95 lines
4.2 KiB
C++
95 lines
4.2 KiB
C++
#pragma once
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#include <map>
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#include <string>
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#include <vector>
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namespace fgc {
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// Structured decode of a firmware DUMP block (the text between "DUMP BEGIN" and
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// "DUMP END"). Mirrors firmware/tools/decode_dump.py, which is authoritative for
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// the on-wire field names and the TMC status-register bit tables.
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struct DumpAxis {
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char axis = '?'; // 'Y' (yaw) / 'P' (pitch)
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std::string state_name = "?"; // BOOT/RESET/HOMING/READY/ERROR
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bool enabled = false;
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bool has_encoder = false;
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long lim_neg = 0;
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long lim_pos = 0;
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long soft_margin = 0; // counts kept clear of each hard limit
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long center_count = 0; // count the firmware anchored the homed midpoint to
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long hold_target = 0;
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long speed = 0;
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// Motor current, as the firmware believes it applied it. GLOBALSCALER and
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// IHOLD_IRUN are write-only on the TMC5160, so this echo is the only way the
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// host can confirm a CURRENT command landed.
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//
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// -1 means the field was absent, i.e. the firmware predates the command -
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// which is a different thing from "applied a current of zero" and has to stay
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// distinguishable, because one is a version skew and the other is a fault.
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long global_scaler = -1;
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long run_irun = -1;
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long homing_irun = -1;
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// The rest of what the host declares and the firmware is told. Same -1
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// convention and the same reason: absent means a firmware that predates the
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// config handshake, which is a version skew, not a value of zero.
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long steps_per_rev = -1;
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long enc_deviation = -1;
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long homing_speed = -1;
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long center_speed = -1;
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long sw_mode = -1;
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// Bitmask over the firmware's CfgKey: which required keys have arrived.
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// -1 when absent.
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long cfg_received = -1;
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// Encoder-tracking health accumulated by the firmware hold corrector.
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long hold_corrections = 0; // # of hold resyncs since firmware boot/RESET
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long hold_peak_dev = 0; // largest deviation seen while holding (counts)
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long hold_cumulative_dev = 0; // sum of corrected deviations (counts)
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int hsub = 0;
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// Raw register hex strings as received, keyed by name (GCONF, DRV_STATUS...).
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std::map<std::string, std::string> regs;
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// Decoded status registers + their set-bit names.
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unsigned drv_status = 0;
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unsigned gstat = 0;
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unsigned ramp_stat = 0;
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int cs_actual = 0; // (DRV_STATUS >> 16) & 0x1F
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int sg_result = 0; // DRV_STATUS & 0x3FF
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std::vector<std::string> drv_flags;
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std::vector<std::string> gstat_flags;
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std::vector<std::string> ramp_flags;
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};
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struct DumpData {
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bool valid = false;
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std::string build;
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long uptime_ms = 0;
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// Why the MCU last restarted, as the firmware reported it.
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//
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// `mcusr` is the RAW value and means DIFFERENT THINGS per board: on AVR it is
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// the MCUSR bitmask (bit 0 power-on, bit 1 external, ...); on RP2040 it is
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// rp2040.getResetReason(), a plain enum where 3 is one value, not two bits.
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// Decoding one as the other is silently wrong - it reported an RP2040 soft
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// reset as "PORF (power-on), EXTRF (external)" on tower 121.
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//
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// So the firmware now NAMES it in the dump (`reset=<text>`), and that text is
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// authoritative because only the board knows its own encoding. reset_flags is
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// the legacy AVR bit decode, kept for firmware that predates the field.
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unsigned mcusr = 0;
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std::string reset_text; // empty => firmware did not name it
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long free_ram = 0;
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std::vector<std::string> reset_flags;
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std::vector<DumpAxis> axes;
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};
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// Parse a raw DUMP block. Returns {valid=false} for empty/malformed input (no
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// "DUMP BEGIN .. DUMP END" pair).
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DumpData parseDump(const std::string& block);
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// Human-readable lines for a decoded dump (console-reusable pretty print).
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std::vector<std::string> formatDump(const DumpData& d);
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} // namespace fgc
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