mcu: MK64F12: add watchdog HAL Signed-off-by: Michael Scott <michael.sc...@linaro.org>
Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/commit/b8ee7f51 Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/b8ee7f51 Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/b8ee7f51 Branch: refs/heads/develop Commit: b8ee7f5146c692c33b58cb02268c973b92ae03f7 Parents: 5a7a49b Author: Michael Scott <michael.sc...@linaro.org> Authored: Fri Oct 7 16:39:53 2016 -0700 Committer: Michael Scott <michael.sc...@linaro.org> Committed: Mon Oct 10 23:59:41 2016 -0700 ---------------------------------------------------------------------- hw/mcu/nxp/MK64F12/src/hal_watchdog.c | 75 ++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/b8ee7f51/hw/mcu/nxp/MK64F12/src/hal_watchdog.c ---------------------------------------------------------------------- diff --git a/hw/mcu/nxp/MK64F12/src/hal_watchdog.c b/hw/mcu/nxp/MK64F12/src/hal_watchdog.c new file mode 100644 index 0000000..5e62f88 --- /dev/null +++ b/hw/mcu/nxp/MK64F12/src/hal_watchdog.c @@ -0,0 +1,75 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#include "hal/hal_watchdog.h" +#include "bsp/cmsis_nvic.h" + +#include <assert.h> + +#include "fsl_wdog.h" +#include "fsl_rcm.h" + +/* #define WATCHDOG_STUB */ + +#ifndef WATCHDOG_STUB +static WDOG_Type *wdog_base = WDOG; + +static void nxp_hal_wdt_default_handler(void) +{ + assert(0); +} + +/**@brief WDT interrupt handler. */ +static void nxp_wdt_irq_handler(void) +{ + if (WDOG_GetStatusFlags(wdog_base) && kWDOG_RunningFlag) { + WDOG_ClearStatusFlags(wdog_base, kWDOG_TimeoutFlag); + nxp_hal_wdt_default_handler(); + } +} +#endif + +int hal_watchdog_init(uint32_t expire_msecs) +{ +#ifndef WATCHDOG_STUB + wdog_config_t config; + + NVIC_SetVector(WDOG_EWM_IRQn, (uint32_t) nxp_wdt_irq_handler); + WDOG_GetDefaultConfig(&config); + config.timeoutValue = (expire_msecs * 32768ULL) / 1000; + config.enableUpdate = true; + WDOG_Init(wdog_base, &config); +#endif + + return (0); +} + +void hal_watchdog_enable(void) +{ +#ifndef WATCHDOG_STUB + WDOG_EnableInterrupts(wdog_base, kWDOG_InterruptEnable); +#endif +} + +void hal_watchdog_tickle(void) +{ +#ifndef WATCHDOG_STUB + WDOG_Refresh(wdog_base); +#endif +}
