Author: hselasky
Date: Tue Feb 5 14:44:25 2013
New Revision: 246363
URL: http://svnweb.freebsd.org/changeset/base/246363
Log:
Add defines to more easily allow a single threaded version of the FreeBSD
USB stack. This is useful for non-kernel purposes, like the loader.
Modified:
head/sys/boot/usb/bsd_global.h
head/sys/boot/usb/bsd_kernel.c
head/sys/boot/usb/bsd_kernel.h
head/sys/dev/usb/controller/usb_controller.c
head/sys/dev/usb/controller/xhci.c
head/sys/dev/usb/controller/xhci.h
head/sys/dev/usb/usb_bus.h
head/sys/dev/usb/usb_device.c
head/sys/dev/usb/usb_freebsd.h
head/sys/dev/usb/usb_freebsd_loader.h
head/sys/dev/usb/usb_hub.c
head/sys/dev/usb/usb_transfer.c
Modified: head/sys/boot/usb/bsd_global.h
==============================================================================
--- head/sys/boot/usb/bsd_global.h Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/boot/usb/bsd_global.h Tue Feb 5 14:44:25 2013
(r246363)
@@ -60,4 +60,6 @@
#include <dev/usb/quirk/usb_quirk.h>
#include <dev/usb/template/usb_template.h>
+extern struct usb_process usb_process[USB_PROC_MAX];
+
#endif /* _BSD_GLOBAL_H_ */
Modified: head/sys/boot/usb/bsd_kernel.c
==============================================================================
--- head/sys/boot/usb/bsd_kernel.c Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/boot/usb/bsd_kernel.c Tue Feb 5 14:44:25 2013
(r246363)
@@ -26,7 +26,8 @@
#include <bsd_global.h>
-static struct usb_process usb_process[USB_PROC_MAX];
+struct usb_process usb_process[USB_PROC_MAX];
+
static device_t usb_pci_root;
/*------------------------------------------------------------------------*
@@ -977,41 +978,6 @@ repeat:
return (worked);
}
-int
-usb_proc_create(struct usb_process *up, struct mtx *p_mtx,
- const char *pmesg, uint8_t prio)
-{
-#define USB_PROC_OFFSET(a,b) \
- ((int)(((long)&((struct usb_bus *)0)->a) - \
- ((long)&((struct usb_bus *)0)->b)))
-
- /* figure out which process we are creating */
- switch ((int)((long)up - (long)p_mtx)) {
- case USB_PROC_OFFSET(giant_callback_proc, bus_mtx):
- up->up_ptr = (void *)(usb_process + 2);
- break;
- case USB_PROC_OFFSET(non_giant_callback_proc, bus_mtx):
- up->up_ptr = (void *)(usb_process + 2);
- break;
- case USB_PROC_OFFSET(explore_proc, bus_mtx):
- up->up_ptr = (void *)(usb_process + 0);
- break;
- case USB_PROC_OFFSET(control_xfer_proc, bus_mtx):
- up->up_ptr = (void *)(usb_process + 1);
- break;
- default:
- up->up_ptr = (void *)(usb_process + 1);
- break;
- }
- return (0); /* success */
-}
-
-void
-usb_proc_free(struct usb_process *up)
-{
- /* NOP */
-}
-
void *
usb_proc_msignal(struct usb_process *up, void *_pm0, void *_pm1)
{
@@ -1021,10 +987,6 @@ usb_proc_msignal(struct usb_process *up,
usb_size_t d;
uint8_t t;
- /* find the correct parent */
- while (up->up_ptr != NULL)
- up = (struct usb_process *)up->up_ptr;
-
t = 0;
if (pm0->pm_qentry.tqe_prev) {
@@ -1104,10 +1066,6 @@ usb_proc_mwait(struct usb_process *up, v
struct usb_proc_msg *pm0 = _pm0;
struct usb_proc_msg *pm1 = _pm1;
- /* find the correct parent */
- while (up->up_ptr != NULL)
- up = (struct usb_process *)up->up_ptr;
-
/* Just remove the messages from the queue. */
if (pm0->pm_qentry.tqe_prev) {
TAILQ_REMOVE(&up->up_qhead, pm0, pm_qentry);
Modified: head/sys/boot/usb/bsd_kernel.h
==============================================================================
--- head/sys/boot/usb/bsd_kernel.h Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/boot/usb/bsd_kernel.h Tue Feb 5 14:44:25 2013
(r246363)
@@ -40,6 +40,10 @@
#define M_USB 0
#define M_USBDEV 0
#define USB_PROC_MAX 3
+#define USB_BUS_GIANT_PROC(bus) (usb_process + 2)
+#define USB_BUS_NON_GIANT_PROC(bus) (usb_process + 2)
+#define USB_BUS_EXPLORE_PROC(bus) (usb_process + 0)
+#define USB_BUS_CONTROL_XFER_PROC(bus) (usb_process + 1)
#define SYSCTL_DECL(...)
#define SYSCTL_NODE(name,...) struct { } name __used
#define SYSCTL_INT(...)
Modified: head/sys/dev/usb/controller/usb_controller.c
==============================================================================
--- head/sys/dev/usb/controller/usb_controller.c Tue Feb 5 14:39:37
2013 (r246362)
+++ head/sys/dev/usb/controller/usb_controller.c Tue Feb 5 14:44:25
2013 (r246363)
@@ -214,27 +214,29 @@ usb_detach(device_t dev)
USB_BUS_LOCK(bus);
/* Queue detach job */
- usb_proc_msignal(&bus->explore_proc,
+ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->detach_msg[0], &bus->detach_msg[1]);
/* Wait for detach to complete */
- usb_proc_mwait(&bus->explore_proc,
+ usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus),
&bus->detach_msg[0], &bus->detach_msg[1]);
USB_BUS_UNLOCK(bus);
+#if USB_HAVE_PER_BUS_PROCESS
/* Get rid of USB callback processes */
- usb_proc_free(&bus->giant_callback_proc);
- usb_proc_free(&bus->non_giant_callback_proc);
+ usb_proc_free(USB_BUS_GIANT_PROC(bus));
+ usb_proc_free(USB_BUS_NON_GIANT_PROC(bus));
/* Get rid of USB explore process */
- usb_proc_free(&bus->explore_proc);
+ usb_proc_free(USB_BUS_EXPLORE_PROC(bus));
/* Get rid of control transfer process */
- usb_proc_free(&bus->control_xfer_proc);
+ usb_proc_free(USB_BUS_CONTROL_XFER_PROC(bus));
+#endif
#if USB_HAVE_PF
usbpf_detach(bus);
@@ -258,11 +260,11 @@ usb_suspend(device_t dev)
}
USB_BUS_LOCK(bus);
- usb_proc_msignal(&bus->explore_proc,
+ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->suspend_msg[0], &bus->suspend_msg[1]);
if (usb_no_suspend_wait == 0) {
/* wait for suspend callback to be executed */
- usb_proc_mwait(&bus->explore_proc,
+ usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus),
&bus->suspend_msg[0], &bus->suspend_msg[1]);
}
USB_BUS_UNLOCK(bus);
@@ -286,7 +288,7 @@ usb_resume(device_t dev)
}
USB_BUS_LOCK(bus);
- usb_proc_msignal(&bus->explore_proc,
+ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->resume_msg[0], &bus->resume_msg[1]);
USB_BUS_UNLOCK(bus);
@@ -311,11 +313,11 @@ usb_shutdown(device_t dev)
device_printf(bus->bdev, "Controller shutdown\n");
USB_BUS_LOCK(bus);
- usb_proc_msignal(&bus->explore_proc,
+ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->shutdown_msg[0], &bus->shutdown_msg[1]);
if (usb_no_shutdown_wait == 0) {
/* wait for shutdown callback to be executed */
- usb_proc_mwait(&bus->explore_proc,
+ usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus),
&bus->shutdown_msg[0], &bus->shutdown_msg[1]);
}
USB_BUS_UNLOCK(bus);
@@ -358,9 +360,9 @@ usb_bus_explore(struct usb_proc_msg *pm)
* The following three lines of code are only here to
* recover from DDB:
*/
- usb_proc_rewakeup(&bus->control_xfer_proc);
- usb_proc_rewakeup(&bus->giant_callback_proc);
- usb_proc_rewakeup(&bus->non_giant_callback_proc);
+ usb_proc_rewakeup(USB_BUS_CONTROL_XFER_PROC(bus));
+ usb_proc_rewakeup(USB_BUS_GIANT_PROC(bus));
+ usb_proc_rewakeup(USB_BUS_NON_GIANT_PROC(bus));
#endif
USB_BUS_UNLOCK(bus);
@@ -585,7 +587,7 @@ usb_power_wdog(void *arg)
* The following line of code is only here to recover from
* DDB:
*/
- usb_proc_rewakeup(&bus->explore_proc); /* recover from DDB */
+ usb_proc_rewakeup(USB_BUS_EXPLORE_PROC(bus)); /* recover from DDB */
#endif
#if USB_HAVE_POWERD
@@ -708,8 +710,6 @@ usb_bus_attach(struct usb_proc_msg *pm)
static void
usb_attach_sub(device_t dev, struct usb_bus *bus)
{
- const char *pname = device_get_nameunit(dev);
-
mtx_lock(&Giant);
if (usb_devclass_ptr == NULL)
usb_devclass_ptr = devclass_find("usbus");
@@ -749,28 +749,31 @@ usb_attach_sub(device_t dev, struct usb_
bus->shutdown_msg[1].hdr.pm_callback = &usb_bus_shutdown;
bus->shutdown_msg[1].bus = bus;
+#if USB_HAVE_PER_BUS_PROCESS
/* Create USB explore and callback processes */
- if (usb_proc_create(&bus->giant_callback_proc,
- &bus->bus_mtx, pname, USB_PRI_MED)) {
+ if (usb_proc_create(USB_BUS_GIANT_PROC(bus),
+ &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB Giant "
"callback process failed.\n");
- } else if (usb_proc_create(&bus->non_giant_callback_proc,
- &bus->bus_mtx, pname, USB_PRI_HIGH)) {
+ } else if (usb_proc_create(USB_BUS_NON_GIANT_PROC(bus),
+ &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_HIGH)) {
device_printf(dev, "WARNING: Creation of USB non-Giant "
"callback process failed.\n");
- } else if (usb_proc_create(&bus->explore_proc,
- &bus->bus_mtx, pname, USB_PRI_MED)) {
+ } else if (usb_proc_create(USB_BUS_EXPLORE_PROC(bus),
+ &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB explore "
"process failed.\n");
- } else if (usb_proc_create(&bus->control_xfer_proc,
- &bus->bus_mtx, pname, USB_PRI_MED)) {
+ } else if (usb_proc_create(USB_BUS_CONTROL_XFER_PROC(bus),
+ &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB control transfer "
"process failed.\n");
- } else {
+ } else
+#endif
+ {
/* Get final attach going */
USB_BUS_LOCK(bus);
- usb_proc_msignal(&bus->explore_proc,
+ usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->attach_msg[0], &bus->attach_msg[1]);
USB_BUS_UNLOCK(bus);
@@ -778,7 +781,6 @@ usb_attach_sub(device_t dev, struct usb_
usb_needs_explore(bus, 1);
}
}
-
SYSUNINIT(usb_bus_unload, SI_SUB_KLD, SI_ORDER_ANY, usb_bus_unload, NULL);
/*------------------------------------------------------------------------*
Modified: head/sys/dev/usb/controller/xhci.c
==============================================================================
--- head/sys/dev/usb/controller/xhci.c Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/controller/xhci.c Tue Feb 5 14:44:25 2013
(r246363)
@@ -547,19 +547,12 @@ xhci_init(struct xhci_softc *sc, device_
sc->sc_config_msg[1].hdr.pm_callback = &xhci_configure_msg;
sc->sc_config_msg[1].bus = &sc->sc_bus;
- if (usb_proc_create(&sc->sc_config_proc,
- &sc->sc_bus.bus_mtx, device_get_nameunit(self), USB_PRI_MED)) {
- printf("WARNING: Creation of XHCI configure "
- "callback process failed.\n");
- }
return (0);
}
void
xhci_uninit(struct xhci_softc *sc)
{
- usb_proc_free(&sc->sc_config_proc);
-
usb_bus_mem_free_all(&sc->sc_bus, &xhci_iterate_hw_softc);
cv_destroy(&sc->sc_cmd_cv);
@@ -2684,7 +2677,7 @@ xhci_transfer_insert(struct usb_xfer *xf
DPRINTFN(8, "Not running\n");
/* start configuration */
- (void)usb_proc_msignal(&sc->sc_config_proc,
+ (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
&sc->sc_config_msg[0], &sc->sc_config_msg[1]);
return (0);
}
@@ -3652,7 +3645,7 @@ xhci_start_dma_delay(struct usb_xfer *xf
/* put transfer on interrupt queue (again) */
usbd_transfer_enqueue(&sc->sc_bus.intr_q, xfer);
- (void)usb_proc_msignal(&sc->sc_config_proc,
+ (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
&sc->sc_config_msg[0], &sc->sc_config_msg[1]);
}
Modified: head/sys/dev/usb/controller/xhci.h
==============================================================================
--- head/sys/dev/usb/controller/xhci.h Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/controller/xhci.h Tue Feb 5 14:44:25 2013
(r246363)
@@ -434,8 +434,7 @@ struct xhci_softc {
struct xhci_hw_softc sc_hw;
/* base device */
struct usb_bus sc_bus;
- /* configure process */
- struct usb_process sc_config_proc;
+ /* configure message */
struct usb_bus_msg sc_config_msg[2];
union xhci_hub_desc sc_hub_desc;
Modified: head/sys/dev/usb/usb_bus.h
==============================================================================
--- head/sys/dev/usb/usb_bus.h Tue Feb 5 14:39:37 2013 (r246362)
+++ head/sys/dev/usb/usb_bus.h Tue Feb 5 14:44:25 2013 (r246363)
@@ -54,6 +54,13 @@ struct usb_bus {
#if USB_HAVE_ROOT_MOUNT_HOLD
struct root_hold_token *bus_roothold;
#endif
+
+#if USB_HAVE_PER_BUS_PROCESS
+#define USB_BUS_GIANT_PROC(bus) (&(bus)->giant_callback_proc)
+#define USB_BUS_NON_GIANT_PROC(bus) (&(bus)->non_giant_callback_proc)
+#define USB_BUS_EXPLORE_PROC(bus) (&(bus)->explore_proc)
+#define USB_BUS_CONTROL_XFER_PROC(bus) (&(bus)->control_xfer_proc)
+
/*
* There are two callback processes. One for Giant locked
* callbacks. One for non-Giant locked callbacks. This should
@@ -67,6 +74,7 @@ struct usb_bus {
/* Control request process */
struct usb_process control_xfer_proc;
+#endif
struct usb_bus_msg explore_msg[2];
struct usb_bus_msg detach_msg[2];
Modified: head/sys/dev/usb/usb_device.c
==============================================================================
--- head/sys/dev/usb/usb_device.c Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/usb_device.c Tue Feb 5 14:44:25 2013
(r246363)
@@ -2128,7 +2128,7 @@ usb_free_device(struct usb_device *udev,
* anywhere:
*/
USB_BUS_LOCK(udev->bus);
- usb_proc_mwait(&udev->bus->non_giant_callback_proc,
+ usb_proc_mwait(USB_BUS_NON_GIANT_PROC(udev->bus),
&udev->cs_msg[0], &udev->cs_msg[1]);
USB_BUS_UNLOCK(udev->bus);
Modified: head/sys/dev/usb/usb_freebsd.h
==============================================================================
--- head/sys/dev/usb/usb_freebsd.h Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/usb_freebsd.h Tue Feb 5 14:44:25 2013
(r246363)
@@ -44,6 +44,7 @@
#define USB_HAVE_PF 1
#define USB_HAVE_ROOT_MOUNT_HOLD 1
#define USB_HAVE_ID_SECTION 1
+#define USB_HAVE_PER_BUS_PROCESS 1
#define USB_TD_GET_PROC(td) (td)->td_proc
#define USB_PROC_GET_GID(td) (td)->p_pgid
Modified: head/sys/dev/usb/usb_freebsd_loader.h
==============================================================================
--- head/sys/dev/usb/usb_freebsd_loader.h Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/usb_freebsd_loader.h Tue Feb 5 14:44:25 2013
(r246363)
@@ -44,6 +44,7 @@
#define USB_HAVE_PF 0
#define USB_HAVE_ROOT_MOUNT_HOLD 0
#define USB_HAVE_ID_SECTION 0
+#define USB_HAVE_PER_BUS_PROCESS 0
#define USB_TD_GET_PROC(td) (td)->td_proc
#define USB_PROC_GET_GID(td) (td)->p_pgid
Modified: head/sys/dev/usb/usb_hub.c
==============================================================================
--- head/sys/dev/usb/usb_hub.c Tue Feb 5 14:39:37 2013 (r246362)
+++ head/sys/dev/usb/usb_hub.c Tue Feb 5 14:44:25 2013 (r246363)
@@ -1917,7 +1917,7 @@ usb_needs_explore(struct usb_bus *bus, u
if (do_probe) {
bus->do_probe = 1;
}
- if (usb_proc_msignal(&bus->explore_proc,
+ if (usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->explore_msg[0], &bus->explore_msg[1])) {
/* ignore */
}
Modified: head/sys/dev/usb/usb_transfer.c
==============================================================================
--- head/sys/dev/usb/usb_transfer.c Tue Feb 5 14:39:37 2013
(r246362)
+++ head/sys/dev/usb/usb_transfer.c Tue Feb 5 14:44:25 2013
(r246363)
@@ -965,14 +965,14 @@ usbd_transfer_setup(struct usb_device *u
* deadlock!
*/
if (setup_start == usb_control_ep_cfg)
- info->done_p =
- &udev->bus->control_xfer_proc;
+ info->done_p =
+ USB_BUS_CONTROL_XFER_PROC(udev->bus);
else if (xfer_mtx == &Giant)
- info->done_p =
- &udev->bus->giant_callback_proc;
+ info->done_p =
+ USB_BUS_GIANT_PROC(udev->bus);
else
- info->done_p =
- &udev->bus->non_giant_callback_proc;
+ info->done_p =
+ USB_BUS_NON_GIANT_PROC(udev->bus);
}
/* reset sizes */
@@ -2614,7 +2614,7 @@ usbd_pipe_start(struct usb_xfer_queue *p
} else if (udev->ctrl_xfer[1]) {
info = udev->ctrl_xfer[1]->xroot;
usb_proc_msignal(
- &info->bus->non_giant_callback_proc,
+ USB_BUS_NON_GIANT_PROC(info->bus),
&udev->cs_msg[0], &udev->cs_msg[1]);
} else {
/* should not happen */
@@ -3216,10 +3216,10 @@ usbd_transfer_poll(struct usb_xfer **ppx
}
/* Make sure cv_signal() and cv_broadcast() is not called */
- udev->bus->control_xfer_proc.up_msleep = 0;
- udev->bus->explore_proc.up_msleep = 0;
- udev->bus->giant_callback_proc.up_msleep = 0;
- udev->bus->non_giant_callback_proc.up_msleep = 0;
+ USB_BUS_CONTROL_XFER_PROC(udev->bus)->up_msleep = 0;
+ USB_BUS_EXPLORE_PROC(udev->bus)->up_msleep = 0;
+ USB_BUS_GIANT_PROC(udev->bus)->up_msleep = 0;
+ USB_BUS_NON_GIANT_PROC(udev->bus)->up_msleep = 0;
/* poll USB hardware */
(udev->bus->methods->xfer_poll) (udev->bus);
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