194 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * FireDTV driver (formerly known as FireSAT)4 *5 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>6 */7 8#include <linux/bitops.h>9#include <linux/input.h>10#include <linux/kernel.h>11#include <linux/slab.h>12#include <linux/string.h>13#include <linux/types.h>14#include <linux/workqueue.h>15 16#include "firedtv.h"17 18/* fixed table with older keycodes, geared towards MythTV */19static const u16 oldtable[] = {20 21 /* code from device: 0x4501...0x451f */22 23 KEY_ESC,24 KEY_F9,25 KEY_1,26 KEY_2,27 KEY_3,28 KEY_4,29 KEY_5,30 KEY_6,31 KEY_7,32 KEY_8,33 KEY_9,34 KEY_I,35 KEY_0,36 KEY_ENTER,37 KEY_RED,38 KEY_UP,39 KEY_GREEN,40 KEY_F10,41 KEY_SPACE,42 KEY_F11,43 KEY_YELLOW,44 KEY_DOWN,45 KEY_BLUE,46 KEY_Z,47 KEY_P,48 KEY_PAGEDOWN,49 KEY_LEFT,50 KEY_W,51 KEY_RIGHT,52 KEY_P,53 KEY_M,54 55 /* code from device: 0x4540...0x4542 */56 57 KEY_R,58 KEY_V,59 KEY_C,60};61 62/* user-modifiable table for a remote as sold in 2008 */63static const u16 keytable[] = {64 65 /* code from device: 0x0300...0x031f */66 67 [0x00] = KEY_POWER,68 [0x01] = KEY_SLEEP,69 [0x02] = KEY_STOP,70 [0x03] = KEY_OK,71 [0x04] = KEY_RIGHT,72 [0x05] = KEY_1,73 [0x06] = KEY_2,74 [0x07] = KEY_3,75 [0x08] = KEY_LEFT,76 [0x09] = KEY_4,77 [0x0a] = KEY_5,78 [0x0b] = KEY_6,79 [0x0c] = KEY_UP,80 [0x0d] = KEY_7,81 [0x0e] = KEY_8,82 [0x0f] = KEY_9,83 [0x10] = KEY_DOWN,84 [0x11] = KEY_TITLE, /* "OSD" - fixme */85 [0x12] = KEY_0,86 [0x13] = KEY_F20, /* "16:9" - fixme */87 [0x14] = KEY_SCREEN, /* "FULL" - fixme */88 [0x15] = KEY_MUTE,89 [0x16] = KEY_SUBTITLE,90 [0x17] = KEY_RECORD,91 [0x18] = KEY_TEXT,92 [0x19] = KEY_AUDIO,93 [0x1a] = KEY_RED,94 [0x1b] = KEY_PREVIOUS,95 [0x1c] = KEY_REWIND,96 [0x1d] = KEY_PLAYPAUSE,97 [0x1e] = KEY_NEXT,98 [0x1f] = KEY_VOLUMEUP,99 100 /* code from device: 0x0340...0x0354 */101 102 [0x20] = KEY_CHANNELUP,103 [0x21] = KEY_F21, /* "4:3" - fixme */104 [0x22] = KEY_TV,105 [0x23] = KEY_DVD,106 [0x24] = KEY_VCR,107 [0x25] = KEY_AUX,108 [0x26] = KEY_GREEN,109 [0x27] = KEY_YELLOW,110 [0x28] = KEY_BLUE,111 [0x29] = KEY_CHANNEL, /* "CH.LIST" */112 [0x2a] = KEY_VENDOR, /* "CI" - fixme */113 [0x2b] = KEY_VOLUMEDOWN,114 [0x2c] = KEY_CHANNELDOWN,115 [0x2d] = KEY_LAST,116 [0x2e] = KEY_INFO,117 [0x2f] = KEY_FORWARD,118 [0x30] = KEY_LIST,119 [0x31] = KEY_FAVORITES,120 [0x32] = KEY_MENU,121 [0x33] = KEY_EPG,122 [0x34] = KEY_EXIT,123};124 125int fdtv_register_rc(struct firedtv *fdtv, struct device *dev)126{127 struct input_dev *idev;128 int i, err;129 130 idev = input_allocate_device();131 if (!idev)132 return -ENOMEM;133 134 fdtv->remote_ctrl_dev = idev;135 idev->name = "FireDTV remote control";136 idev->dev.parent = dev;137 idev->evbit[0] = BIT_MASK(EV_KEY);138 idev->keycode = kmemdup(keytable, sizeof(keytable), GFP_KERNEL);139 if (!idev->keycode) {140 err = -ENOMEM;141 goto fail;142 }143 idev->keycodesize = sizeof(keytable[0]);144 idev->keycodemax = ARRAY_SIZE(keytable);145 146 for (i = 0; i < ARRAY_SIZE(keytable); i++)147 set_bit(keytable[i], idev->keybit);148 149 err = input_register_device(idev);150 if (err)151 goto fail_free_keymap;152 153 return 0;154 155fail_free_keymap:156 kfree(idev->keycode);157fail:158 input_free_device(idev);159 return err;160}161 162void fdtv_unregister_rc(struct firedtv *fdtv)163{164 cancel_work_sync(&fdtv->remote_ctrl_work);165 kfree(fdtv->remote_ctrl_dev->keycode);166 input_unregister_device(fdtv->remote_ctrl_dev);167}168 169void fdtv_handle_rc(struct firedtv *fdtv, unsigned int code)170{171 struct input_dev *idev = fdtv->remote_ctrl_dev;172 u16 *keycode = idev->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 dev_dbg(fdtv->device,184 "invalid key code 0x%04x from remote control\n",185 code);186 return;187 }188 189 input_report_key(idev, code, 1);190 input_sync(idev);191 input_report_key(idev, code, 0);192 input_sync(idev);193}194