au8522.h

Go to the documentation of this file.

/*
    Auvitek AU8522 QAM/8VSB demodulator driver

    Copyright (C) 2008 Steven Toth <[email protected]>

    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 __AU8522_H__
#define __AU8522_H__

#include <linux/dvb/frontend.h>

enum au8522_if_freq {
    AU8522_IF_6MHZ = 0,
    AU8522_IF_4MHZ,
    AU8522_IF_3_25MHZ,
};

struct au8522_led_config {
    u16 vsb8_strong;
    u16 qam64_strong;
    u16 qam256_strong;

    u16 gpio_output;
    /* unset hi bits, set low bits */
    u16 gpio_output_enable;
    u16 gpio_output_disable;

    u16 gpio_leds;
    u8 *led_states;
    unsigned int num_led_states;
};

struct au8522_config {
    /* the demodulator's i2c address */
    u8 demod_address;

    /* Return lock status based on tuner lock, or demod lock */
#define AU8522_TUNERLOCKING 0
#define AU8522_DEMODLOCKING 1
    u8 status_mode;

    struct au8522_led_config *led_cfg;

    enum au8522_if_freq vsb_if;
    enum au8522_if_freq qam_if;
};

#if defined(CONFIG_DVB_AU8522) ||               \
        (defined(CONFIG_DVB_AU8522_MODULE) && defined(MODULE))
extern struct dvb_frontend *au8522_attach(const struct au8522_config *config,
                      struct i2c_adapter *i2c);
#else
static inline
struct dvb_frontend *au8522_attach(const struct au8522_config *config,
                   struct i2c_adapter *i2c)
{
    printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    return NULL;
}
#endif /* CONFIG_DVB_AU8522 */

/* Other modes may need to be added later */
enum au8522_video_input {
    AU8522_COMPOSITE_CH1 = 1,
    AU8522_COMPOSITE_CH2,
    AU8522_COMPOSITE_CH3,
    AU8522_COMPOSITE_CH4,
    AU8522_COMPOSITE_CH4_SIF,
    AU8522_SVIDEO_CH13,
    AU8522_SVIDEO_CH24,
};

enum au8522_audio_input {
    AU8522_AUDIO_NONE,
    AU8522_AUDIO_SIF,
};

#endif /* __AU8522_H__ */

/*
 * Local variables:
 * c-basic-offset: 8
 */