/*--- Dispatcher ---*/
int32 USBHost::dispatch(uint32 fncode)
{
int32 ret;
D(bug("USBHost: dispatch(%u)", fncode));
ret = EINVFN;
switch(fncode) {
case GET_VERSION:
D(bug("USBHost: getVersion"));
ret = USBHOST_NFAPI_VERSION;
break;
case USBHOST_INTLEVEL:
D(bug("USBHost: getINTlevel"));
ret = INTLEVEL;
break;
case USBHOST_RH_PORT_STATUS:
ret = rh_port_status(getParameter(0));
break;
case USBHOST_LOWLEVEL_INIT:
ret = usb_lowlevel_init();
break;
case USBHOST_LOWLEVEL_STOP:
ret = usb_lowlevel_stop();
break;
case USBHOST_SUBMIT_CONTROL_MSG:
ret = submit_control_msg(getParameter(0), getParameter(1), getParameter(2),
getParameter(3));
break;
case USBHOST_SUBMIT_INT_MSG:
ret = submit_int_msg(getParameter(0), getParameter(1), getParameter(2),
getParameter(3));
break;
case USBHOST_SUBMIT_BULK_MSG:
ret = submit_bulk_msg(getParameter(0), getParameter(1), getParameter(2));
break;
default:
D(bug("USBHost: unimplemented function #%d", fncode));
break;
}
D(bug("USBHost: function returning with 0x%08x", ret));
return ret;
}
/*-------------------------------------------------------------------
* submits bulk message, and waits for completion. returns 0 if Ok or
* -1 if Error.
* synchronous behavior
*/
int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
void *data, int len, int *actual_length, int timeout)
{
if (len < 0)
return -1;
dev->status=USB_ST_NOT_PROC; /*not yet processed */
if (usb_flag == usb_ehci_flag)
submit_bulk_msg(dev,pipe,data,len);
else if (usb_flag == usb_uhci_flag)
submit_uhci_bulk_msg(dev,pipe,data,len);
else
return -1;
*actual_length=dev->act_len;
return 0;
}
/*-------------------------------------------------------------------
* submits bulk message, and waits for completion. returns 0 if Ok or
* -1 if Error.
* synchronous behavior
*/
int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
void *data, int len, int *actual_length, int timeout)
{
if (len < 0)
return -1;
dev->status = USB_ST_NOT_PROC; /*not yet processed */
submit_bulk_msg(dev, pipe, data, len);
while (timeout--) {
if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
break;
wait_ms(1);
}
*actual_length = dev->act_len;
if (dev->status == 0)
return 0;
else
return -1;
}
int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int len, int interval)
{
unsigned long timeout;
int ret;
/* FIXME: what is interval? */
timeout = get_timer(0) + USB_TIMEOUT_MS(pipe);
for (;;) {
if (get_timer(0) > timeout) {
printf("Timeout poll on interrupt endpoint\n");
return -ETIMEDOUT;
}
ret = submit_bulk_msg(dev, pipe, buffer, len);
if (ret != -EAGAIN)
return ret;
}
}
/*-------------------------------------------------------------------
* submits bulk message, and waits for completion. returns 0 if Ok or
* -1 if Error.
* synchronous behavior
*/
int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
void *data, int len, int *actual_length, int timeout)
{
if (len < 0)
return -1;
dev->status = USB_ST_NOT_PROC; /*not yet processed */
submit_bulk_msg(dev, pipe, data, len);
if (USB_ST_DISCONNECT==dev->status)
return -3; //USB_STOR_TRANSPORT_NODEV
while(timeout>0) {
if(!(dev->status & USB_ST_NOT_PROC))
break;
wait_ms(1);
timeout--;
}
*actual_length = dev->act_len;
if (dev->status == 0)
return 0;
else
return -1;
}
/*-------------------------------------------------------------------
* submits bulk message, and waits for completion. returns 0 if Ok or
* negative if Error.
* synchronous behavior
*/
int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
void *data, int len, int *actual_length, int timeout)
{
int ret = -1;
if (len < 0)
{
return -EINVAL;
}
dev->status = USB_ST_NOT_PROC; /*not yet processed */
ret = submit_bulk_msg(dev, pipe, data, len);
*actual_length = dev->act_len;
return ret;
/*
* The following code is obsoluted.
*/
#if 0
if (ret < 0)
{
return ret;
}
while (timeout--) {
if (!(dev->status & USB_ST_NOT_PROC))
break;
mdelay(1);
}
*actual_length = dev->act_len;
if (dev->status == 0)
return 0;
else
return -EIO;
#endif
}
