1724c8fa7e
There is already an option for sending 16 byte chunks rather that writing 39 bytes all at once during the tuner's initialization. Some i2c buses can't send 16 bytes at once, so create an option for sending 8 byte chunks. Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/*
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tda18271.h - header for the Philips / NXP TDA18271 silicon tuner
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Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
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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 __TDA18271_H__
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#define __TDA18271_H__
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#include <linux/i2c.h>
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#include "dvb_frontend.h"
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struct tda18271_std_map_item {
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u16 if_freq;
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/* EP3[4:3] */
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unsigned int agc_mode:2;
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/* EP3[2:0] */
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unsigned int std:3;
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/* EP4[7] */
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unsigned int fm_rfn:1;
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/* EP4[4:2] */
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unsigned int if_lvl:3;
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/* EB22[6:0] */
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unsigned int rfagc_top:7;
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};
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struct tda18271_std_map {
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struct tda18271_std_map_item fm_radio;
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struct tda18271_std_map_item atv_b;
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struct tda18271_std_map_item atv_dk;
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struct tda18271_std_map_item atv_gh;
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struct tda18271_std_map_item atv_i;
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struct tda18271_std_map_item atv_l;
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struct tda18271_std_map_item atv_lc;
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struct tda18271_std_map_item atv_mn;
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struct tda18271_std_map_item atsc_6;
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struct tda18271_std_map_item dvbt_6;
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struct tda18271_std_map_item dvbt_7;
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struct tda18271_std_map_item dvbt_8;
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struct tda18271_std_map_item qam_6;
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struct tda18271_std_map_item qam_8;
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};
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enum tda18271_role {
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TDA18271_MASTER = 0,
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TDA18271_SLAVE,
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};
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enum tda18271_i2c_gate {
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TDA18271_GATE_AUTO = 0,
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TDA18271_GATE_ANALOG,
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TDA18271_GATE_DIGITAL,
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};
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enum tda18271_output_options {
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/* slave tuner output & loop thru & xtal oscillator always on */
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TDA18271_OUTPUT_LT_XT_ON = 0,
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/* slave tuner output loop thru off */
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TDA18271_OUTPUT_LT_OFF = 1,
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/* xtal oscillator off */
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TDA18271_OUTPUT_XT_OFF = 2,
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};
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enum tda18271_small_i2c {
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TDA18271_39_BYTE_CHUNK_INIT = 0,
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TDA18271_16_BYTE_CHUNK_INIT = 1,
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TDA18271_08_BYTE_CHUNK_INIT = 2,
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};
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struct tda18271_config {
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/* override default if freq / std settings (optional) */
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struct tda18271_std_map *std_map;
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/* master / slave tuner: master uses main pll, slave uses cal pll */
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enum tda18271_role role;
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/* use i2c gate provided by analog or digital demod */
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enum tda18271_i2c_gate gate;
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/* output options that can be disabled */
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enum tda18271_output_options output_opt;
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/* some i2c providers cant write all 39 registers at once */
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enum tda18271_small_i2c small_i2c;
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/* force rf tracking filter calibration on startup */
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unsigned int rf_cal_on_startup:1;
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/* interface to saa713x / tda829x */
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unsigned int config;
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};
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#define TDA18271_CALLBACK_CMD_AGC_ENABLE 0
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enum tda18271_mode {
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TDA18271_ANALOG = 0,
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TDA18271_DIGITAL,
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};
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#if defined(CONFIG_MEDIA_TUNER_TDA18271) || (defined(CONFIG_MEDIA_TUNER_TDA18271_MODULE) && defined(MODULE))
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extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
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struct i2c_adapter *i2c,
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struct tda18271_config *cfg);
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#else
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static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
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u8 addr,
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struct i2c_adapter *i2c,
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struct tda18271_config *cfg)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif /* __TDA18271_H__ */
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