#include <linux/types.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/proc_fs.h>
#include <asm/bitops.h>
#include "av7110.h"
#define UP_TIMEOUT (HZ/4)
/* enable ir debugging by or'ing debug with 16 */
static int ir_initialized;
static struct input_dev input_dev;
static u32 ir_config;
static u16 key_map [256] = {
KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
0, 0, 0, 0, KEY_EPG, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
};
static void av7110_emit_keyup(unsigned long data)
{
if (!data || !test_bit(data, input_dev.key))
return;
input_event(&input_dev, EV_KEY, data, !!0);
}
static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
static void av7110_emit_key(u32 ircom)
{
u8 data;
u8 addr;
static u16 old_toggle = 0;
u16 new_toggle;
u16 keycode;
/* extract device address and data */
if (ir_config & 0x0001) {
/* TODO RCMM: ? bits device address, 8 bits data */
data = ircom & 0xff;
addr = (ircom >> 8) & 0xff;
} else {
/* RC5: 5 bits device address, 6 bits data */
data = ircom & 0x3f;
addr = (ircom >> 6) & 0x1f;
}
keycode = key_map[data];
dprintk(16, "#########%08x######### addr %i data 0x%02x (keycode %i)\n",
ircom, addr, data, keycode);
/* check device address (if selected) */
if (ir_config & 0x4000)
if (addr != ((ir_config >> 16) & 0xff))
return;
if (!keycode) {
printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
return;
}
if (ir_config & 0x0001)
new_toggle = 0; /* RCMM */
else
new_toggle = (ircom & 0x800); /* RC5 */
if (timer_pending(&keyup_timer)) {
del_timer(&keyup_timer);
if (keyup_timer.data != keycode || new_toggle != old_toggle) {
input_event(&input_dev, EV_KEY, keyup_timer.data, !!0);
input_event(&input_dev, EV_KEY, keycode, !0);
} else
input_event(&input_dev, EV_KEY, keycode, 2);
} else
input_event(&input_dev, EV_KEY, keycode, !0);
keyup_timer.expires = jiffies + UP_TIMEOUT;
keyup_timer.data = keycode;
add_timer(&keyup_timer);
old_toggle = new_toggle;
}
static void input_register_keys(void)
{
int i;
memset(input_dev.keybit, 0, sizeof(input_dev.keybit));
for (i = 0; i < sizeof(key_map) / sizeof(key_map[0]); i++) {
if (key_map[i] > KEY_MAX)
key_map[i] = 0;
else if (key_map[i] > KEY_RESERVED)
set_bit(key_map[i], input_dev.keybit);
}
}
static void input_repeat_key(unsigned long data)
{
/* dummy routine to disable autorepeat in the input driver */
}
static int av7110_ir_write_proc(struct file *file, const char __user *buffer,
unsigned long count, void *data)
{
char *page;
int size = 4 + 256 * sizeof(u16);
if (count < size)
return -EINVAL;
page = (char *) vmalloc(size);
if (!page)
return -ENOMEM;
if (copy_from_user(page, buffer, size)) {
vfree(page);
return -EFAULT;
}
memcpy(&ir_config, page, 4);
memcpy(&key_map, page + 4, 256 * sizeof(u16));
vfree(page);
av7110_setup_irc_config(NULL, ir_config);
input_register_keys();
return count;
}
int __init av7110_ir_init(void)
{
static struct proc_dir_entry *e;
if (ir_initialized)
return 0;
init_timer(&keyup_timer);
keyup_timer.data = 0;
input_dev.name = "DVB on-card IR receiver";
/**
* enable keys
*/
set_bit(EV_KEY, input_dev.evbit);
set_bit(EV_REP, input_dev.evbit);
input_register_keys();
input_register_device(&input_dev);
input_dev.timer.function = input_repeat_key;
av7110_setup_irc_config(NULL, 0x0001);
av7110_register_irc_handler(av7110_emit_key);
e = create_proc_entry("av7110_ir", S_IFREG | S_IRUGO | S_IWUSR, NULL);
if (e) {
e->write_proc = av7110_ir_write_proc;
e->size = 4 + 256 * sizeof(u16);
}
ir_initialized = 1;
return 0;
}
void __exit av7110_ir_exit(void)
{
if (ir_initialized == 0)
return;
del_timer_sync(&keyup_timer);
remove_proc_entry("av7110_ir", NULL);
av7110_unregister_irc_handler(av7110_emit_key);
input_unregister_device(&input_dev);
ir_initialized = 0;
}
//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
//MODULE_LICENSE("GPL");
