mirror of https://gitee.com/openkylin/linux.git
211 lines
5.6 KiB
C
211 lines
5.6 KiB
C
/*
|
|
* Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#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 PINCTRL_STATE_IDLE "idle"
|
|
|
|
#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 atrributes 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
|
|
* @pinctrl: camera port pinctrl handle
|
|
* @state_default: pinctrl default state handle
|
|
* @state_idle: pinctrl idle state handle
|
|
* @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 fimc_pinctrl {
|
|
struct pinctrl *pinctrl;
|
|
struct pinctrl_state *state_default;
|
|
struct pinctrl_state *state_idle;
|
|
} pinctl;
|
|
|
|
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;
|
|
struct v4l2_async_subdev *async_subdevs[FIMC_MAX_SENSORS];
|
|
|
|
bool user_subdev_api;
|
|
spinlock_t slock;
|
|
struct list_head pipelines;
|
|
};
|
|
|
|
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
|