451 lines
16 KiB
C
451 lines
16 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _EHCI_H_
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#define _EHCI_H_
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#define EHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
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/*
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* Alignment NOTE: structures must be aligned so that the hardware can index
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* without performing addition.
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*/
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#define EHCI_FRAMELIST_ALIGN 0x1000 /* bytes */
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#define EHCI_FRAMELIST_COUNT 1024 /* units */
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#define EHCI_VIRTUAL_FRAMELIST_COUNT 128 /* units */
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#if ((8*EHCI_VIRTUAL_FRAMELIST_COUNT) < USB_MAX_HS_ISOC_FRAMES_PER_XFER)
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#error "maximum number of high-speed isochronous frames is higher than supported!"
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#endif
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#if (EHCI_VIRTUAL_FRAMELIST_COUNT < USB_MAX_FS_ISOC_FRAMES_PER_XFER)
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#error "maximum number of full-speed isochronous frames is higher than supported!"
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#endif
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/* Link types */
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#define EHCI_LINK_TERMINATE 0x00000001
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#define EHCI_LINK_TYPE(x) ((x) & 0x00000006)
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#define EHCI_LINK_ITD 0x0
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#define EHCI_LINK_QH 0x2
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#define EHCI_LINK_SITD 0x4
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#define EHCI_LINK_FSTN 0x6
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#define EHCI_LINK_ADDR(x) ((x) &~ 0x1f)
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/* Structures alignment (bytes) */
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#define EHCI_ITD_ALIGN 128
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#define EHCI_SITD_ALIGN 64
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#define EHCI_QTD_ALIGN 64
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#define EHCI_QH_ALIGN 128
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#define EHCI_FSTN_ALIGN 32
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/* Data buffers are divided into one or more pages */
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#define EHCI_PAGE_SIZE 0x1000
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#if ((USB_PAGE_SIZE < EHCI_PAGE_SIZE) || (EHCI_PAGE_SIZE == 0) || \
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(USB_PAGE_SIZE < EHCI_ITD_ALIGN) || (EHCI_ITD_ALIGN == 0) || \
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(USB_PAGE_SIZE < EHCI_SITD_ALIGN) || (EHCI_SITD_ALIGN == 0) || \
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(USB_PAGE_SIZE < EHCI_QTD_ALIGN) || (EHCI_QTD_ALIGN == 0) || \
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(USB_PAGE_SIZE < EHCI_QH_ALIGN) || (EHCI_QH_ALIGN == 0) || \
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(USB_PAGE_SIZE < EHCI_FSTN_ALIGN) || (EHCI_FSTN_ALIGN == 0))
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#error "Invalid USB page size!"
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#endif
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/*
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* Isochronous Transfer Descriptor. This descriptor is used for high speed
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* transfers only.
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*/
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struct ehci_itd {
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volatile uint32_t itd_next;
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volatile uint32_t itd_status[8];
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#define EHCI_ITD_SET_LEN(x) ((x) << 16)
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#define EHCI_ITD_GET_LEN(x) (((x) >> 16) & 0xFFF)
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#define EHCI_ITD_IOC (1 << 15)
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#define EHCI_ITD_SET_PG(x) ((x) << 12)
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#define EHCI_ITD_GET_PG(x) (((x) >> 12) & 0x7)
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#define EHCI_ITD_SET_OFFS(x) (x)
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#define EHCI_ITD_GET_OFFS(x) (((x) >> 0) & 0xFFF)
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#define EHCI_ITD_ACTIVE (1 << 31)
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#define EHCI_ITD_DATABUFERR (1 << 30)
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#define EHCI_ITD_BABBLE (1 << 29)
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#define EHCI_ITD_XACTERR (1 << 28)
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volatile uint32_t itd_bp[7];
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/* itd_bp[0] */
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#define EHCI_ITD_SET_ADDR(x) (x)
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#define EHCI_ITD_GET_ADDR(x) (((x) >> 0) & 0x7F)
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#define EHCI_ITD_SET_ENDPT(x) ((x) << 8)
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#define EHCI_ITD_GET_ENDPT(x) (((x) >> 8) & 0xF)
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/* itd_bp[1] */
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#define EHCI_ITD_SET_DIR_IN (1 << 11)
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#define EHCI_ITD_SET_DIR_OUT (0 << 11)
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#define EHCI_ITD_SET_MPL(x) (x)
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#define EHCI_ITD_GET_MPL(x) (((x) >> 0) & 0x7FF)
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volatile uint32_t itd_bp_hi[7];
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/*
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* Extra information needed:
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*/
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uint32_t itd_self;
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struct ehci_itd *next;
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struct ehci_itd *prev;
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struct ehci_itd *obj_next;
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struct usb_page_cache *page_cache;
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} __aligned(EHCI_ITD_ALIGN);
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typedef struct ehci_itd ehci_itd_t;
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/*
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* Split Transaction Isochronous Transfer Descriptor. This descriptor is used
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* for full speed transfers only.
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*/
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struct ehci_sitd {
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volatile uint32_t sitd_next;
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volatile uint32_t sitd_portaddr;
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#define EHCI_SITD_SET_DIR_OUT (0 << 31)
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#define EHCI_SITD_SET_DIR_IN (1 << 31)
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#define EHCI_SITD_SET_ADDR(x) (x)
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#define EHCI_SITD_GET_ADDR(x) ((x) & 0x7F)
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#define EHCI_SITD_SET_ENDPT(x) ((x) << 8)
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#define EHCI_SITD_GET_ENDPT(x) (((x) >> 8) & 0xF)
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#define EHCI_SITD_GET_DIR(x) ((x) >> 31)
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#define EHCI_SITD_SET_PORT(x) ((x) << 24)
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#define EHCI_SITD_GET_PORT(x) (((x) >> 24) & 0x7F)
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#define EHCI_SITD_SET_HUBA(x) ((x) << 16)
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#define EHCI_SITD_GET_HUBA(x) (((x) >> 16) & 0x7F)
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volatile uint32_t sitd_mask;
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#define EHCI_SITD_SET_SMASK(x) (x)
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#define EHCI_SITD_SET_CMASK(x) ((x) << 8)
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volatile uint32_t sitd_status;
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#define EHCI_SITD_COMPLETE_SPLIT (1<<1)
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#define EHCI_SITD_START_SPLIT (0<<1)
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#define EHCI_SITD_MISSED_MICRO_FRAME (1<<2)
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#define EHCI_SITD_XACTERR (1<<3)
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#define EHCI_SITD_BABBLE (1<<4)
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#define EHCI_SITD_DATABUFERR (1<<5)
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#define EHCI_SITD_ERROR (1<<6)
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#define EHCI_SITD_ACTIVE (1<<7)
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#define EHCI_SITD_IOC (1<<31)
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#define EHCI_SITD_SET_LEN(len) ((len)<<16)
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#define EHCI_SITD_GET_LEN(x) (((x)>>16) & 0x3FF)
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volatile uint32_t sitd_bp[2];
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volatile uint32_t sitd_back;
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volatile uint32_t sitd_bp_hi[2];
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/*
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* Extra information needed:
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*/
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uint32_t sitd_self;
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struct ehci_sitd *next;
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struct ehci_sitd *prev;
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struct ehci_sitd *obj_next;
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struct usb_page_cache *page_cache;
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} __aligned(EHCI_SITD_ALIGN);
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typedef struct ehci_sitd ehci_sitd_t;
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/* Queue Element Transfer Descriptor */
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struct ehci_qtd {
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volatile uint32_t qtd_next;
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volatile uint32_t qtd_altnext;
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volatile uint32_t qtd_status;
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#define EHCI_QTD_GET_STATUS(x) (((x) >> 0) & 0xff)
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#define EHCI_QTD_SET_STATUS(x) ((x) << 0)
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#define EHCI_QTD_ACTIVE 0x80
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#define EHCI_QTD_HALTED 0x40
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#define EHCI_QTD_BUFERR 0x20
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#define EHCI_QTD_BABBLE 0x10
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#define EHCI_QTD_XACTERR 0x08
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#define EHCI_QTD_MISSEDMICRO 0x04
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#define EHCI_QTD_SPLITXSTATE 0x02
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#define EHCI_QTD_PINGSTATE 0x01
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#define EHCI_QTD_STATERRS 0x74
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#define EHCI_QTD_GET_PID(x) (((x) >> 8) & 0x3)
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#define EHCI_QTD_SET_PID(x) ((x) << 8)
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#define EHCI_QTD_PID_OUT 0x0
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#define EHCI_QTD_PID_IN 0x1
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#define EHCI_QTD_PID_SETUP 0x2
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#define EHCI_QTD_GET_CERR(x) (((x) >> 10) & 0x3)
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#define EHCI_QTD_SET_CERR(x) ((x) << 10)
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#define EHCI_QTD_GET_C_PAGE(x) (((x) >> 12) & 0x7)
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#define EHCI_QTD_SET_C_PAGE(x) ((x) << 12)
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#define EHCI_QTD_GET_IOC(x) (((x) >> 15) & 0x1)
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#define EHCI_QTD_IOC 0x00008000
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#define EHCI_QTD_GET_BYTES(x) (((x) >> 16) & 0x7fff)
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#define EHCI_QTD_SET_BYTES(x) ((x) << 16)
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#define EHCI_QTD_GET_TOGGLE(x) (((x) >> 31) & 0x1)
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#define EHCI_QTD_SET_TOGGLE(x) ((x) << 31)
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#define EHCI_QTD_TOGGLE_MASK 0x80000000
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#define EHCI_QTD_NBUFFERS 5
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#define EHCI_QTD_PAYLOAD_MAX ((EHCI_QTD_NBUFFERS-1)*EHCI_PAGE_SIZE)
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volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
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volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
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/*
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* Extra information needed:
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*/
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struct ehci_qtd *alt_next;
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struct ehci_qtd *obj_next;
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struct usb_page_cache *page_cache;
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uint32_t qtd_self;
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uint16_t len;
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} __aligned(EHCI_QTD_ALIGN);
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typedef struct ehci_qtd ehci_qtd_t;
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/* Queue Head Sub Structure */
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struct ehci_qh_sub {
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volatile uint32_t qtd_next;
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volatile uint32_t qtd_altnext;
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volatile uint32_t qtd_status;
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volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
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volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
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} __aligned(4);
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/* Queue Head */
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struct ehci_qh {
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volatile uint32_t qh_link;
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volatile uint32_t qh_endp;
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#define EHCI_QH_GET_ADDR(x) (((x) >> 0) & 0x7f) /* endpoint addr */
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#define EHCI_QH_SET_ADDR(x) (x)
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#define EHCI_QH_ADDRMASK 0x0000007f
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#define EHCI_QH_GET_INACT(x) (((x) >> 7) & 0x01) /* inactivate on next */
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#define EHCI_QH_INACT 0x00000080
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#define EHCI_QH_GET_ENDPT(x) (((x) >> 8) & 0x0f) /* endpoint no */
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#define EHCI_QH_SET_ENDPT(x) ((x) << 8)
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#define EHCI_QH_GET_EPS(x) (((x) >> 12) & 0x03) /* endpoint speed */
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#define EHCI_QH_SET_EPS(x) ((x) << 12)
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#define EHCI_QH_SPEED_FULL 0x0
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#define EHCI_QH_SPEED_LOW 0x1
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#define EHCI_QH_SPEED_HIGH 0x2
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#define EHCI_QH_GET_DTC(x) (((x) >> 14) & 0x01) /* data toggle control */
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#define EHCI_QH_DTC 0x00004000
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#define EHCI_QH_GET_HRECL(x) (((x) >> 15) & 0x01) /* head of reclamation */
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#define EHCI_QH_HRECL 0x00008000
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#define EHCI_QH_GET_MPL(x) (((x) >> 16) & 0x7ff) /* max packet len */
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#define EHCI_QH_SET_MPL(x) ((x) << 16)
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#define EHCI_QH_MPLMASK 0x07ff0000
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#define EHCI_QH_GET_CTL(x) (((x) >> 27) & 0x01) /* control endpoint */
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#define EHCI_QH_CTL 0x08000000
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#define EHCI_QH_GET_NRL(x) (((x) >> 28) & 0x0f) /* NAK reload */
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#define EHCI_QH_SET_NRL(x) ((x) << 28)
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volatile uint32_t qh_endphub;
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#define EHCI_QH_GET_SMASK(x) (((x) >> 0) & 0xff) /* intr sched mask */
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#define EHCI_QH_SET_SMASK(x) ((x) << 0)
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#define EHCI_QH_GET_CMASK(x) (((x) >> 8) & 0xff) /* split completion mask */
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#define EHCI_QH_SET_CMASK(x) ((x) << 8)
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#define EHCI_QH_GET_HUBA(x) (((x) >> 16) & 0x7f) /* hub address */
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#define EHCI_QH_SET_HUBA(x) ((x) << 16)
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#define EHCI_QH_GET_PORT(x) (((x) >> 23) & 0x7f) /* hub port */
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#define EHCI_QH_SET_PORT(x) ((x) << 23)
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#define EHCI_QH_GET_MULT(x) (((x) >> 30) & 0x03) /* pipe multiplier */
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#define EHCI_QH_SET_MULT(x) ((x) << 30)
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volatile uint32_t qh_curqtd;
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struct ehci_qh_sub qh_qtd;
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/*
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* Extra information needed:
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*/
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struct ehci_qh *next;
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struct ehci_qh *prev;
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struct ehci_qh *obj_next;
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struct usb_page_cache *page_cache;
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uint32_t qh_self;
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} __aligned(EHCI_QH_ALIGN);
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typedef struct ehci_qh ehci_qh_t;
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/* Periodic Frame Span Traversal Node */
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struct ehci_fstn {
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volatile uint32_t fstn_link;
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volatile uint32_t fstn_back;
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} __aligned(EHCI_FSTN_ALIGN);
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typedef struct ehci_fstn ehci_fstn_t;
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struct ehci_hw_softc {
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struct usb_page_cache pframes_pc;
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struct usb_page_cache terminate_pc;
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struct usb_page_cache async_start_pc;
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struct usb_page_cache intr_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct usb_page_cache isoc_hs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct usb_page_cache isoc_fs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct usb_page pframes_pg;
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struct usb_page terminate_pg;
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struct usb_page async_start_pg;
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struct usb_page intr_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct usb_page isoc_hs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct usb_page isoc_fs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
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};
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struct ehci_config_desc {
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struct usb_config_descriptor confd;
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struct usb_interface_descriptor ifcd;
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struct usb_endpoint_descriptor endpd;
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} __packed;
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union ehci_hub_desc {
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struct usb_status stat;
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struct usb_port_status ps;
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struct usb_hub_descriptor hubd;
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uint8_t temp[128];
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};
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typedef struct ehci_softc {
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struct ehci_hw_softc sc_hw;
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struct usb_bus sc_bus; /* base device */
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struct usb_callout sc_tmo_pcd;
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struct usb_callout sc_tmo_poll;
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union ehci_hub_desc sc_hub_desc;
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struct usb_device *sc_devices[EHCI_MAX_DEVICES];
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struct resource *sc_io_res;
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struct resource *sc_irq_res;
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struct ehci_qh *sc_async_p_last;
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struct ehci_qh *sc_intr_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct ehci_sitd *sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
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struct ehci_itd *sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
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void *sc_intr_hdl;
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bus_size_t sc_io_size;
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bus_space_tag_t sc_io_tag;
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bus_space_handle_t sc_io_hdl;
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uint32_t sc_terminate_self; /* TD short packet termination pointer */
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uint32_t sc_eintrs;
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uint16_t sc_intr_stat[EHCI_VIRTUAL_FRAMELIST_COUNT];
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uint16_t sc_id_vendor; /* vendor ID for root hub */
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uint16_t sc_flags; /* chip specific flags */
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#define EHCI_SCFLG_SETMODE 0x0001 /* set bridge mode again after init */
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#define EHCI_SCFLG_FORCESPEED 0x0002 /* force speed */
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#define EHCI_SCFLG_NORESTERM 0x0004 /* don't terminate reset sequence */
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#define EHCI_SCFLG_BIGEDESC 0x0008 /* big-endian byte order descriptors */
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#define EHCI_SCFLG_BIGEMMIO 0x0010 /* big-endian byte order MMIO */
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#define EHCI_SCFLG_TT 0x0020 /* transaction translator present */
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#define EHCI_SCFLG_LOSTINTRBUG 0x0040 /* workaround for VIA / ATI chipsets */
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#define EHCI_SCFLG_IAADBUG 0x0080 /* workaround for nVidia chipsets */
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#define EHCI_SCFLG_DONTRESET 0x0100 /* don't reset ctrl. in ehci_init() */
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#define EHCI_SCFLG_DONEINIT 0x1000 /* ehci_init() has been called. */
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uint8_t sc_offs; /* offset to operational registers */
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uint8_t sc_doorbell_disable; /* set on doorbell failure */
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uint8_t sc_noport;
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uint8_t sc_addr; /* device address */
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uint8_t sc_conf; /* device configuration */
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uint8_t sc_isreset;
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uint8_t sc_hub_idata[8];
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char sc_vendor[16]; /* vendor string for root hub */
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} ehci_softc_t;
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#define EREAD1(sc, a) bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
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#define EREAD2(sc, a) bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
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#define EREAD4(sc, a) bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
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#define EWRITE1(sc, a, x) \
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bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
|
|
#define EWRITE2(sc, a, x) \
|
|
bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
|
|
#define EWRITE4(sc, a, x) \
|
|
bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
|
|
#define EOREAD1(sc, a) \
|
|
bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
|
|
#define EOREAD2(sc, a) \
|
|
bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
|
|
#define EOREAD4(sc, a) \
|
|
bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
|
|
#define EOWRITE1(sc, a, x) \
|
|
bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
|
|
#define EOWRITE2(sc, a, x) \
|
|
bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
|
|
#define EOWRITE4(sc, a, x) \
|
|
bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
|
|
|
|
#ifdef USB_EHCI_BIG_ENDIAN_DESC
|
|
/*
|
|
* Handle byte order conversion between host and ``host controller''.
|
|
* Typically the latter is little-endian but some controllers require
|
|
* big-endian in which case we may need to manually swap.
|
|
*/
|
|
static __inline uint32_t
|
|
htohc32(const struct ehci_softc *sc, const uint32_t v)
|
|
{
|
|
return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe32(v) : htole32(v);
|
|
}
|
|
|
|
static __inline uint16_t
|
|
htohc16(const struct ehci_softc *sc, const uint16_t v)
|
|
{
|
|
return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe16(v) : htole16(v);
|
|
}
|
|
|
|
static __inline uint32_t
|
|
hc32toh(const struct ehci_softc *sc, const uint32_t v)
|
|
{
|
|
return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be32toh(v) : le32toh(v);
|
|
}
|
|
|
|
static __inline uint16_t
|
|
hc16toh(const struct ehci_softc *sc, const uint16_t v)
|
|
{
|
|
return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be16toh(v) : le16toh(v);
|
|
}
|
|
#else
|
|
/*
|
|
* Normal little-endian only conversion routines.
|
|
*/
|
|
static __inline uint32_t
|
|
htohc32(const struct ehci_softc *sc, const uint32_t v)
|
|
{
|
|
return htole32(v);
|
|
}
|
|
|
|
static __inline uint16_t
|
|
htohc16(const struct ehci_softc *sc, const uint16_t v)
|
|
{
|
|
return htole16(v);
|
|
}
|
|
|
|
static __inline uint32_t
|
|
hc32toh(const struct ehci_softc *sc, const uint32_t v)
|
|
{
|
|
return le32toh(v);
|
|
}
|
|
|
|
static __inline uint16_t
|
|
hc16toh(const struct ehci_softc *sc, const uint16_t v)
|
|
{
|
|
return le16toh(v);
|
|
}
|
|
#endif
|
|
|
|
usb_bus_mem_cb_t ehci_iterate_hw_softc;
|
|
|
|
usb_error_t ehci_reset(ehci_softc_t *sc);
|
|
usb_error_t ehci_init(ehci_softc_t *sc);
|
|
void ehci_detach(struct ehci_softc *sc);
|
|
void ehci_interrupt(ehci_softc_t *sc);
|
|
|
|
#endif /* _EHCI_H_ */
|