V4L/DVB (11065): au8522: add support for analog side of demodulator

Add support for the analog functionality in the au8522 analog/digital
demodulator

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
[mchehab: renamed drivers/media/video/au8522_decoder.c as drivers/media/dvb/frontends/au8522_decoder.c to avoid breaking bisect]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/Makefile

@@ -8,7 +8,7 @@ EXTRA_CFLAGS += -Idrivers/media/common/tuners/
 s921-objs := s921_module.o s921_core.o
 stb0899-objs = stb0899_drv.o stb0899_algo.o
 stv0900-objs = stv0900_core.o stv0900_sw.o
-au8522-objs = au8522_dig.o
+au8522-objs = au8522_dig.o au8522_decoder.o
 
 obj-$(CONFIG_DVB_PLL) += dvb-pll.o
 obj-$(CONFIG_DVB_STV0299) += stv0299.o

drivers/media/dvb/frontends/au8522.h

@@ -74,6 +74,22 @@ struct dvb_frontend *au8522_attach(const struct au8522_config *config,
 }
 #endif /* CONFIG_DVB_AU8522 */
 
+/* Other modes may need to be added later */
+enum au8522_video_input {
+	AU8522_COMPOSITE_CH1 = 1,
+	AU8522_COMPOSITE_CH2,
+	AU8522_COMPOSITE_CH3,
+	AU8522_COMPOSITE_CH4,
+	AU8522_COMPOSITE_CH4_SIF,
+	AU8522_SVIDEO_CH13,
+	AU8522_SVIDEO_CH24,
+};
+
+enum au8522_audio_input {
+	AU8522_AUDIO_NONE,
+	AU8522_AUDIO_SIF,
+};
+
 #endif /* __AU8522_H__ */
 
 /*

include/linux/i2c-id.h

@@ -71,6 +71,7 @@
 #define I2C_DRIVERID_VP27SMPX	93	/* Panasonic VP27s tuner internal MPX */
 #define I2C_DRIVERID_M52790 	95      /* Mitsubishi M52790SP/FP AV switch */
 #define I2C_DRIVERID_CS5345	96	/* cs5345 audio processor	*/
+#define I2C_DRIVERID_AU8522	97	/* Auvitek au8522       */
 
 #define I2C_DRIVERID_OV7670 1048	/* Omnivision 7670 camera */