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Commit 0131ce5d authored by Zach Johnson's avatar Zach Johnson
Browse files

rusty-packets: generate sample enums and make this work end to end 

Bug: 171749953
Tag: #gd-refactor
Test: gd/cert/run --rhost SimpleHalTest
Change-Id: I9467b6871b3072a64d06bcd8b79887bc6e85c010
parent 6aea6071

system/gd/Android.bp

+22 −0
Original line number Diff line number Diff line
@@ -448,6 +448,28 @@ genrule { 
    ],

}



genrule {

    name: "BluetoothGeneratedPackets_rust",

    tools: [

        "bluetooth_packetgen",

    ],

    cmd: "$(location bluetooth_packetgen) --include=packages/modules/Bluetooth/system/gd --out=$(genDir) $(in) --rust",

    srcs: [

        "hci/hci_packets.pdl",

    ],

    out: [

        "hci/hci_packets.rs",

    ],

}



rust_library {

    name: "libbt_packets",

    crate_name: "bt_packets",

    srcs: ["rust/packets/lib.rs", ":BluetoothGeneratedPackets_rust"],

    edition: "2018",

    host_supported: true,

}



// Generates binary schema data to be bundled and source file generated

genrule {

    name: "BluetoothGeneratedDumpsysBinarySchema_bfbs",

system/gd/hci/hci_packets.pdl

+2 −2
Original line number Diff line number Diff line
@@ -4622,7 +4622,7 @@ packet VendorSpecificEvent : EventPacket (event_code = VENDOR_SPECIFIC) { 
  _payload_,

}



enum qualityReportId : 8 {

enum QualityReportId : 8 {

  MONITOR_MODE = 0x01,

  APPROACH_LSTO = 0x02,

  A2DP_AUDIO_CHOPPY = 0x03,
@@ -4634,7 +4634,7 @@ enum qualityReportId : 8 { 
}



packet BqrEvent : VendorSpecificEvent (subevent_code = BQR_EVENT) {

  quality_report_id : qualityReportId,

  quality_report_id : QualityReportId,

  _payload_,

}

system/gd/packet/parser/enum_gen.cc

+8 −0
Original line number Diff line number Diff line
@@ -59,3 +59,11 @@ void EnumGen::GenLogging(std::ostream& stream) { 
  stream << "  return os << " << e_.name_ << "Text(param);";

  stream << "}\n";

}



void EnumGen::GenRustDef(std::ostream& stream) {

  stream << "pub enum " << e_.name_ << " {";

  for (const auto& pair : e_.constants_) {

    stream << util::ConstantCaseToCamelCase(pair.second) << " = 0x" << std::hex << pair.first << std::dec << ",";

  }

  stream << "}";

}

system/gd/packet/parser/enum_gen.h

+2 −0
Original line number Diff line number Diff line
@@ -31,5 +31,7 @@ class EnumGen { 


  void GenLogging(std::ostream& stream);



  void GenRustDef(std::ostream& stream);



  EnumDef e_;

};

system/gd/packet/parser/gen_rust.cc

+11 −2
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ 
#include "declarations.h"



bool generate_rust_source_one_file(

    __attribute__((unused)) const Declarations& decls,

    const Declarations& decls,

    const std::filesystem::path& input_file,

    const std::filesystem::path& include_dir,

    const std::filesystem::path& out_dir,
@@ -43,7 +43,16 @@ bool generate_rust_source_one_file( 
    return false;

  }



  out_file << "// @generated rust packets from " << input_file.filename().string();

  out_file << "// @generated rust packets from " << input_file.filename().string() << "\n\n";



  for (const auto& e : decls.type_defs_queue_) {

    if (e.second->GetDefinitionType() == TypeDef::Type::ENUM) {

      const auto* enum_def = dynamic_cast<const EnumDef*>(e.second);

      EnumGen gen(*enum_def);

      gen.GenRustDef(out_file);

      out_file << "\n\n";

    }

  }



  out_file.close();

  return true;