Input: sparcspkr - register with driver core as a platfrom device

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 105 insertions, 57 deletions

diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index 29d97b12be7a..f0fd2c4740f1 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/input.h>
+#include <linux/platform_device.h>
 
 #include <asm/io.h>
 #include <asm/ebus.h>
@@ -20,22 +21,10 @@ MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
 MODULE_DESCRIPTION("Sparc Speaker beeper driver");
 MODULE_LICENSE("GPL");
 
+const char *beep_name;
 static unsigned long beep_iobase;
-static struct input_dev *sparcspkr_dev;
-
-DEFINE_SPINLOCK(beep_lock);
-
-static void __init init_sparcspkr_struct(void)
-{
-        sparcspkr_dev->evbit[0] = BIT(EV_SND);
-        sparcspkr_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
-
-        sparcspkr_dev->phys = "sparc/input0";
-        sparcspkr_dev->id.bustype = BUS_ISA;
-        sparcspkr_dev->id.vendor = 0x001f;
-        sparcspkr_dev->id.product = 0x0001;
-        sparcspkr_dev->id.version = 0x0100;
-}
+static int (*beep_event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+static DEFINE_SPINLOCK(beep_lock);
 
 static int ebus_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {
@@ -59,39 +48,16 @@ static int ebus_spkr_event(struct input_dev *dev, unsigned int type, unsigned in
         /* EBUS speaker only has on/off state, the frequency does not
          * appear to be programmable.
          */
-        if (count) {
-                if (beep_iobase & 0x2UL)
-                        outb(1, beep_iobase);
-                else
-                        outl(1, beep_iobase);
-        } else {
-                if (beep_iobase & 0x2UL)
-                        outb(0, beep_iobase);
-                else
-                        outl(0, beep_iobase);
-        }
+        if (beep_iobase & 0x2UL)
+                outb(!!count, beep_iobase);
+        else
+                outl(!!count, beep_iobase);
 
         spin_unlock_irqrestore(&beep_lock, flags);
 
         return 0;
 }
 
-static int __init init_ebus_beep(struct linux_ebus_device *edev)
-{
-        beep_iobase = edev->resource[0].start;
-
-        sparcspkr_dev = input_allocate_device();
-        if (!sparcspkr_dev)
-                return -ENOMEM;
-
-        sparcspkr_dev->name = "Sparc EBUS Speaker";
-        sparcspkr_dev->event = ebus_spkr_event;
-
-        input_register_device(sparcspkr_dev);
-
-        return 0;
-}
-
 #ifdef CONFIG_SPARC64
 static int isa_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {
@@ -129,30 +95,103 @@ static int isa_spkr_event(struct input_dev *dev, unsigned int type, unsigned int
 
         return 0;
 }
+#endif
 
-static int __init init_isa_beep(struct sparc_isa_device *isa_dev)
+static int __devinit sparcspkr_probe(struct platform_device *dev)
 {
-        beep_iobase = isa_dev->resource.start;
+        struct input_dev *input_dev;
+        int error;
 
-        sparcspkr_dev = input_allocate_device();
-        if (!sparcspkr_dev)
+        input_dev = input_allocate_device();
+        if (!input_dev)
                 return -ENOMEM;
 
-        init_sparcspkr_struct();
+        input_dev->name = beep_name;
+        input_dev->phys = "sparc/input0";
+        input_dev->id.bustype = BUS_ISA;
+        input_dev->id.vendor = 0x001f;
+        input_dev->id.product = 0x0001;
+        input_dev->id.version = 0x0100;
+        input_dev->cdev.dev = &dev->dev;
 
-        sparcspkr_dev->name = "Sparc ISA Speaker";
-        sparcspkr_dev->event = isa_spkr_event;
+        input_dev->evbit[0] = BIT(EV_SND);
+        input_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
 
-        input_register_device(sparcspkr_dev);
+        input_dev->event = beep_event;
+
+        error = input_register_device(input_dev);
+        if (error) {
+                input_free_device(input_dev);
+                return error;
+        }
+
+        platform_set_drvdata(dev, input_dev);
 
         return 0;
 }
-#endif
+
+static int __devexit sparcspkr_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 */
+        beep_event(NULL, EV_SND, SND_BELL, 0);
+
+        return 0;
+}
+
+static void sparcspkr_shutdown(struct platform_device *dev)
+{
+        /* turn off the speaker */
+        beep_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static struct platform_driver sparcspkr_platform_driver = {
+        .driver         = {
+                .name   = "sparcspkr",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = sparcspkr_probe,
+        .remove         = __devexit_p(sparcspkr_remove),
+        .shutdown       = sparcspkr_shutdown,
+};
+
+static struct platform_device *sparcspkr_platform_device;
+
+static int __init sparcspkr_drv_init(void)
+{
+        int error;
+
+        error = platform_driver_register(&sparcspkr_platform_driver);
+        if (error)
+                return error;
+
+        sparcspkr_platform_device = platform_device_alloc("sparcspkr", -1);
+        if (!sparcspkr_platform_device) {
+                error = -ENOMEM;
+                goto err_unregister_driver;
+        }
+
+        error = platform_device_add(sparcspkr_platform_device);
+        if (error)
+                goto err_free_device;
+
+        return 0;
+
+ err_free_device:
+        platform_device_put(sparcspkr_platform_device);
+ err_unregister_driver:
+        platform_driver_unregister(&sparcspkr_platform_driver);
+
+        return error;
+}
 
 static int __init sparcspkr_init(void)
 {
         struct linux_ebus *ebus;
-        struct linux_ebus_device *edev = NULL;
+        struct linux_ebus_device *edev;
 #ifdef CONFIG_SPARC64
         struct sparc_isa_bridge *isa_br;
         struct sparc_isa_device *isa_dev;
@@ -160,8 +199,12 @@ static int __init sparcspkr_init(void)
 
         for_each_ebus(ebus) {
                 for_each_ebusdev(edev, ebus) {
-                        if (!strcmp(edev->prom_name, "beep"))
-                                return init_ebus_beep(edev);
+                        if (!strcmp(edev->prom_name, "beep")) {
+                                beep_name = "Sparc EBUS Speaker";
+                                beep_event = ebus_spkr_event;
+                                beep_iobase = edev->resource[0].start;
+                                return sparcspkr_drv_init();
+                        }
                 }
         }
 #ifdef CONFIG_SPARC64
@@ -170,8 +213,12 @@ static int __init sparcspkr_init(void)
                         /* A hack, the beep device's base lives in
                          * the DMA isa node.
                          */
-                        if (!strcmp(isa_dev->prom_name, "dma"))
-                                return init_isa_beep(isa_dev);
+                        if (!strcmp(isa_dev->prom_name, "dma")) {
+                                beep_name = "Sparc ISA Speaker";
+                                beep_event = isa_spkr_event,
+                                beep_iobase = isa_dev->resource.start;
+                                return sparcspkr_drv_init();
+                        }
                 }
         }
 #endif
@@ -181,7 +228,8 @@ static int __init sparcspkr_init(void)
 
 static void __exit sparcspkr_exit(void)
 {
-        input_unregister_device(sparcspkr_dev);
+        platform_device_unregister(sparcspkr_platform_device);
+        platform_driver_unregister(&sparcspkr_platform_driver);
 }
 
 module_init(sparcspkr_init);