Nuke old TX rate control algorithm coming with ral(4).
[dragonfly.git] / sys / dev / netif / ral / if_ral_pci.c
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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 * $FreeBSD: src/sys/dev/ral/if_ral_pci.c,v 1.4 2006/03/05 23:27:51 silby Exp $
822dce70 18 * $DragonFly: src/sys/dev/netif/ral/if_ral_pci.c,v 1.5 2007/04/02 14:25:38 sephe Exp $
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19 */
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/sysctl.h>
27#include <sys/sockio.h>
28#include <sys/mbuf.h>
29#include <sys/kernel.h>
30#include <sys/socket.h>
31#include <sys/systm.h>
32#include <sys/malloc.h>
33#include <sys/module.h>
34#include <sys/bus.h>
5fdff524 35#include <sys/rman.h>
1f7ab7c9 36#include <sys/endian.h>
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37
38#include <net/bpf.h>
39#include <net/if.h>
40#include <net/if_arp.h>
41#include <net/ethernet.h>
42#include <net/if_dl.h>
43#include <net/if_media.h>
44#include <net/if_types.h>
45
46#include <netproto/802_11/ieee80211_var.h>
47#include <netproto/802_11/ieee80211_radiotap.h>
48
f7f32fc1 49#include <bus/pci/pcidevs.h>
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50#include <bus/pci/pcireg.h>
51#include <bus/pci/pcivar.h>
52
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53#include <dev/netif/ral/rt2560var.h>
54#include <dev/netif/ral/rt2661var.h>
55
56struct ral_opns {
57 int (*attach)(device_t, int);
58 int (*detach)(void *);
59 void (*shutdown)(void *);
60 void (*suspend)(void *);
61 void (*resume)(void *);
62};
63
64static const struct ral_opns ral_rt2560_opns = {
65 .attach = rt2560_attach,
66 .detach = rt2560_detach,
67 .shutdown = rt2560_shutdown,
68 .suspend = rt2560_suspend,
69 .resume = rt2560_resume,
70};
71
72static const struct ral_opns ral_rt2661_opns = {
73 .attach = rt2661_attach,
74 .detach = rt2661_detach,
75 .shutdown = rt2661_shutdown,
76 .suspend = rt2661_suspend,
77 .resume = rt2661_resume,
78};
79
80static const struct ral_pci_ident {
81 uint16_t vendor;
82 uint16_t device;
83 const char *name;
84 const struct ral_opns *opns;
85} ral_pci_ids[] = {
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86 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560,
87 "Ralink Technology RT2560", &ral_rt2560_opns },
88 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S,
89 "Ralink Technology RT2561S", &ral_rt2661_opns },
90 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561,
91 "Ralink Technology RT2561", &ral_rt2661_opns },
92 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661,
93 "Ralink Technology RT2661", &ral_rt2661_opns },
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94 { 0, 0, NULL, NULL }
95};
96
97struct ral_pci_softc {
98 /* XXX MUST be the first field */
99 union {
100 struct rt2560_softc sc_rt2560;
101 struct rt2661_softc sc_rt2661;
102 } u;
103
104 const struct ral_opns *sc_opns;
105 int mem_rid;
106 struct resource *mem;
107};
108
109static int ral_pci_probe(device_t);
110static int ral_pci_attach(device_t);
111static int ral_pci_detach(device_t);
112static int ral_pci_shutdown(device_t);
113static int ral_pci_suspend(device_t);
114static int ral_pci_resume(device_t);
115
116static device_method_t ral_pci_methods[] = {
117 /* Device interface */
118 DEVMETHOD(device_probe, ral_pci_probe),
119 DEVMETHOD(device_attach, ral_pci_attach),
120 DEVMETHOD(device_detach, ral_pci_detach),
121 DEVMETHOD(device_shutdown, ral_pci_shutdown),
122 DEVMETHOD(device_suspend, ral_pci_suspend),
123 DEVMETHOD(device_resume, ral_pci_resume),
124
125 { 0, 0 }
126};
127
128static driver_t ral_pci_driver = {
129 "ral",
130 ral_pci_methods,
131 sizeof (struct ral_pci_softc)
132};
133
134static devclass_t ral_devclass;
135
136DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0);
137DRIVER_MODULE(ral, cardbus, ral_pci_driver, ral_devclass, 0, 0);
138
139MODULE_DEPEND(ral, wlan, 1, 1, 1);
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140MODULE_DEPEND(ral, wlan_ratectl_onoe, 1, 1, 1);
141MODULE_DEPEND(ral, wlan_ratectl_sample, 1, 1, 1);
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142MODULE_DEPEND(ral, pci, 1, 1, 1);
143MODULE_DEPEND(ral, cardbus, 1, 1, 1);
144
145static int
146ral_pci_probe(device_t dev)
147{
148 const struct ral_pci_ident *ident;
149 uint16_t vid, did;
150
151 vid = pci_get_vendor(dev);
152 did = pci_get_device(dev);
153 for (ident = ral_pci_ids; ident->name != NULL; ident++) {
154 if (vid == ident->vendor && did == ident->device) {
155 struct ral_pci_softc *psc = device_get_softc(dev);
156
157 psc->sc_opns = ident->opns;
158 device_set_desc(dev, ident->name);
159 return 0;
160 }
161 }
162 return ENXIO;
163}
164
165/* Base Address Register */
166#define RAL_PCI_BAR0 0x10
167
168static int
169ral_pci_attach(device_t dev)
170{
171 struct ral_pci_softc *psc = device_get_softc(dev);
172 struct rt2560_softc *sc = &psc->u.sc_rt2560;
173 int error;
174
175 /* Assign `dev' earlier, so that we can do possible error clean up */
176 sc->sc_dev = dev;
177
178 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
179 device_printf(dev, "chip is in D%d power mode "
180 "-- setting to D0\n", pci_get_powerstate(dev));
181 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
182 }
183
184 /* enable bus-mastering */
185 pci_enable_busmaster(dev);
186
187 psc->mem_rid = RAL_PCI_BAR0;
188 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid,
189 RF_ACTIVE);
190 if (psc->mem == NULL) {
191 device_printf(dev, "could not allocate memory resource\n");
192 return ENXIO;
193 }
194 sc->sc_st = rman_get_bustag(psc->mem);
195 sc->sc_sh = rman_get_bushandle(psc->mem);
196
197 error = psc->sc_opns->attach(dev, pci_get_device(dev));
198 if (error != 0)
199 ral_pci_detach(dev);
200
201 return error;
202}
203
204static int
205ral_pci_detach(device_t dev)
206{
207 struct ral_pci_softc *psc = device_get_softc(dev);
208
209 if (device_is_attached(dev))
210 psc->sc_opns->detach(psc);
211
212 bus_generic_detach(dev);
213
214 if (psc->mem != NULL) {
215 bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid,
216 psc->mem);
217 }
218 return 0;
219}
220
221static int
222ral_pci_shutdown(device_t dev)
223{
224 struct ral_pci_softc *psc = device_get_softc(dev);
225
226 psc->sc_opns->shutdown(psc);
227 return 0;
228}
229
230static int
231ral_pci_suspend(device_t dev)
232{
233 struct ral_pci_softc *psc = device_get_softc(dev);
234
235 psc->sc_opns->suspend(psc);
236 return 0;
237}
238
239static int
240ral_pci_resume(device_t dev)
241{
242 struct ral_pci_softc *psc = device_get_softc(dev);
243
244 psc->sc_opns->resume(psc);
245 return 0;
246}