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 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 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 */ 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 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 66 static void isl_pmbus_vr_exit_reset(Object *obj) 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 */ 105 static void raa228000_exit_reset(Object *obj) 106 { 107 PMBusDevice *pmdev = PMBUS_DEVICE(obj); 108 109 isl_pmbus_vr_exit_reset(obj); 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 } 121 122 static void isl69259_exit_reset(Object *obj) 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); 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 } 133 134 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 } 202 203 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 } 221 222 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 } 235 236 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 } 244 245 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 } 253 254 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 } 262 263 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 } 271 272 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 }; 310 311 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