media: camss: Add ISPIF files

/*

 * camss-ispif.h

 *

 * Qualcomm MSM Camera Subsystem - ISPIF Module

 *

 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

 * Copyright (C) 2015-2017 Linaro 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 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#ifndef QC_MSM_CAMSS_ISPIF_H

#define QC_MSM_CAMSS_ISPIF_H

#include <linux/clk.h>

#include <media/media-entity.h>

#include <media/v4l2-device.h>

#include <media/v4l2-subdev.h>

/* Number of ISPIF lines - same as number of CSID hardware modules */

#define MSM_ISPIF_LINE_NUM 2

#define MSM_ISPIF_PAD_SINK 0

#define MSM_ISPIF_PAD_SRC 1

#define MSM_ISPIF_PADS_NUM 2

#define MSM_ISPIF_VFE_NUM 1

enum ispif_intf {

	PIX0,

	RDI0,

	PIX1,

	RDI1,

	RDI2

};

struct ispif_intf_cmd_reg {

	u32 cmd_0;

	u32 cmd_1;

};

struct ispif_line {

	u8 id;

	u8 csid_id;

	u8 vfe_id;

	enum ispif_intf interface;

	struct v4l2_subdev subdev;

	struct media_pad pads[MSM_ISPIF_PADS_NUM];

	struct v4l2_mbus_framefmt fmt[MSM_ISPIF_PADS_NUM];

};

struct ispif_device {

	void __iomem *base;

	void __iomem *base_clk_mux;

	u32 irq;

	char irq_name[30];

	struct clk **clock;

	int nclocks;

	struct clk **clock_for_reset;

	int nclocks_for_reset;

	struct completion reset_complete;

	int power_count;

	struct mutex power_lock;

	struct ispif_intf_cmd_reg intf_cmd[MSM_ISPIF_VFE_NUM];

	struct mutex config_lock;

	struct ispif_line line[MSM_ISPIF_LINE_NUM];

};

struct resources_ispif;

int msm_ispif_subdev_init(struct ispif_device *ispif,

			  const struct resources_ispif *res);

int msm_ispif_register_entities(struct ispif_device *ispif,

				struct v4l2_device *v4l2_dev);

void msm_ispif_unregister_entities(struct ispif_device *ispif);

#endif /* QC_MSM_CAMSS_ISPIF_H */