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Initial commit of libgpiod JTAG driver

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Not tested yet.
This commit is contained in:
Niklas Ekström
2022-07-18 18:09:34 +02:00
parent 057ce931f8
commit 12955b8711
8 changed files with 355 additions and 21 deletions
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src/main.cpp
+19 -17
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@@ -617,6 +617,14 @@ static int parse_eng(string arg, double *dst) {
}
}
static int get_bit_index(int mask)
{
for (int i = 0; i < 32; i++)
if (mask & (1 << i))
return i;
return -1;
}
/* arguments parser */
int parse_opt(int argc, char **argv, struct arguments *args, jtag_pins_conf_t *pins_config)
{
@@ -649,7 +657,7 @@ int parse_opt(int argc, char **argv, struct arguments *args, jtag_pins_conf_t *p
("ftdi-serial", "FTDI chip serial number", cxxopts::value<string>(args->ftdi_serial))
("ftdi-channel", "FTDI chip channel number (channels 0-3 map to A-D)", cxxopts::value<int>(args->ftdi_channel))
#ifdef USE_UDEV
#if defined(USE_UDEV) || defined(ENABLE_LIBGPIOD)
("d,device", "device to use (/dev/ttyUSBx)",
cxxopts::value<string>(args->device))
#endif
@@ -683,7 +691,7 @@ int parse_opt(int argc, char **argv, struct arguments *args, jtag_pins_conf_t *p
"write bitstream in SRAM (default: true)")
("o,offset", "start offset in EEPROM",
cxxopts::value<unsigned int>(args->offset))
("pins", "pin config (only for ft232R) TDI:TDO:TCK:TMS",
("pins", "pin config TDI:TDO:TCK:TMS",
cxxopts::value<vector<string>>(pins))
("probe-firmware", "firmware for JTAG probe (usbBlasterII)",
cxxopts::value<string>(args->probe_firmware))
@@ -788,20 +796,19 @@ int parse_opt(int argc, char **argv, struct arguments *args, jtag_pins_conf_t *p
}
static std::map <std::string, int> pins_list = {
{"TXD", FT232RL_TXD},
{"RXD", FT232RL_RXD},
{"RTS", FT232RL_RTS},
{"CTS", FT232RL_CTS},
{"DTR", FT232RL_DTR},
{"DSR", FT232RL_DSR},
{"DCD", FT232RL_DCD},
{"RI" , FT232RL_RI }};
{"TXD", get_bit_index(FT232RL_TXD)},
{"RXD", get_bit_index(FT232RL_RXD)},
{"RTS", get_bit_index(FT232RL_RTS)},
{"CTS", get_bit_index(FT232RL_CTS)},
{"DTR", get_bit_index(FT232RL_DTR)},
{"DSR", get_bit_index(FT232RL_DSR)},
{"DCD", get_bit_index(FT232RL_DCD)},
{"RI" , get_bit_index(FT232RL_RI) }};
for (int i = 0; i < 4; i++) {
int pin_num;
try {
pin_num = 1 << std::stoi(pins[i], nullptr, 0);
pin_num = std::stoi(pins[i], nullptr, 0);
} catch (std::exception &e) {
if (pins_list.find(pins[i]) == pins_list.end()) {
printError("Invalid pin name");
@@ -810,11 +817,6 @@ int parse_opt(int argc, char **argv, struct arguments *args, jtag_pins_conf_t *p
pin_num = pins_list[pins[i]];
}
if (pin_num > FT232RL_RI || pin_num < FT232RL_TXD) {
printError("Invalid pin ID");
throw std::exception();
}
switch (i) {
case 0:
pins_config->tdi_pin = pin_num;