diff options
Diffstat (limited to 'kernel/drivers/media/tuners/tua9001.h')
| -rw-r--r-- | kernel/drivers/media/tuners/tua9001.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/kernel/drivers/media/tuners/tua9001.h b/kernel/drivers/media/tuners/tua9001.h new file mode 100644 index 000000000..2c3375c7a --- /dev/null +++ b/kernel/drivers/media/tuners/tua9001.h @@ -0,0 +1,66 @@ +/* + * Infineon TUA 9001 silicon tuner driver + * + * Copyright (C) 2009 Antti Palosaari <crope@iki.fi> + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef TUA9001_H +#define TUA9001_H + +#include <linux/kconfig.h> +#include "dvb_frontend.h" + +struct tua9001_config { + /* + * I2C address + */ + u8 i2c_addr; +}; + +/* + * TUA9001 I/O PINs: + * + * CEN - chip enable + * 0 = chip disabled (chip off) + * 1 = chip enabled (chip on) + * + * RESETN - chip reset + * 0 = reset disabled (chip reset off) + * 1 = reset enabled (chip reset on) + * + * RXEN - RX enable + * 0 = RX disabled (chip idle) + * 1 = RX enabled (chip tuned) + */ + +#define TUA9001_CMD_CEN 0 +#define TUA9001_CMD_RESETN 1 +#define TUA9001_CMD_RXEN 2 + +#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TUA9001) +extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, struct tua9001_config *cfg); +#else +static inline struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, struct tua9001_config *cfg) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif |