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V4L/DVB (6556): tuner: convert to bus-based I2C API

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-11-04 11:03:36 -03:00 committed by Mauro Carvalho Chehab
parent 92de1f16d1
commit 9dd659de9f
9 changed files with 44 additions and 79 deletions
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2
drivers/media/video/mt20xx.c
View File

@ -14,7 +14,7 @@ static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "mt20xx "
#define PREFIX "mt20xx"
/* ---------------------------------------------------------------------- */

2
drivers/media/video/tda8290.c
View File

@ -31,7 +31,7 @@ static int tuner_debug;
module_param_named(debug, tuner_debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "tda8290 "
#define PREFIX "tda8290"
/* ---------------------------------------------------------------------- */

2
drivers/media/video/tea5761.c
View File

@ -18,7 +18,7 @@ static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "tea5761 "
#define PREFIX "tea5761"
struct tea5761_priv {
struct tuner_i2c_props i2c_props;

2
drivers/media/video/tea5767.c
View File

@ -20,7 +20,7 @@ static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "tea5767 "
#define PREFIX "tea5767"
/*****************************************************************************/

99
drivers/media/video/tuner-core.c
View File

@ -19,6 +19,7 @@
#include <media/tuner.h>
#include <media/tuner-types.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include "tuner-driver.h"
#include "mt20xx.h"
#include "tda8290.h"
@ -30,7 +31,7 @@
#define UNSET (-1U)
#define PREFIX "tuner "
#define PREFIX t->i2c->driver->driver.name
/* standard i2c insmod options */
static unsigned short normal_i2c[] = {
@ -75,9 +76,6 @@ MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
MODULE_LICENSE("GPL");
static struct i2c_driver driver;
static struct i2c_client client_template;
/* ---------------------------------------------------------------------- */
static void fe_set_freq(struct dvb_frontend *fe, unsigned int freq)
@ -919,18 +917,18 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
static int tuner_suspend(struct i2c_client *c, pm_message_t state)
{
struct tuner *t = i2c_get_clientdata (c);
struct tuner *t = i2c_get_clientdata(c);
tuner_dbg ("suspend\n");
tuner_dbg("suspend\n");
/* FIXME: power down ??? */
return 0;
}
static int tuner_resume(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata (c);
struct tuner *t = i2c_get_clientdata(c);
tuner_dbg ("resume\n");
tuner_dbg("resume\n");
if (V4L2_TUNER_RADIO == t->mode) {
if (t->radio_freq)
set_freq(c, t->radio_freq);
@ -946,7 +944,7 @@ static int tuner_resume(struct i2c_client *c)
LIST_HEAD(tuner_list);
/* Search for existing radio and/or TV tuners on the given I2C adapter.
Note that when this function is called from tuner_attach you can be
Note that when this function is called from tuner_probe you can be
certain no other devices will be added/deleted at the same time, I2C
core protects against that. */
static void tuner_lookup(struct i2c_adapter *adap,
@ -977,28 +975,19 @@ static void tuner_lookup(struct i2c_adapter *adap,
}
/* During client attach, set_type is called by adapter's attach_inform callback.
set_type must then be completed by tuner_attach.
set_type must then be completed by tuner_probe.
*/
static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
static int tuner_probe(struct i2c_client *client)
{
struct i2c_client *client;
struct tuner *t;
struct tuner *radio;
struct tuner *tv;
client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (NULL == client)
return -ENOMEM;
t = kzalloc(sizeof(struct tuner), GFP_KERNEL);
if (NULL == t) {
kfree(client);
if (NULL == t)
return -ENOMEM;
}
t->i2c = client;
client_template.adapter = adap;
client_template.addr = addr;
memcpy(client, &client_template, sizeof(struct i2c_client));
strlcpy(client->name, "(tuner unset)", sizeof(client->name));
i2c_set_clientdata(client, t);
t->type = UNSET;
t->audmode = V4L2_TUNER_MODE_STEREO;
@ -1015,14 +1004,16 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
printk(KERN_CONT "%02x ", buffer[i]);
printk("\n");
}
/* HACK: This test were added to avoid tuner to probe tda9840 and
/* HACK: This test was added to avoid tuner to probe tda9840 and
tea6415c on the MXB card */
if (adap->id == I2C_HW_SAA7146 && addr < 0x4a)
if (client->adapter->id == I2C_HW_SAA7146 && client->addr < 0x4a) {
kfree(t);
return -ENODEV;
}
/* autodetection code based on the i2c addr */
if (!no_autodetect) {
switch (addr) {
switch (client->addr) {
case 0x10:
if (tea5761_autodetection(t->i2c->adapter, t->i2c->addr)
!= EINVAL) {
@ -1092,7 +1083,8 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
/* Should be just before return */
register_client:
tuner_info("chip found @ 0x%x (%s)\n", addr << 1, adap->name);
tuner_info("chip found @ 0x%x (%s)\n", client->addr << 1,
client->adapter->name);
/* Sets a default mode */
if (t->mode_mask & T_ANALOG_TV) {
@ -1102,19 +1094,21 @@ register_client:
} else {
t->mode = T_DIGITAL_TV;
}
i2c_attach_client(client);
set_type(client, t->type, t->mode_mask, t->config, t->tuner_callback);
list_add_tail(&t->list, &tuner_list);
return 0;
}
static int tuner_probe(struct i2c_adapter *adap)
static int tuner_legacy_probe(struct i2c_adapter *adap)
{
if (0 != addr) {
normal_i2c[0] = addr;
normal_i2c[1] = I2C_CLIENT_END;
}
if ((adap->class & I2C_CLASS_TV_ANALOG) == 0)
return 0;
/* HACK: Ignore 0x6b and 0x6f on cx88 boards.
* FusionHDTV5 RT Gold has an ir receiver at 0x6b
* and an RTC at 0x6f which can get corrupted if probed.
@ -1136,64 +1130,35 @@ static int tuner_probe(struct i2c_adapter *adap)
"too many options specified "
"in i2c probe ignore list!\n");
}
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, tuner_attach);
return 0;
return 1;
}
static int tuner_detach(struct i2c_client *client)
static int tuner_remove(struct i2c_client *client)
{
struct tuner *t = i2c_get_clientdata(client);
struct analog_tuner_ops *ops = t->fe.ops.analog_demod_ops;
int err;
err = i2c_detach_client(t->i2c);
if (err) {
tuner_warn
("Client deregistration failed, client not detached.\n");
return err;
}
if (ops && ops->release)
ops->release(&t->fe);
list_del(&t->list);
kfree(t);
kfree(client);
return 0;
}
/* ----------------------------------------------------------------------- */
static struct i2c_driver driver = {
.id = I2C_DRIVERID_TUNER,
.attach_adapter = tuner_probe,
.detach_client = tuner_detach,
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "tuner",
.driverid = I2C_DRIVERID_TUNER,
.command = tuner_command,
.probe = tuner_probe,
.remove = tuner_remove,
.suspend = tuner_suspend,
.resume = tuner_resume,
.driver = {
.name = "tuner",
},
};
static struct i2c_client client_template = {
.name = "(tuner unset)",
.driver = &driver,
.resume = tuner_resume,
.legacy_probe = tuner_legacy_probe,
};
static int __init tuner_init_module(void)
{
return i2c_add_driver(&driver);
}
static void __exit tuner_cleanup_module(void)
{
i2c_del_driver(&driver);
}
module_init(tuner_init_module);
module_exit(tuner_cleanup_module);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.

6
drivers/media/video/tuner-driver.h
View File

@ -72,15 +72,15 @@ struct tuner {
/* ------------------------------------------------------------------------ */
#define tuner_warn(fmt, arg...) do {\
printk(KERN_WARNING PREFIX "%d-%04x: " fmt, \
printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
#define tuner_info(fmt, arg...) do {\
printk(KERN_INFO PREFIX "%d-%04x: " fmt, \
printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
#define tuner_dbg(fmt, arg...) do {\
extern int tuner_debug; \
if (tuner_debug) \
printk(KERN_DEBUG PREFIX "%d-%04x: " fmt, \
printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
#endif /* __TUNER_DRIVER_H__ */

6
drivers/media/video/tuner-i2c.h
View File

@ -48,14 +48,14 @@ static inline int tuner_i2c_xfer_recv(struct tuner_i2c_props *props, char *buf,
#ifndef __TUNER_DRIVER_H__
#define tuner_warn(fmt, arg...) do {\
printk(KERN_WARNING PREFIX "%d-%04x: " fmt, \
printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
#define tuner_info(fmt, arg...) do {\
printk(KERN_INFO PREFIX "%d-%04x: " fmt, \
printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
#define tuner_dbg(fmt, arg...) do {\
if ((debug)) \
printk(KERN_DEBUG PREFIX "%d-%04x: " fmt, \
printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX, \
i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr , ##arg); } while (0)
#endif /* __TUNER_DRIVER_H__ */

2
drivers/media/video/tuner-simple.c
View File

@ -17,7 +17,7 @@ static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
#define PREFIX "tuner-simple "
#define PREFIX "tuner-simple"
static int offset = 0;
module_param(offset, int, 0664);

2
drivers/media/video/tuner-xc2028.c
View File

@ -22,7 +22,7 @@
#include <linux/dvb/frontend.h>
#include "dvb_frontend.h"
#define PREFIX "xc2028 "
#define PREFIX "xc2028"
static LIST_HEAD(xc2028_list);
/* struct for storing firmware table */