00001 /* 00002 00003 Copyright (c) 2010, Embedded Adventures, www.embeddedadventures.com 00004 All rights reserved. 00005 00006 Redistribution and use in source and binary forms, with or without 00007 modification, are permitted provided that the following conditions are met: 00008 00009 - Redistributions of source code must retain the above copyright notice, 00010 this list of conditions and the following disclaimer. 00011 00012 - Redistributions in binary form must reproduce the above copyright 00013 notice, this list of conditions and the following disclaimer in the 00014 documentation and/or other materials provided with the distribution. 00015 00016 - Neither the name of Embedded Adventures nor the names of its contributors 00017 may be used to endorse or promote products derived from this software 00018 without specific prior written permission. 00019 00020 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00024 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00030 THE POSSIBILITY OF SUCH DAMAGE. 00031 00032 Contact us at admin@embeddedadventures.com 00033 00034 */ 00035 00036 00037 00038 #include "pic_term.h" 00039 00040 uns8 term_buffer[TERM_BUFFER_SIZE]; 00041 uns8 buffer_len; 00042 00043 void term_process() { 00044 00045 uns8 len, // length of string 00046 rec; // received character 00047 00048 if (serial_rx_avail()) { 00049 00050 rec = serial_getc(); // get the character from the fifo 00051 00052 #ifdef TERM_ALLOW_BOOSTBLOADER 00053 if (rec == MAGIC_BOOSTBLOADER_REQUEST) { 00054 boostbloader(); 00055 } 00056 #endif 00057 00058 00059 if (rec == '\r') { // did we press return? 00060 00061 if (buffer_len > 0) { 00062 term_entry_callback(term_buffer); 00063 } 00064 term_buffer[0] = '\0'; // clear the buffer 00065 buffer_len = 0; 00066 #ifdef TERM_ECHO_INPUT 00067 serial_putc('\n'); // print new line 00068 serial_putc('>'); // print the prompt 00069 #endif 00070 } else { 00071 if (buffer_len < TERM_BUFFER_SIZE + 2) { // space for null and new character 00072 #ifdef TERM_ECHO_INPUT 00073 serial_putc(rec); // print it out so we can see what we typed 00074 #endif 00075 term_buffer[buffer_len++] = rec; 00076 term_buffer[buffer_len] = '\0'; 00077 } 00078 } 00079 } 00080 } 00081 00082 void term_init() { 00083 00084 term_buffer[0] = '\0'; 00085 buffer_len = 0; 00086 00087 } 00088