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neopixel: Allow host software to configure neopixel timing

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2020-04-15 13:28:54 -04:00
parent a7f7cc5075
commit 0ae20421d1
2 changed files with 23 additions and 11 deletions
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11
klippy/extras/neopixel.py
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@ -6,6 +6,9 @@
BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
BIT_MAX_TIME=.000004
RESET_MIN_TIME=.000050
class PrinterNeoPixel:
def __init__(self, config):
self.printer = config.get_printer()
@ -15,8 +18,7 @@ class PrinterNeoPixel:
pin_params = ppins.lookup_pin(config.get('pin'))
self.mcu = pin_params['chip']
self.oid = self.mcu.create_oid()
self.mcu.add_config_cmd("config_neopixel oid=%d pin=%s"
% (self.oid, pin_params['pin']))
self.pin = pin_params['pin']
self.mcu.register_config_callback(self.build_config)
self.color_order_GRB = config.getboolean("color_order_GRB", True)
self.chain_count = config.getint('chain_count', 1, minval=1, maxval=18)
@ -33,6 +35,11 @@ class PrinterNeoPixel:
self.cmd_SET_LED,
desc=self.cmd_SET_LED_help)
def build_config(self):
bmt = self.mcu.seconds_to_clock(BIT_MAX_TIME)
rmt = self.mcu.seconds_to_clock(RESET_MIN_TIME)
self.mcu.add_config_cmd("config_neopixel oid=%d pin=%s"
" bit_max_ticks=%d reset_min_ticks=%d"
% (self.oid, self.pin, bmt, rmt))
cmd_queue = self.mcu.alloc_command_queue()
self.neopixel_send_cmd = self.mcu.lookup_command(
"neopixel_send oid=%c data=%*s", cq=cmd_queue)