pfckbd.c revision 1.19
1 /* $NetBSD: pfckbd.c,v 1.19 2006/02/23 00:46:31 uwe 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 1.19 2006/02/23 00:46:31 uwe 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 int pfckbd_match(struct device *, struct cfdata *, void *); 70 static void pfckbd_attach(struct device *, struct device *, void *); 71 static void (*pfckbd_callout_lookup(void))(void *); 72 static void pfckbd_callout_unknown(void *); 73 static void pfckbd_callout_hp(void *); 74 static void pfckbd_callout_hitachi(void *); 75 76 static struct pfckbd_core { 77 int pc_attached; 78 int pc_enabled; 79 struct callout pc_soft_ch; 80 struct hpckbd_ic_if pc_if; 81 struct hpckbd_if *pc_hpckbd; 82 uint16_t pc_column[8]; 83 void (*pc_callout)(void *); 84 } pfckbd_core; 85 86 /* callout function table. this function is platfrom specific. */ 87 static const struct { 88 platid_mask_t *platform; 89 void (*func)(void *); 90 } pfckbd_calloutfunc_table[] = { 91 { &platid_mask_MACH_HP , pfckbd_callout_hp }, 92 { &platid_mask_MACH_HITACHI , pfckbd_callout_hitachi } 93 }; 94 95 CFATTACH_DECL(pfckbd, sizeof(struct device), 96 pfckbd_match, pfckbd_attach, NULL, NULL); 97 98 static int pfckbd_poll(void *); 99 static void pfckbd_ifsetup(struct pfckbd_core *); 100 static int pfckbd_input_establish(void *, struct hpckbd_if *); 101 static void pfckbd_input(struct hpckbd_if *, uint16_t *, uint16_t, int); 102 103 void 104 pfckbd_cnattach() 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 console */ 116 hpckbd_cnattach(&pc->pc_if); 117 } 118 119 static int 120 pfckbd_match(struct device *parent, struct cfdata *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); 128 } 129 130 static void 131 pfckbd_attach(struct device *parent, struct device *self, void *aux) 132 { 133 struct hpckbd_attach_args haa; 134 135 printf("\n"); 136 137 /* pfckbd is singleton. no more attach */ 138 pfckbd_core.pc_attached = 1; 139 pfckbd_ifsetup(&pfckbd_core); 140 141 /* attach hpckbd */ 142 haa.haa_ic = &pfckbd_core.pc_if; /* tell the hpckbd to my interface */ 143 config_found(self, &haa, hpckbd_print); 144 145 /* install callout handler */ 146 callout_init(&pfckbd_core.pc_soft_ch); 147 callout_reset(&pfckbd_core.pc_soft_ch, 1, pfckbd_core.pc_callout, 148 &pfckbd_core); 149 } 150 151 static int 152 pfckbd_input_establish(void *ic, struct hpckbd_if *kbdif) 153 { 154 struct pfckbd_core *pc = ic; 155 156 /* save hpckbd interface */ 157 pc->pc_hpckbd = kbdif; 158 /* ok to transact hpckbd */ 159 pc->pc_enabled = 1; 160 161 return 0; 162 } 163 164 static int 165 pfckbd_poll(void *arg) 166 { 167 struct pfckbd_core *pc = arg; 168 169 if (pc->pc_enabled) 170 (*pc->pc_callout)(arg); 171 172 return 0; 173 } 174 175 static void 176 pfckbd_ifsetup(struct pfckbd_core *pc) 177 { 178 int i; 179 180 pc->pc_if.hii_ctx = pc; 181 pc->pc_if.hii_establish = pfckbd_input_establish; 182 pc->pc_if.hii_poll = pfckbd_poll; 183 for (i = 0; i < 8; i++) 184 pc->pc_column[i] = 0xdfff; 185 186 /* select PFC access method */ 187 pc->pc_callout = pfckbd_callout_lookup(); 188 } 189 190 static void 191 pfckbd_input(struct hpckbd_if *hpckbd, uint16_t *buf, uint16_t data, 192 int column) 193 { 194 int row, type, val; 195 unsigned int edge, mask; 196 197 edge = data ^ buf[column]; 198 if (edge) { 199 buf[column] = data; 200 201 for (row = 0, mask = 1; row < 16; row++, mask <<= 1) { 202 if (mask & edge) { 203 type = mask & data ? 0 : 1; 204 val = row * 8 + column; 205 DPRINTF("(%2d, %2d) %d \n", 206 row, column, type); 207 hpckbd_input(hpckbd, type, val); 208 } 209 } 210 } 211 } 212 213 /* 214 * Platform dependent routines. 215 */ 216 217 /* Look up appropriate callback handler */ 218 static void 219 (*pfckbd_callout_lookup())(void *) 220 { 221 int i, n = sizeof(pfckbd_calloutfunc_table) / 222 sizeof(pfckbd_calloutfunc_table[0]); 223 224 for (i = 0; i < n; i++) 225 if (platid_match(&platid, 226 pfckbd_calloutfunc_table[i].platform)) 227 return (pfckbd_calloutfunc_table[i].func); 228 229 return (pfckbd_callout_unknown); 230 } 231 232 /* Placeholder for unknown platform */ 233 static void 234 pfckbd_callout_unknown(void *arg) 235 { 236 237 printf("%s: unknown keyboard switch\n", __func__); 238 } 239 240 /* HP Jornada680/690, HP620LX */ 241 static void 242 pfckbd_callout_hp(void *arg) 243 { 244 #define PFCKBD_HP_PDCR_MASK 0xcc0c 245 #define PFCKBD_HP_PECR_MASK 0xf0cf 246 247 /* 248 * Disable output on all lines but the n'th line in D. 249 * Pull the n'th scan line in D low. 250 */ 251 #define PD(n) \ 252 { (uint16_t)(PFCKBD_HP_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 253 (uint16_t)(PFCKBD_HP_PECR_MASK & 0xffff), \ 254 (uint8_t)~(1 << (n)), \ 255 0xff } 256 257 /* Ditto for E */ 258 #define PE(n) \ 259 { (uint16_t)(PFCKBD_HP_PDCR_MASK & 0xffff), \ 260 (uint16_t)(PFCKBD_HP_PECR_MASK & (~(1 << (2*(n)+1)))), \ 261 0xff, \ 262 (uint8_t)~(1 << (n)) } 263 264 static const struct { 265 uint16_t dc, ec; uint8_t d, e; 266 } scan[] = { 267 PD(1), PD(5), PE(1), PE(6), PE(7), PE(3), PE(0), PD(7) 268 }; 269 270 #undef PD 271 #undef PE 272 273 struct pfckbd_core *pc = arg; 274 uint16_t dc, ec; 275 int column; 276 uint16_t data; 277 278 if (!pc->pc_enabled) 279 goto reinstall; 280 281 /* bits in D/E control regs we do not touch (XXX: can they change?) */ 282 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HP_PDCR_MASK; 283 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HP_PECR_MASK; 284 285 for (column = 0; column < 8; column++) { 286 /* disable output to all lines except the one we scan */ 287 _reg_write_2(SH7709_PDCR, dc | scan[column].dc); 288 _reg_write_2(SH7709_PECR, ec | scan[column].ec); 289 delay(5); 290 291 /* pull the scan line low */ 292 _reg_write_1(SH7709_PDDR, scan[column].d); 293 _reg_write_1(SH7709_PEDR, scan[column].e); 294 delay(50); 295 296 /* read sense */ 297 data = _reg_read_1(SH7709_PFDR) | 298 (_reg_read_1(SH7709_PCDR) << 8); 299 300 pfckbd_input(pc->pc_hpckbd, pc->pc_column, data, column); 301 } 302 303 /* scan no lines */ 304 _reg_write_1(SH7709_PDDR, 0xff); 305 _reg_write_1(SH7709_PEDR, 0xff); 306 307 /* enable all scan lines */ 308 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HP_PDCR_MASK)); 309 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HP_PECR_MASK)); 310 311 #if 0 312 /* (ignore) extra keys/events (recorder buttons, lid, cable &c) */ 313 data = _reg_read_1(SH7709_PGDR) | (_reg_read_1(SH7709_PHDR) << 8); 314 #endif 315 316 reinstall: 317 callout_schedule(&pc->pc_soft_ch, 1); 318 } 319 320 /* HITACH PERSONA (HPW-50PAD) */ 321 static void 322 pfckbd_callout_hitachi(void *arg) 323 { 324 #define PFCKBD_HITACHI_PCCR_MASK 0xfff3 325 #define PFCKBD_HITACHI_PDCR_MASK 0x000c 326 #define PFCKBD_HITACHI_PECR_MASK 0x30cf 327 328 #define PFCKBD_HITACHI_PCDR_SCN_MASK 0xfd 329 #define PFCKBD_HITACHI_PDDR_SCN_MASK 0xf7 330 #define PFCKBD_HITACHI_PEDR_SCN_MASK 0xff 331 332 #define PFCKBD_HITACHI_PCDR_SNS_MASK 0x01 333 #define PFCKBD_HITACHI_PFDR_SNS_MASK 0xfe 334 335 /* 336 * Disable output on all lines but the n'th line in C. 337 * Pull the n'th scan line in C low. 338 */ 339 #define PC(n) \ 340 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & (~(1 << (2*(n)+1)))), \ 341 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 342 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 343 (uint8_t)(PFCKBD_HITACHI_PCDR_SCN_MASK & ~(1 << (n))), \ 344 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 345 PFCKBD_HITACHI_PEDR_SCN_MASK } 346 347 /* Ditto for D */ 348 #define PD(n) \ 349 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 350 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & (~(1 << (2*(n)+1)))), \ 351 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ 352 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 353 (uint8_t)(PFCKBD_HITACHI_PDDR_SCN_MASK & ~(1 << (n))), \ 354 PFCKBD_HITACHI_PEDR_SCN_MASK } 355 356 /* Ditto for E */ 357 #define PE(n) \ 358 { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ 359 (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ 360 (uint16_t)(PFCKBD_HITACHI_PECR_MASK & (~(1 << (2*(n)+1)))), \ 361 PFCKBD_HITACHI_PCDR_SCN_MASK, \ 362 PFCKBD_HITACHI_PDDR_SCN_MASK, \ 363 (uint8_t)(PFCKBD_HITACHI_PEDR_SCN_MASK & ~(1 << (n))) } 364 365 static const struct { 366 uint16_t cc, dc, ec; uint8_t c, d, e; 367 } scan[] = { 368 PE(6), PE(3), PE(1), PE(0), PC(7), PC(6), PC(5), PC(4), 369 PC(3), PC(2), PD(1), PC(0) 370 }; 371 372 #undef PC 373 #undef PD 374 #undef PE 375 376 struct pfckbd_core *pc = arg; 377 uint16_t cc, dc, ec; 378 uint8_t data[2], cd, dd, ed; 379 int i; 380 381 if (!pc->pc_enabled) 382 goto reinstall; 383 384 /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ 385 cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; 386 dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; 387 ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; 388 389 cd = _reg_read_1(SH7709_PCDR); 390 dd = _reg_read_1(SH7709_PDDR); 391 ed = _reg_read_1(SH7709_PEDR); 392 393 for (i = 0; i < 12; i++) { 394 /* disable output to all lines except the one we scan */ 395 _reg_write_2(SH7709_PCCR, cc | scan[i].cc); 396 _reg_write_2(SH7709_PDCR, dc | scan[i].dc); 397 _reg_write_2(SH7709_PECR, ec | scan[i].ec); 398 delay(5); 399 400 /* pull the scan line low */ 401 _reg_write_1(SH7709_PCDR, scan[i].c); 402 _reg_write_1(SH7709_PDDR, scan[i].d); 403 _reg_write_1(SH7709_PEDR, scan[i].e); 404 delay(50); 405 406 /* read sense */ 407 data[i & 0x1] = 408 ((_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK) | 409 (_reg_read_1(SH7709_PFDR) & PFCKBD_HITACHI_PFDR_SNS_MASK)); 410 411 if (i & 0x1) 412 pfckbd_input(pc->pc_hpckbd, pc->pc_column, 413 (data[0] | (data[1] << 8)), (i >> 1)); 414 } 415 416 /* scan no lines */ 417 _reg_write_1(SH7709_PCDR, cd); 418 _reg_write_1(SH7709_PDDR, dd); 419 _reg_write_1(SH7709_PEDR, ed); 420 421 /* enable all scan lines */ 422 _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); 423 _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); 424 _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); 425 426 reinstall: 427 callout_schedule(&pc->pc_soft_ch, 1); 428 } 429
Indexes created Tue Sep 30 06:09:59 GMT 2025