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V4L/DVB (6130): mt20xx: convert from tuner sub-driver into dvb_frontend module
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Mike Isely <isely@pobox.com> Acked-by: Steven Toth <stoth@hauppauge.com> Acked-by: Patrick Boettcher <pb@linuxtv.org> Acked-by: Jarod Wilson <jwilson@redhat.com> Acked-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky
Mauro Carvalho Chehab
parent
910bb3e3c5
commit
96c0b7cfa5
4 changed files with 197 additions and 81 deletions
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@ -1,12 +1,20 @@
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/*
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*
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* i2c tv tuner chip device driver
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* controls microtune tuners, mt2032 + mt2050 at the moment.
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*
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* This "mt20xx" module was split apart from the original "tuner" module.
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*/
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/videodev.h>
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#include "tuner-driver.h"
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#include "tuner-i2c.h"
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#include "mt20xx.h"
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static int debug = 0;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable verbose debug messages");
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#define PREFIX "mt20xx "
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/* ---------------------------------------------------------------------- */
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@ -19,9 +27,6 @@ module_param(tv_antenna, int, 0644);
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static unsigned int radio_antenna = 0;
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module_param(radio_antenna, int, 0644);
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/* from tuner-core.c */
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extern int tuner_debug;
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/* ---------------------------------------------------------------------- */
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#define MT2032 0x04
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@ -40,19 +45,31 @@ struct microtune_priv {
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struct tuner_i2c_props i2c_props;
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unsigned int xogc;
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unsigned int radio_if2;
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//unsigned int radio_if2;
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u32 frequency;
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};
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static void microtune_release(struct tuner *t)
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static int microtune_release(struct dvb_frontend *fe)
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{
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kfree(t->priv);
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t->priv = NULL;
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kfree(fe->tuner_priv);
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fe->tuner_priv = NULL;
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return 0;
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}
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static int microtune_get_frequency(struct dvb_frontend *fe, u32 *frequency)
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{
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struct microtune_priv *priv = fe->tuner_priv;
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*frequency = priv->frequency;
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return 0;
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}
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// IsSpurInBand()?
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static int mt2032_spurcheck(struct tuner *t,
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static int mt2032_spurcheck(struct dvb_frontend *fe,
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int f1, int f2, int spectrum_from,int spectrum_to)
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{
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struct microtune_priv *priv = fe->tuner_priv;
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int n1=1,n2,f;
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f1=f1/1000; //scale to kHz to avoid 32bit overflows
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@ -80,7 +97,7 @@ static int mt2032_spurcheck(struct tuner *t,
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return 1;
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}
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static int mt2032_compute_freq(struct tuner *t,
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static int mt2032_compute_freq(struct dvb_frontend *fe,
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unsigned int rfin,
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unsigned int if1, unsigned int if2,
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unsigned int spectrum_from,
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@ -89,6 +106,7 @@ static int mt2032_compute_freq(struct tuner *t,
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int *ret_sel,
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unsigned int xogc) //all in Hz
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{
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
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desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
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@ -138,7 +156,7 @@ static int mt2032_compute_freq(struct tuner *t,
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return(-1);
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}
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mt2032_spurcheck(t, lo1freq, desired_lo2, spectrum_from, spectrum_to);
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mt2032_spurcheck(fe, lo1freq, desired_lo2, spectrum_from, spectrum_to);
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// should recalculate lo1 (one step up/down)
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// set up MT2032 register map for transfer over i2c
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@ -162,9 +180,9 @@ static int mt2032_compute_freq(struct tuner *t,
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return 0;
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}
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static int mt2032_check_lo_lock(struct tuner *t)
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static int mt2032_check_lo_lock(struct dvb_frontend *fe)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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int try,lock=0;
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unsigned char buf[2];
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@ -184,9 +202,9 @@ static int mt2032_check_lo_lock(struct tuner *t)
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return lock;
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}
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static int mt2032_optimize_vco(struct tuner *t,int sel,int lock)
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static int mt2032_optimize_vco(struct dvb_frontend *fe,int sel,int lock)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned char buf[2];
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int tad1;
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@ -216,18 +234,18 @@ static int mt2032_optimize_vco(struct tuner *t,int sel,int lock)
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buf[0]=0x0f;
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buf[1]=sel;
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tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
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lock=mt2032_check_lo_lock(t);
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lock=mt2032_check_lo_lock(fe);
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return lock;
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}
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static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
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static void mt2032_set_if_freq(struct dvb_frontend *fe, unsigned int rfin,
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unsigned int if1, unsigned int if2,
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unsigned int from, unsigned int to)
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{
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unsigned char buf[21];
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int lint_try,ret,sel,lock=0;
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",
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rfin,if1,if2,from,to);
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@ -237,7 +255,7 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
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tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
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buf[0]=0;
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ret=mt2032_compute_freq(t,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc);
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ret=mt2032_compute_freq(fe,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc);
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if (ret<0)
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return;
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@ -253,10 +271,10 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
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// wait for PLLs to lock (per manual), retry LINT if not.
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for(lint_try=0; lint_try<2; lint_try++) {
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lock=mt2032_check_lo_lock(t);
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lock=mt2032_check_lo_lock(fe);
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if(optimize_vco)
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lock=mt2032_optimize_vco(t,sel,lock);
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lock=mt2032_optimize_vco(fe,sel,lock);
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if(lock==6) break;
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tuner_dbg("mt2032: re-init PLLs by LINT\n");
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@ -279,12 +297,13 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
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}
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static void mt2032_set_tv_freq(struct tuner *t, unsigned int freq)
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static int mt2032_set_tv_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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int if2,from,to;
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// signal bandwidth and picture carrier
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if (t->std & V4L2_STD_525_60) {
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if (params->std & V4L2_STD_525_60) {
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// NTSC
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from = 40750*1000;
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to = 46750*1000;
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@ -296,30 +315,64 @@ static void mt2032_set_tv_freq(struct tuner *t, unsigned int freq)
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if2 = 38900*1000;
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}
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mt2032_set_if_freq(t, freq*62500 /* freq*1000*1000/16 */,
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mt2032_set_if_freq(fe, params->frequency*62500,
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1090*1000*1000, if2, from, to);
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return 0;
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}
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static void mt2032_set_radio_freq(struct tuner *t, unsigned int freq)
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static int mt2032_set_radio_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct microtune_priv *priv = t->priv;
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int if2 = priv->radio_if2;
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struct microtune_priv *priv = fe->tuner_priv;
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int if2;
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if (params->std & V4L2_STD_525_60) {
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tuner_dbg("pinnacle ntsc\n");
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if2 = 41300 * 1000;
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} else {
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tuner_dbg("pinnacle pal\n");
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if2 = 33300 * 1000;
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}
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// per Manual for FM tuning: first if center freq. 1085 MHz
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mt2032_set_if_freq(t, freq * 1000 / 16,
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1085*1000*1000,if2,if2,if2);
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mt2032_set_if_freq(fe, params->frequency * 125 / 2,
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1085*1000*1000,if2,if2,if2);
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return 0;
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}
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static struct tuner_operations mt2032_tuner_ops = {
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.set_tv_freq = mt2032_set_tv_freq,
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.set_radio_freq = mt2032_set_radio_freq,
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.release = microtune_release,
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static int mt2032_set_params(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct microtune_priv *priv = fe->tuner_priv;
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int ret = -EINVAL;
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switch (params->mode) {
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case V4L2_TUNER_RADIO:
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ret = mt2032_set_radio_freq(fe, params);
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priv->frequency = params->frequency * 125 / 2;
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break;
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case V4L2_TUNER_ANALOG_TV:
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case V4L2_TUNER_DIGITAL_TV:
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ret = mt2032_set_tv_freq(fe, params);
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priv->frequency = params->frequency * 62500;
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break;
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}
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return ret;
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}
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static struct dvb_tuner_ops mt2032_tuner_ops = {
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.set_analog_params = mt2032_set_params,
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.release = microtune_release,
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.get_frequency = microtune_get_frequency,
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};
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// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
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static int mt2032_init(struct tuner *t)
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static int mt2032_init(struct dvb_frontend *fe)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned char buf[21];
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int ret,xogc,xok=0;
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@ -368,14 +421,14 @@ static int mt2032_init(struct tuner *t)
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} while (xok != 1 );
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priv->xogc=xogc;
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memcpy(&t->ops, &mt2032_tuner_ops, sizeof(struct tuner_operations));
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memcpy(&fe->ops.tuner_ops, &mt2032_tuner_ops, sizeof(struct dvb_tuner_ops));
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return(1);
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}
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static void mt2050_set_antenna(struct tuner *t, unsigned char antenna)
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static void mt2050_set_antenna(struct dvb_frontend *fe, unsigned char antenna)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned char buf[2];
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int ret;
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@ -385,9 +438,9 @@ static void mt2050_set_antenna(struct tuner *t, unsigned char antenna)
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tuner_dbg("mt2050: enabled antenna connector %d\n", antenna);
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}
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static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int if2)
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static void mt2050_set_if_freq(struct dvb_frontend *fe,unsigned int freq, unsigned int if2)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned int if1=1218*1000*1000;
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unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
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int ret;
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@ -419,7 +472,7 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
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div2a=(lo2/8)-1;
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div2b=lo2-(div2a+1)*8;
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if (tuner_debug > 1) {
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if (debug > 1) {
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tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2);
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tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",
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num1,num2,div1a,div1b,div2a,div2b);
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@ -435,7 +488,7 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
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buf[5]=div2a;
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if(num2!=0) buf[5]=buf[5]|0x40;
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if (tuner_debug > 1) {
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if (debug > 1) {
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int i;
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tuner_dbg("bufs is: ");
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for(i=0;i<6;i++)
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@ -448,43 +501,78 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
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tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
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}
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static void mt2050_set_tv_freq(struct tuner *t, unsigned int freq)
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static int mt2050_set_tv_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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unsigned int if2;
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if (t->std & V4L2_STD_525_60) {
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if (params->std & V4L2_STD_525_60) {
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// NTSC
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if2 = 45750*1000;
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} else {
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// PAL
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if2 = 38900*1000;
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}
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if (V4L2_TUNER_DIGITAL_TV == t->mode) {
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if (V4L2_TUNER_DIGITAL_TV == params->mode) {
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// DVB (pinnacle 300i)
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if2 = 36150*1000;
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}
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mt2050_set_if_freq(t, freq*62500, if2);
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mt2050_set_antenna(t, tv_antenna);
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mt2050_set_if_freq(fe, params->frequency*62500, if2);
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mt2050_set_antenna(fe, tv_antenna);
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return 0;
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}
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static void mt2050_set_radio_freq(struct tuner *t, unsigned int freq)
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static int mt2050_set_radio_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct microtune_priv *priv = t->priv;
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int if2 = priv->radio_if2;
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struct microtune_priv *priv = fe->tuner_priv;
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int if2;
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mt2050_set_if_freq(t, freq * 1000 / 16, if2);
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mt2050_set_antenna(t, radio_antenna);
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if (params->std & V4L2_STD_525_60) {
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tuner_dbg("pinnacle ntsc\n");
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if2 = 41300 * 1000;
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} else {
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tuner_dbg("pinnacle pal\n");
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if2 = 33300 * 1000;
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}
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mt2050_set_if_freq(fe, params->frequency * 125 / 2, if2);
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mt2050_set_antenna(fe, radio_antenna);
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return 0;
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}
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static struct tuner_operations mt2050_tuner_ops = {
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.set_tv_freq = mt2050_set_tv_freq,
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.set_radio_freq = mt2050_set_radio_freq,
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.release = microtune_release,
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static int mt2050_set_params(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct microtune_priv *priv = fe->tuner_priv;
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int ret = -EINVAL;
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switch (params->mode) {
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case V4L2_TUNER_RADIO:
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ret = mt2050_set_radio_freq(fe, params);
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priv->frequency = params->frequency * 125 / 2;
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break;
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case V4L2_TUNER_ANALOG_TV:
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case V4L2_TUNER_DIGITAL_TV:
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ret = mt2050_set_tv_freq(fe, params);
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priv->frequency = params->frequency * 62500;
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break;
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}
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return ret;
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}
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static struct dvb_tuner_ops mt2050_tuner_ops = {
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.set_analog_params = mt2050_set_params,
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.release = microtune_release,
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.get_frequency = microtune_get_frequency,
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};
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static int mt2050_init(struct tuner *t)
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static int mt2050_init(struct dvb_frontend *fe)
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{
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struct microtune_priv *priv = t->priv;
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struct microtune_priv *priv = fe->tuner_priv;
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unsigned char buf[2];
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int ret;
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@ -502,12 +590,14 @@ static int mt2050_init(struct tuner *t)
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tuner_dbg("mt2050: sro is %x\n",buf[0]);
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memcpy(&t->ops, &mt2050_tuner_ops, sizeof(struct tuner_operations));
|
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memcpy(&fe->ops.tuner_ops, &mt2050_tuner_ops, sizeof(struct dvb_tuner_ops));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int microtune_init(struct tuner *t)
|
||||
struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter* i2c_adap,
|
||||
u8 i2c_addr)
|
||||
{
|
||||
struct microtune_priv *priv = NULL;
|
||||
char *name;
|
||||
|
|
@ -516,28 +606,21 @@ int microtune_init(struct tuner *t)
|
|||
|
||||
priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL);
|
||||
if (priv == NULL)
|
||||
return -ENOMEM;
|
||||
t->priv = priv;
|
||||
return NULL;
|
||||
fe->tuner_priv = priv;
|
||||
|
||||
priv->i2c_props.addr = t->i2c.addr;
|
||||
priv->i2c_props.adap = t->i2c.adapter;
|
||||
priv->i2c_props.addr = i2c_addr;
|
||||
priv->i2c_props.adap = i2c_adap;
|
||||
|
||||
priv->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */
|
||||
//priv->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */
|
||||
|
||||
memset(buf,0,sizeof(buf));
|
||||
|
||||
if (t->std & V4L2_STD_525_60) {
|
||||
tuner_dbg("pinnacle ntsc\n");
|
||||
priv->radio_if2 = 41300 * 1000;
|
||||
} else {
|
||||
tuner_dbg("pinnacle pal\n");
|
||||
priv->radio_if2 = 33300 * 1000;
|
||||
}
|
||||
name = "unknown";
|
||||
|
||||
tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
|
||||
tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
|
||||
if (tuner_debug) {
|
||||
if (debug) {
|
||||
int i;
|
||||
tuner_dbg("MT20xx hexdump:");
|
||||
for(i=0;i<21;i++) {
|
||||
|
|
@ -556,10 +639,10 @@ int microtune_init(struct tuner *t)
|
|||
name = microtune_part[buf[0x13]];
|
||||
switch (buf[0x13]) {
|
||||
case MT2032:
|
||||
mt2032_init(t);
|
||||
mt2032_init(fe);
|
||||
break;
|
||||
case MT2050:
|
||||
mt2050_init(t);
|
||||
mt2050_init(fe);
|
||||
break;
|
||||
default:
|
||||
tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
|
||||
|
|
@ -567,11 +650,18 @@ int microtune_init(struct tuner *t)
|
|||
return 0;
|
||||
}
|
||||
|
||||
strlcpy(t->i2c.name, name, sizeof(t->i2c.name));
|
||||
strlcpy(fe->ops.tuner_ops.info.name, name,
|
||||
sizeof(fe->ops.tuner_ops.info.name));
|
||||
tuner_info("microtune %s found, OK\n",name);
|
||||
return 0;
|
||||
return fe;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(microtune_attach);
|
||||
|
||||
MODULE_DESCRIPTION("Microtune tuner driver");
|
||||
MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
/*
|
||||
* Overrides for Emacs so that we follow Linus's tabbing style.
|
||||
* ---------------------------------------------------------------------------
|
||||
|
|
|
|||
27
drivers/media/video/mt20xx.h
Normal file
27
drivers/media/video/mt20xx.h
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
/*
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef __MT20XX_H__
|
||||
#define __MT20XX_H__
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
extern struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter* i2c_adap,
|
||||
u8 i2c_addr);
|
||||
|
||||
#endif /* __MT20XX_H__ */
|
||||
|
|
@ -19,6 +19,7 @@
|
|||
#include <media/tuner.h>
|
||||
#include <media/v4l2-common.h>
|
||||
#include "tuner-driver.h"
|
||||
#include "mt20xx.h"
|
||||
#include "tda8290.h"
|
||||
|
||||
#define UNSET (-1U)
|
||||
|
|
@ -252,7 +253,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
|
|||
|
||||
switch (t->type) {
|
||||
case TUNER_MT2032:
|
||||
microtune_init(t);
|
||||
microtune_attach(&t->fe, t->i2c.adapter, t->i2c.addr);
|
||||
break;
|
||||
case TUNER_PHILIPS_TDA8290:
|
||||
{
|
||||
|
|
|
|||
|
|
@ -76,8 +76,6 @@ extern int default_tuner_init(struct tuner *t);
|
|||
|
||||
extern int tda9887_tuner_init(struct tuner *t);
|
||||
|
||||
extern int microtune_init(struct tuner *t);
|
||||
|
||||
extern int tea5761_tuner_init(struct tuner *t);
|
||||
extern int tea5761_autodetection(struct tuner *t);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue