V4L/DVB (11158): pvrusb2: New device attribute mechanism to specify sub-devices

Set up new mechanism for declaring and loading appropriate sub-devices
when driver initializes.  This is another part of the v4l2-subdev
adoption.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
index cb3a33eb0276..f06923986824 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
@@ -33,6 +33,31 @@
 */
 
 
+#define PVR2_CLIENT_ID_MSP3400 1
+#define PVR2_CLIENT_ID_CX25840 2
+#define PVR2_CLIENT_ID_SAA7115 3
+#define PVR2_CLIENT_ID_TUNER 4
+#define PVR2_CLIENT_ID_CS53132A 5
+
+struct pvr2_device_client_desc {
+        /* One ovr PVR2_CLIENT_ID_xxxx */
+        unsigned char module_id;
+
+        /* Null-terminated array of I2C addresses to try in order
+           initialize the module.  It's safe to make this null terminated
+           since we're never going to encounter an i2c device with an
+           address of zero.  If this is a null pointer or zero-length,
+           then no I2C addresses have been specified, in which case we'll
+           try some compiled in defaults for now. */
+        unsigned char *i2c_address_list;
+};
+
+struct pvr2_device_client_table {
+        const struct pvr2_device_client_desc *lst;
+        unsigned char cnt;
+};
+
+
 struct pvr2_string_table {
         const char **lst;
         unsigned int cnt;
@@ -66,6 +91,9 @@ struct pvr2_device_desc {
         /* List of additional client modules we need to load */
         struct pvr2_string_table client_modules;
 
+        /* List of defined client modules we need to load */
+        struct pvr2_device_client_table client_table;
+
         /* List of FX2 firmware file names we should search; if empty then
            FX2 firmware check / load is skipped and we assume the device
            was initialized from internal ROM. */