29d60add09
malo and mwl use the firmware framework to access firmware images. Depending on the firmware modules itself is not required and in this case even wrong because no modules with those names exist. Pointed out by: brucec MFC after: 1 week
375 lines
9.4 KiB
C
375 lines
9.4 KiB
C
/*-
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* Copyright (c) 2007 Marvell Semiconductor, Inc.
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* Copyright (c) 2007 Sam Leffler, Errno Consulting
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* Copyright (c) 2008 Weongyo Jeong <weongyo@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <sys/cdefs.h>
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#ifdef __FreeBSD__
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__FBSDID("$FreeBSD$");
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#endif
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/*
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* PCI front-end for the Marvell 88W8335 Wireless LAN controller driver.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net80211/ieee80211_var.h>
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#include <dev/malo/if_malo.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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/*
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* PCI glue.
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*/
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#define MALO_RESOURCE_MAX 2
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#define MALO_MSI_MESSAGES 1
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struct malo_pci_softc {
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struct malo_softc malo_sc;
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struct resource_spec *malo_mem_spec;
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struct resource *malo_res_mem[MALO_RESOURCE_MAX];
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struct resource_spec *malo_irq_spec;
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struct resource *malo_res_irq[MALO_MSI_MESSAGES];
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void *malo_intrhand[MALO_MSI_MESSAGES];
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int malo_msi;
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};
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/*
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* Tunable variables.
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*/
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SYSCTL_DECL(_hw_malo);
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SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD, 0,
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"Marvell 88W8335 driver PCI parameters");
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static int msi_disable = 0; /* MSI disabled */
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SYSCTL_INT(_hw_malo_pci, OID_AUTO, msi_disable, CTLFLAG_RW, &msi_disable,
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0, "MSI disabled");
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TUNABLE_INT("hw.malo.pci.msi_disable", &msi_disable);
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/*
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* Devices supported by this driver.
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*/
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#define VENDORID_MARVELL 0X11AB
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#define DEVICEID_MRVL_88W8310 0X1FA7
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#define DEVICEID_MRVL_88W8335R1 0X1FAA
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#define DEVICEID_MRVL_88W8335R2 0X1FAB
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static struct malo_product {
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uint16_t mp_vendorid;
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uint16_t mp_deviceid;
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const char *mp_name;
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} malo_products[] = {
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{ VENDORID_MARVELL, DEVICEID_MRVL_88W8310,
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"Marvell Libertas 88W8310 802.11g Wireless Adapter" },
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{ VENDORID_MARVELL, DEVICEID_MRVL_88W8335R1,
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"Marvell Libertas 88W8335 802.11g Wireless Adapter" },
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{ VENDORID_MARVELL, DEVICEID_MRVL_88W8335R2,
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"Marvell Libertas 88W8335 802.11g Wireless Adapter" }
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};
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static struct resource_spec malo_res_spec_mem[] = {
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{ SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE },
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{ SYS_RES_MEMORY, PCIR_BAR(1), RF_ACTIVE },
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{ -1, 0, 0 }
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};
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static struct resource_spec malo_res_spec_legacy[] = {
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{ SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
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{ -1, 0, 0 }
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};
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static struct resource_spec malo_res_spec_msi[] = {
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{ SYS_RES_IRQ, 1, RF_ACTIVE },
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{ -1, 0, 0 }
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};
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static int malo_pci_detach(device_t);
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static int
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malo_pci_probe(device_t dev)
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{
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#define N(a) (sizeof(a) / sizeof((a)[0]))
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struct malo_product *mp;
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uint16_t vendor, devid;
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int i;
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vendor = pci_get_vendor(dev);
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devid = pci_get_device(dev);
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mp = malo_products;
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for (i = 0; i < N(malo_products); i++, mp++) {
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if (vendor == mp->mp_vendorid && devid == mp->mp_deviceid) {
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device_set_desc(dev, mp->mp_name);
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return (BUS_PROBE_DEFAULT);
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}
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}
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return (ENXIO);
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#undef N
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}
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static int
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malo_pci_setup(device_t dev)
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{
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/*
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* Enable memory mapping and bus mastering.
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*/
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if (pci_enable_busmaster(dev) != 0)
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return -1;
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if (pci_enable_io(dev, SYS_RES_MEMORY) != 0)
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return -1;
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return 0;
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}
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static int
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malo_pci_attach(device_t dev)
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{
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int error = ENXIO, i, msic, reg;
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struct malo_pci_softc *psc = device_get_softc(dev);
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struct malo_softc *sc = &psc->malo_sc;
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sc->malo_dev = dev;
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/*
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* Enable memory mapping and bus mastering.
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*/
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if (malo_pci_setup(dev))
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return (ENXIO);
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/*
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* Setup memory-mapping of PCI registers.
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*/
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psc->malo_mem_spec = malo_res_spec_mem;
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error = bus_alloc_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
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if (error) {
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device_printf(dev, "couldn't allocate memory resources\n");
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return (ENXIO);
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}
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/*
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* Arrange and allocate interrupt line.
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*/
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sc->malo_invalid = 1;
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if (pci_find_extcap(dev, PCIY_EXPRESS, ®) == 0) {
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msic = pci_msi_count(dev);
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if (bootverbose)
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device_printf(dev, "MSI count : %d\n", msic);
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} else
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msic = 0;
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psc->malo_irq_spec = malo_res_spec_legacy;
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if (msic == MALO_MSI_MESSAGES && msi_disable == 0) {
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if (pci_alloc_msi(dev, &msic) == 0) {
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if (msic == MALO_MSI_MESSAGES) {
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device_printf(dev, "Using %d MSI messages\n",
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msic);
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psc->malo_irq_spec = malo_res_spec_msi;
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psc->malo_msi = 1;
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} else
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pci_release_msi(dev);
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}
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}
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error = bus_alloc_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
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if (error) {
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device_printf(dev, "couldn't allocate IRQ resources\n");
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goto bad;
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}
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if (psc->malo_msi == 0)
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error = bus_setup_intr(dev, psc->malo_res_irq[0],
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INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
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&psc->malo_intrhand[0]);
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else {
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for (i = 0; i < MALO_MSI_MESSAGES; i++) {
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error = bus_setup_intr(dev, psc->malo_res_irq[i],
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INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
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&psc->malo_intrhand[i]);
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if (error != 0)
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break;
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}
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}
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/*
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* Setup DMA descriptor area.
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*/
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if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
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1, 0, /* alignment, bounds */
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BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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BUS_SPACE_MAXADDR, /* maxsize */
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0, /* nsegments */
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BUS_SPACE_MAXADDR, /* maxsegsize */
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0, /* flags */
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NULL, /* lockfunc */
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NULL, /* lockarg */
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&sc->malo_dmat)) {
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device_printf(dev, "cannot allocate DMA tag\n");
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goto bad1;
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}
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sc->malo_io0t = rman_get_bustag(psc->malo_res_mem[0]);
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sc->malo_io0h = rman_get_bushandle(psc->malo_res_mem[0]);
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sc->malo_io1t = rman_get_bustag(psc->malo_res_mem[1]);
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sc->malo_io1h = rman_get_bushandle(psc->malo_res_mem[1]);
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error = malo_attach(pci_get_device(dev), sc);
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if (error != 0)
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goto bad2;
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return (error);
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bad2:
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bus_dma_tag_destroy(sc->malo_dmat);
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bad1:
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if (psc->malo_msi == 0)
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bus_teardown_intr(dev, psc->malo_res_irq[0],
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psc->malo_intrhand[0]);
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else {
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for (i = 0; i < MALO_MSI_MESSAGES; i++)
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bus_teardown_intr(dev, psc->malo_res_irq[i],
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psc->malo_intrhand[i]);
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}
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bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
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bad:
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if (psc->malo_msi != 0)
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pci_release_msi(dev);
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bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
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return (error);
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}
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static int
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malo_pci_detach(device_t dev)
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{
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int i;
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struct malo_pci_softc *psc = device_get_softc(dev);
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struct malo_softc *sc = &psc->malo_sc;
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/* check if device was removed */
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sc->malo_invalid = !bus_child_present(dev);
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malo_detach(sc);
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bus_generic_detach(dev);
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if (psc->malo_msi == 0)
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bus_teardown_intr(dev, psc->malo_res_irq[0],
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psc->malo_intrhand[0]);
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else {
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for (i = 0; i < MALO_MSI_MESSAGES; i++)
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bus_teardown_intr(dev, psc->malo_res_irq[i],
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psc->malo_intrhand[i]);
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pci_release_msi(dev);
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}
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bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
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bus_dma_tag_destroy(sc->malo_dmat);
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bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
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return (0);
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}
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static int
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malo_pci_shutdown(device_t dev)
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{
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struct malo_pci_softc *psc = device_get_softc(dev);
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malo_shutdown(&psc->malo_sc);
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return (0);
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}
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static int
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malo_pci_suspend(device_t dev)
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{
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struct malo_pci_softc *psc = device_get_softc(dev);
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malo_suspend(&psc->malo_sc);
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return (0);
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}
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static int
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malo_pci_resume(device_t dev)
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{
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struct malo_pci_softc *psc = device_get_softc(dev);
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if (!malo_pci_setup(dev))
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return ENXIO;
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malo_resume(&psc->malo_sc);
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return (0);
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}
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static device_method_t malo_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, malo_pci_probe),
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DEVMETHOD(device_attach, malo_pci_attach),
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DEVMETHOD(device_detach, malo_pci_detach),
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DEVMETHOD(device_shutdown, malo_pci_shutdown),
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DEVMETHOD(device_suspend, malo_pci_suspend),
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DEVMETHOD(device_resume, malo_pci_resume),
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{ 0,0 }
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};
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static driver_t malo_pci_driver = {
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"malo",
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malo_pci_methods,
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sizeof(struct malo_pci_softc)
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};
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static devclass_t malo_devclass;
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DRIVER_MODULE(malo, pci, malo_pci_driver, malo_devclass, 0, 0);
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MODULE_VERSION(malo, 1);
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MODULE_DEPEND(malo, wlan, 1, 1, 1); /* 802.11 media layer */
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MODULE_DEPEND(malo, firmware, 1, 1, 1);
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