rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" |
| 3 | * |
| 4 | * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * |
| 15 | * GNU General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | #ifndef __XC5000_H__ |
| 19 | #define __XC5000_H__ |
| 20 | |
| 21 | #include <linux/firmware.h> |
| 22 | |
| 23 | struct dvb_frontend; |
| 24 | struct i2c_adapter; |
| 25 | |
| 26 | #define XC5000A 1 |
| 27 | #define XC5000C 2 |
| 28 | |
| 29 | struct xc5000_config { |
| 30 | u8 i2c_address; |
| 31 | u32 if_khz; |
| 32 | u8 radio_input; |
| 33 | u16 xtal_khz; |
| 34 | u16 output_amp; |
| 35 | |
| 36 | int chip_id; |
| 37 | }; |
| 38 | |
| 39 | /* xc5000 callback command */ |
| 40 | #define XC5000_TUNER_RESET 0 |
| 41 | |
| 42 | /* Possible Radio inputs */ |
| 43 | #define XC5000_RADIO_NOT_CONFIGURED 0 |
| 44 | #define XC5000_RADIO_FM1 1 |
| 45 | #define XC5000_RADIO_FM2 2 |
| 46 | #define XC5000_RADIO_FM1_MONO 3 |
| 47 | |
| 48 | /* For each bridge framework, when it attaches either analog or digital, |
| 49 | * it has to store a reference back to its _core equivalent structure, |
| 50 | * so that it can service the hardware by steering gpio's etc. |
| 51 | * Each bridge implementation is different so cast devptr accordingly. |
| 52 | * The xc5000 driver cares not for this value, other than ensuring |
| 53 | * it's passed back to a bridge during tuner_callback(). |
| 54 | */ |
| 55 | |
| 56 | #if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC5000) |
| 57 | extern struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, |
| 58 | struct i2c_adapter *i2c, |
| 59 | const struct xc5000_config *cfg); |
| 60 | #else |
| 61 | static inline struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, |
| 62 | struct i2c_adapter *i2c, |
| 63 | const struct xc5000_config *cfg) |
| 64 | { |
| 65 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| 66 | return NULL; |
| 67 | } |
| 68 | #endif |
| 69 | |
| 70 | #endif |