summaryrefslogtreecommitdiff
path: root/arch/avr32/mach-at32ap/include/mach/gpio.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-08-15 17:07:34 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-15 17:07:34 +0200
commit04197c83b3e05546d1003cfa3ff43f1639c0057f (patch)
treec04ddce9f519b91c0b20c6c09f7529928350eefe /arch/avr32/mach-at32ap/include/mach/gpio.h
parent71998e83c520c7a91b254dc9705baeedbee0d44f (diff)
parentb635acec48bcaa9183fcbf4e3955616b0d4119b5 (diff)
Merge branch 'linus' into x86/tracehook
Conflicts: arch/x86/Kconfig Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/avr32/mach-at32ap/include/mach/gpio.h')
-rw-r--r--arch/avr32/mach-at32ap/include/mach/gpio.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/include/mach/gpio.h b/arch/avr32/mach-at32ap/include/mach/gpio.h
new file mode 100644
index 000000000000..0180f584ef03
--- /dev/null
+++ b/arch/avr32/mach-at32ap/include/mach/gpio.h
@@ -0,0 +1,45 @@
+#ifndef __ASM_AVR32_ARCH_GPIO_H
+#define __ASM_AVR32_ARCH_GPIO_H
+
+#include <linux/compiler.h>
+#include <asm/irq.h>
+
+
+/* Some GPIO chips can manage IRQs; some can't. The exact numbers can
+ * be changed if needed, but for the moment they're not configurable.
+ */
+#define ARCH_NR_GPIOS (NR_GPIO_IRQS + 2 * 32)
+
+
+/* Arch-neutral GPIO API, supporting both "native" and external GPIOs. */
+#include <asm-generic/gpio.h>
+
+static inline int gpio_get_value(unsigned int gpio)
+{
+ return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+ __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+ return __gpio_cansleep(gpio);
+}
+
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+ if (gpio < NR_GPIO_IRQS)
+ return gpio + GPIO_IRQ_BASE;
+ return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+ return irq - GPIO_IRQ_BASE;
+}
+
+#endif /* __ASM_AVR32_ARCH_GPIO_H */