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-rw-r--r--include/media/cec.h2
-rw-r--r--include/media/mipi-csi2.h1
-rw-r--r--include/media/v4l2-dev.h2
-rw-r--r--include/media/v4l2-device.h4
-rw-r--r--include/media/v4l2-event.h2
-rw-r--r--include/media/v4l2-mc.h6
-rw-r--r--include/media/v4l2-subdev.h13
-rw-r--r--include/media/videobuf-core.h233
-rw-r--r--include/media/videobuf-dma-contig.h30
-rw-r--r--include/media/videobuf-dma-sg.h102
-rw-r--r--include/media/videobuf-vmalloc.h43
11 files changed, 18 insertions, 420 deletions
diff --git a/include/media/cec.h b/include/media/cec.h
index 9c007f8356..53e4b2eb2b 100644
--- a/include/media/cec.h
+++ b/include/media/cec.h
@@ -275,7 +275,7 @@ struct cec_adapter {
u32 sequence;
- char input_phys[32];
+ char input_phys[40];
};
static inline void *cec_get_drvdata(const struct cec_adapter *adap)
diff --git a/include/media/mipi-csi2.h b/include/media/mipi-csi2.h
index c3d8f12234..40fc026425 100644
--- a/include/media/mipi-csi2.h
+++ b/include/media/mipi-csi2.h
@@ -19,6 +19,7 @@
#define MIPI_CSI2_DT_NULL 0x10
#define MIPI_CSI2_DT_BLANKING 0x11
#define MIPI_CSI2_DT_EMBEDDED_8B 0x12
+#define MIPI_CSI2_DT_GENERIC_LONG(n) (0x13 + (n) - 1) /* 1..4 */
#define MIPI_CSI2_DT_YUV420_8B 0x18
#define MIPI_CSI2_DT_YUV420_10B 0x19
#define MIPI_CSI2_DT_YUV420_8B_LEGACY 0x1a
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e0a13505f8..d82dfdbf6e 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -284,7 +284,7 @@ struct video_device {
struct v4l2_prio_state *prio;
/* device info */
- char name[32];
+ char name[64];
enum vfl_devnode_type vfl_type;
enum vfl_devnode_direction vfl_dir;
int minor;
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 8a8977a33e..f6f111fae3 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -13,8 +13,6 @@
#include <media/v4l2-subdev.h>
#include <media/v4l2-dev.h>
-#define V4L2_DEVICE_NAME_SIZE (20 + 16)
-
struct v4l2_ctrl_handler;
/**
@@ -49,7 +47,7 @@ struct v4l2_device {
struct media_device *mdev;
struct list_head subdevs;
spinlock_t lock;
- char name[V4L2_DEVICE_NAME_SIZE];
+ char name[36];
void (*notify)(struct v4l2_subdev *sd,
unsigned int notification, void *arg);
struct v4l2_ctrl_handler *ctrl_handler;
diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h
index 4ffa914ade..3a0e258836 100644
--- a/include/media/v4l2-event.h
+++ b/include/media/v4l2-event.h
@@ -78,7 +78,7 @@ struct v4l2_subscribed_event {
unsigned int elems;
unsigned int first;
unsigned int in_use;
- struct v4l2_kevent events[];
+ struct v4l2_kevent events[] __counted_by(elems);
};
/**
diff --git a/include/media/v4l2-mc.h b/include/media/v4l2-mc.h
index b39586dfba..ed0a44b6ea 100644
--- a/include/media/v4l2-mc.h
+++ b/include/media/v4l2-mc.h
@@ -143,6 +143,9 @@ int v4l2_create_fwnode_links(struct v4l2_subdev *src_sd,
* v4l2_pipeline_pm_get - Increase the use count of a pipeline
* @entity: The root entity of a pipeline
*
+ * THIS FUNCTION IS DEPRECATED. DO NOT USE IN NEW DRIVERS. USE RUNTIME PM
+ * ON SUB-DEVICE DRIVERS INSTEAD.
+ *
* Update the use count of all entities in the pipeline and power entities on.
*
* This function is intended to be called in video node open. It uses
@@ -157,6 +160,9 @@ int v4l2_pipeline_pm_get(struct media_entity *entity);
* v4l2_pipeline_pm_put - Decrease the use count of a pipeline
* @entity: The root entity of a pipeline
*
+ * THIS FUNCTION IS DEPRECATED. DO NOT USE IN NEW DRIVERS. USE RUNTIME PM
+ * ON SUB-DEVICE DRIVERS INSTEAD.
+ *
* Update the use count of all entities in the pipeline and power entities off.
*
* This function is intended to be called in video node release. It uses
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d9fca929c1..c1f90c1223 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -446,7 +446,9 @@ enum v4l2_subdev_pre_streamon_flags {
* @s_stream: start (enabled == 1) or stop (enabled == 0) streaming on the
* sub-device. Failure on stop will remove any resources acquired in
* streaming start, while the error code is still returned by the driver.
- * Also see call_s_stream wrapper in v4l2-subdev.c.
+ * The caller shall track the subdev state, and shall not start or stop an
+ * already started or stopped subdev. Also see call_s_stream wrapper in
+ * v4l2-subdev.c.
*
* @g_pixelaspect: callback to return the pixelaspect ratio.
*
@@ -822,8 +824,9 @@ struct v4l2_subdev_state {
* operation shall fail if the pad index it has been called on
* is not valid or in case of unrecoverable failures.
*
- * @set_routing: enable or disable data connection routes described in the
- * subdevice routing table.
+ * @set_routing: Enable or disable data connection routes described in the
+ * subdevice routing table. Subdevs that implement this operation
+ * must set the V4L2_SUBDEV_FL_STREAMS flag.
*
* @enable_streams: Enable the streams defined in streams_mask on the given
* source pad. Subdevs that implement this operation must use the active
@@ -948,8 +951,6 @@ struct v4l2_subdev_internal_ops {
void (*release)(struct v4l2_subdev *sd);
};
-#define V4L2_SUBDEV_NAME_SIZE 32
-
/* Set this flag if this subdev is a i2c device. */
#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
/* Set this flag if this subdev is a spi device. */
@@ -1059,7 +1060,7 @@ struct v4l2_subdev {
const struct v4l2_subdev_ops *ops;
const struct v4l2_subdev_internal_ops *internal_ops;
struct v4l2_ctrl_handler *ctrl_handler;
- char name[V4L2_SUBDEV_NAME_SIZE];
+ char name[52];
u32 grp_id;
void *dev_priv;
void *host_priv;
diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
deleted file mode 100644
index 2e01b2e9a1..0000000000
--- a/include/media/videobuf-core.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * generic helper functions for handling video4linux capture buffers
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@kernel.org>
- * (c) 2006 Ted Walther and John Sokol
- */
-
-#ifndef _VIDEOBUF_CORE_H
-#define _VIDEOBUF_CORE_H
-
-#include <linux/poll.h>
-#include <linux/videodev2.h>
-
-#define UNSET (-1U)
-
-
-struct videobuf_buffer;
-struct videobuf_queue;
-
-/* --------------------------------------------------------------------- */
-
-/*
- * A small set of helper functions to manage video4linux buffers.
- *
- * struct videobuf_buffer holds the data structures used by the helper
- * functions, additionally some commonly used fields for v4l buffers
- * (width, height, lists, waitqueue) are in there. That struct should
- * be used as first element in the drivers buffer struct.
- *
- * about the mmap helpers (videobuf_mmap_*):
- *
- * The mmaper function allows to map any subset of contiguous buffers.
- * This includes one mmap() call for all buffers (which the original
- * video4linux API uses) as well as one mmap() for every single buffer
- * (which v4l2 uses).
- *
- * If there is a valid mapping for a buffer, buffer->baddr/bsize holds
- * userspace address + size which can be fed into the
- * videobuf_dma_init_user function listed above.
- *
- */
-
-struct videobuf_mapping {
- unsigned int count;
- struct videobuf_queue *q;
-};
-
-enum videobuf_state {
- VIDEOBUF_NEEDS_INIT = 0,
- VIDEOBUF_PREPARED = 1,
- VIDEOBUF_QUEUED = 2,
- VIDEOBUF_ACTIVE = 3,
- VIDEOBUF_DONE = 4,
- VIDEOBUF_ERROR = 5,
- VIDEOBUF_IDLE = 6,
-};
-
-struct videobuf_buffer {
- unsigned int i;
- u32 magic;
-
- /* info about the buffer */
- unsigned int width;
- unsigned int height;
- unsigned int bytesperline; /* use only if != 0 */
- unsigned long size;
- enum v4l2_field field;
- enum videobuf_state state;
- struct list_head stream; /* QBUF/DQBUF list */
-
- /* touched by irq handler */
- struct list_head queue;
- wait_queue_head_t done;
- unsigned int field_count;
- u64 ts;
-
- /* Memory type */
- enum v4l2_memory memory;
-
- /* buffer size */
- size_t bsize;
-
- /* buffer offset (mmap + overlay) */
- size_t boff;
-
- /* buffer addr (userland ptr!) */
- unsigned long baddr;
-
- /* for mmap'ed buffers */
- struct videobuf_mapping *map;
-
- /* Private pointer to allow specific methods to store their data */
- int privsize;
- void *priv;
-};
-
-struct videobuf_queue_ops {
- int (*buf_setup)(struct videobuf_queue *q,
- unsigned int *count, unsigned int *size);
- int (*buf_prepare)(struct videobuf_queue *q,
- struct videobuf_buffer *vb,
- enum v4l2_field field);
- void (*buf_queue)(struct videobuf_queue *q,
- struct videobuf_buffer *vb);
- void (*buf_release)(struct videobuf_queue *q,
- struct videobuf_buffer *vb);
-};
-
-#define MAGIC_QTYPE_OPS 0x12261003
-
-/* Helper operations - device type dependent */
-struct videobuf_qtype_ops {
- u32 magic;
-
- struct videobuf_buffer *(*alloc_vb)(size_t size);
- void *(*vaddr) (struct videobuf_buffer *buf);
- int (*iolock) (struct videobuf_queue *q,
- struct videobuf_buffer *vb,
- struct v4l2_framebuffer *fbuf);
- int (*sync) (struct videobuf_queue *q,
- struct videobuf_buffer *buf);
- int (*mmap_mapper) (struct videobuf_queue *q,
- struct videobuf_buffer *buf,
- struct vm_area_struct *vma);
-};
-
-struct videobuf_queue {
- struct mutex vb_lock;
- struct mutex *ext_lock;
- spinlock_t *irqlock;
- struct device *dev;
-
- wait_queue_head_t wait; /* wait if queue is empty */
-
- enum v4l2_buf_type type;
- unsigned int msize;
- enum v4l2_field field;
- enum v4l2_field last; /* for field=V4L2_FIELD_ALTERNATE */
- struct videobuf_buffer *bufs[VIDEO_MAX_FRAME];
- const struct videobuf_queue_ops *ops;
- struct videobuf_qtype_ops *int_ops;
-
- unsigned int streaming:1;
- unsigned int reading:1;
-
- /* capture via mmap() + ioctl(QBUF/DQBUF) */
- struct list_head stream;
-
- /* capture via read() */
- unsigned int read_off;
- struct videobuf_buffer *read_buf;
-
- /* driver private data */
- void *priv_data;
-};
-
-static inline void videobuf_queue_lock(struct videobuf_queue *q)
-{
- if (!q->ext_lock)
- mutex_lock(&q->vb_lock);
-}
-
-static inline void videobuf_queue_unlock(struct videobuf_queue *q)
-{
- if (!q->ext_lock)
- mutex_unlock(&q->vb_lock);
-}
-
-int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb,
- int non_blocking, int intr);
-int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb,
- struct v4l2_framebuffer *fbuf);
-
-struct videobuf_buffer *videobuf_alloc_vb(struct videobuf_queue *q);
-
-/* Used on videobuf-dvb */
-void *videobuf_queue_to_vaddr(struct videobuf_queue *q,
- struct videobuf_buffer *buf);
-
-void videobuf_queue_core_init(struct videobuf_queue *q,
- const struct videobuf_queue_ops *ops,
- struct device *dev,
- spinlock_t *irqlock,
- enum v4l2_buf_type type,
- enum v4l2_field field,
- unsigned int msize,
- void *priv,
- struct videobuf_qtype_ops *int_ops,
- struct mutex *ext_lock);
-int videobuf_queue_is_busy(struct videobuf_queue *q);
-void videobuf_queue_cancel(struct videobuf_queue *q);
-
-enum v4l2_field videobuf_next_field(struct videobuf_queue *q);
-int videobuf_reqbufs(struct videobuf_queue *q,
- struct v4l2_requestbuffers *req);
-int videobuf_querybuf(struct videobuf_queue *q, struct v4l2_buffer *b);
-int videobuf_qbuf(struct videobuf_queue *q,
- struct v4l2_buffer *b);
-int videobuf_dqbuf(struct videobuf_queue *q,
- struct v4l2_buffer *b, int nonblocking);
-int videobuf_streamon(struct videobuf_queue *q);
-int videobuf_streamoff(struct videobuf_queue *q);
-
-void videobuf_stop(struct videobuf_queue *q);
-
-int videobuf_read_start(struct videobuf_queue *q);
-void videobuf_read_stop(struct videobuf_queue *q);
-ssize_t videobuf_read_stream(struct videobuf_queue *q,
- char __user *data, size_t count, loff_t *ppos,
- int vbihack, int nonblocking);
-ssize_t videobuf_read_one(struct videobuf_queue *q,
- char __user *data, size_t count, loff_t *ppos,
- int nonblocking);
-__poll_t videobuf_poll_stream(struct file *file,
- struct videobuf_queue *q,
- poll_table *wait);
-
-int videobuf_mmap_setup(struct videobuf_queue *q,
- unsigned int bcount, unsigned int bsize,
- enum v4l2_memory memory);
-int __videobuf_mmap_setup(struct videobuf_queue *q,
- unsigned int bcount, unsigned int bsize,
- enum v4l2_memory memory);
-int videobuf_mmap_free(struct videobuf_queue *q);
-int videobuf_mmap_mapper(struct videobuf_queue *q,
- struct vm_area_struct *vma);
-
-#endif
diff --git a/include/media/videobuf-dma-contig.h b/include/media/videobuf-dma-contig.h
deleted file mode 100644
index 525883b2c5..0000000000
--- a/include/media/videobuf-dma-contig.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for physically contiguous capture buffers
- *
- * The functions support hardware lacking scatter gather support
- * (i.e. the buffers must be linear in physical memory)
- *
- * Copyright (c) 2008 Magnus Damm
- */
-#ifndef _VIDEOBUF_DMA_CONTIG_H
-#define _VIDEOBUF_DMA_CONTIG_H
-
-#include <linux/dma-mapping.h>
-#include <media/videobuf-core.h>
-
-void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
- const struct videobuf_queue_ops *ops,
- struct device *dev,
- spinlock_t *irqlock,
- enum v4l2_buf_type type,
- enum v4l2_field field,
- unsigned int msize,
- void *priv,
- struct mutex *ext_lock);
-
-dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
-void videobuf_dma_contig_free(struct videobuf_queue *q,
- struct videobuf_buffer *buf);
-
-#endif /* _VIDEOBUF_DMA_CONTIG_H */
diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h
deleted file mode 100644
index 930ff8d454..0000000000
--- a/include/media/videobuf-dma-sg.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for SG DMA video4linux capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks). They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@kernel.org>
- * (c) 2006 Ted Walther and John Sokol
- */
-#ifndef _VIDEOBUF_DMA_SG_H
-#define _VIDEOBUF_DMA_SG_H
-
-#include <media/videobuf-core.h>
-
-/* --------------------------------------------------------------------- */
-
-/*
- * A small set of helper functions to manage buffers (both userland
- * and kernel) for DMA.
- *
- * videobuf_dma_init_*()
- * creates a buffer. The userland version takes a userspace
- * pointer + length. The kernel version just wants the size and
- * does memory allocation too using vmalloc_32().
- *
- * videobuf_dma_*()
- * see Documentation/core-api/dma-api-howto.rst, these functions to
- * basically the same. The map function does also build a
- * scatterlist for the buffer (and unmap frees it ...)
- *
- * videobuf_dma_free()
- * no comment ...
- *
- */
-
-struct videobuf_dmabuf {
- u32 magic;
-
- /* for userland buffer */
- int offset;
- size_t size;
- struct page **pages;
-
- /* for kernel buffers */
- void *vaddr;
- struct page **vaddr_pages;
- dma_addr_t *dma_addr;
- struct device *dev;
-
- /* for overlay buffers (pci-pci dma) */
- dma_addr_t bus_addr;
-
- /* common */
- struct scatterlist *sglist;
- int sglen;
- unsigned long nr_pages;
- int direction;
-};
-
-struct videobuf_dma_sg_memory {
- u32 magic;
-
- /* for mmap'ed buffers */
- struct videobuf_dmabuf dma;
-};
-
-/*
- * Scatter-gather DMA buffer API.
- *
- * These functions provide a simple way to create a page list and a
- * scatter-gather list from a kernel, userspace of physical address and map the
- * memory for DMA operation.
- *
- * Despite the name, this is totally unrelated to videobuf, except that
- * videobuf-dma-sg uses the same API internally.
- */
-int videobuf_dma_free(struct videobuf_dmabuf *dma);
-
-int videobuf_dma_unmap(struct device *dev, struct videobuf_dmabuf *dma);
-struct videobuf_dmabuf *videobuf_to_dma(struct videobuf_buffer *buf);
-
-void *videobuf_sg_alloc(size_t size);
-
-void videobuf_queue_sg_init(struct videobuf_queue *q,
- const struct videobuf_queue_ops *ops,
- struct device *dev,
- spinlock_t *irqlock,
- enum v4l2_buf_type type,
- enum v4l2_field field,
- unsigned int msize,
- void *priv,
- struct mutex *ext_lock);
-
-#endif /* _VIDEOBUF_DMA_SG_H */
-
diff --git a/include/media/videobuf-vmalloc.h b/include/media/videobuf-vmalloc.h
deleted file mode 100644
index e930dbb9d7..0000000000
--- a/include/media/videobuf-vmalloc.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for vmalloc capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks). They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- */
-#ifndef _VIDEOBUF_VMALLOC_H
-#define _VIDEOBUF_VMALLOC_H
-
-#include <media/videobuf-core.h>
-
-/* --------------------------------------------------------------------- */
-
-struct videobuf_vmalloc_memory {
- u32 magic;
-
- void *vaddr;
-
- /* remap_vmalloc_range seems to need to run
- * after mmap() on some cases */
- struct vm_area_struct *vma;
-};
-
-void videobuf_queue_vmalloc_init(struct videobuf_queue *q,
- const struct videobuf_queue_ops *ops,
- struct device *dev,
- spinlock_t *irqlock,
- enum v4l2_buf_type type,
- enum v4l2_field field,
- unsigned int msize,
- void *priv,
- struct mutex *ext_lock);
-
-void *videobuf_to_vmalloc(struct videobuf_buffer *buf);
-
-void videobuf_vmalloc_free(struct videobuf_buffer *buf);
-
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 13:18:06 +0000