Input: pcspkr - register with driver core as a platfrom device
Signed-off-by: Dmitry Torokhov <[email protected]>
---
drivers/input/misc/pcspkr.c | 86 ++++++++++++++++++++++++++++++++++++++++----
1 files changed, 80 insertions(+), 6 deletions(-)
Index: work/drivers/input/misc/pcspkr.c
===================================================================
--- work.orig/drivers/input/misc/pcspkr.c
+++ work/drivers/input/misc/pcspkr.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
+#include <linux/platform_device.h>
#include <asm/8253pit.h>
#include <asm/io.h>
@@ -23,8 +24,7 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@u
MODULE_DESCRIPTION("PC Speaker beeper driver");
MODULE_LICENSE("GPL");
-static struct input_dev *pcspkr_dev;
-
+static struct platform_device *pcspkr_platform_device;
static DEFINE_SPINLOCK(i8253_beep_lock);
static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
@@ -64,8 +64,11 @@ static int pcspkr_event(struct input_dev
return 0;
}
-static int __init pcspkr_init(void)
+static int __devinit pcspkr_probe(struct platform_device *dev)
{
+ struct input_dev *pcspkr_dev;
+ int err;
+
pcspkr_dev = input_allocate_device();
if (!pcspkr_dev)
return -ENOMEM;
@@ -76,21 +79,92 @@ static int __init pcspkr_init(void)
pcspkr_dev->id.vendor = 0x001f;
pcspkr_dev->id.product = 0x0001;
pcspkr_dev->id.version = 0x0100;
+ pcspkr_dev->cdev.dev = &dev->dev;
pcspkr_dev->evbit[0] = BIT(EV_SND);
pcspkr_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
pcspkr_dev->event = pcspkr_event;
- input_register_device(pcspkr_dev);
+ err = input_register_device(pcspkr_dev);
+ if (err) {
+ input_free_device(pcspkr_dev);
+ return err;
+ }
+
+ platform_set_drvdata(dev, pcspkr_dev);
return 0;
}
-static void __exit pcspkr_exit(void)
+static int __devexit pcspkr_remove(struct platform_device *dev)
{
- input_unregister_device(pcspkr_dev);
+ struct input_dev *pcspkr_dev = platform_get_drvdata(dev);
+
+ input_unregister_device(pcspkr_dev);
+ platform_set_drvdata(dev, NULL);
/* turn off the speaker */
pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static int pcspkr_suspend(struct platform_device *dev, pm_message_t state)
+{
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static void pcspkr_shutdown(struct platform_device *dev)
+{
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static struct platform_driver pcspkr_platform_driver = {
+ .driver = {
+ .name = "pcspkr",
+ .owner = THIS_MODULE,
+ },
+ .probe = pcspkr_probe,
+ .remove = __devexit_p(pcspkr_remove),
+ .suspend = pcspkr_suspend,
+ .shutdown = pcspkr_shutdown,
+};
+
+
+static int __init pcspkr_init(void)
+{
+ int err;
+
+ err = platform_driver_register(&pcspkr_platform_driver);
+ if (err)
+ return err;
+
+ pcspkr_platform_device = platform_device_alloc("pcspkr", -1);
+ if (!pcspkr_platform_device) {
+ err = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ err = platform_device_add(pcspkr_platform_device);
+ if (err)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(pcspkr_platform_device);
+ err_unregister_driver:
+ platform_driver_unregister(&pcspkr_platform_driver);
+
+ return err;
+}
+
+static void __exit pcspkr_exit(void)
+{
+ platform_device_unregister(pcspkr_platform_device);
+ platform_driver_unregister(&pcspkr_platform_driver);
}
module_init(pcspkr_init);
-
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