274 lines
7.0 KiB
C
274 lines
7.0 KiB
C
/* $NetBSD: ahc_cardbus.c,v 1.36 2016/07/14 04:00:45 msaitoh Exp $ */
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/*-
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* Copyright (c) 2000, 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
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*
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* TODO:
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* - power management
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.36 2016/07/14 04:00:45 msaitoh Exp $");
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#include "opt_ahc_cardbus.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/queue.h>
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#include <sys/device.h>
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/pci/pcireg.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/aic7xxx_osm.h>
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#include <dev/ic/aic7xxx_inline.h>
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#ifndef AHC_CARDBUS_DEFAULT_SCSI_ID
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#define AHC_CARDBUS_DEFAULT_SCSI_ID 0x7
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#endif
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#define AHC_CARDBUS_IOBA 0x10
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#define AHC_CARDBUS_MMBA 0x14
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struct ahc_cardbus_softc {
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struct ahc_softc sc_ahc; /* real AHC */
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/* CardBus-specific goo. */
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cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */
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pcitag_t sc_tag;
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int sc_bar;
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pcireg_t sc_csr;
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bus_size_t sc_size;
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};
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int ahc_cardbus_match(device_t, cfdata_t, void *);
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void ahc_cardbus_attach(device_t, device_t, void *);
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int ahc_cardbus_detach(device_t, int);
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CFATTACH_DECL_NEW(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
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ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, NULL);
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int
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ahc_cardbus_match(device_t parent, cfdata_t match, void *aux)
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{
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struct cardbus_attach_args *ca = aux;
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if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_ADP &&
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PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADP_APA1480)
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return (1);
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return (0);
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}
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void
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ahc_cardbus_attach(device_t parent, device_t self, void *aux)
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{
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struct cardbus_attach_args *ca = aux;
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struct ahc_cardbus_softc *csc = device_private(self);
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struct ahc_softc *ahc = &csc->sc_ahc;
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cardbus_devfunc_t ct = ca->ca_ct;
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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pcireg_t reg;
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u_int sxfrctl1 = 0;
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u_char sblkctl;
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ahc->sc_dev = self;
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csc->sc_ct = ct;
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csc->sc_tag = ca->ca_tag;
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printf(": Adaptec ADP-1480 SCSI\n");
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/*
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* Map the device.
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*/
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csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
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if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
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PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
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&bst, &bsh, NULL, &csc->sc_size) == 0) {
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csc->sc_bar = AHC_CARDBUS_MMBA;
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csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
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} else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
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PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
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csc->sc_bar = AHC_CARDBUS_IOBA;
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csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
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} else {
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csc->sc_bar = 0;
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aprint_error("%s: unable to map device registers\n",
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ahc_name(ahc));
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return;
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}
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/* Enable the appropriate bits in the PCI CSR. */
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reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG);
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reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
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reg |= csc->sc_csr;
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Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
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/*
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* Make sure the latency timer is set to some reasonable
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* value.
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*/
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reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_BHLC_REG);
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if (PCI_LATTIMER(reg) < 0x20) {
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reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
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reg |= (0x20 << PCI_LATTIMER_SHIFT);
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Cardbus_conf_write(ct, ca->ca_tag, PCI_BHLC_REG, reg);
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}
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ahc_set_name(ahc, device_xname(ahc->sc_dev));
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ahc->parent_dmat = ca->ca_dmat;
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ahc->tag = bst;
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ahc->bsh = bsh;
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/*
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* ADP-1480 is always an AIC-7860.
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*/
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ahc->chip = AHC_AIC7860 | AHC_PCI;
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ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE;
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ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
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if (PCI_REVISION(ca->ca_class) >= 1)
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ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
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if (ahc_softc_init(ahc) != 0)
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return;
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/*
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* On all CardBus adapters, we allow SCB paging.
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*/
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ahc->flags = AHC_PAGESCBS;
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ahc->channel = 'A';
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ahc_intr_enable(ahc, FALSE);
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ahc_reset(ahc);
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/*
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* Establish the interrupt.
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*/
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ahc->ih = Cardbus_intr_establish(ct, IPL_BIO, ahc_intr, ahc);
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if (ahc->ih == NULL) {
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aprint_error("%s: unable to establish interrupt\n",
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ahc_name(ahc));
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return;
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}
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ahc->seep_config = malloc(sizeof(*ahc->seep_config),
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M_DEVBUF, M_NOWAIT);
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if (ahc->seep_config == NULL)
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return;
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ahc_check_extport(ahc, &sxfrctl1);
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/*
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* Take the LED out of diagnostic mode.
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*/
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sblkctl = ahc_inb(ahc, SBLKCTL);
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ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
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/*
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* I don't know where this is set in the SEEPROM or by the
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* BIOS, so we default to 100%.
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*/
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ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
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if (ahc->flags & AHC_USEDEFAULTS) {
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int our_id;
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/*
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* Assume only one connector and always turn
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* on termination.
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*/
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our_id = AHC_CARDBUS_DEFAULT_SCSI_ID;
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sxfrctl1 = STPWEN;
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ahc_outb(ahc, SCSICONF, our_id | ENSPCHK | RESET_SCSI);
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ahc->our_id = our_id;
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}
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printf("%s: aic7860", ahc_name(ahc));
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/*
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* Record our termination setting for the
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* generic initialization routine.
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*/
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if ((sxfrctl1 & STPWEN) != 0)
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ahc->flags |= AHC_TERM_ENB_A;
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if (ahc_init(ahc)) {
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ahc_free(ahc);
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return;
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}
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ahc_attach(ahc);
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}
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int
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ahc_cardbus_detach(device_t self, int flags)
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{
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struct ahc_cardbus_softc *csc = device_private(self);
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struct ahc_softc *ahc = &csc->sc_ahc;
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int rv;
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rv = ahc_detach(ahc, flags);
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if (rv)
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return rv;
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if (ahc->ih) {
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Cardbus_intr_disestablish(csc->sc_ct, ahc->ih);
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ahc->ih = 0;
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}
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if (csc->sc_bar != 0) {
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Cardbus_mapreg_unmap(csc->sc_ct, csc->sc_bar,
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ahc->tag, ahc->bsh, csc->sc_size);
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csc->sc_bar = 0;
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}
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return (0);
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}
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