Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/media/common/ir-common.c b/drivers/media/common/ir-common.c
new file mode 100644
index 0000000..8c842e2
--- /dev/null
+++ b/drivers/media/common/ir-common.c
@@ -0,0 +1,381 @@
+/*
+ * $Id: ir-common.c,v 1.8 2005/02/22 12:28:40 kraxel Exp $
+ *
+ * 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 <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] = {
+ [ 0x00 ] = KEY_KP0, // 0
+ [ 0x01 ] = KEY_KP1, // 1
+ [ 0x02 ] = KEY_KP2, // 2
+ [ 0x03 ] = KEY_KP3, // 3
+ [ 0x04 ] = KEY_KP4, // 4
+ [ 0x05 ] = KEY_KP5, // 5
+ [ 0x06 ] = KEY_KP6, // 6
+ [ 0x07 ] = KEY_KP7, // 7
+ [ 0x08 ] = KEY_KP8, // 8
+ [ 0x09 ] = KEY_KP9, // 9
+
+ [ 0x0b ] = KEY_CHANNEL, // channel / program (japan: 11)
+ [ 0x0c ] = KEY_POWER, // standby
+ [ 0x0d ] = KEY_MUTE, // mute / demute
+ [ 0x0f ] = KEY_TV, // display
+ [ 0x10 ] = KEY_VOLUMEUP, // volume +
+ [ 0x11 ] = KEY_VOLUMEDOWN, // volume -
+ [ 0x12 ] = KEY_BRIGHTNESSUP, // brightness +
+ [ 0x13 ] = KEY_BRIGHTNESSDOWN, // brightness -
+ [ 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, // pause
+ [ 0x32 ] = KEY_REWIND, // rewind
+ [ 0x33 ] = KEY_GOTO, // go to
+ [ 0x35 ] = KEY_PLAY, // play
+ [ 0x36 ] = KEY_STOP, // stop
+ [ 0x37 ] = KEY_RECORD, // recording
+ [ 0x3c ] = KEY_TEXT, // teletext submode (Japan: 12)
+ [ 0x3d ] = KEY_SUSPEND, // system standby
+
+#if 0 /* FIXME */
+ [ 0x0a ] = KEY_RESERVED, // 1/2/3 digits (japan: 10)
+ [ 0x0e ] = KEY_RESERVED, // P.P. (personal preference)
+ [ 0x14 ] = KEY_RESERVED, // colour saturation +
+ [ 0x15 ] = KEY_RESERVED, // colour saturation -
+ [ 0x16 ] = KEY_RESERVED, // bass +
+ [ 0x17 ] = KEY_RESERVED, // bass -
+ [ 0x18 ] = KEY_RESERVED, // treble +
+ [ 0x19 ] = KEY_RESERVED, // treble -
+ [ 0x1a ] = KEY_RESERVED, // balance right
+ [ 0x1b ] = KEY_RESERVED, // balance left
+ [ 0x1c ] = KEY_RESERVED, // contrast +
+ [ 0x1d ] = KEY_RESERVED, // contrast -
+ [ 0x1f ] = KEY_RESERVED, // tint/hue +
+ [ 0x24 ] = KEY_RESERVED, // spacial stereo on/off
+ [ 0x25 ] = KEY_RESERVED, // mono / stereo (USA)
+ [ 0x27 ] = KEY_RESERVED, // tint / hue -
+ [ 0x28 ] = KEY_RESERVED, // RF switch/PIP select
+ [ 0x29 ] = KEY_RESERVED, // vote
+ [ 0x2a ] = KEY_RESERVED, // timed page/channel clck
+ [ 0x2b ] = KEY_RESERVED, // increment (USA)
+ [ 0x2c ] = KEY_RESERVED, // decrement (USA)
+ [ 0x2d ] = KEY_RESERVED, //
+ [ 0x2f ] = KEY_RESERVED, // PIP shift
+ [ 0x31 ] = KEY_RESERVED, // erase
+ [ 0x34 ] = KEY_RESERVED, // wind
+ [ 0x38 ] = KEY_RESERVED, // external 1
+ [ 0x39 ] = KEY_RESERVED, // external 2
+ [ 0x3a ] = KEY_RESERVED, // PIP display mode
+ [ 0x3b ] = KEY_RESERVED, // view data mode / advance
+ [ 0x3e ] = KEY_RESERVED, // crispener on/off
+ [ 0x3f ] = KEY_RESERVED, // system select
+#endif
+};
+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] = {
+ [ 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,
+ [ 18 ] = KEY_KP0,
+
+ [ 0 ] = KEY_POWER,
+// [ 27 ] = MTS button
+ [ 2 ] = KEY_TUNER, // TV/FM
+ [ 30 ] = KEY_VIDEO,
+// [ 22 ] = display button
+ [ 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,
+// [ 41 ] = boss key
+ [ 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 -
+// [ 42 ] = picture in picture
+ [ 33 ] = KEY_KPDOT,
+ [ 19 ] = KEY_KPENTER,
+// [ 17 ] = recall
+ [ 34 ] = KEY_BACK,
+ [ 35 ] = KEY_PLAYPAUSE,
+ [ 36 ] = KEY_NEXT,
+// [ 37 ] = time shifting
+ [ 38 ] = KEY_STOP,
+ [ 39 ] = KEY_RECORD
+// [ 40 ] = snapshot
+};
+EXPORT_SYMBOL_GPL(ir_codes_winfast);
+
+/* 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] = {
+ [ 0x00 ] = KEY_KP0, // 0
+ [ 0x01 ] = KEY_KP1, // 1
+ [ 0x02 ] = KEY_KP2, // 2
+ [ 0x03 ] = KEY_KP3, // 3
+ [ 0x04 ] = KEY_KP4, // 4
+ [ 0x05 ] = KEY_KP5, // 5
+ [ 0x06 ] = KEY_KP6, // 6
+ [ 0x07 ] = KEY_KP7, // 7
+ [ 0x08 ] = KEY_KP8, // 8
+ [ 0x09 ] = KEY_KP9, // 9
+ [ 0x0b ] = KEY_RED, // red button
+ [ 0x0c ] = KEY_OPTION, // black key without text
+ [ 0x0d ] = KEY_MENU, // menu
+ [ 0x0f ] = KEY_MUTE, // mute
+ [ 0x10 ] = KEY_VOLUMEUP, // volume +
+ [ 0x11 ] = KEY_VOLUMEDOWN, // volume -
+ [ 0x1e ] = KEY_NEXT, // 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_PREVIOUS, // 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, // play
+ [ 0x36 ] = KEY_STOP, // 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);
+
+/* -------------------------------------------------------------------------- */
+
+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));
+
+ init_input_dev(dev);
+ 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);
+ }
+#if 0
+ /* maybe do something like this ??? */
+ input_event(a, EV_IR, ir->ir_type, ir->ir_raw);
+#endif
+}
+
+/* -------------------------------------------------------------------------- */
+
+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, 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);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */