Input: m68kspkr - register with driver core as a platfrom device (1f75e6bd) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/input/misc/m68kspkr.c

+85 −17

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include <linux/module.h>
		#include <linux/init.h>
		#include <linux/input.h>
		#include <linux/platform_device.h>
		#include <asm/machdep.h>
		#include <asm/io.h>

		@@ -24,7 +25,7 @@ MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
		MODULE_DESCRIPTION("m68k beeper driver");
		MODULE_LICENSE("GPL");

		static struct input_dev *m68kspkr_dev;
		static struct platform_device *m68kspkr_platform_device;

		static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
		{
		@@ -47,36 +48,103 @@ static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int
		return 0;
		}

		static int __devinit m68kspkr_probe(struct platform_device *dev)
		{
		struct input_dev *input_dev;
		int err;

		input_dev = input_allocate_device();
		if (!input_dev)
		return -ENOMEM;

		input_dev->name = "m68k beeper";
		input_dev->phys = "m68k/generic";
		input_dev->id.bustype = BUS_HOST;
		input_dev->id.vendor = 0x001f;
		input_dev->id.product = 0x0001;
		input_dev->id.version = 0x0100;
		input_dev->cdev.dev = &dev->dev;

		input_dev->evbit[0] = BIT(EV_SND);
		input_dev->sndbit[0] = BIT(SND_BELL) \| BIT(SND_TONE);
		input_dev->event = m68kspkr_event;

		err = input_register_device(input_dev);
		if (err) {
		input_free_device(input_dev);
		return err;
		}

		platform_set_drvdata(dev, input_dev);

		return 0;
		}

		static int __devexit m68kspkr_remove(struct platform_device *dev)
		{
		struct input_dev *input_dev = platform_get_drvdata(dev);

		input_unregister_device(input_dev);
		platform_set_drvdata(dev, NULL);
		/* turn off the speaker */
		m68kspkr_event(NULL, EV_SND, SND_BELL, 0);

		return 0;
		}

		static void m68kspkr_shutdown(struct platform_device *dev)
		{
		/* turn off the speaker */
		m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
		}

		static struct platform_driver m68kspkr_platform_driver = {
		.driver = {
		.name = "m68kspkr",
		.owner = THIS_MODULE,
		},
		.probe = m68kspkr_probe,
		.remove = __devexit_p(m68kspkr_remove),
		.shutdown = m68kspkr_shutdown,
		};

		static int __init m68kspkr_init(void)
		{
		int err;

		if (!mach_beep) {
		printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
		return -ENODEV;
		}

		m68kspkr_dev = input_allocate_device();
		if (!m68kspkr_dev)
		return -ENOMEM;

		m68kspkr_dev->name = "m68k beeper";
		m68kspkr_dev->phys = "m68k/generic";
		m68kspkr_dev->id.bustype = BUS_HOST;
		m68kspkr_dev->id.vendor = 0x001f;
		m68kspkr_dev->id.product = 0x0001;
		m68kspkr_dev->id.version = 0x0100;
		err = platform_driver_register(&m68kspkr_platform_driver);
		if (err)
		return err;

		m68kspkr_dev->evbit[0] = BIT(EV_SND);
		m68kspkr_dev->sndbit[0] = BIT(SND_BELL) \| BIT(SND_TONE);
		m68kspkr_dev->event = m68kspkr_event;
		m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
		if (!m68kspkr_platform_device) {
		err = -ENOMEM;
		goto err_unregister_driver;
		}

		input_register_device(m68kspkr_dev);
		err = platform_device_add(m68kspkr_platform_device);
		if (err)
		goto err_free_device;

		return 0;

		err_free_device:
		platform_device_put(m68kspkr_platform_device);
		err_unregister_driver:
		platform_driver_unregister(&m68kspkr_platform_driver);

		return err;
		}

		static void __exit m68kspkr_exit(void)
		{
		input_unregister_device(m68kspkr_dev);
		platform_device_unregister(m68kspkr_platform_device);
		platform_driver_unregister(&m68kspkr_platform_driver);
		}

		module_init(m68kspkr_init);