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#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <plat/gpio-cfg.h>
#include <mach/gpio.h>
extern struct class *sec_class;
struct device *slot_switch_dev;
static ssize_t get_slot_switch(struct device *dev, struct device_attribute *attr, char *buf)
{
int value;
//return '0' slot path is '||', return '1' slot path is 'X'
value = gpio_get_value(GPIO_UIM_SIM_SEL);
#if defined(CONFIG_MACH_T0_CHN_CTC)
if (system_rev <= 7)
value = (~value & 0x1);
#endif
printk("Current Slot is %x\n", value);
return sprintf(buf, "%d\n", value);
}
static ssize_t set_slot_switch(struct device *dev, struct device_attribute *attr, const char *buf, size_t size)
{
int value;
sscanf(buf, "%d", &value);
switch(value) {
case 0:
#if defined(CONFIG_MACH_T0_CHN_CTC)
if (system_rev <= 7)
gpio_set_value(GPIO_UIM_SIM_SEL, 1);
else
#endif
gpio_set_value(GPIO_UIM_SIM_SEL, 0);
printk("set slot switch to %x\n", gpio_get_value(GPIO_UIM_SIM_SEL));
break;
case 1:
#if defined(CONFIG_MACH_T0_CHN_CTC)
if (system_rev <= 7)
gpio_set_value(GPIO_UIM_SIM_SEL, 0);
else
#endif
gpio_set_value(GPIO_UIM_SIM_SEL, 1);
printk("set slot switch to %x\n", gpio_get_value(GPIO_UIM_SIM_SEL));
break;
default:
printk("Enter 0 or 1!!\n");
}
return size;
}
static DEVICE_ATTR(slot_sel, S_IRUGO | S_IWUSR | S_IWGRP,
get_slot_switch, set_slot_switch);
static int __init slot_switch_manager_init(void)
{
int ret = 0;
int err = 0;
printk("slot_switch_manager_init\n");
//initailize uim_sim_switch gpio
err = gpio_request(GPIO_UIM_SIM_SEL, "PDA_ACTIVE");
if (err) {
pr_err("fail to request gpio %s, gpio %d, errno %d\n",
"PDA_ACTIVE", GPIO_UIM_SIM_SEL, err);
} else {
gpio_direction_output(GPIO_UIM_SIM_SEL, 1);
s3c_gpio_setpull(GPIO_UIM_SIM_SEL, S3C_GPIO_PULL_NONE);
#if defined(CONFIG_MACH_T0_CHN_CTC)
if (system_rev <= 7)
gpio_set_value(GPIO_UIM_SIM_SEL, 1);
else
#endif
gpio_set_value(GPIO_UIM_SIM_SEL, 0);
}
//initailize slot switch device
slot_switch_dev = device_create(sec_class,
NULL, 0, NULL, "slot_switch");
if (IS_ERR(slot_switch_dev))
pr_err("Failed to create device(switch)!\n");
if (device_create_file(slot_switch_dev, &dev_attr_slot_sel) < 0)
pr_err("Failed to create device file(%s)!\n",
dev_attr_slot_sel.attr.name);
return ret;
}
static void __exit slot_switch_manager_exit(void)
{
}
module_init(slot_switch_manager_init);
module_exit(slot_switch_manager_exit);
MODULE_AUTHOR("SAMSUNG ELECTRONICS CO., LTD");
MODULE_DESCRIPTION("Slot Switch");
MODULE_LICENSE("GPL");
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