diff options
Diffstat (limited to 'drivers/media/platform/mediatek/mdp/mtk_mdp_core.h')
| -rw-r--r-- | drivers/media/platform/mediatek/mdp/mtk_mdp_core.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/mdp/mtk_mdp_core.h b/drivers/media/platform/mediatek/mdp/mtk_mdp_core.h new file mode 100644 index 000000000000..a6e6dc36307b --- /dev/null +++ b/drivers/media/platform/mediatek/mdp/mtk_mdp_core.h @@ -0,0 +1,256 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2015-2016 MediaTek Inc. + * Author: Houlong Wei <houlong.wei@mediatek.com> + * Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> + */ + +#ifndef __MTK_MDP_CORE_H__ +#define __MTK_MDP_CORE_H__ + +#include <linux/videodev2.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "mtk_mdp_vpu.h" +#include "mtk_mdp_comp.h" + + +#define MTK_MDP_MODULE_NAME "mtk-mdp" + +#define MTK_MDP_SHUTDOWN_TIMEOUT ((100*HZ)/1000) /* 100ms */ +#define MTK_MDP_MAX_CTRL_NUM 10 + +#define MTK_MDP_FMT_FLAG_OUTPUT BIT(0) +#define MTK_MDP_FMT_FLAG_CAPTURE BIT(1) + +#define MTK_MDP_VPU_INIT BIT(0) +#define MTK_MDP_CTX_ERROR BIT(5) + +/** + * struct mtk_mdp_pix_align - alignment of image + * @org_w: source alignment of width + * @org_h: source alignment of height + * @target_w: dst alignment of width + * @target_h: dst alignment of height + */ +struct mtk_mdp_pix_align { + u16 org_w; + u16 org_h; + u16 target_w; + u16 target_h; +}; + +/** + * struct mtk_mdp_fmt - the driver's internal color format data + * @pixelformat: the fourcc code for this format, 0 if not applicable + * @num_planes: number of physically non-contiguous data planes + * @num_comp: number of logical data planes + * @depth: per plane driver's private 'number of bits per pixel' + * @row_depth: per plane driver's private 'number of bits per pixel per row' + * @flags: flags indicating which operation mode format applies to + * MTK_MDP_FMT_FLAG_OUTPUT is used in OUTPUT stream + * MTK_MDP_FMT_FLAG_CAPTURE is used in CAPTURE stream + * @align: pointer to a pixel alignment struct, NULL if using default value + */ +struct mtk_mdp_fmt { + u32 pixelformat; + u16 num_planes; + u16 num_comp; + u8 depth[VIDEO_MAX_PLANES]; + u8 row_depth[VIDEO_MAX_PLANES]; + u32 flags; + struct mtk_mdp_pix_align *align; +}; + +/** + * struct mtk_mdp_addr - the image processor physical address set + * @addr: address of planes + */ +struct mtk_mdp_addr { + dma_addr_t addr[MTK_MDP_MAX_NUM_PLANE]; +}; + +/* struct mtk_mdp_ctrls - the image processor control set + * @rotate: rotation degree + * @hflip: horizontal flip + * @vflip: vertical flip + * @global_alpha: the alpha value of current frame + */ +struct mtk_mdp_ctrls { + struct v4l2_ctrl *rotate; + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vflip; + struct v4l2_ctrl *global_alpha; +}; + +/** + * struct mtk_mdp_frame - source/target frame properties + * @width: SRC : SRCIMG_WIDTH, DST : OUTPUTDMA_WHOLE_IMG_WIDTH + * @height: SRC : SRCIMG_HEIGHT, DST : OUTPUTDMA_WHOLE_IMG_HEIGHT + * @crop: cropped(source)/scaled(destination) size + * @payload: image size in bytes (w x h x bpp) + * @pitch: bytes per line of image in memory + * @addr: image frame buffer physical addresses + * @fmt: color format pointer + * @alpha: frame's alpha value + */ +struct mtk_mdp_frame { + u32 width; + u32 height; + struct v4l2_rect crop; + unsigned long payload[VIDEO_MAX_PLANES]; + unsigned int pitch[VIDEO_MAX_PLANES]; + struct mtk_mdp_addr addr; + const struct mtk_mdp_fmt *fmt; + u8 alpha; +}; + +/** + * struct mtk_mdp_variant - image processor variant information + * @pix_max: maximum limit of image size + * @pix_min: minimum limit of image size + * @pix_align: alignment of image + * @h_scale_up_max: maximum scale-up in horizontal + * @v_scale_up_max: maximum scale-up in vertical + * @h_scale_down_max: maximum scale-down in horizontal + * @v_scale_down_max: maximum scale-down in vertical + */ +struct mtk_mdp_variant { + struct mtk_mdp_pix_limit *pix_max; + struct mtk_mdp_pix_limit *pix_min; + struct mtk_mdp_pix_align *pix_align; + u16 h_scale_up_max; + u16 v_scale_up_max; + u16 h_scale_down_max; + u16 v_scale_down_max; +}; + +/** + * struct mtk_mdp_dev - abstraction for image processor entity + * @lock: the mutex protecting this data structure + * @vpulock: the mutex protecting the communication with VPU + * @pdev: pointer to the image processor platform device + * @variant: the IP variant information + * @id: image processor device index (0..MTK_MDP_MAX_DEVS) + * @comp_list: list of MDP function components + * @m2m_dev: v4l2 memory-to-memory device data + * @ctx_list: list of struct mtk_mdp_ctx + * @vdev: video device for image processor driver + * @v4l2_dev: V4L2 device to register video devices for. + * @job_wq: processor work queue + * @vpu_dev: VPU platform device + * @ctx_num: counter of active MTK MDP context + * @id_counter: An integer id given to the next opened context + * @wdt_wq: work queue for VPU watchdog + * @wdt_work: worker for VPU watchdog + */ +struct mtk_mdp_dev { + struct mutex lock; + struct mutex vpulock; + struct platform_device *pdev; + struct mtk_mdp_variant *variant; + u16 id; + struct list_head comp_list; + struct v4l2_m2m_dev *m2m_dev; + struct list_head ctx_list; + struct video_device *vdev; + struct v4l2_device v4l2_dev; + struct workqueue_struct *job_wq; + struct platform_device *vpu_dev; + int ctx_num; + unsigned long id_counter; + struct workqueue_struct *wdt_wq; + struct work_struct wdt_work; +}; + +/** + * struct mtk_mdp_ctx - the device context data + * @list: link to ctx_list of mtk_mdp_dev + * @s_frame: source frame properties + * @d_frame: destination frame properties + * @id: index of the context that this structure describes + * @flags: additional flags for image conversion + * @state: flags to keep track of user configuration + * Protected by slock + * @rotation: rotates the image by specified angle + * @hflip: mirror the picture horizontally + * @vflip: mirror the picture vertically + * @mdp_dev: the image processor device this context applies to + * @m2m_ctx: memory-to-memory device context + * @fh: v4l2 file handle + * @ctrl_handler: v4l2 controls handler + * @ctrls: image processor control set + * @ctrls_rdy: true if the control handler is initialized + * @colorspace: enum v4l2_colorspace; supplemental to pixelformat + * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding + * @xfer_func: enum v4l2_xfer_func, colorspace transfer function + * @quant: enum v4l2_quantization, colorspace quantization + * @vpu: VPU instance + * @slock: the mutex protecting mtp_mdp_ctx.state + * @work: worker for image processing + */ +struct mtk_mdp_ctx { + struct list_head list; + struct mtk_mdp_frame s_frame; + struct mtk_mdp_frame d_frame; + u32 flags; + u32 state; + int id; + int rotation; + u32 hflip:1; + u32 vflip:1; + struct mtk_mdp_dev *mdp_dev; + struct v4l2_m2m_ctx *m2m_ctx; + struct v4l2_fh fh; + struct v4l2_ctrl_handler ctrl_handler; + struct mtk_mdp_ctrls ctrls; + bool ctrls_rdy; + enum v4l2_colorspace colorspace; + enum v4l2_ycbcr_encoding ycbcr_enc; + enum v4l2_xfer_func xfer_func; + enum v4l2_quantization quant; + + struct mtk_mdp_vpu vpu; + struct mutex slock; + struct work_struct work; +}; + +extern int mtk_mdp_dbg_level; + +void mtk_mdp_register_component(struct mtk_mdp_dev *mdp, + struct mtk_mdp_comp *comp); + +void mtk_mdp_unregister_component(struct mtk_mdp_dev *mdp, + struct mtk_mdp_comp *comp); + +#if defined(DEBUG) + +#define mtk_mdp_dbg(level, fmt, args...) \ + do { \ + if (mtk_mdp_dbg_level >= level) \ + pr_info("[MTK_MDP] level=%d %s(),%d: " fmt "\n", \ + level, __func__, __LINE__, ##args); \ + } while (0) + +#define mtk_mdp_err(fmt, args...) \ + pr_err("[MTK_MDP][ERROR] %s:%d: " fmt "\n", __func__, __LINE__, \ + ##args) + + +#define mtk_mdp_dbg_enter() mtk_mdp_dbg(3, "+") +#define mtk_mdp_dbg_leave() mtk_mdp_dbg(3, "-") + +#else + +#define mtk_mdp_dbg(level, fmt, args...) {} +#define mtk_mdp_err(fmt, args...) +#define mtk_mdp_dbg_enter() +#define mtk_mdp_dbg_leave() + +#endif + +#endif /* __MTK_MDP_CORE_H__ */ |