diff options
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/gadget.h | 17 | ||||
| -rw-r--r-- | include/linux/usb/hcd.h | 5 | ||||
| -rw-r--r-- | include/linux/usb/quirks.h | 3 |
3 files changed, 20 insertions, 5 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 143e556f141d..0e61b1f65359 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -770,8 +770,20 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) list_for_each_entry(tmp, &(gadget)->ep_list, ep_list) /** + * usb_ep_align - returns @len aligned to ep's maxpacketsize. + * @ep: the endpoint whose maxpacketsize is used to align @len + * @len: buffer size's length to align to @ep's maxpacketsize + * + * This helper is used to align buffer's size to an ep's maxpacketsize. + */ +static inline size_t usb_ep_align(struct usb_ep *ep, size_t len) +{ + return round_up(len, (size_t)le16_to_cpu(ep->desc->wMaxPacketSize)); +} + +/** * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget - * requires quirk_ep_out_aligned_size, otherwise reguens len. + * requires quirk_ep_out_aligned_size, otherwise returns len. * @g: controller to check for quirk * @ep: the endpoint whose maxpacketsize is used to align @len * @len: buffer size's length to align to @ep's maxpacketsize @@ -782,8 +794,7 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) static inline size_t usb_ep_align_maybe(struct usb_gadget *g, struct usb_ep *ep, size_t len) { - return !g->quirk_ep_out_aligned_size ? len : - round_up(len, (size_t)ep->desc->wMaxPacketSize); + return g->quirk_ep_out_aligned_size ? usb_ep_align(ep, len) : len; } /** diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 8cbf59e6406b..dff7adbc60bb 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -403,7 +403,8 @@ struct hc_driver { unsigned intr_num); dma_addr_t (*get_xfer_ring_dma_addr)(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint *ep); - int (*get_core_id)(struct usb_hcd *hcd); + dma_addr_t (*get_dcba_dma_addr)(struct usb_hcd *hcd, + struct usb_device *udev); }; static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) @@ -449,10 +450,10 @@ extern int usb_hcd_sec_event_ring_cleanup(struct usb_device *udev, extern dma_addr_t usb_hcd_get_sec_event_ring_dma_addr(struct usb_device *udev, unsigned intr_num); +extern dma_addr_t usb_hcd_get_dcba_dma_addr(struct usb_device *udev); extern dma_addr_t usb_hcd_get_xfer_ring_dma_addr(struct usb_device *udev, struct usb_host_endpoint *ep); -extern int usb_hcd_get_controller_id(struct usb_device *udev); extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, struct device *dev, const char *bus_name); diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h index de2a722fe3cf..ea4f81c2a6d5 100644 --- a/include/linux/usb/quirks.h +++ b/include/linux/usb/quirks.h @@ -56,4 +56,7 @@ */ #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL BIT(11) +/* Device needs a pause after every control message. */ +#define USB_QUIRK_DELAY_CTRL_MSG BIT(13) + #endif /* __LINUX_USB_QUIRKS_H */ |