V4L/DVB: cx18: add cx18-alsa module to Makefile

Add cx18-alsa to the Makefile and Kconfig

This work was sponsored by ONELAN Limited.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx18/Kconfig

@@ -19,3 +19,14 @@ config VIDEO_CX18
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called cx18.
+
+config VIDEO_CX18_ALSA
+	tristate "Conexant 23418 DMA audio support"
+	depends on VIDEO_CX18 && SND && EXPERIMENTAL
+	select SND_PCM
+	---help---
+	  This is a video4linux driver for direct (DMA) audio on
+	  Conexant 23418 based TV cards using ALSA.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cx18-alsa.

drivers/media/video/cx18/Makefile

@@ -3,8 +3,10 @@ cx18-objs    := cx18-driver.o cx18-cards.o cx18-i2c.o cx18-firmware.o cx18-gpio.
 	cx18-mailbox.o cx18-vbi.o cx18-audio.o cx18-video.o cx18-irq.o \
 	cx18-av-core.o cx18-av-audio.o cx18-av-firmware.o cx18-av-vbi.o cx18-scb.o \
 	cx18-dvb.o cx18-io.o
+cx18-alsa-objs := cx18-alsa-main.o cx18-alsa-pcm.o
 
 obj-$(CONFIG_VIDEO_CX18) += cx18.o
+obj-$(CONFIG_VIDEO_CX18_ALSA) += cx18-alsa.o
 
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
 EXTRA_CFLAGS += -Idrivers/media/dvb/frontends