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 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The names of the above-listed copyright holders may not be used
19 * to endorse or promote products derived from this software without
20 * specific prior written permission.
22 * ALTERNATIVELY, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2, as published by the Free
24 * Software Foundation.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
28 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
30 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #ifndef __DRIVERS_USB_DWC3_CORE_H
40 #define __DRIVERS_USB_DWC3_CORE_H
42 #include <linux/device.h>
43 #include <linux/spinlock.h>
44 #include <linux/ioport.h>
45 #include <linux/list.h>
46 #include <linux/dma-mapping.h>
48 #include <linux/debugfs.h>
50 #include <linux/usb/ch9.h>
51 #include <linux/usb/gadget.h>
53 /* Global constants */
54 #define DWC3_ENDPOINTS_NUM 32
56 #define DWC3_EVENT_BUFFERS_SIZE PAGE_SIZE
57 #define DWC3_EVENT_TYPE_MASK 0xfe
59 #define DWC3_EVENT_TYPE_DEV 0
60 #define DWC3_EVENT_TYPE_CARKIT 3
61 #define DWC3_EVENT_TYPE_I2C 4
63 #define DWC3_DEVICE_EVENT_DISCONNECT 0
64 #define DWC3_DEVICE_EVENT_RESET 1
65 #define DWC3_DEVICE_EVENT_CONNECT_DONE 2
66 #define DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE 3
67 #define DWC3_DEVICE_EVENT_WAKEUP 4
68 #define DWC3_DEVICE_EVENT_EOPF 6
69 #define DWC3_DEVICE_EVENT_SOF 7
70 #define DWC3_DEVICE_EVENT_ERRATIC_ERROR 9
71 #define DWC3_DEVICE_EVENT_CMD_CMPL 10
72 #define DWC3_DEVICE_EVENT_OVERFLOW 11
74 #define DWC3_GEVNTCOUNT_MASK 0xfffc
75 #define DWC3_GSNPSID_MASK 0xffff0000
76 #define DWC3_GSNPSREV_MASK 0xffff
78 /* Global Registers */
79 #define DWC3_GSBUSCFG0 0xc100
80 #define DWC3_GSBUSCFG1 0xc104
81 #define DWC3_GTXTHRCFG 0xc108
82 #define DWC3_GRXTHRCFG 0xc10c
83 #define DWC3_GCTL 0xc110
84 #define DWC3_GEVTEN 0xc114
85 #define DWC3_GSTS 0xc118
86 #define DWC3_GSNPSID 0xc120
87 #define DWC3_GGPIO 0xc124
88 #define DWC3_GUID 0xc128
89 #define DWC3_GUCTL 0xc12c
90 #define DWC3_GBUSERRADDR0 0xc130
91 #define DWC3_GBUSERRADDR1 0xc134
92 #define DWC3_GPRTBIMAP0 0xc138
93 #define DWC3_GPRTBIMAP1 0xc13c
94 #define DWC3_GHWPARAMS0 0xc140
95 #define DWC3_GHWPARAMS1 0xc144
96 #define DWC3_GHWPARAMS2 0xc148
97 #define DWC3_GHWPARAMS3 0xc14c
98 #define DWC3_GHWPARAMS4 0xc150
99 #define DWC3_GHWPARAMS5 0xc154
100 #define DWC3_GHWPARAMS6 0xc158
101 #define DWC3_GHWPARAMS7 0xc15c
102 #define DWC3_GDBGFIFOSPACE 0xc160
103 #define DWC3_GDBGLTSSM 0xc164
104 #define DWC3_GPRTBIMAP_HS0 0xc180
105 #define DWC3_GPRTBIMAP_HS1 0xc184
106 #define DWC3_GPRTBIMAP_FS0 0xc188
107 #define DWC3_GPRTBIMAP_FS1 0xc18c
109 #define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
110 #define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
112 #define DWC3_GUSB2PHYACC(n) (0xc280 + (n * 0x04))
114 #define DWC3_GUSB3PIPECTL(n) (0xc2c0 + (n * 0x04))
116 #define DWC3_GTXFIFOSIZ(n) (0xc300 + (n * 0x04))
117 #define DWC3_GRXFIFOSIZ(n) (0xc380 + (n * 0x04))
119 #define DWC3_GEVNTADRLO(n) (0xc400 + (n * 0x10))
120 #define DWC3_GEVNTADRHI(n) (0xc404 + (n * 0x10))
121 #define DWC3_GEVNTSIZ(n) (0xc408 + (n * 0x10))
122 #define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
124 #define DWC3_GHWPARAMS8 0xc600
126 /* Device Registers */
127 #define DWC3_DCFG 0xc700
128 #define DWC3_DCTL 0xc704
129 #define DWC3_DEVTEN 0xc708
130 #define DWC3_DSTS 0xc70c
131 #define DWC3_DGCMDPAR 0xc710
132 #define DWC3_DGCMD 0xc714
133 #define DWC3_DALEPENA 0xc720
134 #define DWC3_DEPCMDPAR2(n) (0xc800 + (n * 0x10))
135 #define DWC3_DEPCMDPAR1(n) (0xc804 + (n * 0x10))
136 #define DWC3_DEPCMDPAR0(n) (0xc808 + (n * 0x10))
137 #define DWC3_DEPCMD(n) (0xc80c + (n * 0x10))
140 #define DWC3_OCFG 0xcc00
141 #define DWC3_OCTL 0xcc04
142 #define DWC3_OEVTEN 0xcc08
143 #define DWC3_OSTS 0xcc0C
147 /* Global Configuration Register */
148 #define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19)
149 #define DWC3_GCTL_U2RSTECN (1 << 16)
150 #define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6)
151 #define DWC3_GCTL_CLK_BUS (0)
152 #define DWC3_GCTL_CLK_PIPE (1)
153 #define DWC3_GCTL_CLK_PIPEHALF (2)
154 #define DWC3_GCTL_CLK_MASK (3)
156 #define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12)) >> 12)
157 #define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12)
158 #define DWC3_GCTL_PRTCAP_HOST 1
159 #define DWC3_GCTL_PRTCAP_DEVICE 2
160 #define DWC3_GCTL_PRTCAP_OTG 3
162 #define DWC3_GCTL_CORESOFTRESET (1 << 11)
163 #define DWC3_GCTL_SCALEDOWN(n) ((n) << 4)
164 #define DWC3_GCTL_SCALEDOWN_MASK DWC3_GCTL_SCALEDOWN(3)
165 #define DWC3_GCTL_DISSCRAMBLE (1 << 3)
166 #define DWC3_GCTL_DSBLCLKGTNG (1 << 0)
168 /* Global USB2 PHY Configuration Register */
169 #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
170 #define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
172 /* Global USB3 PIPE Control Register */
173 #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
174 #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
176 /* Global TX Fifo Size Register */
177 #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff)
178 #define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0xffff0000)
180 /* Global HWPARAMS1 Register */
181 #define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24)) >> 24)
182 #define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
183 #define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
185 /* Device Configuration Register */
186 #define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
187 #define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
189 #define DWC3_DCFG_SPEED_MASK (7 << 0)
190 #define DWC3_DCFG_SUPERSPEED (4 << 0)
191 #define DWC3_DCFG_HIGHSPEED (0 << 0)
192 #define DWC3_DCFG_FULLSPEED2 (1 << 0)
193 #define DWC3_DCFG_LOWSPEED (2 << 0)
194 #define DWC3_DCFG_FULLSPEED1 (3 << 0)
196 /* Device Control Register */
197 #define DWC3_DCTL_RUN_STOP (1 << 31)
198 #define DWC3_DCTL_CSFTRST (1 << 30)
199 #define DWC3_DCTL_LSFTRST (1 << 29)
201 #define DWC3_DCTL_HIRD_THRES_MASK (0x1f << 24)
202 #define DWC3_DCTL_HIRD_THRES(n) (((n) & DWC3_DCTL_HIRD_THRES_MASK) >> 24)
204 #define DWC3_DCTL_APPL1RES (1 << 23)
206 #define DWC3_DCTL_TRGTULST_MASK (0x0f << 17)
207 #define DWC3_DCTL_TRGTULST(n) ((n) << 17)
209 #define DWC3_DCTL_TRGTULST_U2 (DWC3_DCTL_TRGTULST(2))
210 #define DWC3_DCTL_TRGTULST_U3 (DWC3_DCTL_TRGTULST(3))
211 #define DWC3_DCTL_TRGTULST_SS_DIS (DWC3_DCTL_TRGTULST(4))
212 #define DWC3_DCTL_TRGTULST_RX_DET (DWC3_DCTL_TRGTULST(5))
213 #define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6))
215 #define DWC3_DCTL_INITU2ENA (1 << 12)
216 #define DWC3_DCTL_ACCEPTU2ENA (1 << 11)
217 #define DWC3_DCTL_INITU1ENA (1 << 10)
218 #define DWC3_DCTL_ACCEPTU1ENA (1 << 9)
219 #define DWC3_DCTL_TSTCTRL_MASK (0xf << 1)
221 #define DWC3_DCTL_ULSTCHNGREQ_MASK (0x0f << 5)
222 #define DWC3_DCTL_ULSTCHNGREQ(n) (((n) << 5) & DWC3_DCTL_ULSTCHNGREQ_MASK)
224 #define DWC3_DCTL_ULSTCHNG_NO_ACTION (DWC3_DCTL_ULSTCHNGREQ(0))
225 #define DWC3_DCTL_ULSTCHNG_SS_DISABLED (DWC3_DCTL_ULSTCHNGREQ(4))
226 #define DWC3_DCTL_ULSTCHNG_RX_DETECT (DWC3_DCTL_ULSTCHNGREQ(5))
227 #define DWC3_DCTL_ULSTCHNG_SS_INACTIVE (DWC3_DCTL_ULSTCHNGREQ(6))
228 #define DWC3_DCTL_ULSTCHNG_RECOVERY (DWC3_DCTL_ULSTCHNGREQ(8))
229 #define DWC3_DCTL_ULSTCHNG_COMPLIANCE (DWC3_DCTL_ULSTCHNGREQ(10))
230 #define DWC3_DCTL_ULSTCHNG_LOOPBACK (DWC3_DCTL_ULSTCHNGREQ(11))
232 /* Device Event Enable Register */
233 #define DWC3_DEVTEN_VNDRDEVTSTRCVEDEN (1 << 12)
234 #define DWC3_DEVTEN_EVNTOVERFLOWEN (1 << 11)
235 #define DWC3_DEVTEN_CMDCMPLTEN (1 << 10)
236 #define DWC3_DEVTEN_ERRTICERREN (1 << 9)
237 #define DWC3_DEVTEN_SOFEN (1 << 7)
238 #define DWC3_DEVTEN_EOPFEN (1 << 6)
239 #define DWC3_DEVTEN_WKUPEVTEN (1 << 4)
240 #define DWC3_DEVTEN_ULSTCNGEN (1 << 3)
241 #define DWC3_DEVTEN_CONNECTDONEEN (1 << 2)
242 #define DWC3_DEVTEN_USBRSTEN (1 << 1)
243 #define DWC3_DEVTEN_DISCONNEVTEN (1 << 0)
245 /* Device Status Register */
246 #define DWC3_DSTS_PWRUPREQ (1 << 24)
247 #define DWC3_DSTS_COREIDLE (1 << 23)
248 #define DWC3_DSTS_DEVCTRLHLT (1 << 22)
250 #define DWC3_DSTS_USBLNKST_MASK (0x0f << 18)
251 #define DWC3_DSTS_USBLNKST(n) (((n) & DWC3_DSTS_USBLNKST_MASK) >> 18)
253 #define DWC3_DSTS_RXFIFOEMPTY (1 << 17)
255 #define DWC3_DSTS_SOFFN_MASK (0x3ff << 3)
256 #define DWC3_DSTS_SOFFN(n) (((n) & DWC3_DSTS_SOFFN_MASK) >> 3)
258 #define DWC3_DSTS_CONNECTSPD (7 << 0)
260 #define DWC3_DSTS_SUPERSPEED (4 << 0)
261 #define DWC3_DSTS_HIGHSPEED (0 << 0)
262 #define DWC3_DSTS_FULLSPEED2 (1 << 0)
263 #define DWC3_DSTS_LOWSPEED (2 << 0)
264 #define DWC3_DSTS_FULLSPEED1 (3 << 0)
266 /* Device Generic Command Register */
267 #define DWC3_DGCMD_SET_LMP 0x01
268 #define DWC3_DGCMD_SET_PERIODIC_PAR 0x02
269 #define DWC3_DGCMD_XMIT_FUNCTION 0x03
270 #define DWC3_DGCMD_SELECTED_FIFO_FLUSH 0x09
271 #define DWC3_DGCMD_ALL_FIFO_FLUSH 0x0a
272 #define DWC3_DGCMD_SET_ENDPOINT_NRDY 0x0c
273 #define DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK 0x10
275 /* Device Endpoint Command Register */
276 #define DWC3_DEPCMD_PARAM_SHIFT 16
277 #define DWC3_DEPCMD_PARAM(x) ((x) << DWC3_DEPCMD_PARAM_SHIFT)
278 #define DWC3_DEPCMD_GET_RSC_IDX(x) (((x) >> DWC3_DEPCMD_PARAM_SHIFT) & 0x7f)
279 #define DWC3_DEPCMD_STATUS_MASK (0x0f << 12)
280 #define DWC3_DEPCMD_STATUS(x) (((x) & DWC3_DEPCMD_STATUS_MASK) >> 12)
281 #define DWC3_DEPCMD_HIPRI_FORCERM (1 << 11)
282 #define DWC3_DEPCMD_CMDACT (1 << 10)
283 #define DWC3_DEPCMD_CMDIOC (1 << 8)
285 #define DWC3_DEPCMD_DEPSTARTCFG (0x09 << 0)
286 #define DWC3_DEPCMD_ENDTRANSFER (0x08 << 0)
287 #define DWC3_DEPCMD_UPDATETRANSFER (0x07 << 0)
288 #define DWC3_DEPCMD_STARTTRANSFER (0x06 << 0)
289 #define DWC3_DEPCMD_CLEARSTALL (0x05 << 0)
290 #define DWC3_DEPCMD_SETSTALL (0x04 << 0)
291 #define DWC3_DEPCMD_GETSEQNUMBER (0x03 << 0)
292 #define DWC3_DEPCMD_SETTRANSFRESOURCE (0x02 << 0)
293 #define DWC3_DEPCMD_SETEPCONFIG (0x01 << 0)
295 /* The EP number goes 0..31 so ep0 is always out and ep1 is always in */
296 #define DWC3_DALEPENA_EP(n) (1 << n)
298 #define DWC3_DEPCMD_TYPE_CONTROL 0
299 #define DWC3_DEPCMD_TYPE_ISOC 1
300 #define DWC3_DEPCMD_TYPE_BULK 2
301 #define DWC3_DEPCMD_TYPE_INTR 3
308 * struct dwc3_event_buffer - Software event buffer representation
309 * @list: a list of event buffers
311 * @length: size of this buffer
313 * @dwc: pointer to DWC controller
315 struct dwc3_event_buffer
{
325 #define DWC3_EP_FLAG_STALLED (1 << 0)
326 #define DWC3_EP_FLAG_WEDGED (1 << 1)
328 #define DWC3_EP_DIRECTION_TX true
329 #define DWC3_EP_DIRECTION_RX false
331 #define DWC3_TRB_NUM 32
332 #define DWC3_TRB_MASK (DWC3_TRB_NUM - 1)
335 * struct dwc3_ep - device side endpoint representation
336 * @endpoint: usb endpoint
337 * @request_list: list of requests for this endpoint
338 * @req_queued: list of requests on this ep which have TRBs setup
339 * @trb_pool: array of transaction buffers
340 * @trb_pool_dma: dma address of @trb_pool
341 * @free_slot: next slot which is going to be used
342 * @busy_slot: first slot which is owned by HW
343 * @desc: usb_endpoint_descriptor pointer
344 * @dwc: pointer to DWC controller
345 * @flags: endpoint flags (wedged, stalled, ...)
346 * @current_trb: index of current used trb
347 * @number: endpoint number (1 - 15)
348 * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
349 * @res_trans_idx: Resource transfer index
350 * @interval: the intervall on which the ISOC transfer is started
351 * @name: a human readable name e.g. ep1out-bulk
352 * @direction: true for TX, false for RX
353 * @stream_capable: true when streams are enabled
356 struct usb_ep endpoint
;
357 struct list_head request_list
;
358 struct list_head req_queued
;
360 struct dwc3_trb
*trb_pool
;
361 dma_addr_t trb_pool_dma
;
364 const struct usb_endpoint_descriptor
*desc
;
365 const struct usb_ss_ep_comp_descriptor
*comp_desc
;
369 #define DWC3_EP_ENABLED (1 << 0)
370 #define DWC3_EP_STALL (1 << 1)
371 #define DWC3_EP_WEDGE (1 << 2)
372 #define DWC3_EP_BUSY (1 << 4)
373 #define DWC3_EP_PENDING_REQUEST (1 << 5)
375 /* This last one is specific to EP0 */
376 #define DWC3_EP0_DIR_IN (1 << 31)
378 unsigned current_trb
;
387 unsigned direction
:1;
388 unsigned stream_capable
:1;
392 DWC3_PHY_UNKNOWN
= 0,
398 DWC3_EP0_UNKNOWN
= 0,
402 DWC3_EP0_NRDY_STATUS
,
405 enum dwc3_ep0_state
{
412 enum dwc3_link_state
{
414 DWC3_LINK_STATE_U0
= 0x00, /* in HS, means ON */
415 DWC3_LINK_STATE_U1
= 0x01,
416 DWC3_LINK_STATE_U2
= 0x02, /* in HS, means SLEEP */
417 DWC3_LINK_STATE_U3
= 0x03, /* in HS, means SUSPEND */
418 DWC3_LINK_STATE_SS_DIS
= 0x04,
419 DWC3_LINK_STATE_RX_DET
= 0x05, /* in HS, means Early Suspend */
420 DWC3_LINK_STATE_SS_INACT
= 0x06,
421 DWC3_LINK_STATE_POLL
= 0x07,
422 DWC3_LINK_STATE_RECOV
= 0x08,
423 DWC3_LINK_STATE_HRESET
= 0x09,
424 DWC3_LINK_STATE_CMPLY
= 0x0a,
425 DWC3_LINK_STATE_LPBK
= 0x0b,
426 DWC3_LINK_STATE_MASK
= 0x0f,
429 enum dwc3_device_state
{
432 DWC3_CONFIGURED_STATE
,
435 /* TRB Length, PCM and Status */
436 #define DWC3_TRB_SIZE_MASK (0x00ffffff)
437 #define DWC3_TRB_SIZE_LENGTH(n) ((n) & DWC3_TRB_SIZE_MASK)
438 #define DWC3_TRB_SIZE_PCM1(n) (((n) & 0x03) << 24)
439 #define DWC3_TRB_SIZE_TRBSTS(n) (((n) & (0x0f << 28) >> 28))
441 #define DWC3_TRBSTS_OK 0
442 #define DWC3_TRBSTS_MISSED_ISOC 1
443 #define DWC3_TRBSTS_SETUP_PENDING 2
446 #define DWC3_TRB_CTRL_HWO (1 << 0)
447 #define DWC3_TRB_CTRL_LST (1 << 1)
448 #define DWC3_TRB_CTRL_CHN (1 << 2)
449 #define DWC3_TRB_CTRL_CSP (1 << 3)
450 #define DWC3_TRB_CTRL_TRBCTL(n) (((n) & 0x3f) << 4)
451 #define DWC3_TRB_CTRL_ISP_IMI (1 << 10)
452 #define DWC3_TRB_CTRL_IOC (1 << 11)
453 #define DWC3_TRB_CTRL_SID_SOFN(n) (((n) & 0xffff) << 14)
455 #define DWC3_TRBCTL_NORMAL DWC3_TRB_CTRL_TRBCTL(1)
456 #define DWC3_TRBCTL_CONTROL_SETUP DWC3_TRB_CTRL_TRBCTL(2)
457 #define DWC3_TRBCTL_CONTROL_STATUS2 DWC3_TRB_CTRL_TRBCTL(3)
458 #define DWC3_TRBCTL_CONTROL_STATUS3 DWC3_TRB_CTRL_TRBCTL(4)
459 #define DWC3_TRBCTL_CONTROL_DATA DWC3_TRB_CTRL_TRBCTL(5)
460 #define DWC3_TRBCTL_ISOCHRONOUS_FIRST DWC3_TRB_CTRL_TRBCTL(6)
461 #define DWC3_TRBCTL_ISOCHRONOUS DWC3_TRB_CTRL_TRBCTL(7)
462 #define DWC3_TRBCTL_LINK_TRB DWC3_TRB_CTRL_TRBCTL(8)
465 * struct dwc3_trb - transfer request block (hw format)
479 * dwc3_hwparams - copy of HWPARAMS registers
480 * @hwparams0 - GHWPARAMS0
481 * @hwparams1 - GHWPARAMS1
482 * @hwparams2 - GHWPARAMS2
483 * @hwparams3 - GHWPARAMS3
484 * @hwparams4 - GHWPARAMS4
485 * @hwparams5 - GHWPARAMS5
486 * @hwparams6 - GHWPARAMS6
487 * @hwparams7 - GHWPARAMS7
488 * @hwparams8 - GHWPARAMS8
490 struct dwc3_hwparams
{
503 #define DWC3_MODE(n) ((n) & 0x7)
505 #define DWC3_MODE_DEVICE 0
506 #define DWC3_MODE_HOST 1
507 #define DWC3_MODE_DRD 2
508 #define DWC3_MODE_HUB 3
510 #define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8)
513 #define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15)
516 #define DWC3_RAM1_DEPTH(n) ((n) & 0xffff)
518 struct dwc3_request
{
519 struct usb_request request
;
520 struct list_head list
;
524 struct dwc3_trb
*trb
;
527 unsigned direction
:1;
533 * struct dwc3 - representation of our controller
534 * @ctrl_req: usb control request which is used for ep0
535 * @ep0_trb: trb which is used for the ctrl_req
536 * @ep0_bounce: bounce buffer for ep0
537 * @setup_buf: used while precessing STD USB requests
538 * @ctrl_req_addr: dma address of ctrl_req
539 * @ep0_trb: dma address of ep0_trb
540 * @ep0_usb_req: dummy req used while handling STD USB requests
541 * @ep0_bounce_addr: dma address of ep0_bounce
542 * @lock: for synchronizing
543 * @dev: pointer to our struct device
544 * @xhci: pointer to our xHCI child
545 * @event_buffer_list: a list of event buffers
546 * @gadget: device side representation of the peripheral controller
547 * @gadget_driver: pointer to the gadget driver
548 * @regs: base address for our registers
549 * @regs_size: address space size
551 * @num_event_buffers: calculated number of event buffers
552 * @u1u2: only used on revisions <1.83a for workaround
553 * @maximum_speed: maximum speed requested (mainly for testing purposes)
554 * @revision: revision register contents
555 * @mode: mode of operation
556 * @is_selfpowered: true when we are selfpowered
557 * @three_stage_setup: set if we perform a three phase setup
558 * @ep0_bounced: true when we used bounce buffer
559 * @ep0_expect_in: true when we expect a DATA IN transfer
560 * @start_config_issued: true when StartConfig command has been issued
561 * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
562 * @needs_fifo_resize: not all users might want fifo resizing, flag it
563 * @resize_fifos: tells us it's ok to reconfigure our TxFIFO sizes.
564 * @ep0_next_event: hold the next expected event
565 * @ep0state: state of endpoint zero
566 * @link_state: link state
567 * @speed: device speed (super, high, full, low)
568 * @mem: points to start of memory which is used for this struct.
569 * @hwparams: copy of hwparams registers
570 * @root: debugfs root folder pointer
573 struct usb_ctrlrequest
*ctrl_req
;
574 struct dwc3_trb
*ep0_trb
;
577 dma_addr_t ctrl_req_addr
;
578 dma_addr_t ep0_trb_addr
;
579 dma_addr_t ep0_bounce_addr
;
580 struct dwc3_request ep0_usb_req
;
585 struct platform_device
*xhci
;
586 struct resource
*res
;
588 struct dwc3_event_buffer
**ev_buffs
;
589 struct dwc3_ep
*eps
[DWC3_ENDPOINTS_NUM
];
591 struct usb_gadget gadget
;
592 struct usb_gadget_driver
*gadget_driver
;
599 u32 num_event_buffers
;
605 #define DWC3_REVISION_173A 0x5533173a
606 #define DWC3_REVISION_175A 0x5533175a
607 #define DWC3_REVISION_180A 0x5533180a
608 #define DWC3_REVISION_183A 0x5533183a
609 #define DWC3_REVISION_185A 0x5533185a
610 #define DWC3_REVISION_188A 0x5533188a
611 #define DWC3_REVISION_190A 0x5533190a
613 unsigned is_selfpowered
:1;
614 unsigned three_stage_setup
:1;
615 unsigned ep0_bounced
:1;
616 unsigned ep0_expect_in
:1;
617 unsigned start_config_issued
:1;
618 unsigned setup_packet_pending
:1;
619 unsigned delayed_status
:1;
620 unsigned needs_fifo_resize
:1;
621 unsigned resize_fifos
:1;
623 enum dwc3_ep0_next ep0_next_event
;
624 enum dwc3_ep0_state ep0state
;
625 enum dwc3_link_state link_state
;
626 enum dwc3_device_state dev_state
;
631 struct dwc3_hwparams hwparams
;
638 /* -------------------------------------------------------------------------- */
640 /* -------------------------------------------------------------------------- */
642 struct dwc3_event_type
{
648 #define DWC3_DEPEVT_XFERCOMPLETE 0x01
649 #define DWC3_DEPEVT_XFERINPROGRESS 0x02
650 #define DWC3_DEPEVT_XFERNOTREADY 0x03
651 #define DWC3_DEPEVT_RXTXFIFOEVT 0x04
652 #define DWC3_DEPEVT_STREAMEVT 0x06
653 #define DWC3_DEPEVT_EPCMDCMPLT 0x07
656 * struct dwc3_event_depvt - Device Endpoint Events
657 * @one_bit: indicates this is an endpoint event (not used)
658 * @endpoint_number: number of the endpoint
659 * @endpoint_event: The event we have:
661 * 0x01 - XferComplete
662 * 0x02 - XferInProgress
663 * 0x03 - XferNotReady
664 * 0x04 - RxTxFifoEvt (IN->Underrun, OUT->Overrun)
668 * @reserved11_10: Reserved, don't use.
669 * @status: Indicates the status of the event. Refer to databook for
671 * @parameters: Parameters of the current event. Refer to databook for
674 struct dwc3_event_depevt
{
676 u32 endpoint_number
:5;
677 u32 endpoint_event
:4;
681 /* Within XferNotReady */
682 #define DEPEVT_STATUS_TRANSFER_ACTIVE (1 << 3)
684 /* Within XferComplete */
685 #define DEPEVT_STATUS_BUSERR (1 << 0)
686 #define DEPEVT_STATUS_SHORT (1 << 1)
687 #define DEPEVT_STATUS_IOC (1 << 2)
688 #define DEPEVT_STATUS_LST (1 << 3)
690 /* Stream event only */
691 #define DEPEVT_STREAMEVT_FOUND 1
692 #define DEPEVT_STREAMEVT_NOTFOUND 2
694 /* Control-only Status */
695 #define DEPEVT_STATUS_CONTROL_SETUP 0
696 #define DEPEVT_STATUS_CONTROL_DATA 1
697 #define DEPEVT_STATUS_CONTROL_STATUS 2
703 * struct dwc3_event_devt - Device Events
704 * @one_bit: indicates this is a non-endpoint event (not used)
705 * @device_event: indicates it's a device event. Should read as 0x00
706 * @type: indicates the type of device event.
719 * 12 - VndrDevTstRcved
720 * @reserved15_12: Reserved, not used
721 * @event_info: Information about this event
722 * @reserved31_24: Reserved, not used
724 struct dwc3_event_devt
{
734 * struct dwc3_event_gevt - Other Core Events
735 * @one_bit: indicates this is a non-endpoint event (not used)
736 * @device_event: indicates it's (0x03) Carkit or (0x04) I2C event.
737 * @phy_port_number: self-explanatory
738 * @reserved31_12: Reserved, not used.
740 struct dwc3_event_gevt
{
743 u32 phy_port_number
:4;
744 u32 reserved31_12
:20;
748 * union dwc3_event - representation of Event Buffer contents
749 * @raw: raw 32-bit event
750 * @type: the type of the event
751 * @depevt: Device Endpoint Event
752 * @devt: Device Event
753 * @gevt: Global Event
757 struct dwc3_event_type type
;
758 struct dwc3_event_depevt depevt
;
759 struct dwc3_event_devt devt
;
760 struct dwc3_event_gevt gevt
;
764 * DWC3 Features to be used as Driver Data
767 #define DWC3_HAS_PERIPHERAL BIT(0)
768 #define DWC3_HAS_XHCI BIT(1)
769 #define DWC3_HAS_OTG BIT(3)
772 void dwc3_set_mode(struct dwc3
*dwc
, u32 mode
);
773 int dwc3_gadget_resize_tx_fifos(struct dwc3
*dwc
);
775 int dwc3_host_init(struct dwc3
*dwc
);
776 void dwc3_host_exit(struct dwc3
*dwc
);
778 int dwc3_gadget_init(struct dwc3
*dwc
);
779 void dwc3_gadget_exit(struct dwc3
*dwc
);
781 extern int dwc3_get_device_id(void);
782 extern void dwc3_put_device_id(int id
);
784 #endif /* __DRIVERS_USB_DWC3_CORE_H */