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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * camss-csiphy.h
   4  *
   5  * Qualcomm MSM Camera Subsystem - CSIPHY Module
   6  *
   7  * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
   8  * Copyright (C) 2016-2018 Linaro Ltd.
   9  */
  10 #ifndef QC_MSM_CAMSS_CSIPHY_H
  11 #define QC_MSM_CAMSS_CSIPHY_H
  12
  13 #include <linux/clk.h>
  14 #include <linux/interrupt.h>
  15 #include <media/media-entity.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-mediabus.h>
  18 #include <media/v4l2-subdev.h>
  19
  20 #define MSM_CSIPHY_PAD_SINK 0
  21 #define MSM_CSIPHY_PAD_SRC 1
  22 #define MSM_CSIPHY_PADS_NUM 2
  23
  24 struct csiphy_lane {
  25         u8 pos;
  26         u8 pol;
  27 };
  28
  29 struct csiphy_lanes_cfg {
  30         int num_data;
  31         struct csiphy_lane *data;
  32         struct csiphy_lane clk;
  33 };
  34
  35 struct csiphy_csi2_cfg {
  36         struct csiphy_lanes_cfg lane_cfg;
  37 };
  38
  39 struct csiphy_config {
  40         u8 combo_mode;
  41         u8 csid_id;
  42         struct csiphy_csi2_cfg *csi2;
  43 };
  44
  45 struct csiphy_format_info {
  46         u32 code;
  47         u8 bpp;
  48 };
  49
  50 struct csiphy_formats {
  51         unsigned int nformats;
  52         const struct csiphy_format_info *formats;
  53 };
  54
  55 struct csiphy_device;
  56
  57 struct csiphy_hw_ops {
  58         /*
  59          * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter
  60          * @lane_cfg - CSI2 lane configuration
  61          *
  62          * Return lane mask
  63          */
  64         u8 (*get_lane_mask)(struct csiphy_lanes_cfg *lane_cfg);
  65         void (*hw_version_read)(struct csiphy_device *csiphy,
  66                                 struct device *dev);
  67         void (*reset)(struct csiphy_device *csiphy);
  68         void (*lanes_enable)(struct csiphy_device *csiphy,
  69                              struct csiphy_config *cfg,
  70                              s64 link_freq, u8 lane_mask);
  71         void (*lanes_disable)(struct csiphy_device *csiphy,
  72                               struct csiphy_config *cfg);
  73         irqreturn_t (*isr)(int irq, void *dev);
  74 };
  75
  76 struct csiphy_subdev_resources {
  77         const struct csiphy_hw_ops *hw_ops;
  78         const struct csiphy_formats *formats;
  79 };
  80
  81 struct csiphy_device {
  82         struct camss *camss;
  83         u8 id;
  84         struct v4l2_subdev subdev;
  85         struct media_pad pads[MSM_CSIPHY_PADS_NUM];
  86         void __iomem *base;
  87         void __iomem *base_clk_mux;
  88         u32 irq;
  89         char irq_name[30];
  90         struct camss_clock *clock;
  91         bool *rate_set;
  92         int nclocks;
  93         u32 timer_clk_rate;
  94         struct regulator_bulk_data *supplies;
  95         int num_supplies;
  96         struct csiphy_config cfg;
  97         struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM];
  98         const struct csiphy_subdev_resources *res;
  99 };
 100
 101 struct camss_subdev_resources;
 102
 103 int msm_csiphy_subdev_init(struct camss *camss,
 104                            struct csiphy_device *csiphy,
 105                            const struct camss_subdev_resources *res, u8 id);
 106
 107 int msm_csiphy_register_entity(struct csiphy_device *csiphy,
 108                                struct v4l2_device *v4l2_dev);
 109
 110 void msm_csiphy_unregister_entity(struct csiphy_device *csiphy);
 111
 112 extern const struct csiphy_formats csiphy_formats_8x16;
 113 extern const struct csiphy_formats csiphy_formats_8x96;
 114 extern const struct csiphy_formats csiphy_formats_sdm845;
 115
 116 extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0;
 117 extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0;
 118
 119 #endif /* QC_MSM_CAMSS_CSIPHY_H */