diff options
Diffstat (limited to 'arch/arm/include/asm/arch-tegra/gpio.h')
-rw-r--r-- | arch/arm/include/asm/arch-tegra/gpio.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra/gpio.h b/arch/arm/include/asm/arch-tegra/gpio.h new file mode 100644 index 0000000000..0a972d5e74 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra/gpio.h @@ -0,0 +1,40 @@ +/* + * 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_ */ |