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 __ARM_GPIOLIB_COMPLEX
32
33 #define IOP3XX_N_GPIOS 8
34
gpio_get_value(unsigned gpio)35 static inline int gpio_get_value(unsigned gpio)
36 {
37 if (gpio > IOP3XX_N_GPIOS)
38 return __gpio_get_value(gpio);
39
40 return gpio_line_get(gpio);
41 }
42
gpio_set_value(unsigned gpio,int value)43 static inline void gpio_set_value(unsigned gpio, int value)
44 {
45 if (gpio > IOP3XX_N_GPIOS) {
46 __gpio_set_value(gpio, value);
47 return;
48 }
49 gpio_line_set(gpio, value);
50 }
51
gpio_cansleep(unsigned gpio)52 static inline int gpio_cansleep(unsigned gpio)
53 {
54 if (gpio < IOP3XX_N_GPIOS)
55 return 0;
56 else
57 return __gpio_cansleep(gpio);
58 }
59
60 /*
61 * The GPIOs are not generating any interrupt
62 * Note : manuals are not clear about this
63 */
gpio_to_irq(int gpio)64 static inline int gpio_to_irq(int gpio)
65 {
66 return -EINVAL;
67 }
68
irq_to_gpio(int gpio)69 static inline int irq_to_gpio(int gpio)
70 {
71 return -EINVAL;
72 }
73
74 #endif
75
76