xref: /dragonfly/sys/bus/u4b/controller/xhci.h (revision e7d467f4)
1 /* $FreeBSD$ */
2 
3 /*-
4  * Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifndef _XHCI_H_
29 #define	_XHCI_H_
30 
31 #define	XHCI_MAX_DEVICES	MIN(USB_MAX_DEVICES, 128)
32 #define	XHCI_MAX_ENDPOINTS	32	/* hardcoded - do not change */
33 #define	XHCI_MAX_SCRATCHPADS	32
34 #define	XHCI_MAX_EVENTS		(16 * 13)
35 #define	XHCI_MAX_COMMANDS	(16 * 1)
36 #define	XHCI_MAX_RSEG		1
37 #define	XHCI_MAX_TRANSFERS	4
38 
39 #define	XHCI_DEV_CTX_ADDR_ALIGN		64	/* bytes */
40 #define	XHCI_DEV_CTX_ALIGN		64	/* bytes */
41 #define	XHCI_INPUT_CTX_ALIGN		64	/* bytes */
42 #define	XHCI_SLOT_CTX_ALIGN		32	/* bytes */
43 #define	XHCI_ENDP_CTX_ALIGN		32	/* bytes */
44 #define	XHCI_STREAM_CTX_ALIGN		16	/* bytes */
45 #define	XHCI_TRANS_RING_SEG_ALIGN	16	/* bytes */
46 #define	XHCI_CMD_RING_SEG_ALIGN		64	/* bytes */
47 #define	XHCI_EVENT_RING_SEG_ALIGN	64	/* bytes */
48 #define	XHCI_SCRATCH_BUF_ARRAY_ALIGN	64	/* bytes */
49 #define	XHCI_SCRATCH_BUFFER_ALIGN	USB_PAGE_SIZE
50 #define	XHCI_TRB_ALIGN			16	/* bytes */
51 #define	XHCI_TD_ALIGN			64	/* bytes */
52 #define	XHCI_PAGE_SIZE			4096	/* bytes */
53 
54 struct xhci_dev_ctx_addr {
55 	volatile uint64_t	qwBaaDevCtxAddr[USB_MAX_DEVICES + 1];
56 	struct {
57 		volatile uint64_t dummy;
58 	} __aligned(64) padding;
59 	volatile uint64_t	qwSpBufPtr[XHCI_MAX_SCRATCHPADS];
60 };
61 
62 #define	XHCI_EPNO2EPID(x) \
63     ((((x) & UE_DIR_IN) ? 1 : 0) | (2 * ((x) & UE_ADDR)))
64 
65 struct xhci_slot_ctx {
66 	volatile uint32_t	dwSctx0;
67 #define	XHCI_SCTX_0_ROUTE_SET(x)		((x) & 0xFFFFF)
68 #define	XHCI_SCTX_0_ROUTE_GET(x)		((x) & 0xFFFFF)
69 #define	XHCI_SCTX_0_SPEED_SET(x)		(((x) & 0xF) << 20)
70 #define	XHCI_SCTX_0_SPEED_GET(x)		(((x) >> 20) & 0xF)
71 #define	XHCI_SCTX_0_MTT_SET(x)			(((x) & 0x1) << 25)
72 #define	XHCI_SCTX_0_MTT_GET(x)			(((x) >> 25) & 0x1)
73 #define	XHCI_SCTX_0_HUB_SET(x)			(((x) & 0x1) << 26)
74 #define	XHCI_SCTX_0_HUB_GET(x)			(((x) >> 26) & 0x1)
75 #define	XHCI_SCTX_0_CTX_NUM_SET(x)		(((x) & 0x1F) << 27)
76 #define	XHCI_SCTX_0_CTX_NUM_GET(x)		(((x) >> 27) & 0x1F)
77 	volatile uint32_t	dwSctx1;
78 #define	XHCI_SCTX_1_MAX_EL_SET(x)		((x) & 0xFFFF)
79 #define	XHCI_SCTX_1_MAX_EL_GET(x)		((x) & 0xFFFF)
80 #define	XHCI_SCTX_1_RH_PORT_SET(x)		(((x) & 0xFF) << 16)
81 #define	XHCI_SCTX_1_RH_PORT_GET(x)		(((x) >> 16) & 0xFF)
82 #define	XHCI_SCTX_1_NUM_PORTS_SET(x)		(((x) & 0xFF) << 24)
83 #define	XHCI_SCTX_1_NUM_PORTS_GET(x)		(((x) >> 24) & 0xFF)
84 	volatile uint32_t	dwSctx2;
85 #define	XHCI_SCTX_2_TT_HUB_SID_SET(x)		((x) & 0xFF)
86 #define	XHCI_SCTX_2_TT_HUB_SID_GET(x)		((x) & 0xFF)
87 #define	XHCI_SCTX_2_TT_PORT_NUM_SET(x)		(((x) & 0xFF) << 8)
88 #define	XHCI_SCTX_2_TT_PORT_NUM_GET(x)		(((x) >> 8) & 0xFF)
89 #define	XHCI_SCTX_2_TT_THINK_TIME_SET(x)	(((x) & 0x3) << 16)
90 #define	XHCI_SCTX_2_TT_THINK_TIME_GET(x)	(((x) >> 16) & 0x3)
91 #define	XHCI_SCTX_2_IRQ_TARGET_SET(x)		(((x) & 0x3FF) << 22)
92 #define	XHCI_SCTX_2_IRQ_TARGET_GET(x)		(((x) >> 22) & 0x3FF)
93 	volatile uint32_t	dwSctx3;
94 #define	XHCI_SCTX_3_DEV_ADDR_SET(x)		((x) & 0xFF)
95 #define	XHCI_SCTX_3_DEV_ADDR_GET(x)		((x) & 0xFF)
96 #define	XHCI_SCTX_3_SLOT_STATE_SET(x)		(((x) & 0x1F) << 27)
97 #define	XHCI_SCTX_3_SLOT_STATE_GET(x)		(((x) >> 27) & 0x1F)
98 	volatile uint32_t	dwSctx4;
99 	volatile uint32_t	dwSctx5;
100 	volatile uint32_t	dwSctx6;
101 	volatile uint32_t	dwSctx7;
102 };
103 
104 struct xhci_endp_ctx {
105 	volatile uint32_t	dwEpCtx0;
106 #define	XHCI_EPCTX_0_EPSTATE_SET(x)		((x) & 0x7)
107 #define	XHCI_EPCTX_0_EPSTATE_GET(x)		((x) & 0x7)
108 #define	XHCI_EPCTX_0_MULT_SET(x)		(((x) & 0x3) << 8)
109 #define	XHCI_EPCTX_0_MULT_GET(x)		(((x) >> 8) & 0x3)
110 #define	XHCI_EPCTX_0_MAXP_STREAMS_SET(x)	(((x) & 0x1F) << 10)
111 #define	XHCI_EPCTX_0_MAXP_STREAMS_GET(x)	(((x) >> 10) & 0x1F)
112 #define	XHCI_EPCTX_0_LSA_SET(x)			(((x) & 0x1) << 15)
113 #define	XHCI_EPCTX_0_LSA_GET(x)			(((x) >> 15) & 0x1)
114 #define	XHCI_EPCTX_0_IVAL_SET(x)		(((x) & 0xFF) << 16)
115 #define	XHCI_EPCTX_0_IVAL_GET(x)		(((x) >> 16) & 0xFF)
116 	volatile uint32_t	dwEpCtx1;
117 #define	XHCI_EPCTX_1_CERR_SET(x)		(((x) & 0x3) << 1)
118 #define	XHCI_EPCTX_1_CERR_GET(x)		(((x) >> 1) & 0x3)
119 #define	XHCI_EPCTX_1_EPTYPE_SET(x)		(((x) & 0x7) << 3)
120 #define	XHCI_EPCTX_1_EPTYPE_GET(x)		(((x) >> 3) & 0x7)
121 #define	XHCI_EPCTX_1_HID_SET(x)			(((x) & 0x1) << 7)
122 #define	XHCI_EPCTX_1_HID_GET(x)			(((x) >> 7) & 0x1)
123 #define	XHCI_EPCTX_1_MAXB_SET(x)		(((x) & 0xFF) << 8)
124 #define	XHCI_EPCTX_1_MAXB_GET(x)		(((x) >> 8) & 0xFF)
125 #define	XHCI_EPCTX_1_MAXP_SIZE_SET(x)		(((x) & 0xFFFF) << 16)
126 #define	XHCI_EPCTX_1_MAXP_SIZE_GET(x)		(((x) >> 16) & 0xFFFF)
127 	volatile uint64_t	qwEpCtx2;
128 #define	XHCI_EPCTX_2_DCS_SET(x)			((x) & 0x1)
129 #define	XHCI_EPCTX_2_DCS_GET(x)			((x) & 0x1)
130 #define	XHCI_EPCTX_2_TR_DQ_PTR_MASK		0xFFFFFFFFFFFFFFF0U
131 	volatile uint32_t	dwEpCtx4;
132 #define	XHCI_EPCTX_4_AVG_TRB_LEN_SET(x)		((x) & 0xFFFF)
133 #define	XHCI_EPCTX_4_AVG_TRB_LEN_GET(x)		((x) & 0xFFFF)
134 #define	XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_SET(x)	(((x) & 0xFFFF) << 16)
135 #define	XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_GET(x)	(((x) >> 16) & 0xFFFF)
136 	volatile uint32_t	dwEpCtx5;
137 	volatile uint32_t	dwEpCtx6;
138 	volatile uint32_t	dwEpCtx7;
139 };
140 
141 struct xhci_input_ctx {
142 #define	XHCI_INCTX_NON_CTRL_MASK	0xFFFFFFFCU
143 	volatile uint32_t	dwInCtx0;
144 #define	XHCI_INCTX_0_DROP_MASK(n)	(1U << (n))
145 	volatile uint32_t	dwInCtx1;
146 #define	XHCI_INCTX_1_ADD_MASK(n)	(1U << (n))
147 	volatile uint32_t	dwInCtx2;
148 	volatile uint32_t	dwInCtx3;
149 	volatile uint32_t	dwInCtx4;
150 	volatile uint32_t	dwInCtx5;
151 	volatile uint32_t	dwInCtx6;
152 	volatile uint32_t	dwInCtx7;
153 };
154 
155 struct xhci_input_dev_ctx {
156 	struct xhci_input_ctx	ctx_input;
157 	struct xhci_slot_ctx	ctx_slot;
158 	struct xhci_endp_ctx	ctx_ep[XHCI_MAX_ENDPOINTS - 1];
159 };
160 
161 struct xhci_dev_ctx {
162 	struct xhci_slot_ctx	ctx_slot;
163 	struct xhci_endp_ctx	ctx_ep[XHCI_MAX_ENDPOINTS - 1];
164 } __aligned(XHCI_DEV_CTX_ALIGN);
165 
166 struct xhci_stream_ctx {
167 	volatile uint64_t	qwSctx0;
168 #define	XHCI_SCTX_0_DCS_GET(x)		((x) & 0x1)
169 #define	XHCI_SCTX_0_DCS_SET(x)		((x) & 0x1)
170 #define	XHCI_SCTX_0_SCT_SET(x)		(((x) & 0x7) << 1)
171 #define	XHCI_SCTX_0_SCT_GET(x)		(((x) >> 1) & 0x7)
172 #define	XHCI_SCTX_0_SCT_SEC_TR_RING	0x0
173 #define	XHCI_SCTX_0_SCT_PRIM_TR_RING	0x1
174 #define	XHCI_SCTX_0_SCT_PRIM_SSA_8	0x2
175 #define	XHCI_SCTX_0_SCT_PRIM_SSA_16	0x3
176 #define	XHCI_SCTX_0_SCT_PRIM_SSA_32	0x4
177 #define	XHCI_SCTX_0_SCT_PRIM_SSA_64	0x5
178 #define	XHCI_SCTX_0_SCT_PRIM_SSA_128	0x6
179 #define	XHCI_SCTX_0_SCT_PRIM_SSA_256	0x7
180 #define	XHCI_SCTX_0_TR_DQ_PTR_MASK	0xFFFFFFFFFFFFFFF0U
181 	volatile uint32_t	dwSctx2;
182 	volatile uint32_t	dwSctx3;
183 };
184 
185 struct xhci_trb {
186 	volatile uint64_t	qwTrb0;
187 #define	XHCI_TRB_0_WLENGTH_MASK		(0xFFFFULL << 48)
188 	volatile uint32_t	dwTrb2;
189 #define	XHCI_TRB_2_ERROR_GET(x)		(((x) >> 24) & 0xFF)
190 #define	XHCI_TRB_2_ERROR_SET(x)		(((x) & 0xFF) << 24)
191 #define	XHCI_TRB_2_TDSZ_GET(x)		(((x) >> 17) & 0x1F)
192 #define	XHCI_TRB_2_TDSZ_SET(x)		(((x) & 0x1F) << 17)
193 #define	XHCI_TRB_2_REM_GET(x)		((x) & 0xFFFFFF)
194 #define	XHCI_TRB_2_REM_SET(x)		((x) & 0xFFFFFF)
195 #define	XHCI_TRB_2_BYTES_GET(x)		((x) & 0x1FFFF)
196 #define	XHCI_TRB_2_BYTES_SET(x)		((x) & 0x1FFFF)
197 #define	XHCI_TRB_2_IRQ_GET(x)		(((x) >> 22) & 0x3FF)
198 #define	XHCI_TRB_2_IRQ_SET(x)		(((x) & 0x3FF) << 22)
199 #define	XHCI_TRB_2_STREAM_GET(x)	(((x) >> 16) & 0xFFFF)
200 #define	XHCI_TRB_2_STREAM_SET(x)	(((x) & 0xFFFF) << 16)
201 
202 	volatile uint32_t	dwTrb3;
203 #define	XHCI_TRB_3_TYPE_GET(x)		(((x) >> 10) & 0x3F)
204 #define	XHCI_TRB_3_TYPE_SET(x)		(((x) & 0x3F) << 10)
205 #define	XHCI_TRB_3_CYCLE_BIT		(1U << 0)
206 #define	XHCI_TRB_3_TC_BIT		(1U << 1)	/* command ring only */
207 #define	XHCI_TRB_3_ENT_BIT		(1U << 1)	/* transfer ring only */
208 #define	XHCI_TRB_3_ISP_BIT		(1U << 2)
209 #define	XHCI_TRB_3_NSNOOP_BIT		(1U << 3)
210 #define	XHCI_TRB_3_CHAIN_BIT		(1U << 4)
211 #define	XHCI_TRB_3_IOC_BIT		(1U << 5)
212 #define	XHCI_TRB_3_IDT_BIT		(1U << 6)
213 #define	XHCI_TRB_3_TBC_GET(x)		(((x) >> 7) & 3)
214 #define	XHCI_TRB_3_TBC_SET(x)		(((x) & 3) << 7)
215 #define	XHCI_TRB_3_BEI_BIT		(1U << 9)
216 #define	XHCI_TRB_3_DCEP_BIT		(1U << 9)
217 #define	XHCI_TRB_3_PRSV_BIT		(1U << 9)
218 #define	XHCI_TRB_3_BSR_BIT		(1U << 9)
219 #define	XHCI_TRB_3_TRT_MASK		(3U << 16)
220 #define	XHCI_TRB_3_TRT_NONE		(0U << 16)
221 #define	XHCI_TRB_3_TRT_OUT		(2U << 16)
222 #define	XHCI_TRB_3_TRT_IN		(3U << 16)
223 #define	XHCI_TRB_3_DIR_IN		(1U << 16)
224 #define	XHCI_TRB_3_TLBPC_GET(x)		(((x) >> 16) & 0xF)
225 #define	XHCI_TRB_3_TLBPC_SET(x)		(((x) & 0xF) << 16)
226 #define	XHCI_TRB_3_EP_GET(x)		(((x) >> 16) & 0x1F)
227 #define	XHCI_TRB_3_EP_SET(x)		(((x) & 0x1F) << 16)
228 #define	XHCI_TRB_3_FRID_GET(x)		(((x) >> 20) & 0x7FF)
229 #define	XHCI_TRB_3_FRID_SET(x)		(((x) & 0x7FF) << 20)
230 #define	XHCI_TRB_3_ISO_SIA_BIT		(1U << 31)
231 #define	XHCI_TRB_3_SUSP_EP_BIT		(1U << 23)
232 #define	XHCI_TRB_3_SLOT_GET(x)		(((x) >> 24) & 0xFF)
233 #define	XHCI_TRB_3_SLOT_SET(x)		(((x) & 0xFF) << 24)
234 
235 /* Commands */
236 #define	XHCI_TRB_TYPE_RESERVED		0x00
237 #define	XHCI_TRB_TYPE_NORMAL		0x01
238 #define	XHCI_TRB_TYPE_SETUP_STAGE	0x02
239 #define	XHCI_TRB_TYPE_DATA_STAGE	0x03
240 #define	XHCI_TRB_TYPE_STATUS_STAGE	0x04
241 #define	XHCI_TRB_TYPE_ISOCH		0x05
242 #define	XHCI_TRB_TYPE_LINK		0x06
243 #define	XHCI_TRB_TYPE_EVENT_DATA	0x07
244 #define	XHCI_TRB_TYPE_NOOP		0x08
245 #define	XHCI_TRB_TYPE_ENABLE_SLOT	0x09
246 #define	XHCI_TRB_TYPE_DISABLE_SLOT	0x0A
247 #define	XHCI_TRB_TYPE_ADDRESS_DEVICE	0x0B
248 #define	XHCI_TRB_TYPE_CONFIGURE_EP	0x0C
249 #define	XHCI_TRB_TYPE_EVALUATE_CTX	0x0D
250 #define	XHCI_TRB_TYPE_RESET_EP		0x0E
251 #define	XHCI_TRB_TYPE_STOP_EP		0x0F
252 #define	XHCI_TRB_TYPE_SET_TR_DEQUEUE	0x10
253 #define	XHCI_TRB_TYPE_RESET_DEVICE	0x11
254 #define	XHCI_TRB_TYPE_FORCE_EVENT	0x12
255 #define	XHCI_TRB_TYPE_NEGOTIATE_BW	0x13
256 #define	XHCI_TRB_TYPE_SET_LATENCY_TOL  	0x14
257 #define	XHCI_TRB_TYPE_GET_PORT_BW	0x15
258 #define	XHCI_TRB_TYPE_FORCE_HEADER	0x16
259 #define	XHCI_TRB_TYPE_NOOP_CMD		0x17
260 
261 /* Events */
262 #define	XHCI_TRB_EVENT_TRANSFER		0x20
263 #define	XHCI_TRB_EVENT_CMD_COMPLETE	0x21
264 #define	XHCI_TRB_EVENT_PORT_STS_CHANGE  0x22
265 #define	XHCI_TRB_EVENT_BW_REQUEST      	0x23
266 #define	XHCI_TRB_EVENT_DOORBELL		0x24
267 #define	XHCI_TRB_EVENT_HOST_CTRL	0x25
268 #define	XHCI_TRB_EVENT_DEVICE_NOTIFY	0x26
269 #define	XHCI_TRB_EVENT_MFINDEX_WRAP	0x27
270 
271 /* Error codes */
272 #define	XHCI_TRB_ERROR_INVALID		0x00
273 #define	XHCI_TRB_ERROR_SUCCESS		0x01
274 #define	XHCI_TRB_ERROR_DATA_BUF		0x02
275 #define	XHCI_TRB_ERROR_BABBLE		0x03
276 #define	XHCI_TRB_ERROR_XACT		0x04
277 #define	XHCI_TRB_ERROR_TRB		0x05
278 #define	XHCI_TRB_ERROR_STALL		0x06
279 #define	XHCI_TRB_ERROR_RESOURCE		0x07
280 #define	XHCI_TRB_ERROR_BANDWIDTH	0x08
281 #define	XHCI_TRB_ERROR_NO_SLOTS		0x09
282 #define	XHCI_TRB_ERROR_STREAM_TYPE	0x0A
283 #define	XHCI_TRB_ERROR_SLOT_NOT_ON	0x0B
284 #define	XHCI_TRB_ERROR_ENDP_NOT_ON	0x0C
285 #define	XHCI_TRB_ERROR_SHORT_PKT	0x0D
286 #define	XHCI_TRB_ERROR_RING_UNDERRUN	0x0E
287 #define	XHCI_TRB_ERROR_RING_OVERRUN	0x0F
288 #define	XHCI_TRB_ERROR_VF_RING_FULL	0x10
289 #define	XHCI_TRB_ERROR_PARAMETER	0x11
290 #define	XHCI_TRB_ERROR_BW_OVERRUN	0x12
291 #define	XHCI_TRB_ERROR_CONTEXT_STATE	0x13
292 #define	XHCI_TRB_ERROR_NO_PING_RESP	0x14
293 #define	XHCI_TRB_ERROR_EV_RING_FULL	0x15
294 #define	XHCI_TRB_ERROR_INCOMPAT_DEV	0x16
295 #define	XHCI_TRB_ERROR_MISSED_SERVICE	0x17
296 #define	XHCI_TRB_ERROR_CMD_RING_STOP	0x18
297 #define	XHCI_TRB_ERROR_CMD_ABORTED	0x19
298 #define	XHCI_TRB_ERROR_STOPPED		0x1A
299 #define	XHCI_TRB_ERROR_LENGTH		0x1B
300 #define	XHCI_TRB_ERROR_BAD_MELAT	0x1D
301 #define	XHCI_TRB_ERROR_ISOC_OVERRUN	0x1F
302 #define	XHCI_TRB_ERROR_EVENT_LOST	0x20
303 #define	XHCI_TRB_ERROR_UNDEFINED	0x21
304 #define	XHCI_TRB_ERROR_INVALID_SID	0x22
305 #define	XHCI_TRB_ERROR_SEC_BW		0x23
306 #define	XHCI_TRB_ERROR_SPLIT_XACT	0x24
307 } __aligned(4);
308 
309 struct xhci_dev_endpoint_trbs {
310 	struct xhci_trb		trb[XHCI_MAX_ENDPOINTS][XHCI_MAX_TRANSFERS];
311 };
312 
313 #define	XHCI_TD_PAGE_NBUF	17	/* units, room enough for 64Kbytes */
314 #define	XHCI_TD_PAGE_SIZE	4096	/* bytes */
315 #define	XHCI_TD_PAYLOAD_MAX	(XHCI_TD_PAGE_SIZE * (XHCI_TD_PAGE_NBUF - 1))
316 
317 struct xhci_td {
318 	struct xhci_trb		td_trb[XHCI_TD_PAGE_NBUF + 1];
319 
320 /*
321  * Extra information needed:
322  */
323 	uint64_t		td_self;
324 	struct xhci_td		*next;
325 	struct xhci_td		*alt_next;
326 	struct xhci_td		*obj_next;
327 	struct usb_page_cache	*page_cache;
328 	uint32_t		len;
329 	uint32_t		remainder;
330 	uint8_t			ntrb;
331 	uint8_t			status;
332 } __aligned(XHCI_TRB_ALIGN);
333 
334 struct xhci_command {
335 	struct xhci_trb		trb;
336 	TAILQ_ENTRY(xhci_command) entry;
337 };
338 
339 struct xhci_event_ring_seg {
340 	volatile uint64_t	qwEvrsTablePtr;
341 	volatile uint32_t	dwEvrsTableSize;
342 	volatile uint32_t	dwEvrsReserved;
343 };
344 
345 struct xhci_hw_root {
346 	struct xhci_event_ring_seg	hwr_ring_seg[XHCI_MAX_RSEG];
347 	struct {
348 		volatile uint64_t dummy;
349 	} __aligned(64)			padding;
350 	struct xhci_trb			hwr_events[XHCI_MAX_EVENTS];
351 	struct xhci_trb			hwr_commands[XHCI_MAX_COMMANDS];
352 };
353 
354 struct xhci_endpoint_ext {
355 	struct xhci_trb		*trb;
356 	struct usb_xfer		*xfer[XHCI_MAX_TRANSFERS - 1];
357 	struct usb_page_cache	*page_cache;
358 	uint64_t		physaddr;
359 	uint8_t			trb_used;
360 	uint8_t			trb_index;
361 	uint8_t			trb_halted;
362 	uint8_t			trb_running;
363 };
364 
365 enum {
366 	XHCI_ST_DISABLED,
367 	XHCI_ST_ENABLED,
368 	XHCI_ST_DEFAULT,
369 	XHCI_ST_ADDRESSED,
370 	XHCI_ST_CONFIGURED,
371 	XHCI_ST_MAX
372 };
373 
374 struct xhci_hw_dev {
375 	struct usb_page_cache	device_pc;
376 	struct usb_page_cache	input_pc;
377 	struct usb_page_cache	endpoint_pc;
378 
379 	struct usb_page		device_pg;
380 	struct usb_page		input_pg;
381 	struct usb_page		endpoint_pg;
382 
383 	struct xhci_endpoint_ext endp[XHCI_MAX_ENDPOINTS];
384 
385 	uint8_t			state;
386 	uint8_t			nports;
387 	uint8_t			tt;
388 	uint8_t			reserved;
389 };
390 
391 struct xhci_hw_softc {
392 	struct usb_page_cache	root_pc;
393 	struct usb_page_cache	ctx_pc;
394 	struct usb_page_cache	scratch_pc[XHCI_MAX_SCRATCHPADS];
395 
396 	struct usb_page		root_pg;
397 	struct usb_page		ctx_pg;
398 	struct usb_page		scratch_pg[XHCI_MAX_SCRATCHPADS];
399 
400 	struct xhci_hw_dev	devs[XHCI_MAX_DEVICES + 1];
401 };
402 
403 struct xhci_config_desc {
404 	struct usb_config_descriptor		confd;
405 	struct usb_interface_descriptor		ifcd;
406 	struct usb_endpoint_descriptor		endpd;
407 	struct usb_endpoint_ss_comp_descriptor	endpcd;
408 } __packed;
409 
410 struct xhci_bos_desc {
411 	struct usb_bos_descriptor		bosd;
412 	struct usb_devcap_usb2ext_descriptor	usb2extd;
413 	struct usb_devcap_ss_descriptor		usbdcd;
414 	struct usb_devcap_container_id_descriptor cidd;
415 } __packed;
416 
417 union xhci_hub_desc {
418 	struct usb_status		stat;
419 	struct usb_port_status		ps;
420 	struct usb_hub_ss_descriptor	hubd;
421 	uint8_t				temp[128];
422 };
423 
424 struct xhci_softc {
425 	struct xhci_hw_softc	sc_hw;
426 	/* base device */
427 	struct usb_bus		sc_bus;
428 	/* configure process */
429 	struct usb_process	sc_config_proc;
430 	struct usb_bus_msg	sc_config_msg[2];
431 
432 	union xhci_hub_desc	sc_hub_desc;
433 
434 	struct cv		sc_cmd_cv;
435 	struct lock		sc_cmd_lock;
436 
437 	struct usb_device	*sc_devices[XHCI_MAX_DEVICES];
438 	struct resource		*sc_io_res;
439 	struct resource		*sc_irq_res;
440 
441 	void			*sc_intr_hdl;
442 	bus_size_t		sc_io_size;
443 	bus_space_tag_t		sc_io_tag;
444 	bus_space_handle_t	sc_io_hdl;
445 	/* last pending command address */
446 	uint64_t		sc_cmd_addr;
447 	/* result of command */
448 	uint32_t		sc_cmd_result[2];
449  	/* copy of cmd register */
450 	uint32_t		sc_cmd;
451 	/* worst case exit latency */
452 	uint32_t		sc_exit_lat_max;
453 
454 	/* offset to operational registers */
455 	uint32_t		sc_oper_off;
456 	/* offset to capability registers */
457 	uint32_t		sc_capa_off;
458 	/* offset to runtime registers */
459 	uint32_t		sc_runt_off;
460 	/* offset to doorbell registers */
461 	uint32_t		sc_door_off;
462 
463 	/* chip specific */
464 	uint16_t		sc_erst_max;
465 	uint16_t		sc_event_idx;
466 	uint16_t		sc_command_idx;
467 
468 	uint8_t			sc_event_ccs;
469 	uint8_t			sc_command_ccs;
470 	/* number of XHCI device slots */
471 	uint8_t			sc_noslot;
472 	/* number of ports on root HUB */
473 	uint8_t			sc_noport;
474 	/* number of scratch pages */
475 	uint8_t			sc_noscratch;
476 	/* root HUB device configuration */
477 	uint8_t			sc_conf;
478 	uint8_t			sc_hub_idata[2];
479 
480 	/* size of context */
481 	uint8_t			sc_ctx_is_64_byte;
482 
483 	/* vendor string for root HUB */
484 	char			sc_vendor[16];
485 };
486 
487 #define	XHCI_CMD_LOCK(sc)	lockmgr(&(sc)->sc_cmd_lock, LK_EXCLUSIVE)
488 #define	XHCI_CMD_UNLOCK(sc)	lockmgr(&(sc)->sc_cmd_lock, LK_RELEASE)
489 #define	XHCI_CMD_ASSERT_LOCKED(sc) KKASSERT(lockstatus(&(sc)->sc_cmd_lock, curthread) == LK_EXCLUSIVE)
490 
491 /* prototypes */
492 
493 usb_error_t xhci_halt_controller(struct xhci_softc *);
494 usb_error_t xhci_init(struct xhci_softc *, device_t);
495 usb_error_t xhci_start_controller(struct xhci_softc *);
496 void	xhci_interrupt(struct xhci_softc *);
497 void	xhci_uninit(struct xhci_softc *);
498 
499 #endif					/* _XHCI_H_ */
500