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@ -109,20 +109,24 @@
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*/
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#define USB_MODE_DEVICE 1
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#if defined(USB_CAN_BE_HOST) || defined(__DOXYGEN__)
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/** Mode mask for the USB_CurrentMode global and the USB_Init() function. This indicates that the
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* USB interface is or should be initialized in the USB host mode.
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*
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* \note Not all USB AVRs support host mode.
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* \note This token is not available on AVR models which do not support host mode.
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*/
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#define USB_MODE_HOST 2
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#endif
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#if defined(USB_CAN_BE_BOTH) || defined(__DOXYGEN__)
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/** Mode mask for the the USB_Init() function. This indicates that the USB interface should be
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* initialized into whatever mode the UID pin of the USB AVR indicates, and that the device
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* should swap over its mode when the level of the UID pin changes during operation.
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*
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* \note Not all USB AVRs support host mode, and thus UID mode.
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* \note This token is not available on AVR models which do not support both host and device modes.
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*/
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#define USB_MODE_UID 3
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#endif
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/** Regulator disable option mask for USB_Init(). This indicates that the internal 3.3V USB data pad
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* regulator should be enabled to regulate the data pin voltages to within the USB standard.
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@ -181,10 +185,14 @@
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*/
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#define EP_TYPE_MASK 0b11
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#if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER) || defined(__DOXYGEN__)
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/** Returns boolean true if the VBUS line is currently high (i.e. the USB host is supplying power),
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* otherwise returns false.
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*
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* \note This token is not available on some AVR models which do not support hardware VBUS monitoring.
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*/
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#define USB_VBUS_GetStatus() ((USBSTA & (1 << VBUS)) ? true : false)
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#endif
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/** Detaches the device from the USB bus. This has the effect of removing the device from any
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* host if, ceasing USB communications. If no host is present, this prevents any host from
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@ -354,20 +362,19 @@
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USBCON = (Temp | (1 << USBE)); }MACROE
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/* Inline Functions: */
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#if defined(USB_CAN_BE_BOTH)
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static inline uint8_t USB_GetUSBModeFromUID(void) ATTR_WARN_UNUSED_RESULT;
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static inline uint8_t USB_GetUSBModeFromUID(void)
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{
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#if (defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__))
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if (USBSTA & (1 << ID))
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return USB_MODE_DEVICE;
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else
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return USB_MODE_HOST;
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#else
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return USB_MODE_DEVICE;
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#endif
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}
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#endif
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#endif
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/* Disable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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}
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Dean Camera
16 years ago