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freebsd/sys/dev/idt/idt_pci.c

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/*
* Copyright (c) 2000, 2001 Richard Hodges and Matriplex, inc.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Matriplex, inc.
* 4. 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.
*
******************************************************************************
*
* This driver is derived from the Nicstar driver by Mark Tinguely, and
* some of the original driver still exists here. Those portions are...
* Copyright (c) 1996, 1997, 1998, 1999 Mark Tinguely
* All rights reserved.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/module.h>
#include <machine/bus_memio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netatm/port.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_cm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_stack.h>
#include <netatm/atm_pcb.h>
#include <netatm/atm_var.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/idt/idtreg.h>
#include <dev/idt/idtvar.h>
#define IDT_VID 0x111d
#define IDT_NICSTAR_DID 0x0001
struct pci_type {
u_int16_t pci_vid;
u_int16_t pci_did;
char * pci_name;
} pci_devs[] = {
{ IDT_VID, IDT_NICSTAR_DID, "IDT IDT77201/211 NICStAR ATM Adapter" },
{ 0, 0, NULL }
};
uma_zone_t idt_nif_zone;
uma_zone_t idt_vcc_zone;
static int idt_probe (device_t);
static int idt_attach (device_t);
static int idt_detach (device_t);
static int idt_shutdown (device_t);
static void idt_free (device_t);
static int idt_modevent (module_t, int, void *);
static int
idt_probe(device_t dev)
{
struct pci_type *t = pci_devs;
while(t->pci_name != NULL) {
if ((pci_get_vendor(dev) == t->pci_vid) &&
(pci_get_device(dev) == t->pci_did)) {
device_set_desc(dev, t->pci_name);
return(0);
}
t++;
}
return(ENXIO);
}
/******************************************************************************
*
* Attach device
*
* Date first: 11/14/2000 last: 06/10/2001
*/
static int
idt_attach(device_t dev)
{
struct idt_softc *sc;
int error;
sc = device_get_softc(dev);
sc->dev = dev;
error = 0;
pci_enable_busmaster(dev);
/* count = 2 (times 32 PCI clocks) */
pci_write_config(dev, PCIR_LATTIMER, 0x20, 1);
/* Map IDT registers */
sc->mem_rid = 0x14;
sc->mem_type = SYS_RES_MEMORY;
sc->mem = bus_alloc_resource(dev, sc->mem_type, &sc->mem_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->mem == NULL) {
device_printf(dev, "could not map registers.\n");
error = ENXIO;
goto fail;
}
sc->bustag = rman_get_bustag(sc->mem);
sc->bushandle = rman_get_bushandle(sc->mem);
/* Map interrupt */
sc->irq_rid = 0;
sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
if (sc->irq == NULL) {
device_printf(dev, "could not map interrupt.\n");
error = ENXIO;
goto fail;
}
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, nicstar_intr,
sc, &sc->irq_ih);
if (error) {
device_printf(dev, "could not setup irq.\n");
error = ENXIO;
goto fail;
}
sc->virt_baseaddr = (vm_offset_t)rman_get_virtual(sc->mem);
sc->cmd_reg = sc->virt_baseaddr + REGCMD; /* old reg */
sc->stat_reg = sc->virt_baseaddr + REGSTAT; /* old reg */
sc->reg_cmd = (u_long *)(sc->virt_baseaddr + REGCMD);
sc->reg_stat = (u_long *)(sc->virt_baseaddr + REGSTAT);
sc->reg_cfg = (u_long *)(sc->virt_baseaddr + REGCFG);
sc->reg_data = (u_long *)(sc->virt_baseaddr + 0);
sc->reg_tsqh = (u_long *)(sc->virt_baseaddr + REGTSQH);
sc->reg_gp = (u_long *)(sc->virt_baseaddr + REGGP);
sc->pci_rev = pci_get_revid(dev);
sc->timer_wrap = 0;
callout_handle_init(&sc->ch);
phys_init(sc); /* initialize the hardware */
nicstar_init(sc); /* allocate and initialize */
error = idt_harp_init(sc);
if (error)
goto fail;
return (0);
fail:
idt_free(dev);
return (error);
}
/******************************************************************************
*
* Detach device
*
* Date first: 11/14/2000 last: 11/14/2000
*/
static int
idt_detach(device_t dev)
{
struct idt_softc *sc;
int error;
sc = device_get_softc(dev);
error = 0;
/*
* De-Register this interface with ATM core services
*/
error = atm_physif_deregister(&sc->iu_cmn);
idt_device_stop(sc); /* Stop the device */
/*
* Lock out all device interupts.
*/
DEVICE_LOCK(&sc->iu_cmn);
idt_free(dev);
idt_release_mem(sc);
DEVICE_UNLOCK(&sc->iu_cmn);
return (error);
}
/******************************************************************************
*
* Shutdown device
*
* Date first: 11/14/2000 last: 11/14/2000
*/
static int
idt_shutdown(device_t dev)
{
struct idt_softc *sc;
sc = device_get_softc(dev);
idt_device_stop(sc); /* Stop the device */
return (0);
}
static void
idt_free (device_t dev)
{
struct idt_softc *sc;
sc = device_get_softc(dev);
if (sc->irq_ih)
bus_teardown_intr(dev, sc->irq, sc->irq_ih);
if (sc->irq)
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
if (sc->mem)
bus_release_resource(dev, sc->mem_type, sc->mem_rid, sc->mem);
return;
}
static int
idt_modevent (module_t mod, int type, void *data)
{
int error;
error = 0;
switch (type) {
case MOD_LOAD:
idt_nif_zone = uma_zcreate("idt nif",
sizeof(struct atm_nif),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
if (idt_nif_zone == NULL)
panic("hfa_modevent:uma_zcreate nif");
uma_zone_set_max(idt_nif_zone, 20);
idt_vcc_zone = uma_zcreate("idt vcc",
sizeof(Idt_vcc),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
if (idt_vcc_zone == NULL)
panic("hfa_modevent: uma_zcreate vcc");
uma_zone_set_max(idt_vcc_zone, 100);
break;
case MOD_UNLOAD:
uma_zdestroy(idt_nif_zone);
uma_zdestroy(idt_vcc_zone);
break;
default:
break;
}
return (error);
}
static device_method_t idt_methods[] = {
DEVMETHOD(device_probe, idt_probe),
DEVMETHOD(device_attach, idt_attach),
DEVMETHOD(device_detach, idt_detach),
DEVMETHOD(device_shutdown, idt_shutdown),
{0, 0}
};
static driver_t idt_driver = {
"idt",
idt_methods,
sizeof(struct idt_softc)
};
static devclass_t idt_devclass;
DRIVER_MODULE(idt, pci, idt_driver, idt_devclass, idt_modevent, 0);
MODULE_VERSION(idt, 1);
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