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Commit f60914c7 authored by moon2's avatar moon2 :speech_balloon: Committed by q3k
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added led support kinda

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components/badge23/CMakeLists.txt
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...@@ -12,4 +12,5 @@ idf_component_register( ...@@ -12,4 +12,5 @@ idf_component_register(
include include
REQUIRES REQUIRES
gc9a01 gc9a01
espressif__led_strip
) )
components/badge23/espan.c
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...@@ -57,7 +57,7 @@ void os_app_main(void) ...@@ -57,7 +57,7 @@ void os_app_main(void)
set_global_vol_dB(-90); set_global_vol_dB(-90);
audio_init(); audio_init();
//leds_init(); leds_init();
captouch_init(); captouch_init();
vTaskDelay(2000 / portTICK_PERIOD_MS); vTaskDelay(2000 / portTICK_PERIOD_MS);
......
components/badge23/include/badge23/leds.h
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...@@ -2,7 +2,6 @@ ...@@ -2,7 +2,6 @@
#include <stdint.h> #include <stdint.h>
void leds_init(); void leds_init();
void leds_animate(int leaf);
void leds_set_single_rgb(uint8_t index, uint8_t red, uint8_t green, uint8_t blue); void leds_set_single_rgb(uint8_t index, uint8_t red, uint8_t green, uint8_t blue);
void leds_set_single_hsv(uint8_t index, float hue, float sat, float value); void leds_set_single_hsv(uint8_t index, float hue, float sat, float value);
void leds_update(); void leds_update();
......
components/badge23/leds.c
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#include "badge23/leds.h"
#include "driver/spi_master.h"
#include <freertos/FreeRTOS.h> #include <freertos/FreeRTOS.h>
#include <freertos/task.h> #include <freertos/task.h>
#include <freertos/queue.h> #include <freertos/queue.h>
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <math.h> #include <math.h>
#include "esp_system.h" #include "esp_system.h"
#include "badge23/leds.h"
#include "../../../revision_config.h"
#ifdef HARDWARE_REVISION_01
#define LED_SPI_PORT
#endif
#ifdef HARDWARE_REVISION_04
#define LED_ASYNC_PORT
#endif
typedef struct leds_cfg { typedef struct leds_cfg {
int leaf; int leaf;
...@@ -19,25 +24,7 @@ typedef struct leds_cfg { ...@@ -19,25 +24,7 @@ typedef struct leds_cfg {
int timer; int timer;
} leds_cfg_t; } leds_cfg_t;
static QueueHandle_t leds_queue = NULL;
static leds_cfg_t active_leds[11]; static leds_cfg_t active_leds[11];
static void leds_task(void* arg);
#include "badge23/apa102LEDStrip.h"
static struct apa102LEDStrip leds;
//SPI Vars
static spi_device_handle_t spi_led;
static spi_transaction_t spiTransObject;
static esp_err_t ret;
static spi_bus_config_t buscfg;
static spi_device_interface_config_t devcfg;
#define totalPixels 40
#define bytesPerPixel 4
#define maxValuePerColour 255
#define maxSPIFrameInBytes 8000
#define maxSPIFrequency 10000000
struct RGB struct RGB
{ {
...@@ -128,6 +115,23 @@ struct RGB HSVToRGB(struct HSV hsv) { ...@@ -128,6 +115,23 @@ struct RGB HSVToRGB(struct HSV hsv) {
return rgb; return rgb;
} }
#ifdef LED_SPI_PORT
#include "driver/spi_master.h"
#include "badge23/apa102LEDStrip.h"
#define totalPixels 40
#define bytesPerPixel 4
static struct apa102LEDStrip leds;
static spi_device_handle_t spi_led;
static spi_transaction_t spiTransObject;
static esp_err_t ret;
static spi_bus_config_t buscfg;
static spi_device_interface_config_t devcfg;
#define maxSPIFrameInBytes 8000
#define maxSPIFrequency 10000000
void renderLEDs() void renderLEDs()
{ {
spi_device_queue_trans(spi_led, &spiTransObject, portMAX_DELAY); spi_device_queue_trans(spi_led, &spiTransObject, portMAX_DELAY);
...@@ -158,75 +162,9 @@ static int setupSPI() ...@@ -158,75 +162,9 @@ static int setupSPI()
return ret; return ret;
} }
static uint8_t black[] = {0,0,0}; static void set_single_led(uint8_t index, uint8_t[3] c){
setPixel(&leds, index, c);
static const uint8_t pl[][9] = { }
{39, 0, 1, 2, 3, 4, 5, 6, 7},
{3, 4, 5, 6, 7, 8, 9, 10, 11},
{7, 8, 9, 10, 11, 12, 13, 14, 15},
{11, 12, 13, 14, 15, 16, 17, 18, 19},
{15, 16, 17, 18, 19, 20, 21, 22, 23},
{19, 20, 21, 22, 23, 24, 25, 26, 27},
{23, 24, 25, 26, 27, 28, 29, 30, 31},
{27, 28, 29, 30, 31, 32, 33, 34, 35},
{31, 32, 33, 34, 35, 36, 37, 38, 39},
{35, 36, 37, 38, 39, 0, 1, 2, 3}
};
static const int8_t pan_leds[][11][2] = {
{
{pl[0][4], pl[0][4]}, {pl[0][3], pl[0][5]}, {pl[0][2], pl[0][6]}, {pl[0][1], pl[0][7]}, {pl[0][0], pl[0][8]},
{pl[4][0], pl[6][8]}, {pl[4][1], pl[6][7]}, {pl[4][2], pl[6][6]}, {pl[4][3], pl[6][5]}, {pl[4][4], pl[6][4]}
,{-1, -1}
},
{
{pl[2][4], pl[0][4]}, {pl[2][3], pl[0][5]}, {pl[2][2], pl[0][6]}, {pl[2][1], pl[0][7]}, {pl[2][0], pl[0][8]},
{pl[6][8], pl[6][0]}, {pl[6][6], pl[6][1]}, {pl[6][6], pl[6][2]}, {pl[6][5], pl[6][3]}, {pl[6][4], pl[6][4]}
,{-1, -1}
},
{
{pl[2][4], pl[2][4]}, {pl[2][3], pl[2][5]}, {pl[2][2], pl[2][6]}, {pl[2][1], pl[2][7]}, {pl[2][0], pl[2][8]},
{pl[6][0], pl[8][8]}, {pl[6][1], pl[8][7]}, {pl[6][2], pl[8][6]}, {pl[6][3], pl[8][5]}, {pl[6][4], pl[8][4]}
,{-1, -1}
},
{
{pl[4][4], pl[2][4]}, {pl[4][3], pl[2][5]}, {pl[4][2], pl[2][6]}, {pl[4][1], pl[2][7]}, {pl[4][0], pl[2][8]},
{pl[8][8], pl[8][0]}, {pl[8][6], pl[8][1]}, {pl[8][6], pl[8][2]}, {pl[8][5], pl[8][3]}, {pl[8][4], pl[8][4]}
,{-1, -1}
},
{
{pl[4][4], pl[4][4]}, {pl[4][3], pl[4][5]}, {pl[4][2], pl[4][6]}, {pl[4][1], pl[4][7]}, {pl[4][0], pl[4][8]},
{pl[8][0], pl[0][8]}, {pl[8][1], pl[0][7]}, {pl[8][2], pl[0][6]}, {pl[8][3], pl[0][5]}, {pl[8][4], pl[0][4]}
,{-1, -1}
},
{
{pl[6][4], pl[4][4]}, {pl[6][3], pl[4][5]}, {pl[6][2], pl[4][6]}, {pl[6][1], pl[4][7]}, {pl[6][0], pl[4][8]},
{pl[0][8], pl[0][0]}, {pl[0][6], pl[0][1]}, {pl[0][6], pl[0][2]}, {pl[0][5], pl[0][3]}, {pl[0][4], pl[0][4]}
,{-1, -1}
},
{
{pl[6][4], pl[6][4]}, {pl[6][3], pl[6][5]}, {pl[6][2], pl[6][6]}, {pl[6][1], pl[6][7]}, {pl[6][0], pl[6][8]},
{pl[0][0], pl[6][2]}, {pl[0][1], pl[2][7]}, {pl[0][2], pl[2][6]}, {pl[0][3], pl[2][5]}, {pl[0][4], pl[2][4]}
,{-1, -1}
},
{
{pl[8][4], pl[6][4]}, {pl[8][3], pl[6][5]}, {pl[8][2], pl[6][6]}, {pl[8][1], pl[6][7]}, {pl[8][0], pl[6][8]},
{pl[2][8], pl[2][0]}, {pl[2][6], pl[2][1]}, {pl[2][6], pl[2][2]}, {pl[2][5], pl[2][3]}, {pl[2][4], pl[2][4]}
,{-1, -1}
},
{
{pl[8][4], pl[8][4]}, {pl[8][3], pl[8][5]}, {pl[8][2], pl[8][6]}, {pl[8][1], pl[8][7]}, {pl[8][0], pl[8][8]},
{pl[2][0], pl[4][4]}, {pl[2][1], pl[4][7]}, {pl[2][2], pl[4][6]}, {pl[2][3], pl[4][5]}, {pl[2][4], pl[4][4]}
,{-1, -1}
},
{
{pl[0][4], pl[8][4]}, {pl[0][3], pl[8][5]}, {pl[0][2], pl[8][6]}, {pl[0][1], pl[8][7]}, {pl[0][0], pl[8][8]},
{pl[4][8], pl[4][0]}, {pl[4][6], pl[4][1]}, {pl[4][6], pl[4][2]}, {pl[4][5], pl[4][3]}, {pl[4][4], pl[4][4]}
,{-1, -1}
},
};
static void _leds_init() { static void _leds_init() {
leds_queue = xQueueCreate(10, sizeof(leds_cfg_t)); leds_queue = xQueueCreate(10, sizeof(leds_cfg_t));
...@@ -244,105 +182,82 @@ static void _leds_init() { ...@@ -244,105 +182,82 @@ static void _leds_init() {
TaskHandle_t handle; TaskHandle_t handle;
//xTaskCreate(&leds_task, "LEDs player", 4096, NULL, configMAX_PRIORITIES - 2, &handle); //xTaskCreate(&leds_task, "LEDs player", 4096, NULL, configMAX_PRIORITIES - 2, &handle);
} }
#endif
#ifdef LED_ASYNC_PORT
#include "../../espressif__led_strip/include/led_strip.h"
led_strip_t *led_strip_init(uint8_t channel, uint8_t gpio, uint16_t led_num);
#define LED_GPIO_NUM 14
#define LED_RMT_CHAN 0
#if 0
//ESP-IDF 5.0 for reference
led_strip_handle_t led_strip;
/* LED strip initialization with the GPIO and pixels number*/
led_strip_config_t strip_config = {
.strip_gpio_num = 14, // The GPIO that connected to the LED strip's data line
.max_leds = 40, // The number of LEDs in the strip,
.led_pixel_format = LED_PIXEL_FORMAT_GRB, // Pixel format of your LED strip
.led_model = LED_MODEL_WS2812, // LED strip model
.flags.invert_out = false, // whether to invert the output signal (useful when your hardware has a level inverter)
};
static bool leds_active(void) led_strip_rmt_config_t rmt_config = {
{ .clk_src = RMT_CLK_SRC_DEFAULT, // different clock source can lead to different power consumption
for(size_t i=0; i<sizeof(active_leds) / sizeof(active_leds[0]); i++) { .resolution_hz = 10 * 1000 * 1000, // 10MHz
if(active_leds[i].size != active_leds[i].position) { .flags.with_dma = true, // whether to enable the DMA feature
return true; };
}
}
return false;
}
static void leds_task(void* arg) {
leds_cfg_t leds_;
static int timer = 0;
while(true) {
if(xQueueReceive(leds_queue, &leds_, 1)) {
leds_.position = 0;
active_leds[leds_.slot] = leds_;
}
if(leds_active()) {
for(int i=0; i<40; i++) {
setPixel(&leds, i, black);
}
for(size_t i=0; i<sizeof(active_leds) / sizeof(active_leds[0]); i++) {
if(active_leds[i].size == active_leds[i].position) continue;
int leaf = active_leds[i].leaf;
int position = active_leds[i].position;
uint8_t c[] = {0,0,0};
if(leaf % 2 == 0)
c[0] = 32;
else
c[2] = 32;
struct RGB rgb = HSVToRGB((struct HSV){leaf/9.*360,1,1});
c[0] = rgb.R / 4;
c[1] = rgb.G / 4;
c[2] = rgb.B / 4;
if(pan_leds[leaf][position][0] >= 0)
setPixel(&leds, pan_leds[leaf][position][0], c);
if(pan_leds[leaf][position][1] >= 0)
setPixel(&leds, pan_leds[leaf][position][1], c);
if(active_leds[i].timer-- == 0) { static void renderLEDs()
active_leds[i].timer = 2; {
active_leds[i].position += 1; ESP_ERROR_CHECK(led_strip_refresh(led_strip));
}
} }
renderLEDs(); void set_single_led(int led, uint8_t c[3])
timer = 30; {
} led = ((39-led) + 1 + 32)%40;
ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, led, c[0], c[1], c[2]));
}
static int phase = 0; static void _leds_init() {
memset(active_leds, 0 , sizeof(active_leds));
if(!leds_active()) { ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip));
// background anim
if(timer-- == 0) { TaskHandle_t handle;
timer = 60; xTaskCreate(&leds_task, "LEDs player", 4096, NULL, configMAX_PRIORITIES - 2, &handle);
for(int i=0; i<40; i++) { }
setPixel(&leds, i, black); #endif
}
if(phase++ == 360) { led_strip_t * led_strip;
phase = 0;
}
uint8_t c[] = {0,0,0}; static void _leds_init(){
memset(active_leds, 0 , sizeof(active_leds));
led_strip = led_strip_init(LED_RMT_CHAN, LED_GPIO_NUM, 40);
}
for(int i=0; i<40; i++) { void set_single_led(uint8_t index, uint8_t c[3]){
struct RGB rgb = HSVToRGB((struct HSV){(phase+i*3) % 360,1,0.125}); index = ((39-index) + 1 + 32)%40;
c[0] = rgb.R / 1; led_strip->set_pixel(led_strip, index, c[0], c[1], c[2]);
c[1] = rgb.G / 1; }
c[2] = rgb.B / 1;
setPixel(&leds, i, c);
}
renderLEDs(); static void renderLEDs(){
} led_strip->refresh(led_strip, 1000);
}
}
} }
#endif
void leds_set_single_rgb(uint8_t index, uint8_t red, uint8_t green, uint8_t blue){ void leds_set_single_rgb(uint8_t index, uint8_t red, uint8_t green, uint8_t blue){
uint8_t c[3]; uint8_t c[3];
c[0] = red; c[0] = red;
c[1] = green; c[1] = green;
c[2] = blue; c[2] = blue;
setPixel(&leds, index, c); set_single_led(index, c);
} }
void leds_set_single_hsv(uint8_t index, float hue, float sat, float val){ void leds_set_single_hsv(uint8_t index, float hue, float sat, float val){
struct RGB rgb; struct RGB rgb;
struct HSV hsv; struct HSV hsv;
...@@ -356,22 +271,13 @@ void leds_set_single_hsv(uint8_t index, float hue, float sat, float val){ ...@@ -356,22 +271,13 @@ void leds_set_single_hsv(uint8_t index, float hue, float sat, float val){
c[0] = rgb.R; c[0] = rgb.R;
c[1] = rgb.G; c[1] = rgb.G;
c[2] = rgb.B; c[2] = rgb.B;
setPixel(&leds, index, c); set_single_led(index, c);
} }
void leds_update(){ void leds_update(){
vTaskDelay(10 / portTICK_PERIOD_MS); vTaskDelay(10 / portTICK_PERIOD_MS); //do we...
renderLEDs(); renderLEDs();
vTaskDelay(10 / portTICK_PERIOD_MS); vTaskDelay(10 / portTICK_PERIOD_MS); //...need these?
} }
void leds_init() { _leds_init(); } void leds_init() { _leds_init(); }
void leds_animate(int leaf) {
leds_cfg_t leds = {0,};
leds.leaf = leaf;
leds.slot = leaf;
leds.size = 11;
xQueueSend(leds_queue, &leds, 0);
}
components/espressif__led_strip/CMakeLists.txt 0 → 100644
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idf_component_register(SRCS "led_strip_rmt_ws2812.c"
INCLUDE_DIRS "include"
PRIV_REQUIRES "driver"
)
components/espressif__led_strip/README.md 0 → 100644
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# LED Strip Component
This directory contains an implementation for addressable LEDs using the RMT peripheral.
It's compatible with:
* [WS2812](http://www.world-semi.com/Certifications/WS2812B.html)
* SK68XX
This component is used as part of the following ESP-IDF examples:
- [Blink Example](../../get-started/blink).
- [LED Strip Example](../../peripherals/rmt/led_strip).
To learn more about how to use this component, please check API Documentation from header file [led_strip.h](./include/led_strip.h).
Please note that this component is not considered to be a part of ESP-IDF stable API. It may change and it may be removed in the future releases.
components/espressif__led_strip/idf_component.yml 0 → 100644
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version: "1.1.0-alpha"
description: C driver, based on RMT peripheral, for WS2812 and SK6812 smart RGB diodes
dependencies:
# Required IDF version
idf:
version: ">=4.0"
components/espressif__led_strip/include/led_strip.h 0 → 100644
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// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include "esp_err.h"
/**
* @brief LED Strip Type
*
*/
typedef struct led_strip_s led_strip_t;
/**
* @brief LED Strip Device Type
*
*/
typedef void *led_strip_dev_t;
/**
* @brief Declare of LED Strip Type
*
*/
struct led_strip_s {
/**
* @brief Set RGB for a specific pixel
*
* @param strip: LED strip
* @param index: index of pixel to set
* @param red: red part of color
* @param green: green part of color
* @param blue: blue part of color
*
* @return
* - ESP_OK: Set RGB for a specific pixel successfully
* - ESP_ERR_INVALID_ARG: Set RGB for a specific pixel failed because of invalid parameters
* - ESP_FAIL: Set RGB for a specific pixel failed because other error occurred
*/
esp_err_t (*set_pixel)(led_strip_t *strip, uint32_t index, uint32_t red, uint32_t green, uint32_t blue);
/**
* @brief Refresh memory colors to LEDs
*
* @param strip: LED strip
* @param timeout_ms: timeout value for refreshing task
*
* @return
* - ESP_OK: Refresh successfully
* - ESP_ERR_TIMEOUT: Refresh failed because of timeout
* - ESP_FAIL: Refresh failed because some other error occurred
*
* @note:
* After updating the LED colors in the memory, a following invocation of this API is needed to flush colors to strip.
*/
esp_err_t (*refresh)(led_strip_t *strip, uint32_t timeout_ms);
/**
* @brief Clear LED strip (turn off all LEDs)
*
* @param strip: LED strip
* @param timeout_ms: timeout value for clearing task
*
* @return
* - ESP_OK: Clear LEDs successfully
* - ESP_ERR_TIMEOUT: Clear LEDs failed because of timeout
* - ESP_FAIL: Clear LEDs failed because some other error occurred
*/
esp_err_t (*clear)(led_strip_t *strip, uint32_t timeout_ms);
/**
* @brief Free LED strip resources
*
* @param strip: LED strip
*
* @return
* - ESP_OK: Free resources successfully
* - ESP_FAIL: Free resources failed because error occurred
*/
esp_err_t (*del)(led_strip_t *strip);
};
/**
* @brief LED Strip Configuration Type
*
*/
typedef struct {
uint32_t max_leds; /*!< Maximum LEDs in a single strip */
led_strip_dev_t dev; /*!< LED strip device (e.g. RMT channel, PWM channel, etc) */
} led_strip_config_t;
/**
* @brief Default configuration for LED strip
*
*/
#define LED_STRIP_DEFAULT_CONFIG(number, dev_hdl) \
{ \
.max_leds = number, \
.dev = dev_hdl, \
}
/**
* @brief Install a new ws2812 driver (based on RMT peripheral)
*
* @param config: LED strip configuration
* @return
* LED strip instance or NULL
*/
led_strip_t *led_strip_new_rmt_ws2812(const led_strip_config_t *config);
/**
* @brief Init the RMT peripheral and LED strip configuration.
*
* @param[in] channel: RMT peripheral channel number.
* @param[in] gpio: GPIO number for the RMT data output.
* @param[in] led_num: number of addressable LEDs.
* @return
* LED strip instance or NULL
*/
led_strip_t *led_strip_init(uint8_t channel, uint8_t gpio, uint16_t led_num);
/**
* @brief Denit the RMT peripheral.
*
* @param[in] strip: LED strip
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t led_strip_denit(led_strip_t *strip);
#ifdef __cplusplus
}
#endif
components/espressif__led_strip/led_strip_rmt_ws2812.c 0 → 100644
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// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdlib.h>
#include <string.h>
#include <sys/cdefs.h>
#include "esp_log.h"
#include "esp_attr.h"
#include "led_strip.h"
#include "driver/rmt.h"
#define RMT_TX_CHANNEL RMT_CHANNEL_0
static const char *TAG = "ws2812";
#define STRIP_CHECK(a, str, goto_tag, ret_value, ...) \
do \
{ \
if (!(a)) \
{ \
ESP_LOGE(TAG, "%s(%d): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
ret = ret_value; \
goto goto_tag; \
} \
} while (0)
#define WS2812_T0H_NS (350)
#define WS2812_T0L_NS (1000)
#define WS2812_T1H_NS (1000)
#define WS2812_T1L_NS (350)
#define WS2812_RESET_US (280)
static uint32_t ws2812_t0h_ticks = 0;
static uint32_t ws2812_t1h_ticks = 0;
static uint32_t ws2812_t0l_ticks = 0;
static uint32_t ws2812_t1l_ticks = 0;
typedef struct {
led_strip_t parent;
rmt_channel_t rmt_channel;
uint32_t strip_len;
uint8_t buffer[0];
} ws2812_t;
/**
* @brief Conver RGB data to RMT format.
*
* @note For WS2812, R,G,B each contains 256 different choices (i.e. uint8_t)
*
* @param[in] src: source data, to converted to RMT format
* @param[in] dest: place where to store the convert result
* @param[in] src_size: size of source data
* @param[in] wanted_num: number of RMT items that want to get
* @param[out] translated_size: number of source data that got converted
* @param[out] item_num: number of RMT items which are converted from source data
*/
static void IRAM_ATTR ws2812_rmt_adapter(const void *src, rmt_item32_t *dest, size_t src_size,
size_t wanted_num, size_t *translated_size, size_t *item_num)
{
if (src == NULL || dest == NULL) {
*translated_size = 0;
*item_num = 0;
return;
}
const rmt_item32_t bit0 = {{{ ws2812_t0h_ticks, 1, ws2812_t0l_ticks, 0 }}}; //Logical 0
const rmt_item32_t bit1 = {{{ ws2812_t1h_ticks, 1, ws2812_t1l_ticks, 0 }}}; //Logical 1
size_t size = 0;
size_t num = 0;
uint8_t *psrc = (uint8_t *)src;
rmt_item32_t *pdest = dest;
while (size < src_size && num < wanted_num) {
for (int i = 0; i < 8; i++) {
// MSB first
if (*psrc & (1 << (7 - i))) {
pdest->val = bit1.val;
} else {
pdest->val = bit0.val;
}
num++;
pdest++;
}
size++;
psrc++;
}
*translated_size = size;
*item_num = num;
}
static esp_err_t ws2812_set_pixel(led_strip_t *strip, uint32_t index, uint32_t red, uint32_t green, uint32_t blue)
{
esp_err_t ret = ESP_OK;
ws2812_t *ws2812 = __containerof(strip, ws2812_t, parent);
STRIP_CHECK(index < ws2812->strip_len, "index out of the maximum number of leds", err, ESP_ERR_INVALID_ARG);
uint32_t start = index * 3;
// In thr order of GRB
ws2812->buffer[start + 0] = green & 0xFF;
ws2812->buffer[start + 1] = red & 0xFF;
ws2812->buffer[start + 2] = blue & 0xFF;
return ESP_OK;
err:
return ret;
}
static esp_err_t ws2812_refresh(led_strip_t *strip, uint32_t timeout_ms)
{
esp_err_t ret = ESP_OK;
ws2812_t *ws2812 = __containerof(strip, ws2812_t, parent);
STRIP_CHECK(rmt_write_sample(ws2812->rmt_channel, ws2812->buffer, ws2812->strip_len * 3, true) == ESP_OK,
"transmit RMT samples failed", err, ESP_FAIL);
return rmt_wait_tx_done(ws2812->rmt_channel, pdMS_TO_TICKS(timeout_ms));
err:
return ret;
}
static esp_err_t ws2812_clear(led_strip_t *strip, uint32_t timeout_ms)
{
ws2812_t *ws2812 = __containerof(strip, ws2812_t, parent);
// Write zero to turn off all leds
memset(ws2812->buffer, 0, ws2812->strip_len * 3);
return ws2812_refresh(strip, timeout_ms);
}
static esp_err_t ws2812_del(led_strip_t *strip)
{
ws2812_t *ws2812 = __containerof(strip, ws2812_t, parent);
free(ws2812);
return ESP_OK;
}
led_strip_t *led_strip_new_rmt_ws2812(const led_strip_config_t *config)
{
led_strip_t *ret = NULL;
STRIP_CHECK(config, "configuration can't be null", err, NULL);
// 24 bits per led
uint32_t ws2812_size = sizeof(ws2812_t) + config->max_leds * 3;
ws2812_t *ws2812 = calloc(1, ws2812_size);
STRIP_CHECK(ws2812, "request memory for ws2812 failed", err, NULL);
uint32_t counter_clk_hz = 0;
STRIP_CHECK(rmt_get_counter_clock((rmt_channel_t)config->dev, &counter_clk_hz) == ESP_OK,
"get rmt counter clock failed", err, NULL);
// ns -> ticks
float ratio = (float)counter_clk_hz / 1e9;
ws2812_t0h_ticks = (uint32_t)(ratio * WS2812_T0H_NS);
ws2812_t0l_ticks = (uint32_t)(ratio * WS2812_T0L_NS);
ws2812_t1h_ticks = (uint32_t)(ratio * WS2812_T1H_NS);
ws2812_t1l_ticks = (uint32_t)(ratio * WS2812_T1L_NS);
// set ws2812 to rmt adapter
rmt_translator_init((rmt_channel_t)config->dev, ws2812_rmt_adapter);
ws2812->rmt_channel = (rmt_channel_t)config->dev;
ws2812->strip_len = config->max_leds;
ws2812->parent.set_pixel = ws2812_set_pixel;
ws2812->parent.refresh = ws2812_refresh;
ws2812->parent.clear = ws2812_clear;
ws2812->parent.del = ws2812_del;
return &ws2812->parent;
err:
return ret;
}
led_strip_t *led_strip_init(uint8_t channel, uint8_t gpio, uint16_t led_num)
{
static led_strip_t *pStrip;
rmt_config_t config = RMT_DEFAULT_CONFIG_TX(gpio, channel);
// set counter clock to 40MHz
config.clk_div = 2;
ESP_ERROR_CHECK(rmt_config(&config));
ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
// install ws2812 driver
led_strip_config_t strip_config = LED_STRIP_DEFAULT_CONFIG(led_num, (led_strip_dev_t)config.channel);
pStrip = led_strip_new_rmt_ws2812(&strip_config);
if ( !pStrip ) {
ESP_LOGE(TAG, "install WS2812 driver failed");
return NULL;
}
// Clear LED strip (turn off all LEDs)
// This will fail for inverted output
//ESP_ERROR_CHECK(pStrip->clear(pStrip, 100));
return pStrip;
}
esp_err_t led_strip_denit(led_strip_t *strip)
{
ws2812_t *ws2812 = __containerof(strip, ws2812_t, parent);
ESP_ERROR_CHECK(rmt_driver_uninstall(ws2812->rmt_channel));
return strip->del(strip);
}
components/espressif__led_strip/license.txt 0 → 100644
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View file @ f60914c7
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