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