350 lines
9.9 KiB
C
350 lines
9.9 KiB
C
/*-
|
|
* Copyright (c) 2002 - 2006 Søren Schmidt <sos@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* 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,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 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 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>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_ata.h"
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/ata.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/sema.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <vm/uma.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <isa/isavar.h>
|
|
#include <dev/ata/ata-all.h>
|
|
#include <ata_if.h>
|
|
|
|
/* local vars */
|
|
struct ata_cbus_controller {
|
|
struct resource *io;
|
|
struct resource *ctlio;
|
|
struct resource *bankio;
|
|
struct resource *irq;
|
|
void *ih;
|
|
struct mtx bank_mtx;
|
|
int locked_bank;
|
|
int restart_bank;
|
|
int hardware_bank;
|
|
struct {
|
|
void (*function)(void *);
|
|
void *argument;
|
|
} interrupt[2];
|
|
};
|
|
|
|
/* local prototypes */
|
|
static void ata_cbus_intr(void *);
|
|
static int ata_cbuschannel_banking(device_t dev, int flags);
|
|
|
|
static int
|
|
ata_cbus_probe(device_t dev)
|
|
{
|
|
struct resource *io;
|
|
int rid;
|
|
u_long tmp;
|
|
|
|
/* dont probe PnP devices */
|
|
if (isa_get_vendorid(dev))
|
|
return (ENXIO);
|
|
|
|
/* allocate the ioport range */
|
|
rid = ATA_IOADDR_RID;
|
|
if (!(io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
|
|
ATA_PC98_IOSIZE, RF_ACTIVE)))
|
|
return ENOMEM;
|
|
|
|
/* calculate & set the altport range */
|
|
rid = ATA_PC98_CTLADDR_RID;
|
|
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) {
|
|
bus_set_resource(dev, SYS_RES_IOPORT, rid,
|
|
rman_get_start(io)+ATA_PC98_CTLOFFSET, ATA_CTLIOSIZE);
|
|
}
|
|
|
|
/* calculate & set the bank range */
|
|
rid = ATA_PC98_BANKADDR_RID;
|
|
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) {
|
|
bus_set_resource(dev, SYS_RES_IOPORT, rid,
|
|
ATA_PC98_BANK, ATA_PC98_BANKIOSIZE);
|
|
}
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ata_cbus_attach(device_t dev)
|
|
{
|
|
struct ata_cbus_controller *ctlr = device_get_softc(dev);
|
|
int rid;
|
|
|
|
/* allocate resources */
|
|
rid = ATA_IOADDR_RID;
|
|
if (!(ctlr->io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
|
|
ATA_PC98_IOSIZE, RF_ACTIVE)))
|
|
return ENOMEM;
|
|
|
|
rid = ATA_PC98_CTLADDR_RID;
|
|
if (!(ctlr->ctlio =
|
|
bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
|
|
rman_get_start(ctlr->io) + ATA_PC98_CTLOFFSET, ~0,
|
|
ATA_CTLIOSIZE, RF_ACTIVE))) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
|
|
return ENOMEM;
|
|
}
|
|
|
|
rid = ATA_PC98_BANKADDR_RID;
|
|
if (!(ctlr->bankio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
|
|
ATA_PC98_BANK, ~0,
|
|
ATA_PC98_BANKIOSIZE, RF_ACTIVE))) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
|
|
return ENOMEM;
|
|
}
|
|
|
|
rid = ATA_IRQ_RID;
|
|
if (!(ctlr->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
|
|
RF_ACTIVE | RF_SHAREABLE))) {
|
|
device_printf(dev, "unable to alloc interrupt\n");
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
ATA_PC98_BANKADDR_RID, ctlr->bankio);
|
|
return ENXIO;
|
|
}
|
|
|
|
if ((bus_setup_intr(dev, ctlr->irq, ATA_INTR_FLAGS,
|
|
ata_cbus_intr, ctlr, &ctlr->ih))) {
|
|
device_printf(dev, "unable to setup interrupt\n");
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
ATA_PC98_BANKADDR_RID, ctlr->bankio);
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IRQ_RID, ctlr->irq);
|
|
return ENXIO;
|
|
}
|
|
|
|
mtx_init(&ctlr->bank_mtx, "ATA cbus bank lock", NULL, MTX_DEF);
|
|
ctlr->hardware_bank = -1;
|
|
ctlr->locked_bank = -1;
|
|
ctlr->restart_bank = -1;
|
|
|
|
if (!device_add_child(dev, "ata", 0))
|
|
return ENOMEM;
|
|
if (!device_add_child(dev, "ata", 1))
|
|
return ENOMEM;
|
|
|
|
return bus_generic_attach(dev);
|
|
}
|
|
|
|
static struct resource *
|
|
ata_cbus_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
struct ata_cbus_controller *ctlr = device_get_softc(dev);
|
|
|
|
if (type == SYS_RES_IOPORT) {
|
|
switch (*rid) {
|
|
case ATA_IOADDR_RID:
|
|
return ctlr->io;
|
|
case ATA_CTLADDR_RID:
|
|
return ctlr->ctlio;
|
|
}
|
|
}
|
|
if (type == SYS_RES_IRQ)
|
|
return ctlr->irq;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ata_cbus_setup_intr(device_t dev, device_t child, struct resource *irq,
|
|
int flags, driver_intr_t *intr, void *arg,
|
|
void **cookiep)
|
|
{
|
|
struct ata_cbus_controller *controller = device_get_softc(dev);
|
|
int unit = ((struct ata_channel *)device_get_softc(child))->unit;
|
|
|
|
controller->interrupt[unit].function = intr;
|
|
controller->interrupt[unit].argument = arg;
|
|
*cookiep = controller;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ata_cbus_print_child(device_t dev, device_t child)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(child);
|
|
int retval = 0;
|
|
|
|
retval += bus_print_child_header(dev, child);
|
|
retval += printf(" at bank %d", ch->unit);
|
|
retval += bus_print_child_footer(dev, child);
|
|
return retval;
|
|
}
|
|
|
|
static void
|
|
ata_cbus_intr(void *data)
|
|
{
|
|
struct ata_cbus_controller *ctlr = data;
|
|
struct ata_channel *ch;
|
|
int unit;
|
|
|
|
for (unit = 0; unit < 2; unit++) {
|
|
if (!(ch = ctlr->interrupt[unit].argument))
|
|
continue;
|
|
if (ata_cbuschannel_banking(ch->dev, ATA_LF_WHICH) == unit)
|
|
ctlr->interrupt[unit].function(ch);
|
|
}
|
|
}
|
|
|
|
static device_method_t ata_cbus_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, ata_cbus_probe),
|
|
DEVMETHOD(device_attach, ata_cbus_attach),
|
|
// DEVMETHOD(device_detach, ata_cbus_detach),
|
|
|
|
/* bus methods */
|
|
DEVMETHOD(bus_alloc_resource, ata_cbus_alloc_resource),
|
|
DEVMETHOD(bus_setup_intr, ata_cbus_setup_intr),
|
|
DEVMETHOD(bus_print_child, ata_cbus_print_child),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ata_cbus_driver = {
|
|
"atacbus",
|
|
ata_cbus_methods,
|
|
sizeof(struct ata_cbus_controller),
|
|
};
|
|
|
|
static devclass_t ata_cbus_devclass;
|
|
|
|
DRIVER_MODULE(atacbus, isa, ata_cbus_driver, ata_cbus_devclass, 0, 0);
|
|
|
|
static int
|
|
ata_cbuschannel_probe(device_t dev)
|
|
{
|
|
struct ata_cbus_controller *ctlr = device_get_softc(device_get_parent(dev));
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
device_t *children;
|
|
int count, i;
|
|
|
|
/* find channel number on this controller */
|
|
device_get_children(device_get_parent(dev), &children, &count);
|
|
for (i = 0; i < count; i++) {
|
|
if (children[i] == dev)
|
|
ch->unit = i;
|
|
}
|
|
free(children, M_TEMP);
|
|
|
|
/* setup the resource vectors */
|
|
for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
|
|
ch->r_io[i].res = ctlr->io;
|
|
ch->r_io[i].offset = i << 1;
|
|
}
|
|
ch->r_io[ATA_CONTROL].res = ctlr->ctlio;
|
|
ch->r_io[ATA_CONTROL].offset = 0;
|
|
ch->r_io[ATA_IDX_ADDR].res = ctlr->io;
|
|
ata_default_registers(dev);
|
|
|
|
/* initialize softc for this channel */
|
|
ch->flags |= ATA_USE_16BIT;
|
|
ata_generic_hw(dev);
|
|
return ata_probe(dev);
|
|
}
|
|
|
|
static int
|
|
ata_cbuschannel_banking(device_t dev, int flags)
|
|
{
|
|
struct ata_cbus_controller *ctlr = device_get_softc(device_get_parent(dev));
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
int res;
|
|
|
|
mtx_lock(&ctlr->bank_mtx);
|
|
switch (flags) {
|
|
case ATA_LF_LOCK:
|
|
if (ctlr->locked_bank == -1)
|
|
ctlr->locked_bank = ch->unit;
|
|
if (ctlr->locked_bank == ch->unit) {
|
|
ctlr->hardware_bank = ch->unit;
|
|
ATA_OUTB(ctlr->bankio, 0, ch->unit);
|
|
}
|
|
else
|
|
ctlr->restart_bank = ch->unit;
|
|
break;
|
|
|
|
case ATA_LF_UNLOCK:
|
|
if (ctlr->locked_bank == ch->unit) {
|
|
ctlr->locked_bank = -1;
|
|
if (ctlr->restart_bank != -1) {
|
|
if ((ch = ctlr->interrupt[ctlr->restart_bank].argument)) {
|
|
ctlr->restart_bank = -1;
|
|
mtx_unlock(&ctlr->bank_mtx);
|
|
ata_start(ch->dev);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ATA_LF_WHICH:
|
|
break;
|
|
}
|
|
res = ctlr->locked_bank;
|
|
mtx_unlock(&ctlr->bank_mtx);
|
|
return res;
|
|
}
|
|
|
|
static device_method_t ata_cbuschannel_methods[] = {
|
|
/* device interface */
|
|
DEVMETHOD(device_probe, ata_cbuschannel_probe),
|
|
DEVMETHOD(device_attach, ata_attach),
|
|
DEVMETHOD(device_detach, ata_detach),
|
|
DEVMETHOD(device_suspend, ata_suspend),
|
|
DEVMETHOD(device_resume, ata_resume),
|
|
|
|
/* ATA methods */
|
|
DEVMETHOD(ata_locking, ata_cbuschannel_banking),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ata_cbuschannel_driver = {
|
|
"ata",
|
|
ata_cbuschannel_methods,
|
|
sizeof(struct ata_channel),
|
|
};
|
|
|
|
DRIVER_MODULE(ata, atacbus, ata_cbuschannel_driver, ata_devclass, 0, 0);
|
|
MODULE_DEPEND(ata, ata, 1, 1, 1);
|