|
|
|
|
@ -37,6 +37,16 @@
|
|
|
|
|
|
|
|
|
|
#include "Descriptors.h"
|
|
|
|
|
|
|
|
|
|
#if defined(RESET_TOGGLES_LIBUSB_COMPAT) || defined(__DOXYGEN__)
|
|
|
|
|
static bool AVRISP_NeedCompatibilitySwitch ATTR_NO_INIT;
|
|
|
|
|
|
|
|
|
|
/** Current AVRISP data IN endpoint address. */
|
|
|
|
|
uint8_t AVRISP_CurrDataINEndpointAddress;
|
|
|
|
|
|
|
|
|
|
/** Saved AVRISP data IN endpoint address in EEPROM. */
|
|
|
|
|
uint8_t AVRISP_CurrDataINEndpointAddress_EEPROM EEMEM;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
|
|
|
|
|
* device characteristics, including the supported USB version, control endpoint size and the
|
|
|
|
|
* number of device configurations. The descriptor is read out by the USB host when the enumeration
|
|
|
|
|
@ -69,7 +79,7 @@ const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
|
|
|
|
|
* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
|
|
|
|
|
* a configuration so that the host may correctly communicate with the USB device.
|
|
|
|
|
*/
|
|
|
|
|
const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
|
|
|
|
|
USB_Descriptor_Configuration_t ConfigurationDescriptor =
|
|
|
|
|
{
|
|
|
|
|
.Config =
|
|
|
|
|
{
|
|
|
|
|
@ -106,7 +116,11 @@ const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
|
|
|
|
|
{
|
|
|
|
|
.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
|
|
|
|
|
|
|
|
|
|
#if defined(RESET_TOGGLES_LIBUSB_COMPAT)
|
|
|
|
|
.EndpointAddress = 0,
|
|
|
|
|
#else
|
|
|
|
|
.EndpointAddress = AVRISP_DATA_IN_EPADDR,
|
|
|
|
|
#endif
|
|
|
|
|
.Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
|
|
|
|
|
.EndpointSize = AVRISP_DATA_EPSIZE,
|
|
|
|
|
.PollingIntervalMS = 0x0A
|
|
|
|
|
@ -174,7 +188,8 @@ const USB_Descriptor_String_t PROGMEM SerialString =
|
|
|
|
|
*/
|
|
|
|
|
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
|
|
|
|
|
const uint8_t wIndex,
|
|
|
|
|
const void** const DescriptorAddress)
|
|
|
|
|
const void** const DescriptorAddress,
|
|
|
|
|
uint8_t* DescriptorMemorySpace)
|
|
|
|
|
{
|
|
|
|
|
const uint8_t DescriptorType = (wValue >> 8);
|
|
|
|
|
const uint8_t DescriptorNumber = (wValue & 0xFF);
|
|
|
|
|
@ -182,6 +197,8 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
|
|
|
|
|
const void* Address = NULL;
|
|
|
|
|
uint16_t Size = NO_DESCRIPTOR;
|
|
|
|
|
|
|
|
|
|
*DescriptorMemorySpace = MEMSPACE_FLASH;
|
|
|
|
|
|
|
|
|
|
switch (DescriptorType)
|
|
|
|
|
{
|
|
|
|
|
case DTYPE_Device:
|
|
|
|
|
@ -189,6 +206,11 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
|
|
|
|
|
Size = sizeof(USB_Descriptor_Device_t);
|
|
|
|
|
break;
|
|
|
|
|
case DTYPE_Configuration:
|
|
|
|
|
*DescriptorMemorySpace = MEMSPACE_RAM;
|
|
|
|
|
#if defined(RESET_TOGGLES_LIBUSB_COMPAT)
|
|
|
|
|
ConfigurationDescriptor.AVRISP_DataInEndpoint.EndpointAddress = AVRISP_CurrDataINEndpointAddress;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
Address = &ConfigurationDescriptor;
|
|
|
|
|
Size = sizeof(USB_Descriptor_Configuration_t);
|
|
|
|
|
break;
|
|
|
|
|
@ -220,3 +242,70 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
|
|
|
|
|
return Size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if defined(RESET_TOGGLES_LIBUSB_COMPAT) || defined(__DOXYGEN__)
|
|
|
|
|
/** Checks the state of the system status register MCUSR and indicates via a flag if
|
|
|
|
|
* the current AVRISP driver compatibility mode needs to be reset.
|
|
|
|
|
*
|
|
|
|
|
* When the \c RESET_TOGGLES_LIBUSB_COMPAT compile time option is enabled, pulling
|
|
|
|
|
* the reset line of the AVR low will toggle between Jungo and libUSB compatibility
|
|
|
|
|
* modes. Other forms of reset (such as power on or watchdog) will not force a mode
|
|
|
|
|
* change.
|
|
|
|
|
*/
|
|
|
|
|
void CheckExternalReset(void)
|
|
|
|
|
{
|
|
|
|
|
/* If an external reset occured, we need to change compatibility mode */
|
|
|
|
|
AVRISP_NeedCompatibilitySwitch = (MCUSR == (1 << EXTRF));
|
|
|
|
|
|
|
|
|
|
MCUSR = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/** Updates the device descriptors so that the correct compatibility mode is used
|
|
|
|
|
* when the \c RESET_TOGGLES_LIBUSB_COMPAT compile time option is enabled. This
|
|
|
|
|
* configures the programmer for either Jungo or libUSB driver compatibility. Each
|
|
|
|
|
* time the AVR is reset via pulling the reset line low the compatibility mode will
|
|
|
|
|
* be toggled. The current mode is stored in EEPROM and preserved through power
|
|
|
|
|
* cycles of the AVR.
|
|
|
|
|
*/
|
|
|
|
|
void UpdateCurrentCompatibilityMode(void)
|
|
|
|
|
{
|
|
|
|
|
/* Load the current IN endpoint address stored in EEPROM */
|
|
|
|
|
AVRISP_CurrDataINEndpointAddress = eeprom_read_byte(&AVRISP_CurrDataINEndpointAddress_EEPROM);
|
|
|
|
|
|
|
|
|
|
/* Check if we need to switch compatibility modes */
|
|
|
|
|
if (AVRISP_NeedCompatibilitySwitch)
|
|
|
|
|
{
|
|
|
|
|
/* Toggle between compatibility modes */
|
|
|
|
|
AVRISP_CurrDataINEndpointAddress = (AVRISP_CurrDataINEndpointAddress == AVRISP_DATA_IN_EPADDR_LIBUSB) ?
|
|
|
|
|
AVRISP_DATA_IN_EPADDR_JUNGO : AVRISP_DATA_IN_EPADDR_LIBUSB;
|
|
|
|
|
|
|
|
|
|
/* Save the new mode into EEPROM */
|
|
|
|
|
eeprom_update_byte(&AVRISP_CurrDataINEndpointAddress_EEPROM, AVRISP_CurrDataINEndpointAddress);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
LEDs_SetAllLEDs(LEDS_NO_LEDS);
|
|
|
|
|
|
|
|
|
|
/* Validate IN endpoint address and indicate current mode via LED flashes */
|
|
|
|
|
switch (AVRISP_CurrDataINEndpointAddress)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
/* Default to Jungo compatibility mode if saved EEPROM is invalid */
|
|
|
|
|
AVRISP_CurrDataINEndpointAddress = AVRISP_DATA_IN_EPADDR_JUNGO;
|
|
|
|
|
case AVRISP_DATA_IN_EPADDR_JUNGO:
|
|
|
|
|
/* Two flashes for Jungo compatibility mode */
|
|
|
|
|
for (uint8_t i = 0; i < 4; i++)
|
|
|
|
|
{
|
|
|
|
|
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
|
|
|
|
|
Delay_MS(100);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case AVRISP_DATA_IN_EPADDR_LIBUSB:
|
|
|
|
|
/* Five flashes for libUSB compatibility mode */
|
|
|
|
|
for (uint8_t i = 0; i < 10; i++)
|
|
|
|
|
{
|
|
|
|
|
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
|
|
|
|
|
Delay_MS(100);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
Dean Camera
12 years ago