forked from Minki/linux
5bea1cd387
Add basic support for NXP TDA8295 analog demod and TDA18271 tuner silicon. TDA8295 + TDA8275a not yet tested. TDA8290 + TDA18271 not yet supported. Digital mode of TDA18271 not yet tested & needs more work. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
759 lines
21 KiB
C
759 lines
21 KiB
C
/*
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i2c tv tuner chip device driver
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controls the philips tda8290+75 tuner chip combo.
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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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This "tda8290" module was split apart from the original "tuner" module.
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*/
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#include <linux/i2c.h>
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#include <linux/delay.h>
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#include <linux/videodev.h>
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#include "tda8290.h"
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#include "tda827x.h"
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#include "tda18271.h"
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static int tuner_debug;
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module_param_named(debug, tuner_debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable verbose debug messages");
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#define PREFIX "tda8290 "
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/* ---------------------------------------------------------------------- */
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struct tda8290_priv {
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struct tuner_i2c_props i2c_props;
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unsigned char tda8290_easy_mode;
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unsigned char tda827x_addr;
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unsigned char tda827x_ver;
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struct tda827x_config cfg;
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};
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/*---------------------------------------------------------------------*/
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static void tda8290_i2c_bridge(struct tuner *t, int close)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char enable[2] = { 0x21, 0xC0 };
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unsigned char disable[2] = { 0x21, 0x00 };
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unsigned char *msg;
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if(close) {
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msg = enable;
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tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
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/* let the bridge stabilize */
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msleep(20);
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} else {
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msg = disable;
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tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
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}
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}
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static void tda8295_i2c_bridge(struct tuner *t, int close)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char enable[2] = { 0x45, 0xc1 };
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unsigned char disable[2] = { 0x46, 0x00 };
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unsigned char buf[3] = { 0x45, 0x01, 0x00 };
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unsigned char *msg;
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if (close) {
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msg = enable;
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tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
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/* let the bridge stabilize */
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msleep(20);
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} else {
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msg = disable;
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tuner_i2c_xfer_send(&priv->i2c_props, msg, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1);
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buf[2] = msg[1];
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buf[2] &= ~0x04;
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tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
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msleep(5);
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msg[1] |= 0x04;
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tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
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}
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}
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/*---------------------------------------------------------------------*/
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static void set_audio(struct tuner *t)
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{
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struct tda8290_priv *priv = t->priv;
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char* mode;
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priv->cfg.tda827x_lpsel = 0;
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if (t->std & V4L2_STD_MN) {
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priv->cfg.sgIF = 92;
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priv->tda8290_easy_mode = 0x01;
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priv->cfg.tda827x_lpsel = 1;
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mode = "MN";
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} else if (t->std & V4L2_STD_B) {
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priv->cfg.sgIF = 108;
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priv->tda8290_easy_mode = 0x02;
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mode = "B";
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} else if (t->std & V4L2_STD_GH) {
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priv->cfg.sgIF = 124;
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priv->tda8290_easy_mode = 0x04;
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mode = "GH";
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} else if (t->std & V4L2_STD_PAL_I) {
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priv->cfg.sgIF = 124;
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priv->tda8290_easy_mode = 0x08;
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mode = "I";
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} else if (t->std & V4L2_STD_DK) {
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priv->cfg.sgIF = 124;
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priv->tda8290_easy_mode = 0x10;
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mode = "DK";
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} else if (t->std & V4L2_STD_SECAM_L) {
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priv->cfg.sgIF = 124;
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priv->tda8290_easy_mode = 0x20;
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mode = "L";
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} else if (t->std & V4L2_STD_SECAM_LC) {
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priv->cfg.sgIF = 20;
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priv->tda8290_easy_mode = 0x40;
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mode = "LC";
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} else {
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priv->cfg.sgIF = 124;
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priv->tda8290_easy_mode = 0x10;
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mode = "xx";
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}
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if (t->mode == V4L2_TUNER_RADIO)
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priv->cfg.sgIF = 88; /* if frequency is 5.5 MHz */
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tuner_dbg("setting tda8290 to system %s\n", mode);
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}
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static void tda8290_set_freq(struct tuner *t, unsigned int freq)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char soft_reset[] = { 0x00, 0x00 };
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unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode };
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unsigned char expert_mode[] = { 0x01, 0x80 };
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unsigned char agc_out_on[] = { 0x02, 0x00 };
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unsigned char gainset_off[] = { 0x28, 0x14 };
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unsigned char if_agc_spd[] = { 0x0f, 0x88 };
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unsigned char adc_head_6[] = { 0x05, 0x04 };
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unsigned char adc_head_9[] = { 0x05, 0x02 };
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unsigned char adc_head_12[] = { 0x05, 0x01 };
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unsigned char pll_bw_nom[] = { 0x0d, 0x47 };
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unsigned char pll_bw_low[] = { 0x0d, 0x27 };
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unsigned char gainset_2[] = { 0x28, 0x64 };
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unsigned char agc_rst_on[] = { 0x0e, 0x0b };
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unsigned char agc_rst_off[] = { 0x0e, 0x09 };
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unsigned char if_agc_set[] = { 0x0f, 0x81 };
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unsigned char addr_adc_sat = 0x1a;
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unsigned char addr_agc_stat = 0x1d;
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unsigned char addr_pll_stat = 0x1b;
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unsigned char adc_sat, agc_stat,
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pll_stat;
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int i;
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struct analog_parameters params = {
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.frequency = freq,
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.mode = t->mode,
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.audmode = t->audmode,
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.std = t->std
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};
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set_audio(t);
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tuner_dbg("tda827xa config is 0x%02x\n", t->config);
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tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
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msleep(1);
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expert_mode[1] = priv->tda8290_easy_mode + 0x80;
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tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
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if (priv->tda8290_easy_mode & 0x60)
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tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
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else
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tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
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tda8290_i2c_bridge(t, 1);
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if (t->fe.ops.tuner_ops.set_analog_params)
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t->fe.ops.tuner_ops.set_analog_params(&t->fe, ¶ms);
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for (i = 0; i < 3; i++) {
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
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if (pll_stat & 0x80) {
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
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tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
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break;
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} else {
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tuner_dbg("tda8290 not locked, no signal?\n");
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msleep(100);
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}
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}
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/* adjust headroom resp. gain */
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if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
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tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
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agc_stat, adc_sat, pll_stat & 0x80);
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tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2);
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msleep(100);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
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if ((agc_stat > 115) || !(pll_stat & 0x80)) {
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tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
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agc_stat, pll_stat & 0x80);
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if (priv->cfg.agcf)
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priv->cfg.agcf(&t->fe);
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msleep(100);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
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if((agc_stat > 115) || !(pll_stat & 0x80)) {
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tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
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tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2);
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msleep(100);
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}
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}
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}
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/* l/ l' deadlock? */
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if(priv->tda8290_easy_mode & 0x60) {
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
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if ((adc_sat > 20) || !(pll_stat & 0x80)) {
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tuner_dbg("trying to resolve SECAM L deadlock\n");
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tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2);
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msleep(40);
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tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2);
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}
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}
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tda8290_i2c_bridge(t, 0);
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tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2);
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}
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/*---------------------------------------------------------------------*/
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static void tda8295_power(struct tuner *t, int enable)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
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tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
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if (enable)
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buf[1] = 0x01;
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else
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buf[1] = 0x03;
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tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
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}
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static void tda8295_set_easy_mode(struct tuner *t, int enable)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char buf[] = { 0x01, 0x00 };
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tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
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if (enable)
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buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
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else
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buf[1] = 0x00; /* reset active bit */
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tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
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}
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static void tda8295_set_video_std(struct tuner *t)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
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tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
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tda8295_set_easy_mode(t, 1);
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msleep(20);
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tda8295_set_easy_mode(t, 0);
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}
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/*---------------------------------------------------------------------*/
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static void tda8295_agc1_out(struct tuner *t, int enable)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
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tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
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if (enable)
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buf[1] &= ~0x40;
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else
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buf[1] |= 0x40;
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tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
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}
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static void tda8295_agc2_out(struct tuner *t, int enable)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char set_gpio_cf[] = { 0x44, 0x00 };
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unsigned char set_gpio_val[] = { 0x46, 0x00 };
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tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1);
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set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
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if (enable) {
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set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */
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set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
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}
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tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
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tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
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}
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static int tda8295_has_signal(struct tuner *t)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char hvpll_stat = 0x26;
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unsigned char ret;
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tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1);
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return (ret & 0x01) ? 65535 : 0;
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}
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/*---------------------------------------------------------------------*/
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static void tda8295_set_freq(struct tuner *t, unsigned int freq)
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{
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struct tda8290_priv *priv = t->priv;
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u16 ifc;
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unsigned char blanking_mode[] = { 0x1d, 0x00 };
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struct analog_parameters params = {
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.frequency = freq,
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.mode = t->mode,
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.audmode = t->audmode,
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.std = t->std
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};
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set_audio(t);
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ifc = priv->cfg.sgIF; /* FIXME */
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tuner_dbg("%s: ifc = %u, freq = %d\n", __FUNCTION__, ifc, freq);
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tda8295_power(t, 1);
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tda8295_agc1_out(t, 1);
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tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1);
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tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1);
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tda8295_set_video_std(t);
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blanking_mode[1] = 0x03;
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tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
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msleep(20);
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tda8295_i2c_bridge(t, 1);
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if (t->fe.ops.tuner_ops.set_analog_params)
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t->fe.ops.tuner_ops.set_analog_params(&t->fe, ¶ms);
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if (priv->cfg.agcf)
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priv->cfg.agcf(&t->fe);
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if (tda8295_has_signal(t))
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tuner_dbg("tda8295 is locked\n");
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else
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tuner_dbg("tda8295 not locked, no signal?\n");
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tda8295_i2c_bridge(t, 0);
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}
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/*---------------------------------------------------------------------*/
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static int tda8290_has_signal(struct tuner *t)
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{
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struct tda8290_priv *priv = t->priv;
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unsigned char i2c_get_afc[1] = { 0x1B };
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unsigned char afc = 0;
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tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
|
|
tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1);
|
|
return (afc & 0x80)? 65535:0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
|
|
static void tda8290_standby(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = t->priv;
|
|
unsigned char cb1[] = { 0x30, 0xD0 };
|
|
unsigned char tda8290_standby[] = { 0x00, 0x02 };
|
|
unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
|
|
struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
|
|
|
|
tda8290_i2c_bridge(t, 1);
|
|
if (priv->tda827x_ver != 0)
|
|
cb1[1] = 0x90;
|
|
i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
tda8290_i2c_bridge(t, 0);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
|
|
}
|
|
|
|
static void tda8295_standby(struct tuner *t)
|
|
{
|
|
tda8295_agc1_out(t, 0); /* Put AGC in tri-state */
|
|
|
|
tda8295_power(t, 0);
|
|
}
|
|
|
|
static void tda8290_init_if(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = t->priv;
|
|
|
|
unsigned char set_VS[] = { 0x30, 0x6F };
|
|
unsigned char set_GP00_CF[] = { 0x20, 0x01 };
|
|
unsigned char set_GP01_CF[] = { 0x20, 0x0B };
|
|
|
|
if ((t->config == 1) || (t->config == 2))
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2);
|
|
else
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
|
|
}
|
|
|
|
static void tda8295_init_if(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = t->priv;
|
|
|
|
static unsigned char set_adc_ctl[] = { 0x33, 0x14 };
|
|
static unsigned char set_adc_ctl2[] = { 0x34, 0x00 };
|
|
static unsigned char set_pll_reg6[] = { 0x3e, 0x63 };
|
|
static unsigned char set_pll_reg0[] = { 0x38, 0x23 };
|
|
static unsigned char set_pll_reg7[] = { 0x3f, 0x01 };
|
|
static unsigned char set_pll_reg10[] = { 0x42, 0x61 };
|
|
static unsigned char set_gpio_reg0[] = { 0x44, 0x0b };
|
|
|
|
tda8295_power(t, 1);
|
|
|
|
tda8295_set_easy_mode(t, 0);
|
|
tda8295_set_video_std(t);
|
|
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
|
|
tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
|
|
|
|
tda8295_agc1_out(t, 0);
|
|
tda8295_agc2_out(t, 0);
|
|
}
|
|
|
|
static void tda8290_init_tuner(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = t->priv;
|
|
unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
|
|
0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
|
|
unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
|
|
0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
|
|
struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
|
|
.buf=tda8275_init, .len = 14};
|
|
if (priv->tda827x_ver != 0)
|
|
msg.buf = tda8275a_init;
|
|
|
|
tda8290_i2c_bridge(t, 1);
|
|
i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
tda8290_i2c_bridge(t, 0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
|
|
static void tda829x_release(struct tuner *t)
|
|
{
|
|
if (t->fe.ops.tuner_ops.release)
|
|
t->fe.ops.tuner_ops.release(&t->fe);
|
|
|
|
kfree(t->priv);
|
|
t->priv = NULL;
|
|
}
|
|
|
|
static struct tuner_operations tda8290_tuner_ops = {
|
|
.set_tv_freq = tda8290_set_freq,
|
|
.set_radio_freq = tda8290_set_freq,
|
|
.has_signal = tda8290_has_signal,
|
|
.standby = tda8290_standby,
|
|
.release = tda829x_release,
|
|
};
|
|
|
|
static struct tuner_operations tda8295_tuner_ops = {
|
|
.set_tv_freq = tda8295_set_freq,
|
|
.set_radio_freq = tda8295_set_freq,
|
|
.has_signal = tda8295_has_signal,
|
|
.standby = tda8295_standby,
|
|
.release = tda829x_release,
|
|
};
|
|
|
|
int tda8290_attach(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = NULL;
|
|
u8 data;
|
|
int i, ret, tuners_found;
|
|
u32 tuner_addrs;
|
|
struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1};
|
|
|
|
priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return -ENOMEM;
|
|
t->priv = priv;
|
|
|
|
priv->i2c_props.addr = t->i2c.addr;
|
|
priv->i2c_props.adap = t->i2c.adapter;
|
|
priv->cfg.config = &t->config;
|
|
priv->cfg.tuner_callback = t->tuner_callback;
|
|
|
|
tda8290_i2c_bridge(t, 1);
|
|
/* probe for tuner chip */
|
|
tuners_found = 0;
|
|
tuner_addrs = 0;
|
|
for (i=0x60; i<= 0x63; i++) {
|
|
msg.addr = i;
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
if (ret == 1) {
|
|
tuners_found++;
|
|
tuner_addrs = (tuner_addrs << 8) + i;
|
|
}
|
|
}
|
|
/* if there is more than one tuner, we expect the right one is
|
|
behind the bridge and we choose the highest address that doesn't
|
|
give a response now
|
|
*/
|
|
tda8290_i2c_bridge(t, 0);
|
|
if(tuners_found > 1)
|
|
for (i = 0; i < tuners_found; i++) {
|
|
msg.addr = tuner_addrs & 0xff;
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
if(ret == 1)
|
|
tuner_addrs = tuner_addrs >> 8;
|
|
else
|
|
break;
|
|
}
|
|
if (tuner_addrs == 0) {
|
|
tuner_addrs = 0x61;
|
|
tuner_info("could not clearly identify tuner address, defaulting to %x\n",
|
|
tuner_addrs);
|
|
} else {
|
|
tuner_addrs = tuner_addrs & 0xff;
|
|
tuner_info("setting tuner address to %x\n", tuner_addrs);
|
|
}
|
|
priv->tda827x_addr = tuner_addrs;
|
|
msg.addr = tuner_addrs;
|
|
|
|
tda8290_i2c_bridge(t, 1);
|
|
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
if( ret != 1)
|
|
tuner_warn("TDA827x access failed!\n");
|
|
|
|
if ((data & 0x3c) == 0) {
|
|
strlcpy(t->i2c.name, "tda8290+75", sizeof(t->i2c.name));
|
|
priv->tda827x_ver = 0;
|
|
} else {
|
|
strlcpy(t->i2c.name, "tda8290+75a", sizeof(t->i2c.name));
|
|
priv->tda827x_ver = 2;
|
|
}
|
|
tda827x_attach(&t->fe, priv->tda827x_addr,
|
|
priv->i2c_props.adap, &priv->cfg);
|
|
|
|
/* FIXME: tda827x module doesn't probe the tuner until
|
|
* tda827x_initial_sleep is called
|
|
*/
|
|
if (t->fe.ops.tuner_ops.sleep)
|
|
t->fe.ops.tuner_ops.sleep(&t->fe);
|
|
|
|
memcpy(&t->ops, &tda8290_tuner_ops, sizeof(struct tuner_operations));
|
|
|
|
tuner_info("type set to %s\n", t->i2c.name);
|
|
|
|
priv->cfg.tda827x_lpsel = 0;
|
|
t->mode = V4L2_TUNER_ANALOG_TV;
|
|
|
|
tda8290_init_tuner(t);
|
|
tda8290_init_if(t);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tda8290_attach);
|
|
|
|
int tda8295_attach(struct tuner *t)
|
|
{
|
|
struct tda8290_priv *priv = NULL;
|
|
u8 data;
|
|
int i, ret, tuners_found;
|
|
u32 tuner_addrs;
|
|
struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
|
|
|
|
priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return -ENOMEM;
|
|
t->priv = priv;
|
|
|
|
priv->i2c_props.addr = t->i2c.addr;
|
|
priv->i2c_props.adap = t->i2c.adapter;
|
|
|
|
tda8295_i2c_bridge(t, 1);
|
|
/* probe for tuner chip */
|
|
tuners_found = 0;
|
|
tuner_addrs = 0;
|
|
for (i = 0x60; i <= 0x63; i++) {
|
|
msg.addr = i;
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
if (ret == 1) {
|
|
tuners_found++;
|
|
tuner_addrs = (tuner_addrs << 8) + i;
|
|
}
|
|
}
|
|
/* if there is more than one tuner, we expect the right one is
|
|
behind the bridge and we choose the highest address that doesn't
|
|
give a response now
|
|
*/
|
|
tda8295_i2c_bridge(t, 0);
|
|
if (tuners_found > 1)
|
|
for (i = 0; i < tuners_found; i++) {
|
|
msg.addr = tuner_addrs & 0xff;
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
if (ret == 1)
|
|
tuner_addrs = tuner_addrs >> 8;
|
|
else
|
|
break;
|
|
}
|
|
if (tuner_addrs == 0) {
|
|
tuner_addrs = 0x60;
|
|
tuner_info("could not clearly identify tuner address, "
|
|
"defaulting to %x\n", tuner_addrs);
|
|
} else {
|
|
tuner_addrs = tuner_addrs & 0xff;
|
|
tuner_info("setting tuner address to %x\n", tuner_addrs);
|
|
}
|
|
priv->tda827x_addr = tuner_addrs;
|
|
msg.addr = tuner_addrs;
|
|
|
|
tda8295_i2c_bridge(t, 1);
|
|
ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
|
|
tda8295_i2c_bridge(t, 0);
|
|
if (ret != 1)
|
|
tuner_warn("TDA827x access failed!\n");
|
|
if ((data & 0x3c) == 0) {
|
|
strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
|
|
tda18271_attach(&t->fe, priv->tda827x_addr,
|
|
priv->i2c_props.adap);
|
|
priv->tda827x_ver = 4;
|
|
} else {
|
|
strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
|
|
tda827x_attach(&t->fe, priv->tda827x_addr,
|
|
priv->i2c_props.adap, &priv->cfg);
|
|
|
|
/* FIXME: tda827x module doesn't probe the tuner until
|
|
* tda827x_initial_sleep is called
|
|
*/
|
|
if (t->fe.ops.tuner_ops.sleep)
|
|
t->fe.ops.tuner_ops.sleep(&t->fe);
|
|
priv->tda827x_ver = 2;
|
|
}
|
|
priv->tda827x_ver |= 1; /* signifies 8295 vs 8290 */
|
|
tuner_info("type set to %s\n", t->i2c.name);
|
|
|
|
memcpy(&t->ops, &tda8295_tuner_ops, sizeof(struct tuner_operations));
|
|
|
|
priv->cfg.tda827x_lpsel = 0;
|
|
t->mode = V4L2_TUNER_ANALOG_TV;
|
|
|
|
tda8295_init_if(t);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tda8295_attach);
|
|
|
|
int tda8290_probe(struct tuner *t)
|
|
{
|
|
struct tuner_i2c_props i2c_props = {
|
|
.adap = t->i2c.adapter,
|
|
.addr = t->i2c.addr
|
|
};
|
|
|
|
unsigned char soft_reset[] = { 0x00, 0x00 };
|
|
unsigned char easy_mode_b[] = { 0x01, 0x02 };
|
|
unsigned char easy_mode_g[] = { 0x01, 0x04 };
|
|
unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
|
|
unsigned char addr_dto_lsb = 0x07;
|
|
unsigned char data;
|
|
|
|
tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);
|
|
tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
|
|
tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
|
|
tuner_i2c_xfer_recv(&i2c_props, &data, 1);
|
|
if (data == 0) {
|
|
tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2);
|
|
tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
|
|
tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
|
|
tuner_i2c_xfer_recv(&i2c_props, &data, 1);
|
|
if (data == 0x7b) {
|
|
return 0;
|
|
}
|
|
}
|
|
tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
|
|
return -1;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tda8290_probe);
|
|
|
|
MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver");
|
|
MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|