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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * camss-csid.h
   4  *
   5  * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module
   6  *
   7  * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
   8  * Copyright (C) 2015-2018 Linaro Ltd.
   9  */
  10 #ifndef QC_MSM_CAMSS_CSID_H
  11 #define QC_MSM_CAMSS_CSID_H
  12
  13 #include <linux/clk.h>
  14 #include <media/media-entity.h>
  15 #include <media/v4l2-ctrls.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-mediabus.h>
  18 #include <media/v4l2-subdev.h>
  19
  20 #define MSM_CSID_PAD_SINK 0
  21 #define MSM_CSID_PAD_SRC 1
  22 #define MSM_CSID_PADS_NUM 2
  23
  24 enum csid_payload_mode {
  25         CSID_PAYLOAD_MODE_INCREMENTING = 0,
  26         CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,
  27         CSID_PAYLOAD_MODE_ALL_ZEROES = 2,
  28         CSID_PAYLOAD_MODE_ALL_ONES = 3,
  29         CSID_PAYLOAD_MODE_RANDOM = 4,
  30         CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,
  31 };
  32
  33 struct csid_testgen_config {
  34         u8 enabled;
  35         enum csid_payload_mode payload_mode;
  36 };
  37
  38 struct csid_phy_config {
  39         u8 csiphy_id;
  40         u8 lane_cnt;
  41         u32 lane_assign;
  42 };
  43
  44 struct csid_device {
  45         struct camss *camss;
  46         u8 id;
  47         struct v4l2_subdev subdev;
  48         struct media_pad pads[MSM_CSID_PADS_NUM];
  49         void __iomem *base;
  50         u32 irq;
  51         char irq_name[30];
  52         struct camss_clock *clock;
  53         int nclocks;
  54         struct regulator *vdda;
  55         struct completion reset_complete;
  56         struct csid_testgen_config testgen;
  57         struct csid_phy_config phy;
  58         struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM];
  59         struct v4l2_ctrl_handler ctrls;
  60         struct v4l2_ctrl *testgen_mode;
  61         const struct csid_format *formats;
  62         unsigned int nformats;
  63 };
  64
  65 struct resources;
  66
  67 int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid,
  68                          const struct resources *res, u8 id);
  69
  70 int msm_csid_register_entity(struct csid_device *csid,
  71                              struct v4l2_device *v4l2_dev);
  72
  73 void msm_csid_unregister_entity(struct csid_device *csid);
  74
  75 void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);
  76
  77 #endif /* QC_MSM_CAMSS_CSID_H */