mirror of
https://github.com/espressif/esp-idf.git
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127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_gdbstub.h"
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#include "esp_gdbstub_common.h"
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#include "sdkconfig.h"
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#if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
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#include "hal/usb_serial_jtag_ll.h"
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#else
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#include "hal/uart_ll.h"
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#endif
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#if CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
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int esp_gdbstub_getchar(void)
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{
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uint8_t c;
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// retry the read until we succeed
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while (usb_serial_jtag_ll_read_rxfifo(&c, 1) == 0) {
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;
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}
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return c;
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}
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void esp_gdbstub_putchar(int c)
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{
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uint8_t cc = c;
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// retry the write until we succeed
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while (usb_serial_jtag_ll_write_txfifo(&cc, 1) < 1) {
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;
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}
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}
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void esp_gdbstub_flush(void)
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{
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usb_serial_jtag_ll_txfifo_flush();
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}
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#ifdef CONFIG_ESP_SYSTEM_GDBSTUB_RUNTIME
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int esp_gdbstub_getfifo(void)
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{
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return 0; // TODO: IDF-7264
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}
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#endif // CONFIG_ESP_SYSTEM_GDBSTUB_RUNTIME
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#else // CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
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static uart_dev_t *gdb_uart = NULL;
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static inline void esp_gdbstub_uart_init(void)
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{
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if (gdb_uart != NULL) {
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return;
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}
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switch (CONFIG_ESP_CONSOLE_UART_NUM) {
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case 0:
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gdb_uart = &UART0;
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break;
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#if SOC_UART_HP_NUM > 1
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case 1:
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gdb_uart = &UART1;
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break;
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#endif
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#if SOC_UART_HP_NUM > 2
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case 2:
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gdb_uart = &UART2;
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break;
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#endif
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default:
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gdb_uart = &UART0;
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break;
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}
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}
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int esp_gdbstub_getchar(void)
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{
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esp_gdbstub_uart_init();
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unsigned char data;
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while (uart_ll_get_rxfifo_len(gdb_uart) == 0) {
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;
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}
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uart_ll_read_rxfifo(gdb_uart, &data, 1);
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return data;
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}
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void esp_gdbstub_putchar(int c)
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{
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esp_gdbstub_uart_init();
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while (uart_ll_get_txfifo_len(gdb_uart) <= 126) {
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;
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}
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uart_ll_write_txfifo(gdb_uart, (uint8_t *)&c, 1);
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}
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void esp_gdbstub_flush(void)
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{
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esp_gdbstub_uart_init();
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// wait until some data in transmition
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while (false == uart_ll_is_tx_idle(gdb_uart)) {
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;
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}
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}
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#ifdef CONFIG_ESP_SYSTEM_GDBSTUB_RUNTIME
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int esp_gdbstub_getfifo(void)
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{
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esp_gdbstub_uart_init();
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int doDebug = 0;
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int fifolen = uart_ll_get_rxfifo_len(gdb_uart);
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while (fifolen != 0) {
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unsigned char data;
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uart_ll_read_rxfifo(gdb_uart, &data, 1);
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if (data == 0x3) {
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doDebug = 1; // Check if any of the chars is Ctrl+C. Throw away rest.
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}
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fifolen--;
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}
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uart_ll_clr_intsts_mask(gdb_uart, UART_INTR_RXFIFO_FULL | UART_INTR_RXFIFO_TOUT);
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return doDebug;
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}
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#endif // CONFIG_ESP_SYSTEM_GDBSTUB_RUNTIME
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#endif // CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
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