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gt911: add interrupt config mode

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This commit is contained in:
Thomas Farstrike
2026-02-10 21:06:13 +01:00
parent 420588ce7d
commit 7f70b678c2
1 changed files with 8 additions and 5 deletions
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internal_filesystem/lib/mpos/indev/gt911.py
+8 -5
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@@ -40,6 +40,7 @@ BITS = 16
_ADDR2 = const(0x14)
_USE_INTERRUPTS = False # Interrupt handler based? Or just polling?
class GT911(pointer_framework.PointerDriver):
@@ -88,8 +89,10 @@ class GT911(pointer_framework.PointerDriver):
if isinstance(reset_pin, int):
reset_pin = machine.Pin(reset_pin, machine.Pin.OUT)
if isinstance(interrupt_pin, int):
if isinstance(interrupt_pin, int) and _USE_INTERRUPTS:
interrupt_pin = machine.Pin(interrupt_pin, machine.Pin.IN)
else:
interrupt_pin = machine.Pin(interrupt_pin, machine.Pin.OUT)
self._reset_pin = reset_pin
self._interrupt_pin = interrupt_pin
@@ -119,7 +122,7 @@ class GT911(pointer_framework.PointerDriver):
if self._interrupt_pin:
self._interrupt_pin(0)
time.sleep_ms(50) # NOQA
if self._interrupt_pin:
if self._interrupt_pin and _USE_INTERRUPTS:
self._interrupt_pin.init(mode=self._interrupt_pin.IN)
time.sleep_ms(50) # NOQA
@@ -150,7 +153,7 @@ class GT911(pointer_framework.PointerDriver):
print(f'Touch resolution: width={x}, height={y}')
# Set up interrupt handler if interrupt pin is available
if self._interrupt_pin:
if self._interrupt_pin and _USE_INTERRUPTS:
self._interrupt_pin.irq(trigger=machine.Pin.IRQ_FALLING, handler=self._interrupt_handler)
# Setting _MODULE_SWITCH_1 will "hang" the touch input after a second or 2 of initial swipe
#self._write_reg(_MODULE_SWITCH_1, _CMD_INT_FALLING_EDGE) # stops working
@@ -181,11 +184,11 @@ class GT911(pointer_framework.PointerDriver):
def _get_coords(self):
# If interrupt pin is available, only fetch data when interrupt flag is set
if self._interrupt_pin and not self._interrupt_flag:
if self._interrupt_pin and not self._interrupt_flag and _USE_INTERRUPTS:
return self.__last_state, self.__x, self.__y
# Clear interrupt flag before reading
if self._interrupt_pin:
if self._interrupt_pin and _USE_INTERRUPTS:
self._interrupt_flag = False
#self._write_reg(_MODULE_SWITCH_1, _CMD_INT_FALLING_EDGE)
#print("[GT911] Interrupt-triggered read")