bcbe578a6a
long as I remember, and completely superseded by better maintained umass(4). It's main idea was to optionally avoid CAM dependency for such devices, but with move ATA to CAM, it is not actual any more. No objections: hselasky@, thompsa@, arch@
1146 lines
31 KiB
C
1146 lines
31 KiB
C
/*-
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* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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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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* without modification, immediately at the beginning of the file.
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ata.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ata.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/endian.h>
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#include <sys/ctype.h>
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#include <sys/conf.h>
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#include <sys/bus.h>
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#include <sys/bio.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/ata/ata-all.h>
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#include <ata_if.h>
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/* device structure */
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static d_ioctl_t ata_ioctl;
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static struct cdevsw ata_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
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.d_ioctl = ata_ioctl,
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.d_name = "ata",
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};
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/* prototypes */
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static void ata_boot_attach(void);
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static device_t ata_add_child(device_t, struct ata_device *, int);
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static void ata_conn_event(void *, int);
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static void bswap(int8_t *, int);
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static void btrim(int8_t *, int);
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static void bpack(int8_t *, int8_t *, int);
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/* global vars */
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MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
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int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
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struct intr_config_hook *ata_delayed_attach = NULL;
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devclass_t ata_devclass;
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uma_zone_t ata_request_zone;
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uma_zone_t ata_composite_zone;
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int ata_wc = 1;
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int ata_setmax = 0;
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int ata_dma_check_80pin = 1;
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/* local vars */
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static int ata_dma = 1;
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static int atapi_dma = 1;
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/* sysctl vars */
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SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
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TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
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SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
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"ATA disk DMA mode control");
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TUNABLE_INT("hw.ata.ata_dma_check_80pin", &ata_dma_check_80pin);
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SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
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CTLFLAG_RDTUN, &ata_dma_check_80pin, 1,
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"Check for 80pin cable before setting ATA DMA mode");
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TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
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SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
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"ATAPI device DMA mode control");
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TUNABLE_INT("hw.ata.wc", &ata_wc);
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SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
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"ATA disk write caching");
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TUNABLE_INT("hw.ata.setmax", &ata_setmax);
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SYSCTL_INT(_hw_ata, OID_AUTO, setmax, CTLFLAG_RDTUN, &ata_setmax, 0,
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"ATA disk set max native address");
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/*
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* newbus device interface related functions
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*/
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int
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ata_probe(device_t dev)
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{
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return 0;
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}
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int
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ata_attach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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int error, rid;
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/* check that we have a virgin channel to attach */
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if (ch->r_irq)
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return EEXIST;
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/* initialize the softc basics */
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ch->dev = dev;
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ch->state = ATA_IDLE;
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bzero(&ch->state_mtx, sizeof(struct mtx));
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mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
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bzero(&ch->queue_mtx, sizeof(struct mtx));
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mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
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TAILQ_INIT(&ch->ata_queue);
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TASK_INIT(&ch->conntask, 0, ata_conn_event, dev);
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/* reset the controller HW, the channel and device(s) */
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while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
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pause("ataatch", 1);
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ATA_RESET(dev);
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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/* allocate DMA resources if DMA HW present*/
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if (ch->dma.alloc)
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ch->dma.alloc(dev);
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/* setup interrupt delivery */
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rid = ATA_IRQ_RID;
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ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
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RF_SHAREABLE | RF_ACTIVE);
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if (!ch->r_irq) {
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device_printf(dev, "unable to allocate interrupt\n");
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return ENXIO;
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}
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if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
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ata_interrupt, ch, &ch->ih))) {
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device_printf(dev, "unable to setup interrupt\n");
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return error;
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}
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/* probe and attach devices on this channel unless we are in early boot */
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if (!ata_delayed_attach)
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ata_identify(dev);
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return 0;
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}
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int
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ata_detach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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device_t *children;
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int nchildren, i;
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/* check that we have a valid channel to detach */
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if (!ch->r_irq)
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return ENXIO;
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/* grap the channel lock so no new requests gets launched */
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mtx_lock(&ch->state_mtx);
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ch->state |= ATA_STALL_QUEUE;
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mtx_unlock(&ch->state_mtx);
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/* detach & delete all children */
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if (!device_get_children(dev, &children, &nchildren)) {
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for (i = 0; i < nchildren; i++)
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if (children[i])
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device_delete_child(dev, children[i]);
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free(children, M_TEMP);
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}
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taskqueue_drain(taskqueue_thread, &ch->conntask);
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/* release resources */
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bus_teardown_intr(dev, ch->r_irq, ch->ih);
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bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
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ch->r_irq = NULL;
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/* free DMA resources if DMA HW present*/
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if (ch->dma.free)
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ch->dma.free(dev);
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mtx_destroy(&ch->state_mtx);
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mtx_destroy(&ch->queue_mtx);
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return 0;
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}
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static void
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ata_conn_event(void *context, int dummy)
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{
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device_t dev = (device_t)context;
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ata_reinit(dev);
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}
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int
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ata_reinit(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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struct ata_request *request;
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device_t *children;
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int nchildren, i;
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/* check that we have a valid channel to reinit */
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if (!ch || !ch->r_irq)
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return ENXIO;
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if (bootverbose)
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device_printf(dev, "reiniting channel ..\n");
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/* poll for locking the channel */
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while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
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pause("atarini", 1);
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/* catch eventual request in ch->running */
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mtx_lock(&ch->state_mtx);
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if (ch->state & ATA_STALL_QUEUE) {
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/* Recursive reinits and reinits during detach prohobited. */
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mtx_unlock(&ch->state_mtx);
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return (ENXIO);
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}
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if ((request = ch->running))
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callout_stop(&request->callout);
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ch->running = NULL;
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/* unconditionally grap the channel lock */
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ch->state |= ATA_STALL_QUEUE;
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mtx_unlock(&ch->state_mtx);
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/* reset the controller HW, the channel and device(s) */
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ATA_RESET(dev);
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/* reinit the children and delete any that fails */
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if (!device_get_children(dev, &children, &nchildren)) {
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mtx_lock(&Giant); /* newbus suckage it needs Giant */
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for (i = 0; i < nchildren; i++) {
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/* did any children go missing ? */
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if (children[i] && device_is_attached(children[i]) &&
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ATA_REINIT(children[i])) {
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/*
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* if we had a running request and its device matches
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* this child we need to inform the request that the
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* device is gone.
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*/
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if (request && request->dev == children[i]) {
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request->result = ENXIO;
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device_printf(request->dev, "FAILURE - device detached\n");
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/* if not timeout finish request here */
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if (!(request->flags & ATA_R_TIMEOUT))
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ata_finish(request);
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request = NULL;
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}
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device_delete_child(dev, children[i]);
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}
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}
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free(children, M_TEMP);
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mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
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}
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/* if we still have a good request put it on the queue again */
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if (request && !(request->flags & ATA_R_TIMEOUT)) {
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device_printf(request->dev,
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"WARNING - %s requeued due to channel reset",
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ata_cmd2str(request));
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if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
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printf(" LBA=%ju", request->u.ata.lba);
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printf("\n");
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request->flags |= ATA_R_REQUEUE;
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ata_queue_request(request);
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}
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/* we're done release the channel for new work */
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mtx_lock(&ch->state_mtx);
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ch->state = ATA_IDLE;
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mtx_unlock(&ch->state_mtx);
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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/* Add new children. */
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/* ata_identify(dev); */
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if (bootverbose)
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device_printf(dev, "reinit done ..\n");
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/* kick off requests on the queue */
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ata_start(dev);
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return 0;
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}
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int
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ata_suspend(device_t dev)
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{
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struct ata_channel *ch;
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/* check for valid device */
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if (!dev || !(ch = device_get_softc(dev)))
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return ENXIO;
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/* wait for the channel to be IDLE or detached before suspending */
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while (ch->r_irq) {
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mtx_lock(&ch->state_mtx);
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if (ch->state == ATA_IDLE) {
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ch->state = ATA_ACTIVE;
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mtx_unlock(&ch->state_mtx);
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break;
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}
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mtx_unlock(&ch->state_mtx);
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tsleep(ch, PRIBIO, "atasusp", hz/10);
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}
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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return 0;
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}
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int
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ata_resume(device_t dev)
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{
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int error;
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/* check for valid device */
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if (!dev || !device_get_softc(dev))
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return ENXIO;
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/* reinit the devices, we dont know what mode/state they are in */
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error = ata_reinit(dev);
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/* kick off requests on the queue */
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ata_start(dev);
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return error;
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}
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void
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ata_interrupt(void *data)
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{
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struct ata_channel *ch = (struct ata_channel *)data;
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struct ata_request *request;
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mtx_lock(&ch->state_mtx);
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do {
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/* ignore interrupt if its not for us */
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if (ch->hw.status && !ch->hw.status(ch->dev))
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break;
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/* do we have a running request */
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if (!(request = ch->running))
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break;
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ATA_DEBUG_RQ(request, "interrupt");
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/* safetycheck for the right state */
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if (ch->state == ATA_IDLE) {
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device_printf(request->dev, "interrupt on idle channel ignored\n");
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break;
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}
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/*
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* we have the HW locks, so end the transaction for this request
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* if it finishes immediately otherwise wait for next interrupt
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*/
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if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
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ch->running = NULL;
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if (ch->state == ATA_ACTIVE)
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ch->state = ATA_IDLE;
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mtx_unlock(&ch->state_mtx);
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ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
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ata_finish(request);
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return;
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}
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} while (0);
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mtx_unlock(&ch->state_mtx);
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}
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/*
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* device related interfaces
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*/
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static int
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ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
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int32_t flag, struct thread *td)
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{
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device_t device, *children;
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struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
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int *value = (int *)data;
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int i, nchildren, error = ENOTTY;
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switch (cmd) {
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case IOCATAGMAXCHANNEL:
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/* In case we have channel 0..n this will return n+1. */
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*value = devclass_get_maxunit(ata_devclass);
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error = 0;
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break;
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case IOCATAREINIT:
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if (*value >= devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)) ||
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!device_is_attached(device))
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return ENXIO;
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error = ata_reinit(device);
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break;
|
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|
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case IOCATAATTACH:
|
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if (*value >= devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)) ||
|
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!device_is_attached(device))
|
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return ENXIO;
|
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error = DEVICE_ATTACH(device);
|
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break;
|
|
|
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case IOCATADETACH:
|
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if (*value >= devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)) ||
|
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!device_is_attached(device))
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return ENXIO;
|
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error = DEVICE_DETACH(device);
|
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break;
|
|
|
|
case IOCATADEVICES:
|
|
if (devices->channel >= devclass_get_maxunit(ata_devclass) ||
|
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!(device = devclass_get_device(ata_devclass, devices->channel)) ||
|
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!device_is_attached(device))
|
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return ENXIO;
|
|
bzero(devices->name[0], 32);
|
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bzero(&devices->params[0], sizeof(struct ata_params));
|
|
bzero(devices->name[1], 32);
|
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bzero(&devices->params[1], sizeof(struct ata_params));
|
|
if (!device_get_children(device, &children, &nchildren)) {
|
|
for (i = 0; i < nchildren; i++) {
|
|
if (children[i] && device_is_attached(children[i])) {
|
|
struct ata_device *atadev = device_get_softc(children[i]);
|
|
|
|
if (atadev->unit == ATA_MASTER) { /* XXX SOS PM */
|
|
strncpy(devices->name[0],
|
|
device_get_nameunit(children[i]), 32);
|
|
bcopy(&atadev->param, &devices->params[0],
|
|
sizeof(struct ata_params));
|
|
}
|
|
if (atadev->unit == ATA_SLAVE) { /* XXX SOS PM */
|
|
strncpy(devices->name[1],
|
|
device_get_nameunit(children[i]), 32);
|
|
bcopy(&atadev->param, &devices->params[1],
|
|
sizeof(struct ata_params));
|
|
}
|
|
}
|
|
}
|
|
free(children, M_TEMP);
|
|
error = 0;
|
|
}
|
|
else
|
|
error = ENODEV;
|
|
break;
|
|
|
|
default:
|
|
if (ata_raid_ioctl_func)
|
|
error = ata_raid_ioctl_func(cmd, data);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
int
|
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ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
|
|
{
|
|
struct ata_device *atadev = device_get_softc(dev);
|
|
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
|
|
struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
|
|
struct ata_params *params = (struct ata_params *)data;
|
|
int *mode = (int *)data;
|
|
struct ata_request *request;
|
|
caddr_t buf;
|
|
int error;
|
|
|
|
switch (cmd) {
|
|
case IOCATAREQUEST:
|
|
if (ioc_request->count >
|
|
(ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS)) {
|
|
return (EFBIG);
|
|
}
|
|
if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
|
|
return ENOMEM;
|
|
}
|
|
if (!(request = ata_alloc_request())) {
|
|
free(buf, M_ATA);
|
|
return ENOMEM;
|
|
}
|
|
request->dev = atadev->dev;
|
|
if (ioc_request->flags & ATA_CMD_WRITE) {
|
|
error = copyin(ioc_request->data, buf, ioc_request->count);
|
|
if (error) {
|
|
free(buf, M_ATA);
|
|
ata_free_request(request);
|
|
return error;
|
|
}
|
|
}
|
|
if (ioc_request->flags & ATA_CMD_ATAPI) {
|
|
request->flags = ATA_R_ATAPI;
|
|
bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
|
|
}
|
|
else {
|
|
request->u.ata.command = ioc_request->u.ata.command;
|
|
request->u.ata.feature = ioc_request->u.ata.feature;
|
|
request->u.ata.lba = ioc_request->u.ata.lba;
|
|
request->u.ata.count = ioc_request->u.ata.count;
|
|
}
|
|
request->timeout = ioc_request->timeout;
|
|
request->data = buf;
|
|
request->bytecount = ioc_request->count;
|
|
request->transfersize = request->bytecount;
|
|
if (ioc_request->flags & ATA_CMD_CONTROL)
|
|
request->flags |= ATA_R_CONTROL;
|
|
if (ioc_request->flags & ATA_CMD_READ)
|
|
request->flags |= ATA_R_READ;
|
|
if (ioc_request->flags & ATA_CMD_WRITE)
|
|
request->flags |= ATA_R_WRITE;
|
|
ata_queue_request(request);
|
|
if (request->flags & ATA_R_ATAPI) {
|
|
bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
|
|
sizeof(struct atapi_sense));
|
|
}
|
|
else {
|
|
ioc_request->u.ata.command = request->u.ata.command;
|
|
ioc_request->u.ata.feature = request->u.ata.feature;
|
|
ioc_request->u.ata.lba = request->u.ata.lba;
|
|
ioc_request->u.ata.count = request->u.ata.count;
|
|
}
|
|
ioc_request->error = request->result;
|
|
if (ioc_request->flags & ATA_CMD_READ)
|
|
error = copyout(buf, ioc_request->data, ioc_request->count);
|
|
else
|
|
error = 0;
|
|
free(buf, M_ATA);
|
|
ata_free_request(request);
|
|
return error;
|
|
|
|
case IOCATAGPARM:
|
|
ata_getparam(atadev, 0);
|
|
bcopy(&atadev->param, params, sizeof(struct ata_params));
|
|
return 0;
|
|
|
|
case IOCATASMODE:
|
|
atadev->mode = *mode;
|
|
ATA_SETMODE(device_get_parent(dev), dev);
|
|
return 0;
|
|
|
|
case IOCATAGMODE:
|
|
*mode = atadev->mode;
|
|
return 0;
|
|
case IOCATASSPINDOWN:
|
|
atadev->spindown = *mode;
|
|
return 0;
|
|
case IOCATAGSPINDOWN:
|
|
*mode = atadev->spindown;
|
|
return 0;
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ata_boot_attach(void)
|
|
{
|
|
struct ata_channel *ch;
|
|
int ctlr;
|
|
|
|
mtx_lock(&Giant); /* newbus suckage it needs Giant */
|
|
|
|
/* kick of probe and attach on all channels */
|
|
for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
|
|
if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
|
|
ata_identify(ch->dev);
|
|
}
|
|
}
|
|
|
|
/* release the hook that got us here, we are only needed once during boot */
|
|
if (ata_delayed_attach) {
|
|
config_intrhook_disestablish(ata_delayed_attach);
|
|
free(ata_delayed_attach, M_TEMP);
|
|
ata_delayed_attach = NULL;
|
|
}
|
|
|
|
mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
|
|
}
|
|
|
|
|
|
/*
|
|
* misc support functions
|
|
*/
|
|
static device_t
|
|
ata_add_child(device_t parent, struct ata_device *atadev, int unit)
|
|
{
|
|
device_t child;
|
|
|
|
if ((child = device_add_child(parent, NULL, unit))) {
|
|
device_set_softc(child, atadev);
|
|
device_quiet(child);
|
|
atadev->dev = child;
|
|
atadev->max_iosize = DEV_BSIZE;
|
|
atadev->mode = ATA_PIO_MAX;
|
|
}
|
|
return child;
|
|
}
|
|
|
|
int
|
|
ata_getparam(struct ata_device *atadev, int init)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
|
|
struct ata_request *request;
|
|
u_int8_t command = 0;
|
|
int error = ENOMEM, retries = 2;
|
|
|
|
if (ch->devices & (ATA_ATA_MASTER << atadev->unit))
|
|
command = ATA_ATA_IDENTIFY;
|
|
if (ch->devices & (ATA_ATAPI_MASTER << atadev->unit))
|
|
command = ATA_ATAPI_IDENTIFY;
|
|
if (!command)
|
|
return ENXIO;
|
|
|
|
while (retries-- > 0 && error) {
|
|
if (!(request = ata_alloc_request()))
|
|
break;
|
|
request->dev = atadev->dev;
|
|
request->timeout = 1;
|
|
request->retries = 0;
|
|
request->u.ata.command = command;
|
|
request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT);
|
|
if (!bootverbose)
|
|
request->flags |= ATA_R_QUIET;
|
|
request->data = (void *)&atadev->param;
|
|
request->bytecount = sizeof(struct ata_params);
|
|
request->donecount = 0;
|
|
request->transfersize = DEV_BSIZE;
|
|
ata_queue_request(request);
|
|
error = request->result;
|
|
ata_free_request(request);
|
|
}
|
|
|
|
if (!error && (isprint(atadev->param.model[0]) ||
|
|
isprint(atadev->param.model[1]))) {
|
|
struct ata_params *atacap = &atadev->param;
|
|
int16_t *ptr;
|
|
|
|
for (ptr = (int16_t *)atacap;
|
|
ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
|
|
*ptr = le16toh(*ptr);
|
|
}
|
|
if (!(!strncmp(atacap->model, "FX", 2) ||
|
|
!strncmp(atacap->model, "NEC", 3) ||
|
|
!strncmp(atacap->model, "Pioneer", 7) ||
|
|
!strncmp(atacap->model, "SHARP", 5))) {
|
|
bswap(atacap->model, sizeof(atacap->model));
|
|
bswap(atacap->revision, sizeof(atacap->revision));
|
|
bswap(atacap->serial, sizeof(atacap->serial));
|
|
}
|
|
btrim(atacap->model, sizeof(atacap->model));
|
|
bpack(atacap->model, atacap->model, sizeof(atacap->model));
|
|
btrim(atacap->revision, sizeof(atacap->revision));
|
|
bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
|
|
btrim(atacap->serial, sizeof(atacap->serial));
|
|
bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
|
|
|
|
if (bootverbose)
|
|
printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
|
|
device_get_unit(ch->dev),
|
|
ata_unit2str(atadev),
|
|
ata_mode2str(ata_pmode(atacap)),
|
|
ata_mode2str(ata_wmode(atacap)),
|
|
ata_mode2str(ata_umode(atacap)),
|
|
(atacap->hwres & ATA_CABLE_ID) ? "80":"40");
|
|
|
|
if (init) {
|
|
char buffer[64];
|
|
|
|
sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
|
|
device_set_desc_copy(atadev->dev, buffer);
|
|
if ((atadev->param.config & ATA_PROTO_ATAPI) &&
|
|
(atadev->param.config != ATA_CFA_MAGIC1) &&
|
|
(atadev->param.config != ATA_CFA_MAGIC2)) {
|
|
if (atapi_dma &&
|
|
(atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
|
|
ata_umode(&atadev->param) >= ATA_UDMA2)
|
|
atadev->mode = ATA_DMA_MAX;
|
|
}
|
|
else {
|
|
if (ata_dma &&
|
|
(ata_umode(&atadev->param) > 0 ||
|
|
ata_wmode(&atadev->param) > 0))
|
|
atadev->mode = ATA_DMA_MAX;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (!error)
|
|
error = ENXIO;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
int
|
|
ata_identify(device_t dev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
struct ata_device *atadev;
|
|
device_t *children;
|
|
device_t child, master = NULL;
|
|
int nchildren, i, n = ch->devices;
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "Identifying devices: %08x\n", ch->devices);
|
|
|
|
mtx_lock(&Giant);
|
|
/* Skip existing devices. */
|
|
if (!device_get_children(dev, &children, &nchildren)) {
|
|
for (i = 0; i < nchildren; i++) {
|
|
if (children[i] && (atadev = device_get_softc(children[i])))
|
|
n &= ~((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << atadev->unit);
|
|
}
|
|
free(children, M_TEMP);
|
|
}
|
|
/* Create new devices. */
|
|
if (bootverbose)
|
|
device_printf(dev, "New devices: %08x\n", n);
|
|
if (n == 0) {
|
|
mtx_unlock(&Giant);
|
|
return (0);
|
|
}
|
|
for (i = 0; i < ATA_PM; ++i) {
|
|
if (n & (((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << i))) {
|
|
int unit = -1;
|
|
|
|
if (!(atadev = malloc(sizeof(struct ata_device),
|
|
M_ATA, M_NOWAIT | M_ZERO))) {
|
|
device_printf(dev, "out of memory\n");
|
|
return ENOMEM;
|
|
}
|
|
atadev->unit = i;
|
|
#ifdef ATA_STATIC_ID
|
|
if (n & (ATA_ATA_MASTER << i))
|
|
unit = (device_get_unit(dev) << 1) + i;
|
|
#endif
|
|
if ((child = ata_add_child(dev, atadev, unit))) {
|
|
/*
|
|
* PATA slave should be identified first, to allow
|
|
* device cable detection on master to work properly.
|
|
*/
|
|
if (i == 0 && (n & ATA_PORTMULTIPLIER) == 0 &&
|
|
(n & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << 1)) != 0) {
|
|
master = child;
|
|
continue;
|
|
}
|
|
if (ata_getparam(atadev, 1)) {
|
|
device_delete_child(dev, child);
|
|
free(atadev, M_ATA);
|
|
}
|
|
}
|
|
else
|
|
free(atadev, M_ATA);
|
|
}
|
|
}
|
|
if (master) {
|
|
atadev = device_get_softc(master);
|
|
if (ata_getparam(atadev, 1)) {
|
|
device_delete_child(dev, master);
|
|
free(atadev, M_ATA);
|
|
}
|
|
}
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
mtx_unlock(&Giant);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ata_default_registers(device_t dev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
|
|
/* fill in the defaults from whats setup already */
|
|
ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
|
|
ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
|
|
ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
|
|
ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
|
|
ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
|
|
ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
|
|
ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
|
|
ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
|
|
}
|
|
|
|
void
|
|
ata_modify_if_48bit(struct ata_request *request)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(request->parent);
|
|
struct ata_device *atadev = device_get_softc(request->dev);
|
|
|
|
request->flags &= ~ATA_R_48BIT;
|
|
|
|
if (((request->u.ata.lba + request->u.ata.count) >= ATA_MAX_28BIT_LBA ||
|
|
request->u.ata.count > 256) &&
|
|
atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
|
|
|
|
/* translate command into 48bit version */
|
|
switch (request->u.ata.command) {
|
|
case ATA_READ:
|
|
request->u.ata.command = ATA_READ48;
|
|
break;
|
|
case ATA_READ_MUL:
|
|
request->u.ata.command = ATA_READ_MUL48;
|
|
break;
|
|
case ATA_READ_DMA:
|
|
if (ch->flags & ATA_NO_48BIT_DMA) {
|
|
if (request->transfersize > DEV_BSIZE)
|
|
request->u.ata.command = ATA_READ_MUL48;
|
|
else
|
|
request->u.ata.command = ATA_READ48;
|
|
request->flags &= ~ATA_R_DMA;
|
|
}
|
|
else
|
|
request->u.ata.command = ATA_READ_DMA48;
|
|
break;
|
|
case ATA_READ_DMA_QUEUED:
|
|
if (ch->flags & ATA_NO_48BIT_DMA) {
|
|
if (request->transfersize > DEV_BSIZE)
|
|
request->u.ata.command = ATA_READ_MUL48;
|
|
else
|
|
request->u.ata.command = ATA_READ48;
|
|
request->flags &= ~ATA_R_DMA;
|
|
}
|
|
else
|
|
request->u.ata.command = ATA_READ_DMA_QUEUED48;
|
|
break;
|
|
case ATA_WRITE:
|
|
request->u.ata.command = ATA_WRITE48;
|
|
break;
|
|
case ATA_WRITE_MUL:
|
|
request->u.ata.command = ATA_WRITE_MUL48;
|
|
break;
|
|
case ATA_WRITE_DMA:
|
|
if (ch->flags & ATA_NO_48BIT_DMA) {
|
|
if (request->transfersize > DEV_BSIZE)
|
|
request->u.ata.command = ATA_WRITE_MUL48;
|
|
else
|
|
request->u.ata.command = ATA_WRITE48;
|
|
request->flags &= ~ATA_R_DMA;
|
|
}
|
|
else
|
|
request->u.ata.command = ATA_WRITE_DMA48;
|
|
break;
|
|
case ATA_WRITE_DMA_QUEUED:
|
|
if (ch->flags & ATA_NO_48BIT_DMA) {
|
|
if (request->transfersize > DEV_BSIZE)
|
|
request->u.ata.command = ATA_WRITE_MUL48;
|
|
else
|
|
request->u.ata.command = ATA_WRITE48;
|
|
request->u.ata.command = ATA_WRITE48;
|
|
request->flags &= ~ATA_R_DMA;
|
|
}
|
|
else
|
|
request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
|
|
break;
|
|
case ATA_FLUSHCACHE:
|
|
request->u.ata.command = ATA_FLUSHCACHE48;
|
|
break;
|
|
case ATA_SET_MAX_ADDRESS:
|
|
request->u.ata.command = ATA_SET_MAX_ADDRESS48;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
request->flags |= ATA_R_48BIT;
|
|
}
|
|
else if (atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
|
|
|
|
/* translate command into 48bit version */
|
|
switch (request->u.ata.command) {
|
|
case ATA_FLUSHCACHE:
|
|
request->u.ata.command = ATA_FLUSHCACHE48;
|
|
break;
|
|
case ATA_READ_NATIVE_MAX_ADDRESS:
|
|
request->u.ata.command = ATA_READ_NATIVE_MAX_ADDRESS48;
|
|
break;
|
|
case ATA_SET_MAX_ADDRESS:
|
|
request->u.ata.command = ATA_SET_MAX_ADDRESS48;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
request->flags |= ATA_R_48BIT;
|
|
}
|
|
}
|
|
|
|
void
|
|
ata_udelay(int interval)
|
|
{
|
|
/* for now just use DELAY, the timer/sleep subsytems are not there yet */
|
|
if (1 || interval < (1000000/hz) || ata_delayed_attach)
|
|
DELAY(interval);
|
|
else
|
|
pause("ataslp", interval/(1000000/hz));
|
|
}
|
|
|
|
char *
|
|
ata_unit2str(struct ata_device *atadev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
|
|
static char str[8];
|
|
|
|
if (ch->devices & ATA_PORTMULTIPLIER)
|
|
sprintf(str, "port%d", atadev->unit);
|
|
else
|
|
sprintf(str, "%s", atadev->unit == ATA_MASTER ? "master" : "slave");
|
|
return str;
|
|
}
|
|
|
|
char *
|
|
ata_mode2str(int mode)
|
|
{
|
|
switch (mode) {
|
|
case -1: return "UNSUPPORTED";
|
|
case ATA_PIO0: return "PIO0";
|
|
case ATA_PIO1: return "PIO1";
|
|
case ATA_PIO2: return "PIO2";
|
|
case ATA_PIO3: return "PIO3";
|
|
case ATA_PIO4: return "PIO4";
|
|
case ATA_WDMA0: return "WDMA0";
|
|
case ATA_WDMA1: return "WDMA1";
|
|
case ATA_WDMA2: return "WDMA2";
|
|
case ATA_UDMA0: return "UDMA16";
|
|
case ATA_UDMA1: return "UDMA25";
|
|
case ATA_UDMA2: return "UDMA33";
|
|
case ATA_UDMA3: return "UDMA40";
|
|
case ATA_UDMA4: return "UDMA66";
|
|
case ATA_UDMA5: return "UDMA100";
|
|
case ATA_UDMA6: return "UDMA133";
|
|
case ATA_SA150: return "SATA150";
|
|
case ATA_SA300: return "SATA300";
|
|
default:
|
|
if (mode & ATA_DMA_MASK)
|
|
return "BIOSDMA";
|
|
else
|
|
return "BIOSPIO";
|
|
}
|
|
}
|
|
|
|
int
|
|
ata_atapi(device_t dev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
|
|
struct ata_device *atadev = device_get_softc(dev);
|
|
|
|
return (ch->devices & (ATA_ATAPI_MASTER << atadev->unit));
|
|
}
|
|
|
|
int
|
|
ata_pmode(struct ata_params *ap)
|
|
{
|
|
if (ap->atavalid & ATA_FLAG_64_70) {
|
|
if (ap->apiomodes & 0x02)
|
|
return ATA_PIO4;
|
|
if (ap->apiomodes & 0x01)
|
|
return ATA_PIO3;
|
|
}
|
|
if (ap->mwdmamodes & 0x04)
|
|
return ATA_PIO4;
|
|
if (ap->mwdmamodes & 0x02)
|
|
return ATA_PIO3;
|
|
if (ap->mwdmamodes & 0x01)
|
|
return ATA_PIO2;
|
|
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
|
|
return ATA_PIO2;
|
|
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
|
|
return ATA_PIO1;
|
|
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
|
|
return ATA_PIO0;
|
|
return ATA_PIO0;
|
|
}
|
|
|
|
int
|
|
ata_wmode(struct ata_params *ap)
|
|
{
|
|
if (ap->mwdmamodes & 0x04)
|
|
return ATA_WDMA2;
|
|
if (ap->mwdmamodes & 0x02)
|
|
return ATA_WDMA1;
|
|
if (ap->mwdmamodes & 0x01)
|
|
return ATA_WDMA0;
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
ata_umode(struct ata_params *ap)
|
|
{
|
|
if (ap->atavalid & ATA_FLAG_88) {
|
|
if (ap->udmamodes & 0x40)
|
|
return ATA_UDMA6;
|
|
if (ap->udmamodes & 0x20)
|
|
return ATA_UDMA5;
|
|
if (ap->udmamodes & 0x10)
|
|
return ATA_UDMA4;
|
|
if (ap->udmamodes & 0x08)
|
|
return ATA_UDMA3;
|
|
if (ap->udmamodes & 0x04)
|
|
return ATA_UDMA2;
|
|
if (ap->udmamodes & 0x02)
|
|
return ATA_UDMA1;
|
|
if (ap->udmamodes & 0x01)
|
|
return ATA_UDMA0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
ata_limit_mode(device_t dev, int mode, int maxmode)
|
|
{
|
|
struct ata_device *atadev = device_get_softc(dev);
|
|
|
|
if (maxmode && mode > maxmode)
|
|
mode = maxmode;
|
|
|
|
if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
|
|
return min(mode, ata_umode(&atadev->param));
|
|
|
|
if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
|
|
return min(mode, ata_wmode(&atadev->param));
|
|
|
|
if (mode > ata_pmode(&atadev->param))
|
|
return min(mode, ata_pmode(&atadev->param));
|
|
|
|
return mode;
|
|
}
|
|
|
|
static void
|
|
bswap(int8_t *buf, int len)
|
|
{
|
|
u_int16_t *ptr = (u_int16_t*)(buf + len);
|
|
|
|
while (--ptr >= (u_int16_t*)buf)
|
|
*ptr = ntohs(*ptr);
|
|
}
|
|
|
|
static void
|
|
btrim(int8_t *buf, int len)
|
|
{
|
|
int8_t *ptr;
|
|
|
|
for (ptr = buf; ptr < buf+len; ++ptr)
|
|
if (!*ptr || *ptr == '_')
|
|
*ptr = ' ';
|
|
for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
|
|
*ptr = 0;
|
|
}
|
|
|
|
static void
|
|
bpack(int8_t *src, int8_t *dst, int len)
|
|
{
|
|
int i, j, blank;
|
|
|
|
for (i = j = blank = 0 ; i < len; i++) {
|
|
if (blank && src[i] == ' ') continue;
|
|
if (blank && src[i] != ' ') {
|
|
dst[j++] = src[i];
|
|
blank = 0;
|
|
continue;
|
|
}
|
|
if (src[i] == ' ') {
|
|
blank = 1;
|
|
if (i == 0)
|
|
continue;
|
|
}
|
|
dst[j++] = src[i];
|
|
}
|
|
if (j < len)
|
|
dst[j] = 0x00;
|
|
}
|
|
|
|
|
|
/*
|
|
* module handeling
|
|
*/
|
|
static int
|
|
ata_module_event_handler(module_t mod, int what, void *arg)
|
|
{
|
|
static struct cdev *atacdev;
|
|
|
|
switch (what) {
|
|
case MOD_LOAD:
|
|
/* register controlling device */
|
|
atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
|
|
|
|
if (cold) {
|
|
/* register boot attach to be run when interrupts are enabled */
|
|
if (!(ata_delayed_attach = (struct intr_config_hook *)
|
|
malloc(sizeof(struct intr_config_hook),
|
|
M_TEMP, M_NOWAIT | M_ZERO))) {
|
|
printf("ata: malloc of delayed attach hook failed\n");
|
|
return EIO;
|
|
}
|
|
ata_delayed_attach->ich_func = (void*)ata_boot_attach;
|
|
if (config_intrhook_establish(ata_delayed_attach) != 0) {
|
|
printf("ata: config_intrhook_establish failed\n");
|
|
free(ata_delayed_attach, M_TEMP);
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case MOD_UNLOAD:
|
|
/* deregister controlling device */
|
|
destroy_dev(atacdev);
|
|
return 0;
|
|
|
|
default:
|
|
return EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
|
|
DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
|
|
MODULE_VERSION(ata, 1);
|
|
|
|
static void
|
|
ata_init(void)
|
|
{
|
|
ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
|
|
NULL, NULL, NULL, NULL, 0, 0);
|
|
ata_composite_zone = uma_zcreate("ata_composite",
|
|
sizeof(struct ata_composite),
|
|
NULL, NULL, NULL, NULL, 0, 0);
|
|
}
|
|
SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
|
|
|
|
static void
|
|
ata_uninit(void)
|
|
{
|
|
uma_zdestroy(ata_composite_zone);
|
|
uma_zdestroy(ata_request_zone);
|
|
}
|
|
SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);
|