projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| eb81955b IY |
1 | /* |
| 2 | * MUSB OTG driver peripheral defines | |
| 3 | * | |
| 4 | * Copyright 2005 Mentor Graphics Corporation | |
| 5 | * Copyright (C) 2005-2006 by Texas Instruments | |
| 6 | * Copyright (C) 2006-2007 Nokia Corporation | |
| 7 | * | |
| 5b8031cc | 8 | * SPDX-License-Identifier: GPL-2.0 |
| eb81955b IY |
9 | */ |
| 10 | ||
| 11 | #ifndef __MUSB_GADGET_H | |
| 12 | #define __MUSB_GADGET_H | |
| 13 | ||
| 14 | #include <linux/list.h> | |
| 15 | #ifdef __UBOOT__ | |
| 16 | #include <asm/byteorder.h> | |
| 1221ce45 | 17 | #include <linux/errno.h> |
| eb81955b IY |
18 | #include <linux/usb/ch9.h> |
| 19 | #include <linux/usb/gadget.h> | |
| 20 | #endif | |
| 21 | ||
| 22 | enum buffer_map_state { | |
| 23 | UN_MAPPED = 0, | |
| 24 | PRE_MAPPED, | |
| 25 | MUSB_MAPPED | |
| 26 | }; | |
| 27 | ||
| 28 | struct musb_request { | |
| 29 | struct usb_request request; | |
| 30 | struct list_head list; | |
| 31 | struct musb_ep *ep; | |
| 32 | struct musb *musb; | |
| 33 | u8 tx; /* endpoint direction */ | |
| 34 | u8 epnum; | |
| 35 | enum buffer_map_state map_state; | |
| 36 | }; | |
| 37 | ||
| 38 | static inline struct musb_request *to_musb_request(struct usb_request *req) | |
| 39 | { | |
| 40 | return req ? container_of(req, struct musb_request, request) : NULL; | |
| 41 | } | |
| 42 | ||
| 43 | extern struct usb_request * | |
| 44 | musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags); | |
| 45 | extern void musb_free_request(struct usb_ep *ep, struct usb_request *req); | |
| 46 | ||
| 47 | ||
| 48 | /* | |
| 49 | * struct musb_ep - peripheral side view of endpoint rx or tx side | |
| 50 | */ | |
| 51 | struct musb_ep { | |
| 52 | /* stuff towards the head is basically write-once. */ | |
| 53 | struct usb_ep end_point; | |
| 54 | char name[12]; | |
| 55 | struct musb_hw_ep *hw_ep; | |
| 56 | struct musb *musb; | |
| 57 | u8 current_epnum; | |
| 58 | ||
| 59 | /* ... when enabled/disabled ... */ | |
| 60 | u8 type; | |
| 61 | u8 is_in; | |
| 62 | u16 packet_sz; | |
| 63 | const struct usb_endpoint_descriptor *desc; | |
| 64 | struct dma_channel *dma; | |
| 65 | ||
| 66 | /* later things are modified based on usage */ | |
| 67 | struct list_head req_list; | |
| 68 | ||
| 69 | u8 wedged; | |
| 70 | ||
| 71 | /* true if lock must be dropped but req_list may not be advanced */ | |
| 72 | u8 busy; | |
| 73 | ||
| 74 | u8 hb_mult; | |
| 75 | }; | |
| 76 | ||
| 77 | static inline struct musb_ep *to_musb_ep(struct usb_ep *ep) | |
| 78 | { | |
| 79 | return ep ? container_of(ep, struct musb_ep, end_point) : NULL; | |
| 80 | } | |
| 81 | ||
| 82 | static inline struct musb_request *next_request(struct musb_ep *ep) | |
| 83 | { | |
| 84 | struct list_head *queue = &ep->req_list; | |
| 85 | ||
| 86 | if (list_empty(queue)) | |
| 87 | return NULL; | |
| 88 | return container_of(queue->next, struct musb_request, list); | |
| 89 | } | |
| 90 | ||
| 91 | extern void musb_g_tx(struct musb *musb, u8 epnum); | |
| 92 | extern void musb_g_rx(struct musb *musb, u8 epnum); | |
| 93 | ||
| 94 | extern const struct usb_ep_ops musb_g_ep0_ops; | |
| 95 | ||
| 96 | extern int musb_gadget_setup(struct musb *); | |
| 97 | extern void musb_gadget_cleanup(struct musb *); | |
| 98 | ||
| 99 | extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); | |
| 100 | ||
| 101 | extern void musb_ep_restart(struct musb *, struct musb_request *); | |
| 102 | ||
| 103 | #ifdef __UBOOT__ | |
| 104 | int musb_gadget_start(struct usb_gadget *g, struct usb_gadget_driver *driver); | |
| 105 | #endif | |
| 106 | #endif /* __MUSB_GADGET_H */ |