firedtv-rc.c
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/*
* FireDTV driver (formerly known as FireSAT)
*
* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*/
#include <linux/bitops.h>
#include <linux/input.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include "firedtv.h"
/* fixed table with older keycodes, geared towards MythTV */
static const u16 oldtable[] = {
/* code from device: 0x4501...0x451f */
KEY_ESC,
KEY_F9,
KEY_1,
KEY_2,
KEY_3,
KEY_4,
KEY_5,
KEY_6,
KEY_7,
KEY_8,
KEY_9,
KEY_I,
KEY_0,
KEY_ENTER,
KEY_RED,
KEY_UP,
KEY_GREEN,
KEY_F10,
KEY_SPACE,
KEY_F11,
KEY_YELLOW,
KEY_DOWN,
KEY_BLUE,
KEY_Z,
KEY_P,
KEY_PAGEDOWN,
KEY_LEFT,
KEY_W,
KEY_RIGHT,
KEY_P,
KEY_M,
/* code from device: 0x4540...0x4542 */
KEY_R,
KEY_V,
KEY_C,
};
/* user-modifiable table for a remote as sold in 2008 */
static const u16 keytable[] = {
/* code from device: 0x0300...0x031f */
[0x00] = KEY_POWER,
[0x01] = KEY_SLEEP,
[0x02] = KEY_STOP,
[0x03] = KEY_OK,
[0x04] = KEY_RIGHT,
[0x05] = KEY_1,
[0x06] = KEY_2,
[0x07] = KEY_3,
[0x08] = KEY_LEFT,
[0x09] = KEY_4,
[0x0a] = KEY_5,
[0x0b] = KEY_6,
[0x0c] = KEY_UP,
[0x0d] = KEY_7,
[0x0e] = KEY_8,
[0x0f] = KEY_9,
[0x10] = KEY_DOWN,
[0x11] = KEY_TITLE, /* "OSD" - fixme */
[0x12] = KEY_0,
[0x13] = KEY_F20, /* "16:9" - fixme */
[0x14] = KEY_SCREEN, /* "FULL" - fixme */
[0x15] = KEY_MUTE,
[0x16] = KEY_SUBTITLE,
[0x17] = KEY_RECORD,
[0x18] = KEY_TEXT,
[0x19] = KEY_AUDIO,
[0x1a] = KEY_RED,
[0x1b] = KEY_PREVIOUS,
[0x1c] = KEY_REWIND,
[0x1d] = KEY_PLAYPAUSE,
[0x1e] = KEY_NEXT,
[0x1f] = KEY_VOLUMEUP,
/* code from device: 0x0340...0x0354 */
[0x20] = KEY_CHANNELUP,
[0x21] = KEY_F21, /* "4:3" - fixme */
[0x22] = KEY_TV,
[0x23] = KEY_DVD,
[0x24] = KEY_VCR,
[0x25] = KEY_AUX,
[0x26] = KEY_GREEN,
[0x27] = KEY_YELLOW,
[0x28] = KEY_BLUE,
[0x29] = KEY_CHANNEL, /* "CH.LIST" */
[0x2a] = KEY_VENDOR, /* "CI" - fixme */
[0x2b] = KEY_VOLUMEDOWN,
[0x2c] = KEY_CHANNELDOWN,
[0x2d] = KEY_LAST,
[0x2e] = KEY_INFO,
[0x2f] = KEY_FORWARD,
[0x30] = KEY_LIST,
[0x31] = KEY_FAVORITES,
[0x32] = KEY_MENU,
[0x33] = KEY_EPG,
[0x34] = KEY_EXIT,
};
int fdtv_register_rc(struct firedtv *fdtv, struct device *dev)
{
struct input_dev *idev;
int i, err;
idev = input_allocate_device();
if (!idev)
return -ENOMEM;
fdtv->remote_ctrl_dev = idev;
idev->name = "FireDTV remote control";
idev->dev.parent = dev;
idev->evbit[0] = BIT_MASK(EV_KEY);
idev->keycode = kmemdup(keytable, sizeof(keytable), GFP_KERNEL);
if (!idev->keycode) {
err = -ENOMEM;
goto fail;
}
idev->keycodesize = sizeof(keytable[0]);
idev->keycodemax = ARRAY_SIZE(keytable);
for (i = 0; i < ARRAY_SIZE(keytable); i++)
set_bit(keytable[i], idev->keybit);
err = input_register_device(idev);
if (err)
goto fail_free_keymap;
return 0;
fail_free_keymap:
kfree(idev->keycode);
fail:
input_free_device(idev);
return err;
}
void fdtv_unregister_rc(struct firedtv *fdtv)
{
cancel_work_sync(&fdtv->remote_ctrl_work);
kfree(fdtv->remote_ctrl_dev->keycode);
input_unregister_device(fdtv->remote_ctrl_dev);
}
void fdtv_handle_rc(struct firedtv *fdtv, unsigned int code)
{
struct input_dev *idev = fdtv->remote_ctrl_dev;
u16 *keycode = idev->keycode;
if (code >= 0x0300 && code <= 0x031f)
code = keycode[code - 0x0300];
else if (code >= 0x0340 && code <= 0x0354)
code = keycode[code - 0x0320];
else if (code >= 0x4501 && code <= 0x451f)
code = oldtable[code - 0x4501];
else if (code >= 0x4540 && code <= 0x4542)
code = oldtable[code - 0x4521];
else {
printk(KERN_DEBUG "firedtv: invalid key code 0x%04x "
"from remote control\n", code);
return;
}
input_report_key(idev, code, 1);
input_sync(idev);
input_report_key(idev, code, 0);
input_sync(idev);
}