twl92230.c (24988B)
1 /* 2 * TI TWL92230C energy-management companion device for the OMAP24xx. 3 * Aka. Menelaus (N4200 MENELAUS1_V2.2) 4 * 5 * Copyright (C) 2008 Nokia Corporation 6 * Written by Andrzej Zaborowski <andrew@openedhand.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 or 11 * (at your option) version 3 of the License. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License along 19 * with this program; if not, see <http://www.gnu.org/licenses/>. 20 */ 21 22 #include "qemu/osdep.h" 23 #include "qemu/timer.h" 24 #include "hw/i2c/i2c.h" 25 #include "hw/irq.h" 26 #include "migration/qemu-file-types.h" 27 #include "migration/vmstate.h" 28 #include "sysemu/sysemu.h" 29 #include "sysemu/rtc.h" 30 #include "qemu/bcd.h" 31 #include "qemu/module.h" 32 #include "qom/object.h" 33 34 #define VERBOSE 1 35 36 #define TYPE_TWL92230 "twl92230" 37 OBJECT_DECLARE_SIMPLE_TYPE(MenelausState, TWL92230) 38 39 struct MenelausState { 40 I2CSlave parent_obj; 41 42 int firstbyte; 43 uint8_t reg; 44 45 uint8_t vcore[5]; 46 uint8_t dcdc[3]; 47 uint8_t ldo[8]; 48 uint8_t sleep[2]; 49 uint8_t osc; 50 uint8_t detect; 51 uint16_t mask; 52 uint16_t status; 53 uint8_t dir; 54 uint8_t inputs; 55 uint8_t outputs; 56 uint8_t bbsms; 57 uint8_t pull[4]; 58 uint8_t mmc_ctrl[3]; 59 uint8_t mmc_debounce; 60 struct { 61 uint8_t ctrl; 62 uint16_t comp; 63 QEMUTimer *hz_tm; 64 int64_t next; 65 struct tm tm; 66 struct tm new; 67 struct tm alm; 68 int sec_offset; 69 int alm_sec; 70 int next_comp; 71 } rtc; 72 uint16_t rtc_next_vmstate; 73 qemu_irq out[4]; 74 uint8_t pwrbtn_state; 75 }; 76 77 static inline void menelaus_update(MenelausState *s) 78 { 79 qemu_set_irq(s->out[3], s->status & ~s->mask); 80 } 81 82 static inline void menelaus_rtc_start(MenelausState *s) 83 { 84 s->rtc.next += qemu_clock_get_ms(rtc_clock); 85 timer_mod(s->rtc.hz_tm, s->rtc.next); 86 } 87 88 static inline void menelaus_rtc_stop(MenelausState *s) 89 { 90 timer_del(s->rtc.hz_tm); 91 s->rtc.next -= qemu_clock_get_ms(rtc_clock); 92 if (s->rtc.next < 1) 93 s->rtc.next = 1; 94 } 95 96 static void menelaus_rtc_update(MenelausState *s) 97 { 98 qemu_get_timedate(&s->rtc.tm, s->rtc.sec_offset); 99 } 100 101 static void menelaus_alm_update(MenelausState *s) 102 { 103 if ((s->rtc.ctrl & 3) == 3) 104 s->rtc.alm_sec = qemu_timedate_diff(&s->rtc.alm) - s->rtc.sec_offset; 105 } 106 107 static void menelaus_rtc_hz(void *opaque) 108 { 109 MenelausState *s = (MenelausState *) opaque; 110 111 s->rtc.next_comp --; 112 s->rtc.alm_sec --; 113 s->rtc.next += 1000; 114 timer_mod(s->rtc.hz_tm, s->rtc.next); 115 if ((s->rtc.ctrl >> 3) & 3) { /* EVERY */ 116 menelaus_rtc_update(s); 117 if (((s->rtc.ctrl >> 3) & 3) == 1 && !s->rtc.tm.tm_sec) 118 s->status |= 1 << 8; /* RTCTMR */ 119 else if (((s->rtc.ctrl >> 3) & 3) == 2 && !s->rtc.tm.tm_min) 120 s->status |= 1 << 8; /* RTCTMR */ 121 else if (!s->rtc.tm.tm_hour) 122 s->status |= 1 << 8; /* RTCTMR */ 123 } else 124 s->status |= 1 << 8; /* RTCTMR */ 125 if ((s->rtc.ctrl >> 1) & 1) { /* RTC_AL_EN */ 126 if (s->rtc.alm_sec == 0) 127 s->status |= 1 << 9; /* RTCALM */ 128 /* TODO: wake-up */ 129 } 130 if (s->rtc.next_comp <= 0) { 131 s->rtc.next -= muldiv64((int16_t) s->rtc.comp, 1000, 0x8000); 132 s->rtc.next_comp = 3600; 133 } 134 menelaus_update(s); 135 } 136 137 static void menelaus_reset(I2CSlave *i2c) 138 { 139 MenelausState *s = TWL92230(i2c); 140 141 s->reg = 0x00; 142 143 s->vcore[0] = 0x0c; /* XXX: X-loader needs 0x8c? check! */ 144 s->vcore[1] = 0x05; 145 s->vcore[2] = 0x02; 146 s->vcore[3] = 0x0c; 147 s->vcore[4] = 0x03; 148 s->dcdc[0] = 0x33; /* Depends on wiring */ 149 s->dcdc[1] = 0x03; 150 s->dcdc[2] = 0x00; 151 s->ldo[0] = 0x95; 152 s->ldo[1] = 0x7e; 153 s->ldo[2] = 0x00; 154 s->ldo[3] = 0x00; /* Depends on wiring */ 155 s->ldo[4] = 0x03; /* Depends on wiring */ 156 s->ldo[5] = 0x00; 157 s->ldo[6] = 0x00; 158 s->ldo[7] = 0x00; 159 s->sleep[0] = 0x00; 160 s->sleep[1] = 0x00; 161 s->osc = 0x01; 162 s->detect = 0x09; 163 s->mask = 0x0fff; 164 s->status = 0; 165 s->dir = 0x07; 166 s->outputs = 0x00; 167 s->bbsms = 0x00; 168 s->pull[0] = 0x00; 169 s->pull[1] = 0x00; 170 s->pull[2] = 0x00; 171 s->pull[3] = 0x00; 172 s->mmc_ctrl[0] = 0x03; 173 s->mmc_ctrl[1] = 0xc0; 174 s->mmc_ctrl[2] = 0x00; 175 s->mmc_debounce = 0x05; 176 177 if (s->rtc.ctrl & 1) 178 menelaus_rtc_stop(s); 179 s->rtc.ctrl = 0x00; 180 s->rtc.comp = 0x0000; 181 s->rtc.next = 1000; 182 s->rtc.sec_offset = 0; 183 s->rtc.next_comp = 1800; 184 s->rtc.alm_sec = 1800; 185 s->rtc.alm.tm_sec = 0x00; 186 s->rtc.alm.tm_min = 0x00; 187 s->rtc.alm.tm_hour = 0x00; 188 s->rtc.alm.tm_mday = 0x01; 189 s->rtc.alm.tm_mon = 0x00; 190 s->rtc.alm.tm_year = 2004; 191 menelaus_update(s); 192 } 193 194 static void menelaus_gpio_set(void *opaque, int line, int level) 195 { 196 MenelausState *s = (MenelausState *) opaque; 197 198 if (line < 3) { 199 /* No interrupt generated */ 200 s->inputs &= ~(1 << line); 201 s->inputs |= level << line; 202 return; 203 } 204 205 if (!s->pwrbtn_state && level) { 206 s->status |= 1 << 11; /* PSHBTN */ 207 menelaus_update(s); 208 } 209 s->pwrbtn_state = level; 210 } 211 212 #define MENELAUS_REV 0x01 213 #define MENELAUS_VCORE_CTRL1 0x02 214 #define MENELAUS_VCORE_CTRL2 0x03 215 #define MENELAUS_VCORE_CTRL3 0x04 216 #define MENELAUS_VCORE_CTRL4 0x05 217 #define MENELAUS_VCORE_CTRL5 0x06 218 #define MENELAUS_DCDC_CTRL1 0x07 219 #define MENELAUS_DCDC_CTRL2 0x08 220 #define MENELAUS_DCDC_CTRL3 0x09 221 #define MENELAUS_LDO_CTRL1 0x0a 222 #define MENELAUS_LDO_CTRL2 0x0b 223 #define MENELAUS_LDO_CTRL3 0x0c 224 #define MENELAUS_LDO_CTRL4 0x0d 225 #define MENELAUS_LDO_CTRL5 0x0e 226 #define MENELAUS_LDO_CTRL6 0x0f 227 #define MENELAUS_LDO_CTRL7 0x10 228 #define MENELAUS_LDO_CTRL8 0x11 229 #define MENELAUS_SLEEP_CTRL1 0x12 230 #define MENELAUS_SLEEP_CTRL2 0x13 231 #define MENELAUS_DEVICE_OFF 0x14 232 #define MENELAUS_OSC_CTRL 0x15 233 #define MENELAUS_DETECT_CTRL 0x16 234 #define MENELAUS_INT_MASK1 0x17 235 #define MENELAUS_INT_MASK2 0x18 236 #define MENELAUS_INT_STATUS1 0x19 237 #define MENELAUS_INT_STATUS2 0x1a 238 #define MENELAUS_INT_ACK1 0x1b 239 #define MENELAUS_INT_ACK2 0x1c 240 #define MENELAUS_GPIO_CTRL 0x1d 241 #define MENELAUS_GPIO_IN 0x1e 242 #define MENELAUS_GPIO_OUT 0x1f 243 #define MENELAUS_BBSMS 0x20 244 #define MENELAUS_RTC_CTRL 0x21 245 #define MENELAUS_RTC_UPDATE 0x22 246 #define MENELAUS_RTC_SEC 0x23 247 #define MENELAUS_RTC_MIN 0x24 248 #define MENELAUS_RTC_HR 0x25 249 #define MENELAUS_RTC_DAY 0x26 250 #define MENELAUS_RTC_MON 0x27 251 #define MENELAUS_RTC_YR 0x28 252 #define MENELAUS_RTC_WKDAY 0x29 253 #define MENELAUS_RTC_AL_SEC 0x2a 254 #define MENELAUS_RTC_AL_MIN 0x2b 255 #define MENELAUS_RTC_AL_HR 0x2c 256 #define MENELAUS_RTC_AL_DAY 0x2d 257 #define MENELAUS_RTC_AL_MON 0x2e 258 #define MENELAUS_RTC_AL_YR 0x2f 259 #define MENELAUS_RTC_COMP_MSB 0x30 260 #define MENELAUS_RTC_COMP_LSB 0x31 261 #define MENELAUS_S1_PULL_EN 0x32 262 #define MENELAUS_S1_PULL_DIR 0x33 263 #define MENELAUS_S2_PULL_EN 0x34 264 #define MENELAUS_S2_PULL_DIR 0x35 265 #define MENELAUS_MCT_CTRL1 0x36 266 #define MENELAUS_MCT_CTRL2 0x37 267 #define MENELAUS_MCT_CTRL3 0x38 268 #define MENELAUS_MCT_PIN_ST 0x39 269 #define MENELAUS_DEBOUNCE1 0x3a 270 271 static uint8_t menelaus_read(void *opaque, uint8_t addr) 272 { 273 MenelausState *s = (MenelausState *) opaque; 274 275 switch (addr) { 276 case MENELAUS_REV: 277 return 0x22; 278 279 case MENELAUS_VCORE_CTRL1 ... MENELAUS_VCORE_CTRL5: 280 return s->vcore[addr - MENELAUS_VCORE_CTRL1]; 281 282 case MENELAUS_DCDC_CTRL1 ... MENELAUS_DCDC_CTRL3: 283 return s->dcdc[addr - MENELAUS_DCDC_CTRL1]; 284 285 case MENELAUS_LDO_CTRL1 ... MENELAUS_LDO_CTRL8: 286 return s->ldo[addr - MENELAUS_LDO_CTRL1]; 287 288 case MENELAUS_SLEEP_CTRL1: 289 case MENELAUS_SLEEP_CTRL2: 290 return s->sleep[addr - MENELAUS_SLEEP_CTRL1]; 291 292 case MENELAUS_DEVICE_OFF: 293 return 0; 294 295 case MENELAUS_OSC_CTRL: 296 return s->osc | (1 << 7); /* CLK32K_GOOD */ 297 298 case MENELAUS_DETECT_CTRL: 299 return s->detect; 300 301 case MENELAUS_INT_MASK1: 302 return (s->mask >> 0) & 0xff; 303 case MENELAUS_INT_MASK2: 304 return (s->mask >> 8) & 0xff; 305 306 case MENELAUS_INT_STATUS1: 307 return (s->status >> 0) & 0xff; 308 case MENELAUS_INT_STATUS2: 309 return (s->status >> 8) & 0xff; 310 311 case MENELAUS_INT_ACK1: 312 case MENELAUS_INT_ACK2: 313 return 0; 314 315 case MENELAUS_GPIO_CTRL: 316 return s->dir; 317 case MENELAUS_GPIO_IN: 318 return s->inputs | (~s->dir & s->outputs); 319 case MENELAUS_GPIO_OUT: 320 return s->outputs; 321 322 case MENELAUS_BBSMS: 323 return s->bbsms; 324 325 case MENELAUS_RTC_CTRL: 326 return s->rtc.ctrl; 327 case MENELAUS_RTC_UPDATE: 328 return 0x00; 329 case MENELAUS_RTC_SEC: 330 menelaus_rtc_update(s); 331 return to_bcd(s->rtc.tm.tm_sec); 332 case MENELAUS_RTC_MIN: 333 menelaus_rtc_update(s); 334 return to_bcd(s->rtc.tm.tm_min); 335 case MENELAUS_RTC_HR: 336 menelaus_rtc_update(s); 337 if ((s->rtc.ctrl >> 2) & 1) /* MODE12_n24 */ 338 return to_bcd((s->rtc.tm.tm_hour % 12) + 1) | 339 (!!(s->rtc.tm.tm_hour >= 12) << 7); /* PM_nAM */ 340 else 341 return to_bcd(s->rtc.tm.tm_hour); 342 case MENELAUS_RTC_DAY: 343 menelaus_rtc_update(s); 344 return to_bcd(s->rtc.tm.tm_mday); 345 case MENELAUS_RTC_MON: 346 menelaus_rtc_update(s); 347 return to_bcd(s->rtc.tm.tm_mon + 1); 348 case MENELAUS_RTC_YR: 349 menelaus_rtc_update(s); 350 return to_bcd(s->rtc.tm.tm_year - 2000); 351 case MENELAUS_RTC_WKDAY: 352 menelaus_rtc_update(s); 353 return to_bcd(s->rtc.tm.tm_wday); 354 case MENELAUS_RTC_AL_SEC: 355 return to_bcd(s->rtc.alm.tm_sec); 356 case MENELAUS_RTC_AL_MIN: 357 return to_bcd(s->rtc.alm.tm_min); 358 case MENELAUS_RTC_AL_HR: 359 if ((s->rtc.ctrl >> 2) & 1) /* MODE12_n24 */ 360 return to_bcd((s->rtc.alm.tm_hour % 12) + 1) | 361 (!!(s->rtc.alm.tm_hour >= 12) << 7);/* AL_PM_nAM */ 362 else 363 return to_bcd(s->rtc.alm.tm_hour); 364 case MENELAUS_RTC_AL_DAY: 365 return to_bcd(s->rtc.alm.tm_mday); 366 case MENELAUS_RTC_AL_MON: 367 return to_bcd(s->rtc.alm.tm_mon + 1); 368 case MENELAUS_RTC_AL_YR: 369 return to_bcd(s->rtc.alm.tm_year - 2000); 370 case MENELAUS_RTC_COMP_MSB: 371 return (s->rtc.comp >> 8) & 0xff; 372 case MENELAUS_RTC_COMP_LSB: 373 return (s->rtc.comp >> 0) & 0xff; 374 375 case MENELAUS_S1_PULL_EN: 376 return s->pull[0]; 377 case MENELAUS_S1_PULL_DIR: 378 return s->pull[1]; 379 case MENELAUS_S2_PULL_EN: 380 return s->pull[2]; 381 case MENELAUS_S2_PULL_DIR: 382 return s->pull[3]; 383 384 case MENELAUS_MCT_CTRL1 ... MENELAUS_MCT_CTRL3: 385 return s->mmc_ctrl[addr - MENELAUS_MCT_CTRL1]; 386 case MENELAUS_MCT_PIN_ST: 387 /* TODO: return the real Card Detect */ 388 return 0; 389 case MENELAUS_DEBOUNCE1: 390 return s->mmc_debounce; 391 392 default: 393 #ifdef VERBOSE 394 printf("%s: unknown register %02x\n", __func__, addr); 395 #endif 396 break; 397 } 398 return 0; 399 } 400 401 static void menelaus_write(void *opaque, uint8_t addr, uint8_t value) 402 { 403 MenelausState *s = (MenelausState *) opaque; 404 int line; 405 struct tm tm; 406 407 switch (addr) { 408 case MENELAUS_VCORE_CTRL1: 409 s->vcore[0] = (value & 0xe) | MIN(value & 0x1f, 0x12); 410 break; 411 case MENELAUS_VCORE_CTRL2: 412 s->vcore[1] = value; 413 break; 414 case MENELAUS_VCORE_CTRL3: 415 s->vcore[2] = MIN(value & 0x1f, 0x12); 416 break; 417 case MENELAUS_VCORE_CTRL4: 418 s->vcore[3] = MIN(value & 0x1f, 0x12); 419 break; 420 case MENELAUS_VCORE_CTRL5: 421 s->vcore[4] = value & 3; 422 /* XXX 423 * auto set to 3 on M_Active, nRESWARM 424 * auto set to 0 on M_WaitOn, M_Backup 425 */ 426 break; 427 428 case MENELAUS_DCDC_CTRL1: 429 s->dcdc[0] = value & 0x3f; 430 break; 431 case MENELAUS_DCDC_CTRL2: 432 s->dcdc[1] = value & 0x07; 433 /* XXX 434 * auto set to 3 on M_Active, nRESWARM 435 * auto set to 0 on M_WaitOn, M_Backup 436 */ 437 break; 438 case MENELAUS_DCDC_CTRL3: 439 s->dcdc[2] = value & 0x07; 440 break; 441 442 case MENELAUS_LDO_CTRL1: 443 s->ldo[0] = value; 444 break; 445 case MENELAUS_LDO_CTRL2: 446 s->ldo[1] = value & 0x7f; 447 /* XXX 448 * auto set to 0x7e on M_WaitOn, M_Backup 449 */ 450 break; 451 case MENELAUS_LDO_CTRL3: 452 s->ldo[2] = value & 3; 453 /* XXX 454 * auto set to 3 on M_Active, nRESWARM 455 * auto set to 0 on M_WaitOn, M_Backup 456 */ 457 break; 458 case MENELAUS_LDO_CTRL4: 459 s->ldo[3] = value & 3; 460 /* XXX 461 * auto set to 3 on M_Active, nRESWARM 462 * auto set to 0 on M_WaitOn, M_Backup 463 */ 464 break; 465 case MENELAUS_LDO_CTRL5: 466 s->ldo[4] = value & 3; 467 /* XXX 468 * auto set to 3 on M_Active, nRESWARM 469 * auto set to 0 on M_WaitOn, M_Backup 470 */ 471 break; 472 case MENELAUS_LDO_CTRL6: 473 s->ldo[5] = value & 3; 474 break; 475 case MENELAUS_LDO_CTRL7: 476 s->ldo[6] = value & 3; 477 break; 478 case MENELAUS_LDO_CTRL8: 479 s->ldo[7] = value & 3; 480 break; 481 482 case MENELAUS_SLEEP_CTRL1: 483 case MENELAUS_SLEEP_CTRL2: 484 s->sleep[addr - MENELAUS_SLEEP_CTRL1] = value; 485 break; 486 487 case MENELAUS_DEVICE_OFF: 488 if (value & 1) { 489 menelaus_reset(I2C_SLAVE(s)); 490 } 491 break; 492 493 case MENELAUS_OSC_CTRL: 494 s->osc = value & 7; 495 break; 496 497 case MENELAUS_DETECT_CTRL: 498 s->detect = value & 0x7f; 499 break; 500 501 case MENELAUS_INT_MASK1: 502 s->mask &= 0xf00; 503 s->mask |= value << 0; 504 menelaus_update(s); 505 break; 506 case MENELAUS_INT_MASK2: 507 s->mask &= 0x0ff; 508 s->mask |= value << 8; 509 menelaus_update(s); 510 break; 511 512 case MENELAUS_INT_ACK1: 513 s->status &= ~(((uint16_t) value) << 0); 514 menelaus_update(s); 515 break; 516 case MENELAUS_INT_ACK2: 517 s->status &= ~(((uint16_t) value) << 8); 518 menelaus_update(s); 519 break; 520 521 case MENELAUS_GPIO_CTRL: 522 for (line = 0; line < 3; line ++) { 523 if (((s->dir ^ value) >> line) & 1) { 524 qemu_set_irq(s->out[line], 525 ((s->outputs & ~s->dir) >> line) & 1); 526 } 527 } 528 s->dir = value & 0x67; 529 break; 530 case MENELAUS_GPIO_OUT: 531 for (line = 0; line < 3; line ++) { 532 if ((((s->outputs ^ value) & ~s->dir) >> line) & 1) { 533 qemu_set_irq(s->out[line], (s->outputs >> line) & 1); 534 } 535 } 536 s->outputs = value & 0x07; 537 break; 538 539 case MENELAUS_BBSMS: 540 s->bbsms = 0x0d; 541 break; 542 543 case MENELAUS_RTC_CTRL: 544 if ((s->rtc.ctrl ^ value) & 1) { /* RTC_EN */ 545 if (value & 1) 546 menelaus_rtc_start(s); 547 else 548 menelaus_rtc_stop(s); 549 } 550 s->rtc.ctrl = value & 0x1f; 551 menelaus_alm_update(s); 552 break; 553 case MENELAUS_RTC_UPDATE: 554 menelaus_rtc_update(s); 555 memcpy(&tm, &s->rtc.tm, sizeof(tm)); 556 switch (value & 0xf) { 557 case 0: 558 break; 559 case 1: 560 tm.tm_sec = s->rtc.new.tm_sec; 561 break; 562 case 2: 563 tm.tm_min = s->rtc.new.tm_min; 564 break; 565 case 3: 566 if (s->rtc.new.tm_hour > 23) 567 goto rtc_badness; 568 tm.tm_hour = s->rtc.new.tm_hour; 569 break; 570 case 4: 571 if (s->rtc.new.tm_mday < 1) 572 goto rtc_badness; 573 /* TODO check range */ 574 tm.tm_mday = s->rtc.new.tm_mday; 575 break; 576 case 5: 577 if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11) 578 goto rtc_badness; 579 tm.tm_mon = s->rtc.new.tm_mon; 580 break; 581 case 6: 582 tm.tm_year = s->rtc.new.tm_year; 583 break; 584 case 7: 585 /* TODO set .tm_mday instead */ 586 tm.tm_wday = s->rtc.new.tm_wday; 587 break; 588 case 8: 589 if (s->rtc.new.tm_hour > 23) 590 goto rtc_badness; 591 if (s->rtc.new.tm_mday < 1) 592 goto rtc_badness; 593 if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11) 594 goto rtc_badness; 595 tm.tm_sec = s->rtc.new.tm_sec; 596 tm.tm_min = s->rtc.new.tm_min; 597 tm.tm_hour = s->rtc.new.tm_hour; 598 tm.tm_mday = s->rtc.new.tm_mday; 599 tm.tm_mon = s->rtc.new.tm_mon; 600 tm.tm_year = s->rtc.new.tm_year; 601 break; 602 rtc_badness: 603 default: 604 fprintf(stderr, "%s: bad RTC_UPDATE value %02x\n", 605 __func__, value); 606 s->status |= 1 << 10; /* RTCERR */ 607 menelaus_update(s); 608 } 609 s->rtc.sec_offset = qemu_timedate_diff(&tm); 610 break; 611 case MENELAUS_RTC_SEC: 612 s->rtc.tm.tm_sec = from_bcd(value & 0x7f); 613 break; 614 case MENELAUS_RTC_MIN: 615 s->rtc.tm.tm_min = from_bcd(value & 0x7f); 616 break; 617 case MENELAUS_RTC_HR: 618 s->rtc.tm.tm_hour = (s->rtc.ctrl & (1 << 2)) ? /* MODE12_n24 */ 619 MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) : 620 from_bcd(value & 0x3f); 621 break; 622 case MENELAUS_RTC_DAY: 623 s->rtc.tm.tm_mday = from_bcd(value); 624 break; 625 case MENELAUS_RTC_MON: 626 s->rtc.tm.tm_mon = MAX(1, from_bcd(value)) - 1; 627 break; 628 case MENELAUS_RTC_YR: 629 s->rtc.tm.tm_year = 2000 + from_bcd(value); 630 break; 631 case MENELAUS_RTC_WKDAY: 632 s->rtc.tm.tm_mday = from_bcd(value); 633 break; 634 case MENELAUS_RTC_AL_SEC: 635 s->rtc.alm.tm_sec = from_bcd(value & 0x7f); 636 menelaus_alm_update(s); 637 break; 638 case MENELAUS_RTC_AL_MIN: 639 s->rtc.alm.tm_min = from_bcd(value & 0x7f); 640 menelaus_alm_update(s); 641 break; 642 case MENELAUS_RTC_AL_HR: 643 s->rtc.alm.tm_hour = (s->rtc.ctrl & (1 << 2)) ? /* MODE12_n24 */ 644 MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) : 645 from_bcd(value & 0x3f); 646 menelaus_alm_update(s); 647 break; 648 case MENELAUS_RTC_AL_DAY: 649 s->rtc.alm.tm_mday = from_bcd(value); 650 menelaus_alm_update(s); 651 break; 652 case MENELAUS_RTC_AL_MON: 653 s->rtc.alm.tm_mon = MAX(1, from_bcd(value)) - 1; 654 menelaus_alm_update(s); 655 break; 656 case MENELAUS_RTC_AL_YR: 657 s->rtc.alm.tm_year = 2000 + from_bcd(value); 658 menelaus_alm_update(s); 659 break; 660 case MENELAUS_RTC_COMP_MSB: 661 s->rtc.comp &= 0xff; 662 s->rtc.comp |= value << 8; 663 break; 664 case MENELAUS_RTC_COMP_LSB: 665 s->rtc.comp &= 0xff << 8; 666 s->rtc.comp |= value; 667 break; 668 669 case MENELAUS_S1_PULL_EN: 670 s->pull[0] = value; 671 break; 672 case MENELAUS_S1_PULL_DIR: 673 s->pull[1] = value & 0x1f; 674 break; 675 case MENELAUS_S2_PULL_EN: 676 s->pull[2] = value; 677 break; 678 case MENELAUS_S2_PULL_DIR: 679 s->pull[3] = value & 0x1f; 680 break; 681 682 case MENELAUS_MCT_CTRL1: 683 s->mmc_ctrl[0] = value & 0x7f; 684 break; 685 case MENELAUS_MCT_CTRL2: 686 s->mmc_ctrl[1] = value; 687 /* TODO update Card Detect interrupts */ 688 break; 689 case MENELAUS_MCT_CTRL3: 690 s->mmc_ctrl[2] = value & 0xf; 691 break; 692 case MENELAUS_DEBOUNCE1: 693 s->mmc_debounce = value & 0x3f; 694 break; 695 696 default: 697 #ifdef VERBOSE 698 printf("%s: unknown register %02x\n", __func__, addr); 699 #endif 700 break; 701 } 702 } 703 704 static int menelaus_event(I2CSlave *i2c, enum i2c_event event) 705 { 706 MenelausState *s = TWL92230(i2c); 707 708 if (event == I2C_START_SEND) 709 s->firstbyte = 1; 710 711 return 0; 712 } 713 714 static int menelaus_tx(I2CSlave *i2c, uint8_t data) 715 { 716 MenelausState *s = TWL92230(i2c); 717 718 /* Interpret register address byte */ 719 if (s->firstbyte) { 720 s->reg = data; 721 s->firstbyte = 0; 722 } else 723 menelaus_write(s, s->reg ++, data); 724 725 return 0; 726 } 727 728 static uint8_t menelaus_rx(I2CSlave *i2c) 729 { 730 MenelausState *s = TWL92230(i2c); 731 732 return menelaus_read(s, s->reg ++); 733 } 734 735 /* Save restore 32 bit int as uint16_t 736 This is a Big hack, but it is how the old state did it. 737 Or we broke compatibility in the state, or we can't use struct tm 738 */ 739 740 static int get_int32_as_uint16(QEMUFile *f, void *pv, size_t size, 741 const VMStateField *field) 742 { 743 int *v = pv; 744 *v = qemu_get_be16(f); 745 return 0; 746 } 747 748 static int put_int32_as_uint16(QEMUFile *f, void *pv, size_t size, 749 const VMStateField *field, JSONWriter *vmdesc) 750 { 751 int *v = pv; 752 qemu_put_be16(f, *v); 753 754 return 0; 755 } 756 757 static const VMStateInfo vmstate_hack_int32_as_uint16 = { 758 .name = "int32_as_uint16", 759 .get = get_int32_as_uint16, 760 .put = put_int32_as_uint16, 761 }; 762 763 #define VMSTATE_UINT16_HACK(_f, _s) \ 764 VMSTATE_SINGLE(_f, _s, 0, vmstate_hack_int32_as_uint16, int32_t) 765 766 767 static const VMStateDescription vmstate_menelaus_tm = { 768 .name = "menelaus_tm", 769 .version_id = 0, 770 .minimum_version_id = 0, 771 .fields = (VMStateField[]) { 772 VMSTATE_UINT16_HACK(tm_sec, struct tm), 773 VMSTATE_UINT16_HACK(tm_min, struct tm), 774 VMSTATE_UINT16_HACK(tm_hour, struct tm), 775 VMSTATE_UINT16_HACK(tm_mday, struct tm), 776 VMSTATE_UINT16_HACK(tm_min, struct tm), 777 VMSTATE_UINT16_HACK(tm_year, struct tm), 778 VMSTATE_END_OF_LIST() 779 } 780 }; 781 782 static int menelaus_pre_save(void *opaque) 783 { 784 MenelausState *s = opaque; 785 /* Should be <= 1000 */ 786 s->rtc_next_vmstate = s->rtc.next - qemu_clock_get_ms(rtc_clock); 787 788 return 0; 789 } 790 791 static int menelaus_post_load(void *opaque, int version_id) 792 { 793 MenelausState *s = opaque; 794 795 if (s->rtc.ctrl & 1) /* RTC_EN */ 796 menelaus_rtc_stop(s); 797 798 s->rtc.next = s->rtc_next_vmstate; 799 800 menelaus_alm_update(s); 801 menelaus_update(s); 802 if (s->rtc.ctrl & 1) /* RTC_EN */ 803 menelaus_rtc_start(s); 804 return 0; 805 } 806 807 static const VMStateDescription vmstate_menelaus = { 808 .name = "menelaus", 809 .version_id = 0, 810 .minimum_version_id = 0, 811 .pre_save = menelaus_pre_save, 812 .post_load = menelaus_post_load, 813 .fields = (VMStateField[]) { 814 VMSTATE_INT32(firstbyte, MenelausState), 815 VMSTATE_UINT8(reg, MenelausState), 816 VMSTATE_UINT8_ARRAY(vcore, MenelausState, 5), 817 VMSTATE_UINT8_ARRAY(dcdc, MenelausState, 3), 818 VMSTATE_UINT8_ARRAY(ldo, MenelausState, 8), 819 VMSTATE_UINT8_ARRAY(sleep, MenelausState, 2), 820 VMSTATE_UINT8(osc, MenelausState), 821 VMSTATE_UINT8(detect, MenelausState), 822 VMSTATE_UINT16(mask, MenelausState), 823 VMSTATE_UINT16(status, MenelausState), 824 VMSTATE_UINT8(dir, MenelausState), 825 VMSTATE_UINT8(inputs, MenelausState), 826 VMSTATE_UINT8(outputs, MenelausState), 827 VMSTATE_UINT8(bbsms, MenelausState), 828 VMSTATE_UINT8_ARRAY(pull, MenelausState, 4), 829 VMSTATE_UINT8_ARRAY(mmc_ctrl, MenelausState, 3), 830 VMSTATE_UINT8(mmc_debounce, MenelausState), 831 VMSTATE_UINT8(rtc.ctrl, MenelausState), 832 VMSTATE_UINT16(rtc.comp, MenelausState), 833 VMSTATE_UINT16(rtc_next_vmstate, MenelausState), 834 VMSTATE_STRUCT(rtc.new, MenelausState, 0, vmstate_menelaus_tm, 835 struct tm), 836 VMSTATE_STRUCT(rtc.alm, MenelausState, 0, vmstate_menelaus_tm, 837 struct tm), 838 VMSTATE_UINT8(pwrbtn_state, MenelausState), 839 VMSTATE_I2C_SLAVE(parent_obj, MenelausState), 840 VMSTATE_END_OF_LIST() 841 } 842 }; 843 844 static void twl92230_realize(DeviceState *dev, Error **errp) 845 { 846 MenelausState *s = TWL92230(dev); 847 848 s->rtc.hz_tm = timer_new_ms(rtc_clock, menelaus_rtc_hz, s); 849 /* Three output pins plus one interrupt pin. */ 850 qdev_init_gpio_out(dev, s->out, 4); 851 852 /* Three input pins plus one power-button pin. */ 853 qdev_init_gpio_in(dev, menelaus_gpio_set, 4); 854 855 menelaus_reset(I2C_SLAVE(dev)); 856 } 857 858 static void twl92230_class_init(ObjectClass *klass, void *data) 859 { 860 DeviceClass *dc = DEVICE_CLASS(klass); 861 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass); 862 863 dc->realize = twl92230_realize; 864 sc->event = menelaus_event; 865 sc->recv = menelaus_rx; 866 sc->send = menelaus_tx; 867 dc->vmsd = &vmstate_menelaus; 868 } 869 870 static const TypeInfo twl92230_info = { 871 .name = TYPE_TWL92230, 872 .parent = TYPE_I2C_SLAVE, 873 .instance_size = sizeof(MenelausState), 874 .class_init = twl92230_class_init, 875 }; 876 877 static void twl92230_register_types(void) 878 { 879 type_register_static(&twl92230_info); 880 } 881 882 type_init(twl92230_register_types)