Mostly cosmetic updates

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4980 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 61 insertions, 8 deletions

diff --git a/nuttx/drivers/analog/Kconfig b/nuttx/drivers/analog/Kconfig
index e3205d7cb..ebed79c78 100644
--- a/nuttx/drivers/analog/Kconfig
+++ b/nuttx/drivers/analog/Kconfig
@@ -3,22 +3,75 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-config CONFIG_ADC
-	bool "Analog Digital Convert"
+config ADC
+	bool "Analog-to-Digital Conversion"
 	default n
+	---help---
+		Select to enable support for analog input device support.  This includes
+		not only Analog-to-Digital Converters (ADC) but also amplifiers and
+		analog multiplexers.
 
 config ADC_ADS125X
-	bool "TI ads1255/ads1256 support"
+	bool "TI ADS1255/ADS1256 support"
 	default n
-	depends on CONFIG_ADC
+	depends on ADC
 	select SPI
-		
-config CONFIG_DAC
-	bool "Digital Analog Convert"
+
+config ADS1255_FREQUENCY
+	int "ADS1255/ADS1256 SPI frequency"
+	default 1000000
+	depends on ADC_ADS125X
+
+config ADC_PGA11X
+	bool "TI PGA112/3/6/7 support"
+	default n
+	depends on ADC
+	select SPI
+	---help---
+		Enables support for the  PGA112, PGA113, PGA116, PGA117 Zerø-Drift
+		PROGRAMMABLE GAIN AMPLIFIER with MUX
+
+config PGA11X_SPIFREQUENCY
+	int "TI PGA112/3/6/7 SPI frequency"
+	default 1000000
+	depends on ADC_PGA11X
+	---help---
+		PGA11x SPI frequency.
+
+config PGA11X_SPIMODE
+	int "TI PGA112/3/6/7 SPI mode"
+	default 0
+	depends on ADC_PGA11X
+	---help---
+		PGA11x SPI mode.  The specification says that the device operates in Mode 0 or
+		Mode 3.  But sometimes you need to tinker with this to get things to work
+		correctly. Default:  Mode 0
+
+config PGA11X_DAISYCHAIN
+	bool "TI PGA112/3/6/7 daisy chain mode"
+	default n
+	depends on ADC_PGA11X
+	---help---
+		Enable support to use two PGA116/7's in Daisy Chain configuration.
+
+config PGA11X_MULTIPLE
+	bool "Multiple TI PGA112/3/6/7 support"
+	default n
+	depends on ADC_PGA11X && !PGA11X_DAISYCHAIN
+	---help---
+		Can be defined to support multiple PGA11X devices on board with separate
+		chip selects (not daisy chained).  Each device will require a customized
+		SPI interface to distinguish them when SPI_SELECT is called with
+		devid=SPIDEV_MUX.
+
+config DAC
+	bool "Digital-to-Analog Conversion"
 	default n	
+	---help---
+		Select to enable support for Digital-to-Analog Converters (DACs).
 
 config DAC_AD5410
 	bool "AD5410 support"
 	default n
-	depends on CONFIG_DAC
+	depends on DAC
 	select SPI