V4L/DVB: ir-common: Use macros to define the keytables

[safe/jmp/linux-2.6] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index d6c379d..979c6a5 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_GENERIC_GPIO_H
 #define _ASM_GENERIC_GPIO_H
 
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 
@@ -27,6 +28,7 @@ static inline int gpio_is_valid(int number)
        return ((unsigned)number) < ARCH_NR_GPIOS;
 }
 
+struct device;
 struct seq_file;
 struct module;
 
@@ -134,6 +136,32 @@ extern int __gpio_cansleep(unsigned gpio);
 
 extern int __gpio_to_irq(unsigned gpio);
 
+#define GPIOF_DIR_OUT  (0 << 0)
+#define GPIOF_DIR_IN   (1 << 0)
+
+#define GPIOF_INIT_LOW (0 << 1)
+#define GPIOF_INIT_HIGH        (1 << 1)
+
+#define GPIOF_IN               (GPIOF_DIR_IN)
+#define GPIOF_OUT_INIT_LOW     (GPIOF_DIR_OUT | GPIOF_INIT_LOW)
+#define GPIOF_OUT_INIT_HIGH    (GPIOF_DIR_OUT | GPIOF_INIT_HIGH)
+
+/**
+ * struct gpio - a structure describing a GPIO with configuration
+ * @gpio:      the GPIO number
+ * @flags:     GPIO configuration as specified by GPIOF_*
+ * @label:     a literal description string of this GPIO
+ */
+struct gpio {
+       unsigned        gpio;
+       unsigned long   flags;
+       const char      *label;
+};
+
+extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
+extern int gpio_request_array(struct gpio *array, size_t num);
+extern void gpio_free_array(struct gpio *array, size_t num);
+
 #ifdef CONFIG_GPIO_SYSFS
 
 /*
@@ -141,6 +169,9 @@ extern int __gpio_to_irq(unsigned gpio);
  * but more typically is configured entirely from userspace.
  */
 extern int gpio_export(unsigned gpio, bool direction_may_change);
+extern int gpio_export_link(struct device *dev, const char *name,
+                       unsigned gpio);
+extern int gpio_sysfs_set_active_low(unsigned gpio, int value);
 extern void gpio_unexport(unsigned gpio);
 
 #endif /* CONFIG_GPIO_SYSFS */
@@ -178,6 +209,8 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 
 #ifndef CONFIG_GPIO_SYSFS
 
+struct device;
+
 /* sysfs support is only available with gpiolib, where it's optional */
 
 static inline int gpio_export(unsigned gpio, bool direction_may_change)
@@ -185,6 +218,17 @@ static inline int gpio_export(unsigned gpio, bool direction_may_change)
        return -ENOSYS;
 }
 
+static inline int gpio_export_link(struct device *dev, const char *name,
+                               unsigned gpio)
+{
+       return -ENOSYS;
+}
+
+static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
+{
+       return -ENOSYS;
+}
+
 static inline void gpio_unexport(unsigned gpio)
 {
 }