2 * Copyright (c) 2007 Marvell Semiconductor, Inc.
3 * Copyright (c) 2007 Sam Leffler, Errno Consulting
4 * Copyright (c) 2008 Weongyo Jeong <weongyo@freebsd.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 * redistribution must be conditioned upon including a substantially
16 * similar Disclaimer requirement for further binary redistribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
32 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
38 * PCI front-end for the Marvell 88W8335 Wireless LAN controller driver.
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
44 #include <sys/module.h>
45 #include <sys/socket.h>
46 #include <sys/sysctl.h>
48 #include <machine/bus.h>
53 #include <net/if_var.h>
54 #include <net/if_media.h>
55 #include <net/ethernet.h>
57 #include <net80211/ieee80211_var.h>
59 #include <dev/malo/if_malo.h>
61 #include <dev/pci/pcivar.h>
62 #include <dev/pci/pcireg.h>
68 #define MALO_RESOURCE_MAX 2
69 #define MALO_MSI_MESSAGES 1
71 struct malo_pci_softc {
72 struct malo_softc malo_sc;
73 struct resource_spec *malo_mem_spec;
74 struct resource *malo_res_mem[MALO_RESOURCE_MAX];
75 struct resource_spec *malo_irq_spec;
76 struct resource *malo_res_irq[MALO_MSI_MESSAGES];
77 void *malo_intrhand[MALO_MSI_MESSAGES];
84 SYSCTL_DECL(_hw_malo);
85 static SYSCTL_NODE(_hw_malo, OID_AUTO, pci, CTLFLAG_RD, 0,
86 "Marvell 88W8335 driver PCI parameters");
88 static int msi_disable = 0; /* MSI disabled */
89 SYSCTL_INT(_hw_malo_pci, OID_AUTO, msi_disable, CTLFLAG_RWTUN, &msi_disable,
93 * Devices supported by this driver.
95 #define VENDORID_MARVELL 0X11AB
96 #define DEVICEID_MRVL_88W8310 0X1FA7
97 #define DEVICEID_MRVL_88W8335R1 0X1FAA
98 #define DEVICEID_MRVL_88W8335R2 0X1FAB
100 static struct malo_product {
101 uint16_t mp_vendorid;
102 uint16_t mp_deviceid;
104 } malo_products[] = {
105 { VENDORID_MARVELL, DEVICEID_MRVL_88W8310,
106 "Marvell Libertas 88W8310 802.11g Wireless Adapter" },
107 { VENDORID_MARVELL, DEVICEID_MRVL_88W8335R1,
108 "Marvell Libertas 88W8335 802.11g Wireless Adapter" },
109 { VENDORID_MARVELL, DEVICEID_MRVL_88W8335R2,
110 "Marvell Libertas 88W8335 802.11g Wireless Adapter" }
113 static struct resource_spec malo_res_spec_mem[] = {
114 { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE },
115 { SYS_RES_MEMORY, PCIR_BAR(1), RF_ACTIVE },
119 static struct resource_spec malo_res_spec_legacy[] = {
120 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE },
124 static struct resource_spec malo_res_spec_msi[] = {
125 { SYS_RES_IRQ, 1, RF_ACTIVE },
129 static int malo_pci_detach(device_t);
132 malo_pci_probe(device_t dev)
134 struct malo_product *mp;
135 uint16_t vendor, devid;
138 vendor = pci_get_vendor(dev);
139 devid = pci_get_device(dev);
142 for (i = 0; i < nitems(malo_products); i++, mp++) {
143 if (vendor == mp->mp_vendorid && devid == mp->mp_deviceid) {
144 device_set_desc(dev, mp->mp_name);
145 return (BUS_PROBE_DEFAULT);
153 malo_pci_attach(device_t dev)
155 int error = ENXIO, i, msic, reg;
156 struct malo_pci_softc *psc = device_get_softc(dev);
157 struct malo_softc *sc = &psc->malo_sc;
161 pci_enable_busmaster(dev);
164 * Setup memory-mapping of PCI registers.
166 psc->malo_mem_spec = malo_res_spec_mem;
167 error = bus_alloc_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
169 device_printf(dev, "couldn't allocate memory resources\n");
174 * Arrange and allocate interrupt line.
176 sc->malo_invalid = 1;
178 if (pci_find_cap(dev, PCIY_EXPRESS, ®) == 0) {
179 msic = pci_msi_count(dev);
181 device_printf(dev, "MSI count : %d\n", msic);
185 psc->malo_irq_spec = malo_res_spec_legacy;
186 if (msic == MALO_MSI_MESSAGES && msi_disable == 0) {
187 if (pci_alloc_msi(dev, &msic) == 0) {
188 if (msic == MALO_MSI_MESSAGES) {
189 device_printf(dev, "Using %d MSI messages\n",
191 psc->malo_irq_spec = malo_res_spec_msi;
194 pci_release_msi(dev);
198 error = bus_alloc_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
200 device_printf(dev, "couldn't allocate IRQ resources\n");
204 if (psc->malo_msi == 0)
205 error = bus_setup_intr(dev, psc->malo_res_irq[0],
206 INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
207 &psc->malo_intrhand[0]);
209 for (i = 0; i < MALO_MSI_MESSAGES; i++) {
210 error = bus_setup_intr(dev, psc->malo_res_irq[i],
211 INTR_TYPE_NET | INTR_MPSAFE, malo_intr, NULL, sc,
212 &psc->malo_intrhand[i]);
219 * Setup DMA descriptor area.
221 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
222 1, 0, /* alignment, bounds */
223 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
224 BUS_SPACE_MAXADDR, /* highaddr */
225 NULL, NULL, /* filter, filterarg */
226 BUS_SPACE_MAXSIZE, /* maxsize */
228 BUS_SPACE_MAXSIZE, /* maxsegsize */
233 device_printf(dev, "cannot allocate DMA tag\n");
237 sc->malo_io0t = rman_get_bustag(psc->malo_res_mem[0]);
238 sc->malo_io0h = rman_get_bushandle(psc->malo_res_mem[0]);
239 sc->malo_io1t = rman_get_bustag(psc->malo_res_mem[1]);
240 sc->malo_io1h = rman_get_bushandle(psc->malo_res_mem[1]);
242 error = malo_attach(pci_get_device(dev), sc);
250 bus_dma_tag_destroy(sc->malo_dmat);
252 if (psc->malo_msi == 0)
253 bus_teardown_intr(dev, psc->malo_res_irq[0],
254 psc->malo_intrhand[0]);
256 for (i = 0; i < MALO_MSI_MESSAGES; i++)
257 bus_teardown_intr(dev, psc->malo_res_irq[i],
258 psc->malo_intrhand[i]);
260 bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
262 if (psc->malo_msi != 0)
263 pci_release_msi(dev);
264 bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
270 malo_pci_detach(device_t dev)
273 struct malo_pci_softc *psc = device_get_softc(dev);
274 struct malo_softc *sc = &psc->malo_sc;
276 /* check if device was removed */
277 sc->malo_invalid = !bus_child_present(dev);
281 bus_generic_detach(dev);
283 if (psc->malo_msi == 0)
284 bus_teardown_intr(dev, psc->malo_res_irq[0],
285 psc->malo_intrhand[0]);
287 for (i = 0; i < MALO_MSI_MESSAGES; i++)
288 bus_teardown_intr(dev, psc->malo_res_irq[i],
289 psc->malo_intrhand[i]);
291 pci_release_msi(dev);
294 bus_release_resources(dev, psc->malo_irq_spec, psc->malo_res_irq);
295 bus_dma_tag_destroy(sc->malo_dmat);
296 bus_release_resources(dev, psc->malo_mem_spec, psc->malo_res_mem);
302 malo_pci_shutdown(device_t dev)
304 struct malo_pci_softc *psc = device_get_softc(dev);
306 malo_shutdown(&psc->malo_sc);
312 malo_pci_suspend(device_t dev)
314 struct malo_pci_softc *psc = device_get_softc(dev);
316 malo_suspend(&psc->malo_sc);
322 malo_pci_resume(device_t dev)
324 struct malo_pci_softc *psc = device_get_softc(dev);
326 malo_resume(&psc->malo_sc);
331 static device_method_t malo_pci_methods[] = {
332 /* Device interface */
333 DEVMETHOD(device_probe, malo_pci_probe),
334 DEVMETHOD(device_attach, malo_pci_attach),
335 DEVMETHOD(device_detach, malo_pci_detach),
336 DEVMETHOD(device_shutdown, malo_pci_shutdown),
337 DEVMETHOD(device_suspend, malo_pci_suspend),
338 DEVMETHOD(device_resume, malo_pci_resume),
342 static driver_t malo_pci_driver = {
345 sizeof(struct malo_pci_softc)
348 static devclass_t malo_devclass;
349 DRIVER_MODULE(malo, pci, malo_pci_driver, malo_devclass, 0, 0);
350 MODULE_VERSION(malo, 1);
351 MODULE_DEPEND(malo, wlan, 1, 1, 1); /* 802.11 media layer */
352 MODULE_DEPEND(malo, firmware, 1, 1, 1);