1/*	$FreeBSD$	*/
2
3/*-
4 * Copyright (c) 2005, 2006
5 *	Damien Bergamini <damien.bergamini@free.fr>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20#include <sys/cdefs.h>
21__FBSDID("$FreeBSD$");
22
23/*
24 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
25 */
26
27#include <sys/param.h>
28#include <sys/sysctl.h>
29#include <sys/sockio.h>
30#include <sys/mbuf.h>
31#include <sys/kernel.h>
32#include <sys/socket.h>
33#include <sys/systm.h>
34#include <sys/malloc.h>
35#include <sys/module.h>
36#include <sys/bus.h>
37#include <sys/endian.h>
38
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/rman.h>
42
43#include <net/bpf.h>
44#include <net/if.h>
45#include <net/if_arp.h>
46#include <net/ethernet.h>
47#include <net/if_dl.h>
48#include <net/if_media.h>
49#include <net/if_types.h>
50
51#include <net80211/ieee80211_var.h>
52#include <net80211/ieee80211_radiotap.h>
53#include <net80211/ieee80211_amrr.h>
54
55#include <dev/pci/pcireg.h>
56#include <dev/pci/pcivar.h>
57
58#include <dev/ral/rt2560var.h>
59#include <dev/ral/rt2661var.h>
60#include <dev/ral/rt2860var.h>
61
62MODULE_DEPEND(ral, pci, 1, 1, 1);
63MODULE_DEPEND(ral, firmware, 1, 1, 1);
64MODULE_DEPEND(ral, wlan, 1, 1, 1);
65MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
66
67struct ral_pci_ident {
68	uint16_t	vendor;
69	uint16_t	device;
70	const char	*name;
71};
72
73static const struct ral_pci_ident ral_pci_ids[] = {
74	{ 0x1432, 0x7708, "Edimax RT2860" },
75	{ 0x1432, 0x7711, "Edimax RT3591" },
76	{ 0x1432, 0x7722, "Edimax RT3591" },
77	{ 0x1432, 0x7727, "Edimax RT2860" },
78	{ 0x1432, 0x7728, "Edimax RT2860" },
79	{ 0x1432, 0x7738, "Edimax RT2860" },
80	{ 0x1432, 0x7748, "Edimax RT2860" },
81	{ 0x1432, 0x7758, "Edimax RT2860" },
82	{ 0x1432, 0x7768, "Edimax RT2860" },
83	{ 0x1462, 0x891a, "MSI RT3090" },
84	{ 0x1814, 0x0201, "Ralink Technology RT2560" },
85	{ 0x1814, 0x0301, "Ralink Technology RT2561S" },
86	{ 0x1814, 0x0302, "Ralink Technology RT2561" },
87	{ 0x1814, 0x0401, "Ralink Technology RT2661" },
88	{ 0x1814, 0x0601, "Ralink Technology RT2860" },
89	{ 0x1814, 0x0681, "Ralink Technology RT2890" },
90	{ 0x1814, 0x0701, "Ralink Technology RT2760" },
91	{ 0x1814, 0x0781, "Ralink Technology RT2790" },
92	{ 0x1814, 0x3060, "Ralink Technology RT3060" },
93	{ 0x1814, 0x3062, "Ralink Technology RT3062" },
94	{ 0x1814, 0x3090, "Ralink Technology RT3090" },
95	{ 0x1814, 0x3091, "Ralink Technology RT3091" },
96	{ 0x1814, 0x3092, "Ralink Technology RT3092" },
97	{ 0x1814, 0x3390, "Ralink Technology RT3390" },
98	{ 0x1814, 0x3562, "Ralink Technology RT3562" },
99	{ 0x1814, 0x3592, "Ralink Technology RT3592" },
100	{ 0x1814, 0x3593, "Ralink Technology RT3593" },
101	{ 0x1814, 0x5390, "Ralink Technology RT5390" },
102	{ 0x1814, 0x539a, "Ralink Technology RT5390" },
103	{ 0x1814, 0x539f, "Ralink Technology RT5390" },
104	{ 0x1a3b, 0x1059, "AWT RT2890" },
105	{ 0, 0, NULL }
106};
107
108static struct ral_opns {
109	int	(*attach)(device_t, int);
110	int	(*detach)(void *);
111	void	(*shutdown)(void *);
112	void	(*suspend)(void *);
113	void	(*resume)(void *);
114	void	(*intr)(void *);
115
116}  ral_rt2560_opns = {
117	rt2560_attach,
118	rt2560_detach,
119	rt2560_stop,
120	rt2560_stop,
121	rt2560_resume,
122	rt2560_intr
123
124}, ral_rt2661_opns = {
125	rt2661_attach,
126	rt2661_detach,
127	rt2661_shutdown,
128	rt2661_suspend,
129	rt2661_resume,
130	rt2661_intr
131}, ral_rt2860_opns = {
132	rt2860_attach,
133	rt2860_detach,
134	rt2860_shutdown,
135	rt2860_suspend,
136	rt2860_resume,
137	rt2860_intr
138};
139
140struct ral_pci_softc {
141	union {
142		struct rt2560_softc sc_rt2560;
143		struct rt2661_softc sc_rt2661;
144		struct rt2860_softc sc_rt2860;
145	} u;
146
147	struct ral_opns		*sc_opns;
148	int			irq_rid;
149	int			mem_rid;
150	struct resource		*irq;
151	struct resource		*mem;
152	void			*sc_ih;
153};
154
155static int ral_pci_probe(device_t);
156static int ral_pci_attach(device_t);
157static int ral_pci_detach(device_t);
158static int ral_pci_shutdown(device_t);
159static int ral_pci_suspend(device_t);
160static int ral_pci_resume(device_t);
161
162static device_method_t ral_pci_methods[] = {
163	/* Device interface */
164	DEVMETHOD(device_probe,		ral_pci_probe),
165	DEVMETHOD(device_attach,	ral_pci_attach),
166	DEVMETHOD(device_detach,	ral_pci_detach),
167	DEVMETHOD(device_shutdown,	ral_pci_shutdown),
168	DEVMETHOD(device_suspend,	ral_pci_suspend),
169	DEVMETHOD(device_resume,	ral_pci_resume),
170
171	{ 0, 0 }
172};
173
174static driver_t ral_pci_driver = {
175	"ral",
176	ral_pci_methods,
177	sizeof (struct ral_pci_softc)
178};
179
180static devclass_t ral_devclass;
181
182DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0);
183
184static int
185ral_pci_probe(device_t dev)
186{
187	const struct ral_pci_ident *ident;
188
189	for (ident = ral_pci_ids; ident->name != NULL; ident++) {
190		if (pci_get_vendor(dev) == ident->vendor &&
191		    pci_get_device(dev) == ident->device) {
192			device_set_desc(dev, ident->name);
193			return 0;
194		}
195	}
196	return ENXIO;
197}
198
199/* Base Address Register */
200#define RAL_PCI_BAR0	0x10
201
202static int
203ral_pci_attach(device_t dev)
204{
205	struct ral_pci_softc *psc = device_get_softc(dev);
206	struct rt2560_softc *sc = &psc->u.sc_rt2560;
207	int error;
208
209	if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
210		device_printf(dev, "chip is in D%d power mode "
211		    "-- setting to D0\n", pci_get_powerstate(dev));
212		pci_set_powerstate(dev, PCI_POWERSTATE_D0);
213	}
214
215	/* enable bus-mastering */
216	pci_enable_busmaster(dev);
217
218	switch (pci_get_device(dev)) {
219	case 0x0201:
220		psc->sc_opns = &ral_rt2560_opns;
221		break;
222	case 0x0301:
223	case 0x0302:
224	case 0x0401:
225		psc->sc_opns = &ral_rt2661_opns;
226		break;
227	default:
228		psc->sc_opns = &ral_rt2860_opns;
229		break;
230	}
231
232	psc->mem_rid = RAL_PCI_BAR0;
233	psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid,
234	    RF_ACTIVE);
235	if (psc->mem == NULL) {
236		device_printf(dev, "could not allocate memory resource\n");
237		return ENXIO;
238	}
239
240	sc->sc_st = rman_get_bustag(psc->mem);
241	sc->sc_sh = rman_get_bushandle(psc->mem);
242	sc->sc_invalid = 1;
243
244	psc->irq_rid = 0;
245	psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &psc->irq_rid,
246	    RF_ACTIVE | RF_SHAREABLE);
247	if (psc->irq == NULL) {
248		device_printf(dev, "could not allocate interrupt resource\n");
249		return ENXIO;
250	}
251
252	error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
253	if (error != 0)
254		return error;
255
256	/*
257	 * Hook our interrupt after all initialization is complete.
258	 */
259	error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
260	    NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
261	if (error != 0) {
262		device_printf(dev, "could not set up interrupt\n");
263		return error;
264	}
265	sc->sc_invalid = 0;
266
267	return 0;
268}
269
270static int
271ral_pci_detach(device_t dev)
272{
273	struct ral_pci_softc *psc = device_get_softc(dev);
274	struct rt2560_softc *sc = &psc->u.sc_rt2560;
275
276	/* check if device was removed */
277	sc->sc_invalid = !bus_child_present(dev);
278
279	(*psc->sc_opns->detach)(psc);
280
281	bus_generic_detach(dev);
282	bus_teardown_intr(dev, psc->irq, psc->sc_ih);
283	bus_release_resource(dev, SYS_RES_IRQ, psc->irq_rid, psc->irq);
284
285	bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, psc->mem);
286
287	return 0;
288}
289
290static int
291ral_pci_shutdown(device_t dev)
292{
293	struct ral_pci_softc *psc = device_get_softc(dev);
294
295	(*psc->sc_opns->shutdown)(psc);
296
297	return 0;
298}
299
300static int
301ral_pci_suspend(device_t dev)
302{
303	struct ral_pci_softc *psc = device_get_softc(dev);
304
305	(*psc->sc_opns->suspend)(psc);
306
307	return 0;
308}
309
310static int
311ral_pci_resume(device_t dev)
312{
313	struct ral_pci_softc *psc = device_get_softc(dev);
314
315	(*psc->sc_opns->resume)(psc);
316
317	return 0;
318}
319