1 | /* $NetBSD: ehci_cardbus.c,v 1.34 2016/07/14 04:00:45 msaitoh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1998 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Lennart Augustsson (lennart@augustsson.net) at |
9 | * Carlstedt Research & Technology. |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
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 THE |
30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | #include <sys/cdefs.h> |
34 | __KERNEL_RCSID(0, "$NetBSD: ehci_cardbus.c,v 1.34 2016/07/14 04:00:45 msaitoh Exp $" ); |
35 | |
36 | #include <sys/param.h> |
37 | #include <sys/systm.h> |
38 | #include <sys/kernel.h> |
39 | #include <sys/device.h> |
40 | #include <sys/proc.h> |
41 | |
42 | #include <sys/bus.h> |
43 | |
44 | #if defined pciinc |
45 | #include <dev/pci/pcidevs.h> |
46 | #endif |
47 | |
48 | #include <dev/cardbus/cardbusvar.h> |
49 | #include <dev/pci/pcidevs.h> |
50 | |
51 | #include <dev/cardbus/usb_cardbus.h> |
52 | |
53 | #include <dev/usb/usb.h> |
54 | #include <dev/usb/usbdi.h> |
55 | #include <dev/usb/usbdivar.h> |
56 | #include <dev/usb/usb_mem.h> |
57 | |
58 | #include <dev/usb/ehcireg.h> |
59 | #include <dev/usb/ehcivar.h> |
60 | |
61 | #ifdef EHCI_DEBUG |
62 | #define DPRINTF(x) if (ehcidebug) printf x |
63 | extern int ehcidebug; |
64 | #else |
65 | #define DPRINTF(x) |
66 | #endif |
67 | |
68 | int ehci_cardbus_match(device_t, cfdata_t, void *); |
69 | void ehci_cardbus_attach(device_t, device_t, void *); |
70 | int ehci_cardbus_detach(device_t, int); |
71 | |
72 | struct ehci_cardbus_softc { |
73 | ehci_softc_t sc; |
74 | cardbus_chipset_tag_t sc_cc; |
75 | cardbus_function_tag_t sc_cf; |
76 | cardbus_devfunc_t sc_ct; |
77 | void *sc_ih; /* interrupt vectoring */ |
78 | }; |
79 | |
80 | CFATTACH_DECL_NEW(ehci_cardbus, sizeof(struct ehci_cardbus_softc), |
81 | ehci_cardbus_match, ehci_cardbus_attach, ehci_cardbus_detach, |
82 | ehci_activate); |
83 | |
84 | static TAILQ_HEAD(, usb_cardbus) ehci_cardbus_alldevs = |
85 | TAILQ_HEAD_INITIALIZER(ehci_cardbus_alldevs); |
86 | |
87 | int |
88 | ehci_cardbus_match(device_t parent, cfdata_t match, void *aux) |
89 | { |
90 | struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; |
91 | |
92 | if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && |
93 | PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && |
94 | PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI) |
95 | return 1; |
96 | |
97 | return 0; |
98 | } |
99 | |
100 | static bool |
101 | ehci_cardbus_suspend(device_t dv, const pmf_qual_t *qual) |
102 | { |
103 | ehci_suspend(dv, qual); |
104 | #if 0 |
105 | struct ehci_cardbus_softc *sc = device_private(dv); |
106 | ehci_release_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); |
107 | #endif |
108 | |
109 | return true; |
110 | } |
111 | |
112 | static bool |
113 | ehci_cardbus_resume(device_t dv, const pmf_qual_t *qual) |
114 | { |
115 | #if 0 |
116 | struct ehci_cardbus_softc *sc = device_private(dv); |
117 | ehci_get_ownership(&sc->sc, sc->sc_pc, sc->sc_tag); |
118 | #endif |
119 | return ehci_resume(dv, qual); |
120 | } |
121 | |
122 | void |
123 | ehci_cardbus_attach(device_t parent, device_t self, void *aux) |
124 | { |
125 | struct ehci_cardbus_softc *sc = device_private(self); |
126 | struct cardbus_attach_args *ca = aux; |
127 | cardbus_devfunc_t ct = ca->ca_ct; |
128 | cardbus_chipset_tag_t cc = ct->ct_cc; |
129 | cardbus_function_tag_t cf = ct->ct_cf; |
130 | pcireg_t csr; |
131 | char devinfo[256]; |
132 | u_int ncomp; |
133 | const char *devname = device_xname(self); |
134 | struct usb_cardbus *up; |
135 | |
136 | sc->sc.sc_dev = self; |
137 | sc->sc.sc_bus.ub_hcpriv = sc; |
138 | |
139 | aprint_naive("\n" ); |
140 | pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); |
141 | aprint_normal(": %s (rev. 0x%02x)\n" , devinfo, |
142 | PCI_REVISION(ca->ca_class)); |
143 | |
144 | /* Map I/O registers */ |
145 | if (Cardbus_mapreg_map(ct, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, |
146 | &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { |
147 | aprint_error("%s: can't map mem space\n" , devname); |
148 | return; |
149 | } |
150 | |
151 | sc->sc_cc = cc; |
152 | sc->sc_cf = cf; |
153 | sc->sc_ct = ct; |
154 | sc->sc.sc_bus.ub_dmatag = ca->ca_dmat; |
155 | |
156 | /* Enable the device. */ |
157 | csr = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG); |
158 | Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, |
159 | csr | PCI_COMMAND_MASTER_ENABLE |
160 | | PCI_COMMAND_MEM_ENABLE); |
161 | |
162 | /* Disable interrupts, so we don't get any spurious ones. */ |
163 | sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); |
164 | DPRINTF(("%s: offs=%d\n" , devname, sc->sc.sc_offs)); |
165 | EOWRITE2(&sc->sc, EHCI_USBINTR, 0); |
166 | |
167 | sc->sc_ih = Cardbus_intr_establish(ct, IPL_USB, ehci_intr, sc); |
168 | if (sc->sc_ih == NULL) { |
169 | aprint_error("%s: couldn't establish interrupt\n" , devname); |
170 | return; |
171 | } |
172 | |
173 | /* Figure out vendor for root hub descriptor. */ |
174 | sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); |
175 | pci_findvendor(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), |
176 | sc->sc.sc_id_vendor); |
177 | |
178 | /* |
179 | * Find companion controllers. According to the spec they always |
180 | * have lower function numbers so they should be enumerated already. |
181 | */ |
182 | ncomp = 0; |
183 | TAILQ_FOREACH(up, &ehci_cardbus_alldevs, next) { |
184 | if (up->bus == ca->ca_bus) { |
185 | DPRINTF(("ehci_cardbus_attach: companion %s\n" , |
186 | device_xname(up->usb))); |
187 | sc->sc.sc_comps[ncomp++] = up->usb; |
188 | if (ncomp >= EHCI_COMPANION_MAX) |
189 | break; |
190 | } |
191 | } |
192 | sc->sc.sc_ncomp = ncomp; |
193 | |
194 | int err = ehci_init(&sc->sc); |
195 | if (err) { |
196 | aprint_error("%s: init failed, error=%d\n" , devname, err); |
197 | |
198 | /* Avoid spurious interrupts. */ |
199 | Cardbus_intr_disestablish(ct, sc->sc_ih); |
200 | sc->sc_ih = NULL; |
201 | |
202 | return; |
203 | } |
204 | |
205 | if (!pmf_device_register1(self, ehci_cardbus_suspend, |
206 | ehci_cardbus_resume, ehci_shutdown)) |
207 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
208 | |
209 | /* Attach usb device. */ |
210 | sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); |
211 | } |
212 | |
213 | int |
214 | ehci_cardbus_detach(device_t self, int flags) |
215 | { |
216 | struct ehci_cardbus_softc *sc = device_private(self); |
217 | struct cardbus_devfunc *ct = sc->sc_ct; |
218 | int rv; |
219 | |
220 | rv = ehci_detach(&sc->sc, flags); |
221 | if (rv) |
222 | return rv; |
223 | if (sc->sc_ih != NULL) { |
224 | Cardbus_intr_disestablish(ct, sc->sc_ih); |
225 | sc->sc_ih = NULL; |
226 | } |
227 | if (sc->sc.sc_size) { |
228 | Cardbus_mapreg_unmap(ct, PCI_CBMEM, sc->sc.iot, |
229 | sc->sc.ioh, sc->sc.sc_size); |
230 | sc->sc.sc_size = 0; |
231 | } |
232 | return 0; |
233 | } |
234 | |
235 | void |
236 | usb_cardbus_add(struct usb_cardbus *up, struct cardbus_attach_args *ca, |
237 | device_t bu) |
238 | { |
239 | TAILQ_INSERT_TAIL(&ehci_cardbus_alldevs, up, next); |
240 | up->bus = ca->ca_bus; |
241 | up->function = ca->ca_function; |
242 | up->usb = bu; |
243 | } |
244 | |
245 | void |
246 | usb_cardbus_rem(struct usb_cardbus *up) |
247 | { |
248 | TAILQ_REMOVE(&ehci_cardbus_alldevs, up, next); |
249 | } |
250 | |