* Driver for PC-speaker like devices found on various Sparc systems.
*
* Copyright (c) 2002 Vojtech Pavlik
- * Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ * Copyright (c) 2002, 2006 David S. Miller (davem@davemloft.net)
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#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>
-#ifdef CONFIG_SPARC64
#include <asm/isa.h>
-#endif
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_DESCRIPTION("Sparc Speaker beeper driver");
MODULE_LICENSE("GPL");
-static unsigned long beep_iobase;
-
-static char *sparcspkr_isa_name = "Sparc ISA Speaker";
-static char *sparcspkr_ebus_name = "Sparc EBUS Speaker";
-static char *sparcspkr_phys = "sparc/input0";
-static struct input_dev sparcspkr_dev;
-
-spinlock_t beep_lock = SPIN_LOCK_UNLOCKED;
-
-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 = sparcspkr_phys;
- sparcspkr_dev.id.bustype = BUS_ISA;
- sparcspkr_dev.id.vendor = 0x001f;
- sparcspkr_dev.id.product = 0x0001;
- sparcspkr_dev.id.version = 0x0100;
-}
+struct sparcspkr_state {
+ const char *name;
+ unsigned long iobase;
+ int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+ spinlock_t lock;
+ struct input_dev *input_dev;
+};
static int ebus_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->cdev.dev);
unsigned int count = 0;
unsigned long flags;
if (value > 20 && value < 32767)
count = 1193182 / value;
- spin_lock_irqsave(&beep_lock, flags);
+ spin_lock_irqsave(&state->lock, flags);
/* 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);
- }
-
- 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;
-
- init_sparcspkr_struct();
+ if (state->iobase & 0x2UL)
+ outb(!!count, state->iobase);
+ else
+ outl(!!count, state->iobase);
- sparcspkr_dev.name = sparcspkr_ebus_name;
- sparcspkr_dev.event = ebus_spkr_event;
+ spin_unlock_irqrestore(&state->lock, flags);
- input_register_device(&sparcspkr_dev);
-
- printk(KERN_INFO "input: %s\n", sparcspkr_ebus_name);
return 0;
}
-#ifdef CONFIG_SPARC64
static int isa_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->cdev.dev);
unsigned int count = 0;
unsigned long flags;
if (value > 20 && value < 32767)
count = 1193182 / value;
- spin_lock_irqsave(&beep_lock, flags);
+ spin_lock_irqsave(&state->lock, flags);
if (count) {
/* enable counter 2 */
- outb(inb(beep_iobase + 0x61) | 3, beep_iobase + 0x61);
+ outb(inb(state->iobase + 0x61) | 3, state->iobase + 0x61);
/* set command for counter 2, 2 byte write */
- outb(0xB6, beep_iobase + 0x43);
+ outb(0xB6, state->iobase + 0x43);
/* select desired HZ */
- outb(count & 0xff, beep_iobase + 0x42);
- outb((count >> 8) & 0xff, beep_iobase + 0x42);
+ outb(count & 0xff, state->iobase + 0x42);
+ outb((count >> 8) & 0xff, state->iobase + 0x42);
} else {
/* disable counter 2 */
- outb(inb_p(beep_iobase + 0x61) & 0xFC, beep_iobase + 0x61);
+ outb(inb_p(state->iobase + 0x61) & 0xFC, state->iobase + 0x61);
}
- spin_unlock_irqrestore(&beep_lock, flags);
+ spin_unlock_irqrestore(&state->lock, flags);
return 0;
}
-static int __init init_isa_beep(struct sparc_isa_device *isa_dev)
+static int __devinit sparcspkr_probe(struct device *dev)
{
- beep_iobase = isa_dev->resource.start;
+ struct sparcspkr_state *state = dev_get_drvdata(dev);
+ struct input_dev *input_dev;
+ int error;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = state->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;
+
+ input_dev->evbit[0] = BIT(EV_SND);
+ input_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+
+ input_dev->event = state->event;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }
- init_sparcspkr_struct();
+ state->input_dev = input_dev;
- sparcspkr_dev.name = sparcspkr_isa_name;
- sparcspkr_dev.event = isa_spkr_event;
- sparcspkr_dev.id.bustype = BUS_ISA;
+ return 0;
+}
- input_register_device(&sparcspkr_dev);
+static int __devexit sparcspkr_remove(struct of_device *dev)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(&dev->dev);
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ input_unregister_device(input_dev);
+
+ dev_set_drvdata(&dev->dev, NULL);
+ kfree(state);
- printk(KERN_INFO "input: %s\n", sparcspkr_isa_name);
return 0;
}
-#endif
-static int __init sparcspkr_init(void)
+static int sparcspkr_shutdown(struct of_device *dev)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(&dev->dev);
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static int __devinit ebus_beep_probe(struct of_device *dev, const struct of_device_id *match)
+{
+ struct linux_ebus_device *edev = to_ebus_device(&dev->dev);
+ struct sparcspkr_state *state;
+ int err;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return -ENOMEM;
+
+ state->name = "Sparc EBUS Speaker";
+ state->iobase = edev->resource[0].start;
+ state->event = ebus_spkr_event;
+ spin_lock_init(&state->lock);
+
+ dev_set_drvdata(&dev->dev, state);
+
+ err = sparcspkr_probe(&dev->dev);
+ if (err) {
+ dev_set_drvdata(&dev->dev, NULL);
+ kfree(state);
+ }
+
+ return 0;
+}
+
+static struct of_device_id ebus_beep_match[] = {
+ {
+ .name = "beep",
+ },
+ {},
+};
+
+static struct of_platform_driver ebus_beep_driver = {
+ .name = "beep",
+ .match_table = ebus_beep_match,
+ .probe = ebus_beep_probe,
+ .remove = sparcspkr_remove,
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int __devinit isa_beep_probe(struct of_device *dev, const struct of_device_id *match)
{
- struct linux_ebus *ebus;
- struct linux_ebus_device *edev = NULL;
-#ifdef CONFIG_SPARC64
- struct sparc_isa_bridge *isa_br;
- struct sparc_isa_device *isa_dev;
-#endif
-
- for_each_ebus(ebus) {
- for_each_ebusdev(edev, ebus) {
- if (!strcmp(edev->prom_name, "beep"))
- return init_ebus_beep(edev);
- }
+ struct sparc_isa_device *idev = to_isa_device(&dev->dev);
+ struct sparcspkr_state *state;
+ int err;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return -ENOMEM;
+
+ state->name = "Sparc ISA Speaker";
+ state->iobase = idev->resource.start;
+ state->event = isa_spkr_event;
+ spin_lock_init(&state->lock);
+
+ dev_set_drvdata(&dev->dev, state);
+
+ err = sparcspkr_probe(&dev->dev);
+ if (err) {
+ dev_set_drvdata(&dev->dev, NULL);
+ kfree(state);
}
-#ifdef CONFIG_SPARC64
- for_each_isa(isa_br) {
- for_each_isadev(isa_dev, isa_br) {
- /* 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);
- }
+
+ return 0;
+}
+
+static struct of_device_id isa_beep_match[] = {
+ {
+ .name = "dma",
+ },
+ {},
+};
+
+static struct of_platform_driver isa_beep_driver = {
+ .name = "beep",
+ .match_table = isa_beep_match,
+ .probe = isa_beep_probe,
+ .remove = sparcspkr_remove,
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int __init sparcspkr_init(void)
+{
+ int err = of_register_driver(&ebus_beep_driver, &ebus_bus_type);
+
+ if (!err) {
+ err = of_register_driver(&isa_beep_driver, &isa_bus_type);
+ if (err)
+ of_unregister_driver(&ebus_beep_driver);
}
-#endif
- return -ENODEV;
+ return err;
}
static void __exit sparcspkr_exit(void)
{
- input_unregister_device(&sparcspkr_dev);
+ of_unregister_driver(&ebus_beep_driver);
+ of_unregister_driver(&isa_beep_driver);
}
module_init(sparcspkr_init);
git://git.onelab.eu / linux-2.6.git / blobdiff