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Diffstat (limited to 'sys/dev/i2c/i2c_scan.c')
-rw-r--r--sys/dev/i2c/i2c_scan.c136
1 files changed, 68 insertions, 68 deletions
diff --git a/sys/dev/i2c/i2c_scan.c b/sys/dev/i2c/i2c_scan.c
index 3ef61654105..c3b966dc5aa 100644
--- a/sys/dev/i2c/i2c_scan.c
+++ b/sys/dev/i2c/i2c_scan.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: i2c_scan.c,v 1.83 2006/06/14 20:42:36 deraadt Exp $ */
+/* $OpenBSD: i2c_scan.c,v 1.84 2006/07/12 12:34:32 kettenis Exp $ */
/*
* Copyright (c) 2005 Theo de Raadt <deraadt@openbsd.org>
@@ -334,6 +334,40 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
* register.
*/
switch (iicprobe(0x3e)) {
+ case 0x01: /* National Semiconductor */
+ /*
+ * Some newer National products use a vendor code at
+ * 0x3e of 0x01, and then 0x3f contains a product code
+ * But some older products are missing a product code,
+ * and contain who knows what in that register. We assume
+ * that some employee was smart enough to keep the numbers
+ * unique.
+ */
+ if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
+ iicprobe(0x3f) == 0x73)
+ name = "lm93";
+ else if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
+ iicprobe(0x3f) == 0x68)
+ name = "lm96000"; /* adt7460 compat? */
+ else if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
+ (iicprobe(0x3f) == 0x60 || iicprobe(0x3f) == 0x62))
+ name = "lm85"; /* lm85C/B == adt7460 compat */
+ else if ((addr & 0x7c) == 0x2c && /* addr 0b01011xx */
+ iicprobe(0x48) == addr &&
+ (iicprobe(0x3f) == 0x03 || iicprobe(0x3f) == 0x04) &&
+ (iicprobe(0x40) & 0x80) == 0x00)
+ name = "lm81";
+ break;
+ case 0x02: /* National Semiconductor? */
+ if ((iicprobe(0x3f) & 0xfc) == 0x04)
+ name = "lm87"; /* complete check */
+ break;
+ case 0x23: /* Analog Devices? */
+ if (iicprobe(0x48) == addr &&
+ (iicprobe(0x40) & 0x80) == 0x00 &&
+ (addr & 0x7c) == 0x2c)
+ name = "adm9240"; /* lm87 clone */
+ break;
case 0x41: /* Analog Devices */
/*
* Newer chips have a valid 0x3d product number, while
@@ -397,18 +431,11 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
(iicprobe(0x40) & 0x80) == 0x00)
name = "adm1022";
break;
- case 0xa1: /* Philips */
- if ((iicprobe(0x3f) & 0xf0) == 0x20 &&
- (iicprobe(0x40) & 0x80) == 0x00 &&
- (iicprobe(0x41) & 0xc0) == 0x00 &&
- (iicprobe(0x42) & 0xbc) == 0x00)
- name = "ne1619"; /* adm1025 compat */
- break;
- case 0x23: /* Analog Devices? */
- if (iicprobe(0x48) == addr &&
- (iicprobe(0x40) & 0x80) == 0x00 &&
- (addr & 0x7c) == 0x2c)
- name = "adm9240"; /* lm87 clone */
+ case 0x49: /* Texas Instruments */
+ if ((addr == 0x2c || addr == 0x2e || addr == 0x2f) &&
+ (iicprobe(0x3f) & 0xf0) == 0xc0 &&
+ (iicprobe(0x40) & 0x80) == 0x00)
+ name = "thmc50"; /* adm1022 clone */
break;
case 0x55: /* SMSC */
if ((addr & 0x7c) == 0x2c && /* addr 0b01011xx */
@@ -417,36 +444,6 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
(iicprobe(0x49) & 0xfe) == 0x80)
name = "47m192"; /* adm1025 compat */
break;
- case 0x01: /* National Semiconductor */
- /*
- * Some newer National products use a vendor code at
- * 0x3e of 0x01, and then 0x3f contains a product code
- * But some older products are missing a product code,
- * and contain who knows what in that register. We assume
- * that some employee was smart enough to keep the numbers
- * unique.
- */
- if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
- iicprobe(0x3f) == 0x73)
- name = "lm93";
- else if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
- iicprobe(0x3f) == 0x68)
- name = "lm96000"; /* adt7460 compat? */
- else if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
- (iicprobe(0x3f) == 0x60 || iicprobe(0x3f) == 0x62))
- name = "lm85"; /* lm85C/B == adt7460 compat */
- else if ((addr & 0x7c) == 0x2c && /* addr 0b01011xx */
- iicprobe(0x48) == addr &&
- (iicprobe(0x3f) == 0x03 || iicprobe(0x3f) == 0x04) &&
- (iicprobe(0x40) & 0x80) == 0x00)
- name = "lm81";
- break;
- case 0x49: /* Texas Instruments */
- if ((addr == 0x2c || addr == 0x2e || addr == 0x2f) &&
- (iicprobe(0x3f) & 0xf0) == 0xc0 &&
- (iicprobe(0x40) & 0x80) == 0x00)
- name = "thmc50"; /* adm1022 clone */
- break;
case 0x5c: /* SMSC */
if ((addr == 0x2c || addr == 0x2d || addr == 0x2e) &&
(iicprobe(0x3f) & 0xf0) == 0x60)
@@ -458,9 +455,12 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
(iicprobe(0x3f) & 0xf0) == 0xb0)
name = "emc6w201";
break;
- case 0x02: /* National Semiconductor? */
- if ((iicprobe(0x3f) & 0xfc) == 0x04)
- name = "lm87"; /* complete check */
+ case 0xa1: /* Philips */
+ if ((iicprobe(0x3f) & 0xf0) == 0x20 &&
+ (iicprobe(0x40) & 0x80) == 0x00 &&
+ (iicprobe(0x41) & 0xc0) == 0x00 &&
+ (iicprobe(0x42) & 0xbc) == 0x00)
+ name = "ne1619"; /* adm1025 compat */
break;
case 0xda: /* Dallas Semiconductor */
if (iicprobe(0x3f) == 0x01 && iicprobe(0x48) == addr &&
@@ -497,28 +497,7 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
iicprobe(0x04) <= 0x09 && (iicprobe(0xbf) & 0xf8) == 0)
name = "lm90";
break;
- case 0x4d: /* Maxim */
- if ((addr == 0x18 || addr == 0x19 || addr == 0x1a ||
- addr == 0x29 || addr == 0x2a || addr == 0x2b ||
- addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
- iicprobe(0xff) == 0x08 && (iicprobe(0x02) & 0x03) == 0 &&
- (iicprobe(0x03) & 0x07) == 0 && iicprobe(0x04) <= 0x08)
- name = "max6690";
- else if ((addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
- iicprobe(0xff) == 0x59 && (iicprobe(0x03) & 0x1f) == 0 &&
- iicprobe(0x04) <= 0x07)
- name = "max6646"; /* max6647/8/9, max6692 */
- else if ((addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
- (iicprobe(0x02) & 0x2b) == 0 &&
- (iicprobe(0x03) & 0x0f) == 0 && iicprobe(0x04) <= 0x09) {
- name = "max6657"; /* max6658, max6659 */
- skip_fc = 1;
- } else if ((addr >= 0x48 && addr <= 0x4f) &&
- (iicprobe(0x02) & 0x2b) == 0 &&
- (iicprobe(0x03) & 0x0f) == 0)
- name = "max6642";
- break;
- case 0x41:
+ case 0x41: /* Analog Devices */
if ((addr == 0x4c || addr == 0x4d) &&
iicprobe(0xff) == 0x51 &&
(iicprobe(0x03) & 0x1f) == 0x04 &&
@@ -547,6 +526,27 @@ iic_probe(struct device *self, struct i2cbus_attach_args *iba, u_int8_t addr)
name = "adm1032"; /* or adm1020 */
skip_fc = 1;
}
+ case 0x4d: /* Maxim */
+ if ((addr == 0x18 || addr == 0x19 || addr == 0x1a ||
+ addr == 0x29 || addr == 0x2a || addr == 0x2b ||
+ addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
+ iicprobe(0xff) == 0x08 && (iicprobe(0x02) & 0x03) == 0 &&
+ (iicprobe(0x03) & 0x07) == 0 && iicprobe(0x04) <= 0x08)
+ name = "max6690";
+ else if ((addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
+ iicprobe(0xff) == 0x59 && (iicprobe(0x03) & 0x1f) == 0 &&
+ iicprobe(0x04) <= 0x07)
+ name = "max6646"; /* max6647/8/9, max6692 */
+ else if ((addr == 0x4c || addr == 0x4d || addr == 0x4e) &&
+ (iicprobe(0x02) & 0x2b) == 0 &&
+ (iicprobe(0x03) & 0x0f) == 0 && iicprobe(0x04) <= 0x09) {
+ name = "max6657"; /* max6658, max6659 */
+ skip_fc = 1;
+ } else if ((addr >= 0x48 && addr <= 0x4f) &&
+ (iicprobe(0x02) & 0x2b) == 0 &&
+ (iicprobe(0x03) & 0x0f) == 0)
+ name = "max6642";
+ break;
}
if (addr == iicprobe(0x48) &&
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 09:29:05 +0000