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/*
* Greybus Camera protocol driver.
*
* Copyright 2015 Google Inc.
*
* Released under the GPLv2 only.
*/
#ifndef __GB_CAMERA_H
#define __GB_CAMERA_H
#include <linux/v4l2-mediabus.h>
/* Input flags need to be set from the caller */
#define GB_CAMERA_IN_FLAG_TEST (1 << 0)
/* Output flags returned */
#define GB_CAMERA_OUT_FLAG_ADJUSTED (1 << 0)
struct gb_camera_stream {
unsigned int width;
unsigned int height;
enum v4l2_mbus_pixelcode pixel_code;
unsigned int vc;
unsigned int dt[2];
unsigned int max_size;
};
/**
* struct gb_camera_csi_params - CSI configuration parameters
* @num_lanes: number of CSI data lanes
* @clk_freq: CSI clock frequency in Hz
* @lines_per_second: total number of lines in a second of transmission
* (blanking included)
*/
struct gb_camera_csi_params {
unsigned int num_lanes;
unsigned int clk_freq;
unsigned int lines_per_second;
};
struct gb_camera_ops {
ssize_t (*capabilities)(void *priv, char *buf, size_t len);
int (*configure_streams)(void *priv, unsigned int *nstreams,
unsigned int *flags, struct gb_camera_stream *streams,
struct gb_camera_csi_params *csi_params);
int (*capture)(void *priv, u32 request_id,
unsigned int streams, unsigned int num_frames,
size_t settings_size, const void *settings);
int (*flush)(void *priv, u32 *request_id);
};
struct gb_camera_module {
void *priv;
const struct gb_camera_ops *ops;
struct list_head list; /* Global list */
};
#define gb_camera_call(f, op, args...) \
(!(f) ? -ENODEV : (((f)->ops->op) ? \
(f)->ops->op((f)->priv, ##args) : -ENOIOCTLCMD))
int gb_camera_register(struct gb_camera_module *module);
int gb_camera_unregister(struct gb_camera_module *module);
#endif /* __GB_CAMERA_H */
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