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/platform_device.h>
14 #include <linux/mutex.h>
16 #include <linux/pinctrl/consumer.h>
17 #include <media/media-device.h>
18 #include <media/media-entity.h>
19 #include <media/v4l2-device.h>
20 #include <media/v4l2-subdev.h>
22 #include "fimc-core.h"
23 #include "fimc-lite.h"
24 #include "mipi-csis.h"
26 #define FIMC_OF_NODE_NAME "fimc"
27 #define FIMC_LITE_OF_NODE_NAME "fimc-lite"
28 #define FIMC_IS_OF_NODE_NAME "fimc-is"
29 #define CSIS_OF_NODE_NAME "csis"
31 #define PINCTRL_STATE_IDLE "idle"
33 #define FIMC_MAX_SENSORS 8
34 #define FIMC_MAX_CAMCLKS 2
36 /* LCD/ISP Writeback clocks (PIXELASYNCMx) */
43 struct fimc_csis_info {
44 struct v4l2_subdev *sd;
48 struct fimc_camclk_info {
51 unsigned long frequency;
55 * struct fimc_sensor_info - image data source subdev information
56 * @pdata: sensor's atrributes passed as media device's platform data
57 * @subdev: image sensor v4l2 subdev
58 * @host: fimc device the sensor is currently linked to
60 * This data structure applies to image sensor and the writeback subdevs.
62 struct fimc_sensor_info {
63 struct fimc_source_info pdata;
64 struct v4l2_subdev *subdev;
65 struct fimc_dev *host;
69 * struct fimc_md - fimc media device information
70 * @csis: MIPI CSIS subdevs data
71 * @sensor: array of registered sensor subdevs
72 * @num_sensors: actual number of registered sensors
73 * @camclk: external sensor clock information
74 * @fimc: array of registered fimc devices
75 * @fimc_is: fimc-is data structure
76 * @use_isp: set to true when FIMC-IS subsystem is used
77 * @pmf: handle to the CAMCLK clock control FIMC helper device
78 * @media_dev: top level media device
79 * @v4l2_dev: top level v4l2_device holding up the subdevs
80 * @pdev: platform device this media device is hooked up into
81 * @pinctrl: camera port pinctrl handle
82 * @state_default: pinctrl default state handle
83 * @state_idle: pinctrl idle state handle
84 * @user_subdev_api: true if subdevs are not configured by the host driver
85 * @slock: spinlock protecting @sensor array
88 struct fimc_csis_info csis[CSIS_MAX_ENTITIES];
89 struct fimc_sensor_info sensor[FIMC_MAX_SENSORS];
91 struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS];
92 struct clk *wbclk[FIMC_MAX_WBCLKS];
93 struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS];
94 struct fimc_dev *fimc[FIMC_MAX_DEVS];
95 struct fimc_is *fimc_is;
98 struct media_device media_dev;
99 struct v4l2_device v4l2_dev;
100 struct platform_device *pdev;
101 struct fimc_pinctrl {
102 struct pinctrl *pinctrl;
103 struct pinctrl_state *state_default;
104 struct pinctrl_state *state_idle;
106 bool user_subdev_api;
110 #define is_subdev_pad(pad) (pad == NULL || \
111 media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV)
113 #define me_subtype(me) \
114 ((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK))
116 #define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE)
119 struct fimc_sensor_info *source_to_sensor_info(struct fimc_source_info *si)
121 return container_of(si, struct fimc_sensor_info, pdata);
124 static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me)
126 return me->parent == NULL ? NULL :
127 container_of(me->parent, struct fimc_md, media_dev);
130 static inline void fimc_md_graph_lock(struct fimc_dev *fimc)
132 mutex_lock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
135 static inline void fimc_md_graph_unlock(struct fimc_dev *fimc)
137 mutex_unlock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
140 int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on);
143 static inline bool fimc_md_is_isp_available(struct device_node *node)
145 node = of_get_child_by_name(node, FIMC_IS_OF_NODE_NAME);
146 return node ? of_device_is_available(node) : false;
149 #define fimc_md_is_isp_available(node) (false)
150 #endif /* CONFIG_OF */