309 lines
9.6 KiB
C++
309 lines
9.6 KiB
C++
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* parser.cpp - Parser for a GCode line, providing a parameter interface.
|
|
*/
|
|
|
|
#include "parser.h"
|
|
|
|
#include "../Marlin.h"
|
|
|
|
#if NUM_SERIAL > 1
|
|
#include "queue.h"
|
|
#endif
|
|
|
|
// Must be declared for allocation and to satisfy the linker
|
|
// Zero values need no initialization.
|
|
|
|
bool GCodeParser::volumetric_enabled;
|
|
|
|
#if ENABLED(INCH_MODE_SUPPORT)
|
|
float GCodeParser::linear_unit_factor, GCodeParser::volumetric_unit_factor;
|
|
#endif
|
|
|
|
#if ENABLED(TEMPERATURE_UNITS_SUPPORT)
|
|
TempUnit GCodeParser::input_temp_units;
|
|
#endif
|
|
|
|
char *GCodeParser::command_ptr,
|
|
*GCodeParser::string_arg,
|
|
*GCodeParser::value_ptr;
|
|
char GCodeParser::command_letter;
|
|
int GCodeParser::codenum;
|
|
#if USE_GCODE_SUBCODES
|
|
uint8_t GCodeParser::subcode;
|
|
#endif
|
|
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
// Optimized Parameters
|
|
uint32_t GCodeParser::codebits; // found bits
|
|
uint8_t GCodeParser::param[26]; // parameter offsets from command_ptr
|
|
#else
|
|
char *GCodeParser::command_args; // start of parameters
|
|
#endif
|
|
|
|
// Create a global instance of the GCode parser singleton
|
|
GCodeParser parser;
|
|
|
|
/**
|
|
* Clear all code-seen (and value pointers)
|
|
*
|
|
* Since each param is set/cleared on seen codes,
|
|
* this may be optimized by commenting out ZERO(param)
|
|
*/
|
|
void GCodeParser::reset() {
|
|
string_arg = NULL; // No whole line argument
|
|
command_letter = '?'; // No command letter
|
|
codenum = 0; // No command code
|
|
#if USE_GCODE_SUBCODES
|
|
subcode = 0; // No command sub-code
|
|
#endif
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
codebits = 0; // No codes yet
|
|
//ZERO(param); // No parameters (should be safe to comment out this line)
|
|
#endif
|
|
}
|
|
|
|
// Populate all fields by parsing a single line of GCode
|
|
// 58 bytes of SRAM are used to speed up seen/value
|
|
void GCodeParser::parse(char *p) {
|
|
|
|
reset(); // No codes to report
|
|
|
|
// Skip spaces
|
|
while (*p == ' ') ++p;
|
|
|
|
// Skip N[-0-9] if included in the command line
|
|
if (*p == 'N' && NUMERIC_SIGNED(p[1])) {
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
//set('N', p + 1); // (optional) Set the 'N' parameter value
|
|
#endif
|
|
p += 2; // skip N[-0-9]
|
|
while (NUMERIC(*p)) ++p; // skip [0-9]*
|
|
while (*p == ' ') ++p; // skip [ ]*
|
|
}
|
|
|
|
// *p now points to the current command, which should be G, M, or T
|
|
command_ptr = p;
|
|
|
|
// Get the command letter, which must be G, M, or T
|
|
const char letter = *p++;
|
|
|
|
// Nullify asterisk and trailing whitespace
|
|
char *starpos = strchr(p, '*');
|
|
if (starpos) {
|
|
--starpos; // *
|
|
while (*starpos == ' ') --starpos; // spaces...
|
|
starpos[1] = '\0';
|
|
}
|
|
|
|
// Bail if the letter is not G, M, or T
|
|
switch (letter) { case 'G': case 'M': case 'T': break; default: return; }
|
|
|
|
// Skip spaces to get the numeric part
|
|
while (*p == ' ') p++;
|
|
|
|
// Bail if there's no command code number
|
|
if (!NUMERIC(*p)) return;
|
|
|
|
// Save the command letter at this point
|
|
// A '?' signifies an unknown command
|
|
command_letter = letter;
|
|
|
|
// Get the code number - integer digits only
|
|
codenum = 0;
|
|
do {
|
|
codenum *= 10, codenum += *p++ - '0';
|
|
} while (NUMERIC(*p));
|
|
|
|
// Allow for decimal point in command
|
|
#if USE_GCODE_SUBCODES
|
|
if (*p == '.') {
|
|
p++;
|
|
while (NUMERIC(*p))
|
|
subcode *= 10, subcode += *p++ - '0';
|
|
}
|
|
#endif
|
|
|
|
// Skip all spaces to get to the first argument, or nul
|
|
while (*p == ' ') p++;
|
|
|
|
// The command parameters (if any) start here, for sure!
|
|
|
|
#if DISABLED(FASTER_GCODE_PARSER)
|
|
command_args = p; // Scan for parameters in seen()
|
|
#endif
|
|
|
|
// Only use string_arg for these M codes
|
|
if (letter == 'M') switch (codenum) { case 23: case 28: case 30: case 117: case 928: string_arg = p; return; default: break; }
|
|
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
const bool debug = codenum == 800;
|
|
#endif
|
|
|
|
/**
|
|
* Find all parameters, set flags and pointers for fast parsing
|
|
*
|
|
* Most codes ignore 'string_arg', but those that want a string will get the right pointer.
|
|
* The following loop assigns the first "parameter" having no numeric value to 'string_arg'.
|
|
* This allows M0/M1 with expire time to work: "M0 S5 You Win!"
|
|
* For 'M118' you must use 'E1' and 'A1' rather than just 'E' or 'A'
|
|
*/
|
|
string_arg = NULL;
|
|
while (const char code = *p++) { // Get the next parameter. A NUL ends the loop
|
|
|
|
// Special handling for M32 [P] !/path/to/file.g#
|
|
// The path must be the last parameter
|
|
if (code == '!' && letter == 'M' && codenum == 32) {
|
|
string_arg = p; // Name starts after '!'
|
|
char * const lb = strchr(p, '#'); // Already seen '#' as SD char (to pause buffering)
|
|
if (lb) *lb = '\0'; // Safe to mark the end of the filename
|
|
return;
|
|
}
|
|
|
|
// Arguments MUST be uppercase for fast GCode parsing
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
#define PARAM_TEST WITHIN(code, 'A', 'Z')
|
|
#else
|
|
#define PARAM_TEST true
|
|
#endif
|
|
|
|
if (PARAM_TEST) {
|
|
|
|
while (*p == ' ') p++; // Skip spaces between parameters & values
|
|
|
|
const bool has_num = valid_float(p);
|
|
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
if (debug) {
|
|
SERIAL_ECHOPAIR("Got letter ", code);
|
|
SERIAL_ECHOPAIR(" at index ", (int)(p - command_ptr - 1));
|
|
if (has_num) SERIAL_ECHOPGM(" (has_num)");
|
|
}
|
|
#endif
|
|
|
|
if (!has_num && !string_arg) { // No value? First time, keep as string_arg
|
|
string_arg = p - 1;
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
if (debug) SERIAL_ECHOPAIR(" string_arg: ", hex_address((void*)string_arg)); // DEBUG
|
|
#endif
|
|
}
|
|
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
if (debug) SERIAL_EOL();
|
|
#endif
|
|
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
set(code, has_num ? p : NULL); // Set parameter exists and pointer (NULL for no number)
|
|
#endif
|
|
}
|
|
else if (!string_arg) { // Not A-Z? First time, keep as the string_arg
|
|
string_arg = p - 1;
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
if (debug) SERIAL_ECHOPAIR(" string_arg: ", hex_address((void*)string_arg)); // DEBUG
|
|
#endif
|
|
}
|
|
|
|
if (!WITHIN(*p, 'A', 'Z')) { // Another parameter right away?
|
|
while (*p && DECIMAL_SIGNED(*p)) p++; // Skip over the value section of a parameter
|
|
while (*p == ' ') p++; // Skip over all spaces
|
|
}
|
|
}
|
|
}
|
|
|
|
#if ENABLED(CNC_COORDINATE_SYSTEMS)
|
|
|
|
// Parse the next parameter as a new command
|
|
bool GCodeParser::chain() {
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
char *next_command = command_ptr;
|
|
if (next_command) {
|
|
while (*next_command && *next_command != ' ') ++next_command;
|
|
while (*next_command == ' ') ++next_command;
|
|
if (!*next_command) next_command = NULL;
|
|
}
|
|
#else
|
|
const char *next_command = command_args;
|
|
#endif
|
|
if (next_command) parse(next_command);
|
|
return !!next_command;
|
|
}
|
|
|
|
#endif // CNC_COORDINATE_SYSTEMS
|
|
|
|
void GCodeParser::unknown_command_error() {
|
|
#if NUM_SERIAL > 1
|
|
const int16_t port = command_queue_port[cmd_queue_index_r];
|
|
#endif
|
|
SERIAL_ECHO_START_P(port);
|
|
SERIAL_ECHOPAIR_P(port, MSG_UNKNOWN_COMMAND, command_ptr);
|
|
SERIAL_CHAR_P(port, '"');
|
|
SERIAL_EOL_P(port);
|
|
}
|
|
|
|
#if ENABLED(DEBUG_GCODE_PARSER)
|
|
|
|
void GCodeParser::debug() {
|
|
SERIAL_ECHOPAIR("Command: ", command_ptr);
|
|
SERIAL_ECHOPAIR(" (", command_letter);
|
|
SERIAL_ECHO(codenum);
|
|
SERIAL_ECHOLNPGM(")");
|
|
#if ENABLED(FASTER_GCODE_PARSER)
|
|
SERIAL_ECHOPGM(" args: \"");
|
|
for (char c = 'A'; c <= 'Z'; ++c)
|
|
if (seen(c)) { SERIAL_CHAR(c); SERIAL_CHAR(' '); }
|
|
#else
|
|
SERIAL_ECHOPAIR(" args: \"", command_args);
|
|
#endif
|
|
SERIAL_CHAR('"');
|
|
if (string_arg) {
|
|
SERIAL_ECHOPGM(" string: \"");
|
|
SERIAL_ECHO(string_arg);
|
|
SERIAL_CHAR('"');
|
|
}
|
|
SERIAL_ECHOPGM("\n\n");
|
|
for (char c = 'A'; c <= 'Z'; ++c) {
|
|
if (seen(c)) {
|
|
SERIAL_ECHOPAIR("Code '", c); SERIAL_ECHOPGM("':");
|
|
if (has_value()) {
|
|
SERIAL_ECHOPAIR("\n float: ", value_float());
|
|
SERIAL_ECHOPAIR("\n long: ", value_long());
|
|
SERIAL_ECHOPAIR("\n ulong: ", value_ulong());
|
|
SERIAL_ECHOPAIR("\n millis: ", value_millis());
|
|
SERIAL_ECHOPAIR("\n sec-ms: ", value_millis_from_seconds());
|
|
SERIAL_ECHOPAIR("\n int: ", value_int());
|
|
SERIAL_ECHOPAIR("\n ushort: ", value_ushort());
|
|
SERIAL_ECHOPAIR("\n byte: ", (int)value_byte());
|
|
SERIAL_ECHOPAIR("\n bool: ", (int)value_bool());
|
|
SERIAL_ECHOPAIR("\n linear: ", value_linear_units());
|
|
SERIAL_ECHOPAIR("\n celsius: ", value_celsius());
|
|
}
|
|
else
|
|
SERIAL_ECHOPGM(" (no value)");
|
|
SERIAL_ECHOPGM("\n\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // DEBUG_GCODE_PARSER
|