mirror of https://gitee.com/openkylin/linux.git
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
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Driver for Philips tda1004xh OFDM Frontend
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(c) 2004 Andrew de Quincey
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef TDA1004X_H
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#define TDA1004X_H
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#include <linux/dvb/frontend.h>
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#include <linux/firmware.h>
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enum tda10046_xtal {
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TDA10046_XTAL_4M,
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TDA10046_XTAL_16M,
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};
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enum tda10046_agc {
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TDA10046_AGC_DEFAULT, /* original configuration */
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TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negtive */
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TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */
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TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */
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TDA10046_AGC_TDA827X_GPL, /* same as above, but GPIOs 0 */
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};
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enum tda10046_if {
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TDA10046_FREQ_3617, /* original config, 36,166 MHZ */
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TDA10046_FREQ_3613, /* 36,13 MHZ */
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TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */
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TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */
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};
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struct tda1004x_config
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{
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/* the demodulator's i2c address */
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u8 demod_address;
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/* does the "inversion" need inverted? */
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u8 invert;
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/* Does the OCLK signal need inverted? */
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u8 invert_oclk;
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/* Xtal frequency, 4 or 16MHz*/
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enum tda10046_xtal xtal_freq;
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/* IF frequency */
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enum tda10046_if if_freq;
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/* AGC configuration */
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enum tda10046_agc agc_config;
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/* request firmware for device */
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/* set this to NULL if the card has a firmware EEPROM */
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int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
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};
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#if defined(CONFIG_DVB_TDA1004X) || defined(CONFIG_DVB_TDA1004X_MODULE)
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extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
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struct i2c_adapter* i2c);
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extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
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struct i2c_adapter* i2c);
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#else
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static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
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struct i2c_adapter* i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
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return NULL;
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}
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static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
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struct i2c_adapter* i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
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return NULL;
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}
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#endif // CONFIG_DVB_TDA1004X
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static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
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int r = 0;
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u8 buf[] = {reg, val};
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if (fe->ops.write)
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r = fe->ops.write(fe, buf, 2);
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return r;
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}
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#endif // TDA1004X_H
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