diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-vin.h')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-vin.h | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h deleted file mode 100644 index 0b13b34d03e3..000000000000 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ /dev/null @@ -1,270 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Driver for Renesas R-Car VIN - * - * Copyright (C) 2016 Renesas Electronics Corp. - * Copyright (C) 2011-2013 Renesas Solutions Corp. - * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com> - * Copyright (C) 2008 Magnus Damm - * - * Based on the soc-camera rcar_vin driver - */ - -#ifndef __RCAR_VIN__ -#define __RCAR_VIN__ - -#include <linux/kref.h> - -#include <media/v4l2-async.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-dev.h> -#include <media/v4l2-device.h> -#include <media/videobuf2-v4l2.h> - -/* Number of HW buffers */ -#define HW_BUFFER_NUM 3 - -/* Address alignment mask for HW buffers */ -#define HW_BUFFER_MASK 0x7f - -/* Max number on VIN instances that can be in a system */ -#define RCAR_VIN_NUM 8 - -struct rvin_group; - -enum model_id { - RCAR_H1, - RCAR_M1, - RCAR_GEN2, - RCAR_GEN3, -}; - -enum rvin_csi_id { - RVIN_CSI20, - RVIN_CSI21, - RVIN_CSI40, - RVIN_CSI41, - RVIN_CSI_MAX, -}; - -/** - * STOPPED - No operation in progress - * STARTING - Capture starting up - * RUNNING - Operation in progress have buffers - * STOPPING - Stopping operation - */ -enum rvin_dma_state { - STOPPED = 0, - STARTING, - RUNNING, - STOPPING, -}; - -/** - * struct rvin_video_format - Data format stored in memory - * @fourcc: Pixelformat - * @bpp: Bytes per pixel - */ -struct rvin_video_format { - u32 fourcc; - u8 bpp; -}; - -/** - * struct rvin_parallel_entity - Parallel video input endpoint descriptor - * @asd: sub-device descriptor for async framework - * @subdev: subdevice matched using async framework - * @mbus_type: media bus type - * @mbus_flags: media bus configuration flags - * @source_pad: source pad of remote subdevice - * @sink_pad: sink pad of remote subdevice - * - */ -struct rvin_parallel_entity { - struct v4l2_async_subdev asd; - struct v4l2_subdev *subdev; - - enum v4l2_mbus_type mbus_type; - unsigned int mbus_flags; - - unsigned int source_pad; - unsigned int sink_pad; -}; - -/** - * struct rvin_group_route - describes a route from a channel of a - * CSI-2 receiver to a VIN - * - * @csi: CSI-2 receiver ID. - * @channel: Output channel of the CSI-2 receiver. - * @vin: VIN ID. - * @mask: Bitmask of the different CHSEL register values that - * allow for a route from @csi + @chan to @vin. - * - * .. note:: - * Each R-Car CSI-2 receiver has four output channels facing the VIN - * devices, each channel can carry one CSI-2 Virtual Channel (VC). - * There is no correlation between channel number and CSI-2 VC. It's - * up to the CSI-2 receiver driver to configure which VC is output - * on which channel, the VIN devices only care about output channels. - * - * There are in some cases multiple CHSEL register settings which would - * allow for the same route from @csi + @channel to @vin. For example - * on R-Car H3 both the CHSEL values 0 and 3 allow for a route from - * CSI40/VC0 to VIN0. All possible CHSEL values for a route need to be - * recorded as a bitmask in @mask, in this example bit 0 and 3 should - * be set. - */ -struct rvin_group_route { - enum rvin_csi_id csi; - unsigned int channel; - unsigned int vin; - unsigned int mask; -}; - -/** - * struct rvin_info - Information about the particular VIN implementation - * @model: VIN model - * @use_mc: use media controller instead of controlling subdevice - * @max_width: max input width the VIN supports - * @max_height: max input height the VIN supports - * @routes: list of possible routes from the CSI-2 recivers to - * all VINs. The list mush be NULL terminated. - */ -struct rvin_info { - enum model_id model; - bool use_mc; - - unsigned int max_width; - unsigned int max_height; - const struct rvin_group_route *routes; -}; - -/** - * struct rvin_dev - Renesas VIN device structure - * @dev: (OF) device - * @base: device I/O register space remapped to virtual memory - * @info: info about VIN instance - * - * @vdev: V4L2 video device associated with VIN - * @v4l2_dev: V4L2 device - * @ctrl_handler: V4L2 control handler - * @notifier: V4L2 asynchronous subdevs notifier - * - * @parallel: parallel input subdevice descriptor - * - * @group: Gen3 CSI group - * @id: Gen3 group id for this VIN - * @pad: media pad for the video device entity - * - * @lock: protects @queue - * @queue: vb2 buffers queue - * @scratch: cpu address for scratch buffer - * @scratch_phys: physical address of the scratch buffer - * - * @qlock: protects @queue_buf, @buf_list, @sequence - * @state - * @queue_buf: Keeps track of buffers given to HW slot - * @buf_list: list of queued buffers - * @sequence: V4L2 buffers sequence number - * @state: keeps track of operation state - * - * @is_csi: flag to mark the VIN as using a CSI-2 subdevice - * - * @mbus_code: media bus format code - * @format: active V4L2 pixel format - * - * @crop: active cropping - * @compose: active composing - * @source: active size of the video source - * @std: active video standard of the video source - */ -struct rvin_dev { - struct device *dev; - void __iomem *base; - const struct rvin_info *info; - - struct video_device vdev; - struct v4l2_device v4l2_dev; - struct v4l2_ctrl_handler ctrl_handler; - struct v4l2_async_notifier notifier; - - struct rvin_parallel_entity *parallel; - - struct rvin_group *group; - unsigned int id; - struct media_pad pad; - - struct mutex lock; - struct vb2_queue queue; - void *scratch; - dma_addr_t scratch_phys; - - spinlock_t qlock; - struct vb2_v4l2_buffer *queue_buf[HW_BUFFER_NUM]; - struct list_head buf_list; - unsigned int sequence; - enum rvin_dma_state state; - - bool is_csi; - - u32 mbus_code; - struct v4l2_pix_format format; - - struct v4l2_rect crop; - struct v4l2_rect compose; - struct v4l2_rect source; - v4l2_std_id std; -}; - -#define vin_to_source(vin) ((vin)->parallel->subdev) - -/* Debug */ -#define vin_dbg(d, fmt, arg...) dev_dbg(d->dev, fmt, ##arg) -#define vin_info(d, fmt, arg...) dev_info(d->dev, fmt, ##arg) -#define vin_warn(d, fmt, arg...) dev_warn(d->dev, fmt, ##arg) -#define vin_err(d, fmt, arg...) dev_err(d->dev, fmt, ##arg) - -/** - * struct rvin_group - VIN CSI2 group information - * @refcount: number of VIN instances using the group - * - * @mdev: media device which represents the group - * - * @lock: protects the count, notifier, vin and csi members - * @count: number of enabled VIN instances found in DT - * @notifier: group notifier for CSI-2 async subdevices - * @vin: VIN instances which are part of the group - * @csi: array of pairs of fwnode and subdev pointers - * to all CSI-2 subdevices. - */ -struct rvin_group { - struct kref refcount; - - struct media_device mdev; - - struct mutex lock; - unsigned int count; - struct v4l2_async_notifier notifier; - struct rvin_dev *vin[RCAR_VIN_NUM]; - - struct { - struct fwnode_handle *fwnode; - struct v4l2_subdev *subdev; - } csi[RVIN_CSI_MAX]; -}; - -int rvin_dma_register(struct rvin_dev *vin, int irq); -void rvin_dma_unregister(struct rvin_dev *vin); - -int rvin_v4l2_register(struct rvin_dev *vin); -void rvin_v4l2_unregister(struct rvin_dev *vin); - -const struct rvin_video_format *rvin_format_from_pixel(u32 pixelformat); - -/* Cropping, composing and scaling */ -void rvin_crop_scale_comp(struct rvin_dev *vin); - -int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel); - -#endif |