drivers/media/platform/qcom/camss-8x16/camss-csid.h

   1 /*
   2  * camss-csid.h
   3  *
   4  * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module
   5  *
   6  * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
   7  * Copyright (C) 2015-2017 Linaro Ltd.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 and
  11  * only version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18 #ifndef QC_MSM_CAMSS_CSID_H
  19 #define QC_MSM_CAMSS_CSID_H
  20
  21 #include <linux/clk.h>
  22 #include <media/media-entity.h>
  23 #include <media/v4l2-ctrls.h>
  24 #include <media/v4l2-device.h>
  25 #include <media/v4l2-mediabus.h>
  26 #include <media/v4l2-subdev.h>
  27
  28 #define MSM_CSID_PAD_SINK 0
  29 #define MSM_CSID_PAD_SRC 1
  30 #define MSM_CSID_PADS_NUM 2
  31
  32 enum csid_payload_mode {
  33         CSID_PAYLOAD_MODE_INCREMENTING = 0,
  34         CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,
  35         CSID_PAYLOAD_MODE_ALL_ZEROES = 2,
  36         CSID_PAYLOAD_MODE_ALL_ONES = 3,
  37         CSID_PAYLOAD_MODE_RANDOM = 4,
  38         CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,
  39 };
  40
  41 struct csid_testgen_config {
  42         u8 enabled;
  43         enum csid_payload_mode payload_mode;
  44 };
  45
  46 struct csid_phy_config {
  47         u8 csiphy_id;
  48         u8 lane_cnt;
  49         u32 lane_assign;
  50 };
  51
  52 struct csid_device {
  53         u8 id;
  54         struct v4l2_subdev subdev;
  55         struct media_pad pads[MSM_CSID_PADS_NUM];
  56         void __iomem *base;
  57         u32 irq;
  58         char irq_name[30];
  59         struct camss_clock *clock;
  60         int nclocks;
  61         struct regulator *vdda;
  62         struct completion reset_complete;
  63         struct csid_testgen_config testgen;
  64         struct csid_phy_config phy;
  65         struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM];
  66         struct v4l2_ctrl_handler ctrls;
  67         struct v4l2_ctrl *testgen_mode;
  68 };
  69
  70 struct resources;
  71
  72 int msm_csid_subdev_init(struct csid_device *csid,
  73                          const struct resources *res, u8 id);
  74
  75 int msm_csid_register_entity(struct csid_device *csid,
  76                              struct v4l2_device *v4l2_dev);
  77
  78 void msm_csid_unregister_entity(struct csid_device *csid);
  79
  80 void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);
  81
  82 #endif /* QC_MSM_CAMSS_CSID_H */