freebsd-dev/sys/dev/stg/tmc18c30_pci.c
John Baldwin a92cf726f8 Lock the scsi_low code and the drivers which use it along with other
related cleanups:
- Require each driver to initalize a mutex in the scsi_low_softc that
  is shared with the scsi_low code.  This mutex is used for CAM SIMs,
  timers, and interrupt handlers.
- Replace the osdep function switch with direct calls to the relevant
  CAM functions and direct manipulation of timers via callout(9).
- Collapse the CAM-specific scsi_low_osdep_interface substructure
  directly into scsi_low_softc.
- Use bus_*() instead of bus_space_*().
- Return BUS_PROBE_DEFAULT from probe routines instead of 0.
- No need to zero softcs.
- Pass 0ul and ~0ul instead of 0 and ~0 to bus_alloc_resource().
- Spell "dettach" as "detach".
- Remove unused 'dvname' variables.
- De-spl().

Tested by:	no one
2014-11-20 20:50:05 +00:00

135 lines
3.7 KiB
C

/*-
* Copyright (c) 2003 Bob Bishop
* All rights reserved.
* [Ported for FreeBSD]
* Copyright (c) 2000
* Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
* All rights reserved.
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1996, 1997, 1998
* NetBSD/pc98 porting staff. All rights reserved.
* Copyright (c) 1996, 1997, 1998
* Naofumi HONDA. All rights reserved.
* Copyright (c) 1996, 1997, 1998
* Kouichi Matsuda. 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.
* 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.
* 3. 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 ``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 <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <cam/scsi/scsi_low.h>
#include <dev/stg/tmc18c30reg.h>
#include <dev/stg/tmc18c30var.h>
#include <dev/stg/tmc18c30.h>
static struct _pcsid
{
u_int32_t type;
const char *desc;
} pci_ids[] = {
{ 0x00001036, "Adaptec AHA-2920/A,Future Domain TMC-18XX/3260" },
{ 0x00000000, NULL }
};
static int
stg_pci_probe(device_t dev)
{
u_int32_t type = pci_get_devid(dev);
struct _pcsid *stg = pci_ids;
while (stg->type && stg->type != type)
++stg;
if (stg->desc) {
device_set_desc(dev, stg->desc);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
stg_pci_attach(device_t dev)
{
struct stg_softc *sc = device_get_softc(dev);
int error;
sc->port_rid = PCIR_BAR(0);
sc->irq_rid = 0;
error = stg_alloc_resource(dev);
if (error) {
return(error);
}
/* XXXX remove INTR_ENTROPY below for MFC */
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM | INTR_ENTROPY |
INTR_MPSAFE, NULL, stg_intr, sc, &sc->stg_intrhand);
if (error) {
stg_release_resource(dev);
return(error);
}
if (stg_attach(dev) == 0) {
stg_release_resource(dev);
return(ENXIO);
}
return(0);
}
static device_method_t stg_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, stg_pci_probe),
DEVMETHOD(device_attach, stg_pci_attach),
DEVMETHOD(device_detach, stg_detach),
{ 0, 0 }
};
static driver_t stg_pci_driver = {
"stg",
stg_pci_methods,
sizeof(struct stg_softc),
};
DRIVER_MODULE(stg, pci, stg_pci_driver, stg_devclass, 0, 0);
MODULE_DEPEND(stg, scsi_low, 1, 1, 1);
MODULE_DEPEND(stg, pci, 1, 1, 1);