145 lines
3.6 KiB
C
145 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/* DVB USB compliant Linux driver for the Afatech 9005
|
|
* USB1.1 DVB-T receiver.
|
|
*
|
|
* Standard remote decode function
|
|
*
|
|
* Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
|
|
*
|
|
* Thanks to Afatech who kindly provided information.
|
|
*
|
|
* see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
|
|
*/
|
|
#include "af9005.h"
|
|
/* debug */
|
|
static int dvb_usb_af9005_remote_debug;
|
|
module_param_named(debug, dvb_usb_af9005_remote_debug, int, 0644);
|
|
MODULE_PARM_DESC(debug,
|
|
"enable (1) or disable (0) debug messages."
|
|
DVB_USB_DEBUG_STATUS);
|
|
|
|
#define deb_decode(args...) dprintk(dvb_usb_af9005_remote_debug,0x01,args)
|
|
|
|
struct rc_map_table rc_map_af9005_table[] = {
|
|
|
|
{0x01b7, KEY_POWER},
|
|
{0x01a7, KEY_VOLUMEUP},
|
|
{0x0187, KEY_CHANNELUP},
|
|
{0x017f, KEY_MUTE},
|
|
{0x01bf, KEY_VOLUMEDOWN},
|
|
{0x013f, KEY_CHANNELDOWN},
|
|
{0x01df, KEY_1},
|
|
{0x015f, KEY_2},
|
|
{0x019f, KEY_3},
|
|
{0x011f, KEY_4},
|
|
{0x01ef, KEY_5},
|
|
{0x016f, KEY_6},
|
|
{0x01af, KEY_7},
|
|
{0x0127, KEY_8},
|
|
{0x0107, KEY_9},
|
|
{0x01cf, KEY_ZOOM},
|
|
{0x014f, KEY_0},
|
|
{0x018f, KEY_GOTO}, /* marked jump on the remote */
|
|
|
|
{0x00bd, KEY_POWER},
|
|
{0x007d, KEY_VOLUMEUP},
|
|
{0x00fd, KEY_CHANNELUP},
|
|
{0x009d, KEY_MUTE},
|
|
{0x005d, KEY_VOLUMEDOWN},
|
|
{0x00dd, KEY_CHANNELDOWN},
|
|
{0x00ad, KEY_1},
|
|
{0x006d, KEY_2},
|
|
{0x00ed, KEY_3},
|
|
{0x008d, KEY_4},
|
|
{0x004d, KEY_5},
|
|
{0x00cd, KEY_6},
|
|
{0x00b5, KEY_7},
|
|
{0x0075, KEY_8},
|
|
{0x00f5, KEY_9},
|
|
{0x0095, KEY_ZOOM},
|
|
{0x0055, KEY_0},
|
|
{0x00d5, KEY_GOTO}, /* marked jump on the remote */
|
|
};
|
|
|
|
int rc_map_af9005_table_size = ARRAY_SIZE(rc_map_af9005_table);
|
|
|
|
static int repeatable_keys[] = {
|
|
KEY_VOLUMEUP,
|
|
KEY_VOLUMEDOWN,
|
|
KEY_CHANNELUP,
|
|
KEY_CHANNELDOWN
|
|
};
|
|
|
|
int af9005_rc_decode(struct dvb_usb_device *d, u8 * data, int len, u32 * event,
|
|
int *state)
|
|
{
|
|
u16 mark, space;
|
|
u32 result;
|
|
u8 cust, dat, invdat;
|
|
int i;
|
|
|
|
if (len >= 6) {
|
|
mark = (u16) (data[0] << 8) + data[1];
|
|
space = (u16) (data[2] << 8) + data[3];
|
|
if (space * 3 < mark) {
|
|
for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
|
|
if (d->last_event == repeatable_keys[i]) {
|
|
*state = REMOTE_KEY_REPEAT;
|
|
*event = d->last_event;
|
|
deb_decode("repeat key, event %x\n",
|
|
*event);
|
|
return 0;
|
|
}
|
|
}
|
|
deb_decode("repeated key ignored (non repeatable)\n");
|
|
return 0;
|
|
} else if (len >= 33 * 4) { /*32 bits + start code */
|
|
result = 0;
|
|
for (i = 4; i < 4 + 32 * 4; i += 4) {
|
|
result <<= 1;
|
|
mark = (u16) (data[i] << 8) + data[i + 1];
|
|
mark >>= 1;
|
|
space = (u16) (data[i + 2] << 8) + data[i + 3];
|
|
space >>= 1;
|
|
if (mark * 2 > space)
|
|
result += 1;
|
|
}
|
|
deb_decode("key pressed, raw value %x\n", result);
|
|
if ((result & 0xff000000) != 0xfe000000) {
|
|
deb_decode
|
|
("doesn't start with 0xfe, ignored\n");
|
|
return 0;
|
|
}
|
|
cust = (result >> 16) & 0xff;
|
|
dat = (result >> 8) & 0xff;
|
|
invdat = (~result) & 0xff;
|
|
if (dat != invdat) {
|
|
deb_decode("code != inverted code\n");
|
|
return 0;
|
|
}
|
|
for (i = 0; i < rc_map_af9005_table_size; i++) {
|
|
if (rc5_custom(&rc_map_af9005_table[i]) == cust
|
|
&& rc5_data(&rc_map_af9005_table[i]) == dat) {
|
|
*event = rc_map_af9005_table[i].keycode;
|
|
*state = REMOTE_KEY_PRESSED;
|
|
deb_decode
|
|
("key pressed, event %x\n", *event);
|
|
return 0;
|
|
}
|
|
}
|
|
deb_decode("not found in table\n");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(rc_map_af9005_table);
|
|
EXPORT_SYMBOL(rc_map_af9005_table_size);
|
|
EXPORT_SYMBOL(af9005_rc_decode);
|
|
|
|
MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
|
|
MODULE_DESCRIPTION
|
|
("Standard remote control decoder for Afatech 9005 DVB-T USB1.1 stick");
|
|
MODULE_VERSION("1.0");
|
|
MODULE_LICENSE("GPL");
|