| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/dtrace/sdt/@/dev/malo/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/dtrace/sdt/@/dev/malo/if_malo_pci.c |
/*-
* Copyright (c) 2007 Marvell Semiconductor, Inc.
* Copyright (c) 2007 Sam Leffler, Errno Consulting
* Copyright (c) 2008 Weongyo Jeong <weongyo@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.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
#include <sys/cdefs.h>
#ifdef __FreeBSD__
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/malo/if_malo_pci.c 219902 2011-03-23 13:10:15Z jhb $");
#endif
/*
* PCI front-end for the Marvell 88W8335 Wireless LAN controller driver.
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net80211/ieee80211_var.h>
#include <dev/malo/if_malo.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
/*
* PCI glue.
*/
#define MALO_RESOURCE_MAX 2
#define MALO_MSI_MESSAGES 1
struct malo_pci_softc {
struct malo_softc malo_sc;
struct resource_spec *malo_mem_spec;
struct resource *malo_res_mem[MALO_RESOURCE_MAX];
struct resource_spec *malo_irq_spec;
struct resource *malo_res_irq[MALO_MSI_MESSAGES];
void *malo_intrhand[MALO_MSI_MESSAGES];
int malo_msi;
};
/*
* Tunable variables.
*/
SYSCTL_DECL(_hw_malo);
SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD, 0,
"Marvell 88W8335 driver PCI parameters");
static int msi_disable = 0; /* MSI disabled */
SYSCTL_INT(_hw_malo_pci, OID_AUTO, msi_disable, CTLFLAG_RW, &msi_disable,
0, "MSI disabled");
TUNABLE_INT("hw.malo.pci.msi_disable", &msi_disable);
/*
* Devices supported by this driver.
*/
#define VENDORID_MARVELL 0X11AB
#define DEVICEID_MRVL_88W8310 0X1FA7
#define DEVICEID_MRVL_88W8335R1 0X1FAA
#define DEVICEID_MRVL_88W8335R2 0X1FAB
static struct malo_product {
uint16_t mp_vendorid;
uint16_t mp_deviceid;
const char *mp_name;
} malo_products[] = {
{ VENDORID_MARVELL, DEVICEID_MRVL_88W8310,
"Marvell Libertas 88W8310 802.11g Wireless Adapter" },
{ VENDORID_MARVELL, DEVICEID_MRVL_88W8335R1,
"Marvell Libertas 88W8335 802.11g Wireless Adapter" },
{ VENDORID_MARVELL, DEVICEID_MRVL_88W8335R2,
"Marvell Libertas 88W8335 802.11g Wireless Adapter" }
};
static struct resource_spec malo_res_spec_mem[] = {
{ SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE },
{ SYS_RES_MEMORY, PCIR_BAR(1), RF_ACTIVE },
{ -1, 0, 0 }
};
static struct resource_spec malo_res_spec_legacy[] = {
{ SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
{ -1, 0, 0 }
};
static struct resource_spec malo_res_spec_msi[] = {
{ SYS_RES_IRQ, 1, RF_ACTIVE },
{ -1, 0, 0 }
};
static int malo_pci_detach(device_t);
static int
malo_pci_probe(device_t dev)
{
#define N(a) (sizeof(a) / sizeof((a)[0]))
struct malo_product *mp;
uint16_t vendor, devid;
int i;
vendor = pci_get_vendor(dev);
devid = pci_get_device(dev);
mp = malo_products;
for (i = 0; i < N(malo_products); i++, mp++) {
if (vendor == mp->mp_vendorid && devid == mp->mp_deviceid) {
device_set_desc(dev, mp->mp_name);
return (BUS_PROBE_DEFAULT);
}
}
return (ENXIO);
#undef N
}
static int
malo_pci_attach(device_t dev)
{
int error = ENXIO, i, msic, reg;
struct malo_pci_softc *psc = device_get_softc(dev);
struct malo_softc *sc = &psc->malo_sc;
sc->malo_dev = dev;
pci_enable_busmaster(dev);
/*
* Setup memory-mapping of PCI registers.
*/
psc->malo_mem_spec = malo_res_spec_mem;
error = bus_alloc_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
if (error) {
device_printf(dev, "couldn't allocate memory resources\n");
return (ENXIO);
}
/*
* Arrange and allocate interrupt line.
*/
sc->malo_invalid = 1;
if (pci_find_cap(dev, PCIY_EXPRESS, ®) == 0) {
msic = pci_msi_count(dev);
if (bootverbose)
device_printf(dev, "MSI count : %d\n", msic);
} else
msic = 0;
psc->malo_irq_spec = malo_res_spec_legacy;
if (msic == MALO_MSI_MESSAGES && msi_disable == 0) {
if (pci_alloc_msi(dev, &msic) == 0) {
if (msic == MALO_MSI_MESSAGES) {
device_printf(dev, "Using %d MSI messages\n",
msic);
psc->malo_irq_spec = malo_res_spec_msi;
psc->malo_msi = 1;
} else
pci_release_msi(dev);
}
}
error = bus_alloc_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
if (error) {
device_printf(dev, "couldn't allocate IRQ resources\n");
goto bad;
}
if (psc->malo_msi == 0)
error = bus_setup_intr(dev, psc->malo_res_irq[0],
INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
&psc->malo_intrhand[0]);
else {
for (i = 0; i < MALO_MSI_MESSAGES; i++) {
error = bus_setup_intr(dev, psc->malo_res_irq[i],
INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
&psc->malo_intrhand[i]);
if (error != 0)
break;
}
}
/*
* Setup DMA descriptor area.
*/
if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXADDR, /* maxsize */
0, /* nsegments */
BUS_SPACE_MAXADDR, /* maxsegsize */
0, /* flags */
NULL, /* lockfunc */
NULL, /* lockarg */
&sc->malo_dmat)) {
device_printf(dev, "cannot allocate DMA tag\n");
goto bad1;
}
sc->malo_io0t = rman_get_bustag(psc->malo_res_mem[0]);
sc->malo_io0h = rman_get_bushandle(psc->malo_res_mem[0]);
sc->malo_io1t = rman_get_bustag(psc->malo_res_mem[1]);
sc->malo_io1h = rman_get_bushandle(psc->malo_res_mem[1]);
error = malo_attach(pci_get_device(dev), sc);
if (error != 0)
goto bad2;
return (error);
bad2:
bus_dma_tag_destroy(sc->malo_dmat);
bad1:
if (psc->malo_msi == 0)
bus_teardown_intr(dev, psc->malo_res_irq[0],
psc->malo_intrhand[0]);
else {
for (i = 0; i < MALO_MSI_MESSAGES; i++)
bus_teardown_intr(dev, psc->malo_res_irq[i],
psc->malo_intrhand[i]);
}
bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
bad:
if (psc->malo_msi != 0)
pci_release_msi(dev);
bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
return (error);
}
static int
malo_pci_detach(device_t dev)
{
int i;
struct malo_pci_softc *psc = device_get_softc(dev);
struct malo_softc *sc = &psc->malo_sc;
/* check if device was removed */
sc->malo_invalid = !bus_child_present(dev);
malo_detach(sc);
bus_generic_detach(dev);
if (psc->malo_msi == 0)
bus_teardown_intr(dev, psc->malo_res_irq[0],
psc->malo_intrhand[0]);
else {
for (i = 0; i < MALO_MSI_MESSAGES; i++)
bus_teardown_intr(dev, psc->malo_res_irq[i],
psc->malo_intrhand[i]);
pci_release_msi(dev);
}
bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
bus_dma_tag_destroy(sc->malo_dmat);
bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
return (0);
}
static int
malo_pci_shutdown(device_t dev)
{
struct malo_pci_softc *psc = device_get_softc(dev);
malo_shutdown(&psc->malo_sc);
return (0);
}
static int
malo_pci_suspend(device_t dev)
{
struct malo_pci_softc *psc = device_get_softc(dev);
malo_suspend(&psc->malo_sc);
return (0);
}
static int
malo_pci_resume(device_t dev)
{
struct malo_pci_softc *psc = device_get_softc(dev);
malo_resume(&psc->malo_sc);
return (0);
}
static device_method_t malo_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, malo_pci_probe),
DEVMETHOD(device_attach, malo_pci_attach),
DEVMETHOD(device_detach, malo_pci_detach),
DEVMETHOD(device_shutdown, malo_pci_shutdown),
DEVMETHOD(device_suspend, malo_pci_suspend),
DEVMETHOD(device_resume, malo_pci_resume),
{ 0,0 }
};
static driver_t malo_pci_driver = {
"malo",
malo_pci_methods,
sizeof(struct malo_pci_softc)
};
static devclass_t malo_devclass;
DRIVER_MODULE(malo, pci, malo_pci_driver, malo_devclass, 0, 0);
MODULE_VERSION(malo, 1);
MODULE_DEPEND(malo, wlan, 1, 1, 1); /* 802.11 media layer */
MODULE_DEPEND(malo, firmware, 1, 1, 1);