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-rw-r--r--include/asm-arm/arch-s5pc1xx/gpio.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s5pc1xx/gpio.h b/include/asm-arm/arch-s5pc1xx/gpio.h
index afbc7ea..8e4bb86 100644
--- a/include/asm-arm/arch-s5pc1xx/gpio.h
+++ b/include/asm-arm/arch-s5pc1xx/gpio.h
@@ -124,6 +124,35 @@ struct s5pc110_gpio {
struct s5pc1xx_gpio_bank gpio_h2;
struct s5pc1xx_gpio_bank gpio_h3;
};
+
+/* functions */
+void gpio_cfg_pin(struct s5pc1xx_gpio_bank *bank, int gpio, int cfg);
+void gpio_direction_output(struct s5pc1xx_gpio_bank *bank, int gpio, int en);
+void gpio_direction_input(struct s5pc1xx_gpio_bank *bank, int gpio);
+void gpio_set_value(struct s5pc1xx_gpio_bank *bank, int gpio, int en);
+unsigned int gpio_get_value(struct s5pc1xx_gpio_bank *bank, int gpio);
+void gpio_set_pull(struct s5pc1xx_gpio_bank *bank, int gpio, int mode);
+void gpio_set_drv(struct s5pc1xx_gpio_bank *bank, int gpio, int mode);
+void gpio_set_rate(struct s5pc1xx_gpio_bank *bank, int gpio, int mode);
#endif
+/* Pin configurations */
+#define GPIO_INPUT 0x0
+#define GPIO_OUTPUT 0x1
+#define GPIO_IRQ 0xf
+#define GPIO_FUNC(x) (x)
+
+/* Pull mode */
+#define GPIO_PULL_NONE 0x0
+#define GPIO_PULL_DOWN 0x1
+#define GPIO_PULL_UP 0x2
+
+/* Drive Strength level */
+#define GPIO_DRV_1X 0x0
+#define GPIO_DRV_2X 0x1
+#define GPIO_DRV_3X 0x2
+#define GPIO_DRV_4X 0x3
+#define GPIO_DRV_FAST 0x0
+#define GPIO_DRV_SLOW 0x1
+
#endif