NetBSD-5.0.2/sys/dev/pci/ahcisata_pci.c
/* $NetBSD: ahcisata_pci.c,v 1.12.4.2 2009/03/30 16:49:25 snj Exp $ */
/*
* Copyright (c) 2006 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.12.4.2 2009/03/30 16:49:25 snj Exp $");
#include <sys/types.h>
#include <sys/malloc.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/disklabel.h>
#include <sys/pmf.h>
#include <uvm/uvm_extern.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciidereg.h>
#include <dev/pci/pciidevar.h>
#include <dev/ic/ahcisatavar.h>
#define AHCI_PCI_QUIRK_FORCE 1 /* force attach */
static const struct pci_quirkdata ahci_pci_quirks[] = {
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_SATA,
AHCI_PCI_QUIRK_FORCE },
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_SATA2,
AHCI_PCI_QUIRK_FORCE },
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_SATA3,
AHCI_PCI_QUIRK_FORCE },
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_SATA4,
AHCI_PCI_QUIRK_FORCE },
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_SATA,
AHCI_PCI_QUIRK_FORCE },
{ PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_AHCI_1,
AHCI_PCI_QUIRK_FORCE },
};
struct ahci_pci_softc {
struct ahci_softc ah_sc;
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
};
static int ahci_pci_match(device_t, cfdata_t, void *);
static void ahci_pci_attach(device_t, device_t, void *);
const struct pci_quirkdata *ahci_pci_lookup_quirkdata(pci_vendor_id_t,
pci_product_id_t);
static bool ahci_pci_resume(device_t PMF_FN_PROTO);
CFATTACH_DECL_NEW(ahcisata_pci, sizeof(struct ahci_pci_softc),
ahci_pci_match, ahci_pci_attach, NULL, NULL);
static int
ahci_pci_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = aux;
bus_space_tag_t regt;
bus_space_handle_t regh;
bus_size_t size;
int ret = 0;
const struct pci_quirkdata *quirks;
quirks = ahci_pci_lookup_quirkdata(PCI_VENDOR(pa->pa_id),
PCI_PRODUCT(pa->pa_id));
/* if wrong class and not forced by quirks, don't match */
if ((PCI_CLASS(pa->pa_class) != PCI_CLASS_MASS_STORAGE ||
((PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_SATA ||
PCI_INTERFACE(pa->pa_class) != PCI_INTERFACE_SATA_AHCI) &&
PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_RAID)) &&
(quirks == NULL || (quirks->quirks & AHCI_PCI_QUIRK_FORCE) == 0))
return 0;
if (pci_mapreg_map(pa, AHCI_PCI_ABAR,
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
®t, ®h, NULL, &size) != 0)
return 0;
if ((PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_SATA &&
PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_SATA_AHCI) ||
(quirks && quirks->quirks & AHCI_PCI_QUIRK_FORCE) ||
(bus_space_read_4(regt, regh, AHCI_GHC) & AHCI_GHC_AE))
ret = 3;
bus_space_unmap(regt, regh, size);
return ret;
}
static void
ahci_pci_attach(device_t parent, device_t self, void *aux)
{
struct pci_attach_args *pa = aux;
struct ahci_pci_softc *psc = device_private(self);
struct ahci_softc *sc = &psc->ah_sc;
bus_size_t size;
char devinfo[256];
const char *intrstr;
pci_intr_handle_t intrhandle;
void *ih;
sc->sc_atac.atac_dev = self;
if (pci_mapreg_map(pa, AHCI_PCI_ABAR,
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->sc_ahcit, &sc->sc_ahcih, NULL, &size) != 0) {
aprint_error_dev(self, "can't map ahci registers\n");
return;
}
psc->sc_pc = pa->pa_pc;
psc->sc_pcitag = pa->pa_tag;
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
aprint_naive(": AHCI disk controller\n");
aprint_normal(": %s\n", devinfo);
if (pci_intr_map(pa, &intrhandle) != 0) {
aprint_error("%s: couldn't map interrupt\n", AHCINAME(sc));
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, ahci_intr, sc);
if (ih == NULL) {
aprint_error("%s: couldn't establish interrupt", AHCINAME(sc));
return;
}
aprint_normal("%s: interrupting at %s\n", AHCINAME(sc),
intrstr ? intrstr : "unknown interrupt");
sc->sc_dmat = pa->pa_dmat;
if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_RAID) {
AHCIDEBUG_PRINT(("%s: RAID mode\n", AHCINAME(sc)), DEBUG_PROBE);
sc->sc_atac_capflags = ATAC_CAP_RAID;
} else {
AHCIDEBUG_PRINT(("%s: SATA mode\n", AHCINAME(sc)), DEBUG_PROBE);
}
ahci_attach(sc);
if (!pmf_device_register(self, NULL, ahci_pci_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
}
static bool
ahci_pci_resume(device_t dv PMF_FN_ARGS)
{
struct ahci_pci_softc *psc = device_private(dv);
struct ahci_softc *sc = &psc->ah_sc;
int s;
s = splbio();
ahci_reset(sc);
ahci_setup_ports(sc);
ahci_reprobe_drives(sc);
ahci_enable_intrs(sc);
splx(s);
return true;
}
const struct pci_quirkdata *
ahci_pci_lookup_quirkdata(pci_vendor_id_t vendor, pci_product_id_t product)
{
int i;
for (i = 0; i < (sizeof ahci_pci_quirks / sizeof ahci_pci_quirks[0]);
i++)
if (vendor == ahci_pci_quirks[i].vendor &&
product == ahci_pci_quirks[i].product)
return (&ahci_pci_quirks[i]);
return (NULL);
}