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USB: Add usb_event_poll() to get keyboards working with EHCI

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Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Remy Bohmer <linux@bohmer.net>
This commit is contained in:
Marek Vasut 2011-09-25 21:07:56 +02:00 • committed by Remy Bohmer
parent 26cc5129ee
commit 7555d5ec29
1 changed files with 32 additions and 1 deletions
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33
drivers/usb/host/ehci-hcd.c
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@ -26,6 +26,10 @@
#include <asm/io.h>
#include <malloc.h>
#include <watchdog.h>
#ifdef CONFIG_USB_KEYBOARD
#include <stdio_dev.h>
extern unsigned char new[];
#endif
#include "ehci.h"
@ -895,5 +899,32 @@ 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);
return -1;
return ehci_submit_async(dev, pipe, buffer, length, NULL);
}
#ifdef CONFIG_SYS_USB_EVENT_POLL
/*
* This function polls for USB keyboard data.
*/
void usb_event_poll()
{
struct stdio_dev *dev;
struct usb_device *usb_kbd_dev;
struct usb_interface *iface;
struct usb_endpoint_descriptor *ep;
int pipe;
int maxp;
/* Get the pointer to USB Keyboard device pointer */
dev = stdio_get_by_name("usbkbd");
usb_kbd_dev = (struct usb_device *)dev->priv;
iface = &usb_kbd_dev->config.if_desc[0];
ep = &iface->ep_desc[0];
pipe = usb_rcvintpipe(usb_kbd_dev, ep->bEndpointAddress);
/* Submit a interrupt transfer request */
maxp = usb_maxpacket(usb_kbd_dev, pipe);
usb_submit_int_msg(usb_kbd_dev, pipe, &new[0],
maxp > 8 ? 8 : maxp, ep->bInterval);
}
#endif /* CONFIG_SYS_USB_EVENT_POLL */