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bfad65ee | 1 | /* |
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2 | * gadget.h - DesignWare USB3 DRD Gadget Header |
3 | * | |
4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
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5 | * |
6 | * Authors: Felipe Balbi <balbi@ti.com>, | |
7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
8 | * | |
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9 | * This program is free software: you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License version 2 of | |
11 | * the License as published by the Free Software Foundation. | |
72246da4 | 12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
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17 | */ |
18 | ||
19 | #ifndef __DRIVERS_USB_DWC3_GADGET_H | |
20 | #define __DRIVERS_USB_DWC3_GADGET_H | |
21 | ||
22 | #include <linux/list.h> | |
23 | #include <linux/usb/gadget.h> | |
24 | #include "io.h" | |
25 | ||
26 | struct dwc3; | |
27 | #define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) | |
28 | #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) | |
29 | ||
dc1c70a7 | 30 | /* DEPCFG parameter 1 */ |
7369090a | 31 | #define DWC3_DEPCFG_INT_NUM(n) (((n) & 0x1f) << 0) |
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32 | #define DWC3_DEPCFG_XFER_COMPLETE_EN BIT(8) |
33 | #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN BIT(9) | |
34 | #define DWC3_DEPCFG_XFER_NOT_READY_EN BIT(10) | |
35 | #define DWC3_DEPCFG_FIFO_ERROR_EN BIT(11) | |
36 | #define DWC3_DEPCFG_STREAM_EVENT_EN BIT(12) | |
7369090a | 37 | #define DWC3_DEPCFG_BINTERVAL_M1(n) (((n) & 0xff) << 16) |
ff3f0789 | 38 | #define DWC3_DEPCFG_STREAM_CAPABLE BIT(24) |
7369090a | 39 | #define DWC3_DEPCFG_EP_NUMBER(n) (((n) & 0x1f) << 25) |
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40 | #define DWC3_DEPCFG_BULK_BASED BIT(30) |
41 | #define DWC3_DEPCFG_FIFO_BASED BIT(31) | |
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42 | |
43 | /* DEPCFG parameter 0 */ | |
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44 | #define DWC3_DEPCFG_EP_TYPE(n) (((n) & 0x3) << 1) |
45 | #define DWC3_DEPCFG_MAX_PACKET_SIZE(n) (((n) & 0x7ff) << 3) | |
46 | #define DWC3_DEPCFG_FIFO_NUMBER(n) (((n) & 0x1f) << 17) | |
47 | #define DWC3_DEPCFG_BURST_SIZE(n) (((n) & 0xf) << 22) | |
dc1c70a7 | 48 | #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) |
2c61a8ef | 49 | /* This applies for core versions earlier than 1.94a */ |
ff3f0789 | 50 | #define DWC3_DEPCFG_IGN_SEQ_NUM BIT(31) |
2c61a8ef PZ |
51 | /* These apply for core versions 1.94a and later */ |
52 | #define DWC3_DEPCFG_ACTION_INIT (0 << 30) | |
ff3f0789 | 53 | #define DWC3_DEPCFG_ACTION_RESTORE BIT(30) |
2c61a8ef | 54 | #define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) |
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55 | |
56 | /* DEPXFERCFG parameter 0 */ | |
57 | #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) | |
72246da4 | 58 | |
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59 | /* -------------------------------------------------------------------------- */ |
60 | ||
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61 | #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) |
62 | ||
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63 | /** |
64 | * next_request - gets the next request on the given list | |
65 | * @list: the request list to operate on | |
66 | * | |
67 | * Caller should take care of locking. This function return %NULL or the first | |
68 | * request available on @list. | |
69 | */ | |
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70 | static inline struct dwc3_request *next_request(struct list_head *list) |
71 | { | |
785c91f8 | 72 | return list_first_entry_or_null(list, struct dwc3_request, list); |
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73 | } |
74 | ||
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75 | /** |
76 | * dwc3_gadget_move_started_request - move @req to the started_list | |
77 | * @req: the request to be moved | |
78 | * | |
79 | * Caller should take care of locking. This function will move @req from its | |
80 | * current list to the endpoint's started_list. | |
81 | */ | |
aa3342c8 | 82 | static inline void dwc3_gadget_move_started_request(struct dwc3_request *req) |
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83 | { |
84 | struct dwc3_ep *dep = req->dep; | |
85 | ||
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86 | req->started = true; |
87 | list_move_tail(&req->list, &dep->started_list); | |
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88 | } |
89 | ||
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90 | void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, |
91 | int status); | |
92 | ||
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93 | void dwc3_ep0_interrupt(struct dwc3 *dwc, |
94 | const struct dwc3_event_depevt *event); | |
72246da4 | 95 | void dwc3_ep0_out_start(struct dwc3 *dwc); |
33fb691b | 96 | int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); |
08f0d966 | 97 | int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); |
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98 | int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, |
99 | gfp_t gfp_flags); | |
7a608559 | 100 | int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); |
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101 | |
102 | /** | |
103 | * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW | |
bfad65ee | 104 | * @dep: dwc3 endpoint |
72246da4 | 105 | * |
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106 | * Caller should take care of locking. Returns the transfer resource |
107 | * index for a given endpoint. | |
72246da4 | 108 | */ |
2eb88016 | 109 | static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep) |
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110 | { |
111 | u32 res_id; | |
112 | ||
2eb88016 | 113 | res_id = dwc3_readl(dep->regs, DWC3_DEPCMD); |
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114 | |
115 | return DWC3_DEPCMD_GET_RSC_IDX(res_id); | |
116 | } | |
117 | ||
72246da4 | 118 | #endif /* __DRIVERS_USB_DWC3_GADGET_H */ |