1/* 2 * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd. 3 * 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. 7 */ 8 9#ifndef FIMC_MDEVICE_H_ 10#define FIMC_MDEVICE_H_ 11 12#include <linux/clk.h> 13#include <linux/platform_device.h> 14#include <linux/mutex.h> 15#include <media/media-device.h> 16#include <media/media-entity.h> 17#include <media/v4l2-device.h> 18#include <media/v4l2-subdev.h> 19 20#include "fimc-core.h" 21#include "fimc-lite.h" 22#include "mipi-csis.h" 23 24/* Group IDs of sensor, MIPI-CSIS, FIMC-LITE and the writeback subdevs. */ 25#define SENSOR_GROUP_ID (1 << 8) 26#define CSIS_GROUP_ID (1 << 9) 27#define WRITEBACK_GROUP_ID (1 << 10) 28#define FIMC_GROUP_ID (1 << 11) 29#define FLITE_GROUP_ID (1 << 12) 30 31#define FIMC_MAX_SENSORS 8 32#define FIMC_MAX_CAMCLKS 2 33 34struct fimc_csis_info { 35 struct v4l2_subdev *sd; 36 int id; 37}; 38 39struct fimc_camclk_info { 40 struct clk *clock; 41 int use_count; 42 unsigned long frequency; 43}; 44 45/** 46 * struct fimc_sensor_info - image data source subdev information 47 * @pdata: sensor's atrributes passed as media device's platform data 48 * @subdev: image sensor v4l2 subdev 49 * @host: fimc device the sensor is currently linked to 50 * 51 * This data structure applies to image sensor and the writeback subdevs. 52 */ 53struct fimc_sensor_info { 54 struct s5p_fimc_isp_info *pdata; 55 struct v4l2_subdev *subdev; 56 struct fimc_dev *host; 57}; 58 59/** 60 * struct fimc_md - fimc media device information 61 * @csis: MIPI CSIS subdevs data 62 * @sensor: array of registered sensor subdevs 63 * @num_sensors: actual number of registered sensors 64 * @camclk: external sensor clock information 65 * @fimc: array of registered fimc devices 66 * @media_dev: top level media device 67 * @v4l2_dev: top level v4l2_device holding up the subdevs 68 * @pdev: platform device this media device is hooked up into 69 * @user_subdev_api: true if subdevs are not configured by the host driver 70 * @slock: spinlock protecting @sensor array 71 */ 72struct fimc_md { 73 struct fimc_csis_info csis[CSIS_MAX_ENTITIES]; 74 struct fimc_sensor_info sensor[FIMC_MAX_SENSORS]; 75 int num_sensors; 76 struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS]; 77 struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS]; 78 struct fimc_dev *fimc[FIMC_MAX_DEVS]; 79 struct media_device media_dev; 80 struct v4l2_device v4l2_dev; 81 struct platform_device *pdev; 82 bool user_subdev_api; 83 spinlock_t slock; 84}; 85 86#define is_subdev_pad(pad) (pad == NULL || \ 87 media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV) 88 89#define me_subtype(me) \ 90 ((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK)) 91 92#define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE) 93 94static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me) 95{ 96 return me->parent == NULL ? NULL : 97 container_of(me->parent, struct fimc_md, media_dev); 98} 99 100static inline void fimc_md_graph_lock(struct fimc_dev *fimc) 101{ 102 BUG_ON(fimc->vid_cap.vfd == NULL); 103 mutex_lock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); 104} 105 106static inline void fimc_md_graph_unlock(struct fimc_dev *fimc) 107{ 108 BUG_ON(fimc->vid_cap.vfd == NULL); 109 mutex_unlock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); 110} 111 112int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on); 113void fimc_pipeline_prepare(struct fimc_pipeline *p, struct media_entity *me); 114int fimc_pipeline_initialize(struct fimc_pipeline *p, struct media_entity *me, 115 bool resume); 116int fimc_pipeline_shutdown(struct fimc_pipeline *p); 117int fimc_pipeline_s_power(struct fimc_pipeline *p, bool state); 118int fimc_pipeline_s_stream(struct fimc_pipeline *p, bool state); 119 120#endif 121