LXR linux/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
  24struct csiphy_lane {
  25        u8 pos;
  26        u8 pol;
  27};
  28
  29struct csiphy_lanes_cfg {
  30        int num_data;
  31        struct csiphy_lane *data;
  32        struct csiphy_lane clk;
  33};
  34
  35struct csiphy_csi2_cfg {
  36        struct csiphy_lanes_cfg lane_cfg;
  37};
  38
  39struct csiphy_config {
  40        u8 combo_mode;
  41        u8 csid_id;
  42        struct csiphy_csi2_cfg *csi2;
  43};
  44
  45struct csiphy_device;
  46
  47struct csiphy_hw_ops {
  48        /*
  49         * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter
  50         * @lane_cfg - CSI2 lane configuration
  51         *
  52         * Return lane mask
  53         */
  54        u8 (*get_lane_mask)(struct csiphy_lanes_cfg *lane_cfg);
  55        void (*hw_version_read)(struct csiphy_device *csiphy,
  56                                struct device *dev);
  57        void (*reset)(struct csiphy_device *csiphy);
  58        void (*lanes_enable)(struct csiphy_device *csiphy,
  59                             struct csiphy_config *cfg,
  60                             s64 link_freq, u8 lane_mask);
  61        void (*lanes_disable)(struct csiphy_device *csiphy,
  62                              struct csiphy_config *cfg);
  63        irqreturn_t (*isr)(int irq, void *dev);
  64};
  65
  66struct csiphy_device {
  67        struct camss *camss;
  68        u8 id;
  69        struct v4l2_subdev subdev;
  70        struct media_pad pads[MSM_CSIPHY_PADS_NUM];
  71        void __iomem *base;
  72        void __iomem *base_clk_mux;
  73        u32 irq;
  74        char irq_name[30];
  75        struct camss_clock *clock;
  76        bool *rate_set;
  77        int nclocks;
  78        u32 timer_clk_rate;
  79        struct csiphy_config cfg;
  80        struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM];
  81        const struct csiphy_hw_ops *ops;
  82        const struct csiphy_format *formats;
  83        unsigned int nformats;
  84};
  85
  86struct resources;
  87
  88int msm_csiphy_subdev_init(struct camss *camss,
  89                           struct csiphy_device *csiphy,
  90                           const struct resources *res, u8 id);
  91
  92int msm_csiphy_register_entity(struct csiphy_device *csiphy,
  93                               struct v4l2_device *v4l2_dev);
  94
  95void msm_csiphy_unregister_entity(struct csiphy_device *csiphy);
  96
  97extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0;
  98extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0;
  99
 100#endif /* QC_MSM_CAMSS_CSIPHY_H */
 101