21b650c236
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Acked-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
127 lines
4 KiB
C
127 lines
4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* MUSB OTG driver host 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_HOST_H
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#define _MUSB_HOST_H
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#include <linux/scatterlist.h>
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/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
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struct musb_qh {
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struct usb_host_endpoint *hep; /* usbcore info */
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struct usb_device *dev;
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struct musb_hw_ep *hw_ep; /* current binding */
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struct list_head ring; /* of musb_qh */
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/* struct musb_qh *next; */ /* for periodic tree */
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u8 mux; /* qh multiplexed to hw_ep */
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unsigned offset; /* in urb->transfer_buffer */
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unsigned segsize; /* current xfer fragment */
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u8 type_reg; /* {rx,tx} type register */
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u8 intv_reg; /* {rx,tx} interval register */
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u8 addr_reg; /* device address register */
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u8 h_addr_reg; /* hub address register */
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u8 h_port_reg; /* hub port register */
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u8 is_ready; /* safe to modify hw_ep */
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u8 type; /* XFERTYPE_* */
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u8 epnum;
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u8 hb_mult; /* high bandwidth pkts per uf */
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u16 maxpacket;
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u16 frame; /* for periodic schedule */
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unsigned iso_idx; /* in urb->iso_frame_desc[] */
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struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */
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bool use_sg; /* to track urb using sglist */
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};
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/* map from control or bulk queue head to the first qh on that ring */
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static inline struct musb_qh *first_qh(struct list_head *q)
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{
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if (list_empty(q))
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return NULL;
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return list_entry(q->next, struct musb_qh, ring);
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}
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#if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE)
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extern struct musb *hcd_to_musb(struct usb_hcd *);
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extern irqreturn_t musb_h_ep0_irq(struct musb *);
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extern int musb_host_alloc(struct musb *);
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extern int musb_host_setup(struct musb *, int);
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extern void musb_host_cleanup(struct musb *);
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extern void musb_host_tx(struct musb *, u8);
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extern void musb_host_rx(struct musb *, u8);
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extern void musb_root_disconnect(struct musb *musb);
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extern void musb_host_free(struct musb *);
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extern void musb_host_cleanup(struct musb *);
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extern void musb_host_tx(struct musb *, u8);
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extern void musb_host_rx(struct musb *, u8);
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extern void musb_root_disconnect(struct musb *musb);
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extern void musb_host_resume_root_hub(struct musb *musb);
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extern void musb_host_poke_root_hub(struct musb *musb);
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extern void musb_port_suspend(struct musb *musb, bool do_suspend);
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extern void musb_port_reset(struct musb *musb, bool do_reset);
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extern void musb_host_finish_resume(struct work_struct *work);
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#else
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static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
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{
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return NULL;
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}
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static inline irqreturn_t musb_h_ep0_irq(struct musb *musb)
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{
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return 0;
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}
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static inline int musb_host_alloc(struct musb *musb)
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{
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return 0;
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}
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static inline int musb_host_setup(struct musb *musb, int power_budget)
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{
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return 0;
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}
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static inline void musb_host_cleanup(struct musb *musb) {}
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static inline void musb_host_free(struct musb *musb) {}
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static inline void musb_host_tx(struct musb *musb, u8 epnum) {}
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static inline void musb_host_rx(struct musb *musb, u8 epnum) {}
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static inline void musb_root_disconnect(struct musb *musb) {}
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static inline void musb_host_resume_root_hub(struct musb *musb) {}
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static inline void musb_host_poll_rh_status(struct musb *musb) {}
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static inline void musb_host_poke_root_hub(struct musb *musb) {}
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static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {}
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static inline void musb_port_reset(struct musb *musb, bool do_reset) {}
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static inline void musb_host_finish_resume(struct work_struct *work) {}
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#endif
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struct usb_hcd;
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extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
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extern int musb_hub_control(struct usb_hcd *hcd,
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u16 typeReq, u16 wValue, u16 wIndex,
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char *buf, u16 wLength);
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static inline struct urb *next_urb(struct musb_qh *qh)
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{
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struct list_head *queue;
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if (!qh)
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return NULL;
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queue = &qh->hep->urb_list;
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if (list_empty(queue))
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return NULL;
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return list_entry(queue->next, struct urb, urb_list);
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}
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#endif /* _MUSB_HOST_H */
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