129 lines
4.3 KiB
C
129 lines
4.3 KiB
C
//#define POLLED_USBSERIAL TRUE
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/*
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LPCUSB, an USB device driver for LPC microcontrollers
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Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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Minimal implementation of a USB serial port, using the CDC class.
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This example application simply echoes everything it receives right back
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to the host.
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Windows:
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Extract the usbser.sys file from .cab file in C:\WINDOWS\Driver Cache\i386
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and store it somewhere (C:\temp is a good place) along with the usbser.inf
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file. Then plug in the LPC176x and direct windows to the usbser driver.
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Windows then creates an extra COMx port that you can open in a terminal
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program, like hyperterminal.
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Linux:
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The device should be recognised automatically by the cdc_acm driver,
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which creates a /dev/ttyACMx device file that acts just like a regular
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serial port.
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*/
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/* Modified by Sagar G V, Feb 2011
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Used the USB CDC example to create a library. Added the following functions
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void VCOM_puts(const char* str); //writes a null terminated string.
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void VCOM_putc(char c); // writes a character.
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void VCOM_putHex(uint8_t hex); // writes 0x.. hex value on the terminal.
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char VCOM_getc(); // returns character entered in the terminal. blocking function
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void VCOM_gets(char* str); // returns a string. '\r' or '\n' will terminate character collection.
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char VCOM_getc_echo(); // returns character entered and echoes the same back.
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void VCOM_gets_echo(char *str); // gets string terminated in '\r' or '\n' and echoes back the same.
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*/
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#ifndef __USB_SERIAL_H__
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#define __USB_SERIAL_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdarg.h>
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#include "LPC17xx.h"
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#include "usbapi.h"
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#include "usbdebug.h"
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#define BAUD_RATE 115200
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#define INT_IN_EP 0x81
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#define BULK_OUT_EP 0x05
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#define BULK_IN_EP 0x82
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#define MAX_PACKET_SIZE 64
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#define LE_WORD(x) ((x)&0xFF),((x)>>8)
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// CDC definitions
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#define CS_INTERFACE 0x24
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#define CS_ENDPOINT 0x25
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#define SET_LINE_CODING 0x20
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#define GET_LINE_CODING 0x21
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#define SET_CONTROL_LINE_STATE 0x22
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#include "serial_fifo.h"
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int usbSerialInit(); // run once in main b4 main loop starts.
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/*
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Writes one character to VCOM port
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@param [in] c character to write
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@returns character written, or EOF if character could not be written
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*/
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int VCOM_putchar(int c);
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/**
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Reads one character from VCOM port
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@returns character read, or EOF if character could not be read
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*/
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int VCOM_getchar(void);
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void VCOM_puts(const char* str); //writes a null terminated string.
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void VCOM_putc(char c); // writes a character.
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void VCOM_putHex(uint8_t hex); // writes 0x.. hex value on the terminal.
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char VCOM_getc(); // returns character entered in the terminal. blocking function
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void VCOM_gets(char* str); // returns a string. '\r' or '\n' will terminate character collection.
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char VCOM_getc_echo(); // returns character entered and echoes the same back.
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void VCOM_gets_echo(char *str); // gets string terminated in '\r' or '\n' and echoes back the same.
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void VCOM_printf(const char* str, ...); // Original code by Elm_CHaN. Modified by Martin Thomas
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#ifdef __cplusplus
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}
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#endif
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#endif |