forked from Minki/linux
4c8f0629f5
Make the sensor subdevs host_data hold a pointer to struct fimc_source_info, which is defined in the driver's public header, rather than a pointer to struct fimc_sensor_info which is specific to exynos4-is media device driver. The purpose of this change is to allow easier reuse of the fimc-lite module in the exynos5-is driver, which should similarly store a pointer to struct fimc_source_info instance in the sensor's subdev host_data. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/*
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* Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef FIMC_MDEVICE_H_
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#define FIMC_MDEVICE_H_
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/mutex.h>
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#include <linux/of.h>
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#include <linux/pinctrl/consumer.h>
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#include <media/media-device.h>
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#include <media/media-entity.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include "fimc-core.h"
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#include "fimc-lite.h"
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#include "mipi-csis.h"
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#define FIMC_OF_NODE_NAME "fimc"
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#define FIMC_LITE_OF_NODE_NAME "fimc-lite"
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#define FIMC_IS_OF_NODE_NAME "fimc-is"
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#define CSIS_OF_NODE_NAME "csis"
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#define PINCTRL_STATE_IDLE "idle"
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#define FIMC_MAX_SENSORS 8
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#define FIMC_MAX_CAMCLKS 2
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/* LCD/ISP Writeback clocks (PIXELASYNCMx) */
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enum {
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CLK_IDX_WB_A,
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CLK_IDX_WB_B,
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FIMC_MAX_WBCLKS
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};
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struct fimc_csis_info {
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struct v4l2_subdev *sd;
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int id;
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};
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struct fimc_camclk_info {
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struct clk *clock;
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int use_count;
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unsigned long frequency;
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};
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/**
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* struct fimc_sensor_info - image data source subdev information
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* @pdata: sensor's atrributes passed as media device's platform data
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* @subdev: image sensor v4l2 subdev
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* @host: fimc device the sensor is currently linked to
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*
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* This data structure applies to image sensor and the writeback subdevs.
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*/
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struct fimc_sensor_info {
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struct fimc_source_info pdata;
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struct v4l2_subdev *subdev;
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struct fimc_dev *host;
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};
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/**
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* struct fimc_md - fimc media device information
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* @csis: MIPI CSIS subdevs data
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* @sensor: array of registered sensor subdevs
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* @num_sensors: actual number of registered sensors
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* @camclk: external sensor clock information
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* @fimc: array of registered fimc devices
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* @fimc_is: fimc-is data structure
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* @use_isp: set to true when FIMC-IS subsystem is used
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* @pmf: handle to the CAMCLK clock control FIMC helper device
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* @media_dev: top level media device
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* @v4l2_dev: top level v4l2_device holding up the subdevs
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* @pdev: platform device this media device is hooked up into
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* @pinctrl: camera port pinctrl handle
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* @state_default: pinctrl default state handle
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* @state_idle: pinctrl idle state handle
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* @user_subdev_api: true if subdevs are not configured by the host driver
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* @slock: spinlock protecting @sensor array
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*/
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struct fimc_md {
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struct fimc_csis_info csis[CSIS_MAX_ENTITIES];
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struct fimc_sensor_info sensor[FIMC_MAX_SENSORS];
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int num_sensors;
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struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS];
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struct clk *wbclk[FIMC_MAX_WBCLKS];
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struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS];
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struct fimc_dev *fimc[FIMC_MAX_DEVS];
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struct fimc_is *fimc_is;
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bool use_isp;
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struct device *pmf;
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struct media_device media_dev;
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struct v4l2_device v4l2_dev;
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struct platform_device *pdev;
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struct fimc_pinctrl {
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struct pinctrl *pinctrl;
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struct pinctrl_state *state_default;
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struct pinctrl_state *state_idle;
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} pinctl;
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bool user_subdev_api;
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spinlock_t slock;
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};
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#define is_subdev_pad(pad) (pad == NULL || \
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media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV)
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#define me_subtype(me) \
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((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK))
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#define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE)
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static inline
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struct fimc_sensor_info *source_to_sensor_info(struct fimc_source_info *si)
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{
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return container_of(si, struct fimc_sensor_info, pdata);
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}
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static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me)
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{
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return me->parent == NULL ? NULL :
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container_of(me->parent, struct fimc_md, media_dev);
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}
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static inline void fimc_md_graph_lock(struct fimc_dev *fimc)
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{
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mutex_lock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
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}
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static inline void fimc_md_graph_unlock(struct fimc_dev *fimc)
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{
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mutex_unlock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
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}
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int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on);
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#ifdef CONFIG_OF
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static inline bool fimc_md_is_isp_available(struct device_node *node)
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{
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node = of_get_child_by_name(node, FIMC_IS_OF_NODE_NAME);
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return node ? of_device_is_available(node) : false;
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}
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#else
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#define fimc_md_is_isp_available(node) (false)
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#endif /* CONFIG_OF */
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#endif
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