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media: camss: Add CSID files

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These files control the CSID modules which handle the protocol and
application layer of the CSI2 receivers.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Todor Tomov 2017-08-08 09:30:03 -04:00 committed by Mauro Carvalho Chehab
parent c94d21ffa8
commit 0c277ec685
2 changed files with 1085 additions and 0 deletions
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drivers/media/platform/qcom/camss-8x16/camss-csid.c Normal file
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drivers/media/platform/qcom/camss-8x16/camss-csid.h Normal file
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/*
* 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 */