Revision 0:0dd5d1e4cf71, committed 2014-12-03

Comitter:

nanashino

Date:

Wed Dec 03 06:18:10 2014 +0000

Commit message:

initial version

Changed in this revision

diff -r 000000000000 -r 0dd5d1e4cf71 USB400Serial.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USB400Serial.cpp	Wed Dec 03 06:18:10 2014 +0000
@@ -0,0 +1,262 @@
+/* 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.
+ */
+
+/* USB400Serial Library
+ * Modified mujirushi.org
+ */
+
+#include "USB400Serial.h"
+
+#if USBHOST_SERIAL
+
+#include "dbg.h"
+
+#define CHECK_INTERFACE(cls,subcls,proto) 1 // \
+//        (((cls == 0xFF)         && (subcls == 0xFF) && (proto == 0xFF)) /* QUALCOM CDC */  || \
+//         ((cls == SERIAL_CLASS) && (subcls == 0x00) && (proto == 0x00)) /* STANDARD CDC */ )
+
+#if (USBHOST_SERIAL <= 1)
+
+USB400Serial::USB400Serial()
+{
+    host = USBHost::getHostInst();
+    ports_found = 0;
+    dev_connected = false;
+}
+
+bool USB400Serial::connected()
+{
+    return dev;
+//    return dev_connected;
+}
+
+void USB400Serial::disconnect(void)
+{
+    ports_found = 0;
+    dev = NULL;
+}
+
+bool USB400Serial::connect()
+{
+
+    if (dev) {
+        for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
+            USBDeviceConnected* d = host->getDevice(i);
+            if (dev == d)
+                return true;
+        }
+        disconnect();
+    }
+    for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
+        USBDeviceConnected* d = host->getDevice(i);
+        if (d != NULL) {
+
+            USB_DBG("Trying to connect serial device \r\n");
+            if(host->enumerate(d, this))
+                break;
+
+            USBEndpoint* bulk_in  = d->getEndpoint(port_intf, BULK_ENDPOINT, IN);
+            USBEndpoint* bulk_out = d->getEndpoint(port_intf, BULK_ENDPOINT, OUT);
+            if (bulk_in && bulk_out) {
+                USB400SerialPort::connect(host,d,port_intf,bulk_in, bulk_out);
+                dev = d;
+            }
+        }
+    }
+    return dev != NULL;
+}
+
+/*virtual*/ void USB400Serial::setVidPid(uint16_t vid, uint16_t pid)
+{
+    // we don't check VID/PID for MSD driver
+}
+
+/*virtual*/ bool USB400Serial::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
+{
+    if (!ports_found &&
+            CHECK_INTERFACE(intf_class, intf_subclass, intf_protocol)) {
+        port_intf = intf_nb;
+        ports_found = true;
+        return true;
+    }
+    return false;
+}
+
+/*virtual*/ bool USB400Serial::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
+{
+    if (ports_found && (intf_nb == port_intf)) {
+        if (type == BULK_ENDPOINT)
+            return true;
+    }
+    return false;
+}
+
+#else // (USBHOST_SERIAL > 1)
+
+#endif
+
+//------------------------------------------------------------------------------
+
+#define SET_LINE_CODING 0x20
+
+USB400SerialPort::USB400SerialPort(): circ_buf()
+{
+    init();
+}
+
+void USB400SerialPort::init(void)
+{
+    host = NULL;
+    dev = NULL;
+    serial_intf = NULL;
+    size_bulk_in = 0;
+    size_bulk_out = 0;
+    bulk_in = NULL;
+    bulk_out = NULL;
+    line_coding.baudrate = 9600;
+    line_coding.data_bits = 8;
+    line_coding.parity = None;
+    line_coding.stop_bits = 1;
+    circ_buf.flush();
+}
+
+void USB400SerialPort::connect(USBHost* _host, USBDeviceConnected * _dev,
+                               uint8_t _serial_intf, USBEndpoint* _bulk_in, USBEndpoint* _bulk_out)
+{
+    host = _host;
+    dev = _dev;
+    serial_intf = _serial_intf;
+    bulk_in = _bulk_in;
+    bulk_out = _bulk_out;
+
+    USB_INFO("New Serial device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, serial_intf);
+    dev->setName("Serial", serial_intf);
+    host->registerDriver(dev, serial_intf, this, &USB400SerialPort::init);
+    baud(9600); //
+    size_bulk_in = bulk_in->getSize();
+    size_bulk_out = bulk_out->getSize();
+    bulk_in->attach(this, &USB400SerialPort::rxHandler);
+    bulk_out->attach(this, &USB400SerialPort::txHandler);
+    host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
+}
+
+void USB400SerialPort::rxHandler()
+{
+    if (bulk_in) {
+        int len = bulk_in->getLengthTransferred();
+        if (bulk_in->getState() == USB_TYPE_IDLE) {
+            if(len > 2) {
+                for (int i = 2; i < len; i++) {
+                    circ_buf.queue(buf[i]);
+                }
+            }
+//            for (int i = 0; i < len; i++) {
+//                circ_buf.queue(buf[i]);
+//            }
+            rx.call();
+            host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
+        }
+    }
+}
+
+void USB400SerialPort::txHandler()
+{
+    if (bulk_out) {
+        if (bulk_out->getState() == USB_TYPE_IDLE) {
+            tx.call();
+        }
+    }
+}
+
+int USB400SerialPort::_putc(int c)
+{
+    if (bulk_out) {
+        if (host->bulkWrite(dev, bulk_out, (uint8_t *)&c, 1) == USB_TYPE_OK) {
+            return 1;
+        }
+    }
+    return -1;
+}
+
+void USB400SerialPort::baud(int baudrate)
+{
+    line_coding.baudrate = baudrate;
+    format(line_coding.data_bits, (Parity)line_coding.parity, line_coding.stop_bits);
+}
+
+void USB400SerialPort::format(int bits, Parity parity, int stop_bits)
+{
+    line_coding.data_bits = bits;
+    line_coding.parity = parity;
+    line_coding.stop_bits = (stop_bits == 1) ? 0 : 2;
+
+    // set line coding
+    host->controlWrite( dev, 0x40, 0,      0, 0, NULL, 0);
+    host->controlWrite( dev, 0x40, 0,      1, 0, NULL, 0);
+    host->controlWrite( dev, 0x40, 0,      2, 0, NULL, 0);
+    host->controlWrite( dev, 0x40, 2, 0x0000, 0, NULL, 0); // flow control none
+    host->controlWrite( dev, 0x40, 3, 0xC034, 0, NULL, 0); // baudrate 57600
+    host->controlWrite( dev, 0x40, 4, 0x0008, 0, NULL, 0); // data bit 8, parity none, stop bit 1, tx off
+
+//    host->controlWrite( dev,
+//                        USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
+//                        SET_LINE_CODING,
+//                        0, serial_intf, (uint8_t *)&line_coding, 7);
+}
+
+int USB400SerialPort::_getc()
+{
+    uint8_t c = 0;
+    if (bulk_in == NULL) {
+        init();
+        return -1;
+    }
+    while (circ_buf.isEmpty());
+    circ_buf.dequeue(&c);
+    return c;
+}
+
+int USB400SerialPort::writeBuf(const char* b, int s)
+{
+    int c = 0;
+    if (bulk_out) {
+        while (c < s) {
+            int i = (s < size_bulk_out) ? s : size_bulk_out;
+            if (host->bulkWrite(dev, bulk_out, (uint8_t *)(b+c), i) == USB_TYPE_OK)
+                c += i;
+        }
+    }
+    return s;
+}
+
+int USB400SerialPort::readBuf(char* b, int s)
+{
+    int i = 0;
+    if (bulk_in) {
+        for (i = 0; i < s; )
+            b[i++] = getc();
+    }
+    return i;
+}
+
+uint8_t USB400SerialPort::available()
+{
+    return circ_buf.available();
+}
+
+
+
+#endif

diff -r 000000000000 -r 0dd5d1e4cf71 USB400Serial.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USB400Serial.h	Wed Dec 03 06:18:10 2014 +0000
@@ -0,0 +1,195 @@
+/* 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.
+ */
+
+/* USB400Serial Library
+ * Modified mujirushi.org
+ */
+
+#ifndef USB400SERIAL_H
+#define USB400SERIAL_H
+
+#include "USBHostConf.h"
+
+#if USBHOST_SERIAL
+
+#include "USBHost.h"
+#include "Stream.h"
+#include "MtxCircBuffer.h"
+
+/**
+ * A class to communicate a USB virtual serial port
+ */
+class USB400SerialPort : public Stream
+{
+public:
+    /**
+    * Constructor
+    */
+    USB400SerialPort();
+
+    enum IrqType {
+        RxIrq,
+        TxIrq
+    };
+
+    enum Parity {
+        None = 0,
+        Odd,
+        Even,
+        Mark,
+        Space
+    };
+
+    void connect(USBHost* _host, USBDeviceConnected * _dev,
+                 uint8_t _serial_intf, USBEndpoint* _bulk_in, USBEndpoint* _bulk_out);
+
+    /**
+    * Check the number of bytes available.
+    *
+    * @returns the number of bytes available
+    */
+    uint8_t available();
+
+    /**
+     *  Attach a member function to call when a packet is received.
+     *
+     *  @param tptr pointer to the object to call the member function on
+     *  @param mptr pointer to the member function to be called
+     *  @param irq irq type
+     */
+    template<typename T>
+    inline void attach(T* tptr, void (T::*mptr)(void), IrqType irq = RxIrq) {
+        if ((mptr != NULL) && (tptr != NULL)) {
+            if (irq == RxIrq) {
+                rx.attach(tptr, mptr);
+            } else {
+                tx.attach(tptr, mptr);
+            }
+        }
+    }
+
+    /**
+     * Attach a callback called when a packet is received
+     *
+     * @param ptr function pointer
+     */
+    inline void attach(void (*fn)(void), IrqType irq = RxIrq) {
+        if (fn != NULL) {
+            if (irq == RxIrq) {
+                rx.attach(fn);
+            } else {
+                tx.attach(fn);
+            }
+        }
+    }
+
+    /** Set the baud rate of the serial port
+     *
+     *  @param baudrate The baudrate of the serial port (default = 9600).
+     */
+    void baud(int baudrate = 9600);
+
+    /** Set the transmission format used by the Serial port
+     *
+     *  @param bits The number of bits in a word (default = 8)
+     *  @param parity The parity used (USB400SerialPort::None, USB400SerialPort::Odd, USB400SerialPort::Even, USB400SerialPort::Mark, USB400SerialPort::Space; default = USB400SerialPort::None)
+     *  @param stop The number of stop bits (1 or 2; default = 1)
+     */
+    void format(int bits = 8, Parity parity = USB400SerialPort::None, int stop_bits = 1);
+    virtual int writeBuf(const char* b, int s);
+    virtual int readBuf(char* b, int s);
+
+protected:
+    virtual int _getc();
+    virtual int _putc(int c);
+
+private:
+    USBHost * host;
+    USBDeviceConnected * dev;
+
+    USBEndpoint * bulk_in;
+    USBEndpoint * bulk_out;
+    uint32_t size_bulk_in;
+    uint32_t size_bulk_out;
+
+    void init();
+
+    MtxCircBuffer<uint8_t, 128> circ_buf;
+
+    uint8_t buf[64];
+
+    typedef struct {
+        uint32_t baudrate;
+        uint8_t stop_bits;
+        uint8_t parity;
+        uint8_t data_bits;
+    } PACKED LINE_CODING;
+
+    LINE_CODING line_coding;
+
+    void rxHandler();
+    void txHandler();
+    FunctionPointer rx;
+    FunctionPointer tx;
+
+    uint8_t serial_intf;
+};
+
+#if (USBHOST_SERIAL <= 1)
+
+class USB400Serial : public IUSBEnumerator, public USB400SerialPort
+{
+public:
+    USB400Serial();
+
+    /**
+     * Try to connect a serial device
+     *
+     * @return true if connection was successful
+     */
+    bool connect();
+
+    void disconnect();
+
+    /**
+    * Check if a any serial port is connected
+    *
+    * @returns true if a serial device is connected
+    */
+    bool connected();
+
+protected:
+    USBHost* host;
+    USBDeviceConnected* dev;
+    uint8_t port_intf;
+    int ports_found;
+
+    //From IUSBEnumerator
+    virtual void setVidPid(uint16_t vid, uint16_t pid);
+    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
+    virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
+
+private:
+    bool dev_connected;
+};
+
+#else // (USBHOST_SERIAL > 1)
+
+#endif // (USBHOST_SERIAL <= 1)
+
+#endif
+
+#endif