NetBSD-5.0.2/sys/dev/cardbus/ahc_cardbus.c
/* $NetBSD: ahc_cardbus.c,v 1.25 2008/06/24 19:44:52 drochner Exp $ */
/*-
* Copyright (c) 2000, 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
*
* TODO:
* - power management
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.25 2008/06/24 19:44:52 drochner Exp $");
#include "opt_ahc_cardbus.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include <dev/pci/pcireg.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/aic7xxx_osm.h>
#include <dev/ic/aic7xxx_inline.h>
#ifndef AHC_CARDBUS_DEFAULT_SCSI_ID
#define AHC_CARDBUS_DEFAULT_SCSI_ID 0x7
#endif
#define AHC_CARDBUS_IOBA 0x10
#define AHC_CARDBUS_MMBA 0x14
struct ahc_cardbus_softc {
struct ahc_softc sc_ahc; /* real AHC */
/* CardBus-specific goo. */
cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */
cardbus_intr_line_t sc_intrline; /* our interrupt line */
cardbustag_t sc_tag;
int sc_cbenable; /* what CardBus access type to enable */
int sc_csr; /* CSR bits */
bus_size_t sc_size;
};
int ahc_cardbus_match(struct device *, struct cfdata *, void *);
void ahc_cardbus_attach(struct device *, struct device *, void *);
int ahc_cardbus_detach(struct device *, int);
int ahc_activate(struct device *self, enum devact act);
CFATTACH_DECL(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, ahc_activate);
int
ahc_cardbus_match(struct device *parent, struct cfdata *match,
void *aux)
{
struct cardbus_attach_args *ca = aux;
if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_ADP &&
CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADP_APA1480)
return (1);
return (0);
}
void
ahc_cardbus_attach(struct device *parent, struct device *self,
void *aux)
{
struct cardbus_attach_args *ca = aux;
struct ahc_cardbus_softc *csc = device_private(self);
struct ahc_softc *ahc = &csc->sc_ahc;
cardbus_devfunc_t ct = ca->ca_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
bus_space_tag_t bst;
bus_space_handle_t bsh;
pcireg_t reg;
u_int sxfrctl1 = 0;
u_char sblkctl;
csc->sc_ct = ct;
csc->sc_tag = ca->ca_tag;
csc->sc_intrline = ca->ca_intrline;
printf(": Adaptec ADP-1480 SCSI\n");
/*
* Map the device.
*/
csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&bst, &bsh, NULL, &csc->sc_size) == 0) {
csc->sc_cbenable = CARDBUS_MEM_ENABLE;
csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
} else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
csc->sc_cbenable = CARDBUS_IO_ENABLE;
csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
} else {
printf("%s: unable to map device registers\n",
ahc_name(ahc));
return;
}
/* Make sure the right access type is on the CardBus bridge. */
(*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cbenable);
(*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
/* Enable the appropriate bits in the PCI CSR. */
reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG);
reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
reg |= csc->sc_csr;
cardbus_conf_write(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
/*
* Make sure the latency timer is set to some reasonable
* value.
*/
reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG);
if (PCI_LATTIMER(reg) < 0x20) {
reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
reg |= (0x20 << PCI_LATTIMER_SHIFT);
cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg);
}
ahc_set_name(ahc, device_xname(&ahc->sc_dev));
ahc->parent_dmat = ca->ca_dmat;
ahc->tag = bst;
ahc->bsh = bsh;
/*
* ADP-1480 is always an AIC-7860.
*/
ahc->chip = AHC_AIC7860 | AHC_PCI;
ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
if (PCI_REVISION(ca->ca_class) >= 1)
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
if (ahc_softc_init(ahc) != 0)
return;
/*
* On all CardBus adapters, we allow SCB paging.
*/
ahc->flags = AHC_PAGESCBS;
ahc->channel = 'A';
ahc_intr_enable(ahc, FALSE);
ahc_reset(ahc);
/*
* Establish the interrupt.
*/
ahc->ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO,
ahc_intr, ahc);
if (ahc->ih == NULL) {
printf("%s: unable to establish interrupt\n",
ahc_name(ahc));
return;
}
ahc->seep_config = malloc(sizeof(*ahc->seep_config),
M_DEVBUF, M_NOWAIT);
if (ahc->seep_config == NULL)
return;
ahc_check_extport(ahc, &sxfrctl1);
/*
* Take the LED out of diagnostic mode.
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
/*
* I don't know where this is set in the SEEPROM or by the
* BIOS, so we default to 100%.
*/
ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
if (ahc->flags & AHC_USEDEFAULTS) {
int our_id;
/*
* Assume only one connector and always turn
* on termination.
*/
our_id = AHC_CARDBUS_DEFAULT_SCSI_ID;
sxfrctl1 = STPWEN;
ahc_outb(ahc, SCSICONF, our_id | ENSPCHK | RESET_SCSI);
ahc->our_id = our_id;
}
printf("%s: aic7860", ahc_name(ahc));
/*
* Record our termination setting for the
* generic initialization routine.
*/
if ((sxfrctl1 & STPWEN) != 0)
ahc->flags |= AHC_TERM_ENB_A;
if (ahc_init(ahc)) {
ahc_free(ahc);
return;
}
ahc_attach(ahc);
}
int
ahc_cardbus_detach(self, flags)
struct device *self;
int flags;
{
struct ahc_cardbus_softc *csc = device_private(self);
struct ahc_softc *ahc = &csc->sc_ahc;
int rv;
rv = ahc_detach((void *)ahc, flags);
if (rv)
return rv;
if (ahc->ih) {
cardbus_intr_disestablish(csc->sc_ct->ct_cc,
csc->sc_ct->ct_cf, ahc->ih);
ahc->ih = 0;
}
if (csc->sc_cbenable) {
if (csc->sc_cbenable == CARDBUS_MEM_ENABLE)
Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_MMBA,
ahc->tag, ahc->bsh, csc->sc_size);
else if (csc->sc_cbenable == CARDBUS_IO_ENABLE)
Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_IOBA,
ahc->tag, ahc->bsh, csc->sc_size);
csc->sc_cbenable = 0;
}
return (0);
}
int
ahc_activate(struct device *self, enum devact act)
{
struct ahc_cardbus_softc *csc = (void*)self;
struct ahc_softc *ahc = &csc->sc_ahc;
int s, rv = 0;
s = splhigh();
switch (act) {
case DVACT_ACTIVATE:
rv = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
if (ahc->sc_child != NULL)
rv = config_deactivate(ahc->sc_child);
break;
}
splx(s);
return (rv);
}