/* handle em28xx IR remotes via linux kernel input layer. Copyright (C) 2005 Ludovico Cavedon Markus Rechberger Mauro Carvalho Chehab Sascha Sommer 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 #include #include #include #include #include #include #include #include "em28xx.h" static unsigned int disable_ir = 0; module_param(disable_ir, int, 0444); MODULE_PARM_DESC(disable_ir,"disable infrared remote support"); static unsigned int ir_debug = 0; 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) /* ---------------------------------------------------------------------- */ static IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE] = { [ 0x01 ] = KEY_CHANNEL, [ 0x02 ] = KEY_SELECT, [ 0x03 ] = KEY_MUTE, [ 0x04 ] = KEY_POWER, [ 0x05 ] = KEY_KP1, [ 0x06 ] = KEY_KP2, [ 0x07 ] = KEY_KP3, [ 0x08 ] = KEY_CHANNELUP, [ 0x09 ] = KEY_KP4, [ 0x0a ] = KEY_KP5, [ 0x0b ] = KEY_KP6, [ 0x0c ] = KEY_CHANNELDOWN, [ 0x0d ] = KEY_KP7, [ 0x0e ] = KEY_KP8, [ 0x0f ] = KEY_KP9, [ 0x10 ] = KEY_VOLUMEUP, [ 0x11 ] = KEY_KP0, [ 0x12 ] = KEY_MENU, [ 0x13 ] = KEY_PRINT, [ 0x14 ] = KEY_VOLUMEDOWN, [ 0x16 ] = KEY_PAUSE, [ 0x18 ] = KEY_RECORD, [ 0x19 ] = KEY_REWIND, [ 0x1a ] = KEY_PLAY, [ 0x1b ] = KEY_FORWARD, [ 0x1c ] = KEY_BACKSPACE, [ 0x1e ] = KEY_STOP, [ 0x40 ] = KEY_ZOOM, }; static IR_KEYTAB_TYPE ir_codes_em_pinnacle_usb[IR_KEYTAB_SIZE] = { [ 0x3a ] = KEY_KP0, [ 0x31 ] = KEY_KP1, [ 0x32 ] = KEY_KP2, [ 0x33 ] = KEY_KP3, [ 0x34 ] = KEY_KP4, [ 0x35 ] = KEY_KP5, [ 0x36 ] = KEY_KP6, [ 0x37 ] = KEY_KP7, [ 0x38 ] = KEY_KP8, [ 0x39 ] = KEY_KP9, [ 0x2f ] = KEY_POWER, [ 0x2e ] = KEY_P, [ 0x1f ] = KEY_L, [ 0x2b ] = KEY_I, [ 0x2d ] = KEY_ZOOM, [ 0x1e ] = KEY_ZOOM, [ 0x1b ] = KEY_VOLUMEUP, [ 0x0f ] = KEY_VOLUMEDOWN, [ 0x17 ] = KEY_CHANNELUP, [ 0x1c ] = KEY_CHANNELDOWN, [ 0x25 ] = KEY_INFO, [ 0x3c ] = KEY_MUTE, [ 0x3d ] = KEY_LEFT, [ 0x3b ] = KEY_RIGHT, [ 0x3f ] = KEY_UP, [ 0x3e ] = KEY_DOWN, [ 0x1a ] = KEY_PAUSE, [ 0x1d ] = KEY_MENU, [ 0x19 ] = KEY_PLAY, [ 0x16 ] = KEY_REWIND, [ 0x13 ] = KEY_FORWARD, [ 0x15 ] = KEY_PAUSE, [ 0x0e ] = KEY_REWIND, [ 0x0d ] = KEY_PLAY, [ 0x0b ] = KEY_STOP, [ 0x07 ] = KEY_FORWARD, [ 0x27 ] = KEY_RECORD, [ 0x26 ] = KEY_TUNER, [ 0x29 ] = KEY_TEXT, [ 0x2a ] = KEY_MEDIA, [ 0x18 ] = KEY_EPG, [ 0x27 ] = KEY_RECORD, }; /* ----------------------------------------------------------------------- */ static int 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; } static int 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; } static int get_key_pinnacle_usb(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; } /* ----------------------------------------------------------------------- */ void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir) { if (disable_ir) { ir->get_key=NULL; return ; } /* detect & configure */ switch (dev->model) { case (EM2800_BOARD_UNKNOWN): break; case (EM2820_BOARD_UNKNOWN): break; case (EM2800_BOARD_TERRATEC_CINERGY_200): case (EM2820_BOARD_TERRATEC_CINERGY_250): ir->ir_codes = ir_codes_em_terratec; ir->get_key = get_key_terratec; snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Terratec)"); break; case (EM2820_BOARD_PINNACLE_USB_2): ir->ir_codes = ir_codes_em_pinnacle_usb; ir->get_key = get_key_pinnacle_usb; snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM28XX Pinnacle PCTV)"); break; case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2): ir->ir_codes = ir_codes_hauppauge_new; ir->get_key = get_key_em_haup; snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM2840 Hauppauge)"); break; case (EM2820_BOARD_MSI_VOX_USB_2): break; case (EM2800_BOARD_LEADTEK_WINFAST_USBII): break; case (EM2800_BOARD_KWORLD_USB2800): break; } } /* ---------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */