6555f4322f
Removed the code that avoids repeating events when pressing IR keys. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
182 lines
4.7 KiB
C
182 lines
4.7 KiB
C
/*
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handle em28xx IR remotes via linux kernel input layer.
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Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
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Markus Rechberger <mrechberger@gmail.com>
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Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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Sascha Sommer <saschasommer@freenet.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include <linux/usb.h>
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#include "em28xx.h"
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static unsigned int disable_ir = 0;
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module_param(disable_ir, int, 0444);
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MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
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static unsigned int ir_debug = 0;
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module_param(ir_debug, int, 0644);
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MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
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#define dprintk(fmt, arg...) if (ir_debug) \
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printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
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/* ---------------------------------------------------------------------- */
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static IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE] = {
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[ 0x01 ] = KEY_CHANNEL,
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[ 0x02 ] = KEY_SELECT,
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[ 0x03 ] = KEY_MUTE,
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[ 0x04 ] = KEY_POWER,
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[ 0x05 ] = KEY_KP1,
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[ 0x06 ] = KEY_KP2,
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[ 0x07 ] = KEY_KP3,
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[ 0x08 ] = KEY_CHANNELUP,
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[ 0x09 ] = KEY_KP4,
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[ 0x0a ] = KEY_KP5,
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[ 0x0b ] = KEY_KP6,
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[ 0x0c ] = KEY_CHANNELDOWN,
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[ 0x0d ] = KEY_KP7,
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[ 0x0e ] = KEY_KP8,
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[ 0x0f ] = KEY_KP9,
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[ 0x10 ] = KEY_VOLUMEUP,
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[ 0x11 ] = KEY_KP0,
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[ 0x12 ] = KEY_MENU,
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[ 0x13 ] = KEY_PRINT,
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[ 0x14 ] = KEY_VOLUMEDOWN,
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[ 0x16 ] = KEY_PAUSE,
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[ 0x18 ] = KEY_RECORD,
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[ 0x19 ] = KEY_REWIND,
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[ 0x1a ] = KEY_PLAY,
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[ 0x1b ] = KEY_FORWARD,
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[ 0x1c ] = KEY_BACKSPACE,
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[ 0x1e ] = KEY_STOP,
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[ 0x40 ] = KEY_ZOOM,
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};
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/* ----------------------------------------------------------------------- */
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static int get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
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{
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unsigned char b;
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/* poll IR chip */
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if (1 != i2c_master_recv(&ir->c,&b,1)) {
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dprintk("read error\n");
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return -EIO;
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}
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/* it seems that 0xFE indicates that a button is still hold
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down, while 0xff indicates that no button is hold
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down. 0xfe sequences are sometimes interrupted by 0xFF */
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dprintk("key %02x\n", b);
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if (b == 0xff)
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return 0;
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if (b == 0xfe)
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/* keep old data */
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return 1;
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*ir_key = b;
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*ir_raw = b;
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return 1;
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}
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static int get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
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{
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unsigned char buf[2];
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unsigned char code;
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/* poll IR chip */
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if (2 != i2c_master_recv(&ir->c,buf,2))
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return -EIO;
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/* Does eliminate repeated parity code */
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if (buf[1]==0xff)
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return 0;
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ir->old=buf[1];
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/* Rearranges bits to the right order */
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code= ((buf[0]&0x01)<<5) | /* 0010 0000 */
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((buf[0]&0x02)<<3) | /* 0001 0000 */
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((buf[0]&0x04)<<1) | /* 0000 1000 */
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((buf[0]&0x08)>>1) | /* 0000 0100 */
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((buf[0]&0x10)>>3) | /* 0000 0010 */
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((buf[0]&0x20)>>5); /* 0000 0001 */
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dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n",code,buf[0]);
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/* return key */
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*ir_key = code;
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*ir_raw = code;
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return 1;
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}
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/* ----------------------------------------------------------------------- */
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void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir)
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{
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if (disable_ir) {
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ir->get_key=NULL;
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return ;
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}
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/* detect & configure */
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switch (dev->model) {
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case (EM2800_BOARD_UNKNOWN):
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break;
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case (EM2820_BOARD_UNKNOWN):
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break;
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case (EM2800_BOARD_TERRATEC_CINERGY_200):
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case (EM2820_BOARD_TERRATEC_CINERGY_250):
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ir->ir_codes = ir_codes_em_terratec;
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ir->get_key = get_key_terratec;
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snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Terratec)");
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break;
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case (EM2820_BOARD_PINNACLE_USB_2):
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break;
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case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2):
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ir->ir_codes = ir_codes_hauppauge_new;
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ir->get_key = get_key_em_haup;
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snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM2840 Hauppauge)");
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break;
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case (EM2820_BOARD_MSI_VOX_USB_2):
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break;
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case (EM2800_BOARD_LEADTEK_WINFAST_USBII):
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break;
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case (EM2800_BOARD_KWORLD_USB2800):
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break;
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}
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}
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/* ----------------------------------------------------------------------
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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