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add neopixel led strip driver for saola, make saola as an component

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This commit is contained in:
hathach
2020-04-09 00:06:18 +07:00
parent bfde988af3
commit cefbd9579c
6 changed files with 340 additions and 14 deletions
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30
hw/bsp/esp32s2_saola_1/esp32s2_saola_1.c
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@@ -24,26 +24,41 @@
* This file is part of the TinyUSB stack.
*/
#include "bsp/board.h"
#include "../board.h"
#include "driver/gpio.h"
#include "hal/usb_hal.h"
#include "driver/rmt.h"
#include "led_strip/include/led_strip.h"
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM DECLARATION
//--------------------------------------------------------------------+
// TODO use saola-1 on-board neopixel (WS2812)
#define LED_PIN 21
// Note: On the production version (v1.2) WS2812 is connected to GPIO 18,
// however earlier revision v1.1 WS2812 is connected to GPIO 17
//#define LED_PIN 18 // v1.2 and later
#define LED_PIN 17 // v1.1
#define BUTTON_PIN 0
#define BUTTON_STATE_ACTIVE 0
static led_strip_t *strip;
// Initialize on-board peripherals : led, button, uart and USB
void board_init(void)
{
// LED
gpio_pad_select_gpio(LED_PIN);
gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);
// WS2812 Neopixel driver with RMT peripheral
rmt_config_t config = RMT_DEFAULT_CONFIG_TX(LED_PIN, RMT_CHANNEL_0);
config.clk_div = 2; // set counter clock to 40MHz
rmt_config(&config);
rmt_driver_install(config.channel, 0, 0);
led_strip_config_t strip_config = LED_STRIP_DEFAULT_CONFIG(1, (led_strip_dev_t) config.channel);
strip = led_strip_new_rmt_ws2812(&strip_config);
strip->clear(strip, 100); // off led
// Button
gpio_pad_select_gpio(BUTTON_PIN);
@@ -60,7 +75,8 @@ void board_init(void)
// Turn LED on or off
void board_led_write(bool state)
{
gpio_set_level(LED_PIN, state);
strip->set_pixel(strip, 0, (state ? 0x88 : 0x00), 0x00, 0x00);
strip->refresh(strip, 100);
}
// Get the current state of button