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author | walkerstop <walkerstop@gmail.com> | 2018-05-01 01:00:33 -0700 |
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committer | GitHub <noreply@github.com> | 2018-05-01 01:00:33 -0700 |
commit | 40db44f540436398e0840544044154d13eee63b6 (patch) | |
tree | dad3f1f3b6ac3927484ee22002a947662a8a0173 /os/hal/ports/NRF5/NRF51822/hal_ext_lld.h | |
parent | 4e9f077fb10255dced1da4d5d2ad9f8ae41442a2 (diff) | |
parent | d4d384557df0e8e7a8071553448b0c42849f98c0 (diff) | |
download | ChibiOS-Contrib-40db44f540436398e0840544044154d13eee63b6.tar.gz ChibiOS-Contrib-40db44f540436398e0840544044154d13eee63b6.tar.bz2 ChibiOS-Contrib-40db44f540436398e0840544044154d13eee63b6.zip |
Merge branch 'master' into master
Diffstat (limited to 'os/hal/ports/NRF5/NRF51822/hal_ext_lld.h')
-rw-r--r-- | os/hal/ports/NRF5/NRF51822/hal_ext_lld.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/os/hal/ports/NRF5/NRF51822/hal_ext_lld.h b/os/hal/ports/NRF5/NRF51822/hal_ext_lld.h new file mode 100644 index 0000000..37ae721 --- /dev/null +++ b/os/hal/ports/NRF5/NRF51822/hal_ext_lld.h @@ -0,0 +1,139 @@ +/*
+ Copyright (C) 2015 Stephen Caudle
+
+ 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 NRF51822/ext_lld.h
+ * @brief NRF51822 GPIOTE subsystem low level driver header.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef HAL_EXT_LLD_H
+#define HAL_EXT_LLD_H
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Available number of EXT channels.
+ */
+#define EXT_MAX_CHANNELS 4
+#define EXT_MODE_GPIO_MASK 0xF8 /**< @brief Pad field mask. */
+#define EXT_MODE_GPIO_OFFSET 3 /**< @brief Pad field offset. */
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief EXT channel identifier.
+ */
+typedef uint32_t expchannel_t;
+
+/**
+ * @brief Type of an EXT generic notification callback.
+ *
+ * @param[in] extp pointer to the @p EXPDriver object triggering the
+ * callback
+ */
+typedef void (*extcallback_t)(EXTDriver *extp, expchannel_t channel);
+
+/**
+ * @brief Channel configuration structure.
+ */
+typedef struct {
+ /**
+ * @brief Channel mode.
+ */
+ uint32_t mode;
+ /**
+ * @brief Channel callback.
+ * @details In the STM32 implementation a @p NULL callback pointer is
+ * valid and configures the channel as an event sources instead
+ * of an interrupt source.
+ */
+ extcallback_t cb;
+} EXTChannelConfig;
+
+/**
+ * @brief Driver configuration structure.
+ * @note It could be empty on some architectures.
+ */
+typedef struct {
+ /**
+ * @brief Channel configurations.
+ */
+ EXTChannelConfig channels[EXT_MAX_CHANNELS];
+ /* End of the mandatory fields.*/
+} EXTConfig;
+
+/**
+ * @brief Structure representing an EXT driver.
+ */
+struct EXTDriver {
+ /**
+ * @brief Driver state.
+ */
+ extstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const EXTConfig *config;
+ /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern EXTDriver EXTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void ext_lld_init(void);
+ void ext_lld_start(EXTDriver *extp);
+ void ext_lld_stop(EXTDriver *extp);
+ void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
+ void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* HAL_EXT_LLD_H */
+
+/** @} */
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