ChibiOS 2.6.8, until I can figure out where to get it from git.

2026-09-12 01:29:29 +00:00 · 2015-07-08 08:40:23 -07:00
parent dc6fee8370
commit e1eea8e08a
1929 changed files with 575326 additions and 0 deletions
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+/*
+    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/>.
+
+                                      ---
+
+    A special exception to the GPL can be applied should you wish to distribute
+    a combined work that includes ChibiOS/RT, without being obliged to provide
+    the source code for any proprietary components. See the file exception.txt
+    for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @file    icu.c
+ * @brief   ICU Driver code.
+ *
+ * @addtogroup ICU
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_ICU || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   ICU Driver initialization.
+ * @note    This function is implicitly invoked by @p halInit(), there is
+ *          no need to explicitly initialize the driver.
+ *
+ * @init
+ */
+void icuInit(void) {
+
+  icu_lld_init();
+}
+
+/**
+ * @brief   Initializes the standard part of a @p ICUDriver structure.
+ *
+ * @param[out] icup     pointer to the @p ICUDriver object
+ *
+ * @init
+ */
+void icuObjectInit(ICUDriver *icup) {
+
+  icup->state  = ICU_STOP;
+  icup->config = NULL;
+}
+
+/**
+ * @brief   Configures and activates the ICU peripheral.
+ *
+ * @param[in] icup      pointer to the @p ICUDriver object
+ * @param[in] config    pointer to the @p ICUConfig object
+ *
+ * @api
+ */
+void icuStart(ICUDriver *icup, const ICUConfig *config) {
+
+  chDbgCheck((icup != NULL) && (config != NULL), "icuStart");
+
+  chSysLock();
+  chDbgAssert((icup->state == ICU_STOP) || (icup->state == ICU_READY),
+              "icuStart(), #1", "invalid state");
+  icup->config = config;
+  icu_lld_start(icup);
+  icup->state = ICU_READY;
+  chSysUnlock();
+}
+
+/**
+ * @brief   Deactivates the ICU peripheral.
+ *
+ * @param[in] icup      pointer to the @p ICUDriver object
+ *
+ * @api
+ */
+void icuStop(ICUDriver *icup) {
+
+  chDbgCheck(icup != NULL, "icuStop");
+
+  chSysLock();
+  chDbgAssert((icup->state == ICU_STOP) || (icup->state == ICU_READY),
+              "icuStop(), #1", "invalid state");
+  icu_lld_stop(icup);
+  icup->state = ICU_STOP;
+  chSysUnlock();
+}
+
+/**
+ * @brief   Enables the input capture.
+ *
+ * @param[in] icup      pointer to the @p ICUDriver object
+ *
+ * @api
+ */
+void icuEnable(ICUDriver *icup) {
+
+  chDbgCheck(icup != NULL, "icuEnable");
+
+  chSysLock();
+  chDbgAssert(icup->state == ICU_READY, "icuEnable(), #1", "invalid state");
+  icu_lld_enable(icup);
+  icup->state = ICU_WAITING;
+  chSysUnlock();
+}
+
+/**
+ * @brief   Disables the input capture.
+ *
+ * @param[in] icup      pointer to the @p ICUDriver object
+ *
+ * @api
+ */
+void icuDisable(ICUDriver *icup) {
+
+  chDbgCheck(icup != NULL, "icuDisable");
+
+  chSysLock();
+  chDbgAssert((icup->state == ICU_READY) || (icup->state == ICU_WAITING) ||
+              (icup->state == ICU_ACTIVE) || (icup->state == ICU_IDLE),
+              "icuDisable(), #1", "invalid state");
+  icu_lld_disable(icup);
+  icup->state = ICU_READY;
+  chSysUnlock();
+}
+
+#endif /* HAL_USE_ICU */
+
+/** @} */