1 #include <linux/types.h>
2 #include <linux/init.h>
3 #include <linux/module.h>
4 #include <linux/moduleparam.h>
5 #include <linux/input.h>
6 #include <linux/proc_fs.h>
7 #include <asm/bitops.h>
11 #define UP_TIMEOUT (HZ/4)
13 /* enable ir debugging by or'ing av7110_debug with 16 */
15 static struct input_dev input_dev;
19 static u16 key_map [256] = {
20 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
21 KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
22 KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
23 KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
24 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
25 0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
26 0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
27 KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
28 KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
29 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
30 KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
31 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
32 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
33 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
34 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
35 0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
36 0, 0, 0, 0, KEY_EPG, 0, 0, 0,
37 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
38 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
39 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
43 static void av7110_emit_keyup (unsigned long data)
45 if (!data || !test_bit (data, input_dev.key))
48 input_event (&input_dev, EV_KEY, data, !!0);
52 static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
55 static void av7110_emit_key (u32 ircom)
59 static u16 old_toggle = 0;
63 /* extract device address and data */
64 if (ir_config & 0x0001) {
65 /* TODO RCMM: ? bits device address, 8 bits data */
67 addr = (ircom >> 8) & 0xff;
69 /* RC5: 5 bits device address, 6 bits data */
71 addr = (ircom >> 6) & 0x1f;
74 keycode = key_map[data];
76 dprintk(16, "#########%08x######### addr %i data 0x%02x (keycode %i)\n",
77 ircom, addr, data, keycode);
79 /* check device address (if selected) */
80 if (ir_config & 0x4000)
81 if (addr != ((ir_config >> 16) & 0xff))
85 printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
89 if (ir_config & 0x0001)
90 new_toggle = 0; /* RCMM */
92 new_toggle = (ircom & 0x800); /* RC5 */
94 if (timer_pending (&keyup_timer)) {
95 del_timer (&keyup_timer);
96 if (keyup_timer.data != keycode || new_toggle != old_toggle) {
97 input_event (&input_dev, EV_KEY, keyup_timer.data, !!0);
98 input_event (&input_dev, EV_KEY, keycode, !0);
100 input_event (&input_dev, EV_KEY, keycode, 2);
103 input_event (&input_dev, EV_KEY, keycode, !0);
105 keyup_timer.expires = jiffies + UP_TIMEOUT;
106 keyup_timer.data = keycode;
108 add_timer (&keyup_timer);
110 old_toggle = new_toggle;
113 static void input_register_keys (void)
117 memset (input_dev.keybit, 0, sizeof(input_dev.keybit));
119 for (i=0; i<sizeof(key_map)/sizeof(key_map[0]); i++) {
120 if (key_map[i] > KEY_MAX)
122 else if (key_map[i] > KEY_RESERVED)
123 set_bit (key_map[i], input_dev.keybit);
128 static void input_repeat_key(unsigned long data)
130 /* dummy routine to disable autorepeat in the input driver */
134 static int av7110_ir_write_proc (struct file *file, const char __user *buffer,
135 unsigned long count, void *data)
138 int size = 4 + 256 * sizeof(u16);
143 page = (char *)vmalloc(size);
147 if (copy_from_user(page, buffer, size)) {
152 memcpy (&ir_config, page, 4);
153 memcpy (&key_map, page + 4, 256 * sizeof(u16));
157 av7110_setup_irc_config (NULL, ir_config);
159 input_register_keys ();
165 int __init av7110_ir_init (void)
167 static struct proc_dir_entry *e;
169 init_timer (&keyup_timer);
170 keyup_timer.data = 0;
172 input_dev.name = "DVB on-card IR receiver";
177 set_bit (EV_KEY, input_dev.evbit);
178 set_bit (EV_REP, input_dev.evbit);
180 input_register_keys ();
182 input_register_device(&input_dev);
183 input_dev.timer.function = input_repeat_key;
185 av7110_setup_irc_config (NULL, 0x0001);
186 av7110_register_irc_handler (av7110_emit_key);
188 e = create_proc_entry ("av7110_ir", S_IFREG | S_IRUGO | S_IWUSR, NULL);
191 e->write_proc = av7110_ir_write_proc;
192 e->size = 4 + 256 * sizeof(u16);
199 void __exit av7110_ir_exit (void)
201 del_timer_sync(&keyup_timer);
202 remove_proc_entry ("av7110_ir", NULL);
203 av7110_unregister_irc_handler (av7110_emit_key);
204 input_unregister_device(&input_dev);
207 //MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
208 //MODULE_LICENSE("GPL");