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Subject[PATCH 14/24] sparcspkr: register with driver core as a platfrom device
Input: sparcspkr - register with driver core as a platfrom device

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

drivers/input/misc/sparcspkr.c | 162 ++++++++++++++++++++++++++---------------
1 files changed, 105 insertions(+), 57 deletions(-)

Index: work/drivers/input/misc/sparcspkr.c
===================================================================
--- work.orig/drivers/input/misc/sparcspkr.c
+++ work/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@re
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_
/* 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_d

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;
+
+ input_dev->evbit[0] = BIT(EV_SND);
+ input_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+
+ input_dev->event = beep_event;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }

- sparcspkr_dev->name = "Sparc ISA Speaker";
- sparcspkr_dev->event = isa_spkr_event;
+ platform_set_drvdata(dev, input_dev);

- input_register_device(sparcspkr_dev);
+ return 0;
+}
+
+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;
}
-#endif
+
+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);
-
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