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39#ifndef __DRIVERS_USB_DWC3_GADGET_H
40#define __DRIVERS_USB_DWC3_GADGET_H
41
42#include <linux/list.h>
43#include <linux/usb/gadget.h>
44#include "io.h"
45
46struct dwc3;
47#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint))
48#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget))
49
50
51#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0)
52#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8)
53#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
54#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10)
55#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11)
56#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13)
57#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16)
58#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24)
59#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25)
60#define DWC3_DEPCFG_BULK_BASED (1 << 30)
61#define DWC3_DEPCFG_FIFO_BASED (1 << 31)
62
63
64#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1)
65#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3)
66#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17)
67#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22)
68#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26)
69
70#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31)
71
72#define DWC3_DEPCFG_ACTION_INIT (0 << 30)
73#define DWC3_DEPCFG_ACTION_RESTORE (1 << 30)
74#define DWC3_DEPCFG_ACTION_MODIFY (2 << 30)
75
76
77#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
78
79struct dwc3_gadget_ep_cmd_params {
80 u32 param2;
81 u32 param1;
82 u32 param0;
83};
84
85
86
87#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
88
89static inline struct dwc3_request *next_request(struct list_head *list)
90{
91 if (list_empty(list))
92 return NULL;
93
94 return list_first_entry(list, struct dwc3_request, list);
95}
96
97static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
98{
99 struct dwc3_ep *dep = req->dep;
100
101 req->queued = true;
102 list_move_tail(&req->list, &dep->req_queued);
103}
104
105void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
106 int status);
107
108int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode);
109int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
110
111void dwc3_ep0_interrupt(struct dwc3 *dwc,
112 const struct dwc3_event_depevt *event);
113void dwc3_ep0_out_start(struct dwc3 *dwc);
114int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
115int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
116 gfp_t gfp_flags);
117int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
118int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
119 unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
120int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param);
121
122
123
124
125
126
127
128
129static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
130{
131 u32 res_id;
132
133 res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
134
135 return DWC3_DEPCMD_GET_RSC_IDX(res_id);
136}
137
138
139
140
141
142static inline const char *dwc3_gadget_event_string(u8 event)
143{
144 switch (event) {
145 case DWC3_DEVICE_EVENT_DISCONNECT:
146 return "Disconnect";
147 case DWC3_DEVICE_EVENT_RESET:
148 return "Reset";
149 case DWC3_DEVICE_EVENT_CONNECT_DONE:
150 return "Connection Done";
151 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
152 return "Link Status Change";
153 case DWC3_DEVICE_EVENT_WAKEUP:
154 return "WakeUp";
155 case DWC3_DEVICE_EVENT_EOPF:
156 return "End-Of-Frame";
157 case DWC3_DEVICE_EVENT_SOF:
158 return "Start-Of-Frame";
159 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
160 return "Erratic Error";
161 case DWC3_DEVICE_EVENT_CMD_CMPL:
162 return "Command Complete";
163 case DWC3_DEVICE_EVENT_OVERFLOW:
164 return "Overflow";
165 }
166
167 return "UNKNOWN";
168}
169
170
171
172
173
174static inline const char *dwc3_ep_event_string(u8 event)
175{
176 switch (event) {
177 case DWC3_DEPEVT_XFERCOMPLETE:
178 return "Transfer Complete";
179 case DWC3_DEPEVT_XFERINPROGRESS:
180 return "Transfer In-Progress";
181 case DWC3_DEPEVT_XFERNOTREADY:
182 return "Transfer Not Ready";
183 case DWC3_DEPEVT_RXTXFIFOEVT:
184 return "FIFO";
185 case DWC3_DEPEVT_STREAMEVT:
186 return "Stream";
187 case DWC3_DEPEVT_EPCMDCMPLT:
188 return "Endpoint Command Complete";
189 }
190
191 return "UNKNOWN";
192}
193
194#endif
195
