umt-010.c

底层驱动开发

/* DVB USB framework compliant Linux driver for the HanfTek UMT-010 USB2.0
 * DVB-T receiver.
 *
 * Copyright (C) 2004-5 Patrick Boettcher ([e-mail])
 *
 *	This program is free software; you can redistribute it and/or modify it
 *	under the terms of the GNU General Public License as published by the Free
 *	Software Foundation, version 2.
 *
 * see Documentation/dvb/README.dvb-usb for more information
 */
#include "dibusb.h"

#include "mt352.h"

static int umt_mt352_demod_init(struct dvb_frontend *fe)
{
	static u8 mt352_clock_config[] = { 0x89, 0xb8, 0x2d };
	static u8 mt352_reset[] = { 0x50, 0x80 };
	static u8 mt352_mclk_ratio[] = { 0x8b, 0x00 };
	static u8 mt352_adc_ctl_1_cfg[] = { 0x8E, 0x40 };
	static u8 mt352_agc_cfg[] = { 0x67, 0x10, 0xa0 };

	static u8 mt352_sec_agc_cfg1[] = { 0x6a, 0xff };
	static u8 mt352_sec_agc_cfg2[] = { 0x6d, 0xff };
	static u8 mt352_sec_agc_cfg3[] = { 0x70, 0x40 };
	static u8 mt352_sec_agc_cfg4[] = { 0x7b, 0x03 };
	static u8 mt352_sec_agc_cfg5[] = { 0x7d, 0x0f };

	static u8 mt352_acq_ctl[] = { 0x53, 0x50 };
	static u8 mt352_input_freq_1[] = { 0x56, 0x31, 0x06 };

	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
	udelay(2000);
	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
	mt352_write(fe, mt352_mclk_ratio, sizeof(mt352_mclk_ratio));

	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
	mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));

	mt352_write(fe, mt352_sec_agc_cfg1, sizeof(mt352_sec_agc_cfg1));
	mt352_write(fe, mt352_sec_agc_cfg2, sizeof(mt352_sec_agc_cfg2));
	mt352_write(fe, mt352_sec_agc_cfg3, sizeof(mt352_sec_agc_cfg3));
	mt352_write(fe, mt352_sec_agc_cfg4, sizeof(mt352_sec_agc_cfg4));
	mt352_write(fe, mt352_sec_agc_cfg5, sizeof(mt352_sec_agc_cfg5));

	mt352_write(fe, mt352_acq_ctl, sizeof(mt352_acq_ctl));
	mt352_write(fe, mt352_input_freq_1, sizeof(mt352_input_freq_1));

	return 0;
}

static int umt_mt352_frontend_attach(struct dvb_usb_device *d)
{
	struct mt352_config umt_config;

	memset(&umt_config,0,sizeof(struct mt352_config));
	umt_config.demod_init = umt_mt352_demod_init;
	umt_config.demod_address = 0xf;
	umt_config.pll_set = dvb_usb_pll_set;

	d->fe = mt352_attach(&umt_config, &d->i2c_adap);

	return 0;
}

static int umt_tuner_attach (struct dvb_usb_device *d)
{
	d->pll_addr = 0x61;
	d->pll_desc = &dvb_pll_tua6034;
	return 0;
}

/* USB Driver stuff */
static struct dvb_usb_properties umt_properties;

static int umt_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	if (dvb_usb_device_init(intf,&umt_properties,THIS_MODULE,NULL) == 0)
		return 0;
	return -EINVAL;
}

/* do not change the order of the ID table */
static struct usb_device_id umt_table [] = {
/* 00 */	{ USB_DEVICE(USB_VID_HANFTEK,		USB_PID_HANFTEK_UMT_010_COLD) },
/* 01 */	{ USB_DEVICE(USB_VID_HANFTEK,		USB_PID_HANFTEK_UMT_010_WARM) },
			{ }		/* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, umt_table);

static struct dvb_usb_properties umt_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,

	.usb_ctrl = CYPRESS_FX2,
	.firmware = "dvb-usb-umt-010-02.fw",

	.size_of_priv     = sizeof(struct dibusb_state),

	.streaming_ctrl   = dibusb2_0_streaming_ctrl,
	.power_ctrl       = dibusb_power_ctrl,
	.frontend_attach  = umt_mt352_frontend_attach,
	.tuner_attach     = umt_tuner_attach,

	.i2c_algo         = &dibusb_i2c_algo,

	.generic_bulk_ctrl_endpoint = 0x01,
	/* parameter for the MPEG2-data transfer */
	.urb = {
		.type = DVB_USB_BULK,
		.count = 20,
		.endpoint = 0x06,
		.u = {
			.bulk = {
				.buffersize = 512,
			}
		}
	},

	.num_device_descs = 1,
	.devices = {
		{	"Hanftek UMT-010 DVB-T USB2.0",
			{ &umt_table[0], NULL },
			{ &umt_table[1], NULL },
		},
	}
};

static struct usb_driver umt_driver = {
	.owner		= THIS_MODULE,
	.name		= "dvb_usb_umt_010",
	.probe		= umt_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table	= umt_table,
};

/* module stuff */
static int __init umt_module_init(void)
{
	int result;
	if ((result = usb_register(&umt_driver))) {
		err("usb_register failed. Error number %d",result);
		return result;
	}

	return 0;
}

static void __exit umt_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&umt_driver);
}

module_init (umt_module_init);
module_exit (umt_module_exit);

MODULE_AUTHOR("Patrick Boettcher <[e-mail]>");
MODULE_DESCRIPTION("Driver for HanfTek UMT 010 USB2.0 DVB-T device");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");