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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | /* SPDX-License-Identifier: GPL-2.0 */ /* * MUSB OTG driver host defines * * Copyright 2005 Mentor Graphics Corporation * Copyright (C) 2005-2006 by Texas Instruments * Copyright (C) 2006-2007 Nokia Corporation */ #ifndef _MUSB_HOST_H #define _MUSB_HOST_H #include <linux/scatterlist.h> /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */ struct musb_qh { struct usb_host_endpoint *hep; /* usbcore info */ struct usb_device *dev; struct musb_hw_ep *hw_ep; /* current binding */ struct list_head ring; /* of musb_qh */ /* struct musb_qh *next; */ /* for periodic tree */ u8 mux; /* qh multiplexed to hw_ep */ unsigned offset; /* in urb->transfer_buffer */ unsigned segsize; /* current xfer fragment */ u8 type_reg; /* {rx,tx} type register */ u8 intv_reg; /* {rx,tx} interval register */ u8 addr_reg; /* device address register */ u8 h_addr_reg; /* hub address register */ u8 h_port_reg; /* hub port register */ u8 is_ready; /* safe to modify hw_ep */ u8 type; /* XFERTYPE_* */ u8 epnum; u8 hb_mult; /* high bandwidth pkts per uf */ u16 maxpacket; u16 frame; /* for periodic schedule */ unsigned iso_idx; /* in urb->iso_frame_desc[] */ struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ bool use_sg; /* to track urb using sglist */ }; /* map from control or bulk queue head to the first qh on that ring */ static inline struct musb_qh *first_qh(struct list_head *q) { if (list_empty(q)) return NULL; return list_entry(q->next, struct musb_qh, ring); } #if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE) extern struct musb *hcd_to_musb(struct usb_hcd *); extern irqreturn_t musb_h_ep0_irq(struct musb *); extern int musb_host_alloc(struct musb *); extern int musb_host_setup(struct musb *, int); extern void musb_host_cleanup(struct musb *); extern void musb_host_tx(struct musb *, u8); extern void musb_host_rx(struct musb *, u8); extern void musb_root_disconnect(struct musb *musb); extern void musb_host_free(struct musb *); extern void musb_host_resume_root_hub(struct musb *musb); extern void musb_host_poke_root_hub(struct musb *musb); extern int musb_port_suspend(struct musb *musb, bool do_suspend); extern void musb_port_reset(struct musb *musb, bool do_reset); extern void musb_host_finish_resume(struct work_struct *work); #else static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) { return NULL; } static inline irqreturn_t musb_h_ep0_irq(struct musb *musb) { return 0; } static inline int musb_host_alloc(struct musb *musb) { return 0; } static inline int musb_host_setup(struct musb *musb, int power_budget) { return 0; } static inline void musb_host_cleanup(struct musb *musb) {} static inline void musb_host_free(struct musb *musb) {} static inline void musb_host_tx(struct musb *musb, u8 epnum) {} static inline void musb_host_rx(struct musb *musb, u8 epnum) {} static inline void musb_root_disconnect(struct musb *musb) {} static inline void musb_host_resume_root_hub(struct musb *musb) {} static inline void musb_host_poke_root_hub(struct musb *musb) {} static inline int musb_port_suspend(struct musb *musb, bool do_suspend) { return 0; } static inline void musb_port_reset(struct musb *musb, bool do_reset) {} static inline void musb_host_finish_resume(struct work_struct *work) {} #endif struct usb_hcd; extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf); extern int musb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); static inline struct urb *next_urb(struct musb_qh *qh) { struct list_head *queue; if (!qh) return NULL; queue = &qh->hep->urb_list; if (list_empty(queue)) return NULL; return list_entry(queue->next, struct urb, urb_list); } #endif /* _MUSB_HOST_H */ |