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/*
Driver for Philips tda1004xh OFDM Frontend
(c) 2004 Andrew de Quincey
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.
*/
#ifndef TDA1004X_H
#define TDA1004X_H
#include <linux/dvb/frontend.h>
#include <linux/firmware.h>
enum tda10046_xtal {
TDA10046_XTAL_4M,
TDA10046_XTAL_16M,
};
enum tda10046_agc {
TDA10046_AGC_DEFAULT, /* original configuration */
TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negtive */
TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */
TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */
};
/* Many (hybrid) boards use GPIO 1 and 3
GPIO1 analog - dvb switch
GPIO3 firmware eeprom address switch
*/
enum tda10046_gpio {
TDA10046_GPTRI = 0x00, /* All GPIOs tristate */
TDA10046_GP00 = 0x40, /* GPIO3=0, GPIO1=0 */
TDA10046_GP01 = 0x42, /* GPIO3=0, GPIO1=1 */
TDA10046_GP10 = 0x48, /* GPIO3=1, GPIO1=0 */
TDA10046_GP11 = 0x4a, /* GPIO3=1, GPIO1=1 */
TDA10046_GP00_I = 0x80, /* GPIO3=0, GPIO1=0, invert in sleep mode*/
TDA10046_GP01_I = 0x82, /* GPIO3=0, GPIO1=1, invert in sleep mode */
TDA10046_GP10_I = 0x88, /* GPIO3=1, GPIO1=0, invert in sleep mode */
TDA10046_GP11_I = 0x8a, /* GPIO3=1, GPIO1=1, invert in sleep mode */
};
enum tda10046_if {
TDA10046_FREQ_3617, /* original config, 36,166 MHZ */
TDA10046_FREQ_3613, /* 36,13 MHZ */
TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */
TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */
};
struct tda1004x_config
{
/* the demodulator's i2c address */
u8 demod_address;
/* does the "inversion" need inverted? */
u8 invert;
/* Does the OCLK signal need inverted? */
u8 invert_oclk;
/* Xtal frequency, 4 or 16MHz*/
enum tda10046_xtal xtal_freq;
/* IF frequency */
enum tda10046_if if_freq;
/* AGC configuration */
enum tda10046_agc agc_config;
/* setting of GPIO1 and 3 */
enum tda10046_gpio gpio_config;
/* slave address and configuration of the tuner */
u8 tuner_address;
u8 tuner_config;
u8 antenna_switch;
/* if the board uses another I2c Bridge (tda8290), its address */
u8 i2c_gate;
/* request firmware for device */
int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
};
enum tda1004x_demod {
TDA1004X_DEMOD_TDA10045,
TDA1004X_DEMOD_TDA10046,
};
struct tda1004x_state {
struct i2c_adapter* i2c;
const struct tda1004x_config* config;
struct dvb_frontend frontend;
/* this allows to store probed board information */
int conf_probed;
/* private demod data */
enum tda1004x_demod demod_type;
};
#if defined(CONFIG_DVB_TDA1004X) || (defined(CONFIG_DVB_TDA1004X_MODULE) && defined(MODULE))
extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
struct i2c_adapter* i2c);
extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
struct i2c_adapter* i2c);
#else
static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
struct i2c_adapter* i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
return NULL;
}
static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
struct i2c_adapter* i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
return NULL;
}
#endif // CONFIG_DVB_TDA1004X
static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
int r = 0;
u8 buf[] = {reg, val};
if (fe->ops.write)
r = fe->ops.write(fe, buf, 2);
return r;
}
#endif // TDA1004X_H
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