first commit

evemu.py

@@ -0,0 +1,10 @@
+from evdev import UInput, ecodes as e
+
+ui=UInput()
+
+
+ui.write(e.EV_KEY, e.KEY_A, 1)
+ui.write(e.EV_KEY, e.KEY_A, 0)
+ui.syn()
+
+ui.close()

fw.elf

@@ -0,0 +1,106 @@
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prog_avr.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+PROG_CMD="sudo avrdude -c linuxspi -p m328p -P /dev/spidev1.0"
+
+$PROG_CMD -U flash:w:$1

spi.py

@@ -0,0 +1,28 @@
+import time
+import spidev
+
+bus=1
+device=0
+
+spi=spidev.SpiDev()
+
+spi.open(bus,device)
+
+spi.max_speed_hz = 250000
+spi.mode = 0
+
+
+oldstate=0
+
+while True:
+    data=spi.xfer2([0x55]*2, spi.max_speed_hz, 1000, 8)
+    state=data[0]<<8 + data[1]
+
+    #data.extend(spi.xfer([0x55], spi.max_speed_hz, 100))
+
+#    if state != oldstate:
+    print(' '.join([format(d,'08b') for d in data]))
+    oldstate=state
+#    time.sleep(1/200)
+
+

spiev.py

@@ -0,0 +1,55 @@
+import time
+import spidev
+from evdev import UInput, ecodes as e
+
+
+bus=1
+device=0
+
+spi=spidev.SpiDev()
+
+spi.open(bus,device)
+
+spi.max_speed_hz = 250000
+spi.mode = 0
+
+ui = UInput()
+
+oldstate=0
+
+
+
+def check(diffs, state, button, evcode):
+#    print(hex(state))
+    if diffs & button:
+        ui.write(e.EV_KEY, evcode, 0 if state & button else 1)
+#        print("button %4x is %1d, aka %d"%( button, 1 if state & button else 0, evcode) )
+
+
+
+while True:
+    data=spi.xfer2([0x55]*2, spi.max_speed_hz, 1000, 8)
+    state=(data[0]<<8) + data[1]
+
+    diffs = state ^ oldstate
+
+    if diffs:
+        print(' '.join([format(d,'08b') for d in data]))
+
+        check(diffs, state, 0x8000, e.KEY_Z) # B
+        check(diffs, state, 0x4000, e.KEY_A) # Y
+        check(diffs, state, 0x2000, e.KEY_LEFTSHIFT) # Select
+        check(diffs, state, 0x1000, e.KEY_ENTER) # Start
+        check(diffs, state, 0x0800, e.KEY_UP) # Up
+        check(diffs, state, 0x0400, e.KEY_DOWN) # Down
+        check(diffs, state, 0x0200, e.KEY_LEFT) # Left
+        check(diffs, state, 0x0100, e.KEY_RIGHT) # Right
+        check(diffs, state, 0x0080, e.KEY_X) # A
+        check(diffs, state, 0x0040, e.KEY_S) # X
+        check(diffs, state, 0x0020, e.KEY_Q) # L
+        check(diffs, state, 0x0010, e.KEY_W) # R
+        ui.syn()
+
+    oldstate=state
+
+ui.close()