path: root/drivers/media/dvb/frontends/s5h1411.c

/*
    Samsung S5H1411 VSB/QAM demodulator driver

    Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>

    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 <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include "dvb_frontend.h"
#include "s5h1411.h"

struct s5h1411_state {

	struct i2c_adapter *i2c;

	/* configuration settings */
	const struct s5h1411_config *config;

	struct dvb_frontend frontend;

	fe_modulation_t current_modulation;

	u32 current_frequency;
	int if_freq;

	u8 inversion;
};

static int debug;

#define dprintk(arg...) do {	\
	if (debug)		\
		printk(arg);	\
	} while (0)

/* Register values to initialise the demod, defaults to VSB */
static struct init_tab {
	u8	addr;
	u8	reg;
	u16	data;
} init_tab[] = {
	{ S5H1411_I2C_TOP_ADDR, 0x00, 0x0071, },
	{ S5H1411_I2C_TOP_ADDR, 0x08, 0x0047, },
	{ S5H1411_I2C_TOP_ADDR, 0x1c, 0x0400, },
	{ S5H1411_I2C_TOP_ADDR, 0x1e, 0x0370, },
	{ S5H1411_I2C_TOP_ADDR, 0x1f, 0x342c, },
	{ S5H1411_I2C_TOP_ADDR, 0x24, 0x0231, },
	{ S5H1411_I2C_TOP_ADDR, 0x25, 0x1011, },
	{ S5H1411_I2C_TOP_ADDR, 0x26, 0x0f07, },
	{ S5H1411_I2C_TOP_ADDR, 0x27, 0x0f04, },
	{ S5H1411_I2C_TOP_ADDR, 0x28, 0x070f, },
	{ S5H1411_I2C_TOP_ADDR, 0x29, 0x2820, },
	{ S5H1411_I2C_TOP_ADDR, 0x2a, 0x102e, },
	{ S5H1411_I2C_TOP_ADDR, 0x2b, 0x0220, },
	{ S5H1411_I2C_TOP_ADDR, 0x2e, 0x0d0e, },
	{ S5H1411_I2C_TOP_ADDR, 0x2f, 0x1013, },
	{ S5H1411_I2C_TOP_ADDR, 0x31, 0x171b, },
	{ S5H1411_I2C_TOP_ADDR, 0x32, 0x0e0f, },
	{ S5H1411_I2C_TOP_ADDR, 0x33, 0x0f10, },
	{ S5H1411_I2C_TOP_ADDR, 0x34, 0x170e, },
	{ S5H1411_I2C_TOP_ADDR, 0x35, 0x4b10, },
	{ S5H1411_I2C_TOP_ADDR, 0x36, 0x0f17, },
	{ S5H1411_I2C_TOP_ADDR, 0x3c, 0x1577, },
	{ S5H1411_I2C_TOP_ADDR, 0x3d, 0x081a, },
	{ S5H1411_I2C_TOP_ADDR, 0x3e, 0x77ee, },
	{ S5H1411_I2C_TOP_ADDR, 0x40, 0x1e09, },
	{ S5H1411_I2C_TOP_ADDR, 0x41, 0x0f0c, },
	{ S5H1411_I2C_TOP_ADDR, 0x42, 0x1f10, },
	{ S5H1411_I2C_TOP_ADDR, 0x4d, 0x0509, },
	{ S5H1411_I2C_TOP_ADDR, 0x4e, 0x0a00, },
	{ S5H1411_I2C_TOP_ADDR, 0x50, 0x0000, },
	{ S5H1411_I2C_TOP_ADDR, 0x5b, 0x0000, },
	{ S5H1411_I2C_TOP_ADDR, 0x5c, 0x0008, },
	{ S5H1411_I2C_TOP_ADDR, 0x57, 0x1101, },
	{ S5H1411_I2C_TOP_ADDR, 0x65, 0x007c, },
	{ S5H1411_I2C_TOP_ADDR, 0x68, 0x0512, },
	{ S5H1411_I2C_TOP_ADDR, 0x69, 0x0258, },
	{ S5H1411_I2C_TOP_ADDR, 0x70, 0x0004, },
	{ S5H1411_I2C_TOP_ADDR, 0x71, 0x0007, },
	{ S5H1411_I2C_TOP_ADDR, 0x76, 0x00a9, },
	{ S5H1411_I2C_TOP_ADDR, 0x78, 0x3141, },
	{ S5H1411_I2C_TOP_ADDR, 0x7a, 0x3141, },
	{ S5H1411_I2C_TOP_ADDR, 0xb3, 0x8003, },
	{ S5H1411_I2C_TOP_ADDR, 0xb5, 0xa6bb, },
	{ S5H1411_I2C_TOP_ADDR, 0xb6, 0x0609, },
	{ S5H1411_I2C_TOP_ADDR, 0xb7, 0x2f06, },
	{ S5H1411_I2C_TOP_ADDR, 0xb8, 0x003f, },
	{ S5H1411_I2C_TOP_ADDR, 0xb9, 0x2700, },
	{ S5H1411_I2C_TOP_ADDR, 0xba, 0xfac8, },
	{ S5H1411_I2C_TOP_ADDR, 0xbe, 0x1003, },
	{ S5H1411_I2C_TOP_ADDR, 0xbf, 0x103f, },
	{ S5H1411_I2C_TOP_ADDR, 0xce, 0x2000, },
	{ S5H1411_I2C_TOP_ADDR, 0xcf, 0x0800, },
	{ S5H1411_I2C_TOP_ADDR, 0xd0, 0x0800, },
	{ S5H1411_I2C_TOP_ADDR, 0xd1, 0x0400, },
	{ S5H1411_I2C_TOP_ADDR, 0xd2, 0x0800, },
	{ S5H1411_I2C_TOP_ADDR, 0xd3, 0x2000, },
	{ S5H1411_I2C_TOP_ADDR, 0xd4, 0x3000, },
	{ S5H1411_I2C_TOP_ADDR, 0xdb, 0x4a9b, },
	{ S5H1411_I2C_TOP_ADDR, 0xdc, 0x1000, },
	{ S5H1411_I2C_TOP_ADDR, 0xde, 0x0001, },
	{ S5H1411_I2C_TOP_ADDR, 0xdf, 0x0000, },
	{ S5H1411_I2C_TOP_ADDR, 0xe3, 0x0301, },
	{ S5H1411_I2C_QAM_ADDR, 0xf3, 0x0000, },
	{ S5H1411_I2C_QAM_ADDR, 0xf3, 0x0001, },