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devamlc: remove some prints, add some comments, moved an if

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This commit is contained in:
Jim
2011-11-26 11:47:31 -05:00
parent ae7a089a5d
commit 49a81258ae
1 changed files with 15 additions and 9 deletions
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24
devamlc.h
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@@ -29,6 +29,14 @@
clock-line board generates EOR interrupts in this implementation.
AMLDIM does not fill output queues on just an EOR interrupt.
- AMLDIM ignores the "buffer number" bit on a status request.
Instead, it switches buffers only when the current buffer is
completely full. This means, for example, it isn't possible to do
an EOR interrupt when a single character comes in and switch to
the other buffer, because AMLDIM will not check the other buffer.
Basically, there is a race condition between the hardware and
AMLDIM if the bufnum status bit is used, so Prime didn't use it.
- AMLDIM fills *every* AMLC board's output queue only when the
clock line board interrupts with the "character time interrupt"
(CTI) bit set; it also reads *every* AMLC board's input. This
@@ -578,19 +586,17 @@ int devamlc (int class, int func, int device) {
} else if (func == 07) { /* input AMLC status */
dc[dx].interrupting = 0;
putcrs16(A, 040000 | (dc[dx].bufnum<<8) | (dc[dx].intenable<<5) | (1<<4));
if (anyeor) {
putcrs16(A, getcrs16(A) | 0100000);
for (dx=0; dx<MAXBOARDS; dx++)
dc[dx].eor = 0;
anyeor = 0;
}
if (wascti) {
putcrs16(A, getcrs16(A) | 0x8f); /* last line cti */
wascti = 0;
}
//printf("INA '07%02o returns 0x%x\n", device, getcrs16(A));
IOSKIP;
if (getcrs16(A) & 0100000) {
if (anyeor) {
putcrs16(A, getcrs16(A) | 0100000);
for (dx=0; dx<MAXBOARDS; dx++)
dc[dx].eor = 0;
anyeor = 0;
maxxmit = 0; /* ugh! sloppy... */
goto dorecv;
}
@@ -1007,7 +1013,7 @@ int devamlc (int class, int func, int device) {
struct sockaddr_in raddr;
dc[dx].obtimer[lx] = tv.tv_sec + AMLCCONNECT;
printf("em: trying to connect to 0x%08x:%d\n", dc[dx].obhost[lx], dc[dx].obport[lx]);
//printf("em: trying to connect to 0x%08x:%d\n", dc[dx].obhost[lx], dc[dx].obport[lx]);
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0) {
perror("em: unable to create socket for outbound AMLC connection");
@@ -1032,7 +1038,7 @@ int devamlc (int class, int func, int device) {
}
dc[dx].fd[lx] = fd;
dc[dx].connected |= BITMASK16(lx+1);
printf("em: connected to 0x%08x:%d, fd=%d\n", dc[dx].obhost[lx], dc[dx].obport[lx], fd);
//printf("em: connected to 0x%08x:%d, fd=%d\n", dc[dx].obhost[lx], dc[dx].obport[lx], fd);
}
} else {
//printf("Draining output queue on line %d\n", lx);