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ecp5: Add some more PIO helper functions

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-07-23 19:15:59 +02:00
parent baa673f9ed
commit 730e56e3dd
2 changed files with 42 additions and 0 deletions
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38
ecp5/arch.cc
View File

@ -329,6 +329,44 @@ std::string Arch::getBelPackagePin(BelId bel) const
return "";
}
int Arch::getPioBelBank(BelId bel) const
{
for (int i = 0; i < chip_info->num_pios; i++) {
if (chip_info->pio_info[i].abs_loc == bel.location && chip_info->pio_info[i].bel_index == bel.index) {
return chip_info->pio_info[i].bank;
}
}
NPNR_ASSERT_FALSE("failed to find PIO");
}
std::string Arch::getPioFunctionName(BelId bel) const
{
for (int i = 0; i < chip_info->num_pios; i++) {
if (chip_info->pio_info[i].abs_loc == bel.location && chip_info->pio_info[i].bel_index == bel.index) {
const char *func = chip_info->pio_info[i].function_name.get();
if (func == nullptr)
return "";
else
return func;
}
}
NPNR_ASSERT_FALSE("failed to find PIO");
}
BelId Arch::getPioByFunctionName(const std::string &name) const
{
for (int i = 0; i < chip_info->num_pios; i++) {
const char *func = chip_info->pio_info[i].function_name.get();
if (func != nullptr && func == name) {
BelId bel;
bel.location = chip_info->pio_info[i].abs_loc;
bel.index = chip_info->pio_info[i].bel_index;
return bel;
}
}
return BelId();
}
std::vector<PortPin> Arch::getBelPins(BelId bel) const
{

4
ecp5/arch.h
View File

@ -733,6 +733,10 @@ struct Arch : BaseCtx
BelId getPackagePinBel(const std::string &pin) const;
std::string getBelPackagePin(BelId bel) const;
int getPioBelBank(BelId bel) const;
// For getting GCLK, PLL, Vref, etc, pins
std::string getPioFunctionName(BelId bel) const;
BelId getPioByFunctionName(const std::string &name) const;
PortType getBelPinType(BelId bel, PortPin pin) const;