1 files changed, 77 insertions, 7 deletions

diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c
index f68717a4bdec..6bf05a7dc5f9 100644
--- a/drivers/media/video/bt8xx/bttv-input.c
+++ b/drivers/media/video/bt8xx/bttv-input.c
@@ -245,6 +245,83 @@ static void bttv_ir_stop(struct bttv *btv)
         }
 }
 
+/*
+ * Get_key functions used by I2C remotes
+ */
+
+static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+        unsigned char b;
+
+        /* poll IR chip */
+        if (1 != i2c_master_recv(ir->c, &b, 1)) {
+                dprintk(KERN_INFO DEVNAME ": read error\n");
+                return -EIO;
+        }
+
+        /* ignore 0xaa */
+        if (b==0xaa)
+                return 0;
+        dprintk(KERN_INFO DEVNAME ": key %02x\n", b);
+
+        *ir_key = b;
+        *ir_raw = b;
+        return 1;
+}
+
+/* Instantiate the I2C IR receiver device, if present */
+void __devinit init_bttv_i2c_ir(struct bttv *btv)
+{
+        const unsigned short addr_list[] = {
+                0x1a, 0x18, 0x64, 0x30, 0x71,
+                I2C_CLIENT_END
+        };
+        struct i2c_board_info info;
+
+        if (0 != btv->i2c_rc)
+                return;
+
+        memset(&info, 0, sizeof(struct i2c_board_info));
+        memset(&btv->init_data, 0, sizeof(btv->init_data));
+        strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
+
+        switch (btv->c.type) {
+        case BTTV_BOARD_PV951:
+                btv->init_data.name = "PV951";
+                btv->init_data.get_key = get_key_pv951;
+                btv->init_data.ir_codes = RC_MAP_PV951;
+                btv->init_data.type = IR_TYPE_OTHER;
+                info.addr = 0x4b;
+                break;
+        default:
+                /*
+                 * The external IR receiver is at i2c address 0x34 (0x35 for
+                 * reads).  Future Hauppauge cards will have an internal
+                 * receiver at 0x30 (0x31 for reads).  In theory, both can be
+                 * fitted, and Hauppauge suggest an external overrides an
+                 * internal.
+                 * That's why we probe 0x1a (~0x34) first. CB
+                 */
+
+                i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL);
+                return;
+        }
+
+        if (btv->init_data.name)
+                info.platform_data = &btv->init_data;
+        i2c_new_device(&btv->c.i2c_adap, &info);
+
+        return;
+}
+
+int __devexit fini_bttv_i2c(struct bttv *btv)
+{
+        if (0 != btv->i2c_rc)
+                return 0;
+
+        return i2c_del_adapter(&btv->c.i2c_adap);
+}
+
 int bttv_input_init(struct bttv *btv)
 {
         struct card_ir *ir;
@@ -420,10 +497,3 @@ void bttv_input_fini(struct bttv *btv)
         kfree(btv->remote);
         btv->remote = NULL;
 }
-
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */