diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/input/serio/q40kbd.c | 89 |
1 files changed, 57 insertions, 32 deletions
diff --git a/drivers/input/serio/q40kbd.c b/drivers/input/serio/q40kbd.c index b44d255..d3827c5 100644 --- a/drivers/input/serio/q40kbd.c +++ b/drivers/input/serio/q40kbd.c @@ -75,13 +75,13 @@ static irqreturn_t q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs) static void q40kbd_flush(void) { - int maxread = 100; + int maxread = 100; unsigned long flags; spin_lock_irqsave(&q40kbd_lock, flags); - while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))) - master_inb(KEYCODE_REG); + while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))) + master_inb(KEYCODE_REG); spin_unlock_irqrestore(&q40kbd_lock, flags); } @@ -97,14 +97,14 @@ static int q40kbd_open(struct serio *port) if (request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL)) { printk(KERN_ERR "q40kbd.c: Can't get irq %d.\n", Q40_IRQ_KEYBOARD); - return -1; + return -EBUSY; } - /* off we go */ - master_outb(-1, KEYBOARD_UNLOCK_REG); - master_outb(1, KEY_IRQ_ENABLE_REG); + /* off we go */ + master_outb(-1, KEYBOARD_UNLOCK_REG); + master_outb(1, KEY_IRQ_ENABLE_REG); - return 0; + return 0; } static void q40kbd_close(struct serio *port) @@ -116,48 +116,73 @@ static void q40kbd_close(struct serio *port) q40kbd_flush(); } -static struct serio * __init q40kbd_allocate_port(void) +static int __devinit q40kbd_probe(struct platform_device *dev) { - struct serio *serio; - - serio = kmalloc(sizeof(struct serio), GFP_KERNEL); - if (serio) { - memset(serio, 0, sizeof(struct serio)); - serio->id.type = SERIO_8042; - serio->open = q40kbd_open; - serio->close = q40kbd_close; - serio->dev.parent = &q40kbd_device->dev; - strlcpy(serio->name, "Q40 Kbd Port", sizeof(serio->name)); - strlcpy(serio->phys, "Q40", sizeof(serio->phys)); - } + q40kbd_port = kzalloc(sizeof(struct serio), GFP_KERNEL); + if (!q40kbd_port) + return -ENOMEM; + + q40kbd_port->id.type = SERIO_8042; + q40kbd_port->open = q40kbd_open; + q40kbd_port->close = q40kbd_close; + q40kbd_port->dev.parent = &dev->dev; + strlcpy(q40kbd_port->name, "Q40 Kbd Port", sizeof(q40kbd_port->name)); + strlcpy(q40kbd_port->phys, "Q40", sizeof(q40kbd_port->phys)); + + serio_register_port(q40kbd_port); + printk(KERN_INFO "serio: Q40 kbd registered\n"); - return serio; + return 0; } +static int __devexit q40kbd_remove(struct platform_device *dev) +{ + serio_unregister_port(q40kbd_port); + + return 0; +} + +static struct platform_driver q40kbd_driver = { + .driver = { + .name = "q40kbd", + .owner = THIS_MODULE, + }, + .probe = q40kbd_probe, + .remove = __devexit_p(q40kbd_remove), +}; + static int __init q40kbd_init(void) { + int error; + if (!MACH_IS_Q40) return -EIO; - q40kbd_device = platform_device_register_simple("q40kbd", -1, NULL, 0); - if (IS_ERR(q40kbd_device)) - return PTR_ERR(q40kbd_device); + error = platform_driver_register(&q40kbd_driver); + if (error) + return error; - if (!(q40kbd_port = q40kbd_allocate_port())) { - platform_device_unregister(q40kbd_device); - return -ENOMEM; - } + q40kbd_device = platform_device_alloc("q40kbd", -1); + if (!q40kbd_device) + goto err_unregister_driver; - serio_register_port(q40kbd_port); - printk(KERN_INFO "serio: Q40 kbd registered\n"); + error = platform_device_add(q40kbd_device); + if (error) + goto err_free_device; return 0; + + err_free_device: + platform_device_put(q40kbd_device); + err_unregister_driver: + platform_driver_unregister(&q40kbd_driver); + return error; } static void __exit q40kbd_exit(void) { - serio_unregister_port(q40kbd_port); platform_device_unregister(q40kbd_device); + platform_driver_unregister(&q40kbd_driver); } module_init(q40kbd_init); |