pmu.c revision 1.36
1 /* $NetBSD: pmu.c,v 1.36 2021/03/05 07:15:53 rin 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: pmu.c,v 1.36 2021/03/05 07:15:53 rin Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/device.h> 36 #include <sys/proc.h> 37 #include <sys/kthread.h> 38 #include <sys/atomic.h> 39 #include <sys/mutex.h> 40 41 #include <sys/bus.h> 42 #include <machine/pio.h> 43 #include <machine/autoconf.h> 44 #include <dev/clock_subr.h> 45 #include <dev/i2c/i2cvar.h> 46 47 #include <dev/sysmon/sysmonvar.h> 48 49 #include <macppc/dev/viareg.h> 50 #include <macppc/dev/pmuvar.h> 51 #include <macppc/dev/batteryvar.h> 52 53 #include <dev/ofw/openfirm.h> 54 #include <dev/adb/adbvar.h> 55 #include "opt_pmu.h" 56 #include "nadb.h" 57 58 #ifdef PMU_DEBUG 59 #define DPRINTF printf 60 #else 61 #define DPRINTF while (0) printf 62 #endif 63 64 #define PMU_NOTREADY 0x1 /* has not been initialized yet */ 65 #define PMU_IDLE 0x2 /* the bus is currently idle */ 66 #define PMU_OUT 0x3 /* sending out a command */ 67 #define PMU_IN 0x4 /* receiving data */ 68 69 static void pmu_attach(device_t, device_t, void *); 70 static int pmu_match(device_t, cfdata_t, void *); 71 static void pmu_autopoll(void *, int); 72 73 static int pmu_intr(void *); 74 75 76 /* bits for sc_pending, as signals to the event thread */ 77 #define PMU_EV_CARD0 1 78 #define PMU_EV_CARD1 2 79 #define PMU_EV_BUTTON 4 80 #define PMU_EV_LID 8 81 82 struct pmu_softc { 83 device_t sc_dev; 84 void *sc_ih; 85 struct todr_chip_handle sc_todr; 86 struct adb_bus_accessops sc_adbops; 87 struct i2c_controller sc_i2c; 88 struct pmu_ops sc_pmu_ops; 89 struct sysmon_pswitch sc_lidswitch; 90 struct sysmon_pswitch sc_powerbutton; 91 bus_space_tag_t sc_memt; 92 bus_space_handle_t sc_memh; 93 uint32_t sc_flags; 94 #define PMU_HAS_BACKLIGHT_CONTROL 1 95 int sc_node; 96 int sc_error; 97 int sc_autopoll; 98 int sc_brightness, sc_brightness_wanted; 99 int sc_volume, sc_volume_wanted; 100 int sc_lid_closed; 101 int sc_button; 102 uint8_t sc_env_old; 103 uint8_t sc_env_mask; 104 /* deferred processing */ 105 lwp_t *sc_thread; 106 int sc_pending; 107 /* signalling the event thread */ 108 int sc_event; 109 /* ADB */ 110 void (*sc_adb_handler)(void *, int, uint8_t *); 111 void *sc_adb_cookie; 112 void (*sc_callback)(void *); 113 void *sc_cb_cookie; 114 }; 115 116 CFATTACH_DECL_NEW(pmu, sizeof(struct pmu_softc), 117 pmu_match, pmu_attach, NULL, NULL); 118 119 static inline void pmu_write_reg(struct pmu_softc *, int, uint8_t); 120 static inline uint8_t pmu_read_reg(struct pmu_softc *, int); 121 static void pmu_in(struct pmu_softc *); 122 static void pmu_out(struct pmu_softc *); 123 static void pmu_ack_off(struct pmu_softc *); 124 static void pmu_ack_on(struct pmu_softc *); 125 static int pmu_intr_state(struct pmu_softc *); 126 127 static void pmu_init(struct pmu_softc *); 128 static void pmu_thread(void *); 129 static void pmu_eject_card(struct pmu_softc *, int); 130 static void pmu_update_brightness(struct pmu_softc *); 131 static void pmu_register_callback(void *, void (*)(void *), void *); 132 /* 133 * send a message to the PMU. 134 */ 135 static int pmu_send(void *, int, int, uint8_t *, int, uint8_t *); 136 static void pmu_adb_poll(void *); 137 static int pmu_todr_set(todr_chip_handle_t, struct timeval *); 138 static int pmu_todr_get(todr_chip_handle_t, struct timeval *); 139 140 static int pmu_adb_handler(void *, int, uint8_t *); 141 142 static struct pmu_softc *pmu0 = NULL; 143 144 /* ADB bus attachment stuff */ 145 static int pmu_adb_send(void *, int, int, int, uint8_t *); 146 static int pmu_adb_set_handler(void *, void (*)(void *, int, uint8_t *), void *); 147 148 /* i2c stuff */ 149 static int pmu_i2c_exec(void *, i2c_op_t, i2c_addr_t, const void *, size_t, 150 void *, size_t, int); 151 152 static void pmu_attach_legacy_battery(struct pmu_softc *); 153 static void pmu_attach_smart_battery(struct pmu_softc *, int); 154 static int pmu_print(void *, const char *); 155 156 /* these values shows that number of data returned after 'send' cmd is sent */ 157 static signed char pm_send_cmd_type[] = { 158 -1, -1, -1, -1, -1, -1, -1, -1, 159 -1, -1, -1, -1, -1, -1, -1, -1, 160 0x01, 0x01, -1, -1, -1, -1, -1, -1, 161 0x00, 0x00, -1, -1, -1, -1, -1, 0x00, 162 -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1, 163 0x00, -1, -1, -1, -1, -1, -1, -1, 164 0x04, 0x14, -1, 0x03, -1, -1, -1, -1, 165 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1, 166 0x01, 0x01, -1, -1, -1, -1, -1, -1, 167 0x00, 0x00, -1, -1, 0x01, -1, -1, -1, 168 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01, 169 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1, 170 0x02, -1, -1, -1, -1, -1, -1, -1, 171 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1, 172 0x01, 0x01, 0x01, -1, -1, -1, -1, -1, 173 0x00, 0x00, -1, -1, -1, -1, 0x04, 0x04, 174 0x04, -1, 0x00, -1, -1, -1, -1, -1, 175 0x00, -1, -1, -1, -1, -1, -1, -1, 176 0x01, 0x02, -1, -1, -1, -1, -1, -1, 177 0x00, 0x00, -1, -1, -1, -1, -1, -1, 178 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1, 179 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1, 180 -1, -1, -1, -1, -1, -1, -1, -1, 181 -1, -1, -1, -1, -1, -1, -1, -1, 182 -1, -1, -1, -1, -1, -1, -1, -1, 183 -1, -1, -1, -1, -1, -1, -1, -1, 184 0x00, -1, -1, -1, -1, -1, -1, -1, 185 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1, 186 -1, 0x04, 0x00, -1, -1, -1, -1, -1, 187 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00, 188 -1, -1, -1, -1, -1, -1, -1, -1, 189 -1, -1, -1, -1, -1, -1, -1, -1 190 }; 191 192 /* these values shows that number of data returned after 'receive' cmd is sent */ 193 static signed char pm_receive_cmd_type[] = { 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 195 -1, -1, -1, -1, -1, -1, -1, -1, 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 197 0x02, 0x02, -1, -1, -1, -1, -1, 0x00, 198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 199 -1, -1, -1, -1, -1, -1, -1, -1, 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 201 0x05, 0x15, -1, 0x02, -1, -1, -1, -1, 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 203 0x02, 0x02, -1, -1, -1, -1, -1, -1, 204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 205 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1, 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 207 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1, 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 209 -1, -1, -1, -1, -1, -1, 0x01, 0x01, 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 211 0x06, -1, -1, -1, -1, -1, -1, -1, 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 213 0x02, 0x02, -1, -1, -1, -1, -1, -1, 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 215 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1, 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 217 -1, -1, -1, -1, -1, -1, -1, -1, 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 219 -1, -1, -1, -1, -1, -1, -1, -1, 220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 221 0x02, 0x02, -1, -1, 0x02, -1, -1, -1, 222 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 223 -1, -1, 0x02, -1, -1, -1, -1, 0x00, 224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 225 -1, -1, -1, -1, -1, -1, -1, -1, 226 }; 227 228 static const char *has_legacy_battery[] = { 229 "AAPL,3500", 230 "AAPL,3400/2400", 231 NULL }; 232 233 static const char *has_two_smart_batteries[] = { 234 "AAPL,PowerBook1998", 235 "PowerBook1,1", 236 NULL }; 237 238 static int 239 pmu_match(device_t parent, cfdata_t cf, void *aux) 240 { 241 struct confargs *ca = aux; 242 243 if (ca->ca_nreg < 8) 244 return 0; 245 246 if (ca->ca_nintr < 4) 247 return 0; 248 249 if (strcmp(ca->ca_name, "via-pmu") == 0) { 250 return 10; 251 } 252 253 return 0; 254 } 255 256 static void 257 pmu_attach(device_t parent, device_t self, void *aux) 258 { 259 struct confargs *ca = aux; 260 struct pmu_softc *sc = device_private(self); 261 struct i2cbus_attach_args iba; 262 uint32_t regs[16]; 263 int irq = ca->ca_intr[0]; 264 int node, extint_node, root_node; 265 int nbat = 1, i, pmnode; 266 int type = IST_EDGE; 267 uint8_t cmd[2] = {2, 0}; 268 uint8_t resp[16]; 269 char name[256], model[32]; 270 prop_dictionary_t dict = device_properties(self); 271 272 extint_node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1"); 273 if (extint_node) { 274 275 OF_getprop(extint_node, "interrupts", &irq, 4); 276 type = IST_LEVEL; 277 } 278 279 aprint_normal(" irq %d: ", irq); 280 281 sc->sc_dev = self; 282 sc->sc_node = ca->ca_node; 283 sc->sc_memt = ca->ca_tag; 284 285 root_node = OF_finddevice("/"); 286 287 sc->sc_error = 0; 288 sc->sc_autopoll = 0; 289 sc->sc_pending = 0; 290 sc->sc_env_old = 0; 291 sc->sc_brightness = sc->sc_brightness_wanted = 0x80; 292 sc->sc_volume = sc->sc_volume_wanted = 0x80; 293 sc->sc_flags = 0; 294 sc->sc_callback = NULL; 295 sc->sc_lid_closed = 0; 296 sc->sc_button = 0; 297 sc->sc_env_mask = 0xff; 298 299 /* 300 * core99 PowerMacs like to send environment messages with the lid 301 * switch bit set - since that doesn't make any sense here and it 302 * probably means something else anyway we mask it out 303 */ 304 305 if (OF_getprop(root_node, "model", model, 32) != 0) { 306 if (strncmp(model, "PowerMac", 8) == 0) { 307 sc->sc_env_mask = PMU_ENV_POWER_BUTTON; 308 } 309 } 310 311 if (bus_space_map(sc->sc_memt, ca->ca_reg[0] + ca->ca_baseaddr, 312 ca->ca_reg[1], 0, &sc->sc_memh) != 0) { 313 aprint_error_dev(self, "unable to map registers\n"); 314 return; 315 } 316 sc->sc_ih = intr_establish_xname(irq, type, IPL_TTY, pmu_intr, sc, 317 device_xname(self)); 318 319 pmu_init(sc); 320 321 sc->sc_pmu_ops.cookie = sc; 322 sc->sc_pmu_ops.do_command = pmu_send; 323 sc->sc_pmu_ops.register_callback = pmu_register_callback; 324 325 if (pmu0 == NULL) 326 pmu0 = sc; 327 328 pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, 16, resp); 329 330 /* check what kind of PMU we're talking to */ 331 if (pmu_send(sc, PMU_GET_VERSION, 0, cmd, 16, resp) > 1) 332 aprint_normal(" rev. %d", resp[1]); 333 aprint_normal("\n"); 334 335 node = OF_child(sc->sc_node); 336 337 while (node != 0) { 338 339 if (OF_getprop(node, "name", name, 256) <= 0) 340 goto next; 341 342 if (strncmp(name, "pmu-i2c", 8) == 0) { 343 int devs; 344 uint32_t addr; 345 char compat[256]; 346 prop_array_t cfg; 347 prop_dictionary_t dev; 348 prop_data_t data; 349 350 aprint_normal_dev(self, "initializing IIC bus\n"); 351 352 cfg = prop_array_create(); 353 prop_dictionary_set(dict, "i2c-child-devices", cfg); 354 prop_object_release(cfg); 355 356 /* look for i2c devices */ 357 devs = OF_child(node); 358 while (devs != 0) { 359 if (OF_getprop(devs, "name", name, 256) <= 0) 360 goto skip; 361 if (OF_getprop(devs, "compatible", 362 compat, 256) <= 0) 363 goto skip; 364 if (OF_getprop(devs, "reg", &addr, 4) <= 0) 365 goto skip; 366 addr = (addr & 0xff) >> 1; 367 DPRINTF("-> %s@%x\n", name, addr); 368 dev = prop_dictionary_create(); 369 prop_dictionary_set_string(dev, "name", name); 370 data = prop_data_create_copy(compat, strlen(compat)+1); 371 prop_dictionary_set(dev, "compatible", data); 372 prop_object_release(data); 373 prop_dictionary_set_uint32(dev, "addr", addr); 374 prop_dictionary_set_uint64(dev, "cookie", devs); 375 prop_array_add(cfg, dev); 376 prop_object_release(dev); 377 skip: 378 devs = OF_peer(devs); 379 } 380 memset(&iba, 0, sizeof(iba)); 381 iba.iba_tag = &sc->sc_i2c; 382 iic_tag_init(&sc->sc_i2c); 383 sc->sc_i2c.ic_cookie = sc; 384 sc->sc_i2c.ic_exec = pmu_i2c_exec; 385 config_found_ia(sc->sc_dev, "i2cbus", &iba, 386 iicbus_print); 387 goto next; 388 } 389 if (strncmp(name, "adb", 4) == 0) { 390 aprint_normal_dev(self, "initializing ADB\n"); 391 sc->sc_adbops.cookie = sc; 392 sc->sc_adbops.send = pmu_adb_send; 393 sc->sc_adbops.poll = pmu_adb_poll; 394 sc->sc_adbops.autopoll = pmu_autopoll; 395 sc->sc_adbops.set_handler = pmu_adb_set_handler; 396 #if NNADB > 0 397 config_found_ia(self, "adb_bus", &sc->sc_adbops, 398 nadb_print); 399 #endif 400 goto next; 401 } 402 if (strncmp(name, "rtc", 4) == 0) { 403 404 aprint_normal_dev(self, "initializing RTC\n"); 405 sc->sc_todr.todr_gettime = pmu_todr_get; 406 sc->sc_todr.todr_settime = pmu_todr_set; 407 sc->sc_todr.cookie = sc; 408 todr_attach(&sc->sc_todr); 409 goto next; 410 } 411 if (strncmp(name, "battery", 8) == 0) 412 goto next; 413 414 aprint_normal_dev(self, "%s not configured\n", name); 415 next: 416 node = OF_peer(node); 417 } 418 419 if (OF_finddevice("/bandit/ohare") != -1) { 420 aprint_normal_dev(self, "enabling ohare backlight control\n"); 421 sc->sc_flags |= PMU_HAS_BACKLIGHT_CONTROL; 422 cmd[0] = 0; 423 cmd[1] = 0; 424 memset(resp, 0, 6); 425 if (pmu_send(sc, PMU_READ_BRIGHTNESS, 1, cmd, 16, resp) > 1) { 426 sc->sc_brightness_wanted = resp[1]; 427 pmu_update_brightness(sc); 428 } 429 } 430 431 /* attach batteries */ 432 if (of_compatible(root_node, has_legacy_battery)) { 433 434 pmu_attach_legacy_battery(sc); 435 } else if (of_compatible(root_node, has_two_smart_batteries)) { 436 437 pmu_attach_smart_battery(sc, 0); 438 pmu_attach_smart_battery(sc, 1); 439 } else { 440 441 /* check how many batteries we have */ 442 pmnode = of_getnode_byname(ca->ca_node, "power-mgt"); 443 if (pmnode == -1) 444 goto bat_done; 445 if (OF_getprop(pmnode, "prim-info", regs, sizeof(regs)) < 24) 446 goto bat_done; 447 nbat = regs[6] >> 16; 448 for (i = 0; i < nbat; i++) 449 pmu_attach_smart_battery(sc, i); 450 } 451 bat_done: 452 453 if (kthread_create(PRI_NONE, 0, NULL, pmu_thread, sc, &sc->sc_thread, 454 "%s", "pmu") != 0) { 455 aprint_error_dev(self, "unable to create event kthread\n"); 456 } 457 458 sc->sc_lidswitch.smpsw_name = "Lid switch"; 459 sc->sc_lidswitch.smpsw_type = PSWITCH_TYPE_LID; 460 if (sysmon_pswitch_register(&sc->sc_lidswitch) != 0) 461 aprint_error_dev(self, 462 "unable to register lid switch with sysmon\n"); 463 464 sc->sc_powerbutton.smpsw_name = "Power button"; 465 sc->sc_powerbutton.smpsw_type = PSWITCH_TYPE_POWER; 466 if (sysmon_pswitch_register(&sc->sc_powerbutton) != 0) 467 aprint_error_dev(self, 468 "unable to register power button with sysmon\n"); 469 } 470 471 static void 472 pmu_register_callback(void *pmu_cookie, void (*cb)(void *), void *cookie) 473 { 474 struct pmu_softc *sc = pmu_cookie; 475 476 sc->sc_callback = cb; 477 sc->sc_cb_cookie = cookie; 478 } 479 480 static void 481 pmu_init(struct pmu_softc *sc) 482 { 483 uint8_t pmu_imask, resp[16]; 484 485 pmu_imask = 486 PMU_INT_PCEJECT | PMU_INT_SNDBRT | PMU_INT_ADB/* | PMU_INT_TICK*/; 487 pmu_imask |= PMU_INT_BATTERY; 488 pmu_imask |= PMU_INT_ENVIRONMENT; 489 pmu_send(sc, PMU_SET_IMASK, 1, &pmu_imask, 16, resp); 490 491 pmu_write_reg(sc, vIER, 0x90); /* enable VIA interrupts */ 492 } 493 494 static inline void 495 pmu_write_reg(struct pmu_softc *sc, int offset, uint8_t value) 496 { 497 498 bus_space_write_1(sc->sc_memt, sc->sc_memh, offset, value); 499 } 500 501 static inline uint8_t 502 pmu_read_reg(struct pmu_softc *sc, int offset) 503 { 504 505 return bus_space_read_1(sc->sc_memt, sc->sc_memh, offset); 506 } 507 508 static inline int 509 pmu_send_byte(struct pmu_softc *sc, uint8_t data) 510 { 511 512 pmu_out(sc); 513 pmu_write_reg(sc, vSR, data); 514 pmu_ack_off(sc); 515 /* wait for intr to come up */ 516 /* XXX should add a timeout and bail if it expires */ 517 do {} while (pmu_intr_state(sc) == 0); 518 pmu_ack_on(sc); 519 do {} while (pmu_intr_state(sc)); 520 pmu_ack_on(sc); 521 DPRINTF(" %02x>", data); 522 return 0; 523 } 524 525 static inline int 526 pmu_read_byte(struct pmu_softc *sc, uint8_t *data) 527 { 528 pmu_in(sc); 529 (void)pmu_read_reg(sc, vSR); 530 pmu_ack_off(sc); 531 /* wait for intr to come up */ 532 do {} while (pmu_intr_state(sc) == 0); 533 pmu_ack_on(sc); 534 do {} while (pmu_intr_state(sc)); 535 *data = pmu_read_reg(sc, vSR); 536 DPRINTF(" <%02x", *data); 537 return 0; 538 } 539 540 static int 541 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen, 542 uint8_t *out_msg) 543 { 544 struct pmu_softc *sc = cookie; 545 int i, rcv_len = -1, s; 546 uint8_t out_len, intreg; 547 548 DPRINTF("pmu_send: "); 549 550 s = splhigh(); 551 intreg = pmu_read_reg(sc, vIER); 552 intreg &= 0x10; 553 pmu_write_reg(sc, vIER, intreg); 554 555 /* wait idle */ 556 do {} while (pmu_intr_state(sc)); 557 sc->sc_error = 0; 558 559 /* send command */ 560 pmu_send_byte(sc, cmd); 561 562 /* send length if necessary */ 563 if (pm_send_cmd_type[cmd] < 0) { 564 pmu_send_byte(sc, length); 565 } 566 567 for (i = 0; i < length; i++) { 568 pmu_send_byte(sc, in_msg[i]); 569 DPRINTF(" next "); 570 } 571 DPRINTF("done sending\n"); 572 573 /* see if there's data to read */ 574 rcv_len = pm_receive_cmd_type[cmd]; 575 if (rcv_len == 0) 576 goto done; 577 578 /* read command */ 579 if (rcv_len == 1) { 580 pmu_read_byte(sc, out_msg); 581 goto done; 582 } else 583 out_msg[0] = cmd; 584 if (rcv_len < 0) { 585 pmu_read_byte(sc, &out_len); 586 rcv_len = out_len + 1; 587 } 588 for (i = 1; i < uimin(rcv_len, rlen); i++) 589 pmu_read_byte(sc, &out_msg[i]); 590 591 done: 592 DPRINTF("\n"); 593 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90); 594 splx(s); 595 596 return rcv_len; 597 } 598 599 static void 600 pmu_adb_poll(void *cookie) 601 { 602 struct pmu_softc *sc = cookie; 603 int s; 604 605 s = spltty(); 606 pmu_intr(sc); 607 splx(s); 608 } 609 610 static void 611 pmu_in(struct pmu_softc *sc) 612 { 613 uint8_t reg; 614 615 reg = pmu_read_reg(sc, vACR); 616 reg &= ~vSR_OUT; 617 reg |= 0x0c; 618 pmu_write_reg(sc, vACR, reg); 619 } 620 621 static void 622 pmu_out(struct pmu_softc *sc) 623 { 624 uint8_t reg; 625 626 reg = pmu_read_reg(sc, vACR); 627 reg |= vSR_OUT; 628 reg |= 0x0c; 629 pmu_write_reg(sc, vACR, reg); 630 } 631 632 static void 633 pmu_ack_off(struct pmu_softc *sc) 634 { 635 uint8_t reg; 636 637 reg = pmu_read_reg(sc, vBufB); 638 reg &= ~vPB4; 639 pmu_write_reg(sc, vBufB, reg); 640 } 641 642 static void 643 pmu_ack_on(struct pmu_softc *sc) 644 { 645 uint8_t reg; 646 647 reg = pmu_read_reg(sc, vBufB); 648 reg |= vPB4; 649 pmu_write_reg(sc, vBufB, reg); 650 } 651 652 static int 653 pmu_intr_state(struct pmu_softc *sc) 654 { 655 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0); 656 } 657 658 static int 659 pmu_intr(void *arg) 660 { 661 struct pmu_softc *sc = arg; 662 unsigned int len, i; 663 uint8_t resp[16]; 664 665 DPRINTF(":"); 666 667 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */ 668 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp); 669 if ((len < 1) || (resp[1] == 0)) 670 goto done; 671 #ifdef PMU_DEBUG 672 { 673 DPRINTF("intr: %02x", resp[0]); 674 for (i = 1; i < len; i++) 675 DPRINTF(" %02x", resp[i]); 676 DPRINTF("\n"); 677 } 678 #endif 679 if (resp[1] & PMU_INT_ADB) { 680 pmu_adb_handler(sc, len - 1, &resp[1]); 681 goto done; 682 } 683 if (resp[1] & PMU_INT_SNDBRT) { 684 /* deal with the brightness / volume control buttons */ 685 DPRINTF("brightness: %d volume %d\n", resp[2], resp[3]); 686 sc->sc_brightness_wanted = resp[2]; 687 sc->sc_volume_wanted = resp[3]; 688 wakeup(&sc->sc_event); 689 goto done; 690 } 691 if (resp[1] & PMU_INT_PCEJECT) { 692 /* deal with PCMCIA eject buttons */ 693 DPRINTF("card eject %d\n", resp[3]); 694 atomic_or_32(&sc->sc_pending, (resp[3] & 3)); 695 wakeup(&sc->sc_event); 696 goto done; 697 } 698 if (resp[1] & PMU_INT_BATTERY) { 699 /* deal with battery messages */ 700 printf("battery:"); 701 for (i = 2; i < len; i++) 702 printf(" %02x", resp[i]); 703 printf("\n"); 704 goto done; 705 } 706 if (resp[1] & PMU_INT_ENVIRONMENT) { 707 uint8_t diff; 708 #ifdef PMU_VERBOSE 709 /* deal with environment messages */ 710 printf("environment:"); 711 for (i = 2; i < len; i++) 712 printf(" %02x", resp[i]); 713 printf("\n"); 714 #endif 715 diff = (resp[2] ^ sc->sc_env_old ) & sc->sc_env_mask; 716 if (diff == 0) goto done; 717 sc->sc_env_old = resp[2]; 718 if (diff & PMU_ENV_LID_CLOSED) { 719 sc->sc_lid_closed = (resp[2] & PMU_ENV_LID_CLOSED) != 0; 720 atomic_or_32(&sc->sc_pending, PMU_EV_LID); 721 wakeup(&sc->sc_event); 722 } 723 if (diff & PMU_ENV_POWER_BUTTON) { 724 sc->sc_button = (resp[2] & PMU_ENV_POWER_BUTTON) != 0; 725 atomic_or_32(&sc->sc_pending, PMU_EV_BUTTON); 726 wakeup(&sc->sc_event); 727 } 728 goto done; 729 } 730 if (resp[1] & PMU_INT_TICK) { 731 /* don't bother */ 732 goto done; 733 } 734 735 /* unknown interrupt code?! */ 736 #ifdef PMU_DEBUG 737 printf("pmu intr: %02x:", resp[1]); 738 for (i = 2; i < len; i++) 739 printf(" %02x", resp[i]); 740 printf("\n"); 741 #endif 742 done: 743 return 1; 744 } 745 746 #if 0 747 static int 748 pmu_error_handler(void *cookie, int len, uint8_t *data) 749 { 750 struct pmu_softc *sc = cookie; 751 752 /* 753 * something went wrong 754 * byte 3 seems to be the failed command 755 */ 756 sc->sc_error = 1; 757 wakeup(&sc->sc_todev); 758 return 0; 759 } 760 #endif 761 #define DIFF19041970 2082844800 762 763 static int 764 pmu_todr_get(todr_chip_handle_t tch, struct timeval *tvp) 765 { 766 struct pmu_softc *sc = tch->cookie; 767 uint32_t sec; 768 int count = 10; 769 int ok = FALSE; 770 uint8_t resp[16]; 771 772 DPRINTF("pmu_todr_get\n"); 773 while ((count > 0) && (!ok)) { 774 pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp); 775 776 memcpy(&sec, &resp[1], 4); 777 tvp->tv_sec = sec - DIFF19041970; 778 ok = (sec > DIFF19041970) && (sec < 0xf0000000); 779 if (!ok) aprint_error_dev(sc->sc_dev, 780 "got garbage from rtc (%08x)\n", sec); 781 count--; 782 } 783 if (count == 0) { 784 aprint_error_dev(sc->sc_dev, 785 "unable to get a sane time value\n"); 786 tvp->tv_sec = 0; 787 } 788 DPRINTF("tod: %" PRIo64 "\n", tvp->tv_sec); 789 tvp->tv_usec = 0; 790 return 0; 791 } 792 793 static int 794 pmu_todr_set(todr_chip_handle_t tch, struct timeval *tvp) 795 { 796 struct pmu_softc *sc = tch->cookie; 797 uint32_t sec; 798 uint8_t resp[16]; 799 800 sec = tvp->tv_sec + DIFF19041970; 801 if (pmu_send(sc, PMU_SET_RTC, 4, (uint8_t *)&sec, 16, resp) >= 0) 802 return 0; 803 return -1; 804 } 805 806 void 807 pmu_poweroff(void) 808 { 809 struct pmu_softc *sc; 810 uint8_t cmd[] = {'M', 'A', 'T', 'T'}; 811 uint8_t resp[16]; 812 813 if (pmu0 == NULL) 814 return; 815 sc = pmu0; 816 if (pmu_send(sc, PMU_POWER_OFF, 4, cmd, 16, resp) >= 0) 817 while (1); 818 } 819 820 void 821 pmu_restart(void) 822 { 823 struct pmu_softc *sc; 824 uint8_t resp[16]; 825 826 if (pmu0 == NULL) 827 return; 828 sc = pmu0; 829 if (pmu_send(sc, PMU_RESET_CPU, 0, NULL, 16, resp) >= 0) 830 while (1); 831 } 832 833 void 834 pmu_modem(int on) 835 { 836 struct pmu_softc *sc; 837 uint8_t resp[16], cmd[2] = {0, 0}; 838 839 if (pmu0 == NULL) 840 return; 841 842 sc = pmu0; 843 cmd[0] = PMU_POW0_MODEM | (on ? PMU_POW0_ON : 0); 844 pmu_send(sc, PMU_POWER_CTRL0, 1, cmd, 16, resp); 845 } 846 847 static void 848 pmu_autopoll(void *cookie, int flag) 849 { 850 struct pmu_softc *sc = cookie; 851 /* magical incantation to re-enable autopolling */ 852 uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (flag >> 8) & 0xff, flag & 0xff}; 853 uint8_t resp[16]; 854 855 if (sc->sc_autopoll == flag) 856 return; 857 858 if (flag) { 859 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp); 860 } else { 861 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp); 862 } 863 sc->sc_autopoll = flag & 0xffff; 864 } 865 866 static int 867 pmu_adb_handler(void *cookie, int len, uint8_t *data) 868 { 869 struct pmu_softc *sc = cookie; 870 uint8_t resp[16]; 871 872 if (sc->sc_adb_handler != NULL) { 873 sc->sc_adb_handler(sc->sc_adb_cookie, len, data); 874 /* 875 * the PMU will turn off autopolling after each LISTEN so we 876 * need to re-enable it here whenever we receive an ACK for a 877 * LISTEN command 878 */ 879 if ((data[1] & 0x0c) == 0x08) { 880 uint8_t cmd[] = {0, 0x86, (sc->sc_autopoll >> 8) & 0xff, 881 sc->sc_autopoll & 0xff}; 882 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp); 883 } 884 return 0; 885 } 886 return -1; 887 } 888 889 static int 890 pmu_adb_send(void *cookie, int poll, int command, int len, uint8_t *data) 891 { 892 struct pmu_softc *sc = cookie; 893 int i; 894 uint8_t packet[16], resp[16]; 895 896 /* construct an ADB command packet and send it */ 897 packet[0] = command; 898 packet[1] = 0; 899 packet[2] = len; 900 for (i = 0; i < len; i++) 901 packet[i + 3] = data[i]; 902 (void)pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp); 903 904 return 0; 905 } 906 907 static int 908 pmu_adb_set_handler(void *cookie, void (*handler)(void *, int, uint8_t *), 909 void *hcookie) 910 { 911 struct pmu_softc *sc = cookie; 912 913 /* register a callback for incoming ADB messages */ 914 sc->sc_adb_handler = handler; 915 sc->sc_adb_cookie = hcookie; 916 return 0; 917 } 918 919 static int 920 pmu_i2c_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *_send, 921 size_t send_len, void *_recv, size_t recv_len, int flags) 922 { 923 struct pmu_softc *sc = cookie; 924 const uint8_t *send = _send; 925 uint8_t command[32] = {1, /* bus number */ 926 PMU_I2C_MODE_SIMPLE, 927 0, /* bus2 */ 928 addr, 929 0, /* sub address */ 930 0, /* comb address */ 931 0, /* count */ 932 0 /* data */ 933 }; 934 uint8_t resp[16]; 935 int len, rw; 936 937 rw = addr << 1; 938 command[3] = rw; 939 if (send_len > 0) { 940 command[6] = send_len; 941 memcpy(&command[7], send, send_len); 942 len = send_len + 7; 943 DPRINTF("pmu_i2c_exec(%02x, %d)\n", addr, send_len); 944 945 len = pmu_send(sc, PMU_I2C_CMD, len, command, 16, resp); 946 DPRINTF("resp(%d): %2x %2x\n", len, resp[0], resp[1]); 947 948 if (resp[1] != PMU_I2C_STATUS_OK) { 949 DPRINTF("%s: iic error %d\n", __func__, resp[1]); 950 return -1; 951 } 952 } 953 /* see if we're supposed to read */ 954 if (I2C_OP_READ_P(op)) { 955 rw |= 1; 956 command[3] = rw; 957 command[6] = recv_len; 958 len = pmu_send(sc, PMU_I2C_CMD, 7, command, 16, resp); 959 DPRINTF("resp2(%d): %2x %2x\n", len, resp[0], resp[1]); 960 961 command[0] = 0; 962 len = pmu_send(sc, PMU_I2C_CMD, 1, command, 16, resp); 963 DPRINTF("resp3(%d): %2x %2x %2x\n", len, resp[0], resp[1], 964 resp[2]); 965 if ((len - 2) != recv_len) { 966 DPRINTF("%s: %s(%d) - got %d\n", 967 device_xname(sc->sc_dev), 968 __func__, recv_len, len - 2); 969 return -1; 970 } 971 memcpy(_recv, &resp[2], len - 2); 972 return 0; 973 }; 974 return 0; 975 } 976 977 static void 978 pmu_eject_card(struct pmu_softc *sc, int socket) 979 { 980 uint8_t buf[] = {socket | 4}; 981 uint8_t res[4]; 982 983 atomic_and_32(&sc->sc_pending, ~socket); 984 pmu_send(sc, PMU_EJECT_PCMCIA, 1, buf, 4, res); 985 } 986 987 static void 988 pmu_update_brightness(struct pmu_softc *sc) 989 { 990 int val; 991 uint8_t cmd[2], resp[16]; 992 993 if (sc->sc_brightness == sc->sc_brightness_wanted) 994 return; 995 996 if ((sc->sc_flags & PMU_HAS_BACKLIGHT_CONTROL) == 0) { 997 998 aprint_normal_dev(sc->sc_dev, 999 "this PMU doesn't support backlight control\n"); 1000 sc->sc_brightness = sc->sc_brightness_wanted; 1001 return; 1002 } 1003 1004 if (sc->sc_brightness_wanted == 0) { 1005 1006 /* turn backlight off completely */ 1007 cmd[0] = PMU_POW_OFF | PMU_POW_BACKLIGHT; 1008 pmu_send(sc, PMU_POWER_CTRL, 1, cmd, 16, resp); 1009 sc->sc_brightness = sc->sc_brightness_wanted; 1010 1011 /* don't bother with brightness */ 1012 return; 1013 } 1014 1015 /* turn backlight on if needed */ 1016 if (sc->sc_brightness == 0) { 1017 cmd[0] = PMU_POW_ON | PMU_POW_BACKLIGHT; 1018 pmu_send(sc, PMU_POWER_CTRL, 1, cmd, 16, resp); 1019 } 1020 1021 DPRINTF("pmu_update_brightness: %d -> %d\n", sc->sc_brightness, 1022 sc->sc_brightness_wanted); 1023 1024 val = 0x7f - (sc->sc_brightness_wanted >> 1); 1025 if (val < 0x08) 1026 val = 0x08; 1027 if (val > 0x78) 1028 val = 0x78; 1029 cmd[0] = val; 1030 pmu_send(sc, PMU_SET_BRIGHTNESS, 1, cmd, 16, resp); 1031 1032 sc->sc_brightness = sc->sc_brightness_wanted; 1033 } 1034 1035 static void 1036 pmu_thread(void *cookie) 1037 { 1038 struct pmu_softc *sc = cookie; 1039 //time_t time_bat = time_second; 1040 int ticks = hz, i; 1041 1042 while (1) { 1043 tsleep(&sc->sc_event, PWAIT, "wait", ticks); 1044 if ((sc->sc_pending & 3) != 0) { 1045 DPRINTF("eject %d\n", sc->sc_pending & 3); 1046 for (i = 1; i < 3; i++) { 1047 if (i & sc->sc_pending) 1048 pmu_eject_card(sc, i); 1049 } 1050 } 1051 1052 /* see if we need to update brightness */ 1053 if (sc->sc_brightness_wanted != sc->sc_brightness) { 1054 pmu_update_brightness(sc); 1055 } 1056 1057 /* see if we need to update audio volume */ 1058 if (sc->sc_volume_wanted != sc->sc_volume) { 1059 #if 0 1060 set_volume(sc->sc_volume_wanted); 1061 #endif 1062 sc->sc_volume = sc->sc_volume_wanted; 1063 } 1064 1065 if (sc->sc_pending & PMU_EV_LID) { 1066 atomic_and_32(&sc->sc_pending, ~PMU_EV_LID); 1067 sysmon_pswitch_event(&sc->sc_lidswitch, 1068 sc->sc_lid_closed ? PSWITCH_EVENT_PRESSED : 1069 PSWITCH_EVENT_RELEASED); 1070 } 1071 1072 if (sc->sc_pending & PMU_EV_BUTTON) { 1073 atomic_and_32(&sc->sc_pending, ~PMU_EV_BUTTON); 1074 sysmon_pswitch_event(&sc->sc_powerbutton, 1075 sc->sc_button ? PSWITCH_EVENT_PRESSED : 1076 PSWITCH_EVENT_RELEASED); 1077 } 1078 1079 if (sc->sc_callback != NULL) 1080 sc->sc_callback(sc->sc_cb_cookie); 1081 } 1082 } 1083 1084 static int 1085 pmu_print(void *aux, const char *what) 1086 { 1087 1088 return 0; 1089 } 1090 1091 static void 1092 pmu_attach_legacy_battery(struct pmu_softc *sc) 1093 { 1094 struct battery_attach_args baa; 1095 1096 baa.baa_type = BATTERY_TYPE_LEGACY; 1097 baa.baa_pmu_ops = &sc->sc_pmu_ops; 1098 config_found_ia(sc->sc_dev, "pmu_bus", &baa, pmu_print); 1099 } 1100 1101 static void 1102 pmu_attach_smart_battery(struct pmu_softc *sc, int num) 1103 { 1104 struct battery_attach_args baa; 1105 1106 baa.baa_type = BATTERY_TYPE_SMART; 1107 baa.baa_pmu_ops = &sc->sc_pmu_ops; 1108 baa.baa_num = num; 1109 config_found_ia(sc->sc_dev, "pmu_bus", &baa, pmu_print); 1110 } 1111
Indexes created Fri Sep 26 08:10:20 GMT 2025