consolidate all repos to one for archive

semester_4/namenska_programska_oprema/Naloga_6/xpo_modul.c

@@ -0,0 +1,116 @@
+#include <linux/atomic.h>
+#include <linux/cdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h> /* for sprintf() */
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/types.h>
+#include"xpo_modul.h"
+
+MODULE_AUTHOR("NIKOLA");
+MODULE_DESCRIPTION("Simple kernel driver skeleton");
+MODULE_LICENSE("GPL");
+
+
+static int major;	// major number of device driver
+#define DEVICE_NAME "xpo_modul"
+
+static struct class *cls;
+
+static int __init xpo_driver_init(void)
+{
+	pr_info("xpo: driver INIT\n");
+	
+	major = register_chrdev(0, DEVICE_NAME, &xpo_fops);
+
+	if (major < 0) {
+		pr_alert("xpo: registering char device failed with %d\n", major);
+		return major;
+	} else {
+		pr_info("xpo: registering char device %d\n", major);
+	}
+
+	cls = class_create(THIS_MODULE, DEVICE_NAME);
+
+    device_create(cls, NULL, MKDEV(major, 0), NULL, DEVICE_NAME);
+
+    pr_info("xpo: Device created on /dev/%s\n", DEVICE_NAME);
+
+	return 0;
+}
+
+static void xpo_driver_exit(void)
+{
+	pr_info("xpo: driver EXIT\n");
+
+	device_destroy(cls, MKDEV(major, 0));
+
+    class_destroy(cls);
+
+	unregister_chrdev(major, DEVICE_NAME);
+	
+	return ;
+}
+
+module_init(xpo_driver_init);
+module_exit(xpo_driver_exit);
+
+// abcdefghijklmnopqrstuvwxyz
+
+static unsigned char xpo_map[256] = 
+{
+	[0 ... 255] = 0,
+
+	[2] = '1',
+	[3] = '2',
+	[4] = '3',
+	[5] = '4',
+	[6] = '5',
+	[7] = '6',
+	[8] = '7',
+	[9] = '8',
+	[10] = '9',
+	[11] = '0',
+
+	[16] = 'q',
+	[17] = 'w',
+	[18] = 'e',
+	[19] = 'r',
+	[20] = 't',
+	[21] = 'z',
+	[22] = 'u',
+	[23] = 'i',
+	[24] = 'o',
+	[25] = 'p',
+
+	[30] = 'a',
+	[31] = 's',
+	[32] = 'd',
+	[33] = 'f',
+	[34] = 'g',
+	[35] = 'h',
+	[36] = 'j',
+	[37] = 'k',
+	[37] = 'l',
+	
+	[44] = 'y',
+	[45] = 'x',
+	[46] = 'c',
+	[47] = 'v',
+	[48] = 'b',
+	[49] = 'n',
+	[50] = 'm'
+};
+
+ssize_t xpo_read(struct file *filep, char *buff, size_t count, loff_t *offp )
+{
+	unsigned char c = inb(0x60);	// 0x60 - which key down 
+	char buf[20];
+	sprintf(buf, "%u - znak: %c", c, xpo_map[c]);
+	
+	printk("xpo - signal: %s\n", buf);
+
+	return 0;
+}