208 lines
5.7 KiB
C
208 lines
5.7 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) 2022 Scott Shawcroft for Adafruit Industries
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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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// This file will only be used when CIRCUITPY_USB is 0. See
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// supervisor/supervisor.mk for the rule that applies.
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#include <stdarg.h>
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#include <string.h>
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#include "py/mpconfig.h"
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#include "supervisor/shared/cpu.h"
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#include "supervisor/shared/display.h"
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#include "shared-bindings/terminalio/Terminal.h"
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#include "supervisor/serial.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#if CIRCUITPY_SERIAL_BLE
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#include "supervisor/shared/bluetooth/serial.h"
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#endif
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#if defined(CIRCUITPY_DEBUG_UART_TX) || defined(CIRCUITPY_DEBUG_UART_RX)
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#include "py/mpprint.h"
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#include "shared-bindings/busio/UART.h"
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busio_uart_obj_t debug_uart;
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byte buf_array[64];
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#endif
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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#include "supervisor/usb_serial_jtag.h"
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#endif
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#if defined(CIRCUITPY_DEBUG_UART_TX)
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STATIC void debug_uart_print_strn(void *env, const char *str, size_t len) {
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(void)env;
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int uart_errcode;
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common_hal_busio_uart_write(&debug_uart, (const uint8_t *)str, len, &uart_errcode);
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}
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const mp_print_t debug_uart_print = {NULL, debug_uart_print_strn};
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#endif
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int debug_uart_printf(const char *fmt, ...) {
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#if defined(CIRCUITPY_DEBUG_UART_TX)
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// Skip prints that occur before debug serial is started. It's better than
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// crashing.
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if (common_hal_busio_uart_deinited(&debug_uart)) {
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return 0;
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}
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va_list ap;
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va_start(ap, fmt);
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int ret = mp_vprintf(&debug_uart_print, fmt, ap);
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va_end(ap);
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return ret;
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#else
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return 0;
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#endif
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}
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void serial_early_init(void) {
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#if defined(CIRCUITPY_DEBUG_UART_TX) || defined(CIRCUITPY_DEBUG_UART_RX)
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debug_uart.base.type = &busio_uart_type;
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#if defined(CIRCUITPY_DEBUG_UART_RX)
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const mcu_pin_obj_t *rx = MP_OBJ_TO_PTR(CIRCUITPY_DEBUG_UART_RX);
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#else
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const mcu_pin_obj_t *rx = NULL;
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#endif
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#if defined(CIRCUITPY_DEBUG_UART_TX)
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const mcu_pin_obj_t *tx = MP_OBJ_TO_PTR(CIRCUITPY_DEBUG_UART_TX);
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#else
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const mcu_pin_obj_t *tx = NULL;
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#endif
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common_hal_busio_uart_construct(&debug_uart, tx, rx, NULL, NULL, NULL,
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false, 115200, 8, BUSIO_UART_PARITY_NONE, 1, 1.0f, 64,
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buf_array, true);
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common_hal_busio_uart_never_reset(&debug_uart);
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// Do an initial print so that we can confirm the serial output is working.
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debug_uart_printf("Serial debug setup\r\n");
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#endif
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}
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void serial_init(void) {
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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usb_serial_jtag_init();
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#endif
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}
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bool serial_connected(void) {
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#if defined(CIRCUITPY_DEBUG_UART_TX) && defined(CIRCUITPY_DEBUG_UART_RX)
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return true;
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#endif
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#if CIRCUITPY_SERIAL_BLE
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if (ble_serial_connected()) {
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return true;
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}
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#endif
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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if (usb_serial_jtag_connected()) {
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return true;
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}
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#endif
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return false;
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}
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char serial_read(void) {
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#if defined(CIRCUITPY_DEBUG_UART_RX)
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if (common_hal_busio_uart_rx_characters_available(&debug_uart)) {
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int uart_errcode;
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char text;
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common_hal_busio_uart_read(&debug_uart, (uint8_t *)&text, 1, &uart_errcode);
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return text;
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}
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#endif
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#if CIRCUITPY_SERIAL_BLE
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if (ble_serial_available() > 0) {
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return ble_serial_read_char();
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}
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#endif
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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if (usb_serial_jtag_bytes_available() > 0) {
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return usb_serial_jtag_read_char();
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}
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#endif
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return -1;
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}
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bool serial_bytes_available(void) {
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#if defined(CIRCUITPY_DEBUG_UART_RX)
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if (common_hal_busio_uart_rx_characters_available(&debug_uart)) {
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return true;
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}
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#endif
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#if CIRCUITPY_SERIAL_BLE
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if (ble_serial_available()) {
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return true;
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}
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#endif
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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if (usb_serial_jtag_bytes_available()) {
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return true;
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}
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#endif
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return false;
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}
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void serial_write_substring(const char *text, uint32_t length) {
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if (length == 0) {
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return;
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}
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#if CIRCUITPY_TERMINALIO
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int errcode;
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common_hal_terminalio_terminal_write(&supervisor_terminal, (const uint8_t *)text, length, &errcode);
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#endif
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#if defined(CIRCUITPY_DEBUG_UART_TX)
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int uart_errcode;
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common_hal_busio_uart_write(&debug_uart, (const uint8_t *)text, length, &uart_errcode);
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#endif
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#if CIRCUITPY_SERIAL_BLE
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ble_serial_write(text, length);
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#endif
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#if CIRCUITPY_ESP_USB_SERIAL_JTAG
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usb_serial_jtag_write(text, length);
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#endif
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}
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void serial_write(const char *text) {
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serial_write_substring(text, strlen(text));
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}
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