Diff: USBHost/USBEndpoint.h

Revision:

12:b91fdea8c0a7

Child:

16:981c3104f6c0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHost/USBEndpoint.h	Mon Jun 09 09:01:10 2014 +0000
@@ -0,0 +1,145 @@
+/* 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.
+ */
+ 
+#pragma once
+#include "FunctionPointer.h"
+#include "USBHostTypes.h"
+#include "USBDeviceConnected.h"
+
+class USBDeviceConnected;
+
+/**
+* USBEndpoint class
+*/
+class USBEndpoint {
+public:
+    /**
+    * Constructor
+    */
+    USBEndpoint(USBDeviceConnected* _dev) {
+        init(CONTROL_ENDPOINT, IN, 8, 0);
+        dev = _dev;
+    }
+
+    /**
+    * Initialize an endpoint
+    *
+    * @param type endpoint type
+    * @param dir endpoint direction
+    * @param size endpoint size
+    * @param ep_number endpoint number
+    */
+    void init(ENDPOINT_TYPE _type, ENDPOINT_DIRECTION _dir, uint32_t size, uint8_t ep_number) {
+        type = _type;
+        dir = _dir;
+        MaxPacketSize = size;
+        address = ep_number;
+        data01_toggle = DATA0;
+    }
+
+    /**
+     *  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.attach(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.attach(fptr);
+        }
+    }
+
+    /**
+    * Call the handler associted to the end of a transfer
+    */
+    inline void call() {
+        rx.call();
+    };
+
+    void setDevice(USBDeviceConnected* _dev) { dev = _dev; }
+    void setState(uint8_t st){}; // dummy
+    void setBuffer(uint8_t* buf, int size) { buf_start = buf, buf_size = size; }
+    void setLengthTransferred(int len) { transferred = len; };
+    void setAddress(int addr) { address = addr; }
+    void setSize(int size) { MaxPacketSize = size; }
+    void setData01(uint8_t data01) { data01_toggle = data01; }
+    void setNextEndpoint(USBEndpoint* ep) { nextEp = ep; };
+
+    USBDeviceConnected* getDevice() { return dev; }
+    ENDPOINT_TYPE getType() { return type; };
+    int getLengthTransferred() { return transferred; }
+    uint8_t *getBufStart() { return buf_start; }
+    int getBufSize() { return buf_size; }
+    uint8_t getAddress(){ return address; };
+    int getSize() { return MaxPacketSize; }
+    ENDPOINT_DIRECTION getDir() { return dir; }
+    uint8_t getData01() { return data01_toggle; }
+    void toggleData01() {
+        data01_toggle = (data01_toggle == DATA0) ? DATA1 : DATA0;
+    }
+    USBEndpoint* nextEndpoint() { return nextEp; };
+
+private:
+    ENDPOINT_TYPE type;
+    ENDPOINT_DIRECTION dir;
+    USBDeviceConnected* dev;
+    uint8_t data01_toggle; // DATA0,DATA1
+    uint8_t address;
+    int transferred;
+    uint8_t * buf_start;
+    int buf_size;
+    FunctionPointer rx;
+    int MaxPacketSize;
+    USBEndpoint* nextEp;
+};
+
+class EndpointQueue {
+public:
+    EndpointQueue():head(NULL),tail(NULL) {}
+    void push(USBEndpoint* ep) {
+        if (head) {
+            tail->setNextEndpoint(ep);
+        } else {
+            head = ep;
+        }
+        tail = ep;
+        ep->setNextEndpoint(NULL);
+    }
+    USBEndpoint* pop() {
+        USBEndpoint* ep = head;
+        if (ep) {
+            head = ep->nextEndpoint();
+        }
+        return ep;
+    }
+    bool empty() { return head == NULL; }
+
+private:
+    USBEndpoint* head;
+    USBEndpoint* tail;
+};