diff options
Diffstat (limited to 'drivers/usb/gadget/dummy_hcd.c')
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 1162 |
1 files changed, 794 insertions, 368 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index d3dcabc1a5f..e755a9d267f 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -70,6 +70,19 @@ MODULE_DESCRIPTION (DRIVER_DESC); MODULE_AUTHOR ("David Brownell"); MODULE_LICENSE ("GPL"); +struct dummy_hcd_module_parameters { + bool is_super_speed; + bool is_high_speed; +}; + +static struct dummy_hcd_module_parameters mod_data = { + .is_super_speed = false, + .is_high_speed = true, +}; +module_param_named(is_super_speed, mod_data.is_super_speed, bool, S_IRUGO); +MODULE_PARM_DESC(is_super_speed, "true to simulate SuperSpeed connection"); +module_param_named(is_high_speed, mod_data.is_high_speed, bool, S_IRUGO); +MODULE_PARM_DESC(is_high_speed, "true to simulate HighSpeed connection"); /*-------------------------------------------------------------------------*/ /* gadget side driver data structres */ @@ -152,6 +165,22 @@ enum dummy_rh_state { DUMMY_RH_RUNNING }; +struct dummy_hcd { + struct dummy *dum; + enum dummy_rh_state rh_state; + struct timer_list timer; + u32 port_status; + u32 old_status; + unsigned long re_timeout; + + struct usb_device *udev; + struct list_head urbp_list; + + unsigned active:1; + unsigned old_active:1; + unsigned resuming:1; +}; + struct dummy { spinlock_t lock; @@ -167,36 +196,27 @@ struct dummy { u16 devstatus; unsigned udc_suspended:1; unsigned pullup:1; - unsigned active:1; - unsigned old_active:1; /* * MASTER/HOST side support */ - enum dummy_rh_state rh_state; - struct timer_list timer; - u32 port_status; - u32 old_status; - unsigned resuming:1; - unsigned long re_timeout; - - struct usb_device *udev; - struct list_head urbp_list; + struct dummy_hcd *hs_hcd; + struct dummy_hcd *ss_hcd; }; -static inline struct dummy *hcd_to_dummy (struct usb_hcd *hcd) +static inline struct dummy_hcd *hcd_to_dummy_hcd(struct usb_hcd *hcd) { - return (struct dummy *) (hcd->hcd_priv); + return (struct dummy_hcd *) (hcd->hcd_priv); } -static inline struct usb_hcd *dummy_to_hcd (struct dummy *dum) +static inline struct usb_hcd *dummy_hcd_to_hcd(struct dummy_hcd *dum) { return container_of((void *) dum, struct usb_hcd, hcd_priv); } -static inline struct device *dummy_dev (struct dummy *dum) +static inline struct device *dummy_dev(struct dummy_hcd *dum) { - return dummy_to_hcd(dum)->self.controller; + return dummy_hcd_to_hcd(dum)->self.controller; } static inline struct device *udc_dev (struct dummy *dum) @@ -209,9 +229,13 @@ static inline struct dummy *ep_to_dummy (struct dummy_ep *ep) return container_of (ep->gadget, struct dummy, gadget); } -static inline struct dummy *gadget_to_dummy (struct usb_gadget *gadget) +static inline struct dummy_hcd *gadget_to_dummy_hcd(struct usb_gadget *gadget) { - return container_of (gadget, struct dummy, gadget); + struct dummy *dum = container_of(gadget, struct dummy, gadget); + if (dum->gadget.speed == USB_SPEED_SUPER) + return dum->ss_hcd; + else + return dum->hs_hcd; } static inline struct dummy *gadget_dev_to_dummy (struct device *dev) @@ -219,7 +243,7 @@ static inline struct dummy *gadget_dev_to_dummy (struct device *dev) return container_of (dev, struct dummy, gadget.dev); } -static struct dummy *the_controller; +static struct dummy the_controller; /*-------------------------------------------------------------------------*/ @@ -259,61 +283,122 @@ stop_activity (struct dummy *dum) /* driver now does any non-usb quiescing necessary */ } -/* caller must hold lock */ -static void -set_link_state (struct dummy *dum) -{ - dum->active = 0; - if ((dum->port_status & USB_PORT_STAT_POWER) == 0) - dum->port_status = 0; - - /* UDC suspend must cause a disconnect */ - else if (!dum->pullup || dum->udc_suspended) { - dum->port_status &= ~(USB_PORT_STAT_CONNECTION | - USB_PORT_STAT_ENABLE | - USB_PORT_STAT_LOW_SPEED | - USB_PORT_STAT_HIGH_SPEED | - USB_PORT_STAT_SUSPEND); - if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0) - dum->port_status |= (USB_PORT_STAT_C_CONNECTION << 16); +/** + * set_link_state_by_speed() - Sets the current state of the link according to + * the hcd speed + * @dum_hcd: pointer to the dummy_hcd structure to update the link state for + * + * This function updates the port_status according to the link state and the + * speed of the hcd. + */ +static void set_link_state_by_speed(struct dummy_hcd *dum_hcd) +{ + struct dummy *dum = dum_hcd->dum; + + if (dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3) { + if ((dum_hcd->port_status & USB_SS_PORT_STAT_POWER) == 0) { + dum_hcd->port_status = 0; + } else if (!dum->pullup || dum->udc_suspended) { + /* UDC suspend must cause a disconnect */ + dum_hcd->port_status &= ~(USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_ENABLE); + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) != 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + } else { + /* device is connected and not suspended */ + dum_hcd->port_status |= (USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_SPEED_5GBPS) ; + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) == 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + if ((dum_hcd->port_status & + USB_PORT_STAT_ENABLE) == 1 && + (dum_hcd->port_status & + USB_SS_PORT_LS_U0) == 1 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) + dum_hcd->active = 1; + } } else { - dum->port_status |= USB_PORT_STAT_CONNECTION; - if ((dum->old_status & USB_PORT_STAT_CONNECTION) == 0) - dum->port_status |= (USB_PORT_STAT_C_CONNECTION << 16); - if ((dum->port_status & USB_PORT_STAT_ENABLE) == 0) - dum->port_status &= ~USB_PORT_STAT_SUSPEND; - else if ((dum->port_status & USB_PORT_STAT_SUSPEND) == 0 && - dum->rh_state != DUMMY_RH_SUSPENDED) - dum->active = 1; + if ((dum_hcd->port_status & USB_PORT_STAT_POWER) == 0) { + dum_hcd->port_status = 0; + } else if (!dum->pullup || dum->udc_suspended) { + /* UDC suspend must cause a disconnect */ + dum_hcd->port_status &= ~(USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_ENABLE | + USB_PORT_STAT_LOW_SPEED | + USB_PORT_STAT_HIGH_SPEED | + USB_PORT_STAT_SUSPEND); + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) != 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + } else { + dum_hcd->port_status |= USB_PORT_STAT_CONNECTION; + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) == 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0) + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; + else if ((dum_hcd->port_status & + USB_PORT_STAT_SUSPEND) == 0 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) + dum_hcd->active = 1; + } } +} + +/* caller must hold lock */ +static void set_link_state(struct dummy_hcd *dum_hcd) +{ + struct dummy *dum = dum_hcd->dum; - if ((dum->port_status & USB_PORT_STAT_ENABLE) == 0 || dum->active) - dum->resuming = 0; + dum_hcd->active = 0; + if (dum->pullup) + if ((dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3 && + dum->gadget.speed != USB_SPEED_SUPER) || + (dummy_hcd_to_hcd(dum_hcd)->speed != HCD_USB3 && + dum->gadget.speed == USB_SPEED_SUPER)) + return; - if ((dum->port_status & USB_PORT_STAT_CONNECTION) == 0 || - (dum->port_status & USB_PORT_STAT_RESET) != 0) { - if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0 && - (dum->old_status & USB_PORT_STAT_RESET) == 0 && - dum->driver) { - stop_activity (dum); - spin_unlock (&dum->lock); - dum->driver->disconnect (&dum->gadget); - spin_lock (&dum->lock); + set_link_state_by_speed(dum_hcd); + + if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0 || + dum_hcd->active) + dum_hcd->resuming = 0; + + /* if !connected or reset */ + if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0 || + (dum_hcd->port_status & USB_PORT_STAT_RESET) != 0) { + /* + * We're connected and not reset (reset occurred now), + * and driver attached - disconnect! + */ + if ((dum_hcd->old_status & USB_PORT_STAT_CONNECTION) != 0 && + (dum_hcd->old_status & USB_PORT_STAT_RESET) == 0 && + dum->driver) { + stop_activity(dum); + spin_unlock(&dum->lock); + dum->driver->disconnect(&dum->gadget); + spin_lock(&dum->lock); } - } else if (dum->active != dum->old_active) { - if (dum->old_active && dum->driver->suspend) { - spin_unlock (&dum->lock); - dum->driver->suspend (&dum->gadget); - spin_lock (&dum->lock); - } else if (!dum->old_active && dum->driver->resume) { - spin_unlock (&dum->lock); - dum->driver->resume (&dum->gadget); - spin_lock (&dum->lock); + } else if (dum_hcd->active != dum_hcd->old_active) { + if (dum_hcd->old_active && dum->driver->suspend) { + spin_unlock(&dum->lock); + dum->driver->suspend(&dum->gadget); + spin_lock(&dum->lock); + } else if (!dum_hcd->old_active && dum->driver->resume) { + spin_unlock(&dum->lock); + dum->driver->resume(&dum->gadget); + spin_lock(&dum->lock); } } - dum->old_status = dum->port_status; - dum->old_active = dum->active; + dum_hcd->old_status = dum_hcd->port_status; + dum_hcd->old_active = dum_hcd->active; } /*-------------------------------------------------------------------------*/ @@ -332,6 +417,7 @@ static int dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct dummy *dum; + struct dummy_hcd *dum_hcd; struct dummy_ep *ep; unsigned max; int retval; @@ -341,9 +427,19 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) || desc->bDescriptorType != USB_DT_ENDPOINT) return -EINVAL; dum = ep_to_dummy (ep); - if (!dum->driver || !is_enabled (dum)) + if (!dum->driver) + return -ESHUTDOWN; + + dum_hcd = gadget_to_dummy_hcd(&dum->gadget); + if (!is_enabled(dum_hcd)) return -ESHUTDOWN; - max = le16_to_cpu(desc->wMaxPacketSize) & 0x3ff; + + /* + * For HS/FS devices only bits 0..10 of the wMaxPacketSize represent the + * maximum packet size. + * For SS devices the wMaxPacketSize is limited by 1024. + */ + max = le16_to_cpu(desc->wMaxPacketSize) & 0x7ff; /* drivers must not request bad settings, since lower levels * (hardware or its drivers) may not check. some endpoints @@ -361,6 +457,10 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; } switch (dum->gadget.speed) { + case USB_SPEED_SUPER: + if (max == 1024) + break; + goto done; case USB_SPEED_HIGH: if (max == 512) break; @@ -379,6 +479,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { + case USB_SPEED_SUPER: case USB_SPEED_HIGH: if (max <= 1024) break; @@ -399,6 +500,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { + case USB_SPEED_SUPER: case USB_SPEED_HIGH: if (max <= 1024) break; @@ -425,10 +527,18 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) (desc->bEndpointAddress & USB_DIR_IN) ? "in" : "out", ({ char *val; switch (desc->bmAttributes & 0x03) { - case USB_ENDPOINT_XFER_BULK: val = "bulk"; break; - case USB_ENDPOINT_XFER_ISOC: val = "iso"; break; - case USB_ENDPOINT_XFER_INT: val = "intr"; break; - default: val = "ctrl"; break; + case USB_ENDPOINT_XFER_BULK: + val = "bulk"; + break; + case USB_ENDPOINT_XFER_ISOC: + val = "iso"; + break; + case USB_ENDPOINT_XFER_INT: + val = "intr"; + break; + default: + val = "ctrl"; + break; }; val; }), max); @@ -507,6 +617,7 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, struct dummy_ep *ep; struct dummy_request *req; struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; req = usb_request_to_dummy_request (_req); @@ -518,7 +629,8 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, return -EINVAL; dum = ep_to_dummy (ep); - if (!dum->driver || !is_enabled (dum)) + dum_hcd = gadget_to_dummy_hcd(&dum->gadget); + if (!dum->driver || !is_enabled(dum_hcd)) return -ESHUTDOWN; #if 0 @@ -662,24 +774,24 @@ static int dummy_g_get_frame (struct usb_gadget *_gadget) static int dummy_wakeup (struct usb_gadget *_gadget) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; - dum = gadget_to_dummy (_gadget); - if (!(dum->devstatus & ( (1 << USB_DEVICE_B_HNP_ENABLE) + dum_hcd = gadget_to_dummy_hcd(_gadget); + if (!(dum_hcd->dum->devstatus & ((1 << USB_DEVICE_B_HNP_ENABLE) | (1 << USB_DEVICE_REMOTE_WAKEUP)))) return -EINVAL; - if ((dum->port_status & USB_PORT_STAT_CONNECTION) == 0) + if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0) return -ENOLINK; - if ((dum->port_status & USB_PORT_STAT_SUSPEND) == 0 && - dum->rh_state != DUMMY_RH_SUSPENDED) + if ((dum_hcd->port_status & USB_PORT_STAT_SUSPEND) == 0 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) return -EIO; /* FIXME: What if the root hub is suspended but the port isn't? */ /* hub notices our request, issues downstream resume, etc */ - dum->resuming = 1; - dum->re_timeout = jiffies + msecs_to_jiffies(20); - mod_timer (&dummy_to_hcd (dum)->rh_timer, dum->re_timeout); + dum_hcd->resuming = 1; + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(20); + mod_timer(&dummy_hcd_to_hcd(dum_hcd)->rh_timer, dum_hcd->re_timeout); return 0; } @@ -687,7 +799,7 @@ static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value) { struct dummy *dum; - dum = gadget_to_dummy (_gadget); + dum = (gadget_to_dummy_hcd(_gadget))->dum; if (value) dum->devstatus |= (1 << USB_DEVICE_SELF_POWERED); else @@ -695,26 +807,68 @@ static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value) return 0; } +static void dummy_udc_udpate_ep0(struct dummy *dum) +{ + u32 i; + + if (dum->gadget.speed == USB_SPEED_SUPER) { + for (i = 0; i < DUMMY_ENDPOINTS; i++) + dum->ep[i].ep.max_streams = 0x10; + dum->ep[0].ep.maxpacket = 9; + } else { + for (i = 0; i < DUMMY_ENDPOINTS; i++) + dum->ep[i].ep.max_streams = 0; + dum->ep[0].ep.maxpacket = 64; + } +} + static int dummy_pullup (struct usb_gadget *_gadget, int value) { + struct dummy_hcd *dum_hcd; struct dummy *dum; unsigned long flags; - dum = gadget_to_dummy (_gadget); + dum = gadget_dev_to_dummy(&_gadget->dev); + + if (value && dum->driver) { + if (mod_data.is_super_speed) + dum->gadget.speed = dum->driver->speed; + else if (mod_data.is_high_speed) + dum->gadget.speed = min_t(u8, USB_SPEED_HIGH, + dum->driver->speed); + else + dum->gadget.speed = USB_SPEED_FULL; + dummy_udc_udpate_ep0(dum); + + if (dum->gadget.speed < dum->driver->speed) + dev_dbg(udc_dev(dum), "This device can perform faster" + " if you connect it to a %s port...\n", + (dum->driver->speed == USB_SPEED_SUPER ? + "SuperSpeed" : "HighSpeed")); + } + dum_hcd = gadget_to_dummy_hcd(_gadget); + spin_lock_irqsave (&dum->lock, flags); dum->pullup = (value != 0); - set_link_state (dum); + set_link_state(dum_hcd); spin_unlock_irqrestore (&dum->lock, flags); - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } +static int dummy_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver); +static int dummy_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver); + static const struct usb_gadget_ops dummy_ops = { .get_frame = dummy_g_get_frame, .wakeup = dummy_wakeup, .set_selfpowered = dummy_set_selfpowered, .pullup = dummy_pullup, + .udc_start = dummy_udc_start, + .udc_stop = dummy_udc_stop, }; /*-------------------------------------------------------------------------*/ @@ -747,18 +901,13 @@ static DEVICE_ATTR (function, S_IRUGO, show_function, NULL); * for each driver that registers: just add to a big root hub. */ -int -usb_gadget_probe_driver(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) +static int dummy_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct dummy *dum = the_controller; - int retval, i; + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); + struct dummy *dum = dum_hcd->dum; - if (!dum) - return -EINVAL; - if (dum->driver) - return -EBUSY; - if (!bind || !driver->setup || driver->speed == USB_SPEED_UNKNOWN) + if (driver->speed == USB_SPEED_UNKNOWN) return -EINVAL; /* @@ -768,121 +917,77 @@ usb_gadget_probe_driver(struct usb_gadget_driver *driver, dum->devstatus = 0; - INIT_LIST_HEAD (&dum->gadget.ep_list); - for (i = 0; i < DUMMY_ENDPOINTS; i++) { - struct dummy_ep *ep = &dum->ep [i]; - - if (!ep_name [i]) - break; - ep->ep.name = ep_name [i]; - ep->ep.ops = &dummy_ep_ops; - list_add_tail (&ep->ep.ep_list, &dum->gadget.ep_list); - ep->halted = ep->wedged = ep->already_seen = - ep->setup_stage = 0; - ep->ep.maxpacket = ~0; - ep->last_io = jiffies; - ep->gadget = &dum->gadget; - ep->desc = NULL; - INIT_LIST_HEAD (&ep->queue); - } - - dum->gadget.ep0 = &dum->ep [0].ep; - dum->ep [0].ep.maxpacket = 64; - list_del_init (&dum->ep [0].ep.ep_list); - INIT_LIST_HEAD(&dum->fifo_req.queue); - - driver->driver.bus = NULL; dum->driver = driver; - dum->gadget.dev.driver = &driver->driver; dev_dbg (udc_dev(dum), "binding gadget driver '%s'\n", driver->driver.name); - retval = bind(&dum->gadget); - if (retval) { - dum->driver = NULL; - dum->gadget.dev.driver = NULL; - return retval; - } - - /* khubd will enumerate this in a while */ - spin_lock_irq (&dum->lock); - dum->pullup = 1; - set_link_state (dum); - spin_unlock_irq (&dum->lock); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int -usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +static int dummy_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct dummy *dum = the_controller; - unsigned long flags; - - if (!dum) - return -ENODEV; - if (!driver || driver != dum->driver || !driver->unbind) - return -EINVAL; + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); + struct dummy *dum = dum_hcd->dum; dev_dbg (udc_dev(dum), "unregister gadget driver '%s'\n", driver->driver.name); - spin_lock_irqsave (&dum->lock, flags); - dum->pullup = 0; - set_link_state (dum); - spin_unlock_irqrestore (&dum->lock, flags); - - driver->unbind (&dum->gadget); - dum->gadget.dev.driver = NULL; dum->driver = NULL; - spin_lock_irqsave (&dum->lock, flags); - dum->pullup = 0; - set_link_state (dum); - spin_unlock_irqrestore (&dum->lock, flags); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dummy_pullup(&dum->gadget, 0); return 0; } -EXPORT_SYMBOL (usb_gadget_unregister_driver); #undef is_enabled -/* just declare this in any driver that really need it */ -extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode); - -int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode) -{ - return -ENOSYS; -} -EXPORT_SYMBOL (net2280_set_fifo_mode); - - /* The gadget structure is stored inside the hcd structure and will be * released along with it. */ static void dummy_gadget_release (struct device *dev) { - struct dummy *dum = gadget_dev_to_dummy (dev); + return; +} + +static void init_dummy_udc_hw(struct dummy *dum) +{ + int i; + + INIT_LIST_HEAD(&dum->gadget.ep_list); + for (i = 0; i < DUMMY_ENDPOINTS; i++) { + struct dummy_ep *ep = &dum->ep[i]; + + if (!ep_name[i]) + break; + ep->ep.name = ep_name[i]; + ep->ep.ops = &dummy_ep_ops; + list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list); + ep->halted = ep->wedged = ep->already_seen = + ep->setup_stage = 0; + ep->ep.maxpacket = ~0; + ep->last_io = jiffies; + ep->gadget = &dum->gadget; + ep->desc = NULL; + INIT_LIST_HEAD(&ep->queue); + } + + dum->gadget.ep0 = &dum->ep[0].ep; + list_del_init(&dum->ep[0].ep.ep_list); + INIT_LIST_HEAD(&dum->fifo_req.queue); - usb_put_hcd (dummy_to_hcd (dum)); +#ifdef CONFIG_USB_OTG + dum->gadget.is_otg = 1; +#endif } static int dummy_udc_probe (struct platform_device *pdev) { - struct dummy *dum = the_controller; + struct dummy *dum = &the_controller; int rc; - usb_get_hcd(dummy_to_hcd(dum)); - dum->gadget.name = gadget_name; dum->gadget.ops = &dummy_ops; dum->gadget.is_dualspeed = 1; - /* maybe claim OTG support, though we won't complete HNP */ - dum->gadget.is_otg = (dummy_to_hcd(dum)->self.otg_port != 0); - dev_set_name(&dum->gadget.dev, "gadget"); dum->gadget.dev.parent = &pdev->dev; dum->gadget.dev.release = dummy_gadget_release; @@ -892,11 +997,22 @@ static int dummy_udc_probe (struct platform_device *pdev) return rc; } + init_dummy_udc_hw(dum); + + rc = usb_add_gadget_udc(&pdev->dev, &dum->gadget); + if (rc < 0) + goto err_udc; + rc = device_create_file (&dum->gadget.dev, &dev_attr_function); if (rc < 0) - device_unregister (&dum->gadget.dev); - else - platform_set_drvdata(pdev, dum); + goto err_dev; + platform_set_drvdata(pdev, dum); + return rc; + +err_dev: + usb_del_gadget_udc(&dum->gadget); +err_udc: + device_unregister(&dum->gadget.dev); return rc; } @@ -904,37 +1020,41 @@ static int dummy_udc_remove (struct platform_device *pdev) { struct dummy *dum = platform_get_drvdata (pdev); + usb_del_gadget_udc(&dum->gadget); platform_set_drvdata (pdev, NULL); device_remove_file (&dum->gadget.dev, &dev_attr_function); device_unregister (&dum->gadget.dev); return 0; } -static int dummy_udc_suspend (struct platform_device *pdev, pm_message_t state) +static void dummy_udc_pm(struct dummy *dum, struct dummy_hcd *dum_hcd, + int suspend) { - struct dummy *dum = platform_get_drvdata(pdev); + spin_lock_irq(&dum->lock); + dum->udc_suspended = suspend; + set_link_state(dum_hcd); + spin_unlock_irq(&dum->lock); +} - dev_dbg (&pdev->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->udc_suspended = 1; - set_link_state (dum); - spin_unlock_irq (&dum->lock); +static int dummy_udc_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct dummy *dum = platform_get_drvdata(pdev); + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(&dum->gadget); - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dev_dbg(&pdev->dev, "%s\n", __func__); + dummy_udc_pm(dum, dum_hcd, 1); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } -static int dummy_udc_resume (struct platform_device *pdev) +static int dummy_udc_resume(struct platform_device *pdev) { - struct dummy *dum = platform_get_drvdata(pdev); + struct dummy *dum = platform_get_drvdata(pdev); + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(&dum->gadget); - dev_dbg (&pdev->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->udc_suspended = 0; - set_link_state (dum); - spin_unlock_irq (&dum->lock); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dev_dbg(&pdev->dev, "%s\n", __func__); + dummy_udc_pm(dum, dum_hcd, 0); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } @@ -968,7 +1088,7 @@ static int dummy_urb_enqueue ( struct urb *urb, gfp_t mem_flags ) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; struct urbp *urbp; unsigned long flags; int rc; @@ -981,51 +1101,51 @@ static int dummy_urb_enqueue ( return -ENOMEM; urbp->urb = urb; - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); rc = usb_hcd_link_urb_to_ep(hcd, urb); if (rc) { kfree(urbp); goto done; } - if (!dum->udev) { - dum->udev = urb->dev; - usb_get_dev (dum->udev); - } else if (unlikely (dum->udev != urb->dev)) - dev_err (dummy_dev(dum), "usb_device address has changed!\n"); + if (!dum_hcd->udev) { + dum_hcd->udev = urb->dev; + usb_get_dev(dum_hcd->udev); + } else if (unlikely(dum_hcd->udev != urb->dev)) + dev_err(dummy_dev(dum_hcd), "usb_device address has changed!\n"); - list_add_tail (&urbp->urbp_list, &dum->urbp_list); + list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list); urb->hcpriv = urbp; if (usb_pipetype (urb->pipe) == PIPE_CONTROL) urb->error_count = 1; /* mark as a new urb */ /* kick the scheduler, it'll do the rest */ - if (!timer_pending (&dum->timer)) - mod_timer (&dum->timer, jiffies + 1); + if (!timer_pending(&dum_hcd->timer)) + mod_timer(&dum_hcd->timer, jiffies + 1); done: - spin_unlock_irqrestore(&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return rc; } static int dummy_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; int rc; /* giveback happens automatically in timer callback, * so make sure the callback happens */ - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); rc = usb_hcd_check_unlink_urb(hcd, urb, status); - if (!rc && dum->rh_state != DUMMY_RH_RUNNING && - !list_empty(&dum->urbp_list)) - mod_timer (&dum->timer, jiffies); + if (!rc && dum_hcd->rh_state != DUMMY_RH_RUNNING && + !list_empty(&dum_hcd->urbp_list)) + mod_timer(&dum_hcd->timer, jiffies); - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return rc; } @@ -1162,10 +1282,25 @@ static int periodic_bytes (struct dummy *dum, struct dummy_ep *ep) tmp *= 8 /* applies to entire frame */; limit += limit * tmp; } + if (dum->gadget.speed == USB_SPEED_SUPER) { + switch (ep->desc->bmAttributes & 0x03) { + case USB_ENDPOINT_XFER_ISOC: + /* Sec. 4.4.8.2 USB3.0 Spec */ + limit = 3 * 16 * 1024 * 8; + break; + case USB_ENDPOINT_XFER_INT: + /* Sec. 4.4.7.2 USB3.0 Spec */ + limit = 3 * 1024 * 8; + break; + case USB_ENDPOINT_XFER_BULK: + default: + break; + } + } return limit; } -#define is_active(dum) ((dum->port_status & \ +#define is_active(dum_hcd) ((dum_hcd->port_status & \ (USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE | \ USB_PORT_STAT_SUSPEND)) \ == (USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE)) @@ -1174,7 +1309,8 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) { int i; - if (!is_active (dum)) + if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ? + dum->ss_hcd : dum->hs_hcd))) return NULL; if ((address & ~USB_DIR_IN) == 0) return &dum->ep [0]; @@ -1211,11 +1347,12 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) * 1 - if the request wasn't handles * error code on error */ -static int handle_control_request(struct dummy *dum, struct urb *urb, +static int handle_control_request(struct dummy_hcd *dum_hcd, struct urb *urb, struct usb_ctrlrequest *setup, int *status) { struct dummy_ep *ep2; + struct dummy *dum = dum_hcd->dum; int ret_val = 1; unsigned w_index; unsigned w_value; @@ -1247,6 +1384,27 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, case USB_DEVICE_A_ALT_HNP_SUPPORT: dum->gadget.a_alt_hnp_support = 1; break; + case USB_DEVICE_U1_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U1_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_U2_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U2_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_LTM_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_LTM_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; default: ret_val = -EOPNOTSUPP; } @@ -1273,6 +1431,27 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, case USB_DEVICE_REMOTE_WAKEUP: w_value = USB_DEVICE_REMOTE_WAKEUP; break; + case USB_DEVICE_U1_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U1_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_U2_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U2_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_LTM_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_LTM_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; default: ret_val = -EOPNOTSUPP; break; @@ -1334,9 +1513,10 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, /* drive both sides of the transfers; looks like irq handlers to * both drivers except the callbacks aren't in_irq(). */ -static void dummy_timer (unsigned long _dum) +static void dummy_timer(unsigned long _dum_hcd) { - struct dummy *dum = (struct dummy *) _dum; + struct dummy_hcd *dum_hcd = (struct dummy_hcd *) _dum_hcd; + struct dummy *dum = dum_hcd->dum; struct urbp *urbp, *tmp; unsigned long flags; int limit, total; @@ -1353,8 +1533,12 @@ static void dummy_timer (unsigned long _dum) case USB_SPEED_HIGH: total = 512/*bytes*/ * 13/*packets*/ * 8/*uframes*/; break; + case USB_SPEED_SUPER: + /* Bus speed is 500000 bytes/ms, so use a little less */ + total = 490000; + break; default: - dev_err (dummy_dev(dum), "bogus device speed\n"); + dev_err(dummy_dev(dum_hcd), "bogus device speed\n"); return; } @@ -1363,8 +1547,8 @@ static void dummy_timer (unsigned long _dum) /* look at each urb queued by the host side driver */ spin_lock_irqsave (&dum->lock, flags); - if (!dum->udev) { - dev_err (dummy_dev(dum), + if (!dum_hcd->udev) { + dev_err(dummy_dev(dum_hcd), "timer fired with no URBs pending?\n"); spin_unlock_irqrestore (&dum->lock, flags); return; @@ -1377,7 +1561,7 @@ static void dummy_timer (unsigned long _dum) } restart: - list_for_each_entry_safe (urbp, tmp, &dum->urbp_list, urbp_list) { + list_for_each_entry_safe(urbp, tmp, &dum_hcd->urbp_list, urbp_list) { struct urb *urb; struct dummy_request *req; u8 address; @@ -1388,7 +1572,7 @@ restart: urb = urbp->urb; if (urb->unlinked) goto return_urb; - else if (dum->rh_state != DUMMY_RH_RUNNING) + else if (dum_hcd->rh_state != DUMMY_RH_RUNNING) continue; type = usb_pipetype (urb->pipe); @@ -1406,7 +1590,7 @@ restart: ep = find_endpoint(dum, address); if (!ep) { /* set_configuration() disagreement */ - dev_dbg (dummy_dev(dum), + dev_dbg(dummy_dev(dum_hcd), "no ep configured for urb %p\n", urb); status = -EPROTO; @@ -1422,7 +1606,7 @@ restart: } if (ep->halted && !ep->setup_stage) { /* NOTE: must not be iso! */ - dev_dbg (dummy_dev(dum), "ep %s halted, urb %p\n", + dev_dbg(dummy_dev(dum_hcd), "ep %s halted, urb %p\n", ep->ep.name, urb); status = -EPIPE; goto return_urb; @@ -1457,7 +1641,7 @@ restart: ep->setup_stage = 0; ep->halted = 0; - value = handle_control_request(dum, urb, &setup, + value = handle_control_request(dum_hcd, urb, &setup, &status); /* gadget driver handles all other requests. block @@ -1527,20 +1711,20 @@ return_urb: if (ep) ep->already_seen = ep->setup_stage = 0; - usb_hcd_unlink_urb_from_ep(dummy_to_hcd(dum), urb); + usb_hcd_unlink_urb_from_ep(dummy_hcd_to_hcd(dum_hcd), urb); spin_unlock (&dum->lock); - usb_hcd_giveback_urb(dummy_to_hcd(dum), urb, status); + usb_hcd_giveback_urb(dummy_hcd_to_hcd(dum_hcd), urb, status); spin_lock (&dum->lock); goto restart; } - if (list_empty (&dum->urbp_list)) { - usb_put_dev (dum->udev); - dum->udev = NULL; - } else if (dum->rh_state == DUMMY_RH_RUNNING) { + if (list_empty(&dum_hcd->urbp_list)) { + usb_put_dev(dum_hcd->udev); + dum_hcd->udev = NULL; + } else if (dum_hcd->rh_state == DUMMY_RH_RUNNING) { /* want a 1 msec delay here */ - mod_timer (&dum->timer, jiffies + msecs_to_jiffies(1)); + mod_timer(&dum_hcd->timer, jiffies + msecs_to_jiffies(1)); } spin_unlock_irqrestore (&dum->lock, flags); @@ -1557,36 +1741,48 @@ return_urb: static int dummy_hub_status (struct usb_hcd *hcd, char *buf) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; int retval = 0; - dum = hcd_to_dummy (hcd); + dum_hcd = hcd_to_dummy_hcd(hcd); - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); if (!HCD_HW_ACCESSIBLE(hcd)) goto done; - if (dum->resuming && time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); - dum->port_status &= ~USB_PORT_STAT_SUSPEND; - set_link_state (dum); + if (dum_hcd->resuming && time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; + set_link_state(dum_hcd); } - if ((dum->port_status & PORT_C_MASK) != 0) { + if ((dum_hcd->port_status & PORT_C_MASK) != 0) { *buf = (1 << 1); - dev_dbg (dummy_dev(dum), "port status 0x%08x has changes\n", - dum->port_status); + dev_dbg(dummy_dev(dum_hcd), "port status 0x%08x has changes\n", + dum_hcd->port_status); retval = 1; - if (dum->rh_state == DUMMY_RH_SUSPENDED) + if (dum_hcd->rh_state == DUMMY_RH_SUSPENDED) usb_hcd_resume_root_hub (hcd); } done: - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return retval; } static inline void +ss_hub_descriptor(struct usb_hub_descriptor *desc) +{ + memset(desc, 0, sizeof *desc); + desc->bDescriptorType = 0x2a; + desc->bDescLength = 12; + desc->wHubCharacteristics = cpu_to_le16(0x0001); + desc->bNbrPorts = 1; + desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/ + desc->u.ss.DeviceRemovable = 0xffff; +} + +static inline void hub_descriptor (struct usb_hub_descriptor *desc) { memset (desc, 0, sizeof *desc); @@ -1606,39 +1802,64 @@ static int dummy_hub_control ( char *buf, u16 wLength ) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; int retval = 0; unsigned long flags; if (!HCD_HW_ACCESSIBLE(hcd)) return -ETIMEDOUT; - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + + spin_lock_irqsave(&dum_hcd->dum->lock, flags); switch (typeReq) { case ClearHubFeature: break; case ClearPortFeature: switch (wValue) { case USB_PORT_FEAT_SUSPEND: - if (dum->port_status & USB_PORT_STAT_SUSPEND) { + if (hcd->speed == HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_SUSPEND req not " + "supported for USB 3.0 roothub\n"); + goto error; + } + if (dum_hcd->port_status & USB_PORT_STAT_SUSPEND) { /* 20msec resume signaling */ - dum->resuming = 1; - dum->re_timeout = jiffies + + dum_hcd->resuming = 1; + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(20); } break; case USB_PORT_FEAT_POWER: - if (dum->port_status & USB_PORT_STAT_POWER) - dev_dbg (dummy_dev(dum), "power-off\n"); + if (hcd->speed == HCD_USB3) { + if (dum_hcd->port_status & USB_PORT_STAT_POWER) + dev_dbg(dummy_dev(dum_hcd), + "power-off\n"); + } else + if (dum_hcd->port_status & + USB_SS_PORT_STAT_POWER) + dev_dbg(dummy_dev(dum_hcd), + "power-off\n"); /* FALLS THROUGH */ default: - dum->port_status &= ~(1 << wValue); - set_link_state (dum); + dum_hcd->port_status &= ~(1 << wValue); + set_link_state(dum_hcd); } break; case GetHubDescriptor: - hub_descriptor ((struct usb_hub_descriptor *) buf); + if (hcd->speed == HCD_USB3 && + (wLength < USB_DT_SS_HUB_SIZE || + wValue != (USB_DT_SS_HUB << 8))) { + dev_dbg(dummy_dev(dum_hcd), + "Wrong hub descriptor type for " + "USB 3.0 roothub.\n"); + goto error; + } + if (hcd->speed == HCD_USB3) + ss_hub_descriptor((struct usb_hub_descriptor *) buf); + else + hub_descriptor((struct usb_hub_descriptor *) buf); break; case GetHubStatus: *(__le32 *) buf = cpu_to_le32 (0); @@ -1650,127 +1871,210 @@ static int dummy_hub_control ( /* whoever resets or resumes must GetPortStatus to * complete it!! */ - if (dum->resuming && - time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); - dum->port_status &= ~USB_PORT_STAT_SUSPEND; + if (dum_hcd->resuming && + time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; } - if ((dum->port_status & USB_PORT_STAT_RESET) != 0 && - time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_RESET << 16); - dum->port_status &= ~USB_PORT_STAT_RESET; - if (dum->pullup) { - dum->port_status |= USB_PORT_STAT_ENABLE; - /* give it the best speed we agree on */ - dum->gadget.speed = dum->driver->speed; - dum->gadget.ep0->maxpacket = 64; - switch (dum->gadget.speed) { - case USB_SPEED_HIGH: - dum->port_status |= - USB_PORT_STAT_HIGH_SPEED; - break; - case USB_SPEED_LOW: - dum->gadget.ep0->maxpacket = 8; - dum->port_status |= - USB_PORT_STAT_LOW_SPEED; - break; - default: - dum->gadget.speed = USB_SPEED_FULL; - break; + if ((dum_hcd->port_status & USB_PORT_STAT_RESET) != 0 && + time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_RESET << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_RESET; + if (dum_hcd->dum->pullup) { + dum_hcd->port_status |= USB_PORT_STAT_ENABLE; + + if (hcd->speed < HCD_USB3) { + switch (dum_hcd->dum->gadget.speed) { + case USB_SPEED_HIGH: + dum_hcd->port_status |= + USB_PORT_STAT_HIGH_SPEED; + break; + case USB_SPEED_LOW: + dum_hcd->dum->gadget.ep0-> + maxpacket = 8; + dum_hcd->port_status |= + USB_PORT_STAT_LOW_SPEED; + break; + default: + dum_hcd->dum->gadget.speed = + USB_SPEED_FULL; + break; + } } } } - set_link_state (dum); - ((__le16 *) buf)[0] = cpu_to_le16 (dum->port_status); - ((__le16 *) buf)[1] = cpu_to_le16 (dum->port_status >> 16); + set_link_state(dum_hcd); + ((__le16 *) buf)[0] = cpu_to_le16 (dum_hcd->port_status); + ((__le16 *) buf)[1] = cpu_to_le16 (dum_hcd->port_status >> 16); break; case SetHubFeature: retval = -EPIPE; break; case SetPortFeature: switch (wValue) { + case USB_PORT_FEAT_LINK_STATE: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_LINK_STATE req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* + * Since this is dummy we don't have an actual link so + * there is nothing to do for the SET_LINK_STATE cmd + */ + break; + case USB_PORT_FEAT_U1_TIMEOUT: + case USB_PORT_FEAT_U2_TIMEOUT: + /* TODO: add suspend/resume support! */ + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_U1/2_TIMEOUT req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + break; case USB_PORT_FEAT_SUSPEND: - if (dum->active) { - dum->port_status |= USB_PORT_STAT_SUSPEND; + /* Applicable only for USB2.0 hub */ + if (hcd->speed == HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_SUSPEND req not " + "supported for USB 3.0 roothub\n"); + goto error; + } + if (dum_hcd->active) { + dum_hcd->port_status |= USB_PORT_STAT_SUSPEND; /* HNP would happen here; for now we * assume b_bus_req is always true. */ - set_link_state (dum); + set_link_state(dum_hcd); if (((1 << USB_DEVICE_B_HNP_ENABLE) - & dum->devstatus) != 0) - dev_dbg (dummy_dev(dum), + & dum_hcd->dum->devstatus) != 0) + dev_dbg(dummy_dev(dum_hcd), "no HNP yet!\n"); } break; case USB_PORT_FEAT_POWER: - dum->port_status |= USB_PORT_STAT_POWER; - set_link_state (dum); + if (hcd->speed == HCD_USB3) + dum_hcd->port_status |= USB_SS_PORT_STAT_POWER; + else + dum_hcd->port_status |= USB_PORT_STAT_POWER; + set_link_state(dum_hcd); break; + case USB_PORT_FEAT_BH_PORT_RESET: + /* Applicable only for USB3.0 hub */ + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_BH_PORT_RESET req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* FALLS THROUGH */ case USB_PORT_FEAT_RESET: /* if it's already enabled, disable */ - dum->port_status &= ~(USB_PORT_STAT_ENABLE + if (hcd->speed == HCD_USB3) { + dum_hcd->port_status = 0; + dum_hcd->port_status = + (USB_SS_PORT_STAT_POWER | + USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_RESET); + } else + dum_hcd->port_status &= ~(USB_PORT_STAT_ENABLE | USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED); - dum->devstatus = 0; - /* 50msec reset signaling */ - dum->re_timeout = jiffies + msecs_to_jiffies(50); + /* + * We want to reset device status. All but the + * Self powered feature + */ + dum_hcd->dum->devstatus &= + (1 << USB_DEVICE_SELF_POWERED); + /* + * FIXME USB3.0: what is the correct reset signaling + * interval? Is it still 50msec as for HS? + */ + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(50); /* FALLS THROUGH */ default: - if ((dum->port_status & USB_PORT_STAT_POWER) != 0) { - dum->port_status |= (1 << wValue); - set_link_state (dum); - } + if (hcd->speed == HCD_USB3) { + if ((dum_hcd->port_status & + USB_SS_PORT_STAT_POWER) != 0) { + dum_hcd->port_status |= (1 << wValue); + set_link_state(dum_hcd); + } + } else + if ((dum_hcd->port_status & + USB_PORT_STAT_POWER) != 0) { + dum_hcd->port_status |= (1 << wValue); + set_link_state(dum_hcd); + } + } + break; + case GetPortErrorCount: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "GetPortErrorCount req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* We'll always return 0 since this is a dummy hub */ + *(__le32 *) buf = cpu_to_le32(0); + break; + case SetHubDepth: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "SetHubDepth req not supported for " + "USB 2.0 roothub\n"); + goto error; } break; - default: - dev_dbg (dummy_dev(dum), + dev_dbg(dummy_dev(dum_hcd), "hub control req%04x v%04x i%04x l%d\n", typeReq, wValue, wIndex, wLength); - +error: /* "protocol stall" on error */ retval = -EPIPE; } - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); - if ((dum->port_status & PORT_C_MASK) != 0) + if ((dum_hcd->port_status & PORT_C_MASK) != 0) usb_hcd_poll_rh_status (hcd); return retval; } static int dummy_bus_suspend (struct usb_hcd *hcd) { - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->rh_state = DUMMY_RH_SUSPENDED; - set_link_state (dum); + spin_lock_irq(&dum_hcd->dum->lock); + dum_hcd->rh_state = DUMMY_RH_SUSPENDED; + set_link_state(dum_hcd); hcd->state = HC_STATE_SUSPENDED; - spin_unlock_irq (&dum->lock); + spin_unlock_irq(&dum_hcd->dum->lock); return 0; } static int dummy_bus_resume (struct usb_hcd *hcd) { - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); int rc = 0; dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); + spin_lock_irq(&dum_hcd->dum->lock); if (!HCD_HW_ACCESSIBLE(hcd)) { rc = -ESHUTDOWN; } else { - dum->rh_state = DUMMY_RH_RUNNING; - set_link_state (dum); - if (!list_empty(&dum->urbp_list)) - mod_timer (&dum->timer, jiffies); + dum_hcd->rh_state = DUMMY_RH_RUNNING; + set_link_state(dum_hcd); + if (!list_empty(&dum_hcd->urbp_list)) + mod_timer(&dum_hcd->timer, jiffies); hcd->state = HC_STATE_RUNNING; } - spin_unlock_irq (&dum->lock); + spin_unlock_irq(&dum_hcd->dum->lock); return rc; } @@ -1786,18 +2090,37 @@ show_urb (char *buf, size_t size, struct urb *urb) urb, ({ char *s; switch (urb->dev->speed) { - case USB_SPEED_LOW: s = "ls"; break; - case USB_SPEED_FULL: s = "fs"; break; - case USB_SPEED_HIGH: s = "hs"; break; - default: s = "?"; break; + case USB_SPEED_LOW: + s = "ls"; + break; + case USB_SPEED_FULL: + s = "fs"; + break; + case USB_SPEED_HIGH: + s = "hs"; + break; + case USB_SPEED_SUPER: + s = "ss"; + break; + default: + s = "?"; + break; }; s; }), ep, ep ? (usb_pipein (urb->pipe) ? "in" : "out") : "", ({ char *s; \ switch (usb_pipetype (urb->pipe)) { \ - case PIPE_CONTROL: s = ""; break; \ - case PIPE_BULK: s = "-bulk"; break; \ - case PIPE_INTERRUPT: s = "-int"; break; \ - default: s = "-iso"; break; \ + case PIPE_CONTROL: \ + s = ""; \ + break; \ + case PIPE_BULK: \ + s = "-bulk"; \ + break; \ + case PIPE_INTERRUPT: \ + s = "-int"; \ + break; \ + default: \ + s = "-iso"; \ + break; \ }; s;}), urb->actual_length, urb->transfer_buffer_length); } @@ -1806,43 +2129,63 @@ static ssize_t show_urbs (struct device *dev, struct device_attribute *attr, char *buf) { struct usb_hcd *hcd = dev_get_drvdata (dev); - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); struct urbp *urbp; size_t size = 0; unsigned long flags; - spin_lock_irqsave (&dum->lock, flags); - list_for_each_entry (urbp, &dum->urbp_list, urbp_list) { + spin_lock_irqsave(&dum_hcd->dum->lock, flags); + list_for_each_entry(urbp, &dum_hcd->urbp_list, urbp_list) { size_t temp; temp = show_urb (buf, PAGE_SIZE - size, urbp->urb); buf += temp; size += temp; } - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return size; } static DEVICE_ATTR (urbs, S_IRUGO, show_urbs, NULL); -static int dummy_start (struct usb_hcd *hcd) +static int dummy_start_ss(struct dummy_hcd *dum_hcd) { - struct dummy *dum; + init_timer(&dum_hcd->timer); + dum_hcd->timer.function = dummy_timer; + dum_hcd->timer.data = (unsigned long)dum_hcd; + dum_hcd->rh_state = DUMMY_RH_RUNNING; + INIT_LIST_HEAD(&dum_hcd->urbp_list); + dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET; + dummy_hcd_to_hcd(dum_hcd)->state = HC_STATE_RUNNING; + dummy_hcd_to_hcd(dum_hcd)->uses_new_polling = 1; +#ifdef CONFIG_USB_OTG + dummy_hcd_to_hcd(dum_hcd)->self.otg_port = 1; +#endif + return 0; + + /* FIXME 'urbs' should be a per-device thing, maybe in usbcore */ + return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs); +} - dum = hcd_to_dummy (hcd); +static int dummy_start(struct usb_hcd *hcd) +{ + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); /* * MASTER side init ... we emulate a root hub that'll only ever * talk to one device (the slave side). Also appears in sysfs, * just like more familiar pci-based HCDs. */ - spin_lock_init (&dum->lock); - init_timer (&dum->timer); - dum->timer.function = dummy_timer; - dum->timer.data = (unsigned long) dum; - dum->rh_state = DUMMY_RH_RUNNING; + if (!usb_hcd_is_primary_hcd(hcd)) + return dummy_start_ss(dum_hcd); - INIT_LIST_HEAD (&dum->urbp_list); + spin_lock_init(&dum_hcd->dum->lock); + init_timer(&dum_hcd->timer); + dum_hcd->timer.function = dummy_timer; + dum_hcd->timer.data = (unsigned long)dum_hcd; + dum_hcd->rh_state = DUMMY_RH_RUNNING; + + INIT_LIST_HEAD(&dum_hcd->urbp_list); hcd->power_budget = POWER_BUDGET; hcd->state = HC_STATE_RUNNING; @@ -1853,18 +2196,17 @@ static int dummy_start (struct usb_hcd *hcd) #endif /* FIXME 'urbs' should be a per-device thing, maybe in usbcore */ - return device_create_file (dummy_dev(dum), &dev_attr_urbs); + return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs); } static void dummy_stop (struct usb_hcd *hcd) { struct dummy *dum; - dum = hcd_to_dummy (hcd); - - device_remove_file (dummy_dev(dum), &dev_attr_urbs); - usb_gadget_unregister_driver (dum->driver); - dev_info (dummy_dev(dum), "stopped\n"); + dum = (hcd_to_dummy_hcd(hcd))->dum; + device_remove_file(dummy_dev(hcd_to_dummy_hcd(hcd)), &dev_attr_urbs); + usb_gadget_unregister_driver(dum->driver); + dev_info(dummy_dev(hcd_to_dummy_hcd(hcd)), "stopped\n"); } /*-------------------------------------------------------------------------*/ @@ -1874,13 +2216,59 @@ static int dummy_h_get_frame (struct usb_hcd *hcd) return dummy_g_get_frame (NULL); } -static const struct hc_driver dummy_hcd = { +static int dummy_setup(struct usb_hcd *hcd) +{ + if (usb_hcd_is_primary_hcd(hcd)) { + the_controller.hs_hcd = hcd_to_dummy_hcd(hcd); + the_controller.hs_hcd->dum = &the_controller; + /* + * Mark the first roothub as being USB 2.0. + * The USB 3.0 roothub will be registered later by + * dummy_hcd_probe() + */ + hcd->speed = HCD_USB2; + hcd->self.root_hub->speed = USB_SPEED_HIGH; + } else { + the_controller.ss_hcd = hcd_to_dummy_hcd(hcd); + the_controller.ss_hcd->dum = &the_controller; + hcd->speed = HCD_USB3; + hcd->self.root_hub->speed = USB_SPEED_SUPER; + } + return 0; +} + +/* Change a group of bulk endpoints to support multiple stream IDs */ +int dummy_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint **eps, unsigned int num_eps, + unsigned int num_streams, gfp_t mem_flags) +{ + if (hcd->speed != HCD_USB3) + dev_dbg(dummy_dev(hcd_to_dummy_hcd(hcd)), + "%s() - ERROR! Not supported for USB2.0 roothub\n", + __func__); + return 0; +} + +/* Reverts a group of bulk endpoints back to not using stream IDs. */ +int dummy_free_streams(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint **eps, unsigned int num_eps, + gfp_t mem_flags) +{ + if (hcd->speed != HCD_USB3) + dev_dbg(dummy_dev(hcd_to_dummy_hcd(hcd)), + "%s() - ERROR! Not supported for USB2.0 roothub\n", + __func__); + return 0; +} + +static struct hc_driver dummy_hcd = { .description = (char *) driver_name, .product_desc = "Dummy host controller", - .hcd_priv_size = sizeof(struct dummy), + .hcd_priv_size = sizeof(struct dummy_hcd), - .flags = HCD_USB2, + .flags = HCD_USB3 | HCD_SHARED, + .reset = dummy_setup, .start = dummy_start, .stop = dummy_stop, @@ -1893,51 +2281,85 @@ static const struct hc_driver dummy_hcd = { .hub_control = dummy_hub_control, .bus_suspend = dummy_bus_suspend, .bus_resume = dummy_bus_resume, + + .alloc_streams = dummy_alloc_streams, + .free_streams = dummy_free_streams, }; static int dummy_hcd_probe(struct platform_device *pdev) { - struct usb_hcd *hcd; + struct usb_hcd *hs_hcd; + struct usb_hcd *ss_hcd; int retval; dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc); - hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev)); - if (!hcd) + if (!mod_data.is_super_speed) + dummy_hcd.flags = HCD_USB2; + hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev)); + if (!hs_hcd) return -ENOMEM; - the_controller = hcd_to_dummy (hcd); - hcd->has_tt = 1; + hs_hcd->has_tt = 1; - retval = usb_add_hcd(hcd, 0, 0); + retval = usb_add_hcd(hs_hcd, 0, 0); if (retval != 0) { - usb_put_hcd (hcd); - the_controller = NULL; + usb_put_hcd(hs_hcd); + return retval; + } + + if (mod_data.is_super_speed) { + ss_hcd = usb_create_shared_hcd(&dummy_hcd, &pdev->dev, + dev_name(&pdev->dev), hs_hcd); + if (!ss_hcd) { + retval = -ENOMEM; + goto dealloc_usb2_hcd; + } + + retval = usb_add_hcd(ss_hcd, 0, 0); + if (retval) + goto put_usb3_hcd; } + return 0; + +put_usb3_hcd: + usb_put_hcd(ss_hcd); +dealloc_usb2_hcd: + usb_put_hcd(hs_hcd); + the_controller.hs_hcd = the_controller.ss_hcd = NULL; return retval; } -static int dummy_hcd_remove (struct platform_device *pdev) +static int dummy_hcd_remove(struct platform_device *pdev) { - struct usb_hcd *hcd; + struct dummy *dum; + + dum = (hcd_to_dummy_hcd(platform_get_drvdata(pdev)))->dum; + + if (dum->ss_hcd) { + usb_remove_hcd(dummy_hcd_to_hcd(dum->ss_hcd)); + usb_put_hcd(dummy_hcd_to_hcd(dum->ss_hcd)); + } + + usb_remove_hcd(dummy_hcd_to_hcd(dum->hs_hcd)); + usb_put_hcd(dummy_hcd_to_hcd(dum->hs_hcd)); + + the_controller.hs_hcd = NULL; + the_controller.ss_hcd = NULL; - hcd = platform_get_drvdata (pdev); - usb_remove_hcd (hcd); - usb_put_hcd (hcd); - the_controller = NULL; return 0; } static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd; - struct dummy *dum; + struct dummy_hcd *dum_hcd; int rc = 0; dev_dbg (&pdev->dev, "%s\n", __func__); hcd = platform_get_drvdata (pdev); - dum = hcd_to_dummy (hcd); - if (dum->rh_state == DUMMY_RH_RUNNING) { + dum_hcd = hcd_to_dummy_hcd(hcd); + if (dum_hcd->rh_state == DUMMY_RH_RUNNING) { dev_warn(&pdev->dev, "Root hub isn't suspended!\n"); rc = -EBUSY; } else @@ -1980,6 +2402,9 @@ static int __init init (void) if (usb_disabled ()) return -ENODEV; + if (!mod_data.is_high_speed && mod_data.is_super_speed) + return -EINVAL; + the_hcd_pdev = platform_device_alloc(driver_name, -1); if (!the_hcd_pdev) return retval; @@ -1997,7 +2422,8 @@ static int __init init (void) retval = platform_device_add(the_hcd_pdev); if (retval < 0) goto err_add_hcd; - if (!the_controller) { + if (!the_controller.hs_hcd || + (!the_controller.ss_hcd && mod_data.is_super_speed)) { /* * The hcd was added successfully but its probe function failed * for some reason. |