diff options
Diffstat (limited to 'Demos/Device/ClassDriver/CCID/CCID.c')
| -rw-r--r-- | Demos/Device/ClassDriver/CCID/CCID.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/CCID/CCID.c b/Demos/Device/ClassDriver/CCID/CCID.c new file mode 100644 index 000000000..eaf890084 --- /dev/null +++ b/Demos/Device/ClassDriver/CCID/CCID.c @@ -0,0 +1,324 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2019. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2019 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2019 Filipe Rodrigues (filipepazrodrigues [at] gmail [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaims all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Main source file for the CCID demo. This file contains the main tasks of + * the demo and is responsible for the initial application hardware configuration. + * + * \warning + * LUFA is not a secure USB stack, and has not undergone, not is it expected to pass, any + * form of security audit. The CCID class here is presented as-is and is intended for + * research purposes only, and *should not* be used in a security critical application + * under any circumstances. + * + * \warning + * This code is not production ready and should not by any means be considered safe. + * If you plan to integrate it into your application, you should seriously consider strong + * encryption algorithms or a secure microprocessor. Since Atmel AVR microprocessors do not + * have any security requirement (therefore they don't offer any known protection against + * side channel attacks or fault injection) a secure microprocessor is the best option. + */ + +#include "CCID.h" + +/** LUFA CCID Class driver interface configuration and state information. This structure is + * passed to all CCID Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_CCID_Device_t CCID_Interface = + { + .Config = + { + .InterfaceNumber = INTERFACE_ID_CCID, + .TotalSlots = 1, + .DataINEndpoint = + { + .Address = CCID_IN_EPADDR, + .Size = CCID_EPSIZE, + .Banks = 1, + }, + .DataOUTEndpoint = + { + .Address = CCID_OUT_EPADDR, + .Size = CCID_EPSIZE, + .Banks = 1, + }, + }, + }; + + +/** Main program entry point. This routine contains the overall program flow, including initial + * setup of all components and the main program loop. + */ +int main(void) +{ + SetupHardware(); + + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); + GlobalInterruptEnable(); + + for (;;) + { + USB_USBTask(); + CCID_Device_USBTask(&CCID_Interface); + } +} + +/** Configures the board hardware and chip peripherals for the demo's functionality. */ +void SetupHardware(void) +{ +#if (ARCH == ARCH_AVR8) + /* Disable watchdog if enabled by bootloader/fuses */ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + /* Disable clock division */ + clock_prescale_set(clock_div_1); +#elif (ARCH == ARCH_XMEGA) + /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */ + XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU); + XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL); + + /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */ + XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ); + XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB); + + PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm; +#endif + + /* Hardware Initialization */ + LEDs_Init(); + USB_Init(); +} + +/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */ +void EVENT_USB_Device_Connect(void) +{ + /* Indicate USB enumerating */ + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via + * the status LEDs. + */ +void EVENT_USB_Device_Disconnect(void) +{ + /* Indicate USB not ready */ + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + bool ConfigSuccess = true; + + ConfigSuccess &= CCID_Device_ConfigureEndpoints(&CCID_Interface); + + /* Indicate endpoint configuration success or failure */ + LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); +} + +/** Event handler for the library USB Control Request reception event. */ +void EVENT_USB_Device_ControlRequest(void) +{ + CCID_Device_ProcessControlRequest(&CCID_Interface); +} + +/** Event handler for the CCID_PC_to_RDR_IccPowerOn message. This message is sent to the device + * whenever an application at the host wants to send a power off signal to a slot. + * THe slot must reply back with a recognizable ATR (answer to reset) + */ +uint8_t CALLBACK_CCID_IccPowerOn(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t slot, + uint8_t* const atr, + uint8_t* const attrSize, + uint8_t* const error) +{ + if (slot < CCID_Interface.Config.TotalSlots) + { + Iso7816_CreateSimpleAtr(atr, attrSize); + *error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else + { + *error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +/** Event handler for the CCID_PC_to_RDR_IccPowerOff message. This message is sent to the device + * whenever an application at the host wants to send a power off signal to a slot. + */ +uint8_t CALLBACK_CCID_IccPowerOff(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t slot, + uint8_t* const error) +{ + if (slot < CCID_Interface.Config.TotalSlots) + { + *error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_NOICCPRESENT; + } + else + { + *error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +/** Event handler for the CCID_PC_to_RDR_GetSlotStatus. This message is sent to the device + * whenever an application at the host wants to the get the current slot status + * + */ +uint8_t CALLBACK_CCID_GetSlotStatus(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t slot, + uint8_t* const error) +{ + if (slot < CCID_Interface.Config.TotalSlots) + { + *error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else + { + *error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +/** Event handler for the CCID_PC_to_RDR_SetParameters when T=0. This message is sent to + * the device whenever an application at the host wants to set the parameters for a + * given slot. + */ +uint8_t CALLBACK_CCID_SetParameters_T0(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t Slot, + uint8_t* const Error, + USB_CCID_ProtocolData_T0_t* const T0) +{ + if (Slot == 0) + { + // Set parameters + memcpy(&CCIDInterfaceInfo->ProtocolData, T0, sizeof(USB_CCID_ProtocolData_T0_t)); + + *Error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else + { + *Error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +/** Event handler for the CCID_PC_to_RDR_GetParameters when T=0. This message is sent to + * the device whenever an application at the host wants to get the current parameters for + * a given slot. + */ +uint8_t CALLBACK_CCID_GetParameters_T0(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t Slot, + uint8_t* const Error, + uint8_t* const ProtocolNum, + USB_CCID_ProtocolData_T0_t* const T0) +{ + if (Slot == 0) + { + *ProtocolNum = CCID_PROTOCOLNUM_T0; + memcpy(T0, &CCIDInterfaceInfo->ProtocolData, sizeof(USB_CCID_ProtocolData_T0_t)); + + *Error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else + { + *Error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +/** Event handler for the CCID_PC_to_RDR_XfrBlock. This message is sent to the device + * whenever an application at the host wants to send a block of bytes to the device + * THe device reply back with an array of bytes + */ +uint8_t CALLBACK_CCID_XfrBlock(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t Slot, + const uint8_t* ReceivedBuffer, + const uint8_t ReceivedBufferSize, + uint8_t* const SendBuffer, + uint8_t* const SentBufferSize, + uint8_t* const Error) +{ + if (Slot < CCID_Interface.Config.TotalSlots) + { + uint8_t OkResponse[2] = {0x90, 0x00}; + + memcpy(SendBuffer, OkResponse, sizeof(OkResponse)); + *SentBufferSize = sizeof(OkResponse); + + *Error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_NOICCPRESENT; + } + else + { + *Error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} + +uint8_t CALLBACK_CCID_Abort(USB_ClassInfo_CCID_Device_t* const CCIDInterfaceInfo, + const uint8_t Slot, + const uint8_t Seq, + uint8_t* const Error) +{ + if (CCID_Interface.State.Aborted && Slot == 0 && CCID_Interface.State.AbortedSeq == Seq) + { + CCID_Interface.State.Aborted = false; + CCID_Interface.State.AbortedSeq = -1; + + *Error = CCID_ERROR_NO_ERROR; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else if (!CCID_Interface.State.Aborted) + { + *Error = CCID_ERROR_CMD_NOT_ABORTED; + return CCID_COMMANDSTATUS_PROCESSEDWITHOUTERROR | CCID_ICCSTATUS_PRESENTANDACTIVE; + } + else if (Slot != 0) + { + *Error = CCID_ERROR_SLOT_NOT_FOUND; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } + else + { + *Error = CCID_ERROR_NOT_SUPPORTED; + return CCID_COMMANDSTATUS_FAILED | CCID_ICCSTATUS_NOICCPRESENT; + } +} |