Add terminalio

4 files changed, 184 insertions, 0 deletions

diff --git a/shared-module/terminalio/Terminal.c b/shared-module/terminalio/Terminal.c
new file mode 100644
index 000000000..c47f9f6cf
--- /dev/null
+++ b/shared-module/terminalio/Terminal.c
@@ -0,0 +1,82 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 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 "shared-module/terminalio/Terminal.h"
+
+#include "shared-bindings/displayio/TileGrid.h"
+
+void common_hal_terminalio_terminal_construct(terminalio_terminal_obj_t *self, displayio_tilegrid_t* tilegrid, uint8_t* unicode_characters, uint16_t unicode_characters_len) {
+    self->cursor_x = 0;
+    self->cursor_y = 0;
+    self->tilegrid = tilegrid;
+    self->unicode_characters = unicode_characters;
+    self->unicode_characters_len = unicode_characters_len;
+}
+
+size_t common_hal_terminalio_terminal_write(terminalio_terminal_obj_t *self, const byte *data, size_t len, int *errcode) {
+    const byte* i = data;
+    while (i < data + len) {
+        unichar c = utf8_get_char(i);
+        i = utf8_next_char(i);
+        // Always handle ASCII.
+        if (c < 128) {
+            if (c >= 0x20 && c <= 0x7e) {
+                common_hal_displayio_textgrid_set_tile(self->tilegrid, self->cursor_x, self->cursor_y, c - 0x20);
+                self->cursor_x++;
+            }
+            if (c == '\r') {
+                self->cursor_x = 0;
+            } else if (c == '\n') {
+                self->cursor_y++;
+            }
+        } else {
+            // Do a linear search of the mapping for unicode.
+            const byte* j = self->unicode_characters;
+            uint8_t k = 0;
+            while (j < self->unicode_characters + self->unicode_characters_len) {
+                unichar potential_c = utf8_get_char(j);
+                j = utf8_next_char(j);
+                if (c == potential_c) {
+                    common_hal_displayio_textgrid_set_tile(self->tilegrid, self->cursor_x, self->cursor_y, 0x7f - 0x20 + k);
+                    self->cursor_x++;
+                    break;
+                }
+            }
+        }
+        if (self->cursor_x >= self->tilegrid->width_in_tiles) {
+            self->cursor_y++;
+            self->cursor_x %= self->tilegrid->width_in_tiles;
+        }
+        if (self->cursor_y >= self->tilegrid->height_in_tiles) {
+            self->cursor_y %= self->tilegrid->height_in_tiles;
+        }
+    }
+    return i - data;
+}
+
+bool common_hal_terminalio_terminal_ready_to_tx(terminalio_terminal_obj_t *self) {
+    return true;
+}
diff --git a/shared-module/terminalio/Terminal.h b/shared-module/terminalio/Terminal.h
new file mode 100644
index 000000000..1896075f3
--- /dev/null
+++ b/shared-module/terminalio/Terminal.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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_TERMINALIO_TERMINAL_H
+#define SHARED_MODULE_TERMINALIO_TERMINAL_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "py/obj.h"
+#include "shared-module/displayio/TileGrid.h"
+
+typedef struct  {
+    mp_obj_base_t base;
+    uint16_t cursor_x;
+    uint16_t cursor_y;
+    displayio_tilegrid_t* tilegrid;
+    const byte* unicode_characters;
+    uint16_t unicode_characters_len;
+} terminalio_terminal_obj_t;
+
+#endif /* SHARED_MODULE_TERMINALIO_TERMINAL_H */
diff --git a/shared-module/terminalio/__init__.c b/shared-module/terminalio/__init__.c
new file mode 100644
index 000000000..3f61f4823
--- /dev/null
+++ b/shared-module/terminalio/__init__.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 hathach 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 "shared-bindings/terminalio/__init__.h"
diff --git a/shared-module/terminalio/__init__.h b/shared-module/terminalio/__init__.h
new file mode 100644
index 000000000..e925dd429
--- /dev/null
+++ b/shared-module/terminalio/__init__.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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_TERMINALIO___INIT___H
+#define SHARED_MODULE_TERMINALIO___INIT___H
+
+#endif /* SHARED_MODULE_TERMINALIO___INIT___H */