diff options
Diffstat (limited to 'drivers/input/misc/ixp4xx-beeper.c')
| -rw-r--r-- | drivers/input/misc/ixp4xx-beeper.c | 57 |
1 files changed, 24 insertions, 33 deletions
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c index 9dfd6e5f786..ed8e5e8449d 100644 --- a/drivers/input/misc/ixp4xx-beeper.c +++ b/drivers/input/misc/ixp4xx-beeper.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/interrupt.h> +#include <linux/gpio.h> #include <mach/hardware.h> MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); @@ -35,15 +36,12 @@ static void ixp4xx_spkr_control(unsigned int pin, unsigned int count) spin_lock_irqsave(&beep_lock, flags); - if (count) { - gpio_line_config(pin, IXP4XX_GPIO_OUT); - gpio_line_set(pin, IXP4XX_GPIO_LOW); - + if (count) { + gpio_direction_output(pin, 0); *IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE; } else { - gpio_line_config(pin, IXP4XX_GPIO_IN); - gpio_line_set(pin, IXP4XX_GPIO_HIGH); - + gpio_direction_output(pin, 1); + gpio_direction_input(pin); *IXP4XX_OSRT2 = 0; } @@ -69,11 +67,7 @@ static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned } if (value > 20 && value < 32767) -#ifndef FREQ - count = (ixp4xx_get_board_tick_rate() / (value * 4)) - 1; -#else - count = (FREQ / (value * 4)) - 1; -#endif + count = (ixp4xx_timer_freq / (value * 4)) - 1; ixp4xx_spkr_control(pin, count); @@ -82,16 +76,18 @@ static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id) { + unsigned int pin = (unsigned int) dev_id; + /* clear interrupt */ *IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND; /* flip the beeper output */ - *IXP4XX_GPIO_GPOUTR ^= (1 << (unsigned int) dev_id); + gpio_set_value(pin, !gpio_get_value(pin)); return IRQ_HANDLED; } -static int __devinit ixp4xx_spkr_probe(struct platform_device *dev) +static int ixp4xx_spkr_probe(struct platform_device *dev) { struct input_dev *input_dev; int err; @@ -114,11 +110,15 @@ static int __devinit ixp4xx_spkr_probe(struct platform_device *dev) input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); input_dev->event = ixp4xx_spkr_event; + err = gpio_request(dev->id, "ixp4-beeper"); + if (err) + goto err_free_device; + err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt, - IRQF_DISABLED | IRQF_NO_SUSPEND, "ixp4xx-beeper", + IRQF_NO_SUSPEND, "ixp4xx-beeper", (void *) dev->id); if (err) - goto err_free_device; + goto err_free_gpio; err = input_register_device(input_dev); if (err) @@ -129,26 +129,28 @@ static int __devinit ixp4xx_spkr_probe(struct platform_device *dev) return 0; err_free_irq: - free_irq(IRQ_IXP4XX_TIMER2, dev); + free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id); + err_free_gpio: + gpio_free(dev->id); err_free_device: input_free_device(input_dev); return err; } -static int __devexit ixp4xx_spkr_remove(struct platform_device *dev) +static int ixp4xx_spkr_remove(struct platform_device *dev) { struct input_dev *input_dev = platform_get_drvdata(dev); unsigned int pin = (unsigned int) input_get_drvdata(input_dev); input_unregister_device(input_dev); - platform_set_drvdata(dev, NULL); /* turn the speaker off */ disable_irq(IRQ_IXP4XX_TIMER2); ixp4xx_spkr_control(pin, 0); - free_irq(IRQ_IXP4XX_TIMER2, dev); + free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id); + gpio_free(dev->id); return 0; } @@ -169,19 +171,8 @@ static struct platform_driver ixp4xx_spkr_platform_driver = { .owner = THIS_MODULE, }, .probe = ixp4xx_spkr_probe, - .remove = __devexit_p(ixp4xx_spkr_remove), + .remove = ixp4xx_spkr_remove, .shutdown = ixp4xx_spkr_shutdown, }; +module_platform_driver(ixp4xx_spkr_platform_driver); -static int __init ixp4xx_spkr_init(void) -{ - return platform_driver_register(&ixp4xx_spkr_platform_driver); -} - -static void __exit ixp4xx_spkr_exit(void) -{ - platform_driver_unregister(&ixp4xx_spkr_platform_driver); -} - -module_init(ixp4xx_spkr_init); -module_exit(ixp4xx_spkr_exit); |