1fe4406f37
b9e0ea0 Merge commit '7fa9d8bdea3773d1195b04d98fcf27cf48ddd81d' as 'tool/mbed/mbed-sdk' 7fa9d8b Squashed 'tool/mbed/mbed-sdk/' content from commit 7c21ce5 git-subtree-dir: tmk_core git-subtree-split: b9e0ea08cb940de20b3610ecdda18e9d8cd7c552
231 lines
5.7 KiB
C++
231 lines
5.7 KiB
C++
/* mbed USBHost Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef USBHOSTSERIAL_H
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#define USBHOSTSERIAL_H
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#include "USBHostConf.h"
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#if USBHOST_SERIAL
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#include "USBHost.h"
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#include "Stream.h"
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#include "MtxCircBuffer.h"
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/**
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* A class to communicate a USB virtual serial port
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*/
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class USBHostSerialPort : public Stream {
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public:
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/**
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* Constructor
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*/
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USBHostSerialPort();
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enum IrqType {
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RxIrq,
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TxIrq
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};
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enum Parity {
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None = 0,
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Odd,
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Even,
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Mark,
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Space
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};
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void connect(USBHost* _host, USBDeviceConnected * _dev,
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uint8_t _serial_intf, USBEndpoint* _bulk_in, USBEndpoint* _bulk_out);
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/**
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* Check the number of bytes available.
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*
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* @returns the number of bytes available
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*/
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uint8_t available();
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/**
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* Attach a member function to call when a packet is received.
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*
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* @param tptr pointer to the object to call the member function on
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* @param mptr pointer to the member function to be called
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* @param irq irq type
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*/
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template<typename T>
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inline void attach(T* tptr, void (T::*mptr)(void), IrqType irq = RxIrq) {
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if ((mptr != NULL) && (tptr != NULL)) {
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if (irq == RxIrq) {
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rx.attach(tptr, mptr);
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} else {
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tx.attach(tptr, mptr);
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}
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}
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}
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/**
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* Attach a callback called when a packet is received
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*
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* @param ptr function pointer
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*/
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inline void attach(void (*fn)(void), IrqType irq = RxIrq) {
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if (fn != NULL) {
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if (irq == RxIrq) {
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rx.attach(fn);
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} else {
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tx.attach(fn);
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}
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}
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}
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/** Set the baud rate of the serial port
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*
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* @param baudrate The baudrate of the serial port (default = 9600).
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*/
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void baud(int baudrate = 9600);
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/** Set the transmission format used by the Serial port
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*
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* @param bits The number of bits in a word (default = 8)
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* @param parity The parity used (USBHostSerialPort::None, USBHostSerialPort::Odd, USBHostSerialPort::Even, USBHostSerialPort::Mark, USBHostSerialPort::Space; default = USBHostSerialPort::None)
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* @param stop The number of stop bits (1 or 2; default = 1)
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*/
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void format(int bits = 8, Parity parity = USBHostSerialPort::None, int stop_bits = 1);
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virtual int writeBuf(const char* b, int s);
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virtual int readBuf(char* b, int s);
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protected:
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virtual int _getc();
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virtual int _putc(int c);
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private:
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USBHost * host;
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USBDeviceConnected * dev;
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USBEndpoint * bulk_in;
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USBEndpoint * bulk_out;
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uint32_t size_bulk_in;
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uint32_t size_bulk_out;
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void init();
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MtxCircBuffer<uint8_t, 128> circ_buf;
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uint8_t buf[64];
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typedef struct {
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uint32_t baudrate;
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uint8_t stop_bits;
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uint8_t parity;
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uint8_t data_bits;
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} PACKED LINE_CODING;
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LINE_CODING line_coding;
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void rxHandler();
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void txHandler();
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FunctionPointer rx;
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FunctionPointer tx;
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uint8_t serial_intf;
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};
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#if (USBHOST_SERIAL <= 1)
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class USBHostSerial : public IUSBEnumerator, public USBHostSerialPort
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{
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public:
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USBHostSerial();
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/**
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* Try to connect a serial device
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*
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* @return true if connection was successful
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*/
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bool connect();
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void disconnect();
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/**
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* Check if a any serial port is connected
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*
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* @returns true if a serial device is connected
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*/
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bool connected();
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protected:
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USBHost* host;
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USBDeviceConnected* dev;
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uint8_t port_intf;
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int ports_found;
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//From IUSBEnumerator
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virtual void setVidPid(uint16_t vid, uint16_t pid);
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virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
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virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
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private:
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bool dev_connected;
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};
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#else // (USBHOST_SERIAL > 1)
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class USBHostMultiSerial : public IUSBEnumerator {
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public:
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USBHostMultiSerial();
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virtual ~USBHostMultiSerial();
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USBHostSerialPort* getPort(int port)
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{
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return port < USBHOST_SERIAL ? ports[port] : NULL;
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}
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/**
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* Try to connect a serial device
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*
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* @return true if connection was successful
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*/
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bool connect();
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void disconnect();
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/**
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* Check if a any serial port is connected
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*
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* @returns true if a serial device is connected
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*/
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bool connected();
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protected:
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USBHost* host;
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USBDeviceConnected* dev;
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USBHostSerialPort* ports[USBHOST_SERIAL];
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uint8_t port_intf[USBHOST_SERIAL];
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int ports_found;
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//From IUSBEnumerator
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virtual void setVidPid(uint16_t vid, uint16_t pid);
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virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
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virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
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private:
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bool dev_connected;
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};
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#endif // (USBHOST_SERIAL <= 1)
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#endif
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#endif
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