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path: root/drivers/media/video/bt8xx/bttv-input.c
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Diffstat (limited to 'drivers/media/video/bt8xx/bttv-input.c')
-rw-r--r--drivers/media/video/bt8xx/bttv-input.c84
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:
- */