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root / proj / libs / kbc / include / mouse.h @ 368

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#ifndef MOUSE_H_INCLUDED
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#define MOUSE_H_INCLUDED
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/**
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 * @defgroup    mouse   mouse
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 * @ingroup kbc
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 * @brief   Mouse module.
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 *
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 * @{
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 */
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/**
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 * @brief Subscribes Mouse Interrupts and disables Minix Default IH
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 * @param interrupt_bit Bit of Interrupt Vector that will be set when Mouse Interrupt is pending
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 * @param interrupt_id Mouse Interrupt ID to specify the Mouse Interrupt in other calls
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 * @see {_ERRORS_H_::errors}
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 */
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int (subscribe_mouse_interrupt)(uint8_t interrupt_bit, int *interrupt_id);
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//These have to do with mouse_ih
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/**
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 * @brief Get previous mouse interrupt handler call exit code.
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 * @return  Exit code of previous mouse IH call
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 */
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int (mouse_get_got_error_mouse_ih)(void);
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/**
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 * @brief Get mouse packet.
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 * @return  Pointer to mouse packet
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 */
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const uint8_t* (mouse_get_packet_mouse_ih)(void);
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/**
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 * @brief Number of mouse bytes received (0 to 3).
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 * @return  Number of bytes
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 */
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int (mouse_get_counter_mouse_ih)(void);
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/**
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 * @brief Set number of received mouse bytes.
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 *
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 * Usually this function is used to reset counter_mouse_ih.
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 * @param   n   New value of the counter
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 */
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void (mouse_set_counter_mouse_ih)(int n);
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/**
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 * @brief   Parse 3 bytes and returns it as a parsed, struct packet.
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 * @param   packet_bytes    array of bytes to parse
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 * @param   pp              Pointer to packet to store the information.
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 */
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void (mouse_parse_packet)(const uint8_t *packet_bytes, struct packet *pp);
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/**
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 * @brief Polls mouse for data. Blocks execution until a valid mouse packet is obtained.
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 * @param   pp      pointer to packet struct in which the result will be stored
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 * @param   period  time (in milliseconds) the poller should wait between pollings of bytes
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 */
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int mouse_poll(struct packet *pp, uint16_t period);
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/**
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 * @brief Sets data report mode for mouse
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 * @param   on  zero to disable data report, any other value to enable data report
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 * @return  ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 */
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int (mouse_set_data_report)(int on);
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/**
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 * @brief Reads data byte from mouse
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 * <summary>
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 * Polls the mouse till data is available for reading
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 * </summary>
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 * @param data Pointer to variable where byte read from mouse will be stored
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 * @param   period  Time that the process should wait before polling again, in microseconds
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 * @see {_ERRORS_H_::errors}
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 */
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int (mouse_read_data)(uint8_t *data, uint16_t period);
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/**
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 * @brief Issues command to mouse
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 * <summary>
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 * Issues command to mouse, returns error after two consecutive errors reported by the acknowledgment byte
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 * </summary>
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 * @param cmd Command to be issued
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 * @see {_ERRORS_H_::errors}
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 */
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int (mouse_issue_cmd)(uint8_t cmd);
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/**
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 * @brief Reads byte from mouse
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 * <summary>
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 * Reads byte from mouse, giving error if exceeds number of tries to read
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 * </summary>
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 * @param byte Pointer to variable where byte read from mouse will be stored
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 * @see {_ERRORS_H_::errors}
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 */
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int (mouse_read_byte)(uint8_t *byte);
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/**
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 * @brief Polls OUT_BUF for byte coming from mouse.
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 * @param   byte    pointer to byte read from OUT_BUF
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 * @param   period  time (in milliseconds) the poller should wait between pollings of bytes
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 * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
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 */
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int (mouse_poll_byte)(uint8_t *byte, uint16_t period);
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/**
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 * @brief Converts 9-bit number to 16-bit with sign extension
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 * @param sign_bit  Sign bit identifiying the signal of the number
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 * @param byte      Least significant byte that will be extended
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 * @return Extended 9-bit number
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 */
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int16_t (sign_extend_byte)(uint8_t sign_bit, uint8_t byte);
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/**
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 * @}
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 */
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#endif //MOUSE_H_INCLUDED