1 | /* $NetBSD: uhci_cardbus.c,v 1.24 2016/07/14 04:00:45 msaitoh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1998-2005 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: uhci_cardbus.c,v 1.24 2016/07/14 04:00:45 msaitoh Exp $" ); |
35 | |
36 | #include "ehci_cardbus.h" |
37 | |
38 | #include <sys/param.h> |
39 | #include <sys/systm.h> |
40 | #include <sys/kernel.h> |
41 | #include <sys/device.h> |
42 | #include <sys/proc.h> |
43 | #include <sys/queue.h> |
44 | |
45 | #include <sys/bus.h> |
46 | |
47 | #include <dev/cardbus/cardbusvar.h> |
48 | #include <dev/cardbus/usb_cardbus.h> |
49 | |
50 | #include <dev/usb/usb.h> |
51 | #include <dev/usb/usbdi.h> |
52 | #include <dev/usb/usbdivar.h> |
53 | #include <dev/usb/usb_mem.h> |
54 | |
55 | #include <dev/usb/uhcireg.h> |
56 | #include <dev/usb/uhcivar.h> |
57 | |
58 | struct uhci_cardbus_softc { |
59 | uhci_softc_t sc; |
60 | #if NEHCI_CARDBUS > 0 |
61 | struct usb_cardbus sc_cardbus; |
62 | #endif |
63 | cardbus_chipset_tag_t sc_cc; |
64 | cardbus_function_tag_t sc_cf; |
65 | cardbus_devfunc_t sc_ct; |
66 | pcitag_t sc_tag; |
67 | void *sc_ih; /* interrupt vectoring */ |
68 | }; |
69 | |
70 | static int uhci_cardbus_match(device_t, cfdata_t, void *); |
71 | static void uhci_cardbus_attach(device_t, device_t, void *); |
72 | static int uhci_cardbus_detach(device_t, int); |
73 | |
74 | CFATTACH_DECL_NEW(uhci_cardbus, sizeof(struct uhci_cardbus_softc), |
75 | uhci_cardbus_match, uhci_cardbus_attach, uhci_cardbus_detach, |
76 | uhci_activate); |
77 | |
78 | static int |
79 | uhci_cardbus_match(device_t parent, cfdata_t match, void *aux) |
80 | { |
81 | struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; |
82 | |
83 | if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS && |
84 | PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB && |
85 | PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_UHCI) |
86 | return 1; |
87 | |
88 | return 0; |
89 | } |
90 | |
91 | static void |
92 | uhci_cardbus_attach(device_t parent, device_t self, void *aux) |
93 | { |
94 | struct uhci_cardbus_softc *sc = device_private(self); |
95 | struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux; |
96 | cardbus_devfunc_t ct = ca->ca_ct; |
97 | cardbus_chipset_tag_t cc = ct->ct_cc; |
98 | cardbus_function_tag_t cf = ct->ct_cf; |
99 | pcitag_t tag = ca->ca_tag; |
100 | pcireg_t csr; |
101 | const char *devname = device_xname(self); |
102 | char devinfo[256]; |
103 | |
104 | sc->sc.sc_dev = self; |
105 | sc->sc.sc_bus.ub_hcpriv = sc; |
106 | |
107 | pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); |
108 | printf(": %s (rev. 0x%02x)\n" , devinfo, PCI_REVISION(ca->ca_class)); |
109 | |
110 | /* Map I/O registers */ |
111 | if (Cardbus_mapreg_map(ct, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, |
112 | &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { |
113 | aprint_error("%s: can't map i/o space\n" , devname); |
114 | return; |
115 | } |
116 | |
117 | sc->sc_cc = cc; |
118 | sc->sc_cf = cf; |
119 | sc->sc_ct = ct; |
120 | sc->sc_tag = tag; |
121 | sc->sc.sc_bus.ub_dmatag = ca->ca_dmat; |
122 | |
123 | /* Enable the device. */ |
124 | csr = Cardbus_conf_read(ct, tag, PCI_COMMAND_STATUS_REG); |
125 | Cardbus_conf_write(ct, tag, PCI_COMMAND_STATUS_REG, |
126 | csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE); |
127 | |
128 | /* Disable interrupts, so we don't get any spurious ones. */ |
129 | bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0); |
130 | |
131 | /* Map and establish the interrupt. */ |
132 | sc->sc_ih = Cardbus_intr_establish(ct, IPL_USB, uhci_intr, sc); |
133 | if (sc->sc_ih == NULL) { |
134 | aprint_error("%s: couldn't establish interrupt\n" , devname); |
135 | return; |
136 | } |
137 | |
138 | /* Set LEGSUP register to its default value. */ |
139 | Cardbus_conf_write(ct, tag, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN); |
140 | |
141 | switch(Cardbus_conf_read(ct, tag, PCI_USBREV) & PCI_USBREV_MASK) { |
142 | case PCI_USBREV_PRE_1_0: |
143 | sc->sc.sc_bus.ub_revision = USBREV_PRE_1_0; |
144 | break; |
145 | case PCI_USBREV_1_0: |
146 | sc->sc.sc_bus.ub_revision = USBREV_1_0; |
147 | break; |
148 | case PCI_USBREV_1_1: |
149 | sc->sc.sc_bus.ub_revision = USBREV_1_1; |
150 | break; |
151 | default: |
152 | sc->sc.sc_bus.ub_revision = USBREV_UNKNOWN; |
153 | break; |
154 | } |
155 | |
156 | /* Figure out vendor for root hub descriptor. */ |
157 | sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id); |
158 | pci_findvendor(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), |
159 | sc->sc.sc_id_vendor); |
160 | |
161 | int err = uhci_init(&sc->sc); |
162 | if (err) { |
163 | aprint_error("%s: init failed, error=%d\n" , devname, err); |
164 | |
165 | /* Avoid spurious interrupts. */ |
166 | Cardbus_intr_disestablish(ct, sc->sc_ih); |
167 | sc->sc_ih = NULL; |
168 | |
169 | return; |
170 | } |
171 | |
172 | #if NEHCI_CARDBUS > 0 |
173 | usb_cardbus_add(&sc->sc_cardbus, ca, self); |
174 | #endif |
175 | |
176 | /* Attach usb device. */ |
177 | sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); |
178 | } |
179 | |
180 | static int |
181 | uhci_cardbus_detach(device_t self, int flags) |
182 | { |
183 | struct uhci_cardbus_softc *sc = device_private(self); |
184 | struct cardbus_devfunc *ct = sc->sc_ct; |
185 | int rv; |
186 | |
187 | rv = uhci_detach(&sc->sc, flags); |
188 | if (rv) |
189 | return rv; |
190 | if (sc->sc_ih != NULL) { |
191 | Cardbus_intr_disestablish(ct, sc->sc_ih); |
192 | sc->sc_ih = NULL; |
193 | } |
194 | if (sc->sc.sc_size) { |
195 | Cardbus_mapreg_unmap(ct, PCI_CBIO, sc->sc.iot, |
196 | sc->sc.ioh, sc->sc.sc_size); |
197 | sc->sc.sc_size = 0; |
198 | } |
199 | #if NEHCI_CARDBUS > 0 |
200 | usb_cardbus_rem(&sc->sc_cardbus); |
201 | #endif |
202 | return 0; |
203 | } |
204 | |