2 Driver for Philips tda1004xh OFDM Frontend
4 (c) 2004 Andrew de Quincey
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.
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
15 GNU General Public License for more details.
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.
26 #include <linux/dvb/frontend.h>
27 #include <linux/firmware.h>
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 */
41 /* Many (hybrid) boards use GPIO 1 and 3
42 GPIO1 analog - dvb switch
43 GPIO3 firmware eeprom address switch
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 */
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 */
64 struct tda1004x_config
66 /* the demodulator's i2c address */
69 /* does the "inversion" need inverted? */
72 /* Does the OCLK signal need inverted? */
75 /* Xtal frequency, 4 or 16MHz*/
76 enum tda10046_xtal xtal_freq;
79 enum tda10046_if if_freq;
81 /* AGC configuration */
82 enum tda10046_agc agc_config;
84 /* setting of GPIO1 and 3 */
85 enum tda10046_gpio gpio_config;
87 /* slave address and configuration of the tuner */
92 /* if the board uses another I2c Bridge (tda8290), its address */
95 /* request firmware for device */
96 int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
100 TDA1004X_DEMOD_TDA10045,
101 TDA1004X_DEMOD_TDA10046,
104 struct tda1004x_state {
105 struct i2c_adapter* i2c;
106 const struct tda1004x_config* config;
107 struct dvb_frontend frontend;
109 /* private demod data */
110 enum tda1004x_demod demod_type;
113 #if defined(CONFIG_DVB_TDA1004X) || (defined(CONFIG_DVB_TDA1004X_MODULE) && defined(MODULE))
114 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
115 struct i2c_adapter* i2c);
117 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
118 struct i2c_adapter* i2c);
120 static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
121 struct i2c_adapter* i2c)
123 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
126 static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
127 struct i2c_adapter* i2c)
129 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
132 #endif // CONFIG_DVB_TDA1004X
134 static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
136 u8 buf[] = {reg, val};
138 r = fe->ops.write(fe, buf, 2);