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Remove compile time limit on number of devices.

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This commit is contained in:
Poul-Henning Kamp 1999-08-08 22:25:46 +00:00
parent fca3f34ff8
commit 1a03ce6c63
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=49550
1 changed files with 17 additions and 25 deletions
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42
sys/dev/ppbus/pps.c
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@ -6,7 +6,7 @@
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id: pps.c,v 1.18 1999/05/30 16:51:36 phk Exp $
* $Id: pps.c,v 1.19 1999/05/31 11:25:00 phk Exp $
*
* This driver implements a draft-mogul-pps-api-02.txt PPS source.
*
@ -15,29 +15,23 @@
*
*/
#include "opt_devfs.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/timepps.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#include <sys/malloc.h>
#include <dev/ppbus/ppbconf.h>
#include "pps.h"
#define PPS_NAME "lppps" /* our official name */
#define PPS_NAME "pps" /* our official name */
static struct pps_data {
int pps_unit;
struct pps_data {
int pps_open;
struct ppb_device pps_dev;
struct pps_state pps;
} *softc[NPPS];
};
static int npps;
@ -47,7 +41,7 @@ static int npps;
static struct ppb_device *ppsprobe(struct ppb_data *ppb);
static int ppsattach(struct ppb_device *dev);
static void ppsintr(int unit);
static void ppsintr(struct ppb_device *ppd);
static struct ppb_driver ppsdriver = {
ppsprobe, ppsattach, PPS_NAME
@ -88,6 +82,7 @@ ppsprobe(struct ppb_data *ppb)
{
struct pps_data *sc;
static int once;
dev_t dev;
if (!once++)
cdevsw_add(&pps_cdevsw);
@ -100,14 +95,16 @@ ppsprobe(struct ppb_data *ppb)
}
bzero(sc, sizeof(struct pps_data));
softc[npps] = sc;
dev = make_dev(&pps_cdevsw, npps,
UID_ROOT, GID_WHEEL, 0644, PPS_NAME "%d", npps);
sc->pps_unit = npps++;
dev->si_drv1 = sc;
sc->pps_dev.id_unit = sc->pps_unit;
sc->pps_dev.id_unit = npps++;
sc->pps_dev.ppb = ppb;
sc->pps_dev.name = ppsdriver.name;
sc->pps_dev.intr = ppsintr;
sc->pps_dev.bintr = ppsintr;
sc->pps_dev.drv1 = sc;
sc->pps.ppscap = PPS_CAPTUREASSERT | PPS_ECHOASSERT;
pps_init(&sc->pps);
@ -124,11 +121,6 @@ ppsattach(struct ppb_device *dev)
printf(PPS_NAME "%d: <Pulse per second Timing Interface> on ppbus %d\n",
dev->id_unit, dev->ppb->ppb_link->adapter_unit);
#ifdef DEVFS
devfs_add_devswf(&pps_cdevsw,
dev->id_unit, DV_CHR,
UID_ROOT, GID_WHEEL, 0600, PPS_NAME "%d", dev->id_unit);
#endif
return (1);
}
@ -141,7 +133,7 @@ ppsopen(dev_t dev, int flags, int fmt, struct proc *p)
if ((unit >= npps))
return (ENXIO);
sc = softc[unit];
sc = dev->si_drv1;
if (!sc->pps_open) {
if (ppb_request_bus(&sc->pps_dev, PPB_WAIT|PPB_INTR))
@ -158,7 +150,7 @@ ppsopen(dev_t dev, int flags, int fmt, struct proc *p)
static int
ppsclose(dev_t dev, int flags, int fmt, struct proc *p)
{
struct pps_data *sc = softc[minor(dev)];
struct pps_data *sc = dev->si_drv1;
sc->pps.ppsparam.mode = 0; /* PHK ??? */
@ -171,9 +163,9 @@ ppsclose(dev_t dev, int flags, int fmt, struct proc *p)
}
static void
ppsintr(int unit)
ppsintr(struct ppb_device *ppd)
{
struct pps_data *sc = softc[unit];
struct pps_data *sc = ppd->drv1;
struct timecounter *tc;
unsigned count;
@ -191,7 +183,7 @@ ppsintr(int unit)
static int
ppsioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct pps_data *sc = softc[minor(dev)];
struct pps_data *sc = dev->si_drv1;
return (pps_ioctl(cmd, data, &sc->pps));
}