pluto2.c

LINUX 2.6.17.4的源码

{
	/* disable interrupts */
	pluto_disable_irqs(pluto);

	pluto_reset_ts(pluto, 0);

	/* LED: disable automatic control, enable yellow, disable green */
	pluto_rw(pluto, REG_MISC, MISC_ALED | MISC_LED1 | MISC_LED0, MISC_LED1);

	/* unmap DMA */
	pluto_dma_unmap(pluto);

	pluto_reset_frontend(pluto, 0);
}

static inline u32 divide(u32 numerator, u32 denominator)
{
	if (denominator == 0)
		return ~0;

	return (numerator + denominator / 2) / denominator;
}

/* LG Innotek TDTE-E001P (Infineon TUA6034) */
static int lg_tdtpe001p_pll_set(struct dvb_frontend *fe,
				struct dvb_frontend_parameters *p)
{
	struct pluto *pluto = frontend_to_pluto(fe);
	struct i2c_msg msg;
	int ret;
	u8 buf[4];
	u32 div;

	// Fref = 166.667 Hz
	// Fref * 3 = 500.000 Hz
	// IF = 36166667
	// IF / Fref = 217
	//div = divide(p->frequency + 36166667, 166667);
	div = divide(p->frequency * 3, 500000) + 217;
	buf[0] = (div >> 8) & 0x7f;
	buf[1] = (div >> 0) & 0xff;

	if (p->frequency < 611000000)
		buf[2] = 0xb4;
	else if (p->frequency < 811000000)
		buf[2] = 0xbc;
	else
		buf[2] = 0xf4;

	// VHF: 174-230 MHz
	// center: 350 MHz
	// UHF: 470-862 MHz
	if (p->frequency < 350000000)
		buf[3] = 0x02;
	else
		buf[3] = 0x04;

	if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
		buf[3] |= 0x08;

	if (sizeof(buf) == 6) {
		buf[4] = buf[2];
		buf[4] &= ~0x1c;
		buf[4] |=  0x18;

		buf[5] = (0 << 7) | (2 << 4);
	}

	msg.addr = I2C_ADDR_TUA6034 >> 1;
	msg.flags = 0;
	msg.buf = buf;
	msg.len = sizeof(buf);

	ret = i2c_transfer(&pluto->i2c_adap, &msg, 1);
	if (ret < 0)
		return ret;
	else if (ret == 0)
		return -EREMOTEIO;

	return 0;
}

static int pluto2_request_firmware(struct dvb_frontend *fe,
				   const struct firmware **fw, char *name)
{
	struct pluto *pluto = frontend_to_pluto(fe);

	return request_firmware(fw, name, &pluto->pdev->dev);
}

static struct tda1004x_config pluto2_fe_config __devinitdata = {
	.demod_address = I2C_ADDR_TDA10046 >> 1,
	.invert = 1,
	.invert_oclk = 0,
	.xtal_freq = TDA10046_XTAL_16M,
	.agc_config = TDA10046_AGC_DEFAULT,
	.if_freq = TDA10046_FREQ_3617,
	.pll_set = lg_tdtpe001p_pll_set,
	.pll_sleep = NULL,
	.request_firmware = pluto2_request_firmware,
};

static int __devinit frontend_init(struct pluto *pluto)
{
	int ret;

	pluto->fe = tda10046_attach(&pluto2_fe_config, &pluto->i2c_adap);
	if (!pluto->fe) {
		dev_err(&pluto->pdev->dev, "could not attach frontend\n");
		return -ENODEV;
	}

	ret = dvb_register_frontend(&pluto->dvb_adapter, pluto->fe);
	if (ret < 0) {
		if (pluto->fe->ops->release)
			pluto->fe->ops->release(pluto->fe);
		return ret;
	}

	return 0;
}

static void __devinit pluto_read_rev(struct pluto *pluto)
{
	u32 val = pluto_readreg(pluto, REG_MISC) & MISC_DVR;
	dev_info(&pluto->pdev->dev, "board revision %d.%d\n",
			(val >> 12) & 0x0f, (val >> 4) & 0xff);
}

static void __devinit pluto_read_mac(struct pluto *pluto, u8 *mac)
{
	u32 val = pluto_readreg(pluto, REG_MMAC);
	mac[0] = (val >> 8) & 0xff;
	mac[1] = (val >> 0) & 0xff;

	val = pluto_readreg(pluto, REG_IMAC);
	mac[2] = (val >> 8) & 0xff;
	mac[3] = (val >> 0) & 0xff;

	val = pluto_readreg(pluto, REG_LMAC);
	mac[4] = (val >> 8) & 0xff;
	mac[5] = (val >> 0) & 0xff;

	dev_info(&pluto->pdev->dev, "MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
}

static int __devinit pluto_read_serial(struct pluto *pluto)
{
	struct pci_dev *pdev = pluto->pdev;
	unsigned int i, j;
	u8 __iomem *cis;

	cis = pci_iomap(pdev, 1, 0);
	if (!cis)
		return -EIO;

	dev_info(&pdev->dev, "S/N ");

	for (i = 0xe0; i < 0x100; i += 4) {
		u32 val = readl(&cis[i]);
		for (j = 0; j < 32; j += 8) {
			if ((val & 0xff) == 0xff)
				goto out;
			printk("%c", val & 0xff);
			val >>= 8;
		}
	}
out:
	printk("\n");
	pci_iounmap(pdev, cis);

	return 0;
}

static int __devinit pluto2_probe(struct pci_dev *pdev,
				  const struct pci_device_id *ent)
{
	struct pluto *pluto;
	struct dvb_adapter *dvb_adapter;
	struct dvb_demux *dvbdemux;
	struct dmx_demux *dmx;
	int ret = -ENOMEM;

	pluto = kzalloc(sizeof(struct pluto), GFP_KERNEL);
	if (!pluto)
		goto out;

	pluto->pdev = pdev;

	ret = pci_enable_device(pdev);
	if (ret < 0)
		goto err_kfree;

	/* enable interrupts */
	pci_write_config_dword(pdev, 0x6c, 0x8000);

	ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
	if (ret < 0)
		goto err_pci_disable_device;

	pci_set_master(pdev);

	ret = pci_request_regions(pdev, DRIVER_NAME);
	if (ret < 0)
		goto err_pci_disable_device;

	pluto->io_mem = pci_iomap(pdev, 0, 0x40);
	if (!pluto->io_mem) {
		ret = -EIO;
		goto err_pci_release_regions;
	}

	pci_set_drvdata(pdev, pluto);

	ret = request_irq(pdev->irq, pluto_irq, SA_SHIRQ, DRIVER_NAME, pluto);
	if (ret < 0)
		goto err_pci_iounmap;

	ret = pluto_hw_init(pluto);
	if (ret < 0)
		goto err_free_irq;

	/* i2c */
	i2c_set_adapdata(&pluto->i2c_adap, pluto);
	strcpy(pluto->i2c_adap.name, DRIVER_NAME);
	pluto->i2c_adap.owner = THIS_MODULE;
	pluto->i2c_adap.class = I2C_CLASS_TV_DIGITAL;
	pluto->i2c_adap.dev.parent = &pdev->dev;
	pluto->i2c_adap.algo_data = &pluto->i2c_bit;
	pluto->i2c_bit.data = pluto;
	pluto->i2c_bit.setsda = pluto_setsda;
	pluto->i2c_bit.setscl = pluto_setscl;
	pluto->i2c_bit.getsda = pluto_getsda;
	pluto->i2c_bit.getscl = pluto_getscl;
	pluto->i2c_bit.udelay = 10;
	pluto->i2c_bit.timeout = 10;

	/* Raise SCL and SDA */
	pluto_setsda(pluto, 1);
	pluto_setscl(pluto, 1);

	ret = i2c_bit_add_bus(&pluto->i2c_adap);
	if (ret < 0)
		goto err_pluto_hw_exit;

	/* dvb */
	ret = dvb_register_adapter(&pluto->dvb_adapter, DRIVER_NAME, THIS_MODULE);
	if (ret < 0)
		goto err_i2c_bit_del_bus;

	dvb_adapter = &pluto->dvb_adapter;

	pluto_read_rev(pluto);
	pluto_read_serial(pluto);
	pluto_read_mac(pluto, dvb_adapter->proposed_mac);

	dvbdemux = &pluto->demux;
	dvbdemux->filternum = 256;
	dvbdemux->feednum = 256;
	dvbdemux->start_feed = pluto_start_feed;
	dvbdemux->stop_feed = pluto_stop_feed;
	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
			DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
	ret = dvb_dmx_init(dvbdemux);
	if (ret < 0)
		goto err_dvb_unregister_adapter;

	dmx = &dvbdemux->dmx;

	pluto->hw_frontend.source = DMX_FRONTEND_0;
	pluto->mem_frontend.source = DMX_MEMORY_FE;
	pluto->dmxdev.filternum = NHWFILTERS;
	pluto->dmxdev.demux = dmx;

	ret = dvb_dmxdev_init(&pluto->dmxdev, dvb_adapter);
	if (ret < 0)
		goto err_dvb_dmx_release;

	ret = dmx->add_frontend(dmx, &pluto->hw_frontend);
	if (ret < 0)
		goto err_dvb_dmxdev_release;

	ret = dmx->add_frontend(dmx, &pluto->mem_frontend);
	if (ret < 0)
		goto err_remove_hw_frontend;

	ret = dmx->connect_frontend(dmx, &pluto->hw_frontend);
	if (ret < 0)
		goto err_remove_mem_frontend;

	ret = frontend_init(pluto);
	if (ret < 0)
		goto err_disconnect_frontend;

	dvb_net_init(dvb_adapter, &pluto->dvbnet, dmx);
out:
	return ret;

err_disconnect_frontend:
	dmx->disconnect_frontend(dmx);
err_remove_mem_frontend:
	dmx->remove_frontend(dmx, &pluto->mem_frontend);
err_remove_hw_frontend:
	dmx->remove_frontend(dmx, &pluto->hw_frontend);
err_dvb_dmxdev_release:
	dvb_dmxdev_release(&pluto->dmxdev);
err_dvb_dmx_release:
	dvb_dmx_release(dvbdemux);
err_dvb_unregister_adapter:
	dvb_unregister_adapter(dvb_adapter);
err_i2c_bit_del_bus:
	i2c_bit_del_bus(&pluto->i2c_adap);
err_pluto_hw_exit:
	pluto_hw_exit(pluto);
err_free_irq:
	free_irq(pdev->irq, pluto);
err_pci_iounmap:
	pci_iounmap(pdev, pluto->io_mem);
err_pci_release_regions:
	pci_release_regions(pdev);
err_pci_disable_device:
	pci_disable_device(pdev);
err_kfree:
	pci_set_drvdata(pdev, NULL);
	kfree(pluto);
	goto out;
}

static void __devexit pluto2_remove(struct pci_dev *pdev)
{
	struct pluto *pluto = pci_get_drvdata(pdev);
	struct dvb_adapter *dvb_adapter = &pluto->dvb_adapter;
	struct dvb_demux *dvbdemux = &pluto->demux;
	struct dmx_demux *dmx = &dvbdemux->dmx;

	dmx->close(dmx);
	dvb_net_release(&pluto->dvbnet);
	if (pluto->fe)
		dvb_unregister_frontend(pluto->fe);

	dmx->disconnect_frontend(dmx);
	dmx->remove_frontend(dmx, &pluto->mem_frontend);
	dmx->remove_frontend(dmx, &pluto->hw_frontend);
	dvb_dmxdev_release(&pluto->dmxdev);
	dvb_dmx_release(dvbdemux);
	dvb_unregister_adapter(dvb_adapter);
	i2c_bit_del_bus(&pluto->i2c_adap);
	pluto_hw_exit(pluto);
	free_irq(pdev->irq, pluto);
	pci_iounmap(pdev, pluto->io_mem);
	pci_release_regions(pdev);
	pci_disable_device(pdev);
	pci_set_drvdata(pdev, NULL);
	kfree(pluto);
}

#ifndef PCI_VENDOR_ID_SCM
#define PCI_VENDOR_ID_SCM	0x0432
#endif
#ifndef PCI_DEVICE_ID_PLUTO2
#define PCI_DEVICE_ID_PLUTO2	0x0001
#endif

static struct pci_device_id pluto2_id_table[] __devinitdata = {
	{
		.vendor = PCI_VENDOR_ID_SCM,
		.device = PCI_DEVICE_ID_PLUTO2,
		.subvendor = PCI_ANY_ID,
		.subdevice = PCI_ANY_ID,
	}, {
		/* empty */
	},
};

MODULE_DEVICE_TABLE(pci, pluto2_id_table);

static struct pci_driver pluto2_driver = {
	.name = DRIVER_NAME,
	.id_table = pluto2_id_table,
	.probe = pluto2_probe,
	.remove = __devexit_p(pluto2_remove),
};

static int __init pluto2_init(void)
{
	return pci_register_driver(&pluto2_driver);
}

static void __exit pluto2_exit(void)
{
	pci_unregister_driver(&pluto2_driver);
}

module_init(pluto2_init);
module_exit(pluto2_exit);

MODULE_AUTHOR("Andreas Oberritter <[e-mail]>");
MODULE_DESCRIPTION("Pluto2 driver");
MODULE_LICENSE("GPL");