diff options
Diffstat (limited to 'os/hal/templates/hal_dac_lld.c')
| -rw-r--r-- | os/hal/templates/hal_dac_lld.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/os/hal/templates/hal_dac_lld.c b/os/hal/templates/hal_dac_lld.c new file mode 100644 index 000000000..33a39e673 --- /dev/null +++ b/os/hal/templates/hal_dac_lld.c @@ -0,0 +1,170 @@ +/*
+ 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 dac_lld.c
+ * @brief PLATFORM DAC subsystem low level driver source.
+ *
+ * @addtogroup DAC
+ * @{
+ */
+
+#include "hal.h"
+
+#if (HAL_USE_DAC == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/** @brief DAC1 driver identifier.*/
+#if (PLATFORM_DAC_USE_DAC1 == TRUE) || defined(__DOXYGEN__)
+DACDriver DACD1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level DAC driver initialization.
+ *
+ * @notapi
+ */
+void dac_lld_init(void) {
+
+#if PLATFORM_DAC_USE_DAC1 == TRUE
+ dacObjectInit(&DACD1);
+#endif
+}
+
+/**
+ * @brief Configures and activates the DAC peripheral.
+ *
+ * @param[in] dacp pointer to the @p DACDriver object
+ *
+ * @notapi
+ */
+void dac_lld_start(DACDriver *dacp) {
+
+ /* If the driver is in DAC_STOP state then a full initialization is
+ required.*/
+ if (dacp->state == DAC_STOP) {
+ /* Enabling the clock source.*/
+#if PLATFORM_DAC_USE_DAC1 == TRUE
+ if (&DACD1 == dacp) {
+
+ }
+#endif
+ }
+}
+
+/**
+ * @brief Deactivates the DAC peripheral.
+ *
+ * @param[in] dacp pointer to the @p DACDriver object
+ *
+ * @notapi
+ */
+void dac_lld_stop(DACDriver *dacp) {
+
+ /* If in ready state then disables the DAC clock.*/
+ if (dacp->state == DAC_READY) {
+
+ /* Disabling DAC.*/
+ dacp->params->dac->CR &= dacp->params->regmask;
+
+#if PLATFORM_DAC_USE_DAC1 == TRUE
+ if (&DACD1 == dacp) {
+
+ }
+#endif
+ }
+}
+
+/**
+ * @brief Outputs a value directly on a DAC channel.
+ *
+ * @param[in] dacp pointer to the @p DACDriver object
+ * @param[in] channel DAC channel number
+ * @param[in] sample value to be output
+ *
+ * @api
+ */
+void dac_lld_put_channel(DACDriver *dacp,
+ dacchannel_t channel,
+ dacsample_t sample) {
+
+ (void)dacp;
+ (void)channel;
+ (void)sample;
+}
+
+/**
+ * @brief Starts a DAC conversion.
+ * @details Starts an asynchronous conversion operation.
+ * @note In @p DAC_DHRM_8BIT_RIGHT mode the parameters passed to the
+ * callback are wrong because two samples are packed in a single
+ * dacsample_t element. This will not be corrected, do not rely
+ * on those parameters.
+ * @note In @p DAC_DHRM_8BIT_RIGHT_DUAL mode two samples are treated
+ * as a single 16 bits sample and packed into a single dacsample_t
+ * element. The num_channels must be set to one in the group
+ * conversion configuration structure.
+ *
+ * @param[in] dacp pointer to the @p DACDriver object
+ *
+ * @notapi
+ */
+void dac_lld_start_conversion(DACDriver *dacp) {
+
+ (void)dacp;
+}
+
+/**
+ * @brief Stops an ongoing conversion.
+ * @details This function stops the currently ongoing conversion and returns
+ * the driver in the @p DAC_READY state. If there was no conversion
+ * being processed then the function does nothing.
+ *
+ * @param[in] dacp pointer to the @p DACDriver object
+ *
+ * @iclass
+ */
+void dac_lld_stop_conversion(DACDriver *dacp) {
+
+ (void)dacp;
+}
+
+#endif /* HAL_USE_DAC == TRUE */
+
+/** @} */
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