| Current Path : /sys/dev/ata/chipsets/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/ata/chipsets/ata-acard.c |
/*-
* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/ata/chipsets/ata-acard.c 233717 2012-03-30 23:56:16Z marius $");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/ata.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sema.h>
#include <sys/taskqueue.h>
#include <vm/uma.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-pci.h>
#include <ata_if.h>
#ifndef ATA_CAM
struct ata_serialize {
struct mtx locked_mtx;
int locked_ch;
int restart_ch;
};
#endif
/* local prototypes */
static int ata_acard_chipinit(device_t dev);
static int ata_acard_ch_attach(device_t dev);
static int ata_acard_status(device_t dev);
static int ata_acard_850_setmode(device_t dev, int target, int mode);
static int ata_acard_86X_setmode(device_t dev, int target, int mode);
#ifndef ATA_CAM
static int ata_acard_chipdeinit(device_t dev);
static int ata_serialize(device_t dev, int flags);
static void ata_serialize_init(struct ata_serialize *serial);
#endif
/* misc defines */
#define ATP_OLD 1
/*
* Acard chipset support functions
*/
static int
ata_acard_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static const struct ata_chip_id const ids[] =
{{ ATA_ATP850R, 0, ATP_OLD, 0x00, ATA_UDMA2, "ATP850" },
{ ATA_ATP860A, 0, 0, 0x00, ATA_UDMA4, "ATP860A" },
{ ATA_ATP860R, 0, 0, 0x00, ATA_UDMA4, "ATP860R" },
{ ATA_ATP865A, 0, 0, 0x00, ATA_UDMA6, "ATP865A" },
{ ATA_ATP865R, 0, 0, 0x00, ATA_UDMA6, "ATP865R" },
{ 0, 0, 0, 0, 0, 0}};
if (pci_get_vendor(dev) != ATA_ACARD_ID)
return ENXIO;
if (!(ctlr->chip = ata_match_chip(dev, ids)))
return ENXIO;
ata_set_desc(dev);
ctlr->chipinit = ata_acard_chipinit;
#ifndef ATA_CAM
ctlr->chipdeinit = ata_acard_chipdeinit;
#endif
return (BUS_PROBE_DEFAULT);
}
static int
ata_acard_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
#ifndef ATA_CAM
struct ata_serialize *serial;
#endif
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
ctlr->ch_attach = ata_acard_ch_attach;
ctlr->ch_detach = ata_pci_ch_detach;
if (ctlr->chip->cfg1 == ATP_OLD) {
ctlr->setmode = ata_acard_850_setmode;
#ifndef ATA_CAM
ctlr->locking = ata_serialize;
serial = malloc(sizeof(struct ata_serialize),
M_ATAPCI, M_WAITOK | M_ZERO);
ata_serialize_init(serial);
ctlr->chipset_data = serial;
#endif
}
else
ctlr->setmode = ata_acard_86X_setmode;
return 0;
}
#ifndef ATA_CAM
static int
ata_acard_chipdeinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
struct ata_serialize *serial;
if (ctlr->chip->cfg1 == ATP_OLD) {
serial = ctlr->chipset_data;
mtx_destroy(&serial->locked_mtx);
free(serial, M_ATAPCI);
ctlr->chipset_data = NULL;
}
return (0);
}
#endif
static int
ata_acard_ch_attach(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
/* setup the usual register normal pci style */
if (ata_pci_ch_attach(dev))
return ENXIO;
ch->hw.status = ata_acard_status;
ch->flags |= ATA_NO_ATAPI_DMA;
return 0;
}
static int
ata_acard_status(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
if (ctlr->chip->cfg1 == ATP_OLD &&
ATA_LOCKING(dev, ATA_LF_WHICH) != ch->unit)
return 0;
if (ch->dma.flags & ATA_DMA_ACTIVE) {
int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) !=
ATA_BMSTAT_INTERRUPT)
return 0;
ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
DELAY(1);
ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
DELAY(1);
}
if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
DELAY(100);
if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
return 0;
}
return 1;
}
static int
ata_acard_850_setmode(device_t dev, int target, int mode)
{
device_t parent = device_get_parent(dev);
struct ata_pci_controller *ctlr = device_get_softc(parent);
struct ata_channel *ch = device_get_softc(dev);
int devno = (ch->unit << 1) + target;
mode = min(mode, ctlr->chip->max_dma);
/* XXX SOS missing WDMA0+1 + PIO modes */
if (mode >= ATA_WDMA2) {
u_int8_t reg54 = pci_read_config(parent, 0x54, 1);
reg54 &= ~(0x03 << (devno << 1));
if (mode >= ATA_UDMA0)
reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1));
pci_write_config(parent, 0x54, reg54, 1);
pci_write_config(parent, 0x4a, 0xa6, 1);
pci_write_config(parent, 0x40 + (devno << 1), 0x0301, 2);
}
/* we could set PIO mode timings, but we assume the BIOS did that */
return (mode);
}
static int
ata_acard_86X_setmode(device_t dev, int target, int mode)
{
device_t parent = device_get_parent(dev);
struct ata_pci_controller *ctlr = device_get_softc(parent);
struct ata_channel *ch = device_get_softc(dev);
int devno = (ch->unit << 1) + target;
mode = min(mode, ctlr->chip->max_dma);
/* XXX SOS missing WDMA0+1 + PIO modes */
if (mode >= ATA_WDMA2) {
u_int16_t reg44 = pci_read_config(parent, 0x44, 2);
reg44 &= ~(0x000f << (devno << 2));
if (mode >= ATA_UDMA0)
reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2));
pci_write_config(parent, 0x44, reg44, 2);
pci_write_config(parent, 0x4a, 0xa6, 1);
pci_write_config(parent, 0x40 + devno, 0x31, 1);
}
/* we could set PIO mode timings, but we assume the BIOS did that */
return (mode);
}
#ifndef ATA_CAM
static void
ata_serialize_init(struct ata_serialize *serial)
{
mtx_init(&serial->locked_mtx, "ATA serialize lock", NULL, MTX_DEF);
serial->locked_ch = -1;
serial->restart_ch = -1;
}
static int
ata_serialize(device_t dev, int flags)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
struct ata_serialize *serial;
int res;
serial = ctlr->chipset_data;
mtx_lock(&serial->locked_mtx);
switch (flags) {
case ATA_LF_LOCK:
if (serial->locked_ch == -1)
serial->locked_ch = ch->unit;
if (serial->locked_ch != ch->unit)
serial->restart_ch = ch->unit;
break;
case ATA_LF_UNLOCK:
if (serial->locked_ch == ch->unit) {
serial->locked_ch = -1;
if (serial->restart_ch != -1) {
if ((ch = ctlr->interrupt[serial->restart_ch].argument)) {
serial->restart_ch = -1;
mtx_unlock(&serial->locked_mtx);
ata_start(dev);
return -1;
}
}
}
break;
case ATA_LF_WHICH:
break;
}
res = serial->locked_ch;
mtx_unlock(&serial->locked_mtx);
return res;
}
#endif
ATA_DECLARE_DRIVER(ata_acard);