Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * helper functions for vmalloc capture buffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * The functions expect the hardware being able to scatter gather
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * (i.e. the buffers are not linear in physical memory, but fragmented
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * into PAGE_SIZE chunks).  They also assume the driver does not need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * to touch the video data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifndef _VIDEOBUF_VMALLOC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define _VIDEOBUF_VMALLOC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <media/videobuf-core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* --------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct videobuf_vmalloc_memory {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	u32                 magic;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	void                *vaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	/* remap_vmalloc_range seems to need to run
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	 * after mmap() on some cases */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	struct vm_area_struct *vma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) void videobuf_queue_vmalloc_init(struct videobuf_queue *q,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 			 const struct videobuf_queue_ops *ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			 struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 			 spinlock_t *irqlock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 			 enum v4l2_buf_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 			 enum v4l2_field field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 			 unsigned int msize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			 void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			 struct mutex *ext_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void *videobuf_to_vmalloc(struct videobuf_buffer *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) void videobuf_vmalloc_free(struct videobuf_buffer *buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #endif