X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finput%2Fmisc%2Fcobalt_btns.c;h=2adf9cb265da69fd67b6d1b8bec3fa3841e95ec2;hb=b2576e1d4408e134e2188c967b1f28af39cd79d4;hp=064b07936019c1f6465eb6aa1c1391666734a653;hpb=15700770ef7c5d12e2f1659d2ddbeb3f658d9f37;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index 064b0793601..2adf9cb265d 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -1,7 +1,7 @@
 /*
  *  Cobalt button interface driver.
  *
- *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2007-2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
  *
  *  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
@@ -15,7 +15,7 @@
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include <linux/init.h>
 #include <linux/input-polldev.h>
@@ -27,55 +27,48 @@
 #define BUTTONS_COUNT_THRESHOLD	3
 #define BUTTONS_STATUS_MASK	0xfe000000
 
+static const unsigned short cobalt_map[] = {
+	KEY_RESERVED,
+	KEY_RESTART,
+	KEY_LEFT,
+	KEY_UP,
+	KEY_DOWN,
+	KEY_RIGHT,
+	KEY_ENTER,
+	KEY_SELECT
+};
+
 struct buttons_dev {
 	struct input_polled_dev *poll_dev;
+	unsigned short keymap[ARRAY_SIZE(cobalt_map)];
+	int count[ARRAY_SIZE(cobalt_map)];
 	void __iomem *reg;
 };
 
-struct buttons_map {
-	uint32_t mask;
-	int keycode;
-	int count;
-};
-
-static struct buttons_map buttons_map[] = {
-	{ 0x02000000, KEY_RESTART, },
-	{ 0x04000000, KEY_LEFT, },
-	{ 0x08000000, KEY_UP, },
-	{ 0x10000000, KEY_DOWN, },
-	{ 0x20000000, KEY_RIGHT, },
-	{ 0x40000000, KEY_ENTER, },
-	{ 0x80000000, KEY_SELECT, },
-};
-
 static void handle_buttons(struct input_polled_dev *dev)
 {
-	struct buttons_map *button = buttons_map;
 	struct buttons_dev *bdev = dev->private;
 	struct input_dev *input = dev->input;
 	uint32_t status;
 	int i;
 
-	status = readl(bdev->reg);
-	status = ~status & BUTTONS_STATUS_MASK;
+	status = ~readl(bdev->reg) >> 24;
 
-	for (i = 0; i < ARRAY_SIZE(buttons_map); i++) {
-		if (status & button->mask) {
-			button->count++;
+	for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
+		if (status & (1U << i)) {
+			if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
+				input_event(input, EV_MSC, MSC_SCAN, i);
+				input_report_key(input, bdev->keymap[i], 1);
+				input_sync(input);
+			}
 		} else {
-			if (button->count >= BUTTONS_COUNT_THRESHOLD) {
-				input_report_key(input, button->keycode, 0);
+			if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
+				input_event(input, EV_MSC, MSC_SCAN, i);
+				input_report_key(input, bdev->keymap[i], 0);
 				input_sync(input);
 			}
-			button->count = 0;
+			bdev->count[i] = 0;
 		}
-
-		if (button->count == BUTTONS_COUNT_THRESHOLD) {
-			input_report_key(input, button->keycode, 1);
-			input_sync(input);
-		}
-
-		button++;
 	}
 }
 
@@ -94,6 +87,8 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
 		goto err_free_mem;
 	}
 
+	memcpy(bdev->keymap, cobalt_map, sizeof(bdev->keymap));
+
 	poll_dev->private = bdev;
 	poll_dev->poll = handle_buttons;
 	poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
@@ -102,13 +97,17 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
 	input->name = "Cobalt buttons";
 	input->phys = "cobalt/input0";
 	input->id.bustype = BUS_HOST;
-	input->cdev.dev = &pdev->dev;
+	input->dev.parent = &pdev->dev;
 
-	input->evbit[0] = BIT(EV_KEY);
-	for (i = 0; i < ARRAY_SIZE(buttons_map); i++) {
-		set_bit(buttons_map[i].keycode, input->keybit);
-		buttons_map[i].count = 0;
-	}
+	input->keycode = bdev->keymap;
+	input->keycodemax = ARRAY_SIZE(bdev->keymap);
+	input->keycodesize = sizeof(unsigned short);
+
+	input_set_capability(input, EV_MSC, MSC_SCAN);
+	__set_bit(EV_KEY, input->evbit);
+	for (i = 0; i < ARRAY_SIZE(cobalt_map); i++)
+		__set_bit(bdev->keymap[i], input->keybit);
+	__clear_bit(KEY_RESERVED, input->keybit);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -149,6 +148,12 @@ static int __devexit cobalt_buttons_remove(struct platform_device *pdev)
 	return 0;
 }
 
+MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
+MODULE_DESCRIPTION("Cobalt button interface driver");
+MODULE_LICENSE("GPL");
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:Cobalt buttons");
+
 static struct platform_driver cobalt_buttons_driver = {
 	.probe	= cobalt_buttons_probe,
 	.remove	= __devexit_p(cobalt_buttons_remove),