rp2/rp2_pio: Fix use of PIO2 in prog data structure.

The RP2350 PIO2 State Machines (8, 9, 10, 11) did not work.  The data
structure used to pass the PIO arguments was missing an entry for PIO2,
thus causing the PIO2 instances to write wrong data to wrong locations.

Fixes issue micropython#17509.

Signed-off-by: Matt Westveld <[email protected]>

Author: root

ports/rp2/modules/rp2.py

@@ -7,12 +7,13 @@
 _PROG_DATA = const(0)
 _PROG_OFFSET_PIO0 = const(1)
 _PROG_OFFSET_PIO1 = const(2)
-_PROG_EXECCTRL = const(3)
-_PROG_SHIFTCTRL = const(4)
-_PROG_OUT_PINS = const(5)
-_PROG_SET_PINS = const(6)
-_PROG_SIDESET_PINS = const(7)
-_PROG_MAX_FIELDS = const(8)
+_PROG_OFFSET_PIO2 = const(3)
+_PROG_EXECCTRL = const(4)
+_PROG_SHIFTCTRL = const(5)
+_PROG_OUT_PINS = const(6)
+_PROG_SET_PINS = const(7)
+_PROG_SIDESET_PINS = const(8)
+_PROG_MAX_FIELDS = const(9)
 
 
 class PIOASMError(Exception):
@@ -50,7 +51,7 @@ def __init__(
             | autopull << 17
             | autopush << 16
         )
-        self.prog = [array("H"), -1, -1, execctrl, shiftctrl, out_init, set_init, sideset_init]
+        self.prog = [array("H"), -1, -1, -1, execctrl, shiftctrl, out_init, set_init, sideset_init]
 
         self.wrap_used = False
 

ports/rp2/rp2_pio.c

@@ -212,6 +212,7 @@ enum {
     PROG_DATA,
     PROG_OFFSET_PIO0,
     PROG_OFFSET_PIO1,
+    PROG_OFFSET_PIO2,
     PROG_EXECCTRL,
     PROG_SHIFTCTRL,
     PROG_OUT_PINS,