Some relevant changes on tuner for supporting cards with different tunners for TV and FM (Like Pixelview cards with TVision tuners). This code is experimental.

Summary of changes:
        - tuner-core changed to support multiple I2C devices
        - created a new define option (CONFIG_TUNER_MULTI_I2C) to allow new behavor. It is commented on tuner-core.c
        - By default, it uses first scanned I2C device for FM and TV
        - New client control command TUNER_SET_ADDR allows changing I2C address for FM or TV tuner.
        - TVision 5533 MF now uses I2C on 0xC2 for TV and on 0xC0 for radio
        - TVision 5533 MF div now uses only integer arithmetics
        - tuner I2C dettach now generates warn log if failed

1 files changed, 7 insertions, 0 deletions

diff --git a/linux/include/media/tuner.h b/linux/include/media/tuner.h
index 9a7584e10..f9dd563ec 100644
--- a/linux/include/media/tuner.h
+++ b/linux/include/media/tuner.h
@@ -125,8 +125,10 @@
 
 #define TUNER_SET_TYPE               _IOW('t',1,int)    /* set tuner type */
 #define TUNER_SET_TVFREQ             _IOW('t',2,int)    /* set tv freq */
+#define TUNER_SET_ADDR               _IOW('T',3,int)	/* Chooses tuner I2C address */
 
 #define  TDA9887_SET_CONFIG          _IOW('t',5,int)
+
 /* tv card specific */
 # define TDA9887_PRESENT             (1<<0)
 # define TDA9887_PORT1_INACTIVE      (1<<1)
@@ -147,6 +149,11 @@
 #define I2C_ADDR_TDA8290        0x4b
 #define I2C_ADDR_TDA8275        0x61
 
+struct tuner_addr {
+	enum v4l2_tuner_type type;
+	unsigned short addr;
+};
+
 struct tuner {
 	/* device */
 	struct i2c_client i2c;