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e5c6b25a | 1 | /* |
2 | * TI OMAP processors GPIO emulation. | |
3 | * | |
4 | * Copyright (C) 2006-2008 Andrzej Zaborowski <[email protected]> | |
5 | * Copyright (C) 2007-2009 Nokia Corporation | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 or | |
10 | * (at your option) version 3 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
83c9f4ca | 21 | #include "hw/hw.h" |
0d09e41a | 22 | #include "hw/arm/omap.h" |
83c9f4ca | 23 | #include "hw/sysbus.h" |
77831c20 | 24 | |
e5c6b25a | 25 | struct omap_gpio_s { |
26 | qemu_irq irq; | |
e5c6b25a | 27 | qemu_irq handler[16]; |
28 | ||
29 | uint16_t inputs; | |
30 | uint16_t outputs; | |
31 | uint16_t dir; | |
32 | uint16_t edge; | |
33 | uint16_t mask; | |
34 | uint16_t ints; | |
35 | uint16_t pins; | |
36 | }; | |
37 | ||
1d300b5f AF |
38 | #define TYPE_OMAP1_GPIO "omap-gpio" |
39 | #define OMAP1_GPIO(obj) \ | |
40 | OBJECT_CHECK(struct omap_gpif_s, (obj), TYPE_OMAP1_GPIO) | |
41 | ||
77831c20 | 42 | struct omap_gpif_s { |
1d300b5f AF |
43 | SysBusDevice parent_obj; |
44 | ||
9244b42d | 45 | MemoryRegion iomem; |
77831c20 JR |
46 | int mpu_model; |
47 | void *clk; | |
48 | struct omap_gpio_s omap1; | |
49 | }; | |
50 | ||
51 | /* General-Purpose I/O of OMAP1 */ | |
e5c6b25a | 52 | static void omap_gpio_set(void *opaque, int line, int level) |
53 | { | |
77831c20 | 54 | struct omap_gpio_s *s = &((struct omap_gpif_s *) opaque)->omap1; |
e5c6b25a | 55 | uint16_t prev = s->inputs; |
56 | ||
57 | if (level) | |
58 | s->inputs |= 1 << line; | |
59 | else | |
60 | s->inputs &= ~(1 << line); | |
61 | ||
62 | if (((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) & | |
63 | (1 << line) & s->dir & ~s->mask) { | |
64 | s->ints |= 1 << line; | |
65 | qemu_irq_raise(s->irq); | |
66 | } | |
67 | } | |
68 | ||
a8170e5e | 69 | static uint64_t omap_gpio_read(void *opaque, hwaddr addr, |
9244b42d | 70 | unsigned size) |
e5c6b25a | 71 | { |
72 | struct omap_gpio_s *s = (struct omap_gpio_s *) opaque; | |
73 | int offset = addr & OMAP_MPUI_REG_MASK; | |
74 | ||
9244b42d AK |
75 | if (size != 2) { |
76 | return omap_badwidth_read16(opaque, addr); | |
77 | } | |
78 | ||
e5c6b25a | 79 | switch (offset) { |
80 | case 0x00: /* DATA_INPUT */ | |
81 | return s->inputs & s->pins; | |
82 | ||
83 | case 0x04: /* DATA_OUTPUT */ | |
84 | return s->outputs; | |
85 | ||
86 | case 0x08: /* DIRECTION_CONTROL */ | |
87 | return s->dir; | |
88 | ||
89 | case 0x0c: /* INTERRUPT_CONTROL */ | |
90 | return s->edge; | |
91 | ||
92 | case 0x10: /* INTERRUPT_MASK */ | |
93 | return s->mask; | |
94 | ||
95 | case 0x14: /* INTERRUPT_STATUS */ | |
96 | return s->ints; | |
97 | ||
98 | case 0x18: /* PIN_CONTROL (not in OMAP310) */ | |
99 | OMAP_BAD_REG(addr); | |
100 | return s->pins; | |
101 | } | |
102 | ||
103 | OMAP_BAD_REG(addr); | |
104 | return 0; | |
105 | } | |
106 | ||
a8170e5e | 107 | static void omap_gpio_write(void *opaque, hwaddr addr, |
9244b42d | 108 | uint64_t value, unsigned size) |
e5c6b25a | 109 | { |
110 | struct omap_gpio_s *s = (struct omap_gpio_s *) opaque; | |
111 | int offset = addr & OMAP_MPUI_REG_MASK; | |
112 | uint16_t diff; | |
113 | int ln; | |
114 | ||
9244b42d AK |
115 | if (size != 2) { |
116 | return omap_badwidth_write16(opaque, addr, value); | |
117 | } | |
118 | ||
e5c6b25a | 119 | switch (offset) { |
120 | case 0x00: /* DATA_INPUT */ | |
121 | OMAP_RO_REG(addr); | |
122 | return; | |
123 | ||
124 | case 0x04: /* DATA_OUTPUT */ | |
125 | diff = (s->outputs ^ value) & ~s->dir; | |
126 | s->outputs = value; | |
127 | while ((ln = ffs(diff))) { | |
128 | ln --; | |
129 | if (s->handler[ln]) | |
130 | qemu_set_irq(s->handler[ln], (value >> ln) & 1); | |
131 | diff &= ~(1 << ln); | |
132 | } | |
133 | break; | |
134 | ||
135 | case 0x08: /* DIRECTION_CONTROL */ | |
136 | diff = s->outputs & (s->dir ^ value); | |
137 | s->dir = value; | |
138 | ||
139 | value = s->outputs & ~s->dir; | |
140 | while ((ln = ffs(diff))) { | |
141 | ln --; | |
142 | if (s->handler[ln]) | |
143 | qemu_set_irq(s->handler[ln], (value >> ln) & 1); | |
144 | diff &= ~(1 << ln); | |
145 | } | |
146 | break; | |
147 | ||
148 | case 0x0c: /* INTERRUPT_CONTROL */ | |
149 | s->edge = value; | |
150 | break; | |
151 | ||
152 | case 0x10: /* INTERRUPT_MASK */ | |
153 | s->mask = value; | |
154 | break; | |
155 | ||
156 | case 0x14: /* INTERRUPT_STATUS */ | |
157 | s->ints &= ~value; | |
158 | if (!s->ints) | |
159 | qemu_irq_lower(s->irq); | |
160 | break; | |
161 | ||
162 | case 0x18: /* PIN_CONTROL (not in OMAP310 TRM) */ | |
163 | OMAP_BAD_REG(addr); | |
164 | s->pins = value; | |
165 | break; | |
166 | ||
167 | default: | |
168 | OMAP_BAD_REG(addr); | |
169 | return; | |
170 | } | |
171 | } | |
172 | ||
173 | /* *Some* sources say the memory region is 32-bit. */ | |
9244b42d AK |
174 | static const MemoryRegionOps omap_gpio_ops = { |
175 | .read = omap_gpio_read, | |
176 | .write = omap_gpio_write, | |
177 | .endianness = DEVICE_NATIVE_ENDIAN, | |
e5c6b25a | 178 | }; |
179 | ||
77831c20 | 180 | static void omap_gpio_reset(struct omap_gpio_s *s) |
e5c6b25a | 181 | { |
182 | s->inputs = 0; | |
183 | s->outputs = ~0; | |
184 | s->dir = ~0; | |
185 | s->edge = ~0; | |
186 | s->mask = ~0; | |
187 | s->ints = 0; | |
188 | s->pins = ~0; | |
189 | } | |
190 | ||
d82310f7 | 191 | struct omap2_gpio_s { |
192 | qemu_irq irq[2]; | |
193 | qemu_irq wkup; | |
77831c20 | 194 | qemu_irq *handler; |
9244b42d | 195 | MemoryRegion iomem; |
d82310f7 | 196 | |
77831c20 | 197 | uint8_t revision; |
d82310f7 | 198 | uint8_t config[2]; |
199 | uint32_t inputs; | |
200 | uint32_t outputs; | |
201 | uint32_t dir; | |
202 | uint32_t level[2]; | |
203 | uint32_t edge[2]; | |
204 | uint32_t mask[2]; | |
205 | uint32_t wumask; | |
206 | uint32_t ints[2]; | |
207 | uint32_t debounce; | |
208 | uint8_t delay; | |
209 | }; | |
210 | ||
74d1e352 AF |
211 | #define TYPE_OMAP2_GPIO "omap2-gpio" |
212 | #define OMAP2_GPIO(obj) \ | |
213 | OBJECT_CHECK(struct omap2_gpif_s, (obj), TYPE_OMAP2_GPIO) | |
214 | ||
77831c20 | 215 | struct omap2_gpif_s { |
74d1e352 AF |
216 | SysBusDevice parent_obj; |
217 | ||
9244b42d | 218 | MemoryRegion iomem; |
77831c20 JR |
219 | int mpu_model; |
220 | void *iclk; | |
221 | void *fclk[6]; | |
222 | int modulecount; | |
223 | struct omap2_gpio_s *modules; | |
224 | qemu_irq *handler; | |
225 | int autoidle; | |
226 | int gpo; | |
227 | }; | |
228 | ||
229 | /* General-Purpose Interface of OMAP2/3 */ | |
d82310f7 | 230 | static inline void omap2_gpio_module_int_update(struct omap2_gpio_s *s, |
77831c20 | 231 | int line) |
d82310f7 | 232 | { |
233 | qemu_set_irq(s->irq[line], s->ints[line] & s->mask[line]); | |
234 | } | |
235 | ||
236 | static void omap2_gpio_module_wake(struct omap2_gpio_s *s, int line) | |
237 | { | |
238 | if (!(s->config[0] & (1 << 2))) /* ENAWAKEUP */ | |
239 | return; | |
240 | if (!(s->config[0] & (3 << 3))) /* Force Idle */ | |
241 | return; | |
242 | if (!(s->wumask & (1 << line))) | |
243 | return; | |
244 | ||
245 | qemu_irq_raise(s->wkup); | |
246 | } | |
247 | ||
248 | static inline void omap2_gpio_module_out_update(struct omap2_gpio_s *s, | |
249 | uint32_t diff) | |
250 | { | |
251 | int ln; | |
252 | ||
253 | s->outputs ^= diff; | |
254 | diff &= ~s->dir; | |
255 | while ((ln = ffs(diff))) { | |
256 | ln --; | |
257 | qemu_set_irq(s->handler[ln], (s->outputs >> ln) & 1); | |
258 | diff &= ~(1 << ln); | |
259 | } | |
260 | } | |
261 | ||
262 | static void omap2_gpio_module_level_update(struct omap2_gpio_s *s, int line) | |
263 | { | |
264 | s->ints[line] |= s->dir & | |
265 | ((s->inputs & s->level[1]) | (~s->inputs & s->level[0])); | |
266 | omap2_gpio_module_int_update(s, line); | |
267 | } | |
268 | ||
269 | static inline void omap2_gpio_module_int(struct omap2_gpio_s *s, int line) | |
270 | { | |
271 | s->ints[0] |= 1 << line; | |
272 | omap2_gpio_module_int_update(s, 0); | |
273 | s->ints[1] |= 1 << line; | |
274 | omap2_gpio_module_int_update(s, 1); | |
275 | omap2_gpio_module_wake(s, line); | |
276 | } | |
277 | ||
77831c20 | 278 | static void omap2_gpio_set(void *opaque, int line, int level) |
d82310f7 | 279 | { |
77831c20 JR |
280 | struct omap2_gpif_s *p = opaque; |
281 | struct omap2_gpio_s *s = &p->modules[line >> 5]; | |
d82310f7 | 282 | |
77831c20 | 283 | line &= 31; |
d82310f7 | 284 | if (level) { |
285 | if (s->dir & (1 << line) & ((~s->inputs & s->edge[0]) | s->level[1])) | |
286 | omap2_gpio_module_int(s, line); | |
287 | s->inputs |= 1 << line; | |
288 | } else { | |
289 | if (s->dir & (1 << line) & ((s->inputs & s->edge[1]) | s->level[0])) | |
290 | omap2_gpio_module_int(s, line); | |
291 | s->inputs &= ~(1 << line); | |
292 | } | |
293 | } | |
294 | ||
295 | static void omap2_gpio_module_reset(struct omap2_gpio_s *s) | |
296 | { | |
297 | s->config[0] = 0; | |
298 | s->config[1] = 2; | |
299 | s->ints[0] = 0; | |
300 | s->ints[1] = 0; | |
301 | s->mask[0] = 0; | |
302 | s->mask[1] = 0; | |
303 | s->wumask = 0; | |
304 | s->dir = ~0; | |
305 | s->level[0] = 0; | |
306 | s->level[1] = 0; | |
307 | s->edge[0] = 0; | |
308 | s->edge[1] = 0; | |
309 | s->debounce = 0; | |
310 | s->delay = 0; | |
311 | } | |
312 | ||
a8170e5e | 313 | static uint32_t omap2_gpio_module_read(void *opaque, hwaddr addr) |
d82310f7 | 314 | { |
315 | struct omap2_gpio_s *s = (struct omap2_gpio_s *) opaque; | |
316 | ||
317 | switch (addr) { | |
318 | case 0x00: /* GPIO_REVISION */ | |
77831c20 | 319 | return s->revision; |
d82310f7 | 320 | |
321 | case 0x10: /* GPIO_SYSCONFIG */ | |
322 | return s->config[0]; | |
323 | ||
324 | case 0x14: /* GPIO_SYSSTATUS */ | |
325 | return 0x01; | |
326 | ||
327 | case 0x18: /* GPIO_IRQSTATUS1 */ | |
328 | return s->ints[0]; | |
329 | ||
330 | case 0x1c: /* GPIO_IRQENABLE1 */ | |
331 | case 0x60: /* GPIO_CLEARIRQENABLE1 */ | |
332 | case 0x64: /* GPIO_SETIRQENABLE1 */ | |
333 | return s->mask[0]; | |
334 | ||
335 | case 0x20: /* GPIO_WAKEUPENABLE */ | |
336 | case 0x80: /* GPIO_CLEARWKUENA */ | |
337 | case 0x84: /* GPIO_SETWKUENA */ | |
338 | return s->wumask; | |
339 | ||
340 | case 0x28: /* GPIO_IRQSTATUS2 */ | |
341 | return s->ints[1]; | |
342 | ||
343 | case 0x2c: /* GPIO_IRQENABLE2 */ | |
344 | case 0x70: /* GPIO_CLEARIRQENABLE2 */ | |
345 | case 0x74: /* GPIO_SETIREQNEABLE2 */ | |
346 | return s->mask[1]; | |
347 | ||
348 | case 0x30: /* GPIO_CTRL */ | |
349 | return s->config[1]; | |
350 | ||
351 | case 0x34: /* GPIO_OE */ | |
352 | return s->dir; | |
353 | ||
354 | case 0x38: /* GPIO_DATAIN */ | |
355 | return s->inputs; | |
356 | ||
357 | case 0x3c: /* GPIO_DATAOUT */ | |
358 | case 0x90: /* GPIO_CLEARDATAOUT */ | |
359 | case 0x94: /* GPIO_SETDATAOUT */ | |
360 | return s->outputs; | |
361 | ||
362 | case 0x40: /* GPIO_LEVELDETECT0 */ | |
363 | return s->level[0]; | |
364 | ||
365 | case 0x44: /* GPIO_LEVELDETECT1 */ | |
366 | return s->level[1]; | |
367 | ||
368 | case 0x48: /* GPIO_RISINGDETECT */ | |
369 | return s->edge[0]; | |
370 | ||
371 | case 0x4c: /* GPIO_FALLINGDETECT */ | |
372 | return s->edge[1]; | |
373 | ||
374 | case 0x50: /* GPIO_DEBOUNCENABLE */ | |
375 | return s->debounce; | |
376 | ||
377 | case 0x54: /* GPIO_DEBOUNCINGTIME */ | |
378 | return s->delay; | |
379 | } | |
380 | ||
381 | OMAP_BAD_REG(addr); | |
382 | return 0; | |
383 | } | |
384 | ||
a8170e5e | 385 | static void omap2_gpio_module_write(void *opaque, hwaddr addr, |
d82310f7 | 386 | uint32_t value) |
387 | { | |
388 | struct omap2_gpio_s *s = (struct omap2_gpio_s *) opaque; | |
389 | uint32_t diff; | |
390 | int ln; | |
391 | ||
392 | switch (addr) { | |
393 | case 0x00: /* GPIO_REVISION */ | |
394 | case 0x14: /* GPIO_SYSSTATUS */ | |
395 | case 0x38: /* GPIO_DATAIN */ | |
396 | OMAP_RO_REG(addr); | |
397 | break; | |
398 | ||
399 | case 0x10: /* GPIO_SYSCONFIG */ | |
400 | if (((value >> 3) & 3) == 3) | |
401 | fprintf(stderr, "%s: bad IDLEMODE value\n", __FUNCTION__); | |
402 | if (value & 2) | |
403 | omap2_gpio_module_reset(s); | |
404 | s->config[0] = value & 0x1d; | |
405 | break; | |
406 | ||
407 | case 0x18: /* GPIO_IRQSTATUS1 */ | |
408 | if (s->ints[0] & value) { | |
409 | s->ints[0] &= ~value; | |
410 | omap2_gpio_module_level_update(s, 0); | |
411 | } | |
412 | break; | |
413 | ||
414 | case 0x1c: /* GPIO_IRQENABLE1 */ | |
415 | s->mask[0] = value; | |
416 | omap2_gpio_module_int_update(s, 0); | |
417 | break; | |
418 | ||
419 | case 0x20: /* GPIO_WAKEUPENABLE */ | |
420 | s->wumask = value; | |
421 | break; | |
422 | ||
423 | case 0x28: /* GPIO_IRQSTATUS2 */ | |
424 | if (s->ints[1] & value) { | |
425 | s->ints[1] &= ~value; | |
426 | omap2_gpio_module_level_update(s, 1); | |
427 | } | |
428 | break; | |
429 | ||
430 | case 0x2c: /* GPIO_IRQENABLE2 */ | |
431 | s->mask[1] = value; | |
432 | omap2_gpio_module_int_update(s, 1); | |
433 | break; | |
434 | ||
435 | case 0x30: /* GPIO_CTRL */ | |
436 | s->config[1] = value & 7; | |
437 | break; | |
438 | ||
439 | case 0x34: /* GPIO_OE */ | |
440 | diff = s->outputs & (s->dir ^ value); | |
441 | s->dir = value; | |
442 | ||
443 | value = s->outputs & ~s->dir; | |
444 | while ((ln = ffs(diff))) { | |
445 | diff &= ~(1 <<-- ln); | |
446 | qemu_set_irq(s->handler[ln], (value >> ln) & 1); | |
447 | } | |
448 | ||
449 | omap2_gpio_module_level_update(s, 0); | |
450 | omap2_gpio_module_level_update(s, 1); | |
451 | break; | |
452 | ||
453 | case 0x3c: /* GPIO_DATAOUT */ | |
454 | omap2_gpio_module_out_update(s, s->outputs ^ value); | |
455 | break; | |
456 | ||
457 | case 0x40: /* GPIO_LEVELDETECT0 */ | |
458 | s->level[0] = value; | |
459 | omap2_gpio_module_level_update(s, 0); | |
460 | omap2_gpio_module_level_update(s, 1); | |
461 | break; | |
462 | ||
463 | case 0x44: /* GPIO_LEVELDETECT1 */ | |
464 | s->level[1] = value; | |
465 | omap2_gpio_module_level_update(s, 0); | |
466 | omap2_gpio_module_level_update(s, 1); | |
467 | break; | |
468 | ||
469 | case 0x48: /* GPIO_RISINGDETECT */ | |
470 | s->edge[0] = value; | |
471 | break; | |
472 | ||
473 | case 0x4c: /* GPIO_FALLINGDETECT */ | |
474 | s->edge[1] = value; | |
475 | break; | |
476 | ||
477 | case 0x50: /* GPIO_DEBOUNCENABLE */ | |
478 | s->debounce = value; | |
479 | break; | |
480 | ||
481 | case 0x54: /* GPIO_DEBOUNCINGTIME */ | |
482 | s->delay = value; | |
483 | break; | |
484 | ||
485 | case 0x60: /* GPIO_CLEARIRQENABLE1 */ | |
486 | s->mask[0] &= ~value; | |
487 | omap2_gpio_module_int_update(s, 0); | |
488 | break; | |
489 | ||
490 | case 0x64: /* GPIO_SETIRQENABLE1 */ | |
491 | s->mask[0] |= value; | |
492 | omap2_gpio_module_int_update(s, 0); | |
493 | break; | |
494 | ||
495 | case 0x70: /* GPIO_CLEARIRQENABLE2 */ | |
496 | s->mask[1] &= ~value; | |
497 | omap2_gpio_module_int_update(s, 1); | |
498 | break; | |
499 | ||
500 | case 0x74: /* GPIO_SETIREQNEABLE2 */ | |
501 | s->mask[1] |= value; | |
502 | omap2_gpio_module_int_update(s, 1); | |
503 | break; | |
504 | ||
505 | case 0x80: /* GPIO_CLEARWKUENA */ | |
506 | s->wumask &= ~value; | |
507 | break; | |
508 | ||
509 | case 0x84: /* GPIO_SETWKUENA */ | |
510 | s->wumask |= value; | |
511 | break; | |
512 | ||
513 | case 0x90: /* GPIO_CLEARDATAOUT */ | |
514 | omap2_gpio_module_out_update(s, s->outputs & value); | |
515 | break; | |
516 | ||
517 | case 0x94: /* GPIO_SETDATAOUT */ | |
518 | omap2_gpio_module_out_update(s, ~s->outputs & value); | |
519 | break; | |
520 | ||
521 | default: | |
522 | OMAP_BAD_REG(addr); | |
523 | return; | |
524 | } | |
525 | } | |
526 | ||
a8170e5e | 527 | static uint32_t omap2_gpio_module_readp(void *opaque, hwaddr addr) |
d82310f7 | 528 | { |
e1556ad5 | 529 | return omap2_gpio_module_read(opaque, addr & ~3) >> ((addr & 3) << 3); |
d82310f7 | 530 | } |
531 | ||
a8170e5e | 532 | static void omap2_gpio_module_writep(void *opaque, hwaddr addr, |
d82310f7 | 533 | uint32_t value) |
534 | { | |
535 | uint32_t cur = 0; | |
536 | uint32_t mask = 0xffff; | |
537 | ||
538 | switch (addr & ~3) { | |
539 | case 0x00: /* GPIO_REVISION */ | |
540 | case 0x14: /* GPIO_SYSSTATUS */ | |
541 | case 0x38: /* GPIO_DATAIN */ | |
542 | OMAP_RO_REG(addr); | |
543 | break; | |
544 | ||
545 | case 0x10: /* GPIO_SYSCONFIG */ | |
546 | case 0x1c: /* GPIO_IRQENABLE1 */ | |
547 | case 0x20: /* GPIO_WAKEUPENABLE */ | |
548 | case 0x2c: /* GPIO_IRQENABLE2 */ | |
549 | case 0x30: /* GPIO_CTRL */ | |
550 | case 0x34: /* GPIO_OE */ | |
551 | case 0x3c: /* GPIO_DATAOUT */ | |
552 | case 0x40: /* GPIO_LEVELDETECT0 */ | |
553 | case 0x44: /* GPIO_LEVELDETECT1 */ | |
554 | case 0x48: /* GPIO_RISINGDETECT */ | |
555 | case 0x4c: /* GPIO_FALLINGDETECT */ | |
556 | case 0x50: /* GPIO_DEBOUNCENABLE */ | |
557 | case 0x54: /* GPIO_DEBOUNCINGTIME */ | |
558 | cur = omap2_gpio_module_read(opaque, addr & ~3) & | |
559 | ~(mask << ((addr & 3) << 3)); | |
560 | ||
561 | /* Fall through. */ | |
562 | case 0x18: /* GPIO_IRQSTATUS1 */ | |
563 | case 0x28: /* GPIO_IRQSTATUS2 */ | |
564 | case 0x60: /* GPIO_CLEARIRQENABLE1 */ | |
565 | case 0x64: /* GPIO_SETIRQENABLE1 */ | |
566 | case 0x70: /* GPIO_CLEARIRQENABLE2 */ | |
567 | case 0x74: /* GPIO_SETIREQNEABLE2 */ | |
568 | case 0x80: /* GPIO_CLEARWKUENA */ | |
569 | case 0x84: /* GPIO_SETWKUENA */ | |
570 | case 0x90: /* GPIO_CLEARDATAOUT */ | |
571 | case 0x94: /* GPIO_SETDATAOUT */ | |
572 | value <<= (addr & 3) << 3; | |
573 | omap2_gpio_module_write(opaque, addr, cur | value); | |
574 | break; | |
575 | ||
576 | default: | |
577 | OMAP_BAD_REG(addr); | |
578 | return; | |
579 | } | |
580 | } | |
581 | ||
9244b42d AK |
582 | static const MemoryRegionOps omap2_gpio_module_ops = { |
583 | .old_mmio = { | |
584 | .read = { | |
585 | omap2_gpio_module_readp, | |
586 | omap2_gpio_module_readp, | |
587 | omap2_gpio_module_read, | |
588 | }, | |
589 | .write = { | |
590 | omap2_gpio_module_writep, | |
591 | omap2_gpio_module_writep, | |
592 | omap2_gpio_module_write, | |
593 | }, | |
594 | }, | |
595 | .endianness = DEVICE_NATIVE_ENDIAN, | |
d82310f7 | 596 | }; |
597 | ||
77831c20 | 598 | static void omap_gpif_reset(DeviceState *dev) |
d82310f7 | 599 | { |
1d300b5f AF |
600 | struct omap_gpif_s *s = OMAP1_GPIO(dev); |
601 | ||
77831c20 | 602 | omap_gpio_reset(&s->omap1); |
d82310f7 | 603 | } |
604 | ||
77831c20 | 605 | static void omap2_gpif_reset(DeviceState *dev) |
d82310f7 | 606 | { |
74d1e352 | 607 | struct omap2_gpif_s *s = OMAP2_GPIO(dev); |
d82310f7 | 608 | int i; |
74d1e352 | 609 | |
77831c20 JR |
610 | for (i = 0; i < s->modulecount; i++) { |
611 | omap2_gpio_module_reset(&s->modules[i]); | |
612 | } | |
d82310f7 | 613 | s->autoidle = 0; |
614 | s->gpo = 0; | |
615 | } | |
616 | ||
a8170e5e | 617 | static uint64_t omap2_gpif_top_read(void *opaque, hwaddr addr, |
9244b42d | 618 | unsigned size) |
d82310f7 | 619 | { |
77831c20 | 620 | struct omap2_gpif_s *s = (struct omap2_gpif_s *) opaque; |
d82310f7 | 621 | |
622 | switch (addr) { | |
623 | case 0x00: /* IPGENERICOCPSPL_REVISION */ | |
624 | return 0x18; | |
625 | ||
626 | case 0x10: /* IPGENERICOCPSPL_SYSCONFIG */ | |
627 | return s->autoidle; | |
628 | ||
629 | case 0x14: /* IPGENERICOCPSPL_SYSSTATUS */ | |
630 | return 0x01; | |
631 | ||
632 | case 0x18: /* IPGENERICOCPSPL_IRQSTATUS */ | |
633 | return 0x00; | |
634 | ||
635 | case 0x40: /* IPGENERICOCPSPL_GPO */ | |
636 | return s->gpo; | |
637 | ||
638 | case 0x50: /* IPGENERICOCPSPL_GPI */ | |
639 | return 0x00; | |
640 | } | |
641 | ||
642 | OMAP_BAD_REG(addr); | |
643 | return 0; | |
644 | } | |
645 | ||
a8170e5e | 646 | static void omap2_gpif_top_write(void *opaque, hwaddr addr, |
9244b42d | 647 | uint64_t value, unsigned size) |
d82310f7 | 648 | { |
77831c20 | 649 | struct omap2_gpif_s *s = (struct omap2_gpif_s *) opaque; |
d82310f7 | 650 | |
651 | switch (addr) { | |
652 | case 0x00: /* IPGENERICOCPSPL_REVISION */ | |
653 | case 0x14: /* IPGENERICOCPSPL_SYSSTATUS */ | |
654 | case 0x18: /* IPGENERICOCPSPL_IRQSTATUS */ | |
655 | case 0x50: /* IPGENERICOCPSPL_GPI */ | |
656 | OMAP_RO_REG(addr); | |
657 | break; | |
658 | ||
659 | case 0x10: /* IPGENERICOCPSPL_SYSCONFIG */ | |
660 | if (value & (1 << 1)) /* SOFTRESET */ | |
74d1e352 | 661 | omap2_gpif_reset(DEVICE(s)); |
d82310f7 | 662 | s->autoidle = value & 1; |
663 | break; | |
664 | ||
665 | case 0x40: /* IPGENERICOCPSPL_GPO */ | |
666 | s->gpo = value & 1; | |
667 | break; | |
668 | ||
669 | default: | |
670 | OMAP_BAD_REG(addr); | |
671 | return; | |
672 | } | |
673 | } | |
674 | ||
9244b42d AK |
675 | static const MemoryRegionOps omap2_gpif_top_ops = { |
676 | .read = omap2_gpif_top_read, | |
677 | .write = omap2_gpif_top_write, | |
678 | .endianness = DEVICE_NATIVE_ENDIAN, | |
d82310f7 | 679 | }; |
680 | ||
1d300b5f | 681 | static int omap_gpio_init(SysBusDevice *sbd) |
d82310f7 | 682 | { |
1d300b5f AF |
683 | DeviceState *dev = DEVICE(sbd); |
684 | struct omap_gpif_s *s = OMAP1_GPIO(dev); | |
685 | ||
77831c20 JR |
686 | if (!s->clk) { |
687 | hw_error("omap-gpio: clk not connected\n"); | |
688 | } | |
1d300b5f AF |
689 | qdev_init_gpio_in(dev, omap_gpio_set, 16); |
690 | qdev_init_gpio_out(dev, s->omap1.handler, 16); | |
691 | sysbus_init_irq(sbd, &s->omap1.irq); | |
b7163687 | 692 | memory_region_init_io(&s->iomem, OBJECT(s), &omap_gpio_ops, &s->omap1, |
9244b42d | 693 | "omap.gpio", 0x1000); |
1d300b5f | 694 | sysbus_init_mmio(sbd, &s->iomem); |
77831c20 JR |
695 | return 0; |
696 | } | |
d82310f7 | 697 | |
74d1e352 | 698 | static int omap2_gpio_init(SysBusDevice *sbd) |
77831c20 | 699 | { |
74d1e352 AF |
700 | DeviceState *dev = DEVICE(sbd); |
701 | struct omap2_gpif_s *s = OMAP2_GPIO(dev); | |
77831c20 | 702 | int i; |
74d1e352 | 703 | |
77831c20 JR |
704 | if (!s->iclk) { |
705 | hw_error("omap2-gpio: iclk not connected\n"); | |
706 | } | |
707 | if (s->mpu_model < omap3430) { | |
708 | s->modulecount = (s->mpu_model < omap2430) ? 4 : 5; | |
b7163687 | 709 | memory_region_init_io(&s->iomem, OBJECT(s), &omap2_gpif_top_ops, s, |
9244b42d | 710 | "omap2.gpio", 0x1000); |
74d1e352 | 711 | sysbus_init_mmio(sbd, &s->iomem); |
77831c20 JR |
712 | } else { |
713 | s->modulecount = 6; | |
714 | } | |
7267c094 AL |
715 | s->modules = g_malloc0(s->modulecount * sizeof(struct omap2_gpio_s)); |
716 | s->handler = g_malloc0(s->modulecount * 32 * sizeof(qemu_irq)); | |
74d1e352 AF |
717 | qdev_init_gpio_in(dev, omap2_gpio_set, s->modulecount * 32); |
718 | qdev_init_gpio_out(dev, s->handler, s->modulecount * 32); | |
77831c20 JR |
719 | for (i = 0; i < s->modulecount; i++) { |
720 | struct omap2_gpio_s *m = &s->modules[i]; | |
721 | if (!s->fclk[i]) { | |
722 | hw_error("omap2-gpio: fclk%d not connected\n", i); | |
723 | } | |
724 | m->revision = (s->mpu_model < omap3430) ? 0x18 : 0x25; | |
725 | m->handler = &s->handler[i * 32]; | |
74d1e352 AF |
726 | sysbus_init_irq(sbd, &m->irq[0]); /* mpu irq */ |
727 | sysbus_init_irq(sbd, &m->irq[1]); /* dsp irq */ | |
728 | sysbus_init_irq(sbd, &m->wkup); | |
b7163687 | 729 | memory_region_init_io(&m->iomem, OBJECT(s), &omap2_gpio_module_ops, m, |
9244b42d | 730 | "omap.gpio-module", 0x1000); |
74d1e352 | 731 | sysbus_init_mmio(sbd, &m->iomem); |
77831c20 JR |
732 | } |
733 | return 0; | |
734 | } | |
d82310f7 | 735 | |
77831c20 JR |
736 | /* Using qdev pointer properties for the clocks is not ideal. |
737 | * qdev should support a generic means of defining a 'port' with | |
738 | * an arbitrary interface for connecting two devices. Then we | |
739 | * could reframe the omap clock API in terms of clock ports, | |
740 | * and get some type safety. For now the best qdev provides is | |
741 | * passing an arbitrary pointer. | |
742 | * (It's not possible to pass in the string which is the clock | |
743 | * name, because this device does not have the necessary information | |
744 | * (ie the struct omap_mpu_state_s*) to do the clockname to pointer | |
745 | * translation.) | |
746 | */ | |
d82310f7 | 747 | |
999e12bb AL |
748 | static Property omap_gpio_properties[] = { |
749 | DEFINE_PROP_INT32("mpu_model", struct omap_gpif_s, mpu_model, 0), | |
750 | DEFINE_PROP_PTR("clk", struct omap_gpif_s, clk), | |
751 | DEFINE_PROP_END_OF_LIST(), | |
77831c20 | 752 | }; |
d82310f7 | 753 | |
999e12bb AL |
754 | static void omap_gpio_class_init(ObjectClass *klass, void *data) |
755 | { | |
39bffca2 | 756 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb AL |
757 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
758 | ||
759 | k->init = omap_gpio_init; | |
39bffca2 AL |
760 | dc->reset = omap_gpif_reset; |
761 | dc->props = omap_gpio_properties; | |
1b111dc1 MA |
762 | /* Reason: pointer property "clk" */ |
763 | dc->cannot_instantiate_with_device_add_yet = true; | |
999e12bb AL |
764 | } |
765 | ||
8c43a6f0 | 766 | static const TypeInfo omap_gpio_info = { |
1d300b5f | 767 | .name = TYPE_OMAP1_GPIO, |
39bffca2 AL |
768 | .parent = TYPE_SYS_BUS_DEVICE, |
769 | .instance_size = sizeof(struct omap_gpif_s), | |
770 | .class_init = omap_gpio_class_init, | |
999e12bb AL |
771 | }; |
772 | ||
773 | static Property omap2_gpio_properties[] = { | |
774 | DEFINE_PROP_INT32("mpu_model", struct omap2_gpif_s, mpu_model, 0), | |
775 | DEFINE_PROP_PTR("iclk", struct omap2_gpif_s, iclk), | |
776 | DEFINE_PROP_PTR("fclk0", struct omap2_gpif_s, fclk[0]), | |
777 | DEFINE_PROP_PTR("fclk1", struct omap2_gpif_s, fclk[1]), | |
778 | DEFINE_PROP_PTR("fclk2", struct omap2_gpif_s, fclk[2]), | |
779 | DEFINE_PROP_PTR("fclk3", struct omap2_gpif_s, fclk[3]), | |
780 | DEFINE_PROP_PTR("fclk4", struct omap2_gpif_s, fclk[4]), | |
781 | DEFINE_PROP_PTR("fclk5", struct omap2_gpif_s, fclk[5]), | |
782 | DEFINE_PROP_END_OF_LIST(), | |
783 | }; | |
784 | ||
785 | static void omap2_gpio_class_init(ObjectClass *klass, void *data) | |
786 | { | |
39bffca2 | 787 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb AL |
788 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
789 | ||
790 | k->init = omap2_gpio_init; | |
39bffca2 AL |
791 | dc->reset = omap2_gpif_reset; |
792 | dc->props = omap2_gpio_properties; | |
1b111dc1 MA |
793 | /* Reason: pointer properties "iclk", "fclk0", ..., "fclk5" */ |
794 | dc->cannot_instantiate_with_device_add_yet = true; | |
999e12bb AL |
795 | } |
796 | ||
8c43a6f0 | 797 | static const TypeInfo omap2_gpio_info = { |
74d1e352 | 798 | .name = TYPE_OMAP2_GPIO, |
39bffca2 AL |
799 | .parent = TYPE_SYS_BUS_DEVICE, |
800 | .instance_size = sizeof(struct omap2_gpif_s), | |
801 | .class_init = omap2_gpio_class_init, | |
77831c20 | 802 | }; |
d82310f7 | 803 | |
83f7d43a | 804 | static void omap_gpio_register_types(void) |
d82310f7 | 805 | { |
39bffca2 AL |
806 | type_register_static(&omap_gpio_info); |
807 | type_register_static(&omap2_gpio_info); | |
d82310f7 | 808 | } |
809 | ||
83f7d43a | 810 | type_init(omap_gpio_register_types) |