#define DEBUG
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
/* or like sa1100: two fixed function endpoints */
"ep1out-bulk", "ep2in-bulk",
};
-#define DUMMY_ENDPOINTS (sizeof(ep_name)/sizeof(char *))
+#define DUMMY_ENDPOINTS ARRAY_SIZE(ep_name)
/*-------------------------------------------------------------------------*/
return NULL;
ep = usb_ep_to_dummy_ep (_ep);
- req = kmalloc (sizeof *req, mem_flags);
+ req = kzalloc(sizeof(*req), mem_flags);
if (!req)
return NULL;
- memset (req, 0, sizeof *req);
INIT_LIST_HEAD (&req->queue);
return &req->req;
}
if (!dum->driver)
return -ESHUTDOWN;
- spin_lock_irqsave (&dum->lock, flags);
+ 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);
break;
}
}
- spin_unlock_irqrestore (&dum->lock, flags);
+ spin_unlock (&dum->lock);
if (retval == 0) {
dev_dbg (udc_dev(dum),
req, _ep->name, _req->length, _req->buf);
_req->complete (_ep, _req);
}
+ local_irq_restore (flags);
return retval;
}
dum = hcd_to_dummy (hcd);
spin_lock_irqsave (&dum->lock, flags);
- if (hcd->state != HC_STATE_RUNNING)
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
goto done;
if (dum->resuming && time_after_eq (jiffies, dum->re_timeout)) {
int retval = 0;
unsigned long flags;
- if (hcd->state != HC_STATE_RUNNING)
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
return -ETIMEDOUT;
dum = hcd_to_dummy (hcd);
{
struct dummy *dum = hcd_to_dummy (hcd);
+ dev_dbg (&hcd->self.root_hub->dev, "%s\n", __FUNCTION__);
+
spin_lock_irq (&dum->lock);
dum->rh_state = DUMMY_RH_SUSPENDED;
set_link_state (dum);
+ hcd->state = HC_STATE_SUSPENDED;
spin_unlock_irq (&dum->lock);
return 0;
}
static int dummy_bus_resume (struct usb_hcd *hcd)
{
struct dummy *dum = hcd_to_dummy (hcd);
+ int rc = 0;
+
+ dev_dbg (&hcd->self.root_hub->dev, "%s\n", __FUNCTION__);
spin_lock_irq (&dum->lock);
- dum->rh_state = DUMMY_RH_RUNNING;
- set_link_state (dum);
- if (!list_empty(&dum->urbp_list))
- mod_timer (&dum->timer, jiffies);
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
+ dev_warn (&hcd->self.root_hub->dev, "HC isn't running!\n");
+ rc = -ENODEV;
+ } else {
+ dum->rh_state = DUMMY_RH_RUNNING;
+ set_link_state (dum);
+ if (!list_empty(&dum->urbp_list))
+ mod_timer (&dum->timer, jiffies);
+ hcd->state = HC_STATE_RUNNING;
+ }
spin_unlock_irq (&dum->lock);
- return 0;
+ return rc;
}
/*-------------------------------------------------------------------------*/
static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state)
{
struct usb_hcd *hcd;
+ struct dummy *dum;
+ int rc = 0;
dev_dbg (&pdev->dev, "%s\n", __FUNCTION__);
- hcd = platform_get_drvdata (pdev);
- hcd->state = HC_STATE_SUSPENDED;
- return 0;
+ hcd = platform_get_drvdata (pdev);
+ dum = hcd_to_dummy (hcd);
+ if (dum->rh_state == DUMMY_RH_RUNNING) {
+ dev_warn(&pdev->dev, "Root hub isn't suspended!\n");
+ rc = -EBUSY;
+ } else
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ return rc;
}
static int dummy_hcd_resume (struct platform_device *pdev)
struct usb_hcd *hcd;
dev_dbg (&pdev->dev, "%s\n", __FUNCTION__);
- hcd = platform_get_drvdata (pdev);
- hcd->state = HC_STATE_RUNNING;
+ hcd = platform_get_drvdata (pdev);
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
usb_hcd_poll_rh_status (hcd);
return 0;
}