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#include "driver/spi_master.h"
#include "drv/ws2812b.h"
#include "esp_spi_flash.h"
#include "esp_system.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "lwip/sockets.h"
#include "sdkconfig.h"
#include "station.h"
#ifdef CONFIG_IDF_TARGET_ESP32
#define LCD_HOST HSPI_HOST
#define PIN_NUM_MISO 25
#define PIN_NUM_MOSI 23
#define PIN_NUM_CLK 19
#define PIN_NUM_CS 22
#define PIN_NUM_DC 21
#define PIN_NUM_RST 18
#define PIN_NUM_BCKL 5
#elif defined CONFIG_IDF_TARGET_ESP32S2
#define LCD_HOST SPI2_HOST
#define PIN_NUM_MISO 37
#define PIN_NUM_MOSI 35
#define PIN_NUM_CLK 36
#define PIN_NUM_CS 34
#define PIN_NUM_DC 4
#define PIN_NUM_RST 5
#define PIN_NUM_BCKL 6
#elif defined CONFIG_IDF_TARGET_ESP32C3
#define LCD_HOST SPI2_HOST
#define PIN_NUM_MISO 2
#define PIN_NUM_MOSI 7
#define PIN_NUM_CLK 6
#define PIN_NUM_CS 10
#define PIN_NUM_DC 9
#define PIN_NUM_RST 4
#define PIN_NUM_BCKL 5
#endif
struct {
char color[32];
ws2812b_t* drv;
} ws_params;
#define SIZE 300
void calculate_colors(ws2812b_buffer_t* buffer)
{
/* RACE Conditions for sure. Need to fix that. */
ws2812b_rgb_t color = {0};
if (!strcmp(ws_params.color, "black\n")) {
} else if (!strcmp(ws_params.color, "green\n")) {
color.g = 255;
} else if (!strcmp(ws_params.color, "red\n")) {
color.r = 255;
} else if (!strcmp(ws_params.color, "blue\n")) {
color.b = 255;
} else if (!strcmp(ws_params.color, "yellow\n")) {
color.r = 255;
color.g = 255;
} else if (!strcmp(ws_params.color, "magenta\n")) {
color.r = 255;
color.b = 255;
} else if (!strcmp(ws_params.color, "teal\n")) {
color.g = 255;
color.b = 255;
} else {
color.r = 128;
color.g = 128;
color.b = 128;
}
int i;
for (i = 0; i < SIZE; ++i) {
ws2812b_buffer_set_color(buffer, i, &color);
}
}
portTASK_FUNCTION(ws2812b_write_task, params)
{
strcpy(ws_params.color, "red\n");
ws2812b_buffer_t* buffer = ws2812b_new_buffer(SIZE);
for (;;) {
calculate_colors(buffer);
ws2812b_write(ws_params.drv, buffer);
vTaskDelay(10 / portTICK_PERIOD_MS);
}
}
portTASK_FUNCTION(tcp_server, params)
{
wifi_init_station("Wort", "JoshIsBau5");
int s = socket(AF_INET, SOCK_STREAM, 0);
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_port = htons(1234);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
int err = bind(s, (struct sockaddr*)&addr, sizeof(addr));
if (err) {
printf("Error binding to sockaddr: %d\n", err);
return;
}
printf("Listening ...\n");
listen(s, 1);
while (true) {
printf("Waiting for connection... \n");
struct sockaddr_in client_addr;
socklen_t size;
int sock = accept(s, (struct sockaddr*)&client_addr, &size);
printf("Accepted connection\n");
ssize_t len;
while ((len = read(sock, ws_params.color, sizeof(ws_params.color) - 1)) >
0) {
ws_params.color[len] = 0;
printf("Read %s\n", ws_params.color);
}
}
}
void app_main(void)
{
esp_err_t error;
spi_device_handle_t spi;
spi_bus_config_t cfg = {
.miso_io_num = PIN_NUM_MISO,
.mosi_io_num = PIN_NUM_MOSI,
.sclk_io_num = PIN_NUM_CLK,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = 320 * 2 + 8,
};
spi_device_interface_config_t devcfg = {
.clock_speed_hz = 24 * 100 * 1000, /* 2.5 MHz */
.mode = 0,
.spics_io_num = PIN_NUM_CS,
.queue_size = 7,
.pre_cb = NULL,
};
printf("Hello, World!\n");
printf("miso: %d\n", PIN_NUM_MISO);
printf("mosi: %d\n", PIN_NUM_MOSI);
printf("sclk: %d\n", PIN_NUM_CLK);
error = spi_bus_initialize(HSPI_HOST, &cfg, SPI_DMA_CH_AUTO);
printf("Bus Init\n");
ESP_ERROR_CHECK(error);
error = spi_bus_add_device(HSPI_HOST, &devcfg, &spi);
printf("Add Device\n");
ESP_ERROR_CHECK(error);
ws_params.drv = ws2812b_init(spi);
printf("Configuration complete!!\n");
xTaskCreate(ws2812b_write_task, "ws2812b_writer", 4096, NULL, 1, NULL);
xTaskCreate(tcp_server, "tcp_server", 4096, NULL, 2, NULL);
}
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