diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2005-11-17 01:09:37 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2005-11-17 01:09:37 +0000 |
| commit | a6957457d9b1e8fd0dcd750e0d10dd1d39bf2396 (patch) | |
| tree | a90e275af78e03067b0902415f8a5bec1025f516 /sys/dev/i2c/adt7460.c | |
| parent | 7c552ab29b9862d89542aef4012d396143798460 (diff) | |
grok adt7467 somewhat, and fan disconnects
Diffstat (limited to 'sys/dev/i2c/adt7460.c')
| -rw-r--r-- | sys/dev/i2c/adt7460.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/sys/dev/i2c/adt7460.c b/sys/dev/i2c/adt7460.c index d7fd38637d7..500b3d1269d 100644 --- a/sys/dev/i2c/adt7460.c +++ b/sys/dev/i2c/adt7460.c @@ -1,4 +1,4 @@ -/* $OpenBSD: adt7460.c,v 1.1 2005/11/17 00:37:14 deraadt Exp $ */ +/* $OpenBSD: adt7460.c,v 1.2 2005/11/17 01:09:36 deraadt Exp $ */ /* * Copyright (c) 2005 Mark Kettenis @@ -38,6 +38,7 @@ #define ADT7460_TACH4L 0x2e #define ADT7460_TACH4H 0x2f #define ADT7460_REVISION 0x3f +#define ADT7460_CONFIG 0x40 /* Sensors */ #define ADT_2_5V 0 @@ -55,6 +56,7 @@ struct adt_softc { struct device sc_dev; i2c_tag_t sc_tag; i2c_addr_t sc_addr; + int sc_chip; struct sensor sc_sensor[ADT_NUM_SENSORS]; }; @@ -78,7 +80,8 @@ adt_match(struct device *parent, void *match, void *aux) struct i2c_attach_args *ia = aux; if (ia->ia_compat) { - if (strcmp(ia->ia_compat, "adt7460") == 0) + if (strcmp(ia->ia_compat, "adt7460") == 0 || + strcmp(ia->ia_compat, "adt7467") == 0) return (1); return (0); } @@ -90,7 +93,7 @@ adt_attach(struct device *parent, struct device *self, void *aux) { struct adt_softc *sc = (struct adt_softc *)self; struct i2c_attach_args *ia = aux; - u_int8_t cmd, rev; + u_int8_t cmd, rev, data; int i; sc->sc_tag = ia->ia_tag; @@ -98,6 +101,10 @@ adt_attach(struct device *parent, struct device *self, void *aux) iic_acquire_bus(sc->sc_tag, 0); + sc->sc_chip = 7460; + if (ia->ia_compat && strcmp(ia->ia_compat, "adt7467") == 0) + sc->sc_chip = 7467; + cmd = ADT7460_REVISION; if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr, &cmd, sizeof cmd, &rev, sizeof rev, 0)) { @@ -106,9 +113,20 @@ adt_attach(struct device *parent, struct device *self, void *aux) return; } + if (sc->sc_chip == 7460) { + data = 1; + cmd = ADT7460_CONFIG; + if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, + sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) { + iic_release_bus(sc->sc_tag, 0); + printf(": cannot set control register\n"); + return; + } + } + iic_release_bus(sc->sc_tag, 0); - printf(": ADT7460 rev %x", rev); + printf(": ADT%d rev %x", sc->sc_chip, rev); /* Initialize sensor data. */ for (i = 0; i < ADT_NUM_SENSORS; i++) @@ -224,7 +242,7 @@ adt_refresh(void *arg) } fan = data + (data2 << 8); - if (fan == 0) + if (fan == 0 || fan == 0xffff) sc->sc_sensor[i].flags |= SENSOR_FINVALID; else sc->sc_sensor[i].value = (90000 * 60) / fan; |