1 /* $NetBSD: nextkbd.c,v 1.19 2023/02/03 23:13:00 tsutsui Exp $ */ 2 /* 3 * Copyright (c) 1998 Matt DeBergalis 4 * 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Matt DeBergalis 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: nextkbd.c,v 1.19 2023/02/03 23:13:00 tsutsui Exp $"); 34 35 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/proc.h> 41 #include <sys/device.h> 42 #include <sys/kmem.h> 43 #include <sys/errno.h> 44 #include <sys/queue.h> 45 #include <sys/bus.h> 46 #include <sys/cpu.h> 47 #include <sys/intr.h> 48 49 #include <machine/autoconf.h> 50 51 #include <dev/wscons/wsconsio.h> 52 #include <dev/wscons/wskbdvar.h> 53 #include <dev/wscons/wsksymdef.h> 54 #include <dev/wscons/wsksymvar.h> 55 56 #include <next68k/dev/nextkbdvar.h> 57 #include <next68k/dev/wskbdmap_next.h> 58 59 #include <next68k/next68k/isr.h> 60 61 #include <next68k/dev/intiovar.h> 62 63 struct nextkbd_internal { 64 int num_ints; /* interrupt total */ 65 int polling; 66 int isconsole; 67 68 bus_space_tag_t iot; 69 bus_space_handle_t ioh; 70 struct nextkbd_softc *t_sc; /* back pointer */ 71 uint32_t mods; 72 }; 73 74 struct mon_regs { 75 uint32_t mon_csr; 76 uint32_t mon_1; 77 uint32_t mon_data; 78 }; 79 80 static int attached = 0; 81 82 int nextkbd_match(device_t, cfdata_t, void *); 83 void nextkbd_attach(device_t, device_t, void *); 84 85 int nextkbc_cnattach(bus_space_tag_t); 86 87 CFATTACH_DECL_NEW(nextkbd, sizeof(struct nextkbd_softc), 88 nextkbd_match, nextkbd_attach, NULL, NULL); 89 90 int nextkbd_enable(void *, int); 91 void nextkbd_set_leds(void *, int); 92 int nextkbd_ioctl(void *, u_long, void *, int, struct lwp *); 93 94 const struct wskbd_accessops nextkbd_accessops = { 95 nextkbd_enable, 96 nextkbd_set_leds, 97 nextkbd_ioctl, 98 }; 99 100 void nextkbd_cngetc(void *, u_int *, int *); 101 void nextkbd_cnpollc(void *, int); 102 103 const struct wskbd_consops nextkbd_consops = { 104 nextkbd_cngetc, 105 nextkbd_cnpollc, 106 }; 107 108 const struct wskbd_mapdata nextkbd_keymapdata = { 109 nextkbd_keydesctab, 110 KB_US, 111 }; 112 113 static int nextkbd_read_data(struct nextkbd_internal *); 114 static int nextkbd_decode(struct nextkbd_internal *, int, u_int *, int *); 115 116 static struct nextkbd_internal nextkbd_consdata; 117 static int nextkbd_is_console(bus_space_tag_t); 118 119 int nextkbdhard(void *); 120 121 static int 122 nextkbd_is_console(bus_space_tag_t bst) 123 { 124 125 return (nextkbd_consdata.isconsole && (bst == nextkbd_consdata.iot)); 126 } 127 128 int 129 nextkbd_match(device_t parent, cfdata_t match, void *aux) 130 { 131 struct intio_attach_args *ia = (struct intio_attach_args *)aux; 132 133 if (attached) 134 return 0; 135 136 ia->ia_addr = (void *)NEXT_P_MON; 137 138 return 1; 139 } 140 141 void 142 nextkbd_attach(device_t parent, device_t self, void *aux) 143 { 144 struct nextkbd_softc *sc = device_private(self); 145 struct intio_attach_args *ia = aux; 146 int isconsole; 147 struct wskbddev_attach_args a; 148 149 printf("\n"); 150 151 isconsole = nextkbd_is_console(ia->ia_bst); /* XXX */ 152 153 if (isconsole) { 154 sc->id = &nextkbd_consdata; 155 } else { 156 sc->id = kmem_zalloc(sizeof(struct nextkbd_internal), KM_SLEEP); 157 158 sc->id->iot = ia->ia_bst; 159 if (bus_space_map(sc->id->iot, NEXT_P_MON, 160 sizeof(struct mon_regs), 0, &sc->id->ioh)) { 161 printf("%s: can't map mon status control register\n", 162 device_xname(self)); 163 return; 164 } 165 } 166 167 sc->id->t_sc = sc; /* set back pointer */ 168 169 isrlink_autovec(nextkbdhard, sc, NEXT_I_IPL(NEXT_I_KYBD_MOUSE), 170 0, NULL); 171 172 INTR_ENABLE(NEXT_I_KYBD_MOUSE); 173 174 a.console = isconsole; 175 a.keymap = &nextkbd_keymapdata; 176 a.accessops = &nextkbd_accessops; 177 a.accesscookie = sc; 178 179 /* 180 * Attach the wskbd, saving a handle to it. 181 * XXX XXX XXX 182 */ 183 sc->sc_wskbddev = config_found(self, &a, wskbddevprint, CFARGS_NONE); 184 185 attached = 1; 186 } 187 188 int 189 nextkbd_enable(void *v, int on) 190 { 191 192 /* XXX not sure if this should do anything */ 193 /* printf("nextkbd_enable %d\n", on); */ 194 return 0; 195 } 196 197 void 198 nextkbd_set_leds(void *v, int leds) 199 { 200 struct nextkbd_softc *sc = v; 201 uint32_t hw_leds = 0; 202 int s; 203 204 sc->sc_leds &= ~ NEXT_WSKBD_LEDS; 205 sc->sc_leds |= (leds & NEXT_WSKBD_LEDS); 206 207 if (sc->sc_leds & WSKBD_LED_CAPS) { 208 hw_leds |= 0x30000; 209 } 210 211 s = spltty(); 212 bus_space_write_1(sc->id->iot, sc->id->ioh, 3, 0xc5); 213 /* 214 * @@@ need to add: 215 * if bit 7 of @ioh+0 set: 216 * repeat 2 217 * wait until bit 6 of @ioh+2 clears 218 */ 219 bus_space_write_4(sc->id->iot, sc->id->ioh, 4, hw_leds); 220 /* 221 * @@@ need to add: 222 * wait until bit 4 of @ioh+0 (@ioh+2 if bit 7 was set above) 223 * clears 224 */ 225 splx(s); 226 } 227 228 int 229 nextkbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 230 { 231 struct nextkbd_softc *sc = v; 232 233 switch (cmd) { 234 case WSKBDIO_GTYPE: 235 /* XXX */ 236 *(int *)data = WSKBD_TYPE_NEXT; 237 return 0; 238 case WSKBDIO_SETLEDS: 239 nextkbd_set_leds (sc, *(int *)data); 240 return 0; 241 case WSKBDIO_GETLEDS: 242 *(int *)data = sc->sc_leds & NEXT_WSKBD_LEDS; 243 return 0; 244 case WSKBDIO_COMPLEXBELL: 245 return 0; 246 } 247 return EPASSTHROUGH; 248 } 249 250 int 251 nextkbdhard(void *arg) 252 { 253 struct nextkbd_softc *sc = arg; 254 int type, key, val; 255 256 if (!INTR_OCCURRED(NEXT_I_KYBD_MOUSE)) 257 return 0; 258 259 #define CSR_INT 0x00800000 260 #define CSR_DATA 0x00400000 261 262 #define KD_KEYMASK 0x007f 263 #define KD_DIRECTION 0x0080 /* pressed or released */ 264 #define KD_CNTL 0x0100 265 #define KD_LSHIFT 0x0200 266 #define KD_RSHIFT 0x0400 267 #define KD_LCOMM 0x0800 268 #define KD_RCOMM 0x1000 269 #define KD_LALT 0x2000 270 #define KD_RALT 0x4000 271 #define KD_VALID 0x8000 /* only set for scancode keys ? */ 272 #define KD_MODS 0x4f00 273 274 val = nextkbd_read_data(sc->id); 275 if ((val != -1) && nextkbd_decode(sc->id, val, &type, &key)) { 276 wskbd_input(sc->sc_wskbddev, type, key); 277 } 278 return 1; 279 } 280 281 int 282 nextkbd_cnattach(bus_space_tag_t bst) 283 { 284 bus_space_handle_t bsh; 285 286 if (bus_space_map(bst, NEXT_P_MON, sizeof(struct mon_regs), 0, &bsh)) 287 return ENXIO; 288 289 memset(&nextkbd_consdata, 0, sizeof(nextkbd_consdata)); 290 291 nextkbd_consdata.iot = bst; 292 nextkbd_consdata.ioh = bsh; 293 nextkbd_consdata.isconsole = 1; 294 295 wskbd_cnattach(&nextkbd_consops, &nextkbd_consdata, 296 &nextkbd_keymapdata); 297 298 return 0; 299 } 300 301 void 302 nextkbd_cngetc(void *v, u_int *type, int *data) 303 { 304 struct nextkbd_internal *t = v; 305 int val; 306 307 for (;;) { 308 if (INTR_OCCURRED(NEXT_I_KYBD_MOUSE)) { 309 val = nextkbd_read_data(t); 310 if (val != -1 && nextkbd_decode(t, val, type, data)) 311 return; 312 } 313 } 314 } 315 316 void 317 nextkbd_cnpollc(void *v, int on) 318 { 319 struct nextkbd_internal *t = v; 320 321 t->polling = on; 322 if (on) { 323 INTR_DISABLE(NEXT_I_KYBD_MOUSE); 324 } else { 325 INTR_ENABLE(NEXT_I_KYBD_MOUSE); 326 } 327 328 } 329 330 static int 331 nextkbd_read_data(struct nextkbd_internal *id) 332 { 333 unsigned char device; 334 struct mon_regs stat = { 0 }; 335 336 bus_space_read_region_4(id->iot, id->ioh, 0, &stat, 3); 337 if ((stat.mon_csr & CSR_INT) != 0 && 338 (stat.mon_csr & CSR_DATA) != 0) { 339 stat.mon_csr &= ~CSR_INT; 340 id->num_ints++; 341 bus_space_write_4(id->iot, id->ioh, 0, stat.mon_csr); 342 device = stat.mon_data >> 28; 343 if (device != 1) 344 return -1; /* XXX: mouse */ 345 return stat.mon_data & 0xffff; 346 } 347 return -1; 348 } 349 350 static int 351 nextkbd_decode(struct nextkbd_internal *id, int datain, u_int *type, 352 int *dataout) 353 { 354 355 #if 0 356 printf("datain %08x mods %08x\n", datain, id->mods); 357 #endif 358 359 if (((datain ^ id->mods) & KD_LSHIFT) != 0) { 360 id->mods ^= KD_LSHIFT; 361 *dataout = 90; 362 if (datain & KD_LSHIFT) 363 *type = WSCONS_EVENT_KEY_DOWN; 364 else 365 *type = WSCONS_EVENT_KEY_UP; 366 } else if (((datain ^ id->mods) & KD_RSHIFT) != 0) { 367 id->mods ^= KD_RSHIFT; 368 *dataout = 91; 369 if ((datain & KD_RSHIFT) != 0) 370 *type = WSCONS_EVENT_KEY_DOWN; 371 else 372 *type = WSCONS_EVENT_KEY_UP; 373 } else if (((datain ^ id->mods) & KD_LALT) != 0) { 374 id->mods ^= KD_LALT; 375 *dataout = 92; 376 if ((datain & KD_LALT) != 0) 377 *type = WSCONS_EVENT_KEY_DOWN; 378 else 379 *type = WSCONS_EVENT_KEY_UP; 380 } else if (((datain ^ id->mods) & KD_RALT) != 0) { 381 id->mods ^= KD_RALT; 382 *dataout = 93; 383 if ((datain & KD_RALT) != 0) 384 *type = WSCONS_EVENT_KEY_DOWN; 385 else 386 *type = WSCONS_EVENT_KEY_UP; 387 } else if (((datain ^ id->mods) & KD_CNTL) != 0) { 388 id->mods ^= KD_CNTL; 389 *dataout = 94; 390 if ((datain & KD_CNTL) != 0) 391 *type = WSCONS_EVENT_KEY_DOWN; 392 else 393 *type = WSCONS_EVENT_KEY_UP; 394 } else if (((datain ^ id->mods) & KD_LCOMM) != 0) { 395 id->mods ^= KD_LCOMM; 396 *dataout = 95; 397 if ((datain & KD_LCOMM) != 0) 398 *type = WSCONS_EVENT_KEY_DOWN; 399 else 400 *type = WSCONS_EVENT_KEY_UP; 401 } else if (((datain ^ id->mods) & KD_RCOMM) != 0) { 402 id->mods ^= KD_RCOMM; 403 *dataout = 96; 404 if ((datain & KD_RCOMM) != 0) 405 *type = WSCONS_EVENT_KEY_DOWN; 406 else 407 *type = WSCONS_EVENT_KEY_UP; 408 } else if ((datain & KD_KEYMASK) != 0) { 409 if ((datain & KD_DIRECTION) != 0) 410 *type = WSCONS_EVENT_KEY_UP; 411 else 412 *type = WSCONS_EVENT_KEY_DOWN; 413 414 *dataout = (datain & KD_KEYMASK); 415 } else { 416 *dataout = 0; 417 } 418 419 return 1; 420 } 421