diff options
Diffstat (limited to 'drivers/media/common/ir-common.c')
| -rw-r--r-- | drivers/media/common/ir-common.c | 519 |
1 files changed, 0 insertions, 519 deletions
diff --git a/drivers/media/common/ir-common.c b/drivers/media/common/ir-common.c deleted file mode 100644 index 97fa3fc571c4..000000000000 --- a/drivers/media/common/ir-common.c +++ /dev/null @@ -1,519 +0,0 @@ -/* - * - * some common structs and functions to handle infrared remotes via - * input layer ... - * - * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] - * - * 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/moduleparam.h> -#include <linux/string.h> -#include <media/ir-common.h> - -/* -------------------------------------------------------------------------- */ - -MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); -MODULE_LICENSE("GPL"); - -static int repeat = 1; -module_param(repeat, int, 0444); -MODULE_PARM_DESC(repeat,"auto-repeat for IR keys (default: on)"); - -static int debug = 0; /* debug level (0,1,2) */ -module_param(debug, int, 0644); - -#define dprintk(level, fmt, arg...) if (debug >= level) \ - printk(KERN_DEBUG fmt , ## arg) - -/* -------------------------------------------------------------------------- */ - -/* generic RC5 keytable */ -/* see http://users.pandora.be/nenya/electronics/rc5/codes00.htm */ -/* used by old (black) Hauppauge remotes */ -IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE] = { - /* Keys 0 to 9 */ - [ 0x00 ] = KEY_KP0, - [ 0x01 ] = KEY_KP1, - [ 0x02 ] = KEY_KP2, - [ 0x03 ] = KEY_KP3, - [ 0x04 ] = KEY_KP4, - [ 0x05 ] = KEY_KP5, - [ 0x06 ] = KEY_KP6, - [ 0x07 ] = KEY_KP7, - [ 0x08 ] = KEY_KP8, - [ 0x09 ] = KEY_KP9, - - [ 0x0b ] = KEY_CHANNEL, /* channel / program (japan: 11) */ - [ 0x0c ] = KEY_POWER, /* standby */ - [ 0x0d ] = KEY_MUTE, /* mute / demute */ - [ 0x0f ] = KEY_TV, /* display */ - [ 0x10 ] = KEY_VOLUMEUP, - [ 0x11 ] = KEY_VOLUMEDOWN, - [ 0x12 ] = KEY_BRIGHTNESSUP, - [ 0x13 ] = KEY_BRIGHTNESSDOWN, - [ 0x1e ] = KEY_SEARCH, /* search + */ - [ 0x20 ] = KEY_CHANNELUP, /* channel / program + */ - [ 0x21 ] = KEY_CHANNELDOWN, /* channel / program - */ - [ 0x22 ] = KEY_CHANNEL, /* alt / channel */ - [ 0x23 ] = KEY_LANGUAGE, /* 1st / 2nd language */ - [ 0x26 ] = KEY_SLEEP, /* sleeptimer */ - [ 0x2e ] = KEY_MENU, /* 2nd controls (USA: menu) */ - [ 0x30 ] = KEY_PAUSE, - [ 0x32 ] = KEY_REWIND, - [ 0x33 ] = KEY_GOTO, - [ 0x35 ] = KEY_PLAY, - [ 0x36 ] = KEY_STOP, - [ 0x37 ] = KEY_RECORD, /* recording */ - [ 0x3c ] = KEY_TEXT, /* teletext submode (Japan: 12) */ - [ 0x3d ] = KEY_SUSPEND, /* system standby */ - -}; -EXPORT_SYMBOL_GPL(ir_codes_rc5_tv); - -/* Table for Leadtek Winfast Remote Controls - used by both bttv and cx88 */ -IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE] = { - /* Keys 0 to 9 */ - [ 18 ] = KEY_KP0, - [ 5 ] = KEY_KP1, - [ 6 ] = KEY_KP2, - [ 7 ] = KEY_KP3, - [ 9 ] = KEY_KP4, - [ 10 ] = KEY_KP5, - [ 11 ] = KEY_KP6, - [ 13 ] = KEY_KP7, - [ 14 ] = KEY_KP8, - [ 15 ] = KEY_KP9, - - [ 0 ] = KEY_POWER, - [ 2 ] = KEY_TUNER, /* TV/FM */ - [ 30 ] = KEY_VIDEO, - [ 4 ] = KEY_VOLUMEUP, - [ 8 ] = KEY_VOLUMEDOWN, - [ 12 ] = KEY_CHANNELUP, - [ 16 ] = KEY_CHANNELDOWN, - [ 3 ] = KEY_ZOOM, /* fullscreen */ - [ 31 ] = KEY_SUBTITLE, /* closed caption/teletext */ - [ 32 ] = KEY_SLEEP, - [ 20 ] = KEY_MUTE, - [ 43 ] = KEY_RED, - [ 44 ] = KEY_GREEN, - [ 45 ] = KEY_YELLOW, - [ 46 ] = KEY_BLUE, - [ 24 ] = KEY_KPPLUS, /* fine tune + */ - [ 25 ] = KEY_KPMINUS, /* fine tune - */ - [ 33 ] = KEY_KPDOT, - [ 19 ] = KEY_KPENTER, - [ 34 ] = KEY_BACK, - [ 35 ] = KEY_PLAYPAUSE, - [ 36 ] = KEY_NEXT, - [ 38 ] = KEY_STOP, - [ 39 ] = KEY_RECORD -}; -EXPORT_SYMBOL_GPL(ir_codes_winfast); - -IR_KEYTAB_TYPE ir_codes_pinnacle[IR_KEYTAB_SIZE] = { - [ 0x59 ] = KEY_MUTE, - [ 0x4a ] = KEY_POWER, - - [ 0x18 ] = KEY_TEXT, - [ 0x26 ] = KEY_TV, - [ 0x3d ] = KEY_PRINT, - - [ 0x48 ] = KEY_RED, - [ 0x04 ] = KEY_GREEN, - [ 0x11 ] = KEY_YELLOW, - [ 0x00 ] = KEY_BLUE, - - [ 0x2d ] = KEY_VOLUMEUP, - [ 0x1e ] = KEY_VOLUMEDOWN, - - [ 0x49 ] = KEY_MENU, - - [ 0x16 ] = KEY_CHANNELUP, - [ 0x17 ] = KEY_CHANNELDOWN, - - [ 0x20 ] = KEY_UP, - [ 0x21 ] = KEY_DOWN, - [ 0x22 ] = KEY_LEFT, - [ 0x23 ] = KEY_RIGHT, - [ 0x0d ] = KEY_SELECT, - - - - [ 0x08 ] = KEY_BACK, - [ 0x07 ] = KEY_REFRESH, - - [ 0x2f ] = KEY_ZOOM, - [ 0x29 ] = KEY_RECORD, - - [ 0x4b ] = KEY_PAUSE, - [ 0x4d ] = KEY_REWIND, - [ 0x2e ] = KEY_PLAY, - [ 0x4e ] = KEY_FORWARD, - [ 0x53 ] = KEY_PREVIOUS, - [ 0x4c ] = KEY_STOP, - [ 0x54 ] = KEY_NEXT, - - [ 0x69 ] = KEY_KP0, - [ 0x6a ] = KEY_KP1, - [ 0x6b ] = KEY_KP2, - [ 0x6c ] = KEY_KP3, - [ 0x6d ] = KEY_KP4, - [ 0x6e ] = KEY_KP5, - [ 0x6f ] = KEY_KP6, - [ 0x70 ] = KEY_KP7, - [ 0x71 ] = KEY_KP8, - [ 0x72 ] = KEY_KP9, - - [ 0x74 ] = KEY_CHANNEL, - [ 0x0a ] = KEY_BACKSPACE, -}; - -EXPORT_SYMBOL_GPL(ir_codes_pinnacle); - -/* empty keytable, can be used as placeholder for not-yet created keytables */ -IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE] = { - [ 42 ] = KEY_COFFEE, -}; -EXPORT_SYMBOL_GPL(ir_codes_empty); - -/* Hauppauge: the newer, gray remotes (seems there are multiple - * slightly different versions), shipped with cx88+ivtv cards. - * almost rc5 coding, but some non-standard keys */ -IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE] = { - /* Keys 0 to 9 */ - [ 0x00 ] = KEY_KP0, - [ 0x01 ] = KEY_KP1, - [ 0x02 ] = KEY_KP2, - [ 0x03 ] = KEY_KP3, - [ 0x04 ] = KEY_KP4, - [ 0x05 ] = KEY_KP5, - [ 0x06 ] = KEY_KP6, - [ 0x07 ] = KEY_KP7, - [ 0x08 ] = KEY_KP8, - [ 0x09 ] = KEY_KP9, - - [ 0x0a ] = KEY_TEXT, /* keypad asterisk as well */ - [ 0x0b ] = KEY_RED, /* red button */ - [ 0x0c ] = KEY_RADIO, - [ 0x0d ] = KEY_MENU, - [ 0x0e ] = KEY_SUBTITLE, /* also the # key */ - [ 0x0f ] = KEY_MUTE, - [ 0x10 ] = KEY_VOLUMEUP, - [ 0x11 ] = KEY_VOLUMEDOWN, - [ 0x12 ] = KEY_PREVIOUS, /* previous channel */ - [ 0x14 ] = KEY_UP, - [ 0x15 ] = KEY_DOWN, - [ 0x16 ] = KEY_LEFT, - [ 0x17 ] = KEY_RIGHT, - [ 0x18 ] = KEY_VIDEO, /* Videos */ - [ 0x19 ] = KEY_AUDIO, /* Music */ - /* 0x1a: Pictures - presume this means - "Multimedia Home Platform" - - no "PICTURES" key in input.h - */ - [ 0x1a ] = KEY_MHP, - - [ 0x1b ] = KEY_EPG, /* Guide */ - [ 0x1c ] = KEY_TV, - [ 0x1e ] = KEY_NEXTSONG, /* skip >| */ - [ 0x1f ] = KEY_EXIT, /* back/exit */ - [ 0x20 ] = KEY_CHANNELUP, /* channel / program + */ - [ 0x21 ] = KEY_CHANNELDOWN, /* channel / program - */ - [ 0x22 ] = KEY_CHANNEL, /* source (old black remote) */ - [ 0x24 ] = KEY_PREVIOUSSONG, /* replay |< */ - [ 0x25 ] = KEY_ENTER, /* OK */ - [ 0x26 ] = KEY_SLEEP, /* minimize (old black remote) */ - [ 0x29 ] = KEY_BLUE, /* blue key */ - [ 0x2e ] = KEY_GREEN, /* green button */ - [ 0x30 ] = KEY_PAUSE, /* pause */ - [ 0x32 ] = KEY_REWIND, /* backward << */ - [ 0x34 ] = KEY_FASTFORWARD, /* forward >> */ - [ 0x35 ] = KEY_PLAY, - [ 0x36 ] = KEY_STOP, - [ 0x37 ] = KEY_RECORD, /* recording */ - [ 0x38 ] = KEY_YELLOW, /* yellow key */ - [ 0x3b ] = KEY_SELECT, /* top right button */ - [ 0x3c ] = KEY_ZOOM, /* full */ - [ 0x3d ] = KEY_POWER, /* system power (green button) */ -}; -EXPORT_SYMBOL(ir_codes_hauppauge_new); - -IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = { - [ 2 ] = KEY_KP0, - [ 1 ] = KEY_KP1, - [ 11 ] = KEY_KP2, - [ 27 ] = KEY_KP3, - [ 5 ] = KEY_KP4, - [ 9 ] = KEY_KP5, - [ 21 ] = KEY_KP6, - [ 6 ] = KEY_KP7, - [ 10 ] = KEY_KP8, - [ 18 ] = KEY_KP9, - - [ 3 ] = KEY_TUNER, /* TV/FM */ - [ 7 ] = KEY_SEARCH, /* scan */ - [ 28 ] = KEY_ZOOM, /* full screen */ - [ 30 ] = KEY_POWER, - [ 23 ] = KEY_VOLUMEDOWN, - [ 31 ] = KEY_VOLUMEUP, - [ 20 ] = KEY_CHANNELDOWN, - [ 22 ] = KEY_CHANNELUP, - [ 24 ] = KEY_MUTE, - - [ 0 ] = KEY_LIST, /* source */ - [ 19 ] = KEY_INFO, /* loop */ - [ 16 ] = KEY_LAST, /* +100 */ - [ 13 ] = KEY_CLEAR, /* reset */ - [ 12 ] = BTN_RIGHT, /* fun++ */ - [ 4 ] = BTN_LEFT, /* fun-- */ - [ 14 ] = KEY_GOTO, /* function */ - [ 15 ] = KEY_STOP, /* freeze */ -}; -EXPORT_SYMBOL(ir_codes_pixelview); - -/* -------------------------------------------------------------------------- */ - -static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir) -{ - if (KEY_RESERVED == ir->keycode) { - printk(KERN_INFO "%s: unknown key: key=0x%02x raw=0x%02x down=%d\n", - dev->name,ir->ir_key,ir->ir_raw,ir->keypressed); - return; - } - dprintk(1,"%s: key event code=%d down=%d\n", - dev->name,ir->keycode,ir->keypressed); - input_report_key(dev,ir->keycode,ir->keypressed); - input_sync(dev); -} - -/* -------------------------------------------------------------------------- */ - -void ir_input_init(struct input_dev *dev, struct ir_input_state *ir, - int ir_type, IR_KEYTAB_TYPE *ir_codes) -{ - int i; - - ir->ir_type = ir_type; - if (ir_codes) - memcpy(ir->ir_codes, ir_codes, sizeof(ir->ir_codes)); - - - dev->keycode = ir->ir_codes; - dev->keycodesize = sizeof(IR_KEYTAB_TYPE); - dev->keycodemax = IR_KEYTAB_SIZE; - for (i = 0; i < IR_KEYTAB_SIZE; i++) - set_bit(ir->ir_codes[i], dev->keybit); - clear_bit(0, dev->keybit); - - set_bit(EV_KEY, dev->evbit); - if (repeat) - set_bit(EV_REP, dev->evbit); -} - -void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir) -{ - if (ir->keypressed) { - ir->keypressed = 0; - ir_input_key_event(dev,ir); - } -} - -void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir, - u32 ir_key, u32 ir_raw) -{ - u32 keycode = IR_KEYCODE(ir->ir_codes, ir_key); - - if (ir->keypressed && ir->keycode != keycode) { - ir->keypressed = 0; - ir_input_key_event(dev,ir); - } - if (!ir->keypressed) { - ir->ir_key = ir_key; - ir->ir_raw = ir_raw; - ir->keycode = keycode; - ir->keypressed = 1; - ir_input_key_event(dev,ir); - } -} - -/* -------------------------------------------------------------------------- */ - -u32 ir_extract_bits(u32 data, u32 mask) -{ - int mbit, vbit; - u32 value; - - value = 0; - vbit = 0; - for (mbit = 0; mbit < 32; mbit++) { - if (!(mask & ((u32)1 << mbit))) - continue; - if (data & ((u32)1 << mbit)) - value |= (1 << vbit); - vbit++; - } - return value; -} - -static int inline getbit(u32 *samples, int bit) -{ - return (samples[bit/32] & (1 << (31-(bit%32)))) ? 1 : 0; -} - -/* sump raw samples for visual debugging ;) */ -int ir_dump_samples(u32 *samples, int count) -{ - int i, bit, start; - - printk(KERN_DEBUG "ir samples: "); - start = 0; - for (i = 0; i < count * 32; i++) { - bit = getbit(samples,i); - if (bit) - start = 1; - if (0 == start) - continue; - printk("%s", bit ? "#" : "_"); - } - printk("\n"); - return 0; -} - -/* decode raw samples, pulse distance coding used by NEC remotes */ -int ir_decode_pulsedistance(u32 *samples, int count, int low, int high) -{ - int i,last,bit,len; - u32 curBit; - u32 value; - - /* find start burst */ - for (i = len = 0; i < count * 32; i++) { - bit = getbit(samples,i); - if (bit) { - len++; - } else { - if (len >= 29) - break; - len = 0; - } - } - - /* start burst to short */ - if (len < 29) - return 0xffffffff; - - /* find start silence */ - for (len = 0; i < count * 32; i++) { - bit = getbit(samples,i); - if (bit) { - break; - } else { - len++; - } - } - - /* silence to short */ - if (len < 7) - return 0xffffffff; - - /* go decoding */ - len = 0; - last = 1; - value = 0; curBit = 1; - for (; i < count * 32; i++) { - bit = getbit(samples,i); - if (last) { - if(bit) { - continue; - } else { - len = 1; - } - } else { - if (bit) { - if (len > (low + high) /2) - value |= curBit; - curBit <<= 1; - if (curBit == 1) - break; - } else { - len++; - } - } - last = bit; - } - - return value; -} - -/* decode raw samples, biphase coding, used by rc5 for example */ -int ir_decode_biphase(u32 *samples, int count, int low, int high) -{ - int i,last,bit,len,flips; - u32 value; - - /* find start bit (1) */ - for (i = 0; i < 32; i++) { - bit = getbit(samples,i); - if (bit) - break; - } - - /* go decoding */ - len = 0; - flips = 0; - value = 1; - for (; i < count * 32; i++) { - if (len > high) - break; - if (flips > 1) - break; - last = bit; - bit = getbit(samples,i); - if (last == bit) { - len++; - continue; - } - if (len < low) { - len++; - flips++; - continue; - } - value <<= 1; - value |= bit; - flips = 0; - len = 1; - } - return value; -} - -EXPORT_SYMBOL_GPL(ir_input_init); -EXPORT_SYMBOL_GPL(ir_input_nokey); -EXPORT_SYMBOL_GPL(ir_input_keydown); - -EXPORT_SYMBOL_GPL(ir_extract_bits); -EXPORT_SYMBOL_GPL(ir_dump_samples); -EXPORT_SYMBOL_GPL(ir_decode_biphase); -EXPORT_SYMBOL_GPL(ir_decode_pulsedistance); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ - |