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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: release/9.1.0/sys/dev/ata/chipsets/ata-serverworks.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>
/* local prototypes */
static int ata_serverworks_chipinit(device_t dev);
static int ata_serverworks_ch_attach(device_t dev);
static int ata_serverworks_ch_detach(device_t dev);
static void ata_serverworks_tf_read(struct ata_request *request);
static void ata_serverworks_tf_write(struct ata_request *request);
static int ata_serverworks_setmode(device_t dev, int target, int mode);
static void ata_serverworks_sata_reset(device_t dev);
static int ata_serverworks_status(device_t dev);
/* misc defines */
#define SWKS_33 0
#define SWKS_66 1
#define SWKS_100 2
#define SWKS_MIO 3
/*
* ServerWorks chipset support functions
*/
static int
ata_serverworks_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static const struct ata_chip_id const ids[] =
{{ ATA_ROSB4, 0x00, SWKS_33, 0, ATA_WDMA2, "ROSB4" },
{ ATA_CSB5, 0x92, SWKS_100, 0, ATA_UDMA5, "CSB5" },
{ ATA_CSB5, 0x00, SWKS_66, 0, ATA_UDMA4, "CSB5" },
{ ATA_CSB6, 0x00, SWKS_100, 0, ATA_UDMA5, "CSB6" },
{ ATA_CSB6_1, 0x00, SWKS_66, 0, ATA_UDMA4, "CSB6" },
{ ATA_HT1000, 0x00, SWKS_100, 0, ATA_UDMA5, "HT1000" },
{ ATA_HT1000_S1, 0x00, SWKS_MIO, 4, ATA_SA150, "HT1000" },
{ ATA_HT1000_S2, 0x00, SWKS_MIO, 4, ATA_SA150, "HT1000" },
{ ATA_K2, 0x00, SWKS_MIO, 4, ATA_SA150, "K2" },
{ ATA_FRODO4, 0x00, SWKS_MIO, 4, ATA_SA150, "Frodo4" },
{ ATA_FRODO8, 0x00, SWKS_MIO, 8, ATA_SA150, "Frodo8" },
{ 0, 0, 0, 0, 0, 0}};
if (pci_get_vendor(dev) != ATA_SERVERWORKS_ID)
return ENXIO;
if (!(ctlr->chip = ata_match_chip(dev, ids)))
return ENXIO;
ata_set_desc(dev);
ctlr->chipinit = ata_serverworks_chipinit;
return (BUS_PROBE_DEFAULT);
}
static int
ata_serverworks_status(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
/*
* Check if this interrupt belongs to our channel.
*/
if (!(ATA_INL(ctlr->r_res2, 0x1f80) & (1 << ch->unit)))
return (0);
/*
* We need to do a 4-byte read on the status reg before the values
* will report correctly
*/
ATA_IDX_INL(ch,ATA_STATUS);
return ata_pci_status(dev);
}
static int
ata_serverworks_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->cfg1 == SWKS_MIO) {
ctlr->r_type2 = SYS_RES_MEMORY;
ctlr->r_rid2 = PCIR_BAR(5);
if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
&ctlr->r_rid2, RF_ACTIVE)))
return ENXIO;
ctlr->channels = ctlr->chip->cfg2;
ctlr->ch_attach = ata_serverworks_ch_attach;
ctlr->ch_detach = ata_serverworks_ch_detach;
ctlr->setmode = ata_sata_setmode;
ctlr->getrev = ata_sata_getrev;
ctlr->reset = ata_serverworks_sata_reset;
return 0;
}
else if (ctlr->chip->cfg1 == SWKS_33) {
device_t *children;
int nchildren, i;
/* locate the ISA part in the southbridge and enable UDMA33 */
if (!device_get_children(device_get_parent(dev), &children,&nchildren)){
for (i = 0; i < nchildren; i++) {
if (pci_get_devid(children[i]) == ATA_ROSB4_ISA) {
pci_write_config(children[i], 0x64,
(pci_read_config(children[i], 0x64, 4) &
~0x00002000) | 0x00004000, 4);
break;
}
}
free(children, M_TEMP);
}
}
else {
pci_write_config(dev, 0x5a,
(pci_read_config(dev, 0x5a, 1) & ~0x40) |
(ctlr->chip->cfg1 == SWKS_100) ? 0x03 : 0x02, 1);
}
ctlr->setmode = ata_serverworks_setmode;
return 0;
}
static int
ata_serverworks_ch_attach(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
int ch_offset;
int i;
ch_offset = ch->unit * 0x100;
for (i = ATA_DATA; i < ATA_MAX_RES; i++)
ch->r_io[i].res = ctlr->r_res2;
/* setup ATA registers */
ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
ch->r_io[ATA_FEATURE].offset = ch_offset + 0x04;
ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1c;
ch->r_io[ATA_CONTROL].offset = ch_offset + 0x20;
ata_default_registers(dev);
/* setup DMA registers */
ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x30;
ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x32;
ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x34;
/* setup SATA registers */
ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x40;
ch->r_io[ATA_SERROR].offset = ch_offset + 0x44;
ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x48;
ch->flags |= ATA_NO_SLAVE | ATA_SATA | ATA_KNOWN_PRESENCE;
ata_pci_hw(dev);
ch->hw.tf_read = ata_serverworks_tf_read;
ch->hw.tf_write = ata_serverworks_tf_write;
if (ctlr->chip->chipid == ATA_K2) {
/*
* Set SICR registers to turn off waiting for a status message
* before sending FIS. Values obtained from the Darwin driver.
*/
ATA_OUTL(ctlr->r_res2, ch_offset + 0x80,
ATA_INL(ctlr->r_res2, ch_offset + 0x80) & ~0x00040000);
ATA_OUTL(ctlr->r_res2, ch_offset + 0x88, 0);
/*
* Some controllers have a bug where they will send the command
* to the drive before seeing a DMA start, and then can begin
* receiving data before the DMA start arrives. The controller
* will then become confused and either corrupt the data or crash.
* Remedy this by starting DMA before sending the drive command.
*/
ch->flags |= ATA_DMA_BEFORE_CMD;
/*
* The status register must be read as a long to fill the other
* registers.
*/
ch->hw.status = ata_serverworks_status;
ch->flags |= ATA_STATUS_IS_LONG;
}
/* chip does not reliably do 64K DMA transfers */
ch->dma.max_iosize = 64 * DEV_BSIZE;
ata_pci_dmainit(dev);
return 0;
}
static int
ata_serverworks_ch_detach(device_t dev)
{
ata_pci_dmafini(dev);
return (0);
}
static void
ata_serverworks_tf_read(struct ata_request *request)
{
struct ata_channel *ch = device_get_softc(request->parent);
if (request->flags & ATA_R_48BIT) {
u_int16_t temp;
request->u.ata.count = ATA_IDX_INW(ch, ATA_COUNT);
temp = ATA_IDX_INW(ch, ATA_SECTOR);
request->u.ata.lba = (u_int64_t)(temp & 0x00ff) |
((u_int64_t)(temp & 0xff00) << 24);
temp = ATA_IDX_INW(ch, ATA_CYL_LSB);
request->u.ata.lba |= ((u_int64_t)(temp & 0x00ff) << 8) |
((u_int64_t)(temp & 0xff00) << 32);
temp = ATA_IDX_INW(ch, ATA_CYL_MSB);
request->u.ata.lba |= ((u_int64_t)(temp & 0x00ff) << 16) |
((u_int64_t)(temp & 0xff00) << 40);
}
else {
request->u.ata.count = ATA_IDX_INW(ch, ATA_COUNT) & 0x00ff;
request->u.ata.lba = (ATA_IDX_INW(ch, ATA_SECTOR) & 0x00ff) |
((ATA_IDX_INW(ch, ATA_CYL_LSB) & 0x00ff) << 8) |
((ATA_IDX_INW(ch, ATA_CYL_MSB) & 0x00ff) << 16) |
((ATA_IDX_INW(ch, ATA_DRIVE) & 0xf) << 24);
}
}
static void
ata_serverworks_tf_write(struct ata_request *request)
{
struct ata_channel *ch = device_get_softc(request->parent);
#ifndef ATA_CAM
struct ata_device *atadev = device_get_softc(request->dev);
#endif
if (request->flags & ATA_R_48BIT) {
ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
(request->u.ata.lba & 0x00ff));
ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
((request->u.ata.lba >> 8) & 0x00ff));
ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
((request->u.ata.lba >> 16) & 0x00ff));
ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(request->unit));
}
else {
ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
#ifndef ATA_CAM
if (atadev->flags & ATA_D_USE_CHS) {
int heads, sectors;
if (atadev->param.atavalid & ATA_FLAG_54_58) {
heads = atadev->param.current_heads;
sectors = atadev->param.current_sectors;
}
else {
heads = atadev->param.heads;
sectors = atadev->param.sectors;
}
ATA_IDX_OUTW(ch, ATA_SECTOR, (request->u.ata.lba % sectors)+1);
ATA_IDX_OUTW(ch, ATA_CYL_LSB,
(request->u.ata.lba / (sectors * heads)));
ATA_IDX_OUTW(ch, ATA_CYL_MSB,
(request->u.ata.lba / (sectors * heads)) >> 8);
ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_IBM | ATA_DEV(request->unit) |
(((request->u.ata.lba% (sectors * heads)) /
sectors) & 0xf));
}
else {
#endif
ATA_IDX_OUTW(ch, ATA_SECTOR, request->u.ata.lba);
ATA_IDX_OUTW(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
ATA_IDX_OUTW(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
ATA_IDX_OUTW(ch, ATA_DRIVE,
ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit) |
((request->u.ata.lba >> 24) & 0x0f));
#ifndef ATA_CAM
}
#endif
}
}
static int
ata_serverworks_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;
int offset = (devno ^ 0x01) << 3;
int piomode;
static const uint8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
static const uint8_t dmatimings[] = { 0x77, 0x21, 0x20 };
mode = min(mode, ctlr->chip->max_dma);
if (mode >= ATA_UDMA0) {
/* Set UDMA mode, enable UDMA, set WDMA2/PIO4 */
pci_write_config(parent, 0x56,
(pci_read_config(parent, 0x56, 2) &
~(0xf << (devno << 2))) |
((mode & ATA_MODE_MASK) << (devno << 2)), 2);
pci_write_config(parent, 0x54,
pci_read_config(parent, 0x54, 1) |
(0x01 << devno), 1);
pci_write_config(parent, 0x44,
(pci_read_config(parent, 0x44, 4) &
~(0xff << offset)) |
(dmatimings[2] << offset), 4);
piomode = ATA_PIO4;
} else if (mode >= ATA_WDMA0) {
/* Disable UDMA, set WDMA mode and timings, calculate PIO. */
pci_write_config(parent, 0x54,
pci_read_config(parent, 0x54, 1) &
~(0x01 << devno), 1);
pci_write_config(parent, 0x44,
(pci_read_config(parent, 0x44, 4) &
~(0xff << offset)) |
(dmatimings[mode & ATA_MODE_MASK] << offset), 4);
piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
(mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
} else {
/* Disable UDMA, set requested PIO. */
pci_write_config(parent, 0x54,
pci_read_config(parent, 0x54, 1) &
~(0x01 << devno), 1);
piomode = mode;
}
/* Set PIO mode and timings, calculated above. */
if (ctlr->chip->cfg1 != SWKS_33) {
pci_write_config(parent, 0x4a,
(pci_read_config(parent, 0x4a, 2) &
~(0xf << (devno << 2))) |
((piomode - ATA_PIO0) << (devno<<2)),2);
}
pci_write_config(parent, 0x40,
(pci_read_config(parent, 0x40, 4) &
~(0xff << offset)) |
(piotimings[ata_mode2idx(piomode)] << offset), 4);
return (mode);
}
static void
ata_serverworks_sata_reset(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
if (ata_sata_phy_reset(dev, -1, 0))
ata_generic_reset(dev);
else
ch->devices = 0;
}
ATA_DECLARE_DRIVER(ata_serverworks);