Various USB related patches

- Add support for mpc8xx USB device.
- Add support for Common Device Class - Abstract Control Model USB console.
- Add support for flow control in USB slave devices.
- Add support for switching between gserial and cdc_acm using environment.
- Minor changes to usbdcore_omap1510.c usbdcore_omap1510.h
- Update usbcore slightly to ease host enumeration.
- Fix non-portable endian problems in usbdcore and usbdcore_ep0.
- Add AdderUSB_config as a defconfig to enable usage of the USB console
  by default with the Adder87x U-Boot port.
Patches by Bryan O'Donoghue <bodonoghue@codehermit.ie>, 29 May 2006

1 files changed, 28 insertions, 1 deletions

diff --git a/drivers/usbdcore_omap1510.c b/drivers/usbdcore_omap1510.c
index 1d54a63575..83d898f0de 100644
--- a/drivers/usbdcore_omap1510.c
+++ b/drivers/usbdcore_omap1510.c
@@ -645,7 +645,7 @@ static void omap1510_udc_state_changed (void)
 static void omap1510_udc_setup (struct usb_endpoint_instance *endpoint)
 {
 	UDCDBG ("-> Entering device setup");
-
+	
 	do {
 		const int setup_pktsize = 8;
 		unsigned char *datap =
@@ -1517,4 +1517,31 @@ void udc_startup_events (struct usb_device_instance *device)
 	udc_enable (device);
 }
 
+/**
+ * udc_irq - do pseudo interrupts 
+ */
+void udc_irq(void)
+{
+	/* Loop while we have interrupts.
+	 * If we don't do this, the input chain
+	 * polling delay is likely to miss
+	 * host requests.
+	 */
+	while (inw (UDC_IRQ_SRC) & ~UDC_SOF_Flg) {
+		/* Handle any new IRQs */
+		omap1510_udc_irq ();
+		omap1510_udc_noniso_irq ();
+	}
+}
+
+/* Flow control */
+void udc_set_nak(int epid)
+{
+	/* TODO: implement this functionality in omap1510 */
+}
+
+void udc_unset_nak (int epid)
+{
+	/* TODO: implement this functionality in omap1510 */
+}
 #endif