Diff: USBHost/USBEndpoint.h

Revision:

0:dae1ac0c0a7b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHost/USBEndpoint.h	Wed Aug 07 05:33:53 2019 +0000
@@ -0,0 +1,191 @@
+/* mbed USBHost Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * 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 USBENDPOINT_H
+#define USBENDPOINT_H
+
+#include "Callback.h"
+#include "USBHostTypes.h"
+#include "rtos.h"
+
+class USBDeviceConnected;
+
+/**
+* USBEndpoint class
+*/
+class USBEndpoint
+{
+public:
+    /**
+    * Constructor
+    */
+    USBEndpoint() {
+#ifdef USBHOST_OTHER
+        speed = false;
+#endif
+        state = USB_TYPE_FREE;
+        nextEp = NULL;
+    };
+
+    /**
+    * Initialize an endpoint
+    *
+    * @param hced hced associated to the endpoint
+    * @param type endpoint type
+    * @param dir endpoint direction
+    * @param size endpoint size
+    * @param ep_number endpoint number
+    * @param td_list array of two allocated transfer descriptors
+    */
+
+    void init(HCED * hced, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir, uint32_t size, uint8_t ep_number, HCTD* td_list[2]);
+
+    /**
+    * Set next token. Warning: only useful for the control endpoint
+    *
+    * @param token IN, OUT or SETUP token
+    */
+    void setNextToken(uint32_t token);
+
+    /**
+    * Queue an endpoint
+    *
+    * @param endpoint endpoint which will be queued in the linked list
+    */
+    void queueEndpoint(USBEndpoint * endpoint);
+
+
+    /**
+    * Queue a transfer on the endpoint
+    */
+    USB_TYPE queueTransfer();
+
+    /**
+    * Unqueue a transfer from the endpoint
+    *
+    * @param td hctd which will be unqueued
+    */
+    void unqueueTransfer(volatile HCTD * td);
+
+    /**
+     *  Attach a member function to call when a transfer is finished
+     *
+     *  @param tptr pointer to the object to call the member function on
+     *  @param mptr pointer to the member function to be called
+     */
+    template<typename T>
+    inline void attach(T* tptr, void (T::*mptr)(void)) {
+        if((mptr != NULL) && (tptr != NULL)) {
+            rx = callback(tptr, mptr);
+        }
+    }
+
+    /**
+     * Attach a callback called when a transfer is finished
+     *
+     * @param fptr function pointer
+     */
+    inline void attach(void (*fptr)(void)) {
+        if(fptr != NULL) {
+            rx = fptr;
+        }
+    }
+
+    /**
+    * Call the handler associted to the end of a transfer
+    */
+    inline void call() {
+        if (rx)
+            rx.call();
+    };
+
+
+    // setters
+#ifdef USBHOST_OTHER
+    void setState(USB_TYPE st);
+#else
+    inline void setState(USB_TYPE st) { state = st; }
+#endif
+    void setState(uint8_t st);
+    void setDeviceAddress(uint8_t addr);
+    inline void setLengthTransferred(int len) { transferred = len; };
+    void setSpeed(uint8_t speed);
+    void setSize(uint32_t size);
+    inline void setDir(ENDPOINT_DIRECTION d) { dir = d; }
+    inline void setIntfNb(uint8_t intf_nb_) { intf_nb = intf_nb_; };
+
+    // getters
+    const char *                getStateString();
+    inline USB_TYPE             getState() { return state; }
+    inline ENDPOINT_TYPE        getType() { return type; };
+#ifdef  USBHOST_OTHER
+    inline uint8_t              getDeviceAddress() { return  device_address; };
+    inline uint32_t             getSize() { return size; };
+#else
+    inline uint8_t              getDeviceAddress() { return hced->control & 0x7f; };
+	inline uint32_t             getSize() { return (hced->control >> 16) & 0x3ff; };
+    inline volatile HCTD *      getHeadTD() { return (volatile HCTD*) ((uint32_t)hced->headTD & ~0xF); };
+#endif
+    inline int                  getLengthTransferred() { return transferred; }
+    inline uint8_t *            getBufStart() { return buf_start; }
+    inline uint8_t              getAddress(){ return address; };
+    inline volatile HCTD**      getTDList() { return td_list; };
+    inline volatile HCED *      getHCED() { return hced; };
+    inline ENDPOINT_DIRECTION   getDir() { return dir; }
+    inline volatile HCTD *      getProcessedTD() { return td_current; };
+    inline volatile HCTD*       getNextTD() { return td_current; };
+    inline bool                 isSetup() { return setup; }
+    inline USBEndpoint *        nextEndpoint() { return (USBEndpoint*)nextEp; };
+    inline uint8_t              getIntfNb() { return intf_nb; };
+
+    USBDeviceConnected * dev;
+
+    Queue<uint8_t, 1> ep_queue;
+
+private:
+    ENDPOINT_TYPE type;
+    volatile USB_TYPE state;
+    ENDPOINT_DIRECTION dir;
+#ifdef USBHOST_OTHER 
+	uint32_t size;
+	uint32_t ep_number;
+	uint32_t speed;
+    uint8_t device_address;
+#endif
+    bool setup;
+
+    uint8_t address;
+
+    int transfer_len;
+    int transferred;
+    uint8_t * buf_start;
+
+    Callback<void()> rx;
+
+    USBEndpoint* nextEp;
+
+    // USBEndpoint descriptor
+    volatile HCED * hced;
+
+    volatile HCTD * td_list[2];
+    volatile HCTD * td_current;
+    volatile HCTD * td_next;
+
+    uint8_t intf_nb;
+
+};
+
+#endif