macekbc.c revision 1.2.20.2 1 1.2.20.2 yamt /* $NetBSD: macekbc.c,v 1.2.20.2 2007/09/03 14:29:20 yamt Exp $ */
2 1.2.20.2 yamt
3 1.2.20.2 yamt /*-
4 1.2.20.2 yamt * Copyright (c) 2007 Jared D. McNeill <jmcneill (at) invisible.ca>
5 1.2.20.2 yamt * All rights reserved.
6 1.2.20.2 yamt *
7 1.2.20.2 yamt * Redistribution and use in source and binary forms, with or without
8 1.2.20.2 yamt * modification, are permitted provided that the following conditions
9 1.2.20.2 yamt * are met:
10 1.2.20.2 yamt * 1. Redistributions of source code must retain the above copyright
11 1.2.20.2 yamt * notice, this list of conditions and the following disclaimer.
12 1.2.20.2 yamt * 2. Redistributions in binary form must reproduce the above copyright
13 1.2.20.2 yamt * notice, this list of conditions and the following disclaimer in the
14 1.2.20.2 yamt * documentation and/or other materials provided with the distribution.
15 1.2.20.2 yamt * 3. All advertising materials mentioning features or use of this software
16 1.2.20.2 yamt * must display the following acknowledgement:
17 1.2.20.2 yamt * This product includes software developed by Jared D. McNeill.
18 1.2.20.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its
19 1.2.20.2 yamt * contributors may be used to endorse or promote products derived
20 1.2.20.2 yamt * from this software without specific prior written permission.
21 1.2.20.2 yamt *
22 1.2.20.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 1.2.20.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 1.2.20.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 1.2.20.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 1.2.20.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 1.2.20.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 1.2.20.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 1.2.20.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 1.2.20.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 1.2.20.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 1.2.20.2 yamt * POSSIBILITY OF SUCH DAMAGE.
33 1.2.20.2 yamt */
34 1.2.20.2 yamt
35 1.2.20.2 yamt /*
36 1.2.20.2 yamt * SGI MACE PS2 keyboard/mouse controller driver
37 1.2.20.2 yamt */
38 1.2.20.2 yamt
39 1.2.20.2 yamt #include <sys/cdefs.h>
40 1.2.20.2 yamt __KERNEL_RCSID(0, "$NetBSD: macekbc.c,v 1.2.20.2 2007/09/03 14:29:20 yamt Exp $");
41 1.2.20.2 yamt
42 1.2.20.2 yamt #include <sys/param.h>
43 1.2.20.2 yamt #include <sys/device.h>
44 1.2.20.2 yamt #include <sys/syslog.h>
45 1.2.20.2 yamt #include <sys/malloc.h>
46 1.2.20.2 yamt
47 1.2.20.2 yamt #include <machine/bus.h>
48 1.2.20.2 yamt #include <machine/intr.h>
49 1.2.20.2 yamt
50 1.2.20.2 yamt #include <sgimips/mace/macevar.h>
51 1.2.20.2 yamt
52 1.2.20.2 yamt #include <dev/arcbios/arcbios.h>
53 1.2.20.2 yamt #include <dev/arcbios/arcbiosvar.h>
54 1.2.20.2 yamt #include <dev/pckbport/pckbportvar.h>
55 1.2.20.2 yamt
56 1.2.20.2 yamt #define MACEKBC_TX 0x00
57 1.2.20.2 yamt #define MACEKBC_RX 0x08
58 1.2.20.2 yamt #define MACEKBC_CTRL 0x10
59 1.2.20.2 yamt #define MACEKBC_CTRL_TXCLKOFF (1 << 0)
60 1.2.20.2 yamt #define MACEKBC_CTRL_TXON (1 << 1)
61 1.2.20.2 yamt #define MACEKBC_CTRL_TXINTEN (1 << 2)
62 1.2.20.2 yamt #define MACEKBC_CTRL_RXINTEN (1 << 3)
63 1.2.20.2 yamt #define MACEKBC_CTRL_RXCLKON (1 << 4)
64 1.2.20.2 yamt #define MACEKBC_CTRL_RESET (1 << 5)
65 1.2.20.2 yamt #define MACEKBC_STAT 0x18
66 1.2.20.2 yamt #define MACEKBC_STAT_TXEMPTY (1 << 3)
67 1.2.20.2 yamt #define MACEKBC_STAT_RXFULL (1 << 4)
68 1.2.20.2 yamt
69 1.2.20.2 yamt struct macekbc_softc {
70 1.2.20.2 yamt struct device sc_dev;
71 1.2.20.2 yamt struct macekbc_internal *sc_id;
72 1.2.20.2 yamt
73 1.2.20.2 yamt bus_space_tag_t sc_iot;
74 1.2.20.2 yamt bus_space_handle_t sc_ioh;
75 1.2.20.2 yamt };
76 1.2.20.2 yamt
77 1.2.20.2 yamt struct macekbc_internal {
78 1.2.20.2 yamt struct macekbc_softc *t_sc;
79 1.2.20.2 yamt pckbport_tag_t t_pt;
80 1.2.20.2 yamt
81 1.2.20.2 yamt bus_space_tag_t t_iot;
82 1.2.20.2 yamt bus_space_handle_t t_ioh[PCKBPORT_NSLOTS];
83 1.2.20.2 yamt int t_present[PCKBPORT_NSLOTS];
84 1.2.20.2 yamt
85 1.2.20.2 yamt void *t_rxih;
86 1.2.20.2 yamt };
87 1.2.20.2 yamt
88 1.2.20.2 yamt static int macekbc_intr(void *);
89 1.2.20.2 yamt static void macekbc_reset(struct macekbc_internal *, pckbport_slot_t);
90 1.2.20.2 yamt
91 1.2.20.2 yamt static int macekbc_xt_translation(void *, pckbport_slot_t, int);
92 1.2.20.2 yamt static int macekbc_send_devcmd(void *, pckbport_slot_t, u_char);
93 1.2.20.2 yamt static int macekbc_poll_data1(void *, pckbport_slot_t);
94 1.2.20.2 yamt static void macekbc_slot_enable(void *, pckbport_slot_t, int);
95 1.2.20.2 yamt static void macekbc_intr_establish(void *, pckbport_slot_t);
96 1.2.20.2 yamt static void macekbc_set_poll(void *, pckbport_slot_t, int);
97 1.2.20.2 yamt
98 1.2.20.2 yamt static int macekbc_match(struct device *, struct cfdata *, void *);
99 1.2.20.2 yamt static void macekbc_attach(struct device *, struct device *, void *);
100 1.2.20.2 yamt
101 1.2.20.2 yamt CFATTACH_DECL(macekbc, sizeof(struct macekbc_softc),
102 1.2.20.2 yamt macekbc_match, macekbc_attach, NULL, NULL);
103 1.2.20.2 yamt
104 1.2.20.2 yamt static struct pckbport_accessops macekbc_ops = {
105 1.2.20.2 yamt .t_xt_translation = macekbc_xt_translation,
106 1.2.20.2 yamt .t_send_devcmd = macekbc_send_devcmd,
107 1.2.20.2 yamt .t_poll_data1 = macekbc_poll_data1,
108 1.2.20.2 yamt .t_slot_enable = macekbc_slot_enable,
109 1.2.20.2 yamt .t_intr_establish = macekbc_intr_establish,
110 1.2.20.2 yamt .t_set_poll = macekbc_set_poll,
111 1.2.20.2 yamt };
112 1.2.20.2 yamt
113 1.2.20.2 yamt static int
114 1.2.20.2 yamt macekbc_match(struct device *parent, struct cfdata *match, void *aux)
115 1.2.20.2 yamt {
116 1.2.20.2 yamt const char *consdev;
117 1.2.20.2 yamt
118 1.2.20.2 yamt /* XXX don't bother attaching if we're using a serial console */
119 1.2.20.2 yamt consdev = ARCBIOS->GetEnvironmentVariable("ConsoleIn");
120 1.2.20.2 yamt if (consdev == NULL || strcmp(consdev, "keyboard()") != 0)
121 1.2.20.2 yamt return 0;
122 1.2.20.2 yamt
123 1.2.20.2 yamt return 1;
124 1.2.20.2 yamt }
125 1.2.20.2 yamt
126 1.2.20.2 yamt static void
127 1.2.20.2 yamt macekbc_attach(struct device *parent, struct device *self, void *aux)
128 1.2.20.2 yamt {
129 1.2.20.2 yamt struct mace_attach_args *maa;
130 1.2.20.2 yamt struct macekbc_softc *sc;
131 1.2.20.2 yamt struct macekbc_internal *t;
132 1.2.20.2 yamt int slot;
133 1.2.20.2 yamt
134 1.2.20.2 yamt maa = aux;
135 1.2.20.2 yamt sc = device_private(self);
136 1.2.20.2 yamt
137 1.2.20.2 yamt aprint_normal(": PS2 controller\n");
138 1.2.20.2 yamt aprint_naive("\n");
139 1.2.20.2 yamt
140 1.2.20.2 yamt t = malloc(sizeof(struct macekbc_internal), M_DEVBUF, M_NOWAIT|M_ZERO);
141 1.2.20.2 yamt if (t == NULL) {
142 1.2.20.2 yamt aprint_error("%s: not enough memory\n", device_xname(self));
143 1.2.20.2 yamt return;
144 1.2.20.2 yamt }
145 1.2.20.2 yamt t->t_iot = maa->maa_st;
146 1.2.20.2 yamt for (slot = 0; slot < PCKBPORT_NSLOTS; slot++)
147 1.2.20.2 yamt t->t_present[slot] = 0;
148 1.2.20.2 yamt if (bus_space_subregion(t->t_iot, maa->maa_sh, maa->maa_offset,
149 1.2.20.2 yamt 0, &t->t_ioh[PCKBPORT_KBD_SLOT]) != 0) {
150 1.2.20.2 yamt aprint_error("%s: couldn't map kbd registers\n",
151 1.2.20.2 yamt device_xname(self));
152 1.2.20.2 yamt return;
153 1.2.20.2 yamt }
154 1.2.20.2 yamt if (bus_space_subregion(t->t_iot, maa->maa_sh, maa->maa_offset + 32,
155 1.2.20.2 yamt 0, &t->t_ioh[PCKBPORT_AUX_SLOT]) != 0) {
156 1.2.20.2 yamt aprint_error("%s: couldn't map aux registers\n",
157 1.2.20.2 yamt device_xname(self));
158 1.2.20.2 yamt return;
159 1.2.20.2 yamt }
160 1.2.20.2 yamt
161 1.2.20.2 yamt if ((t->t_rxih = cpu_intr_establish(maa->maa_intr, maa->maa_intrmask,
162 1.2.20.2 yamt macekbc_intr, t)) == NULL) {
163 1.2.20.2 yamt printf("%s: couldn't establish interrupt\n",
164 1.2.20.2 yamt device_xname(self));
165 1.2.20.2 yamt return;
166 1.2.20.2 yamt }
167 1.2.20.2 yamt sc->sc_id = t;
168 1.2.20.2 yamt t->t_sc = sc;
169 1.2.20.2 yamt
170 1.2.20.2 yamt macekbc_reset(t, PCKBPORT_KBD_SLOT);
171 1.2.20.2 yamt macekbc_reset(t, PCKBPORT_AUX_SLOT);
172 1.2.20.2 yamt
173 1.2.20.2 yamt t->t_pt = pckbport_attach(t, &macekbc_ops);
174 1.2.20.2 yamt if (pckbport_attach_slot(&sc->sc_dev, t->t_pt, PCKBPORT_KBD_SLOT))
175 1.2.20.2 yamt t->t_present[PCKBPORT_KBD_SLOT] = 1;
176 1.2.20.2 yamt if (pckbport_attach_slot(&sc->sc_dev, t->t_pt, PCKBPORT_AUX_SLOT))
177 1.2.20.2 yamt t->t_present[PCKBPORT_AUX_SLOT] = 1;
178 1.2.20.2 yamt
179 1.2.20.2 yamt return;
180 1.2.20.2 yamt }
181 1.2.20.2 yamt
182 1.2.20.2 yamt static int
183 1.2.20.2 yamt macekbc_intr(void *opaque)
184 1.2.20.2 yamt {
185 1.2.20.2 yamt struct macekbc_internal *t;
186 1.2.20.2 yamt bus_space_tag_t iot;
187 1.2.20.2 yamt bus_space_handle_t ioh;
188 1.2.20.2 yamt uint64_t stat, val;
189 1.2.20.2 yamt pckbport_slot_t slot;
190 1.2.20.2 yamt int rv;
191 1.2.20.2 yamt
192 1.2.20.2 yamt t = opaque;
193 1.2.20.2 yamt iot = t->t_iot;
194 1.2.20.2 yamt rv = 0;
195 1.2.20.2 yamt
196 1.2.20.2 yamt for (slot = 0; slot < PCKBPORT_NSLOTS; slot++) {
197 1.2.20.2 yamt if (t->t_present[slot] == 0)
198 1.2.20.2 yamt continue;
199 1.2.20.2 yamt
200 1.2.20.2 yamt ioh = t->t_ioh[slot];
201 1.2.20.2 yamt stat = bus_space_read_8(iot, ioh, MACEKBC_STAT);
202 1.2.20.2 yamt if (stat & MACEKBC_STAT_RXFULL) {
203 1.2.20.2 yamt val = bus_space_read_8(iot, ioh, MACEKBC_RX);
204 1.2.20.2 yamt pckbportintr(t->t_pt, slot, val & 0xff);
205 1.2.20.2 yamt rv = 1;
206 1.2.20.2 yamt }
207 1.2.20.2 yamt }
208 1.2.20.2 yamt
209 1.2.20.2 yamt return rv;
210 1.2.20.2 yamt }
211 1.2.20.2 yamt
212 1.2.20.2 yamt static void
213 1.2.20.2 yamt macekbc_reset(struct macekbc_internal *t, pckbport_slot_t slot)
214 1.2.20.2 yamt {
215 1.2.20.2 yamt bus_space_tag_t iot;
216 1.2.20.2 yamt bus_space_handle_t ioh;
217 1.2.20.2 yamt uint64_t val;
218 1.2.20.2 yamt
219 1.2.20.2 yamt iot = t->t_iot;
220 1.2.20.2 yamt ioh = t->t_ioh[slot];
221 1.2.20.2 yamt
222 1.2.20.2 yamt val = bus_space_read_8(iot, ioh, MACEKBC_CTRL);
223 1.2.20.2 yamt val |= MACEKBC_CTRL_TXCLKOFF | MACEKBC_CTRL_RESET;
224 1.2.20.2 yamt bus_space_write_8(iot, ioh, MACEKBC_CTRL, val);
225 1.2.20.2 yamt
226 1.2.20.2 yamt delay(10000);
227 1.2.20.2 yamt
228 1.2.20.2 yamt val &= ~(MACEKBC_CTRL_TXCLKOFF | MACEKBC_CTRL_RESET);
229 1.2.20.2 yamt val |= MACEKBC_CTRL_TXON | MACEKBC_CTRL_RXCLKON | MACEKBC_CTRL_RXINTEN;
230 1.2.20.2 yamt bus_space_write_8(iot, ioh, MACEKBC_CTRL, val);
231 1.2.20.2 yamt
232 1.2.20.2 yamt return;
233 1.2.20.2 yamt }
234 1.2.20.2 yamt
235 1.2.20.2 yamt static int
236 1.2.20.2 yamt macekbc_wait(struct macekbc_internal *t, pckbport_slot_t slot,
237 1.2.20.2 yamt uint64_t mask, bool set)
238 1.2.20.2 yamt {
239 1.2.20.2 yamt bus_space_tag_t iot;
240 1.2.20.2 yamt bus_space_handle_t ioh;
241 1.2.20.2 yamt uint64_t val, tmp;
242 1.2.20.2 yamt int timeout;
243 1.2.20.2 yamt
244 1.2.20.2 yamt iot = t->t_iot;
245 1.2.20.2 yamt ioh = t->t_ioh[slot];
246 1.2.20.2 yamt val = (set ? mask : 0);
247 1.2.20.2 yamt timeout = 1000;
248 1.2.20.2 yamt
249 1.2.20.2 yamt while (timeout-- > 0) {
250 1.2.20.2 yamt tmp = bus_space_read_8(iot, ioh, MACEKBC_STAT);
251 1.2.20.2 yamt if ((tmp & mask) == val)
252 1.2.20.2 yamt return 0;
253 1.2.20.2 yamt delay(10);
254 1.2.20.2 yamt }
255 1.2.20.2 yamt
256 1.2.20.2 yamt return 1;
257 1.2.20.2 yamt }
258 1.2.20.2 yamt
259 1.2.20.2 yamt static int
260 1.2.20.2 yamt macekbc_xt_translation(void *opaque, pckbport_slot_t port, int on)
261 1.2.20.2 yamt {
262 1.2.20.2 yamt
263 1.2.20.2 yamt if (on)
264 1.2.20.2 yamt return 0;
265 1.2.20.2 yamt
266 1.2.20.2 yamt return 1;
267 1.2.20.2 yamt }
268 1.2.20.2 yamt
269 1.2.20.2 yamt static int
270 1.2.20.2 yamt macekbc_send_devcmd(void *opaque, pckbport_slot_t slot, u_char byte)
271 1.2.20.2 yamt {
272 1.2.20.2 yamt struct macekbc_internal *t;
273 1.2.20.2 yamt bus_space_tag_t iot;
274 1.2.20.2 yamt bus_space_handle_t ioh;
275 1.2.20.2 yamt
276 1.2.20.2 yamt t = opaque;
277 1.2.20.2 yamt iot = t->t_iot;
278 1.2.20.2 yamt ioh = t->t_ioh[slot];
279 1.2.20.2 yamt
280 1.2.20.2 yamt if (macekbc_wait(t, slot, MACEKBC_STAT_TXEMPTY, 1))
281 1.2.20.2 yamt return 0;
282 1.2.20.2 yamt
283 1.2.20.2 yamt bus_space_write_8(iot, ioh, MACEKBC_TX, byte & 0xff);
284 1.2.20.2 yamt
285 1.2.20.2 yamt return 1;
286 1.2.20.2 yamt }
287 1.2.20.2 yamt
288 1.2.20.2 yamt static int
289 1.2.20.2 yamt macekbc_poll_data1(void *opaque, pckbport_slot_t slot)
290 1.2.20.2 yamt {
291 1.2.20.2 yamt struct macekbc_internal *t;
292 1.2.20.2 yamt bus_space_tag_t iot;
293 1.2.20.2 yamt bus_space_handle_t ioh;
294 1.2.20.2 yamt
295 1.2.20.2 yamt t = opaque;
296 1.2.20.2 yamt iot = t->t_iot;
297 1.2.20.2 yamt ioh = t->t_ioh[slot];
298 1.2.20.2 yamt
299 1.2.20.2 yamt if (macekbc_wait(t, slot, MACEKBC_STAT_RXFULL, 1)) /* rx full */
300 1.2.20.2 yamt return -1;
301 1.2.20.2 yamt
302 1.2.20.2 yamt return bus_space_read_8(iot, ioh, MACEKBC_RX) & 0xff;
303 1.2.20.2 yamt }
304 1.2.20.2 yamt
305 1.2.20.2 yamt static void
306 1.2.20.2 yamt macekbc_slot_enable(void *opaque, pckbport_slot_t slot, int on)
307 1.2.20.2 yamt {
308 1.2.20.2 yamt struct macekbc_internal *t;
309 1.2.20.2 yamt bus_space_tag_t iot;
310 1.2.20.2 yamt bus_space_handle_t ioh;
311 1.2.20.2 yamt uint64_t val;
312 1.2.20.2 yamt
313 1.2.20.2 yamt t = opaque;
314 1.2.20.2 yamt iot = t->t_iot;
315 1.2.20.2 yamt ioh = t->t_ioh[slot];
316 1.2.20.2 yamt
317 1.2.20.2 yamt val = bus_space_read_8(iot, ioh, MACEKBC_CTRL);
318 1.2.20.2 yamt if (on)
319 1.2.20.2 yamt val |= MACEKBC_CTRL_TXON | MACEKBC_CTRL_RXCLKON;
320 1.2.20.2 yamt else
321 1.2.20.2 yamt val &= ~(MACEKBC_CTRL_TXON | MACEKBC_CTRL_RXCLKON);
322 1.2.20.2 yamt bus_space_write_8(iot, ioh, MACEKBC_CTRL, val);
323 1.2.20.2 yamt
324 1.2.20.2 yamt return;
325 1.2.20.2 yamt }
326 1.2.20.2 yamt
327 1.2.20.2 yamt static void
328 1.2.20.2 yamt macekbc_intr_establish(void *opaque, pckbport_slot_t slot)
329 1.2.20.2 yamt {
330 1.2.20.2 yamt
331 1.2.20.2 yamt /* XXX */
332 1.2.20.2 yamt macekbc_set_poll(opaque, slot, 0);
333 1.2.20.2 yamt
334 1.2.20.2 yamt return;
335 1.2.20.2 yamt }
336 1.2.20.2 yamt
337 1.2.20.2 yamt static void
338 1.2.20.2 yamt macekbc_set_poll(void *opaque, pckbport_slot_t slot, int on)
339 1.2.20.2 yamt {
340 1.2.20.2 yamt struct macekbc_internal *t;
341 1.2.20.2 yamt bus_space_tag_t iot;
342 1.2.20.2 yamt bus_space_handle_t ioh;
343 1.2.20.2 yamt uint64_t val;
344 1.2.20.2 yamt
345 1.2.20.2 yamt t = opaque;
346 1.2.20.2 yamt iot = t->t_iot;
347 1.2.20.2 yamt ioh = t->t_ioh[slot];
348 1.2.20.2 yamt
349 1.2.20.2 yamt val = bus_space_read_8(iot, ioh, MACEKBC_CTRL);
350 1.2.20.2 yamt if (on)
351 1.2.20.2 yamt val &= ~MACEKBC_CTRL_RXINTEN;
352 1.2.20.2 yamt else
353 1.2.20.2 yamt val |= MACEKBC_CTRL_RXINTEN;
354 1.2.20.2 yamt bus_space_write_8(iot, ioh, MACEKBC_CTRL, val);
355 1.2.20.2 yamt
356 1.2.20.2 yamt return;
357 1.2.20.2 yamt }
358