void mp_hal_stdout_tx_strn(const char *str, size_t len) {
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn(str, len);
}
}
void stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
// send stdout to UART and USB CDC VCP
if (pyb_stdio_uart != PYB_UART_NONE) {
uart_tx_strn_cooked(pyb_stdio_uart, str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn_cooked(str, len);
}
}
void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) {
// send stdout to UART and USB CDC VCP
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn_cooked(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn_cooked(str, len);
}
}
void stdout_tx_strn(const char *str, mp_uint_t len) {
if (pyb_stdio_uart != PYB_UART_NONE) {
uart_tx_strn(pyb_stdio_uart, str, len);
}
#if 0 && defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
lcd_print_strn(str, len);
#endif
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn(str, len);
}
}
void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
#if 0 && defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
lcd_print_strn(str, len);
#endif
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn(str, len);
}
}
int pyexec_friendly_repl(void) {
vstr_t line;
vstr_init(&line, 32);
#if defined(USE_HOST_MODE) && MICROPY_HW_HAS_LCD
// in host mode, we enable the LCD for the repl
mp_obj_t lcd_o = mp_call_function_0(mp_load_name(qstr_from_str("LCD")));
mp_call_function_1(mp_load_attr(lcd_o, qstr_from_str("light")), mp_const_true);
#endif
friendly_repl_reset:
mp_hal_stdout_tx_str("MicroPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME "\r\n");
#if MICROPY_PY_BUILTINS_HELP
mp_hal_stdout_tx_str("Type \"help()\" for more information.\r\n");
#endif
// to test ctrl-C
/*
{
uint32_t x[4] = {0x424242, 0xdeaddead, 0x242424, 0xdeadbeef};
for (;;) {
nlr_buf_t nlr;
printf("pyexec_repl: %p\n", x);
mp_hal_set_interrupt_char(CHAR_CTRL_C);
if (nlr_push(&nlr) == 0) {
for (;;) {
}
} else {
printf("break\n");
}
}
}
*/
for (;;) {
input_restart:
#if defined(USE_DEVICE_MODE)
if (usb_vcp_is_enabled()) {
// If the user gets to here and interrupts are disabled then
// they'll never see the prompt, traceback etc. The USB REPL needs
// interrupts to be enabled or no transfers occur. So we try to
// do the user a favor and reenable interrupts.
if (query_irq() == IRQ_STATE_DISABLED) {
enable_irq(IRQ_STATE_ENABLED);
mp_hal_stdout_tx_str("PYB: enabling IRQs\r\n");
}
}
#endif
vstr_reset(&line);
int ret = readline(&line, ">>> ");
mp_parse_input_kind_t parse_input_kind = MP_PARSE_SINGLE_INPUT;
if (ret == CHAR_CTRL_A) {
// change to raw REPL
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
pyexec_mode_kind = PYEXEC_MODE_RAW_REPL;
return 0;
} else if (ret == CHAR_CTRL_B) {
// reset friendly REPL
mp_hal_stdout_tx_str("\r\n");
goto friendly_repl_reset;
} else if (ret == CHAR_CTRL_C) {
// break
mp_hal_stdout_tx_str("\r\n");
continue;
} else if (ret == CHAR_CTRL_D) {
// exit for a soft reset
mp_hal_stdout_tx_str("\r\n");
vstr_clear(&line);
return PYEXEC_FORCED_EXIT;
} else if (ret == CHAR_CTRL_E) {
// paste mode
mp_hal_stdout_tx_str("\r\npaste mode; Ctrl-C to cancel, Ctrl-D to finish\r\n=== ");
vstr_reset(&line);
for (;;) {
char c = mp_hal_stdin_rx_chr();
if (c == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (c == CHAR_CTRL_D) {
// end of input
mp_hal_stdout_tx_str("\r\n");
break;
} else {
// add char to buffer and echo
vstr_add_byte(&line, c);
if (c == '\r') {
mp_hal_stdout_tx_str("\r\n=== ");
} else {
mp_hal_stdout_tx_strn(&c, 1);
}
}
}
parse_input_kind = MP_PARSE_FILE_INPUT;
} else if (vstr_len(&line) == 0) {
continue;
} else {
// got a line with non-zero length, see if it needs continuing
while (mp_repl_continue_with_input(vstr_null_terminated_str(&line))) {
vstr_add_byte(&line, '\n');
ret = readline(&line, "... ");
if (ret == CHAR_CTRL_C) {
// cancel everything
mp_hal_stdout_tx_str("\r\n");
goto input_restart;
} else if (ret == CHAR_CTRL_D) {
// stop entering compound statement
break;
}
}
}
ret = parse_compile_execute(&line, parse_input_kind, EXEC_FLAG_ALLOW_DEBUGGING | EXEC_FLAG_IS_REPL | EXEC_FLAG_SOURCE_IS_VSTR);
if (ret & PYEXEC_FORCED_EXIT) {
return ret;
}
}
}