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openFPGALoader
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cmsisDAP: close device and context after use/ when fail

This commit is contained in:
Gwenhael Goavec-Merou 2021-10-13 06:46:05 +02:00
parent 2d26b9d485
commit de88698b0c
1 changed files with 22 additions and 5 deletions
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27
src/cmsisDAP.cpp
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@ -116,12 +116,16 @@ CmsisDAP::CmsisDAP(int vid, int pid, bool verbose):_verbose(verbose),
}
/* no devices: stop */
if (dev_found.empty())
if (dev_found.empty()) {
hid_exit();
throw std::runtime_error("No device found");
}
/* more than one device: can't continue without more information */
if (dev_found.size() > 1)
if (dev_found.size() > 1) {
hid_exit();
throw std::runtime_error(
"Error: more than one device. Please provides VID/PID");
}
printInfo("Found " + std::to_string(dev_found.size()) + " compatible device:");
for (size_t i = 0; i < dev_found.size(); i++) {
@ -181,6 +185,8 @@ CmsisDAP::CmsisDAP(int vid, int pid, bool verbose):_verbose(verbose),
memset(_buffer, 0, 65);
int res = read_info(INFO_ID_HWCAP, _buffer, 64);
if (res < 0) {
hid_close(_dev);
hid_exit();
char t[256];
snprintf(t, sizeof(t), "Error %d for command %d\n", res, INFO_ID_HWCAP);
throw std::runtime_error(t);
@ -188,12 +194,18 @@ CmsisDAP::CmsisDAP(int vid, int pid, bool verbose):_verbose(verbose),
if (verbose)
printf("Hardware cap %02x %02x %02x\n", _buffer[0], _buffer[1], _buffer[2]);
if (!(_buffer[2] & (1 << 1)))
if (!(_buffer[2] & (1 << 1))) {
hid_close(_dev);
hid_exit();
throw std::runtime_error("JTAG is not supported by the probe");
}
/* send connect */
if (dapConnect() != 1)
if (dapConnect() != 1) {
hid_close(_dev);
hid_exit();
throw std::runtime_error("DAP connection in JTAG mode failed");
}
}
CmsisDAP::~CmsisDAP()
@ -203,6 +215,10 @@ CmsisDAP::~CmsisDAP()
*/
if (_is_connect)
dapDisconnect();
if (_dev)
hid_close(_dev);
hid_exit();
if (_ll_buffer)
free(_ll_buffer);
}
@ -244,7 +260,8 @@ int CmsisDAP::dapDisconnect()
*/
int CmsisDAP::dapResetTarget()
{
int ret = xfer(DAP_RESETTARGET, NULL, 0);
_ll_buffer[1] = DAP_RESETTARGET;
int ret = xfer(1, NULL, 0);
if (ret <= 0)
return ret;
return 1;