2 * core.h - DesignWare USB3 DRD Core Header
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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.
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.
19 #ifndef __DRIVERS_USB_DWC3_CORE_H
20 #define __DRIVERS_USB_DWC3_CORE_H
22 #include <linux/device.h>
23 #include <linux/spinlock.h>
24 #include <linux/ioport.h>
25 #include <linux/list.h>
26 #include <linux/dma-mapping.h>
28 #include <linux/debugfs.h>
30 #include <linux/usb/ch9.h>
31 #include <linux/usb/gadget.h>
32 #include <linux/usb/otg.h>
34 #include <linux/phy/phy.h>
36 #define DWC3_MSG_MAX 500
38 /* Global constants */
39 #define DWC3_EP0_BOUNCE_SIZE 512
40 #define DWC3_ENDPOINTS_NUM 32
41 #define DWC3_XHCI_RESOURCES_NUM 2
43 #define DWC3_SCRATCHBUF_SIZE 4096 /* each buffer is assumed to be 4KiB */
44 #define DWC3_EVENT_SIZE 4 /* bytes */
45 #define DWC3_EVENT_MAX_NUM 64 /* 2 events/endpoint */
46 #define DWC3_EVENT_BUFFERS_SIZE (DWC3_EVENT_SIZE * DWC3_EVENT_MAX_NUM)
47 #define DWC3_EVENT_TYPE_MASK 0xfe
49 #define DWC3_EVENT_TYPE_DEV 0
50 #define DWC3_EVENT_TYPE_CARKIT 3
51 #define DWC3_EVENT_TYPE_I2C 4
53 #define DWC3_DEVICE_EVENT_DISCONNECT 0
54 #define DWC3_DEVICE_EVENT_RESET 1
55 #define DWC3_DEVICE_EVENT_CONNECT_DONE 2
56 #define DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE 3
57 #define DWC3_DEVICE_EVENT_WAKEUP 4
58 #define DWC3_DEVICE_EVENT_HIBER_REQ 5
59 #define DWC3_DEVICE_EVENT_EOPF 6
60 #define DWC3_DEVICE_EVENT_SOF 7
61 #define DWC3_DEVICE_EVENT_ERRATIC_ERROR 9
62 #define DWC3_DEVICE_EVENT_CMD_CMPL 10
63 #define DWC3_DEVICE_EVENT_OVERFLOW 11
65 #define DWC3_GEVNTCOUNT_MASK 0xfffc
66 #define DWC3_GSNPSID_MASK 0xffff0000
67 #define DWC3_GSNPSREV_MASK 0xffff
69 /* DWC3 registers memory space boundries */
70 #define DWC3_XHCI_REGS_START 0x0
71 #define DWC3_XHCI_REGS_END 0x7fff
72 #define DWC3_GLOBALS_REGS_START 0xc100
73 #define DWC3_GLOBALS_REGS_END 0xc6ff
74 #define DWC3_DEVICE_REGS_START 0xc700
75 #define DWC3_DEVICE_REGS_END 0xcbff
76 #define DWC3_OTG_REGS_START 0xcc00
77 #define DWC3_OTG_REGS_END 0xccff
79 /* Global Registers */
80 #define DWC3_GSBUSCFG0 0xc100
81 #define DWC3_GSBUSCFG1 0xc104
82 #define DWC3_GTXTHRCFG 0xc108
83 #define DWC3_GRXTHRCFG 0xc10c
84 #define DWC3_GCTL 0xc110
85 #define DWC3_GEVTEN 0xc114
86 #define DWC3_GSTS 0xc118
87 #define DWC3_GSNPSID 0xc120
88 #define DWC3_GGPIO 0xc124
89 #define DWC3_GUID 0xc128
90 #define DWC3_GUCTL 0xc12c
91 #define DWC3_GBUSERRADDR0 0xc130
92 #define DWC3_GBUSERRADDR1 0xc134
93 #define DWC3_GPRTBIMAP0 0xc138
94 #define DWC3_GPRTBIMAP1 0xc13c
95 #define DWC3_GHWPARAMS0 0xc140
96 #define DWC3_GHWPARAMS1 0xc144
97 #define DWC3_GHWPARAMS2 0xc148
98 #define DWC3_GHWPARAMS3 0xc14c
99 #define DWC3_GHWPARAMS4 0xc150
100 #define DWC3_GHWPARAMS5 0xc154
101 #define DWC3_GHWPARAMS6 0xc158
102 #define DWC3_GHWPARAMS7 0xc15c
103 #define DWC3_GDBGFIFOSPACE 0xc160
104 #define DWC3_GDBGLTSSM 0xc164
105 #define DWC3_GPRTBIMAP_HS0 0xc180
106 #define DWC3_GPRTBIMAP_HS1 0xc184
107 #define DWC3_GPRTBIMAP_FS0 0xc188
108 #define DWC3_GPRTBIMAP_FS1 0xc18c
110 #define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
111 #define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
113 #define DWC3_GUSB2PHYACC(n) (0xc280 + (n * 0x04))
115 #define DWC3_GUSB3PIPECTL(n) (0xc2c0 + (n * 0x04))
117 #define DWC3_GTXFIFOSIZ(n) (0xc300 + (n * 0x04))
118 #define DWC3_GRXFIFOSIZ(n) (0xc380 + (n * 0x04))
120 #define DWC3_GEVNTADRLO(n) (0xc400 + (n * 0x10))
121 #define DWC3_GEVNTADRHI(n) (0xc404 + (n * 0x10))
122 #define DWC3_GEVNTSIZ(n) (0xc408 + (n * 0x10))
123 #define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
125 #define DWC3_GHWPARAMS8 0xc600
127 /* Device Registers */
128 #define DWC3_DCFG 0xc700
129 #define DWC3_DCTL 0xc704
130 #define DWC3_DEVTEN 0xc708
131 #define DWC3_DSTS 0xc70c
132 #define DWC3_DGCMDPAR 0xc710
133 #define DWC3_DGCMD 0xc714
134 #define DWC3_DALEPENA 0xc720
135 #define DWC3_DEPCMDPAR2(n) (0xc800 + (n * 0x10))
136 #define DWC3_DEPCMDPAR1(n) (0xc804 + (n * 0x10))
137 #define DWC3_DEPCMDPAR0(n) (0xc808 + (n * 0x10))
138 #define DWC3_DEPCMD(n) (0xc80c + (n * 0x10))
141 #define DWC3_OCFG 0xcc00
142 #define DWC3_OCTL 0xcc04
143 #define DWC3_OEVT 0xcc08
144 #define DWC3_OEVTEN 0xcc0C
145 #define DWC3_OSTS 0xcc10
149 /* Global Configuration Register */
150 #define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19)
151 #define DWC3_GCTL_U2RSTECN (1 << 16)
152 #define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6)
153 #define DWC3_GCTL_CLK_BUS (0)
154 #define DWC3_GCTL_CLK_PIPE (1)
155 #define DWC3_GCTL_CLK_PIPEHALF (2)
156 #define DWC3_GCTL_CLK_MASK (3)
158 #define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12)) >> 12)
159 #define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12)
160 #define DWC3_GCTL_PRTCAP_HOST 1
161 #define DWC3_GCTL_PRTCAP_DEVICE 2
162 #define DWC3_GCTL_PRTCAP_OTG 3
164 #define DWC3_GCTL_CORESOFTRESET (1 << 11)
165 #define DWC3_GCTL_SOFITPSYNC (1 << 10)
166 #define DWC3_GCTL_SCALEDOWN(n) ((n) << 4)
167 #define DWC3_GCTL_SCALEDOWN_MASK DWC3_GCTL_SCALEDOWN(3)
168 #define DWC3_GCTL_DISSCRAMBLE (1 << 3)
169 #define DWC3_GCTL_U2EXIT_LFPS (1 << 2)
170 #define DWC3_GCTL_GBLHIBERNATIONEN (1 << 1)
171 #define DWC3_GCTL_DSBLCLKGTNG (1 << 0)
173 /* Global USB2 PHY Configuration Register */
174 #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
175 #define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
177 /* Global USB3 PIPE Control Register */
178 #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
179 #define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29)
180 #define DWC3_GUSB3PIPECTL_REQP1P2P3 (1 << 24)
181 #define DWC3_GUSB3PIPECTL_DEP1P2P3(n) ((n) << 19)
182 #define DWC3_GUSB3PIPECTL_DEP1P2P3_MASK DWC3_GUSB3PIPECTL_DEP1P2P3(7)
183 #define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1)
184 #define DWC3_GUSB3PIPECTL_DEPOCHANGE (1 << 18)
185 #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
186 #define DWC3_GUSB3PIPECTL_LFPSFILT (1 << 9)
187 #define DWC3_GUSB3PIPECTL_RX_DETOPOLL (1 << 8)
188 #define DWC3_GUSB3PIPECTL_TX_DEEPH_MASK DWC3_GUSB3PIPECTL_TX_DEEPH(3)
189 #define DWC3_GUSB3PIPECTL_TX_DEEPH(n) ((n) << 1)
191 /* Global TX Fifo Size Register */
192 #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff)
193 #define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0xffff0000)
195 /* Global Event Size Registers */
196 #define DWC3_GEVNTSIZ_INTMASK (1 << 31)
197 #define DWC3_GEVNTSIZ_SIZE(n) ((n) & 0xffff)
199 /* Global HWPARAMS1 Register */
200 #define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24)) >> 24)
201 #define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
202 #define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
203 #define DWC3_GHWPARAMS1_EN_PWROPT_HIB 2
204 #define DWC3_GHWPARAMS1_PWROPT(n) ((n) << 24)
205 #define DWC3_GHWPARAMS1_PWROPT_MASK DWC3_GHWPARAMS1_PWROPT(3)
207 /* Global HWPARAMS3 Register */
208 #define DWC3_GHWPARAMS3_SSPHY_IFC(n) ((n) & 3)
209 #define DWC3_GHWPARAMS3_SSPHY_IFC_DIS 0
210 #define DWC3_GHWPARAMS3_SSPHY_IFC_ENA 1
211 #define DWC3_GHWPARAMS3_HSPHY_IFC(n) (((n) & (3 << 2)) >> 2)
212 #define DWC3_GHWPARAMS3_HSPHY_IFC_DIS 0
213 #define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI 1
214 #define DWC3_GHWPARAMS3_HSPHY_IFC_ULPI 2
215 #define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI 3
216 #define DWC3_GHWPARAMS3_FSPHY_IFC(n) (((n) & (3 << 4)) >> 4)
217 #define DWC3_GHWPARAMS3_FSPHY_IFC_DIS 0
218 #define DWC3_GHWPARAMS3_FSPHY_IFC_ENA 1
220 /* Global HWPARAMS4 Register */
221 #define DWC3_GHWPARAMS4_HIBER_SCRATCHBUFS(n) (((n) & (0x0f << 13)) >> 13)
222 #define DWC3_MAX_HIBER_SCRATCHBUFS 15
224 /* Global HWPARAMS6 Register */
225 #define DWC3_GHWPARAMS6_EN_FPGA (1 << 7)
227 /* Device Configuration Register */
228 #define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
229 #define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
231 #define DWC3_DCFG_SPEED_MASK (7 << 0)
232 #define DWC3_DCFG_SUPERSPEED (4 << 0)
233 #define DWC3_DCFG_HIGHSPEED (0 << 0)
234 #define DWC3_DCFG_FULLSPEED2 (1 << 0)
235 #define DWC3_DCFG_LOWSPEED (2 << 0)
236 #define DWC3_DCFG_FULLSPEED1 (3 << 0)
238 #define DWC3_DCFG_LPM_CAP (1 << 22)
240 /* Device Control Register */
241 #define DWC3_DCTL_RUN_STOP (1 << 31)
242 #define DWC3_DCTL_CSFTRST (1 << 30)
243 #define DWC3_DCTL_LSFTRST (1 << 29)
245 #define DWC3_DCTL_HIRD_THRES_MASK (0x1f << 24)
246 #define DWC3_DCTL_HIRD_THRES(n) ((n) << 24)
248 #define DWC3_DCTL_APPL1RES (1 << 23)
250 /* These apply for core versions 1.87a and earlier */
251 #define DWC3_DCTL_TRGTULST_MASK (0x0f << 17)
252 #define DWC3_DCTL_TRGTULST(n) ((n) << 17)
253 #define DWC3_DCTL_TRGTULST_U2 (DWC3_DCTL_TRGTULST(2))
254 #define DWC3_DCTL_TRGTULST_U3 (DWC3_DCTL_TRGTULST(3))
255 #define DWC3_DCTL_TRGTULST_SS_DIS (DWC3_DCTL_TRGTULST(4))
256 #define DWC3_DCTL_TRGTULST_RX_DET (DWC3_DCTL_TRGTULST(5))
257 #define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6))
259 /* These apply for core versions 1.94a and later */
260 #define DWC3_DCTL_LPM_ERRATA_MASK DWC3_DCTL_LPM_ERRATA(0xf)
261 #define DWC3_DCTL_LPM_ERRATA(n) ((n) << 20)
263 #define DWC3_DCTL_KEEP_CONNECT (1 << 19)
264 #define DWC3_DCTL_L1_HIBER_EN (1 << 18)
265 #define DWC3_DCTL_CRS (1 << 17)
266 #define DWC3_DCTL_CSS (1 << 16)
268 #define DWC3_DCTL_INITU2ENA (1 << 12)
269 #define DWC3_DCTL_ACCEPTU2ENA (1 << 11)
270 #define DWC3_DCTL_INITU1ENA (1 << 10)
271 #define DWC3_DCTL_ACCEPTU1ENA (1 << 9)
272 #define DWC3_DCTL_TSTCTRL_MASK (0xf << 1)
274 #define DWC3_DCTL_ULSTCHNGREQ_MASK (0x0f << 5)
275 #define DWC3_DCTL_ULSTCHNGREQ(n) (((n) << 5) & DWC3_DCTL_ULSTCHNGREQ_MASK)
277 #define DWC3_DCTL_ULSTCHNG_NO_ACTION (DWC3_DCTL_ULSTCHNGREQ(0))
278 #define DWC3_DCTL_ULSTCHNG_SS_DISABLED (DWC3_DCTL_ULSTCHNGREQ(4))
279 #define DWC3_DCTL_ULSTCHNG_RX_DETECT (DWC3_DCTL_ULSTCHNGREQ(5))
280 #define DWC3_DCTL_ULSTCHNG_SS_INACTIVE (DWC3_DCTL_ULSTCHNGREQ(6))
281 #define DWC3_DCTL_ULSTCHNG_RECOVERY (DWC3_DCTL_ULSTCHNGREQ(8))
282 #define DWC3_DCTL_ULSTCHNG_COMPLIANCE (DWC3_DCTL_ULSTCHNGREQ(10))
283 #define DWC3_DCTL_ULSTCHNG_LOOPBACK (DWC3_DCTL_ULSTCHNGREQ(11))
285 /* Device Event Enable Register */
286 #define DWC3_DEVTEN_VNDRDEVTSTRCVEDEN (1 << 12)
287 #define DWC3_DEVTEN_EVNTOVERFLOWEN (1 << 11)
288 #define DWC3_DEVTEN_CMDCMPLTEN (1 << 10)
289 #define DWC3_DEVTEN_ERRTICERREN (1 << 9)
290 #define DWC3_DEVTEN_SOFEN (1 << 7)
291 #define DWC3_DEVTEN_EOPFEN (1 << 6)
292 #define DWC3_DEVTEN_HIBERNATIONREQEVTEN (1 << 5)
293 #define DWC3_DEVTEN_WKUPEVTEN (1 << 4)
294 #define DWC3_DEVTEN_ULSTCNGEN (1 << 3)
295 #define DWC3_DEVTEN_CONNECTDONEEN (1 << 2)
296 #define DWC3_DEVTEN_USBRSTEN (1 << 1)
297 #define DWC3_DEVTEN_DISCONNEVTEN (1 << 0)
299 /* Device Status Register */
300 #define DWC3_DSTS_DCNRD (1 << 29)
302 /* This applies for core versions 1.87a and earlier */
303 #define DWC3_DSTS_PWRUPREQ (1 << 24)
305 /* These apply for core versions 1.94a and later */
306 #define DWC3_DSTS_RSS (1 << 25)
307 #define DWC3_DSTS_SSS (1 << 24)
309 #define DWC3_DSTS_COREIDLE (1 << 23)
310 #define DWC3_DSTS_DEVCTRLHLT (1 << 22)
312 #define DWC3_DSTS_USBLNKST_MASK (0x0f << 18)
313 #define DWC3_DSTS_USBLNKST(n) (((n) & DWC3_DSTS_USBLNKST_MASK) >> 18)
315 #define DWC3_DSTS_RXFIFOEMPTY (1 << 17)
317 #define DWC3_DSTS_SOFFN_MASK (0x3fff << 3)
318 #define DWC3_DSTS_SOFFN(n) (((n) & DWC3_DSTS_SOFFN_MASK) >> 3)
320 #define DWC3_DSTS_CONNECTSPD (7 << 0)
322 #define DWC3_DSTS_SUPERSPEED (4 << 0)
323 #define DWC3_DSTS_HIGHSPEED (0 << 0)
324 #define DWC3_DSTS_FULLSPEED2 (1 << 0)
325 #define DWC3_DSTS_LOWSPEED (2 << 0)
326 #define DWC3_DSTS_FULLSPEED1 (3 << 0)
328 /* Device Generic Command Register */
329 #define DWC3_DGCMD_SET_LMP 0x01
330 #define DWC3_DGCMD_SET_PERIODIC_PAR 0x02
331 #define DWC3_DGCMD_XMIT_FUNCTION 0x03
333 /* These apply for core versions 1.94a and later */
334 #define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO 0x04
335 #define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI 0x05
337 #define DWC3_DGCMD_SELECTED_FIFO_FLUSH 0x09
338 #define DWC3_DGCMD_ALL_FIFO_FLUSH 0x0a
339 #define DWC3_DGCMD_SET_ENDPOINT_NRDY 0x0c
340 #define DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK 0x10
342 #define DWC3_DGCMD_STATUS(n) (((n) >> 15) & 1)
343 #define DWC3_DGCMD_CMDACT (1 << 10)
344 #define DWC3_DGCMD_CMDIOC (1 << 8)
346 /* Device Generic Command Parameter Register */
347 #define DWC3_DGCMDPAR_FORCE_LINKPM_ACCEPT (1 << 0)
348 #define DWC3_DGCMDPAR_FIFO_NUM(n) ((n) << 0)
349 #define DWC3_DGCMDPAR_RX_FIFO (0 << 5)
350 #define DWC3_DGCMDPAR_TX_FIFO (1 << 5)
351 #define DWC3_DGCMDPAR_LOOPBACK_DIS (0 << 0)
352 #define DWC3_DGCMDPAR_LOOPBACK_ENA (1 << 0)
354 /* Device Endpoint Command Register */
355 #define DWC3_DEPCMD_PARAM_SHIFT 16
356 #define DWC3_DEPCMD_PARAM(x) ((x) << DWC3_DEPCMD_PARAM_SHIFT)
357 #define DWC3_DEPCMD_GET_RSC_IDX(x) (((x) >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
358 #define DWC3_DEPCMD_STATUS(x) (((x) >> 15) & 1)
359 #define DWC3_DEPCMD_HIPRI_FORCERM (1 << 11)
360 #define DWC3_DEPCMD_CMDACT (1 << 10)
361 #define DWC3_DEPCMD_CMDIOC (1 << 8)
363 #define DWC3_DEPCMD_DEPSTARTCFG (0x09 << 0)
364 #define DWC3_DEPCMD_ENDTRANSFER (0x08 << 0)
365 #define DWC3_DEPCMD_UPDATETRANSFER (0x07 << 0)
366 #define DWC3_DEPCMD_STARTTRANSFER (0x06 << 0)
367 #define DWC3_DEPCMD_CLEARSTALL (0x05 << 0)
368 #define DWC3_DEPCMD_SETSTALL (0x04 << 0)
369 /* This applies for core versions 1.90a and earlier */
370 #define DWC3_DEPCMD_GETSEQNUMBER (0x03 << 0)
371 /* This applies for core versions 1.94a and later */
372 #define DWC3_DEPCMD_GETEPSTATE (0x03 << 0)
373 #define DWC3_DEPCMD_SETTRANSFRESOURCE (0x02 << 0)
374 #define DWC3_DEPCMD_SETEPCONFIG (0x01 << 0)
376 /* The EP number goes 0..31 so ep0 is always out and ep1 is always in */
377 #define DWC3_DALEPENA_EP(n) (1 << n)
379 #define DWC3_DEPCMD_TYPE_CONTROL 0
380 #define DWC3_DEPCMD_TYPE_ISOC 1
381 #define DWC3_DEPCMD_TYPE_BULK 2
382 #define DWC3_DEPCMD_TYPE_INTR 3
389 * struct dwc3_event_buffer - Software event buffer representation
391 * @length: size of this buffer
392 * @lpos: event offset
393 * @count: cache of last read event count register
394 * @flags: flags related to this event buffer
396 * @dwc: pointer to DWC controller
398 struct dwc3_event_buffer {
405 #define DWC3_EVENT_PENDING BIT(0)
412 #define DWC3_EP_FLAG_STALLED (1 << 0)
413 #define DWC3_EP_FLAG_WEDGED (1 << 1)
415 #define DWC3_EP_DIRECTION_TX true
416 #define DWC3_EP_DIRECTION_RX false
418 #define DWC3_TRB_NUM 32
419 #define DWC3_TRB_MASK (DWC3_TRB_NUM - 1)
422 * struct dwc3_ep - device side endpoint representation
423 * @endpoint: usb endpoint
424 * @request_list: list of requests for this endpoint
425 * @req_queued: list of requests on this ep which have TRBs setup
426 * @trb_pool: array of transaction buffers
427 * @trb_pool_dma: dma address of @trb_pool
428 * @free_slot: next slot which is going to be used
429 * @busy_slot: first slot which is owned by HW
430 * @desc: usb_endpoint_descriptor pointer
431 * @dwc: pointer to DWC controller
432 * @saved_state: ep state saved during hibernation
433 * @flags: endpoint flags (wedged, stalled, ...)
434 * @current_trb: index of current used trb
435 * @number: endpoint number (1 - 15)
436 * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
437 * @resource_index: Resource transfer index
438 * @interval: the interval on which the ISOC transfer is started
439 * @name: a human readable name e.g. ep1out-bulk
440 * @direction: true for TX, false for RX
441 * @stream_capable: true when streams are enabled
444 struct usb_ep endpoint;
445 struct list_head request_list;
446 struct list_head req_queued;
448 struct dwc3_trb *trb_pool;
449 dma_addr_t trb_pool_dma;
452 const struct usb_ss_ep_comp_descriptor *comp_desc;
457 #define DWC3_EP_ENABLED (1 << 0)
458 #define DWC3_EP_STALL (1 << 1)
459 #define DWC3_EP_WEDGE (1 << 2)
460 #define DWC3_EP_BUSY (1 << 4)
461 #define DWC3_EP_PENDING_REQUEST (1 << 5)
462 #define DWC3_EP_MISSED_ISOC (1 << 6)
464 /* This last one is specific to EP0 */
465 #define DWC3_EP0_DIR_IN (1 << 31)
467 unsigned current_trb;
476 unsigned direction:1;
477 unsigned stream_capable:1;
481 DWC3_PHY_UNKNOWN = 0,
487 DWC3_EP0_UNKNOWN = 0,
490 DWC3_EP0_NRDY_STATUS,
493 enum dwc3_ep0_state {
500 enum dwc3_link_state {
502 DWC3_LINK_STATE_U0 = 0x00, /* in HS, means ON */
503 DWC3_LINK_STATE_U1 = 0x01,
504 DWC3_LINK_STATE_U2 = 0x02, /* in HS, means SLEEP */
505 DWC3_LINK_STATE_U3 = 0x03, /* in HS, means SUSPEND */
506 DWC3_LINK_STATE_SS_DIS = 0x04,
507 DWC3_LINK_STATE_RX_DET = 0x05, /* in HS, means Early Suspend */
508 DWC3_LINK_STATE_SS_INACT = 0x06,
509 DWC3_LINK_STATE_POLL = 0x07,
510 DWC3_LINK_STATE_RECOV = 0x08,
511 DWC3_LINK_STATE_HRESET = 0x09,
512 DWC3_LINK_STATE_CMPLY = 0x0a,
513 DWC3_LINK_STATE_LPBK = 0x0b,
514 DWC3_LINK_STATE_RESET = 0x0e,
515 DWC3_LINK_STATE_RESUME = 0x0f,
516 DWC3_LINK_STATE_MASK = 0x0f,
519 /* TRB Length, PCM and Status */
520 #define DWC3_TRB_SIZE_MASK (0x00ffffff)
521 #define DWC3_TRB_SIZE_LENGTH(n) ((n) & DWC3_TRB_SIZE_MASK)
522 #define DWC3_TRB_SIZE_PCM1(n) (((n) & 0x03) << 24)
523 #define DWC3_TRB_SIZE_TRBSTS(n) (((n) & (0x0f << 28)) >> 28)
525 #define DWC3_TRBSTS_OK 0
526 #define DWC3_TRBSTS_MISSED_ISOC 1
527 #define DWC3_TRBSTS_SETUP_PENDING 2
528 #define DWC3_TRB_STS_XFER_IN_PROG 4
531 #define DWC3_TRB_CTRL_HWO (1 << 0)
532 #define DWC3_TRB_CTRL_LST (1 << 1)
533 #define DWC3_TRB_CTRL_CHN (1 << 2)
534 #define DWC3_TRB_CTRL_CSP (1 << 3)
535 #define DWC3_TRB_CTRL_TRBCTL(n) (((n) & 0x3f) << 4)
536 #define DWC3_TRB_CTRL_ISP_IMI (1 << 10)
537 #define DWC3_TRB_CTRL_IOC (1 << 11)
538 #define DWC3_TRB_CTRL_SID_SOFN(n) (((n) & 0xffff) << 14)
540 #define DWC3_TRBCTL_NORMAL DWC3_TRB_CTRL_TRBCTL(1)
541 #define DWC3_TRBCTL_CONTROL_SETUP DWC3_TRB_CTRL_TRBCTL(2)
542 #define DWC3_TRBCTL_CONTROL_STATUS2 DWC3_TRB_CTRL_TRBCTL(3)
543 #define DWC3_TRBCTL_CONTROL_STATUS3 DWC3_TRB_CTRL_TRBCTL(4)
544 #define DWC3_TRBCTL_CONTROL_DATA DWC3_TRB_CTRL_TRBCTL(5)
545 #define DWC3_TRBCTL_ISOCHRONOUS_FIRST DWC3_TRB_CTRL_TRBCTL(6)
546 #define DWC3_TRBCTL_ISOCHRONOUS DWC3_TRB_CTRL_TRBCTL(7)
547 #define DWC3_TRBCTL_LINK_TRB DWC3_TRB_CTRL_TRBCTL(8)
550 * struct dwc3_trb - transfer request block (hw format)
564 * dwc3_hwparams - copy of HWPARAMS registers
565 * @hwparams0 - GHWPARAMS0
566 * @hwparams1 - GHWPARAMS1
567 * @hwparams2 - GHWPARAMS2
568 * @hwparams3 - GHWPARAMS3
569 * @hwparams4 - GHWPARAMS4
570 * @hwparams5 - GHWPARAMS5
571 * @hwparams6 - GHWPARAMS6
572 * @hwparams7 - GHWPARAMS7
573 * @hwparams8 - GHWPARAMS8
575 struct dwc3_hwparams {
588 #define DWC3_MODE(n) ((n) & 0x7)
590 #define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8)
593 #define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15)
596 #define DWC3_NUM_IN_EPS_MASK (0x1f << 18)
597 #define DWC3_NUM_EPS_MASK (0x3f << 12)
598 #define DWC3_NUM_EPS(p) (((p)->hwparams3 & \
599 (DWC3_NUM_EPS_MASK)) >> 12)
600 #define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \
601 (DWC3_NUM_IN_EPS_MASK)) >> 18)
604 #define DWC3_RAM1_DEPTH(n) ((n) & 0xffff)
606 struct dwc3_request {
607 struct usb_request request;
608 struct list_head list;
613 struct dwc3_trb *trb;
616 unsigned direction:1;
622 * struct dwc3_scratchpad_array - hibernation scratchpad array
623 * (format defined by hw)
625 struct dwc3_scratchpad_array {
626 __le64 dma_adr[DWC3_MAX_HIBER_SCRATCHBUFS];
630 * struct dwc3 - representation of our controller
631 * @ctrl_req: usb control request which is used for ep0
632 * @ep0_trb: trb which is used for the ctrl_req
633 * @ep0_bounce: bounce buffer for ep0
634 * @setup_buf: used while precessing STD USB requests
635 * @ctrl_req_addr: dma address of ctrl_req
636 * @ep0_trb: dma address of ep0_trb
637 * @ep0_usb_req: dummy req used while handling STD USB requests
638 * @ep0_bounce_addr: dma address of ep0_bounce
639 * @scratch_addr: dma address of scratchbuf
640 * @lock: for synchronizing
641 * @dev: pointer to our struct device
642 * @xhci: pointer to our xHCI child
643 * @event_buffer_list: a list of event buffers
644 * @gadget: device side representation of the peripheral controller
645 * @gadget_driver: pointer to the gadget driver
646 * @regs: base address for our registers
647 * @regs_size: address space size
648 * @nr_scratch: number of scratch buffers
649 * @num_event_buffers: calculated number of event buffers
650 * @u1u2: only used on revisions <1.83a for workaround
651 * @maximum_speed: maximum speed requested (mainly for testing purposes)
652 * @revision: revision register contents
653 * @dr_mode: requested mode of operation
654 * @usb2_phy: pointer to USB2 PHY
655 * @usb3_phy: pointer to USB3 PHY
656 * @usb2_generic_phy: pointer to USB2 PHY
657 * @usb3_generic_phy: pointer to USB3 PHY
658 * @dcfg: saved contents of DCFG register
659 * @gctl: saved contents of GCTL register
660 * @isoch_delay: wValue from Set Isochronous Delay request;
661 * @u2sel: parameter from Set SEL request.
662 * @u2pel: parameter from Set SEL request.
663 * @u1sel: parameter from Set SEL request.
664 * @u1pel: parameter from Set SEL request.
665 * @num_out_eps: number of out endpoints
666 * @num_in_eps: number of in endpoints
667 * @ep0_next_event: hold the next expected event
668 * @ep0state: state of endpoint zero
669 * @link_state: link state
670 * @speed: device speed (super, high, full, low)
671 * @mem: points to start of memory which is used for this struct.
672 * @hwparams: copy of hwparams registers
673 * @root: debugfs root folder pointer
674 * @regset: debugfs pointer to regdump file
675 * @test_mode: true when we're entering a USB test mode
676 * @test_mode_nr: test feature selector
677 * @lpm_nyet_threshold: LPM NYET response threshold
678 * @hird_threshold: HIRD threshold
679 * @delayed_status: true when gadget driver asks for delayed status
680 * @ep0_bounced: true when we used bounce buffer
681 * @ep0_expect_in: true when we expect a DATA IN transfer
682 * @has_hibernation: true when dwc3 was configured with Hibernation
683 * @has_lpm_erratum: true when core was configured with LPM Erratum. Note that
684 * there's now way for software to detect this in runtime.
685 * @is_utmi_l1_suspend: the core asserts output signal
687 * 1 - utmi_l1_suspend_n
688 * @is_selfpowered: true when we are selfpowered
689 * @is_fpga: true when we are using the FPGA board
690 * @needs_fifo_resize: not all users might want fifo resizing, flag it
691 * @pullups_connected: true when Run/Stop bit is set
692 * @resize_fifos: tells us it's ok to reconfigure our TxFIFO sizes.
693 * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
694 * @start_config_issued: true when StartConfig command has been issued
695 * @three_stage_setup: set if we perform a three phase setup
696 * @disable_scramble_quirk: set if we enable the disable scramble quirk
697 * @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
698 * @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
699 * @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk
700 * @del_p1p2p3_quirk: set if we enable delay p1p2p3 quirk
701 * @del_phy_power_chg_quirk: set if we enable delay phy power change quirk
702 * @lfps_filter_quirk: set if we enable LFPS filter quirk
703 * @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
704 * @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
705 * @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
706 * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk
707 * @tx_de_emphasis: Tx de-emphasis value
708 * 0 - -6dB de-emphasis
709 * 1 - -3.5dB de-emphasis
714 struct usb_ctrlrequest *ctrl_req;
715 struct dwc3_trb *ep0_trb;
719 dma_addr_t ctrl_req_addr;
720 dma_addr_t ep0_trb_addr;
721 dma_addr_t ep0_bounce_addr;
722 dma_addr_t scratch_addr;
723 struct dwc3_request ep0_usb_req;
730 struct platform_device *xhci;
731 struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM];
733 struct dwc3_event_buffer **ev_buffs;
734 struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM];
736 struct usb_gadget gadget;
737 struct usb_gadget_driver *gadget_driver;
739 struct usb_phy *usb2_phy;
740 struct usb_phy *usb3_phy;
742 struct phy *usb2_generic_phy;
743 struct phy *usb3_generic_phy;
748 enum usb_dr_mode dr_mode;
750 /* used for suspend/resume */
755 u32 num_event_buffers;
760 #define DWC3_REVISION_173A 0x5533173a
761 #define DWC3_REVISION_175A 0x5533175a
762 #define DWC3_REVISION_180A 0x5533180a
763 #define DWC3_REVISION_183A 0x5533183a
764 #define DWC3_REVISION_185A 0x5533185a
765 #define DWC3_REVISION_187A 0x5533187a
766 #define DWC3_REVISION_188A 0x5533188a
767 #define DWC3_REVISION_190A 0x5533190a
768 #define DWC3_REVISION_194A 0x5533194a
769 #define DWC3_REVISION_200A 0x5533200a
770 #define DWC3_REVISION_202A 0x5533202a
771 #define DWC3_REVISION_210A 0x5533210a
772 #define DWC3_REVISION_220A 0x5533220a
773 #define DWC3_REVISION_230A 0x5533230a
774 #define DWC3_REVISION_240A 0x5533240a
775 #define DWC3_REVISION_250A 0x5533250a
776 #define DWC3_REVISION_260A 0x5533260a
777 #define DWC3_REVISION_270A 0x5533270a
778 #define DWC3_REVISION_280A 0x5533280a
780 enum dwc3_ep0_next ep0_next_event;
781 enum dwc3_ep0_state ep0state;
782 enum dwc3_link_state link_state;
797 struct dwc3_hwparams hwparams;
799 struct debugfs_regset32 *regset;
803 u8 lpm_nyet_threshold;
806 unsigned delayed_status:1;
807 unsigned ep0_bounced:1;
808 unsigned ep0_expect_in:1;
809 unsigned has_hibernation:1;
810 unsigned has_lpm_erratum:1;
811 unsigned is_utmi_l1_suspend:1;
812 unsigned is_selfpowered:1;
814 unsigned needs_fifo_resize:1;
815 unsigned pullups_connected:1;
816 unsigned resize_fifos:1;
817 unsigned setup_packet_pending:1;
818 unsigned start_config_issued:1;
819 unsigned three_stage_setup:1;
821 unsigned disable_scramble_quirk:1;
822 unsigned u2exit_lfps_quirk:1;
823 unsigned u2ss_inp3_quirk:1;
824 unsigned req_p1p2p3_quirk:1;
825 unsigned del_p1p2p3_quirk:1;
826 unsigned del_phy_power_chg_quirk:1;
827 unsigned lfps_filter_quirk:1;
828 unsigned rx_detect_poll_quirk:1;
829 unsigned dis_u3_susphy_quirk:1;
830 unsigned dis_u2_susphy_quirk:1;
832 unsigned tx_de_emphasis_quirk:1;
833 unsigned tx_de_emphasis:2;
836 /* -------------------------------------------------------------------------- */
838 /* -------------------------------------------------------------------------- */
840 struct dwc3_event_type {
846 #define DWC3_DEPEVT_XFERCOMPLETE 0x01
847 #define DWC3_DEPEVT_XFERINPROGRESS 0x02
848 #define DWC3_DEPEVT_XFERNOTREADY 0x03
849 #define DWC3_DEPEVT_RXTXFIFOEVT 0x04
850 #define DWC3_DEPEVT_STREAMEVT 0x06
851 #define DWC3_DEPEVT_EPCMDCMPLT 0x07
854 * struct dwc3_event_depvt - Device Endpoint Events
855 * @one_bit: indicates this is an endpoint event (not used)
856 * @endpoint_number: number of the endpoint
857 * @endpoint_event: The event we have:
859 * 0x01 - XferComplete
860 * 0x02 - XferInProgress
861 * 0x03 - XferNotReady
862 * 0x04 - RxTxFifoEvt (IN->Underrun, OUT->Overrun)
866 * @reserved11_10: Reserved, don't use.
867 * @status: Indicates the status of the event. Refer to databook for
869 * @parameters: Parameters of the current event. Refer to databook for
872 struct dwc3_event_depevt {
874 u32 endpoint_number:5;
875 u32 endpoint_event:4;
879 /* Within XferNotReady */
880 #define DEPEVT_STATUS_TRANSFER_ACTIVE (1 << 3)
882 /* Within XferComplete */
883 #define DEPEVT_STATUS_BUSERR (1 << 0)
884 #define DEPEVT_STATUS_SHORT (1 << 1)
885 #define DEPEVT_STATUS_IOC (1 << 2)
886 #define DEPEVT_STATUS_LST (1 << 3)
888 /* Stream event only */
889 #define DEPEVT_STREAMEVT_FOUND 1
890 #define DEPEVT_STREAMEVT_NOTFOUND 2
892 /* Control-only Status */
893 #define DEPEVT_STATUS_CONTROL_DATA 1
894 #define DEPEVT_STATUS_CONTROL_STATUS 2
900 * struct dwc3_event_devt - Device Events
901 * @one_bit: indicates this is a non-endpoint event (not used)
902 * @device_event: indicates it's a device event. Should read as 0x00
903 * @type: indicates the type of device event.
916 * 12 - VndrDevTstRcved
917 * @reserved15_12: Reserved, not used
918 * @event_info: Information about this event
919 * @reserved31_25: Reserved, not used
921 struct dwc3_event_devt {
931 * struct dwc3_event_gevt - Other Core Events
932 * @one_bit: indicates this is a non-endpoint event (not used)
933 * @device_event: indicates it's (0x03) Carkit or (0x04) I2C event.
934 * @phy_port_number: self-explanatory
935 * @reserved31_12: Reserved, not used.
937 struct dwc3_event_gevt {
940 u32 phy_port_number:4;
941 u32 reserved31_12:20;
945 * union dwc3_event - representation of Event Buffer contents
946 * @raw: raw 32-bit event
947 * @type: the type of the event
948 * @depevt: Device Endpoint Event
949 * @devt: Device Event
950 * @gevt: Global Event
954 struct dwc3_event_type type;
955 struct dwc3_event_depevt depevt;
956 struct dwc3_event_devt devt;
957 struct dwc3_event_gevt gevt;
961 * struct dwc3_gadget_ep_cmd_params - representation of endpoint command
963 * @param2: third parameter
964 * @param1: second parameter
965 * @param0: first parameter
967 struct dwc3_gadget_ep_cmd_params {
974 * DWC3 Features to be used as Driver Data
977 #define DWC3_HAS_PERIPHERAL BIT(0)
978 #define DWC3_HAS_XHCI BIT(1)
979 #define DWC3_HAS_OTG BIT(3)
982 void dwc3_set_mode(struct dwc3 *dwc, u32 mode);
983 int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc);
985 #if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
986 int dwc3_host_init(struct dwc3 *dwc);
987 void dwc3_host_exit(struct dwc3 *dwc);
989 static inline int dwc3_host_init(struct dwc3 *dwc)
991 static inline void dwc3_host_exit(struct dwc3 *dwc)
995 #if IS_ENABLED(CONFIG_USB_DWC3_GADGET) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
996 int dwc3_gadget_init(struct dwc3 *dwc);
997 void dwc3_gadget_exit(struct dwc3 *dwc);
998 int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode);
999 int dwc3_gadget_get_link_state(struct dwc3 *dwc);
1000 int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
1001 int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
1002 unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
1003 int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param);
1005 static inline int dwc3_gadget_init(struct dwc3 *dwc)
1007 static inline void dwc3_gadget_exit(struct dwc3 *dwc)
1009 static inline int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode)
1011 static inline int dwc3_gadget_get_link_state(struct dwc3 *dwc)
1013 static inline int dwc3_gadget_set_link_state(struct dwc3 *dwc,
1014 enum dwc3_link_state state)
1017 static inline int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
1018 unsigned cmd, struct dwc3_gadget_ep_cmd_params *params)
1020 static inline int dwc3_send_gadget_generic_command(struct dwc3 *dwc,
1025 /* power management interface */
1026 #if !IS_ENABLED(CONFIG_USB_DWC3_HOST)
1027 int dwc3_gadget_suspend(struct dwc3 *dwc);
1028 int dwc3_gadget_resume(struct dwc3 *dwc);
1030 static inline int dwc3_gadget_suspend(struct dwc3 *dwc)
1035 static inline int dwc3_gadget_resume(struct dwc3 *dwc)
1039 #endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */
1041 #endif /* __DRIVERS_USB_DWC3_CORE_H */