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NetBSD/sys/dev/pci/acardide.c

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/* $NetBSD: acardide.c,v 1.10 2004/08/13 03:12:59 thorpej Exp $ */
/*
* Copyright (c) 2001 Izumi Tsutsui.
*
* 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. 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_acard_reg.h>
static void acard_chip_map(struct pciide_softc*, struct pci_attach_args*);
static void acard_setup_channel(struct wdc_channel*);
#if 0 /* XXX !! */
static int acard_pci_intr(void *);
#endif
static int acardide_match(struct device *, struct cfdata *, void *);
static void acardide_attach(struct device *, struct device *, void *);
CFATTACH_DECL(acardide, sizeof(struct pciide_softc),
acardide_match, acardide_attach, NULL, NULL);
static const struct pciide_product_desc pciide_acard_products[] = {
{ PCI_PRODUCT_ACARD_ATP850U,
0,
"Acard ATP850U Ultra33 IDE Controller",
acard_chip_map,
},
{ PCI_PRODUCT_ACARD_ATP860,
0,
"Acard ATP860 Ultra66 IDE Controller",
acard_chip_map,
},
{ PCI_PRODUCT_ACARD_ATP860A,
0,
"Acard ATP860-A Ultra66 IDE Controller",
acard_chip_map,
},
{ PCI_PRODUCT_ACARD_ATP865,
0,
"Acard ATP865 Ultra100 IDE Controller",
acard_chip_map,
},
{ PCI_PRODUCT_ACARD_ATP865A,
0,
"Acard ATP865-A Ultra100 IDE Controller",
acard_chip_map,
},
{ 0,
0,
NULL,
NULL
}
};
static int
acardide_match(struct device *parent, struct cfdata *match, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ACARD) {
if (pciide_lookup_product(pa->pa_id, pciide_acard_products))
return (2);
}
return (0);
}
static void
acardide_attach(struct device *parent, struct device *self, void *aux)
{
struct pci_attach_args *pa = aux;
struct pciide_softc *sc = (struct pciide_softc *)self;
pciide_common_attach(sc, pa,
pciide_lookup_product(pa->pa_id, pciide_acard_products));
}
#define ACARD_IS_850(sc) \
((sc)->sc_pp->ide_product == PCI_PRODUCT_ACARD_ATP850U)
static void
acard_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
int i;
pcireg_t interface;
bus_size_t cmdsize, ctlsize;
if (pciide_chipen(sc, pa) == 0)
return;
/*
* when the chip is in native mode it identifies itself as a
* 'misc mass storage'. Fake interface in this case.
*/
if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) {
interface = PCI_INTERFACE(pa->pa_class);
} else {
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_dev.dv_xname);
pciide_mapreg_dma(sc, pa);
aprint_normal("\n");
sc->sc_wdcdev.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA | WDC_CAPABILITY_UDMA;
sc->sc_wdcdev.irqack = pciide_irqack;
}
sc->sc_wdcdev.PIO_cap = 4;
sc->sc_wdcdev.DMA_cap = 2;
switch (sc->sc_pp->ide_product) {
case PCI_PRODUCT_ACARD_ATP860:
case PCI_PRODUCT_ACARD_ATP860A:
sc->sc_wdcdev.UDMA_cap = 4;
break;
case PCI_PRODUCT_ACARD_ATP865:
case PCI_PRODUCT_ACARD_ATP865A:
sc->sc_wdcdev.UDMA_cap = 5;
break;
default:
sc->sc_wdcdev.UDMA_cap = 2;
break;
}
sc->sc_wdcdev.set_modes = acard_setup_channel;
sc->sc_wdcdev.channels = sc->wdc_chanarray;
sc->sc_wdcdev.nchannels = 2;
for (i = 0; i < sc->sc_wdcdev.nchannels; i++) {
cp = &sc->pciide_channels[i];
if (pciide_chansetup(sc, i, interface) == 0)
continue;
pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
pciide_pci_intr);
}
if (!ACARD_IS_850(sc)) {
u_int32_t reg;
reg = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL);
reg &= ~ATP860_CTRL_INT;
pci_conf_write(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL, reg);
}
}
static void
acard_setup_channel(struct wdc_channel *chp)
{
struct ata_drive_datas *drvp;
struct pciide_channel *cp = (struct pciide_channel*)chp;
struct pciide_softc *sc = (struct pciide_softc *)cp->wdc_channel.ch_wdc;
struct wdc_softc *wdc = &sc->sc_wdcdev;
int channel = chp->ch_channel;
int drive;
u_int32_t idetime, udma_mode;
u_int32_t idedma_ctl;
/* setup DMA if needed */
pciide_channel_dma_setup(cp);
if (ACARD_IS_850(sc)) {
idetime = 0;
udma_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP850_UDMA);
udma_mode &= ~ATP850_UDMA_MASK(channel);
} else {
idetime = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP860_IDETIME);
idetime &= ~ATP860_SETTIME_MASK(channel);
udma_mode = pci_conf_read(sc->sc_pc, sc->sc_tag, ATP860_UDMA);
udma_mode &= ~ATP860_UDMA_MASK(channel);
/* check 80 pins cable */
if ((chp->ch_drive[0].drive_flags & DRIVE_UDMA) ||
(chp->ch_drive[1].drive_flags & DRIVE_UDMA)) {
if (pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL)
& ATP860_CTRL_80P(chp->ch_channel)) {
if (chp->ch_drive[0].UDMA_mode > 2)
chp->ch_drive[0].UDMA_mode = 2;
if (chp->ch_drive[1].UDMA_mode > 2)
chp->ch_drive[1].UDMA_mode = 2;
}
}
}
idedma_ctl = 0;
/* Per drive settings */
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 ((wdc->cap & WDC_CAPABILITY_UDMA) &&
(drvp->drive_flags & DRIVE_UDMA)) {
/* use Ultra/DMA */
if (ACARD_IS_850(sc)) {
idetime |= ATP850_SETTIME(drive,
acard_act_udma[drvp->UDMA_mode],
acard_rec_udma[drvp->UDMA_mode]);
udma_mode |= ATP850_UDMA_MODE(channel, drive,
acard_udma_conf[drvp->UDMA_mode]);
} else {
idetime |= ATP860_SETTIME(channel, drive,
acard_act_udma[drvp->UDMA_mode],
acard_rec_udma[drvp->UDMA_mode]);
udma_mode |= ATP860_UDMA_MODE(channel, drive,
acard_udma_conf[drvp->UDMA_mode]);
}
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
} else if ((wdc->cap & WDC_CAPABILITY_DMA) &&
(drvp->drive_flags & DRIVE_DMA)) {
/* use Multiword DMA */
drvp->drive_flags &= ~DRIVE_UDMA;
if (ACARD_IS_850(sc)) {
idetime |= ATP850_SETTIME(drive,
acard_act_dma[drvp->DMA_mode],
acard_rec_dma[drvp->DMA_mode]);
} else {
idetime |= ATP860_SETTIME(channel, drive,
acard_act_dma[drvp->DMA_mode],
acard_rec_dma[drvp->DMA_mode]);
}
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
} else {
/* PIO only */
drvp->drive_flags &= ~(DRIVE_UDMA | DRIVE_DMA);
if (ACARD_IS_850(sc)) {
idetime |= ATP850_SETTIME(drive,
acard_act_pio[drvp->PIO_mode],
acard_rec_pio[drvp->PIO_mode]);
} else {
idetime |= ATP860_SETTIME(channel, drive,
acard_act_pio[drvp->PIO_mode],
acard_rec_pio[drvp->PIO_mode]);
}
pci_conf_write(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL,
pci_conf_read(sc->sc_pc, sc->sc_tag, ATP8x0_CTRL)
| ATP8x0_CTRL_EN(channel));
}
}
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);
}
if (ACARD_IS_850(sc)) {
pci_conf_write(sc->sc_pc, sc->sc_tag,
ATP850_IDETIME(channel), idetime);
pci_conf_write(sc->sc_pc, sc->sc_tag, ATP850_UDMA, udma_mode);
} else {
pci_conf_write(sc->sc_pc, sc->sc_tag, ATP860_IDETIME, idetime);
pci_conf_write(sc->sc_pc, sc->sc_tag, ATP860_UDMA, udma_mode);
}
}
#if 0 /* XXX !! */
static int
acard_pci_intr(void *arg)
{
struct pciide_softc *sc = arg;
struct pciide_channel *cp;
struct wdc_channel *wdc_cp;
int rv = 0;
int dmastat, i, crv;
for (i = 0; i < sc->sc_wdcdev.nchannels; i++) {
cp = &sc->pciide_channels[i];
dmastat = bus_space_read_1(sc->sc_dma_iot,
cp->dma_iohs[IDEDMA_CTL], 0);
if ((dmastat & IDEDMA_CTL_INTR) == 0)
continue;
wdc_cp = &cp->wdc_channel;
if ((wdc_cp->ch_flags & WDCF_IRQ_WAIT) == 0) {
(void)wdcintr(wdc_cp);
bus_space_write_1(sc->sc_dma_iot,
cp->dma_iohs[IDEDMA_CTL], 0, dmastat);
continue;
}
crv = wdcintr(wdc_cp);
if (crv == 0) {
printf("%s:%d: bogus intr\n",
sc->sc_wdcdev.sc_dev.dv_xname, i);
bus_space_write_1(sc->sc_dma_iot,
cp->dma_iohs[IDEDMA_CTL], 0, dmastat);
} else if (crv == 1)
rv = 1;
else if (rv == 0)
rv = crv;
}
return rv;
}
#endif
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