Split UVC gadget into a library and test application

Split the project into a UVC gadget library and a test application. To
avoid rolling out a custom build system, switch to CMake.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 108 insertions, 0 deletions

diff --git a/include/uvcgadget/configfs.h b/include/uvcgadget/configfs.h
new file mode 100644
index 0000000..e5a7efa
--- /dev/null
+++ b/include/uvcgadget/configfs.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * ConfigFS Gadget device handling
+ *
+ * Copyright (C) 2018 Kieran Bingham
+ *
+ * Contact: Kieran Bingham <kieran.bingham@ideasonboard.com>
+ */
+
+#ifndef __CONFIGFS_H__
+#define __CONFIGFS_H__
+
+#include <stdint.h>
+
+/*
+ * struct uvc_function_config_endpoint - Endpoint parameters
+ * @bInterval: Transfer interval (interrupt and isochronous only)
+ * @bMaxBurst: Transfer burst size (super-speed only)
+ * @wMaxPacketSize: Maximum packet size (including the multiplier)
+ */
+struct uvc_function_config_endpoint {
+	unsigned int bInterval;
+	unsigned int bMaxBurst;
+	unsigned int wMaxPacketSize;
+};
+
+/*
+ * struct uvc_function_config_interface - Interface parameters
+ * @bInterfaceNumber: Interface number
+ */
+struct uvc_function_config_interface {
+	unsigned int bInterfaceNumber;
+};
+
+/*
+ * struct uvc_function_config_control - Control interface parameters
+ * @intf: Generic interface parameters
+ */
+struct uvc_function_config_control {
+	struct uvc_function_config_interface intf;
+};
+
+/*
+ * struct uvc_function_config_frame - Streaming frame parameters
+ * @index: Frame index in the UVC descriptors
+ * @width: Frame width in pixels
+ * @height: Frame height in pixels
+ * @num_intervals: Number of entries in the intervals array
+ * @intervals: Array of frame intervals
+ */
+struct uvc_function_config_frame {
+	unsigned int index;
+	unsigned int width;
+	unsigned int height;
+	unsigned int num_intervals;
+	unsigned int *intervals;
+};
+
+/*
+ * struct uvc_function_config_format - Streaming format parameters
+ * @index: Format index in the UVC descriptors
+ * @guid: Format GUID
+ * @fcc: V4L2 pixel format
+ * @num_frames: Number of entries in the frames array
+ * @frames: Array of frame descriptors
+ */
+struct uvc_function_config_format {
+	unsigned int index;
+	uint8_t guid[16];
+	unsigned int fcc;
+	unsigned int num_frames;
+	struct uvc_function_config_frame *frames;
+};
+
+/*
+ * struct uvc_function_config_streaming - Streaming interface parameters
+ * @intf: Generic interface parameters
+ * @ep: Endpoint parameters
+ * @num_formats: Number of entries in the formats array
+ * @formats: Array of format descriptors
+ */
+struct uvc_function_config_streaming {
+	struct uvc_function_config_interface intf;
+	struct uvc_function_config_endpoint ep;
+
+	unsigned int num_formats;
+	struct uvc_function_config_format *formats;
+};
+
+/*
+ * struct uvc_function_config - UVC function configuration parameters
+ * @video: Full path to the video device node
+ * @udc: UDC name
+ * @control: Control interface configuration
+ * @streaming: Streaming interface configuration
+ */
+struct uvc_function_config {
+	char *video;
+	char *udc;
+
+	struct uvc_function_config_control control;
+	struct uvc_function_config_streaming streaming;
+};
+
+struct uvc_function_config *configfs_parse_uvc_function(const char *function);
+void configfs_free_uvc_function(struct uvc_function_config *fc);
+
+#endif