1 /* $NetBSD: rmixl_ohci.c,v 1.8 2021/11/10 17:19:29 msaitoh Exp $ */
2
3 /*-
4 * Copyright (c) 1998, 1999, 2000, 2002, 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Herb Peyerl of Middle Digital Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "locators.h"
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: rmixl_ohci.c,v 1.8 2021/11/10 17:19:29 msaitoh Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/device.h>
40
41 #include <sys/bus.h>
42
43 #include <mips/rmi/rmixlreg.h>
44 #include <mips/rmi/rmixlvar.h>
45 #include <mips/rmi/rmixl_intr.h>
46 #include <mips/rmi/rmixl_usbivar.h>
47
48 #include <dev/usb/usb.h>
49 #include <dev/usb/usbdi.h>
50 #include <dev/usb/usbdivar.h>
51 #include <dev/usb/usb_mem.h>
52
53 #include <dev/usb/ohcireg.h>
54 #include <dev/usb/ohcivar.h>
55
56
57 static int rmixl_ohci_match(device_t, cfdata_t, void *);
58 static void rmixl_ohci_attach(device_t, device_t, void *);
59
60
61 CFATTACH_DECL_NEW(rmixl_ohci, sizeof (ohci_softc_t),
62 rmixl_ohci_match, rmixl_ohci_attach, NULL, NULL);
63
64 int
rmixl_ohci_match(device_t parent,cfdata_t match,void * aux)65 rmixl_ohci_match(device_t parent, cfdata_t match, void *aux)
66 {
67 struct rmixl_usbi_attach_args *usbi = aux;
68
69 if ((usbi->usbi_addr == (RMIXL_IO_DEV_USB_A+RMIXL_USB_HOST_0HCI0_BASE))
70 || (usbi->usbi_addr == (RMIXL_IO_DEV_USB_A+RMIXL_USB_HOST_0HCI1_BASE)))
71 return rmixl_probe_4((volatile uint32_t *)
72 RMIXL_IOREG_VADDR(usbi->usbi_addr));
73
74 return 0;
75 }
76
77 void
rmixl_ohci_attach(device_t parent,device_t self,void * aux)78 rmixl_ohci_attach(device_t parent, device_t self, void *aux)
79 {
80 ohci_softc_t * const sc = device_private(self);
81 rmixl_usbi_softc_t * const psc = device_private(parent);
82 struct rmixl_usbi_attach_args * const usbi = aux;
83 void *ih = NULL;
84 uint32_t r;
85
86 /* check state of IO_AD9 signal latched in GPIO Reset Config reg */
87 r = RMIXL_IOREG_READ(RMIXL_IO_DEV_GPIO + RMIXL_GPIO_RESET_CFG);
88 if ((r & RMIXL_GPIO_RESET_CFG_USB_DEV) == 0) {
89 aprint_error_dev(self,
90 "IO_AD9 selects Device mode, abort Host attach\n");
91 return;
92 }
93
94 sc->sc_dev = self;
95 sc->iot = usbi->usbi_el_bst;
96 sc->sc_size = usbi->usbi_size;
97 sc->sc_bus.ub_dmatag = usbi->usbi_dmat;
98 sc->sc_bus.ub_hcpriv = sc;
99
100 if (bus_space_map(sc->iot, usbi->usbi_addr, sc->sc_size, 0, &sc->ioh)) {
101 aprint_error_dev(self, "unable to map registers\n");
102 return;
103 }
104
105 /* Disable OHCI interrupts */
106 bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
107 OHCI_ALL_INTRS);
108
109 /* establish interrupt */
110 if (usbi->usbi_intr != RMIXL_USBICF_INTR_DEFAULT) {
111 ih = rmixl_usbi_intr_establish(device_private(parent),
112 usbi->usbi_intr, ohci_intr, sc);
113 if (ih == NULL)
114 panic("%s: couldn't establish interrupt",
115 device_xname(self));
116 }
117
118 /* we handle endianness in bus space */
119 sc->sc_endian = OHCI_HOST_ENDIAN;
120
121 int err = ohci_init(sc);
122 if (err) {
123 aprint_error_dev(self, "init failed, error=%d\n", err);
124 if (ih != NULL)
125 rmixl_intr_disestablish(ih);
126 return;
127 }
128
129 if (psc->sc_ohci_devs[0] == NULL) {
130 psc->sc_ohci_devs[0] = self;
131 } else if (psc->sc_ohci_devs[1] == NULL) {
132 psc->sc_ohci_devs[1] = self;
133 } else {
134 panic("%s: too many ohci devices", __func__);
135 }
136
137 /* Attach USB device */
138 sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint, CFARGS_NONE);
139 }
140