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openFPGALoader
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Enable support for CH347F 

FIx a Windows issue
This commit is contained in:
Patrick Dussud 2025-12-24 12:13:56 -08:00
parent 63a42344bc
commit 84897ffa78
2 changed files with 14 additions and 9 deletions
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22
src/ch347jtag.cpp
View File

@ -29,7 +29,8 @@ using namespace std;
#define MHZ(n) (uint32_t)((n)*UINT32_C(1000000))
#define GHZ(n) (uint32_t)((n)*UINT32_C(1000000000))
#define CH347JTAG_INTF 2
#define CH347TJTAG_INTF 2
#define CH347FJTAG_INTF 4
#define CH347JTAG_WRITE_EP 0x06
#define CH347JTAG_READ_EP 0x86
@ -55,7 +56,7 @@ int CH347Jtag::usb_xfer(unsigned wlen, unsigned rlen, unsigned *ract, bool defer
{
int actual_length = 0;
if (_verbose) {
fprintf(stderr, "usb_xfer: deferred: %ld\n", obuf - _obuf);
fprintf(stderr, "usb_xfer: deferred: %lld\n", obuf - _obuf);
}
if (defer && !rlen && obuf - _obuf + wlen < (MAX_BUFFER - 12)) {
obuf += wlen;
@ -156,7 +157,7 @@ CH347Jtag::CH347Jtag(uint32_t clkHZ, int8_t verbose, int vid, int pid, uint8_t b
while ((dev = devs[i++]) != NULL) {
if (libusb_get_device_descriptor(dev, &desc) < 0)
continue;
if (desc.idVendor != vid || desc.idProduct != pid)
if (desc.idVendor != vid || (desc.idProduct != pid && desc.idProduct != CH347F_JTAG_PID && desc.idProduct != CH347T_JTAG_PID))
continue;
if (bus_addr != 0 && dev_addr != 0 && (libusb_get_bus_number(dev) != bus_addr || libusb_get_device_address(dev) != dev_addr))
continue;
@ -179,19 +180,22 @@ CH347Jtag::CH347Jtag(uint32_t clkHZ, int8_t verbose, int vid, int pid, uint8_t b
printError("failed to get device descriptor");
goto usb_exit;
}
_jtagIntf = (desc.idProduct == CH347T_JTAG_PID) ? CH347TJTAG_INTF : CH347FJTAG_INTF;
if (desc.bcdDevice < 0x241 && pid == CH347T_JTAG_PID) {
if (desc.bcdDevice < 0x241 && desc.idProduct == CH347T_JTAG_PID) {
_is_largerPack = false;
printWarn("Old version of the chip, JTAG might not work");
}else{
_is_largerPack = true;
}
if (libusb_set_auto_detach_kernel_driver(dev_handle, true)) {
#if (!defined(WIN32) && !defined(_WIN64))
//Windows will fails this API call
if (libusb_set_auto_detach_kernel_driver(dev_handle, true) != LIBUSB_SUCCESS) {
printError("libusb error wrile setting auto-detach of kernel driver");
goto usb_exit;
}
if (libusb_claim_interface(dev_handle, CH347JTAG_INTF)) {
#endif
if (libusb_claim_interface(dev_handle, _jtagIntf)) {
printError("libusb error while claiming CH347JTAG interface");
goto usb_close;
}
@ -206,7 +210,7 @@ CH347Jtag::CH347Jtag(uint32_t clkHZ, int8_t verbose, int vid, int pid, uint8_t b
_setClkFreq(clkHZ);
return;
usb_release:
libusb_release_interface(dev_handle, CH347JTAG_INTF);
libusb_release_interface(dev_handle, _jtagIntf);
usb_close:
libusb_close(dev_handle);
usb_exit:
@ -221,7 +225,7 @@ CH347Jtag::~CH347Jtag()
if (wtrans) libusb_free_transfer(wtrans);
if (dev_handle) {
libusb_release_interface(dev_handle, CH347JTAG_INTF);
libusb_release_interface(dev_handle, _jtagIntf);
libusb_close(dev_handle);
dev_handle = 0;
}

1
src/ch347jtag.hpp
View File

@ -33,6 +33,7 @@ class CH347Jtag : public JtagInterface {
private:
bool _verbose;
bool _is_largerPack;
int _jtagIntf;
int setClk(const uint8_t &factor);
libusb_device_handle *dev_handle;