hw/arm/bcm2836: Only provide "enabled-cpus" property to multicore SoCs
[qemu.git] / hw / rtc / twl92230.c
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-common.h"
24 #include "qemu/timer.h"
25 #include "hw/i2c/i2c.h"
26 #include "hw/irq.h"
27 #include "migration/qemu-file-types.h"
28 #include "migration/vmstate.h"
29 #include "sysemu/sysemu.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 int reg = 0;
275
276 switch (addr) {
277 case MENELAUS_REV:
278 return 0x22;
279
280 case MENELAUS_VCORE_CTRL5: reg ++;
281 case MENELAUS_VCORE_CTRL4: reg ++;
282 case MENELAUS_VCORE_CTRL3: reg ++;
283 case MENELAUS_VCORE_CTRL2: reg ++;
284 case MENELAUS_VCORE_CTRL1:
285 return s->vcore[reg];
286
287 case MENELAUS_DCDC_CTRL3: reg ++;
288 case MENELAUS_DCDC_CTRL2: reg ++;
289 case MENELAUS_DCDC_CTRL1:
290 return s->dcdc[reg];
291
292 case MENELAUS_LDO_CTRL8: reg ++;
293 case MENELAUS_LDO_CTRL7: reg ++;
294 case MENELAUS_LDO_CTRL6: reg ++;
295 case MENELAUS_LDO_CTRL5: reg ++;
296 case MENELAUS_LDO_CTRL4: reg ++;
297 case MENELAUS_LDO_CTRL3: reg ++;
298 case MENELAUS_LDO_CTRL2: reg ++;
299 case MENELAUS_LDO_CTRL1:
300 return s->ldo[reg];
301
302 case MENELAUS_SLEEP_CTRL2: reg ++;
303 case MENELAUS_SLEEP_CTRL1:
304 return s->sleep[reg];
305
306 case MENELAUS_DEVICE_OFF:
307 return 0;
308
309 case MENELAUS_OSC_CTRL:
310 return s->osc | (1 << 7); /* CLK32K_GOOD */
311
312 case MENELAUS_DETECT_CTRL:
313 return s->detect;
314
315 case MENELAUS_INT_MASK1:
316 return (s->mask >> 0) & 0xff;
317 case MENELAUS_INT_MASK2:
318 return (s->mask >> 8) & 0xff;
319
320 case MENELAUS_INT_STATUS1:
321 return (s->status >> 0) & 0xff;
322 case MENELAUS_INT_STATUS2:
323 return (s->status >> 8) & 0xff;
324
325 case MENELAUS_INT_ACK1:
326 case MENELAUS_INT_ACK2:
327 return 0;
328
329 case MENELAUS_GPIO_CTRL:
330 return s->dir;
331 case MENELAUS_GPIO_IN:
332 return s->inputs | (~s->dir & s->outputs);
333 case MENELAUS_GPIO_OUT:
334 return s->outputs;
335
336 case MENELAUS_BBSMS:
337 return s->bbsms;
338
339 case MENELAUS_RTC_CTRL:
340 return s->rtc.ctrl;
341 case MENELAUS_RTC_UPDATE:
342 return 0x00;
343 case MENELAUS_RTC_SEC:
344 menelaus_rtc_update(s);
345 return to_bcd(s->rtc.tm.tm_sec);
346 case MENELAUS_RTC_MIN:
347 menelaus_rtc_update(s);
348 return to_bcd(s->rtc.tm.tm_min);
349 case MENELAUS_RTC_HR:
350 menelaus_rtc_update(s);
351 if ((s->rtc.ctrl >> 2) & 1) /* MODE12_n24 */
352 return to_bcd((s->rtc.tm.tm_hour % 12) + 1) |
353 (!!(s->rtc.tm.tm_hour >= 12) << 7); /* PM_nAM */
354 else
355 return to_bcd(s->rtc.tm.tm_hour);
356 case MENELAUS_RTC_DAY:
357 menelaus_rtc_update(s);
358 return to_bcd(s->rtc.tm.tm_mday);
359 case MENELAUS_RTC_MON:
360 menelaus_rtc_update(s);
361 return to_bcd(s->rtc.tm.tm_mon + 1);
362 case MENELAUS_RTC_YR:
363 menelaus_rtc_update(s);
364 return to_bcd(s->rtc.tm.tm_year - 2000);
365 case MENELAUS_RTC_WKDAY:
366 menelaus_rtc_update(s);
367 return to_bcd(s->rtc.tm.tm_wday);
368 case MENELAUS_RTC_AL_SEC:
369 return to_bcd(s->rtc.alm.tm_sec);
370 case MENELAUS_RTC_AL_MIN:
371 return to_bcd(s->rtc.alm.tm_min);
372 case MENELAUS_RTC_AL_HR:
373 if ((s->rtc.ctrl >> 2) & 1) /* MODE12_n24 */
374 return to_bcd((s->rtc.alm.tm_hour % 12) + 1) |
375 (!!(s->rtc.alm.tm_hour >= 12) << 7);/* AL_PM_nAM */
376 else
377 return to_bcd(s->rtc.alm.tm_hour);
378 case MENELAUS_RTC_AL_DAY:
379 return to_bcd(s->rtc.alm.tm_mday);
380 case MENELAUS_RTC_AL_MON:
381 return to_bcd(s->rtc.alm.tm_mon + 1);
382 case MENELAUS_RTC_AL_YR:
383 return to_bcd(s->rtc.alm.tm_year - 2000);
384 case MENELAUS_RTC_COMP_MSB:
385 return (s->rtc.comp >> 8) & 0xff;
386 case MENELAUS_RTC_COMP_LSB:
387 return (s->rtc.comp >> 0) & 0xff;
388
389 case MENELAUS_S1_PULL_EN:
390 return s->pull[0];
391 case MENELAUS_S1_PULL_DIR:
392 return s->pull[1];
393 case MENELAUS_S2_PULL_EN:
394 return s->pull[2];
395 case MENELAUS_S2_PULL_DIR:
396 return s->pull[3];
397
398 case MENELAUS_MCT_CTRL3: reg ++;
399 case MENELAUS_MCT_CTRL2: reg ++;
400 case MENELAUS_MCT_CTRL1:
401 return s->mmc_ctrl[reg];
402 case MENELAUS_MCT_PIN_ST:
403 /* TODO: return the real Card Detect */
404 return 0;
405 case MENELAUS_DEBOUNCE1:
406 return s->mmc_debounce;
407
408 default:
409 #ifdef VERBOSE
410 printf("%s: unknown register %02x\n", __func__, addr);
411 #endif
412 break;
413 }
414 return 0;
415 }
416
417 static void menelaus_write(void *opaque, uint8_t addr, uint8_t value)
418 {
419 MenelausState *s = (MenelausState *) opaque;
420 int line;
421 int reg = 0;
422 struct tm tm;
423
424 switch (addr) {
425 case MENELAUS_VCORE_CTRL1:
426 s->vcore[0] = (value & 0xe) | MIN(value & 0x1f, 0x12);
427 break;
428 case MENELAUS_VCORE_CTRL2:
429 s->vcore[1] = value;
430 break;
431 case MENELAUS_VCORE_CTRL3:
432 s->vcore[2] = MIN(value & 0x1f, 0x12);
433 break;
434 case MENELAUS_VCORE_CTRL4:
435 s->vcore[3] = MIN(value & 0x1f, 0x12);
436 break;
437 case MENELAUS_VCORE_CTRL5:
438 s->vcore[4] = value & 3;
439 /* XXX
440 * auto set to 3 on M_Active, nRESWARM
441 * auto set to 0 on M_WaitOn, M_Backup
442 */
443 break;
444
445 case MENELAUS_DCDC_CTRL1:
446 s->dcdc[0] = value & 0x3f;
447 break;
448 case MENELAUS_DCDC_CTRL2:
449 s->dcdc[1] = value & 0x07;
450 /* XXX
451 * auto set to 3 on M_Active, nRESWARM
452 * auto set to 0 on M_WaitOn, M_Backup
453 */
454 break;
455 case MENELAUS_DCDC_CTRL3:
456 s->dcdc[2] = value & 0x07;
457 break;
458
459 case MENELAUS_LDO_CTRL1:
460 s->ldo[0] = value;
461 break;
462 case MENELAUS_LDO_CTRL2:
463 s->ldo[1] = value & 0x7f;
464 /* XXX
465 * auto set to 0x7e on M_WaitOn, M_Backup
466 */
467 break;
468 case MENELAUS_LDO_CTRL3:
469 s->ldo[2] = value & 3;
470 /* XXX
471 * auto set to 3 on M_Active, nRESWARM
472 * auto set to 0 on M_WaitOn, M_Backup
473 */
474 break;
475 case MENELAUS_LDO_CTRL4:
476 s->ldo[3] = value & 3;
477 /* XXX
478 * auto set to 3 on M_Active, nRESWARM
479 * auto set to 0 on M_WaitOn, M_Backup
480 */
481 break;
482 case MENELAUS_LDO_CTRL5:
483 s->ldo[4] = value & 3;
484 /* XXX
485 * auto set to 3 on M_Active, nRESWARM
486 * auto set to 0 on M_WaitOn, M_Backup
487 */
488 break;
489 case MENELAUS_LDO_CTRL6:
490 s->ldo[5] = value & 3;
491 break;
492 case MENELAUS_LDO_CTRL7:
493 s->ldo[6] = value & 3;
494 break;
495 case MENELAUS_LDO_CTRL8:
496 s->ldo[7] = value & 3;
497 break;
498
499 case MENELAUS_SLEEP_CTRL2: reg ++;
500 case MENELAUS_SLEEP_CTRL1:
501 s->sleep[reg] = value;
502 break;
503
504 case MENELAUS_DEVICE_OFF:
505 if (value & 1) {
506 menelaus_reset(I2C_SLAVE(s));
507 }
508 break;
509
510 case MENELAUS_OSC_CTRL:
511 s->osc = value & 7;
512 break;
513
514 case MENELAUS_DETECT_CTRL:
515 s->detect = value & 0x7f;
516 break;
517
518 case MENELAUS_INT_MASK1:
519 s->mask &= 0xf00;
520 s->mask |= value << 0;
521 menelaus_update(s);
522 break;
523 case MENELAUS_INT_MASK2:
524 s->mask &= 0x0ff;
525 s->mask |= value << 8;
526 menelaus_update(s);
527 break;
528
529 case MENELAUS_INT_ACK1:
530 s->status &= ~(((uint16_t) value) << 0);
531 menelaus_update(s);
532 break;
533 case MENELAUS_INT_ACK2:
534 s->status &= ~(((uint16_t) value) << 8);
535 menelaus_update(s);
536 break;
537
538 case MENELAUS_GPIO_CTRL:
539 for (line = 0; line < 3; line ++) {
540 if (((s->dir ^ value) >> line) & 1) {
541 qemu_set_irq(s->out[line],
542 ((s->outputs & ~s->dir) >> line) & 1);
543 }
544 }
545 s->dir = value & 0x67;
546 break;
547 case MENELAUS_GPIO_OUT:
548 for (line = 0; line < 3; line ++) {
549 if ((((s->outputs ^ value) & ~s->dir) >> line) & 1) {
550 qemu_set_irq(s->out[line], (s->outputs >> line) & 1);
551 }
552 }
553 s->outputs = value & 0x07;
554 break;
555
556 case MENELAUS_BBSMS:
557 s->bbsms = 0x0d;
558 break;
559
560 case MENELAUS_RTC_CTRL:
561 if ((s->rtc.ctrl ^ value) & 1) { /* RTC_EN */
562 if (value & 1)
563 menelaus_rtc_start(s);
564 else
565 menelaus_rtc_stop(s);
566 }
567 s->rtc.ctrl = value & 0x1f;
568 menelaus_alm_update(s);
569 break;
570 case MENELAUS_RTC_UPDATE:
571 menelaus_rtc_update(s);
572 memcpy(&tm, &s->rtc.tm, sizeof(tm));
573 switch (value & 0xf) {
574 case 0:
575 break;
576 case 1:
577 tm.tm_sec = s->rtc.new.tm_sec;
578 break;
579 case 2:
580 tm.tm_min = s->rtc.new.tm_min;
581 break;
582 case 3:
583 if (s->rtc.new.tm_hour > 23)
584 goto rtc_badness;
585 tm.tm_hour = s->rtc.new.tm_hour;
586 break;
587 case 4:
588 if (s->rtc.new.tm_mday < 1)
589 goto rtc_badness;
590 /* TODO check range */
591 tm.tm_mday = s->rtc.new.tm_mday;
592 break;
593 case 5:
594 if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11)
595 goto rtc_badness;
596 tm.tm_mon = s->rtc.new.tm_mon;
597 break;
598 case 6:
599 tm.tm_year = s->rtc.new.tm_year;
600 break;
601 case 7:
602 /* TODO set .tm_mday instead */
603 tm.tm_wday = s->rtc.new.tm_wday;
604 break;
605 case 8:
606 if (s->rtc.new.tm_hour > 23)
607 goto rtc_badness;
608 if (s->rtc.new.tm_mday < 1)
609 goto rtc_badness;
610 if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11)
611 goto rtc_badness;
612 tm.tm_sec = s->rtc.new.tm_sec;
613 tm.tm_min = s->rtc.new.tm_min;
614 tm.tm_hour = s->rtc.new.tm_hour;
615 tm.tm_mday = s->rtc.new.tm_mday;
616 tm.tm_mon = s->rtc.new.tm_mon;
617 tm.tm_year = s->rtc.new.tm_year;
618 break;
619 rtc_badness:
620 default:
621 fprintf(stderr, "%s: bad RTC_UPDATE value %02x\n",
622 __func__, value);
623 s->status |= 1 << 10; /* RTCERR */
624 menelaus_update(s);
625 }
626 s->rtc.sec_offset = qemu_timedate_diff(&tm);
627 break;
628 case MENELAUS_RTC_SEC:
629 s->rtc.tm.tm_sec = from_bcd(value & 0x7f);
630 break;
631 case MENELAUS_RTC_MIN:
632 s->rtc.tm.tm_min = from_bcd(value & 0x7f);
633 break;
634 case MENELAUS_RTC_HR:
635 s->rtc.tm.tm_hour = (s->rtc.ctrl & (1 << 2)) ? /* MODE12_n24 */
636 MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) :
637 from_bcd(value & 0x3f);
638 break;
639 case MENELAUS_RTC_DAY:
640 s->rtc.tm.tm_mday = from_bcd(value);
641 break;
642 case MENELAUS_RTC_MON:
643 s->rtc.tm.tm_mon = MAX(1, from_bcd(value)) - 1;
644 break;
645 case MENELAUS_RTC_YR:
646 s->rtc.tm.tm_year = 2000 + from_bcd(value);
647 break;
648 case MENELAUS_RTC_WKDAY:
649 s->rtc.tm.tm_mday = from_bcd(value);
650 break;
651 case MENELAUS_RTC_AL_SEC:
652 s->rtc.alm.tm_sec = from_bcd(value & 0x7f);
653 menelaus_alm_update(s);
654 break;
655 case MENELAUS_RTC_AL_MIN:
656 s->rtc.alm.tm_min = from_bcd(value & 0x7f);
657 menelaus_alm_update(s);
658 break;
659 case MENELAUS_RTC_AL_HR:
660 s->rtc.alm.tm_hour = (s->rtc.ctrl & (1 << 2)) ? /* MODE12_n24 */
661 MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) :
662 from_bcd(value & 0x3f);
663 menelaus_alm_update(s);
664 break;
665 case MENELAUS_RTC_AL_DAY:
666 s->rtc.alm.tm_mday = from_bcd(value);
667 menelaus_alm_update(s);
668 break;
669 case MENELAUS_RTC_AL_MON:
670 s->rtc.alm.tm_mon = MAX(1, from_bcd(value)) - 1;
671 menelaus_alm_update(s);
672 break;
673 case MENELAUS_RTC_AL_YR:
674 s->rtc.alm.tm_year = 2000 + from_bcd(value);
675 menelaus_alm_update(s);
676 break;
677 case MENELAUS_RTC_COMP_MSB:
678 s->rtc.comp &= 0xff;
679 s->rtc.comp |= value << 8;
680 break;
681 case MENELAUS_RTC_COMP_LSB:
682 s->rtc.comp &= 0xff << 8;
683 s->rtc.comp |= value;
684 break;
685
686 case MENELAUS_S1_PULL_EN:
687 s->pull[0] = value;
688 break;
689 case MENELAUS_S1_PULL_DIR:
690 s->pull[1] = value & 0x1f;
691 break;
692 case MENELAUS_S2_PULL_EN:
693 s->pull[2] = value;
694 break;
695 case MENELAUS_S2_PULL_DIR:
696 s->pull[3] = value & 0x1f;
697 break;
698
699 case MENELAUS_MCT_CTRL1:
700 s->mmc_ctrl[0] = value & 0x7f;
701 break;
702 case MENELAUS_MCT_CTRL2:
703 s->mmc_ctrl[1] = value;
704 /* TODO update Card Detect interrupts */
705 break;
706 case MENELAUS_MCT_CTRL3:
707 s->mmc_ctrl[2] = value & 0xf;
708 break;
709 case MENELAUS_DEBOUNCE1:
710 s->mmc_debounce = value & 0x3f;
711 break;
712
713 default:
714 #ifdef VERBOSE
715 printf("%s: unknown register %02x\n", __func__, addr);
716 #endif
717 }
718 }
719
720 static int menelaus_event(I2CSlave *i2c, enum i2c_event event)
721 {
722 MenelausState *s = TWL92230(i2c);
723
724 if (event == I2C_START_SEND)
725 s->firstbyte = 1;
726
727 return 0;
728 }
729
730 static int menelaus_tx(I2CSlave *i2c, uint8_t data)
731 {
732 MenelausState *s = TWL92230(i2c);
733
734 /* Interpret register address byte */
735 if (s->firstbyte) {
736 s->reg = data;
737 s->firstbyte = 0;
738 } else
739 menelaus_write(s, s->reg ++, data);
740
741 return 0;
742 }
743
744 static uint8_t menelaus_rx(I2CSlave *i2c)
745 {
746 MenelausState *s = TWL92230(i2c);
747
748 return menelaus_read(s, s->reg ++);
749 }
750
751 /* Save restore 32 bit int as uint16_t
752 This is a Big hack, but it is how the old state did it.
753 Or we broke compatibility in the state, or we can't use struct tm
754 */
755
756 static int get_int32_as_uint16(QEMUFile *f, void *pv, size_t size,
757 const VMStateField *field)
758 {
759 int *v = pv;
760 *v = qemu_get_be16(f);
761 return 0;
762 }
763
764 static int put_int32_as_uint16(QEMUFile *f, void *pv, size_t size,
765 const VMStateField *field, QJSON *vmdesc)
766 {
767 int *v = pv;
768 qemu_put_be16(f, *v);
769
770 return 0;
771 }
772
773 static const VMStateInfo vmstate_hack_int32_as_uint16 = {
774 .name = "int32_as_uint16",
775 .get = get_int32_as_uint16,
776 .put = put_int32_as_uint16,
777 };
778
779 #define VMSTATE_UINT16_HACK(_f, _s) \
780 VMSTATE_SINGLE(_f, _s, 0, vmstate_hack_int32_as_uint16, int32_t)
781
782
783 static const VMStateDescription vmstate_menelaus_tm = {
784 .name = "menelaus_tm",
785 .version_id = 0,
786 .minimum_version_id = 0,
787 .fields = (VMStateField[]) {
788 VMSTATE_UINT16_HACK(tm_sec, struct tm),
789 VMSTATE_UINT16_HACK(tm_min, struct tm),
790 VMSTATE_UINT16_HACK(tm_hour, struct tm),
791 VMSTATE_UINT16_HACK(tm_mday, struct tm),
792 VMSTATE_UINT16_HACK(tm_min, struct tm),
793 VMSTATE_UINT16_HACK(tm_year, struct tm),
794 VMSTATE_END_OF_LIST()
795 }
796 };
797
798 static int menelaus_pre_save(void *opaque)
799 {
800 MenelausState *s = opaque;
801 /* Should be <= 1000 */
802 s->rtc_next_vmstate = s->rtc.next - qemu_clock_get_ms(rtc_clock);
803
804 return 0;
805 }
806
807 static int menelaus_post_load(void *opaque, int version_id)
808 {
809 MenelausState *s = opaque;
810
811 if (s->rtc.ctrl & 1) /* RTC_EN */
812 menelaus_rtc_stop(s);
813
814 s->rtc.next = s->rtc_next_vmstate;
815
816 menelaus_alm_update(s);
817 menelaus_update(s);
818 if (s->rtc.ctrl & 1) /* RTC_EN */
819 menelaus_rtc_start(s);
820 return 0;
821 }
822
823 static const VMStateDescription vmstate_menelaus = {
824 .name = "menelaus",
825 .version_id = 0,
826 .minimum_version_id = 0,
827 .pre_save = menelaus_pre_save,
828 .post_load = menelaus_post_load,
829 .fields = (VMStateField[]) {
830 VMSTATE_INT32(firstbyte, MenelausState),
831 VMSTATE_UINT8(reg, MenelausState),
832 VMSTATE_UINT8_ARRAY(vcore, MenelausState, 5),
833 VMSTATE_UINT8_ARRAY(dcdc, MenelausState, 3),
834 VMSTATE_UINT8_ARRAY(ldo, MenelausState, 8),
835 VMSTATE_UINT8_ARRAY(sleep, MenelausState, 2),
836 VMSTATE_UINT8(osc, MenelausState),
837 VMSTATE_UINT8(detect, MenelausState),
838 VMSTATE_UINT16(mask, MenelausState),
839 VMSTATE_UINT16(status, MenelausState),
840 VMSTATE_UINT8(dir, MenelausState),
841 VMSTATE_UINT8(inputs, MenelausState),
842 VMSTATE_UINT8(outputs, MenelausState),
843 VMSTATE_UINT8(bbsms, MenelausState),
844 VMSTATE_UINT8_ARRAY(pull, MenelausState, 4),
845 VMSTATE_UINT8_ARRAY(mmc_ctrl, MenelausState, 3),
846 VMSTATE_UINT8(mmc_debounce, MenelausState),
847 VMSTATE_UINT8(rtc.ctrl, MenelausState),
848 VMSTATE_UINT16(rtc.comp, MenelausState),
849 VMSTATE_UINT16(rtc_next_vmstate, MenelausState),
850 VMSTATE_STRUCT(rtc.new, MenelausState, 0, vmstate_menelaus_tm,
851 struct tm),
852 VMSTATE_STRUCT(rtc.alm, MenelausState, 0, vmstate_menelaus_tm,
853 struct tm),
854 VMSTATE_UINT8(pwrbtn_state, MenelausState),
855 VMSTATE_I2C_SLAVE(parent_obj, MenelausState),
856 VMSTATE_END_OF_LIST()
857 }
858 };
859
860 static void twl92230_realize(DeviceState *dev, Error **errp)
861 {
862 MenelausState *s = TWL92230(dev);
863
864 s->rtc.hz_tm = timer_new_ms(rtc_clock, menelaus_rtc_hz, s);
865 /* Three output pins plus one interrupt pin. */
866 qdev_init_gpio_out(dev, s->out, 4);
867
868 /* Three input pins plus one power-button pin. */
869 qdev_init_gpio_in(dev, menelaus_gpio_set, 4);
870
871 menelaus_reset(I2C_SLAVE(dev));
872 }
873
874 static void twl92230_class_init(ObjectClass *klass, void *data)
875 {
876 DeviceClass *dc = DEVICE_CLASS(klass);
877 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
878
879 dc->realize = twl92230_realize;
880 sc->event = menelaus_event;
881 sc->recv = menelaus_rx;
882 sc->send = menelaus_tx;
883 dc->vmsd = &vmstate_menelaus;
884 }
885
886 static const TypeInfo twl92230_info = {
887 .name = TYPE_TWL92230,
888 .parent = TYPE_I2C_SLAVE,
889 .instance_size = sizeof(MenelausState),
890 .class_init = twl92230_class_init,
891 };
892
893 static void twl92230_register_types(void)
894 {
895 type_register_static(&twl92230_info);
896 }
897
898 type_init(twl92230_register_types)