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serial number handling by ROM

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This commit is contained in:
NIIBE Yutaka
2011-05-11 10:56:36 +09:00
parent 661c8e63dc
commit 93a7515bcd
6 changed files with 59 additions and 38 deletions
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37
src/usb_prop.c
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@@ -36,30 +36,10 @@
#include "usb-cdc-vport.c"
#endif
static uint8_t gnukStringSerial[] = {
13*2+2, /* bLength */
USB_STRING_DESCRIPTOR_TYPE, /* bDescriptorType */
'0', 0, '.', 0, '1', 0, '1', 0, /* Version number of Gnuk */
'-', 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
#define ID_OFFSET 12
static void
gnuk_device_init (void)
{
const uint8_t *u = unique_device_id ();
int i;
for (i = 0; i < 4; i++)
{
gnukStringSerial[i*4+ID_OFFSET+0] = (u[i*2] >> 4) + 'A';
gnukStringSerial[i*4+ID_OFFSET+1] = 0;
gnukStringSerial[i*4+ID_OFFSET+2] = (u[i*2+1] & 0x0f) + 'A';
gnukStringSerial[i*4+ID_OFFSET+3] = 0;
}
pInformation->Current_Configuration = 0;
/* Connect the device */
@@ -205,22 +185,13 @@ static uint8_t *
gnuk_device_GetStringDescriptor (uint16_t Length)
{
uint8_t wValue0 = pInformation->USBwValue0;
uint32_t wOffset = pInformation->Ctrl_Info.Usb_wOffset;
if (wValue0 == 3)
/* Serial number is requested */
if (Length == 0)
{
pInformation->Ctrl_Info.Usb_wLength = sizeof gnukStringSerial - wOffset;
return 0;
}
else
return gnukStringSerial + wOffset;
else if (wValue0 > (sizeof (String_Descriptor) / sizeof (ONE_DESCRIPTOR)))
if (wValue0 > (sizeof (String_Descriptor) / sizeof (ONE_DESCRIPTOR)))
return NULL;
else
return Standard_GetDescriptorData (Length,
(PONE_DESCRIPTOR)&String_Descriptor[wValue0]);
return
Standard_GetDescriptorData (Length,
(PONE_DESCRIPTOR)&String_Descriptor[wValue0]);
}
#ifdef ENABLE_VIRTUAL_COM_PORT