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#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"
#include "av7110_hw.h"
#define UP_TIMEOUT (HZ*7/25)
/* enable ir debugging by or'ing debug with 16 */
static int av_cnt;
static struct av7110 *av_list[4];
static struct input_dev *input_dev;
static u8 delay_timer_finished;
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_report_key(input_dev, data, 0);
input_sync(input_dev);
}
static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
static void av7110_emit_key(unsigned long parm)
{
struct av7110 *av7110 = (struct av7110 *) parm;
u32 ir_config = av7110->ir_config;
u32 ircom = av7110->ir_command;
u8 data;
u8 addr;
static u16 old_toggle = 0;
u16 new_toggle;
u16 keycode;
/* extract device address and data */
switch (ir_config & 0x0003) {
case 0: /* RC5: 5 bits device address, 6 bits data */
data = ircom & 0x3f;
addr = (ircom >> 6) & 0x1f;
break;
case 1: /* RCMM: 8(?) bits device address, 8(?) bits data */
data = ircom & 0xff;
addr = (ircom >> 8) & 0xff;
break;
case 2: /* extended RC5: 5 bits device address, 7 bits data */
data = ircom & 0x3f;
addr = (ircom >> 6) & 0x1f;
/* invert 7th data bit for backward compatibility with RC5 keymaps */
if (!(ircom & 0x1000))
data |= 0x40;
break;
default:
printk("invalid ir_config %x\n", ir_config);
return;
}
keycode = key_map[data];
dprintk(16, "code %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 & 0x0003) == 1)
new_toggle = 0; /* RCMM */
else
new_toggle = (ircom & 0x800); /* RC5, extended RC5 */
if (timer_pending(&keyup_timer)) {
del_timer(&keyup_timer);
if (keyup_timer.data != keycode || new_toggle != old_toggle) {
delay_timer_finished = 0;
input_event(input_dev, EV_KEY, keyup_timer.data, 0);
input_event(input_dev, EV_KEY, keycode, 1);
input_sync(input_dev);
} else if (delay_timer_finished) {
input_event(input_dev, EV_KEY, keycode, 2);
input_sync(input_dev);
}
} else {
delay_timer_finished = 0;
input_event(input_dev, EV_KEY, keycode, 1);
input_sync(input_dev);
}
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 < ARRAY_SIZE(key_map); 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)
{
/* called by the input driver after rep[REP_DELAY] ms */
delay_timer_finished = 1;
}
static int av7110_setup_irc_config(struct av7110 *av7110, u32 ir_config)
{
int ret = 0;
dprintk(4, "%p\n", av7110);
if (av7110) {
ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, ir_config);
av7110->ir_config = ir_config;
}
return ret;
}
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);
u32 ir_config;
int i;
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);
if (FW_VERSION(av_list[0]->arm_app) >= 0x2620 && !(ir_config & 0x0001))
ir_config |= 0x0002; /* enable extended RC5 */
for (i = 0; i < av_cnt; i++)
av7110_setup_irc_config(av_list[i], ir_config);
input_register_keys();
return count;
}
static void ir_handler(struct av7110 *av7110, u32 ircom)
{
dprintk(4, "ircommand = %08x\n", ircom);
av7110->ir_command = ircom;
tasklet_schedule(&av7110->ir_tasklet);
}
int __devinit av7110_ir_init(struct av7110 *av7110)
{
static struct proc_dir_entry *e;
int err;
if (av_cnt >= sizeof av_list/sizeof av_list[0])
return -ENOSPC;
av7110_setup_irc_config(av7110, 0x0001);
av_list[av_cnt++] = av7110;
if (av_cnt == 1) {
init_timer(&keyup_timer);
keyup_timer.data = 0;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_dev->name = "DVB on-card IR receiver";
set_bit(EV_KEY, input_dev->evbit);
set_bit(EV_REP, input_dev->evbit);
input_register_keys();
err = input_register_device(input_dev);
if (err) {
input_free_device(input_dev);
return err;
}
input_dev->timer.function = input_repeat_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);
}
}
tasklet_init(&av7110->ir_tasklet, av7110_emit_key, (unsigned long) av7110);
av7110->ir_handler = ir_handler;
return 0;
}
void __devexit av7110_ir_exit(struct av7110 *av7110)
{
int i;
if (av_cnt == 0)
return;
av7110->ir_handler = NULL;
tasklet_kill(&av7110->ir_tasklet);
for (i = 0; i < av_cnt; i++)
if (av_list[i] == av7110) {
av_list[i] = av_list[av_cnt-1];
av_list[av_cnt-1] = NULL;
break;
}
if (av_cnt == 1) {
del_timer_sync(&keyup_timer);
remove_proc_entry("av7110_ir", NULL);
input_unregister_device(input_dev);
}
av_cnt--;
}
//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
//MODULE_LICENSE("GPL");
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