esp8266: Introduce `multiterminal` module for managing a secondary

serial connection such as WebREPL.

Fixes #181.

2 files changed, 84 insertions, 0 deletions

diff --git a/shared-module/multiterminal/__init__.c b/shared-module/multiterminal/__init__.c
new file mode 100644
index 000000000..5f6e298f0
--- /dev/null
+++ b/shared-module/multiterminal/__init__.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Paul Sokolovsky
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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 "py/mpstate.h"
+
+#include "shared-bindings/multiterminal/__init__.h"
+
+mp_obj_t shared_module_multiterminal_get_secondary_terminal() {
+    if (MP_STATE_PORT(term_obj) == MP_OBJ_NULL) {
+        return mp_const_none;
+    } else {
+        return MP_STATE_PORT(term_obj);
+    }
+}
+
+void shared_module_multiterminal_set_secondary_terminal(mp_obj_t secondary_terminal) {
+    MP_STATE_PORT(term_obj) = secondary_terminal;
+    if (MP_STATE_PORT(dupterm_arr_obj) == MP_OBJ_NULL) {
+        MP_STATE_PORT(dupterm_arr_obj) = mp_obj_new_bytearray(1, "");
+    }
+}
+
+void shared_module_multiterminal_clear_secondary_terminal() {
+    MP_STATE_PORT(term_obj) = MP_OBJ_NULL;
+    MP_STATE_PORT(dupterm_arr_obj) = MP_OBJ_NULL;
+}
diff --git a/shared-module/multiterminal/__init__.h b/shared-module/multiterminal/__init__.h
new file mode 100644
index 000000000..30044da06
--- /dev/null
+++ b/shared-module/multiterminal/__init__.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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.
+ */
+
+#ifndef SHARED_MODULE_MULTITERMINAL___INIT___H
+#define SHARED_MODULE_MULTITERMINAL___INIT___H
+
+mp_obj_t shared_module_multiterminal_get_secondary_terminal();
+void shared_module_multiterminal_set_secondary_terminal(mp_obj_t secondary_terminal);
+void shared_module_multiterminal_clear_secondary_terminal();
+
+#endif  // SHARED_MODULE_MULTITERMINAL___INIT___H