1 /*
2 * arch/arm/include/asm/hardware/iop3xx-gpio.h
3 *
4 * IOP3xx GPIO wrappers
5 *
6 * Copyright (c) 2008 Arnaud Patard <arnaud.patard@rtp-net.org>
7 * Based on IXP4XX gpio.h file
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25 #ifndef __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
26 #define __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
27
28 #include <mach/hardware.h>
29 #include <asm-generic/gpio.h>
30
31 #define IOP3XX_N_GPIOS 8
32
gpio_get_value(unsigned gpio)33 static inline int gpio_get_value(unsigned gpio)
34 {
35 if (gpio > IOP3XX_N_GPIOS)
36 return __gpio_get_value(gpio);
37
38 return gpio_line_get(gpio);
39 }
40
gpio_set_value(unsigned gpio,int value)41 static inline void gpio_set_value(unsigned gpio, int value)
42 {
43 if (gpio > IOP3XX_N_GPIOS) {
44 __gpio_set_value(gpio, value);
45 return;
46 }
47 gpio_line_set(gpio, value);
48 }
49
gpio_cansleep(unsigned gpio)50 static inline int gpio_cansleep(unsigned gpio)
51 {
52 if (gpio < IOP3XX_N_GPIOS)
53 return 0;
54 else
55 return __gpio_cansleep(gpio);
56 }
57
58 /*
59 * The GPIOs are not generating any interrupt
60 * Note : manuals are not clear about this
61 */
gpio_to_irq(int gpio)62 static inline int gpio_to_irq(int gpio)
63 {
64 return -EINVAL;
65 }
66
irq_to_gpio(int gpio)67 static inline int irq_to_gpio(int gpio)
68 {
69 return -EINVAL;
70 }
71
72 #endif
73
74