1 /*
2 Driver for Philips tda1004xh OFDM Frontend
3
4 (c) 2004 Andrew de Quincey
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21 */
22
23 #ifndef TDA1004X_H
24 #define TDA1004X_H
25
26 #include <linux/dvb/frontend.h>
27 #include <linux/firmware.h>
28
29 enum tda10046_xtal {
30 TDA10046_XTAL_4M,
31 TDA10046_XTAL_16M,
32 };
33
34 enum tda10046_agc {
35 TDA10046_AGC_DEFAULT, /* original configuration */
36 TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negtive */
37 TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */
38 TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */
39 };
40
41 /* Many (hybrid) boards use GPIO 1 and 3
42 GPIO1 analog - dvb switch
43 GPIO3 firmware eeprom address switch
44 */
45 enum tda10046_gpio {
46 TDA10046_GPTRI = 0x00, /* All GPIOs tristate */
47 TDA10046_GP00 = 0x40, /* GPIO3=0, GPIO1=0 */
48 TDA10046_GP01 = 0x42, /* GPIO3=0, GPIO1=1 */
49 TDA10046_GP10 = 0x48, /* GPIO3=1, GPIO1=0 */
50 TDA10046_GP11 = 0x4a, /* GPIO3=1, GPIO1=1 */
51 TDA10046_GP00_I = 0x80, /* GPIO3=0, GPIO1=0, invert in sleep mode*/
52 TDA10046_GP01_I = 0x82, /* GPIO3=0, GPIO1=1, invert in sleep mode */
53 TDA10046_GP10_I = 0x88, /* GPIO3=1, GPIO1=0, invert in sleep mode */
54 TDA10046_GP11_I = 0x8a, /* GPIO3=1, GPIO1=1, invert in sleep mode */
55 };
56
57 enum tda10046_if {
58 TDA10046_FREQ_3617, /* original config, 36,166 MHZ */
59 TDA10046_FREQ_3613, /* 36,13 MHZ */
60 TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */
61 TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */
62 };
63
64 enum tda10046_tsout {
65 TDA10046_TS_PARALLEL = 0x00, /* parallel transport stream, default */
66 TDA10046_TS_SERIAL = 0x01, /* serial transport stream */
67 };
68
69 struct tda1004x_config
70 {
71 /* the demodulator's i2c address */
72 u8 demod_address;
73
74 /* does the "inversion" need inverted? */
75 u8 invert;
76
77 /* Does the OCLK signal need inverted? */
78 u8 invert_oclk;
79
80 /* parallel or serial transport stream */
81 enum tda10046_tsout ts_mode;
82
83 /* Xtal frequency, 4 or 16MHz*/
84 enum tda10046_xtal xtal_freq;
85
86 /* IF frequency */
87 enum tda10046_if if_freq;
88
89 /* AGC configuration */
90 enum tda10046_agc agc_config;
91
92 /* setting of GPIO1 and 3 */
93 enum tda10046_gpio gpio_config;
94
95 /* slave address and configuration of the tuner */
96 u8 tuner_address;
97 u8 antenna_switch;
98
99 /* if the board uses another I2c Bridge (tda8290), its address */
100 u8 i2c_gate;
101
102 /* request firmware for device */
103 int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
104 };
105
106 enum tda1004x_demod {
107 TDA1004X_DEMOD_TDA10045,
108 TDA1004X_DEMOD_TDA10046,
109 };
110
111 struct tda1004x_state {
112 struct i2c_adapter* i2c;
113 const struct tda1004x_config* config;
114 struct dvb_frontend frontend;
115
116 /* private demod data */
117 enum tda1004x_demod demod_type;
118 };
119
120 #if IS_REACHABLE(CONFIG_DVB_TDA1004X)
121 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
122 struct i2c_adapter* i2c);
123
124 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
125 struct i2c_adapter* i2c);
126 #else
tda10045_attach(const struct tda1004x_config * config,struct i2c_adapter * i2c)127 static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
128 struct i2c_adapter* i2c)
129 {
130 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
131 return NULL;
132 }
tda10046_attach(const struct tda1004x_config * config,struct i2c_adapter * i2c)133 static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
134 struct i2c_adapter* i2c)
135 {
136 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
137 return NULL;
138 }
139 #endif // CONFIG_DVB_TDA1004X
140
tda1004x_writereg(struct dvb_frontend * fe,u8 reg,u8 val)141 static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
142 int r = 0;
143 u8 buf[] = {reg, val};
144 if (fe->ops.write)
145 r = fe->ops.write(fe, buf, 2);
146 return r;
147 }
148
149 #endif // TDA1004X_H
150