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freebsd-dev/sys/dev/ata/chipsets/ata-via.c
Dimitry Andric 29658c96ce Remove duplicate const specifiers in many drivers (I hope I got all of 
them, please let me know if not).  Most of these are of the form:

static const struct bzzt_type {
	[...list of members...]
} const bzzt_devs[] = {
	[...list of initializers...]
};

The second const is unnecessary, as arrays cannot be modified anyway,
and if the elements are const, the whole thing is const automatically
(e.g. it is placed in .rodata).

I have verified this does not change the binary output of a full kernel
build (except for build timestamps embedded in the object files).

Reviewed by:	yongari, marius
MFC after:	1 week
2012-11-05 19:16:27 +00:00

559 lines
16 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_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 VIAAHCI 0x08
#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" },
{ ATA_VIA8251, 0x00, 0, VIAAHCI, ATA_SA300, "8251" },
{ 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_DEFAULT);
}
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;
/* AHCI SATA */
if (ctlr->chip->cfg2 & VIAAHCI) {
if (ata_ahci_chipinit(dev) != ENXIO)
return (0);
}
/* 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);
MODULE_DEPEND(ata_via, ata_ahci, 1, 1, 1);
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