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      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 (at) 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