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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
commit | 39a5c822a2a2e798e2e39ff8a98b7af84253026c (patch) | |
tree | fa157c98d3aea0d4f996e4415aa2a7ad1093ac05 /tinyusb/hw/bsp/esp32s2/boards/esp32s2.c | |
parent | c9e00b83bbdcb05058806d915ec4fff3cf4e596f (diff) | |
download | Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.gz Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.bz2 Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.zip |
add tinyusb
Diffstat (limited to 'tinyusb/hw/bsp/esp32s2/boards/esp32s2.c')
-rwxr-xr-x | tinyusb/hw/bsp/esp32s2/boards/esp32s2.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/esp32s2/boards/esp32s2.c b/tinyusb/hw/bsp/esp32s2/boards/esp32s2.c new file mode 100755 index 00000000..358c0c80 --- /dev/null +++ b/tinyusb/hw/bsp/esp32s2/boards/esp32s2.c @@ -0,0 +1,143 @@ +/* + * 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 "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" + +#ifdef NEOPIXEL_PIN +#include "led_strip.h" +static led_strip_t *strip; +#endif + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ + +static void configure_pins(usb_hal_context_t *usb); + +// Initialize on-board peripherals : led, button, uart and USB +void board_init(void) +{ + +#ifdef NEOPIXEL_PIN + #ifdef NEOPIXEL_POWER_PIN + gpio_reset_pin(NEOPIXEL_POWER_PIN); + gpio_set_direction(NEOPIXEL_POWER_PIN, GPIO_MODE_OUTPUT); + gpio_set_level(NEOPIXEL_POWER_PIN, NEOPIXEL_POWER_STATE); + #endif + + // WS2812 Neopixel driver with RMT peripheral + 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); + 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 +#endif + + // 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) +{ +#ifdef NEOPIXEL_PIN + strip->set_pixel(strip, 0, (state ? 0x88 : 0x00), 0x00, 0x00); + strip->refresh(strip, 100); +#endif +} + +// 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; +} + |