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tkey-libs: Import tag fw-4 of tkey-libs

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- Use tag fw-4 from https://github.com/tillitis/tkey-libs/
This commit is contained in:
Mikael Ågren 2025-04-23 14:21:08 +02:00
parent f75620720f
commit 353d7e9f50
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GPG key ID: E02DA3D397792C46
20 changed files with 864 additions and 81 deletions
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48
hw/application_fpga/tkey-libs/libcommon/io.c
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@ -74,15 +74,20 @@ static void write_with_header(enum ioend dest, const uint8_t *buf,
// write blockingly writes nbytes bytes of data from buf to dest which
// is either:
//
// - IO_UART: Low-level UART access, no USB Mode Header added.
//
// - IO_QEMU: QEMU debug port
//
// - IO_UART: Low-level UART access, no USB Mode Header added.
// - IO_CH552: Internal communication between the FPGA and the
// CH552, with header.
//
// - IO_CDC: Through the UART for the CDC endpoint, with header.
//
// - IO_HID: Through the UART for the HID endpoint, with header.
// - IO_FIDO: Through the UART for the FIDO endpoint, with header.
//
// - IO_TKEYCTRL: Through the UART for the debug HID endpoint, with
// - IO_CCID: Through the UART for the CCID endpoint, with header.
//
// - IO_DEBUG: Through the UART for the DEBUG endpoint (USB HID), with
// header.
void write(enum ioend dest, const uint8_t *buf, size_t nbytes)
{
@ -194,18 +199,20 @@ static int discard(size_t nbytes)
//
// Use like this:
//
// readselect(IO_CDC|IO_HID, &endpoint, &len)
// readselect(IO_CDC|IO_FIDO, &endpoint, &len)
//
// to wait for some data from either the CDC or the HID endpoint.
// to wait for some data from either the CDC or the FIDO endpoint.
//
// NOTE WELL: You need to call readselect() first, before doing any
// calls to read().
//
// Only endpoints available for read are:
//
// - IO_TKEYCTRL
// - IO_CH552
// - IO_CDC
// - IO_HID
// - IO_FIDO
// - IO_CCID
// - IO_DEBUG
//
// If you need blocking low-level UART reads, use uart_read() instead.
//
@ -215,7 +222,7 @@ static int discard(size_t nbytes)
// Returns non-zero on error.
int readselect(int bitmask, enum ioend *endpoint, uint8_t *len)
{
if (bitmask & IO_UART || bitmask & IO_QEMU) {
if ((bitmask & IO_UART) || (bitmask & IO_QEMU)) {
// Not possible to use readselect() on these
// endpoints.
return -1;
@ -348,3 +355,28 @@ void hexdump(enum ioend dest, void *buf, int len)
write(dest, rowbuf, rowpos);
}
}
// Configure USB endpoints that should be enabled/disabled
//
// Allowed options are:
// - IO_FIDO (can't be used used together with IO_CCID)
// - IO_CCID (can't be used used together with IO_FIDO)
// - IO_DEBUG
//
// The following are always enabled:
// - IO_CDC
// - IO_CH552
//
// Use like this:
//
// config_endpoints(IO_FIDO|IO_DEBUG)
//
void config_endpoints(enum ioend endpoints)
{
uint8_t cmdbuf[2] = {0};
cmdbuf[0] = SET_ENDPOINTS;
cmdbuf[1] = endpoints;
write(IO_CH552, cmdbuf, 2);
}