Bug 864327 - Support FM RDS in WebAPI, r=ehsan,pzhang,khuey

This commit is contained in:
Michael Wu 2014-09-30 12:57:52 -04:00
Родитель 86e3b61ea2
Коммит bb45bd3e0a
12 изменённых файлов: 998 добавлений и 1 удалений

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@ -796,6 +796,7 @@ GK_ATOM(onMozMousePixelScroll, "onMozMousePixelScroll")
GK_ATOM(onMozScrolledAreaChanged, "onMozScrolledAreaChanged")
GK_ATOM(onmoznetworkupload, "onmoznetworkupload")
GK_ATOM(onmoznetworkdownload, "onmoznetworkdownload")
GK_ATOM(onnewrdsgroup, "onnewrdsgroup")
GK_ATOM(onnoupdate, "onnoupdate")
GK_ATOM(onobsolete, "onobsolete")
GK_ATOM(ononline, "ononline")
@ -812,11 +813,16 @@ GK_ATOM(onpairingconfirmationreq, "onpairingconfirmationreq")
GK_ATOM(onpairingconsentreq, "onpairingconsentreq")
GK_ATOM(onpaste, "onpaste")
GK_ATOM(onpendingchange, "onpendingchange")
GK_ATOM(onpichange, "onpichange")
GK_ATOM(onpopuphidden, "onpopuphidden")
GK_ATOM(onpopuphiding, "onpopuphiding")
GK_ATOM(onpopupshowing, "onpopupshowing")
GK_ATOM(onpopupshown, "onpopupshown")
GK_ATOM(onpschange, "onpschange")
GK_ATOM(onptychange, "onptychange")
GK_ATOM(onradiostatechange, "onradiostatechange")
GK_ATOM(onrdsdisabled, "onrdsdisabled")
GK_ATOM(onrdsenabled, "onrdsenabled")
GK_ATOM(onreaderror, "onreaderror")
GK_ATOM(onreadsuccess, "onreadsuccess")
GK_ATOM(onready, "onready")
@ -831,6 +837,7 @@ GK_ATOM(onrequestmediaplaystatus, "onrequestmediaplaystatus")
GK_ATOM(onreset, "onreset")
GK_ATOM(onresuming, "onresuming")
GK_ATOM(onresize, "onresize")
GK_ATOM(onrtchange, "onrtchange")
GK_ATOM(onscostatuschanged, "onscostatuschanged")
GK_ATOM(onscroll, "onscroll")
GK_ATOM(onselect, "onselect")

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@ -13,6 +13,7 @@
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/PFMRadioChild.h"
#include "mozilla/dom/FMRadioService.h"
#include "mozilla/dom/TypedArray.h"
#include "DOMRequest.h"
#include "nsDOMClassInfo.h"
#include "nsIDocShell.h"
@ -105,6 +106,7 @@ NS_IMPL_ISUPPORTS_INHERITED0(FMRadioRequest, DOMRequest)
FMRadio::FMRadio()
: mHeadphoneState(SWITCH_STATE_OFF)
, mRdsGroupMask(0)
, mAudioChannelAgentEnabled(false)
, mHasInternalAntenna(false)
, mIsShutdown(false)
@ -220,6 +222,28 @@ FMRadio::Notify(const FMRadioEventType& aType)
DispatchTrustedEvent(NS_LITERAL_STRING("disabled"));
}
break;
case RDSEnabledChanged:
if (RdsEnabled()) {
DispatchTrustedEvent(NS_LITERAL_STRING("rdsenabled"));
} else {
DispatchTrustedEvent(NS_LITERAL_STRING("rdsdisabled"));
}
break;
case PIChanged:
DispatchTrustedEvent(NS_LITERAL_STRING("pichange"));
break;
case PSChanged:
DispatchTrustedEvent(NS_LITERAL_STRING("pschange"));
break;
case RadiotextChanged:
DispatchTrustedEvent(NS_LITERAL_STRING("rtchange"));
break;
case PTYChanged:
DispatchTrustedEvent(NS_LITERAL_STRING("ptychange"));
break;
case NewRDSGroup:
DispatchTrustedEvent(NS_LITERAL_STRING("newrdsgroup"));
break;
default:
MOZ_CRASH();
}
@ -232,6 +256,12 @@ FMRadio::Enabled()
return IFMRadioService::Singleton()->IsEnabled();
}
bool
FMRadio::RdsEnabled()
{
return IFMRadioService::Singleton()->IsRDSEnabled();
}
bool
FMRadio::AntennaAvailable() const
{
@ -265,6 +295,69 @@ FMRadio::ChannelWidth() const
return IFMRadioService::Singleton()->GetChannelWidth();
}
uint32_t
FMRadio::RdsGroupMask() const
{
return mRdsGroupMask;
}
void
FMRadio::SetRdsGroupMask(uint32_t aRdsGroupMask)
{
mRdsGroupMask = aRdsGroupMask;
IFMRadioService::Singleton()->SetRDSGroupMask(aRdsGroupMask);
}
Nullable<unsigned short>
FMRadio::GetPi() const
{
return IFMRadioService::Singleton()->GetPi();
}
Nullable<uint8_t>
FMRadio::GetPty() const
{
return IFMRadioService::Singleton()->GetPty();
}
void
FMRadio::GetPs(DOMString& aPsname) const
{
if (!IFMRadioService::Singleton()->GetPs(aPsname)) {
aPsname.SetNull();
}
}
void
FMRadio::GetRt(DOMString& aRadiotext) const
{
if (!IFMRadioService::Singleton()->GetRt(aRadiotext)) {
aRadiotext.SetNull();
}
}
void
FMRadio::GetRdsgroup(JSContext* cx, JS::MutableHandle<JSObject*> retval)
{
uint64_t group;
if (!IFMRadioService::Singleton()->GetRdsgroup(group)) {
return;
}
JSObject *rdsgroup = Uint16Array::Create(cx, this, 4);
uint16_t *data = JS_GetUint16ArrayData(rdsgroup);
data[3] = group & 0xFFFF;
group >>= 16;
data[2] = group & 0xFFFF;
group >>= 16;
data[1] = group & 0xFFFF;
group >>= 16;
data[0] = group & 0xFFFF;
JS::ExposeObjectToActiveJS(rdsgroup);
retval.set(rdsgroup);
}
already_AddRefed<DOMRequest>
FMRadio::Enable(double aFrequency)
{
@ -350,6 +443,32 @@ FMRadio::CancelSeek()
return r.forget();
}
already_AddRefed<DOMRequest>
FMRadio::EnableRDS()
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return nullptr;
}
nsRefPtr<FMRadioRequest> r = new FMRadioRequest(win, this);
IFMRadioService::Singleton()->EnableRDS(r);
return r.forget();
}
already_AddRefed<DOMRequest>
FMRadio::DisableRDS()
{
nsCOMPtr<nsPIDOMWindow> win = GetOwner();
if (!win) {
return nullptr;
}
nsRefPtr<FMRadioRequest> r = new FMRadioRequest(win, this);
FMRadioService::Singleton()->DisableRDS(r);
return r.forget();
}
NS_IMETHODIMP
FMRadio::HandleEvent(nsIDOMEvent* aEvent)
{

Просмотреть файл

@ -55,6 +55,8 @@ public:
static bool Enabled();
bool RdsEnabled();
bool AntennaAvailable() const;
Nullable<double> GetFrequency() const;
@ -65,6 +67,20 @@ public:
double ChannelWidth() const;
uint32_t RdsGroupMask() const;
void SetRdsGroupMask(uint32_t aRdsGroupMask);
Nullable<unsigned short> GetPi() const;
Nullable<uint8_t> GetPty() const;
void GetPs(DOMString& aPsname) const;
void GetRt(DOMString& aRadiotext) const;
void GetRdsgroup(JSContext* cx, JS::MutableHandle<JSObject*> retval);
already_AddRefed<DOMRequest> Enable(double aFrequency);
already_AddRefed<DOMRequest> Disable();
@ -77,10 +93,21 @@ public:
already_AddRefed<DOMRequest> CancelSeek();
already_AddRefed<DOMRequest> EnableRDS();
already_AddRefed<DOMRequest> DisableRDS();
IMPL_EVENT_HANDLER(enabled);
IMPL_EVENT_HANDLER(disabled);
IMPL_EVENT_HANDLER(rdsenabled);
IMPL_EVENT_HANDLER(rdsdisabled);
IMPL_EVENT_HANDLER(antennaavailablechange);
IMPL_EVENT_HANDLER(frequencychange);
IMPL_EVENT_HANDLER(pichange);
IMPL_EVENT_HANDLER(ptychange);
IMPL_EVENT_HANDLER(pschange);
IMPL_EVENT_HANDLER(rtchange);
IMPL_EVENT_HANDLER(newrdsgroup);
// nsIDOMEventListener
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
@ -92,6 +119,7 @@ private:
void EnableAudioChannelAgent();
hal::SwitchState mHeadphoneState;
uint32_t mRdsGroupMask;
bool mAudioChannelAgentEnabled;
bool mHasInternalAntenna;
bool mIsShutdown;

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@ -30,7 +30,13 @@ BEGIN_FMRADIO_NAMESPACE
enum FMRadioEventType
{
FrequencyChanged,
EnabledChanged
EnabledChanged,
RDSEnabledChanged,
PIChanged,
PSChanged,
PTYChanged,
RadiotextChanged,
NewRDSGroup
};
typedef mozilla::Observer<FMRadioEventType> FMRadioEventObserver;

Просмотреть файл

@ -26,6 +26,8 @@
#define MOZSETTINGS_CHANGED_ID "mozsettings-changed"
#define SETTING_KEY_AIRPLANEMODE_ENABLED "airplaneMode.enabled"
#define DOM_PARSED_RDS_GROUPS ((0x2 << 30) | (0x3 << 4) | (0x3 << 0))
using namespace mozilla::hal;
using mozilla::Preferences;
@ -49,9 +51,26 @@ FMRadioService::FMRadioService()
, mState(Disabled)
, mHasReadAirplaneModeSetting(false)
, mAirplaneModeEnabled(false)
, mRDSEnabled(false)
, mPendingRequest(nullptr)
, mObserverList(FMRadioEventObserverList())
, mRDSGroupMask(0)
, mLastPI(0)
, mPI(0)
, mPTY(0)
, mPISet(false)
, mPTYSet(false)
, mRDSLock("FMRadioService::mRDSLock")
, mPSNameState(0)
, mRadiotextAB(false)
, mRDSGroupSet(false)
, mPSNameSet(false)
, mRadiotextSet(false)
{
memset(mPSName, 0, sizeof(mPSName));
memset(mRadiotext, 0, sizeof(mRadiotext));
memset(mTempPSName, 0, sizeof(mTempPSName));
memset(mTempRadiotext, 0, sizeof(mTempRadiotext));
// Read power state and frequency from Hal.
mEnabled = IsFMRadioOn();
@ -110,10 +129,12 @@ FMRadioService::FMRadioService()
}
RegisterFMRadioObserver(this);
RegisterFMRadioRDSObserver(this);
}
FMRadioService::~FMRadioService()
{
UnregisterFMRadioRDSObserver(this);
UnregisterFMRadioObserver(this);
}
@ -277,6 +298,21 @@ private:
FMRadioSeekDirection mDirection;
};
class NotifyRunnable MOZ_FINAL : public nsRunnable
{
public:
NotifyRunnable(FMRadioEventType aType) : mType(aType) { }
NS_IMETHOD Run()
{
FMRadioService::Singleton()->NotifyFMRadioEvent(mType);
return NS_OK;
}
private:
FMRadioEventType mType;
};
void
FMRadioService::TransitionState(const FMRadioResponseType& aResponse,
FMRadioState aState)
@ -374,6 +410,13 @@ FMRadioService::IsEnabled() const
return IsFMRadioOn();
}
bool
FMRadioService::IsRDSEnabled() const
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
return mRDSEnabled;
}
double
FMRadioService::GetFrequency() const
{
@ -407,6 +450,54 @@ FMRadioService::GetChannelWidth() const
return mChannelWidthInKHz / 1000.0;
}
Nullable<unsigned short>
FMRadioService::GetPi() const
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
if (!mPISet) {
return Nullable<unsigned short>();
}
return Nullable<unsigned short>(mPI);
}
Nullable<uint8_t>
FMRadioService::GetPty() const
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
if (!mPTYSet) {
return Nullable<uint8_t>();
}
return Nullable<uint8_t>(mPTY);
}
bool
FMRadioService::GetPs(nsString& aPSName)
{
MutexAutoLock lock(mRDSLock);
if (mPSNameSet) {
aPSName = nsString(mPSName);
}
return mPSNameSet;
}
bool
FMRadioService::GetRt(nsString& aRadiotext)
{
MutexAutoLock lock(mRDSLock);
if (mRadiotextSet) {
aRadiotext = nsString(mRadiotext);
}
return mRadiotextSet;
}
bool
FMRadioService::GetRdsgroup(uint64_t& aRDSGroup)
{
MutexAutoLock lock(mRDSLock);
aRDSGroup = mRDSGroup;
return mRDSGroupSet;
}
void
FMRadioService::Enable(double aFrequencyInMHz,
FMRadioReplyRunnable* aReplyRunnable)
@ -679,6 +770,47 @@ FMRadioService::CancelSeek(FMRadioReplyRunnable* aReplyRunnable)
NS_DispatchToMainThread(aReplyRunnable);
}
void
FMRadioService::SetRDSGroupMask(uint32_t aRDSGroupMask)
{
mRDSGroupMask = aRDSGroupMask;
if (IsFMRadioOn()) {
hal::EnableRDS(mRDSGroupMask | DOM_PARSED_RDS_GROUPS);
}
}
void
FMRadioService::EnableRDS(FMRadioReplyRunnable* aReplyRunnable)
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
MOZ_ASSERT(aReplyRunnable);
mRDSEnabled = true;
if (IsFMRadioOn()) {
hal::EnableRDS(mRDSGroupMask | DOM_PARSED_RDS_GROUPS);
}
aReplyRunnable->SetReply(SuccessResponse());
NS_DispatchToMainThread(aReplyRunnable);
NS_DispatchToMainThread(new NotifyRunnable(RDSEnabledChanged));
}
void
FMRadioService::DisableRDS(FMRadioReplyRunnable* aReplyRunnable)
{
MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
MOZ_ASSERT(aReplyRunnable);
mRDSEnabled = false;
if (IsFMRadioOn()) {
hal::DisableRDS();
}
aReplyRunnable->SetReply(SuccessResponse());
NS_DispatchToMainThread(aReplyRunnable);
NS_DispatchToMainThread(new NotifyRunnable(RDSEnabledChanged));
}
NS_IMETHODIMP
FMRadioService::Observe(nsISupports* aSubject,
const char* aTopic,
@ -760,10 +892,18 @@ FMRadioService::Notify(const FMRadioOperationInformation& aInfo)
// The frequency was changed from '0' to some meaningful number, so we
// should send the `FrequencyChanged` event manually.
NotifyFMRadioEvent(FrequencyChanged);
if (mRDSEnabled) {
hal::EnableRDS(mRDSGroupMask | DOM_PARSED_RDS_GROUPS);
}
break;
case FM_RADIO_OPERATION_DISABLE:
MOZ_ASSERT(mState == Disabling);
mPISet = false;
mPTYSet = false;
memset(mPSName, 0, sizeof(mPSName));
memset(mRadiotext, 0, sizeof(mRadiotext));
TransitionState(SuccessResponse(), Disabled);
UpdatePowerState();
break;
@ -785,6 +925,274 @@ FMRadioService::Notify(const FMRadioOperationInformation& aInfo)
}
}
/* This is defined by the RDS standard */
static const uint16_t sRDSToUnicodeMap[256] = {
// The lower half differs from ASCII in 0x1F, 0x24, 0x5E, 0x7E
// Most control characters are replaced with 0x20 (space)
// 0x0-
0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
0x0020, 0x0009, 0x000A, 0x000B, 0x0020, 0x00D0, 0x0020, 0x0020,
// 0x1-
0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
0x0020, 0x0020, 0x0020, 0x001B, 0x0020, 0x0020, 0x0020, 0x00AD,
// 0x2-
0x0020, 0x0021, 0x0022, 0x0023, 0x00A4, 0x0025, 0x0026, 0x0027,
0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F,
// 0x3-
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
// 0x4-
0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F,
// 0x5-
0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x2015, 0x005F,
// 0x6-
0x2551, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
// 0x7-
0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x00AF, 0x007F,
// 0x8-
0x00E1, 0x00E0, 0x00E9, 0x00E8, 0x00ED, 0x00EC, 0x00F3, 0x00F2,
0x00FA, 0x00F9, 0x00D1, 0x00C7, 0x015E, 0x00DF, 0x00A1, 0x0132,
// 0x9-
0x00E2, 0x00E4, 0x00EA, 0x00EB, 0x00EE, 0x00EF, 0x00F4, 0x00F6,
0x00FB, 0x00FC, 0x00F1, 0x00E7, 0x015F, 0x011F, 0x0131, 0x0133,
// 0xA-
0x00AA, 0x03B1, 0x00A9, 0x2030, 0x011E, 0x011B, 0x0148, 0x0151,
0x03C0, 0x20AC, 0x00A3, 0x0024, 0x2190, 0x2191, 0x2192, 0x2193,
// 0xB-
0x00BA, 0x00B9, 0x00B2, 0x00B3, 0x00B1, 0x0130, 0x0144, 0x0171,
0x03BC, 0x00BF, 0x00F7, 0x00B0, 0x00BC, 0x00BD, 0x00BE, 0x00A7,
// 0xC-
0x00C1, 0x00C0, 0x00C9, 0x00C8, 0x00CD, 0x00CC, 0x00D3, 0x00D2,
0x00DA, 0x00D9, 0x0158, 0x010C, 0x0160, 0x017D, 0x00D0, 0x013F,
// 0xD-
0x00C2, 0x00C4, 0x00CA, 0x00CB, 0x00CE, 0x00CF, 0x00D4, 0x00D6,
0x00DB, 0x00DC, 0x0159, 0x010D, 0x0161, 0x017E, 0x0111, 0x0140,
// 0xE-
0x00C3, 0x00C5, 0x00C6, 0x0152, 0x0177, 0x00DD, 0x00D5, 0x00D8,
0x00DE, 0x014A, 0x0154, 0x0106, 0x015A, 0x0179, 0x0166, 0x00F0,
// 0xF-
0x00E3, 0x00E5, 0x00E6, 0x0153, 0x0175, 0x00FD, 0x00F5, 0x00F8,
0x00FE, 0x014B, 0x0155, 0x0107, 0x015B, 0x017A, 0x0167, 0x0020,
};
void
FMRadioService::Notify(const FMRadioRDSGroup& aRDSGroup)
{
uint16_t blocks[4];
blocks[0] = aRDSGroup.blockA();
blocks[1] = aRDSGroup.blockB();
blocks[2] = aRDSGroup.blockC();
blocks[3] = aRDSGroup.blockD();
/* Bit 11 in block B determines whether this is a type B group. */
uint16_t lastPI = blocks[1] & (1 << 11) ? blocks[2] : mLastPI;
/* Update PI if it's not set or if we get two PI with the new value. */
if ((mPI != blocks[0] && lastPI == blocks[0]) || !mPISet) {
mPI = blocks[0];
if (!mPISet) {
mPSNameState = 0;
mRadiotextState = 0;
memset(mTempPSName, 0, sizeof(mTempPSName));
memset(mTempRadiotext, 0, sizeof(mTempRadiotext));
}
mPISet = true;
NS_DispatchToMainThread(new NotifyRunnable(PIChanged));
}
mLastPI = blocks[0];
/* PTY is also updated using the same logic as PI */
uint16_t pty = (blocks[1] >> 5) & 0x1F;
if ((mPTY != pty && pty == mLastPTY) || !mPTYSet) {
mPTY = pty;
mPTYSet = true;
NS_DispatchToMainThread(new NotifyRunnable(PTYChanged));
}
mLastPTY = pty;
uint16_t grouptype = blocks[1] >> 11;
switch (grouptype) {
case 0: // 0a
case 1: // 0b
{
uint16_t segmentAddr = (blocks[1] & 0x3);
// mPSNameState is a bitmask that lets us ensure all segments
// are received before updating the PS name.
if (!segmentAddr) {
mPSNameState = 1;
} else {
mPSNameState |= 1 << segmentAddr;
}
uint16_t offset = segmentAddr << 1;
mTempPSName[offset] = sRDSToUnicodeMap[blocks[3] >> 8];
mTempPSName[offset + 1] = sRDSToUnicodeMap[blocks[3] & 0xFF];
if (mPSNameState != 0xF) {
break;
}
mPSNameState = 0;
if (memcmp(mTempPSName, mPSName, sizeof(mTempPSName))) {
MutexAutoLock lock(mRDSLock);
mPSNameSet = true;
memcpy(mPSName, mTempPSName, sizeof(mTempPSName));
NS_DispatchToMainThread(new NotifyRunnable(PSChanged));
}
break;
}
case 4: // 2a Radiotext
{
uint16_t segmentAddr = (blocks[1] & 0xF);
bool textAB = blocks[1] & (1 << 5);
if (textAB != mRadiotextAB) {
mRadiotextState = 0;
memset(mTempRadiotext, 0, sizeof(mTempRadiotext));
mRadiotextAB = textAB;
MutexAutoLock lock(mRDSLock);
memset(mRadiotext, 0, sizeof(mRadiotext));
NS_DispatchToMainThread(new NotifyRunnable(RadiotextChanged));
}
// mRadiotextState is a bitmask that lets us ensure all segments
// are received before updating the radiotext.
if (!segmentAddr) {
mRadiotextState = 1;
} else {
mRadiotextState |= 1 << segmentAddr;
}
uint8_t segment[4];
segment[0] = blocks[2] >> 8;
segment[1] = blocks[2] & 0xFF;
segment[2] = blocks[3] >> 8;
segment[3] = blocks[3] & 0xFF;
uint16_t offset = segmentAddr << 2;
bool done = false;
for (int i = 0; i < 4; i++) {
if (segment[i] == '\r') {
mTempRadiotext[offset++] = 0;
done = true;
} else {
mTempRadiotext[offset++] = sRDSToUnicodeMap[segment[i]];
}
}
if (offset == 64) {
done = true;
}
if (!done ||
(mRadiotextState + 1) != (1 << ((blocks[1] & 0xF) + 1)) ||
!memcmp(mTempRadiotext, mRadiotext, sizeof(mTempRadiotext))) {
break;
}
MutexAutoLock lock(mRDSLock);
mRadiotextSet = true;
memcpy(mRadiotext, mTempRadiotext, sizeof(mTempRadiotext));
NS_DispatchToMainThread(new NotifyRunnable(RadiotextChanged));
break;
}
case 5: // 2b Radiotext
{
uint16_t segmentAddr = (blocks[1] & 0xF);
bool textAB = blocks[1] & (1 << 5);
if (textAB != mRadiotextAB) {
mRadiotextState = 0;
memset(mTempRadiotext, 0, sizeof(mTempRadiotext));
mRadiotextAB = textAB;
MutexAutoLock lock(mRDSLock);
memset(mRadiotext, 0, sizeof(mRadiotext));
NS_DispatchToMainThread(new NotifyRunnable(RadiotextChanged));
}
if (!segmentAddr) {
mRadiotextState = 1;
} else {
mRadiotextState |= 1 << segmentAddr;
}
uint8_t segment[2];
segment[0] = blocks[3] >> 8;
segment[1] = blocks[3] & 0xFF;
uint16_t offset = segmentAddr << 1;
bool done = false;
for (int i = 0; i < 2; i++) {
if (segment[i] == '\r') {
mTempRadiotext[offset++] = 0;
done = true;
} else {
mTempRadiotext[offset++] = sRDSToUnicodeMap[segment[i]];
}
}
if (offset == 32) {
done = true;
}
if (!done ||
(mRadiotextState + 1) != (1 << ((blocks[1] & 0xF) + 1)) ||
!memcmp(mTempRadiotext, mRadiotext, sizeof(mTempRadiotext))) {
break;
}
MutexAutoLock lock(mRDSLock);
mRadiotextSet = true;
memcpy(mRadiotext, mTempRadiotext, sizeof(mTempRadiotext));
NS_DispatchToMainThread(new NotifyRunnable(RadiotextChanged));
break;
}
case 31: // 15b Fast Tuning and Switching
{
uint16_t secondPty = (blocks[3] >> 5) & 0x1F;
if (pty == mPTY || pty != secondPty) {
break;
}
mPTY = pty;
NS_DispatchToMainThread(new NotifyRunnable(PTYChanged));
break;
}
}
// Only notify users of raw RDS groups that they're interested in.
// We always receive DOM_PARSED_RDS_GROUPS when RDS is enabled.
if (!(mRDSGroupMask & (1 << grouptype))) {
return;
}
uint64_t newgroup = blocks[0];
newgroup <<= 16;
newgroup |= blocks[1];
newgroup <<= 16;
newgroup |= blocks[2];
newgroup <<= 16;
newgroup |= blocks[3];
MutexAutoLock lock(mRDSLock);
mRDSGroup = newgroup;
mRDSGroupSet = true;
NS_DispatchToMainThread(new NotifyRunnable(NewRDSGroup));
}
void
FMRadioService::UpdatePowerState()
{
@ -802,6 +1210,13 @@ FMRadioService::UpdateFrequency()
if (mPendingFrequencyInKHz != frequency) {
mPendingFrequencyInKHz = frequency;
NotifyFMRadioEvent(FrequencyChanged);
mPISet = false;
mPTYSet = false;
memset(mPSName, 0, sizeof(mPSName));
memset(mRadiotext, 0, sizeof(mRadiotext));
mRDSGroupSet = false;
mPSNameSet = false;
mRadiotextSet = false;
}
}

Просмотреть файл

@ -7,9 +7,11 @@
#ifndef mozilla_dom_fmradioservice_h__
#define mozilla_dom_fmradioservice_h__
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PFMRadioRequest.h"
#include "FMRadioCommon.h"
#include "mozilla/Hal.h"
#include "mozilla/Mutex.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/Services.h"
#include "nsThreadUtils.h"
@ -95,10 +97,16 @@ protected:
public:
virtual bool IsEnabled() const = 0;
virtual bool IsRDSEnabled() const = 0;
virtual double GetFrequency() const = 0;
virtual double GetFrequencyUpperBound() const = 0;
virtual double GetFrequencyLowerBound() const = 0;
virtual double GetChannelWidth() const = 0;
virtual Nullable<unsigned short> GetPi() const = 0;
virtual Nullable<uint8_t> GetPty() const = 0;
virtual bool GetPs(nsString& aPsname) = 0;
virtual bool GetRt(nsString& aRadiotext) = 0;
virtual bool GetRdsgroup(uint64_t& aRDSGroup) = 0;
virtual void Enable(double aFrequency, FMRadioReplyRunnable* aReplyRunnable) = 0;
virtual void Disable(FMRadioReplyRunnable* aReplyRunnable) = 0;
@ -106,6 +114,9 @@ public:
virtual void Seek(mozilla::hal::FMRadioSeekDirection aDirection,
FMRadioReplyRunnable* aReplyRunnable) = 0;
virtual void CancelSeek(FMRadioReplyRunnable* aReplyRunnable) = 0;
virtual void SetRDSGroupMask(uint32_t aRDSGroupMask) = 0;
virtual void EnableRDS(FMRadioReplyRunnable* aReplyRunnable) = 0;
virtual void DisableRDS(FMRadioReplyRunnable* aReplyRunnable) = 0;
/**
* Register handler to receive the FM Radio events, including:
@ -138,11 +149,13 @@ enum FMRadioState
class FMRadioService MOZ_FINAL : public IFMRadioService
, public hal::FMRadioObserver
, public hal::FMRadioRDSObserver
, public nsIObserver
{
friend class ReadAirplaneModeSettingTask;
friend class EnableRunnable;
friend class DisableRunnable;
friend class NotifyRunnable;
public:
static FMRadioService* Singleton();
@ -151,10 +164,16 @@ public:
NS_DECL_ISUPPORTS
virtual bool IsEnabled() const MOZ_OVERRIDE;
virtual bool IsRDSEnabled() const MOZ_OVERRIDE;
virtual double GetFrequency() const MOZ_OVERRIDE;
virtual double GetFrequencyUpperBound() const MOZ_OVERRIDE;
virtual double GetFrequencyLowerBound() const MOZ_OVERRIDE;
virtual double GetChannelWidth() const MOZ_OVERRIDE;
virtual Nullable<unsigned short> GetPi() const MOZ_OVERRIDE;
virtual Nullable<uint8_t> GetPty() const MOZ_OVERRIDE;
virtual bool GetPs(nsString& aPsname) MOZ_OVERRIDE;
virtual bool GetRt(nsString& aRadiotext) MOZ_OVERRIDE;
virtual bool GetRdsgroup(uint64_t& aRDSGroup) MOZ_OVERRIDE;
virtual void Enable(double aFrequency,
FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
@ -164,6 +183,9 @@ public:
virtual void Seek(mozilla::hal::FMRadioSeekDirection aDirection,
FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void CancelSeek(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void SetRDSGroupMask(uint32_t aRDSGroupMask) MOZ_OVERRIDE;
virtual void EnableRDS(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void DisableRDS(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void AddObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
virtual void RemoveObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
@ -172,6 +194,8 @@ public:
/* FMRadioObserver */
void Notify(const hal::FMRadioOperationInformation& aInfo) MOZ_OVERRIDE;
/* FMRadioRDSObserver */
void Notify(const hal::FMRadioRDSGroup& aRDSGroup) MOZ_OVERRIDE;
NS_DECL_NSIOBSERVER
@ -197,6 +221,7 @@ private:
bool mHasReadAirplaneModeSetting;
bool mAirplaneModeEnabled;
bool mRDSEnabled;
uint32_t mUpperBoundInKHz;
uint32_t mLowerBoundInKHz;
@ -209,6 +234,30 @@ private:
FMRadioEventObserverList mObserverList;
static StaticRefPtr<FMRadioService> sFMRadioService;
uint32_t mRDSGroupMask;
uint16_t mLastPI;
uint16_t mLastPTY;
Atomic<uint32_t> mPI;
Atomic<uint32_t> mPTY;
Atomic<bool> mPISet;
Atomic<bool> mPTYSet;
/* Protects mPSName, mRadiotext, and mRDSGroup */
Mutex mRDSLock;
char16_t mPSName[9];
char16_t mRadiotext[65];
uint64_t mRDSGroup;
uint8_t mPSNameState;
uint16_t mRadiotextState;
uint16_t mTempPSName[8];
uint16_t mTempRadiotext[64];
bool mRadiotextAB;
bool mRDSGroupSet;
bool mPSNameSet;
bool mRadiotextSet;
};
END_FMRADIO_NAMESPACE

Просмотреть файл

@ -16,7 +16,13 @@ StaticAutoPtr<FMRadioChild> FMRadioChild::sFMRadioChild;
FMRadioChild::FMRadioChild()
: mEnabled(false)
, mRDSEnabled(false)
, mRDSGroupSet(false)
, mPSNameSet(false)
, mRadiotextSet(false)
, mFrequency(0)
, mRDSGroup(0)
, mRDSGroupMask(0)
, mObserverList(FMRadioEventObserverList())
{
MOZ_COUNT_CTOR(FMRadioChild);
@ -44,6 +50,12 @@ FMRadioChild::IsEnabled() const
return mEnabled;
}
bool
FMRadioChild::IsRDSEnabled() const
{
return mRDSEnabled;
}
double
FMRadioChild::GetFrequency() const
{
@ -69,6 +81,43 @@ FMRadioChild::GetChannelWidth() const
return mChannelWidth;
}
Nullable<unsigned short>
FMRadioChild::GetPi() const
{
return mPI;
}
Nullable<uint8_t>
FMRadioChild::GetPty() const
{
return mPTY;
}
bool
FMRadioChild::GetPs(nsString& aPSName)
{
if (mPSNameSet) {
aPSName = mPSName;
}
return mPSNameSet;
}
bool
FMRadioChild::GetRt(nsString& aRadiotext)
{
if (mRadiotextSet) {
aRadiotext = mRadiotext;
}
return mRadiotextSet;
}
bool
FMRadioChild::GetRdsgroup(uint64_t& aRDSGroup)
{
aRDSGroup = mRDSGroup;
return mRDSGroupSet;
}
void
FMRadioChild::Enable(double aFrequency, FMRadioReplyRunnable* aReplyRunnable)
{
@ -101,6 +150,25 @@ FMRadioChild::CancelSeek(FMRadioReplyRunnable* aReplyRunnable)
SendRequest(aReplyRunnable, CancelSeekRequestArgs());
}
void
FMRadioChild::SetRDSGroupMask(uint32_t aRDSGroupMask)
{
mRDSGroupMask = aRDSGroupMask;
SendSetRDSGroupMask(aRDSGroupMask);
}
void
FMRadioChild::EnableRDS(FMRadioReplyRunnable* aReplyRunnable)
{
SendRequest(aReplyRunnable, EnableRDSArgs());
}
void
FMRadioChild::DisableRDS(FMRadioReplyRunnable* aReplyRunnable)
{
SendRequest(aReplyRunnable, DisableRDSArgs());
}
inline void
FMRadioChild::NotifyFMRadioEvent(FMRadioEventType aType)
{
@ -132,6 +200,26 @@ FMRadioChild::RecvNotifyFrequencyChanged(const double& aFrequency)
{
mFrequency = aFrequency;
NotifyFMRadioEvent(FrequencyChanged);
if (!mPI.IsNull()) {
mPI.SetNull();
NotifyFMRadioEvent(PIChanged);
}
if (!mPTY.IsNull()) {
mPTY.SetNull();
NotifyFMRadioEvent(PTYChanged);
}
if (mPSNameSet) {
mPSNameSet = false;
mPSName.Truncate();
NotifyFMRadioEvent(PSChanged);
}
if (mRadiotextSet) {
mRadiotextSet = false;
mRadiotext.Truncate();
NotifyFMRadioEvent(RadiotextChanged);
}
mRDSGroupSet = false;
return true;
}
@ -141,10 +229,85 @@ FMRadioChild::RecvNotifyEnabledChanged(const bool& aEnabled,
{
mEnabled = aEnabled;
mFrequency = aFrequency;
if (!mEnabled) {
mPI.SetNull();
mPTY.SetNull();
mPSName.Truncate();
mRadiotext.Truncate();
mRDSGroupSet = false;
mPSNameSet = false;
mRadiotextSet = false;
}
NotifyFMRadioEvent(EnabledChanged);
return true;
}
bool
FMRadioChild::RecvNotifyRDSEnabledChanged(const bool& aEnabled)
{
mRDSEnabled = aEnabled;
NotifyFMRadioEvent(RDSEnabledChanged);
return true;
}
bool
FMRadioChild::RecvNotifyPIChanged(const bool& aValid,
const uint16_t& aCode)
{
if (aValid) {
mPI.SetValue(aCode);
} else {
mPI.SetNull();
}
NotifyFMRadioEvent(PIChanged);
return true;
}
bool
FMRadioChild::RecvNotifyPTYChanged(const bool& aValid,
const uint8_t& aPTY)
{
if (aValid) {
mPTY.SetValue(aPTY);
} else {
mPTY.SetNull();
}
NotifyFMRadioEvent(PTYChanged);
return true;
}
bool
FMRadioChild::RecvNotifyPSChanged(const nsString& aPSName)
{
mPSNameSet = true;
mPSName = aPSName;
NotifyFMRadioEvent(PSChanged);
return true;
}
bool
FMRadioChild::RecvNotifyRadiotextChanged(const nsString& aRadiotext)
{
mRadiotextSet = true;
mRadiotext = aRadiotext;
NotifyFMRadioEvent(RadiotextChanged);
return true;
}
bool
FMRadioChild::RecvNotifyNewRDSGroup(const uint64_t& aGroup)
{
uint16_t grouptype = (aGroup >> 43) & 0x1F;
if (!(mRDSGroupMask & (1 << grouptype))) {
return true;
}
mRDSGroupSet = true;
mRDSGroup = aGroup;
NotifyFMRadioEvent(NewRDSGroup);
return true;
}
bool
FMRadioChild::Recv__delete__()
{

Просмотреть файл

@ -34,10 +34,16 @@ public:
/* IFMRadioService */
virtual bool IsEnabled() const MOZ_OVERRIDE;
virtual bool IsRDSEnabled() const MOZ_OVERRIDE;
virtual double GetFrequency() const MOZ_OVERRIDE;
virtual double GetFrequencyUpperBound() const MOZ_OVERRIDE;
virtual double GetFrequencyLowerBound() const MOZ_OVERRIDE;
virtual double GetChannelWidth() const MOZ_OVERRIDE;
virtual Nullable<unsigned short> GetPi() const MOZ_OVERRIDE;
virtual Nullable<uint8_t> GetPty() const MOZ_OVERRIDE;
virtual bool GetPs(nsString& aPSName) MOZ_OVERRIDE;
virtual bool GetRt(nsString& aRadiotext) MOZ_OVERRIDE;
virtual bool GetRdsgroup(uint64_t& aRDSGroup) MOZ_OVERRIDE;
virtual void Enable(double aFrequency,
FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
@ -47,6 +53,9 @@ public:
virtual void Seek(mozilla::hal::FMRadioSeekDirection aDirection,
FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void CancelSeek(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void SetRDSGroupMask(uint32_t aRDSGroupMask) MOZ_OVERRIDE;
virtual void EnableRDS(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void DisableRDS(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
virtual void AddObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
virtual void RemoveObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
@ -64,6 +73,26 @@ public:
RecvNotifyEnabledChanged(const bool& aEnabled,
const double& aFrequency) MOZ_OVERRIDE;
virtual bool
RecvNotifyRDSEnabledChanged(const bool& aEnabled) MOZ_OVERRIDE;
virtual bool
RecvNotifyPIChanged(const bool& aValid,
const uint16_t& aCode) MOZ_OVERRIDE;
virtual bool
RecvNotifyPTYChanged(const bool& aValid,
const uint8_t& aPTY) MOZ_OVERRIDE;
virtual bool
RecvNotifyPSChanged(const nsString& aPSName) MOZ_OVERRIDE;
virtual bool
RecvNotifyRadiotextChanged(const nsString& aRadiotext) MOZ_OVERRIDE;
virtual bool
RecvNotifyNewRDSGroup(const uint64_t& aGroup) MOZ_OVERRIDE;
virtual PFMRadioRequestChild*
AllocPFMRadioRequestChild(const FMRadioRequestArgs& aArgs) MOZ_OVERRIDE;
@ -78,10 +107,20 @@ private:
inline void NotifyFMRadioEvent(FMRadioEventType aType);
bool mEnabled;
bool mRDSEnabled;
bool mRDSGroupSet;
bool mPSNameSet;
bool mRadiotextSet;
double mFrequency;
double mUpperBound;
double mLowerBound;
double mChannelWidth;
Nullable<unsigned short> mPI;
Nullable<uint8_t> mPTY;
nsAutoString mPSName;
nsAutoString mRadiotext;
uint64_t mRDSGroup;
uint32_t mRDSGroupMask;
FMRadioEventObserverList mObserverList;

Просмотреть файл

@ -6,6 +6,7 @@
#include "FMRadioParent.h"
#include "mozilla/unused.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/DebugOnly.h"
#include "FMRadioRequestParent.h"
#include "FMRadioService.h"
@ -69,6 +70,12 @@ FMRadioParent::AllocPFMRadioRequestParent(const FMRadioRequestArgs& aArgs)
case FMRadioRequestArgs::TCancelSeekRequestArgs:
IFMRadioService::Singleton()->CancelSeek(requestParent);
break;
case FMRadioRequestArgs::TEnableRDSArgs:
IFMRadioService::Singleton()->EnableRDS(requestParent);
break;
case FMRadioRequestArgs::TDisableRDSArgs:
IFMRadioService::Singleton()->DisableRDS(requestParent);
break;
default:
MOZ_CRASH();
}
@ -98,6 +105,43 @@ FMRadioParent::Notify(const FMRadioEventType& aType)
IFMRadioService::Singleton()->IsEnabled(),
IFMRadioService::Singleton()->GetFrequency());
break;
case RDSEnabledChanged:
unused << SendNotifyRDSEnabledChanged(
IFMRadioService::Singleton()->IsRDSEnabled());
break;
case PIChanged: {
Nullable<unsigned short> pi =
IFMRadioService::Singleton()->GetPi();
unused << SendNotifyPIChanged(!pi.IsNull(),
pi.IsNull() ? 0 : pi.Value());
break;
}
case PTYChanged: {
Nullable<uint8_t> pty = IFMRadioService::Singleton()->GetPty();
unused << SendNotifyPTYChanged(!pty.IsNull(),
pty.IsNull() ? 0 : pty.Value());
break;
}
case PSChanged: {
nsAutoString psname;
IFMRadioService::Singleton()->GetPs(psname);
unused << SendNotifyPSChanged(psname);
break;
}
case RadiotextChanged: {
nsAutoString radiotext;
IFMRadioService::Singleton()->GetRt(radiotext);
unused << SendNotifyRadiotextChanged(radiotext);
break;
}
case NewRDSGroup: {
uint64_t group;
DebugOnly<bool> rdsgroupset =
IFMRadioService::Singleton()->GetRdsgroup(group);
MOZ_ASSERT(rdsgroupset);
unused << SendNotifyNewRDSGroup(group);
break;
}
default:
NS_RUNTIMEABORT("not reached");
break;
@ -111,5 +155,12 @@ FMRadioParent::RecvEnableAudio(const bool& aAudioEnabled)
return true;
}
bool
FMRadioParent::RecvSetRDSGroupMask(const uint32_t& aRDSGroupMask)
{
IFMRadioService::Singleton()->SetRDSGroupMask(aRDSGroupMask);
return true;
}
END_FMRADIO_NAMESPACE

Просмотреть файл

@ -39,6 +39,9 @@ public:
virtual bool
RecvEnableAudio(const bool& aAudioEnabled) MOZ_OVERRIDE;
virtual bool
RecvSetRDSGroupMask(const uint32_t& aRDSGroupMask) MOZ_OVERRIDE;
};
END_FMRADIO_NAMESPACE

Просмотреть файл

@ -34,6 +34,14 @@ struct CancelSeekRequestArgs
{
};
struct EnableRDSArgs
{
};
struct DisableRDSArgs
{
};
union FMRadioRequestArgs
{
EnableRequestArgs;
@ -41,6 +49,8 @@ union FMRadioRequestArgs
SetFrequencyRequestArgs;
SeekRequestArgs;
CancelSeekRequestArgs;
EnableRDSArgs;
DisableRDSArgs;
};
struct StatusInfo
@ -66,6 +76,30 @@ child:
* Sent when the power state of FM radio HW is changed.
*/
NotifyEnabledChanged(bool enabled, double frequency);
/**
* Sent when RDS is enabled or disabled.
*/
NotifyRDSEnabledChanged(bool enabled);
/**
* Sent when we have a new PI code.
*/
NotifyPIChanged(bool valid, uint16_t code);
/**
* Sent when we have a new PTY
*/
NotifyPTYChanged(bool valid, uint8_t pty);
/**
* Sent when we have a new PS name.
*/
NotifyPSChanged(nsString psname);
/**
* Sent when we have new radiotext.
*/
NotifyRadiotextChanged(nsString radiotext);
/**
* Sent when a full RDS group is received.
*/
NotifyNewRDSGroup(uint64_t data);
__delete__();
@ -91,6 +125,11 @@ parent:
* Enable/Disable audio
*/
EnableAudio(bool audioEnabled);
/**
* Set RDS group mask
*/
SetRDSGroupMask(uint32_t groupMask);
};
} // namespace dom

Просмотреть файл

@ -6,6 +6,9 @@ interface FMRadio : EventTarget {
/* Indicates if the FM radio is enabled. */
readonly attribute boolean enabled;
/* Indicates if RDS reception is enabled */
readonly attribute boolean rdsEnabled;
/* Indicates if the antenna is plugged and available. */
readonly attribute boolean antennaAvailable;
@ -31,12 +34,58 @@ interface FMRadio : EventTarget {
*/
readonly attribute double channelWidth;
/**
* This is a mask consisting of bits corresponding to
* (1 << groupcode) that can be specified to receive
* raw RDS groups of specific group types. Note that
* groupcode corresponds to the upper 5 bits in block B.
*/
attribute unsigned long rdsGroupMask;
/**
* The Program Identification (PI) code.
* Available if RDS is enabled on both the station and on this device.
* The value is null otherwise.
*/
readonly attribute unsigned short? pi;
/**
* The Program Type (PTY) code.
* Available if RDS is enabled on both the station and on this device.
* The value is null otherwise.
*/
readonly attribute octet? pty;
/**
* The Program Service (PS) name.
* Available if RDS is enabled on the station and on this device
*/
readonly attribute DOMString? ps;
/**
* The radiotext, as provided by group 2A/2B.
* Available if RDS is enabled on the station and on this device
*/
readonly attribute DOMString? rt;
/**
* The last RDS group received.
* Available if RDS is enabled on the station and on this device
*/
readonly attribute Uint16Array? rdsgroup;
/* Fired when the FM radio is enabled. */
attribute EventHandler onenabled;
/* Fired when the FM radio is disabled. */
attribute EventHandler ondisabled;
/* Fired when the RDS is enabled. */
attribute EventHandler onrdsenabled;
/* Fired when the RDS is disabled. */
attribute EventHandler onrdsdisabled;
/**
* Fired when the antenna becomes available or unavailable, i.e., fired when
* the antennaAvailable attribute changes.
@ -46,6 +95,21 @@ interface FMRadio : EventTarget {
/* Fired when the FM radio's frequency is changed. */
attribute EventHandler onfrequencychange;
/* Fired when the PI code changes */
attribute EventHandler onpichange;
/* Fired when the PTY changes */
attribute EventHandler onptychange;
/* Fired when the PS name changes */
attribute EventHandler onpschange;
/* Fired when the radiotext changes */
attribute EventHandler onrtchange;
/* Fired when we get a new RDS group */
attribute EventHandler onnewrdsgroup;
/**
* Power the FM radio off. The disabled event will be fired if this request
* completes successfully.
@ -94,5 +158,19 @@ interface FMRadio : EventTarget {
* error will be fired.
*/
DOMRequest cancelSeek();
/**
* Enable RDS reception.
*
* If the radio is off, RDS will be enabled when the radio is turned on.
*/
DOMRequest enableRDS();
/**
* Disable RDS reception.
*
* If the radio is off, RDS will not be enabled when the radio is turned on.
*/
DOMRequest disableRDS();
};