libcamera: pipeline: Raspberry Pi pipeline handler

Initial implementation of the Raspberry Pi (BCM2835) ISP pipeline handler. All code is licensed under the BSD-2-Clause terms. Copyright (c) 2019-2020 Raspberry Pi Trading Ltd. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-05-03 16:24:05 +01:00
parent 43d81d43fe
commit 740fd1b62f
5 changed files with 2041 additions and 0 deletions
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019-2020, Raspberry Pi Ltd.
+ *
+ * raspberrypi.h - Image Processing Algorithm interface for Raspberry Pi
+ */
+#ifndef __LIBCAMERA_IPA_INTERFACE_RASPBERRYPI_H__
+#define __LIBCAMERA_IPA_INTERFACE_RASPBERRYPI_H__
+
+#include <libcamera/control_ids.h>
+#include <libcamera/controls.h>
+
+enum RPiOperations {
+	RPI_IPA_ACTION_V4L2_SET_STAGGERED = 1,
+	RPI_IPA_ACTION_V4L2_SET_ISP,
+	RPI_IPA_ACTION_STATS_METADATA_COMPLETE,
+	RPI_IPA_ACTION_RUN_ISP,
+	RPI_IPA_ACTION_RUN_ISP_AND_DROP_FRAME,
+	RPI_IPA_ACTION_SET_SENSOR_CONFIG,
+	RPI_IPA_ACTION_EMBEDDED_COMPLETE,
+	RPI_IPA_EVENT_SIGNAL_STAT_READY,
+	RPI_IPA_EVENT_SIGNAL_ISP_PREPARE,
+	RPI_IPA_EVENT_QUEUE_REQUEST,
+	RPI_IPA_EVENT_LS_TABLE_ALLOCATION,
+};
+
+enum RPiIpaMask {
+	ID		= 0x0ffff,
+	STATS		= 0x10000,
+	EMBEDDED_DATA	= 0x20000,
+	BAYER_DATA	= 0x40000
+};
+
+/* Size of the LS grid allocation. */
+#define MAX_LS_GRID_SIZE (32 << 10)
+
+namespace libcamera {
+
+/* List of controls handled by the Raspberry Pi IPA */
+static const ControlInfoMap RPiControls = {
+	{ &controls::AeEnable, ControlInfo(false, true) },
+	{ &controls::ExposureTime, ControlInfo(0, 999999) },
+	{ &controls::AnalogueGain, ControlInfo(1.0f, 32.0f) },
+	{ &controls::AeMeteringMode, ControlInfo(0, static_cast<int32_t>(controls::MeteringModeMax)) },
+	{ &controls::AeConstraintMode, ControlInfo(0, static_cast<int32_t>(controls::ConstraintModeMax)) },
+	{ &controls::AeExposureMode, ControlInfo(0, static_cast<int32_t>(controls::ExposureModeMax)) },
+	{ &controls::ExposureValue, ControlInfo(0.0f, 16.0f) },
+	{ &controls::AwbEnable, ControlInfo(false, true) },
+	{ &controls::ColourGains, ControlInfo(0.0f, 32.0f) },
+	{ &controls::AwbMode, ControlInfo(0, static_cast<int32_t>(controls::AwbModeMax)) },
+	{ &controls::Brightness, ControlInfo(-1.0f, 1.0f) },
+	{ &controls::Contrast, ControlInfo(0.0f, 32.0f) },
+	{ &controls::Saturation, ControlInfo(0.0f, 32.0f) },
+};
+
+} /* namespace libcamera */
+
+#endif /* __LIBCAMERA_IPA_INTERFACE_RASPBERRYPI_H__ */