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pca9632: Support using hardware I2C 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-04-05 20:48:08 -04:00
parent 61792e3e31
commit f0700c0985
2 changed files with 18 additions and 6 deletions
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17
docs/Config_Reference.md
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@ -2616,10 +2616,19 @@ PCA9632 LED support. The PCA9632 is used on the FlashForge Dreamer.
```
[pca9632 my_pca9632]
scl_pin:
# The SCL "clock" pin. This parameter must be provided.
sda_pin:
# The SDA "data" pin. This parameter must be provided.
#i2c_address: 98
# The i2c address that the chip is using on the i2c bus. This may be
# 96, 97, 98, or 99. The default is 98.
#i2c_mcu:
#i2c_bus:
#i2c_speed:
# See the "common I2C settings" section for a description of the
# above parameters.
#scl_pin:
#sda_pin:
# Alternatively, if the pca9632 is not connected to a hardware I2C
# bus, then one may specify the "clock" (scl_pin) and "data"
# (sda_pin) pins. The default is to use hardware I2C.
#initial_RED: 0.0
#initial_GREEN: 0.0
#initial_BLUE: 0.0

7
klippy/extras/pca9632.py
View File

@ -3,7 +3,7 @@
# Copyright (C) 2022 Ricardo Alcantara <ricardo@vulcanolabs.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
from . import mcp4018
from . import bus, mcp4018
BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
@ -25,7 +25,10 @@ PCA9632_WHT = 0x06
class PCA9632:
def __init__(self, config):
self.printer = printer = config.get_printer()
self.i2c = mcp4018.SoftwareI2C(config, 98)
if config.get("scl_pin", None) is not None:
self.i2c = mcp4018.SoftwareI2C(config, 98)
else:
self.i2c = bus.MCU_I2C_from_config(config, default_addr=98)
self.prev_regs = {}
pled = printer.load_object(config, "led")
self.led_helper = pled.setup_helper(config, self.update_leds, 1, True)