linux/include/media/tuner-types.h

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/*
* descriptions for simple tuners.
*/
#ifndef __TUNER_TYPES_H__
#define __TUNER_TYPES_H__
/**
* enum param_type - type of the tuner pameters
*
* @TUNER_PARAM_TYPE_RADIO: Tuner params are for FM and/or AM radio
* @TUNER_PARAM_TYPE_PAL: Tuner params are for PAL color TV standard
* @TUNER_PARAM_TYPE_SECAM: Tuner params are for SECAM color TV standard
* @TUNER_PARAM_TYPE_NTSC: Tuner params are for NTSC color TV standard
* @TUNER_PARAM_TYPE_DIGITAL: Tuner params are for digital TV
*/
enum param_type {
TUNER_PARAM_TYPE_RADIO,
TUNER_PARAM_TYPE_PAL,
TUNER_PARAM_TYPE_SECAM,
TUNER_PARAM_TYPE_NTSC,
TUNER_PARAM_TYPE_DIGITAL,
};
/**
* struct tuner_range - define the frequencies supported by the tuner
*
* @limit: Max frequency supported by that range, in 62.5 kHz
* (TV) or 62.5 Hz (Radio), as defined by
* V4L2_TUNER_CAP_LOW.
* @config: Value of the band switch byte (BB) to setup this mode.
* @cb: Value of the CB byte to setup this mode.
*
* Please notice that digital tuners like xc3028/xc4000/xc5000 don't use
* those ranges, as they're defined inside the driver. This is used by
* analog tuners that are compatible with the "Philips way" to setup the
* tuners. On those devices, the tuner set is done via 4 bytes:
* divider byte1 (DB1), divider byte 2 (DB2), Control byte (CB) and
* band switch byte (BB).
* Some tuners also have an additional optional Auxiliary byte (AB).
*/
struct tuner_range {
unsigned short limit;
unsigned char config;
unsigned char cb;
};
/**
* struct tuner_params - Parameters to be used to setup the tuner. Those
* are used by drivers/media/tuners/tuner-types.c in
* order to specify the tuner properties. Most of
* the parameters are for tuners based on tda9887 IF-PLL
* multi-standard analog TV/Radio demodulator, with is
* very common on legacy analog tuners.
*
* @type: Type of the tuner parameters, as defined at
* enum param_type. If the tuner supports multiple
* standards, an array should be used, with one
* row per different standard.
* @cb_first_if_lower_freq: Many Philips-based tuners have a comment in
* their datasheet like
* "For channel selection involving band
* switching, and to ensure smooth tuning to the
* desired channel without causing unnecessary
* charge pump action, it is recommended to
* consider the difference between wanted channel
* frequency and the current channel frequency.
* Unnecessary charge pump action will result
* in very low tuning voltage which may drive the
* oscillator to extreme conditions".
* Set cb_first_if_lower_freq to 1, if this check
* is required for this tuner. I tested this for
* PAL by first setting the TV frequency to
* 203 MHz and then switching to 96.6 MHz FM
* radio. The result was static unless the
* control byte was sent first.
* @has_tda9887: Set to 1 if this tuner uses a tda9887
* @port1_fm_high_sensitivity: Many Philips tuners use tda9887 PORT1 to select
* the FM radio sensitivity. If this setting is 1,
* then set PORT1 to 1 to get proper FM reception.
* @port2_fm_high_sensitivity: Some Philips tuners use tda9887 PORT2 to select
* the FM radio sensitivity. If this setting is 1,
* then set PORT2 to 1 to get proper FM reception.
* @fm_gain_normal: Some Philips tuners use tda9887 cGainNormal to
* select the FM radio sensitivity. If this
* setting is 1, e register will use cGainNormal
* instead of cGainLow.
* @intercarrier_mode: Most tuners with a tda9887 use QSS mode.
* Some (cheaper) tuners use Intercarrier mode.
* If this setting is 1, then the tuner needs to
* be set to intercarrier mode.
* @port1_active: This setting sets the default value for PORT1.
* 0 means inactive, 1 means active. Note: the
* actual bit value written to the tda9887 is
* inverted. So a 0 here means a 1 in the B6 bit.
* @port2_active: This setting sets the default value for PORT2.
* 0 means inactive, 1 means active. Note: the
* actual bit value written to the tda9887 is
* inverted. So a 0 here means a 1 in the B7 bit.
* @port1_invert_for_secam_lc: Sometimes PORT1 is inverted when the SECAM-L'
* standard is selected. Set this bit to 1 if this
* is needed.
* @port2_invert_for_secam_lc: Sometimes PORT2 is inverted when the SECAM-L'
* standard is selected. Set this bit to 1 if this
* is needed.
* @port1_set_for_fm_mono: Some cards require PORT1 to be 1 for mono Radio
* FM and 0 for stereo.
* @default_pll_gating_18: Select 18% (or according to datasheet 0%)
* L standard PLL gating, vs the driver default
* of 36%.
* @radio_if: IF to use in radio mode. Tuners with a
* separate radio IF filter seem to use 10.7,
* while those without use 33.3 for PAL/SECAM
* tuners and 41.3 for NTSC tuners.
* 0 = 10.7, 1 = 33.3, 2 = 41.3
* @default_top_low: Default tda9887 TOP value in dB for the low
* band. Default is 0. Range: -16:+15
* @default_top_mid: Default tda9887 TOP value in dB for the mid
* band. Default is 0. Range: -16:+15
* @default_top_high: Default tda9887 TOP value in dB for the high
* band. Default is 0. Range: -16:+15
* @default_top_secam_low: Default tda9887 TOP value in dB for SECAM-L/L'
* for the low band. Default is 0. Several tuners
* require a different TOP value for the
* SECAM-L/L' standards. Range: -16:+15
* @default_top_secam_mid: Default tda9887 TOP value in dB for SECAM-L/L'
* for the mid band. Default is 0. Several tuners
* require a different TOP value for the
* SECAM-L/L' standards. Range: -16:+15
* @default_top_secam_high: Default tda9887 TOP value in dB for SECAM-L/L'
* for the high band. Default is 0. Several tuners
* require a different TOP value for the
* SECAM-L/L' standards. Range: -16:+15
* @iffreq: Intermediate frequency (IF) used by the tuner
* on digital mode.
* @count: Size of the ranges array.
* @ranges: Array with the frequency ranges supported by
* the tuner.
*/
struct tuner_params {
enum param_type type;
unsigned int cb_first_if_lower_freq:1;
unsigned int has_tda9887:1;
unsigned int port1_fm_high_sensitivity:1;
unsigned int port2_fm_high_sensitivity:1;
unsigned int fm_gain_normal:1;
unsigned int intercarrier_mode:1;
unsigned int port1_active:1;
unsigned int port2_active:1;
unsigned int port1_invert_for_secam_lc:1;
unsigned int port2_invert_for_secam_lc:1;
unsigned int port1_set_for_fm_mono:1;
unsigned int default_pll_gating_18:1;
V4L/DVB (5978): tuner: Better tuner radio support Add radio support for the Thomson DTT7612 tuner. This tuner uses a different 1st intermediate frequency than the other radio tuners supported (a lot of NTSC radio tuners probably need this change too). Add a new tuner-simple parameter, radio_if. It selects the 1st IF used for radio reception. The radio frequency setting code in tuner-simple now uses this field, instead of a special case select() block for each tuner with radio support. The tuner parameters for tuners that used a 33.3 MHz RIF now set radio_if to 1 in tuner-types.c. The Thomson DTT7612 gets radio_if = 2, also add has_tda9887 = 1 and fm_gain_normal = 1. Add some defines for tda9887 bits that control IF setting in radio mode. Add a new tda9887 config option, TDA9887_RIF_41_3, that selects a 41.3 MHz radio IF. Fix the way tda9887 radio options work. The driver was modifying the default radio mode config templates based on the TDA9887_XXXX flags. This means that _all_ tuners would get the same settings. If you had a one tuner than used TDA9887_GAIN_NORMAL and one that didn't, both would get the setting. Now the tda9987 driver just checks if tuner mode is radio and then applies the config settings directly to the data being sent, just like how all the TV mode settings already work. The PLL setting math is made a little more accurate. And a grammar error in a printk is fixed. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-08-03 21:32:38 +00:00
unsigned int radio_if:2;
signed int default_top_low:5;
signed int default_top_mid:5;
signed int default_top_high:5;
signed int default_top_secam_low:5;
signed int default_top_secam_mid:5;
signed int default_top_secam_high:5;
u16 iffreq;
unsigned int count;
struct tuner_range *ranges;
};
struct tunertype {
char *name;
unsigned int count;
struct tuner_params *params;
u16 min;
u16 max;
u32 stepsize;
u8 *initdata;
u8 *sleepdata;
};
extern struct tunertype tuners[];
extern unsigned const int tuner_count;
#endif