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-rw-r--r--sys/dev/i2c/maxim6690.c59
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,