mirror of
https://github.com/espressif/esp-idf.git
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92 lines
3.0 KiB
C
92 lines
3.0 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* This file contains console-related functions which should be located in iram_loader_seg,
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* to be available in the "loader" phase, when iram_seg may be overwritten.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include "sdkconfig.h"
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#include "bootloader_console.h"
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#include "esp_rom_uart.h"
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#include "esp_rom_sys.h"
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#if CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/usb/chip_usb_dw_wrapper.h"
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#include "esp32s2/rom/usb/usb_dc.h"
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#include "esp32s2/rom/usb/cdc_acm.h"
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#include "esp32s2/rom/usb/usb_persist.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rom/usb/chip_usb_dw_wrapper.h"
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#include "esp32s3/rom/usb/usb_dc.h"
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#include "esp32s3/rom/usb/cdc_acm.h"
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#include "esp32s3/rom/usb/usb_persist.h"
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#endif
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#ifdef CONFIG_ESP_CONSOLE_USB_CDC
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/* The following functions replace esp_rom_uart_putc, esp_rom_uart_tx_one_char,
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* and uart_tx_one_char_uart ROM functions. The main difference is that
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* uart_tx_one_char_uart calls cdc_acm_fifo_fill for each byte passed to it,
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* which results in very slow console output. The version here uses a TX buffer.
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* It also doesn't handle UART output, only works with USB.
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*/
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static char cdc_txbuf[ACM_BYTES_PER_TX];
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static size_t cdc_txpos;
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static void bootloader_console_flush_usb(void)
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{
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cdc_acm_fifo_fill(uart_acm_dev, (const uint8_t *) cdc_txbuf, cdc_txpos);
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/* return value ignored — if bootloader fails to log something, proceed anyway */
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cdc_txpos = 0;
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}
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static void bootloader_console_write_one_char_usb(char ch)
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{
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cdc_txbuf[cdc_txpos++] = ch;
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if (ch == '\n' || cdc_txpos == sizeof(cdc_txbuf)) {
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bootloader_console_flush_usb();
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}
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}
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void bootloader_console_write_char_usb(char c)
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{
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if (c == '\n') {
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bootloader_console_write_one_char_usb('\r');
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bootloader_console_write_one_char_usb('\n');
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} else if (c == '\r') {
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} else {
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bootloader_console_write_one_char_usb(c);
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}
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}
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#endif //CONFIG_ESP_CONSOLE_USB_CDC
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void bootloader_console_deinit(void)
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{
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#ifdef CONFIG_ESP_CONSOLE_UART
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/* Ensure any buffered log output is displayed */
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esp_rom_uart_flush_tx(CONFIG_ESP_CONSOLE_UART_NUM);
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#endif // CONFIG_ESP_CONSOLE_UART
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#ifdef CONFIG_ESP_CONSOLE_USB_CDC
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bootloader_console_flush_usb();
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usb_dc_prepare_persist();
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chip_usb_set_persist_flags(USBDC_PERSIST_ENA);
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esp_rom_delay_us(100);
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for (int i = 0; i < 10; i++) {
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usb_dc_check_poll_for_interrupts();
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}
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esp_rom_install_channel_putc(1, NULL);
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#endif
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}
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