mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* MUSB OTG driver peripheral defines
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*
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* Copyright 2005 Mentor Graphics Corporation
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* Copyright (C) 2005-2006 by Texas Instruments
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* Copyright (C) 2006-2007 Nokia Corporation
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*/
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#ifndef __MUSB_GADGET_H
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#define __MUSB_GADGET_H
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#include <linux/list.h>
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#ifdef __UBOOT__
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#include <asm/byteorder.h>
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#include <linux/errno.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#endif
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enum buffer_map_state {
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UN_MAPPED = 0,
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PRE_MAPPED,
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MUSB_MAPPED
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};
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struct musb_request {
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struct usb_request request;
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struct list_head list;
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struct musb_ep *ep;
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struct musb *musb;
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u8 tx; /* endpoint direction */
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u8 epnum;
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enum buffer_map_state map_state;
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};
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static inline struct musb_request *to_musb_request(struct usb_request *req)
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{
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return req ? container_of(req, struct musb_request, request) : NULL;
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}
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extern struct usb_request *
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musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags);
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extern void musb_free_request(struct usb_ep *ep, struct usb_request *req);
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/*
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* struct musb_ep - peripheral side view of endpoint rx or tx side
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*/
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struct musb_ep {
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/* stuff towards the head is basically write-once. */
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struct usb_ep end_point;
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char name[12];
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struct musb_hw_ep *hw_ep;
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struct musb *musb;
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u8 current_epnum;
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/* ... when enabled/disabled ... */
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u8 type;
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u8 is_in;
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u16 packet_sz;
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const struct usb_endpoint_descriptor *desc;
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struct dma_channel *dma;
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/* later things are modified based on usage */
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struct list_head req_list;
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u8 wedged;
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/* true if lock must be dropped but req_list may not be advanced */
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u8 busy;
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u8 hb_mult;
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};
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static inline struct musb_ep *to_musb_ep(struct usb_ep *ep)
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{
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return ep ? container_of(ep, struct musb_ep, end_point) : NULL;
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}
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static inline struct musb_request *next_request(struct musb_ep *ep)
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{
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struct list_head *queue = &ep->req_list;
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if (list_empty(queue))
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return NULL;
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return container_of(queue->next, struct musb_request, list);
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}
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extern void musb_g_tx(struct musb *musb, u8 epnum);
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extern void musb_g_rx(struct musb *musb, u8 epnum);
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extern const struct usb_ep_ops musb_g_ep0_ops;
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extern int musb_gadget_setup(struct musb *);
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extern void musb_gadget_cleanup(struct musb *);
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extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int);
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extern void musb_ep_restart(struct musb *, struct musb_request *);
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#ifdef __UBOOT__
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int musb_gadget_start(struct usb_gadget *g, struct usb_gadget_driver *driver);
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#endif
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#endif /* __MUSB_GADGET_H */
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