1 files changed, 84 insertions, 0 deletions

diff --git a/keyboards/butterstick/sten.h b/keyboards/butterstick/sten.h
new file mode 100644
index 000000000..0d5c58df2
--- /dev/null
+++ b/keyboards/butterstick/sten.h
@@ -0,0 +1,84 @@
+// 2019, g Heavy Industries
+// Blessed mother of Christ, please keep this readable
+// and protect us from segfaults. For thine is the clock,
+// the slave and the master. Until we return from main.
+//
+// Amen.
+
+#include QMK_KEYBOARD_H
+#include "mousekey.h"
+#include "keymap.h"
+#include "keymap_steno.h"
+#include "wait.h"
+
+extern size_t keymapsCount;                     // Total keymaps
+extern uint32_t cChord;                         // Current Chord
+extern uint32_t stenoLayers[];          // Chords that simulate QMK layers
+extern size_t stenoLayerCount;          // Number of simulated layers
+
+// Function defs
+void                    processChord(bool useFakeSteno);
+uint32_t        processQwerty(bool lookup);
+uint32_t        processFakeSteno(bool lookup);
+void                    saveState(uint32_t cChord);
+void                    restoreState(void);
+
+// Macros for use in keymap.c
+void                    SEND(uint8_t kc);
+void                    REPEAT(void);
+void                    SET_STICKY(uint32_t);
+void                    SWITCH_LAYER(int);
+void                    CLICK_MOUSE(uint8_t);
+
+// Keymap helper
+#define P(chord, act) if (cChord == (chord)) { if (!lookup) {act;} return chord;}
+#define PC(chord, act) if (cChord == (chord)) { if (!lookup) {act;} return chord;} \
+        for(int i = 0; i < stenoLayerCount; i++) { \
+                uint32_t refChord = stenoLayers[i] | chord; \
+                if (cChord == (refChord)) { if (!lookup) {act;} return refChord;}; \
+}
+
+// Shift to internal representation
+// i.e) S(teno)R(ight)F
+#define STN(n) (1L<<n)
+enum ORDER { 
+                SFN = 0, SPWR, SST1, SST2, SST3, SST4, SNUML, SNUMR,
+                SLSU, SLSD, SLT, SLK, SLP, SLW, SLH, SLR, SLA, SLO, 
+                SRE, SRU, SRF, SRR, SRP, SRB, SRL, SRG, SRT, SRS, SRD, SRZ, SRES1, SRES2
+};
+
+// Break it all out
+#define FN      STN(SFN)
+#define PWR     STN(SPWR)
+#define ST1 STN(SST1)
+#define ST2 STN(SST2)
+#define ST3 STN(SST3)
+#define ST4 STN(SST4)
+#define LNO STN(SNUML)  // STN1-6
+#define RNO STN(SNUMR)  // STN7-C
+#define RES1 STN(SRES1) // Use reserved for sticky state
+#define RES2 STN(SRES2)
+
+#define LSU STN(SLSU)
+#define LSD STN(SLSD)
+#define LFT STN(SLT)    // (L)e(F)t (T), preprocessor conflict
+#define LK  STN(SLK)
+#define LP  STN(SLP)
+#define LW  STN(SLW)
+#define LH  STN(SLH)
+#define LR  STN(SLR)
+#define LA  STN(SLA)
+#define LO  STN(SLO)
+
+#define RE  STN(SRE)
+#define RU  STN(SRU)
+#define RF  STN(SRF)
+#define RR  STN(SRR)
+#define RP  STN(SRP)
+#define RB  STN(SRB)
+#define RL  STN(SRL)
+#define RG  STN(SRG)
+#define RT  STN(SRT)
+#define RS  STN(SRS)
+#define RD  STN(SRD)
+#define RZ  STN(SRZ)