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| CROSS_COMPILE ?= | ||
| ARCH ?= x86 | ||
| KERNEL_DIR ?= /usr/src/linux | ||
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| CC := $(CROSS_COMPILE)gcc | ||
| KERNEL_INCLUDE := -I$(KERNEL_DIR)/include -I$(KERNEL_DIR)/arch/$(ARCH)/include | ||
| CFLAGS := -W -Wall -Wno-unused-function -I/opt/vc/include -pipe | ||
| #CFLAGS := -W -Wall -Wno-unused-function -O2 -g -I/opt/vc/include -pipe | ||
| LDFLAGS := | ||
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| LIBS := -L/opt/vc/lib -lrt -lbcm_host -lvcos -lvchiq_arm -pthread -lmmal_core -lmmal_util -lmmal_vc_client -lvcsm | ||
| src = v4l2-mmal-uvc.c #$(wildcard *.c) | ||
| obj = $(src:.c=.o) | ||
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| %.o : %.c | ||
| $(CC) $(CFLAGS) -o $@ -c $< | ||
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| all: v4l2-mmal-uvc | ||
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| v4l2-mmal-uvc: $(obj) | ||
| $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) | ||
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| clean: | ||
| rm -f *.o | ||
| rm -f v4l2-mmal-uvc | ||
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| #!/bin/bash | ||
| ./v4l2-mmal-uvc -v /dev/video0 -u /dev/video1 -n3 -r1 |
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| /* | ||
| * uvc_gadget.h -- USB Video Class Gadget driver | ||
| * | ||
| * Copyright (C) 2009-2010 | ||
| * Laurent Pinchart ([email protected]) | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| */ | ||
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| #ifndef _UVC_GADGET_H_ | ||
| #define _UVC_GADGET_H_ | ||
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| #include <linux/ioctl.h> | ||
| #include <linux/types.h> | ||
| #include <linux/usb/ch9.h> | ||
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| #define UVC_EVENT_FIRST (V4L2_EVENT_PRIVATE_START + 0) | ||
| #define UVC_EVENT_CONNECT (V4L2_EVENT_PRIVATE_START + 0) | ||
| #define UVC_EVENT_DISCONNECT (V4L2_EVENT_PRIVATE_START + 1) | ||
| #define UVC_EVENT_STREAMON (V4L2_EVENT_PRIVATE_START + 2) | ||
| #define UVC_EVENT_STREAMOFF (V4L2_EVENT_PRIVATE_START + 3) | ||
| #define UVC_EVENT_SETUP (V4L2_EVENT_PRIVATE_START + 4) | ||
| #define UVC_EVENT_DATA (V4L2_EVENT_PRIVATE_START + 5) | ||
| #define UVC_EVENT_LAST (V4L2_EVENT_PRIVATE_START + 5) | ||
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| struct uvc_request_data | ||
| { | ||
| __s32 length; | ||
| __u8 data[60]; | ||
| }; | ||
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| struct uvc_event | ||
| { | ||
| union { | ||
| enum usb_device_speed speed; | ||
| struct usb_ctrlrequest req; | ||
| struct uvc_request_data data; | ||
| }; | ||
| }; | ||
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| #define UVCIOC_SEND_RESPONSE _IOW('U', 1, struct uvc_request_data) | ||
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| #define UVC_INTF_CONTROL 0 | ||
| #define UVC_INTF_STREAMING 1 | ||
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| /* ------------------------------------------------------------------------ | ||
| * Debugging, printing and logging | ||
| */ | ||
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| #ifdef __KERNEL__ | ||
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| #include <linux/usb.h> /* For usb_endpoint_* */ | ||
| #include <linux/usb/composite.h> | ||
| #include <linux/usb/gadget.h> | ||
| #include <linux/videodev2.h> | ||
| #include <linux/version.h> | ||
| #include <media/v4l2-fh.h> | ||
| #include <media/v4l2-device.h> | ||
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| #include "uvc_queue.h" | ||
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| #define UVC_TRACE_PROBE (1 << 0) | ||
| #define UVC_TRACE_DESCR (1 << 1) | ||
| #define UVC_TRACE_CONTROL (1 << 2) | ||
| #define UVC_TRACE_FORMAT (1 << 3) | ||
| #define UVC_TRACE_CAPTURE (1 << 4) | ||
| #define UVC_TRACE_CALLS (1 << 5) | ||
| #define UVC_TRACE_IOCTL (1 << 6) | ||
| #define UVC_TRACE_FRAME (1 << 7) | ||
| #define UVC_TRACE_SUSPEND (1 << 8) | ||
| #define UVC_TRACE_STATUS (1 << 9) | ||
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| #define UVC_WARN_MINMAX 0 | ||
| #define UVC_WARN_PROBE_DEF 1 | ||
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| extern unsigned int uvc_gadget_trace_param; | ||
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| #define uvc_trace(flag, msg...) \ | ||
| do { \ | ||
| if (uvc_gadget_trace_param & flag) \ | ||
| printk(KERN_DEBUG "uvcvideo: " msg); \ | ||
| } while (0) | ||
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| #define uvc_warn_once(dev, warn, msg...) \ | ||
| do { \ | ||
| if (!test_and_set_bit(warn, &dev->warnings)) \ | ||
| printk(KERN_INFO "uvcvideo: " msg); \ | ||
| } while (0) | ||
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| #define uvc_printk(level, msg...) \ | ||
| printk(level "uvcvideo: " msg) | ||
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| /* ------------------------------------------------------------------------ | ||
| * Driver specific constants | ||
| */ | ||
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| #define UVC_NUM_REQUESTS 4 | ||
| #define UVC_MAX_REQUEST_SIZE 64 | ||
| #define UVC_MAX_EVENTS 4 | ||
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| /* ------------------------------------------------------------------------ | ||
| * Structures | ||
| */ | ||
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| struct uvc_video | ||
| { | ||
| struct usb_ep *ep; | ||
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| /* Frame parameters */ | ||
| u8 bpp; | ||
| u32 fcc; | ||
| unsigned int width; | ||
| unsigned int height; | ||
| unsigned int imagesize; | ||
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| /* Requests */ | ||
| unsigned int req_size; | ||
| struct usb_request *req[UVC_NUM_REQUESTS]; | ||
| __u8 *req_buffer[UVC_NUM_REQUESTS]; | ||
| struct list_head req_free; | ||
| spinlock_t req_lock; | ||
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| void (*encode) (struct usb_request *req, struct uvc_video *video, | ||
| struct uvc_buffer *buf); | ||
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| /* Context data used by the completion handler */ | ||
| __u32 payload_size; | ||
| __u32 max_payload_size; | ||
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| struct uvc_video_queue queue; | ||
| unsigned int fid; | ||
| }; | ||
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| enum uvc_state | ||
| { | ||
| UVC_STATE_DISCONNECTED, | ||
| UVC_STATE_CONNECTED, | ||
| UVC_STATE_STREAMING, | ||
| }; | ||
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| struct uvc_device | ||
| { | ||
| struct video_device *vdev; | ||
| struct v4l2_device v4l2_dev; | ||
| enum uvc_state state; | ||
| struct usb_function func; | ||
| struct uvc_video video; | ||
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| /* Descriptors */ | ||
| struct { | ||
| const struct uvc_descriptor_header * const *fs_control; | ||
| const struct uvc_descriptor_header * const *ss_control; | ||
| const struct uvc_descriptor_header * const *fs_streaming; | ||
| const struct uvc_descriptor_header * const *hs_streaming; | ||
| const struct uvc_descriptor_header * const *ss_streaming; | ||
| } desc; | ||
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| unsigned int control_intf; | ||
| struct usb_ep *control_ep; | ||
| struct usb_request *control_req; | ||
| void *control_buf; | ||
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| unsigned int streaming_intf; | ||
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| /* Events */ | ||
| unsigned int event_length; | ||
| unsigned int event_setup_out : 1; | ||
| }; | ||
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| static inline struct uvc_device *to_uvc(struct usb_function *f) | ||
| { | ||
| return container_of(f, struct uvc_device, func); | ||
| } | ||
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| struct uvc_file_handle | ||
| { | ||
| struct v4l2_fh vfh; | ||
| struct uvc_video *device; | ||
| }; | ||
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| #define to_uvc_file_handle(handle) \ | ||
| container_of(handle, struct uvc_file_handle, vfh) | ||
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| /* ------------------------------------------------------------------------ | ||
| * Functions | ||
| */ | ||
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| extern void uvc_function_setup_continue(struct uvc_device *uvc); | ||
| extern void uvc_endpoint_stream(struct uvc_device *dev); | ||
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| extern void uvc_function_connect(struct uvc_device *uvc); | ||
| extern void uvc_function_disconnect(struct uvc_device *uvc); | ||
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| #endif /* __KERNEL__ */ | ||
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| #endif /* _UVC_GADGET_H_ */ | ||
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