diff options
| -rw-r--r-- | demos/ARMCM4-STM32F303-DISCOVERY/halconf.h | 2 | ||||
| -rw-r--r-- | os/hal/hal.mk | 1 | ||||
| -rw-r--r-- | os/hal/include/ext.h | 154 | ||||
| -rw-r--r-- | os/hal/include/hal.h | 2 | ||||
| -rw-r--r-- | os/hal/platforms/STM32/ext_lld.c | 1 | ||||
| -rw-r--r-- | os/hal/platforms/STM32F30x/ext_lld_isr.c | 136 | ||||
| -rw-r--r-- | os/hal/src/ext.c | 204 |
7 files changed, 421 insertions, 79 deletions
diff --git a/demos/ARMCM4-STM32F303-DISCOVERY/halconf.h b/demos/ARMCM4-STM32F303-DISCOVERY/halconf.h index 73aad1e62..6e6b0d0c9 100644 --- a/demos/ARMCM4-STM32F303-DISCOVERY/halconf.h +++ b/demos/ARMCM4-STM32F303-DISCOVERY/halconf.h @@ -55,7 +55,7 @@ * @brief Enables the EXT subsystem.
*/
#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
-#define HAL_USE_EXT FALSE
+#define HAL_USE_EXT TRUE
#endif
/**
diff --git a/os/hal/hal.mk b/os/hal/hal.mk index 5c2f6df75..9bccee1e1 100644 --- a/os/hal/hal.mk +++ b/os/hal/hal.mk @@ -4,6 +4,7 @@ HALSRC = ${CHIBIOS}/os/hal/src/hal.c \ ${CHIBIOS}/os/hal/src/hal_queues.c \
${CHIBIOS}/os/hal/src/adc.c \
${CHIBIOS}/os/hal/src/can.c \
+ ${CHIBIOS}/os/hal/src/ext.c \
${CHIBIOS}/os/hal/src/gpt.c \
${CHIBIOS}/os/hal/src/icu.c \
${CHIBIOS}/os/hal/src/pal.c \
diff --git a/os/hal/include/ext.h b/os/hal/include/ext.h new file mode 100644 index 000000000..89dc59df8 --- /dev/null +++ b/os/hal/include/ext.h @@ -0,0 +1,154 @@ +/*
+ 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 ext.h
+ * @brief EXT Driver macros and structures.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef _EXT_H_
+#define _EXT_H_
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @name EXT channel modes
+ * @{
+ */
+#define EXT_CH_MODE_EDGES_MASK 3 /**< @brief Mask of edges field. */
+#define EXT_CH_MODE_DISABLED 0 /**< @brief Channel disabled. */
+#define EXT_CH_MODE_RISING_EDGE 1 /**< @brief Rising edge callback. */
+#define EXT_CH_MODE_FALLING_EDGE 2 /**< @brief Falling edge callback. */
+#define EXT_CH_MODE_BOTH_EDGES 3 /**< @brief Both edges callback. */
+
+#define EXT_CH_MODE_AUTOSTART 4 /**< @brief Channel started
+ automatically on driver start. */
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Driver state machine possible states.
+ */
+typedef enum {
+ EXT_UNINIT = 0, /**< Not initialized. */
+ EXT_STOP = 1, /**< Stopped. */
+ EXT_ACTIVE = 2, /**< Active. */
+} extstate_t;
+
+/**
+ * @brief Type of a structure representing a EXT driver.
+ */
+typedef struct EXTDriver EXTDriver;
+
+#include "ext_lld.h"
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @name Macro Functions
+ * @{
+ */
+/**
+ * @brief Enables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be enabled
+ *
+ * @iclass
+ */
+#define extChannelEnableI(extp, channel) ext_lld_channel_enable(extp, channel)
+
+/**
+ * @brief Disables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be disabled
+ *
+ * @iclass
+ */
+#define extChannelDisableI(extp, channel) ext_lld_channel_disable(extp, channel)
+
+/**
+ * @brief Changes the operation mode of a channel.
+ * @note This function attempts to write over the current configuration
+ * structure that must have been not declared constant. This
+ * violates the @p const qualifier in @p extStart() but it is
+ * intentional. This function cannot be used if the configuration
+ * structure is declared @p const.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be changed
+ * @param[in] extcp new configuration for the channel
+ *
+ * @api
+ */
+#define extSetChannelMode(extp, channel, extcp) { \
+ osalSysLock(); \
+ extSetChannelModeI(extp, channel, extcp); \
+ osalSysUnlock(); \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void extInit(void);
+ void extObjectInit(EXTDriver *extp);
+ void extStart(EXTDriver *extp, const EXTConfig *config);
+ void extStop(EXTDriver *extp);
+ void extChannelEnable(EXTDriver *extp, expchannel_t channel);
+ void extChannelDisable(EXTDriver *extp, expchannel_t channel);
+ void extSetChannelModeI(EXTDriver *extp,
+ expchannel_t channel,
+ const EXTChannelConfig *extcp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* _EXT_H_ */
+
+/** @} */
diff --git a/os/hal/include/hal.h b/os/hal/include/hal.h index 883bf310f..81cf25571 100644 --- a/os/hal/include/hal.h +++ b/os/hal/include/hal.h @@ -48,7 +48,7 @@ #include "pal.h"
#include "adc.h"
#include "can.h"
-//#include "ext.h"
+#include "ext.h"
#include "gpt.h"
//#include "i2c.h"
#include "icu.h"
diff --git a/os/hal/platforms/STM32/ext_lld.c b/os/hal/platforms/STM32/ext_lld.c index 970e0ce8e..80b222124 100644 --- a/os/hal/platforms/STM32/ext_lld.c +++ b/os/hal/platforms/STM32/ext_lld.c @@ -22,7 +22,6 @@ * @{
*/
-#include "ch.h"
#include "hal.h"
#if HAL_USE_EXT || defined(__DOXYGEN__)
diff --git a/os/hal/platforms/STM32F30x/ext_lld_isr.c b/os/hal/platforms/STM32F30x/ext_lld_isr.c index c9802713e..08af37b19 100644 --- a/os/hal/platforms/STM32F30x/ext_lld_isr.c +++ b/os/hal/platforms/STM32F30x/ext_lld_isr.c @@ -22,7 +22,6 @@ * @{
*/
-#include "ch.h"
#include "hal.h"
#if HAL_USE_EXT || defined(__DOXYGEN__)
@@ -55,14 +54,14 @@ *
* @isr
*/
-CH_IRQ_HANDLER(Vector58) {
+OSAL_IRQ_HANDLER(Vector58) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 0);
EXTD1.config->channels[0].cb(&EXTD1, 0);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -72,14 +71,14 @@ CH_IRQ_HANDLER(Vector58) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector5C) {
+OSAL_IRQ_HANDLER(Vector5C) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 1);
EXTD1.config->channels[1].cb(&EXTD1, 1);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -89,14 +88,14 @@ CH_IRQ_HANDLER(Vector5C) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector60) {
+OSAL_IRQ_HANDLER(Vector60) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 2);
EXTD1.config->channels[2].cb(&EXTD1, 2);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -106,14 +105,14 @@ CH_IRQ_HANDLER(Vector60) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector64) {
+OSAL_IRQ_HANDLER(Vector64) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 3);
EXTD1.config->channels[3].cb(&EXTD1, 3);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -123,14 +122,14 @@ CH_IRQ_HANDLER(Vector64) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector68) {
+OSAL_IRQ_HANDLER(Vector68) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 4);
EXTD1.config->channels[4].cb(&EXTD1, 4);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -140,10 +139,10 @@ CH_IRQ_HANDLER(Vector68) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector9C) {
+OSAL_IRQ_HANDLER(Vector9C) {
uint32_t pr;
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & ((1 << 5) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9));
EXTI->PR = pr;
@@ -158,7 +157,7 @@ CH_IRQ_HANDLER(Vector9C) { if (pr & (1 << 9))
EXTD1.config->channels[9].cb(&EXTD1, 9);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -168,10 +167,10 @@ CH_IRQ_HANDLER(Vector9C) { *
* @isr
*/
-CH_IRQ_HANDLER(VectorE0) {
+OSAL_IRQ_HANDLER(VectorE0) {
uint32_t pr;
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & ((1 << 10) | (1 << 11) | (1 << 12) | (1 << 13) | (1 << 14) |
(1 << 15));
@@ -189,7 +188,7 @@ CH_IRQ_HANDLER(VectorE0) { if (pr & (1 << 15))
EXTD1.config->channels[15].cb(&EXTD1, 15);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -199,14 +198,14 @@ CH_IRQ_HANDLER(VectorE0) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector44) {
+OSAL_IRQ_HANDLER(Vector44) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 16);
EXTD1.config->channels[16].cb(&EXTD1, 16);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -216,14 +215,14 @@ CH_IRQ_HANDLER(Vector44) { *
* @isr
*/
-CH_IRQ_HANDLER(VectorE4) {
+OSAL_IRQ_HANDLER(VectorE4) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 17);
EXTD1.config->channels[17].cb(&EXTD1, 17);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -233,14 +232,14 @@ CH_IRQ_HANDLER(VectorE4) { *
* @isr
*/
-CH_IRQ_HANDLER(VectorE8) {
+OSAL_IRQ_HANDLER(VectorE8) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 18);
EXTD1.config->channels[18].cb(&EXTD1, 18);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -250,14 +249,14 @@ CH_IRQ_HANDLER(VectorE8) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector48) {
+OSAL_IRQ_HANDLER(Vector48) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 19);
EXTD1.config->channels[19].cb(&EXTD1, 19);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -267,14 +266,14 @@ CH_IRQ_HANDLER(Vector48) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector4C) {
+OSAL_IRQ_HANDLER(Vector4C) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR = (1 << 20);
EXTD1.config->channels[20].cb(&EXTD1, 20);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -284,10 +283,10 @@ CH_IRQ_HANDLER(Vector4C) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector140) {
+OSAL_IRQ_HANDLER(Vector140) {
uint32_t pr;
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & ((1 << 21) | (1 << 22) | (1 << 29));
EXTI->PR = pr;
@@ -298,7 +297,7 @@ CH_IRQ_HANDLER(Vector140) { if (pr & (1 << 29))
EXTD1.config->channels[29].cb(&EXTD1, 29);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -308,10 +307,10 @@ CH_IRQ_HANDLER(Vector140) { *
* @isr
*/
-CH_IRQ_HANDLER(Vector144) {
+OSAL_IRQ_HANDLER(Vector144) {
uint32_t pr;
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & ((1 << 30) | (1 << 31));
EXTI->PR = pr;
@@ -325,7 +324,7 @@ CH_IRQ_HANDLER(Vector144) { if (pr & (1 << 0))
EXTD1.config->channels[32].cb(&EXTD1, 32);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -335,14 +334,14 @@ CH_IRQ_HANDLER(Vector144) { *
* @isr
*/
-CH_IRQ_HANDLER(RTC_WKUP_IRQHandler) {
+OSAL_IRQ_HANDLER(RTC_WKUP_IRQHandler) {
- CH_IRQ_PROLOGUE();
+ OSAL_IRQ_PROLOGUE();
EXTI->PR2 = (1 << 1);
EXTD1.config->channels[33].cb(&EXTD1, 33);
- CH_IRQ_EPILOGUE();
+ OSAL_IRQ_EPILOGUE();
}
#endif
@@ -357,36 +356,21 @@ CH_IRQ_HANDLER(RTC_WKUP_IRQHandler) { */
void ext_lld_exti_irq_enable(void) {
- nvicEnableVector(EXTI0_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI0_IRQ_PRIORITY));
- nvicEnableVector(EXTI1_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI1_IRQ_PRIORITY));
- nvicEnableVector(EXTI2_TS_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI2_IRQ_PRIORITY));
- nvicEnableVector(EXTI3_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI3_IRQ_PRIORITY));
- nvicEnableVector(EXTI4_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI4_IRQ_PRIORITY));
- nvicEnableVector(EXTI9_5_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI5_9_IRQ_PRIORITY));
- nvicEnableVector(EXTI15_10_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI10_15_IRQ_PRIORITY));
- nvicEnableVector(PVD_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI16_IRQ_PRIORITY));
- nvicEnableVector(RTC_Alarm_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI17_IRQ_PRIORITY));
- nvicEnableVector(USBWakeUp_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI18_IRQ_PRIORITY));
- nvicEnableVector(TAMPER_STAMP_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI19_IRQ_PRIORITY));
- nvicEnableVector(RTC_WKUP_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI20_IRQ_PRIORITY));
- nvicEnableVector(COMP1_2_3_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI21_22_29_IRQ_PRIORITY));
- nvicEnableVector(COMP4_5_6_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI30_32_IRQ_PRIORITY));
- nvicEnableVector(COMP7_IRQn,
- CORTEX_PRIORITY_MASK(STM32_EXT_EXTI33_IRQ_PRIORITY));
+ nvicEnableVector(EXTI0_IRQn, STM32_EXT_EXTI0_IRQ_PRIORITY);
+ nvicEnableVector(EXTI1_IRQn, STM32_EXT_EXTI1_IRQ_PRIORITY);
+ nvicEnableVector(EXTI2_TS_IRQn, STM32_EXT_EXTI2_IRQ_PRIORITY);
+ nvicEnableVector(EXTI3_IRQn, STM32_EXT_EXTI3_IRQ_PRIORITY);
+ nvicEnableVector(EXTI4_IRQn, STM32_EXT_EXTI4_IRQ_PRIORITY);
+ nvicEnableVector(EXTI9_5_IRQn, STM32_EXT_EXTI5_9_IRQ_PRIORITY);
+ nvicEnableVector(EXTI15_10_IRQn, STM32_EXT_EXTI10_15_IRQ_PRIORITY);
+ nvicEnableVector(PVD_IRQn, STM32_EXT_EXTI16_IRQ_PRIORITY);
+ nvicEnableVector(RTC_Alarm_IRQn, STM32_EXT_EXTI17_IRQ_PRIORITY);
+ nvicEnableVector(USBWakeUp_IRQn, STM32_EXT_EXTI18_IRQ_PRIORITY);
+ nvicEnableVector(TAMPER_STAMP_IRQn, STM32_EXT_EXTI19_IRQ_PRIORITY);
+ nvicEnableVector(RTC_WKUP_IRQn, STM32_EXT_EXTI20_IRQ_PRIORITY);
+ nvicEnableVector(COMP1_2_3_IRQn, STM32_EXT_EXTI21_22_29_IRQ_PRIORITY);
+ nvicEnableVector(COMP4_5_6_IRQn, STM32_EXT_EXTI30_32_IRQ_PRIORITY);
+ nvicEnableVector(COMP7_IRQn, STM32_EXT_EXTI33_IRQ_PRIORITY);
}
/**
diff --git a/os/hal/src/ext.c b/os/hal/src/ext.c new file mode 100644 index 000000000..81c92525a --- /dev/null +++ b/os/hal/src/ext.c @@ -0,0 +1,204 @@ +/*
+ 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 ext.c
+ * @brief EXT Driver code.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#include "hal.h"
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief EXT Driver initialization.
+ * @note This function is implicitly invoked by @p halInit(), there is
+ * no need to explicitly initialize the driver.
+ *
+ * @init
+ */
+void extInit(void) {
+
+ ext_lld_init();
+}
+
+/**
+ * @brief Initializes the standard part of a @p EXTDriver structure.
+ *
+ * @param[out] extp pointer to the @p EXTDriver object
+ *
+ * @init
+ */
+void extObjectInit(EXTDriver *extp) {
+
+ extp->state = EXT_STOP;
+ extp->config = NULL;
+}
+
+/**
+ * @brief Configures and activates the EXT peripheral.
+ * @post After activation all EXT channels are in the disabled state,
+ * use @p extChannelEnable() in order to activate them.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] config pointer to the @p EXTConfig object
+ *
+ * @api
+ */
+void extStart(EXTDriver *extp, const EXTConfig *config) {
+
+ osalDbgCheck((extp != NULL) && (config != NULL));
+
+ osalSysLock();
+ osalDbgAssert((extp->state == EXT_STOP) || (extp->state == EXT_ACTIVE),
+ "invalid state");
+ extp->config = config;
+ ext_lld_start(extp);
+ extp->state = EXT_ACTIVE;
+ osalSysUnlock();
+}
+
+/**
+ * @brief Deactivates the EXT peripheral.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ *
+ * @api
+ */
+void extStop(EXTDriver *extp) {
+
+ osalDbgCheck(extp != NULL);
+
+ osalSysLock();
+ osalDbgAssert((extp->state == EXT_STOP) || (extp->state == EXT_ACTIVE),
+ "invalid state");
+ ext_lld_stop(extp);
+ extp->state = EXT_STOP;
+ osalSysUnlock();
+}
+
+/**
+ * @brief Enables an EXT channel.
+ * @pre The channel must not be in @p EXT_CH_MODE_DISABLED mode.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be enabled
+ *
+ * @api
+ */
+void extChannelEnable(EXTDriver *extp, expchannel_t channel) {
+
+ osalDbgCheck((extp != NULL) && (channel < EXT_MAX_CHANNELS));
+
+ osalSysLock();
+ osalDbgAssert((extp->state == EXT_ACTIVE) &&
+ ((extp->config->channels[channel].mode &
+ EXT_CH_MODE_EDGES_MASK) != EXT_CH_MODE_DISABLED),
+ "invalid state");
+ extChannelEnableI(extp, channel);
+ osalSysUnlock();
+}
+
+/**
+ * @brief Disables an EXT channel.
+ * @pre The channel must not be in @p EXT_CH_MODE_DISABLED mode.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be disabled
+ *
+ * @api
+ */
+void extChannelDisable(EXTDriver *extp, expchannel_t channel) {
+
+ osalDbgCheck((extp != NULL) && (channel < EXT_MAX_CHANNELS));
+
+ osalSysLock();
+ osalDbgAssert((extp->state == EXT_ACTIVE) &&
+ ((extp->config->channels[channel].mode &
+ EXT_CH_MODE_EDGES_MASK) != EXT_CH_MODE_DISABLED),
+ "invalid state");
+ extChannelDisableI(extp, channel);
+ osalSysUnlock();
+}
+
+/**
+ * @brief Changes the operation mode of a channel.
+ * @note This function attempts to write over the current configuration
+ * structure that must have been not declared constant. This
+ * violates the @p const qualifier in @p extStart() but it is
+ * intentional.
+ * @note This function cannot be used if the configuration structure is
+ * declared @p const.
+ * @note The effect of this function on constant configuration structures
+ * is not defined.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be changed
+ * @param[in] extcp new configuration for the channel
+ *
+ * @iclass
+ */
+void extSetChannelModeI(EXTDriver *extp,
+ expchannel_t channel,
+ const EXTChannelConfig *extcp) {
+ EXTChannelConfig *oldcp;
+
+ osalDbgCheck((extp != NULL) &&
+ (channel < EXT_MAX_CHANNELS) &&
+ (extcp != NULL));
+
+ osalDbgAssert(extp->state == EXT_ACTIVE, "invalid state");
+
+ /* Note that here the access is enforced as non-const, known access
+ violation.*/
+ oldcp = (EXTChannelConfig *)&extp->config->channels[channel];
+
+ /* Overwiting the old channels configuration then the channel is reconfigured
+ by the low level driver.*/
+ *oldcp = *extcp;
+ ext_lld_channel_enable(extp, channel);
+}
+
+#endif /* HAL_USE_EXT */
+
+/** @} */
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