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Annotation of funnyos/sys/gpio.h, Revision 1.1

1.1     ! nbrk        1: /*
        !             2:  * $Id$
        !             3:  */
        !             4: #ifndef _SYS_GPIO_H
        !             5: #define _SYS_GPIO_H
        !             6:
        !             7: #include <sys/types.h>
        !             8:
        !             9: /*
        !            10:  * General Purpose Input/Output
        !            11:  */
        !            12:
        !            13: /* gpio pin flags */
        !            14: #define GPIO_PIN_INPUT                 0x00 /* configured as input */
        !            15: #define GPIO_PIN_OUTPUT        0x01 /* configured as output */
        !            16:
        !            17:
        !            18: struct gpio_pin {
        !            19:        uint32_t        gp_pinno;       /* pin number */
        !            20:
        !            21:        uint8_t         gp_pio;         /* driven by PIO (1) or by Peripherals (0) */
        !            22:        uint8_t         gp_flags;       /* pin flags */
        !            23:        uint8_t         gp_value;       /* pin value (0 or 1) */
        !            24: };
        !            25:
        !            26:
        !            27: /* each gpio controller should provide us with this */
        !            28: struct gpio_controller {
        !            29:        uint8_t                 (*gc_pinread)(void *selfdd, uint32_t pin);
        !            30:        void                    (*gc_pinwrite)(void *selfdd, uint32_t pin, uint8_t data);
        !            31:        void                    (*gc_pinset)(void *selfdd, struct gpio_pin state);
        !            32:        struct gpio_pin (*gc_pinget)(void *selfdd, uint32_t pin);
        !            33:
        !            34:        uint32_t                gc_npins;       /* total number of pins */
        !            35:
        !            36:        void                    *gc_selfdd; /* controller's dv_devdata */
        !            37: };
        !            38:
        !            39: #endif /* not _SYS_GPIO_H */
        !            40: