1 /*
2 * PMBus device for Renesas Digital Multiphase Voltage Regulators
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 "hw/sensor/isl_pmbus_vr.h"
11 #include "hw/qdev-properties.h"
12 #include "qapi/visitor.h"
13 #include "qemu/log.h"
14 #include "qemu/module.h"
15
isl_pmbus_vr_read_byte(PMBusDevice * pmdev)16 static uint8_t isl_pmbus_vr_read_byte(PMBusDevice *pmdev)
17 {
18 ISLState *s = ISL69260(pmdev);
19
20 switch (pmdev->code) {
21 case PMBUS_IC_DEVICE_ID:
22 if (!s->ic_device_id_len) {
23 break;
24 }
25 pmbus_send(pmdev, s->ic_device_id, s->ic_device_id_len);
26 pmbus_idle(pmdev);
27 return 0;
28 }
29
30 qemu_log_mask(LOG_GUEST_ERROR,
31 "%s: reading from unsupported register: 0x%02x\n",
32 __func__, pmdev->code);
33 return PMBUS_ERR_BYTE;
34 }
35
isl_pmbus_vr_write_data(PMBusDevice * pmdev,const uint8_t * buf,uint8_t len)36 static int isl_pmbus_vr_write_data(PMBusDevice *pmdev, const uint8_t *buf,
37 uint8_t len)
38 {
39 qemu_log_mask(LOG_GUEST_ERROR,
40 "%s: write to unsupported register: 0x%02x\n",
41 __func__, pmdev->code);
42 return PMBUS_ERR_BYTE;
43 }
44
45 /* TODO: Implement coefficients support in pmbus_device.c for qmp */
isl_pmbus_vr_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)46 static void isl_pmbus_vr_get(Object *obj, Visitor *v, const char *name,
47 void *opaque, Error **errp)
48 {
49 visit_type_uint16(v, name, (uint16_t *)opaque, errp);
50 }
51
isl_pmbus_vr_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)52 static void isl_pmbus_vr_set(Object *obj, Visitor *v, const char *name,
53 void *opaque, Error **errp)
54 {
55 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
56 uint16_t *internal = opaque;
57 uint16_t value;
58 if (!visit_type_uint16(v, name, &value, errp)) {
59 return;
60 }
61
62 *internal = value;
63 pmbus_check_limits(pmdev);
64 }
65
isl_pmbus_vr_exit_reset(Object * obj,ResetType type)66 static void isl_pmbus_vr_exit_reset(Object *obj, ResetType type)
67 {
68 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
69
70 pmdev->page = 0;
71 pmdev->capability = ISL_CAPABILITY_DEFAULT;
72 for (int i = 0; i < pmdev->num_pages; i++) {
73 pmdev->pages[i].operation = ISL_OPERATION_DEFAULT;
74 pmdev->pages[i].on_off_config = ISL_ON_OFF_CONFIG_DEFAULT;
75 pmdev->pages[i].vout_mode = ISL_VOUT_MODE_DEFAULT;
76 pmdev->pages[i].vout_command = ISL_VOUT_COMMAND_DEFAULT;
77 pmdev->pages[i].vout_max = ISL_VOUT_MAX_DEFAULT;
78 pmdev->pages[i].vout_margin_high = ISL_VOUT_MARGIN_HIGH_DEFAULT;
79 pmdev->pages[i].vout_margin_low = ISL_VOUT_MARGIN_LOW_DEFAULT;
80 pmdev->pages[i].vout_transition_rate = ISL_VOUT_TRANSITION_RATE_DEFAULT;
81 pmdev->pages[i].vout_ov_fault_limit = ISL_VOUT_OV_FAULT_LIMIT_DEFAULT;
82 pmdev->pages[i].ot_fault_limit = ISL_OT_FAULT_LIMIT_DEFAULT;
83 pmdev->pages[i].ot_warn_limit = ISL_OT_WARN_LIMIT_DEFAULT;
84 pmdev->pages[i].vin_ov_warn_limit = ISL_VIN_OV_WARN_LIMIT_DEFAULT;
85 pmdev->pages[i].vin_uv_warn_limit = ISL_VIN_UV_WARN_LIMIT_DEFAULT;
86 pmdev->pages[i].iin_oc_fault_limit = ISL_IIN_OC_FAULT_LIMIT_DEFAULT;
87 pmdev->pages[i].ton_delay = ISL_TON_DELAY_DEFAULT;
88 pmdev->pages[i].ton_rise = ISL_TON_RISE_DEFAULT;
89 pmdev->pages[i].toff_fall = ISL_TOFF_FALL_DEFAULT;
90 pmdev->pages[i].revision = ISL_REVISION_DEFAULT;
91
92 pmdev->pages[i].read_vout = ISL_READ_VOUT_DEFAULT;
93 pmdev->pages[i].read_iout = ISL_READ_IOUT_DEFAULT;
94 pmdev->pages[i].read_pout = ISL_READ_POUT_DEFAULT;
95 pmdev->pages[i].read_vin = ISL_READ_VIN_DEFAULT;
96 pmdev->pages[i].read_iin = ISL_READ_IIN_DEFAULT;
97 pmdev->pages[i].read_pin = ISL_READ_PIN_DEFAULT;
98 pmdev->pages[i].read_temperature_1 = ISL_READ_TEMP_DEFAULT;
99 pmdev->pages[i].read_temperature_2 = ISL_READ_TEMP_DEFAULT;
100 pmdev->pages[i].read_temperature_3 = ISL_READ_TEMP_DEFAULT;
101 }
102 }
103
104 /* The raa228000 uses different direct mode coefficients from most isl devices */
raa228000_exit_reset(Object * obj,ResetType type)105 static void raa228000_exit_reset(Object *obj, ResetType type)
106 {
107 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
108
109 isl_pmbus_vr_exit_reset(obj, type);
110
111 pmdev->pages[0].read_iout = 0;
112 pmdev->pages[0].read_pout = 0;
113 pmdev->pages[0].read_vout = 0;
114 pmdev->pages[0].read_vin = 0;
115 pmdev->pages[0].read_iin = 0;
116 pmdev->pages[0].read_pin = 0;
117 pmdev->pages[0].read_temperature_1 = 0;
118 pmdev->pages[0].read_temperature_2 = 0;
119 pmdev->pages[0].read_temperature_3 = 0;
120 }
121
isl69259_exit_reset(Object * obj,ResetType type)122 static void isl69259_exit_reset(Object *obj, ResetType type)
123 {
124 ISLState *s = ISL69260(obj);
125 static const uint8_t ic_device_id[] = {0x04, 0x00, 0x81, 0xD2, 0x49, 0x3c};
126 g_assert(sizeof(ic_device_id) <= sizeof(s->ic_device_id));
127
128 isl_pmbus_vr_exit_reset(obj, type);
129
130 s->ic_device_id_len = sizeof(ic_device_id);
131 memcpy(s->ic_device_id, ic_device_id, sizeof(ic_device_id));
132 }
133
isl_pmbus_vr_add_props(Object * obj,uint64_t * flags,uint8_t pages)134 static void isl_pmbus_vr_add_props(Object *obj, uint64_t *flags, uint8_t pages)
135 {
136 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
137 for (int i = 0; i < pages; i++) {
138 if (flags[i] & PB_HAS_VIN) {
139 object_property_add(obj, "vin[*]", "uint16",
140 isl_pmbus_vr_get,
141 isl_pmbus_vr_set,
142 NULL, &pmdev->pages[i].read_vin);
143 }
144
145 if (flags[i] & PB_HAS_VOUT) {
146 object_property_add(obj, "vout[*]", "uint16",
147 isl_pmbus_vr_get,
148 isl_pmbus_vr_set,
149 NULL, &pmdev->pages[i].read_vout);
150 }
151
152 if (flags[i] & PB_HAS_IIN) {
153 object_property_add(obj, "iin[*]", "uint16",
154 isl_pmbus_vr_get,
155 isl_pmbus_vr_set,
156 NULL, &pmdev->pages[i].read_iin);
157 }
158
159 if (flags[i] & PB_HAS_IOUT) {
160 object_property_add(obj, "iout[*]", "uint16",
161 isl_pmbus_vr_get,
162 isl_pmbus_vr_set,
163 NULL, &pmdev->pages[i].read_iout);
164 }
165
166 if (flags[i] & PB_HAS_PIN) {
167 object_property_add(obj, "pin[*]", "uint16",
168 isl_pmbus_vr_get,
169 isl_pmbus_vr_set,
170 NULL, &pmdev->pages[i].read_pin);
171 }
172
173 if (flags[i] & PB_HAS_POUT) {
174 object_property_add(obj, "pout[*]", "uint16",
175 isl_pmbus_vr_get,
176 isl_pmbus_vr_set,
177 NULL, &pmdev->pages[i].read_pout);
178 }
179
180 if (flags[i] & PB_HAS_TEMPERATURE) {
181 object_property_add(obj, "temp1[*]", "uint16",
182 isl_pmbus_vr_get,
183 isl_pmbus_vr_set,
184 NULL, &pmdev->pages[i].read_temperature_1);
185 }
186
187 if (flags[i] & PB_HAS_TEMP2) {
188 object_property_add(obj, "temp2[*]", "uint16",
189 isl_pmbus_vr_get,
190 isl_pmbus_vr_set,
191 NULL, &pmdev->pages[i].read_temperature_2);
192 }
193
194 if (flags[i] & PB_HAS_TEMP3) {
195 object_property_add(obj, "temp3[*]", "uint16",
196 isl_pmbus_vr_get,
197 isl_pmbus_vr_set,
198 NULL, &pmdev->pages[i].read_temperature_3);
199 }
200 }
201 }
202
raa22xx_init(Object * obj)203 static void raa22xx_init(Object *obj)
204 {
205 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
206 uint64_t flags[2];
207
208 flags[0] = PB_HAS_VIN | PB_HAS_VOUT | PB_HAS_VOUT_MODE |
209 PB_HAS_VOUT_RATING | PB_HAS_VOUT_MARGIN | PB_HAS_IIN |
210 PB_HAS_IOUT | PB_HAS_PIN | PB_HAS_POUT | PB_HAS_TEMPERATURE |
211 PB_HAS_TEMP2 | PB_HAS_TEMP3 | PB_HAS_STATUS_MFR_SPECIFIC;
212 flags[1] = PB_HAS_IIN | PB_HAS_PIN | PB_HAS_TEMPERATURE | PB_HAS_TEMP3 |
213 PB_HAS_VOUT | PB_HAS_VOUT_MODE | PB_HAS_VOUT_MARGIN |
214 PB_HAS_VOUT_RATING | PB_HAS_IOUT | PB_HAS_POUT |
215 PB_HAS_STATUS_MFR_SPECIFIC;
216
217 pmbus_page_config(pmdev, 0, flags[0]);
218 pmbus_page_config(pmdev, 1, flags[1]);
219 isl_pmbus_vr_add_props(obj, flags, ARRAY_SIZE(flags));
220 }
221
raa228000_init(Object * obj)222 static void raa228000_init(Object *obj)
223 {
224 PMBusDevice *pmdev = PMBUS_DEVICE(obj);
225 uint64_t flags[1];
226
227 flags[0] = PB_HAS_VIN | PB_HAS_VOUT | PB_HAS_VOUT_MODE |
228 PB_HAS_VOUT_RATING | PB_HAS_VOUT_MARGIN | PB_HAS_IIN |
229 PB_HAS_IOUT | PB_HAS_PIN | PB_HAS_POUT | PB_HAS_TEMPERATURE |
230 PB_HAS_TEMP2 | PB_HAS_TEMP3 | PB_HAS_STATUS_MFR_SPECIFIC;
231
232 pmbus_page_config(pmdev, 0, flags[0]);
233 isl_pmbus_vr_add_props(obj, flags, 1);
234 }
235
isl_pmbus_vr_class_init(ObjectClass * klass,void * data,uint8_t pages)236 static void isl_pmbus_vr_class_init(ObjectClass *klass, void *data,
237 uint8_t pages)
238 {
239 PMBusDeviceClass *k = PMBUS_DEVICE_CLASS(klass);
240 k->write_data = isl_pmbus_vr_write_data;
241 k->receive_byte = isl_pmbus_vr_read_byte;
242 k->device_num_pages = pages;
243 }
244
isl69260_class_init(ObjectClass * klass,void * data)245 static void isl69260_class_init(ObjectClass *klass, void *data)
246 {
247 ResettableClass *rc = RESETTABLE_CLASS(klass);
248 DeviceClass *dc = DEVICE_CLASS(klass);
249 dc->desc = "Renesas ISL69260 Digital Multiphase Voltage Regulator";
250 rc->phases.exit = isl_pmbus_vr_exit_reset;
251 isl_pmbus_vr_class_init(klass, data, 2);
252 }
253
raa228000_class_init(ObjectClass * klass,void * data)254 static void raa228000_class_init(ObjectClass *klass, void *data)
255 {
256 ResettableClass *rc = RESETTABLE_CLASS(klass);
257 DeviceClass *dc = DEVICE_CLASS(klass);
258 dc->desc = "Renesas 228000 Digital Multiphase Voltage Regulator";
259 rc->phases.exit = raa228000_exit_reset;
260 isl_pmbus_vr_class_init(klass, data, 1);
261 }
262
raa229004_class_init(ObjectClass * klass,void * data)263 static void raa229004_class_init(ObjectClass *klass, void *data)
264 {
265 ResettableClass *rc = RESETTABLE_CLASS(klass);
266 DeviceClass *dc = DEVICE_CLASS(klass);
267 dc->desc = "Renesas 229004 Digital Multiphase Voltage Regulator";
268 rc->phases.exit = isl_pmbus_vr_exit_reset;
269 isl_pmbus_vr_class_init(klass, data, 2);
270 }
271
isl69259_class_init(ObjectClass * klass,void * data)272 static void isl69259_class_init(ObjectClass *klass, void *data)
273 {
274 ResettableClass *rc = RESETTABLE_CLASS(klass);
275 DeviceClass *dc = DEVICE_CLASS(klass);
276 dc->desc = "Renesas ISL69259 Digital Multiphase Voltage Regulator";
277 rc->phases.exit = isl69259_exit_reset;
278 isl_pmbus_vr_class_init(klass, data, 2);
279 }
280
281 static const TypeInfo isl69259_info = {
282 .name = TYPE_ISL69259,
283 .parent = TYPE_ISL69260,
284 .class_init = isl69259_class_init,
285 };
286
287 static const TypeInfo isl69260_info = {
288 .name = TYPE_ISL69260,
289 .parent = TYPE_PMBUS_DEVICE,
290 .instance_size = sizeof(ISLState),
291 .instance_init = raa22xx_init,
292 .class_init = isl69260_class_init,
293 };
294
295 static const TypeInfo raa229004_info = {
296 .name = TYPE_RAA229004,
297 .parent = TYPE_PMBUS_DEVICE,
298 .instance_size = sizeof(ISLState),
299 .instance_init = raa22xx_init,
300 .class_init = raa229004_class_init,
301 };
302
303 static const TypeInfo raa228000_info = {
304 .name = TYPE_RAA228000,
305 .parent = TYPE_PMBUS_DEVICE,
306 .instance_size = sizeof(ISLState),
307 .instance_init = raa228000_init,
308 .class_init = raa228000_class_init,
309 };
310
isl_pmbus_vr_register_types(void)311 static void isl_pmbus_vr_register_types(void)
312 {
313 type_register_static(&isl69259_info);
314 type_register_static(&isl69260_info);
315 type_register_static(&raa228000_info);
316 type_register_static(&raa229004_info);
317 }
318
319 type_init(isl_pmbus_vr_register_types)
320