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(p: keytable, size: 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(nr: keytable[i], addr: 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(objp: idev->keycode); |
157 | fail: |
158 | input_free_device(dev: idev); |
159 | return err; |
160 | } |
161 | |
162 | void fdtv_unregister_rc(struct firedtv *fdtv) |
163 | { |
164 | cancel_work_sync(work: &fdtv->remote_ctrl_work); |
165 | kfree(objp: 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(dev: idev, code, value: 1); |
190 | input_sync(dev: idev); |
191 | input_report_key(dev: idev, code, value: 0); |
192 | input_sync(dev: idev); |
193 | } |
194 | |