1 /**
2 * core.h - DesignWare USB3 DRD Core Header
3 *
4 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
5 *
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
8 *
9 * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/core.h) and ported
10 * to uboot.
11 *
12 * commit 460d098cb6 : usb: dwc3: make HIRD threshold configurable
13 *
14 * SPDX-License-Identifier: GPL-2.0
15 *
16 */
17
18 #ifndef __DRIVERS_USB_DWC3_CORE_H
19 #define __DRIVERS_USB_DWC3_CORE_H
20
21 #include <linux/ioport.h>
22
23 #include <linux/usb/ch9.h>
24 #include <linux/usb/otg.h>
25 #include <linux/usb/phy.h>
26
27 #define DWC3_MSG_MAX 500
28
29 /* Global constants */
30 #define DWC3_EP0_BOUNCE_SIZE 512
31 #define DWC3_ENDPOINTS_NUM 32
32 #define DWC3_XHCI_RESOURCES_NUM 2
33
34 #define DWC3_SCRATCHBUF_SIZE 4096 /* each buffer is assumed to be 4KiB */
35 #define DWC3_EVENT_SIZE 4 /* bytes */
36 #define DWC3_EVENT_MAX_NUM 64 /* 2 events/endpoint */
37 #define DWC3_EVENT_BUFFERS_SIZE (DWC3_EVENT_SIZE * DWC3_EVENT_MAX_NUM)
38 #define DWC3_EVENT_TYPE_MASK 0xfe
39
40 #define DWC3_EVENT_TYPE_DEV 0
41 #define DWC3_EVENT_TYPE_CARKIT 3
42 #define DWC3_EVENT_TYPE_I2C 4
43
44 #define DWC3_DEVICE_EVENT_DISCONNECT 0
45 #define DWC3_DEVICE_EVENT_RESET 1
46 #define DWC3_DEVICE_EVENT_CONNECT_DONE 2
47 #define DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE 3
48 #define DWC3_DEVICE_EVENT_WAKEUP 4
49 #define DWC3_DEVICE_EVENT_HIBER_REQ 5
50 #define DWC3_DEVICE_EVENT_EOPF 6
51 #define DWC3_DEVICE_EVENT_SOF 7
52 #define DWC3_DEVICE_EVENT_ERRATIC_ERROR 9
53 #define DWC3_DEVICE_EVENT_CMD_CMPL 10
54 #define DWC3_DEVICE_EVENT_OVERFLOW 11
55
56 #define DWC3_GEVNTCOUNT_MASK 0xfffc
57 #define DWC3_GSNPSID_MASK 0xffff0000
58 #define DWC3_GSNPSREV_MASK 0xffff
59
60 /* DWC3 registers memory space boundries */
61 #define DWC3_XHCI_REGS_START 0x0
62 #define DWC3_XHCI_REGS_END 0x7fff
63 #define DWC3_GLOBALS_REGS_START 0xc100
64 #define DWC3_GLOBALS_REGS_END 0xc6ff
65 #define DWC3_DEVICE_REGS_START 0xc700
66 #define DWC3_DEVICE_REGS_END 0xcbff
67 #define DWC3_OTG_REGS_START 0xcc00
68 #define DWC3_OTG_REGS_END 0xccff
69
70 /* Global Registers */
71 #define DWC3_GSBUSCFG0 0xc100
72 #define DWC3_GSBUSCFG1 0xc104
73 #define DWC3_GTXTHRCFG 0xc108
74 #define DWC3_GRXTHRCFG 0xc10c
75 #define DWC3_GCTL 0xc110
76 #define DWC3_GEVTEN 0xc114
77 #define DWC3_GSTS 0xc118
78 #define DWC3_GUCTL1 0xc11c
79 #define DWC3_GSNPSID 0xc120
80 #define DWC3_GGPIO 0xc124
81 #define DWC3_GUID 0xc128
82 #define DWC3_GUCTL 0xc12c
83 #define DWC3_GBUSERRADDR0 0xc130
84 #define DWC3_GBUSERRADDR1 0xc134
85 #define DWC3_GPRTBIMAP0 0xc138
86 #define DWC3_GPRTBIMAP1 0xc13c
87 #define DWC3_GHWPARAMS0 0xc140
88 #define DWC3_GHWPARAMS1 0xc144
89 #define DWC3_GHWPARAMS2 0xc148
90 #define DWC3_GHWPARAMS3 0xc14c
91 #define DWC3_GHWPARAMS4 0xc150
92 #define DWC3_GHWPARAMS5 0xc154
93 #define DWC3_GHWPARAMS6 0xc158
94 #define DWC3_GHWPARAMS7 0xc15c
95 #define DWC3_GDBGFIFOSPACE 0xc160
96 #define DWC3_GDBGLTSSM 0xc164
97 #define DWC3_GPRTBIMAP_HS0 0xc180
98 #define DWC3_GPRTBIMAP_HS1 0xc184
99 #define DWC3_GPRTBIMAP_FS0 0xc188
100 #define DWC3_GPRTBIMAP_FS1 0xc18c
101
102 #define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
103 #define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
104
105 #define DWC3_GUSB2PHYACC(n) (0xc280 + (n * 0x04))
106
107 #define DWC3_GUSB3PIPECTL(n) (0xc2c0 + (n * 0x04))
108
109 #define DWC3_GTXFIFOSIZ(n) (0xc300 + (n * 0x04))
110 #define DWC3_GRXFIFOSIZ(n) (0xc380 + (n * 0x04))
111
112 #define DWC3_GEVNTADRLO(n) (0xc400 + (n * 0x10))
113 #define DWC3_GEVNTADRHI(n) (0xc404 + (n * 0x10))
114 #define DWC3_GEVNTSIZ(n) (0xc408 + (n * 0x10))
115 #define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
116
117 #define DWC3_GHWPARAMS8 0xc600
118
119 /* Device Registers */
120 #define DWC3_DCFG 0xc700
121 #define DWC3_DCTL 0xc704
122 #define DWC3_DEVTEN 0xc708
123 #define DWC3_DSTS 0xc70c
124 #define DWC3_DGCMDPAR 0xc710
125 #define DWC3_DGCMD 0xc714
126 #define DWC3_DALEPENA 0xc720
127 #define DWC3_DEPCMDPAR2(n) (0xc800 + (n * 0x10))
128 #define DWC3_DEPCMDPAR1(n) (0xc804 + (n * 0x10))
129 #define DWC3_DEPCMDPAR0(n) (0xc808 + (n * 0x10))
130 #define DWC3_DEPCMD(n) (0xc80c + (n * 0x10))
131
132 /* OTG Registers */
133 #define DWC3_OCFG 0xcc00
134 #define DWC3_OCTL 0xcc04
135 #define DWC3_OEVT 0xcc08
136 #define DWC3_OEVTEN 0xcc0C
137 #define DWC3_OSTS 0xcc10
138
139 /* Bit fields */
140
141 /* Global Configuration Register */
142 #define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19)
143 #define DWC3_GCTL_U2RSTECN (1 << 16)
144 #define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6)
145 #define DWC3_GCTL_CLK_BUS (0)
146 #define DWC3_GCTL_CLK_PIPE (1)
147 #define DWC3_GCTL_CLK_PIPEHALF (2)
148 #define DWC3_GCTL_CLK_MASK (3)
149
150 #define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12)) >> 12)
151 #define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12)
152 #define DWC3_GCTL_PRTCAP_HOST 1
153 #define DWC3_GCTL_PRTCAP_DEVICE 2
154 #define DWC3_GCTL_PRTCAP_OTG 3
155
156 #define DWC3_GCTL_CORESOFTRESET (1 << 11)
157 #define DWC3_GCTL_SOFITPSYNC (1 << 10)
158 #define DWC3_GCTL_SCALEDOWN(n) ((n) << 4)
159 #define DWC3_GCTL_SCALEDOWN_MASK DWC3_GCTL_SCALEDOWN(3)
160 #define DWC3_GCTL_DISSCRAMBLE (1 << 3)
161 #define DWC3_GCTL_U2EXIT_LFPS (1 << 2)
162 #define DWC3_GCTL_GBLHIBERNATIONEN (1 << 1)
163 #define DWC3_GCTL_DSBLCLKGTNG (1 << 0)
164
165 /* Global User Control 1 Register */
166 #define DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK BIT(26)
167
168 /* Global USB2 PHY Configuration Register */
169 #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
170 #define DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS (1 << 30)
171 #define DWC3_GUSB2PHYCFG_ENBLSLPM (1 << 8)
172 #define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
173 #define DWC3_GUSB2PHYCFG_PHYIF_8BIT (0 << 3)
174 #define DWC3_GUSB2PHYCFG_PHYIF_16BIT (1 << 3)
175 #define DWC3_GUSB2PHYCFG_PHYIF(n) ((n) << 3)
176 #define DWC3_GUSB2PHYCFG_PHYIF_MASK DWC3_GUSB2PHYCFG_PHYIF(1)
177 #define DWC3_GUSB2PHYCFG_USBTRDTIM(n) ((n) << 10)
178 #define DWC3_GUSB2PHYCFG_USBTRDTIM_MASK DWC3_GUSB2PHYCFG_USBTRDTIM(0xf)
179 #define USBTRDTIM_UTMI_8_BIT 9
180 #define USBTRDTIM_UTMI_16_BIT 5
181 #define UTMI_PHYIF_16_BIT 1
182 #define UTMI_PHYIF_8_BIT 0
183
184 /* Global USB3 PIPE Control Register */
185 #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
186 #define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29)
187 #define DWC3_GUSB3PIPECTL_REQP1P2P3 (1 << 24)
188 #define DWC3_GUSB3PIPECTL_DEP1P2P3(n) ((n) << 19)
189 #define DWC3_GUSB3PIPECTL_DEP1P2P3_MASK DWC3_GUSB3PIPECTL_DEP1P2P3(7)
190 #define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1)
191 #define DWC3_GUSB3PIPECTL_DEPOCHANGE (1 << 18)
192 #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
193 #define DWC3_GUSB3PIPECTL_LFPSFILT (1 << 9)
194 #define DWC3_GUSB3PIPECTL_RX_DETOPOLL (1 << 8)
195 #define DWC3_GUSB3PIPECTL_TX_DEEPH_MASK DWC3_GUSB3PIPECTL_TX_DEEPH(3)
196 #define DWC3_GUSB3PIPECTL_TX_DEEPH(n) ((n) << 1)
197
198 /* Global TX Fifo Size Register */
199 #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff)
200 #define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0xffff0000)
201
202 /* Global Event Size Registers */
203 #define DWC3_GEVNTSIZ_INTMASK (1 << 31)
204 #define DWC3_GEVNTSIZ_SIZE(n) ((n) & 0xffff)
205
206 /* Global HWPARAMS1 Register */
207 #define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24)) >> 24)
208 #define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
209 #define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
210 #define DWC3_GHWPARAMS1_EN_PWROPT_HIB 2
211 #define DWC3_GHWPARAMS1_PWROPT(n) ((n) << 24)
212 #define DWC3_GHWPARAMS1_PWROPT_MASK DWC3_GHWPARAMS1_PWROPT(3)
213
214 /* Global HWPARAMS3 Register */
215 #define DWC3_GHWPARAMS3_SSPHY_IFC(n) ((n) & 3)
216 #define DWC3_GHWPARAMS3_SSPHY_IFC_DIS 0
217 #define DWC3_GHWPARAMS3_SSPHY_IFC_ENA 1
218 #define DWC3_GHWPARAMS3_HSPHY_IFC(n) (((n) & (3 << 2)) >> 2)
219 #define DWC3_GHWPARAMS3_HSPHY_IFC_DIS 0
220 #define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI 1
221 #define DWC3_GHWPARAMS3_HSPHY_IFC_ULPI 2
222 #define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI 3
223 #define DWC3_GHWPARAMS3_FSPHY_IFC(n) (((n) & (3 << 4)) >> 4)
224 #define DWC3_GHWPARAMS3_FSPHY_IFC_DIS 0
225 #define DWC3_GHWPARAMS3_FSPHY_IFC_ENA 1
226
227 /* Global HWPARAMS4 Register */
228 #define DWC3_GHWPARAMS4_HIBER_SCRATCHBUFS(n) (((n) & (0x0f << 13)) >> 13)
229 #define DWC3_MAX_HIBER_SCRATCHBUFS 15
230
231 /* Global HWPARAMS6 Register */
232 #define DWC3_GHWPARAMS6_EN_FPGA (1 << 7)
233
234 /* Device Configuration Register */
235 #define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
236 #define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
237
238 #define DWC3_DCFG_SPEED_MASK (7 << 0)
239 #define DWC3_DCFG_SUPERSPEED (4 << 0)
240 #define DWC3_DCFG_HIGHSPEED (0 << 0)
241 #define DWC3_DCFG_FULLSPEED2 (1 << 0)
242 #define DWC3_DCFG_LOWSPEED (2 << 0)
243 #define DWC3_DCFG_FULLSPEED1 (3 << 0)
244
245 #define DWC3_DCFG_LPM_CAP (1 << 22)
246
247 /* Device Control Register */
248 #define DWC3_DCTL_RUN_STOP (1 << 31)
249 #define DWC3_DCTL_CSFTRST (1 << 30)
250 #define DWC3_DCTL_LSFTRST (1 << 29)
251
252 #define DWC3_DCTL_HIRD_THRES_MASK (0x1f << 24)
253 #define DWC3_DCTL_HIRD_THRES(n) ((n) << 24)
254
255 #define DWC3_DCTL_APPL1RES (1 << 23)
256
257 /* These apply for core versions 1.87a and earlier */
258 #define DWC3_DCTL_TRGTULST_MASK (0x0f << 17)
259 #define DWC3_DCTL_TRGTULST(n) ((n) << 17)
260 #define DWC3_DCTL_TRGTULST_U2 (DWC3_DCTL_TRGTULST(2))
261 #define DWC3_DCTL_TRGTULST_U3 (DWC3_DCTL_TRGTULST(3))
262 #define DWC3_DCTL_TRGTULST_SS_DIS (DWC3_DCTL_TRGTULST(4))
263 #define DWC3_DCTL_TRGTULST_RX_DET (DWC3_DCTL_TRGTULST(5))
264 #define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6))
265
266 /* These apply for core versions 1.94a and later */
267 #define DWC3_DCTL_LPM_ERRATA_MASK DWC3_DCTL_LPM_ERRATA(0xf)
268 #define DWC3_DCTL_LPM_ERRATA(n) ((n) << 20)
269
270 #define DWC3_DCTL_KEEP_CONNECT (1 << 19)
271 #define DWC3_DCTL_L1_HIBER_EN (1 << 18)
272 #define DWC3_DCTL_CRS (1 << 17)
273 #define DWC3_DCTL_CSS (1 << 16)
274
275 #define DWC3_DCTL_INITU2ENA (1 << 12)
276 #define DWC3_DCTL_ACCEPTU2ENA (1 << 11)
277 #define DWC3_DCTL_INITU1ENA (1 << 10)
278 #define DWC3_DCTL_ACCEPTU1ENA (1 << 9)
279 #define DWC3_DCTL_TSTCTRL_MASK (0xf << 1)
280
281 #define DWC3_DCTL_ULSTCHNGREQ_MASK (0x0f << 5)
282 #define DWC3_DCTL_ULSTCHNGREQ(n) (((n) << 5) & DWC3_DCTL_ULSTCHNGREQ_MASK)
283
284 #define DWC3_DCTL_ULSTCHNG_NO_ACTION (DWC3_DCTL_ULSTCHNGREQ(0))
285 #define DWC3_DCTL_ULSTCHNG_SS_DISABLED (DWC3_DCTL_ULSTCHNGREQ(4))
286 #define DWC3_DCTL_ULSTCHNG_RX_DETECT (DWC3_DCTL_ULSTCHNGREQ(5))
287 #define DWC3_DCTL_ULSTCHNG_SS_INACTIVE (DWC3_DCTL_ULSTCHNGREQ(6))
288 #define DWC3_DCTL_ULSTCHNG_RECOVERY (DWC3_DCTL_ULSTCHNGREQ(8))
289 #define DWC3_DCTL_ULSTCHNG_COMPLIANCE (DWC3_DCTL_ULSTCHNGREQ(10))
290 #define DWC3_DCTL_ULSTCHNG_LOOPBACK (DWC3_DCTL_ULSTCHNGREQ(11))
291
292 /* Device Event Enable Register */
293 #define DWC3_DEVTEN_VNDRDEVTSTRCVEDEN (1 << 12)
294 #define DWC3_DEVTEN_EVNTOVERFLOWEN (1 << 11)
295 #define DWC3_DEVTEN_CMDCMPLTEN (1 << 10)
296 #define DWC3_DEVTEN_ERRTICERREN (1 << 9)
297 #define DWC3_DEVTEN_SOFEN (1 << 7)
298 #define DWC3_DEVTEN_EOPFEN (1 << 6)
299 #define DWC3_DEVTEN_HIBERNATIONREQEVTEN (1 << 5)
300 #define DWC3_DEVTEN_WKUPEVTEN (1 << 4)
301 #define DWC3_DEVTEN_ULSTCNGEN (1 << 3)
302 #define DWC3_DEVTEN_CONNECTDONEEN (1 << 2)
303 #define DWC3_DEVTEN_USBRSTEN (1 << 1)
304 #define DWC3_DEVTEN_DISCONNEVTEN (1 << 0)
305
306 /* Device Status Register */
307 #define DWC3_DSTS_DCNRD (1 << 29)
308
309 /* This applies for core versions 1.87a and earlier */
310 #define DWC3_DSTS_PWRUPREQ (1 << 24)
311
312 /* These apply for core versions 1.94a and later */
313 #define DWC3_DSTS_RSS (1 << 25)
314 #define DWC3_DSTS_SSS (1 << 24)
315
316 #define DWC3_DSTS_COREIDLE (1 << 23)
317 #define DWC3_DSTS_DEVCTRLHLT (1 << 22)
318
319 #define DWC3_DSTS_USBLNKST_MASK (0x0f << 18)
320 #define DWC3_DSTS_USBLNKST(n) (((n) & DWC3_DSTS_USBLNKST_MASK) >> 18)
321
322 #define DWC3_DSTS_RXFIFOEMPTY (1 << 17)
323
324 #define DWC3_DSTS_SOFFN_MASK (0x3fff << 3)
325 #define DWC3_DSTS_SOFFN(n) (((n) & DWC3_DSTS_SOFFN_MASK) >> 3)
326
327 #define DWC3_DSTS_CONNECTSPD (7 << 0)
328
329 #define DWC3_DSTS_SUPERSPEED (4 << 0)
330 #define DWC3_DSTS_HIGHSPEED (0 << 0)
331 #define DWC3_DSTS_FULLSPEED2 (1 << 0)
332 #define DWC3_DSTS_LOWSPEED (2 << 0)
333 #define DWC3_DSTS_FULLSPEED1 (3 << 0)
334
335 /* Device Generic Command Register */
336 #define DWC3_DGCMD_SET_LMP 0x01
337 #define DWC3_DGCMD_SET_PERIODIC_PAR 0x02
338 #define DWC3_DGCMD_XMIT_FUNCTION 0x03
339
340 /* These apply for core versions 1.94a and later */
341 #define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO 0x04
342 #define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI 0x05
343
344 #define DWC3_DGCMD_SELECTED_FIFO_FLUSH 0x09
345 #define DWC3_DGCMD_ALL_FIFO_FLUSH 0x0a
346 #define DWC3_DGCMD_SET_ENDPOINT_NRDY 0x0c
347 #define DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK 0x10
348
349 #define DWC3_DGCMD_STATUS(n) (((n) >> 15) & 1)
350 #define DWC3_DGCMD_CMDACT (1 << 10)
351 #define DWC3_DGCMD_CMDIOC (1 << 8)
352
353 /* Device Generic Command Parameter Register */
354 #define DWC3_DGCMDPAR_FORCE_LINKPM_ACCEPT (1 << 0)
355 #define DWC3_DGCMDPAR_FIFO_NUM(n) ((n) << 0)
356 #define DWC3_DGCMDPAR_RX_FIFO (0 << 5)
357 #define DWC3_DGCMDPAR_TX_FIFO (1 << 5)
358 #define DWC3_DGCMDPAR_LOOPBACK_DIS (0 << 0)
359 #define DWC3_DGCMDPAR_LOOPBACK_ENA (1 << 0)
360
361 /* Device Endpoint Command Register */
362 #define DWC3_DEPCMD_PARAM_SHIFT 16
363 #define DWC3_DEPCMD_PARAM(x) ((x) << DWC3_DEPCMD_PARAM_SHIFT)
364 #define DWC3_DEPCMD_GET_RSC_IDX(x) (((x) >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
365 #define DWC3_DEPCMD_STATUS(x) (((x) >> 15) & 1)
366 #define DWC3_DEPCMD_HIPRI_FORCERM (1 << 11)
367 #define DWC3_DEPCMD_CMDACT (1 << 10)
368 #define DWC3_DEPCMD_CMDIOC (1 << 8)
369
370 #define DWC3_DEPCMD_DEPSTARTCFG (0x09 << 0)
371 #define DWC3_DEPCMD_ENDTRANSFER (0x08 << 0)
372 #define DWC3_DEPCMD_UPDATETRANSFER (0x07 << 0)
373 #define DWC3_DEPCMD_STARTTRANSFER (0x06 << 0)
374 #define DWC3_DEPCMD_CLEARSTALL (0x05 << 0)
375 #define DWC3_DEPCMD_SETSTALL (0x04 << 0)
376 /* This applies for core versions 1.90a and earlier */
377 #define DWC3_DEPCMD_GETSEQNUMBER (0x03 << 0)
378 /* This applies for core versions 1.94a and later */
379 #define DWC3_DEPCMD_GETEPSTATE (0x03 << 0)
380 #define DWC3_DEPCMD_SETTRANSFRESOURCE (0x02 << 0)
381 #define DWC3_DEPCMD_SETEPCONFIG (0x01 << 0)
382
383 /* The EP number goes 0..31 so ep0 is always out and ep1 is always in */
384 #define DWC3_DALEPENA_EP(n) (1 << n)
385
386 #define DWC3_DEPCMD_TYPE_CONTROL 0
387 #define DWC3_DEPCMD_TYPE_ISOC 1
388 #define DWC3_DEPCMD_TYPE_BULK 2
389 #define DWC3_DEPCMD_TYPE_INTR 3
390
391 /* Structures */
392
393 struct dwc3_trb;
394
395 /**
396 * struct dwc3_event_buffer - Software event buffer representation
397 * @buf: _THE_ buffer
398 * @length: size of this buffer
399 * @lpos: event offset
400 * @count: cache of last read event count register
401 * @flags: flags related to this event buffer
402 * @dma: dma_addr_t
403 * @dwc: pointer to DWC controller
404 */
405 struct dwc3_event_buffer {
406 void *buf;
407 unsigned length;
408 unsigned int lpos;
409 unsigned int count;
410 unsigned int flags;
411
412 #define DWC3_EVENT_PENDING (1UL << 0)
413
414 dma_addr_t dma;
415
416 struct dwc3 *dwc;
417 };
418
419 #define DWC3_EP_FLAG_STALLED (1 << 0)
420 #define DWC3_EP_FLAG_WEDGED (1 << 1)
421
422 #define DWC3_EP_DIRECTION_TX true
423 #define DWC3_EP_DIRECTION_RX false
424
425 #define DWC3_TRB_NUM 32
426 #define DWC3_TRB_MASK (DWC3_TRB_NUM - 1)
427
428 /**
429 * struct dwc3_ep - device side endpoint representation
430 * @endpoint: usb endpoint
431 * @request_list: list of requests for this endpoint
432 * @req_queued: list of requests on this ep which have TRBs setup
433 * @trb_pool: array of transaction buffers
434 * @trb_pool_dma: dma address of @trb_pool
435 * @free_slot: next slot which is going to be used
436 * @busy_slot: first slot which is owned by HW
437 * @desc: usb_endpoint_descriptor pointer
438 * @dwc: pointer to DWC controller
439 * @saved_state: ep state saved during hibernation
440 * @flags: endpoint flags (wedged, stalled, ...)
441 * @current_trb: index of current used trb
442 * @number: endpoint number (1 - 15)
443 * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
444 * @resource_index: Resource transfer index
445 * @interval: the interval on which the ISOC transfer is started
446 * @name: a human readable name e.g. ep1out-bulk
447 * @direction: true for TX, false for RX
448 * @stream_capable: true when streams are enabled
449 */
450 struct dwc3_ep {
451 struct usb_ep endpoint;
452 struct list_head request_list;
453 struct list_head req_queued;
454
455 struct dwc3_trb *trb_pool;
456 dma_addr_t trb_pool_dma;
457 u32 free_slot;
458 u32 busy_slot;
459 const struct usb_ss_ep_comp_descriptor *comp_desc;
460 struct dwc3 *dwc;
461
462 u32 saved_state;
463 unsigned flags;
464 #define DWC3_EP_ENABLED (1 << 0)
465 #define DWC3_EP_STALL (1 << 1)
466 #define DWC3_EP_WEDGE (1 << 2)
467 #define DWC3_EP_BUSY (1 << 4)
468 #define DWC3_EP_PENDING_REQUEST (1 << 5)
469 #define DWC3_EP_MISSED_ISOC (1 << 6)
470
471 /* This last one is specific to EP0 */
472 #define DWC3_EP0_DIR_IN (1 << 31)
473
474 unsigned current_trb;
475
476 u8 number;
477 u8 type;
478 u8 resource_index;
479 u32 interval;
480
481 char name[20];
482
483 unsigned direction:1;
484 unsigned stream_capable:1;
485 };
486
487 enum dwc3_phy {
488 DWC3_PHY_UNKNOWN = 0,
489 DWC3_PHY_USB3,
490 DWC3_PHY_USB2,
491 };
492
493 enum dwc3_ep0_next {
494 DWC3_EP0_UNKNOWN = 0,
495 DWC3_EP0_COMPLETE,
496 DWC3_EP0_NRDY_DATA,
497 DWC3_EP0_NRDY_STATUS,
498 };
499
500 enum dwc3_ep0_state {
501 EP0_UNCONNECTED = 0,
502 EP0_SETUP_PHASE,
503 EP0_DATA_PHASE,
504 EP0_STATUS_PHASE,
505 };
506
507 enum dwc3_link_state {
508 /* In SuperSpeed */
509 DWC3_LINK_STATE_U0 = 0x00, /* in HS, means ON */
510 DWC3_LINK_STATE_U1 = 0x01,
511 DWC3_LINK_STATE_U2 = 0x02, /* in HS, means SLEEP */
512 DWC3_LINK_STATE_U3 = 0x03, /* in HS, means SUSPEND */
513 DWC3_LINK_STATE_SS_DIS = 0x04,
514 DWC3_LINK_STATE_RX_DET = 0x05, /* in HS, means Early Suspend */
515 DWC3_LINK_STATE_SS_INACT = 0x06,
516 DWC3_LINK_STATE_POLL = 0x07,
517 DWC3_LINK_STATE_RECOV = 0x08,
518 DWC3_LINK_STATE_HRESET = 0x09,
519 DWC3_LINK_STATE_CMPLY = 0x0a,
520 DWC3_LINK_STATE_LPBK = 0x0b,
521 DWC3_LINK_STATE_RESET = 0x0e,
522 DWC3_LINK_STATE_RESUME = 0x0f,
523 DWC3_LINK_STATE_MASK = 0x0f,
524 };
525
526 /* TRB Length, PCM and Status */
527 #define DWC3_TRB_SIZE_MASK (0x00ffffff)
528 #define DWC3_TRB_SIZE_LENGTH(n) ((n) & DWC3_TRB_SIZE_MASK)
529 #define DWC3_TRB_SIZE_PCM1(n) (((n) & 0x03) << 24)
530 #define DWC3_TRB_SIZE_TRBSTS(n) (((n) & (0x0f << 28)) >> 28)
531
532 #define DWC3_TRBSTS_OK 0
533 #define DWC3_TRBSTS_MISSED_ISOC 1
534 #define DWC3_TRBSTS_SETUP_PENDING 2
535 #define DWC3_TRB_STS_XFER_IN_PROG 4
536
537 /* TRB Control */
538 #define DWC3_TRB_CTRL_HWO (1 << 0)
539 #define DWC3_TRB_CTRL_LST (1 << 1)
540 #define DWC3_TRB_CTRL_CHN (1 << 2)
541 #define DWC3_TRB_CTRL_CSP (1 << 3)
542 #define DWC3_TRB_CTRL_TRBCTL(n) (((n) & 0x3f) << 4)
543 #define DWC3_TRB_CTRL_ISP_IMI (1 << 10)
544 #define DWC3_TRB_CTRL_IOC (1 << 11)
545 #define DWC3_TRB_CTRL_SID_SOFN(n) (((n) & 0xffff) << 14)
546
547 #define DWC3_TRBCTL_NORMAL DWC3_TRB_CTRL_TRBCTL(1)
548 #define DWC3_TRBCTL_CONTROL_SETUP DWC3_TRB_CTRL_TRBCTL(2)
549 #define DWC3_TRBCTL_CONTROL_STATUS2 DWC3_TRB_CTRL_TRBCTL(3)
550 #define DWC3_TRBCTL_CONTROL_STATUS3 DWC3_TRB_CTRL_TRBCTL(4)
551 #define DWC3_TRBCTL_CONTROL_DATA DWC3_TRB_CTRL_TRBCTL(5)
552 #define DWC3_TRBCTL_ISOCHRONOUS_FIRST DWC3_TRB_CTRL_TRBCTL(6)
553 #define DWC3_TRBCTL_ISOCHRONOUS DWC3_TRB_CTRL_TRBCTL(7)
554 #define DWC3_TRBCTL_LINK_TRB DWC3_TRB_CTRL_TRBCTL(8)
555
556 /**
557 * struct dwc3_trb - transfer request block (hw format)
558 * @bpl: DW0-3
559 * @bph: DW4-7
560 * @size: DW8-B
561 * @trl: DWC-F
562 */
563 struct dwc3_trb {
564 u32 bpl;
565 u32 bph;
566 u32 size;
567 u32 ctrl;
568 } __packed;
569
570 /**
571 * dwc3_hwparams - copy of HWPARAMS registers
572 * @hwparams0 - GHWPARAMS0
573 * @hwparams1 - GHWPARAMS1
574 * @hwparams2 - GHWPARAMS2
575 * @hwparams3 - GHWPARAMS3
576 * @hwparams4 - GHWPARAMS4
577 * @hwparams5 - GHWPARAMS5
578 * @hwparams6 - GHWPARAMS6
579 * @hwparams7 - GHWPARAMS7
580 * @hwparams8 - GHWPARAMS8
581 */
582 struct dwc3_hwparams {
583 u32 hwparams0;
584 u32 hwparams1;
585 u32 hwparams2;
586 u32 hwparams3;
587 u32 hwparams4;
588 u32 hwparams5;
589 u32 hwparams6;
590 u32 hwparams7;
591 u32 hwparams8;
592 };
593
594 /* HWPARAMS0 */
595 #define DWC3_MODE(n) ((n) & 0x7)
596
597 #define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8)
598
599 /* HWPARAMS1 */
600 #define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15)
601
602 /* HWPARAMS3 */
603 #define DWC3_NUM_IN_EPS_MASK (0x1f << 18)
604 #define DWC3_NUM_EPS_MASK (0x3f << 12)
605 #define DWC3_NUM_EPS(p) (((p)->hwparams3 & \
606 (DWC3_NUM_EPS_MASK)) >> 12)
607 #define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \
608 (DWC3_NUM_IN_EPS_MASK)) >> 18)
609
610 /* HWPARAMS7 */
611 #define DWC3_RAM1_DEPTH(n) ((n) & 0xffff)
612
613 struct dwc3_request {
614 struct usb_request request;
615 struct list_head list;
616 struct dwc3_ep *dep;
617 u32 start_slot;
618
619 u8 epnum;
620 struct dwc3_trb *trb;
621 dma_addr_t trb_dma;
622
623 unsigned direction:1;
624 unsigned mapped:1;
625 unsigned queued:1;
626 };
627
628 /*
629 * struct dwc3_scratchpad_array - hibernation scratchpad array
630 * (format defined by hw)
631 */
632 struct dwc3_scratchpad_array {
633 __le64 dma_adr[DWC3_MAX_HIBER_SCRATCHBUFS];
634 };
635
636 /**
637 * struct dwc3 - representation of our controller
638 * @ctrl_req: usb control request which is used for ep0
639 * @ep0_trb: trb which is used for the ctrl_req
640 * @ep0_bounce: bounce buffer for ep0
641 * @setup_buf: used while precessing STD USB requests
642 * @ctrl_req_addr: dma address of ctrl_req
643 * @ep0_trb: dma address of ep0_trb
644 * @ep0_usb_req: dummy req used while handling STD USB requests
645 * @ep0_bounce_addr: dma address of ep0_bounce
646 * @scratch_addr: dma address of scratchbuf
647 * @lock: for synchronizing
648 * @dev: pointer to our struct device
649 * @xhci: pointer to our xHCI child
650 * @event_buffer_list: a list of event buffers
651 * @gadget: device side representation of the peripheral controller
652 * @gadget_driver: pointer to the gadget driver
653 * @regs: base address for our registers
654 * @regs_size: address space size
655 * @nr_scratch: number of scratch buffers
656 * @num_event_buffers: calculated number of event buffers
657 * @u1u2: only used on revisions <1.83a for workaround
658 * @maximum_speed: maximum speed requested (mainly for testing purposes)
659 * @revision: revision register contents
660 * @dr_mode: requested mode of operation
661 * @hsphy_mode: UTMI phy mode, one of following:
662 * - USBPHY_INTERFACE_MODE_UTMI
663 * - USBPHY_INTERFACE_MODE_UTMIW
664 * @dcfg: saved contents of DCFG register
665 * @gctl: saved contents of GCTL register
666 * @isoch_delay: wValue from Set Isochronous Delay request;
667 * @u2sel: parameter from Set SEL request.
668 * @u2pel: parameter from Set SEL request.
669 * @u1sel: parameter from Set SEL request.
670 * @u1pel: parameter from Set SEL request.
671 * @num_out_eps: number of out endpoints
672 * @num_in_eps: number of in endpoints
673 * @ep0_next_event: hold the next expected event
674 * @ep0state: state of endpoint zero
675 * @link_state: link state
676 * @speed: device speed (super, high, full, low)
677 * @mem: points to start of memory which is used for this struct.
678 * @hwparams: copy of hwparams registers
679 * @root: debugfs root folder pointer
680 * @regset: debugfs pointer to regdump file
681 * @test_mode: true when we're entering a USB test mode
682 * @test_mode_nr: test feature selector
683 * @lpm_nyet_threshold: LPM NYET response threshold
684 * @hird_threshold: HIRD threshold
685 * @delayed_status: true when gadget driver asks for delayed status
686 * @ep0_bounced: true when we used bounce buffer
687 * @ep0_expect_in: true when we expect a DATA IN transfer
688 * @has_hibernation: true when dwc3 was configured with Hibernation
689 * @has_lpm_erratum: true when core was configured with LPM Erratum. Note that
690 * there's now way for software to detect this in runtime.
691 * @is_utmi_l1_suspend: the core asserts output signal
692 * 0 - utmi_sleep_n
693 * 1 - utmi_l1_suspend_n
694 * @is_selfpowered: true when we are selfpowered
695 * @is_fpga: true when we are using the FPGA board
696 * @needs_fifo_resize: not all users might want fifo resizing, flag it
697 * @pullups_connected: true when Run/Stop bit is set
698 * @resize_fifos: tells us it's ok to reconfigure our TxFIFO sizes.
699 * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
700 * @start_config_issued: true when StartConfig command has been issued
701 * @three_stage_setup: set if we perform a three phase setup
702 * @disable_scramble_quirk: set if we enable the disable scramble quirk
703 * @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
704 * @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
705 * @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk
706 * @del_p1p2p3_quirk: set if we enable delay p1p2p3 quirk
707 * @del_phy_power_chg_quirk: set if we enable delay phy power change quirk
708 * @lfps_filter_quirk: set if we enable LFPS filter quirk
709 * @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
710 * @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
711 * @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
712 * @dis_u1u2_quirk: set if we reject transition to U1 or U2 state
713 * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk
714 * @tx_de_emphasis: Tx de-emphasis value
715 * 0 - -6dB de-emphasis
716 * 1 - -3.5dB de-emphasis
717 * 2 - No de-emphasis
718 * 3 - Reserved
719 * @index: index of _this_ controller
720 * @list: to maintain the list of dwc3 controllers
721 */
722 struct dwc3 {
723 struct usb_ctrlrequest *ctrl_req;
724 struct dwc3_trb *ep0_trb;
725 void *ep0_bounce;
726 void *scratchbuf;
727 u8 *setup_buf;
728 dma_addr_t ctrl_req_addr;
729 dma_addr_t ep0_trb_addr;
730 dma_addr_t ep0_bounce_addr;
731 dma_addr_t scratch_addr;
732 struct dwc3_request ep0_usb_req;
733
734 /* device lock */
735 spinlock_t lock;
736
737 #if defined(__UBOOT__) && CONFIG_IS_ENABLED(DM_USB)
738 struct udevice *dev;
739 #else
740 struct device *dev;
741 #endif
742
743 struct platform_device *xhci;
744 struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM];
745
746 struct dwc3_event_buffer **ev_buffs;
747 struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM];
748
749 struct usb_gadget gadget;
750 struct usb_gadget_driver *gadget_driver;
751
752 void __iomem *regs;
753 size_t regs_size;
754
755 enum usb_dr_mode dr_mode;
756 enum usb_phy_interface hsphy_mode;
757
758 /* used for suspend/resume */
759 u32 dcfg;
760 u32 gctl;
761
762 u32 nr_scratch;
763 u32 num_event_buffers;
764 u32 u1u2;
765 u32 maximum_speed;
766 u32 revision;
767
768 #define DWC3_REVISION_173A 0x5533173a
769 #define DWC3_REVISION_175A 0x5533175a
770 #define DWC3_REVISION_180A 0x5533180a
771 #define DWC3_REVISION_183A 0x5533183a
772 #define DWC3_REVISION_185A 0x5533185a
773 #define DWC3_REVISION_187A 0x5533187a
774 #define DWC3_REVISION_188A 0x5533188a
775 #define DWC3_REVISION_190A 0x5533190a
776 #define DWC3_REVISION_194A 0x5533194a
777 #define DWC3_REVISION_200A 0x5533200a
778 #define DWC3_REVISION_202A 0x5533202a
779 #define DWC3_REVISION_210A 0x5533210a
780 #define DWC3_REVISION_220A 0x5533220a
781 #define DWC3_REVISION_230A 0x5533230a
782 #define DWC3_REVISION_240A 0x5533240a
783 #define DWC3_REVISION_250A 0x5533250a
784 #define DWC3_REVISION_260A 0x5533260a
785 #define DWC3_REVISION_270A 0x5533270a
786 #define DWC3_REVISION_280A 0x5533280a
787
788 enum dwc3_ep0_next ep0_next_event;
789 enum dwc3_ep0_state ep0state;
790 enum dwc3_link_state link_state;
791
792 u16 isoch_delay;
793 u16 u2sel;
794 u16 u2pel;
795 u8 u1sel;
796 u8 u1pel;
797
798 u8 speed;
799
800 u8 num_out_eps;
801 u8 num_in_eps;
802
803 void *mem;
804
805 struct dwc3_hwparams hwparams;
806 struct dentry *root;
807 struct debugfs_regset32 *regset;
808
809 u8 test_mode;
810 u8 test_mode_nr;
811 u8 lpm_nyet_threshold;
812 u8 hird_threshold;
813
814 unsigned delayed_status:1;
815 unsigned ep0_bounced:1;
816 unsigned ep0_expect_in:1;
817 unsigned has_hibernation:1;
818 unsigned has_lpm_erratum:1;
819 unsigned is_utmi_l1_suspend:1;
820 unsigned is_selfpowered:1;
821 unsigned is_fpga:1;
822 unsigned needs_fifo_resize:1;
823 unsigned pullups_connected:1;
824 unsigned resize_fifos:1;
825 unsigned setup_packet_pending:1;
826 unsigned start_config_issued:1;
827 unsigned three_stage_setup:1;
828
829 unsigned disable_scramble_quirk:1;
830 unsigned u2exit_lfps_quirk:1;
831 unsigned u2ss_inp3_quirk:1;
832 unsigned req_p1p2p3_quirk:1;
833 unsigned del_p1p2p3_quirk:1;
834 unsigned del_phy_power_chg_quirk:1;
835 unsigned lfps_filter_quirk:1;
836 unsigned rx_detect_poll_quirk:1;
837 unsigned dis_u3_susphy_quirk:1;
838 unsigned dis_u2_susphy_quirk:1;
839 unsigned dis_u1u2_quirk:1;
840 unsigned dis_enblslpm_quirk:1;
841 unsigned dis_u2_freeclk_exists_quirk:1;
842
843 unsigned tx_de_emphasis_quirk:1;
844 unsigned tx_de_emphasis:2;
845 unsigned usb2_phyif_utmi_width:5;
846 int index;
847 struct list_head list;
848 };
849
850 /* -------------------------------------------------------------------------- */
851
852 /* -------------------------------------------------------------------------- */
853
854 struct dwc3_event_type {
855 u32 is_devspec:1;
856 u32 type:7;
857 u32 reserved8_31:24;
858 } __packed;
859
860 #define DWC3_DEPEVT_XFERCOMPLETE 0x01
861 #define DWC3_DEPEVT_XFERINPROGRESS 0x02
862 #define DWC3_DEPEVT_XFERNOTREADY 0x03
863 #define DWC3_DEPEVT_RXTXFIFOEVT 0x04
864 #define DWC3_DEPEVT_STREAMEVT 0x06
865 #define DWC3_DEPEVT_EPCMDCMPLT 0x07
866
867 /**
868 * dwc3_ep_event_string - returns event name
869 * @event: then event code
870 */
dwc3_ep_event_string(u8 event)871 static inline const char *dwc3_ep_event_string(u8 event)
872 {
873 switch (event) {
874 case DWC3_DEPEVT_XFERCOMPLETE:
875 return "Transfer Complete";
876 case DWC3_DEPEVT_XFERINPROGRESS:
877 return "Transfer In-Progress";
878 case DWC3_DEPEVT_XFERNOTREADY:
879 return "Transfer Not Ready";
880 case DWC3_DEPEVT_RXTXFIFOEVT:
881 return "FIFO";
882 case DWC3_DEPEVT_STREAMEVT:
883 return "Stream";
884 case DWC3_DEPEVT_EPCMDCMPLT:
885 return "Endpoint Command Complete";
886 }
887
888 return "UNKNOWN";
889 }
890
891 /**
892 * struct dwc3_event_depvt - Device Endpoint Events
893 * @one_bit: indicates this is an endpoint event (not used)
894 * @endpoint_number: number of the endpoint
895 * @endpoint_event: The event we have:
896 * 0x00 - Reserved
897 * 0x01 - XferComplete
898 * 0x02 - XferInProgress
899 * 0x03 - XferNotReady
900 * 0x04 - RxTxFifoEvt (IN->Underrun, OUT->Overrun)
901 * 0x05 - Reserved
902 * 0x06 - StreamEvt
903 * 0x07 - EPCmdCmplt
904 * @reserved11_10: Reserved, don't use.
905 * @status: Indicates the status of the event. Refer to databook for
906 * more information.
907 * @parameters: Parameters of the current event. Refer to databook for
908 * more information.
909 */
910 struct dwc3_event_depevt {
911 u32 one_bit:1;
912 u32 endpoint_number:5;
913 u32 endpoint_event:4;
914 u32 reserved11_10:2;
915 u32 status:4;
916
917 /* Within XferNotReady */
918 #define DEPEVT_STATUS_TRANSFER_ACTIVE (1 << 3)
919
920 /* Within XferComplete */
921 #define DEPEVT_STATUS_BUSERR (1 << 0)
922 #define DEPEVT_STATUS_SHORT (1 << 1)
923 #define DEPEVT_STATUS_IOC (1 << 2)
924 #define DEPEVT_STATUS_LST (1 << 3)
925
926 /* Stream event only */
927 #define DEPEVT_STREAMEVT_FOUND 1
928 #define DEPEVT_STREAMEVT_NOTFOUND 2
929
930 /* Control-only Status */
931 #define DEPEVT_STATUS_CONTROL_DATA 1
932 #define DEPEVT_STATUS_CONTROL_STATUS 2
933
934 u32 parameters:16;
935 } __packed;
936
937 /**
938 * struct dwc3_event_devt - Device Events
939 * @one_bit: indicates this is a non-endpoint event (not used)
940 * @device_event: indicates it's a device event. Should read as 0x00
941 * @type: indicates the type of device event.
942 * 0 - DisconnEvt
943 * 1 - USBRst
944 * 2 - ConnectDone
945 * 3 - ULStChng
946 * 4 - WkUpEvt
947 * 5 - Reserved
948 * 6 - EOPF
949 * 7 - SOF
950 * 8 - Reserved
951 * 9 - ErrticErr
952 * 10 - CmdCmplt
953 * 11 - EvntOverflow
954 * 12 - VndrDevTstRcved
955 * @reserved15_12: Reserved, not used
956 * @event_info: Information about this event
957 * @reserved31_25: Reserved, not used
958 */
959 struct dwc3_event_devt {
960 u32 one_bit:1;
961 u32 device_event:7;
962 u32 type:4;
963 u32 reserved15_12:4;
964 u32 event_info:9;
965 u32 reserved31_25:7;
966 } __packed;
967
968 /**
969 * struct dwc3_event_gevt - Other Core Events
970 * @one_bit: indicates this is a non-endpoint event (not used)
971 * @device_event: indicates it's (0x03) Carkit or (0x04) I2C event.
972 * @phy_port_number: self-explanatory
973 * @reserved31_12: Reserved, not used.
974 */
975 struct dwc3_event_gevt {
976 u32 one_bit:1;
977 u32 device_event:7;
978 u32 phy_port_number:4;
979 u32 reserved31_12:20;
980 } __packed;
981
982 /**
983 * union dwc3_event - representation of Event Buffer contents
984 * @raw: raw 32-bit event
985 * @type: the type of the event
986 * @depevt: Device Endpoint Event
987 * @devt: Device Event
988 * @gevt: Global Event
989 */
990 union dwc3_event {
991 u32 raw;
992 struct dwc3_event_type type;
993 struct dwc3_event_depevt depevt;
994 struct dwc3_event_devt devt;
995 struct dwc3_event_gevt gevt;
996 };
997
998 /**
999 * struct dwc3_gadget_ep_cmd_params - representation of endpoint command
1000 * parameters
1001 * @param2: third parameter
1002 * @param1: second parameter
1003 * @param0: first parameter
1004 */
1005 struct dwc3_gadget_ep_cmd_params {
1006 u32 param2;
1007 u32 param1;
1008 u32 param0;
1009 };
1010
1011 /*
1012 * DWC3 Features to be used as Driver Data
1013 */
1014
1015 #define DWC3_HAS_PERIPHERAL BIT(0)
1016 #define DWC3_HAS_XHCI BIT(1)
1017 #define DWC3_HAS_OTG BIT(3)
1018
1019 /* prototypes */
1020 int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc);
1021 void dwc3_of_parse(struct dwc3 *dwc);
1022 int dwc3_init(struct dwc3 *dwc);
1023 void dwc3_remove(struct dwc3 *dwc);
1024
dwc3_host_init(struct dwc3 * dwc)1025 static inline int dwc3_host_init(struct dwc3 *dwc)
1026 { return 0; }
dwc3_host_exit(struct dwc3 * dwc)1027 static inline void dwc3_host_exit(struct dwc3 *dwc)
1028 { }
1029
1030 #ifdef CONFIG_USB_DWC3_GADGET
1031 int dwc3_gadget_init(struct dwc3 *dwc);
1032 void dwc3_gadget_exit(struct dwc3 *dwc);
1033 int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode);
1034 int dwc3_gadget_get_link_state(struct dwc3 *dwc);
1035 int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
1036 int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
1037 unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
1038 int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param);
1039 #else
dwc3_gadget_init(struct dwc3 * dwc)1040 static inline int dwc3_gadget_init(struct dwc3 *dwc)
1041 { return 0; }
dwc3_gadget_exit(struct dwc3 * dwc)1042 static inline void dwc3_gadget_exit(struct dwc3 *dwc)
1043 { }
dwc3_gadget_set_test_mode(struct dwc3 * dwc,int mode)1044 static inline int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode)
1045 { return 0; }
dwc3_gadget_get_link_state(struct dwc3 * dwc)1046 static inline int dwc3_gadget_get_link_state(struct dwc3 *dwc)
1047 { return 0; }
dwc3_gadget_set_link_state(struct dwc3 * dwc,enum dwc3_link_state state)1048 static inline int dwc3_gadget_set_link_state(struct dwc3 *dwc,
1049 enum dwc3_link_state state)
1050 { return 0; }
1051
dwc3_send_gadget_ep_cmd(struct dwc3 * dwc,unsigned ep,unsigned cmd,struct dwc3_gadget_ep_cmd_params * params)1052 static inline int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
1053 unsigned cmd, struct dwc3_gadget_ep_cmd_params *params)
1054 { return 0; }
dwc3_send_gadget_generic_command(struct dwc3 * dwc,int cmd,u32 param)1055 static inline int dwc3_send_gadget_generic_command(struct dwc3 *dwc,
1056 int cmd, u32 param)
1057 { return 0; }
1058 #endif
1059
1060 #endif /* __DRIVERS_USB_DWC3_CORE_H */
1061