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Commit | Line | Data |
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3746d5c1 TR |
1 | /* |
2 | * PMBus wrapper over SMBus | |
3 | * | |
4 | * Copyright 2021 Google LLC | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0-or-later | |
7 | */ | |
8 | ||
9 | #include "qemu/osdep.h" | |
10 | #include <math.h> | |
3746d5c1 TR |
11 | #include "hw/i2c/pmbus_device.h" |
12 | #include "migration/vmstate.h" | |
13 | #include "qemu/module.h" | |
14 | #include "qemu/log.h" | |
15 | ||
16 | uint16_t pmbus_data2direct_mode(PMBusCoefficients c, uint32_t value) | |
17 | { | |
18 | /* R is usually negative to fit large readings into 16 bits */ | |
19 | uint16_t y = (c.m * value + c.b) * pow(10, c.R); | |
20 | return y; | |
21 | } | |
22 | ||
23 | uint32_t pmbus_direct_mode2data(PMBusCoefficients c, uint16_t value) | |
24 | { | |
25 | /* X = (Y * 10^-R - b) / m */ | |
26 | uint32_t x = (value / pow(10, c.R) - c.b) / c.m; | |
27 | return x; | |
28 | } | |
29 | ||
648a4882 SM |
30 | uint16_t pmbus_data2linear_mode(uint16_t value, int exp) |
31 | { | |
32 | /* L = D * 2^(-e) */ | |
33 | if (exp < 0) { | |
34 | return value << (-exp); | |
35 | } | |
36 | return value >> exp; | |
37 | } | |
38 | ||
39 | uint16_t pmbus_linear_mode2data(uint16_t value, int exp) | |
40 | { | |
41 | /* D = L * 2^e */ | |
42 | if (exp < 0) { | |
43 | return value >> (-exp); | |
44 | } | |
45 | return value << exp; | |
46 | } | |
47 | ||
3746d5c1 TR |
48 | void pmbus_send(PMBusDevice *pmdev, const uint8_t *data, uint16_t len) |
49 | { | |
50 | if (pmdev->out_buf_len + len > SMBUS_DATA_MAX_LEN) { | |
51 | qemu_log_mask(LOG_GUEST_ERROR, | |
52 | "PMBus device tried to send too much data"); | |
53 | len = 0; | |
54 | } | |
55 | ||
56 | for (int i = len - 1; i >= 0; i--) { | |
57 | pmdev->out_buf[i + pmdev->out_buf_len] = data[len - i - 1]; | |
58 | } | |
59 | pmdev->out_buf_len += len; | |
60 | } | |
61 | ||
62 | /* Internal only, convert unsigned ints to the little endian bus */ | |
63 | static void pmbus_send_uint(PMBusDevice *pmdev, uint64_t data, uint8_t size) | |
64 | { | |
65 | uint8_t bytes[8]; | |
66 | g_assert(size <= 8); | |
67 | ||
68 | for (int i = 0; i < size; i++) { | |
69 | bytes[i] = data & 0xFF; | |
70 | data = data >> 8; | |
71 | } | |
72 | pmbus_send(pmdev, bytes, size); | |
73 | } | |
74 | ||
75 | void pmbus_send8(PMBusDevice *pmdev, uint8_t data) | |
76 | { | |
77 | pmbus_send_uint(pmdev, data, 1); | |
78 | } | |
79 | ||
80 | void pmbus_send16(PMBusDevice *pmdev, uint16_t data) | |
81 | { | |
82 | pmbus_send_uint(pmdev, data, 2); | |
83 | } | |
84 | ||
85 | void pmbus_send32(PMBusDevice *pmdev, uint32_t data) | |
86 | { | |
87 | pmbus_send_uint(pmdev, data, 4); | |
88 | } | |
89 | ||
90 | void pmbus_send64(PMBusDevice *pmdev, uint64_t data) | |
91 | { | |
92 | pmbus_send_uint(pmdev, data, 8); | |
93 | } | |
94 | ||
95 | void pmbus_send_string(PMBusDevice *pmdev, const char *data) | |
96 | { | |
97 | size_t len = strlen(data); | |
98 | g_assert(len > 0); | |
99 | g_assert(len + pmdev->out_buf_len < SMBUS_DATA_MAX_LEN); | |
100 | pmdev->out_buf[len + pmdev->out_buf_len] = len; | |
101 | ||
102 | for (int i = len - 1; i >= 0; i--) { | |
103 | pmdev->out_buf[i + pmdev->out_buf_len] = data[len - 1 - i]; | |
104 | } | |
105 | pmdev->out_buf_len += len + 1; | |
106 | } | |
107 | ||
108 | ||
78fdfc59 | 109 | static uint64_t pmbus_receive_uint(PMBusDevice *pmdev) |
3746d5c1 TR |
110 | { |
111 | uint64_t ret = 0; | |
112 | ||
113 | /* Exclude command code from return value */ | |
78fdfc59 TR |
114 | pmdev->in_buf++; |
115 | pmdev->in_buf_len--; | |
3746d5c1 | 116 | |
78fdfc59 TR |
117 | for (int i = pmdev->in_buf_len - 1; i >= 0; i--) { |
118 | ret = ret << 8 | pmdev->in_buf[i]; | |
3746d5c1 TR |
119 | } |
120 | return ret; | |
121 | } | |
122 | ||
123 | uint8_t pmbus_receive8(PMBusDevice *pmdev) | |
124 | { | |
125 | if (pmdev->in_buf_len - 1 != 1) { | |
126 | qemu_log_mask(LOG_GUEST_ERROR, | |
127 | "%s: length mismatch. Expected 1 byte, got %d bytes\n", | |
128 | __func__, pmdev->in_buf_len - 1); | |
129 | } | |
78fdfc59 | 130 | return pmbus_receive_uint(pmdev); |
3746d5c1 TR |
131 | } |
132 | ||
133 | uint16_t pmbus_receive16(PMBusDevice *pmdev) | |
134 | { | |
135 | if (pmdev->in_buf_len - 1 != 2) { | |
136 | qemu_log_mask(LOG_GUEST_ERROR, | |
137 | "%s: length mismatch. Expected 2 bytes, got %d bytes\n", | |
138 | __func__, pmdev->in_buf_len - 1); | |
139 | } | |
78fdfc59 | 140 | return pmbus_receive_uint(pmdev); |
3746d5c1 TR |
141 | } |
142 | ||
143 | uint32_t pmbus_receive32(PMBusDevice *pmdev) | |
144 | { | |
145 | if (pmdev->in_buf_len - 1 != 4) { | |
146 | qemu_log_mask(LOG_GUEST_ERROR, | |
147 | "%s: length mismatch. Expected 4 bytes, got %d bytes\n", | |
148 | __func__, pmdev->in_buf_len - 1); | |
149 | } | |
78fdfc59 | 150 | return pmbus_receive_uint(pmdev); |
3746d5c1 TR |
151 | } |
152 | ||
153 | uint64_t pmbus_receive64(PMBusDevice *pmdev) | |
154 | { | |
155 | if (pmdev->in_buf_len - 1 != 8) { | |
156 | qemu_log_mask(LOG_GUEST_ERROR, | |
157 | "%s: length mismatch. Expected 8 bytes, got %d bytes\n", | |
158 | __func__, pmdev->in_buf_len - 1); | |
159 | } | |
78fdfc59 | 160 | return pmbus_receive_uint(pmdev); |
3746d5c1 TR |
161 | } |
162 | ||
163 | static uint8_t pmbus_out_buf_pop(PMBusDevice *pmdev) | |
164 | { | |
165 | if (pmdev->out_buf_len == 0) { | |
166 | qemu_log_mask(LOG_GUEST_ERROR, | |
167 | "%s: tried to read from empty buffer", | |
168 | __func__); | |
38870253 | 169 | return PMBUS_ERR_BYTE; |
3746d5c1 TR |
170 | } |
171 | uint8_t data = pmdev->out_buf[pmdev->out_buf_len - 1]; | |
172 | pmdev->out_buf_len--; | |
173 | return data; | |
174 | } | |
175 | ||
176 | static void pmbus_quick_cmd(SMBusDevice *smd, uint8_t read) | |
177 | { | |
178 | PMBusDevice *pmdev = PMBUS_DEVICE(smd); | |
179 | PMBusDeviceClass *pmdc = PMBUS_DEVICE_GET_CLASS(pmdev); | |
180 | ||
181 | if (pmdc->quick_cmd) { | |
182 | pmdc->quick_cmd(pmdev, read); | |
183 | } | |
184 | } | |
185 | ||
186 | static void pmbus_pages_alloc(PMBusDevice *pmdev) | |
187 | { | |
188 | /* some PMBus devices don't use the PAGE command, so they get 1 page */ | |
189 | PMBusDeviceClass *k = PMBUS_DEVICE_GET_CLASS(pmdev); | |
190 | if (k->device_num_pages == 0) { | |
191 | k->device_num_pages = 1; | |
192 | } | |
193 | pmdev->num_pages = k->device_num_pages; | |
194 | pmdev->pages = g_new0(PMBusPage, k->device_num_pages); | |
195 | } | |
196 | ||
197 | void pmbus_check_limits(PMBusDevice *pmdev) | |
198 | { | |
199 | for (int i = 0; i < pmdev->num_pages; i++) { | |
200 | if ((pmdev->pages[i].operation & PB_OP_ON) == 0) { | |
201 | continue; /* don't check powered off devices */ | |
202 | } | |
203 | ||
204 | if (pmdev->pages[i].read_vout > pmdev->pages[i].vout_ov_fault_limit) { | |
205 | pmdev->pages[i].status_word |= PB_STATUS_VOUT; | |
206 | pmdev->pages[i].status_vout |= PB_STATUS_VOUT_OV_FAULT; | |
207 | } | |
208 | ||
209 | if (pmdev->pages[i].read_vout > pmdev->pages[i].vout_ov_warn_limit) { | |
210 | pmdev->pages[i].status_word |= PB_STATUS_VOUT; | |
211 | pmdev->pages[i].status_vout |= PB_STATUS_VOUT_OV_WARN; | |
212 | } | |
213 | ||
214 | if (pmdev->pages[i].read_vout < pmdev->pages[i].vout_uv_warn_limit) { | |
215 | pmdev->pages[i].status_word |= PB_STATUS_VOUT; | |
216 | pmdev->pages[i].status_vout |= PB_STATUS_VOUT_UV_WARN; | |
217 | } | |
218 | ||
219 | if (pmdev->pages[i].read_vout < pmdev->pages[i].vout_uv_fault_limit) { | |
220 | pmdev->pages[i].status_word |= PB_STATUS_VOUT; | |
221 | pmdev->pages[i].status_vout |= PB_STATUS_VOUT_UV_FAULT; | |
222 | } | |
223 | ||
224 | if (pmdev->pages[i].read_vin > pmdev->pages[i].vin_ov_warn_limit) { | |
225 | pmdev->pages[i].status_word |= PB_STATUS_INPUT; | |
226 | pmdev->pages[i].status_input |= PB_STATUS_INPUT_VIN_OV_WARN; | |
227 | } | |
228 | ||
229 | if (pmdev->pages[i].read_vin < pmdev->pages[i].vin_uv_warn_limit) { | |
230 | pmdev->pages[i].status_word |= PB_STATUS_INPUT; | |
231 | pmdev->pages[i].status_input |= PB_STATUS_INPUT_VIN_UV_WARN; | |
232 | } | |
233 | ||
234 | if (pmdev->pages[i].read_iout > pmdev->pages[i].iout_oc_warn_limit) { | |
235 | pmdev->pages[i].status_word |= PB_STATUS_IOUT_POUT; | |
236 | pmdev->pages[i].status_iout |= PB_STATUS_IOUT_OC_WARN; | |
237 | } | |
238 | ||
239 | if (pmdev->pages[i].read_iout > pmdev->pages[i].iout_oc_fault_limit) { | |
240 | pmdev->pages[i].status_word |= PB_STATUS_IOUT_POUT; | |
241 | pmdev->pages[i].status_iout |= PB_STATUS_IOUT_OC_FAULT; | |
242 | } | |
243 | ||
244 | if (pmdev->pages[i].read_pin > pmdev->pages[i].pin_op_warn_limit) { | |
245 | pmdev->pages[i].status_word |= PB_STATUS_INPUT; | |
246 | pmdev->pages[i].status_input |= PB_STATUS_INPUT_PIN_OP_WARN; | |
247 | } | |
248 | ||
249 | if (pmdev->pages[i].read_temperature_1 | |
250 | > pmdev->pages[i].ot_fault_limit) { | |
251 | pmdev->pages[i].status_word |= PB_STATUS_TEMPERATURE; | |
252 | pmdev->pages[i].status_temperature |= PB_STATUS_OT_FAULT; | |
253 | } | |
254 | ||
255 | if (pmdev->pages[i].read_temperature_1 | |
256 | > pmdev->pages[i].ot_warn_limit) { | |
257 | pmdev->pages[i].status_word |= PB_STATUS_TEMPERATURE; | |
258 | pmdev->pages[i].status_temperature |= PB_STATUS_OT_WARN; | |
259 | } | |
260 | } | |
261 | } | |
262 | ||
d272d141 PD |
263 | void pmbus_idle(PMBusDevice *pmdev) |
264 | { | |
265 | pmdev->code = PMBUS_IDLE_STATE; | |
266 | } | |
267 | ||
38870253 TR |
268 | /* assert the status_cml error upon receipt of malformed command */ |
269 | static void pmbus_cml_error(PMBusDevice *pmdev) | |
270 | { | |
271 | for (int i = 0; i < pmdev->num_pages; i++) { | |
272 | pmdev->pages[i].status_word |= PMBUS_STATUS_CML; | |
273 | pmdev->pages[i].status_cml |= PB_CML_FAULT_INVALID_CMD; | |
274 | } | |
275 | } | |
276 | ||
3746d5c1 TR |
277 | static uint8_t pmbus_receive_byte(SMBusDevice *smd) |
278 | { | |
279 | PMBusDevice *pmdev = PMBUS_DEVICE(smd); | |
280 | PMBusDeviceClass *pmdc = PMBUS_DEVICE_GET_CLASS(pmdev); | |
38870253 TR |
281 | uint8_t ret = PMBUS_ERR_BYTE; |
282 | uint8_t index; | |
3746d5c1 TR |
283 | |
284 | if (pmdev->out_buf_len != 0) { | |
285 | ret = pmbus_out_buf_pop(pmdev); | |
286 | return ret; | |
287 | } | |
288 | ||
38870253 TR |
289 | /* |
290 | * Reading from all pages will return the value from page 0, | |
dd0b3271 | 291 | * means that all subsequent commands are to be applied to all output. |
38870253 TR |
292 | */ |
293 | if (pmdev->page == PB_ALL_PAGES) { | |
294 | index = 0; | |
38870253 TR |
295 | } else if (pmdev->page > pmdev->num_pages - 1) { |
296 | qemu_log_mask(LOG_GUEST_ERROR, | |
297 | "%s: page %d is out of range\n", | |
298 | __func__, pmdev->page); | |
299 | pmbus_cml_error(pmdev); | |
300 | return PMBUS_ERR_BYTE; | |
301 | } else { | |
302 | index = pmdev->page; | |
303 | } | |
304 | ||
3746d5c1 TR |
305 | switch (pmdev->code) { |
306 | case PMBUS_PAGE: | |
307 | pmbus_send8(pmdev, pmdev->page); | |
308 | break; | |
309 | ||
310 | case PMBUS_OPERATION: /* R/W byte */ | |
311 | pmbus_send8(pmdev, pmdev->pages[index].operation); | |
312 | break; | |
313 | ||
314 | case PMBUS_ON_OFF_CONFIG: /* R/W byte */ | |
315 | pmbus_send8(pmdev, pmdev->pages[index].on_off_config); | |
316 | break; | |
317 | ||
318 | case PMBUS_PHASE: /* R/W byte */ | |
319 | pmbus_send8(pmdev, pmdev->pages[index].phase); | |
320 | break; | |
321 | ||
322 | case PMBUS_WRITE_PROTECT: /* R/W byte */ | |
323 | pmbus_send8(pmdev, pmdev->pages[index].write_protect); | |
324 | break; | |
325 | ||
326 | case PMBUS_CAPABILITY: | |
327 | pmbus_send8(pmdev, pmdev->capability); | |
2192aaae TR |
328 | if (pmdev->capability & BIT(7)) { |
329 | qemu_log_mask(LOG_UNIMP, | |
330 | "%s: PEC is enabled but not yet supported.\n", | |
331 | __func__); | |
332 | } | |
3746d5c1 TR |
333 | break; |
334 | ||
335 | case PMBUS_VOUT_MODE: /* R/W byte */ | |
336 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MODE) { | |
337 | pmbus_send8(pmdev, pmdev->pages[index].vout_mode); | |
338 | } else { | |
339 | goto passthough; | |
340 | } | |
341 | break; | |
342 | ||
343 | case PMBUS_VOUT_COMMAND: /* R/W word */ | |
344 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
345 | pmbus_send16(pmdev, pmdev->pages[index].vout_command); | |
346 | } else { | |
347 | goto passthough; | |
348 | } | |
349 | break; | |
350 | ||
351 | case PMBUS_VOUT_TRIM: /* R/W word */ | |
352 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
353 | pmbus_send16(pmdev, pmdev->pages[index].vout_trim); | |
354 | } else { | |
355 | goto passthough; | |
356 | } | |
357 | break; | |
358 | ||
359 | case PMBUS_VOUT_CAL_OFFSET: /* R/W word */ | |
360 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
361 | pmbus_send16(pmdev, pmdev->pages[index].vout_cal_offset); | |
362 | } else { | |
363 | goto passthough; | |
364 | } | |
365 | break; | |
366 | ||
367 | case PMBUS_VOUT_MAX: /* R/W word */ | |
368 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
369 | pmbus_send16(pmdev, pmdev->pages[index].vout_max); | |
370 | } else { | |
371 | goto passthough; | |
372 | } | |
373 | break; | |
374 | ||
375 | case PMBUS_VOUT_MARGIN_HIGH: /* R/W word */ | |
376 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) { | |
377 | pmbus_send16(pmdev, pmdev->pages[index].vout_margin_high); | |
378 | } else { | |
379 | goto passthough; | |
380 | } | |
381 | break; | |
382 | ||
383 | case PMBUS_VOUT_MARGIN_LOW: /* R/W word */ | |
384 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) { | |
385 | pmbus_send16(pmdev, pmdev->pages[index].vout_margin_low); | |
386 | } else { | |
387 | goto passthough; | |
388 | } | |
389 | break; | |
390 | ||
391 | case PMBUS_VOUT_TRANSITION_RATE: /* R/W word */ | |
392 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
393 | pmbus_send16(pmdev, pmdev->pages[index].vout_transition_rate); | |
394 | } else { | |
395 | goto passthough; | |
396 | } | |
397 | break; | |
398 | ||
399 | case PMBUS_VOUT_DROOP: /* R/W word */ | |
400 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
401 | pmbus_send16(pmdev, pmdev->pages[index].vout_droop); | |
402 | } else { | |
403 | goto passthough; | |
404 | } | |
405 | break; | |
406 | ||
407 | case PMBUS_VOUT_SCALE_LOOP: /* R/W word */ | |
408 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
409 | pmbus_send16(pmdev, pmdev->pages[index].vout_scale_loop); | |
410 | } else { | |
411 | goto passthough; | |
412 | } | |
413 | break; | |
414 | ||
415 | case PMBUS_VOUT_SCALE_MONITOR: /* R/W word */ | |
416 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
417 | pmbus_send16(pmdev, pmdev->pages[index].vout_scale_monitor); | |
418 | } else { | |
419 | goto passthough; | |
420 | } | |
421 | break; | |
422 | ||
32480293 TR |
423 | case PMBUS_VOUT_MIN: /* R/W word */ |
424 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { | |
425 | pmbus_send16(pmdev, pmdev->pages[index].vout_min); | |
426 | } else { | |
427 | goto passthough; | |
428 | } | |
429 | break; | |
430 | ||
3746d5c1 TR |
431 | /* TODO: implement coefficients support */ |
432 | ||
433 | case PMBUS_POUT_MAX: /* R/W word */ | |
434 | if (pmdev->pages[index].page_flags & PB_HAS_POUT) { | |
435 | pmbus_send16(pmdev, pmdev->pages[index].pout_max); | |
436 | } else { | |
437 | goto passthough; | |
438 | } | |
439 | break; | |
440 | ||
441 | case PMBUS_VIN_ON: /* R/W word */ | |
442 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
443 | pmbus_send16(pmdev, pmdev->pages[index].vin_on); | |
444 | } else { | |
445 | goto passthough; | |
446 | } | |
447 | break; | |
448 | ||
449 | case PMBUS_VIN_OFF: /* R/W word */ | |
450 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
451 | pmbus_send16(pmdev, pmdev->pages[index].vin_off); | |
452 | } else { | |
453 | goto passthough; | |
454 | } | |
455 | break; | |
456 | ||
457 | case PMBUS_IOUT_CAL_GAIN: /* R/W word */ | |
458 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT_GAIN) { | |
459 | pmbus_send16(pmdev, pmdev->pages[index].iout_cal_gain); | |
460 | } else { | |
461 | goto passthough; | |
462 | } | |
463 | break; | |
464 | ||
465 | case PMBUS_VOUT_OV_FAULT_LIMIT: /* R/W word */ | |
466 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
467 | pmbus_send16(pmdev, pmdev->pages[index].vout_ov_fault_limit); | |
468 | } else { | |
469 | goto passthough; | |
470 | } | |
471 | break; | |
472 | ||
473 | case PMBUS_VOUT_OV_FAULT_RESPONSE: /* R/W byte */ | |
474 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
475 | pmbus_send8(pmdev, pmdev->pages[index].vout_ov_fault_response); | |
476 | } else { | |
477 | goto passthough; | |
478 | } | |
479 | break; | |
480 | ||
481 | case PMBUS_VOUT_OV_WARN_LIMIT: /* R/W word */ | |
482 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
483 | pmbus_send16(pmdev, pmdev->pages[index].vout_ov_warn_limit); | |
484 | } else { | |
485 | goto passthough; | |
486 | } | |
487 | break; | |
488 | ||
489 | case PMBUS_VOUT_UV_WARN_LIMIT: /* R/W word */ | |
490 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
491 | pmbus_send16(pmdev, pmdev->pages[index].vout_uv_warn_limit); | |
492 | } else { | |
493 | goto passthough; | |
494 | } | |
495 | break; | |
496 | ||
497 | case PMBUS_VOUT_UV_FAULT_LIMIT: /* R/W word */ | |
498 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
499 | pmbus_send16(pmdev, pmdev->pages[index].vout_uv_fault_limit); | |
500 | } else { | |
501 | goto passthough; | |
502 | } | |
503 | break; | |
504 | ||
505 | case PMBUS_VOUT_UV_FAULT_RESPONSE: /* R/W byte */ | |
506 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
507 | pmbus_send8(pmdev, pmdev->pages[index].vout_uv_fault_response); | |
508 | } else { | |
509 | goto passthough; | |
510 | } | |
511 | break; | |
512 | ||
513 | case PMBUS_IOUT_OC_FAULT_LIMIT: /* R/W word */ | |
514 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
515 | pmbus_send16(pmdev, pmdev->pages[index].iout_oc_fault_limit); | |
516 | } else { | |
517 | goto passthough; | |
518 | } | |
519 | break; | |
520 | ||
521 | case PMBUS_IOUT_OC_FAULT_RESPONSE: /* R/W byte */ | |
522 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
523 | pmbus_send8(pmdev, pmdev->pages[index].iout_oc_fault_response); | |
524 | } else { | |
525 | goto passthough; | |
526 | } | |
527 | break; | |
528 | ||
529 | case PMBUS_IOUT_OC_LV_FAULT_LIMIT: /* R/W word */ | |
530 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
531 | pmbus_send16(pmdev, pmdev->pages[index].iout_oc_lv_fault_limit); | |
532 | } else { | |
533 | goto passthough; | |
534 | } | |
535 | break; | |
536 | ||
537 | case PMBUS_IOUT_OC_LV_FAULT_RESPONSE: /* R/W byte */ | |
538 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
539 | pmbus_send8(pmdev, pmdev->pages[index].iout_oc_lv_fault_response); | |
540 | } else { | |
541 | goto passthough; | |
542 | } | |
543 | break; | |
544 | ||
545 | case PMBUS_IOUT_OC_WARN_LIMIT: /* R/W word */ | |
546 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
547 | pmbus_send16(pmdev, pmdev->pages[index].iout_oc_warn_limit); | |
548 | } else { | |
549 | goto passthough; | |
550 | } | |
551 | break; | |
552 | ||
553 | case PMBUS_IOUT_UC_FAULT_LIMIT: /* R/W word */ | |
554 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
555 | pmbus_send16(pmdev, pmdev->pages[index].iout_uc_fault_limit); | |
556 | } else { | |
557 | goto passthough; | |
558 | } | |
559 | break; | |
560 | ||
561 | case PMBUS_IOUT_UC_FAULT_RESPONSE: /* R/W byte */ | |
562 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
563 | pmbus_send8(pmdev, pmdev->pages[index].iout_uc_fault_response); | |
564 | } else { | |
565 | goto passthough; | |
566 | } | |
567 | break; | |
568 | ||
569 | case PMBUS_OT_FAULT_LIMIT: /* R/W word */ | |
570 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
571 | pmbus_send16(pmdev, pmdev->pages[index].ot_fault_limit); | |
572 | } else { | |
573 | goto passthough; | |
574 | } | |
575 | break; | |
576 | ||
577 | case PMBUS_OT_FAULT_RESPONSE: /* R/W byte */ | |
578 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
579 | pmbus_send8(pmdev, pmdev->pages[index].ot_fault_response); | |
580 | } else { | |
581 | goto passthough; | |
582 | } | |
583 | break; | |
584 | ||
585 | case PMBUS_OT_WARN_LIMIT: /* R/W word */ | |
586 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
587 | pmbus_send16(pmdev, pmdev->pages[index].ot_warn_limit); | |
588 | } else { | |
589 | goto passthough; | |
590 | } | |
591 | break; | |
592 | ||
593 | case PMBUS_UT_WARN_LIMIT: /* R/W word */ | |
594 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
595 | pmbus_send16(pmdev, pmdev->pages[index].ut_warn_limit); | |
596 | } else { | |
597 | goto passthough; | |
598 | } | |
599 | break; | |
600 | ||
601 | case PMBUS_UT_FAULT_LIMIT: /* R/W word */ | |
602 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
603 | pmbus_send16(pmdev, pmdev->pages[index].ut_fault_limit); | |
604 | } else { | |
605 | goto passthough; | |
606 | } | |
607 | break; | |
608 | ||
609 | case PMBUS_UT_FAULT_RESPONSE: /* R/W byte */ | |
610 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
611 | pmbus_send8(pmdev, pmdev->pages[index].ut_fault_response); | |
612 | } else { | |
613 | goto passthough; | |
614 | } | |
615 | break; | |
616 | ||
617 | case PMBUS_VIN_OV_FAULT_LIMIT: /* R/W word */ | |
618 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
619 | pmbus_send16(pmdev, pmdev->pages[index].vin_ov_fault_limit); | |
620 | } else { | |
621 | goto passthough; | |
622 | } | |
623 | break; | |
624 | ||
625 | case PMBUS_VIN_OV_FAULT_RESPONSE: /* R/W byte */ | |
626 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
627 | pmbus_send8(pmdev, pmdev->pages[index].vin_ov_fault_response); | |
628 | } else { | |
629 | goto passthough; | |
630 | } | |
631 | break; | |
632 | ||
633 | case PMBUS_VIN_OV_WARN_LIMIT: /* R/W word */ | |
634 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
635 | pmbus_send16(pmdev, pmdev->pages[index].vin_ov_warn_limit); | |
636 | } else { | |
637 | goto passthough; | |
638 | } | |
639 | break; | |
640 | ||
641 | case PMBUS_VIN_UV_WARN_LIMIT: /* R/W word */ | |
642 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
643 | pmbus_send16(pmdev, pmdev->pages[index].vin_uv_warn_limit); | |
644 | } else { | |
645 | goto passthough; | |
646 | } | |
647 | break; | |
648 | ||
649 | case PMBUS_VIN_UV_FAULT_LIMIT: /* R/W word */ | |
650 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
651 | pmbus_send16(pmdev, pmdev->pages[index].vin_uv_fault_limit); | |
652 | } else { | |
653 | goto passthough; | |
654 | } | |
655 | break; | |
656 | ||
657 | case PMBUS_VIN_UV_FAULT_RESPONSE: /* R/W byte */ | |
658 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
659 | pmbus_send8(pmdev, pmdev->pages[index].vin_uv_fault_response); | |
660 | } else { | |
661 | goto passthough; | |
662 | } | |
663 | break; | |
664 | ||
665 | case PMBUS_IIN_OC_FAULT_LIMIT: /* R/W word */ | |
666 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
667 | pmbus_send16(pmdev, pmdev->pages[index].iin_oc_fault_limit); | |
668 | } else { | |
669 | goto passthough; | |
670 | } | |
671 | break; | |
672 | ||
673 | case PMBUS_IIN_OC_FAULT_RESPONSE: /* R/W byte */ | |
674 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
675 | pmbus_send8(pmdev, pmdev->pages[index].iin_oc_fault_response); | |
676 | } else { | |
677 | goto passthough; | |
678 | } | |
679 | break; | |
680 | ||
681 | case PMBUS_IIN_OC_WARN_LIMIT: /* R/W word */ | |
682 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
683 | pmbus_send16(pmdev, pmdev->pages[index].iin_oc_warn_limit); | |
684 | } else { | |
685 | goto passthough; | |
686 | } | |
687 | break; | |
688 | ||
689 | case PMBUS_POUT_OP_FAULT_LIMIT: /* R/W word */ | |
690 | if (pmdev->pages[index].page_flags & PB_HAS_POUT) { | |
691 | pmbus_send16(pmdev, pmdev->pages[index].pout_op_fault_limit); | |
692 | } else { | |
693 | goto passthough; | |
694 | } | |
695 | break; | |
696 | ||
697 | case PMBUS_POUT_OP_FAULT_RESPONSE: /* R/W byte */ | |
698 | if (pmdev->pages[index].page_flags & PB_HAS_POUT) { | |
699 | pmbus_send8(pmdev, pmdev->pages[index].pout_op_fault_response); | |
700 | } else { | |
701 | goto passthough; | |
702 | } | |
703 | break; | |
704 | ||
705 | case PMBUS_POUT_OP_WARN_LIMIT: /* R/W word */ | |
706 | if (pmdev->pages[index].page_flags & PB_HAS_POUT) { | |
707 | pmbus_send16(pmdev, pmdev->pages[index].pout_op_warn_limit); | |
708 | } else { | |
709 | goto passthough; | |
710 | } | |
711 | break; | |
712 | ||
713 | case PMBUS_PIN_OP_WARN_LIMIT: /* R/W word */ | |
714 | if (pmdev->pages[index].page_flags & PB_HAS_PIN) { | |
715 | pmbus_send16(pmdev, pmdev->pages[index].pin_op_warn_limit); | |
716 | } else { | |
717 | goto passthough; | |
718 | } | |
719 | break; | |
720 | ||
721 | case PMBUS_STATUS_BYTE: /* R/W byte */ | |
722 | pmbus_send8(pmdev, pmdev->pages[index].status_word & 0xFF); | |
723 | break; | |
724 | ||
725 | case PMBUS_STATUS_WORD: /* R/W word */ | |
726 | pmbus_send16(pmdev, pmdev->pages[index].status_word); | |
727 | break; | |
728 | ||
729 | case PMBUS_STATUS_VOUT: /* R/W byte */ | |
730 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
731 | pmbus_send8(pmdev, pmdev->pages[index].status_vout); | |
732 | } else { | |
733 | goto passthough; | |
734 | } | |
735 | break; | |
736 | ||
737 | case PMBUS_STATUS_IOUT: /* R/W byte */ | |
738 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
739 | pmbus_send8(pmdev, pmdev->pages[index].status_iout); | |
740 | } else { | |
741 | goto passthough; | |
742 | } | |
743 | break; | |
744 | ||
745 | case PMBUS_STATUS_INPUT: /* R/W byte */ | |
746 | if (pmdev->pages[index].page_flags & PB_HAS_VIN || | |
747 | pmdev->pages[index].page_flags & PB_HAS_IIN || | |
748 | pmdev->pages[index].page_flags & PB_HAS_PIN) { | |
749 | pmbus_send8(pmdev, pmdev->pages[index].status_input); | |
750 | } else { | |
751 | goto passthough; | |
752 | } | |
753 | break; | |
754 | ||
755 | case PMBUS_STATUS_TEMPERATURE: /* R/W byte */ | |
756 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
757 | pmbus_send8(pmdev, pmdev->pages[index].status_temperature); | |
758 | } else { | |
759 | goto passthough; | |
760 | } | |
761 | break; | |
762 | ||
763 | case PMBUS_STATUS_CML: /* R/W byte */ | |
764 | pmbus_send8(pmdev, pmdev->pages[index].status_cml); | |
765 | break; | |
766 | ||
767 | case PMBUS_STATUS_OTHER: /* R/W byte */ | |
768 | pmbus_send8(pmdev, pmdev->pages[index].status_other); | |
769 | break; | |
770 | ||
32480293 TR |
771 | case PMBUS_STATUS_MFR_SPECIFIC: /* R/W byte */ |
772 | pmbus_send8(pmdev, pmdev->pages[index].status_mfr_specific); | |
773 | break; | |
774 | ||
3746d5c1 TR |
775 | case PMBUS_READ_EIN: /* Read-Only block 5 bytes */ |
776 | if (pmdev->pages[index].page_flags & PB_HAS_EIN) { | |
777 | pmbus_send(pmdev, pmdev->pages[index].read_ein, 5); | |
778 | } else { | |
779 | goto passthough; | |
780 | } | |
781 | break; | |
782 | ||
783 | case PMBUS_READ_EOUT: /* Read-Only block 5 bytes */ | |
784 | if (pmdev->pages[index].page_flags & PB_HAS_EOUT) { | |
785 | pmbus_send(pmdev, pmdev->pages[index].read_eout, 5); | |
786 | } else { | |
787 | goto passthough; | |
788 | } | |
789 | break; | |
790 | ||
791 | case PMBUS_READ_VIN: /* Read-Only word */ | |
792 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
793 | pmbus_send16(pmdev, pmdev->pages[index].read_vin); | |
794 | } else { | |
795 | goto passthough; | |
796 | } | |
797 | break; | |
798 | ||
799 | case PMBUS_READ_IIN: /* Read-Only word */ | |
800 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
801 | pmbus_send16(pmdev, pmdev->pages[index].read_iin); | |
802 | } else { | |
803 | goto passthough; | |
804 | } | |
805 | break; | |
806 | ||
807 | case PMBUS_READ_VOUT: /* Read-Only word */ | |
808 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
809 | pmbus_send16(pmdev, pmdev->pages[index].read_vout); | |
810 | } else { | |
811 | goto passthough; | |
812 | } | |
813 | break; | |
814 | ||
815 | case PMBUS_READ_IOUT: /* Read-Only word */ | |
816 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
817 | pmbus_send16(pmdev, pmdev->pages[index].read_iout); | |
818 | } else { | |
819 | goto passthough; | |
820 | } | |
821 | break; | |
822 | ||
823 | case PMBUS_READ_TEMPERATURE_1: /* Read-Only word */ | |
824 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
825 | pmbus_send16(pmdev, pmdev->pages[index].read_temperature_1); | |
826 | } else { | |
827 | goto passthough; | |
828 | } | |
829 | break; | |
830 | ||
831 | case PMBUS_READ_TEMPERATURE_2: /* Read-Only word */ | |
832 | if (pmdev->pages[index].page_flags & PB_HAS_TEMP2) { | |
833 | pmbus_send16(pmdev, pmdev->pages[index].read_temperature_2); | |
834 | } else { | |
835 | goto passthough; | |
836 | } | |
837 | break; | |
838 | ||
839 | case PMBUS_READ_TEMPERATURE_3: /* Read-Only word */ | |
840 | if (pmdev->pages[index].page_flags & PB_HAS_TEMP3) { | |
841 | pmbus_send16(pmdev, pmdev->pages[index].read_temperature_3); | |
842 | } else { | |
843 | goto passthough; | |
844 | } | |
845 | break; | |
846 | ||
847 | case PMBUS_READ_POUT: /* Read-Only word */ | |
848 | if (pmdev->pages[index].page_flags & PB_HAS_POUT) { | |
849 | pmbus_send16(pmdev, pmdev->pages[index].read_pout); | |
850 | } else { | |
851 | goto passthough; | |
852 | } | |
853 | break; | |
854 | ||
855 | case PMBUS_READ_PIN: /* Read-Only word */ | |
856 | if (pmdev->pages[index].page_flags & PB_HAS_PIN) { | |
857 | pmbus_send16(pmdev, pmdev->pages[index].read_pin); | |
858 | } else { | |
859 | goto passthough; | |
860 | } | |
861 | break; | |
862 | ||
863 | case PMBUS_REVISION: /* Read-Only byte */ | |
864 | pmbus_send8(pmdev, pmdev->pages[index].revision); | |
865 | break; | |
866 | ||
867 | case PMBUS_MFR_ID: /* R/W block */ | |
868 | if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) { | |
869 | pmbus_send_string(pmdev, pmdev->pages[index].mfr_id); | |
870 | } else { | |
871 | goto passthough; | |
872 | } | |
873 | break; | |
874 | ||
875 | case PMBUS_MFR_MODEL: /* R/W block */ | |
876 | if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) { | |
877 | pmbus_send_string(pmdev, pmdev->pages[index].mfr_model); | |
878 | } else { | |
879 | goto passthough; | |
880 | } | |
881 | break; | |
882 | ||
883 | case PMBUS_MFR_REVISION: /* R/W block */ | |
884 | if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) { | |
885 | pmbus_send_string(pmdev, pmdev->pages[index].mfr_revision); | |
886 | } else { | |
887 | goto passthough; | |
888 | } | |
889 | break; | |
890 | ||
891 | case PMBUS_MFR_LOCATION: /* R/W block */ | |
892 | if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) { | |
893 | pmbus_send_string(pmdev, pmdev->pages[index].mfr_location); | |
894 | } else { | |
895 | goto passthough; | |
896 | } | |
897 | break; | |
898 | ||
899 | case PMBUS_MFR_VIN_MIN: /* Read-Only word */ | |
900 | if (pmdev->pages[index].page_flags & PB_HAS_VIN_RATING) { | |
901 | pmbus_send16(pmdev, pmdev->pages[index].mfr_vin_min); | |
902 | } else { | |
903 | goto passthough; | |
904 | } | |
905 | break; | |
906 | ||
907 | case PMBUS_MFR_VIN_MAX: /* Read-Only word */ | |
908 | if (pmdev->pages[index].page_flags & PB_HAS_VIN_RATING) { | |
909 | pmbus_send16(pmdev, pmdev->pages[index].mfr_vin_max); | |
910 | } else { | |
911 | goto passthough; | |
912 | } | |
913 | break; | |
914 | ||
915 | case PMBUS_MFR_IIN_MAX: /* Read-Only word */ | |
916 | if (pmdev->pages[index].page_flags & PB_HAS_IIN_RATING) { | |
917 | pmbus_send16(pmdev, pmdev->pages[index].mfr_iin_max); | |
918 | } else { | |
919 | goto passthough; | |
920 | } | |
921 | break; | |
922 | ||
923 | case PMBUS_MFR_PIN_MAX: /* Read-Only word */ | |
924 | if (pmdev->pages[index].page_flags & PB_HAS_PIN_RATING) { | |
925 | pmbus_send16(pmdev, pmdev->pages[index].mfr_pin_max); | |
926 | } else { | |
927 | goto passthough; | |
928 | } | |
929 | break; | |
930 | ||
931 | case PMBUS_MFR_VOUT_MIN: /* Read-Only word */ | |
932 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { | |
933 | pmbus_send16(pmdev, pmdev->pages[index].mfr_vout_min); | |
934 | } else { | |
935 | goto passthough; | |
936 | } | |
937 | break; | |
938 | ||
939 | case PMBUS_MFR_VOUT_MAX: /* Read-Only word */ | |
940 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { | |
941 | pmbus_send16(pmdev, pmdev->pages[index].mfr_vout_max); | |
942 | } else { | |
943 | goto passthough; | |
944 | } | |
945 | break; | |
946 | ||
947 | case PMBUS_MFR_IOUT_MAX: /* Read-Only word */ | |
948 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT_RATING) { | |
949 | pmbus_send16(pmdev, pmdev->pages[index].mfr_iout_max); | |
950 | } else { | |
951 | goto passthough; | |
952 | } | |
953 | break; | |
954 | ||
955 | case PMBUS_MFR_POUT_MAX: /* Read-Only word */ | |
956 | if (pmdev->pages[index].page_flags & PB_HAS_POUT_RATING) { | |
957 | pmbus_send16(pmdev, pmdev->pages[index].mfr_pout_max); | |
958 | } else { | |
959 | goto passthough; | |
960 | } | |
961 | break; | |
962 | ||
963 | case PMBUS_MFR_MAX_TEMP_1: /* R/W word */ | |
964 | if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) { | |
965 | pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_1); | |
966 | } else { | |
967 | goto passthough; | |
968 | } | |
969 | break; | |
970 | ||
971 | case PMBUS_MFR_MAX_TEMP_2: /* R/W word */ | |
972 | if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) { | |
973 | pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_2); | |
974 | } else { | |
975 | goto passthough; | |
976 | } | |
977 | break; | |
978 | ||
979 | case PMBUS_MFR_MAX_TEMP_3: /* R/W word */ | |
980 | if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) { | |
981 | pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_3); | |
982 | } else { | |
983 | goto passthough; | |
984 | } | |
985 | break; | |
986 | ||
d272d141 PD |
987 | case PMBUS_IDLE_STATE: |
988 | pmbus_send8(pmdev, PMBUS_ERR_BYTE); | |
989 | break; | |
990 | ||
3746d5c1 TR |
991 | case PMBUS_CLEAR_FAULTS: /* Send Byte */ |
992 | case PMBUS_PAGE_PLUS_WRITE: /* Block Write-only */ | |
993 | case PMBUS_STORE_DEFAULT_ALL: /* Send Byte */ | |
994 | case PMBUS_RESTORE_DEFAULT_ALL: /* Send Byte */ | |
995 | case PMBUS_STORE_DEFAULT_CODE: /* Write-only Byte */ | |
996 | case PMBUS_RESTORE_DEFAULT_CODE: /* Write-only Byte */ | |
997 | case PMBUS_STORE_USER_ALL: /* Send Byte */ | |
998 | case PMBUS_RESTORE_USER_ALL: /* Send Byte */ | |
999 | case PMBUS_STORE_USER_CODE: /* Write-only Byte */ | |
1000 | case PMBUS_RESTORE_USER_CODE: /* Write-only Byte */ | |
1001 | case PMBUS_QUERY: /* Write-Only */ | |
1002 | qemu_log_mask(LOG_GUEST_ERROR, | |
1003 | "%s: reading from write only register 0x%02x\n", | |
1004 | __func__, pmdev->code); | |
1005 | break; | |
1006 | ||
1007 | passthough: | |
1008 | default: | |
1009 | /* Pass through read request if not handled */ | |
1010 | if (pmdc->receive_byte) { | |
1011 | ret = pmdc->receive_byte(pmdev); | |
1012 | } | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | if (pmdev->out_buf_len != 0) { | |
1017 | ret = pmbus_out_buf_pop(pmdev); | |
1018 | return ret; | |
1019 | } | |
1020 | ||
1021 | return ret; | |
1022 | } | |
1023 | ||
1024 | /* | |
1025 | * PMBus clear faults command applies to all status registers, existing faults | |
1026 | * should separately get re-asserted. | |
1027 | */ | |
1028 | static void pmbus_clear_faults(PMBusDevice *pmdev) | |
1029 | { | |
1030 | for (uint8_t i = 0; i < pmdev->num_pages; i++) { | |
1031 | pmdev->pages[i].status_word = 0; | |
1032 | pmdev->pages[i].status_vout = 0; | |
1033 | pmdev->pages[i].status_iout = 0; | |
1034 | pmdev->pages[i].status_input = 0; | |
1035 | pmdev->pages[i].status_temperature = 0; | |
1036 | pmdev->pages[i].status_cml = 0; | |
1037 | pmdev->pages[i].status_other = 0; | |
1038 | pmdev->pages[i].status_mfr_specific = 0; | |
1039 | pmdev->pages[i].status_fans_1_2 = 0; | |
1040 | pmdev->pages[i].status_fans_3_4 = 0; | |
1041 | } | |
1042 | ||
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * PMBus operation is used to turn On and Off PSUs | |
1047 | * Therefore, default value for the Operation should be PB_OP_ON or 0x80 | |
1048 | */ | |
1049 | static void pmbus_operation(PMBusDevice *pmdev) | |
1050 | { | |
1051 | uint8_t index = pmdev->page; | |
1052 | if ((pmdev->pages[index].operation & PB_OP_ON) == 0) { | |
1053 | pmdev->pages[index].read_vout = 0; | |
1054 | pmdev->pages[index].read_iout = 0; | |
1055 | pmdev->pages[index].read_pout = 0; | |
1056 | return; | |
1057 | } | |
1058 | ||
1059 | if (pmdev->pages[index].operation & (PB_OP_ON | PB_OP_MARGIN_HIGH)) { | |
1060 | pmdev->pages[index].read_vout = pmdev->pages[index].vout_margin_high; | |
1061 | } | |
1062 | ||
1063 | if (pmdev->pages[index].operation & (PB_OP_ON | PB_OP_MARGIN_LOW)) { | |
1064 | pmdev->pages[index].read_vout = pmdev->pages[index].vout_margin_low; | |
1065 | } | |
1066 | pmbus_check_limits(pmdev); | |
1067 | } | |
1068 | ||
1069 | static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len) | |
1070 | { | |
1071 | PMBusDevice *pmdev = PMBUS_DEVICE(smd); | |
1072 | PMBusDeviceClass *pmdc = PMBUS_DEVICE_GET_CLASS(pmdev); | |
1073 | int ret = 0; | |
1074 | uint8_t index; | |
1075 | ||
1076 | if (len == 0) { | |
1077 | qemu_log_mask(LOG_GUEST_ERROR, "%s: writing empty data\n", __func__); | |
38870253 | 1078 | return PMBUS_ERR_BYTE; |
3746d5c1 TR |
1079 | } |
1080 | ||
1081 | if (!pmdev->pages) { /* allocate memory for pages on first use */ | |
1082 | pmbus_pages_alloc(pmdev); | |
1083 | } | |
1084 | ||
1085 | pmdev->in_buf_len = len; | |
1086 | pmdev->in_buf = buf; | |
1087 | ||
1088 | pmdev->code = buf[0]; /* PMBus command code */ | |
1089 | if (len == 1) { /* Single length writes are command codes only */ | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | if (pmdev->code == PMBUS_PAGE) { | |
1094 | pmdev->page = pmbus_receive8(pmdev); | |
1095 | return 0; | |
1096 | } | |
38870253 | 1097 | |
3746d5c1 TR |
1098 | /* loop through all the pages when 0xFF is received */ |
1099 | if (pmdev->page == PB_ALL_PAGES) { | |
1100 | for (int i = 0; i < pmdev->num_pages; i++) { | |
1101 | pmdev->page = i; | |
1102 | pmbus_write_data(smd, buf, len); | |
1103 | } | |
1104 | pmdev->page = PB_ALL_PAGES; | |
1105 | return 0; | |
1106 | } | |
1107 | ||
38870253 TR |
1108 | if (pmdev->page > pmdev->num_pages - 1) { |
1109 | qemu_log_mask(LOG_GUEST_ERROR, | |
1110 | "%s: page %u is out of range\n", | |
1111 | __func__, pmdev->page); | |
1112 | pmdev->page = 0; /* undefined behaviour - reset to page 0 */ | |
1113 | pmbus_cml_error(pmdev); | |
1114 | return PMBUS_ERR_BYTE; | |
1115 | } | |
1116 | ||
3746d5c1 TR |
1117 | index = pmdev->page; |
1118 | ||
1119 | switch (pmdev->code) { | |
1120 | case PMBUS_OPERATION: /* R/W byte */ | |
1121 | pmdev->pages[index].operation = pmbus_receive8(pmdev); | |
1122 | pmbus_operation(pmdev); | |
1123 | break; | |
1124 | ||
1125 | case PMBUS_ON_OFF_CONFIG: /* R/W byte */ | |
1126 | pmdev->pages[index].on_off_config = pmbus_receive8(pmdev); | |
1127 | break; | |
1128 | ||
1129 | case PMBUS_CLEAR_FAULTS: /* Send Byte */ | |
1130 | pmbus_clear_faults(pmdev); | |
1131 | break; | |
1132 | ||
1133 | case PMBUS_PHASE: /* R/W byte */ | |
1134 | pmdev->pages[index].phase = pmbus_receive8(pmdev); | |
1135 | break; | |
1136 | ||
1137 | case PMBUS_PAGE_PLUS_WRITE: /* Block Write-only */ | |
1138 | case PMBUS_WRITE_PROTECT: /* R/W byte */ | |
1139 | pmdev->pages[index].write_protect = pmbus_receive8(pmdev); | |
1140 | break; | |
1141 | ||
1142 | case PMBUS_VOUT_MODE: /* R/W byte */ | |
1143 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MODE) { | |
1144 | pmdev->pages[index].vout_mode = pmbus_receive8(pmdev); | |
1145 | } else { | |
1146 | goto passthrough; | |
1147 | } | |
1148 | break; | |
1149 | ||
1150 | case PMBUS_VOUT_COMMAND: /* R/W word */ | |
1151 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1152 | pmdev->pages[index].vout_command = pmbus_receive16(pmdev); | |
1153 | } else { | |
1154 | goto passthrough; | |
1155 | } | |
1156 | break; | |
1157 | ||
1158 | case PMBUS_VOUT_TRIM: /* R/W word */ | |
1159 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1160 | pmdev->pages[index].vout_trim = pmbus_receive16(pmdev); | |
1161 | } else { | |
1162 | goto passthrough; | |
1163 | } | |
1164 | break; | |
1165 | ||
1166 | case PMBUS_VOUT_CAL_OFFSET: /* R/W word */ | |
1167 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1168 | pmdev->pages[index].vout_cal_offset = pmbus_receive16(pmdev); | |
1169 | } else { | |
1170 | goto passthrough; | |
1171 | } | |
1172 | break; | |
1173 | ||
1174 | case PMBUS_VOUT_MAX: /* R/W word */ | |
1175 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1176 | pmdev->pages[index].vout_max = pmbus_receive16(pmdev); | |
1177 | } else { | |
1178 | goto passthrough; | |
1179 | } | |
1180 | break; | |
1181 | ||
1182 | case PMBUS_VOUT_MARGIN_HIGH: /* R/W word */ | |
1183 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) { | |
1184 | pmdev->pages[index].vout_margin_high = pmbus_receive16(pmdev); | |
1185 | } else { | |
1186 | goto passthrough; | |
1187 | } | |
1188 | break; | |
1189 | ||
1190 | case PMBUS_VOUT_MARGIN_LOW: /* R/W word */ | |
1191 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) { | |
1192 | pmdev->pages[index].vout_margin_low = pmbus_receive16(pmdev); | |
1193 | } else { | |
1194 | goto passthrough; | |
1195 | } | |
1196 | break; | |
1197 | ||
1198 | case PMBUS_VOUT_TRANSITION_RATE: /* R/W word */ | |
1199 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1200 | pmdev->pages[index].vout_transition_rate = pmbus_receive16(pmdev); | |
1201 | } else { | |
1202 | goto passthrough; | |
1203 | } | |
1204 | break; | |
1205 | ||
1206 | case PMBUS_VOUT_DROOP: /* R/W word */ | |
1207 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1208 | pmdev->pages[index].vout_droop = pmbus_receive16(pmdev); | |
1209 | } else { | |
1210 | goto passthrough; | |
1211 | } | |
1212 | break; | |
1213 | ||
1214 | case PMBUS_VOUT_SCALE_LOOP: /* R/W word */ | |
1215 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1216 | pmdev->pages[index].vout_scale_loop = pmbus_receive16(pmdev); | |
1217 | } else { | |
1218 | goto passthrough; | |
1219 | } | |
1220 | break; | |
1221 | ||
1222 | case PMBUS_VOUT_SCALE_MONITOR: /* R/W word */ | |
1223 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1224 | pmdev->pages[index].vout_scale_monitor = pmbus_receive16(pmdev); | |
1225 | } else { | |
1226 | goto passthrough; | |
1227 | } | |
1228 | break; | |
1229 | ||
32480293 TR |
1230 | case PMBUS_VOUT_MIN: /* R/W word */ |
1231 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { | |
1232 | pmdev->pages[index].vout_min = pmbus_receive16(pmdev); | |
1233 | } else { | |
1234 | goto passthrough; | |
1235 | } | |
1236 | break; | |
1237 | ||
3746d5c1 TR |
1238 | case PMBUS_POUT_MAX: /* R/W word */ |
1239 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1240 | pmdev->pages[index].pout_max = pmbus_receive16(pmdev); | |
1241 | } else { | |
1242 | goto passthrough; | |
1243 | } | |
1244 | break; | |
1245 | ||
1246 | case PMBUS_VIN_ON: /* R/W word */ | |
1247 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1248 | pmdev->pages[index].vin_on = pmbus_receive16(pmdev); | |
1249 | } else { | |
1250 | goto passthrough; | |
1251 | } | |
1252 | break; | |
1253 | ||
1254 | case PMBUS_VIN_OFF: /* R/W word */ | |
1255 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1256 | pmdev->pages[index].vin_off = pmbus_receive16(pmdev); | |
1257 | } else { | |
1258 | goto passthrough; | |
1259 | } | |
1260 | break; | |
1261 | ||
1262 | case PMBUS_IOUT_CAL_GAIN: /* R/W word */ | |
1263 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT_GAIN) { | |
1264 | pmdev->pages[index].iout_cal_gain = pmbus_receive16(pmdev); | |
1265 | } else { | |
1266 | goto passthrough; | |
1267 | } | |
1268 | break; | |
1269 | ||
1270 | case PMBUS_VOUT_OV_FAULT_LIMIT: /* R/W word */ | |
1271 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1272 | pmdev->pages[index].vout_ov_fault_limit = pmbus_receive16(pmdev); | |
1273 | } else { | |
1274 | goto passthrough; | |
1275 | } | |
1276 | break; | |
1277 | ||
1278 | case PMBUS_VOUT_OV_FAULT_RESPONSE: /* R/W byte */ | |
1279 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1280 | pmdev->pages[index].vout_ov_fault_response = pmbus_receive8(pmdev); | |
1281 | } else { | |
1282 | goto passthrough; | |
1283 | } | |
1284 | break; | |
1285 | ||
1286 | case PMBUS_VOUT_OV_WARN_LIMIT: /* R/W word */ | |
1287 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1288 | pmdev->pages[index].vout_ov_warn_limit = pmbus_receive16(pmdev); | |
1289 | } else { | |
1290 | goto passthrough; | |
1291 | } | |
1292 | break; | |
1293 | ||
1294 | case PMBUS_VOUT_UV_WARN_LIMIT: /* R/W word */ | |
1295 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1296 | pmdev->pages[index].vout_uv_warn_limit = pmbus_receive16(pmdev); | |
1297 | } else { | |
1298 | goto passthrough; | |
1299 | } | |
1300 | break; | |
1301 | ||
1302 | case PMBUS_VOUT_UV_FAULT_LIMIT: /* R/W word */ | |
1303 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1304 | pmdev->pages[index].vout_uv_fault_limit = pmbus_receive16(pmdev); | |
1305 | } else { | |
1306 | goto passthrough; | |
1307 | } | |
1308 | break; | |
1309 | ||
1310 | case PMBUS_VOUT_UV_FAULT_RESPONSE: /* R/W byte */ | |
1311 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1312 | pmdev->pages[index].vout_uv_fault_response = pmbus_receive8(pmdev); | |
1313 | } else { | |
1314 | goto passthrough; | |
1315 | } | |
1316 | break; | |
1317 | ||
1318 | case PMBUS_IOUT_OC_FAULT_LIMIT: /* R/W word */ | |
1319 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1320 | pmdev->pages[index].iout_oc_fault_limit = pmbus_receive16(pmdev); | |
1321 | } else { | |
1322 | goto passthrough; | |
1323 | } | |
1324 | break; | |
1325 | ||
1326 | case PMBUS_IOUT_OC_FAULT_RESPONSE: /* R/W byte */ | |
1327 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1328 | pmdev->pages[index].iout_oc_fault_response = pmbus_receive8(pmdev); | |
1329 | } else { | |
1330 | goto passthrough; | |
1331 | } | |
1332 | break; | |
1333 | ||
1334 | case PMBUS_IOUT_OC_LV_FAULT_LIMIT: /* R/W word */ | |
1335 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1336 | pmdev->pages[index].iout_oc_lv_fault_limit = pmbus_receive16(pmdev); | |
1337 | } else { | |
1338 | goto passthrough; | |
1339 | } | |
1340 | break; | |
1341 | ||
1342 | case PMBUS_IOUT_OC_LV_FAULT_RESPONSE: /* R/W byte */ | |
1343 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1344 | pmdev->pages[index].iout_oc_lv_fault_response | |
1345 | = pmbus_receive8(pmdev); | |
1346 | } else { | |
1347 | goto passthrough; | |
1348 | } | |
1349 | break; | |
1350 | ||
1351 | case PMBUS_IOUT_OC_WARN_LIMIT: /* R/W word */ | |
1352 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1353 | pmdev->pages[index].iout_oc_warn_limit = pmbus_receive16(pmdev); | |
1354 | } else { | |
1355 | goto passthrough; | |
1356 | } | |
1357 | break; | |
1358 | ||
1359 | case PMBUS_IOUT_UC_FAULT_LIMIT: /* R/W word */ | |
1360 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1361 | pmdev->pages[index].iout_uc_fault_limit = pmbus_receive16(pmdev); | |
1362 | } else { | |
1363 | goto passthrough; | |
1364 | } | |
1365 | break; | |
1366 | ||
1367 | case PMBUS_IOUT_UC_FAULT_RESPONSE: /* R/W byte */ | |
1368 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1369 | pmdev->pages[index].iout_uc_fault_response = pmbus_receive8(pmdev); | |
1370 | } else { | |
1371 | goto passthrough; | |
1372 | } | |
1373 | break; | |
1374 | ||
1375 | case PMBUS_OT_FAULT_LIMIT: /* R/W word */ | |
1376 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1377 | pmdev->pages[index].ot_fault_limit = pmbus_receive16(pmdev); | |
1378 | } else { | |
1379 | goto passthrough; | |
1380 | } | |
1381 | break; | |
1382 | ||
1383 | case PMBUS_OT_FAULT_RESPONSE: /* R/W byte */ | |
1384 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1385 | pmdev->pages[index].ot_fault_response = pmbus_receive8(pmdev); | |
1386 | } else { | |
1387 | goto passthrough; | |
1388 | } | |
1389 | break; | |
1390 | ||
1391 | case PMBUS_OT_WARN_LIMIT: /* R/W word */ | |
1392 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1393 | pmdev->pages[index].ot_warn_limit = pmbus_receive16(pmdev); | |
1394 | } else { | |
1395 | goto passthrough; | |
1396 | } | |
1397 | break; | |
1398 | ||
1399 | case PMBUS_UT_WARN_LIMIT: /* R/W word */ | |
1400 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1401 | pmdev->pages[index].ut_warn_limit = pmbus_receive16(pmdev); | |
1402 | } else { | |
1403 | goto passthrough; | |
1404 | } | |
1405 | break; | |
1406 | ||
1407 | case PMBUS_UT_FAULT_LIMIT: /* R/W word */ | |
1408 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1409 | pmdev->pages[index].ut_fault_limit = pmbus_receive16(pmdev); | |
1410 | } else { | |
1411 | goto passthrough; | |
1412 | } | |
1413 | break; | |
1414 | ||
1415 | case PMBUS_UT_FAULT_RESPONSE: /* R/W byte */ | |
1416 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1417 | pmdev->pages[index].ut_fault_response = pmbus_receive8(pmdev); | |
1418 | } else { | |
1419 | goto passthrough; | |
1420 | } | |
1421 | break; | |
1422 | ||
1423 | case PMBUS_VIN_OV_FAULT_LIMIT: /* R/W word */ | |
1424 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1425 | pmdev->pages[index].vin_ov_fault_limit = pmbus_receive16(pmdev); | |
1426 | } else { | |
1427 | goto passthrough; | |
1428 | } | |
1429 | break; | |
1430 | ||
1431 | case PMBUS_VIN_OV_FAULT_RESPONSE: /* R/W byte */ | |
1432 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1433 | pmdev->pages[index].vin_ov_fault_response = pmbus_receive8(pmdev); | |
1434 | } else { | |
1435 | goto passthrough; | |
1436 | } | |
1437 | break; | |
1438 | ||
1439 | case PMBUS_VIN_OV_WARN_LIMIT: /* R/W word */ | |
1440 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1441 | pmdev->pages[index].vin_ov_warn_limit = pmbus_receive16(pmdev); | |
1442 | } else { | |
1443 | goto passthrough; | |
1444 | } | |
1445 | break; | |
1446 | ||
1447 | case PMBUS_VIN_UV_WARN_LIMIT: /* R/W word */ | |
1448 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1449 | pmdev->pages[index].vin_uv_warn_limit = pmbus_receive16(pmdev); | |
1450 | } else { | |
1451 | goto passthrough; | |
1452 | } | |
1453 | break; | |
1454 | ||
1455 | case PMBUS_VIN_UV_FAULT_LIMIT: /* R/W word */ | |
1456 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1457 | pmdev->pages[index].vin_uv_fault_limit = pmbus_receive16(pmdev); | |
1458 | } else { | |
1459 | goto passthrough; | |
1460 | } | |
1461 | break; | |
1462 | ||
1463 | case PMBUS_VIN_UV_FAULT_RESPONSE: /* R/W byte */ | |
1464 | if (pmdev->pages[index].page_flags & PB_HAS_VIN) { | |
1465 | pmdev->pages[index].vin_uv_fault_response = pmbus_receive8(pmdev); | |
1466 | } else { | |
1467 | goto passthrough; | |
1468 | } | |
1469 | break; | |
1470 | ||
1471 | case PMBUS_IIN_OC_FAULT_LIMIT: /* R/W word */ | |
1472 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
1473 | pmdev->pages[index].iin_oc_fault_limit = pmbus_receive16(pmdev); | |
1474 | } else { | |
1475 | goto passthrough; | |
1476 | } | |
1477 | break; | |
1478 | ||
1479 | case PMBUS_IIN_OC_FAULT_RESPONSE: /* R/W byte */ | |
1480 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
1481 | pmdev->pages[index].iin_oc_fault_response = pmbus_receive8(pmdev); | |
1482 | } else { | |
1483 | goto passthrough; | |
1484 | } | |
1485 | break; | |
1486 | ||
1487 | case PMBUS_IIN_OC_WARN_LIMIT: /* R/W word */ | |
1488 | if (pmdev->pages[index].page_flags & PB_HAS_IIN) { | |
1489 | pmdev->pages[index].iin_oc_warn_limit = pmbus_receive16(pmdev); | |
1490 | } else { | |
1491 | goto passthrough; | |
1492 | } | |
1493 | break; | |
1494 | ||
1495 | case PMBUS_POUT_OP_FAULT_LIMIT: /* R/W word */ | |
1496 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1497 | pmdev->pages[index].pout_op_fault_limit = pmbus_receive16(pmdev); | |
1498 | } else { | |
1499 | goto passthrough; | |
1500 | } | |
1501 | break; | |
1502 | ||
1503 | case PMBUS_POUT_OP_FAULT_RESPONSE: /* R/W byte */ | |
1504 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1505 | pmdev->pages[index].pout_op_fault_response = pmbus_receive8(pmdev); | |
1506 | } else { | |
1507 | goto passthrough; | |
1508 | } | |
1509 | break; | |
1510 | ||
1511 | case PMBUS_POUT_OP_WARN_LIMIT: /* R/W word */ | |
1512 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1513 | pmdev->pages[index].pout_op_warn_limit = pmbus_receive16(pmdev); | |
1514 | } else { | |
1515 | goto passthrough; | |
1516 | } | |
1517 | break; | |
1518 | ||
1519 | case PMBUS_PIN_OP_WARN_LIMIT: /* R/W word */ | |
1520 | if (pmdev->pages[index].page_flags & PB_HAS_PIN) { | |
1521 | pmdev->pages[index].pin_op_warn_limit = pmbus_receive16(pmdev); | |
1522 | } else { | |
1523 | goto passthrough; | |
1524 | } | |
1525 | break; | |
1526 | ||
1527 | case PMBUS_STATUS_BYTE: /* R/W byte */ | |
1528 | pmdev->pages[index].status_word = pmbus_receive8(pmdev); | |
1529 | break; | |
1530 | ||
1531 | case PMBUS_STATUS_WORD: /* R/W word */ | |
1532 | pmdev->pages[index].status_word = pmbus_receive16(pmdev); | |
1533 | break; | |
1534 | ||
1535 | case PMBUS_STATUS_VOUT: /* R/W byte */ | |
1536 | if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { | |
1537 | pmdev->pages[index].status_vout = pmbus_receive8(pmdev); | |
1538 | } else { | |
1539 | goto passthrough; | |
1540 | } | |
1541 | break; | |
1542 | ||
1543 | case PMBUS_STATUS_IOUT: /* R/W byte */ | |
1544 | if (pmdev->pages[index].page_flags & PB_HAS_IOUT) { | |
1545 | pmdev->pages[index].status_iout = pmbus_receive8(pmdev); | |
1546 | } else { | |
1547 | goto passthrough; | |
1548 | } | |
1549 | break; | |
1550 | ||
1551 | case PMBUS_STATUS_INPUT: /* R/W byte */ | |
1552 | pmdev->pages[index].status_input = pmbus_receive8(pmdev); | |
1553 | break; | |
1554 | ||
1555 | case PMBUS_STATUS_TEMPERATURE: /* R/W byte */ | |
1556 | if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) { | |
1557 | pmdev->pages[index].status_temperature = pmbus_receive8(pmdev); | |
1558 | } else { | |
1559 | goto passthrough; | |
1560 | } | |
1561 | break; | |
1562 | ||
1563 | case PMBUS_STATUS_CML: /* R/W byte */ | |
1564 | pmdev->pages[index].status_cml = pmbus_receive8(pmdev); | |
1565 | break; | |
1566 | ||
1567 | case PMBUS_STATUS_OTHER: /* R/W byte */ | |
1568 | pmdev->pages[index].status_other = pmbus_receive8(pmdev); | |
1569 | break; | |
1570 | ||
32480293 TR |
1571 | case PMBUS_STATUS_MFR_SPECIFIC: /* R/W byte */ |
1572 | pmdev->pages[index].status_mfr_specific = pmbus_receive8(pmdev); | |
1573 | break; | |
1574 | ||
3746d5c1 TR |
1575 | case PMBUS_PAGE_PLUS_READ: /* Block Read-only */ |
1576 | case PMBUS_CAPABILITY: /* Read-Only byte */ | |
1577 | case PMBUS_COEFFICIENTS: /* Read-only block 5 bytes */ | |
1578 | case PMBUS_READ_EIN: /* Read-Only block 5 bytes */ | |
1579 | case PMBUS_READ_EOUT: /* Read-Only block 5 bytes */ | |
1580 | case PMBUS_READ_VIN: /* Read-Only word */ | |
1581 | case PMBUS_READ_IIN: /* Read-Only word */ | |
1582 | case PMBUS_READ_VCAP: /* Read-Only word */ | |
1583 | case PMBUS_READ_VOUT: /* Read-Only word */ | |
1584 | case PMBUS_READ_IOUT: /* Read-Only word */ | |
1585 | case PMBUS_READ_TEMPERATURE_1: /* Read-Only word */ | |
1586 | case PMBUS_READ_TEMPERATURE_2: /* Read-Only word */ | |
1587 | case PMBUS_READ_TEMPERATURE_3: /* Read-Only word */ | |
1588 | case PMBUS_READ_FAN_SPEED_1: /* Read-Only word */ | |
1589 | case PMBUS_READ_FAN_SPEED_2: /* Read-Only word */ | |
1590 | case PMBUS_READ_FAN_SPEED_3: /* Read-Only word */ | |
1591 | case PMBUS_READ_FAN_SPEED_4: /* Read-Only word */ | |
1592 | case PMBUS_READ_DUTY_CYCLE: /* Read-Only word */ | |
1593 | case PMBUS_READ_FREQUENCY: /* Read-Only word */ | |
1594 | case PMBUS_READ_POUT: /* Read-Only word */ | |
1595 | case PMBUS_READ_PIN: /* Read-Only word */ | |
1596 | case PMBUS_REVISION: /* Read-Only byte */ | |
1597 | case PMBUS_APP_PROFILE_SUPPORT: /* Read-Only block-read */ | |
1598 | case PMBUS_MFR_VIN_MIN: /* Read-Only word */ | |
1599 | case PMBUS_MFR_VIN_MAX: /* Read-Only word */ | |
1600 | case PMBUS_MFR_IIN_MAX: /* Read-Only word */ | |
1601 | case PMBUS_MFR_PIN_MAX: /* Read-Only word */ | |
1602 | case PMBUS_MFR_VOUT_MIN: /* Read-Only word */ | |
1603 | case PMBUS_MFR_VOUT_MAX: /* Read-Only word */ | |
1604 | case PMBUS_MFR_IOUT_MAX: /* Read-Only word */ | |
1605 | case PMBUS_MFR_POUT_MAX: /* Read-Only word */ | |
1606 | case PMBUS_MFR_TAMBIENT_MAX: /* Read-Only word */ | |
1607 | case PMBUS_MFR_TAMBIENT_MIN: /* Read-Only word */ | |
1608 | case PMBUS_MFR_EFFICIENCY_LL: /* Read-Only block 14 bytes */ | |
1609 | case PMBUS_MFR_EFFICIENCY_HL: /* Read-Only block 14 bytes */ | |
1610 | case PMBUS_MFR_PIN_ACCURACY: /* Read-Only byte */ | |
1611 | case PMBUS_IC_DEVICE_ID: /* Read-Only block-read */ | |
1612 | case PMBUS_IC_DEVICE_REV: /* Read-Only block-read */ | |
1613 | qemu_log_mask(LOG_GUEST_ERROR, | |
1614 | "%s: writing to read-only register 0x%02x\n", | |
1615 | __func__, pmdev->code); | |
1616 | break; | |
1617 | ||
1618 | passthrough: | |
1619 | /* Unimplimented registers get passed to the device */ | |
1620 | default: | |
1621 | if (pmdc->write_data) { | |
1622 | ret = pmdc->write_data(pmdev, buf, len); | |
1623 | } | |
1624 | break; | |
1625 | } | |
1626 | pmbus_check_limits(pmdev); | |
1627 | pmdev->in_buf_len = 0; | |
1628 | return ret; | |
1629 | } | |
1630 | ||
1631 | int pmbus_page_config(PMBusDevice *pmdev, uint8_t index, uint64_t flags) | |
1632 | { | |
1633 | if (!pmdev->pages) { /* allocate memory for pages on first use */ | |
1634 | pmbus_pages_alloc(pmdev); | |
1635 | } | |
1636 | ||
1637 | /* The 0xFF page is special for commands applying to all pages */ | |
1638 | if (index == PB_ALL_PAGES) { | |
1639 | for (int i = 0; i < pmdev->num_pages; i++) { | |
1640 | pmdev->pages[i].page_flags = flags; | |
1641 | } | |
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | if (index > pmdev->num_pages - 1) { | |
1646 | qemu_log_mask(LOG_GUEST_ERROR, | |
1647 | "%s: index %u is out of range\n", | |
1648 | __func__, index); | |
1649 | return -1; | |
1650 | } | |
1651 | ||
1652 | pmdev->pages[index].page_flags = flags; | |
1653 | ||
1654 | return 0; | |
1655 | } | |
1656 | ||
1657 | /* TODO: include pmbus page info in vmstate */ | |
1658 | const VMStateDescription vmstate_pmbus_device = { | |
1659 | .name = TYPE_PMBUS_DEVICE, | |
1660 | .version_id = 0, | |
1661 | .minimum_version_id = 0, | |
1662 | .fields = (VMStateField[]) { | |
1663 | VMSTATE_SMBUS_DEVICE(smb, PMBusDevice), | |
1664 | VMSTATE_UINT8(num_pages, PMBusDevice), | |
1665 | VMSTATE_UINT8(code, PMBusDevice), | |
1666 | VMSTATE_UINT8(page, PMBusDevice), | |
1667 | VMSTATE_UINT8(capability, PMBusDevice), | |
1668 | VMSTATE_END_OF_LIST() | |
1669 | } | |
1670 | }; | |
1671 | ||
1672 | static void pmbus_device_finalize(Object *obj) | |
1673 | { | |
1674 | PMBusDevice *pmdev = PMBUS_DEVICE(obj); | |
1675 | g_free(pmdev->pages); | |
1676 | } | |
1677 | ||
1678 | static void pmbus_device_class_init(ObjectClass *klass, void *data) | |
1679 | { | |
1680 | SMBusDeviceClass *k = SMBUS_DEVICE_CLASS(klass); | |
1681 | ||
1682 | k->quick_cmd = pmbus_quick_cmd; | |
1683 | k->write_data = pmbus_write_data; | |
1684 | k->receive_byte = pmbus_receive_byte; | |
1685 | } | |
1686 | ||
1687 | static const TypeInfo pmbus_device_type_info = { | |
1688 | .name = TYPE_PMBUS_DEVICE, | |
1689 | .parent = TYPE_SMBUS_DEVICE, | |
1690 | .instance_size = sizeof(PMBusDevice), | |
1691 | .instance_finalize = pmbus_device_finalize, | |
1692 | .abstract = true, | |
1693 | .class_size = sizeof(PMBusDeviceClass), | |
1694 | .class_init = pmbus_device_class_init, | |
1695 | }; | |
1696 | ||
1697 | static void pmbus_device_register_types(void) | |
1698 | { | |
1699 | type_register_static(&pmbus_device_type_info); | |
1700 | } | |
1701 | ||
1702 | type_init(pmbus_device_register_types) |