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author | Giovanni Di Sirio <gdisirio@gmail.com> | 2015-12-03 13:49:06 +0000 |
---|---|---|
committer | Giovanni Di Sirio <gdisirio@gmail.com> | 2015-12-03 13:49:06 +0000 |
commit | 304c76dddd3f2a84062588c434c034d83f82fa52 (patch) | |
tree | f3a86a734b76dd6b8084abe4ac0fa15447b47f3c /os/hal/ports/STM32 | |
parent | 69492747606d30c64b7719172d4a5ec804421b99 (diff) | |
download | ChibiOS-304c76dddd3f2a84062588c434c034d83f82fa52.tar.gz ChibiOS-304c76dddd3f2a84062588c434c034d83f82fa52.tar.bz2 ChibiOS-304c76dddd3f2a84062588c434c034d83f82fa52.zip |
Added watchdog driver model (WDG), to be completed and tested.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8555 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports/STM32')
-rw-r--r-- | os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c | 126 | ||||
-rw-r--r-- | os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.h | 176 | ||||
-rw-r--r-- | os/hal/ports/STM32/STM32F3xx/platform.mk | 9 |
3 files changed, 309 insertions, 2 deletions
diff --git a/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c b/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c new file mode 100644 index 000000000..bdcfb383a --- /dev/null +++ b/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c @@ -0,0 +1,126 @@ +/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+ Licensed 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.
+*/
+
+/**
+ * @file templates/wdg_lld.c
+ * @brief WDG Driver subsystem low level driver source.
+ *
+ * @addtogroup WDG
+ * @{
+ */
+
+#include "hal.h"
+
+#if HAL_USE_WDG || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+#define KR_KEY_RELOAD 0xAAAAU
+#define KR_KEY_ENABLE 0xCCCCU
+#define KR_KEY_WRITE 0x5555U
+#define KR_KEY_PROTECT 0x0000U
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+#if STM32_WDG_USE_IWDG || defined(__DOXYGEN__)
+WDGDriver WDGD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level WDG driver initialization.
+ *
+ * @notapi
+ */
+void wdg_lld_init(void) {
+
+#if STM32_WDG_USE_IWDG
+ WDGD1.state = WDG_STOP;
+ WDGD1.wdg = IWDG;
+#endif
+}
+
+/**
+ * @brief Configures and activates the WDG peripheral.
+ *
+ * @param[in] wdgp pointer to the @p WDGDriver object
+ *
+ * @notapi
+ */
+void wdg_lld_start(WDGDriver *wdgp) {
+
+ /* Unlock IWDG.*/
+ wdgp->wdg->KR = KR_KEY_WRITE;
+
+ /* Write configuration.*/
+ wdgp->wdg->PR = wdgp->config->pr;
+ wdgp->wdg->RLR = wdgp->config->rlr;
+ wdgp->wdg->WINR = wdgp->config->winr;
+ while (wdgp->wdg->SR != 0)
+ ;
+
+ /* Start operations.*/
+ wdgp->wdg->KR = KR_KEY_RELOAD;
+ wdgp->wdg->KR = KR_KEY_ENABLE;
+}
+
+/**
+ * @brief Deactivates the WDG peripheral.
+ *
+ * @param[in] wdgp pointer to the @p WDGDriver object
+ *
+ * @api
+ */
+void wdg_lld_stop(WDGDriver *wdgp) {
+
+ osalDbgAssert(wdgp->state == WDG_STOP,
+ "IWDG cannot be stopped once activated");
+}
+
+/**
+ * @brief Reloads WDG's counter.
+ *
+ * @param[in] idwgp pointer to the @p WDGDriver object
+ *
+ * @notapi
+ */
+void wdg_lld_reset(WDGDriver * wdgp) {
+
+ wdgp->wdg->KR = KR_KEY_RELOAD;
+}
+
+#endif /* HAL_USE_WDG */
+
+/** @} */
diff --git a/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.h b/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.h new file mode 100644 index 000000000..ba8accfe5 --- /dev/null +++ b/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.h @@ -0,0 +1,176 @@ +/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+ Licensed 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.
+*/
+
+/**
+ * @file wdg_lld.h
+ * @brief WDG Driver subsystem low level driver header.
+ *
+ * @addtogroup WDG
+ * @{
+ */
+
+#ifndef _WDG_LLD_H_
+#define _WDG_LLD_H_
+
+#if HAL_USE_WDG || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @name RLR register definitions
+ * @{
+ */
+#define STM32_IWDG_RL_MASK (0x00000FFF << 0)
+#define STM32_IWDG_RL(n) ((n) << 0)
+/** @} */
+
+/**
+ * @name PR register definitions
+ * @{
+ */
+#define STM32_IWDG_PR_MASK (7 << 0)
+#define STM32_IWDG_PR_4 0U
+#define STM32_IWDG_PR_8 1U
+#define STM32_IWDG_PR_16 2U
+#define STM32_IWDG_PR_32 3U
+#define STM32_IWDG_PR_64 4U
+#define STM32_IWDG_PR_128 5U
+#define STM32_IWDG_PR_256 6U
+/** @} */
+
+/**
+ * @name WINR register definitions
+ * @{
+ */
+#define STM32_IWDG_WIN_MASK (0x00000FFF << 0)
+#define STM32_IWDG_WIN(n) ((n) << 0)
+#define STM32_IWDG_WIN_DISABLED STM32_IWDG_WIN(0x00000FFF)
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief IWDG driver enable switch.
+ * @details If set to @p TRUE the support for IWDG is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(STM32_WDG_USE_IWDG) || defined(__DOXYGEN__)
+#define STM32_WDG_USE_IWDG FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if !STM32_WDG_USE_IWDG
+#error "WDG driver activated but no xWDG peripheral assigned"
+#endif
+
+#if !defined(STM32_LSI_ENABLED)
+#error "STM32_LSI_ENABLED not defined"
+#endif
+
+#if STM32_LSI_ENABLED == FALSE
+#error "IWDG requires LSI clock"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of a structure representing an WDG driver.
+ */
+typedef struct WDGDriver WDGDriver;
+
+/**
+ * @brief Driver configuration structure.
+ * @note It could be empty on some architectures.
+ */
+typedef struct {
+ /**
+ * @brief Configuration of the IWDG_PR register.
+ * @details See the STM32 reference manual for details.
+ */
+ uint8_t pr;
+ /**
+ * @brief Configuration of the IWDG_RLR register.
+ * @details See the STM32 reference manual for details.
+ */
+ uint16_t rlr;
+ /**
+ * @brief Configuration of the IWDG_WINR register.
+ * @details See the STM32 reference manual for details.
+ */
+ uint16_t winr;
+} WDGConfig;
+
+/**
+ * @brief Structure representing an WDG driver.
+ */
+struct WDGDriver {
+ /**
+ * @brief Driver state.
+ */
+ wdgstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const WDGConfig *config;
+ /* End of the mandatory fields.*/
+ /**
+ * @brief Pointer to the IWDG registers block.
+ */
+ IWDG_TypeDef *wdg;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if STM32_WDG_USE_IWDG && !defined(__DOXYGEN__)
+extern WDGDriver WDGD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void wdg_lld_init(void);
+ void wdg_lld_start(WDGDriver *wdgp);
+ void wdg_lld_stop(WDGDriver *wdgp);
+ void wdg_lld_reset(WDGDriver *wdgp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_WDG */
+
+#endif /* _WDG_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/ports/STM32/STM32F3xx/platform.mk b/os/hal/ports/STM32/STM32F3xx/platform.mk index 78fbaaa4c..43fff73c7 100644 --- a/os/hal/ports/STM32/STM32F3xx/platform.mk +++ b/os/hal/ports/STM32/STM32F3xx/platform.mk @@ -49,6 +49,9 @@ endif ifneq ($(findstring HAL_USE_USB TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1/usb_lld.c
endif
+ifneq ($(findstring HAL_USE_WDG TRUE,$(HALCONF)),)
+PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c
+endif
else
PLATFORMSRC := $(CHIBIOS)/os/hal/ports/common/ARMCMx/nvic.c \
$(CHIBIOS)/os/hal/ports/STM32/STM32F3xx/hal_lld.c \
@@ -68,7 +71,8 @@ PLATFORMSRC := $(CHIBIOS)/os/hal/ports/common/ARMCMx/nvic.c \ $(CHIBIOS)/os/hal/ports/STM32/LLD/TIMv1/st_lld.c \
$(CHIBIOS)/os/hal/ports/STM32/LLD/USARTv2/serial_lld.c \
$(CHIBIOS)/os/hal/ports/STM32/LLD/USARTv2/uart_lld.c \
- $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1/usb_lld.c
+ $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1/usb_lld.c \
+ $(CHIBIOS)/os/hal/ports/STM32/LLD/xWDGv1/wdg_lld.c
endif
# Required include directories
@@ -84,4 +88,5 @@ PLATFORMINC := $(CHIBIOS)/os/hal/ports/common/ARMCMx \ $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2 \
$(CHIBIOS)/os/hal/ports/STM32/LLD/TIMv1 \
$(CHIBIOS)/os/hal/ports/STM32/LLD/USARTv2 \
- $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1
+ $(CHIBIOS)/os/hal/ports/STM32/LLD/USBv1 \
+ $(CHIBIOS)/os/hal/ports/STM32/LLD/xWDGv1
|