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7b0ac9cd MK |
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, | |
7b0ac9cd MK |
14 | }; |
15 | ||
16 | struct tuner_range { | |
17 | unsigned short limit; | |
3fc46d35 | 18 | unsigned char config; |
7b0ac9cd MK |
19 | unsigned char cb; |
20 | }; | |
21 | ||
22 | struct tuner_params { | |
23 | enum param_type type; | |
ba8fc399 | 24 | |
27487d44 HV |
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 | * | |
de03d21b | 36 | * Set cb_first_if_lower_freq to 1, if this check is |
01872c5d | 37 | * required for this tuner. |
27487d44 HV |
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; | |
ba8fc399 HV |
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; | |
483deb0f MCC |
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; | |
ba8fc399 HV |
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; | |
d7304dee TP |
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; | |
5e082f15 TP |
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; | |
ba8fc399 HV |
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 | ||
62325497 | 109 | u16 iffreq; |
7b0ac9cd MK |
110 | |
111 | unsigned int count; | |
112 | struct tuner_range *ranges; | |
113 | }; | |
114 | ||
115 | struct tunertype { | |
116 | char *name; | |
bbab6fd8 | 117 | unsigned int count; |
7b0ac9cd | 118 | struct tuner_params *params; |
62325497 MK |
119 | |
120 | u16 min; | |
121 | u16 max; | |
122 | u16 stepsize; | |
6f4a5729 MK |
123 | |
124 | u8 *initdata; | |
125 | u8 *sleepdata; | |
7b0ac9cd MK |
126 | }; |
127 | ||
128 | extern struct tunertype tuners[]; | |
129 | extern unsigned const int tuner_count; | |
130 | ||
131 | #endif |