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1/*
2 * descriptions for simple tuners.
3 */
4
5#ifndef __TUNER_TYPES_H__
6#define __TUNER_TYPES_H__
7
8enum param_type {
9 TUNER_PARAM_TYPE_RADIO,
10 TUNER_PARAM_TYPE_PAL,
11 TUNER_PARAM_TYPE_SECAM,
12 TUNER_PARAM_TYPE_NTSC,
13 TUNER_PARAM_TYPE_DIGITAL,
14};
15
16struct tuner_range {
17 unsigned short limit;
18 unsigned char config;
19 unsigned char cb;
20};
21
22struct tuner_params {
23 enum param_type type;
24
25 /* Many Philips based tuners have a comment like this in their
26 * datasheet:
27 *
28 * For channel selection involving band switching, and to ensure
29 * smooth tuning to the desired channel without causing
30 * unnecessary charge pump action, it is recommended to consider
31 * the difference between wanted channel frequency and the
32 * current channel frequency. Unnecessary charge pump action
33 * will result in very low tuning voltage which may drive the
34 * oscillator to extreme conditions.
35 *
36 * Set cb_first_if_lower_freq to 1, if this check is
37 * required for this tuner.
38 *
39 * I tested this for PAL by first setting the TV frequency to
40 * 203 MHz and then switching to 96.6 MHz FM radio. The result was
41 * static unless the control byte was sent first.
42 */
43 unsigned int cb_first_if_lower_freq:1;
44 /* Set to 1 if this tuner uses a tda9887 */
45 unsigned int has_tda9887:1;
46 /* Many Philips tuners use tda9887 PORT1 to select the FM radio
47 sensitivity. If this setting is 1, then set PORT1 to 1 to
48 get proper FM reception. */
49 unsigned int port1_fm_high_sensitivity:1;
50 /* Some Philips tuners use tda9887 PORT2 to select the FM radio
51 sensitivity. If this setting is 1, then set PORT2 to 1 to
52 get proper FM reception. */
53 unsigned int port2_fm_high_sensitivity:1;
54 /* Some Philips tuners use tda9887 cGainNormal to select the FM radio
55 sensitivity. If this setting is 1, e register will use cGainNormal
56 instead of cGainLow. */
57 unsigned int fm_gain_normal:1;
58 /* Most tuners with a tda9887 use QSS mode. Some (cheaper) tuners
59 use Intercarrier mode. If this setting is 1, then the tuner
60 needs to be set to intercarrier mode. */
61 unsigned int intercarrier_mode:1;
62 /* This setting sets the default value for PORT1.
63 0 means inactive, 1 means active. Note: the actual bit
64 value written to the tda9887 is inverted. So a 0 here
65 means a 1 in the B6 bit. */
66 unsigned int port1_active:1;
67 /* This setting sets the default value for PORT2.
68 0 means inactive, 1 means active. Note: the actual bit
69 value written to the tda9887 is inverted. So a 0 here
70 means a 1 in the B7 bit. */
71 unsigned int port2_active:1;
72 /* Sometimes PORT1 is inverted when the SECAM-L' standard is selected.
73 Set this bit to 1 if this is needed. */
74 unsigned int port1_invert_for_secam_lc:1;
75 /* Sometimes PORT2 is inverted when the SECAM-L' standard is selected.
76 Set this bit to 1 if this is needed. */
77 unsigned int port2_invert_for_secam_lc:1;
78 /* Some cards require PORT1 to be 1 for mono Radio FM and 0 for stereo. */
79 unsigned int port1_set_for_fm_mono:1;
80 /* Select 18% (or according to datasheet 0%) L standard PLL gating,
81 vs the driver default of 36%. */
82 unsigned int default_pll_gating_18:1;
83 /* IF to use in radio mode. Tuners with a separate radio IF filter
84 seem to use 10.7, while those without use 33.3 for PAL/SECAM tuners
85 and 41.3 for NTSC tuners. 0 = 10.7, 1 = 33.3, 2 = 41.3 */
86 unsigned int radio_if:2;
87 /* Default tda9887 TOP value in dB for the low band. Default is 0.
88 Range: -16:+15 */
89 signed int default_top_low:5;
90 /* Default tda9887 TOP value in dB for the mid band. Default is 0.
91 Range: -16:+15 */
92 signed int default_top_mid:5;
93 /* Default tda9887 TOP value in dB for the high band. Default is 0.
94 Range: -16:+15 */
95 signed int default_top_high:5;
96 /* Default tda9887 TOP value in dB for SECAM-L/L' for the low band.
97 Default is 0. Several tuners require a different TOP value for
98 the SECAM-L/L' standards. Range: -16:+15 */
99 signed int default_top_secam_low:5;
100 /* Default tda9887 TOP value in dB for SECAM-L/L' for the mid band.
101 Default is 0. Several tuners require a different TOP value for
102 the SECAM-L/L' standards. Range: -16:+15 */
103 signed int default_top_secam_mid:5;
104 /* Default tda9887 TOP value in dB for SECAM-L/L' for the high band.
105 Default is 0. Several tuners require a different TOP value for
106 the SECAM-L/L' standards. Range: -16:+15 */
107 signed int default_top_secam_high:5;
108
109 u16 iffreq;
110
111 unsigned int count;
112 struct tuner_range *ranges;
113};
114
115struct tunertype {
116 char *name;
117 unsigned int count;
118 struct tuner_params *params;
119
120 u16 min;
121 u16 max;
122 u32 stepsize;
123
124 u8 *initdata;
125 u8 *sleepdata;
126};
127
128extern struct tunertype tuners[];
129extern unsigned const int tuner_count;
130
131#endif
1/*
2 * descriptions for simple tuners.
3 */
4
5#ifndef __TUNER_TYPES_H__
6#define __TUNER_TYPES_H__
7
8enum param_type {
9 TUNER_PARAM_TYPE_RADIO,
10 TUNER_PARAM_TYPE_PAL,
11 TUNER_PARAM_TYPE_SECAM,
12 TUNER_PARAM_TYPE_NTSC,
13 TUNER_PARAM_TYPE_DIGITAL,
14};
15
16struct tuner_range {
17 unsigned short limit;
18 unsigned char config;
19 unsigned char cb;
20};
21
22struct tuner_params {
23 enum param_type type;
24
25 /* Many Philips based tuners have a comment like this in their
26 * datasheet:
27 *
28 * For channel selection involving band switching, and to ensure
29 * smooth tuning to the desired channel without causing
30 * unnecessary charge pump action, it is recommended to consider
31 * the difference between wanted channel frequency and the
32 * current channel frequency. Unnecessary charge pump action
33 * will result in very low tuning voltage which may drive the
34 * oscillator to extreme conditions.
35 *
36 * Set cb_first_if_lower_freq to 1, if this check is
37 * required for this tuner.
38 *
39 * I tested this for PAL by first setting the TV frequency to
40 * 203 MHz and then switching to 96.6 MHz FM radio. The result was
41 * static unless the control byte was sent first.
42 */
43 unsigned int cb_first_if_lower_freq:1;
44 /* Set to 1 if this tuner uses a tda9887 */
45 unsigned int has_tda9887:1;
46 /* Many Philips tuners use tda9887 PORT1 to select the FM radio
47 sensitivity. If this setting is 1, then set PORT1 to 1 to
48 get proper FM reception. */
49 unsigned int port1_fm_high_sensitivity:1;
50 /* Some Philips tuners use tda9887 PORT2 to select the FM radio
51 sensitivity. If this setting is 1, then set PORT2 to 1 to
52 get proper FM reception. */
53 unsigned int port2_fm_high_sensitivity:1;
54 /* Some Philips tuners use tda9887 cGainNormal to select the FM radio
55 sensitivity. If this setting is 1, e register will use cGainNormal
56 instead of cGainLow. */
57 unsigned int fm_gain_normal:1;
58 /* Most tuners with a tda9887 use QSS mode. Some (cheaper) tuners
59 use Intercarrier mode. If this setting is 1, then the tuner
60 needs to be set to intercarrier mode. */
61 unsigned int intercarrier_mode:1;
62 /* This setting sets the default value for PORT1.
63 0 means inactive, 1 means active. Note: the actual bit
64 value written to the tda9887 is inverted. So a 0 here
65 means a 1 in the B6 bit. */
66 unsigned int port1_active:1;
67 /* This setting sets the default value for PORT2.
68 0 means inactive, 1 means active. Note: the actual bit
69 value written to the tda9887 is inverted. So a 0 here
70 means a 1 in the B7 bit. */
71 unsigned int port2_active:1;
72 /* Sometimes PORT1 is inverted when the SECAM-L' standard is selected.
73 Set this bit to 1 if this is needed. */
74 unsigned int port1_invert_for_secam_lc:1;
75 /* Sometimes PORT2 is inverted when the SECAM-L' standard is selected.
76 Set this bit to 1 if this is needed. */
77 unsigned int port2_invert_for_secam_lc:1;
78 /* Some cards require PORT1 to be 1 for mono Radio FM and 0 for stereo. */
79 unsigned int port1_set_for_fm_mono:1;
80 /* Select 18% (or according to datasheet 0%) L standard PLL gating,
81 vs the driver default of 36%. */
82 unsigned int default_pll_gating_18:1;
83 /* IF to use in radio mode. Tuners with a separate radio IF filter
84 seem to use 10.7, while those without use 33.3 for PAL/SECAM tuners
85 and 41.3 for NTSC tuners. 0 = 10.7, 1 = 33.3, 2 = 41.3 */
86 unsigned int radio_if:2;
87 /* Default tda9887 TOP value in dB for the low band. Default is 0.
88 Range: -16:+15 */
89 signed int default_top_low:5;
90 /* Default tda9887 TOP value in dB for the mid band. Default is 0.
91 Range: -16:+15 */
92 signed int default_top_mid:5;
93 /* Default tda9887 TOP value in dB for the high band. Default is 0.
94 Range: -16:+15 */
95 signed int default_top_high:5;
96 /* Default tda9887 TOP value in dB for SECAM-L/L' for the low band.
97 Default is 0. Several tuners require a different TOP value for
98 the SECAM-L/L' standards. Range: -16:+15 */
99 signed int default_top_secam_low:5;
100 /* Default tda9887 TOP value in dB for SECAM-L/L' for the mid band.
101 Default is 0. Several tuners require a different TOP value for
102 the SECAM-L/L' standards. Range: -16:+15 */
103 signed int default_top_secam_mid:5;
104 /* Default tda9887 TOP value in dB for SECAM-L/L' for the high band.
105 Default is 0. Several tuners require a different TOP value for
106 the SECAM-L/L' standards. Range: -16:+15 */
107 signed int default_top_secam_high:5;
108
109 u16 iffreq;
110
111 unsigned int count;
112 struct tuner_range *ranges;
113};
114
115struct tunertype {
116 char *name;
117 unsigned int count;
118 struct tuner_params *params;
119
120 u16 min;
121 u16 max;
122 u32 stepsize;
123
124 u8 *initdata;
125 u8 *sleepdata;
126};
127
128extern struct tunertype tuners[];
129extern unsigned const int tuner_count;
130
131#endif