struct usb_request *req;
struct ep_data *epdata;
void *buf;
- char __user *ubuf;
+ char __user *ubuf; /* NULL for writes */
unsigned actual;
};
status = priv->actual;
kfree(priv->buf);
kfree(priv);
- aio_put_req(iocb);
return status;
}
spin_lock(&epdata->dev->lock);
priv->req = NULL;
priv->epdata = NULL;
- if (NULL == iocb->ki_retry
- || unlikely(0 == req->actual)
+ if (priv->ubuf == NULL
+ || unlikely(req->actual == 0)
|| unlikely(kiocbIsCancelled(iocb))) {
kfree(req->buf);
kfree(priv);
char __user *ubuf
)
{
- struct kiocb_priv *priv = (void *) &iocb->private;
+ struct kiocb_priv *priv;
struct usb_request *req;
ssize_t value;
kfree(priv);
put_ep(epdata);
} else
- value = -EIOCBQUEUED;
+ value = (ubuf ? -EIOCBRETRY : -EIOCBQUEUED);
return value;
}
if (value == 0)
data->state = STATE_EP_ENABLED;
break;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
case USB_SPEED_HIGH:
/* fails if caller didn't provide that descriptor... */
value = usb_ep_enable (ep, &data->hs_desc);
static int
ep_open (struct inode *inode, struct file *fd)
{
- struct ep_data *data = inode->u.generic_ip;
+ struct ep_data *data = inode->i_private;
int value = -EBUSY;
if (down_interruptible (&data->lock) != 0)
/* assume that was SET_CONFIGURATION */
if (dev->current_config) {
unsigned power;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
if (dev->gadget->speed == USB_SPEED_HIGH)
power = dev->hs_config->bMaxPower;
else
/* ep0 can't deliver events when STATE_SETUP */
for (i = 0; i < n; i++) {
if (dev->event [i].type == GADGETFS_SETUP) {
- len = n = i + 1;
+ len = i + 1;
len *= sizeof (struct usb_gadgetfs_event);
n = 0;
break;
* Unrecognized ep0 requests may be handled in user space.
*/
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
static void make_qualifier (struct dev_data *dev)
{
struct usb_qualifier_descriptor qual;
config_buf (struct dev_data *dev, u8 type, unsigned index)
{
int len;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
int hs;
#endif
if (index > 0)
return -EINVAL;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
hs = (dev->gadget->speed == USB_SPEED_HIGH);
if (type == USB_DT_OTHER_SPEED_CONFIG)
hs = !hs;
dev->state = STATE_CONNECTED;
dev->dev->bMaxPacketSize0 = gadget->ep0->maxpacket;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == 0) {
ERROR (dev, "no high speed config??\n");
return -EINVAL;
}
-#endif /* HIGHSPEED */
+#endif /* CONFIG_USB_GADGET_DUALSPEED */
INFO (dev, "connected\n");
event = next_event (dev, GADGETFS_CONNECT);
/* ... down_trylock (&data->lock) ... */
if (data->state != STATE_EP_DEFER_ENABLE)
continue;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
if (gadget->speed == USB_SPEED_HIGH)
value = usb_ep_enable (ep, &data->hs_desc);
else
-#endif /* HIGHSPEED */
+#endif /* CONFIG_USB_GADGET_DUALSPEED */
value = usb_ep_enable (ep, &data->desc);
if (value) {
ERROR (dev, "deferred %s enable --> %d\n",
value = min (w_length, (u16) sizeof *dev->dev);
req->buf = dev->dev;
break;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
case USB_DT_DEVICE_QUALIFIER:
if (!dev->hs_config)
break;
// user mode expected to disable endpoints
} else {
u8 config, power;
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
if (gadget->speed == USB_SPEED_HIGH) {
config = dev->hs_config->bConfigurationValue;
power = dev->hs_config->bMaxPower;
static struct inode *
gadgetfs_create_file (struct super_block *sb, char const *name,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
struct dentry **dentry_p);
static int activate_ep_files (struct dev_data *dev)
{
struct usb_ep *ep;
+ struct ep_data *data;
gadget_for_each_ep (ep, dev->gadget) {
- struct ep_data *data;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
- goto enomem;
+ goto enomem0;
data->state = STATE_EP_DISABLED;
init_MUTEX (&data->lock);
init_waitqueue_head (&data->wait);
data->req = usb_ep_alloc_request (ep, GFP_KERNEL);
if (!data->req)
- goto enomem;
+ goto enomem1;
data->inode = gadgetfs_create_file (dev->sb, data->name,
data, &ep_config_operations,
&data->dentry);
- if (!data->inode) {
- kfree (data);
- goto enomem;
- }
+ if (!data->inode)
+ goto enomem2;
list_add_tail (&data->epfiles, &dev->epfiles);
}
return 0;
-enomem:
+enomem2:
+ usb_ep_free_request (ep, data->req);
+enomem1:
+ put_dev (dev);
+ kfree (data);
+enomem0:
DBG (dev, "%s enomem\n", __FUNCTION__);
destroy_ep_files (dev);
return -ENOMEM;
}
static struct usb_gadget_driver gadgetfs_driver = {
-#ifdef HIGHSPEED
+#ifdef CONFIG_USB_GADGET_DUALSPEED
.speed = USB_SPEED_HIGH,
#else
.speed = USB_SPEED_FULL,
*
* After initialization, the device stays active for as long as that
* $CHIP file is open. Events may then be read from that descriptor,
- * such configuration notifications. More complex drivers will handle
+ * such as configuration notifications. More complex drivers will handle
* some control requests in user space.
*/
static int
dev_open (struct inode *inode, struct file *fd)
{
- struct dev_data *dev = inode->u.generic_ip;
+ struct dev_data *dev = inode->i_private;
int value = -EBUSY;
if (dev->state == STATE_DEV_DISABLED) {
static struct inode *
gadgetfs_make_inode (struct super_block *sb,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
int mode)
{
struct inode *inode = new_inode (sb);
inode->i_blocks = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime
= CURRENT_TIME;
- inode->u.generic_ip = data;
+ inode->i_private = data;
inode->i_fop = fops;
}
return inode;
*/
static struct inode *
gadgetfs_create_file (struct super_block *sb, char const *name,
- void *data, struct file_operations *fops,
+ void *data, const struct file_operations *fops,
struct dentry **dentry_p)
{
struct dentry *dentry;
NULL, &simple_dir_operations,
S_IFDIR | S_IRUGO | S_IXUGO);
if (!inode)
- return -ENOMEM;
+ goto enomem0;
inode->i_op = &simple_dir_inode_operations;
- if (!(d = d_alloc_root (inode))) {
- iput (inode);
- return -ENOMEM;
- }
+ if (!(d = d_alloc_root (inode)))
+ goto enomem1;
sb->s_root = d;
/* the ep0 file is named after the controller we expect;
*/
dev = dev_new ();
if (!dev)
- return -ENOMEM;
+ goto enomem2;
dev->sb = sb;
- if (!(inode = gadgetfs_create_file (sb, CHIP,
+ if (!gadgetfs_create_file (sb, CHIP,
dev, &dev_init_operations,
- &dev->dentry))) {
- put_dev(dev);
- return -ENOMEM;
- }
+ &dev->dentry))
+ goto enomem3;
/* other endpoint files are available after hardware setup,
* from binding to a controller.
*/
the_device = dev;
return 0;
+
+enomem3:
+ put_dev (dev);
+enomem2:
+ dput (d);
+enomem1:
+ iput (inode);
+enomem0:
+ return -ENOMEM;
}
/* "mount -t gadgetfs path /dev/gadget" ends up here */
-static struct super_block *
+static int
gadgetfs_get_sb (struct file_system_type *t, int flags,
- const char *path, void *opts)
+ const char *path, void *opts, struct vfsmount *mnt)
{
- return get_sb_single (t, flags, opts, gadgetfs_fill_super);
+ return get_sb_single (t, flags, opts, gadgetfs_fill_super, mnt);
}
static void