vm_interface.h

/*
* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*    * Redistributions of source code must retain the above copyright notice, this list of
*      conditions and the following disclaimer.
*    * Redistributions in binary form must reproduce the above copyright notice, this list of
*      conditions and the following disclaimer in the documentation and/or other materials provided
*      with the distribution.
*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
*      endorse or promote products derived from this software without specific prior written
*      permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef __VM_INTERFACE_H__
#define __VM_INTERFACE_H__

#define SDM_COMP_SERVICE_ID 5006
#define SDM_COMP_SERVICE_VERSION 1
#define SDM_COMP_SERVICE_INSTANCE 1

#define VM_INTF_REVISION_MAJOR (1)
#define VM_INTF_REVISION_MINOR (4)

#define VM_INTF_VERSION ((uint16_t) ((VM_INTF_REVISION_MAJOR << 8) | VM_INTF_REVISION_MINOR))

enum CommandId {
  kCmdExportDemuraBuffers = 0,
  kCmdSetBacklight = 1,
  kCmdSetDisplayConfig = 2,
  kCmdSetProperties = 3,
  kCmdSetPanelBootParams = 4,
  kCmdMax,
};

enum DisplayType {
  kDisplayTypePrimary     = 0,
  kDisplayTypeSecondary1  = 1,
  kDisplayTypeMax,
};

typedef struct DemuraMemInfo_t {
  int64_t calib_mem_hdl = -1;
  int64_t hfc_mem_hdl = -1;
  uint32_t calib_mem_size = 0;
  uint32_t hfc_mem_size = 0;
  uint64_t panel_id = 0;
  uint32_t calib_payload_size = 0;
  char file_name[128];
} DemuraMemInfo;

typedef struct Property_t {
  char prop_name[48] = { 0 };
  char value[128] = { 0 };
} Property;

typedef struct Properties_t {
  Property property_list[2] = {};
  int count = -1;
} Properties;

typedef struct CommandHeader_t {
  uint16_t version = VM_INTF_VERSION;;
  int32_t id = -1;
} CommandHeader;

typedef struct ResponseHeader_t {
  int32_t id = -1;
  int32_t status = -1;
} ResponseHeader;

// Command and Response structure definitions to start TUI session
typedef struct CmdExportDemuraBuffer_t {
  union {
    DemuraMemInfo demura_mem_info;
    uint32_t reserve[128] = { 0 };
  };
} CmdExportDemuraBuffer;

typedef struct RspExportDemuraBuffer_t {
  union {
    uint32_t reserve[128] = { 0 };
  };
}  RspExportDemuraBuffer;

// Command and Response structure definitions to set backlight for a specified display
typedef struct CmdSetBacklight_t {
  union {
    struct {
      float brightness;
      DisplayType disp_type;
    };
    uint32_t reserve[128] = { 0 };
  };
}  CmdSetBacklight;

typedef struct RspSetBacklight_t  {
  union {
    uint32_t reserve[128] = { 0 };
  };
}  RspSetBacklight;

// Command and Response structure definitions to set display config mode
typedef struct CmdSetDisplayConfigs_t  {
  union {
    struct {
      uint32_t x_pixels;
      uint32_t y_pixels;
      uint32_t v_total;
      uint32_t h_total;
      uint32_t fps;
      int config_idx;
      DisplayType disp_type;
      bool smart_panel;
    };
    uint32_t reserve[128] = { 0 };
  };
} CmdSetDisplayConfigs;

typedef struct RspSetDisplayConfigs_t {
  union {
    uint32_t reserve[128] = { 0 };
  };
} RspSetDisplayConfigs;

// Command and Response structure definitions to propagate the android property
typedef struct CmdSetProperties_t {
  union {
    Properties props;
    uint32_t reserve[128] =  { 0 };
  };
}  CmdSetProperties;

typedef struct RspSetProperties_t {
  union {
    uint32_t reserve[128] = { 0 };
  };
} RspSetProperties;

// Command and Response structure to set panel boot parameters to insmod of display drivers
typedef struct CmdSetPanelBootParam_t {
  union {
    char panel_boot_string[256];
    uint32_t reserve[128] =  { 0 };
  };
} CmdSetPanelBootParam;

typedef struct RspSetPanelBootParam_t {
  union {
    uint32_t reserve[128] = { 0 };
  };
} RspSetPanelBootParam;

struct Command : CommandHeader {
  Command() {}
  union {
    CmdExportDemuraBuffer cmd_export_demura_buf;
    CmdSetBacklight cmd_set_backlight;
    CmdSetDisplayConfigs cmd_set_disp_configs;
    CmdSetProperties cmd_set_properties;
    CmdSetPanelBootParam cmd_set_panel_boot_param;
  };
};

struct Response : ResponseHeader {
  Response() {}
  union {
    RspExportDemuraBuffer rsp_export_demura_buf;
    RspSetBacklight rsp_set_backlight;
    RspSetDisplayConfigs rsp_set_disp_configs;
    RspSetProperties rsp_set_properties;
    RspSetPanelBootParam rsp_set_panel_boot_param;
  };
};

#endif // __VM_INTERFACE_H__