Annotation of sys/dev/i2c/adm1026.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: adm1026.c,v 1.10 2007/06/24 05:34:35 dlg Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2005 Theo de Raadt
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice and this permission notice appear in all copies.
! 9: *
! 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 17: */
! 18:
! 19: #include <sys/param.h>
! 20: #include <sys/systm.h>
! 21: #include <sys/device.h>
! 22: #include <sys/sensors.h>
! 23:
! 24: #include <dev/i2c/i2cvar.h>
! 25:
! 26: /* ADM 1026 registers */
! 27: #define ADM1026_TEMP 0x1f
! 28: #define ADM1026_STATUS 0x20
! 29: #define ADM1026_Vbat 0x26
! 30: #define ADM1026_Ain8 0x27
! 31: #define ADM1026_EXT1 0x28
! 32: #define ADM1026_EXT2 0x29
! 33: #define ADM1026_V3_3stby 0x2a
! 34: #define ADM1026_V3_3main 0x2b
! 35: #define ADM1026_V5 0x2c
! 36: #define ADM1026_Vccp 0x2d
! 37: #define ADM1026_V12 0x2e
! 38: #define ADM1026_Vminus12 0x2f
! 39: #define ADM1026_FAN0 0x38
! 40: #define ADM1026_FAN1 0x39
! 41: #define ADM1026_FAN2 0x3a
! 42: #define ADM1026_FAN3 0x3b
! 43: #define ADM1026_FAN4 0x3c
! 44: #define ADM1026_FAN5 0x3d
! 45: #define ADM1026_FAN6 0x3e
! 46: #define ADM1026_FAN7 0x3f
! 47: #define ADM1026_EXT1_OFF 0x6e
! 48: #define ADM1026_EXT2_OFF 0x6f
! 49: #define ADM1026_FAN0123DIV 0x02
! 50: #define ADM1026_FAN4567DIV 0x03
! 51: #define ADM1026_CONTROL 0x00
! 52: #define ADM1026_CONTROL_START 0x01
! 53: #define ADM1026_CONTROL_INTCLR 0x04
! 54:
! 55: /* Sensors */
! 56: #define ADMCTS_TEMP 0
! 57: #define ADMCTS_EXT1 1
! 58: #define ADMCTS_EXT2 2
! 59: #define ADMCTS_Vbat 3
! 60: #define ADMCTS_V3_3stby 4
! 61: #define ADMCTS_V3_3main 5
! 62: #define ADMCTS_V5 6
! 63: #define ADMCTS_Vccp 7
! 64: #define ADMCTS_V12 8
! 65: #define ADMCTS_Vminus12 9
! 66: #define ADMCTS_FAN0 10
! 67: #define ADMCTS_FAN1 11
! 68: #define ADMCTS_FAN2 12
! 69: #define ADMCTS_FAN3 13
! 70: #define ADMCTS_FAN4 14
! 71: #define ADMCTS_FAN5 15
! 72: #define ADMCTS_FAN6 16
! 73: #define ADMCTS_FAN7 17
! 74: #define ADMCTS_NUM_SENSORS 18
! 75:
! 76: struct admcts_softc {
! 77: struct device sc_dev;
! 78: i2c_tag_t sc_tag;
! 79: i2c_addr_t sc_addr;
! 80:
! 81: struct ksensor sc_sensor[ADMCTS_NUM_SENSORS];
! 82: struct ksensordev sc_sensordev;
! 83: int sc_fanmul[8];
! 84: };
! 85:
! 86: int admcts_match(struct device *, void *, void *);
! 87: void admcts_attach(struct device *, struct device *, void *);
! 88: void admcts_refresh(void *);
! 89:
! 90: struct cfattach admcts_ca = {
! 91: sizeof(struct admcts_softc), admcts_match, admcts_attach
! 92: };
! 93:
! 94: struct cfdriver admcts_cd = {
! 95: NULL, "admcts", DV_DULL
! 96: };
! 97:
! 98: int
! 99: admcts_match(struct device *parent, void *match, void *aux)
! 100: {
! 101: struct i2c_attach_args *ia = aux;
! 102:
! 103: if (strcmp(ia->ia_name, "adm1026") == 0)
! 104: return (1);
! 105: return (0);
! 106: }
! 107:
! 108: void
! 109: admcts_attach(struct device *parent, struct device *self, void *aux)
! 110: {
! 111: struct admcts_softc *sc = (struct admcts_softc *)self;
! 112: struct i2c_attach_args *ia = aux;
! 113: u_int8_t cmd, data, data2;
! 114: int i;
! 115:
! 116: sc->sc_tag = ia->ia_tag;
! 117: sc->sc_addr = ia->ia_addr;
! 118:
! 119: iic_acquire_bus(sc->sc_tag, 0);
! 120: cmd = ADM1026_CONTROL;
! 121: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 122: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
! 123: iic_release_bus(sc->sc_tag, 0);
! 124: printf(": cannot get control register\n");
! 125: return;
! 126: }
! 127: data2 = data | ADM1026_CONTROL_START;
! 128: data2 = data2 & ~ADM1026_CONTROL_INTCLR;
! 129: if (data != data2) {
! 130: if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP,
! 131: sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
! 132: iic_release_bus(sc->sc_tag, 0);
! 133: printf(": cannot set control register\n");
! 134: return;
! 135: }
! 136: }
! 137:
! 138: cmd = ADM1026_FAN0123DIV;
! 139: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 140: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
! 141: iic_release_bus(sc->sc_tag, 0);
! 142: printf(": cannot get fan0123div register\n");
! 143: return;
! 144: }
! 145: sc->sc_fanmul[0] = (1 << (data >> 0) & 0x3);
! 146: sc->sc_fanmul[1] = (1 << (data >> 2) & 0x3);
! 147: sc->sc_fanmul[2] = (1 << (data >> 4) & 0x3);
! 148: sc->sc_fanmul[3] = (1 << (data >> 6) & 0x3);
! 149:
! 150: cmd = ADM1026_FAN4567DIV;
! 151: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 152: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
! 153: iic_release_bus(sc->sc_tag, 0);
! 154: printf(": cannot get fan0123div register\n");
! 155: return;
! 156: }
! 157: sc->sc_fanmul[4] = (1 << (data >> 0) & 0x3);
! 158: sc->sc_fanmul[5] = (1 << (data >> 2) & 0x3);
! 159: sc->sc_fanmul[6] = (1 << (data >> 4) & 0x3);
! 160: sc->sc_fanmul[7] = (1 << (data >> 6) & 0x3);
! 161:
! 162: iic_release_bus(sc->sc_tag, 0);
! 163:
! 164: /* Initialize sensor data. */
! 165: strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
! 166: sizeof(sc->sc_sensordev.xname));
! 167:
! 168: sc->sc_sensor[ADMCTS_TEMP].type = SENSOR_TEMP;
! 169: strlcpy(sc->sc_sensor[ADMCTS_TEMP].desc, "Internal",
! 170: sizeof(sc->sc_sensor[ADMCTS_TEMP].desc));
! 171:
! 172: sc->sc_sensor[ADMCTS_Vbat].type = SENSOR_VOLTS_DC;
! 173: strlcpy(sc->sc_sensor[ADMCTS_Vbat].desc, "Vbat",
! 174: sizeof(sc->sc_sensor[ADMCTS_Vbat].desc));
! 175:
! 176: sc->sc_sensor[ADMCTS_EXT1].type = SENSOR_TEMP;
! 177: strlcpy(sc->sc_sensor[ADMCTS_EXT1].desc, "External",
! 178: sizeof(sc->sc_sensor[ADMCTS_EXT1].desc));
! 179:
! 180: sc->sc_sensor[ADMCTS_EXT2].type = SENSOR_TEMP;
! 181: strlcpy(sc->sc_sensor[ADMCTS_EXT2].desc, "External",
! 182: sizeof(sc->sc_sensor[ADMCTS_EXT2].desc));
! 183:
! 184: sc->sc_sensor[ADMCTS_V3_3stby].type = SENSOR_VOLTS_DC;
! 185: strlcpy(sc->sc_sensor[ADMCTS_V3_3stby].desc, "3.3 V standby",
! 186: sizeof(sc->sc_sensor[ADMCTS_V3_3stby].desc));
! 187:
! 188: sc->sc_sensor[ADMCTS_V3_3main].type = SENSOR_VOLTS_DC;
! 189: strlcpy(sc->sc_sensor[ADMCTS_V3_3main].desc, "3.3 V main",
! 190: sizeof(sc->sc_sensor[ADMCTS_V3_3main].desc));
! 191:
! 192: sc->sc_sensor[ADMCTS_V5].type = SENSOR_VOLTS_DC;
! 193: strlcpy(sc->sc_sensor[ADMCTS_V5].desc, "5 V",
! 194: sizeof(sc->sc_sensor[ADMCTS_V5].desc));
! 195:
! 196: sc->sc_sensor[ADMCTS_Vccp].type = SENSOR_VOLTS_DC;
! 197: strlcpy(sc->sc_sensor[ADMCTS_Vccp].desc, "Vccp",
! 198: sizeof(sc->sc_sensor[ADMCTS_Vccp].desc));
! 199:
! 200: sc->sc_sensor[ADMCTS_V12].type = SENSOR_VOLTS_DC;
! 201: strlcpy(sc->sc_sensor[ADMCTS_V12].desc, "12 V",
! 202: sizeof(sc->sc_sensor[ADMCTS_V12].desc));
! 203:
! 204: sc->sc_sensor[ADMCTS_Vminus12].type = SENSOR_VOLTS_DC;
! 205: strlcpy(sc->sc_sensor[ADMCTS_Vminus12].desc, "-12 V",
! 206: sizeof(sc->sc_sensor[ADMCTS_Vminus12].desc));
! 207:
! 208: sc->sc_sensor[ADMCTS_FAN1].type = SENSOR_FANRPM;
! 209: sc->sc_sensor[ADMCTS_FAN2].type = SENSOR_FANRPM;
! 210: sc->sc_sensor[ADMCTS_FAN3].type = SENSOR_FANRPM;
! 211: sc->sc_sensor[ADMCTS_FAN4].type = SENSOR_FANRPM;
! 212: sc->sc_sensor[ADMCTS_FAN5].type = SENSOR_FANRPM;
! 213: sc->sc_sensor[ADMCTS_FAN6].type = SENSOR_FANRPM;
! 214: sc->sc_sensor[ADMCTS_FAN7].type = SENSOR_FANRPM;
! 215:
! 216: if (sensor_task_register(sc, admcts_refresh, 5) == NULL) {
! 217: printf(", unable to register update task\n");
! 218: return;
! 219: }
! 220:
! 221: for (i = 0; i < ADMCTS_NUM_SENSORS; i++)
! 222: sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
! 223: sensordev_install(&sc->sc_sensordev);
! 224:
! 225: printf("\n");
! 226: }
! 227:
! 228: static void
! 229: fanval(struct ksensor *sens, int mul, u_int8_t data)
! 230: {
! 231: int tmp = data * mul;
! 232:
! 233: if (tmp == 0)
! 234: sens->flags |= SENSOR_FINVALID;
! 235: else
! 236: sens->value = 1350000 / tmp;
! 237: }
! 238:
! 239: void
! 240: admcts_refresh(void *arg)
! 241: {
! 242: struct admcts_softc *sc = arg;
! 243: u_int8_t cmd, data;
! 244: int8_t sdata;
! 245:
! 246: iic_acquire_bus(sc->sc_tag, 0);
! 247:
! 248: cmd = ADM1026_TEMP;
! 249: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 250: sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
! 251: sc->sc_sensor[ADMCTS_TEMP].value = 273150000 + 1000000 * sdata;
! 252:
! 253: cmd = ADM1026_EXT1;
! 254: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 255: sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
! 256: sc->sc_sensor[ADMCTS_EXT1].value = 273150000 + 1000000 * sdata;
! 257:
! 258: cmd = ADM1026_EXT2;
! 259: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 260: sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
! 261: sc->sc_sensor[ADMCTS_EXT2].value = 273150000 + 1000000 * sdata;
! 262:
! 263: cmd = ADM1026_Vbat;
! 264: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 265: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 266: sc->sc_sensor[ADMCTS_Vbat].value = 3000000 * data / 192;
! 267:
! 268: cmd = ADM1026_V3_3stby;
! 269: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 270: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 271: sc->sc_sensor[ADMCTS_V3_3stby].value = 3300000 * data / 192;
! 272:
! 273: cmd = ADM1026_V3_3main;
! 274: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 275: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 276: sc->sc_sensor[ADMCTS_V3_3main].value = 3300000 * data / 192;
! 277:
! 278: cmd = ADM1026_V5;
! 279: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 280: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 281: sc->sc_sensor[ADMCTS_V5].value = 5500000 * data / 192;
! 282:
! 283: cmd = ADM1026_Vccp;
! 284: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 285: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 286: sc->sc_sensor[ADMCTS_Vccp].value = 2250000 * data / 192;
! 287:
! 288: cmd = ADM1026_V12;
! 289: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 290: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 291: sc->sc_sensor[ADMCTS_V12].value = 12000000 * data / 192;
! 292:
! 293: cmd = ADM1026_Vminus12;
! 294: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 295: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 296: sc->sc_sensor[ADMCTS_Vminus12].value = -2125000 * data / 192;
! 297:
! 298: cmd = ADM1026_FAN0;
! 299: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 300: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 301: fanval(&sc->sc_sensor[ADMCTS_FAN0], sc->sc_fanmul[0], data);
! 302:
! 303: cmd = ADM1026_FAN1;
! 304: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 305: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 306: fanval(&sc->sc_sensor[ADMCTS_FAN1], sc->sc_fanmul[1], data);
! 307:
! 308: cmd = ADM1026_FAN2;
! 309: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 310: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 311: fanval(&sc->sc_sensor[ADMCTS_FAN2], sc->sc_fanmul[2], data);
! 312:
! 313: cmd = ADM1026_FAN3;
! 314: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 315: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 316: fanval(&sc->sc_sensor[ADMCTS_FAN3], sc->sc_fanmul[3], data);
! 317:
! 318: cmd = ADM1026_FAN4;
! 319: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 320: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 321: fanval(&sc->sc_sensor[ADMCTS_FAN4], sc->sc_fanmul[4], data);
! 322:
! 323: cmd = ADM1026_FAN5;
! 324: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 325: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 326: fanval(&sc->sc_sensor[ADMCTS_FAN5], sc->sc_fanmul[5], data);
! 327:
! 328: cmd = ADM1026_FAN6;
! 329: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 330: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 331: fanval(&sc->sc_sensor[ADMCTS_FAN6], sc->sc_fanmul[6], data);
! 332:
! 333: cmd = ADM1026_FAN7;
! 334: if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
! 335: sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
! 336: fanval(&sc->sc_sensor[ADMCTS_FAN7], sc->sc_fanmul[7], data);
! 337:
! 338: iic_release_bus(sc->sc_tag, 0);
! 339: }
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