[PATCH] AT91 GPIO wrappers

[pandora-kernel.git] / include / asm-arm / arch-at91rm9200 / gpio.h

diff --git a/include/asm-arm/arch-at91rm9200/gpio.h b/include/asm-arm/arch-at91rm9200/gpio.h
index 0f0a61e..e09d652 100644 (file)
--- a/include/asm-arm/arch-at91rm9200/gpio.h
+++ b/include/asm-arm/arch-at91rm9200/gpio.h
@@ -13,12 +13,13 @@
 #ifndef __ASM_ARCH_AT91RM9200_GPIO_H
 #define __ASM_ARCH_AT91RM9200_GPIO_H
 
+#include <asm/irq.h>
+
 #define PIN_BASE               NR_AIC_IRQS
 
-#define PQFP_GPIO_BANKS                3       /* PQFP package has 3 banks */
-#define BGA_GPIO_BANKS         4       /* BGA package has 4 banks */
+#define MAX_GPIO_BANKS         4
 
-/* these pin numbers double as IRQ numbers, like AT91_ID_* values */
+/* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
 
 #define        AT91_PIN_PA0    (PIN_BASE + 0x00 + 0)
 #define        AT91_PIN_PA1    (PIN_BASE + 0x00 + 1)
@@ -178,16 +179,65 @@
 
 #ifndef __ASSEMBLY__
 /* setup setup routines, called from board init or driver probe() */
-extern int at91_set_A_periph(unsigned pin, int use_pullup);
-extern int at91_set_B_periph(unsigned pin, int use_pullup);
-extern int at91_set_gpio_input(unsigned pin, int use_pullup);
-extern int at91_set_gpio_output(unsigned pin, int value);
-extern int at91_set_deglitch(unsigned pin, int is_on);
+extern int __init_or_module at91_set_GPIO_periph(unsigned pin, int use_pullup);
+extern int __init_or_module at91_set_A_periph(unsigned pin, int use_pullup);
+extern int __init_or_module at91_set_B_periph(unsigned pin, int use_pullup);
+extern int __init_or_module at91_set_gpio_input(unsigned pin, int use_pullup);
+extern int __init_or_module at91_set_gpio_output(unsigned pin, int value);
+extern int __init_or_module at91_set_deglitch(unsigned pin, int is_on);
+extern int __init_or_module at91_set_multi_drive(unsigned pin, int is_on);
 
 /* callable at any time */
 extern int at91_set_gpio_value(unsigned pin, int value);
 extern int at91_get_gpio_value(unsigned pin);
-#endif
 
-#endif
+/* callable only from core power-management code */
+extern void at91_gpio_suspend(void);
+extern void at91_gpio_resume(void);
+
+/*-------------------------------------------------------------------------*/
+
+/* wrappers for "new style" GPIO calls. the old AT91-specfic ones should
+ * eventually be removed (along with this errno.h inclusion), and the
+ * gpio request/free calls should probably be implemented.
+ */
+
+#include <asm/errno.h>
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+       return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+}
 
+extern int gpio_direction_input(unsigned gpio);
+extern int gpio_direction_output(unsigned gpio);
+
+static inline int gpio_get_value(unsigned gpio)
+{
+       return at91_get_gpio_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+       at91_set_gpio_value(gpio, value);
+}
+
+#include <asm-generic/gpio.h>          /* cansleep wrappers */
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+       return gpio;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+       return irq;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif