diff options
Diffstat (limited to 'drivers/media/usb/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/usb/uvc/uvcvideo.h | 719 |
1 files changed, 404 insertions, 315 deletions
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 9e35982d099a..ed7bad31f75c 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _USB_VIDEO_H_ #define _USB_VIDEO_H_ @@ -5,17 +6,19 @@ #error "The uvcvideo.h header is deprecated, use linux/uvcvideo.h instead." #endif /* __KERNEL__ */ +#include <linux/atomic.h> #include <linux/kernel.h> #include <linux/poll.h> #include <linux/usb.h> #include <linux/usb/video.h> #include <linux/uvcvideo.h> #include <linux/videodev2.h> +#include <linux/workqueue.h> #include <media/media-device.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-fh.h> -#include <media/videobuf2-core.h> +#include <media/videobuf2-v4l2.h> /* -------------------------------------------------------------------------- * UVC constants @@ -35,75 +38,10 @@ (UVC_ENTITY_IS_TERM(entity) && \ ((entity)->type & 0x8000) == UVC_TERM_OUTPUT) +#define UVC_EXT_GPIO_UNIT 0x7ffe +#define UVC_EXT_GPIO_UNIT_ID 0x100 -/* ------------------------------------------------------------------------ - * GUIDs - */ -#define UVC_GUID_UVC_CAMERA \ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} -#define UVC_GUID_UVC_OUTPUT \ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02} -#define UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT \ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03} -#define UVC_GUID_UVC_PROCESSING \ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01} -#define UVC_GUID_UVC_SELECTOR \ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02} - -#define UVC_GUID_FORMAT_MJPEG \ - { 'M', 'J', 'P', 'G', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_YUY2 \ - { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_YUY2_ISIGHT \ - { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0x00, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_NV12 \ - { 'N', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_YV12 \ - { 'Y', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_I420 \ - { 'I', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_UYVY \ - { 'U', 'Y', 'V', 'Y', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_Y800 \ - { 'Y', '8', '0', '0', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_Y8 \ - { 'Y', '8', ' ', ' ', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_Y10 \ - { 'Y', '1', '0', ' ', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_Y12 \ - { 'Y', '1', '2', ' ', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_Y16 \ - { 'Y', '1', '6', ' ', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_BY8 \ - { 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_RGBP \ - { 'R', 'G', 'B', 'P', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} -#define UVC_GUID_FORMAT_M420 \ - { 'M', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} - -#define UVC_GUID_FORMAT_H264 \ - { 'H', '2', '6', '4', 0x00, 0x00, 0x10, 0x00, \ - 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_INVALID_ENTITY_ID 0xffff /* ------------------------------------------------------------------------ * Driver specific constants. @@ -115,12 +53,8 @@ #define UVC_URBS 5 /* Maximum number of packets per URB. */ #define UVC_MAX_PACKETS 32 -/* Maximum number of video buffers. */ -#define UVC_MAX_VIDEO_BUFFERS 32 -/* Maximum status buffer size in bytes of interrupt URB. */ -#define UVC_MAX_STATUS_SIZE 16 -#define UVC_CTRL_CONTROL_TIMEOUT 300 +#define UVC_CTRL_CONTROL_TIMEOUT 5000 #define UVC_CTRL_STREAMING_TIMEOUT 5000 /* Maximum allowed number of control mappings per device */ @@ -137,6 +71,15 @@ #define UVC_QUIRK_FIX_BANDWIDTH 0x00000080 #define UVC_QUIRK_PROBE_DEF 0x00000100 #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200 +#define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400 +#define UVC_QUIRK_FORCE_Y8 0x00000800 +#define UVC_QUIRK_FORCE_BPP 0x00001000 +#define UVC_QUIRK_WAKE_AUTOSUSPEND 0x00002000 +#define UVC_QUIRK_NO_RESET_RESUME 0x00004000 +#define UVC_QUIRK_DISABLE_AUTOSUSPEND 0x00008000 +#define UVC_QUIRK_INVALID_DEVICE_SOF 0x00010000 +#define UVC_QUIRK_MJPEG_NO_EOF 0x00020000 +#define UVC_QUIRK_MSXU_META 0x00040000 /* Format flags */ #define UVC_FMT_FLAG_COMPRESSED 0x00000001 @@ -146,71 +89,83 @@ * Structures. */ +struct gpio_desc; +struct sg_table; +struct uvc_control; struct uvc_device; +struct uvc_video_chain; -/* TODO: Put the most frequently accessed fields at the beginning of +/* + * TODO: Put the most frequently accessed fields at the beginning of * structures to maximize cache efficiency. */ struct uvc_control_info { struct list_head mappings; - __u8 entity[16]; - __u8 index; /* Bit index in bmControls */ - __u8 selector; + u8 entity[16]; + u8 index; /* Bit index in bmControls */ + u8 selector; - __u16 size; - __u32 flags; + u16 size; + u32 flags; }; struct uvc_control_mapping { struct list_head list; struct list_head ev_subs; - __u32 id; - __u8 name[32]; - __u8 entity[16]; - __u8 selector; + u32 id; + char *name; + u8 entity[16]; + u8 selector; + + /* + * Size of the control data in the payload of the UVC control GET and + * SET requests, expressed in bits. + */ + u8 size; - __u8 size; - __u8 offset; + u8 offset; enum v4l2_ctrl_type v4l2_type; - __u32 data_type; + u32 data_type; + + const u32 *menu_mapping; + const char (*menu_names)[UVC_MENU_NAME_LEN]; + unsigned long menu_mask; - struct uvc_menu_info *menu_info; - __u32 menu_count; + u32 master_id; + s32 master_manual; + u32 slave_ids[2]; - __u32 master_id; - __s32 master_manual; - __u32 slave_ids[2]; + bool disabled; - __s32 (*get) (struct uvc_control_mapping *mapping, __u8 query, - const __u8 *data); - void (*set) (struct uvc_control_mapping *mapping, __s32 value, - __u8 *data); + const struct uvc_control_mapping *(*filter_mapping) + (struct uvc_video_chain *chain, + struct uvc_control *ctrl); + int (*get)(struct uvc_control_mapping *mapping, u8 query, + const void *uvc_in, size_t v4l2_size, void *v4l2_out); + int (*set)(struct uvc_control_mapping *mapping, size_t v4l2_size, + const void *v4l2_in, void *uvc_out); }; struct uvc_control { struct uvc_entity *entity; struct uvc_control_info info; - __u8 index; /* Used to match the uvc_control entry with a - uvc_control_info. */ - __u8 dirty:1, - loaded:1, - modified:1, - cached:1, - initialized:1; + u8 index; /* Used to match the uvc_control entry with a uvc_control_info. */ + u8 dirty:1, + loaded:1, + modified:1, + cached:1, + initialized:1; - __u8 *uvc_data; -}; + u8 *uvc_data; -struct uvc_format_desc { - char *name; - __u8 guid[16]; - __u32 fcc; + struct uvc_fh *handle; /* File handle that last changed the control. */ }; -/* The term 'entity' refers to both UVC units and UVC terminals. +/* + * The term 'entity' refers to both UVC units and UVC terminals. * * The type field is either the terminal type (wTerminalType in the terminal * descriptor), or the unit type (bDescriptorSubtype in the unit descriptor). @@ -229,13 +184,18 @@ struct uvc_format_desc { struct uvc_entity { struct list_head list; /* Entity as part of a UVC device. */ - struct list_head chain; /* Entity as part of a video device - * chain. */ + struct list_head chain; /* Entity as part of a video device chain. */ unsigned int flags; - __u8 id; - __u16 type; + /* + * Entities exposed by the UVC device use IDs 0-255, extra entities + * implemented by the driver (such as the GPIO entity) use IDs 256 and + * up. + */ + u16 id; + u16 type; char name[64]; + u8 guid[16]; /* Media controller-related fields. */ struct video_device *vdev; @@ -246,87 +206,99 @@ struct uvc_entity { union { struct { - __u16 wObjectiveFocalLengthMin; - __u16 wObjectiveFocalLengthMax; - __u16 wOcularFocalLength; - __u8 bControlSize; - __u8 *bmControls; + u16 wObjectiveFocalLengthMin; + u16 wObjectiveFocalLengthMax; + u16 wOcularFocalLength; + u8 bControlSize; + u8 *bmControls; } camera; struct { - __u8 bControlSize; - __u8 *bmControls; - __u8 bTransportModeSize; - __u8 *bmTransportModes; + u8 bControlSize; + u8 *bmControls; + u8 bTransportModeSize; + u8 *bmTransportModes; } media; struct { } output; struct { - __u16 wMaxMultiplier; - __u8 bControlSize; - __u8 *bmControls; - __u8 bmVideoStandards; + u16 wMaxMultiplier; + u8 bControlSize; + u8 *bmControls; + u8 bmVideoStandards; } processing; struct { } selector; struct { - __u8 guidExtensionCode[16]; - __u8 bNumControls; - __u8 bControlSize; - __u8 *bmControls; - __u8 *bmControlsType; + u8 bNumControls; + u8 bControlSize; + u8 *bmControls; + u8 *bmControlsType; } extension; + + struct { + u8 bControlSize; + u8 *bmControls; + struct gpio_desc *gpio_privacy; + int irq; + bool initialized; + } gpio; }; - __u8 bNrInPins; - __u8 *baSourceID; + u8 bNrInPins; + u8 *baSourceID; + + int (*get_info)(struct uvc_device *dev, struct uvc_entity *entity, + u8 cs, u8 *caps); + int (*get_cur)(struct uvc_device *dev, struct uvc_entity *entity, + u8 cs, void *data, u16 size); unsigned int ncontrols; struct uvc_control *controls; }; struct uvc_frame { - __u8 bFrameIndex; - __u8 bmCapabilities; - __u16 wWidth; - __u16 wHeight; - __u32 dwMinBitRate; - __u32 dwMaxBitRate; - __u32 dwMaxVideoFrameBufferSize; - __u8 bFrameIntervalType; - __u32 dwDefaultFrameInterval; - __u32 *dwFrameInterval; + u8 bFrameIndex; + u8 bmCapabilities; + u16 wWidth; + u16 wHeight; + u32 dwMinBitRate; + u32 dwMaxBitRate; + u32 dwMaxVideoFrameBufferSize; + u8 bFrameIntervalType; + u32 dwDefaultFrameInterval; + const u32 *dwFrameInterval; }; struct uvc_format { - __u8 type; - __u8 index; - __u8 bpp; - __u8 colorspace; - __u32 fcc; - __u32 flags; - - char name[32]; + u8 type; + u8 index; + u8 bpp; + enum v4l2_colorspace colorspace; + enum v4l2_xfer_func xfer_func; + enum v4l2_ycbcr_encoding ycbcr_enc; + u32 fcc; + u32 flags; unsigned int nframes; - struct uvc_frame *frame; + const struct uvc_frame *frames; }; struct uvc_streaming_header { - __u8 bNumFormats; - __u8 bEndpointAddress; - __u8 bTerminalLink; - __u8 bControlSize; - __u8 *bmaControls; + u8 bNumFormats; + u8 bEndpointAddress; + u8 bTerminalLink; + u8 bControlSize; + u8 *bmaControls; /* The following fields are used by input headers only. */ - __u8 bmInfo; - __u8 bStillCaptureMethod; - __u8 bTriggerSupport; - __u8 bTriggerUsage; + u8 bmInfo; + u8 bStillCaptureMethod; + u8 bTriggerSupport; + u8 bTriggerUsage; }; enum uvc_buffer_state { @@ -339,7 +311,7 @@ enum uvc_buffer_state { }; struct uvc_buffer { - struct vb2_buffer buf; + struct vb2_v4l2_buffer buf; struct list_head queue; enum uvc_buffer_state state; @@ -350,14 +322,20 @@ struct uvc_buffer { unsigned int bytesused; u32 pts; + + /* Asynchronous buffer handling. */ + struct kref ref; }; #define UVC_QUEUE_DISCONNECTED (1 << 0) -#define UVC_QUEUE_DROP_CORRUPTED (1 << 1) struct uvc_video_queue { + struct video_device vdev; struct vb2_queue queue; - struct mutex mutex; /* Protects queue */ + struct mutex mutex; /* + * Serializes vb2_queue and + * fops + */ unsigned int flags; unsigned int buf_used; @@ -374,10 +352,15 @@ struct uvc_video_chain { struct uvc_entity *processing; /* Processing unit */ struct uvc_entity *selector; /* Selector unit */ - struct mutex ctrl_mutex; /* Protects ctrl.info */ + struct mutex ctrl_mutex; /* + * Protects ctrl.info, + * ctrl.handle and + * uvc_fh.pending_async_ctrls + */ struct v4l2_prio_state prio; /* V4L2 priority state */ u32 caps; /* V4L2 chain-wide caps */ + u8 ctrl_class_bitmap; /* Bitmap of valid classes */ }; struct uvc_stats_frame { @@ -403,8 +386,8 @@ struct uvc_stats_frame { }; struct uvc_stats_stream { - struct timespec start_ts; /* Stream start timestamp */ - struct timespec stop_ts; /* Stream stop timestamp */ + ktime_t start_ts; /* Stream start timestamp */ + ktime_t stop_ts; /* Stream stop timestamp */ unsigned int nb_frames; /* Number of frames */ @@ -425,54 +408,95 @@ struct uvc_stats_stream { unsigned int max_sof; /* Maximum STC.SOF value */ }; +#define UVC_METADATA_BUF_SIZE 10240 + +/** + * struct uvc_copy_op: Context structure to schedule asynchronous memcpy + * + * @buf: active buf object for this operation + * @dst: copy destination address + * @src: copy source address + * @len: copy length + */ +struct uvc_copy_op { + struct uvc_buffer *buf; + void *dst; + const __u8 *src; + size_t len; +}; + +/** + * struct uvc_urb - URB context management structure + * + * @urb: the URB described by this context structure + * @stream: UVC streaming context + * @buffer: memory storage for the URB + * @dma: Allocated DMA handle + * @sgt: sgt_table with the urb locations in memory + * @async_operations: counter to indicate the number of copy operations + * @copy_operations: work descriptors for asynchronous copy operations + * @work: work queue entry for asynchronous decode + */ +struct uvc_urb { + struct urb *urb; + struct uvc_streaming *stream; + + char *buffer; + dma_addr_t dma; + struct sg_table *sgt; + + unsigned int async_operations; + struct uvc_copy_op copy_operations[UVC_MAX_PACKETS]; + struct work_struct work; +}; + struct uvc_streaming { struct list_head list; struct uvc_device *dev; - struct video_device *vdev; struct uvc_video_chain *chain; atomic_t active; struct usb_interface *intf; int intfnum; - __u16 maxpsize; + u32 maxpsize; struct uvc_streaming_header header; enum v4l2_buf_type type; unsigned int nformats; - struct uvc_format *format; + const struct uvc_format *formats; struct uvc_streaming_control ctrl; - struct uvc_format *def_format; - struct uvc_format *cur_format; - struct uvc_frame *cur_frame; - /* Protect access to ctrl, cur_format, cur_frame and hardware video - * probe control. - */ - struct mutex mutex; + const struct uvc_format *def_format; + const struct uvc_format *cur_format; + const struct uvc_frame *cur_frame; /* Buffers queue. */ unsigned int frozen : 1; struct uvc_video_queue queue; - void (*decode) (struct urb *urb, struct uvc_streaming *video, - struct uvc_buffer *buf); + struct workqueue_struct *async_wq; + void (*decode)(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, + struct uvc_buffer *meta_buf); + + struct { + struct uvc_video_queue queue; + u32 format; + } meta; /* Context data used by the bulk completion handler. */ struct { - __u8 header[256]; + u8 header[256]; unsigned int header_size; int skip_payload; - __u32 payload_size; - __u32 max_payload_size; + u32 payload_size; + u32 max_payload_size; } bulk; - struct urb *urb[UVC_URBS]; - char *urb_buffer[UVC_URBS]; - dma_addr_t urb_dma[UVC_URBS]; + struct uvc_urb uvc_urb[UVC_URBS]; unsigned int urb_size; - __u32 sequence; - __u8 last_fid; + u32 sequence; + u8 last_fid; /* debugfs */ struct dentry *debugfs_dir; @@ -486,36 +510,82 @@ struct uvc_streaming { struct uvc_clock_sample { u32 dev_stc; u16 dev_sof; - struct timespec host_ts; u16 host_sof; + ktime_t host_time; } *samples; unsigned int head; unsigned int count; unsigned int size; + unsigned int last_sof_overflow; u16 last_sof; u16 sof_offset; + u8 last_scr[6]; + spinlock_t lock; } clock; }; -enum uvc_device_state { - UVC_DEV_DISCONNECTED = 1, +#define for_each_uvc_urb(uvc_urb, uvc_streaming) \ + for ((uvc_urb) = &(uvc_streaming)->uvc_urb[0]; \ + (uvc_urb) < &(uvc_streaming)->uvc_urb[UVC_URBS]; \ + ++(uvc_urb)) + +static inline u32 uvc_urb_index(const struct uvc_urb *uvc_urb) +{ + return uvc_urb - &uvc_urb->stream->uvc_urb[0]; +} + +struct uvc_device_info { + u32 quirks; + u32 meta_format; + u16 uvc_version; }; +struct uvc_rect { + u16 top; + u16 left; + u16 bottom; + u16 right; +} __packed; + +struct uvc_status_streaming { + u8 button; +} __packed; + +struct uvc_status_control { + u8 bSelector; + u8 bAttribute; + u8 bValue[11]; +} __packed; + +struct uvc_status { + u8 bStatusType; + u8 bOriginator; + u8 bEvent; + union { + struct uvc_status_control control; + struct uvc_status_streaming streaming; + }; +} __packed; + +#define UVC_MAX_META_DATA_FORMATS 3 + struct uvc_device { struct usb_device *udev; struct usb_interface *intf; unsigned long warnings; - __u32 quirks; + u32 quirks; int intfnum; char name[32]; - enum uvc_device_state state; - struct mutex lock; /* Protects users */ - unsigned int users; + const struct uvc_device_info *info; + + u32 meta_formats[UVC_MAX_META_DATA_FORMATS]; + unsigned int nmeta_formats; + atomic_t nmappings; /* Video control interface */ @@ -523,57 +593,66 @@ struct uvc_device { struct media_device mdev; #endif struct v4l2_device vdev; - __u16 uvc_version; - __u32 clock_frequency; + u16 uvc_version; + u32 clock_frequency; struct list_head entities; struct list_head chains; /* Video Streaming interfaces */ struct list_head streams; - atomic_t nstreams; + struct kref ref; /* Status Interrupt Endpoint */ struct usb_host_endpoint *int_ep; struct urb *int_urb; - __u8 *status; + struct uvc_status *status; + struct mutex status_lock; /* Protects status_users */ + unsigned int status_users; + bool flush_status; + struct input_dev *input; char input_phys[64]; -}; -enum uvc_handle_state { - UVC_HANDLE_PASSIVE = 0, - UVC_HANDLE_ACTIVE = 1, + struct uvc_ctrl_work { + struct work_struct work; + struct urb *urb; + struct uvc_video_chain *chain; + struct uvc_control *ctrl; + const void *data; + } async_ctrl; + + struct uvc_entity *gpio_unit; }; struct uvc_fh { struct v4l2_fh vfh; struct uvc_video_chain *chain; struct uvc_streaming *stream; - enum uvc_handle_state state; + unsigned int pending_async_ctrls; }; -struct uvc_driver { - struct usb_driver driver; -}; +static inline struct uvc_fh *to_uvc_fh(struct file *filp) +{ + return container_of(file_to_v4l2_fh(filp), struct uvc_fh, vfh); +} /* ------------------------------------------------------------------------ * Debugging, printing and logging */ -#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) -#define UVC_TRACE_VIDEO (1 << 10) -#define UVC_TRACE_STATS (1 << 11) -#define UVC_TRACE_CLOCK (1 << 12) +#define UVC_DBG_PROBE (1 << 0) +#define UVC_DBG_DESCR (1 << 1) +#define UVC_DBG_CONTROL (1 << 2) +#define UVC_DBG_FORMAT (1 << 3) +#define UVC_DBG_CAPTURE (1 << 4) +#define UVC_DBG_CALLS (1 << 5) +#define UVC_DBG_FRAME (1 << 7) +#define UVC_DBG_SUSPEND (1 << 8) +#define UVC_DBG_STATUS (1 << 9) +#define UVC_DBG_VIDEO (1 << 10) +#define UVC_DBG_STATS (1 << 11) +#define UVC_DBG_CLOCK (1 << 12) #define UVC_WARN_MINMAX 0 #define UVC_WARN_PROBE_DEF 1 @@ -581,142 +660,152 @@ struct uvc_driver { extern unsigned int uvc_clock_param; extern unsigned int uvc_no_drop_param; -extern unsigned int uvc_trace_param; +extern unsigned int uvc_dbg_param; extern unsigned int uvc_timeout_param; - -#define uvc_trace(flag, msg...) \ - do { \ - if (uvc_trace_param & flag) \ - printk(KERN_DEBUG "uvcvideo: " msg); \ - } while (0) - -#define uvc_warn_once(dev, warn, msg...) \ - do { \ - if (!test_and_set_bit(warn, &dev->warnings)) \ - printk(KERN_INFO "uvcvideo: " msg); \ - } while (0) - -#define uvc_printk(level, msg...) \ - printk(level "uvcvideo: " msg) +extern unsigned int uvc_hw_timestamps_param; + +#define uvc_dbg(_dev, flag, fmt, ...) \ +do { \ + if (uvc_dbg_param & UVC_DBG_##flag) \ + dev_printk(KERN_DEBUG, &(_dev)->intf->dev, fmt, \ + ##__VA_ARGS__); \ +} while (0) + +#define uvc_dbg_cont(flag, fmt, ...) \ +do { \ + if (uvc_dbg_param & UVC_DBG_##flag) \ + pr_cont(fmt, ##__VA_ARGS__); \ +} while (0) + +#define uvc_warn_once(_dev, warn, fmt, ...) \ +do { \ + if (!test_and_set_bit(warn, &(_dev)->warnings)) \ + dev_info(&(_dev)->intf->dev, fmt, ##__VA_ARGS__); \ +} while (0) /* -------------------------------------------------------------------------- * Internal functions. */ -/* Core driver */ -extern struct uvc_driver uvc_driver; - -extern struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id); +struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id); /* Video buffers queue management. */ -extern int uvc_queue_init(struct uvc_video_queue *queue, - enum v4l2_buf_type type, int drop_corrupted); -extern int uvc_alloc_buffers(struct uvc_video_queue *queue, - struct v4l2_requestbuffers *rb); -extern void uvc_free_buffers(struct uvc_video_queue *queue); -extern int uvc_query_buffer(struct uvc_video_queue *queue, - struct v4l2_buffer *v4l2_buf); -extern int uvc_queue_buffer(struct uvc_video_queue *queue, - struct v4l2_buffer *v4l2_buf); -extern int uvc_dequeue_buffer(struct uvc_video_queue *queue, - struct v4l2_buffer *v4l2_buf, int nonblocking); -extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable); -extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect); -extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, - struct uvc_buffer *buf); -extern int uvc_queue_mmap(struct uvc_video_queue *queue, - struct vm_area_struct *vma); -extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue, - struct file *file, poll_table *wait); -#ifndef CONFIG_MMU -extern unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue, - unsigned long pgoff); -#endif -extern int uvc_queue_allocated(struct uvc_video_queue *queue); +int uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type); +void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect); +struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, + struct uvc_buffer *buf); +struct uvc_buffer *uvc_queue_get_current_buffer(struct uvc_video_queue *queue); +void uvc_queue_buffer_release(struct uvc_buffer *buf); static inline int uvc_queue_streaming(struct uvc_video_queue *queue) { return vb2_is_streaming(&queue->queue); } +static inline struct uvc_streaming * +uvc_queue_to_stream(struct uvc_video_queue *queue) +{ + return container_of(queue, struct uvc_streaming, queue); +} + /* V4L2 interface */ +extern const struct v4l2_ioctl_ops uvc_ioctl_ops; extern const struct v4l2_file_operations uvc_fops; /* Media controller */ -extern int uvc_mc_register_entities(struct uvc_video_chain *chain); -extern void uvc_mc_cleanup_entity(struct uvc_entity *entity); +int uvc_mc_register_entities(struct uvc_video_chain *chain); +void uvc_mc_cleanup_entity(struct uvc_entity *entity); /* Video */ -extern int uvc_video_init(struct uvc_streaming *stream); -extern int uvc_video_suspend(struct uvc_streaming *stream); -extern int uvc_video_resume(struct uvc_streaming *stream, int reset); -extern int uvc_video_enable(struct uvc_streaming *stream, int enable); -extern int uvc_probe_video(struct uvc_streaming *stream, - struct uvc_streaming_control *probe); -extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, - __u8 intfnum, __u8 cs, void *data, __u16 size); +int uvc_video_init(struct uvc_streaming *stream); +int uvc_video_suspend(struct uvc_streaming *stream); +int uvc_video_resume(struct uvc_streaming *stream, int reset); +int uvc_video_start_streaming(struct uvc_streaming *stream); +void uvc_video_stop_streaming(struct uvc_streaming *stream); +int uvc_probe_video(struct uvc_streaming *stream, + struct uvc_streaming_control *probe); +int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8 unit, + u8 intfnum, u8 cs, void *data, u16 size); void uvc_video_clock_update(struct uvc_streaming *stream, - struct v4l2_buffer *v4l2_buf, + struct vb2_v4l2_buffer *vbuf, struct uvc_buffer *buf); +int uvc_meta_init(struct uvc_device *dev); +int uvc_meta_register(struct uvc_streaming *stream); + +int uvc_register_video_device(struct uvc_device *dev, + struct uvc_streaming *stream, + struct uvc_video_queue *queue, + enum v4l2_buf_type type, + const struct v4l2_file_operations *fops, + const struct v4l2_ioctl_ops *ioctl_ops); /* Status */ -extern int uvc_status_init(struct uvc_device *dev); -extern void uvc_status_cleanup(struct uvc_device *dev); -extern int uvc_status_start(struct uvc_device *dev, gfp_t flags); -extern void uvc_status_stop(struct uvc_device *dev); +int uvc_status_init(struct uvc_device *dev); +void uvc_status_unregister(struct uvc_device *dev); +void uvc_status_cleanup(struct uvc_device *dev); +int uvc_status_resume(struct uvc_device *dev); +void uvc_status_suspend(struct uvc_device *dev); +int uvc_status_get(struct uvc_device *dev); +void uvc_status_put(struct uvc_device *dev); + +/* PM */ +int uvc_pm_get(struct uvc_device *dev); +void uvc_pm_put(struct uvc_device *dev); /* Controls */ extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops; -extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, - struct v4l2_queryctrl *v4l2_ctrl); -extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain, - struct v4l2_querymenu *query_menu); - -extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain, - const struct uvc_control_mapping *mapping); -extern int uvc_ctrl_init_device(struct uvc_device *dev); -extern void uvc_ctrl_cleanup_device(struct uvc_device *dev); -extern int uvc_ctrl_resume_device(struct uvc_device *dev); - -extern int uvc_ctrl_begin(struct uvc_video_chain *chain); -extern int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback, - const struct v4l2_ext_control *xctrls, - unsigned int xctrls_count); +int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, + struct v4l2_query_ext_ctrl *v4l2_ctrl); +int uvc_query_v4l2_menu(struct uvc_video_chain *chain, + struct v4l2_querymenu *query_menu); + +int uvc_ctrl_add_mapping(struct uvc_video_chain *chain, + const struct uvc_control_mapping *mapping); +int uvc_ctrl_init_device(struct uvc_device *dev); +void uvc_ctrl_cleanup_device(struct uvc_device *dev); +int uvc_ctrl_restore_values(struct uvc_device *dev); +bool uvc_ctrl_status_event_async(struct urb *urb, struct uvc_video_chain *chain, + struct uvc_control *ctrl, const u8 *data); +void uvc_ctrl_status_event(struct uvc_video_chain *chain, + struct uvc_control *ctrl, const u8 *data); + +int uvc_ctrl_begin(struct uvc_video_chain *chain); +int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback, + struct v4l2_ext_controls *ctrls); static inline int uvc_ctrl_commit(struct uvc_fh *handle, - const struct v4l2_ext_control *xctrls, - unsigned int xctrls_count) + struct v4l2_ext_controls *ctrls) { - return __uvc_ctrl_commit(handle, 0, xctrls, xctrls_count); + return __uvc_ctrl_commit(handle, 0, ctrls); } static inline int uvc_ctrl_rollback(struct uvc_fh *handle) { - return __uvc_ctrl_commit(handle, 1, NULL, 0); + return __uvc_ctrl_commit(handle, 1, NULL); } -extern int uvc_ctrl_get(struct uvc_video_chain *chain, - struct v4l2_ext_control *xctrl); -extern int uvc_ctrl_set(struct uvc_video_chain *chain, - struct v4l2_ext_control *xctrl); +int uvc_ctrl_get(struct uvc_video_chain *chain, u32 which, + struct v4l2_ext_control *xctrl); +int uvc_ctrl_set(struct uvc_fh *handle, struct v4l2_ext_control *xctrl); +int uvc_ctrl_is_accessible(struct uvc_video_chain *chain, u32 v4l2_id, + const struct v4l2_ext_controls *ctrls, + unsigned long ioctl); -extern int uvc_xu_ctrl_query(struct uvc_video_chain *chain, - struct uvc_xu_control_query *xqry); +int uvc_xu_ctrl_query(struct uvc_video_chain *chain, + struct uvc_xu_control_query *xqry); -/* Utility functions */ -extern void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, - unsigned int n_terms, unsigned int threshold); -extern uint32_t uvc_fraction_to_interval(uint32_t numerator, - uint32_t denominator); -extern struct usb_host_endpoint *uvc_find_endpoint( - struct usb_host_interface *alts, __u8 epaddr); +void uvc_ctrl_cleanup_fh(struct uvc_fh *handle); +/* Utility functions */ +struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, + u8 epaddr); /* Quirks support */ -void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, - struct uvc_buffer *buf); +void uvc_video_decode_isight(struct uvc_urb *uvc_urb, + struct uvc_buffer *buf, + struct uvc_buffer *meta_buf); /* debugfs and statistics */ -int uvc_debugfs_init(void); +void uvc_debugfs_init(void); void uvc_debugfs_cleanup(void); -int uvc_debugfs_init_stream(struct uvc_streaming *stream); +void uvc_debugfs_init_stream(struct uvc_streaming *stream); void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream); size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, |