diff options
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/ahci.c | 114 | ||||
| -rw-r--r-- | sys/dev/pci/files.pci | 7 |
2 files changed, 120 insertions, 1 deletions
diff --git a/sys/dev/pci/ahci.c b/sys/dev/pci/ahci.c new file mode 100644 index 00000000000..8909017a2aa --- /dev/null +++ b/sys/dev/pci/ahci.c @@ -0,0 +1,114 @@ +/* $OpenBSD: ahci.c,v 1.1 2006/12/09 05:10:43 dlg Exp $ */ + +/* + * Copyright (c) 2006 David Gwynne <dlg@openbsd.org> + * + * 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/param.h> +#include <sys/systm.h> +#include <sys/buf.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/device.h> +#include <sys/proc.h> + +#include <machine/bus.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> + +#define AHCI_PCI_BAR 0x24 + +static const struct pci_matchid ahci_devices[] = { + { PCI_VENDOR_JMICRON, PCI_PRODUCT_JMICRON_JMB361 } +}; + +int ahci_match(struct device *, void *, void *); +void ahci_attach(struct device *, struct device *, void *); + +struct ahci_softc { + struct device sc_dev; + + void *sc_ih; + + bus_space_tag_t sc_iot; + bus_space_handle_t sc_ioh; + bus_size_t sc_ios; + bus_dma_tag_t sc_dmat; +}; +#define DEVNAME(_s) ((_s)->sc_dev.dv_xname) + +struct cfattach ahci_ca = { + sizeof(struct ahci_softc), ahci_match, ahci_attach +}; + +struct cfdriver ahci_cd = { + NULL, "ahci", DV_DULL +}; + +int ahci_intr(void *); + + +int +ahci_match(struct device *parent, void *match, void *aux) +{ + return (pci_matchbyid((struct pci_attach_args *)aux, ahci_devices, + sizeof(ahci_devices) / sizeof(ahci_devices[0]))); +} + +void +ahci_attach(struct device *parent, struct device *self, void *aux) +{ + struct ahci_softc *sc = (struct ahci_softc *)self; + struct pci_attach_args *pa = aux; + pcireg_t memtype; + pci_intr_handle_t ih; + const char *intrstr; + + memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHCI_PCI_BAR); + if (pci_mapreg_map(pa, AHCI_PCI_BAR, memtype, 0, &sc->sc_iot, + &sc->sc_ioh, NULL, &sc->sc_ios, 0) != 0) { + printf(": unable to map registers\n"); + return; + } + + if (pci_intr_map(pa, &ih) != 0) { + printf(": unable to map interrupt\n"); + goto unmap; + } + intrstr = pci_intr_string(pa->pa_pc, ih); + sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, + ahci_intr, sc, DEVNAME(sc)); + if (sc->sc_ih == NULL) { + printf(": unable to map interrupt%s%s\n", + intrstr == NULL ? "" : " at ", + intrstr == NULL ? "" : intrstr); + goto unmap; + } + printf(": %s\n", intrstr); + + return; + +unmap: + bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); + sc->sc_ios = 0; +} + +int +ahci_intr(void *arg) +{ + return (0); +} diff --git a/sys/dev/pci/files.pci b/sys/dev/pci/files.pci index 199e4768333..48e2a17e5d3 100644 --- a/sys/dev/pci/files.pci +++ b/sys/dev/pci/files.pci @@ -1,4 +1,4 @@ -# $OpenBSD: files.pci,v 1.221 2006/12/06 20:07:52 martin Exp $ +# $OpenBSD: files.pci,v 1.222 2006/12/09 05:10:43 dlg Exp $ # $NetBSD: files.pci,v 1.20 1996/09/24 17:47:15 christos Exp $ # # Config file and device description for machine-independent PCI code. @@ -79,6 +79,11 @@ device arc: scsi attach arc at pci file dev/pci/arc.c arc +# Advanced Host Controller Interface for Serial ATA +device ahci +attach ahci at pci +file dev/pci/ahci.c ahci + # AMI MegaRAID Express x00/Elite 1500/Express 1x00 RAID Controllers attach ami at pci with ami_pci file dev/pci/ami_pci.c ami_pci |