X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=drivers%2Finput%2Fkeyboard%2Fgpio_keys.c;h=e2a3293bc67ed37b66949747de99d0e3d4d1dfd9;hb=b981d8b3f5e008ff10d993be633ad00564fc22cd;hp=7ad479e4e3b38678ae4de0640887716409166765;hpb=920841d8d1d61bc12b43f95a579a5374f6d98f81;p=deliverable%2Flinux.git

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 7ad479e4e3b3..e2a3293bc67e 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -22,12 +22,9 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/input.h>
-#include <linux/irq.h>
-
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/hardware.h>
+#include <linux/gpio_keys.h>
 
-#include <asm/hardware/gpio_keys.h>
+#include <asm/gpio.h>
 
 static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
 {
@@ -37,11 +34,14 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
 	struct input_dev *input = platform_get_drvdata(pdev);
 
 	for (i = 0; i < pdata->nbuttons; i++) {
-		int gpio = pdata->buttons[i].gpio;
-		if (irq == IRQ_GPIO(gpio)) {
-			int state = ((GPLR(gpio) & GPIO_bit(gpio)) ? 1 : 0) ^ (pdata->buttons[i].active_low);
+		struct gpio_keys_button *button = &pdata->buttons[i];
+		int gpio = button->gpio;
 
-			input_report_key(input, pdata->buttons[i].keycode, state);
+		if (irq == gpio_to_irq(gpio)) {
+			unsigned int type = button->type ?: EV_KEY;
+			int state = (gpio_get_value(gpio) ? 1 : 0) ^ button->active_low;
+
+			input_event(input, type, button->code, !!state);
 			input_sync(input);
 		}
 	}
@@ -54,6 +54,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 	struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
 	struct input_dev *input;
 	int i, error;
+	int wakeup = 0;
 
 	input = input_allocate_device();
 	if (!input)
@@ -65,8 +66,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 
 	input->name = pdev->name;
 	input->phys = "gpio-keys/input0";
-	input->cdev.dev = &pdev->dev;
-	input->private = pdata;
+	input->dev.parent = &pdev->dev;
 
 	input->id.bustype = BUS_HOST;
 	input->id.vendor = 0x0001;
@@ -74,32 +74,55 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 	input->id.version = 0x0100;
 
 	for (i = 0; i < pdata->nbuttons; i++) {
-		int code = pdata->buttons[i].keycode;
-		int irq = IRQ_GPIO(pdata->buttons[i].gpio);
+		struct gpio_keys_button *button = &pdata->buttons[i];
+		int irq = gpio_to_irq(button->gpio);
+		unsigned int type = button->type ?: EV_KEY;
+
+		if (irq < 0) {
+			error = irq;
+			printk(KERN_ERR
+				"gpio-keys: "
+				"Unable to get irq number for GPIO %d,"
+				"error %d\n",
+				button->gpio, error);
+			goto fail;
+		}
 
-		set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
-		error = request_irq(irq, gpio_keys_isr, IRQF_SAMPLE_RANDOM,
-				     pdata->buttons[i].desc ? pdata->buttons[i].desc : "gpio_keys",
-				     pdev);
+		error = request_irq(irq, gpio_keys_isr,
+				    IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_RISING |
+					IRQF_TRIGGER_FALLING,
+				    button->desc ? button->desc : "gpio_keys",
+				    pdev);
 		if (error) {
-			printk(KERN_ERR "gpio-keys: unable to claim irq %d; error %d\n", irq, ret);
+			printk(KERN_ERR
+				"gpio-keys: Unable to claim irq %d; error %d\n",
+				irq, error);
 			goto fail;
 		}
-		set_bit(code, input->keybit);
+
+		if (button->wakeup)
+			wakeup = 1;
+
+		input_set_capability(input, type, button->code);
 	}
 
 	error = input_register_device(input);
 	if (error) {
-		printk(KERN_ERR "Unable to register gpio-keys input device\n");
+		printk(KERN_ERR
+			"gpio-keys: Unable to register input device, "
+			"error: %d\n", error);
 		goto fail;
 	}
 
+	device_init_wakeup(&pdev->dev, wakeup);
+
 	return 0;
 
  fail:
-	for (i = i - 1; i >= 0; i--)
-		free_irq(IRQ_GPIO(pdata->buttons[i].gpio), pdev);
+	while (--i >= 0)
+		free_irq(gpio_to_irq(pdata->buttons[i].gpio), pdev);
 
+	platform_set_drvdata(pdev, NULL);
 	input_free_device(input);
 
 	return error;
@@ -111,8 +134,10 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
 	struct input_dev *input = platform_get_drvdata(pdev);
 	int i;
 
+	device_init_wakeup(&pdev->dev, 0);
+
 	for (i = 0; i < pdata->nbuttons; i++) {
-		int irq = IRQ_GPIO(pdata->buttons[i].gpio);
+		int irq = gpio_to_irq(pdata->buttons[i].gpio);
 		free_irq(irq, pdev);
 	}
 
@@ -121,9 +146,53 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
 	return 0;
 }
 
+
+#ifdef CONFIG_PM
+static int gpio_keys_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
+	int i;
+
+	if (device_may_wakeup(&pdev->dev)) {
+		for (i = 0; i < pdata->nbuttons; i++) {
+			struct gpio_keys_button *button = &pdata->buttons[i];
+			if (button->wakeup) {
+				int irq = gpio_to_irq(button->gpio);
+				enable_irq_wake(irq);
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int gpio_keys_resume(struct platform_device *pdev)
+{
+	struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
+	int i;
+
+	if (device_may_wakeup(&pdev->dev)) {
+		for (i = 0; i < pdata->nbuttons; i++) {
+			struct gpio_keys_button *button = &pdata->buttons[i];
+			if (button->wakeup) {
+				int irq = gpio_to_irq(button->gpio);
+				disable_irq_wake(irq);
+			}
+		}
+	}
+
+	return 0;
+}
+#else
+#define gpio_keys_suspend	NULL
+#define gpio_keys_resume	NULL
+#endif
+
 struct platform_driver gpio_keys_device_driver = {
 	.probe		= gpio_keys_probe,
 	.remove		= __devexit_p(gpio_keys_remove),
+	.suspend	= gpio_keys_suspend,
+	.resume		= gpio_keys_resume,
 	.driver		= {
 		.name	= "gpio-keys",
 	}