projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 920fe7a8 | 1 | /* |
| 5b7e42b2 | 2 | * linux/include/asm-arm/arch-sa1100/gpio.h |
| 920fe7a8 PZ |
3 | * |
| 4 | * SA1100 GPIO wrappers for arch-neutral GPIO calls | |
| 5 | * | |
| 6 | * Written by Philipp Zabel <philipp.zabel@gmail.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License as published by | |
| 10 | * the Free Software Foundation; either version 2 of the License, or | |
| 11 | * (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 21 | * | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef __ASM_ARCH_SA1100_GPIO_H | |
| 25 | #define __ASM_ARCH_SA1100_GPIO_H | |
| 26 | ||
| be509729 | 27 | #include <asm/arch/hardware.h> |
| 5b7e42b2 | 28 | #include <asm/irq.h> |
| 45528e38 | 29 | #include <asm-generic/gpio.h> |
| 5b7e42b2 PZ |
30 | |
| 31 | static inline int gpio_get_value(unsigned gpio) | |
| 920fe7a8 | 32 | { |
| 45528e38 DES |
33 | if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) |
| 34 | return GPLR & GPIO_GPIO(gpio); | |
| 35 | else | |
| 36 | return __gpio_get_value(gpio); | |
| 920fe7a8 PZ |
37 | } |
| 38 | ||
| 5b7e42b2 | 39 | static inline void gpio_set_value(unsigned gpio, int value) |
| 920fe7a8 | 40 | { |
| 45528e38 DES |
41 | if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) |
| 42 | if (value) | |
| 43 | GPSR = GPIO_GPIO(gpio); | |
| 44 | else | |
| 45 | GPCR = GPIO_GPIO(gpio); | |
| 5b7e42b2 | 46 | else |
| 45528e38 | 47 | __gpio_set_value(gpio, value); |
| 920fe7a8 PZ |
48 | } |
| 49 | ||
| 45528e38 | 50 | #define gpio_cansleep __gpio_cansleep |
| 920fe7a8 PZ |
51 | |
| 52 | static inline unsigned gpio_to_irq(unsigned gpio) | |
| 53 | { | |
| 54 | if (gpio < 11) | |
| 55 | return IRQ_GPIO0 + gpio; | |
| 56 | else | |
| 57 | return IRQ_GPIO11 - 11 + gpio; | |
| 58 | } | |
| 59 | ||
| 60 | static inline unsigned irq_to_gpio(unsigned irq) | |
| 61 | { | |
| 62 | if (irq < IRQ_GPIO11_27) | |
| 63 | return irq - IRQ_GPIO0; | |
| 64 | else | |
| 65 | return irq - IRQ_GPIO11 + 11; | |
| 66 | } | |
| 67 | ||
| 68 | #endif |