[package] mac80211: update ath9k patches
[openwrt.git] / target / linux / ifxmips / files / include / asm-mips / mach-ifxmips / gpio.h
1 /*
2 * include/asm-mips/mach-ifxmips/gpio.h
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
19 *
20 */
21
22 #ifndef _IFXMIPS_GPIO_H_
23 #define _IFXMIPS_GPIO_H_
24
25 #include <asm/ifxmips/ifxmips.h>
26 #include <asm/ifxmips/ifxmips_gpio.h>
27
28 #define GPIO_TO_PORT(x) ((x > 15) ? (1) : (0))
29 #define GPIO_TO_GPIO(x) ((x > 15) ? (x-16) : (x))
30
31 static inline int gpio_direction_input(unsigned gpio)
32 {
33 ifxmips_port_set_open_drain(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
34 ifxmips_port_clear_altsel0(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
35 ifxmips_port_clear_altsel1(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
36 ifxmips_port_set_dir_in(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
37 return 0;
38 }
39
40 static inline int gpio_direction_output(unsigned gpio, int value)
41 {
42 ifxmips_port_clear_open_drain(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
43 ifxmips_port_clear_altsel0(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
44 ifxmips_port_clear_altsel1(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
45 ifxmips_port_set_dir_out(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
46 return 0;
47 }
48
49 static inline int gpio_get_value(unsigned gpio)
50 {
51 ifxmips_port_get_input(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
52 return 0;
53 }
54
55 static inline void gpio_set_value(unsigned gpio, int value)
56 {
57 if (value)
58 ifxmips_port_set_output(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
59 else
60 ifxmips_port_clear_output(GPIO_TO_PORT(gpio),
61 GPIO_TO_GPIO(gpio));
62 }
63
64 static inline int gpio_request(unsigned gpio, const char *label)
65 {
66 return 0;
67 }
68
69 static inline void gpio_free(unsigned gpio)
70 {
71 }
72
73 static inline int gpio_to_irq(unsigned gpio)
74 {
75 return 0;
76 }
77
78 static inline int irq_to_gpio(unsigned irq)
79 {
80 return 0;
81 }
82
83 static inline int gpio_cansleep(unsigned gpio)
84 {
85 return 0;
86 }
87
88 static inline int gpio_get_value_cansleep(unsigned gpio)
89 {
90 might_sleep();
91 return gpio_get_value(gpio);
92 }
93
94 static inline void gpio_set_value_cansleep(unsigned gpio, int value)
95 {
96 might_sleep();
97 gpio_set_value(gpio, value);
98 }
99
100 static inline int gpio_is_valid(int number)
101 {
102 return ((unsigned)number) < 8;
103 }
104
105 #endif
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