path: root/drivers/media/dvb/frontends/lgs8gxx.c

/*
 *    Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
 *    LGS8913, LGS8GL5, LGS8G75
 *    experimental support LGS8G42, LGS8G52
 *
 *    Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
 *    Copyright (C) 2008 Sirius International (Hong Kong) Limited
 *    Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
 *
 *    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; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <asm/div64.h>

#include "dvb_frontend.h"

#include "lgs8gxx.h"
#include "lgs8gxx_priv.h"

#define dprintk(args...) \
	do { \
		if (debug) \
			printk(KERN_DEBUG "lgs8gxx: " args); \
	} while (0)

static int debug;
static int fake_signal_str = 1;

module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");

module_param(fake_signal_str, int, 0644);
MODULE_PARM_DESC(fake_signal_str, "fake signal strength for LGS8913."
"Signal strength calculation is slow.(default:on).");

static const u8 lgs8g75_initdat[] = {
	0x01, 0x30, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xE4, 0xF5, 0xA8, 0xF5, 0xB8, 0xF5, 0x88, 0xF5,
	0x89, 0xF5, 0x87, 0x75, 0xD0, 0x00, 0x11, 0x50,
	0x11, 0x50, 0xF4, 0xF5, 0x80, 0xF5, 0x90, 0xF5,
	0xA0, 0xF5, 0xB0, 0x75, 0x81, 0x30, 0x80, 0x01,
	0x32, 0x90, 0x80, 0x12, 0x74, 0xFF, 0xF0, 0x90,
	0x80, 0x13, 0x74, 0x1F, 0xF0, 0x90, 0x80, 0x23,
	0x74, 0x01, 0xF0, 0x90, 0x80, 0x22, 0xF0, 0x90,
	0x00, 0x48, 0x74, 0x00, 0xF0, 0x90, 0x80, 0x4D,
	0x74, 0x05, 0xF0, 0x90, 0x80, 0x09, 0xE0, 0x60,
	0x21, 0x12, 0x00, 0xDD, 0x14, 0x60, 0x1B, 0x12,
	0x00, 0xDD, 0x14, 0x60, 0x15, 0x12, 0x00, 0xDD,
	0x14, 0x60, 0x0F, 0x12, 0x00, 0xDD, 0x14, 0x60,
	0x09, 0x12, 0x00, 0xDD, 0x14, 0x60, 0x03, 0x12,
	0x00, 0xDD, 0x90, 0x80, 0x42, 0xE0, 0x60, 0x0B,
	0x14, 0x60, 0x0C, 0x14, 0x60, 0x0D, 0x14, 0x60,
	0x0E, 0x01, 0xB3, 0x74, 0x04, 0x01, 0xB9, 0x74,
	0x05, 0x01, 0xB9, 0x74, 0x07, 0x01, 0xB9, 0x74,
	0x0A, 0xC0, 0xE0, 0x74, 0xC8, 0x12, 0x00, 0xE2,
	0xD0, 0xE0, 0x14, 0x70,