From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/include/media/videobuf2-core.h | 167 +++++++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 136 insertions(+), 31 deletions(-)
diff --git a/kernel/include/media/videobuf2-core.h b/kernel/include/media/videobuf2-core.h
index 5a464d6..7ae816d 100644
--- a/kernel/include/media/videobuf2-core.h
+++ b/kernel/include/media/videobuf2-core.h
@@ -17,6 +17,7 @@
#include <linux/poll.h>
#include <linux/dma-buf.h>
#include <linux/bitops.h>
+#include <media/media-request.h>
#define VB2_MAX_FRAME (64)
#define VB2_MAX_PLANES (8)
@@ -53,7 +54,8 @@
* will then be passed as @buf_priv argument to other ops in this
* structure. Additional gfp_flags to use when allocating the
* are also passed to this operation. These flags are from the
- * gfp_flags field of vb2_queue.
+ * gfp_flags field of vb2_queue. The size argument to this function
+ * shall be *page aligned*.
* @put: inform the allocator that the buffer will no longer be used;
* usually will result in the allocator freeing the buffer (if
* no other users of this buffer are present); the @buf_priv
@@ -203,10 +205,9 @@
/**
* enum vb2_buffer_state - current video buffer state.
* @VB2_BUF_STATE_DEQUEUED: buffer under userspace control.
+ * @VB2_BUF_STATE_IN_REQUEST: buffer is queued in media request.
* @VB2_BUF_STATE_PREPARING: buffer is being prepared in videobuf.
- * @VB2_BUF_STATE_PREPARED: buffer prepared in videobuf and by the driver.
* @VB2_BUF_STATE_QUEUED: buffer queued in videobuf, but not in driver.
- * @VB2_BUF_STATE_REQUEUEING: re-queue a buffer to the driver.
* @VB2_BUF_STATE_ACTIVE: buffer queued in driver and possibly used
* in a hardware operation.
* @VB2_BUF_STATE_DONE: buffer returned from driver to videobuf, but
@@ -217,10 +218,9 @@
*/
enum vb2_buffer_state {
VB2_BUF_STATE_DEQUEUED,
+ VB2_BUF_STATE_IN_REQUEST,
VB2_BUF_STATE_PREPARING,
- VB2_BUF_STATE_PREPARED,
VB2_BUF_STATE_QUEUED,
- VB2_BUF_STATE_REQUEUEING,
VB2_BUF_STATE_ACTIVE,
VB2_BUF_STATE_DONE,
VB2_BUF_STATE_ERROR,
@@ -238,6 +238,9 @@
* @num_planes: number of planes in the buffer
* on an internal driver queue.
* @timestamp: frame timestamp in ns.
+ * @request: the request this buffer is associated with.
+ * @req_obj: used to bind this buffer to a request. This
+ * request object has a refcount.
*/
struct vb2_buffer {
struct vb2_queue *vb2_queue;
@@ -246,10 +249,20 @@
unsigned int memory;
unsigned int num_planes;
u64 timestamp;
+ struct media_request *request;
+ struct media_request_object req_obj;
/* private: internal use only
*
* state: current buffer state; do not change
+ * synced: this buffer has been synced for DMA, i.e. the
+ * 'prepare' memop was called. It is cleared again
+ * after the 'finish' memop is called.
+ * prepared: this buffer has been prepared, i.e. the
+ * buf_prepare op was called. It is cleared again
+ * after the 'buf_finish' op is called.
+ * copied_timestamp: the timestamp of this capture buffer was copied
+ * from an output buffer.
* need_cache_sync_on_prepare: when set buffer's ->prepare() function
* performs cache sync/invalidation.
* need_cache_sync_on_finish: when set buffer's ->finish() function
@@ -261,6 +274,9 @@
* vb2_plane: per-plane information; do not change
*/
enum vb2_buffer_state state;
+ unsigned int synced:1;
+ unsigned int prepared:1;
+ unsigned int copied_timestamp:1;
unsigned int need_cache_sync_on_prepare:1;
unsigned int need_cache_sync_on_finish:1;
@@ -288,11 +304,13 @@
u32 cnt_mem_num_users;
u32 cnt_mem_mmap;
+ u32 cnt_buf_out_validate;
u32 cnt_buf_init;
u32 cnt_buf_prepare;
u32 cnt_buf_finish;
u32 cnt_buf_cleanup;
u32 cnt_buf_queue;
+ u32 cnt_buf_request_complete;
/* This counts the number of calls to vb2_buffer_done() */
u32 cnt_buf_done;
@@ -333,6 +351,10 @@
* @wait_finish: reacquire all locks released in the previous callback;
* required to continue operation after sleeping while
* waiting for a new buffer to arrive.
+ * @buf_out_validate: called when the output buffer is prepared or queued
+ * to a request; drivers can use this to validate
+ * userspace-provided information; this is required only
+ * for OUTPUT queues.
* @buf_init: called once after allocating a buffer (in MMAP case)
* or after acquiring a new USERPTR buffer; drivers may
* perform additional buffer-related initialization;
@@ -367,10 +389,10 @@
* driver can return an error if hardware fails, in that
* case all buffers that have been already given by
* the @buf_queue callback are to be returned by the driver
- * by calling vb2_buffer_done() with %VB2_BUF_STATE_QUEUED
- * or %VB2_BUF_STATE_REQUEUEING. If you need a minimum
- * number of buffers before you can start streaming, then
- * set &vb2_queue->min_buffers_needed. If that is non-zero
+ * by calling vb2_buffer_done() with %VB2_BUF_STATE_QUEUED.
+ * If you need a minimum number of buffers before you can
+ * start streaming, then set
+ * &vb2_queue->min_buffers_needed. If that is non-zero
* then @start_streaming won't be called until at least
* that many buffers have been queued up by userspace.
* @stop_streaming: called when 'streaming' state must be disabled; driver
@@ -382,10 +404,15 @@
* @buf_queue: passes buffer vb to the driver; driver may start
* hardware operation on this buffer; driver should give
* the buffer back by calling vb2_buffer_done() function;
- * it is allways called after calling VIDIOC_STREAMON()
+ * it is always called after calling VIDIOC_STREAMON()
* ioctl; might be called before @start_streaming callback
* if user pre-queued buffers before calling
* VIDIOC_STREAMON().
+ * @buf_request_complete: a buffer that was never queued to the driver but is
+ * associated with a queued request was canceled.
+ * The driver will have to mark associated objects in the
+ * request as completed; required if requests are
+ * supported.
*/
struct vb2_ops {
int (*queue_setup)(struct vb2_queue *q,
@@ -395,6 +422,7 @@
void (*wait_prepare)(struct vb2_queue *q);
void (*wait_finish)(struct vb2_queue *q);
+ int (*buf_out_validate)(struct vb2_buffer *vb);
int (*buf_init)(struct vb2_buffer *vb);
int (*buf_prepare)(struct vb2_buffer *vb);
void (*buf_finish)(struct vb2_buffer *vb);
@@ -404,6 +432,8 @@
void (*stop_streaming)(struct vb2_queue *q);
void (*buf_queue)(struct vb2_buffer *vb);
+
+ void (*buf_request_complete)(struct vb2_buffer *vb);
};
/**
@@ -412,6 +442,9 @@
* @verify_planes_array: Verify that a given user space structure contains
* enough planes for the buffer. This is called
* for each dequeued buffer.
+ * @init_buffer: given a &vb2_buffer initialize the extra data after
+ * struct vb2_buffer.
+ * For V4L2 this is a &struct vb2_v4l2_buffer.
* @fill_user_buffer: given a &vb2_buffer fill in the userspace structure.
* For V4L2 this is a &struct v4l2_buffer.
* @fill_vb2_buffer: given a userspace structure, fill in the &vb2_buffer.
@@ -422,9 +455,9 @@
*/
struct vb2_buf_ops {
int (*verify_planes_array)(struct vb2_buffer *vb, const void *pb);
+ void (*init_buffer)(struct vb2_buffer *vb);
void (*fill_user_buffer)(struct vb2_buffer *vb, void *pb);
- int (*fill_vb2_buffer)(struct vb2_buffer *vb, const void *pb,
- struct vb2_plane *planes);
+ int (*fill_vb2_buffer)(struct vb2_buffer *vb, struct vb2_plane *planes);
void (*copy_timestamp)(struct vb2_buffer *vb, const void *pb);
};
@@ -455,6 +488,15 @@
* @quirk_poll_must_check_waiting_for_buffers: Return %EPOLLERR at poll when QBUF
* has not been called. This is a vb1 idiom that has been adopted
* also by vb2.
+ * @supports_requests: this queue supports the Request API.
+ * @requires_requests: this queue requires the Request API. If this is set to 1,
+ * then supports_requests must be set to 1 as well.
+ * @uses_qbuf: qbuf was used directly for this queue. Set to 1 the first
+ * time this is called. Set to 0 when the queue is canceled.
+ * If this is 1, then you cannot queue buffers from a request.
+ * @uses_requests: requests are used for this queue. Set to 1 the first time
+ * a request is queued. Set to 0 when the queue is canceled.
+ * If this is 1, then you cannot queue buffers directly.
* @allow_cache_hints: when set user-space can pass cache management hints in
* order to skip cache flush/invalidation on ->prepare() or/and
* ->finish().
@@ -472,10 +514,15 @@
* @buf_ops: callbacks to deliver buffer information.
* between user-space and kernel-space.
* @drv_priv: driver private data.
+ * @subsystem_flags: Flags specific to the subsystem (V4L2/DVB/etc.). Not used
+ * by the vb2 core.
* @buf_struct_size: size of the driver-specific buffer structure;
* "0" indicates the driver doesn't want to use a custom buffer
- * structure type. for example, ``sizeof(struct vb2_v4l2_buffer)``
- * will be used for v4l2.
+ * structure type. In that case a subsystem-specific struct
+ * will be used (in the case of V4L2 that is
+ * ``sizeof(struct vb2_v4l2_buffer)``). The first field of the
+ * driver-specific buffer structure must be the subsystem-specific
+ * struct (vb2_v4l2_buffer in the case of V4L2).
* @timestamp_flags: Timestamp flags; ``V4L2_BUF_FLAG_TIMESTAMP_*`` and
* ``V4L2_BUF_FLAG_TSTAMP_SRC_*``
* @gfp_flags: additional gfp flags used when allocating the buffers.
@@ -514,17 +561,23 @@
* when a buffer with the %V4L2_BUF_FLAG_LAST is dequeued.
* @fileio: file io emulator internal data, used only if emulator is active
* @threadio: thread io internal data, used only if thread is active
+ * @name: queue name, used for logging purpose. Initialized automatically
+ * if left empty by drivers.
*/
struct vb2_queue {
unsigned int type;
unsigned int io_modes;
struct device *dev;
unsigned long dma_attrs;
- unsigned bidirectional:1;
- unsigned fileio_read_once:1;
- unsigned fileio_write_immediately:1;
- unsigned allow_zero_bytesused:1;
- unsigned quirk_poll_must_check_waiting_for_buffers:1;
+ unsigned int bidirectional:1;
+ unsigned int fileio_read_once:1;
+ unsigned int fileio_write_immediately:1;
+ unsigned int allow_zero_bytesused:1;
+ unsigned int quirk_poll_must_check_waiting_for_buffers:1;
+ unsigned int supports_requests:1;
+ unsigned int requires_requests:1;
+ unsigned int uses_qbuf:1;
+ unsigned int uses_requests:1;
unsigned int allow_cache_hints:1;
struct mutex *lock;
@@ -535,6 +588,7 @@
const struct vb2_buf_ops *buf_ops;
void *drv_priv;
+ u32 subsystem_flags;
unsigned int buf_struct_size;
u32 timestamp_flags;
gfp_t gfp_flags;
@@ -569,6 +623,8 @@
struct vb2_fileio_data *fileio;
struct vb2_threadio_data *threadio;
+
+ char name[32];
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
@@ -626,9 +682,7 @@
* @state: state of the buffer, as defined by &enum vb2_buffer_state.
* Either %VB2_BUF_STATE_DONE if the operation finished
* successfully, %VB2_BUF_STATE_ERROR if the operation finished
- * with an error or any of %VB2_BUF_STATE_QUEUED or
- * %VB2_BUF_STATE_REQUEUEING if the driver wants to
- * requeue buffers (see below).
+ * with an error or %VB2_BUF_STATE_QUEUED.
*
* This function should be called by the driver after a hardware operation on
* a buffer is finished and the buffer may be returned to userspace. The driver
@@ -639,12 +693,7 @@
* While streaming a buffer can only be returned in state DONE or ERROR.
* The &vb2_ops->start_streaming op can also return them in case the DMA engine
* cannot be started for some reason. In that case the buffers should be
- * returned with state QUEUED or REQUEUEING to put them back into the queue.
- *
- * %VB2_BUF_STATE_REQUEUEING is like %VB2_BUF_STATE_QUEUED, but it also calls
- * &vb2_ops->buf_queue to queue buffers back to the driver. Note that calling
- * vb2_buffer_done(..., VB2_BUF_STATE_REQUEUEING) from interrupt context will
- * result in &vb2_ops->buf_queue being called in interrupt context as well.
+ * returned with state QUEUED to put them back into the queue.
*/
void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state);
@@ -719,7 +768,7 @@
* Return: returns zero on success; an error code otherwise.
*/
int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
- unsigned int *count);
+ unsigned int *count);
/**
* vb2_core_create_bufs() - Allocate buffers and any required auxiliary structs
@@ -742,7 +791,8 @@
* Return: returns zero on success; an error code otherwise.
*/
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
- unsigned int *count, unsigned int requested_planes,
+ unsigned int *count,
+ unsigned int requested_planes,
const unsigned int requested_sizes[]);
/**
@@ -774,12 +824,17 @@
* @index: id number of the buffer
* @pb: buffer structure passed from userspace to
* v4l2_ioctl_ops->vidioc_qbuf handler in driver
+ * @req: pointer to &struct media_request, may be NULL.
*
* Videobuf2 core helper to implement VIDIOC_QBUF() operation. It is called
* internally by VB2 by an API-specific handler, like ``videobuf2-v4l2.h``.
*
* This function:
*
+ * #) If @req is non-NULL, then the buffer will be bound to this
+ * media request and it returns. The buffer will be prepared and
+ * queued to the driver (i.e. the next two steps) when the request
+ * itself is queued.
* #) if necessary, calls &vb2_ops->buf_prepare callback in the driver
* (if provided), in which driver-specific buffer initialization can
* be performed;
@@ -788,7 +843,8 @@
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb);
+int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+ struct media_request *req);
/**
* vb2_core_dqbuf() - Dequeue a buffer to the userspace
@@ -1121,6 +1177,22 @@
return 0;
}
+#if defined(CONFIG_ARCH_ROCKCHIP) && IS_ENABLED(CONFIG_USB_F_UVC)
+/**
+ * vb2_plane_data_offset() - return plane data_offset in bytes.
+ * @vb: pointer to &struct vb2_buffer to which the plane in
+ * question belongs to.
+ * @plane_no: plane number for which size should be returned.
+ */
+static inline unsigned long
+vb2_plane_data_offset(struct vb2_buffer *vb, unsigned int plane_no)
+{
+ if (plane_no < vb->num_planes)
+ return vb->planes[plane_no].data_offset;
+ return 0;
+}
+#endif
+
/**
* vb2_start_streaming_called() - return streaming status of driver.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
@@ -1137,6 +1209,24 @@
static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q)
{
q->last_buffer_dequeued = false;
+}
+
+/**
+ * vb2_get_buffer() - get a buffer from a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @index: buffer index
+ *
+ * This function obtains a buffer from a queue, by its index.
+ * Keep in mind that there is no refcounting involved in this
+ * operation, so the buffer lifetime should be taken into
+ * consideration.
+ */
+static inline struct vb2_buffer *vb2_get_buffer(struct vb2_queue *q,
+ unsigned int index)
+{
+ if (index < q->num_buffers)
+ return q->bufs[index];
+ return NULL;
}
/*
@@ -1165,4 +1255,19 @@
*/
int vb2_verify_memory_type(struct vb2_queue *q,
enum vb2_memory memory, unsigned int type);
+
+/**
+ * vb2_request_object_is_buffer() - return true if the object is a buffer
+ *
+ * @obj: the request object.
+ */
+bool vb2_request_object_is_buffer(struct media_request_object *obj);
+
+/**
+ * vb2_request_buffer_cnt() - return the number of buffers in the request
+ *
+ * @req: the request.
+ */
+unsigned int vb2_request_buffer_cnt(struct media_request *req);
+
#endif /* _MEDIA_VIDEOBUF2_CORE_H */
--
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