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Sync to author's Version 1.3.

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Submitted by:	james
This commit is contained in:
Jordan K. Hubbard 1995-08-01 07:07:42 +00:00
parent a2048b9c26
commit d660e3ae8d
1 changed files with 20 additions and 9 deletions
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29
sys/i386/isa/spigot.c
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@ -35,7 +35,7 @@
* We are working with the vendor so I can release the code, please don't
* ask me for it. When/if I can release it, I will.
*
* Version 1.1, Feb 1, 1995.
* Version 1.3, June 23, 1995.
*
*/
@ -74,6 +74,7 @@ struct spigot_softc {
/* flags in softc */
#define OPEN 0x01
#define ALIVE 0x02
#define UNIT(dev) minor(dev)
@ -118,13 +119,18 @@ int
spigot_probe(struct isa_device *devp)
{
int status;
struct spigot_softc *ss=(struct spigot_softc *)&spigot_softc[devp->id_unit];
spigot_registerdev(devp);
ss->flags = 0;
ss->maddr = (char *)0;
if(devp->id_iobase != 0xad6 || inb(0xad9) == 0xff) /* ff if board isn't there??? */
status = 0;
else
status = 1;
if(devp->id_iobase != 0xad6 || inb(0xad9) == 0xff)
status = 0; /* not found */
else {
status = 1; /* found */
ss->flags |= ALIVE;
spigot_registerdev(devp);
}
return(status);
}
@ -132,10 +138,10 @@ int status;
int
spigot_attach(struct isa_device *devp)
{
struct spigot_softc *ss=(struct spigot_softc *)&spigot_softc[devp->id_unit];
struct spigot_softc *ss=(struct spigot_softc *)&spigot_softc[devp->id_unit];
kdc_spigot[devp->id_unit].kdc_state = DC_UNKNOWN;
ss->flags = 0;
ss->maddr = devp->id_maddr;
return 1;
@ -146,9 +152,12 @@ spigot_open(dev_t dev, int flag)
{
struct spigot_softc *ss = (struct spigot_softc *)&spigot_softc[UNIT(dev)];
if((ss->flags & ALIVE) == 0)
return ENXIO;
if(ss->flags & OPEN)
return EBUSY;
ss->flags |= OPEN;
ss->p = 0;
ss->signal_num = 0;
@ -244,8 +253,10 @@ spigot_mmap(dev_t dev, int offset, int nprot)
{
struct spigot_softc *ss = (struct spigot_softc *)&spigot_softc[0];
if(offset != 0)
if(offset != 0) {
printf("spigot mmap offset = 0x%x\n", offset);
return 0;
}
if(nprot & PROT_EXEC)
return 0;