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reorganise the USB stack a bit to allow for easier integration of non-ARC controller drivers

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18703 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Gevaerts 2008-10-03 22:43:16 +00:00
parent 6219f4c862
commit 478fc5baed
12 changed files with 185 additions and 99 deletions
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13
firmware/usbstack/usb_class_driver.h
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@ -35,6 +35,9 @@ struct usb_class_driver {
/* Set this to true if the driver needs exclusive disk access (e.g. usb storage) */
bool needs_exclusive_ata;
/* Let the driver request endpoints it need. Returns zero on success */
int (*request_endpoints)(struct usb_class_driver *);
/* Tells the driver what its first interface number will be. The driver
returns the number of the first available interface for the next driver
(i.e. a driver with one interface will return interface+1)
@ -42,12 +45,6 @@ struct usb_class_driver {
Mandatory function */
int (*set_first_interface)(int interface);
/* Tells the driver what its first endpoint pair number will be. The driver
returns the number of the first available endpoint pair for the next
driver (i.e. a driver with one endpoint pair will return endpoint +1)
Mandatory function */
int (*set_first_endpoint)(int endpoint);
/* Asks the driver to put the interface descriptor and all other
needed descriptor for this driver at dest.
Returns the number of bytes taken by these descriptors.
@ -69,10 +66,10 @@ struct usb_class_driver {
Optional function */
void (*disconnect)(void);
/* Tells the driver that a usb transfer has been completed. Note that "in"
/* Tells the driver that a usb transfer has been completed. Note that "dir"
is relative to the host
Optional function */
void (*transfer_complete)(int ep,bool in, int status, int length);
void (*transfer_complete)(int ep,int dir, int status, int length);
/* Tells the driver that a control request has come in. If the driver is
able to handle it, it should ack the request, and return true. Otherwise