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include: usb: modify gadget.h to include udc support

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Made changes in gadget.h that is required after adding udc-core.c
except changes that might break other platforms.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Kishon Vijay Abraham I 2015-02-23 18:39:47 +05:30 committed by Marek Vasut
parent a139b96a47
commit 45d9337ec3
1 changed files with 43 additions and 0 deletions
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43
include/linux/usb/gadget.h
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@ -396,6 +396,7 @@ static inline void usb_ep_fifo_flush(struct usb_ep *ep)
/*-------------------------------------------------------------------------*/
struct usb_gadget;
struct usb_gadget_driver;
/* the rest of the api to the controller hardware: device operations,
* which don't involve endpoints (or i/o).
@ -409,6 +410,9 @@ struct usb_gadget_ops {
int (*pullup) (struct usb_gadget *, int is_on);
int (*ioctl)(struct usb_gadget *,
unsigned code, unsigned long param);
int (*udc_start)(struct usb_gadget *,
struct usb_gadget_driver *);
int (*udc_stop)(struct usb_gadget *);
};
/**
@ -459,6 +463,7 @@ struct usb_gadget {
struct usb_ep *ep0;
struct list_head ep_list; /* of usb_ep */
enum usb_device_speed speed;
enum usb_device_state state;
unsigned is_dualspeed:1;
unsigned is_otg:1;
unsigned is_a_peripheral:1;
@ -686,6 +691,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
/**
* struct usb_gadget_driver - driver for usb 'slave' devices
* @function: String describing the gadget's function
* @speed: Highest speed the driver handles.
* @bind: Invoked when the driver is bound to a gadget, usually
* after registering the driver.
@ -707,6 +713,8 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
* Called in a context that permits sleeping.
* @suspend: Invoked on USB suspend. May be called in_interrupt.
* @resume: Invoked on USB resume. May be called in_interrupt.
* @reset: Invoked on USB bus reset. It is mandatory for all gadget drivers
* and should be called in_interrupt.
*
* Devices are disabled till a gadget driver successfully bind()s, which
* means the driver will handle setup() requests needed to enumerate (and
@ -753,6 +761,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
* power is maintained.
*/
struct usb_gadget_driver {
char *function;
enum usb_device_speed speed;
int (*bind)(struct usb_gadget *);
void (*unbind)(struct usb_gadget *);
@ -761,6 +770,7 @@ struct usb_gadget_driver {
void (*disconnect)(struct usb_gadget *);
void (*suspend)(struct usb_gadget *);
void (*resume)(struct usb_gadget *);
void (*reset)(struct usb_gadget *);
};
@ -801,6 +811,10 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver);
*/
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver);
int usb_add_gadget_udc_release(struct device *parent,
struct usb_gadget *gadget, void (*release)(struct device *dev));
int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
void usb_del_gadget_udc(struct usb_gadget *gadget);
/*-------------------------------------------------------------------------*/
/* utility to simplify dealing with string descriptors */
@ -846,6 +860,35 @@ int usb_descriptor_fillbuf(void *, unsigned,
int usb_gadget_config_buf(const struct usb_config_descriptor *config,
void *buf, unsigned buflen, const struct usb_descriptor_header **desc);
/*-------------------------------------------------------------------------*/
/* utility to simplify map/unmap of usb_requests to/from DMA */
extern int usb_gadget_map_request(struct usb_gadget *gadget,
struct usb_request *req, int is_in);
extern void usb_gadget_unmap_request(struct usb_gadget *gadget,
struct usb_request *req, int is_in);
/*-------------------------------------------------------------------------*/
/* utility to set gadget state properly */
extern void usb_gadget_set_state(struct usb_gadget *gadget,
enum usb_device_state state);
/*-------------------------------------------------------------------------*/
/* utility to tell udc core that the bus reset occurs */
extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
struct usb_gadget_driver *driver);
/*-------------------------------------------------------------------------*/
/* utility to give requests back to the gadget layer */
extern void usb_gadget_giveback_request(struct usb_ep *ep,
struct usb_request *req);
/*-------------------------------------------------------------------------*/
/* utility wrapping a simple endpoint selection policy */