/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2007 Marvell Semiconductor, Inc. * Copyright (c) 2007 Sam Leffler, Errno Consulting * Copyright (c) 2008 Weongyo Jeong * 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 #ifdef __FreeBSD__ __FBSDID("$FreeBSD$"); #endif /* * PCI front-end for the Marvell 88W8335 Wireless LAN controller driver. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * 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); static SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Marvell 88W8335 driver PCI parameters"); static int msi_disable = 0; /* MSI disabled */ SYSCTL_INT(_hw_malo_pci, OID_AUTO, msi_disable, CTLFLAG_RWTUN, &msi_disable, 0, "MSI disabled"); /* * 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) { 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 < nitems(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); } 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_MAXSIZE, /* maxsize */ 0, /* nsegments */ BUS_SPACE_MAXSIZE, /* 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) }; DRIVER_MODULE(malo, pci, malo_pci_driver, 0, 0); MODULE_VERSION(malo, 1); MODULE_DEPEND(malo, wlan, 1, 1, 1); /* 802.11 media layer */ MODULE_DEPEND(malo, firmware, 1, 1, 1);