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1 | /* |
2 | * descriptions for simple tuners. | |
3 | */ | |
4 | ||
5 | #ifndef __TUNER_TYPES_H__ | |
6 | #define __TUNER_TYPES_H__ | |
7 | ||
8 | enum param_type { | |
62325497 MK |
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, | |
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14 | }; |
15 | ||
16 | struct tuner_range { | |
17 | unsigned short limit; | |
3fc46d35 | 18 | unsigned char config; |
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19 | unsigned char cb; |
20 | }; | |
21 | ||
65fc6409 MCC |
22 | /** |
23 | * struct tuner_params - Parameters to be used to setup the tuner. Those | |
24 | * are used by drivers/media/tuners/tuner-types.c in | |
25 | * order to specify the tuner properties. Most of | |
26 | * the parameters are for tuners based on tda9887 IF-PLL | |
27 | * multi-standard analog TV/Radio demodulator, with is | |
28 | * very common on legacy analog tuners. | |
29 | * | |
30 | * @type: Type of the tuner parameters, as defined at | |
31 | * enum param_type. If the tuner supports multiple | |
32 | * standards, an array should be used, with one | |
33 | * row per different standard. | |
34 | * @cb_first_if_lower_freq: Many Philips-based tuners have a comment in | |
35 | * their datasheet like | |
36 | * "For channel selection involving band | |
37 | * switching, and to ensure smooth tuning to the | |
38 | * desired channel without causing unnecessary | |
39 | * charge pump action, it is recommended to | |
40 | * consider the difference between wanted channel | |
41 | * frequency and the current channel frequency. | |
42 | * Unnecessary charge pump action will result | |
43 | * in very low tuning voltage which may drive the | |
44 | * oscillator to extreme conditions". | |
45 | * Set cb_first_if_lower_freq to 1, if this check | |
46 | * is required for this tuner. I tested this for | |
47 | * PAL by first setting the TV frequency to | |
48 | * 203 MHz and then switching to 96.6 MHz FM | |
49 | * radio. The result was static unless the | |
50 | * control byte was sent first. | |
51 | * @has_tda9887: Set to 1 if this tuner uses a tda9887 | |
52 | * @port1_fm_high_sensitivity: Many Philips tuners use tda9887 PORT1 to select | |
53 | * the FM radio sensitivity. If this setting is 1, | |
54 | * then set PORT1 to 1 to get proper FM reception. | |
55 | * @port2_fm_high_sensitivity: Some Philips tuners use tda9887 PORT2 to select | |
56 | * the FM radio sensitivity. If this setting is 1, | |
57 | * then set PORT2 to 1 to get proper FM reception. | |
58 | * @fm_gain_normal: Some Philips tuners use tda9887 cGainNormal to | |
59 | * select the FM radio sensitivity. If this | |
60 | * setting is 1, e register will use cGainNormal | |
61 | * instead of cGainLow. | |
62 | * @intercarrier_mode: Most tuners with a tda9887 use QSS mode. | |
63 | * Some (cheaper) tuners use Intercarrier mode. | |
64 | * If this setting is 1, then the tuner needs to | |
65 | * be set to intercarrier mode. | |
66 | * @port1_active: This setting sets the default value for PORT1. | |
67 | * 0 means inactive, 1 means active. Note: the | |
68 | * actual bit value written to the tda9887 is | |
69 | * inverted. So a 0 here means a 1 in the B6 bit. | |
70 | * @port2_active: This setting sets the default value for PORT2. | |
71 | * 0 means inactive, 1 means active. Note: the | |
72 | * actual bit value written to the tda9887 is | |
73 | * inverted. So a 0 here means a 1 in the B7 bit. | |
74 | * @port1_invert_for_secam_lc: Sometimes PORT1 is inverted when the SECAM-L' | |
75 | * standard is selected. Set this bit to 1 if this | |
76 | * is needed. | |
77 | * @port2_invert_for_secam_lc: Sometimes PORT2 is inverted when the SECAM-L' | |
78 | * standard is selected. Set this bit to 1 if this | |
79 | * is needed. | |
80 | * @port1_set_for_fm_mono: Some cards require PORT1 to be 1 for mono Radio | |
81 | * FM and 0 for stereo. | |
82 | * @default_pll_gating_18: Select 18% (or according to datasheet 0%) | |
83 | * L standard PLL gating, vs the driver default | |
84 | * of 36%. | |
85 | * @radio_if: IF to use in radio mode. Tuners with a | |
86 | * separate radio IF filter seem to use 10.7, | |
87 | * while those without use 33.3 for PAL/SECAM | |
88 | * tuners and 41.3 for NTSC tuners. | |
89 | * 0 = 10.7, 1 = 33.3, 2 = 41.3 | |
90 | * @default_top_low: Default tda9887 TOP value in dB for the low | |
91 | * band. Default is 0. Range: -16:+15 | |
92 | * @default_top_mid: Default tda9887 TOP value in dB for the mid | |
93 | * band. Default is 0. Range: -16:+15 | |
94 | * @default_top_high: Default tda9887 TOP value in dB for the high | |
95 | * band. Default is 0. Range: -16:+15 | |
96 | * @default_top_secam_low: Default tda9887 TOP value in dB for SECAM-L/L' | |
97 | * for the low band. Default is 0. Several tuners | |
98 | * require a different TOP value for the | |
99 | * SECAM-L/L' standards. Range: -16:+15 | |
100 | * @default_top_secam_mid: Default tda9887 TOP value in dB for SECAM-L/L' | |
101 | * for the mid band. Default is 0. Several tuners | |
102 | * require a different TOP value for the | |
103 | * SECAM-L/L' standards. Range: -16:+15 | |
104 | * @default_top_secam_high: Default tda9887 TOP value in dB for SECAM-L/L' | |
105 | * for the high band. Default is 0. Several tuners | |
106 | * require a different TOP value for the | |
107 | * SECAM-L/L' standards. Range: -16:+15 | |
108 | * @iffreq: Intermediate frequency (IF) used by the tuner | |
109 | * on digital mode. | |
110 | * @count: Size of the ranges array. | |
111 | * @ranges: Array with the frequency ranges supported by | |
112 | * the tuner. | |
113 | */ | |
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114 | struct tuner_params { |
115 | enum param_type type; | |
ba8fc399 | 116 | |
27487d44 | 117 | unsigned int cb_first_if_lower_freq:1; |
ba8fc399 | 118 | unsigned int has_tda9887:1; |
ba8fc399 | 119 | unsigned int port1_fm_high_sensitivity:1; |
ba8fc399 | 120 | unsigned int port2_fm_high_sensitivity:1; |
483deb0f | 121 | unsigned int fm_gain_normal:1; |
ba8fc399 | 122 | unsigned int intercarrier_mode:1; |
ba8fc399 | 123 | unsigned int port1_active:1; |
ba8fc399 | 124 | unsigned int port2_active:1; |
ba8fc399 | 125 | unsigned int port1_invert_for_secam_lc:1; |
ba8fc399 | 126 | unsigned int port2_invert_for_secam_lc:1; |
ba8fc399 | 127 | unsigned int port1_set_for_fm_mono:1; |
d7304dee | 128 | unsigned int default_pll_gating_18:1; |
5e082f15 | 129 | unsigned int radio_if:2; |
ba8fc399 | 130 | signed int default_top_low:5; |
ba8fc399 | 131 | signed int default_top_mid:5; |
ba8fc399 | 132 | signed int default_top_high:5; |
ba8fc399 | 133 | signed int default_top_secam_low:5; |
ba8fc399 | 134 | signed int default_top_secam_mid:5; |
ba8fc399 HV |
135 | signed int default_top_secam_high:5; |
136 | ||
62325497 | 137 | u16 iffreq; |
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138 | |
139 | unsigned int count; | |
140 | struct tuner_range *ranges; | |
141 | }; | |
142 | ||
143 | struct tunertype { | |
144 | char *name; | |
bbab6fd8 | 145 | unsigned int count; |
7b0ac9cd | 146 | struct tuner_params *params; |
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147 | |
148 | u16 min; | |
149 | u16 max; | |
23a88108 | 150 | u32 stepsize; |
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151 | |
152 | u8 *initdata; | |
153 | u8 *sleepdata; | |
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154 | }; |
155 | ||
156 | extern struct tunertype tuners[]; | |
157 | extern unsigned const int tuner_count; | |
158 | ||
159 | #endif |