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/slab.h>
16 #include <linux/string.h>
17 #include <linux/types.h>
18 #include <linux/workqueue.h>
19
20 #include "firedtv.h"
21
22 /* fixed table with older keycodes, geared towards MythTV */
23 static const u16 oldtable[] = {
24
25 /* code from device: 0x4501...0x451f */
26
27 KEY_ESC,
28 KEY_F9,
29 KEY_1,
30 KEY_2,
31 KEY_3,
32 KEY_4,
33 KEY_5,
34 KEY_6,
35 KEY_7,
36 KEY_8,
37 KEY_9,
38 KEY_I,
39 KEY_0,
40 KEY_ENTER,
41 KEY_RED,
42 KEY_UP,
43 KEY_GREEN,
44 KEY_F10,
45 KEY_SPACE,
46 KEY_F11,
47 KEY_YELLOW,
48 KEY_DOWN,
49 KEY_BLUE,
50 KEY_Z,
51 KEY_P,
52 KEY_PAGEDOWN,
53 KEY_LEFT,
54 KEY_W,
55 KEY_RIGHT,
56 KEY_P,
57 KEY_M,
58
59 /* code from device: 0x4540...0x4542 */
60
61 KEY_R,
62 KEY_V,
63 KEY_C,
64 };
65
66 /* user-modifiable table for a remote as sold in 2008 */
67 static const u16 keytable[] = {
68
69 /* code from device: 0x0300...0x031f */
70
71 [0x00] = KEY_POWER,
72 [0x01] = KEY_SLEEP,
73 [0x02] = KEY_STOP,
74 [0x03] = KEY_OK,
75 [0x04] = KEY_RIGHT,
76 [0x05] = KEY_1,
77 [0x06] = KEY_2,
78 [0x07] = KEY_3,
79 [0x08] = KEY_LEFT,
80 [0x09] = KEY_4,
81 [0x0a] = KEY_5,
82 [0x0b] = KEY_6,
83 [0x0c] = KEY_UP,
84 [0x0d] = KEY_7,
85 [0x0e] = KEY_8,
86 [0x0f] = KEY_9,
87 [0x10] = KEY_DOWN,
88 [0x11] = KEY_TITLE, /* "OSD" - fixme */
89 [0x12] = KEY_0,
90 [0x13] = KEY_F20, /* "16:9" - fixme */
91 [0x14] = KEY_SCREEN, /* "FULL" - fixme */
92 [0x15] = KEY_MUTE,
93 [0x16] = KEY_SUBTITLE,
94 [0x17] = KEY_RECORD,
95 [0x18] = KEY_TEXT,
96 [0x19] = KEY_AUDIO,
97 [0x1a] = KEY_RED,
98 [0x1b] = KEY_PREVIOUS,
99 [0x1c] = KEY_REWIND,
100 [0x1d] = KEY_PLAYPAUSE,
101 [0x1e] = KEY_NEXT,
102 [0x1f] = KEY_VOLUMEUP,
103
104 /* code from device: 0x0340...0x0354 */
105
106 [0x20] = KEY_CHANNELUP,
107 [0x21] = KEY_F21, /* "4:3" - fixme */
108 [0x22] = KEY_TV,
109 [0x23] = KEY_DVD,
110 [0x24] = KEY_VCR,
111 [0x25] = KEY_AUX,
112 [0x26] = KEY_GREEN,
113 [0x27] = KEY_YELLOW,
114 [0x28] = KEY_BLUE,
115 [0x29] = KEY_CHANNEL, /* "CH.LIST" */
116 [0x2a] = KEY_VENDOR, /* "CI" - fixme */
117 [0x2b] = KEY_VOLUMEDOWN,
118 [0x2c] = KEY_CHANNELDOWN,
119 [0x2d] = KEY_LAST,
120 [0x2e] = KEY_INFO,
121 [0x2f] = KEY_FORWARD,
122 [0x30] = KEY_LIST,
123 [0x31] = KEY_FAVORITES,
124 [0x32] = KEY_MENU,
125 [0x33] = KEY_EPG,
126 [0x34] = KEY_EXIT,
127 };
128
fdtv_register_rc(struct firedtv * fdtv,struct device * dev)129 int fdtv_register_rc(struct firedtv *fdtv, struct device *dev)
130 {
131 struct input_dev *idev;
132 int i, err;
133
134 idev = input_allocate_device();
135 if (!idev)
136 return -ENOMEM;
137
138 fdtv->remote_ctrl_dev = idev;
139 idev->name = "FireDTV remote control";
140 idev->dev.parent = dev;
141 idev->evbit[0] = BIT_MASK(EV_KEY);
142 idev->keycode = kmemdup(keytable, sizeof(keytable), GFP_KERNEL);
143 if (!idev->keycode) {
144 err = -ENOMEM;
145 goto fail;
146 }
147 idev->keycodesize = sizeof(keytable[0]);
148 idev->keycodemax = ARRAY_SIZE(keytable);
149
150 for (i = 0; i < ARRAY_SIZE(keytable); i++)
151 set_bit(keytable[i], idev->keybit);
152
153 err = input_register_device(idev);
154 if (err)
155 goto fail_free_keymap;
156
157 return 0;
158
159 fail_free_keymap:
160 kfree(idev->keycode);
161 fail:
162 input_free_device(idev);
163 return err;
164 }
165
fdtv_unregister_rc(struct firedtv * fdtv)166 void fdtv_unregister_rc(struct firedtv *fdtv)
167 {
168 cancel_work_sync(&fdtv->remote_ctrl_work);
169 kfree(fdtv->remote_ctrl_dev->keycode);
170 input_unregister_device(fdtv->remote_ctrl_dev);
171 }
172
fdtv_handle_rc(struct firedtv * fdtv,unsigned int code)173 void fdtv_handle_rc(struct firedtv *fdtv, unsigned int code)
174 {
175 struct input_dev *idev = fdtv->remote_ctrl_dev;
176 u16 *keycode = idev->keycode;
177
178 if (code >= 0x0300 && code <= 0x031f)
179 code = keycode[code - 0x0300];
180 else if (code >= 0x0340 && code <= 0x0354)
181 code = keycode[code - 0x0320];
182 else if (code >= 0x4501 && code <= 0x451f)
183 code = oldtable[code - 0x4501];
184 else if (code >= 0x4540 && code <= 0x4542)
185 code = oldtable[code - 0x4521];
186 else {
187 printk(KERN_DEBUG "firedtv: invalid key code 0x%04x "
188 "from remote control\n", code);
189 return;
190 }
191
192 input_report_key(idev, code, 1);
193 input_sync(idev);
194 input_report_key(idev, code, 0);
195 input_sync(idev);
196 }
197