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NetBSD/sys/dev/pci/viaide.c

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/* $NetBSD: viaide.c,v 1.24 2005/02/27 00:27:34 perry Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
*
* 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.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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/param.h>
#include <sys/systm.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciidereg.h>
#include <dev/pci/pciidevar.h>
#include <dev/pci/pciide_apollo_reg.h>
static int via_pcib_match(struct pci_attach_args *);
static void via_chip_map(struct pciide_softc *, struct pci_attach_args *);
static void via_sata_chip_map(struct pciide_softc *,
struct pci_attach_args *);
static void via_setup_channel(struct ata_channel *);
static int viaide_match(struct device *, struct cfdata *, void *);
static void viaide_attach(struct device *, struct device *, void *);
static const struct pciide_product_desc *
viaide_lookup(pcireg_t);
CFATTACH_DECL(viaide, sizeof(struct pciide_softc),
viaide_match, viaide_attach, NULL, NULL);
static const struct pciide_product_desc pciide_amd_products[] = {
{ PCI_PRODUCT_AMD_PBC756_IDE,
0,
"Advanced Micro Devices AMD756 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_AMD_PBC766_IDE,
0,
"Advanced Micro Devices AMD766 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_AMD_PBC768_IDE,
0,
"Advanced Micro Devices AMD768 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_AMD_PBC8111_IDE,
0,
"Advanced Micro Devices AMD8111 IDE Controller",
via_chip_map
},
{ 0,
0,
NULL,
NULL
}
};
static const struct pciide_product_desc pciide_nvidia_products[] = {
{ PCI_PRODUCT_NVIDIA_NFORCE_ATA100,
0,
"NVIDIA nForce IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE2_ATA133,
0,
"NVIDIA nForce2 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE2_400_ATA133,
0,
"NVIDIA nForce2 Ultra 400 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE2_400_SATA,
0,
"NVIDIA nForce2 Ultra 400 Serial ATA Controller",
via_sata_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE3_ATA133,
0,
"NVIDIA nForce3 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE3_250_ATA133,
0,
"NVIDIA nForce3 250 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE3_250_SATA,
0,
"NVIDIA nForce3 250 Serial ATA Controller",
via_sata_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE4_ATA133,
0,
"NVIDIA nForce4 IDE Controller",
via_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE4_SATA1,
0,
"NVIDIA nForce4 Serial ATA Controller",
via_sata_chip_map
},
{ PCI_PRODUCT_NVIDIA_NFORCE4_SATA2,
0,
"NVIDIA nForce4 Serial ATA Controller",
via_sata_chip_map
},
{ 0,
0,
NULL,
NULL
}
};
static const struct pciide_product_desc pciide_via_products[] = {
{ PCI_PRODUCT_VIATECH_VT82C586_IDE,
0,
NULL,
via_chip_map,
},
{ PCI_PRODUCT_VIATECH_VT82C586A_IDE,
0,
NULL,
via_chip_map,
},
{ PCI_PRODUCT_VIATECH_VT6421_RAID,
0,
"VIA Technologies VT6421 Serial RAID Controller",
via_sata_chip_map,
},
{ PCI_PRODUCT_VIATECH_VT8237_SATA,
0,
"VIA Technologies VT8237 SATA Controller",
via_sata_chip_map,
},
{ 0,
0,
NULL,
NULL
}
};
static const struct pciide_product_desc *
viaide_lookup(pcireg_t id)
{
switch (PCI_VENDOR(id)) {
case PCI_VENDOR_VIATECH:
return (pciide_lookup_product(id, pciide_via_products));
case PCI_VENDOR_AMD:
return (pciide_lookup_product(id, pciide_amd_products));
case PCI_VENDOR_NVIDIA:
return (pciide_lookup_product(id, pciide_nvidia_products));
}
return (NULL);
}
static int
viaide_match(struct device *parent, struct cfdata *match, void *aux)
{
struct pci_attach_args *pa = aux;
if (viaide_lookup(pa->pa_id) != NULL)
return (2);
return (0);
}
static void
viaide_attach(struct device *parent, struct device *self, void *aux)
{
struct pci_attach_args *pa = aux;
struct pciide_softc *sc = (struct pciide_softc *)self;
const struct pciide_product_desc *pp;
pp = viaide_lookup(pa->pa_id);
if (pp == NULL)
panic("viaide_attach");
pciide_common_attach(sc, pa, pp);
}
static int
via_pcib_match(struct pci_attach_args *pa)
{
if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA &&
PCI_VENDOR(pa->pa_id) == PCI_VENDOR_VIATECH)
return (1);
return 0;
}
static void
via_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
pcireg_t interface = PCI_INTERFACE(pa->pa_class);
pcireg_t vendor = PCI_VENDOR(pa->pa_id);
int channel;
u_int32_t ideconf;
bus_size_t cmdsize, ctlsize;
pcireg_t pcib_id, pcib_class;
struct pci_attach_args pcib_pa;
if (pciide_chipen(sc, pa) == 0)
return;
switch (vendor) {
case PCI_VENDOR_VIATECH:
/*
* get a PCI tag for the ISA bridge.
*/
if (pci_find_device(&pcib_pa, via_pcib_match) == 0)
goto unknown;
pcib_id = pcib_pa.pa_id;
pcib_class = pcib_pa.pa_class;
aprint_normal("%s: VIA Technologies ",
sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
switch (PCI_PRODUCT(pcib_id)) {
case PCI_PRODUCT_VIATECH_VT82C586_ISA:
aprint_normal("VT82C586 (Apollo VP) ");
if(PCI_REVISION(pcib_class) >= 0x02) {
aprint_normal("ATA33 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 2;
} else {
aprint_normal("controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 0;
}
break;
case PCI_PRODUCT_VIATECH_VT82C596A:
aprint_normal("VT82C596A (Apollo Pro) ");
if (PCI_REVISION(pcib_class) >= 0x12) {
aprint_normal("ATA66 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 4;
} else {
aprint_normal("ATA33 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 2;
}
break;
case PCI_PRODUCT_VIATECH_VT82C686A_ISA:
aprint_normal("VT82C686A (Apollo KX133) ");
if (PCI_REVISION(pcib_class) >= 0x40) {
aprint_normal("ATA100 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 5;
} else {
aprint_normal("ATA66 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 4;
}
break;
case PCI_PRODUCT_VIATECH_VT8231:
aprint_normal("VT8231 ATA100 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 5;
break;
case PCI_PRODUCT_VIATECH_VT8233:
aprint_normal("VT8233 ATA100 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 5;
break;
case PCI_PRODUCT_VIATECH_VT8233A:
aprint_normal("VT8233A ATA133 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
break;
case PCI_PRODUCT_VIATECH_VT8235:
aprint_normal("VT8235 ATA133 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
break;
case PCI_PRODUCT_VIATECH_VT8237:
aprint_normal("VT8237 ATA133 controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
break;
default:
unknown:
aprint_normal("unknown VIA ATA controller\n");
sc->sc_wdcdev.sc_atac.atac_udma_cap = 0;
}
sc->sc_apo_regbase = APO_VIA_REGBASE;
break;
case PCI_VENDOR_AMD:
switch (sc->sc_pp->ide_product) {
case PCI_PRODUCT_AMD_PBC8111_IDE:
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
break;
case PCI_PRODUCT_AMD_PBC766_IDE:
case PCI_PRODUCT_AMD_PBC768_IDE:
sc->sc_wdcdev.sc_atac.atac_udma_cap = 5;
break;
default:
sc->sc_wdcdev.sc_atac.atac_udma_cap = 4;
}
sc->sc_apo_regbase = APO_AMD_REGBASE;
break;
case PCI_VENDOR_NVIDIA:
switch (sc->sc_pp->ide_product) {
case PCI_PRODUCT_NVIDIA_NFORCE_ATA100:
sc->sc_wdcdev.sc_atac.atac_udma_cap = 5;
break;
case PCI_PRODUCT_NVIDIA_NFORCE2_ATA133:
case PCI_PRODUCT_NVIDIA_NFORCE2_400_ATA133:
case PCI_PRODUCT_NVIDIA_NFORCE3_ATA133:
case PCI_PRODUCT_NVIDIA_NFORCE3_250_ATA133:
case PCI_PRODUCT_NVIDIA_NFORCE4_ATA133:
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
break;
}
sc->sc_apo_regbase = APO_NVIDIA_REGBASE;
break;
default:
panic("via_chip_map: unknown vendor");
}
aprint_normal("%s: bus-master DMA support present",
sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
pciide_mapreg_dma(sc, pa);
aprint_normal("\n");
sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA;
sc->sc_wdcdev.irqack = pciide_irqack;
if (sc->sc_wdcdev.sc_atac.atac_udma_cap > 0)
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA;
}
sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
sc->sc_wdcdev.sc_atac.atac_set_modes = via_setup_channel;
sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
wdc_allocate_regs(&sc->sc_wdcdev);
ATADEBUG_PRINT(("via_chip_map: old APO_IDECONF=0x%x, "
"APO_CTLMISC=0x%x, APO_DATATIM=0x%x, APO_UDMA=0x%x\n",
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_IDECONF(sc)),
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_CTLMISC(sc)),
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_DATATIM(sc)),
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_UDMA(sc))),
DEBUG_PROBE);
ideconf = pci_conf_read(sc->sc_pc, sc->sc_tag, APO_IDECONF(sc));
for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
channel++) {
cp = &sc->pciide_channels[channel];
if (pciide_chansetup(sc, channel, interface) == 0)
continue;
if ((ideconf & APO_IDECONF_EN(channel)) == 0) {
aprint_normal("%s: %s channel ignored (disabled)\n",
sc->sc_wdcdev.sc_atac.atac_dev.dv_xname, cp->name);
cp->ata_channel.ch_flags |= ATACH_DISABLED;
continue;
}
pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
pciide_pci_intr);
}
}
static void
via_setup_channel(struct ata_channel *chp)
{
u_int32_t udmatim_reg, datatim_reg;
u_int8_t idedma_ctl;
int mode, drive, s;
struct ata_drive_datas *drvp;
struct atac_softc *atac = chp->ch_atac;
struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
#ifndef PCIIDE_AMD756_ENABLEDMA
int rev = PCI_REVISION(
pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG));
#endif
idedma_ctl = 0;
datatim_reg = pci_conf_read(sc->sc_pc, sc->sc_tag, APO_DATATIM(sc));
udmatim_reg = pci_conf_read(sc->sc_pc, sc->sc_tag, APO_UDMA(sc));
datatim_reg &= ~APO_DATATIM_MASK(chp->ch_channel);
udmatim_reg &= ~APO_UDMA_MASK(chp->ch_channel);
/* setup DMA if needed */
pciide_channel_dma_setup(cp);
for (drive = 0; drive < 2; drive++) {
drvp = &chp->ch_drive[drive];
/* If no drive, skip */
if ((drvp->drive_flags & DRIVE) == 0)
continue;
/* add timing values, setup DMA if needed */
if (((drvp->drive_flags & DRIVE_DMA) == 0 &&
(drvp->drive_flags & DRIVE_UDMA) == 0)) {
mode = drvp->PIO_mode;
goto pio;
}
if ((atac->atac_cap & ATAC_CAP_UDMA) &&
(drvp->drive_flags & DRIVE_UDMA)) {
/* use Ultra/DMA */
s = splbio();
drvp->drive_flags &= ~DRIVE_DMA;
splx(s);
udmatim_reg |= APO_UDMA_EN(chp->ch_channel, drive) |
APO_UDMA_EN_MTH(chp->ch_channel, drive);
switch (PCI_VENDOR(sc->sc_pci_id)) {
case PCI_VENDOR_VIATECH:
if (sc->sc_wdcdev.sc_atac.atac_udma_cap == 6) {
/* 8233a */
udmatim_reg |= APO_UDMA_TIME(
chp->ch_channel,
drive,
via_udma133_tim[drvp->UDMA_mode]);
} else if (sc->sc_wdcdev.sc_atac.atac_udma_cap == 5) {
/* 686b */
udmatim_reg |= APO_UDMA_TIME(
chp->ch_channel,
drive,
via_udma100_tim[drvp->UDMA_mode]);
} else if (sc->sc_wdcdev.sc_atac.atac_udma_cap == 4) {
/* 596b or 686a */
udmatim_reg |= APO_UDMA_CLK66(
chp->ch_channel);
udmatim_reg |= APO_UDMA_TIME(
chp->ch_channel,
drive,
via_udma66_tim[drvp->UDMA_mode]);
} else {
/* 596a or 586b */
udmatim_reg |= APO_UDMA_TIME(
chp->ch_channel,
drive,
via_udma33_tim[drvp->UDMA_mode]);
}
break;
case PCI_VENDOR_AMD:
case PCI_VENDOR_NVIDIA:
udmatim_reg |= APO_UDMA_TIME(chp->ch_channel,
drive, amd7x6_udma_tim[drvp->UDMA_mode]);
break;
}
/* can use PIO timings, MW DMA unused */
mode = drvp->PIO_mode;
} else {
/* use Multiword DMA, but only if revision is OK */
s = splbio();
drvp->drive_flags &= ~DRIVE_UDMA;
splx(s);
#ifndef PCIIDE_AMD756_ENABLEDMA
/*
* The workaround doesn't seem to be necessary
* with all drives, so it can be disabled by
* PCIIDE_AMD756_ENABLEDMA. It causes a hard hang if
* triggered.
*/
if (PCI_VENDOR(sc->sc_pci_id) == PCI_VENDOR_AMD &&
sc->sc_pp->ide_product ==
PCI_PRODUCT_AMD_PBC756_IDE &&
AMD756_CHIPREV_DISABLEDMA(rev)) {
aprint_normal(
"%s:%d:%d: multi-word DMA disabled due "
"to chip revision\n",
sc->sc_wdcdev.sc_atac.atac_dev.dv_xname,
chp->ch_channel, drive);
mode = drvp->PIO_mode;
s = splbio();
drvp->drive_flags &= ~DRIVE_DMA;
splx(s);
goto pio;
}
#endif
/* mode = min(pio, dma+2) */
if (drvp->PIO_mode <= (drvp->DMA_mode + 2))
mode = drvp->PIO_mode;
else
mode = drvp->DMA_mode + 2;
}
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
pio: /* setup PIO mode */
if (mode <= 2) {
drvp->DMA_mode = 0;
drvp->PIO_mode = 0;
mode = 0;
} else {
drvp->PIO_mode = mode;
drvp->DMA_mode = mode - 2;
}
datatim_reg |=
APO_DATATIM_PULSE(chp->ch_channel, drive,
apollo_pio_set[mode]) |
APO_DATATIM_RECOV(chp->ch_channel, drive,
apollo_pio_rec[mode]);
}
if (idedma_ctl != 0) {
/* Add software bits in status register */
bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0,
idedma_ctl);
}
pci_conf_write(sc->sc_pc, sc->sc_tag, APO_DATATIM(sc), datatim_reg);
pci_conf_write(sc->sc_pc, sc->sc_tag, APO_UDMA(sc), udmatim_reg);
ATADEBUG_PRINT(("via_chip_map: APO_DATATIM=0x%x, APO_UDMA=0x%x\n",
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_DATATIM(sc)),
pci_conf_read(sc->sc_pc, sc->sc_tag, APO_UDMA(sc))), DEBUG_PROBE);
}
static void
via_sata_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
pcireg_t interface = PCI_INTERFACE(pa->pa_class);
int channel;
bus_size_t cmdsize, ctlsize;
if (pciide_chipen(sc, pa) == 0)
return;
if (interface == 0) {
ATADEBUG_PRINT(("via_sata_chip_map interface == 0\n"),
DEBUG_PROBE);
interface = PCIIDE_INTERFACE_BUS_MASTER_DMA |
PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1);
}
aprint_normal("%s: bus-master DMA support present",
sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
pciide_mapreg_dma(sc, pa);
aprint_normal("\n");
if (sc->sc_dma_ok) {
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA | ATAC_CAP_DMA;
sc->sc_wdcdev.irqack = pciide_irqack;
}
sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
sc->sc_wdcdev.sc_atac.atac_set_modes = sata_setup_channel;
wdc_allocate_regs(&sc->sc_wdcdev);
for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
channel++) {
cp = &sc->pciide_channels[channel];
if (pciide_chansetup(sc, channel, interface) == 0)
continue;
pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
pciide_pci_intr);
}
}
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