2 * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #ifndef FIMC_MDEVICE_H_
10 #define FIMC_MDEVICE_H_
12 #include <linux/clk.h>
13 #include <linux/clk-provider.h>
14 #include <linux/platform_device.h>
15 #include <linux/mutex.h>
17 #include <linux/pinctrl/consumer.h>
18 #include <media/media-device.h>
19 #include <media/media-entity.h>
20 #include <media/v4l2-device.h>
21 #include <media/v4l2-subdev.h>
22 #include <media/drv-intf/exynos-fimc.h>
24 #include "fimc-core.h"
25 #include "fimc-lite.h"
26 #include "mipi-csis.h"
28 #define FIMC_OF_NODE_NAME "fimc"
29 #define FIMC_LITE_OF_NODE_NAME "fimc-lite"
30 #define FIMC_IS_OF_NODE_NAME "fimc-is"
31 #define CSIS_OF_NODE_NAME "csis"
33 #define PINCTRL_STATE_IDLE "idle"
35 #define FIMC_MAX_SENSORS 4
36 #define FIMC_MAX_CAMCLKS 2
37 #define DEFAULT_SENSOR_CLK_FREQ 24000000U
39 /* LCD/ISP Writeback clocks (PIXELASYNCMx) */
46 enum fimc_subdev_index {
56 * This structure represents a chain of media entities, including a data
57 * source entity (e.g. an image sensor subdevice), a data capture entity
58 * - a video capture device node and any remaining entities.
60 struct fimc_pipeline {
61 struct exynos_media_pipeline ep;
62 struct list_head list;
63 struct media_entity *vdev_entity;
64 struct v4l2_subdev *subdevs[IDX_MAX];
67 #define to_fimc_pipeline(_ep) container_of(_ep, struct fimc_pipeline, ep)
69 struct fimc_csis_info {
70 struct v4l2_subdev *sd;
74 struct fimc_camclk_info {
77 unsigned long frequency;
81 * struct fimc_sensor_info - image data source subdev information
82 * @pdata: sensor's atrributes passed as media device's platform data
83 * @asd: asynchronous subdev registration data structure
84 * @subdev: image sensor v4l2 subdev
85 * @host: fimc device the sensor is currently linked to
87 * This data structure applies to image sensor and the writeback subdevs.
89 struct fimc_sensor_info {
90 struct fimc_source_info pdata;
91 struct v4l2_async_subdev asd;
92 struct v4l2_subdev *subdev;
93 struct fimc_dev *host;
100 #define to_cam_clk(_hw) container_of(_hw, struct cam_clk, hw)
103 * struct fimc_md - fimc media device information
104 * @csis: MIPI CSIS subdevs data
105 * @sensor: array of registered sensor subdevs
106 * @num_sensors: actual number of registered sensors
107 * @camclk: external sensor clock information
108 * @fimc: array of registered fimc devices
109 * @fimc_is: fimc-is data structure
110 * @use_isp: set to true when FIMC-IS subsystem is used
111 * @pmf: handle to the CAMCLK clock control FIMC helper device
112 * @media_dev: top level media device
113 * @v4l2_dev: top level v4l2_device holding up the subdevs
114 * @pdev: platform device this media device is hooked up into
115 * @pinctrl: camera port pinctrl handle
116 * @state_default: pinctrl default state handle
117 * @state_idle: pinctrl idle state handle
118 * @cam_clk_provider: CAMCLK clock provider structure
119 * @user_subdev_api: true if subdevs are not configured by the host driver
120 * @slock: spinlock protecting @sensor array
123 struct fimc_csis_info csis[CSIS_MAX_ENTITIES];
124 struct fimc_sensor_info sensor[FIMC_MAX_SENSORS];
126 struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS];
127 struct clk *wbclk[FIMC_MAX_WBCLKS];
128 struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS];
129 struct fimc_dev *fimc[FIMC_MAX_DEVS];
130 struct fimc_is *fimc_is;
133 struct media_device media_dev;
134 struct v4l2_device v4l2_dev;
135 struct platform_device *pdev;
137 struct fimc_pinctrl {
138 struct pinctrl *pinctrl;
139 struct pinctrl_state *state_default;
140 struct pinctrl_state *state_idle;
143 struct cam_clk_provider {
144 struct clk *clks[FIMC_MAX_CAMCLKS];
145 struct clk_onecell_data clk_data;
146 struct device_node *of_node;
147 struct cam_clk camclk[FIMC_MAX_CAMCLKS];
151 struct v4l2_async_notifier subdev_notifier;
152 struct v4l2_async_subdev *async_subdevs[FIMC_MAX_SENSORS];
154 bool user_subdev_api;
156 struct list_head pipelines;
157 struct media_graph link_setup_graph;
161 struct fimc_sensor_info *source_to_sensor_info(struct fimc_source_info *si)
163 return container_of(si, struct fimc_sensor_info, pdata);
166 static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me)
168 return me->graph_obj.mdev == NULL ? NULL :
169 container_of(me->graph_obj.mdev, struct fimc_md, media_dev);
172 static inline struct fimc_md *notifier_to_fimc_md(struct v4l2_async_notifier *n)
174 return container_of(n, struct fimc_md, subdev_notifier);
177 static inline void fimc_md_graph_lock(struct exynos_video_entity *ve)
179 mutex_lock(&ve->vdev.entity.graph_obj.mdev->graph_mutex);
182 static inline void fimc_md_graph_unlock(struct exynos_video_entity *ve)
184 mutex_unlock(&ve->vdev.entity.graph_obj.mdev->graph_mutex);
187 int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on);
190 static inline bool fimc_md_is_isp_available(struct device_node *node)
192 node = of_get_child_by_name(node, FIMC_IS_OF_NODE_NAME);
193 return node ? of_device_is_available(node) : false;
196 #define fimc_md_is_isp_available(node) (false)
197 #endif /* CONFIG_OF */
199 static inline struct v4l2_subdev *__fimc_md_get_subdev(
200 struct exynos_media_pipeline *ep,
203 struct fimc_pipeline *p = to_fimc_pipeline(ep);
205 if (!p || index >= IDX_MAX)
208 return p->subdevs[index];