freebsd-dev/sys/dev/ata/chipsets/ata-via.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

552 lines
16 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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 <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_via_chipinit(device_t dev);
static int ata_via_ch_attach(device_t dev);
static int ata_via_ch_detach(device_t dev);
static void ata_via_reset(device_t dev);
static int ata_via_status(device_t dev);
static int ata_via_old_setmode(device_t dev, int target, int mode);
static void ata_via_southbridge_fixup(device_t dev);
static int ata_via_new_setmode(device_t dev, int target, int mode);
static int ata_via_sata_ch_attach(device_t dev);
static int ata_via_sata_getrev(device_t dev, int target);
static int ata_via_sata_setmode(device_t dev, int target, int mode);
static void ata_via_sata_reset(device_t dev);
static int ata_via_sata_scr_read(device_t dev, int port, int reg,
u_int32_t *result);
static int ata_via_sata_scr_write(device_t dev, int port, int reg,
u_int32_t value);
static int ata_via_sata_status(device_t dev);
/* misc defines */
#define VIA33 0
#define VIA66 1
#define VIA100 2
#define VIA133 3
#define VIACLK 0x01
#define VIABUG 0x02
#define VIABAR 0x04
#define VIASATA 0x10
/*
* VIA Technologies Inc. chipset support functions
*/
static int
ata_via_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
static const struct ata_chip_id ids[] =
{{ ATA_VIA82C586, 0x02, VIA33, 0x00, ATA_UDMA2, "82C586B" },
{ ATA_VIA82C586, 0x00, VIA33, 0x00, ATA_WDMA2, "82C586" },
{ ATA_VIA82C596, 0x12, VIA66, VIACLK, ATA_UDMA4, "82C596B" },
{ ATA_VIA82C596, 0x00, VIA33, 0x00, ATA_UDMA2, "82C596" },
{ ATA_VIA82C686, 0x40, VIA100, VIABUG, ATA_UDMA5, "82C686B"},
{ ATA_VIA82C686, 0x10, VIA66, VIACLK, ATA_UDMA4, "82C686A" },
{ ATA_VIA82C686, 0x00, VIA33, 0x00, ATA_UDMA2, "82C686" },
{ ATA_VIA8231, 0x00, VIA100, VIABUG, ATA_UDMA5, "8231" },
{ ATA_VIA8233, 0x00, VIA100, 0x00, ATA_UDMA5, "8233" },
{ ATA_VIA8233C, 0x00, VIA100, 0x00, ATA_UDMA5, "8233C" },
{ ATA_VIA8233A, 0x00, VIA133, 0x00, ATA_UDMA6, "8233A" },
{ ATA_VIA8235, 0x00, VIA133, 0x00, ATA_UDMA6, "8235" },
{ ATA_VIA8237, 0x00, VIA133, 0x00, ATA_UDMA6, "8237" },
{ ATA_VIA8237A, 0x00, VIA133, 0x00, ATA_UDMA6, "8237A" },
{ ATA_VIA8237S, 0x00, VIA133, 0x00, ATA_UDMA6, "8237S" },
{ ATA_VIA8237_5372, 0x00, VIA133, 0x00, ATA_UDMA6, "8237" },
{ ATA_VIA8237_7372, 0x00, VIA133, 0x00, ATA_UDMA6, "8237" },
{ ATA_VIA8251, 0x00, VIA133, 0x00, ATA_UDMA6, "8251" },
{ ATA_VIACX700, 0x00, VIA133, VIASATA, ATA_SA150, "CX700" },
{ ATA_VIAVX800, 0x00, VIA133, VIASATA, ATA_SA150, "VX800" },
{ ATA_VIAVX855, 0x00, VIA133, 0x00, ATA_UDMA6, "VX855" },
{ ATA_VIAVX900, 0x00, VIA133, VIASATA, ATA_SA300, "VX900" },
{ 0, 0, 0, 0, 0, 0 }};
static const struct ata_chip_id new_ids[] =
{{ ATA_VIA6410, 0x00, 0, 0x00, ATA_UDMA6, "6410" },
{ ATA_VIA6420, 0x00, 7, 0x00, ATA_SA150, "6420" },
{ ATA_VIA6421, 0x00, 6, VIABAR, ATA_SA150, "6421" },
{ ATA_VIA8237A, 0x00, 7, 0x00, ATA_SA150, "8237A" },
{ ATA_VIA8237S, 0x00, 7, 0x00, ATA_SA150, "8237S" },
{ ATA_VIA8237_5372, 0x00, 7, 0x00, ATA_SA300, "8237" },
{ ATA_VIA8237_7372, 0x00, 7, 0x00, ATA_SA300, "8237" },
{ 0, 0, 0, 0, 0, 0 }};
if (pci_get_vendor(dev) != ATA_VIA_ID)
return ENXIO;
if (pci_get_devid(dev) == ATA_VIA82C571 ||
pci_get_devid(dev) == ATA_VIACX700IDE ||
pci_get_devid(dev) == ATA_VIASATAIDE ||
pci_get_devid(dev) == ATA_VIASATAIDE2 ||
pci_get_devid(dev) == ATA_VIASATAIDE3) {
if (!(ctlr->chip = ata_find_chip(dev, ids, -99)))
return ENXIO;
}
else {
if (!(ctlr->chip = ata_match_chip(dev, new_ids)))
return ENXIO;
}
ata_set_desc(dev);
ctlr->chipinit = ata_via_chipinit;
return (BUS_PROBE_LOW_PRIORITY);
}
static int
ata_via_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
/* 2 SATA with "SATA registers" at PCI config space + PATA on secondary */
if (ctlr->chip->cfg2 & VIASATA) {
ctlr->ch_attach = ata_via_sata_ch_attach;
ctlr->setmode = ata_via_sata_setmode;
ctlr->getrev = ata_via_sata_getrev;
ctlr->reset = ata_via_sata_reset;
return 0;
}
/* Legacy SATA/SATA+PATA with SATA registers in BAR(5). */
if (ctlr->chip->max_dma >= ATA_SA150) {
ctlr->r_type2 = SYS_RES_IOPORT;
ctlr->r_rid2 = PCIR_BAR(5);
if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
&ctlr->r_rid2, RF_ACTIVE))) {
ctlr->ch_attach = ata_via_ch_attach;
ctlr->ch_detach = ata_via_ch_detach;
ctlr->reset = ata_via_reset;
}
if (ctlr->chip->cfg2 & VIABAR) {
ctlr->channels = 3;
ctlr->setmode = ata_via_new_setmode;
} else
ctlr->setmode = ata_sata_setmode;
ctlr->getrev = ata_sata_getrev;
return 0;
}
/* prepare for ATA-66 on the 82C686a and 82C596b */
if (ctlr->chip->cfg2 & VIACLK)
pci_write_config(dev, 0x50, 0x030b030b, 4);
/* the southbridge might need the data corruption fix */
if (ctlr->chip->cfg2 & VIABUG)
ata_via_southbridge_fixup(dev);
/* set fifo configuration half'n'half */
pci_write_config(dev, 0x43,
(pci_read_config(dev, 0x43, 1) & 0x90) | 0x2a, 1);
/* set status register read retry */
pci_write_config(dev, 0x44, pci_read_config(dev, 0x44, 1) | 0x08, 1);
/* set DMA read & end-of-sector fifo flush */
pci_write_config(dev, 0x46,
(pci_read_config(dev, 0x46, 1) & 0x0c) | 0xf0, 1);
/* set sector size */
pci_write_config(dev, 0x60, DEV_BSIZE, 2);
pci_write_config(dev, 0x68, DEV_BSIZE, 2);
ctlr->setmode = ata_via_old_setmode;
return 0;
}
static int
ata_via_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);
/* newer SATA chips has resources in one BAR for each channel */
if (ctlr->chip->cfg2 & VIABAR) {
struct resource *r_io;
int i, rid;
ata_pci_dmainit(dev);
rid = PCIR_BAR(ch->unit);
if (!(r_io = bus_alloc_resource_any(device_get_parent(dev),
SYS_RES_IOPORT,
&rid, RF_ACTIVE)))
return ENXIO;
for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
ch->r_io[i].res = r_io;
ch->r_io[i].offset = i;
}
ch->r_io[ATA_CONTROL].res = r_io;
ch->r_io[ATA_CONTROL].offset = 2 + ATA_IOSIZE;
ch->r_io[ATA_IDX_ADDR].res = r_io;
ata_default_registers(dev);
for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
ch->r_io[i].res = ctlr->r_res1;
ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
}
ata_pci_hw(dev);
if (ch->unit >= 2)
return 0;
}
else {
/* setup the usual register normal pci style */
if (ata_pci_ch_attach(dev))
return ENXIO;
}
ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
ch->r_io[ATA_SSTATUS].offset = (ch->unit << ctlr->chip->cfg1);
ch->r_io[ATA_SERROR].res = ctlr->r_res2;
ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << ctlr->chip->cfg1);
ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << ctlr->chip->cfg1);
ch->hw.status = ata_via_status;
ch->flags |= ATA_NO_SLAVE;
ch->flags |= ATA_SATA;
ch->flags |= ATA_PERIODIC_POLL;
ata_sata_scr_write(ch, -1, ATA_SERROR, 0xffffffff);
return 0;
}
static int
ata_via_ch_detach(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
/* newer SATA chips has resources in one BAR for each channel */
if (ctlr->chip->cfg2 & VIABAR) {
int rid;
rid = PCIR_BAR(ch->unit);
bus_release_resource(device_get_parent(dev),
SYS_RES_IOPORT, rid, ch->r_io[ATA_CONTROL].res);
ata_pci_dmafini(dev);
}
else {
/* setup the usual register normal pci style */
if (ata_pci_ch_detach(dev))
return ENXIO;
}
return 0;
}
static void
ata_via_reset(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->cfg2 & VIABAR) && (ch->unit > 1))
ata_generic_reset(dev);
else {
if (ata_sata_phy_reset(dev, -1, 1))
ata_generic_reset(dev);
else
ch->devices = 0;
}
}
static int
ata_via_status(device_t dev)
{
ata_sata_phy_check_events(dev, -1);
return (ata_pci_status(dev));
}
static int
ata_via_new_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);
if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1)) {
int piomode;
static const uint8_t pio_timings[] =
{ 0xa8, 0x65, 0x65, 0x32, 0x20 };
static const uint8_t dma_timings[] =
{ 0xee, 0xe8, 0xe6, 0xe4, 0xe2, 0xe1, 0xe0 };
/* This chip can't do WDMA. */
if (mode >= ATA_WDMA0 && mode < ATA_UDMA0)
mode = ATA_PIO4;
if (mode >= ATA_UDMA0) {
pci_write_config(parent, 0xb3,
dma_timings[mode & ATA_MODE_MASK], 1);
piomode = ATA_PIO4;
} else
piomode = mode;
pci_write_config(parent, 0xab, pio_timings[ata_mode2idx(piomode)], 1);
} else
mode = ata_sata_setmode(dev, target, mode);
return (mode);
}
static int
ata_via_old_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 reg = 0x53 - devno;
int piomode;
static const uint8_t timings[] =
{ 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 };
static const uint8_t modes[][7] = {
{ 0xc2, 0xc1, 0xc0, 0x00, 0x00, 0x00, 0x00 }, /* VIA ATA33 */
{ 0xee, 0xec, 0xea, 0xe9, 0xe8, 0x00, 0x00 }, /* VIA ATA66 */
{ 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0, 0x00 }, /* VIA ATA100 */
{ 0xf7, 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0 } }; /* VIA ATA133 */
mode = min(mode, ctlr->chip->max_dma);
/* Set UDMA timings */
if (mode >= ATA_UDMA0) {
pci_write_config(parent, reg,
modes[ctlr->chip->cfg1][mode & ATA_MODE_MASK], 1);
piomode = ATA_PIO4;
} else {
pci_write_config(parent, reg, 0x8b, 1);
piomode = mode;
}
/* Set WDMA/PIO timings */
pci_write_config(parent, reg - 0x08,timings[ata_mode2idx(piomode)], 1);
return (mode);
}
static void
ata_via_southbridge_fixup(device_t dev)
{
device_t *children;
int nchildren, i;
if (device_get_children(device_get_parent(dev), &children, &nchildren))
return;
for (i = 0; i < nchildren; i++) {
if (pci_get_devid(children[i]) == ATA_VIA8363 ||
pci_get_devid(children[i]) == ATA_VIA8371 ||
pci_get_devid(children[i]) == ATA_VIA8662 ||
pci_get_devid(children[i]) == ATA_VIA8361) {
u_int8_t reg76 = pci_read_config(children[i], 0x76, 1);
if ((reg76 & 0xf0) != 0xd0) {
device_printf(dev,
"Correcting VIA config for southbridge data corruption bug\n");
pci_write_config(children[i], 0x75, 0x80, 1);
pci_write_config(children[i], 0x76, (reg76 & 0x0f) | 0xd0, 1);
}
break;
}
}
free(children, M_TEMP);
}
static int
ata_via_sata_ch_attach(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
if (ata_pci_ch_attach(dev))
return ENXIO;
if (ch->unit == 0) {
ch->hw.status = ata_via_sata_status;
ch->hw.pm_read = ata_via_sata_scr_read;
ch->hw.pm_write = ata_via_sata_scr_write;
ch->flags |= ATA_PERIODIC_POLL;
ch->flags |= ATA_SATA;
ata_sata_scr_write(ch, 0, ATA_SERROR, 0xffffffff);
ata_sata_scr_write(ch, 1, ATA_SERROR, 0xffffffff);
}
return (0);
}
static int
ata_via_sata_getrev(device_t dev, int target)
{
device_t parent = device_get_parent(dev);
struct ata_channel *ch = device_get_softc(dev);
if (ch->unit == 0) {
if (pci_read_config(parent, 0xa0 + target, 1) & 0x10)
return (2);
else
return (1);
}
return (0);
}
static int
ata_via_sata_setmode(device_t dev, int target, int mode)
{
struct ata_channel *ch = device_get_softc(dev);
if (ch->unit == 0)
return (mode);
return (ata_via_old_setmode(dev, target, mode));
}
static void
ata_via_sata_reset(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
int devs;
if (ch->unit == 0) {
devs = ata_sata_phy_reset(dev, 0, 0);
DELAY(10000);
devs += ata_sata_phy_reset(dev, 1, 0);
} else
devs = 1;
if (devs)
ata_generic_reset(dev);
else
ch->devices = 0;
}
static int
ata_via_sata_scr_read(device_t dev, int port, int reg, u_int32_t *result)
{
device_t parent;
uint32_t val;
parent = device_get_parent(dev);
port = (port == 1) ? 1 : 0;
switch (reg) {
case ATA_SSTATUS:
val = pci_read_config(parent, 0xa0 + port, 1);
*result = val & 0x03;
if (*result != ATA_SS_DET_NO_DEVICE) {
if (val & 0x04)
*result |= ATA_SS_IPM_PARTIAL;
else if (val & 0x08)
*result |= ATA_SS_IPM_SLUMBER;
else
*result |= ATA_SS_IPM_ACTIVE;
if (val & 0x10)
*result |= ATA_SS_SPD_GEN2;
else
*result |= ATA_SS_SPD_GEN1;
}
break;
case ATA_SERROR:
*result = pci_read_config(parent, 0xa8 + port * 4, 4);
break;
case ATA_SCONTROL:
val = pci_read_config(parent, 0xa4 + port, 1);
*result = 0;
if (val & 0x01)
*result |= ATA_SC_DET_RESET;
if (val & 0x02)
*result |= ATA_SC_DET_DISABLE;
if (val & 0x04)
*result |= ATA_SC_IPM_DIS_PARTIAL;
if (val & 0x08)
*result |= ATA_SC_IPM_DIS_SLUMBER;
break;
default:
return (EINVAL);
}
return (0);
}
static int
ata_via_sata_scr_write(device_t dev, int port, int reg, u_int32_t value)
{
device_t parent;
uint32_t val;
parent = device_get_parent(dev);
port = (port == 1) ? 1 : 0;
switch (reg) {
case ATA_SERROR:
pci_write_config(parent, 0xa8 + port * 4, value, 4);
break;
case ATA_SCONTROL:
val = 0;
if (value & ATA_SC_DET_RESET)
val |= 0x01;
if (value & ATA_SC_DET_DISABLE)
val |= 0x02;
if (value & ATA_SC_IPM_DIS_PARTIAL)
val |= 0x04;
if (value & ATA_SC_IPM_DIS_SLUMBER)
val |= 0x08;
pci_write_config(parent, 0xa4 + port, val, 1);
break;
default:
return (EINVAL);
}
return (0);
}
static int
ata_via_sata_status(device_t dev)
{
ata_sata_phy_check_events(dev, 0);
ata_sata_phy_check_events(dev, 1);
return (ata_pci_status(dev));
}
ATA_DECLARE_DRIVER(ata_via);