diff options
Diffstat (limited to 'os/ports/RVCT/ARMCMx/chcore_v6m.c')
| -rw-r--r-- | os/ports/RVCT/ARMCMx/chcore_v6m.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/os/ports/RVCT/ARMCMx/chcore_v6m.c b/os/ports/RVCT/ARMCMx/chcore_v6m.c deleted file mode 100644 index d8183cdd4..000000000 --- a/os/ports/RVCT/ARMCMx/chcore_v6m.c +++ /dev/null @@ -1,128 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT 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 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file RVCT/ARMCMx/chcore_v6m.c
- * @brief ARMv6-M architecture port code.
- *
- * @addtogroup RVCT_ARMCMx_V6M_CORE
- * @{
- */
-
-#include "ch.h"
-
-/*===========================================================================*/
-/* Port interrupt handlers. */
-/*===========================================================================*/
-
-/**
- * @brief System Timer vector.
- * @details This interrupt is used as system tick.
- * @note The timer must be initialized in the startup code.
- */
-CH_IRQ_HANDLER(SysTickVector) {
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- chSysTimerHandlerI();
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-
-#if !CORTEX_ALTERNATE_SWITCH || defined(__DOXYGEN__)
-/**
- * @brief NMI vector.
- * @details The NMI vector is used for exception mode re-entering after a
- * context switch.
- */
-void NMIVector(void) {
- register struct extctx *ctxp;
- register uint32_t psp __asm("psp");
-
- /* Discarding the current exception context and positioning the stack to
- point to the real one.*/
- ctxp = (struct extctx *)psp;
- ctxp++;
- psp = (uint32_t)ctxp;
- port_unlock_from_isr();
-}
-#endif /* !CORTEX_ALTERNATE_SWITCH */
-
-#if CORTEX_ALTERNATE_SWITCH || defined(__DOXYGEN__)
-/**
- * @brief PendSV vector.
- * @details The PendSV vector is used for exception mode re-entering after a
- * context switch.
- */
-void PendSVVector(void) {
- register struct extctx *ctxp;
- register uint32_t psp __asm("psp");
-
- /* Discarding the current exception context and positioning the stack to
- point to the real one.*/
- ctxp = (struct extctx *)psp;
- ctxp++;
- psp = (uint32_t)ctxp;
-}
-#endif /* CORTEX_ALTERNATE_SWITCH */
-
-/*===========================================================================*/
-/* Port exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief IRQ epilogue code.
- *
- * @param[in] lr value of the @p LR register on ISR entry
- */
-void _port_irq_epilogue(regarm_t lr) {
-
- if (lr != (regarm_t)0xFFFFFFF1) {
- register struct extctx *ctxp;
- register uint32_t psp __asm("psp");
-
- port_lock_from_isr();
- /* Adding an artificial exception return context, there is no need to
- populate it fully.*/
- ctxp = (struct extctx *)psp;
- ctxp--;
- psp = (uint32_t)ctxp;
- ctxp->xpsr = (regarm_t)0x01000000;
-
- /* The exit sequence is different depending on if a preemption is
- required or not.*/
- if (chSchIsPreemptionRequired()) {
- /* Preemption is required we need to enforce a context switch.*/
- ctxp->pc = (regarm_t)_port_switch_from_isr;
- }
- else {
- /* Preemption not required, we just need to exit the exception
- atomically.*/
- ctxp->pc = (regarm_t)_port_exit_from_isr;
- }
-
- /* Note, returning without unlocking is intentional, this is done in
- order to keep the rest of the context switch atomic.*/
- }
-}
-
-/** @} */
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