2e14174893
This patch should remove the need for kldunload of USB controller drivers at suspend and kldload of USB controller drivers at resume. This patch also fixes some build issues in avr32dci.c MFC after: 2 weeks
250 lines
8.0 KiB
C
250 lines
8.0 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 1998 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) at
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* Carlstedt Research & Technology.
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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 _UHCI_H_
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#define _UHCI_H_
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#define UHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
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#define UHCI_FRAMELIST_COUNT 1024 /* units */
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#define UHCI_FRAMELIST_ALIGN 4096 /* bytes */
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/* Structures alignment (bytes) */
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#define UHCI_TD_ALIGN 16
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#define UHCI_QH_ALIGN 16
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#if ((USB_PAGE_SIZE < UHCI_TD_ALIGN) || (UHCI_TD_ALIGN == 0) || \
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(USB_PAGE_SIZE < UHCI_QH_ALIGN) || (UHCI_QH_ALIGN == 0))
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#error "Invalid USB page size!"
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#endif
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typedef uint32_t uhci_physaddr_t;
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#define UHCI_PTR_T 0x00000001
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#define UHCI_PTR_TD 0x00000000
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#define UHCI_PTR_QH 0x00000002
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#define UHCI_PTR_VF 0x00000004
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/*
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* The Queue Heads (QH) and Transfer Descriptors (TD) are accessed by
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* both the CPU and the USB-controller which run concurrently. Great
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* care must be taken. When the data-structures are linked into the
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* USB controller's frame list, the USB-controller "owns" the
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* td_status and qh_elink fields, which will not be written by the
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* CPU.
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*
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*/
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struct uhci_td {
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/*
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* Data used by the UHCI controller.
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* volatile is used in order to mantain struct members ordering.
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*/
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volatile uint32_t td_next;
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volatile uint32_t td_status;
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#define UHCI_TD_GET_ACTLEN(s) (((s) + 1) & 0x3ff)
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#define UHCI_TD_ZERO_ACTLEN(t) ((t) | 0x3ff)
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#define UHCI_TD_BITSTUFF 0x00020000
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#define UHCI_TD_CRCTO 0x00040000
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#define UHCI_TD_NAK 0x00080000
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#define UHCI_TD_BABBLE 0x00100000
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#define UHCI_TD_DBUFFER 0x00200000
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#define UHCI_TD_STALLED 0x00400000
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#define UHCI_TD_ACTIVE 0x00800000
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#define UHCI_TD_IOC 0x01000000
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#define UHCI_TD_IOS 0x02000000
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#define UHCI_TD_LS 0x04000000
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#define UHCI_TD_GET_ERRCNT(s) (((s) >> 27) & 3)
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#define UHCI_TD_SET_ERRCNT(n) ((n) << 27)
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#define UHCI_TD_SPD 0x20000000
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volatile uint32_t td_token;
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#define UHCI_TD_PID 0x000000ff
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#define UHCI_TD_PID_IN 0x00000069
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#define UHCI_TD_PID_OUT 0x000000e1
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#define UHCI_TD_PID_SETUP 0x0000002d
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#define UHCI_TD_GET_PID(s) ((s) & 0xff)
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#define UHCI_TD_SET_DEVADDR(a) ((a) << 8)
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#define UHCI_TD_GET_DEVADDR(s) (((s) >> 8) & 0x7f)
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#define UHCI_TD_SET_ENDPT(e) (((e) & 0xf) << 15)
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#define UHCI_TD_GET_ENDPT(s) (((s) >> 15) & 0xf)
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#define UHCI_TD_SET_DT(t) ((t) << 19)
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#define UHCI_TD_GET_DT(s) (((s) >> 19) & 1)
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#define UHCI_TD_SET_MAXLEN(l) (((l)-1) << 21)
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#define UHCI_TD_GET_MAXLEN(s) ((((s) >> 21) + 1) & 0x7ff)
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#define UHCI_TD_MAXLEN_MASK 0xffe00000
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volatile uint32_t td_buffer;
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/*
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* Extra information needed:
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*/
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struct uhci_td *next;
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struct uhci_td *prev;
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struct uhci_td *obj_next;
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struct usb_page_cache *page_cache;
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struct usb_page_cache *fix_pc;
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uint32_t td_self;
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uint16_t len;
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} __aligned(UHCI_TD_ALIGN);
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typedef struct uhci_td uhci_td_t;
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#define UHCI_TD_ERROR (UHCI_TD_BITSTUFF | UHCI_TD_CRCTO | \
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UHCI_TD_BABBLE | UHCI_TD_DBUFFER | UHCI_TD_STALLED)
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#define UHCI_TD_SETUP(len, endp, dev) (UHCI_TD_SET_MAXLEN(len) | \
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UHCI_TD_SET_ENDPT(endp) | \
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UHCI_TD_SET_DEVADDR(dev) | \
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UHCI_TD_PID_SETUP)
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#define UHCI_TD_OUT(len, endp, dev, dt) (UHCI_TD_SET_MAXLEN(len) | \
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UHCI_TD_SET_ENDPT(endp) | \
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UHCI_TD_SET_DEVADDR(dev) | \
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UHCI_TD_PID_OUT | UHCI_TD_SET_DT(dt))
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#define UHCI_TD_IN(len, endp, dev, dt) (UHCI_TD_SET_MAXLEN(len) | \
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UHCI_TD_SET_ENDPT(endp) | \
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UHCI_TD_SET_DEVADDR(dev) | \
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UHCI_TD_PID_IN | UHCI_TD_SET_DT(dt))
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struct uhci_qh {
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/*
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* Data used by the UHCI controller.
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*/
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volatile uint32_t qh_h_next;
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volatile uint32_t qh_e_next;
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/*
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* Extra information needed:
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*/
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struct uhci_qh *h_next;
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struct uhci_qh *h_prev;
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struct uhci_qh *obj_next;
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struct uhci_td *e_next;
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struct usb_page_cache *page_cache;
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uint32_t qh_self;
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uint16_t intr_pos;
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} __aligned(UHCI_QH_ALIGN);
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typedef struct uhci_qh uhci_qh_t;
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/* Maximum number of isochronous TD's and QH's interrupt */
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#define UHCI_VFRAMELIST_COUNT 128
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#define UHCI_IFRAMELIST_COUNT (2 * UHCI_VFRAMELIST_COUNT)
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#if (((UHCI_VFRAMELIST_COUNT & (UHCI_VFRAMELIST_COUNT-1)) != 0) || \
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(UHCI_VFRAMELIST_COUNT > UHCI_FRAMELIST_COUNT))
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#error "UHCI_VFRAMELIST_COUNT is not power of two"
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#error "or UHCI_VFRAMELIST_COUNT > UHCI_FRAMELIST_COUNT"
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#endif
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#if (UHCI_VFRAMELIST_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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struct uhci_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 uhci_hub_desc {
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struct usb_status stat;
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struct usb_port_status ps;
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uint8_t temp[128];
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};
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struct uhci_hw_softc {
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struct usb_page_cache pframes_pc;
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struct usb_page_cache isoc_start_pc[UHCI_VFRAMELIST_COUNT];
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struct usb_page_cache intr_start_pc[UHCI_IFRAMELIST_COUNT];
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struct usb_page_cache ls_ctl_start_pc;
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struct usb_page_cache fs_ctl_start_pc;
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struct usb_page_cache bulk_start_pc;
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struct usb_page_cache last_qh_pc;
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struct usb_page_cache last_td_pc;
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struct usb_page pframes_pg;
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struct usb_page isoc_start_pg[UHCI_VFRAMELIST_COUNT];
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struct usb_page intr_start_pg[UHCI_IFRAMELIST_COUNT];
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struct usb_page ls_ctl_start_pg;
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struct usb_page fs_ctl_start_pg;
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struct usb_page bulk_start_pg;
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struct usb_page last_qh_pg;
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struct usb_page last_td_pg;
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};
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typedef struct uhci_softc {
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struct uhci_hw_softc sc_hw;
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struct usb_bus sc_bus; /* base device */
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union uhci_hub_desc sc_hub_desc;
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struct usb_callout sc_root_intr;
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struct usb_device *sc_devices[UHCI_MAX_DEVICES];
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/* pointer to last TD for isochronous */
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struct uhci_td *sc_isoc_p_last[UHCI_VFRAMELIST_COUNT];
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/* pointer to last QH for interrupt */
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struct uhci_qh *sc_intr_p_last[UHCI_IFRAMELIST_COUNT];
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/* pointer to last QH for low speed control */
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struct uhci_qh *sc_ls_ctl_p_last;
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/* pointer to last QH for full speed control */
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struct uhci_qh *sc_fs_ctl_p_last;
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/* pointer to last QH for bulk */
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struct uhci_qh *sc_bulk_p_last;
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struct uhci_qh *sc_reclaim_qh_p;
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struct uhci_qh *sc_last_qh_p;
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struct uhci_td *sc_last_td_p;
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struct resource *sc_io_res;
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struct resource *sc_irq_res;
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void *sc_intr_hdl;
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device_t sc_dev;
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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_loops; /* number of QHs that wants looping */
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uint16_t sc_intr_stat[UHCI_IFRAMELIST_COUNT];
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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; /* bits set if a root hub is reset */
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uint8_t sc_isresumed; /* bits set if a port was resumed */
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uint8_t sc_hub_idata[1];
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char sc_vendor[16]; /* vendor string for root hub */
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} uhci_softc_t;
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usb_bus_mem_cb_t uhci_iterate_hw_softc;
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usb_error_t uhci_init(uhci_softc_t *sc);
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void uhci_reset(uhci_softc_t *sc);
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void uhci_interrupt(uhci_softc_t *sc);
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#endif /* _UHCI_H_ */
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