[linux-2.6-block.git] / include / media / tuner-types.h

/*
 * 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;
	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
Commit	Line	Data
7b0ac9cd MK	1	/*
	2	* descriptions for simple tuners.
	3	*/
	4
	5	#ifndef __TUNER_TYPES_H__
	6	#define __TUNER_TYPES_H__
	7
5057f326 MCC	8	/**
	9	* enum param_type - type of the tuner pameters
	10	*
	11	* @TUNER_PARAM_TYPE_RADIO: Tuner params are for FM and/or AM radio
	12	* @TUNER_PARAM_TYPE_PAL: Tuner params are for PAL color TV standard
	13	* @TUNER_PARAM_TYPE_SECAM: Tuner params are for SECAM color TV standard
	14	* @TUNER_PARAM_TYPE_NTSC: Tuner params are for NTSC color TV standard
	15	* @TUNER_PARAM_TYPE_DIGITAL: Tuner params are for digital TV
	16	*/
7b0ac9cd	17	enum param_type {
62325497 MK	18	TUNER_PARAM_TYPE_RADIO,
	19	TUNER_PARAM_TYPE_PAL,
	20	TUNER_PARAM_TYPE_SECAM,
	21	TUNER_PARAM_TYPE_NTSC,
	22	TUNER_PARAM_TYPE_DIGITAL,
7b0ac9cd MK	23	};
7b0ac9cd MK	24
5057f326 MCC	25	/**
	26	* struct tuner_range - define the frequencies supported by the tuner
	27	*
	28	* @limit: Max frequency supported by that range, in 62.5 kHz
	29	* (TV) or 62.5 Hz (Radio), as defined by
	30	* V4L2_TUNER_CAP_LOW.
	31	* @config: Value of the band switch byte (BB) to setup this mode.
	32	* @cb: Value of the CB byte to setup this mode.
	33	*
	34	* Please notice that digital tuners like xc3028/xc4000/xc5000 don't use
	35	* those ranges, as they're defined inside the driver. This is used by
	36	* analog tuners that are compatible with the "Philips way" to setup the
	37	* tuners. On those devices, the tuner set is done via 4 bytes:
	38	* divider byte1 (DB1), divider byte 2 (DB2), Control byte (CB) and
	39	* band switch byte (BB).
	40	* Some tuners also have an additional optional Auxiliary byte (AB).
	41	*/
7b0ac9cd MK	42	struct tuner_range {
7b0ac9cd MK	43	unsigned short limit;
3fc46d35	44	unsigned char config;
7b0ac9cd MK	45	unsigned char cb;
	46	};
	47
65fc6409 MCC	48	/**
	49	* struct tuner_params - Parameters to be used to setup the tuner. Those
	50	* are used by drivers/media/tuners/tuner-types.c in
	51	* order to specify the tuner properties. Most of
	52	* the parameters are for tuners based on tda9887 IF-PLL
	53	* multi-standard analog TV/Radio demodulator, with is
	54	* very common on legacy analog tuners.
	55	*
	56	* @type: Type of the tuner parameters, as defined at
	57	* enum param_type. If the tuner supports multiple
	58	* standards, an array should be used, with one
	59	* row per different standard.
	60	* @cb_first_if_lower_freq: Many Philips-based tuners have a comment in
	61	* their datasheet like
	62	* "For channel selection involving band
	63	* switching, and to ensure smooth tuning to the
	64	* desired channel without causing unnecessary
	65	* charge pump action, it is recommended to
	66	* consider the difference between wanted channel
	67	* frequency and the current channel frequency.
	68	* Unnecessary charge pump action will result
	69	* in very low tuning voltage which may drive the
	70	* oscillator to extreme conditions".
	71	* Set cb_first_if_lower_freq to 1, if this check
	72	* is required for this tuner. I tested this for
	73	* PAL by first setting the TV frequency to
	74	* 203 MHz and then switching to 96.6 MHz FM
	75	* radio. The result was static unless the
	76	* control byte was sent first.
	77	* @has_tda9887: Set to 1 if this tuner uses a tda9887
	78	* @port1_fm_high_sensitivity: Many Philips tuners use tda9887 PORT1 to select
	79	* the FM radio sensitivity. If this setting is 1,
	80	* then set PORT1 to 1 to get proper FM reception.
	81	* @port2_fm_high_sensitivity: Some Philips tuners use tda9887 PORT2 to select
	82	* the FM radio sensitivity. If this setting is 1,
	83	* then set PORT2 to 1 to get proper FM reception.
	84	* @fm_gain_normal: Some Philips tuners use tda9887 cGainNormal to
	85	* select the FM radio sensitivity. If this
	86	* setting is 1, e register will use cGainNormal
	87	* instead of cGainLow.
	88	* @intercarrier_mode: Most tuners with a tda9887 use QSS mode.
	89	* Some (cheaper) tuners use Intercarrier mode.
	90	* If this setting is 1, then the tuner needs to
	91	* be set to intercarrier mode.
	92	* @port1_active: This setting sets the default value for PORT1.
	93	* 0 means inactive, 1 means active. Note: the
	94	* actual bit value written to the tda9887 is
	95	* inverted. So a 0 here means a 1 in the B6 bit.
	96	* @port2_active: This setting sets the default value for PORT2.
	97	* 0 means inactive, 1 means active. Note: the
	98	* actual bit value written to the tda9887 is
	99	* inverted. So a 0 here means a 1 in the B7 bit.
	100	* @port1_invert_for_secam_lc: Sometimes PORT1 is inverted when the SECAM-L'
	101	* standard is selected. Set this bit to 1 if this
	102	* is needed.
	103	* @port2_invert_for_secam_lc: Sometimes PORT2 is inverted when the SECAM-L'
	104	* standard is selected. Set this bit to 1 if this
	105	* is needed.
	106	* @port1_set_for_fm_mono: Some cards require PORT1 to be 1 for mono Radio
	107	* FM and 0 for stereo.
	108	* @default_pll_gating_18: Select 18% (or according to datasheet 0%)
	109	* L standard PLL gating, vs the driver default
	110	* of 36%.
	111	* @radio_if: IF to use in radio mode. Tuners with a
112	* separate radio IF filter seem to use 10.7,
113	* while those without use 33.3 for PAL/SECAM
114	* tuners and 41.3 for NTSC tuners.
115	* 0 = 10.7, 1 = 33.3, 2 = 41.3
116	* @default_top_low: Default tda9887 TOP value in dB for the low
117	* band. Default is 0. Range: -16:+15
118	* @default_top_mid: Default tda9887 TOP value in dB for the mid
119	* band. Default is 0. Range: -16:+15
120	* @default_top_high: Default tda9887 TOP value in dB for the high
121	* band. Default is 0. Range: -16:+15
122	* @default_top_secam_low: Default tda9887 TOP value in dB for SECAM-L/L'
123	* for the low band. Default is 0. Several tuners
124	* require a different TOP value for the
125	* SECAM-L/L' standards. Range: -16:+15
126	* @default_top_secam_mid: Default tda9887 TOP value in dB for SECAM-L/L'
127	* for the mid band. Default is 0. Several tuners
128	* require a different TOP value for the
129	* SECAM-L/L' standards. Range: -16:+15
130	* @default_top_secam_high: Default tda9887 TOP value in dB for SECAM-L/L'
131	* for the high band. Default is 0. Several tuners
132	* require a different TOP value for the
133	* SECAM-L/L' standards. Range: -16:+15
134	* @iffreq: Intermediate frequency (IF) used by the tuner
135	* on digital mode.
136	* @count: Size of the ranges array.
137	* @ranges: Array with the frequency ranges supported by
138	* the tuner.
139	*/
7b0ac9cd MK	140	struct tuner_params {
7b0ac9cd MK	141	enum param_type type;
ba8fc399	142
27487d44	143	unsigned int cb_first_if_lower_freq:1;
ba8fc399	144	unsigned int has_tda9887:1;
ba8fc399	145	unsigned int port1_fm_high_sensitivity:1;
ba8fc399	146	unsigned int port2_fm_high_sensitivity:1;
483deb0f	147	unsigned int fm_gain_normal:1;
ba8fc399	148	unsigned int intercarrier_mode:1;
ba8fc399	149	unsigned int port1_active:1;
ba8fc399	150	unsigned int port2_active:1;
ba8fc399	151	unsigned int port1_invert_for_secam_lc:1;
ba8fc399	152	unsigned int port2_invert_for_secam_lc:1;
ba8fc399	153	unsigned int port1_set_for_fm_mono:1;
d7304dee	154	unsigned int default_pll_gating_18:1;
5e082f15	155	unsigned int radio_if:2;
ba8fc399	156	signed int default_top_low:5;
ba8fc399	157	signed int default_top_mid:5;
ba8fc399	158	signed int default_top_high:5;
ba8fc399	159	signed int default_top_secam_low:5;
ba8fc399	160	signed int default_top_secam_mid:5;
ba8fc399 HV	161	signed int default_top_secam_high:5;
ba8fc399 HV	162
62325497	163	u16 iffreq;
7b0ac9cd MK	164
	165	unsigned int count;
	166	struct tuner_range *ranges;
	167	};
	168
	169	struct tunertype {
	170	char *name;
bbab6fd8	171	unsigned int count;
7b0ac9cd	172	struct tuner_params *params;
62325497 MK	173
	174	u16 min;
	175	u16 max;
23a88108	176	u32 stepsize;
6f4a5729 MK	177
	178	u8 *initdata;
	179	u8 *sleepdata;
7b0ac9cd MK	180	};
	181
	182	extern struct tunertype tuners[];
	183	extern unsigned const int tuner_count;
	184
	185	#endif