From 98f9d442b44dbe2e3e4b3c8296be7e78d5d05450 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 24 Jul 2011 09:39:28 +0200 Subject: initial import of the usb ccid example for the sam7s --- usb-device-ccid-project/main.c | 561 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 561 insertions(+) create mode 100644 usb-device-ccid-project/main.c (limited to 'usb-device-ccid-project/main.c') diff --git a/usb-device-ccid-project/main.c b/usb-device-ccid-project/main.c new file mode 100644 index 0000000..7badfeb --- /dev/null +++ b/usb-device-ccid-project/main.c @@ -0,0 +1,561 @@ +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2008, Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the disclaimer below. + * + * Atmel's name may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * DISCLAIMED. IN NO EVENT SHALL ATMEL 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. + * ---------------------------------------------------------------------------- + */ + +//------------------------------------------------------------------------------ +/// \dir "USB device CCID project with AT91SAM Microcontrollers" +/// +/// !!!Purpose +/// +/// This example demonstrates the CCID (USB Chip/Smart Card Interface Devices) on AT91 +/// microcontrollers. +/// +/// !!!Requirements +/// +/// This example can be used on AT91SAM9260-EK, AT91SAM9263-EK, AT91SAM9G20-EK, +/// AT91SAM9XE-EK. +/// +/// !!!Description +/// +/// This application implement a CCID driver.
+/// Different tests can be done with the Windows(c) software Smart Access(c).
+/// Smart Access: a powerful scripting tool to write sequences of commands. +/// +/// !!!Usage +/// +/// -# Install Smart Access(c) software. +/// -# Build the program and download it inside the evaluation board. Please +/// refer to the SAM-BA User Guide, +/// the GNU-Based Software Development +/// application note or to the IAR EWARM User Guide, +/// depending on your chosen solution. +/// -# On the computer, open and configure a terminal application (e.g. +/// HyperTerminal on Microsoft Windows) with these settings: +/// - 115200 bauds +/// - 8 data bits +/// - No parity +/// - 1 stop bit +/// - Hardware flow control (RTS/CTS) +/// -# Start the application. The following traces shall appear on the terminal: +/// \code +/// -- USB Device CCID Project xxx -- +/// -- AT91xxxxxx-xx +/// -- Compiled: xxx xx xxxx xx:xx:xx -- +/// \endcode +/// -# Connect the USB cable to the board. Traces should start to appear on the terminal.
+/// If this is the first time the device is connected to the PC, +/// the operating system may take some time to install it. +/// -# The device is enumerated as a Smart Card Device implementing CCID class.
+/// -# The host use the CCID device driver (usbccid.sys) as the functionnal driver. +/// -# Launch Smart Access and connect it to the Card Reader Atmel.
+/// Use Smart Access for launch instruction command.
+/// Note that instruction command case one, two and three are implemanted. +/// +/// !!!Contents +/// +/// The definitions and functions provided are dispatched inside a number of +/// files: +/// - main.c main software +//------------------------------------------------------------------------------ + + + +/// \unit +/// +/// !Purpose +/// Implementation of the USB CCID. +/// +/// !Contents +/// The code can be roughly broken down as follows: +/// - Configuration functions +/// - Interrupt handlers +/// - Utility functions +/// - The main() function, which implements the program behavior +/// - Use ICC insertion event() and CCID_SmartCardRequest() CCID functions +/// +/// Please refer to the list of functions in the #Overview# tab of this unit +/// for more detailed information. +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +// Headers +//------------------------------------------------------------------------------ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +//----------------------------------------------------------------------------- +// Local Define +//----------------------------------------------------------------------------- +/// Use for power management +#define STATE_IDLE 0 +/// The USB device is in suspend state +#define STATE_SUSPEND 4 +/// The USB device is in resume state +#define STATE_RESUME 5 + +//----------------------------------------------------------------------------- +// Local variables +//----------------------------------------------------------------------------- +/// State of USB, for suspend and resume +unsigned char USBState = STATE_IDLE; + +/// List of pins that must be configured for use by the application. +static const Pin pinsISO7816[] = {PINS_ISO7816}; +static const Pin pinIso7816RstMC = PIN_ISO7816_RSTMC; + +//------------------------------------------------------------------------------ +// Optional smartcard detection +//------------------------------------------------------------------------------ +#ifdef PIN_SMARTCARD_CONNECT + +/// Smartcard detection pin. +static const Pin pinSmartCard = PIN_SMARTCARD_CONNECT; + +//------------------------------------------------------------------------------ +/// PIO interrupt service routine. Checks if the smartcard has been connected +/// or disconnected. +//------------------------------------------------------------------------------ +static void ISR_PioSmartCard(const Pin *pPin) +{ + // Check all pending interrupts + if ((pinSmartCard.pio->PIO_ISR & pinSmartCard.mask) != 0) { + + // Check current level on pin + if (PIO_Get(&pinSmartCard) == 0) { + + CCID_Insertion(); + } + else { + + CCID_Removal(); + } + } +} + +//------------------------------------------------------------------------------ +/// Configures the smartcard detection pin to trigger an interrupt. +//------------------------------------------------------------------------------ +static void ConfigureCardDetection(void) +{ + PIO_Configure(&pinSmartCard, 1); + PIO_ConfigureIt(&pinSmartCard, ISR_PioSmartCard); + PIO_EnableIt(&pinSmartCard); +} + +#else + +//------------------------------------------------------------------------------ +/// Dummy implementation. +//------------------------------------------------------------------------------ +static void ConfigureCardDetection(void) +{ + printf("-I- Smartcard detection not supported.\n\r"); +} + +#endif + + +//------------------------------------------------------------------------------ +/// VBus monitoring (optional) +//------------------------------------------------------------------------------ +#if defined(PIN_USB_VBUS) + +#define VBUS_CONFIGURE() VBus_Configure() + +/// VBus pin instance. +static const Pin pinVbus = PIN_USB_VBUS; + +//------------------------------------------------------------------------------ +/// Handles interrupts coming from PIO controllers. +//------------------------------------------------------------------------------ +static void ISR_Vbus(const Pin *pPin) +{ + // Check current level on VBus + if (PIO_Get(&pinVbus)) { + + TRACE_INFO("VBUS conn\n\r"); + USBD_Connect(); + } + else { + + TRACE_INFO("VBUS discon\n\r"); + USBD_Disconnect(); + } +} + +//------------------------------------------------------------------------------ +/// Configures the VBus pin to trigger an interrupt when the level on that pin +/// changes. +//------------------------------------------------------------------------------ +static void VBus_Configure( void ) +{ + TRACE_INFO("VBus configuration\n\r"); + + // Configure PIO + PIO_Configure(&pinVbus, 1); + PIO_ConfigureIt(&pinVbus, ISR_Vbus); + PIO_EnableIt(&pinVbus); + + // Check current level on VBus + if (PIO_Get(&pinVbus)) { + + // if VBUS present, force the connect + TRACE_INFO("VBUS conn\n\r"); + USBD_Connect(); + } + else { + USBD_Disconnect(); + } +} + +#else + #define VBUS_CONFIGURE() USBD_Connect() +#endif //#if defined(PIN_USB_VBUS) + +#if defined (CP15_PRESENT) +//------------------------------------------------------------------------------ +/// Put the CPU in 32kHz, disable PLL, main oscillator +/// Put voltage regulator in standby mode +//------------------------------------------------------------------------------ +void LowPowerMode(void) +{ + PMC_CPUInIdleMode(); +} +//------------------------------------------------------------------------------ +/// Put voltage regulator in normal mode +/// Return the CPU to normal speed 48MHz, enable PLL, main oscillator +//------------------------------------------------------------------------------ +void NormalPowerMode(void) +{ +} + +#elif defined(at91sam7a3) +//------------------------------------------------------------------------------ +/// Put the CPU in 32kHz, disable PLL, main oscillator +//------------------------------------------------------------------------------ +void LowPowerMode(void) +{ + // MCK=48MHz to MCK=32kHz + // MCK = SLCK/2 : change source first from 48 000 000 to 18. / 2 = 9M + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=SLCK : then change prescaler + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_SLOW_CLK; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // disable PLL + AT91C_BASE_PMC->PMC_PLLR = 0; + // Disable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = 0; + + PMC_DisableProcessorClock(); +} +//------------------------------------------------------------------------------ +/// Return the CPU to normal speed 48MHz, enable PLL, main oscillator +//------------------------------------------------------------------------------ +void NormalPowerMode(void) +{ + // MCK=32kHz to MCK=48MHz + // enable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = (( (AT91C_CKGR_OSCOUNT & (0x06 <<8)) | AT91C_CKGR_MOSCEN )); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS ) ); + + // enable PLL@96MHz + AT91C_BASE_PMC->PMC_PLLR = ((AT91C_CKGR_DIV & 0x0E) | + (AT91C_CKGR_PLLCOUNT & (28<<8)) | + (AT91C_CKGR_MUL & (0x48<<16))); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK ) ); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ; + // MCK=SLCK/2 : change prescaler first + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=PLLCK/2 : then change source + AT91C_BASE_PMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK ; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); +} + +#elif defined (at91sam7se) +//------------------------------------------------------------------------------ +/// Put the CPU in 32kHz, disable PLL, main oscillator +/// Put voltage regulator in standby mode +//------------------------------------------------------------------------------ +void LowPowerMode(void) +{ + // MCK=48MHz to MCK=32kHz + // MCK = SLCK/2 : change source first from 48 000 000 to 18. / 2 = 9M + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=SLCK : then change prescaler + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_SLOW_CLK; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // disable PLL + AT91C_BASE_PMC->PMC_PLLR = 0; + // Disable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = 0; + + // Voltage regulator in standby mode : Enable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR |= AT91C_VREG_PSTDBY; + + PMC_DisableProcessorClock(); +} +//------------------------------------------------------------------------------ +/// Put voltage regulator in normal mode +/// Return the CPU to normal speed 48MHz, enable PLL, main oscillator +//------------------------------------------------------------------------------ +void NormalPowerMode(void) +{ + // Voltage regulator in normal mode : Disable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR &= ~AT91C_VREG_PSTDBY; + + // MCK=32kHz to MCK=48MHz + // enable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = (( (AT91C_CKGR_OSCOUNT & (0x06 <<8)) | AT91C_CKGR_MOSCEN )); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS ) ); + + // enable PLL@96MHz + AT91C_BASE_PMC->PMC_PLLR = ((AT91C_CKGR_DIV & 0x0E) | + (AT91C_CKGR_PLLCOUNT & (28<<8)) | + (AT91C_CKGR_MUL & (0x48<<16))); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK ) ); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ; + // MCK=SLCK/2 : change prescaler first + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=PLLCK/2 : then change source + AT91C_BASE_PMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK ; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); +} + +#elif defined (at91sam7s) +//------------------------------------------------------------------------------ +/// Put the CPU in 32kHz, disable PLL, main oscillator +/// Put voltage regulator in standby mode +//------------------------------------------------------------------------------ +void LowPowerMode(void) +{ + // MCK=48MHz to MCK=32kHz + // MCK = SLCK/2 : change source first from 48 000 000 to 18. / 2 = 9M + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=SLCK : then change prescaler + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_SLOW_CLK; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // disable PLL + AT91C_BASE_PMC->PMC_PLLR = 0; + // Disable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = 0; + + // Voltage regulator in standby mode : Enable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR |= AT91C_VREG_PSTDBY; + + PMC_DisableProcessorClock(); +} + +//------------------------------------------------------------------------------ +/// Put voltage regulator in normal mode +/// Return the CPU to normal speed 48MHz, enable PLL, main oscillator +//------------------------------------------------------------------------------ +void NormalPowerMode(void) +{ + // Voltage regulator in normal mode : Disable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR &= ~AT91C_VREG_PSTDBY; + + // MCK=32kHz to MCK=48MHz + // enable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = (( (AT91C_CKGR_OSCOUNT & (0x06 <<8)) | AT91C_CKGR_MOSCEN )); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS ) ); + + // enable PLL@96MHz + AT91C_BASE_PMC->PMC_PLLR = ((AT91C_CKGR_DIV & 0x0E) | + (AT91C_CKGR_PLLCOUNT & (28<<8)) | + (AT91C_CKGR_MUL & (0x48<<16))); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK ) ); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ; + // MCK=SLCK/2 : change prescaler first + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=PLLCK/2 : then change source + AT91C_BASE_PMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK ; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + +} + +#elif defined (at91sam7x) || defined (at91sam7xc) +//------------------------------------------------------------------------------ +/// Put the CPU in 32kHz, disable PLL, main oscillator +/// Put voltage regulator in standby mode +//------------------------------------------------------------------------------ +void LowPowerMode(void) +{ + // MCK=48MHz to MCK=32kHz + // MCK = SLCK/2 : change source first from 48 000 000 to 18. / 2 = 9M + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=SLCK : then change prescaler + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_SLOW_CLK; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // disable PLL + AT91C_BASE_PMC->PMC_PLLR = 0; + // Disable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = 0; + + // Voltage regulator in standby mode : Enable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR |= AT91C_VREG_PSTDBY; + + PMC_DisableProcessorClock(); +} + +//------------------------------------------------------------------------------ +/// Put voltage regulator in normal mode +/// Return the CPU to normal speed 48MHz, enable PLL, main oscillator +//------------------------------------------------------------------------------ +void NormalPowerMode(void) +{ + // Voltage regulator in normal mode : Disable VREG Low Power Mode + AT91C_BASE_VREG->VREG_MR &= ~AT91C_VREG_PSTDBY; + + // MCK=32kHz to MCK=48MHz + // enable Main Oscillator + AT91C_BASE_PMC->PMC_MOR = (( (AT91C_CKGR_OSCOUNT & (0x06 <<8)) | AT91C_CKGR_MOSCEN )); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS ) ); + + // enable PLL@96MHz + AT91C_BASE_PMC->PMC_PLLR = ((AT91C_CKGR_DIV & 0x0E) | + (AT91C_CKGR_PLLCOUNT & (28<<8)) | + (AT91C_CKGR_MUL & (0x48<<16))); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK ) ); + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ; + // MCK=SLCK/2 : change prescaler first + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); + // MCK=PLLCK/2 : then change source + AT91C_BASE_PMC->PMC_MCKR |= AT91C_PMC_CSS_PLL_CLK ; + while( !( AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY ) ); +} + +#endif + +//------------------------------------------------------------------------------ +// Callbacks re-implementation +//------------------------------------------------------------------------------ +//------------------------------------------------------------------------------ +/// Invoked when the USB device leaves the Suspended state. By default, +/// configures the LEDs. +//------------------------------------------------------------------------------ +void USBDCallbacks_Resumed(void) +{ + // Initialize LEDs + LED_Configure(USBD_LEDPOWER); + LED_Set(USBD_LEDPOWER); + LED_Configure(USBD_LEDUSB); + LED_Clear(USBD_LEDUSB); + USBState = STATE_RESUME; +} + +//------------------------------------------------------------------------------ +/// Invoked when the USB device gets suspended. By default, turns off all LEDs. +//------------------------------------------------------------------------------ +void USBDCallbacks_Suspended(void) +{ + // Turn off LEDs + LED_Clear(USBD_LEDPOWER); + LED_Clear(USBD_LEDUSB); + USBState = STATE_SUSPEND; +} + + +//------------------------------------------------------------------------------ +// Exported functions +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +/// Initializes the CCID driver and runs it. +/// \return Unused (ANSI-C compatibility) +//------------------------------------------------------------------------------ +int main( void ) +{ + // Initialize traces + TRACE_CONFIGURE(DBGU_STANDARD, 115200, BOARD_MCK); + printf("-- USB Device CCID Project %s --\n\r", SOFTPACK_VERSION); + printf("-- %s\n\r", BOARD_NAME); + printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__); + + // If they are present, configure Vbus & Wake-up pins + PIO_InitializeInterrupts(0); + + // Configure IT on Smart Card + ConfigureCardDetection(); + + // Configure ISO7816 driver + PIO_Configure(pinsISO7816, PIO_LISTSIZE(&pinsISO7816)); + ISO7816_Init( pinIso7816RstMC ); + + // USB audio driver initialization + CCIDDriver_Initialize(); + + // connect if needed + VBUS_CONFIGURE(); + while (USBD_GetState() < USBD_STATE_CONFIGURED); + + CCID_Insertion(); + + // Infinite loop + while (1) { + + if( USBState == STATE_SUSPEND ) { + TRACE_DEBUG("suspend !\n\r"); + LowPowerMode(); + USBState = STATE_IDLE; + } + if( USBState == STATE_RESUME ) { + // Return in normal MODE + TRACE_DEBUG("resume !\n\r"); + NormalPowerMode(); + USBState = STATE_IDLE; + } + CCID_SmartCardRequest(); + } + return 0; +} + -- cgit v1.2.3