c8793b035d
This cleanup moves the board-specific configurations to em28xx-cards.c. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/*
|
|
handle em28xx IR remotes via linux kernel input layer.
|
|
|
|
Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
|
|
Markus Rechberger <mrechberger@gmail.com>
|
|
Mauro Carvalho Chehab <mchehab@infradead.org>
|
|
Sascha Sommer <saschasommer@freenet.de>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/input.h>
|
|
#include <linux/usb.h>
|
|
|
|
#include "em28xx.h"
|
|
|
|
static unsigned int ir_debug;
|
|
module_param(ir_debug, int, 0644);
|
|
MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
|
|
|
|
#define dprintk(fmt, arg...) if (ir_debug) \
|
|
printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
|
|
{
|
|
unsigned char b;
|
|
|
|
/* poll IR chip */
|
|
if (1 != i2c_master_recv(&ir->c,&b,1)) {
|
|
dprintk("read error\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* it seems that 0xFE indicates that a button is still hold
|
|
down, while 0xff indicates that no button is hold
|
|
down. 0xfe sequences are sometimes interrupted by 0xFF */
|
|
|
|
dprintk("key %02x\n", b);
|
|
|
|
if (b == 0xff)
|
|
return 0;
|
|
|
|
if (b == 0xfe)
|
|
/* keep old data */
|
|
return 1;
|
|
|
|
*ir_key = b;
|
|
*ir_raw = b;
|
|
return 1;
|
|
}
|
|
|
|
|
|
int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
|
|
{
|
|
unsigned char buf[2];
|
|
unsigned char code;
|
|
|
|
/* poll IR chip */
|
|
if (2 != i2c_master_recv(&ir->c,buf,2))
|
|
return -EIO;
|
|
|
|
/* Does eliminate repeated parity code */
|
|
if (buf[1]==0xff)
|
|
return 0;
|
|
|
|
ir->old=buf[1];
|
|
|
|
/* Rearranges bits to the right order */
|
|
code= ((buf[0]&0x01)<<5) | /* 0010 0000 */
|
|
((buf[0]&0x02)<<3) | /* 0001 0000 */
|
|
((buf[0]&0x04)<<1) | /* 0000 1000 */
|
|
((buf[0]&0x08)>>1) | /* 0000 0100 */
|
|
((buf[0]&0x10)>>3) | /* 0000 0010 */
|
|
((buf[0]&0x20)>>5); /* 0000 0001 */
|
|
|
|
dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n",code,buf[0]);
|
|
|
|
/* return key */
|
|
*ir_key = code;
|
|
*ir_raw = code;
|
|
return 1;
|
|
}
|
|
|
|
int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
|
|
u32 *ir_raw)
|
|
{
|
|
unsigned char buf[3];
|
|
|
|
/* poll IR chip */
|
|
|
|
if (3 != i2c_master_recv(&ir->c,buf,3)) {
|
|
dprintk("read error\n");
|
|
return -EIO;
|
|
}
|
|
|
|
dprintk("key %02x\n", buf[2]&0x3f);
|
|
if (buf[0]!=0x00){
|
|
return 0;
|
|
}
|
|
|
|
*ir_key = buf[2]&0x3f;
|
|
*ir_raw = buf[2]&0x3f;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|