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Commit | Line | Data |
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6814c73f | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
550a7375 FB |
2 | /* |
3 | * MUSB OTG driver host defines | |
4 | * | |
5 | * Copyright 2005 Mentor Graphics Corporation | |
6 | * Copyright (C) 2005-2006 by Texas Instruments | |
7 | * Copyright (C) 2006-2007 Nokia Corporation | |
550a7375 FB |
8 | */ |
9 | ||
10 | #ifndef _MUSB_HOST_H | |
11 | #define _MUSB_HOST_H | |
12 | ||
8e8a5516 VS |
13 | #include <linux/scatterlist.h> |
14 | ||
550a7375 FB |
15 | /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */ |
16 | struct musb_qh { | |
17 | struct usb_host_endpoint *hep; /* usbcore info */ | |
18 | struct usb_device *dev; | |
19 | struct musb_hw_ep *hw_ep; /* current binding */ | |
20 | ||
21 | struct list_head ring; /* of musb_qh */ | |
22 | /* struct musb_qh *next; */ /* for periodic tree */ | |
23d15e07 | 23 | u8 mux; /* qh multiplexed to hw_ep */ |
550a7375 FB |
24 | |
25 | unsigned offset; /* in urb->transfer_buffer */ | |
26 | unsigned segsize; /* current xfer fragment */ | |
27 | ||
28 | u8 type_reg; /* {rx,tx} type register */ | |
29 | u8 intv_reg; /* {rx,tx} interval register */ | |
30 | u8 addr_reg; /* device address register */ | |
31 | u8 h_addr_reg; /* hub address register */ | |
32 | u8 h_port_reg; /* hub port register */ | |
33 | ||
34 | u8 is_ready; /* safe to modify hw_ep */ | |
35 | u8 type; /* XFERTYPE_* */ | |
36 | u8 epnum; | |
a483d706 | 37 | u8 hb_mult; /* high bandwidth pkts per uf */ |
550a7375 FB |
38 | u16 maxpacket; |
39 | u16 frame; /* for periodic schedule */ | |
40 | unsigned iso_idx; /* in urb->iso_frame_desc[] */ | |
8e8a5516 | 41 | struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ |
ed74df12 | 42 | bool use_sg; /* to track urb using sglist */ |
550a7375 FB |
43 | }; |
44 | ||
45 | /* map from control or bulk queue head to the first qh on that ring */ | |
46 | static inline struct musb_qh *first_qh(struct list_head *q) | |
47 | { | |
48 | if (list_empty(q)) | |
49 | return NULL; | |
50 | return list_entry(q->next, struct musb_qh, ring); | |
51 | } | |
52 | ||
53 | ||
b7b741ea DM |
54 | #if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE) |
55 | extern struct musb *hcd_to_musb(struct usb_hcd *); | |
c2a2759d | 56 | extern irqreturn_t musb_h_ep0_irq(struct musb *); |
74c2e936 | 57 | extern int musb_host_alloc(struct musb *); |
2cc65fea DM |
58 | extern int musb_host_setup(struct musb *, int); |
59 | extern void musb_host_cleanup(struct musb *); | |
74c2e936 DM |
60 | extern void musb_host_tx(struct musb *, u8); |
61 | extern void musb_host_rx(struct musb *, u8); | |
62 | extern void musb_root_disconnect(struct musb *musb); | |
63 | extern void musb_host_free(struct musb *); | |
64 | extern void musb_host_cleanup(struct musb *); | |
c2a2759d DM |
65 | extern void musb_host_tx(struct musb *, u8); |
66 | extern void musb_host_rx(struct musb *, u8); | |
550a7375 | 67 | extern void musb_root_disconnect(struct musb *musb); |
0b3eba44 DM |
68 | extern void musb_host_resume_root_hub(struct musb *musb); |
69 | extern void musb_host_poke_root_hub(struct musb *musb); | |
ebc3dd68 | 70 | extern int musb_port_suspend(struct musb *musb, bool do_suspend); |
869c5978 | 71 | extern void musb_port_reset(struct musb *musb, bool do_reset); |
8ed1fb79 | 72 | extern void musb_host_finish_resume(struct work_struct *work); |
b7b741ea DM |
73 | #else |
74 | static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) | |
75 | { | |
76 | return NULL; | |
77 | } | |
78 | ||
79 | static inline irqreturn_t musb_h_ep0_irq(struct musb *musb) | |
80 | { | |
81 | return 0; | |
82 | } | |
83 | ||
84 | static inline int musb_host_alloc(struct musb *musb) | |
85 | { | |
86 | return 0; | |
87 | } | |
88 | ||
2cc65fea DM |
89 | static inline int musb_host_setup(struct musb *musb, int power_budget) |
90 | { | |
91 | return 0; | |
92 | } | |
93 | ||
94 | static inline void musb_host_cleanup(struct musb *musb) {} | |
b7b741ea DM |
95 | static inline void musb_host_free(struct musb *musb) {} |
96 | static inline void musb_host_tx(struct musb *musb, u8 epnum) {} | |
97 | static inline void musb_host_rx(struct musb *musb, u8 epnum) {} | |
98 | static inline void musb_root_disconnect(struct musb *musb) {} | |
99 | static inline void musb_host_resume_root_hub(struct musb *musb) {} | |
b7b741ea | 100 | static inline void musb_host_poke_root_hub(struct musb *musb) {} |
ebc3dd68 DG |
101 | static inline int musb_port_suspend(struct musb *musb, bool do_suspend) |
102 | { | |
103 | return 0; | |
104 | } | |
071f58b3 | 105 | static inline void musb_port_reset(struct musb *musb, bool do_reset) {} |
8ed1fb79 | 106 | static inline void musb_host_finish_resume(struct work_struct *work) {} |
b7b741ea | 107 | #endif |
550a7375 FB |
108 | |
109 | struct usb_hcd; | |
110 | ||
111 | extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf); | |
112 | extern int musb_hub_control(struct usb_hcd *hcd, | |
113 | u16 typeReq, u16 wValue, u16 wIndex, | |
114 | char *buf, u16 wLength); | |
115 | ||
550a7375 FB |
116 | static inline struct urb *next_urb(struct musb_qh *qh) |
117 | { | |
550a7375 FB |
118 | struct list_head *queue; |
119 | ||
120 | if (!qh) | |
121 | return NULL; | |
122 | queue = &qh->hep->urb_list; | |
123 | if (list_empty(queue)) | |
124 | return NULL; | |
125 | return list_entry(queue->next, struct urb, urb_list); | |
550a7375 FB |
126 | } |
127 | ||
128 | #endif /* _MUSB_HOST_H */ |