diff options
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 432 |
1 files changed, 211 insertions, 221 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index fd4d86a57142..67573e5f2a18 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -42,25 +42,24 @@ #include <linux/scatterlist.h> #include <asm/byteorder.h> -#include <asm/io.h> +#include <linux/io.h> #include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> - #define DRIVER_DESC "USB Host+Gadget Emulator" #define DRIVER_VERSION "02 May 2005" #define POWER_BUDGET 500 /* in mA; use 8 for low-power port testing */ -static const char driver_name [] = "dummy_hcd"; -static const char driver_desc [] = "USB Host+Gadget Emulator"; +static const char driver_name[] = "dummy_hcd"; +static const char driver_desc[] = "USB Host+Gadget Emulator"; -static const char gadget_name [] = "dummy_udc"; +static const char gadget_name[] = "dummy_udc"; -MODULE_DESCRIPTION (DRIVER_DESC); -MODULE_AUTHOR ("David Brownell"); -MODULE_LICENSE ("GPL"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("David Brownell"); +MODULE_LICENSE("GPL"); struct dummy_hcd_module_parameters { bool is_super_speed; @@ -84,10 +83,10 @@ struct dummy_ep { struct usb_gadget *gadget; const struct usb_endpoint_descriptor *desc; struct usb_ep ep; - unsigned halted : 1; - unsigned wedged : 1; - unsigned already_seen : 1; - unsigned setup_stage : 1; + unsigned halted:1; + unsigned wedged:1; + unsigned already_seen:1; + unsigned setup_stage:1; unsigned stream_en:1; }; @@ -96,15 +95,15 @@ struct dummy_request { struct usb_request req; }; -static inline struct dummy_ep *usb_ep_to_dummy_ep (struct usb_ep *_ep) +static inline struct dummy_ep *usb_ep_to_dummy_ep(struct usb_ep *_ep) { - return container_of (_ep, struct dummy_ep, ep); + return container_of(_ep, struct dummy_ep, ep); } static inline struct dummy_request *usb_request_to_dummy_request (struct usb_request *_req) { - return container_of (_req, struct dummy_request, req); + return container_of(_req, struct dummy_request, req); } /*-------------------------------------------------------------------------*/ @@ -123,9 +122,9 @@ static inline struct dummy_request *usb_request_to_dummy_request * configurations, illegal or unsupported packet lengths, and so on. */ -static const char ep0name [] = "ep0"; +static const char ep0name[] = "ep0"; -static const char *const ep_name [] = { +static const char *const ep_name[] = { ep0name, /* everyone has ep0 */ /* act like a net2280: high speed, six configurable endpoints */ @@ -184,12 +183,12 @@ struct dummy { /* * SLAVE/GADGET side support */ - struct dummy_ep ep [DUMMY_ENDPOINTS]; + struct dummy_ep ep[DUMMY_ENDPOINTS]; int address; struct usb_gadget gadget; struct usb_gadget_driver *driver; struct dummy_request fifo_req; - u8 fifo_buf [FIFO_SIZE]; + u8 fifo_buf[FIFO_SIZE]; u16 devstatus; unsigned udc_suspended:1; unsigned pullup:1; @@ -216,14 +215,14 @@ static inline struct device *dummy_dev(struct dummy_hcd *dum) return dummy_hcd_to_hcd(dum)->self.controller; } -static inline struct device *udc_dev (struct dummy *dum) +static inline struct device *udc_dev(struct dummy *dum) { return dum->gadget.dev.parent; } -static inline struct dummy *ep_to_dummy (struct dummy_ep *ep) +static inline struct dummy *ep_to_dummy(struct dummy_ep *ep) { - return container_of (ep->gadget, struct dummy, gadget); + return container_of(ep->gadget, struct dummy, gadget); } static inline struct dummy_hcd *gadget_to_dummy_hcd(struct usb_gadget *gadget) @@ -235,9 +234,9 @@ static inline struct dummy_hcd *gadget_to_dummy_hcd(struct usb_gadget *gadget) return dum->hs_hcd; } -static inline struct dummy *gadget_dev_to_dummy (struct device *dev) +static inline struct dummy *gadget_dev_to_dummy(struct device *dev) { - return container_of (dev, struct dummy, gadget.dev); + return container_of(dev, struct dummy, gadget.dev); } static struct dummy the_controller; @@ -247,24 +246,23 @@ static struct dummy the_controller; /* SLAVE/GADGET SIDE UTILITY ROUTINES */ /* called with spinlock held */ -static void nuke (struct dummy *dum, struct dummy_ep *ep) +static void nuke(struct dummy *dum, struct dummy_ep *ep) { - while (!list_empty (&ep->queue)) { + while (!list_empty(&ep->queue)) { struct dummy_request *req; - req = list_entry (ep->queue.next, struct dummy_request, queue); - list_del_init (&req->queue); + req = list_entry(ep->queue.next, struct dummy_request, queue); + list_del_init(&req->queue); req->req.status = -ESHUTDOWN; - spin_unlock (&dum->lock); - req->req.complete (&ep->ep, &req->req); - spin_lock (&dum->lock); + spin_unlock(&dum->lock); + req->req.complete(&ep->ep, &req->req); + spin_lock(&dum->lock); } } /* caller must hold lock */ -static void -stop_activity (struct dummy *dum) +static void stop_activity(struct dummy *dum) { struct dummy_ep *ep; @@ -274,8 +272,8 @@ stop_activity (struct dummy *dum) /* The timer is left running so that outstanding URBs can fail */ /* nuke any pending requests first, so driver i/o is quiesced */ - list_for_each_entry (ep, &dum->gadget.ep_list, ep.ep_list) - nuke (dum, ep); + list_for_each_entry(ep, &dum->gadget.ep_list, ep.ep_list) + nuke(dum, ep); /* driver now does any non-usb quiescing necessary */ } @@ -410,8 +408,8 @@ static void set_link_state(struct dummy_hcd *dum_hcd) #define is_enabled(dum) \ (dum->port_status & USB_PORT_STAT_ENABLE) -static int -dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) +static int dummy_enable(struct usb_ep *_ep, + const struct usb_endpoint_descriptor *desc) { struct dummy *dum; struct dummy_hcd *dum_hcd; @@ -419,11 +417,11 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) unsigned max; int retval; - ep = usb_ep_to_dummy_ep (_ep); + ep = usb_ep_to_dummy_ep(_ep); if (!_ep || !desc || ep->desc || _ep->name == ep0name || desc->bDescriptorType != USB_DT_ENDPOINT) return -EINVAL; - dum = ep_to_dummy (ep); + dum = ep_to_dummy(ep); if (!dum->driver) return -ESHUTDOWN; @@ -449,8 +447,8 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) retval = -EINVAL; switch (usb_endpoint_type(desc)) { case USB_ENDPOINT_XFER_BULK: - if (strstr (ep->ep.name, "-iso") - || strstr (ep->ep.name, "-int")) { + if (strstr(ep->ep.name, "-iso") + || strstr(ep->ep.name, "-int")) { goto done; } switch (dum->gadget.speed) { @@ -472,7 +470,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) } break; case USB_ENDPOINT_XFER_INT: - if (strstr (ep->ep.name, "-iso")) /* bulk is ok */ + if (strstr(ep->ep.name, "-iso")) /* bulk is ok */ goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { @@ -492,8 +490,8 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) } break; case USB_ENDPOINT_XFER_ISOC: - if (strstr (ep->ep.name, "-bulk") - || strstr (ep->ep.name, "-int")) + if (strstr(ep->ep.name, "-bulk") + || strstr(ep->ep.name, "-int")) goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { @@ -556,68 +554,65 @@ done: return retval; } -static int dummy_disable (struct usb_ep *_ep) +static int dummy_disable(struct usb_ep *_ep) { struct dummy_ep *ep; struct dummy *dum; unsigned long flags; int retval; - ep = usb_ep_to_dummy_ep (_ep); + ep = usb_ep_to_dummy_ep(_ep); if (!_ep || !ep->desc || _ep->name == ep0name) return -EINVAL; - dum = ep_to_dummy (ep); + dum = ep_to_dummy(ep); - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum->lock, flags); ep->desc = NULL; ep->stream_en = 0; retval = 0; - nuke (dum, ep); - spin_unlock_irqrestore (&dum->lock, flags); + nuke(dum, ep); + spin_unlock_irqrestore(&dum->lock, flags); - dev_dbg (udc_dev(dum), "disabled %s\n", _ep->name); + dev_dbg(udc_dev(dum), "disabled %s\n", _ep->name); return retval; } -static struct usb_request * -dummy_alloc_request (struct usb_ep *_ep, gfp_t mem_flags) +static struct usb_request *dummy_alloc_request(struct usb_ep *_ep, + gfp_t mem_flags) { struct dummy_ep *ep; struct dummy_request *req; if (!_ep) return NULL; - ep = usb_ep_to_dummy_ep (_ep); + ep = usb_ep_to_dummy_ep(_ep); req = kzalloc(sizeof(*req), mem_flags); if (!req) return NULL; - INIT_LIST_HEAD (&req->queue); + INIT_LIST_HEAD(&req->queue); return &req->req; } -static void -dummy_free_request (struct usb_ep *_ep, struct usb_request *_req) +static void dummy_free_request(struct usb_ep *_ep, struct usb_request *_req) { struct dummy_ep *ep; struct dummy_request *req; - ep = usb_ep_to_dummy_ep (_ep); + ep = usb_ep_to_dummy_ep(_ep); if (!ep || !_req || (!ep->desc && _ep->name != ep0name)) return; - req = usb_request_to_dummy_request (_req); - WARN_ON (!list_empty (&req->queue)); - kfree (req); + req = usb_request_to_dummy_request(_req); + WARN_ON(!list_empty(&req->queue)); + kfree(req); } -static void -fifo_complete (struct usb_ep *ep, struct usb_request *req) +static void fifo_complete(struct usb_ep *ep, struct usb_request *req) { } -static int -dummy_queue (struct usb_ep *_ep, struct usb_request *_req, +static int dummy_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t mem_flags) { struct dummy_ep *ep; @@ -626,49 +621,48 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, struct dummy_hcd *dum_hcd; unsigned long flags; - req = usb_request_to_dummy_request (_req); - if (!_req || !list_empty (&req->queue) || !_req->complete) + req = usb_request_to_dummy_request(_req); + if (!_req || !list_empty(&req->queue) || !_req->complete) return -EINVAL; - ep = usb_ep_to_dummy_ep (_ep); + ep = usb_ep_to_dummy_ep(_ep); if (!_ep || (!ep->desc && _ep->name != ep0name)) return -EINVAL; - dum = ep_to_dummy (ep); + dum = ep_to_dummy(ep); dum_hcd = gadget_to_dummy_hcd(&dum->gadget); if (!dum->driver || !is_enabled(dum_hcd)) return -ESHUTDOWN; #if 0 - dev_dbg (udc_dev(dum), "ep %p queue req %p to %s, len %d buf %p\n", + dev_dbg(udc_dev(dum), "ep %p queue req %p to %s, len %d buf %p\n", ep, _req, _ep->name, _req->length, _req->buf); #endif - _req->status = -EINPROGRESS; _req->actual = 0; - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum->lock, flags); /* implement an emulated single-request FIFO */ if (ep->desc && (ep->desc->bEndpointAddress & USB_DIR_IN) && - list_empty (&dum->fifo_req.queue) && - list_empty (&ep->queue) && + list_empty(&dum->fifo_req.queue) && + list_empty(&ep->queue) && _req->length <= FIFO_SIZE) { req = &dum->fifo_req; req->req = *_req; req->req.buf = dum->fifo_buf; - memcpy (dum->fifo_buf, _req->buf, _req->length); + memcpy(dum->fifo_buf, _req->buf, _req->length); req->req.context = dum; req->req.complete = fifo_complete; list_add_tail(&req->queue, &ep->queue); - spin_unlock (&dum->lock); + spin_unlock(&dum->lock); _req->actual = _req->length; _req->status = 0; - _req->complete (_ep, _req); - spin_lock (&dum->lock); + _req->complete(_ep, _req); + spin_lock(&dum->lock); } else list_add_tail(&req->queue, &ep->queue); - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum->lock, flags); /* real hardware would likely enable transfers here, in case * it'd been left NAKing. @@ -676,7 +670,7 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, return 0; } -static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req) +static int dummy_dequeue(struct usb_ep *_ep, struct usb_request *_req) { struct dummy_ep *ep; struct dummy *dum; @@ -686,31 +680,31 @@ static int dummy_dequeue (struct usb_ep *_ep, struct usb_request *_req) if (!_ep || !_req) return retval; - ep = usb_ep_to_dummy_ep (_ep); - dum = ep_to_dummy (ep); + ep = usb_ep_to_dummy_ep(_ep); + dum = ep_to_dummy(ep); if (!dum->driver) return -ESHUTDOWN; - local_irq_save (flags); - spin_lock (&dum->lock); - list_for_each_entry (req, &ep->queue, queue) { + local_irq_save(flags); + spin_lock(&dum->lock); + list_for_each_entry(req, &ep->queue, queue) { if (&req->req == _req) { - list_del_init (&req->queue); + list_del_init(&req->queue); _req->status = -ECONNRESET; retval = 0; break; } } - spin_unlock (&dum->lock); + spin_unlock(&dum->lock); if (retval == 0) { - dev_dbg (udc_dev(dum), + dev_dbg(udc_dev(dum), "dequeued req %p from %s, len %d buf %p\n", req, _ep->name, _req->length, _req->buf); - _req->complete (_ep, _req); + _req->complete(_ep, _req); } - local_irq_restore (flags); + local_irq_restore(flags); return retval; } @@ -722,14 +716,14 @@ dummy_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) if (!_ep) return -EINVAL; - ep = usb_ep_to_dummy_ep (_ep); - dum = ep_to_dummy (ep); + ep = usb_ep_to_dummy_ep(_ep); + dum = ep_to_dummy(ep); if (!dum->driver) return -ESHUTDOWN; if (!value) ep->halted = ep->wedged = 0; else if (ep->desc && (ep->desc->bEndpointAddress & USB_DIR_IN) && - !list_empty (&ep->queue)) + !list_empty(&ep->queue)) return -EAGAIN; else { ep->halted = 1; @@ -770,15 +764,15 @@ static const struct usb_ep_ops dummy_ep_ops = { /*-------------------------------------------------------------------------*/ /* there are both host and device side versions of this call ... */ -static int dummy_g_get_frame (struct usb_gadget *_gadget) +static int dummy_g_get_frame(struct usb_gadget *_gadget) { struct timeval tv; - do_gettimeofday (&tv); + do_gettimeofday(&tv); return tv.tv_usec / 1000; } -static int dummy_wakeup (struct usb_gadget *_gadget) +static int dummy_wakeup(struct usb_gadget *_gadget) { struct dummy_hcd *dum_hcd; @@ -801,11 +795,11 @@ static int dummy_wakeup (struct usb_gadget *_gadget) return 0; } -static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value) +static int dummy_set_selfpowered(struct usb_gadget *_gadget, int value) { struct dummy *dum; - dum = (gadget_to_dummy_hcd(_gadget))->dum; + dum = gadget_to_dummy_hcd(_gadget)->dum; if (value) dum->devstatus |= (1 << USB_DEVICE_SELF_POWERED); else @@ -821,7 +815,7 @@ static void dummy_udc_update_ep0(struct dummy *dum) dum->ep[0].ep.maxpacket = 64; } -static int dummy_pullup (struct usb_gadget *_gadget, int value) +static int dummy_pullup(struct usb_gadget *_gadget, int value) { struct dummy_hcd *dum_hcd; struct dummy *dum; @@ -846,10 +840,10 @@ static int dummy_pullup (struct usb_gadget *_gadget, int value) } dum_hcd = gadget_to_dummy_hcd(_gadget); - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum->lock, flags); dum->pullup = (value != 0); set_link_state(dum_hcd); - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum->lock, flags); usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; @@ -872,16 +866,16 @@ static const struct usb_gadget_ops dummy_ops = { /*-------------------------------------------------------------------------*/ /* "function" sysfs attribute */ -static ssize_t -show_function (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_function(struct device *dev, struct device_attribute *attr, + char *buf) { - struct dummy *dum = gadget_dev_to_dummy (dev); + struct dummy *dum = gadget_dev_to_dummy(dev); if (!dum->driver || !dum->driver->function) return 0; - return scnprintf (buf, PAGE_SIZE, "%s\n", dum->driver->function); + return scnprintf(buf, PAGE_SIZE, "%s\n", dum->driver->function); } -static DEVICE_ATTR (function, S_IRUGO, show_function, NULL); +static DEVICE_ATTR(function, S_IRUGO, show_function, NULL); /*-------------------------------------------------------------------------*/ @@ -916,7 +910,7 @@ static int dummy_udc_start(struct usb_gadget *g, dum->devstatus = 0; dum->driver = driver; - dev_dbg (udc_dev(dum), "binding gadget driver '%s'\n", + dev_dbg(udc_dev(dum), "binding gadget driver '%s'\n", driver->driver.name); return 0; } @@ -927,7 +921,7 @@ static int dummy_udc_stop(struct usb_gadget *g, 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", + dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", driver->driver.name); dum->driver = NULL; @@ -940,8 +934,7 @@ static int dummy_udc_stop(struct usb_gadget *g, /* The gadget structure is stored inside the hcd structure and will be * released along with it. */ -static void -dummy_gadget_release (struct device *dev) +static void dummy_gadget_release(struct device *dev) { return; } @@ -978,7 +971,7 @@ static void init_dummy_udc_hw(struct dummy *dum) #endif } -static int dummy_udc_probe (struct platform_device *pdev) +static int dummy_udc_probe(struct platform_device *pdev) { struct dummy *dum = &the_controller; int rc; @@ -990,7 +983,7 @@ static int dummy_udc_probe (struct platform_device *pdev) dev_set_name(&dum->gadget.dev, "gadget"); dum->gadget.dev.parent = &pdev->dev; dum->gadget.dev.release = dummy_gadget_release; - rc = device_register (&dum->gadget.dev); + rc = device_register(&dum->gadget.dev); if (rc < 0) { put_device(&dum->gadget.dev); return rc; @@ -1002,7 +995,7 @@ static int dummy_udc_probe (struct platform_device *pdev) if (rc < 0) goto err_udc; - rc = device_create_file (&dum->gadget.dev, &dev_attr_function); + rc = device_create_file(&dum->gadget.dev, &dev_attr_function); if (rc < 0) goto err_dev; platform_set_drvdata(pdev, dum); @@ -1015,14 +1008,14 @@ err_udc: return rc; } -static int dummy_udc_remove (struct platform_device *pdev) +static int dummy_udc_remove(struct platform_device *pdev) { - struct dummy *dum = platform_get_drvdata (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); + platform_set_drvdata(pdev, NULL); + device_remove_file(&dum->gadget.dev, &dev_attr_function); + device_unregister(&dum->gadget.dev); return 0; } @@ -1167,7 +1160,7 @@ static int dummy_validate_stream(struct dummy_hcd *dum_hcd, struct urb *urb) return 0; } -static int dummy_urb_enqueue ( +static int dummy_urb_enqueue( struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags @@ -1177,7 +1170,7 @@ static int dummy_urb_enqueue ( unsigned long flags; int rc; - urbp = kmalloc (sizeof *urbp, mem_flags); + urbp = kmalloc(sizeof *urbp, mem_flags); if (!urbp) return -ENOMEM; urbp->urb = urb; @@ -1206,7 +1199,7 @@ static int dummy_urb_enqueue ( list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list); urb->hcpriv = urbp; - if (usb_pipetype (urb->pipe) == PIPE_CONTROL) + if (usb_pipetype(urb->pipe) == PIPE_CONTROL) urb->error_count = 1; /* mark as a new urb */ /* kick the scheduler, it'll do the rest */ @@ -1313,7 +1306,7 @@ static int transfer(struct dummy_hcd *dum_hcd, struct urb *urb, top: /* if there's no request queued, the device is NAKing; return */ - list_for_each_entry (req, &ep->queue, queue) { + list_for_each_entry(req, &ep->queue, queue) { unsigned host_len, dev_len, len; int is_short, to_host; int rescan = 0; @@ -1332,18 +1325,18 @@ top: */ host_len = urb->transfer_buffer_length - urb->actual_length; dev_len = req->req.length - req->req.actual; - len = min (host_len, dev_len); + len = min(host_len, dev_len); /* FIXME update emulated data toggle too */ - to_host = usb_pipein (urb->pipe); - if (unlikely (len == 0)) + to_host = usb_pipein(urb->pipe); + if (unlikely(len == 0)) is_short = 1; else { /* not enough bandwidth left? */ if (limit < ep->ep.maxpacket && limit < len) break; - len = min (len, (unsigned) limit); + len = min_t(unsigned, len, limit); if (len == 0) break; @@ -1404,11 +1397,11 @@ top: /* device side completion --> continuable */ if (req->req.status != -EINPROGRESS) { - list_del_init (&req->queue); + list_del_init(&req->queue); - spin_unlock (&dum->lock); - req->req.complete (&ep->ep, &req->req); - spin_lock (&dum->lock); + spin_unlock(&dum->lock); + req->req.complete(&ep->ep, &req->req); + spin_lock(&dum->lock); /* requests might have been unlinked... */ rescan = 1; @@ -1425,7 +1418,7 @@ top: return limit; } -static int periodic_bytes (struct dummy *dum, struct dummy_ep *ep) +static int periodic_bytes(struct dummy *dum, struct dummy_ep *ep) { int limit = ep->ep.maxpacket; @@ -1461,7 +1454,7 @@ static int periodic_bytes (struct dummy *dum, struct dummy_ep *ep) USB_PORT_STAT_SUSPEND)) \ == (USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE)) -static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) +static struct dummy_ep *find_endpoint(struct dummy *dum, u8 address) { int i; @@ -1469,9 +1462,9 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) dum->ss_hcd : dum->hs_hcd))) return NULL; if ((address & ~USB_DIR_IN) == 0) - return &dum->ep [0]; + return &dum->ep[0]; for (i = 1; i < DUMMY_ENDPOINTS; i++) { - struct dummy_ep *ep = &dum->ep [i]; + struct dummy_ep *ep = &dum->ep[i]; if (!ep->desc) continue; @@ -1701,19 +1694,19 @@ static void dummy_timer(unsigned long _dum_hcd) /* FIXME if HZ != 1000 this will probably misbehave ... */ /* look at each urb queued by the host side driver */ - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum->lock, flags); if (!dum_hcd->udev) { dev_err(dummy_dev(dum_hcd), "timer fired with no URBs pending?\n"); - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum->lock, flags); return; } for (i = 0; i < DUMMY_ENDPOINTS; i++) { - if (!ep_name [i]) + if (!ep_name[i]) break; - dum->ep [i].already_seen = 0; + dum->ep[i].already_seen = 0; } restart: @@ -1730,7 +1723,7 @@ restart: goto return_urb; else if (dum_hcd->rh_state != DUMMY_RH_RUNNING) continue; - type = usb_pipetype (urb->pipe); + type = usb_pipetype(urb->pipe); /* used up this frame's non-periodic bandwidth? * FIXME there's infinite bandwidth for control and @@ -1741,7 +1734,7 @@ restart: /* find the gadget's ep for this request (if configured) */ address = usb_pipeendpoint (urb->pipe); - if (usb_pipein (urb->pipe)) + if (usb_pipein(urb->pipe)) address |= USB_DIR_IN; ep = find_endpoint(dum, address); if (!ep) { @@ -1756,7 +1749,7 @@ restart: if (ep->already_seen) continue; ep->already_seen = 1; - if (ep == &dum->ep [0] && urb->error_count) { + if (ep == &dum->ep[0] && urb->error_count) { ep->setup_stage = 1; /* a new urb */ urb->error_count = 0; } @@ -1770,21 +1763,21 @@ restart: /* FIXME make sure both ends agree on maxpacket */ /* handle control requests */ - if (ep == &dum->ep [0] && ep->setup_stage) { + if (ep == &dum->ep[0] && ep->setup_stage) { struct usb_ctrlrequest setup; int value = 1; - setup = *(struct usb_ctrlrequest*) urb->setup_packet; + setup = *(struct usb_ctrlrequest *) urb->setup_packet; /* paranoia, in case of stale queued data */ - list_for_each_entry (req, &ep->queue, queue) { - list_del_init (&req->queue); + list_for_each_entry(req, &ep->queue, queue) { + list_del_init(&req->queue); req->req.status = -EOVERFLOW; - dev_dbg (udc_dev(dum), "stale req = %p\n", + dev_dbg(udc_dev(dum), "stale req = %p\n", req); - spin_unlock (&dum->lock); - req->req.complete (&ep->ep, &req->req); - spin_lock (&dum->lock); + spin_unlock(&dum->lock); + req->req.complete(&ep->ep, &req->req); + spin_lock(&dum->lock); ep->already_seen = 0; goto restart; } @@ -1804,10 +1797,10 @@ restart: * until setup() returns; no reentrancy issues etc. */ if (value > 0) { - spin_unlock (&dum->lock); - value = dum->driver->setup (&dum->gadget, + spin_unlock(&dum->lock); + value = dum->driver->setup(&dum->gadget, &setup); - spin_lock (&dum->lock); + spin_lock(&dum->lock); if (value >= 0) { /* no delays (max 64KB data stage) */ @@ -1819,7 +1812,7 @@ restart: if (value < 0) { if (value != -EOPNOTSUPP) - dev_dbg (udc_dev(dum), + dev_dbg(udc_dev(dum), "setup --> %d\n", value); status = -EPIPE; @@ -1831,14 +1824,14 @@ restart: /* non-control requests */ limit = total; - switch (usb_pipetype (urb->pipe)) { + switch (usb_pipetype(urb->pipe)) { case PIPE_ISOCHRONOUS: /* FIXME is it urb->interval since the last xfer? * use urb->iso_frame_desc[i]. * complete whether or not ep has requests queued. * report random errors, to debug drivers. */ - limit = max (limit, periodic_bytes (dum, ep)); + limit = max(limit, periodic_bytes(dum, ep)); status = -ENOSYS; break; @@ -1846,12 +1839,11 @@ restart: /* FIXME is it urb->interval since the last xfer? * this almost certainly polls too fast. */ - limit = max (limit, periodic_bytes (dum, ep)); + limit = max(limit, periodic_bytes(dum, ep)); /* FALLTHROUGH */ - // case PIPE_BULK: case PIPE_CONTROL: default: - treat_control_like_bulk: +treat_control_like_bulk: ep->last_io = jiffies; total = transfer(dum_hcd, urb, ep, limit, &status); break; @@ -1862,15 +1854,15 @@ restart: continue; return_urb: - list_del (&urbp->urbp_list); - kfree (urbp); + list_del(&urbp->urbp_list); + kfree(urbp); if (ep) ep->already_seen = ep->setup_stage = 0; usb_hcd_unlink_urb_from_ep(dummy_hcd_to_hcd(dum_hcd), urb); - spin_unlock (&dum->lock); + spin_unlock(&dum->lock); usb_hcd_giveback_urb(dummy_hcd_to_hcd(dum_hcd), urb, status); - spin_lock (&dum->lock); + spin_lock(&dum->lock); goto restart; } @@ -1883,7 +1875,7 @@ return_urb: mod_timer(&dum_hcd->timer, jiffies + msecs_to_jiffies(1)); } - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum->lock, flags); } /*-------------------------------------------------------------------------*/ @@ -1895,7 +1887,7 @@ return_urb: | USB_PORT_STAT_C_OVERCURRENT \ | USB_PORT_STAT_C_RESET) << 16) -static int dummy_hub_status (struct usb_hcd *hcd, char *buf) +static int dummy_hub_status(struct usb_hcd *hcd, char *buf) { struct dummy_hcd *dum_hcd; unsigned long flags; @@ -1919,7 +1911,7 @@ static int dummy_hub_status (struct usb_hcd *hcd, char *buf) dum_hcd->port_status); retval = 1; if (dum_hcd->rh_state == DUMMY_RH_SUSPENDED) - usb_hcd_resume_root_hub (hcd); + usb_hcd_resume_root_hub(hcd); } done: spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); @@ -1938,10 +1930,9 @@ ss_hub_descriptor(struct usb_hub_descriptor *desc) desc->u.ss.DeviceRemovable = 0xffff; } -static inline void -hub_descriptor (struct usb_hub_descriptor *desc) +static inline void hub_descriptor(struct usb_hub_descriptor *desc) { - memset (desc, 0, sizeof *desc); + memset(desc, 0, sizeof *desc); desc->bDescriptorType = 0x29; desc->bDescLength = 9; desc->wHubCharacteristics = cpu_to_le16(0x0001); @@ -1950,7 +1941,7 @@ hub_descriptor (struct usb_hub_descriptor *desc) desc->u.hs.DeviceRemovable[1] = 0xff; } -static int dummy_hub_control ( +static int dummy_hub_control( struct usb_hcd *hcd, u16 typeReq, u16 wValue, @@ -2018,7 +2009,7 @@ static int dummy_hub_control ( hub_descriptor((struct usb_hub_descriptor *) buf); break; case GetHubStatus: - *(__le32 *) buf = cpu_to_le32 (0); + *(__le32 *) buf = cpu_to_le32(0); break; case GetPortStatus: if (wIndex != 1) @@ -2060,8 +2051,8 @@ static int dummy_hub_control ( } } 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); + ((__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; @@ -2195,15 +2186,15 @@ error: spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); if ((dum_hcd->port_status & PORT_C_MASK) != 0) - usb_hcd_poll_rh_status (hcd); + usb_hcd_poll_rh_status(hcd); return retval; } -static int dummy_bus_suspend (struct usb_hcd *hcd) +static int dummy_bus_suspend(struct usb_hcd *hcd) { struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); - dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); + dev_dbg(&hcd->self.root_hub->dev, "%s\n", __func__); spin_lock_irq(&dum_hcd->dum->lock); dum_hcd->rh_state = DUMMY_RH_SUSPENDED; @@ -2213,12 +2204,12 @@ static int dummy_bus_suspend (struct usb_hcd *hcd) return 0; } -static int dummy_bus_resume (struct usb_hcd *hcd) +static int dummy_bus_resume(struct usb_hcd *hcd) { struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); int rc = 0; - dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); + dev_dbg(&hcd->self.root_hub->dev, "%s\n", __func__); spin_lock_irq(&dum_hcd->dum->lock); if (!HCD_HW_ACCESSIBLE(hcd)) { @@ -2236,55 +2227,54 @@ static int dummy_bus_resume (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -static inline ssize_t -show_urb (char *buf, size_t size, struct urb *urb) +static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb) { - int ep = usb_pipeendpoint (urb->pipe); + int ep = usb_pipeendpoint(urb->pipe); - return snprintf (buf, size, + return snprintf(buf, size, "urb/%p %s ep%d%s%s len %d/%d\n", urb, ({ char *s; - switch (urb->dev->speed) { - case USB_SPEED_LOW: + switch (urb->dev->speed) { + case USB_SPEED_LOW: s = "ls"; break; - case USB_SPEED_FULL: + case USB_SPEED_FULL: s = "fs"; break; - case USB_SPEED_HIGH: + case USB_SPEED_HIGH: s = "hs"; break; - case USB_SPEED_SUPER: + case USB_SPEED_SUPER: s = "ss"; break; - default: + default: s = "?"; break; }; s; }), - ep, ep ? (usb_pipein (urb->pipe) ? "in" : "out") : "", + ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "", ({ char *s; \ - switch (usb_pipetype (urb->pipe)) { \ - case PIPE_CONTROL: \ + switch (usb_pipetype(urb->pipe)) { \ + case PIPE_CONTROL: \ s = ""; \ break; \ - case PIPE_BULK: \ + case PIPE_BULK: \ s = "-bulk"; \ break; \ - case PIPE_INTERRUPT: \ + case PIPE_INTERRUPT: \ s = "-int"; \ break; \ - default: \ + default: \ s = "-iso"; \ break; \ - }; s;}), + }; s; }), urb->actual_length, urb->transfer_buffer_length); } -static ssize_t -show_urbs (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_urbs(struct device *dev, struct device_attribute *attr, + char *buf) { - struct usb_hcd *hcd = dev_get_drvdata (dev); + struct usb_hcd *hcd = dev_get_drvdata(dev); struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); struct urbp *urbp; size_t size = 0; @@ -2294,7 +2284,7 @@ show_urbs (struct device *dev, struct device_attribute *attr, char *buf) list_for_each_entry(urbp, &dum_hcd->urbp_list, urbp_list) { size_t temp; - temp = show_urb (buf, PAGE_SIZE - size, urbp->urb); + temp = show_urb(buf, PAGE_SIZE - size, urbp->urb); buf += temp; size += temp; } @@ -2302,7 +2292,7 @@ show_urbs (struct device *dev, struct device_attribute *attr, char *buf) return size; } -static DEVICE_ATTR (urbs, S_IRUGO, show_urbs, NULL); +static DEVICE_ATTR(urbs, S_IRUGO, show_urbs, NULL); static int dummy_start_ss(struct dummy_hcd *dum_hcd) { @@ -2356,11 +2346,11 @@ static int dummy_start(struct usb_hcd *hcd) return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs); } -static void dummy_stop (struct usb_hcd *hcd) +static void dummy_stop(struct usb_hcd *hcd) { struct dummy *dum; - dum = (hcd_to_dummy_hcd(hcd))->dum; + 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"); @@ -2368,9 +2358,9 @@ static void dummy_stop (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -static int dummy_h_get_frame (struct usb_hcd *hcd) +static int dummy_h_get_frame(struct usb_hcd *hcd) { - return dummy_g_get_frame (NULL); + return dummy_g_get_frame(NULL); } static int dummy_setup(struct usb_hcd *hcd) @@ -2485,13 +2475,13 @@ static struct hc_driver dummy_hcd = { .start = dummy_start, .stop = dummy_stop, - .urb_enqueue = dummy_urb_enqueue, - .urb_dequeue = dummy_urb_dequeue, + .urb_enqueue = dummy_urb_enqueue, + .urb_dequeue = dummy_urb_dequeue, - .get_frame_number = dummy_h_get_frame, + .get_frame_number = dummy_h_get_frame, - .hub_status_data = dummy_hub_status, - .hub_control = dummy_hub_control, + .hub_status_data = dummy_hub_status, + .hub_control = dummy_hub_control, .bus_suspend = dummy_bus_suspend, .bus_resume = dummy_bus_resume, @@ -2546,7 +2536,7 @@ static int dummy_hcd_remove(struct platform_device *pdev) { struct dummy *dum; - dum = (hcd_to_dummy_hcd(platform_get_drvdata(pdev)))->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)); @@ -2562,15 +2552,15 @@ static int dummy_hcd_remove(struct platform_device *pdev) return 0; } -static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state) +static int dummy_hcd_suspend(struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd; struct dummy_hcd *dum_hcd; int rc = 0; - dev_dbg (&pdev->dev, "%s\n", __func__); + dev_dbg(&pdev->dev, "%s\n", __func__); - hcd = platform_get_drvdata (pdev); + hcd = platform_get_drvdata(pdev); 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"); @@ -2580,15 +2570,15 @@ static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state) return rc; } -static int dummy_hcd_resume (struct platform_device *pdev) +static int dummy_hcd_resume(struct platform_device *pdev) { struct usb_hcd *hcd; - dev_dbg (&pdev->dev, "%s\n", __func__); + dev_dbg(&pdev->dev, "%s\n", __func__); - hcd = platform_get_drvdata (pdev); + hcd = platform_get_drvdata(pdev); set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - usb_hcd_poll_rh_status (hcd); + usb_hcd_poll_rh_status(hcd); return 0; } @@ -2608,11 +2598,11 @@ static struct platform_driver dummy_hcd_driver = { static struct platform_device *the_udc_pdev; static struct platform_device *the_hcd_pdev; -static int __init init (void) +static int __init init(void) { int retval = -ENOMEM; - if (usb_disabled ()) + if (usb_disabled()) return -ENODEV; if (!mod_data.is_high_speed && mod_data.is_super_speed) @@ -2671,13 +2661,13 @@ err_alloc_udc: platform_device_put(the_hcd_pdev); return retval; } -module_init (init); +module_init(init); -static void __exit cleanup (void) +static void __exit cleanup(void) { platform_device_unregister(the_udc_pdev); platform_device_unregister(the_hcd_pdev); platform_driver_unregister(&dummy_udc_driver); platform_driver_unregister(&dummy_hcd_driver); } -module_exit (cleanup); +module_exit(cleanup); |