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48a21eb99c
freebsd/sys/dev/ata/chipsets/ata-ite.c
Alexander Motin f95dcaae42 MFp4: 
Reduce default PCI ATA drivers priorities from absolute to default,
to allow them been overriden. It was so before modularization.
2009-06-24 19:49:18 +00:00

248 lines
7.6 KiB
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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_ite_chipinit(device_t dev);
static void ata_ite_821x_setmode(device_t dev, int mode);
static void ata_ite_8213_setmode(device_t dev, int mode);
/*
* Integrated Technology Express Inc. (ITE) chipset support functions
*/
static int
ata_ite_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static struct ata_chip_id ids[] =
{{ ATA_IT8213F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8213F" },
{ ATA_IT8212F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8212F" },
{ ATA_IT8211F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8211F" },
{ 0, 0, 0, 0, 0, 0}};
if (pci_get_vendor(dev) != ATA_ITE_ID)
return ENXIO;
if (!(ctlr->chip = ata_match_chip(dev, ids)))
return ENXIO;
ata_set_desc(dev);
ctlr->chipinit = ata_ite_chipinit;
return (BUS_PROBE_DEFAULT);
}
static int
ata_ite_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
if (ctlr->chip->chipid == ATA_IT8213F) {
/* the ITE 8213F only has one channel */
ctlr->channels = 1;
ctlr->setmode = ata_ite_8213_setmode;
}
else {
/* set PCI mode and 66Mhz reference clock */
pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) & ~0x83, 1);
/* set default active & recover timings */
pci_write_config(dev, 0x54, 0x31, 1);
pci_write_config(dev, 0x56, 0x31, 1);
ctlr->setmode = ata_ite_821x_setmode;
}
return 0;
}
static void
ata_ite_821x_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;
int error;
/* correct the mode for what the HW supports */
mode = ata_limit_mode(dev, mode, ATA_UDMA6);
/* check the CBLID bits for 80 conductor cable detection */
if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x40, 2) &
(ch->unit ? (1<<3) : (1<<2)))) {
ata_print_cable(dev, "controller");
mode = ATA_UDMA2;
}
/* set the wanted mode on the device */
error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
if (bootverbose)
device_printf(dev, "%s setting %s on ITE8212F chip\n",
(error) ? "failed" : "success", ata_mode2str(mode));
/* if the device accepted the mode change, setup the HW accordingly */
if (!error) {
if (mode >= ATA_UDMA0) {
u_int8_t udmatiming[] =
{ 0x44, 0x42, 0x31, 0x21, 0x11, 0xa2, 0x91 };
/* enable UDMA mode */
pci_write_config(gparent, 0x50,
pci_read_config(gparent, 0x50, 1) &
~(1 << (devno + 3)), 1);
/* set UDMA timing */
pci_write_config(gparent,
0x56 + (ch->unit << 2) + atadev->unit,
udmatiming[mode & ATA_MODE_MASK], 1);
}
else {
u_int8_t chtiming[] =
{ 0xaa, 0xa3, 0xa1, 0x33, 0x31, 0x88, 0x32, 0x31 };
/* disable UDMA mode */
pci_write_config(gparent, 0x50,
pci_read_config(gparent, 0x50, 1) |
(1 << (devno + 3)), 1);
/* set active and recover timing (shared between master & slave) */
if (pci_read_config(gparent, 0x54 + (ch->unit << 2), 1) <
chtiming[ata_mode2idx(mode)])
pci_write_config(gparent, 0x54 + (ch->unit << 2),
chtiming[ata_mode2idx(mode)], 1);
}
atadev->mode = mode;
}
}
static void
ata_ite_8213_setmode(device_t dev, int mode)
{
device_t gparent = GRANDPARENT(dev);
struct ata_pci_controller *ctlr = device_get_softc(gparent);
struct ata_device *atadev = device_get_softc(dev);
u_int16_t reg40 = pci_read_config(gparent, 0x40, 2);
u_int8_t reg44 = pci_read_config(gparent, 0x44, 1);
u_int8_t reg48 = pci_read_config(gparent, 0x48, 1);
u_int16_t reg4a = pci_read_config(gparent, 0x4a, 2);
u_int16_t reg54 = pci_read_config(gparent, 0x54, 2);
u_int16_t mask40 = 0, new40 = 0;
u_int8_t mask44 = 0, new44 = 0;
int devno = atadev->unit;
int error;
u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
if (mode > ATA_UDMA2 && !(reg54 & (0x10 << devno))) {
ata_print_cable(dev, "controller");
mode = ATA_UDMA2;
}
error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
if (bootverbose)
device_printf(dev, "%ssetting %s on %s chip\n",
(error) ? "FAILURE " : "",
ata_mode2str(mode), ctlr->chip->text);
if (!error) {
if (mode >= ATA_UDMA0) {
u_int8_t utimings[] = { 0x00, 0x01, 0x10, 0x01, 0x10, 0x01, 0x10 };
pci_write_config(gparent, 0x48, reg48 | (0x0001 << devno), 2);
pci_write_config(gparent, 0x4a,
(reg4a & ~(0x3 << (devno << 2))) |
(utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
}
else {
pci_write_config(gparent, 0x48, reg48 & ~(0x0001 << devno), 2);
pci_write_config(gparent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
}
if (mode >= ATA_UDMA2)
reg54 |= (0x1 << devno);
else
reg54 &= ~(0x1 << devno);
if (mode >= ATA_UDMA5)
reg54 |= (0x1000 << devno);
else
reg54 &= ~(0x1000 << devno);
pci_write_config(gparent, 0x54, reg54, 2);
reg40 &= 0xff00;
reg40 |= 0x4033;
if (atadev->unit == ATA_MASTER) {
reg40 |= (ata_atapi(dev) ? 0x04 : 0x00);
mask40 = 0x3300;
new40 = timings[ata_mode2idx(mode)] << 8;
}
else {
reg40 |= (ata_atapi(dev) ? 0x40 : 0x00);
mask44 = 0x0f;
new44 = ((timings[ata_mode2idx(mode)] & 0x30) >> 2) |
(timings[ata_mode2idx(mode)] & 0x03);
}
pci_write_config(gparent, 0x40, (reg40 & ~mask40) | new40, 4);
pci_write_config(gparent, 0x44, (reg44 & ~mask44) | new44, 1);
atadev->mode = mode;
}
}
ATA_DECLARE_DRIVER(ata_ite);
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