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Diffstat (limited to 'include/asm-arm/arch-omap/gpio.h')
-rw-r--r--include/asm-arm/arch-omap/gpio.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/gpio.h b/include/asm-arm/arch-omap/gpio.h
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+++ b/include/asm-arm/arch-omap/gpio.h
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+/*
+ * linux/include/asm-arm/arch-omap/gpio.h
+ *
+ * OMAP GPIO handling defines and functions
+ *
+ * Copyright (C) 2003 Nokia Corporation
+ *
+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ASM_ARCH_OMAP_GPIO_H
+#define __ASM_ARCH_OMAP_GPIO_H
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/irqs.h>
+#include <asm/io.h>
+
+#define OMAP_MPUIO_BASE 0xfffb5000
+#define OMAP_MPUIO_INPUT_LATCH 0x00
+#define OMAP_MPUIO_OUTPUT 0x04
+#define OMAP_MPUIO_IO_CNTL 0x08
+#define OMAP_MPUIO_KBR_LATCH 0x10
+#define OMAP_MPUIO_KBC 0x14
+#define OMAP_MPUIO_GPIO_EVENT_MODE 0x18
+#define OMAP_MPUIO_GPIO_INT_EDGE 0x1c
+#define OMAP_MPUIO_KBD_INT 0x20
+#define OMAP_MPUIO_GPIO_INT 0x24
+#define OMAP_MPUIO_KBD_MASKIT 0x28
+#define OMAP_MPUIO_GPIO_MASKIT 0x2c
+#define OMAP_MPUIO_GPIO_DEBOUNCING 0x30
+#define OMAP_MPUIO_LATCH 0x34
+
+#define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr))
+#define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES)
+
+#define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \
+ IH_MPUIO_BASE + ((nr) & 0x0f) : \
+ IH_GPIO_BASE + ((nr) & 0x3f))
+
+/* For EDGECTRL */
+#define OMAP_GPIO_NO_EDGE 0x00
+#define OMAP_GPIO_FALLING_EDGE 0x01
+#define OMAP_GPIO_RISING_EDGE 0x02
+#define OMAP_GPIO_BOTH_EDGES 0x03
+
+extern int omap_gpio_init(void); /* Call from board init only */
+extern int omap_request_gpio(int gpio);
+extern void omap_free_gpio(int gpio);
+extern void omap_set_gpio_direction(int gpio, int is_input);
+extern void omap_set_gpio_dataout(int gpio, int enable);
+extern int omap_get_gpio_datain(int gpio);
+extern void omap_set_gpio_edge_ctrl(int gpio, int edge);
+
+#endif