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Add experimental support for the AVR32 UC3A4 microcontrollers.

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Add support for the inbuilt unique serial numbers in the UC3A3 and UC3A4 models.
This commit is contained in:
Dean Camera
2011-03-13 22:42:08 +00:00
parent 81fd8d4004
commit a7eca42996
7 changed files with 78 additions and 29 deletions
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LUFA/Drivers/USB/Core/UC3/Device_UC3.h
+47 -10
View File
@@ -77,16 +77,22 @@
#define USB_DEVICE_OPT_FULLSPEED (0 << 0)
//@}
/** String descriptor index for the device's unique serial number string descriptor within the device.
* This unique serial number is used by the host to associate resources to the device (such as drivers or COM port
* number allocations) to a device regardless of the port it is plugged in to on the host. Some microcontrollers contain
* a unique serial number internally, and setting the device descriptors serial number string index to this value
* will cause it to use the internal serial number.
*
* On unsupported devices, this will evaluate to \ref NO_DESCRIPTOR and so will force the host to create a pseudo-serial
* number for the device.
*/
#define USE_INTERNAL_SERIAL NO_DESCRIPTOR
#if (!defined(NO_INTERNAL_SERIAL) && \
(defined(USB_SERIES_UC3A3_AVR) || defined(USB_SERIES_UC3A4_AVR) || \
defined(__DOXYGEN__)))
/** String descriptor index for the device's unique serial number string descriptor within the device.
* This unique serial number is used by the host to associate resources to the device (such as drivers or COM port
* number allocations) to a device regardless of the port it is plugged in to on the host. Some microcontrollers contain
* a unique serial number internally, and setting the device descriptors serial number string index to this value
* will cause it to use the internal serial number.
*
* On unsupported devices, this will evaluate to \ref NO_DESCRIPTOR and so will force the host to create a pseudo-serial
* number for the device.
*/
#define USE_INTERNAL_SERIAL 0xDC
#else
#define USE_INTERNAL_SERIAL NO_DESCRIPTOR
#endif
/* Function Prototypes: */
/** Sends a Remote Wakeup request to the host. This signals to the host that the device should
@@ -171,6 +177,37 @@
{
return AVR32_USBB.UDCON.adden;
}
static inline uint8_t USB_Device_GetSerialString(uint16_t* UnicodeString, const uint8_t MaxLen)
{
uint8_t SerialCharNum = 0;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
{
uint32_t* SigReadAddress = 0x80800204;
for (SerialCharNum = 0; SerialCharNum < MIN(MaxLen, 30); SerialCharNum++)
{
if (SerialCharNum == MaxLen)
break;
uint8_t SerialByte = *SigReadAddress;
if (SerialCharNum & 0x01)
{
SerialByte >>= 4;
SigReadAddress++;
}
SerialByte &= 0x0F;
UnicodeString[SerialCharNum] = cpu_to_le16((SerialByte >= 10) ?
(('A' - 10) + SerialByte) : ('0' + SerialByte));
}
}
return SerialCharNum;
}
#endif
#endif
LUFA/Drivers/USB/Core/UC3/USBController_UC3.h
+1 -1
View File
@@ -294,7 +294,7 @@
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#if defined(USB_SERIES_UC3A3_AVR)
#if (defined(USB_SERIES_UC3A3_AVR) || defined(USB_SERIES_UC3A4_AVR))
#define USB_CLOCK_REQUIRED_FREQ 12000000UL
#else
#define USB_CLOCK_REQUIRED_FREQ 48000000UL