media: camss: Add CSID files

/*

 * camss-csid.h

 *

 * Qualcomm MSM Camera Subsystem - CSID Module

 *

 * Copyright (c) 2011-2014, 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_CSID_H

#define QC_MSM_CAMSS_CSID_H

#include <linux/clk.h>

#include <media/media-entity.h>

#include <media/v4l2-ctrls.h>

#include <media/v4l2-device.h>

#include <media/v4l2-mediabus.h>

#include <media/v4l2-subdev.h>

#define MSM_CSID_PAD_SINK 0

#define MSM_CSID_PAD_SRC 1

#define MSM_CSID_PADS_NUM 2

enum csid_payload_mode {

	CSID_PAYLOAD_MODE_INCREMENTING = 0,

	CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,

	CSID_PAYLOAD_MODE_ALL_ZEROES = 2,

	CSID_PAYLOAD_MODE_ALL_ONES = 3,

	CSID_PAYLOAD_MODE_RANDOM = 4,

	CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,

};

struct csid_testgen_config {

	u8 enabled;

	enum csid_payload_mode payload_mode;

};

struct csid_phy_config {

	u8 csiphy_id;

	u8 lane_cnt;

	u32 lane_assign;

};

struct csid_device {

	u8 id;

	struct v4l2_subdev subdev;

	struct media_pad pads[MSM_CSID_PADS_NUM];

	void __iomem *base;

	u32 irq;

	char irq_name[30];

	struct clk **clock;

	int nclocks;

	struct regulator *vdda;

	struct completion reset_complete;

	struct csid_testgen_config testgen;

	struct csid_phy_config phy;

	struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM];

	struct v4l2_ctrl_handler ctrls;

	struct v4l2_ctrl *testgen_mode;

};

struct resources;

int msm_csid_subdev_init(struct csid_device *csid,

			 const struct resources *res, u8 id);

int msm_csid_register_entity(struct csid_device *csid,

			     struct v4l2_device *v4l2_dev);

void msm_csid_unregister_entity(struct csid_device *csid);

void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);

#endif /* QC_MSM_CAMSS_CSID_H */