| /* |
| * Copyright (c) 2009-2011, 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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. |
| */ |
| |
| package qcom.fmradio; |
| |
| import android.util.Log; |
| import android.os.SystemProperties; |
| |
| |
| /** |
| * |
| * Class to be used when changing radio settings |
| * @hide |
| */ |
| public class FmConfig { |
| |
| /* V4l2 Controls */ |
| private static final int V4L2_CID_PRIVATE_BASE = 0x8000000; |
| private static final int V4L2_CID_PRIVATE_TAVARUA_REGION = V4L2_CID_PRIVATE_BASE + 7; |
| private static final int V4L2_CID_PRIVATE_TAVARUA_EMPHASIS = V4L2_CID_PRIVATE_BASE + 12; |
| private static final int V4L2_CID_PRIVATE_TAVARUA_RDS_STD = V4L2_CID_PRIVATE_BASE + 13; |
| private static final int V4L2_CID_PRIVATE_TAVARUA_SPACING = V4L2_CID_PRIVATE_BASE + 14; |
| private static final int V4L2_CID_PRIVATE_TAVARUA_SRCH_ALGORITHM = V4L2_CID_PRIVATE_BASE + 0x2B; |
| |
| private static final String TAG = "FmConfig"; |
| |
| |
| |
| private int mRadioBand; |
| /** |
| * FM pre-emphasis/de-emphasis |
| * |
| * Possible Values: |
| * |
| * FmTransceiver.FM_DE_EMP75, |
| * FmTransceiver.FM_DE_EMP50 |
| */ |
| private int mEmphasis; |
| /** |
| * Channel spacing |
| * |
| * Possible Values: |
| * |
| * FmTransceiver.FM_CHSPACE_200_KHZ, |
| * FmTransceiver.FM_CHSPACE_100_KHZ, |
| * FmTransceiver.FM_CHSPACE_50_KHZ |
| */ |
| private int mChSpacing; |
| /** |
| * RDS standard type |
| * |
| * Possible Values: |
| * |
| * FmTransceiver.FM_RDS_STD_RBDS, |
| * FmTransceiver.FM_RDS_STD_RDS, |
| * FmTransceiver.FM_RDS_STD_NONE |
| */ |
| private int mRdsStd; |
| |
| /** |
| * FM Frequency Band Lower Limit in KHz |
| */ |
| private int mBandLowerLimit; |
| /** |
| * FM Frequency Band Upper Limit in KHz |
| */ |
| private int mBandUpperLimit; |
| |
| public int getRadioBand(){ |
| return mRadioBand; |
| } |
| |
| public void setRadioBand (int band){ |
| mRadioBand = band; |
| } |
| |
| public int getEmphasis(){ |
| return mEmphasis; |
| } |
| |
| public void setEmphasis (int emp){ |
| mEmphasis = emp; |
| } |
| |
| public int getChSpacing (){ |
| return mChSpacing; |
| } |
| |
| public void setChSpacing(int spacing) { |
| mChSpacing = spacing; |
| } |
| |
| public int getRdsStd () { |
| return mRdsStd; |
| } |
| |
| public void setRdsStd (int rdsStandard) { |
| mRdsStd = rdsStandard; |
| } |
| |
| public int getLowerLimit(){ |
| return mBandLowerLimit; |
| } |
| |
| public void setLowerLimit(int lowLimit){ |
| mBandLowerLimit = lowLimit; |
| } |
| |
| public int getUpperLimit(){ |
| return mBandUpperLimit; |
| } |
| |
| public void setUpperLimit(int upLimit){ |
| mBandUpperLimit = upLimit; |
| } |
| |
| /* |
| * fmConfigure() |
| * This method call v4l2 private controls to set regional settings for the |
| * FM core |
| */ |
| protected static boolean fmConfigure (final int fd, final FmConfig configSettings) { |
| |
| int re; |
| |
| Log.v (TAG, "In fmConfigure"); |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_EMPHASIS, configSettings.getEmphasis()); |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_RDS_STD, configSettings.getRdsStd() ); |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_SPACING, configSettings.getChSpacing() ); |
| |
| boolean fmSrchAlg = SystemProperties.getBoolean("persist.fm.new.srch.algorithm",false); |
| if (fmSrchAlg) { |
| Log.v (TAG, "fmConfigure() : FM Srch Alg : NEW "); |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_SRCH_ALGORITHM, 1); |
| } |
| else { |
| Log.v (TAG, "fmConfigure() : FM Srch Alg : OLD "); |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_SRCH_ALGORITHM, 0); |
| } |
| if (re < 0) |
| return false; |
| |
| re = FmReceiverJNI.setBandNative (fd, configSettings.getLowerLimit(), configSettings.getUpperLimit()); |
| if (re < 0) |
| return false; |
| |
| re = FmReceiverJNI.setControlNative (fd, V4L2_CID_PRIVATE_TAVARUA_REGION, configSettings.mRadioBand); |
| /* setControlNative for V4L2_CID_PRIVATE_TAVARUA_REGION triggers the config change*/ |
| if (re < 0) |
| return false; |
| |
| return true; |
| } |
| |
| } |