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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-tegra/include/mach/gpio.h | |
download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip |
initial_commit
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/gpio.h')
-rw-r--r-- | arch/arm/mach-tegra/include/mach/gpio.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h new file mode 100644 index 00000000..196f114d --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/gpio.h @@ -0,0 +1,60 @@ +/* + * arch/arm/mach-tegra/include/mach/gpio.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#ifndef __MACH_TEGRA_GPIO_H +#define __MACH_TEGRA_GPIO_H + +#include <linux/init.h> +#include <mach/irqs.h> + +#define TEGRA_NR_GPIOS INT_GPIO_NR + +#include <asm-generic/gpio.h> + +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep + +#define TEGRA_GPIO_TO_IRQ(gpio) (INT_GPIO_BASE + (gpio)) +#define TEGRA_IRQ_TO_GPIO(irq) ((irq) - INT_GPIO_BASE) + +static inline int gpio_to_irq(unsigned int gpio) +{ + if (gpio < TEGRA_NR_GPIOS) + return INT_GPIO_BASE + gpio; + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned int irq) +{ + if ((irq >= INT_GPIO_BASE) && (irq < INT_GPIO_BASE + INT_GPIO_NR)) + return irq - INT_GPIO_BASE; + return -EINVAL; +} + +struct tegra_gpio_table { + int gpio; /* GPIO number */ + bool enable; /* Enable for GPIO at init? */ +}; + +void tegra_gpio_config(struct tegra_gpio_table *table, int num); +void tegra_gpio_enable(int gpio); +void tegra_gpio_disable(int gpio); + +#endif |