root/drivers/media/platform/qcom/camss/camss.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * camss.h
   4  *
   5  * Qualcomm MSM Camera Subsystem - Core
   6  *
   7  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
   8  * Copyright (C) 2015-2018 Linaro Ltd.
   9  */
  10 #ifndef QC_MSM_CAMSS_H
  11 #define QC_MSM_CAMSS_H
  12 
  13 #include <linux/device.h>
  14 #include <linux/types.h>
  15 #include <media/v4l2-async.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-subdev.h>
  18 #include <media/media-device.h>
  19 #include <media/media-entity.h>
  20 
  21 #include "camss-csid.h"
  22 #include "camss-csiphy.h"
  23 #include "camss-ispif.h"
  24 #include "camss-vfe.h"
  25 
  26 #define to_camss(ptr_module)    \
  27         container_of(ptr_module, struct camss, ptr_module)
  28 
  29 #define to_device(ptr_module)   \
  30         (to_camss(ptr_module)->dev)
  31 
  32 #define module_pointer(ptr_module, index)       \
  33         ((const struct ptr_module##_device (*)[]) &(ptr_module[-(index)]))
  34 
  35 #define to_camss_index(ptr_module, index)       \
  36         container_of(module_pointer(ptr_module, index), \
  37                      struct camss, ptr_module)
  38 
  39 #define to_device_index(ptr_module, index)      \
  40         (to_camss_index(ptr_module, index)->dev)
  41 
  42 #define CAMSS_RES_MAX 17
  43 
  44 struct resources {
  45         char *regulator[CAMSS_RES_MAX];
  46         char *clock[CAMSS_RES_MAX];
  47         u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX];
  48         char *reg[CAMSS_RES_MAX];
  49         char *interrupt[CAMSS_RES_MAX];
  50 };
  51 
  52 struct resources_ispif {
  53         char *clock[CAMSS_RES_MAX];
  54         char *clock_for_reset[CAMSS_RES_MAX];
  55         char *reg[CAMSS_RES_MAX];
  56         char *interrupt;
  57 };
  58 
  59 enum pm_domain {
  60         PM_DOMAIN_VFE0,
  61         PM_DOMAIN_VFE1,
  62         PM_DOMAIN_COUNT
  63 };
  64 
  65 enum camss_version {
  66         CAMSS_8x16,
  67         CAMSS_8x96,
  68 };
  69 
  70 struct camss {
  71         enum camss_version version;
  72         struct v4l2_device v4l2_dev;
  73         struct v4l2_async_notifier notifier;
  74         struct media_device media_dev;
  75         struct device *dev;
  76         int csiphy_num;
  77         struct csiphy_device *csiphy;
  78         int csid_num;
  79         struct csid_device *csid;
  80         struct ispif_device ispif;
  81         int vfe_num;
  82         struct vfe_device *vfe;
  83         atomic_t ref_count;
  84         struct device *genpd[PM_DOMAIN_COUNT];
  85         struct device_link *genpd_link[PM_DOMAIN_COUNT];
  86 };
  87 
  88 struct camss_camera_interface {
  89         u8 csiphy_id;
  90         struct csiphy_csi2_cfg csi2;
  91 };
  92 
  93 struct camss_async_subdev {
  94         struct v4l2_async_subdev asd; /* must be first */
  95         struct camss_camera_interface interface;
  96 };
  97 
  98 struct camss_clock {
  99         struct clk *clk;
 100         const char *name;
 101         u32 *freq;
 102         u32 nfreqs;
 103 };
 104 
 105 void camss_add_clock_margin(u64 *rate);
 106 int camss_enable_clocks(int nclocks, struct camss_clock *clock,
 107                         struct device *dev);
 108 void camss_disable_clocks(int nclocks, struct camss_clock *clock);
 109 struct media_entity *camss_find_sensor(struct media_entity *entity);
 110 int camss_get_pixel_clock(struct media_entity *entity, u32 *pixel_clock);
 111 int camss_pm_domain_on(struct camss *camss, int id);
 112 void camss_pm_domain_off(struct camss *camss, int id);
 113 void camss_delete(struct camss *camss);
 114 
 115 #endif /* QC_MSM_CAMSS_H */