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550a7375 FB |
1 | /* |
2 | * MUSB OTG driver host defines | |
3 | * | |
4 | * Copyright 2005 Mentor Graphics Corporation | |
5 | * Copyright (C) 2005-2006 by Texas Instruments | |
6 | * Copyright (C) 2006-2007 Nokia Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * version 2 as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
20 | * 02110-1301 USA | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED | |
23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
25 | * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
28 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
29 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifndef _MUSB_HOST_H | |
36 | #define _MUSB_HOST_H | |
37 | ||
8e8a5516 VS |
38 | #include <linux/scatterlist.h> |
39 | ||
550a7375 FB |
40 | /* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */ |
41 | struct musb_qh { | |
42 | struct usb_host_endpoint *hep; /* usbcore info */ | |
43 | struct usb_device *dev; | |
44 | struct musb_hw_ep *hw_ep; /* current binding */ | |
45 | ||
46 | struct list_head ring; /* of musb_qh */ | |
47 | /* struct musb_qh *next; */ /* for periodic tree */ | |
23d15e07 | 48 | u8 mux; /* qh multiplexed to hw_ep */ |
550a7375 FB |
49 | |
50 | unsigned offset; /* in urb->transfer_buffer */ | |
51 | unsigned segsize; /* current xfer fragment */ | |
52 | ||
53 | u8 type_reg; /* {rx,tx} type register */ | |
54 | u8 intv_reg; /* {rx,tx} interval register */ | |
55 | u8 addr_reg; /* device address register */ | |
56 | u8 h_addr_reg; /* hub address register */ | |
57 | u8 h_port_reg; /* hub port register */ | |
58 | ||
59 | u8 is_ready; /* safe to modify hw_ep */ | |
60 | u8 type; /* XFERTYPE_* */ | |
61 | u8 epnum; | |
a483d706 | 62 | u8 hb_mult; /* high bandwidth pkts per uf */ |
550a7375 FB |
63 | u16 maxpacket; |
64 | u16 frame; /* for periodic schedule */ | |
65 | unsigned iso_idx; /* in urb->iso_frame_desc[] */ | |
8e8a5516 | 66 | struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ |
ed74df12 | 67 | bool use_sg; /* to track urb using sglist */ |
550a7375 FB |
68 | }; |
69 | ||
70 | /* map from control or bulk queue head to the first qh on that ring */ | |
71 | static inline struct musb_qh *first_qh(struct list_head *q) | |
72 | { | |
73 | if (list_empty(q)) | |
74 | return NULL; | |
75 | return list_entry(q->next, struct musb_qh, ring); | |
76 | } | |
77 | ||
78 | ||
b7b741ea DM |
79 | #if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE) |
80 | extern struct musb *hcd_to_musb(struct usb_hcd *); | |
c2a2759d | 81 | extern irqreturn_t musb_h_ep0_irq(struct musb *); |
74c2e936 | 82 | extern int musb_host_alloc(struct musb *); |
2cc65fea DM |
83 | extern int musb_host_setup(struct musb *, int); |
84 | extern void musb_host_cleanup(struct musb *); | |
74c2e936 DM |
85 | extern void musb_host_tx(struct musb *, u8); |
86 | extern void musb_host_rx(struct musb *, u8); | |
87 | extern void musb_root_disconnect(struct musb *musb); | |
88 | extern void musb_host_free(struct musb *); | |
89 | extern void musb_host_cleanup(struct musb *); | |
c2a2759d DM |
90 | extern void musb_host_tx(struct musb *, u8); |
91 | extern void musb_host_rx(struct musb *, u8); | |
550a7375 | 92 | extern void musb_root_disconnect(struct musb *musb); |
0b3eba44 DM |
93 | extern void musb_host_resume_root_hub(struct musb *musb); |
94 | extern void musb_host_poke_root_hub(struct musb *musb); | |
94f72136 | 95 | extern void musb_port_suspend(struct musb *musb, bool do_suspend); |
b7b741ea DM |
96 | #else |
97 | static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) | |
98 | { | |
99 | return NULL; | |
100 | } | |
101 | ||
102 | static inline irqreturn_t musb_h_ep0_irq(struct musb *musb) | |
103 | { | |
104 | return 0; | |
105 | } | |
106 | ||
107 | static inline int musb_host_alloc(struct musb *musb) | |
108 | { | |
109 | return 0; | |
110 | } | |
111 | ||
2cc65fea DM |
112 | static inline int musb_host_setup(struct musb *musb, int power_budget) |
113 | { | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static inline void musb_host_cleanup(struct musb *musb) {} | |
b7b741ea DM |
118 | static inline void musb_host_free(struct musb *musb) {} |
119 | static inline void musb_host_tx(struct musb *musb, u8 epnum) {} | |
120 | static inline void musb_host_rx(struct musb *musb, u8 epnum) {} | |
121 | static inline void musb_root_disconnect(struct musb *musb) {} | |
122 | static inline void musb_host_resume_root_hub(struct musb *musb) {} | |
123 | static inline void musb_host_poll_rh_status(struct musb *musb) {} | |
124 | static inline void musb_host_poke_root_hub(struct musb *musb) {} | |
94f72136 | 125 | static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {} |
b7b741ea | 126 | #endif |
550a7375 FB |
127 | |
128 | struct usb_hcd; | |
129 | ||
130 | extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf); | |
131 | extern int musb_hub_control(struct usb_hcd *hcd, | |
132 | u16 typeReq, u16 wValue, u16 wIndex, | |
133 | char *buf, u16 wLength); | |
134 | ||
550a7375 FB |
135 | static inline struct urb *next_urb(struct musb_qh *qh) |
136 | { | |
550a7375 FB |
137 | struct list_head *queue; |
138 | ||
139 | if (!qh) | |
140 | return NULL; | |
141 | queue = &qh->hep->urb_list; | |
142 | if (list_empty(queue)) | |
143 | return NULL; | |
144 | return list_entry(queue->next, struct urb, urb_list); | |
550a7375 FB |
145 | } |
146 | ||
147 | #endif /* _MUSB_HOST_H */ |