/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * tuner.h - definition for different tuners * * Copyright (C) 1997 Markus Schroeder (schroedm@uni-duesseldorf.de) * minor modifications by Ralph Metzler (rjkm@thp.uni-koeln.de)
*/
#define TUNER_PHILIPS_4IN1 44 /* ATI TV Wonder Pro - Conexant */ /* * Microtune merged with Temic 12/31/1999 partially financed by Alps. * these may be similar to Temic
*/ #define TUNER_MICROTUNE_4049FM5 45 #define TUNER_PANASONIC_VP27 46 #define TUNER_LG_NTSC_TAPE 47
/** * enum tuner_mode - Mode of the tuner * * @T_RADIO: Tuner core will work in radio mode * @T_ANALOG_TV: Tuner core will work in analog TV mode * * Older boards only had a single tuner device, but some devices have a * separate tuner for radio. In any case, the tuner-core needs to know if * the tuner chip(s) will be used in radio mode or analog TV mode, as, on * radio mode, frequencies are specified on a different range than on TV * mode. This enum is used by the tuner core in order to work with the * proper tuner range and eventually use a different tuner chip while in * radio mode.
*/ enum tuner_mode {
T_RADIO = 1 << V4L2_TUNER_RADIO,
T_ANALOG_TV = 1 << V4L2_TUNER_ANALOG_TV, /* Don't map V4L2_TUNER_DIGITAL_TV, as tuner-core won't use it */
};
/** * struct tuner_setup - setup the tuner chipsets * * @addr: I2C address used to control the tuner device/chipset * @type: Type of the tuner, as defined at the TUNER_* macros. * Each different tuner model should have an unique * identifier. * @mode_mask: Mask with the allowed tuner modes: V4L2_TUNER_RADIO, * V4L2_TUNER_ANALOG_TV and/or V4L2_TUNER_DIGITAL_TV, * describing if the tuner should be used to support * Radio, analog TV and/or digital TV. * @config: Used to send tuner-specific configuration for complex * tuners that require extra parameters to be set. * Only a very few tuners require it and its usage on * newer tuners should be avoided. * @tuner_callback: Some tuners require to call back the bridge driver, * in order to do some tasks like rising a GPIO at the * bridge chipset, in order to do things like resetting * the device. * * Older boards only had a single tuner device. Nowadays multiple tuner * devices may be present on a single board. Using TUNER_SET_TYPE_ADDR * to pass the tuner_setup structure it is possible to setup each tuner * device in turn. * * Since multiple devices may be present it is no longer sufficient to * send a command to a single i2c device. Instead you should broadcast * the command to all i2c devices. * * By setting the mode_mask correctly you can select which commands are * accepted by a specific tuner device. For example, set mode_mask to * T_RADIO if the device is a radio-only tuner. That specific tuner will * only accept commands when the tuner is in radio mode and ignore them * when the tuner is set to TV mode.
*/
struct tuner_setup { unsignedshort addr; unsignedint type; unsignedint mode_mask; void *config; int (*tuner_callback)(void *dev, int component, int cmd, int arg);
};
#endif/* __KERNEL__ */
#endif/* _TUNER_H */
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