stmhal: Make pybstdio usable by other ports, and use it.

Now all ports can use pybstdio.c to provide sys.stdin/stdout/stderr, so
long as they implement mp_hal_stdin_* and mp_hal_stdout_* functions.

cc3200/application.mk

@@ -91,7 +91,6 @@ APP_MODS_SRC_C = $(addprefix mods/,\
 	pybextint.c \
 	pybpin.c \
 	pybrtc.c \
-	pybstdio.c \
 	pybsystick.c \
 	pybuart.c \
 	)
@@ -144,6 +143,7 @@ APP_STM_SRC_C = $(addprefix stmhal/,\
 	moduselect.c \
 	printf.c \
 	pyexec.c \
+	pybstdio.c \
 	string0.c \
 	)
 

cc3200/hal/cc3200_hal.c

@@ -30,11 +30,12 @@
  ******************************************************************************/
 #include <stdio.h>
 #include <stdint.h>
+#include <string.h>
 #include "inc/hw_types.h"
 #include "inc/hw_ints.h"
 #include "inc/hw_nvic.h"
 #include "hw_memmap.h"
-#include "mpconfig.h"
+#include "py/mpstate.h"
 #include MICROPY_HAL_H
 #include "rom_map.h"
 #include "interrupt.h"
@@ -43,6 +44,8 @@
 #include "sdhost.h"
 #include "pin.h"
 #include "mpexception.h"
+#include "telnet.h"
+#include "pybuart.h"
 
 #ifdef USE_FREERTOS
 #include "FreeRTOS.h"
@@ -126,6 +129,43 @@ void mp_hal_set_interrupt_char (int c) {
     mpexception_set_interrupt_char (c);
 }
 
+void mp_hal_stdout_tx_str(const char *str) {
+    mp_hal_stdout_tx_strn(str, strlen(str));
+}
+
+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);
+    }
+    // and also to telnet
+    if (telnet_is_active()) {
+        telnet_tx_strn(str, len);
+    }
+}
+
+void mp_hal_stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
+    // send stdout to UART
+    if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
+        uart_tx_strn_cooked(MP_STATE_PORT(pyb_stdio_uart), str, len);
+    }
+    // and also to telnet
+    if (telnet_is_active()) {
+        telnet_tx_strn_cooked(str, len);
+    }
+}
+
+int mp_hal_stdin_rx_chr(void) {
+    for ( ;; ) {
+        if (telnet_rx_any()) {
+            return telnet_rx_char();
+        }
+        else if (MP_STATE_PORT(pyb_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(pyb_stdio_uart))) {
+            return uart_rx_char(MP_STATE_PORT(pyb_stdio_uart));
+        }
+        HAL_Delay(1);
+    }
+}
+
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/

cc3200/hal/cc3200_hal.h

@@ -63,4 +63,9 @@ extern uint32_t HAL_GetTick(void);
 extern void HAL_Delay(uint32_t delay);
 extern void mp_hal_set_interrupt_char (int c);
 
+int mp_hal_stdin_rx_chr(void);
+void mp_hal_stdout_tx_str(const char *str);
+void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len);
+void mp_hal_stdout_tx_strn_cooked(const char *str, mp_uint_t len);
+
 #endif /* CC3200_LAUNCHXL_HAL_CC3200_HAL_H_ */

cc3200/misc/FreeRTOSHooks.c

@@ -35,7 +35,6 @@
 #include "obj.h"
 #include "inc/hw_memmap.h"
 #include "pybuart.h"
-#include "pybstdio.h"
 #include "osi.h"
 
 

cc3200/misc/mperror.c

@@ -37,7 +37,6 @@
 #include "obj.h"
 #include "inc/hw_memmap.h"
 #include "pybuart.h"
-#include "pybstdio.h"
 #include "utils.h"
 
 
@@ -45,9 +44,9 @@ void NORETURN __fatal_error(const char *msg) {
     if (msg != NULL) {
         // wait for 20ms
         UtilsDelay(UTILS_DELAY_US_TO_COUNT(20000));
-        stdout_tx_str("\r\nFATAL ERROR:");
-        stdout_tx_str(msg);
-        stdout_tx_str("\r\n");
+        mp_hal_stdout_tx_str("\r\nFATAL ERROR:");
+        mp_hal_stdout_tx_str(msg);
+        mp_hal_stdout_tx_str("\r\n");
     }
     for ( ;; ) {__WFI();}
 }

cc3200/mods/modpyb.c

@@ -48,7 +48,6 @@
 #include "pyexec.h"
 #include "pybuart.h"
 #include "pybpin.h"
-#include "pybstdio.h"
 #include "pybrtc.h"
 #include "pybsystick.h"
 #include "simplelink.h"

cc3200/mods/modwlan.c

@@ -42,7 +42,6 @@
 #include "modwlan.h"
 #include "pybioctl.h"
 #include "pybuart.h"
-#include "pybstdio.h"
 #include "osi.h"
 #include "debug.h"
 #include "serverstask.h"

cc3200/mods/pybstdio.c

-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2013, 2014 Damien P. George
- * Copyright (c) 2015 Daniel Campora
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <errno.h>
-
-#include "py/mpstate.h"
-#include "mpconfig.h"
-#include "misc.h"
-#include "qstr.h"
-#include "misc.h"
-#include "obj.h"
-#include "stream.h"
-#include MICROPY_HAL_H
-#include "pybuart.h"
-#include "telnet.h"
-#include "pybstdio.h"
-
-// TODO make stdin, stdout and stderr writable objects so they can
-// be changed by Python code.  This requires some changes, as these
-// objects are in a read-only module (py/modsys.c).
-
-void stdout_tx_str(const char *str) {
-    stdout_tx_strn(str, strlen(str));
-}
-
-void 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);
-    }
-    // and also to telnet
-    if (telnet_is_active()) {
-        telnet_tx_strn(str, len);
-    }
-}
-
-void stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
-    // send stdout to UART
-    if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
-        uart_tx_strn_cooked(MP_STATE_PORT(pyb_stdio_uart), str, len);
-    }
-    // and also to telnet
-    if (telnet_is_active()) {
-        telnet_tx_strn_cooked(str, len);
-    }
-}
-
-int stdin_rx_chr(void) {
-    for ( ;; ) {
-        if (telnet_rx_any()) {
-            return telnet_rx_char();
-        }
-        else if (MP_STATE_PORT(pyb_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(pyb_stdio_uart))) {
-            return uart_rx_char(MP_STATE_PORT(pyb_stdio_uart));
-        }
-        HAL_Delay(1);
-    }
-}
-
-/******************************************************************************/
-// Micro Python bindings
-
-#define STDIO_FD_IN  (0)
-#define STDIO_FD_OUT (1)
-#define STDIO_FD_ERR (2)
-
-typedef struct _pyb_stdio_obj_t {
-    mp_obj_base_t base;
-    int fd;
-} pyb_stdio_obj_t;
-
-void stdio_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
-    pyb_stdio_obj_t *self = self_in;
-    print(env, "<io.FileIO %d>", self->fd);
-}
-
-STATIC mp_uint_t stdio_read(mp_obj_t self_in, void *buf, mp_uint_t size, int *errcode) {
-    pyb_stdio_obj_t *self = self_in;
-    if (self->fd == STDIO_FD_IN) {
-        for (uint i = 0; i < size; i++) {
-            int c = stdin_rx_chr();
-            if (c == '\r') {
-                c = '\n';
-            }
-            ((byte*)buf)[i] = c;
-        }
-        return size;
-    } else {
-        *errcode = EPERM;
-        return MP_STREAM_ERROR;
-    }
-}
-
-STATIC mp_uint_t stdio_write(mp_obj_t self_in, const void *buf, mp_uint_t size, int *errcode) {
-    pyb_stdio_obj_t *self = self_in;
-    if (self->fd == STDIO_FD_OUT || self->fd == STDIO_FD_ERR) {
-        stdout_tx_strn_cooked(buf, size);
-        return size;
-    } else {
-        *errcode = EPERM;
-        return MP_STREAM_ERROR;
-    }
-}
-
-mp_obj_t stdio_obj___exit__(mp_uint_t n_args, const mp_obj_t *args) {
-    return mp_const_none;
-}
-static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stdio_obj___exit___obj, 4, 4, stdio_obj___exit__);
-
-// TODO gc hook to close the file if not already closed
-
-STATIC const mp_map_elem_t stdio_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&mp_stream_read_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_readall), (mp_obj_t)&mp_stream_readall_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_readline), (mp_obj_t)&mp_stream_unbuffered_readline_obj},
-    { MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&mp_stream_write_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___del__), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___enter__), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___exit__), (mp_obj_t)&stdio_obj___exit___obj },
-};
-
-STATIC MP_DEFINE_CONST_DICT(stdio_locals_dict, stdio_locals_dict_table);
-
-STATIC const mp_stream_p_t stdio_obj_stream_p = {
-    .read = stdio_read,
-    .write = stdio_write,
-    .is_text = true,
-};
-
-STATIC const mp_obj_type_t stdio_obj_type = {
-    { &mp_type_type },
-    .name = MP_QSTR_FileIO,
-    // TODO .make_new?
-    .print = stdio_obj_print,
-    .getiter = mp_identity,
-    .iternext = mp_stream_unbuffered_iter,
-    .stream_p = &stdio_obj_stream_p,
-    .locals_dict = (mp_obj_t)&stdio_locals_dict,
-};
-
-/// \moduleref sys
-/// \constant stdin - standard input (connected to UART0, or to telnet, configurable)
-/// \constant stdout - standard output (connected to UART0, and optionally to telnet)
-/// \constant stderr - standard error (connected to UART0, and optionally to telnet)
-const pyb_stdio_obj_t mp_sys_stdin_obj = {{&stdio_obj_type}, .fd = STDIO_FD_IN};
-const pyb_stdio_obj_t mp_sys_stdout_obj = {{&stdio_obj_type}, .fd = STDIO_FD_OUT};
-const pyb_stdio_obj_t mp_sys_stderr_obj = {{&stdio_obj_type}, .fd = STDIO_FD_ERR};

cc3200/mods/pybstdio.h

-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2013, 2014 Damien P. George
- * Copyright (c) 2015 Daniel Campora
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-void stdout_tx_str(const char *str);
-void stdout_tx_strn(const char *str, mp_uint_t len);
-void stdout_tx_strn_cooked(const char *str, mp_uint_t len);
-int stdin_rx_chr(void);

cc3200/mods/pybuart.c

@@ -53,7 +53,6 @@
 #include "pin.h"
 #include "pybuart.h"
 #include "pybioctl.h"
-#include "pybstdio.h"
 #include "mpexception.h"
 #include "osi.h"
 

cc3200/mptask.c

@@ -44,7 +44,6 @@
 #include "pybuart.h"
 #include "pybpin.h"
 #include "pybrtc.h"
-#include "pybstdio.h"
 #include "pyexec.h"
 #include "gccollect.h"
 #include "gchelper.h"

cc3200/telnet/telnet.c

@@ -39,7 +39,6 @@
 #include "debug.h"
 #include "mpexception.h"
 #include "serverstask.h"
-#include "pybstdio.h"
 #include "genhdr/py-version.h"
 
 

esp8266/Makefile

@@ -45,7 +45,6 @@ SRC_C = \
 	main.c \
 	esp_mphal.c \
 	gccollect.c \
-	pybstdio.c \
 	uart.c \
 	modpyb.c \
 	modesp.c \
@@ -54,6 +53,7 @@ STM_SRC_C = $(addprefix stmhal/,\
 	printf.c \
 	string0.c \
 	pyexec.c \
+	pybstdio.c \
 	)
 
 LIB_SRC_C = $(addprefix lib/,\

esp8266/esp_mphal.c

@@ -49,23 +49,30 @@ void mp_hal_udelay(uint32_t us) {
     ets_delay_us(us);
 }
 
-int mp_hal_uart0_rx_chr(void) {
-    return uart0_rx();
+int mp_hal_stdin_rx_chr(void) {
+    for (;;) {
+        int c = uart0_rx();
+        if (c != -1) {
+            return c;
+        }
+        mp_hal_udelay(1);
+        mp_hal_feed_watchdog();
+    }
 }
 
-void mp_hal_uart0_write_str(const char *str) {
+void mp_hal_stdout_tx_str(const char *str) {
     while (*str) {
         uart_tx_one_char(UART0, *str++);
     }
 }
 
-void mp_hal_uart0_write_strn(const char *str, uint32_t len) {
+void mp_hal_stdout_tx_strn(const char *str, uint32_t len) {
     while (len--) {
         uart_tx_one_char(UART0, *str++);
     }
 }
 
-void mp_hal_uart0_write_strn_cooked(const char *str, uint32_t len) {
+void mp_hal_stdout_tx_strn_cooked(const char *str, uint32_t len) {
     while (len--) {
         if (*str == '\n') {
             uart_tx_one_char(UART0, '\r');

esp8266/esp_mphal.h

@@ -30,10 +30,10 @@
 void mp_hal_init(void);
 void mp_hal_feed_watchdog(void);
 void mp_hal_udelay(uint32_t);
-int mp_hal_uart0_rx_chr(void);
-void mp_hal_uart0_write_str(const char *str);
-void mp_hal_uart0_write_strn(const char *str, uint32_t len);
-void mp_hal_uart0_write_strn_cooked(const char *str, uint32_t len);
+int mp_hal_stdin_rx_chr(void);
+void mp_hal_stdout_tx_str(const char *str);
+void mp_hal_stdout_tx_strn(const char *str, uint32_t len);
+void mp_hal_stdout_tx_strn_cooked(const char *str, uint32_t len);
 
 uint32_t HAL_GetTick(void);
 void HAL_Delay(uint32_t Delay);
@@ -43,4 +43,5 @@ uint32_t mp_hal_get_cpu_freq(void);
 #define UART_TASK_ID 0
 void uart_task_init();
 
+
 #endif // _INCLUDED_MPHAL_H_

esp8266/modpyb.c

@@ -31,7 +31,6 @@
 #include "py/gc.h"
 #include "gccollect.h"
 #include "pyexec.h"
-#include "pybstdio.h"
 #include MICROPY_HAL_H
 #include "user_interface.h"
 

esp8266/pybstdio.c

-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2014 Damien P. George
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include "py/obj.h"
-#include "py/stream.h"
-#include "pybstdio.h"
-#include MICROPY_HAL_H
-
-void stdout_tx_str(const char *str) {
-    stdout_tx_strn(str, strlen(str));
-}
-
-void stdout_tx_strn(const char *str, mp_uint_t len) {
-    mp_hal_uart0_write_strn(str, len);
-}
-
-void stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
-    mp_hal_uart0_write_strn_cooked(str, len);
-}
-
-int stdin_rx_chr(void) {
-    for (;;) {
-        int c = mp_hal_uart0_rx_chr();
-        if (c != -1) {
-            return c;
-        }
-        mp_hal_udelay(1);
-        mp_hal_feed_watchdog();
-    }
-}
-
-/******************************************************************************/
-// Micro Python bindings
-
-#define STDIO_FD_IN  (0)
-#define STDIO_FD_OUT (1)
-#define STDIO_FD_ERR (2)
-
-typedef struct _pyb_stdio_obj_t {
-    mp_obj_base_t base;
-    int fd;
-} pyb_stdio_obj_t;
-
-void stdio_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
-    pyb_stdio_obj_t *self = self_in;
-    print(env, "<io.FileIO %d>", self->fd);
-}
-
-STATIC mp_uint_t stdio_read(mp_obj_t self_in, void *buf, mp_uint_t size, int *errcode) {
-    pyb_stdio_obj_t *self = self_in;
-    if (self->fd == STDIO_FD_IN) {
-        for (uint i = 0; i < size; i++) {
-            int c = stdin_rx_chr();
-            if (c == '\r') {
-                c = '\n';
-            }
-            ((byte*)buf)[i] = c;
-        }
-        return size;
-    } else {
-        *errcode = EPERM;
-        return MP_STREAM_ERROR;
-    }
-}
-
-STATIC mp_uint_t stdio_write(mp_obj_t self_in, const void *buf, mp_uint_t size, int *errcode) {
-    pyb_stdio_obj_t *self = self_in;
-    if (self->fd == STDIO_FD_OUT || self->fd == STDIO_FD_ERR) {
-        stdout_tx_strn_cooked(buf, size);
-        return size;
-    } else {
-        *errcode = EPERM;
-        return MP_STREAM_ERROR;
-    }
-}
-
-STATIC mp_obj_t stdio_obj___exit__(mp_uint_t n_args, const mp_obj_t *args) {
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stdio_obj___exit___obj, 4, 4, stdio_obj___exit__);
-
-STATIC const mp_map_elem_t stdio_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&mp_stream_read_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_readall), (mp_obj_t)&mp_stream_readall_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_readline), (mp_obj_t)&mp_stream_unbuffered_readline_obj},
-    { MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&mp_stream_write_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___del__), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___enter__), (mp_obj_t)&mp_identity_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR___exit__), (mp_obj_t)&stdio_obj___exit___obj },
-};
-
-STATIC MP_DEFINE_CONST_DICT(stdio_locals_dict, stdio_locals_dict_table);
-
-STATIC const mp_stream_p_t stdio_obj_stream_p = {
-    .read = stdio_read,
-    .write = stdio_write,
-    .is_text = true,
-};
-
-STATIC const mp_obj_type_t stdio_obj_type = {
-    { &mp_type_type },
-    .name = MP_QSTR_FileIO,
-    .print = stdio_obj_print,
-    .getiter = mp_identity,
-    .iternext = mp_stream_unbuffered_iter,
-    .stream_p = &stdio_obj_stream_p,
-    .locals_dict = (mp_obj_t)&stdio_locals_dict,
-};
-
-const pyb_stdio_obj_t mp_sys_stdin_obj = {{&stdio_obj_type}, .fd = STDIO_FD_IN};
-const pyb_stdio_obj_t mp_sys_stdout_obj = {{&stdio_obj_type}, .fd = STDIO_FD_OUT};
-const pyb_stdio_obj_t mp_sys_stderr_obj = {{&stdio_obj_type}, .fd = STDIO_FD_ERR};

esp8266/pybstdio.h

-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2014 Damien P. George
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN