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

2026-09-15 02:52:58 +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) 2006-2013 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    templates/pwm_lld.c
+ * @brief   PWM Driver subsystem low level driver source template.
+ *
+ * @addtogroup PWM
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_PWM || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   PWM1 driver identifier.
+ */
+#if PLATFORM_PWM_USE_PWM1 || defined(__DOXYGEN__)
+PWMDriver PWMD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level PWM driver initialization.
+ *
+ * @notapi
+ */
+void pwm_lld_init(void) {
+
+#if PLATFORM_PWM_USE_PWM1
+  /* Driver initialization.*/
+  pwmObjectInit(&PWMD1);
+#endif /* PLATFORM_PWM_USE_PWM1 */
+}
+
+/**
+ * @brief   Configures and activates the PWM peripheral.
+ *
+ * @param[in] pwmp      pointer to the @p PWMDriver object
+ *
+ * @notapi
+ */
+void pwm_lld_start(PWMDriver *pwmp) {
+
+  if (pwmp->state == PWM_STOP) {
+    /* Enables the peripheral.*/
+#if PLATFORM_PWM_USE_PWM1
+    if (&PWMD1 == pwmp) {
+
+    }
+#endif /* PLATFORM_PWM_USE_PWM1 */
+  }
+  /* Configures the peripheral.*/
+
+}
+
+/**
+ * @brief   Deactivates the PWM peripheral.
+ *
+ * @param[in] pwmp      pointer to the @p PWMDriver object
+ *
+ * @notapi
+ */
+void pwm_lld_stop(PWMDriver *pwmp) {
+
+  if (pwmp->state == PWM_READY) {
+    /* Resets the peripheral.*/
+
+    /* Disables the peripheral.*/
+#if PLATFORM_PWM_USE_PWM1
+    if (&PWMD1 == pwmp) {
+
+    }
+#endif /* PLATFORM_PWM_USE_PWM1 */
+  }
+}
+
+/**
+ * @brief   Changes the period the PWM peripheral.
+ * @details This function changes the period of a PWM unit that has already
+ *          been activated using @p pwmStart().
+ * @pre     The PWM unit must have been activated using @p pwmStart().
+ * @post    The PWM unit period is changed to the new value.
+ * @note    The function has effect at the next cycle start.
+ * @note    If a period is specified that is shorter than the pulse width
+ *          programmed in one of the channels then the behavior is not
+ *          guaranteed.
+ *
+ * @param[in] pwmp      pointer to a @p PWMDriver object
+ * @param[in] period    new cycle time in ticks
+ *
+ * @notapi
+ */
+void pwm_lld_change_period(PWMDriver *pwmp, pwmcnt_t period) {
+
+  (void)pwmp;
+  (void)period;
+
+}
+
+/**
+ * @brief   Enables a PWM channel.
+ * @pre     The PWM unit must have been activated using @p pwmStart().
+ * @post    The channel is active using the specified configuration.
+ * @note    Depending on the hardware implementation this function has
+ *          effect starting on the next cycle (recommended implementation)
+ *          or immediately (fallback implementation).
+ *
+ * @param[in] pwmp      pointer to a @p PWMDriver object
+ * @param[in] channel   PWM channel identifier (0...PWM_CHANNELS-1)
+ * @param[in] width     PWM pulse width as clock pulses number
+ *
+ * @notapi
+ */
+void pwm_lld_enable_channel(PWMDriver *pwmp,
+                            pwmchannel_t channel,
+                            pwmcnt_t width) {
+
+  (void)pwmp;
+  (void)channel;
+  (void)width;
+
+}
+
+/**
+ * @brief   Disables a PWM channel.
+ * @pre     The PWM unit must have been activated using @p pwmStart().
+ * @post    The channel is disabled and its output line returned to the
+ *          idle state.
+ * @note    Depending on the hardware implementation this function has
+ *          effect starting on the next cycle (recommended implementation)
+ *          or immediately (fallback implementation).
+ *
+ * @param[in] pwmp      pointer to a @p PWMDriver object
+ * @param[in] channel   PWM channel identifier (0...PWM_CHANNELS-1)
+ *
+ * @notapi
+ */
+void pwm_lld_disable_channel(PWMDriver *pwmp, pwmchannel_t channel) {
+
+  (void)pwmp;
+  (void)channel;
+
+}
+
+#endif /* HAL_USE_PWM */
+
+/** @} */