Add more board models

1 files changed, 657 insertions, 0 deletions

diff --git a/boards/dk-tm4c129x/tdes_cbc_decrypt/tdes_cbc_decrypt.c b/boards/dk-tm4c129x/tdes_cbc_decrypt/tdes_cbc_decrypt.c
new file mode 100644
index 0000000..bcb575f
--- /dev/null
+++ b/boards/dk-tm4c129x/tdes_cbc_decrypt/tdes_cbc_decrypt.c
@@ -0,0 +1,657 @@
+//*****************************************************************************

+//

+// tdes_cbc_decrypt.c - Simple TDES CBC decryption demo.

+//

+// Copyright (c) 2013-2014 Texas Instruments Incorporated.  All rights reserved.

+// Software License Agreement

+// 

+// Texas Instruments (TI) is supplying this software for use solely and

+// exclusively on TI's microcontroller products. The software is owned by

+// TI and/or its suppliers, and is protected under applicable copyright

+// laws. You may not combine this software with "viral" open-source

+// software in order to form a larger program.

+// 

+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.

+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT

+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY

+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

+// DAMAGES, FOR ANY REASON WHATSOEVER.

+// 

+// This is part of revision 2.1.0.12573 of the DK-TM4C129X Firmware Package.

+//

+//*****************************************************************************

+

+#include <stdbool.h>

+#include <stdint.h>

+#include "inc/hw_des.h"

+#include "inc/hw_ints.h"

+#include "inc/hw_memmap.h"

+#include "driverlib/des.h"

+#include "driverlib/debug.h"

+#include "driverlib/fpu.h"

+#include "driverlib/gpio.h"

+#include "driverlib/interrupt.h"

+#include "driverlib/pin_map.h"

+#include "driverlib/rom.h"

+#include "driverlib/rom_map.h"

+#include "driverlib/sysctl.h"

+#include "driverlib/uart.h"

+#include "driverlib/udma.h"

+#include "grlib/grlib.h"

+#include "drivers/frame.h"

+#include "drivers/kentec320x240x16_ssd2119.h"

+#include "drivers/pinout.h"

+#include "utils/uartstdio.h"

+

+//*****************************************************************************

+//

+//! \addtogroup example_list

+//! <h1>TDES CBC Decryption Demo (tdes_cbc_decrypt)</h1>

+//!

+//! Simple demo showing an decryption operation using the DES module with

+//! triple DES in CBC mode.  A single block of data is decrypted at a time.

+//! The module is also capable of performing in DES mode, but this has been

+//! proven to be cryptographically insecure.  CBC mode is also not recommended

+//! because it will always produce the same ciphertext for a block of

+//! plaintext.  CBC and CFB modes are recommended instead.

+//!

+//! Please note that the use of interrupts and uDMA is not required for the

+//! operation of the module.  It is only done for demonstration purposes.

+//

+//*****************************************************************************

+

+//*****************************************************************************

+//

+// Configuration defines.

+//

+//*****************************************************************************

+#define CCM_LOOP_TIMEOUT        500000

+

+//*****************************************************************************

+//

+// The DMA control structure table.

+//

+//*****************************************************************************

+#if defined(ewarm)

+#pragma data_alignment=1024

+tDMAControlTable g_psDMAControlTable[64];

+#elif defined(ccs)

+#pragma DATA_ALIGN(g_psDMAControlTable, 1024)

+tDMAControlTable g_psDMAControlTable[64];

+#else

+tDMAControlTable g_psDMAControlTable[64] __attribute__((aligned(1024)));

+#endif

+

+//*****************************************************************************

+//

+// Triple DES test vector.

+// The plaintext is from the AES example. The key was randomly generated.

+// The resulting ciphertext was then generated using a Perl script with the

+// Crypt::DES_EDE3 module.

+//

+//*****************************************************************************

+uint32_t g_pui32TDESPlainText[16] =

+{

+    0xe2bec16b, 0x969f402e, 0x117e3de9, 0x2a179373,

+    0x578a2dae, 0x9cac031e, 0xac6fb79e, 0x518eaf45,

+    0x461cc830, 0x11e45ca3, 0x19c1fbe5, 0xef520a1a,

+    0x45249ff6, 0x179b4fdf, 0x7b412bad, 0x10376ce6

+};

+

+uint32_t g_pui32TDESKey[6] =

+{

+    0xc7f51c87, 0x8076211f, 0x5de5c871, 0xa243cf7e,

+    0xd25fdb75, 0xad73068f

+};

+

+uint32_t g_pui32TDESIV[2] =

+{

+    0x6d8ecac4, 0x3b27c885

+};

+

+uint32_t g_pui32TDESCipherText[16] =

+{

+    0x24c69385, 0xb338be54, 0x6eeeb276, 0x1a952b4e,

+    0x7242ce4b, 0x9ec147cf, 0x765916ee, 0x3d25e685,

+    0xfe5865b4, 0xf2238cb8, 0x2a5b68d5, 0x0f79a41a,

+    0x6f4a7601, 0x7a57235f, 0xce84d08a, 0x1a34d011

+};

+

+//*****************************************************************************

+//

+// The error routine that is called if the driver library encounters an error.

+//

+//*****************************************************************************

+#ifdef DEBUG

+void

+__error__(char *pcFilename, uint32_t ui32Line)

+{

+}

+#endif

+

+//*****************************************************************************

+//

+// Round up length to nearest 8 byte boundary.  This is needed because all

+// two data registers must be written at once.  This is handled in the DES

+// driver, but if using uDMA, the length must rounded up.

+//

+//*****************************************************************************

+uint32_t

+LengthRoundUp(uint32_t ui32Length)

+{

+    uint32_t ui32Remainder;

+

+    ui32Remainder = ui32Length % 8;

+    if(ui32Remainder == 0)

+    {

+        return(ui32Length);

+    }

+    else

+    {

+        return(ui32Length + (8 - ui32Remainder));

+    }

+}

+

+//*****************************************************************************

+//

+// The TDES interrupt handler and interrupt flags.

+//

+//*****************************************************************************

+static volatile bool g_bContextInIntFlag;

+static volatile bool g_bDataInIntFlag;

+static volatile bool g_bDataOutIntFlag;

+static volatile bool g_bContextInDMADoneIntFlag;

+static volatile bool g_bDataInDMADoneIntFlag;

+static volatile bool g_bDataOutDMADoneIntFlag;

+

+void

+TDESIntHandler(void)

+{

+    uint32_t ui32IntStatus;

+

+    //

+    // Read the DES masked interrupt status.

+    //

+    ui32IntStatus = ROM_DESIntStatus(DES_BASE, true);

+

+    //

+    // Print a different message depending on the interrupt source.

+    //

+    if(ui32IntStatus & DES_INT_CONTEXT_IN)

+    {

+        ROM_DESIntDisable(DES_BASE, DES_INT_CONTEXT_IN);

+        g_bContextInIntFlag = true;

+        UARTprintf(" Context input registers are ready.\n");

+    }

+    if(ui32IntStatus & DES_INT_DATA_IN)

+    {

+        ROM_DESIntDisable(DES_BASE, DES_INT_DATA_IN);

+        g_bDataInIntFlag = true;

+        UARTprintf(" Data FIFO is ready to receive data.\n");

+    }

+    if(ui32IntStatus & DES_INT_DATA_OUT)

+    {

+        ROM_DESIntDisable(DES_BASE, DES_INT_DATA_OUT);

+        g_bDataOutIntFlag = true;

+        UARTprintf(" Data FIFO is ready to provide data.\n");

+    }

+    if(ui32IntStatus & DES_INT_DMA_CONTEXT_IN)

+    {

+        ROM_DESIntClear(DES_BASE, DES_INT_DMA_CONTEXT_IN);

+        g_bContextInDMADoneIntFlag = true;

+        UARTprintf(" DMA completed a context write to the internal\n");

+        UARTprintf(" registers.\n");

+    }

+    if(ui32IntStatus & DES_INT_DMA_DATA_IN)

+    {

+        ROM_DESIntClear(DES_BASE, DES_INT_DMA_DATA_IN);

+        g_bDataInDMADoneIntFlag = true;

+        UARTprintf(" DMA has written the last word of input data to\n");

+        UARTprintf(" the internal FIFO of the engine.\n");

+    }

+    if(ui32IntStatus & DES_INT_DMA_DATA_OUT)

+    {

+        ROM_DESIntClear(DES_BASE, DES_INT_DMA_DATA_OUT);

+        g_bDataOutDMADoneIntFlag = true;

+        UARTprintf(" DMA has written the last word of process result.\n");

+    }

+}

+

+//*****************************************************************************

+//

+// Perform an decryption operation.

+//

+//*****************************************************************************

+bool

+TDESCBCDecrypt(uint32_t *pui32Src, uint32_t *pui32Dst, uint32_t *pui32Key,

+                 uint32_t ui32Length, uint32_t *pui32IV, bool bUseDMA)

+{

+    //

+    // Perform a soft reset.

+    //

+    ROM_DESReset(DES_BASE);

+

+    //

+    // Clear the interrupt flags.

+    //

+    g_bContextInIntFlag = false;

+    g_bDataInIntFlag = false;

+    g_bDataOutIntFlag = false;

+    g_bContextInDMADoneIntFlag = false;

+    g_bDataInDMADoneIntFlag = false;

+    g_bDataOutDMADoneIntFlag = false;

+

+    //

+    // Enable all interrupts.

+    //

+    ROM_DESIntEnable(DES_BASE, (DES_INT_CONTEXT_IN |

+                                DES_INT_DATA_IN | DES_INT_DATA_OUT));

+

+    //

+    // Configure the DES module.

+    //

+    ROM_DESConfigSet(DES_BASE, (DES_CFG_DIR_DECRYPT | DES_CFG_TRIPLE |

+                                DES_CFG_MODE_CBC));

+

+    //

+    // Write the key.

+    //

+    ROM_DESKeySet(DES_BASE, pui32Key);

+

+    //

+    // Write the IV.

+    //

+    ROM_DESIVSet(DES_BASE, pui32IV);

+

+    //

+    // Depending on the argument, perform the decryption

+    // with or without uDMA.

+    //

+    if(bUseDMA)

+    {

+        //

+        // Enable DMA interrupts.

+        //

+        ROM_DESIntEnable(DES_BASE, (DES_INT_DMA_CONTEXT_IN |

+                                    DES_INT_DMA_DATA_IN |

+                                    DES_INT_DMA_DATA_OUT));

+

+        //

+        // Setup the DMA module to copy data in.

+        //

+        ROM_uDMAChannelAssign(UDMA_CH21_DES0DIN);

+        ROM_uDMAChannelAttributeDisable(UDMA_CH21_DES0DIN,

+                                        UDMA_ATTR_ALTSELECT |

+                                        UDMA_ATTR_USEBURST |

+                                        UDMA_ATTR_HIGH_PRIORITY |

+                                        UDMA_ATTR_REQMASK);

+        ROM_uDMAChannelControlSet(UDMA_CH21_DES0DIN | UDMA_PRI_SELECT,

+                                  UDMA_SIZE_32 | UDMA_SRC_INC_32 |

+                                  UDMA_DST_INC_NONE | UDMA_ARB_2 |

+                                  UDMA_DST_PROT_PRIV);

+        ROM_uDMAChannelTransferSet(UDMA_CH21_DES0DIN | UDMA_PRI_SELECT,

+                                   UDMA_MODE_BASIC, (void *)pui32Src,

+                                   (void *)(DES_BASE + DES_O_DATA_L),

+                                   LengthRoundUp(ui32Length) / 4);

+        UARTprintf("Data in DMA request enabled.\n");

+

+        //

+        // Setup the DMA module to copy the data out.

+        //

+        ROM_uDMAChannelAssign(UDMA_CH22_DES0DOUT);

+        ROM_uDMAChannelAttributeDisable(UDMA_CH22_DES0DOUT,

+                                        UDMA_ATTR_ALTSELECT |

+                                        UDMA_ATTR_USEBURST |

+                                        UDMA_ATTR_HIGH_PRIORITY |

+                                        UDMA_ATTR_REQMASK);

+        ROM_uDMAChannelControlSet(UDMA_CH22_DES0DOUT | UDMA_PRI_SELECT,

+                                  UDMA_SIZE_32 | UDMA_SRC_INC_NONE |

+                                  UDMA_DST_INC_32 | UDMA_ARB_2 |

+                                  UDMA_SRC_PROT_PRIV);

+        ROM_uDMAChannelTransferSet(UDMA_CH22_DES0DOUT | UDMA_PRI_SELECT,

+                                   UDMA_MODE_BASIC,

+                                   (void *)(DES_BASE + DES_O_DATA_L),

+                                   (void *)pui32Dst,

+                                   LengthRoundUp(ui32Length) / 4);

+        UARTprintf("Data out DMA request enabled.\n");

+

+        //

+        // Enable DMA requests

+        //

+        ROM_DESDMAEnable(DES_BASE, DES_DMA_DATA_IN | DES_DMA_DATA_OUT);

+

+        //

+        // Write the length registers to start the process.

+        //

+        ROM_DESLengthSet(DES_BASE, ui32Length);

+

+        //

+        // Enable the DMA channels to start the transfers.  This must be done after

+        // writing the length to prevent data from copying before the context is

+        // truly ready.

+        //

+        ROM_uDMAChannelEnable(UDMA_CH21_DES0DIN);

+        ROM_uDMAChannelEnable(UDMA_CH22_DES0DOUT);

+

+        //

+        // Wait for the data in DMA done interrupt.

+        //

+        while(!g_bDataInDMADoneIntFlag)

+        {

+        }

+

+        //

+        // Wait for the data out DMA done interrupt.

+        //

+        while(!g_bDataOutDMADoneIntFlag)

+        {

+        }

+    }

+    else

+    {

+        //

+        // Perform the decryption.

+        //

+        ROM_DESDataProcess(DES_BASE, pui32Src, pui32Dst, ui32Length);

+    }

+

+    return(true);

+}

+

+//*****************************************************************************

+//

+// Initialize the DES and CCM modules.

+//

+//*****************************************************************************

+bool

+DESInit(void)

+{

+    uint32_t ui32Loop;

+

+    //

+    // Check that the CCM peripheral is present.

+    //

+    if(!ROM_SysCtlPeripheralPresent(SYSCTL_PERIPH_CCM0))

+    {

+        UARTprintf("No CCM peripheral found!\n");

+

+        //

+        // Return failure.

+        //

+        return(false);

+    }

+

+    //

+    // The hardware is available, enable it.

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_CCM0);

+

+    //

+    // Wait for the peripheral to be ready.

+    //

+    ui32Loop = 0;

+    while(!ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0))

+    {

+        //

+        // Increment our poll counter.

+        //

+        ui32Loop++;

+

+        if(ui32Loop > CCM_LOOP_TIMEOUT)

+        {

+            //

+            // Timed out, notify and spin.

+            //

+            UARTprintf("Time out on CCM ready after enable.\n");

+

+            //

+            // Return failure.

+            //

+            return(false);

+        }

+    }

+

+    //

+    // Reset the peripheral to ensure we are starting from a known condition.

+    //

+    ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_CCM0);

+

+    //

+    // Wait for the peripheral to be ready again.

+    //

+    ui32Loop = 0;

+    while(!ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0))

+    {

+        //

+        // Increment our poll counter.

+        //

+        ui32Loop++;

+

+        if(ui32Loop > CCM_LOOP_TIMEOUT)

+        {

+            //

+            // Timed out, spin.

+            //

+            UARTprintf("Time out on CCM ready after reset.\n");

+

+            //

+            // Return failure.

+            //

+            return(false);

+        }

+    }

+

+    //

+    // Return initialization success.

+    //

+    return(true);

+}

+

+//*****************************************************************************

+//

+// Configure the UART and its pins.  This must be called before UARTprintf().

+//

+//*****************************************************************************

+void

+ConfigureUART(void)

+{

+    //

+    // Enable the GPIO Peripheral used by the UART.

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);

+

+    //

+    // Enable UART0

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);

+

+    //

+    // Configure GPIO Pins for UART mode.

+    //

+    ROM_GPIOPinConfigure(GPIO_PA0_U0RX);

+    ROM_GPIOPinConfigure(GPIO_PA1_U0TX);

+    ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);

+

+    //

+    // Use the internal 16MHz oscillator as the UART clock source.

+    //

+    ROM_UARTClockSourceSet(UART0_BASE, UART_CLOCK_PIOSC);

+

+    //

+    // Initialize the UART for console I/O.

+    //

+    UARTStdioConfig(0, 115200, 16000000);

+}

+

+//*****************************************************************************

+//

+// This example decrypts blocks of plaintext using TDES in CBC mode.  It

+// does the decryption first without uDMA and then with uDMA.  The results

+// are checked after each operation.

+//

+//*****************************************************************************

+int

+main(void)

+{

+    uint32_t pui32PlainText[16], ui32Errors, ui32Idx, ui32SysClock;

+    tContext sContext;

+

+    //

+    // Run from the PLL at 120 MHz.

+    //

+    ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |

+                                           SYSCTL_OSC_MAIN | SYSCTL_USE_PLL |

+                                           SYSCTL_CFG_VCO_480), 120000000);

+

+    //

+    // Configure the device pins.

+    //

+    PinoutSet();

+

+    //

+    // Initialize the display driver.

+    //

+    Kentec320x240x16_SSD2119Init(ui32SysClock);

+

+    //

+    // Initialize the graphics context.

+    //

+    GrContextInit(&sContext, &g_sKentec320x240x16_SSD2119);

+

+    //

+    // Draw the application frame.

+    //

+    FrameDraw(&sContext, "tdes-cbc-decrypt");

+

+    //

+    // Show some instructions on the display

+    //

+    GrContextFontSet(&sContext, g_psFontCm20);

+    GrContextForegroundSet(&sContext, ClrWhite);

+    GrStringDrawCentered(&sContext, "Connect a terminal to", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 60, false);

+    GrStringDrawCentered(&sContext, "UART0 (115200,N,8,1)", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 80, false);

+    GrStringDrawCentered(&sContext, "for more information.", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 100, false);

+

+    //

+    // Initialize local variables.

+    //

+    ui32Errors = 0;

+    for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)

+    {

+        pui32PlainText[ui32Idx] = 0;

+    }

+

+    //

+    // Enable stacking for interrupt handlers.  This allows floating-point

+    // instructions to be used within interrupt handlers, but at the expense of

+    // extra stack usage.

+    //

+    ROM_FPUStackingEnable();

+

+    //

+    // Enable DES interrupts.

+    //

+    ROM_IntEnable(INT_DES0);

+

+    //

+    // Enable debug output on UART0 and print a welcome message.

+    //

+    ConfigureUART();

+    UARTprintf("Starting TDES CBC decryption demo.\n");

+    GrStringDrawCentered(&sContext, "Starting demo...", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 140, false);

+

+    //

+    // Enable the uDMA module.

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA);

+

+    //

+    // Setup the control table.

+    //

+    ROM_uDMAEnable();

+    ROM_uDMAControlBaseSet(g_psDMAControlTable);

+

+    //

+    // Initialize the CCM and DES modules.

+    //

+    if(!DESInit())

+    {

+        UARTprintf("Initialization of the DES module failed.\n");

+        ui32Errors |= 0x00000001;

+    }

+

+    //

+    // Perform the decryption without uDMA.

+    //

+    UARTprintf("Performing decryption without uDMA.\n");

+    TDESCBCDecrypt(g_pui32TDESCipherText, pui32PlainText, g_pui32TDESKey,

+                   64, g_pui32TDESIV, false);

+

+    //

+    // Check the result.

+    //

+    for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)

+    {

+        if(pui32PlainText[ui32Idx] != g_pui32TDESPlainText[ui32Idx])

+        {

+            UARTprintf("Plaintext mismatch on word %d. Exp: 0x%x, Act: "

+                       "0x%x\n", ui32Idx, g_pui32TDESPlainText[ui32Idx],

+                       pui32PlainText[ui32Idx]);

+            ui32Errors |= (ui32Idx << 16) | 0x00000002;

+        }

+    }

+

+    //

+    // Clear the array containing the plaintext.

+    //

+    for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)

+    {

+        pui32PlainText[ui32Idx] = 0;

+    }

+

+    //

+    // Perform the decryption with uDMA.

+    //

+    UARTprintf("Performing decryption with uDMA.\n");

+    TDESCBCDecrypt(g_pui32TDESCipherText, pui32PlainText, g_pui32TDESKey,

+                   64, g_pui32TDESIV, true);

+

+    //

+    // Check the result.

+    //

+    for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)

+    {

+        if(pui32PlainText[ui32Idx] != g_pui32TDESPlainText[ui32Idx])

+        {

+            UARTprintf("Plaintext mismatch on word %d. Exp: 0x%x, Act: "

+                       "0x%x\n", ui32Idx, g_pui32TDESPlainText[ui32Idx],

+                       pui32PlainText[ui32Idx]);

+            ui32Errors |= (ui32Idx << 16) | 0x00000004;

+        }

+    }

+

+    //

+    // Finished.

+    //

+    if(ui32Errors)

+    {

+        UARTprintf("Demo failed with error code 0x%x.\n", ui32Errors);

+        GrStringDrawCentered(&sContext, "Demo failed.", -1,

+                             GrContextDpyWidthGet(&sContext) / 2, 180, false);

+    }

+    else

+    {

+        UARTprintf("Demo completed successfully.\n");

+        GrStringDrawCentered(&sContext, "Demo passed.", -1,

+                             GrContextDpyWidthGet(&sContext) / 2, 180, false);

+    }

+

+    while(1)

+    {

+    }

+}