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/*
* TI OMAP4 ISS V4L2 Driver - ISP RESIZER module
*
* Copyright (C) 2012 Texas Instruments, Inc.
*
* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef OMAP4_ISS_RESIZER_H
#define OMAP4_ISS_RESIZER_H
#include "iss_video.h"
enum resizer_input_entity {
RESIZER_INPUT_NONE,
RESIZER_INPUT_IPIPE,
RESIZER_INPUT_IPIPEIF
};
#define RESIZER_OUTPUT_MEMORY BIT(0)
/* Sink and source RESIZER pads */
#define RESIZER_PAD_SINK 0
#define RESIZER_PAD_SOURCE_MEM 1
#define RESIZER_PADS_NUM 2
/*
* struct iss_resizer_device - Structure for the RESIZER module to store its own
* information
* @subdev: V4L2 subdevice
* @pads: Sink and source media entity pads
* @formats: Active video formats
* @input: Active input
* @output: Active outputs
* @video_out: Output video node
* @error: A hardware error occurred during capture
* @state: Streaming state
* @wait: Wait queue used to stop the module
* @stopping: Stopping state
*/
struct iss_resizer_device {
struct v4l2_subdev subdev;
struct media_pad pads[RESIZER_PADS_NUM];
struct v4l2_mbus_framefmt formats[RESIZER_PADS_NUM];
enum resizer_input_entity input;
unsigned int output;
struct iss_video video_out;
unsigned int error;
enum iss_pipeline_stream_state state;
wait_queue_head_t wait;
atomic_t stopping;
};
struct iss_device;
int omap4iss_resizer_init(struct iss_device *iss);
int omap4iss_resizer_create_links(struct iss_device *iss);
void omap4iss_resizer_cleanup(struct iss_device *iss);
int omap4iss_resizer_register_entities(struct iss_resizer_device *resizer,
struct v4l2_device *vdev);
void omap4iss_resizer_unregister_entities(struct iss_resizer_device *resizer);
int omap4iss_resizer_busy(struct iss_resizer_device *resizer);
void omap4iss_resizer_isr(struct iss_resizer_device *resizer, u32 events);
void omap4iss_resizer_restore_context(struct iss_device *iss);
void omap4iss_resizer_max_rate(struct iss_resizer_device *resizer,
unsigned int *max_rate);
#endif /* OMAP4_ISS_RESIZER_H */
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