1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | Driver for Philips tda1004xh OFDM Frontend |
4 | |
5 | (c) 2004 Andrew de Quincey |
6 | |
7 | |
8 | */ |
9 | |
10 | #ifndef TDA1004X_H |
11 | #define TDA1004X_H |
12 | |
13 | #include <linux/dvb/frontend.h> |
14 | #include <linux/firmware.h> |
15 | |
16 | enum tda10046_xtal { |
17 | TDA10046_XTAL_4M, |
18 | TDA10046_XTAL_16M, |
19 | }; |
20 | |
21 | enum tda10046_agc { |
22 | TDA10046_AGC_DEFAULT, /* original configuration */ |
23 | TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negative */ |
24 | TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */ |
25 | TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */ |
26 | }; |
27 | |
28 | /* Many (hybrid) boards use GPIO 1 and 3 |
29 | GPIO1 analog - dvb switch |
30 | GPIO3 firmware eeprom address switch |
31 | */ |
32 | enum tda10046_gpio { |
33 | TDA10046_GPTRI = 0x00, /* All GPIOs tristate */ |
34 | TDA10046_GP00 = 0x40, /* GPIO3=0, GPIO1=0 */ |
35 | TDA10046_GP01 = 0x42, /* GPIO3=0, GPIO1=1 */ |
36 | TDA10046_GP10 = 0x48, /* GPIO3=1, GPIO1=0 */ |
37 | TDA10046_GP11 = 0x4a, /* GPIO3=1, GPIO1=1 */ |
38 | TDA10046_GP00_I = 0x80, /* GPIO3=0, GPIO1=0, invert in sleep mode*/ |
39 | TDA10046_GP01_I = 0x82, /* GPIO3=0, GPIO1=1, invert in sleep mode */ |
40 | TDA10046_GP10_I = 0x88, /* GPIO3=1, GPIO1=0, invert in sleep mode */ |
41 | TDA10046_GP11_I = 0x8a, /* GPIO3=1, GPIO1=1, invert in sleep mode */ |
42 | }; |
43 | |
44 | enum tda10046_if { |
45 | TDA10046_FREQ_3617, /* original config, 36,166 MHZ */ |
46 | TDA10046_FREQ_3613, /* 36,13 MHZ */ |
47 | TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */ |
48 | TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */ |
49 | }; |
50 | |
51 | enum tda10046_tsout { |
52 | TDA10046_TS_PARALLEL = 0x00, /* parallel transport stream, default */ |
53 | TDA10046_TS_SERIAL = 0x01, /* serial transport stream */ |
54 | }; |
55 | |
56 | struct tda1004x_config |
57 | { |
58 | /* the demodulator's i2c address */ |
59 | u8 demod_address; |
60 | |
61 | /* does the "inversion" need inverted? */ |
62 | u8 invert; |
63 | |
64 | /* Does the OCLK signal need inverted? */ |
65 | u8 invert_oclk; |
66 | |
67 | /* parallel or serial transport stream */ |
68 | enum tda10046_tsout ts_mode; |
69 | |
70 | /* Xtal frequency, 4 or 16MHz*/ |
71 | enum tda10046_xtal xtal_freq; |
72 | |
73 | /* IF frequency */ |
74 | enum tda10046_if if_freq; |
75 | |
76 | /* AGC configuration */ |
77 | enum tda10046_agc agc_config; |
78 | |
79 | /* setting of GPIO1 and 3 */ |
80 | enum tda10046_gpio gpio_config; |
81 | |
82 | /* slave address and configuration of the tuner */ |
83 | u8 tuner_address; |
84 | u8 antenna_switch; |
85 | |
86 | /* if the board uses another I2c Bridge (tda8290), its address */ |
87 | u8 i2c_gate; |
88 | |
89 | /* request firmware for device */ |
90 | int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name); |
91 | }; |
92 | |
93 | enum tda1004x_demod { |
94 | TDA1004X_DEMOD_TDA10045, |
95 | TDA1004X_DEMOD_TDA10046, |
96 | }; |
97 | |
98 | struct tda1004x_state { |
99 | struct i2c_adapter* i2c; |
100 | const struct tda1004x_config* config; |
101 | struct dvb_frontend frontend; |
102 | |
103 | /* private demod data */ |
104 | enum tda1004x_demod demod_type; |
105 | }; |
106 | |
107 | #if IS_REACHABLE(CONFIG_DVB_TDA1004X) |
108 | extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, |
109 | struct i2c_adapter* i2c); |
110 | |
111 | extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, |
112 | struct i2c_adapter* i2c); |
113 | #else |
114 | static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, |
115 | struct i2c_adapter* i2c) |
116 | { |
117 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
118 | return NULL; |
119 | } |
120 | static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, |
121 | struct i2c_adapter* i2c) |
122 | { |
123 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
124 | return NULL; |
125 | } |
126 | #endif // CONFIG_DVB_TDA1004X |
127 | |
128 | static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) { |
129 | int r = 0; |
130 | u8 buf[] = {reg, val}; |
131 | if (fe->ops.write) |
132 | r = fe->ops.write(fe, buf, 2); |
133 | return r; |
134 | } |
135 | |
136 | #endif // TDA1004X_H |
137 | |