driver for Philips PCF8591 I2C ADC sensor. Because of the mindlessness

of this chip, it is impossible to probe for and we need to be told where
it is and how to understand its output. We get this information from
openfirmware, but this restricts the use of the driver to sparc64 for now.
Only sensors that OFW identifies as temperature sensors are supported at
present.

prodded by dlg@ "get it in" deraadt@

2 files changed, 13 insertions, 2 deletions

diff --git a/sys/arch/sparc64/conf/GENERIC b/sys/arch/sparc64/conf/GENERIC
index 06943343fbd..976d7ddf339 100644
--- a/sys/arch/sparc64/conf/GENERIC
+++ b/sys/arch/sparc64/conf/GENERIC
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC,v 1.140 2006/02/01 11:03:33 dlg Exp $
+#	$OpenBSD: GENERIC,v 1.141 2006/02/10 05:28:56 djm Exp $
 #
 # For further information on compiling OpenBSD kernels, see the config(8)
 # man page.
@@ -323,6 +323,7 @@ lmenv*	at iic?				# National Semiconductor LM87
 lmtemp*	at iic?				# NS LM75/LM77 temperature sensor
 maxds*	at iic?				# Maxim DS1631
 maxtmp*	at iic?				# Maxim MAX6642/MAX6690
+pcfadc*	at iic?				# Philips PCF8591
 
 # Framebuffers
 agten*		at sbus?		# Fujitsu AG-10e framebuffer
diff --git a/sys/arch/sparc64/conf/files.sparc64 b/sys/arch/sparc64/conf/files.sparc64
index 9693d67d5de..08271b82caf 100644
--- a/sys/arch/sparc64/conf/files.sparc64
+++ b/sys/arch/sparc64/conf/files.sparc64
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.sparc64,v 1.64 2006/02/01 11:03:33 dlg Exp $
+#	$OpenBSD: files.sparc64,v 1.65 2006/02/10 05:28:56 djm Exp $
 #	$NetBSD: files.sparc64,v 1.50 2001/08/10 20:53:50 eeh Exp $
 
 # maxpartitions must be first item in files.${ARCH}
@@ -262,3 +262,13 @@ file	arch/sparc64/dev/ofwi2c.c		i2cbus
 # Machine-independent USB drivers
 #
 include	"dev/usb/files.usb"
+
+#
+# Machine-dependent I2C drivers
+#
+
+# PCF8591 ADC I2C Sensor (needs ofw, so sparc64 only for now)
+device	pcfadc
+attach	pcfadc at i2c
+file	arch/sparc64/dev/pcf8591_ofw.c		pcfadc
+