| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd. |
| */ |
| |
| #ifndef FIMC_MDEVICE_H_ |
| #define FIMC_MDEVICE_H_ |
| |
| #include <linux/clk.h> |
| #include <linux/clk-provider.h> |
| #include <linux/platform_device.h> |
| #include <linux/mutex.h> |
| #include <linux/of.h> |
| #include <linux/pinctrl/consumer.h> |
| #include <media/media-device.h> |
| #include <media/media-entity.h> |
| #include <media/v4l2-device.h> |
| #include <media/v4l2-subdev.h> |
| #include <media/drv-intf/exynos-fimc.h> |
| |
| #include "fimc-core.h" |
| #include "fimc-lite.h" |
| #include "mipi-csis.h" |
| |
| #define FIMC_OF_NODE_NAME "fimc" |
| #define FIMC_LITE_OF_NODE_NAME "fimc-lite" |
| #define FIMC_IS_OF_NODE_NAME "fimc-is" |
| #define CSIS_OF_NODE_NAME "csis" |
| |
| #define FIMC_MAX_SENSORS 4 |
| #define FIMC_MAX_CAMCLKS 2 |
| #define DEFAULT_SENSOR_CLK_FREQ 24000000U |
| |
| /* LCD/ISP Writeback clocks (PIXELASYNCMx) */ |
| enum { |
| CLK_IDX_WB_A, |
| CLK_IDX_WB_B, |
| FIMC_MAX_WBCLKS |
| }; |
| |
| enum fimc_subdev_index { |
| IDX_SENSOR, |
| IDX_CSIS, |
| IDX_FLITE, |
| IDX_IS_ISP, |
| IDX_FIMC, |
| IDX_MAX, |
| }; |
| |
| /* |
| * This structure represents a chain of media entities, including a data |
| * source entity (e.g. an image sensor subdevice), a data capture entity |
| * - a video capture device node and any remaining entities. |
| */ |
| struct fimc_pipeline { |
| struct exynos_media_pipeline ep; |
| struct list_head list; |
| struct media_entity *vdev_entity; |
| struct v4l2_subdev *subdevs[IDX_MAX]; |
| }; |
| |
| #define to_fimc_pipeline(_ep) container_of(_ep, struct fimc_pipeline, ep) |
| |
| struct fimc_csis_info { |
| struct v4l2_subdev *sd; |
| int id; |
| }; |
| |
| struct fimc_camclk_info { |
| struct clk *clock; |
| int use_count; |
| unsigned long frequency; |
| }; |
| |
| /** |
| * struct fimc_sensor_info - image data source subdev information |
| * @pdata: sensor's attributes passed as media device's platform data |
| * @asd: asynchronous subdev registration data structure |
| * @subdev: image sensor v4l2 subdev |
| * @host: fimc device the sensor is currently linked to |
| * |
| * This data structure applies to image sensor and the writeback subdevs. |
| */ |
| struct fimc_sensor_info { |
| struct fimc_source_info pdata; |
| struct v4l2_async_subdev *asd; |
| struct v4l2_subdev *subdev; |
| struct fimc_dev *host; |
| }; |
| |
| struct cam_clk { |
| struct clk_hw hw; |
| struct fimc_md *fmd; |
| }; |
| #define to_cam_clk(_hw) container_of(_hw, struct cam_clk, hw) |
| |
| /** |
| * struct fimc_md - fimc media device information |
| * @csis: MIPI CSIS subdevs data |
| * @sensor: array of registered sensor subdevs |
| * @num_sensors: actual number of registered sensors |
| * @camclk: external sensor clock information |
| * @fimc: array of registered fimc devices |
| * @fimc_is: fimc-is data structure |
| * @use_isp: set to true when FIMC-IS subsystem is used |
| * @pmf: handle to the CAMCLK clock control FIMC helper device |
| * @media_dev: top level media device |
| * @v4l2_dev: top level v4l2_device holding up the subdevs |
| * @pdev: platform device this media device is hooked up into |
| * @cam_clk_provider: CAMCLK clock provider structure |
| * @user_subdev_api: true if subdevs are not configured by the host driver |
| * @slock: spinlock protecting @sensor array |
| */ |
| struct fimc_md { |
| struct fimc_csis_info csis[CSIS_MAX_ENTITIES]; |
| struct fimc_sensor_info sensor[FIMC_MAX_SENSORS]; |
| int num_sensors; |
| struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS]; |
| struct clk *wbclk[FIMC_MAX_WBCLKS]; |
| struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS]; |
| struct fimc_dev *fimc[FIMC_MAX_DEVS]; |
| struct fimc_is *fimc_is; |
| bool use_isp; |
| struct device *pmf; |
| struct media_device media_dev; |
| struct v4l2_device v4l2_dev; |
| struct platform_device *pdev; |
| |
| struct cam_clk_provider { |
| struct clk *clks[FIMC_MAX_CAMCLKS]; |
| struct clk_onecell_data clk_data; |
| struct device_node *of_node; |
| struct cam_clk camclk[FIMC_MAX_CAMCLKS]; |
| int num_clocks; |
| } clk_provider; |
| |
| struct v4l2_async_notifier subdev_notifier; |
| |
| bool user_subdev_api; |
| spinlock_t slock; |
| struct list_head pipelines; |
| struct media_graph link_setup_graph; |
| }; |
| |
| static inline |
| struct fimc_sensor_info *source_to_sensor_info(struct fimc_source_info *si) |
| { |
| return container_of(si, struct fimc_sensor_info, pdata); |
| } |
| |
| static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me) |
| { |
| return me->graph_obj.mdev == NULL ? NULL : |
| container_of(me->graph_obj.mdev, struct fimc_md, media_dev); |
| } |
| |
| static inline struct fimc_md *notifier_to_fimc_md(struct v4l2_async_notifier *n) |
| { |
| return container_of(n, struct fimc_md, subdev_notifier); |
| } |
| |
| static inline void fimc_md_graph_lock(struct exynos_video_entity *ve) |
| { |
| mutex_lock(&ve->vdev.entity.graph_obj.mdev->graph_mutex); |
| } |
| |
| static inline void fimc_md_graph_unlock(struct exynos_video_entity *ve) |
| { |
| mutex_unlock(&ve->vdev.entity.graph_obj.mdev->graph_mutex); |
| } |
| |
| int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on); |
| |
| #ifdef CONFIG_OF |
| static inline bool fimc_md_is_isp_available(struct device_node *node) |
| { |
| node = of_get_child_by_name(node, FIMC_IS_OF_NODE_NAME); |
| return node ? of_device_is_available(node) : false; |
| } |
| #else |
| #define fimc_md_is_isp_available(node) (false) |
| #endif /* CONFIG_OF */ |
| |
| static inline struct v4l2_subdev *__fimc_md_get_subdev( |
| struct exynos_media_pipeline *ep, |
| unsigned int index) |
| { |
| struct fimc_pipeline *p = to_fimc_pipeline(ep); |
| |
| if (!p || index >= IDX_MAX) |
| return NULL; |
| else |
| return p->subdevs[index]; |
| } |
| |
| #endif |