1 /* $NetBSD: ms_ap.c,v 1.14 2021/08/07 16:19:01 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2000 Tsubai Masanari. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: ms_ap.c,v 1.14 2021/08/07 16:19:01 thorpej Exp $");
31
32 #include <sys/param.h>
33 #include <sys/device.h>
34 #include <sys/systm.h>
35
36 #include <dev/wscons/wsconsio.h>
37 #include <dev/wscons/wsmousevar.h>
38
39 #include <machine/adrsmap.h>
40 #include <newsmips/apbus/apbusvar.h>
41
42 struct msreg {
43 volatile uint32_t ms_data;
44 volatile uint32_t ms_stat;
45 volatile uint32_t ms_intr_en;
46 volatile uint32_t ms_reset;
47 volatile uint32_t ms_speed;
48 };
49
50 struct ms_ap_softc {
51 device_t sc_dev;
52 struct msreg *sc_reg;
53 device_t sc_wsmousedev;
54 int sc_ndata;
55 uint8_t sc_buf[3];
56 };
57
58 int ms_ap_match(device_t, cfdata_t, void *);
59 void ms_ap_attach(device_t, device_t, void *);
60 int ms_ap_intr(void *);
61
62 int ms_ap_enable(void *);
63 int ms_ap_ioctl(void *, u_long, void *, int, struct lwp *);
64 void ms_ap_disable(void *);
65
66 CFATTACH_DECL_NEW(ms_ap, sizeof(struct ms_ap_softc),
67 ms_ap_match, ms_ap_attach, NULL, NULL);
68
69 struct wsmouse_accessops ms_ap_accessops = {
70 ms_ap_enable,
71 ms_ap_ioctl,
72 ms_ap_disable
73 };
74
75 int
ms_ap_match(device_t parent,cfdata_t cf,void * aux)76 ms_ap_match(device_t parent, cfdata_t cf, void *aux)
77 {
78 struct apbus_attach_args *apa = aux;
79
80 if (strcmp(apa->apa_name, "ms") == 0)
81 return 1;
82
83 return 0;
84 }
85
86 void
ms_ap_attach(device_t parent,device_t self,void * aux)87 ms_ap_attach(device_t parent, device_t self, void *aux)
88 {
89 struct ms_ap_softc *sc = device_private(self);
90 struct apbus_attach_args *apa = aux;
91 struct msreg *reg = (void *)apa->apa_hwbase;
92 struct wsmousedev_attach_args aa;
93
94 sc->sc_dev = self;
95 aprint_normal(" slot%d addr 0x%lx\n", apa->apa_slotno, apa->apa_hwbase);
96
97 sc->sc_reg = reg;
98
99 reg->ms_reset = 0x03;
100 reg->ms_speed = 0x01;
101 reg->ms_intr_en = 0;
102
103 apbus_intr_establish(1, NEWS5000_INT1_KBD, 0, ms_ap_intr, sc,
104 device_xname(self), apa->apa_ctlnum);
105
106 aa.accessops = &ms_ap_accessops;
107 aa.accesscookie = sc;
108 sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint, CFARGS_NONE);
109 }
110
111 int
ms_ap_intr(void * v)112 ms_ap_intr(void *v)
113 {
114 struct ms_ap_softc *sc = v;
115 struct msreg *reg = sc->sc_reg;
116 int code, index, byte0, byte1, byte2;
117 int button, dx, dy;
118 int rv = 0;
119
120 reg->ms_intr_en = 0;
121
122 while (reg->ms_stat & RX_MSRDY) {
123 rv = 1;
124 code = reg->ms_data;
125 index = sc->sc_ndata;
126
127 if (sc->sc_wsmousedev == NULL)
128 continue;
129
130 if (code & 0x80) {
131 sc->sc_buf[0] = code;
132 sc->sc_ndata = 1;
133 continue;
134 }
135
136 if (index == 1) {
137 sc->sc_buf[1] = code;
138 sc->sc_ndata++;
139 continue;
140 }
141
142 if (index == 2) {
143 sc->sc_buf[2] = code;
144 sc->sc_ndata++;
145
146 byte0 = sc->sc_buf[0];
147 byte1 = sc->sc_buf[1];
148 byte2 = sc->sc_buf[2];
149
150 button = 0;
151 if (byte0 & 0x01)
152 button |= 1;
153 if (byte0 & 0x04)
154 button |= 2;
155 if (byte0 & 0x02)
156 button |= 4;
157
158 if (byte0 & 0x08)
159 dx = byte1 - 0x80;
160 else
161 dx = byte1;
162 if (byte0 & 0x10)
163 dy = byte2 - 0x80;
164 else
165 dy = byte2;
166
167 wsmouse_input(sc->sc_wsmousedev,
168 button,
169 dx, -dy, 0, 0,
170 WSMOUSE_INPUT_DELTA);
171 }
172 }
173
174 reg->ms_intr_en = 1;
175 return rv;
176 }
177
178 int
ms_ap_enable(void * v)179 ms_ap_enable(void *v)
180 {
181 struct ms_ap_softc *sc = v;
182 struct msreg *reg = sc->sc_reg;
183
184 reg->ms_intr_en = 1;
185 return 0;
186 }
187
188 void
ms_ap_disable(void * v)189 ms_ap_disable(void *v)
190 {
191 struct ms_ap_softc *sc = v;
192 struct msreg *reg = sc->sc_reg;
193
194 reg->ms_intr_en = 0;
195 }
196
197 int
ms_ap_ioctl(void * v,u_long cmd,void * data,int flag,struct lwp * l)198 ms_ap_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
199 {
200
201 return EPASSTHROUGH;
202 }
203