2 * include/asm-mips/mach-ifxmips/gpio.h
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.
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.
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.
18 * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
22 #ifndef _IFXMIPS_GPIO_H_
23 #define _IFXMIPS_GPIO_H_
25 #include <asm/ifxmips/ifxmips.h>
26 #include <asm/ifxmips/ifxmips_gpio.h>
28 #define GPIO_TO_PORT(x) ((x > 15) ? (1) : (0))
29 #define GPIO_TO_GPIO(x) ((x > 15) ? (x-16) : (x))
31 static inline int gpio_direction_input(unsigned gpio
)
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
));
40 static inline int gpio_direction_output(unsigned gpio
, int value
)
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
));
49 static inline int gpio_get_value(unsigned gpio
)
51 ifxmips_port_get_input(GPIO_TO_PORT(gpio
), GPIO_TO_GPIO(gpio
));
55 static inline void gpio_set_value(unsigned gpio
, int value
)
58 ifxmips_port_set_output(GPIO_TO_PORT(gpio
), GPIO_TO_GPIO(gpio
));
60 ifxmips_port_clear_output(GPIO_TO_PORT(gpio
),
64 static inline int gpio_request(unsigned gpio
, const char *label
)
69 static inline void gpio_free(unsigned gpio
)
73 static inline int gpio_to_irq(unsigned gpio
)
78 static inline int irq_to_gpio(unsigned irq
)
83 static inline int gpio_cansleep(unsigned gpio
)
88 static inline int gpio_get_value_cansleep(unsigned gpio
)
91 return gpio_get_value(gpio
);
94 static inline void gpio_set_value_cansleep(unsigned gpio
, int value
)
97 gpio_set_value(gpio
, value
);
100 static inline int gpio_is_valid(int number
)
102 return ((unsigned)number
) < 8;
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