diff options
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-mdevice.h')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-mdevice.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.h b/drivers/media/video/s5p-fimc/fimc-mdevice.h new file mode 100644 index 000000000000..da3780823e7d --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.h @@ -0,0 +1,118 @@ +/* + * Copyright (C) 2011 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/platform_device.h> +#include <linux/mutex.h> +#include <media/media-device.h> +#include <media/media-entity.h> +#include <media/v4l2-device.h> +#include <media/v4l2-subdev.h> + +#include "fimc-core.h" +#include "mipi-csis.h" + +/* Group IDs of sensor, MIPI CSIS and the writeback subdevs. */ +#define SENSOR_GROUP_ID (1 << 8) +#define CSIS_GROUP_ID (1 << 9) +#define WRITEBACK_GROUP_ID (1 << 10) + +#define FIMC_MAX_SENSORS 8 +#define FIMC_MAX_CAMCLKS 2 + +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 + * @subdev: image sensor v4l2 subdev + * @host: fimc device the sensor is currently linked to + * @clk_on: sclk_cam clock's state associated with this subdev + * + * This data structure applies to image sensor and the writeback subdevs. + */ +struct fimc_sensor_info { + struct s5p_fimc_isp_info *pdata; + struct v4l2_subdev *subdev; + struct fimc_dev *host; + bool clk_on; +}; + +/** + * 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 + * @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 + * @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 fimc_dev *fimc[FIMC_MAX_DEVS]; + struct media_device media_dev; + struct v4l2_device v4l2_dev; + struct platform_device *pdev; + bool user_subdev_api; + spinlock_t slock; +}; + +#define is_subdev_pad(pad) (pad == NULL || \ + media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV) + +#define me_subtype(me) \ + ((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK)) + +#define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE) + +static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me) +{ + return me->parent == NULL ? NULL : + container_of(me->parent, struct fimc_md, media_dev); +} + +static inline void fimc_md_graph_lock(struct fimc_dev *fimc) +{ + BUG_ON(fimc->vid_cap.vfd == NULL); + mutex_lock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); +} + +static inline void fimc_md_graph_unlock(struct fimc_dev *fimc) +{ + BUG_ON(fimc->vid_cap.vfd == NULL); + mutex_unlock(&fimc->vid_cap.vfd->entity.parent->graph_mutex); +} + +int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on); +void fimc_pipeline_prepare(struct fimc_dev *fimc, struct media_entity *me); +int fimc_pipeline_initialize(struct fimc_dev *fimc, struct media_entity *me, + bool resume); +int fimc_pipeline_shutdown(struct fimc_dev *fimc); +int fimc_pipeline_s_power(struct fimc_dev *fimc, int state); +int fimc_pipeline_s_stream(struct fimc_dev *fimc, int state); + +#endif |