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Diffstat (limited to 'os/hal/templates/can_lld.c')
| -rw-r--r-- | os/hal/templates/can_lld.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/os/hal/templates/can_lld.c b/os/hal/templates/can_lld.c new file mode 100644 index 000000000..d095a645e --- /dev/null +++ b/os/hal/templates/can_lld.c @@ -0,0 +1,243 @@ +/*
+ 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/can_lld.c
+ * @brief CAN Driver subsystem low level driver source template.
+ *
+ * @addtogroup CAN
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_CAN || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/**
+ * @brief CAN1 driver identifier.
+ */
+#if PLATFORM_CAN_USE_CAN1 || defined(__DOXYGEN__)
+CANDriver CAND1;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level CAN driver initialization.
+ *
+ * @notapi
+ */
+void can_lld_init(void) {
+
+#if PLATFORM_CAN_USE_CAN1
+ /* Driver initialization.*/
+ canObjectInit(&CAND1);
+#endif /* PLATFORM_CAN_USE_CAN1 */
+}
+
+/**
+ * @brief Configures and activates the CAN peripheral.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ *
+ * @notapi
+ */
+void can_lld_start(CANDriver *canp) {
+
+ if (canp->state == CAN_STOP) {
+ /* Enables the peripheral.*/
+#if PLATFORM_CAN_USE_CAN1
+ if (&CAND1 == canp) {
+
+ }
+#endif /* PLATFORM_CAN_USE_CAN1 */
+ }
+ /* Configures the peripheral.*/
+
+}
+
+/**
+ * @brief Deactivates the CAN peripheral.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ *
+ * @notapi
+ */
+void can_lld_stop(CANDriver *canp) {
+
+ if (canp->state == CAN_READY) {
+ /* Resets the peripheral.*/
+
+ /* Disables the peripheral.*/
+#if PLATFORM_CAN_USE_CAN1
+ if (&CAND1 == canp) {
+
+ }
+#endif /* PLATFORM_CAN_USE_CAN1 */
+ }
+}
+
+/**
+ * @brief Determines whether a frame can be transmitted.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ * @param[in] mailbox mailbox number, @p CAN_ANY_MAILBOX for any mailbox
+ *
+ * @return The queue space availability.
+ * @retval FALSE no space in the transmit queue.
+ * @retval TRUE transmit slot available.
+ *
+ * @notapi
+ */
+bool_t can_lld_is_tx_empty(CANDriver *canp, canmbx_t mailbox) {
+
+ (void)canp;
+
+ switch (mailbox) {
+ case CAN_ANY_MAILBOX:
+ return FALSE;
+ case 1:
+ return FALSE;
+ case 2:
+ return FALSE;
+ case 3:
+ return FALSE;
+ default:
+ return FALSE;
+ }
+}
+
+/**
+ * @brief Inserts a frame into the transmit queue.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ * @param[in] ctfp pointer to the CAN frame to be transmitted
+ * @param[in] mailbox mailbox number, @p CAN_ANY_MAILBOX for any mailbox
+ *
+ * @notapi
+ */
+void can_lld_transmit(CANDriver *canp,
+ canmbx_t mailbox,
+ const CANTxFrame *ctfp) {
+
+ (void)canp;
+ (void)mailbox;
+ (void)ctfp;
+
+}
+
+/**
+ * @brief Determines whether a frame has been received.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ * @param[in] mailbox mailbox number, @p CAN_ANY_MAILBOX for any mailbox
+ *
+ * @return The queue space availability.
+ * @retval FALSE no space in the transmit queue.
+ * @retval TRUE transmit slot available.
+ *
+ * @notapi
+ */
+bool_t can_lld_is_rx_nonempty(CANDriver *canp, canmbx_t mailbox) {
+
+ (void)canp;
+ (void)mailbox;
+
+ switch (mailbox) {
+ case CAN_ANY_MAILBOX:
+ return FALSE;
+ case 1:
+ return FALSE;
+ case 2:
+ return FALSE;
+ default:
+ return FALSE;
+ }
+}
+
+/**
+ * @brief Receives a frame from the input queue.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ * @param[in] mailbox mailbox number, @p CAN_ANY_MAILBOX for any mailbox
+ * @param[out] crfp pointer to the buffer where the CAN frame is copied
+ *
+ * @notapi
+ */
+void can_lld_receive(CANDriver *canp,
+ canmbx_t mailbox,
+ CANRxFrame *crfp) {
+
+ (void)canp;
+ (void)mailbox;
+ (void)crfp;
+
+}
+
+#if CAN_USE_SLEEP_MODE || defined(__DOXYGEN__)
+/**
+ * @brief Enters the sleep mode.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ *
+ * @notapi
+ */
+void can_lld_sleep(CANDriver *canp) {
+
+ (void)canp;
+
+}
+
+/**
+ * @brief Enforces leaving the sleep mode.
+ *
+ * @param[in] canp pointer to the @p CANDriver object
+ *
+ * @notapi
+ */
+void can_lld_wakeup(CANDriver *canp) {
+
+ (void)canp;
+
+}
+#endif /* CAN_USE_SLEEP_MODE */
+
+#endif /* HAL_USE_CAN */
+
+/** @} */
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