diff options
Diffstat (limited to 'client/wolfssl/wolfcrypt/src/port/ti/ti-ccm.c')
| -rw-r--r-- | client/wolfssl/wolfcrypt/src/port/ti/ti-ccm.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/client/wolfssl/wolfcrypt/src/port/ti/ti-ccm.c b/client/wolfssl/wolfcrypt/src/port/ti/ti-ccm.c new file mode 100644 index 0000000..5c0051e --- /dev/null +++ b/client/wolfssl/wolfcrypt/src/port/ti/ti-ccm.c @@ -0,0 +1,94 @@ +/* port/ti/ti_ccm.c + * + * Copyright (C) 2006-2020 wolfSSL Inc. + * + * This file is part of wolfSSL. + * + * wolfSSL is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * wolfSSL is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA + */ + + +#ifdef HAVE_CONFIG_H + #include <config.h> +#endif + +#include <wolfssl/wolfcrypt/settings.h> + +#if defined(WOLFSSL_TI_CRYPT) || defined(WOLFSSL_TI_HASH) + +#include "wolfssl/wolfcrypt/port/ti/ti-ccm.h" +#include <stdbool.h> +#include <stdint.h> + +#ifndef TI_DUMMY_BUILD +#include "driverlib/sysctl.h" +#include "driverlib/rom_map.h" +#include "driverlib/rom.h" + +#ifndef SINGLE_THREADED +#include <wolfssl/wolfcrypt/wc_port.h> + static wolfSSL_Mutex TI_CCM_Mutex; +#endif +#endif /* TI_DUMMY_BUILD */ + +#define TIMEOUT 500000 +#define WAIT(stat) { volatile int i; for(i=0; i<TIMEOUT; i++)if(stat)break; if(i==TIMEOUT)return(false); } + +static bool ccm_init = false; +int wolfSSL_TI_CCMInit(void) +{ + if (ccm_init) + return true; + ccm_init = true; + +#ifndef TI_DUMMY_BUILD + SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | + SYSCTL_OSC_MAIN | + SYSCTL_USE_PLL | + SYSCTL_CFG_VCO_480), 120000000); + + if (!ROM_SysCtlPeripheralPresent(SYSCTL_PERIPH_CCM0)) + return false; + + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_CCM0); + WAIT(ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0)); + ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_CCM0); + WAIT(ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0)); + +#ifndef SINGLE_THREADED + if (wc_InitMutex(&TI_CCM_Mutex)) + return false; +#endif +#endif /* !TI_DUMMY_BUILD */ + + return true; +} + +#ifndef SINGLE_THREADED +void wolfSSL_TI_lockCCM(void) +{ +#ifndef TI_DUMMY_BUILD + wc_LockMutex(&TI_CCM_Mutex); +#endif +} + +void wolfSSL_TI_unlockCCM(void){ +#ifndef TI_DUMMY_BUILD + wc_UnLockMutex(&TI_CCM_Mutex); +#endif +} +#endif /* !SINGLE_THREADED */ + +#endif /* WOLFSSL_TI_CRYPT || WOLFSSL_TI_HASH */ |