42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
# Copyright (c) 2017 Linaro Limited
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# Copyright (c) 2019 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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# The following blog post is an excellent resource about pulse timing:
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#
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# https://wp.josh.com/2014/05/13/ws2812-neopixels-are-not-so-finicky-once-you-get-to-know-them/
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menuconfig WS2812_STRIP
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bool "WS2812 (and compatible) LED strip driver"
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select LED_STRIP_RGB_SCRATCH
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help
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Enable LED strip driver for daisy chains of WS2812-ish (or WS2812B,
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WS2813, SK6812, Everlight B1414, or compatible) devices.
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choice WS2812_STRIP_DRIVER
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prompt "Driver backend"
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default WS2812_STRIP_SPI
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depends on WS2812_STRIP
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config WS2812_STRIP_SPI
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bool "SPI driver"
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depends on SPI
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help
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The SPI driver is portable, but requires significantly more
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memory (1 byte of overhead per bit of pixel data).
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config WS2812_STRIP_GPIO
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bool "GPIO driver"
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# Only an Cortex-M0 inline assembly implementation for the nRF51
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# is supported currently.
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depends on SOC_SERIES_NRF51X
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help
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The GPIO driver does bit-banging with inline assembly,
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and is not available on all SoCs.
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Note that this driver is not compatible with the Everlight B1414
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controller.
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endchoice
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