btdrv: Added support for the new 12.0.0 cmds.

2025-06-21 12:32:40 +02:00 · 2021-04-16 16:46:45 -04:00 · 2021-04-16 16:46:45 -04:00 · 2e2cf43cf5
commit 2e2cf43cf5
parent 0d32a2c0d5
3 changed files with 372 additions and 0 deletions
--- a/nx/include/switch/services/btdrv.h
+++ b/nx/include/switch/services/btdrv.h
@ -225,6 +225,15 @@ typedef struct {
    } data;
 } BtdrvHidReportEventInfoBufferData;

+/// Data for \ref btdrvGetAudioEventInfo. The data stored here depends on the \ref BtdrvAudioEventType.
+typedef union {
+    struct {
+        u32 status;                  ///< Status: 0 = AV connection closed, 1 = AV connection opened, 2 = failed to open AV connection.
+        BtdrvAddress addr;           ///< Device address.
+        u8 pad[2];                   ///< Padding
+    } connection;                    ///< ::BtdrvAudioEventType_Connection
+} BtdrvAudioEventInfo;
+
 /// CircularBuffer
 typedef struct {
    Mutex mutex;
@ -1083,6 +1092,163 @@ Result btdrvSetBleScanParameter(u16 unk0, u16 unk1);
 */
 Result btdrvMoveToSecondaryPiconet(BtdrvAddress addr);

+/**
+ * @brief IsBluetoothEnabled
+ * @note Only available on [12.0.0+].
+ * @param[out] out Output flag.
+ */
+Result btdrvIsBluetoothEnabled(bool *out);
+
+/**
+ * @brief AcquireAudioEvent
+ * @note Only available on [12.0.0+].
+ * @param[out] out_event Output Event.
+ * @param[in] autoclear Event autoclear.
+ */
+Result btdrvAcquireAudioEvent(Event* out_event, bool autoclear);
+
+/**
+ * @brief GetAudioEventInfo
+ * @note Only available on [12.0.0+].
+ * @param[out] buffer Output buffer, see \ref BtdrvAudioEventInfo.
+ * @param[in] size Output buffer size.
+ * @param[out] type \ref BtdrvAudioEventType.
+ */
+Result btdrvGetAudioEventInfo(void* buffer, size_t size, BtdrvAudioEventType *type);
+
+/**
+ * @brief OpenAudioConnection
+ * @note Only available on [12.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ */
+Result btdrvOpenAudioConnection(BtdrvAddress addr);
+
+/**
+ * @brief CloseAudioConnection
+ * @note Only available on [12.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ */
+Result btdrvCloseAudioConnection(BtdrvAddress addr);
+
+/**
+ * @brief OpenAudioOut
+ * @note Only available on [12.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ * @param[out] audio_handle Audio handle.
+ */
+Result btdrvOpenAudioOut(BtdrvAddress addr, u32 *audio_handle);
+
+/**
+ * @brief CloseAudioOut
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ */
+Result btdrvCloseAudioOut(u32 audio_handle);
+
+/**
+ * @brief StartAudioOut
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[in] pcm_param \ref BtdrvPcmParameter
+ * @param[in] in_latency Input latency in nanoseconds.
+ * @param[out] out_latency Output latency in nanoseconds.
+ * @param[out] out1 Unknown output.
+ */
+Result btdrvStartAudioOut(u32 audio_handle, const BtdrvPcmParameter *pcm_param, s64 in_latency, s64 *out_latency, u64 *out1);
+
+/**
+ * @brief StopAudioOut
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ */
+Result btdrvStopAudioOut(u32 audio_handle);
+
+/**
+ * @brief GetAudioOutState
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[out] out \ref BtdrvAudioOutState
+ */
+Result btdrvGetAudioOutState(u32 audio_handle, BtdrvAudioOutState *out);
+
+/**
+ * @brief GetAudioOutFeedingCodec
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[out] out \ref BtdrvAudioCodec
+ */
+Result btdrvGetAudioOutFeedingCodec(u32 audio_handle, BtdrvAudioCodec *out);
+
+/**
+ * @brief GetAudioOutFeedingParameter
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[out] out \ref BtdrvPcmParameter
+ */
+Result btdrvGetAudioOutFeedingParameter(u32 audio_handle, BtdrvPcmParameter *out);
+
+/**
+ * @brief AcquireAudioOutStateChangedEvent
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[out] out_event Output Event.
+ * @param[in] autoclear Event autoclear.
+ */
+Result btdrvAcquireAudioOutStateChangedEvent(u32 audio_handle, Event* out_event, bool autoclear);
+
+/**
+ * @brief AcquireAudioOutBufferAvailableEvent
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[out] out_event Output Event.
+ * @param[in] autoclear Event autoclear.
+ */
+Result btdrvAcquireAudioOutBufferAvailableEvent(u32 audio_handle, Event* out_event, bool autoclear);
+
+/**
+ * @brief SendAudioData
+ * @note Only available on [12.0.0+].
+ * @param[in] audio_handle Audio handle from \ref btdrvOpenAudioOut.
+ * @param[in] buffer Input buffer.
+ * @param[in] size Input buffer size.
+ * @param[out] Output transferred size. This is always either 0 (error occured) or the buffer size.
+ */
+Result btdrvSendAudioData(u32 audio_handle, const void* buffer, size_t size, u64 *transferred_size);
+
+/**
+ * @brief AcquireAudioControlInputStateChangedEvent
+ * @note Only available on [12.0.0+].
+ * @param[out] out_event Output Event.
+ * @param[in] autoclear Event autoclear.
+ */
+Result btdrvAcquireAudioControlInputStateChangedEvent(Event* out_event, bool autoclear);
+
+/**
+ * @brief GetAudioControlInputState
+ * @note Only available on [12.0.0+].
+ * @param[out] states Output array of \ref BtdrvAudioControlButtonState.
+ * @param[in] count Size of the states array in entries, the maximum is 0xF.
+ * @param[out] total_out Total output entries.
+ */
+Result btdrvGetAudioControlInputState(BtdrvAudioControlButtonState *states, s32 count, s32 *total_out);
+
+/**
+ * @brief AcquireAudioConnectionStateChangedEvent
+ * @note Only available on [12.0.0+].
+ * @param[out] out_event Output Event.
+ * @param[in] autoclear Event autoclear.
+ */
+Result btdrvAcquireAudioConnectionStateChangedEvent(Event* out_event, bool autoclear);
+
+/**
+ * @brief GetConnectedAudioDevice
+ * @note Only available on [12.0.0+].
+ * @param[out] addrs Output array of \ref BtdrvAddress.
+ * @param[in] count Size of the addrs array in entries, the maximum is 0x8.
+ * @param[out] total_out Total output entries.
+ */
+Result btdrvGetConnectedAudioDevice(BtdrvAddress *addrs, s32 count, s32 *total_out);
+
 /**
 * @brief IsManufacturingMode
 * @note Only available on [5.0.0+].
--- a/nx/include/switch/services/btdrv_types.h
+++ b/nx/include/switch/services/btdrv_types.h
@ -73,6 +73,23 @@ typedef enum {
    BtdrvFatalReason_Enable                 =    7,    ///< Only for \ref BtdrvEventInfo: triggered after enabling bluetooth, depending on the value of a global state field.
 } BtdrvFatalReason;

+/// AudioEventType
+typedef enum {
+    BtdrvAudioEventType_None                =     0,   ///< None
+    BtdrvAudioEventType_Connection          =     1,   ///< Connection
+} BtdrvAudioEventType;
+
+/// AudioOutState
+typedef enum {
+    BtdrvAudioOutState_Stopped              =     0,   ///< Stopped
+    BtdrvAudioOutState_Started              =     1,   ///< Started
+} BtdrvAudioOutState;
+
+/// AudioCodec
+typedef enum {
+    BtdrvAudioCodec_Pcm                     =     0,   ///< Raw PCM
+} BtdrvAudioCodec;
+
 /// Address
 typedef struct {
    u8 address[0x6];           ///< Address
@ -220,3 +237,15 @@ typedef struct {
    u8 data[0x200];                         ///< BtdrvLeEventInfo::data
 } BtdrvBleClientGattOperationInfo;

+/// PcmParameter
+typedef struct {
+    u32 unk_x0;                             ///< Must be 0-3. Controls number of channels: 0 = mono, non-zero = stereo.
+    s32 sample_rate;                        ///< Sample rate. Must be one of the following: 16000, 32000, 44100, 48000.
+    u32 bits_per_sample;                    ///< Bits per sample. Must be 8 or 16.
+} BtdrvPcmParameter;
+
+/// AudioControlButtonState
+typedef struct {
+    u8 unk_x0[0x10];                        ///< Unknown
+} BtdrvAudioControlButtonState;
+
--- a/nx/source/services/btdrv.c
+++ b/nx/source/services/btdrv.c
@ -99,6 +99,10 @@ static Result _btdrvCmdNoInOutBool(bool *out, u32 cmd_id) {
    return rc;
 }

+static Result _btdrvCmdInU32OutU32(u32 inval, u32 *out, u32 cmd_id) {
+    return serviceDispatchInOut(&g_btdrvSrv, cmd_id, inval, *out);
+}
+
 static Result _btdrvCmdGetEvent(Event* out_event, bool autoclear, u32 cmd_id) {
    Handle tmp_handle = INVALID_HANDLE;
    Result rc = 0;
@ -108,6 +112,18 @@ static Result _btdrvCmdGetEvent(Event* out_event, bool autoclear, u32 cmd_id) {
    return rc;
 }

+static Result _btdrvCmdInU32OutEvent(u32 inval, Event* out_event, bool autoclear, u32 cmd_id) {
+    Handle tmp_handle = INVALID_HANDLE;
+
+    Result rc = serviceDispatchIn(&g_btdrvSrv, cmd_id, inval,
+        .out_handle_attrs = { SfOutHandleAttr_HipcCopy },
+        .out_handles = &tmp_handle,
+    );
+
+    if (R_SUCCEEDED(rc)) eventLoadRemote(out_event, tmp_handle, autoclear);
+    return rc;
+}
+
 static Result _btdrvCmdInBufPtrFixed(const void* buffer, size_t size, u32 cmd_id) {
    return serviceDispatch(&g_btdrvSrv, cmd_id,
        .buffer_attrs = { SfBufferAttr_HipcPointer | SfBufferAttr_In | SfBufferAttr_FixedSize },
@ -1125,6 +1141,167 @@ Result btdrvMoveToSecondaryPiconet(BtdrvAddress addr) {
    return _btdrvCmdInAddrNoOut(addr, 99);
 }

+Result btdrvIsBluetoothEnabled(bool *out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdNoInOutBool(out, 100);
+}
+
+Result btdrvAcquireAudioEvent(Event* out_event, bool autoclear) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdGetEvent(out_event, autoclear, 128);
+}
+
+Result btdrvGetAudioEventInfo(void* buffer, size_t size, BtdrvAudioEventType *type) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    u32 tmp=0;
+    Result rc = _btdrvCmdOutU32OutBuf(buffer, size, &tmp, 129);
+    if (R_SUCCEEDED(rc) && type) *type = tmp;
+    return rc;
+}
+
+Result btdrvOpenAudioConnection(BtdrvAddress addr) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrNoOut(addr, 130);
+}
+
+Result btdrvCloseAudioConnection(BtdrvAddress addr) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrNoOut(addr, 131);
+}
+
+Result btdrvOpenAudioOut(BtdrvAddress addr, u32 *audio_handle) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return serviceDispatchInOut(&g_btdrvSrv, 132, addr, *audio_handle);
+}
+
+Result btdrvCloseAudioOut(u32 audio_handle) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInU32NoOut(audio_handle, 133);
+}
+
+Result btdrvAcquireAudioOutStateChangedEvent(u32 audio_handle, Event* out_event, bool autoclear) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInU32OutEvent(audio_handle, out_event, autoclear, 134);
+}
+
+Result btdrvStartAudioOut(u32 audio_handle, const BtdrvPcmParameter *pcm_param, s64 in_latency, s64 *out_latency, u64 *out1) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        u32 audio_handle;
+        BtdrvPcmParameter pcm_param;
+        s64 latency;
+    } in = { audio_handle, *pcm_param, in_latency };
+
+    struct {
+        s64 latency;
+        u64 out1;
+    } out;
+
+    Result rc = serviceDispatchInOut(&g_btdrvSrv, 135, in, out);
+    if (R_SUCCEEDED(rc)) {
+        if (out_latency) *out_latency = out.latency;
+        if (out1) *out1 = out.out1;
+    }
+    return rc;
+}
+
+Result btdrvStopAudioOut(u32 audio_handle) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInU32NoOut(audio_handle, 136);
+}
+
+Result btdrvGetAudioOutState(u32 audio_handle, BtdrvAudioOutState *out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    u32 tmp=0;
+    Result rc = _btdrvCmdInU32OutU32(audio_handle, &tmp, 137);
+    if (R_SUCCEEDED(rc) && out) *out = tmp;
+    return rc;
+}
+
+Result btdrvGetAudioOutFeedingCodec(u32 audio_handle, BtdrvAudioCodec *out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    u32 tmp=0;
+    Result rc = _btdrvCmdInU32OutU32(audio_handle, &tmp, 138);
+    if (R_SUCCEEDED(rc) && out) *out = tmp;
+    return rc;
+}
+
+Result btdrvGetAudioOutFeedingParameter(u32 audio_handle, BtdrvPcmParameter *out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return serviceDispatchInOut(&g_btdrvSrv, 139, audio_handle, *out);
+}
+
+Result btdrvAcquireAudioOutBufferAvailableEvent(u32 audio_handle, Event* out_event, bool autoclear) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInU32OutEvent(audio_handle, out_event, autoclear, 140);
+}
+
+Result btdrvSendAudioData(u32 audio_handle, const void* buffer, size_t size, u64 *transferred_size) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return serviceDispatchInOut(&g_btdrvSrv, 141, audio_handle, *transferred_size,
+        .buffer_attrs = { SfBufferAttr_HipcPointer | SfBufferAttr_In },
+        .buffers = { { buffer, size } },
+    );
+}
+
+Result btdrvAcquireAudioControlInputStateChangedEvent(Event* out_event, bool autoclear) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdGetEvent(out_event, autoclear, 142);
+}
+
+Result btdrvGetAudioControlInputState(BtdrvAudioControlButtonState *states, s32 count, s32 *total_out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdOutU32OutBuf(states, count*sizeof(BtdrvAudioControlButtonState), (u32*)total_out, 143);
+}
+
+Result btdrvAcquireAudioConnectionStateChangedEvent(Event* out_event, bool autoclear) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdGetEvent(out_event, autoclear, 144);
+}
+
+Result btdrvGetConnectedAudioDevice(BtdrvAddress *addrs, s32 count, s32 *total_out) {
+    if (hosversionBefore(12,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdOutU32OutBuf(addrs, count*sizeof(BtdrvAddress), (u32*)total_out, 145);
+}
+
 Result btdrvIsManufacturingMode(bool *out) {
    if (hosversionBefore(5,0,0))
        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);