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Commit 3802152e authored by Chris Manton's avatar Chris Manton
Browse files

Pretty print class of device dev_class_text 

Bug: 281420281
Test: net_test_stack_btm64

Change-Id: Ie33d8b1e37bca29dc26a2049e5dfebe79e9bce39
parent 3d376cf6

system/stack/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -1106,6 +1106,7 @@ cc_test { 
        "test/btm/sco_hci_test.cc",

        "test/btm/stack_btm_test.cc",

        "test/common/mock_eatt.cc",

        "test/stack_include_test.cc",

    ],

    static_libs: [

        "libbt-common",

system/stack/include/bt_dev_class.h

+22 −7
Original line number Diff line number Diff line
@@ -96,11 +96,17 @@ inline constexpr DEV_CLASS kDevClassEmpty = {}; 
#define BTM_COD_SERVICE_TELEPHONY 0x4000

#define BTM_COD_SERVICE_INFORMATION 0x8000



/* the COD masks */

#define BTM_COD_MINOR_CLASS_MASK 0xFC

#define BTM_COD_MAJOR_CLASS_MASK 0x1F

#define BTM_COD_SERVICE_CLASS_LO_B 0x00E0

#define BTM_COD_SERVICE_CLASS_MASK 0xFFE0



/* class of device field macros */

#define BTM_COD_MINOR_CLASS(u8, pd) \

  { (u8) = (pd)[2] & 0xFC; }

  { (u8) = (pd)[2] & BTM_COD_MINOR_CLASS_MASK; }

#define BTM_COD_MAJOR_CLASS(u8, pd) \

  { (u8) = (pd)[1] & 0x1F; }

  { (u8) = (pd)[1] & BTM_COD_MAJOR_CLASS_MASK; }

#define BTM_COD_SERVICE_CLASS(u16, pd) \

  {                                    \

    (u16) = (pd)[0];                   \
@@ -116,11 +122,20 @@ inline constexpr DEV_CLASS kDevClassEmpty = {}; 
    (pd)[0] = (sv) >> 8;                                \

  }



/* the COD masks */

#define BTM_COD_MINOR_CLASS_MASK 0xFC

#define BTM_COD_MAJOR_CLASS_MASK 0x1F

#define BTM_COD_SERVICE_CLASS_LO_B 0x00E0

#define BTM_COD_SERVICE_CLASS_MASK 0xFFE0

#ifdef __cplusplus

#include <sstream>

inline std::string dev_class_text(const DEV_CLASS& dev_class) {

  std::ostringstream oss;

  uint8_t mj, mn;

  uint16_t sv;

  BTM_COD_MINOR_CLASS(mn, dev_class);

  BTM_COD_MAJOR_CLASS(mj, dev_class);

  BTM_COD_SERVICE_CLASS(sv, dev_class);

  oss << std::to_string(mj) << "-" << std::to_string(mn) << "-"

      << std::to_string(sv);

  return oss.str();

}

#endif  // __cplusplus



#define DEVCLASS_TO_STREAM(p, a)                      \

  {                                                   \

system/stack/test/stack_include_test.cc

0 → 100644
+64 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2023 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include <gtest/gtest.h>



#include "os/log.h"

#include "stack/include/bt_dev_class.h"



class StackIncludeTest : public ::testing::Test {

 protected:

  void SetUp() override {}



  void TearDown() override {}

};



TEST_F(StackIncludeTest, dev_class_simple_zeros) {

  int mn = 0;

  int mj = 0;

  int sv = 0;

  DEV_CLASS dev_class{0xff};

  FIELDS_TO_COD(dev_class, mn, mj, sv);

  BTM_COD_MINOR_CLASS(mn, dev_class);

  BTM_COD_MAJOR_CLASS(mj, dev_class);

  BTM_COD_SERVICE_CLASS(sv, dev_class);

  ASSERT_EQ(0, mn);

  ASSERT_EQ(0, mj);

  ASSERT_EQ(0, sv);

}



TEST_F(StackIncludeTest, dev_class_simple_ones) {

  int mn = 0xff;

  int mj = 0xff;

  int sv = 0xffff;

  DEV_CLASS dev_class{0x00};

  FIELDS_TO_COD(dev_class, mn, mj, sv);

  BTM_COD_MINOR_CLASS(mn, dev_class);

  BTM_COD_MAJOR_CLASS(mj, dev_class);

  BTM_COD_SERVICE_CLASS(sv, dev_class);

  ASSERT_EQ(252, mn & BTM_COD_MINOR_CLASS_MASK);

  ASSERT_EQ(31, mj & BTM_COD_MAJOR_CLASS_MASK);

  ASSERT_EQ(65472, sv);

}



TEST_F(StackIncludeTest, dev_class_text) {

  int mn = 0xff;

  int mj = 0xff;

  int sv = 0xffff;

  DEV_CLASS dev_class;

  FIELDS_TO_COD(dev_class, mn, mj, sv);

  ASSERT_STREQ("31-252-65472", dev_class_text(dev_class).c_str());

}