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128 lines
3.9 KiB
128 lines
3.9 KiB
/* 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 int 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_poke_root_hub(struct musb *musb) {} |
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static inline int musb_port_suspend(struct musb *musb, bool do_suspend) |
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{ |
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return 0; |
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} |
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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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