From f1ed3103221756022785c6e0a1a133336ff7133a Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Mon, 28 Mar 2016 03:52:49 -0700 Subject: [PATCH 1/5] Add NUMERIC compare macros to simplify code --- Marlin/Marlin_main.cpp | 8 ++++---- Marlin/macros.h | 2 ++ 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index 38eef424c..d08f925cc 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -1060,7 +1060,7 @@ bool code_has_value() { while (c == ' ') c = seen_pointer[++i]; if (c == '-' || c == '+') c = seen_pointer[++i]; if (c == '.') c = seen_pointer[++i]; - return (c >= '0' && c <= '9'); + return NUMERIC(c); } float code_value() { @@ -6066,9 +6066,9 @@ void process_next_command() { // - Bypass N[-0-9][0-9]*[ ]* // - Overwrite * with nul to mark the end while (*current_command == ' ') ++current_command; - if (*current_command == 'N' && ((current_command[1] >= '0' && current_command[1] <= '9') || current_command[1] == '-')) { + if (*current_command == 'N' && NUMERIC_SIGNED(current_command[1])) { current_command += 2; // skip N[-0-9] - while (*current_command >= '0' && *current_command <= '9') ++current_command; // skip [0-9]* + while (NUMERIC(*current_command)) ++current_command; // skip [0-9]* while (*current_command == ' ') ++current_command; // skip [ ]* } char* starpos = strchr(current_command, '*'); // * should always be the last parameter @@ -6668,7 +6668,7 @@ void ok_to_send() { if (*p == 'N') { SERIAL_PROTOCOL(' '); SERIAL_ECHO(*p++); - while ((*p >= '0' && *p <= '9') || *p == '-') + while (NUMERIC_SIGNED(*p)) SERIAL_ECHO(*p++); } SERIAL_PROTOCOLPGM(" P"); SERIAL_PROTOCOL(int(BLOCK_BUFFER_SIZE - movesplanned() - 1)); diff --git a/Marlin/macros.h b/Marlin/macros.h index 966fc48d0..c2ff0044f 100644 --- a/Marlin/macros.h +++ b/Marlin/macros.h @@ -51,6 +51,8 @@ #define ENABLED(b) _CAT(SWITCH_ENABLED_, b) #define DISABLED(b) (!_CAT(SWITCH_ENABLED_, b)) +#define NUMERIC(a) ((a) >= '0' && '9' >= (a)) +#define NUMERIC_SIGNED(a) (NUMERIC(a) || (a) == '-') #define COUNT(a) (sizeof(a)/sizeof(*a)) #endif //__MACROS_H From 5f8e52aefb62035158fb667eb2ac2efb02032b39 Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Mon, 28 Mar 2016 03:53:09 -0700 Subject: [PATCH 2/5] Minor cleanup to command dispatcher --- Marlin/Marlin_main.cpp | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index d08f925cc..9df5fa6a2 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -6082,25 +6082,22 @@ void process_next_command() { // Skip spaces to get the numeric part while (*cmd_ptr == ' ') cmd_ptr++; - // The code must have a numeric value - bool code_is_good = false; + uint16_t codenum = 0; // define ahead of goto - int codenum = 0; // define ahead of goto + // Bail early if there's no code + bool code_is_good = NUMERIC(*cmd_ptr); + if (!code_is_good) goto ExitUnknownCommand; // Get and skip the code number - while (*cmd_ptr >= '0' && *cmd_ptr <= '9') { - code_is_good = true; - codenum = codenum * 10 + *cmd_ptr - '0'; + do { + codenum = (codenum * 10) + (*cmd_ptr - '0'); cmd_ptr++; - } - - // Bail early if there's no code - if (!code_is_good) goto ExitUnknownCommand; + } while (NUMERIC(*cmd_ptr)); - // Skip all spaces to get to the first argument + // Skip all spaces to get to the first argument, or nul while (*cmd_ptr == ' ') cmd_ptr++; - // The command's arguments start here, for sure! + // The command's arguments (if any) start here, for sure! current_command_args = cmd_ptr; KEEPALIVE_STATE(IN_HANDLER); From 3dcf6d42ff068c6e3c3bcfe908acc7aecff30931 Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Mon, 28 Mar 2016 04:36:14 -0700 Subject: [PATCH 3/5] Don't store escaped serial characters if comment_mode --- Marlin/Marlin_main.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index 9df5fa6a2..de155a122 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -978,7 +978,7 @@ void get_command() { if (MYSERIAL.available() > 0) { // if we have one more character, copy it over serial_char = MYSERIAL.read(); - serial_line_buffer[serial_count++] = serial_char; + if (!serial_comment_mode) serial_line_buffer[serial_count++] = serial_char; } // otherwise do nothing } From 545f7997eacb3018e956cc6235eb3c8cf937ba9a Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Mon, 28 Mar 2016 04:42:51 -0700 Subject: [PATCH 4/5] Continue on empty lines instead of returning --- Marlin/Marlin_main.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index de155a122..423be9d53 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -893,7 +893,7 @@ void get_command() { serial_comment_mode = false; // end of line == end of comment - if (!serial_count) return; // empty lines just exit + if (!serial_count) continue; // skip empty lines serial_line_buffer[serial_count] = 0; // terminate string serial_count = 0; //reset buffer From 0b8ef5eba65e8262642100425ee6b43e6e10b58d Mon Sep 17 00:00:00 2001 From: Scott Lahteine Date: Mon, 28 Mar 2016 05:25:27 -0700 Subject: [PATCH 5/5] Split get_command into units, rename to get_available_commands --- Marlin/Marlin.h | 3 --- Marlin/Marlin_main.cpp | 45 +++++++++++++++++++++++++++--------------- 2 files changed, 29 insertions(+), 19 deletions(-) diff --git a/Marlin/Marlin.h b/Marlin/Marlin.h index 787cb1210..1294b5ebe 100644 --- a/Marlin/Marlin.h +++ b/Marlin/Marlin.h @@ -109,7 +109,6 @@ void serial_echopair_P(const char* s_P, float v); void serial_echopair_P(const char* s_P, double v); void serial_echopair_P(const char* s_P, unsigned long v); - // Things to write to serial from Program memory. Saves 400 to 2k of RAM. FORCE_INLINE void serialprintPGM(const char* str) { char ch; @@ -119,8 +118,6 @@ FORCE_INLINE void serialprintPGM(const char* str) { } } -void get_command(); - void idle( #if ENABLED(FILAMENTCHANGEENABLE) bool no_stepper_sleep=false // pass true to keep steppers from disabling on timeout diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index 423be9d53..f3fb8876d 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -462,6 +462,7 @@ static bool send_ok[BUFSIZE]; * *************************************************************************** */ +void get_available_commands(); void process_next_command(); void plan_arc(float target[NUM_AXIS], float* offset, uint8_t clockwise); @@ -804,7 +805,7 @@ void setup() { * - Call LCD update */ void loop() { - if (commands_in_queue < BUFSIZE) get_command(); + if (commands_in_queue < BUFSIZE) get_available_commands(); #if ENABLED(SDSUPPORT) card.checkautostart(false); @@ -856,24 +857,16 @@ void gcode_line_error(const char* err, bool doFlush = true) { serial_count = 0; } -/** - * Add to the circular command queue the next command from: - * - The command-injection queue (queued_commands_P) - * - The active serial input (usually USB) - * - The SD card file being actively printed - */ -void get_command() { - +inline void get_serial_commands() { static char serial_line_buffer[MAX_CMD_SIZE]; static boolean serial_comment_mode = false; - if (drain_queued_commands_P()) return; // priority is given to non-serial commands - + // If the command buffer is empty for too long, + // send "wait" to indicate Marlin is still waiting. #if defined(NO_TIMEOUTS) && NO_TIMEOUTS > 0 static millis_t last_command_time = 0; millis_t ms = millis(); - - if (!MYSERIAL.available() && commands_in_queue == 0 && ms - last_command_time > NO_TIMEOUTS) { + if (commands_in_queue == 0 && !MYSERIAL.available() && ms > last_command_time + NO_TIMEOUTS) { SERIAL_ECHOLNPGM(MSG_WAIT); last_command_time = ms; } @@ -988,9 +981,11 @@ void get_command() { } } // queue has space, serial has data +} - #if ENABLED(SDSUPPORT) +#if ENABLED(SDSUPPORT) + inline void get_sdcard_commands() { static bool stop_buffering = false, sd_comment_mode = false; @@ -1050,8 +1045,26 @@ void get_command() { if (!sd_comment_mode) command_queue[cmd_queue_index_w][sd_count++] = sd_char; } } + } - #endif // SDSUPPORT +#endif // SDSUPPORT + +/** + * Add to the circular command queue the next command from: + * - The command-injection queue (queued_commands_P) + * - The active serial input (usually USB) + * - The SD card file being actively printed + */ +void get_available_commands() { + + // if any immediate commands remain, don't get other commands yet + if (drain_queued_commands_P()) return; + + get_serial_commands(); + + #if ENABLED(SDSUPPORT) + get_sdcard_commands(); + #endif } bool code_has_value() { @@ -7362,7 +7375,7 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) { filrunout(); #endif - if (commands_in_queue < BUFSIZE) get_command(); + if (commands_in_queue < BUFSIZE) get_available_commands(); millis_t ms = millis();