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#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include "radio-si4709_dev.h"
#include "radio-si4709_common.h"
/*extern functions*/
int Si4709_i2c_drv_init(void);
void Si4709_i2c_drv_exit(void);
/*static functions*/
static int Si4709_probe (struct i2c_client *);
static int Si4709_remove(struct i2c_client *);
static int Si4709_suspend(struct i2c_client *, pm_message_t mesg);
static int Si4709_resume(struct i2c_client *);
static struct i2c_client *Si4709_i2c_client;
struct si4709_data {
struct i2c_client *client;
};
/*I2C Setting*/
#define SI4709_I2C_ADDRESS 0x20
static unsigned short Si4709_normal_i2c[] = { I2C_CLIENT_END };
static struct i2c_driver Si4709_i2c_driver;
static const struct i2c_device_id si4709_id[] = {
{"Si4709", 0},
{}
};
static int Si4709_probe (struct i2c_client *client)
{
int ret = 0;
debug("Si4709 i2c driver Si4709_probe called");
if( strcmp(client->name, "Si4709") != 0 )
{
ret = -1;
debug("Si4709_probe: device not supported");
}
else if( (ret = Si4709_dev_init(client)) < 0 )
{
debug("Si4709_dev_init failed");
}
return ret;
}
static int Si4709_remove(struct i2c_client *client)
{
int ret = 0;
debug("Si4709 i2c driver Si4709_remove called");
if( strcmp(client->name, "Si4709") != 0 )
{
ret = -1;
debug("Si4709_remove: device not supported");
}
else if( (ret = Si4709_dev_exit()) < 0 )
{
debug("Si4709_dev_exit failed");
}
return ret;
}
static int __devinit si4709_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int err = 0;
struct si4709_data *si4709_dev;
debug("----- %s %d\n", __func__, __LINE__);
si4709_dev = kzalloc(sizeof(struct si4709_data), GFP_KERNEL);
if(!si4709_dev)
{
err = -ENOMEM;
return err;
}
Si4709_i2c_client = client;
i2c_set_clientdata(client, si4709_dev);
if(Si4709_i2c_client == NULL)
{
error("Si4709 i2c_client is NULL");
return -ENODEV;
}
Si4709_probe(Si4709_i2c_client);
return 0;
}
static int __devexit si4709_i2c_remove(struct i2c_client *client)
{
struct si4709_data *si4709_dev = i2c_get_clientdata(client);
printk("----- %s %d\n", __func__, __LINE__);
Si4709_remove(Si4709_i2c_client);
kfree(si4709_dev);
kfree(client);
si4709_dev = NULL;
Si4709_i2c_client = NULL;
return 0;
}
MODULE_DEVICE_TABLE(i2c, si4709_id);
static struct i2c_driver Si4709_i2c_driver =
{
.driver = {
.owner = THIS_MODULE,
.name = "Si4709",
},
.id_table = si4709_id,
.probe = si4709_i2c_probe,
.remove = __devexit_p(si4709_i2c_remove),
.suspend = Si4709_suspend,
.resume = Si4709_resume,
.address_list = Si4709_normal_i2c,
};
static int Si4709_suspend(struct i2c_client *client, pm_message_t mesg)
{
int ret = 0;
debug("Si4709 i2c driver Si4709_suspend called");
if( strcmp(client->name, "Si4709") != 0 )
{
ret = -1;
debug("Si4709_suspend: device not supported");
}
else if( (ret = Si4709_dev_suspend()) < 0 )
{
debug("Si4709_dev_disable failed");
}
return 0;
}
static int Si4709_resume(struct i2c_client *client)
{
int ret = 0;
// debug("Si4709 i2c driver Si4709_resume called");
if( strcmp(client->name, "Si4709") != 0 )
{
ret = -1;
debug("Si4709_resume: device not supported");
}
else if( (ret = Si4709_dev_resume()) < 0 )
{
debug("Si4709_dev_enable failed");
}
return 0;
}
int Si4709_i2c_drv_init(void)
{
int ret = 0;
debug("Si4709 i2c driver Si4709_i2c_driver_init called");
if ( (ret = i2c_add_driver(&Si4709_i2c_driver) < 0) )
{
error("Si4709 i2c_add_driver failed");
}
return ret;
}
void Si4709_i2c_drv_exit(void)
{
debug("Si4709 i2c driver Si4709_i2c_driver_exit called");
i2c_del_driver(&Si4709_i2c_driver);
}
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