pfckbd.c revision 1.25.14.1
1 /* $NetBSD: pfckbd.c,v 1.25.14.1 2009/05/13 17:17:47 jym 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 1.25.14.1 2009/05/13 17:17:47 jym 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 if (!pmf_device_register(self, NULL, NULL)) 152 aprint_error_dev(self, "unable to establish power handler\n"); 153 } 154 155 static void 156 pfckbd_ifsetup(struct pfckbd_core *pc) 157 { 158 int i; 159 160 pc->pc_if.hii_ctx = pc; 161 pc->pc_if.hii_establish = pfckbd_input_establish; 162 pc->pc_if.hii_poll = pfckbd_poll; 163 164 for (i = 0; i < 8; i++) 165 pc->pc_column[i] = 0xdfff; 166 167 /* select PFC access method */ 168 pc->pc_callout = pfckbd_callout_lookup(); 169 } 170 171 172 /* 173 * Callback for hpckbd_initif 174 */ 175 static int 176 pfckbd_input_establish(void *ic, struct hpckbd_if *kbdif) 177 { 178 struct pfckbd_core *pc = ic; 179 180 pc->pc_hpckbd = kbdif; /* save hpckbd interface */ 181 pc->pc_enabled = 1; /* ok to talk to hpckbd */ 182 183 return 0; 184 } 185 186 /* 187 * Callback for hpckbd_cngetc 188 */ 189 static int 190 pfckbd_poll(void *ic) 191 { 192 struct pfckbd_core *pc = ic; 193 194 if (pc->pc_enabled) 195 (*pc->pc_callout)(pc); 196 197 return 0; 198 } 199 200 /* 201 * Called by platform specific scan routines to report key events to hpckbd 202 */ 203 static void 204 pfckbd_input(struct pfckbd_core *pc, int column, uint16_t data) 205 { 206 int row, type, val; 207 unsigned int edge, mask; 208 209 edge = data ^ pc->pc_column[column]; 210 if (edge == 0) 211 return; /* no changes in this column */ 212 213 pc->pc_column[column] = data; 214 215 for (row = 0, mask = 1; row < 16; ++row, mask <<= 1) { 216 if (mask & edge) { 217 type = mask & data ? /* up */ 0 : /* down */ 1; 218 DPRINTF("(%2d, %2d) %d \n", row, column, type); 219 220 val = row * 8 + column; 221 hpckbd_input(pc->pc_hpckbd, type, val); 222 } 223 } 224 } 225 226 227 /* 228 * Platform dependent scan routines. 229 */ 230 231 /* Look up appropriate callback handler */ 232 static void 233 (*pfckbd_callout_lookup())(void *) 234 { 235 int i, n; 236 237 n = sizeof(pfckbd_calloutfunc_table) 238 / sizeof(pfckbd_calloutfunc_table[0]); 239 240 for (i = 0; i < n; i++) 241 if (platid_match(&platid, 242 pfckbd_calloutfunc_table[i].platform)) 243 return pfckbd_calloutfunc_table[i].func; 244 245 return pfckbd_callout_unknown; 246 } 247 248 /* Placeholder for unknown platform */ 249 static void 250 pfckbd_callout_unknown(void *arg) 251 { 252 253 printf("%s: unknown keyboard switch\n", __func__); 254 } 255 256 /* 257 * HP Jornada680/690, HP620LX 258 */ 259 static void 260 pfckbd_callout_hp(void *arg) 261 { 262 #define PFCKBD_HP_PDCR_MASK 0xcc0c 263 #define PFCKBD_HP_PECR_MASK 0xf0cf 264 265 /* 266 * Disable output on all lines but the n'th line in D. 267 * Pull the n'th scan line in D low. 268 */ 269 #define PD(n) \ 270 { (uint16_t)(PFCKBD_HP_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 271 (uint16_t)(PFCKBD_HP_PECR_MASK & 0xffff), \ 272 (uint8_t)~(1 << (n)), \ 273 0xff } 274 275 /* Ditto for E */ 276 #define PE(n) \ 277 { (uint16_t)(PFCKBD_HP_PDCR_MASK & 0xffff), \ 278 (uint16_t)(PFCKBD_HP_PECR_MASK & (~(1 << (2*(n)+1)))), \ 279 0xff, \ 280 (uint8_t)~(1 << (n)) } 281 282 static const struct { 283 uint16_t dc, ec; uint8_t d, e; 284 } scan[] = { 285 PD(1), PD(5), PE(1), PE(6), PE(7), PE(3), PE(0), PD(7) 286 }; 287 288 #undef PD 289 #undef PE 290 291 struct pfckbd_core *pc = arg; 292 uint16_t dc, ec; 293 int column; 294 uint16_t data; 295 296 if (!pc->pc_enabled) 297 goto reinstall; 298 299 /* bits in D/E control regs we do not touch (XXX: can they change?) */ 300 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HP_PDCR_MASK; 301 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HP_PECR_MASK; 302 303 for (column = 0; column < 8; column++) { 304 /* disable output to all lines except the one we scan */ 305 _reg_write_2(SH7709_PDCR, dc | scan[column].dc); 306 _reg_write_2(SH7709_PECR, ec | scan[column].ec); 307 delay(5); 308 309 /* pull the scan line low */ 310 _reg_write_1(SH7709_PDDR, scan[column].d); 311 _reg_write_1(SH7709_PEDR, scan[column].e); 312 delay(50); 313 314 /* read sense */ 315 data = _reg_read_1(SH7709_PFDR) 316 | (_reg_read_1(SH7709_PCDR) << 8); 317 318 pfckbd_input(pc, column, data); 319 } 320 321 /* scan no lines */ 322 _reg_write_1(SH7709_PDDR, 0xff); 323 _reg_write_1(SH7709_PEDR, 0xff); 324 325 /* enable all scan lines */ 326 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HP_PDCR_MASK)); 327 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HP_PECR_MASK)); 328 329 #if 0 330 /* (ignore) extra keys/events (recorder buttons, lid, cable &c) */ 331 data = _reg_read_1(SH7709_PGDR) | (_reg_read_1(SH7709_PHDR) << 8); 332 #endif 333 334 reinstall: 335 callout_schedule(&pc->pc_soft_ch, 1); 336 } 337 338 /* 339 * HITACH PERSONA (HPW-50PAD) 340 */ 341 static void 342 pfckbd_callout_hitachi(void *arg) 343 { 344 #define PFCKBD_HITACHI_PCCR_MASK 0xfff3 345 #define PFCKBD_HITACHI_PDCR_MASK 0x000c 346 #define PFCKBD_HITACHI_PECR_MASK 0x30cf 347 348 #define PFCKBD_HITACHI_PCDR_SCN_MASK 0xfd 349 #define PFCKBD_HITACHI_PDDR_SCN_MASK 0x02 350 #define PFCKBD_HITACHI_PEDR_SCN_MASK 0x4b 351 352 #define PFCKBD_HITACHI_PCDR_SNS_MASK 0x01 353 #define PFCKBD_HITACHI_PFDR_SNS_MASK 0xfe 354 355 /* 356 * Disable output on all lines but the n'th line in C. 357 * Pull the n'th scan line in C low. 358 */ 359 #define PC(n) \ 360 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & (~(1 << (2*(n)+1)))), \ 361 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 362 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 363 (uint8_t)(PFCKBD_HITACHI_PCDR_SCN_MASK & ~(1 << (n))), \ 364 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 365 PFCKBD_HITACHI_PEDR_SCN_MASK } 366 367 /* Ditto for D */ 368 #define PD(n) \ 369 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 370 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 371 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 372 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 373 (uint8_t)(PFCKBD_HITACHI_PDDR_SCN_MASK & ~(1 << (n))), \ 374 PFCKBD_HITACHI_PEDR_SCN_MASK } 375 376 /* Ditto for E */ 377 #define PE(n) \ 378 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 379 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 380 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & (~(1 << (2*(n)+1)))), \ 381 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 382 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 383 (uint8_t)(PFCKBD_HITACHI_PEDR_SCN_MASK & ~(1 << (n))) } 384 385 static const struct { 386 uint16_t cc, dc, ec; uint8_t c, d, e; 387 } scan[] = { 388 PE(6), PE(3), PE(1), PE(0), PC(7), PC(6), PC(5), PC(4), 389 PC(3), PC(2), PD(1), PC(0) 390 }; 391 392 struct pfckbd_core *pc = arg; 393 uint16_t cc, dc, ec; 394 uint8_t data[2], cd, dd, ed; 395 int i; 396 397 if (!pc->pc_enabled) 398 goto reinstall; 399 400 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 401 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 402 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 403 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 404 405 for (i = 0; i < 12; i++) { 406 /* disable output to all lines except the one we scan */ 407 _reg_write_2(SH7709_PCCR, cc | scan[i].cc); 408 _reg_write_2(SH7709_PDCR, dc | scan[i].dc); 409 _reg_write_2(SH7709_PECR, ec | scan[i].ec); 410 delay(5); 411 412 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 413 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 414 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 415 416 /* pull the scan line low */ 417 _reg_write_1(SH7709_PCDR, cd | scan[i].c); 418 _reg_write_1(SH7709_PDDR, dd | scan[i].d); 419 _reg_write_1(SH7709_PEDR, ed | scan[i].e); 420 delay(50); 421 422 /* read sense */ 423 data[i & 0x1] = 424 (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK) 425 | (_reg_read_1(SH7709_PFDR) & PFCKBD_HITACHI_PFDR_SNS_MASK); 426 427 if (i & 0x1) 428 pfckbd_input(pc, (i >> 1), (data[0] | (data[1] << 8))); 429 } 430 431 /* enable all scan lines */ 432 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 433 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 434 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 435 436 reinstall: 437 callout_schedule(&pc->pc_soft_ch, 1); 438 } 439 440 void 441 pfckbd_poll_hitachi_power(void) 442 { 443 static const struct { 444 uint16_t cc, dc, ec; uint8_t c, d, e; 445 } poll = PD(1); 446 447 #undef PC 448 #undef PD 449 #undef PE 450 451 uint16_t cc, dc, ec; 452 uint8_t cd, dd, ed; 453 454 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 455 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 456 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 457 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 458 459 /* disable output to all lines except the one we scan */ 460 _reg_write_2(SH7709_PCCR, cc | poll.cc); 461 _reg_write_2(SH7709_PDCR, dc | poll.dc); 462 _reg_write_2(SH7709_PECR, ec | poll.ec); 463 delay(5); 464 465 cd = _reg_read_1(SH7709_PCDR) & ~PFCKBD_HITACHI_PCDR_SCN_MASK; 466 dd = _reg_read_1(SH7709_PDDR) & ~PFCKBD_HITACHI_PDDR_SCN_MASK; 467 ed = _reg_read_1(SH7709_PEDR) & ~PFCKBD_HITACHI_PEDR_SCN_MASK; 468 469 /* pull the scan line low */ 470 _reg_write_1(SH7709_PCDR, cd | poll.c); 471 _reg_write_1(SH7709_PDDR, dd | poll.d); 472 _reg_write_1(SH7709_PEDR, ed | poll.e); 473 delay(50); 474 475 /* poll POWER On */ 476 while (_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK & 0x01); 477 478 /* enable all scan lines */ 479 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 480 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 481 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 482 } 483
Indexes created Tue Sep 30 06:09:59 GMT 2025