1 /* $NetBSD: slhci_intio.c,v 1.16 2024/01/07 07:58:33 isaki Exp $ */
2
3 /*
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tetsuya Isaki.
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 /*
33 * USB part of Nereid Ethernet/USB/Memory board
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: slhci_intio.c,v 1.16 2024/01/07 07:58:33 isaki Exp $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/device.h>
42
43 #include <machine/bus.h>
44 #include <machine/cpu.h>
45
46 #include <dev/usb/usb.h>
47 #include <dev/usb/usbdi.h>
48 #include <dev/usb/usbdivar.h>
49
50 #include <dev/ic/sl811hsreg.h>
51 #include <dev/ic/sl811hsvar.h>
52
53 #include <arch/x68k/dev/intiovar.h>
54
55 #include <arch/x68k/dev/slhci_intio_var.h>
56
57 static int slhci_intio_match(device_t, cfdata_t, void *);
58 static void slhci_intio_attach(device_t, device_t, void *);
59 static void slhci_intio_enable_power(void *, enum power_change);
60 static void slhci_intio_enable_intr(void *, int);
61
62 CFATTACH_DECL_NEW(slhci_intio, sizeof(struct slhci_intio_softc),
63 slhci_intio_match, slhci_intio_attach, NULL, NULL);
64
65 #define INTR_ON 1
66 #define INTR_OFF 0
67
68 static int
slhci_intio_match(device_t parent,cfdata_t cf,void * aux)69 slhci_intio_match(device_t parent, cfdata_t cf, void *aux)
70 {
71 struct intio_attach_args *ia = aux;
72 bus_space_tag_t iot = ia->ia_bst;
73 bus_space_handle_t ioh;
74 bus_space_handle_t nch;
75 int nc_addr;
76 int nc_size;
77
78 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT)
79 ia->ia_addr = SLHCI_INTIO_ADDR1;
80 if (ia->ia_intr == INTIOCF_INTR_DEFAULT)
81 ia->ia_intr = SLHCI_INTIO_INTR1;
82
83 /* fixed parameters */
84 if ( !(ia->ia_addr == SLHCI_INTIO_ADDR1 &&
85 ia->ia_intr == SLHCI_INTIO_INTR1 ) &&
86 !(ia->ia_addr == SLHCI_INTIO_ADDR2 &&
87 ia->ia_intr == SLHCI_INTIO_INTR2 ) )
88 return 0;
89
90 /* Whether the SL811 port is accessible or not */
91 if (badaddr((void *)IIOV(ia->ia_addr)))
92 return 0;
93
94 /* Whether the control port is accessible or not */
95 nc_addr = ia->ia_addr + NEREID_ADDR_OFFSET;
96 nc_size = 0x02;
97 if (badbaddr((void *)IIOV(nc_addr)))
98 return 0;
99
100 /* Map two I/O spaces */
101 ia->ia_size = SL11_PORTSIZE * 2;
102 if (bus_space_map(iot, ia->ia_addr, ia->ia_size,
103 BUS_SPACE_MAP_SHIFTED, &ioh))
104 return 0;
105
106 if (bus_space_map(iot, nc_addr, nc_size,
107 BUS_SPACE_MAP_SHIFTED, &nch))
108 return 0;
109
110 bus_space_unmap(iot, ioh, ia->ia_size);
111 bus_space_unmap(iot, nch, nc_size);
112
113 return 1;
114 }
115
116 static void
slhci_intio_attach(device_t parent,device_t self,void * aux)117 slhci_intio_attach(device_t parent, device_t self, void *aux)
118 {
119 struct slhci_intio_softc *isc = device_private(self);
120 struct slhci_softc *sc = &isc->sc_sc;
121 struct intio_attach_args *ia = aux;
122 bus_space_tag_t iot = ia->ia_bst;
123 bus_space_handle_t ioh;
124 int nc_addr;
125 int nc_size;
126
127 sc->sc_dev = self;
128 sc->sc_bus.ub_hcpriv = sc;
129
130 printf(": Nereid USB\n");
131
132 /* Map I/O space */
133 if (bus_space_map(iot, ia->ia_addr, SL11_PORTSIZE * 2,
134 BUS_SPACE_MAP_SHIFTED, &ioh)) {
135 printf("%s: can't map I/O space\n",
136 device_xname(self));
137 return;
138 }
139
140 nc_addr = ia->ia_addr + NEREID_ADDR_OFFSET;
141 nc_size = 0x02;
142 if (bus_space_map(iot, nc_addr, nc_size,
143 BUS_SPACE_MAP_SHIFTED, &isc->sc_nch)) {
144 printf("%s: can't map I/O control space\n",
145 device_xname(self));
146 return;
147 }
148
149 /* Initialize sc */
150 slhci_preinit(sc, slhci_intio_enable_power, iot, ioh, 30,
151 SL11_IDX_DATA);
152
153 /* Establish the interrupt handler */
154 if (intio_intr_establish(ia->ia_intr, "slhci", slhci_intr, sc)) {
155 printf("%s: can't establish interrupt\n",
156 device_xname(self));
157 return;
158 }
159
160 /* Reset controller */
161 bus_space_write_1(iot, isc->sc_nch, NEREID_CTRL, NEREID_CTRL_RESET);
162 delay(40000);
163
164 slhci_intio_enable_intr(sc, INTR_ON);
165
166 /* Attach SL811HS/T */
167 if (slhci_attach(sc))
168 return;
169 }
170
171 static void
slhci_intio_enable_power(void * arg,enum power_change mode)172 slhci_intio_enable_power(void *arg, enum power_change mode)
173 {
174 struct slhci_intio_softc *sc = arg;
175 bus_space_tag_t iot = sc->sc_sc.sc_iot;
176 u_int8_t r;
177
178 r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
179 if (mode == POWER_ON)
180 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
181 r | NEREID_CTRL_POWER);
182 else
183 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
184 r & ~NEREID_CTRL_POWER);
185 }
186
187 static void
slhci_intio_enable_intr(void * arg,int mode)188 slhci_intio_enable_intr(void *arg, int mode)
189 {
190 struct slhci_intio_softc *sc = arg;
191 bus_space_tag_t iot = sc->sc_sc.sc_iot;
192 u_int8_t r;
193
194 r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
195 if (mode == INTR_ON)
196 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
197 r | NEREID_CTRL_INTR);
198 else
199 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
200 r & ~NEREID_CTRL_INTR);
201 }
202
203