diff options
Diffstat (limited to 'drivers/media/platform/rockchip/rkcif/rkcif-common.h')
| -rw-r--r-- | drivers/media/platform/rockchip/rkcif/rkcif-common.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h new file mode 100644 index 000000000000..dd92cfbc879f --- /dev/null +++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h @@ -0,0 +1,250 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Rockchip Camera Interface (CIF) Driver + * + * Copyright (C) 2018 Rockchip Electronics Co., Ltd. + * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com> + * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net> + * Copyright (C) 2025 Collabora, Ltd. + */ + +#ifndef _RKCIF_COMMON_H +#define _RKCIF_COMMON_H + +#include <linux/clk.h> +#include <linux/mutex.h> +#include <linux/regmap.h> + +#include <media/media-device.h> +#include <media/media-entity.h> +#include <media/v4l2-common.h> +#include <media/v4l2-device.h> +#include <media/v4l2-fwnode.h> +#include <media/v4l2-mc.h> +#include <media/v4l2-subdev.h> +#include <media/videobuf2-v4l2.h> + +#include "rkcif-regs.h" + +#define RKCIF_DRIVER_NAME "rockchip-cif" +#define RKCIF_CLK_MAX 4 + +enum rkcif_format_type { + RKCIF_FMT_TYPE_INVALID, + RKCIF_FMT_TYPE_YUV, + RKCIF_FMT_TYPE_RAW, +}; + +enum rkcif_id_index { + RKCIF_ID0, + RKCIF_ID1, + RKCIF_ID2, + RKCIF_ID3, + RKCIF_ID_MAX +}; + +enum rkcif_interface_index { + RKCIF_DVP, + RKCIF_MIPI_BASE, + RKCIF_MIPI1 = RKCIF_MIPI_BASE, + RKCIF_MIPI2, + RKCIF_MIPI3, + RKCIF_MIPI4, + RKCIF_MIPI5, + RKCIF_MIPI6, + RKCIF_MIPI_MAX, + RKCIF_IF_MAX = RKCIF_MIPI_MAX +}; + +enum rkcif_interface_pad_index { + RKCIF_IF_PAD_SINK, + RKCIF_IF_PAD_SRC, + RKCIF_IF_PAD_MAX +}; + +enum rkcif_interface_status { + RKCIF_IF_INACTIVE, + RKCIF_IF_ACTIVE, +}; + +enum rkcif_interface_type { + RKCIF_IF_INVALID, + RKCIF_IF_DVP, + RKCIF_IF_MIPI, +}; + +enum rkcif_mipi_format_type { + RKCIF_MIPI_TYPE_INVALID, + RKCIF_MIPI_TYPE_RAW8, + RKCIF_MIPI_TYPE_RAW10, + RKCIF_MIPI_TYPE_RAW12, + RKCIF_MIPI_TYPE_RGB888, + RKCIF_MIPI_TYPE_YUV422SP, + RKCIF_MIPI_TYPE_YUV420SP, + RKCIF_MIPI_TYPE_YUV400, +}; + +struct rkcif_buffer { + struct vb2_v4l2_buffer vb; + struct list_head queue; + dma_addr_t buff_addr[VIDEO_MAX_PLANES]; + bool is_dummy; +}; + +struct rkcif_dummy_buffer { + struct rkcif_buffer buffer; + void *vaddr; + u32 size; +}; + +enum rkcif_plane_index { + RKCIF_PLANE_Y, + RKCIF_PLANE_UV, + RKCIF_PLANE_MAX +}; + +struct rkcif_input_fmt { + u32 mbus_code; + + enum rkcif_format_type fmt_type; + enum v4l2_field field; + + union { + u32 dvp_fmt_val; + }; +}; + +struct rkcif_output_fmt { + u32 fourcc; + u32 mbus_code; + u8 cplanes; + u8 depth; + + union { + u32 dvp_fmt_val; + struct { + u8 dt; + bool compact; + enum rkcif_mipi_format_type type; + } mipi; + }; +}; + +struct rkcif_interface; + +struct rkcif_remote { + struct v4l2_async_connection async_conn; + struct v4l2_subdev *sd; + + struct rkcif_interface *interface; +}; + +struct rkcif_stream { + enum rkcif_id_index id; + struct rkcif_device *rkcif; + struct rkcif_interface *interface; + const struct rkcif_output_fmt *out_fmts; + unsigned int out_fmts_num; + + /* in ping-pong mode, two buffers can be provided to the HW */ + struct rkcif_buffer *buffers[2]; + int frame_idx; + int frame_phase; + + /* in case of no available buffer, HW can write to the dummy buffer */ + struct rkcif_dummy_buffer dummy; + + bool stopping; + wait_queue_head_t wq_stopped; + + /* queue of available buffers plus spinlock that protects it */ + spinlock_t driver_queue_lock; + struct list_head driver_queue; + + /* lock used by the V4L2 core */ + struct mutex vlock; + + struct media_pad pad; + struct media_pipeline pipeline; + struct v4l2_pix_format_mplane pix; + struct vb2_queue buf_queue; + struct video_device vdev; + + void (*queue_buffer)(struct rkcif_stream *stream, unsigned int index); + int (*start_streaming)(struct rkcif_stream *stream); + void (*stop_streaming)(struct rkcif_stream *stream); +}; + +struct rkcif_dvp { + u32 dvp_clk_delay; +}; + +struct rkcif_interface { + enum rkcif_interface_type type; + enum rkcif_interface_status status; + enum rkcif_interface_index index; + struct rkcif_device *rkcif; + struct rkcif_remote *remote; + struct rkcif_stream streams[RKCIF_ID_MAX]; + unsigned int streams_num; + const struct rkcif_input_fmt *in_fmts; + unsigned int in_fmts_num; + + struct media_pad pads[RKCIF_IF_PAD_MAX]; + struct v4l2_fwnode_endpoint vep; + struct v4l2_subdev sd; + + union { + struct rkcif_dvp dvp; + }; + + void (*set_crop)(struct rkcif_stream *stream, u16 left, u16 top); +}; + +struct rkcif_mipi_match_data { + unsigned int mipi_num; + unsigned int regs[RKCIF_MIPI_REGISTER_MAX]; + unsigned int regs_id[RKCIF_ID_MAX][RKCIF_MIPI_ID_REGISTER_MAX]; + u32 (*mipi_ctrl0)(struct rkcif_stream *stream, + const struct rkcif_output_fmt *active_out_fmt); + struct { + unsigned int offset; + } blocks[RKCIF_MIPI_MAX - RKCIF_MIPI_BASE]; +}; + +struct rkcif_dvp_match_data { + const struct rkcif_input_fmt *in_fmts; + unsigned int in_fmts_num; + const struct rkcif_output_fmt *out_fmts; + unsigned int out_fmts_num; + void (*setup)(struct rkcif_device *rkcif); + bool has_scaler; + bool has_ids; + unsigned int regs[RKCIF_DVP_REGISTER_MAX]; +}; + +struct rkcif_match_data { + const char *const *clks; + unsigned int clks_num; + const struct rkcif_dvp_match_data *dvp; + const struct rkcif_mipi_match_data *mipi; +}; + +struct rkcif_device { + struct device *dev; + + const struct rkcif_match_data *match_data; + struct clk_bulk_data clks[RKCIF_CLK_MAX]; + unsigned int clks_num; + struct regmap *grf; + struct reset_control *reset; + void __iomem *base_addr; + + struct rkcif_interface interfaces[RKCIF_IF_MAX]; + + struct media_device media_dev; + struct v4l2_device v4l2_dev; + struct v4l2_async_notifier notifier; +}; + +#endif |