diff options
| author | edolomb <none@example.com> | 2017-08-10 12:06:07 +0000 |
|---|---|---|
| committer | edolomb <none@example.com> | 2017-08-10 12:06:07 +0000 |
| commit | 70865c1733f5798d10d1914b8e9c1a66424a55c2 (patch) | |
| tree | ec0f33645db847d43142926a7d88b5778f1b95a9 /os/hal | |
| parent | 4075ea4f8bbddca665ebfb4c6dfb78f4cc82ef62 (diff) | |
| download | ChibiOS-70865c1733f5798d10d1914b8e9c1a66424a55c2.tar.gz ChibiOS-70865c1733f5798d10d1914b8e9c1a66424a55c2.tar.bz2 ChibiOS-70865c1733f5798d10d1914b8e9c1a66424a55c2.zip | |
Add SAMA advanced interrupt controller
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10381 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal')
| -rw-r--r-- | os/hal/ports/common/ARMCAx/aic.c | 187 | ||||
| -rw-r--r-- | os/hal/ports/common/ARMCAx/aic.h | 73 |
2 files changed, 260 insertions, 0 deletions
diff --git a/os/hal/ports/common/ARMCAx/aic.c b/os/hal/ports/common/ARMCAx/aic.c new file mode 100644 index 000000000..2e390a024 --- /dev/null +++ b/os/hal/ports/common/ARMCAx/aic.c @@ -0,0 +1,187 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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 common/ARMCAx/aic.c
+ * @brief Cortex-Ax AIC support code.
+ *
+ * @addtogroup COMMON_ARMCAx_AIC
+ * @{
+ */
+
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief AIC Initialization.
+ * @note Better reset everything in the AIC.
+ *
+ * @notapi
+ */
+void aicInit(void) {
+
+ Aic *aic = SAIC;
+
+ unsigned i;
+ /* Disable all interrupts */
+ for (i = 1; i < ID_PERIPH_COUNT; i++) {
+ aic->AIC_SSR = i;
+ aic->AIC_IDCR = AIC_IDCR_INTD;
+ }
+ /* Clear All pending interrupts flags */
+ for (i = 0; i < ID_PERIPH_COUNT; i++) {
+ aic->AIC_SSR = i;
+ aic->AIC_ICCR = AIC_ICCR_INTCLR;
+ }
+}
+
+/**
+ * @brief Configures an interrupt in the AIC.
+ *
+ * @param[in] source interrupt source to configure
+ * @param[in] prior priority level of the source selected
+ * by INTSEL except FIQ source (source 0).
+ */
+void aicConfigureIt(uint32_t source, uint8_t prior) {
+
+ Aic *aic = SAIC;
+
+ /* Disable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD;
+ /* Set source id */
+ aic->AIC_SSR = source;
+ /* Disable the interrupt first */
+ aic->AIC_IDCR = AIC_IDCR_INTD;
+ /* Configure priority */
+ aic->AIC_SMR = AIC_SMR_PRIOR(prior);
+ /* Clear interrupt */
+ aic->AIC_ICCR = AIC_ICCR_INTCLR;
+ /* Enable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD | AIC_WPMR_WPEN;
+}
+
+/**
+ * @brief Sets the source vector of an interrupt.
+ *
+ * @param[in] source interrupt source to configure
+ * @param[in] handler handler for the interrupt source selected
+ */
+void aicSetSourceVector(uint32_t source, bool (*handler)(void)) {
+
+ Aic *aic = SAIC;
+
+ /* Disable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD;
+ /* Select source and assign handler */
+ aic->AIC_SSR = AIC_SSR_INTSEL(source);
+ aic->AIC_SVR = (uint32_t)handler;
+ /* Enable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD | AIC_WPMR_WPEN;
+}
+
+/**
+ * @brief Sets the spurious vector of an interrupt.
+ *
+ * @param[in] handler handler for the interrupt
+ */
+void aicSetSpuriousVector(bool (*handler)(void)) {
+
+ Aic *aic = SAIC;
+
+ /* Disable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD;
+ /* Assign handler */
+ aic->AIC_SPU = (uint32_t)handler;
+ /* Enable write protection */
+ aic->AIC_WPMR = AIC_WPMR_WPKEY_PASSWD | AIC_WPMR_WPEN;
+}
+
+/**
+ * @brief Enables interrupts coming from the source.
+ *
+ * @param[in] source interrupt source to enable
+ */
+void aicEnableIt(uint32_t source) {
+
+ Aic *aic = SAIC;
+
+ aic->AIC_SSR = AIC_SSR_INTSEL(source);
+ aic->AIC_IECR = AIC_IECR_INTEN;
+}
+
+/**
+ * @brief Disables interrupts coming from the selected source.
+ *
+ * @param[in] source interrupt source to disable
+ */
+void aicDisableIt(uint32_t source) {
+
+ Aic *aic = SAIC;
+
+ aic->AIC_SSR = AIC_SSR_INTSEL(source);
+ aic->AIC_IDCR = AIC_IDCR_INTD;
+}
+
+/**
+ * @brief Clears interrupts coming from the selected source.
+ *
+ * @param[in] source interrupt source
+ */
+void aicClearIt(uint32_t source) {
+
+ Aic *aic = SAIC;
+
+ aic->AIC_SSR = AIC_SSR_INTSEL(source);
+ aic->AIC_ICCR = AIC_ICCR_INTCLR;
+}
+
+/**
+ * @brief Sets interrupts coming from the selected source.
+ *
+ * @param[in] source interrupt source
+ */
+void aicSetIt(uint32_t source) {
+
+ Aic *aic = SAIC;
+
+ aic->AIC_SSR = AIC_SSR_INTSEL(source);
+ aic->AIC_ISCR = AIC_ISCR_INTSET;
+}
+
+/** @} */
diff --git a/os/hal/ports/common/ARMCAx/aic.h b/os/hal/ports/common/ARMCAx/aic.h new file mode 100644 index 000000000..d70e95ac5 --- /dev/null +++ b/os/hal/ports/common/ARMCAx/aic.h @@ -0,0 +1,73 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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 common/ARMCMAx/aic.h
+ * @brief Cortex-MAx AIC support macros and structures.
+ *
+ * @addtogroup COMMON_ARMCMAx_AIC
+ * @{
+ */
+
+#ifndef AIC_H
+#define AIC_H
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @brief Priority level to priority mask conversion macro.
+ */
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void aicInit(void);
+ void aicConfigureIt(uint32_t source, uint8_t prior);
+ void aicSetSourceVector(uint32_t source, bool (*handler)(void));
+ void aicSetSpuriousVector(bool (*handler)(void));
+ void aicEnableIt(uint32_t source);
+ void aicDisableIt(uint32_t source);
+ void aicClearIt(uint32_t source);
+ void aicSetIt(uint32_t source);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AIC_H */
+
+/** @} */
|