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IO switches

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This commit is contained in:
Wolfgang Spraul 2012-08-12 07:14:04 +02:00
parent a9b890b9a7
commit 273679d34f
2 changed files with 108 additions and 3 deletions
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4
model_main.c
View File

@ -35,10 +35,10 @@ int fpga_build_model(struct fpga_model* model, int fpga_rows, const char* column
rc = init_ports(model);
if (rc) return rc;
#if 0
rc = init_conns(model);
if (rc) return rc;
return 0;
#endif
rc = init_switches(model);
if (rc) return rc;

107
model_switches.c
View File

@ -801,15 +801,120 @@ xout:
return rc;
}
static int init_io_switches(struct fpga_model* model);
static int init_routing_switches(struct fpga_model* model);
int init_switches(struct fpga_model* model)
{
int rc;
// todo: IO_B, IO_TERM_B, IO_LOGIC_TERM_B, IO_OUTER_B, IO_INNER_B, LOGIC_XM
rc = init_io_switches(model);
if (rc) goto xout;
return 0;
rc = init_routing_switches(model);
if (rc) goto xout;
// todo: IO_B, IO_TERM_B, IO_LOGIC_TERM_B, IO_OUTER_B, IO_INNER_B, LOGIC_XM
return 0;
xout:
return rc;
}
static int init_io_tile(struct fpga_model* model, int y, int x)
{
const char* prefix;
int i, num_devs, rc;
if (!y) {
prefix = "TIOB";
rc = add_switch(model, y, x,
pf("%s_DIFFO_OUT2", prefix),
pf("%s_DIFFO_IN3", prefix), 0 /* bidir */);
if (rc) goto xout;
num_devs = 2;
} else if (y == model->y_height - BOT_OUTER_ROW) {
prefix = "BIOB";
rc = add_switch(model, y, x,
pf("%s_DIFFO_OUT3", prefix),
pf("%s_DIFFO_IN2", prefix), 0 /* bidir */);
if (rc) goto xout;
num_devs = 2;
} else if (!x) {
prefix = "LIOB";
num_devs = 1;
} else if (x == model->x_width - RIGHT_OUTER_O) {
prefix = "RIOB";
num_devs = 1;
} else
ABORT(1);
for (i = 0; i < num_devs*2; i++) {
rc = add_switch(model, y, x,
pf("%s_IBUF%i_PINW", prefix, i),
pf("%s_IBUF%i", prefix, i), 0 /* bidir */);
if (rc) goto xout;
rc = add_switch(model, y, x,
pf("%s_O%i", prefix, i),
pf("%s_O%i_PINW", prefix, i), 0 /* bidir */);
if (rc) goto xout;
rc = add_switch(model, y, x,
pf("%s_T%i", prefix, i),
pf("%s_T%i_PINW", prefix, i), 0 /* bidir */);
if (rc) goto xout;
}
rc = add_switch(model, y, x,
pf("%s_DIFFO_OUT0", prefix),
pf("%s_DIFFO_IN1", prefix), 0 /* bidir */);
if (rc) goto xout;
for (i = 0; i <= 1; i++) {
rc = add_switch(model, y, x,
pf("%s_PADOUT%i", prefix, i),
pf("%s_DIFFI_IN%i", prefix, 1-i),
0 /* bidir */);
if (rc) goto xout;
}
if (num_devs > 1) {
for (i = 0; i <= 1; i++) {
rc = add_switch(model, y, x,
pf("%s_PADOUT%i", prefix, i+2),
pf("%s_DIFFI_IN%i", prefix, 3-i),
0 /* bidir */);
if (rc) goto xout;
}
}
return 0;
xout:
return rc;
}
static int init_io_switches(struct fpga_model* model)
{
int x, y, i, rc;
for (x = 0; x < model->x_width; x++) {
if (has_device(model, /*y*/ 0, x, DEV_IOBM)) {
rc = init_io_tile(model, 0, x);
if (rc) goto xout;
}
if (has_device(model, model->y_height - BOT_OUTER_ROW, x,
DEV_IOBM)) {
rc = init_io_tile(model,
model->y_height-BOT_OUTER_ROW, x);
if (rc) goto xout;
}
}
for (y = 0; y < model->y_height; y++) {
if (has_device(model, y, /*x*/ 0, DEV_IOBM)) {
rc = init_io_tile(model, y, 0);
if (rc) goto xout;
}
if (has_device(model, y, model->x_width - RIGHT_OUTER_O,
DEV_IOBM)) {
rc = init_io_tile(model,
y, model->x_width - RIGHT_OUTER_O);
if (rc) goto xout;
}
}
return 0;
xout:
return rc;