diff options
Diffstat (limited to 'sys/dev/i2c')
-rw-r--r-- | sys/dev/i2c/maxim6690.c | 59 |
1 files changed, 15 insertions, 44 deletions
diff --git a/sys/dev/i2c/maxim6690.c b/sys/dev/i2c/maxim6690.c index 16eb181b439..62c01888fbc 100644 --- a/sys/dev/i2c/maxim6690.c +++ b/sys/dev/i2c/maxim6690.c @@ -1,4 +1,4 @@ -/* $OpenBSD: maxim6690.c,v 1.3 2005/12/27 17:18:18 deraadt Exp $ */ +/* $OpenBSD: maxim6690.c,v 1.4 2005/12/28 23:05:21 deraadt Exp $ */ /* * Copyright (c) 2005 Theo de Raadt @@ -34,9 +34,11 @@ #define MAX6642_TEMP_INVALID 0xff /* sensor disconnected */ #define MAX6690_TEMP_INVALID 0x80 /* sensor disconnected */ +#define LM90_TEMP_INVALID 0x7f /* sensor disconnected */ #define MAX6642_TEMP2_MASK 0xc0 /* significant bits */ #define MAX6690_TEMP2_MASK 0xe0 /* significant bits */ +#define LM90_TEMP2_MASK 0xe0 /* significant bits */ /* Sensors */ #define MAXTMP_INT 0 @@ -68,46 +70,19 @@ struct cfdriver maxtmp_cd = { }; int -maxtmp_check(struct i2c_attach_args *ia, u_int8_t *idp, u_int8_t *revp) -{ - u_int8_t cmd, id, rev; - - iic_acquire_bus(ia->ia_tag, 0); - - cmd = MAX6690_DEVID; - if (iic_exec(ia->ia_tag, I2C_OP_READ_WITH_STOP, - ia->ia_addr, &cmd, sizeof cmd, &id, sizeof id, 0)) { - iic_release_bus(ia->ia_tag, 0); - return 0; - } - - cmd = MAX6690_REVISION; - if (iic_exec(ia->ia_tag, I2C_OP_READ_WITH_STOP, - ia->ia_addr, &cmd, sizeof cmd, &rev, sizeof rev, 0)) { - iic_release_bus(ia->ia_tag, 0); - return 0; - } - - iic_release_bus(ia->ia_tag, 0); - - *idp = id; - *revp = rev; - - if (id == 0x4d) - return (1); - return (0); -} - -int maxtmp_match(struct device *parent, void *match, void *aux) { struct i2c_attach_args *ia = aux; if (strcmp(ia->ia_name, "max6642") == 0 || - strcmp(ia->ia_name, "max6690") == 0) + strcmp(ia->ia_name, "max6690") == 0 || + strcmp(ia->ia_name, "lm86") == 0 || + strcmp(ia->ia_name, "lm89") == 0 || + strcmp(ia->ia_name, "lm90") == 0 || + strcmp(ia->ia_name, "lm99") == 0 || + strcmp(ia->ia_name, "lm99-1") == 0) return (1); return (0); - // return (maxtmp_check(ia, &id, &rev)); } void @@ -115,27 +90,23 @@ maxtmp_attach(struct device *parent, struct device *self, void *aux) { struct maxtmp_softc *sc = (struct maxtmp_softc *)self; struct i2c_attach_args *ia = aux; - u_int8_t id, rev; int i; sc->sc_tag = ia->ia_tag; sc->sc_addr = ia->ia_addr; - if (maxtmp_check(ia, &id, &rev) == 0) { - printf(": unknown Device ID 0x%x\n", id); - return; - } - if (strcmp(ia->ia_name, "max6642") == 0) { sc->sc_temp_invalid = MAX6642_TEMP_INVALID; sc->sc_temp2_mask = MAX6642_TEMP2_MASK; - printf(": MAX6642"); - } else { + } if (strcmp(ia->ia_name, "max6690") == 0) { sc->sc_temp_invalid = MAX6690_TEMP_INVALID; sc->sc_temp2_mask = MAX6690_TEMP2_MASK; - printf(": MAX6690 rev 0x%x", rev); + } else { + sc->sc_temp_invalid = LM90_TEMP_INVALID; + sc->sc_temp2_mask = LM90_TEMP2_MASK; } - + printf(": %s", ia->ia_name); + /* Initialize sensor data. */ for (i = 0; i < MAXTMP_NUM_SENSORS; i++) strlcpy(sc->sc_sensor[i].device, sc->sc_dev.dv_xname, |