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Code Issues Releases Activity

Added devconf() support.

Browse Source 
Obtained from: Richard Wiwatowski <rjwiwat@adelaide.on.net>
This commit is contained in:
Nate Williams 1996-05-07 21:32:29 +00:00
parent 077e6558ec
commit 0c7b035e39
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=15673
1 changed files with 41 additions and 14 deletions
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55
sys/i386/isa/psm.c
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@ -75,6 +75,7 @@
#define PSM_INT_DISABLE 0x65 /* disable controller interrupts */
#define PSM_DISABLE 0xa7 /* disable auxiliary port */
#define PSM_ENABLE 0xa8 /* enable auxiliary port */
#define PSM_ENABLE 0xa9 /* test auxiliary port */
/* mouse commands */
#define PSM_SET_SCALE11 0xe6 /* set 1:1 scaling */
@ -99,11 +100,12 @@ static void psm_poll_status(int);
static int psmaddr[NPSM]; /* Base I/O port addresses per unit */
#define MSBSZ 1024 /* Output queue size (pwr of 2 is best) */
#define PSM_CHUNK 128 /* chunk size for read */
#define PSM_BSIZE 1024 /* buffer size */
struct ringbuf {
int count, first, last;
char queue[MSBSZ];
char queue[PSM_BSIZE];
};
static struct psm_softc { /* Driver status information */
@ -136,6 +138,27 @@ static struct cdevsw psm_cdevsw =
psmioctl, nostop, nullreset, nodevtotty,
psmselect, nommap, NULL, "psm", NULL, -1 };
static struct kern_devconf kdc_psm[NPSM] = { {
0, 0, 0, /* filled in by dev_attach */
"psm", 0, { MDDT_ISA, 0, "tty" },
isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
&kdc_isa0, /* parent */
0, /* parentdata */
DC_UNCONFIGURED, /* state */
"PS/2 Mouse",
DC_CLS_MISC /* class */
} };
static inline void
psm_registerdev(struct isa_device *id)
{
if(id->id_unit)
kdc_psm[id->id_unit] = kdc_psm[0];
kdc_psm[id->id_unit].kdc_unit = id->id_unit;
kdc_psm[id->id_unit].kdc_isa = id;
dev_attach(&kdc_psm[id->id_unit]);
}
static void
psm_write_dev(int ioport, u_char value)
{
@ -160,13 +183,15 @@ psmprobe(struct isa_device *dvp)
/* XXX: Needs a real probe routine. */
int ioport, c, unit;
psm_registerdev(dvp);
ioport=dvp->id_iobase;
unit=dvp->id_unit;
#ifndef PSM_NO_RESET
psm_write_dev(ioport, PSM_RESET); /* Reset aux device */
psm_poll_status(ioport);
#endif
outb(ioport+PSM_CNTRL, 0xa9);
psm_poll_status(ioport);
outb(ioport+PSM_CNTRL, PSM_AUX_TEST);
psm_poll_status(ioport);
outb(ioport+PSM_CNTRL, 0xaa);
c = inb(ioport+PSM_DATA);
@ -209,6 +234,7 @@ psmattach(struct isa_device *dvp)
/* Setup initial state */
sc->state = 0;
kdc_psm[unit].kdc_state = DC_IDLE;
/* Done */
return (0); /* XXX eh? usually 1 indicates success */
@ -238,6 +264,7 @@ psmopen(dev_t dev, int flag, int fmt, struct proc *p)
return (EBUSY);
/* Initialize state */
kdc_psm[unit].kdc_state = DC_BUSY;
sc->state |= PSM_OPEN;
sc->rsel.si_flags = 0;
sc->rsel.si_pid = 0;
@ -274,10 +301,9 @@ psm_poll_status(int ioport)
{
u_char c;
while(c = inb(ioport+PSM_STATUS) & 0x03) {
while(c = inb(ioport+PSM_STATUS) & 0x03)
if(c & PSM_OUTPUT_ACK == PSM_OUTPUT_ACK)
inb(ioport+PSM_DATA);
}
return;
}
@ -299,6 +325,7 @@ psmclose(dev_t dev, int flag, int fmt, struct proc *p)
/* Complete the close */
sc->state &= ~PSM_OPEN;
kdc_psm[unit].kdc_state = DC_IDLE;
/* close is almost always successful */
return (0);
@ -312,7 +339,7 @@ psmread(dev_t dev, struct uio *uio, int flag)
is unnecessary */
unsigned length;
struct psm_softc *sc;
unsigned char buffer[100];
unsigned char buffer[PSM_CHUNK];
/* Get device information */
sc = &psm_softc[PSMUNIT(dev)];
@ -339,16 +366,16 @@ psmread(dev_t dev, struct uio *uio, int flag)
length = sizeof(buffer);
/* Remove a small chunk from input queue */
if (sc->inq.first + length >= MSBSZ) {
if (sc->inq.first + length >= PSM_BSIZE) {
bcopy(&sc->inq.queue[sc->inq.first],
buffer, MSBSZ - sc->inq.first);
bcopy(sc->inq.queue, &buffer[MSBSZ-sc->inq.first],
length - (MSBSZ - sc->inq.first));
buffer, PSM_BSIZE - sc->inq.first);
bcopy(sc->inq.queue, &buffer[PSM_BSIZE - sc->inq.first],
length - (PSM_BSIZE - sc->inq.first));
}
else
bcopy(&sc->inq.queue[sc->inq.first], buffer, length);
sc->inq.first = (sc->inq.first + length) % MSBSZ;
sc->inq.first = (sc->inq.first + length) % PSM_BSIZE;
sc->inq.count -= length;
/* Copy data to user process */
@ -422,10 +449,10 @@ psmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
void
psmintr(int unit)
{
struct psm_softc *sc = &psm_softc[unit];
struct psm_softc *sc = &psm_softc[unit];
int ioport = psmaddr[unit];
sc->inq.queue[sc->inq.last++ % MSBSZ] = inb(ioport+PSM_DATA);
sc->inq.queue[sc->inq.last++ % PSM_BSIZE] = inb(ioport+PSM_DATA);
sc->inq.count++;
if (sc -> state & PSM_ASLP) {
sc->state &= ~PSM_ASLP;