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authorHans de Goede <hdegoede@redhat.com>2014-09-20 16:51:25 +0200
committerMarek Vasut <marex@denx.de>2014-10-06 14:50:42 +0200
commit36b73109c49c1359a5fcc790c00717cb27468c12 (patch)
treec749bb26c7bd765d63102b0382bfbd98acabd058 /drivers/usb/host
parent415548d88446134549917aae026f53dbbee36fd2 (diff)
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usb: ehci: Make periodic_schedules a per controller variable
Periodic schedules tracks how many int_queue-s are active, and decides whether or not to en/disable the periodic schedule based on this. This is clearly a per controller thing. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/ehci-hcd.c9
-rw-r--r--drivers/usb/host/ehci.h1
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 635a3b4..6323c50 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -996,6 +996,7 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
* Set up periodic list
* Step 1: Parent QH for all periodic transfers.
*/
+ ehcic[index].periodic_schedules = 0;
periodic = &ehcic[index].periodic_queue;
memset(periodic, 0, sizeof(*periodic));
periodic->qh_link = cpu_to_hc32(QH_LINK_TERMINATE);
@@ -1154,8 +1155,6 @@ disable_periodic(struct ehci_ctrl *ctrl)
return 0;
}
-static int periodic_schedules;
-
struct int_queue *
create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize,
int elementsize, void *buffer)
@@ -1278,7 +1277,7 @@ create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize,
debug("FATAL: periodic should never fail, but did");
goto fail3;
}
- periodic_schedules++;
+ ctrl->periodic_schedules++;
debug("Exit create_int_queue\n");
return result;
@@ -1335,7 +1334,7 @@ destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
debug("FATAL: periodic should never fail, but did");
goto out;
}
- periodic_schedules--;
+ ctrl->periodic_schedules--;
struct QH *cur = &ctrl->periodic_queue;
timeout = get_timer(0) + 500; /* abort after 500ms */
@@ -1357,7 +1356,7 @@ destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
}
}
- if (periodic_schedules > 0) {
+ if (ctrl->periodic_schedules > 0) {
result = enable_periodic(ctrl);
if (result < 0)
debug("FATAL: periodic should never fail, but did");
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 093eb4b..433e703 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -246,6 +246,7 @@ struct ehci_ctrl {
struct QH qh_list __aligned(USB_DMA_MINALIGN);
struct QH periodic_queue __aligned(USB_DMA_MINALIGN);
uint32_t *periodic_list;
+ int periodic_schedules;
int ntds;
};