1 files changed, 65 insertions, 0 deletions
diff --git a/ports/esp32/modos.c b/ports/esp32/modos.c
new file mode 100644
index 0000000000..287f1d9900
--- /dev/null
+++ b/ports/esp32/modos.c
@@ -0,0 +1,65 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * Development of the code in this file was sponsored by Microbric Pty Ltd
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Josef Gajdusek
+ * Copyright (c) 2016 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 "esp_system.h"
+
+#include "py/runtime.h"
+#include "py/mphal.h"
+#include "extmod/misc.h"
+
+STATIC mp_obj_t mp_os_urandom(mp_obj_t num) {
+    mp_int_t n = mp_obj_get_int(num);
+    vstr_t vstr;
+    vstr_init_len(&vstr, n);
+    uint32_t r = 0;
+    for (int i = 0; i < n; i++) {
+        if ((i & 3) == 0) {
+            r = esp_random(); // returns 32-bit hardware random number
+        }
+        vstr.buf[i] = r;
+        r >>= 8;
+    }
+    return mp_obj_new_bytes_from_vstr(&vstr);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_os_urandom_obj, mp_os_urandom);
+
+#if MICROPY_PY_OS_DUPTERM_NOTIFY
+STATIC mp_obj_t mp_os_dupterm_notify(mp_obj_t obj_in) {
+    (void)obj_in;
+    for (;;) {
+        int c = mp_os_dupterm_rx_chr();
+        if (c < 0) {
+            break;
+        }
+        ringbuf_put(&stdin_ringbuf, c);
+    }
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_os_dupterm_notify_obj, mp_os_dupterm_notify);
+#endif