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@@ -48,7 +48,9 @@ enum
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#define SDL_8BITDO_BT_REPORTID_SDL_REPORTID 0x01
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#define ABITDO_ACCEL_SCALE 4096.f
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-#define SENSOR_INTERVAL_NS 8000000ULL
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+#define ABITDO_SENSOR_POLLING_RATE 125.f
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+#define SENSOR_INTERVAL_NS 8000000ULL
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+#define ABITDO_GYRO_MAX_DEGREES_PER_SECOND 2000.f
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typedef struct
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{
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@@ -67,7 +69,7 @@ typedef struct
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float accelScale;
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float gyroScale;
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Uint8 last_state[USB_PACKET_LENGTH];
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- Uint64 sensor_timestamp; // Microseconds. Simulate onboard clock. Advance by known rate: SENSOR_INTERVAL_NS == 8ms = 125 Hz
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+ Uint64 sensor_timestamp; // Nanoseconds. Simulate onboard clock. Advance by known rate: SENSOR_INTERVAL_NS == 8ms = 125 Hz
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} SDL_Driver8BitDo_Context;
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#pragma pack(push,1)
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@@ -240,12 +242,13 @@ static bool HIDAPI_Driver8BitDo_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joys
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joystick->nhats = 1;
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if (ctx->sensors_supported) {
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- SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_GYRO, 125.0f);
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- SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_ACCEL, 125.0f);
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+ SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_GYRO, ABITDO_SENSOR_POLLING_RATE);
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+ SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_ACCEL, ABITDO_SENSOR_POLLING_RATE);
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ctx->accelScale = SDL_STANDARD_GRAVITY / ABITDO_ACCEL_SCALE;
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- ctx->gyroScale = DEG2RAD(2048) / INT16_MAX; // Hardware senses +/- 2048 Degrees per second mapped to +/- INT16_MAX
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+ // Hardware senses +/- N Degrees per second mapped to +/- INT16_MAX
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+ ctx->gyroScale = DEG2RAD(ABITDO_GYRO_MAX_DEGREES_PER_SECOND) / INT16_MAX;
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}
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return true;
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