19d2ecfb7SGuenter Roeck /* 29d2ecfb7SGuenter Roeck * pmbus.h - Common defines and structures for PMBus devices 39d2ecfb7SGuenter Roeck * 49d2ecfb7SGuenter Roeck * Copyright (c) 2010, 2011 Ericsson AB. 59d2ecfb7SGuenter Roeck * 69d2ecfb7SGuenter Roeck * This program is free software; you can redistribute it and/or modify 79d2ecfb7SGuenter Roeck * it under the terms of the GNU General Public License as published by 89d2ecfb7SGuenter Roeck * the Free Software Foundation; either version 2 of the License, or 99d2ecfb7SGuenter Roeck * (at your option) any later version. 109d2ecfb7SGuenter Roeck * 119d2ecfb7SGuenter Roeck * This program is distributed in the hope that it will be useful, 129d2ecfb7SGuenter Roeck * but WITHOUT ANY WARRANTY; without even the implied warranty of 139d2ecfb7SGuenter Roeck * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 149d2ecfb7SGuenter Roeck * GNU General Public License for more details. 159d2ecfb7SGuenter Roeck * 169d2ecfb7SGuenter Roeck * You should have received a copy of the GNU General Public License 179d2ecfb7SGuenter Roeck * along with this program; if not, write to the Free Software 189d2ecfb7SGuenter Roeck * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 199d2ecfb7SGuenter Roeck */ 209d2ecfb7SGuenter Roeck 219d2ecfb7SGuenter Roeck #ifndef PMBUS_H 229d2ecfb7SGuenter Roeck #define PMBUS_H 239d2ecfb7SGuenter Roeck 249d2ecfb7SGuenter Roeck /* 259d2ecfb7SGuenter Roeck * Registers 269d2ecfb7SGuenter Roeck */ 279d2ecfb7SGuenter Roeck #define PMBUS_PAGE 0x00 289d2ecfb7SGuenter Roeck #define PMBUS_OPERATION 0x01 299d2ecfb7SGuenter Roeck #define PMBUS_ON_OFF_CONFIG 0x02 309d2ecfb7SGuenter Roeck #define PMBUS_CLEAR_FAULTS 0x03 319d2ecfb7SGuenter Roeck #define PMBUS_PHASE 0x04 329d2ecfb7SGuenter Roeck 339d2ecfb7SGuenter Roeck #define PMBUS_CAPABILITY 0x19 349d2ecfb7SGuenter Roeck #define PMBUS_QUERY 0x1A 359d2ecfb7SGuenter Roeck 369d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MODE 0x20 379d2ecfb7SGuenter Roeck #define PMBUS_VOUT_COMMAND 0x21 389d2ecfb7SGuenter Roeck #define PMBUS_VOUT_TRIM 0x22 399d2ecfb7SGuenter Roeck #define PMBUS_VOUT_CAL_OFFSET 0x23 409d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MAX 0x24 419d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MARGIN_HIGH 0x25 429d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MARGIN_LOW 0x26 439d2ecfb7SGuenter Roeck #define PMBUS_VOUT_TRANSITION_RATE 0x27 449d2ecfb7SGuenter Roeck #define PMBUS_VOUT_DROOP 0x28 459d2ecfb7SGuenter Roeck #define PMBUS_VOUT_SCALE_LOOP 0x29 469d2ecfb7SGuenter Roeck #define PMBUS_VOUT_SCALE_MONITOR 0x2A 479d2ecfb7SGuenter Roeck 489d2ecfb7SGuenter Roeck #define PMBUS_COEFFICIENTS 0x30 499d2ecfb7SGuenter Roeck #define PMBUS_POUT_MAX 0x31 509d2ecfb7SGuenter Roeck 519d2ecfb7SGuenter Roeck #define PMBUS_FAN_CONFIG_12 0x3A 529d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_1 0x3B 539d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_2 0x3C 549d2ecfb7SGuenter Roeck #define PMBUS_FAN_CONFIG_34 0x3D 559d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_3 0x3E 569d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_4 0x3F 579d2ecfb7SGuenter Roeck 589d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_FAULT_LIMIT 0x40 599d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_FAULT_RESPONSE 0x41 609d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_WARN_LIMIT 0x42 619d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_WARN_LIMIT 0x43 629d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_FAULT_LIMIT 0x44 639d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_FAULT_RESPONSE 0x45 649d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_FAULT_LIMIT 0x46 659d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_FAULT_RESPONSE 0x47 669d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_LV_FAULT_LIMIT 0x48 679d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_LV_FAULT_RESPONSE 0x49 689d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_WARN_LIMIT 0x4A 699d2ecfb7SGuenter Roeck #define PMBUS_IOUT_UC_FAULT_LIMIT 0x4B 709d2ecfb7SGuenter Roeck #define PMBUS_IOUT_UC_FAULT_RESPONSE 0x4C 719d2ecfb7SGuenter Roeck 729d2ecfb7SGuenter Roeck #define PMBUS_OT_FAULT_LIMIT 0x4F 739d2ecfb7SGuenter Roeck #define PMBUS_OT_FAULT_RESPONSE 0x50 749d2ecfb7SGuenter Roeck #define PMBUS_OT_WARN_LIMIT 0x51 759d2ecfb7SGuenter Roeck #define PMBUS_UT_WARN_LIMIT 0x52 769d2ecfb7SGuenter Roeck #define PMBUS_UT_FAULT_LIMIT 0x53 779d2ecfb7SGuenter Roeck #define PMBUS_UT_FAULT_RESPONSE 0x54 789d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_FAULT_LIMIT 0x55 799d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_FAULT_RESPONSE 0x56 809d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_WARN_LIMIT 0x57 819d2ecfb7SGuenter Roeck #define PMBUS_VIN_UV_WARN_LIMIT 0x58 829d2ecfb7SGuenter Roeck #define PMBUS_VIN_UV_FAULT_LIMIT 0x59 839d2ecfb7SGuenter Roeck 849d2ecfb7SGuenter Roeck #define PMBUS_IIN_OC_FAULT_LIMIT 0x5B 859d2ecfb7SGuenter Roeck #define PMBUS_IIN_OC_WARN_LIMIT 0x5D 869d2ecfb7SGuenter Roeck 879d2ecfb7SGuenter Roeck #define PMBUS_POUT_OP_FAULT_LIMIT 0x68 889d2ecfb7SGuenter Roeck #define PMBUS_POUT_OP_WARN_LIMIT 0x6A 899d2ecfb7SGuenter Roeck #define PMBUS_PIN_OP_WARN_LIMIT 0x6B 909d2ecfb7SGuenter Roeck 919d2ecfb7SGuenter Roeck #define PMBUS_STATUS_BYTE 0x78 929d2ecfb7SGuenter Roeck #define PMBUS_STATUS_WORD 0x79 939d2ecfb7SGuenter Roeck #define PMBUS_STATUS_VOUT 0x7A 949d2ecfb7SGuenter Roeck #define PMBUS_STATUS_IOUT 0x7B 959d2ecfb7SGuenter Roeck #define PMBUS_STATUS_INPUT 0x7C 969d2ecfb7SGuenter Roeck #define PMBUS_STATUS_TEMPERATURE 0x7D 979d2ecfb7SGuenter Roeck #define PMBUS_STATUS_CML 0x7E 989d2ecfb7SGuenter Roeck #define PMBUS_STATUS_OTHER 0x7F 999d2ecfb7SGuenter Roeck #define PMBUS_STATUS_MFR_SPECIFIC 0x80 1009d2ecfb7SGuenter Roeck #define PMBUS_STATUS_FAN_12 0x81 1019d2ecfb7SGuenter Roeck #define PMBUS_STATUS_FAN_34 0x82 1029d2ecfb7SGuenter Roeck 1039d2ecfb7SGuenter Roeck #define PMBUS_READ_VIN 0x88 1049d2ecfb7SGuenter Roeck #define PMBUS_READ_IIN 0x89 1059d2ecfb7SGuenter Roeck #define PMBUS_READ_VCAP 0x8A 1069d2ecfb7SGuenter Roeck #define PMBUS_READ_VOUT 0x8B 1079d2ecfb7SGuenter Roeck #define PMBUS_READ_IOUT 0x8C 1089d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_1 0x8D 1099d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_2 0x8E 1109d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_3 0x8F 1119d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_1 0x90 1129d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_2 0x91 1139d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_3 0x92 1149d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_4 0x93 1159d2ecfb7SGuenter Roeck #define PMBUS_READ_DUTY_CYCLE 0x94 1169d2ecfb7SGuenter Roeck #define PMBUS_READ_FREQUENCY 0x95 1179d2ecfb7SGuenter Roeck #define PMBUS_READ_POUT 0x96 1189d2ecfb7SGuenter Roeck #define PMBUS_READ_PIN 0x97 1199d2ecfb7SGuenter Roeck 1209d2ecfb7SGuenter Roeck #define PMBUS_REVISION 0x98 1219d2ecfb7SGuenter Roeck #define PMBUS_MFR_ID 0x99 1229d2ecfb7SGuenter Roeck #define PMBUS_MFR_MODEL 0x9A 1239d2ecfb7SGuenter Roeck #define PMBUS_MFR_REVISION 0x9B 1249d2ecfb7SGuenter Roeck #define PMBUS_MFR_LOCATION 0x9C 1259d2ecfb7SGuenter Roeck #define PMBUS_MFR_DATE 0x9D 1269d2ecfb7SGuenter Roeck #define PMBUS_MFR_SERIAL 0x9E 1279d2ecfb7SGuenter Roeck 1289d2ecfb7SGuenter Roeck /* 1296f183d33SGuenter Roeck * Virtual registers. 1306f183d33SGuenter Roeck * Useful to support attributes which are not supported by standard PMBus 1316f183d33SGuenter Roeck * registers but exist as manufacturer specific registers on individual chips. 1326f183d33SGuenter Roeck * Must be mapped to real registers in device specific code. 1336f183d33SGuenter Roeck * 1346f183d33SGuenter Roeck * Semantics: 1356f183d33SGuenter Roeck * Virtual registers are all word size. 1366f183d33SGuenter Roeck * READ registers are read-only; writes are either ignored or return an error. 1376f183d33SGuenter Roeck * RESET registers are read/write. Reading returns zero (used for detection), 1386f183d33SGuenter Roeck * writing any value causes the associated history to be reset. 1396f183d33SGuenter Roeck */ 1406f183d33SGuenter Roeck #define PMBUS_VIRT_BASE 0x100 1416f183d33SGuenter Roeck #define PMBUS_VIRT_READ_TEMP_MIN (PMBUS_VIRT_BASE + 0) 1426f183d33SGuenter Roeck #define PMBUS_VIRT_READ_TEMP_MAX (PMBUS_VIRT_BASE + 1) 1436f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_TEMP_HISTORY (PMBUS_VIRT_BASE + 2) 1446f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VIN_AVG (PMBUS_VIRT_BASE + 3) 1456f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VIN_MIN (PMBUS_VIRT_BASE + 4) 1466f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VIN_MAX (PMBUS_VIRT_BASE + 5) 1476f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_VIN_HISTORY (PMBUS_VIRT_BASE + 6) 1486f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IIN_AVG (PMBUS_VIRT_BASE + 7) 1496f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IIN_MIN (PMBUS_VIRT_BASE + 8) 1506f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IIN_MAX (PMBUS_VIRT_BASE + 9) 1516f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_IIN_HISTORY (PMBUS_VIRT_BASE + 10) 1526f183d33SGuenter Roeck #define PMBUS_VIRT_READ_PIN_AVG (PMBUS_VIRT_BASE + 11) 1536f183d33SGuenter Roeck #define PMBUS_VIRT_READ_PIN_MAX (PMBUS_VIRT_BASE + 12) 1546f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_PIN_HISTORY (PMBUS_VIRT_BASE + 13) 1556f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_AVG (PMBUS_VIRT_BASE + 14) 1566f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_MIN (PMBUS_VIRT_BASE + 15) 1576f183d33SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_MAX (PMBUS_VIRT_BASE + 16) 1586f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_VOUT_HISTORY (PMBUS_VIRT_BASE + 17) 1596f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_AVG (PMBUS_VIRT_BASE + 18) 1606f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_MIN (PMBUS_VIRT_BASE + 19) 1616f183d33SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_MAX (PMBUS_VIRT_BASE + 20) 1626f183d33SGuenter Roeck #define PMBUS_VIRT_RESET_IOUT_HISTORY (PMBUS_VIRT_BASE + 21) 1636f183d33SGuenter Roeck 1646f183d33SGuenter Roeck /* 1659d2ecfb7SGuenter Roeck * CAPABILITY 1669d2ecfb7SGuenter Roeck */ 1679d2ecfb7SGuenter Roeck #define PB_CAPABILITY_SMBALERT (1<<4) 1689d2ecfb7SGuenter Roeck #define PB_CAPABILITY_ERROR_CHECK (1<<7) 1699d2ecfb7SGuenter Roeck 1709d2ecfb7SGuenter Roeck /* 1719d2ecfb7SGuenter Roeck * VOUT_MODE 1729d2ecfb7SGuenter Roeck */ 1739d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_MODE_MASK 0xe0 1749d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_PARAM_MASK 0x1f 1759d2ecfb7SGuenter Roeck 1769d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_LINEAR 0x00 1779d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_VID 0x20 1789d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_DIRECT 0x40 1799d2ecfb7SGuenter Roeck 1809d2ecfb7SGuenter Roeck /* 1819d2ecfb7SGuenter Roeck * Fan configuration 1829d2ecfb7SGuenter Roeck */ 1839d2ecfb7SGuenter Roeck #define PB_FAN_2_PULSE_MASK ((1 << 0) | (1 << 1)) 1849d2ecfb7SGuenter Roeck #define PB_FAN_2_RPM (1 << 2) 1859d2ecfb7SGuenter Roeck #define PB_FAN_2_INSTALLED (1 << 3) 1869d2ecfb7SGuenter Roeck #define PB_FAN_1_PULSE_MASK ((1 << 4) | (1 << 5)) 1879d2ecfb7SGuenter Roeck #define PB_FAN_1_RPM (1 << 6) 1889d2ecfb7SGuenter Roeck #define PB_FAN_1_INSTALLED (1 << 7) 1899d2ecfb7SGuenter Roeck 1909d2ecfb7SGuenter Roeck /* 1919d2ecfb7SGuenter Roeck * STATUS_BYTE, STATUS_WORD (lower) 1929d2ecfb7SGuenter Roeck */ 1939d2ecfb7SGuenter Roeck #define PB_STATUS_NONE_ABOVE (1<<0) 1949d2ecfb7SGuenter Roeck #define PB_STATUS_CML (1<<1) 1959d2ecfb7SGuenter Roeck #define PB_STATUS_TEMPERATURE (1<<2) 1969d2ecfb7SGuenter Roeck #define PB_STATUS_VIN_UV (1<<3) 1979d2ecfb7SGuenter Roeck #define PB_STATUS_IOUT_OC (1<<4) 1989d2ecfb7SGuenter Roeck #define PB_STATUS_VOUT_OV (1<<5) 1999d2ecfb7SGuenter Roeck #define PB_STATUS_OFF (1<<6) 2009d2ecfb7SGuenter Roeck #define PB_STATUS_BUSY (1<<7) 2019d2ecfb7SGuenter Roeck 2029d2ecfb7SGuenter Roeck /* 2039d2ecfb7SGuenter Roeck * STATUS_WORD (upper) 2049d2ecfb7SGuenter Roeck */ 2059d2ecfb7SGuenter Roeck #define PB_STATUS_UNKNOWN (1<<8) 2069d2ecfb7SGuenter Roeck #define PB_STATUS_OTHER (1<<9) 2079d2ecfb7SGuenter Roeck #define PB_STATUS_FANS (1<<10) 2089d2ecfb7SGuenter Roeck #define PB_STATUS_POWER_GOOD_N (1<<11) 2099d2ecfb7SGuenter Roeck #define PB_STATUS_WORD_MFR (1<<12) 2109d2ecfb7SGuenter Roeck #define PB_STATUS_INPUT (1<<13) 2119d2ecfb7SGuenter Roeck #define PB_STATUS_IOUT_POUT (1<<14) 2129d2ecfb7SGuenter Roeck #define PB_STATUS_VOUT (1<<15) 2139d2ecfb7SGuenter Roeck 2149d2ecfb7SGuenter Roeck /* 2159d2ecfb7SGuenter Roeck * STATUS_IOUT 2169d2ecfb7SGuenter Roeck */ 2179d2ecfb7SGuenter Roeck #define PB_POUT_OP_WARNING (1<<0) 2189d2ecfb7SGuenter Roeck #define PB_POUT_OP_FAULT (1<<1) 2199d2ecfb7SGuenter Roeck #define PB_POWER_LIMITING (1<<2) 2209d2ecfb7SGuenter Roeck #define PB_CURRENT_SHARE_FAULT (1<<3) 2219d2ecfb7SGuenter Roeck #define PB_IOUT_UC_FAULT (1<<4) 2229d2ecfb7SGuenter Roeck #define PB_IOUT_OC_WARNING (1<<5) 2239d2ecfb7SGuenter Roeck #define PB_IOUT_OC_LV_FAULT (1<<6) 2249d2ecfb7SGuenter Roeck #define PB_IOUT_OC_FAULT (1<<7) 2259d2ecfb7SGuenter Roeck 2269d2ecfb7SGuenter Roeck /* 2279d2ecfb7SGuenter Roeck * STATUS_VOUT, STATUS_INPUT 2289d2ecfb7SGuenter Roeck */ 2299d2ecfb7SGuenter Roeck #define PB_VOLTAGE_UV_FAULT (1<<4) 2309d2ecfb7SGuenter Roeck #define PB_VOLTAGE_UV_WARNING (1<<5) 2319d2ecfb7SGuenter Roeck #define PB_VOLTAGE_OV_WARNING (1<<6) 2329d2ecfb7SGuenter Roeck #define PB_VOLTAGE_OV_FAULT (1<<7) 2339d2ecfb7SGuenter Roeck 2349d2ecfb7SGuenter Roeck /* 2359d2ecfb7SGuenter Roeck * STATUS_INPUT 2369d2ecfb7SGuenter Roeck */ 2379d2ecfb7SGuenter Roeck #define PB_PIN_OP_WARNING (1<<0) 2389d2ecfb7SGuenter Roeck #define PB_IIN_OC_WARNING (1<<1) 2399d2ecfb7SGuenter Roeck #define PB_IIN_OC_FAULT (1<<2) 2409d2ecfb7SGuenter Roeck 2419d2ecfb7SGuenter Roeck /* 2429d2ecfb7SGuenter Roeck * STATUS_TEMPERATURE 2439d2ecfb7SGuenter Roeck */ 2449d2ecfb7SGuenter Roeck #define PB_TEMP_UT_FAULT (1<<4) 2459d2ecfb7SGuenter Roeck #define PB_TEMP_UT_WARNING (1<<5) 2469d2ecfb7SGuenter Roeck #define PB_TEMP_OT_WARNING (1<<6) 2479d2ecfb7SGuenter Roeck #define PB_TEMP_OT_FAULT (1<<7) 2489d2ecfb7SGuenter Roeck 2499d2ecfb7SGuenter Roeck /* 2509d2ecfb7SGuenter Roeck * STATUS_FAN 2519d2ecfb7SGuenter Roeck */ 2529d2ecfb7SGuenter Roeck #define PB_FAN_AIRFLOW_WARNING (1<<0) 2539d2ecfb7SGuenter Roeck #define PB_FAN_AIRFLOW_FAULT (1<<1) 2549d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_SPEED_OVERRIDE (1<<2) 2559d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_SPEED_OVERRIDE (1<<3) 2569d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_WARNING (1<<4) 2579d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_WARNING (1<<5) 2589d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_FAULT (1<<6) 2599d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_FAULT (1<<7) 2609d2ecfb7SGuenter Roeck 2619d2ecfb7SGuenter Roeck /* 2629d2ecfb7SGuenter Roeck * CML_FAULT_STATUS 2639d2ecfb7SGuenter Roeck */ 2649d2ecfb7SGuenter Roeck #define PB_CML_FAULT_OTHER_MEM_LOGIC (1<<0) 2659d2ecfb7SGuenter Roeck #define PB_CML_FAULT_OTHER_COMM (1<<1) 2669d2ecfb7SGuenter Roeck #define PB_CML_FAULT_PROCESSOR (1<<3) 2679d2ecfb7SGuenter Roeck #define PB_CML_FAULT_MEMORY (1<<4) 2689d2ecfb7SGuenter Roeck #define PB_CML_FAULT_PACKET_ERROR (1<<5) 2699d2ecfb7SGuenter Roeck #define PB_CML_FAULT_INVALID_DATA (1<<6) 2709d2ecfb7SGuenter Roeck #define PB_CML_FAULT_INVALID_COMMAND (1<<7) 2719d2ecfb7SGuenter Roeck 2729d2ecfb7SGuenter Roeck enum pmbus_sensor_classes { 2739d2ecfb7SGuenter Roeck PSC_VOLTAGE_IN = 0, 2749d2ecfb7SGuenter Roeck PSC_VOLTAGE_OUT, 2759d2ecfb7SGuenter Roeck PSC_CURRENT_IN, 2769d2ecfb7SGuenter Roeck PSC_CURRENT_OUT, 2779d2ecfb7SGuenter Roeck PSC_POWER, 2789d2ecfb7SGuenter Roeck PSC_TEMPERATURE, 2799d2ecfb7SGuenter Roeck PSC_FAN, 2809d2ecfb7SGuenter Roeck PSC_NUM_CLASSES /* Number of power sensor classes */ 2819d2ecfb7SGuenter Roeck }; 2829d2ecfb7SGuenter Roeck 2839d2ecfb7SGuenter Roeck #define PMBUS_PAGES 32 /* Per PMBus specification */ 2849d2ecfb7SGuenter Roeck 2859d2ecfb7SGuenter Roeck /* Functionality bit mask */ 2869d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VIN (1 << 0) 2879d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VCAP (1 << 1) 2889d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VOUT (1 << 2) 2899d2ecfb7SGuenter Roeck #define PMBUS_HAVE_IIN (1 << 3) 2909d2ecfb7SGuenter Roeck #define PMBUS_HAVE_IOUT (1 << 4) 2919d2ecfb7SGuenter Roeck #define PMBUS_HAVE_PIN (1 << 5) 2929d2ecfb7SGuenter Roeck #define PMBUS_HAVE_POUT (1 << 6) 2939d2ecfb7SGuenter Roeck #define PMBUS_HAVE_FAN12 (1 << 7) 2949d2ecfb7SGuenter Roeck #define PMBUS_HAVE_FAN34 (1 << 8) 2959d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP (1 << 9) 2969d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP2 (1 << 10) 2979d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP3 (1 << 11) 2989d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_VOUT (1 << 12) 2999d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_IOUT (1 << 13) 3009d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_INPUT (1 << 14) 3019d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_TEMP (1 << 15) 3029d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_FAN12 (1 << 16) 3039d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_FAN34 (1 << 17) 3049d2ecfb7SGuenter Roeck 3051061d851SGuenter Roeck enum pmbus_data_format { linear = 0, direct, vid }; 3061061d851SGuenter Roeck 3079d2ecfb7SGuenter Roeck struct pmbus_driver_info { 3089d2ecfb7SGuenter Roeck int pages; /* Total number of pages */ 3091061d851SGuenter Roeck enum pmbus_data_format format[PSC_NUM_CLASSES]; 3109d2ecfb7SGuenter Roeck /* 3119d2ecfb7SGuenter Roeck * Support one set of coefficients for each sensor type 3129d2ecfb7SGuenter Roeck * Used for chips providing data in direct mode. 3139d2ecfb7SGuenter Roeck */ 3149d2ecfb7SGuenter Roeck int m[PSC_NUM_CLASSES]; /* mantissa for direct data format */ 3159d2ecfb7SGuenter Roeck int b[PSC_NUM_CLASSES]; /* offset */ 3169d2ecfb7SGuenter Roeck int R[PSC_NUM_CLASSES]; /* exponent */ 3179d2ecfb7SGuenter Roeck 3189d2ecfb7SGuenter Roeck u32 func[PMBUS_PAGES]; /* Functionality, per page */ 3199d2ecfb7SGuenter Roeck /* 3209d2ecfb7SGuenter Roeck * The following functions map manufacturing specific register values 3219d2ecfb7SGuenter Roeck * to PMBus standard register values. Specify only if mapping is 3229d2ecfb7SGuenter Roeck * necessary. 3239d2ecfb7SGuenter Roeck */ 3249d2ecfb7SGuenter Roeck int (*read_byte_data)(struct i2c_client *client, int page, int reg); 32546243f3aSGuenter Roeck int (*read_word_data)(struct i2c_client *client, int page, int reg); 32646243f3aSGuenter Roeck int (*write_word_data)(struct i2c_client *client, int page, int reg, 32746243f3aSGuenter Roeck u16 word); 3289d2ecfb7SGuenter Roeck /* 3299d2ecfb7SGuenter Roeck * The identify function determines supported PMBus functionality. 3309d2ecfb7SGuenter Roeck * This function is only necessary if a chip driver supports multiple 3319d2ecfb7SGuenter Roeck * chips, and the chip functionality is not pre-determined. 3329d2ecfb7SGuenter Roeck */ 3339d2ecfb7SGuenter Roeck int (*identify)(struct i2c_client *client, 3349d2ecfb7SGuenter Roeck struct pmbus_driver_info *info); 3359d2ecfb7SGuenter Roeck }; 3369d2ecfb7SGuenter Roeck 3379d2ecfb7SGuenter Roeck /* Function declarations */ 3389d2ecfb7SGuenter Roeck 3399d2ecfb7SGuenter Roeck int pmbus_set_page(struct i2c_client *client, u8 page); 3409d2ecfb7SGuenter Roeck int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg); 34146243f3aSGuenter Roeck int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word); 3429c1ed894SGuenter Roeck int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg); 343*03e9bd8dSGuenter Roeck int pmbus_write_byte(struct i2c_client *client, int page, u8 value); 3449d2ecfb7SGuenter Roeck void pmbus_clear_faults(struct i2c_client *client); 3459d2ecfb7SGuenter Roeck bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg); 3469d2ecfb7SGuenter Roeck bool pmbus_check_word_register(struct i2c_client *client, int page, int reg); 3479d2ecfb7SGuenter Roeck int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, 3489d2ecfb7SGuenter Roeck struct pmbus_driver_info *info); 3499d2ecfb7SGuenter Roeck int pmbus_do_remove(struct i2c_client *client); 3509d2ecfb7SGuenter Roeck const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client 3519d2ecfb7SGuenter Roeck *client); 3529d2ecfb7SGuenter Roeck 3539d2ecfb7SGuenter Roeck #endif /* PMBUS_H */ 354