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Add polling_interval to trackball

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tonasz 2022-02-08 20:47:27 +01:00 committed by Kyle Brown
parent 119ab3d80a
commit 0f7afe5b2c
1 changed files with 16 additions and 0 deletions
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16
kmk/modules/pimoroni_trackball.py
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@ -3,6 +3,7 @@ Extension handles usage of Trackball Breakout by Pimoroni
Product page: https://shop.pimoroni.com/products/trackball-breakout Product page: https://shop.pimoroni.com/products/trackball-breakout
''' '''
from micropython import const from micropython import const
from supervisor import ticks_ms
import math import math
import struct import struct
@ -64,6 +65,8 @@ class Trackball(Module):
self.pointing_device = PointingDevice() self.pointing_device = PointingDevice()
self.mode = mode self.mode = mode
self.previous_state = False # click state self.previous_state = False # click state
self.polling_interval = 20
self.last_tick = ticks_ms()
chip_id = struct.unpack('<H', bytearray(self._i2c_rdwr([REG_CHIP_ID_L], 2)))[0] chip_id = struct.unpack('<H', bytearray(self._i2c_rdwr([REG_CHIP_ID_L], 2)))[0]
if chip_id != CHIP_ID: if chip_id != CHIP_ID:
@ -84,6 +87,11 @@ class Trackball(Module):
''' '''
Return value will be injected as an extra matrix update Return value will be injected as an extra matrix update
''' '''
now = ticks_ms()
if now - self.last_tick < self.polling_interval:
return
self.last_tick = now
up, down, left, right, switch, state = self._read_raw_state() up, down, left, right, switch, state = self._read_raw_state()
if self.mode == TrackballMode.MOUSE_MODE: if self.mode == TrackballMode.MOUSE_MODE:
@ -124,6 +132,7 @@ class Trackball(Module):
def after_hid_send(self, keyboard): def after_hid_send(self, keyboard):
if self.pointing_device.hid_pending: if self.pointing_device.hid_pending:
keyboard._hid_helper.hid_send(self.pointing_device._evt) keyboard._hid_helper.hid_send(self.pointing_device._evt)
self._clear_pending_hid()
return return
def on_powersave_enable(self, keyboard): def on_powersave_enable(self, keyboard):
@ -152,6 +161,13 @@ class Trackball(Module):
'''Set brightness of trackball white LED.''' '''Set brightness of trackball white LED.'''
self._i2c_rdwr([REG_LED_WHT, value & 0xFF]) self._i2c_rdwr([REG_LED_WHT, value & 0xFF])
def _clear_pending_hid(self):
self.pointing_device.hid_pending = False
self.pointing_device.report_x[0] = 0
self.pointing_device.report_y[0] = 0
self.pointing_device.report_w[0] = 0
self.pointing_device.button_status[0] = 0
def _read_raw_state(self): def _read_raw_state(self):
'''Read up, down, left, right and switch data from trackball.''' '''Read up, down, left, right and switch data from trackball.'''
left, right, up, down, switch = self._i2c_rdwr([REG_LEFT], 5) left, right, up, down, switch = self._i2c_rdwr([REG_LEFT], 5)