V4L/DVB (6131): tea5761: 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> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky
Mauro Carvalho Chehab
parent
96c0b7cfa5
commit
7ab10bf72a
@ -11,15 +11,19 @@
|
||||
#include <linux/delay.h>
|
||||
#include <linux/videodev.h>
|
||||
#include <media/tuner.h>
|
||||
#include "tuner-driver.h"
|
||||
#include "tuner-i2c.h"
|
||||
#include "tea5761.h"
|
||||
|
||||
#define PREFIX "TEA5761 "
|
||||
static int debug = 0;
|
||||
module_param(debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "enable verbose debug messages");
|
||||
|
||||
/* from tuner-core.c */
|
||||
extern int tuner_debug;
|
||||
#define PREFIX "tea5761 "
|
||||
|
||||
struct tea5761_priv {
|
||||
struct tuner_i2c_props i2c_props;
|
||||
|
||||
u32 frequency;
|
||||
};
|
||||
|
||||
/*****************************************************************************/
|
||||
@ -118,11 +122,6 @@ struct tea5761_priv {
|
||||
|
||||
/*****************************************************************************/
|
||||
|
||||
static void set_tv_freq(struct tuner *t, unsigned int freq)
|
||||
{
|
||||
tuner_warn("This tuner doesn't support TV freq.\n");
|
||||
}
|
||||
|
||||
#define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */
|
||||
static void tea5761_status_dump(unsigned char *buffer)
|
||||
{
|
||||
@ -137,16 +136,18 @@ static void tea5761_status_dump(unsigned char *buffer)
|
||||
}
|
||||
|
||||
/* Freq should be specifyed at 62.5 Hz */
|
||||
static void set_radio_freq(struct tuner *t, unsigned int frq)
|
||||
static int set_radio_freq(struct dvb_frontend *fe,
|
||||
struct analog_parameters *params)
|
||||
{
|
||||
struct tea5761_priv *priv = t->priv;
|
||||
struct tea5761_priv *priv = fe->tuner_priv;
|
||||
unsigned int frq = params->frequency;
|
||||
unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };
|
||||
unsigned div;
|
||||
int rc;
|
||||
|
||||
tuner_dbg (PREFIX "radio freq counter %d\n", frq);
|
||||
tuner_dbg("radio freq counter %d\n", frq);
|
||||
|
||||
if (t->mode == T_STANDBY) {
|
||||
if (params->mode == T_STANDBY) {
|
||||
tuner_dbg("TEA5761 set to standby mode\n");
|
||||
buffer[5] |= TEA5761_TNCTRL_MU;
|
||||
} else {
|
||||
@ -154,10 +155,9 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
|
||||
}
|
||||
|
||||
|
||||
if (t->audmode == V4L2_TUNER_MODE_MONO) {
|
||||
if (params->audmode == V4L2_TUNER_MODE_MONO) {
|
||||
tuner_dbg("TEA5761 set to mono\n");
|
||||
buffer[5] |= TEA5761_TNCTRL_MST;
|
||||
;
|
||||
} else {
|
||||
tuner_dbg("TEA5761 set to stereo\n");
|
||||
}
|
||||
@ -166,18 +166,22 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
|
||||
buffer[1] = (div >> 8) & 0x3f;
|
||||
buffer[2] = div & 0xff;
|
||||
|
||||
if (tuner_debug)
|
||||
if (debug)
|
||||
tea5761_status_dump(buffer);
|
||||
|
||||
if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7)))
|
||||
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
|
||||
|
||||
priv->frequency = frq * 125 / 2;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tea5761_signal(struct tuner *t)
|
||||
static int tea5761_signal(struct dvb_frontend *fe)
|
||||
{
|
||||
unsigned char buffer[16];
|
||||
int rc;
|
||||
struct tea5761_priv *priv = t->priv;
|
||||
struct tea5761_priv *priv = fe->tuner_priv;
|
||||
|
||||
memset(buffer, 0, sizeof(buffer));
|
||||
if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16)))
|
||||
@ -186,11 +190,11 @@ static int tea5761_signal(struct tuner *t)
|
||||
return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));
|
||||
}
|
||||
|
||||
static int tea5761_stereo(struct tuner *t)
|
||||
static int tea5761_stereo(struct dvb_frontend *fe)
|
||||
{
|
||||
unsigned char buffer[16];
|
||||
int rc;
|
||||
struct tea5761_priv *priv = t->priv;
|
||||
struct tea5761_priv *priv = fe->tuner_priv;
|
||||
|
||||
memset(buffer, 0, sizeof(buffer));
|
||||
if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16)))
|
||||
@ -203,58 +207,96 @@ static int tea5761_stereo(struct tuner *t)
|
||||
return (rc ? V4L2_TUNER_SUB_STEREO : 0);
|
||||
}
|
||||
|
||||
int tea5761_autodetection(struct tuner *t)
|
||||
static int tea5761_get_status(struct dvb_frontend *fe, u32 *status)
|
||||
{
|
||||
struct tea5761_priv *priv = fe->tuner_priv;
|
||||
int signal = tea5761_signal(fe);
|
||||
|
||||
*status = 0;
|
||||
|
||||
if (signal)
|
||||
*status = TUNER_STATUS_LOCKED;
|
||||
if (tea5761_stereo(fe))
|
||||
*status |= TUNER_STATUS_STEREO;
|
||||
|
||||
tuner_dbg("tea5761: Signal strength: %d\n", signal);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
|
||||
{
|
||||
unsigned char buffer[16];
|
||||
int rc;
|
||||
struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr };
|
||||
struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
|
||||
|
||||
if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
|
||||
tuner_warn("it is not a TEA5761. Received %i chars.\n", rc);
|
||||
printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc);
|
||||
return EINVAL;
|
||||
}
|
||||
|
||||
if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) {
|
||||
tuner_warn("Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);
|
||||
printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);
|
||||
return EINVAL;
|
||||
}
|
||||
tuner_warn("TEA5761 detected.\n");
|
||||
printk(KERN_WARNING "TEA5761 detected.\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void tea5761_release(struct tuner *t)
|
||||
static int tea5761_release(struct dvb_frontend *fe)
|
||||
{
|
||||
kfree(t->priv);
|
||||
t->priv = NULL;
|
||||
kfree(fe->tuner_priv);
|
||||
fe->tuner_priv = NULL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct tuner_operations tea5761_tuner_ops = {
|
||||
.set_tv_freq = set_tv_freq,
|
||||
.set_radio_freq = set_radio_freq,
|
||||
.has_signal = tea5761_signal,
|
||||
.is_stereo = tea5761_stereo,
|
||||
static int tea5761_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
||||
{
|
||||
struct tea5761_priv *priv = fe->tuner_priv;
|
||||
*frequency = priv->frequency;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct dvb_tuner_ops tea5761_tuner_ops = {
|
||||
.info = {
|
||||
.name = "tea5761", // Philips TEA5761HN FM Radio
|
||||
},
|
||||
.set_analog_params = set_radio_freq,
|
||||
.release = tea5761_release,
|
||||
.get_frequency = tea5761_get_frequency,
|
||||
.get_status = tea5761_get_status,
|
||||
};
|
||||
|
||||
int tea5761_tuner_init(struct tuner *t)
|
||||
struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter* i2c_adap,
|
||||
u8 i2c_addr)
|
||||
{
|
||||
struct tea5761_priv *priv = NULL;
|
||||
|
||||
if (tea5761_autodetection(t) == EINVAL)
|
||||
return EINVAL;
|
||||
if (tea5761_autodetection(i2c_adap, i2c_addr) == EINVAL)
|
||||
return NULL;
|
||||
|
||||
priv = kzalloc(sizeof(struct tea5761_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;
|
||||
|
||||
tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5761HN FM Radio");
|
||||
strlcpy(t->i2c.name, "tea5761", sizeof(t->i2c.name));
|
||||
memcpy(&fe->ops.tuner_ops, &tea5761_tuner_ops,
|
||||
sizeof(struct dvb_tuner_ops));
|
||||
|
||||
memcpy(&t->ops, &tea5761_tuner_ops, sizeof(struct tuner_operations));
|
||||
tuner_info("type set to %s\n", "Philips TEA5761HN FM Radio");
|
||||
|
||||
return (0);
|
||||
return fe;
|
||||
}
|
||||
|
||||
|
||||
EXPORT_SYMBOL_GPL(tea5761_attach);
|
||||
EXPORT_SYMBOL_GPL(tea5761_autodetection);
|
||||
|
||||
MODULE_DESCRIPTION("Philips TEA5761 FM tuner driver");
|
||||
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
28
drivers/media/video/tea5761.h
Normal file
28
drivers/media/video/tea5761.h
Normal file
@ -0,0 +1,28 @@
|
||||
/*
|
||||
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 __TEA5761_H__
|
||||
#define __TEA5761_H__
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
extern int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr);
|
||||
extern struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter* i2c_adap,
|
||||
u8 i2c_addr);
|
||||
|
||||
#endif /* __TEA5761_H__ */
|
||||
@ -21,6 +21,7 @@
|
||||
#include "tuner-driver.h"
|
||||
#include "mt20xx.h"
|
||||
#include "tda8290.h"
|
||||
#include "tea5761.h"
|
||||
|
||||
#define UNSET (-1U)
|
||||
|
||||
@ -270,7 +271,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
|
||||
break;
|
||||
#ifdef CONFIG_TUNER_TEA5761
|
||||
case TUNER_TEA5761:
|
||||
if (tea5761_tuner_init(t) == EINVAL) {
|
||||
if (tea5761_attach(&t->fe, t->i2c.adapter, t->i2c.addr) == NULL) {
|
||||
t->type = TUNER_ABSENT;
|
||||
t->mode_mask = T_UNINITIALIZED;
|
||||
return;
|
||||
@ -571,7 +572,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
|
||||
switch (addr) {
|
||||
#ifdef CONFIG_TUNER_TEA5761
|
||||
case 0x10:
|
||||
if (tea5761_autodetection(t) != EINVAL) {
|
||||
if (tea5761_autodetection(t->i2c.adapter, t->i2c.addr) != EINVAL) {
|
||||
t->type = TUNER_TEA5761;
|
||||
t->mode_mask = T_RADIO;
|
||||
t->mode = T_STANDBY;
|
||||
|
||||
@ -76,9 +76,6 @@ extern int default_tuner_init(struct tuner *t);
|
||||
|
||||
extern int tda9887_tuner_init(struct tuner *t);
|
||||
|
||||
extern int tea5761_tuner_init(struct tuner *t);
|
||||
extern int tea5761_autodetection(struct tuner *t);
|
||||
|
||||
extern int tea5767_autodetection(struct tuner *t);
|
||||
extern int tea5767_tuner_init(struct tuner *t);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user