FreeBSD-5.3/sys/dev/aha/aha_isa.c
/*
* Product specific probe and attach routines for:
* Adaptec 154x.
*
* Copyright (c) 1999-2003 M. Warner Losh
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* Derived from bt isa from end, written by:
*
* Copyright (c) 1998 Justin T. Gibbs
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/aha/aha_isa.c,v 1.29 2004/03/17 17:50:24 njl Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <dev/aha/ahareg.h>
#include <cam/scsi/scsi_all.h>
static struct isa_pnp_id aha_ids[] = {
{ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
{AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
{AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
{AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
{ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
{0}
};
/*
* I/O ports listed in the order enumerated by the card for certain op codes.
*/
static bus_addr_t aha_board_ports[] =
{
0x330,
0x334,
0x230,
0x234,
0x130,
0x134
};
/*
* Check if the device can be found at the port given
*/
static int
aha_isa_probe(device_t dev)
{
/*
* find unit and check we have that many defined
*/
struct aha_softc *aha = device_get_softc(dev);
int error;
u_long port_start;
struct resource *port_res;
int port_rid;
int drq;
int irq;
config_data_t config_data;
aha->dev = dev;
/* Check isapnp ids */
if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
return (ENXIO);
port_rid = 0;
port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
0, ~0, AHA_NREGS, RF_ACTIVE);
if (port_res == NULL)
return (ENXIO);
port_start = rman_get_start(port_res);
aha_alloc(aha, device_get_unit(dev), rman_get_bustag(port_res),
rman_get_bushandle(port_res));
/* See if there is really a card present */
if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
return (ENXIO);
}
/*
* Determine our IRQ, and DMA settings and
* export them to the configuration system.
*/
error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
(uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
if (error != 0) {
device_printf(dev, "Could not determine IRQ or DMA "
"settings for adapter at %#jx. Failing probe\n",
(uintmax_t)port_start);
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
port_res);
return (ENXIO);
}
bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
switch (config_data.dma_chan) {
case DMA_CHAN_5:
drq = 5;
break;
case DMA_CHAN_6:
drq = 6;
break;
case DMA_CHAN_7:
drq = 7;
break;
default:
device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
(uintmax_t)port_start);
return (ENXIO);
}
error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
if (error)
return error;
irq = ffs(config_data.irq) + 8;
error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
return (error);
}
/*
* Attach all the sub-devices we can find
*/
static int
aha_isa_attach(device_t dev)
{
struct aha_softc *aha = device_get_softc(dev);
bus_dma_filter_t *filter;
void *filter_arg;
bus_addr_t lowaddr;
void *ih;
int error;
aha->dev = dev;
aha->portrid = 0;
aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
0, ~0, AHA_NREGS, RF_ACTIVE);
if (!aha->port) {
device_printf(dev, "Unable to allocate I/O ports\n");
return ENOMEM;
}
aha->irqrid = 0;
aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
RF_ACTIVE);
if (!aha->irq) {
device_printf(dev, "Unable to allocate excluse use of irq\n");
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
return ENOMEM;
}
aha->drqrid = 0;
aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
RF_ACTIVE);
if (!aha->drq) {
device_printf(dev, "Unable to allocate drq\n");
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
return ENOMEM;
}
#if 0 /* is the drq ever unset? */
if (dev->id_drq != -1)
isa_dmacascade(dev->id_drq);
#endif
isa_dmacascade(rman_get_start(aha->drq));
/* Allocate our parent dmatag */
filter = NULL;
filter_arg = NULL;
lowaddr = BUS_SPACE_MAXADDR_24BIT;
if (bus_dma_tag_create( /* parent */ NULL,
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ lowaddr,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ filter,
/* filterarg */ filter_arg,
/* maxsize */ BUS_SPACE_MAXSIZE_24BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&aha->parent_dmat) != 0) {
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
return (ENOMEM);
}
if (aha_init(aha)) {
device_printf(dev, "init failed\n");
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
return (ENOMEM);
}
error = aha_attach(aha);
if (error) {
device_printf(dev, "attach failed\n");
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
return (error);
}
error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, aha,
&ih);
if (error) {
device_printf(dev, "Unable to register interrupt handler\n");
aha_free(aha);
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
return (error);
}
return (0);
}
static int
aha_isa_detach(device_t dev)
{
struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
int error;
error = bus_teardown_intr(dev, aha->irq, aha->ih);
if (error) {
device_printf(dev, "failed to unregister interrupt handler\n");
}
bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
error = aha_detach(aha);
if (error) {
device_printf(dev, "detach failed\n");
return (error);
}
aha_free(aha);
return (0);
}
static void
aha_isa_identify(driver_t *driver, device_t parent)
{
int i;
bus_addr_t ioport;
struct aha_softc aha;
int rid;
struct resource *res;
device_t child;
/* Attempt to find an adapter */
for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]);
i++) {
bzero(&aha, sizeof(aha));
ioport = aha_board_ports[i];
/*
* XXX Check to see if we have a hard-wired aha device at
* XXX this port, if so, skip. This should also cover the
* XXX case where we are run multiple times due to, eg,
* XXX kldload/kldunload.
*/
rid = 0;
res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
ioport, ioport, AHA_NREGS, RF_ACTIVE);
if (res == NULL)
continue;
aha_alloc(&aha, -1, rman_get_bustag(res),
rman_get_bushandle(res));
/* See if there is really a card present */
if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
goto not_this_one;
child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
/*
* Could query the board and set IRQ/DRQ, but probe does
* that.
*/
not_this_one:;
bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
aha_free(&aha);
}
}
static device_method_t aha_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, aha_isa_probe),
DEVMETHOD(device_attach, aha_isa_attach),
DEVMETHOD(device_detach, aha_isa_detach),
DEVMETHOD(device_identify, aha_isa_identify),
{ 0, 0 }
};
static driver_t aha_isa_driver = {
"aha",
aha_isa_methods,
sizeof(struct aha_softc),
};
static devclass_t aha_devclass;
DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);