Make sure the port is not claimed already
if (sp->tiOld.c_iflag & CCLAIMED)
{
uart_close(sp);
return CLAIMED_SERIAL_PORT;
}
// Copy the old terminal info struct
sp->tiNew = sp->tiOld;
sp->tiNew.c_cflag = CS8 | CLOCAL | CREAD;
sp->tiNew.c_iflag = CCLAIMED | IGNPAR;
sp->tiNew.c_oflag = 0;
sp->tiNew.c_lflag = 0;
sp->tiNew.c_cc[VMIN] = 0; // block until n bytes are received
sp->tiNew.c_cc[VTIME] = 0; // block until a timer expires (n * 100 mSec.)
if(tcsetattr(sp->fd,TCSANOW,&sp->tiNew) == -1)
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
tcflush(sp->fd, TCIFLUSH);
return sp;
}
void uart_set_speed(serial_port sp, const uint32_t uiPortSpeed)
{
DBG("Serial port speed requested to be set to %d bauds.", uiPortSpeed);
// Set port speed (Input and Output)
speed_t stPortSpeed = B9600;
switch(uiPortSpeed) {
case 9600: stPortSpeed = B9600;
break;
case 19200: stPortSpeed = B19200;
break;
case 38400: stPortSpeed = B38400;
break;
case 57600: stPortSpeed = B57600;
break;
case 115200: stPortSpeed = B115200;
break;
case 230400: stPortSpeed = B230400;
break;
#ifdef B460800
case 460800: stPortSpeed = B460800;
break;
#endif
default:
#ifdef B460800
ERR("Unable to set serial port speed to %d bauds. Speed value must be one of these constants: 9600 (default), 19200, 38400, 57600, 115200, 230400 or 460800.", uiPortSpeed);
#else
ERR("Unable to set serial port speed to %d bauds. Speed value must be one of these constants: 9600 (default), 19200, 38400, 57600, 115200 or 230400.", uiPortSpeed);
#endif
};
const serial_port_unix* spu = (serial_port_unix*)sp;
cfsetispeed((struct termios*)&spu->tiNew, stPortSpeed);
cfsetospeed((struct termios*)&spu->tiNew, stPortSpeed);
if( tcsetattr(spu->fd, TCSADRAIN, &spu->tiNew) == -1)
{
ERR("Unable to apply new speed settings.");
}
}
uint32_t uart_get_speed(const serial_port sp)
{
uint32_t uiPortSpeed = 0;
const serial_port_unix* spu = (serial_port_unix*)sp;
switch (cfgetispeed(&spu->tiNew))
{
case B9600: uiPortSpeed = 9600;
break;
case B19200: uiPortSpeed = 19200;
break;
case B38400: uiPortSpeed = 38400;
break;
case B57600: uiPortSpeed = 57600;
break;
case B115200: uiPortSpeed = 115200;
break;
case B230400: uiPortSpeed = 230400;
break;
#ifdef B460800
case B460800: uiPortSpeed = 460800;
break;
#endif
}
return uiPortSpeed;
}
void uart_close(const serial_port sp)
{
tcsetattr(((serial_port_unix*)sp)->fd,TCSANOW,&((serial_port_unix*)sp)->tiOld);
close(((serial_port_unix*)sp)->fd);
free(sp);
}
bool uart_cts(const serial_port sp)
{
char status;
if (ioctl(((serial_port_unix*)sp)->fd,TIOCMGET,&status) < 0) return false;
return (status & TIOCM_CTS);
}
bool uart_receive(const serial_port sp, byte_t* pbtRx, size_t* pszRxLen)
{
int res;
int byteCount;
fd_set rfds;
struct timeval tv;
// Reset the output count
*pszRxLen = 0;
do {
// Reset file descriptor
FD_ZERO(&rfds);
FD_SET(((serial_port_unix*)sp)->fd,&rfds);
tv = timeout;
res = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &tv);
// Read error
if (res < 0) {
DBG("RX error.");
return false;
}
// Read time-out
if (res == 0) {
if (*pszRxLen == 0) {
// Error, we received no data
DBG("RX time-out, buffer empty.");
return false;
} else {
// We received some data, but nothing more is available
return true;
}
}
// Retrieve the count of the incoming bytes
res = ioctl(((serial_port_unix*)sp)->fd, FIONREAD, &byteCount);
if (res < 0) return false;
// There is something available, read the data
res = read(((serial_port_unix*)sp)->fd,pbtRx+(*pszRxLen),byteCount);
// Stop if the OS has some troubles reading the data
if (res <= 0) return false;
*pszRxLen += res;
} while (byteCount);
return true;
}
bool uart_send(const serial_port sp, const byte_t* pbtTx, const size_t szTxLen)
{
int32_t res;
size_t szPos = 0;
fd_set rfds;
struct timeval tv;
while (szPos < szTxLen)
{
// Reset file descriptor
FD_ZERO(&rfds);
FD_SET(((serial_port_unix*)sp)->fd,&rfds);
tv = timeout;
res = select(((serial_port_unix*)sp)->fd+1, NULL, &rfds, NULL, &tv);
// Write error
if (res < 0) {
DBG("TX error.");
return false;
}
// Write time-out
if (res == 0) {
DBG("TX time-out.");
return false;
}
// Send away the bytes
res = write(((serial_port_unix*)sp)->fd,pbtTx+szPos,szTxLen-szPos);
// Stop if the OS has some troubles sending the data
if (res <= 0) return false;
szPos += res;
}
return true;
}
#else
// The windows serial port implementation
typedef struct {
HANDLE hPort; // Serial port handle
DCB dcb; // Device control settings
COMMTIMEOUTS ct; // Serial port time-out configuration
} serial_port_windows;
serial_port uart_open(const char* pcPortName)
{
char acPortName[255];
serial_port_windows* sp = malloc(sizeof(serial_port_windows));
// Copy the input "com?" to "\\.\COM?" format
sprintf(acPortName,"\\\\.\\%s",pcPortName);
_strupr(acPortName);
// Try to open the serial port
sp->hPort = CreateFileA(acPortName,GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL);
if (sp->hPort == INVALID_HANDLE_VALUE)
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Prepare the device control
memset(&sp->dcb, 0, sizeof(DCB));
sp->dcb.DCBlength = sizeof(DCB);
if(!BuildCommDCBA("baud=9600 data=8 parity=N stop=1",&sp->dcb))
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Update the active serial port
if(!SetCommState(sp->hPort,&sp->dcb))
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
sp->ct.ReadIntervalTimeout = 0;
sp->ct.ReadTotalTimeoutMultiplier = 0;
sp->ct.ReadTotalTimeoutConstant = 30;
sp->ct.WriteTotalTimeoutMultiplier = 0;
sp->ct.WriteTotalTimeoutConstant = 30;
if(!SetCommTimeouts(sp->hPort,&sp->ct))
{
uart_close(sp);
return INVALID_SERIAL_PORT;
}
PurgeComm(sp->hPort, PURGE_RXABORT | PURGE_RXCLEAR);
return sp;
}
void uart_close(const serial_port sp)
{
CloseHandle(((serial_port_windows*)sp)->hPort);
free(sp);
}
void uart_set_speed(serial_port sp, const uint32_t uiPortSpeed)
{
serial_port_windows* spw;
DBG("Serial port speed requested to be set to %d bauds.", uiPortSpeed);
// Set port speed (Input and Output)
switch(uiPortSpeed) {
case 9600:
case 19200:
case 38400:
case 57600:
case 115200:
case 230400:
case 460800:
break;
default:
ERR("Unable to set serial port speed to %d bauds. Speed value must be one of these constants: 9600 (default), 19200, 38400, 57600, 115200, 230400 or 460800.", uiPortSpeed);
};
spw = (serial_port_windows*)sp;
spw->dcb.BaudRate = uiPortSpeed;
if (!SetCommState(spw->hPort, &spw->dcb))
{
ERR("Unable to apply new speed settings.");
}
}
uint32_t uart_get_speed(const serial_port sp)
{
const serial_port_windows* spw = (serial_port_windows*)sp;
if (!GetCommState(spw->hPort, (serial_port)&spw->dcb))
return spw->dcb.BaudRate;
return 0;
}
bool uart_receive(const serial_port sp, byte_t* pbtRx, size_t* pszRxLen)
{
ReadFile(((serial_port_windows*)sp)->hPort,pbtRx,*pszRxLen,(LPDWORD)pszRxLen,NULL);
return (*pszRxLen != 0);
}
bool uart_send(const serial_port sp, const byte_t* pbtTx, const size_t szTxLen)
{
DWORD dwTxLen = 0;
return WriteFile(((serial_port_windows*)sp)->hPort,pbtTx,szTxLen,&dwTxLen,NULL);
return (dwTxLen != 0);
}
#endif

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/*
* Proxmark3 generic uart / rs232/ serial port library
*
* 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.
*
* @file uart.h
* @brief
*
*/
#ifndef _PROXMARK3_RS232_H_
#define _PROXMARK3_RS232_H_
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
typedef unsigned char byte_t;
// Handle platform specific includes
#ifndef _WIN32
#include <termios.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#include <sys/time.h>
#else
#include <windows.h>
#endif
// Define shortcut to types to make code more readable
typedef void* serial_port;
#define INVALID_SERIAL_PORT (void*)(~1)
#define CLAIMED_SERIAL_PORT (void*)(~2)
serial_port uart_open(const char* pcPortName);
void uart_close(const serial_port sp);
void uart_set_speed(serial_port sp, const uint32_t uiPortSpeed);
uint32_t uart_get_speed(const serial_port sp);
bool uart_receive(const serial_port sp, byte_t* pbtRx, size_t* pszRxLen);
bool uart_send(const serial_port sp, const byte_t* pbtTx, const size_t szTxLen);
#endif // _PROXMARK3_RS232_H_