Merge commit 'v2.6.34-rc1' into perf/urgent

Conflicts:
	tools/perf/util/probe-event.c

Merge reason: Pick up -rc1 and resolve the conflict as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

5 files changed, 352 insertions, 23 deletions

diff --git a/drivers/media/IR/Makefile b/drivers/media/IR/Makefile
index df5ddb4bbbf7..171890e7a41d 100644
--- a/drivers/media/IR/Makefile
+++ b/drivers/media/IR/Makefile
@@ -1,5 +1,5 @@
 ir-common-objs  := ir-functions.o ir-keymaps.o
-ir-core-objs	:= ir-keytable.o
+ir-core-objs	:= ir-keytable.o ir-sysfs.o
 
 obj-$(CONFIG_IR_CORE) += ir-core.o
 obj-$(CONFIG_VIDEO_IR) += ir-common.o
diff --git a/drivers/media/IR/ir-functions.c b/drivers/media/IR/ir-functions.c
index 776a136616d6..ab06919ad5fc 100644
--- a/drivers/media/IR/ir-functions.c
+++ b/drivers/media/IR/ir-functions.c
@@ -52,7 +52,7 @@ static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir)
 /* -------------------------------------------------------------------------- */
 
 int ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
-		   int ir_type)
+		  const u64 ir_type)
 {
 	ir->ir_type = ir_type;
 
diff --git a/drivers/media/IR/ir-keymaps.c b/drivers/media/IR/ir-keymaps.c
index 9bbe6b1e9871..0efdefe75f32 100644
--- a/drivers/media/IR/ir-keymaps.c
+++ b/drivers/media/IR/ir-keymaps.c
@@ -3393,3 +3393,102 @@ struct ir_scancode_table ir_codes_nec_terratec_cinergy_xs_table = {
 };
 EXPORT_SYMBOL_GPL(ir_codes_nec_terratec_cinergy_xs_table);
 
+
+/* Leadtek Winfast TV USB II Deluxe remote
+   Magnus Alm <magnus.alm@gmail.com>
+ */
+static struct ir_scancode ir_codes_winfast_usbii_deluxe[] = {
+	{ 0x62, KEY_0},
+	{ 0x75, KEY_1},
+	{ 0x76, KEY_2},
+	{ 0x77, KEY_3},
+	{ 0x79, KEY_4},
+	{ 0x7a, KEY_5},
+	{ 0x7b, KEY_6},
+	{ 0x7d, KEY_7},
+	{ 0x7e, KEY_8},
+	{ 0x7f, KEY_9},
+
+	{ 0x38, KEY_CAMERA},		/* SNAPSHOT */
+	{ 0x37, KEY_RECORD},		/* RECORD */
+	{ 0x35, KEY_TIME},		/* TIMESHIFT */
+
+	{ 0x74, KEY_VOLUMEUP},		/* VOLUMEUP */
+	{ 0x78, KEY_VOLUMEDOWN},	/* VOLUMEDOWN */
+	{ 0x64, KEY_MUTE},		/* MUTE */
+
+	{ 0x21, KEY_CHANNEL},		/* SURF */
+	{ 0x7c, KEY_CHANNELUP},		/* CHANNELUP */
+	{ 0x60, KEY_CHANNELDOWN},	/* CHANNELDOWN */
+	{ 0x61, KEY_LAST},		/* LAST CHANNEL (RECALL) */
+
+	{ 0x72, KEY_VIDEO}, 		/* INPUT MODES (TV/FM) */
+
+	{ 0x70, KEY_POWER2},		/* TV ON/OFF */
+
+	{ 0x39, KEY_CYCLEWINDOWS},	/* MINIMIZE (BOSS) */
+	{ 0x3a, KEY_NEW},		/* PIP */
+	{ 0x73, KEY_ZOOM},		/* FULLSECREEN */
+
+	{ 0x66, KEY_INFO},		/* OSD (DISPLAY) */
+
+	{ 0x31, KEY_DOT},		/* '.' */
+	{ 0x63, KEY_ENTER},		/* ENTER */
+
+};
+struct ir_scancode_table ir_codes_winfast_usbii_deluxe_table = {
+	.scan = ir_codes_winfast_usbii_deluxe,
+	.size = ARRAY_SIZE(ir_codes_winfast_usbii_deluxe),
+};
+EXPORT_SYMBOL_GPL(ir_codes_winfast_usbii_deluxe_table);
+
+/* Kworld 315U
+ */
+static struct ir_scancode ir_codes_kworld_315u[] = {
+	{ 0x6143, KEY_POWER },
+	{ 0x6101, KEY_TUNER },		/* source */
+	{ 0x610b, KEY_ZOOM },
+	{ 0x6103, KEY_POWER2 },		/* shutdown */
+
+	{ 0x6104, KEY_1 },
+	{ 0x6108, KEY_2 },
+	{ 0x6102, KEY_3 },
+	{ 0x6109, KEY_CHANNELUP },
+
+	{ 0x610f, KEY_4 },
+	{ 0x6105, KEY_5 },
+	{ 0x6106, KEY_6 },
+	{ 0x6107, KEY_CHANNELDOWN },
+
+	{ 0x610c, KEY_7 },
+	{ 0x610d, KEY_8 },
+	{ 0x610a, KEY_9 },
+	{ 0x610e, KEY_VOLUMEUP },
+
+	{ 0x6110, KEY_LAST },
+	{ 0x6111, KEY_0 },
+	{ 0x6112, KEY_ENTER },
+	{ 0x6113, KEY_VOLUMEDOWN },
+
+	{ 0x6114, KEY_RECORD },
+	{ 0x6115, KEY_STOP },
+	{ 0x6116, KEY_PLAY },
+	{ 0x6117, KEY_MUTE },
+
+	{ 0x6118, KEY_UP },
+	{ 0x6119, KEY_DOWN },
+	{ 0x611a, KEY_LEFT },
+	{ 0x611b, KEY_RIGHT },
+
+	{ 0x611c, KEY_RED },
+	{ 0x611d, KEY_GREEN },
+	{ 0x611e, KEY_YELLOW },
+	{ 0x611f, KEY_BLUE },
+};
+
+struct ir_scancode_table ir_codes_kworld_315u_table = {
+	.scan = ir_codes_kworld_315u,
+	.size = ARRAY_SIZE(ir_codes_kworld_315u),
+	.ir_type = IR_TYPE_NEC,
+};
+EXPORT_SYMBOL_GPL(ir_codes_kworld_315u_table);
diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index b521ed9d6e2e..0903f539bf68 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -65,7 +65,7 @@ exit:
  * In order to reduce the quantity of table resizes, it has a minimum
  * table size of IR_TAB_MIN_SIZE.
  */
-int ir_roundup_tablesize(int n_elems)
+static int ir_roundup_tablesize(int n_elems)
 {
 	size_t size;
 
@@ -81,7 +81,6 @@ int ir_roundup_tablesize(int n_elems)
 
 	return n_elems;
 }
-EXPORT_SYMBOL_GPL(ir_roundup_tablesize);
 
 /**
  * ir_copy_table() - copies a keytable, discarding the unused entries
@@ -89,9 +88,11 @@ EXPORT_SYMBOL_GPL(ir_roundup_tablesize);
  * @origin:	origin table
  *
  * Copies all entries where the keycode is not KEY_UNKNOWN/KEY_RESERVED
+ * Also copies table size and table protocol.
+ * NOTE: It shouldn't copy the lock field
  */
 
-int ir_copy_table(struct ir_scancode_table *destin,
+static int ir_copy_table(struct ir_scancode_table *destin,
 		 const struct ir_scancode_table *origin)
 {
 	int i, j = 0;
@@ -105,12 +106,12 @@ int ir_copy_table(struct ir_scancode_table *destin,
 		j++;
 	}
 	destin->size = j;
+	destin->ir_type = origin->ir_type;
 
 	IR_dprintk(1, "Copied %d scancodes to the new keycode table\n", destin->size);
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ir_copy_table);
 
 /**
  * ir_getkeycode() - get a keycode at the evdev scancode ->keycode table
@@ -184,18 +185,14 @@ static void ir_delete_key(struct ir_scancode_table *rc_tab, int elem)
 	int newsize = rc_tab->size - 1;
 	int resize = ir_is_resize_needed(rc_tab, newsize);
 	struct ir_scancode *oldkeymap = rc_tab->scan;
-	struct ir_scancode *newkeymap;
+	struct ir_scancode *newkeymap = NULL;
 
-	if (resize) {
+	if (resize)
 		newkeymap = kzalloc(ir_roundup_tablesize(newsize) *
 				    sizeof(*newkeymap), GFP_ATOMIC);
 
-		/* There's no memory for resize. Keep the old table */
-		if (!newkeymap)
-			resize = 0;
-	}
-
-	if (!resize) {
+	/* There's no memory for resize. Keep the old table */
+	if (!resize || !newkeymap) {
 		newkeymap = oldkeymap;
 
 		/* We'll modify the live table. Lock it */
@@ -399,12 +396,14 @@ EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
  * @input_dev:	the struct input_dev descriptor of the device
  * @rc_tab:	the struct ir_scancode_table table of scancode/keymap
  *
- * This routine is used to initialize the input infrastructure to work with
- * an IR.
- * It should be called before registering the IR device.
+ * This routine is used to initialize the input infrastructure
+ * to work with an IR.
+ * It will register the input/evdev interface for the device and
+ * register the syfs code for IR class
  */
 int ir_input_register(struct input_dev *input_dev,
-		      struct ir_scancode_table *rc_tab)
+		      const struct ir_scancode_table *rc_tab,
+		      const struct ir_dev_props *props)
 {
 	struct ir_input_dev *ir_dev;
 	struct ir_scancode  *keymap    = rc_tab->scan;
@@ -417,19 +416,22 @@ int ir_input_register(struct input_dev *input_dev,
 	if (!ir_dev)
 		return -ENOMEM;
 
-	spin_lock_init(&rc_tab->lock);
+	spin_lock_init(&ir_dev->rc_tab.lock);
 
 	ir_dev->rc_tab.size = ir_roundup_tablesize(rc_tab->size);
 	ir_dev->rc_tab.scan = kzalloc(ir_dev->rc_tab.size *
 				    sizeof(struct ir_scancode), GFP_KERNEL);
-	if (!ir_dev->rc_tab.scan)
+	if (!ir_dev->rc_tab.scan) {
+		kfree(ir_dev);
 		return -ENOMEM;
+	}
 
 	IR_dprintk(1, "Allocated space for %d keycode entries (%zd bytes)\n",
 		ir_dev->rc_tab.size,
 		ir_dev->rc_tab.size * sizeof(ir_dev->rc_tab.scan));
 
 	ir_copy_table(&ir_dev->rc_tab, rc_tab);
+	ir_dev->props = props;
 
 	/* set the bits for the keys */
 	IR_dprintk(1, "key map size: %d\n", rc_tab->size);
@@ -447,16 +449,31 @@ int ir_input_register(struct input_dev *input_dev,
 	input_set_drvdata(input_dev, ir_dev);
 
 	rc = input_register_device(input_dev);
+	if (rc < 0)
+		goto err;
+
+	rc = ir_register_class(input_dev);
 	if (rc < 0) {
-		kfree(rc_tab->scan);
-		kfree(ir_dev);
-		input_set_drvdata(input_dev, NULL);
+		input_unregister_device(input_dev);
+		goto err;
 	}
 
+	return 0;
+
+err:
+	kfree(rc_tab->scan);
+	kfree(ir_dev);
+	input_set_drvdata(input_dev, NULL);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(ir_input_register);
 
+/**
+ * ir_input_unregister() - unregisters IR and frees resources
+ * @input_dev:	the struct input_dev descriptor of the device
+
+ * This routine is used to free memory and de-register interfaces.
+ */
 void ir_input_unregister(struct input_dev *dev)
 {
 	struct ir_input_dev *ir_dev = input_get_drvdata(dev);
@@ -472,6 +489,8 @@ void ir_input_unregister(struct input_dev *dev)
 	kfree(rc_tab->scan);
 	rc_tab->scan = NULL;
 
+	ir_unregister_class(dev);
+
 	kfree(ir_dev);
 	input_unregister_device(dev);
 }
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
new file mode 100644
index 000000000000..bf5fbcd84238
--- /dev/null
+++ b/drivers/media/IR/ir-sysfs.c
@@ -0,0 +1,211 @@
+/* ir-register.c - handle IR scancode->keycode tables
+ *
+ * Copyright (C) 2009 by Mauro Carvalho Chehab <mchehab@redhat.com>
+ *
+ * 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 version 2 of the License.
+ *
+ *  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.
+ */
+
+#include <linux/input.h>
+#include <linux/device.h>
+#include <media/ir-core.h>
+
+#define IRRCV_NUM_DEVICES	256
+
+/* bit array to represent IR sysfs device number */
+static unsigned long ir_core_dev_number;
+
+/* class for /sys/class/irrcv */
+static struct class *ir_input_class;
+
+/**
+ * show_protocol() - shows the current IR protocol
+ * @d:		the device descriptor
+ * @mattr:	the device attribute struct (unused)
+ * @buf:	a pointer to the output buffer
+ *
+ * This routine is a callback routine for input read the IR protocol type.
+ * it is trigged by reading /sys/class/irrcv/irrcv?/current_protocol.
+ * It returns the protocol name, as understood by the driver.
+ */
+static ssize_t show_protocol(struct device *d,
+			     struct device_attribute *mattr, char *buf)
+{
+	char *s;
+	struct ir_input_dev *ir_dev = dev_get_drvdata(d);
+	u64 ir_type = ir_dev->rc_tab.ir_type;
+
+	IR_dprintk(1, "Current protocol is %lld\n", (long long)ir_type);
+
+	/* FIXME: doesn't support multiple protocols at the same time */
+	if (ir_type == IR_TYPE_UNKNOWN)
+		s = "Unknown";
+	else if (ir_type == IR_TYPE_RC5)
+		s = "RC-5";
+	else if (ir_type == IR_TYPE_PD)
+		s = "Pulse/distance";
+	else if (ir_type == IR_TYPE_NEC)
+		s = "NEC";
+	else
+		s = "Other";
+
+	return sprintf(buf, "%s\n", s);
+}
+
+/**
+ * store_protocol() - shows the current IR protocol
+ * @d:		the device descriptor
+ * @mattr:	the device attribute struct (unused)
+ * @buf:	a pointer to the input buffer
+ * @len:	length of the input buffer
+ *
+ * This routine is a callback routine for changing the IR protocol type.
+ * it is trigged by reading /sys/class/irrcv/irrcv?/current_protocol.
+ * It changes the IR the protocol name, if the IR type is recognized
+ * by the driver.
+ * If an unknown protocol name is used, returns -EINVAL.
+ */
+static ssize_t store_protocol(struct device *d,
+			      struct device_attribute *mattr,
+			      const char *data,
+			      size_t len)
+{
+	struct ir_input_dev *ir_dev = dev_get_drvdata(d);
+	u64 ir_type = IR_TYPE_UNKNOWN;
+	int rc = -EINVAL;
+	unsigned long flags;
+	char *buf;
+
+	buf = strsep((char **) &data, "\n");
+
+	if (!strcasecmp(buf, "rc-5"))
+		ir_type = IR_TYPE_RC5;
+	else if (!strcasecmp(buf, "pd"))
+		ir_type = IR_TYPE_PD;
+	else if (!strcasecmp(buf, "nec"))
+		ir_type = IR_TYPE_NEC;
+
+	if (ir_type == IR_TYPE_UNKNOWN) {
+		IR_dprintk(1, "Error setting protocol to %lld\n",
+			   (long long)ir_type);
+		return -EINVAL;
+	}
+
+	if (ir_dev->props && ir_dev->props->change_protocol)
+		rc = ir_dev->props->change_protocol(ir_dev->props->priv,
+						    ir_type);
+
+	if (rc < 0) {
+		IR_dprintk(1, "Error setting protocol to %lld\n",
+			   (long long)ir_type);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&ir_dev->rc_tab.lock, flags);
+	ir_dev->rc_tab.ir_type = ir_type;
+	spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags);
+
+	IR_dprintk(1, "Current protocol is %lld\n",
+		   (long long)ir_type);
+
+	return len;
+}
+
+/*
+ * Static device attribute struct with the sysfs attributes for IR's
+ */
+static DEVICE_ATTR(current_protocol, S_IRUGO | S_IWUSR,
+		   show_protocol, store_protocol);
+
+static struct attribute *ir_dev_attrs[] = {
+	&dev_attr_current_protocol.attr,
+	NULL,
+};
+
+/**
+ * ir_register_class() - creates the sysfs for /sys/class/irrcv/irrcv?
+ * @input_dev:	the struct input_dev descriptor of the device
+ *
+ * This routine is used to register the syfs code for IR class
+ */
+int ir_register_class(struct input_dev *input_dev)
+{
+	int rc;
+	struct kobject *kobj;
+
+	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+	int devno = find_first_zero_bit(&ir_core_dev_number,
+					IRRCV_NUM_DEVICES);
+
+	if (unlikely(devno < 0))
+		return devno;
+
+	ir_dev->attr.attrs = ir_dev_attrs;
+	ir_dev->class_dev = device_create(ir_input_class, NULL,
+					  input_dev->dev.devt, ir_dev,
+					  "irrcv%d", devno);
+	kobj = &ir_dev->class_dev->kobj;
+
+	printk(KERN_WARNING "Creating IR device %s\n", kobject_name(kobj));
+	rc = sysfs_create_group(kobj, &ir_dev->attr);
+	if (unlikely(rc < 0)) {
+		device_destroy(ir_input_class, input_dev->dev.devt);
+		return -ENOMEM;
+	}
+
+	ir_dev->devno = devno;
+	set_bit(devno, &ir_core_dev_number);
+
+	return 0;
+};
+
+/**
+ * ir_unregister_class() - removes the sysfs for sysfs for
+ *			   /sys/class/irrcv/irrcv?
+ * @input_dev:	the struct input_dev descriptor of the device
+ *
+ * This routine is used to unregister the syfs code for IR class
+ */
+void ir_unregister_class(struct input_dev *input_dev)
+{
+	struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+	struct kobject *kobj;
+
+	clear_bit(ir_dev->devno, &ir_core_dev_number);
+
+	kobj = &ir_dev->class_dev->kobj;
+
+	sysfs_remove_group(kobj, &ir_dev->attr);
+	device_destroy(ir_input_class, input_dev->dev.devt);
+
+	kfree(ir_dev->attr.name);
+}
+
+/*
+ * Init/exit code for the module. Basically, creates/removes /sys/class/irrcv
+ */
+
+static int __init ir_core_init(void)
+{
+	ir_input_class = class_create(THIS_MODULE, "irrcv");
+	if (IS_ERR(ir_input_class)) {
+		printk(KERN_ERR "ir_core: unable to register irrcv class\n");
+		return PTR_ERR(ir_input_class);
+	}
+
+	return 0;
+}
+
+static void __exit ir_core_exit(void)
+{
+	class_destroy(ir_input_class);
+}
+
+module_init(ir_core_init);
+module_exit(ir_core_exit);