diff --git a/examples/device/cdc_msc_freertos/CMakeLists.txt b/examples/device/cdc_msc_freertos/CMakeLists.txt index 339f43a0..146b49cb 100644 --- a/examples/device/cdc_msc_freertos/CMakeLists.txt +++ b/examples/device/cdc_msc_freertos/CMakeLists.txt @@ -7,7 +7,7 @@ set(TOP "../../..") get_filename_component(TOP "${TOP}" REALPATH) # Add example src and bsp directories -set(EXTRA_COMPONENT_DIRS "src" "${TOP}/hw/bsp/${BOARD}") +set(EXTRA_COMPONENT_DIRS "src" "${TOP}/hw/bsp/esp32s2/boards" "${TOP}/hw/bsp/esp32s2/components") include($ENV{IDF_PATH}/tools/cmake/project.cmake) set(SUPPORTED_TARGETS esp32s2) diff --git a/examples/rules.mk b/examples/rules.mk index 37e0e7a1..921f4a38 100644 --- a/examples/rules.mk +++ b/examples/rules.mk @@ -11,12 +11,26 @@ ifeq ($(CROSS_COMPILE),xtensa-esp32s2-elf-) all: idf.py -B$(BUILD) -DBOARD=$(BOARD) build +build: all + clean: idf.py -B$(BUILD) -DBOARD=$(BOARD) clean flash: idf.py -B$(BUILD) -DBOARD=$(BOARD) flash +bootloader-flash: + idf.py -B$(BUILD) -DBOARD=$(BOARD) bootloader-flash + +app-flash: + idf.py -B$(BUILD) -DBOARD=$(BOARD) app-flash + +erase: + idf.py -B$(BUILD) -DBOARD=$(BOARD) erase_flash + +monitor: + idf.py -B$(BUILD) -DBOARD=$(BOARD) monitor + else # GNU Make build system diff --git a/hw/bsp/esp32s2_saola_1/CMakeLists.txt b/hw/bsp/esp32s2/boards/CMakeLists.txt similarity index 67% rename from hw/bsp/esp32s2_saola_1/CMakeLists.txt rename to hw/bsp/esp32s2/boards/CMakeLists.txt index 629b3104..98c929ef 100644 --- a/hw/bsp/esp32s2_saola_1/CMakeLists.txt +++ b/hw/bsp/esp32s2/boards/CMakeLists.txt @@ -1,7 +1,7 @@ -idf_component_register(SRCS "${BOARD}.c" "led_strip/src/led_strip_rmt_ws2812.c" - INCLUDE_DIRS "led_strip/include" +idf_component_register(SRCS esp32s2.c + INCLUDE_DIRS "." "${BOARD}" PRIV_REQUIRES "driver" - REQUIRES freertos src) + REQUIRES freertos src led_strip) target_compile_options(${COMPONENT_TARGET} PUBLIC "-DCFG_TUSB_MCU=OPT_MCU_ESP32S2" diff --git a/hw/bsp/esp32s2_kaluga_1/esp32s2_kaluga_1.c b/hw/bsp/esp32s2/boards/esp32s2.c similarity index 94% rename from hw/bsp/esp32s2_kaluga_1/esp32s2_kaluga_1.c rename to hw/bsp/esp32s2/boards/esp32s2.c index 47f9c2d4..abed39e4 100644 --- a/hw/bsp/esp32s2_kaluga_1/esp32s2_kaluga_1.c +++ b/hw/bsp/esp32s2/boards/esp32s2.c @@ -24,23 +24,22 @@ * This file is part of the TinyUSB stack. */ -#include "../board.h" +#include "../../board.h" +#include "board.h" + #include "esp_rom_gpio.h" #include "hal/gpio_ll.h" #include "hal/usb_hal.h" #include "soc/usb_periph.h" + #include "driver/periph_ctrl.h" #include "driver/rmt.h" -#include "led_strip/include/led_strip.h" +#include "led_strip.h" //--------------------------------------------------------------------+ // MACRO TYPEDEF CONSTANT ENUM DECLARATION //--------------------------------------------------------------------+ -#define LED_PIN 45 -#define BUTTON_PIN 0 -#define BUTTON_STATE_ACTIVE 0 - static void configure_pins(usb_hal_context_t *usb); static led_strip_t *strip; @@ -48,7 +47,7 @@ static led_strip_t *strip; void board_init(void) { // WS2812 Neopixel driver with RMT peripheral - rmt_config_t config = RMT_DEFAULT_CONFIG_TX(LED_PIN, RMT_CHANNEL_0); + rmt_config_t config = RMT_DEFAULT_CONFIG_TX(NEOPIXEL_PIN, RMT_CHANNEL_0); config.clk_div = 2; // set counter clock to 40MHz rmt_config(&config); diff --git a/hw/bsp/esp32s2/boards/esp32s2_kaluga_1/board.h b/hw/bsp/esp32s2/boards/esp32s2_kaluga_1/board.h new file mode 100644 index 00000000..6bb44f76 --- /dev/null +++ b/hw/bsp/esp32s2/boards/esp32s2_kaluga_1/board.h @@ -0,0 +1,44 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020, Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#ifndef BOARD_H_ +#define BOARD_H_ + +#ifdef __cplusplus + extern "C" { +#endif + +// Note: need to insert jumper next to WS2812 pixel +#define NEOPIXEL_PIN 45 + +#define BUTTON_PIN 0 +#define BUTTON_STATE_ACTIVE 0 + +#ifdef __cplusplus + } +#endif + +#endif /* BOARD_H_ */ diff --git a/hw/bsp/esp32s2/boards/esp32s2_saola_1/board.h b/hw/bsp/esp32s2/boards/esp32s2_saola_1/board.h new file mode 100644 index 00000000..f450b9a8 --- /dev/null +++ b/hw/bsp/esp32s2/boards/esp32s2_saola_1/board.h @@ -0,0 +1,45 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020, Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#ifndef BOARD_H_ +#define BOARD_H_ + +#ifdef __cplusplus + extern "C" { +#endif + +// 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 NEOPIXEL_PIN 18 + +#define BUTTON_PIN 0 +#define BUTTON_STATE_ACTIVE 0 + +#ifdef __cplusplus + } +#endif + +#endif /* BOARD_H_ */ diff --git a/hw/bsp/esp32s2/components/led_strip/CMakeLists.txt b/hw/bsp/esp32s2/components/led_strip/CMakeLists.txt new file mode 100644 index 00000000..6d0fcbc8 --- /dev/null +++ b/hw/bsp/esp32s2/components/led_strip/CMakeLists.txt @@ -0,0 +1,8 @@ +set(component_srcs "src/led_strip_rmt_ws2812.c") + +idf_component_register(SRCS "${component_srcs}" + INCLUDE_DIRS "include" + PRIV_INCLUDE_DIRS "" + PRIV_REQUIRES "driver" + REQUIRES "") + diff --git a/hw/bsp/esp32s2_kaluga_1/led_strip/include/led_strip.h b/hw/bsp/esp32s2/components/led_strip/include/led_strip.h similarity index 100% rename from hw/bsp/esp32s2_kaluga_1/led_strip/include/led_strip.h rename to hw/bsp/esp32s2/components/led_strip/include/led_strip.h diff --git a/hw/bsp/esp32s2_kaluga_1/led_strip/src/led_strip_rmt_ws2812.c b/hw/bsp/esp32s2/components/led_strip/src/led_strip_rmt_ws2812.c similarity index 100% rename from hw/bsp/esp32s2_kaluga_1/led_strip/src/led_strip_rmt_ws2812.c rename to hw/bsp/esp32s2/components/led_strip/src/led_strip_rmt_ws2812.c diff --git a/hw/bsp/esp32s2_kaluga_1/board.mk b/hw/bsp/esp32s2/family.mk similarity index 100% rename from hw/bsp/esp32s2_kaluga_1/board.mk rename to hw/bsp/esp32s2/family.mk diff --git a/hw/bsp/esp32s2_kaluga_1/CMakeLists.txt b/hw/bsp/esp32s2_kaluga_1/CMakeLists.txt deleted file mode 100644 index 1627f39a..00000000 --- a/hw/bsp/esp32s2_kaluga_1/CMakeLists.txt +++ /dev/null @@ -1,16 +0,0 @@ -idf_component_register(SRCS "${BOARD}.c" "led_strip/src/led_strip_rmt_ws2812.c" - INCLUDE_DIRS "led_strip/include" - PRIV_REQUIRES "driver" - REQUIRES freertos src) - -target_compile_options(${COMPONENT_TARGET} PUBLIC - "-DCFG_TUSB_MCU=OPT_MCU_ESP32S2" - "-DCFG_TUSB_OS=OPT_OS_FREERTOS" -) - -idf_component_get_property( FREERTOS_ORIG_INCLUDE_PATH freertos ORIG_INCLUDE_PATH) -target_include_directories(${COMPONENT_TARGET} PUBLIC - "${FREERTOS_ORIG_INCLUDE_PATH}" - "${TOP}/hw" - "${TOP}/src" -) diff --git a/hw/bsp/esp32s2_saola_1/board.mk b/hw/bsp/esp32s2_saola_1/board.mk deleted file mode 100644 index 167ef622..00000000 --- a/hw/bsp/esp32s2_saola_1/board.mk +++ /dev/null @@ -1,2 +0,0 @@ -# Cross Compiler for ESP32 -CROSS_COMPILE = xtensa-esp32s2-elf- diff --git a/hw/bsp/esp32s2_saola_1/esp32s2_saola_1.c b/hw/bsp/esp32s2_saola_1/esp32s2_saola_1.c deleted file mode 100644 index 5795c4b6..00000000 --- a/hw/bsp/esp32s2_saola_1/esp32s2_saola_1.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * The MIT License (MIT) - * - * Copyright (c) 2020, Ha Thach (tinyusb.org) - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * This file is part of the TinyUSB stack. - */ - -#include "../board.h" -#include "esp_rom_gpio.h" -#include "hal/gpio_ll.h" -#include "hal/usb_hal.h" -#include "soc/usb_periph.h" - -#include "driver/periph_ctrl.h" -#include "driver/rmt.h" -#include "led_strip/include/led_strip.h" - -//--------------------------------------------------------------------+ -// MACRO TYPEDEF CONSTANT ENUM DECLARATION -//--------------------------------------------------------------------+ - -// 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 17 // v1.1 -#define LED_PIN 18 // v1.2 and later -#define BUTTON_PIN 0 -#define BUTTON_STATE_ACTIVE 0 - -static void configure_pins(usb_hal_context_t *usb); -static led_strip_t *strip; - -// Initialize on-board peripherals : led, button, uart and USB -void board_init(void) -{ - // 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); - gpio_set_direction(BUTTON_PIN, GPIO_MODE_INPUT); - gpio_set_pull_mode(BUTTON_PIN, BUTTON_STATE_ACTIVE ? GPIO_PULLDOWN_ONLY : GPIO_PULLUP_ONLY); - - // USB Controller Hal init - periph_module_reset(PERIPH_USB_MODULE); - periph_module_enable(PERIPH_USB_MODULE); - - usb_hal_context_t hal = { - .use_external_phy = false // use built-in PHY - }; - usb_hal_init(&hal); - configure_pins(&hal); -} - -static void configure_pins(usb_hal_context_t *usb) -{ - /* usb_periph_iopins currently configures USB_OTG as USB Device. - * Introduce additional parameters in usb_hal_context_t when adding support - * for USB Host. - */ - for (const usb_iopin_dsc_t *iopin = usb_periph_iopins; iopin->pin != -1; ++iopin) { - if ((usb->use_external_phy) || (iopin->ext_phy_only == 0)) { - esp_rom_gpio_pad_select_gpio(iopin->pin); - if (iopin->is_output) { - esp_rom_gpio_connect_out_signal(iopin->pin, iopin->func, false, false); - } else { - esp_rom_gpio_connect_in_signal(iopin->pin, iopin->func, false); - if ((iopin->pin != GPIO_FUNC_IN_LOW) && (iopin->pin != GPIO_FUNC_IN_HIGH)) { - gpio_ll_input_enable(&GPIO, iopin->pin); - } - } - esp_rom_gpio_pad_unhold(iopin->pin); - } - } - if (!usb->use_external_phy) { - gpio_set_drive_capability(USBPHY_DM_NUM, GPIO_DRIVE_CAP_3); - gpio_set_drive_capability(USBPHY_DP_NUM, GPIO_DRIVE_CAP_3); - } -} - -// Turn LED on or off -void board_led_write(bool state) -{ - strip->set_pixel(strip, 0, (state ? 0x88 : 0x00), 0x00, 0x00); - strip->refresh(strip, 100); -} - -// Get the current state of button -// a '1' means active (pressed), a '0' means inactive. -uint32_t board_button_read(void) -{ - return gpio_get_level(BUTTON_PIN) == BUTTON_STATE_ACTIVE; -} - -// Get characters from UART -int board_uart_read(uint8_t* buf, int len) -{ - (void) buf; (void) len; - return 0; -} - -// Send characters to UART -int board_uart_write(void const * buf, int len) -{ - (void) buf; (void) len; - return 0; -} - diff --git a/hw/bsp/esp32s2_saola_1/led_strip/include/led_strip.h b/hw/bsp/esp32s2_saola_1/led_strip/include/led_strip.h deleted file mode 100644 index a9dffc32..00000000 --- a/hw/bsp/esp32s2_saola_1/led_strip/include/led_strip.h +++ /dev/null @@ -1,126 +0,0 @@ -// 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); - -#ifdef __cplusplus -} -#endif diff --git a/hw/bsp/esp32s2_saola_1/led_strip/src/led_strip_rmt_ws2812.c b/hw/bsp/esp32s2_saola_1/led_strip/src/led_strip_rmt_ws2812.c deleted file mode 100644 index 025d3c59..00000000 --- a/hw/bsp/esp32s2_saola_1/led_strip/src/led_strip_rmt_ws2812.c +++ /dev/null @@ -1,171 +0,0 @@ -// 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 -#include -#include -#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; -}