1 /*
2 * arch/arm/mach-sa1100/include/mach/gpio.h
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
27 #include <mach/hardware.h>
28 #include <asm/irq.h>
29 #include <asm-generic/gpio.h>
30
gpio_get_value(unsigned gpio)31 static inline int gpio_get_value(unsigned gpio)
32 {
33 if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
34 return GPLR & GPIO_GPIO(gpio);
35 else
36 return __gpio_get_value(gpio);
37 }
38
gpio_set_value(unsigned gpio,int value)39 static inline void gpio_set_value(unsigned gpio, int value)
40 {
41 if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
42 if (value)
43 GPSR = GPIO_GPIO(gpio);
44 else
45 GPCR = GPIO_GPIO(gpio);
46 else
47 __gpio_set_value(gpio, value);
48 }
49
50 #define gpio_cansleep __gpio_cansleep
51
gpio_to_irq(unsigned gpio)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
irq_to_gpio(unsigned irq)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
69