/* $OpenBSD: lm93.c,v 1.7 2007/09/06 16:39:06 cnst Exp $ */ /* * Copyright (c) 2007 Theo de Raadt * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include /* LM93 registers */ #define LM93_CPU1_TEMP 0x50 #define LM93_CPU2_TEMP 0x51 #define LM93_INT_TEMP 0x52 #define LM93_EXT_TEMP 0x53 #define LM93_IN1_V 0x56 #define LM93_IN2_V 0x57 #define LM93_IN3_V 0x58 #define LM93_IN4_V 0x59 #define LM93_IN5_V 0x5a #define LM93_IN6_V 0x5b #define LM93_IN7_V 0x5c #define LM93_IN8_V 0x5d #define LM93_IN9_V 0x5e #define LM93_IN10_V 0x5f #define LM93_IN11_V 0x60 #define LM93_IN12_V 0x61 #define LM93_IN13_V 0x62 #define LM93_IN14_V 0x63 #define LM93_IN15_V 0x64 #define LM93_IN16_V 0x65 #define LM93_TACH1L 0x6e #define LM93_TACH1H 0x6f #define LM93_TACH2L 0x70 #define LM93_TACH2H 0x71 #define LM93_TACH3L 0x72 #define LM93_TACH3H 0x73 #define LM93_TACH4L 0x74 #define LM93_TACH4H 0x75 #define LM93_REVISION 0x3f /* Sensors */ #define LMN_CPU1_TEMP 0 #define LMN_CPU2_TEMP 1 #define LMN_INT_TEMP 2 #define LMN_EXT_TEMP 3 #define LMN_IN1_V 4 #define LMN_IN2_V 5 #define LMN_IN3_V 6 #define LMN_IN4_V 7 #define LMN_IN5_V 8 #define LMN_IN6_V 9 #define LMN_IN7_V 10 #define LMN_IN8_V 11 #define LMN_IN9_V 12 #define LMN_IN10_V 13 #define LMN_IN11_V 14 #define LMN_IN12_V 15 #define LMN_IN13_V 16 #define LMN_IN14_V 17 #define LMN_IN15_V 18 #define LMN_IN16_V 19 #define LMN_TACH1 20 #define LMN_TACH2 21 #define LMN_TACH3 22 #define LMN_TACH4 23 #define LMN_NUM_SENSORS 24 struct { char sensor; u_int8_t cmd; char *name; u_short mVscale; u_short tempscale; /* else a fan */ } lmn_worklist[] = { { LMN_CPU1_TEMP, LM93_CPU1_TEMP, "CPU", 0, 1 }, { LMN_CPU2_TEMP, LM93_CPU2_TEMP, "CPU", 0, 1 }, { LMN_INT_TEMP, LM93_INT_TEMP, "Internal", 0, 1 }, { LMN_EXT_TEMP, LM93_EXT_TEMP, "External", 0, 1 }, { LMN_IN1_V, LM93_IN1_V, "+12V", 1236*10, 0 }, { LMN_IN2_V, LM93_IN2_V, "+12V", 1236*10, 0 }, { LMN_IN3_V, LM93_IN3_V, "+12V", 1236*10, 0 }, { LMN_IN4_V, LM93_IN4_V, "FSB_Vtt 1.6V", 1600, 0 }, { LMN_IN5_V, LM93_IN5_V, "3GIO 2V ", 2000, 0 }, { LMN_IN6_V, LM93_IN6_V, "ICH_Core 2V", 2000, 0 }, { LMN_IN7_V, LM93_IN7_V, "Vccp 1.6V", 1600, 0 }, { LMN_IN8_V, LM93_IN8_V, "Vccp 1.6V", 1600, 0 }, { LMN_IN9_V, LM93_IN9_V, "+3.3V", 4400, 0 }, { LMN_IN10_V, LM93_IN10_V, "+5V", 6667, 0 }, { LMN_IN11_V, LM93_IN11_V, "SCSI_Core 3.3V", 3333, 0 }, { LMN_IN12_V, LM93_IN12_V, "Mem_Core 2.6V", 2625, 0 }, { LMN_IN13_V, LM93_IN13_V, "Mem_Vtt 1.3V", 1312, 0 }, { LMN_IN14_V, LM93_IN14_V, "Gbit_Core 1.3V", 1312, 0 }, { LMN_IN15_V, LM93_IN15_V, "-12V", -1236*10, 0 }, { LMN_IN16_V, LM93_IN16_V, "+3.3V S/B", 3600, 0 }, { LMN_TACH1, LM93_TACH1L, "", 0, 0 }, { LMN_TACH2, LM93_TACH2L, "", 0, 0 }, { LMN_TACH3, LM93_TACH3L, "", 0, 0 }, { LMN_TACH4, LM93_TACH4L, "", 0, 0 } }; struct lmn_softc { struct device sc_dev; i2c_tag_t sc_tag; i2c_addr_t sc_addr; u_int8_t sc_conf; struct ksensor sc_sensor[LMN_NUM_SENSORS]; struct ksensordev sc_sensordev; }; int lmn_match(struct device *, void *, void *); void lmn_attach(struct device *, struct device *, void *); void lmn_refresh(void *); struct cfattach lmn_ca = { sizeof(struct lmn_softc), lmn_match, lmn_attach }; struct cfdriver lmn_cd = { NULL, "lmn", DV_DULL }; int lmn_match(struct device *parent, void *match, void *aux) { struct i2c_attach_args *ia = aux; if (strcmp(ia->ia_name, "lm93") == 0) return (1); return (0); } void lmn_attach(struct device *parent, struct device *self, void *aux) { struct lmn_softc *sc = (struct lmn_softc *)self; struct i2c_attach_args *ia = aux; int i; sc->sc_tag = ia->ia_tag; sc->sc_addr = ia->ia_addr; printf(": %s", ia->ia_name); /* Initialize sensor data. */ strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname, sizeof(sc->sc_sensordev.xname)); if (sensor_task_register(sc, lmn_refresh, 5) == NULL) { printf(", unable to register update task\n"); return; } for (i = 0; i < LMN_NUM_SENSORS; i++) { if (lmn_worklist[i].tempscale) sc->sc_sensor[i].type = SENSOR_TEMP; else if (lmn_worklist[i].mVscale) sc->sc_sensor[i].type = SENSOR_VOLTS_DC; else sc->sc_sensor[i].type = SENSOR_FANRPM; strlcpy(sc->sc_sensor[i].desc, lmn_worklist[i].name, sizeof(sc->sc_sensor[i].desc)); sc->sc_sensor[i].flags &= ~SENSOR_FINVALID; sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]); } sensordev_install(&sc->sc_sensordev); printf("\n"); } void lmn_refresh(void *arg) { struct lmn_softc *sc = arg; u_int8_t cmd, data, data2; u_int16_t fan; int i; iic_acquire_bus(sc->sc_tag, 0); for (i = 0; i < sizeof lmn_worklist / sizeof(lmn_worklist[0]); i++) { cmd = lmn_worklist[i].cmd; if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) { sc->sc_sensor[i].flags |= SENSOR_FINVALID; continue; } sc->sc_sensor[i].flags &= ~SENSOR_FINVALID; if (lmn_worklist[i].tempscale) { if (data == 0x80) sc->sc_sensor[i].flags |= SENSOR_FINVALID; else sc->sc_sensor[i].value = (int8_t)data * 1000000 + 273150000; } else if (lmn_worklist[i].mVscale) { sc->sc_sensor[i].value = lmn_worklist[i].mVscale * 1000 * (u_int)data / 192; } else { cmd = lmn_worklist[i].cmd + 1; /* TACHnH follows TACHnL */ if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) { sc->sc_sensor[i].flags |= SENSOR_FINVALID; continue; } fan = data + (data2 << 8); if (fan == 0 || fan == 0xffff) sc->sc_sensor[i].flags |= SENSOR_FINVALID; else sc->sc_sensor[i].value = (90000 * 60) / fan; } } iic_release_bus(sc->sc_tag, 0); }