void
FMRadioSeek(const hal::FMRadioSeekDirection& aDirection)
{
struct v4l2_hw_freq_seek seek = {0};
seek.type = V4L2_TUNER_RADIO;
seek.seek_upward = aDirection == hal::FMRadioSeekDirection::FM_RADIO_SEEK_DIRECTION_UP;
/* ICS and older don't have the spacing field */
#if ANDROID_VERSION == 15
seek.reserved[0] = sRadioSettings.spaceType() * 1000;
#else
seek.spacing = sRadioSettings.spaceType() * 1000;
#endif
int rc = ioctl(sRadioFD, VIDIOC_S_HW_FREQ_SEEK, &seek);
if (sMsmFMMode && rc >= 0)
return;
NS_DispatchToMainThread(new RadioUpdate(hal::FM_RADIO_OPERATION_SEEK,
rc < 0 ?
hal::FM_RADIO_OPERATION_STATUS_FAIL :
hal::FM_RADIO_OPERATION_STATUS_SUCCESS));
if (rc < 0) {
HAL_LOG("Could not initiate hardware seek");
return;
}
NS_DispatchToMainThread(new RadioUpdate(hal::FM_RADIO_OPERATION_TUNE,
hal::FM_RADIO_OPERATION_STATUS_SUCCESS));
}
/* Runs on the radio thread */
static void
initTavaruaRadio(hal::FMRadioSettings &aInfo)
{
mozilla::ScopedClose fd(sRadioFD);
char version[64];
int rc;
snprintf(version, sizeof(version), "%d", sTavaruaVersion);
property_set("hw.fm.version", version);
/* Set the mode for soc downloader */
property_set("hw.fm.mode", "normal");
/* start fm_dl service */
property_set("ctl.start", "fm_dl");
/*
* Fix bug 800263. Wait until the FM radio chips initialization is done
* then set other properties, or the system will hang and reboot. This
* work around is from codeaurora
* (git://codeaurora.org/platform/frameworks/base.git).
*/
for (int i = 0; i < 4; ++i) {
sleep(1);
char value[PROPERTY_VALUE_MAX];
property_get("hw.fm.init", value, "0");
if (!strcmp(value, "1")) {
break;
}
}
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_STATE, FM_RECV);
if (rc < 0) {
HAL_LOG(("Unable to turn on radio |%s|", strerror(errno)));
return;
}
int preEmphasis = aInfo.preEmphasis() <= 50;
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_EMPHASIS, preEmphasis);
if (rc) {
HAL_LOG(("Unable to configure preemphasis"));
return;
}
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_RDS_STD, 0);
if (rc) {
HAL_LOG(("Unable to configure RDS"));
return;
}
int spacing;
switch (aInfo.spaceType()) {
case 50:
spacing = FM_CH_SPACE_50KHZ;
break;
case 100:
spacing = FM_CH_SPACE_100KHZ;
break;
case 200:
spacing = FM_CH_SPACE_200KHZ;
break;
default:
HAL_LOG(("Unsupported space value - %d", aInfo.spaceType()));
return;
}
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_SPACING, spacing);
if (rc) {
HAL_LOG(("Unable to configure spacing"));
return;
}
/*
* Frequency conversions
*
* HAL uses units of 1k for frequencies
* V4L2 uses units of 62.5kHz
* Multiplying by (10000 / 625) converts from HAL units to V4L2.
*/
struct v4l2_tuner tuner = {0};
tuner.rangelow = (aInfo.lowerLimit() * 10000) / 625;
tuner.rangehigh = (aInfo.upperLimit() * 10000) / 625;
rc = ioctl(fd, VIDIOC_S_TUNER, &tuner);
if (rc < 0) {
HAL_LOG(("Unable to adjust band limits"));
return;
}
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_REGION, TAVARUA_REGION_OTHER);
if (rc < 0) {
HAL_LOG(("Unable to configure region"));
return;
}
// Some devices do not support analog audio routing. This should be
// indicated by the 'ro.moz.fm.noAnalog' property at build time.
char propval[PROPERTY_VALUE_MAX];
property_get("ro.moz.fm.noAnalog", propval, "");
bool noAnalog = !strcmp(propval, "true");
rc = setControl(V4L2_CID_PRIVATE_TAVARUA_SET_AUDIO_PATH,
noAnalog ? FM_DIGITAL_PATH : FM_ANALOG_PATH);
if (rc < 0) {
HAL_LOG(("Unable to set audio path"));
return;
}
if (!noAnalog) {
/* Set the mode for soc downloader */
property_set("hw.fm.mode", "config_dac");
/* Use analog mode FM */
property_set("hw.fm.isAnalog", "true");
/* start fm_dl service */
property_set("ctl.start", "fm_dl");
for (int i = 0; i < 4; ++i) {
sleep(1);
char value[PROPERTY_VALUE_MAX];
property_get("hw.fm.init", value, "0");
if (!strcmp(value, "1")) {
break;
}
}
}
fd.forget();
sRadioEnabled = true;
}