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/*-
* 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("$FreeBSD$");
#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>
/* local prototypes */
static int ata_national_chipinit(device_t dev);
static void ata_national_setmode(device_t dev, int mode);
/*
* National chipset support functions
*/
static int
ata_national_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
/* this chip is a clone of the Cyrix chip, bugs and all */
if (pci_get_devid(dev) == ATA_SC1100) {
device_set_desc(dev, "National Geode SC1100 ATA33 controller");
ctlr->chipinit = ata_national_chipinit;
return (BUS_PROBE_DEFAULT);
}
return ENXIO;
}
static int
ata_national_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
ctlr->setmode = ata_national_setmode;
return 0;
}
static void
ata_national_setmode(device_t dev, int mode)
{
device_t gparent = GRANDPARENT(dev);
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
struct ata_device *atadev = device_get_softc(dev);
int devno = (ch->unit << 1) + atadev->unit;
u_int32_t piotiming[] =
{ 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
0x00803020, 0x20102010, 0x00100010,
0x00100010, 0x00100010, 0x00100010 };
u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
int error;
ch->dma.alignment = 16;
ch->dma.max_iosize = 64 * DEV_BSIZE;
mode = ata_limit_mode(dev, mode, ATA_UDMA2);
error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
if (bootverbose)
device_printf(dev, "%s setting %s on National chip\n",
(error) ? "failed" : "success", ata_mode2str(mode));
if (!error) {
if (mode >= ATA_UDMA0) {
pci_write_config(gparent, 0x44 + (devno << 3),
udmatiming[mode & ATA_MODE_MASK], 4);
}
else if (mode >= ATA_WDMA0) {
pci_write_config(gparent, 0x44 + (devno << 3),
dmatiming[mode & ATA_MODE_MASK], 4);
}
else {
pci_write_config(gparent, 0x44 + (devno << 3),
pci_read_config(gparent, 0x44 + (devno << 3), 4) |
0x80000000, 4);
}
pci_write_config(gparent, 0x40 + (devno << 3),
piotiming[ata_mode2idx(mode)], 4);
atadev->mode = mode;
}
}
ATA_DECLARE_DRIVER(ata_national);
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