1 /*        $NetBSD: uhcireg.h,v 1.22 2016/04/23 10:15:32 skrll Exp $   */
2 /*        $FreeBSD: src/sys/dev/usb/uhcireg.h,v 1.12 1999/11/17 22:33:42 n_hibma Exp $ */
3 
4 /*
5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Lennart Augustsson (lennart@augustsson.net) at
10  * Carlstedt Research & Technology.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _DEV_USB_UHCIREG_H_
35 #define _DEV_USB_UHCIREG_H_
36 
37 /*** PCI config registers ***/
38 
39 #define PCI_USBREV            0x60      /* USB protocol revision */
40 #define  PCI_USBREV_MASK      0xff
41 #define  PCI_USBREV_PRE_1_0   0x00
42 #define  PCI_USBREV_1_0                 0x10
43 #define  PCI_USBREV_1_1                 0x11
44 
45 #define PCI_LEGSUP            0xc0      /* Legacy Support register */
46 #define  PCI_LEGSUP_A20PTS    __BIT(15) /* End of A20GATE passthru status */
47 #define  PCI_LEGSUP_USBPIRQDEN          __BIT(13) /* USB PIRQ D Enable */
48 #define  PCI_LEGSUP_USBIRQS   __BIT(12) /* USB IRQ status */
49 #define  PCI_LEGSUP_TBY64W    __BIT(11) /* Trap by 64h write status */
50 #define  PCI_LEGSUP_TBY64R    __BIT(10) /* Trap by 64h read status */
51 #define  PCI_LEGSUP_TBY60W    __BIT(9)  /* Trap by 60h write status */
52 #define  PCI_LEGSUP_TBY60R    __BIT(8)  /* Trap by 60h read status */
53 #define  PCI_LEGSUP_SMIEPTE   __BIT(7)  /* SMI at end of passthru enable */
54 #define  PCI_LEGSUP_PSS                 __BIT(6)  /* Passthru status */
55 #define  PCI_LEGSUP_A20PTEN   __BIT(5)  /* A20GATE passthru enable */
56 #define  PCI_LEGSUP_USBSMIEN  __BIT(4)  /* Enable SMI# generation */
57 
58 #define PCI_CBIO              0x20      /* configuration base IO */
59 
60 #define PCI_INTERFACE_UHCI    0x00
61 
62 /*** UHCI registers ***/
63 
64 #define UHCI_CMD              0x00
65 #define  UHCI_CMD_RS                    __BIT(0)
66 #define  UHCI_CMD_HCRESET     __BIT(1)
67 #define  UHCI_CMD_GRESET      __BIT(2)
68 #define  UHCI_CMD_EGSM                  __BIT(3)
69 #define  UHCI_CMD_FGR                   __BIT(4)
70 #define  UHCI_CMD_SWDBG                 __BIT(5)
71 #define  UHCI_CMD_CF                    __BIT(6)
72 #define  UHCI_CMD_MAXP                  __BIT(7)
73 
74 #define UHCI_STS              0x02
75 #define  UHCI_STS_USBINT      __BIT(0)
76 #define  UHCI_STS_USBEI                 __BIT(1)
77 #define  UHCI_STS_RD                    __BIT(2)
78 #define  UHCI_STS_HSE                   __BIT(3)
79 #define  UHCI_STS_HCPE                  __BIT(4)
80 #define  UHCI_STS_HCH                   __BIT(5)
81 #define  UHCI_STS_ALLINTRS    __BITS(5,0)
82 
83 #define UHCI_INTR             0x04
84 #define  UHCI_INTR_TOCRCIE    __BIT(0)
85 #define  UHCI_INTR_RIE                  __BIT(1)
86 #define  UHCI_INTR_IOCE                 __BIT(2)
87 #define  UHCI_INTR_SPIE                 __BIT(3)
88 
89 #define UHCI_FRNUM            0x06
90 #define  UHCI_FRNUM_MASK      __BITS(9,0)
91 
92 
93 #define UHCI_FLBASEADDR                 0x08
94 
95 #define UHCI_SOF              0x0c
96 #define  UHCI_SOF_MASK                  __BITS(6,0)
97 
98 #define UHCI_PORTSC1                    0x010
99 #define UHCI_PORTSC2                    0x012
100 #define UHCI_PORTSC_CCS                 __BIT(0)
101 #define UHCI_PORTSC_CSC                 __BIT(1)
102 #define UHCI_PORTSC_PE                  __BIT(2)
103 #define UHCI_PORTSC_POEDC     __BIT(3)
104 #define UHCI_PORTSC_LS_MASK   __BITS(5,4)
105 #define UHCI_PORTSC_GET_LS(p) __SHIFTOUT((p), UHCI_PORTSC_LS_MASK)
106 #define UHCI_PORTSC_RD                  __BIT(6)
107 #define UHCI_PORTSC_LSDA      __BIT(8)
108 #define UHCI_PORTSC_PR                  __BIT(9)
109 #define UHCI_PORTSC_OCI                 __BIT(10)
110 #define UHCI_PORTSC_OCIC      __BIT(11)
111 #define UHCI_PORTSC_SUSP      __BIT(12)
112 
113 #define URWMASK(x) \
114   ((x) & (UHCI_PORTSC_SUSP | UHCI_PORTSC_PR | UHCI_PORTSC_RD | UHCI_PORTSC_PE))
115 
116 #define UHCI_FRAMELIST_COUNT  1024
117 #define UHCI_FRAMELIST_ALIGN  4096
118 
119 #define UHCI_TD_ALIGN                   16
120 #define UHCI_QH_ALIGN                   16
121 
122 typedef uint32_t uhci_physaddr_t;
123 #define UHCI_PTR_T            __BIT(0)
124 #define UHCI_PTR_TD           0x00000000
125 #define UHCI_PTR_QH           __BIT(1)
126 #define UHCI_PTR_VF           __BIT(2)
127 
128 /*
129  * Wait this long after a QH has been removed.  This gives that HC a
130  * chance to stop looking at it before it's recycled.
131  */
132 #define UHCI_QH_REMOVE_DELAY  5
133 
134 /*
135  * The Queue Heads and Transfer Descriptors are accessed
136  * by both the CPU and the USB controller which run
137  * concurrently.  This means that they have to be accessed
138  * with great care.  As long as the data structures are
139  * not linked into the controller's frame list they cannot
140  * be accessed by it and anything goes.  As soon as a
141  * TD is accessible by the controller it "owns" the td_status
142  * field; it will not be written by the CPU.  Similarly
143  * the controller "owns" the qh_elink field.
144  */
145 
146 typedef struct {
147           volatile uhci_physaddr_t td_link;
148           volatile uint32_t td_status;
149 #define UHCI_TD_ACTLEN_MASK   __BITS(10,0)
150 #define UHCI_TD_GET_ACTLEN(s) \
151     ((__SHIFTOUT((s), UHCI_TD_ACTLEN_MASK) + 1) & __SHIFTOUT_MASK(UHCI_TD_ACTLEN_MASK))
152 #define UHCI_TD_ZERO_ACTLEN(t)          ((t) | 0x3ff)
153 #define UHCI_TD_BITSTUFF      __BIT(17)
154 #define UHCI_TD_CRCTO                   __BIT(18)
155 #define UHCI_TD_NAK           __BIT(19)
156 #define UHCI_TD_BABBLE                  __BIT(20)
157 #define UHCI_TD_DBUFFER                 __BIT(21)
158 #define UHCI_TD_STALLED                 __BIT(22)
159 #define UHCI_TD_ACTIVE                  __BIT(23)
160 #define UHCI_TD_STATUS_MASK   __BITS(16,23)
161 #define UHCI_TD_IOC           __BIT(24)
162 #define UHCI_TD_IOS           __BIT(25)
163 #define UHCI_TD_LS            __BIT(26)
164 #define UHCI_TD_ERRCNT_MASK   __BITS(28,27)
165 #define UHCI_TD_GET_ERRCNT(s) __SHIFTOUT((s), UHCI_TD_ERRCNT_MASK)
166 #define UHCI_TD_SET_ERRCNT(n) __SHIFTIN((n), UHCI_TD_ERRCNT_MASK)
167 #define UHCI_TD_SPD           __BIT(29)
168           volatile uint32_t td_token;
169 #define UHCI_TD_PID_IN                  0x69
170 #define UHCI_TD_PID_OUT                 0xe1
171 #define UHCI_TD_PID_SETUP     0x2d
172 #define UHCI_TD_PID_MASK      __BITS(7,0)
173 #define UHCI_TD_SET_PID(p)    __SHIFTIN((p), UHCI_TD_PID_MASK)
174 #define UHCI_TD_GET_PID(s)    __SHIFTOUT((s), UHCI_TD_PID_MASK)
175 #define UHCI_TD_DEVADDR_MASK  __BITS(14,8)
176 #define UHCI_TD_SET_DEVADDR(a)          __SHIFTIN((a), UHCI_TD_DEVADDR_MASK)
177 #define UHCI_TD_GET_DEVADDR(s)          __SHIFTOUT((s), UHCI_TD_DEVADDR_MASK)
178 #define UHCI_TD_ENDPT_MASK    __BITS(18,15)
179 #define UHCI_TD_SET_ENDPT(e)  __SHIFTIN((e), UHCI_TD_ENDPT_MASK)
180 #define UHCI_TD_GET_ENDPT(s)  __SHIFTOUT((s), UHCI_TD_ENDPT_MASK)
181 #define UHCI_TD_DT_MASK                 __BIT(19)
182 #define UHCI_TD_SET_DT(t)     __SHIFTIN((t), UHCI_TD_DT_MASK)
183 #define UHCI_TD_GET_DT(s)     __SHIFTOUT((s), UHCI_TD_DT_MASK)
184 #define UHCI_TD_MAXLEN_MASK   __BITS(31,21)
185 #define UHCI_TD_SET_MAXLEN(l) \
186     __SHIFTIN((((l)-1) & __SHIFTOUT_MASK(UHCI_TD_MAXLEN_MASK)), UHCI_TD_MAXLEN_MASK)
187 #define UHCI_TD_GET_MAXLEN(s) \
188     (__SHIFTOUT((s), UHCI_TD_MAXLEN_MASK) + 1)
189           volatile uint32_t td_buffer;
190 } uhci_td_t;
191 
192 #define UHCI_TD_ERROR \
193     (UHCI_TD_BITSTUFF|UHCI_TD_CRCTO|UHCI_TD_BABBLE|UHCI_TD_DBUFFER|UHCI_TD_STALLED)
194 
195 #define UHCI_TD_SETUP(len, endp, dev) \
196     (UHCI_TD_SET_MAXLEN(len) | UHCI_TD_SET_ENDPT(endp) | \
197     UHCI_TD_SET_DEVADDR(dev) | UHCI_TD_PID_SETUP)
198 #define UHCI_TD_OUT(len, endp, dev, dt) \
199     (UHCI_TD_SET_MAXLEN(len) | UHCI_TD_SET_ENDPT(endp) | \
200     UHCI_TD_SET_DEVADDR(dev) | UHCI_TD_PID_OUT | UHCI_TD_SET_DT(dt))
201 #define UHCI_TD_IN(len, endp, dev, dt) \
202     (UHCI_TD_SET_MAXLEN(len) | UHCI_TD_SET_ENDPT(endp) | \
203     UHCI_TD_SET_DEVADDR(dev) | UHCI_TD_PID_IN | UHCI_TD_SET_DT(dt))
204 
205 typedef struct {
206           volatile uhci_physaddr_t qh_hlink;
207           volatile uhci_physaddr_t qh_elink;
208 } uhci_qh_t;
209 
210 #endif /* _DEV_USB_UHCIREG_H_ */
211