IOReturn DownloadToAnchorDevice(IOUSBDeviceInterface245 **dev)
{
int i;
UInt8 writeVal;
IOReturn kr;
// Assert reset
writeVal = 1;
kr = AnchorWrite(dev, k8051_USBCS, 1, &writeVal);
if (kIOReturnSuccess != kr)
{
printf("AnchorWrite reset returned err 0x%x!\n", kr);
(*dev)->USBDeviceClose(dev);
(*dev)->Release(dev);
return kr;
}
i = 0;
// Download code
while (bulktest[i].Type == 0)
{
kr = AnchorWrite(dev, bulktest[i].Address, bulktest[i].Length, bulktest[i].Data);
if (kIOReturnSuccess != kr)
{
printf("AnchorWrite download %i returned err 0x%x!\n", i, kr);
(*dev)->USBDeviceClose(dev);
(*dev)->Release(dev);
return kr;
}
i++;
}
// De-assert reset
writeVal = 0;
kr = AnchorWrite(dev, k8051_USBCS, 1, &writeVal);
if (kIOReturnSuccess != kr)
{
printf("AnchorWrite run returned err 0x%x!\n", kr);
}
return kr;
}
//
// start
// when this method is called, I have been selected as the driver for this device.
// I can still return false to allow a different driver to load
//
bool
com_apple_AnchorUSB::start(IOService *provider)
{
IOReturn err;
UInt8 writeVal;
int i = 0;
const IOUSBConfigurationDescriptor *cd;
// Do all the work here, on an IOKit matching thread.
IOLog("%s(%p)::start!\n", getName(), this);
fDevice = OSDynamicCast(IOUSBDevice, provider);
if(!fDevice)
{
IOLog("%s(%p)::start - Provider isn't a USB device!!!\n", getName(), this);
return false;
}
// Find the first config/interface
if (fDevice->GetNumConfigurations() < 1)
{
IOLog("%s(%p)::start - no composite configurations\n", getName(), this);
return false;
}
cd = fDevice->GetFullConfigurationDescriptor(0);
// set the configuration to the first config
if (!cd)
{
IOLog("%s(%p)::start - no config descriptor\n", getName(), this);
return false;
}
if (!fDevice->open(this))
{
IOLog("%s(%p)::start - unable to open device for configuration\n", getName(), this);
return false;
}
err = fDevice->SetConfiguration(this, cd->bConfigurationValue, true);
if (err)
{
IOLog("%s(%p)::start - unable to set the configuration\n", getName(), this);
fDevice->close(this);
return false;
}
// Assert reset
writeVal = 1;
err = AnchorWrite(k8051_USBCS, 1, &writeVal);
if(kIOReturnSuccess != err)
{
IOLog("%s(%p)::start - AnchorWrite reset returned err 0x%x!\n", getName(), this, err);
fDevice->close(this);
return false;
}
// Download code
while(demotonehex[i].Type == 0)
{
err = AnchorWrite(demotonehex[i].Address, demotonehex[i].Length, demotonehex[i].Data);
if(kIOReturnSuccess != err)
{
IOLog("%s(%p)::start - AnchorWrite download %i returned err 0x%x!\n", getName(), this, i, err);
fDevice->close(this);
return false;
}
i++;
}
// De-assert reset
writeVal = 0;
err = AnchorWrite(k8051_USBCS, 1, &writeVal);
if(kIOReturnSuccess != err)
{
IOLog("%s(%p)::start - AnchorWrite run returned err 0x%x!\n", getName(), this, err);
fDevice->close(this);
return false;
}
// leave the device open for now, to maintain exclusive access
return true;
}
