Merge branch 'next' into for-linus

Dmitry Torokhov
2 parents 577c9c456f 59cc1dd97c
Showing 28 changed files Side-by-side Diff
Documentation/input/rotary-encoder.txt
arch/mips/include/asm/mach-rc32434/gpio.h
arch/mips/rb532/devices.c
drivers/input/input.c
drivers/input/keyboard/atkbd.c
drivers/input/keyboard/bf54x-keys.c
drivers/input/keyboard/hilkbd.c
drivers/input/misc/Kconfig
drivers/input/misc/Makefile
drivers/input/misc/ati_remote2.c
drivers/input/misc/rb532_button.c
drivers/input/misc/rotary_encoder.c
drivers/input/mouse/Kconfig
drivers/input/mouse/Makefile
drivers/input/mouse/hgpk.c
drivers/input/mouse/maplemouse.c
drivers/input/mouse/pc110pad.c
drivers/input/serio/i8042-x86ia64io.h
drivers/input/touchscreen/Kconfig
drivers/input/touchscreen/Makefile
+rotary-encoder - a generic driver for GPIO connected devices
+Daniel Mack <daniel@caiaq.de>, Feb 2009
+
+0. Function
+-----------
+
+Rotary encoders are devices which are connected to the CPU or other
+peripherals with two wires. The outputs are phase-shifted by 90 degrees
+and by triggering on falling and rising edges, the turn direction can
+be determined.
+
+The phase diagram of these two outputs look like this:
+
+                  _____       _____       _____
+                 |     |     |     |     |     |
+  Channel A  ____|     |_____|     |_____|     |____
+
+                 :  :  :  :  :  :  :  :  :  :  :  :
+            __       _____       _____       _____
+              |     |     |     |     |     |     |
+  Channel B   |_____|     |_____|     |_____|     |__
+
+                 :  :  :  :  :  :  :  :  :  :  :  :
+  Event          a  b  c  d  a  b  c  d  a  b  c  d
+
+                |<-------->|
+	          one step
+
+
+For more information, please see
+	http://en.wikipedia.org/wiki/Rotary_encoder
+
+
+1. Events / state machine
+-------------------------
+
+a) Rising edge on channel A, channel B in low state
+	This state is used to recognize a clockwise turn
+
+b) Rising edge on channel B, channel A in high state
+	When entering this state, the encoder is put into 'armed' state,
+	meaning that there it has seen half the way of a one-step transition.
+
+c) Falling edge on channel A, channel B in high state
+	This state is used to recognize a counter-clockwise turn
+
+d) Falling edge on channel B, channel A in low state
+	Parking position. If the encoder enters this state, a full transition
+	should have happend, unless it flipped back on half the way. The
+	'armed' state tells us about that.
+
+2. Platform requirements
+------------------------
+
+As there is no hardware dependent call in this driver, the platform it is
+used with must support gpiolib. Another requirement is that IRQs must be
+able to fire on both edges.
+
+
+3. Board integration
+--------------------
+
+To use this driver in your system, register a platform_device with the
+name 'rotary-encoder' and associate the IRQs and some specific platform
+data with it.
+
+struct rotary_encoder_platform_data is declared in
+include/linux/rotary-encoder.h and needs to be filled with the number of
+steps the encoder has and can carry information about externally inverted
+signals (because of used invertig buffer or other reasons).
+
+Because GPIO to IRQ mapping is platform specific, this information must
+be given in seperately to the driver. See the example below.
+
+---------<snip>---------
+
+/* board support file example */
+
+#include <linux/input.h>
+#include <linux/rotary_encoder.h>
+
+#define GPIO_ROTARY_A 1
+#define GPIO_ROTARY_B 2
+
+static struct rotary_encoder_platform_data my_rotary_encoder_info = {
+	.steps		= 24,
+	.axis		= ABS_X,
+	.gpio_a		= GPIO_ROTARY_A,
+	.gpio_b		= GPIO_ROTARY_B,
+	.inverted_a	= 0,
+	.inverted_b	= 0,
+};
+
+static struct platform_device rotary_encoder_device = {
+	.name		= "rotary-encoder",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &my_rotary_encoder_info,
+	}
+};
@@ -80,6 +80,9 @@
 /* Compact Flash GPIO pin */
 #define CF_GPIO_NUM		13
  
+/* S1 button GPIO (shared with UART0_SIN) */
+#define GPIO_BTN_S1		1
+
 extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
 extern void rb532_gpio_set_istat(int bit, unsigned gpio);
 extern void rb532_gpio_set_func(unsigned gpio);
@@ -200,26 +200,9 @@
 	.id = -1,
 };
  
-static struct gpio_keys_button rb532_gpio_btn[] = {
-	{
-		.gpio = 1,
-		.code = BTN_0,
-		.desc = "S1",
-		.active_low = 1,
-	}
-};
-
-static struct gpio_keys_platform_data rb532_gpio_btn_data = {
-	.buttons = rb532_gpio_btn,
-	.nbuttons = ARRAY_SIZE(rb532_gpio_btn),
-};
-
 static struct platform_device rb532_button = {
-	.name 	= "gpio-keys",
+	.name	= "rb532-button",
 	.id	= -1,
-	.dev	= {
-		.platform_data = &rb532_gpio_btn_data,
-	}
 };
  
 static struct resource rb532_wdt_res[] = {
@@ -132,6 +132,11 @@
 	}
 }
  
+static void input_stop_autorepeat(struct input_dev *dev)
+{
+	del_timer(&dev->timer);
+}
+
 #define INPUT_IGNORE_EVENT	0
 #define INPUT_PASS_TO_HANDLERS	1
 #define INPUT_PASS_TO_DEVICE	2
@@ -167,6 +172,8 @@
 				__change_bit(code, dev->key);
 				if (value)
 					input_start_autorepeat(dev, code);
+				else
+					input_stop_autorepeat(dev);
 			}
  
 			disposition = INPUT_PASS_TO_HANDLERS;
  
  
@@ -737,11 +744,11 @@
  
 static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
 {
-	int state = input_devices_state;
-
 	poll_wait(file, &input_devices_poll_wait, wait);
-	if (state != input_devices_state)
+	if (file->f_version != input_devices_state) {
+		file->f_version = input_devices_state;
 		return POLLIN | POLLRDNORM;
+	}
  
 	return 0;
 }
@@ -229,7 +229,8 @@
 /*
  * System-specific ketymap fixup routine
  */
-static void (*atkbd_platform_fixup)(struct atkbd *);
+static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
+static void *atkbd_platform_fixup_data;
  
 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
 				ssize_t (*handler)(struct atkbd *, char *));
  
  
  
  
  
  
  
  
  
  
  
  
@@ -834,87 +835,64 @@
 }
  
 /*
- * Most special keys (Fn+F?) on Dell laptops do not generate release
- * events so we have to do it ourselves.
+ * generate release events for the keycodes given in data
  */
-static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd)
+static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
+						const void *data)
 {
-	static const unsigned int forced_release_keys[] = {
-		0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
-	};
-	int i;
+	const unsigned int *keys = data;
+	unsigned int i;
  
 	if (atkbd->set == 2)
-		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-			__set_bit(forced_release_keys[i],
-				  atkbd->force_release_mask);
+		for (i = 0; keys[i] != -1U; i++)
+			__set_bit(keys[i], atkbd->force_release_mask);
 }
  
 /*
+ * Most special keys (Fn+F?) on Dell laptops do not generate release
+ * events so we have to do it ourselves.
+ */
+static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
+	0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
+};
+
+/*
  * Perform fixup for HP system that doesn't generate release
  * for its video switch
  */
-static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
-{
-	static const unsigned int forced_release_keys[] = {
-		0x94,
-	};
-	int i;
+static unsigned int atkbd_hp_forced_release_keys[] = {
+	0x94, -1U
+};
  
-	if (atkbd->set == 2)
-		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-			__set_bit(forced_release_keys[i],
-					atkbd->force_release_mask);
-}
-
 /*
  * Inventec system with broken key release on volume keys
  */
-static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
-{
-	const unsigned int forced_release_keys[] = {
-		0xae, 0xb0,
-	};
-	int i;
+static unsigned int atkbd_inventec_forced_release_keys[] = {
+	0xae, 0xb0, -1U
+};
  
-	if (atkbd->set == 2)
-		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-			__set_bit(forced_release_keys[i],
-				  atkbd->force_release_mask);
-}
-
 /*
  * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
  * for its volume buttons
  */
-static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd)
-{
-	const unsigned int forced_release_keys[] = {
-		0xae, 0xb0,
-	};
-	int i;
+static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
+	0xae, 0xb0, -1U
+};
  
-	if (atkbd->set == 2)
-		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-			__set_bit(forced_release_keys[i],
-					atkbd->force_release_mask);
-}
-
 /*
  * Samsung NC10 with Fn+F? key release not working
  */
-static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd)
-{
-	const unsigned int forced_release_keys[] = {
-		0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
-	};
-	int i;
+static unsigned int atkbd_samsung_forced_release_keys[] = {
+	0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
+};
  
-	if (atkbd->set == 2)
-		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-			__set_bit(forced_release_keys[i],
-				  atkbd->force_release_mask);
-}
+/*
+ * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
+ * do not generate release events so we have to do it ourselves.
+ */
+static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
+	0xb0, 0xae, -1U
+};
  
 /*
  * atkbd_set_keycode_table() initializes keyboard's keycode table
@@ -967,7 +945,7 @@
  * Perform additional fixups
  */
 	if (atkbd_platform_fixup)
-		atkbd_platform_fixup(atkbd);
+		atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
 }
  
 /*
  
@@ -1492,9 +1470,11 @@
 	return sprintf(buf, "%lu\n", atkbd->err_count);
 }
  
-static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
+static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
 {
-	atkbd_platform_fixup = id->driver_data;
+	atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
+	atkbd_platform_fixup_data = id->driver_data;
+
 	return 0;
 }
  
@@ -1505,8 +1485,8 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 			DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_dell_laptop_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_dell_laptop_forced_release_keys,
 	},
 	{
 		.ident = "Dell Laptop",
@@ -1514,8 +1494,8 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
 			DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_dell_laptop_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_dell_laptop_forced_release_keys,
 	},
 	{
 		.ident = "HP 2133",
@@ -1523,8 +1503,8 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_hp_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_hp_forced_release_keys,
 	},
 	{
 		.ident = "HP Pavilion ZV6100",
@@ -1532,8 +1512,8 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_hp_zv6100_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_hp_zv6100_forced_release_keys,
 	},
 	{
 		.ident = "Inventec Symphony",
@@ -1541,8 +1521,8 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_inventec_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_inventec_forced_release_keys,
 	},
 	{
 		.ident = "Samsung NC10",
@@ -1550,8 +1530,17 @@
 			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
 		},
-		.callback = atkbd_setup_fixup,
-		.driver_data = atkbd_samsung_keymap_fixup,
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_samsung_forced_release_keys,
+	},
+	{
+		.ident = "Fujitsu Amilo PA 1510",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
+		},
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_amilo_pa1510_forced_release_keys,
 	},
 	{ }
 };
@@ -211,8 +211,8 @@
  
 	if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
 	    !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
-		printk(KERN_ERR DRV_NAME
-			": Invalid Debounce/Columdrive Time from pdata\n");
+		printk(KERN_WARNING DRV_NAME
+			": Invalid Debounce/Columndrive Time in platform data\n");
 		bfin_write_KPAD_MSEL(0xFF0);	/* Default MSEL	*/
 	} else {
 		bfin_write_KPAD_MSEL(
@@ -198,45 +198,28 @@
 }
  
  
-/* initialise HIL */
-static int __init
-hil_keyb_init(void)
+/* initialize HIL */
+static int __devinit hil_keyb_init(void)
 {
 	unsigned char c;
 	unsigned int i, kbid;
 	wait_queue_head_t hil_wait;
 	int err;
  
-	if (hil_dev.dev) {
+	if (hil_dev.dev)
 		return -ENODEV; /* already initialized */
-	}
  
+	init_waitqueue_head(&hil_wait);
 	spin_lock_init(&hil_dev.lock);
+
 	hil_dev.dev = input_allocate_device();
 	if (!hil_dev.dev)
 		return -ENOMEM;
  
-#if defined(CONFIG_HP300)
-	if (!MACH_IS_HP300) {
-		err = -ENODEV;
-		goto err1;
-	}
-	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
-		printk(KERN_ERR "HIL: hardware register was not found\n");
-		err = -ENODEV;
-		goto err1;
-	}
-	if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
-		printk(KERN_ERR "HIL: IOPORT region already used\n");
-		err = -EIO;
-		goto err1;
-	}
-#endif
-
 	err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
 	if (err) {
 		printk(KERN_ERR "HIL: Can't get IRQ\n");
-		goto err2;
+		goto err1;
 	}
  
 	/* Turn on interrupts */
  
@@ -246,11 +229,9 @@
 	hil_dev.valid = 0;	/* clear any pending data */
 	hil_do(HIL_READKBDSADR, NULL, 0);
  
-	init_waitqueue_head(&hil_wait);
-	wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
-	if (!hil_dev.valid) {
+	wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
+	if (!hil_dev.valid)
 		printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
-	}
  
 	c = hil_dev.c;
 	hil_dev.valid = 0;
@@ -268,7 +249,7 @@
  
 	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
 		if (hphilkeyb_keycode[i] != KEY_RESERVED)
-			set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+			__set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
  
 	hil_dev.dev->evbit[0]	= BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
 	hil_dev.dev->ledbit[0]	= BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
  
  
  
  
  
  
  
  
  
  
@@ -287,34 +268,45 @@
 	err = input_register_device(hil_dev.dev);
 	if (err) {
 		printk(KERN_ERR "HIL: Can't register device\n");
-		goto err3;
+		goto err2;
 	}
+
 	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
 	       hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
  
 	return 0;
  
-err3:
+err2:
 	hil_do(HIL_INTOFF, NULL, 0);
-	disable_irq(HIL_IRQ);
 	free_irq(HIL_IRQ, hil_dev.dev_id);
-err2:
-#if defined(CONFIG_HP300)
-	release_region(HILBASE + HIL_DATA, 2);
 err1:
-#endif
 	input_free_device(hil_dev.dev);
 	hil_dev.dev = NULL;
 	return err;
 }
  
+static void __devexit hil_keyb_exit(void)
+{
+	if (HIL_IRQ)
+		free_irq(HIL_IRQ, hil_dev.dev_id);
  
+	/* Turn off interrupts */
+	hil_do(HIL_INTOFF, NULL, 0);
+
+	input_unregister_device(hil_dev.dev);
+	hil_dev.dev = NULL;
+}
+
 #if defined(CONFIG_PARISC)
-static int __init
-hil_init_chip(struct parisc_device *dev)
+static int __devinit hil_probe_chip(struct parisc_device *dev)
 {
+	/* Only allow one HIL keyboard */
+	if (hil_dev.dev)
+		return -ENODEV;
+
 	if (!dev->irq) {
-		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
+		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
+			(void *)dev->hpa.start);
 		return -ENODEV;
 	}
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
@@ -327,51 +319,79 @@
 	return hil_keyb_init();
 }
  
+static int __devexit hil_remove_chip(struct parisc_device *dev)
+{
+	hil_keyb_exit();
+
+	return 0;
+}
+
 static struct parisc_device_id hil_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
 	{ 0, }
 };
  
+#if 0
+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
 MODULE_DEVICE_TABLE(parisc, hil_tbl);
+#endif
  
 static struct parisc_driver hil_driver = {
-	.name =		"hil",
-	.id_table =	hil_tbl,
-	.probe =	hil_init_chip,
+	.name		= "hil",
+	.id_table	= hil_tbl,
+	.probe		= hil_probe_chip,
+	.remove		= __devexit_p(hil_remove_chip),
 };
-#endif /* CONFIG_PARISC */
  
-
 static int __init hil_init(void)
 {
-#if defined(CONFIG_PARISC)
 	return register_parisc_driver(&hil_driver);
-#else
-	return hil_keyb_init();
-#endif
 }
  
-
 static void __exit hil_exit(void)
 {
-	if (HIL_IRQ) {
-		disable_irq(HIL_IRQ);
-		free_irq(HIL_IRQ, hil_dev.dev_id);
+	unregister_parisc_driver(&hil_driver);
+}
+
+#else /* !CONFIG_PARISC */
+
+static int __init hil_init(void)
+{
+	int error;
+
+	/* Only allow one HIL keyboard */
+	if (hil_dev.dev)
+		return -EBUSY;
+
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+
+	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+		printk(KERN_ERR "HIL: hardware register was not found\n");
+		return -ENODEV;
 	}
  
-	/* Turn off interrupts */
-	hil_do(HIL_INTOFF, NULL, 0);
+	if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+		printk(KERN_ERR "HIL: IOPORT region already used\n");
+		return -EIO;
+	}
  
-	input_unregister_device(hil_dev.dev);
+	error = hil_keyb_init();
+	if (error) {
+		release_region(HILBASE + HIL_DATA, 2);
+		return error;
+	}
  
-	hil_dev.dev = NULL;
+	return 0;
+}
  
-#if defined(CONFIG_PARISC)
-	unregister_parisc_driver(&hil_driver);
-#else
-	release_region(HILBASE+HIL_DATA, 2);
-#endif
+static void __exit hil_exit(void)
+{
+	hil_keyb_exit();
+	release_region(HILBASE + HIL_DATA, 2);
 }
+
+#endif /* CONFIG_PARISC */
  
 module_init(hil_init);
 module_exit(hil_exit);
@@ -227,5 +227,28 @@
 	 Say Y to include support for delivering  PMU events via  input
 	 layer on NXP PCF50633.
  
+config INPUT_GPIO_ROTARY_ENCODER
+	tristate "Rotary encoders connected to GPIO pins"
+	depends on GPIOLIB && GENERIC_GPIO
+	help
+	  Say Y here to add support for rotary encoders connected to GPIO lines.
+	  Check file:Documentation/incput/rotary_encoder.txt for more
+	  information.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rotary_encoder.
+
+config INPUT_RB532_BUTTON
+	tristate "Mikrotik Routerboard 532 button interface"
+	depends on MIKROTIK_RB532
+	depends on GPIOLIB && GENERIC_GPIO
+	select INPUT_POLLDEV
+	help
+	  Say Y here if you want support for the S1 button built into
+	  Mikrotik's Routerboard 532.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rb532_button.
+
 endif
@@ -4,22 +4,24 @@
  
 # Each configuration option enables a list of files.
  
-obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
-obj-$(CONFIG_INPUT_PCSPKR)		+= pcspkr.o
-obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
-obj-$(CONFIG_INPUT_IXP4XX_BEEPER)	+= ixp4xx-beeper.o
-obj-$(CONFIG_INPUT_COBALT_BTNS)		+= cobalt_btns.o
-obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
-obj-$(CONFIG_INPUT_ATLAS_BTNS)		+= atlas_btns.o
+obj-$(CONFIG_INPUT_APANEL)		+= apanel.o
 obj-$(CONFIG_INPUT_ATI_REMOTE)		+= ati_remote.o
 obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o
-obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
-obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
-obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
+obj-$(CONFIG_INPUT_ATLAS_BTNS)		+= atlas_btns.o
 obj-$(CONFIG_INPUT_CM109)		+= cm109.o
+obj-$(CONFIG_INPUT_COBALT_BTNS)		+= cobalt_btns.o
 obj-$(CONFIG_HP_SDC_RTC)		+= hp_sdc_rtc.o
-obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
-obj-$(CONFIG_INPUT_APANEL)		+= apanel.o
-obj-$(CONFIG_INPUT_SGI_BTNS)		+= sgi_btns.o
+obj-$(CONFIG_INPUT_IXP4XX_BEEPER)	+= ixp4xx-beeper.o
+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
+obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
 obj-$(CONFIG_INPUT_PCF50633_PMU)	+= pcf50633-input.o
+obj-$(CONFIG_INPUT_PCSPKR)		+= pcspkr.o
+obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
+obj-$(CONFIG_INPUT_RB532_BUTTON)	+= rb532_button.o
+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER)	+= rotary_encoder.o
+obj-$(CONFIG_INPUT_SGI_BTNS)		+= sgi_btns.o
+obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
+obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
+obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
+obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
@@ -31,12 +31,73 @@
  * newly configured "channel".
  */
  
-static unsigned int channel_mask = 0xFFFF;
-module_param(channel_mask, uint, 0644);
+enum {
+	ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
+	ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
+};
+
+static int ati_remote2_set_mask(const char *val,
+				struct kernel_param *kp, unsigned int max)
+{
+	unsigned long mask;
+	int ret;
+
+	if (!val)
+		return -EINVAL;
+
+	ret = strict_strtoul(val, 0, &mask);
+	if (ret)
+		return ret;
+
+	if (mask & ~max)
+		return -EINVAL;
+
+	*(unsigned int *)kp->arg = mask;
+
+	return 0;
+}
+
+static int ati_remote2_set_channel_mask(const char *val,
+					struct kernel_param *kp)
+{
+	pr_debug("%s()\n", __func__);
+
+	return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
+}
+
+static int ati_remote2_get_channel_mask(char *buffer, struct kernel_param *kp)
+{
+	pr_debug("%s()\n", __func__);
+
+	return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
+}
+
+static int ati_remote2_set_mode_mask(const char *val, struct kernel_param *kp)
+{
+	pr_debug("%s()\n", __func__);
+
+	return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
+}
+
+static int ati_remote2_get_mode_mask(char *buffer, struct kernel_param *kp)
+{
+	pr_debug("%s()\n", __func__);
+
+	return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
+}
+
+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_channel_mask ati_remote2_set_channel_mask
+#define param_get_channel_mask ati_remote2_get_channel_mask
+module_param(channel_mask, channel_mask, 0644);
 MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
  
-static unsigned int mode_mask = 0x1F;
-module_param(mode_mask, uint, 0644);
+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_mode_mask ati_remote2_set_mode_mask
+#define param_get_mode_mask ati_remote2_get_mode_mask
+module_param(mode_mask, mode_mask, 0644);
 MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
  
 static struct usb_device_id ati_remote2_id_table[] = {
  
@@ -133,12 +194,18 @@
 	u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
  
 	unsigned int flags;
+
+	unsigned int channel_mask;
+	unsigned int mode_mask;
 };
  
 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
 static void ati_remote2_disconnect(struct usb_interface *interface);
 static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
 static int ati_remote2_resume(struct usb_interface *interface);
+static int ati_remote2_reset_resume(struct usb_interface *interface);
+static int ati_remote2_pre_reset(struct usb_interface *interface);
+static int ati_remote2_post_reset(struct usb_interface *interface);
  
 static struct usb_driver ati_remote2_driver = {
 	.name       = "ati_remote2",
@@ -147,6 +214,9 @@
 	.id_table   = ati_remote2_id_table,
 	.suspend    = ati_remote2_suspend,
 	.resume     = ati_remote2_resume,
+	.reset_resume = ati_remote2_reset_resume,
+	.pre_reset  = ati_remote2_pre_reset,
+	.post_reset = ati_remote2_post_reset,
 	.supports_autosuspend = 1,
 };
  
@@ -238,7 +308,7 @@
  
 	channel = data[0] >> 4;
  
-	if (!((1 << channel) & channel_mask))
+	if (!((1 << channel) & ar2->channel_mask))
 		return;
  
 	mode = data[0] & 0x0F;
@@ -250,7 +320,7 @@
 		return;
 	}
  
-	if (!((1 << mode) & mode_mask))
+	if (!((1 << mode) & ar2->mode_mask))
 		return;
  
 	input_event(idev, EV_REL, REL_X, (s8) data[1]);
@@ -277,7 +347,7 @@
  
 	channel = data[0] >> 4;
  
-	if (!((1 << channel) & channel_mask))
+	if (!((1 << channel) & ar2->channel_mask))
 		return;
  
 	mode = data[0] & 0x0F;
@@ -305,7 +375,7 @@
 			ar2->mode = mode;
 	}
  
-	if (!((1 << mode) & mode_mask))
+	if (!((1 << mode) & ar2->mode_mask))
 		return;
  
 	index = ati_remote2_lookup(hw_code);
@@ -410,7 +480,7 @@
 	int index, mode;
  
 	mode = scancode >> 8;
-	if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+	if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
 		return -EINVAL;
  
 	index = ati_remote2_lookup(scancode & 0xFF);
@@ -427,7 +497,7 @@
 	int index, mode, old_keycode;
  
 	mode = scancode >> 8;
-	if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+	if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
 		return -EINVAL;
  
 	index = ati_remote2_lookup(scancode & 0xFF);
@@ -550,7 +620,7 @@
 	}
 }
  
-static int ati_remote2_setup(struct ati_remote2 *ar2)
+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
 {
 	int r, i, channel;
  
@@ -565,8 +635,8 @@
  
 	channel = 0;
 	for (i = 0; i < 16; i++) {
-		if ((1 << i) & channel_mask) {
-			if (!(~(1 << i) & 0xFFFF & channel_mask))
+		if ((1 << i) & ch_mask) {
+			if (!(~(1 << i) & ch_mask))
 				channel = i + 1;
 			break;
 		}
@@ -585,6 +655,99 @@
 	return 0;
 }
  
+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
+					     struct device_attribute *attr,
+					     char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+	return sprintf(buf, "0x%04x\n", ar2->channel_mask);
+}
+
+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
+					      struct device_attribute *attr,
+					      const char *buf, size_t count)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+	unsigned long mask;
+	int r;
+
+	if (strict_strtoul(buf, 0, &mask))
+		return -EINVAL;
+
+	if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
+		return -EINVAL;
+
+	r = usb_autopm_get_interface(ar2->intf[0]);
+	if (r) {
+		dev_err(&ar2->intf[0]->dev,
+			"%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+		return r;
+	}
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
+		ar2->channel_mask = mask;
+
+	mutex_unlock(&ati_remote2_mutex);
+
+	usb_autopm_put_interface(ar2->intf[0]);
+
+	return count;
+}
+
+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+	return sprintf(buf, "0x%02x\n", ar2->mode_mask);
+}
+
+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
+					   struct device_attribute *attr,
+					   const char *buf, size_t count)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+	unsigned long mask;
+
+	if (strict_strtoul(buf, 0, &mask))
+		return -EINVAL;
+
+	if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
+		return -EINVAL;
+
+	ar2->mode_mask = mask;
+
+	return count;
+}
+
+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
+		   ati_remote2_store_channel_mask);
+
+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
+		   ati_remote2_store_mode_mask);
+
+static struct attribute *ati_remote2_attrs[] = {
+	&dev_attr_channel_mask.attr,
+	&dev_attr_mode_mask.attr,
+	NULL,
+};
+
+static struct attribute_group ati_remote2_attr_group = {
+	.attrs = ati_remote2_attrs,
+};
+
 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
@@ -615,7 +778,10 @@
 	if (r)
 		goto fail2;
  
-	r = ati_remote2_setup(ar2);
+	ar2->channel_mask = channel_mask;
+	ar2->mode_mask = mode_mask;
+
+	r = ati_remote2_setup(ar2, ar2->channel_mask);
 	if (r)
 		goto fail2;
  
  
  
  
@@ -624,19 +790,24 @@
  
 	strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
  
-	r = ati_remote2_input_init(ar2);
+	r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
 	if (r)
 		goto fail2;
  
+	r = ati_remote2_input_init(ar2);
+	if (r)
+		goto fail3;
+
 	usb_set_intfdata(interface, ar2);
  
 	interface->needs_remote_wakeup = 1;
  
 	return 0;
  
+ fail3:
+	sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
  fail2:
 	ati_remote2_urb_cleanup(ar2);
-
 	usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
  fail1:
 	kfree(ar2);
@@ -657,6 +828,8 @@
  
 	input_unregister_device(ar2->idev);
  
+	sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
+
 	ati_remote2_urb_cleanup(ar2);
  
 	usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
@@ -709,6 +882,78 @@
  
 	if (!r)
 		ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+	mutex_unlock(&ati_remote2_mutex);
+
+	return r;
+}
+
+static int ati_remote2_reset_resume(struct usb_interface *interface)
+{
+	struct ati_remote2 *ar2;
+	struct usb_host_interface *alt = interface->cur_altsetting;
+	int r = 0;
+
+	if (alt->desc.bInterfaceNumber)
+		return 0;
+
+	ar2 = usb_get_intfdata(interface);
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	mutex_lock(&ati_remote2_mutex);
+
+	r = ati_remote2_setup(ar2, ar2->channel_mask);
+	if (r)
+		goto out;
+
+	if (ar2->flags & ATI_REMOTE2_OPENED)
+		r = ati_remote2_submit_urbs(ar2);
+
+	if (!r)
+		ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ out:
+	mutex_unlock(&ati_remote2_mutex);
+
+	return r;
+}
+
+static int ati_remote2_pre_reset(struct usb_interface *interface)
+{
+	struct ati_remote2 *ar2;
+	struct usb_host_interface *alt = interface->cur_altsetting;
+
+	if (alt->desc.bInterfaceNumber)
+		return 0;
+
+	ar2 = usb_get_intfdata(interface);
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (ar2->flags == ATI_REMOTE2_OPENED)
+		ati_remote2_kill_urbs(ar2);
+
+	return 0;
+}
+
+static int ati_remote2_post_reset(struct usb_interface *interface)
+{
+	struct ati_remote2 *ar2;
+	struct usb_host_interface *alt = interface->cur_altsetting;
+	int r = 0;
+
+	if (alt->desc.bInterfaceNumber)
+		return 0;
+
+	ar2 = usb_get_intfdata(interface);
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	if (ar2->flags == ATI_REMOTE2_OPENED)
+		r = ati_remote2_submit_urbs(ar2);
  
 	mutex_unlock(&ati_remote2_mutex);
  
+/*
+ * Support for the S1 button on Routerboard 532
+ *
+ * Copyright (C) 2009  Phil Sutter <n0-1@freewrt.org>
+ */
+
+#include <linux/input-polldev.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-rc32434/gpio.h>
+#include <asm/mach-rc32434/rb.h>
+
+#define DRV_NAME "rb532-button"
+
+#define RB532_BTN_RATE 100 /* msec */
+#define RB532_BTN_KSYM BTN_0
+
+/* The S1 button state is provided by GPIO pin 1. But as this
+ * pin is also used for uart input as alternate function, the
+ * operational modes must be switched first:
+ * 1) disable uart using set_latch_u5()
+ * 2) turn off alternate function implicitly through
+ *    gpio_direction_input()
+ * 3) read the GPIO's current value
+ * 4) undo step 2 by enabling alternate function (in this
+ *    mode the GPIO direction is fixed, so no change needed)
+ * 5) turn on uart again
+ * The GPIO value occurs to be inverted, so pin high means
+ * button is not pressed.
+ */
+static bool rb532_button_pressed(void)
+{
+	int val;
+
+	set_latch_u5(0, LO_FOFF);
+	gpio_direction_input(GPIO_BTN_S1);
+
+	val = gpio_get_value(GPIO_BTN_S1);
+
+	rb532_gpio_set_func(GPIO_BTN_S1);
+	set_latch_u5(LO_FOFF, 0);
+
+	return !val;
+}
+
+static void rb532_button_poll(struct input_polled_dev *poll_dev)
+{
+	input_report_key(poll_dev->input, RB532_BTN_KSYM,
+			 rb532_button_pressed());
+	input_sync(poll_dev->input);
+}
+
+static int __devinit rb532_button_probe(struct platform_device *pdev)
+{
+	struct input_polled_dev *poll_dev;
+	int error;
+
+	poll_dev = input_allocate_polled_device();
+	if (!poll_dev)
+		return -ENOMEM;
+
+	poll_dev->poll = rb532_button_poll;
+	poll_dev->poll_interval = RB532_BTN_RATE;
+
+	poll_dev->input->name = "rb532 button";
+	poll_dev->input->phys = "rb532/button0";
+	poll_dev->input->id.bustype = BUS_HOST;
+	poll_dev->input->dev.parent = &pdev->dev;
+
+	dev_set_drvdata(&pdev->dev, poll_dev);
+
+	input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+
+	error = input_register_polled_device(poll_dev);
+	if (error) {
+		input_free_polled_device(poll_dev);
+		return error;
+	}
+
+	return 0;
+}
+
+static int __devexit rb532_button_remove(struct platform_device *pdev)
+{
+	struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
+
+	input_unregister_polled_device(poll_dev);
+	input_free_polled_device(poll_dev);
+	dev_set_drvdata(&pdev->dev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver rb532_button_driver = {
+	.probe = rb532_button_probe,
+	.remove = __devexit_p(rb532_button_remove),
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+	},
+};
+
+static int __init rb532_button_init(void)
+{
+	return platform_driver_register(&rb532_button_driver);
+}
+
+static void __exit rb532_button_exit(void)
+{
+	platform_driver_unregister(&rb532_button_driver);
+}
+
+module_init(rb532_button_init);
+module_exit(rb532_button_exit);
+
+MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
+MODULE_ALIAS("platform:" DRV_NAME);
+/*
+ * rotary_encoder.c
+ *
+ * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * state machine code inspired by code from Tim Ruetz
+ *
+ * A generic driver for rotary encoders connected to GPIO lines.
+ * See file:Documentation/input/rotary_encoder.txt for more information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/rotary_encoder.h>
+
+#define DRV_NAME "rotary-encoder"
+
+struct rotary_encoder {
+	unsigned int irq_a;
+	unsigned int irq_b;
+	unsigned int pos;
+	unsigned int armed;
+	unsigned int dir;
+	struct input_dev *input;
+	struct rotary_encoder_platform_data *pdata;
+};
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+	struct rotary_encoder *encoder = dev_id;
+	struct rotary_encoder_platform_data *pdata = encoder->pdata;
+	int a = !!gpio_get_value(pdata->gpio_a);
+	int b = !!gpio_get_value(pdata->gpio_b);
+	int state;
+
+	a ^= pdata->inverted_a;
+	b ^= pdata->inverted_b;
+	state = (a << 1) | b;
+
+	switch (state) {
+
+	case 0x0:
+		if (!encoder->armed)
+			break;
+
+		if (encoder->dir) {
+			/* turning counter-clockwise */
+			encoder->pos += pdata->steps;
+			encoder->pos--;
+			encoder->pos %= pdata->steps;
+		} else {
+			/* turning clockwise */
+			encoder->pos++;
+			encoder->pos %= pdata->steps;
+		}
+
+		input_report_abs(encoder->input, pdata->axis, encoder->pos);
+		input_sync(encoder->input);
+
+		encoder->armed = 0;
+		break;
+
+	case 0x1:
+	case 0x2:
+		if (encoder->armed)
+			encoder->dir = state - 1;
+		break;
+
+	case 0x3:
+		encoder->armed = 1;
+		break;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit rotary_encoder_probe(struct platform_device *pdev)
+{
+	struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+	struct rotary_encoder *encoder;
+	struct input_dev *input;
+	int err;
+
+	if (!pdata || !pdata->steps) {
+		dev_err(&pdev->dev, "invalid platform data\n");
+		return -ENOENT;
+	}
+
+	encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!encoder || !input) {
+		dev_err(&pdev->dev, "failed to allocate memory for device\n");
+		err = -ENOMEM;
+		goto exit_free_mem;
+	}
+
+	encoder->input = input;
+	encoder->pdata = pdata;
+	encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+	encoder->irq_b = gpio_to_irq(pdata->gpio_b);
+
+	/* create and register the input driver */
+	input->name = pdev->name;
+	input->id.bustype = BUS_HOST;
+	input->dev.parent = &pdev->dev;
+	input->evbit[0] = BIT_MASK(EV_ABS);
+	input_set_abs_params(encoder->input,
+			     pdata->axis, 0, pdata->steps, 0, 1);
+
+	err = input_register_device(input);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register input device\n");
+		goto exit_free_mem;
+	}
+
+	/* request the GPIOs */
+	err = gpio_request(pdata->gpio_a, DRV_NAME);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request GPIO %d\n",
+			pdata->gpio_a);
+		goto exit_unregister_input;
+	}
+
+	err = gpio_request(pdata->gpio_b, DRV_NAME);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request GPIO %d\n",
+			pdata->gpio_b);
+		goto exit_free_gpio_a;
+	}
+
+	/* request the IRQs */
+	err = request_irq(encoder->irq_a, &rotary_encoder_irq,
+			  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+			  DRV_NAME, encoder);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request IRQ %d\n",
+			encoder->irq_a);
+		goto exit_free_gpio_b;
+	}
+
+	err = request_irq(encoder->irq_b, &rotary_encoder_irq,
+			  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+			  DRV_NAME, encoder);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request IRQ %d\n",
+			encoder->irq_b);
+		goto exit_free_irq_a;
+	}
+
+	platform_set_drvdata(pdev, encoder);
+
+	return 0;
+
+exit_free_irq_a:
+	free_irq(encoder->irq_a, encoder);
+exit_free_gpio_b:
+	gpio_free(pdata->gpio_b);
+exit_free_gpio_a:
+	gpio_free(pdata->gpio_a);
+exit_unregister_input:
+	input_unregister_device(input);
+	input = NULL; /* so we don't try to free it */
+exit_free_mem:
+	input_free_device(input);
+	kfree(encoder);
+	return err;
+}
+
+static int __devexit rotary_encoder_remove(struct platform_device *pdev)
+{
+	struct rotary_encoder *encoder = platform_get_drvdata(pdev);
+	struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+
+	free_irq(encoder->irq_a, encoder);
+	free_irq(encoder->irq_b, encoder);
+	gpio_free(pdata->gpio_a);
+	gpio_free(pdata->gpio_b);
+	input_unregister_device(encoder->input);
+	platform_set_drvdata(pdev, NULL);
+	kfree(encoder);
+
+	return 0;
+}
+
+static struct platform_driver rotary_encoder_driver = {
+	.probe		= rotary_encoder_probe,
+	.remove		= __devexit_p(rotary_encoder_remove),
+	.driver		= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	}
+};
+
+static int __init rotary_encoder_init(void)
+{
+	return platform_driver_register(&rotary_encoder_driver);
+}
+
+static void __exit rotary_encoder_exit(void)
+{
+	platform_driver_unregister(&rotary_encoder_driver);
+}
+
+module_init(rotary_encoder_init);
+module_exit(rotary_encoder_exit);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION("GPIO rotary encoder driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_LICENSE("GPL v2");
@@ -292,5 +292,16 @@
 	help
 	  Say Y here to support PXA930 Trackball mouse.
  
+config MOUSE_MAPLE
+	tristate "Maple mouse (for the Dreamcast)"
+	depends on MAPLE
+	help
+	  This driver supports the Maple mouse on the SEGA Dreamcast.
+
+	  Most Dreamcast users, who have a mouse, will say Y here.
+
+	  To compile this driver as a module choose M here: the module will be
+	  called maplemouse.
+
 endif
@@ -6,18 +6,19 @@
  
 obj-$(CONFIG_MOUSE_AMIGA)		+= amimouse.o
 obj-$(CONFIG_MOUSE_APPLETOUCH)		+= appletouch.o
-obj-$(CONFIG_MOUSE_BCM5974)		+= bcm5974.o
 obj-$(CONFIG_MOUSE_ATARI)		+= atarimouse.o
-obj-$(CONFIG_MOUSE_RISCPC)		+= rpcmouse.o
+obj-$(CONFIG_MOUSE_BCM5974)		+= bcm5974.o
+obj-$(CONFIG_MOUSE_GPIO)		+= gpio_mouse.o
+obj-$(CONFIG_MOUSE_HIL)			+= hil_ptr.o
 obj-$(CONFIG_MOUSE_INPORT)		+= inport.o
 obj-$(CONFIG_MOUSE_LOGIBM)		+= logibm.o
+obj-$(CONFIG_MOUSE_MAPLE)		+= maplemouse.o
 obj-$(CONFIG_MOUSE_PC110PAD)		+= pc110pad.o
 obj-$(CONFIG_MOUSE_PS2)			+= psmouse.o
 obj-$(CONFIG_MOUSE_PXA930_TRKBALL)	+= pxa930_trkball.o
+obj-$(CONFIG_MOUSE_RISCPC)		+= rpcmouse.o
 obj-$(CONFIG_MOUSE_SERIAL)		+= sermouse.o
-obj-$(CONFIG_MOUSE_HIL)			+= hil_ptr.o
 obj-$(CONFIG_MOUSE_VSXXXAA)		+= vsxxxaa.o
-obj-$(CONFIG_MOUSE_GPIO)		+= gpio_mouse.o
  
 psmouse-objs := psmouse-base.o synaptics.o
  
@@ -472,7 +472,7 @@
 		return -EIO;
 	}
  
-	hgpk_dbg(psmouse, "ID: %02x %02x %02x", param[0], param[1], param[2]);
+	hgpk_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
  
 	/* HGPK signature: 0x67, 0x00, 0x<model> */
 	if (param[0] != 0x67 || param[1] != 0x00)
+/*
+ *	SEGA Dreamcast mouse driver
+ *	Based on drivers/usb/usbmouse.c
+ *
+ *	Copyright Yaegashi Takeshi, 2001
+ *	Adrian McMenamin, 2008
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
+MODULE_LICENSE("GPL");
+
+struct dc_mouse {
+	struct input_dev *dev;
+	struct maple_device *mdev;
+};
+
+static void dc_mouse_callback(struct mapleq *mq)
+{
+	int buttons, relx, rely, relz;
+	struct maple_device *mapledev = mq->dev;
+	struct dc_mouse *mse = maple_get_drvdata(mapledev);
+	struct input_dev *dev = mse->dev;
+	unsigned char *res = mq->recvbuf;
+
+	buttons = ~res[8];
+	relx = *(unsigned short *)(res + 12) - 512;
+	rely = *(unsigned short *)(res + 14) - 512;
+	relz = *(unsigned short *)(res + 16) - 512;
+
+	input_report_key(dev, BTN_LEFT,   buttons & 4);
+	input_report_key(dev, BTN_MIDDLE, buttons & 9);
+	input_report_key(dev, BTN_RIGHT,  buttons & 2);
+	input_report_rel(dev, REL_X,      relx);
+	input_report_rel(dev, REL_Y,      rely);
+	input_report_rel(dev, REL_WHEEL,  relz);
+	input_sync(dev);
+}
+
+static int dc_mouse_open(struct input_dev *dev)
+{
+	struct dc_mouse *mse = dev->dev.platform_data;
+
+	maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
+		MAPLE_FUNC_MOUSE);
+
+	return 0;
+}
+
+static void dc_mouse_close(struct input_dev *dev)
+{
+	struct dc_mouse *mse = dev->dev.platform_data;
+
+	maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
+		MAPLE_FUNC_MOUSE);
+}
+
+
+static int __devinit probe_maple_mouse(struct device *dev)
+{
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct maple_driver *mdrv = to_maple_driver(dev->driver);
+	struct input_dev *input_dev;
+	struct dc_mouse *mse;
+	int error;
+
+	mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
+	input_dev = input_allocate_device();
+
+	if (!mse || !input_dev) {
+		error = -ENOMEM;
+		goto fail;
+	}
+
+	mse->dev = input_dev;
+	mse->mdev = mdev;
+
+	input_set_drvdata(input_dev, mse);
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+	input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+		BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+	input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
+		BIT_MASK(REL_WHEEL);
+	input_dev->name = mdev->product_name;
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->open = dc_mouse_open;
+	input_dev->close = dc_mouse_close;
+
+	mdev->driver = mdrv;
+	maple_set_drvdata(mdev, mse);
+
+	error =	input_register_device(input_dev);
+	if (error)
+		goto fail;
+
+	return 0;
+
+fail:
+	input_free_device(input_dev);
+	maple_set_drvdata(mdev, NULL);
+	kfree(mse);
+	mdev->driver = NULL;
+	return error;
+}
+
+static int __devexit remove_maple_mouse(struct device *dev)
+{
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct dc_mouse *mse = maple_get_drvdata(mdev);
+
+	mdev->callback = NULL;
+	input_unregister_device(mse->dev);
+	maple_set_drvdata(mdev, NULL);
+	kfree(mse);
+
+	return 0;
+}
+
+static struct maple_driver dc_mouse_driver = {
+	.function =	MAPLE_FUNC_MOUSE,
+	.drv = {
+		.name = "Dreamcast_mouse",
+		.probe = probe_maple_mouse,
+		.remove = __devexit_p(remove_maple_mouse),
+	},
+};
+
+static int __init dc_mouse_init(void)
+{
+	return maple_driver_register(&dc_mouse_driver);
+}
+
+static void __exit dc_mouse_exit(void)
+{
+	maple_driver_unregister(&dc_mouse_driver);
+}
+
+module_init(dc_mouse_init);
+module_exit(dc_mouse_exit);
@@ -111,11 +111,8 @@
 	struct pci_dev *dev;
 	int err;
  
-	dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
-	if (dev) {
-		pci_dev_put(dev);
+	if (!no_pci_devices())
 		return -ENODEV;
-	}
  
 	if (!request_region(pc110pad_io, 4, "pc110pad")) {
 		printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
@@ -151,6 +151,14 @@
 			DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
 		},
 	},
+	{
+		.ident = "HP DV9700",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
+		},
+	},
 	{ }
 };
  
@@ -29,6 +29,51 @@
 	  To compile this driver as a module, choose M here: the
 	  module will be called ads7846.
  
+config TOUCHSCREEN_AD7877
+	tristate "AD7877 based touchscreens"
+	depends on SPI_MASTER
+	help
+	  Say Y here if you have a touchscreen interface using the
+	  AD7877 controller, and your board-specific initialization
+	  code includes that in its table of SPI devices.
+
+	  If unsure, say N (but it's safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad7877.
+
+config TOUCHSCREEN_AD7879_I2C
+	tristate "AD7879 based touchscreens: AD7879-1 I2C Interface"
+	depends on I2C
+	select TOUCHSCREEN_AD7879
+	help
+	  Say Y here if you have a touchscreen interface using the
+	  AD7879-1 controller, and your board-specific initialization
+	  code includes that in its table of I2C devices.
+
+	  If unsure, say N (but it's safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad7879.
+
+config TOUCHSCREEN_AD7879_SPI
+	tristate "AD7879 based touchscreens: AD7879 SPI Interface"
+	depends on SPI_MASTER && TOUCHSCREEN_AD7879_I2C = n
+	select TOUCHSCREEN_AD7879
+	help
+	  Say Y here if you have a touchscreen interface using the
+	  AD7879 controller, and your board-specific initialization
+	  code includes that in its table of SPI devices.
+
+	  If unsure, say N (but it's safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad7879.
+
+config TOUCHSCREEN_AD7879
+	tristate
+	default n
+
 config TOUCHSCREEN_BITSY
 	tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
 	depends on SA1100_BITSY
@@ -307,6 +352,19 @@
  
 	  To compile this driver as a module, choose M here: the
 	  module will be called mainstone-wm97xx.
+
+config TOUCHSCREEN_WM97XX_ZYLONITE
+	tristate "Zylonite accelerated touch"
+	depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
+	select TOUCHSCREEN_WM9713
+	help
+	  Say Y here for support for streaming mode with the touchscreen
+	  on Zylonite systems.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called zylonite-wm97xx.
  
 config TOUCHSCREEN_USB_COMPOSITE
 	tristate "USB Touchscreen Driver"
@@ -6,6 +6,8 @@
  
 wm97xx-ts-y := wm97xx-core.o
  
+obj-$(CONFIG_TOUCHSCREEN_AD7877)	+= ad7877.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879)	+= ad7879.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)	+= ads7846.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC)	+= atmel_tsadcc.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)		+= h3600_ts_input.o
@@ -34,4 +36,5 @@
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712)	+= wm9712.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713)	+= wm9713.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)	+= mainstone-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)	+= zylonite-wm97xx.o
+/*
+ * Copyright (C) 2006-2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description:	AD7877 based touchscreen, sensor (ADCs), DAC and GPIO driver
+ * Based on:	ads7846.c
+ *
+ * Bugs:        Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ *  - corgi_ts.c
+ *	Copyright (C) 2004-2005 Richard Purdie
+ *  - omap_ts.[hc], ads7846.h, ts_osk.c
+ *	Copyright (C) 2002 MontaVista Software
+ *	Copyright (C) 2004 Texas Instruments
+ *	Copyright (C) 2005 Dirk Behme
+ */
+
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ad7877.h>
+#include <asm/irq.h>
+
+#define	TS_PEN_UP_TIMEOUT	msecs_to_jiffies(50)
+
+#define MAX_SPI_FREQ_HZ			20000000
+#define	MAX_12BIT			((1<<12)-1)
+
+#define AD7877_REG_ZEROS			0
+#define AD7877_REG_CTRL1			1
+#define AD7877_REG_CTRL2			2
+#define AD7877_REG_ALERT			3
+#define AD7877_REG_AUX1HIGH			4
+#define AD7877_REG_AUX1LOW			5
+#define AD7877_REG_BAT1HIGH			6
+#define AD7877_REG_BAT1LOW			7
+#define AD7877_REG_BAT2HIGH			8
+#define AD7877_REG_BAT2LOW			9
+#define AD7877_REG_TEMP1HIGH			10
+#define AD7877_REG_TEMP1LOW			11
+#define AD7877_REG_SEQ0				12
+#define AD7877_REG_SEQ1				13
+#define AD7877_REG_DAC				14
+#define AD7877_REG_NONE1			15
+#define AD7877_REG_EXTWRITE			15
+#define AD7877_REG_XPLUS			16
+#define AD7877_REG_YPLUS			17
+#define AD7877_REG_Z2				18
+#define AD7877_REG_aux1				19
+#define AD7877_REG_aux2				20
+#define AD7877_REG_aux3				21
+#define AD7877_REG_bat1				22
+#define AD7877_REG_bat2				23
+#define AD7877_REG_temp1			24
+#define AD7877_REG_temp2			25
+#define AD7877_REG_Z1				26
+#define AD7877_REG_GPIOCTRL1			27
+#define AD7877_REG_GPIOCTRL2			28
+#define AD7877_REG_GPIODATA			29
+#define AD7877_REG_NONE2			30
+#define AD7877_REG_NONE3			31
+
+#define AD7877_SEQ_YPLUS_BIT			(1<<11)
+#define AD7877_SEQ_XPLUS_BIT			(1<<10)
+#define AD7877_SEQ_Z2_BIT			(1<<9)
+#define AD7877_SEQ_AUX1_BIT			(1<<8)
+#define AD7877_SEQ_AUX2_BIT			(1<<7)
+#define AD7877_SEQ_AUX3_BIT			(1<<6)
+#define AD7877_SEQ_BAT1_BIT			(1<<5)
+#define AD7877_SEQ_BAT2_BIT			(1<<4)
+#define AD7877_SEQ_TEMP1_BIT			(1<<3)
+#define AD7877_SEQ_TEMP2_BIT			(1<<2)
+#define AD7877_SEQ_Z1_BIT			(1<<1)
+
+enum {
+	AD7877_SEQ_YPOS  = 0,
+	AD7877_SEQ_XPOS  = 1,
+	AD7877_SEQ_Z2    = 2,
+	AD7877_SEQ_AUX1  = 3,
+	AD7877_SEQ_AUX2  = 4,
+	AD7877_SEQ_AUX3  = 5,
+	AD7877_SEQ_BAT1  = 6,
+	AD7877_SEQ_BAT2  = 7,
+	AD7877_SEQ_TEMP1 = 8,
+	AD7877_SEQ_TEMP2 = 9,
+	AD7877_SEQ_Z1    = 10,
+	AD7877_NR_SENSE  = 11,
+};
+
+/* DAC Register Default RANGE 0 to Vcc, Volatge Mode, DAC On */
+#define AD7877_DAC_CONF			0x1
+
+/* If gpio3 is set AUX3/GPIO3 acts as GPIO Output */
+#define AD7877_EXTW_GPIO_3_CONF		0x1C4
+#define AD7877_EXTW_GPIO_DATA		0x200
+
+/* Control REG 2 */
+#define AD7877_TMR(x)			((x & 0x3) << 0)
+#define AD7877_REF(x)			((x & 0x1) << 2)
+#define AD7877_POL(x)			((x & 0x1) << 3)
+#define AD7877_FCD(x)			((x & 0x3) << 4)
+#define AD7877_PM(x)			((x & 0x3) << 6)
+#define AD7877_ACQ(x)			((x & 0x3) << 8)
+#define AD7877_AVG(x)			((x & 0x3) << 10)
+
+/* Control REG 1 */
+#define	AD7877_SER			(1 << 11)	/* non-differential */
+#define	AD7877_DFR			(0 << 11)	/* differential */
+
+#define AD7877_MODE_NOC  (0)	/* Do not convert */
+#define AD7877_MODE_SCC  (1)	/* Single channel conversion */
+#define AD7877_MODE_SEQ0 (2)	/* Sequence 0 in Slave Mode */
+#define AD7877_MODE_SEQ1 (3)	/* Sequence 1 in Master Mode */
+
+#define AD7877_CHANADD(x)		((x&0xF)<<7)
+#define AD7877_READADD(x)		((x)<<2)
+#define AD7877_WRITEADD(x)		((x)<<12)
+
+#define AD7877_READ_CHAN(x) (AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_SER | \
+		AD7877_MODE_SCC | AD7877_CHANADD(AD7877_REG_ ## x) | \
+		AD7877_READADD(AD7877_REG_ ## x))
+
+#define AD7877_MM_SEQUENCE (AD7877_SEQ_YPLUS_BIT | AD7877_SEQ_XPLUS_BIT | \
+		AD7877_SEQ_Z2_BIT | AD7877_SEQ_Z1_BIT)
+
+/*
+ * Non-touchscreen sensors only use single-ended conversions.
+ */
+
+struct ser_req {
+	u16			reset;
+	u16			ref_on;
+	u16			command;
+	u16			sample;
+	struct spi_message	msg;
+	struct spi_transfer	xfer[6];
+};
+
+struct ad7877 {
+	struct input_dev	*input;
+	char			phys[32];
+
+	struct spi_device	*spi;
+	u16			model;
+	u16			vref_delay_usecs;
+	u16			x_plate_ohms;
+	u16			pressure_max;
+
+	u16			cmd_crtl1;
+	u16			cmd_crtl2;
+	u16			cmd_dummy;
+	u16			dac;
+
+	u8			stopacq_polarity;
+	u8			first_conversion_delay;
+	u8			acquisition_time;
+	u8			averaging;
+	u8			pen_down_acc_interval;
+
+	u16			conversion_data[AD7877_NR_SENSE];
+
+	struct spi_transfer	xfer[AD7877_NR_SENSE + 2];
+	struct spi_message	msg;
+
+	struct mutex		mutex;
+	unsigned		disabled:1;	/* P: mutex */
+	unsigned		gpio3:1;	/* P: mutex */
+	unsigned		gpio4:1;	/* P: mutex */
+
+	spinlock_t		lock;
+	struct timer_list	timer;		/* P: lock */
+	unsigned		pending:1;	/* P: lock */
+};
+
+static int gpio3;
+module_param(gpio3, int, 0);
+MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
+
+/*
+ * ad7877_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done using spi_async() in the interrupt handler.
+ */
+
+static int ad7877_read(struct spi_device *spi, u16 reg)
+{
+	struct ser_req *req;
+	int status, ret;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	spi_message_init(&req->msg);
+
+	req->command = (u16) (AD7877_WRITEADD(AD7877_REG_CTRL1) |
+			AD7877_READADD(reg));
+	req->xfer[0].tx_buf = &req->command;
+	req->xfer[0].len = 2;
+
+	req->xfer[1].rx_buf = &req->sample;
+	req->xfer[1].len = 2;
+
+	spi_message_add_tail(&req->xfer[0], &req->msg);
+	spi_message_add_tail(&req->xfer[1], &req->msg);
+
+	status = spi_sync(spi, &req->msg);
+	ret = status ? : req->sample;
+
+	kfree(req);
+
+	return ret;
+}
+
+static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)
+{
+	struct ser_req *req;
+	int status;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	spi_message_init(&req->msg);
+
+	req->command = (u16) (AD7877_WRITEADD(reg) | (val & MAX_12BIT));
+	req->xfer[0].tx_buf = &req->command;
+	req->xfer[0].len = 2;
+
+	spi_message_add_tail(&req->xfer[0], &req->msg);
+
+	status = spi_sync(spi, &req->msg);
+
+	kfree(req);
+
+	return status;
+}
+
+static int ad7877_read_adc(struct spi_device *spi, unsigned command)
+{
+	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+	struct ser_req *req;
+	int status;
+	int sample;
+	int i;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	spi_message_init(&req->msg);
+
+	/* activate reference, so it has time to settle; */
+	req->ref_on = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+			 AD7877_POL(ts->stopacq_polarity) |
+			 AD7877_AVG(0) | AD7877_PM(2) | AD7877_TMR(0) |
+			 AD7877_ACQ(ts->acquisition_time) | AD7877_FCD(0);
+
+	req->reset = AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_MODE_NOC;
+
+	req->command = (u16) command;
+
+	req->xfer[0].tx_buf = &req->reset;
+	req->xfer[0].len = 2;
+
+	req->xfer[1].tx_buf = &req->ref_on;
+	req->xfer[1].len = 2;
+	req->xfer[1].delay_usecs = ts->vref_delay_usecs;
+
+	req->xfer[2].tx_buf = &req->command;
+	req->xfer[2].len = 2;
+	req->xfer[2].delay_usecs = ts->vref_delay_usecs;
+
+	req->xfer[3].rx_buf = &req->sample;
+	req->xfer[3].len = 2;
+
+	req->xfer[4].tx_buf = &ts->cmd_crtl2;	/*REF OFF*/
+	req->xfer[4].len = 2;
+
+	req->xfer[5].tx_buf = &ts->cmd_crtl1;	/*DEFAULT*/
+	req->xfer[5].len = 2;
+
+	/* group all the transfers together, so we can't interfere with
+	 * reading touchscreen state; disable penirq while sampling
+	 */
+	for (i = 0; i < 6; i++)
+		spi_message_add_tail(&req->xfer[i], &req->msg);
+
+	status = spi_sync(spi, &req->msg);
+	sample = req->sample;
+
+	kfree(req);
+
+	return status ? : sample;
+}
+
+static void ad7877_rx(struct ad7877 *ts)
+{
+	struct input_dev *input_dev = ts->input;
+	unsigned Rt;
+	u16 x, y, z1, z2;
+
+	x = ts->conversion_data[AD7877_SEQ_XPOS] & MAX_12BIT;
+	y = ts->conversion_data[AD7877_SEQ_YPOS] & MAX_12BIT;
+	z1 = ts->conversion_data[AD7877_SEQ_Z1] & MAX_12BIT;
+	z2 = ts->conversion_data[AD7877_SEQ_Z2] & MAX_12BIT;
+
+	/*
+	 * The samples processed here are already preprocessed by the AD7877.
+	 * The preprocessing function consists of an averaging filter.
+	 * The combination of 'first conversion delay' and averaging provides a robust solution,
+	 * discarding the spurious noise in the signal and keeping only the data of interest.
+	 * The size of the averaging filter is programmable. (dev.platform_data, see linux/spi/ad7877.h)
+	 * Other user-programmable conversion controls include variable acquisition time,
+	 * and first conversion delay. Up to 16 averages can be taken per conversion.
+	 */
+
+	if (likely(x && z1)) {
+		/* compute touch pressure resistance using equation #1 */
+		Rt = (z2 - z1) * x * ts->x_plate_ohms;
+		Rt /= z1;
+		Rt = (Rt + 2047) >> 12;
+
+		input_report_abs(input_dev, ABS_X, x);
+		input_report_abs(input_dev, ABS_Y, y);
+		input_report_abs(input_dev, ABS_PRESSURE, Rt);
+		input_sync(input_dev);
+	}
+}
+
+static inline void ad7877_ts_event_release(struct ad7877 *ts)
+{
+	struct input_dev *input_dev = ts->input;
+
+	input_report_abs(input_dev, ABS_PRESSURE, 0);
+	input_sync(input_dev);
+}
+
+static void ad7877_timer(unsigned long handle)
+{
+	struct ad7877 *ts = (void *)handle;
+
+	ad7877_ts_event_release(ts);
+}
+
+static irqreturn_t ad7877_irq(int irq, void *handle)
+{
+	struct ad7877 *ts = handle;
+	unsigned long flags;
+	int status;
+
+	/*
+	 * The repeated conversion sequencer controlled by TMR kicked off
+	 * too fast. We ignore the last and process the sample sequence
+	 * currently in the queue. It can't be older than 9.4ms, and we
+	 * need to avoid that ts->msg doesn't get issued twice while in work.
+	 */
+
+	spin_lock_irqsave(&ts->lock, flags);
+	if (!ts->pending) {
+		ts->pending = 1;
+
+		status = spi_async(ts->spi, &ts->msg);
+		if (status)
+			dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
+	}
+	spin_unlock_irqrestore(&ts->lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+static void ad7877_callback(void *_ts)
+{
+	struct ad7877 *ts = _ts;
+
+	spin_lock_irq(&ts->lock);
+
+	ad7877_rx(ts);
+	ts->pending = 0;
+	mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+
+	spin_unlock_irq(&ts->lock);
+}
+
+static void ad7877_disable(struct ad7877 *ts)
+{
+	mutex_lock(&ts->mutex);
+
+	if (!ts->disabled) {
+		ts->disabled = 1;
+		disable_irq(ts->spi->irq);
+
+		/* Wait for spi_async callback */
+		while (ts->pending)
+			msleep(1);
+
+		if (del_timer_sync(&ts->timer))
+			ad7877_ts_event_release(ts);
+	}
+
+	/* we know the chip's in lowpower mode since we always
+	 * leave it that way after every request
+	 */
+
+	mutex_unlock(&ts->mutex);
+}
+
+static void ad7877_enable(struct ad7877 *ts)
+{
+	mutex_lock(&ts->mutex);
+
+	if (ts->disabled) {
+		ts->disabled = 0;
+		enable_irq(ts->spi->irq);
+	}
+
+	mutex_unlock(&ts->mutex);
+}
+
+#define SHOW(name) static ssize_t \
+name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct ad7877	*ts = dev_get_drvdata(dev); \
+	ssize_t v = ad7877_read_adc(ts->spi, \
+			AD7877_READ_CHAN(name)); \
+	if (v < 0) \
+		return v; \
+	return sprintf(buf, "%u\n", (unsigned) v); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
+
+SHOW(aux1)
+SHOW(aux2)
+SHOW(aux3)
+SHOW(bat1)
+SHOW(bat2)
+SHOW(temp1)
+SHOW(temp2)
+
+static ssize_t ad7877_disable_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7877	*ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7877_disable_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7877 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	if (val)
+		ad7877_disable(ts);
+	else
+		ad7877_enable(ts);
+
+	return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
+
+static ssize_t ad7877_dac_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7877	*ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->dac);
+}
+
+static ssize_t ad7877_dac_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7877 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	mutex_lock(&ts->mutex);
+	ts->dac = val & 0xFF;
+	ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);
+	mutex_unlock(&ts->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
+
+static ssize_t ad7877_gpio3_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7877	*ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->gpio3);
+}
+
+static ssize_t ad7877_gpio3_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7877 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	mutex_lock(&ts->mutex);
+	ts->gpio3 = !!val;
+	ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+		 (ts->gpio4 << 4) | (ts->gpio3 << 5));
+	mutex_unlock(&ts->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
+
+static ssize_t ad7877_gpio4_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7877	*ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->gpio4);
+}
+
+static ssize_t ad7877_gpio4_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7877 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	mutex_lock(&ts->mutex);
+	ts->gpio4 = !!val;
+	ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+		     (ts->gpio4 << 4) | (ts->gpio3 << 5));
+	mutex_unlock(&ts->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(gpio4, 0664, ad7877_gpio4_show, ad7877_gpio4_store);
+
+static struct attribute *ad7877_attributes[] = {
+	&dev_attr_temp1.attr,
+	&dev_attr_temp2.attr,
+	&dev_attr_aux1.attr,
+	&dev_attr_aux2.attr,
+	&dev_attr_bat1.attr,
+	&dev_attr_bat2.attr,
+	&dev_attr_disable.attr,
+	&dev_attr_dac.attr,
+	&dev_attr_gpio4.attr,
+	NULL
+};
+
+static const struct attribute_group ad7877_attr_group = {
+	.attrs = ad7877_attributes,
+};
+
+static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
+{
+	struct spi_message *m;
+	int i;
+
+	ts->cmd_crtl2 = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+			AD7877_POL(ts->stopacq_polarity) |
+			AD7877_AVG(ts->averaging) | AD7877_PM(1) |
+			AD7877_TMR(ts->pen_down_acc_interval) |
+			AD7877_ACQ(ts->acquisition_time) |
+			AD7877_FCD(ts->first_conversion_delay);
+
+	ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);
+
+	ts->cmd_crtl1 = AD7877_WRITEADD(AD7877_REG_CTRL1) |
+			AD7877_READADD(AD7877_REG_XPLUS-1) |
+			AD7877_MODE_SEQ1 | AD7877_DFR;
+
+	ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);
+
+	ts->cmd_dummy = 0;
+
+	m = &ts->msg;
+
+	spi_message_init(m);
+
+	m->complete = ad7877_callback;
+	m->context = ts;
+
+	ts->xfer[0].tx_buf = &ts->cmd_crtl1;
+	ts->xfer[0].len = 2;
+
+	spi_message_add_tail(&ts->xfer[0], m);
+
+	ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
+	ts->xfer[1].len = 2;
+
+	spi_message_add_tail(&ts->xfer[1], m);
+
+	for (i = 0; i < 11; i++) {
+		ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
+		ts->xfer[i + 2].len = 2;
+		spi_message_add_tail(&ts->xfer[i + 2], m);
+	}
+}
+
+static int __devinit ad7877_probe(struct spi_device *spi)
+{
+	struct ad7877			*ts;
+	struct input_dev		*input_dev;
+	struct ad7877_platform_data	*pdata = spi->dev.platform_data;
+	int				err;
+	u16				verify;
+
+	if (!spi->irq) {
+		dev_dbg(&spi->dev, "no IRQ?\n");
+		return -ENODEV;
+	}
+
+	if (!pdata) {
+		dev_dbg(&spi->dev, "no platform data?\n");
+		return -ENODEV;
+	}
+
+	/* don't exceed max specified SPI CLK frequency */
+	if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+		dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);
+		return -EINVAL;
+	}
+
+	ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ts || !input_dev) {
+		err = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	dev_set_drvdata(&spi->dev, ts);
+	ts->spi = spi;
+	ts->input = input_dev;
+
+	setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+	mutex_init(&ts->mutex);
+	spin_lock_init(&ts->lock);
+
+	ts->model = pdata->model ? : 7877;
+	ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
+	ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+	ts->pressure_max = pdata->pressure_max ? : ~0;
+
+	ts->stopacq_polarity = pdata->stopacq_polarity;
+	ts->first_conversion_delay = pdata->first_conversion_delay;
+	ts->acquisition_time = pdata->acquisition_time;
+	ts->averaging = pdata->averaging;
+	ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+
+	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
+
+	input_dev->name = "AD7877 Touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->dev.parent = &spi->dev;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(ABS_X, input_dev->absbit);
+	__set_bit(ABS_Y, input_dev->absbit);
+	__set_bit(ABS_PRESSURE, input_dev->absbit);
+
+	input_set_abs_params(input_dev, ABS_X,
+			pdata->x_min ? : 0,
+			pdata->x_max ? : MAX_12BIT,
+			0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			pdata->y_min ? : 0,
+			pdata->y_max ? : MAX_12BIT,
+			0, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE,
+			pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+	ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);
+
+	verify = ad7877_read(spi, AD7877_REG_SEQ1);
+
+	if (verify != AD7877_MM_SEQUENCE){
+		dev_err(&spi->dev, "%s: Failed to probe %s\n",
+			dev_name(&spi->dev), input_dev->name);
+		err = -ENODEV;
+		goto err_free_mem;
+	}
+
+	if (gpio3)
+		ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);
+
+	ad7877_setup_ts_def_msg(spi, ts);
+
+	/* Request AD7877 /DAV GPIO interrupt */
+
+	err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
+			IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+	if (err) {
+		dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
+		goto err_free_mem;
+	}
+
+	err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);
+	if (err)
+		goto err_free_irq;
+
+	err = device_create_file(&spi->dev,
+				 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+	if (err)
+		goto err_remove_attr_group;
+
+	err = input_register_device(input_dev);
+	if (err)
+		goto err_remove_attr;
+
+	return 0;
+
+err_remove_attr:
+	device_remove_file(&spi->dev,
+			   gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+err_remove_attr_group:
+	sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+err_free_irq:
+	free_irq(spi->irq, ts);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(ts);
+	dev_set_drvdata(&spi->dev, NULL);
+	return err;
+}
+
+static int __devexit ad7877_remove(struct spi_device *spi)
+{
+	struct ad7877		*ts = dev_get_drvdata(&spi->dev);
+
+	sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+	device_remove_file(&spi->dev,
+			   gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+
+	ad7877_disable(ts);
+	free_irq(ts->spi->irq, ts);
+
+	input_unregister_device(ts->input);
+	kfree(ts);
+
+	dev_dbg(&spi->dev, "unregistered touchscreen\n");
+	dev_set_drvdata(&spi->dev, NULL);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
+{
+	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+	ad7877_disable(ts);
+
+	return 0;
+}
+
+static int ad7877_resume(struct spi_device *spi)
+{
+	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+	ad7877_enable(ts);
+
+	return 0;
+}
+#else
+#define ad7877_suspend NULL
+#define ad7877_resume  NULL
+#endif
+
+static struct spi_driver ad7877_driver = {
+	.driver = {
+		.name	= "ad7877",
+		.bus	= &spi_bus_type,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ad7877_probe,
+	.remove		= __devexit_p(ad7877_remove),
+	.suspend	= ad7877_suspend,
+	.resume		= ad7877_resume,
+};
+
+static int __init ad7877_init(void)
+{
+	return spi_register_driver(&ad7877_driver);
+}
+module_init(ad7877_init);
+
+static void __exit ad7877_exit(void)
+{
+	spi_unregister_driver(&ad7877_driver);
+}
+module_exit(ad7877_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7877 touchscreen Driver");
+MODULE_LICENSE("GPL");
+/*
+ * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description:	AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface)
+ *
+ * Bugs:        Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ *  - corgi_ts.c
+ *	Copyright (C) 2004-2005 Richard Purdie
+ *  - omap_ts.[hc], ads7846.h, ts_osk.c
+ *	Copyright (C) 2002 MontaVista Software
+ *	Copyright (C) 2004 Texas Instruments
+ *	Copyright (C) 2005 Dirk Behme
+ *  - ad7877.c
+ *	Copyright (C) 2006-2008 Analog Devices Inc.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+
+#include <linux/spi/ad7879.h>
+
+#define AD7879_REG_ZEROS		0
+#define AD7879_REG_CTRL1		1
+#define AD7879_REG_CTRL2		2
+#define AD7879_REG_CTRL3		3
+#define AD7879_REG_AUX1HIGH		4
+#define AD7879_REG_AUX1LOW		5
+#define AD7879_REG_TEMP1HIGH		6
+#define AD7879_REG_TEMP1LOW		7
+#define AD7879_REG_XPLUS		8
+#define AD7879_REG_YPLUS		9
+#define AD7879_REG_Z1			10
+#define AD7879_REG_Z2			11
+#define AD7879_REG_AUXVBAT		12
+#define AD7879_REG_TEMP			13
+#define AD7879_REG_REVID		14
+
+/* Control REG 1 */
+#define AD7879_TMR(x)			((x & 0xFF) << 0)
+#define AD7879_ACQ(x)			((x & 0x3) << 8)
+#define AD7879_MODE_NOC			(0 << 10)	/* Do not convert */
+#define AD7879_MODE_SCC			(1 << 10)	/* Single channel conversion */
+#define AD7879_MODE_SEQ0		(2 << 10)	/* Sequence 0 in Slave Mode */
+#define AD7879_MODE_SEQ1		(3 << 10)	/* Sequence 1 in Master Mode */
+#define AD7879_MODE_INT			(1 << 15)	/* PENIRQ disabled INT enabled */
+
+/* Control REG 2 */
+#define AD7879_FCD(x)			((x & 0x3) << 0)
+#define AD7879_RESET			(1 << 4)
+#define AD7879_MFS(x)			((x & 0x3) << 5)
+#define AD7879_AVG(x)			((x & 0x3) << 7)
+#define	AD7879_SER			(1 << 9)	/* non-differential */
+#define	AD7879_DFR			(0 << 9)	/* differential */
+#define AD7879_GPIOPOL			(1 << 10)
+#define AD7879_GPIODIR			(1 << 11)
+#define AD7879_GPIO_DATA		(1 << 12)
+#define AD7879_GPIO_EN			(1 << 13)
+#define AD7879_PM(x)			((x & 0x3) << 14)
+#define AD7879_PM_SHUTDOWN		(0)
+#define AD7879_PM_DYN			(1)
+#define AD7879_PM_FULLON		(2)
+
+/* Control REG 3 */
+#define AD7879_TEMPMASK_BIT		(1<<15)
+#define AD7879_AUXVBATMASK_BIT		(1<<14)
+#define AD7879_INTMODE_BIT		(1<<13)
+#define AD7879_GPIOALERTMASK_BIT	(1<<12)
+#define AD7879_AUXLOW_BIT		(1<<11)
+#define AD7879_AUXHIGH_BIT		(1<<10)
+#define AD7879_TEMPLOW_BIT		(1<<9)
+#define AD7879_TEMPHIGH_BIT		(1<<8)
+#define AD7879_YPLUS_BIT		(1<<7)
+#define AD7879_XPLUS_BIT		(1<<6)
+#define AD7879_Z1_BIT			(1<<5)
+#define AD7879_Z2_BIT			(1<<4)
+#define AD7879_AUX_BIT			(1<<3)
+#define AD7879_VBAT_BIT			(1<<2)
+#define AD7879_TEMP_BIT			(1<<1)
+
+enum {
+	AD7879_SEQ_XPOS  = 0,
+	AD7879_SEQ_YPOS  = 1,
+	AD7879_SEQ_Z1    = 2,
+	AD7879_SEQ_Z2    = 3,
+	AD7879_NR_SENSE  = 4,
+};
+
+#define	MAX_12BIT			((1<<12)-1)
+#define	TS_PEN_UP_TIMEOUT		msecs_to_jiffies(50)
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define AD7879_DEVID		0x7A
+typedef struct spi_device	bus_device;
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#define AD7879_DEVID		0x79
+typedef struct i2c_client	bus_device;
+#endif
+
+struct ad7879 {
+	bus_device		*bus;
+	struct input_dev	*input;
+	struct work_struct	work;
+	struct timer_list	timer;
+
+	struct mutex		mutex;
+	unsigned		disabled:1;	/* P: mutex */
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+	struct spi_message	msg;
+	struct spi_transfer	xfer[AD7879_NR_SENSE + 1];
+	u16			cmd;
+#endif
+	u16			conversion_data[AD7879_NR_SENSE];
+	char			phys[32];
+	u8			first_conversion_delay;
+	u8			acquisition_time;
+	u8			averaging;
+	u8			pen_down_acc_interval;
+	u8			median;
+	u16			x_plate_ohms;
+	u16			pressure_max;
+	u16			gpio_init;
+	u16			cmd_crtl1;
+	u16			cmd_crtl2;
+	u16			cmd_crtl3;
+	unsigned		gpio:1;
+};
+
+static int ad7879_read(bus_device *, u8);
+static int ad7879_write(bus_device *, u8, u16);
+static void ad7879_collect(struct ad7879 *);
+
+static void ad7879_report(struct ad7879 *ts)
+{
+	struct input_dev *input_dev = ts->input;
+	unsigned Rt;
+	u16 x, y, z1, z2;
+
+	x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
+	y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
+	z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
+	z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
+
+	/*
+	 * The samples processed here are already preprocessed by the AD7879.
+	 * The preprocessing function consists of a median and an averaging filter.
+	 * The combination of these two techniques provides a robust solution,
+	 * discarding the spurious noise in the signal and keeping only the data of interest.
+	 * The size of both filters is programmable. (dev.platform_data, see linux/spi/ad7879.h)
+	 * Other user-programmable conversion controls include variable acquisition time,
+	 * and first conversion delay. Up to 16 averages can be taken per conversion.
+	 */
+
+	if (likely(x && z1)) {
+		/* compute touch pressure resistance using equation #1 */
+		Rt = (z2 - z1) * x * ts->x_plate_ohms;
+		Rt /= z1;
+		Rt = (Rt + 2047) >> 12;
+
+		input_report_abs(input_dev, ABS_X, x);
+		input_report_abs(input_dev, ABS_Y, y);
+		input_report_abs(input_dev, ABS_PRESSURE, Rt);
+		input_sync(input_dev);
+	}
+}
+
+static void ad7879_work(struct work_struct *work)
+{
+	struct ad7879 *ts = container_of(work, struct ad7879, work);
+
+	/* use keventd context to read the result registers */
+	ad7879_collect(ts);
+	ad7879_report(ts);
+	mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+}
+
+static void ad7879_ts_event_release(struct ad7879 *ts)
+{
+	struct input_dev *input_dev = ts->input;
+
+	input_report_abs(input_dev, ABS_PRESSURE, 0);
+	input_sync(input_dev);
+}
+
+static void ad7879_timer(unsigned long handle)
+{
+	struct ad7879 *ts = (void *)handle;
+
+	ad7879_ts_event_release(ts);
+}
+
+static irqreturn_t ad7879_irq(int irq, void *handle)
+{
+	struct ad7879 *ts = handle;
+
+	/* The repeated conversion sequencer controlled by TMR kicked off too fast.
+	 * We ignore the last and process the sample sequence currently in the queue.
+	 * It can't be older than 9.4ms
+	 */
+
+	if (!work_pending(&ts->work))
+		schedule_work(&ts->work);
+
+	return IRQ_HANDLED;
+}
+
+static void ad7879_setup(struct ad7879 *ts)
+{
+	ts->cmd_crtl3 = AD7879_YPLUS_BIT |
+			AD7879_XPLUS_BIT |
+			AD7879_Z2_BIT |
+			AD7879_Z1_BIT |
+			AD7879_TEMPMASK_BIT |
+			AD7879_AUXVBATMASK_BIT |
+			AD7879_GPIOALERTMASK_BIT;
+
+	ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
+			AD7879_AVG(ts->averaging) |
+			AD7879_MFS(ts->median) |
+			AD7879_FCD(ts->first_conversion_delay) |
+			ts->gpio_init;
+
+	ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
+			AD7879_ACQ(ts->acquisition_time) |
+			AD7879_TMR(ts->pen_down_acc_interval);
+
+	ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+	ad7879_write(ts->bus, AD7879_REG_CTRL3, ts->cmd_crtl3);
+	ad7879_write(ts->bus, AD7879_REG_CTRL1, ts->cmd_crtl1);
+}
+
+static void ad7879_disable(struct ad7879 *ts)
+{
+	mutex_lock(&ts->mutex);
+
+	if (!ts->disabled) {
+
+		ts->disabled = 1;
+		disable_irq(ts->bus->irq);
+
+		cancel_work_sync(&ts->work);
+
+		if (del_timer_sync(&ts->timer))
+			ad7879_ts_event_release(ts);
+
+		ad7879_write(ts->bus, AD7879_REG_CTRL2,
+			     AD7879_PM(AD7879_PM_SHUTDOWN));
+	}
+
+	mutex_unlock(&ts->mutex);
+}
+
+static void ad7879_enable(struct ad7879 *ts)
+{
+	mutex_lock(&ts->mutex);
+
+	if (ts->disabled) {
+		ad7879_setup(ts);
+		ts->disabled = 0;
+		enable_irq(ts->bus->irq);
+	}
+
+	mutex_unlock(&ts->mutex);
+}
+
+static ssize_t ad7879_disable_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7879 *ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7879_disable_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7879 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	if (val)
+		ad7879_disable(ts);
+	else
+		ad7879_enable(ts);
+
+	return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
+
+static ssize_t ad7879_gpio_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ad7879 *ts = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", ts->gpio);
+}
+
+static ssize_t ad7879_gpio_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ad7879 *ts = dev_get_drvdata(dev);
+	unsigned long val;
+	int error;
+
+	error = strict_strtoul(buf, 10, &val);
+	if (error)
+		return error;
+
+	mutex_lock(&ts->mutex);
+	ts->gpio = !!val;
+	error = ad7879_write(ts->bus, AD7879_REG_CTRL2,
+			   ts->gpio ?
+				ts->cmd_crtl2 & ~AD7879_GPIO_DATA :
+				ts->cmd_crtl2 | AD7879_GPIO_DATA);
+	mutex_unlock(&ts->mutex);
+
+	return error ? : count;
+}
+
+static DEVICE_ATTR(gpio, 0664, ad7879_gpio_show, ad7879_gpio_store);
+
+static struct attribute *ad7879_attributes[] = {
+	&dev_attr_disable.attr,
+	&dev_attr_gpio.attr,
+	NULL
+};
+
+static const struct attribute_group ad7879_attr_group = {
+	.attrs = ad7879_attributes,
+};
+
+static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
+{
+	struct input_dev *input_dev;
+	struct ad7879_platform_data *pdata = bus->dev.platform_data;
+	int err;
+	u16 revid;
+
+	if (!bus->irq) {
+		dev_err(&bus->dev, "no IRQ?\n");
+		return -ENODEV;
+	}
+
+	if (!pdata) {
+		dev_err(&bus->dev, "no platform data?\n");
+		return -ENODEV;
+	}
+
+	input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	ts->input = input_dev;
+
+	setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+	INIT_WORK(&ts->work, ad7879_work);
+	mutex_init(&ts->mutex);
+
+	ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+	ts->pressure_max = pdata->pressure_max ? : ~0;
+
+	ts->first_conversion_delay = pdata->first_conversion_delay;
+	ts->acquisition_time = pdata->acquisition_time;
+	ts->averaging = pdata->averaging;
+	ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+	ts->median = pdata->median;
+
+	if (pdata->gpio_output)
+		ts->gpio_init = AD7879_GPIO_EN |
+				(pdata->gpio_default ? 0 : AD7879_GPIO_DATA);
+	else
+		ts->gpio_init = AD7879_GPIO_EN | AD7879_GPIODIR;
+
+	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&bus->dev));
+
+	input_dev->name = "AD7879 Touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->dev.parent = &bus->dev;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(ABS_X, input_dev->absbit);
+	__set_bit(ABS_Y, input_dev->absbit);
+	__set_bit(ABS_PRESSURE, input_dev->absbit);
+
+	input_set_abs_params(input_dev, ABS_X,
+			pdata->x_min ? : 0,
+			pdata->x_max ? : MAX_12BIT,
+			0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			pdata->y_min ? : 0,
+			pdata->y_max ? : MAX_12BIT,
+			0, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE,
+			pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+	err = ad7879_write(bus, AD7879_REG_CTRL2, AD7879_RESET);
+
+	if (err < 0) {
+		dev_err(&bus->dev, "Failed to write %s\n", input_dev->name);
+		goto err_free_mem;
+	}
+
+	revid = ad7879_read(bus, AD7879_REG_REVID);
+
+	if ((revid & 0xFF) != AD7879_DEVID) {
+		dev_err(&bus->dev, "Failed to probe %s\n", input_dev->name);
+		err = -ENODEV;
+		goto err_free_mem;
+	}
+
+	ad7879_setup(ts);
+
+	err = request_irq(bus->irq, ad7879_irq,
+			  IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
+			  bus->dev.driver->name, ts);
+
+	if (err) {
+		dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
+		goto err_free_mem;
+	}
+
+	err = sysfs_create_group(&bus->dev.kobj, &ad7879_attr_group);
+	if (err)
+		goto err_free_irq;
+
+	err = input_register_device(input_dev);
+	if (err)
+		goto err_remove_attr;
+
+	dev_info(&bus->dev, "Rev.%d touchscreen, irq %d\n",
+		 revid >> 8, bus->irq);
+
+	return 0;
+
+err_remove_attr:
+	sysfs_remove_group(&bus->dev.kobj, &ad7879_attr_group);
+err_free_irq:
+	free_irq(bus->irq, ts);
+err_free_mem:
+	input_free_device(input_dev);
+
+	return err;
+}
+
+static int __devexit ad7879_destroy(bus_device *bus, struct ad7879 *ts)
+{
+	ad7879_disable(ts);
+	sysfs_remove_group(&ts->bus->dev.kobj, &ad7879_attr_group);
+	free_irq(ts->bus->irq, ts);
+	input_unregister_device(ts->input);
+	dev_dbg(&bus->dev, "unregistered touchscreen\n");
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7879_suspend(bus_device *bus, pm_message_t message)
+{
+	struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+	ad7879_disable(ts);
+
+	return 0;
+}
+
+static int ad7879_resume(bus_device *bus)
+{
+	struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+	ad7879_enable(ts);
+
+	return 0;
+}
+#else
+#define ad7879_suspend NULL
+#define ad7879_resume  NULL
+#endif
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define MAX_SPI_FREQ_HZ		5000000
+#define AD7879_CMD_MAGIC	0xE000
+#define AD7879_CMD_READ		(1 << 10)
+#define AD7879_WRITECMD(reg)	(AD7879_CMD_MAGIC | (reg & 0xF))
+#define AD7879_READCMD(reg)	(AD7879_CMD_MAGIC | AD7879_CMD_READ | (reg & 0xF))
+
+struct ser_req {
+	u16			command;
+	u16			data;
+	struct spi_message	msg;
+	struct spi_transfer	xfer[2];
+};
+
+/*
+ * ad7879_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done in ad7879_collect().
+ */
+
+static int ad7879_read(struct spi_device *spi, u8 reg)
+{
+	struct ser_req *req;
+	int status, ret;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	spi_message_init(&req->msg);
+
+	req->command = (u16) AD7879_READCMD(reg);
+	req->xfer[0].tx_buf = &req->command;
+	req->xfer[0].len = 2;
+
+	req->xfer[1].rx_buf = &req->data;
+	req->xfer[1].len = 2;
+
+	spi_message_add_tail(&req->xfer[0], &req->msg);
+	spi_message_add_tail(&req->xfer[1], &req->msg);
+
+	status = spi_sync(spi, &req->msg);
+	ret = status ? : req->data;
+
+	kfree(req);
+
+	return ret;
+}
+
+static int ad7879_write(struct spi_device *spi, u8 reg, u16 val)
+{
+	struct ser_req *req;
+	int status;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	spi_message_init(&req->msg);
+
+	req->command = (u16) AD7879_WRITECMD(reg);
+	req->xfer[0].tx_buf = &req->command;
+	req->xfer[0].len = 2;
+
+	req->data = val;
+	req->xfer[1].tx_buf = &req->data;
+	req->xfer[1].len = 2;
+
+	spi_message_add_tail(&req->xfer[0], &req->msg);
+	spi_message_add_tail(&req->xfer[1], &req->msg);
+
+	status = spi_sync(spi, &req->msg);
+
+	kfree(req);
+
+	return status;
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+	int status = spi_sync(ts->bus, &ts->msg);
+
+	if (status)
+		dev_err(&ts->bus->dev, "spi_sync --> %d\n", status);
+}
+
+static void ad7879_setup_ts_def_msg(struct ad7879 *ts)
+{
+	struct spi_message *m;
+	int i;
+
+	ts->cmd = (u16) AD7879_READCMD(AD7879_REG_XPLUS);
+
+	m = &ts->msg;
+	spi_message_init(m);
+	ts->xfer[0].tx_buf = &ts->cmd;
+	ts->xfer[0].len = 2;
+
+	spi_message_add_tail(&ts->xfer[0], m);
+
+	for (i = 0; i < AD7879_NR_SENSE; i++) {
+		ts->xfer[i + 1].rx_buf = &ts->conversion_data[i];
+		ts->xfer[i + 1].len = 2;
+		spi_message_add_tail(&ts->xfer[i + 1], m);
+	}
+}
+
+static int __devinit ad7879_probe(struct spi_device *spi)
+{
+	struct ad7879 *ts;
+	int error;
+
+	/* don't exceed max specified SPI CLK frequency */
+	if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+		dev_err(&spi->dev, "SPI CLK %d Hz?\n", spi->max_speed_hz);
+		return -EINVAL;
+	}
+
+	ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	dev_set_drvdata(&spi->dev, ts);
+	ts->bus = spi;
+
+	ad7879_setup_ts_def_msg(ts);
+
+	error = ad7879_construct(spi, ts);
+	if (error) {
+		dev_set_drvdata(&spi->dev, NULL);
+		kfree(ts);
+	}
+
+	return 0;
+}
+
+static int __devexit ad7879_remove(struct spi_device *spi)
+{
+	struct ad7879 *ts = dev_get_drvdata(&spi->dev);
+
+	ad7879_destroy(spi, ts);
+	dev_set_drvdata(&spi->dev, NULL);
+	kfree(ts);
+
+	return 0;
+}
+
+static struct spi_driver ad7879_driver = {
+	.driver = {
+		.name	= "ad7879",
+		.bus	= &spi_bus_type,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ad7879_probe,
+	.remove		= __devexit_p(ad7879_remove),
+	.suspend	= ad7879_suspend,
+	.resume		= ad7879_resume,
+};
+
+static int __init ad7879_init(void)
+{
+	return spi_register_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+	spi_unregister_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+
+/* All registers are word-sized.
+ * AD7879 uses a high-byte first convention.
+ */
+static int ad7879_read(struct i2c_client *client, u8 reg)
+{
+	return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int ad7879_write(struct i2c_client *client, u8 reg, u16 val)
+{
+	return i2c_smbus_write_word_data(client, reg, swab16(val));
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+	int i;
+
+	for (i = 0; i < AD7879_NR_SENSE; i++)
+		ts->conversion_data[i] = ad7879_read(ts->bus,
+						     AD7879_REG_XPLUS + i);
+}
+
+static int __devinit ad7879_probe(struct i2c_client *client,
+					const struct i2c_device_id *id)
+{
+	struct ad7879 *ts;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter,
+					I2C_FUNC_SMBUS_WORD_DATA)) {
+		dev_err(&client->dev, "SMBUS Word Data not Supported\n");
+		return -EIO;
+	}
+
+	ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, ts);
+	ts->bus = client;
+
+	error = ad7879_construct(client, ts);
+	if (error) {
+		i2c_set_clientdata(client, NULL);
+		kfree(ts);
+	}
+
+	return 0;
+}
+
+static int __devexit ad7879_remove(struct i2c_client *client)
+{
+	struct ad7879 *ts = dev_get_drvdata(&client->dev);
+
+	ad7879_destroy(client, ts);
+	i2c_set_clientdata(client, NULL);
+	kfree(ts);
+
+	return 0;
+}
+
+static const struct i2c_device_id ad7879_id[] = {
+	{ "ad7879", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ad7879_id);
+
+static struct i2c_driver ad7879_driver = {
+	.driver = {
+		.name	= "ad7879",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ad7879_probe,
+	.remove		= __devexit_p(ad7879_remove),
+	.suspend	= ad7879_suspend,
+	.resume		= ad7879_resume,
+	.id_table	= ad7879_id,
+};
+
+static int __init ad7879_init(void)
+{
+	return i2c_add_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+	i2c_del_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+#endif
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen Driver");
+MODULE_LICENSE("GPL");
@@ -162,6 +162,7 @@
 		input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
 		input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
 		input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+		input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
 		input_sync(wm->input_dev);
 		reads++;
 	} while (reads < cinfo[sp_idx].reads);
@@ -245,7 +246,7 @@
 	if (enable)
 		enable_irq(wm->pen_irq);
 	else
-		disable_irq(wm->pen_irq);
+		disable_irq_nosync(wm->pen_irq);
 }
  
 static struct wm97xx_mach_ops mainstone_mach_ops = {
@@ -151,12 +151,14 @@
 	input_report_abs(idev, ABS_X, x);
 	input_report_abs(idev, ABS_Y, y);
 	input_report_abs(idev, ABS_PRESSURE, pressure);
+	input_report_key(idev, BTN_TOUCH, 1);
 	input_sync(idev);
 }
  
 static void ucb1400_ts_event_release(struct input_dev *idev)
 {
 	input_report_abs(idev, ABS_PRESSURE, 0);
+	input_report_key(idev, BTN_TOUCH, 0);
 	input_sync(idev);
 }
  
@@ -377,7 +379,8 @@
 	ucb->ts_idev->id.product	= ucb->id;
 	ucb->ts_idev->open		= ucb1400_ts_open;
 	ucb->ts_idev->close		= ucb1400_ts_close;
-	ucb->ts_idev->evbit[0]		= BIT_MASK(EV_ABS);
+	ucb->ts_idev->evbit[0]		= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+	ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
  
 	ucb1400_adc_enable(ucb->ac97);
 	x_res = ucb1400_ts_read_xres(ucb);
@@ -409,6 +409,7 @@
 			wm->pen_is_down = 0;
 			dev_dbg(wm->dev, "pen up\n");
 			input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
+			input_report_key(wm->input_dev, BTN_TOUCH, 0);
 			input_sync(wm->input_dev);
 		} else if (!(rc & RC_AGAIN)) {
 			/* We need high frequency updates only while
@@ -433,6 +434,7 @@
 		input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
 		input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
 		input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
+		input_report_key(wm->input_dev, BTN_TOUCH, 1);
 		input_sync(wm->input_dev);
 		wm->pen_is_down = 1;
 		wm->ts_reader_interval = wm->ts_reader_min_interval;
  
  
@@ -628,18 +630,21 @@
 	wm->input_dev->phys = "wm97xx";
 	wm->input_dev->open = wm97xx_ts_input_open;
 	wm->input_dev->close = wm97xx_ts_input_close;
-	set_bit(EV_ABS, wm->input_dev->evbit);
-	set_bit(ABS_X, wm->input_dev->absbit);
-	set_bit(ABS_Y, wm->input_dev->absbit);
-	set_bit(ABS_PRESSURE, wm->input_dev->absbit);
+
+	__set_bit(EV_ABS, wm->input_dev->evbit);
+	__set_bit(EV_KEY, wm->input_dev->evbit);
+	__set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
 	input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
 			     abs_x[2], 0);
 	input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
 			     abs_y[2], 0);
 	input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
 			     abs_p[2], 0);
+
 	input_set_drvdata(wm->input_dev, wm);
 	wm->input_dev->dev.parent = dev;
+
 	ret = input_register_device(wm->input_dev);
 	if (ret < 0)
 		goto dev_alloc_err;
+/*
+ * zylonite-wm97xx.c  --  Zylonite Continuous Touch screen driver
+ *
+ * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *
+ *  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.
+ *
+ * Notes:
+ *     This is a wm97xx extended touch driver supporting interrupt driven
+ *     and continuous operation on Marvell Zylonite development systems
+ *     (which have a WM9713 on board).
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/wm97xx.h>
+
+#include <mach/hardware.h>
+#include <mach/mfp.h>
+#include <mach/regs-ac97.h>
+
+struct continuous {
+	u16 id;    /* codec id */
+	u8 code;   /* continuous code */
+	u8 reads;  /* number of coord reads per read cycle */
+	u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+	{ WM9713_ID2, 0, WM_READS(94),  94  },
+	{ WM9713_ID2, 1, WM_READS(120), 120 },
+	{ WM9713_ID2, 2, WM_READS(154), 154 },
+	{ WM9713_ID2, 3, WM_READS(188), 188 },
+};
+
+/* continuous speed index */
+static int sp_idx;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO machines */
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+	int i;
+
+	msleep(1);
+
+	for (i = 0; i < 16; i++)
+		MODR;
+}
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+	u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+	int reads = 0;
+	static u16 last, tries;
+
+	/* When the AC97 queue has been drained we need to allow time
+	 * to buffer up samples otherwise we end up spinning polling
+	 * for samples.  The controller can't have a suitably low
+	 * threashold set to use the notifications it gives.
+	 */
+	msleep(1);
+
+	if (tries > 5) {
+		tries = 0;
+		return RC_PENUP;
+	}
+
+	x = MODR;
+	if (x == last) {
+		tries++;
+		return RC_AGAIN;
+	}
+	last = x;
+	do {
+		if (reads)
+			x = MODR;
+		y = MODR;
+		if (pressure)
+			p = MODR;
+
+		/* are samples valid */
+		if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
+		    (y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
+		    (p & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_PRES)
+			goto up;
+
+		/* coordinate is good */
+		tries = 0;
+		input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+		input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+		input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+		input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
+		input_sync(wm->input_dev);
+		reads++;
+	} while (reads < cinfo[sp_idx].reads);
+up:
+	return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+	int idx;
+
+	/* check we have a codec */
+	if (wm->ac97 == NULL)
+		return -ENODEV;
+
+	/* Go you big red fire engine */
+	for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+		if (wm->id != cinfo[idx].id)
+			continue;
+		sp_idx = idx;
+		if (cont_rate <= cinfo[idx].speed)
+			break;
+	}
+	wm->acc_rate = cinfo[sp_idx].code;
+	wm->acc_slot = ac97_touch_slot;
+	dev_info(wm->dev,
+		 "zylonite accelerated touchscreen driver, %d samples/sec\n",
+		 cinfo[sp_idx].speed);
+
+	return 0;
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+	if (enable)
+		enable_irq(wm->pen_irq);
+	else
+		disable_irq_nosync(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops zylonite_mach_ops = {
+	.acc_enabled	= 1,
+	.acc_pen_up	= wm97xx_acc_pen_up,
+	.acc_pen_down	= wm97xx_acc_pen_down,
+	.acc_startup	= wm97xx_acc_startup,
+	.irq_enable	= wm97xx_irq_enable,
+	.irq_gpio	= WM97XX_GPIO_2,
+};
+
+static int zylonite_wm97xx_probe(struct platform_device *pdev)
+{
+	struct wm97xx *wm = platform_get_drvdata(pdev);
+	int gpio_touch_irq;
+
+	if (cpu_is_pxa320())
+		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
+	else
+		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
+
+	wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
+	set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+
+	wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+			   WM97XX_GPIO_POL_HIGH,
+			   WM97XX_GPIO_STICKY,
+			   WM97XX_GPIO_WAKE);
+	wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+			   WM97XX_GPIO_POL_HIGH,
+			   WM97XX_GPIO_NOTSTICKY,
+			   WM97XX_GPIO_NOWAKE);
+
+	return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
+}
+
+static int zylonite_wm97xx_remove(struct platform_device *pdev)
+{
+	struct wm97xx *wm = platform_get_drvdata(pdev);
+
+	wm97xx_unregister_mach_ops(wm);
+
+	return 0;
+}
+
+static struct platform_driver zylonite_wm97xx_driver = {
+	.probe	= zylonite_wm97xx_probe,
+	.remove	= zylonite_wm97xx_remove,
+	.driver	= {
+		.name	= "wm97xx-touch",
+	},
+};
+
+static int __init zylonite_wm97xx_init(void)
+{
+	return platform_driver_register(&zylonite_wm97xx_driver);
+}
+
+static void __exit zylonite_wm97xx_exit(void)
+{
+	platform_driver_unregister(&zylonite_wm97xx_driver);
+}
+
+module_init(zylonite_wm97xx_init);
+module_exit(zylonite_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
+MODULE_LICENSE("GPL");
+#ifndef __ROTARY_ENCODER_H__
+#define __ROTARY_ENCODER_H__
+
+struct rotary_encoder_platform_data {
+	unsigned int steps;
+	unsigned int axis;
+	unsigned int gpio_a;
+	unsigned int gpio_b;
+	unsigned int inverted_a;
+	unsigned int inverted_b;
+};
+
+#endif /* __ROTARY_ENCODER_H__ */
+/* linux/spi/ad7879.h */
+
+/* Touchscreen characteristics vary between boards and models.  The
+ * platform_data for the device's "struct device" holds this information.
+ *
+ * It's OK if the min/max values are zero.
+ */
+struct ad7879_platform_data {
+	u16	model;			/* 7879 */
+	u16	x_plate_ohms;
+	u16	x_min, x_max;
+	u16	y_min, y_max;
+	u16	pressure_min, pressure_max;
+
+	/* [0..255] 0=OFF Starts at 1=550us and goes
+	 * all the way to 9.440ms in steps of 35us.
+	 */
+	u8	pen_down_acc_interval;
+	/* [0..15] Starts at 0=128us and goes all the
+	 * way to 4.096ms in steps of 128us.
+	 */
+	u8	first_conversion_delay;
+	/* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */
+	u8	acquisition_time;
+	/* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */
+	u8	averaging;
+	/* [0..3] Perform X measurements 0 = OFF,
+	 * 1 = 4, 2 = 8, 3 = 16 (median > averaging)
+	 */
+	u8	median;
+	/* 1 = AUX/VBAT/GPIO set to GPIO Output */
+	u8	gpio_output;
+	/* Initial GPIO pin state (valid if gpio_output = 1) */
+	u8	gpio_default;
+};
	1	+rotary-encoder - a generic driver for GPIO connected devices
	2	+Daniel Mack <daniel@caiaq.de>, Feb 2009
	3	+
	4	+0. Function
	5	+-----------
	6	+
	7	+Rotary encoders are devices which are connected to the CPU or other
	8	+peripherals with two wires. The outputs are phase-shifted by 90 degrees
	9	+and by triggering on falling and rising edges, the turn direction can
	10	+be determined.
	11	+
	12	+The phase diagram of these two outputs look like this:
	13	+
	14	+ _____ _____ _____
	15	+ \| \| \| \| \| \|
	16	+ Channel A ____\| \|_____\| \|_____\| \|____
	17	+
	18	+ : : : : : : : : : : : :
	19	+ __ _____ _____ _____
	20	+ \| \| \| \| \| \| \|
	21	+ Channel B \|_____\| \|_____\| \|_____\| \|__
	22	+
	23	+ : : : : : : : : : : : :
	24	+ Event a b c d a b c d a b c d
	25	+
	26	+ \|<-------->\|
	27	+ one step
	28	+
	29	+
	30	+For more information, please see
	31	+ http://en.wikipedia.org/wiki/Rotary_encoder
	32	+
	33	+
	34	+1. Events / state machine
	35	+-------------------------
	36	+
	37	+a) Rising edge on channel A, channel B in low state
	38	+ This state is used to recognize a clockwise turn
	39	+
	40	+b) Rising edge on channel B, channel A in high state
	41	+ When entering this state, the encoder is put into 'armed' state,
	42	+ meaning that there it has seen half the way of a one-step transition.
	43	+
	44	+c) Falling edge on channel A, channel B in high state
	45	+ This state is used to recognize a counter-clockwise turn
	46	+
	47	+d) Falling edge on channel B, channel A in low state
	48	+ Parking position. If the encoder enters this state, a full transition
	49	+ should have happend, unless it flipped back on half the way. The
	50	+ 'armed' state tells us about that.
	51	+
	52	+2. Platform requirements
	53	+------------------------
	54	+
	55	+As there is no hardware dependent call in this driver, the platform it is
	56	+used with must support gpiolib. Another requirement is that IRQs must be
	57	+able to fire on both edges.
	58	+
	59	+
	60	+3. Board integration
	61	+--------------------
	62	+
	63	+To use this driver in your system, register a platform_device with the
	64	+name 'rotary-encoder' and associate the IRQs and some specific platform
	65	+data with it.
	66	+
	67	+struct rotary_encoder_platform_data is declared in
	68	+include/linux/rotary-encoder.h and needs to be filled with the number of
	69	+steps the encoder has and can carry information about externally inverted
	70	+signals (because of used invertig buffer or other reasons).
	71	+
	72	+Because GPIO to IRQ mapping is platform specific, this information must
	73	+be given in seperately to the driver. See the example below.
	74	+
	75	+---------<snip>---------
	76	+
	77	+/* board support file example */
	78	+
	79	+#include <linux/input.h>
	80	+#include <linux/rotary_encoder.h>
	81	+
	82	+#define GPIO_ROTARY_A 1
	83	+#define GPIO_ROTARY_B 2
	84	+
	85	+static struct rotary_encoder_platform_data my_rotary_encoder_info = {
	86	+ .steps = 24,
	87	+ .axis = ABS_X,
	88	+ .gpio_a = GPIO_ROTARY_A,
	89	+ .gpio_b = GPIO_ROTARY_B,
	90	+ .inverted_a = 0,
	91	+ .inverted_b = 0,
	92	+};
	93	+
	94	+static struct platform_device rotary_encoder_device = {
	95	+ .name = "rotary-encoder",
	96	+ .id = 0,
	97	+ .dev = {
	98	+ .platform_data = &my_rotary_encoder_info,
	99	+ }
	100	+};
...	...	@@ -80,6 +80,9 @@
80	80	/* Compact Flash GPIO pin */
81	81	#define CF_GPIO_NUM 13
82	82
	83	+/* S1 button GPIO (shared with UART0_SIN) */
	84	+#define GPIO_BTN_S1 1
	85	+
83	86	extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
84	87	extern void rb532_gpio_set_istat(int bit, unsigned gpio);
85	88	extern void rb532_gpio_set_func(unsigned gpio);
...	...	@@ -200,26 +200,9 @@
200	200	.id = -1,
201	201	};
202	202
203		-static struct gpio_keys_button rb532_gpio_btn[] = {
204		- {
205		- .gpio = 1,
206		- .code = BTN_0,
207		- .desc = "S1",
208		- .active_low = 1,
209		- }
210		-};
211		-
212		-static struct gpio_keys_platform_data rb532_gpio_btn_data = {
213		- .buttons = rb532_gpio_btn,
214		- .nbuttons = ARRAY_SIZE(rb532_gpio_btn),
215		-};
216		-
217	203	static struct platform_device rb532_button = {
218		- .name = "gpio-keys",
	204	+ .name = "rb532-button",
219	205	.id = -1,
220		- .dev = {
221		- .platform_data = &rb532_gpio_btn_data,
222		- }
223	206	};
224	207
225	208	static struct resource rb532_wdt_res[] = {
...	...	@@ -132,6 +132,11 @@
132	132	}
133	133	}
134	134
	135	+static void input_stop_autorepeat(struct input_dev *dev)
	136	+{
	137	+ del_timer(&dev->timer);
	138	+}
	139	+
135	140	#define INPUT_IGNORE_EVENT 0
136	141	#define INPUT_PASS_TO_HANDLERS 1
137	142	#define INPUT_PASS_TO_DEVICE 2
...	...	@@ -167,6 +172,8 @@
167	172	__change_bit(code, dev->key);
168	173	if (value)
169	174	input_start_autorepeat(dev, code);
	175	+ else
	176	+ input_stop_autorepeat(dev);
170	177	}
171	178
172	179	disposition = INPUT_PASS_TO_HANDLERS;
173	180
174	181
...	...	@@ -737,11 +744,11 @@
737	744
738	745	static unsigned int input_proc_devices_poll(struct file file, poll_table wait)
739	746	{
740		- int state = input_devices_state;
741		-
742	747	poll_wait(file, &input_devices_poll_wait, wait);
743		- if (state != input_devices_state)
	748	+ if (file->f_version != input_devices_state) {
	749	+ file->f_version = input_devices_state;
744	750	return POLLIN \| POLLRDNORM;
	751	+ }
745	752
746	753	return 0;
747	754	}
...	...	@@ -229,7 +229,8 @@
229	229	/*
230	230	* System-specific ketymap fixup routine
231	231	*/
232		-static void (atkbd_platform_fixup)(struct atkbd );
	232	+static void (atkbd_platform_fixup)(struct atkbd , const void *data);
	233	+static void *atkbd_platform_fixup_data;
233	234
234	235	static ssize_t atkbd_attr_show_helper(struct device dev, char buf,
235	236	ssize_t (handler)(struct atkbd , char *));
236	237
237	238
238	239
239	240
240	241
241	242
242	243
243	244
244	245
245	246
246	247
247	248
...	...	@@ -834,87 +835,64 @@
834	835	}
835	836
836	837	/*
837		- * Most special keys (Fn+F?) on Dell laptops do not generate release
838		- * events so we have to do it ourselves.
	838	+ * generate release events for the keycodes given in data
839	839	*/
840		-static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd)
	840	+static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
	841	+ const void *data)
841	842	{
842		- static const unsigned int forced_release_keys[] = {
843		- 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
844		- };
845		- int i;
	843	+ const unsigned int *keys = data;
	844	+ unsigned int i;
846	845
847	846	if (atkbd->set == 2)
848		- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
849		- __set_bit(forced_release_keys[i],
850		- atkbd->force_release_mask);
	847	+ for (i = 0; keys[i] != -1U; i++)
	848	+ __set_bit(keys[i], atkbd->force_release_mask);
851	849	}
852	850
853	851	/*
	852	+ * Most special keys (Fn+F?) on Dell laptops do not generate release
	853	+ * events so we have to do it ourselves.
	854	+ */
	855	+static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
	856	+ 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
	857	+};
	858	+
	859	+/*
854	860	* Perform fixup for HP system that doesn't generate release
855	861	* for its video switch
856	862	*/
857		-static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
858		-{
859		- static const unsigned int forced_release_keys[] = {
860		- 0x94,
861		- };
862		- int i;
	863	+static unsigned int atkbd_hp_forced_release_keys[] = {
	864	+ 0x94, -1U
	865	+};
863	866
864		- if (atkbd->set == 2)
865		- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
866		- __set_bit(forced_release_keys[i],
867		- atkbd->force_release_mask);
868		-}
869		-
870	867	/*
871	868	* Inventec system with broken key release on volume keys
872	869	*/
873		-static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
874		-{
875		- const unsigned int forced_release_keys[] = {
876		- 0xae, 0xb0,
877		- };
878		- int i;
	870	+static unsigned int atkbd_inventec_forced_release_keys[] = {
	871	+ 0xae, 0xb0, -1U
	872	+};
879	873
880		- if (atkbd->set == 2)
881		- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
882		- __set_bit(forced_release_keys[i],
883		- atkbd->force_release_mask);
884		-}
885		-
886	874	/*
887	875	* Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
888	876	* for its volume buttons
889	877	*/
890		-static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd)
891		-{
892		- const unsigned int forced_release_keys[] = {
893		- 0xae, 0xb0,
894		- };
895		- int i;
	878	+static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
	879	+ 0xae, 0xb0, -1U
	880	+};
896	881
897		- if (atkbd->set == 2)
898		- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
899		- __set_bit(forced_release_keys[i],
900		- atkbd->force_release_mask);
901		-}
902		-
903	882	/*
904	883	* Samsung NC10 with Fn+F? key release not working
905	884	*/
906		-static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd)
907		-{
908		- const unsigned int forced_release_keys[] = {
909		- 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
910		- };
911		- int i;
	885	+static unsigned int atkbd_samsung_forced_release_keys[] = {
	886	+ 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
	887	+};
912	888
913		- if (atkbd->set == 2)
914		- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
915		- __set_bit(forced_release_keys[i],
916		- atkbd->force_release_mask);
917		-}
	889	+/*
	890	+ * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
	891	+ * do not generate release events so we have to do it ourselves.
	892	+ */
	893	+static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
	894	+ 0xb0, 0xae, -1U
	895	+};
918	896
919	897	/*
920	898	* atkbd_set_keycode_table() initializes keyboard's keycode table
...	...	@@ -967,7 +945,7 @@
967	945	* Perform additional fixups
968	946	*/
969	947	if (atkbd_platform_fixup)
970		- atkbd_platform_fixup(atkbd);
	948	+ atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
971	949	}
972	950
973	951	/*
974	952
...	...	@@ -1492,9 +1470,11 @@
1492	1470	return sprintf(buf, "%lu\n", atkbd->err_count);
1493	1471	}
1494	1472
1495		-static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
	1473	+static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1496	1474	{
1497		- atkbd_platform_fixup = id->driver_data;
	1475	+ atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
	1476	+ atkbd_platform_fixup_data = id->driver_data;
	1477	+
1498	1478	return 0;
1499	1479	}
1500	1480
...	...	@@ -1505,8 +1485,8 @@
1505	1485	DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1506	1486	DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1507	1487	},
1508		- .callback = atkbd_setup_fixup,
1509		- .driver_data = atkbd_dell_laptop_keymap_fixup,
	1488	+ .callback = atkbd_setup_forced_release,
	1489	+ .driver_data = atkbd_dell_laptop_forced_release_keys,
1510	1490	},
1511	1491	{
1512	1492	.ident = "Dell Laptop",
...	...	@@ -1514,8 +1494,8 @@
1514	1494	DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1515	1495	DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1516	1496	},
1517		- .callback = atkbd_setup_fixup,
1518		- .driver_data = atkbd_dell_laptop_keymap_fixup,
	1497	+ .callback = atkbd_setup_forced_release,
	1498	+ .driver_data = atkbd_dell_laptop_forced_release_keys,
1519	1499	},
1520	1500	{
1521	1501	.ident = "HP 2133",
...	...	@@ -1523,8 +1503,8 @@
1523	1503	DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1524	1504	DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1525	1505	},
1526		- .callback = atkbd_setup_fixup,
1527		- .driver_data = atkbd_hp_keymap_fixup,
	1506	+ .callback = atkbd_setup_forced_release,
	1507	+ .driver_data = atkbd_hp_forced_release_keys,
1528	1508	},
1529	1509	{
1530	1510	.ident = "HP Pavilion ZV6100",
...	...	@@ -1532,8 +1512,8 @@
1532	1512	DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1533	1513	DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1534	1514	},
1535		- .callback = atkbd_setup_fixup,
1536		- .driver_data = atkbd_hp_zv6100_keymap_fixup,
	1515	+ .callback = atkbd_setup_forced_release,
	1516	+ .driver_data = atkbd_hp_zv6100_forced_release_keys,
1537	1517	},
1538	1518	{
1539	1519	.ident = "Inventec Symphony",
...	...	@@ -1541,8 +1521,8 @@
1541	1521	DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1542	1522	DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1543	1523	},
1544		- .callback = atkbd_setup_fixup,
1545		- .driver_data = atkbd_inventec_keymap_fixup,
	1524	+ .callback = atkbd_setup_forced_release,
	1525	+ .driver_data = atkbd_inventec_forced_release_keys,
1546	1526	},
1547	1527	{
1548	1528	.ident = "Samsung NC10",
...	...	@@ -1550,8 +1530,17 @@
1550	1530	DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1551	1531	DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1552	1532	},
1553		- .callback = atkbd_setup_fixup,
1554		- .driver_data = atkbd_samsung_keymap_fixup,
	1533	+ .callback = atkbd_setup_forced_release,
	1534	+ .driver_data = atkbd_samsung_forced_release_keys,
	1535	+ },
	1536	+ {
	1537	+ .ident = "Fujitsu Amilo PA 1510",
	1538	+ .matches = {
	1539	+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
	1540	+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
	1541	+ },
	1542	+ .callback = atkbd_setup_forced_release,
	1543	+ .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1555	1544	},
1556	1545	{ }
1557	1546	};
...	...	@@ -211,8 +211,8 @@
211	211
212	212	if (!pdata->debounce_time \|\| pdata->debounce_time > MAX_MULT \|\|
213	213	!pdata->coldrive_time \|\| pdata->coldrive_time > MAX_MULT) {
214		- printk(KERN_ERR DRV_NAME
215		- ": Invalid Debounce/Columdrive Time from pdata\n");
	214	+ printk(KERN_WARNING DRV_NAME
	215	+ ": Invalid Debounce/Columndrive Time in platform data\n");
216	216	bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */
217	217	} else {
218	218	bfin_write_KPAD_MSEL(
...	...	@@ -198,45 +198,28 @@
198	198	}
199	199
200	200
201		-/* initialise HIL */
202		-static int __init
203		-hil_keyb_init(void)
	201	+/* initialize HIL */
	202	+static int __devinit hil_keyb_init(void)
204	203	{
205	204	unsigned char c;
206	205	unsigned int i, kbid;
207	206	wait_queue_head_t hil_wait;
208	207	int err;
209	208
210		- if (hil_dev.dev) {
	209	+ if (hil_dev.dev)
211	210	return -ENODEV; /* already initialized */
212		- }
213	211
	212	+ init_waitqueue_head(&hil_wait);
214	213	spin_lock_init(&hil_dev.lock);
	214	+
215	215	hil_dev.dev = input_allocate_device();
216	216	if (!hil_dev.dev)
217	217	return -ENOMEM;
218	218
219		-#if defined(CONFIG_HP300)
220		- if (!MACH_IS_HP300) {
221		- err = -ENODEV;
222		- goto err1;
223		- }
224		- if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
225		- printk(KERN_ERR "HIL: hardware register was not found\n");
226		- err = -ENODEV;
227		- goto err1;
228		- }
229		- if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
230		- printk(KERN_ERR "HIL: IOPORT region already used\n");
231		- err = -EIO;
232		- goto err1;
233		- }
234		-#endif
235		-
236	219	err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
237	220	if (err) {
238	221	printk(KERN_ERR "HIL: Can't get IRQ\n");
239		- goto err2;
	222	+ goto err1;
240	223	}
241	224
242	225	/* Turn on interrupts */
243	226
...	...	@@ -246,11 +229,9 @@
246	229	hil_dev.valid = 0; /* clear any pending data */
247	230	hil_do(HIL_READKBDSADR, NULL, 0);
248	231
249		- init_waitqueue_head(&hil_wait);
250		- wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
251		- if (!hil_dev.valid) {
	232	+ wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
	233	+ if (!hil_dev.valid)
252	234	printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
253		- }
254	235
255	236	c = hil_dev.c;
256	237	hil_dev.valid = 0;
...	...	@@ -268,7 +249,7 @@
268	249
269	250	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
270	251	if (hphilkeyb_keycode[i] != KEY_RESERVED)
271		- set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
	252	+ __set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
272	253
273	254	hil_dev.dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP);
274	255	hil_dev.dev->ledbit[0] = BIT_MASK(LED_NUML) \| BIT_MASK(LED_CAPSL) \|
275	256
276	257
277	258
278	259
279	260
280	261
281	262
282	263
283	264
284	265
...	...	@@ -287,34 +268,45 @@
287	268	err = input_register_device(hil_dev.dev);
288	269	if (err) {
289	270	printk(KERN_ERR "HIL: Can't register device\n");
290		- goto err3;
	271	+ goto err2;
291	272	}
	273	+
292	274	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
293	275	hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
294	276
295	277	return 0;
296	278
297		-err3:
	279	+err2:
298	280	hil_do(HIL_INTOFF, NULL, 0);
299		- disable_irq(HIL_IRQ);
300	281	free_irq(HIL_IRQ, hil_dev.dev_id);
301		-err2:
302		-#if defined(CONFIG_HP300)
303		- release_region(HILBASE + HIL_DATA, 2);
304	282	err1:
305		-#endif
306	283	input_free_device(hil_dev.dev);
307	284	hil_dev.dev = NULL;
308	285	return err;
309	286	}
310	287
	288	+static void __devexit hil_keyb_exit(void)
	289	+{
	290	+ if (HIL_IRQ)
	291	+ free_irq(HIL_IRQ, hil_dev.dev_id);
311	292
	293	+ /* Turn off interrupts */
	294	+ hil_do(HIL_INTOFF, NULL, 0);
	295	+
	296	+ input_unregister_device(hil_dev.dev);
	297	+ hil_dev.dev = NULL;
	298	+}
	299	+
312	300	#if defined(CONFIG_PARISC)
313		-static int __init
314		-hil_init_chip(struct parisc_device *dev)
	301	+static int __devinit hil_probe_chip(struct parisc_device *dev)
315	302	{
	303	+ /* Only allow one HIL keyboard */
	304	+ if (hil_dev.dev)
	305	+ return -ENODEV;
	306	+
316	307	if (!dev->irq) {
317		- printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
	308	+ printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
	309	+ (void *)dev->hpa.start);
318	310	return -ENODEV;
319	311	}
320	312
321	313
322	314
323	315
324	316
325	317
326	318
327	319
328	320
329	321
330	322
331	323
332	324
333	325
334	326
...	...	@@ -327,51 +319,79 @@
327	319	return hil_keyb_init();
328	320	}
329	321
	322	+static int __devexit hil_remove_chip(struct parisc_device *dev)
	323	+{
	324	+ hil_keyb_exit();
	325	+
	326	+ return 0;
	327	+}
	328	+
330	329	static struct parisc_device_id hil_tbl[] = {
331	330	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
332	331	{ 0, }
333	332	};
334	333
	334	+#if 0
	335	+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
335	336	MODULE_DEVICE_TABLE(parisc, hil_tbl);
	337	+#endif
336	338
337	339	static struct parisc_driver hil_driver = {
338		- .name = "hil",
339		- .id_table = hil_tbl,
340		- .probe = hil_init_chip,
	340	+ .name = "hil",
	341	+ .id_table = hil_tbl,
	342	+ .probe = hil_probe_chip,
	343	+ .remove = __devexit_p(hil_remove_chip),
341	344	};
342		-#endif /* CONFIG_PARISC */
343	345
344		-
345	346	static int __init hil_init(void)
346	347	{
347		-#if defined(CONFIG_PARISC)
348	348	return register_parisc_driver(&hil_driver);
349		-#else
350		- return hil_keyb_init();
351		-#endif
352	349	}
353	350
354		-
355	351	static void __exit hil_exit(void)
356	352	{
357		- if (HIL_IRQ) {
358		- disable_irq(HIL_IRQ);
359		- free_irq(HIL_IRQ, hil_dev.dev_id);
	353	+ unregister_parisc_driver(&hil_driver);
	354	+}
	355	+
	356	+#else /* !CONFIG_PARISC */
	357	+
	358	+static int __init hil_init(void)
	359	+{
	360	+ int error;
	361	+
	362	+ /* Only allow one HIL keyboard */
	363	+ if (hil_dev.dev)
	364	+ return -EBUSY;
	365	+
	366	+ if (!MACH_IS_HP300)
	367	+ return -ENODEV;
	368	+
	369	+ if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
	370	+ printk(KERN_ERR "HIL: hardware register was not found\n");
	371	+ return -ENODEV;
360	372	}
361	373
362		- /* Turn off interrupts */
363		- hil_do(HIL_INTOFF, NULL, 0);
	374	+ if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
	375	+ printk(KERN_ERR "HIL: IOPORT region already used\n");
	376	+ return -EIO;
	377	+ }
364	378
365		- input_unregister_device(hil_dev.dev);
	379	+ error = hil_keyb_init();
	380	+ if (error) {
	381	+ release_region(HILBASE + HIL_DATA, 2);
	382	+ return error;
	383	+ }
366	384
367		- hil_dev.dev = NULL;
	385	+ return 0;
	386	+}
368	387
369		-#if defined(CONFIG_PARISC)
370		- unregister_parisc_driver(&hil_driver);
371		-#else
372		- release_region(HILBASE+HIL_DATA, 2);
373		-#endif
	388	+static void __exit hil_exit(void)
	389	+{
	390	+ hil_keyb_exit();
	391	+ release_region(HILBASE + HIL_DATA, 2);
374	392	}
	393	+
	394	+#endif /* CONFIG_PARISC */
375	395
376	396	module_init(hil_init);
377	397	module_exit(hil_exit);
...	...	@@ -227,5 +227,28 @@
227	227	Say Y to include support for delivering PMU events via input
228	228	layer on NXP PCF50633.
229	229
	230	+config INPUT_GPIO_ROTARY_ENCODER
	231	+ tristate "Rotary encoders connected to GPIO pins"
	232	+ depends on GPIOLIB && GENERIC_GPIO
	233	+ help
	234	+ Say Y here to add support for rotary encoders connected to GPIO lines.
	235	+ Check file:Documentation/incput/rotary_encoder.txt for more
	236	+ information.
	237	+
	238	+ To compile this driver as a module, choose M here: the
	239	+ module will be called rotary_encoder.
	240	+
	241	+config INPUT_RB532_BUTTON
	242	+ tristate "Mikrotik Routerboard 532 button interface"
	243	+ depends on MIKROTIK_RB532
	244	+ depends on GPIOLIB && GENERIC_GPIO
	245	+ select INPUT_POLLDEV
	246	+ help
	247	+ Say Y here if you want support for the S1 button built into
	248	+ Mikrotik's Routerboard 532.
	249	+
	250	+ To compile this driver as a module, choose M here: the
	251	+ module will be called rb532_button.
	252	+
230	253	endif
...	...	@@ -4,22 +4,24 @@
4	4
5	5	# Each configuration option enables a list of files.
6	6
7		-obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
8		-obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
9		-obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
10		-obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
11		-obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
12		-obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
13		-obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
	7	+obj-$(CONFIG_INPUT_APANEL) += apanel.o
14	8	obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o
15	9	obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
16		-obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
17		-obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
18		-obj-$(CONFIG_INPUT_YEALINK) += yealink.o
	10	+obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
19	11	obj-$(CONFIG_INPUT_CM109) += cm109.o
	12	+obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
20	13	obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
21		-obj-$(CONFIG_INPUT_UINPUT) += uinput.o
22		-obj-$(CONFIG_INPUT_APANEL) += apanel.o
23		-obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
	14	+obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
	15	+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
	16	+obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
24	17	obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
	18	+obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
	19	+obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
	20	+obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
	21	+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
	22	+obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
	23	+obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
	24	+obj-$(CONFIG_INPUT_UINPUT) += uinput.o
	25	+obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
	26	+obj-$(CONFIG_INPUT_YEALINK) += yealink.o
...	...	@@ -31,12 +31,73 @@
31	31	* newly configured "channel".
32	32	*/
33	33
34		-static unsigned int channel_mask = 0xFFFF;
35		-module_param(channel_mask, uint, 0644);
	34	+enum {
	35	+ ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
	36	+ ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
	37	+};
	38	+
	39	+static int ati_remote2_set_mask(const char *val,
	40	+ struct kernel_param *kp, unsigned int max)
	41	+{
	42	+ unsigned long mask;
	43	+ int ret;
	44	+
	45	+ if (!val)
	46	+ return -EINVAL;
	47	+
	48	+ ret = strict_strtoul(val, 0, &mask);
	49	+ if (ret)
	50	+ return ret;
	51	+
	52	+ if (mask & ~max)
	53	+ return -EINVAL;
	54	+
	55	+ (unsigned int )kp->arg = mask;
	56	+
	57	+ return 0;
	58	+}
	59	+
	60	+static int ati_remote2_set_channel_mask(const char *val,
	61	+ struct kernel_param *kp)
	62	+{
	63	+ pr_debug("%s()\n", __func__);
	64	+
	65	+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
	66	+}
	67	+
	68	+static int ati_remote2_get_channel_mask(char buffer, struct kernel_param kp)
	69	+{
	70	+ pr_debug("%s()\n", __func__);
	71	+
	72	+ return sprintf(buffer, "0x%04x", (unsigned int )kp->arg);
	73	+}
	74	+
	75	+static int ati_remote2_set_mode_mask(const char val, struct kernel_param kp)
	76	+{
	77	+ pr_debug("%s()\n", __func__);
	78	+
	79	+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
	80	+}
	81	+
	82	+static int ati_remote2_get_mode_mask(char buffer, struct kernel_param kp)
	83	+{
	84	+ pr_debug("%s()\n", __func__);
	85	+
	86	+ return sprintf(buffer, "0x%02x", (unsigned int )kp->arg);
	87	+}
	88	+
	89	+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
	90	+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
	91	+#define param_set_channel_mask ati_remote2_set_channel_mask
	92	+#define param_get_channel_mask ati_remote2_get_channel_mask
	93	+module_param(channel_mask, channel_mask, 0644);
36	94	MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
37	95
38		-static unsigned int mode_mask = 0x1F;
39		-module_param(mode_mask, uint, 0644);
	96	+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
	97	+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
	98	+#define param_set_mode_mask ati_remote2_set_mode_mask
	99	+#define param_get_mode_mask ati_remote2_get_mode_mask
	100	+module_param(mode_mask, mode_mask, 0644);
40	101	MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
41	102
42	103	static struct usb_device_id ati_remote2_id_table[] = {
43	104
...	...	@@ -133,12 +194,18 @@
133	194	u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
134	195
135	196	unsigned int flags;
	197	+
	198	+ unsigned int channel_mask;
	199	+ unsigned int mode_mask;
136	200	};
137	201
138	202	static int ati_remote2_probe(struct usb_interface interface, const struct usb_device_id id);
139	203	static void ati_remote2_disconnect(struct usb_interface *interface);
140	204	static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
141	205	static int ati_remote2_resume(struct usb_interface *interface);
	206	+static int ati_remote2_reset_resume(struct usb_interface *interface);
	207	+static int ati_remote2_pre_reset(struct usb_interface *interface);
	208	+static int ati_remote2_post_reset(struct usb_interface *interface);
142	209
143	210	static struct usb_driver ati_remote2_driver = {
144	211	.name = "ati_remote2",
...	...	@@ -147,6 +214,9 @@
147	214	.id_table = ati_remote2_id_table,
148	215	.suspend = ati_remote2_suspend,
149	216	.resume = ati_remote2_resume,
	217	+ .reset_resume = ati_remote2_reset_resume,
	218	+ .pre_reset = ati_remote2_pre_reset,
	219	+ .post_reset = ati_remote2_post_reset,
150	220	.supports_autosuspend = 1,
151	221	};
152	222
...	...	@@ -238,7 +308,7 @@
238	308
239	309	channel = data[0] >> 4;
240	310
241		- if (!((1 << channel) & channel_mask))
	311	+ if (!((1 << channel) & ar2->channel_mask))
242	312	return;
243	313
244	314	mode = data[0] & 0x0F;
...	...	@@ -250,7 +320,7 @@
250	320	return;
251	321	}
252	322
253		- if (!((1 << mode) & mode_mask))
	323	+ if (!((1 << mode) & ar2->mode_mask))
254	324	return;
255	325
256	326	input_event(idev, EV_REL, REL_X, (s8) data[1]);
...	...	@@ -277,7 +347,7 @@
277	347
278	348	channel = data[0] >> 4;
279	349
280		- if (!((1 << channel) & channel_mask))
	350	+ if (!((1 << channel) & ar2->channel_mask))
281	351	return;
282	352
283	353	mode = data[0] & 0x0F;
...	...	@@ -305,7 +375,7 @@
305	375	ar2->mode = mode;
306	376	}
307	377
308		- if (!((1 << mode) & mode_mask))
	378	+ if (!((1 << mode) & ar2->mode_mask))
309	379	return;
310	380
311	381	index = ati_remote2_lookup(hw_code);
...	...	@@ -410,7 +480,7 @@
410	480	int index, mode;
411	481
412	482	mode = scancode >> 8;
413		- if (mode > ATI_REMOTE2_PC \|\| !((1 << mode) & mode_mask))
	483	+ if (mode > ATI_REMOTE2_PC \|\| !((1 << mode) & ar2->mode_mask))
414	484	return -EINVAL;
415	485
416	486	index = ati_remote2_lookup(scancode & 0xFF);
...	...	@@ -427,7 +497,7 @@
427	497	int index, mode, old_keycode;
428	498
429	499	mode = scancode >> 8;
430		- if (mode > ATI_REMOTE2_PC \|\| !((1 << mode) & mode_mask))
	500	+ if (mode > ATI_REMOTE2_PC \|\| !((1 << mode) & ar2->mode_mask))
431	501	return -EINVAL;
432	502
433	503	index = ati_remote2_lookup(scancode & 0xFF);
...	...	@@ -550,7 +620,7 @@
550	620	}
551	621	}
552	622
553		-static int ati_remote2_setup(struct ati_remote2 *ar2)
	623	+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
554	624	{
555	625	int r, i, channel;
556	626
...	...	@@ -565,8 +635,8 @@
565	635
566	636	channel = 0;
567	637	for (i = 0; i < 16; i++) {
568		- if ((1 << i) & channel_mask) {
569		- if (!(~(1 << i) & 0xFFFF & channel_mask))
	638	+ if ((1 << i) & ch_mask) {
	639	+ if (!(~(1 << i) & ch_mask))
570	640	channel = i + 1;
571	641	break;
572	642	}
...	...	@@ -585,6 +655,99 @@
585	655	return 0;
586	656	}
587	657
	658	+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
	659	+ struct device_attribute *attr,
	660	+ char *buf)
	661	+{
	662	+ struct usb_device *udev = to_usb_device(dev);
	663	+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
	664	+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
	665	+
	666	+ return sprintf(buf, "0x%04x\n", ar2->channel_mask);
	667	+}
	668	+
	669	+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
	670	+ struct device_attribute *attr,
	671	+ const char *buf, size_t count)
	672	+{
	673	+ struct usb_device *udev = to_usb_device(dev);
	674	+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
	675	+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
	676	+ unsigned long mask;
	677	+ int r;
	678	+
	679	+ if (strict_strtoul(buf, 0, &mask))
	680	+ return -EINVAL;
	681	+
	682	+ if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
	683	+ return -EINVAL;
	684	+
	685	+ r = usb_autopm_get_interface(ar2->intf[0]);
	686	+ if (r) {
	687	+ dev_err(&ar2->intf[0]->dev,
	688	+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
	689	+ return r;
	690	+ }
	691	+
	692	+ mutex_lock(&ati_remote2_mutex);
	693	+
	694	+ if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
	695	+ ar2->channel_mask = mask;
	696	+
	697	+ mutex_unlock(&ati_remote2_mutex);
	698	+
	699	+ usb_autopm_put_interface(ar2->intf[0]);
	700	+
	701	+ return count;
	702	+}
	703	+
	704	+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
	705	+ struct device_attribute *attr,
	706	+ char *buf)
	707	+{
	708	+ struct usb_device *udev = to_usb_device(dev);
	709	+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
	710	+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
	711	+
	712	+ return sprintf(buf, "0x%02x\n", ar2->mode_mask);
	713	+}
	714	+
	715	+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
	716	+ struct device_attribute *attr,
	717	+ const char *buf, size_t count)
	718	+{
	719	+ struct usb_device *udev = to_usb_device(dev);
	720	+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
	721	+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
	722	+ unsigned long mask;
	723	+
	724	+ if (strict_strtoul(buf, 0, &mask))
	725	+ return -EINVAL;
	726	+
	727	+ if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
	728	+ return -EINVAL;
	729	+
	730	+ ar2->mode_mask = mask;
	731	+
	732	+ return count;
	733	+}
	734	+
	735	+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
	736	+ ati_remote2_store_channel_mask);
	737	+
	738	+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
	739	+ ati_remote2_store_mode_mask);
	740	+
	741	+static struct attribute *ati_remote2_attrs[] = {
	742	+ &dev_attr_channel_mask.attr,
	743	+ &dev_attr_mode_mask.attr,
	744	+ NULL,
	745	+};
	746	+
	747	+static struct attribute_group ati_remote2_attr_group = {
	748	+ .attrs = ati_remote2_attrs,
	749	+};
	750	+
588	751	static int ati_remote2_probe(struct usb_interface interface, const struct usb_device_id id)
589	752	{
590	753	struct usb_device *udev = interface_to_usbdev(interface);
...	...	@@ -615,7 +778,10 @@
615	778	if (r)
616	779	goto fail2;
617	780
618		- r = ati_remote2_setup(ar2);
	781	+ ar2->channel_mask = channel_mask;
	782	+ ar2->mode_mask = mode_mask;
	783	+
	784	+ r = ati_remote2_setup(ar2, ar2->channel_mask);
619	785	if (r)
620	786	goto fail2;
621	787
622	788
623	789
624	790
...	...	@@ -624,19 +790,24 @@
624	790
625	791	strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
626	792
627		- r = ati_remote2_input_init(ar2);
	793	+ r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
628	794	if (r)
629	795	goto fail2;
630	796
	797	+ r = ati_remote2_input_init(ar2);
	798	+ if (r)
	799	+ goto fail3;
	800	+
631	801	usb_set_intfdata(interface, ar2);
632	802
633	803	interface->needs_remote_wakeup = 1;
634	804
635	805	return 0;
636	806
	807	+ fail3:
	808	+ sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
637	809	fail2:
638	810	ati_remote2_urb_cleanup(ar2);
639		-
640	811	usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
641	812	fail1:
642	813	kfree(ar2);
...	...	@@ -657,6 +828,8 @@
657	828
658	829	input_unregister_device(ar2->idev);
659	830
	831	+ sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
	832	+
660	833	ati_remote2_urb_cleanup(ar2);
661	834
662	835	usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
...	...	@@ -709,6 +882,78 @@
709	882
710	883	if (!r)
711	884	ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
	885	+
	886	+ mutex_unlock(&ati_remote2_mutex);
	887	+
	888	+ return r;
	889	+}
	890	+
	891	+static int ati_remote2_reset_resume(struct usb_interface *interface)
	892	+{
	893	+ struct ati_remote2 *ar2;
	894	+ struct usb_host_interface *alt = interface->cur_altsetting;
	895	+ int r = 0;
	896	+
	897	+ if (alt->desc.bInterfaceNumber)
	898	+ return 0;
	899	+
	900	+ ar2 = usb_get_intfdata(interface);
	901	+
	902	+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
	903	+
	904	+ mutex_lock(&ati_remote2_mutex);
	905	+
	906	+ r = ati_remote2_setup(ar2, ar2->channel_mask);
	907	+ if (r)
	908	+ goto out;
	909	+
	910	+ if (ar2->flags & ATI_REMOTE2_OPENED)
	911	+ r = ati_remote2_submit_urbs(ar2);
	912	+
	913	+ if (!r)
	914	+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
	915	+
	916	+ out:
	917	+ mutex_unlock(&ati_remote2_mutex);
	918	+
	919	+ return r;
	920	+}
	921	+
	922	+static int ati_remote2_pre_reset(struct usb_interface *interface)
	923	+{
	924	+ struct ati_remote2 *ar2;
	925	+ struct usb_host_interface *alt = interface->cur_altsetting;
	926	+
	927	+ if (alt->desc.bInterfaceNumber)
	928	+ return 0;
	929	+
	930	+ ar2 = usb_get_intfdata(interface);
	931	+
	932	+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
	933	+
	934	+ mutex_lock(&ati_remote2_mutex);
	935	+
	936	+ if (ar2->flags == ATI_REMOTE2_OPENED)
	937	+ ati_remote2_kill_urbs(ar2);
	938	+
	939	+ return 0;
	940	+}
	941	+
	942	+static int ati_remote2_post_reset(struct usb_interface *interface)
	943	+{
	944	+ struct ati_remote2 *ar2;
	945	+ struct usb_host_interface *alt = interface->cur_altsetting;
	946	+ int r = 0;
	947	+
	948	+ if (alt->desc.bInterfaceNumber)
	949	+ return 0;
	950	+
	951	+ ar2 = usb_get_intfdata(interface);
	952	+
	953	+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
	954	+
	955	+ if (ar2->flags == ATI_REMOTE2_OPENED)
	956	+ r = ati_remote2_submit_urbs(ar2);
712	957
713	958	mutex_unlock(&ati_remote2_mutex);
714	959