static void
portreset(Hub *h, int p)
{
int sts;
Dev *d, *nd;
Port *pp;
d = h->dev;
pp = &h->port[p];
nd = pp->dev;
dprint(2, "%s: %s: port %d: resetting\n", argv0, d->dir, p);
if(hubfeature(h, p, Fportreset, 1) < 0){
dprint(2, "%s: %s: port %d: reset: %r\n", argv0, d->dir, p);
goto Fail;
}
sleep(Resetdelay);
sts = portstatus(h, p);
if(sts < 0)
goto Fail;
if((sts & PSenable) == 0){
dprint(2, "%s: %s: port %d: not enabled?\n", argv0, d->dir, p);
hubfeature(h, p, Fportenable, 1);
sts = portstatus(h, p);
if((sts & PSenable) == 0)
goto Fail;
}
nd = pp->dev;
opendevdata(nd, ORDWR);
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetaddress, nd->id, 0, nil, 0) < 0){
dprint(2, "%s: %s: port %d: setaddress: %r\n", argv0, d->dir, p);
goto Fail;
}
if(devctl(nd, "address") < 0){
dprint(2, "%s: %s: port %d: set address: %r\n", argv0, d->dir, p);
goto Fail;
}
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetconf, 1, 0, nil, 0) < 0){
dprint(2, "%s: %s: port %d: setconf: %r\n", argv0, d->dir, p);
unstall(nd, nd, Eout);
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetconf, 1, 0, nil, 0) < 0)
goto Fail;
}
if(nd->dfd >= 0)
close(nd->dfd);
return;
Fail:
pp->state = Pdisabled;
pp->sts = 0;
if(pp->hub != nil)
pp->hub = nil; /* hub closed by enumhub */
hubfeature(h, p, Fportenable, 0);
if(nd != nil)
devctl(nd, "detach");
closedev(nd);
}
static int
plclearpipes(Serialport *p)
{
Serial *ser;
ser = p->s;
if(ser->type == TypeHX){
vendorwrite(p, PipeDSRst, 0);
vendorwrite(p, PipeUSRst, 0);
}else{
if(unstall(ser->dev, p->epout, Eout) < 0)
dprint(2, "disk: unstall epout: %r\n");
if(unstall(ser->dev, p->epin, Ein) < 0)
dprint(2, "disk: unstall epin: %r\n");
if(unstall(ser->dev, p->epintr, Ein) < 0)
dprint(2, "disk: unstall epintr: %r\n");
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
// decode()
////////////////////////////////////////////////////////////////////////////////
// implements the decode stage
// calls the auto-generated "decode_switch.h" file
////////////////////////////////////////////////////////////////////////////////
InstrSlot
DecodeStage::decode(InstrSlot instr, int pipe) {
bool stage_stall = (instr->get_type() == I_NULL);
if (stage_stall) {
// This is a stall cycle
core->get_cluster()->getProfiler()->timing_stats.dc_bubble++;
} else if (pipe > 0 && is_stalled(pipe-1)) {
// If any previous pipe stalled, so does this one.
core->get_cluster()->getProfiler()->timing_stats.dc_block++;
} else {
// Recycle decoded instructions that could not issue last cycle
if (!instr->is_done_decode()) {
// This was already counted as active in the cycle before it stalled
//using namespace simconst;
// Big nested switch statement covers all instructions
// in autogenerated decoder_switch.h
if (!sim_decode(instr)) {
std::cerr << "Decoder Error: Thread " << instr->thread_id
<< " encountered a bad opcode " << std::hex
<< instr->get_raw_instr() << " @ PC 0x" << instr->get_currPC()
<< "\n";
char str[128];
sprintf(str, "Unknown opcode: 0x%08x", instr->get_raw_instr());
//ExitSim(str, 1);
//assert(0 && "Unreachable");
return instr;
}
}
// Called from inside
//decode_done:
instr->set_done_decode();
// Update decode type so we do not lose it when other stages overwrite the
// type.
instr->set_type_decode(instr->get_type());
// Unstall stage
unstall(pipe);
core->get_cluster()->getProfiler()->timing_stats.dc_active++;
}
// Set instr type in statistics tracking class.
if (I_NULL != instr->get_type()) {
// Set the decoded instruction type
instr->stats.decoded_instr_type = instr->get_type();
if (instr->instr_is_local_memaccess()) instr->stats.is_memory_op = true;
else { /* Add other type checking. */ }
}
return instr;
}
/*
* BUG: does not consider max. power avail.
*/
static Dev*
portattach(Hub *h, int p, int sts)
{
Dev *d;
Port *pp;
Dev *nd;
char fname[80];
char buf[40];
char *sp;
int mp;
int nr;
d = h->dev;
pp = &h->port[p];
nd = nil;
pp->state = Pattached;
dprint(2, "%s: %s: port %d attach sts %#x\n", argv0, d->dir, p, sts);
sleep(Connectdelay);
if(hubfeature(h, p, Fportenable, 1) < 0)
dprint(2, "%s: %s: port %d: enable: %r\n", argv0, d->dir, p);
sleep(Enabledelay);
if(hubfeature(h, p, Fportreset, 1) < 0){
dprint(2, "%s: %s: port %d: reset: %r\n", argv0, d->dir, p);
goto Fail;
}
sleep(Resetdelay);
sts = portstatus(h, p);
if(sts < 0)
goto Fail;
if((sts & PSenable) == 0){
dprint(2, "%s: %s: port %d: not enabled?\n", argv0, d->dir, p);
hubfeature(h, p, Fportenable, 1);
sts = portstatus(h, p);
if((sts & PSenable) == 0)
goto Fail;
}
sp = "full";
if(sts & PSslow)
sp = "low";
if(sts & PShigh)
sp = "high";
dprint(2, "%s: %s: port %d: attached status %#x\n", argv0, d->dir, p, sts);
if(devctl(d, "newdev %s %d", sp, p) < 0){
fprint(2, "%s: %s: port %d: newdev: %r\n", argv0, d->dir, p);
goto Fail;
}
seek(d->cfd, 0, 0);
nr = read(d->cfd, buf, sizeof(buf)-1);
if(nr == 0){
fprint(2, "%s: %s: port %d: newdev: eof\n", argv0, d->dir, p);
goto Fail;
}
if(nr < 0){
fprint(2, "%s: %s: port %d: newdev: %r\n", argv0, d->dir, p);
goto Fail;
}
buf[nr] = 0;
snprint(fname, sizeof(fname), "/dev/usb/%s", buf);
nd = opendev(fname);
if(nd == nil){
fprint(2, "%s: %s: port %d: opendev: %r\n", argv0, d->dir, p);
goto Fail;
}
if(usbdebug > 2)
devctl(nd, "debug 1");
if(opendevdata(nd, ORDWR) < 0){
fprint(2, "%s: %s: opendevdata: %r\n", argv0, nd->dir);
goto Fail;
}
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetaddress, nd->id, 0, nil, 0) < 0){
dprint(2, "%s: %s: port %d: setaddress: %r\n", argv0, d->dir, p);
goto Fail;
}
if(devctl(nd, "address") < 0){
dprint(2, "%s: %s: port %d: set address: %r\n", argv0, d->dir, p);
goto Fail;
}
mp=getmaxpkt(nd, strcmp(sp, "low") == 0);
if(mp < 0){
dprint(2, "%s: %s: port %d: getmaxpkt: %r\n", argv0, d->dir, p);
goto Fail;
}else{
dprint(2, "%s; %s: port %d: maxpkt %d\n", argv0, d->dir, p, mp);
devctl(nd, "maxpkt %d", mp);
}
if((sts & PSslow) != 0 && strcmp(sp, "full") == 0)
dprint(2, "%s: %s: port %d: %s is full speed when port is low\n",
argv0, d->dir, p, nd->dir);
if(configdev(nd) < 0){
dprint(2, "%s: %s: port %d: configdev: %r\n", argv0, d->dir, p);
goto Fail;
}
/*
* We always set conf #1. BUG.
*/
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetconf, 1, 0, nil, 0) < 0){
dprint(2, "%s: %s: port %d: setconf: %r\n", argv0, d->dir, p);
unstall(nd, nd, Eout);
if(usbcmd(nd, Rh2d|Rstd|Rdev, Rsetconf, 1, 0, nil, 0) < 0)
goto Fail;
}
dprint(2, "%s: %U\n", argv0, nd);
pp->state = Pconfiged;
dprint(2, "%s: %s: port %d: configed: %s\n",
argv0, d->dir, p, nd->dir);
return pp->dev = nd;
Fail:
pp->state = Pdisabled;
pp->sts = 0;
if(pp->hub != nil)
pp->hub = nil; /* hub closed by enumhub */
hubfeature(h, p, Fportenable, 0);
if(nd != nil)
devctl(nd, "detach");
closedev(nd);
return nil;
}
