1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/misc/modem_if/modem_sim_slot_switch.c b/drivers/misc/modem_if/modem_sim_slot_switch.c
new file mode 100644
index 0000000..1dd4c67
--- /dev/null
+++ b/drivers/misc/modem_if/modem_sim_slot_switch.c
@@ -0,0 +1,92 @@
+#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);
+	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:
+			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:
+			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_IWUGO | S_IRUSR | S_IWUSR, 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)
+		gpio_set_value(GPIO_UIM_SIM_SEL, 1);
+#else
+		gpio_set_value(GPIO_UIM_SIM_SEL, 0);
+#endif
+	}
+
+	//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");