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usb: Add an interval parameter to create_int_queue

Browse source 
Currently create_int_queue is only implemented by the ehci code, and that
does not honor interrupt intervals, but other drivers which might also want
to implement create_int_queue may honor intervals, so add an interval param.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2015-01-11 20:38:28 +01:00 • committed by Marek Vasut
parent a1d31077d0
commit 8bb6c1d1e0
3 changed files with 7 additions and 5 deletions
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6
common/usb_kbd.c
View file

@ -332,7 +332,8 @@ static inline void usb_kbd_poll_for_event(struct usb_device *dev)
/* We've consumed all queued int packets, create new */
destroy_int_queue(dev, data->intq);
data->intq = create_int_queue(dev, data->intpipe, 1,
USB_KBD_BOOT_REPORT_SIZE, data->new);
USB_KBD_BOOT_REPORT_SIZE, data->new,
data->intinterval);
}
#endif
}
@ -453,7 +454,8 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
debug("USB KBD: enable interrupt pipe...\n");
#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
data->intq = create_int_queue(dev, data->intpipe, 1,
USB_KBD_BOOT_REPORT_SIZE, data->new);
USB_KBD_BOOT_REPORT_SIZE, data->new,
data->intinterval);
if (!data->intq) {
#else
if (usb_submit_int_msg(dev, data->intpipe, data->new, data->intpktsize,

4
drivers/usb/host/ehci-hcd.c
View file

@ -1148,7 +1148,7 @@ disable_periodic(struct ehci_ctrl *ctrl)
struct int_queue *
create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize,
int elementsize, void *buffer)
int elementsize, void *buffer, int interval)
{
struct ehci_ctrl *ctrl = dev->controller;
struct int_queue *result = NULL;
@ -1398,7 +1398,7 @@ submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
debug("dev=%p, pipe=%lu, buffer=%p, length=%d, interval=%d",
dev, pipe, buffer, length, interval);
queue = create_int_queue(dev, pipe, 1, length, buffer);
queue = create_int_queue(dev, pipe, 1, length, buffer, interval);
if (!queue)
return -1;

2
include/usb.h
View file

@ -169,7 +169,7 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
#ifdef CONFIG_USB_EHCI /* Only the ehci code has pollable int support */
struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe,
int queuesize, int elementsize, void *buffer);
int queuesize, int elementsize, void *buffer, int interval);
int destroy_int_queue(struct usb_device *dev, struct int_queue *queue);
void *poll_int_queue(struct usb_device *dev, struct int_queue *queue);
#endif