1/*-
2 * Copyright (c) 2005, 2006
3 *	Damien Bergamini <damien.bergamini@free.fr>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <sys/cdefs.h>
19__FBSDID("$FreeBSD: stable/11/sys/dev/ral/if_ral_pci.c 352563 2019-09-20 19:56:55Z mizhka $");
20
21/*
22 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
23 */
24
25#include <sys/param.h>
26#include <sys/systm.h>
27#include <sys/bus.h>
28#include <sys/kernel.h>
29#include <sys/lock.h>
30#include <sys/malloc.h>
31#include <sys/mbuf.h>
32#include <sys/module.h>
33#include <sys/mutex.h>
34#include <sys/rman.h>
35#include <sys/socket.h>
36
37#include <machine/bus.h>
38#include <machine/resource.h>
39
40#include <net/ethernet.h>
41#include <net/if.h>
42#include <net/if_media.h>
43#include <net/route.h>
44
45#include <net80211/ieee80211_var.h>
46#include <net80211/ieee80211_radiotap.h>
47
48#include <dev/pci/pcireg.h>
49#include <dev/pci/pcivar.h>
50
51#include <dev/ral/rt2560var.h>
52#include <dev/ral/rt2661var.h>
53#include <dev/ral/rt2860var.h>
54
55MODULE_DEPEND(ral, pci, 1, 1, 1);
56MODULE_DEPEND(ral, firmware, 1, 1, 1);
57MODULE_DEPEND(ral, wlan, 1, 1, 1);
58MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
59
60static int ral_msi_disable;
61TUNABLE_INT("hw.ral.msi_disable", &ral_msi_disable);
62
63struct ral_pci_ident {
64	uint16_t	vendor;
65	uint16_t	device;
66	const char	*name;
67};
68
69static const struct ral_pci_ident ral_pci_ids[] = {
70	{ 0x1432, 0x7708, "Edimax RT2860" },
71	{ 0x1432, 0x7711, "Edimax RT3591" },
72	{ 0x1432, 0x7722, "Edimax RT3591" },
73	{ 0x1432, 0x7727, "Edimax RT2860" },
74	{ 0x1432, 0x7728, "Edimax RT2860" },
75	{ 0x1432, 0x7738, "Edimax RT2860" },
76	{ 0x1432, 0x7748, "Edimax RT2860" },
77	{ 0x1432, 0x7758, "Edimax RT2860" },
78	{ 0x1432, 0x7768, "Edimax RT2860" },
79	{ 0x1462, 0x891a, "MSI RT3090" },
80	{ 0x1814, 0x0201, "Ralink Technology RT2560" },
81	{ 0x1814, 0x0301, "Ralink Technology RT2561S" },
82	{ 0x1814, 0x0302, "Ralink Technology RT2561" },
83	{ 0x1814, 0x0401, "Ralink Technology RT2661" },
84	{ 0x1814, 0x0601, "Ralink Technology RT2860" },
85	{ 0x1814, 0x0681, "Ralink Technology RT2890" },
86	{ 0x1814, 0x0701, "Ralink Technology RT2760" },
87	{ 0x1814, 0x0781, "Ralink Technology RT2790" },
88	{ 0x1814, 0x3060, "Ralink Technology RT3060" },
89	{ 0x1814, 0x3062, "Ralink Technology RT3062" },
90	{ 0x1814, 0x3090, "Ralink Technology RT3090" },
91	{ 0x1814, 0x3091, "Ralink Technology RT3091" },
92	{ 0x1814, 0x3092, "Ralink Technology RT3092" },
93	{ 0x1814, 0x3390, "Ralink Technology RT3390" },
94	{ 0x1814, 0x3562, "Ralink Technology RT3562" },
95	{ 0x1814, 0x3592, "Ralink Technology RT3592" },
96	{ 0x1814, 0x3593, "Ralink Technology RT3593" },
97	{ 0x1814, 0x5360, "Ralink Technology RT5390" },
98	{ 0x1814, 0x5362, "Ralink Technology RT5392" },
99	{ 0x1814, 0x5390, "Ralink Technology RT5390" },
100	{ 0x1814, 0x5392, "Ralink Technology RT5392" },
101	{ 0x1814, 0x539a, "Ralink Technology RT5390" },
102	{ 0x1814, 0x539b, "Ralink Technology RT5390" },
103	{ 0x1814, 0x539f, "Ralink Technology RT5390" },
104	{ 0x1a3b, 0x1059, "AWT RT2890" },
105	{ 0, 0, NULL }
106};
107
108static const 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	const struct ral_opns	*sc_opns;
148	struct resource		*irq;
149	struct resource		*mem;
150	void			*sc_ih;
151};
152
153static int ral_pci_probe(device_t);
154static int ral_pci_attach(device_t);
155static int ral_pci_detach(device_t);
156static int ral_pci_shutdown(device_t);
157static int ral_pci_suspend(device_t);
158static int ral_pci_resume(device_t);
159
160static device_method_t ral_pci_methods[] = {
161	/* Device interface */
162	DEVMETHOD(device_probe,		ral_pci_probe),
163	DEVMETHOD(device_attach,	ral_pci_attach),
164	DEVMETHOD(device_detach,	ral_pci_detach),
165	DEVMETHOD(device_shutdown,	ral_pci_shutdown),
166	DEVMETHOD(device_suspend,	ral_pci_suspend),
167	DEVMETHOD(device_resume,	ral_pci_resume),
168
169	DEVMETHOD_END
170};
171
172static driver_t ral_pci_driver = {
173	"ral",
174	ral_pci_methods,
175	sizeof (struct ral_pci_softc)
176};
177
178static devclass_t ral_devclass;
179
180DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, NULL, NULL);
181
182static int
183ral_pci_probe(device_t dev)
184{
185	const struct ral_pci_ident *ident;
186
187	for (ident = ral_pci_ids; ident->name != NULL; ident++) {
188		if (pci_get_vendor(dev) == ident->vendor &&
189		    pci_get_device(dev) == ident->device) {
190			device_set_desc(dev, ident->name);
191			return (BUS_PROBE_DEFAULT);
192		}
193	}
194	return ENXIO;
195}
196
197static int
198ral_pci_attach(device_t dev)
199{
200	struct ral_pci_softc *psc = device_get_softc(dev);
201	struct rt2560_softc *sc = &psc->u.sc_rt2560;
202	int count, error, rid;
203
204	pci_enable_busmaster(dev);
205
206	switch (pci_get_device(dev)) {
207	case 0x0201:
208		psc->sc_opns = &ral_rt2560_opns;
209		break;
210	case 0x0301:
211	case 0x0302:
212	case 0x0401:
213		psc->sc_opns = &ral_rt2661_opns;
214		break;
215	default:
216		psc->sc_opns = &ral_rt2860_opns;
217		break;
218	}
219
220	rid = PCIR_BAR(0);
221	psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
222	    RF_ACTIVE);
223	if (psc->mem == NULL) {
224		device_printf(dev, "could not allocate memory resource\n");
225		return ENXIO;
226	}
227
228	sc->sc_st = rman_get_bustag(psc->mem);
229	sc->sc_sh = rman_get_bushandle(psc->mem);
230	sc->sc_invalid = 1;
231
232	rid = 0;
233	if (ral_msi_disable == 0) {
234		count = 1;
235		if (pci_alloc_msi(dev, &count) == 0)
236			rid = 1;
237	}
238	psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
239	    (rid != 0 ? 0 : RF_SHAREABLE));
240	if (psc->irq == NULL) {
241		device_printf(dev, "could not allocate interrupt resource\n");
242		pci_release_msi(dev);
243		bus_release_resource(dev, SYS_RES_MEMORY,
244		    rman_get_rid(psc->mem), psc->mem);
245		return ENXIO;
246	}
247
248	error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
249	if (error != 0) {
250		(void)ral_pci_detach(dev);
251		return error;
252	}
253
254	/*
255	 * Hook our interrupt after all initialization is complete.
256	 */
257	error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
258	    NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
259	if (error != 0) {
260		device_printf(dev, "could not set up interrupt\n");
261		(void)ral_pci_detach(dev);
262		return error;
263	}
264	sc->sc_invalid = 0;
265
266	return 0;
267}
268
269static int
270ral_pci_detach(device_t dev)
271{
272	struct ral_pci_softc *psc = device_get_softc(dev);
273	struct rt2560_softc *sc = &psc->u.sc_rt2560;
274
275	/* check if device was removed */
276	sc->sc_invalid = !bus_child_present(dev);
277
278	if (psc->sc_ih != NULL)
279		bus_teardown_intr(dev, psc->irq, psc->sc_ih);
280	(*psc->sc_opns->detach)(psc);
281
282	bus_generic_detach(dev);
283	bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(psc->irq),
284	    psc->irq);
285	pci_release_msi(dev);
286
287	bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(psc->mem),
288	    psc->mem);
289
290	return 0;
291}
292
293static int
294ral_pci_shutdown(device_t dev)
295{
296	struct ral_pci_softc *psc = device_get_softc(dev);
297
298	(*psc->sc_opns->shutdown)(psc);
299
300	return 0;
301}
302
303static int
304ral_pci_suspend(device_t dev)
305{
306	struct ral_pci_softc *psc = device_get_softc(dev);
307
308	(*psc->sc_opns->suspend)(psc);
309
310	return 0;
311}
312
313static int
314ral_pci_resume(device_t dev)
315{
316	struct ral_pci_softc *psc = device_get_softc(dev);
317
318	(*psc->sc_opns->resume)(psc);
319
320	return 0;
321}
322