add circuitpython code

4 files changed, 322 insertions, 0 deletions

diff --git a/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.c b/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.c
new file mode 100644
index 0000000..7f90f09
--- /dev/null
+++ b/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.c
@@ -0,0 +1,200 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler 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/obj.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+
+#include "shared/runtime/context_manager_helpers.h"
+
+#include "shared-bindings/imagecapture/ParallelImageCapture.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "common-hal/imagecapture/ParallelImageCapture.h"
+
+//| class ParallelImageCapture:
+//|     """Capture image frames from a camera with parallel data interface"""
+//|
+//|     def __init__(
+//|         self,
+//|         *,
+//|         data_pins: List[microcontroller.Pin],
+//|         clock: microcontroller.Pin,
+//|         vsync: Optional[microcontroller.Pin],
+//|         href: Optional[microcontroller.Pin],
+//|     ) -> None:
+//|         """Create a parallel image capture object
+//|
+//|         :param List[microcontroller.Pin] data_pins: The data pins.
+//|         :param microcontroller.Pin clock: The pixel clock input.
+//|         :param microcontroller.Pin vsync: The vertical sync input, which has a negative-going pulse at the beginning of each frame.
+//|         :param microcontroller.Pin href: The horizontal reference input, which is high whenever the camera is transmitting valid pixel information.
+//|         """
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
+    enum { ARG_data_pins, ARG_clock, ARG_vsync, ARG_href,
+           NUM_ARGS };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_data_pins, MP_ARG_OBJ | MP_ARG_KW_ONLY, { .u_obj = MP_ROM_NONE } },
+        { MP_QSTR_clock, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
+        { MP_QSTR_vsync, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
+        { MP_QSTR_href, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    MP_STATIC_ASSERT(MP_ARRAY_SIZE(allowed_args) == NUM_ARGS);
+    mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    uint8_t pins[32];
+    uint8_t pin_count;
+    validate_pins(MP_QSTR_data, pins, MP_ARRAY_SIZE(pins), args[ARG_data_pins].u_obj, &pin_count);
+
+    const mcu_pin_obj_t *clock = validate_obj_is_free_pin(args[ARG_clock].u_obj);
+    const mcu_pin_obj_t *vsync = validate_obj_is_free_pin_or_none(args[ARG_vsync].u_obj);
+    const mcu_pin_obj_t *href = validate_obj_is_free_pin_or_none(args[ARG_href].u_obj);
+
+    imagecapture_parallelimagecapture_obj_t *self = m_new_obj(imagecapture_parallelimagecapture_obj_t);
+    self->base.type = &imagecapture_parallelimagecapture_type;
+
+    common_hal_imagecapture_parallelimagecapture_construct(self, pins, pin_count, clock, vsync, href);
+
+    return self;
+}
+
+//|     def capture(self, buffer: WriteableBuffer) -> WriteableBuffer:
+//|         """Capture a single frame into the given buffer.
+//|
+//|         This will stop a continuous-mode capture, if one is in progress."""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_capture(mp_obj_t self_in, mp_obj_t buffer) {
+    imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
+    common_hal_imagecapture_parallelimagecapture_singleshot_capture(self, buffer);
+
+    return buffer;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(imagecapture_parallelimagecapture_capture_obj, imagecapture_parallelimagecapture_capture);
+
+//|     def continuous_capture_start(self, buffer1: WriteableBuffer, buffer2: WriteableBuffer, /) -> None:
+//|         """Begin capturing into the given buffers in the background.
+//|
+//|         Call `continuous_capture_get_frame` to get the next available
+//|         frame, and `continuous_capture_stop` to stop capturing.
+//|
+//|         Until `continuous_capture_stop` (or `deinit`) is called, the
+//|         `ParallelImageCapture` object keeps references to ``buffer1`` and
+//|         ``buffer2``, so the objects will not be garbage collected."""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_start(mp_obj_t self_in, mp_obj_t buffer1, mp_obj_t buffer2) {
+    imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
+    common_hal_imagecapture_parallelimagecapture_continuous_capture_start(self, buffer1, buffer2);
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(imagecapture_parallelimagecapture_continuous_capture_start_obj, imagecapture_parallelimagecapture_continuous_capture_start);
+
+//|     def continuous_capture_get_frame(self) -> WriteableBuffer:
+//|         """Return the next available frame, one of the two buffers passed to `continuous_capture_start`"""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_get_frame(mp_obj_t self_in) {
+    imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
+    return common_hal_imagecapture_parallelimagecapture_continuous_capture_get_frame(self);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_get_frame_obj, imagecapture_parallelimagecapture_continuous_capture_get_frame);
+
+
+
+//|     def continuous_capture_stop(self) -> None:
+//|         """Stop continuous capture.
+//|
+//|         Calling this method also causes the object to release its
+//|         references to the buffers passed to `continuous_capture_start`,
+//|         potentially allowing the objects to be garbage collected."""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_stop(mp_obj_t self_in) {
+    imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
+    common_hal_imagecapture_parallelimagecapture_continuous_capture_stop(self);
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_stop_obj, imagecapture_parallelimagecapture_continuous_capture_stop);
+
+
+
+
+//|     def deinit(self) -> None:
+//|         """Deinitialize this instance"""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture_deinit(mp_obj_t self_in) {
+    imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
+    common_hal_imagecapture_parallelimagecapture_deinit(self);
+    return mp_const_none;
+}
+
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_deinit_obj, imagecapture_parallelimagecapture_deinit);
+
+//|     def __enter__(self) -> ParallelImageCapture:
+//|         """No-op used in Context Managers."""
+//|         ...
+//|
+//  Provided by context manager helper.
+
+//|     def __exit__(self) -> None:
+//|         """Automatically deinitializes the hardware on context exit. See
+//|         :ref:`lifetime-and-contextmanagers` for more info."""
+//|         ...
+//|
+STATIC mp_obj_t imagecapture_parallelimagecapture___exit__(size_t n_args, const mp_obj_t *args) {
+    (void)n_args;
+    common_hal_imagecapture_parallelimagecapture_deinit(args[0]);
+    return mp_const_none;
+}
+
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(imagecapture_parallelimagecapture___exit___obj, 4, 4, imagecapture_parallelimagecapture___exit__);
+
+
+STATIC const mp_rom_map_elem_t imagecapture_parallelimagecapture_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&imagecapture_parallelimagecapture_deinit_obj) },
+    { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
+    { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&imagecapture_parallelimagecapture___exit___obj) },
+
+    { MP_ROM_QSTR(MP_QSTR_capture), MP_ROM_PTR(&imagecapture_parallelimagecapture_capture_obj) },
+    { MP_ROM_QSTR(MP_QSTR_continuous_capture_start), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_start_obj) },
+    { MP_ROM_QSTR(MP_QSTR_continuous_capture_stop), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_stop_obj) },
+    { MP_ROM_QSTR(MP_QSTR_continuous_capture_get_frame), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_get_frame_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(imagecapture_parallelimagecapture_locals_dict, imagecapture_parallelimagecapture_locals_dict_table);
+
+const mp_obj_type_t imagecapture_parallelimagecapture_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_ParallelImageCapture,
+    .make_new = imagecapture_parallelimagecapture_make_new,
+    .locals_dict = (mp_obj_dict_t *)&imagecapture_parallelimagecapture_locals_dict,
+};
diff --git a/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.h b/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.h
new file mode 100644
index 0000000..72ddc23
--- /dev/null
+++ b/circuitpython/shared-bindings/imagecapture/ParallelImageCapture.h
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler 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.
+ */
+
+#pragma once
+
+#include "common-hal/microcontroller/Pin.h"
+
+typedef struct imagecapture_parallelimagecapture_obj imagecapture_parallelimagecapture_obj_t;
+extern const mp_obj_type_t imagecapture_parallelimagecapture_type;
+
+// if only the first element of data_pins is non-NULL, the pins are sequential in microcontroller pin numbering.
+void common_hal_imagecapture_parallelimagecapture_construct(imagecapture_parallelimagecapture_obj_t *self,
+    const uint8_t data_pins[],
+    uint8_t data_count,
+    const mcu_pin_obj_t *data_clock,
+    const mcu_pin_obj_t *vertical_sync,
+    const mcu_pin_obj_t *horizontal_sync);
+void common_hal_imagecapture_parallelimagecapture_deinit(imagecapture_parallelimagecapture_obj_t *self);
+bool common_hal_imagecapture_parallelimagecapture_deinited(imagecapture_parallelimagecapture_obj_t *self);
+void common_hal_imagecapture_parallelimagecapture_singleshot_capture(imagecapture_parallelimagecapture_obj_t *self, mp_obj_t buffer);
+void common_hal_imagecapture_parallelimagecapture_continuous_capture_start(imagecapture_parallelimagecapture_obj_t *self, mp_obj_t buffer1, mp_obj_t buffer2);
+void common_hal_imagecapture_parallelimagecapture_continuous_capture_stop(imagecapture_parallelimagecapture_obj_t *self);
+mp_obj_t common_hal_imagecapture_parallelimagecapture_continuous_capture_get_frame(imagecapture_parallelimagecapture_obj_t *self);
diff --git a/circuitpython/shared-bindings/imagecapture/__init__.c b/circuitpython/shared-bindings/imagecapture/__init__.c
new file mode 100644
index 0000000..0e5092a
--- /dev/null
+++ b/circuitpython/shared-bindings/imagecapture/__init__.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler 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 <stdint.h>
+
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "shared-bindings/imagecapture/ParallelImageCapture.h"
+
+//| """Support for "Parallel capture" interfaces"""
+//|
+
+STATIC const mp_rom_map_elem_t imagecapture_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_imagecapture) },
+    { MP_ROM_QSTR(MP_QSTR_ParallelImageCapture), MP_ROM_PTR(&imagecapture_parallelimagecapture_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(imagecapture_module_globals, imagecapture_module_globals_table);
+
+const mp_obj_module_t imagecapture_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&imagecapture_module_globals,
+};
+
+MP_REGISTER_MODULE(MP_QSTR_imagecapture, imagecapture_module, CIRCUITPY_IMAGECAPTURE);
diff --git a/circuitpython/shared-bindings/imagecapture/__init__.h b/circuitpython/shared-bindings/imagecapture/__init__.h
new file mode 100644
index 0000000..1e170aa
--- /dev/null
+++ b/circuitpython/shared-bindings/imagecapture/__init__.h
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Jeff Epler 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.
+ */
+
+#pragma once