Diff: USBSerial/USBSerial.cpp

Revision:

0:c1e89c49eae5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBSerial/USBSerial.cpp	Sat May 14 17:24:10 2022 +0000
@@ -0,0 +1,120 @@
+/* Copyright (c) 2010-2011 mbed.org, MIT License
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+* and associated documentation files (the "Software"), to deal in the Software without
+* restriction, including without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or
+* substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include "stdint.h"
+#include "USBSerial.h"
+
+int USBSerial::_putc(int c) {
+    send((uint8_t *)&c, 1);
+    return 1;
+}
+
+int USBSerial::_getc() {
+    uint8_t c;
+    while (buf.isEmpty());
+    buf.dequeue(&c);
+    return c;
+}
+
+
+bool USBSerial::writeBlock(uint8_t * buf, uint16_t size) {
+    if(size > MAX_PACKET_SIZE_EPBULK) {
+        return false;
+    }
+    if(!send(buf, size)) {
+        return false;
+    }
+    return true;
+}
+
+
+
+bool USBSerial::EP2_OUT_callback() {
+    uint8_t c[65];
+    uint32_t size = 0;
+
+    //we read the packet received and put it on the circular buffer
+    readEP(c, &size);
+    for (int i = 0; i < size; i++) {
+        buf.queue(c[i]);
+    }
+
+    //call a potential handler
+    rx.call();
+
+    // We reactivate the endpoint to receive next characters
+    readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
+    return true;
+}
+
+uint8_t USBSerial::available() {
+    return buf.available();
+}
+
+void USBSerial::setCallbackConfig (void(*ptr)(uint32_t)){
+        fptr_cfg =  ptr;
+    }
+
+uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08};
+//uint8_t cdc_line_coding[7]= {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08};
+uint32_t baud;
+#define CDC_SET_LINE_CODING        0x20
+#define CDC_GET_LINE_CODING        0x21
+#define CDC_SET_CONTROL_LINE_STATE 0x22
+
+bool USBSerial::USBCallback_request (){
+    bool success = false;
+    CONTROL_TRANSFER * transfer = getTransferPtr();
+
+    /* Process class-specific requests */
+
+    if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
+        switch (transfer->setup.bRequest) {
+            case CDC_GET_LINE_CODING:
+                transfer->remaining = 7;
+                transfer->ptr = cdc_line_coding;
+                transfer->direction = DEVICE_TO_HOST;
+                success = true;
+                break;
+            case CDC_SET_LINE_CODING:
+                for (int i = 0; i < 7 ; i++) {cdc_line_coding[i] = *(transfer->ptr+i);}
+                transfer->remaining = 7;
+                baud = *(uint32_t*)cdc_line_coding;
+                if (fptr_cfg != NULL)(*fptr_cfg)(baud);
+                success = true;
+                break;
+            case CDC_SET_CONTROL_LINE_STATE:
+                success = true;
+                break;
+            default:
+                break;
+        }
+    }
+
+    return success;
+}
+/*
+void USBSerial::suspendStateChanged(unsigned int suspended)
+{
+    usb_state = suspended;
+}
+
+unsigned int USBSerial::GetUSBState (void){
+    return usb_state;
+}
+*/
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