freebsd-skq/sys/dev/aha/aha_isa.c
Pedro F. Giffuni 73a1170a8c sys/dev: use our nitems() macro when it is avaliable through param.h.
No functional change, only trivial cases are done in this sweep,
Drivers that can get further enhancements will be done independently.

Discussed in:	freebsd-current
2016-04-19 23:37:24 +00:00

363 lines
10 KiB
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("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.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;
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;
aha->port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &port_rid,
AHA_NREGS, RF_ACTIVE);
if (aha->port == NULL)
return (ENXIO);
port_start = rman_get_start(aha->port);
aha_alloc(aha);
/* 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, aha->port);
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,
aha->port);
return (ENXIO);
}
bus_release_resource(dev, SYS_RES_IOPORT, port_rid, aha->port);
aha->port = NULL;
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);
int error = ENOMEM;
aha->dev = dev;
aha->portrid = 0;
aha->port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
&aha->portrid, AHA_NREGS, RF_ACTIVE);
if (!aha->port) {
device_printf(dev, "Unable to allocate I/O ports\n");
goto fail;
}
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");
goto fail;
}
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");
goto fail;
}
#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 */
if (bus_dma_tag_create( /* parent */ bus_get_dma_tag(dev),
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_24BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_24BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&aha->parent_dmat) != 0) {
device_printf(dev, "dma tag create failed.\n");
goto fail;
}
if (aha_init(aha)) {
device_printf(dev, "init failed\n");
goto fail;
}
/*
* The 1542A and B look the same. So we guess based on
* the firmware revision. It appears that only rev 0 is on
* the A cards.
*/
if (aha->boardid <= BOARD_1542 && aha->fw_major == 0) {
device_printf(dev, "154xA may not work\n");
aha->ccb_sg_opcode = INITIATOR_SG_CCB;
aha->ccb_ccb_opcode = INITIATOR_CCB;
}
error = aha_attach(aha);
if (error) {
device_printf(dev, "attach failed\n");
goto fail;
}
error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY|
INTR_MPSAFE, NULL, aha_intr, aha, &aha->ih);
if (error) {
device_printf(dev, "Unable to register interrupt handler\n");
aha_detach(aha);
goto fail;
}
return (0);
fail: ;
aha_free(aha);
bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
return (error);
}
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");
error = aha_detach(aha);
if (error) {
device_printf(dev, "detach failed\n");
return (error);
}
aha_free(aha);
bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
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;
device_t child;
/* Attempt to find an adapter */
for (i = 0; i < nitems(aha_board_ports); 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;
aha.port = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
ioport, ioport, AHA_NREGS, RF_ACTIVE);
if (aha.port == NULL)
continue;
aha_alloc(&aha);
/* 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, aha.port);
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);
MODULE_DEPEND(aha, isa, 1, 1, 1);