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#ifndef KBC_MACROS_H_INCLUDED
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#define KBC_MACROS_H_INCLUDED
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/* KBC IRQ Line */
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#define KBC_IRQ 1 /* @brief KBC Controller IRQ Line */ |
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#define MOUSE_IRQ 12 /* @brief Mouse IRQ Line */ |
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/* Delay for KBC */
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#define DELAY 20000 /* @brief KBC Response Delay */ |
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#define KBC_NUM_TRIES 20 /* @brief Number of tries to issue command before timeout */ |
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/* I/O Ports Addresses */
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#define KBC_CMD 0x64 /* @brief Address to send commands to KBC */ |
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#define KBC_CMD_ARG 0x60 /* @brief Address to write KBC Command Arguments */ |
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#define STATUS_REG 0x64 /* @brief KBC Status Register address */ |
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#define OUTPUT_BUF 0x60 /* @brief Address of Output Buffer of KBC */ |
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/* KBC Commands */
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#define READ_KBC_CMD 0x20 /* @brief Read KBC Command Byte */ |
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#define WRITE_KBC_CMD 0x60 /* @brief Write KBC Command Byte */ |
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#define KBC_SELF_TEST 0xAA /* @brief KBC Diagnostic Tests */ |
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#define KBC_INT_TEST 0xAB /* @brief Tests Keyboard Clock and Data lines */ |
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#define KBC_INT_DISABLE 0xAD /* @brief Disable KBC Interface */ |
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#define KBC_INT_ENABLE 0xAE /* @brief Enable KBC Interface */ |
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#define MOUSE_DISABLE 0xA7 /* @brief Disable Mouse */ |
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#define MOUSE_ENABLE 0xA8 /* @brief Enable Mouse */ |
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#define MOUSE_INT_TEST 0xA9 /* @brief Tests Mouse data line */ |
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#define MOUSE_WRITE_B 0xD4 /* @brief Write a byte directly to the mouse */ |
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/* Status Byte Masking */
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#define OUT_BUF_FUL BIT(0) /* @brief Output Buffer State */ |
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#define IN_BUF_FULL BIT(1) /* @brief Input Buffer State */ |
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#define SYS_FLAG BIT(2) /* @brief System Flag */ |
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#define DATA_CMD_WRITE BIT(3) /* @brief Identifier of type of byte in input buffer */ |
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#define INH_FLAG BIT(4) /* @brief Keyboard inihibited */ |
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#define AUX_MOUSE BIT(5) /* @brief Mouse Data */ |
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#define TIME_OUT_REC BIT(6) /* @brief Time Out Error - Invalid Data */ |
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#define PARITY_ERROR BIT(7) /* @brief Parity Error - Invalid Data */ |
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/* Scancode Constants */
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#define ESC_BREAK_CODE 0x81 /* @brief ESC Break Code */ |
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#define TWO_BYTE_CODE 0xE0 /* @brief First byte of a two byte Scancode */ |
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#define BREAK_CODE_BIT BIT(7) /* @brief Bit to distinguish between Make code and Break code */ |
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/* Command byte masks */
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#define INT_KBD BIT(0) /* @brief Enable Keyboard Interrupts */ |
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#define INT_MOU BIT(1) /* @brief Enable Mouse Interrupts */ |
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#define DIS_KBD BIT(4) /* @brief Disable Keyboard */ |
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#define DIS_MOU BIT(5) /* @brief Disable Mouse */ |
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#endif //KBC_MACROS_H_INCLUDED |