static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg) { struct rtl28xxu_priv *priv = d->priv; switch (priv->tuner) { case TUNER_RTL2832_FC0012: return rtl2832u_fc0012_tuner_callback(d, cmd, arg); case TUNER_RTL2832_TUA9001: return rtl2832u_tua9001_tuner_callback(d, cmd, arg); default: break; } return 0; }
static int rtl2832u_frontend_callback(void *adapter_priv, int component, int cmd, int arg) { struct i2c_adapter *adapter = adapter_priv; struct device *parent = adapter->dev.parent; struct i2c_adapter *parent_adapter; struct dvb_usb_device *d; struct rtl28xxu_dev *dev; /* * All tuners are connected to demod muxed I2C adapter. We have to * resolve its parent adapter in order to get handle for this driver * private data. That is a bit hackish solution, GPIO or direct driver * callback would be better... */ if (parent != NULL && parent->type == &i2c_adapter_type) parent_adapter = to_i2c_adapter(parent); else return -EINVAL; d = i2c_get_adapdata(parent_adapter); dev = d->priv; dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n", component, cmd, arg); switch (component) { case DVB_FRONTEND_COMPONENT_TUNER: switch (dev->tuner) { case TUNER_RTL2832_FC0012: return rtl2832u_fc0012_tuner_callback(d, cmd, arg); case TUNER_RTL2832_TUA9001: return rtl2832u_tua9001_tuner_callback(d, cmd, arg); } } return 0; }