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espressif: group boards using target name as a family

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`hw\bsp` separate one family folder to esp32s2, esp32s3
add board specific board.cmake file to override board specific options(features)
fix examples and test scripts to use new family approach
This commit is contained in:
Alex Lisitsyn
2021-04-16 13:37:14 +02:00
parent 2f0cb8b5f1
commit f5e02e72ed
49 changed files with 618 additions and 154 deletions
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171
hw/bsp/esp32s3/components/led_strip/src/led_strip_rmt_ws2812.c Normal file
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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"
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;
}