Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 381 insertions, 0 deletions

diff --git a/drivers/media/common/ir-common.c b/drivers/media/common/ir-common.c
new file mode 100644
index 000000000000..8c842e2f59a2
--- /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:
+ */