root / lab4 / mouse.h @ 191
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| 1 | 68 | up20180642 | #ifndef MOUSE_H_INCLUDED
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| 2 | #define MOUSE_H_INCLUDED
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| 3 | 53 | up20180655 | |
| 4 | 58 | up20180642 | #include <stdint.h> |
| 5 | 53 | up20180655 | |
| 6 | 58 | up20180642 | /**
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| 7 | * @brief Subscribes Mouse Interrupts and disables Minix Default IH
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| 8 | * @param interrupt_bit Bit of Interrupt Vector that will be set when Mouse Interrupt is pending
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| 9 | * @param interrupt_id Mouse Interrupt ID to specify the Mouse Interrupt in other calls
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| 10 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 11 | * @see {_ERRORS_H_::errors}
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| 12 | */
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| 13 | int (subscribe_mouse_interrupt)(uint8_t interrupt_bit, int *interrupt_id); |
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| 14 | 53 | up20180655 | |
| 15 | 81 | up20180642 | //These have to do with mouse_ih
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| 16 | 80 | up20180642 | int got_error_mouse_ih;
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| 17 | uint8_t packet_mouse_ih[3];
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| 18 | int counter_mouse_ih;
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| 19 | |||
| 20 | 81 | up20180642 | /**
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| 21 | * @brief Parse 3 bytes and returns it as a parsed, struct packet.
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| 22 | * @param packet_bytes array of bytes to parse
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| 23 | * @return parsed struct packet
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| 24 | */
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| 25 | 58 | up20180642 | struct packet (mouse_parse_packet)(const uint8_t *packet_bytes); |
| 26 | 53 | up20180655 | |
| 27 | 81 | up20180642 | /**
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| 28 | * @brief Polls mouse for data. Blocks execution until a valid mouse packet is obtained.
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| 29 | * @param pp pointer to packet struct in which the result will be stored
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| 30 | * @param period time (in milliseconds) the poller should wait between pollings of bytes
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| 31 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 32 | */
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| 33 | 80 | up20180642 | int mouse_poll(struct packet *pp, uint16_t period); |
| 34 | |||
| 35 | /**
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| 36 | 81 | up20180642 | * @brief Sets data report mode for mouse
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| 37 | * @param on zero to disable data report, any other value to enable data report
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| 38 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 39 | 80 | up20180642 | */
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| 40 | 58 | up20180642 | int (mouse_set_data_report)(int on); |
| 41 | |||
| 42 | 70 | up20180655 | /**
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| 43 | * @brief Reads data byte from mouse
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| 44 | * <summary>
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| 45 | * Polls the mouse till data is available for reading
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| 46 | * </summary>
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| 47 | * @param data Pointer to variable where byte read from mouse will be stored
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| 48 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 49 | * @see {_ERRORS_H_::errors}
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| 50 | */
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| 51 | 80 | up20180642 | int (mouse_read_data)(uint8_t *data, uint16_t period);
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| 52 | 70 | up20180655 | |
| 53 | /**
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| 54 | * @brief Issues command to mouse
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| 55 | * <summary>
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| 56 | * Issues command to mouse, returns error after two consecutive errors reported by the acknowledgment byte
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| 57 | * </summary>
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| 58 | * @param cmd Command to be issued
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| 59 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 60 | * @see {_ERRORS_H_::errors}
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| 61 | */
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| 62 | int (mouse_issue_cmd)(uint32_t cmd);
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| 63 | |||
| 64 | /**
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| 65 | * @brief Reads byte from mouse
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| 66 | * <summary>
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| 67 | * Reads byte from mouse, giving error if exceeds number of tries to read
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| 68 | 71 | up20180655 | * </summary>
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| 69 | 70 | up20180655 | * @param byte Pointer to variable where byte read from mouse will be stored
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| 70 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 71 | * @see {_ERRORS_H_::errors}
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| 72 | */
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| 73 | int (mouse_read_byte)(uint8_t *byte);
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| 74 | |||
| 75 | 81 | up20180642 | /**
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| 76 | * @brief Polls OUT_BUF for byte coming from mouse.
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| 77 | * @param byte pointer to byte read from OUT_BUF
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| 78 | * @param period time (in milliseconds) the poller should wait between pollings of bytes
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| 79 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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| 80 | */
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| 81 | 80 | up20180642 | int (mouse_poll_byte)(uint8_t *byte, uint16_t period);
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| 82 | |||
| 83 | 71 | up20180655 | /**
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| 84 | * @brief Converts 9-bit number to 16-bit with sign extension
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| 85 | * @param sign_bit Sign bit identifiying the signal of the number
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| 86 | * @param byte Least significant byte that will be extended
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| 87 | * @return Extended 9-bit number
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| 88 | */
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| 89 | int16_t (sign_extend_byte)(uint8_t sign_bit, uint8_t byte); |
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| 90 | |||
| 91 | 68 | up20180642 | #endif //MOUSE_H_INCLUDED |