pmu.c revision 1.3
1 /* $NetBSD: pmu.c,v 1.3 2007/02/15 01:44:54 macallan Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of The NetBSD Foundation nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 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 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: pmu.c,v 1.3 2007/02/15 01:44:54 macallan Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/device.h> 39 #include <sys/proc.h> 40 #include <sys/kthread.h> 41 42 #include <machine/bus.h> 43 #include <machine/autoconf.h> 44 #include <dev/clock_subr.h> 45 #include <dev/i2c/i2cvar.h> 46 47 #include <macppc/dev/viareg.h> 48 #include <macppc/dev/pmuvar.h> 49 #include <macppc/dev/batteryvar.h> 50 51 #include <dev/ofw/openfirm.h> 52 #include <dev/adb/adbvar.h> 53 #include "opt_pmu.h" 54 #include "nadb.h" 55 56 #ifdef PMU_DEBUG 57 #define DPRINTF printf 58 #else 59 #define DPRINTF while (0) printf 60 #endif 61 62 #define PMU_NOTREADY 0x1 /* has not been initialized yet */ 63 #define PMU_IDLE 0x2 /* the bus is currently idle */ 64 #define PMU_OUT 0x3 /* sending out a command */ 65 #define PMU_IN 0x4 /* receiving data */ 66 67 static void pmu_attach(struct device *, struct device *, void *); 68 static int pmu_match(struct device *, struct cfdata *, void *); 69 static void pmu_autopoll(void *, int); 70 71 static int pmu_intr(void *); 72 73 struct pmu_softc { 74 struct device sc_dev; 75 void *sc_ih; 76 struct todr_chip_handle sc_todr; 77 struct adb_bus_accessops sc_adbops; 78 struct i2c_controller sc_i2c; 79 struct lock sc_buslock; 80 struct pmu_ops sc_pmu_ops; 81 bus_space_tag_t sc_memt; 82 bus_space_handle_t sc_memh; 83 uint32_t sc_flags; 84 #define PMU_HAS_BACKLIGHT_CONTROL 1 85 int sc_node; 86 int sc_iic_done; 87 int sc_error; 88 int sc_autopoll; 89 int sc_pending_eject; 90 int sc_brightness, sc_brightness_wanted; 91 int sc_volume, sc_volume_wanted; 92 /* deferred processing */ 93 struct proc *sc_thread; 94 /* signalling the event thread */ 95 int sc_event; 96 /* ADB */ 97 void (*sc_adb_handler)(void *, int, uint8_t *); 98 void *sc_adb_cookie; 99 }; 100 101 CFATTACH_DECL(pmu, sizeof(struct pmu_softc), 102 pmu_match, pmu_attach, NULL, NULL); 103 104 static inline void pmu_write_reg(struct pmu_softc *, int, uint8_t); 105 static inline uint8_t pmu_read_reg(struct pmu_softc *, int); 106 static void pmu_in(struct pmu_softc *); 107 static void pmu_out(struct pmu_softc *); 108 static void pmu_ack_off(struct pmu_softc *); 109 static void pmu_ack_on(struct pmu_softc *); 110 static int pmu_intr_state(struct pmu_softc *); 111 112 static void pmu_init(struct pmu_softc *); 113 static void pmu_create_thread(void *); 114 static void pmu_thread(void *); 115 static void pmu_eject_card(struct pmu_softc *, int); 116 static void pmu_update_brightness(struct pmu_softc *); 117 118 /* 119 * send a message to Cuda. 120 */ 121 /* cookie, flags, length, data */ 122 static int pmu_send(void *, int, int, uint8_t *, uint8_t *); 123 static void pmu_adb_poll(void *); 124 static int pmu_todr_set(todr_chip_handle_t, volatile struct timeval *); 125 static int pmu_todr_get(todr_chip_handle_t, volatile struct timeval *); 126 127 static int pmu_adb_handler(void *, int, uint8_t *); 128 static void pmu_final(struct device *); 129 130 static struct pmu_softc *pmu0 = NULL; 131 132 /* ADB bus attachment stuff */ 133 static int pmu_adb_send(void *, int, int, int, uint8_t *); 134 static int pmu_adb_set_handler(void *, void (*)(void *, int, uint8_t *), void *); 135 136 /* i2c stuff */ 137 #if 0 138 static int pmu_i2c_acquire_bus(void *, int); 139 static void pmu_i2c_release_bus(void *, int); 140 static int pmu_i2c_exec(void *, i2c_op_t, i2c_addr_t, const void *, size_t, 141 void *, size_t, int); 142 #endif 143 144 static void pmu_attach_legacy_battery(struct pmu_softc *); 145 static void pmu_attach_smart_battery(struct pmu_softc *, int); 146 static int pmu_print(void *, const char *); 147 148 /* these values shows that number of data returned after 'send' cmd is sent */ 149 static signed char pm_send_cmd_type[] = { 150 -1, -1, -1, -1, -1, -1, -1, -1, 151 -1, -1, -1, -1, -1, -1, -1, -1, 152 0x01, 0x01, -1, -1, -1, -1, -1, -1, 153 0x00, 0x00, -1, -1, -1, -1, -1, 0x00, 154 -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1, 155 0x00, -1, -1, -1, -1, -1, -1, -1, 156 0x04, 0x14, -1, 0x03, -1, -1, -1, -1, 157 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1, 158 0x01, 0x01, -1, -1, -1, -1, -1, -1, 159 0x00, 0x00, -1, -1, 0x01, -1, -1, -1, 160 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01, 161 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1, 162 0x02, -1, -1, -1, -1, -1, -1, -1, 163 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1, 164 0x01, 0x01, 0x01, -1, -1, -1, -1, -1, 165 0x00, 0x00, -1, -1, -1, -1, 0x04, 0x04, 166 0x04, -1, 0x00, -1, -1, -1, -1, -1, 167 0x00, -1, -1, -1, -1, -1, -1, -1, 168 0x01, 0x02, -1, -1, -1, -1, -1, -1, 169 0x00, 0x00, -1, -1, -1, -1, -1, -1, 170 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1, 171 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1, 172 -1, -1, -1, -1, -1, -1, -1, -1, 173 -1, -1, -1, -1, -1, -1, -1, -1, 174 -1, -1, -1, -1, -1, -1, -1, -1, 175 -1, -1, -1, -1, -1, -1, -1, -1, 176 0x00, -1, -1, -1, -1, -1, -1, -1, 177 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1, 178 -1, 0x04, 0x00, -1, -1, -1, -1, -1, 179 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00, 180 -1, -1, -1, -1, -1, -1, -1, -1, 181 -1, -1, -1, -1, -1, -1, -1, -1 182 }; 183 184 /* these values shows that number of data returned after 'receive' cmd is sent */ 185 static signed char pm_receive_cmd_type[] = { 186 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 187 -1, -1, -1, -1, -1, -1, -1, -1, 188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 189 0x02, 0x02, -1, -1, -1, -1, -1, 0x00, 190 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 191 -1, -1, -1, -1, -1, -1, -1, -1, 192 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 193 0x05, 0x15, -1, 0x02, -1, -1, -1, -1, 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 195 0x02, 0x02, -1, -1, -1, -1, -1, -1, 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 197 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1, 198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 199 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1, 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 201 -1, -1, -1, -1, -1, -1, 0x01, 0x01, 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 203 0x06, -1, -1, -1, -1, -1, -1, -1, 204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 205 0x02, 0x02, -1, -1, -1, -1, -1, -1, 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 207 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1, 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 209 -1, -1, -1, -1, -1, -1, -1, -1, 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 211 -1, -1, -1, -1, -1, -1, -1, -1, 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 213 0x02, 0x02, -1, -1, 0x02, -1, -1, -1, 214 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 215 -1, -1, 0x02, -1, -1, -1, -1, 0x00, 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 217 -1, -1, -1, -1, -1, -1, -1, -1, 218 }; 219 220 static const char *has_legacy_battery[] = { 221 "AAPL,3500", 222 "AAPL,3400/2400", 223 NULL }; 224 225 static const char *has_two_smart_batteries[] = { 226 "AAPL,PowerBook1998", 227 "PowerBook1,1", 228 NULL }; 229 230 static int 231 pmu_match(struct device *parent, struct cfdata *cf, void *aux) 232 { 233 struct confargs *ca = aux; 234 235 if (ca->ca_nreg < 8) 236 return 0; 237 238 if (ca->ca_nintr < 4) 239 return 0; 240 241 if (strcmp(ca->ca_name, "via-pmu") == 0) { 242 return 10; 243 } 244 245 return 0; 246 } 247 248 static void 249 pmu_attach(struct device *parent, struct device *dev, void *aux) 250 { 251 struct confargs *ca = aux; 252 struct pmu_softc *sc = (struct pmu_softc *)dev; 253 #if notyet 254 struct i2cbus_attach_args iba; 255 #endif 256 int irq = ca->ca_intr[0]; 257 int node, extint_node, root_node; 258 uint8_t cmd[2] = {2, 0}; 259 uint8_t resp[8]; 260 char name[32]; 261 262 extint_node = getnodebyname(OF_parent(ca->ca_node), "extint-gpio1"); 263 if (extint_node) 264 OF_getprop(extint_node, "interrupts", &irq, 4); 265 266 printf(" irq %d: ", irq); 267 268 sc->sc_node = ca->ca_node; 269 sc->sc_memt = ca->ca_tag; 270 271 root_node = OF_finddevice("/"); 272 273 sc->sc_error = 0; 274 sc->sc_autopoll = 0; 275 sc->sc_pending_eject = 0; 276 sc->sc_brightness = sc->sc_brightness_wanted = 0x80; 277 sc->sc_volume = sc->sc_volume_wanted = 0x80; 278 sc->sc_flags = 0; 279 280 if (bus_space_map(sc->sc_memt, ca->ca_reg[0] + ca->ca_baseaddr, 281 ca->ca_reg[1], 0, &sc->sc_memh) != 0) { 282 283 printf("%s: unable to map registers\n", dev->dv_xname); 284 return; 285 } 286 sc->sc_ih = intr_establish(irq, IST_LEVEL, IPL_TTY, pmu_intr, sc); 287 288 pmu_init(sc); 289 290 sc->sc_pmu_ops.cookie = sc; 291 sc->sc_pmu_ops.do_command = pmu_send; 292 293 if (pmu0 == NULL) 294 pmu0 = sc; 295 296 pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, resp); 297 298 /* check what kind of PMU we're talking to */ 299 if (pmu_send(sc, PMU_GET_VERSION, 0, cmd, resp) > 1) 300 printf(" rev. %d", resp[1]); 301 printf("\n"); 302 303 config_interrupts(dev, pmu_final); 304 305 node = OF_child(ca->ca_node); 306 while (node != 0) { 307 308 if (OF_getprop(node, "name", name, 32) == 0) 309 continue; 310 if (strncmp(name, "adb", 4) == 0) { 311 312 printf("%s: initializing ADB\n", sc->sc_dev.dv_xname); 313 sc->sc_adbops.cookie = sc; 314 sc->sc_adbops.send = pmu_adb_send; 315 sc->sc_adbops.poll = pmu_adb_poll; 316 sc->sc_adbops.autopoll = pmu_autopoll; 317 sc->sc_adbops.set_handler = pmu_adb_set_handler; 318 #if NNADB > 0 319 config_found_ia(dev, "adb_bus", &sc->sc_adbops, 320 nadb_print); 321 #endif 322 goto next; 323 } 324 if (strncmp(name, "rtc", 4) == 0) { 325 326 printf("%s: initializing RTC\n", sc->sc_dev.dv_xname); 327 sc->sc_todr.todr_gettime = pmu_todr_get; 328 sc->sc_todr.todr_settime = pmu_todr_set; 329 sc->sc_todr.cookie = sc; 330 todr_attach(&sc->sc_todr); 331 goto next; 332 } 333 if (strncmp(name, "battery", 8) == 0) { 334 int nbat = 1, i, pmnode; 335 uint32_t regs[16]; 336 337 if (of_compatible(root_node, has_legacy_battery) 338 != -1) { 339 340 pmu_attach_legacy_battery(sc); 341 goto next; 342 } 343 344 if (of_compatible(root_node, has_two_smart_batteries) 345 != -1) { 346 347 pmu_attach_smart_battery(sc, 0); 348 pmu_attach_smart_battery(sc, 1); 349 goto next; 350 } 351 352 /* check how many batteries we have */ 353 pmnode = getnodebyname(ca->ca_node, "power-mgt"); 354 if (pmnode == -1) 355 goto next; 356 if (OF_getprop(pmnode, "prim-info", regs, sizeof(regs)) < 24) 357 goto next; 358 nbat = regs[6] >> 16; 359 for (i = 0; i < nbat; i++) 360 pmu_attach_smart_battery(sc, i); 361 } 362 printf("%s: %s not configured\n", sc->sc_dev.dv_xname, name); 363 next: 364 node = OF_peer(node); 365 } 366 367 if (OF_finddevice("/bandit/ohare") != -1) { 368 printf("%s: enabling ohare backlight control\n", 369 device_xname(dev)); 370 sc->sc_flags |= PMU_HAS_BACKLIGHT_CONTROL; 371 } 372 373 #if notyet 374 iba.iba_tag = &sc->sc_i2c; 375 sc->sc_i2c.ic_cookie = sc; 376 sc->sc_i2c.ic_acquire_bus = pmu_i2c_acquire_bus; 377 sc->sc_i2c.ic_release_bus = pmu_i2c_release_bus; 378 sc->sc_i2c.ic_send_start = NULL; 379 sc->sc_i2c.ic_send_stop = NULL; 380 sc->sc_i2c.ic_initiate_xfer = NULL; 381 sc->sc_i2c.ic_read_byte = NULL; 382 sc->sc_i2c.ic_write_byte = NULL; 383 sc->sc_i2c.ic_exec = pmu_i2c_exec; 384 config_found_ia(&sc->sc_dev, "i2cbus", &iba, iicbus_print); 385 #endif 386 kthread_create(pmu_create_thread, sc); 387 } 388 389 static void 390 pmu_init(struct pmu_softc *sc) 391 { 392 uint8_t pmu_imask, resp[16]; 393 394 pmu_imask = 395 PMU_INT_PCEJECT | PMU_INT_SNDBRT | PMU_INT_ADB/* | PMU_INT_TICK*/; 396 pmu_imask |= PMU_INT_BATTERY; 397 pmu_imask |= PMU_INT_ENVIRONMENT; 398 pmu_send(sc, PMU_SET_IMASK, 1, &pmu_imask, resp); 399 400 pmu_write_reg(sc, vIER, 0x90); /* enable VIA interrupts */ 401 } 402 403 static void 404 pmu_final(struct device *dev) 405 { 406 //struct pmu_softc *sc = (struct pmu_softc *)dev; 407 408 // pmu_write_reg(sc, vIER, 0x90); /* enable VIA interrupts */ 409 } 410 411 static inline void 412 pmu_write_reg(struct pmu_softc *sc, int offset, uint8_t value) 413 { 414 415 bus_space_write_1(sc->sc_memt, sc->sc_memh, offset, value); 416 } 417 418 static inline uint8_t 419 pmu_read_reg(struct pmu_softc *sc, int offset) 420 { 421 422 return bus_space_read_1(sc->sc_memt, sc->sc_memh, offset); 423 } 424 425 static inline int 426 pmu_send_byte(struct pmu_softc *sc, uint8_t data) 427 { 428 429 pmu_out(sc); 430 pmu_write_reg(sc, vSR, data); 431 pmu_ack_off(sc); 432 /* wait for intr to come up */ 433 /* XXX should add a timeout and bail if it expires */ 434 do {} while (pmu_intr_state(sc) == 0); 435 pmu_ack_on(sc); 436 do {} while (pmu_intr_state(sc)); 437 pmu_ack_on(sc); 438 DPRINTF(" %02x>", data); 439 return 0; 440 } 441 442 static inline int 443 pmu_read_byte(struct pmu_softc *sc, uint8_t *data) 444 { 445 volatile uint8_t scratch; 446 pmu_in(sc); 447 scratch = pmu_read_reg(sc, vSR); 448 pmu_ack_off(sc); 449 /* wait for intr to come up */ 450 do {} while (pmu_intr_state(sc) == 0); 451 pmu_ack_on(sc); 452 do {} while (pmu_intr_state(sc)); 453 *data = pmu_read_reg(sc, vSR); 454 DPRINTF(" <%02x", *data); 455 return 0; 456 } 457 458 static int 459 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, uint8_t *out_msg) 460 { 461 struct pmu_softc *sc = cookie; 462 int i, rcv_len = -1, s; 463 uint8_t out_len, intreg; 464 465 DPRINTF("pmu_send: "); 466 467 s = splhigh(); 468 intreg = pmu_read_reg(sc, vIER); 469 intreg &= 0x10; 470 pmu_write_reg(sc, vIER, intreg); 471 472 /* wait idle */ 473 do {} while (pmu_intr_state(sc)); 474 sc->sc_error = 0; 475 476 /* send command */ 477 pmu_send_byte(sc, cmd); 478 479 /* send length if necessary */ 480 if (pm_send_cmd_type[cmd] < 0) { 481 pmu_send_byte(sc, length); 482 } 483 484 for (i = 0; i < length; i++) { 485 pmu_send_byte(sc, in_msg[i]); 486 DPRINTF(" next "); 487 } 488 DPRINTF("done sending\n"); 489 490 /* see if there's data to read */ 491 rcv_len = pm_receive_cmd_type[cmd]; 492 if (rcv_len == 0) 493 goto done; 494 495 /* read command */ 496 if (rcv_len == 1) { 497 pmu_read_byte(sc, out_msg); 498 goto done; 499 } else 500 out_msg[0] = cmd; 501 if (rcv_len < 0) { 502 pmu_read_byte(sc, &out_len); 503 rcv_len = out_len + 1; 504 } 505 for (i = 1; i < rcv_len; i++) 506 pmu_read_byte(sc, &out_msg[i]); 507 508 done: 509 DPRINTF("\n"); 510 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90); 511 splx(s); 512 513 return rcv_len; 514 } 515 516 static void 517 pmu_adb_poll(void *cookie) 518 { 519 struct pmu_softc *sc = cookie; 520 521 pmu_intr(sc); 522 } 523 524 static void 525 pmu_in(struct pmu_softc *sc) 526 { 527 uint8_t reg; 528 529 reg = pmu_read_reg(sc, vACR); 530 reg &= ~vSR_OUT; 531 reg |= 0x0c; 532 pmu_write_reg(sc, vACR, reg); 533 } 534 535 static void 536 pmu_out(struct pmu_softc *sc) 537 { 538 uint8_t reg; 539 540 reg = pmu_read_reg(sc, vACR); 541 reg |= vSR_OUT; 542 reg |= 0x0c; 543 pmu_write_reg(sc, vACR, reg); 544 } 545 546 static void 547 pmu_ack_off(struct pmu_softc *sc) 548 { 549 uint8_t reg; 550 551 reg = pmu_read_reg(sc, vBufB); 552 reg &= ~vPB4; 553 pmu_write_reg(sc, vBufB, reg); 554 } 555 556 static void 557 pmu_ack_on(struct pmu_softc *sc) 558 { 559 uint8_t reg; 560 561 reg = pmu_read_reg(sc, vBufB); 562 reg |= vPB4; 563 pmu_write_reg(sc, vBufB, reg); 564 } 565 566 static int 567 pmu_intr_state(struct pmu_softc *sc) 568 { 569 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0); 570 } 571 572 static int 573 pmu_intr(void *arg) 574 { 575 struct pmu_softc *sc = arg; 576 unsigned int s, len, i; 577 uint8_t resp[16]; 578 579 s = splhigh(); /* can't be too careful - might be called */ 580 /* from a routine, NOT an interrupt */ 581 582 DPRINTF(":"); 583 584 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */ 585 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, resp); 586 if ((len < 1) || (resp[1] == 0)) 587 goto done; 588 #ifdef PMU_DEBUG 589 { 590 DPRINTF("intr: %02x", resp[0]); 591 for (i = 1; i < len; i++) 592 DPRINTF(" %02x", resp[i]); 593 DPRINTF("\n"); 594 } 595 #endif 596 if (resp[1] & PMU_INT_ADB) { 597 pmu_adb_handler(sc, len - 1, &resp[1]); 598 goto done; 599 } 600 if (resp[1] & PMU_INT_SNDBRT) { 601 /* deal with the brightness / volume control buttons */ 602 DPRINTF("brightness: %d volume %d\n", resp[2], resp[3]); 603 sc->sc_brightness_wanted = resp[2]; 604 sc->sc_volume_wanted = resp[3]; 605 wakeup(&sc->sc_event); 606 goto done; 607 } 608 if (resp[1] & PMU_INT_PCEJECT) { 609 /* deal with PCMCIA eject buttons */ 610 DPRINTF("card eject %d\n", resp[3]); 611 sc->sc_pending_eject |= (resp[3] & 3); 612 wakeup(&sc->sc_event); 613 goto done; 614 } 615 if (resp[1] & PMU_INT_BATTERY) { 616 /* deal with battery messages */ 617 printf("battery:"); 618 for (i = 2; i < len; i++) 619 printf(" %02x", resp[i]); 620 printf("\n"); 621 goto done; 622 } 623 if (resp[1] & PMU_INT_ENVIRONMENT) { 624 #ifdef PMU_VERBOSE 625 /* deal with environment messages */ 626 printf("environment:"); 627 for (i = 2; i < len; i++) 628 printf(" %02x", resp[i]); 629 printf("\n"); 630 #endif 631 goto done; 632 } 633 if (resp[1] & PMU_INT_TICK) { 634 /* don't bother */ 635 goto done; 636 } 637 638 /* unknown interrupt code?! */ 639 #ifdef PMU_DEBUG 640 printf("pmu intr: %02x:", resp[1]); 641 for (i = 2; i < len; i++) 642 printf(" %02x", resp[i]); 643 printf("\n"); 644 #endif 645 done: 646 splx(s); 647 return 1; 648 } 649 650 #if 0 651 static int 652 pmu_error_handler(void *cookie, int len, uint8_t *data) 653 { 654 struct pmu_softc *sc = cookie; 655 656 /* 657 * something went wrong 658 * byte 3 seems to be the failed command 659 */ 660 sc->sc_error = 1; 661 wakeup(&sc->sc_todev); 662 return 0; 663 } 664 #endif 665 #define DIFF19041970 2082844800 666 667 static int 668 pmu_todr_get(todr_chip_handle_t tch, volatile struct timeval *tvp) 669 { 670 struct pmu_softc *sc = tch->cookie; 671 uint32_t sec; 672 uint8_t resp[16]; 673 674 DPRINTF("pmu_todr_get\n"); 675 pmu_send(sc, PMU_READ_RTC, 0, NULL, resp); 676 677 memcpy(&sec, &resp[1], 4); 678 tvp->tv_sec = sec - DIFF19041970; 679 DPRINTF("tod: %ld\n", tvp->tv_sec); 680 tvp->tv_usec = 0; 681 return 0; 682 } 683 684 static int 685 pmu_todr_set(todr_chip_handle_t tch, volatile struct timeval *tvp) 686 { 687 struct pmu_softc *sc = tch->cookie; 688 uint32_t sec; 689 uint8_t resp[16]; 690 691 sec = tvp->tv_sec + DIFF19041970; 692 if (pmu_send(sc, PMU_SET_RTC, 4, (uint8_t *)&sec, resp) >= 0) 693 return 0; 694 return -1; 695 } 696 697 void 698 pmu_poweroff() 699 { 700 struct pmu_softc *sc; 701 uint8_t cmd[] = {'M', 'A', 'T', 'T'}; 702 uint8_t resp[16]; 703 704 if (pmu0 == NULL) 705 return; 706 sc = pmu0; 707 if (pmu_send(sc, PMU_POWER_OFF, 4, cmd, resp) >= 0) 708 while (1); 709 } 710 711 void 712 pmu_restart() 713 { 714 struct pmu_softc *sc; 715 uint8_t resp[16]; 716 717 if (pmu0 == NULL) 718 return; 719 sc = pmu0; 720 if (pmu_send(sc, PMU_RESET_CPU, 0, NULL, resp) >= 0) 721 while (1); 722 } 723 724 static void 725 pmu_autopoll(void *cookie, int flag) 726 { 727 struct pmu_softc *sc = cookie; 728 /* magical incantation to re-enable autopolling */ 729 uint8_t cmd[] = {0, 0x86, (flag >> 8) & 0xff, flag & 0xff}; 730 uint8_t resp[16]; 731 732 if (sc->sc_autopoll == flag) 733 return; 734 735 if (flag) { 736 pmu_send(sc, PMU_ADB_CMD, 4, cmd, resp); 737 } else { 738 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, resp); 739 } 740 sc->sc_autopoll = flag & 0xffff; 741 } 742 743 static int 744 pmu_adb_handler(void *cookie, int len, uint8_t *data) 745 { 746 struct pmu_softc *sc = cookie; 747 uint8_t resp[16]; 748 749 if (sc->sc_adb_handler != NULL) { 750 sc->sc_adb_handler(sc->sc_adb_cookie, len, data); 751 /* 752 * the PMU will turn off autopolling after each LISTEN so we 753 * need to re-enable it here whenever we receive an ACK for a 754 * LISTEN command 755 */ 756 if ((data[1] & 0x0c) == 0x08) { 757 uint8_t cmd[] = {0, 0x86, (sc->sc_autopoll >> 8) & 0xff, 758 sc->sc_autopoll & 0xff}; 759 pmu_send(sc, PMU_ADB_CMD, 4, cmd, resp); 760 } 761 return 0; 762 } 763 return -1; 764 } 765 766 static int 767 pmu_adb_send(void *cookie, int poll, int command, int len, uint8_t *data) 768 { 769 struct pmu_softc *sc = cookie; 770 int i, replen; 771 uint8_t packet[16], resp[16]; 772 773 /* construct an ADB command packet and send it */ 774 packet[0] = command; 775 packet[1] = 0; 776 packet[2] = len; 777 for (i = 0; i < len; i++) 778 packet[i + 3] = data[i]; 779 replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, resp); 780 781 return 0; 782 } 783 784 static int 785 pmu_adb_set_handler(void *cookie, void (*handler)(void *, int, uint8_t *), 786 void *hcookie) 787 { 788 struct pmu_softc *sc = cookie; 789 790 /* register a callback for incoming ADB messages */ 791 sc->sc_adb_handler = handler; 792 sc->sc_adb_cookie = hcookie; 793 return 0; 794 } 795 #if 0 796 static int 797 pmu_i2c_acquire_bus(void *cookie, int flags) 798 { 799 /* nothing yet */ 800 return 0; 801 } 802 803 static void 804 pmu_i2c_release_bus(void *cookie, int flags) 805 { 806 /* nothing here either */ 807 } 808 809 static int 810 pmu_i2c_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *_send, 811 size_t send_len, void *_recv, size_t recv_len, int flags) 812 { 813 #if 0 814 struct pmu_softc *sc = cookie; 815 const uint8_t *send = _send; 816 uint8_t *recv = _recv; 817 uint8_t command[16] = {PMU_POWERMGR, PMGR_IIC}; 818 819 DPRINTF("pmu_i2c_exec(%02x)\n", addr); 820 command[2] = addr; 821 822 memcpy(&command[3], send, min((int)send_len, 12)); 823 824 sc->sc_iic_done = 0; 825 pmu_send(sc, sc->sc_polling, send_len + 3, command); 826 827 while ((sc->sc_iic_done == 0) && (sc->sc_error == 0)) { 828 if (sc->sc_polling) { 829 pmu_poll(sc); 830 } else 831 tsleep(&sc->sc_todev, 0, "i2c", 1000); 832 } 833 834 if (sc->sc_error) { 835 sc->sc_error = 0; 836 return -1; 837 } 838 839 /* see if we're supposed to do a read */ 840 if (recv_len > 0) { 841 sc->sc_iic_done = 0; 842 command[2] |= 1; 843 command[3] = 0; 844 845 /* 846 * XXX we need to do something to limit the size of the answer 847 * - apparently the chip keeps sending until we tell it to stop 848 */ 849 pmu_send(sc, sc->sc_polling, 3, command); 850 while ((sc->sc_iic_done == 0) && (sc->sc_error == 0)) { 851 if (sc->sc_polling) { 852 pmu_poll(sc); 853 } else 854 tsleep(&sc->sc_todev, 0, "i2c", 1000); 855 } 856 857 if (sc->sc_error) { 858 printf("error trying to read\n"); 859 sc->sc_error = 0; 860 return -1; 861 } 862 } 863 864 if ((sc->sc_iic_done > 3) && (recv_len > 0)) { 865 /* we got an answer */ 866 recv[0] = sc->sc_iic_val; 867 printf("ret: %02x\n", sc->sc_iic_val); 868 return 1; 869 } 870 #endif 871 return 0; 872 } 873 #endif 874 875 static void 876 pmu_eject_card(struct pmu_softc *sc, int socket) 877 { 878 int s; 879 uint8_t buf[] = {socket | 4}; 880 uint8_t res[4]; 881 882 s = splhigh(); 883 sc->sc_pending_eject &= ~socket; 884 splx(s); 885 pmu_send(sc, PMU_EJECT_PCMCIA, 1, buf, res); 886 } 887 888 static void 889 pmu_update_brightness(struct pmu_softc *sc) 890 { 891 int val; 892 uint8_t cmd[2], resp[16]; 893 894 if (sc->sc_brightness == sc->sc_brightness_wanted) 895 return; 896 897 if ((sc->sc_flags & PMU_HAS_BACKLIGHT_CONTROL) == 0) { 898 899 printf("%s: this PMU doesn't support backlight control\n", 900 sc->sc_dev.dv_xname); 901 sc->sc_brightness = sc->sc_brightness_wanted; 902 return; 903 } 904 905 if (sc->sc_brightness_wanted == 0) { 906 907 /* turn backlight off completely */ 908 cmd[0] = PMU_POW_OFF | PMU_POW_BACKLIGHT; 909 pmu_send(sc, PMU_POWER_CTRL, 1, cmd, resp); 910 sc->sc_brightness = sc->sc_brightness_wanted; 911 912 /* don't bother with brightness */ 913 return; 914 } 915 916 /* turn backlight on if needed */ 917 if (sc->sc_brightness == 0) { 918 cmd[0] = PMU_POW_ON | PMU_POW_BACKLIGHT; 919 pmu_send(sc, PMU_POWER_CTRL, 1, cmd, resp); 920 } 921 922 DPRINTF("pmu_update_brightness: %d -> %d\n", sc->sc_brightness, 923 sc->sc_brightness_wanted); 924 925 val = 0x7f - (sc->sc_brightness_wanted >> 1); 926 if (val < 0x08) 927 val = 0x08; 928 if (val > 0x78) 929 val = 0x78; 930 cmd[0] = val; 931 pmu_send(sc, PMU_SET_BRIGHTNESS, 1, cmd, resp); 932 933 sc->sc_brightness = sc->sc_brightness_wanted; 934 } 935 936 static void 937 pmu_create_thread(void *cookie) 938 { 939 struct pmu_softc *sc = cookie; 940 941 if (kthread_create1(pmu_thread, sc, &sc->sc_thread, "%s", 942 "pmu") != 0) { 943 printf("pmu: unable to create event kthread"); 944 } 945 } 946 947 static void 948 pmu_thread(void *cookie) 949 { 950 struct pmu_softc *sc = cookie; 951 //time_t time_bat = time_second; 952 int ticks = hz, i; 953 954 while (1) { 955 tsleep(&sc->sc_event, PWAIT, "pmu_wait", ticks); 956 if (sc->sc_pending_eject != 0) { 957 DPRINTF("eject %d\n", sc->sc_pending_eject); 958 for (i = 1; i < 3; i++) { 959 if (i & sc->sc_pending_eject) 960 pmu_eject_card(sc, i); 961 } 962 } 963 #if NLWPM > 0 964 lwpm_poll(); 965 #endif 966 /* see if we need to update brightness */ 967 if (sc->sc_brightness_wanted != sc->sc_brightness) { 968 pmu_update_brightness(sc); 969 } 970 971 /* see if we need to update audio volume */ 972 if (sc->sc_volume_wanted != sc->sc_volume) { 973 //set_volume(sc->sc_volume_wanted); 974 sc->sc_volume = sc->sc_volume_wanted; 975 } 976 } 977 } 978 979 static int 980 pmu_print(void *aux, const char *what) 981 { 982 983 return 0; 984 } 985 986 static void 987 pmu_attach_legacy_battery(struct pmu_softc *sc) 988 { 989 struct battery_attach_args baa; 990 991 baa.baa_type = BATTERY_TYPE_LEGACY; 992 baa.baa_pmu_ops = &sc->sc_pmu_ops; 993 config_found_ia(&sc->sc_dev, "pmu_bus", &baa, pmu_print); 994 } 995 996 static void 997 pmu_attach_smart_battery(struct pmu_softc *sc, int num) 998 { 999 } 1000
Indexes created Wed Sep 24 05:09:52 GMT 2025