NetBSD-5.0.2/sys/dev/pci/svwsata.c
/* $NetBSD: svwsata.c,v 1.10 2008/03/18 20:46:37 cube Exp $ */
/*
* Copyright (c) 2005 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: svwsata.c,v 1.10 2008/03/18 20:46:37 cube Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <dev/ata/atareg.h>
#include <dev/ata/satareg.h>
#include <dev/ata/satavar.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_svwsata_reg.h>
static int svwsata_match(device_t, cfdata_t, void *);
static void svwsata_attach(device_t, device_t, void *);
static void svwsata_chip_map(struct pciide_softc *, struct pci_attach_args *);
static void svwsata_mapreg_dma(struct pciide_softc *, struct pci_attach_args *);
static void svwsata_mapchan(struct pciide_channel *);
CFATTACH_DECL_NEW(svwsata, sizeof(struct pciide_softc),
svwsata_match, svwsata_attach, NULL, NULL);
static const struct pciide_product_desc pciide_svwsata_products[] = {
{ PCI_PRODUCT_SERVERWORKS_K2_SATA,
0,
"ServerWorks K2 SATA Controller",
svwsata_chip_map
},
{ PCI_PRODUCT_SERVERWORKS_FRODO4_SATA,
0,
"ServerWorks Frodo4 SATA Controller",
svwsata_chip_map
},
{ PCI_PRODUCT_SERVERWORKS_FRODO8_SATA,
0,
"ServerWorks Frodo8 SATA Controller",
svwsata_chip_map
},
{ PCI_PRODUCT_SERVERWORKS_HT1000_SATA_1,
0,
"ServerWorks HT-1000 SATA Controller",
svwsata_chip_map
},
{ PCI_PRODUCT_SERVERWORKS_HT1000_SATA_2,
0,
"ServerWorks HT-1000 SATA Controller",
svwsata_chip_map
},
{ 0,
0,
NULL,
NULL,
}
};
static int
svwsata_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SERVERWORKS) {
if (pciide_lookup_product(pa->pa_id,
pciide_svwsata_products))
return (2);
}
return (0);
}
static void
svwsata_attach(device_t parent, device_t self, void *aux)
{
struct pci_attach_args *pa = aux;
struct pciide_softc *sc = device_private(self);
sc->sc_wdcdev.sc_atac.atac_dev = self;
pciide_common_attach(sc, pa,
pciide_lookup_product(pa->pa_id, pciide_svwsata_products));
}
static void
svwsata_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
pci_intr_handle_t intrhandle;
pcireg_t interface;
const char *intrstr;
int channel;
if (pciide_chipen(sc, pa) == 0)
return;
/* The 4-port version has a dummy second function. */
if (pci_conf_read(sc->sc_pc, sc->sc_tag,
PCI_MAPREG_START + 0x14) == 0) {
aprint_normal("\n");
return;
}
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x14,
PCI_MAPREG_TYPE_MEM |
PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->sc_ba5_st, &sc->sc_ba5_sh,
NULL, NULL) != 0) {
aprint_error(": unable to map BA5 register space\n");
return;
}
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"bus-master DMA support present");
svwsata_mapreg_dma(sc, pa);
aprint_verbose("\n");
sc->sc_wdcdev.cap = WDC_CAPABILITY_WIDEREGS;
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
sc->sc_wdcdev.irqack = pciide_irqack;
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 = 4;
sc->sc_wdcdev.sc_atac.atac_set_modes = sata_setup_channel;
/* We can use SControl and SStatus to probe for drives. */
sc->sc_wdcdev.sc_atac.atac_probe = wdc_sataprobe;
wdc_allocate_regs(&sc->sc_wdcdev);
/* Map and establish the interrupt handler. */
if(pci_intr_map(pa, &intrhandle) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map native-PCI interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
sc->sc_pci_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO,
pciide_pci_intr, sc);
if (sc->sc_pci_ih != NULL) {
aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"using %s for native-PCI interrupt\n",
intrstr ? intrstr : "unknown interrupt");
} else {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't establish native-PCI interrupt");
if (intrstr != NULL)
aprint_normal(" at %s", intrstr);
aprint_normal("\n");
return;
}
interface = PCIIDE_INTERFACE_BUS_MASTER_DMA |
PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1);
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;
svwsata_mapchan(cp);
}
}
static void
svwsata_mapreg_dma(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *pc;
int chan, reg;
bus_size_t size;
sc->sc_wdcdev.dma_arg = sc;
sc->sc_wdcdev.dma_init = pciide_dma_init;
sc->sc_wdcdev.dma_start = pciide_dma_start;
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
if (device_cfdata(sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags &
PCIIDE_OPTIONS_NODMA) {
aprint_normal(
", but unused (forced off by config file)");
sc->sc_dma_ok = 0;
return;
}
/*
* Slice off a subregion of BA5 for each of the channel's DMA
* registers.
*/
sc->sc_dma_iot = sc->sc_ba5_st;
for (chan = 0; chan < 4; chan++) {
pc = &sc->pciide_channels[chan];
for (reg = 0; reg < IDEDMA_NREGS; reg++) {
size = 4;
if (size > (IDEDMA_SCH_OFFSET - reg))
size = IDEDMA_SCH_OFFSET - reg;
if (bus_space_subregion(sc->sc_ba5_st,
sc->sc_ba5_sh,
(chan << 8) + SVWSATA_DMA + reg,
size, &pc->dma_iohs[reg]) != 0) {
sc->sc_dma_ok = 0;
aprint_normal(", but can't subregion offset "
"%lu size %lu",
(u_long) (chan << 8) + SVWSATA_DMA + reg,
(u_long) size);
return;
}
}
}
/* DMA registers all set up! */
sc->sc_dmat = pa->pa_dmat;
sc->sc_dma_ok = 1;
}
static void
svwsata_mapchan(struct pciide_channel *cp)
{
struct ata_channel *wdc_cp = &cp->ata_channel;
struct pciide_softc *sc = CHAN_TO_PCIIDE(wdc_cp);
struct wdc_regs *wdr = CHAN_TO_WDC_REGS(wdc_cp);
int i;
cp->compat = 0;
cp->ih = sc->sc_pci_ih;
wdr->cmd_iot = sc->sc_ba5_st;
if (bus_space_subregion(sc->sc_ba5_st, sc->sc_ba5_sh,
(wdc_cp->ch_channel << 8) + SVWSATA_TF0,
SVWSATA_TF8 - SVWSATA_TF0, &wdr->cmd_baseioh) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map %s cmd regs\n", cp->name);
goto bad;
}
wdr->ctl_iot = sc->sc_ba5_st;
if (bus_space_subregion(sc->sc_ba5_st, sc->sc_ba5_sh,
(wdc_cp->ch_channel << 8) + SVWSATA_TF8, 4,
&cp->ctl_baseioh) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map %s ctl regs\n", cp->name);
goto bad;
}
wdr->ctl_ioh = cp->ctl_baseioh;
for (i = 0; i < WDC_NREG; i++) {
if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh,
i << 2, i == 0 ? 4 : 1,
&wdr->cmd_iohs[i]) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't subregion %s channel cmd regs\n",
cp->name);
goto bad;
}
}
wdc_init_shadow_regs(wdc_cp);
wdr->data32iot = wdr->cmd_iot;
wdr->data32ioh = wdr->cmd_iohs[0];
wdr->sata_iot = sc->sc_ba5_st;
wdr->sata_baseioh = sc->sc_ba5_sh;
if (bus_space_subregion(wdr->sata_iot, wdr->sata_baseioh,
(wdc_cp->ch_channel << 8) + SVWSATA_SSTATUS, 1,
&wdr->sata_status) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map channel %d sata_status regs\n",
wdc_cp->ch_channel);
goto bad;
}
if (bus_space_subregion(wdr->sata_iot, wdr->sata_baseioh,
(wdc_cp->ch_channel << 8) + SVWSATA_SERROR, 1,
&wdr->sata_error) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map channel %d sata_error regs\n",
wdc_cp->ch_channel);
goto bad;
}
if (bus_space_subregion(wdr->sata_iot, wdr->sata_baseioh,
(wdc_cp->ch_channel << 8) + SVWSATA_SCONTROL, 1,
&wdr->sata_control) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map channel %d sata_control regs\n",
wdc_cp->ch_channel);
goto bad;
}
wdcattach(wdc_cp);
return;
bad:
cp->ata_channel.ch_flags |= ATACH_DISABLED;
}