Date: Thu, 18 Aug 2011 08:25:27 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r224960 - stable/8/sys/dev/usb Message-ID: <201108180825.p7I8PRv6045281@svn.freebsd.org>
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Author: hselasky Date: Thu Aug 18 08:25:27 2011 New Revision: 224960 URL: http://svn.freebsd.org/changeset/base/224960 Log: MFC r224777: Use synchronous device destruction instead of asynchronous. Modified: stable/8/sys/dev/usb/usb_dev.c stable/8/sys/dev/usb/usb_device.c stable/8/sys/dev/usb/usb_device.h stable/8/sys/dev/usb/usbdi.h Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/dev/usb/usb_dev.c ============================================================================== --- stable/8/sys/dev/usb/usb_dev.c Thu Aug 18 07:34:11 2011 (r224959) +++ stable/8/sys/dev/usb/usb_dev.c Thu Aug 18 08:25:27 2011 (r224960) @@ -1648,7 +1648,6 @@ usb_fifo_attach(struct usb_device *udev, struct usb_fifo *f_rx; char devname[32]; uint8_t n; - struct usb_fs_privdata* pd; f_sc->fp[USB_FIFO_TX] = NULL; f_sc->fp[USB_FIFO_RX] = NULL; @@ -1746,22 +1745,10 @@ usb_fifo_attach(struct usb_device *udev, usb_alloc_symlink(devname); } - /* - * Initialize device private data - this is used to find the - * actual USB device itself. - */ - pd = malloc(sizeof(struct usb_fs_privdata), M_USBDEV, M_WAITOK | M_ZERO); - pd->bus_index = device_get_unit(udev->bus->bdev); - pd->dev_index = udev->device_index; - pd->ep_addr = -1; /* not an endpoint */ - pd->fifo_index = f_tx->fifo_index & f_rx->fifo_index; - pd->mode = FREAD|FWRITE; - - /* Now, create the device itself */ - f_sc->dev = make_dev(&usb_devsw, 0, uid, gid, mode, - "%s", devname); - /* XXX setting si_drv1 and creating the device is not atomic! */ - f_sc->dev->si_drv1 = pd; + /* Create the device */ + f_sc->dev = usb_make_dev(udev, devname, -1, + f_tx->fifo_index & f_rx->fifo_index, + FREAD|FWRITE, uid, gid, mode); } DPRINTFN(2, "attached %p/%p\n", f_tx, f_rx); @@ -1814,12 +1801,6 @@ usb_fifo_free_buffer(struct usb_fifo *f) bzero(&f->used_q, sizeof(f->used_q)); } -static void -usb_fifo_cleanup(void* ptr) -{ - free(ptr, M_USBDEV); -} - void usb_fifo_detach(struct usb_fifo_sc *f_sc) { @@ -1832,11 +1813,9 @@ usb_fifo_detach(struct usb_fifo_sc *f_sc f_sc->fp[USB_FIFO_TX] = NULL; f_sc->fp[USB_FIFO_RX] = NULL; - if (f_sc->dev != NULL) { - destroy_dev_sched_cb(f_sc->dev, - usb_fifo_cleanup, f_sc->dev->si_drv1); - f_sc->dev = NULL; - } + usb_destroy_dev(f_sc->dev); + + f_sc->dev = NULL; DPRINTFN(2, "detached %p\n", f_sc); } Modified: stable/8/sys/dev/usb/usb_device.c ============================================================================== --- stable/8/sys/dev/usb/usb_device.c Thu Aug 18 07:34:11 2011 (r224959) +++ stable/8/sys/dev/usb/usb_device.c Thu Aug 18 08:25:27 2011 (r224960) @@ -102,10 +102,8 @@ static void usb_notify_addq(const char * #endif #if USB_HAVE_UGEN static void usb_fifo_free_wrap(struct usb_device *, uint8_t, uint8_t); -static struct cdev *usb_make_dev(struct usb_device *, int, int); static void usb_cdev_create(struct usb_device *); static void usb_cdev_free(struct usb_device *); -static void usb_cdev_cleanup(void *); #endif /* This variable is global to allow easy access to it: */ @@ -1626,10 +1624,12 @@ usb_alloc_device(device_t parent_dev, st LIST_INIT(&udev->pd_list); /* Create the control endpoint device */ - udev->ctrl_dev = usb_make_dev(udev, 0, FREAD|FWRITE); + udev->ctrl_dev = usb_make_dev(udev, NULL, 0, 0, + FREAD|FWRITE, UID_ROOT, GID_OPERATOR, 0600); /* Create a link from /dev/ugenX.X to the default endpoint */ - make_dev_alias(udev->ctrl_dev, "%s", udev->ugen_name); + if (udev->ctrl_dev != NULL) + make_dev_alias(udev->ctrl_dev->cdev, "%s", udev->ugen_name); #endif /* Initialise device */ if (bus->methods->device_init != NULL) { @@ -1884,11 +1884,12 @@ done: } #if USB_HAVE_UGEN -static struct cdev * -usb_make_dev(struct usb_device *udev, int ep, int mode) +struct usb_fs_privdata * +usb_make_dev(struct usb_device *udev, const char *devname, int ep, + int fi, int rwmode, uid_t uid, gid_t gid, int mode) { struct usb_fs_privdata* pd; - char devname[20]; + char buffer[32]; /* Store information to locate ourselves again later */ pd = malloc(sizeof(struct usb_fs_privdata), M_USBDEV, @@ -1896,16 +1897,39 @@ usb_make_dev(struct usb_device *udev, in pd->bus_index = device_get_unit(udev->bus->bdev); pd->dev_index = udev->device_index; pd->ep_addr = ep; - pd->mode = mode; + pd->fifo_index = fi; + pd->mode = rwmode; /* Now, create the device itself */ - snprintf(devname, sizeof(devname), "%u.%u.%u", - pd->bus_index, pd->dev_index, pd->ep_addr); - pd->cdev = make_dev(&usb_devsw, 0, UID_ROOT, - GID_OPERATOR, 0600, USB_DEVICE_DIR "/%s", devname); + if (devname == NULL) { + devname = buffer; + snprintf(buffer, sizeof(buffer), USB_DEVICE_DIR "/%u.%u.%u", + pd->bus_index, pd->dev_index, pd->ep_addr); + } + + pd->cdev = make_dev(&usb_devsw, 0, uid, gid, mode, "%s", devname); + + if (pd->cdev == NULL) { + DPRINTFN(0, "Failed to create device %s\n", devname); + free(pd, M_USBDEV); + return (NULL); + } + + /* XXX setting si_drv1 and creating the device is not atomic! */ pd->cdev->si_drv1 = pd; - return (pd->cdev); + return (pd); +} + +void +usb_destroy_dev(struct usb_fs_privdata *pd) +{ + if (pd == NULL) + return; + + destroy_dev(pd->cdev); + + free(pd, M_USBDEV); } static void @@ -1915,7 +1939,6 @@ usb_cdev_create(struct usb_device *udev) struct usb_endpoint_descriptor *ed; struct usb_descriptor *desc; struct usb_fs_privdata* pd; - struct cdev *dev; int inmode, outmode, inmask, outmask, mode; uint8_t ep; @@ -1957,14 +1980,16 @@ usb_cdev_create(struct usb_device *udev) /* Create all available endpoints except EP0 */ for (ep = 1; ep < 16; ep++) { - mode = inmask & (1 << ep) ? inmode : 0; - mode |= outmask & (1 << ep) ? outmode : 0; + mode = (inmask & (1 << ep)) ? inmode : 0; + mode |= (outmask & (1 << ep)) ? outmode : 0; if (mode == 0) continue; /* no IN or OUT endpoint */ - dev = usb_make_dev(udev, ep, mode); - pd = dev->si_drv1; - LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next); + pd = usb_make_dev(udev, NULL, ep, 0, + mode, UID_ROOT, GID_OPERATOR, 0600); + + if (pd != NULL) + LIST_INSERT_HEAD(&udev->pd_list, pd, pd_next); } } @@ -1972,25 +1997,16 @@ static void usb_cdev_free(struct usb_device *udev) { struct usb_fs_privdata* pd; - struct cdev* pcdev; DPRINTFN(2, "Freeing device nodes\n"); while ((pd = LIST_FIRST(&udev->pd_list)) != NULL) { KASSERT(pd->cdev->si_drv1 == pd, ("privdata corrupt")); - pcdev = pd->cdev; - pd->cdev = NULL; LIST_REMOVE(pd, pd_next); - if (pcdev != NULL) - destroy_dev_sched_cb(pcdev, usb_cdev_cleanup, pd); - } -} -static void -usb_cdev_cleanup(void* arg) -{ - free(arg, M_USBDEV); + usb_destroy_dev(pd); + } } #endif @@ -2046,8 +2062,7 @@ usb_free_device(struct usb_device *udev, } mtx_unlock(&usb_ref_lock); - destroy_dev_sched_cb(udev->ctrl_dev, usb_cdev_cleanup, - udev->ctrl_dev->si_drv1); + usb_destroy_dev(udev->ctrl_dev); #endif if (udev->flags.usb_mode == USB_MODE_DEVICE) { Modified: stable/8/sys/dev/usb/usb_device.h ============================================================================== --- stable/8/sys/dev/usb/usb_device.h Thu Aug 18 07:34:11 2011 (r224959) +++ stable/8/sys/dev/usb/usb_device.h Thu Aug 18 08:25:27 2011 (r224960) @@ -29,6 +29,7 @@ struct usb_symlink; /* UGEN */ struct usb_device; /* linux compat */ +struct usb_fs_privdata; #define USB_CTRL_XFER_MAX 2 @@ -135,7 +136,7 @@ struct usb_device { #if USB_HAVE_UGEN struct usb_fifo *fifo[USB_FIFO_MAX]; struct usb_symlink *ugen_symlink; /* our generic symlink */ - struct cdev *ctrl_dev; /* Control Endpoint 0 device node */ + struct usb_fs_privdata *ctrl_dev; /* Control Endpoint 0 device node */ LIST_HEAD(,usb_fs_privdata) pd_list; char ugen_name[20]; /* name of ugenX.X device */ #endif @@ -202,6 +203,11 @@ struct usb_device *usb_alloc_device(devi struct usb_device *parent_hub, uint8_t depth, uint8_t port_index, uint8_t port_no, enum usb_dev_speed speed, enum usb_hc_mode mode); +#if USB_HAVE_UGEN +struct usb_fs_privdata *usb_make_dev(struct usb_device *, const char *, + int, int, int, uid_t, gid_t, int); +void usb_destroy_dev(struct usb_fs_privdata *); +#endif usb_error_t usb_probe_and_attach(struct usb_device *udev, uint8_t iface_index); void usb_detach_device(struct usb_device *, uint8_t, uint8_t); Modified: stable/8/sys/dev/usb/usbdi.h ============================================================================== --- stable/8/sys/dev/usb/usbdi.h Thu Aug 18 07:34:11 2011 (r224959) +++ stable/8/sys/dev/usb/usbdi.h Thu Aug 18 08:25:27 2011 (r224960) @@ -37,6 +37,7 @@ struct usb_page_search; struct usb_process; struct usb_proc_msg; struct usb_mbuf; +struct usb_fs_privdata; struct mbuf; typedef enum { /* keep in sync with usb_errstr_table */ @@ -449,7 +450,7 @@ struct usb_fifo_methods { struct usb_fifo_sc { struct usb_fifo *fp[2]; - struct cdev* dev; + struct usb_fs_privdata *dev; }; const char *usbd_errstr(usb_error_t error);
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