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Convert touchscreen to input_allocate_device

PATCH New Dirk Behme 1 participant 1 message Dec 4, 2005 Input drivers

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Dirk Behme

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PATCH 1/1 Convert touchscreen to input_allocate_device

ARM: OMAP: Convert touchscreen to input_allocate_device() to remove:

input: device omap_ts is statically allocated, will not register Please convert to input_allocate_device() or contact [email protected]

ARM: OMAP: Check in omap_ts_handler() if timer is still running. Delete it if necessary. Else we will get Oops "kernel BUG at include/linux/timer.h:83!"

Signed-off-by Dirk Behme <dirk.behme_at_de.bosch.com>
drivers/input/touchscreen/omap/omap_ts.c renamed from drivers/input/touchscreen/omap/omap_ts.c_orig +22 -19
@@ -65,10 +65,10 @@ static int omap_ts_read(void)
 
 	ts_omap.dev->read(data);
 
-	input_report_abs(&(ts_omap.inputdevice), ABS_X, data[0]);
-	input_report_abs(&(ts_omap.inputdevice), ABS_Y, data[1]);
-	input_report_abs(&(ts_omap.inputdevice), ABS_PRESSURE, data[2]);
-	input_sync(&(ts_omap.inputdevice));
+	input_report_abs(ts_omap.inputdevice, ABS_X, data[0]);
+	input_report_abs(ts_omap.inputdevice, ABS_Y, data[1]);
+	input_report_abs(ts_omap.inputdevice, ABS_PRESSURE, data[2]);
+	input_sync(ts_omap.inputdevice);
 
 	DEBUG_TS("omap_ts_read: read x=%d,y=%d,p=%d\n", data[0], data[1],
 		 data[2]);

@@ -85,7 +85,7 @@ static void omap_ts_timer(unsigned long 
 	if (!ts_omap.dev->penup()) {
 		if (!ts_omap.touched) {
 			DEBUG_TS("omap_ts_timer: pen down\n");
-			input_report_key(&(ts_omap.inputdevice), BTN_TOUCH, 1);
+			input_report_key(ts_omap.inputdevice, BTN_TOUCH, 1);
 		}
 		ts_omap.touched = 1;
 		omap_ts_read();

@@ -95,12 +95,12 @@ static void omap_ts_timer(unsigned long 
 		if (ts_omap.touched) {
 			DEBUG_TS("omap_ts_timer: pen up\n");
 			ts_omap.touched = 0;
-			input_report_abs(&(ts_omap.inputdevice), ABS_X, 0);
-			input_report_abs(&(ts_omap.inputdevice), ABS_Y, 0);
-			input_report_abs(&(ts_omap.inputdevice), ABS_PRESSURE,
+			input_report_abs(ts_omap.inputdevice, ABS_X, 0);
+			input_report_abs(ts_omap.inputdevice, ABS_Y, 0);
+			input_report_abs(ts_omap.inputdevice, ABS_PRESSURE,
 					 0);
-			input_sync(&(ts_omap.inputdevice));
-			input_report_key(&(ts_omap.inputdevice), BTN_TOUCH, 0);
+			input_sync(ts_omap.inputdevice);
+			input_report_key(ts_omap.inputdevice, BTN_TOUCH, 0);
 		}
 		if (!ts_omap.irq_enabled) {
 			ts_omap.irq_enabled = 1;

@@ -119,7 +119,10 @@ static irqreturn_t omap_ts_handler(int i
 		ts_omap.irq_enabled = 0;
 		disable_irq(irq);
 	}
-	// restart acquire
+	// check for still pending timer, delete it if neccessary
+        if(timer_pending(&(ts_omap.ts_timer)))
+		del_timer(&(ts_omap.ts_timer));
+        // restart acquire
 	ts_omap.ts_timer.expires = jiffies + HZ / 100;
 	add_timer(&(ts_omap.ts_timer));
 

@@ -168,14 +171,14 @@ static int __init omap_ts_probe(struct p
 		return -EINVAL;
 	}
 
-	init_input_dev(&(ts_omap.inputdevice));
-	ts_omap.inputdevice.name = OMAP_TS_NAME;
-	ts_omap.inputdevice.dev = &pdev->dev;
-	ts_omap.inputdevice.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-	ts_omap.inputdevice.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
-	ts_omap.inputdevice.absbit[0] =
+	ts_omap.inputdevice = input_allocate_device();
+	ts_omap.inputdevice->name = OMAP_TS_NAME;
+	ts_omap.inputdevice->dev = &pdev->dev;
+	ts_omap.inputdevice->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+	ts_omap.inputdevice->keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
+	ts_omap.inputdevice->absbit[0] =
 	    BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
-	input_register_device(&(ts_omap.inputdevice));
+	input_register_device(ts_omap.inputdevice);
 
 	ts_omap.dev->enable();
 

@@ -187,7 +190,7 @@ static int __init omap_ts_probe(struct p
 static int omap_ts_remove(struct platform_device *pdev)
 {
 	ts_omap.dev->disable();
-	input_unregister_device(&ts_omap.inputdevice);
+	input_unregister_device(ts_omap.inputdevice);
 	if (ts_omap.irq != -1)
 		free_irq(ts_omap.irq, &ts_omap);
drivers/input/touchscreen/omap/omap_ts.h renamed from drivers/input/touchscreen/omap/omap_ts.h_orig +1 -1
@@ -42,7 +42,7 @@ struct ts_device {
 };
 
 struct omap_ts_t{
-	struct input_dev inputdevice;
+	struct input_dev * inputdevice;
 	struct timer_list ts_timer;      // Timer for triggering acquisitions
 	int touched;
 	int irq;