mirror of https://github.com/esphome/esphome.git
Rp2040 pio ledstrip (#4818)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Daniel Mahaney
GitHub
parent
784cc3bc29
commit
a15ac06771
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@ -220,6 +220,7 @@ esphome/components/restart/* @esphome/core
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esphome/components/rf_bridge/* @jesserockz
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esphome/components/rgbct/* @jesserockz
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esphome/components/rp2040/* @jesserockz
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esphome/components/rp2040_pio_led_strip/* @Papa-DMan
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esphome/components/rp2040_pwm/* @jesserockz
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esphome/components/rtttl/* @glmnet
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esphome/components/safe_mode/* @jsuanet @paulmonigatti
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@ -1,4 +1,7 @@
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import logging
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import os
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from string import ascii_letters, digits
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import esphome.codegen as cg
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import esphome.config_validation as cv
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@ -12,9 +15,11 @@ from esphome.const import (
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KEY_TARGET_FRAMEWORK,
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KEY_TARGET_PLATFORM,
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)
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from esphome.core import CORE, coroutine_with_priority
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from esphome.core import CORE, coroutine_with_priority, EsphomeError
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from esphome.helpers import mkdir_p, write_file
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import esphome.platformio_api as api
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from .const import KEY_BOARD, KEY_RP2040, rp2040_ns
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from .const import KEY_BOARD, KEY_PIO_FILES, KEY_RP2040, rp2040_ns
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# force import gpio to register pin schema
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from .gpio import rp2040_pin_to_code # noqa
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@ -33,6 +38,8 @@ def set_core_data(config):
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)
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CORE.data[KEY_RP2040][KEY_BOARD] = config[CONF_BOARD]
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CORE.data[KEY_RP2040][KEY_PIO_FILES] = {}
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return config
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@ -148,7 +155,10 @@ async def to_code(config):
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cg.add_platformio_option("platform", conf[CONF_PLATFORM_VERSION])
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cg.add_platformio_option(
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"platform_packages",
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[f"earlephilhower/framework-arduinopico@{conf[CONF_SOURCE]}"],
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[
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f"earlephilhower/framework-arduinopico@{conf[CONF_SOURCE]}",
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"earlephilhower/tool-pioasm-rp2040-earlephilhower",
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],
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)
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cg.add_platformio_option("board_build.core", "earlephilhower")
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@ -159,3 +169,53 @@ async def to_code(config):
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"USE_ARDUINO_VERSION_CODE",
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cg.RawExpression(f"VERSION_CODE({ver.major}, {ver.minor}, {ver.patch})"),
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)
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def add_pio_file(component: str, key: str, data: str):
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try:
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cv.validate_id_name(key)
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except cv.Invalid as e:
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raise EsphomeError(
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f"[{component}] Invalid PIO key: {key}. Allowed characters: [{ascii_letters}{digits}_]\nPlease report an issue https://github.com/esphome/issues"
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) from e
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CORE.data[KEY_RP2040][KEY_PIO_FILES][key] = data
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def generate_pio_files() -> bool:
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import shutil
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shutil.rmtree(CORE.relative_build_path("src/pio"), ignore_errors=True)
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includes: list[str] = []
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files = CORE.data[KEY_RP2040][KEY_PIO_FILES]
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if not files:
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return False
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for key, data in files.items():
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pio_path = CORE.relative_build_path(f"src/pio/{key}.pio")
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mkdir_p(os.path.dirname(pio_path))
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write_file(pio_path, data)
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_LOGGER.info("Assembling PIO assembly code")
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retval = api.run_platformio_cli(
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"pkg",
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"exec",
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"--package",
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"earlephilhower/tool-pioasm-rp2040-earlephilhower",
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"--",
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"pioasm",
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pio_path,
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pio_path + ".h",
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)
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includes.append(f"pio/{key}.pio.h")
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if retval != 0:
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raise EsphomeError("PIO assembly failed")
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write_file(
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CORE.relative_build_path("src/pio_includes.h"),
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"#pragma once\n" + "\n".join([f'#include "{include}"' for include in includes]),
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)
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return True
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# Called by writer.py
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def copy_files() -> bool:
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return generate_pio_files()
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@ -2,5 +2,6 @@ import esphome.codegen as cg
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KEY_BOARD = "board"
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KEY_RP2040 = "rp2040"
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KEY_PIO_FILES = "pio_files"
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rp2040_ns = cg.esphome_ns.namespace("rp2040")
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@ -0,0 +1 @@
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CODEOWNERS = ["@Papa-DMan"]
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@ -0,0 +1,139 @@
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#include "led_strip.h"
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#ifdef USE_RP2040
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#include "esphome/core/helpers.h"
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#include "esphome/core/log.h"
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#include <hardware/clocks.h>
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#include <hardware/pio.h>
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#include <pico/stdlib.h>
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namespace esphome {
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namespace rp2040_pio_led_strip {
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static const char *TAG = "rp2040_pio_led_strip";
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void RP2040PIOLEDStripLightOutput::setup() {
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ESP_LOGCONFIG(TAG, "Setting up RP2040 LED Strip...");
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size_t buffer_size = this->get_buffer_size_();
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ExternalRAMAllocator<uint8_t> allocator(ExternalRAMAllocator<uint8_t>::ALLOW_FAILURE);
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this->buf_ = allocator.allocate(buffer_size);
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if (this->buf_ == nullptr) {
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ESP_LOGE(TAG, "Failed to allocate buffer of size %u", buffer_size);
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this->mark_failed();
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return;
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}
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this->effect_data_ = allocator.allocate(this->num_leds_);
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if (this->effect_data_ == nullptr) {
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ESP_LOGE(TAG, "Failed to allocate effect data of size %u", this->num_leds_);
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this->mark_failed();
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return;
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}
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// Select PIO instance to use (0 or 1)
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this->pio_ = pio0;
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if (this->pio_ == nullptr) {
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ESP_LOGE(TAG, "Failed to claim PIO instance");
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this->mark_failed();
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return;
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}
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// Load the assembled program into the PIO and get its location in the PIO's instruction memory
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uint offset = pio_add_program(this->pio_, this->program_);
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// Configure the state machine's PIO, and start it
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this->sm_ = pio_claim_unused_sm(this->pio_, true);
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if (this->sm_ < 0) {
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ESP_LOGE(TAG, "Failed to claim PIO state machine");
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this->mark_failed();
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return;
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}
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this->init_(this->pio_, this->sm_, offset, this->pin_, this->max_refresh_rate_);
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}
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void RP2040PIOLEDStripLightOutput::write_state(light::LightState *state) {
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ESP_LOGVV(TAG, "Writing state...");
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if (this->is_failed()) {
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ESP_LOGW(TAG, "Light is in failed state, not writing state.");
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return;
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}
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if (this->buf_ == nullptr) {
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ESP_LOGW(TAG, "Buffer is null, not writing state.");
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return;
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}
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// assemble bits in buffer to 32 bit words with ex for GBR: 0bGGGGGGGGRRRRRRRRBBBBBBBB00000000
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for (int i = 0; i < this->num_leds_; i++) {
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uint8_t c1 = this->buf_[(i * 3) + 0];
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uint8_t c2 = this->buf_[(i * 3) + 1];
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uint8_t c3 = this->buf_[(i * 3) + 2];
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uint8_t w = this->is_rgbw_ ? this->buf_[(i * 4) + 3] : 0;
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uint32_t color = encode_uint32(c1, c2, c3, w);
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pio_sm_put_blocking(this->pio_, this->sm_, color);
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}
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}
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light::ESPColorView RP2040PIOLEDStripLightOutput::get_view_internal(int32_t index) const {
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int32_t r = 0, g = 0, b = 0, w = 0;
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switch (this->rgb_order_) {
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case ORDER_RGB:
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r = 0;
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g = 1;
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b = 2;
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break;
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case ORDER_RBG:
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r = 0;
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g = 2;
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b = 1;
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break;
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case ORDER_GRB:
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r = 1;
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g = 0;
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b = 2;
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break;
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case ORDER_GBR:
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r = 2;
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g = 0;
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b = 1;
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break;
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case ORDER_BGR:
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r = 2;
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g = 1;
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b = 0;
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break;
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case ORDER_BRG:
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r = 1;
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g = 2;
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b = 0;
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break;
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}
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uint8_t multiplier = this->is_rgbw_ ? 4 : 3;
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return {this->buf_ + (index * multiplier) + r,
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this->buf_ + (index * multiplier) + g,
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this->buf_ + (index * multiplier) + b,
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this->is_rgbw_ ? this->buf_ + (index * multiplier) + 3 : nullptr,
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&this->effect_data_[index],
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&this->correction_};
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}
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void RP2040PIOLEDStripLightOutput::dump_config() {
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ESP_LOGCONFIG(TAG, "RP2040 PIO LED Strip Light Output:");
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ESP_LOGCONFIG(TAG, " Pin: GPIO%d", this->pin_);
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ESP_LOGCONFIG(TAG, " Number of LEDs: %d", this->num_leds_);
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ESP_LOGCONFIG(TAG, " RGBW: %s", YESNO(this->is_rgbw_));
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ESP_LOGCONFIG(TAG, " RGB Order: %s", rgb_order_to_string(this->rgb_order_));
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ESP_LOGCONFIG(TAG, " Max Refresh Rate: %f Hz", this->max_refresh_rate_);
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}
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float RP2040PIOLEDStripLightOutput::get_setup_priority() const { return setup_priority::HARDWARE; }
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} // namespace rp2040_pio_led_strip
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} // namespace esphome
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#endif
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@ -0,0 +1,108 @@
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#pragma once
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#ifdef USE_RP2040
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#include "esphome/core/color.h"
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#include "esphome/core/component.h"
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#include "esphome/core/helpers.h"
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#include "esphome/components/light/addressable_light.h"
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#include "esphome/components/light/light_output.h"
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#include <hardware/pio.h>
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#include <hardware/structs/pio.h>
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#include <pico/stdio.h>
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namespace esphome {
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namespace rp2040_pio_led_strip {
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enum RGBOrder : uint8_t {
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ORDER_RGB,
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ORDER_RBG,
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ORDER_GRB,
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ORDER_GBR,
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ORDER_BGR,
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ORDER_BRG,
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};
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inline const char *rgb_order_to_string(RGBOrder order) {
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switch (order) {
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case ORDER_RGB:
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return "RGB";
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case ORDER_RBG:
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return "RBG";
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case ORDER_GRB:
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return "GRB";
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case ORDER_GBR:
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return "GBR";
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case ORDER_BGR:
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return "BGR";
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case ORDER_BRG:
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return "BRG";
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default:
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return "UNKNOWN";
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}
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}
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using init_fn = void (*)(PIO pio, uint sm, uint offset, uint pin, float freq);
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class RP2040PIOLEDStripLightOutput : public light::AddressableLight {
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public:
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void setup() override;
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void write_state(light::LightState *state) override;
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float get_setup_priority() const override;
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int32_t size() const override { return this->num_leds_; }
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light::LightTraits get_traits() override {
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auto traits = light::LightTraits();
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this->is_rgbw_ ? traits.set_supported_color_modes({light::ColorMode::RGB, light::ColorMode::RGB_WHITE})
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: traits.set_supported_color_modes({light::ColorMode::RGB});
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return traits;
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}
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void set_pin(uint8_t pin) { this->pin_ = pin; }
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void set_num_leds(uint32_t num_leds) { this->num_leds_ = num_leds; }
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void set_is_rgbw(bool is_rgbw) { this->is_rgbw_ = is_rgbw; }
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void set_max_refresh_rate(float interval_us) { this->max_refresh_rate_ = interval_us; }
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void set_pio(int pio_num) { pio_num ? this->pio_ = pio1 : this->pio_ = pio0; }
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void set_program(const pio_program_t *program) { this->program_ = program; }
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void set_init_function(init_fn init) { this->init_ = init; }
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void set_rgb_order(RGBOrder rgb_order) { this->rgb_order_ = rgb_order; }
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void clear_effect_data() override {
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for (int i = 0; i < this->size(); i++) {
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this->effect_data_[i] = 0;
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}
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}
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void dump_config() override;
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protected:
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light::ESPColorView get_view_internal(int32_t index) const override;
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size_t get_buffer_size_() const { return this->num_leds_ * (3 + this->is_rgbw_); }
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uint8_t *buf_{nullptr};
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uint8_t *effect_data_{nullptr};
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uint8_t pin_;
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uint32_t num_leds_;
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bool is_rgbw_;
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pio_hw_t *pio_;
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uint sm_;
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RGBOrder rgb_order_{ORDER_RGB};
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uint32_t last_refresh_{0};
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float max_refresh_rate_;
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const pio_program_t *program_;
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init_fn init_;
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};
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} // namespace rp2040_pio_led_strip
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} // namespace esphome
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#endif // USE_RP2040
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@ -0,0 +1,267 @@
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from dataclasses import dataclass
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from esphome import pins
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from esphome.components import light, rp2040
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from esphome.const import (
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CONF_CHIPSET,
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CONF_ID,
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CONF_NUM_LEDS,
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CONF_OUTPUT_ID,
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CONF_PIN,
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CONF_RGB_ORDER,
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)
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.util import _LOGGER
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def get_nops(timing):
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"""
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Calculate the number of NOP instructions required to wait for a given amount of time.
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"""
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time_remaining = timing
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nops = []
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if time_remaining < 32:
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nops.append(time_remaining - 1)
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return nops
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nops.append(31)
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time_remaining -= 32
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while time_remaining > 0:
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if time_remaining >= 32:
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nops.append("nop [31]")
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time_remaining -= 32
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else:
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nops.append("nop [" + str(time_remaining) + " - 1 ]")
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time_remaining = 0
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return nops
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def generate_assembly_code(id, rgbw, t0h, t0l, t1h, t1l):
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"""
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Generate assembly code with the given timing values.
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"""
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nops_t0h = get_nops(t0h)
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nops_t0l = get_nops(t0l)
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nops_t1h = get_nops(t1h)
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nops_t1l = get_nops(t1l)
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t0h = nops_t0h.pop(0)
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t0l = nops_t0l.pop(0)
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t1h = nops_t1h.pop(0)
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t1l = nops_t1l.pop(0)
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nops_t0h = "\n".join(" " * 4 + nop for nop in nops_t0h)
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nops_t0l = "\n".join(" " * 4 + nop for nop in nops_t0l)
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nops_t1h = "\n".join(" " * 4 + nop for nop in nops_t1h)
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nops_t1l = "\n".join(" " * 4 + nop for nop in nops_t1l)
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const_csdk_code = f"""
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% c-sdk {{
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#include "hardware/clocks.h"
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static inline void rp2040_pio_led_strip_driver_{id}_init(PIO pio, uint sm, uint offset, uint pin, float freq) {{
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pio_gpio_init(pio, pin);
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pio_sm_set_consecutive_pindirs(pio, sm, pin, 1, true);
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pio_sm_config c = rp2040_pio_led_strip_{id}_program_get_default_config(offset);
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sm_config_set_set_pins(&c, pin, 1);
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sm_config_set_out_shift(&c, false, true, {32 if rgbw else 24});
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sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
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int cycles_per_bit = 69;
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float div = 2.409;
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sm_config_set_clkdiv(&c, div);
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pio_sm_init(pio, sm, offset, &c);
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pio_sm_set_enabled(pio, sm, true);
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}}
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%}}"""
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|
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assembly_template = f""".program rp2040_pio_led_strip_{id}
|
||||
|
||||
.wrap_target
|
||||
awaiting_data:
|
||||
; Wait for data in FIFO queue
|
||||
pull block ; this will block until there is data in the FIFO queue and then it will pull it into the shift register
|
||||
set y, {31 if rgbw else 23} ; set y to the number of bits to write counting 0, (23 if RGB, 31 if RGBW)
|
||||
|
||||
mainloop:
|
||||
; go through each bit in the shift register and jump to the appropriate label
|
||||
; depending on the value of the bit
|
||||
|
||||
out x, 1
|
||||
jmp !x, writezero
|
||||
jmp writeone
|
||||
|
||||
writezero:
|
||||
; Write T0H and T0L bits to the output pin
|
||||
set pins, 1 [{t0h}]
|
||||
{nops_t0h}
|
||||
set pins, 0 [{t0l}]
|
||||
{nops_t0l}
|
||||
jmp y--, mainloop
|
||||
jmp awaiting_data
|
||||
|
||||
writeone:
|
||||
; Write T1H and T1L bits to the output pin
|
||||
set pins, 1 [{t1h}]
|
||||
{nops_t1h}
|
||||
set pins, 0 [{t1l}]
|
||||
{nops_t1l}
|
||||
jmp y--, mainloop
|
||||
jmp awaiting_data
|
||||
|
||||
.wrap"""
|
||||
|
||||
return assembly_template + const_csdk_code
|
||||
|
||||
|
||||
def time_to_cycles(time_us):
|
||||
cycles_per_us = 57.5
|
||||
cycles = round(float(time_us) * cycles_per_us)
|
||||
return cycles
|
||||
|
||||
|
||||
CONF_PIO = "pio"
|
||||
|
||||
CODEOWNERS = ["@Papa-DMan"]
|
||||
DEPENDENCIES = ["rp2040"]
|
||||
|
||||
rp2040_pio_led_strip_ns = cg.esphome_ns.namespace("rp2040_pio_led_strip")
|
||||
RP2040PIOLEDStripLightOutput = rp2040_pio_led_strip_ns.class_(
|
||||
"RP2040PIOLEDStripLightOutput", light.AddressableLight
|
||||
)
|
||||
|
||||
RGBOrder = rp2040_pio_led_strip_ns.enum("RGBOrder")
|
||||
|
||||
Chipsets = rp2040_pio_led_strip_ns.enum("Chipset")
|
||||
|
||||
|
||||
@dataclass
|
||||
class LEDStripTimings:
|
||||
T0H: int
|
||||
T0L: int
|
||||
T1H: int
|
||||
T1L: int
|
||||
|
||||
|
||||
RGB_ORDERS = {
|
||||
"RGB": RGBOrder.ORDER_RGB,
|
||||
"RBG": RGBOrder.ORDER_RBG,
|
||||
"GRB": RGBOrder.ORDER_GRB,
|
||||
"GBR": RGBOrder.ORDER_GBR,
|
||||
"BGR": RGBOrder.ORDER_BGR,
|
||||
"BRG": RGBOrder.ORDER_BRG,
|
||||
}
|
||||
|
||||
CHIPSETS = {
|
||||
"WS2812": LEDStripTimings(20, 43, 41, 31),
|
||||
"WS2812B": LEDStripTimings(23, 46, 46, 23),
|
||||
"SK6812": LEDStripTimings(17, 52, 31, 31),
|
||||
"SM16703": LEDStripTimings(17, 52, 52, 17),
|
||||
}
|
||||
|
||||
CONF_IS_RGBW = "is_rgbw"
|
||||
CONF_BIT0_HIGH = "bit0_high"
|
||||
CONF_BIT0_LOW = "bit0_low"
|
||||
CONF_BIT1_HIGH = "bit1_high"
|
||||
CONF_BIT1_LOW = "bit1_low"
|
||||
|
||||
|
||||
def _validate_timing(value):
|
||||
# if doesn't end with us, raise error
|
||||
if not value.endswith("us"):
|
||||
raise cv.Invalid("Timing must be in microseconds (us)")
|
||||
value = float(value[:-2])
|
||||
nops = get_nops(value)
|
||||
nops.pop(0)
|
||||
if len(nops) > 3:
|
||||
raise cv.Invalid("Timing is too long, please try again.")
|
||||
return value
|
||||
|
||||
|
||||
CONFIG_SCHEMA = cv.All(
|
||||
light.ADDRESSABLE_LIGHT_SCHEMA.extend(
|
||||
{
|
||||
cv.GenerateID(CONF_OUTPUT_ID): cv.declare_id(RP2040PIOLEDStripLightOutput),
|
||||
cv.Required(CONF_PIN): pins.internal_gpio_output_pin_number,
|
||||
cv.Required(CONF_NUM_LEDS): cv.positive_not_null_int,
|
||||
cv.Required(CONF_RGB_ORDER): cv.enum(RGB_ORDERS, upper=True),
|
||||
cv.Required(CONF_PIO): cv.one_of(0, 1, int=True),
|
||||
cv.Optional(CONF_CHIPSET): cv.one_of(*CHIPSETS, upper=True),
|
||||
cv.Optional(CONF_IS_RGBW, default=False): cv.boolean,
|
||||
cv.Inclusive(
|
||||
CONF_BIT0_HIGH,
|
||||
"custom",
|
||||
): _validate_timing,
|
||||
cv.Inclusive(
|
||||
CONF_BIT0_LOW,
|
||||
"custom",
|
||||
): _validate_timing,
|
||||
cv.Inclusive(
|
||||
CONF_BIT1_HIGH,
|
||||
"custom",
|
||||
): _validate_timing,
|
||||
cv.Inclusive(
|
||||
CONF_BIT1_LOW,
|
||||
"custom",
|
||||
): _validate_timing,
|
||||
}
|
||||
),
|
||||
cv.has_exactly_one_key(CONF_CHIPSET, CONF_BIT0_HIGH),
|
||||
)
|
||||
|
||||
|
||||
async def to_code(config):
|
||||
var = cg.new_Pvariable(config[CONF_OUTPUT_ID])
|
||||
id = config[CONF_ID].id
|
||||
await light.register_light(var, config)
|
||||
await cg.register_component(var, config)
|
||||
|
||||
cg.add(var.set_num_leds(config[CONF_NUM_LEDS]))
|
||||
cg.add(var.set_pin(config[CONF_PIN]))
|
||||
|
||||
cg.add(var.set_rgb_order(config[CONF_RGB_ORDER]))
|
||||
cg.add(var.set_is_rgbw(config[CONF_IS_RGBW]))
|
||||
|
||||
cg.add(var.set_pio(config[CONF_PIO]))
|
||||
cg.add(var.set_program(cg.RawExpression(f"&rp2040_pio_led_strip_{id}_program")))
|
||||
cg.add(
|
||||
var.set_init_function(
|
||||
cg.RawExpression(f"rp2040_pio_led_strip_driver_{id}_init")
|
||||
)
|
||||
)
|
||||
|
||||
key = f"led_strip_{id}"
|
||||
|
||||
if CONF_CHIPSET in config:
|
||||
_LOGGER.info("Generating PIO assembly code")
|
||||
rp2040.add_pio_file(
|
||||
__name__,
|
||||
key,
|
||||
generate_assembly_code(
|
||||
id,
|
||||
config[CONF_IS_RGBW],
|
||||
CHIPSETS[config[CONF_CHIPSET]].T0H,
|
||||
CHIPSETS[config[CONF_CHIPSET]].T0L,
|
||||
CHIPSETS[config[CONF_CHIPSET]].T1H,
|
||||
CHIPSETS[config[CONF_CHIPSET]].T1L,
|
||||
),
|
||||
)
|
||||
else:
|
||||
_LOGGER.info("Generating custom PIO assembly code")
|
||||
rp2040.add_pio_file(
|
||||
__name__,
|
||||
key,
|
||||
generate_assembly_code(
|
||||
id,
|
||||
config[CONF_IS_RGBW],
|
||||
time_to_cycles(config[CONF_BIT0_HIGH]),
|
||||
time_to_cycles(config[CONF_BIT0_LOW]),
|
||||
time_to_cycles(config[CONF_BIT1_HIGH]),
|
||||
time_to_cycles(config[CONF_BIT1_LOW]),
|
||||
),
|
||||
)
|
||||
|
|
@ -299,6 +299,16 @@ def copy_src_tree():
|
|||
|
||||
copy_files()
|
||||
|
||||
elif CORE.is_rp2040:
|
||||
from esphome.components.rp2040 import copy_files
|
||||
|
||||
(pio) = copy_files()
|
||||
if pio:
|
||||
write_file_if_changed(
|
||||
CORE.relative_src_path("esphome.h"),
|
||||
ESPHOME_H_FORMAT.format(include_s + '\n#include "pio_includes.h"'),
|
||||
)
|
||||
|
||||
|
||||
def generate_defines_h():
|
||||
define_content_l = [x.as_macro for x in CORE.defines]
|
||||
|
|
|
|||
|
|
@ -37,6 +37,26 @@ switch:
|
|||
output: pin_4
|
||||
id: pin_4_switch
|
||||
|
||||
light:
|
||||
- platform: rp2040_pio_led_strip
|
||||
id: led_strip
|
||||
pin: GPIO13
|
||||
num_leds: 60
|
||||
pio: 0
|
||||
rgb_order: GRB
|
||||
chipset: WS2812
|
||||
- platform: rp2040_pio_led_strip
|
||||
id: led_strip_custom_timings
|
||||
pin: GPIO13
|
||||
num_leds: 60
|
||||
pio: 1
|
||||
rgb_order: GRB
|
||||
bit0_high: .1us
|
||||
bit0_low: 1.2us
|
||||
bit1_high: .69us
|
||||
bit1_low: .4us
|
||||
|
||||
|
||||
sensor:
|
||||
- platform: internal_temperature
|
||||
name: Internal Temperature
|
||||
|
|
|
|||
Loading…
Reference in New Issue