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Diffstat (limited to 'arch/arm/include/asm/arch-tegra/gpio.h')
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diff --git a/arch/arm/include/asm/arch-tegra/gpio.h b/arch/arm/include/asm/arch-tegra/gpio.h
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+/*
+ * Copyright (c) 2011, Google Inc. All rights reserved.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 _TEGRA_GPIO_H_
+#define _TEGRA_GPIO_H_
+
+#define MAX_NUM_GPIOS (TEGRA_GPIO_PORTS * TEGRA_GPIO_BANKS * 8)
+#define GPIO_NAME_SIZE 20 /* gpio_request max label len */
+
+#define GPIO_BANK(x) ((x) >> 5)
+#define GPIO_PORT(x) (((x) >> 3) & 0x3)
+#define GPIO_FULLPORT(x) ((x) >> 3)
+#define GPIO_BIT(x) ((x) & 0x7)
+
+/*
+ * Tegra-specific GPIO API
+ */
+
+void gpio_info(void);
+
+#define gpio_status() gpio_info()
+#endif /* TEGRA_GPIO_H_ */