redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

Input: gpio-keys - switch to common GPIO API

Browse source 
This adds support for at least SA1100 and S3C24xx CPUs.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Philipp Zabel 2007-02-18 01:40:46 -05:00 committed by Dmitry Torokhov
parent 1efa770f8e
commit 0d98f6bbd8
2 changed files with 11 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/input/keyboard/Kconfig
View file

@ -215,11 +215,11 @@ config KEYBOARD_AAED2000
module will be called aaed2000_kbd.
config KEYBOARD_GPIO
tristate "Buttons on CPU GPIOs (PXA)"
depends on ARCH_PXA
tristate "Buttons on CPU GPIOs (PXA)"
depends on (ARCH_SA1100 || ARCH_PXA || ARCH_S3C2410)
help
This driver implements support for buttons connected
directly to GPIO pins of PXA CPUs.
directly to GPIO pins of SA1100, PXA or S3C24xx CPUs.
Say Y here if your device has buttons connected
directly to GPIO pins of the CPU.

15
drivers/input/keyboard/gpio_keys.c
View file

@ -24,7 +24,7 @@
#include <linux/input.h>
#include <linux/irq.h>
#include <asm/arch/pxa-regs.h>
#include <asm/gpio.h>
#include <asm/arch/hardware.h>
#include <asm/hardware/gpio_keys.h>
@ -38,8 +38,8 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
for (i = 0; i < pdata->nbuttons; i++) {
int gpio = pdata->buttons[i].gpio;
if (irq == IRQ_GPIO(gpio)) {
int state = ((GPLR(gpio) & GPIO_bit(gpio)) ? 1 : 0) ^ (pdata->buttons[i].active_low);
if (irq == gpio_to_irq(gpio)) {
int state = (gpio_get_value(gpio) ? 1 : 0) ^ (pdata->buttons[i].active_low);
input_report_key(input, pdata->buttons[i].keycode, state);
input_sync(input);
@ -75,14 +75,15 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
for (i = 0; i < pdata->nbuttons; i++) {
int code = pdata->buttons[i].keycode;
int irq = IRQ_GPIO(pdata->buttons[i].gpio);
int irq = gpio_to_irq(pdata->buttons[i].gpio);
set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
error = request_irq(irq, gpio_keys_isr, IRQF_SAMPLE_RANDOM,
pdata->buttons[i].desc ? pdata->buttons[i].desc : "gpio_keys",
pdev);
if (error) {
printk(KERN_ERR "gpio-keys: unable to claim irq %d; error %d\n", irq, ret);
printk(KERN_ERR "gpio-keys: unable to claim irq %d; error %d\n",
irq, error);
goto fail;
}
set_bit(code, input->keybit);
@ -98,7 +99,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
fail:
for (i = i - 1; i >= 0; i--)
free_irq(IRQ_GPIO(pdata->buttons[i].gpio), pdev);
free_irq(gpio_to_irq(pdata->buttons[i].gpio), pdev);
input_free_device(input);
@ -112,7 +113,7 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
int i;
for (i = 0; i < pdata->nbuttons; i++) {
int irq = IRQ_GPIO(pdata->buttons[i].gpio);
int irq = gpio_to_irq(pdata->buttons[i].gpio);
free_irq(irq, pdev);
}