pfckbd.c revision 1.26
1 /* $NetBSD: pfckbd.c,v 1.26 2009/03/18 10:22:30 cegger 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 * 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 * Matrix scan keyboard connected to SH7709, SH7709A PFC module. 34 * currently, HP Jornada 680/690, HITACHI PERSONA HPW-50PAD only. 35 */ 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: pfckbd.c,v 1.26 2009/03/18 10:22:30 cegger Exp $"); 38 39 #include "debug_hpcsh.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 #include <sys/callout.h> 45 46 #include <machine/bus.h> 47 #include <machine/platid.h> 48 #include <machine/platid_mask.h> 49 50 #include <dev/hpc/hpckbdvar.h> 51 52 #include <sh3/pfcreg.h> 53 54 #include <hpcsh/dev/pfckbdvar.h> 55 56 #ifdef PFCKBD_DEBUG 57 #define DPRINTF_ENABLE 58 #define DPRINTF_DEBUG pfckbd_debug 59 #endif 60 #include <machine/debug.h> 61 62 static struct pfckbd_core { 63 int pc_attached; 64 int pc_enabled; 65 struct callout pc_soft_ch; 66 struct hpckbd_ic_if pc_if; 67 struct hpckbd_if *pc_hpckbd; 68 uint16_t pc_column[8]; 69 void (*pc_callout)(void *); 70 } pfckbd_core; 71 72 static int pfckbd_match(device_t, cfdata_t, void *); 73 static void pfckbd_attach(device_t, device_t, void *); 74 75 CFATTACH_DECL_NEW(pfckbd, 0, 76 pfckbd_match, pfckbd_attach, NULL, NULL); 77 78 static void pfckbd_ifsetup(struct pfckbd_core *); 79 80 /* callbacks for hpckbd */ 81 static int pfckbd_input_establish(void *, struct hpckbd_if *); 82 static int pfckbd_poll(void *); 83 84 static void pfckbd_input(struct pfckbd_core *, int, uint16_t); 85 86 static void (*pfckbd_callout_lookup(void))(void *); 87 static void pfckbd_callout_unknown(void *); 88 static void pfckbd_callout_hp(void *); 89 static void pfckbd_callout_hitachi(void *); 90 void pfckbd_poll_hitachi_power(void); 91 92 93 /* callout function table. this function is platfrom specific. */ 94 static const struct { 95 platid_mask_t *platform; 96 void (*func)(void *); 97 } pfckbd_calloutfunc_table[] = { 98 { &platid_mask_MACH_HP , pfckbd_callout_hp }, 99 { &platid_mask_MACH_HITACHI , pfckbd_callout_hitachi } 100 }; 101 102 103 void 104 pfckbd_cnattach(void) 105 { 106 struct pfckbd_core *pc = &pfckbd_core; 107 108 if ((cpu_product != CPU_PRODUCT_7709) 109 && (cpu_product != CPU_PRODUCT_7709A)) 110 return; 111 112 /* initialize interface */ 113 pfckbd_ifsetup(pc); 114 115 /* attach descendants */ 116 hpckbd_cnattach(&pc->pc_if); 117 } 118 119 static int 120 pfckbd_match(device_t parent, cfdata_t cf, void *aux) 121 { 122 123 if ((cpu_product != CPU_PRODUCT_7709) 124 && (cpu_product != CPU_PRODUCT_7709A)) 125 return 0; 126 127 return !pfckbd_core.pc_attached; /* attach only once */ 128 } 129 130 static void 131 pfckbd_attach(device_t parent, device_t self, void *aux) 132 { 133 struct hpckbd_attach_args haa; 134 135 aprint_naive("\n"); 136 aprint_normal("\n"); 137 138 pfckbd_core.pc_attached = 1; 139 140 pfckbd_ifsetup(&pfckbd_core); 141 142 /* attach hpckbd */ 143 haa.haa_ic = &pfckbd_core.pc_if; /* tell hpckbd our interface */ 144 config_found(self, &haa, hpckbd_print); 145 146 /* install callout handler */ 147 callout_init(&pfckbd_core.pc_soft_ch, 0); 148 callout_reset(&pfckbd_core.pc_soft_ch, 1, 149 pfckbd_core.pc_callout, &pfckbd_core); 150 } 151 152 static void 153 pfckbd_ifsetup(struct pfckbd_core *pc) 154 { 155 int i; 156 157 pc->pc_if.hii_ctx = pc; 158 pc->pc_if.hii_establish = pfckbd_input_establish; 159 pc->pc_if.hii_poll = pfckbd_poll; 160 161 for (i = 0; i < 8; i++) 162 pc->pc_column[i] = 0xdfff; 163 164 /* select PFC access method */ 165 pc->pc_callout = pfckbd_callout_lookup(); 166 } 167 168 169 /* 170 * Callback for hpckbd_initif 171 */ 172 static int 173 pfckbd_input_establish(void *ic, struct hpckbd_if *kbdif) 174 { 175 struct pfckbd_core *pc = ic; 176 177 pc->pc_hpckbd = kbdif; /* save hpckbd interface */ 178 pc->pc_enabled = 1; /* ok to talk to hpckbd */ 179 180 return 0; 181 } 182 183 /* 184 * Callback for hpckbd_cngetc 185 */ 186 static int 187 pfckbd_poll(void *ic) 188 { 189 struct pfckbd_core *pc = ic; 190 191 if (pc->pc_enabled) 192 (*pc->pc_callout)(pc); 193 194 return 0; 195 } 196 197 /* 198 * Called by platform specific scan routines to report key events to hpckbd 199 */ 200 static void 201 pfckbd_input(struct pfckbd_core *pc, int column, uint16_t data) 202 { 203 int row, type, val; 204 unsigned int edge, mask; 205 206 edge = data ^ pc->pc_column[column]; 207 if (edge == 0) 208 return; /* no changes in this column */ 209 210 pc->pc_column[column] = data; 211 212 for (row = 0, mask = 1; row < 16; ++row, mask <<= 1) { 213 if (mask & edge) { 214 type = mask & data ? /* up */ 0 : /* down */ 1; 215 DPRINTF("(%2d, %2d) %d \n", row, column, type); 216 217 val = row * 8 + column; 218 hpckbd_input(pc->pc_hpckbd, type, val); 219 } 220 } 221 } 222 223 224 /* 225 * Platform dependent scan routines. 226 */ 227 228 /* Look up appropriate callback handler */ 229 static void 230 (*pfckbd_callout_lookup())(void *) 231 { 232 int i, n; 233 234 n = sizeof(pfckbd_calloutfunc_table) 235 / sizeof(pfckbd_calloutfunc_table[0]); 236 237 for (i = 0; i < n; i++) 238 if (platid_match(&platid, 239 pfckbd_calloutfunc_table[i].platform)) 240 return pfckbd_calloutfunc_table[i].func; 241 242 return pfckbd_callout_unknown; 243 } 244 245 /* Placeholder for unknown platform */ 246 static void 247 pfckbd_callout_unknown(void *arg) 248 { 249 250 printf("%s: unknown keyboard switch\n", __func__); 251 } 252 253 /* 254 * HP Jornada680/690, HP620LX 255 */ 256 static void 257 pfckbd_callout_hp(void *arg) 258 { 259 #define PFCKBD_HP_PDCR_MASK 0xcc0c 260 #define PFCKBD_HP_PECR_MASK 0xf0cf 261 262 /* 263 * Disable output on all lines but the n'th line in D. 264 * Pull the n'th scan line in D low. 265 */ 266 #define PD(n) \ 267 { (uint16_t)(PFCKBD_HP_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 268 (uint16_t)(PFCKBD_HP_PECR_MASK & 0xffff), \ 269 (uint8_t)~(1 << (n)), \ 270 0xff } 271 272 /* Ditto for E */ 273 #define PE(n) \ 274 { (uint16_t)(PFCKBD_HP_PDCR_MASK & 0xffff), \ 275 (uint16_t)(PFCKBD_HP_PECR_MASK & (~(1 << (2*(n)+1)))), \ 276 0xff, \ 277 (uint8_t)~(1 << (n)) } 278 279 static const struct { 280 uint16_t dc, ec; uint8_t d, e; 281 } scan[] = { 282 PD(1), PD(5), PE(1), PE(6), PE(7), PE(3), PE(0), PD(7) 283 }; 284 285 #undef PD 286 #undef PE 287 288 struct pfckbd_core *pc = arg; 289 uint16_t dc, ec; 290 int column; 291 uint16_t data; 292 293 if (!pc->pc_enabled) 294 goto reinstall; 295 296 /* bits in D/E control regs we do not touch (XXX: can they change?) */ 297 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HP_PDCR_MASK; 298 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HP_PECR_MASK; 299 300 for (column = 0; column < 8; column++) { 301 /* disable output to all lines except the one we scan */ 302 _reg_write_2(SH7709_PDCR, dc | scan[column].dc); 303 _reg_write_2(SH7709_PECR, ec | scan[column].ec); 304 delay(5); 305 306 /* pull the scan line low */ 307 _reg_write_1(SH7709_PDDR, scan[column].d); 308 _reg_write_1(SH7709_PEDR, scan[column].e); 309 delay(50); 310 311 /* read sense */ 312 data = _reg_read_1(SH7709_PFDR) 313 | (_reg_read_1(SH7709_PCDR) << 8); 314 315 pfckbd_input(pc, column, data); 316 } 317 318 /* scan no lines */ 319 _reg_write_1(SH7709_PDDR, 0xff); 320 _reg_write_1(SH7709_PEDR, 0xff); 321 322 /* enable all scan lines */ 323 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HP_PDCR_MASK)); 324 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HP_PECR_MASK)); 325 326 #if 0 327 /* (ignore) extra keys/events (recorder buttons, lid, cable &c) */ 328 data = _reg_read_1(SH7709_PGDR) | (_reg_read_1(SH7709_PHDR) << 8); 329 #endif 330 331 reinstall: 332 callout_schedule(&pc->pc_soft_ch, 1); 333 } 334 335 /* 336 * HITACH PERSONA (HPW-50PAD) 337 */ 338 static void 339 pfckbd_callout_hitachi(void *arg) 340 { 341 #define PFCKBD_HITACHI_PCCR_MASK 0xfff3 342 #define PFCKBD_HITACHI_PDCR_MASK 0x000c 343 #define PFCKBD_HITACHI_PECR_MASK 0x30cf 344 345 #define PFCKBD_HITACHI_PCDR_SCN_MASK 0xfd 346 #define PFCKBD_HITACHI_PDDR_SCN_MASK 0x02 347 #define PFCKBD_HITACHI_PEDR_SCN_MASK 0x4b 348 349 #define PFCKBD_HITACHI_PCDR_SNS_MASK 0x01 350 #define PFCKBD_HITACHI_PFDR_SNS_MASK 0xfe 351 352 /* 353 * Disable output on all lines but the n'th line in C. 354 * Pull the n'th scan line in C low. 355 */ 356 #define PC(n) \ 357 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & (~(1 << (2*(n)+1)))), \ 358 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 359 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 360 (uint8_t)(PFCKBD_HITACHI_PCDR_SCN_MASK & ~(1 << (n))), \ 361 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 362 PFCKBD_HITACHI_PEDR_SCN_MASK } 363 364 /* Ditto for D */ 365 #define PD(n) \ 366 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 367 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 368 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 369 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 370 (uint8_t)(PFCKBD_HITACHI_PDDR_SCN_MASK & ~(1 << (n))), \ 371 PFCKBD_HITACHI_PEDR_SCN_MASK } 372 373 /* Ditto for E */ 374 #define PE(n) \ 375 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 376 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 377 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & (~(1 << (2*(n)+1)))), \ 378 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 379 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 380 (uint8_t)(PFCKBD_HITACHI_PEDR_SCN_MASK & ~(1 << (n))) } 381 382 static const struct { 383 uint16_t cc, dc, ec; uint8_t c, d, e; 384 } scan[] = { 385 PE(6), PE(3), PE(1), PE(0), PC(7), PC(6), PC(5), PC(4), 386 PC(3), PC(2), PD(1), PC(0) 387 }; 388 389 struct pfckbd_core *pc = arg; 390 uint16_t cc, dc, ec; 391 uint8_t data[2], cd, dd, ed; 392 int i; 393 394 if (!pc->pc_enabled) 395 goto reinstall; 396 397 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 398 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 399 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 400 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 401 402 for (i = 0; i < 12; i++) { 403 /* disable output to all lines except the one we scan */ 404 _reg_write_2(SH7709_PCCR, cc | scan[i].cc); 405 _reg_write_2(SH7709_PDCR, dc | scan[i].dc); 406 _reg_write_2(SH7709_PECR, ec | scan[i].ec); 407 delay(5); 408 409 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 410 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 411 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 412 413 /* pull the scan line low */ 414 _reg_write_1(SH7709_PCDR, cd | scan[i].c); 415 _reg_write_1(SH7709_PDDR, dd | scan[i].d); 416 _reg_write_1(SH7709_PEDR, ed | scan[i].e); 417 delay(50); 418 419 /* read sense */ 420 data[i & 0x1] = 421 (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK) 422 | (_reg_read_1(SH7709_PFDR) & PFCKBD_HITACHI_PFDR_SNS_MASK); 423 424 if (i & 0x1) 425 pfckbd_input(pc, (i >> 1), (data[0] | (data[1] << 8))); 426 } 427 428 /* enable all scan lines */ 429 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 430 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 431 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 432 433 reinstall: 434 callout_schedule(&pc->pc_soft_ch, 1); 435 } 436 437 void 438 pfckbd_poll_hitachi_power(void) 439 { 440 static const struct { 441 uint16_t cc, dc, ec; uint8_t c, d, e; 442 } poll = PD(1); 443 444 #undef PC 445 #undef PD 446 #undef PE 447 448 uint16_t cc, dc, ec; 449 uint8_t cd, dd, ed; 450 451 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 452 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 453 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 454 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 455 456 /* disable output to all lines except the one we scan */ 457 _reg_write_2(SH7709_PCCR, cc | poll.cc); 458 _reg_write_2(SH7709_PDCR, dc | poll.dc); 459 _reg_write_2(SH7709_PECR, ec | poll.ec); 460 delay(5); 461 462 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 463 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 464 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 465 466 /* pull the scan line low */ 467 _reg_write_1(SH7709_PCDR, cd | poll.c); 468 _reg_write_1(SH7709_PDDR, dd | poll.d); 469 _reg_write_1(SH7709_PEDR, ed | poll.e); 470 delay(50); 471 472 /* poll POWER On */ 473 while (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK & 0x01); 474 475 /* enable all scan lines */ 476 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 477 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 478 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 479 } 480
Indexes created Tue Sep 30 06:09:59 GMT 2025