From db151efd0a50aa904a3021c45266f65355f6b4a7 Mon Sep 17 00:00:00 2001 From: wwylele Date: Fri, 18 Mar 2016 22:27:36 +0200 Subject: [PATCH] implement accel and gyro backend --- src/common/emu_window.h | 48 ++++++++++++++ src/core/hle/service/hid/hid.cpp | 93 ++++++++++++++++++++++++++- src/core/hle/service/hid/hid.h | 66 +++++++++++++++++++ src/core/hle/service/hid/hid_spvr.cpp | 20 +++--- src/core/hle/service/hid/hid_user.cpp | 20 +++--- 5 files changed, 224 insertions(+), 23 deletions(-) diff --git a/src/common/emu_window.h b/src/common/emu_window.h index a0ae4c9fa..b6b7bfd26 100644 --- a/src/common/emu_window.h +++ b/src/common/emu_window.h @@ -120,6 +120,54 @@ public: return std::make_tuple(touch_x, touch_y, touch_pressed); } + /** + * Gets the current accelerometer state (acceleration along each three axis). + * Axis explained: + * +x is the same direction as LEFT on D-pad. + * +y is normal to the touch screen, pointing outward. + * +z is the same direction as UP on D-pad. + * Units: + * 1 unit of return value = 1/512 g (measured by hw test), + * where g is the gravitational acceleration (9.8 m/sec2). + * @note This should be called by the core emu thread to get a state set by the window thread. + * @todo Implement accelerometer input in front-end. + * @return std::tuple of (x, y, z) + */ + std::tuple GetAccelerometerState() const { + // stubbed + return std::make_tuple(0, -512, 0); + } + + /** + * Gets the current gyroscope state (angular rates about each three axis). + * Axis explained: + * +x is the same direction as LEFT on D-pad. + * +y is normal to the touch screen, pointing outward. + * +z is the same direction as UP on D-pad. + * Orientation is determined by right-hand rule. + * Units: + * 1 unit of return value = (1/coef) deg/sec, + * where coef is the return value of GetGyroscopeRawToDpsCoefficient(). + * @note This should be called by the core emu thread to get a state set by the window thread. + * @todo Implement gyroscope input in front-end. + * @return std::tuple of (x, y, z) + */ + std::tuple GetGyroscopeState() const { + // stubbed + return std::make_tuple(0, 0, 0); + } + + /** + * Gets the coefficient for units conversion of gyroscope state. + * The conversion formula is r = coefficient * v, + * where v is angular rate in deg/sec, + * and r is the gyroscope state. + * @return float-type coefficient + */ + f32 GetGyroscopeRawToDpsCoefficient() const { + return 14.375f; // taken from hw test, and gyroscope's document + } + /** * Returns currently active configuration. * @note Accesses to the returned object need not be consistent because it may be modified in another thread diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp index cb4fd38e2..56bf89fa8 100644 --- a/src/core/hle/service/hid/hid.cpp +++ b/src/core/hle/service/hid/hid.cpp @@ -33,6 +33,11 @@ static Kernel::SharedPtr event_debug_pad; static u32 next_pad_index; static u32 next_touch_index; +static u32 next_accelerometer_index; +static u32 next_gyroscope_index; + +static int enable_accelerometer_count = 0; // positive means enabled +static int enable_gyroscope_count = 0; // positive means enabled const std::array pad_mapping = {{ Service::HID::PAD_A, Service::HID::PAD_B, Service::HID::PAD_X, Service::HID::PAD_Y, @@ -120,6 +125,58 @@ void Update() { // Signal both handles when there's an update to Pad or touch event_pad_or_touch_1->Signal(); event_pad_or_touch_2->Signal(); + + // Update accelerometer + if (enable_accelerometer_count > 0) { + mem->accelerometer.index = next_accelerometer_index; + next_accelerometer_index = (next_accelerometer_index + 1) % mem->accelerometer.entries.size(); + + AccelerometerDataEntry& accelerometer_entry = mem->accelerometer.entries[mem->accelerometer.index]; + std::tie(accelerometer_entry.x, accelerometer_entry.y, accelerometer_entry.z) + = VideoCore::g_emu_window->GetAccelerometerState(); + + // Make up "raw" entry + // TODO(wwylele): + // From hardware testing, the raw_entry values are approximately, + // but not exactly, as twice as corresponding entries (or with a minus sign). + // It may caused by system calibration to the accelerometer. + // Figure out how it works, or, if no game reads raw_entry, + // the following three lines can be removed and leave raw_entry unimplemented. + mem->accelerometer.raw_entry.x = -2 * accelerometer_entry.x; + mem->accelerometer.raw_entry.z = 2 * accelerometer_entry.y; + mem->accelerometer.raw_entry.y = -2 * accelerometer_entry.z; + + // If we just updated index 0, provide a new timestamp + if (mem->accelerometer.index == 0) { + mem->accelerometer.index_reset_ticks_previous = mem->accelerometer.index_reset_ticks; + mem->accelerometer.index_reset_ticks = (s64)CoreTiming::GetTicks(); + } + + event_accelerometer->Signal(); + } + + // Update gyroscope + if (enable_gyroscope_count > 0) { + mem->gyroscope.index = next_gyroscope_index; + next_gyroscope_index = (next_gyroscope_index + 1) % mem->gyroscope.entries.size(); + + GyroscopeDataEntry& gyroscope_entry = mem->gyroscope.entries[mem->gyroscope.index]; + std::tie(gyroscope_entry.x, gyroscope_entry.y, gyroscope_entry.z) + = VideoCore::g_emu_window->GetGyroscopeState(); + + // Make up "raw" entry + mem->gyroscope.raw_entry.x = gyroscope_entry.x; + mem->gyroscope.raw_entry.z = -gyroscope_entry.y; + mem->gyroscope.raw_entry.y = gyroscope_entry.z; + + // If we just updated index 0, provide a new timestamp + if (mem->gyroscope.index == 0) { + mem->gyroscope.index_reset_ticks_previous = mem->gyroscope.index_reset_ticks; + mem->gyroscope.index_reset_ticks = (s64)CoreTiming::GetTicks(); + } + + event_gyroscope->Signal(); + } } void GetIPCHandles(Service::Interface* self) { @@ -139,40 +196,70 @@ void GetIPCHandles(Service::Interface* self) { void EnableAccelerometer(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); + ++enable_accelerometer_count; event_accelerometer->Signal(); cmd_buff[1] = RESULT_SUCCESS.raw; - LOG_WARNING(Service_HID, "(STUBBED) called"); + LOG_DEBUG(Service_HID, "called"); } void DisableAccelerometer(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); + --enable_accelerometer_count; event_accelerometer->Signal(); cmd_buff[1] = RESULT_SUCCESS.raw; - LOG_WARNING(Service_HID, "(STUBBED) called"); + LOG_DEBUG(Service_HID, "called"); } void EnableGyroscopeLow(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); + ++enable_gyroscope_count; event_gyroscope->Signal(); cmd_buff[1] = RESULT_SUCCESS.raw; - LOG_WARNING(Service_HID, "(STUBBED) called"); + LOG_DEBUG(Service_HID, "called"); } void DisableGyroscopeLow(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); + --enable_gyroscope_count; event_gyroscope->Signal(); cmd_buff[1] = RESULT_SUCCESS.raw; + LOG_DEBUG(Service_HID, "called"); +} + +void GetGyroscopeLowRawToDpsCoefficient(Service::Interface* self) { + u32* cmd_buff = Kernel::GetCommandBuffer(); + + cmd_buff[1] = RESULT_SUCCESS.raw; + + f32 coef = VideoCore::g_emu_window->GetGyroscopeRawToDpsCoefficient(); + memcpy(&cmd_buff[2], &coef, 4); +} + +void GetGyroscopeLowCalibrateParam(Service::Interface* self) { + u32* cmd_buff = Kernel::GetCommandBuffer(); + + cmd_buff[1] = RESULT_SUCCESS.raw; + + // currently don't understand the meaning of return value, + // so stubbed these with value from a real console. + // TODO(wwylele): implement this correctly + cmd_buff[2] = 0x19DDFFDC; + cmd_buff[3] = 0x0002E5DA; + cmd_buff[4] = 0xE5CE1A2D; + cmd_buff[5] = 0x19C6FFF3; + cmd_buff[6] = 0x001CE61E; + LOG_WARNING(Service_HID, "(STUBBED) called"); } diff --git a/src/core/hle/service/hid/hid.h b/src/core/hle/service/hid/hid.h index 517f4f2ae..ebe137525 100644 --- a/src/core/hle/service/hid/hid.h +++ b/src/core/hle/service/hid/hid.h @@ -77,6 +77,24 @@ struct TouchDataEntry { BitField<0, 7, u32> valid; ///< Set to 1 when this entry contains actual X/Y data, otherwise 0 }; +/** + * Structure of a single entry of accelerometer state history within HID shared memory + */ +struct AccelerometerDataEntry { + s16 x; + s16 y; + s16 z; +}; + +/** + * Structure of a single entry of gyroscope state history within HID shared memory + */ +struct GyroscopeDataEntry { + s16 x; + s16 y; + s16 z; +}; + /** * Structure of data stored in HID shared memory */ @@ -112,6 +130,34 @@ struct SharedMem { std::array entries; ///< Last 8 touch entries, in pixel coordinates } touch; + + /// Accelerometer data + struct { + s64 index_reset_ticks; ///< CPU tick count for when HID module updated entry index 0 + s64 index_reset_ticks_previous; ///< Previous `index_reset_ticks` + u32 index; ///< Index of the last updated accelerometer entry + + INSERT_PADDING_WORDS(0x1); + + AccelerometerDataEntry raw_entry; + INSERT_PADDING_BYTES(2); + + std::array entries; + } accelerometer; + + /// Gyroscope data + struct { + s64 index_reset_ticks; ///< CPU tick count for when HID module updated entry index 0 + s64 index_reset_ticks_previous; ///< Previous `index_reset_ticks` + u32 index; ///< Index of the last updated accelerometer entry + + INSERT_PADDING_WORDS(0x1); + + GyroscopeDataEntry raw_entry; + INSERT_PADDING_BYTES(2); + + std::array entries; + } gyroscope; }; // TODO: MSVC does not support using offsetof() on non-static data members even though this @@ -222,6 +268,26 @@ void DisableGyroscopeLow(Interface* self); */ void GetSoundVolume(Interface* self); +/** + * HID::GetGyroscopeLowRawToDpsCoefficient service function + * Inputs: + * None + * Outputs: + * 1 : Result of function, 0 on success, otherwise error code + * 2 : float output value + */ +void GetGyroscopeLowRawToDpsCoefficient(Service::Interface* self); + +/** + * HID::GetGyroscopeLowCalibrateParam service function + * Inputs: + * None + * Outputs: + * 1 : Result of function, 0 on success, otherwise error code + * 2~6 : CalibrateParam? + */ +void GetGyroscopeLowCalibrateParam(Service::Interface* self); + /// Checks for user input updates void Update(); diff --git a/src/core/hle/service/hid/hid_spvr.cpp b/src/core/hle/service/hid/hid_spvr.cpp index c50f597eb..046e65b11 100644 --- a/src/core/hle/service/hid/hid_spvr.cpp +++ b/src/core/hle/service/hid/hid_spvr.cpp @@ -9,16 +9,16 @@ namespace Service { namespace HID { const Interface::FunctionInfo FunctionTable[] = { - {0x000A0000, GetIPCHandles, "GetIPCHandles"}, - {0x000B0000, nullptr, "StartAnalogStickCalibration"}, - {0x000E0000, nullptr, "GetAnalogStickCalibrateParam"}, - {0x00110000, EnableAccelerometer, "EnableAccelerometer"}, - {0x00120000, DisableAccelerometer, "DisableAccelerometer"}, - {0x00130000, EnableGyroscopeLow, "EnableGyroscopeLow"}, - {0x00140000, DisableGyroscopeLow, "DisableGyroscopeLow"}, - {0x00150000, nullptr, "GetGyroscopeLowRawToDpsCoefficient"}, - {0x00160000, nullptr, "GetGyroscopeLowCalibrateParam"}, - {0x00170000, GetSoundVolume, "GetSoundVolume"}, + {0x000A0000, GetIPCHandles, "GetIPCHandles"}, + {0x000B0000, nullptr, "StartAnalogStickCalibration"}, + {0x000E0000, nullptr, "GetAnalogStickCalibrateParam"}, + {0x00110000, EnableAccelerometer, "EnableAccelerometer"}, + {0x00120000, DisableAccelerometer, "DisableAccelerometer"}, + {0x00130000, EnableGyroscopeLow, "EnableGyroscopeLow"}, + {0x00140000, DisableGyroscopeLow, "DisableGyroscopeLow"}, + {0x00150000, GetGyroscopeLowRawToDpsCoefficient, "GetGyroscopeLowRawToDpsCoefficient"}, + {0x00160000, GetGyroscopeLowCalibrateParam, "GetGyroscopeLowCalibrateParam"}, + {0x00170000, GetSoundVolume, "GetSoundVolume"}, }; HID_SPVR_Interface::HID_SPVR_Interface() { diff --git a/src/core/hle/service/hid/hid_user.cpp b/src/core/hle/service/hid/hid_user.cpp index bbdde2abb..bb157b83d 100644 --- a/src/core/hle/service/hid/hid_user.cpp +++ b/src/core/hle/service/hid/hid_user.cpp @@ -9,16 +9,16 @@ namespace Service { namespace HID { const Interface::FunctionInfo FunctionTable[] = { - {0x000A0000, GetIPCHandles, "GetIPCHandles"}, - {0x000B0000, nullptr, "StartAnalogStickCalibration"}, - {0x000E0000, nullptr, "GetAnalogStickCalibrateParam"}, - {0x00110000, EnableAccelerometer, "EnableAccelerometer"}, - {0x00120000, DisableAccelerometer, "DisableAccelerometer"}, - {0x00130000, EnableGyroscopeLow, "EnableGyroscopeLow"}, - {0x00140000, DisableGyroscopeLow, "DisableGyroscopeLow"}, - {0x00150000, nullptr, "GetGyroscopeLowRawToDpsCoefficient"}, - {0x00160000, nullptr, "GetGyroscopeLowCalibrateParam"}, - {0x00170000, GetSoundVolume, "GetSoundVolume"}, + {0x000A0000, GetIPCHandles, "GetIPCHandles"}, + {0x000B0000, nullptr, "StartAnalogStickCalibration"}, + {0x000E0000, nullptr, "GetAnalogStickCalibrateParam"}, + {0x00110000, EnableAccelerometer, "EnableAccelerometer"}, + {0x00120000, DisableAccelerometer, "DisableAccelerometer"}, + {0x00130000, EnableGyroscopeLow, "EnableGyroscopeLow"}, + {0x00140000, DisableGyroscopeLow, "DisableGyroscopeLow"}, + {0x00150000, GetGyroscopeLowRawToDpsCoefficient, "GetGyroscopeLowRawToDpsCoefficient"}, + {0x00160000, GetGyroscopeLowCalibrateParam, "GetGyroscopeLowCalibrateParam"}, + {0x00170000, GetSoundVolume, "GetSoundVolume"}, }; HID_U_Interface::HID_U_Interface() {