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V4L/DVB (6130): mt20xx: convert from tuner sub-driver into dvb_frontend module

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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 2007-08-27 21:23:08 -03:00 committed by Mauro Carvalho Chehab
parent 910bb3e3c5
commit 96c0b7cfa5
4 changed files with 197 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

246
drivers/media/video/mt20xx.c
View File

@ -1,12 +1,20 @@
/* /*
*
* i2c tv tuner chip device driver * i2c tv tuner chip device driver
* controls microtune tuners, mt2032 + mt2050 at the moment. * controls microtune tuners, mt2032 + mt2050 at the moment.
*
* This "mt20xx" module was split apart from the original "tuner" module.
*/ */
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/videodev.h> #include <linux/videodev.h>
#include "tuner-driver.h" #include "tuner-i2c.h"
#include "mt20xx.h"
static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "mt20xx "
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
@ -19,9 +27,6 @@ module_param(tv_antenna, int, 0644);
static unsigned int radio_antenna = 0; static unsigned int radio_antenna = 0;
module_param(radio_antenna, int, 0644); module_param(radio_antenna, int, 0644);
/* from tuner-core.c */
extern int tuner_debug;
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
#define MT2032 0x04 #define MT2032 0x04
@ -40,19 +45,31 @@ struct microtune_priv {
struct tuner_i2c_props i2c_props; struct tuner_i2c_props i2c_props;
unsigned int xogc; unsigned int xogc;
unsigned int radio_if2; //unsigned int radio_if2;
u32 frequency;
}; };
static void microtune_release(struct tuner *t) static int microtune_release(struct dvb_frontend *fe)
{ {
kfree(t->priv); kfree(fe->tuner_priv);
t->priv = NULL; fe->tuner_priv = NULL;
return 0;
}
static int microtune_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct microtune_priv *priv = fe->tuner_priv;
*frequency = priv->frequency;
return 0;
} }
// IsSpurInBand()? // IsSpurInBand()?
static int mt2032_spurcheck(struct tuner *t, static int mt2032_spurcheck(struct dvb_frontend *fe,
int f1, int f2, int spectrum_from,int spectrum_to) int f1, int f2, int spectrum_from,int spectrum_to)
{ {
struct microtune_priv *priv = fe->tuner_priv;
int n1=1,n2,f; int n1=1,n2,f;
f1=f1/1000; //scale to kHz to avoid 32bit overflows f1=f1/1000; //scale to kHz to avoid 32bit overflows
@ -80,7 +97,7 @@ static int mt2032_spurcheck(struct tuner *t,
return 1; return 1;
} }
static int mt2032_compute_freq(struct tuner *t, static int mt2032_compute_freq(struct dvb_frontend *fe,
unsigned int rfin, unsigned int rfin,
unsigned int if1, unsigned int if2, unsigned int if1, unsigned int if2,
unsigned int spectrum_from, unsigned int spectrum_from,
@ -89,6 +106,7 @@ static int mt2032_compute_freq(struct tuner *t,
int *ret_sel, int *ret_sel,
unsigned int xogc) //all in Hz unsigned int xogc) //all in Hz
{ {
struct microtune_priv *priv = fe->tuner_priv;
unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1, unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq; desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
@ -138,7 +156,7 @@ static int mt2032_compute_freq(struct tuner *t,
return(-1); return(-1);
} }
mt2032_spurcheck(t, lo1freq, desired_lo2, spectrum_from, spectrum_to); mt2032_spurcheck(fe, lo1freq, desired_lo2, spectrum_from, spectrum_to);
// should recalculate lo1 (one step up/down) // should recalculate lo1 (one step up/down)
// set up MT2032 register map for transfer over i2c // set up MT2032 register map for transfer over i2c
@ -162,9 +180,9 @@ static int mt2032_compute_freq(struct tuner *t,
return 0; return 0;
} }
static int mt2032_check_lo_lock(struct tuner *t) static int mt2032_check_lo_lock(struct dvb_frontend *fe)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
int try,lock=0; int try,lock=0;
unsigned char buf[2]; unsigned char buf[2];
@ -184,9 +202,9 @@ static int mt2032_check_lo_lock(struct tuner *t)
return lock; return lock;
} }
static int mt2032_optimize_vco(struct tuner *t,int sel,int lock) static int mt2032_optimize_vco(struct dvb_frontend *fe,int sel,int lock)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[2]; unsigned char buf[2];
int tad1; int tad1;
@ -216,18 +234,18 @@ static int mt2032_optimize_vco(struct tuner *t,int sel,int lock)
buf[0]=0x0f; buf[0]=0x0f;
buf[1]=sel; buf[1]=sel;
tuner_i2c_xfer_send(&priv->i2c_props,buf,2); tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
lock=mt2032_check_lo_lock(t); lock=mt2032_check_lo_lock(fe);
return lock; return lock;
} }
static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin, static void mt2032_set_if_freq(struct dvb_frontend *fe, unsigned int rfin,
unsigned int if1, unsigned int if2, unsigned int if1, unsigned int if2,
unsigned int from, unsigned int to) unsigned int from, unsigned int to)
{ {
unsigned char buf[21]; unsigned char buf[21];
int lint_try,ret,sel,lock=0; int lint_try,ret,sel,lock=0;
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n", tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",
rfin,if1,if2,from,to); rfin,if1,if2,from,to);
@ -237,7 +255,7 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
tuner_i2c_xfer_recv(&priv->i2c_props,buf,21); tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
buf[0]=0; buf[0]=0;
ret=mt2032_compute_freq(t,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc); ret=mt2032_compute_freq(fe,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc);
if (ret<0) if (ret<0)
return; return;
@ -253,10 +271,10 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
// wait for PLLs to lock (per manual), retry LINT if not. // wait for PLLs to lock (per manual), retry LINT if not.
for(lint_try=0; lint_try<2; lint_try++) { for(lint_try=0; lint_try<2; lint_try++) {
lock=mt2032_check_lo_lock(t); lock=mt2032_check_lo_lock(fe);
if(optimize_vco) if(optimize_vco)
lock=mt2032_optimize_vco(t,sel,lock); lock=mt2032_optimize_vco(fe,sel,lock);
if(lock==6) break; if(lock==6) break;
tuner_dbg("mt2032: re-init PLLs by LINT\n"); tuner_dbg("mt2032: re-init PLLs by LINT\n");
@ -279,12 +297,13 @@ static void mt2032_set_if_freq(struct tuner *t, unsigned int rfin,
} }
static void mt2032_set_tv_freq(struct tuner *t, unsigned int freq) static int mt2032_set_tv_freq(struct dvb_frontend *fe,
struct analog_parameters *params)
{ {
int if2,from,to; int if2,from,to;
// signal bandwidth and picture carrier // signal bandwidth and picture carrier
if (t->std & V4L2_STD_525_60) { if (params->std & V4L2_STD_525_60) {
// NTSC // NTSC
from = 40750*1000; from = 40750*1000;
to = 46750*1000; to = 46750*1000;
@ -296,30 +315,64 @@ static void mt2032_set_tv_freq(struct tuner *t, unsigned int freq)
if2 = 38900*1000; if2 = 38900*1000;
} }
mt2032_set_if_freq(t, freq*62500 /* freq*1000*1000/16 */, mt2032_set_if_freq(fe, params->frequency*62500,
1090*1000*1000, if2, from, to); 1090*1000*1000, if2, from, to);
return 0;
} }
static void mt2032_set_radio_freq(struct tuner *t, unsigned int freq) static int mt2032_set_radio_freq(struct dvb_frontend *fe,
struct analog_parameters *params)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
int if2 = priv->radio_if2; int if2;
if (params->std & V4L2_STD_525_60) {
tuner_dbg("pinnacle ntsc\n");
if2 = 41300 * 1000;
} else {
tuner_dbg("pinnacle pal\n");
if2 = 33300 * 1000;
}
// per Manual for FM tuning: first if center freq. 1085 MHz // per Manual for FM tuning: first if center freq. 1085 MHz
mt2032_set_if_freq(t, freq * 1000 / 16, mt2032_set_if_freq(fe, params->frequency * 125 / 2,
1085*1000*1000,if2,if2,if2); 1085*1000*1000,if2,if2,if2);
return 0;
} }
static struct tuner_operations mt2032_tuner_ops = { static int mt2032_set_params(struct dvb_frontend *fe,
.set_tv_freq = mt2032_set_tv_freq, struct analog_parameters *params)
.set_radio_freq = mt2032_set_radio_freq, {
.release = microtune_release, struct microtune_priv *priv = fe->tuner_priv;
int ret = -EINVAL;
switch (params->mode) {
case V4L2_TUNER_RADIO:
ret = mt2032_set_radio_freq(fe, params);
priv->frequency = params->frequency * 125 / 2;
break;
case V4L2_TUNER_ANALOG_TV:
case V4L2_TUNER_DIGITAL_TV:
ret = mt2032_set_tv_freq(fe, params);
priv->frequency = params->frequency * 62500;
break;
}
return ret;
}
static struct dvb_tuner_ops mt2032_tuner_ops = {
.set_analog_params = mt2032_set_params,
.release = microtune_release,
.get_frequency = microtune_get_frequency,
}; };
// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001 // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
static int mt2032_init(struct tuner *t) static int mt2032_init(struct dvb_frontend *fe)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[21]; unsigned char buf[21];
int ret,xogc,xok=0; int ret,xogc,xok=0;
@ -368,14 +421,14 @@ static int mt2032_init(struct tuner *t)
} while (xok != 1 ); } while (xok != 1 );
priv->xogc=xogc; priv->xogc=xogc;
memcpy(&t->ops, &mt2032_tuner_ops, sizeof(struct tuner_operations)); memcpy(&fe->ops.tuner_ops, &mt2032_tuner_ops, sizeof(struct dvb_tuner_ops));
return(1); return(1);
} }
static void mt2050_set_antenna(struct tuner *t, unsigned char antenna) static void mt2050_set_antenna(struct dvb_frontend *fe, unsigned char antenna)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[2]; unsigned char buf[2];
int ret; int ret;
@ -385,9 +438,9 @@ static void mt2050_set_antenna(struct tuner *t, unsigned char antenna)
tuner_dbg("mt2050: enabled antenna connector %d\n", antenna); tuner_dbg("mt2050: enabled antenna connector %d\n", antenna);
} }
static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int if2) static void mt2050_set_if_freq(struct dvb_frontend *fe,unsigned int freq, unsigned int if2)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
unsigned int if1=1218*1000*1000; unsigned int if1=1218*1000*1000;
unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b; unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
int ret; int ret;
@ -419,7 +472,7 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
div2a=(lo2/8)-1; div2a=(lo2/8)-1;
div2b=lo2-(div2a+1)*8; div2b=lo2-(div2a+1)*8;
if (tuner_debug > 1) { if (debug > 1) {
tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2); tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2);
tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n", tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",
num1,num2,div1a,div1b,div2a,div2b); num1,num2,div1a,div1b,div2a,div2b);
@ -435,7 +488,7 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
buf[5]=div2a; buf[5]=div2a;
if(num2!=0) buf[5]=buf[5]|0x40; if(num2!=0) buf[5]=buf[5]|0x40;
if (tuner_debug > 1) { if (debug > 1) {
int i; int i;
tuner_dbg("bufs is: "); tuner_dbg("bufs is: ");
for(i=0;i<6;i++) for(i=0;i<6;i++)
@ -448,43 +501,78 @@ static void mt2050_set_if_freq(struct tuner *t,unsigned int freq, unsigned int i
tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret); tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
} }
static void mt2050_set_tv_freq(struct tuner *t, unsigned int freq) static int mt2050_set_tv_freq(struct dvb_frontend *fe,
struct analog_parameters *params)
{ {
unsigned int if2; unsigned int if2;
if (t->std & V4L2_STD_525_60) { if (params->std & V4L2_STD_525_60) {
// NTSC // NTSC
if2 = 45750*1000; if2 = 45750*1000;
} else { } else {
// PAL // PAL
if2 = 38900*1000; if2 = 38900*1000;
} }
if (V4L2_TUNER_DIGITAL_TV == t->mode) { if (V4L2_TUNER_DIGITAL_TV == params->mode) {
// DVB (pinnacle 300i) // DVB (pinnacle 300i)
if2 = 36150*1000; if2 = 36150*1000;
} }
mt2050_set_if_freq(t, freq*62500, if2); mt2050_set_if_freq(fe, params->frequency*62500, if2);
mt2050_set_antenna(t, tv_antenna); mt2050_set_antenna(fe, tv_antenna);
return 0;
} }
static void mt2050_set_radio_freq(struct tuner *t, unsigned int freq) static int mt2050_set_radio_freq(struct dvb_frontend *fe,
struct analog_parameters *params)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
int if2 = priv->radio_if2; int if2;
mt2050_set_if_freq(t, freq * 1000 / 16, if2); if (params->std & V4L2_STD_525_60) {
mt2050_set_antenna(t, radio_antenna); tuner_dbg("pinnacle ntsc\n");
if2 = 41300 * 1000;
} else {
tuner_dbg("pinnacle pal\n");
if2 = 33300 * 1000;
}
mt2050_set_if_freq(fe, params->frequency * 125 / 2, if2);
mt2050_set_antenna(fe, radio_antenna);
return 0;
} }
static struct tuner_operations mt2050_tuner_ops = { static int mt2050_set_params(struct dvb_frontend *fe,
.set_tv_freq = mt2050_set_tv_freq, struct analog_parameters *params)
.set_radio_freq = mt2050_set_radio_freq, {
.release = microtune_release, struct microtune_priv *priv = fe->tuner_priv;
int ret = -EINVAL;
switch (params->mode) {
case V4L2_TUNER_RADIO:
ret = mt2050_set_radio_freq(fe, params);
priv->frequency = params->frequency * 125 / 2;
break;
case V4L2_TUNER_ANALOG_TV:
case V4L2_TUNER_DIGITAL_TV:
ret = mt2050_set_tv_freq(fe, params);
priv->frequency = params->frequency * 62500;
break;
}
return ret;
}
static struct dvb_tuner_ops mt2050_tuner_ops = {
.set_analog_params = mt2050_set_params,
.release = microtune_release,
.get_frequency = microtune_get_frequency,
}; };
static int mt2050_init(struct tuner *t) static int mt2050_init(struct dvb_frontend *fe)
{ {
struct microtune_priv *priv = t->priv; struct microtune_priv *priv = fe->tuner_priv;
unsigned char buf[2]; unsigned char buf[2];
int ret; int ret;
@ -502,12 +590,14 @@ static int mt2050_init(struct tuner *t)
tuner_dbg("mt2050: sro is %x\n",buf[0]); tuner_dbg("mt2050: sro is %x\n",buf[0]);
memcpy(&t->ops, &mt2050_tuner_ops, sizeof(struct tuner_operations)); memcpy(&fe->ops.tuner_ops, &mt2050_tuner_ops, sizeof(struct dvb_tuner_ops));
return 0; 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; struct microtune_priv *priv = NULL;
char *name; char *name;
@ -516,28 +606,21 @@ int microtune_init(struct tuner *t)
priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL); priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL);
if (priv == NULL) if (priv == NULL)
return -ENOMEM; return NULL;
t->priv = priv; fe->tuner_priv = priv;
priv->i2c_props.addr = t->i2c.addr; priv->i2c_props.addr = i2c_addr;
priv->i2c_props.adap = t->i2c.adapter; 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)); 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"; name = "unknown";
tuner_i2c_xfer_send(&priv->i2c_props,buf,1); tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
tuner_i2c_xfer_recv(&priv->i2c_props,buf,21); tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
if (tuner_debug) { if (debug) {
int i; int i;
tuner_dbg("MT20xx hexdump:"); tuner_dbg("MT20xx hexdump:");
for(i=0;i<21;i++) { for(i=0;i<21;i++) {
@ -556,10 +639,10 @@ int microtune_init(struct tuner *t)
name = microtune_part[buf[0x13]]; name = microtune_part[buf[0x13]];
switch (buf[0x13]) { switch (buf[0x13]) {
case MT2032: case MT2032:
mt2032_init(t); mt2032_init(fe);
break; break;
case MT2050: case MT2050:
mt2050_init(t); mt2050_init(fe);
break; break;
default: default:
tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n", tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
@ -567,11 +650,18 @@ int microtune_init(struct tuner *t)
return 0; 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); 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. * Overrides for Emacs so that we follow Linus's tabbing style.
* --------------------------------------------------------------------------- * ---------------------------------------------------------------------------

27
drivers/media/video/mt20xx.h Normal file
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@ -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__ */

3
drivers/media/video/tuner-core.c
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@ -19,6 +19,7 @@
#include <media/tuner.h> #include <media/tuner.h>
#include <media/v4l2-common.h> #include <media/v4l2-common.h>
#include "tuner-driver.h" #include "tuner-driver.h"
#include "mt20xx.h"
#include "tda8290.h" #include "tda8290.h"
#define UNSET (-1U) #define UNSET (-1U)
@ -252,7 +253,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
switch (t->type) { switch (t->type) {
case TUNER_MT2032: case TUNER_MT2032:
microtune_init(t); microtune_attach(&t->fe, t->i2c.adapter, t->i2c.addr);
break; break;
case TUNER_PHILIPS_TDA8290: case TUNER_PHILIPS_TDA8290:
{ {

2
drivers/media/video/tuner-driver.h
View File

@ -76,8 +76,6 @@ extern int default_tuner_init(struct tuner *t);
extern int tda9887_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_tuner_init(struct tuner *t);
extern int tea5761_autodetection(struct tuner *t); extern int tea5761_autodetection(struct tuner *t);