diff options
| -rw-r--r-- | src/jtag/drivers/ft2232.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c index 7db7bdd2..c040b740 100644 --- a/src/jtag/drivers/ft2232.c +++ b/src/jtag/drivers/ft2232.c @@ -166,12 +166,20 @@ static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK; static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 }; static uint16_t ft2232_pid[MAX_USB_IDS + 1] = { 0x6010, 0 }; +/** This structure describes different layout of FT2232 based devices. */ struct ft2232_layout { + /// Layout name char* name; + /// Lyout specific initialization routine int (*init)(void); + /// Layout specific reset routine void (*reset)(int trst, int srst); + /// Layout specific LED blink routine void (*blink)(void); + /// Which FTDI channel does this layout use int channel; + /// This will forbid bitbanging selected port pins + int bitbang_deny; }; /* init procedures for supported layouts */ @@ -645,6 +653,12 @@ int ft2232_bitbang(void *device, char *signal_name, int GETnSET, int *value){ // Pin mask is also related with port direction and complicates it!!! sigmask=sig->mask; + // First check against restricted port pins defined by the interface layout + if (sigmask & layout->bitbang_deny){ + LOG_ERROR("This interface does not allow to bit-bang selected pins (0x%08X)!", layout->bitbang_deny); + return ERROR_FAIL; + } + if (!GETnSET){ // We will SET port pins selected by sigmask. // Modify our pins value, but remember about other pins and their previous value |