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Removed new Start of Frame event from the library; performance suffered far too much and it was only useful in one of the standard classes (HID). Altered HID demos to use the previous method of tracking millisecond periods via a hardware timer rather than the SOF events.

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Fixed MIDI class driver blocking on unread events to the host.
This commit is contained in:
Dean Camera
2009-06-02 10:54:32 +00:00
parent 74b7c07e96
commit 7c5444b89a
24 changed files with 78 additions and 109 deletions
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13
Demos/Device/Keyboard/Keyboard.c
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@@ -41,7 +41,7 @@ USB_ClassInfo_HID_t Keyboard_HID_Interface =
.ReportOUTEndpointNumber = KEYBOARD_LEDS_EPNUM,
.ReportOUTEndpointSize = KEYBOARD_EPSIZE,
.ReportBufferSize = sizeof(USB_KeyboardReport_Data_t),
.ReportINBufferSize = sizeof(USB_KeyboardReport_Data_t),
.IdleCount = 500,
};
@@ -73,6 +73,12 @@ void SetupHardware()
LEDs_Init();
Buttons_Init();
USB_Init();
/* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */
OCR0A = ((F_CPU / 64) / 1000);
TCCR0A = (1 << WGM01);
TCCR0B = ((1 << CS01) | (1 << CS00));
TIMSK0 = (1 << OCIE0A);
}
void EVENT_USB_Connect(void)
@@ -98,9 +104,10 @@ void EVENT_USB_UnhandledControlPacket(void)
USB_HID_ProcessControlPacket(&Keyboard_HID_Interface);
}
void EVENT_USB_StartOfFrame(void)
ISR(TIMER0_COMPA_vect, ISR_BLOCK)
{
USB_HID_RegisterStartOfFrame(&Keyboard_HID_Interface);
if (Keyboard_HID_Interface.IdleMSRemaining)
Keyboard_HID_Interface.IdleMSRemaining--;
}
uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData)

1
Demos/Device/Keyboard/Keyboard.h
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@@ -78,7 +78,6 @@
void EVENT_USB_Disconnect(void);
void EVENT_USB_ConfigurationChanged(void);
void EVENT_USB_UnhandledControlPacket(void);
void EVENT_USB_StartOfFrame(void);
uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData);
void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo,