1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 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 */ 19 static 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 */ 63 static 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 }; 124 125 int 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; 154 155 fail_free_keymap: 156 kfree(idev->keycode); 157 fail: 158 input_free_device(idev); 159 return err; 160 } 161 162 void 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 } 168 169 void 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