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authorthompsa <thompsa@FreeBSD.org>2009-02-23 18:31:00 +0000
committerthompsa <thompsa@FreeBSD.org>2009-02-23 18:31:00 +0000
commit111a707d99983acd73c4212036000aa3e88425b6 (patch)
tree691e9b9009214e6138d3913e4c022c897e386667 /sys/dev/usb2/controller/usb2_controller.c
parent124e83aa64b26f6b00736a45c3e25dfda8c7060e (diff)
downloadFreeBSD-src-111a707d99983acd73c4212036000aa3e88425b6.zip
FreeBSD-src-111a707d99983acd73c4212036000aa3e88425b6.tar.gz
Move the new USB stack into its new home.
Diffstat (limited to 'sys/dev/usb2/controller/usb2_controller.c')
-rw-r--r--sys/dev/usb2/controller/usb2_controller.c623
1 files changed, 0 insertions, 623 deletions
diff --git a/sys/dev/usb2/controller/usb2_controller.c b/sys/dev/usb2/controller/usb2_controller.c
deleted file mode 100644
index cd334ab..0000000
--- a/sys/dev/usb2/controller/usb2_controller.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/* $FreeBSD$ */
-/*-
- * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <dev/usb2/include/usb2_mfunc.h>
-#include <dev/usb2/include/usb2_defs.h>
-#include <dev/usb2/include/usb2_error.h>
-#include <dev/usb2/include/usb2_standard.h>
-
-#define USB_DEBUG_VAR usb2_ctrl_debug
-
-#include <dev/usb2/core/usb2_core.h>
-#include <dev/usb2/core/usb2_debug.h>
-#include <dev/usb2/core/usb2_process.h>
-#include <dev/usb2/core/usb2_busdma.h>
-#include <dev/usb2/core/usb2_dynamic.h>
-#include <dev/usb2/core/usb2_device.h>
-#include <dev/usb2/core/usb2_hub.h>
-
-#include <dev/usb2/controller/usb2_controller.h>
-#include <dev/usb2/controller/usb2_bus.h>
-
-/* function prototypes */
-
-static device_probe_t usb2_probe;
-static device_attach_t usb2_attach;
-static device_detach_t usb2_detach;
-
-static void usb2_attach_sub(device_t, struct usb2_bus *);
-static void usb2_post_init(void *);
-static void usb2_bus_mem_flush_all_cb(struct usb2_bus *,
- struct usb2_page_cache *, struct usb2_page *, uint32_t,
- uint32_t);
-static void usb2_bus_mem_alloc_all_cb(struct usb2_bus *,
- struct usb2_page_cache *, struct usb2_page *, uint32_t,
- uint32_t);
-static void usb2_bus_mem_free_all_cb(struct usb2_bus *,
- struct usb2_page_cache *, struct usb2_page *, uint32_t,
- uint32_t);
-static void usb2_bus_roothub(struct usb2_proc_msg *pm);
-
-/* static variables */
-
-#if USB_DEBUG
-static int usb2_ctrl_debug = 0;
-
-SYSCTL_NODE(_hw_usb2, OID_AUTO, ctrl, CTLFLAG_RW, 0, "USB controller");
-SYSCTL_INT(_hw_usb2_ctrl, OID_AUTO, debug, CTLFLAG_RW, &usb2_ctrl_debug, 0,
- "Debug level");
-#endif
-
-static uint8_t usb2_post_init_called = 0;
-
-static devclass_t usb2_devclass;
-
-static device_method_t usb2_methods[] = {
- DEVMETHOD(device_probe, usb2_probe),
- DEVMETHOD(device_attach, usb2_attach),
- DEVMETHOD(device_detach, usb2_detach),
- DEVMETHOD(device_suspend, bus_generic_suspend),
- DEVMETHOD(device_resume, bus_generic_resume),
- DEVMETHOD(device_shutdown, bus_generic_shutdown),
- {0, 0}
-};
-
-static driver_t usb2_driver = {
- .name = "usbus",
- .methods = usb2_methods,
- .size = 0,
-};
-
-DRIVER_MODULE(usbus, ohci, usb2_driver, usb2_devclass, 0, 0);
-DRIVER_MODULE(usbus, uhci, usb2_driver, usb2_devclass, 0, 0);
-DRIVER_MODULE(usbus, ehci, usb2_driver, usb2_devclass, 0, 0);
-DRIVER_MODULE(usbus, at91_udp, usb2_driver, usb2_devclass, 0, 0);
-DRIVER_MODULE(usbus, uss820, usb2_driver, usb2_devclass, 0, 0);
-
-MODULE_DEPEND(usb2_controller, usb2_core, 1, 1, 1);
-MODULE_VERSION(usb2_controller, 1);
-
-/*------------------------------------------------------------------------*
- * usb2_probe
- *
- * This function is called from "{ehci,ohci,uhci}_pci_attach()".
- *------------------------------------------------------------------------*/
-static int
-usb2_probe(device_t dev)
-{
- DPRINTF("\n");
- return (0);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_attach
- *------------------------------------------------------------------------*/
-static int
-usb2_attach(device_t dev)
-{
- struct usb2_bus *bus = device_get_ivars(dev);
-
- DPRINTF("\n");
-
- if (bus == NULL) {
- DPRINTFN(0, "USB device has no ivars\n");
- return (ENXIO);
- }
-
- /* delay vfs_mountroot until the bus is explored */
- bus->bus_roothold = root_mount_hold(device_get_nameunit(dev));
-
- if (usb2_post_init_called) {
- mtx_lock(&Giant);
- usb2_attach_sub(dev, bus);
- mtx_unlock(&Giant);
- usb2_needs_explore(bus, 1);
- }
- return (0); /* return success */
-}
-
-/*------------------------------------------------------------------------*
- * usb2_detach
- *------------------------------------------------------------------------*/
-static int
-usb2_detach(device_t dev)
-{
- struct usb2_bus *bus = device_get_softc(dev);
-
- DPRINTF("\n");
-
- if (bus == NULL) {
- /* was never setup properly */
- return (0);
- }
- /* Stop power watchdog */
- usb2_callout_drain(&bus->power_wdog);
-
- /* Let the USB explore process detach all devices. */
- if (bus->bus_roothold != NULL) {
- root_mount_rel(bus->bus_roothold);
- bus->bus_roothold = NULL;
- }
-
- USB_BUS_LOCK(bus);
- if (usb2_proc_msignal(&bus->explore_proc,
- &bus->detach_msg[0], &bus->detach_msg[1])) {
- /* ignore */
- }
- /* Wait for detach to complete */
-
- usb2_proc_mwait(&bus->explore_proc,
- &bus->detach_msg[0], &bus->detach_msg[1]);
-
- USB_BUS_UNLOCK(bus);
-
- /* Get rid of USB callback processes */
-
- usb2_proc_free(&bus->giant_callback_proc);
- usb2_proc_free(&bus->non_giant_callback_proc);
-
- /* Get rid of USB roothub process */
-
- usb2_proc_free(&bus->roothub_proc);
-
- /* Get rid of USB explore process */
-
- usb2_proc_free(&bus->explore_proc);
-
- return (0);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_explore
- *
- * This function is used to explore the device tree from the root.
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_explore(struct usb2_proc_msg *pm)
-{
- struct usb2_bus *bus;
- struct usb2_device *udev;
-
- bus = ((struct usb2_bus_msg *)pm)->bus;
- udev = bus->devices[USB_ROOT_HUB_ADDR];
-
- if (udev && udev->hub) {
-
- if (bus->do_probe) {
- bus->do_probe = 0;
- bus->driver_added_refcount++;
- }
- if (bus->driver_added_refcount == 0) {
- /* avoid zero, hence that is memory default */
- bus->driver_added_refcount = 1;
- }
- USB_BUS_UNLOCK(bus);
-
- mtx_lock(&Giant);
-
- /*
- * First update the USB power state!
- */
- usb2_bus_powerd(bus);
-
- /*
- * Explore the Root USB HUB. This call can sleep,
- * exiting Giant, which is actually Giant.
- */
- (udev->hub->explore) (udev);
-
- mtx_unlock(&Giant);
-
- USB_BUS_LOCK(bus);
- }
- if (bus->bus_roothold != NULL) {
- root_mount_rel(bus->bus_roothold);
- bus->bus_roothold = NULL;
- }
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_detach
- *
- * This function is used to detach the device tree from the root.
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_detach(struct usb2_proc_msg *pm)
-{
- struct usb2_bus *bus;
- struct usb2_device *udev;
- device_t dev;
-
- bus = ((struct usb2_bus_msg *)pm)->bus;
- udev = bus->devices[USB_ROOT_HUB_ADDR];
- dev = bus->bdev;
- /* clear the softc */
- device_set_softc(dev, NULL);
- USB_BUS_UNLOCK(bus);
-
- mtx_lock(&Giant);
-
- /* detach children first */
- bus_generic_detach(dev);
-
- /*
- * Free USB Root device, but not any sub-devices, hence they
- * are freed by the caller of this function:
- */
- usb2_detach_device(udev, USB_IFACE_INDEX_ANY, 0);
- usb2_free_device(udev);
-
- mtx_unlock(&Giant);
- USB_BUS_LOCK(bus);
- /* clear bdev variable last */
- bus->bdev = NULL;
-}
-
-static void
-usb2_power_wdog(void *arg)
-{
- struct usb2_bus *bus = arg;
-
- USB_BUS_LOCK_ASSERT(bus, MA_OWNED);
-
- usb2_callout_reset(&bus->power_wdog,
- 4 * hz, usb2_power_wdog, arg);
-
- USB_BUS_UNLOCK(bus);
-
- usb2_bus_power_update(bus);
-
- return;
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_attach
- *
- * This function attaches USB in context of the explore thread.
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_attach(struct usb2_proc_msg *pm)
-{
- struct usb2_bus *bus;
- struct usb2_device *child;
- device_t dev;
- usb2_error_t err;
- uint8_t speed;
-
- bus = ((struct usb2_bus_msg *)pm)->bus;
- dev = bus->bdev;
-
- DPRINTF("\n");
-
- switch (bus->usbrev) {
- case USB_REV_1_0:
- speed = USB_SPEED_FULL;
- device_printf(bus->bdev, "12Mbps Full Speed USB v1.0\n");
- break;
-
- case USB_REV_1_1:
- speed = USB_SPEED_FULL;
- device_printf(bus->bdev, "12Mbps Full Speed USB v1.1\n");
- break;
-
- case USB_REV_2_0:
- speed = USB_SPEED_HIGH;
- device_printf(bus->bdev, "480Mbps High Speed USB v2.0\n");
- break;
-
- case USB_REV_2_5:
- speed = USB_SPEED_VARIABLE;
- device_printf(bus->bdev, "480Mbps Wireless USB v2.5\n");
- break;
-
- default:
- device_printf(bus->bdev, "Unsupported USB revision!\n");
- return;
- }
-
- USB_BUS_UNLOCK(bus);
- mtx_lock(&Giant); /* XXX not required by USB */
-
- /* Allocate the Root USB device */
-
- child = usb2_alloc_device(bus->bdev, bus, NULL, 0, 0, 1,
- speed, USB_MODE_HOST);
- if (child) {
- err = usb2_probe_and_attach(child,
- USB_IFACE_INDEX_ANY);
- if (!err) {
- if (!bus->devices[USB_ROOT_HUB_ADDR]->hub) {
- err = USB_ERR_NO_ROOT_HUB;
- }
- }
- } else {
- err = USB_ERR_NOMEM;
- }
-
- mtx_unlock(&Giant);
- USB_BUS_LOCK(bus);
-
- if (err) {
- device_printf(bus->bdev, "Root HUB problem, error=%s\n",
- usb2_errstr(err));
- }
-
- /* set softc - we are ready */
- device_set_softc(dev, bus);
-
- /* start watchdog - this function will unlock the BUS lock ! */
- usb2_power_wdog(bus);
-
- /* need to return locked */
- USB_BUS_LOCK(bus);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_attach_sub
- *
- * This function creates a thread which runs the USB attach code. It
- * is factored out, hence it can be called at two different places in
- * time. During bootup this function is called from
- * "usb2_post_init". During hot-plug it is called directly from the
- * "usb2_attach()" method.
- *------------------------------------------------------------------------*/
-static void
-usb2_attach_sub(device_t dev, struct usb2_bus *bus)
-{
- const char *pname = device_get_nameunit(dev);
-
- /* Initialise USB process messages */
- bus->explore_msg[0].hdr.pm_callback = &usb2_bus_explore;
- bus->explore_msg[0].bus = bus;
- bus->explore_msg[1].hdr.pm_callback = &usb2_bus_explore;
- bus->explore_msg[1].bus = bus;
-
- bus->detach_msg[0].hdr.pm_callback = &usb2_bus_detach;
- bus->detach_msg[0].bus = bus;
- bus->detach_msg[1].hdr.pm_callback = &usb2_bus_detach;
- bus->detach_msg[1].bus = bus;
-
- bus->attach_msg[0].hdr.pm_callback = &usb2_bus_attach;
- bus->attach_msg[0].bus = bus;
- bus->attach_msg[1].hdr.pm_callback = &usb2_bus_attach;
- bus->attach_msg[1].bus = bus;
-
- bus->roothub_msg[0].hdr.pm_callback = &usb2_bus_roothub;
- bus->roothub_msg[0].bus = bus;
- bus->roothub_msg[1].hdr.pm_callback = &usb2_bus_roothub;
- bus->roothub_msg[1].bus = bus;
-
- /* Create USB explore, roothub and callback processes */
-
- if (usb2_proc_create(&bus->giant_callback_proc,
- &bus->bus_mtx, pname, USB_PRI_MED)) {
- printf("WARNING: Creation of USB Giant "
- "callback process failed.\n");
- } else if (usb2_proc_create(&bus->non_giant_callback_proc,
- &bus->bus_mtx, pname, USB_PRI_HIGH)) {
- printf("WARNING: Creation of USB non-Giant "
- "callback process failed.\n");
- } else if (usb2_proc_create(&bus->roothub_proc,
- &bus->bus_mtx, pname, USB_PRI_HIGH)) {
- printf("WARNING: Creation of USB roothub "
- "process failed.\n");
- } else if (usb2_proc_create(&bus->explore_proc,
- &bus->bus_mtx, pname, USB_PRI_MED)) {
- printf("WARNING: Creation of USB explore "
- "process failed.\n");
- } else {
- /* Get final attach going */
- USB_BUS_LOCK(bus);
- if (usb2_proc_msignal(&bus->explore_proc,
- &bus->attach_msg[0], &bus->attach_msg[1])) {
- /* ignore */
- }
- USB_BUS_UNLOCK(bus);
- }
-}
-
-/*------------------------------------------------------------------------*
- * usb2_post_init
- *
- * This function is called to attach all USB busses that were found
- * during bootup.
- *------------------------------------------------------------------------*/
-static void
-usb2_post_init(void *arg)
-{
- struct usb2_bus *bus;
- devclass_t dc;
- device_t dev;
- int max;
- int n;
-
- mtx_lock(&Giant);
-
- usb2_devclass_ptr = devclass_find("usbus");
-
- dc = usb2_devclass_ptr;
- if (dc) {
- max = devclass_get_maxunit(dc) + 1;
- for (n = 0; n != max; n++) {
- dev = devclass_get_device(dc, n);
- if (dev && device_is_attached(dev)) {
- bus = device_get_ivars(dev);
- if (bus) {
- mtx_lock(&Giant);
- usb2_attach_sub(dev, bus);
- mtx_unlock(&Giant);
- }
- }
- }
- } else {
- DPRINTFN(0, "no devclass\n");
- }
- usb2_post_init_called = 1;
-
- /* explore all USB busses in parallell */
-
- usb2_needs_explore_all();
-
- mtx_unlock(&Giant);
-}
-
-SYSINIT(usb2_post_init, SI_SUB_KICK_SCHEDULER, SI_ORDER_ANY, usb2_post_init, NULL);
-SYSUNINIT(usb2_bus_unload, SI_SUB_KLD, SI_ORDER_ANY, usb2_bus_unload, NULL);
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_flush_all_cb
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_mem_flush_all_cb(struct usb2_bus *bus, struct usb2_page_cache *pc,
- struct usb2_page *pg, uint32_t size, uint32_t align)
-{
- usb2_pc_cpu_flush(pc);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_flush_all - factored out code
- *------------------------------------------------------------------------*/
-void
-usb2_bus_mem_flush_all(struct usb2_bus *bus, usb2_bus_mem_cb_t *cb)
-{
- if (cb) {
- cb(bus, &usb2_bus_mem_flush_all_cb);
- }
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_alloc_all_cb
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_mem_alloc_all_cb(struct usb2_bus *bus, struct usb2_page_cache *pc,
- struct usb2_page *pg, uint32_t size, uint32_t align)
-{
- /* need to initialize the page cache */
- pc->tag_parent = bus->dma_parent_tag;
-
- if (usb2_pc_alloc_mem(pc, pg, size, align)) {
- bus->alloc_failed = 1;
- }
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_alloc_all - factored out code
- *
- * Returns:
- * 0: Success
- * Else: Failure
- *------------------------------------------------------------------------*/
-uint8_t
-usb2_bus_mem_alloc_all(struct usb2_bus *bus, bus_dma_tag_t dmat,
- usb2_bus_mem_cb_t *cb)
-{
- bus->alloc_failed = 0;
-
- mtx_init(&bus->bus_mtx, device_get_nameunit(bus->parent),
- NULL, MTX_DEF | MTX_RECURSE);
-
- usb2_callout_init_mtx(&bus->power_wdog,
- &bus->bus_mtx, CALLOUT_RETURNUNLOCKED);
-
- TAILQ_INIT(&bus->intr_q.head);
-
- usb2_dma_tag_setup(bus->dma_parent_tag, bus->dma_tags,
- dmat, &bus->bus_mtx, NULL, NULL, 32, USB_BUS_DMA_TAG_MAX);
-
- if ((bus->devices_max > USB_MAX_DEVICES) ||
- (bus->devices_max < USB_MIN_DEVICES) ||
- (bus->devices == NULL)) {
- DPRINTFN(0, "Devices field has not been "
- "initialised properly!\n");
- bus->alloc_failed = 1; /* failure */
- }
- if (cb) {
- cb(bus, &usb2_bus_mem_alloc_all_cb);
- }
- if (bus->alloc_failed) {
- usb2_bus_mem_free_all(bus, cb);
- }
- return (bus->alloc_failed);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_free_all_cb
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_mem_free_all_cb(struct usb2_bus *bus, struct usb2_page_cache *pc,
- struct usb2_page *pg, uint32_t size, uint32_t align)
-{
- usb2_pc_free_mem(pc);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_mem_free_all - factored out code
- *------------------------------------------------------------------------*/
-void
-usb2_bus_mem_free_all(struct usb2_bus *bus, usb2_bus_mem_cb_t *cb)
-{
- if (cb) {
- cb(bus, &usb2_bus_mem_free_all_cb);
- }
- usb2_dma_tag_unsetup(bus->dma_parent_tag);
-
- mtx_destroy(&bus->bus_mtx);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_roothub
- *
- * This function is used to execute roothub control requests on the
- * roothub and is called from the roothub process.
- *------------------------------------------------------------------------*/
-static void
-usb2_bus_roothub(struct usb2_proc_msg *pm)
-{
- struct usb2_bus *bus;
-
- bus = ((struct usb2_bus_msg *)pm)->bus;
-
- USB_BUS_LOCK_ASSERT(bus, MA_OWNED);
-
- (bus->methods->roothub_exec) (bus);
-}
-
-/*------------------------------------------------------------------------*
- * usb2_bus_roothub_exec
- *
- * This function is used to schedule the "roothub_done" bus callback
- * method. The bus lock must be locked when calling this function.
- *------------------------------------------------------------------------*/
-void
-usb2_bus_roothub_exec(struct usb2_bus *bus)
-{
- USB_BUS_LOCK_ASSERT(bus, MA_OWNED);
-
- if (usb2_proc_msignal(&bus->roothub_proc,
- &bus->roothub_msg[0], &bus->roothub_msg[1])) {
- /* ignore */
- }
-}
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