diff options
Diffstat (limited to 'sys/dev/usb2/controller/usb2_controller.c')
| -rw-r--r-- | sys/dev/usb2/controller/usb2_controller.c | 623 |
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 */ - } -} |
