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Diffstat (limited to 'linux/drivers/media/common/ir-common.c')
-rw-r--r--linux/drivers/media/common/ir-common.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/linux/drivers/media/common/ir-common.c b/linux/drivers/media/common/ir-common.c
new file mode 100644
index 000000000..78c3590f8
--- /dev/null
+++ b/linux/drivers/media/common/ir-common.c
@@ -0,0 +1,227 @@
+/*
+ * 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/version.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#include "ir-common.h"
+#else
+#include <media/ir-common.h>
+#endif
+
+/* -------------------------------------------------------------------------- */
+
+MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
+MODULE_LICENSE("GPL");
+
+static int repeat = 1;
+MODULE_PARM(repeat,"i");
+MODULE_PARM_DESC(repeat,"auto-repeat for IR keys (default: on)");
+
+static int debug = 0; /* debug level (0,1,2) */
+MODULE_PARM(debug,"i");
+
+#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 */
+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
+
+#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
+ [ 0x3c ] = KEY_RESERVED, // teletext submode (Japan: 12)
+ [ 0x3d ] = KEY_RESERVED, // system standby
+ [ 0x3e ] = KEY_RESERVED, // crispener on/off
+ [ 0x3f ] = KEY_RESERVED, // system select
+#endif
+};
+EXPORT_SYMBOL_GPL(ir_codes_rc5_tv);
+
+/* 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);
+
+/* -------------------------------------------------------------------------- */
+
+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);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+ input_sync(dev);
+#endif
+}
+
+/* -------------------------------------------------------------------------- */
+
+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));
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+ init_input_dev(dev);
+#endif
+ 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;
+}
+
+EXPORT_SYMBOL_GPL(ir_input_init);
+EXPORT_SYMBOL_GPL(ir_input_nokey);
+EXPORT_SYMBOL_GPL(ir_input_keydown);
+EXPORT_SYMBOL_GPL(ir_extract_bits);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
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