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a5cf3a190c
* Fix mistake in gitignore file and add in missing core files. The missing leading slash on "lib" meant all folders names lib in the directory tree are ignored, rather than just the top level PlatformIO lib folder * Add LiquidCrystal Library and associated headers modified to compile.
259 lines
9.9 KiB
C++
259 lines
9.9 KiB
C++
/*----------------------------------------------------------------------------
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* U S B - K e r n e l
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*----------------------------------------------------------------------------
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* Name: cdcuser.c
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* Purpose: USB Communication Device Class User module
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* Version: V1.10
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*----------------------------------------------------------------------------
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* This software is supplied "AS IS" without any warranties, express,
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* implied or statutory, including but not limited to the implied
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* warranties of fitness for purpose, satisfactory quality and
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* noninfringement. Keil extends you a royalty-free right to reproduce
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* and distribute executable files created using this software for use
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* on NXP Semiconductors LPC microcontroller devices only. Nothing else
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* gives you the right to use this software.
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*
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* Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
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*---------------------------------------------------------------------------*/
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extern "C" {
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#include <lpc_types.h>
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#include <debug_frmwrk.h>
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}
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#include "usb.h"
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#include "usbhw.h"
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#include "usbcfg.h"
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#include "usbcore.h"
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#include "cdc.h"
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#include "cdcuser.h"
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#include <HAL_LPC1768/serial.h>
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unsigned char BulkBufIn[USB_CDC_BUFSIZE]; // Buffer to store USB IN packet
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unsigned char BulkBufOut[USB_CDC_BUFSIZE]; // Buffer to store USB OUT packet
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unsigned char NotificationBuf[10];
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CDC_LINE_CODING CDC_LineCoding = { 921600, 0, 0, 8 };
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unsigned short CDC_DepInEmpty = 1; // Data IN EP is empty
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unsigned short CDC_LineState = 0;
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unsigned short CDC_SerialState = 0;
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extern HalSerial usb_serial;
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/*----------------------------------------------------------------------------
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write data to CDC_OutBuf
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*---------------------------------------------------------------------------*/
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uint32_t CDC_WrOutBuf(const char *buffer, uint32_t *length) {
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uint32_t bytesToWrite, bytesWritten;
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// Write *length bytes
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bytesToWrite = *length;
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bytesWritten = bytesToWrite;
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while (bytesToWrite) {
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usb_serial.receive_buffer.write(*buffer++); // Copy Data to buffer
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bytesToWrite--;
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}
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return (bytesWritten);
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}
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/*----------------------------------------------------------------------------
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check if character(s) are available at CDC_OutBuf
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*---------------------------------------------------------------------------*/
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uint32_t CDC_OutBufAvailChar(uint32_t *availChar) {
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*availChar = usb_serial.transmit_buffer.available();
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return (0);
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}
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/* end Buffer handling */
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/*----------------------------------------------------------------------------
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CDC Initialisation
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Initializes the data structures and serial port
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Parameters: None
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Return Value: None
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*---------------------------------------------------------------------------*/
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void CDC_Init() {
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CDC_DepInEmpty = 1;
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}
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/*----------------------------------------------------------------------------
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CDC SendEncapsulatedCommand Request Callback
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Called automatically on CDC SEND_ENCAPSULATED_COMMAND Request
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Parameters: None (global SetupPacket and EP0Buf)
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_SendEncapsulatedCommand(void) {
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC GetEncapsulatedResponse Request Callback
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Called automatically on CDC Get_ENCAPSULATED_RESPONSE Request
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Parameters: None (global SetupPacket and EP0Buf)
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_GetEncapsulatedResponse(void) {
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/* ... add code to handle request */
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC SetCommFeature Request Callback
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Called automatically on CDC Set_COMM_FATURE Request
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Parameters: FeatureSelector
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_SetCommFeature(unsigned short wFeatureSelector) {
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/* ... add code to handle request */
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC GetCommFeature Request Callback
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Called automatically on CDC Get_COMM_FATURE Request
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Parameters: FeatureSelector
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_GetCommFeature(unsigned short wFeatureSelector) {
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/* ... add code to handle request */
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC ClearCommFeature Request Callback
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Called automatically on CDC CLEAR_COMM_FATURE Request
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Parameters: FeatureSelector
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_ClearCommFeature(unsigned short wFeatureSelector) {
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/* ... add code to handle request */
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC SetLineCoding Request Callback
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Called automatically on CDC SET_LINE_CODING Request
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Parameters: none (global SetupPacket and EP0Buf)
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_SetLineCoding(void) {
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CDC_LineCoding.dwDTERate = (EP0Buf[0] << 0) | (EP0Buf[1] << 8) | (EP0Buf[2] << 16) | (EP0Buf[3] << 24);
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CDC_LineCoding.bCharFormat = EP0Buf[4];
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CDC_LineCoding.bParityType = EP0Buf[5];
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CDC_LineCoding.bDataBits = EP0Buf[6];
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC GetLineCoding Request Callback
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Called automatically on CDC GET_LINE_CODING Request
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Parameters: None (global SetupPacket and EP0Buf)
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_GetLineCoding(void) {
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EP0Buf[0] = (CDC_LineCoding.dwDTERate >> 0) & 0xFF;
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EP0Buf[1] = (CDC_LineCoding.dwDTERate >> 8) & 0xFF;
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EP0Buf[2] = (CDC_LineCoding.dwDTERate >> 16) & 0xFF;
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EP0Buf[3] = (CDC_LineCoding.dwDTERate >> 24) & 0xFF;
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EP0Buf[4] = CDC_LineCoding.bCharFormat;
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EP0Buf[5] = CDC_LineCoding.bParityType;
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EP0Buf[6] = CDC_LineCoding.bDataBits;
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC SetControlLineState Request Callback
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Called automatically on CDC SET_CONTROL_LINE_STATE Request
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Parameters: ControlSignalBitmap
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_SetControlLineState(unsigned short wControlSignalBitmap) {
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CDC_LineState = wControlSignalBitmap;
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usb_serial.host_connected = wControlSignalBitmap > 0 ? true : false;
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return true;
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}
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/*----------------------------------------------------------------------------
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CDC SendBreak Request Callback
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Called automatically on CDC Set_COMM_FATURE Request
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Parameters: 0xFFFF start of Break
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0x0000 stop of Break
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0x#### Duration of Break
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Return Value: TRUE - Success, FALSE - Error
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*---------------------------------------------------------------------------*/
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uint32_t CDC_SendBreak(unsigned short wDurationOfBreak) {
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/* ... add code to handle request */
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return (TRUE);
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}
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/*----------------------------------------------------------------------------
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CDC_BulkIn call on DataIn Request
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Parameters: none
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Return Value: none
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*---------------------------------------------------------------------------*/
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void CDC_BulkIn(void) {
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uint32_t numBytesAvail = usb_serial.transmit_buffer.available();
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if (numBytesAvail > 0) {
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numBytesAvail = numBytesAvail > (USB_CDC_BUFSIZE - 1) ? (USB_CDC_BUFSIZE - 1) : numBytesAvail;
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for(uint32_t i = 0; i < numBytesAvail; ++i) {
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BulkBufIn[i] = usb_serial.transmit_buffer.read(); //todo: optimise
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}
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USB_WriteEP(CDC_DEP_IN, &BulkBufIn[0], numBytesAvail);
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} else {
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CDC_DepInEmpty = 1;
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}
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}
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/*----------------------------------------------------------------------------
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CDC_BulkOut call on DataOut Request
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Parameters: none
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Return Value: none
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*---------------------------------------------------------------------------*/
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void CDC_BulkOut(void) {
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uint32_t numBytesRead = USB_ReadEP(CDC_DEP_OUT, &BulkBufOut[0]);
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CDC_WrOutBuf((char *) &BulkBufOut[0], &numBytesRead);
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}
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/*----------------------------------------------------------------------------
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Get the SERIAL_STATE as defined in usbcdc11.pdf, 6.3.5, Table 69.
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Parameters: none
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Return Value: SerialState as defined in usbcdc11.pdf
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*---------------------------------------------------------------------------*/
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unsigned short CDC_GetSerialState(void) {
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CDC_SerialState = CDC_LineState;
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//todo: detect buffer overrun
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return (CDC_SerialState);
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}
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/*----------------------------------------------------------------------------
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Send the SERIAL_STATE notification as defined in usbcdc11.pdf, 6.3.5.
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*---------------------------------------------------------------------------*/
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void CDC_NotificationIn(void) {
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NotificationBuf[0] = 0xA1; // bmRequestType
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NotificationBuf[1] = CDC_NOTIFICATION_SERIAL_STATE; // bNotification (SERIAL_STATE)
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NotificationBuf[2] = 0x00; // wValue
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NotificationBuf[3] = 0x00;
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NotificationBuf[4] = 0x00; // wIndex (Interface #, LSB first)
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NotificationBuf[5] = 0x00;
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NotificationBuf[6] = 0x02; // wLength (Data length = 2 bytes, LSB first)
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NotificationBuf[7] = 0x00;
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NotificationBuf[8] = (CDC_SerialState >> 0) & 0xFF; // UART State Bitmap (16bits, LSB first)
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NotificationBuf[9] = (CDC_SerialState >> 8) & 0xFF;
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USB_WriteEP(CDC_CEP_IN, &NotificationBuf[0], 10); // send notification
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}
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