f8bd6778c8
CONFIG_USB_OTG_SUPPORTED is automatically set by the ESP-IDF when the chip supports USB-OTG, which is the case for the ESP32-S2 and ESP32-S3. When trying to use the JTAG console with these chips, it would not work because our USB implementation will take over control over the USB port, breaking the JTAG console in the process. Thus, when the board is configured to use the JTAG console, we should not enable our USB console support. Additionally, this change also frees up UART0 when an USB-based console is configured, since there's no reason to prevent (re)configuration of UART0 for other uses in that case. Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>
125 lines
4.3 KiB
C
125 lines
4.3 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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* Development of the code in this file was sponsored by Microbric Pty Ltd
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 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 "uart.h"
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#if MICROPY_HW_ENABLE_UART_REPL
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#include <stdio.h>
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#include "hal/uart_hal.h"
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// Backwards compatibility for when MICROPY_HW_UART_REPL was a ESP-IDF UART
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// driver enum. Only UART_NUM_0 was supported with that version of the driver.
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#define UART_NUM_0 0
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STATIC void uart_irq_handler(void *arg);
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// Declaring the HAL structure on the stack saves a tiny amount of static RAM
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#define REPL_HAL_DEFN() { .dev = UART_LL_GET_HW(MICROPY_HW_UART_REPL) }
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// RXFIFO Full interrupt threshold. Set the same as the ESP-IDF UART driver
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#define RXFIFO_FULL_THR (SOC_UART_FIFO_LEN - 8)
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// RXFIFO RX timeout threshold. This is in bit periods, so 10==one byte. Same as ESP-IDF UART driver.
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#define RXFIFO_RX_TIMEOUT (10)
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void uart_stdout_init(void) {
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uart_hal_context_t repl_hal = REPL_HAL_DEFN();
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uint32_t sclk_freq;
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#if UART_SCLK_DEFAULT == SOC_MOD_CLK_APB
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sclk_freq = APB_CLK_FREQ; // Assumes no frequency scaling
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#else
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// ESP32-H2 and ESP32-C2, I think
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#error "This SoC uses a different default UART SCLK source, code needs updating."
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#endif
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uart_hal_init(&repl_hal, MICROPY_HW_UART_REPL); // Sets defaults: 8n1, no flow control
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uart_hal_set_baudrate(&repl_hal, MICROPY_HW_UART_REPL_BAUD, sclk_freq);
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uart_hal_rxfifo_rst(&repl_hal);
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uart_hal_txfifo_rst(&repl_hal);
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ESP_ERROR_CHECK(
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esp_intr_alloc(uart_periph_signal[MICROPY_HW_UART_REPL].irq,
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ESP_INTR_FLAG_LOWMED | ESP_INTR_FLAG_IRAM,
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uart_irq_handler,
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NULL,
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NULL)
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);
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// Enable RX interrupts
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uart_hal_set_rxfifo_full_thr(&repl_hal, RXFIFO_FULL_THR);
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uart_hal_set_rx_timeout(&repl_hal, RXFIFO_RX_TIMEOUT);
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uart_hal_ena_intr_mask(&repl_hal, UART_INTR_RXFIFO_FULL | UART_INTR_RXFIFO_TOUT);
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}
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int uart_stdout_tx_strn(const char *str, size_t len) {
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uart_hal_context_t repl_hal = REPL_HAL_DEFN();
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size_t remaining = len;
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uint32_t written = 0;
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// TODO add a timeout
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for (;;) {
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uart_hal_write_txfifo(&repl_hal, (const void *)str, remaining, &written);
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if (written >= remaining) {
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break;
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}
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remaining -= written;
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str += written;
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ulTaskNotifyTake(pdFALSE, 1);
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}
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return len;
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}
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// all code executed in ISR must be in IRAM, and any const data must be in DRAM
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STATIC void IRAM_ATTR uart_irq_handler(void *arg) {
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uint8_t rbuf[SOC_UART_FIFO_LEN];
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int len;
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uart_hal_context_t repl_hal = REPL_HAL_DEFN();
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uart_hal_clr_intsts_mask(&repl_hal, UART_INTR_RXFIFO_FULL | UART_INTR_RXFIFO_TOUT | UART_INTR_FRAM_ERR);
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len = uart_hal_get_rxfifo_len(&repl_hal);
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uart_hal_read_rxfifo(&repl_hal, rbuf, &len);
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for (int i = 0; i < len; i++) {
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if (rbuf[i] == mp_interrupt_char) {
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mp_sched_keyboard_interrupt();
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} else {
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// this is an inline function so will be in IRAM
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ringbuf_put(&stdin_ringbuf, rbuf[i]);
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}
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}
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}
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#endif // MICROPY_HW_ENABLE_UART_REPL
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