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Diffstat (limited to 'Marlin/src/feature/e_parser.h')
| -rw-r--r-- | Marlin/src/feature/e_parser.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/Marlin/src/feature/e_parser.h b/Marlin/src/feature/e_parser.h new file mode 100644 index 0000000..659e516 --- /dev/null +++ b/Marlin/src/feature/e_parser.h @@ -0,0 +1,185 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>. + * + */ +#pragma once + +/** + * e_parser.h - Intercept special commands directly in the serial stream + */ + +#include "../inc/MarlinConfigPre.h" + +#if ENABLED(HOST_PROMPT_SUPPORT) + #include "host_actions.h" +#endif + +// External references +extern bool wait_for_user, wait_for_heatup; + +class EmergencyParser { + +public: + + // Currently looking for: M108, M112, M410, M876 + enum State : char { + EP_RESET, + EP_N, + EP_M, + EP_M1, + EP_M10, + EP_M108, + EP_M11, + EP_M112, + EP_M4, + EP_M41, + EP_M410, + #if ENABLED(HOST_PROMPT_SUPPORT) + EP_M8, + EP_M87, + EP_M876, + EP_M876S, + EP_M876SN, + #endif + EP_IGNORE // to '\n' + }; + + static bool killed_by_M112; + static bool quickstop_by_M410; + + #if ENABLED(HOST_PROMPT_SUPPORT) + static uint8_t M876_reason; + #endif + + EmergencyParser() { enable(); } + + FORCE_INLINE static void enable() { enabled = true; } + + FORCE_INLINE static void disable() { enabled = false; } + + FORCE_INLINE static void update(State &state, const uint8_t c) { + switch (state) { + case EP_RESET: + switch (c) { + case ' ': case '\n': case '\r': break; + case 'N': state = EP_N; break; + case 'M': state = EP_M; break; + default: state = EP_IGNORE; + } + break; + + case EP_N: + switch (c) { + case '0' ... '9': + case '-': case ' ': break; + case 'M': state = EP_M; break; + default: state = EP_IGNORE; + } + break; + + case EP_M: + switch (c) { + case ' ': break; + case '1': state = EP_M1; break; + case '4': state = EP_M4; break; + #if ENABLED(HOST_PROMPT_SUPPORT) + case '8': state = EP_M8; break; + #endif + default: state = EP_IGNORE; + } + break; + + case EP_M1: + switch (c) { + case '0': state = EP_M10; break; + case '1': state = EP_M11; break; + default: state = EP_IGNORE; + } + break; + + case EP_M10: + state = (c == '8') ? EP_M108 : EP_IGNORE; + break; + + case EP_M11: + state = (c == '2') ? EP_M112 : EP_IGNORE; + break; + + case EP_M4: + state = (c == '1') ? EP_M41 : EP_IGNORE; + break; + + case EP_M41: + state = (c == '0') ? EP_M410 : EP_IGNORE; + break; + + #if ENABLED(HOST_PROMPT_SUPPORT) + case EP_M8: + state = (c == '7') ? EP_M87 : EP_IGNORE; + break; + + case EP_M87: + state = (c == '6') ? EP_M876 : EP_IGNORE; + break; + + case EP_M876: + switch (c) { + case ' ': break; + case 'S': state = EP_M876S; break; + default: state = EP_IGNORE; break; + } + break; + + case EP_M876S: + switch (c) { + case ' ': break; + case '0' ... '9': + state = EP_M876SN; + M876_reason = (uint8_t)(c - '0'); + break; + } + break; + #endif + + case EP_IGNORE: + if (ISEOL(c)) state = EP_RESET; + break; + + default: + if (ISEOL(c)) { + if (enabled) switch (state) { + case EP_M108: wait_for_user = wait_for_heatup = false; break; + case EP_M112: killed_by_M112 = true; break; + case EP_M410: quickstop_by_M410 = true; break; + #if ENABLED(HOST_PROMPT_SUPPORT) + case EP_M876SN: host_response_handler(M876_reason); break; + #endif + default: break; + } + state = EP_RESET; + } + } + } + +private: + static bool enabled; +}; + +extern EmergencyParser emergency_parser; |