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Make the event creation work

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- Create the /dev/usb event queue device node.
- Add usbread to the cdevsw.
- Also hide the many minor() behind a USBUNIT macro.
This commit is contained in:
Nick Hibma 1999-11-19 13:13:28 +00:00
parent 3e08b029e3
commit 6c20390aa7
1 changed files with 27 additions and 17 deletions
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32
sys/dev/usb/usb.c
View File

@ -68,7 +68,8 @@
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#define USB_DEV_MINOR 255
#define USBUNIT(d) (minor(d)) /* usb_discover device nodes, kthread */
#define USB_DEV_MINOR 255 /* event queue device */
#if defined(__FreeBSD__)
MALLOC_DEFINE(M_USB, "USB", "USB");
@ -126,7 +127,7 @@ int usbpoll __P((dev_t, int, struct proc *));
struct cdevsw usb_cdevsw = {
/* open */ usbopen,
/* close */ usbclose,
/* read */ noread,
/* read */ usbread,
/* write */ nowrite,
/* ioctl */ usbioctl,
/* poll */ usbpoll,
@ -142,8 +143,10 @@ struct cdevsw usb_cdevsw = {
#endif
static usbd_status usb_discover __P((struct usb_softc *));
#if defined(__NetBSD__) || defined(__OpenBSD__)
static void usb_create_event_thread __P((void *));
static void usb_event_thread __P((void *));
#endif
#define USB_MAX_EVENTS 50
struct usb_event_q {
@ -182,6 +185,7 @@ USB_ATTACH(usb)
#endif
usbd_device_handle dev;
usbd_status err;
static int global_init_done = 0;
#if defined(__NetBSD__) || defined(__OpenBSD__)
printf("\n");
@ -229,6 +233,11 @@ USB_ATTACH(usb)
#if defined(__FreeBSD__)
make_dev(&usb_cdevsw, device_get_unit(self), UID_ROOT, GID_OPERATOR,
0644, "usb%d", device_get_unit(self));
if (!global_init_done) {
make_dev(&usb_cdevsw, USB_DEV_MINOR, UID_ROOT, GID_OPERATOR,
0644, "usb");
global_init_done = 1;
}
#endif
USB_ATTACH_SUCCESS_RETURN;
@ -294,7 +303,7 @@ usbopen(dev, flag, mode, p)
int flag, mode;
struct proc *p;
{
int unit = minor(dev);
int unit = USBUNIT(dev);
struct usb_softc *sc;
if (unit == USB_DEV_MINOR) {
@ -303,8 +312,7 @@ usbopen(dev, flag, mode, p)
usb_dev_open = 1;
usb_async_proc = 0;
return (0);
}
} else {
USB_GET_SC_OPEN(usb, unit, sc);
if (sc->sc_dying)
@ -312,6 +320,7 @@ usbopen(dev, flag, mode, p)
return (0);
}
}
int
usbread(dev, uio, flag)
@ -320,10 +329,11 @@ usbread(dev, uio, flag)
int flag;
{
struct usb_event ue;
int unit = USBUNIT(dev);
int s, error, n;
if (minor(dev) != USB_DEV_MINOR)
return (ENXIO);
if (unit != USB_DEV_MINOR)
return (ENODEV);
if (uio->uio_resid != sizeof(struct usb_event))
return (EINVAL);
@ -355,7 +365,7 @@ usbclose(dev, flag, mode, p)
int flag, mode;
struct proc *p;
{
int unit = minor(dev);
int unit = USBUNIT(dev);
if (unit == USB_DEV_MINOR) {
usb_async_proc = 0;
@ -374,7 +384,7 @@ usbioctl(devt, cmd, data, flag, p)
struct proc *p;
{
struct usb_softc *sc;
int unit = minor(devt);
int unit = USBUNIT(devt);
if (unit == USB_DEV_MINOR) {
switch (cmd) {
@ -504,8 +514,9 @@ usbpoll(dev, events, p)
struct proc *p;
{
int revents, mask, s;
int unit = USBUNIT(dev);
if (minor(dev) == USB_DEV_MINOR) {
if (unit == USB_DEV_MINOR) {
revents = 0;
mask = POLLIN | POLLRDNORM;
@ -521,7 +532,6 @@ usbpoll(dev, events, p)
#if defined(__FreeBSD__)
/* This part should be deleted when kthreads is available */
struct usb_softc *sc;
int unit = minor(dev);
USB_GET_SC(usb, unit, sc);