1 files changed, 154 insertions, 0 deletions

diff --git a/lib/chibios/os/hal/templates/hal_gpt_lld.h b/lib/chibios/os/hal/templates/hal_gpt_lld.h
new file mode 100644
index 000000000..468dfd0cc
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+++ b/lib/chibios/os/hal/templates/hal_gpt_lld.h
@@ -0,0 +1,154 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 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    hal_gpt_lld.h
+ * @brief   PLATFORM GPT subsystem low level driver header.
+ *
+ * @addtogroup GPT
+ * @{
+ */
+
+#ifndef HAL_GPT_LLD_H
+#define HAL_GPT_LLD_H
+
+#if (HAL_USE_GPT == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    PLATFORM configuration options
+ * @{
+ */
+/**
+ * @brief   GPTD1 driver enable switch.
+ * @details If set to @p TRUE the support for GPTD1 is included.
+ * @note    The default is @p FALSE.
+ */
+#if !defined(PLATFORM_GPT_USE_GPT1) || defined(__DOXYGEN__)
+#define PLATFORM_GPT_USE_GPT1               FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   GPT frequency type.
+ */
+typedef uint32_t gptfreq_t;
+
+/**
+ * @brief   GPT counter type.
+ */
+typedef uint16_t gptcnt_t;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+  /**
+   * @brief   Timer clock in Hz.
+   * @note    The low level can use assertions in order to catch invalid
+   *          frequency specifications.
+   */
+  gptfreq_t                 frequency;
+  /**
+   * @brief   Timer callback pointer.
+   * @note    This callback is invoked on GPT counter events.
+   */
+  gptcallback_t             callback;
+  /* End of the mandatory fields.*/
+} GPTConfig;
+
+/**
+ * @brief   Structure representing a GPT driver.
+ */
+struct GPTDriver {
+  /**
+   * @brief Driver state.
+   */
+  gptstate_t                state;
+  /**
+   * @brief Current configuration data.
+   */
+  const GPTConfig           *config;
+#if defined(GPT_DRIVER_EXT_FIELDS)
+  GPT_DRIVER_EXT_FIELDS
+#endif
+  /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Changes the interval of GPT peripheral.
+ * @details This function changes the interval of a running GPT unit.
+ * @pre     The GPT unit must have been activated using @p gptStart().
+ * @pre     The GPT unit must have been running in continuous mode using
+ *          @p gptStartContinuous().
+ * @post    The GPT unit interval is changed to the new value.
+ * @note    The function has effect at the next cycle start.
+ *
+ * @param[in] gptp      pointer to a @p GPTDriver object
+ * @param[in] interval  new cycle time in timer ticks
+ * @notapi
+ */
+#define gpt_lld_change_interval(gptp, interval) {                           \
+  (void)gptp;                                                               \
+  (void)interval;                                                           \
+}
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if (PLATFORM_GPT_USE_GPT1 == TRUE) && !defined(__DOXYGEN__)
+extern GPTDriver GPTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void gpt_lld_init(void);
+  void gpt_lld_start(GPTDriver *gptp);
+  void gpt_lld_stop(GPTDriver *gptp);
+  void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t interval);
+  void gpt_lld_stop_timer(GPTDriver *gptp);
+  void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_GPT == TRUE */
+
+#endif /* HAL_GPT_LLD_H */
+
+/** @} */