./workspace/TS100 -> ./source/

source/Core/Drivers/FUSB302/protocol_tx.h

@@ -0,0 +1,97 @@
+/*
+ * PD Buddy Firmware Library - USB Power Delivery for everyone
+ * Copyright 2017-2018 Clayton G. Hobbs
+ *
+ * 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.
+ */
+
+#ifndef PDB_PROTOCOL_TX_H
+#define PDB_PROTOCOL_TX_H
+
+#include <stdint.h>
+#include "policy_engine.h"
+#include "protocol_rx.h"
+#include <pd.h>
+
+/* Events for the Protocol TX thread */
+
+class ProtocolTransmit {
+public:
+	static void init();
+	//Push a message to the queue to be sent out the pd comms bus
+	static void pushMessage(union pd_msg *msg);
+
+	enum class Notifications {
+
+		PDB_EVT_PRLTX_RESET = EVENT_MASK(0), //
+		PDB_EVT_PRLTX_I_TXSENT = EVENT_MASK(1), //
+		PDB_EVT_PRLTX_I_RETRYFAIL = EVENT_MASK(2), //
+		PDB_EVT_PRLTX_DISCARD = EVENT_MASK(3), //
+		PDB_EVT_PRLTX_MSG_TX = EVENT_MASK(4), //
+		PDB_EVT_PRLTX_START_AMS = EVENT_MASK(5), //
+	};
+	static void notify(Notifications notification);
+private:
+	static void thread(const void *args);
+	static EventGroupHandle_t xEventGroupHandle;
+	static StaticEventGroup_t xCreatedEventGroup;
+	static osThreadId TaskHandle;
+	static const size_t TaskStackSize = 1024 / 4;
+	static uint32_t TaskBuffer[TaskStackSize];
+	static osStaticThreadDef_t TaskControlBlock;
+	static bool messageSending;
+	/*
+	 * Protocol TX machine states
+	 *
+	 * Because the PHY can automatically send retries, the Check_RetryCounter state
+	 * has been removed, transitions relating to it are modified appropriately, and
+	 * we don't even keep a RetryCounter.
+	 */
+	enum protocol_tx_state {
+		PRLTxPHYReset,
+		PRLTxWaitMessage,
+		PRLTxReset,
+		PRLTxConstructMessage,
+		PRLTxWaitResponse,
+		PRLTxMatchMessageID,
+		PRLTxTransmissionError,
+		PRLTxMessageSent,
+		PRLTxDiscardMessage
+	};
+	//Internal states
+	static protocol_tx_state protocol_tx_discard_message();
+	static protocol_tx_state protocol_tx_message_sent();
+	static protocol_tx_state protocol_tx_transmission_error();
+	static protocol_tx_state protocol_tx_match_messageid();
+	static protocol_tx_state protocol_tx_wait_response();
+	static protocol_tx_state protocol_tx_construct_message();
+	static protocol_tx_state protocol_tx_reset();
+	static protocol_tx_state protocol_tx_wait_message();
+	static protocol_tx_state protocol_tx_phy_reset();
+	//queue of up to PDB_MSG_POOL_SIZE messages to send
+	static StaticQueue_t xStaticQueue;
+	/* The array to use as the queue's storage area.  This must be at least
+	 uxQueueLength * uxItemSize bytes. */
+	static uint8_t ucQueueStorageArea[PDB_MSG_POOL_SIZE * sizeof(union pd_msg)];
+	static QueueHandle_t messagesWaiting;
+	static uint8_t _tx_messageidcounter;
+	static bool messagePending();
+	//Reads a message off the queue into the temp message
+	static void getMessage();
+	static union pd_msg temp_msg;
+	static Notifications waitForEvent(uint32_t mask, TickType_t ticksToWait =
+	portMAX_DELAY);
+
+};
+
+#endif /* PDB_PROTOCOL_TX_H */