/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
        STB6100 Silicon Tuner
        Copyright (C) Manu Abraham (abraham.manu@gmail.com)

        Copyright (C) ST Microelectronics

*/

#ifndef __STB_6100_REG_H
#define __STB_6100_REG_H

#include <linux/dvb/frontend.h>
#include <media/dvb_frontend.h>

#define STB6100_LD                      0x00
#define STB6100_LD_LOCK                 (1 << 0)

#define STB6100_VCO                     0x01
#define STB6100_VCO_OSCH                (0x01 << 7)
#define STB6100_VCO_OSCH_SHIFT          7
#define STB6100_VCO_OCK                 (0x03 << 5)
#define STB6100_VCO_OCK_SHIFT           5
#define STB6100_VCO_ODIV                (0x01 << 4)
#define STB6100_VCO_ODIV_SHIFT          4
#define STB6100_VCO_OSM                 (0x0f << 0)

#define STB6100_NI                      0x02
#define STB6100_NF_LSB                  0x03

#define STB6100_K                       0x04
#define STB6100_K_PSD2                  (0x01 << 2)
#define STB6100_K_PSD2_SHIFT            2
#define STB6100_K_NF_MSB                (0x03 << 0)

#define STB6100_G                       0x05
#define STB6100_G_G                     (0x0f << 0)
#define STB6100_G_GCT                   (0x07 << 5)

#define STB6100_F                       0x06
#define STB6100_F_F                     (0x1f << 0)

#define STB6100_DLB                     0x07

#define STB6100_TEST1                   0x08

#define STB6100_FCCK                    0x09
#define STB6100_FCCK_FCCK               (0x01 << 6)

#define STB6100_LPEN                    0x0a
#define STB6100_LPEN_LPEN               (0x01 << 4)
#define STB6100_LPEN_SYNP               (0x01 << 5)
#define STB6100_LPEN_OSCP               (0x01 << 6)
#define STB6100_LPEN_BEN                (0x01 << 7)

#define STB6100_TEST3                   0x0b

#define STB6100_NUMREGS                 0x0c


#define INRANGE(val, x, y)              (((x <= val) && (val <= y)) ||          \
                                         ((y <= val) && (val <= x)) ? 1 : 0)

#define CHKRANGE(val, x, y)             (((val >= x) && (val < y)) ? 1 : 0)

struct stb6100_config {
        u8      tuner_address;
        u32     refclock;
};

struct stb6100_state {
        struct i2c_adapter *i2c;

        const struct stb6100_config     *config;
        struct dvb_tuner_ops            ops;
        struct dvb_frontend             *frontend;

        u32 frequency;
        u32 srate;
        u32 bandwidth;
        u32 reference;
};

#if IS_REACHABLE(CONFIG_DVB_STB6100)

extern struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
                                           const struct stb6100_config *config,
                                           struct i2c_adapter *i2c);

#else

static inline struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
                                                  const struct stb6100_config *config,
                                                  struct i2c_adapter *i2c)
{
        printk(KERN_WARNING "%s: Driver disabled by Kconfig\n", __func__);
        return NULL;
}

#endif //CONFIG_DVB_STB6100

#endif