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root / proj / include / kbc_macros.h @ 212

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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