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5ae622ef7b
Enables support for the ESP standard DTR/RTS based reboot to bootloader. Switches from OTG to Serial/Jtag mode to workaround issue discussed in: https://github.com/espressif/arduino-esp32/issues/6762 Signed-off-by: Andrew Leech <andrew@alelec.net>
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "usb.h"
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#if MICROPY_HW_USB_CDC
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#include "esp_rom_gpio.h"
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#include "esp_mac.h"
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#include "esp_private/usb_phy.h"
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#include "shared/tinyusb/mp_usbd.h"
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static usb_phy_handle_t phy_hdl;
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void usb_init(void) {
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// ref: https://github.com/espressif/esp-usb/blob/4b6a798d0bed444fff48147c8dcdbbd038e92892/device/esp_tinyusb/tinyusb.c
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// Configure USB PHY
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usb_phy_config_t phy_conf = {
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.controller = USB_PHY_CTRL_OTG,
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.otg_mode = USB_OTG_MODE_DEVICE,
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};
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// Internal USB PHY
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phy_conf.target = USB_PHY_TARGET_INT;
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// Init ESP USB Phy
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usb_new_phy(&phy_conf, &phy_hdl);
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// Init MicroPython / TinyUSB
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mp_usbd_init();
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}
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#if CONFIG_IDF_TARGET_ESP32S3
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void usb_usj_mode(void) {
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// Switch the USB PHY back to Serial/Jtag mode, disabling OTG support
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// This should be run before jumping to bootloader.
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usb_del_phy(phy_hdl);
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usb_phy_config_t phy_conf = {
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.controller = USB_PHY_CTRL_SERIAL_JTAG,
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};
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usb_new_phy(&phy_conf, &phy_hdl);
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}
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#endif
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void mp_usbd_port_get_serial_number(char *serial_buf) {
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// use factory default MAC as serial ID
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uint8_t mac[8];
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esp_efuse_mac_get_default(mac);
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MP_STATIC_ASSERT(sizeof(mac) * 2 <= MICROPY_HW_USB_DESC_STR_MAX);
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mp_usbd_hex_str(serial_buf, mac, sizeof(mac));
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}
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#endif // MICROPY_HW_USB_CDC
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