root / lab4 / mouse.h @ 15
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| 1 | 15 | up20180645 | #ifndef _MOUSE_H
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| 2 | #define _MOUSE_H
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| 3 | |||
| 4 | #include <lcom/lcf.h> |
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| 5 | #include <stdbool.h> |
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| 6 | #include <stdint.h> |
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| 7 | #include <minix/syslib.h> |
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| 8 | #include <minix/sysutil.h> |
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| 9 | |||
| 10 | #include "i8042.h" |
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| 11 | |||
| 12 | /**
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| 13 | * @brief Handles mouse interrupts
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| 14 | *
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| 15 | * Reads the status register, the output buffer and the mouse data
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| 16 | * If there was some error, the byte read from the OB should be discarded
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| 17 | *
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| 18 | * All communication with other code must be done via global variables, static if possible
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| 19 | *
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| 20 | * Must be defined using parenthesis around the function name:
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| 21 | */
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| 22 | void (mouse_ih)(void); |
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| 23 | /**
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| 24 | * @brief Invokes sys_inb() system call but reads the value into a uint8_t variable.
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| 25 | *
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| 26 | * @param port the input port that is to be read
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| 27 | * @param value address of 8-bit variable to be update with the value read
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| 28 | * @return Return 0 upon success and non-zero otherwise
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| 29 | */
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| 30 | int (util_sys_inb)(int port, uint8_t *value); |
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| 31 | /**
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| 32 | * @brief Subscribes and enables mouse interrupts
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| 33 | *
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| 34 | * @param bit_no address of memory to be initialized with the bit number to be set in the mask returned upon an interrupt
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| 35 | * @return Return 0 upon success and non-zero otherwise
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| 36 | */
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| 37 | int(mouse_subscribe_int)(uint8_t *bit_no);
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| 38 | |||
| 39 | /**
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| 40 | * @brief Unsubscribes mouse interrupts
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| 41 | *
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| 42 | * @return Return 0 upon success and non-zero otherwise
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| 43 | */
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| 44 | int(mouse_unsubscribe_int)();
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| 45 | /**
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| 46 | *
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| 47 | *
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| 48 | *
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| 49 | */
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| 50 | int(parse_packet)(struct packet *pp); |