LXR linux/drivers/media/dvb/firewire/firedtv-rc.c

   1/*
   2 * FireDTV driver (formerly known as FireSAT)
   3 *
   4 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
   5 *
   6 *      This program is free software; you can redistribute it and/or
   7 *      modify it under the terms of the GNU General Public License as
   8 *      published by the Free Software Foundation; either version 2 of
   9 *      the License, or (at your option) any later version.
  10 */
  11
  12#include <linux/bitops.h>
  13#include <linux/input.h>
  14#include <linux/kernel.h>
  15#include <linux/string.h>
  16#include <linux/types.h>
  17
  18#include "firedtv.h"
  19
  20/* fixed table with older keycodes, geared towards MythTV */
  21static const u16 oldtable[] = {
  22
  23        /* code from device: 0x4501...0x451f */
  24
  25        KEY_ESC,
  26        KEY_F9,
  27        KEY_1,
  28        KEY_2,
  29        KEY_3,
  30        KEY_4,
  31        KEY_5,
  32        KEY_6,
  33        KEY_7,
  34        KEY_8,
  35        KEY_9,
  36        KEY_I,
  37        KEY_0,
  38        KEY_ENTER,
  39        KEY_RED,
  40        KEY_UP,
  41        KEY_GREEN,
  42        KEY_F10,
  43        KEY_SPACE,
  44        KEY_F11,
  45        KEY_YELLOW,
  46        KEY_DOWN,
  47        KEY_BLUE,
  48        KEY_Z,
  49        KEY_P,
  50        KEY_PAGEDOWN,
  51        KEY_LEFT,
  52        KEY_W,
  53        KEY_RIGHT,
  54        KEY_P,
  55        KEY_M,
  56
  57        /* code from device: 0x4540...0x4542 */
  58
  59        KEY_R,
  60        KEY_V,
  61        KEY_C,
  62};
  63
  64/* user-modifiable table for a remote as sold in 2008 */
  65static const u16 keytable[] = {
  66
  67        /* code from device: 0x0300...0x031f */
  68
  69        [0x00] = KEY_POWER,
  70        [0x01] = KEY_SLEEP,
  71        [0x02] = KEY_STOP,
  72        [0x03] = KEY_OK,
  73        [0x04] = KEY_RIGHT,
  74        [0x05] = KEY_1,
  75        [0x06] = KEY_2,
  76        [0x07] = KEY_3,
  77        [0x08] = KEY_LEFT,
  78        [0x09] = KEY_4,
  79        [0x0a] = KEY_5,
  80        [0x0b] = KEY_6,
  81        [0x0c] = KEY_UP,
  82        [0x0d] = KEY_7,
  83        [0x0e] = KEY_8,
  84        [0x0f] = KEY_9,
  85        [0x10] = KEY_DOWN,
  86        [0x11] = KEY_TITLE,     /* "OSD" - fixme */
  87        [0x12] = KEY_0,
  88        [0x13] = KEY_F20,       /* "16:9" - fixme */
  89        [0x14] = KEY_SCREEN,    /* "FULL" - fixme */
  90        [0x15] = KEY_MUTE,
  91        [0x16] = KEY_SUBTITLE,
  92        [0x17] = KEY_RECORD,
  93        [0x18] = KEY_TEXT,
  94        [0x19] = KEY_AUDIO,
  95        [0x1a] = KEY_RED,
  96        [0x1b] = KEY_PREVIOUS,
  97        [0x1c] = KEY_REWIND,
  98        [0x1d] = KEY_PLAYPAUSE,
  99        [0x1e] = KEY_NEXT,
 100        [0x1f] = KEY_VOLUMEUP,
 101
 102        /* code from device: 0x0340...0x0354 */
 103
 104        [0x20] = KEY_CHANNELUP,
 105        [0x21] = KEY_F21,       /* "4:3" - fixme */
 106        [0x22] = KEY_TV,
 107        [0x23] = KEY_DVD,
 108        [0x24] = KEY_VCR,
 109        [0x25] = KEY_AUX,
 110        [0x26] = KEY_GREEN,
 111        [0x27] = KEY_YELLOW,
 112        [0x28] = KEY_BLUE,
 113        [0x29] = KEY_CHANNEL,   /* "CH.LIST" */
 114        [0x2a] = KEY_VENDOR,    /* "CI" - fixme */
 115        [0x2b] = KEY_VOLUMEDOWN,
 116        [0x2c] = KEY_CHANNELDOWN,
 117        [0x2d] = KEY_LAST,
 118        [0x2e] = KEY_INFO,
 119        [0x2f] = KEY_FORWARD,
 120        [0x30] = KEY_LIST,
 121        [0x31] = KEY_FAVORITES,
 122        [0x32] = KEY_MENU,
 123        [0x33] = KEY_EPG,
 124        [0x34] = KEY_EXIT,
 125};
 126
 127int fdtv_register_rc(struct firedtv *fdtv, struct device *dev)
 128{
 129        struct input_dev *idev;
 130        int i, err;
 131
 132        idev = input_allocate_device();
 133        if (!idev)
 134                return -ENOMEM;
 135
 136        fdtv->remote_ctrl_dev = idev;
 137        idev->name = "FireDTV remote control";
 138        idev->dev.parent = dev;
 139        idev->evbit[0] = BIT_MASK(EV_KEY);
 140        idev->keycode = kmemdup(keytable, sizeof(keytable), GFP_KERNEL);
 141        if (!idev->keycode) {
 142                err = -ENOMEM;
 143                goto fail;
 144        }
 145        idev->keycodesize = sizeof(keytable[0]);
 146        idev->keycodemax = ARRAY_SIZE(keytable);
 147
 148        for (i = 0; i < ARRAY_SIZE(keytable); i++)
 149                set_bit(keytable[i], idev->keybit);
 150
 151        err = input_register_device(idev);
 152        if (err)
 153                goto fail_free_keymap;
 154
 155        return 0;
 156
 157fail_free_keymap:
 158        kfree(idev->keycode);
 159fail:
 160        input_free_device(idev);
 161        return err;
 162}
 163
 164void fdtv_unregister_rc(struct firedtv *fdtv)
 165{
 166        kfree(fdtv->remote_ctrl_dev->keycode);
 167        input_unregister_device(fdtv->remote_ctrl_dev);
 168}
 169
 170void fdtv_handle_rc(struct firedtv *fdtv, unsigned int code)
 171{
 172        u16 *keycode = fdtv->remote_ctrl_dev->keycode;
 173
 174        if (code >= 0x0300 && code <= 0x031f)
 175                code = keycode[code - 0x0300];
 176        else if (code >= 0x0340 && code <= 0x0354)
 177                code = keycode[code - 0x0320];
 178        else if (code >= 0x4501 && code <= 0x451f)
 179                code = oldtable[code - 0x4501];
 180        else if (code >= 0x4540 && code <= 0x4542)
 181                code = oldtable[code - 0x4521];
 182        else {
 183                printk(KERN_DEBUG "firedtv: invalid key code 0x%04x "
 184                       "from remote control\n", code);
 185                return;
 186        }
 187
 188        input_report_key(fdtv->remote_ctrl_dev, code, 1);
 189        input_report_key(fdtv->remote_ctrl_dev, code, 0);
 190}
 191