USB: move keyboard polling into kbd driver

This moves keyboard polling logic from USB HCD drivers into USB
keyboard driver.  Remove usb_event_poll() as keyboard polling was
the only user of this API.  With this patch USB keyboard works with
EHCI controllers again.  Tested on a tegra2 seaboard.

Signed-off-by: Allen Martin <amartin@nvidia.com>

common/usb_kbd.c

@@ -323,7 +323,23 @@ static int usb_kbd_irq(struct usb_device *dev)
 static inline void usb_kbd_poll_for_event(struct usb_device *dev)
 {
 #if	defined(CONFIG_SYS_USB_EVENT_POLL)
-	usb_event_poll();
+	struct usb_interface *iface;
+	struct usb_endpoint_descriptor *ep;
+	struct usb_kbd_pdata *data;
+	int pipe;
+	int maxp;
+
+	/* Get the pointer to USB Keyboard device pointer */
+	data = dev->privptr;
+	iface = &dev->config.if_desc[0];
+	ep = &iface->ep_desc[0];
+	pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
+
+	/* Submit a interrupt transfer request */
+	maxp = usb_maxpacket(dev, pipe);
+	usb_submit_int_msg(dev, pipe, &data->new[0],
+			maxp > 8 ? 8 : maxp, ep->bInterval);
+
 	usb_kbd_irq_worker(dev);
 #elif	defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
 	struct usb_interface *iface;

drivers/usb/host/ehci-hcd.c

@@ -26,10 +26,6 @@
 #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"
 
@@ -910,29 +906,3 @@ submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 	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 */

drivers/usb/host/ohci-hcd.c

@@ -1771,12 +1771,6 @@ static int hc_start(ohci_t *ohci)
 
 /*-------------------------------------------------------------------------*/
 
-/* Poll USB interrupt. */
-void usb_event_poll(void)
-{
-	hc_interrupt();
-}
-
 /* an interrupt happens */
 
 static int hc_interrupt(void)

drivers/usb/host/r8a66597-hcd.c

@@ -908,12 +908,6 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 	return 0;
 }
 
-void usb_event_poll(void)
-{
-	/* no implement */
-	R8A66597_DPRINT("%s\n", __func__);
-}
-
 int usb_lowlevel_init(void)
 {
 	struct r8a66597 *r8a66597 = &gr8a66597;

drivers/usb/musb/musb_hcd.c

@@ -1265,31 +1265,3 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe,
 	dev->act_len = len;
 	return 0;
 }
-
-
-#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 */

include/usb.h

@@ -149,7 +149,6 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 			int transfer_len, struct devrequest *setup);
 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 			int transfer_len, int interval);
-void usb_event_poll(void);
 
 /* Defines */
 #define USB_UHCI_VEND_ID	0x8086