1/*
2 * Infineon TUA 9001 silicon tuner driver
3 *
4 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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 *    GNU General Public License for more details.
15 *
16 *    You should have received a copy of the GNU General Public License along
17 *    with this program; if not, write to the Free Software Foundation, Inc.,
18 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21#ifndef TUA9001_H
22#define TUA9001_H
23
24#include <linux/kconfig.h>
25#include "dvb_frontend.h"
26
27struct tua9001_config {
28	/*
29	 * I2C address
30	 */
31	u8 i2c_addr;
32};
33
34/*
35 * TUA9001 I/O PINs:
36 *
37 * CEN - chip enable
38 * 0 = chip disabled (chip off)
39 * 1 = chip enabled (chip on)
40 *
41 * RESETN - chip reset
42 * 0 = reset disabled (chip reset off)
43 * 1 = reset enabled (chip reset on)
44 *
45 * RXEN - RX enable
46 * 0 = RX disabled (chip idle)
47 * 1 = RX enabled (chip tuned)
48 */
49
50#define TUA9001_CMD_CEN     0
51#define TUA9001_CMD_RESETN  1
52#define TUA9001_CMD_RXEN    2
53
54#if IS_ENABLED(CONFIG_MEDIA_TUNER_TUA9001)
55extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
56		struct i2c_adapter *i2c, struct tua9001_config *cfg);
57#else
58static inline struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
59		struct i2c_adapter *i2c, struct tua9001_config *cfg)
60{
61	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
62	return NULL;
63}
64#endif
65
66#endif
67