cx23885-dvb.c

trident tm5600的linux驱动

	struct cx23885_i2c *i2c_bus = NULL;
	struct videobuf_dvb_frontend *fe0;

	/* Get the first frontend */
	fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
	if (!fe0)
		return -EINVAL;

	/* init struct videobuf_dvb */
	fe0->dvb.name = dev->name;

	/* init frontend */
	switch (dev->board) {
	case CX23885_BOARD_HAUPPAUGE_HVR1250:
		i2c_bus = &dev->i2c_bus[0];
		fe0->dvb.frontend = dvb_attach(s5h1409_attach,
						&hauppauge_generic_config,
						&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			dvb_attach(mt2131_attach, fe0->dvb.frontend,
				   &i2c_bus->i2c_adap,
				   &hauppauge_generic_tunerconfig, 0);
		}
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1800:
		i2c_bus = &dev->i2c_bus[0];
		switch (alt_tuner) {
		case 1:
			fe0->dvb.frontend =
				dvb_attach(s5h1409_attach,
					   &hauppauge_ezqam_config,
					   &i2c_bus->i2c_adap);
			if (fe0->dvb.frontend != NULL) {
				dvb_attach(tda829x_attach, fe0->dvb.frontend,
					   &dev->i2c_bus[1].i2c_adap, 0x42,
					   &tda829x_no_probe);
				dvb_attach(tda18271_attach, fe0->dvb.frontend,
					   0x60, &dev->i2c_bus[1].i2c_adap,
					   &hauppauge_tda18271_config);
			}
			break;
		case 0:
		default:
			fe0->dvb.frontend =
				dvb_attach(s5h1409_attach,
					   &hauppauge_generic_config,
					   &i2c_bus->i2c_adap);
			if (fe0->dvb.frontend != NULL)
				dvb_attach(mt2131_attach, fe0->dvb.frontend,
					   &i2c_bus->i2c_adap,
					   &hauppauge_generic_tunerconfig, 0);
			break;
		}
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
		i2c_bus = &dev->i2c_bus[0];
		fe0->dvb.frontend = dvb_attach(s5h1409_attach,
						&hauppauge_hvr1800lp_config,
						&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			dvb_attach(mt2131_attach, fe0->dvb.frontend,
				   &i2c_bus->i2c_adap,
				   &hauppauge_generic_tunerconfig, 0);
		}
		break;
	case CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP:
		i2c_bus = &dev->i2c_bus[0];
		fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
						&fusionhdtv_5_express,
						&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
				   &i2c_bus->i2c_adap, 0x61,
				   TUNER_LG_TDVS_H06XF);
		}
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
		i2c_bus = &dev->i2c_bus[1];
		fe0->dvb.frontend = dvb_attach(s5h1409_attach,
						&hauppauge_hvr1500q_config,
						&dev->i2c_bus[0].i2c_adap);
		if (fe0->dvb.frontend != NULL)
			dvb_attach(xc5000_attach, fe0->dvb.frontend,
				   &i2c_bus->i2c_adap,
				   &hauppauge_hvr1500q_tunerconfig);
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1500:
		i2c_bus = &dev->i2c_bus[1];
		fe0->dvb.frontend = dvb_attach(s5h1409_attach,
						&hauppauge_hvr1500_config,
						&dev->i2c_bus[0].i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			struct dvb_frontend *fe;
			struct xc2028_config cfg = {
				.i2c_adap  = &i2c_bus->i2c_adap,
				.i2c_addr  = 0x61,
			};
			static struct xc2028_ctrl ctl = {
				.fname       = XC2028_DEFAULT_FIRMWARE,
				.max_len     = 64,
				.scode_table = XC3028_FE_OREN538,
			};

			fe = dvb_attach(xc2028_attach,
					fe0->dvb.frontend, &cfg);
			if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
				fe->ops.tuner_ops.set_config(fe, &ctl);
		}
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1200:
	case CX23885_BOARD_HAUPPAUGE_HVR1700:
		i2c_bus = &dev->i2c_bus[0];
		fe0->dvb.frontend = dvb_attach(tda10048_attach,
			&hauppauge_hvr1200_config,
			&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			dvb_attach(tda829x_attach, fe0->dvb.frontend,
				&dev->i2c_bus[1].i2c_adap, 0x42,
				&tda829x_no_probe);
			dvb_attach(tda18271_attach, fe0->dvb.frontend,
				0x60, &dev->i2c_bus[1].i2c_adap,
				&hauppauge_hvr1200_tuner_config);
		}
		break;
	case CX23885_BOARD_HAUPPAUGE_HVR1400:
		i2c_bus = &dev->i2c_bus[0];
		fe0->dvb.frontend = dvb_attach(dib7000p_attach,
			&i2c_bus->i2c_adap,
			0x12, &hauppauge_hvr1400_dib7000_config);
		if (fe0->dvb.frontend != NULL) {
			struct dvb_frontend *fe;
			struct xc2028_config cfg = {
				.i2c_adap  = &dev->i2c_bus[1].i2c_adap,
				.i2c_addr  = 0x64,
			};
			static struct xc2028_ctrl ctl = {
				.fname   = XC3028L_DEFAULT_FIRMWARE,
				.max_len = 64,
				.demod   = 5000,
				/* This is true for all demods with
					v36 firmware? */
				.type    = XC2028_D2633,
			};

			fe = dvb_attach(xc2028_attach,
					fe0->dvb.frontend, &cfg);
			if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
				fe->ops.tuner_ops.set_config(fe, &ctl);
		}
		break;
	case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
		i2c_bus = &dev->i2c_bus[port->nr - 1];

		fe0->dvb.frontend = dvb_attach(s5h1409_attach,
						&dvico_s5h1409_config,
						&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend == NULL)
			fe0->dvb.frontend = dvb_attach(s5h1411_attach,
							&dvico_s5h1411_config,
							&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL)
			dvb_attach(xc5000_attach, fe0->dvb.frontend,
				   &i2c_bus->i2c_adap,
				   &dvico_xc5000_tunerconfig);
		break;
	case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP: {
		i2c_bus = &dev->i2c_bus[port->nr - 1];

		fe0->dvb.frontend = dvb_attach(zl10353_attach,
					       &dvico_fusionhdtv_xc3028,
					       &i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			struct dvb_frontend      *fe;
			struct xc2028_config	  cfg = {
				.i2c_adap  = &i2c_bus->i2c_adap,
				.i2c_addr  = 0x61,
			};
			static struct xc2028_ctrl ctl = {
				.fname       = XC2028_DEFAULT_FIRMWARE,
				.max_len     = 64,
				.demod       = XC3028_FE_ZARLINK456,
			};

			fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
					&cfg);
			if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
				fe->ops.tuner_ops.set_config(fe, &ctl);
		}
		break;
	}
	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
		i2c_bus = &dev->i2c_bus[0];

		fe0->dvb.frontend = dvb_attach(zl10353_attach,
			&dvico_fusionhdtv_xc3028,
			&i2c_bus->i2c_adap);
		if (fe0->dvb.frontend != NULL) {
			struct dvb_frontend      *fe;
			struct xc2028_config	  cfg = {
				.i2c_adap  = &dev->i2c_bus[1].i2c_adap,
				.i2c_addr  = 0x61,
			};
			static struct xc2028_ctrl ctl = {
				.fname       = XC2028_DEFAULT_FIRMWARE,
				.max_len     = 64,
				.demod       = XC3028_FE_ZARLINK456,
			};

			fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
				&cfg);
			if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
				fe->ops.tuner_ops.set_config(fe, &ctl);
		}
		break;
	default:
		printk(KERN_INFO "%s: The frontend of your DVB/ATSC card "
			" isn't supported yet\n",
		       dev->name);
		break;
	}
	if (NULL == fe0->dvb.frontend) {
		printk(KERN_ERR "%s: frontend initialization failed\n",
			dev->name);
		return -1;
	}
	/* define general-purpose callback pointer */
	fe0->dvb.frontend->callback = cx23885_tuner_callback;

	/* Put the analog decoder in standby to keep it quiet */
	cx23885_call_i2c_clients(i2c_bus, TUNER_SET_STANDBY, NULL);

	if (fe0->dvb.frontend->ops.analog_ops.standby)
		fe0->dvb.frontend->ops.analog_ops.standby(fe0->dvb.frontend);

	/* register everything */
	return videobuf_dvb_register_bus(&port->frontends, THIS_MODULE, port,
		&dev->pci->dev, adapter_nr, 0);

}

int cx23885_dvb_register(struct cx23885_tsport *port)
{

	struct videobuf_dvb_frontend *fe0;
	struct cx23885_dev *dev = port->dev;
	int err, i;

	/* Here we need to allocate the correct number of frontends,
	 * as reflected in the cards struct. The reality is that currrently
	 * no cx23885 boards support this - yet. But, if we don't modify this
	 * code then the second frontend would never be allocated (later)
	 * and fail with error before the attach in dvb_register().
	 * Without these changes we risk an OOPS later. The changes here
	 * are for safety, and should provide a good foundation for the
	 * future addition of any multi-frontend cx23885 based boards.
	 */
	printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__,
		port->num_frontends);

	for (i = 1; i <= port->num_frontends; i++) {
		if (videobuf_dvb_alloc_frontend(
			&port->frontends, i) == NULL) {
			printk(KERN_ERR "%s() failed to alloc\n", __func__);
			return -ENOMEM;
		}

		fe0 = videobuf_dvb_get_frontend(&port->frontends, i);
		if (!fe0)
			err = -EINVAL;

		dprintk(1, "%s\n", __func__);
		dprintk(1, " ->probed by Card=%d Name=%s, PCI %02x:%02x\n",
			dev->board,
			dev->name,
			dev->pci_bus,
			dev->pci_slot);

		err = -ENODEV;

		/* dvb stuff */
		/* We have to init the queue for each frontend on a port. */
		printk(KERN_INFO "%s: cx23885 based dvb card\n", dev->name);
		videobuf_queue_sg_init(&fe0->dvb.dvbq, &dvb_qops,
			    &dev->pci->dev, &port->slock,
			    V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_TOP,
			    sizeof(struct cx23885_buffer), port);
	}
	err = dvb_register(port);
	if (err != 0)
		printk(KERN_ERR "%s() dvb_register failed err = %d\n",
			__func__, err);

	return err;
}

int cx23885_dvb_unregister(struct cx23885_tsport *port)
{
	struct videobuf_dvb_frontend *fe0;

	/* FIXME: in an error condition where the we have
	 * an expected number of frontends (attach problem)
	 * then this might not clean up correctly, if 1
	 * is invalid.
	 * This comment only applies to future boards IF they
	 * implement MFE support.
	 */
	fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
	if (fe0->dvb.frontend)
		videobuf_dvb_unregister_bus(&port->frontends);

	return 0;
}