USBCDC.h

00001 /* Copyright (c) 2010-2011 mbed.org, MIT License
00002 *
00003 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004 * and associated documentation files (the "Software"), to deal in the Software without
00005 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
00006 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
00007 * Software is furnished to do so, subject to the following conditions:
00008 *
00009 * The above copyright notice and this permission notice shall be included in all copies or
00010 * substantial portions of the Software.
00011 *
00012 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017 */
00018 
00019 #ifndef USBCDC_H
00020 #define USBCDC_H
00021 
00022 /* These headers are included for child class. */
00023 #include "USBEndpoints.h"
00024 #include "USBDescriptor.h"
00025 #include "USBDevice_Types.h"
00026 
00027 #include "USBDevice.h"
00028 
00029 class USBCDC: public USBDevice {
00030 public:
00031 
00032     /*
00033     * Constructor
00034     *
00035     * @param vendor_id Your vendor_id
00036     * @param product_id Your product_id
00037     * @param product_release Your preoduct_release
00038     * @param connect_blocking define if the connection must be blocked if USB not plugged in
00039     */
00040     USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release, bool connect_blocking);
00041 
00042 protected:
00043 
00044     /*
00045     * Get device descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
00046     *
00047     * @returns pointer to the device descriptor
00048     */
00049     virtual const uint8_t * deviceDesc();
00050 
00051     /*
00052     * Get string product descriptor
00053     *
00054     * @returns pointer to the string product descriptor
00055     */
00056     virtual const uint8_t * stringIproductDesc();
00057 
00058     /*
00059     * Get string interface descriptor
00060     *
00061     * @returns pointer to the string interface descriptor
00062     */
00063     virtual const uint8_t * stringIinterfaceDesc();
00064 
00065     /*
00066     * Get configuration descriptor
00067     *
00068     * @returns pointer to the configuration descriptor
00069     */
00070     virtual const uint8_t * configurationDesc();
00071 
00072     /*
00073     * Send a buffer
00074     *
00075     * @param endpoint endpoint which will be sent the buffer
00076     * @param buffer buffer to be sent
00077     * @param size length of the buffer
00078     * @returns true if successful
00079     */
00080     bool send(uint8_t * buffer, uint32_t size);
00081 
00082     /*
00083     * Read a buffer from a certain endpoint. Warning: blocking
00084     *
00085     * @param endpoint endpoint to read
00086     * @param buffer buffer where will be stored bytes
00087     * @param size the number of bytes read will be stored in *size
00088     * @param maxSize the maximum length that can be read
00089     * @returns true if successful
00090     */
00091     bool readEP(uint8_t * buffer, uint32_t * size);
00092 
00093     /*
00094     * Read a buffer from a certain endpoint. Warning: non blocking
00095     *
00096     * @param endpoint endpoint to read
00097     * @param buffer buffer where will be stored bytes
00098     * @param size the number of bytes read will be stored in *size
00099     * @param maxSize the maximum length that can be read
00100     * @returns true if successful
00101     */
00102     bool readEP_NB(uint8_t * buffer, uint32_t * size);
00103 
00104     /*
00105     * Called by USBCallback_requestCompleted when CDC line coding is changed
00106     * Warning: Called in ISR
00107     *
00108     * @param baud The baud rate
00109     * @param bits The number of bits in a word (5-8)
00110     * @param parity The parity
00111     * @param stop The number of stop bits (1 or 2)
00112     */
00113     virtual void lineCodingChanged(int baud, int bits, int parity, int stop) {};
00114 
00115 protected:
00116     virtual bool USBCallback_request();
00117     virtual void USBCallback_requestCompleted(uint8_t *buf, uint32_t length);
00118     virtual bool USBCallback_setConfiguration(uint8_t configuration);
00119     virtual void USBCallback_busReset(void);
00120     volatile bool terminal_connected;
00121 
00122 };
00123 
00124 #endif