Meindert Kuipers / Mbed 2 deprecated MMEx_Challenge

MMEx with SPI Slave to allow legacy devices to communicate with modern media such as USB, SD cards, the internet and all of the mbed\'s other interfaces

Dependencies:   NetServices MSCUsbHost mbed TMP102 SDFileSystem

rfuncs.cpp@0:67a55a82ce06, 2011-02-27 (annotated)

Committer:
DeMein
Date:
Sun Feb 27 18:54:40 2011 +0000
Revision:
0:67a55a82ce06
Version as submitted to the NXP Design Challenge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DeMein 0:67a55a82ce06 1 /* MMEx for MBED - RPC Command processing
DeMein 0:67a55a82ce06 2 * Copyright (c) 2011 MK
DeMein 0:67a55a82ce06 3 *
DeMein 0:67a55a82ce06 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
DeMein 0:67a55a82ce06 5 * of this software and associated documentation files (the "Software"), to deal
DeMein 0:67a55a82ce06 6 * in the Software without restriction, including without limitation the rights
DeMein 0:67a55a82ce06 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
DeMein 0:67a55a82ce06 8 * copies of the Software, and to permit persons to whom the Software is
DeMein 0:67a55a82ce06 9 * furnished to do so, subject to the following conditions:
DeMein 0:67a55a82ce06 10 *
DeMein 0:67a55a82ce06 11 * The above copyright notice and this permission notice shall be included in
DeMein 0:67a55a82ce06 12 * all copies or substantial portions of the Software.
DeMein 0:67a55a82ce06 13 *
DeMein 0:67a55a82ce06 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
DeMein 0:67a55a82ce06 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
DeMein 0:67a55a82ce06 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
DeMein 0:67a55a82ce06 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
DeMein 0:67a55a82ce06 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DeMein 0:67a55a82ce06 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
DeMein 0:67a55a82ce06 20 * THE SOFTWARE.
DeMein 0:67a55a82ce06 21 */
DeMein 0:67a55a82ce06 22
DeMein 0:67a55a82ce06 23 /**
DeMein 0:67a55a82ce06 24 \file rfuncs.cpp
DeMein 0:67a55a82ce06 25 \brief Commands starting with R or / for processing RPC
DeMein 0:67a55a82ce06 26 */
DeMein 0:67a55a82ce06 27
DeMein 0:67a55a82ce06 28 #include "rfuncs.h"
DeMein 0:67a55a82ce06 29
DeMein 0:67a55a82ce06 30 /** main entry for parsing R- or /-commands
DeMein 0:67a55a82ce06 31 *
DeMein 0:67a55a82ce06 32 */
DeMein 0:67a55a82ce06 33 void parse_R() {
DeMein 0:67a55a82ce06 34 DBG_msg("parse_R", inbuf);
DeMein 0:67a55a82ce06 35 err_num = noerror;
DeMein 0:67a55a82ce06 36
DeMein 0:67a55a82ce06 37 if (inbuf[1] != NULL) {
DeMein 0:67a55a82ce06 38 switch (inbuf[1]) {
DeMein 0:67a55a82ce06 39 case rslash : do_rslash();
DeMein 0:67a55a82ce06 40 break;
DeMein 0:67a55a82ce06 41 case rresult : do_rresult();
DeMein 0:67a55a82ce06 42 break;
DeMein 0:67a55a82ce06 43 case rxeq : do_rxeq();
DeMein 0:67a55a82ce06 44 break;
DeMein 0:67a55a82ce06 45 default : do_rdefault(); // command not recognized
DeMein 0:67a55a82ce06 46 break;
DeMein 0:67a55a82ce06 47 }
DeMein 0:67a55a82ce06 48 } else { do_rdefault(); }
DeMein 0:67a55a82ce06 49 }
DeMein 0:67a55a82ce06 50
DeMein 0:67a55a82ce06 51 /** Define the value of the PC command string
DeMein 0:67a55a82ce06 52 *
DeMein 0:67a55a82ce06 53 * syntax: R/[string] define new RPX command (same as //)
DeMein 0:67a55a82ce06 54 * \n or: R/>+[string] appends to existing RPC string
DeMein 0:67a55a82ce06 55 *
DeMein 0:67a55a82ce06 56 */
DeMein 0:67a55a82ce06 57 void do_rslash() {
DeMein 0:67a55a82ce06 58 DBG_msg("do_rslash", inbuf);
DeMein 0:67a55a82ce06 59
DeMein 0:67a55a82ce06 60 while (inbuf[2] == c_space) remchar(inbuf, 2, 1); // remove leading space
DeMein 0:67a55a82ce06 61 remchar(inbuf, 0, 1); // remove the R of 1st slash
DeMein 0:67a55a82ce06 62
DeMein 0:67a55a82ce06 63 // now retrieve string from the command line, i starts at 3
DeMein 0:67a55a82ce06 64
DeMein 0:67a55a82ce06 65 // if first chars are not ">+" the string will be new
DeMein 0:67a55a82ce06 66 if ((inbuf[3] == c_escape) && (inbuf[4] == c_append)) {
DeMein 0:67a55a82ce06 67 // string is append, >+ from inbuf
DeMein 0:67a55a82ce06 68 remchar(inbuf, 1, 2);
DeMein 0:67a55a82ce06 69 DBG_msg("append RPC cmd", inbuf);
DeMein 0:67a55a82ce06 70 param[par_R_].append(inbuf);
DeMein 0:67a55a82ce06 71 } else {
DeMein 0:67a55a82ce06 72 DBG_msg("new RPC cmd ", inbuf);
DeMein 0:67a55a82ce06 73 param[par_R_].assign(inbuf); // no append, assign string
DeMein 0:67a55a82ce06 74 }
DeMein 0:67a55a82ce06 75 }
DeMein 0:67a55a82ce06 76
DeMein 0:67a55a82ce06 77 /** Return the result of the previous RPC operation
DeMein 0:67a55a82ce06 78 *
DeMein 0:67a55a82ce06 79 * syntax: RR or /R
DeMein 0:67a55a82ce06 80 */
DeMein 0:67a55a82ce06 81 void do_rresult() {
DeMein 0:67a55a82ce06 82 char * cstr;
DeMein 0:67a55a82ce06 83
DeMein 0:67a55a82ce06 84 DBG_msg("do_rresult", inbuf);
DeMein 0:67a55a82ce06 85 cstr = new char [param[par_S_].size() + 1];
DeMein 0:67a55a82ce06 86 strcpy(cstr, param[par_S_].c_str());
DeMein 0:67a55a82ce06 87 DBG_msg("RPC result", cstr);
DeMein 0:67a55a82ce06 88 upstring(cstr);
DeMein 0:67a55a82ce06 89 mldl.tx_string(cstr);
DeMein 0:67a55a82ce06 90 delete[] cstr;
DeMein 0:67a55a82ce06 91 }
DeMein 0:67a55a82ce06 92
DeMein 0:67a55a82ce06 93 /** Execute the current RPC string
DeMein 0:67a55a82ce06 94 *
DeMein 0:67a55a82ce06 95 * syntax: RX or /X
DeMein 0:67a55a82ce06 96 */
DeMein 0:67a55a82ce06 97 void do_rxeq() {
DeMein 0:67a55a82ce06 98 char outbuf[256];
DeMein 0:67a55a82ce06 99 char * cstr;
DeMein 0:67a55a82ce06 100
DeMein 0:67a55a82ce06 101 DBG_msg("do_rxeq", inbuf);
DeMein 0:67a55a82ce06 102
DeMein 0:67a55a82ce06 103 cstr = new char [param[par_R_].size() + 1];
DeMein 0:67a55a82ce06 104 strcpy(cstr, param[par_R_].c_str());
DeMein 0:67a55a82ce06 105 DBG_msg("RPC execute", cstr);
DeMein 0:67a55a82ce06 106
DeMein 0:67a55a82ce06 107 rpc(cstr, outbuf); // do the RPC
DeMein 0:67a55a82ce06 108 delete[] cstr;
DeMein 0:67a55a82ce06 109
DeMein 0:67a55a82ce06 110 DBG_msg("RPC result", outbuf);
DeMein 0:67a55a82ce06 111 param[par_S_].assign(outbuf); // store result
DeMein 0:67a55a82ce06 112 }
DeMein 0:67a55a82ce06 113
DeMein 0:67a55a82ce06 114 /** send error message, command not recognized
DeMein 0:67a55a82ce06 115 *
DeMein 0:67a55a82ce06 116 */
DeMein 0:67a55a82ce06 117 void do_rdefault() {
DeMein 0:67a55a82ce06 118 DBG_msg("do_rdefault", inbuf);
DeMein 0:67a55a82ce06 119 send_error(err_notrecognized);
DeMein 0:67a55a82ce06 120 }