1 /* DVB USB compliant Linux driver for the Afatech 9005
2 * USB1.1 DVB-T receiver.
4 * Standard remote decode function
6 * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
8 * Thanks to Afatech who kindly provided information.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * see Documentation/dvb/REDME.dvb-usb for more information
28 static int dvb_usb_af9005_remote_debug
;
29 module_param_named(debug
, dvb_usb_af9005_remote_debug
, int, 0644);
30 MODULE_PARM_DESC(debug
,
31 "enable (1) or disable (0) debug messages."
32 DVB_USB_DEBUG_STATUS
);
34 #define deb_decode(args...) dprintk(dvb_usb_af9005_remote_debug,0x01,args)
36 struct rc_map_table rc_map_af9005_table
[] = {
39 {0x01a7, KEY_VOLUMEUP
},
40 {0x0187, KEY_CHANNELUP
},
42 {0x01bf, KEY_VOLUMEDOWN
},
43 {0x013f, KEY_CHANNELDOWN
},
55 {0x018f, KEY_GOTO
}, /* marked jump on the remote */
58 {0x007d, KEY_VOLUMEUP
},
59 {0x00fd, KEY_CHANNELUP
},
61 {0x005d, KEY_VOLUMEDOWN
},
62 {0x00dd, KEY_CHANNELDOWN
},
74 {0x00d5, KEY_GOTO
}, /* marked jump on the remote */
77 int rc_map_af9005_table_size
= ARRAY_SIZE(rc_map_af9005_table
);
79 static int repeatable_keys
[] = {
86 int af9005_rc_decode(struct dvb_usb_device
*d
, u8
* data
, int len
, u32
* event
,
95 mark
= (u16
) (data
[0] << 8) + data
[1];
96 space
= (u16
) (data
[2] << 8) + data
[3];
97 if (space
* 3 < mark
) {
98 for (i
= 0; i
< ARRAY_SIZE(repeatable_keys
); i
++) {
99 if (d
->last_event
== repeatable_keys
[i
]) {
100 *state
= REMOTE_KEY_REPEAT
;
101 *event
= d
->last_event
;
102 deb_decode("repeat key, event %x\n",
107 deb_decode("repeated key ignored (non repeatable)\n");
109 } else if (len
>= 33 * 4) { /*32 bits + start code */
111 for (i
= 4; i
< 4 + 32 * 4; i
+= 4) {
113 mark
= (u16
) (data
[i
] << 8) + data
[i
+ 1];
115 space
= (u16
) (data
[i
+ 2] << 8) + data
[i
+ 3];
117 if (mark
* 2 > space
)
120 deb_decode("key pressed, raw value %x\n", result
);
121 if ((result
& 0xff000000) != 0xfe000000) {
123 ("doesn't start with 0xfe, ignored\n");
126 cust
= (result
>> 16) & 0xff;
127 dat
= (result
>> 8) & 0xff;
128 invdat
= (~result
) & 0xff;
130 deb_decode("code != inverted code\n");
133 for (i
= 0; i
< rc_map_af9005_table_size
; i
++) {
134 if (rc5_custom(&rc_map_af9005_table
[i
]) == cust
135 && rc5_data(&rc_map_af9005_table
[i
]) == dat
) {
136 *event
= rc_map_af9005_table
[i
].keycode
;
137 *state
= REMOTE_KEY_PRESSED
;
139 ("key pressed, event %x\n", *event
);
143 deb_decode("not found in table\n");
149 EXPORT_SYMBOL(rc_map_af9005_table
);
150 EXPORT_SYMBOL(rc_map_af9005_table_size
);
151 EXPORT_SYMBOL(af9005_rc_decode
);
153 MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
155 ("Standard remote control decoder for Afatech 9005 DVB-T USB1.1 stick");
156 MODULE_VERSION("1.0");
157 MODULE_LICENSE("GPL");