if_ndis_pci.c revision 126706 
1/*
2 * Copyright (c) 2003
3 *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/dev/if_ndis/if_ndis_pci.c 126706 2004-03-07 02:49:06Z wpaul $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/sockio.h>
39#include <sys/mbuf.h>
40#include <sys/malloc.h>
41#include <sys/kernel.h>
42#include <sys/socket.h>
43#include <sys/queue.h>
44#include <sys/sysctl.h>
45
46#include <net/if.h>
47#include <net/if_arp.h>
48#include <net/ethernet.h>
49#include <net/if_dl.h>
50#include <net/if_media.h>
51
52#include <net/bpf.h>
53
54#include <machine/bus_memio.h>
55#include <machine/bus_pio.h>
56#include <machine/bus.h>
57#include <machine/resource.h>
58#include <sys/bus.h>
59#include <sys/rman.h>
60
61#include <net80211/ieee80211_var.h>
62#include <net80211/ieee80211_ioctl.h>
63
64#include <dev/wi/if_wavelan_ieee.h>
65
66#include <dev/pci/pcireg.h>
67#include <dev/pci/pcivar.h>
68
69#include <compat/ndis/pe_var.h>
70#include <compat/ndis/resource_var.h>
71#include <compat/ndis/ntoskrnl_var.h>
72#include <compat/ndis/ndis_var.h>
73#include <compat/ndis/cfg_var.h>
74#include <dev/if_ndis/if_ndisvar.h>
75
76#include "ndis_driver_data.h"
77
78#ifdef NDIS_PCI_DEV_TABLE
79
80MODULE_DEPEND(ndis, pci, 1, 1, 1);
81MODULE_DEPEND(ndis, ether, 1, 1, 1);
82MODULE_DEPEND(ndis, wlan, 1, 1, 1);
83MODULE_DEPEND(ndis, ndisapi, 1, 1, 1);
84
85/*
86 * Various supported device vendors/types and their names.
87 * These are defined in the ndis_driver_data.h file.
88 */
89static struct ndis_pci_type ndis_devs[] = {
90#ifdef NDIS_PCI_DEV_TABLE
91	NDIS_PCI_DEV_TABLE
92#endif
93	{ 0, 0, 0, NULL }
94};
95
96static int ndis_probe_pci	(device_t);
97static int ndis_attach_pci	(device_t);
98extern int ndis_attach		(device_t);
99extern int ndis_shutdown	(device_t);
100extern int ndis_detach		(device_t);
101extern int ndis_suspend		(device_t);
102extern int ndis_resume		(device_t);
103
104extern struct mtx_pool *ndis_mtxpool;
105
106static device_method_t ndis_methods[] = {
107	/* Device interface */
108	DEVMETHOD(device_probe,		ndis_probe_pci),
109	DEVMETHOD(device_attach,	ndis_attach_pci),
110	DEVMETHOD(device_detach,	ndis_detach),
111	DEVMETHOD(device_shutdown,	ndis_shutdown),
112	DEVMETHOD(device_suspend,	ndis_suspend),
113	DEVMETHOD(device_resume,	ndis_resume),
114
115	{ 0, 0 }
116};
117
118static driver_t ndis_driver = {
119#ifdef NDIS_DEVNAME
120	NDIS_DEVNAME,
121#else
122	"ndis",
123#endif
124	ndis_methods,
125	sizeof(struct ndis_softc)
126};
127
128static devclass_t ndis_devclass;
129
130#ifdef NDIS_MODNAME
131#define NDIS_MODNAME_OVERRIDE_PCI(x)					\
132	DRIVER_MODULE(x, pci, ndis_driver, ndis_devclass, 0, 0)
133#define NDIS_MODNAME_OVERRIDE_CARDBUS(x)				\
134	DRIVER_MODULE(x, cardbus, ndis_driver, ndis_devclass, 0, 0)
135NDIS_MODNAME_OVERRIDE_PCI(NDIS_MODNAME);
136NDIS_MODNAME_OVERRIDE_CARDBUS(NDIS_MODNAME);
137#else
138DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, 0, 0);
139DRIVER_MODULE(ndis, cardbus, ndis_driver, ndis_devclass, 0, 0);
140#endif
141
142/*
143 * Probe for an NDIS device. Check the PCI vendor and device
144 * IDs against our list and return a device name if we find a match.
145 */
146static int
147ndis_probe_pci(dev)
148	device_t		dev;
149{
150	struct ndis_pci_type	*t;
151
152	t = ndis_devs;
153
154	while(t->ndis_name != NULL) {
155		if ((pci_get_vendor(dev) == t->ndis_vid) &&
156		    (pci_get_device(dev) == t->ndis_did) &&
157		    ((pci_read_config(dev, PCIR_SUBVEND_0, 4) ==
158		    t->ndis_subsys) || t->ndis_subsys == 0)) {
159			device_set_desc(dev, t->ndis_name);
160			return(0);
161		}
162		t++;
163	}
164
165	return(ENXIO);
166}
167
168/*
169 * Attach the interface. Allocate softc structures, do ifmedia
170 * setup and ethernet/BPF attach.
171 */
172static int
173ndis_attach_pci(dev)
174	device_t		dev;
175{
176	struct ndis_softc	*sc;
177	int			unit, error = 0, rid;
178	struct ndis_pci_type	*t;
179	int			devidx = 0, defidx = 0;
180	struct resource_list	*rl;
181	struct resource_list_entry	*rle;
182
183	sc = device_get_softc(dev);
184	unit = device_get_unit(dev);
185	sc->ndis_dev = dev;
186
187	/*
188	 * Map control/status registers.
189	 */
190
191	pci_enable_busmaster(dev);
192
193	rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
194	if (rl != NULL) {
195		SLIST_FOREACH(rle, rl, link) {
196			switch (rle->type) {
197			case SYS_RES_IOPORT:
198				sc->ndis_io_rid = rle->rid;
199				sc->ndis_res_io = bus_alloc_resource(dev,
200				    SYS_RES_IOPORT, &sc->ndis_io_rid,
201				    0, ~0, 1, RF_ACTIVE);
202				if (sc->ndis_res_io == NULL) {
203					device_printf(dev,
204					    "couldn't map iospace\n");
205					error = ENXIO;
206					goto fail;
207				}
208				break;
209			case SYS_RES_MEMORY:
210				if (sc->ndis_res_altmem != NULL &&
211				    sc->ndis_res_mem != NULL) {
212					device_printf(dev,
213					    "too many memory resources\n");
214					error = ENXIO;
215					goto fail;
216				}
217				if (rle->rid == PCIR_BAR(2)) {
218					sc->ndis_altmem_rid = rle->rid;
219					sc->ndis_res_altmem =
220					    bus_alloc_resource(dev,
221					        SYS_RES_MEMORY,
222						&sc->ndis_altmem_rid,
223						0, ~0, 1, RF_ACTIVE);
224					if (sc->ndis_res_altmem == NULL) {
225						device_printf(dev,
226						    "couldn't map alt "
227						    "memory\n");
228						error = ENXIO;
229						goto fail;
230					}
231				} else {
232					sc->ndis_mem_rid = rle->rid;
233					sc->ndis_res_mem =
234					    bus_alloc_resource(dev,
235					        SYS_RES_MEMORY,
236						&sc->ndis_mem_rid,
237						0, ~0, 1, RF_ACTIVE);
238					if (sc->ndis_res_mem == NULL) {
239						device_printf(dev,
240						    "couldn't map memory\n");
241						error = ENXIO;
242						goto fail;
243					}
244				}
245				break;
246			case SYS_RES_IRQ:
247				rid = rle->rid;
248				sc->ndis_irq = bus_alloc_resource(dev,
249				    SYS_RES_IRQ, &rid, 0, ~0, 1,
250	    			    RF_SHAREABLE | RF_ACTIVE);
251				if (sc->ndis_irq == NULL) {
252					device_printf(dev,
253					    "couldn't map interrupt\n");
254					error = ENXIO;
255					goto fail;
256				}
257				break;
258			default:
259				break;
260			}
261			sc->ndis_rescnt++;
262		}
263	}
264
265	/*
266	 * Allocate the parent bus DMA tag appropriate for PCI.
267	 */
268#define NDIS_NSEG_NEW 32
269	error = bus_dma_tag_create(NULL,	/* parent */
270			1, 0,			/* alignment, boundary */
271			BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
272                        BUS_SPACE_MAXADDR,	/* highaddr */
273			NULL, NULL,		/* filter, filterarg */
274			MAXBSIZE, NDIS_NSEG_NEW,/* maxsize, nsegments */
275			BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
276			BUS_DMA_ALLOCNOW,       /* flags */
277			NULL, NULL,		/* lockfunc, lockarg */
278			&sc->ndis_parent_tag);
279
280        if (error)
281                goto fail;
282
283	sc->ndis_iftype = PCIBus;
284
285	/* Figure out exactly which device we matched. */
286
287	t = ndis_devs;
288
289	while(t->ndis_name != NULL) {
290		if ((pci_get_vendor(dev) == t->ndis_vid) &&
291		    (pci_get_device(dev) == t->ndis_did)) {
292			if (t->ndis_subsys == 0)
293				defidx = devidx;
294			else {
295				if (t->ndis_subsys ==
296				    pci_read_config(dev, PCIR_SUBVEND_0, 4))
297					break;
298			}
299		}
300		t++;
301		devidx++;
302	}
303
304	if (ndis_devs[devidx].ndis_name == NULL)
305		sc->ndis_devidx = defidx;
306	else
307		sc->ndis_devidx = devidx;
308
309	error = ndis_attach(dev);
310
311fail:
312	return(error);
313}
314
315#endif /* NDIS_PCI_DEV_TABLE */
316