pfckbd.c revision 1.23.16.1
1 /* $NetBSD: pfckbd.c,v 1.23.16.1 2008/04/03 12:42:17 mjf Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Matrix scan keyboard connected to SH7709, SH7709A PFC module. 41 * currently, HP Jornada 680/690, HITACHI PERSONA HPW-50PAD only. 42 */ 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: pfckbd.c,v 1.23.16.1 2008/04/03 12:42:17 mjf Exp $"); 45 46 #include "debug_hpcsh.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 #include <sys/callout.h> 52 53 #include <machine/bus.h> 54 #include <machine/platid.h> 55 #include <machine/platid_mask.h> 56 57 #include <dev/hpc/hpckbdvar.h> 58 59 #include <sh3/pfcreg.h> 60 61 #include <hpcsh/dev/pfckbdvar.h> 62 63 #ifdef PFCKBD_DEBUG 64 #define DPRINTF_ENABLE 65 #define DPRINTF_DEBUG pfckbd_debug 66 #endif 67 #include <machine/debug.h> 68 69 static struct pfckbd_core { 70 int pc_attached; 71 int pc_enabled; 72 struct callout pc_soft_ch; 73 struct hpckbd_ic_if pc_if; 74 struct hpckbd_if *pc_hpckbd; 75 uint16_t pc_column[8]; 76 void (*pc_callout)(void *); 77 } pfckbd_core; 78 79 static int pfckbd_match(device_t, cfdata_t, void *); 80 static void pfckbd_attach(device_t, device_t, void *); 81 82 CFATTACH_DECL_NEW(pfckbd, 0, 83 pfckbd_match, pfckbd_attach, NULL, NULL); 84 85 static void pfckbd_ifsetup(struct pfckbd_core *); 86 87 /* callbacks for hpckbd */ 88 static int pfckbd_input_establish(void *, struct hpckbd_if *); 89 static int pfckbd_poll(void *); 90 91 static void pfckbd_input(struct pfckbd_core *, int, uint16_t); 92 93 static void (*pfckbd_callout_lookup(void))(void *); 94 static void pfckbd_callout_unknown(void *); 95 static void pfckbd_callout_hp(void *); 96 static void pfckbd_callout_hitachi(void *); 97 void pfckbd_poll_hitachi_power(void); 98 99 100 /* callout function table. this function is platfrom specific. */ 101 static const struct { 102 platid_mask_t *platform; 103 void (*func)(void *); 104 } pfckbd_calloutfunc_table[] = { 105 { &platid_mask_MACH_HP , pfckbd_callout_hp }, 106 { &platid_mask_MACH_HITACHI , pfckbd_callout_hitachi } 107 }; 108 109 110 void 111 pfckbd_cnattach() 112 { 113 struct pfckbd_core *pc = &pfckbd_core; 114 115 if ((cpu_product != CPU_PRODUCT_7709) 116 && (cpu_product != CPU_PRODUCT_7709A)) 117 return; 118 119 /* initialize interface */ 120 pfckbd_ifsetup(pc); 121 122 /* attach descendants */ 123 hpckbd_cnattach(&pc->pc_if); 124 } 125 126 static int 127 pfckbd_match(device_t parent, cfdata_t cf, void *aux) 128 { 129 130 if ((cpu_product != CPU_PRODUCT_7709) 131 && (cpu_product != CPU_PRODUCT_7709A)) 132 return 0; 133 134 return !pfckbd_core.pc_attached; /* attach only once */ 135 } 136 137 static void 138 pfckbd_attach(device_t parent, device_t self, void *aux) 139 { 140 struct hpckbd_attach_args haa; 141 142 aprint_naive("\n"); 143 aprint_normal("\n"); 144 145 pfckbd_core.pc_attached = 1; 146 147 pfckbd_ifsetup(&pfckbd_core); 148 149 /* attach hpckbd */ 150 haa.haa_ic = &pfckbd_core.pc_if; /* tell hpckbd our interface */ 151 config_found(self, &haa, hpckbd_print); 152 153 /* install callout handler */ 154 callout_init(&pfckbd_core.pc_soft_ch, 0); 155 callout_reset(&pfckbd_core.pc_soft_ch, 1, 156 pfckbd_core.pc_callout, &pfckbd_core); 157 } 158 159 static void 160 pfckbd_ifsetup(struct pfckbd_core *pc) 161 { 162 int i; 163 164 pc->pc_if.hii_ctx = pc; 165 pc->pc_if.hii_establish = pfckbd_input_establish; 166 pc->pc_if.hii_poll = pfckbd_poll; 167 168 for (i = 0; i < 8; i++) 169 pc->pc_column[i] = 0xdfff; 170 171 /* select PFC access method */ 172 pc->pc_callout = pfckbd_callout_lookup(); 173 } 174 175 176 /* 177 * Callback for hpckbd_initif 178 */ 179 static int 180 pfckbd_input_establish(void *ic, struct hpckbd_if *kbdif) 181 { 182 struct pfckbd_core *pc = ic; 183 184 pc->pc_hpckbd = kbdif; /* save hpckbd interface */ 185 pc->pc_enabled = 1; /* ok to talk to hpckbd */ 186 187 return 0; 188 } 189 190 /* 191 * Callback for hpckbd_cngetc 192 */ 193 static int 194 pfckbd_poll(void *ic) 195 { 196 struct pfckbd_core *pc = ic; 197 198 if (pc->pc_enabled) 199 (*pc->pc_callout)(pc); 200 201 return 0; 202 } 203 204 /* 205 * Called by platform specific scan routines to report key events to hpckbd 206 */ 207 static void 208 pfckbd_input(struct pfckbd_core *pc, int column, uint16_t data) 209 { 210 int row, type, val; 211 unsigned int edge, mask; 212 213 edge = data ^ pc->pc_column[column]; 214 if (edge == 0) 215 return; /* no changes in this column */ 216 217 pc->pc_column[column] = data; 218 219 for (row = 0, mask = 1; row < 16; ++row, mask <<= 1) { 220 if (mask & edge) { 221 type = mask & data ? /* up */ 0 : /* down */ 1; 222 DPRINTF("(%2d, %2d) %d \n", row, column, type); 223 224 val = row * 8 + column; 225 hpckbd_input(pc->pc_hpckbd, type, val); 226 } 227 } 228 } 229 230 231 /* 232 * Platform dependent scan routines. 233 */ 234 235 /* Look up appropriate callback handler */ 236 static void 237 (*pfckbd_callout_lookup())(void *) 238 { 239 int i, n; 240 241 n = sizeof(pfckbd_calloutfunc_table) 242 / sizeof(pfckbd_calloutfunc_table[0]); 243 244 for (i = 0; i < n; i++) 245 if (platid_match(&platid, 246 pfckbd_calloutfunc_table[i].platform)) 247 return pfckbd_calloutfunc_table[i].func; 248 249 return pfckbd_callout_unknown; 250 } 251 252 /* Placeholder for unknown platform */ 253 static void 254 pfckbd_callout_unknown(void *arg) 255 { 256 257 printf("%s: unknown keyboard switch\n", __func__); 258 } 259 260 /* 261 * HP Jornada680/690, HP620LX 262 */ 263 static void 264 pfckbd_callout_hp(void *arg) 265 { 266 #define PFCKBD_HP_PDCR_MASK 0xcc0c 267 #define PFCKBD_HP_PECR_MASK 0xf0cf 268 269 /* 270 * Disable output on all lines but the n'th line in D. 271 * Pull the n'th scan line in D low. 272 */ 273 #define PD(n) \ 274 { (uint16_t)(PFCKBD_HP_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 275 (uint16_t)(PFCKBD_HP_PECR_MASK & 0xffff), \ 276 (uint8_t)~(1 << (n)), \ 277 0xff } 278 279 /* Ditto for E */ 280 #define PE(n) \ 281 { (uint16_t)(PFCKBD_HP_PDCR_MASK & 0xffff), \ 282 (uint16_t)(PFCKBD_HP_PECR_MASK & (~(1 << (2*(n)+1)))), \ 283 0xff, \ 284 (uint8_t)~(1 << (n)) } 285 286 static const struct { 287 uint16_t dc, ec; uint8_t d, e; 288 } scan[] = { 289 PD(1), PD(5), PE(1), PE(6), PE(7), PE(3), PE(0), PD(7) 290 }; 291 292 #undef PD 293 #undef PE 294 295 struct pfckbd_core *pc = arg; 296 uint16_t dc, ec; 297 int column; 298 uint16_t data; 299 300 if (!pc->pc_enabled) 301 goto reinstall; 302 303 /* bits in D/E control regs we do not touch (XXX: can they change?) */ 304 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HP_PDCR_MASK; 305 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HP_PECR_MASK; 306 307 for (column = 0; column < 8; column++) { 308 /* disable output to all lines except the one we scan */ 309 _reg_write_2(SH7709_PDCR, dc | scan[column].dc); 310 _reg_write_2(SH7709_PECR, ec | scan[column].ec); 311 delay(5); 312 313 /* pull the scan line low */ 314 _reg_write_1(SH7709_PDDR, scan[column].d); 315 _reg_write_1(SH7709_PEDR, scan[column].e); 316 delay(50); 317 318 /* read sense */ 319 data = _reg_read_1(SH7709_PFDR) 320 | (_reg_read_1(SH7709_PCDR) << 8); 321 322 pfckbd_input(pc, column, data); 323 } 324 325 /* scan no lines */ 326 _reg_write_1(SH7709_PDDR, 0xff); 327 _reg_write_1(SH7709_PEDR, 0xff); 328 329 /* enable all scan lines */ 330 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HP_PDCR_MASK)); 331 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HP_PECR_MASK)); 332 333 #if 0 334 /* (ignore) extra keys/events (recorder buttons, lid, cable &c) */ 335 data = _reg_read_1(SH7709_PGDR) | (_reg_read_1(SH7709_PHDR) << 8); 336 #endif 337 338 reinstall: 339 callout_schedule(&pc->pc_soft_ch, 1); 340 } 341 342 /* 343 * HITACH PERSONA (HPW-50PAD) 344 */ 345 static void 346 pfckbd_callout_hitachi(void *arg) 347 { 348 #define PFCKBD_HITACHI_PCCR_MASK 0xfff3 349 #define PFCKBD_HITACHI_PDCR_MASK 0x000c 350 #define PFCKBD_HITACHI_PECR_MASK 0x30cf 351 352 #define PFCKBD_HITACHI_PCDR_SCN_MASK 0xfd 353 #define PFCKBD_HITACHI_PDDR_SCN_MASK 0x02 354 #define PFCKBD_HITACHI_PEDR_SCN_MASK 0x4b 355 356 #define PFCKBD_HITACHI_PCDR_SNS_MASK 0x01 357 #define PFCKBD_HITACHI_PFDR_SNS_MASK 0xfe 358 359 /* 360 * Disable output on all lines but the n'th line in C. 361 * Pull the n'th scan line in C low. 362 */ 363 #define PC(n) \ 364 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & (~(1 << (2*(n)+1)))), \ 365 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 366 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 367 (uint8_t)(PFCKBD_HITACHI_PCDR_SCN_MASK & ~(1 << (n))), \ 368 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 369 PFCKBD_HITACHI_PEDR_SCN_MASK } 370 371 /* Ditto for D */ 372 #define PD(n) \ 373 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 374 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 375 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 376 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 377 (uint8_t)(PFCKBD_HITACHI_PDDR_SCN_MASK & ~(1 << (n))), \ 378 PFCKBD_HITACHI_PEDR_SCN_MASK } 379 380 /* Ditto for E */ 381 #define PE(n) \ 382 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 383 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 384 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & (~(1 << (2*(n)+1)))), \ 385 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 386 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 387 (uint8_t)(PFCKBD_HITACHI_PEDR_SCN_MASK & ~(1 << (n))) } 388 389 static const struct { 390 uint16_t cc, dc, ec; uint8_t c, d, e; 391 } scan[] = { 392 PE(6), PE(3), PE(1), PE(0), PC(7), PC(6), PC(5), PC(4), 393 PC(3), PC(2), PD(1), PC(0) 394 }; 395 396 struct pfckbd_core *pc = arg; 397 uint16_t cc, dc, ec; 398 uint8_t data[2], cd, dd, ed; 399 int i; 400 401 if (!pc->pc_enabled) 402 goto reinstall; 403 404 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 405 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 406 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 407 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 408 409 for (i = 0; i < 12; i++) { 410 /* disable output to all lines except the one we scan */ 411 _reg_write_2(SH7709_PCCR, cc | scan[i].cc); 412 _reg_write_2(SH7709_PDCR, dc | scan[i].dc); 413 _reg_write_2(SH7709_PECR, ec | scan[i].ec); 414 delay(5); 415 416 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 417 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 418 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 419 420 /* pull the scan line low */ 421 _reg_write_1(SH7709_PCDR, cd | scan[i].c); 422 _reg_write_1(SH7709_PDDR, dd | scan[i].d); 423 _reg_write_1(SH7709_PEDR, ed | scan[i].e); 424 delay(50); 425 426 /* read sense */ 427 data[i & 0x1] = 428 (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK) 429 | (_reg_read_1(SH7709_PFDR) & PFCKBD_HITACHI_PFDR_SNS_MASK); 430 431 if (i & 0x1) 432 pfckbd_input(pc, (i >> 1), (data[0] | (data[1] << 8))); 433 } 434 435 /* enable all scan lines */ 436 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 437 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 438 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 439 440 reinstall: 441 callout_schedule(&pc->pc_soft_ch, 1); 442 } 443 444 void 445 pfckbd_poll_hitachi_power() 446 { 447 static const struct { 448 uint16_t cc, dc, ec; uint8_t c, d, e; 449 } poll = PD(1); 450 451 #undef PC 452 #undef PD 453 #undef PE 454 455 uint16_t cc, dc, ec; 456 uint8_t cd, dd, ed; 457 458 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 459 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 460 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 461 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 462 463 /* disable output to all lines except the one we scan */ 464 _reg_write_2(SH7709_PCCR, cc | poll.cc); 465 _reg_write_2(SH7709_PDCR, dc | poll.dc); 466 _reg_write_2(SH7709_PECR, ec | poll.ec); 467 delay(5); 468 469 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 470 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 471 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 472 473 /* pull the scan line low */ 474 _reg_write_1(SH7709_PCDR, cd | poll.c); 475 _reg_write_1(SH7709_PDDR, dd | poll.d); 476 _reg_write_1(SH7709_PEDR, ed | poll.e); 477 delay(50); 478 479 /* poll POWER On */ 480 while (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK & 0x01); 481 482 /* enable all scan lines */ 483 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 484 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 485 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 486 } 487
Indexes created Tue Sep 30 06:09:59 GMT 2025