static int st5481_setup_b_out(struct st5481_bcs *bcs)
{
struct usb_device *dev = bcs->adapter->usb_dev;
struct usb_interface *intf;
struct usb_host_interface *altsetting = NULL;
struct usb_host_endpoint *endpoint;
struct st5481_b_out *b_out = &bcs->b_out;
DBG(4,"");
intf = usb_ifnum_to_if(dev, 0);
if (intf)
altsetting = usb_altnum_to_altsetting(intf, 3);
if (!altsetting)
return -ENXIO;
// Allocate URBs and buffers for the B channel out
endpoint = &altsetting->endpoint[EP_B1_OUT - 1 + bcs->channel * 2];
DBG(4,"endpoint address=%02x,packet size=%d",
endpoint->desc.bEndpointAddress, le16_to_cpu(endpoint->desc.wMaxPacketSize));
// Allocate memory for 8000bytes/sec + extra bytes if underrun
return st5481_setup_isocpipes(b_out->urb, dev,
usb_sndisocpipe(dev, endpoint->desc.bEndpointAddress),
NUM_ISO_PACKETS_B, SIZE_ISO_PACKETS_B_OUT,
NUM_ISO_PACKETS_B * SIZE_ISO_PACKETS_B_OUT + B_FLOW_ADJUST,
usb_b_out_complete, bcs);
}
int st5481_setup_in(struct st5481_in *in)
{
struct usb_device *dev = in->adapter->usb_dev;
int retval;
DBG(4, "");
in->rcvbuf = kmalloc(in->bufsize, GFP_KERNEL);
retval = -ENOMEM;
if (!in->rcvbuf)
goto err;
retval = st5481_setup_isocpipes(in->urb, dev,
usb_rcvisocpipe(dev, in->ep),
in->num_packets, in->packet_size,
in->num_packets * in->packet_size,
usb_in_complete, in);
if (retval)
goto err_free;
return 0;
err_free:
kfree(in->rcvbuf);
err:
return retval;
}
static int st5481_setup_d_out(struct st5481_adapter *adapter)
{
struct usb_device *dev = adapter->usb_dev;
struct usb_interface *intf;
struct usb_host_interface *altsetting = NULL;
struct usb_host_endpoint *endpoint;
struct st5481_d_out *d_out = &adapter->d_out;
DBG(2,"");
intf = usb_ifnum_to_if(dev, 0);
if (intf)
altsetting = usb_altnum_to_altsetting(intf, 3);
if (!altsetting)
return -ENXIO;
// Allocate URBs and buffers for the D channel out
endpoint = &altsetting->endpoint[EP_D_OUT-1];
DBG(2,"endpoint address=%02x,packet size=%d",
endpoint->desc.bEndpointAddress, le16_to_cpu(endpoint->desc.wMaxPacketSize));
return st5481_setup_isocpipes(d_out->urb, dev,
usb_sndisocpipe(dev, endpoint->desc.bEndpointAddress),
NUM_ISO_PACKETS_D, SIZE_ISO_PACKETS_D_OUT,
NUM_ISO_PACKETS_D * SIZE_ISO_PACKETS_D_OUT,
usb_d_out_complete, adapter);
}
static int __devinit st5481_setup_d_out(struct st5481_adapter *adapter)
{
struct usb_device *dev = adapter->usb_dev;
struct usb_interface_descriptor *altsetting;
struct usb_endpoint_descriptor *endpoint;
struct st5481_d_out *d_out = &adapter->d_out;
DBG(2,"");
altsetting = &(dev->config->interface[0].altsetting[3]);
// Allocate URBs and buffers for the D channel out
endpoint = &altsetting->endpoint[EP_D_OUT-1];
DBG(2,"endpoint address=%02x,packet size=%d",
endpoint->bEndpointAddress,endpoint->wMaxPacketSize);
return st5481_setup_isocpipes(d_out->urb, dev,
usb_sndisocpipe(dev, endpoint->bEndpointAddress),
NUM_ISO_PACKETS_D, SIZE_ISO_PACKETS_D_OUT,
NUM_ISO_PACKETS_D * SIZE_ISO_PACKETS_D_OUT,
usb_d_out_complete, adapter);
}
static int __devinit st5481_setup_b_out(struct st5481_bcs *bcs)
{
struct usb_device *dev = bcs->adapter->usb_dev;
struct usb_interface_descriptor *altsetting;
struct usb_endpoint_descriptor *endpoint;
struct st5481_b_out *b_out = &bcs->b_out;
DBG(4,"");
altsetting = &(dev->config->interface[0].altsetting[3]);
// Allocate URBs and buffers for the B channel out
endpoint = &altsetting->endpoint[EP_B1_OUT - 1 + bcs->channel * 2];
DBG(4,"endpoint address=%02x,packet size=%d",
endpoint->bEndpointAddress,endpoint->wMaxPacketSize);
// Allocate memory for 8000bytes/sec + extra bytes if underrun
return st5481_setup_isocpipes(b_out->urb, dev,
usb_sndisocpipe(dev, endpoint->bEndpointAddress),
NUM_ISO_PACKETS_B, SIZE_ISO_PACKETS_B_OUT,
NUM_ISO_PACKETS_B * SIZE_ISO_PACKETS_B_OUT + B_FLOW_ADJUST,
usb_b_out_complete, bcs);
}
