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/* $OpenBSD: rtsx_pci.c,v 1.3 2013/01/05 15:42:44 stsp Exp $ */
/*
* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
* Copyright (c) 2012 Stefan Sperling <stsp@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/device.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/rtsxreg.h>
#include <dev/ic/rtsxvar.h>
#include <dev/sdmmc/sdmmcvar.h>
#define RTSX_PCI_BAR 0x10
struct rtsx_pci_softc {
struct rtsx_softc sc;
void *sc_ih;
};
int rtsx_pci_match(struct device *, void *, void *);
void rtsx_pci_attach(struct device *, struct device *, void *);
struct cfattach rtsx_pci_ca = {
sizeof(struct rtsx_pci_softc), rtsx_pci_match, rtsx_pci_attach,
NULL, rtsx_activate
};
int
rtsx_pci_match(struct device *parent, void *match, void *aux)
{
struct pci_attach_args *pa = aux;
/*
* Explicitly match the UNDEFINED device class only. Some RTS5902
* devices advertise a SYSTEM/SDHC class in addition to the UNDEFINED
* device class. Let sdhc(4) handle the SYSTEM/SDHC ones.
*/
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5209 &&
PCI_CLASS(pa->pa_class) == PCI_CLASS_UNDEFINED)
return 1;
return 0;
}
void
rtsx_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct rtsx_pci_softc *sc = (struct rtsx_pci_softc *)self;
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
char const *intrstr;
bus_space_tag_t iot;
bus_space_handle_t ioh;
bus_size_t size;
if ((pci_conf_read(pa->pa_pc, pa->pa_tag, RTSX_CFG_PCI)
& RTSX_CFG_ASIC) != 0) {
printf("%s: no asic\n", sc->sc.sc_dev.dv_xname);
return;
}
if (pci_intr_map_msi(pa, &ih) && pci_intr_map(pa, &ih)) {
printf(": can't map interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih);
sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_SDMMC,
rtsx_intr, sc, sc->sc.sc_dev.dv_xname);
if (sc->sc_ih == NULL) {
printf(": can't establish interrupt\n");
return;
}
printf(": %s\n", intrstr);
if (pci_mem_find(pa->pa_pc, pa->pa_tag, RTSX_PCI_BAR,
NULL, NULL, NULL) != 0) {
printf("%s: can't find registers\n", sc->sc.sc_dev.dv_xname);
return;
}
if (pci_mapreg_map(pa, RTSX_PCI_BAR, PCI_MAPREG_TYPE_MEM, 0,
&iot, &ioh, NULL, &size, 0)) {
printf("%s: can't map registers\n", sc->sc.sc_dev.dv_xname);
return;
}
pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);
if (rtsx_attach(&sc->sc, iot, ioh, size, pa->pa_dmat) != 0)
printf("%s: can't initialize chip\n", sc->sc.sc_dev.dv_xname);
}
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